JP7064868B2 - Sheet supply device and sheet supply method, and sheet pasting device and sheet pasting method - Google Patents

Description

The present invention relates to a sheet supply device and a sheet supply method, and a sheet sticking device and a sheet sticking method.

Conventionally, there is known a sheet sticking device capable of detecting a peeling defect in which an adhesive sheet is not peeled off by a peeling means (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2008-174247

In the conventional sheet pasting device (sheet supply device) described in Patent Document 1, the peel plate 5 is used when the transparency of the adhesive sheet S (adhesive sheet) is high, the amount of light of the detection portion of the adhesive sheet is low, and the like. Even though the adhesive sheet is peeled off by (peeling means), the sensor 15 (peeling defect detecting means) may not be able to detect the adhesive sheet, and it may be erroneously recognized that the adhesive sheet has peeled off. ..

An object of the present invention is to provide a sheet supply device and a sheet supply method, and a sheet sticking device and a sheet sticking method, which can prevent erroneous recognition of poor peeling of an adhesive sheet.

The present invention has adopted the configuration described in the claims.

According to the present invention, since the peeling defect is detected because the tip portion of the adhesive sheet in the feeding direction does not abut on the contact portion, the transparency of the adhesive sheet is high, the amount of light of the detection portion of the adhesive sheet is small, etc. Even so, it does not affect the detection result, and it is possible to prevent erroneous recognition of poor peeling of the adhesive sheet.
Further, if the peeling defect detecting means forms a closed circuit including the adhesive sheet and is provided with a detection unit for detecting the electric energy supplied to the closed circuit, the peeling defect of the adhesive sheet can be erroneously recognized with a simple configuration. Can be prevented.
Further, if the peeling defect detecting means includes a contact detecting means having a contact portion, the configuration of the sheet supply device can be simplified.
Further, if the contact assisting means is provided, the tip portion of the adhesive sheet peeled off by the peeling means in the feeding direction can be reliably pressed against the contact portion, and it is possible to prevent erroneous recognition of the peeling defect of the adhesive sheet. can.
Further, if the pressing means is provided, it is possible to provide a sheet sticking device capable of preventing erroneous recognition of poor peeling of the adhesive sheet.
Further, if the contact portion is composed of the pressing member, the configuration of the sheet pasting device can be simplified.

The side view of the sheet sticking apparatus which adopted the sheet supply apparatus which concerns on embodiment of this invention. (A) and (B) are operation explanatory views of the sheet pasting apparatus. (A) and (B) are explanatory views of the modification of this invention. (A) and (B) are explanatory views of the modification of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The X-axis, Y-axis, and Z-axis in the present embodiment are orthogonal to each other, the X-axis and the Y-axis are axes in a predetermined plane, and the Z-axis is an axis orthogonal to the predetermined plane. do. Further, in the present embodiment, "up" is "down" in the direction of the arrow on the Z axis when the direction is shown without specifying the figure, based on the case of viewing from the front direction in FIG. 1 parallel to the Y axis. Is the opposite direction, "left" is the arrow direction of the X axis, "right" is the opposite direction, "front" is the middle front direction parallel to the Y axis, and "rear" is the opposite direction. Further, in FIGS. 2 and later, the figure in which the arrow indicating the direction is not described is a view viewed from the same direction as in FIG.

In the sheet supply device 10 of the present invention, the adhesive sheet AS is detached from the feeding means 20 for feeding out the raw fabric RS in which the adhesive sheet AS is temporarily attached to the strip-shaped peeling sheet RL and the raw fabric RS fed out by the feeding means 20. , The peeling plate 30 as a peeling means for supplying the adhesive sheet AS, the peeling defect detecting means 40 for detecting that the tip portion AS1 in the feeding direction of the adhesive sheet AS is not peeled by the peeling plate 30, and the peeling plate 30. It is provided with a contact assisting means 50 that assists in pressing the tip portion AS1 of the adhesive sheet AS peeled off in the feeding direction against the contact portion 44.
The sheet supply device 10 of the present invention includes a pressing means 60 having a pressing roller 61 as a pressing member for pressing and attaching the adhesive sheet AS peeled off by the release plate 30 to the adherend WK, and the sheet supply device 10. The sheet sticking device SA is composed of the pressing means 60 and the moving means 70 for relatively moving the adherend WK. Further, the adhesive sheet AS is temporarily attached to the release sheet RL via the adhesive layer AL laminated on one surface of the base sheet BS.

The feeding means 20 includes a support roller 22, a guide roller 23, and a rotation motor 24A as a drive device, which are supported by an output shaft (not shown) of the rotation motor 21 as a drive device and support the wound raw fabric RS. A predetermined tension is always applied to the release sheet RL supported by the output shaft (not shown) and sandwiching the release sheet RL with the pinch roller 25, and the release sheet RL driven by the drive device (not shown) and existing between the pinch roller 25. It is provided with a recovery roller 26 that is applied and collected, and an original fabric stop sensor 27 that detects a step behind the sheet between the rear end portion AS2 of the leading adhesive sheet AS in the feeding direction and the release sheet RL by the detection section 27A.

The peeling defect detecting means 40 includes a contact portion 44 to which the tip portion AS1 in the feeding direction of the adhesive sheet AS peeled off by the peeling plate 30 abuts, and the tip portion AS1 in the feeding direction of the adhesive sheet AS does not abut on the contact portion 44. Then, peeling failure is detected.
In the present embodiment, the peeling defect detecting means 40 is closed by electrically conducting the adhesive sheet AS including the adhesive sheet AS by contacting the tip portion AS1 in the feeding direction of the adhesive sheet AS peeled off by the peeling plate 30 with the contact portion 44. A detection unit 45 that forms a circuit CT and detects the electric energy supplied to the closed circuit CT is provided.
That is, the peeling defect detecting means 40 is the first to conduct electrical energy between the supply unit 41 that supplies electric energy, the propagation unit 42 that propagates the electric energy to the adhesive sheet AS, and the supply unit 41 and the propagation unit 42. 1 The conductive portion 43, the contact portion 44 with which the tip portion AS1 in the feeding direction of the adhesive sheet AS abuts, the detection unit 45 for detecting electrical energy, and the contact portion 44 and the detection unit 45 for conducting electrical energy. A second conductive portion 46 and a third conductive portion 47 for conducting electrical energy between the detection unit 45 and the supply unit 41 are provided.
With such a configuration, the peeling defect detecting means 40 detects that the tip portion AS1 in the feeding direction is peeled off by the peeling plate 30 by detecting the electric energy conducting the closed circuit CT by the detection unit 45. The detection unit 45 is configured to detect peeling defects by not detecting electrical energy.

The contact assisting means 50 includes a nozzle 51 for blowing a gas such as air or a single gas supplied from a pressurizing means (not shown) such as a pressurizing pump or a turbine.

The moving means 70 is supported by a linear motor 71 as a drive device equipped with a slider 71A that moves in the X-axis direction and the slider 71A, and is attracted and held by a decompression means (holding means) (not shown) such as a decompression pump or a vacuum ejector. It comprises a support table 72 having a possible support surface 72A.

The operation of the sheet pasting device SA in which the above sheet supply device 10 is adopted will be described.
First, with respect to the sheet affixing device SA in which each member is arranged at the initial position shown by the solid line in FIG. After setting, a signal for starting operation is input to the sheet sticking device SA via an operation means (not shown) such as an operation panel or a personal computer. Then, the contact assisting means 50 drives a pressurizing means (not shown) to blow gas from the nozzle 51, and the feeding means 20 drives the rotation motors 21 and 24A to feed the raw fabric RS and then stop the raw fabric. When the sensor 27 detects a step behind the seat, the driving of the rotary motors 21 and 24A is stopped, and the feeding of the original fabric RS is stopped.

Here, when the feeding of the original fabric RS is stopped in the above manner, normally, as shown in FIG. 1, the tip portion AS1 of the leading adhesive sheet AS in the feeding direction is peeled off by the peeling edge 30A of the peeling plate 30. With the assistance of the gas blown from the nozzle 51, the tip portion AS1 in the feeding direction abuts on the contact portion 44 to form a closed circuit CT. Then, the detection unit 45 detects the electric energy supplied from the supply unit 41 and conducts the closed circuit CT, and the seat supply device 10 is put into the standby state.

On the other hand, when the feeding of the original fabric RS is stopped in the above manner, as shown in FIG. 2A, the tip portion AS1 of the leading adhesive sheet AS in the feeding direction is fed in the drive roller 24 direction together with the release sheet RL. The peeling defect detecting means 40 detects that the peeling defect has occurred because the tip portion AS1 in the feeding direction does not abut on the contact portion 44 and the detecting unit 45 does not detect the electric energy. Then, the feeding means 20 drives the rotation motors 21 and 24A, and the original fabric RS is reached until the tip portion AS1 of the leading adhesive sheet AS in the feeding direction reaches the position before being folded back by the peeling edge 30A of the peeling plate 30. After pulling it back, the retry operation of feeding out the original fabric RS is performed again. Then, as shown in FIG. 2B, when the leading end portion AS1 of the adhesive sheet AS in the feeding direction is peeled off by the peeling edge 30A of the peeling plate 30, the tip portion AS1 in the feeding direction abuts on the contact portion 44. The closed circuit CT is formed, the detection unit 45 detects the electric energy conducting the closed circuit CT, and the seat supply device 10 is in the standby state.

Next, when a user or a transport means (not shown) such as an articulated robot or a belt conveyor places the adherend WK on the support table 72, the moving means 70 drives a decompression means (not shown) on the support surface 72A. The adsorption and retention of the adherend WK is started. After that, the moving means 70 drives the linear motor 71, the support table 72 is moved to the left, and when the adherend WK reaches a predetermined position, the feeding means 20 drives the rotary motors 21 and 24A to be covered. The original fabric RS is delivered according to the moving speed of the landing WK. As a result, as shown by the alternate long and short dash line in FIG. 1, the adhesive sheet AS is peeled from the peeling sheet RL by the peeling edge 30A of the peeling plate 30, and is pressed and attached to the upper surface of the adherend WK by the pressing roller 61. Will be done.

After the entire adhesive sheet AS is attached to the adherend WK, when the original fabric stop sensor 27 detects the step behind the sheet again, the feeding means 20 stops driving the rotary motors 21 and 24A, and the original fabric RS Stops feeding. Also at this time, if the feeding direction tip AS1 does not abut on the contact portion 44 and the detection unit 45 does not detect the electric energy, the feeding means 20 performs the above retry operation, and the feeding direction tip AS1 makes a contact. When the detection unit 45 detects the electric energy that comes into contact with the unit 44 and conducts the closed circuit CT, the seat supply device 10 is put into the standby state again.

Next, when the adherend WK to which the entire adhesive sheet AS is attached reaches a predetermined position on the left side of the pressing roller 61, the moving means 70 stops driving the linear motor 71 and the decompression means (not shown). Then, after the user or the conveying means (not shown) conveys the adherend WK to which the adhesive sheet AS is attached to the next step, the moving means 70 drives the linear motor 71 and returns the support table 72 to the initial position. After that, the same operation as described above is repeated.

According to the above embodiment, since the peeling defect is detected when the tip portion AS1 in the feeding direction of the adhesive sheet AS does not abut on the contact portion 44, the adhesive sheet AS has high transparency or the adhesive sheet AS. Even when the amount of light of the detection unit is small, the detection result is not affected, and it is possible to prevent erroneous recognition of poor peeling of the adhesive sheet AS.

The means and processes in the present invention are not limited as long as they can perform the operations, functions or processes described for the means and processes, much less the constituents of the mere embodiment shown in the above-described embodiment. It is not limited to the process at all. For example, the feeding means is limited as long as it is possible to feed the original fabric in which the adhesive sheet is temporarily attached to the strip-shaped release sheet, in light of the common general technical knowledge at the time of filing, and if it is within the technical range. Nothing (same for other means and processes).

For example, in the sheet sticking device SA, instead of the peeling defect detecting means 40 shown in the above embodiment, as shown in each figure of FIG. 3, the tip portion AS1 of the adhesive sheet AS peeled off by the peeling plate 30 in the feeding direction is the present. A peeling defect detecting means 40A provided with a contact sensor 48 as a contact detecting means having a contact portion 48A in contact with the contact portion 48A may be adopted.
In the peeling defect detecting means 40A, the contact sensor 48 detects that the tip portion AS1 in the feeding direction of the adhesive sheet AS has come into contact with the contact portion 48A, so that the tip portion AS1 in the feeding direction is peeled off by the peeling plate 30. Is detected, and the contact sensor 48 detects that the tip portion AS1 of the adhesive sheet AS in the feeding direction does not abut on the contact portion 48A, thereby detecting the peeling failure.

In the feeding means 20, the strip-shaped adhesive sheet base material temporarily attached to the release sheet RL is formed with a closed loop-shaped or cut in the entire short width direction, so that a predetermined region partitioned by the cut is adhered. The raw fabric RS as the sheet AS may be fed out, or when the raw fabric RS in which the strip-shaped adhesive sheet base material is temporarily attached to the release sheet RL is adopted, a closed loop shape is formed on the adhesive sheet base material by a cutting means. Alternatively, a notch in the entire short width direction may be formed, and a predetermined area partitioned by the notch may be used as an adhesive sheet AS. In these cases, the original fabric stop sensor 27 may detect a step behind the sheet. It is advisable to adopt a removing means for removing the portion of the adhesive sheet base material other than the adhesive sheet AS from the release sheet RL in front of the detection unit 27A, and it is appropriate that the cut can be detected even if there is no step behind the sheet. A sensor may be provided.
The feeding means 20 may support or guide the raw fabric RS or the release sheet RL with a plate-shaped member, a shaft member, or the like instead of the rollers such as the support roller 22 and the guide roller 23, or the raw fabric RS. It may be supported by folding it in a fan fold without winding it, or by adopting an imaging means such as a camera or a projector, or various sensors such as an optical sensor or an ultrasonic sensor, as the original fabric stop sensor. Alternatively, the release sheet RL may be collected by, for example, fanfold folding or chopping with a shredder without winding the release sheet RL, or the release sheet RL may not be collected.
The feeding means 20 may repeat the retry operation many times until the detection unit 45 or the contact sensor 48 detects the electric energy or the contact of the tip portion AS1 in the feeding direction, or even if the retry operation is performed a predetermined number of times, it depends on them. When the contact between the electric energy and the tip AS1 in the feeding direction is not detected, after stopping the driving of the rotary motors 21 and 24A, a warning means (not shown) such as a lamp or a buzzer is driven to notify the user. The user may peel off the tip portion AS1 in the feeding direction from the release sheet RL, or each time the raw fabric RS is fed out by a retry operation in order to facilitate the peeling of the tip portion AS1 in the feeding direction from the peeling sheet RL. , The tension applied to the raw fabric RS portion located between the support roller 22 and the drive roller 24 may be gradually increased.
The feeding means 20 may detect the sheet rear step of the adhesive sheet AS other than the head by the detection unit 27A, or detect the sheet front step between the front end portion AS1 in the feeding direction other than the head adhesive sheet AS and the release sheet RL. It may be detected by the unit 27A.

The peeling defect detecting means 40 may be supplied with electrical energy from an external power source other than the sheet supply device 10 or the sheet pasting device SA to form a closed circuit CT including the external power source, or may use a brush as the propagation unit 42. A roller or the like may be adopted, the propagating portion 42 may come into contact with the base sheet BS to propagate the electric energy to the adhesive sheet AS, or the propagating portion 42 may come into contact with the adhesive layer AL to carry out the electric energy. May be propagated to the adhesive sheet AS, or the propagating portion 42 may come into contact with the release sheet RL to propagate electrical energy to the adhesive sheet AS, and the propagation portion 42 constitutes the release plate 30 and the feeding means 20. The electrical energy may be propagated to the adhesive sheet AS in contact with the member to be formed, in consideration of the conductivity of the constituent of the base sheet BS, the adhesive layer AL, the release sheet RL, the release plate 30, or the feeding means 20. The electric energy may be propagated to the adhesive sheet AS, the detection unit 45 may be configured to detect a current, a voltage, or an electric signal, and the current detected by the detection unit 45 may be a DC current or an alternating current. good.
The peeling defect detecting means 40A may adopt a contact sensor 48 in which the tip portion AS1 in the feeding direction of the adhesive sheet AS directly touches the contact portion 48A as the contact detecting means, or the tip portion AS1 in the feeding direction of the adhesive sheet AS touches. That is, a tactile sensor provided with a contact portion 48A capable of detecting a force, pressure, temperature, etc. may be adopted as the contact detection means, and the adhesive sheet AS peeled off by the release plate 30 may be used at the tip portion AS1 in the feeding direction. Any material may be adopted as the contact detecting means as long as it can be detected that the contact portion 48A is in contact with the contact portion 48A.
The peeling defect detecting means 40 and 40A may be used as a roll-up preventing means for preventing the contact portions 44 and 48A from rolling up at the tip portion AS1 in the feeding direction above the pressing roller 61, and as shown in each figure of FIG. The closed circuit CT1 may be formed by using the pressing roller 61 as a contact portion, or various contact sensors capable of detecting that the tip portion AS1 in the feeding direction abuts on the pressing roller 61 may be adopted.

As shown in each figure of FIG. 4, the contact assisting means 50 is supported by an air cylinder 52 as a driving device and its output shaft 52A, and penetrates through a peeling sheet RL folded back by a peeling edge 30A of the peeling plate 30. The adhesive sheet AS may be provided with a needle-shaped or knife-shaped contact assisting member 53 for peeling the tip portion AS1 in the feeding direction from the peeling sheet RL. In this case, after the raw fabric stop sensor 27 detects the step behind the seat, the driving of the feeding means 20 rotation motors 21 and 24A is stopped to stop the feeding of the raw fabric RS, the contact assisting means 50 is an air cylinder 52. Is driven, and the contact assisting member 53 is projected to assist the tip portion AS1 in the feeding direction to be pressed against the contact portion 44.
The contact assisting means 50 may always blow gas from the nozzle 51 during the operation of the sheet supply device 10 or the sheet affixing device SA, or stop blowing gas from the nozzle 51 when the closed circuit CT is formed. Alternatively, the spraying of gas from the nozzle 51 may be stopped at the time when the adhesive sheet AS is attached to the adherend WK, or the spraying of gas from the nozzle 51 may be stopped at any time. In addition to the gas spraying from the nozzle 51, the rod-shaped tip portion AS1 in the feeding direction may be pressed against the contact portions 44 and 48A, or may not be provided in the sheet supply device 10 or the sheet sticking device SA.

The pressing means 60 includes a drive device that holds the adhesive sheet AS supplied from the sheet supply device 10 with a holding member from the opposite side of the adhesive surface, and presses and attaches the held adhesive sheet AS to the adherend WK. Alternatively, a drive device as a pressing member contacting / detaching means for moving the pressing roller 61 away from and approaching the adherend WK may be provided to prevent the adherend WK from being stressed or damaged. As such a pressing member contacting / detaching means, the pressing roller 61 may be manually moved in addition to the driving device.

The moving means 70 may move the sheet supply device 10 and the pressing roller 61 without or while moving the adherend WK, may not have the holding means, or may be adhered by another device. When supporting or transporting the body WK, it does not have to be provided in the sheet supply device 10 of the present invention.

When the peeling defect detecting means 40 detects that a peeling defect has occurred, the sheet supply device 10 does not perform the retry operation, or in parallel with the retry operation, or alternately with the retry operation, or the retry operation. The contact assisting means 50 drives a pressurizing means (not shown) to vigorously blow gas from the nozzle 51, or the contact assisting means 50 is an air cylinder. By driving the 52 and projecting the contact auxiliary member 53, the tip portion AS1 in the feeding direction, which is fed out in the direction of the drive roller 24 together with the peeling sheet RL, may be peeled from the peeling sheet RL. The adhesive sheet AS may be supplied by arranging it upside down or arranged sideways, for example, an adhesive sheet stacking device for stacking a plurality of adhesive sheet ASs one by one, or another adhesive sheet AS. It may be used as a component of something other than the sheet sticking device SA, such as a transfer device that transfers to a release sheet, or it may be used alone as a semi-automatic sheet sticking device that manually sticks the adhesive sheet AS to the adherend WK. May be good.

The sheet attaching device SA may be arranged upside down or arranged sideways to attach the adhesive sheet AS to the adherend WK.

The materials, types, shapes, etc. of the adhesive sheet AS and the adherend WK in the present invention are not particularly limited. For example, the adhesive sheet AS may have a circular shape, an elliptical shape, a polygonal shape such as a triangle or a square, or any other shape, or may have an adhesive form such as pressure-sensitive adhesiveness or heat-sensitive adhesiveness. When the heat-sensitive adhesive sheet AS is adopted, it may be adhered by an appropriate method such as providing an appropriate coil heater for heating the adhesive sheet AS or a heating means such as a heating side of a heat pipe. Further, such an adhesive sheet AS is, for example, a single layer having only an adhesive layer AL, a sheet having an intermediate layer between the base sheet BS and the adhesive layer AL, and a cover on the upper surface of the base sheet BS. It may be a so-called double-sided adhesive sheet having three or more layers, such as having a layer, or a so-called double-sided adhesive sheet capable of peeling the base sheet BS from the adhesive layer AL, and the double-sided adhesive sheet may be a single layer or It may have a multi-layered intermediate layer, or may be a single layer or a multi-layered product without an intermediate layer. The adherend WK includes, for example, foods, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, closed circuit boards, information recording boards such as optical disks, glass plates, steel plates, pottery, wood plates or resins. It may be a single product of the above, or a composite product formed of two or more of them, and any form of a member or an article can be targeted. The adhesive sheet AS may be read in a functional and versatile manner, and may be, for example, an information description label, a decorative label, a protective sheet, a dicing tape, a die attach film, a die bonding tape, a recording layer forming resin sheet, or the like. Sheets, films, tapes, etc. may be used.

The drive device in the above embodiment is an electric device such as a rotary motor, a linear motor, a linear motor, a single-axis robot, an articulated robot having two-axis or three-axis or more joints, an air cylinder, a hydraulic cylinder, and a rodless. Actuators such as cylinders and rotary cylinders can be adopted, and those in which they are directly or indirectly combined can also be adopted.
In the above embodiment, when a rotating member such as a roller is adopted, a driving device for rotationally driving the rotating member may be provided, or the surface of the rotating member or the rotating member itself can be deformed by rubber, resin, or the like. It may be composed of a member, a member that does not deform the surface of the rotating member or the rotating member itself, or a pressing means such as a pressing roller or a pressing head or a member that presses a pressed object such as a pressing member. If adopted, instead of or in combination with those exemplified above, members such as rollers, round bars, blade materials, rubber, resin, sponge, etc. may be adopted, or pressed by spraying gas such as air or gas. The material to be pressed may be made of a deformable member such as rubber or resin, or may be made of a non-deformable member, such as a release plate or a release roller. When a material that peels off an object to be peeled off, such as a peeling means or a peeling member, is used, a member such as a plate-shaped member, a round bar, or a roller may be used in place of or in combination with the above-exemplified one. Alternatively, the material to be peeled off may be made of a deformable member such as rubber or resin, or may be made of a non-deformable member, or may be supported by a supporting (holding) means, a supporting (holding) member, or the like. When a member that supports or holds a member is used, gripping means such as a mechanical chuck or chuck cylinder, Coulomb force, adhesive (adhesive sheet, adhesive tape), adhesive (adhesive sheet, adhesive tape), magnetic force, Bernoulli A configuration may be adopted in which the supported member is supported (held) by suction, suction suction, a drive device, or the like, or the cut member such as a cutting means or a cutting member is cut, or a cut or a cutting line is cut in the cut member. Cutter blades, laser cutters, ion beams, thermal power, heat, hydraulic pressure, heating wires, spraying of gas, liquid, etc., in place of or in combination with those exemplified above. You may adopt the one that cuts with, or you may move the one that cuts with a combination of appropriate drive devices and cut it.

10 ... Sheet supply device 20 ... Feeding means 30 ... Release plate (peeling means)
40 ... Peeling defect detecting means 44 ... Contact part 45 ... Detection part 48 ... Contact sensor (contact detection means)
48A ... Contact part 50 ... Contact assisting means 60 ... Pressing means 61 ... Pressing roller (pressing member) (contact part)
AS ... Adhesive sheet AS1 ... Tip in feeding direction CT ... Closed circuit CT1 ... Closed circuit RL ... Peeling sheet RS ... Original fabric SA ... Sheet sticking device WK ... Adhesive

Claims (8)

A feeding means for feeding out the original fabric with an adhesive sheet temporarily attached to the strip-shaped release sheet,
A peeling means for supplying the adhesive sheet by peeling the adhesive sheet from the raw fabric unwound by the feeding means.
It is provided with a peeling defect detecting means for detecting that the tip portion of the adhesive sheet in the feeding direction is not peeled by the peeling means as a peeling defect.
The peeling defect detecting means includes a contact portion with which the tip portion of the adhesive sheet peeled off by the peeling means in the feeding direction abuts, and the tip portion in the feeding direction of the adhesive sheet does not abut with the contact portion. A sheet supply device characterized by detecting peeling defects. The peeling defect detecting means forms an electrically conductive closed circuit including the adhesive sheet by abutting the tip portion of the adhesive sheet peeled off by the peeling means in the feeding direction with the contact portion, and the closing circuit is formed. The sheet supply device according to claim 1, further comprising a detection unit that detects electrical energy supplied to the circuit. The sheet supply according to claim 1, wherein the peeling defect detecting means includes a contact detecting means having a contact portion with which the tip portion of the adhesive sheet peeled off by the peeling means in the feeding direction abuts. Device. The sheet supply device according to claim 1 to 3, further comprising a contact assisting means for assisting pressing the tip portion of the adhesive sheet peeled off by the peeling means in the feeding direction against the contact portion. .. In the sheet pasting device using the sheet supply device according to any one of claims 1 to 4.
A sheet affixing device comprising a pressing means for pressing and affixing the adhesive sheet peeled off by the peeling means to an adherend. The sheet sticking device according to claim 5, wherein the pressing means has a pressing member, and the contact portion comprises the pressing member. A feeding process in which an adhesive sheet is temporarily attached to a strip-shaped peeling sheet to feed out the original fabric.
A peeling step of peeling the adhesive sheet from the raw fabric fed in the feeding step and supplying the adhesive sheet, and a peeling step of supplying the adhesive sheet.
It has a peeling defect detecting step of detecting that the tip portion of the adhesive sheet in the feeding direction is not peeled in the peeling step as a peeling defect.
The peeling defect detecting step is a sheet supply method characterized in that the peeling defect is detected by preventing the tip portion of the adhesive sheet peeled off in the peeling step from coming into contact with the contact portion. In the sheet pasting method using the sheet supply method according to claim 7,
A sheet affixing method comprising a pressing step of pressing and affixing the adhesive sheet peeled off in the peeling step to an adherend.

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