HU182908B - Device for piling up flat objects particularly cards - Google Patents

Abstract

The aim and object of the invention are to provide a mixing device for flat products, in particular maps, which can work very fast. For this purpose, the mixing device consists of at least one collecting element, which is mounted in such a way that it abuts against the one end of the endless conveyor belt to collect the products to be mixed, which are supplied on the top of the conveyor belt. The collecting element in this case has a partial piece which forms a stop for this at least during collection of the products, and a partial piece which stands on the preceding partial piece and forms an angle to the direction of movement of the upper side relative to the upper side of the corresponding conveyor belt and thereby a free one End lying on a different plane than the top to cause the products, which are fed on the top of the conveyor belt, to pivot about an axis which is transverse to the direction of movement thereof.

Description

(57) EXTRAS

A shortcoming of known structures for stacking flat objects, especially card boards, is that they do not allow acceleration of the stacking operation and, secondly, assembly of the objects in a specific order.

The above shortcomings are proposed to be overcome by providing the structure with at least one assembly unit located at one end of the conveyor along the upper side of the conveyor of the endless conveyor. This assembly unit comprises at least a first part which straddles the articles while they are stacked, and another part arranged at an angle to the upper side of the conveyor, the free end of which is inclined in a plane other than the upper side of the conveyor.

-1182,908

BACKGROUND OF THE INVENTION The present invention relates to a device for stacking flat objects, in particular cardboards, which have at least one endless conveyor conveyor for the objects to be assembled.

By "conveyor track" is meant in a broad sense a track, which may be a perforated or non-perforated webbing or a belt, but also a solution in which it is formed by one or more chains.

Such structures are mainly used to stack cards on a playing card. The cut-out cards are placed in one or more rows at the top of the endless conveyor.

First, the cards in each row must be grouped. In the case of playing cards, it is also required that the stacked cards are in the same series. Known structures of this type have inclined slides which are provided with means for rotating the horizontally inserted cardboards into a vertical position. The various slides are arranged in such a way that the flipped cards are eventually placed vertically next to each other. The small packages thus formed are then fed onto a slide transverse to the slides so that the small packages follow each other vertically. In fact, the cards that are placed in the different rows are first put together, and the cards in the next rows are then added. However, the known structures, according to practical experience, have several disadvantages. Such a drawback is, for example, that these structures do not allow stacking of packages corresponding to the card set. Namely, from a continuous row of vertically collected cards, the packages corresponding to the set must be assembled by hand. A further disadvantage is that these structures can only be assembled at a limited speed. Thus, due to the slowness of the assembly operation, productivity cannot be increased and uniform working speeds achieved by cutting card boards cannot be achieved.

It is an object of the present invention to overcome the aforementioned deficiencies, i.e. to provide a stackable structure of flat objects, especially card cards, which can be assembled faster and stacked flat objects in a predetermined number and order.

SUMMARY OF THE INVENTION The object of the present invention is solved by a structure having at least one assembly unit for stacking objects fed along the upper side of the conveyor, and a first portion of the assembly assembly which collides the objects at least during stacking and it has an other part arranged at an angle with its upper side and a free end, which is in a plane other than the upper side for tilting the objects about their transverse axis about their direction of travel.

According to the invention, it is expedient to provide an assembly in which the assembly unit is provided with a clamping mechanism for retaining the assembled objects to the first part of the collision and at least temporarily to the other part.

According to the invention, it is also possible to have the two parts of the assembly unit at right angles to each other. Preferably, the other portion of the stacker assembly is inclined at least 2 relative to the upper side of the conveyor during assembly so that its free end is located above the end of the conveyor.

Preferably, the conveyor is provided with a plurality of parallel endless conveyors for a plurality of rows of articles to be assembled, and at least one assembly unit is provided at the end of each conveyor at least during assembly.

Particularly preferred is an embodiment in which the assembly unit is pivotable in the direction of one end of the conveyor, and has a unit for rotating the assembly unit to interlock with the same position relative to the end of the conveyor for assembly.

Preferably, the structure also has another endless conveyor belt, which is arranged below the assembly units and is provided with a drive unit for assembling a series of objects assembled by the assembly units.

The invention will be described in more detail with reference to the drawing, in which an exemplary embodiment of the structure of the invention is shown.

In the drawing:

Fig. 1 is a side view of a detail of the playing card card assembly of the present invention;

Figure 2 is a side view of another detail of the structure of Figure 1;

Figure 3 is a sectional view taken along line III-III in Figure 2;

FIG. Figs.

In the figures, like details are denoted by the same reference numerals.

As shown in the drawing, the assembly device of the present invention has an endless feed conveyor belt 1 having perforated suction straps 2 for the card boards to be assembled. The upper parts of the suction straps 2 run parallel to each other and horizontally. The direction of travel of these upper branches is indicated by 8 arrows in FIG. The straps 2 are carried on drums 4 at both ends of the conveyor belt 1. At the delivery end of the dosing conveyor belt 1, the drums 4 of the straps 2 are supported separately by an additional frame 5. At the other end, the drums 4 are arranged on a common shaft, which is driven by means of a motor (not shown), preferably intermittently. The highest sections of the straps 2 extend over a tubular vacuum chamber 6. The various vacuum chambers 6 are connected via flexible tubes 7 with a vacuum pump (not shown in the drawing). The vacuum chambers 6 are mounted on the respective frame 5 of the straps 2. The entire vacuum feed conveyor 1 is movably arranged vertically on the main frame (not shown). This is the case, for example, when the conveyor belt i is part of a stacking device which is connected to a discharge device which pierces the card plates 3 through the frame. This unloading device is connected to a printing press which presses the card sheets 3 in one operation from sheets. For emptying through the emptying device, the feed conveyor 1 is positioned at its highest position opposite the emptying stamp by suctioning the card plates 3 out directly with the straps 2 and keeping them in position during movement.

182,908

If the assembly assembly is connected to the printing press and the discharge device and, for example, when four sets of cards are pressed in twelve rows of eighteen cards, the conveyor belt 1 consists of twelve suction straps. For each discharge, eighteen 3 cards are collected on each of the 2 straps. These are first collected in a package and then the 12 small packages must be put together in one or more larger packages.

To this end, the assembly assembly has a three-member assembly assembly 9 at the output end of each strap 2. The assembly units 9 are pivotable about a horizontal axis transverse to the direction of travel of the straps 2. In the present case, the three assembly members 9 are fixed to a horizontal axis 10 which is coaxial with the axis of rotation of the assembly members 9. The assembly units 9 are spaced evenly along the circumference of the axis 10 in a plane perpendicular to the axis of rotation. A series of interlocking assemblies 9 for the different straps 2 have a common axis such that the axis 10 extends over the entire width below the delivery end of the dosing conveyor 1. At the ends 11 of the reduced cross-section 11, the shaft 10 is embedded in the above-mentioned main frame.

The assembly 9 consists of an elbow 13, these elbows being arranged in a longitudinal direction along the axis 10 at a distance slightly greater than the width of the strap 2. The elbows 13 are further arranged so that due to the rotation of the shaft 10 - which it is

In Figure 1, there are 12 arrows, which move on one side of the respective strap 2.

Since the elbows 13 are fixed to the same axis 10 and move together, the assembly 9 moving between two adjacent straps 2 can be combined into a single elbow. The first portion 14 of the elbow 13 of the assembly 9 is rigidly fixed to the shaft 10. The other portion 15 of the elbow 13 is perpendicular to the end of the first portion. Each of the assemblies 9 has a portion 15 of the elbow 13 in the same direction as the free end, which is the direction opposite to the direction of rotation of the shaft 10 indicated by the arrow 12. As shown in Figure 1, the arrangement of the assembling units 9 in this case resembles a three-armed Maltese cross where the parts 14 are not radially located.

From each assembly 9, the two elbows 13 extend over the sides 15 of the end of the web 2 so that the parts 15 are exactly above the top of the web end of the web 2.

The shaft 10 can be rotated intermittently by means of a motor (not shown in the drawing), whereby during assembly the part 15 of one of the elbows 13 is always in the aforementioned position.

The two elbows 13 of the assembly 9 are in the same position, so that they are over and at an angle to the end of their respective straps 2. These portions 15 extend downwardly away from the end of the strap 2. In the above-mentioned situation, when the assembly 9 is still standing to collect the card boards 3, the end of the strap 2 is at a distance from the parts 14 and 15.

Once the assembly 9 is in the desired position, the first cardboard insert 3 is in contact with portions 15 of each of the elbows 13 of the assembly 9 which holds the card assembly while the parts 14 act as stops. The portions 14 are at a distance from the end of the strap 2 less than the arrow size 8 of the card base 3 so that after the contact of the card base 3 with the portion 14, the rear end of the card base 3 is inclined above the end of the strap 2. When feeding the next 3 cards with 2 straps, it automatically slides under the first 3 cards. In this way, a series of card sheets 3 fed with a strap 2 can be collected in a small pack while the next card card is slipped under the previous card.

It will be appreciated that the two elbows 13 of the assembly 9 can only cooperate with the card plates 3 provided by the belt 2 if the card plates 3 extend beyond the belt 2 on both sides. Consequently, the strap 2 has a smaller width than the size of the cardboards 3 perpendicular to the arrow. The cards 3 are generally disposed transversely of the strap 2.

Thus, in the above manner, the card boards 3 are collected in small packages in a corner formed between the parts 14 and 15 of the assembly unit 9.

In order to prevent the pack from disintegrating upon rotation of the shaft 10 and the assembly unit, each assembly assembly 9 is also provided with a clamping device, designated 16. The clamping device has a spring plate which is fixed in the portion of the elbow 13 and is parallel to the portion 15.

When a sufficient number of cardboards 3 have been fed to each of the straps 2 and collected, the shaft is rotated in the direction of arrow 12 so that the next assembly 9 is placed in the assembly position and the next series of cardboards 3 are assembled as described above. Thanks to the clamping structure 16, the packs of the card base 3 remain in position even when turned. When the second set of assembly pieces 9 collects enough card plates 3, the shaft 10 is rotated further in the direction of the arrow 12 to bring the third set of assembly pieces 9 into contact with the release end of the straps 2.

A second conveyor 17 is arranged beneath the assembly units 9. The conveyor 17 has a pair of endless chains 18 for each of the straps 2 of the conveyor belt 1, between which are small boxes consisting of a bottom plate 20 and two side panels 21. The side panels 21 are arranged perpendicular to the endless chains 18 of the conveyor 17. The boxes 20 and 21 are connected to the chains 18 via the hinges 19 on the bottom plates 20. Each pair of endless chains 18 is carried at both ends of the conveyor 17 on a sprocket 22. The sprockets 22 are rigidly fixed to the shaft 24 by means of retaining rings 23. The shaft 24, on which at one end of the conveyor 17 all the sprockets 22 are mounted, is housed in a frame 25 at each end, which may also be formed with the aforementioned main frame supporting the shaft 10 and not shown. The axis 24 is parallel to the axis 10 at each end of the conveyor 17, in this case one of the axes 24 is located below the axis 10. The upper leg of the chains 18 moves horizontally in the same direction as the upper leg of the strap 2. The chain 18 and the direction of movement of the boxes 20, 21 mounted thereon are indicated by arrows 26 in Figures 1 and 2.

The upper leg of the endless conveyor 17 thus consists of as many rows of boxes 20, 21 as there are 2 straps 3

-3182 908 therefore each box row is located under the respective strap 2 and moves in the same direction. If the assembly assembly has twelve 2 straps, 12 rows of boxes 21, 20 should also be provided. The boxes 20, 21 of adjacent rows are positioned adjacent to each other so that they also form columns. The number of columns, i.e. the number of boxes 20, 21, can be selected as desired. During operation of the assembly device, each pivot of the shaft 10 is assembled from the assembly 9 into a box 20, 21 which is located on the upper part of the conveyor 17 below the shaft 10. During assembly, the conveyor 17 is stationary. The card pack is pushed away from the portions 15 of both elbows 13 of the assembly 9 through the side panel 21 when the assembly 9 is rotated. The lengths of the side panels 21 are approximately equal to the width of the strap 2 and fit exactly between the two elbows 13 of the assembly 9. Figures 1 and 2 show that the portion 15 of the assembly 9 is located below the uppermost edge of the side panel 21 in its lowest position. Thus, upon rotation between the axis 10 and the two stops of the assembly units during operation of the assembly device, the card packets collected in the assembly units 9 are pushed into boxes 20,21.

After each box is full of cards, the conveyor 17 is moved forward so that the next box column is in its previous position.

The card packs in each box column can be assembled by means of levers 27 which are secured to support plates 28. The supporting plates 28 are arranged parallel to the upper leg of the conveyor 17 and can alternatively be moved in a direction perpendicular to the direction 26. The support plate 28 is slidably arranged on two pins 29 perpendicular to the direction of travel. The pins 29 are fixed to the frame 25. Alternative movement of the support plate 28 can be accomplished in any manner known per se. For example, the support plate 28 may be secured to a tube connected to a rotary shaft with a sinusoidal groove. The groove cooperates with the pin through the pipe, which makes a movement as the shaft rotates.

The arms 27 are secured to the underside of the support plate 28 and are numbered equal to the number of rows of boxes 20, 21. The arms 27 are aligned in a transverse direction above the upper leg of the conveyor 17. The arms 27, when in their resting position, are adjacent to the box 20, 21, which is in the second position in the direction of movement of the boxes. Alternative movement of the support plate 28 and the arms 27 is the same as the width of the box rows. In other words, the arms 27 move the card packet from the box 20, 21 to the next box of the next row. Correspondingly, in the direction of movement of the arms 27, the boxes are provided with a groove 30, and the size of the recesses 30 receiving them is selected such that the lever 27 can also displace the lowest card base of the card stack on the bottom 20.

Since the various cards need to be stacked with the arms 27 in the correct order and one pack must lie softly on the other, the bottom 20 of the boxes 20, 21 is inclined in the direction of movement of the arms 27. In contrast, the grooves 30 are all the same in size.

When the support plate 28 and the arms 27 are moved, the conveyor 17 is always stationary. When the infinite conveyor 4 is stopped, the boxes 20, 21 are positioned at the end of the structure to collect the card packages. At the next stop, the card pack in box 20, 21 is positioned in its displaced column, which is moved by a row with the lever 27, so that it is placed on the pack contained in the box in the column of the second row.

By appropriately selecting the number and position of the arms 27, it is possible to combine packets collected in boxes 20, 21, i.e. a column thereof, into a single large packet or several smaller packets. For example, if the lever 27 is positioned between the third and fourth row of boxes, only the card packs in the boxes 20, 21 of one of the columns can be collected, which are thus located in the first four rows. Then, at the delivery end of the conveyor 17, a fourth set of four small packages from the boxes 20, 21 is obtained.

According to the cards provided with the 2 straps, the order of the cards can be determined arbitrarily. For example, this may depend on how the cards are printed, but the desired order of the cards can always be guaranteed. In operation, each card sheet fed to one of the straps is first assembled in the specified order, then the small packets of all the straps assembled in the specified order are assembled by the conveyor 17 and the arms 27.

It is to be noted that the invention is not limited to the exemplary embodiment described, and many other embodiments are contemplated within the scope of the invention.

For example, the stacking device according to the invention is suitable for stacking not only playing cards but also, for example, coasters or other flat objects.

The number of assembly units 9 does not necessarily have to be three for each suction strap. A single assembly unit is sufficient for the structure to function.

The assembly unit need not necessarily be pivotable about a horizontal axis. They may be pivotable about their vertical axis, or even need not be pivotable. In the event that the assembly units are correct, special care must be taken to ensure that the collected items are ejected from the assembly unit. Such ejection means may be, for example, a movable mandrel.

Furthermore, assembly units do not necessarily have to consist of two parts. The 15 portions of the 13 elbows may extend in other directions.

Claims (30)

. PATENT CLAIMS A device for stacking flat objects, in particular cardboards, having at least one endless conveyor conveyor (1) for attaching objects (3), characterized in that it has at least one assembly unit (9) for loading objects fed along the upper side of the conveyor. being provided at one end of the conveyor and the first part (14) of the assembly (9) which at least interferes with the objects (3) during its assembly, the other part (15) arranged at an angle to the upper side of the conveyor and located in a plane other than the upper side of the conveyor for tilting the objects (3) in the direction of travel (8) about a transverse axis. -4182 908 An embodiment of the device according to claim 1, characterized in that the assembling unit (9) has a clamping device (16) for retaining the assembled objects (3) to the first stop (14) and at least temporarily to the second part (15). provided. Embodiment according to Claim 2, characterized in that the clamping device (16) is a spring element disposed in the direction of the second part (15) on the first stop (14) of the assembly unit (9). 4. An embodiment of a device according to any one of claims 1 to 3, characterized in that the two parts (14, 15) of the assembly unit (9) are arranged at right angles to each other. 5. Embodiment according to any one of claims 1 to 5, characterized in that the other part (15) of the stacking assembly (9) is arranged at least during the stacking process relative to the upper side of the conveyor such that its free end is located above the end of the transport assembly (1). An embodiment of the device according to claim 5, characterized in that the first stop (14) of the assembly (9) is at least at a distance from the end of the conveyor (1) at least during the assembly than in the direction of travel (8). measured size. 7. Embodiment according to any one of claims 1 to 4, characterized in that the conveyor belt (1) has a plurality of parallel endless conveyors for a plurality of rows of articles (3) to be assembled, and at least at the end of each conveyor being assembled. 8. An embodiment of a device according to any one of claims 1 to 4, characterized in that the assembly unit is pivotable in the direction of one end of the conveyor and the unit for rotating the assembly (9) intermittently to the same position relative to the end of the conveyor. Embodiment according to claim 7 or 8, characterized in that the assembling units (9) are arranged on a single common axis (10). 10. A 8-9. Embodiment according to any one of claims 1 to 4, characterized in that the assembly (9) is pivotable at 360 °. 11, pp. 8-10. Embodiment according to any one of claims 1 to 6, characterized in that the assembly unit (9) is pivotable about a horizontal axis which is perpendicular to the direction of travel (8) of the conveyor upper branch. Embodiment according to any one of claims 1 to 11, characterized in that the first part (14) and the other part (15) of the assembly unit (9) are made up of two elements which are spaced apart at the end of the conveyor (2). spaced apart and the width of the end of the conveyor is smaller than the width of the objects (3) in this direction, the ends of the objects (3) extending on both sides of the end of the conveyor cooperate with the two elements. Embodiment according to claim 8 or 12, characterized in that each assembly unit (9) has two L-shaped elbows (13) arranged on a common axis (10), wherein an elbow (13) has two forming part of an adjacent assembly (9). 14. An embodiment of a device according to any one of claims 1 to 5, characterized in that the object assembled with the assembly unit (9) is removed therefrom. 15. An embodiment of a device according to claim 8, 12, or 14, characterized in that the removal unit is formed as a stop which fits between its elements during intermittent rotation of the split assembly (9). 16. A 8-11. An embodiment of a device according to any one of claims 1 to 6, characterized in that each conveyor is associated with a plurality of assembly units (9), which are pivotally arranged about a common axis, and the assembly units (9) are provided with a turning unit. Embodiment according to claim 7 or 8, characterized in that the assembling units (9) for the different conveyors are arranged on a common shaft (10) and are provided with a common turning unit. 18. Figures 1-17. An embodiment of the device according to any one of claims 1 to 6, characterized in that it also has a second endless conveyor (17) which is arranged below the assembly units (9) and assembled to drive a series of objects (3) collected by the assembly units (9). Embodiment according to claim 18, characterized in that the second endless conveying device (17) has protruding side panels (21) which surround the compartments which receive a series of objects (3). 20. An embodiment of the device according to claim 14 or 19, characterized in that the drive unit of the second conveying device (17) is designed as a unit capable of driving a series of objects collected by the assembly unit into the same section. An embodiment of the device according to claim 19 or 20, characterized in that the second conveying device (17) has a bottom plate (20) between the two side panels (21) of which the compartments are formed as boxes. 22. An embodiment of the device according to claim 7 or 19, characterized in that the second conveyor (17) is arranged below the assembly units (9), wherein the upper leg of the second conveyor (17) is the upper leg of the conveyors (2). the second conveyor (17) is provided with a compartment for each conveyor, and the compartments are successively disposed below the assembling units (9) cooperating with the conveyors. Embodiment according to claim 22, characterized in that the compartments are open laterally with respect to the direction of movement (26) and at least one arm (27) of the assembly units (9) and this compartment is used to assemble objects collected in successive compartments of different rows. it has a unit which can move transversely to its direction of travel (26). Embodiment according to Claim 21 or 23, characterized in that the side panels (21) of the compartments are provided with a transverse groove (30) in the direction of travel (26) which allows the lower end of the arm to be moved. formed. An embodiment of the device according to claim 24, characterized in that the bottom plates (20) of the compartments are inclined in one direction transverse to the direction of travel (26). -5182 908 26. A 23-25. An embodiment of a device according to any one of claims 1 to 6, characterized in that it has a plurality of arms (27) and the arm drive unit is designed as a unit capable of releasing all arms (27) at a distance equal to the width of the compartment wherein at least a portion of the side panels (21) of compartments adjacent to the direction of movement (26) comprise a lever (27) and two adjacent columns between the transverse columns, the arm being movable through a series of directional compartments (26). 27. Figures 15 or 19-26. Embodiment according to any one of claims 1 to 4, characterized in that the stopper for removing the objects (3) collected by the assembly unit from the assembly unit (9) is formed as a side panel (21) of the compartment. 28. Embodiment according to any one of claims 1 to 6, characterized in that the conveyor is designed as a perforated suction strap (2) arranged guided above a vacuum chamber (6) and having a vacuum holding unit (5) in the vacuum chamber (6). 29. 1-28. An embodiment of the device according to any one of claims 1 to 3, characterized in that the feed conveyor (1) also has an assembly (9) serving as a discharge device, which is a printing press. The dispensing conveyor (1) is arranged to assemble objects pressed from the sheet (3) and to convey them to the frame (5) by means of a discharge device. The structure of claim 28 or 29 15, characterized in that the conveyor belt (1) is arranged vertically movable and that its upper branch is in the highest position in relation to the discharge stamp when the discharge device is moved. Figure 3 Figure 4 -6182908 Β 42 F 17/00; G 65 Η 29 / OC ² PJZ ³ {1 -ZL 15. 4