JP5031908B2 - Film peeling apparatus and film peeling method - Google Patents

Description

  The present invention relates to a film peeling apparatus and a film peeling method for peeling a film attached to a surface of a protected member that is a plate-like body.

  In recent years, in an electronic device production process or an electrical product assembly process, scratches, dust, dust, particles, and the like cause device defects or product quality degradation. For this reason, as a countermeasure, protective films are widely used to protect the surface or exterior of electronic devices or electrical products.

  For example, a polarizing plate is provided on the outermost surface of the liquid crystal panel. A liquid crystal panel in which the surface of the polarizing plate is scratched, or a liquid crystal panel in which the surface of the polarizing plate is soiled with dust, dust, particles or the like is treated as a defective product. For this reason, the protective film is affixed on the surface of the polarizing plate used as a to-be-protected member from the middle of manufacture of a polarizing plate. And the polarizing plate in the state where the protective film was affixed is affixed on a liquid crystal panel.

  However, since the protective film is unnecessary in the final product liquid crystal television, there is a step of peeling the protective film in the assembly process of the liquid crystal television.

  In order to peel the protective film from the polarizing plate, initial peeling for peeling off the end portion of the protective film and whole peeling for peeling the entire protective film after the initial peeling are performed.

  For example, the entire surface is peeled off by holding the protective film peeled off by the initial peeling with the gripping part and moving the gripping part or the polarizing plate relatively, or winding up the protective film peeled off by the initial peeling. Peel the entire protective film. In the initial peeling, a method in which an adhesive tape or the like is adhered to the surface of the protective film to indirectly peel off the protective film, or a method in which the protective film itself is directly peeled off by a scraper or a needle-like peeling member is used.

  As specific conventional film peeling methods, those disclosed in Patent Documents 1 to 3 are known.

  In the surface sheet material peeling method disclosed in Patent Document 1, as shown in FIGS. 15A, 15B and 15C, an adhesive tape is provided at one corner of the surface sheet material 102 disposed on the surface of the plate-like material 101. 103 is attached, and then the pressure-sensitive adhesive tape 103 is lifted, and the surface sheet material 102 is partially turned up and then peeled off in a diagonal direction.

  In the film peeling and cutting method disclosed in Patent Document 2, as shown in FIG. 16, an adhesive roller 201 inclined by θ from the film traveling direction is provided on the upper side of the film F having the cover film 202 on the surface. Then, the edge of the side of the cover film 202 in the direction perpendicular to the film traveling direction is adhered by the adhesive roller 201, and then the cover film 202 is pulled out by the adhesive roller 201 at an angle twice as large as θ with respect to the film traveling direction. .

  In the peeling method of the sheet-like material disclosed in Patent Document 3, as shown in FIGS. 17 (a), (b), and (c), a sheet shape adhered to the surface of a plurality of laminated plate-like bodies 301. By holding the vicinity of the edge of the object 302 by the holding means 303 and pulling it up, separation occurs between the layers of the edge of the sheet-like object 302 and the plate-like body 301 to form a gap 304. Next, as shown in FIGS. 17D, 17 </ b> E, and 17 </ b> F, the fluid 305 a is inserted into the gap 304 with the nozzle 305 in a state where the vicinity of the edge of the sheet-like object 302 is held at a predetermined interval from the plate-like body 301. The sheet 304 is blown and the gap 304 is developed in the plane direction between the layers, and the sheet-like object 302 that has been peeled off is separated from the holding means 303.

  Accordingly, when the sheet-like object 302 is peeled, the bending stress is prevented from acting over the entire sheet-like object 302 above the peeled surface, and the plate-like body 301 below the peeled surface has a sheet-like shape. Generation | occurrence | production of the bending stress to the plate-shaped body 301 located in the lower surface by the tensile stress of the thing 302 is suppressed.

Japanese Patent Laid-Open No. 5-319675 (released on December 3, 1993) JP 2000-351188 A (released on December 19, 2000) JP 2008-133102 A (released on June 12, 2008)

  However, in the method for peeling off the surface sheet material disclosed in the above-mentioned conventional Patent Document 1, it is necessary to move a distance twice the diagonal length of the panel as shown in FIG. There is a problem that the operation stroke of the peeling hand 104 becomes long.

  Further, in the film peeling and cutting method disclosed in Patent Document 2, as shown in FIG. 16, the peeled cover film 202 is pulled downward on the paper surface. This is because the initial peeling is the cover film 202 shown in FIG. This is possible after being done on the entire left side.

  However, initial peeling is easier at the corner and more difficult at the edge. Moreover, when initial peeling is performed at the corner, the film peeling and cutting method disclosed in Patent Document 2 cannot be used. In other words, in order to adopt this method, it is possible to peel off a considerable amount on the left side after initial peeling at the upper left corner, and then use this method.

  Further, when the peeled cover film 202 is taken sideways, the optimum θ is 45 degrees, and the take-up roll 203 and the proceeding cover film 202 are likely to collide with each other regardless of whether it becomes larger or smaller.

  Further, in the sheet-like material peeling method disclosed in Patent Document 3, as shown in FIGS. 17A to 17F, after the initial peeling, between the sheet-like material 302 and the plate-like body 301 is performed. The fluid 305a is blown into the film to cause peeling, but this method is difficult when the adhesive strength of the sheet-like object 302 is strong. Moreover, when it becomes large, it is necessary to blow in the fluid 305a with a very strong pressure. Furthermore, there is a problem that the peeled portion easily flutters and is dangerous.

  The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to avoid an increase in work space, to prevent an increase in the peel space in the film to be peeled, and to a large film as well. It is providing the film peeling apparatus and film peeling method which can peel reliably and easily.

  In order to solve the above problems, the film peeling apparatus of the present invention is a film peeling apparatus that peels a film from a plate-like body on which a film is attached, and is peeled off while gripping the end of the film. A full-surface peeling member that is inserted into the gap between the end of the film and the plate-like body and peels the film from the plate-like body while moving relative to the plate-like body, The extending direction is characterized in that it is inclined from a direction orthogonal to the relative movement direction of the entire surface peeling member.

  In order to solve the above problems, the film peeling method of the present invention is a film peeling method for peeling a film from a plate-like body to which a film is attached, and is peeled in a state where the end of the film is gripped. Including a whole surface peeling member for moving the whole surface peeling member inserted in the gap between the end portion of the film and the plate-like body relative to the plate-like body. The whole surface peeling member is inclined from a direction orthogonal to the relative movement direction.

  According to the above invention, the entire surface peeling member is inserted into the gap between the edge of the peeled film and the plate-like body while the edge of the film is gripped, and the whole surface peeling member is attached to the plate-like body. To move relative. At this time, the extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member.

  As a result, the film can be peeled so that one pair of two opposing sides of the square is parallel to the relative movement direction of the entire peeling member with respect to the plate having a square horizontal surface. .

  Therefore, since the film to be peeled does not protrude from the side of the plate-like body, an increase in work space can be avoided. Moreover, the film to be peeled is not drawn out to twice the length of the plate-like body. Furthermore, since only the entire surface peeling member is moved relative to the plate-like body, even a large film can be peeled reliably and easily.

  Therefore, it is possible to provide a film peeling apparatus and a film peeling method that can prevent an increase in the working space, prevent an increase in the peeling space in the film to be peeled, and reliably and easily peel off a large film. .

  In the film peeling apparatus of this invention, the said whole surface peeling member can be slidable with the said film. Note that “slidable” means not only the state in which the film and the surface of the peeling member slide, but also in this specification, a member such as a member made of an omni wheel or a member provided with an embedded ball and a film Including the state occurring between That is, it refers to a state in which the film can move in a direction unrelated to the movement direction of the member while the film receives a force from the member regardless of whether the film is in contact with the member or not.

  Thereby, the whole surface peeling member can peel a film from a plate-shaped object, moving relatively with respect to a plate-shaped body by sliding with a film.

  In the film peeling apparatus of this invention, the said whole surface peeling member can move relatively with respect to a plate-shaped object, contacting the said film.

  Thereby, the whole surface peeling member can peel a film from a plate-shaped object by sliding with a film.

  In the film peeling apparatus of the present invention, the horizontal surface of the plate-like body is a square, and one pair of two opposite sides of the square is parallel to the relative movement direction of the whole surface peeling member. Preferably it is.

  As a result, an increase in work space can be avoided reliably.

  In the film peeling apparatus of the present invention, it is preferable that an inclination angle between the extending direction of the whole surface peeling member and the direction perpendicular to the relative movement direction of the whole surface peeling member is greater than 0 degree and not more than 45 degrees. .

  That is, the inclination angle between the extending direction of the whole surface peeling member and the direction perpendicular to the relative movement direction of the whole surface peeling member is determined by the initial peeling direction at the corner of the film. Then, the closer the tilt angle is to 0 degrees, the shorter the time from the start of peeling to the completion of peeling.

  In the film peeling apparatus of the present invention, the entire surface peeling member is made of a rod-shaped member, and the direction of the film peeling interface with the plate-like body in the film and the extending direction of the entire surface peeling member made of the rod-shaped member are It is preferable that they are parallel to each other.

  Thereby, when the whole surface peeling member made of a rod-like member applies a force to the film so as to peel the film by sliding, abutting, air, etc., a load is uniformly applied to the film peeling interface. Therefore, the entire film can be appropriately peeled off.

  In the film peeling apparatus of the present invention, the rod-shaped member may be provided with a plurality of omni wheels that come into contact with the film. The omni wheel is a wheel that moves indefinitely.

  Thereby, when a some omni wheel contact | abuts to a film, it can be relatively moved to the direction which is not a rotation direction of a rod-shaped member. As a result, the entire surface peeling member made of a rod-like member can be moved relative to the plate-like body.

  In the film peeling apparatus of the present invention, the rod-shaped member may be provided with a plurality of embedded balls that are in contact with the film and exposed from the surface of the rod-shaped member.

  Thereby, when the rod-shaped member comes into contact with the film, the plurality of embedded balls come into contact with the film. For this reason, the whole surface peeling member can be moved relative to the plate-like body by the rotation of the ball with respect to the feeding of the film. Further, since the ball rotates freely, the rod-shaped member itself does not need to rotate. As a result, the entire surface peeling member made of a rod-like member can be moved relative to the plate-like body.

  In the film peeling apparatus of the present invention, the entire surface peeling member may be composed of a rod-shaped roller that can rotate about an axis and whose surface portion can move in a direction different from the axis.

  That is, when the entire surface peeling member is made of a bar-shaped roller, generally, the film can be moved only in the rotation direction of the bar-shaped roller when the bar-shaped roller contacts the adhesive surface of the film.

  However, if the bar-shaped roller is rotatable about the axis and the surface portion is movable in a direction different from the axis, the bar-shaped roller can be relatively moved in a direction other than the rotation direction of the bar-shaped roller. it can. As a specific example having such a structure, for example, a case where the rod-shaped roller is formed of a low friction and non-adhesive material such as a fluororesin, or a case where a fluororesin is coated is applicable. Alternatively, it may be possible to eject a fluid from a rod-shaped roller. This also reduces the friction between the rod-shaped roller and the film, so that the rod-shaped roller can be relatively moved in a direction other than the rotation direction of the rod-shaped roller.

  As described above, the film peeling apparatus of the present invention is inserted into the gap between the peeled film end and the plate-like body in a state of gripping the end of the film, and moves relative to the plate-like body. However, the whole surface peeling member for peeling the film from the plate-like body is provided, and the extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member. .

  In the film peeling method of the present invention, as described above, the entire surface peeling member inserted into the gap between the edge of the peeled film and the plate-like body is held with respect to the plate-like body while the edge of the film is gripped. And the entire surface peeling step is a method in which the extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member.

  Therefore, the effect of providing a film peeling apparatus and a film peeling method that avoids an increase in work space, prevents an increase in the peeling space in a film to be peeled, and can reliably and easily peel off a large film. Play.

(A) shows one Embodiment of the film peeling apparatus in this invention, Comprising: It is a top view which shows the structure of a film peeling apparatus, (b) is a perspective view which shows the structure of a film peeling apparatus, (C) is a perspective view which shows the structure of the one omni wheel attached to the peeling roller. It is a disassembled perspective view which shows the structure of the liquid crystal module provided with the film peeled with the said film peeling apparatus. It is sectional drawing which shows the structure of the liquid crystal panel in the said liquid crystal module. It is a perspective view which shows the assembly process of the said liquid crystal module. It is a top view which shows the manufacturing process of the liquid crystal television using the said film peeling apparatus. (A) is a top view which shows the moving direction of a liquid crystal panel and a whole surface peeling member, and the extending direction of a whole surface peeling member, (b) is a top view which shows a film peeling interface. It is a top view which shows the inclination angle from the direction orthogonal to the conveyance direction of a liquid crystal panel in the whole surface peeling member of a film peeling apparatus. It is a perspective view which shows the modification in the whole surface peeling member of a film peeling apparatus, Comprising: It is a perspective view which shows the structure of the whole surface peeling member provided with the omni wheel connected with the skewering. It is a perspective view which shows the other modification in the whole surface peeling member of a film peeling apparatus, Comprising: It is a perspective view which shows the structure of the whole surface peeling member provided with the some ball exposed on the surface. It is a perspective view which shows the other modification in the whole surface peeling member of a film peeling apparatus, Comprising: It is a perspective view which shows the structure of the whole surface peeling member which consists of a low friction roll. It is a perspective view which shows the other modification in the whole surface peeling member of a film peeling apparatus, Comprising: It is a perspective view which shows the structure of the whole surface peeling member which ejects a fluid. (A)-(f) is a figure which shows the film peeling process in the said film peeling apparatus. (A) is a top view which shows the film peeling apparatus of a comparative example, (b) is a front view which shows the film peeling apparatus of this comparative example, (c) is a perspective view which shows initial stage peeling. It is a top view which shows the relationship between the supply conveyor and liquid crystal panel in the film peeling apparatus of the said comparative example. (A) (b) (c) is a perspective view which shows the peeling process in the conventional film peeling apparatus. It is a top view which shows the structure of the other conventional film peeling apparatus. It is a side view which shows the peeling process in the conventional further another film peeling apparatus.

  An embodiment of the present invention will be described below with reference to FIGS.

  In this embodiment, as an example, film peeling for peeling off a protective film attached to protect a polarizing plate provided on the front and back surfaces of a liquid crystal panel in a liquid crystal module used in a liquid crystal television as a final product. The apparatus and the film peeling method will be described.

  First, a configuration of a liquid crystal module in a liquid crystal television as a final product will be described with reference to FIGS. 2 is an exploded perspective view showing the configuration of the liquid crystal module, and FIG. 3 is a cross-sectional view showing the configuration of the liquid crystal panel.

  As shown in FIG. 2, the liquid crystal module 1 includes, in order from the bottom, a backlight (B / L) chassis 3, a panel guide, an LED substrate 5, a diffusion plate 6, and an optical sheet on which a reflection sheet and support pins 2 are placed. 7, a liquid crystal panel chassis 8, a liquid crystal panel 10 having a polarizing plate on the front and back surfaces, and a bezel 9 are provided.

  The reflection sheet / support pin 2 includes a reflection sheet and a support pin for fixing the LED substrate 5. Further, the liquid crystal panel chassis 8 is composed of divided molded products. Further, the reflection sheet / support pin 2 and the bezel 9 are made of a sheet metal assembly.

  Further, as shown in FIG. 3, the liquid crystal panel 10 has a rectangular shape or the like, and a TFT substrate 11 and a color filter substrate 12 are attached to each other. A liquid crystal material (not shown) is injected between them. Polarizing plates 13 and 13 are attached to the surface of the TFT substrate 11 and the surface of the color filter substrate 12, respectively. The liquid crystal panel 10 is attached with a drive IC, a signal input circuit board, etc., not shown. The liquid crystal panel 10 and the polarizing plates 13 and 13 function as a plate-like body of the present invention.

  The areas of the polarizing plates 13 and 13 are larger than the display area (video display area) of the liquid crystal panel 10 and smaller than the surface area of the TFT substrate 11 or the color filter substrate 12. Protective films 14 and 14 as films for preventing damage and contamination of the polarizing plates 13 and 13 are attached to the respective surfaces of the polarizing plates 13 and 13 by an adhesive.

  The protective films 14 and 14 are affixed during the production of the polarizing plates 13 and 13. Then, it is cut larger than a predetermined size, and the end surface is polished to a predetermined size and manufactured. For this reason, the magnitude | size (surface area) of the polarizing plates 13 and 13 and the magnitude | size (surface area) of the protective films 14 and 14 are substantially equivalent. That is, in the present embodiment, the side surfaces of the polarizing plates 13 and 13 and the side surfaces of the protective films 14 and 14 are flush with each other.

  In addition, the adhesive which sticks the polarizing plates 13 and 13 to the TFT substrate 11 or the color filter substrate 12 has good adhesiveness with the glass surface formed on the surface of each substrate. For this reason, compared with the adhesive force between the polarizing plates 13 and 13 and the protective films 14 and 14, the adhesive force between the polarizing plates 13 and 13 and the TFT substrate 11 or the color filter substrate 12 is far greater. strong.

  Next, the assembly process of the liquid crystal module 1 will be described with reference to FIG. FIG. 4 is a perspective view showing an assembly process of the liquid crystal module 1. The assembly process of the liquid crystal module 1 refers to a process of integrating the backlight and the separately manufactured liquid crystal panel 10.

  As shown in FIG. 4, the assembly process of the liquid crystal module 1 is performed in the assembly line 30. In the assembly line 30, the reflective sheet / support pin 2 is placed on the backlight (B / L) chassis 3 that flows on the conveyor 31, and the backlight and the liquid crystal panel including the LED substrate 5 and the LED or CCFL. The chassis 8, the diffusion plate 6, the optical sheet 7, the liquid crystal panel 10, and the bezel 9 are mounted in order.

  Here, the liquid crystal panel 10 is supplied in a state of being stored in a storage box 42 made of polypropylene, which will be described later. The protective films 14 and 14 described above are attached to the polarizing plates 13 and 13 attached to the supplied liquid crystal panel 10 in order to prevent dust and scratches. Therefore, in the process of mounting the liquid crystal panel 10, it is necessary to peel off at least the protective film 14 of the polarizing plate 13 on the back surface immediately before assembly. For this reason, in this Embodiment, the film peeling process which peels the protective film 14 of a back surface is provided. In addition, the protective film 14 of the polarizing plate 13 provided on the surface of the liquid crystal panel 10 is peeled off in a separate process.

  That is, a film peeling process is performed by the film peeling apparatus 50 provided in the side of the assembly line 30, as shown in FIG. In the film peeling step, first, the liquid crystal panel 10 is transferred from the panel supply line 40 to the film peeling device 50 using the transport unit 32, and then the back surface protective film 14 is peeled off by the film peeling device 50. Then, it is attached again to the upper side of the optical sheet 7 of the backlight module by the transport unit 32.

  The panel supply line 40 includes a supply conveyor 41 that conveys a storage box 42 that supports the liquid crystal panel 10 and stops the storage box 42 at a delivery position to the film peeling apparatus 50. The protective film 14 peeled off by the film peeling apparatus 50 is collected in a film collection box (not shown) provided on the lower side of the film peeling apparatus 50.

  The transport unit 32 includes a six-axis vertical articulated transport robot 32a and a panel suction hand 32b attached to the tip of the transport robot 32a for sucking and holding the liquid crystal panel 10. The transfer from the panel supply line 40 to the assembly line 30 is not necessarily limited to this, and can be performed manually by an operator, for example.

  Here, the film peeling apparatus 50 of this Embodiment is demonstrated in detail.

  Initially, the film peeling apparatus of the comparative example which solved the subject of the conventional film peeling apparatus is demonstrated.

  That is, in the peeling method of the surface sheet material disclosed in the conventional Patent Document 1, as shown in FIG. 15 (c), it is necessary to move a distance twice the diagonal length of the panel. There is a problem that the operation stroke of the peeling hand 104 becomes long.

  Further, in the film peeling and cutting method disclosed in Patent Document 2, as shown in FIG. 16, the peeled cover film 202 is pulled downward on the paper surface. This is because the initial peeling is the cover film 202 shown in FIG. This is possible after being done on the entire left side.

  However, initial peeling is easier at the corner and more difficult at the edge. Moreover, when initial peeling is performed at the corner, the film peeling and cutting method disclosed in Patent Document 2 cannot be used. In other words, in order to adopt this method, it is possible to peel off a considerable amount on the left side after initial peeling at the upper left corner, and then use this method.

  Further, when the peeled cover film 202 is taken sideways, the optimum θ is 45 degrees, and the take-up roll 203 and the proceeding cover film 202 are likely to collide with each other regardless of whether it becomes larger or smaller.

  Further, in the sheet-like material peeling method disclosed in Patent Document 3, as shown in FIGS. 17A to 17F, after the initial peeling, between the sheet-like material 302 and the plate-like body 301 is performed. The fluid 305a is blown into the film to cause peeling, but this method is difficult when the adhesive strength of the sheet-like object 302 is strong. Moreover, when it becomes large, it is necessary to blow in the fluid 305a with a very strong pressure. Furthermore, there is a problem that the peeled portion tends to flutter and is dangerous.

  Therefore, in order to solve these problems, as shown in FIG. 13 (a), the liquid crystal panel is tilted with respect to the film peeling device and placed in an oblique direction, and then, FIG. 13 (b) ( As shown in c), the tape peeling head 81 performs the initial peeling of the corners of the protective film, and then, as shown in FIG. 13A, the rollers 82 are arranged so as to be orthogonal to the peeling direction of the protective film. The roller 82 is moved relative to the liquid crystal panel 10. Thereby, the roller 82 contacts the protective film while rotating, and as a result, the roller 82 can be peeled while being kept parallel to the peeling interface of the protective film on the back surface.

  That is, after the protective film is initially peeled, in order to peel the entire protective film with the roller 82, first, the extending direction of the roller 82 passed between the protective film and the polarizing plate of the liquid crystal panel and the protective film The direction of the film peeling interface needs to be parallel. Further, the relative movement direction of the roller 82 needs to be perpendicular to the direction of the film peeling interface. This is because the protective film may break if the initial peeling direction and the contact surface of the roller 82 do not match. Further, if the roller 82 is not operated vertically, slipping occurs between the roller 82 and the protective film, which may cause problems such as generation of dust and cutting of the protective film.

  Here, when the protective film is initially peeled at the corners, the film peeling interface is inclined with respect to the rectangular liquid crystal panel.

  Therefore, when the extending direction of the roller 82 is made parallel to the film peeling interface, the roller 82 is in contact with the protective film while rotating. It needs to be repositioned so that it tilts.

  However, in this method, as shown in FIG. 14, the liquid crystal panel protrudes from the width of the film peeling device on which the liquid crystal panel is placed, and as a result, the installation area of the film peeling device is increased. . Moreover, since the access from the side of a film peeling apparatus becomes far, there exists a problem that workability | operativity is bad.

  Therefore, in the present embodiment, a film peeling apparatus 50 that solves this problem is provided.

  Specifically, in the film peeling apparatus 50 according to the present embodiment, as shown in FIGS. 1A and 1B, the rectangular liquid crystal panel 10 is arranged on the side of the film peeling apparatus 50 in the film peeling apparatus 50. It is placed in parallel with the end and maintains its state in the film peeling process.

  Here, in order to secure the above state and solve the problem, the following conditions are necessary. 6A and 6B show directions indicated by the following conditions.

  Condition 1: For example, the extending direction P of the peeling member such as a roller and the direction F of the film peeling interface of the protective film are parallel to each other.

  Condition 2: The moving direction M1 of the peeling member coincides with the direction M2 of the pair of two sides in the rectangular liquid crystal panel. Precisely, the moving direction M1 of the peeling member is not related to the direction F of the film peeling interface.

  If the above condition 1 is not satisfied, the force applied to the film peeling interface of the protective film becomes non-uniform and cannot be peeled cleanly, which is an essential condition.

  Next, for condition 2, since the adhesive surface of the peeled protective film comes into contact with the peeling member, the protective film does not slide on the peeling member. For this reason, when the peeling member is a roller, the protective film can move only in the rotation direction of the roller.

  However, Condition 2 can be satisfied if the protective film can move in the direction other than the rotation direction of the peeling member on the surface of the peeling member.

Therefore, as a specific configuration satisfying condition 2,
(1) Even if the peeling member is a roller type and can only rotate around the roller axis, the moving direction of the peeling member and the direction of the film peeling interface are irrelevant by providing a ball or the like exposed on the roller. Thus, condition 2 can be satisfied.
(2) Since the adhesive surface of the peeled protective film comes into contact with the peeling member, the protective film usually does not slide on the peeling member, but if the peeling member is non-adhesive, the peeling member is slid onto the protective film. By moving, the condition 2 can be satisfied.

  And, by satisfying these conditions, the range through which the roller passes is only the width of the liquid crystal panel 10, so that it can be arranged in a small space, and since it is close to the liquid crystal panel 10 from both sides of the film peeling apparatus, This makes it easier to work. Further, since the roller can pass through the protective film and the roller without sticking to each other, the protective film 14 can be prevented from being broken and the generation of dust due to the adhesive.

  The film peeling apparatus 50 of the present embodiment devised based on the above idea will be described in detail below based on FIGS. 1 (a), (b), and (c). FIG. 1A is a plan view showing the configuration of the film peeling device, FIG. 1B is a perspective view showing the configuration of the film peeling device, and FIG. 1C is a single piece attached to the peeling roller. It is a perspective view which shows the structure of an omni wheel.

  That is, as shown in FIGS. 1A and 1B, the film peeling apparatus 50 according to the present embodiment has a rectangular table-shaped legged upper frame 51a and a rectangular table-shaped legged lower frame 51b vertically. A protective film receiver 59 that accommodates the peeled protective film 14 is provided below the inner side of the legged lower frame 51b. Then, the liquid crystal panel 10 is transferred onto the legged upper frame 51 a by the transport unit 32 in a state where the liquid crystal panel 10 is removed from the storage box 42. The polarizing plates 13 and 13 are respectively attached to the front and back surfaces of the liquid crystal panel 10, and protective films 14 and 14 are attached to the surfaces of the polarizing plates 13 and 13, respectively. Therefore, in the film peeling apparatus 50 of the present embodiment, the liquid crystal panel 10 has a rectangular shape such as a rectangle in the horizontal plane, and one pair of two opposite sides of the rectangle are legs on which the liquid crystal panel 10 is placed. It is mutually parallel with the attached upper side frame 51a.

  Further, the film peeling device 50 is a corner portion gripping means for gripping the corner portion of the protective film 14 below the legged lower frame 51 b and peeling the corner portion of the protective film 14 from the polarizing plate 13. A tape peeling head 52 is provided. The tape peeling head 52 moves on the diagonal line of the liquid crystal panel 10 while adhering and holding the corners of the protective film 14 attached to the polarizing plate 13 on the back surface of the liquid crystal panel 10 with a tape. It has become. However, it does not move all of the diagonal lines, but moves halfway.

  Further, the film peeling device 50 is provided with a peeling roller 53 made of a rod-like member as a whole surface peeling member, and the peeling roller 53 is provided on the lower frame 51b with legs provided below the upper frame 51a with legs. Both end portions thereof are supported on the upper side so as to translate on the legged lower frame 51b. The extending direction of the peeling roller 53 is inclined from a direction orthogonal to one pair of two sides in the liquid crystal panel 10. The peeling roller 53 moves in parallel with one pair of two sides of the liquid crystal panel 10 while maintaining the tilt angle.

  As shown in FIG. 7, the inclination angle θ between the extending direction of the peeling roller 53 and the direction perpendicular to the relative movement direction of the peeling roller 53 with respect to the liquid crystal panel 10 is larger than 0 degree, and It is 45 degrees or less. That is, the inclination angle θ between the extending direction of the peeling roller 53 and the direction perpendicular to the relative movement direction of the peeling roller 53 is determined by the initial peeling direction at the corner of the protective film 14. In the initial peeling, the inclination angle θ is 45 degrees for the most efficient peeling of the corners of the protective film 14. On the other hand, the closer the inclination angle θ is to 0 degrees, the shorter the time from the start of peeling to the completion of peeling. In the present embodiment, for example, the angle between the diagonal line of the liquid crystal panel 10 and one side is set.

  Here, the peeling roller 53 of the present embodiment needs to be composed of a rod-shaped roller that can rotate around its axis and whose surface portion can move in a direction different from the axis. As such a configuration, various forms can be adopted in the present embodiment.

  For example, as shown in FIGS. 1B and 1C, the peeling roller 53 may be provided with a plurality of omni wheels 54 that are in contact with the protective film 14. The omni wheel 54 is a wheel that moves indefinitely and horizontally. The omni wheel 54 is a wheel that can rotate about the axis of the wheel and at the same time can rotate perpendicularly to the rotational direction of the wheel. In detail, the omni wheel 54 is provided with a plurality of small rollers on a substantially spherical wheel body, which can rotate around the axis of the wheel body, while each roller can rotate with respect to the direction of rotation of the wheel body. And can be rotated vertically.

  With this configuration, when the plurality of omni wheels 54 abut against the protective film 14, the omni wheels 54 can be relatively moved in a direction other than the rotation direction of the peeling roller 53. As a result, the peeling roller 53 made of a rod-shaped member can be moved relative to the liquid crystal panel 10.

  Here, as shown in FIGS. 1B and 1C, the omni wheel 54 is not limited to the one that protrudes from the peeling roller 53 described above. For example, as shown in FIG. 8, a plurality of omni wheels 54... Also in this configuration, when the plurality of omni wheels 54 are in contact with the protective film 14, they can be relatively moved in a direction other than the rotation direction of the peeling roller 53. As a result, the peeling roller 53 made of a rod-shaped member can be moved relative to the liquid crystal panel 10.

  Further, as shown in FIG. 9, the peeling roller 53 may be provided with a plurality of embedded balls 55 that are in contact with the protective film 14 so as to be exposed from the surface of the peeling roller 53.

  As a result, when the peeling roller 53 contacts the protective film 14, the plurality of embedded balls 55 contact the protective film 14. As a result, since the ball 55 and the protective film 14 come into contact with each other, the peeling roller 53 can be relatively moved in a direction other than the rotation direction of the peeling roller 53. As a result, the peeling roller 53 made of a rod-shaped member can be moved relative to the liquid crystal panel 10.

  Moreover, as shown in FIG. 10, the whole surface peeling member can be made to consist of the rod-shaped roller 56 which can rotate around an axis | shaft, and the surface part can move to the direction different from an axis periphery.

  That is, when the entire surface peeling member is made of the bar-shaped roller 56, when the bar-shaped roller 56 contacts the adhesive surface of the protective film 14, the protective film 14 can generally be moved only in the rotation direction of the bar-shaped roller 56. Can not.

  However, if the rod-shaped roller 56 is rotatable around the axis and the surface portion is movable in a direction different from the axis, the rod-shaped roller 56 is relatively moved in a direction other than the rotation direction of the rod-shaped roller 56. Can be made.

  As a specific example having such a structure, for example, a case where the rod-shaped roller 56 is formed of a low friction and non-adhesive material such as a fluororesin, or a case where a fluororesin is coated is applicable.

  Furthermore, as shown in FIG. 11, it is conceivable to eject a fluid 58 such as air from the entire surface peeling member formed of the rod-like body 57. Also by this, the friction between the rod-shaped roller 56 and the protective film 14 becomes small, so that the rod-shaped body 57 can be relatively moved in a direction other than the rotation direction of the rod-shaped body 57.

  A film peeling method using the film peeling apparatus 50 having the above configuration will be described with reference to FIGS. 12A to 12F are diagrams showing a film peeling process in the film peeling apparatus 50. FIG.

  First, the liquid crystal panel 10 is placed on the legged upper frame 51a in the film peeling apparatus 50 shown in FIG. As a result, as shown in FIG. 12A, the tape peeling head 52 located below the corner of the protective film 14 on the back surface is moved upward, and as shown in FIG. The tape 52 a of 52 presses the corners of the protective film 14 and adheres to the protective film 14. Then, in this state, as shown in FIG. 12C, the tape peeling head 52 is slightly moved forward. Thereby, the tape 52a adheres to a fixed region of the corner portion of the protective film 14. In addition, this fixed area | region becomes more than the area which can ensure the adhesive force which the tape 52a keeps sticking the corner | angular part in the protective film 14, when the peeling roller 53 mentioned later moves forward and contacts the protective film 14. Yes. Alternatively, the predetermined area is set to an area that can secure an adhesive force that keeps the adhesion between the tape 52a and the protective film 14 when the tape peeling head 52 described later is moved downward, and before the peeling roller 53 moves forward. It is also possible to adopt a configuration in which a clamp material (not shown) that can hold the peeled protective film 14 is provided separately. For example, it is not necessary to endure the peeling force when the peeling roller 53 is passed only with the tape 52a, and the holding force may be secured by being sandwiched by a separate clamp (not shown).

  Next, as shown in FIG. 12 (d), when the tape 52a is taken up by the tape take-up roller 52b of the tape peeling head 52, the corner protective film 14 is pulled downward. Is peeled off from the polarizing plate 13 (not shown) of the liquid crystal panel 10. Thereby, the initial peeling is completed.

  Next, as shown in FIG. 12 (e), the tape peeling head 52 is moved downward from the horizontal position of the peeling roller 53. Thereby, the protective film 14 is peeled downward. In this state, the peeling roller 53 is moved forward as shown in FIG. As a result, the peeling roller 53 comes into contact with the protective film 14, and the protective film 14 is pulled downward by the advancing movement of the peeling roller 53, so that the protective film 14 is peeled off from the polarizing plate 13 (not shown). Then, by continuing the advance movement of the peeling roller 53, the protective film 14 is eventually peeled off from the polarizing plate 13 over time.

  Thus, the film peeling apparatus 50 of this Embodiment peels the protective film 14 from the polarizing plate 13 of the liquid crystal panel 10 with which the protective film 14 was affixed. The film peeling apparatus 50 includes a tape peeling head 52 that holds a corner as an end of the protective film 14 and peels the corner of the protective film 14 from the polarizing plate 13. Further, the entire surface that is inserted into the gap between the corner of the peeled protective film 14 and the polarizing plate 13 and moves relative to the liquid crystal panel 10 with the tape peeling head 52 holding the corner of the protective film 14. A peeling roller 53, a bar-shaped roller 56, and a bar-shaped body 57 are provided as peeling members. The extending direction of the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57 is inclined from the direction orthogonal to the relative movement direction of the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57. The relative movement means that the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 may move along the plane of the liquid crystal panel 10 with respect to the liquid crystal panel 10, or the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body. It means that when the body 57 is fixed and the liquid crystal panel 10 is transported, for example, the liquid crystal panel 10 may move in the transport direction. In this case, the relative movement direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 with respect to the liquid crystal panel 10 is a direction parallel to one pair of two sides facing each other in the rectangular liquid crystal panel 10. .

  Moreover, the film peeling method of this Embodiment is peeling as a whole surface peeling member inserted in the clearance gap between the corner | angular part of the peeled protective film 14, and the polarizing plate 13, in the state which hold | gripped the corner | angular part of the protective film 14. This includes a whole surface peeling process in which the roller 53, the bar-shaped roller 56, and the bar-shaped body 57 are moved relative to the liquid crystal panel 10. In the entire surface peeling step, the extending direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 is inclined from the direction orthogonal to the relative movement direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57.

  According to this configuration, in the corner peeling step, the tape peeling head 52 holds the corner of the protective film 14 and the initial peeling is performed to peel the corner of the protective film 14 from the polarizing plate 13.

  Next, with the tape peeling head 52 holding the corner of the protective film 14, the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 are inserted into the gap between the corner of the peeled protective film 14 and the polarizing plate 13. In addition, the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57 are moved relative to the liquid crystal panel 10. At this time, the extending direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 is inclined from the direction orthogonal to the relative movement direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57.

  As a result, with respect to the liquid crystal panel 10 having a square horizontal surface, one pair of two opposite sides of the square are parallel to the relative movement directions of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57. The protective film 14 can be peeled off.

  Therefore, since the protective film 14 to be peeled does not protrude from the side of the liquid crystal panel 10, an increase in work space can be avoided. Further, the protective film 14 to be peeled off is not pulled out twice as long as the liquid crystal panel 10. Furthermore, since the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57 are merely moved relative to the liquid crystal panel 10, the large-sized protective film 14 can be reliably and easily peeled off.

  Accordingly, there is provided a film peeling apparatus 50 and a film peeling method capable of avoiding an increase in work space, preventing an increase in the peeling space in the protective film 14 to be peeled off, and reliably and easily peeling even in a large protective film 14. Can be provided.

  Moreover, in the film peeling apparatus 50 of this Embodiment, the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 can be slidable with the protective film 14. FIG. Accordingly, the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57 can peel the protective film 14 from the liquid crystal panel 10 while moving relative to the liquid crystal panel 10 by sliding with the protective film 14.

  Further, in the film peeling apparatus 50 of the present embodiment, the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57 can move relative to the liquid crystal panel 10 while being in contact with the protective film 14. Thereby, the peeling roller 53, the bar-shaped roller 56, and the bar-shaped body 57 can peel the protective film 14 from the liquid crystal panel 10 by sliding with the protective film 14.

  Further, in the film peeling apparatus 50 of the present embodiment, the liquid crystal panel 10 has a rectangular horizontal surface, and one pair of two opposite sides of the square has a peeling roller 53, a rod-shaped roller 56, and a rod-shaped body 57. Are parallel to each other.

  As a result, an increase in work space can be avoided reliably.

  Further, in the film peeling apparatus 50 of the present embodiment, the extending direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 and the direction orthogonal to the relative movement direction of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 are Is greater than 0 degree and equal to or less than 45 degrees.

  Thereby, in the initial peeling, in order to most efficiently peel the corners of the film, the inclination angle is 45 degrees. On the other hand, the closer the tilt angle is to 0 degrees, the shorter the time from the start of peeling to the completion of peeling.

  Moreover, in the film peeling apparatus 50 of this Embodiment, while the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 as a whole surface peeling member consist of a rod-shaped member, the film peeling interface with the polarizing plate 13 in the protective film 14 Direction F and the extending direction P of the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 made of a rod-shaped member are parallel to each other. The parallelism is not necessarily strictly parallel, and may be substantially parallel.

  Thus, when the peeling roller 53, the rod-shaped roller 56, and the rod-shaped body 57 made of a rod-shaped member are applied with force so that the protective film 14 is peeled by sliding, abutting, air, etc., against the protective film 14. Since a load can be uniformly applied to the peeling interface, the entire surface of the protective film 14 can be appropriately peeled off.

  In the film peeling apparatus 50 of the present embodiment, the peeling roller 53 is provided with a plurality of omni wheels 54 that come into contact with the protective film 14. Thereby, when the some omni wheel 54 contact | abuts to the protective film 14, it can be relatively moved to the direction which is not the rotation direction of the peeling roller 53. FIG. As a result, the peeling roller 53 made of a rod-shaped member can be moved relative to the liquid crystal panel 10.

  Further, in the film peeling apparatus 50 of the present embodiment, the peeling roller 53 is provided with a plurality of embedded balls 55 that are in contact with the protective film 14 so as to be exposed from the surface of the peeling roller 53. Thereby, when the peeling roller 53 comes into contact with the protective film 14, the plurality of embedded balls 55 comes into contact with the protective film 14. For this reason, the peeling roller 53 can be moved relative to the liquid crystal panel 10 by rotating the ball 55 with respect to the feeding of the protective film 14. Further, since the ball 55 rotates freely, the peeling roller 53 itself does not need to rotate. As a result, the peeling roller 53 made of a rod-shaped member can be moved relative to the liquid crystal panel 10.

  Moreover, in the film peeling apparatus 50 of this Embodiment, it is supposed that the whole surface peeling member consists of the rod-shaped roller 56 which can rotate around an axis | shaft, and the surface part can move to the direction different from an axis rotation. it can.

  That is, with such a configuration, the bar roller 56 can be relatively moved in a direction other than the rotation direction of the bar roller 56. As a specific example having such a structure, for example, a case where the rod-shaped roller is formed of a low friction and non-adhesive material such as a fluororesin, or a case where a fluororesin is coated is applicable. Alternatively, it is conceivable to eject the fluid 58 from the rod-like body 57. Thereby, the rod-shaped body 57 moves relative to the liquid crystal panel 10 between the liquid crystal panel 10 and the protective film 14, and a force is applied by the fluid 58 so as to peel off the protective film 14. The protective film 14 can be peeled off without contacting the protective film 14.

  In addition, in this Embodiment, the film peeling apparatus 50 which peels off the protective films 14 and 14 affixed on the polarizing plates 13 and 13 was demonstrated. However, the film peeling apparatus of this invention is not restricted to this, It is applicable also to peeling of the various films stuck on the to-be-protected member which consists of a plate-shaped object. That is, the film to be peeled off is not limited to a film intended to protect the protected member.

  Further, in the present embodiment, the initial peeling is performed by the tape peeling head 52, but the present invention is not necessarily limited to this as long as the corner of the protective film 14 can be gripped.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the technical means disclosed in each of the embodiments can be appropriately combined. The obtained embodiment is also included in the technical scope of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used for, for example, a film peeling apparatus and a film peeling method for peeling a protective film used for preventing scratches in an assembly process of an electric product such as a liquid crystal television.

1 Liquid crystal module 10 Liquid crystal panel (plate)
13 Polarizing plate (plate-like body)
14 Protective film (film)
30 assembly line 32 transport unit 40 panel supply line 41 supply conveyor 50 film peeling device 52 tape peeling head 52a tape 53 peeling roller (full surface peeling member, rod-shaped member)
54 Omni wheel 55 Ball 56 Rod roller (entire peeling member, rod member)
57 Rod-shaped body (entire peeling member, rod-shaped member)
58 Fluid 59 Protective film holder F Direction of film peeling interface P Extension direction of whole surface peeling member θ Inclination angle

Claims (7)

A film peeling apparatus for peeling a film from a plate-like body to which a film is attached,
With the edge of the film gripped, it is inserted into the gap between the peeled film end and the plate, and the film is peeled off from the plate while moving relative to the plate. A member is provided,
The extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member , and
The film peeling apparatus according to claim 1, wherein the whole surface peeling member is composed of a rod-shaped roller that can rotate about an axis without sliding the film and whose surface portion can move in a direction different from the axis . The plate-like body has a horizontal horizontal plane,
Two sides of one of a pair of opposing the rectangular is, film peeling apparatus according to claim 1, wherein that it is parallel to each other and relative movement direction of the entire peeling member. The inclination angle of the direction perpendicular to the relative moving direction of the extending direction and該全surface peeling member of the entire surface of the peeling member, according to claim 1 or 2, wherein the greater than 0 degrees, and is 45 degrees or less Film peeling equipment. The entire surface peeling member is made of a rod-shaped member,
The film according to claim 1, 2 or 3, wherein the direction of the film peeling interface with the plate-like body in the film and the extending direction of the whole surface peeling member made of the rod-like member are parallel to each other. Peeling device. A film peeling apparatus for peeling a film from a plate-like body to which a film is attached,
With the edge of the film gripped, it is inserted into the gap between the peeled film end and the plate, and the film is peeled off from the plate while moving relative to the plate. A member is provided,
The extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member, and
The entire surface peeling member is made of a rod-shaped member,
The direction of the film peeling interface with the plate-like body in the film and the extending direction of the whole surface peeling member made of the rod-shaped member are parallel to each other,
The film peeling apparatus according to claim 1, wherein the rod-shaped member is provided with a plurality of omni wheels that come into contact with the film . A film peeling apparatus for peeling a film from a plate-like body to which a film is attached,
With the edge of the film gripped, it is inserted into the gap between the peeled film end and the plate, and the film is peeled off from the plate while moving relative to the plate. A member is provided,
The extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member, and
The entire surface peeling member is made of a rod-shaped member,
The direction of the film peeling interface with the plate-like body in the film and the extending direction of the whole surface peeling member made of the rod-shaped member are parallel to each other,
The film peeling apparatus according to claim 1, wherein a plurality of embedded balls that are in contact with the film are exposed from the surface of the rod-shaped member. A film peeling method for peeling a film from a plate-like body to which a film is attached,
In a state of gripping the edge of the film, including a full-surface peeling step of relatively moving the full-surface peeling member inserted in the gap between the peeled film end and the plate-like body,
In the entire surface peeling step, the extending direction of the whole surface peeling member is inclined from the direction orthogonal to the relative movement direction of the whole surface peeling member , and
The film peeling method, wherein the whole surface peeling member comprises a rod-shaped roller that can rotate around an axis without sliding the film and whose surface portion can move in a direction different from the axis .