JP2714711B2 - Transport device for stacked sheet-like articles - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transporting a stack of sheet-like articles such as paperboard paper and punched blanks for paperboard.

(Conventional technology) A belt conveyor or a roller conveyor is generally used to transport stacked sheet-like articles.

However, belt conveyors and roller conveyors simply transport the laminate in the horizontal direction, so when transferring to a different conveyor, it is necessary to arrange the conveyors in parallel in the horizontal direction. It is not desirable in a restricted workplace.

Therefore, by allowing the rollers constituting the roller conveyor to freely move back and forth from the transport position, the stacked body placed can be dropped and transported, or the stacked body is vertically transported by the manipulator, so that the conveyor is arranged vertically, It has been proposed to effectively use the vertical space.

(Problems to be Solved by the Invention) In a conventional roller conveyor capable of dropping a laminated body, the laminated body can be transported only in a direction orthogonal to the rotation axis of the roller. for that reason,
If the laminated body is moved in the axial direction of the roller to correct the positioning or the misalignment of the laminated body or to drop the laminated body, there is a problem that the lowermost sheet-like article is scratched by the roller.

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

(Means for Solving the Problems) An object of the present invention is to solve the above-mentioned problems of the conventional technology.

The feature of the present invention is that a stacked body in which sheet-like articles are stacked, a first transport body that can be placed and transported in a lateral direction, and a lateral direction orthogonal to a transport direction by the first transport body, A second transport body having a roller that rotates so that the laminate can be placed and transported, and a first positioning body that is in contact with a side surface of the laminate so as to regulate transport in one lateral direction by the first transport body; A second positioning body having a pair of positioning pieces in contact with a side surface of the stacked body so as to regulate the transport in both lateral directions by the second transportation body, wherein the first transportation body is located at an upper and lower position of the second transportation body. The positions of the two transporters can be freely changed, and the two transporters can be repositioned to a position where the stacked body placed on the roller of the second transporter can be dropped. Laminate is placed on the roller of the second carrier with the horizontal interval In that it is freely changed in state.

(Operation) According to the configuration of the present invention, first, the movement of the stacked body conveyed by the first conveyance body is regulated by the first positioning body, so that the first conveyance body is positioned in the conveyance direction. At this time, the displacement of the stack in the transport direction of the stack is corrected by contacting the first positioning body.

Next, the position of the first transport body is changed below the second transport body, so that the stacked body is placed on the second transport body.

In this state, the horizontal spacing between the two positioning pieces of the second positioning body is changed, and the two positioning pieces come into contact with the stacked body, whereby the stacked body is positioned in the transport direction by the second transport body. At this time, the displacement of the stack in the transport direction of the stack is corrected by contacting the two positioning pieces. When this positioning is performed, the laminate moves in the positioning direction on the second transporter, but the rotation of the rollers of the second transporter does not damage the lowermost sheet-like article of the laminate.

Next, the stacked body is dropped and conveyed by changing the position of both conveying bodies.

Further, since the first and second positioning members are in contact with the side surfaces of the laminate from three directions, they serve as guides when the laminate is dropped, and the laminate is dropped and conveyed to a certain position without shifting the laminated state. You.

(Example) Hereinafter, an example of the present invention is described with reference to drawings.

FIG. 3 shows a pre-feeder 3 for feeding a block-shaped laminated body 2 in which punching blanks 1 for paper containers are vertically stacked to a sack machine for forming paper containers.

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

The pre-feeder 3 releases the laminated body 2 to the sack machine by releasing the close contact state of each blank 1, and a plurality of the punched blanks 1 from the laminated body 2 are brought into close contact with the sack machine. To be sent to

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

Then, a feeder 110 of a suck machine is arranged on the exit side of the delivery conveyor 9. The feeder 110 includes a sack machine belt 111 and a hopper 112 above the sack machine belt 111.

The transport conveyor 5 is a belt conveyor that sends the laminated body 2 to the elevating conveyor 6, and a shutter 12 that can move up and down between the solid line position and the imaginary line position shown between the carry-in conveyor 5 and the elevating conveyor 6. , Frame 4.

The elevating conveyor 6 is a belt conveyor that raises and lowers the stacked body 2 carried in from the carry-in conveyor 5 or the stock conveyor 11 and sends the stacked body 2 to the transport device 7. The elevating conveyor 6 is driven up and down by being connected to a chain 15 of a hoisting device 14 attached to the frame 4. In addition, the stack 2
, And a rise detection switch 16 and a fall detection switch 17 of the lifting conveyor 6 are provided.

The transfer device 7 drops and conveys the stacked body 2 sent from the lifting conveyor 6 to the sending device 8.

Then, the feeding device 8 shifts the punched blanks 1 from the stacked body 2 in the feeding direction so that the punched blanks 1 in the lowermost layer are located on the front side (left side in the drawing) in the feeding direction so as to be superposed. And sends it out to the sending-out conveyor 9.

The delivery conveyor 9 inserts the punched blanks 1 sent from the delivery device 8 and carries the blanks 1 into the suck machine feeder 110.

And the hopper 112 of the suck machine feeder 110
, The punched blank 1 unloaded from the delivery conveyor 9
Is supplied, and the blank 1 in the hopper 112 is
By the rotation of the sack machine belt 111, the sack machine belt 111 is supplied one by one to the sack machine body (not shown).

The stock conveyor 11 temporarily stocks the stacked body 2 carried in from the carry-in conveyor 5 via the auxiliary conveyor 18.

The transfer device 7 has a pair of guide rails 51 attached to the frame 4. The guide direction of the guide rail 51 is defined as a first transport body transport direction, and is defined as a lateral direction in which the guide rail 51 is slightly inclined downward toward the left in FIG. A support 52 is slidably attached to each of the guide rails 51 in the guide direction.

One end of the support 52 is connected to a telescopic rod of a hydraulic cylinder 53, and the other end of the hydraulic cylinder 53 is connected to the frame 4.
Moves in the first carrier transport direction.

Then, as shown in FIGS. 1 and 2, both supports 52 are connected by a pair of connecting rods 54. The axial direction of the connecting rod 54 is defined as a second transporting body transport direction, and is defined as a lateral direction orthogonal to the first transporting body transport direction.

A pair of beams 55 are slidably attached to the connecting rod 54 in the second transporting body transport direction, and can be positioned by bolts 56.

The first positioning body 60 is attached to the beam 55. The first positioning body 60 has a pair of rectangular plates 61,
Each rectangular plate 61 is attached to the front side of the beam 55 in the first transporting body transport direction via a bracket 62 having an L shape in plan view. The bracket 62 is attached to the beam 55 via a long hole and a bolt so that the position of the bracket 62 can be changed in the transport direction of the first transport body. The rectangular plate 61 is attached to a bracket 62 via bolts and long holes so that the position of the rectangular plate 61 can be freely changed in the second transporting body transport direction.

Each connecting rod 54 has a pair of moving bodies 57, bearings
It is mounted so as to be movable in the second transporting body transport direction via 58. The moving body 57 and the beam 55 are connected by a fluid pressure cylinder 59 that expands and contracts in the second transport body transport direction.

The positioning piece 64 of the second positioning body 63 is attached to the moving body 57. That is, the second positioning body 63
Has a pair of rectangular plate-shaped positioning pieces 64, and both positioning pieces 64 are arranged to face each other. The distance between the positioning pieces 64 is adjusted by loosening the bolts 56 to adjust the position of the pair of beams 55. The transport direction can be changed and adjusted freely.
Thereby, it is possible to cope with various laminated bodies having different dimensions in the second transport body transport direction. Further, by expanding and contracting the fluid pressure cylinder 59, the facing distance between the two positioning pieces 64 can be changed in the second transporting body transport direction.

A guide shaft 65 is attached to each positioning piece 64 so as to protrude in the opposite direction. The axial direction of each guide shaft 65 is parallel to the second transport body transport direction. Each of the guide shafts 65 is provided with a carrier mounting member 67 via a bearing 66.
Are movably mounted in the second transporting body transport direction. The carrier mounting member 67 and the beam 55 are connected by a fluid pressure cylinder 68 which can expand and contract in the second carrier transport direction.

The first carrier 69 and the second carrier 70 are attached to the carrier attachment member 67.

The first transport body 69 is mainly composed of a pair of belt conveyors 71. Each belt conveyor 71 has a plurality of rollers 72 arranged in parallel in the guide direction of the guide rail 51 and rotating about an axis parallel to the connecting rod 54, and a belt 73 wound around the rollers 72.

Each roller 72 has a bearing 75 on a roller holding member 74.
And is rotatably held via the. A motor 76 is attached to the roller holding member 74, and the motor 76 is linked to the roller 72.

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

Then, the roller holding member 74 is attached to the carrier attaching member 67,
It is swingably mounted about a shaft 77 parallel to the transport direction of the first transport body. The roller holding member 74 has its shaft
A cam roller 78 is mounted for controlling the swing around the center 77, and a cam 79 which is engaged with and disengaged from the cam roller 78 by the movement of the entire transfer device 7 in the first transfer body transfer direction is mounted on the frame 4. . Its cam roller 78 and cam 79
The roller 72 swings upward due to the engagement with, and swings downward when the engagement is released. The vertical movement of the roller 72 causes the first transport body 69 to move.
Is changed vertically.

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

Each of the roller support brackets 81 is a carrier mounting member.
67 is attached via a bolt 82 and a long hole 83 so that the position of the second carrier 70 can be changed in the transport direction.

Thus, the stacked body 2 is placed on the rollers 80 of the second conveying body 70, and the stacked body 2 is pushed in the lateral direction orthogonal to the conveying direction of the first conveying body 69, so that the stacked body 2 It is conveyed in the lateral direction by rotation.

Further, by changing the vertical position of the first transport body 69, the first
The carrier 69 is vertically moved relative to the second carrier 70.

As shown by the imaginary line in FIG. 2, when the first transport member 69 is at the lower position, the stopper 84 attached to the roller holding member 74 comes into contact with the transport member attachment member 67 side, and the further first transport member 69 is moved to the first position. The carrier 69 is prevented from swinging downward.

The transport of the laminate 2 by the transport device 7 is performed by a control device (not shown). Hereinafter, the operation will be described.

First, the fluid pressure cylinder 53 is contracted to bring the transfer device 7 to the origin position shown in FIG. The 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 transport body 69 is engaged with the cam 79, and the first transport body 69 is positioned above the second transport body 70. In addition, the first transport body 69 is located in the transport direction forward of the elevating conveyor 6 set at the ascending position.

Thereby, the laminated body 2 placed on the elevating conveyor 6
Is a belt conveyor 71 of the elevating conveyor 6 and the first conveyor 69.
Are transported by being rotationally driven, and the first transport body 69
Placed on At this time, the facing distance between both positioning pieces 64 is
The dimension of the stacked body 2 in the second transporting body transport direction is made larger.

The stacked body 2 placed on the first transport body 69 is further transported in the lateral direction by the first transport body 69, and the front side in the transport direction abuts on the rectangular plate 61 of the first positioning body 60.

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

Next, due to the extension of the fluid pressure cylinder 53, the entire transporting device 7 moves laterally slightly downward to the left in FIG. By this movement, the engagement between the cam roller 78 and the cam 79 is released, and the first
The position of the carrier 69 is changed below the second carrier 70, and the stacked body 2 is placed on the second carrier 70.

When the transfer device 7 reaches the drop transfer position above the delivery device 8, the limit switch 86 is operated, and the extension of the fluid pressure cylinder 53 is stopped.

In this position, the lateral spacing of the positioning pieces 64 is reduced by the operation of the hydraulic cylinder 59,
The contact of the second member 64 with the side surface of the stacked body 2 allows the second stacked body 70 to position the stacked body 2 in the transfer direction. Further, if there is a misalignment of the stack in the stacking direction in the stack 2, it is corrected.

At this time, the laminated body 2 moves in the second transporting body transport direction, but since the roller 80 of the second transporting body 70 rotates, the lowermost blanking blank 1 of the laminated body 2 is not damaged.

At the time of this positioning, a projection 88 is projected downward from the lower end of the positioning piece 64 so that the blank 1 does not come out from below the positioning piece 64.

Next, the fluid pressure cylinder 68 operates, and the first transport body 69 and the second transport body 70 move in the transport direction of the second transport body 70,
By changing the position outside the lower part of the stack 2, the stack 2 is dropped and conveyed and supplied to the delivery device 8.

At this time, since the first positioning body 60 and the second positioning body 63 come into contact with the side surface of the laminated body 2 from three directions, the first positioning body 60 and the second positioning body 63 function as guides, and Can be accurately dropped and conveyed to a certain position with respect to the feeding device 8.

Further, in the present embodiment, in a state where the stacked body 2 is placed on the second transfer body 70, the first transfer body 69 and the second transfer body 70 are moved in the transfer direction of the second transfer body 70, and 2 is dropped, so that the roller 80
Is rotated, and the blank 1 in the lowermost layer of the laminate 2 is not damaged.

Next, when a certain amount of blanks 1 are fed out of the laminate 2 supplied to the delivery device 8, the photoelectric switch 87 detects that the height of the laminate 2 has become less than a certain value. As a result, the fluid pressure cylinder 59 operates to increase the distance between the positioning pieces 64 of the second positioning body 63, and the fluid pressure cylinder 68 operates to stack the first carrier 69 and the second carrier 70. The position where the body 2 can be placed is set, and the entire transfer device 7 returns to the origin by contraction of the fluid pressure cylinder 53,
The cam rollers 78 and the cams 79 are engaged again, and the first transport member 69 is positioned above the second transport member 70.

By repeating the above operation, the transport device 7 sequentially transports the laminate 2.

In the present embodiment, the individual rollers 80 constituting the second transport body 70 are attached to the transport body mounting member 67 via a roller support bracket 81 so as to be freely changeable in the transport direction of the second transport body 70. I have.

This is because, as shown in FIG. 4, when the shape of the stacked body 2 is different in width in the conveying direction of the second conveying body 70 between the one side and the other side in the conveying direction by the first conveying body 69. This is for dropping the body 2 smoothly.

That is, as shown in FIG. 5, when the axes of the rollers 80 constituting each pair of roller rows are aligned, when the stacked body 2 is dropped, the time when the mounting of the stacked body 2 by the rollers 80 is released is reduced. Depending on the individual rollers 80, the narrow part of the laminate 2 falls before the large part,
There is a risk that the falling position of the sheet may become incorrect or the stacked state may collapse.

Thus, as shown in FIG. 6, by adjusting the relative position of each roller 80 in the second transporting body transport direction, the timing for releasing the stacking of the stacked body 2 by the rollers 80 when the stacked body 2 is dropped is adjusted. Is the same for all the rollers 80, and the stacked body 2 is more reliably dropped and conveyed to an accurate position.

 The present invention is not limited to the above embodiment.

For example, in the above-described embodiment, the second transport body 70 is configured by a pair of roller rows configured by a plurality of rollers 80. However, as illustrated in FIG. 7, the second transport body 70 is formed by integrating the roller rows. The main configuration may include two rollers 89.

At this time, by forming the circumferential groove 101 in the roller 89,
When the stack 2 is moved to a position where the stack 2 is dropped, the protrusion 88
To prevent interference.

When the second transporting body 70 is mainly composed of a pair of rollers 89, a positioning piece as shown in FIG. 8 is used in order to more reliably carry out the falling transport of the laminated body 2 having the shape shown in FIG. It is preferable that the guide block 90 is mounted on the 64 so that the position of the guide block 90 can be freely changed in the transport direction of the first transport body 69.

The guide block 90 is provided with a positioning piece as shown in FIG.
When the layer 64 comes into contact with the side surface of the multilayer body 2, it is arranged close to the end face that is the boundary between the wide portion and the narrow portion of the multilayer body 2.

Thereby, when the stack 2 is dropped and conveyed,
Even if the mounting by 89 is released on the rear side before the front side, the stacked body 2 is also guided by the guide block 90, and is more reliably dropped and transported to an accurate position, and the stacked state is shifted. Does not occur.

The surface of the guide block 90 facing the side surface of the stacked body 2 is an inclined surface 102 that is closer to the stacked body 2 as it goes forward in the transport direction of the first transport body 69. Thus, when the stacked body 2 is conveyed by the first conveying body 69, even if the stacked body 2 interferes with the guide block 90, the stacked body 2 can be guided in the conveyance orthogonal direction by the slope 102.

The guide block 90 may of course be attached to the embodiment shown in FIGS. 1 and 2.

Further, in the above embodiment, the first transporting body 69 is mainly composed of a pair of belt conveyors 71, but may be mainly composed of a pair of roller conveyors 91 as shown in FIGS.

In this case, the transport direction of the first transport body 69 is set to be a horizontal direction that is slightly downward as it goes forward in the transport direction as in the above-described embodiment, so that the laminate 2 is transported by its own weight. The idle roller that does not need to drive the roller 92 that composes the above.

Further, in the above embodiment, the vertical position of the first transport member 69 is changed, but the vertical position of the second transport member 70 may be changed.

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

Further, in the above-described embodiment, the transport device 7 as a whole can be moved, so that it is possible to cope with a difference in the size of the stacked body 2 in the transport direction of the first transport body 69. However, the transport device 7 is fixed. It may be.

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

As shown in FIGS. 12 to 14, the delivery device 8 includes a belt conveyor 19 that contacts the lower side of the laminate 2 and a rectangular plate-shaped doctor 20 that contacts the front side in the delivery direction of the laminate 2. 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. And a plurality of belts 24 wound therearound.

The position of the belt 24 can be freely changed in a lateral direction (axial direction of the drive shaft 22) orthogonal to the feeding direction, and the belt 24 can convey the laminate 2 having various shapes and sizes. Also,
The coefficient of friction of the outer peripheral surface of the belt 24 is such that the frictional force in the feeding direction acting between the belt 24 and the punching blank 1 is larger than the frictional force in the feeding direction acting between the punching blanks 1. It has been.

In the present embodiment, a pair of the doctors 20 are provided, and the doctors 20 are attached to the frame 4 via a positioning means (not shown) in a vertical direction, a feeding direction, and a horizontal direction orthogonal to the feeding direction. Thereby, the doctor 20 can come into contact with the front side in the feeding direction of the laminated body 2 having various sizes and shapes, and the vertical interval with the belt conveyor 19 can be adjusted.

Further, four guide rods 27 are mounted on the frame 4 in a lateral direction orthogonal to the feeding direction by a set screw 28 so as to be adjustable in position. Each guide rod 27
A bolt 29 having a vertical axis is attached via a set screw 30 and a pedestal 31 so that the position can be adjusted in the feeding direction. Each bolt 29 has a mounting block 32 and a nut 33
It is mounted so that the position can be adjusted in the vertical direction via the.

The positioning pieces 34 of the laminated body 2 are mounted on the pair of mounting blocks 32 via bolts 35 and nuts 36, respectively. The pair of positioning pieces 34 come into contact with the respective side surfaces orthogonal to the feeding direction of the laminated body 2, so that the positioning in the lateral direction perpendicular to the feeding direction of the laminated body 2 is performed.

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 drive pulley 39 attached to the base plate 38, and a pair of upper and lower driven pulleys 42, the drive pulley 39, a belt 40 wound around the driven pulley 42, and a drive The driving motor 41 drives the pulley 39.

The belt 40 is to be in contact with the lower part of the side surface along the feeding direction at the rear side in the feeding direction of the stacked body 2 and is driven to rotate in the direction of the arrow in FIG. Is done. Due to the rotation of the belt 40, the rear side in the feeding direction of the laminated body 2 in contact with the belt 40 is pushed down, and the rear side portion of the lowermost blank 1 in the feeding direction is pressed against the upper surface of the belt 24 of the belt conveyor 19. Will be.

According to the delivery device 8, as shown in FIG.
When the belt conveyor 19 is driven, the punching blanks 1 are shifted from each other in the feeding direction so that the punching blanks 1 are located closer to the front in the feeding direction as the punching blanks 1 on the lower side are located between the upper and lower sides of the belt conveyor 19 and the doctor 20. Will be sent out.

At this time, the pressing belt mechanism 37 is driven, and the belt 40 pushes down the rear side in the sending direction of the laminated body 2,
Rear part 1a in the feeding direction of the lowermost blank 1
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 belt conveyor 19 and the rear portion 1a in the feeding direction of the lowermost blank 1 is positively increased, and the punching of the lowermost layer is performed. Belt conveyor 19 for blank 1
Can be sent along with

Next, the punched blank 1 which was the lowermost layer was sent out, and the punched blank 1 which was newly the lowermost layer was sent out.
Also, the rear part 1a in the feeding direction is the belt conveyor 19
, And the frictional force acting between the belt conveyor 19 and the belt conveyor 19 increases.

By repeating this, the punched blanks 1 are sent out one by one with a uniform shift amount, without a plurality of blanks being sent out collectively.

The punched blanks 1 sent out are stacked again in the hopper 112 of the suck machine feeder 110 to form a laminated body. The laminated body is in a loosened state in which air is filled between the punched blanks 1. Therefore, the close contact state of each blank 1 is released, and the blanks 1 can be reliably fed one by one into the sack machine body by the sack machine belt 111. At this time, in the hopper 112, the rear end of the blank 1 is supported by
Sack Machine Belt
Reference numeral 111 is made to be in contact with the front end of the lowermost blank 1. Thus, the blanks 1 in the hopper 112 are fed one by one without overlapping with the blanks in the upper layer.

Also, as shown in FIG. 15, the pressing belt mechanism 37 pushes down both sides of the laminated body 2 and the belt 24 of the belt conveyor 19 is located inside the laminated body 2, so that the edge of the belt 24
24a is in contact with the lower surface of the blank blank 1 of the lowermost layer. As a result, the lowermost blank 1 is in line contact with the belt conveyor 19, and the frictional force acting between the blank 1 and the belt conveyor 19 in the feeding direction is increased.

In the above embodiment, the laminate 2 of the two pressing belt mechanisms 37 is used.
Are the same in the feeding direction with respect to
As shown in FIG. 16, different materials may be used, or the upper surface of the laminate 2 or the rear side surface in the feeding direction may be pushed down.
Further, the pressing belt mechanism 37 may be single.

Also, the pressing force is applied not only to the belt mechanism,
For example, a roller may be used. In short, the rear part 1a in the feeding direction of the blanking blank 1 closest to the belt conveyor 19 side
Can be pressed against the belt conveyor 19.

Further, when the force pressing the rear side portion 1a of the punching blank 1 in the feeding direction to the belt conveyor 19 increases, the front end of the lowermost punching blank 1 may warp as shown by a virtual line in FIG. is there. Then, the punched blank 1 collides with the doctor 20 when being sent out, and is broken.

Therefore, in the case where there is such a fear, the warp restricting member 43 such as a rotating brush, an elastic roller, or a circling belt, which is in contact with the front surface in the feeding direction of the laminate 2, is used.
It is provided as shown by a virtual line in FIG.
14 is preferably rotated in the direction of the arrow in FIG. 14 to prevent the blank 1 from warping. At this time, the 16th
As shown in the figure, the pair of warp restrictors 43 is
May be arranged on both sides. In this case, the pressing force of the warp regulating member 43 on the laminate 2 is smaller than the pressing force of the pressing belt mechanism 37.

The operation of the pre-feeder 3 is controlled by a control device (not shown). Hereinafter, the operation of the pre-feeder 3 will be described.

First, the stack 2 is placed on the carry-in conveyor 5. At this time, the front ends in the transport direction of the stacked body 2 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 thereafter, the carry-in conveyor 5 and the elevating conveyor 6 are driven to rotate. Thereby, the stacked body 2 is transported and placed on the elevating conveyor 6.

Then, the front end of the stacked body 2 in the transport direction is a carry-in detection switch.
13, the carry-in conveyor 5 and the lifting conveyor 6 stop operating, and then the hoisting device 14
The hoist 15 raises the lifting conveyor 6.

The lifting of the lifting conveyor 6 is stopped by the detection of the lifting detection switch 16.

Next, when it is detected that the transport device 7 is at the home position by the limit switch 85, the lifting conveyor 6 and the first
The belt conveyor 71 of the conveyor 69 is rotated by a timer for a certain period of time, and the laminate 2 is conveyed to the belt conveyor.
It is placed on 71.

The stacked body 2 placed on the belt conveyor 71 is located above the delivery device 8 by the movement of the transport device 7 as described above. At this time, the laminate 2 is placed on the first positioning body 6.
By the second positioning member 63, accurate positioning is performed in the transport direction of the first transport member 69 and the transport direction of the second transport member 70, and the misalignment of the stack is also corrected.

Next, the stack 2 is accurately dropped and conveyed to the delivery device 8 by the conveying device 7 without disturbing the stacked state.

When the stack 2 is dropped and conveyed, the doctor 20 of the feeder 8 guides the front side of the stack 2 in the feed direction, and the positioning pieces 34 of the feeder 8 are positioned on both sides perpendicular to the feed direction of the stack 2. , The laminate 2 is supplied to a predetermined position of the delivery device 8.

Then, the punching blanks 1 are sent out from the laminate 2 by the feeding device 8 in a state where they are shifted from each other in the feeding direction and are superposed. Note that, even if the stack 2 is dropped and conveyed onto the stack 2 on which the punching blanks 1 are already fed to the feeder 8 and the punching blanks 1 are fed, an impact is given as described above. 1 with uniform deviation
It was confirmed that they were sent out one by one.

Then, the punched blanks 1 sent out from the sending device 8 are supplied from the sending conveyor 9 to the suck machine feeder 110.

Next, since the processing speed of the sack machine main body and the like is slow, the auxiliary conveyor 18 is moved up by the elevating device 95 in a state where the elevating conveyor 6 stops at the elevating position and waits, and the auxiliary conveyor 18 and the carry-in conveyor 5 Are the same height.

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

Further, in a state where the elevating conveyor 6 is on standby, the next stacked body 2 is mounted on the carry-in conveyor 5 and the mounting completion switch 94 is set.
When turned ON, the laminate 2 is placed on the stock conveyor 11 in the same manner.

In addition, the first in the transport direction of the stock conveyor 11 is
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 is a stock conveyor.
The front end in the transport direction of the stacked body 2 placed on 11 is detected.

The second stock detection switch 98 is provided behind the first stock detection switch 97 in the conveyance direction at a distance determined based on the size of the stack 2 in the conveyance direction, and is disposed on the stock conveyor 11. 2 to detect the rear end in the transport direction.

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 the stack 2 cannot be placed any more, and An interlock is provided so that the conveyor 18 does not operate. When the stack 2 is placed on the carry-in conveyor 5 and the loading completion switch 94 is turned on in this full state, the lift conveyor 6 and the auxiliary conveyor 18 are lowered after the standby state of the lift conveyor 6 is released, and the stacking is performed. The body 2 is transported from the lifting conveyor 6 to the transport device 7 as described above.

Note that a drop prevention piece 99 of the laminated body 2 is provided in front of the first stock detection switch 97 in the transport direction.

The photoelectric switch 96 also serves as a count switch for counting the number of the stacked bodies 2 stocked on the stock conveyor 11, and stores the number of stocks in the control device.

Further, an interlock is provided so that the elevating conveyor 6 does not descend while the auxiliary conveyor 18 conveys the laminated body 2,
After the photoelectric switch 96 detects the rear end of the stack 2 in the transport direction, the lifting conveyor 6 and the auxiliary conveyor 18 can be lowered.

Then, the lifting conveyor 6 and the auxiliary conveyor 18 are lowered, the stack 2 is placed on the stock conveyor 11 (regardless of whether or not it is full), the loading completion switch 94 is not turned on, and the side of the loading conveyor 5 is When the photoelectric switch 100 provided on the side does not detect the stacked body 2, the stock conveyor 11 and the elevating conveyor 6 are driven to rotate in the opposite direction to the conveyance.
As a result, the stacked body 2 that is finally stocked is placed on the elevating conveyor 6, and when the front end of the stacked body 2 in the transport direction is detected by the carry-in detection switch 13, the elevating conveyor 6 is stopped. In addition, the second laminated stock 2
Is detected by the photoelectric switch 96, the stock conveyor 11 is stopped.

Then, the laminate 2 placed on the elevating 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 issued by a buzzer or the like.

When the stack 2 is placed on the carry-in conveyor 5 and the loading completion switch 94 is turned on while the stack 2 is being unloaded from the stock conveyor 11, the stack 2 being unloaded is transferred to the transfer device 7. After the transfer, the stacked body 2 placed on the carry-in conveyor 5 is transferred. Prior to the start of the unloading operation of the stack 2 from the stock conveyor 11, the transport of the stack 2 placed on the carry-in conveyor 5 is prioritized.

As described above, by vertically arranging the transporting device 7, the feeding device 8, and the stock conveyor 11, the space in the vertical direction can be effectively used, which is suitable for a workplace with a limited horizontal space. .

Further, since the stack 2 can be stocked by the stock conveyor 11, the operator can supply a plurality of the stacks 2 in a lump and perform other work during that time, so that the work efficiency can be improved.

(Effects of the Invention) According to the present invention, the stack of sheet-like articles conveyed by the conveyance body is positioned by the first and second positioning bodies at a fixed position while the misalignment of the stack is corrected.
In addition, since each positioning body comes into contact with the laminated body from three sides and functions as a guide at the time of falling, the laminated body is dropped and conveyed to a fixed position without shifting the laminated state.

In addition, since the first transport body can be freely changed in position relative to the upper and lower positions of the second transport body, when the stacked body is placed on the second transport body, positioning by the second positioning body is performed. In addition, the rotation of the roller of the second transport member can prevent the laminate from moving, thereby preventing the lowermost sheet-shaped article from being damaged.

Further, with the stacked body placed on the second carrier, the second
If the stacked body is dropped and transported by moving the transport body in its own transport direction, it is possible to prevent the lowermost sheet-shaped article from being damaged during the drop transport.

[Brief description of the drawings]

1 to 16 relate to an embodiment of the present invention, wherein FIG. 1 is a perspective view of a transfer device, FIG. 2 is a front sectional view of the transfer device, FIG. 3 is a side view of a pre-feeder, and FIG. Is a perspective view of the laminate,
5 and 6 are explanatory views of the operation of the second transport device in different states, FIG. 7 is a perspective view of the different transport device,
8 and 9 are explanatory views of the operation of the guide block in different states, FIG. 10 is a perspective view of a transfer device according to still another embodiment, FIG. 11 is a front sectional view of FIG. No.
12 is a plan view of the delivery device, FIG. 13 is a rear view of the delivery device, FIG. 14 is a side view for explaining the operation of the delivery device, FIG.
FIG. 15 is a rear view for explaining the operation of the delivery device, and FIG. 16 is a plan view for explaining the operation of the delivery device. (1) ... punch blank, (2) ... laminate, (7) ...
... Conveying device, (60) ... First positioning body, (63) ... Second positioning body, (64) ... Positioning piece, (69) ... First
Carrier, (70) ... second carrier.

Claims (1)

(57) [Claims] 1. A first transport body capable of placing and laminating a stack of sheet-like articles and transporting the laminate in a lateral direction, and placing the laminate in a lateral direction orthogonal to a transport direction by the first transport body. A second transporter having a roller rotatably placed and transportable;
A first positioning member that contacts the side surface of the stacked body so as to restrict the conveyance in one lateral direction by the carrier, and a first positioning member that contacts the side surface of the stacked body so as to restrict the conveyance in both the lateral directions by the second carrier. A second positioning body having a pair of positioning pieces, wherein the first transport body can be relatively changed in the upper and lower positions of the second transport body, and both transport bodies are mounted on rollers of the second transport body. The position can be freely changed to a position where the stacked body can be dropped, and the horizontal interval between the pair of positioning pieces of the second positioning body can be changed in a state where the stacked body is mounted on the roller of the second transport body. A conveying device for laminated sheet-like articles, characterized in that: