JP2012035888A - Apparatus and method for releasing sheet, and sticking apparatus and method for sticking sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide sheet releasing apparatus and releasing method capable of surely releasing an adhesive sheet by a simple structure, and sheet sticking apparatus and sticking method.SOLUTION: The sheet releasing apparatus 2 includes: delivering means 4 for delivering a raw roll R in which the adhesive sheet S having an adhesive layer on one face of a substrate sheet is temporarily stuck on one face of a belt-like releasing sheet RL through the adhesive layer; and releasing means 5 for releasing the adhesive sheet S from the releasing sheet of the raw roll R delivered by the delivering means 4. The releasing means 5 includes: a bending end edge 52 for bending the releasing sheet RL; and deforming means 53 provided along the bending end edge 52 and deforming partly the releasing sheet RL in the direction separating of from the adhesive sheet S.

Description

  The present invention relates to a sheet peeling apparatus, a peeling method, a sheet sticking apparatus, and a sticking method.

Conventionally, in a peeling device and a pasting device 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 with respect to the release sheet There is known one that reliably peels the adhesive sheet from the release sheet when the temporary attachment force is strong (see, for example, 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, a sheet sticking apparatus and a sticking 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. And a peeling means for peeling the adhesive sheet from the release sheet of the original fabric fed by the feeding means, and the peeling means includes a bent edge for bending the release sheet, Deformation means provided along the bent edge and deforming the release sheet partially in a direction away from the adhesive sheet.

In the sheet peeling apparatus of the present invention, the peeling means includes a guide surface that guides the original fabric from the release sheet side, and the deformation means includes a first protruding portion that protrudes in a direction intersecting the guide surface. It is preferable to be configured.
Further, in the sheet peeling apparatus of the present invention, the peeling means includes a guide surface that guides the original fabric from the release sheet side, and the deformation means includes a second protruding portion that protrudes in the guide surface direction. Preferably, it is configured.

  In the sheet peeling method of the present invention, an adhesive sheet having an adhesive layer on one side of a base sheet is fed out from an original fabric temporarily attached to one side of a strip-like peeling sheet via the adhesive layer. It is characterized by bending the release sheet and peeling the adhesive sheet from the release sheet while partially deforming the peeled release sheet in a direction away from the adhesive sheet.

  On the other hand, the sheet sticking device of the present invention feeds out an original fabric in which 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; a peeling means for peeling the adhesive sheet from the original peel sheet fed by the feeding means; and a pressing means for pressing the adhesive sheet peeled by the peeling means against an adherend. The peeling means includes a bent end edge that bends the release sheet, and a deformation means that is provided along the bent end edge and deforms the release sheet partially away from the adhesive sheet. It is characterized by being.

It is preferable that the sheet sticking apparatus of the present invention includes a holding unit that holds the adhesive sheet from the base sheet side.
Further, in the sheet sticking device of the present invention, the pressing means is provided so as to be movable in the same direction as the feeding direction of the original fabric and at the same speed as the feeding speed of the original fabric. Is preferred.

  In the sheet sticking method of the present invention, an adhesive sheet having an adhesive layer on one side of a base sheet is fed out from the original fabric temporarily attached to one side of a strip-shaped release sheet via the adhesive layer. While partially deforming the peeled release sheet in a direction away from the adhesive sheet, the release sheet is folded to peel the adhesive sheet from the release sheet, and the peeled adhesive sheet is pressed against the adherend. It is affixed.

  According to the present invention as described above, in order to partially deform the release sheet in a direction away from the adhesive sheet, the release sheet is folded in a state where a part of the adhesive sheet is peeled from or peeled off from the release sheet. For example, when the adhesive of the adhesive sheet has entered the trace of the release sheet formed when the adhesive sheet is cut into a predetermined shape, or so that the adhesive of the adhesive sheet does not ooze out Even when a sealing agent such as a varnish is applied to the outer edge of the adhesive sheet, even if the adhesive sheet temporarily adheres to the release sheet, the adhesive sheet is reliably peeled off from the release sheet. can do. Further, 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, it is possible to prevent the structure of the apparatus from becoming complicated and the entire apparatus from being enlarged. Even if it is not a raw fabric in which a release sheet previously divided into two in the width direction is adopted, it is possible to cope with it. Therefore, the adhesive sheet can be reliably peeled from the release sheet with a simple structure.

In the present invention, if a holding means for holding the adhesive sheet from the base sheet side is provided, the adhesive sheet can be once held by the holding means and then attached to the adherend. Can be affixed to the body.
Further, in the present invention, if the holding means is movably provided in the same direction as the original web feeding direction and at the same speed as the original web feeding speed, the release sheet is adhered while holding the adhesive sheet by the holding means. In addition to being able to be deformed in a direction away from the sheet, the adhesive sheet is held until it is peeled off from the release sheet, so that the adhesive sheet can be reliably peeled off, and the peeled adhesive sheet is held by a holding means, It can be reliably affixed to the body.

The side view of the sheet sticking apparatus which concerns on 1st Embodiment of this invention. The fragmentary perspective view of the sheet sticking apparatus of FIG. (A) is a figure which shows the state at the time of peeling of an adhesive sheet, (B) is AA sectional drawing of (A). The fragmentary perspective view of the sheet sticking apparatus which concerns on 2nd Embodiment of this invention. The side view of the sheet sticking apparatus which concerns on 3rd Embodiment of this invention.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second and subsequent embodiments, the same constituent members as those described in the first embodiment and constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. The description of is omitted or simplified.
In addition, for example, expressions that indicate directions such as up, down, left, right, front, and back, which are not explicitly described in each embodiment, are all used with reference to FIG.

[First Embodiment]
As shown in FIG. 1 and FIG. 2, the sheet sticking device 1 of the present embodiment peels the adhesive sheet S temporarily attached to one surface of the strip-shaped release sheet RL from the release sheet RL and peels it off. S is affixed to the adherend W. 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 sticking device 1 is held by a sheet peeling device 2 that peels the adhesive sheet S from the release sheet RL of the raw fabric R, a suction plate 6 as a holding means for holding the peeled adhesive sheet S, and a suction plate 6. And pressing means 3 that presses and adheres the adhesive sheet S to the adherend W. The sheet peeling apparatus 2 includes a feeding unit 4 that feeds out the original fabric R, and a peel plate 5 as a peeling unit that peels off the adhesive sheet S from the release sheet RL by folding back the released release sheet RL of the original fabric R. I have.

  The entire feeding means 4 is supported by the frame 7. The feeding means 4 includes a support roller 41 for winding and supporting the original fabric R in a roll shape, a guide roller 42A for guiding the original fabric R, a brake roller 44 driven by a rotation motor 43 as a drive device, A pinch roller 45 that sandwiches the original fabric R between the brake roller 44, a guide roller 42B that guides the release sheet RL from which the adhesive sheet S has been released, and a drive roller 47 that is driven by a rotation motor 46 as a drive device. A pinch roller 48 that sandwiches the release sheet RL between the drive roller 47 and a recovery roller 49 that recovers the release sheet RL by a driving device (not shown). The rotation motors 43 and 46 are constituted by motors capable of controlling the rotation speed control and the rotation torque of the respective output shafts, and constitute tension applying means.

  The peel plate 5 intersects the guide surface 51 that guides the original fabric R from the release sheet RL side, the bent edge 52 that bends the release sheet RL of the original fabric R, and the guide surface 51 along the bent end edge 52. And a plurality of first protrusions 53 protruding upward. Moreover, the 1st protrusion part 53 is formed so that the protrusion amount from the guide surface 51 may become large as it goes to the bending edge 52 from the upstream of the feed direction of the original fabric R.

The suction disk 6 has a plurality of suction ports (not shown), and is configured so that the adhesive sheet S can be sucked and held from the base sheet BS side by the suction ports.
The pressing means 3 is provided on a linear motion motor 31 as a drive device supported by a frame (not shown) and a slider 32 of the linear motion motor 31, and its output shaft 34 is fixed to the upper surface of the suction plate 6. A linear motion motor 33 as a device is provided.

In the above sheet sticking apparatus 1, the procedure for peeling the adhesive sheet S from the release sheet RL and sticking the peeled adhesive sheet S to the adherend W will be described.
First, as shown in FIG. 1, the original fabric R is passed, and the feeding means 4 drives the rotation motor 46 to rotate the drive roller 47 to feed the original fabric R. When feeding the original fabric R, the feeding means 4 drives the rotation motor 43 and applies a predetermined tension to the original fabric R via the brake roller 44. Specifically, the brake roller 44 applies a force to the original fabric R in a direction opposite to the supply direction with a force smaller than the force with which the drive roller 47 extends the original fabric R. The unrolled original fabric R is guided in the unwinding direction along the guide surface 51 of the peel plate 5, and the leading end side of the adhesive sheet S in the unwinding direction reaches the first protrusion 53. Thereafter, when the unwinding of the raw fabric R is continued, as shown in FIGS. 3A and 3B, the release sheet RL is such that the portion of the release sheet RL located on the extension line in the protruding direction of the first protruding portion 53 is the first protruding portion 53. On the other hand, the other portions are pulled by the tension and deformed in a direction away from the adhesive sheet S. Then, when the adhesive sheet S partially peels from the release sheet RL and the leading end side in the feeding direction of the adhesive sheet S reaches the vicinity of the bent edge 52 of the peel plate 5, as shown by the solid line in FIG. The anti-R feeding operation is temporarily stopped to enter a standby state.

  Next, 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 lower position in front of the peel plate 5. When it is confirmed that the adherend W has stopped, the sheet sticking device 1 applies a tension to the original fabric R by the rotation motors 43 and 46 in the same manner as described above while performing suction at a suction port (not shown) of the suction disk 6. The adhesive sheet S is fed out while being applied. At this time, since a part of the adhesive sheet S is intermittently peeled from the release sheet RL along the bent edge 52, the adhesive sheet S is easily peeled from the release sheet RL, and the bent edge 52 is removed. When it passes, the release sheet RL is reliably peeled off and sucked and held by suction of the suction disk 6.

  At this time, as shown by a two-dot chain line in FIG. 3, the pressing means 3 drives the linear motion motor 31 in a state where the suction disk 6 sucks and holds the adhesive sheet S, and is the same as the feeding direction of the original fabric R. In order to move the suction plate 6 at the same speed as the feeding speed of the original fabric R, the adhesive sheet S is continuously held by the suction plate 6 until it is peeled from the release sheet RL. It will come off reliably.

When the suction plate 6 moves to a predetermined position on the adherend W as indicated by a two-dotted line in FIG. 1, the linear motor 33 lowers the suction plate 6 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 sticking apparatus 1 lifts the suction plate 6 with the linear motion motor 33 after releasing the suction and holding of the adhesive sheet S by the suction plate 6. 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 sheet sticking apparatus 1 deforms the release sheet RL intermittently along the bent edge 52 in a direction away from the adhesive sheet S, the sheet sticking apparatus 1 is peeled in a state where a part of the adhesive sheet S is peeled from the release sheet RL. The sheet RL can be bent, and the adhesive sheet S can be reliably peeled from the release sheet RL even if the raw sheet R has a very strong temporary attachment force of the adhesive sheet S to the release sheet RL. Moreover, since it is not necessary to send out peeling sheet RL in the left-right direction with respect to the feeding direction, the structure of the sheet sticking apparatus 1 can be simplified.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The peel plate 5 in the sheet sticking apparatus 1A of the present embodiment is different from the first embodiment in that it includes a second protrusion 54 instead of the first protrusion 53 as a deformation means.
That is, a plurality of second projecting portions 54 projecting in the direction of the guide surface 51 are formed on the bent edge 52 of the peel plate 5, and the second projecting portions 54 constitute deformation means. Also in the sheet sticking apparatus 1A including such a peel plate 5, the release sheet RL is pulled away from the adhesive sheet S by pulling the portions other than the second projecting portion 54 to the right, that is, the recessed direction with respect to the projecting by tension. In order to deform | transform, the peeling sheet RL is bend | folded in the state which peeled a part of adhesive sheet S from the peeling sheet RL, and the adhesive sheet S is peeled reliably from the peeling sheet RL.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.
The sheet sticking apparatus 1B of this embodiment is different from the first and second embodiments in that a pressing roller 8 is provided instead of the pressing means 3 as a pressing means.
That is, the sheet sticking apparatus 1B of the present embodiment includes the sheet peeling apparatus 2 and the pressing roller 8, and the sheet peeling apparatus 2 includes the feeding means 4 and the peel plate 5 of the first or second embodiment. (FIG. 5 shows the peel plate 5 of the first embodiment). The pressing roller 8 is made of an elastically deformable member such as rubber or resin, and is rotatably supported by a frame (not shown).

  In the above sheet sticking apparatus 1B, when the sensor (not shown) detects that the adherend W on the conveyance path CV has reached a predetermined position below the peel plate 5, the sheet sticking apparatus 1B rotates as described above. The driving motors 47 and 46 are driven to rotate the driving roller 47, and the original fabric R is fed out in synchronization with the movement of the conveying path CV. Then, since the release sheet RL is pulled and bent in a state where the portion near the bent edge 52 of the adhesive sheet S is partially peeled, the adhesive sheet S is reliably peeled from the release sheet RL. Then, the peeled adhesive sheet S is pressed against the upper surface of the adherend W by the pressing roller 8 and attached to the adherend W.

  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, the deformation means may be provided in a width corresponding to the entire width of the adhesive sheet S, or may not be provided in a width corresponding to the entire width of the adhesive sheet S. That is, when the width of the peeling initial region such as an ellipse, a circle, or a rhombus is smaller than the entire width of the adhesive sheet S, the deformation means may not necessarily have a width corresponding to the entire width of the adhesive sheet S. This is because the adhesive sheet S can be easily peeled from other areas as long as it can be peeled off even in the initial peeling area. Thus, in the case of the adhesive sheet S having a narrow width of the initial peeling region, it is possible to cope with the first projecting portion 53 and the second projecting portion 54 constituting the deformation means even if there is a single number instead of a plurality.
Furthermore, the peel plate 5 which combined the 1st protrusion part 53 and the 2nd protrusion part 54 is also employable.
Further, in order to facilitate the deformation of the release sheet RL in the direction away from the adhesive sheet S, heating means such as a coil heater or an infrared heater is provided in the peel plate 5 or in the vicinity of the first and second protrusions 53 and 54. You may comprise so that it may provide.

  In the first and second embodiments, the tension is applied to the release sheet RL by the rotation motor 43 and the brake roller 44. However, the means for applying the tension to the release sheet RL is not limited thereto. The support roller 41 may be configured to be driven by a rotation motor, and a rotational speed difference or torque difference may be applied between the support roller 41 and the drive roller 47 to apply tension to the release sheet RL.

  In the first and second embodiments, the adhesive sheet S that is peeled from the release sheet RL by the peel plate 5 is temporarily held by the suction plate 6 and the adhesive sheet S held by the suction plate 6 is pressed against the adherend W. Although the pressing means 3 for applying is shown, the pressing means may be, for example, a so-called air jet type in which the adhesive sheet S held by the suction plate 6 is blown off with compressed air and attached to the adherend. In the first and second embodiments, the linear motion motor 33 that raises and lowers the suction plate 6 is moved in the feeding direction of the adhesive sheet S by the linear motion motor 31, but the linear motion motor 31 is not employed. The linear motor 33 may be fixed downstream of the bent end edge 52 (position indicated by a two-dot chain line in FIG. 1).

  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.

1, 1A, 1B Sheet sticking device 2 Sheet peeling device 3 Pressing means 4 Feeding means 5 Peel plate (peeling means)
6 Suction board (holding means)
8 Pressing roller (pressing means)
51 Guide surface 52 Bent edge 53 First protrusion (deformation means)
54 Second protrusion (deformation means)
AD Adhesive layer BS Base sheet R Original fabric RL Release sheet S Adhesive sheet W Substrate

Claims (8)

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;
A peeling means for peeling the adhesive sheet from the original peeling sheet fed by the feeding means,
The peeling means includes a bent edge that bends the release sheet, and a deformation means that is provided along the bent edge and deforms the release sheet in a direction away from the adhesive sheet. The sheet peeling apparatus characterized by the above-mentioned. The peeling means includes a guide surface for guiding the original fabric from the release sheet side,
The sheet peeling apparatus according to claim 1, wherein the deformation unit includes a first protruding portion that protrudes in a direction intersecting the guide surface. The peeling means includes a guide surface for guiding the original fabric from the release sheet side,
The sheet peeling apparatus according to claim 1, wherein the deforming unit includes a second projecting portion that projects in the guide surface 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,
A sheet peeling method comprising: bending the release sheet and peeling the adhesive sheet from the release sheet while partially deforming the fed release sheet in a direction away from the adhesive sheet. 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;
A peeling means for peeling the adhesive sheet from the original peeling sheet fed by the feeding means;
A pressing means for pressing and adhering the adhesive sheet peeled off by the peeling means to the adherend,
The peeling means includes a bent edge that bends the release sheet, and a deformation means that is provided along the bent edge and deforms the release sheet in a direction away from the adhesive sheet. The sheet sticking apparatus characterized by the above-mentioned.   6. The sheet sticking apparatus according to claim 5, further comprising holding means for holding the adhesive sheet from the base sheet side.   The said pressing means is provided in the same direction as the feeding direction of the original fabric, and is provided so as to be able to move the holding means at the same speed as the feeding speed of the original fabric. Sheet pasting device. 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,
While partially deforming the rolled-out original release sheet in a direction away from the adhesive sheet, the adhesive sheet is released from the release sheet by bending the release sheet,
A sheet sticking method, wherein the peeled adhesive sheet is pressed and stuck to an adherend.

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