JPH08119480A - Sheet material peeling device - Google Patents

Abstract

(57) [Summary] [Purpose] When pulling the stacked sheet materials one by one from the uppermost layer, there is no risk that the lower sheet material will be pulled up together, and the uppermost sheet material will be removed from the lower sheet material. Make sure it can be peeled off and pulled up. [Structure] A suction cup 13 is rotatably attached to a vibrating body 10 equipped with a vibration generator via a support rod 12. Then, when the uppermost flexible printed board (FPC) 1 is attracted and pulled up by the suction cup 13, the vibration generator 11 is activated to vibrate the suction cup 13. By this vibration, the FPC1 in the lower layer is shaken off from the FPC1 in the uppermost layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material peeling apparatus for peeling and stacking stacked sheet materials one by one from the uppermost one.

[0002]

2. Description of the Related Art When a stacked sheet material, for example, a flexible printed board (hereinafter referred to as FPC) is pulled up one by one from the uppermost layer to be conveyed, conventionally, a conveying device is provided with a suction cup connected to a suction device. It is generally performed that the suction cup sucks and conveys the uppermost FPC.

[0003]

However, when the uppermost FPC is sucked up by the suction cup and pulled up, the lower FPC may be pulled up together due to static electricity. In addition, even if there is no static electricity, the top FPC
To peel off from the lower FPC and pull up only one,
Air must enter between both FPCs, but since the stacked FPCs are in close contact with each other, when the uppermost FPC is adsorbed by the suction cup and pulled up, the uppermost FPC and the lower FPC It is difficult for air to enter between and, and the FPC in the lower layer will be pulled up together. In particular, when pulling up FPCs stored in water one by one, the surface tension of water causes the FPC of the uppermost layer to rise.
It becomes even more difficult to pull off only one sheet and pull up.

The present invention has been made in view of the above circumstances, and an object thereof is to raise the stacked sheet materials one by one from the uppermost one without the fear of the lower sheet materials being pulled up together. An object of the present invention is to provide a sheet material peeling device capable of reliably peeling the uppermost sheet material from the lower layer sheet material and pulling it up.

[0005]

In order to achieve the above object, a sheet material peeling apparatus according to the present invention is a lifting and lowering body which moves up and down in a case where the stacked sheet materials are pulled up one by one from the uppermost layer. A suction means provided on the elevating body for sucking the sheet material, and a vibration generating means for applying a vibration to the suction means to separate the sucked sheet material from the lower sheet material. is there. In this case, it is preferable that the suction means is rotatably provided.

Further, the suction means can be configured to suck one end side of the sheet material, and in this case, the mounting table on which the stacked sheet materials are mounted is one end of the sheet material sucked by the suction means. It is preferable that the portion on which the side is placed is inclined downward.

In order to allow the fluid to enter between the uppermost sheet material and the lower sheet material, a fluid blowing means for blowing the fluid from the side of the stacked sheet materials is provided, and the fluid blowing means is vibrated. You can also do it.

[0008]

When the uppermost sheet material among the sheet materials stacked by the adsorption means is adsorbed, the elevating means raises the adsorption means. At this time, vibration is applied to the suction means from the vibration generating means, and the vibration causes the uppermost sheet material to be peeled off from the lower sheet material. If this peeling occurs even partially, air or water penetrates between the two sheet materials if the sheet material is stored in water. Therefore, only one sheet material of the uppermost layer is adsorbed and pulled up. be able to.

In this case, if the suction means is rotatable,
Since the suction means is adapted to incline in accordance with the bending of the pulled up sheet material, it is possible to prevent the sheet material from being bent in an unreasonable shape.

When the one end side of the sheet material is sucked by the suction means, unlike the case where both end portions of the sheet material are sucked by the suction means, the interval between the suction means is changed according to the length of the sheet material. You don't have to change it.

In this case, when the end portion of the mounting table on which the stacked sheet materials are placed is inclined downward, the uppermost sheet material adsorbed by the adsorbing means may be peeled off from the lower sheet material. The force to concentrate is concentrated and it becomes easier to peel off.

Further, when the fluid is blown onto the sheet material from the vibrating fluid blowing means, the fluid easily enters between the uppermost sheet material and the lower sheet material, so that the sheet material adsorbed by the adsorbing means. Will be even easier to peel off.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention applied to a flexible printed board conveying apparatus will be described below with reference to FIGS. A flexible printed board (hereinafter referred to as FPC) 1 as a sheet material is a well-known one in which a cover circuit film is formed by forming a conductor circuit pattern on a base film made of plastic such as polyimide or polyester, and this FPC 1 is shown in FIG. As described above, they are stored in a state of being stacked in water in the storage water tank 2. FP
The reason why C1 is stored by immersing it in water is that it has a higher effect of preventing deterioration and the like as compared with the case of exposing it to air, and that a good storage state can be obtained.

A transport device 3 for transporting the FPCs 1 one by one to the next step is provided above the storage water tank 2. The transport device 3 is supported by a rail 4 so that it can be moved along the rail 4. It has become. Then, an elevating body 6 as an elevating means is suspended from the carrying device 3 via a chain 5 which is vertically moved by a hoisting device (not shown). In addition to the above-mentioned hoisting device, as a drive device for moving the lifting body 6 up and down, a structure in which the lifting body 6 is moved up and down by a combination of a screw rod and a nut that is normally and reversely rotated by a motor; It is possible to move the 6 up and down.

A mounting plate 8 is attached to the lower portion of the lifting body 6 via a connecting rod 7, and a vibrating body 10 is attached to the lower portion of the mounting plate 8 via an elastic member such as a rubber plate. ing. The vibrating body 7 includes a vibration generating device 11 as a vibration generating means for generating vibration by rotating an eccentric weight by a motor.
When 1 is activated, it vibrates vertically or laterally, or both directions. It should be noted that the vibration generating means may be constituted by a bimorph formed by stacking two piezoelectric elements.

Two supporting rods 12 are attached to the lower portion of the vibrating body 10 as shown in FIG. 3, and a suction cup 13 made of, for example, rubber as a suction means is attached to the lower end of the supporting rod 12 as a suction means. It is rotatably attached by a pin 14. In this case, the rotation direction of the suction cups 13 is two suction cups 13.
Is defined as a direction orthogonal to the arrangement direction of. The suction cup 13 is connected to a suction device (not shown) via a tube 15, and the inside of the suction cup 13 is decompressed by the suction action of the suction device.

Next, the operation of the above configuration will be described. Now, it is assumed that the carrier device 3 stops at the position shown in FIG. 2, that is, the suction cup 13 is located above the right end side of the FPCs 1 stacked in the storage water tank 2 in the figure. In this state, the lifting body 6
And the suction cups 13 are stacked as shown in FIG. 1 (a), whereby one FPC of the uppermost layer of the FPC 1 is stacked.
Abut 1. Then, a suction device (not shown) is activated to suck the water in the suction cup 13 through the tube 15, and thus the suction cup 13 is adsorbed to the right end of the uppermost FPC 1.

After that, the vibration generator 11 is activated to vibrate the suction cup 13 and the lifting body 6 rises. Then, the suction cup 13 comes up while vibrating the uppermost FPC 1, and the vibration causes the uppermost FPC 1 to vibrate.
1 causes the lower layer FPC1 to shake off, and a gap is created between the uppermost layer FPC1 and the lower layer FPC1, especially between the right end portions sucked by the suction cups 13. Then, if there is a gap between the FPC1 of the uppermost layer and the FPC1 of the lower layer, water enters between both FPC1 through the gap, and the FPC1 of the uppermost layer is easily peeled off from the FPC1 of the lower layer. Only one FPC 1 is pulled up from the storage water tank 2. At this time, sucker 1 on the right end
The FPC1 of the uppermost layer adsorbed by 3 is pulled up from the right end side, so that the left end side hangs down,
At this time, since the suction cup 13 is rotatably supported by the support rod 12, the suction cup 13 rotates about the shaft pin 14 so as to adapt to the bending of the FPC 1, and as a result, the suction cup 13 is sucked. The FPC1 of the uppermost layer is shown in FIG.
As shown by the solid line in (b), it is gradually curved toward the right end and pulled up.

After pulling up one FPC 1 as described above, the conveying device 3 moves along the rail 4 to
1 is conveyed to the next process. Then, the transporting device 3 that has finished transporting the FPC 1 to the next step moves in the opposite direction along the rail 4 and returns to the original position shown in FIG. 2 and pulls up the next FPC 1 as described above. repeat.

As described above, according to this embodiment, when the uppermost FPC1 is picked up from the stacked FPC1 by the suction cup 13 and is pulled up, the uppermost FPC1 is vibrated. Lower layer FPC1
It will come off easily. Therefore, only one FPC1 in the uppermost layer is pulled up, and even the FPC1 in the lower layer is not pulled up.

Further, since the suction cup 13 is rotatably provided, when the uppermost FPC 1 is pulled up, the FPC 1 concerned is pulled up.
1 does not forcibly bend and deform. That is, sucker 1
If 3 is fixed to the support rod 12, the suction cup 1
When the right end portion of the FPC1 is sucked up by 3 and pulled up, the FPC1 is pulled up while the suctioned portion of the suction cup 13 is horizontal as shown by the chain double-dashed line in FIG. When the FPC 1 is pulled up from the water tank 2, the FPC 1 hangs in a state where it is forcibly bent at 90 degrees at the suction part by the suction cup 13 and is bent at the bent part. However, in this embodiment, since the suction cup 13 is rotatable, the suction cup 13 is rotated so that the FPC 1 is gently curved in a natural state,
There is no risk of the FPC 1 breaking.

FIG. 4 shows a second embodiment of the present invention. The difference from the first embodiment is that a mounting table 16 is provided at the bottom of the storage water tank 2 and the FPCs 1 stacked on this mounting table 16 are arranged.
Is to be placed. Then, the FP adsorbed by the right end side of the mounting table 16, that is, the suction cup 13
Curved surface 16a that inclines downward on the side on which the right end of C1 is placed
Is formed. The curved surface 16a may be replaced with a simple inclined surface.

With this configuration, the stacked FPCs 1 are inclined so as to curve downward on the right end side, and therefore, when the right end of the uppermost FPC 1 is sucked up by the suction cup 13 and pulled up, it is peeled off from the lower FPC 1. The force to do so first acts on the tip on the right side, and when the uppermost FPC1 is pulled up, it shifts relative to the lower FPC1. Therefore, the top layer FPC
1 is more easily peeled off from the FPC 1 in the lower layer.

FIG. 5 shows a third embodiment of the present invention, in which a suction cup 17 for adsorbing the right end portion of the FPC 1 is composed of one horizontally long suction cup, and this suction cup 17 is used for the support rod 1.
It is attached to 2 by a shaft pin 14 so as to be rotatable. Even with such a configuration, the same effect as in the first embodiment can be obtained. In addition, in the second and third embodiments of FIGS. 4 and 5, the same functional portions as those of FIGS. 1 to 3 are denoted by the same reference numerals and detailed description thereof is omitted.

FIGS. 6 and 7 show a fourth embodiment of the present invention. The difference from the first embodiment is that both ends of the FPC 1 are sucked by two suction cups. . In FIGS. 6 and 7, the same functional parts as those in FIGS. 1 to 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

An elevating body (not shown in FIGS. 6 and 7) similar to the elevating body of the first embodiment has a mounting plate 18 extending in the left-right direction via a plurality of connecting rods 7 at the lower part thereof. The vibration generator 11 is provided inside the vibrating body 20 that is attached to the lower portion of the attachment plate 18 via the rubber plate 19.

A suction cup 13 is rotatably attached to the lower ends of the two support rods 12 provided on the lower right side of the vibrating body 20 via a shaft pin 14. Further, a slider 21 is provided on the lower portion of the vibrating body 20 so as to be slidable in the left-right direction. It is rotatably attached via.

The slider 21 is adapted to be moved in the left-right direction by a driving device 23.
Reference numeral 3 denotes a motor 24 attached to a lower portion of the vibrating body 20 and capable of rotating in the forward and reverse directions, a screw rod 25 rotated by the motor 24, and a slider 21 so as to be screwed to the screw rod 25.
And a nut member 26 provided on the screw rod 2
When the motor 5 is rotated forward and backward by the motor 24, the nut member 2
As a result, the slider 21 slides in the left-right direction. Then, by sliding the slider 21, the distance between the suction cups 13 and 22 is adjusted to a dimension corresponding to the length of the FPC 1 in the left-right direction.

The length of the FPC 1 in the left-right direction is a member on the side on which the stacked FPCs 1 are placed, and in this embodiment, a plurality of length detecting means provided intermittently along the left-right direction of the FPC 1 on the placing table 27. Individual reflective optical sensors 28a-2
Detected by 8 g. Here, this optical sensor 28a-
A method of measuring the length of the FPC 1 with 28 g will be described. That is, the stacked FPCs 1 are mounted on the mounting table 27 by pressing the right end, which is one end, against the stopper 29 provided on the mounting table 27. And the optical sensors 28a-2
At 8 g, the light sensor located below the FPC1 outputs a light reception signal when the light emitted by itself is reflected by the FPC1, but the light reception signal is not output from the light sensor outside the FPC1. The length of the FPC 1 can be known by detecting the output optical sensor.

The outputs of the optical sensors 28a to 28g are given to a control device (not shown), and the control device detects the length of the FPC 1 by an optical sensor which outputs a light reception signal. Then, the control device rotates the motor 24 by the number of rotations corresponding to the length of the FPC 1, and thereby the gap between the suction cups 13 and 21 is adjusted to the FPC 1.

In this embodiment, the FPC 1 has suction cups 13 and 2.
Both the left and right sides are adsorbed by 1 and pulled up. At this time, since the suction cups 13 and 21 are rotatable, the FPC 1 is simply curved so as to be convex downward with the rotation of the suction cups 13 and 21 in the directions A and B (outward direction). As a result, excessive bending is prevented, and the FPC 1 is prevented from being broken.

FIG. 8 shows a fifth embodiment of the present invention. The difference from the first embodiment is that the lower FPC1 is forcibly separated from the uppermost FPC1 by blowing air. It is in. That is, a support rod 30 is provided below the vibrating body 10 between the two suction cups 13, and an air blower board 32 is rotatably attached to a lower end portion of the support rod 30 by a shaft pin 31. There is. Then, the air blower board 32 is connected to a compressed air supply source through a tube 33.

On the other hand, a through hole 1a and a positioning hole 1b are formed in the FPC 1, and the air blower board 32 is provided at a position corresponding to the through hole 1a among these holes. The air blowing board 32 may be positioned corresponding to the positioning hole 1b.

In this embodiment, when the lift 6 (not shown in FIG. 8) descends and the suction cup 13 contacts the uppermost FPC 1, the air blower 32 contacts the through hole 1a. Then, the suction cup 13 causes the suction cup 13 to
C1 is adsorbed, and then the lifting body 6 rises. At this time,
When the vibration generator 11 is activated, compressed air from a compressed air supply source (not shown) is blown out from the air blowing board 32. Therefore, the air blown out from the air blower board 32 passes through the through holes 1a and blows on the FPC1 of the lower layer, and the FPC1 of the lower layer is pushed down from the FPC1 of the uppermost layer. Therefore, the uppermost FPC1 is reliably separated from the lower FPC1.

9 and 10 show a sixth embodiment of the present invention. The difference from the first embodiment is that the vibrating body 10 is provided with a nozzle 34 as a fluid blowing means.
The nozzle 34 has a horizontally long slit-shaped outlet 34a and is connected to a compressor that is a compressed air supply source. And, in this nozzle 34, the suction cup 13 is the uppermost layer of F
When PC1 is adsorbed, as shown in FIG.
It is located near one end of PC1 (end on the suction side by suction cup 13) and blows air, which is a fluid, onto FPC1 obliquely from above while being vibrated by vibrating body 10.

According to this embodiment having such a structure, when the uppermost FPC 1 is adsorbed by the suction cup 13 and pulled up, compressed air is blown out from the nozzle 34. The compressed air or water flowing along with the blowing of the compressed air enters between the uppermost FPC1 and the lower FPC1. At this time, since vibration is applied to the nozzle 34, the blowing direction of the compressed air from the nozzle 34 changes in the vertical and horizontal directions, so that compressed air and water are the uppermost layer of the FPC.
1 and the lower FPC 1 are more likely to enter. When the compressed air or water enters between the uppermost FPC1 and the lower FPC1, the uppermost FPC1 can be more easily peeled and pulled up.

The present invention is not limited to the embodiments described above and shown in the drawings, but the following modifications and expansions are possible. The FPCs 1 stacked may not be stored in water but may be stored in a state of being exposed to normal air. The suction cups 13 and 22 and the air blowout disc 32 may be configured to be rotatable in all front, rear, left and right directions by fitting a ball and a spherical hole. The object to be peeled off is not limited to the FPC 1 and can be a relatively thin flexible sheet material in general. Water may be blown out from the nozzle 34, and the shape of the outlet 34a is not limited to the slit shape, and various shapes such as a circle and an ellipse may be considered.

[0038]

As described above, according to the present invention, the following effects can be obtained. In the sheet material peeling apparatus according to claim 1, since the suction means for sucking the sheet material is configured to vibrate, the sheet material sucked by the suction means can be reliably peeled from the lower layer sheet material and pulled up. it can.

In the sheet material peeling apparatus according to claim 2,
Since the suction means is rotatably provided, there is no possibility that the sheet material is bent into an unreasonable shape.

In the sheet material peeling apparatus according to claim 3,
Since one end side of the sheet material is sucked by the suction means, unlike the case where both end portions of the sheet material are sucked by the suction means, it is not necessary to change the interval between the suction means according to the length of the sheet material.

In the sheet material peeling apparatus according to claim 4,
Since one end side of the mounting table on which the stacked sheet materials are mounted is inclined downward, the uppermost sheet material adsorbed by the adsorbing means is more easily peeled off.

In the sheet material peeling apparatus according to claim 5,
By providing the fluid blowing means for blowing the fluid from the side of the stacked sheet materials, the fluid blown out from the fluid blowing means can easily enter between the uppermost sheet material and the lower sheet material. Therefore, it becomes easier to peel off the sheet material adsorbed by the adsorbing means.

[Brief description of drawings]

1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a side view of an essential part showing a state when sucked by a suction cup, and FIG. 1B is a side view of an essential part showing a state immediately after being pulled up.

FIG. 2 is a vertical sectional side view showing the whole.

FIG. 3 is a perspective view at the time of adsorption

FIG. 4 is a vertical sectional side view showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing a third embodiment of the present invention.

FIG. 6 is a vertical sectional side view showing a fourth embodiment of the present invention.

FIG. 7 is a perspective view

FIG. 8 is a perspective view showing a fifth embodiment of the present invention.

FIG. 9 is a perspective view showing a sixth embodiment of the present invention.

FIG. 10 is a view equivalent to FIG.

[Explanation of symbols]

1 is an FPC (sheet material), 2 is a storage water tank, 3 is a conveying device, 6 is a lifting body, 9 is a vibrating body, 11 is a vibration generating device (vibration generating means), 13 is a suction cup (adsorption means), and 16 is mounting. A table, 17 is a suction cup (adsorption means), 20 is a vibrating body, 21 is a slider, 22 is a suction cup (adsorption means), 28a to 28g are optical sensors, 32 is an air blowing board, and 34 is a nozzle (fluid blowing means). .

Claims (5)

[Claims] 1. An apparatus for pulling up stacked sheet materials one by one from the uppermost layer, an up-and-down moving body for moving up and down, a suction means provided on the up-and-down body for sucking the sheet material, and this suction means. A sheet material peeling apparatus comprising: a vibration generating unit that applies vibration to the sheet and peels the absorbed sheet material from a lower layer sheet material. 2. The sheet material peeling apparatus according to claim 1, wherein the suction means is rotatably provided. 3. The sheet material peeling apparatus according to claim 1, wherein the suction means sucks one end side of the sheet material. 4. A mounting table for mounting the stacked sheet materials, wherein the mounting table has a portion on which one end side of the sheet materials adsorbed by the adsorbing means is mounted, which is inclined downward. The sheet material peeling apparatus according to claim 3. 5. A fluid ejecting means for ejecting fluid from the side of the stacked sheet materials so as to allow the fluid to enter between the uppermost sheet material and the lower sheet material, and the fluid ejecting means is provided with this fluid ejecting means. 5. The sheet material peeling device according to claim 1, wherein the vibration is also applied.