JP3099028B2 - Apparatus for unloading stacked sheet-like articles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a stacked body obtained by stacking block-shaped articles such as a punching blank for paper container and paperboard paper into a block, and stacking the blocks in a plurality of stages via spacers. The present invention relates to an apparatus for unloading the block from the above.

(Prior Art) For example, a punching blank for a paper container, which has been printed and punched by a printing punching machine, is supplied to a sack pasting machine and formed into a paper container. It is laminated.

In this case, if the number of stacked blanks is too large, the blanks may collapse during transportation or the like. Therefore, first, a certain number of blanks are stacked to form a block, and the blocks are stacked into a plurality of layers via spacers to form a laminate.

Conventionally, the work of unloading blocks from the laminate has been performed manually.

(Problems to be Solved by the Invention) However, the blocks constituting the laminated body are large in weight and huge in number per work place, and it takes a very large amount of labor and a large number of labor to manually load the blocks. Therefore, labor saving is desired.

Therefore, an object of the present invention is to provide an unloading device that can contribute to automation of an unloading operation of blocks from such a laminate.

(Means for Solving the Problems) The present invention is an apparatus for stacking sheet-like articles into blocks, stacking the blocks in a plurality of stages via spacers to form a laminate, and stacking the blocks. ,
A loading means for loading the laminate to a block loading / unloading position, and a block loading / unloading means comprising: an engaging member detachable from a top layer block of the laminate, and a loading / unloading block from the laminate by the engaging body. A stacking means for unloading the unloaded block from the unloading position, and a spacer collecting means for unloading the uppermost spacer of the laminate from the unloading position, and the engaging member is detachably attached to the side surface of the block. In order to perform the loading / unloading operation of the block by pushing the block in the lateral direction by the engaging body, a drive mechanism for moving the engaging body in the lateral direction is provided, and the coefficient of friction between the spacer and the block can be reduced. As described above, the compressed air can be blown out from the upper surface of the spacer.

It is preferable that a plurality of blocks of each layer of the laminate are provided, and a gap is formed between the blocks of each layer in the lateral direction so that the engaging body can be guided to the side of the block.

(Operation) According to the configuration of the present invention, the laminate is carried into the loading / unloading position of the block by the carrying-in means. In this loading / unloading position, the block at the top of the stack is unloaded from the stack to the unloading means by the engaging member of the block unloading means. The unloaded block is unloaded from the unloading position by the unloading means.

Then, when the block in the uppermost layer is unloaded, the spacer that has become the uppermost layer of the stack is unloaded from the unloading position by the spacer collecting means.

By repeating the above operation, blocks are sequentially loaded from the upper layer of the laminate.

The loading / unloading operation of the loading / unloading means is performed by moving the engagement body in the lateral direction by the driving mechanism. In this case, the blocks are pushed and unloaded by the engaging body in the lateral direction. At this time, since the compressed air is blown out from the upper surface of the spacer, the coefficient of friction between the spacer and the block can be reduced.

By forming a plurality of blocks of each layer of the laminated body and forming a space for guiding the engaging body between the blocks of each layer in the lateral direction, the engaging body can be easily engaged with the block of each layer.

 Hereinafter, comparative examples of the present invention will be described with reference to the drawings.

FIG. 1 shows an unloading device 1 according to a comparative example, in which punching blanks for paper containers are stacked to form a block 2, and the blocks 2 are stacked in a plurality of stages via spacers 3 to form a laminate 4. From the block 2.

The punched blanks are printed by a gravure printing machine (not shown) or the like, punched by a punching machine, a cutting machine, or the like, and then stacked to form a laminate 4.

In this comparative example, four blocks 2 are arranged in two rows in each layer of the laminate 4 and are stacked in two layers.
The number of blocks in each layer and the number of stacked layers are not particularly limited.

In the present comparative example, the stacked body 4 is stacked on the pallet 5 and carried into the unloading device 1, but the pallet 5 is not essential.

Then, the block 2 unloaded from the laminate 4 and carried out by the unloading device 1 is supplied to the next step of the sack sticking machine (not shown). Molded.

The unloading device 1 includes a main body frame 6, a loading means 7 for loading the stacked body 4 at a central loading / unloading position of the main body frame 6, and a loading means 8 for transporting the block 2 from the loading / unloading position. (Hereinafter, in the comparative example, the loading / unloading direction is defined as the X direction, and the horizontal direction orthogonal to the X direction is defined as the Y direction).

In addition, the stacking device 1 includes the uppermost block 2 of the stack 4.
And a spacer collecting means 10 for unloading the uppermost spacer 3 of the stacked body 4 from the loading / unloading position.

The main body frame 6 is configured by supporting a frame 12 with a plurality of columns 11.

The carrying-in means 7 is constituted by a carrying-in belt conveyor 14 which is driven to rotate between a pair of side walls 13.

In this comparative example, the local table 15 is provided at the unloading position. The roller table 15 has a plurality of rotationally driven rollers 16 on its upper surface, and the rollers 16 support the pallet 5 so that it can be transported in the X direction.

In addition, the roller table 15 can be driven up and down via a link mechanism 17, and a pallet collection belt conveyor 18 is provided below the carry-in belt conveyor 14 in order to collect the pallets 5 from the lowered roller table 15. Have been.

The carrying-out means 8 is constituted by a carrying-out belt conveyor 20 between the pair of side walls 19. The block 2 carried out by the carrying-out belt conveyor 20 is supplied to a sack sticking machine (not shown).

The block loading / unloading means 9 has an engaging body 21 and a drive mechanism 22 for driving the engaging body in X, Y and vertical directions.

As shown in FIG. 2, the engagement body 21 includes a pair of opposed side plates 23, a connection plate 24 at the upper end of the both side plates 23, and a claw 25 attached to a lower end of each side plate 23. I have. The opposing distance between the two side plates 23 is made larger than the width of the block 2,
The claw 25 is swingably driven via a cam or the like (not shown). In this comparative example, a fluid pressure cylinder is built in the connecting plate 24, and both side plates are connected via telescopic rods of the fluid pressure cylinder.
23 are installed. Thereby, the facing distance between the side plates 23 is made variable in the Y direction, and the blocks 2 can be aligned with the side plates 23 interposed therebetween.

Further, the spacer 3 is a so-called corrugated plate formed so that the front and back surfaces thereof have an uneven surface, and a groove-like concave portion 26 is formed between the block 2 and the spacer 3.

Thereby, as shown in FIG. 2, in a state where the engagement body 21 covers one of the uppermost blocks 2 of the laminate 4,
By swinging the claw 25 from the state of FIG. 2 to the state of FIG. 3, the claw 25 is guided from the recess 26 of the spacer 3 to below the bottom surface of the block 2. At this time, the side plate 23 has a comb-like shape in a side view so that the side plate 23 of the engagement body 21 does not interfere with the convex portion of the spacer 3.

Thereafter, when the engaging body 21 is lifted by the drive mechanism 22, the block 2 is lifted by the engaging body 21, and
The block 21 is conveyed to a position above the carry-out belt conveyor 20 by the drive mechanism 22 and its claw 25 is swung to release the engagement with the block 2, so that the block 2 is stacked on the carry-out belt conveyor 20. Get down.

The drive mechanism 22 includes an X-direction moving body 30 in this comparative example,
And a Y-direction moving body 31. The X direction moving body 30
Is mounted on a pair of X-direction guide rods 32 bridged over the main body frame 6 and guided in the X direction. Further, an X-direction feed screw 33 is hung over the main body frame 6, and a feed nut 34 screwed to the X-direction feed screw 33 is attached to the X-direction moving body 30, and the X-direction feed screw 33 is driven to rotate. motor
35 is attached to the body frame 6.

The Y-direction moving body 31 is disposed in a notch 36 at the center of the X-direction moving body 30, is attached to a pair of Y-direction guide rods 37 bridged over the X-direction moving body 30, and is guided in the Y direction. You. Further, a Y-direction feed screw 38 is bridged over the X-direction moving body 30, and a feed nut screwed into the Y-direction feed screw 38.
39 is attached to the Y-direction moving body 31, and this Y-direction feed screw
A motor 40 for rotating and driving the 38 is attached to the X-direction moving body 30.

Further, a fluid pressure cylinder 41 that is vertically expandable and contractible is attached to the Y-direction moving body 31, and the engaging body 21 is attached to a telescopic rod 42 of the fluid pressure cylinder 41. As a result, the engaging body 21 is driven in the X direction by the movement of the X direction moving body 30, in the Y direction by the movement of the Y direction moving body 31, and in the vertical direction by the expansion and contraction of the fluid pressure cylinder 41.

The spacer collecting means 10 includes a pair of vertically expandable and contractible fluid pressure cylinders 42 attached to the Y-direction moving body 31.
And a suction pad 43 attached to a telescopic rod of each fluid pressure cylinder 42. The suction pad 43 is connected to a vacuum pump (not shown).

As a result, the suction pad 43 is
Is lowered, the uppermost spacer 3 of the stacked body 4 can be adsorbed. After that, the suction pad 43 is moved by the drive mechanism 22 so that the spacer 3 is
, And further conveyed to a collection table 44 above the carry-in belt conveyor 14, where the suction by the suction pad 43 is released. The collection table 44 is attached to the main frame 6 via a bracket 45.

The transport of the spacer 3 by the spacer collecting means 10 is not limited to the one using the suction pad 43, and for example, the spacer 3
May be conveyed to the bottom surface of the device through a hook that is detachable.

The unloading lamination 1 is driven and controlled by a control device (not shown) together with a sack sticking machine and the like. Hereinafter, the operation of the above configuration will be described.

First, the pallet 5 on which the laminates 4 are stacked is loaded on the carrying-in belt conveyor 14. This loading can be performed by a forklift, an automatic guided vehicle, etc.
The pallet 5 may be directly loaded by a belt conveyor 14 from a laminating apparatus that forms the laminated body 4 by laminating.

Next, the pallet 5 on which the laminates 4 are stacked is conveyed in the X direction by the carry-in belt conveyor 14, and is re-mounted on the roller table 15 at the loading / unloading position. At this time, the rotation of the roller 16 of the roller table 15 assists in the replacement, and stops when the stacked body 4 is positioned at a certain position.

The positioning of the laminate 4 in the X direction is appropriately performed, for example, by providing a position detection sensor for the pallet 5 or the like.

The arrangement of the stacked body 4 with respect to the pallet 5, the arrangement of the blocks 2 and the spacers 3 of the stacked body 4 itself, and the number of loading stages are determined in advance before being carried in by the carrying-in belt conveyor 14.
Alternatively, before loading / unloading by the block loading / unloading means 9, a sensor for detecting their arrangement and an actuator for aligning them at a predetermined position may be appropriately provided. In this comparative example, the side surface of the block 2 of each layer of the laminated body 4 extends substantially in the XY direction, and an interval 50 for guiding the engaging body 21 is formed between the Y directions of the blocks 2 of each layer. The longitudinal direction of the concave portion 26 of the spacer 3 is set along the Y direction.

Next, the engaging body 21 having the claw 26 swinging along the Y direction
Is moved by the drive mechanism 22 to cover one block 2 in the uppermost layer as shown in FIG. Then, the claw 25 of the engagement body 21 is engaged with the bottom surface of the block 2.

Thereafter, the block 2 is lifted by the engaging body 21 and transported to the unloading belt conveyor 20, where the block 2 is lifted.
The block 2 is unloaded onto the carry-out belt conveyor 20 by releasing the engagement between the bottom surface of the block and the claw 25. The block 2 is unloaded from the unloading position by the unloading belt conveyor 20, and supplied to a sack sticking machine or the like.

In the above-described comparative example, the engaging members 21 are engaged with the blocks 2 one by one. However, the engaging members 21 may be engaged with a plurality of blocks 2 arranged in a line by increasing the dimension of the engaging members 21 in the X direction. good. Further, both side plates 23 of the engagement body 21 may be opposed to each other in the X direction.

If all the blocks 2 in the uppermost layer of the stacked body 4 are unloaded by repeating the above operation, the spacer collecting means 10
The suction pad 43 is lowered by the fluid pressure cylinder 42 to suck the spacer 3 which is the uppermost layer of the laminated body 4. Thereafter, the spacer 3 adsorbed on the suction pad 43 by the drive mechanism 22 is transported to a position above the recovery table 44, and then the spacer 3 is released from suction, whereby the spacer 3 is placed on the recovery table 44.

Next, the block 2 that has been positioned at the uppermost layer of the stacked body 4 is loaded and unloaded again in the same manner as described above.

By repeating the above operation, all the blocks 2 are loaded from the stacked body 4 and all the spacers 3 are collected. By lowering the roller table 15 and driving the rollers 16, the pallet 5 is moved to the pallet collecting belt. It is carried into the conveyor 18 and carried to a collection position (not shown).

According to the unloading device 1, the blocks 2 are sequentially unloaded from the unloading means 8 simply by placing the stacked body 4 on the unloading means 7, which contributes to automation of a process of supplying a punched blank to a sack sticking machine or the like. Can be done.

In addition, since the block loading / unloading means 9 is for loading / unloading from the laminate 4 by lifting the block 2,
It is suitable for stacking sheet-like articles such as punched blanks.

The block loading / unloading means 9 may be, for example, the one shown in FIGS.

In this, the engaging body 21 is formed by a pair of forks 51 and a connecting body 52 that connects the forks 51. This engagement body
21 is provided with a hydraulic cylinder 54 on the intermediate support 53 of the drive mechanism 22.
Is mounted to be able to move up and down freely, and its intermediate support 53 is
It is attached to a moving body 55 of the drive mechanism 22 via a fluid pressure cylinder 56 and a guide rod 57 so as to be movable up and down.

The guide rod 57 is mounted on a main body frame similar to that described above so as to be driven in the lateral direction via a feed screw 58 and a guide rod 59.

The unloading means 8 is a so-called roller conveyor in which a number of drive rollers 60 are arranged in parallel. The fork 51 of the engaging body 21 can be inserted between the rollers 60 in the radial direction.

Thereby, as shown in FIG. 4, the fork 51 of the engagement body 21 is moved from the lateral direction by the driving mechanism 22 to the recess 26 of the spacer 3.
And guided below the bottom surface of the block 2.

Thereafter, the engaging body 21 is raised by the fluid pressure cylinders 54 and 56, so that the fork 51 engages with the bottom surface of the block 2 to lift the block 2 in a cantilever manner.

Next, the engaging body 21 is laterally moved to a position above the unloading means 8 by the drive mechanism 22 and is lowered by the fluid pressure cylinders 54 and 56 so that the block 2 is placed on the rollers 60 of the unloading means 8.
Is unloaded. At this time, since the fork 51 is inserted between the rollers 60, it does not interfere with the unloading means 8.

When the block 2 is lifted in a cantilever shape, its free end bends under its own weight. However, the amount of bending differs depending on the blank material and the like, and therefore the lift amount also differs.
Therefore, both or only one of the fluid pressure cylinders 54 and 56 is used as the case may be.

When laminating sheet-like articles such as punched blanks, the spacers 3 are interposed to prevent collapse and scattering. However, according to the loading device 1, the collection of the spacers 3 can be automated. Since several spacers 3 are usually required for one laminated body, several thousand spacers 3 may be required per work place, and the effect of improving the work efficiency by automating the collection of the spacers 3 is also required. large.

Further, since the loading device 1 is applied to a device having a concave portion on the upper surface as the spacer 3, it is preferable for lifting and unloading the block 2.

Further, the loading direction of the stack 4 by the loading unit 7, the unloading direction of the block 2 by the unloading unit 8, and the driving direction of the engagement body 21 by the driving mechanism 22 are all along the X direction. Are arranged in parallel in the Y direction,
Work space can be used effectively.

In the comparative example, the collection position of the spacer 3 is set above the loading means 7, and the loading means 7, the unloading means 8, the block unloading means 9, and the spacer collection means 10 are arranged in the X direction.
Are overlapped with each other, which is preferable in effective use of the work space.

Further, in the unloading device 1, the driving mechanism 22 drives the engagement body 21 also in the Y direction, so that a plurality of blocks 2 can be stacked in the Y direction for each layer of the stacked body 4,
This is preferable for efficient lamination.

Next, the unloading device 1 of the embodiment will be described with reference to FIG. As in the comparative example, the unloading apparatus 1 of this embodiment stacks sheet-like articles such as punched blanks for paper containers into blocks 2, and stacks the blocks 2 in a plurality of stages via spacers 3 to form a stack 4. From this, the block 2 is loaded.

The unloading device 1 includes a main body frame 6, a loading unit 7 for loading the stacked body 4 to the unloading position, and an unloading unit 8 for unloading the block 2 from the unloading position (hereinafter, in the embodiments, in the embodiment). The carry-in direction is the X direction, and the carry-out direction orthogonal to the X direction is the Y direction.)

The unloading device 1 includes a block unloading unit 9 configured to unload the uppermost block 2 of the stacked body 4 to the unloading unit 8;
A spacer collecting means 10 is provided for unloading the uppermost spacer 3 of the stacked body 4 from the unloading position.

The main body frame 6 is configured by supporting a frame 12 with a plurality of columns 11.

The carrying-in means 7 is constituted by a carrying-in belt conveyor 14 between a pair of side walls 13.

In this comparative example, a roller table 15 is provided at the unloading position. The roller table 15 has a plurality of rotationally driven rollers 16 on its upper surface, and the rollers 16 support the pallet 5 so that it can be transported in the X direction.

Further, the roller table 15 can be driven to move up and down via a link mechanism 17. In order to collect the pallet 5 from the lowered roller table 15, the roller table 15 is located below the carrying belt conveyor 14 between the side walls 13 of the carrying means 7. In addition, a pallet collection belt conveyor 18 is provided so as to be freely rotatable.

A compressed air supply device 70 is provided beside the roller table 15. This is because the spacer 3 is formed by a so-called air table.

That is, as schematically shown in FIG. 7, the spacer 3 has a plurality of ball-shaped rolling elements 65 inside its hollow, and a plurality of openings 67 opened and closed by the rolling elements 65 are formed on the upper surface of the spacer 3. A spring 66 is provided to bias the rolling element 65 so as to protrude from the opening 67. A compressed air supply port 68 is formed on the upper surface of the spacer 3.

As a result, when the block 2 is placed on the upper surface of the spacer 3, the rolling element 65 is immersed in the spacer 3 to open the opening 67, and compressed air is blown out of the opening 67, so that the friction between the spacer 3 and the block 2 is increased. The coefficient is reduced, and the unloading of the block 2 is facilitated.

In the compressed air supply device 70, a fluid pressure cylinder 72 is mounted on a support base 71, and an air supply nozzle 73 is mounted on a telescopic rod of the fluid pressure cylinder 72, and the air supply nozzle 73 is connected to a blower 74 by a hose. Are connected through the. Thus, the air supply nozzle 73 is extended in the Y direction by the fluid pressure cylinder 72, so that the air supply nozzle 73 is connected to the supply port 68 of the spacer 3 at the unloading position.

The unloading means 8 has a conveyor belt 20 shown in FIG. 8 and FIG.
Is carried out in the Y direction.

The unloading means 8 has an intake belt 75 orthogonal to the unloading conveyor belt 20. This intake belt 75
In a space 20b formed by denting a part of the carry-out conveyor belt 20 with the roller 20a, the fluid-conveying belt 20c can be driven up and down by the fluid pressure cylinder 20c to a vertical position. The block 2 loaded and unloaded from the laminate 4 is conveyed and taken in the X direction by being driven to rotate at a position above the belt 20, and then the block 2 taken down by being lowered is put on the conveyor belt 20 for unloading. Place it on a mounting surface.

A belt conveyor 76 for transporting the blocks 2 in the Y direction is provided adjacent to the carrying-out means 8. Adjacent to the belt conveyor 76, there is provided a conveyor belt 77 for conveying the blocks 2 carried in from the belt conveyor 76 in the X direction. A take-up belt 78, which is vertically movable and similar to the take-up belt 75, is provided so as to be orthogonal to the conveyor belt 77, and assists in carrying the block 2 from the belt conveyor 76 into the conveyor belt 77 in the Y direction. I do.

Then, the blocks 2 are supplied from a conveyor belt 77 to a sack sticking machine or the like (not shown) via a block direction converting means 80. Since the direction of the blanking blank for the sack pasting machine or the like needs to be a fixed direction, the block direction changing means 80 needs
This is for keeping the XY and the vertical direction constant.

It is also conceivable to keep the direction of the block 2 constant before loading on the unloading device 1, but depending on the type of paper container, there may be a case where a blanking blanking process is required before loading on the unloading device 1. . For example, a paper container has a window,
In the case where the window is covered with a sheet, a step of attaching the sheet to the blank is required. When such a step is entered, it is reasonable that the direction of the block 2 is set to a fixed direction after the block 2 is unloaded.

The block direction changing means 80 includes a monitor camera 81 disposed above the belt conveyor 77, and a conveyor belt.
An XY direction converter 82 adjacent to 77 and a vertical direction converter 83 are provided.

The monitor camera 81 detects whether or not the block 2 is in a fixed direction in the XY and vertical directions.

The XY direction conversion body 82 has a cross base conversion base 85 mounted on a base 84 so that it can be driven up and down and can be driven to rotate around the vertical axis. Have been. The base 84 is provided with four belt conveyors 86 so as to surround the conversion base 85. The belt conveyor 86 is driven to rotate and conveys the block 2 carried in from the conveyor belt 77 to the up-down converter 83. In addition, the upper surface of the conversion base 85 is positioned below the upper surface of the belt conveyor 86 in the lowered state, and is set in the raised state.
86 below the top surface.

Accordingly, when the XY direction of the block 2 is not a fixed direction, when the block 2 is carried into the belt conveyor 86, the conversion base is obtained by the detection signal from the monitor camera 81.
85 rises and block 2 is lifted. Then, by rotating the conversion base 85, the XY direction of the block 2 can be indexed in a predetermined direction.

The vertical direction conversion body 83 is configured by mounting a vertical reversing frame 89 on a pair of columns 88 provided on a carriage 87 so as to be rotatable by 180 ° around a Y-direction axis 90. The carriage 87 is reciprocally driven in the Y direction, and a belt conveyor 91 is provided on the carriage 87 in parallel with the upside down frame 89.

The vertically inverted frame 89 has a U-shape when viewed in the Y direction, into which the block 2 can be inserted, and cutouts 92 and 93 are formed in its upper and lower walls. A belt conveyor 94 is provided between the notches 92 on the lower side in the illustrated state of the vertically inverted frame 89, and a belt conveyor 95 is provided between the notches 93 on the lower side when the inverted frame 89 is rotated by 180 ° from the illustrated state. Are provided respectively.

Accordingly, when the vertical direction of the block 2 is not a fixed direction, after the block 2 is inserted into the vertical reversing frame 89 by the belt conveyor 94, the vertical reversing frame 89 is driven to rotate 180 ° by a signal from the monitor camera 81. Then, the vertical direction of the block 2 is reversed to be a constant direction. Thereafter, the block 2 is carried out to the adjacent belt conveyor 96 by the belt conveyor 95, and is supplied from the belt conveyor 96 to a sack sticking machine or the like.

When the vertical direction of the block 2 is a predetermined direction, the bogie 87 moves in the Y direction according to a signal from the monitor camera 81, and the block 2 is carried into the belt conveyor 91 from the belt conveyor 86, and the belt conveyor 91 It is carried out to the belt conveyor 96 as it is.

The block loading / unloading means 9 has an engaging body 21 and a drive mechanism 22 for driving the engaging body 21 in the X direction. The engaging body 21 has a plate shape and is engaged with and disengaged from the side surfaces of the pair of blocks 2 arranged in the Y direction in each layer of the laminated body 4. It is preferable that the height of the engaging body 21 is substantially equal to the height of the vertical sump block 2.

Thus, when the block 2 is engaged with the side surfaces of the pair of blocks 2 by the driving mechanism 22 and is driven in the X direction, the engaging body 21 pushes the block 2 toward the unloading means 8, and the stacking of the blocks 2 is performed. Unloading from the body 4 to the unloading means 8 can be performed.

The driving mechanism 22 includes an X-direction moving body 30 in the present comparative example, and is attached to a pair of X-direction guide rods 32 bridged over the main body frame 6 and guided in the X direction. Further, an X-direction feed screw 33 is hung over the main body frame 6, and a feed nut 34 screwed to the X-direction feed screw 33 is attached to the X-direction moving body 30, and the X-direction feed screw 33 is driven to rotate. motor
35 is attached to the body frame 6.

Further, a fluid pressure cylinder 41 which is vertically expandable and contractible is attached to the Y-direction moving body 31, and the engaging body 21 is attached to a telescopic rod 42 of this fluid pressure cylinder.

As a result, the engaging body 21 is driven in the X direction by the movement of the X direction moving body 30 and in the up and down direction by the expansion and contraction of the fluid pressure cylinder 41.

The spacer collecting means 10 includes a vertically expandable and contractable fluid pressure cylinder 42 attached to the Y-direction moving body 31, and a pair of guide rods 97 on the telescopic rod of the fluid pressure cylinder 42.
, And a suction pad 43 attached thereto.

As a result, the uppermost spacer 3 of the stacked body 4 can be sucked by the suction pad 43 lowered by the fluid pressure cylinder 42, and then the suction pad 43 is moved to the drive mechanism 22.
The spacer 3 is carried out of the stacked body 4 by moving the spacer 3. In the present comparative example, the collection position of the spacer 3 is set above the carry-in belt conveyor 14 in the main body frame 6, and the collection base 44 of the spacer 3 is attached to the main body frame 6.

The unloading device 1 is driven and controlled by a control device (not shown) together with a sack sticking machine and the like.

 Hereinafter, the operation of the above configuration will be described.

First, the pallet 5 on which the stacked body 4 is placed is transported in the X direction by the loading belt conveyor 14, and the roller table 15
Put it on top. At this time, the roller 16 of the roller table 15
The rotation is driven to assist the transfer, and the laminate 4
Is stopped when is positioned at a fixed position.

The positioning of the laminate 4 in the X direction is appropriately performed, for example, by providing a position detection sensor for the pallet 5 or the like.

The arrangement of the stacked body 4 with respect to the pallet 5, the arrangement of the blocks 2 and the spacers 3 of the stacked body 4 itself, and the number of stacked layers are determined in advance before being carried in by the carrying-in belt conveyor 14. In this comparative example, the laminated body 4 has two layers, and four blocks 2 are arranged in two rows in each layer, and the side surfaces thereof extend substantially in the XY direction, and the engaging body 21 is provided between the blocks 2 in the X direction. An interval 50 leading to the side of the block 2 is formed.

Next, by the drive mechanism 22 of the block loading / unloading means 9,
The engaging body 21 is lowered into the space 50 between the blocks 2 and guided to the side of the pair of blocks 2.

Then, by driving the engagement body 21 in the X direction,
The blocks 2 are engaged with the side surfaces of the pair of blocks 2, and the blocks 2 are pushed in the X direction, whereby the blocks 2 are unloaded from the stacked body 4.

At this time, the compressed air supply device 70 supplies compressed air to the inside of the spacer 3 on which the uppermost block 2 is placed.
Then, the rolling element 65 protruding from the upper surface of the spacer 3 is pushed down by the block 2, so that air is blown out from the opening 67 and the friction coefficient between the block 2 and the spacer 3 is reduced, and the block 2 is pushed out by the engaging body 21. Is performed smoothly. The height of the roller table 15 is adjusted by the link mechanism 17 in accordance with the height of the take-in belt 75 of the carrying-out means 8.

Then, the take-in belt 75 of the unloading means 8 conveys the block 2 extruded from the laminate 4 in the X direction.
Assist in loading and unloading to

Next, when the block 2 is unloaded onto the take-up belt 75 of the unloading means 8, the take-up belt 75 is lowered, and the block 2 is moved to the belt conveyor 76 by the unloading conveyor belt 20 of the unloading means 8. Conveyed.

The unloaded blocks 2 are carried into the conveyor belt 77 one by one by an intermittent operation of the belt conveyor 76 and an operation of taking in the conveyor belt 78.

The block 2 carried into the conveyor belt 77 is moved by the monitor camera 81 of the block direction changing means 80.
It is detected whether the XY and vertical directions are each a predetermined constant direction. Then, block 2 is moved from the conveyor belt 77.
It is carried out to the XY direction converter 82.

In the XY direction converter 82, if the XY direction is a predetermined constant direction, the block 2 is directly carried out to the vertical direction converter 83. If the XY direction is not the predetermined constant direction, the XY direction is lifted by the conversion base 85, is set to the predetermined constant direction by the rotation of the conversion base 85, is lowered, and is carried out to the vertical conversion body 83 by the belt conveyor 86. .

In the up-down converter 83, the block 2 is inserted into the upside-down frame 89 by the belt conveyor 94 if the up-down direction is not a predetermined fixed direction, and the up-down frame 89 is
It is turned upside down by rotating by 180 ° to the center, and thereafter is carried out to the belt conveyor 96 by the belt conveyor 95.

If the vertical direction of the block 2 is a predetermined constant direction, the cart 87 is moved in the Y direction, and the belt conveyor 86 is moved.
Is carried out to the belt conveyor 91, and is carried out to the belt conveyor 96 as it is by the belt conveyor 91.

Then, the blocks 2 are supplied from a belt conveyor 96 to a sack sticking machine or the like.

When all the blocks 2 in the uppermost layer of the stacked body 4 are unloaded, the suction pad 43 of the spacer collecting means 10 is lowered by the fluid pressure cylinder 42 to suck the spacer 3 which is the uppermost layer of the stacked body 4. Then, the spacer 3 sucked by the drive mechanism 22 is transported to a position above the collection table 44, and then the suction of the spacer 3 is released to place the spacer 3 on the collection table 44.

Next, the blocks 2 that are positioned at the uppermost layer of the stacked body 4 are sequentially loaded and unloaded again in the same manner as described above.

By repeating the above operation, all the blocks 2 are loaded from the stacked body 4 and all the spacers 3 are collected. By lowering the roller table 15 and driving the rollers 16, the pallet 5 is moved to the pallet collecting belt. It is carried into the conveyor 18 and carried to a collection position (not shown).

According to the unloading device 1 of the above embodiment, similarly to the unloading device 1 of the comparative example, the unloading of the blocks 2 from the laminate 4 can be automated. Further, labor saving can be achieved by automating the collection of the spacers 3.

Since the block loading / unloading means 9 is for loading / unloading the block 2 by pressing the block 2 with the engaging body 21, the structure of the engaging body 21 itself and the structure of the drive mechanism 22 are simpler than the block loading / unloading means 9 of the comparative example. Be transformed into Further, even if the position of the block 2 at the loading / unloading position is somewhat uneven, the block 2 can be loaded / unloaded only by pushing in the X direction by the engaging body 21, so that the stacking accuracy of the stacked body 4 and the loading belt conveyor 14 can be improved.
The loading accuracy and the like can be made rougher than those of the comparative example.
At this time, since the space 50 is formed, the engaging body 21 can be guided to the side surface of the block 2.

When the blocks 2 are stacked with an interval 50 along the Y direction as in the embodiment, the blocks 2 may be pushed and stacked in the Y direction. Function as a space for preventing interference with adjacent blocks 2.

In addition, by using a spacer having a means for changing the coefficient of friction with the block 2 as described above,
The loading and unloading of the block 2 can be performed smoothly and reliably.

In addition, a resin plate having a small friction coefficient may be used as the spacer 3, and the material of the spacer 3 is not particularly limited as long as the surface itself of the punched blank has a small friction coefficient.

Note that the present invention is not limited to the above-described embodiment. For example, the carrying-in / out means may be any as long as it can transport the laminate.

The loading / unloading means may be any as long as it is capable of loading / unloading the uppermost block of the laminate.

Further, even when the engaging body 21 is engaged with the side surface of the block 2 and pushed and unloaded, the engaging body 21 is engaged with only one side surface of the pair of blocks 2 arranged in parallel, and the other block 2 is By pushing through a pair of blocks 2
May be pushed together.

Further, an interval 50 for guiding the engagement body 21 between the blocks 2 is provided.
Is not essential. For example, according to the block loading / unloading means 9 shown in FIGS.
Can be engaged with the bottom surface of

(Effect of the Invention) The unloading device according to the present invention can unload a block on which sheet-like articles are stacked from a laminated body obtained by stacking the blocks via a spacer without manual operation by a human. The collection can be performed without human manual work, which contributes to labor saving and automation of the unloading operation. In addition, it is possible to effectively use the work space.

In addition, since the engaging body of the loading device is engaged with and disengaged from the side surface of the block, the block can be loaded / unloaded from the laminate simply by pushing the block in the lateral direction, and the driving mechanism of the engaging body is simplified. At this time, the compressed air is blown out from the upper surface of the spacer to reduce the coefficient of friction between the spacer and the block, thereby facilitating the loading of the block and preventing the stack from collapsing.

Further, when a plurality of blocks of each layer of the laminated body are provided, a space for guiding the engaging body is formed between the blocks of each layer in the lateral direction, so that the blocks can be easily loaded by the engaging body.

[Brief description of the drawings]

FIG. 1 is a perspective view of an unloading device according to a comparative example of the present invention, and FIG.
FIG. 3 and FIG. 3 are cross-sectional views for explaining the configuration of the engaging body of the comparative example, FIG. 4 is a front view showing a schematic configuration of the loading / unloading means according to another comparative example, FIG. 5 is a side view of FIG. FIG. 6 is a perspective view of the loading device according to the embodiment, FIG. 7 is a sectional view for explaining the configuration of the spacer of the embodiment, FIG. 8 is a plan view for explaining the configuration of the conveyor belt of the embodiment, and FIG. FIG. 9 is a side view of FIG. 8. 1 ... loading device, 2 ... block, 3 ... spacer,
4 laminated body, 7 loading means, 8 unloading means, 9
... Block loading / unloading means, 10 ... Spacer collecting means, 21
... engagement body, 22 ... drive mechanism, 26 ... recess, 50 ... interval.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuya Takano 2-7-131 Kukuchi Nishimachi, Amagasaki-shi, Hyogo Fukuishi Giken Co., Ltd. (56) References JP-A-60-56728 (JP, A) JP-A-63 −288888 (JP, A) JP 2-17451 (JP, B2)

Claims (2)

(57) [Claims] 1. A device for stacking sheet-like articles into blocks, stacking the blocks in a plurality of stages via spacers to form a laminate, and stacking the blocks.
A loading means for loading the laminate to a block loading / unloading position, and a block loading / unloading means comprising: an engaging member detachable from a top layer block of the laminate, and a loading / unloading block from the laminate by the engaging body. A stacking means for unloading the unloaded block from the unloading position, and a spacer collecting means for unloading the uppermost spacer of the laminate from the unloading position, and the engaging member is detachably attached to the side surface of the block. In order to perform the loading / unloading operation of the block by pushing the block in the lateral direction by the engaging body, a drive mechanism for moving the engaging body in the lateral direction is provided, and the coefficient of friction between the spacer and the block can be reduced. As described above, the apparatus for unloading stacked sheet-like articles is characterized in that compressed air can be blown out from the upper surface of the spacer. 2. The laminated body has a plurality of blocks of each layer, and a gap is formed between the sheets of each layer in the lateral direction so that the engaging body can be guided to the side of the block. An apparatus for unloading laminated sheet-like articles according to claim (1).