JP7343945B1 - Protective material peeling device and protective material peeling method - Google Patents

Abstract

The present invention provides a protective material peeling device and a protective material peeling method for peeling off a sheet-like or film-like protective material attached to a plate-like member. A protective material P peeling device 10 is a protective material P peeling device that peels off a protective material P stuck to a plate-like member AR, and includes a protrusion forming member in which a protruding protrusion 404 is formed. , a feeding mechanism 20 that conveys the adhesive tape TP to which the plate member AR is attached via the protective material P along a predetermined conveyance route, and a surface of the plate member AR to which the protective material P is attached. includes a first roller 60 that contacts the opposite surface and presses the adhesive tape TP to which the plate member AR is attached against the protrusion 404. [Selection diagram] Figure 1

Description

The present invention relates to a protective material peeling device and a protective material peeling method.

Patent Document 1 discloses that a long adhesive tape with tension is applied to the surface of a protective sheet of the same shape that is attached to a thin plate having at least one vertex, and is pulled up from the thin plate while being pressed and adhered. A method for peeling a thin protective sheet used in a protective sheet peeling device is described. This peeling method is characterized in that the initial pulling-up portion of the pressure-adhesive adhesive tape is one vertex of the protective sheet.

Patent Document 2 describes a protective sheet peeling device that peels a protective sheet from a planar part to which a protective sheet is attached. This protective sheet peeling device includes an adhesive tape that moves with the adhesive side facing up, a hitting arm that has a hitting plate that intermittently hits the bottom surface of the adhesive tape, and a cam unit that drives the hitting arm, Place the flat part on the adhesive tape with the protective sheet facing down, move it along with the adhesive tape, and intermittently hit the protective sheet from below through the adhesive tape with the hitting plate of the hitting arm to attach the protective sheet to the adhesive tape. The protective sheet is peeled off from the planar parts during ejection.

Japanese Patent Application Publication No. 9-114384 JP2021-84787A

An object of the present invention is to provide a protective material peeling device and a protective material peeling method for peeling off a sheet-like or film-like protective material attached to a plate-like member.

The invention according to claim 1 is a protective material peeling device for peeling off a sheet-like or film-like protective material affixed to a plate-like member, wherein the protective material is attached to the plate-like member through the protective material. a feeding mechanism for feeding an adhesive tape for conveying a plate-shaped member; a protrusion-forming member having a protruding portion formed thereon; and a surface of the plate-shaped member conveyed by the adhesive tape to which the protective material is attached. a first roller that contacts a surface opposite to the surface and presses the adhesive tape against the protrusion, and when the plate-like member passes between the protrusion and the first roller, , a protective material peeling device in which the protective material is peeled from the plate-like member by the adhesive tape .

According to a second aspect of the invention, in the protective material peeling device according to the first aspect, the first roller presses the front end of the plate member against the protrusion.

According to a third aspect of the invention, the protective material peeling apparatus according to the second aspect further includes a supply section that holds the plurality of plate-like members in a vertically stacked manner.

The invention according to claim 4 is the protective material peeling device according to claim 3, in which the adhesive tape passes under the plate-like member held at the lowest position by the supply section, and The protective material attached to the member contacts the adhesive surface of the adhesive tape.

The invention according to claim 5 is the protective material peeling device according to claim 4, which is arranged downstream of the supply section in the conveying direction and upstream of the first roller in the conveying direction, and the adhesive surface of the adhesive tape is The device further includes a second roller that presses the protective material against the protective material.

According to a sixth aspect of the invention, in the protective material peeling device according to the fifth aspect, the feeding mechanism includes a conveyance roller that feeds the adhesive tape.

The invention according to claim 7 is characterized in that a feeding mechanism for feeding an adhesive tape for adhering to a sheet-like or film-like protective material attached to a plate-like member and conveying the plate-like member, and a protruding portion formed therein. a roller that contacts the surface of the plate-shaped member conveyed by the adhesive tape on the opposite side of the surface to which the protective material is attached, and presses the adhesive tape against the protrusion; A protective material peeling method using a protective material peeling device comprising : a step in which the feeding mechanism feeds the adhesive tape stuck to the plate-like member via the protective material; and a step in which the roller is , a step of pressing the adhesive tape that conveys the plate-like member against the protrusion, and the adhesive tape peels off the protective material from the plate-like member that has passed between the protrusion and the roller. A method for removing a protective material includes steps.

According to the present invention, it is possible to provide a protective material peeling device and a protective material peeling method for peeling off a sheet-like or film-like protective material attached to a plate-like member.

FIG. 1 is an external view of a protective sheet peeling device according to an embodiment of the present invention. It is a front view of the peeling device of the same protection sheet. FIG. 2 is an explanatory diagram schematically showing an acrylic resin plate and an adhesive tape in a supply section of the protective sheet peeling device. FIG. 2 is an explanatory diagram (part 1) showing the operation of the protective sheet peeling device, and is an enlarged front view of the periphery of the protrusion forming member. FIG. 2 is an explanatory diagram (part 2) showing the operation of the protective sheet peeling device, and is an enlarged front view of the periphery of the protrusion forming member. FIG. 3 is an explanatory diagram (part 3) showing the operation of the protective sheet peeling device, and is an enlarged front view of the periphery of the protrusion forming member. FIG. 4 is an explanatory diagram (part 4) showing the operation of the protective sheet peeling device, and is an enlarged front view of the periphery of the protrusion forming member. FIG. 5 is an explanatory diagram (part 5) showing the operation of the protective sheet peeling device, and is an enlarged front view of the periphery of the protrusion forming member.

Next, embodiments embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention. Note that illustration of portions not related to the description may be omitted.

A peeling device 10 (see FIG. 1) for a protective sheet P according to an embodiment of the present invention removes a protective sheet P attached to an acrylic resin plate (an example of a plate-like member) AR using an adhesive tape TP. The acrylic resin plate AR from which the protective sheet P has been peeled off can be discharged.
Note that the thickness of the acrylic resin plate AR is, for example, 1.0 to 5.0 mm.
Further, the protective sheet (sheet-shaped protective material) P is, for example, a sheet made of paper. Instead of the protective sheet P, a protective film (film-like protective material) may be used, and any sheet-like or film-like protective material for protecting the surface of the plate-like member may be used.

As shown in FIG. 2, the peeling device 10 for the protective sheet P (hereinafter simply referred to as "peeling device 10") includes a feeding mechanism 20, a supply section 30, a protrusion forming member 40, a roller 50, a roller 60, a roller 70, and A control section 80 is provided.

The feeding mechanism 20 has a supply reel 202, a driven roller 204 (see FIG. 3), conveyance rollers 206a, 206b, and a take-up reel 208, and carries an adhesive tape TP to which an acrylic resin plate AR is attached via a protective sheet P. It can be sent in one direction and transported along a predetermined transport route.

As shown in FIG. 2, the supply reel 202 can hold the adhesive tape TP wound into a roll. Note that the width of the adhesive tape TP is larger than the width of the acrylic resin plate AR.
As shown in FIG. 3, the driven roller 204 is provided below the supply section 30 and can change the feeding direction of the adhesive tape TP pulled out from the supply reel 202.

The conveyance rollers 206a and 206b (see FIG. 2) can convey the adhesive tape TP to which the protective sheet P is stuck, sandwiched therebetween. The conveyance roller 206a is driven by a feed motor (not shown) at a predetermined rotational speed. The feed motor is, for example, a pulse motor.

The take-up reel 208 can take up the adhesive tape TP sent from the supply reel 202 and to which the protective sheet P is attached. The take-up reel 208 is driven by a torque-controlled take-up motor (not shown). Therefore, the adhesive tape TP is wound while being controlled so that the tension is within a preset range. The winding motor is, for example, a servo motor.
Note that the feeding mechanism 20 may be driven manually instead of using a motor.
The conveyance route of the adhesive tape TP conveyed by the conveyance mechanism 20 will be described later.

As shown in FIG. 1, the supply section 30 is provided on a steel base member 102, and can hold a plurality of acrylic resin plates AR with protective sheets P stacked in the vertical direction. Each acrylic resin plate AR is held with the protective sheet P facing down.

The supply section 30 includes an abutment member 302 and a holder 304.
The abutting member 302 is an angular member extending in the vertical direction, and two different locations of the acrylic resin plate AR are abutted against each other when viewed from above.
The retainer 304 includes at least an angled rod member 306 extending in the vertical direction and a magnet holder base 308 to which the rod member 306 is fixed. The magnet holder base 308 can generate magnetic force by manually rotating the lever 310, and can be easily attached to and detached from the base member 102.

In the supply unit 30, the position of the retainer 304 with respect to the abutting member 302 is adjusted according to the shape of the acrylic resin plate AR with the protective sheet P, so that the retainer 304 is formed between the abutting member 302 and the retainer 304. The size of the space is adjusted, and acrylic resin plates with protective sheets of arbitrary size are stacked and held.

The protrusion forming member 40 is a member fixed to the upper surface of the base member 102, as shown in FIG. The protrusion forming member 40 has a receiving part 402, a first protruding part 404, and a second protruding part 406, and the widths of the receiving part 402, the first protruding part 404, and the second protruding part 406 are as follows. Each width is larger than the width of the adhesive tape TP, and the non-adhesive surface (the surface opposite to the adhesive surface) of the adhesive tape TP contacts.

The receiving portion 402 has a horizontal surface that serves as a receiving portion for the roller 50 to press the acrylic resin plate AR with the protective sheet P onto the adhesive tape TP. Note that the "horizontal surface" referred to here is not a horizontal surface in the strict sense of the word. That is, a "horizontal surface" means a "substantially horizontal surface" with allowances for design and manufacturing errors (the same applies hereinafter). Specifically, for example, the surface may be within a range of -5 degrees to +5 degrees with respect to the horizontal line.

The first protruding part 404 protrudes above the receiving part 402, and when viewed from the front, has a curved surface formed on the upstream side in the conveying direction of the adhesive tape TP, and has a substantially curved surface on the downstream side in the conveying direction from the top part. A vertical surface is formed. In other words, when viewed from the front, the first protrusion 404 gradually increases in height from the upstream side toward the downstream side in the conveyance direction, and has a shape cut off at the top. It is preferable that the degree of change in height toward the downstream side in the transport direction gradually decreases.

The second protrusion 406 protrudes at a lower position than the first protrusion 404 in the direction in which the acrylic resin plate AR from which the protective sheet P has been peeled off is discharged, and has a curved surface formed at its tip.
The second protrusion 406 can change the orientation of the adhesive tape TP to which the peeled protective sheet P is attached.

The roller (an example of a second roller) 50 contacts the surface of the acrylic resin plate AR opposite to the surface to which the protective sheet P is attached, and presses the protective sheet P against the adhesive surface of the adhesive tape TP. I can do it.
The roller 50 is disposed downstream of the supply section 30 in the conveying direction and upstream of the roller 60 in the conveying direction, and is provided on the roller holding member 502. The roller holding member 502 can rotate around a rotation axis AX extending in the horizontal direction (see arrow R1 shown in FIG. 4), and has a hole H502 formed at a position away from the rotation axis AX when viewed from the front. One end of one tension coil spring 504 is attached. Due to the action of the first tension coil spring 504, a force is applied to the roller 50 in a direction in which it is pressed against the receiving portion 402.
In addition, in each figure, the upper part of the first tension coil spring 504 is omitted, and only the lower part is shown.

Therefore, when the acrylic resin plate AR with the protective sheet P passes between the roller 50 and the receiving part 402, the roller 50 moves up and down as the acrylic resin plate AR with the protective sheet P passes.
Here, depending on the configuration of the peeling device 10, if the roller 50 is not provided, a phenomenon may occur in which the adhesive tape TP is conveyed in a meandering manner and becomes tangled. Such a phenomenon is suppressed by the roller 50.

The roller (an example of a first roller) 60 contacts the surface of the acrylic resin plate AR opposite to the surface to which the protective sheet P is attached, and is an adhesive tape TP to which the acrylic resin plate AR with the protective sheet P is attached. can be pressed against the first protrusion 404 .
The roller 60 is disposed on the downstream side in the conveying direction of the roller 50 and above the first protrusion 404 when viewed from the front, and is provided on the roller holding member 602 . The roller holding member 602 can rotate around a rotation axis AX extending in the horizontal direction (see arrow R2 shown in FIG. 4), and has a second hole H602 formed at a position away from the rotation axis AX when viewed from the front. One end of a tension coil spring 604 is attached. Due to the action of the second tension coil spring 604, a force is applied to the roller 60 in a direction in which it is pressed against the first protrusion 404.
In each figure, the upper part of the second tension coil spring 604 is omitted, and only the lower part is shown.

Therefore, when the acrylic resin plate AR with the protective sheet P passes between the roller 60 and the first protrusion 404, the roller 60 moves up and down as the acrylic resin plate AR with the protective sheet P passes.

The roller 70 can guide the acrylic resin plate AR from which the protective sheet P has been peeled off. The acrylic resin plate AR guided by the roller 70 is discharged in the direction of arrow X shown in FIG.
The roller 70 is disposed on the opposite side of the roller 50 across the roller 60 in plan view, and is provided on a common roller holding member 602 with the roller 60, as shown in FIG.
Therefore, the roller 70 moves as the roller 60 moves.

The control unit 80 includes a drive device for supplying drive current to a feed motor (not shown) that drives the transport roller 206a and a take-up motor (not shown) that drives the take-up reel 208, and a drive device that supplies drive current to the feed motor (not shown) that drives the conveyance roller 206a and the take-up motor (not shown) that drives the take-up reel 208, respectively. It is a control device for controlling. These drive devices and control devices are housed in a housing 802, as shown in FIGS. 1 and 2.

The body parts of a feed motor (not shown) and a take-up motor (not shown) are also housed inside the casing 802, and the rotational shafts of the take-up motor and the feed motor are respectively connected to the casing 802. It is provided so as to protrude from the surface to the front side.
As shown in FIG. 1, the base member 102 is fixed to the front side of the upper surface of the housing 802 so as to protrude toward the front side.

In the peeling device 10, the adhesive tape TP is sent through the transport path shown below.
First, as shown in FIG. 2, the adhesive tape TP pulled out from the supply reel 202 is pulled by the conveying rollers 206a and 206b with the adhesive surface facing upward, and is directed toward the lower side of the supply section 30. It is fed in the horizontal direction by a driven roller 204 located below the supply section 30.
That is, the adhesive tape TP passes under the acrylic resin plate AR with the protective sheet P at the lowest position held by the supply unit 30, and a part of the acrylic resin plate AR with the protective sheet P is covered with the adhesive of the adhesive tape TP. touch the surface.

Next, as shown in FIG. 4, the adhesive tape TP fed in the horizontal direction passes through a position between the roller 50 and the receiving part 402 (position A), and then passes between the roller 60 and the first protruding part 404. The direction is changed at the position where the second protrusion 406 is located (position C, which is higher than position A and lower than position B). It is sent diagonally downward. In addition, when the feeding direction changes at position C, the adhesive surface of the adhesive tape TP becomes the lower side.

Finally, as shown in FIG. 2, the adhesive tape TP sent diagonally downward passes between transport rollers 206a and 206b and is wound onto a take-up reel 208 driven by a take-up motor (not shown). taken.

Next, the operation of the peeling device 10 (method of peeling off the protective sheet P) will be explained based on FIGS. 4 to 8.
The peeling device 10 operates according to steps S1 to S7 below.

(Step S1)
A roll of adhesive tape TP is held on a supply reel 202 of the peeling device 10, and is attached so that the adhesive tape TP pulled out from the supply reel 202 extends to a take-up reel 208 along a conveyance path.
Further, the supply unit 30 holds a plurality of acrylic resin plates AR with protective sheets P attached thereto.

(Step S2)
The feeding mechanism 20 operates, and the conveying rollers 206a and 206b (see FIG. 2) feed the sandwiched adhesive tape TP. As the adhesive tape TP moves, the protective sheet P covering the lower surface of the acrylic resin plate AR with the protective sheet P at the lowest position of the supply section 30 sticks to the adhesive surface of the adhesive tape TP, as shown in FIG. , the acrylic resin plate AR with the protective sheet P is placed on the adhesive tape TP and taken out in the transport direction. The taken out acrylic resin plate AR with the protective sheet P is detected by a reflective photoelectric sensor SEN.
When the acrylic resin plate AR with the protective sheet P is taken out, the subsequent acrylic resin plates AR with the protective sheets P placed on it are also taken out one after another.

(Step S3)
As shown in FIG. 5, the acrylic resin plate AR with the protective sheet P and the adhesive tape TP are sandwiched between the roller 50 and the receiving portion 402 and pressed with a predetermined force.

(Step S4)
When the acrylic resin plate AR with the protective sheet P moves further downstream, as shown in FIG. 6, while the contact with the roller 50 is maintained, the front end floats and the lower edge of the front end becomes part of the protrusion forming member. 40 and contacts the first protrusion 404 formed in the first protrusion 404 .

(Step S5)
When the acrylic resin plate AR with the protective sheet P moves further downstream, as shown in FIG. The first protrusion 404 rides on the first protrusion 404 . That is, the roller 60 presses the front end of the acrylic resin plate AR with the protective sheet P against the first protrusion 404 .

(Step S6)
As shown in FIG. 8, the acrylic resin plate AR with the protective sheet P is moved while being pressed against the first protrusion 404 by the roller 60.
As a result, as the acrylic resin plate AR moves, the protective sheet P sticks to the adhesive surface and is peeled off.

The peeled protective sheet P, stuck to the adhesive surface, changes its conveyance direction at the second protrusion 406 formed on the protrusion forming member 40 and further moves to the downstream side of the conveyance path.
The acrylic resin plate AR from which the protective sheet P has been peeled off is guided by the roller 70 and discharged.

(Step S7)
After the acrylic resin plate AR passes, only the adhesive tape TP is used between the roller 50 and the receiving portion 402 and between the roller 60 and the first protrusion 404 until the subsequent acrylic resin plate AR passes. passes.

Thereafter, by repeating steps S2 to S7 described above, the acrylic resin plate AR with the protective sheet P is sequentially conveyed from the supply section 30, and the protective sheet P is peeled off.
Note that if the optical sensor SEN does not detect the acrylic resin plate AR with the protective sheet P even after the predetermined time has elapsed, the operation of the feeding mechanism 20 is stopped.

As explained above, according to the peeling device 10, the protective sheet P attached to the acrylic resin plate AR can be peeled off.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and any changes in conditions that do not depart from the gist are within the scope of the present invention.
The protective sheet P that can be peeled off by the above-mentioned peeling device 10 is not limited to that attached to the acrylic resin plate AR, and may be attached to a resin plate other than acrylic. Furthermore, the peeling device 10 can peel off any sheet-like or film-like protective material attached to a plate-like member.

10 Peeling device 20 Feed mechanism 30 Supply unit 40 Projection forming members 50, 60, 70 Roller 80 Control unit 102 Base member 202 Supply reel 204 Followed rollers 206a, 206b Conveyance roller 208 Take-up reel 302 Abutting member 304 Holder 306 Rod-shaped Member 308 Magnet holder base 310 Lever 402 Receiving portion 404 First protrusion 406 Second protrusion 502 Roller holding member 504 First tension coil spring 602 Roller holding member 604 Second tension coil spring 802 Housing AR Acrylic resin plate AX Rotating shaft H502, H602 Hole P Protective sheet TP Adhesive tape SEN Optical sensor

Claims (7)

A protective material peeling device for peeling off a sheet-like or film-like protective material affixed to a plate-like member,
a feeding mechanism that sends an adhesive tape that is attached to the plate-like member through the protective material and transports the plate-like member;
a protrusion forming member in which a protrusion is formed;
a first roller that contacts a surface opposite to the surface to which the protective material is attached of the plate- like member conveyed by the adhesive tape and presses the adhesive tape against the protrusion ;
A protective material peeling device in which the protective material is peeled off from the plate-like member by the adhesive tape when the plate-like member passes between the protrusion and the first roller. The protective material peeling device according to claim 1,
A protective material peeling device in which the first roller presses the front end of the plate member against the protrusion. The protective material peeling device according to claim 2,
A protective material peeling device further comprising a supply section that vertically stacks and holds a plurality of the plate-like members. The protective material peeling device according to claim 3,
the adhesive tape passes under the plate member held by the supply unit at the lowest position;
A peeling device for a protective material, in which the protective material attached to the plate- like member contacts an adhesive surface of the adhesive tape. The protective material peeling device according to claim 4,
A protective material peeling device further comprising a second roller disposed downstream of the supply section in the conveyance direction and upstream of the first roller in the conveyance direction and presses the protective material against the adhesive surface of the adhesive tape. . The protective material peeling device according to claim 5,
A protective material peeling device in which the feeding mechanism includes a conveyance roller that feeds the adhesive tape. a feeding mechanism for feeding an adhesive tape that is attached to a sheet-like or film-like protective material affixed to a plate-like member and for conveying the plate-like member; a protrusion-forming member on which a protrusion is formed; A protective material peeling device comprising: a roller that contacts a surface opposite to the surface to which the protective material is attached of the plate-like member conveyed by the adhesive tape and presses the adhesive tape against the protrusion. A method for removing a protective material,
a step in which the feeding mechanism feeds the adhesive tape stuck to the plate-like member via the protective material ;
a step in which the roller presses the adhesive tape that conveys the plate-like member against the protrusion;
A method for peeling off a protective material, including the step of peeling off the protective material from the plate-like member that has passed between the protrusion and the roller using the adhesive tape .