JPH04144842A - Device for sending-out sheetlike article from stacked body - Google Patents

Abstract

PURPOSE:To prevent sheetlike articles from biting into a part between a doctor and conveyer and to perform smooth delivery by directing the feed of the conveyer to the direction which leaves in the downward direction of the stack body on the conveyer at a position in the front side of the stack body in the feed direction of the stack body as the stack body approaches the doctor. CONSTITUTION:The feed of a belt conveyer 19 is directed to the direction which leaves from the stacked body 2 on the belt conveyer 19 in the downward direction of the stack at the position in the front side of the feed direction as the stacked body 2 approaches a doctor 20. That is, in the internal peripheral side of the belt 24 around the drive shaft 22 and driven shaft 23 of the conveyer 19, an intermediate roller 43 is provided to rotate with a play around an axis parallel to the drive shaft 22. The intermediate roller 43 pushes up the belt 24 on the front side of the center of weight of the stacked body 2 in the belt 24 in the feed direction. The feed direction of the conveyer 19 thus becomes parallel with the bottom face of the stacked body 2 in the rear side of the roller 43 in the feed direction and is directed to the direction, which separates downward from the stacked body 2, and in the front side of the roller 43, in the feed direction as the doctor 20 is approached.

Description

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

(Prior art) For example, punched blanks that have been printed and punched into a predetermined shape by a printing and punching machine are first stacked to form a laminate, and then fed into a sack machine to be formed into paper cartons. .

When feeding punched blanks from the stack into a sack machine, it is necessary to feed the punched blanks one by one.

However, stacked punched blanks are in close contact with each other and cannot be easily fed out one by one.

In some cases, the laminate is manually unraveled to make it easier to feed out one sheet at a time, but a laminate consisting of a large number of stacked blanks is heavy and difficult to unravel manually. be.

Therefore, conventionally, as shown in FIG.
A delivery device is used that includes a belt conveyor 203 on which a laminate 202 in which 1. It was getting worse.

As a result, the doctor 204 and the belt conveyor 20
The punched blanks 201 were sent out from between the upper and lower sides of the blanks 201 and 3 in a stacked state, shifted from each other in the sending direction so that the lower the punched blanks 201 were located on the forward side in the sending direction.

In this way, by feeding the punched blanks 201 in a state where they are shifted from each other, air is introduced between the punched blanks 201 to break the close contact between them, and the punched blanks 201 are sent one by one to the sack machine. This makes it easy to feed.

(Problem to be solved by the invention) In the conventional feeding device, the belt conveyor 203
In some cases, the punching blank 201 gets stuck between the upper and lower parts of the blade and the doctor 204.

Then, the surface of the punching blank 201 will be aligned with the doctor 20.
4 may cause scratches or dents, or the punched blank 201 may not be able to pass between the top and bottom of the belt conveyor 203 and the doctor 204, causing buckling and curling up, resulting in damage, reducing the product value. There was a problem in that the paper was lost and smooth delivery was hindered.

(Means for Solving the Problems) An object of the present invention is to provide a device for feeding sheet-like articles from a laminate that can solve the problems of the prior art described above.

The present invention is characterized by comprising a conveyor in contact with one side in the stacking direction of a stack of sheet-like articles, and a doctor in contact with the front side in the feeding direction of the stack, and a sheet-like article is formed between the doctor and the conveyor. In a device that feeds out an article in a state where the sheet-like article on one side in the stacking direction is shifted further toward the front in the feeding direction, a space is provided in which the front side in the feeding direction of the sheet-like article on one side in the stacking direction of the laminate can move in the stacking direction. The feeding direction of the conveyor is at a position on the front side of the stacked body in the feeding direction, so that it is formed at the rear position of the doctor in the feeding direction, and the conveyor moves away from the stacked body in the stacking direction as it approaches the doctor. .

(Function) First, in the conventional feeding device shown in FIG. 9, the punching blank 201 is inserted from between the doctor 204 and the belt conveyor 203 so that the lower punching blank 201 is located on the front side in the feeding direction. The reason why they can be sent out in a superimposed state while being shifted from each other in the sending direction is due to the following effect.

It is now assumed that the punched blanks 201 are already being fed out from above and below between the doctor 204 and the belt conveyor 203 in a state where they overlap and are shifted from each other in the feeding direction (note that at the beginning of feeding, Punching blank 2
The doctor 204 is moved up and down, and the belt conveyor 2
Adjust the distance from 03. ) The vertical dimensions of the polymer of the punched blanks 201 that are fed out from between the top and bottom of the doctor 204 and the belt conveyor 203 correspond to the amount of deviation since the punched blanks 201 are shifted from each other in the feeding direction. The maximum dimension is determined for each interval, and between the maximum dimensions, the distance decreases toward the rear in the feeding direction.

Therefore, the gap between the lower surface of the doctor 204 and the upper surface of the polymer of the punching blank 201 being sent out from between the top and bottom of the doctor 204 and the belt conveyor 203 gradually changes.

On the other hand, the lowest layer punching blank 201-1 of the laminate 202
The rear portion 201a of the punching blanks 201 is in contact with the belt conveyor 203, and the frictional force in the feeding direction acting between the rear portion 201a of the punching blanks 201 and the belt conveyor 203 is equal to the friction force acting between the punched blanks 201. greater than the frictional force in the direction. Therefore, the lowermost punched blank 201-1 is pushed in the delivery direction by the belt conveyor 203.

The bottom layer punching blank 201-1 is attached to the lower surface of the doctor 204, the doctor 204 and the belt compare 20.
Punching blank 201 being sent out from above and below between 3 and 3.
The gap between the top surface of the polymer and the top surface of the punched blank 201 is -
When the gap is smaller than the size that allows the blank 201 to pass through, the feeding is regulated by the doctor 204, and when the gap becomes larger than the size that allows the blank 201 to pass through, the feed is regulated from between the top and bottom of the doctor 204 and the belt conveyor 203. He will be sent away.

Next, when the punching blank 201-1 that was the lowest layer moves in the feeding direction, the second punching blank 201-2 from the bottom layer becomes the new lowest layer punching blank 201-1, and its feeding direction The rear portion 201a comes into contact with the belt conveyor 203, and the above operation is repeated.

As a result, the lower punching blanks 201 are positioned further forward in the feeding direction and are fed out in a state shifted from each other in the feeding direction.

In the above-mentioned conventional feeding device, the lowermost punched blank 201-1 of the stacked body 202 is transferred to the belt conveyor 20.
3 in the feeding direction, and the front side in the feeding direction is pushed down by the weight of the stacked body 202.

Therefore, the front end of the lowest layer punching blank 201-1 in the feeding direction is always connected to the belt conveyor 203 and the doctor 201.
4, and there is no other place to escape.

Then, the lower surface of the doctor 204 and the doctor 204
Before the gap between the upper surface of the polymer and the punched blank 201 that is being sent out from between the top and bottom of the belt conveyor 203 becomes larger than the size that allows -20 punched blanks 201 to pass through, the punched blank Due to the deformation of the blank 201 itself, the elastic deformation of the belt conveyor 203, etc., the front end of the lowermost punched blank 201-1 in the feeding direction is moved to the belt conveyor 20.
3 and Doctor 204.

Due to the biting, the punching blank 201 is
04, causing scratches and dents on its surface. In addition, due to the biting, the belt conveyor 203
The blank 201 gets stuck between the blank 201 and the doctor 204, and in this stuck state, it is pushed in the delivery direction by the belt conveyor 203, causing buckling and curling up.

In contrast to the conventional feeding device as described above, according to the feeding device of the present invention, a space is formed at the rear position of the doctor in the feeding direction, in which one side in the stacking direction and the front side in the feeding direction of the laminate can move in the stacking direction. There is.

Due to this, the sheet-like article closest to one side in the stacking direction is
Even if the front side in the feeding direction is pushed by the conveyor and is pushed between the doctor and the conveyor, if the gap between them is not large relative to the thickness of the sheet-like article, the existence of the space will cause the article to bend in the stacking direction. It will not deform and get wedged between the doctor and the conveyor. That is,
This space allows the front side of the sheet-like article on one side in the stacking direction in the feeding direction to deform so as to escape in the stacking direction, thereby preventing the sheet-like article from getting wedged between the doctor and the conveyor. .

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

FIG. 5 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 releases the adhesion of each of the punched blanks l constituting the laminate 2 and conveys them to the sack machine, and collects a plurality of punched blanks 1 from the laminate 2 in a close contact state. Prevent it from being fed into the sack machine.

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 stacked body 2 to an elevating conveyor 6.

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.

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 stacks the punched blanks 1 from the stacked body 2 while shifting them from each other in the feeding direction so that the lowest layer of the punching blanks 1 are positioned further forward in the feeding direction (left side in the figure). It is sent out to the delivery conveyor 9 in the same state.

The delivery conveyor 9 is used to sandwich the punched blank l 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 is used to temporarily dock the stack 2 carried in from the carry-in conveyor 5 via the auxiliary conveyor 18.

As shown in FIGS. 1 to 4, the feeding device 8 includes a belt conveyor 19 in contact with the lower side of the laminate 2, and a rectangular plate-shaped doctor 20 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 movable in position in the axial direction of the drive shaft 22, and is capable of conveying laminated bodies 2 of various shapes and sizes. Further, the friction coefficient 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 is assumed 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 vertically axially centered port 29 is attached to each guide rod 27 via a set screw 30 and a pedestal 31 so that the position can be freely changed and adjusted in the feeding direction. Each port 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 stacked body 2 is attached to the pair of attachment blocks 32 via positioning pieces 34, ports 35, and nuts 36, respectively. 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 in contact with a lower portion of the side surface along the feeding direction on the rear side of the stacked body 2 in the feeding direction, and is driven to rotate in the direction of the arrow in FIG. 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 1a of the lowest layer punching blank 1 in the feeding direction is placed on the upper surface of the belt 24 of the belt conveyor 19. Pressing is allowed.

As shown in FIG. 1, the feeding direction of the belt conveyor 19 is such that the laminate 2 placed on the belt conveyor 19 is placed on the forward side in the feeding direction, and as the laminate 2 approaches the doctor 20, the laminate 2 The direction of separation is downward in the stacking direction.

That is, the driving shaft 22 and the driven shaft 2 of the belt conveyor 19
A drive shaft 22 is attached to the inner circumferential side of the belt 24 wrapped around the
An intermediate roller 43 is provided which freely rotates around an axis parallel to the
This intermediate roller 43 is located on the forward side in the feeding direction of the center of gravity of the laminate 2 placed on the belt 24.
It is said to push up the number 4.

The intermediate roller 43 is attached to the frame 4 via a positioning means (not shown) so that its position can be changed and adjusted in the feeding direction and the vertical stacking direction.

As a result, the feeding direction of the belt conveyor 19 is as shown by the arrow in FIG. As it approaches the doctor 20, it separates downward from the laminate 2.

Note that the specific position of the intermediate roller 43 in the feeding direction and the vertical position will depend on the size and shape of the punching blank l,
Determine as appropriate depending on the material, etc.

Next, the operation of the above-mentioned feeding device 8 will be explained.

It is now assumed that the punched blanks 1 are already being fed out from above and below between the doctor 20 and the belt conveyor 19 in a state in which they are stacked and shifted from each other in the feeding direction (note that at the beginning of feeding, The positions of the doctor 20 and the intermediate roller 43 are adjusted so that the blanks 1 are sent out in a state shifted from each other in the sending direction. Since the punched blanks 1 are offset from each other in the feeding direction, the vertical dimensions of the polymer 1 become maximum at intervals corresponding to the amount of deviation, and between the maximum dimensions, the dimensions decrease toward the rear in the feeding direction. It is what it is.

Therefore, the gap between the lower surface of the doctor 20 and the upper surface of the polymer of the punching blank 1 being sent out from between the top and bottom of the doctor 20 and the belt conveyor 19 gradually changes.

On the other hand, when the belt conveyor 19 is driven, the rear side portion 1 of the lowermost punched blank 1-1 of the stacked body 2 in the feeding direction is
a is in contact with the belt conveyor 19, and the frictional force in the feeding direction that acts between the rear side portion 1a in the feeding direction and the belt conveyor 19 is greater than the frictional force in the feeding direction that acts between the punched blanks 1. big. Therefore, the lowermost punched blank 1-1 is pushed in the delivery direction by the belt conveyor 19.

According to the feeding device 8 according to the present invention, the feeding direction of the belt conveyor 19 is such that the belt conveyor 19 separates downward from the stacked body 2 as it approaches the doctor 20 at a position on the forward side of the stacked body 2 in the feeding direction. There is. This results in
A space 44 is formed at a rear position of the doctor 20 in the feeding direction, in which the lower side of the stacked body 2 and the front side in the feeding direction of the punched blank 1 can move up and down.

Then, the front side of the lowest layer punching blank 1-1 in the feeding direction is pushed in the feeding direction and pressed against the doctor, and is bent and deformed within the space 44, so that it moves from the position shown by the imaginary line in FIG. Go down to the solid line position, doctor 20
and the belt conveyor 19.

Then, the lowest layer punching blank l-1 is made by doctor 19.
If the gap between the lower surface and the upper surface of the polymer of the punched blank 1 that is fed out from between the upper and lower sides of the doctor 19 and the belt conveyor 20 is smaller than the size that allows the - number of punched blanks 1 to pass through, the feeding is stopped. When the gap becomes larger than the size that allows the blank 1 to pass through, the blank 1 is sent out from between the upper and lower sides of the doctor 20 and the belt conveyor 19.

Next, when the punching blank 1-1, which was the lowest layer, moves in the feeding direction, the second punching blank 1-1 from the lowest layer moves.
2 newly becomes the lowest layer punching blank l-1, and its rear portion 1a in the sending direction comes into contact with the belt conveyor 19, and the above operation is repeated.

As a result, the lower punching blanks 1 are positioned further forward in the feeding direction and are fed out in a state shifted from each other in the feeding direction.

According to the above-mentioned feeding device 8, even if the front side of the lowermost punched blank 1-1 in the feeding direction is pushed by the belt conveyor 19 and is about to be pushed between the doctor 20 and the belt conveyor 19, If the gap is not larger than the thickness of one punched blank l, escape deformation in the stacking direction is allowed within the space 44 as shown by the broken line in FIG. This prevents it from getting caught between the two.

This prevention of biting prevents damage to the punching blank l.
Problems such as curling up and uneven feeding do not occur.

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

For example, as shown in FIG. 6, the surface of the lower end of the doctor 20 on the rear side in the feeding direction is formed into an inclined surface 45 that faces forward in the feeding direction as it goes downward, thereby facilitating the feeding of the punched blank I. You can try it.

In this case, if the material of the punching blank 1 is highly flexible, as shown in FIG. The front side of the punched blank 1 in the feeding direction may also be bent and deformed all together and lowered. Even in this case, a space 44 is formed between the punched blanks I lowered together and the punched blank I above them. Due to the existence of this space 44, the punched blank 1-1 in the lowermost layer is allowed to deform in the stacking direction together with the punched blanks l above it which are collectively lowered downward. This prevents it from getting wedged between the belt conveyor 19 and the belt conveyor 19.

Further, in the above embodiment, the belt conveyor 19 is disposed below the laminate 2, and the punching blank l is inserted from the lower side of the laminate 2.
As shown in FIG.
The present invention may be applied to a feeding device 8 that presses the punched blank 1 against the laminate 2 and feeds out the punched blank 1 from the upper side of the laminate 2. In this case, the conveying direction of the belt conveyor 19 is a direction in which the stack 2 is on the front side in the feeding direction (left side in the figure) and moves away from the stack 2 upward in the stacking direction as it approaches the doctor 20.

Further, the present invention can also be applied to a delivery device in which the punched blanks are laminated in the stacking direction or in the lateral direction, a belt conveyor is disposed on the side of the stack, and the punched blanks are sent out from the side of the stack.

Further, the present invention can also be applied to a feeding device for sheet-like articles other than punched blanks.

Furthermore, instead of the belt conveyor, for example, a roller conveyor may be used to send out the sheet-like article.

The dispensing device 8 according to the invention can be used for punching blanks 1 having flaps 47, 48, 49 shaped as shown in FIG.
It is suitable for sending out.

That is, the flap 47 of the punched blank I shown in FIG.
and the flap 48 are the feeding direction (in direction of the arrow in the figure).
It has edges 47a, 48a facing each other.

Furthermore, the flaps 47 and 49 similarly have edges 47b and 49b that face each other in the feeding direction.

Then, the flaps 48, 4 of the lower punching blank 1
9 is bent back and the flap 47 of the upper punching blank l
In such a case, when the lower layer punching blank 1 is fed out, the edges 48a, 49b of the flaps 48, 49 of the lower layer punching blank 1 overlap the flaps of the upper layer punching blank l. 47 edge 47a,
47b and gets damaged.

In order to prevent this, as shown by the imaginary line in FIG. 50 in the direction of the arrow in FIG. 2, the flaps 48.
49 and press the flap 47 of the upper punching blank l.
It is possible to prevent it from getting caught.

At this time, in the case of a conventional feeding device in which the space 44 is not formed, it is necessary to push down the flap against the tension of the belt of the belt conveyor, but since the tension of the belt is large, it is hardly possible to push the flap down.

On the other hand, according to the feeding device 8 according to the present invention, the flaps 48 and 49 can be easily pushed down due to the existence of the space 44, and the punched blank 1 due to the above-mentioned catch can be easily pushed down.
damage can be prevented.

Further, in the above embodiment, when the belt mechanism 37 is driven, the belt 40 pushes down the rear side of the stacked body 2 in the feeding direction, thereby pushing down the rear side portion 1a of the lowest layer punching blank 1-1 in the feeding direction. It can be 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 along with the belt conveyor 19, and is effective when the material of the punched blank 1 has a small coefficient of friction.

The operation of the pre-feeder 3 is controlled by a splitting device (not shown). 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, the elevating conveyor 6 and the belt conveyor 71 of the transport device 7 are driven to rotate for a certain period of time by a timer, and the stacked body 2 is transported and placed on the transport device 7.

Next, the stacked body 2 is positioned above the feeding device 8 by the movement of the conveying device 7 due to the expansion of the cylinder 53.

Then, the stacked body 2 is dropped and transported to the delivery device 8 by the unillustrated dropping mechanism of the transport device 7 .

Thereby, the punching blanks 1 are sent out from the stacked body 2 by the sending out device 8 in a state where they are shifted from each other in the sending direction and overlapped.

Then, the punched blank 1 sent out from the sending device 8 is supplied to the sack machine feeder 110 from the sending conveyor 9.

The punched blank l sent out from the sending device 8 is transferred to the hopper 112 of the sack machine feeder 110.
However, since this laminate is in a loosened state with air between each punched blank 1, the adhesion of each punched blank 1 is released, and the sack machine belt 111 ensures that 1 is attached to the sack machine body.
You can send them one by one. In addition, at this time, hopper 1
12, 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 belt 111 is arranged so as to come into contact with the front end of the lowest layer punched blank 1. is being used. Thereby, the punched blanks 1 in the hopper 112 are fed out one by one without overlapping with the upper layer of punched blanks.

Note that until the photoelectric switch 87 detects that the height of the stacked body 2 has become below a certain level, the elevating conveyor 6 stops at the raised position and waits, and the auxiliary conveyor 18 is raised by the elevating device 95. 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 comparator 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 conveyance 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 taken 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 transferred to the transport device 7. After being transported, the stacked body 2 placed on the carry-in conveyor 5 is transported. Furthermore, before the start of the operation of carrying out the stacked body 2 from the stock conveyor 11, priority is given to conveying the stacked body 2 placed on the carry-in conveyor 5.

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. .

(Effects of the Invention) According to the feeding device according to the present invention, when feeding a sheet-like article from a laminate in a state shifted in the feeding direction,
It is possible to prevent the sheet-like article from being wedged between the doctor and the conveyor, prevent the sheet-like article from being damaged due to scratches or curling, and to smoothly send out the sheet-like article.

[Brief explanation of the drawing]

1 to 8 relate to embodiments of the present invention, FIGS. 1 and 2 are side views for explaining the operation of the feeding device, FIG. 3 is a plan view of the feeding device, and FIG. 4 is a schematic diagram of the feeding device. Rear view,
5 is a side view of the pre-feeder, FIG. 6 is a side view for explaining the operation of a feeding device according to a different embodiment, FIG. 7 is a side view for explaining the configuration of a feeding device according to a different embodiment, and FIG. 9 is a plan view for explaining the operation of a delivery device according to a different embodiment, and FIG. 9 is a side view for explaining the operation of a delivery device according to a conventional example. DESCRIPTION OF SYMBOLS 1... Punching blank, 2... Laminate, 19... Belt conveyor, 20... Doctor, 44... Space. Patent applicant Hayashibara Biochemical Research Institute Co., Ltd. Same as above Fukuishi Giken Co., Ltd.

Claims (1)

[Claims] (1) A conveyor that is in contact with one side in the stacking direction of a stack of sheet-like articles and a doctor that is in contact with the front side of the stack in the delivery direction, and the sheet-like articles are transferred from between the doctor and the conveyor on one side in the stacking direction. In a device that feeds sheet-like articles in a state in which the sheet-like articles on the side are shifted toward the front in the feed-out direction, the space in which the front side in the feed-out direction of the sheet-like articles on one side of the stacked body in the stacking direction is moved in the stacking direction is defined by the rear position of the doctor in the feed-out direction. , the conveyor feed direction is such that the conveyor moves away from the laminate in the stacking direction as it approaches the doctor at a position on the front side in the delivery direction of the laminate. Feeding device for sheet-like articles.