JP2016175732A - Sheet supply device and sheet supply method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely peel an adhesive sheet from a peelable sheet and, moreover, to prevent, as much as possible, a peelable sheet from being cut.SOLUTION: A sheet supply device that peels an adhesive sheet from an original sheet formed by temporarily attaching the adhesive sheet on one side of a belt-like peelable sheet and supplies the adhesive sheet, comprises: drawing means that draws the original sheet; and peeling means that is in contact with the other side of the peelable sheet and bends the peelable sheet by means of a bending member, thereby peeling the adhesive sheet from the peelable sheet. The peeling means has peeling-initiation-part formation means that moves relative to the bending member, thereby allowing a penetration member to penetrate, the peelable sheet, bent by the bending member, from the other side of the peelable sheet, thus forming a peeling initiation part at the leading end of the adhesive sheet.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sheet supply apparatus and a sheet supply method.

  2. Description of the Related Art Conventionally, an apparatus that temporarily attaches an adhesive sheet to one surface of a release sheet and peels the adhesive sheet from the release sheet is known. In such an apparatus, there is disclosed a peeling method in which a large number of needle members are provided on a peeling roll, and the needle sheet is passed through the peeling sheet so that the adhesive sheet (label) can be reliably peeled from the peeling sheet. (For example, Patent Document 1).

JP 2006-082812 A

  However, in the peeling apparatus described in Patent Document 1, although the adhesive sheet can be reliably peeled from the release sheet, the needle sheet forms innumerable through holes in the entire release sheet, so the release sheet is cut and the adhesive sheet There is a disadvantage that it becomes impossible to supply.

  An object of the present invention is to provide a sheet supply apparatus and a sheet supply method that can reliably peel an adhesive sheet from a release sheet and can prevent the release sheet from being cut as much as possible.

  In order to solve the above-described problems, the present invention provides a sheet supply apparatus for peeling and supplying an adhesive sheet from an original sheet in which an adhesive sheet is temporarily attached to one surface of a strip-shaped release sheet. A feeding means that feeds out, and a peeling means that comes into contact with the other surface of the release sheet and folds the release sheet with a bending member, thereby peeling the adhesive sheet from the release sheet. Peeling which penetrates the penetrating member from the other surface side of the release sheet bent by the bending member and forms a peeling trigger portion at the tip of the adhesive sheet by moving relative to the bending member A sheet supply apparatus including a trigger portion forming unit.

  The penetrating member may include a jet outlet that ejects gas from a penetrating tip that penetrates the release sheet.

  The penetrating member may include a cutting unit that allows the raw material to be fed out while penetrating the release sheet.

  Another aspect of the present invention is a sheet supply method in which the adhesive sheet is peeled off and supplied from the original fabric in which the adhesive sheet is temporarily attached to one surface of the strip-shaped release sheet, and the step of feeding the original fabric, A peeling step of peeling the adhesive sheet from the release sheet by contacting the other surface of the release sheet and bending the release sheet with a bending member. And moving relative to each other so as to penetrate the penetrating member from the other surface side of the release sheet folded by the bending member, and forming a peeling trigger portion at the tip of the adhesive sheet. This is a sheet supply method.

  According to the present invention, since the peeling trigger part can be formed without providing innumerable through holes in the release sheet, the adhesive sheet can be reliably peeled from the release sheet, and the release sheet can be prevented from being cut as much as possible. it can.

The side view of the sheet sticking apparatus which concerns on one Embodiment of this invention. Operation | movement explanatory drawing of a sheet sticking apparatus. Explanatory drawing of a modification.

Hereinafter, a sheet sticking apparatus 10 employing a sheet feeding apparatus according to an embodiment of the present invention will be described with reference to the drawings.
In this embodiment, the X axis, the Y axis, and the Z axis are orthogonal to each other, the X axis and the Y axis are axes within a predetermined plane, and the Z axis is an axis orthogonal to the predetermined plane. To do. Furthermore, in the present embodiment, when viewed from the near side of FIG. 1 parallel to the Y axis, when indicating the direction, “up” is the arrow direction of the Z axis, “down” is the opposite direction, “ “Left” is the arrow direction of the X axis, “Right” is the opposite direction, “Front” is the front direction orthogonal to the page, and “Rear” is the opposite direction of the Y axis arrow direction.

  In FIG. 1, the sheet sticking device 10 peels and supplies the adhesive sheet AS from an original fabric RS on which the adhesive sheet AS is temporarily attached to one surface RL1 of a strip-like release sheet RL, and the adhesive sheet AS is covered. It is a device that sticks to the body WK, and comes into contact with the feeding means 20 for feeding out the raw fabric RS, and the other surface RL2 of the release sheet RL, and the release sheet RL is bent by the release plate 31 as a bending member. A peeling means 30 for peeling the adhesive sheet AS from the peeling sheet RL, a pressing roller 40 as a pressing means for pressing and sticking the adhesive sheet AS peeled by the peeling means 30 to the adherend WK, and an adhesive sheet AS It has a detection means 50 such as an image sensor such as a detectable camera or an optical sensor, and a support means 60 that supports and conveys the adherend WK. Note that the feeding unit 20 and the peeling unit 30 in the present embodiment constitute a sheet feeding apparatus of the present invention.

  The feeding means 20 is driven by a rotation motor 21A as a drive device, and is supported by a support roller 21 that supports the original fabric RS, a plurality of guide rollers 22 that guide the original fabric RS, and a rotation motor 23 as a drive device. A driving roller 24 to be driven, a pinch roller 25 that sandwiches the release sheet RL between the drive roller 24, and a collection roller 26 that is driven by a driving device (not shown) and collects the release sheet RL.

  The peeling means 30 moves relative to the peeling plate 31 and the peeling plate 31 so as to penetrate the penetration member 32C from the other surface RL2 side of the peeling sheet RL bent by the peeling plate 31, and thereby the adhesive sheet AS. And a peeling trigger portion forming means 32 for forming a peeling trigger portion K1 at the tip portion AS1.

  The release plate 31 includes a guide surface 31A positioned on the other surface RL2 side of the release sheet RL, an inclined surface 31B connected to the left end portion of the guide surface 31A to form a bent portion 31C, and a release trigger portion forming means 32. And an internal space 31D, and two penetrating member passages 31E penetrating from the inner space 31D to a position near the bent portion 31C on the inclined surface 31B and serving as a passage for the penetrating member 32C.

  The peeling trigger part forming means 32 includes a direct acting motor 32A as a driving device supported in the internal space 31D and two penetrating members 32C supported by an output shaft 32B of the direct acting motor 32A. The penetrating member 32C is connected to a pressurizing means 32D such as a pressurizing pump or a turbine, and an ejection port 32F that ejects gas from a penetrating tip 32E penetrating the release sheet RL, and the penetrating tip 32E penetrates the release sheet RL. In this state, a cutter blade 32G is formed as a cutting means that enables feeding of the raw fabric RS. The angle θ of the upper edge portion of the penetrating tip portion 32E is formed at an obtuse angle so that the gas jetted from the jet port 32F can easily hit the tip portion AS1 of the adhesive sheet AS.

  The support means 60 includes a support table 62 having a support surface 62A that is supported by a slider 61A of a linear motor 61 as a driving device and that can hold the adherend WK by a decompression means (not shown) such as a decompression pump or a vacuum ejector. Yes.

Next, operation | movement of the sheet sticking apparatus 10 in this embodiment is demonstrated.
First, after the members set the original fabric RS as shown in the figure with respect to the sheet sticking device 10 indicated by the solid line in FIG. 1 in which each member stands by at the initial position, input means such as an operation panel or a personal computer (not shown) When an automatic operation start signal is input via, the feeding means 20 drives the rotation motors 21A and 23 to feed out the original fabric RS. Then, as shown in FIG. 1, the leading edge AS1 of the first adhesive sheet AS to be peeled off is peeled off from the release sheet RL to form a peeling trigger portion K1, and the leading edge ASF of the adhesive sheet AS is detected by the detecting means. When 50 is detected, after a predetermined time has elapsed, the feeding means 20 stops driving the rotation motors 21A, 23 and enters a standby state.

  Next, when a transfer means (not shown) such as a human hand or an articulated robot or a belt conveyor places the adherend WK on the support surface 62A, the support means 60 drives a decompression means (not shown), and the adherend is supported by the support surface 62A. After attracting and holding WK, the linear motor 61 is driven to move the support table 62 to the left. When it is detected by an imaging means such as a camera or a detection means (not shown) such as an optical sensor that the adherend WK has reached a predetermined position, the feeding means 20 drives the rotation motors 21A and 23 to attach the adherend WK. By feeding the original fabric RS in accordance with the conveyance speed of the body WK, the leading adhesive sheet AS is peeled off from the release sheet RL, pressed by the pressing roller 40, and attached to the adherend WK. When the leading edge ASF of the adhesive sheet AS to be attached next time is detected by the detection means 50 after the top adhesive sheet AS is attached to the adherend WK, the feeding means 20 The driving of the rotation motors 21A and 23 is stopped, and the standby state is set again.

  When the adhesion of the adhesive sheet AS to the adherend WK is completed, the support unit 60 stops driving the linear motor 61, stops the support table 62 at a predetermined position, and then stops driving the decompression unit (not shown). A manual or transfer means (not shown) transports the adherend WK to which the adhesive sheet AS is attached to the next process. Then, after the support means 60 drives the linear motor 61 and returns the support table 62 to the initial position, the same operation as described above is repeated.

  Here, for example, even if a predetermined time elapses after the detection means 50 detects the rear end edge ASR of the adhesive sheet AS previously applied, the front end edge ASF of the adhesive sheet AS to be applied next time is not detected. In this case, as shown in FIG. 2 (A), the peeling trigger portion K1 is not formed at the front end portion AS1 of the adhesive sheet AS to be attached next time, and the detection means 50 detects the peeling failure. As described above, when the detecting unit 50 detects a peeling failure, the feeding unit 20 stops driving the rotation motors 21A and 23, and stops feeding the raw fabric RS.

  Next, the peeling means 30 drives the linear motion motor 32A, and as shown in FIG. 2B, the penetrating member 32C is penetrated from the other surface side RL2 of the peeling sheet RL and peeled to the front end portion AS1 of the adhesive sheet AS. The trigger portion K1 is formed. At this time, there are cases where the adhesive surface of the adhesive sheet AS adheres to the penetrating tip 32E of the penetrating member 32C, or the separation trigger K1 is not sufficiently separated from the release sheet RL. 32D is driven, and gas is preferably ejected from the ejection port 32F as shown in FIG.

When the detection means 50 has not detected the front end portion AS1 of the adhesive sheet AS at the time when the peeling trigger portion K1 is formed on the front end portion AS1 of the adhesive sheet AS to be attached next time, the feeding means 20 is provided with the rotation motor 21A, 23, the leading edge ASF of the adhesive sheet AS to be pasted next time is detected by the detection means 50, and after a predetermined time has elapsed, the feeding means 20 stops driving the rotation motors 21A, 23, and is again in the standby state. It becomes.
On the other hand, when the detection means 50 detects the front end portion AS1 of the adhesive sheet AS at the time when the peeling trigger portion K1 is formed at the front end portion AS1 of the adhesive sheet AS to be pasted next time, the feeding means 20 is the rotation motor. 21A and 23 are driven, and the original fabric RS is pulled back until the detection means 50 no longer detects the front end portion AS1 of the adhesive sheet AS to be pasted next time. Thereafter, the feeding means 20 drives the rotation motors 21A and 23, feeds the raw material RS, the leading edge ASF of the adhesive sheet AS to be pasted next time is detected by the detecting means 50, and the feeding means 20 20 stops driving the rotation motors 21A and 23, and enters the standby state again. Thereby, it can prevent that the sticking start position of adhesive sheet AS shifts | deviates.

  In addition, when the cutter blade 32G is formed in the penetrating member 32C as in the present embodiment, when the penetrating member 32C is penetrated through the release sheet RL, the feeding of the raw fabric RS is not stopped or completely stopped. Also good. That is, since the cutter blade 32G cuts (cuts) the release sheet RL, the penetrating member 32C penetrating the release sheet RL does not hinder the feeding of the original fabric RS. Thereby, it can prevent that the sticking efficiency of adhesive sheet AS to the to-be-adhered body WK falls.

  According to the present embodiment as described above, since the peeling trigger portion K1 can be formed without providing innumerable through holes in the release sheet RL, the adhesive sheet AS can be reliably peeled from the release sheet RL, and the release sheet RL. Can be prevented as much as possible.

  The means and steps in the present invention are not limited in any way as long as they can perform the operations, functions, or steps described with respect to those means and steps. The process is not limited at all. For example, the feeding means may be anything as long as it can feed the original fabric, and is not limited insofar as it is within the scope in light of the common general technical knowledge at the time of filing (other means and processes). Will be omitted).

The feeding means 20 may not have the rotation motor 21A.
When the leading edge ASF of the adhesive sheet AS is detected by the detection unit 50, the feeding unit 20 may stop driving the rotation motors 21A and 23 without putting a gap and enter a standby state. In this case, in order to prevent the shift of the sticking start position of the adhesive sheet AS, when the original fabric RS is pulled back once, when the detecting means 50 detects the front end portion AS1 of the adhesive sheet AS to be pasted next time, the feeding means. It is only necessary that 20 stops driving the rotation motors 21A and 23 and enters a standby state.
The feeding means 20 may not perform an operation for preventing the shift of the sticking start position of the adhesive sheet AS.

As shown in FIG. 3, the peeling means 30 may employ a rotatable peeling roller 33 as a bending member whose left side surface is a bent portion. A groove 33 </ b> A is formed on the surface of the peeling roller 33. The penetrating member 32C may be configured to move in the concave groove 33A.
The peeling means 30 may fix the penetrating member 32C and move the peeling plate 31 to move both relative to each other, or move both the penetrating member 32C and the peeling plate 31 to move both relatively. Good.
The peeling means 30 may always form the peeling trigger portion K1 with the penetrating member 32C, not only when the detection means 50 detects a peeling failure, but in such a case, the detection means 50 may be provided. It does not have to be good.
The peeling means 30 may form the peeling trigger portion K1 by penetrating the penetration member 32C through the peeling sheet RL a plurality of times for one adhesive sheet AS.
The peeling means 30 may be provided with the same number of penetrating member passages 31E as the number of penetrating members 32C, or may be configured such that a plurality of penetrating members 32C pass through only one penetrating member passage 31E. The plurality of penetrating member passages 31E may be configured to pass through the plurality of penetrating members 32C.
The peeling means 30 may eject gas from the ejection port 32F each time the penetration trigger part K1 is formed by the penetrating member 32C, or an imaging means such as a camera or a detection means (not shown) such as an optical sensor may be used as a penetrating tip. The gas may be ejected from the ejection port 32F only when the adhesion of the adhesive sheet AS to the part 32E is detected or only when it is detected that the separation trigger part K1 is not sufficiently separated from the separation sheet RL.
The linear motion motor 32A may be a single body or a plurality of linear motion motors, and the single linear motion motor 32A may support one or a plurality of penetrating members 32C, or each of the multiple linear motion motors 32A is one. You may support this or several penetration member 32C.
The number of penetrating members 32C may be one, or three or more, and can be arbitrarily determined according to the size of the adhesive sheet AS.
The upper surface of the penetrating member 32C may be configured to be positioned on the same plane as the guide surface 31A of the peeling plate 31, or may be configured to be positioned above the guide surface 31A. A concave groove may be formed in the guide surface 31A, and the penetrating member 32C may be configured to move in the concave groove.
The ejection port 32F of the penetrating member 32C may not be provided.
The penetrating member 32C may be coated with fluorine resin, silicon resin, or the like, or embossed to form unevenness, and may be non-adherent, or the penetrating member 32C itself may be made of fluorine resin, silicon resin, or the like. You may form with a non-adhesive member.
The cutting means provided in the penetrating member 32C may or may not employ a heating wire such as a nichrome wire, a laser cutter, or the like.
The penetrating member 32C may be anything as long as it can penetrate the release sheet RL, and the dimensions, shape, and the like can be arbitrarily determined. For example, the shape of the penetrating tip 32E may be a cone shape, a pyramid shape, or the like. Good.
The pressurizing means 32D may or may not supply a single gas such as air, composite gas, nitrogen or neon, or a gas mixture.
The pressurizing unit 32D may be configured such that gas is always ejected from the ejection port 32F.
The angle θ of the upper edge portion of the penetrating tip portion 32E may be an acute angle or a right angle.
The shape of the ejection port 32F may be any shape such as a circle, a semicircle, an ellipse, a rectangle, a pentagon or more polygon as long as gas can be ejected.
A slope 32H is provided in the vicinity of the outlet of the jet outlet 32F, as indicated by a two-dot chain line in the drawing denoted by AA in FIG. 1 so that the gas jetted from the jet outlet 32F is likely to hit the front end portion AS1 of the adhesive sheet AS. It may be provided.

As shown in FIG. 3 (A), the pressing means is supported by an output shaft 41A of a direct acting motor 41 as a driving device, instead of the pressing roller 40, and by a decompression means (not shown) such as a decompression pump or a vacuum ejector. The sheet holding member 42 capable of holding the adhesive sheet AS supplied from the sheet supply apparatus may be employed, and the adhesive sheet AS held by the sheet holding member 42 may be pressed and stuck to the adherend WK.
As the pressing means, a pressing member made of a blade material, rubber, resin, sponge, or the like can be used, and a configuration in which pressing is performed by blowing air such as air or gas can also be used.
The pressing means may stop the pressing member and move the adherend WK, or move both the pressing member and the adherend WK to press the adhesive sheet AS against the adherend WK. It may be affixed.

The detecting means 50 may be arranged so that the adhesive sheet AS can be detected from at least one of the base material surface side and the adhesive surface side of the adhesive sheet AS.
The detection means 50 may be arranged so as to detect the adhesive sheet AS folded by the release plate 31 together with the release sheet RL from at least one of the one side RL1 side and the other side RL2 side of the release sheet RL. In this case, when the detecting means 50 detects the leading edge ASF of the adhesive sheet AS, the peeling means 30 drives the linear motion motor 32A to penetrate the peeling sheet RL through the penetrating member 32C to form the peeling trigger portion K1. do it.

The support means 60 stops the adherend WK, or moves the adherend WK while moving the other means such as the feeding means 20 and the pressing means in an appropriate direction. A sheet sticking operation may be performed.
The support means 60 may be configured to hold the adherend WK by chuck means such as a mechanical chuck or a chuck cylinder, Coulomb force, adhesive, adhesive, magnetic force, Bernoulli adsorption, or the like.
In the case where the adherend WK is transported by another apparatus, the support means 60 is not necessary in the present invention, and other components not described in the independent claims of the present invention, such as other pressing means, detection means 50, etc. May or may not be employed as necessary.
The sheet sticking device 10 may be configured to stick the adhesive sheet AS on the lower surface or side surface of the adherend WK by placing it upside down or placing it horizontally.

The sheet sticking device 10 or the sheet feeding device is used in combination with the detecting means 50 to detect the rear edge ASR of the leading adhesive sheet AS, the leading edge ASF or the trailing edge ASR of the adhesive sheet AS after the next sticking schedule. The detecting means may be provided. In this case, the feeding means 20 is configured to stop driving the rotation motors 21A and 23 and enter a standby state when the other detection means detects each edge. If the detection means 50 does not detect the adhesive sheet AS even though the other detection means detects each edge, a peeling trigger portion K1 is formed at the front end portion AS1 of the adhesive sheet AS to be attached next time. Therefore, the peeling means 30 may perform the operation of forming the peeling trigger portion K1 in the same manner as described above.
In the above embodiment, the sheet sticking device 10 employing the sheet feeding device of the present invention has been illustrated and described. However, the sheet feeding device may be used as a single unit, and in this case, the adhesive sheet fed from the sheet feeding device. AS can be held by hand and attached to adherend WK.

  Further, the material, type, shape, etc. of the adhesive sheet AS and the adherend WK in the present invention are not particularly limited. For example, the adhesive sheet AS is not limited to adhesive forms such as pressure-sensitive adhesiveness and heat-sensitive adhesiveness. When a heat-sensitive adhesive is used, a heating means such as an appropriate coil heater for heating the adhesive sheet AS or a heating side of the heat pipe may be provided. Such an adhesive sheet AS is, for example, a single layer having only an adhesive layer, an intermediate layer between the base sheet and the adhesive layer, a cover layer on the upper surface of the base sheet, etc. Three or more layers, or a so-called double-sided adhesive sheet that can peel the base sheet from the adhesive layer may be used. The double-sided adhesive sheet comprises a single-layer or multi-layer intermediate layer. It may be a single layer or a multilayer having no intermediate layer. Examples of the adherend WK include foods, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, information recording substrates such as circuit boards, electrode substrates, and optical disks, glass plates, steel plates, ceramics, wood plates, Arbitrary forms of members and articles such as resin plates can also be targeted. Note that the adhesive sheet AS can be read in a functional or application manner, and can be any information such as an information description label, a decorative label, a protective sheet, a dicing tape, a die attach film, a die bonding tape, and a recording layer forming resin sheet. Sheets, films, tapes, etc. may be used.

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

DESCRIPTION OF SYMBOLS 10 ... Sheet sticking apparatus 20 ... Feeding means 30 ... Peeling means 31 ... Peeling plate (bending member)
32 ... peeling trigger part forming means 32C ... penetrating member 32E ... penetrating tip 32F ... jet port 32G ... cutter blade (cutting means)
33 ... Peeling roller (bending member)
RS ... Original AS ... Adhesive sheet AS1 ... Lead end RL ... Release sheet RL1 ... One surface RL2 ... Other surface K1 ... Peeling trigger part

Claims (4)

In the sheet supply apparatus for peeling and supplying the adhesive sheet from the original fabric on which the adhesive sheet is temporarily attached to one surface of the strip-shaped release sheet,
A feeding means for feeding out the original fabric;
A peeling means for peeling the adhesive sheet from the release sheet by contacting the other surface of the release sheet and bending the release sheet with a bending member;
The peeling means moves relative to the bending member, thereby penetrating the penetrating member from the other surface side of the peeling sheet bent by the bending member, and peeling to the front end portion of the adhesive sheet A sheet feeding apparatus comprising a peeling trigger part forming means for forming a trigger part.   The sheet feeding apparatus according to claim 1, wherein the penetrating member includes a spout that ejects gas from a penetrating tip that penetrates the release sheet.   3. The sheet feeding apparatus according to claim 1, wherein the penetrating member includes a cutting unit that allows the raw material to be fed out while penetrating the release sheet. 4. In the sheet supply method of peeling and supplying the adhesive sheet from the original fabric in which the adhesive sheet is temporarily attached to one surface of the strip-shaped release sheet,
Unwinding the original fabric;
A peeling step of peeling the adhesive sheet from the release sheet by contacting the other surface of the release sheet and bending the release sheet with a bending member;
In the peeling step, the penetrating member is penetrated from the other surface side of the peeling sheet bent by the bending member by moving relative to the bending member, and peeled off at the tip of the adhesive sheet A sheet supply method comprising a step of forming a trigger portion.

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