EP3285978A1

EP3285978A1 - Device and method for carrying out cutting operations of open formatting edges of a printed product

Info

Publication number: EP3285978A1
Application number: EP16716455.7A
Authority: EP
Inventors: Peter Scheid; Christoph Berger
Original assignee: Mueller Martini Holding AG
Current assignee: Mueller Martini Holding AG
Priority date: 2015-04-21
Filing date: 2016-03-29
Publication date: 2018-02-28
Anticipated expiration: 2036-03-29
Also published as: US10639809B2; EP3085501A1; CN106064401A; CN107848131B; CN106064401B; JP6752026B2; US10611041B2; JP6752225B2; JP6718695B2; EP3285978B1; EP3085501B1; CN106064402B; US10059014B2; JP2016203364A; US20180056537A1; CN106064402A; EP3085502B1; JP2018513026A; US20160311126A1; US20160311125A1

Abstract

The invention relates to a device for carrying out cutting operations on at least one open formatting edge of at least one printed product. The device is operatively connected to a printed product-related advancing device for the first cutting operation and to a printed product-related transporting device which is operative after the last cutting operation. Each edge-related cutting operation can be carried out by at least one cutting device. The printed product (A) can be transported from a first cutting location (1), in which the cutting operation for a first formatting edge of the printed product is carried out, to a second location (2), in which the cutting operation for a second formatting edge is carried out. The printed product can be transported to a third cutting location (3), in which the cutting operation for a third formatting edge is carried out, after the cutting operation at the second cutting location has been carried out. The printed product can be transported from one cutting location to the next by at least one transport unit (101, 102,....) which has at least one means that grips the rear face of the printed product and transports the printed product from one cutting location to the next in a suspended manner.

Description

Device and method for performing cutting operations of open format edges of a printed product

Technical area

The present invention relates to a device for the implementation of

Cutting operations open form edges of at least one printed product, namely for the trimming of at least one head, front, foot edge according to the preambles of claims 1 and 35.

The term "open format edges" is thus understood to mean head, front and foot parts of the printed product, regardless of whether this is composed of individual pages or signatures.

For the industrial production of printed products, preferably book blocks or brochures, in small or small editions, one operates with a so-called three-knife trimmer, which is able to follow the same or variable formats and thicknesses with high cycle performance with the highest quality cut to the desired To cut formats.

At three cutting stations, the book blocks or brochures are cut to final size at the top, bottom and front of the unit for a given thickness. The book blocks or brochures are bound on the back. Suitable bindings are all known methods, such as; Thread stitching, perfect binding, saddle stitching, etc.

The three-knife trimmer can be used both as a solo machine and as a machine in a line network with other production machines. State of the art

The task of the device, hereafter referred to as a three-knife trimmer, is to cut the printed products, ie mostly book blocks and / or brochures, at the three open sides. This is done by clamping the book block or booklet (hereafter referred to as the book block) at a standstill between press bars or press plates and three cutters trimming the three above-mentioned pages of the book block. The cutting devices can be designed as counter-knife units in which two blades cut as a pair of scissors or as blade units with cutting strips, in which a knife cuts against a plastic strip and easily penetrates into the plastic strip in the end position.

In the case of such three-knife trimmers, the head and foot trimming is usually carried out in a first phase and the front trimming is carried out in a second phase. The order is not mandatory, it can be the other way around. Furthermore, it is possible to perform on the book block only the head and foot section or only the front section, which is needed for example for the production of English brochures. There are three-knife trimmers in which the book block is split between the first cut phase (e.g., head and foot cut) and the second cut phase (e.g.

Front section) stops still and there are versions in which the book block is transported in between.

There have also been known three-knife trimmers in which the book blocks are pressed for cutting between press dies and cutting cassettes and held for the cutting operation (s). When the press die is raised, the cut book block is ejected and the new book block to be cut is introduced. By means of a centering device, the book block is brought into position and then clamped by the lowering pressing ram. The knives move against the book in a swinging cut and cut the open pages. After cutting all sides of the punch is raised and the next cycle can begin. However, this three-cutter version is not suitable for a quick format change. The punch and also the cutting cartridge are tailored to the format to be processed and can only be replaced by stopping the machine.

In DE 102011105253 A1, a three-knife trimmer is disclosed, in which the blades cut against cutting strips or counter blade, the book block is held at head and foot cut and the front section by pressure strips next to the knives. In the format-dependent variable free space between the cutting bars, or counter knives on the one hand and the space between the pressure bars on the other hand, a plurality of zigzag-shaped support webs for supporting the book block is arranged during cutting. With such a three-knife trimmer, a good cut quality can be achieved because the book block is pressed or supported with the pressure bars and the zigzag-shaped support webs during cutting.

However, with this solution, it should be remembered that the book block can attach to the zigzag-shaped support webs during insertion and removal in the cutting position. This circumstance is counteracted in DE102011105 253 A1 by the transport system consists of a lower belt and a top belt, the two belts for book block transport against each other are driven together slightly so that the book block can not attach to the support webs of the cutting table or the press level. With such a book block transport, however, takes place that at different book block thickness only a book block in the transport system can be transported. This limits the allowable thickness difference from book block to book block because there are several book blocks in the transport system. In particular, in three-knife trimmers, in which the cut takes place in two stations, transporting the thickly varying book block with the described transport system is problematic. With widely varying book block thicknesses, it is therefore necessary, within the transport Systems only one book block to transport. However, this limits the capacity of such a three-knife trimmer, ie the three-knife trimmer can only be operated with a low number of cycles (power).

In DE 102011105253 A1 further three-knife trimmers are listed, which define a prior art. However, all of them are not able to meet the requirements for a short changeover time associated with the requirement of a high quality cut.

EP1504860 A1 discloses a three-knife trimmer in which the book blocks to be trimmed are grasped by a positioning device and fed to the cutting devices with a feed device. There are a plurality of spaced-apart cutting devices are provided, in which the book block are positioned by the delivery device successively each for a side section. In each cutter, a side cut is made on the positioned print product. From the positioning device, the aligned book blocks are moved with an intake gripper by a linear stroke in a transition position, wherein the orientation of the book block is not changed. The delivery of book bocks is carried out with a multiple planetary gear. For positioning of the book blocks in the cutting devices adjustable control gates are provided. The device allows easy and quick changeover to other formats. Each cutting device consists of a frame-fixed lower blade and a top blade to which a press plate is coupled via a guide and a pneumatic cylinder. The press plate clamps the book block between the press plate and the stationary lower knife prior to cutting. The book block is not a large area, but only in the cutting area pressed by the press plate and the lower blade, and the feed device. The areas of the book block that are not pressed tend to "sag" and therefore may result in insufficient cut quality, especially if soft and / or thin paper is used for the book blocks. With JP2012-218114 A, a three-knife trimmer is presented, which can process different book formats in the sequence and in which the outer sides of the book are not damaged. On a moving part, a clamping unit is mounted for gripping the back of the printed product, wherein the Einspan unit has a reference surface for positioning the back of the printed product. With a Positionieraktuator the Bewegungsstei! moved by a controller in a vertical plane and positioned in the correct format for the cutting operations on the three open sides of the printed product, so that the, in the horizontal direction moving, cutting blade can cut the printed product. At the reference surface of the chuck and a vertical abutment surface, the printed product is aligned, thereby enabling the controller, together with the format data, to approach the positions required for the respective cut and to properly position the printed product for the cut.

A disadvantage of this latter three-knife trimmer is the limited ability to vary the book format. Due to the fact that one clamping unit holds the printed product for all three sections, the clamping unit has to be designed substantially smaller than the smallest printed product to be processed. If the printed product has a much larger format, then the plates, which are additionally used to support the printed product during cutting, must be provided with a large area of exception. A large exception, however, has a detrimental effect on the quality of cut.

For the front section, the clamping unit can dive more or less deeply into the exception area of the plates. The printed matter is properly supported only when the gripping unit is inserted deeply into the exception area of the plates. In order for the printed product, without replacement of the plates, can be sufficiently supported, only a small difference in bookbord width is editable with the three-knife trimmer.

Presentation of the invention

The present invention is based on the object to provide a trained as a three-knife device. The present invention is further based on the object to propose a method for operating such a device designed as a three-cutter, which is able to process continuously printed products of the same or different formats and thicknesses with high cutting performance and quality of cut, so by definition to format to crop. The inventive three-knife trimmer and its operation are also suitable for trimming stacked brochures according to the same procedure as is the case with a book block.

The three-knife trimmer is therefore used for the trimming of open format edges, also called side edges of the printed products, such as books, brochures, magazines used, wherein for the sake of simplicity predominantly the terms "printed product", selectively "book block" or "booklet" are used below ,

By means of the three-knife trimmer according to the invention, reliable processing of very small runs up to the minimum number of pieces 1 can be realized without having to provide stoppages due to a changeover from one to the next format. Thus, the three-cutter can be supplied with book block formats of different sizes and / or the production of book blocks can be processed by different sections to be cut off at the edges.

In accordance with the invention, the invention is achieved by an apparatus and a method in which the printed product is transferred from a first cutting location, in which the cutting operation for a first side edge takes place, to a second cutting location

Cutting location in which the cutting operation for a second side edge takes place is transferred, wherein the printed product after the performed cutting operation at the second cutting location a third cutting location, in which the cutting operation for a third side edge takes place, and that the transfer of the printed product from one cutting location to the next is accomplished by at least one transport unit.

In order to keep the economy of the trimmer according to the invention high, the format change takes place during the course of the machine, preferably during the period of time available for the infeed and outfeed of the printed product.

The conversion from one format to the next has to be done accurately, so that every cut print product meets the requirements for dimensional accuracy.

After the inventive three-knife trimmer can be used even with a run of a printed copy, the goal of the trimmer according to the invention must be seen in the fact that the copy only once available is cut 100% reliable.

Another significant advantage of the invention is the fact that the three-knife trimmer is simple in design and reliable, so that its operation can be done even by auxiliary personnel.

By the inventive three-cutter is ensured that the dimensional accuracy of the cut printed product and its straight, parallel and rectangular cuts are guaranteed against the front and back surface of each printed product.

The three-knife trimmer according to the invention thus ensures a high quality of cut even with larger print product thicknesses, by maximizing the printed product over the entire surface is clamped by at least one pressing device between the first and last side, during which the cutting operations take place at the open side edges, so that the risk of quality-reducing "nose formation" can be ruled out in this cutting operation be achieved by a plurality of press plates or recordable by segmented press plates or individually operable pressing elements.

In this case, the printed products are lying, with the binding processed back ahead and fed with approximately the same pitch via a conveyor belt to the three-knife trimmer. The approximately uniform pitch is given either by a clocked supply of the printed products to the conveyor belt of the three-knife trimmer, or such feeding is produced by known devices and methods in front of the conveyor belt.

In another embodiment, the printed products with an irregular pitch are fed to the conveyor belt of the three-knife trimmer. A clocking device ensures that minimal divisions (distance between the leading book spine edge and the spine edge of the subsequent product) are not undershot. A sensor detects when the printed product arrives at the conveyor belt of the three-knife trimmer. If the spacing between the printed products is greater than the minimum spacing, it may be provided as the first preferred variant that the printed products located within the rotary trimming process are finished, and then the infeed is resumed. As a further option, it can be provided that the control reduces the speed of the three-knife trimmer and synchronizes the three-knife trimmer to the cycle of the printed product. If the division then exceeds a maximum mass, then it can also be optionally provided that the controller generates empty cycles on the three-knife trimmer. The transport unit consists essentially of at least one support, which end is provided with at least one print product-related gripper, wherein the gripper detects the printed product to be trimmed spine side, whereby the printed product is transported hanging, and wherein the support and gripper relative to the cutting locations following control-assisted translational movements i) takeover of the printed product by the gripper of the support after completion of the first cutting operation at the first cutting location; ii) transferring this print product through the same support / gripper to the second cut location after the cutting operation at the first cut location; iii) transfer of the same printed product by the same support / gripper to the third cutting location for the third cutting operation after cutting operation at the second cutting location; and thereafter iv) returning the support / gripper to the home position at the first cutting location for retaking a subsequently delivered printed product after the first cutting operation at that cutting location is completed and completed.

As a further variant, the transport unit may consist of two print product-related supports, each with a gripper, which also captures the print product to be trimmed spine side, so hanging, these supports are in operative operative connection with the associated grippers, and wherein the supports and grippers opposite i) The first gripper of the first support accepts the printed product after the first cutting operation at the first cutting location: ii) The first support gripper transfers this printed product to the second cutting location, where it positions the printed product for the execution of the second Cutting operation and then returns to the starting position at the first cutting location, where the renewed takeover of a nachgeliefert printed product takes place, after this the first Cutting operation was performed at the first cutting location; iii) Meanwhile, the second gripper of the second support picks up the printed product immediately after the cutting operation is completed at the second cutting location and transfers it to the third cutting location where the third cutting operation takes place; iv) Thereafter, the second support with the second gripper returns to the second cutting location where there is again a printed product replenished and already trimmed by the first support / gripper to pick it up and transfer it to the third cutting location.

Both when operating with one and two supports, the head part is cut at the first cutting location, the front part at the second cutting location, and the foot portion of the printed product at the third cutting location.

A further transport unit of the printed products from one cutting location to the next is that at least two, three supports run along a substantially circular, round, elliptical-like path, said functional circumferential path consisting of a front and a substantially parallel rear path, wherein the two paths merge into each other through a lateral curvature. The front track serves to guide the supports straight or quasi-straight along the cutting edge. The number of supports along the route is dependent on the maximum permissible cycle, ie, each support is in charge of a printed product, and this leads without handover over the three cutting locations. To maximize production, the clock is designed so that the supports follow each other closely, and the distance to each other depends on the time taken for the individual cutting operations, which usually involves more than two or three supports. For example, a reduction in the number of supports can be achieved as they accelerate along the trailing path between the last and first cutting operations. Thus, with such a provision, the intermediary cutting site specific levies and takeovers of the printed product can be circumvented by reciprocating supports. On the other hand, as a rule, in order to production, more peripheral support is foreseen, and at the same time the infrastructure of the elliptical track is more demanding.

Such a transport variant characterized by an ellipse-like route can be used as a basis for central pruning of the printed products, ie if the three cutting operations are carried out at a single cutting location, ie if the takeover of the printed product, its supply to the central cutting location, and its subsequent delivery done by one and the same support. Advantageously, then this support does not go back on the front track, which would inhibit the production flow, but undertakes the return trip for the acquisition of a new printed product then on the back track.

As far as a trimming of all format edges of the printed product takes place at a single central cutting location, preferably the following kinematic sequences should be provided:

Once the printed product is properly positioned within a stationary clamping device, it is finally pressed against the fixed wall of the clamping device by a press beam and thus fixed for the cutting operation. The press beam is preferably located at the lower end of a spindle which is drivingly connected to a servomotor controlled by a servo drive, via a line. The servo drive is connected via another signal line with a sensor that detects the position of the press beam. Turning the spindle moves the press bar in the direction of the printed product. The servo drive is also connected to a higher-level control. Once the printed product has finally been fixed, it is then trimmed with a knife on the front and then with two side knives on the head and on the foot. The order of cuts can also be reversed, head and foot before front trim. It is obvious that the movement of the side knives and the associated press beam must be designed out of phase with respect to the movement of the front blade and the associated press beam, so that a collision of the knife can be prevented. So as soon as the cutting is done by the side knives, the local pressures (clamping device, press bars) are terminated, and the cut printed product is carried away.

This process is in the inventive three-cutter in itself, especially as regards the processing sequence of the first and third cutting location, not mandatory, according to which it must always be at the head circumference in the first circumcision, but it is readily possible on the first

Cutting the Fußpartie and then edit the head section at the third cutting location, wherein at the second cutting location as before, the circumference of the front part of the printed product is carried out, this optimally designed to follow the translational movements on the basis of the invention.

Whether the head or foot section is machined at the first cutting location depends on how the feed of the printed product to the three-knife trimmer is scheduled, i.e., whether the reading front side of the printed product is directed up or down on the conveyor belt. In both cases, the back edge of the printed product remains in transit to the three-cutter prior. If such a change (head / foot section) is made, then it must be ensured that appropriate control-technical precautions are taken for the sections to be cut off, in particular when head and foot sections with different section lengths are to be processed.

The translational movements of the gripper or the gripper therefore detect two resp. three levels of work, namely:

A first plane (X) characterized by the transfer of the printed product from one cutting location to the next; A second plane (Y) characterized by the charge and discharge of the printed product at the respective cutting location;

- A third level (Z), which is characterized by a lateral adjustment (offset movement) of the support / gripper with respect to the stationary pressure product-related clamping devices at the cutting location, said lateral adjustment is fixed, or optionally controlled can be used.

The gripper itself is end equipped with pressure-product-related jaws, said gripper resp. the one or more supports in the Schneiderten has an additional translational degree of freedom in all the above levels (X, Y, Z). The seizure of the respective printed product is maximized at its center of gravity, and / or the seizure of the printed product depending on the cut off sections on the open side edges (head, front, foot) coincides with the best possible geometric location, with the latter possibility a medium to strong deviation from the theoretical focus of the printed product is possible.

In principle, a clamping device can be operated according to the following criteria: a) The jaws associated with a clamping device are directly or indirectly in operative connection with a drive operating for the frictional clamping action, the jaws guided by the drives having adjustable and / or predictively controlled lifting and traction profiles which are aligned to any format expression of each printed product to be processed. Thus, the printed product can be detected symmetrically or quasi-sym metrically by the executed by the jaws non-positive motion profile with respect to the center line of the back of the printed product. Furthermore, it can be achieved that with the jaws, at least during the operative phase, a clamping force on the printed product by a mutually coordinated uniform, non-uniform or adaptive velocity and / or motion profile can be exercised. b) The mutually coordinated uniform, non-uniform or adaptive speed and / or movement profile of both clamping elements of a clamping device can also be provided for a one-sided pressing force of a single pressing element. In terms of quality assurance of the cutting operation, this relates to the press beam, which is in direct operative connection with the knives, such that its pressing force must be exerted on the printed product according to certain criteria. The speed profile of the press beam can be transferred to another mode immediately after the first contact with the printed product. This also applies to the further development of force on the printed product, which can be successively monotonous or quasi-monotonous, rising or falling depending on the specification. If, therefore, a certain amount of flexion is required in the development of force towards the end of the pressing in order to protect the possibly slightly thickened back part of the printed product, this can be provided by activating a corresponding control profile, according to which, for example, the monotonously increasing force development into a curve after Principle of a capacitor charging can pass. Accordingly, it is then readily possible to provide an exponential force development, which is used as an intermediate or overarching.

The cutting stations of the three-knife trimmer are at each cutting place in operative connection with at least one stationary, quasi-stationary or movable force-acting clamping device, which is responsible for the basic detection and generation of the pressing force on the printed product to be trimmed, this clamping device is tuned to the format size of the printed product , So have an optimized fixed contact surface, or in the course of operation by simultaneous adjustments to the respective format sizes of the printed product.

The exercise of force, so the pressing force to be introduced, such a clamping device on the printed product during the cutting operation acts force predominantly against the exerting of the jaws of the gripper closing force on the printed product, such that this fixed during the whole cutting operation by the outgoing force of the respective clamping device remains positioned.

The closing force of the jaws of the gripper, as far as this at the place of

Cutting operation remains, does not affect the pressing force of the clamping device and their vectors on the printed product. This means that the pressing force of the clamping device relative to the closing force of the jaws of the gripper behaves absolutely effective and force-predominant.

At least one clamping device within the three-knife trimmer can consist of two clamping plates which execute at least one force-exerting closing movement relative to one another. Furthermore, at least one further clamping device can be made of individual composite pressing bars at a suitable cutting location, which exert the pressing force on the pressing surfaces of the printed product, these pressure bars in their entirety forming a pressure bar battery.

According to the invention, a delivery device (also called insertion wheel or star-shaped wheel because of its design) is initially in operative connection with the first cutting operation at the first cutting location. Basically, this delivery device in the form of a four-part wheel, with other divisions are possible. If the promotion of a coherent book block, so the operation of such a multi-part delivery device is the following: During a first 90 ° rotation of the feed device a hinged rake-like guide is pivoted against the book block, such that it lies after the 90 ° rotation on the back and is protected against fanning and / or falling over. The rake-like guide is coupled to a clamping unit acting within the feed device, which clamps the book block in a lying on the back position short term. This clamping unit is kinematically designed so that the rake-like guide is transferred to a book block thickness-dependent position. In this position, the clamping unit performs a small opening, so that the book block, following gravity, aligns at its back against a stop surface within the corresponding station of the delivery device. Then the clamping unit closes again, whereupon the book block is held in a defined position for the further processes.

The delivery device, so the insertion wheel rotates on it by two bars by 90 ° on and brings the book block in a now hanging position. During this rotational movement, the first rake-like guide and an operatively connected second guide are pivoted away from the book block, such that the freestanding pages or signatures of the book block hang vertically downwards solely by gravity, during which the book block in the region of its back through said Clamping unit is held.

The delivery device of the device according to the invention for printed products, which also consist of two or more brochures, can likewise be formed by such a four-part delivery device, the functioning of this delivery device then being the following:

During a first 90 ° turn of the feed device, a hinged rake-like guide is pivoted against the booklets, such that the booklets are then on their backs after the 90 ° turn and are thus protected against fanning out and / or falling over. The rake-like leadership is with coupled to a clamping unit acting within the adjusting device, which clamps the brochures in a lying on the back position short term that this clamping unit is kinematically designed so that the rake-like guide is transferred to a thickness-dependent position. Thereafter, the clamping unit re-opens a little, so that the brochures follow gravity, following their backs against an abutment surface within the delivery device, and / or intervene during this process additional mechanical and / or vibration-triggering means which close the leaflets align a format unit block. Then the clamping unit closes again, whereupon the brochures are held in a defined position.

The delivery device rotates by two bars by 90 ° and brings the booklets in a now hanging position. During this rotational movement, the first rake-type guide and an operatively second guide are pivoted away from the booklets so that the freestanding pages or signatures of the brochures hang vertically downwards solely by gravity, while the booklets are in the region of their backs through the clamping unit being held.

On the other hand, in the region of the first cutting location, this feed device is in operative operative connection with a movable clamping clamp-equipped transport clamp which performs the function of the clamping device and which takes over the printed product from the feed device according to the kinematics described above and supplies it to the first cutting operation.

A flush valve is in operative connection with the delivery device, and is intended to supplement the already explained measures to achieve a secure positioning of the book block against the stop surfaces.

An abutment surface is used both in individual books and in a stack of leaflets to align with the backsides of the printed products based on a fixed predetermined contact surface within the delivery device basis. On the other hand, it must be ensured that the head and / or foot of the printed products before the first cutting operation, a corresponding hanging elongated positioning of the printed products in the flow direction is ensured.

In individual books, this happens insofar as the format-moderate takeover of the individual book is guided by the delivery device by the transport clamping device of a sensor which responds to the outer edge of the overhanging envelope. of the book block itself in the area of the head, resp. foot lot. This ensures that the chip cut there in the book block has a coordinated size.

For a stacked package of individual brochures, lateral means must be provided prior to the first cutting operation to ensure uniform alignment of the cutting edge edges of this package.

In summary, the function of the delivery device is to pivot a hinged, rake-like running guide against the book block, so that this after a 90 ° rotation, lying on his back, does not fanned and can not fall over. The rake-type guide is coupled to a clamping unit, which clamps the book block in a position lying on its back for a short time and is kinematically designed such that this rake-like guide can be transferred into a bookmark-dependent position. Thereafter, the clamping unit opens a little again, so that the book block or brochures, following the gravity, gets the opportunity to align itself on its book block back side against the stop surface of the delivery device. Then the clamping unit closes again, whereupon the book block is held in a defined position. This procedure, which is optimized in itself, thus guarantees that the back sides of the printed products assume a defined position, which is decisive for the following cutting operations.

Nevertheless, it is correct from a qualitative point of view, if additional measures (flush valve, acting in the vertical and horizontal plane) are provided, which should intervene in those cases when the use of gravity alone is not sufficient for different design of the printed product, in particular their book block backs in order to ensure the desired defined position of the book block back side relative to the associated stop surface.

In this context, it must be assumed that the printed products, in particular the book blocks, are in most cases finished with an envelope which has a relatively large overhang from the enclosed body on all sides (head, foot, front). This overhang in itself forms no restrictions for the cutting process, but must be used for the precise cutting of the printed product within the various

Cutting operations are detected with additional sensors. Due to logistical aspects, it is advantageous to operate with the same envelope sizes as possible, so that a wide range of different book block formats can be recorded. So it can be assumed that the majority operates with a relatively large overhang.

In order to accomplish the secure defined position between the book block back side and the stop surface within the delivery device even in the case of envelopes with a large overhang in the area of the head, foot and front parts, it is proposed to enrich the state of the art during the short opening of the clamping unit In order to use gravity on the printed product, additionally intervened with at least one adequate flush valve, which directly or indirectly supplies the necessary pressure force via the envelope overhangs can exert on the bordered printed product, so that at least the back side of the printed product rests securely on the associated stop surface.

For this purpose, the two front cover overhangs of the book block are combed by a brush in the pressure plane optimally aligned brushes or by other flexible mechanical or pneumatically controlled means, so that the resulting pressing force transmits via Umschlagüberhänge on the body of the printed product, such that this then safely rests on the scheduled within the delivery device stop surface.

Using the example of a brush comb whose material flexibility is formed so that the free resulting portion of the brush comb between the two Umschlagüberhängen by the vertical or quasi-vertical pressure movement can additionally penetrate to the front of the book block to unfold there an additional or primary pressure force can ,

Basically, this procedure can also be provided when it comes to a by adequate means lateral pressure force on the head or foot section of the printed product to form a uniform level, even if the package consists of different brochures, so this uniform edge then a sensor receives that optimum positioning within the transport clamp device.

According to the invention, as already mentioned above, the clamping device at the second cutting location is pressure strips which are arranged on both sides of the pressing surfaces of the printed product, and which pressure strips simultaneously or subsequently press the printed product from at least one side.

The number of operationally used pressure bars on both sides is determined in each case depending on the format size of the printed product to be processed control technology, and it is also possible that the for the Ein- Set approved pressure bars for the exertion of the pressing force on the printed product to perform oppositely directed movements, be it with the same force, or by a controlled graduated power delivery.

With a subsequent action of the pressure bars on the printed product, the pressing action, i. the Presskraftentfaltung, with the first pressure bar in the area of the back of the printed product to then continue continuously by a subsequenten or semi-consecutive sequence to approximately in the area of the edge to be cut.

Subsequent control of the pressure bars along the format of the printed product also causes the air trapped between the sides or signatures of the printed product to be continuously squeezed out until a complete thickness consistency of the block is achieved. Only then, in particular, can the cutting operations directed at the front edge of the printed product be successfully carried out. This procedure can also be carried out in the other cutting operations with appropriate clamping devices.

Regardless of which type of clamping device is used, whether by means of clamping plates or pressing bars, the printed product is additionally pressed in the immediate vicinity of the cutting operations by the use of pressing bars, thus achieving the ultimate optimum conditions for the cutting operation.

In the area of the third cutting operation at the third cutting location, another force-exerting clamping device is used, which is constructed according to a four-clamp system, whereby a different subdivision is also possible. In order not to trigger linguistic conflicts with the previously discussed clamping devices, we will speak here of a four-clamp system. This four-clamp system can simultaneously, directly or indirectly, fulfill the function of a pressure-product-related delivery device. This four-staple system of the device according to the invention, which accommodates both book blocks and brochures and can provide further processing, is operated according to the following criteria:

The book blocks or booklets introduced into the four-staple system for the third cutting operation become the third during the cutting process

Cutting location between a belonging to the four-clamp system movable jaw and a fixed jaw pressed.

After performing a cutting operation at this third cutting location, the rotatable four-staple system moves 90 ° during each cycle, and thus also a staple with the book block or leaflets orthogonal to the knife movement at the third cutting location away from the knife. In this position, the book block or the brochures are then removed from the lumber system and transferred to a conveyor belt.

The cutting operations in the cutting locations of the three-knife trimmer are carried out with respect to the trimming of the individual open side edges of the printed product, each with an individually driven cutting device, wherein at least one cutting device is operated with a single-acting cutting blade.

This cutting device is preferably modular in construction, and it consists of at least three cutting stations for the cutting of the head-front and foot edge, which Schneidstattonen are arranged U-shaped with the open side down. The cutting operations are then operatively connected to at least one locally disposed pressing beam, the pressing beam acting against the inner planes of the U-shape. With this U-shaped configuration, the cut sections of the book block or booklets all fall down. In addition, the three-knife trimmer according to the invention has the following advantages over the known three-knife trimmers:

During the individual cutting operation, the printed product is formed in variously formed clamping devices (clamping plates or pressure bar batteries), with additional press action by the already mentioned pressing bars, so that the printed product is almost completely recorded during each cutting operation. Only in the area of the back the printed product is not recorded. This is not critical, because the respectively used back binding (thread stitching, adhesive binding, saddle stitching, etc.) sufficiently holds together the printed product in this area, while the clamping plates or pressure strips used to support the printed product integrally sufficient. This full-surface pressing of the printed product in conjunction with the pressing beams used are the prerequisites for a high quality of cut.

Accordingly, the inventive almost full-surface pressure of the printed product is achieved in the simplest way. It is not necessary to provide format-dependent webs, support elements or support strips. As a result, in the three-knife trimmer according to the invention a high power density can be achieved at high cycle rates.

Since with the inventive three-cutter the printed product is transported hanging to the individual cutting stations of the cutting device, no support of the sides of the printed product is necessary in the transfer parts in the transport system.

So because the printed products are not transported horizontally, the book pages do not bend at not full-surface contact surfaces between the support points, and thus they can not attach to the intended transfer points. The three cutting stations of the cutting device are U shape ig ^'s addressed with the open side of the U downward. The cut off section ^length at the Kan ^¬ th, ie at the open sides of the printed product is carried out in all three

Cutting operations (head, foot, front) against the inside of the U-shape.

This allows one to operate with a single disposal facility whereby all accruing portions can be jointly "carried out." The portions fall down by gravity without further aids, where they can be globally collected or continuously transported away.

A good section disposal is of great importance because in the industrial production of individual printed products (book blocks) the different formats are very often produced only on the three-knife trimmer. In this case, the printed products are fed to the three-cutter in a size which is matched to the largest final format, which naturally leads to large sections to be cut off in the case of small end formats.

However, in three-knife trimmers with cutting cassettes and press dies, it is customary to align the printed product with two right-angled stops in the corners of spines to the head side and spine to the foot side, as well as a stop from the book block front side. When creating variable-size printed products (book blocks), envelopes of the same size are usually used for a particular size range.

Said pressing beam is thus directly in operative connection with the respective cutting blade and ensures that that force is exerted on the printed product, which is indispensable for a clean cut.

In principle, two main variants are in the foreground: On the one hand, there is a forceful coupling between the press beam and the cutting blade, ie the press beam force therefore has a fixed value, with the speed profile (pressing speed / acceleration) then generally also running monotonously. Another variant consists of decoupling the force exerted by the cutting blade and the pressing beam so that the pressing beam then operates according to the following criteria:

The construction of a certain force on the pressing beam is done by building a corresponding torque on the servo motor by a servo drive. Based on a thickness measurement, the optimum pressing force is determined on the printed product, which can be done easily by stored control profiles. As a rule, a single calibration suffices for detecting a specific thickness variability of the printed products, as far as the underlying press force characteristic can be regarded as constant, because the differences in book block thicknesses within a job are relatively small.

On the other hand, however, it must be taken into consideration that a substantial reduction of the pressing speed and, above all, the acceleration can be achieved by optimizing the pressing stroke, especially in the case of stiff and / or thin printed products. But it is advantageous in this concept that regardless of the speed of the product sound, the respective cutting device (s) always work at the maximum speed, which is not limited by the cutting speed, but by the limits determined by the mechanics. It is also essential that an increased cycle time is available at low machine speeds, in particular for the operations of transporting, aligning and pressing, since the cutting process always requires the same amount of time.

If the thickness of the printed products now varies within a certain frame and if these are produced by a fixed edge processing, the envelope on the uppermost side of the printed product is not the same size as on the last side of the same. If the height of the printed product varies, then the envelope is more or less dependent on the printed product. In general, will be the printed products were made with a solid supernatant of the envelope on one side and a variable supernatant on the other side. For such products, the orientation of the book block, as in the trimmers with

Cutting cassettes and press punches, unsuitable.

In contrast, in the inventive three-cutter the still uncut printed product is aligned at the foot or head edge and the back edge. Thus, the variable projections of the envelope in terms of width, and possibly also the height of the printed product play no role.

For each printed product to be cut, the three-cutter control product data must be known, from which the necessary movements of the transport organs can be calculated so that at the end a cut print product is produced, which has the desired format dimensions.

These data can be transmitted to the controller in a variety of ways. Here are some examples of options:

Each printed product is equipped with an identification feature. A feature reader at the entrance of the three-knife trimmer reads the identification mark (for example: one or two-dimensional barcode, RFID chip, character, image, etc.) and transmits the information from the feature with the machine cycle assignment to the controller. The feature may include the necessary information that maps the cut print product dimensions, or the missing information may be supplemented from control profiles stored in a database.

In another system, the printed products are clocked fed to the three-knife trimmer. With each cycle, the three-cutter control is provided with the information necessary to cut the printed product to the correct dimension. Here, too, data supplied with the printed product can be supplemented by data from a database. Another possibility is to make the data known to the three-knife trimmer with an order of the printed products before their feeding takes place. The three-knife trimmer processes the next data set in the given order with each printed product being fed. The feeding of the printed products must be done in the right order. For control, a feature reader can be used in addition, which controls the order.

As already mentioned above, the printed products lying, with the machined side (thread stitching, perfect binding, saddle stitching, etc.) are advanced and fed with approximately the same pitch via a conveyor belt to the three-knife trimmer. The approximately uniform pitch is either given by a clocked delivery of the printed products to the conveyor belt of the three-knife trimmer, or it is produced by prior art devices and methods in front of the conveyor belt.

In another embodiment, the printed products with an irregular pitch are fed to the conveyor belt of the three-knife trimmer. A clocking device ensures that minimal divisions (distance from the book back edge to the book back edge of the next product) are not undershot. A sensor detects when a book block arrives at the conveyor belt of the three-knife trimmer. If the distance between the book blocks is greater than the minimum spacing, it can be provided as the first preferred variant that the printed products located within the three-cutter substrate are finished, and then the infeed is resumed.

As a further option, it can be provided that the control reduces the speed of the three-knife trimmer and synchronizes the three-knife trimmer to the cycle of the printed product. If the division exceeds a maximum dimension, then it can also be optionally provided that the control system empties bars at the Schneider generated, as has already been stated above in connection with the operation of the Zustelivorrichtung.

Short description of the drawing

The invention will be described in more detail below with reference to the drawing. All elements not essential to the instant understanding of the invention have been omitted. In the following, the printed product is generally referred to as a book block, which then has room to respond to other types of printed products, such as brochures.

In the drawing shows:

Figure 1 Translational movements of the supports and grippers within the X and Y planes;

Figure 2 is an overall view of the three-knife trimmer with a snapshot of the supports;

FIG. 3 shows a further view of the three-knife trimmer with another snapshot of the supports;

FIG. 4 inlet device for the book blocks in the three-knife trimmer;

Figure 5 is a plug-in wheel as Zustelivorrichtung;

Figure 6 is a transport clamp;

FIG. 7 shows a modular cutting device including the three cutting stations; Figure 8 is a snapshot during operation of the pressure bars;

FIG. 9 a further snapshot during operation of the pressure bars;

FIG. 10 shows another snapshot during the cutting operation;

FIG. 11 shows a rotatable four-staple system as clamping device and delivery device;

Figure 12 shows the ultimate pressure of the book block during the cutting operation;

Figure 13 Course of the development of forces of various clamping elements during a cutting operation;

Figure 14 is a flush valve for the vertical pressure on the printed product;

Figure 15 is a flush valve for horizontal pressure on the

Print product;

16 shows a further transport device of the printed products.

Embodiments of the invention

FIG. 1 schematically shows the translational movements of a transport unit belonging to a three-knife trimmer 100 whose movements are carried out from two print product-related movable supports 101, 102, these supports being described in detail later in the description of the remaining figures. will come into operative connection with each other. The supports have end-product-related grippers 103, 104 with clamping jaws, which grasp the print product A to be trimmed in sequence A ^{R in} succession. The supports themselves carry out the following coordinated control-supported translational movements in relation to the cutting locations 1, 2, 3, also called cutting stations:

The first support 101 actively takes over the printed product A after the first cutting operation at the first cutting location 1. The first support then transfers this printed product A to the second cutting location 2, and returns to the starting position 1 at the first cutting location 1 for a new takeover of the printed product nachgeliefert printed product A, this after the first cutting operation has been performed at the first cutting location 1. In the meantime, the second support 102 accepts the printed product A immediately after the cutting operation at the second cutting site 2 has been completed, and transfers this printed product to the third cutting site 3 where the third cutting operation takes place. Thereafter, the second support 102 returns to the second cutting location 2, where already again provided by the first support and already trimmed further printed product A for picking up and transfer to the third cutting location 3 is ready.

The translational movements of the supports 101, 102, with the connected grippers 103, 104, detect two resp. three levels, namely, in the first level X is performed by the transfer of the printed product from one cutting location to the next; in the second plane Y, the charge and discharge of the printed product at the respective cutting location is completed. Optionally, a third plane Z (not shown in detail) is then used, in which, as required, a lateral adaptation (off-set path) takes place relative to the pressure-product-related stationary clamping elements at the respective cutting location of the three-knife trimmer 100. In the following, the effect of the translational movements of the supports on the grippers will be described, since they best reflect the operations of the trimmer.

FIGS. 2 and 3 show the three-knife trimmer 100 in a 3D representation. The book blocks A ⁿ are lying, with the book block back ahead and with approximately the same pitch, fed via a conveyor belt 1 0 the three-knife trimmer 100. The approximately uniform pitch is either given by a clocked feeding of the book blocks to the conveyor belt of the three-knife trimmer, or it is generated by prior art known devices in front of the conveyor belt.

In another embodiment, not shown, the book block with an irregular division of the conveyor belt 110 of the three-cutter 100 are supplied. A clock device ensures that minimal divisions (distance from one leading book edge to the book back edge of the next book block) are not undershot.

By a sensor not shown in detail that time is detected in which a book block arrives at the conveyor belt of the three-knife trimmer. If the distance between the book blocks is greater than the minimum spacing, then the controller reduces the speed of the translation movements of the three-knife trimmer, whereupon the trimmer is synchronized to the beat of the supplied book block. If the pitch exceeds a maximum dimension, the controller is programmed so that it is capable of generating empty cycles on the three-knife trimmer.

The book blocks A ⁿ are aligned on the conveyor belt 110 by a fixed stop on the head or foot side. This can be done by a transport route with slightly skewed transport rollers, or by other methods known from the prior art methods. The remaining modules of the three-knife trimmer according to the instructions in FIGS. 2 and 3 will be described in detail in the following figures.

A flush valve 125 (see FIGS. 3 and 14) is in operative connection with the insertion wheel 120 (delivery device), and is intended to supplement the already explained measures in order to achieve a secure positioning of the book block with respect to its abutment surfaces.

An abutment surface is used on the one hand both in individual book block as well as in a stack of brochures for alignment with the back side of the printed products against a fixed predetermined contact surface within the insertion wheel 20 basis. On the other hand, it must be ensured that the head and / or foot of the printed products before the first cutting operation have a corresponding hanging longitudinal positioning i flow direction.

In book blocks, this happens insofar as the format-moderate adoption of the individual book is controlled by the insertion wheel 120 by the transport clamping device 130 by a sensor which responds to the outer edge of the overhanging envelope. of the book block itself in the area of the head, resp. appealing to a foot party. This ensures that the edge zone cut there has a coordinated size in the book block.

In a stacked package of individual leaflets, lateral means should then preferably be provided prior to the first cutting operation, which ensure a uniform alignment of the cutting edge edges of this package.

The function of the insertion wheel 120 is therefore to pivot a hinged, rake-like running guide against the book block, so that this after a 90 ° rotation, lying on his back, not fanned and can not fall over. The rake-like guide is coupled to the clamping unit, which clamps the book block in a lying on the back position short term and Kinematically designed so that this rake-like leadership can be converted into a book thickness-dependent position. Thereafter, the clamping unit opens a little again, so that the book block, following gravity, gets the opportunity to align itself on its book block back side against the Anschlagfiäche the Einschubrades. Then the clamping unit closes again, whereupon the book block is held in a defined position.

This procedure, which is optimized in itself, thus guarantees that the book block back side assumes a defined position, which is decisive for the following cutting operations.

Nevertheless, it is from a qualitative point of view, if additional measures are provided, which should intervene in those cases when using different embodiments of the book block, in particular the book block back, the use of the gravity component alone is not enough to the desired defined position of the book block back page against the Ensure appropriate stop surface.

In this context, it must be assumed that the book blocks are in most cases made up with an envelope which has a relatively large overhang from the original book block body on all sides (head, foot, front). This overhang in itself forms no restrictions on the cutting process, but offers logistical advantages because of its unification, insofar as a large range of different book block formats can be recorded with the same envelope size. So it can be assumed that the relatively large overhang will be used by a majority.

In order to accomplish the safe defined position between the book block back page and stop surface within the insertion wheel 120 even with envelopes with a large overhang in the head, foot and front sections, is the proposed enrichment of the prior art, during the short opening of the clamping unit to allow gravity to act on the book block, at least with a flush valve 125, 126 (see Figures 14, 15) to operate in an adequate form, the necessary pressure force via the envelope overhangs directly or indirectly can exercise on the book block, so that the book block back side rests securely on the associated stop surface or is aligned laterally.

For this purpose, the two front cover overhangs of the book block are detected by in the pressure plane angle optimally aligned brush combs (see Figures 14, 15) or by other flexible mechanical or pneumatically driven means, so that the resulting contact pressure via Umschlagüberhänge on the body of the book block A transmits, such that it then rests securely on the disposed within the insertion wheel 120 stop surface or otherwise positioned horizontally.

The example of a brush comb (see Figures 14, 15) whose material flexibility is achieved so that the free resulting portion of the brush comb between the two Umschlagüberhängen by the vertical or quasivertikale Andruckbewegung can additionally penetrate to the front of the book block to there a to develop additional or predominant pressure.

In principle, this pressure force can also be provided when it is a matter by a suitable means in the form of another flush valve 126 (see Figures 3 and 15) to exert a lateral pressure force on the head or foot section of the printed product in general, with the aim of the formation of a uniform level over all the printed products of the package, so that this edge can then be reliably detected by a sensor in order to create that optimal positioning within the transport stapler 130, so that the subsequent cutting operations (head and foot) can be performed properly.

As can be seen in this respect from Figure 4, the book blocks are pressed by slightly skewed transport rollers 113 in the transport direction 1 2 against a fixed stop 11 1 and then transported on to the three-knife trimmer 100. The fixed stop 111 may be formed with a revolving belt not shown in detail or even as a solid plate.

The book block A ⁿ then pass into a transfer position, from which they are raised, for example, by a rotating Einschubrad 120 and brought by rotation in position.

As can be seen in this regard from FIG. 5, during a first 90 ° rotation of the insertion wheel 120, which fulfills the function of a feed device in relation to a subsequent operation, a hinged, rake-like guide 121 is pivoted against the book block A, so that the book block moves beyond 90 ° Turn, lying on your back, do not fanning and can not fall over. The rake-type guide 121 is coupled to a clamping unit 122, which clamps the book block in a supine position for a short time, and is kinematically designed so that the rake-like guide 121 can be transferred into a book thickness-dependent position. Thereafter, the clamping unit 122 opens a little again, so that the book block A, following the gravity, gets the opportunity to align itself at its book block back against the stop surface 123 of the insertion wheel 120. Then the clamping unit 122 closes again, whereupon the book block is held firmly in a defined position. The four-part insertion wheel 120 now rotates for two cycles by 90 ° each and ensures the printed product generally in a now hanging position for further processing. During this rotational movement, the first rake-like guide 121 and a second rake-type guide 124 operatively associated therewith are slightly pivoted away from the book block, leaving the pages of the book block alone gravity, hanging down vertically while the book block is held at the book block spine by the nip assembly 122.

In this position, an open transport clamp (clearly visible in Figure 2, Item 130) moves horizontally in the direction of the book block back over the book block and takes over this large area.

As can be seen in detail in Figure 6, this transport clamp 130 consists of two jaws 131, 132. Preferably, the transport clamp operates so that one jaw 131 does not make a stroke while the other jaw 132 makes the whole stroke. Together, the two jaws 131, 132 drive two different offsets, which are related to whether the printed product is being transported in general or an empty run is being made. Optionally, with certain variable and / or inconsistent book block thicknesses, it can be provided that the stroke of the two clamping jaws 131, 32 of the transporting clip 130 is designed individually, ie the same or different paths are taken until the final pressing position is completed.

The transport clamp 130 can be moved horizontally by a linear motion device 133. A not shown in detail controlled drive moves the transport clamp 130 positionally accurate against a book block compliant transfer position. This takeover position is always dependent on the section to be cut off, which is to be made on the top or bottom of the book block. Then, in the transfer position, the transport clip 130 closes, thereby clamping the book block between its front and back surfaces over a large area. Only the back area and the section area of the book block to be cut off remain free. For this purpose, reference is made to the description of Figure 12.

The clamping unit 122 (see Figure 5) now opens and releases the book block back. The transport clamp 130 then moves horizontally and transported the book block in the first cutting position (see also Figure 1, Pos. 1) of a (multi-lanced multi-cutting device.

The two jaws 131, 132 can also be operated according to the following criteria: Each jaw is directly or indirectly in operative connection with a drive operating for the non-positive clamping action. The guided by the drives jaws have adjustable and / or predictively controlled lifting and adhesion profile on any Formatausprägung of the submitted print product, so that the force-locking detection of the printed product made by the jaws is designed with respect to the center line on symmetry or quasi-symmetry. The jaws perform at least during the operative phase for exerting the clamping action on the printed product a mutually tuned uniform, non-uniform or adaptive velocity profile. This operation can be provided for all operatively connected jaws, which are part of this application.

Referring now to Figure 7, the modular cutter 40 includes three cutting stations comprised of a first station 141 at the cutting site 1 (see Figure 1), a second station 142 at the cutting site 2 (see Figure 1) and a third station 143 at the cutting site 3 (see Figure 1) exist. For the respective cutting operation, the book block is pressed by a pressing plate 145 and additionally with a pressing bar 144, such that the book block is clamped or compressed maximized by pressing bars 144 and the already mentioned pressing plates in the area between the conveying clamp and the cutting edge during the cutting operation. is pressed. A knife 150b preferably moves in an oblique section against a per se fixed cutting bar.

The respective pressing bar 144 is therefore directly in operative connection with the respective cutting blade 150a, 150b, 150c, and ensures that that force is exerted on the printed product, which is indispensable for a clean cut. Basically, there are two main variants in the foreground: First, as pos. 250 symbolize in Figure 7, there is a strong coupling between the press bars and cutting blade, ie the pressing beam force has therefore a fixed value, which then usually the speed profile (press speed / Acceleration) is monotonous.

Another variant, as this item 251 symbolizes in FIG. 7, is to decouple the force exerted by the cutting blade and the pressing beam relative to one another, so that the pressing beam 144 then operates autonomously according to the following criteria:

On the other hand, however, it must be taken into consideration that a substantial reduction of the pressing speed and, above all, the acceleration can be achieved by optimizing the pressing stroke, especially in the case of stiff and / or thin printed products. But it is advantageous in this concept that regardless of the production speed, the respective cutting device (s) always work at the maximum speed, which is not limited by the cutting speed, but by the limits determined by the mechanics. It is also essential that an increased cycle time is available at low machine speeds, in particular for the operations of transporting, aligning and pressing, since the cutting process always requires the same amount of time. The remaining two cutting locations are operated by the knives 150a and 150c, which follow substantially the same pressing and cutting philosophy. In the first cutting station 141, the head area of the book block is cut (see also FIG. 1). However, it is not excluded to start the first cutting operation with the foot portion of the book block, but in some configurations this would necessitate an adjustment of the operating location of the staple and possibly the cutter 140 as well as the width of the portions, on the basis of maintaining the spine side clamp A ^R (see Figure 1).

Returning to Figures 1, 2, 3 during the cutting operation in the vertical (Y-plane, see Figure 1) as well as in the horizontal direction (X-plane, see Figure 1) engages a movable, open first gripper 103, wherein in the vertical direction the gripper is directed against the book block spine. After the first cut, the first gripper 103 takes over the book block on the back and the transport clamp 130 opens. This transport clamp then moves to the takeover position for the next book block. The first gripper 103 transports the book block from this first cutting operation (FIG. 1, item 1) vertically upwards (Y-plane) and thereby advances by superimposed horizontal movement into the second cutting position (FIG. 1, item 2).

The moving distance of the first gripper 103 in the vertical direction is controlled by the machine controller depending on the width of the cut book block, and also the moving distance of the gripper can be controlled individually in the horizontal direction relative to the book block, so when a special gripping position is desired. For example, if the format and the sections to be cut in the respective book block an asymmetric or quasi-asymmetric or a one-sided focus-related clamping effect necessary. In the second cutting position (Figure 1, Item 2), the book block is formed by a plurality of pressure bars that form a pressure bar battery (Figure 2, 3, Pos. 200), with which the book blocks between the front and the back are clamped. In Figure 2, the pressure bar battery appears in the closed state, while in Figure 3, the pressure bar battery are shown in the open state.

As can be seen in Figures 8 and 9, close the individual pressure bars 200 ¹ "", starting at the book bridges, one after another, so that the air between the individual sheets can be selectively pressed against the direction of the cutting edge, at the same time a smoothing of the printed product as a body takes place. As can be clearly seen from FIG. 9, only as many pressure bars as there are between the position of the gripper 103 and the respective clamping jaws 103a, 103b and the second cutting station 142 at the second cutting location 2 (see FIG. 1) can be accommodated. The same jaws 104a and 104b (not shown in detail) are associated with the other gripper 104 (see Figure 1). This in turn achieves a large-area pressing of the book block. In the second cutting station 42, the front side of the book block is now cut, this is done in an analogous manner as in the first and the third cutting stations 141, 143 for head resp. Foot side.

After having the next to use pressing strips 200 ^_n the pressure bars battery 200 to the respective book block at the second cutting location 2 (see FIG. 1, item 2) is clamped, as is apparent from Figure 10, the first gripper 103 may release the book block and in its transfer position (Cutting location 1, Figure 1) are moved back for the next book block.

Further, from Fig. 10, there is shown the ultimate force-related retention of the book block A on the occasion of the cutting operation to ensure that the cut can be carried out with high quality by means of the knife 150b shown. Thus, if the pressure bars 200 ^{1 "n used} (see FIGS. 8, 9) have taken over the book block A from the gripper 103, then grip Press bar (item 144), which exercise the immediate pressing force on the book block in the immediate cutting area. In this case, this force must be designed predominantly in relation to the pressing force exerted by the pressure strips, so that the cut carried out by knife 150b has a sharp-cut at right angles

Cutting edge allows. The pressing device consists of a fixed stop 152 as part of a press plate 145 (see also Figure 7) on one side of the book block and from an opposite movable pressing bar 144 on the other side, which is pressed by a pressing pin 151 against the book block.

The stop 52 may also be made movable in a further embodiment to take into account the thickness and / or the thickness consistency of the book block taken from above, in other words, for the purpose that the leading edges of the introduced book block can not burst. This dynamic adaptation of the stop 152 can be done by the already mentioned machine control.

For example, the press stud 151 for the press beam 144 may be driven by a motor, hydraulic, or pneumatic, thus exerting the predetermined pressing force on the book block.

According to the same principle, the other press beams (see FIG. 7, item 144) also function at the other cutting locations 1, 3, which now provide the application of the pressing force in the vertical plane. Again, it is about ensuring a right-angled sharply cut cutting edge.

Once the book block is kept clean by the pressure bars 200-1 ^"n , then the second cutting operation (front cut) can be performed." Upon completion of the cutting operation, a second gripper 104 (see Figure 1) advances to the position above the pressure bar battery and engages the book block in the same way as was the case with the first gripper 103. The position of the second gripper 104, in which he pinches the book block depends on the cut book block height. The controller brings the second gripper 04 in the previously calculated gripping position, so that the correct book block height is created by the third cutting operation (see Figure 1, Pos. 3) on the book block.

After the second cutting operation (front cut) is carried out, the pressure bar battery 200 opens and the second gripper 104 moves the printed product through a vertical (out of the cutting position), then horizontal (feed to the next cutting position) and finally back to the cutting position for the vertical movement third circumcision (foot part) on (see Figures 1, 2).

In the case of vertical movements in the region of at least one cutting position, the loaded gripper in question still performs, as required, a lateral offset movement with respect to a clamping surface of the clamping device.

If the cutting operation is carried out at the third cutting location 3 (see FIG. 1), the rotatable delivery device (four-staple system) 160 according to FIG. 11 and thus also the staple 161 with the book block moves away from the knife orthogonally to the blade movement. The rotatable four-clamp system 160 rotates 90 degrees during each stroke.

In this context, the four-staple system 160 shown in FIG. 11 shows the position of the clamp 161 in the cutting position 162, in which a movable jaw 163 is still open. Another clip acts within the discharge position 164. In this position, the book block A can be removed. The operation of the four-clamp system 160 ensures that the book block A is sustainably pressed between the movable jaw 163 and the fixed jaw 165 during the cutting operation at the third cutting location 3 (see FIGS. 1, 7) and the rotational movement of the four-clamp system. Furthermore, two states of the bracket 161 can be seen within one quadrant, namely a completely closed 166 and completely open 167 intermediate position. clearly. Specifically, one or the other variant can be considered within this quadrant, according to the prevailing space available during the rotation.

As a sampling device may for example be a conveyor belt, which is equipped for the promotion of the book block with movable rollers. Other devices known in the art may also be provided.

FIG. 12 shows the ultimate pressing of the book block by pressing bars 144 during the cutting operation. Such a contact pressure corresponds in effect to that which has been described under FIG. The infeed direction is marked Pos. 170.

FIG. 13 shows the interdependence of the various pressing elements (clamping devices) on the printed product, which, relative to the cutting location 2, is exerted by the various clamping devices 103, 200, 14, wherein at this cutting location the one clamping device 200 consists of a pressure bar battery 200. The clamping forces of the various clamping devices in the diagram must also be understood only qualitatively. The clamping force of the gripper 103, which is provided for the transport 210 of the printed product from one cutting location to the next, is smaller in comparison with the cutting location-related clamping forces 200 and 144 per se, since this is only a force which is only for the secure clamping action of the printed product during transport must be sufficient. At the cutting location 2 then the clamping force of the pressure strip battery belonging to pressing bars 200 ^1_n simultaneously or subsequent quickly, so that the clamping force of the gripper 103 immediately decreases 21 1 (acceptance point) as soon as the final clamping force of the pressure bars is reached on the printed product. The extent to which the clamping force of the gripper decreases to the printed product is set individually and also depends on the weight of the respective printed product. The important for the quality of cutting quality final clamping force on the printed product is then exerted by the already mentioned pressing bar 144, which assumes its position fully parallel to the plane of the cutting blade. As can be seen from the force diagram according to FIG. 13, the pressing bar 144 preferably unfolds the greatest clamping force, which is variably and phase-shifted 212 (engagement plane) relative to the remaining clamping devices, as can be seen from the parallel interruption lines 212a, 212b (phase shift interval). Once the pressing force from the pressing bar 144 is reached, the knife performs the cutting operation 213. Thereafter, the pressing bar 144 remains briefly in the cutting plane 215 until the clamping force of the gripper has built up so far that a secure onward transport 214 of the printed product is guaranteed. Thereafter, the clamping forces of the remaining elements 144, 200 after a certain decrease curve 217 subsequent from, so that the further transport plane 216 is open again with the fully grasped by the gripper 103 printed product. In principle, this dynamic also applies to the gripper 104 belonging to the second support 102 (see FIG. 1) in operative connection with the respective clamping devices.

This figure 13 symbolically further shows that the mutually tuned uniform, non-uniform or adaptive velocity and / or motion profile of both clamping elements of a clamping device can also be provided for a one-sided pressing force exertion of the pressing bar 144 by the power supply for the knife 150b no longer with that for the pressing beam 144 is coupled, but this exerts its pressing force autonomously on the printed product, as this symbolizes the position 251 (see also Figure 7). Accordingly, the press force exertion of the press bar on the printed product can then be provided according to certain criteria. The speed profile of the press bar 144 may be transferred to another mode immediately after the first contact with the print product. This also applies to the development of force on the printed product, which can be made successively monotonous, rising or falling depending on the specification. If, therefore, during the force development of the press beam 144 towards the end of the pressing, a certain amount of flexion is required in order to playfully conserve the possibly slightly thickened back part of the printed products, this can be provided with the activation of a corresponding control profile, after which, for example, the monotonously increasing power development can go into a curve on the principle of a capacitor charging. Accordingly, it is then readily possible to provide an exponential force development, which is used as an intermediate or overarching.

Furthermore, the document EP 1 647 373 A1 is intended to be an integral part of this description, especially when it comes to show how the coordination of the drives for the pressing force supply and knife dynamics is being considered.

FIG. 14 shows the configuration of a flush valve 125 (see also FIG. 3). This consists of a receiving plate 180 which acts from above and which carries brush bodies 181, 182 on the pressure product side, which exert a pressure on the front ends 183 projecting over the printed product A, so that the back of the printed product coincides with the support surface within the insertion wheel 120. Since the turnup ends 84 lie in the same alignment plane on the front side, they can be seen better under the positions 185 and 186 (on the top or bottom side of the printed product A). Both brush body 181 and 182 each consist of two partial brush bodies 181 a, 181 b; 82a, 82b, which are at an angle to each other, in such a way that the respective turnup end is detected in a wedge shape and can be pressed parallel downwards, whereby the turnup ends do not experience a damaging bulge,

FIG. 5 shows the configuration of another flush valve 126 (see also FIG. 3). This consists of a side of the (head or foot side) acting receiving plate 190 which carries printed product side brush body 191, 192, which exert pressure on the head or foot side over the printed product A projecting turnup ends 184, 185, so that the printed product A for the cutting operations are positioned accordingly. The overhanging envelope These are apparent here in relation to the back section 193 of the printed product A. Both brush bodies 191 and 192 each consist of two part brush bodies 191a, 191b; 192a, 192b, which are at an angle to each other, in such a way that the respective end of the envelope of the brush bodies detected in a wedge shape and the entire printed product body can be positioned laterally according to specification, so that the turn ends do not experience any harmful bulge.

FIG. 16 shows a further transport device 300 of the printed products from one cutting location 1 to the next 2 and from this to a third 3. The cutting operations carried out at these cutting locations are the same as described under FIG.

The essential difference with respect to the dynamics according to FIG. 1 here is that at least three supports with respective grippers 101/103 are operationally used along a substantially ellipse-like path 301, this functional circumferential path consisting of a front track 303 and one substantially parallel extending rear track 304, wherein the two tracks merge into each other by a respective lateral curvature 305, 306. The front web serves to guide the successive successive supports 101 in a straight line or quasi-rectilinearly along the cutting locations 1, 2, 3. The number of supports 101 along the route is dependent on the maximum allowable tact, ie, each support takes a leading role in a printed product, and this leads to the underlying three cutting sites 1, 2, 3, without making a transfer to another support. To maximize production, the clock is designed in such a way that the supports follow each other closely and the distance between them depends on the time taken for the individual cutting operations, which usually involves more than three supports. A reduction in the number of supports can be achieved, for example, if they experience an acceleration along the rear track 304 between the last cutting location 3 and the first cutting location 1. Thus, with such a provision, the intermediary cutting site-specific levies and takeovers of the printed product can be circumvented by reciprocating supports (see FIG. 1). On the other hand, in order to keep production high, more peripheral supports 302a-302f usually need to be provided because the supports need time to travel over the rear track 304.

For better understanding, the supports which are in operational use are shaded, while the others are not loaded, ie downstream of the discharge device 160, which are in each case en route to the delivery device 120 for the renewed acceptance of a printed product are shown.

Such a transport variant characterized by an ellipse-like path 301 can be used as a basis for a central trimming of the printed products, ie if the three cutting operations are carried out at a single cutting location, ie if the takeover of the printed product, its supply to the central cutting location, and its subsequent cutting Delivery by one and the same support. By analogy, such a central circumcision could advantageously be arranged within the second cutting location 2. Advantageously, then the in-use supports should not drive back into the Zustefl device 120 via the front track 303, but on the rear track 304, so as not to inhibit the production flow.

It is obvious that, in the case of a central cutting site for trimming all the printed edges of the printed product, provision must be made for the movement of the side knives and the associated press beams to be out of phase with the movement of the front knife and the associated press beam, thus colliding the knives can be prevented. The described three-knife trimmer 100 according to the invention has the following advantages over the known three-knife trimmers:

During cutting, the book block in staples or the pressure bar battery is almost completely pressed. Only in one area of the book spine does the book block have an open space i. This is not critical because the binding holds the book block together in this area sufficiently and support the book block in the cutting area, the pressure bars within the respective cutting station of the cutting devices. The full-surface pressing of the book block leads to a high quality of cut.

The full-surface pressing is achieved in a simple manner. No webs, support elements or support strips need to be adjusted depending on the format. As a result, a high number of cycles and thus a high performance of the three-knife trimmer can be achieved.

Since the book block is transported with the inventive three-knife trimmer hanging to the individual cutting stations 141, 142, 143 (see Figure 7), no support of the sides of the book block is necessary at the transfer points in the transport system. Since the book blocks are not transported horizontally, the book pages do not bend at not complete contact surfaces between the support points, which they can not attach to the transfer points.

The three cutting stations 141, 142, 143 of the cutting device are arranged U-shaped with the open side of the U down against each other. The section of book block to be cut is in all three cutting operations in operative connection with the pressing bars 144 (see Figure 7, and in particular Figure 10) against the inside of the U-shape. As a result, it is possible with a single section disposal facility to successfully "carry out" all three cut-off sections, namely, these sections fall down by gravity without any further aids. A good section disposal, regardless of whether it is book blocks or brochures, is of great importance, because in the industrial production of individual books, the different formats are very often produced only on the three-knife trimmer. The book blocks are fed to the three-knife trimmer in a size adapted to the largest final format, which leads to large cutting sections in the case of small end formats.

For three-knife trimmers with cutting cassettes and press dies, it is customary to align the book block with two right-angled stops in the corners of spines to the top and spine to the bottom, as well as from the front of the book block. When making format-variable books, brochures, etc., envelopes of the same size are usually used for a particular size range. If the thickness of the book block now varies and the books are bound with binders having fixed edge processing, the envelope on the top of the book is not the same size as on the last page of the book.

If the book block height varies, depending on the envelope, the book is more or less in front of the book. Typically, the book blocks are made with a solid overhang of the envelope on one side and a variable overhang on the other side.

For such products, the alignment of the book block is inappropriate, as in the three-cutter with cutting cassettes and press dies.

In the three-knife trimmer according to the invention, the uncut book block or the uncut booklets are aligned at the foot or head edge and the processed back edge. Thus, the variable projections of the envelope in the book block height and the book width play no role. For each book block to be cut or for each booklet to be cut, the three-cutter control product data must be known, from which the necessary movements of the transport organs can be expected, so that at the end a cut book is produced, which has the desired format dimensions.

These data can be transmitted to the controller in a variety of ways. Below are some examples of options listed. Each book block or booklet is equipped with an identification feature. A feature reader at the entrance of the three-knife trimmer reads the identification feature (for example: one-dimensional or two-dimensional barcode, RFID chip, character, image, etc.) and transmits the information from the feature with the machine cycle allocation to the controller. The feature may include the necessary information mapping the cut print product dimensions, or the missing information may be supplemented from a database.

In another system, the book blocks are clocked fed to the three-knife trimmer. With each cycle, the three-cutter control is supplied with the information necessary to cut the book block to the correct dimension. Again, data supplied with the book block can be supplemented with data from a database.

Another possibility is to make the data known to the three-knife trimmer with an order of the book blocks before the book blocks are fed. The three-knife trimmer processes the next record in the given order with each book block being fed. The feeding of the book blocks must be done in the right order. For control, a feature reader can be used in addition, which controls the order.

Claims

claims

1. A device for performing cutting operations on at least one open edge of the format of at least one printed product, wherein the device in operative connection with a print product related delivery device for the first cutting operation and with one after the last

Cutting operation operable pressure product related delivery device, wherein each edge-related cutting operation with at least one cutting device is feasible, characterized in that the printed product (A) from a first cutting location (1), in which the

Cutting operation for a first format edge of the printed product takes place, to a second cutting location (2), in which the cutting operation takes place for a second form edge, that the printed product after the cutting operation performed at the second cutting location to a third cutting location (3), in which the cutting operation for a third format edge takes place, is transferable, and that the transfer of the printed product along a guide path from one cutting location to the next with at least one transport unit (101, 102, ....) is feasible, and that the transport unit has at least one means with which the printed product detected on the back side, and is conveyed from one cutting location to the next hanging.

2. Device according to claim 1, characterized in that the printed product to be cut consists of at least one contiguous book block, individual brochures or a number of stacked brochures.

3. A device according to claim 1, characterized in that the printed products before and / or after the cutting operations have the same or variable shape. matabmessungen have the same or different thickness dimensions.

4. Device according to claim 1, characterized in that the first edge to be trimmed at the first cutting location (1) the head part, that the second edge to be trimmed at the second cutting location (2) the front end, and that the third edge to be trimmed at the third cutting location (3) the foot portion of the printed product, or that the first edge to be trimmed at the first cutting location (1) is the foot portion, the second edge to be trimmed at the second cutting location (2) the front end, and the third trimmed edge at the third Cutting location (3) concerns the head of the print product.

5. Device according to claim 1, characterized in that the Zustel (device for the positional alignment of a book block (A) formed printed product in the form of a multipart Einschubrades (120), which is operable according to the following criteria: a) During a first 90th Rotation of the insertion wheel (120) performs a relative to the book block (A) folding rake-like guide (121) from a pivotal movement, such that the book block (A) after the 90 ° rotation on the back (A ^R ), whereby he is secured against fanning out and / or falling over; b) The rake-type guide (121) is coupled to a clamping unit (122) through which the book block (A) lying on its back is temporarily clamped, wherein this clamping unit (122) is kinematically operable such that the rake-like guide (121) in a book block thickness-dependent position can be transferred; c) Thereafter, the clamping unit (122) opens a little again, so that the book block back (A ^R ), following the gravity, according to a stop surface (123) within the insertion wheel (120) aligns; d) Thereafter, the clamping unit (122) closes again, whereupon the book block (A) has a defined position; e) The Einschubrad (120) then rotates by two bars by 90 ° per clock on, whereby the book block (A) over the cutting locations (1, 2, 3) can be converted into a now hanging position; f) During this last-mentioned rotational movement, the first rake-like guide (121) and a second guide (124) operatively connected thereto are pivoted away from the book block, wherein the book block (A) in the region of at least a part of its back (A ^R ) by the clamping unit ( 122), that the portion of the book block (A) released by the guides (121, 124) is suspended vertically downwards solely by gravity.

6. Device according to claim 1, characterized in that the Zustellvor- direction for a printed product, which consists of at least one booklet, in the form of a multipart Einschubrades (120), which is operable according to the following criteria: a) During a first 90 ° Rotation of Einschubrades (120) carries out a relation to the brochure foldable ruler-like guide (121) from a pivotal movement, such that the booklet after the 90 ° rotation on the back (A ^R ) is, so they against fanning and / or falling over is secured; b) The rake-type guide (121) is coupled to a clamping unit (122), by means of which the booklet is temporarily clamped in a position lying on its back, wherein this clamping unit (122) is kinematically operable such that the rake-like guide (121) in a book block thickness-dependent position can be transferred; c) Thereafter, the clamping unit (122) opens a little again, so that the booklet back, following the gravity, according to a stop surface (123) within the insertion wheel (120) aligns; d) Thereafter, the clamping unit (122) closes again, whereupon the booklet has a defined position; e) The insertion wheel (120) rotates by two clocks by 90 ° per clock on, whereby the booklet opposite the cutting locations (1, 2, 3) in a now hanging position can be transferred; f) During this rotational movement, the first rake-type guide (121) and a second guide (124) operatively connected thereto are pivoted away from the booklet, the booklet being guided in the area of at least part of its back (A ^R ) by the gill unit (122). is held that the released by the guides (121, 24) lot of booklet depends solely by gravity vertically downwards.

7. Device according to one of claims 5, 6, characterized in that with open clamping unit (122) additional means are present, which are drivable from above (125) and / or from the side (126), with which directly or indirectly on book blocks or brochures a short-term pressing force is exercised, by which a securing of the end position of book blocks or brochures against the stop surface (123) or an otherwise predetermined position at least in the horizontal direction is achieved bar.

Device according to one or more of Claims 1, 5, 6, characterized in that the feed device (120) is in operative operative connection with a movable clamping device (130) equipped with clamping plates (131, 132) in the region of the first cutting location (1), which takes over the printed product from the feed device (120), whereupon the printed product can be fed to the first cutting operation.

Device according to claim 1, characterized in that the transport unit consists essentially at least of a support (101) with at least one print product-related gripper (103) that the gripper detects the printed product to be trimmed spine side (A ^R ) that the gripper relative to the cutting locations (1, 2, 3) are based on the following control-assisted translational movements along a guide path: a) Takeover of the printed product by the gripper belonging to the support after completion of the first cutting operation on the first

Cutting location (1); b) transfer of this printed product by the same support / gripper to the second cutting location (2), and after the cutting operation at the second cutting place is a c) transfer of the same printed product by the same support / gripper to the third cutting location (3) for the implementation the third cutting operation, and thereafter a d) return of the same support / gripper to the home position at the first cutting location for a new takeover of a beleaguered one Print product can be introduced after the first cutting operation is performed at this first cutting location.

10. Device according to claim 1, characterized in that the transport unit consists essentially of two print product-related supports (101, 102) each with a gripper (103, 104), that the grippers capture the printed product to be trimmed on the backside (A ^R ), that the two supports / grippers are operatively connected to each other, and that the supports / grippers are operable in relation to the cutting locations (1, 2, 3) by the following control-assisted translational movements along a guide path: a) the first gripper (103) of the first support (101) takes over the printed product after the first cutting operation at the first cutting location (1); b) The first support then travels with this printed product to the second cutting location (2), positions there the printed product for the execution of the second cutting operation, and then returns empty to the first cutting location (1), where the re-takeover of a re-used printed product takes place, which is already cut at this cutting location (1); c) Meanwhile, the second support (102) / gripper (104) picks up the printed product immediately after the cutting operation at the second cutting location (2) and transfers it to the third cutting location (3) where the third cutting operation takes place; d) Thereafter, the second support (102) / G mature (104) returns empty to the second cutting location (2), where a replicated printed product is again trimmed, whereupon the second support (02) / gripper (104) with the The printed product moves back to the third cutting location (3), in which the third cutting operation takes place.

11. The device according to claim 1, characterized in that the transport unit consists of at least two, three supports (101/103), which are guided along a closed guide path (301), that each support in the region of the cutting locations (1, 2 , 3) each individually loaded with at least one printed product for the respective cutting operation, that each support after leaving the third cutting location (3) unloaded over the remaining course of the closed guide path to the first cutting location (1) traceable to there before or after the first cutting operation takes over a replicated printed product, that the support with the accepted print product can be guided successively after a certain cycle to the other cutting locations (2, 3) for carrying out the pending cutting operation.

12. Device according to claim 1 1, characterized in that the closed guide track has substantially the shape of an ellipse, quasi-ellipse, or the shape of a round or quasi-round course.

13. A device according to claim 11, characterized in that the number along the guide track circulating supports in dependence on the cycle of the cutting operations and / or in dependence on the selected return speed of the supports between the third (3) and first cutting location (1).

14. Device according to one of claims 1, 9, 10, 11, characterized in that all cutting operations are carried out at a central cutting location, and that the movements of side knives and associated pressing elements with respect to the movement of front knives and dazugehö- Rigid pressing elements to prevent a collision between the said elements out of phase.

15. Device according to one of claims 1, 9, 10, 11, characterized in that the grippers (103, 104) end provided with acting on the printed product jaws (103a, 103b, 104a, 104b) are equipped with at least one with a gripper loaded with a printed product in the region of at least one cutting location (1, 2, 3) before and / or after the cutting operation at least one specific lateral offset movement relative to a pressing surface of at least one locally arranged clamping and / or pressing device (103, 104, 130, 160/161, 200, 144) is executable.

16. Device according to one or more of claims 1, 9, 10, 11, characterized in that with the jaws of the respective gripper (103, 104) the respective printed product symmetrical, quasi-symmetric, asymmetric or maximized at the center of gravity and / or can be detected depending on the cut off sections of the edges.

17. Device according to one or more of claims 1, 9-16, characterized in that with at least one gripper (103, 104) at least one cutting location (1, 2, 3) before and / or after the respective cutting operation, a positioning further Movement in at least one plane relative to a stationary pressing surface of a clamping device is feasible.

18. Device according to claim 1, characterized in that the discharge device (160) at the third cutting location (3) is operable, and is operable according to the following criteria: a) the discharge device (160) is operable by a multi-part operating wheel; b) The discharge device has a clamping device (161), which consists of at least one first jaw (163) and at least one second jaw (165), with which jaws a clamping action on the printed product (A) on the occasion of the cutting process can be exercised; c) After the cutting operation, the multi-part wheel performs a partial rotation, through which the printed product can be transferred to a discharge position.

19. Device according to claim 1, characterized in that the one

Cutting device (150 ac) at each cutting location (1, 2, 3) in operative connection with a respective stationary or quasi-stationary clamping and / or pressing device (130, 161, 200, 144), with which at least one pressing force on the it is exercisable that the clamping device has single or multiple acting controllable pressing surfaces belonging to at least one clamping jaw, that the clamping device is matched to the format size of the printed product, or is adjustable in the course of operation by simultaneous adjustments to the respective format sizes of the printed product.

20. Device according to one or more of claims 1-19, characterized in that at each cutting location (1, 2, 3) force-exerting and operatively connected to each other clamping and / or pressing devices (103, 104, 30, 160/161, 200, 144) are provided such that the clamping force of the gripper (103, 104) intended for transporting the printed product from one cutting location (1, 2, 3) to the next one is smaller than the first force-exerting clamping devices (130, 160/161, 200) in that these first force-applying clamping devices (130, 160/161, 200) exert on the printed product a clamping force which is smaller than a second cutting-site-related clamping device (144).

21. A device according to claim 20, characterized in that the cutting location-related clamping device (144) has the shape of a press bar, which presses directly against the printed product, or is matched by a mechanical, pneumatic, hydraulic counterforce development press-pressure-specific.

22. Device according to one of claims 19-21, characterized in that on the pressing device belonging to the pressing bar (144) producible pressing force for the cut-conforming contact pressure of the printed product directly o- the quasi-directly with a drive in operative connection, which is also the cause for the provision of the cutting force within the cutting locations (1, 2, 3) is designed.

23. Device according to one of claims 19-21, characterized in that on the pressing device belonging to the pressing bar (144) producible pressing force for the cut-conforming contact pressure of the printed product is provided by an autonomous drive of the drive for the provision of cutting force within the cutting locations (1, 2, 3) is detached.

24. Device according to one of claims 19-23, characterized in that the clamping jaws are equipped with at least one clamping device, which are movable according to the following criteria: a) Each jaw is directly or indirectly in operative connection with an operating for the non-positive clamping action drive wherein the jaws guided by the drives have adjustable and / or predictively controlled lifting and traction profiles, which are aligned with any format of the present printed product; b) That the forceful movement pro performed by the jaws! detect the printed product symmetrically or quasi-symmetrically with respect to its thickness-related centerline; c) That with the jaws at least during the operative phase, a clamping force on the printed product by a mutually tuned uniform, non-uniform or adaptive speed and / or movement professional! exercisable.

25. Device according to one of claims 19-23, characterized in that formed as a pressing bar (144) pressing device at least during the operative phase, a cut-conforming contact pressure on the printed product is exercisable, which force preferably on tuned uniform, non-uniform, quasi-monotonous , rising, sloping, adaptive speed and / or motion profile is designed.

26. Device according to claim 1, characterized in that at each

Cutting position (1, 2, 3) before, during and after the cutting operation, the following pressing forces on the printed product are effective: a) A pressing force on the printed product by the gripper (103, 104) belonging jaws (103a, 103b, 104a, 04b ) exercisable, which pressing force is designed for the transport of the printed product from one cutting location to the next; b) A further pressing force on the printed product can be exerted by a first clamping device (130, 160/161, 200) acting at each cutting location, which pressing force is stationary on the printed product in the region of the respective cutting location; c) A further pressing force on the printed product can be exerted by a second pressing device (144) designed for each cutting location, which pressing force is directly effective in the region of the respective cutting location.

27. A device according to claim 26, characterized in that a first clamping device (130) at the first cutting location (1) is operative, that a further first clamping device (200) at the second cutting location (2) is effective, that a further first clamping device (160 / 161) at the third cutting location (3) is effective, and that at each cutting location (1, 2, 3) in each case additionally a second clamping device (144) is operative.

28. The device according to claim 27, characterized in that a first clamping device (200), which at least at the second cutting location (2) is operable from individual vertically or quasi-vertically downstream pressure bars (200 ¹ ""), that the pressure bars on the one side of the printed product are firmly positioned, while with the pressure bars on the other side of the printed product a non-positive pressing movement is executable.

29. Device according to claim 27, characterized in that a first clamping device (200), which is operable at least at the second cutting location (2), consists of individual vertically or quasi-vertically downstream pressure bars (200 ^{1 "n} ) that with the pressure bars On both sides of the printed product directly or indirectly to the printed product uniform or quasi-uniform directed non-positive Anpressbewegungen are executable.

30. A device according to claim 27, characterized in that a first clamping device (200), which is operable at least at the second cutting location (2), from individual vertical or quasi-vertically downstream press afford (200 ¹ "") that with the pressure bars arranged on both sides of the printed product non-positive pressing movements can be exercised whose movements are designed for symmetry or quasi-symmetry with respect to the thick center line of the printed product.

31. The device according to one or more of claims 27-30, characterized in that at a Subsequent press-on movement of the pressure bars (200 ^{1 "} ") on the printed product whose pressing action begins with the first pressure bar in the back of the printed product to then continuously continue through the use of the remaining pressure strips to almost in the plane of the edge to be cut.

32. Device according to claim 31, characterized in that starting from the back of the printed product starting from the back of the printed product up to the edge to be cut, the air trapped between the signatures of the printed product can be continuously pressed out by the subsequential control of the pressure bars.

33. Device according to one of claims 1-32, characterized in that the cutting operation with respect to the individual format edges of the printed product by an individually operating cutting operation at the respective cutting location (1, 2, 3) is feasible.

34. Device according to claim 33, characterized in that at least one cutting operation is operable with a single-acting cutting blade.

35. Procedure for operating a facility for the implementation of

Cutting operations on at least one open form edge of at least one printed product, the device being operatively associated with a print product related delivery device for the first cutting operation and a print product operating after the last cutting operation; wherein each edge-related cutting operation is performed with at least one cutting device, characterized in that the printed product (A) from a first cutting location (1), in which the cutting operation for a first edge of the printed product is carried out to a second cutting location ( 2), in which the cutting operation for a second form edge takes place, that the print product is transferred to a third cutting location (3) after the cutting operation has been performed at the second cutting location, in which the cutting operation for a third form edge takes place, and that the transfer of the Print product along a guide path from one cutting location to the next with at least one transport unit (101, 102, ....) is accomplished, and that the transport unit has at least one means with which the printed product is detected on the back side, which from a cutting location z is transported to the next hanging.

A method according to claim 35, characterized in that the printed product to be trimmed consists of at least one contiguous book block, individual leaflets or a number of stacked leaflets.

37. The method according to claim 35, characterized in that the printed products before and / or after the cutting operations have the same or variable format dimensions with the same or different thickness dimensions.

38. The method according to claim 35, characterized in that the first edge to be trimmed at the first cutting location (1) is the head part, that the second edge to be trimmed at the second cutting location (2) is the front part, and that the third edge to be trimmed is at the third cutting location (3) the footprint of the printed product, or that the first edge to be trimmed at the first cutting location (1) is the foot portion, that the second trimmed edge is te at the second cutting location (2) the front end, and that the third edge to be trimmed at the third cutting location (3) concerns the head portion of the printed product.

A method according to claim 35, characterized in that the adjusting device for the positional alignment of a book block (A) formed print product in the form of a multipart Einschubrades (120), which is operated according to the following criteria: a) During a first 90 ° rotation of the insertion wheel (120) performs a relative to the book block (A) hinged rake-like guide (121) from a pivotal movement, such that the book block (A) after the 90 ° rotation on the back (A ^R ), which he against a fanning and / or falling over is secured; b) The rake-type guide (121) is coupled to a clamping unit (122), by means of which the book block (A) lying on its back is temporarily clamped, this clamping unit (122) being kinematically operated such that the rake-like guide (121) is transferred to a book block thickness-dependent position; c) Thereafter, the clamping unit (122) opens a little again, so that the book block back (A ^R ), following gravity, after a stop surface (123) within the Einschubrades (120) is aligned; d) Thereafter, the clamping unit (122) closes again, whereupon the book block (A) assumes a defined position; e) The Einschubrad (120) then rotates by two bars by 90 ° per clock on, whereby the book block (A) over the cutting locations (1, 2, 3) is transferred to a now hanging position; f) During this latter rotational movement, the first rake-type guide (121) and a second guide (124) operatively connected are pivoted away from the book block, the book block (A) being moved in the region of at least a portion of its ridge (A ^R ) by the clamping unit (22 ) held by the guides (121, 124) released portion of the book block (A) depends solely by gravity vertically downwards.

A method according to claim 35, characterized in that the Zustellvor- direction for a printed product, which consists of at least one booklet, the shape of a multipart Einschubrades (120) which is operated according to the following criteria: a) During a first 90 ° rotation of Insertion wheel (120) executes a hinged relative to the booklet-like guide (121) from a pivotal movement, such that the booklet after 90 ° rotation on the back (A ^R ) is, so it is secured against fanning and / or falling over ; b) The rake-like guide (121) is coupled to a clamping unit (122), by which the booklet is clamped in a lying on the back position short term, this clamping unit is kinematically operated so that the rake-like guide (121) in a buchblockdickenabhängige Position is transferred; c) Thereafter, the clamping unit (122) opens a little again, so that the booklet back, following gravity, after a stop surface (123) within the insertion wheel (120) is aligned; d) Thereafter, the clamping unit (122) closes again, whereupon the booklet has a defined position; e) The insertion wheel (120) continues to rotate on it by two cycles by 90 ° per cycle, whereby the booklet is compared to the cutting locations (1, 2, 3) transferred to a now hanging position; f) During this rotational movement, the first rake-type guide (121) and a second guide (124) operatively connected thereto are pivoted away from the booklet, wherein the booklet is held in the region of at least part of its back (A ^R ) by the clamping unit (122). held that by the guides (121, 124) released lot of booklet depends solely by gravity vertically downwards.

41. The method according to any one of claims 39, 40, characterized in that with open clamping unit (122) engage additional means which from the top (125) and / or from the side (126) are driven, with which directly or indirectly Book block or booklet a short-term pressing force is applied, by which force securing the end position of book blocks or brochures against the stop surface (123) or otherwise predetermined position is achieved at least in the horizontal direction.

42. The method according to one or more of claims 35, 39, 40, characterized in that the feed device (120) in the region of the first cutting location (1) in operative operative connection with a movable with clamping plates (131, 132) equipped clamping device (130) is, which takes over the printed product from the feed device (120), and this printed product of the first cutting operation at the first cutting location (1) is supplied.

43. The method according to claim 35, characterized in that the transport unit consists essentially of at least one support (101) with at least a print product-related gripper (03) is that the gripper detects the printed product to be trimmed spine side (A ^R ) that the gripper over the cutting locations (1, 2, 3) are based on the following control-assisted translational movements along the guide route: a) takeover of the printed product by the support belonging to the gripper after completion of the first cutting operation on the first

Cutting location (1); b) Transfer of this printed product by the same support / gripper to the second cutting location (2), and after the cutting operation at the second cutting location c) transfer of the same printed product by the same support / gripper to the third cutting location (3) for the implementation the third cutting operation is carried out, and thereafter a d) retraction of the same support / gripper is initiated to the starting position at the first cutting location for a new takeover of a decanted printed product, after the first cutting operation has been carried out at the first cutting location.

A method according to claim 35, characterized in that the transport unit consists essentially of two print product-related supports (101, 102) each with a gripper (103, 104), that the grippers detect the printed product to be trimmed on the backside (A ^R ) that the two Supports / grippers are in operative operative connection with each other, and that the supports / grippers are operated with respect to the cutting locations (1, 2, 3) by the following control-supported translational movements along a guide path: a) The first gripper (103) of the first support (101) takes over the printed product after the first cutting operation at the first cutting location (1); b) The first support then moves with this printed product to the second cutting location (2), positioned there the printed product for performing the second cutting operation and then goes back empty to the first cutting location (1), where the re-take a brought and on this Cutting location (1) already cropped printed product takes place; c) Meanwhile, the second support (102) / gripper (104) takes the printed product immediately after the cutting operation at the second cutting location (2) and transfers it to the third cutting location (3) where the third cutting operation is performed; d) Thereafter, the second support (102) / gripper (104) returns empty to the second cut location (2) where a replenished print product is again trimmed, whereupon the second support (102) / gripper (104) re-closes with this print product the third cutting location (3) drives, in which the third cutting operation is performed.

A method according to claim 35, characterized in that the transport unit consists of at least two, three supports (101/103), which are guided along a self-contained guide path (301), that each support in the region of the cutting locations (1, 2, 3 ) is loaded individually with at least one printed product for the respective cutting operation, that each support after leaving the third cutting location (3) unblurred on the remaining course of the closed guide path to the first cutting location (1) moves back to there before or after the first

Cutting operation to take over a nachgebrachtes print product that the supports in the area of the first cutting site (1) acquired Transport printed products in succession after a certain cycle to the other cutting locations (2, 3) to carry out the upcoming cutting operation.

46. The method according to claim 45, characterized in that the closed guide path substantially describes the shape of an ellipse or quasi-ellipse, or the shape of a round or quasi-round course.

47. The method according to claim 45, characterized in that the number along the guide path of rotating supports in dependence on the cycle of the cutting operations and / or in dependence on the selected return speed of the supports between the third (3) and first cutting location (1).

48. The method according to any of claims 35, 43, 44, 45, characterized in that all cutting operations are performed at a central cutting location, and that the movements of side knives and associated pressing elements against the movement of front knives and associated pressing elements to prevent a collision out of phase between said elements.

49. Method according to claim 35, 43, 44, 45, characterized in that the grippers (103, 104) are equipped on the end with clamping jaws (103a, 103b, 104a, 104b) acting on the printed product, that with at least one a gripper loaded with a printed product in the region of at least one cutting location (1, 2, 3) before and / or after the cutting operation at least one specific lateral offset movement relative to a pressing surface of at least one locally arranged clamping and / or pressing device (103, 104, 130, 160/161, 200, 144).

50. The method according to one or more of claims 35, 43, 44, 45, characterized in that with the clamping jaws of the respective gripper (103, 104) the respectively accepted printed product symmetrical, quasi-symmetrical, asymmetric or maximized at the center of gravity and / or in Depending on the cut off section lengths of the edges is detected.

51. The method according to one or more of claims 35, 43-50, characterized in that with at least one gripper (103, 04) at least one cutting location (1, 2, 3) before and / or after the respective cutting operation, a positioning further Movement is performed in at least one plane relative to a stationary pressing surface of a clamping device.

52. The method according to claim 35, characterized in that the discharge device (160) acts on the third cutting location (3) and is operated according to the following criteria: a) the discharge device (160) is operated by a multi-part wheel; b) the delivery device comprises a clamping device (161), which consists of at least a first jaw (163) and a second jaw (165), with which jaws a clamping action is exerted on the printed product (A) on the occasion of the cutting process; c) After the cutting operation, the multi-part wheel performs a partial rotation, by which the printed product is transferred to a discharge position.

53. The method according to claim 35, characterized in that the one

Cutting device (150 ac) at each cutting location (1, 2, 3) in operative connection each with a stationary or quasi-stationary clamping and / or pressing device (130, 161, 200, 144) is, with which at least one pressing force is exerted on the printed product to be cut, that the clamping device single or multiple acting controllable to at least one jaw belonging pressing surfaces, that the clamping device is adapted to the format size of the printed product, or is adjusted in the course of operation by simultaneous adjustments to the respective format sizes of the printed product.

54. Method according to claim 35, characterized in that clamping and / or pressing devices (103, 104, 130, 160/161, FIG. 200, 144) that the clamping force of the gripper (103, 104) intended for transporting the printed product from one cutting location (1, 2, 3) to the next one is smaller than the first force-exerting clamping devices (130, 160/161, 200) in that these first force-applying clamping devices (130, 160/161, 200) exert on the printed product a clamping force which is smaller than a second cutting-site-related clamping device (144).

55. The method according to claim 54, characterized in that the cutting-site-related clamping device (144) has the shape of a Pressbaikens which presses directly against the printed product, or by a mechanical, pneumatic, hydraulic reaction force unfolding pressd jerk-specific tuned.

56. The method according to any one of claims 53-55, characterized in that on the pressing device belonging to the pressing bar (144) producible pressing force for the cut-conforming contact pressure of the printed product directly or quasi-directly in operative connection with a drive, which also ursäch - lend for the provision of the cutting force within the cutting locations (1, 2, 3) is designed.

57. The method according to any one of claims 53-55, characterized in that on the pressing device belonging to the press bar (144) producible pressing force for the cut-conforming contact pressure of the printed product is provided by an autonomous drive, the drive from the drive for the cutting force detached within the cutting locations (1, 2, 3).

58. The method according to any one of claims 53-57, characterized in that the jaws have at least one clamping device, which are moved to each other according to the following criteria: a) Each jaw is directly or indirectly in operative connection with an operating for the non-positive clamping effect drive, wherein the jaws guided by the drives have adjustable and / or predictively controlled lifting and traction profiles, which are aligned with any desired format of the present printed product; b) The non-positive motion profile executed by the jaws capture the printed product with respect to its thickness-related centerline symmetrical or quasi-symmetrical; c) That with the jaws at least during the operative phase, a clamping force is exerted on the printed product by a mutually tuned uniform, non-uniform or adaptive speed and / or motion profile.

59. The method according to any one of claims 53-57, characterized in that formed as a pressing bar (144) pressing device at least during the operative phase, a cut-conforming contact force is exerted on the printed product, which force is preferably designed for coordinated uniform, non-uniform, quasi-monotonous, rising, falling, adaptive speed and / or movement profile.

60. The method according to claim 35, characterized in that at each

Cutting position (1, 2, 3) before, during and after the cutting operation, the following P forces on the printed product act: a) A pressing force on the printed product by the gripper (103, 104) belonging jaws (103a, 103b, 104a, 104b ) is applied, which pressing force is designed for the transport of the printed product from one cutting location to the next; b) A further pressing force on the printed product is exerted by a first clamping device (130, 160/161, 200) acting at each cutting location, which pressing force acts stationary on the printed product in the region of the respective cutting location; c) A further pressing force on the printed product is exerted by a second pressure-exerted clamping device (144) acting at each cutting location, which pressing force acts directly in the region of the respective cutting location.

61. The method according to claim 60, characterized in that a first

Clamping device (30) acts on the first cutting location (1), that a further first clamping device (200) acts on the second cutting location (2), that a further first clamping device (160/161) acts on the third cutting location (3), and that on each Cutting location (1, 2, 3) each additionally the second clamping device (44) acts.

62. The method according to claim 61, characterized in that a first clamping device (200), which is operated at least at the second cutting location (2), consists of individual vertical or quasi-vertical downstream pressure bars (200 ^1'n ), that the pressure bars on the one side of the printed product are firmly positioned, while with the pressure bars on the other side of the printed product a non-positive pressing movement is exerted.

63. The method according to claim 61, characterized in that a first

Clamping device (200), which is operated at least at the second cutting location (2), from individual vertical or quasi-vertika! Downstream pressure strips (200 ^{1 ~ n} ) is that with the pressure bars on both sides of the printed product directly or indirectly on the printed product uniform or quasi-uniform directed non-positive pressing movement is exercised.

64. The method according to claim 61, characterized in that a first

Clamping device (200), which is operated at least at the second cutting location (2) consists of individual vertically or quasi-vertically downstream pressure strips (200 " ⁿ ) that with the both sides of the printed product pressure bars arranged frictional Anpressbewegungen be exercised whose movements to symmetry or quasi-symmetry with respect to the center line of the printed product.

65. The method according to one or more of claims 61-64, characterized in that at a Subsequent pressing movement of the pressure bars (200 ^{1 -n} ) on the printed product whose pressing action begins with the first pressure bar in the back of the printed product to then continuously continue through the use of the remaining pressure strips to almost in the plane of the edge to be cut.

66. The method according to claim 65, characterized in that, starting from the back of the printed product up to the edge to be cut, the air trapped between the signatures of the printed product is continuously pressed out by the subsequential control of the pressure bars.

67. The method according to any one of claims 35-66, characterized in that the cutting operation with respect to the individual format edges of the printed product by an individually operating cutting operation at the respective cutting location (1, 2, 3) are performed.

68. The method according to claim 67, characterized in that at least one cutting operation is operated with a single-acting cutting blade.