JPH0441360A - Conveyor device for laminated sheet-like article - Google Patents

Abstract

PURPOSE:To perform the drop conveyance of a laminated body into a fixed position without generating dislocation in the laminated state by performing the correction of layer dislocation and the positioning into the fixed position by a first and a second positioning bodies, and bringing each positioning body into contact with the laminated body from three directions so as to allow each positioning body to function as a guide at the drop time of the laminated body. CONSTITUTION:A laminated body 2 conveyed by a first conveyor body 69 is regulated in its movement by a first positioning body 60 so as to be positioned in the direction of conveyance performed by the first conveyor body 69. The layer dislocation in the conveyed direction of the laminated body 2 is corrected by coming in contact with the first positioning body 60. A fluid pressure cylinder 68 is operated to move the first conveyor body 69 and a second conveyor body 70 into the direction of conveyance performed by the second conveyor body 7 and to change their positions outward from below the laminated body 2 so that the laminated body 2 is conveyed by falling and fed to a delivery device 8. At this time, the first positioning body 60 and a second positioning body 63 function as guides by coming in contact with the side faces of the laminated body 2 from three directions so as to allow the laminated body 2 to fall correctly into a fixed position in relation to the delivery device 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a conveying device for a stack of sheet-like articles such as paper for folding cartons and punched blanks for folding cartons.

(Prior Art) Belt conveyors and roller conveyors are generally used to convey stacked sheet-like articles.

Belt conveyors and roller conveyors simply transport the stack horizontally, so when transferring to a different conveyor, it is necessary to arrange the conveyors horizontally in parallel, which saves space. This is not desirable in a restricted workplace.

Therefore, by making the rollers that make up the roller conveyor move in and out of the conveyance position, the stacked bodies placed thereon can be conveyed by falling, and by conveying the laminated bodies up and down using a manipulator, the conveyor can be arranged vertically. It has been proposed to make effective use of vertical space.

(Problems to be Solved by the Invention) Conventional roller conveyors capable of dropping laminates can only transport laminates in a direction perpendicular to the rotational axis of the roller. Therefore, if you try to move the laminate in the axial direction of the roller to correct positioning or misalignment of the laminate, or to drop it, there is a problem that the bottom layer sheet-like product will be scratched by the roller. .

Furthermore, the manipulator has a complicated structure and is expensive.

(Means for Solving the Problems) The present invention aims to solve the problems of the prior art described above.

The present invention is characterized by: a first conveying body capable of carrying a laminate in which sheet-like articles are stacked, in a lateral direction;
A second transport body has a roller that rotates so that the laminate can be placed and transported in a lateral direction perpendicular to the transport direction by the first transport body, and the first transport body restricts transport in one direction in the lateral direction. A first positioning body that is in contact with the side surface of the laminate, and a second positioning body that has a pair of positioning pieces that are in contact with the side surface of the laminate so as to restrict transport in both lateral directions by the second transport body. The first conveying body is configured to be able to change its position relative to the top and bottom of the second conveying body, and both conveying bodies are configured to be able to change their positions to positions where the stacked bodies placed thereon can be dropped. The main feature is that the lateral distance between the pair of positioning pieces on the body can be changed.

(Function) According to the configuration of the present invention, first, the movement of the stacked body transported by the first transport body is restricted by the first positioning body, so that positioning in the transport direction by the first transport body is performed. . At this time, the misalignment of the stack in the transport direction is corrected by coming into contact with the first positioning body.

Next, the first transport body is repositioned below the second transport body, so that the stacked body is placed on the second transport body.

In this state, the lateral spacing between both positioning pieces of the second positioning body is changed, and both positioning pieces come into contact with the laminate, whereby the laminate is positioned in the transport direction by the second transport body. At this time, the misalignment of the stack in the transport direction of the stack is
It is corrected by coming into contact with both positioning pieces. When performing this positioning, the laminate moves in the positioning direction on the second conveyor, but the rotation of the rollers of the second conveyor does not damage the sheet-like article in the lowest layer of the laminate.

Next, by changing the positions of both conveyance bodies, the stacked body is dropped and conveyed.

In addition, since the first and second positioning bodies are in contact with the side surfaces of the laminate from three sides, they serve as guides when the laminate falls.
The stacked body is dropped and conveyed to a fixed position without shifting the stacked state.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 3 shows a pre-feeder 3 that feeds a block-shaped laminate 2 of paper carton punching blanks 1 stacked one above the other into a paper carton forming sack machine.

The punching blank 1 is printed with a non-illustrated printing punching machine and punched into a predetermined shape. Each of the punched blanks 1 is stacked with the printed surface facing downward to form a laminate 2.

The pre-feeder 3 transports the laminate 2 to the sack machine after releasing the adhering state of each punched blank 1, and the plurality of punched blanks l from the laminate 2 are brought together in an adhering state to the sack machine. prevent it from being sent to

The pre-feeder 3 includes a frame 4 and a carry-in conveyor 5.
, a lifting conveyor 6, a conveyance device 7, a delivery device 8, a delivery conveyor 9, an auxiliary conveyor 18, and a stock conveyor 11.

A feeder 110 of the sack machine is arranged on the exit side of the delivery conveyor 9.

This feeder 110 includes a sack machine belt 111 and a hopper 112 above this sack machine belt 111.
It is equipped with

The carry-in conveyor 5 is a belt conveyor that sends the stack 2 to an elevating conveyor, and between the carry-in conveyor 5 and the elevating conveyor 6, there is a shutter 12 that can be raised and lowered between the solid line position and the imaginary line position. It is attached to the frame 4.

The elevating conveyor 6 is a belt conveyor that raises and lowers the stack 2 carried in from the carry-in conveyor 5 or the stock conveyor 11, and feeds the stack 2 to the conveying device 7. This lifting conveyor 6 is driven up and down by being connected to a chain 15 of a hoisting device 14 attached to the frame 4.

Further, a switch 13 for detecting the loading of the stacked body 2 onto the elevating conveyor 6, and a rising detecting switch 16 and a descending detecting switch 17 for the elevating conveyor 6 are provided.

The conveyance device 7 is configured to drop and convey the stacked product 2 sent from the elevating conveyor 6 to the delivery device 8 .

Then, the feeding device 8 punches the blank 1 from the laminate 2.
, the bottom layer of punching blank 1 is on the front side in the feeding direction (
They are shifted from each other in the delivery direction so as to be located on the left side in the figure, and are delivered to the delivery conveyor 9 in a superposed state.

The delivery conveyor 9 is used to sandwich the punched blank 1 sent out from the delivery device 8 and carry it into the sack machine feeder 110.

And the hopper 11 of the sack machine feeder 110
2, the punched blank 1 carried out from the sending conveyor 9 is supplied, and the punched blank 1 in this hopper 112 is
are supplied one by one to the sack machine body (not shown) by the rotating drive of the sack machine belt 111.

Note that the stock conveyor 11 temporarily docks the stack 2 carried in from the carry-in conveyor 5 via the auxiliary conveyor 18.

The above-mentioned transport device 7 has a pair of guide rails 51 attached to the frame 4. The guiding direction of the guide rail 51 is a first conveying body conveying direction, which is a horizontal direction that is slightly inclined downward toward the left in FIG.

A support body 52 is attached to each guide rail 51 so as to be slidable in the guide direction thereof.

A telescopic rod of a fluid pressure cylinder 53 is connected to one end of the support body 52, and the other end of this fluid pressure cylinder 53 is connected to the frame 4, and when the fluid pressure cylinder 53 expands and contracts, the support body 52 is moved to the first carrier. Move in the transport direction.

As shown in FIGS. 1 and 2, both supports 52 are connected by a pair of connecting rods 54. As shown in FIGS. This connecting rod 5
The axial direction of No. 4 is the second conveying body conveyance direction, which is the lateral direction orthogonal to the first conveying body conveying direction.

A pair of beams 55 are attached to the connecting rod 54 so as to be slidable in the second conveying body conveyance direction, and can be positioned using bolts 56 .

A first positioning body 60 is attached to this beam 55. This first positioning body 60 has a pair of rectangular plates 61, and each rectangular plate 61 is attached to the front side of the beam 55 in the first conveying body conveyance direction via a bracket 62 in plan view. This bracket 62 is attached to the beam 55 via a long hole and a bolt so that its position can be changed in the first conveying body conveyance direction. Further, the rectangular plate 61 is attached to a bracket 62 via bolts and elongated holes so that its position can be changed in the second conveying body conveyance direction.

Furthermore, a pair of movable bodies 57 are attached to each connecting rod 54 via bearings 58 so as to be movable in the second conveying body conveyance direction. This moving body 57 and the beam 55 are connected by a fluid pressure cylinder 59 that expands and contracts in the second conveying body conveyance direction.

A positioning piece 64 of a second positioning body 63 is attached to the movable body 57. That is, the second positioning body 63 has a pair of rectangular plate-shaped positioning pieces 64,
Both positioning pieces 64 are disposed opposite to each other, and the distance between the two positioning pieces 64 can be freely changed and adjusted in the second transporting body conveyance direction by adjusting the positions of the pair of beams 55 by loosening the bolts 56. This makes it possible to accommodate various laminates 2 having different dimensions in the second conveyor conveyance direction.

In addition, by expanding and contracting the fluid pressure cylinder 59, the distance between the two positioning pieces 64 can be changed in the second transporting body transporting direction.

A guide shaft 65 is attached to each positioning piece 64 so as to protrude in opposite directions. The axial direction of each guide shaft 65 is parallel to the second transport body transport direction. A carrier mounting member 67 is attached to each guide shaft 65 via a bearing 66 so as to be movable in the second carrier conveyance direction. This carrier mounting member 67 and the beam 55
and are connected to each other by a fluid pressure cylinder 68 that is expandable and retractable in the second conveying body conveying direction.

A first carrier 69 and a second carrier 70 are attached to the carrier mounting member 67 .

The first conveyor 69 is mainly composed of a pair of belt conveyors 71. Each belt conveyor 71 includes a plurality of rollers 72 arranged in parallel in the guiding direction of the guide rail 51 and rotating around an axis parallel to the connecting rod 54;
It has a belt 73 wrapped around this roller 72.

Each roller 72 is rotatably held by a roller holding member 74 via a bearing 75. A motor 76 is attached to the roller holding member 74, and the motor 76 is operatively connected to the roller 72.

As a result, the belt conveyor 71 of the first conveyor 69 is driven to rotate, and the stacked body 2 can be placed thereon and conveyed in the lateral direction parallel to the guide direction by the guide rails 51.

The roller holding member 74 is attached to the conveyor attachment member 67 so as to be swingable about an axis 77 parallel to the first conveyor conveyance direction. In addition, the roller holding member 74 includes
In order to control the swinging of the shaft 77, a cam roller 78 is attached to the frame 4, and a cam 79 is attached to the frame 4. ing. When the cam roller 78 and cam 79 are engaged, the roller 72 swings upward, and when the engagement is released, the roller 72 swings downward. The vertical movement of the roller 72 causes the first conveyance body 69 to change its vertical position.

Next, the second conveyance body 70 is mainly composed of a pair of roller rows. That is, each roller row is configured by having a plurality of rollers 80 arranged in parallel with the axial direction being the transport direction of the first transport body 69, and each of which is rotatably attached to a roller support bracket 81.

Each roller support bracket 81 is attached to the conveyor mounting member 67 via a bolt 82 and an elongated hole 83 so that its position can be changed in the conveyance direction of the second conveyor 70 .

As a result, the laminate 2 is attached to the roller 80 of the second conveyor 70.
By placing the laminate 2 on the roller 80 and pushing the laminate 2 in the lateral direction perpendicular to the conveyance direction of the first conveyor 69, the laminate 2 is moved by the roller 80.
It is conveyed in the lateral direction by the rotation of.

Also, by changing the vertical position of the first conveyor 69, the first
The conveyor 69 is vertically changed relative to the second conveyor 70 .

As shown by the imaginary line in FIG. 2, when the first conveyance body 69 is in the lower position, the stopper 84 attached to the roller holding member 74 comes into contact with the conveyance body attachment member 67 side, and the first The downward swinging of the carrier 69 is restricted.

The conveyance of the stacked body 2 by the conveyance device 7 is performed by a control device not shown. The operation will be explained below.

First, the fluid pressure cylinder 53 is contracted to bring the conveyance device 7 to the original position shown in FIG. This limit switch 85 for detecting the origin position is attached to the frame 4.

At this origin position, the cam roller 78 for vertical swing control of the first conveying body 69 engages with the cam 79, and the first conveying body 69 engages with the cam 79.
9 is a position above the second transport body 70. Further, the first conveyor 69 is located in front of the elevating conveyor 6 in the conveying direction, which is in the raised position.

As a result, the stacked body 2 placed on the elevating conveyor 6 is
Lifting conveyor 6 and belt conveyor 71 of the first conveyor 69
are conveyed by being rotationally driven, and the first conveying body 6
It will be placed on 9th. At this time, the distance between the two positioning pieces 640 facing each other is made larger than the dimension of the laminate 2 in the second conveyance body conveyance direction.

The stacked body 2 placed on the first conveyor 69 is further conveyed laterally by the first conveyor 69, and the front side surface in the conveyance direction comes into contact with the rectangular plate 61 of the first positioning body 60.

Thereby, positioning of the stacked body 2 in the transport direction by the first transport body 69 is performed. Further, if there is any stacking misalignment in the stacked body 2 in the transport direction, it is corrected.

Next, due to the expansion of the fluid pressure cylinder 53, the entire conveying device 7 is laterally moved slightly downward and to the left in FIG. This movement releases the engagement between the cam roller 78 and the cam 79,
The first transport body 69 is repositioned below the second transport body 70, and the stacked body 2 is placed on the second transport body 70.

When the conveying device 7 reaches the drop conveying position above the sending device 8, the limit switch 86 is activated and the extension of the fluid pressure cylinder 53 is stopped.

At this position, the fluid pressure cylinder 59 is actuated to reduce the lateral distance between the positioning pieces 64, and both positioning pieces 64 come into contact with the side surfaces of the stacked body 2, so that the stacked body 2 is transported by the second conveyor 70. Directional positioning is performed. Further, if there is any stacking misalignment in the stacked body 2 in the transport direction, it is corrected.

At this time, the laminate 2 moves in the direction of transport of the second transport body,
Since the roller 80 of the second conveyor 70 rotates, the punched blank 1 in the lowest layer of the laminate 2 will not be damaged.

In addition, during this positioning, the positioning piece 64 is
A projection 88 projects downward from the lower end.

Next, the fluid pressure cylinder 6B is activated, and the first conveyor 69 and the second conveyor 70 move in the direction of conveyance by the second conveyor 70, changing the position of the stacked body 2 from below to outside. Then, the laminate 2 is conveyed by dropping and is supplied to the delivery device 8.

At this time, since the first positioning body 60 and the second positioning body 63 touch the side surfaces of the laminate 2 from three sides, the first positioning body 60 and the second positioning body 63 function as guides, and the laminate 2 can be accurately dropped and conveyed to a fixed position with respect to the sending device 8.

In addition, in this embodiment, with the stacked body 2 placed on the second transport body 70, the first transport body 69 and the second transport body 70 are
Since the laminated body 2 is dropped by moving in the conveying direction of the conveying body 70, the roller 80 rotates when the second conveying body 70 moves, and the punched blank 1 of the lowest layer of the laminated body 2 is rotated. It won't hurt.

Next, when a certain amount of punched blanks 1 are fed out from the stacked body 2 supplied to the feeding device 8, the photoelectric switch 87 detects that the height of the stacked body 2 has become below a certain level. As a result, the fluid pressure cylinder 59 is activated to increase the distance between the positioning pieces 64 of the second positioning body 63, and the fluid pressure cylinder 68 is activated to increase the distance between the positioning pieces 64 of the second positioning body 63.
9 and the second conveyor 70 are placed in a position where the stacked body 2 can be placed, and the contraction of the fluid pressure cylinder 53 causes the entire conveyance device 7 to return to its origin, and the cam roller 78 and the cam 79 engage again. The first carrier 69 is located above the second carrier 70 .

By repeating the above operation, the conveying device 7 sequentially conveys the laminate 2.

In this embodiment, the individual rollers 80 constituting the second conveyor 70 are attached to the conveyor mounting member 67 via roller support brackets 81 so that their positions can be changed in the conveyance direction of the second conveyor 70. There is.

This is because, as shown in FIG. 4, the shape of the laminate 2 is
This is to allow the stacked body 2 to fall smoothly when the width of the conveyor 70 in the conveyance direction is different between the conveyance direction by the first conveyor 69 and the other side.

In other words, as shown in FIG. 5, if the rollers 80 constituting each pair of roller rows match each other in detail, when the stacked body 2 is dropped, the timing for releasing the stacked body 2 by the rollers 80 will be different. It varies depending on the roller 80 of the laminate 2.
There is a risk that the smaller width portion of the stack will fall before the larger width portion, and the falling position of the stacked body 2 may become inaccurate or the stacked state may collapse.

Therefore, as shown in FIG. 6, by adjusting the relative position of each roller 80 in the second conveying body conveyance direction, the timing for releasing the stacked body 2 by the rollers 80 when dropping the stacked body 2 is adjusted. is made the same for all rollers 80, and the stacked body 2 is more reliably dropped and transported to an accurate position in an orderly manner.

Note that the present invention is not limited to the above embodiments.

For example, in the above embodiment, the second conveyance body 70 was configured by a pair of roller rows constituted by a plurality of rollers 80, but as shown in FIG. The main structure may be composed of two rollers 89.

At this time, by forming a circumferential groove 101 in the roller 89, interference with the protrusion 88 is prevented when the laminate 2 is moved to a position where it is dropped.

In addition, when the second conveyance body 70 is mainly composed of a pair of rollers 89, the laminate 2 having a shape as shown in the fourth rIIJ
In order to more reliably carry out the drop conveyance, it is preferable to attach a guide block 90 to the positioning piece 64 so as to be able to change its position in the conveyance direction of the first conveyance body 69, as shown in FIG.

This guide plotter 90 is disposed close to the end surface that forms the boundary between the wide part and the narrow part of the laminate 2 when the positioning piece 64 comes into contact with the side surface of the laminate 2 as shown in FIG.

As a result, when the laminate 2 is conveyed by falling, the roller 8
Even if the rear side is released earlier than the front side, the stacked product 2 is guided by the guide block 90 and is more reliably dropped and conveyed to an accurate position, and the stacked product 2 is not shifted in the stacked state. will not occur.

Note that the surface of the guide plotter 90 facing the side surface of the stacked body 2 is a slope 102 that approaches the stacked body 2 as it goes forward in the conveying direction of the first conveying body 69. Thereby, even if the stacked body 2 should interfere with the guide block 90 when it is transported by the first transport body 69, the stacked body 2 can be guided in the direction perpendicular to the transport direction by the slope 102.

It goes without saying that the guide plotter 90 may be attached to the embodiments shown in FIGS. 1 and 2.

Further, in the above embodiment, the first conveyor 69 is mainly composed of a pair of belt conveyors 71, but it may be mainly composed of a pair of roller conveyors 91 as shown in FIGS. 10 and 11.

In this case, by setting the conveying direction of the first conveying body 69 to be a horizontal direction that goes slightly downward as it goes forward in the conveying direction as in the above embodiment, the stacked body 2 is conveyed by its own weight, so that the roller conveyor 91 The roller 92 constituting the roller 92 can be an idle roller that does not need to be driven.

Further, in the above embodiment, the first conveyance body 69 is changed in its vertical position, but the second conveyance body 70 may be changed in its vertical position.

Further, in the above embodiment, both positioning pieces 64 are changed in position, but only one of them may be changed in position.

Furthermore, in the embodiment described above, the entire conveying device 7 is made movable, so that it is possible to cope with the stacked body 2 having different dimensions in the conveying direction by the first conveying body 69, but the conveying device 7 is fixed. It may be of.

Further, the present invention can be applied to sheet-like articles other than the punched blank 1.

As shown in FIGS. 12 to 14, the feeding device 8 includes a belt conveyor 19 that is in contact with the lower side of the laminate 2, and a rectangular plate-shaped doctor 20 that is in contact with the front side of the laminate 2 in the feeding direction. ing.

The belt conveyor 19 includes a drive shaft 22 attached to the frame 4 via a bracket 25 and driven by a motor 21, a driven shaft 23 attached to the frame 4 via a bracket 26, and the drive shaft 22 and the driven shaft 23. The belt 24 is provided with a plurality of belts 24 that can be wrapped around the belt.

The belt 24 is capable of changing its position in the lateral direction (the axial direction of the drive shaft 22) perpendicular to the feeding direction, and is capable of conveying laminated bodies 2 of various shapes and sizes. Furthermore, the friction coefficient of the outer circumferential surface of the belt 24 is determined by the frictional force in the feeding direction that acts between the belt 24 and the punching blank 1.
It is assumed that the frictional force in the feeding direction that acts between the punched blanks l is greater than that.

In this embodiment, a pair of the doctor blades 20 are provided, and the positions of the doctor blades 20 are changeably attached to the frame 4 via positioning means (not shown) in the vertical direction, the feeding direction, and the lateral direction perpendicular to the feeding direction. Thereby, the doctor 20 can come into contact with the front side of the stacked bodies 2 of various sizes and shapes in the sending direction, and the vertical distance between the doctor 20 and the belt conveyor 19 can be adjusted.

Further, four guide rods 27 are attached to the frame 4 in a lateral direction perpendicular to the feeding direction so that their positions can be changed and adjusted by set screws 28. A bolt 29 with a vertical axis is attached to each guide rod 27 via a set screw 30 and a pedestal 31 so that its position can be changed and adjusted in the feeding direction. Each bolt 29 has a mounting block 3
2 is attached via a nut 33 so that its position can be changed and adjusted in the vertical direction.

The positioning pieces 34 of the stacked body 2 are respectively attached to the pair of attachment blocks 32 via bolts 35 and nuts 36. The pair of positioning pieces 34 contact each side surface of the stacked body 2 perpendicular to the feeding direction, thereby positioning the stacked body 2 in the lateral direction perpendicular to the feeding direction.

Furthermore, a pressing belt mechanism 37 is attached to each of the pair of attachment blocks 32.

The pressing belt mechanism 37 includes a base plate 38, a driving pulley 39 attached to the base plate 38, a pair of upper and lower driven pulleys 42, a belt 40 wound around the driving pulley 39 and the driven pulley 42, and a driving pulley 39. Pulley 39
A drive motor 41 is provided.

The belt 40 is located on the rear side of the stacked body 2 in the feeding direction and is in contact with a lower part of the side surface along the feeding direction, and is driven to rotate in the direction of the arrow in FIG. 13, that is, in the direction of pushing down the stacked body 2. be done.

Due to the rotation of the belt 40, the rear side of the stacked body 2 in contact with the belt 40 in the feeding direction is pushed down, and the rear side portion of the lowest layer punched blank 1 in the feeding direction is pressed against the upper surface of the belt 24 of the belt conveyor 19. It turns out.

According to the above-mentioned sending device 8, as shown in FIG.
When the belt conveyor 19 is driven, the belt conveyor 19
The punching blanks 1 are fed out from between the upper and lower sides of the blade and the doctor 20 in a state shifted from each other in the feeding direction so that the punching blank 1 on the lower side is located on the front side in the feeding direction.

At this time, the pressing belt mechanism 37 is driven, and the belt 40 pushes down the rear side of the stacked body 2 in the feeding direction, so that the rear side portion 1 of the lowest layer punching blank 1 in the feeding direction
a is pressed against the upper surface of the belt 24 of the belt conveyor 19.

As a result, the frictional force in the feeding direction acting between the rear portion 1a of the bottom layer punching blank 1 in the feeding direction and the belt conveyor 19 is actively increased, and the bottom layer punching The blank 1 can be reliably sent out together with the belt conveyor 19.

Next, the punched blank 1 that was the lowest layer is sent out, and the punched blank 1 that is the new lowest layer is also transferred to the rear portion 1a of the conveyor 1 in the feeding direction.
9 , the frictional force acting between the belt conveyor 19 and the belt conveyor 19 becomes large, and the belt conveyor 19 reliably sends the belt out along with the belt conveyor 19 .

By repeating this, each punched blank 1 is sent out one by one with a uniform deviation amount from each other, without being sent out in a plurality.

The sent-out punched blanks 1 are stacked again in the hopper 112 of the sack machine feeder 110 to form a laminate, but this laminate is in a loosened state with air trapped between each punched blank 1. Therefore, the close contact between the punched blanks 1 is released, and the sack machine belt 111 can reliably feed the blanks one by one into the sack machine main body. At this time, in the hopper 112, the rear end of the punched blank 1 is supported by a support piece 113 so as not to come into contact with the sack machine belt 111, and the sack machine heald 111 is attached to the bottom layer of the punched blank. The front end of 1 is in contact with the front end of 1. As a result, hopper 11
The punched blanks 1 in 2 are fed out one by one without overlapping with the upper layer punched blanks.

Further, as shown in FIG. 15, the pressing belt mechanism 37 pushes down both sides of the stacked body 2, and since the belt 24 of the belt conveyor 19 is located inside the stacked body 2, the belt 24
The edge 24a of the blank 4 is in contact with the lower surface of the lowermost punched blank 1. As a result, the lowermost punched blank 1 comes into line contact with the belt conveyor 19, and the frictional force acting between the punched blank 1 and the belt conveyor 19 in the feeding direction increases.

In addition, in the above embodiment, the laminated body 2 of the double pressing belt mechanism 37
Although the positions in the feeding direction are the same as shown in FIG. 16, they may be different as shown in FIG. It may be one.

Further, the pressing force is not limited to the belt mechanism, and a roller may be used, for example. In short, the rear part 1 in the feeding direction of the punched blank l closest to the belt conveyor 19
Any material that can press a onto the belt conveyor 19 may be used.

Furthermore, if the force pressing the rear portion 1a of the punching blank 1 in the feeding direction against the belt conveyor 19 increases, the front end of the lowest layer punching blank 1 may warp as shown by the imaginary line in FIG. be. In this case, the punched blank 1 will collide with the doctor 20 when being sent out, and will be damaged.

Therefore, if there is such a possibility, a warpage regulating body 43 such as a rotating brush, an elastic roller, or a circumferential belt, which is in contact with the front surface of the laminate 2 in the feeding direction, should be installed as shown by imaginary lines in FIG. 14. It is preferable to prevent the punched blank 1 from warping by providing the warpage regulating body 43 in the direction of the arrow in FIG. At this time, as shown in FIG. 16, a pair of warpage regulating bodies 43 may be arranged on both sides of the doctor 20. In this case, the force with which the laminate 2 is pressed down by the warpage regulating body 43 is made smaller than the force with which the pressing belt mechanism 37 is pressed down.

The operation of the pre-feeder 3 is controlled by an unillustrated control device. The operation of the pre-feeder 3 will be explained below.

First, the laminate 2 is placed on the carry-in conveyor 5.

At this time, the front ends of the laminate 2 in the transport direction are aligned using the shutter 12 as a guide.

Next, the placement completion switch 94 is turned on. Then, the shutter 12 is lowered, and then the carry-in conveyor 5 and the elevating conveyor 6 are driven to rotate. As a result, the laminate 2
is transported and placed on the elevating conveyor 6.

Then, the front end of the stacked body 2 in the conveyance direction is connected to the carry-in detection switch 1.
3, the carrying-in conveyor 5 and the elevating conveyor 6 stop operating, and then the hoisting device 14 winds up the chain 15, so that the elevating conveyor 6 rises.

The upward movement of the elevating conveyor 6 is stopped upon detection by the upward movement detection switch 16.

Next, when the limit switch 85 detects that the conveying device 7 is at the home position, the elevating conveyor 6 and the first
The belt conveyor 71 of the transport body 69 is driven to rotate for a certain period of time by a timer, and the stacked body 2 is transported and placed on the belt conveyor 71.

As described above, the stacked body 2 placed on the belt conveyor 71 is positioned above the delivery device 8 due to the movement of the conveyance device 7. At this time, the stacked body 2 is moved to the first positioning body 6
0. The second positioning body 63 allows accurate positioning in the conveyance direction of the first conveyance body 69 and the conveyance direction of the second conveyance body 70, and also corrects misalignment in stacking.

Next, the stacked body 2 is accurately dropped and transported to the delivery device 8 by the transport device 7 without disrupting the stacked state.

Then, when the stacked body 2 is dropped and conveyed, the sending device 8
The doctor 20 guides the front side of the laminate 2 in the feeding direction, and the positioning piece 34 of the feeding device 8 guides the laminate 2 on both sides perpendicular to the feeding direction.
is supplied to a predetermined position of the delivery device 8.

Then, the punched blanks 1 are fed out from the stacked body 2 by the feeding device 8 in a state where they are shifted from each other in the feeding direction and overlapped with each other. Note that this feeding state does not occur as described above even if the laminate 2 is dropped and conveyed onto the laminate 2 which has already been supplied to the feeding device 8 and the punching blank 1 is being fed out and an impact is applied. It was confirmed that the sheets were fed out one by one with a uniform amount of deviation.

The punched blank 1 fed out from the feeding device 8 is supplied to a sack machine feeder 110 from a feeding conveyor 9.

Next, because the processing speed of the sack machine itself is slow,
When the elevating conveyor 6 is stopped at the raised position and is on standby, the auxiliary conveyor 18 is raised by the elevating device 95, so that the auxiliary conveyor 18 and the carry-in conveyor 5 are at the same height.

In this state, when the stack 2 is placed on the carry-in conveyor 5 and the placement completion switch 94 is turned on, the carry-in conveyor 5 and the auxiliary conveyor 18 are driven to rotate after the shutter 12 is lowered, and the stack 2 is conveyed and auxiliary. It is placed on the conveyor 18. When the carry-in detection switch 13 detects this laminate 2,
The stock conveyor 11 is driven to rotate, and the stack 2 is conveyed and placed on the stock conveyor 11. When the photoelectric switch 96 detects the rear end of the laminate 2 in the transport direction,
The entire stack 2 is placed on the stock conveyor 11, and the stock conveyor 11 stops.

Furthermore, when the next stacked product 2 is placed on the carry-in conveyor 5 and the placement completion switch 94 is turned on while the lifting conveyor 6 is on standby, the stacked product 2 is transferred to the stock conveyor 1 in the same way.
1.

In addition, in front of the stock conveyor 11 in the conveyance direction, there is a first
A stock detection switch 97 is provided, and a second stock detection switch 98 is provided on the side.

The first stock detection switch 97 detects the front end of the stack 2 placed on the stock conveyor 11 in the conveying direction.

The second stock detection switch 98 is provided behind the first stock detection switch 97 in the conveyance direction and separated by a distance determined based on the dimensions of the stack 2 in the conveyance direction. The rear end of No. 2 in the conveyance direction is detected.

Then, when both the first stock detection switch 97 and the second stock detection switch 98 detect the stack 2, the control device determines that the stock conveyor 11 is in a full state where no more stacks 2 can be placed, and the control device An interlock is provided to prevent conveyor 18 from operating. When the laminated body 2 is placed on the loading conveyor 5 in this full state and the loading completion switch 94 is turned on, the elevating conveyor 6 and the auxiliary conveyor 18 are lowered after the standby state of the elevating conveyor 6 is released, and the laminated body 2 is placed on the loading conveyor 5. The body 2 is transported from the lifting conveyor 6 to the transport device 7 as described above.

Note that a piece 99 for preventing the stacked body 2 from falling is provided in front of the first stock detection switch 97 in the conveying direction.

Further, the photoelectric switch 96 is connected to the stock conveyor 11.
It also serves as a count switch for counting the number of laminates 2 stocked in the controller, and the number of stacks 2 in stock is stored in the control device.

Further, while the auxiliary conveyor 18 is conveying the stacked product 2, an interlock is provided to prevent the elevating conveyor 6 from descending.
After the photoelectric switch 96 detects the rear end of the stacked body 2 in the conveying direction, the elevating conveyor 6 and the auxiliary conveyor 18 are allowed to descend.

Then, the elevating conveyor 6 and the auxiliary conveyor 18 descend, and the stacked body 2 is placed on the stock conveyor 11 (regardless of whether it is full or not), and the placement completion switch 94 is not turned on, and the loading conveyor 5 side Photoelectric switch 10 provided on the side
When the stacked body 2 is not detected, the stock conveyor 11 and the elevating conveyor 6 are driven to rotate in the opposite direction of conveyance. As a result, the last stocked stack 2 is placed on the lifting conveyor 6, and when the front end of the stack 2 in the transport direction is detected by the carry-in detection switch 13, the lifting conveyor 6 is stopped. Furthermore, when the rear end in the conveyance direction of the second-to-last stocked stack 2 is detected by the photoelectric switch 96, the stock conveyor 11 is stopped.

Then, the stacked body 2 placed on the lifting conveyor 6 is transported to the transport device 7 in the same manner as described above. By repeating this,
The stacked bodies 2 stocked on the stock conveyor 11 are sequentially conveyed. Then, when the stocked laminate 2 runs out, an alarm is sounded by a buzzer or the like.

Note that if the stack 2 is placed on the carry-in conveyor 5 and the placement completion switch 94 is turned on while the stack 2 is being carried out from the stock conveyor 11, the stack 2 being carried out is not transferred to the transport device 7. Laminated body 2 placed on carry-in conveyor 5 after conveyance
transport. In addition, before the start of the unloading operation of the stacked body 2 from the stock conveyor 11, the loading conveyor 5
Priority is given to conveyance of the stacked body 2 placed on.

As described above, by arranging the conveying device 7, the sending device 8, and the stock conveyor 11 in a vertically stacked manner, the vertical space can be effectively utilized, making it suitable for workplaces with limited horizontal space. .

Further, since the stacked bodies 2 can be stocked by the stock conveyor 11, the worker can supply a plurality of stacked bodies 2 at once and perform other work in the meantime, thereby improving work efficiency.

(Effects of the Invention) According to the present invention, the stack of sheet-like articles transported by the transport body is corrected for misalignment of the stack and positioned at a constant position by the first and second positioning members, and Since each positioning body contacts the stacked body from three sides and functions as a guide when the stacked body falls, the stacked body is dropped and conveyed to a fixed position without shifting the stacked state.

In addition, since the first conveying body is able to change its position relative to the upper and lower positions of the second conveying body, when performing positioning by the second positioning body with the stacked body placed on the second conveying body, As the rollers of the second transport body rotate, the laminate moves, and it is possible to prevent the bottom layer of the sheet-like article from being damaged.

Furthermore, when the laminate is placed on the second conveying body, if the second conveying body is moved in its own conveying direction to cause the laminate to fall and convey, the lowermost sheet will be It is possible to prevent scratches on shaped articles.

[Brief explanation of drawings]

1 to 16 relate to embodiments of the present invention, in which FIG. 1 is a perspective view of the conveyance device, FIG. 2 is a front sectional view of the conveyance device, and FIG.
The figure is a side view of the pre-feeder, Figure 4 is a perspective view of the laminate, Figures 5 and 6 are explanatory diagrams of the operation of the second conveying device in different states, and Figure 7 is a perspective view of the different conveying devices. 8 and 9 are explanatory diagrams of the operation of the guide plotter in different states, FIG. 10 is a perspective view of a conveying device according to a further different embodiment, and FIG. 11 is a front cross section of FIG. 1O. 12 is a plan view of the feeding device, FIG. 13 is a rear view of the feeding device, FIG. 14 is a side view for explaining the operation of the feeding device, FIG. 15 is a rear view for explaining the operation of the feeding device, and FIG. The figure is a plan view for explaining the operation of the feeding device. (1)...Punching blank, (2)...Laminated body, (7
)... Conveyance device, (60)... First positioning body, (
63)...Second positioning body, (64)...Positioning piece, (69)...First conveyance body, (70)...Second conveyance body. Patent applicant Hayashibara Biochemical Research Institute Co., Ltd. Same as above Fukuishi Giken Co., Ltd. Agent Patent attorney Susumu Nemoto Haka 1 person

Claims (1)

[Claims] (1) A first conveying body capable of placing a laminated body of sheet-like articles and conveying it laterally, and a laminated body being placed in a transverse direction perpendicular to the direction of conveyance by this first conveying body. a second transport body having a roller that rotates so that the stack can be transported; a second positioning body having a pair of positioning pieces in contact with the side surfaces of the laminate so as to restrict conveyance in both directions;
The first conveyor is able to change its position relative to the top and bottom of the second conveyor, and both conveyors are able to change their positions to a position where they can drop the stacked bodies placed thereon. 1. A conveying device for laminated sheet-like articles, characterized in that the lateral distance between a pair of positioning pieces can be changed.