JP2011031898A - Sheet sticking device and sticking method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet sticking device and a sticking method by which the structure of the device can be simplified and reduced in size and a sheet can be securely stuck by preventing a sticking failure. <P>SOLUTION: Gas sucked from the suction holes 43 of a suction cup 4 sucking and holding an adhesive sheet S is supplied to a blowing pipe 7. This eliminates the need to separately install a compressor used for supplying gas to the blowing pipe 7. By this the structure of the sheet sticking device 1 is simplified and the size of the device 1 is reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sheet sticking apparatus and a sticking method for sticking an adhesive sheet to an adherend.

  Conventionally, as an example of a sheet sticking device, a label sticking device for sticking a label such as a product name or a barcode to a product conveyed by a conveyor or the like is used (for example, see Patent Document 1). This affixing device is attached to the suction plate, a peeling plate for peeling the label temporarily attached to the belt, a suction plate for sucking and holding the peeled label, a negative pressure generator for applying suction to the suction plate, and a suction plate. Accordingly, an air blowing pipe that blows air on the label while following the movement of the suction disk to complement the adsorption holding of the label, and a compressor as an air supply source of the air blowing pipe are configured. In this sticking device, when the label is peeled off from the belt-like mount and sucked and held on the suction board, air is blown to the label that is bent by its own weight as it is peeled off from the belt-like mount so Prevents bending and dropping, and prevents label sticking failure such as bending and sticking to the adherend by label bending and sticking to the adherend, or label unattached by dropping the label It is supposed to be.

Japanese Utility Model Publication No. 6-37112

  By the way, in the conventional label sticking apparatus, since the negative pressure generator which gives suction force to an adsorption board and the compressor as an air supply source of an air blowing pipe are required separately, the structure of an apparatus may become complicated. Inconvenience such as enlargement occurs. In addition, a large compressor may be commonly used to drive a plurality of labeling apparatuses, but since a large amount of air is consumed for blowing air, a plurality of labeling apparatuses are driven simultaneously. When the air capacity is insufficient, air drive devices such as air cylinders are not driven at normal timing, or a predetermined output cannot be obtained, resulting in frequent label sticking failures. Occurs.

  An object of the present invention is to provide a sheet sticking apparatus and a sticking method that can simplify and miniaturize the structure of the apparatus, and can reliably stick a sheet while preventing poor sticking.

  In order to achieve the above object, the sheet sticking device of the present invention is a sheet sticking device for sticking an adhesive sheet having an adhesive layer on one surface side of a base sheet to an adherend. With respect to the adhesive sheet sent out from the peeling means, the feeding means for feeding out the temporarily attached adhesive sheet together with the release sheet, the peeling means for feeding the adhesive sheet while peeling the adhesive sheet from the release sheet, A holding means for sucking and holding through the suction hole from the other surface side of the base sheet, a suction means for applying a suction force to the suction hole by sucking a gas from the suction hole, and a feeding means from the peeling means A spraying means for blowing gas to the adhesive layer side with respect to the adhesive sheet, and a pressure for pressing and adhering the adhesive sheet adsorbed and held by the holding means to the adherend And stage, the suction means is employed the configuration that includes a circulation unit that circulates the gas sucked from the suction holes in the blowing device.

At this time, in the sheet sticking device of the present invention, a negative pressure releasing means for releasing the negative pressure state in which the adhesive sheet is sucked by the holding means is provided in the middle of the path from the holding means to the suction means. It is preferable.
In the sheet sticking device of the present invention, the negative pressure releasing means is connected to a pressing means that functions as the pressing means by pressing the adhesive sheet held by the holding means with gas. preferable.
Furthermore, in the sheet sticking device of the present invention, it is preferable that pressure adjusting means for adjusting the pressure of the spraying means is provided in the middle of the circulating means.

  On the other hand, the sheet sticking method of the present invention is a sheet sticking method for sticking an adhesive sheet having an adhesive layer on one surface side of a base material sheet to an adherend, which is temporarily attached to a strip-shaped release sheet. A step of feeding the adhesive sheet together with the release sheet; a step of feeding the adhesive sheet while peeling the adhesive sheet from the release sheet; and a suction hole from the other surface side of the base sheet with respect to the delivered adhesive sheet A step of adsorbing and holding through the holding means, a step of applying a suction force to the suction hole by sucking the gas from the suction hole, and a circulation of the gas sucked from the suction hole and the delivery of the gas A step of blowing gas to the adhesive layer side with respect to the adhesive sheet, and a step of pressing and adhering the adhesive sheet adsorbed and held by the holding means to the adherend. And butterflies.

According to the present invention as described above, since the gas sucked by the suction means is supplied to the spraying means via the circulation means, it is not necessary to separately install a compressor or the like for supplying gas to the spraying means. In addition to simplifying the structure, it is possible to reduce the size of the apparatus, and it is possible to prevent other air-driven devices from becoming insufficient in air capacity, thereby preventing defective label sticking.
Further, since the gas sucked by the suction means is used by the spraying means, energy that has been discarded in the past can be reused, and an energy-saving sheet sticking device can be provided.
Further, by having the negative pressure releasing means, after the adhesive sheet sucked and held by the holding means is pressed against the adherend, the holding means can be easily separated from the adhesive sheet by releasing the suction force of the holding means.
Further, the holding means is pressurized by the pressurizing means to change from a negative pressure state to a positive pressure state, and gas is discharged from the suction hole, whereby the adhesive sheet held by the holding means is pressed with gas to the adherend. The adhesive sheet can be attached to the adherend without the pressing means contacting the adherend.
Further, by supplying a part or all of the gas sucked by the suction means to the spraying means via the pressure adjusting means, the gas blown from the spraying means can be maintained at a predetermined pressure, and the suction of the suction means Since it is possible to prevent the force from being affected, it is possible to prevent insufficient adhesion of the sheet by avoiding insufficient suction force and the like.

The schematic block diagram of the sheet sticking apparatus which concerns on 1st Embodiment of this invention. The perspective view which shows the spraying operation | movement in the sheet sticking apparatus of FIG. (A)-(C) are operation | movement explanatory drawings of the sheet sticking apparatus of FIG. The figure of the sheet sticking apparatus which concerns on 2nd Embodiment. The figure of the sheet sticking apparatus which concerns on 3rd Embodiment.

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 the constituent members having the same functions are denoted by the same reference numerals as those in the first embodiment. Those descriptions are omitted or simplified.

[First Embodiment]
In FIG. 1, a sheet sticking apparatus 1 sticks an adhesive sheet S to an adherend W, and feeds out the adhesive sheet S temporarily attached to a strip-like release sheet RL as a feeding means for feeding out the adhesive sheet S together with the release sheet RL. A peel plate 3 as a peeling means for feeding out the adhesive sheet S while peeling the adhesive sheet S from the release sheet RL, a suction plate 4 as a holding means for holding the adhesive sheet S by suction, and a suction plate 4 And an air cylinder 5 as pressing means for pressing and adhering the adhering adhesive sheet S to the adherend W. Here, in the adhesive sheet S, an adhesive layer is provided on one surface of the base sheet, and a surface on which the adhesive layer is exposed is an adhesive surface S1, and the other surface of the base sheet (adhesive layer) Is a non-adhesive surface S2, and is temporarily attached to the release sheet RL via the adhesive surface S1.

  Further, the sheet sticking apparatus 1 adheres to the centrifugal fan 6 as a suction means for applying a suction force to the suction hole 43 of the suction disk 4 and the adhesive sheet S being transferred from the peel plate 3 to the suction disk 4. A spray pipe 7 as a spray means for blowing gas on the surface S1 side, and a pipe 8 as a circulation means (circulation path) for circulating the gas sucked from the suction disk 4 by the centrifugal fan 6 to the spray pipe 7 are configured. Has been. A three-way valve 10 as a negative pressure releasing means for releasing the negative pressure state in which the adhesive sheet S is sucked by the suction plate 4 is provided in the middle of the pipe 9 that is a path from the suction plate 4 to the centrifugal fan 6. A pressure regulator 11 is provided between the centrifugal fan 6 and the pipe 8 as pressure regulating means for regulating the gas blowing pressure of the blowing pipe 7.

  The feeding unit 2 is supported by a frame (not shown). In this frame, a supporting roller 21 that supports the adhesive sheet S temporarily attached to the release sheet RL in a roll shape, and the release sheet RL and the adhesive sheet S are supported. Two guide rollers 22 and 23 to be guided, a driving roller 25 driven by a motor 24, a pinch roller 26 sandwiching the release sheet RL between the drive rollers 25, and a release means RL are collected by a driving means (not shown). A collection roller 27 is provided.

  The peel plate 3 peels the adhesive sheet S from the release sheet RL folded back to the drive roller 25 side by driving the driving roller 25 by the motor 24 of the feeding unit 2 and pulling the release sheet RL, and the peeled adhesive sheet. S is pushed out in the surface direction to project in a cantilevered manner, and the adhesive sheet S is sent out to the suction disk 4 side.

  As shown in FIG. 3, the suction disk 4 is provided on a holding surface 41 for sucking and holding the adhesive sheet S from the non-bonding surface S <b> 2 by a plurality of suction holes 43, and on the opposite side (upper side) of the holding surface 41. An upper surface portion 42 and a chamber portion 44 provided inside the suction disk 4 are formed. In addition, the air cylinder 5 is supported by a frame (not shown), and its output shaft 51 is fixed to the upper surface portion 42 of the suction disk 4, and the air cylinder 5 is driven forward and backward in the vertical direction (pressing direction), thereby attracting the air cylinder 5. The board 4 is movable up and down.

  A pipe 9 </ b> A is connected to the suction board 4 through a hole in the upper surface portion 42, and this pipe 9 </ b> A is connected to the three-way valve 10. The three-way valve 10 is connected to a suction port of a centrifugal fan 6 via a pipe 9B. By operating the centrifugal fan 6, gas is sucked from a plurality of suction holes 43 of the suction plate 4. . Moreover, the piping 12 open | released to air | atmosphere is connected to one opening other than two to which piping 9A, 9B was connected among three openings of the three-way valve 10. FIG. The three-way valve 10 is configured to switch between a suction state in which the pipe 9A and the pipe 9B are communicated and a negative pressure release state in which the pipe 9A and the pipe 12 are communicated by operating an internal valve (not shown). ing.

A pressure regulator 11 is connected to the exhaust port of the centrifugal fan 6, and a blowing pipe 7 is connected to one of the two outlets of the pressure regulator 11 via a pipe 8.
As shown in FIG. 2, the spray pipe 7 is formed in a tubular shape with one end closed, and a pipe 8 from the pressure regulator 11 is connected to the other end. The spray pipe 7 is formed to have a plurality of spray holes 71 for blowing out the gas supplied from the pipe 8, and the gas sucked by the centrifugal fan 6 is connected to the plurality of spray holes 71 via the pressure regulator 11 and the pipe 8. 1 is blown obliquely upward in FIG. 1, and this gas is blown onto the adhesive sheet S. In addition, a pipe 13 is connected to the other outlet of the pressure regulator 11, and a relief valve of the pressure regulator 11 is operated so that a part of the gas sucked by the centrifugal fan 6 passes through the pipe 13 to the atmosphere. The gas blown from the spray tube 7 is kept at a predetermined pressure.

Hereinafter, the operation procedure of the sheet sticking apparatus 1 will be described with reference to FIG. 3 as a method for sticking the adhesive sheet S to the adherend W.
First, as shown in FIG. 2, when the adherend W is conveyed in the direction indicated by A1 in the figure by the conveying means CV such as a conveyor, it is detected by a sensor (not shown) and is located at a predetermined position below the suction plate 4. Then, the conveyance of the adherend W is stopped. When the conveyance stop of the adherend W is confirmed, as shown in FIG. 3A, the peeling sheet RL and the adhesive sheet S are fed out by the feeding unit 2, and the fed-off peeling sheet RL is folded back by the peel plate 3. The adhesive sheet S is peeled from the release sheet RL and sent out along the holding surface 41 of the suction disk 4. On the other hand, the centrifugal fan 6 sucks gas from the plurality of suction holes 43 of the suction plate 4 and sends the sucked gas to the pressure regulator 11, whereby the gas is supplied to the blowing pipe 7 via the pressure regulator 11 and the pipe 8. The gas is blown from the plurality of blowing holes 71 obliquely upward in the feeding direction of the adhesive sheet S. Thus, while sending out the adhesive sheet S, the adhesive sheet S can be prevented from being bent or dropped by its own weight by blowing the gas from below to the adhesive surface S1 side.

  That is, while the adhesive sheet S is being sent out from the peel plate 3 toward the suction disk 4, the adhesive sheet S is not blocked until all the suction holes 43 are blocked and held. Since the gas is sucked from the suction holes 43 and the suction force by the suction disk 4 is not sufficient, the adhesive sheet S may hang down or fall due to its own weight. For this reason, until all the suction holes 43 of the suction disk 4 are closed and the adhesive sheet S is sucked and held, the gas is blown from the spray tube 7 to the adhesive sheet S, and the holding of the adhesive sheet S is assisted from below. The adhesive sheet S is prevented from being bent and dropped, and is sucked and held on the suction disk 4 in an appropriate state.

  Next, as shown in FIG. 3B, the entire non-adhesive surface S2 of the adhesive sheet S overlaps the holding surface 41 of the suction disk 4 and reaches the predetermined holding position that closes all of the plurality of suction holes 43. Is sucked out, the suction disk 4 sucks and holds the adhesive sheet S in the chamber 44 due to a negative pressure. At this time, since all the suction holes 43 are closed with the adhesive sheet S, the suction of the gas from the suction holes 43 stops, the inside of the pipe 9 becomes negative pressure, and the gas is also sent to the spray pipe 7. Since it disappears, the blowing of the gas from the spray pipe 7 will also be stopped.

Next, as shown in FIG. 3C, the sheet sticking device 1 drives the air cylinder 5 and moves the output shaft 51 downward to lower the suction plate 4 and attach the adhesive sheet to the adherend W. Press S. After the adhesive sheet S is attached to the adherend W in this way, the three-way valve 10 is operated to introduce gas into the chamber portion 44 through the piping 12 and the piping 9A (the chamber portion 44 is set to atmospheric pressure). Then, the negative pressure in the chamber 44 is released. When the air cylinder 5 is driven to separate the suction plate 4 from the adhesive sheet S, the adhesive sheet S is attached to the adherend W.
When the application of the adhesive sheet S to the adherend W is completed as described above, the adherend W to which the adhesive sheet S is attached is conveyed by the conveying means CV and the next adherend W is conveyed. As a result, the same operation as described above is repeated.

According to this embodiment as described above, the following effects are obtained.
That is, since the gas sucked by the centrifugal fan 6 from the suction hole 43 of the suction plate 4 is supplied to the spray pipe 7 via the pipe 8, there is no need to separately install a compressor for supplying gas to the spray pipe 7. The structure of the sticking device 1 can be simplified, and the sheet sticking device 1 can be downsized. Further, since it is possible to distinguish between an air supply source such as a compressor that supplies gas to the air cylinder 5 and an air supply source that supplies gas to the spray pipe 7, a large amount of air is consumed due to the air blowing. The inconvenience that the cylinder 5 is not driven at a normal timing or a predetermined output cannot be obtained to cause a sticking failure of the adhesive sheet S is eliminated.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The sheet sticking apparatus 1A of the present embodiment is different from the sheet sticking apparatus 1 of the first embodiment in the configuration of the pressing means, and the adhering plate 4 does not come into contact with the adherend W, and does not contact the adhesive sheet S. Can be affixed to the adherend W, but other configurations are the same as in the first embodiment.
That is, as shown in FIG. 4A, the pipe 12 from the three-way valve 10 is provided with a centrifugal fan 15 as a pressurizing means, and the pressing means is constituted by the pressurized gas from the centrifugal fan 15. .
Then, as in the first embodiment, when the adherend W is stopped at a predetermined position, as shown in FIG. 4 (B), the sheet sticking device 1A drives the air cylinder 5 so that the suction plate 4 is moved. It is lowered and stopped above the adherend W at a predetermined interval. At this time, the air cylinder 5 is preferably one that can be stopped in the middle. Next, by the operation of the three-way valve 10, the pressurized gas from the centrifugal fan 15 is introduced into the chamber portion 44 through the pipes 12 and 9 </ b> A, and the adhesive sheet S adsorbed and held by the adsorption plate 4 is applied to the adherend W. It blows away and presses and sticks to the adherend W.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.
In the sheet sticking device 1B of the present embodiment, instead of the centrifugal fan 15 as the pressurizing unit used in the second embodiment, a pressurizing unit that functions as a pressing unit is configured by the pressurized gas from the centrifugal fan 6, A four-way valve 17 provided in place of the three-way valve 10, a three-way valve 18 provided in the middle of the pipe 8, and a pipe 19 connecting the four-way valve 17 and the three-way valve 18 are configured. As shown in FIG. 5 (A), the four-way valve 17 communicates the suction state in which the pipe 9A and the pipe 9B are communicated with each other and the pipe 20 and the pipe 9B that are open to the atmosphere as shown in FIG. 5 (B). And the pressurization state in which the pipe 9A and the pipe 19 are communicated with each other can be switched. On the other hand, as shown in FIG. 5 (A), the three-way valve 18 has a blowing state in which the pipe 8 from the pressure regulator 11 communicates with the blowing pipe 7 side, and the pipe 8 from the pressure regulator 11 to the pipe 19 side. The pressurization state to be communicated is configured to be switchable.

In the above sheet sticking apparatus 1B, as shown in FIG. 5 (A), the four-way valve 17 is set in the suction state and the three-way valve 18 is set in the blowing state, and then the centrifugal fan 6 is operated, whereby the sheet sticking apparatus 1A. In the same manner as described above, the adhesive sheet S is sucked and held by the suction disk 4.
As in the second embodiment, when the suction disk 4 is stopped at a predetermined interval above the stopped adherend W, as shown in FIG. 5 (B), the four-way valve 17 and the three-way valve 18 is switched to the pressurized state, and the pressurized gas from the centrifugal fan 6 is introduced into the chamber portion 44 through the pipes 8, 19, 9 A, and the adhesive sheet S adsorbed and held by the suction disk 4 is attached. It blows off and presses toward the body W, and is 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, in the above-described embodiment, the adhesive sheet S is sent out along the holding surface 41 provided on the lower surface of the suction disk 4, and gas is blown obliquely from below to the lower surface side (adhesive layer side) of the adhesive sheet S that is being sent out. However, the feeding direction of the adhesive sheet, the gas blowing direction by the blowing means, and the like are not limited to the above embodiment. That is, the adhesive sheet may be sent out in the vertical direction or in an appropriate oblique direction, or the adhesive sheet may be sent out in an arbitrary direction in a state where the surface direction of the adhesive sheet is not horizontal but is vertical or appropriately inclined. Good. Moreover, what is necessary is just to set suitably according to the sending-out direction of an adhesive sheet also as a blowing direction of the gas by a blowing means, and you may comprise so that gas may be blown in the up-down direction or a suitable diagonal direction.
Moreover, in the said embodiment, the to-be-adhered body W is located below the suction disk 4, and the suction disk 4 is lowered | hung toward this adherend W, an adhesive sheet is pressed, or it adhere | attaches with the gas by a pressurization means Although an example in which the pressing direction of the adhesive sheet is downward, such as pressing the sheet downward and pressing, has been described, the pressing direction is not limited to downward, and may be upward, lateral, or an appropriate oblique direction.

Moreover, in the said embodiment, although the to-be-adhered body W and the adhesive sheet S are not illustrated concretely, in the sheet sticking apparatus (sticking method) of this invention, the kind, material, etc. of an to-be-adhered body and an adhesive sheet are as follows. For example, the adherend may be an appropriate article (for example, a cardboard case or a resin container), the adhesive sheet may be a label, the adherend is a semiconductor wafer, and the adhesive sheet 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 wafer, a compound wafer, and the like. The adhesive sheet to be attached to such a wafer is not limited to a protective sheet, dicing tape, and die attach film, but any other sheet, film, tape. An adhesive sheet having an arbitrary use and shape can be applied. Further, the adherend may be an optical disk substrate, and the adhesive sheet may have a resin layer constituting the recording layer. As described above, as the adherend, not only a glass plate, a steel plate, a resin plate, and other plate-like members, but also members and articles in any form can be targeted.
Furthermore, the suction means can be exemplified by a sirocco fan, a blower or the like, and any suction means that generates a positive pressure when generating a negative pressure can be employed for the suction means.
Further, the peeling means may use a roller other than the peel plate 3.

1,1A, 1B Sheet sticking device 2 Feeding unit (feeding means)
3 Peel plate (peeling means)
4 Suction plate (holding means)
5 Air cylinder (pressing means)
6 Centrifugal fan (suction means, pressurization means)
7 Spray tube (spraying means)
8 Piping (circulation means)
9 Piping (route)
10 Three-way valve (negative pressure release means)
11 Pressure regulator (pressure adjustment means)
15 Centrifugal fan (pressurizing means)
S adhesive sheet W adherend RL release sheet

Claims (5)

A sheet sticking device for sticking an adhesive sheet having an adhesive layer on one side of a base sheet to an adherend,
A feeding means for feeding the adhesive sheet temporarily attached to a strip-shaped release sheet together with the release sheet;
Peeling means for feeding the adhesive sheet while peeling the adhesive sheet from the peeling sheet;
Holding means for adsorbing and holding the adhesive sheet fed from the peeling means from the other surface side of the base sheet through a suction hole;
A suction means for applying a suction force to the suction hole by sucking a gas from the suction hole;
Spraying means for blowing gas to the adhesive layer side with respect to the adhesive sheet fed from the peeling means;
A pressing means for pressing and adhering the adhesive sheet adsorbed and held by the holding means to the adherend;
A sheet sticking apparatus comprising: a circulation means for circulating the gas sucked from the suction hole by the suction means to the spraying means.   The negative pressure releasing means for releasing the negative pressure state in which the adhesive sheet is sucked by the holding means is provided in the middle of the path from the holding means to the suction means. Sheet pasting device.   The sheet according to claim 2, wherein the negative pressure releasing means is connected to a pressing means that functions as the pressing means by pressing the adhesive sheet held by the holding means with gas. Pasting device.   The sheet sticking device according to any one of claims 1 to 3, wherein pressure adjusting means for adjusting the pressure of the spraying means is provided in the middle of the circulation means. A sheet sticking method for sticking an adhesive sheet having an adhesive layer on one side of a base sheet to an adherend,
Extending the adhesive sheet temporarily attached to the strip-shaped release sheet together with the release sheet;
Sending the adhesive sheet while peeling the adhesive sheet from the release sheet;
A step of sucking and holding via the holding means through the suction hole from the other surface side of the base sheet to the adhesive sheet to be sent out;
Applying a suction force to the suction hole by sucking a gas from the suction hole;
Circulating the gas sucked from the suction hole, and blowing the gas to the adhesive layer side with respect to the adhesive sheet to be delivered; and
And a step of pressing and adhering the adhesive sheet adsorbed and held by the holding means to the adherend.

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