A device for stripping POL protective film

Abstract

The present application relates to the technical field of liquid crystal screen production, a device for stripping POL protective film, a stripping rubber roller and an easy-to-tear roller are installed at the bottom of the main body, the main body is rotatably installed on the inner wall of the workbench, a polarizing plate with a release film is placed on the workbench at the bottom of the main body, and the polarizing plate is transmitted through a conveying device; both ends of the stripping rubber roller are rotatably installed in the bearing seat, one end of the bearing seat is installed with a driving motor, a winding tape roll is installed at the feeding end of the stripping rubber roller, and a first winding roller is installed at the discharging end, and the winding tape on the winding tape roll is wound on the first winding roller after passing through the bottom of the stripping rubber roller; the bearing seats on both sides of the easy-to-tear roller are installed at the bottom of the bracket, and the bracket is controlled to rise and fall through the lifting mechanism on the main body, and the easy-to-tear roller and the second winding roller are installed on the front and back sides of the bracket respectively. The present application uses two stripping methods at the same time, avoiding the traditional single stripping method, and can adapt to the stripping needs of release films with different stripping forces.

Description

Technical Field

[0001] The present application relates to the technical field of liquid crystal panel production, and in particular to a device for peeling off a POL protective film. Background Art

[0002] The liquid crystal display panel is mainly composed of a glass substrate, a polarizing plate, a transparent electrode, an alignment film, a liquid crystal film and a color filter, among which the polarizing plate is attached to the glass substrate and only allows light in a single polarization direction to pass through. In order to expose the adhesive layer on one side of the polarizing plate, the release film on the polarizing plate must be removed from the polarizing plate before bonding the polarizing plate. In the process of removing the release film, the polarizing plate is usually fixed on the suction table by suction, and the release film on the polarizing plate is pulled off the polarizing plate by a rubber roller or an easy-tear sticker. Due to the long-term use of the rubber roller, its adhesion becomes worse, and the polarizing plate with abnormal peeling force will have abnormal peeling problems. The easy-tear sticker peeling method is complicated, and the easy-tear sticker is discarded together with the release film after peeling off the release film, and it needs to be stopped for replacement, which greatly increases the production cost. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the present application provides a device for stripping a POL protective film.

[0004] The present application provides a device for stripping a POL protective film using the following technical solution:

[0005] A device for peeling off a POL protective film, which is used to tear off the release film on a polarizing plate, comprises a main body, a peeling rubber roller and an easy-tear adhesive roller are installed at the bottom of the main body, the main body is rotatably installed on the inner side wall of a workbench, and a polarizing plate with a release film is placed on the workbench at the bottom of the main body, and the polarizing plate is transmitted by a conveying device; a peeling rubber roller, both ends of the peeling rubber roller are rotatably installed in a bearing seat, wherein a driving motor is installed at one end of the bearing seat, a winding tape roll is installed at the feeding end of the peeling rubber roller, and a first winding roller is installed at the discharging end, wherein the winding tape on the winding tape roll is wound on the first winding roller after passing through the bottom of the peeling rubber roller; an easy-tear adhesive roller, bearing seats on both sides of the easy-tear adhesive roller are installed at the bottom of a bracket, wherein the bracket is controlled to rise and fall by a lifting mechanism on the main body, and an easy-tear adhesive roll and a second winding roller are respectively installed on the front and rear sides of the bracket, a film tearing mechanism is also provided on one side of the easy-tear adhesive roll, and a plurality of easy-tear adhesives are spaced apart on the easy-tear adhesive roll, wherein the protective film of the easy-tear adhesive is located on one side of the film tearing mechanism.

[0006] By adopting the above technical solution, a polarizing plate covered with a release film is placed on a workbench, the main body is rotated from the side of the workbench to the surface of the workbench, a peeling rubber roller and an easy-to-tear roller are installed at the bottom of the main body, and the release film on the polarizing plate is first peeled off by the peeling rubber roller, the peeling roller rotates under the drive of the driving motor, and the winding belt on one side of the peeling rubber roller is unwound, and the peeled release film is brought into the first winding roller for collection after rotating along the peeling rubber roller. When the release film peeling force on the surface of the polarizing plate is abnormal, the peeling rubber roller fails to peel the release film from the polarizing plate, and a visual recognition device can be set between the glass rubber roller and the easy-to-tear roller to detect whether the release film is torn off. At this time, the lifting mechanism is driven to lower the bracket on which the easy-to-tear roller is installed, and then the release film is adhered and peeled off by the easy-to-tear tape on the peeling rubber roller, wherein when the easy-to-tear tape is unwound from the easy-to-tear tape roll, the film tearing mechanism tears off and collects the protective film on the easy-to-tear tape.

[0007] Preferably, a buffer mechanism is also installed on one side of the bottom of the main body close to the workbench, wherein the buffer mechanism includes a buffer roller and a mounting frame on the top thereof, and the top of the mounting frame is connected to the bottom of the main body through an elastic element.

[0008] By adopting the above technical solution, the buffer mechanism installed at the bottom of the main body can contact the workbench preferentially when the main body rotates toward the workbench surface. When the buffer roller contacts the workbench, the elastic element on the top of the mounting frame provides buffering, thereby reducing the damage caused by the collision between the peeling rubber roller and the easy-tear adhesive roller and the workbench.

[0009] Preferably, there are at least two groups of peeling rubber rollers, the surface of the winding belt is sticky and can adhere to the release film, and the winding belt has a strip structure and is located at the center of the peeling rubber rollers.

[0010] By adopting the above technical solution, the surface of the winding belt at the center of the stripping rubber roller is sticky and can adhere to the stripped release film, so that the release film is transferred to the first winding roller for winding.

[0011] Preferably, the bracket adopts an inverted U-shaped structure, wherein the easy-tear adhesive roller is installed at the bottom open end of the bracket, and the lifting mechanism is installed on the top of the main body and connected to the top of the bracket.

[0012] Preferably, slide grooves are provided on both sides of the main body, and the slide grooves are adapted to the two side rods of the bracket.

[0013] By adopting the above technical solution, the lifting mechanism drives the bracket to lift and lower, thereby driving the easy-tear adhesive roller to lift and lower, and the bracket slides along the slide grooves on both sides of the main body to move up and down, thereby ensuring the stability of lifting and lowering.

[0014] Preferably, the film tearing mechanism comprises a collecting box connected to the side of the easy-tear roller and a clamping assembly on the top of the collecting box.

[0015] Preferably, the clamping assembly comprises a plate body which is fitted with the easy-tear adhesive roll, wherein one end of the plate body which is fitted with the easy-tear adhesive roll is provided with a blade, and a clamping plate for clamping the protective film is installed on the plate body, and both sides of the clamping plate are connected to the plate body through telescopic rods.

[0016] By adopting the above technical solution, the film tearing mechanism contacts the easy-tear sticker roll through the end with a blade on the plate body, and cooperates with the clamping plate on the plate body to clamp under the action of the telescopic rod, so as to tear off the protective film on the easy-tear sticker. After it is completely torn off, the protective film can be dropped into the collection box for collection by loosening the clamping plate.

[0017] Preferably, a release film collecting chamber is provided in the main body, wherein the first winding roller and the second winding roller are both located in the release film collecting chamber, wherein a material taking plate is provided on the top of the release film collecting chamber.

[0018] By adopting the above technical solution, the release film collection chamber in the main body is used to place the first winding roller and the second winding roller. After the release film on them is fully collected, the release film can be taken out by opening the material taking plate on the top to replace the roller body.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. This application selects to use the easy-to-tear adhesive roller according to the peeling force of the incoming material under the working state of the conventional peeling rubber roller. There is no need to reconfirm the peeling point or switch the hardware, and the switching is convenient and fast;

[0021] 2. The two peeling methods in this application are used simultaneously, avoiding the traditional single peeling method, and can adapt to the peeling requirements of release films with different peeling forces. At the same time, it can also reduce the use of easy-tear stickers and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The invention discloses an overall structure of a device for stripping a POL protective film.

[0023] Figure 2 yes Figure 1 Enlarged view of the film tearing mechanism.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. Main body; 11. Workbench; 12. Release film; 13. Polarizing plate; 14. Conveying device; 15. Buffer mechanism; 151. Buffer roller; 152. Mounting frame; 153. Elastic element; 16. Slide; 17. Release film collecting chamber; 171. Material taking plate; 2. Peeling rubber roller; 21. Winding tape roll; 211. Winding tape; 22. First winding roller; 3. Easy-tear roller; 31. Bracket; 32. Lifting mechanism; 33. Easy-tear roll; 34. Second winding roller; 35. Film tearing mechanism; 351. Collecting box; 352. Clamping assembly; 3521. Plate; 3522. Clamping plate; 3523. Telescopic rod; 4. Driving motor. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 This application is described in further detail.

[0026] The embodiment of the present application discloses a device for stripping a POL protective film.

[0027] Reference Figure 1 and Figure 2, a device for peeling off a POL protective film, which is used to tear off a release film 12 on a polarizing plate 13, comprises a main body 1, a peeling rubber roller 2 and an easy-to-tear roller 3 are installed at the bottom of the main body 1, the main body 1 is rotatably installed on the inner side wall of a workbench 11, and a polarizing plate 13 with a release film 12 is placed on the workbench 11 at the bottom of the main body 1, and the polarizing plate 13 is transported by a conveying device 14; a peeling rubber roller 2, both ends of the peeling rubber roller 2 are rotatably installed in a bearing seat, wherein a driving motor 4 is installed at one end of the bearing seat, a winding roll 21 is installed at the feeding end of the peeling rubber roller 2, and a winding roll 21 is installed at the discharging end A first winding roller 22 is installed, wherein the winding tape 211 on the winding tape roll 21 is wound on the first winding roller 22 after passing through the bottom of the peeling rubber roller 2; an easy-tear sticker roller 3, the bearing seats on both sides of the easy-tear sticker roller 3 are installed at the bottom of the bracket 31, wherein the bracket 31 is controlled to rise and fall by the lifting mechanism 32 on the main body 1, and the front and rear sides of the bracket 31 are respectively installed with an easy-tear sticker roll 33 and a second winding roller 34, a film tearing mechanism 35 is also provided on one side of the easy-tear sticker roll 33, and a plurality of easy-tear stickers are distributed on the easy-tear sticker roll 33 at intervals, wherein the protective film of the easy-tear sticker is located on one side of the film tearing mechanism 35. A polarizing plate 13 covered with a release film 12 is placed on a workbench 11, and the main body 1 is rotated from the side of the workbench 11 to the surface of the workbench 11, and a peeling rubber roller 2 and an easy-tear roller 3 are installed at the bottom of the main body 1. The release film 12 on the polarizing plate 13 is first peeled off by the peeling rubber roller 2, and the peeling roller rotates under the drive of the driving motor 4, and the winding tape 211 is unwound from the winding tape roll 21 on one side of the peeling rubber roller 2, and the peeled release film 12 is brought into the first winding roller 22 for collection after rotating along the peeling rubber roller 2. When the peeling force of the release film 12 on the surface of the polarizing plate 13 is abnormal, the peeling rubber roller 2 fails to peel the release film 12 from the polarizing plate 13, and a visual recognition device can be set between the glass rubber roller and the easy-tear roller 3 to detect whether the release film 12 is torn off. At this time, the lifting mechanism 32 is driven to lower the bracket 31 on which the easy-tear roller 3 is installed, and then the release film 12 is adhered and peeled off through the easy-tear tape on the peeling rubber roller 2. When the easy-tear tape is unwound from the easy-tear tape roll 33, the film tearing mechanism 35 tears off and collects the protective film on the easy-tear tape.

[0028] Reference Figure 1 A buffer mechanism 15 is also installed on one side of the bottom of the main body 1 near the workbench 11, wherein the buffer mechanism 15 includes a buffer roller 151 and a mounting frame 152 on the top thereof, and the top of the mounting frame 152 is connected to the bottom of the main body 1 through an elastic element 153. The buffer mechanism 15 installed at the bottom of the main body 1 can preferentially contact the workbench 11 when the main body 1 rotates toward the surface of the workbench 11. When the buffer roller 151 contacts the workbench 11, the elastic element 153 on the top of the mounting frame 152 performs buffering, thereby reducing the damage caused by the collision between the peeling rubber roller 2 and the easy-tear adhesive roller 3 and the workbench 11.

[0029] Reference Figure 1There are at least two groups of peeling rubber rollers 2, and the surface of the reel 211 is sticky and can adhere to the release film 12, and the reel 211 adopts a strip structure and is located at the center of the peeling rubber roller 2. The surface of the reel 211 in the center of the peeling rubber roller 2 is sticky and can adhere to the peeled release film 12, so as to transfer the release film 12 to the first reel 22 for reeling.

[0030] Reference Figure 1 The bracket 31 adopts an inverted U-shaped structure, wherein the easy-to-tear adhesive roller 3 is installed at the bottom open end of the bracket 31, and the lifting mechanism 32 is installed on the top of the main body 1 and connected to the top of the bracket 31. The main body 1 has slide grooves 16 on both sides, and the slide grooves 16 are adapted to the two side rods of the bracket 31. The lifting mechanism 32 drives the bracket 31 to rise and fall, thereby driving the easy-to-tear adhesive roller 3 to rise and fall, and the bracket 31 slides along the slide grooves 16 on both sides of the main body 1 to move up and down, ensuring the stability of the lifting.

[0031] Reference Figure 1 and Figure 2 The film-tearing mechanism 35 includes a collection box 351 connected to the side of the easy-tear adhesive roller 3 and a clamping assembly 352 on the top of the collection box 351. The clamping assembly 352 includes a plate body 3521 that is attached to the easy-tear adhesive roll 33, wherein one end of the plate body 3521 that is attached to the easy-tear adhesive roll 33 is provided with a blade, and a clamping plate 3522 for clamping the protective film is installed on the plate body 3521, and both sides of the clamping plate 3522 are connected to the plate body 3521 through a telescopic rod 3523. The film-tearing mechanism 35 contacts the easy-tear adhesive roll 33 through one end of the plate body 3521 with a blade, and the clamping plate 3522 on the plate body 3521 is clamped under the action of the telescopic rod 3523, so that the protective film on the easy-tear adhesive can be torn off, and after being completely torn off, the protective film can be dropped into the collection box 351 for collection by loosening the clamping plate 3522.

[0032] Reference Figure 1 The main body 1 is provided with a release film collecting chamber 17, wherein the first winding roller 22 and the second winding roller 34 are both located in the release film collecting chamber 17, wherein a material taking-up plate 171 is provided at the top of the release film collecting chamber 17. The release film collecting chamber 17 in the main body 1 is used to place the first winding roller 22 and the second winding roller 34, and after the release film 12 thereon is fully collected, the release film 12 can be taken out by opening the material taking-up plate 171 at the top thereof to replace the roller body.

[0033] Working principle: first, place the polarizing plate 13 covered with the release film 12 on the workbench 11, rotate the main body 1 from the side of the workbench 11 to the surface of the workbench 11, install the peeling rubber roller 2 and the easy-tear adhesive roller 3 at the bottom of the main body 1, first peel the release film 12 on the polarizing plate 13 by the peeling rubber roller 2, the peeling roller rotates under the drive of the driving motor 4, and unwinds the winding tape 211 on the winding tape roll 21 on one side of the peeling rubber roller 2, and after rotating along the peeling rubber roller 2, the peeled release film 12 is brought into the first winding roller 22 for collection. When the peeling force of the release film 12 on the surface of the polarizing plate 13 is abnormal, the peeling rubber roller 2 fails to peel the release film 12 from the polarizing plate 13, at this time, the lifting mechanism 32 is driven to lower the bracket 31 on which the easy-tear adhesive roller 3 is installed, and then the release film 12 is adhered and peeled off by the easy-tear adhesive on the peeling rubber roller 2, and the peeled release film 12 is brought into the second winding roller 34 for collection.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for peeling off a POL protective film, which is used to tear off a release film (12) on a polarizing plate (13), characterized in that: include A main body (1), comprising a peeling rubber roller (2) and an easy-tear adhesive roller (3) installed at the bottom of the main body (1), the main body (1) is rotatably installed on the inner side wall of a workbench (11), and a polarizing plate (13) with a release film (12) is placed on the workbench (11) at the bottom of the main body (1), and the polarizing plate (13) is transported by a conveying device (14); A stripping rubber roller (2), wherein both ends of the stripping rubber roller (2) are rotatably mounted in a bearing seat, wherein a driving motor (4) is mounted at one end of the bearing seat, a winding tape roll (21) is mounted at the feeding end of the stripping rubber roller (2), and a first winding roller (22) is mounted at the discharging end, wherein the winding tape (211) on the winding tape roll (21) passes through the bottom of the stripping rubber roller (2) and is then wound on the first winding roller (22); An easy-to-tear adhesive roller (3), bearing seats on both sides of the easy-to-tear adhesive roller (3) are installed at the bottom of a bracket (31), wherein the bracket (31) is controlled to rise and fall by a lifting mechanism (32) on the main body (1), and an easy-to-tear adhesive roll (33) and a second winding roller (34) are respectively installed on the front and rear sides of the bracket (31), a film-tearing mechanism (35) is also provided on one side of the easy-to-tear adhesive roll (33), and a plurality of easy-to-tear adhesives are distributed at intervals on the easy-to-tear adhesive roll (33), wherein the protective film of the easy-to-tear adhesive is located on one side of the film-tearing mechanism (35).

2. The device for stripping a POL protective film according to claim 1, characterized in that: A buffer mechanism (15) is also installed on one side of the bottom of the main body (1) close to the workbench (11), wherein the buffer mechanism (15) comprises a buffer roller (151) and a mounting frame (152) on the top thereof, and the top of the mounting frame (152) is connected to the bottom of the main body (1) via an elastic element (153).

3. The device for stripping a POL protective film according to claim 1, characterized in that: The stripping rubber rollers (2) are provided in at least two groups. The surface of the winding belt (211) is sticky and can adhere to the release film (12). The winding belt (211) has a strip structure and is located at the center of the stripping rubber rollers (2).

4. The device for stripping a POL protective film according to claim 1, characterized in that: The bracket (31) adopts an inverted U-shaped structure, wherein the easy-tear adhesive roller (3) is installed at the bottom open end of the bracket (31), and the lifting mechanism (32) is installed on the top of the main body (1) and connected to the top of the bracket (31).

5. The device for stripping a POL protective film according to claim 4, characterized in that: Slide grooves (16) are provided on both sides of the main body (1), and the slide grooves (16) are adapted to the two side rods of the bracket (31).

6. The device for stripping a POL protective film according to claim 1, characterized in that: The film-tearing mechanism (35) comprises a collection box (351) connected to the side of the easy-tear roller (3) and a clamping assembly (352) on the top of the collection box (351).

7. The device for stripping a POL protective film according to claim 6, characterized in that: The clamping assembly (352) comprises a plate body (3521) which is in contact with the easy-tear adhesive roll (33), wherein one end of the plate body (3521) which is in contact with the easy-tear adhesive roll (33) is provided with a blade, and a clamping plate (3522) for clamping the protective film is installed on the plate body (3521), and both sides of the clamping plate (3522) are connected to the plate body (3521) through telescopic rods (3523).

8. The device for stripping a POL protective film according to claim 1, characterized in that: A release film collecting chamber (17) is provided in the main body (1), wherein the first winding roller (22) and the second winding roller (34) are both located in the release film collecting chamber (17), wherein a material taking plate (171) is provided at the top of the release film collecting chamber (17).

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