JP2012035887A - Sheet releasing apparatus and releasing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet releasing apparatus and releasing method capable of surely releasing an adhesive sheet by a simple structure.SOLUTION: The sheet releasing apparatus 1 includes: delivering means 2 for delivering a raw roll R in which the adhesive sheet S is temporarily stuck on one face of a belt-like releasing sheet RL; deforming means 3 for deforming the raw roll R delivered by the delivering means 2 in the cross-sectional direction; and releasing means 4 for releasing the adhesive sheet S from the releasing sheet RL of the raw roll R passing through the deforming means 3. The deforming means 3 is constituted so that the raw roll R may by deformable in the face direction along a first directional line L1 inclined to one side in the delivering direction A within the face of the raw roll R and a second directional line L2 inclined to the other side.

Description

  The present invention relates to a sheet peeling apparatus and a peeling method for peeling an adhesive sheet temporarily attached to a release sheet from the release sheet.

Conventionally, in a peeling apparatus that feeds an original fabric with an adhesive sheet temporarily attached to one surface of a strip-shaped release sheet, and peels the adhesive sheet from the fed release sheet, the adhesive sheet temporarily attaches to the release sheet. A peeling device that peels the adhesive sheet from the release sheet when strong is known (for example, see Patent Document 1).
The peeling apparatus described in Patent Document 1 peels an adhesive sheet temporarily attached to a release sheet that has been divided into two in the width direction from the release sheet, and the release sheet is folded back at an inclined edge of the release plate. It is comprised so that an adhesive sheet may be peeled from a peeling sheet by changing the direction in the horizontal direction with respect to the feeding direction.

JP 2006-143290 A

  However, in the peeling apparatus described in Patent Document 1, in order to change the direction of the two release sheets in different directions, the release sheet is sent out in the left-right direction with respect to the feeding direction. It is necessary to change the direction of the apparatus, so that the structure of the apparatus becomes complicated and the entire apparatus becomes large, and there is an inconvenience that only the original fabric using a release sheet that has been divided in advance in the width direction can be used. is there.

  An object of the present invention is to provide a sheet peeling apparatus and a peeling method capable of reliably peeling an adhesive sheet with a simple structure.

  In order to achieve the above object, the sheet peeling apparatus of the present invention is such that an adhesive sheet having an adhesive layer on one surface of a base sheet is temporarily attached to one surface of a strip-shaped release sheet via the adhesive layer. A feeding means for feeding out the original fabric, a deformation means for deforming the original fabric fed out by the feeding means in a cross-sectional direction, and a peeling means for peeling the adhesive sheet from the release sheet of the original fabric that has passed through the deformation means. The deforming means moves the original fabric in the cross-sectional direction along a first direction line inclined to one side and a second direction line inclined to the other side with respect to the feeding direction in the plane of the original fabric. It is configured to be deformable.

In the sheet peeling apparatus of the present invention, the deformation means is formed continuously or intermittently along the first direction line, and continuously or intermittently formed along the second direction line. The second groove portion, the first groove portion, and a shape that can form a predetermined interval with respect to the first groove portion, the first convex portion facing the first groove portion across the original fabric, and the second groove portion And a second convex portion facing the second groove portion across the original fabric, the original fabric extending along the inner surface of each groove portion and the outer surface of each convex portion. It is preferable to move in the cross-sectional direction.
In the sheet peeling apparatus of the present invention, the first groove portion and the second groove portion are provided continuously on one side of the original fabric, and the first protrusion and the second protrusion are The other side of the original fabric is preferably provided continuously with each other.
Furthermore, in the sheet peeling apparatus of the present invention, the deformation means includes at least one of suction means for sucking the original fabric from one surface side and spraying means for blowing gas to the original fabric from the other surface side. It is preferable that the original fabric is deformed in the cross-sectional direction by the suction or the spraying.

  On the other hand, in the sheet peeling method of the present invention, an original sheet in which an adhesive sheet having an adhesive layer on one side of a substrate sheet is temporarily attached to one side of a strip-like release sheet via the adhesive layer is drawn out. , Along the first direction line inclined to one side and the second direction line inclined to the other side with respect to the feeding direction in the surface of the fed original fabric, The adhesive sheet is peeled off from the original peeling sheet deformed in the cross-sectional direction.

  According to the present invention as described above, the original fabric R is complicated because the original fabric is deformed in the cross-sectional direction along the first and second direction lines inclined to different sides with respect to the feeding direction of the original fabric. For example, a sealant such as a varnish is applied to the outer edge of the adhesive sheet so that the adhesive of the adhesive sheet does not bleed out, and the temporary adhesion force of the adhesive sheet to the release sheet is Even if it is a very strong thing, the temporary attachment force of the adhesive sheet with respect to a peeling sheet can be reduced effectively, and the said adhesive sheet can be reliably peeled from a peeling sheet. In addition, unlike the conventional example, since it is not necessary to send the release sheet in the left-right direction with respect to the feeding direction, the structure of the apparatus can be simplified, and the release sheet previously divided into two in the width direction is provided. Even if it is not the original fabric, it can be handled. Therefore, the adhesive sheet can be reliably peeled from the release sheet with a simple structure. Here, the cross-sectional direction refers to a direction from one side of the original fabric toward the other side.

In the present invention, the first and second groove portions are provided continuously or intermittently along each direction line within the surface of the original fabric, and the first and second convex portions are provided to face the respective groove portions with the original fabric interposed therebetween. If this is the case, the original fabric moves along the inner surface of the groove and the outer surface of the convex portion and is deformed in the cross-sectional direction simply by paying out the original fabric, so that the temporary attachment force of the adhesive sheet can be reduced with a simple structure. .
Further, if the first groove portion and the second groove portion are continuously provided on one side of the original fabric, and the first convex portion and the second convex portion are provided continuously on the other side of the original fabric, Since the continuous portion of the sheet has a mountain shape and a valley shape with respect to the feed direction of the original fabric, the original fabric is more easily deformed when passing between the groove portion and the convex portion, and the adhesive sheet is more reliably peeled off. Furthermore, if a suction means for sucking the original fabric from the groove portion side and a blowing means for blowing gas from the opposite side of the groove portion to the raw fabric, the original fabric can be deformed with a simple configuration. The entire apparatus can be reduced in size.

The side view of the sheet peeling apparatus which concerns on one Embodiment of this invention. The fragmentary perspective view of the sheet peeling apparatus of FIG. (A), (B), (C) is A, B, C arrow sectional drawing of FIG. 2, respectively. The perspective view of the groove part of the sheet peeling apparatus which concerns on the modification of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In the present embodiment, for example, expressions that indicate directions such as up, down, left, right, near side, and back are all used with reference to FIG.
As shown in FIGS. 1 and 2, the sheet peeling apparatus 1 according to the present embodiment peels the adhesive sheet S temporarily attached to one surface of the strip-shaped peeling sheet RL from the peeling sheet RL. Here, the adhesive sheet S is configured by laminating an adhesive layer AD on one surface of the base sheet BS, and is temporarily attached to one surface of the release sheet RL via the adhesive layer AD. It is prepared in advance as an original fabric R.

  The sheet peeling apparatus 1 peels the adhesive sheet S from the peeling sheet RL by folding out the peeling sheet RL, and a deforming means 3 for deforming the fed raw fabric R in a cross-sectional direction. A peeling plate 4 is provided as a peeling means, and a suction plate 5 that holds the peeled adhesive sheet S. In the present embodiment, the sheet peeling apparatus 1 is also provided with a pressing unit 6 that presses and adheres the adhesive sheet S held by the suction disk 5 to the adherend W.

  The entire feeding means 2 is supported by the frame 7. The feeding means 2 includes a support roller 21 that supports the roll R in a roll shape, two guide rollers 22 and 23 that guide the roll R, and a release sheet RL from which the adhesive sheet S has been peeled off. A guide roller 24 for guiding, a drive roller 26 driven by a motor 25 as a drive device, a pinch roller 27 for sandwiching the release sheet RL between the drive roller 26, and a recovery for recovering the release sheet RL by a drive device (not shown). And a roller 28.

  The entire deformation means 3 is supported by the frame 7. The deformation means 3 includes a base member 32 having a flat contact surface 31 that contacts the original fabric R, and a shaft-shaped member 33 provided at a position facing the base member 32 with the original fabric R interposed therebetween. It has. The contact surface 31 of the base member 32 is formed with a V-shaped groove portion 34 that approaches the upstream side with respect to the feeding direction A of the original fabric R from both edges in the end dimension width direction of the original fabric R, The groove 34 is formed along the first groove 35 formed along the first direction line L1 inclined to one side with respect to the feeding direction A of the original fabric R, and the second direction line L2 inclined to the other side. And a second groove portion 36 continuous with the first groove portion 35. The shaft-shaped member 33 includes a first convex portion 37 and a second convex portion 38 having a shape capable of forming a predetermined interval with respect to the first and second groove portions 35 and 36, respectively, and is bent corresponding to the groove portion 34. V-shape. Further, the contact surface 31 including the inner surface of the groove portion 34 is provided with a suction port (not shown) as suction means for sucking the original fabric R from the release sheet RL side, and the raw fabric R is moved through the suction port to the groove portion 34. By suctioning toward the inner surface, deformation of the original fabric R toward the inner surface of the groove 34 is promoted. The base member 32 and the shaft-shaped member 33 are provided so as to be relatively separated from each other via a driving device (not shown), the distance between the base member 32 and the shaft-shaped member 33 is provided to be adjustable, The anti-R paper can be easily passed. Thereby, it is possible to deal with various raw fabrics R having different thicknesses.

  The suction disk 5 has a plurality of suction ports (not shown), and is configured such that the adhesive sheet S can be sucked and held from the base sheet BS side by the suction ports.

  The pressing means 6 is provided on a linear motion motor 61 as a drive device supported by a frame (not shown) and a slider 62 of the linear motion motor 61, and its output shaft 64 is fixed to the upper surface of the suction plate 5. A linear motion motor 63 as a device is provided.

In the above sheet peeling apparatus 1, a procedure for peeling the adhesive sheet S from the release sheet RL will be described.
First, as shown in FIG. 1, the original fabric R is passed through, and the original fabric R is fed out by the feeding means 2. The unrolled original fabric R passes between the inner surface and the outer surface of the shaft-shaped member 33 in a state of being sucked toward the inner surface of the groove 34 by a suction port (not shown). Thereby, the original fabric R is deformed in the cross-sectional direction along the shapes of the groove 34 and the shaft-shaped member 33 while the adhesive sheet S is squeezed by the shaft-shaped member 33.

  That is, as the raw fabric R moves along the inner surface of the groove 34 and the outer surface of the shaft-shaped member 33, first, as shown in FIG. The center part in the end dimension width direction is deformed toward the inside of the groove 34. As the original fabric R is fed out, the deformation position in the same cross section of the original fabric R is changed from the center portion in the end dimension width direction of the original fabric R to the first and second groove portions 35 and 36 as shown in FIG. As shown in FIG. 3 (C), both ends of the original fabric R are eventually deformed in the cross-sectional direction.

  In this way, by deforming the original fabric R in the cross-sectional direction along the first and second direction lines L1 and L2 having different inclination directions, the original fabric R is deformed in a complicated manner to form the release sheet RL and the adhesive sheet S. Since wrinkles in various directions are generated and the size and interval of the wrinkles generated due to the difference in elastic force between the release sheet RL and the adhesive sheet S are different, the adhesive sheet S tends to be peeled off from the release sheet RL. Temporary wearing force decreases. In addition, when the raw fabric R is deformed in the cross-sectional direction, the adhesive sheet S is sent in the feeding direction A and is squeezed obliquely with respect to the feeding direction A by the shaft member 33. In addition, the temporary attachment force of the adhesive sheet S to the release sheet RL is further reduced in an attempt to warp toward the shaft member 33 side in the end dimension width direction.

  When the leading end side in the feeding direction of the adhesive sheet S that has passed through the deforming means 3 reaches the vicinity of the leading edge of the peel plate 4 as described above, the feeding operation of the original fabric R is temporarily stopped and a standby state is entered. Then, when the adherend W is transported on a transport path CV such as a conveyor, it is detected by a sensor (not shown) and stops at a predetermined position below the peel plate 4. When it is confirmed that the adherend W has stopped, the sheet peeling apparatus 1 adheres from the release sheet RL by driving the driving roller 26 with the motor 25 while adsorbing and holding the adhesive sheet S with the suction disk 5. The sheet S is peeled off.

  At this time, the pressing means 6 drives the linear motor 61 in a state where the suction plate 5 holds the adhesive sheet S by suction, and is in the same direction as the feed direction of the original fabric R, and the feed speed of the original fabric R. Since the suction disk 5 is moved at the same speed, the adhesive sheet S is continuously held by the suction disk 5 until it is peeled from the release sheet RL, so that the adhesive sheet S is reliably peeled off.

When the suction plate 5 moves to a predetermined position on the adherend W as indicated by a two-dotted line in FIG. 1, the linear motion motor 63 lowers the suction plate 5 downward, and the adhesive sheet S The adhesive surface is brought into contact with the adherend W, and the adhesive sheet S is pressed against the adherend W and pasted.
When the adhesive sheet S is attached to the adherend W as described above, the sheet peeling apparatus 1 lifts the suction plate 5 by the linear motion motor 63 after releasing the suction and holding of the adhesive sheet S by the suction plate 5. At the same time, each part is returned to the initial position. Thereby, sticking to the adherend W of the peeled adhesive sheet S is completed.

According to this embodiment as described above, the following effects are obtained.
That is, since the original fabric R is deformed in the cross-sectional direction along the first and second direction lines L1 and L2 inclined to different sides with respect to the feeding direction A of the original fabric R, the original fabric R is deformed in a complicated manner. The temporary attachment force of the adhesive sheet S to the release sheet RL can be effectively reduced. Moreover, since it is not necessary to send out the peeling sheet RL in the left-right direction with respect to the feeding direction A, the structure of the sheet peeling apparatus 1 can be simplified.

  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. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations. In addition, the description of the shape, material, and the like disclosed above is exemplary for ease of understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such restrictions is included in this invention.

  For example, in the above-described embodiment, an example in which the shape of the groove 34 in the deforming means 3 is V-shaped has been described. However, the shape of the groove 34 according to the present invention is changed from the V-shape to FIG. A shape as shown in (C) can be adopted. In this case, the shaft member 33 also needs to have a shape corresponding to the groove 34.

  The groove 34A shown in FIG. 4A is formed in a sine wave shape continuous from one end edge in the width direction to the other end edge on the contact surface 31A of the base member 32A. The groove 34B shown is formed in a triangular wave shape that continues from the one edge in the width direction toward the other edge on the contact surface 31B of the base member 32B. In such groove portions 34A and 34B, the first groove portions 35A and 35B and the second groove portions 36A and 36B are alternately and continuously provided, so that the groove portions 34A and 34B are in a mountain shape and a valley shape with respect to the feeding direction A. Since it is formed, the original fabric R can be deformed in a more complicated manner.

FIG. 4C shows an example of a semispherical hemispherical hole 34 </ b> C formed intermittently instead of the continuous shape as shown in the above-described embodiment and FIGS. 4A and 4B. That is, a plurality of hemispherical holes 34C are formed in the contact surface 31C of the base member 32C, and these hemispherical holes 34C are arranged in a staggered manner on the lines LN1 to LN4 orthogonal to the feeding direction A of the adhesive sheet S. Each hemispherical hole 34C viewed from A is always arranged so as to overlap with the hemispherical hole 34C on another line LN1 to LN4. In this case, it is the hemisphere 33C that forms a predetermined interval with the hemisphere hole 34C. The first direction line L1 and the second direction line L2 are arcs of the respective hemispherical holes 34C and hemispherical bodies 33C on both sides in the feeding direction A.
In any of the above cases, the original fabric R can be deformed in the cross-sectional direction along the first and second direction lines L1 and L2. The temporary attachment force can be reduced.

  In the above-described embodiment, the first and second groove portions 35 and 36 are provided along the straight first and second direction lines L1 and L2. However, the first and second groove portions 35 and 36 are It is not essential to provide a straight line if it is inclined in a direction different from the feeding direction A of the original fabric R. As shown in FIGS. 4A and 4C, the first and second groove portions 35 are provided. , 36 may be provided in a curved shape along the first and second direction lines of the curve.

In the embodiment, the raw fabric R is moved along the inner surface of the groove 34 and the outer surface of the shaft-shaped member 33 and deformed in the cross-sectional direction. However, the convex portion is not limited to the shaft-shaped member 33. A blade whose edge corresponds to the groove 34 may be used in place of the shaft-shaped member 33.
Moreover, in the said embodiment, although the original fabric R was deform | transformed toward the peeling sheet RL side from the adhesive sheet S side, you may deform | transform toward the adhesive sheet S side from the peeling sheet RL side conversely.

  In the embodiment, a suction port is provided as a suction means on the contact surface 31 of the base member 32 so that the raw fabric R can be sucked toward the inner surface of the groove portion 34. In addition to this suction means, or Instead of the suction means, for example, a spraying means such as a gas outlet for blowing gas to the original fabric R may be provided in the shaft-like member 33 so that the original fabric R is urged toward the inner surface of the groove 34. .

In the embodiment, the pressing means for temporarily holding the adhesive sheet S peeled from the release sheet RL by the peel plate 4 with the suction plate 5 and pressing the adhesive sheet S held by the suction plate 5 against the adherend W for pasting. 6, the pressing means may be constituted by a pressing roller, a compressed air, or the like that directly presses and adheres the adhesive sheet S peeled off from the release sheet RL by the peel plate 4 to the adherend W. . Moreover, it is good also as what is called an air jet type press means which blows off the adhesive sheet S hold | maintained with the suction disk 5 with compressed air, and affixes it on a to-be-adhered body.
Further, when only the leading end side in the feeding direction of the adhesive sheet S passes along the inner surface of the groove 34 and the outer surface of the shaft-shaped member 33, the base member 32 and the shaft-shaped member 33 are separated from each other via a driving device (not shown). You may control to make it. This is because the adhesive sheet can be easily peeled off from the release sheet after it has been triggered in the initial peeling area, and the adhesive sheet surface is prevented from being injured by complex deformation of the entire adhesive sheet. can do.

  The drive device in the embodiment employs an electric device such as a rotation motor, a linear motion motor, a linear motor, a single axis robot, an articulated robot, an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, and a rotary cylinder. In addition, it is possible to adopt a combination of them directly or indirectly (some of them overlap with those exemplified in the embodiment).

  In the embodiment, the adherend W and the adhesive sheet S are not specifically illustrated. However, in the sheet sticking apparatus and the sticking method of the present invention, the types and materials of the adherend W and the adhesive sheet S are as follows. For example, the adherend W may be an appropriate article (for example, a cardboard case or a resin container), the adhesive sheet S may be a label, and the adherend W is a semiconductor wafer. The adhesive sheet S may be a protective sheet, a dicing tape, a die attach film, or the like. At this time, the semiconductor wafer can be exemplified by a silicon semiconductor wafer, a compound semiconductor wafer, etc., and the adhesive sheet to be attached to such a semiconductor wafer is not limited to a protective sheet, a dicing tape, and a die attach film, but any other sheet, An adhesive sheet having an arbitrary use and shape such as a film and a tape can be applied. Further, the adherend W may be an optical disk substrate, and the adhesive sheet S may have a resin layer constituting a recording layer. As described above, as the adherend W, not only a glass plate, a steel plate, a resin plate, and other plate-like members but also members and articles of any form can be targeted.

DESCRIPTION OF SYMBOLS 1 Sheet peeling apparatus 2 Feeding means 3 Deformation means 4 Peel plate (peeling means)
35 1st groove part 36 2nd groove part 37 1st convex part 38 2nd convex part AD Adhesive layer BS Base material sheet R Original fabric RL Release sheet S Adhesive sheet L1 1st direction line L2 2nd direction line

Claims (5)

A feeding means for feeding out the original fabric temporarily attached to one surface of the strip-shaped release sheet through the adhesive layer, the adhesive sheet having an adhesive layer on one surface of the base sheet;
Deformation means for deforming the original fabric fed by the feeding means in a cross-sectional direction;
A peeling means for peeling the adhesive sheet from the original peeling sheet that has passed through the deformation means,
The deformation means deforms the original fabric in the cross-sectional direction along a first direction line inclined to one side and a second direction line inclined to the other side with respect to the feeding direction in the plane of the original fabric. A sheet peeling apparatus characterized by being configured. The deformation means includes
A first groove formed continuously or intermittently along the first direction line;
A second groove formed continuously or intermittently along the second direction line;
A shape that can form a predetermined interval with respect to the first groove part, a first convex part that faces the first groove part across the original fabric,
A shape capable of forming a predetermined interval with respect to the second groove portion, and a second convex portion facing the second groove portion across the original fabric,
The sheet peeling apparatus according to claim 1, wherein the raw fabric is moved along an inner surface of each groove portion and an outer surface of each convex portion to be deformed in the cross-sectional direction. The first groove portion and the second groove portion are continuously provided on one side of the original fabric,
The sheet peeling apparatus according to claim 2, wherein the first convex portion and the second convex portion are provided continuously on the other surface side of the original fabric.   The deformation means comprises at least one of a suction means for sucking the original fabric from one surface side and a spraying means for blowing gas to the original fabric from the other surface side, and the original material by the suction or the spraying. The sheet peeling apparatus according to any one of claims 1 to 3, wherein the sheet is deformed in the cross-sectional direction. The adhesive sheet having an adhesive layer on one side of the base sheet is fed out the original fabric temporarily attached to one side of the strip-shaped release sheet via the adhesive layer,
Along the first direction line inclined to one side and the second direction line inclined to the other side with respect to the feeding direction within the surface of the fed original fabric, the original fabric is deformed in the cross-sectional direction,
A sheet peeling method comprising peeling an adhesive sheet from an original peeling sheet deformed in the cross-sectional direction.

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