JPH03172240A - Transfer device of paper sheets - Google Patents

Abstract

PURPOSE:To surely separate paper sheets, piled and arranged in a fixed position, sheet by sheet from the above to be automatically transferred to the other fixed position on a line by providing a control device in which each action of suction and release between a moving sucker board and the paper sheets and each action of reciprocation and movement, forced by the moving sucker board, are mutually correlatively controlled. CONSTITUTION:When a moving sucker board 1, placed in a condition with sucking force previously generated, is lowered onto paper sheets 17 piled and arranged in a fixed position, and brought in close contact with the upper surface of the paper sheets 17, the moving sucker board 1 is placed in a condition in which it is brought in close contact with the paper sheets 17 and simultaneously placing the paper sheet in the uppermost layer in sucked condition. When a reciprocating or turning motion in a direction along the surface of the paper 17 is forced in relation to this moving sucker board 1 by using a reciprocating device 7, the paper sheet 17 in the uppermost layer is forced in action together with the moving sucker board 1. In this way, an effect like a landslide is generated between the uppermost layer paper sheet 17 and the lower layer paper sheet 17 in contact therewith, as a result the uppermost layer paper sheet 17 is surely isolated and separated from the lowe layer paper sheet 17 in contact therewith. Thereafter, the paper sheets are transferred to the other fixed position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper transport device. In this specification, paper specifically refers to extremely thin sheets or plates, such as pieces of paper, polyfilm, thin wood plates, or aluminum foil.

[Prior Art] In the middle of a production line for mass-produced products, it may be necessary to feed sheets of paper one by one from the side of the line toward the line and place the product on top of the sheets. For example, this is the case when it is desired to send - pieces or one unit M of food onto wrapping paper on a conveyor to a downstream packaging process. In such cases, the conventional method is to manually feed the paper sheets one by one by a person on the side of the line, and then the food that was sent from another line is placed on top of the fed paper sheets. The method used was to hold the paper in place by hand until it was transferred correctly.

[Problems to be Solved by the Invention] The reasons why this type of process has traditionally had to be done manually are as follows.

a) The paper supplied to the production line for m-products is usually cut into a predetermined size, punched, or perforated in units of 50 or 100 sheets. . For this reason, the overlapping sheets of paper often adhere to each other very tightly and bite into each other, and it is difficult to remove them one by one from the top, even if a suction cup is used. Therefore, this work had to be done manually.

b) When the separated paper is moved to the top of the line and lowered to a fixed position on the line, even if the lowered position is correct at the time, the paper may be blown away by wind etc. before the food is placed on top of it. Since the paper should not move from its regular position 677, it is necessary to maintain its position so that the paper does not shift until then.
It is easier and more reliable to perform this work manually.

In this way, as production lines for mass-produced products are mechanized and unmanned, only certain steps in the process require human labor, and the fact that worker intervention is essential means that work efficiency is reduced. This was a problem that needed to be solved from the top and the layout of the factory, and improvements were strongly desired.

The present invention uses mechanical power to automate the process of reliably separating sheets of paper stacked in a fixed position one by one from the top and transporting them to another fixed position on the line in the middle of such a production line. The purpose of the present invention is to provide a paper transfer device that contributes to labor saving in the manufacturing process, improves production efficiency, and simplifies factory layout.

The second objective is to automate, by mechanical force, the function of ensuring that paper that has been transferred to another fixed position remains in that position so that it does not shift. .

[Means for Solving the Problems] In order to achieve the above object, the paper transport device of the present invention transports papers stacked and arranged in a fixed position one by one to another fixed position. In the device, there is a movable suction cup that suctions papers and transfers them, then releases the suction and lowers the paper to another fixed position, and a movable suction cup that descends to the top of the arranged papers and picks up the final paper. a reciprocating device that forces a movable suction cup that is sucking paper to reciprocate or rotate in a direction along the surface of the paper in order to separate the upper layer of paper from the lower paper that is in contact with it; A moving device that raises a movable suction cup that has sucked paper together with the paper, moves it to the other fixed position mentioned above, and then lowers it, and the suction and release actions and movement between the movable suction cup and the paper. A control device is provided for mutually controlling the reciprocating motion and movement forced on the suction cup.

In addition, a stationary suction cup is provided on the bottom surface of the other predetermined position to suck the paper that has been moved to the top surface and released from suction from the bottom surface at that same position, and the stationary suction cup sucks and releases the paper. The respective functions may be controlled in relation to each other by the Moeki control device.

[Effect] The movable suction cup, which is in a state where the suction force is activated at the front,
When the movable suction cup is lowered onto stacked and arranged papers in a fixed position and brought into close contact with the top surface of the papers, the movable suction cup comes into close contact and at the same time suctions the topmost layer of papers. If the movable suction cup in this state is forced to reciprocate or rotate in the direction along the surface of the paper using a reciprocating device, the top layer of paper will be forced to perform the above movement along with the movable suction cup. , which creates a landslide-like effect between the top layer of paper and the lower layer of paper that is in contact with it, so that the top layer of paper is steadily pulled away from the lower layer of paper that it is in contact with. separated.

f? The movable suction cup is raised to the paper, and after being moved to the other fixed position mentioned above, the movable suction cup is cut off and the suction force of the movable suction cup is cut off to release the paper. Leave it in place.

Further, according to the device according to claim 2, when the device is left still, the stationary suction cup provided on the lower surface of the fixed position is activated, whereby the paper is reliably attracted from the lower surface at that position, and the paper is Fix the position and keep it! j.

Through the above operations, the suction force of the movable suction cup is generated and interrupted,
Alternatively, in addition to this, a control device can perform mutually related control between the generation and interruption of the adsorption force of the stationary suction cup and the reciprocating and movement of the movable suction cup,
Papers are transferred between each suction cup in an orderly manner, and the paper transfer is completed.

[Example] An example of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, movable suction cups 1.1. ... are cylinders 2, 2 . . . for lifting and lowering. ... are attached to each. Reference numeral 3 denotes a pressure reducing pipe for generating suction force on the movable suction cup 1, and reference numeral 4 denotes a pressurizing pipe for supplying pressurized fluid to generate an elevating force to the piston of the cylinder 2. The cylinders 2 are both attached to a common frame 5. The frame 5 is attached to a piston 7a of a reciprocating cylinder 7 provided on the lever 6 to constitute a reciprocating device. Therefore, tj:.

When the piston 7a of the reciprocating cylinder 7 reciprocates along the Δ arrow by the pressure fluid flowing into the reciprocating cylinder 7, all the moving suction cups 1. 1, . . . are forced to reciprocate in the direction of arrow A all at once. Reference numeral 8 denotes a pressurizing pipe that supplies pressure fluid for imparting reciprocating power to the reciprocating cylinder 7.

A loop-shaped chain 9 having both ends fixed to both sides of the lever 6 is attached to the lever 6, and constitutes a moving device together with a reversible motor 10. By rotationally driving the sprocket 11 that tensions the chain 9 by the motor 10, the lever 6 is moved in the direction of arrow B along the pair of guides 12. It can be moved M. A proximity switch 13 is provided at each turning point of the reciprocating movement. 14 is the shaft of the sprocket 11, and 15 is its bearing.

Paper 17 is accommodated in container n+6 placed on one side of the conveyor line. Reference numeral 18 denotes a stationary suction cup formed in the shape of 11 provided on the lower surface of the conveyor 19, and in the illustrated example, movable suction cups 1.1. . . . is the movable suction cup 1 when lowering the paper 17 onto the wire mesh 20 sent on the conveyor 19.
．． Three 7/+! including the projection position of l,... are arranged in the shape of , 21 are pressure reducing pipes for generating suction force on the stationary suction cup 18.

Reference numeral 22 denotes a control device for suction/adhesion between the movable suction cup l and the paper 17.
Each action of release, each action of reciprocating movement in the direction of arrow A and movement in the direction of arrow B forced on moving J sucker 1, and the action of adsorption and release between stationary sucker 18 and paper 17. This is to control each action in relation to each other.

To explain the operation of transporting paper by the paper transport device having the above structure, in Fig. 1, the motor IO is driven to circulate the chain 9, and the lever 6 is moved to the left in the direction of arrow B in the figure. move along. Proximity switch 1 on the left in the diagram
When the side surface of the lever G approaches 3, the motor IO stops and the movement of the lever 6 stops. Here, the control device 22
When a command is issued to each cylinder 2 to avoid lowering the movable suction cups 1, the movable suction cups 1 descend all at once and come into contact with the upper surface of the paper 17 accommodated in the container 'a16, and the uppermost layer of paper 17 adsorbs. It is convenient for the suction function of the movable suction cup 1 to be always activated except when pulling the suctioned paper I7 away from the suction cup.

Here, by sending pressurized fluid from the high-pressure pipe 8 toward the reciprocating cylinder 7, the moving suction cup 2 with the uppermost layer of paper 17 adsorbed is moved through the frame 5 as indicated by the Δ arrow in FIG. Make a reciprocating movement in the direction. This is done to shift and separate the top layer of paper from the lower layer of paper that is in contact with it, and of course this can be determined as appropriate depending on the situation at the time, but for example, the reciprocating stroke can be reduced to one (1++-
In many cases, repeating IFil or 2.3 reciprocating motions is sufficient to achieve the objective.

After this, the cylinder 2 is operated to raise the movable suction cup 1 together with the paper. In this state, the lever 6 is moved to the right in FIG. 1 by the motor lO to reach a position directly above the conveyor 19. At this point, the movement is stopped by the proximity switch 13 on the right side, and at this position, the movable suction cup 1 is lowered by the cylinder 2 onto the paper 17 being sucked. It is convenient to leave the three stationary suction cups 18 provided on the lower surface of the conveyor 19 in a state where the suction function is always working, except when separating the paper 17 from the suction cups, similar to the movable suction cup 1. Under this condition, the wire mesh 2 placed on the conveyor 19
When the paper 17 is lowered onto the paper 17, the paper 17 receives suction force from the stationary suction cup 18 from its back side. Here, by cutting off the suction force of the movable suction cup I, the movable suction cup I of the paper 17 is
Transfer from the stationary suction cup I8 to the stationary suction cup I8 is extremely smooth.

In this embodiment, the direction of the reciprocating motion to prevent the top layer of paper from separating from the lower layer paper that is in contact with it is set in a direction perpendicular to the direction of movement of the lever 6 (direction of arrow 13). However, the direction of the reciprocating motion is not limited to the direction at right angles, but may be parallel to the direction of the arrow. As an example of a configuration in this case, a proximity switch 23.23 for this purpose is provided in the middle of the guy F12 in FIG. A goal is achieved through coercion. Of course, in this case, the reciprocating cylinder 7 on the lever G is not necessary, resulting in a further simplified device.

In addition, in order to further enhance the effect of paper separation,
This is done by forcing the movable suction cup I to reciprocate both in the direction of the arrow and in a direction perpendicular thereto, either simultaneously or at different times, or by forcing the movable suction cup I to pivot in the direction along the plane of the paper.

Additionally, in this example, a moving suction cup! Although an example is shown in which one cylinder 2 is attached to each movable suction cup l as a means for raising and lowering the ,
All movable suction cups 1 may be raised and lowered at once via the frame 5 by this cylinder.

Further, in this embodiment, the lever 6 is moved by a motor 10.
An example is shown in which the chain 9 and the proximity switch 23 are used as a means for moving between angular positions separated by a fixed interval. Of course, it can also be applied.

Furthermore, it is of course possible to use other conventionally known means for repeatedly moving between regularly spaced angular positions, such as a hydraulic cylinder or a cam device, or a moving suction cup! It goes without saying that for the reciprocating motion or rotational motion for forcing the paper apart, a motor-driven cam device or eccentric plate device can be used in place of the cylinder.

[Effects of the Invention] Since the paper transport device according to the present invention is configured as described above, it has the following effects.

(1) With the configuration set forth in claim I, the work of reliably separating sheets of paper stacked and arranged in a fixed position from above one by one and transporting them to another fixed position on the line can be automated using mechanical power. As a result, it contributes to labor savings in the manufacturing process and increases in production efficiency, and simplifies the factory layout.

(2) The configuration according to claim 2 provides an effect of reliably holding the paper that has been transferred to another fixed position as a transfer destination so that it does not shift from that position.
Additionally, it can be automated using mechanical power.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the paper transfer device according to the present invention, FIG. 2 is a sectional view taken along the line ■■ in FIG. 1, and FIG. FIG. l...Movable sucker, 2...Cylinder, 6...Reno (
-7... Reciprocating cylinder, 9... Chain, 10...
・Motor, 11... Sprocket, 12... Guide, 13.23... Proximity switch, 17... Paper, 18
... Stationary sucker, 22... Control device.

Claims (1)

[Scope of Claims] 1. A device that transfers stacked and arranged papers one by one to another fixed position, which sucks papers and transfers them, then releases the suction and transfers them to other papers. A movable suction cup lowers the paper to a fixed position, and a movable suction cup lowers the paper to the top of the arranged paper to separate the top layer of paper it has attracted from the lower paper that is in contact with it. A reciprocating device that forces the movable suction cup while it is suctioning to reciprocate or rotate in the direction along the surface of the paper, and the movable suction cup that has suctioned the paper is raised together with the paper and moved to the other fixed position mentioned above. and a control device that mutually controls the suction and release actions between the movable suction cup and the paper, as well as the reciprocating motion and movement forced on the movable suction cup. A paper transport device featuring: 2. A stationary suction cup is provided on the bottom surface of the above-mentioned other predetermined position and is used to suction the paper that has been moved to the top surface and released from suction from the bottom surface in that same position, and the stationary suction cup is capable of suction and release. 2. The paper transport device according to claim 1, wherein each operation of the above is controlled in relation to each other by the control device.