JP5364478B2 - Release sheet for adhesive sheet and method of using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a releasing plate capable of suppressing releasing failure of an adhesive sheet and sticking failure of the adhesive sheet and to provide a method for using the same. <P>SOLUTION: The releasing plate 29 is provided so as to be able to release the adhesive sheet from a releasing sheet by turning up a raw sheet in which the adhesive sheet is temporarily stuck on the strip releasing sheet. The releasing plate has a plurality of turning regions with different thicknesses at an end. The releasing plate has a sharp-edged region A1 where the turning region is provided into a sharp shape and a non-sharp-edged region A3 provided into such a shape that has a sharpness being blunt more than that of the sharp-edged region A1. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an adhesive sheet release plate and a method of using the same, and more particularly to an adhesive sheet release plate capable of peeling an adhesive sheet from the release sheet and a method of using the same.

  Sheet pasting that supports the original fabric with the adhesive sheet temporarily attached to one side of the strip-shaped release sheet so that it can be fed out, and can be applied to the adherend while peeling the adhesive sheet from the release sheet during the delivery of the original fabric. An apparatus is known (see, for example, Patent Document 1). The apparatus of the same document includes a release plate that folds the release sheet to release the adhesive sheet, and a pressure roller that can press the adhesive sheet against the adherend, and the release plate is interposed between the pressure roller and the adherend. The adhesive sheet is attached by supplying the adhesive sheet that has been peeled off.

JP 2005-280820 A

  However, in the apparatus as disclosed in Patent Document 1, since the peeling property of the adhesive sheet is improved when the peeling sheet is folded back rapidly, the peeling area of the peeling plate is formed thinly or sharply. In this way, the peeling failure at the peeling plate is suppressed. However, when the tip of the release plate is formed thinly or sharply in this way, if the release sheet is made of thin paper or a thin resin sheet, the release sheet is cut by rubbing against the tip of the release plate. There is an inconvenience that it becomes easy to cause a sticking failure of the adhesive sheet.

[Object of invention]
An object of the present invention is to provide a release plate for an adhesive sheet and a method for using the same, which can suppress poor release of the adhesive sheet due to the shape of the release plate and poor sticking of the adhesive sheet.

In order to achieve the above-mentioned object, the present invention provides a release plate for peeling an adhesive sheet from the release sheet by folding back the original fabric in which the adhesive sheet is temporarily attached to a strip-like release sheet.
Thickness have a plurality of folded areas having different thicknesses at the tip, among them the folded region, with one of the folded region is a thin region thickness, than the other of the at least one folded region is the small thickness region Is a thick area,
According to the material and / or property of the release sheet, the adhesive sheet can be peeled by selectively using a thin region and a thick region of the folded region.

  In the present invention, among the plurality of folded regions, one folded region is provided in a sharp shape to form a sharp region, and at least one other folded region has a shape that is less sharp than the sharp region. It is preferable to adopt a configuration in which a non-sharp region is formed.

  Furthermore, a configuration in which a slope-shaped intermediate region is provided so that the plurality of folded regions are connected by an inclined surface may be employed.

In addition, the method of using the release plate of the present invention is a method of using the release plate that peels the adhesive sheet from the release sheet by folding back the original fabric on which the adhesive sheet is temporarily attached to the strip-shaped release sheet.
The release plate has a plurality of folded regions with different thicknesses at the tip, and among the folded regions, one folded region is a thin region, and at least one other folded region has the thickness. The area is thicker than the thin area,
A method is employed in which the adhesive sheet is peeled using a thin region and a thick region of the folded region according to the material and / or properties of the release sheet.

According to the present invention, since the release plate has a plurality of folded regions with different thicknesses at the tip, for example, in the initial peel region of the adhesive sheet that is difficult to peel the adhesive sheet from the peel sheet, the peel plate peels off in the thin folded region. The sheet is folded and in the area other than the initial peeling area, the adhesive sheet can be peeled from the peeling sheet by folding the peeling sheet in the folding area having a larger thickness than the folding area where the initial peeling area is peeled off. As a result, the release sheet can be rapidly folded back to improve the release characteristics and suppress the release failure, and also suppress the attachment failure caused by the release sheet being rubbed and cut off at the thin release plate tip. it can.
Furthermore, in the peeling plate in which one of the plurality of folded regions is a sharp region and at least one other folded region is a non-sharp region, the above effect can be further enhanced.
Also, by providing a slope-shaped intermediate region so that a plurality of folded regions are connected by an inclined surface, when the release sheet and the release plate are relatively moved while the release sheet is hung around the release plate When the release sheet passes through the folded regions having different thicknesses, it is possible to prevent the release sheet from being caught by the steps, and the operation cannot be performed smoothly.

The schematic front view of the sheet sticking apparatus with which the peeling plate which concerns on embodiment was applied. (A), (B) is a top view for description of peeling operation | movement. The schematic perspective view of a peeling board. The schematic perspective view which shows a modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 3, the sheet sticking device 10 includes a sheet feeding device 11 and a pressing unit 13 that presses and sticks the adhesive sheet S supplied from the sheet feeding device 11 to the adherend W. Has been. The pressing means 13 is composed of a press roller, and can be applied to the adherend W by applying a pressing force to the adhesive sheet S.

  The sheet supply apparatus 11 includes a feeding unit 15 that feeds a strip-shaped original fabric R in which an adhesive sheet S is temporarily attached to a strip-shaped release sheet RL, and folds the release sheet RL in the middle of feeding the original fabric R to return the release sheet RL A peeling means 16 for peeling the adhesive sheet S and a displacement means 17 for moving the peeling means 16 are provided, and the adhesive sheet S can be supplied toward the pressing means 13.

  The feeding means 15 is supported by a frame F fixedly arranged above the conveying means CV via a stand (not shown). The feeding means 15 supports the original fabric R, and includes a support shaft 21 that can be rotated by the motor M1, guide rollers 22 and 23 around which the original fabric R is wound, and a release sheet RL after passing through the release means 16. A driving roller 25 that is wound around and is rotatably provided by the motor M2, a pinch roller 26 that sandwiches the release sheet RL between the drive roller 25, and a winding that winds the release sheet RL with a predetermined torque by the motor M3. A take-up shaft 27 is provided. Each of the motors M1 to M3 can adjust the rotation direction, the rotation speed, and the tension of the release sheet RL.

  The peeling means 16 includes a peeling plate 29 made of a metal plate or the like capable of folding the peeling sheet RL at the tip. The peeling plate 29 has a plurality of folded regions with different thicknesses at the tip. Specifically, as shown in FIGS. 2 and 3, the sharp region A1 (the region where the folded edge is thin) provided with a sharp shape in the folded region is duller than the sharp region A1. A non-sharp region A3 (a region where the folded edge is thick) provided in the shape, and an intermediate region A2 is provided between the sharp region A1 and the non-sharp region A3. In the present embodiment, the release plate 29 is made of a stainless steel plate having a thickness of 3 mm, and the sharp region A1 is ground so that the release plate 29 has a tapered shape with a tip thickness of 0.5 mm, and the tip has a radius of 0.25 mm. Arc-shaped chamfering is applied. In addition, the non-sharp area A3 has an arc-shaped chamfer with a radius of 1.5 mm at its tip without being tapered, in order to dull the sharpness of the non-sharp area A3. The intermediate region A2 is ground so that the sharp region A1 and the non-sharp region A3 are connected by a slope-like gentle inclined surface.

  The displacement means 17 is composed of a linear motion motor 18 supported by the frame F via the bracket B. Then, the peeling plate 29 is fixed to the slider 18A of the linear motor 18 so that the peeling plate 29 can move in the direction crossing the feeding direction of the original fabric R, that is, the vertical direction in FIG.

  Next, the overall operation of this embodiment will be described.

  As an initial operation, the original fabric R supported by the support shaft 21 is pulled out by a predetermined length, and as shown in FIG. The original fabric R is passed between the pinch roller 26 and the lead end of the original fabric R is fixed to the winding shaft 27.

When an operation signal is input from an operation panel or the like (not shown), the displacement means 17 operates to move the peeling plate 29 downward in the drawing as shown in FIG. Then, the motors M1 to M3 are driven to feed out the original fabric R, and the leading end side (initial peeling area) of the adhesive sheet S is partially peeled from the peeling sheet RL in the sharp area A1 of the peeling plate 29, and a sensor (not shown) Thus, the leading edge of the adhesive sheet S is detected, and the feeding of the original fabric R is stopped. Next, as shown in FIG. 2 (A), the displacing means 17 is operated to move the peeling plate 29 upward in FIG. As described above, the adhesive sheet S is peeled off from the release sheet RL, and the initial release area of the adhesive sheet S is peeled off at the sharp area A1, so that the adhesive sheet S can be partly peeled and the peeling failure is prevented. can do.
Thereafter, the adherend W is transported leftward in FIG. 1 by the transport means CV, and the motors M1 to M3 are activated when it is detected by a sensor (not shown) that the adherend has reached the application position of the adhesive sheet S. Then, the raw fabric R is fed out at the same speed as the conveyance speed of the adherend W. By feeding the original fabric R, the adhesive sheet S is peeled from the release sheet RL in the non-sharp area A3 of the release plate 29. Then, the peeled adhesive sheet S is supplied between the adherend W and the pressing means 13, pressed by the pressing means 13, and attached to the upper surface of the adherend W. In this way, by peeling off the region other than the initial release region of the adhesive sheet S in the non-sharp region A3, the release sheet RL is rubbed and cut by the sharp tip, resulting in a defective sticking of the adhesive sheet S. Can be resolved.

  When the application of the adhesive sheet S is completed, the feeding of the original fabric R is stopped again, and then the displacement means 17 is operated to move the peeling plate 29 downward in FIG. 2, and the same operation as described above is repeated. .

  2A, the distance D1 between the lower end edge of the release sheet RL and the lower end edge of the release plate 29 is set to 0, or the upper end edge of the release sheet RL and the upper end edge of the release plate 29 in FIG. Alternatively, the peeling plate 29 may be displaced by the displacing means 17 so that the distance D2 is zero. According to this, even if there is an obstacle or the like on the upper side or the lower side of the peeling plate 29 in the figure, the adhesive sheet S can be supplied and pasted as close as possible to the obstacle. Moreover, by adjusting the vertical position of the peeling plate 29 in FIG. 2 according to the change in the width size of the original fabric R, the width size that is the same as the horizontal width in FIG. 3 of the sharp region A1 and the non-sharp region A3 at the maximum. The versatility which makes the raw fabric R available can be provided.

Therefore, according to such an embodiment, when the adhesive sheet S is peeled off, only the initial peeled area of the adhesive sheet S, which is likely to cause a peeling failure, is peeled off in the sharp tip-shaped area A1, and other areas are sharpened. Since it peels in the non-sharp area A3 whose sharpness is duller than area | region A1, the sticking defect resulting from a release sheet being rubbed and cut | disconnected can be prevented.
Further, as shown in FIG. 3, the intermediate region A2 is formed as a slope-like gentle inclined surface so that the tip shape gradually changes between the sharp region A1 and the non-sharp region A3. When the release sheet RL and the release plate 29 are relatively moved while the release sheet RL is wound around the release sheet RL, the release sheet RL is caught by a step between the sharp region A1 and the non-sharp region A3. Further, it is possible to prevent the movement of the peeling plate 29 (up and down movement in FIG. 2) from being performed smoothly.

As described above, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
In other words, the present invention has been illustrated and described mainly with respect to specific embodiments, but without departing from the scope of the technical idea and object of the present invention, the shape, position, or With respect to the arrangement and the like, those skilled in the art can make various changes as necessary.
Therefore, the description limited to the shape disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded one part or all part is included in this invention.

For example, in the above-described embodiment, the peeling plate 29 having the sharp region A1 and the non-sharp region A3 has been described as the plurality of folded regions having different thicknesses, but the peeling plate 29B as shown in FIG. Good. The peeling plate 29B has a thin peeling area B1, a peeling area B3 thicker than the thin peeling area B1, and a slope between the thin peeling area B1 and the thick peeling area B3. And a gently sloping surface B2. Unlike the sharp region A1, the thin peel region B1 is not tapered, but a part of the stainless plate is ground to form a thin peel region B1. Such a release plate 29B can exhibit the same effect as the release plate 29.
Moreover, you may use the peeling plate 29 for apparatuses other than a sheet sticking apparatus, for example, the sheet peeling apparatus using the adhesive sheet S, etc.

Furthermore, the thickness and chamfering dimensions of the release plate 29 are not limited to the above embodiment, and chamfering may not be performed. In other words, when the release sheet RL is made of a material that is thin and easily cut, the release plate 29 has a thickness of more than 3 mm, or the sharp area A1 has a thickness of more than 0.5 mm. Also, when the release sheet RL is made of a material or property that is thick and difficult to cut, it is possible to prevent chamfering.
Moreover, in the said embodiment, although the folding | turning area | region of peeling sheet RL was made into 2 divisions of sharp area A1 and non-sharp area A3, you may form 3 or more divisions, for example, peeling sharp area A1 and non-sharp area A3 There is no limitation on the number of sections so that an intermediate sharp region having an arc-shaped chamfer with a tip thickness of 2 mm and a radius of 1 mm is provided.

16 Peeling means 29, 29A Peeling plate A1 Sharp area A2 Intermediate area A3 Non-sharp area R Original fabric RL Peel sheet S Adhesive sheet

Claims (4)

In the release plate that peels the adhesive sheet from the release sheet by folding back the raw material on which the adhesive sheet is temporarily attached to the strip-shaped release sheet,
Thickness have a plurality of folded areas having different thicknesses at the tip, among them the folded region, with one of the folded region is a thin region thickness, than the other of the at least one folded region is the small thickness region Is a thick area,
A release plate for an adhesive sheet, which is provided so that the adhesive sheet can be peeled by selectively using a thin region and a thick region of the folded region according to the material and / or properties of the release sheet. .   Among the plurality of folded regions, one folded region is provided in a sharp shape to form a sharp region, and at least one other folded region is provided in a shape that is less sharp than the sharp region. 2. The adhesive sheet release plate according to claim 1, wherein a non-sharp region is formed.   The peeling sheet of the adhesive sheet according to claim 1 or 2, wherein a slope-shaped intermediate region is provided so that the plurality of folded regions are connected by an inclined surface. In the method of using a release plate that peels the adhesive sheet from the release sheet by folding back the original fabric with the adhesive sheet temporarily attached to the strip-shaped release sheet,
The release plate has a plurality of folded regions with different thicknesses at the tip, and among the folded regions, one folded region is a thin region, and at least one other folded region has the thickness. The area is thicker than the thin area,
A method for using a release plate for an adhesive sheet, wherein the adhesive sheet is peeled off by selectively using a thin region and a thick region of the folded region according to the material and / or properties of the release sheet.

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