JP2017218284A - Film peeling and winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film peeling and winding method which is utilized as means for peeling a polarization plate film adhered to a surface of a glass substrate without generation of a slit in a side.SOLUTION: A film peeling and winding device comprising a film winding roller 11 which is horizontally supported at a constant height above a horizontal surface for supporting a plate material and is capable of rotating around an axis and traversing in a horizontal direction orthogonal to the axis, in which the roller 11 is provided with film holding means 16 at an intermediate position in a lengthwise direction thereof. A raised portion 30 along a circumferential direction of the roller 11 is provided in at least a circumferential direction constant length region of a film winding circumferential surface of the roller 11 which is adjacent to a rotation direction upstream side of the roller 11 with respect to a film holding part 29 of the film holding means 16. A width of the raised portion 30 is wider than a holding width of a corner part tip Fac of a film F by the film holding part 29.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a film peeling and winding apparatus that can be used when peeling and removing a film attached to the surface of various plate materials.

  In the liquid crystal display panel, a polarizing film is attached to the surface of the glass substrate to be used via an adhesive layer. In this polarizing film attaching process, foreign substances and bubbles are present between the glass substrate and the polarizing film. May get mixed in. In such a case, the polarizing film is peeled off from the glass substrate, and the glass substrate is reused. Of course, it is not limited to peeling and removing the polarizing film from the glass substrate. For example, when the protective film stuck on the printing plate is peeled off after exposure, or the photosensitive film stuck on the printed board is peeled off after exposure. There are many opportunities to peel and remove the film attached to the surface of the plate material including cases. In such a situation, not all of the film is peeled and removed manually, but at least one corner of the film is mechanically peeled and removed after being peeled from the plate surface. Various technical proposals have been made.

  For example, the film peeling and winding device described in Patent Document 1 and Patent Document 2 (Patent Publication related to the applicant's application) is supported horizontally at a certain height above the horizontal plane for supporting the plate material and has an axial center. It is equipped with a film winding roller that can rotate around and rotate in the horizontal direction perpendicular to the axis, and this roller is provided with film clamping means at an intermediate position in the length direction along the axis It has been.

JP 2006-347756 A Japanese Patent Application Laid-Open No. 2006-11171

  In the film peeling and winding apparatus described in Patent Document 1 and Patent Document 2, one corner of the film on the film sticking plate material placed obliquely at a predetermined position on the plate material supporting horizontal surface is peeled from the plate material. Then, in a state where the corner portion is sandwiched by the film sandwiching means provided in the film winding roller, the roller is rotated in a predetermined direction while being laterally moved, whereby the film on the plate material is Since the film is peeled off from the plate material while being wound on the winding peripheral surface of the roller from the corner portion, the film of the triangular corner portion peeled off from the plate material at the start of film peeling and winding. Along with the rotation of the roller, a narrow triangular corner between the upper end clamped by the clamping means and the bottom equivalent lower end in contact with the triangular corner plate is provided. Large tensile force will act to concentrate. Since this tensile force acts on both sides of the triangular corner of the triangle without much attenuation, at the start of film peeling and winding, the lower ends of both sides of the triangular corner of the film It was found that the phenomenon of breaking from near occurred.

  The present invention proposes a film peeling and winding device that can solve the above-mentioned conventional problems, and the film peeling and winding device according to the present invention has a relationship with the embodiments described later. For ease of understanding, the reference numerals used in the description of the embodiment are shown in parentheses, and are supported horizontally at a fixed height above the horizontal plane for supporting the plate material and rotate around the axis and the axis. It is equipped with a film winding roller (11) capable of horizontal movement perpendicular to the center, and this roller (11) is provided with film clamping means (16) at an intermediate position in the length direction. In the film peeling and winding apparatus, the roller (11) has at least the film winding peripheral surface of the roller (11) with respect to the film clamping portion (29) of the film clamping means (16). Constant circumferential direction adjacent to the upper side of the rotation direction In the length region, a rising portion (30) is provided along the circumferential direction of the roller (11), and the width of the rising portion (30) is the width of the film (F) by the film sandwiching portion (29). It is wider than the clamping width of the corner tip (Fac).

  According to the configuration of the present invention, one corner of the film on the film sticking plate is peeled off from the plate, and the triangular corner is held by the film holding means provided in the film winding roller. In the state, in the first stage of rolling the roller while rotating in a predetermined direction, the lower end corresponding to the base that is in contact with the upper end portion sandwiched by the film sandwiching means and the triangular corner plate An intermediate portion having a width wider than the portion sandwiched by the film sandwiching means in the triangular region between the two portions is in pressure contact with the starting end of the rising portion on the film winding peripheral surface of the roller. Since the peeling and winding action is substantially started from the state, the tensile force acting on the triangular corner portion of the film pulled by the rotation and lateral movement of the roller is applied to the entire area in pressure contact with the rising portion. In distributed state, it acts on the triangular base corresponding to the lower end portion of the film. Accordingly, since the tensile force acting on the both sides of the triangular shape of the film is smaller than in the case where the swelled portion does not exist, the lower end of the both sides of the triangular shape of the film (location in contact with the plate material) ) Will not break. As a result, at the start of film peeling and winding, the triangular corners sandwiched by the film clamping means of the roller break and separate from the film before peeling on the plate material, and then the film is peeled and wound up. Even if the film is not cut or completely broken and separated, the risk of problems such as the film not being able to be reused normally due to the film being cut off is eliminated.

  When practicing the present invention, the raised portion (30) may be a flat shape having a substantially constant thickness over the entire width, but the cross section along the axial direction of the roller (11). It is desirable that the shape be curved in an arc shape. According to this configuration, the effect of dispersing the tensile force acting on the triangular corners of the film in the width direction of the triangular corners is enhanced by the raised portion, and the expected effect is ensured. I can expect.

  Further, as described in Patent Document 2, the film clamping means (16) is disposed on the inner side of the opening (17) provided on the peripheral surface of the film winding roller (11). 11) is constituted by a fixed receiving seat (18) and an opening / closing clamping piece (19) arranged adjacent to each other in the circumferential direction and closing the opening (17), and the opening / closing clamping piece (19) In a state where the tip end portion (19a) covers the fixed receiving seat (18), the tip end portion (19a) is pivotally supported around an axis parallel to the axis of the roller (11), and is also provided with a clamping drive means (27 ) Is opened / closed and the opening (Fac) of the corner of the film inserted between the front end (19a) of the open / close holding piece (19) and the fixed receiving seat (18) is connected to the open / close holding piece (19 ), The raised portion (30) is configured to be clamped between the tip end portion (19a) of the open / close clamping piece (19) and the fixed receiving seat (18). The opening / closing clamping piece (19) It can be provided on the outer surface. Of course, the swelled portion (30) is not only on the outer surface of the open / close sandwich piece (19), but also on the outer surface of the open / close sandwich piece (19) and the circumferential surface of the roller (11). It can also be provided so as to be continuous.

  Further, the raised portion (30) is integrally formed on the outer surface of the belt-like base material (31) wider than the width of the raised portion (30), and the belt-like base material (31) is film-wrapped. By adopting a configuration in which the film is wound around the film winding surface of the take-up roller (11), the present invention can be carried out easily and inexpensively.

FIG. 1 is a plan view of the entire facility. FIG. 2 is a partially cutaway front view of the equipment. FIG. 3 is a partially cut-away plan view showing the film winding roller and its both end support portions. FIG. 4 is a partially cutaway front view showing the film winding roller and its both-end support portions. FIG. 5 is a cross-sectional plan view of the film winding roller at the film clamping means position. FIG. 6A is a partially cutaway front view showing the main part of the film winding roller when the film clamping means is in the preparatory stage before film clamping, and FIG. 6B is a longitudinal side view of the main part. 7A is a schematic side view of the main part showing the first stage of the film peeling and winding process, and FIG. 7B is an enlarged view of the main part of FIG. 7A. 8A is a schematic side view of the main part showing the second stage of the film peeling and winding process, and FIG. 8B is an enlarged view of the main part of FIG. 8A. 9A is a front view of the main part at the stage shown in FIG. 8A, and FIG. 9B is a front view of the main part for explaining the conventional situation at the stage shown in FIG. 8A. FIG. 10A is a schematic side view of the main part showing the third stage of the film peeling winding process, and FIG. 10B is a schematic side view of the main part showing the fourth stage of the film peeling winding process. FIG. 11 is a plan view of the main part in a state where the third stage of the film peeling and winding process shown in FIG. 10A has advanced a little.

  In FIG. 1 and FIG. 2, reference numeral 1 denotes a horizontal base provided with a plate support horizontal surface for supporting a rectangular plate (such as a glass substrate) P, and is laid on the mount 2. 3, a horizontal upper level of the horizontal support 1 for the plate material support of the horizontal base 1 is set horizontally between a lateral movement start position S on the front end side of the horizontal base 1 and a lateral movement end position E on the rear end side of the horizontal base 1. It is a laterally movable body that can reciprocate freely. Reference numeral 4 denotes a film corner peeling device provided on the outer side of the front end of the horizontal substrate 1, and reference numeral 5 denotes a winding film collecting device provided on the outer side of the rear end of the horizontal substrate 1.

  The laterally movable body 3 is provided with support bases 8 and 9 supported by slide support means 6 and 7 attached in parallel to each other on both the left and right sides of the horizontal base 1, and slides on one side. The lateral support driving means 10 is arranged in parallel on the support means 7. A film winding roller 11 is rotatably supported between the support bases 8 and 9 at both ends of the lateral moving body 3 in a horizontal direction perpendicular to the moving direction of the lateral moving body 3, and the film winding roller. A motor 13 linked to one end of 11 and a rotary joint 12 is attached to the support base 9 on one side. The lateral movement drive means 10 includes a screw shaft (not shown), a motor (not shown) linked to one end of the screw shaft to drive the screw shaft forward and reverse, and the screw shaft. And a female screw body (not shown) that is screwed onto the horizontal movement body 3. The female screw body is attached to the lateral movement body 3, and the lateral movement body 3 moves along the screw axis via the female screw body by the rotation of the screw shaft. To do.

  The outline of the internal structure of the film winding roller 11 will be described with reference to FIGS. 3 to 6B. In the cylindrical roller body 14 constituting the film winding roller 11, the axis of the cylindrical roller body 14 is provided. An angle member 15 parallel to the center direction is fixedly furnished. A film clamping means 16 is attached to the central portion of the angle member 15 in the length direction. The film clamping means 16 has a fixed receiving seat 18 and an opening / closing clamping piece 19 disposed inside the cylindrical roller body 14 and an opening / closing piece so as to close an opening 17 provided on the peripheral wall of the cylindrical roller body 14. The movable body 20 for operation which operates the clamping piece 19 is comprised. The fixed receiving seat 18 is composed of a cylindrical shaft body having a diameter of about 1/3 of the diameter of the cylindrical roller body 14, and a pair of supports whose axial center positions at both ends are attached to the inside of the angle member 15. The plates 21 a and 21 b are screwed so as to be rotatable and fixed, and their circumferential surfaces are arranged so as to contact the virtual outer circumferential surface of the cylindrical roller body 14. The open / close clamping piece 19 is supported between the pair of support plates 21a, 21b so as to be swingable around a support shaft 22 installed in parallel with the axial center of the cylindrical roller body 14, and the support shaft 22 is supported. And the axis of the fixed receiving seat 18 are located at substantially the same distance from the axis of the cylindrical roller body 14. When the open / close clamping piece 19 is in a closed position where the inner recessed arc surface of the tip end portion 19a is in contact with the circumferential surface of the fixed receiving seat 18, the entire outer surface of the opening / closing clamping piece 19 is in the circumferential direction 1 of the cylindrical roller body 14. It is formed on a projecting circular arc surface that substantially coincides with the virtual outer peripheral surface of the region of about / 4.

  The operation movable body 20 is fitted in a guide groove formed by cutting the pair of support plates 21a and 21b, and is supported so as to be movable within a certain range in the axial direction of the cylindrical roller body 14. The movable body 20 for operation is provided with a cam hole 23 so as to be positioned between the pair of support plates 21a and 21b. The cam hole 23 and the tip end portion 39a of the opening / closing clamping piece 19 are connected to the support shaft 22. On the other hand, a pin-shaped cam driven piece 24 protruding from the inner surface on the opposite side is fitted. The shape of the cam hole 23 is formed so that the opening / closing pinching piece 19 opens and closes as will be described later as the operation movable body 20 reciprocates.

  The operation movable body 20, the cam hole 23, and the cam follower 24 include a push / pull drive actuator 25 such as an electromagnetic cylinder, and a push / pull that connects the push / pull drive actuator 25 and the operation movable body 20. Together with the shaft body 26, a clamping drive means 27 for the open / close clamping piece 19 is constituted. The push / pull drive actuator 25 is attached to the outside of the support base 8 on one side that supports the laterally movable body 3, and the push / pull drive shaft 26 and the push / pull shaft body 26 of the push / pull drive actuator 26 are both connected. They are concentrically connected via a push / pull transmission 28 that allows relative rotation about the axis.

  According to the configuration of the film clamping means 16 and the clamping drive means 27 configured as described above, the operation movable body 20 is pushed to the pushing limit position by the push / pull drive actuator 25 via the push / pull shaft body 26 (FIG. 5), the cam follower 24 on the side of the opening / closing pinching piece 19 is pushed up by the cam hole 23 of the operation movable body 20, the opening / closing pinching piece 19 is around the support shaft 22, and the tip 19a is the fixed receiving seat 18. It swings in the direction approaching the peripheral surface, and finally, the end 19a of the open / close clamping piece 19 is in a closed state in contact with the peripheral surface of the fixed receiving seat 18. Further, in the state where the operating movable body 20 is pulled to the limit position by the push / pull drive actuator 25 via the push / pull shaft body 26, as shown in FIGS. The piece 24 is pushed down by the cam hole 23 of the operation movable body 20, and the opening / closing clamping piece 19 swings around the support shaft 22 and the tip end portion 19 a away from the fixed receiving seat 18. The tip 19a of the piece 19 is in an open state separated from the peripheral surface of the fixed receiving seat 18 by a predetermined distance.

  The film take-up roller 11 having the above-described configuration has a position in the axial direction in which the film holding portion 29 formed by the fixed receiving seat 18 of the film holding means 16 and the tip end portion 19a of the opening / closing holding piece 19 is provided. In FIG. 3, the swelled portion 30 is provided along the circumferential direction. The swelled portion 30 projects in a circular arc shape with a cross-sectional shape along the axial direction of the film winding roller 11, and is wider than the axial width of the film winding roller 11. A wide belt-like base material 31 protrudes from the center of the outer surface. The belt-like base material 31 and the raised portion 30 are integrally formed of a synthetic resin such as urethane resin or silicon resin, and the outer peripheral surface of the cylindrical roller body 14 and the cylindrical roller of the open / close clamping piece 19. It is divided and affixed so as to be continuous in the circumferential direction on the arcuate outer surface of the open / close clamping piece 19 that closes the opening 17 of the main body 14. The swelled portion 30 attached to the arc-shaped outer surface of the open / close clamping piece 19 via the belt-like base material 31 has an end portion on the distal end portion 19a side of the open / close holding piece 19 as shown in each drawing. The opening / closing clamping piece 19 is cut obliquely so that the angle with the inner surface of the tip 19a is an acute angle.

  Hereinafter, the method of using the entire facility will be described. As shown in FIG. 1, a film (polarizing film or the like) is formed on the surface of the horizontal moving body 3 at a predetermined position in a state where the horizontal moving body 3 is in the horizontal movement starting position S. A rectangular plate material (glass substrate or the like) P to which F is attached is placed obliquely. At this time, regardless of the size of the plate material P, a guide member G for determining the direction and the position of one corner of the film peeling start target is provided at a predetermined position on the horizontal base 1. One corner of the sheet P (film F) placed on the horizontal base 1 at a predetermined position is a film winding roller 11 when the lateral moving body 3 is at the lateral movement start position S. The film sandwiching portion 29 is located directly below the certain position. On the other hand, as shown in FIG. 7A, the film winding roller 11 when the laterally moving body 3 is in the lateral movement start position S has the film clamping portion 29 positioned directly below the axis of the film winding roller 29. At the same time, the opening / closing pinching piece 19 is located on the opposite side of the side where the lateral movement end position E is located with respect to the fixed receiving seat 18 constituting the film holding portion 29 and the tip of the opening / closing holding piece 19 with respect to the fixed receiving seat 18. The part 19a is in an open state apart.

  After the preparation state is completed, the film corner peeling device 4 is operated, and as shown in FIG. 7A, the tip Fac of one corner Fa of the film F on the plate material P is moved to the film corner peeling device 4. The peeling blade 4b at the tip of the scraper 4a that moves forward is peeled off from the surface of the plate material P. As a result, the tip Fac of one corner Fa of the film F peeled off from the surface of the plate P is the tip of the opening / closing sandwiching piece 19 in the film sandwiching portion 29 of the film winding roller 11 as shown in FIG. 7A. It abuts on the peripheral surface of the fixed receiving seat 18 at a position immediately before the portion 19a. In other words, the positioning of the plate material P on the horizontal base 1, the lateral movement start position S of the film winding roller 11, and the initial posture of the film winding roller 11 are set so as to be in such a state. Will be. Next, the push / pull drive actuator 25 is operated, and the open / close clamping piece 19 is closed to the closed state as described above. As a result, as shown in FIG. 7B, the leading end 19a of the opening / closing clamping piece 19 clamps the leading end Fac of one corner Fa of the peeled film F with the peripheral surface of the fixed receiving seat 18. become. Thereafter, the scraper 4a of the film corner peeling device 4 returns to the standby position.

  As described above, the tip Fac of the corner portion Fa of the film F that is peeled off from the surface of the plate material P and stands up obliquely backward is between the tip portion 19a of the opening / closing clamping piece 19 and the fixed receiving seat 18 in the same posture. Next, the lateral movement driving means 10 and the motor 13 for rotational driving of the film winding roller 11 are operated, and the lateral movement body 3, that is, the film winding roller 11 is moved to the lateral movement start position. While starting the lateral movement from S to the lateral movement end position E, the film winding roller 11 is rotated. The rotation direction of the film winding roller 11 at this time is such that the film sandwiching portion 29 located at the position directly below the axis of the film winding roller 11 is laterally moved by the laterally movable body 3 (film winding roller 11). It is a direction to move in the direction. Then, the rotation of the lateral movement drive means 8 and the film winding roller 11 is made so that the lateral movement speed of the lateral movement body 3 (film winding roller 11) and the rotational peripheral speed of the film winding roller 11 are substantially equal. 8A, the lateral movement distance L1 of the laterally movable body 3 (film winding roller 11) from the lateral movement start position S and the rotating film winding roller are controlled. 11 is made substantially equal to the winding length L2 for winding the film F on its peripheral surface.

  As a result of the above control, as shown in FIG. 7A, one corner portion Fa of the film F that has been peeled up from the surface of the plate material P and stood diagonally rearward is shown in FIG. 8A. 11 is pulled obliquely forward from the surface of the plate material P via the front end Fac sandwiched by the film sandwiching portion 29 included in the film 11, and the peripheral surface of the film winding roller 11 (outside of the projecting arc shape of the opening / closing sandwiching piece 19). The side is wound up. After this state, the lateral movement distance L1 of the laterally movable body 3 (film winding roller 11) and the winding length at which the rotating film winding roller 11 winds the film F on its peripheral surface as described above. Since L2 is substantially equal, as shown in FIGS. 10A and 10B, the lateral movement distance L1 of the laterally movable body 3 (film winding roller 11) and the film winding length L2 of the film winding roller 11 are increased. Even so, from the relationship of L1 = L2, the length and angle of the film pulling area FA obliquely forward from the surface of the plate P to the peripheral surface of the film winding roller 11 are substantially constant. FIG. 11 shows, in plan view, a state in which the rotation of the film winding roller 11 has advanced by approximately 90 degrees from the state shown in FIG. 10A.

  As shown in FIG. 8A, immediately after the start of winding of the film F, as shown in FIG. 8A, the corners of the film F held by the film holding portion 29 (the fixed receiving seat 18 and the front end portion 19a of the opening / closing holding piece 19) of the film holding means 16 are used. The front end Fac of the portion Fa is bent in the opposite direction with respect to the corner portion Fa of the film F that is peeled off from the surface of the plate material P and pulled diagonally forward and upward between the front end Fac and the surface of the plate material P. Will be. Therefore, there is almost no possibility that the tip Fac of the corner portion Fa of the film F is pulled out from the film sandwiching portion 29 due to the tension acting on the corner portion Fa of the film F in this state. Then, after the film winding roller 11 has made one rotation from the state shown in FIG. 8A, the film F is wound on the corner Fa of the film F as shown in FIG. There is no possibility that the front end Fac of Fa is pulled out from the film clamping portion 29.

  As described above, the film F adhered to the surface of the plate material P is wound around the film winding roller 11 while being peeled off from the surface of the plate material P by the rotation and lateral movement of the film winding roller 11. In this case, the swelled portion 30 provided on the film winding roller 11 functions as follows. That is, when winding of the film F by the film winding roller 11 is started, the tip Fac is peeled off from the surface of the plate material P with the front end Fac being sandwiched by the film sandwiching portion 29 of the film winding roller 11 and obliquely upward The corner Fa of the film F that is pulled to the front is a triangular shape as shown in FIG. 9A when viewed from the front side of the film winding roller 11, but when there is no rising portion 30, the corner portion Fa of FIG. As shown by the line, the triangular corner Fa extends linearly from the tip 19a of the opening / closing pinching piece 19 to the surface of the plate member P in a tangential direction to the outer surface of the opening / closing pinching piece 19, As a result, as shown in FIG. 9B, the narrow width between the narrow tip Fac sandwiched by the film sandwiching portion 29 and the portion corresponding to the bottom of the triangular corner Fa of the film F is narrow. Since a large tensile force to concentrate on the tip Fac acts, the tensile force becomes large also acts on the inclined sides of the triangular shaped corner Fa. As a result, a notch C is formed from the both sides of the oblique side of the film F at a portion corresponding to the bottom of the triangular corner Fa, and the triangular corner Fa is left on the plate material P side by the notch C. The film F is wound on the film winding roller 11 in a state where the film F is broken and separated or the cut C is generated.

  On the other hand, according to the film winding roller 11 of the present invention provided with the rising portion 30, the triangular corner portion Fa is once raised from the tip portion 19a of the opening / closing clamping piece 19 as shown in FIG. 8B. 30, and bends from the edge of the raised portion 30 to reach the surface of the plate material P. Accordingly, in a front view as viewed from the front side of the film winding roller 11, as shown in FIG. 9A, the arc of the rising portion 30 is located at an intermediate position near the tip Fac of the triangular corner Fa of the film F. The edge of the shape is pressed from the inside. As a result, the tensile force acting on the triangular corner Fa of the film F that is pulled toward the film winding roller 11 by receiving the rotational force of the film winding roller 11 is sandwiched by the film sandwiching portion 29. It will be dispersed in the width direction at the place where it presses against the arcuate edge of the raised portion 30 wider than the narrow tip Fac, and the edge of the wider raised portion 30 is the center. Since the portion has an arcuate shape, the tensile force is greatest at the central portion in the width direction of the triangular corner portion Fa, and decreases as it approaches both oblique sides. That is, even if the force that pulls the triangular corner Fa of the film F toward the film take-up roller 11 is the same, the presence of the raised portion 30 causes both oblique sides of the triangular corner Fa to exist. As a result, the tensile force acting on the surface becomes smaller, and the risk of notching C as described with reference to FIG. 9B is suppressed.

  When the film winding roller 11 (the laterally movable body 3) for winding the film F peeled off from the plate material P reaches the lateral movement end position E by the rotation and lateral movement of the film winding roller 11, the lateral movement driving means 10 and the rotation driving motor 13 of the film winding roller 11 are automatically stopped, and the rotation and lateral movement of the film winding roller 11 are completed. In the equipment shown in FIG. 1, the take-up film collecting device 5 is provided adjacent to the laterally moving body 3 that has reached the lateral movement end position E, so that the film winding of the laterally movable body 3 that has reached the lateral movement end position E is performed. The film F being wound up can be mechanically and automatically removed from the take-up roller 11 and recovered. However, the film corner peeling device 4 and the take-up film collecting device 5 are not essential to the present invention and can be omitted.

  The swelled portion 30 is provided only in the circumferential region of a certain length from the tip 19a in the outer side surface of the opening / closing pinching piece 19, or only in the entire circumferential direction of the outer side surface of the opening / closing pinching piece 19, There may be an embodiment that is not provided on the outer peripheral surface of the cylindrical roller body 14. However, as in the above embodiment, the gap between the rear end of the outer surface of the open / close clamping piece 19 (the end opposite to the side having the tip 19a) and the outer peripheral surface of the cylindrical roller body 14 adjacent thereto. In addition, it is desirable to provide the swelled portion 30 at a position that is continuous in the circumferential direction in a state where it is divided at a location where the fixed seat 18 is located. According to this structure, until the film winding roller 11 makes one rotation, the swelled portion is also applied to the film tension area FA formed between the film winding roller 11 and the plate material P. 30 functions in the same way, the tensile force acting on both sides of the film tension area FA is weakened, and the risk of notching C on both sides of the film tension area FA can be suppressed.

  The film peeling and winding device of the present invention can be used as a means for peeling off a polarizing plate film attached to the surface of a glass substrate from the glass substrate for reuse of the glass substrate, for example.

DESCRIPTION OF SYMBOLS 1 Horizontal base | substrate 3 Horizontal moving body 4 Film corner | angular part peeling apparatus 5 Winding film collection | recovery apparatus 6,7 Support means for slides 8,9 Supporting base part 10 Driving means for lateral movement 11 Roller for film winding 14 Cylindrical roller main body 15 Angle material DESCRIPTION OF SYMBOLS 16 Film clamping means 17 Opening part of cylindrical roller body 18 Fixed receiving seat 19 Opening / closing clamping piece 20 Operating movable body 23 Cam hole 24 Cam driven piece 25 Push-pull drive actuator 26 Push-pull shaft body 27 Nipping drive means 28 Push-pull transmission tool 29 Film clamping part 30 Swelling part 31 Band-shaped base material S Lateral movement start position E Lateral movement end position P Plate material F Film FA Film tension area Fa Triangular film corner Fac Tip of triangular film corner

The present invention proposes a film peeling and winding device that can solve the above-mentioned conventional problems, and the film peeling and winding device according to the present invention has a relationship with the embodiments described later. For ease of understanding, the reference numerals used in the description of the embodiment are shown in parentheses, and are supported horizontally at a fixed height above the horizontal plane for supporting the plate material and rotate around the axis and the axis. It is equipped with a film winding roller (11) capable of horizontal movement perpendicular to the center, and this roller (11) is provided with film clamping means (16) at an intermediate position in the length direction. In the film peeling and winding apparatus, the roller (11) has at least the film winding peripheral surface of the roller (11) with respect to the film clamping portion (29) of the film clamping means (16). Constant circumferential direction adjacent to the upper side of the rotation direction In the length region, a rising portion (30) is provided along the circumferential direction of the roller (11), and the width of the rising portion (30) is the width of the film (F) by the film sandwiching portion (29). It is wider than the clamping width of the corner tip (Fac).

The operation movable body 20 is fitted in a guide groove formed by cutting the pair of support plates 21a and 21b, and is supported so as to be movable within a certain range in the axial direction of the cylindrical roller body 14. The movable body for operation 20 is provided with a cam hole 23 so as to be positioned between the pair of support plates 21a and 21b. The cam hole 23 is connected to the tip end portion 19a of the opening / closing clamping piece 19 on the support shaft 22. On the other hand, a pin-shaped cam driven piece 24 protruding from the inner surface on the opposite side is fitted. The shape of the cam hole 23 is formed so that the opening / closing pinching piece 19 opens and closes as will be described later as the operation movable body 20 reciprocates.

The operation movable body 20, the cam hole 23, and the cam follower 24 include a push / pull drive actuator 25 such as an electromagnetic cylinder, and a push / pull that connects the push / pull drive actuator 25 and the operation movable body 20. Together with the shaft body 26, a clamping drive means 27 for the open / close clamping piece 19 is constituted. The push / pull drive actuator 25 is attached to the outside of the support base 8 on one side that supports the laterally movable body 3, and the push / pull drive shaft 25 and the push / pull shaft body 26 of the push / pull drive actuator 25 are both connected. They are concentrically connected via a push / pull transmission 28 that allows relative rotation about the axis.

The film take-up roller 11 having the above-described configuration has a position in the axial direction in which the film holding portion 29 formed by the fixed receiving seat 18 of the film holding means 16 and the tip end portion 19a of the opening / closing holding piece 19 is provided. In FIG. 3, the swelled portion 30 is provided along the circumferential direction. The swelled portion 30 projects in a circular arc shape with a cross-sectional shape along the axial direction of the film winding roller 11, and is wider than the axial width of the film winding roller 11. A wide belt-like base material 31 protrudes from the center of the outer surface. The belt-like base material 31 and the swelled portion 30 are integrally formed of a synthetic resin such as urethane resin or silicon resin, and the outer peripheral surface of the cylindrical roller body 14 and the opening of the cylindrical roller body 14. Attached to the arc-shaped outer side surface of the open / close clamping piece 19 that closes 17 is divided and pasted so as to be continuous in the circumferential direction. The swelled portion 30 attached to the arc-shaped outer surface of the open / close clamping piece 19 via the belt-like base material 31 has an end portion on the distal end portion 19a side of the open / close holding piece 19 as shown in each drawing. The opening / closing clamping piece 19 is cut obliquely so that the angle with the inner surface of the tip 19a is an acute angle.

Hereinafter, the method of using the entire facility will be described. As shown in FIG. 1, a film (polarizing film or the like) is formed on the surface of the horizontal moving body 3 at a predetermined position in a state where the horizontal moving body 3 is in the horizontal movement starting position S. A rectangular plate material (glass substrate or the like) P to which F is attached is placed obliquely. At this time, regardless of the size of the plate material P, a guide member G for determining the direction and the position of one corner of the film peeling start target is provided at a predetermined position on the horizontal base 1. One corner of the sheet P (film F) placed on the horizontal base 1 at a predetermined position is a film winding roller 11 when the lateral moving body 3 is at the lateral movement start position S. The film sandwiching portion 29 is located directly below the certain position. On the other hand, in the film winding roller 11 when the laterally moving body 3 is in the lateral movement start position S, as shown in FIG. 7A, the film sandwiching portion 29 is positioned directly below the axis of the film winding roller 11. At the same time, the opening / closing pinching piece 19 is located on the opposite side of the side where the lateral movement end position E is located with respect to the fixed receiving seat 18 constituting the film holding portion 29 and the tip of the opening / closing holding piece 19 with respect to the fixed receiving seat 18. The part 19a is in an open state apart.

As described above, affixed to the film F on the surface of the sheet P is the rotation and traverses the film winding roller 11, is wound into the film take-up roller 11 while being peeled off from the surface of the sheet P In this case, the swelled portion 30 provided on the film winding roller 11 functions as follows. That is, when winding of the film F by the film winding roller 11 is started, the tip Fac is peeled off from the surface of the plate material P with the front end Fac being sandwiched by the film sandwiching portion 29 of the film winding roller 11 and obliquely upward The corner Fa of the film F that is pulled to the front is a triangular shape as shown in FIG. 9A when viewed from the front side of the film winding roller 11, but when there is no rising portion 30, the corner portion Fa of FIG. As shown by the line, the triangular corner Fa extends linearly from the tip 19a of the opening / closing pinching piece 19 to the surface of the plate member P in a tangential direction to the outer surface of the opening / closing pinching piece 19, As a result, as shown in FIG. 9B, the narrow width between the narrow tip Fac sandwiched by the film sandwiching portion 29 and the portion corresponding to the bottom of the triangular corner Fa of the film F is narrow. Since a large tensile force to concentrate on the tip Fac acts, the tensile force becomes large also acts on the inclined sides of the triangular shaped corner Fa. As a result, a notch C is formed from the both sides of the oblique side of the film F at a portion corresponding to the bottom of the triangular corner Fa, and the triangular corner Fa is left on the plate material P side by the notch C. The film F is wound on the film winding roller 11 in a state where the film F is broken and separated or the cut C is generated.

Claims (5)

  A roller for film winding, which is horizontally supported at a fixed height above the horizontal surface for supporting the plate material and is capable of rotating around the axis and laterally moving in a direction perpendicular to the axis, In the film peeling winding device provided with a film clamping means for clamping one corner of the film peeled off from the plate material at an intermediate position in the length direction, the roller is provided with the film winding peripheral surface. Among them, at least in the circumferential constant length region adjacent to the upper side of the rotation direction of the roller with respect to the film clamping portion of the film clamping means, a rising portion is provided along the circumferential direction of the roller. The film peeling and winding device, wherein the width of the swelled portion is wider than the holding width at the tip of the corner of the film by the film holding portion.   The film peeling and winding device according to claim 1, wherein the swelled portion has a cross-sectional shape along the axial direction of the roller and a shape that curves in an arc shape.   The film clamping means is composed of a fixed receiving seat and an opening / closing clamping piece arranged adjacent to each other in the circumferential direction of the roller and closing the opening inside the opening provided on the circumferential surface of the roller. The opening / closing clamping piece is pivotally supported around an axis parallel to the axis of the roller in a state where a tip end portion thereof covers the fixed receiving seat, and is opened / closed by a clamping drive unit. The leading end of the film corner portion inserted between the leading end portion and the fixed receiving seat is moved by the closing movement of the opening / closing sandwiching piece, and the leading end portion of the opening / closing sandwiching piece and the fixed receiving seat The film peeling and winding device according to claim 1, wherein the rising portion is provided on an outer surface of the opening / closing clamping piece.   The film peeling and winding device according to claim 3, wherein the swelled portion is provided so as to be continuous in the circumferential direction across the outer surface of the open / close sandwich piece and the peripheral surface of the roller.   The swelled part is integrally formed on the outer surface of a belt-like base material wider than the width of the swelled part, and the belt-like base material is attached to the film winding peripheral surface of the roller. The film peeling and winding apparatus according to any one of 1 to 3.

Images