EP2858798A2

EP2858798A2 - Device and method for breaking off and separating finished products

Info

Publication number: EP2858798A2
Application number: EP14728095.2A
Authority: EP
Inventors: Johannes HELBIG; Steffen Pieper
Original assignee: KAMA GmbH
Current assignee: KAMA GmbH
Priority date: 2013-05-03
Filing date: 2014-05-05
Publication date: 2015-04-15
Anticipated expiration: 2034-05-05
Also published as: CN104640679A; JP5893227B2; WO2014177713A3; ES2620659T3; BR112015002010B1; EP2858798B1; US20150239141A1; JP2015531711A; CN104640679B; WO2014177713A2; DE102013208189A1; BR112015002010A2

Abstract

The invention relates to a device and a method, in particular a device and a method suitable for a sheet punching and embossing machine, for separating finished products and scrap material of a punched sheet while the sheet is moved in a transport direction, said finished products and scrap material adjoining one another at punching lines. The aim of the invention is to prevent the disadvantages known from the prior art, to improve the economical use of material, and to separate scrap material and finished products from such sheets, said finished products being undercut in the transport direction. This is achieved by a device with break-off means which can be moved intermittently away from the second plane and towards the second plane between a break-off position and a rest position. The invention further relates to a method which is characterized in that the application of force onto the scrap material ends before the trace of the applied force crosses an unevenly arranged punching line, and the application of force is resumed after the trace of the applied force has crossed an evenly arranged punching line.

Description

Device and method for breaking and pay dividing

The invention relates to an apparatus and a method for separating adjoining benefits and waste of a punched sheet while the sheet is being moved in a transport direction, in particular for a sheet punching and embossing machine.

As punching the cutting is referred to as closed geometric blank forms, which can be arbitrarily shaped. The punching takes place against a punch pad or against a stamp, in addition to the actual punching but also creasing or embossing can be introduced into the benefit.

Packaging materials, made of paper, cardboard, cardboard, corrugated board are mainly punched in sheet format, whereby due to the complex process sheets are individually punched.

In known punching machines, which are used both as rotary punching machines, i. can be performed with a cylindrical punching tool, as well as flat bed stamping machines with a flat punch, this punching machine, for example, fed to a pallet stacked sheets. In the machine, the sheets are first aligned in an alignment and taken over by a gripper carriage, which the bow to

Punching tool further transported in the punching device. Following the punching and other processing steps, the sheets are transported by the gripper to a device for breaking the benefit from the sheet and the subsequent Nutzentrennen. When breaking out the waste is removed by breakout. When Nutzentrennen is the Benefit separated from the waste.

Devices are known for breaking and Nutzentrennen in which the arc in the device between a

Upper tool and a lower tool is stopped, which are each occupied with Ausbrechstiften. The

congruently arranged break-out pins grasp the waste and push it through a break-out board, causing the

Break points between benefits and trash. The

Setting up the stripping tool of the device must be done manually and individually for each sheet. The number of stripping pins can easily reach 500 pieces or more, whereby the time for setting up is enormous and the productivity of the sheet punching and embossing machine is impaired. As a further development DE 10 2007 029 408 AI describes a universal tool for sheet punching and embossing machines, whereby the set-up times can be shortened. The

Universal tool, which is suitable both for breaking and for Nutzentrennen, has this one

Assembly plate and a worktop, which are each provided with mutually aligned holes. Pins are plugged into these holes. The plates are separately height adjustable and each have one

Locking mechanism for clamping the pins. The universal tools can be a stripping board or a

Be assigned Nutzentrenngitter, which are unmoved and adapted in their design to the distribution of the benefits of each sheet. In dependency of

Design of the stripping or the Nutzentrenngitters the pins can be clamped in the worktop.

As a result, the set-up time can be shortened, but the break-out board and the Nutzentrenngitter still be adapted to the respective punched sheet, which in turn occur long setup times. Another tool-free apparatus and method for breaking and blanking is proposed, for example, in US 6,467,382 B2. The benefit is separated from the waste during the movement of the sheet and the benefit is separated from the waste. The punched sheet is transported to the device in a transport plane and arranged in pairs one above the other

Feed rollers guided. The front edge of the transported sheet is recognized and by a movable roller, which has a width across the entire sheet width across

Transport direction, the leading edge is detected and pressed down. When pressing down, the

Pressed leading edge of the sheet from the movable roller to the lower of the paired feed rollers, whereby waste can be pulled down, while the benefit in the transport plane of also in pairs one above the other

arranged take-off rollers is transported further. The movable roller is completely under the

Transport level, otherwise the benefit could not be transported further. The disadvantage here is primarily the fact that the sheet in its leading edge region must have a disproportionately wide strip of waste in the transport direction, otherwise at a typical transport speeds of two sheets per second not enough time would be the movable

Roller to move down without it already benefits against the roller. This affects the material economy.

There are also devices for breaking and

Nutzentrennen known in which rolls whose width is transverse to the transport direction is substantially smaller than that

Sheet width, are arranged so that they are during the

Movement of the bow continuously litter down

distracted. Since the rollers are rigidly arranged in the design of the distribution of benefits on the bow on it be taken into account that on the sheet in the area of the rollers always a continuous direction in the transport direction web waste is taken into account, otherwise benefits through the roles is deflected down, which also in one

unsatisfactory material economy results. Sheets on which benefits in the transport direction undercut can not be broken on such a device.

An object of the invention is therefore a

To provide apparatus and a method which avoid the disadvantages known from the prior art, the

Improve material economy, and allow waste and benefits of such sheets to be cut, which undercut benefits in the transport direction. These tasks are performed by a device with the

Features of claim 1 and a method with the

Characteristics of claim 8 solved. advantageous

Embodiments are set forth in the dependent claims and the description below. There will therefore be a device for breaking out and

Use separation of punching line adjacent benefits and waste of a punched sheet proposed in particular for a sheet punching and embossing machine, while the sheet is moved in a transport direction. The

Device according to the invention comprises a first

Transport device for transporting sheets along the transport direction in a first plane at a first speed with a guided along guide rollers, endless first band and a hold-down means, wherein the hold-down means can be pressed onto the first band. The

Device further comprises at least one breaking-out means for breaking benefits from the sheet, wherein the

at least one breaking-out means in a second plane, which is not parallel to the first plane, onto the first band is depressible. The device further comprises a first stripping means for removing the separated from the use

Waste in the second level, wherein the first stripping agent can be pressed on the first band and a second

Transport device for removal of useful in a second plane nonparallel to the second plane at a second speed with a guide rollers guided along, endless second band and a second

Peeling means, wherein the second peeling means can be pressed onto the second band.

The device according to the invention is characterized in that the breakout means between a breaking position and a rest position away from the second level and to the second level is clocked movable. According to the invention, the breaking-out means is during the

Breaking of benefits from the arc in a second tangential to the tangential breakout position

arranged. The breaking-out means can touch the first band in the second plane. However, the breaking-out means can also be arranged at a distance from the second band in the breaking-out position. In one embodiment, that is

Breaking-out example, designed as a rotatable roller or roller, while it is designed in another embodiment as a kind of sliding block, wherein between the

Sliding shoe and the waste a sliding friction occurs.

If the breaking-out means is in the rest position, i. with a greater distance to the first band in the second plane than in the breakaway position, so can benefit the

Breakout, in the effective range of Ausbrechmittels transverse to the transport direction, during transport in

Transport direction from the first level to the third level pass unhindered, ie, for example, so that the benefit is transported without contact on Ausbrechmittel over. It is expedient to arrange the first level and the second level in such a way that the path between the

Breakaway position and resting position among others

constructive conditions, such as

For example, allowing the removal of waste, as small as possible. The optimum range is between a congruent and a vertical arrangement of the first level and the second level. The smaller the distance between the breakout position and the rest position, the lower the time required to move the breaker

Breakout between these two positions.

According to the invention, this results in the advantage that the sheet in its leading edge region a in

Transport direction in relation to the prior art may have narrower stripes waste.

According to the invention is also advantageous that the

Breakaway is clocked movable. The clock is an arbitrary chronological sequence of reciprocating movements of the Ausbrechmittels between the breaking position and the

Rest position. Conveniently, the stroke is adjustable so that the breaking-out means can be repeatedly reciprocated between the break-out position and the rest position during the breaking of benefits from a bow.

In one embodiment of the invention is in the

Transport direction before the hold down a

Arc detector is arranged. The arc detector can

For example, be designed as an optical sensor in the form of a photodiode or acoustic sensor in the form of an ultrasonic sensor. Sensors based on other physical effects can be used according to the invention.

By means of the arc detector, the leading edge of a transported sheet can be detected. Then the breakout means with the specific clock for the bow

between the breaking position and the rest position back and forth be moved. Accordingly, the recognition of the

Leading edge of the arc through the arc detector the task of a trigger for triggering the predetermined by the clock movement of the Ausbrechmittels. It is advantageous to arrange a plurality of breakout means transversely to the transport direction. As a result, the effective range of a Ausbrechmittels is transverse to the transport direction variable

adjustable. On the one hand it is possible Ausbrechmittel each with different widths effective areas across the

Transport direction to use, on the other hand, the

Ausbrechmittel be arranged transversely to the transport direction almost at any position. This is made possible by the fact that according to the invention on the bow in

Effective range of Ausbrechmittels no continuous in the transport direction web must be considered because

Breakaway means clocked between a breaking position and a rest position are movable. According to the invention, use can thus be broken out of such sheets, which have undercutting benefits in the transport direction. For this purpose, it may be provided that the plurality of breakout means are each movable in mutually independent clocks.

It is appropriate that the first speed and the second speed have equal amounts. This is beneficial for breaking and pay dividing

for example, folding boxes. There are no

Relative speed between already partially broken benefits and waste is present, takes place

Only break out by diverting the waste to the second level. If benefits from a sheet with, in relation to the previous embodiment of the carton, larger material thickness are broken, but can also be provided that the amount of the second

Speed is greater than the amount of the first Speed. As a result, in addition to deflecting waste from the first level into the second level, use can also be torn out of the waste in the transport direction, since there is a relative speed in the transport direction between use and waste.

Bow, utility and waste are moving due to the

Power transmission from the first band to bow and drop and due to power transfer from the second band to the benefit. To increase the static frictional force between sheet, benefits, waste and the corresponding tape, it is useful bow, use and waste with an additional force to your own weight normal force to press the appropriate band. Therefore, it is provided in one embodiment of the invention that forces with which the

Hold-down means and the first stripping means in the direction of the first band can be pressed and the second stripping means can be pressed in the direction of the second band, each being individually adjustable. For this purpose, it can be provided that

Hold-down means and / or first stripping means and / or second stripping means by means of a spring force in the direction of the first and second band can be pressed. to

Setting the spring force, for example, the

Preload the spring, for example, a coil spring, changed. Sheets may have different thicknesses depending on the use of their benefits. However, so bow, waste and benefits certainly between hold down, first stripping agent, second stripping agent and the

can be fed corresponding band, may be provided in one embodiment of the invention that the size of an air gap between the hold-down means and the first band and / or between the first stripping means and the first band and / or between the second stripping means and the second band respectively individually adjustable. Of the adjustable distance is preferably smaller than the material thickness of the sheet.

In one embodiment of the invention, the first

Puller formed as a spring-loaded roller, wherein between this roller and the first band, an air gap is adjustable. The air gap is smaller than the thickness of the sheet. There is no waste

between this roller and the first band there is also an air gap between this roller and the second band. The diameter of the roll can be in one

Embodiment of the invention are chosen so that in the presence of waste between the roller and the first band, the role is also pressed against the second band. With sufficiently large normal forces, this can also be a force from the second band on the role and from the role of waste transferred. It is therefore advantageous that the first stripping means is designed so that a

Tangle between the first band and the second band

is adjustable. By the device according to the invention, the

required set-up times for the breakout and

Divider another sheet, i. with a different distribution of benefits and waste, significantly reduced. For this purpose, only the breaking-out means are to be placed transversely to the transport direction at intended positions and the bars required for the break-out means,

for example, from a memory of a control device to choose. In this way, in the control device, the positions of the breakout means and the respective clocks can be deposited for a plurality of different sheets. The operator of the device according to the invention can then by, for example, visual and / or acoustic

Instructions the conversion of the device can be specified.

There will continue to be a method of breaking out and Use separation of punching line adjacent benefits and waste of a punched sheet proposed while the sheet is moved in a transport direction.

The method thereby comprises transporting the sheet in a first plane, breaking the utility from the waste by deflecting the waste from the first plane into a second plane not parallel to the first plane and further transporting the waste to the second plane, and further transporting the utility into a third plane not parallel to the second plane. This is done

Deflecting the waste from the first level into the second level by selective application of force to the waste at at least one stationary point of action, wherein the drop due to its movement in the transport direction along a parallel to the transport direction Einwirspur on

Impact point is transported over.

In principle, punching lines can be arranged in any direction on the sheet, with the benefit outwardly limiting punching lines, however, always form a closed curve on the sheet. According to the prior art, a force, for example, by rigid

arranged rotatable rollers are generated. Therefore, when designing the distribution of the benefit on the sheet, care must be taken to ensure that there is always a direction of transport on the sheet in the region of the point of application of the force

continuous web waste is taken into account, since otherwise the benefit is deflected by the force downward. Accordingly, in the region of the bridge an arrangement of

Punching lines across the transport direction impossible. The method is characterized in that a

Force on the waste is terminated before the

Influence trace intersects a punching line odd order and the force is again effected after the Einwirspur has crossed an even-order punching line. With respect to the device according to the invention remains

Influence point stationary, since this represents the point on which the selective impact on the waste

takes place. After quitting and recovering the

Force is the point of action at the same position with respect to the device according to the invention arranged as before the termination of the force.

The proposed method can be

Material economy can be improved in a remarkable way, since benefits in applying the method so on the sheet

can be arranged that the proportion of waste is minimized at the bow, so also that punching lines cross crossing tracks transversely to the transport direction.

In the case of traces of intervention of crossing punching lines, there is a defined number of punching lines for each engaging track, which intersect the action track of the point of action. Each lane may have a different number of cut lines crossing the lane. Contrary to the

Transport direction starting at the leading edge of the sheet, these can be counted separately for each Einwirkspur, so that punching lines odd order,

For example, the first, third, fifth order and punch lines of even order, for example, second, fourth, sixth order result. By terminating the force on the scrap before the tangential line becomes a punching line odd

Order crosses the benefit can be transported further from the first to the third level. If the interference track intersects a straight-line punching line, the force effect is again effected, whereby waste is again deflected from the first to the second plane.

It is expedient that the leading edge of the arc in the first plane in front of the at least one point of action an arc detector is detected. The recognition of the

The leading edge of the bow is a kind of trigger triggering a timed sequence of stopping and re-establishing the force on the waste. This time sequence is called a clock.

It is expedient that a cycle of the force to be terminated and again to be effected is preset for the respective arc. This does not mean every one has to

Stamping line, which crosses a Einwirspur, be recognized individually. According to the invention, however, the recognition of punched lines by using a further sensor is possible.

To further increase the freedom of design when distributing the benefits on the sheet and thus improving the material economy can be provided that the

Force effects on at least two to parallel

Existing intervention points are terminated with independent cycles and re-effected.

Hereinafter, an embodiment of the described device and the method will be explained in more detail with reference to drawings. Show

Fig. 1 is a schematic representation of the cross section of a device according to the invention for breaking and Nutzentrennen, wherein a Ausbrechmittel is in a Ausbrechposition and Fig. 2 is a schematic representation of the cross section of the device according to the invention shown in FIG. 1, wherein the breakout means is in a rest position.

FIG. 1 and FIG. 2 both show a schematic representation of the same preferred embodiment of the device according to the invention but in different states. While the breakout means 10 in Fig. 1 in a breaking position 18th is arranged, the breaking-out means 10 in Fig. 2 in a rest position 19 is arranged.

The device according to the invention can be used in particular in

Sheet punching and embossing machines are used. In this case, the device as of the Bogenstanz- and

Embossing machine removable assembly be executed or form a firmly connected unit with the sheet punching and embossing machine, which, for example, only for transport purposes can be dismantled. Since breaking and Nutzentrennen the actual punching and / or embossing process in time

connect, the inventive device is the punching and / or embossing tool in the transport direction 4 of the sheet 3 downstream, with other assemblies of the sheet punching and embossing machine in addition to the actual invention

Device in Fig. 1 and Fig. 2 are not shown.

In Fig. 1 and Fig. 2 are each a first on the left

Transport 5 and right of it a second

Transport device 13 shown. While with the first conveyor 5 of the sheet 3 of one of

invented device upstream of the sheet punching and embossing machine and the

Waste 2 is transported away after breaking out, with the second transport device 13 is a benefit. 1

removed. The first transport device 5 and the second transport device 13 can be designed as separate modules, so that the

Easy to disconnect device according to the invention, for example, to perform maintenance or adjustment work on otherwise inaccessible areas of the first transport device 5 and / or the second transport device 13.

The first transport device 5 comprises a along

Guide rollers 7 guided, endless first band 8, wherein the first band 8 is shown only in sections and

Therefore, on the presentation of other pulleys. 7 is waived. The first transport device 5 also comprises a drive device, not shown, by means of which the first belt 8 is movable at a first speed. The second transport device 13 comprises a along

Deflection rollers 7 guided, endless second belt 15, wherein the second belt 15 is shown only in sections, and therefore the representation of further deflection rollers 7 is omitted. The second transport device 13 also includes a non-illustrated drive means by means of which the second band 15 is movable at a second speed.

The first speed and the second speed are independently adjustable. Depending on which material or material combination of the sheet 3

The first speed and the second speed may be set equal or such that the second speed is greater than the first speed

Speed. In the following, the device according to the invention and the method according to the invention with reference to FIG. 1 and FIG. 2 are shown, wherein the breaking and

Nut zentrennes a sheet 3 during the transport of

Arc 3 is explained by the device according to the invention.

After being punched and / or stamped, the sheet 3 which has been processed with a punching tool leaves the area of the punching and / or embossing tool of the sheet punching and embossing machine, which does not belong to the device according to the invention

is added, and is disposed on the first belt 8 of the first transport device 5. The sheet 3 may be arranged a plurality of transversely to the transport direction 4

Have punched lines. The first band 8 transports the Sheet 3 at the first speed in the first plane 6. By means of the sheet detector 17, the leading edge of the sheet 3 is detected. This information is sent to a control device, not shown, of the invention

Device transmitted.

As a result, the sheet 3 reaches the hold-down means 9, which may be formed as a roll, roller, ball or the like. The height-adjustable in relation to the first level 6 hold-down means 9 is spaced from the first band 8. Due to the height adjustment of the

Hold-down means 9 can be customized to different

Material strengths of sheet 3 are reacted, so that their collection is ensured in the hold-9. If the sheet 3 is retracted into the hold-down means 9, this exerts an adjustable force on the sheet 3 in the direction of the first plane 6. The force is adjusted to provide good adhesive contact between the sheet 3 and the first belt 8, i. the one for transporting the sheet third

sufficiently strong static friction arises. the

Hold-down means 9 is on the other side of the first

Bandes 8 facing a guide roller 7, which is fixedly mounted, but rotatable.

As a result, the sheet 3 reaches the breaking-out means 10. Transversely to the transport direction 4, a plurality of break-out means 10 can be arranged next to each other. The number of

Ausbrechmittel 4 is only by the transverse to

Transport direction 4 respectively required space and the maximum available width of the first band 8 limited. The breaking-out means 10 is preferably designed as a roller or roller. In another embodiment, the

Ausbrechmittel 10 but also be designed as a shoe. The breaking-out means 10 is arranged to be movable. By means of an actuator, not shown, the breakout means 10 away from the first band 8 and back to the first band 8 to to be moved. The actuator can, for example, as

be formed pneumatic, electrical, hydraulic or other actuator, which in turn is supplied with energy and is connected to the control device. In Fig. 1, the breakout means 10 in his

Breakout position 18, i. moved to the first volume 8, shown. In contrast, in Fig. 2 the breakout means 10 is in its rest position 19, i. moved away from the first volume 8, shown. If the sheet 3 has reached the breaking-out means 10, the breaking-out means 10 detects the leading edge of the sheet 3 which has waste 2 across its entire width transversely to the transport direction 4 in the region of the leading edge and directs the waste 2 into a second plane which is not parallel to the first plane 6 11 off. The breaking-out means 10 is opposed on the other side of the first band, a deflection roller 7, which is fixedly mounted, but rotatable. All breakout means 10 are in the breaking position 18.

As the sheet 3 continues to move on the first belt 8, the waste 2 moves down to the second level 11

deflected, with benefit 1 moves further in the first plane 6 in the transport direction until it reaches the second band 15 of the second transport device 13 in a non-parallel to the second plane 11 third level 14.

Preferably, the third level 14 is below the first one

Level 6 arranged, as benefits 1 during transport from the first band 8 to the second band 15 due to its

Elasticity and the weight force acting on it bends. Are Ausbrechmittel 10 in the breaking position 18 and waste 2 between the breakout means 10 and the first band 8 is arranged, this is possible by a selective application of force to the waste 2 at a stationary impingement point 20 while the waste 2 is transported past the point of action 20 due to its movement in the transport direction 4 along an incident track parallel to the transport direction 4. Is located

Breakaway means 10 in the breaking position 18, no benefit from the first band 8 to the second band 15 can be transported in the region of the Einwirspur this Ausbrechmittels 10, since the path is blocked by the breakout means 10. Merely use 1 of the transverse to the transport direction 4 between

Stripping means or their Einwirkspuren is arranged can be transported from the first band 8 to the second band 15 when Ausbrechmittel 10 are arranged in the breaking position 18.

As a result of the transport of the sheet 3 in the transport direction 4 and punching lines can approach the breakout means 10, which in the further course of the Einwirspur this

Crossing 10 would cross. Contrary to the

Transport direction 4 starting at the leading edge of the sheet 3, intersecting punching lines for each tangential track can each be counted separately, so that punching lines odd

Order, for example, the first, third, fifth order, etc. and straight lines, for example

second, fourth, sixth order and so on.

In order that the benefit 1, which is located opposite to the transport direction 4 behind a punching line of odd order, can be transported from the first belt 8 to the second belt 15, the action of force on the waste 2 is terminated before the intervention track crosses a punching line of odd order and effects the force again is after the Einwirspur has crossed a punching line of even order.

Due to the individual arrangement of the benefit 1 on the sheet 3, arises for each Einwirkspur a sheet 3 each have their own clock, the clock any temporal

Sequence of reciprocating movements of the breaking-out means 10 between the breaking position 18 and the rest position 19. Thus, for the timing of an individual sheet 3 predeterminable and stored in the control unit, not shown. By means of the arch detector 17 stored in the controller information that a sheet approaches the breakout means 10, the

Breakout means 10 then driven by means of the actuators, not shown, with the clock of the respective Ausbrechmittels 10 and the reciprocating movement of the Ausbrechmittels 10 are effected.

Waste 2, which is further transported on the first belt 8, approaches due to a first stripping means 12, which may be formed as a roller. The height-adjustable with respect to the second level 11 first

Peeling means 12 is spaced from the first band 8

arranged. Due to the height adjustment of the first

Peeling agent 12 can be customized to different

Material strengths of sheet 3 are reacted, so that their collection is ensured in the first stripping means 12. If the sheet 3 is retracted into the first peeling means 12, this exerts an adjustable force on the sheet 3 in the direction of the second plane 11. The force is adjusted to provide good adhesive contact between the sheet 3 and the first belt 8, i. the one for transporting the sheet 3 sufficiently strong static friction force arises. The first stripping means 12 is opposite to the other side of the second belt 15, a guide roller 7, which is fixedly mounted, but rotatable.

Benefit 1, which is transported from the first band 8 to the second band 15, approaches due to a second one

Peeling means 16, which may be formed as a roll or roller. That in relation to the third level 14

height-adjustable second peeling means 16 is spaced from the first band 8. Due to the height adjustment of the second stripping means 16 can be individually reacted to different thicknesses of sheet 3, so that their collection is ensured in the second stripping means 16. If the sheet 3 is retracted into the second peeling means 16, this exerts an adjustable force on the sheet 3 in the direction of the third plane 14. The force is adjusted so that a good adhesive contact between the sheet 3 and the second band 15 is formed, that is, a sufficiently large static friction force for transporting the sheet 3 is formed. The second stripping means 16 is on the other side of the second belt 15, a deflection roller 7 faced, which is fixedly mounted, but rotatable.

The process described is repeated as a result of each transported sheet 3. When changing to a sheet 3, which has a different distribution of benefits and waste, the

Be converted device according to the invention. For this purpose, breakout means 10 can be freely positioned transversely to the transport direction 4. The number of breakout means 10 is variable and adaptable to the respective sheet 3. Only the extension of the Ausbrechmittels 10 across the

Transport direction 4 acts restricting the maximum usable number of breakout means 10. If the number and position of breakout means 10 is changed, the necessary for the breakout means 10 clocks, for example, from a memory of the control device to choose. In this way, both the

Positions of Ausbrechmittel 10 and the respective clocks for a variety of different sheets 3 are deposited. Device and method for breaking and pay dividing

LIST OF REFERENCE NUMBERS

1 benefit

2 waste

3 sheets

4 transport direction

5 first transport device

6 first level

7 pulley

8 first volume

9 Hold-down

10 breakouts

11 second level

12 first stripping agent

13 second transport device

14 third level

15 second volume

16 second stripping agent

17 arc detector

18 breaking position

19 rest position

20 stationary point of action

Claims

Device and method for breaking and Nutzentrennen claims

1. A device for breaking and Nutzentrennen of adjacent punching lines utility (1) and waste (2) of a punched sheet (3) while the sheet (3) in a transport direction (4) is moved, in particular for a sheet punching and - embossing machine comprising a first transport device (5) for transporting sheets (3) along the

Transport direction (4) in a first plane (6) at a first speed with an endless first belt (8) guided along deflection rollers (7) and a hold-down means (9), wherein the hold-down means (9) acts on the first belt (8). can be pressed, at least one breaking-out means (10) for breaking benefit (1) from the sheet (3), wherein the at least one breaking-out (10) in a second plane (11) nonparallel to the first plane (6) on the first band (8) is depressible, a first stripping means (12) for transporting away from the utility (1) waste (2) in the second plane (11), wherein the first stripping means (12) on the first band (8) can be pressed and a second transport device (13) for transporting benefits (1) in a relative to second level (11) non-parallel third plane (14) at a second speed with an endless second belt (15) guided along pulleys (7) and a second pullout means (16), the second pullout means (16) acting on the second belt (16); 15) can be pressed, characterized in that the

Breakaway means (10) between a breakout position (18) and a rest position (19) away from the second plane (11) and to the second plane (11) is clocked to move.

Apparatus according to claim 1, characterized

characterized in that an arc detector (17) is arranged in the transport direction (4) in front of the hold-down means (9).

Apparatus according to claim 1 or 2, characterized in that a plurality of Ausbrechmittel (10) transversely to the transport direction (4) are arranged, wherein the plurality of Ausbrechmittel (10) are movable in mutually independent clocks.

Device according to one of the preceding claims, characterized in that the first

Speed and the second speed equal amounts.

Device according to one of the preceding claims, characterized in that forces with which the hold-down means (9) and the first stripping means (12) in the direction of the first band (8) can be pressed and the second stripping means (16) in the direction of the second band ( 15) can be pressed, each being individually adjustable.

Device according to one of the preceding claims, characterized in that the size of an air gap between the holding down means (9) and the first band (8) and / or between the first peeling means (12) and the first band (8) and / or between the second peeling means (16) and the second band (15) is individually adjustable.

Puller (12) is designed so that a

Frictional connection between the first band (8) and second band (15) is adjustable.

A method of breaking and pay dividing benefits (1) adjacent to punching lines and dropping (2) a punched sheet (3) while moving the sheets (3) in a transporting direction (4), comprising

Transport of the sheet (3) in a first plane (6),

Breaking the utility (1) from the waste (2) by diverting the waste from the first level (6) into a relative to the first level (6)

nonparallel second level (11) and

Onward transport of the waste (2) in the second level (11),

Further transport of the benefit (1) into a third plane (14), which is non-parallel relative to the second plane (11), wherein the deflection of the waste (2) from the first plane (6) into the second plane (11) by selective application of force to the waste (2) takes place at least one stationary point of action (20) and the drop (2) due to its movement in the Transport direction (4) along a for

Transport direction (4) parallel Einwirkspur at the point of action (20) is transported past, characterized in that the

Force on the waste (2) is terminated before the Einwirkspur crossed a punching line odd order and the force is again effected after the Einwirspur a

Stanzlinie even order has crossed.

Method according to claim 8, characterized

in that the front edge of the sheet (3) in the first plane (6) is detected by an arc detector (17) in front of the at least one point of action (20).

Method according to one of claims 8 to 9,

characterized in that a cycle of the force to be terminated and again to be effected for the respective sheet (3) is preset.

Method according to one of claims 8 to 10, characterized in that the

Force effects on at least two to Einwirkspuren belonging to parallel contact points (20) terminated with independent cycles and again be effected.