EP0896945A2 - Device for and method of processing material such as pile layers of paper - Google Patents

Abstract

In a process and assembly to prepare a stack of large rectangular sheets of paper, a pallet (2) is first placed upon a jack (40)-mounted table (23). The pallet is then raised to the required height and precisely pre- positioned by a fine-positioning to receive the successive sheets of paper.The first one to five sheets of paper is then ejected or released from the supply conveyer (50) and the conveyer halted. The position of the uppermost sheet is then adjusted with respect to the pallet by the fine-positioning, adjustment so that there is a gap between the paper edge and pallet edges.

Description

The invention relates to a device or a method for processing, especially for compiling flat or flat material to packages, such as cubic Stack. Their stacking layers form all sides in the stack consistently flat surfaces and close horizontally, in one inclined direction or vertically to each other. In the stack different layers of material can be provided, for example, as a larger layer, a base layer, such as a Pallet, and as smaller layers individual sheet layers Paper or the like. The latter are each lying on top of one another summarized together with an envelope or the like and form a stacked layer, like a paper giant form. All edge surfaces of the respective stack layer stand against all related and parallel ones Edge surfaces of the base layer back in the stack so that they through the above base course - in the following range called - protected against shock loads during transport are.

The mutual precise alignment of the material layers, namely the pallet and the stacked layers - in the following giant called - is difficult when at high speed merged and then transported away as composite units should be. Will the material layers only aligned by having a conveyor against one Stop can be moved, so they can mutually rotational positions ingest, namely obliquely instead of congruent to each other lie. Are the layers of material or the stacked layers after piled up against each other for alignment moved, damage can occur because the Material layers with high surface pressure or under the weight lying above each other.

The invention has for its object a device or to create a method with which disadvantages are known Training or the type described can be avoided can and in particular a precise alignment of the Material layers after placing on a table surface or on the stack or the like. Guaranteed, preferably one fully automatic consolidation or stacking of material layers should be possible.

According to the invention, means are provided for the material layers, Pallet and / or giant, initially on a table surface filing and after filing a predetermined number of material layers to align them parallel to the table surface. The number mentioned can be between one and three or five lie. The alignment is conveniently done in one first and a right-angled second direction parallel to the table surface. With rectangularly delimited layers of material each of the directions lies at right angles across and parallel to the edges of these layers of material. Appropriately the means first align the pallet on the table surface sliding out. After that, several giants on the pallet and placed on top of each other and then together on the pallet as well aligned with each other. Then everyone lies on top of each other associated edge surfaces of this giant at the same level as well opposite the associated edge surfaces of the pallet set back at equal intervals. E.g. can the to Material planes right-angled center axes of all material layers Aligned in the finished or finally aligned state lie. It has proven beneficial if the giant first by one-way advance filed and then offset from their final alignment can only be aligned by moving. All Stacking layers are opposed to the ones at right angles to their main levels occurring pressures rigid or unyielding.

The same stops or sliders can both be used for alignment the palette and subsequently to align the Giant used. Pre-alignment is advantageous a separate stop, such as an overrun stop, or a separate slider, such as a conveyor, is provided. He promotes the giant from a distance from the stacking zone Area over the stack, aligning and passing she then to the table in this pre-prepared state. The alignment stops can be used like pliers against each other and moved against the edge surfaces of the material layers become, especially linear and parallel to the table level. One of the two stops can be in its Stop position itself positively determined by the stop to ensure precise positioning with a short response time to ensure.

Instead of on a pallet, the giant can also open up immediately the table surface can be stored, creating palletless stacks can be formed. Their stack layers can then by a common wrapping, for example a complete one covering packaging made of paper, cardboard or the like be mutually secured. The stacking table is useful height-adjustable as a lifting table, namely in particular while stacking the stack by the thickness of each Stacking layer or stacking layer can be lowered. So be for everyone stack layer to be deposited the same transfer ratios reached. The stops could be stored on the stacking table and compared to this across the table level, namely height adjustable be. The stops are useful in stationary Mounts or bearings of the stationary base frame of the Establishment secured. So changes with the height adjustment of the stacking table also their distance from the table level. The stops can therefore always be in the top area Layers of material lie and be effective while they are underlying, already aligned material layers can no longer touch.

The pallet is advantageous to the stacking table in one direction, for example the second direction mentioned, while the giant is perpendicular or perpendicular to it lying direction, for example the first mentioned Direction. So in view of the Table level a crossing feeder. At the stationary Intersection finds the stacking and alignment of everyone Material layers instead. Then the stack is rectified conveyed away to feed the pallet.

The promotion and orientation of each of the material layers can according to European patent application 97 12 1516.5 on their characteristics and effects for inclusion reference is made to the present invention.

Fig. 1

eine erfindungsgemäße Einrichtung in Draufsicht,

Fig. 2

einen Ausschnitt der Fig. 1 im Schnitt und in vergrößerter Darstellung,

Fig. 3

einen Ausschnitt der Fig. 1 mit weiteren Einzelheiten,

Fig. 4

den Ausschnitt gemäß Fig. 2 nach der vorausgerichteten Aufschichtung von Riesen und

Fig. 5

den Ausschnitt gemäß den Figuren 2 und 4 bei der Fertigausrichtung der Riese.

These and further features of the invention are also apparent from the description and the drawings, the individual features being realized individually or in groups in the form of sub-combinations in one embodiment of the invention and in other fields and representing advantageous and protectable designs for which protection is claimed here. Embodiments of the invention are shown in the drawings and are explained in more detail below. The drawings show:

Fig. 1

a device according to the invention in plan view,

Fig. 2

2 shows a section of FIG. 1 in section and in an enlarged view,

Fig. 3

1 with further details,

Fig. 4

2 after the pre-arranged stacking of giants and

Fig. 5

the section according to Figures 2 and 4 in the final alignment of the giant.

The device 1 is used to stack giants 3 with or without pallet 2 to a total stack 4 from all stack or Material layers 2, 3. The lowest support layer, namely the Pallet 2 is larger than giant 3. All parallel to each other and rectangular edge surfaces 5 to 8 of the layer 2 are in plan view over all edge surfaces 13 to 16 of the Giant 3 in front. The also parallel and perpendicular to each other Edge surfaces 13 to 16 are then parallel to each associated, next edge surface 5 to 8 and set back against this. The edge surfaces 13 to 16 all giant 3 lie in the finished stack in a common, to conveyor levels 9, 10 and material level 17 of layers 2, 3 rectangular plane. The pallets 2 are in a further removed, lower conveying plane 9 in conveying direction 11 fed. The giant 2 are in a closer or higher Conveying level 10 fed in the conveying direction 12, which is in view to the parallel and horizontal planes 9, 10, 17 is perpendicular to direction 11. The stack 4 are in promoted the funding level 9.

Only after each layer 2, 3 has been fed onto a table surface 18 and with or after completion of the associated conveying movement and before laying on the next layer 3, the respective Location 2, 3 in directions 11, 12 exactly opposite then aligned table surface 18. The table surface 18 defines a table level 19 which is parallel to the Levels 9, 10, 17 and directions 11, 12 lies and from their level with the level 9 linearly in the direction moved to level 10 or raised and then gradually again can be retracted or lowered. The alignment takes place in a stacking station 20 or 21. The station 20 is, based on the direction 12, upstream and Station 21 immediately adjacent to station 20 downstream. Both stations 20, 21 are essentially the same educated. Both stations 20, 21 are in or opposite to direction 11 with pallets 2 and then in or loaded with giants 3 opposite to direction 12. Then the mentioned alignment with one follows Base frame 22 of the device 1.

Only then is the next Ries 3 on the respective one Partial stack placed or under a flat S-shaped curve gradually lowered or stored without first or after their alignment, the respective layer 2 or 3 again is moved. The alignment movements are much smaller than the lengths of the individual edge surfaces 5 to 8 and 13 to 16 or as half or a tenth of it.

The table surface 18 is through the top of a lifting or Layer table 23, namely through the upper run of a conveyor belt 24 formed over two in the direction 11 at a distance diverting deflections 25 and below the upper run runs parallel to this. Between that Exciting deflections in the upper run 25 is against the upper run Deflections, for example on a sliding table, rigid supported so that it is level between the deflections 25 goes through. The table surface or the ones arranged on it Layers 2, 3 are in and against direction 11 with a conveyor drive 26 movable, which e.g. within a redirection 25 can be arranged as an axis motor. The separate Table surfaces 18 or conveyor belts 24 of the same design and arranged tables 23 are independent from each other in Drivable in the direction of 12 as well as raised and lowered.

The deflections 25 can be mounted in a frame that in turn in a fixed or stationary table tour 27 with a linear actuator 28 motorized in and against Stroke direction 29 perpendicular to levels 9, 10, 17, 19 and the directions 11, 12 can be lowered and raised. The maximum lifting height is at least as large as or greater than the maximum height of the stack 4. Each table 23 the The two stations 20, 21 can be used independently of the table 23 other station are raised and lowered by motor.

Within each station 20 and 21 are independent of the aligning means 30 provided at another station. With the pallet 2 on the table surface 18 in the Directions 11, 12 slidingly aligned as long as the Table level 19 in or above level 9 and below level 10. Then a pallet 2 first ream 3 placed off-center, on the successive then at least one other ream according to FIG. 4 from the Level 10 can be dropped. Before or during that the next following Ries 3 is placed, the table 23 lowered by the thickness or height of a ream 3. Each Ries 3 consists of a large number of equally large, flush layers of paper stacked on top of each other, which with a folded package and are wrapped like that Pallet 2 form a flat plate body. The Ries 3 is with horizontal alignment under its weight flexible.

After one to three first giant 3 and offset against each other and against pallet 2 have been deposited, these giant 3 with the means 30th in one go and together against each other and opposite of the fully aligned pallet 2 aligned in the target position. They slide on pallet 2 and on top of each other up to stop positions, while the pallet 2 only by friction on the table surface 18 or by positive The stop remains motionless. Then another ream stored in the middle and immediately thereafter according to FIG. 5 with the means 30 with sliding movement on the already aligned giants 3 aligned with these or ready. Alignment of pallet 2 and all giants 3 parallel to direction 12 is done with the same alignment members. All layers 2, 3 are expedient only in one single direction 12 moved relative to the table surface 18.

The means 30 comprise members 31 to 39, each one Stop, a sensor, like a non-contact one Sensor, a slide or the like. The orientation of the Pallet 2 in direction 11 can be done in level 9 by that the conveyor 24 the leading edge of the pallet 5th is moved against a stop 31 and then stopped. This can also be done by means of a pallet 2 or one of the edges 5, 6 detecting sensor 32, which is outside the stroke of the table 23 adjacent to the side edge or lies between the lifting tables 23. The stationary, however as the stop 31 parallel to the direction 11 in different Position-adjustable sensor 32 can be a photocell. After applying the entire edge 5 to the stop 31 this from the edge 5 and from the stroke of the table 23 after moved out and above. The table 23 is then in raised its highest position immediately below level 10, after which the alignment takes place parallel to direction 12, if this has not already been done in level 9 is.

To align the pallet 2 in the direction 12 can namely on Table 23 is a side stop 33 projecting above level 19 be provided for one of the edges 7, 8 which is parallel to the Direction 11. Is this side stop 33, as well conceivable, not movable parallel to direction 12, so it can a slide or an inclined sliding surface are opposite, which the pallet 2 after or during the movement against the Alignment member 31, 32 bears against the stop 33 and thereby aligns parallel to direction 12. Based on the direction 12 is the downstream edge 7 against the stop 33 created, while on the opposite edge 8 of the Could attack slider or the like. The stop 33 leads the Movement of the table surface 18 not with, but is on Bearing frame of the table 23 attached so that it Performs lifting movements. The stop 33 is less than the thickness of the pallet 2 before the table level 19 and secures the pallet 2 when aligning the giant 3. The same Alignment member 31 or 32 can be used for alignment both in the Station 20 as well as in station 21, in particular alternating, Be used. The stop 31 or a opposite stop 31 for the edge 6 as a motor driven slide to align the pallet 2 in parallel used for direction 11.

In the case shown, the pallet 2 is on level 9 Stop 33 first pre-aligned, then close below Level 10 raised and there with a slider 35 in the direction 12 fully aligned against a counter stop 34. Of the stop 34 lying completely above the table level 19 can with its stop surface level with the stop surface of the stop 33 and how the slide surface of the slider 35 up over the top of the Pallet 2 protrude by the thickness of one to three giants or do not protrude. In this raised position, too Alignment of the pallet 2 parallel to the direction 11 with corresponding stops or sliders 37, 38 take place.

Before the giant 3 on the table 23, the pallet 2 and the already placed on this giant 3 will be each ream 3 in direction 12 and in level 10 on one Stop 36 aligned in such a way that it only afterwards still aligned by moving towards 12 becomes. The stop 36 protrudes above the level 10 and is like the aligning members 34, 35 hanging, so that none over the stop or slide surface down protruding parts are provided. The alignment members 34, 35, 36 are permanently at a distance above the table level 19. When promoting giant 3 towards 12 over the Table 23 and the pallet 2 run with the respective ream its downstream edge 13 onto the stop 36 on, which ends the conveying movement. After that the Ries 3 thus prepared on the table 23 by parallel displacement filed in direction 29, with the alignment members 34, 35 may be removed from layers 2, 3 or on can concern them. The stop stop 36 of the station 20 2 from the conveyor path of the giant 3 or from the Level 10 move out, so that the giant 3 unhindered too can be transferred to station 21.

After aligning the pallet 2 and lowering it below the links 34, 35 become the same links 34, 35 for Alignment of each of the giants 3 parallel to the direction 12 used. After or with the lowering of the pallet 2 therefore the aligning member 34 against direction 12 against one stationary stop 39 in the alignment position for the giant 3rd emotional. These are then compared with the upstream lying edge 14 adjacent slide 35 in direction 12 with their downstream edges 13 against the stop 34 created.

Each of the alignment members 31 to 39 can be independent of all others are motor-driven, especially crossways to the associated edge surface 5 to 8 and 13 to 16 or across to their edges or parallel to the associated edge surface. For this purpose, bearing and drive means 40 are provided, which comprise elements 41 to 49.

Laterally adjacent and between the tables 23 is parallel a guide 41 for one or two runners 42 for direction 11 provided, each of which is fixed with a stop 31st connected is. The guide 41 and its axis are slightly above level 9, 19 and are opposite the frame 22 arranged fixed. The sensor 32 can also be in this Guide parallel to direction 11 steplessly displaceable be stored. In addition, the rotor 42 is with the stop 31st around the axis parallel to the planes 9, 10, 17, 19 Guide 41 can be swiveled through 90 or at least 180 °, so that the stop 31 from the two stop positions in one vertically upward rest position are transferred can in which he outside the stroke of both tables 23rd lies. Moving and panning independently each stop 31 takes place via a drive 43. The two Stops 31 can be pivoted independently of one another and slidable or jointly as well as synchronously opposing slidable, so that they the respective layer 2 in the manner of a Align pliers with the table surface 18 stationary.

The stop 34 is parallel to the direction with a guide 44 12 continuously slidably mounted and for moving with a drive 45, for example a fluid cylinder, connected to the piston rod attached to its rotor 46 can be. The stop 34 lies at a distance below the Elements 44, 45. The slide 35 is with a corresponding Guide and a drive 47 parallel to the direction 12th also linearly displaceable. The one at the bottom Sliders 35 carrying sliders and freely projecting downwards 48 is directly on the piston of the fluid cylinder 47, that is without Piston rod, fastened and protrudes through a slot from the Cylinder jacket so that it is stable at the same time Leadership guaranteed. The drive 47 is like that Elements 44, 45 at least partially or completely above of links 34, 35 and level 10. The same applies also for the guidance or storage 49 for the stop 36, which about an axis parallel to the direction 11 over at least Is pivoted 90 or 180 °. In the stop position 4 and 5, the stop 36 lies perpendicular to levels 9, 10, 17, 19 and in the release position 2 parallel to it in direction 12 free outstanding.

To feed the giant 3 in level 10 is a stack conveyor 50 provided, like the tables 23 and all others Conveyor an endlessly rotating transport element, namely here two lateral tension members 52, like chains, having. At and between these are in the direction of 12 in evenly spaced successively equal sizes Support elements 51, for example plates attached. Thereby is between respective adjacent layer or reamers 51 a gap or opening 53 is formed through which the ream 3 lowered onto the table 23 and at the same time from the plate 51 can be stripped. The length parallel to direction 12 the carrier 51 or the openings 53 can be larger, smaller or be the same size as the same extent of the layers 3. In addition, this extension of the openings 53 can be larger, smaller or the same size as the same extension of the Carrier 51 be. With the upper run of the conveyor 50 Giant 3 in level 10 towards 12 over table 23 conveyed until it with the edge surface 13 on the stop 36 accrue and 50 of the associated with continued conveyor Carrier 51 through the downstream opening 53 stripped and thereby with the lower edge of the surface 14 starting gradually in the direction of 12 to the edge surface 13 are filed. Located on each carrier 51 only one ream 3. The upper run of conveyor 50 goes over both Tables 23 through continuously and is at each other opposite sides of these tables 23 via deflections 54 led to further diversions below, between which the lower run below tables 23 and guide 27 runs back. The stop 36 is opposite the stop 34 always offset against direction 12 so that after discarding the edge 13 is also at a distance from the stop 34, if this according to FIG. 5 in its stop position on the stop 39 is set.

The frame 22 comprises a housing 55 in which the tables 23, the means 30, 40 and the conveyor 50 are completely arranged are. The immediately adjacent to the ends of the table tops 18 or the conveyor 50 lying walls of the Housing 55 form over the entire height of the device 1 Shields and are opposite to the respective wall smaller openings 56 for the passage of the pallets 2, the Giant 3 and the stack 4 provided. The openings 56 for the Passage of the pallets 2 are at level 9 and are provided in both opposite walls as well as possibly large enough to pass through the entire stack 4 to promote. The opening 56 for feeding the giant 3rd on the conveyor 50 is at level 10, one the deflections 54 immediately adjacent to the inside of the associated housing wall is provided. In both of them opposite walls can be at the same height Openings may be provided, especially if each of the Conveyor can be driven in opposite directions.

The supporting parts of the frame 22 lie completely within the housing 55 and include parallel to the direction 12 elongated or perpendicular to the levels 9, 10, 17, 19 Sidewalls 57, which are on both sides in the area of the ends the tables 23 and above are provided so that the upper run of the conveyor 50 lies between them. To the Inside of the side cheeks 57 or in plan view according to FIG. 3 between these, the frame 22 has longitudinal spars 58, which also in plan view on both sides of the conveyor 50 parallel to direction 12 and over to direction 11 parallel trusses 59 are rigidly connected. Of the frames 58, 59 thus formed can be an exchangeable assembly unit form that of the side cheeks 57 or together detachable with these from the rest of the frame 22 without destruction and / or is continuously adjustable parallel to the direction 11. Each station 20 or 21 can be a separate such unit or this unit can be common to both stations 20, 21 may be provided. On the upstream Traverse 59, the alignment members 34, 36, 39 of the station 20 be stored so that their effective alignment or Stop surfaces are below this cross member 59. In the alignment members mentioned are accordingly Station 21 attached to the downstream traverse 59. The guide and drive means 44, 45, 47 can be provided on said assembly unit, so that a simple conversion of the device 1 to different Formats of layers 2, 3 as well as a good one Maintenance of all furnishings are possible.

To feed and discharge the pallets 2 and the giant 3 for respective stations 20 and 21 are outside the frame 22 or the housing 55 provided funding 60, which motor driven and by reversing direction both as Feeders as well as discharge are suitable. this applies for each of the sponsors 61 to 64 of the funding 60. Everyone this conveyor 61 to 64 can be a belt conveyor with a conveyor belt running over deflections and independent of all other conveyors can be driven. With the feeder 61 is a pallet 2 in level 9 through the associated opening 56 directly to one of the tables 23 in Pass direction 11. The conveyor 61 is one below the plane 65 lying guide 65 of the frame 22 parallel to direction 12 in line with each of the two tables 23 can be moved by motor, so that it can be attached to any of the Tables 23 can pass the pallet 2. The conveyor 61 is a pre-conveyor 62 upstream, which the pallet 2 in level 9 directly to conveyor 61 in direction 11 passes and aligned with the table 23 of the station 21. For Taking over a pallet 2, the conveyor 61 is along the Guide 65 aligned with the conveyor 62.

The feed conveyor 63 is used for the immediate transfer of the giant 3 in level 10 and in direction 12 to the conveyor 50 and connects this conveyor 50 directly to the outlet a packaging machine for the giant 3. Also on the opposite Such a feeder could end the conveyor 50 63 with direction of conveyance opposite to direction 12 lie. At the ends of the tables facing away from the conveyor 61 23 includes a separately drivable for each table 23 Conveyor 64 in direction 11, on which in level 9th one finished stack 4 each from the associated conveyor 24 is delivered immediately in the direction of 11. By reversing direction the conveyors 64 can also move the pallets to the tables 23 passed and the conveyor 61, 62 can finish Convey stack 4 against direction 11.

After the pallet 2 is aligned on the table surface 18 4, the giant 3 is turned in the opposite direction 12 compared to your desired alignment - target alignment - offset, namely by stripping with the stop 36. They can protrude over the edge surface 8 or not and their edge surfaces 14 and 13 can against each other be staggered or not. While at the same time the sponsor 50 continues and possibly another Ries 3 on the Stop 36 has run up, the stop 34 is above the pallet 2 against direction 12 against the stop 39 driven while at the same time the slide 35 above the Pallet 2 in direction 12 against the edges 14 of this giant 3rd is driven. The slide 35 thereby aligns the giant 3 acc. Fig. 5 flush to each other and centered in the direction 12 compared to the pallet 2 in their target position by the Edges 13 like pliers against the stop 34. While The next Ries 3 can already begin in this direction the stack to be put down, being upstream lying edge on the slide 35 may lie. During the further depositing of this subsequent giant 3 becomes the Slider 35 against direction 12 at a higher speed than in the sliding movement, namely in overdrive, in his Starting position moved back while the stop 34 in contact remains with the edge surfaces 13. After the next one Ries 3 stored with the stop 36 or the Table 23 has been lowered by a height, as will also described this ream 3 with the alignment members 34, 35 acc. Fig. 5 transferred to the target position. When lowering the Table 23 slide edge surfaces 13 against stop 34.

The giant 3 can already on the conveyor 63 or 50 in Direction 11, e.g. with on the side the edge surfaces 15, 16 sliding, sloping surfaces, on which the giant 3 run under the transport force and then be moved across. The alignment members 37, 38 show such inclined surfaces for station 21. simultaneously with or after alignment in the direction of 12 the giant 3 can also only after being placed on the table 23 with the motor-driven stops or sliders 37, 38 in the direction 11 centrally with respect to pallet 2 be aligned by these links 37, 38 on each other to be moved like pliers against the edges 15, 16. The Elevation and elevation of the links 37, 38 is appropriate same as that of links 34, 35, which are in the same Height.

After the stack 4 by continuously lowering and Stacking has reached the desired stack height and all Stack layers 2, 3 aligned in the manner described the stack 4 is placed under the links 34, 35, 37, 38 lowered until level 19 coincides with level 9 and the conveyor 24 passes the stack 4 through the opening 56 to the associated conveyor 64 passes. After the last alignment the top stack layer 3 of the stack 4 is also the Stop 34 in its starting or Transferred to the stop position in which he is level with the stop 33 is so that the next pallet 2 in the described manner can be adopted.

While a pallet 2 is supplied in a station 20, a Pile of reams piled up or a stack of pallets 4 removed is, each in the other station 21 at the same time of this work. By the stop 36 the station 20 alternately in the release and stop positions can also be transferred with the conveyor 50 in each Station a pile of reams are stacked at the same time, e.g. by the giant 3 alternately in both stations 20, 21 be filed. The stop 36 is in any position completely above level 10 so that it doesn't move too be needed when all successive giants 3 of the Conveyor 50 are placed in the same station 20 or 21 should.

All mentioned movements, e.g. Conveying, lifting and Alignment processes are controlled by an electronic control controlled, which affects the associated drives and if necessary with position sensors for the movable equipment parts or the stack layers 2, 3 are connected via signal lines, so that a very safe and fully automatic operation results. All stated properties and effects can exactly or only approximately or essentially as described be provided and depending on the properties of the processed Materials also deviate more from it. The pallets 2 can also be placed on the conveyor 61 or 23 manually become. The device 1 is particularly suitable for relatively heavy stacks, their manufacture and processing more complicated than that of light weight Stacked layers, for example boxes. The bearers 51 are stiffened or supported by suitable means, that they do not bend under the weight of the giant 3 can, but remain flat between the deflections 54. she are, however, suitable for turning around the deflections 54 to bend accordingly. The length of each edge can be 13 to 16 be more than a meter or two. The lowering height of each Giant 3 from level 10 to the top of the stack is at most 10 cm or 6 cm, in particular about 4 cm.

The control means may also include means for e.g. optical Measurement of layer sizes include so that all drive means can be controlled according to the measurement result can that the alignment means each individual layer 2, 3 regardless of their size, exactly in the middle of the corresponding one Align station 20 or 21. Conveyors 23, 50, 63 as well the alignment members 31 to 39 and the drive means 40 can be formed symmetrically to that median plane be at right angles to levels 9, 10, 17, 19 and is parallel to direction 12. This allows two same or same attacks on both sides of this Middle plane on the side cheeks 57 or the trusses 59 be attached. The stop surface of the stop 34 can inclined run-up surfaces, which to the edge 13th If necessary, include the peripheral area of the sinking ream 3 and including the Ries 3 against direction 12 to Let slide 35 slide towards it. For adjusting the stops 34 or 36 or 39 of one or both stations 20, 21 can the unit 58, 59 also parallel to the direction 12 be motor-driven adjustable. Every stack layer can also consist of several in the direction 11 and / or 12 side by side lying individual layers 3, which together and same level fed on a carrier 51 and lowered become.

Claims (11)

Device for processing material layers, such as Stacking layers (3) made of paper, pallet-like base layers (2) or the like, the opposite and transverse edge surfaces (5 to 8 or 13 to 16) and define a material level (17) with a base frame (22) and a table arrangement with at least one layer table (23), the table surface (18) for stacking the material layers or the like defines a table level (19) and the possibly in the area of a stacking station (20, 21) transverse to Table level (19) is movably supported, characterized in that that alignment means (30) for precise alignment the material layers (2, 3) opposite the table surface (18) in the stacking station (20, 21) or the like are provided and possibly opposite one another Alignment members, such as alignment stops (31, 34, 35, 37, 38), at least one of which is driven Slider (35) for the material layers (2, 3) continuously can be adjustable. Device according to claim 1, characterized in that for stacking the material layers over a stack height at least one stop (34, 35, 37, 38) transverse to Table level (19) with respect to the table surface (18) approximately Movable in parallel with the change in the stack height as well as successively against different from the Table surface (18) removed stack layers (2, 3) is slidingly movable, in particular that the table (23) across the table level (19) opposite the base frame (22) and the stop (34, 35, 37, 38) can be moved is mounted and that preferably the stop (34, 35) is held in a stop bearing (44, 47), the is fixed relative to the base frame (22). Device according to claim 1 or 2, wherein the first and second layers of material (2, 3) are stacked so that they in the stack (4) in view of the material or table level (17, 19) offset first and second Form edge surfaces (7, 13 or 8, 14), characterized in that that at least one stop (34, 35) both for the first as well as for the second edge surface (7, 13 or 8, 14) and transversely to these edge surfaces from a first to a second stop position is movable that in particular the stop (34) in at least one stop position positively determined and that preferably the stop (34) is a Sliding surface for sliding displacement on the edge surfaces (7, 13). Device according to one of the preceding claims, characterized in that separate stops (36; 34, 35) for pre-alignment and final alignment of the Material layers are provided in the same direction (12 or 11) are one of which is for pre-alignment for the Material layers (2, 3) before they are supported on the table surface (18) as the table surface (18) opposite Overrun stop (36) and another than for the final alignment set back compared to the overrun stop (36) Counter stop (34) for a slide (35) it is provided that in particular the overrun stop (36) at a distance from the table surface (18) opposite feed path for the material layers (3) and the counter stop (34) closer to the table level (19) than the overrun stop (36) and that preferably the counter-stop (34) mounted on the base frame (22) in a common stop position with a table stop (33) can be transferred, which with the layer table (23) is movable transversely to the table level (19). Device according to one of the preceding claims, characterized in that at least one stop (34 to 38) on a protruding freely against the table surface (18) Stop support (46, 48) is attached and closer at the table level (19) as the connection of the stop beam with the base frame (22) is that in particular the stops (34 to 38) hanging on stop guides (44, 47, 49) of the base frame (22) are mounted and that preferably opposing stops (31; 34, 35; 37, 38) with separate stop drives (43, 45, 47) or stop guides (44, 47) can be moved are. Device according to one of the preceding claims, characterized in that the layer table (23) by a conveyor table, such as a conveyor table and compared to the base frame with a linear actuator (28) can be raised and lowered continuously, in particular the table (23) in a lower position Inclusion of the base course (2) and in a highest Position for receiving a first stacking layer (3) the base layer (2) is arranged and that preferably in the highest position the base layer (2) between the stops (34, 35; 37, 38) and in the ones below Positions the base layer (2) lower than that Stops (34, 35; 37, 38). Device according to one of the preceding claims, characterized in that for feeding the stack layers (3) on the layer table (23) a stack conveyor (50), such as one returned under the bed table (23) Perforated tape with supporting bodies (51) and between them horizontal discharge gaps (53) for the passage of the Stacked layers (3) is provided, the conveyor level (10) is approximately parallel to the table surface (18), that in particular in the conveying path of the stacking conveyor (50) the overrun stop (36) and under the conveying path of the Counter stop (34) and the slide (35) and that preferably in plan view of the table surface (18) covering stacking conveyor (50) essentially only in Area of the table (23) provided and on a separately drivable transfer conveyor (63) connected of which the stack layers (3) are immediate to the stack conveyor (50) approximately constant in level be handed over. Device according to one of the preceding claims, characterized in that for feeding the base layer (2) on the bed table (23) a conveyor (61), like one in a lifting position directly on the table (23) connected approximately on the same level Feed conveyor, it is provided that in particular Direction of conveyance (11) of the conveyor (61) or Layer table (23) approximately at right angles to about plane-parallel feed direction (12) of the overlying Stacking conveyor (50) and that preferably for Removal of the stack (4) from the table (23) Abförderer (64), such as an approximately level with the Feeder (61) and in plan view opposite Conveyor belt is provided. Device according to one of the preceding claims, characterized in that the table arrangement two Adjacent separate table surfaces (18) to choose from Inclusion of the material layers (2, 3) includes that in particular the table surfaces (18) by separately drivable Layer tables (23) are formed in the feed direction (11) of the stack layers (3) immediately one behind the other and optionally from the same stacking conveyor (50) be loaded and that preferably at least one of the assigned upstream table surface (18) Stop (36) from the path of movement of the stacking conveyor (50) conveyed stack layers (3) is movable. Process for processing material such as stacked layers made of paper, base layers (2) or the like, at which on a table surface (18) first a base layer (2 or 3) and then the stacking layers (3) stored and in each case to the base layer (2, 3) aligned offset and to a stack (4) be shaped, characterized in that the base layer (2, 3) on mutually transverse edge surfaces (5 to 8) and opposite the table surface (18) is slidingly aligned that then aligned on the Base layer (2) from a first lower stack layer at least one stack layer (3) pre-aligned stored as well as before placing a subsequent stack layer by moving it across the base layer (2) on two opposite edge surfaces (13 to 16) opposite of the base layer (2) is finished with an offset and that then the following on the bottom stack Stacked stacked and filed like that lower stacking layer, but sliding on it, done is aligned. A method according to claim 10, characterized in that the table surface (18) after laying down in advance of the respective stack position only across Table level (19) moved or lowered, then fixed and this stack layer is only then completely aligned, that in particular the stack position during the final alignment rectified or simultaneously with the feeding of the following stack position (3) is moved and that preferably the table surface (18) from dropping the first bottom stack on the base layer (2) to Removal of the finished stack (4) only lowered and is not raised.

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