JP7551373B2 - Sheet pasting device and sheet pasting method - Google Patents

Description

The present invention relates to a sheet application device and a sheet application method.

A sheet application device is known that holds multiple adhesive sheets and applies the held multiple adhesive sheets to an adherend (see, for example, Patent Document 1).

JP 2011-93583 A

The sheet application device 1 (sheet application device) described in Patent Document 1 sandwiches the workpiece W (adherend) between a suction belt 45 and a pressure belt 54 that suction-support the adhesive sheet S (adhesive sheet), and conveys the adherend while rotating it with these belts (application means), thereby applying multiple adhesive sheets to the adherend. This has the disadvantage that the application means becomes large in the direction of conveyance of the adherend, resulting in a large device.

The object of the present invention is to provide a sheet application device and a sheet application method that can prevent the device from becoming too large.

The present invention employs the configuration described in the claims.

According to the present invention, the adherend is rotated at a predetermined application position and multiple adhesive sheets are applied to the adherend, so that the application means does not become large in the transport direction of the adherend, and the device can be prevented from becoming large.
Furthermore, by imparting a holding force for holding the adhesive sheet to the belt looped around the first pulley and the second pulley and imparting a rotational force to the belt, the adhesive sheet can be attached to the adherend with a simple configuration.
Furthermore, if the application auxiliary means includes a plurality of rollers which sandwich the adherend between the first pulley, the adherend can be securely sandwiched at the predetermined application position.

FIG. 1 is an explanatory diagram of a sheet sticking device according to an embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be described with reference to FIG.
In this embodiment, the X-axis, Y-axis, and Z-axis are mutually orthogonal, the X-axis and Y-axis are axes within a specified plane, and the Z-axis is an axis orthogonal to the specified plane. Furthermore, in this embodiment, the view from the front direction of Fig. 1 parallel to the Z-axis is used as a reference, and when indicating directions, "up" is the front direction of Fig. 1, "down" is the opposite direction, "left" is the direction of the X-axis arrow, "right" is the opposite direction, "front" is the direction of the Y-axis arrow, and "rear" is the opposite direction.

The sheet application device EA of the present invention comprises a supply means 10 that peels off and supplies multiple adhesive sheets AS from an original roll RS to which the adhesive sheets AS have been temporarily attached at a predetermined first interval GP1 to a release sheet RL, and an application means 20 that holds multiple adhesive sheets AS supplied by the supply means 10 at a predetermined second interval GP2 and applies the multiple adhesive sheets AS to a single adherend WK while maintaining the second interval GP2, and is disposed near a transport means 30 that transports the adherend WK.

The supply means 10 includes a support roller 11 that supports the original roll RS, a number of guide rollers 12 that guide the original roll RS, a peeling plate 13 as a peeling means that folds back the release sheet RL at the peeling edge 13A and peels off the adhesive sheet AS from the release sheet RL, a drive roller 14 that is supported by an output shaft (not shown) of a rotary motor 14A as a driving device and that pinches the release sheet RL between itself and the pinch roller 14B, and a recovery roller 15 that is supported by an output shaft (not shown) of the driving device and that constantly applies a predetermined tension to the release sheet RL that is between itself and the pinch roller 14B while the sheet attachment device EA is in automatic operation, and recovers the release sheet RL.

The application means 20 includes a first pulley 21, a second pulley 22, a suction belt 23 as a belt looped around the first pulley 21 and the second pulley 22, a suction chamber 24 as a holding force applying means connected to a pressure reducing means (not shown) such as a pressure reducing pump or a vacuum ejector and applying a suction force as a holding force for holding the adhesive sheet AS to the suction belt 23, a rotary motor 25 as a driving device which supports the second pulley 22 with an output shaft (not shown) and applies a rotational force to the suction belt 23, and an application auxiliary means 26 which rotates the adherend WK at a predetermined application position AP to apply the adhesive sheet AS to the adherend WK.
The application auxiliary means 26 includes first and second rollers 26C and 26F as a plurality of rollers that sandwich the adherend WK between the first pulley 21 and the application auxiliary means 26 via the suction belt 23. That is, the application auxiliary means 26 includes a first roller 26C rotatably supported on an output shaft 26B of a first linear motor 26A as a driving device, and a second roller 26F rotatably supported on an output shaft 26E of a second linear motor 26D as a driving device.

The conveying means 30 includes a conveyor 31, such as a belt conveyor or roller conveyor, and a guide bar 32 that guides the adherend WK to the application position AP.

The operation of the sheet sticking apparatus EA will now be described.
First, a user of the sheet application device EA (hereinafter simply referred to as "user") sets the original roll RS on the sheet application device EA, in which each member is arranged in the initial position shown by the solid line in Fig. 1(A), as shown in the figure, and then inputs a signal to start automatic operation via an operation means such as an operation panel or a personal computer (not shown). Then, the supply means 10 drives the rotary motor 14A to pay out the original roll RS, and when the leading end of the leading adhesive sheet AS in the payout direction is peeled off a predetermined length by the peeling edge 13A of the peeling plate 13, the drive of the rotary motor 14A is stopped. Next, the conveying means 30 drives the conveyor 31, and the adherend WK is conveyed in a predetermined conveying direction TD along the guide bar 32. When the adherend WK reaches a predetermined position relative to the supplying means 10, the supplying means 10 and the attaching means 20 drive the rotating motors 14A and 25 and the decompression means (not shown) to pay out the original roll RS, and rotate the suction belt 23 in a counterclockwise direction while applying suction force in the suction chamber 24. As a result, the leading adhesive sheet AS and the following second adhesive sheet AS are peeled off from the release sheet RL, and the two peeled adhesive sheets AS are sucked and held by the suction belt 23 and conveyed toward the attaching position AP, as shown by the two-dot chain line in FIG. 1(A). At this time, the second interval GP2 between the leading adhesive sheet AS and the second adhesive sheet AS is set to half the length obtained by subtracting the payout direction length of each adhesive sheet AS from the outer circumferential length of the adherend WK. Thereafter, when the leading adhesive sheet AS reaches a predetermined position near the first pulley 21, the application means 20 stops driving the rotary motor 25, while when the tip end in the payout direction of the third adhesive sheet AS following the second adhesive sheet AS is peeled off a predetermined length by the peeling edge 13A of the peeling plate 13, the supply means 10 stops driving the rotary motor 14A.

Next, when the adherend WK is placed at the application position AP by contacting the suction belt 23 and the first roller 26C, the application means 20 drives the second linear motor 26D to move the second roller 26F forward as shown by the two-dot chain line in Fig. 1(A), and the adherend WK is clamped between the first pulley 21 via the suction belt 23 and the first and second rollers 26C and 26F. The application means 20 then drives the rotary motor 25 to rotate the suction belt 23 counterclockwise, and the first adhesive sheet AS and the second adhesive sheet AS are applied to the adherend WK as shown in Fig. 1(B). Next, when the attachment of the two adhesive sheets AS to the adherend WK is completed, the attachment means 20 stops driving the rotary motor 25 and the decompression means (not shown), and then drives the first and second linear motors 26A and 26D to retract the first roller 26C backward and return the second roller 26F to its initial position as shown in FIG. 1(C), and transport the adherend WK to the next process. After that, when the adherend WK is no longer at the attachment position AP, the attachment means 20 drives the first linear motor 26A to return the first roller 26C to its initial position, and the same operations as above are repeated thereafter.

According to the above embodiment, the adherend WK is rotated at a predetermined attachment position AP to attach multiple adhesive sheets AS to the adherend WK, so the attachment means 20 does not become large in the transport direction TD of the adherend WK, and the device can be prevented from becoming large.

As described above, the best configurations, methods, etc. for implementing the present invention have been disclosed in the above description, but the present invention is not limited thereto. In other words, the present invention has been mainly illustrated and described with reference to specific embodiments, but those skilled in the art can make various modifications to the above-described embodiments in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and purpose of the present invention. Furthermore, the descriptions limiting the shapes, materials, etc. disclosed above are provided as examples to facilitate understanding of the present invention, and do not limit the present invention. Therefore, descriptions of the names of components that remove some or all of the limitations on the shapes, materials, etc. are included in the present invention.

The supply means 10 may supply adhesive sheets AS of the same type or different types, and may feed out a raw roll in which a closed loop or a cut in the entire short width direction is formed in a strip-shaped adhesive sheet base material temporarily attached to a release sheet RL, and a predetermined area partitioned by the cut is made into the adhesive sheet AS, or may use a raw roll in which a strip-shaped adhesive sheet base material is temporarily attached to a release sheet RL, and a cutting means forms a closed loop or a cut in the entire short width direction in the adhesive sheet base material, and a predetermined area partitioned by the cut is made into the adhesive sheet AS, or may support or guide the raw roll RS or release sheet RL with a plate-shaped member or a shaft member instead of each roller such as the support roller 11 or the guide roller 12, or may support the raw roll RS by folding it, for example, in a fan fold, without rolling it up, or may collect the release sheet RL by folding it, for example, in a fan fold, cutting it with a shredder, or randomly piling it up, or may not collect the release sheet RL.

The attachment means 20 is supported by a slider of a linear motor as a driving device and is equipped with a holding plate having a holding surface that can be adsorbed and held by a pressure reduction means (holding means) not shown, such as a pressure reduction pump or a vacuum ejector, and may be configured to hold multiple adhesive sheets AS with the holding plate at a second interval GP2, or may hold multiple adhesive sheets AS so that the second interval GP2 is the same as the first interval GP1, a greater interval than the first interval GP1, or a smaller interval than the first interval GP1, may receive adhesive sheets AS from the supply means 10 while attaching the adhesive sheets AS to the adherends WK, or may hold and attach three or more adhesive sheets AS, and when holding and attaching three or more adhesive sheets AS, the second intervals GP2 of each adhesive sheet AS may all be the same or may be different intervals.
The holding force imparting means may be configured to impart Coulomb force, adhesive force, adhesion force, magnetic force, or the like as the holding force to the belt.
The application assistance means may be configured in such a way that multiple rollers are supported on the output shaft of a single linear motor, or the adherend WK may be clamped between the first pulley 21 and a single or three or more rollers, the adherend WK may be clamped between the first pulley 21 by spraying air or a gas such as air or gas, or the adherend WK may be clamped between the first pulley 21 and a belt running between two pulleys.
The rotational force imparting means may drive the first pulley 21 in place of or in combination with the second pulley 22 to impart a rotational force to the belt for rotating the adherend WK, or may directly impart a rotational force to the belt.

The conveying means 30 may, for example, be an articulated robot as a driving device for conveying the adherend WK, or the conveyor 31 may be stopped while the adhesive sheet AS is being applied to the adherend WK, and may or may not be included in the sheet application device EA of the present invention. If not, the adherend WK may be conveyed by another device.

The sheet application device EA may be equipped with an imaging means such as a camera or projector that detects the diameter of the substrate WK, a detection means composed of various sensors such as optical sensors and ultrasonic sensors, and a control means such as a personal computer or sequencer that calculates the second spacing GP2 based on the detection results of the detection means, or the user may input the size of the second spacing GP2 into the control means in advance.
The sheet application apparatus EA may form the second gap GP2 by the operation of the supplying means 10, or may form the second gap GP2 by the operation of the application means 20, or may form the second gap GP2 by both of these operations; for example, the supplying means 10 may form the second gap GP2 by adjusting the timing at which it supplies the adhesive sheet AS to the application means 20, or the application means 20 may form the second gap GP2 by adjusting the rotational speed of the suction belt 23, or the second gap GP2 may be formed by adjusting both of these.

The means and steps of the present invention are not limited in any way as long as they can perform the operations, functions or steps described for those means and steps, and are in no way limited to the components and steps of just one embodiment shown in the above embodiment. For example, the supplying means may be anything that can peel and supply an adhesive sheet from a base roll to which multiple adhesive sheets have been temporarily attached at a predetermined first interval to a release sheet, and is not limited in any way as long as it is within the technical scope in light of the common general technical knowledge at the time of filing the application (the same goes for other means and steps).

The material, type, shape, etc. of the adhesive sheet AS and the adherend WK are not particularly limited. For example, the adhesive sheet AS and the adherend WK may be circular, elliptical, polygonal such as a triangle or a rectangle, or other shapes, and the adhesive sheet AS may be pressure-sensitive adhesive, heat-sensitive adhesive, or other adhesive form. In addition, such an adhesive sheet AS may be, for example, a single layer of only an adhesive layer, one having an intermediate layer between the substrate and the adhesive layer, one having three or more layers such as a cover layer on the upper surface of the substrate, or even a so-called double-sided adhesive sheet in which the substrate can be peeled off from the adhesive layer, and the double-sided adhesive sheet may be one having a single layer or multiple layers of intermediate layers, or one having no intermediate layer or multiple layers. The adherend WK may be, for example, a single object such as food, a resin container, a semiconductor wafer such as a silicon semiconductor wafer or a compound semiconductor wafer, a circuit board, an information recording substrate such as an optical disk, a glass plate, a steel plate, a ceramic plate, a wooden board, or a resin, or may be a composite formed of two or more of these, and may also be a member or an article of any shape. The adhesive sheet AS may be read in terms of its function or use, for example, any sheet, film, tape, etc., such as an information label, a decorative label, a protective sheet, a dicing tape, a die attach film, a die bonding tape, or a recording layer-forming resin sheet.

The driving equipment in the above-described embodiments may be electric equipment such as a rotary motor, a linear motor, a single-axis robot, or a multi-joint robot having joints on two or more axes, or an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, or a rotary cylinder, or a direct or indirect combination of these may also be used.
In the above-described embodiment, when a rotating member such as a roller is used, a driving device for rotating the rotating member may be provided, the surface of the rotating member or the rotating member itself may be made of a deformable material such as rubber or resin, or the surface of the rotating member or the rotating member itself may be made of a non-deformable material, or other members such as a rotating or non-rotating shaft or blade may be used instead of the roller, and when a pressing means or pressing member such as a pressing roller or a pressing head that presses an object to be pressed is used, a member such as a roller, a round bar, a blade material, rubber, resin, sponge, etc. may be used instead of or in combination with the above-described examples, or a configuration in which pressing is performed by blowing air or gas, etc., may be used, or the pressing means may be made of a deformable material such as rubber or resin. Alternatively, it may be made of a non-deformable material, and when a peeling means or peeling member such as a peeling plate or peeling roller that peels off the material to be peeled is used, a plate-shaped member, a round bar, a roller, or other member may be used instead of or in combination with the above-mentioned examples, and the peeling means may be made of a deformable material such as rubber or resin, or may be made of a non-deformable material, and when a cutting means or cutting member that cuts the material to be cut or forms an incision or cutting line in the material to be cut is used, it may be used instead of or in combination with the above-mentioned examples to cut with a cutter blade, a laser cutter, an ion beam, fire, heat, water pressure, an electric heating wire, or spraying of gas or liquid, or the like, or a combination of appropriate driving devices may be used to move the cutting means to cut.

EA...Sheet application device 10...Supply means 20...Application means 21...First pulley 22...Second pulley 23...Suction belt (belt)
24...Suction chamber (holding force applying means)
25...Rotation motor (rotational force applying means)
26... Application assistant means 26C... First roller (roller)
26F...Second roller (roller)
AP... Application position AS... Adhesive sheet GP1... First gap GP2... Second gap RL... Release sheet RS... Original sheet WK... Adherend

Claims (3)

a supplying means for peeling and supplying a plurality of adhesive sheets from an original roll to which a release sheet has been temporarily attached at a first predetermined interval;
and an attachment means for holding a plurality of the adhesive sheets supplied by the supply means at a predetermined second interval and attaching the plurality of the adhesive sheets to a single adherend while maintaining the second interval,
said application means comprising a first pulley, a second pulley, a belt looped around said first pulley and said second pulley, a holding force imparting means for imparting a holding force to said belt to hold said adhesive sheet, a rotational force imparting means for imparting a rotational force to said belt, and an application auxiliary means for rotating said adherend at a predetermined application position without moving said adherend from said application position to apply said adhesive sheet to said adherend. 2. The sheet sticking device according to claim 1 , wherein the sticking assistant means includes a plurality of rollers which sandwich the adherend between the first pulley and the belt. a supplying step of peeling and supplying a plurality of adhesive sheets from an original roll to which the adhesive sheets have been temporarily attached at a first interval to a release sheet;
a bonding step of holding the adhesive sheets supplied in the supply step at a predetermined second interval and bonding the plurality of adhesive sheets to a single adherend while maintaining the second interval;
The sheet application method is characterized in that, in the application step, a holding force for holding the adhesive sheet is imparted to a belt looped around a first pulley and a second pulley, and an application assistance step is performed in which a rotational force is imparted to the belt, and the adhesive sheet is applied to the adherend by rotating the adherend at a predetermined application position without moving the adherend from the application position.

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