Polarizer tearing device

Abstract

The utility model discloses a polaroid tearing device which comprises a base, a stripping knife and a stripping assembly, the base is provided with a containing cavity and a tearing channel, and the tearing channel penetrates through the outer top wall of the base and the top wall of the containing cavity; the stripping knife is arranged on the inner side wall of the tearing channel, and a knife head of the stripping knife faces and extends to an opening in the end, away from the containing cavity, of the tearing channel. The stripping assembly comprises a driving part and two rubber rollers, the two ends of each rubber roller are rotationally connected with the two side walls of the containing cavity respectively, a clamping interval which corresponds to the tearing channel and is used for clamping the polaroid is formed between the two rubber rollers, and the output end of the driving part is connected with one rubber roller.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a polarizing film tearing device. Background Art

[0002] LCM (Liquid Crystal Display Module) refers to a component that assembles liquid crystal display devices, connectors, peripheral circuits such as control and drive FPC circuit boards, backlight sources, laminated covers, and structural parts to display information. In LCM, polarizers play a vital role. They produce polarization through the light of dichroic media, thereby affecting the luminous efficiency of LCD panels. Polarizers usually use polyvinyl alcohol (PVA) as the substrate and are divided into upper polarizers and lower polarizers, which are attached to the front and back of the LCD panel respectively.

[0003] During the production and use of LCM, the attached polarizer must be removed and a new polarizer must be reattached due to scratches, damage or other repair processes of the polarizer. In the related art, the polarizer tearing device uses a tearing tape to stick the polarizer to separate the LCD panel and the polarizer, but the tearing tape does not apply the same adhesive force to different parts of the polarizer. The inconsistent adhesive force may cause the polarizer to be damaged or torn uncleanly during the tearing process, thereby affecting its use effect and display quality on the LCD panel. Utility Model Content

[0004] The main purpose of the utility model is to provide a polarizer tearing device, aiming to improve the tearing effect of the polarizer.

[0005] In order to achieve the above-mentioned purpose, the polarizer tearing device proposed in the utility model comprises:

[0006] A base, wherein the base is provided with a cavity and a tearing channel, and the tearing channel passes through an outer top wall of the base and a top wall of the cavity;

[0007] a stripping knife, the stripping knife being arranged on the inner side wall of the tearing channel, the blade head of the stripping knife being oriented toward and extending to the opening of the tearing channel at one end away from the receiving cavity; and

[0008] The peeling assembly includes a driving member and two rubber rollers, the two ends of each rubber roller are respectively rotatably connected to the two side walls of the cavity, a clamping interval corresponding to the tearing channel and used to clamp the polarizer is formed between the two rubber rollers, and the output end of the driving member is connected to one of the rubber rollers.

[0009] In one embodiment of the utility model, a discharge port communicating with the outside is formed on the side wall of the cavity, and at least a part of the opening of the discharge port is located below the two rubber rollers.

[0010] In one embodiment of the utility model, the polarizer tearing device includes an anti-sticking guide plate, the two sides of the anti-sticking guide plate are respectively connected to the two side walls of the cavity, the bottom wall of the anti-sticking guide plate is connected to the bottom wall of the cavity, and is inclined below the clamping interval.

[0011] In one embodiment of the utility model, the polarizer tearing device includes a heating element, and the heating element is arranged on the top wall of the cavity.

[0012] In one embodiment of the utility model, the heating element includes a heating plate and a plurality of heating tubes, the heating plate is arranged on the top wall of the cavity, and the plurality of heating tubes are arranged in the heating plate at intervals along the width direction of the heating plate.

[0013] In one embodiment of the utility model, the base includes a pedestal and a carrying platform, the pedestal and the carrying platform are combined to form the cavity, and the carrying platform is provided with the tearing channel; an avoidance groove and an arc groove are formed on the side of the carrying platform facing the pedestal, one of the rubber rollers is accommodated in the avoidance groove, and the arc groove and the stripping knife are combined to avoid the other rubber roller.

[0014] In an embodiment of the utility model, the two rubber rollers are each provided with a plurality of spacing grooves along the length direction of the rubber rollers, and any two adjacent spacing grooves along the width direction of the rubber rollers are staggered.

[0015] In one embodiment of the utility model, the stripping assembly includes four first bearings, and two side walls of the cavity are spaced apart to form two receiving grooves with openings, and two first bearings are respectively arranged at both ends of the rubber roller along the length direction of the rubber roller, and each first bearing is accommodated in one of the receiving grooves.

[0016] In one embodiment of the utility model, the stripping assembly further includes three fasteners and four second bearings, two of the second bearings are respectively sleeved on both ends of the rubber roller along the length direction of the rubber roller, and each of the fasteners is penetrated through the second bearing and the side wall of the cavity and connected to one end of the rubber roller;

[0017] Two annular grooves are arranged at intervals on both side walls of the cavity, each annular groove corresponds to one of the cavity and is connected to each other, and each of the second bearings is accommodated in one of the annular grooves.

[0018] In one embodiment of the utility model, the stripping assembly further includes a transmission member, the transmission member includes a driving wheel, a driven wheel and a synchronous belt, the driving member is accommodated in the cavity, the output end of the driving member is movably arranged on a side wall of the cavity, the driving wheel is sleeved on the output end of the driving member, the driven wheel is connected to one of the rubber rollers, and the synchronous belt transmission connects the driving wheel and the driven wheel;

[0019] The polarizer tearing device also includes a protective cover, which is disposed on the transmission member and connected to the base.

[0020] In the technical solution of the present utility model, an operator extends an LCD panel with a polarizer attached thereto into the tearing channel, the peeling knife separates the edge of the polarizer from the LCD panel, the peeled polarizer extends into the clamping interval between the two rubber rollers, the driving member drives one of the rubber rollers to rotate, and drives the polarizer to move away from the tearing channel at a uniform speed, the LCD panel stays on the surface of the base and moves away from the tearing channel until the LCD panel is separated from the polarizer; the utility model adopts a peeling knife to separate part of the structure of the polarizer from the LCD panel, the two rubber rollers clamp the polarizer and drive the LCD panel to be completely separated from the polarizer, the separation force and clamping force applied to the polarizer by the peeling knife and the two rubber rollers are respectively consistent, thereby ensuring the stability of the tearing quality, and the LCD panel is supported by the base before and after tearing, which can prevent the LCD panel from being damaged due to uneven force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A schematic structural diagram of an embodiment of a polarizer tearing device is provided for the utility model;

[0023] Figure 2 A cross-sectional view of an embodiment of a polarizer tearing device is provided for the utility model;

[0024] Figure 3 A schematic diagram of the explosion structure of an embodiment of a polarizer tearing device is provided for the utility model;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] Description of Figure Numbers:

[0027] 100. Polaroid tearing device; 1. Base; 11. Receiving cavity; 12. Tearing channel; 13. Discharge port; 14. Base; 15. Carrying platform; 151. Avoidance groove; 152. Arc groove; 16. Receiving groove; 17. Ring groove; 18. Isolation ring block; 2. Stripping knife; 3. Stripping assembly; 31. Driving member; 32. Rubber roller; 321. Spacer groove; 33. First bearing; 34. Fastener; 35. Second bearing; 36. Transmission member; 361. Driving wheel; 362. Driven wheel; 363. Synchronous belt; 37. First control button; 38. Second control button; 4. Anti-sticking guide plate; 5. Heating member; 51. Heating plate; 52. Heating tube; 53. Temperature controller; 6. Protective cover.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] The utility model provides a polarizer tearing device 100 .

[0033] See also Figures 1 to 4 In one embodiment of the utility model, the polarizer tearing device 100 includes a base 1, a peeling knife 2 and a peeling assembly 3. The base 1 is provided with a cavity 11 and a tearing channel 12. The tearing channel 12 passes through the outer top wall of the base 1 and the top wall of the cavity 11; the peeling knife 2 is arranged on the inner side wall of the tearing channel 12, and the blade head of the peeling knife 2 faces and extends to the opening of the tearing channel 12 at one end away from the cavity 11; the peeling assembly 3 includes a driving member 31 and two rubber rollers 32, and the two ends of each rubber roller 32 are respectively rotatably connected to the two side walls of the cavity 11, and a clamping interval corresponding to the tearing channel 12 and used to clamp the polarizer is formed between the two rubber rollers 32, and the output end of the driving member 31 is connected to one of the rubber rollers 32.

[0034] In the technical solution of the utility model, the tearing channel 12 is a channel for accommodating and peeling the polarizer, which is located on the inner wall of the tearing channel 12. The size and shape of the tearing channel 12 should be sufficient to accommodate the polarizer to be peeled off, so as to ensure that the peeling knife 2 can smoothly perform the peeling operation; the operator extends the LCD panel with the polarizer attached into the tearing channel 12, and the peeling knife 2 separates the edge of the polarizer from the LCD panel. The peeled polarizer extends into the clamping area between the two rubber rollers 32, and the driving member 31 drives one of the rubber rollers 32 to rotate, so as to drive the polarizer at a uniform speed. The LCD panel moves away from the tearing channel 12, and stays on the surface of the base 1 and moves away from the tearing channel 12 until the LCD panel is separated from the polarizer. The utility model adopts a peeling knife 2 to separate part of the structure of the polarizer from the LCD panel, and two rubber rollers 32 clamp the polarizer and drive the LCD panel to be completely separated from the polarizer. The separation force and clamping force applied by the peeling knife 2 and the two rubber rollers 32 to the polarizer are respectively consistent, thereby ensuring the stability of the tearing quality. Before and after tearing, the LCD panel is supported by the base 1, which can prevent the LCD panel from being damaged due to uneven force.

[0035] To collect and recycle the stripped polarizer, please refer to Figure 2 and Figure 3 In one embodiment of the utility model, a discharge port 13 communicating with the outside is provided on the side wall of the cavity 11, and at least a part of the opening of the discharge port 13 is located below the two rubber rollers 32. After the LCD panel is separated from the polarizer, the polarizer is peeled off and enters the cavity 11. The operator can collect the peeled polarizer through the discharge port 13, or collect the peeled polarizer by setting a recycling bag at the discharge port 13. The discharge port 13 is provided to facilitate subsequent packaging, transportation or processing, thereby making the entire processing process smoother and more efficient.

[0036] See also Figure 2 and Figure 3In one embodiment of the utility model, the polarizer tearing device 100 includes an anti-sticking guide plate 4, the two sides of the anti-sticking guide plate 4 are respectively connected to the two side walls of the cavity 11, the bottom wall of the anti-sticking guide plate 4 is connected to the bottom wall of the cavity 11, and is tilted below the clamping interval. The anti-sticking guide plate 4 is made of Teflon material, and is used to guide the torn polarizer to fall downward, effectively guide the polarizer to move along a specific path, and be transmitted from the discharge port 13, so that the polarizer will not be rolled into the device, and can also prevent the polarizer from sticking to the anti-sticking guide plate 4 during the contact process, which is convenient for daily maintenance.

[0037] See also Figure 2 and Figure 3 In one embodiment of the utility model, the polarizer tearing device 100 includes a heating element 5, and the heating element 5 is arranged on the top wall of the cavity 11. The heating element 5 is arranged to heat the top wall of the cavity 11. Before the polarizer tearing operation is performed, the LCD panel with the polarizer attached is placed on the top wall of the cavity 11 to heat it and reduce the viscosity between the LCD panel and the polarizer. Then, the heated LCD panel with the polarizer attached is extended into the tearing channel 12 to perform the polarizer tearing operation. Heating can help soften these adhesives or materials, so that the polarizer can be separated from the LCD panel more easily, which helps to reduce the damage that may be caused during the tearing process, especially when the polarizer needs to be recovered for reuse.

[0038] See also Figure 2 In one embodiment of the utility model, the heating element 5 includes a heating plate 51 and a plurality of heating tubes 52. The heating plate 51 is arranged on the top wall of the cavity 11, and the plurality of heating tubes 52 are arranged on the heating plate 51 at intervals along the width direction of the heating plate 51. By arranging a plurality of heating tubes 52 at intervals on the heating plate 51, a more uniform heating distribution of the heating plate 51 can be achieved, so as to ensure that the temperature of the top wall surface of the entire cavity 11 is uniform, avoid local overheating or overcooling, and then evenly heat the LCD panel with the polarizer attached, ensure that the heating effect of each part of the LCD panel with the polarizer attached is consistent, and further ensure that the tearing quality of each part of the polarizer is consistent.

[0039] For further information, see Figure 1 and Figure 3 In one embodiment of the utility model, the heating element 5 includes a thermostat 53, which is electrically connected to the heating tube 52. The electrical connection between the thermostat 53 and the heating tube 52 realizes precise temperature control and protection, ensuring a stable and safe heating process. The thermostat 53 usually includes a temperature sensor for detecting the surface temperature of the heating plate 51. The thermostat 53 can adjust the power of the heating tube 52 according to the difference between the temperature of the heating plate 51 detected in real time by the temperature sensor and the set target temperature. The operator can also set different target heating temperatures according to polarizers of different viscosities.

[0040] See also Figure 3 In one embodiment of the utility model, the base 1 includes a base 14 and a carrying platform 15, the base 14 and the carrying platform 15 are enclosed to form a cavity 11, and the carrying platform 15 is provided with a tearing channel 12; an avoidance groove 151 and an arc groove 152 are formed on the side of the carrying platform 15 facing the base 14, wherein one rubber roller 32 is accommodated in the avoidance groove 151, and the arc groove 152 and the stripping knife 2 are enclosed to avoid the other rubber roller 32. The avoidance groove 151 and the arc groove 152 are provided, which can not only avoid the two rubber rollers 32 and allow the rubber rollers 32 to rotate, but also make the two rubber rollers 32 as close to the supporting platform 15 as possible, thereby reducing the distance between the LCD panel of the polarizer on the supporting platform 15 and the rubber rollers 32, avoiding the polarizer from being torn off and reducing the tearing quality; when the polarizer enters the cavity 11 from the tearing channel 12, the polarizer extends into the clamping area between the two rubber rollers 32 under the guidance of the arc groove 152, so that the two rubber rollers 32 can clamp the polarizer and drive the polarizer to complete the tearing operation.

[0041] See also Figure 3 In one embodiment of the utility model, the two rubber rollers 32 are provided with a plurality of spacing grooves 321 along the length direction of the rubber rollers 32, and any two adjacent spacing grooves 321 along the width direction of the rubber rollers 32 are staggered. The surface of the conventional rubber roller 32 is flat. When the two rubber rollers 32 with flat surfaces squeeze the rubber, a high local pressure may be formed at the contact point, causing the rubber to deform into an arc surface. The design of the spacing grooves 321 can form tiny grooves or protrusions on the surface of the rubber roller 32, so that the pressure is more evenly distributed between the rubber roller 32 and the rubber, reducing the concentrated effect of the pressure, increasing the contact points of the two rubber rollers 32, and helping to disperse the pressure, avoiding the arc deformation of the rubber caused by excessive local pressure, reducing the possibility of forming an arc surface, and thus maintaining the balance of force between the rubber roller 32 and the polarizer contact point, and improving the stability of the polarizer tearing quality.

[0042] See also Figure 4In the embodiment of the utility model, the stripping assembly 3 includes four first bearings 33. Two openings 16 are provided at intervals on both side walls of the cavity 11. The two first bearings 33 are respectively sleeved on both ends of a rubber roller 32 along the length direction of a rubber roller 32, and each first bearing 33 is accommodated in a groove 16. Both ends of each rubber roller 32 are sleeved with a first bearing 33. The first bearing 33 provides additional support at both ends of the rubber roller 32, and can also reduce the vibration of the rubber roller 32 during operation, thereby reducing the noise during operation of the device and improving the operating environment; the installation of the first bearing 33 can reduce the friction and wear between the rubber roller 32 and the side wall of the cavity 11, which helps to extend its service life and reduce the maintenance frequency and replacement cost. Each first bearing 33 is in a semi-clamped state with a receiving groove 16. The semi-clamped state can improve the automatic centering ability of the rubber roller 32, make the stripping assembly 3 run more stably, and reduce the friction and wear caused by incomplete axis alignment; the semi-clamped state between the first bearing 33 and the receiving groove 16 can reduce the vibration and noise during the rotation process. The first bearing 33 can move freely within a certain range in the height direction of the side wall of the cavity 11, absorb the vibration and impact from the rotation of the rubber roller 32, thereby reducing the noise level of the stripping assembly 3; when the first bearing 33 needs to be replaced or maintained, the semi-clamped design makes it relatively easy to remove or install the first bearing 33, saving maintenance time and cost, and the end of the rubber roller 32 does not exceed the first bearing 33, and is flush with the first bearing 33, so as to facilitate the removal of the rubber roller 32 and improve the convenience of installation and disassembly; in another embodiment, the opening of the receiving groove 16 is an upper opening, and is connected to the outside world. The setting of the upper opening makes it easier to install and disassemble the first bearing 33 and the rubber roller 32.

[0043] See also Figure 3 and Figure 4 In one embodiment of the utility model, the stripping assembly 3 also includes three fasteners 34 and four second bearings 35. The two second bearings 35 are respectively sleeved on the two ends of the rubber roller 32 along the length direction of the rubber roller 32. Each fastener 34 is penetrated through a second bearing 35 and the side wall of the cavity 11 and is connected to one end of the rubber roller 32. Two side walls of the cavity 11 are spaced apart from each other with two annular grooves 17, each annular groove 17 corresponds to a receiving groove 16 and is connected, and each second bearing 35 is accommodated in an annular groove 17. When the driving member 31 drives the rubber roller 32 to rotate, it will drive the fastener 34 to rotate synchronously. The second bearing 35 and the fastener 34 can make the rubber roller 32 rotate while being fixedly connected to the side wall of the cavity 11; the fastener 34 fixes the two ends of the rubber roller 32. When the rubber roller 32 needs to be replaced or maintained, the fastener 34 can be removed; the second bearing 35 and the annular groove 17 are in a fully clamped state to prevent the second bearing 35 from moving during the rotation of the rubber roller 32. The annular groove 17 can hide the second bearing 35 and the fastener 34 to avoid exposure and interference with other structures, thereby improving the stability of the stripping component 3.

[0044] See also Figure 4 In one embodiment of the utility model, an isolating ring block 18 is formed between each annular groove 17 and a receiving groove 16. The first bearing 33 can move freely within a certain range in the height direction of the side wall of the receiving cavity 11, while the second bearing 35 is clamped in the receiving groove 16 and cannot move. The isolating ring block 18 separates the annular groove 17 and the receiving groove 16 so that the first bearing 33 and the second bearing 35 do not interfere with each other. The isolating ring block 18 can reduce the direct contact between the first bearing 33 and the second bearing 35, thereby reducing the transmission of vibration and noise.

[0045] See also Figure 3 In one embodiment of the utility model, the peeling component 3 also includes a transmission member 36, the transmission member 36 includes a driving wheel 361, a driven wheel 362 and a synchronous belt 363, the driving member 31 is accommodated in the cavity 11, and the output end of the driving member 31 is movably arranged on a side wall of the cavity 11, the driving wheel 361 is sleeved on the output end of the driving member 31, the driven wheel 362 is connected to one of the rubber rollers 32, and the synchronous belt 363 is connected to the driving wheel 361 and the driven wheel 362; the polarizer tearing device 100 also includes a protective cover 6, the protective cover 6 is covered on the transmission member 36, and is connected to the base 1. The driving member 31 drives the driving wheel 361 to rotate, and the driving wheel 361 drives the synchronous belt 363 to rotate, thereby driving the driven wheel 362 and a rubber roller 32 to rotate, so that the rubber roller 32 rolls and drives the polarizer to be torn off. The setting of the transmission member 36 can ensure that the power is transmitted from the driving member 31 to the rubber roller 32, and at the same time can control and adjust the speed, torque and position during the transmission process, so as to achieve precise motion control and energy transmission; the protective cover 6 can prevent outsiders from accidentally touching the transmission member 36, and protect the transmission member 36 to extend its service life.

[0046] See also Figure 1 In one embodiment of the utility model, the stripping assembly 3 further includes a first control button 37 and a second control button 38 disposed on the base 1, and the first control button 37 and the second control button 38 are both electrically connected to the driving member 31. The first control button 37 and the second control button 38 respectively control the forward rotation and reverse rotation of the driving member 31. When an emergency occurs, the second control button 38 is controlled to withdraw the unfinished polarizer product, thereby improving the safety of the device.

[0047] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A polarizer tearing device, characterized in that: include: A base, wherein the base is provided with a cavity and a tearing channel, and the tearing channel passes through an outer top wall of the base and a top wall of the cavity; A stripping knife, the stripping knife is arranged on the inner side wall of the tearing channel, and the blade head of the stripping knife faces and extends to the opening of the tearing channel away from the cavity; as well as, The peeling assembly includes a driving member and two rubber rollers, the two ends of each rubber roller are respectively rotatably connected to the two side walls of the cavity, a clamping interval corresponding to the tearing channel and used to clamp the polarizer is formed between the two rubber rollers, and the output end of the driving member is connected to one of the rubber rollers.

2. The polarizer tearing device according to claim 1, characterized in that: A discharge port communicating with the outside is formed on the side wall of the cavity, and at least a portion of the discharge port is opened below the two rubber rollers.

3. The polarizer tearing device according to claim 2, characterized in that: The polarizer tearing device includes an anti-sticking guide plate, the two sides of the anti-sticking guide plate are respectively connected to the two side walls of the cavity, the bottom wall of the anti-sticking guide plate is connected to the bottom wall of the cavity, and is obliquely arranged below the clamping interval.

4. The polarizer tearing device according to claim 1, characterized in that: The polarizer tearing device comprises a heating element, and the heating element is arranged on the top wall of the cavity.

5. The polarizer tearing device according to claim 4, characterized in that: The heating element comprises a heating plate and a plurality of heating tubes. The heating plate is arranged on the top wall of the cavity. The plurality of heating tubes are arranged in the heating plate at intervals along the width direction of the heating plate.

6. The polarizer tearing device according to claim 1, characterized in that: The base includes a pedestal and a carrying platform, the pedestal and the carrying platform are combined to form the cavity, and the carrying platform is provided with the tearing channel; an avoidance groove and an arc groove are formed on the side of the carrying platform facing the pedestal, one of the rubber rollers is accommodated in the avoidance groove, and the arc groove and the stripping knife are combined to avoid the other rubber roller.

7. The polarizer tearing device according to claim 1, characterized in that: The two rubber rollers are each provided with a plurality of spacing grooves along the length direction of the rubber rollers, and any two adjacent spacing grooves along the width direction of the rubber rollers are staggered.

8. The polarizer tearing device according to claim 1, characterized in that: The stripping assembly includes four first bearings, and two side walls of the cavity are spaced apart to form two receiving grooves with openings. Two first bearings are respectively sleeved on both ends of the rubber roller along the length direction of the rubber roller, and each first bearing is accommodated in one of the receiving grooves.

9. The polarizer tearing device according to claim 8, characterized in that: The stripping assembly further includes three fasteners and four second bearings, two of the second bearings are respectively sleeved on both ends of the rubber roller along the length direction of the rubber roller, and each of the fasteners is penetrated through the second bearing and the side wall of the cavity to be connected to one end of the rubber roller; Two annular grooves are arranged at intervals on both side walls of the cavity, each annular groove corresponds to one of the cavity and is connected to each other, and each of the second bearings is accommodated in one of the annular grooves.

10. The polarizer tearing device according to claim 1, characterized in that: The stripping assembly further includes a transmission member, which includes a driving wheel, a driven wheel and a synchronous belt. The driving member is accommodated in the cavity, and the output end of the driving member is movably arranged on a side wall of the cavity. The driving wheel is sleeved on the output end of the driving member, and the driven wheel is connected to one of the rubber rollers. The synchronous belt transmission connects the driving wheel and the driven wheel. The polarizer tearing device also includes a protective cover, which is disposed on the transmission member and connected to the base.

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