Polarizer attaching device

Abstract

The invention provides a polaroid attaching device which comprises an attaching rack, a horizontal moving platform is arranged in the middle of an attaching machine, a lifting platform is arranged on the horizontal moving platform, an attaching platform is arranged on the lifting platform, a vacuum adsorption hole is formed in the attaching platform, and a mechanical adsorption arm is arranged on the upper side of the attaching rack. The mechanical adsorption arm comprises a mechanical adsorption arm support with one end fixedly connected with the attachment rack and a tail end execution assembly with the other end matched with the horizontal moving platform, an adsorption plate is arranged at one end of the tail end execution assembly, an adsorption hole is formed in the side, away from the tail end execution assembly, of the adsorption plate, and an image processing assembly is arranged on the mechanical adsorption arm support. A compression roller mechanism and a dust removal mechanism are arranged on the attaching rack. The polaroid attaching device is provided with the dust removal mechanism and the compression roller mechanism, dust removal is conducted on the polaroids and the glass substrate through the dust removal mechanism, meanwhile, the function of sequentially attaching the polaroids is achieved in cooperation with the compression roller mechanism, and the problem that bubbles are generated in overall attaching is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal displays, and in particular to a polarizer attaching device. Background Art

[0002] The existing polarizer attachment methods are: the first type uses pure manual attachment, the attachment position is determined by the naked eye, and then the entire polarizer is attached to the glass substrate manually; the second type uses a polarizer attachment machine to attach the polarizer using an upper pressing plate, the glass substrate is attached using a lower pressing plate, and then the upper pressing plate is pressed downward to attach the entire polarizer to the glass substrate. These two methods are prone to bubbles during the polarizer attachment process, and the attachment positioning accuracy is low, and the efficiency is not high. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a polarizer attaching device, aiming to solve the technical problems described in the background technology.

[0004] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0005] A polarizer attaching device comprises an attaching frame, a horizontal moving platform is provided in the middle of the attaching frame, a lifting platform is provided on the horizontal moving platform, an attaching platform is provided on the lifting platform, a vacuum adsorption hole is provided on the attaching platform, a mechanical adsorption arm is provided on the upper side of the attaching frame, the mechanical adsorption arm comprises a mechanical adsorption arm bracket fixedly connected to the attaching frame at one end, and an end execution component which cooperates with the horizontal moving platform at one end away from the mechanical adsorption arm bracket, an adsorption plate is provided at one end of the end execution component, and adsorption holes are provided on the side of the adsorption plate away from the end execution component, an image processing component is provided on the mechanical adsorption arm bracket, a pressing roller mechanism which cooperates with the attaching platform for attaching the polarizer is provided on the attaching frame, and a dust removal mechanism is provided on the attaching frame, and the dust removal mechanism is located between the mechanical adsorption arm bracket and the pressing roller mechanism.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a horizontal moving platform, a lifting platform, and a mechanical adsorption arm on a belt on an attachment frame, and arranging an adsorption plate with vacuum adsorption holes and an attachment platform on the lifting platform and the mechanical adsorption arm, the material can be absorbed before attachment, and then, under the control of a graphics processing component, the horizontal moving platform, the lifting platform, and the end execution component of the mechanical adsorption arm are controlled to work, so as to achieve precise alignment and improve the attachment accuracy; and by arranging a dust removal mechanism and a pressure roller mechanism on the attachment frame, the dust removal mechanism can be used to remove dust from the surface of the polarizer and the glass substrate before attachment, so as to improve the product yield. In addition, the pressure roller mechanism cooperates with the dust removal mechanism to realize sequential attachment of the polarizer, so as to avoid the problem of bubbles easily generated when the entire polarizer is directly attached.

[0007] According to one aspect of the above technical solution, a material box for storing polarizers and glass substrates is provided on one side of the attachment rack close to the mechanical adsorption arm bracket.

[0008] According to one aspect of the above technical solution, the end execution assembly includes a hydraulic telescopic assembly and an angle steering assembly arranged between the hydraulic telescopic assembly and the adsorption plate.

[0009] According to one aspect of the above technical solution, the lifting platform includes an upper support plate and a lower support plate, and a lifting bracket arranged between the upper support plate and the lower support plate, the upper support plate is provided with a telescopic boss, the telescopic boss is located in the middle of the attachment platform, the lower support plate is provided with a first driving component for driving the lifting bracket, the first driving component includes a first motor and a double-screw screw.

[0010] According to one aspect of the above technical solution, two flipping mechanisms are symmetrically arranged on both sides of the inner wall of the attachment frame close to the mechanical adsorption arm bracket and the pressure roller mechanism, and the flipping mechanism includes a telescopic rod, a flipping motor, and a pressure clamp connected in sequence, and a second drive assembly is provided at the end of the telescopic rod away from the flipping motor, and the second drive assembly is used to drive the flipping mechanism to move horizontally, and a discharge port is opened on the side of the attachment frame close to the second drive assembly.

[0011] According to one aspect of the above technical solution, the pressure roller mechanism includes a pressure roller body and a pressure roller bracket for supporting the pressure roller body, and the pressure roller mechanism also includes a third driving component for driving the pressure roller bracket.

[0012] According to one aspect of the above technical solution, a pressure spring is provided between the pressure roller bracket and the third driving assembly, and the pressure roller bracket is sleeved on the third driving assembly.

[0013] According to one aspect of the above technical solution, the dust removal mechanism includes a dust removal roller body and a dust removal roller bracket for supporting the dust removal roller body, and the dust removal mechanism also includes a fourth drive component arranged on the attachment frame for driving the dust removal roller bracket, and the fourth drive component is rotatably connected to the dust removal roller bracket.

[0014] According to one aspect of the above technical solution, a vacuum adsorption hole is provided on the dust removal roller body, and the dust removal roller body is connected to the dust removal roller bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a polarizer attaching device according to an embodiment of the present invention;

[0016] Figure 2It is a structural schematic diagram of a horizontal moving platform in one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a mechanical adsorption arm in one embodiment of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a dust removal mechanism in one embodiment of the present invention;

[0019] Figure 5 It is a structural schematic diagram of a pressing roller mechanism in one embodiment of the present invention;

[0020] Figure 6 This is a structural schematic diagram of a lifting platform according to an embodiment of the present invention;

[0021] Figure 7 It is a structural schematic diagram of a turning mechanism in one embodiment of the present invention;

[0022] Figure 8 for Figure 7 Enlarged view of part A in the middle;

[0023] Description of main component symbols:

[0024] 1-attachment frame, 11-discharging port;

[0025] 2-horizontal moving platform, 21-fifth screw rod, 22-fifth polished rod, 23-fifth motor, 24-sixth screw rod, 25-sixth polished rod, 26-sixth motor, 27-gear assembly, 28-table;

[0026] 3-lifting platform, 31-upper support plate, 32-lower support plate, 33-lifting bracket, 34-first drive assembly, 341-first motor, 342-double screw rod, 35-telescopic boss, 351-rubber pad;

[0027] 4-Attachment platform;

[0028] 5-mechanical adsorption arm, 51-mechanical adsorption arm bracket, 52-second motor, 53-support arm, 54-end execution assembly, 541-hydraulic telescopic assembly, 542-angle steering assembly;

[0029] 6- Adsorption plate;

[0030] 7- Image processing component;

[0031] 8-pressing roller mechanism, 81-pressing roller body, 82-pressing roller bracket, 83-pressure spring, 84-third driving assembly;

[0032] 9-dust removal mechanism, 91-dust removal roller body, 92-dust removal roller bracket, 93-fourth driving assembly, 931-fourth screw rod, 932-screw rod nut;

[0033] 10- flipping mechanism, 101- telescopic rod, 102- flipping motor, 103- pressure clamping claw, 104- second driving assembly;

[0034] 11-Material box;

[0035] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] See also Figure 1 to Figure 2 A polarizer attaching device provided by an embodiment of the present invention comprises an attaching frame 1, a horizontal moving platform 2 is provided in the middle of the attaching frame 1, a lifting platform 3 is provided on the horizontal moving platform 2, an attaching platform 4 is provided on the lifting platform 3, a vacuum adsorption hole is provided on the attaching platform 4, a mechanical adsorption arm 5 is provided on the upper side of the attaching frame 1, the mechanical adsorption arm 5 comprises a mechanical adsorption arm bracket 51 fixedly connected to the attaching frame 1 at one end, and an end execution component 54 cooperating with the horizontal moving platform 2 at one end away from the mechanical adsorption arm bracket 51, an adsorption plate 6 is provided at one end of the end execution component 54, and adsorption holes are provided on the side of the adsorption plate 6 away from the end execution component 54, an image processing component 7 is provided on the mechanical adsorption arm bracket 51, a pressing roller mechanism 8 cooperating with the attaching platform 4 for attaching the polarizer is provided on the attaching frame 1, a dust removal mechanism 9 is provided on the attaching frame 1, and the dust removal mechanism 9 is located between the mechanical adsorption arm bracket 51 and the pressing roller mechanism 8.

[0040] Furthermore, a material box 11 for storing polarizers and glass substrates is provided on one side of the mechanical adsorption arm bracket 51 .

[0041] See also Figure 7 Specifically, the horizontal moving platform 2 includes an x-axis component for x-direction movement control, and a y-axis component installed on the x-axis component, wherein the x-axis component includes a fifth screw rod 21 and two fifth light rods 22, and a fifth motor 23 is connected to one end of the fifth screw rod 21. The fifth motor 23 drives the fifth screw rod 21 to rotate, so that the y-axis component can move in the x-direction; the y-axis component includes a table 28, and a sixth screw rod 24 and two sixth light rods 25 installed on the table. In this embodiment, a sixth motor 26 for controlling the sixth screw rod 24 is also installed on the table, wherein the sixth motor 26 drives the sixth screw rod 24 through a gear assembly 27 steering transmission. The y-axis component can directly drive the lifting platform 3 installed on its upper end to move in the y-direction. Through the cooperation of the x-axis component and the y-axis component, the lifting platform 3 can realize the free movement function in the horizontal direction.

[0042] See also Figure 2 In this embodiment, the attachment frame 1 is a frame with a hollowed-out middle, wherein the horizontal moving platform 2 is located inside the attachment frame 1 and is arranged near the lower end. The horizontal moving platform 2 is fixed to the attachment frame 1 through a fifth screw rod 21 and two fifth light rods 22, and a lifting platform 3 is arranged on the horizontal moving platform 2. The lifting platform 3 is freely moved in the horizontal direction under the drive of the horizontal moving platform 2, so that the glass substrate adsorbed on the attachment platform 4 can be freely moved in the horizontal direction. In this embodiment, as shown in FIG3, the mechanical adsorption arm 5 located at the upper end of the lifting platform 3 includes a fixed A mechanical adsorption arm bracket 51 connected to the attachment frame 1, and a support arm 53 with one end rotatably connected to the mechanical adsorption arm bracket 51, a second motor 52 for driving the support arm 53 to rotate is installed at the lower end of the mechanical adsorption arm bracket 51, and an end-actuator assembly 54 is provided at the other end of the support arm 53, the end-actuator assembly 54 includes a hydraulic telescopic assembly 541, and an angle steering assembly 542 arranged between the hydraulic telescopic assembly 541 and the adsorption plate 6, the angle steering assembly 542 can drive the adsorption plate 6 fixed at one end thereof to complete the rotation and pitch angle change. In addition, an image processing assembly 7 is also installed on the mechanical adsorption arm bracket 51, which is used to identify the relative position of the edge of the glass substrate and the polarizer, and analyze the identified position information, control the rotation of the angle steering assembly 542 according to the identified position information, and control the fifth motor 23 and the sixth motor 26 of the horizontal moving platform 2 to work, so that the glass substrate moves to the set position in the horizontal direction, thereby realizing the alignment operation before the polarizer and the glass substrate are attached.

[0043] See also Figure 4 In this embodiment, a dust removal mechanism 9 is installed on the attachment frame 1, and the dust removal mechanism 9 includes a dust removal roller body 91 and a dust removal roller bracket 92 for supporting the dust removal roller body 91. The dust removal mechanism 9 also includes a fourth driving component 93 arranged on the attachment frame 1 for driving the dust removal roller bracket 92. The fourth driving component 93 is fixedly connected to the dust removal roller bracket 92, and the fourth screw 931 is driven to rotate by the motor in the fourth driving component 93, thereby driving the screw nut 932 to move, and then driving the dust removal roller bracket 92 and the dust removal roller body 91 to move. Further, the dust removal roller body 91 A vacuum adsorption hole is provided on the dust removal roller body 91, and the dust removal roller body 91 is fixedly connected to the dust removal roller bracket 92; it can be understood that when the dust removal roller removes dust from the glass substrate and the polarizer, the dust is adsorbed and removed by the vacuum adsorption holes of the dust removal roller body 91, rather than by friction dust removal; it should also be noted that during the dust removal process on the surface of the glass substrate and the polarizer, the dust removal roller body 91 is either spaced apart from the surface of the glass substrate and the polarizer and adsorbs dust by adsorption force, or is in direct contact with the glass substrate and the polarizer and then adsorbs and removes dust. In the present embodiment, dust removal is performed by using a spaced distance, which has a better dust removal effect and is not cost-effective for the glass substrate.

[0044] See also Figure 5 In this embodiment, a pressure roller mechanism 8 is also provided on the attachment frame 1, and the pressure roller mechanism 8 includes a pressure roller body 81 and a pressure roller bracket 82 for supporting the pressure roller body 81. The pressure roller mechanism 8 also includes a third driving component 84 for driving the pressure roller bracket 82. Specifically, the third driving component 84 is arranged inside the attachment frame 1 and is located directly below the fourth driving component 93; it should be noted that the pressure roller body 81 is made of flexible material to avoid stress damage to the glass substrate during the attachment process; the pressure roller body 81 is rotatably connected to the pressure roller bracket 82 to reduce the friction between the pressure roller body 81 and the polarizer. In addition, when the pressure roller body 81 and the dust removal roller body 91 are in a non-working state, the lowest positions of the lower ends of the pressure roller body 81 and the dust removal roller body 91 are at the same height, and both are located on the side of the attachment frame 1 away from the mechanical adsorption arm 5.

[0045] In this embodiment, in order to prevent the pressure of the pressure roller mechanism 8 from being too high or too low during the attachment process, thereby affecting the final attachment effect of the polarizer, a pressure spring 83 is installed at the connection between the pressure roller bracket 82 and the third driving assembly 84, and the attachment pressure of the pressure roller body 81 is automatically changed by the pressure spring 83; preferably, a pressure spring 83 is provided between the pressure roller bracket 82 and the third driving assembly 84, and the pressure roller bracket 82 is sleeved on the third driving assembly 84.

[0046] See also Figure 6Further, the lifting platform 3 includes an upper support plate 31 and a lower support plate 32, and a lifting bracket 33 arranged between the upper support plate 31 and the lower support plate 32, the upper support plate 31 is provided with a telescopic boss 35, the telescopic boss 35 is arranged in the middle of the attachment platform 4, and the lower support plate 32 is provided with a first driving component 34 for driving the lifting bracket 33, the first driving component 34 includes a first motor 341 and a double screw 342. By setting the lifting platform 3, the distance between the attachment platform 4 and the adsorption plate 6 can be changed, so as to facilitate the attachment of polarizers of glass substrates of different thicknesses, and after the lifting platform 3 is fully retracted, the glass substrate has enough space for flipping operation; in addition, the telescopic boss 35 is arranged on the upper support plate 31 for lifting the glass substrate, so that the glass substrate is suspended around, which is convenient for the clamping of the flipping mechanism 10, and in addition, in order to improve the stability of the glass substrate after lifting, the end surface of the telescopic boss 35 is installed with a rubber pad 351 with a large friction coefficient.

[0047] See also Figure 7 and Figure 8 , further, two flipping mechanisms 10 are symmetrically arranged on both sides of the inner wall of the attachment frame 1 near the mechanical adsorption arm bracket 51 and the pressure roller mechanism 8, and the flipping mechanism 10 includes a telescopic rod 101, a flipping motor 102, and a pressure clamp 103 connected in sequence, and the telescopic rod 101 is provided with a second drive component 104 at one end away from the flipping motor 102, and the second drive component 104 is used to drive the flipping mechanism 10 to move horizontally, and the attachment frame 1 is provided with a discharge port 11 on the side close to the second drive component 104. It should be noted that in order to ensure that the flipping mechanism 10 can normally flip over after clamping the glass substrate, the flipping mechanism 10 is located at the middle position between the highest position when the lifting platform 3 is completely retracted and the upper surface of the attachment frame 1, and the middle position in the width direction of the attachment frame 1. In addition, since the discharge port 11 is used for the glass substrate to be attached with the polarizer, the flipping mechanism 10 sends the finished product out from the discharge port 11 end, it can be understood that the horizontal center axis of the discharge port 11 and the horizontal movement direction of the flipping mechanism 10 are in the same horizontal plane.

[0048] Working process:

[0049] The polarizer and the glass substrate are placed in the corresponding compartments of the material box 11 in advance. Then, the second motor 52 on the mechanical adsorption arm 5 drives the support arm 53 to rotate. First, the end execution component 54 rotates to the space above the glass substrate. At this time, the angle steering component 542 rotates horizontally to align the adsorption plate 6 with the positive direction of the glass substrate. Then, the adsorption function of the adsorption plate 6 is started, and the hydraulic telescopic component 541 is extended to push the adsorption plate 6 into the material box 11 to adsorb the glass substrate. After the adsorption and removal of the glass substrate is completed and the hydraulic telescopic component 541 is retracted at the same time, the second motor 52 drives the support arm 53 to rotate, so that the glass substrate is The glass substrate comes to the top of the lifting platform 3 that has been waiting in advance. Then, the hydraulic telescopic component 541 extends out to place the glass substrate adsorbed by the adsorption plate 6 on the attachment platform 4 of the lifting platform 3. Then the attachment platform 4 turns on the vacuum adsorption function to firmly adsorb the glass substrate and remove some dust on the glass substrate. Then, the mechanical adsorption arm 5 enters the next polarizer adsorption procedure. The adsorption operation is the same as that of the glass substrate. It should be noted that in this process, when the adsorption plate 6 leaves the glass substrate, the graphic processing component identifies and records the relative position of the edge of the attachment platform 4 and the glass substrate. When the adsorption plate 6 leaves the glass substrate, the graphic processing component identifies and records the relative position of the edge of the glass substrate. After the polarizer is sucked and brought to the upper end of the attachment platform 4, the graphics processing component identifies and records the relative position of the polarizer and the adsorption plate 6, and then controls the horizontal rotation of the angle steering component 542 and the horizontal movement of the horizontal moving platform 2 through two comparative calculations, so that the polarizer and the glass substrate are precisely aligned in the vertical space. Then, the dust removal roller mechanism is started, and the dust removal roller body 91 is driven by the third driving component 84 to roll between the polarizer and the glass substrate, and dust is removed from the surfaces of both through the vacuum adsorption holes. After completing the dust removal procedure, the third driving component 84 drives the dust removal roller body 91 to stay close to the glass substrate. Towards the position of one end of the pressing roller mechanism 8, then, the angle steering component 542 adjusts the inclination angle of the polarizer so that the edge of the polarizer close to one end of the pressing roller mechanism 8 is aligned with the edge of the opposite end of the glass substrate, and then the pressing roller mechanism 8 is started. When the pressing roller body 81 is pressed to one end of the polarizer, the adsorption function of the adsorption plate 6 is turned off. At this time, the polarizer naturally falls on the dust removal roller body 91. Then, the dust removal roller body 91 and the pressing roller body 81 are driven by the fourth driving component 93 and the third driving component 84 to synchronously move toward one end of the mechanical adsorption arm bracket 51 to realize the sequential attachment function to avoid the situation where bubbles grow inside the overall attachment;After one side of the adhesive is completed, the lifting platform 3 is retracted downwards. At the same time, the dust removal mechanism 9 and the pressure roller mechanism 8 begin to return to their initial positions. When the glass substrate drops to the same height as the flip mechanism 10, the dust removal mechanism 9 and the pressure roller mechanism 8 return to their initial positions. Then, the telescopic boss 35 extends in to lift the glass substrate up and suspend it in the air. Then, the telescopic rod 101 of the flip mechanism 10 extends out to drive the pressure clamping jaws 103 to approach the edge of the glass substrate. When the pressure clamping jaws 103 on both sides clamp the glass substrate, the telescopic boss 35 and the lifting platform 3 are retracted at the same time until the two are completely retracted. The flip motor 102 works to flip the glass substrate 180°. Then, the telescopic boss 35 and the lifting platform 3 are extended at the same time to catch the glass substrate. The telescopic rod 101 is recovered to complete the flipping operation of the glass substrate. Then, the operation of the next side of the glass substrate is continued. After the polarizers on the two sides of the glass substrate are attached, the glass substrate is lowered along with the lifting platform 3 and finally clamped by the pressure clamp 103. Finally, the second driving component 104 is started to drive the flip mechanism 10 to move toward the discharge port 11, and the attached glass substrate is sent out of the attachment rack 1 from the discharge port 11 to complete the attachment operation. ;

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A polarizer attaching device, characterized in that: It includes an attaching frame, a horizontal moving platform is provided in the middle of the attaching frame, a lifting platform is provided on the horizontal moving platform, an attaching platform is provided on the lifting platform, a vacuum adsorption hole is provided on the attaching platform, a mechanical adsorption arm is provided on the upper side of the attaching frame, the mechanical adsorption arm includes a mechanical adsorption arm bracket fixedly connected to the attaching frame at one end, and an end execution component which cooperates with the horizontal moving platform at one end away from the mechanical adsorption arm bracket, an adsorption plate is provided at one end of the end execution component, and adsorption holes are provided on the side of the adsorption plate away from the end execution component, an image processing component is provided on the mechanical adsorption arm bracket, a pressing roller mechanism which cooperates with the attaching platform for attaching polarizer is provided on the attaching frame, and a dust removal mechanism is provided on the attaching frame, and the dust removal mechanism is located between the mechanical adsorption arm bracket and the pressing roller mechanism.

2. The polarizer attaching device according to claim 1, characterized in that: A material box for storing polarizers and glass substrates is provided on one side of the attachment frame close to the mechanical adsorption arm support.

3. The polarizer attaching device according to claim 1, characterized in that: The end-actuating assembly includes a hydraulic telescopic assembly and an angle steering assembly arranged between the hydraulic telescopic assembly and the adsorption plate.

4. The polarizer attaching device according to claim 1, characterized in that: The lifting platform includes an upper support plate and a lower support plate, and a lifting bracket arranged between the upper support plate and the lower support plate, the upper support plate is provided with a telescopic boss, the telescopic boss is located in the middle of the attachment platform, the lower support plate is provided with a first driving component for driving the lifting bracket, the first driving component includes a first motor and a double-screw screw.

5. The polarizer attaching device according to claim 1, characterized in that: Two flipping mechanisms are symmetrically arranged on both sides of the inner wall of the attachment frame near the mechanical adsorption arm bracket and the pressure roller mechanism, and the flipping mechanism includes a telescopic rod, a flipping motor, and a pressure clamp connected in sequence. A second driving assembly is provided at the end of the telescopic rod away from the flipping motor, and the second driving assembly is used to drive the flipping mechanism to move horizontally. A discharge port is opened on the side of the attachment frame close to the second driving assembly.

6. The polarizer attaching device according to claim 1, characterized in that: The pressure roller mechanism includes a pressure roller body and a pressure roller bracket for supporting the pressure roller body. The pressure roller mechanism also includes a third driving component for driving the pressure roller bracket.

7. The polarizer attaching device according to claim 6, characterized in that: A pressure spring is provided between the pressure roller bracket and the third driving assembly, and the pressure roller bracket is sleeved on the third driving assembly.

8. The polarizer attaching device according to claim 1, characterized in that: The dust removal mechanism includes a dust removal roller body and a dust removal roller bracket for supporting the dust removal roller body. The dust removal mechanism also includes a fourth drive component arranged on the attachment frame for driving the dust removal roller bracket, and the fourth drive component is rotatably connected to the dust removal roller bracket.

9. The polarizer attaching device according to claim 8, characterized in that: The dust removal roller body is provided with a vacuum adsorption hole, and the dust removal roller body is connected to the dust removal roller bracket.

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