JP6581834B2 - Gripping part forming method for releasing release paper on sheet material and sheet material laminating method using the same - Google Patents

Description

  The present invention relates to a method for forming a gripping part for peeling release paper on a sheet material and a method for laminating sheet materials using the same.

  When making a laminated body by laminating sheet materials with release paper, it is necessary to release the release paper on the sheet material.

  The conventional release paper peeling method is a method in which, for example, the edge of the release paper is manually peeled off using a sharp conical tool, and the release paper is adsorbed and peeled off using this as an opportunity.

  In the case of such a conventional technique, manual peeling off of the end of the release paper has a problem in that it requires careful attention and is inefficient in operation, which is an obstacle to automation.

  Therefore, in view of the problems of the prior art, the object of the present invention is to release the release paper from the sheet material without consuming any special members by repeatedly hitting the vicinity of the corner of the sheet material with the release paper. It is an object of the present invention to provide a gripping portion forming method for peeling release paper on a sheet material that can automatically and easily form a gripping portion for the purpose, and a method of laminating sheet materials using the same.

  In order to achieve this object, the structure of the invention of claim 1 is configured to adsorb and hold only the release paper side of one side of the sheet material having a rigidity higher than that of the release paper, and the corner portion of the sheet material via the striking rod. The sheet material is repeatedly struck from the release paper side within a predetermined range including the sheet material, and each time the impact is applied, the sheet material elastically bends from the release paper side to the sheet material side, whereby a part of the release paper including the corners is removed from the sheet material. The gist is to form the grip portion by separating them.

  In addition, it is possible to suck and hold positions that are three times or more of the vertical and horizontal widths of the predetermined range, and to hit the predetermined range several hundred times with a frequency of several tens of times / second.

  According to the fourth aspect of the present invention, the release paper side of the sheet material with release paper is sucked and held, and a predetermined range including the corner portion of the sheet material is repeatedly struck from the release paper side to release the release portion including the corner portion. A part of the pattern paper is separated from the sheet material, a gripping part for peeling is formed on a part of the release paper on the new sheet material, the new sheet material is transferred onto the lower sheet material, and the new sheet material is transferred. The gist is that the spacer plate is sandwiched between the release paper gripping parts, a new sheet material is laminated on the lower sheet material, the release paper on the new sheet material is peeled off and removed, and the same procedure is repeated thereafter. .

  Note that the spacer plate can be sandwiched by pulling up the grip portion while pressing the peripheral portion of the grip portion, the grip portion can be lifted and gripped together with the spacer plate, and the release paper can be peeled by pulling the grip portion.

  According to the configuration of the first aspect of the present invention, when a predetermined range including the corner of the sheet material is repeatedly hit from the release paper side, a part of the release paper including the corner is separated from the sheet material. Thus, the separated part can be used as a gripping part for releasing the release paper. It should be noted that the sheet material has greater rigidity than the release paper, and is sufficiently bent and elastically restored each time a blow is applied. It is preferable to adsorb and hold from the side. This is because it is considered that when the sheet material is bent and bent between the striking position and the suction position, a shearing force acts on the adhesive surface between the release paper and the sheet material, and the release paper is separated from the sheet material. . Further, the frequency and number of hits may be on the order of several tens of times / second and several hundreds of times, respectively. However, the sheet material is peeled off, for example, as a necessary preparation prior to applying a blow in this way, for example, a protective film attached to one side of the release paper.

  According to the configuration of the invention of claim 4, a new sheet material in which a gripping part for peeling is formed on a part of the release paper including corners by impact is transferred and set on the lower sheet material, and the gripping part A new sheet material is laminated on the lower layer sheet material while holding the spacer plate between the two and preventing re-adhesion of the gripping part, and the release paper on the new sheet material is peeled off and removed by using the gripping part and the spacer is removed. The plate can be collected, and a predetermined number of sheet materials can be stacked in the same manner. The first sheet material in the lowermost layer is turned upside down so that the release paper side is the lower surface side, while the second and subsequent sheet materials are sequentially laminated with the release paper side as the upper surface side. . However, the first sheet material and the second sheet material are bonded to each other by the respective adhesiveness (tackiness) on the surface from which each protective film is removed, and each of the second and subsequent sheet materials is a lower release paper. The surface from which the surface has been removed and the surface from which the upper protective film has been removed are bonded together by their respective adhesive properties.

  If the spacer plate is sandwiched by pulling up the grip part while holding the periphery of the grip part, the shape of the grip part when inserting the spacer plate under the grip part is controlled to make the spacer plate insertion operation more reliable. Can be. Also, if the gripping part is pulled up and gripped together with the spacer plate, it is possible to reliably realize a strong gripping force necessary and sufficient for peeling the release paper, and to collect and reuse the spacer plate after peeling the release paper. it can. The spacer plate is preferably a thin stainless steel plate, for example.

Process procedure flowchart Material and laminate structure illustration Process procedure explanatory diagram (1) Process procedure explanatory diagram (2) Process procedure explanatory diagram (3) Schematic diagram corresponding to arrow A in FIG. Process procedure explanatory diagram (4) Process procedure explanatory diagram (5) Illustration of the structure of the holding plate Process procedure explanatory drawing (6) Process procedure explanatory diagram (7) Process procedure explanatory diagram (8) Process procedure explanatory diagram (9) Process procedure explanatory drawing (10) Process procedure explanatory drawing (11) Process procedure explanatory drawing (12) Process procedure explanatory diagram (13) Process procedure explanatory drawing (14)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The method for laminating the sheet material includes a method for forming a gripping part for peeling the release paper on the sheet material (step (3) in FIG. 1). However, the material used for the laminating method of FIG. 1 is configured, for example, by attaching a release paper 12 to one side of a rectangular sheet material 11 having a predetermined size having adhesiveness, and attaching a protective film 13 to the other side. (FIG. 2A). Further, the finished product of the laminate is provided with release paper 12 on both the lower surface and the upper surface of a predetermined number of sheet materials 11, 11... (FIG. (B)).

  Prior to the implementation of the laminating method of FIG. 1, first, the lower layer sheet materials 11 and 11 are set on the laminating table 22 (FIG. 3). The table 22 is provided with a large number of suction pads 21, 21... That open upward. The first sheet material 11 in the lowermost layer has the suction pad 21 on the release paper 12 side on the lower surface. It is being fixed on the table 22 via 21 .... The suction pads 21, 21... Are supported via support members 21 a under the table 22. However, in FIG. 3, the second sheet material 11 is laminated on the first sheet material 11 by, for example, the lamination method of FIG. 1 performed in advance, and the first sheet material 11 is The sheet material 11 turned upside down is transferred onto the table 22 in accordance with the procedure of steps (1) and (4) of FIG. 1 and fixed through the suction pads 21, 21. It has been removed.

  FIGS. 3A and 3B are a top view and a front view, respectively, and the same applies to FIGS. 4A and 4B and FIGS. Hereinafter, for the sake of convenience, the description starts from the point where the next new sheet material 11 is laminated on the two lower sheet materials 11, 11 of FIG. 3.

  When the setting of the lower layer sheet materials 11 and 11 on the stacking table 22 is completed, the stacking method is performed according to the flowchart of FIG. That is, the release sheet 12 side of the new sheet material 11 with the release sheet 12 is sucked downward and held by the suction pads 24, 24... Of the transfer machine 23 (step (1) in FIG. 1). 4), as a preparation, the protective film 13 on the lower surface side of the sheet material 11 is peeled off and removed ((2), two-dot chain line in FIG. 4B). The protective film 13 may be peeled off by suction from the lower side with another suction pad (not shown), for example. A part of the suction pads 24, 24... On the transfer machine 23 is arranged so as to surround a corner C at one corner of the sheet material 11.

  Subsequently, the inside of the predetermined range B including the corner portion C of the sheet material 11 on the transfer machine 23 is repeatedly hit to form a gripping portion for peeling the release paper 12 ((3), FIG. 5 and FIG. 6). . The base of the striking rod 31 within the predetermined range B is fixed to the rotary shaft 31a, and the rotary shaft 31a is rotationally driven by the motor 32 via the coupling case 32a and the bearing case 32b. The motor 32 is supported by a bracket 32d through a base material 32c together with a coupling case 32a and a bearing case 32b. The motor 31 is driven to rotate from the side of the release paper 12 by rotating the rod 31 obliquely intersecting the predetermined range B. The predetermined range B can be repeatedly hit (in the direction of the arrow in FIG. 6). However, the rod 31 strikes within a predetermined range B while moving reciprocally along one side of the sheet material 11 by horizontally moving one or both of the bracket 32d and the transfer machine 23 (see FIG. 5). Solid line, two-dot chain line). Note that the suction pads 24 and 24 closest to the predetermined range B with respect to the vertical and horizontal widths y and x of the predetermined range B are arranged at positions of Y ≧ 3y and X ≧ 3x, respectively.

  When the number of rotations and the rotation driving time of the rod 31 are set appropriately, the frequency and the number of times of impact are set to the order of several tens of times / second and several hundreds of times, respectively, and the impact within the predetermined range B is uniformly hit, the release paper 12 The part including the predetermined range B and the corner part C is separated from the sheet material 11 to form the peeling gripping part H (triangled hatched part in FIG. 7A). However, the shape and size of the gripping portion H in FIG. 7A are merely schematic conceptual diagrams, and do not indicate actual shapes and sizes. The striking rod 31 is preferably made of nylon (trade name) resin having appropriate elasticity, for example. Therefore, the new sheet material 11 in which the gripping portion H is formed on a part of the release paper 12 is transferred onto the lower sheet materials 11 and 11 on the stacking table 22 via the transfer machine 23 ((4) , Arrow direction in FIG. 7B). Since the new sheet material 11 is lightly bonded to the upper surface of the lower sheet material 11, 11, the suction pads 24, 24... On the transfer machine 23 side are then released to retract the transfer machine 23.

  Subsequently, the spacer plate 41 is sandwiched between the gripping portions H of the release paper 12 on the new sheet material 11 (FIGS. 8 to 13, (5)). However, at this time, the holding plate 42 mounted on a common robot hand (not shown), the suction pads 43 and 44 for the gripping portion H, and the spacer plate 41 are used (FIG. 8). The holding plate 42 and the suction pad 43 for the gripping part H can be individually moved up and down, and the suction pad 44 for the spacer plate 41 can be moved up and down independently and can be moved back and forth toward the gripping part H. . In addition, a regulating rod 44 a for maintaining the suction posture of the spacer plate 41 is suspended behind the suction pad 44 for the spacer plate 41.

  The holding plate 42 is formed in a blade plate shape that opens in a V-shape, for example (FIGS. 8 and 9). A shaft 42 a with a mounting screw hole 42 b is erected at an intermediate position of the pressing plate 42, and an upward inclined surface 42 c is formed in the opening direction of the pressing plate 42 at the base portion of the shaft 42 a. Therefore, the spacer plate 41 is put on standby at a predetermined height position via the suction pad 44, and the pressing plate 42 and the suction pad 43 for the gripping portion H are lowered (in the direction of the arrow in FIG. 8B) to hold the pressing plate. While holding the peripheral part of the gripping part H through 42, the suction pad 43 for the gripping part H is raised and the gripping part H is pulled up (in the direction of the arrow in FIG. 10B).

  Subsequently, when the suction pad 44 for the spacer plate 41 is moved forward (in the directions of the arrows in FIGS. 11A and 11B), the spacer plate 41 is inserted under the grip portion H. Therefore, when the suction pads 43 and 44 for the grip portion H and the spacer plate 41 are lowered (in the direction of the arrow in FIG. 12B) and the pressing plate 42 is retracted, the spacer plate 41 is sandwiched between the grip portions H. (FIG. 13, (5)). However, FIG. 13 illustrates a state in which the suction pads 43 and 44 are retracted after the spacer plate 41 is sandwiched.

  Next, the sheet material 11, 11... On the table 22 is covered with a flexible cover sheet 45 to deaerate the inside (FIG. 14), so that the new sheet material 11 is placed on the upper surface of the lower sheet material 11, 11. (6). At this time, since the spacer plate 41 is sandwiched between the gripping portions H, the gripping portion H is not reattached to the sheet material 11. When the lamination is completed, the cover sheet 45 is removed, but each operation of attaching and removing the cover sheet 45 may be performed manually or by a robot hand (not shown).

  Thereafter, the release paper 12 is peeled and removed together with the spacer plate 41 using the gripping portion H of the release paper 12 on the new sheet material 11 (FIGS. 15 to 18, (7)). That is, first, the suction pads 43 and 44 for the grip portion H and the spacer plate 41 are lowered (in the direction of the arrow in FIG. 15B), and the grip portion H is moved together with the spacer plate 41 via the suction pads 43 and 44. Pull up (arrow direction in FIG. 16B). At this time, the lower end of the restriction rod 44a behind the suction pad 44 for the spacer plate 41 abuts on the upper surface of the rear portion of the spacer plate 41 to prevent the spacer plate 41 from tilting forward.

  Subsequently, by using a lock piece 46 mounted on a robot hand (not shown), the holding portion H of the release paper 12 on the new sheet material 11 is held between the spacer plate 41 and the lock piece 46 (FIG. 17 ( Each arrow direction of A) and (B), FIG.17 (C)). Note that FIG. 17C is an enlarged view of a main part of FIG. The front end surface of the lock piece 46 facing the spacer plate 41 is formed in a V shape, and the lock piece 46 can move up and down independently and can move back and forth toward the spacer plate 41. The suction pads 44 for the spacer plate 41 are provided with left and right positioning pins (not shown) facing downward, and the positioning pins are arranged on the left and right sides of the spacer plate 41 when the spacer plate 41 is sucked by the suction pads 44. The pin holes 41a and 41a are penetrated from the top to the bottom (FIG. 17A), and the spacer plate 41 is restrained from being laterally displaced.

  Therefore, the lock pieces 46, the gripping portions H, and the suction pads 43, 44 for the spacer plate 41 are simultaneously moved in a predetermined direction, that is, obliquely from the corner C corresponding to the gripping portion H of the new sheet material 11 through the robot hand. Is moved laterally (in the directions of the arrows in FIGS. 18A and 18B), and the gripper H is pulled horizontally in the predetermined direction together with the spacer plate 41 to release the release sheet 12 of the new sheet material 11 entirely. (7). The spacer plate 41 can be recovered and reused after the release paper 12 is peeled off. Further, after the new sheet material 11 is laminated in this way, the same procedure may be repeated thereafter ((7), (1), (2)... (7)). However, when the final sheet material 11 having a predetermined number of layers is laminated, steps (3), (5), and (7) in FIG. 1 are omitted, and a laminate having release paper 12 on both the upper and lower sides is completed. (FIG. 2B).

  In the above description, the sheet material 11 is not limited to itself having tackiness (tackiness), and may be one in which an appropriate pressure-sensitive adhesive or pressure-sensitive adhesive is applied to the surface. Further, the release paper 12 may be a plastic material as well as a paper material.

  The present invention can be widely and suitably applied to uses such as stacking sheet materials with release paper to form a laminate.

C ... Corner B ... Predetermined range H ... Gripping part 11 ... Sheet material 12 ... Release paper 41 ... Spacer plate

Patent Applicant Giken Co., Ltd.

Claims (6)

Only the release paper side of one side of the sheet material, which is more rigid than the release paper, is sucked and held, and repeatedly hits the specified range including the corner of the sheet material from the release paper side via the hammering rod , On the sheet material, the sheet material is elastically bent from the release paper side to the sheet material side each time it is added, thereby separating a part of the release paper including corners from the sheet material to form a gripping portion. Forming a gripping part for peeling the release paper.   2. The method for forming a gripping portion for peeling release paper on a sheet material according to claim 1, wherein the positions separated by at least three times the vertical and horizontal widths of the predetermined range are adsorbed and held.   3. The method for forming a gripping portion for peeling release paper on a sheet material according to claim 1 or 2, wherein a predetermined range is struck several hundred times at a frequency of several tens of times / second. The release paper side of the sheet material with release paper is sucked and held, and a predetermined range including the corner of the sheet material is repeatedly hit from the release paper side to separate a part of the release paper including the corner from the sheet material. The release grip is formed on a part of the release paper on the new sheet material, the new sheet material is transferred onto the lower sheet material, and the spacer plate is attached to the release paper grip on the new sheet material. A sheet material laminating method characterized by sandwiching, laminating a new sheet material on a lower sheet material, peeling and removing the release paper on the new sheet material, and repeating the same procedure.   The sheet material stacking method according to claim 4, wherein the spacer plate is sandwiched by pulling up the grip portion while pressing a peripheral portion of the grip portion.   6. The sheet material laminating method according to claim 4, wherein the gripping portion is pulled up and gripped together with the spacer plate, and the release paper is peeled off by pulling the gripping portion.

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