JPH0986786A - Sheet material peeling method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet material peeling device capable of completely sucking a sheet material in a short time without forming any rumple thereon at an sucking process, and firmly sucking the initial peeling part of the sheet material during a peeling operation for ensuring a proper operation. SOLUTION: The surface of a sheet material 12 pasted to a film 11 is sucked to the sucking surface of sucking plates 32a and 32b of a sucking body 30. Furthermore, at the time of peeling the sheet material 12 from the film 11, the surface of the sheet material 12 pasted to the film 11 is kept in contact with the sucking surface of the sucking body 30 under pressure and sucked thereto. In this case, the sucking plate 32a is formed to be stronger than the sucking plate 32 and, therefore, the peeling initiation part of the sheet material 12 is strongly sucked to the sucking plate 32a of the sucking body 30, thereby ensuring freedom from a peeling operation failure. Also, the sheet material 12 is free from a rumple during a sucking process, and can be completely sucked in a short time. Thus, product quality is enhanced and work efficiency is improved.

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 method and apparatus for peeling a sheet material from a film.

[0002]

2. Description of the Related Art For example, in the manufacturing process of a laminated ceramic capacitor, there is a process of laminating a plurality of sheet-shaped dielectrics. Since the sheet-shaped dielectric is coated on the carrier film, it is necessary to cut only the dielectric on the carrier film into a predetermined shape and then peel off the cut portion from the carrier film.

A conventional method for peeling a sheet material from the carrier film will be described with reference to FIGS. 6 to 8.

Reference numeral 11 is a belt-shaped resin carrier film,
A sheet material 12 such as a dielectric is integrally coated on the upper surface of the carrier film 11. Further, 13 is a peeling table, which is configured to be movable in the lateral direction of the peeling table 13 in the drawing.
13a is formed. In addition, carrier film 11
Is supplied onto the peeling table 13 from the left side, and the folding section 13a
It is stretched with appropriate tension to move through.

Further, 16 is an adsorbent, and an adsorbent plate 17 made of a porous material is integrally fitted on the lower surface of the adsorbent 16,
The exhaust passage 18 leads to a vacuum device (not shown) provided outside. Therefore, the entire lower surface of the suction plate 17 serves as a suction surface, and the suction member 16 is vertically moved between a raised position shown in FIG. 6 and a lowered position shown in FIGS. 7 and 8 by a driving mechanism (not shown). Driven.

Further, a pair of cutters 20 are provided on both side surfaces of the suction body 16 so as to be vertically movable, and are vertically driven by cylinders 21 fixedly attached to both side surfaces of the suction body 16.

The sheet material 12 coated on the upper surface of the carrier film 11 is moved by the movement of the carrier film 11.
When reaches a position facing the suction surface of the lower surface of the suction body 16,
First, the adsorbent 16 descends to the position shown in FIG.

Next, the cutter 20 is lowered by the cylinder 21 and only the sheet material 12 on the carrier film 11 is cut into a predetermined shape. Thereafter, a vacuum device (not shown) is operated to adsorb the cut sheet material 12 together with the carrier film 11 on the lower surface of the adsorbent 16.

In this state, as shown in FIG. 8, when the peeling table 13 is moved to the left, the carrier film 12 moves in the length direction through the folded portion 13a due to the tension, so that it is adsorbed by the adsorbent 16. A separating force is applied between the sheet material 12 and the carrier film 11 attached to the sheet material 12 from the right end portion in the figure, so that the carrier film 11 and the sheet material 12 are separated from each other.
12 and are peeled from each other. Finally, as shown in FIG. 8, the carrier film 11 is cut into a predetermined shape.
The sheet material 12a peeled from is adsorbed on the lower surface of the adsorbent body 16, and the carrier film 11 after peeling is delivered from the peeling table 13 through the folding portion 13a.

Further, the adsorbent 16 which adsorbs the peeled sheet material 12a once moves up to a predetermined ascending position by a drive mechanism (not shown) and then moves laterally as shown in FIG. Then, the suction is released on the stacking table 22, and the sheet material 12
Stack a on stacking table 22. After this, the adsorbent body 16 is
Return to the origin position indicated by.

When the peeling table 13 is moved to the right in the figure, the portion of the carrier film 11 on which the sheet material 12 has not been peeled is again supplied below the adsorbent 16 as shown in FIG. .

After that, by repeating the same operation,
The sheet material 12a having a predetermined shape is sequentially peeled off from the carrier film 11, and a desired number of sheets are stacked on the stacking table 22.

In such a conventional apparatus, the peeling table 13 is moved horizontally with respect to the suction surface of the suction member 16 so that the sheet material is
Since 12a is peeled off from the carrier film 11,
A certain amount of space must be provided between the lower surface of the suction body 16 which is the suction surface and the upper surface of the peeling table 13 as shown in FIGS. 7 and 8. Therefore, when the sheet material 12a made of a thin-film dielectric is adsorbed on the lower surface of the adsorbent body 16, wrinkles may occur on the sheet material 12a, and the sheet material 12a that can be adsorbed.
There is a limit to the thickness of a.

Further, since there is a space, it takes time to completely adsorb the sheet material 12a by the adsorbent 16 and the work efficiency is lowered.

Further, during the peeling operation described above, a large force in the separating direction is applied between the sheet material 12a at the peeling start portion and the carrier film 11, so that the portion corresponding to the peeling start portion of the sheet material 12a is the adsorbent. If not firmly adhered to 16, the carrier film 11 will not peel from the sheet material 12a,
It may fall off from the lower surface of the adsorbent 16 together with the carrier film 11.

[0016]

As described above, in the prior art, when the sheet material 12a is adsorbed to the adsorption surface of the lower surface of the adsorption member 16, there is a gap between the surface of the sheet material 12a and the adsorption surface. , The adsorbed sheet material 12a has wrinkles, or it takes time for the sheet material 12a to be completely adsorbed,
Further, there is a problem that the sheet material 12a may not be peeled from the carrier film 11.

According to the present invention, the sheet material can be completely adsorbed in a short time without wrinkles on the sheet material during adsorption,
Further, another object of the present invention is to provide a sheet material peeling method and a device thereof, which enables a reliable peeling operation by firmly adsorbing a portion where peeling of the sheet material starts during the peeling operation.

[0018]

According to the present invention, since the surface of the sheet material stuck on the film is pressure-bonded to the adsorption surface of the adsorbent and then adsorbed, the sheet material is adsorbed between the sheet material and the adsorption surface during adsorption. There is no gap, and the sheet material is completely adsorbed without wrinkling.

Further, since the suction force of the portion of the sheet material corresponding to the suction start side is made stronger than that of the other portions, the peeling start portion of the sheet material is firmly held to enable a reliable peeling operation.

Further, the structure is simple because the suction surface is divided into a plurality of series.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. Parts corresponding to those of the conventional example will be described with the same reference numerals.

As shown in FIG. 5, a sheet material such as a dielectric material
12 is a resin carrier film coated on the surface 11
Is wound around the unwinding device 25 in a coil shape, and is unwound in the lengthwise direction as the unwinding device 25 rotates. And
Carrier film 11 unwound from this unwinding device 25
Is five intermediate rollers 26a, 26b, 26c, 26d, 26e,
Then, after being fed in the direction of the arrow while maintaining a predetermined tension via a peeling table 27 provided between the intermediate rollers 26c and 26d, it is wound by a winding device 28.

Further, 29 is a roller cutter, and this roller cutter 29 is applied to the surface of the carrier film 11 on the intermediate roller 26b having the second largest diameter which is arranged second as the carrier film 11 moves. Joined with the sheet material 12,
Only this sheet material 12 is continuously cut to a predetermined dimension in the width direction.

Similar to the conventional peeling table 13 shown in FIGS. 6 to 8, the peeling table 27 has an acute-angled folded-back portion 27a at its right end and is movable in the left and right directions in the drawing. There is. Note that the fourth intermediate roller 26d is also configured to move in the left-right direction as the peeling table 27 moves.

Further, an adsorbent 30 as an adsorbing means is provided above the peeling table 27, and the adsorbent 30 has a drive mechanism.
It is moved forward and backward by 31 and is also moved forward and backward in the horizontal direction so that it can be positioned on the stacking table 22 arranged laterally. And, on both side surfaces of this adsorbent 30,
A pair of cutters 20 are provided and are respectively lifted and lowered by a cylinder 21.

Here, the adsorbent 30 is, as shown in FIG.
Adsorption plates 32a and 32b made of a porous material are integrally provided on the lower surface which is the adsorption surface to form the adsorption surface.
a and 33b are 2 with respect to the traveling direction of the carrier film 11.
It is divided into two series. The two suction plates 32a, 32b communicate with a vacuum device (not shown) through individual exhaust passages 33a, 33b, and are configured to obtain different suction forces. Further, as shown in FIG. 1, the suction force of the suction surface corresponding to the right suction plate 32a is set to be stronger than the suction surface corresponding to the other suction plate 32b.

Further, the peeling table 27 is provided with an elevating part 27b having an area corresponding to the entire adsorption surface of the adsorbent 30, and the elevating part 27b is vertically driven by a cylinder 35 by pneumatic pressure. Then, as shown in FIG. 2, the sheet material 12 on the carrier film 11 located on the upper surface at the time of rising is brought into pressure contact with the suction surface of the suction body 30.

Next, the operation of the above embodiment will be described.

First, as shown in FIG. 5, the carrier film 11 coated with the sheet material 12 on the surface is unwound from the unwinding device 25, and the upper surface of the peeling table 27 is removed from the plurality of intermediate rollers 26a, 26b and 26c. After passing through the tail and the folded portion 27a, it is further wound by the winding device 28 via the intermediate rollers 26d and 26e. Therefore, the carrier film 11 moves in its length direction while maintaining an appropriate tension.

During this movement, first, the second intermediate roller 26
When passing through b, the sheet material 12 coated on the carrier film 11 is provided by the roller cutters 29 arranged to face each other.
Only is cut to a predetermined size in the width direction. The widthwise cutting of only the sheet material 12 is continuously performed as the carrier film 11 moves.

Next, this sheet material 12 part is a peeling table.
When reaching 27, the transport of the carrier film 11 is temporarily stopped. In this state, the drive mechanism 31 is operated to lower the adsorbent 30 located above the peeling table 27 as shown in FIG. 1, and the suction surface is the surface of the sheet material 12 on the peeling table 27. And located at a height that keeps a slight distance.

In this state, the cutters 20 provided on both side surfaces of the adsorbent 30 are moved down by a predetermined stroke by the corresponding cylinders 21 to apply the sheet material coated on the carrier film 11.
Only 12 is cut to a predetermined size in the length direction. By this operation, the sheet material 12 becomes the carrier film 11
Above, along with the widthwise cutting described above, it is cut into a rectangle of a predetermined size.

After the cutter 20 is lifted and returned after the cutting operation, the cylinder 35 lifts and lowers the peeling table 27.
27b and raise the carrier film 11 as shown in FIG.
Then, the cut portion 12a of the sheet material 12 is brought into pressure contact with the suction surface of the suction body 30. After that, a vacuum device (not shown) is activated, and the exhaust paths 33a, 33b are maintained while maintaining the pressure contact state.
The sheet material 12a is vacuum-sucked via the suction plates 32a and 32b. After the suction is completed, the elevating part 27b returns to the original position, that is, the height of the upper surface of the peeling table 27 and descends.

Here, in the prior art, the above-described lifting and lowering section 27 did not perform the pressure contact operation, but the vacuum suction operation was performed in the state where there was a gap between the suction surface and the suction surface. Takes time to complete.

On the other hand, in the above-described embodiment, the sheet material 12a separated by the elevating part 27b as described above.
Since the sheet is pressed against the suction surface of the suction body 30, the sheet material 12a does not have wrinkles unlike the conventional case, and the suction is completed instantly.

When the adsorption of the sheet material 12a to the adsorbent 30 is completed in this way, the peeling table 27 is moved to the left. At this time, the fourth intermediate roller shown in FIG.
Since 26d also moves in the same direction, the carrier film 11 maintains a predetermined tension. With the movement of the peeling table 27, the carrier film 11 is pulled to the lower left, so that a separation force is generated between the carrier film 11 and the sheet material 12a adsorbed by the adsorbent 30, and the carrier film 11 is drawn from the right end portion of the sheet material 12a in the figure.
Begins to peel off.

Here, the sheet material 12a and the carrier film
The sheet material 12a and the carrier film 11 are strongly adhered to each other until they start to separate from each other, and the sheet material 12a is also pulled in the same direction by the pulling force to the lower left of the carrier film 11. Attempt to separate from the adsorption surface. In this case, if the sheet material 12a separates from the adsorption surface of the adsorbent 30 and falls off, thereafter, the sheet material 12a and the carrier film
Since the sheet material 12 is not peeled off, a strong suction force is required to prevent the sheet material 12a from falling off.

On the other hand, once the peeling is started, the sheet material 12a and the carrier film 11 are relatively easily separated from each other, so that it is not necessary to increase the suction force of the adsorbent 30 to the sheet material 12a. .

Therefore, in the above embodiment, the adsorbent 30 is used.
The suction surface is divided into two, and the suction force of the peeling start side, that is, the portion corresponding to the suction plate 32a is set to be stronger than the portion corresponding to the other suction plate 32b. Therefore, since the sheet material 12a is strongly adsorbed by the adsorption plate 32a of the adsorbent 30 at the peeling start portion, the sheet material 12a does not fall off the adsorbent 30 and the peeling operation does not fail.

Further, in the portion where the peeling operation has progressed, the suction plate
The suction force of 32b is set to be relatively weak, but the sheet material 12a does not fall off from the suction body 30 because peeling is performed relatively easily. In this way, since the suction force is set weaker for the portion where the peeling has progressed, it is possible to prevent wasteful energy consumption for generating an excessive suction force,
An energy saving effect is produced for the vacuum device.

When the sheet material 12a is completely separated from the carrier film 11 by the peeling operation, the adsorbent 30
Moves up by the drive mechanism 31, moves further to the right as shown in FIG. 5, and stops on the stacking table 22. Then, the suction is released on the stacking table 22, and the sheet material 12a is stacked on the stacking table 22.

Further, the peeling table 27 and the fourth intermediate roller 26d are returned to their original positions, and further the winding device is used.
By winding the carrier film 11 to a predetermined length by the 28, the sheet material 12 on the carrier film 11 is absorbed by the adsorbent 30.
The state shown in FIG. After that, by repeating the series of operations described above, the sheet materials 12a peeled into a predetermined shape can be sequentially stacked on the stacking table 22.

In the above-described embodiment, the suction surface of the suction member 30 is divided into two series by the two suction plates 32a and 32b of equal size, but FIGS. 3 (a) and 3 (b). As shown in FIG. 4, it is divided into two series by two suction plates 32c and 32d having different sizes, or as shown in FIGS. 4 (a) and 4 (b), four suction plates 32c and 32e having different sizes are provided. 32f, 32
It may be divided into four series by g. Also in these embodiments, the suction plate 32c corresponding to the peeling start portion
The attraction force of is set to be stronger than that of other attraction plates 32d, 32e, 32f, 32g.

In the embodiment, the peeling table is used as a method for pressing the sheet material 12a against the suction surface of the suction body 30.
Although the lifting body 27b provided on the 27 is raised, the suction body 30 after the cutter 20 is raised may be further lowered temporarily, and the lower surface thereof may be pressed onto the surface of the sheet material 12a on the peeling table 27. .

[0045]

According to the present invention, when the sheet material is adsorbed to the adsorbent, the sheet material can be adsorbed instantly without wrinkling, which improves product quality and improves work efficiency. Also, when separating the sheet material and the film, by setting the suction force at the peeling start part stronger than other parts, it is possible to perform a reliable peeling operation without wasting energy. You can

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a sheet material peeling method of the present invention.

FIG. 2 is a front view showing another operation state of the same portion.

FIG. 3 is a diagram showing a suction surface of another embodiment of the above. (A) Front view (b) Plan view

FIG. 4 is a diagram showing a suction surface of another embodiment of the above. (A) Front view (b) Plan view.

FIG. 5 is a conceptual configuration diagram explaining the overall configuration of the same.

FIG. 6 is a front view illustrating a conventional device.

FIG. 7 is a front view for explaining another operation state of the above.

FIG. 8 is a front view for explaining the relationship with the above sheet material stacking device.

[Explanation of symbols]

 11 Film 12 Sheet material 27 Peeling table as crimping means 30 Adsorbent as adsorbing means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Fujino 33, Isogo-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture

Claims (5)

[Claims] 1. A surface of a sheet material attached on a film is adsorbed to an adsorbing surface of an adsorbent, and then a force is applied from one side of the film bonded to the sheet material in a separating direction from the sheet material. In the method of peeling the sheet material from the film, the surface of the sheet material stuck on the film is pressure-bonded to the adsorption surface of the adsorbent, and the adsorption force is applied after the pressure is applied to the adsorption surface. A method for peeling a sheet material, comprising: 2. The sheet according to claim 1, wherein the suction surface with respect to the sheet surface of the suction member is divided into a plurality of series, and the suction force of the series corresponding to the peeling start side is set to be stronger than that of the other series. How to peel the material. 3. Adsorption means for adsorbing the surface of the sheet material attached on the film with different adsorption force depending on the position of the adsorption surface, and adsorbing the surface of the sheet material attached on the film by an adsorbent. A peeling device for a sheet material, comprising: a crimping means for crimping to a surface. 4. The sheet material peeling apparatus according to claim 3, wherein the suction means sets the suction force of the series corresponding to the peeling start side of the sheet material to be stronger than that of the other series. 5. The sheet material peeling apparatus according to claim 4, wherein the suction means has a suction surface divided into a plurality of series.