A polarizing sheet positioning and attaching device

Abstract

The application discloses a polaroid positioning and attaching device and relates to the technical field of polaroids. The application comprises a device main body, the top of the device main body is fixed with a rack, a material taking device is arranged at the rack, the material taking device comprises a threaded rod rotatably arranged on one side of the top of the rack, a long column fixed on the other side of the top of the rack, the threaded rod is driven by a motor, a displacement plate is threadedly connected to the outer portion of the threaded rod, the displacement plate is slidingly arranged on the outer portion of the long column, a hydraulic cylinder is fixed on the top of the displacement plate, a cross plate is fixed on the bottom of the telescopic end of the hydraulic cylinder, and a suction assembly is arranged at the cross plate. The positioning device is arranged, the liquid crystal screen at the liquid crystal screen positioning assembly on the opposite side of the baffle is clamped and positioned, the deviation caused by the inertia or gap of the guide roller and the short roller is eliminated, and the liquid crystal screen is ensured to be below the polaroid sucked by the suction plate.

Description

Technical Field

[0001] This invention relates to the field of polarizer technology, specifically to a polarizer positioning and attachment device. Background Technology

[0002] A polarizer is an optical material that improves image quality and reduces reflection by selectively filtering the polarization direction of light. It is widely used in LCD screens, photography, optical instruments, and protective eyewear. In the back-end manufacturing process of LCD screens, polarizers need to be attached to a glass substrate that already has a flexible circuit board attached.

[0003] Chinese patent CN210015305U discloses a device for automatically positioning and attaching polarizers, which improves work efficiency. The key technical point is a polarizer positioning and attaching device comprising a base, a first support plate and a second support plate fixedly connected to the base, a third support plate fixedly connected between the first and second support plates, a sliding plate fixedly connected to the third support plate, a limiting block fixedly connected inside the third support plate for limiting the sliding plate, a first cylinder and a second cylinder fixedly connected to the sliding plate, a fixing block fixedly connected to the output shaft of the first and second cylinders, a polarizer adsorption plate on the fixing block, a glass adsorption plate on the base, and rollers on the glass adsorption plate for pressing the polarizer onto the glass. This mechanism achieves automatic positioning and attaching of polarizers, thus improving work efficiency.

[0004] However, the current positioning and attaching device has the following problems: when attaching the polarizer to the LCD screen, it is not convenient to position the LCD screen, which can easily lead to positional deviation of the polarizer during attachment. In this case, the optical performance of the polarizer will be affected, resulting in a decrease in image quality. Therefore, we propose a polarizer positioning and attaching device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a polarizer positioning and attachment device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polarizer positioning and attaching device, comprising a device body, a frame fixed to the top of the device body, a material picking device provided at the frame, the material picking device comprising a threaded rod rotatably mounted on one side of the top of the frame and a long column fixed to the other side of the top of the frame, the threaded rod being driven by a motor, a displacement plate being threadedly connected to the external thread of the threaded rod, and the displacement plate being slidably mounted on the outside of the long column, a hydraulic cylinder being fixed to the top of the displacement plate, a cross plate being fixed to the bottom of the telescopic end of the hydraulic cylinder, an adsorption component being provided at the cross plate, and geometric rods being fixed to both sides of the top of the cross plate, a positioning device being provided inside the device body, the positioning device comprising a side positioning component provided at the device body and a component fixed to the mounting plate. A base plate is placed at the bottom of the inner wall of the main body. Two elastic telescopic rods are fixed to the top of the base plate on both sides. A U-shaped column is fixed between the bottom of the telescopic ends of the two elastic telescopic rods. Hollow boxes are slidably installed on both sides of the top of the base plate. A baffle is slidably installed through the top of each hollow box. A wave-shaped spring is provided between the baffle and the bottom of the inner wall of the hollow box. A square top rod is fixed to the side of each hollow box that is close to each other. A slider is slidably installed on the outside of the square top rod. A spring is provided between the slider and the square top rod. The outer wall of the slider is hinged to the U-shaped column via a hinge rod. A compression plate is fixed between the bottom of the telescopic ends of the two elastic telescopic rods. A folding bladder is fixed between the bottom of the compression plate and the top of the base plate. The folding bladder is connected to the hollow box via a flexible tube.

[0007] According to the above technical solution, several guide rollers are rotatably installed on both sides of the inner side of the main body of the device, and several short rollers are rotatably installed on both sides of the middle part of the main body of the device via brackets. A feeding platform is fixed on one side of the frame.

[0008] According to the above technical solution, the adsorption assembly includes a T-shaped rod that runs vertically through and slides on the top of the cross plate, a connecting rod fixed to the bottom of the cross plate, and a vacuum pump fixed to the top of the displacement plate. A counterweight is fixed to the top of the T-shaped rod, and an adsorption plate is hinged to the bottom of the connecting rod. A U-shaped limiting rod is fixed to the top of the adsorption plate on the side away from the connecting rod. The bottom of the T-shaped rod is slidably installed inside the U-shaped limiting rod. The adsorption plate and the vacuum pump are connected by a flexible hose.

[0009] According to the above technical solution, the side positioning component includes a bidirectional screw rotatably installed inside the main body of the device and a sliding column fixed inside the main body of the device. Both sides of the outer wall of the bidirectional screw are threadedly connected to driving blocks. Both sides of the outer wall of the sliding column are slidably installed with another driving block. A U-shaped shell is fixed between the tops of the two driving blocks. A conveyor belt assembly is arranged inside the U-shaped shell.

[0010] According to the above technical solution, the top of the telescopic end of the elastic telescopic rod is located on the movement trajectory of the geometric rod.

[0011] According to the above technical solution, the top of the feeding platform is provided with four sliding grooves, and an alignment device is provided at the feeding platform. The alignment device includes a U-shaped sliding rod that passes through and is slidably installed at the bottom of the feeding platform, and four L-shaped clamps that are slidably installed inside the four sliding grooves respectively. A spring is provided between the U-shaped sliding rod and the bottom of the feeding platform. The bottom of the U-shaped sliding rod is cross-shaped. A second slider is slidably installed on the outside of the horizontal support of the L-shaped clamp, and a spring is provided between the second slider and the outer wall of the horizontal support of the L-shaped clamp. The outer wall of the second slider and the outer wall of the U-shaped sliding rod are hinged together by a second hinge rod.

[0012] According to the above technical solution, the top of the vertical support of the U-shaped slide bar is located on the movement trajectory of the geometric rod.

[0013] According to the above technical solution, a roller pressing device is provided on the top side of the main body of the device. The roller pressing device includes two slide plates that are slidably installed on both sides of the main body of the device and a T-shaped column that is slidably installed on the outer wall of the frame. The T-shaped column is located on the movement trajectory of the cross plate. An elastic telescopic rod II is fixed at the bottom of the slide plate. The telescopic end of the elastic telescopic rod II extends vertically through the bottom of the slide plate. A pressure roller is rotatably installed between the tops of the telescopic ends of the two elastic telescopic rod II. The sides of the tops of the telescopic ends of the two elastic telescopic rod II that are far apart from each other are both hinged to the outer wall of the T-shaped column through a hinge rod III.

[0014] This invention provides a polarizer positioning and attachment device. It has the following advantages: (1) The present invention, through the setting of the positioning device, enables the baffle to clamp and position the liquid crystal screen at the side positioning component, thereby eliminating the offset caused by the inertia or gap of the guide roller and short roller, ensuring that the liquid crystal screen is directly below the polarizer adsorbed by the adsorption plate, and locking the position of the liquid crystal screen panel before the polarizer contacts the liquid crystal screen, avoiding the slight movement of the liquid crystal screen when the polarizer is pressed down, reducing poor bonding such as misalignment, bubbles, and angle deviation; at the same time, when the baffle abuts against the liquid crystal screen and the telescopic end of the elastic telescopic rod continues to drive the return column downward, the return During the displacement of the slider by the hinge rod, the spring between the slider and the square top rod is compressed, thus avoiding the problem of the baffle hitting the LCD screen hard and causing damage to the LCD screen. By using a counterweight on the adsorption plate to keep the adsorbed polarizer in an inclined position, the gradual contact and air venting during the bonding process can be achieved from one end to the other. This can effectively eliminate interface air, reduce bubbles and wrinkles, and reduce bonding impact misalignment. At the same time, the tilting is achieved by its own weight, which is simple and reliable, and significantly improves the polarizer bonding yield.

[0015] (2) By setting up the alignment device, the present invention enables the L-shaped rod, U-shaped slide rod, hinge rod 2 and slider 2 to work together to drive the L-shaped clamping plate to clamp and position the polarizer on the feeding table, thereby ensuring that the polarizer is accurately positioned and without deviation when it is adsorbed. In addition, the spring force between slider 2 and L-shaped clamping plate can prevent the polarizer from being pinched and damaged, effectively improving the attachment alignment accuracy and equipment reliability.

[0016] (3) By setting up the roller pressing device, the cross plate, T-shaped column rod, hinge rod three and elastic telescopic rod two work together to drive the pressure roller to perform full roller pressing on the surface of the liquid crystal screen, thereby further squeezing out residual trace air and eliminating micro wrinkles, effectively avoiding the edge of the polarizer lifting or secondary contamination, and improving the bonding yield. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire invention. Figure 1 ; Figure 2 This is a schematic diagram of the entire invention. Figure 2 ; Figure 3 This is a schematic diagram of the material handling device of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the material handling device of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the positioning device of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the positioning device of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the alignment device of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the alignment device of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the roller pressing device of the present invention.

[0018] In the diagram: 1. Main body of the device; 11. Guide roller; 12. Short roller; 2. Frame; 21. Feeding platform; 3. Material handling device; 31. Threaded rod; 32. Long column; 33. Displacement plate; 34. Hydraulic cylinder; 35. Vacuum pump; 36. Cross plate; 37. Connecting rod; 38. T-shaped rod; 39. U-shaped limit rod; 310. Counterweight; 311. Adsorption plate; 312. Z-shaped rod; 4. Positioning device; 41. Bidirectional screw; 42. Sliding column; 43. Drive block; 44. U-shaped shell; 45. 46. ​​Conveyor belt assembly; 47. U-shaped column; 48. Slider 1; 49. Hinge rod 1; 40. Square top rod; 411. Baffle; 412. Cavity box; 413. Base plate; 414. Extrusion plate; 415. Folding bag; 416. Elastic telescopic rod 1; 5. Alignment device; 51. U-shaped slide rod; 52. L-shaped clamp; 53. Slider 2; 54. Hinge rod 2; 6. Roller pressing device; 61. T-shaped column rod; 62. Hinge rod 3; 63. Pressure roller; 64. Elastic telescopic rod 2; 65. Slide plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figures 1-9One embodiment of the present invention is: a polarizer positioning and attaching device, comprising a device body 1, a frame 2 fixed to the top of the device body 1, a material picking device 3 provided at the frame 2, the material picking device 3 comprising a threaded rod 31 rotatably mounted on one side of the top of the frame 2, and a long column 32 fixed to the other side of the top of the frame 2, the threaded rod 31 being driven by a motor, a displacement plate 33 being threadedly connected to the outside of the threaded rod 31, and the displacement plate 33 being slidably mounted on the outside of the long column 32, a hydraulic cylinder 34 being fixed to the top of the displacement plate 33, and the telescopic end of the hydraulic cylinder 34 being... A cross plate 36 is fixed at the bottom, and an adsorption component is installed at the cross plate 36. A geometrical rod 312 is fixed to both sides of the top of the cross plate 36. A positioning device 4 is installed inside the main body 1. The positioning device 4 includes a side positioning component installed at the main body 1 and a base plate 412 fixed to the bottom of the inner wall of the main body 1. Elastic telescopic rods 415 are fixed to both sides of the top of the base plate 412. A U-shaped column 46 is fixed between the bottom of the telescopic ends of the two elastic telescopic rods 415. A cavity box 411 is slidably installed on both sides of the top of the base plate 412. A baffle 410 is slidably mounted through the top of box 411. The baffle 410 is located below the top horizontal plane of guide roller 11. A wave-shaped spring is provided between the baffle 410 and the bottom of the inner wall of the cavity box 411. A square top rod 49 is fixed on the side of each of the two cavity boxes 411 that is close to each other. A slider 47 is slidably mounted on the outside of the square top rod 49. A spring is provided between the slider 47 and the square top rod 49. The outer wall of the slider 47 is hinged to the U-shaped column 46 through a hinge rod 48. The bottom of the telescopic ends of the two elastic telescopic rods 415 are fixed together. The extrusion plate 413 has a folded bladder 414 fixed between its bottom and the top of the base plate 412. The folded bladder 414 is connected to the cavity box 411 by a flexible tube. With the above structure, the polarizer adsorbed on the adsorption plate 311 is kept in an inclined position by the counterweight 310. During the attachment, the progressive contact and air venting are achieved from one end to the other. This can effectively remove interfacial air, reduce bubbles and wrinkles, and reduce the impact and misalignment during the attachment. At the same time, the tilting is achieved by its own weight. The structure is simple and reliable, and the polarizer attachment yield is significantly improved.

[0021] Several guide rollers 11 are rotatably mounted on both sides inside the main body 1 of the device. Several short rollers 12 are rotatably mounted on both sides of the middle part of the main body 1 of the device via brackets. A feeding platform 21 is fixed on one side of the frame 2. The guide rollers 11 and short rollers 12 have a power source and can be driven by gear sets.

[0022] The adsorption assembly includes a T-shaped rod 38 that runs vertically through and slides on the top of the cross plate 36, a connecting rod 37 fixed to the bottom of the cross plate 36, and a vacuum pump 35 fixed to the top of the displacement plate 33. A counterweight 310 is fixed to the top of the T-shaped rod 38, and an adsorption plate 311 is hinged to the bottom of the connecting rod 37. A U-shaped limiting rod 39 is fixed to the top of the adsorption plate 311 on the side away from the connecting rod 37. The bottom of the T-shaped rod 38 is slidably installed inside the U-shaped limiting rod 39. The adsorption plate 311 and the vacuum pump 35 are connected by a hose.

[0023] In the above structure, the cavity box 411 will drive the baffle 410 to clamp and position the LCD screen at the side positioning component, thereby eliminating the offset caused by the inertia or gap of the guide roller 11 and the short roller 12, ensuring that the LCD screen is directly below the polarizer adsorbed by the adsorption plate 311, and locking the position of the LCD screen panel before the polarizer contacts the LCD screen, avoiding the slight movement of the LCD screen when the polarizer is pressed down, and reducing poor bonding such as misalignment, bubbles, and angle deviation.

[0024] The side positioning assembly includes a bidirectional screw 41 rotatably installed inside the main body 1 of the device and a sliding column 42 fixed inside the main body 1 of the device. Both sides of the outer wall of the bidirectional screw 41 are threaded with drive blocks 43. Both sides of the outer wall of the sliding column 42 are slidably installed with another drive block 43. A U-shaped shell 44 is fixed between the tops of the two drive blocks 43. A conveyor belt assembly 45 is provided inside the U-shaped shell 44. The top of the telescopic end of the elastic telescopic rod 415 is located on the movement trajectory of the zigzag rod 312. The opening of the zigzag rod 312 is set downward and can accommodate the U-shaped shell 44.

[0025] The top of the feeding platform 21 has four sliding grooves. An alignment device 5 is installed at the feeding platform 21. The alignment device 5 includes a U-shaped sliding rod 51 that passes through and is slidably installed at the bottom of the feeding platform 21, and four L-shaped clamping plates 52 that are slidably installed inside the four sliding grooves respectively. A spring is provided between the U-shaped sliding rod 51 and the bottom of the feeding platform 21. The bottom of the U-shaped sliding rod 51 is cross-shaped. The outer wall of the vertical support rod of the L-shaped clamping plate 52 is smooth. A slider 53 is slidably installed on the outside of the horizontal support rod of the L-shaped clamping plate 52. The slider 53 is in contact with the L-shaped clamping plate 52. A spring is provided between the outer walls of the horizontal support rods. The outer wall of the second slider 53 and the outer wall of the U-shaped slide rod 51 are hinged together by the second hinge rod 54. The top of the vertical support rod of the U-shaped slide rod 51 is located on the movement trajectory of the L-shaped rod 312. With the above structure, the L-shaped clamping plate 52 clamps and positions the polarizer on the feeding table 21, thereby ensuring that the polarizer is accurately positioned and without deviation when it is adsorbed. The spring force between the second slider 53 and the L-shaped clamping plate 52 can prevent the polarizer from being pinched and damaged, effectively improving the attachment alignment accuracy and equipment reliability.

[0026] In use, the operator places the polarizing film on the feeding table 21 and the LCD screen to be attached on the guide roller 11. Under the coordinated action of the guide roller 11 and the short roller 12, the guide roller 11 and the short roller 12 will convey the LCD screen to the side positioning component. The guide roller 11 and the short roller 12 stop conveying the LCD screen, and the threaded rod 31 is driven by the motor to rotate. The threaded rod 31 will drive the displacement plate 33 to move to the position above the feeding table 21. Then, the hydraulic cylinder 34 is activated. The extension end of the hydraulic cylinder 34 drives the adsorption plate through the cross plate 36, connecting rod 37, T-shaped rod 38, U-shaped limit rod 39 and counterweight 310. 311 moves downwards. When the adsorption plate 311 moves above the polarizer, the vacuum pump 35 is activated. The vacuum pump 35 generates negative pressure at the adsorption plate 311 through a hose, causing the adsorption plate 311 to adsorb the polarizer. Then, the extension end of the hydraulic cylinder 34 drives the polarizer upwards through the adsorption plate 311. The threaded rod 31 drives the displacement plate 33 to move above the LCD screen. The hydraulic cylinder 34 is activated again, and its extension end drives the polarizer downwards through the adsorption plate 311. At the same time, the extension end of the hydraulic cylinder 34 pushes the cross plate 36, causing the geometric rod 312 to move downwards as well. When the forming rod 312 moves to the top position of the elastic telescopic rod 415, the forming rod 312 presses the telescopic end of the elastic telescopic rod 415 downward. The elastic telescopic rod 415 drives the extrusion plate 413 to compress the folded bag 414. The air inside the folded bag 414 is transmitted to the cavity box 411 through the hose. The air inside the cavity box 411 pushes the baffle 410 upward. The baffle 410 moves to above the top horizontal plane of the guide roller 11. At the same time, the telescopic end of the elastic telescopic rod 415 drives the loop column 46 downward. The loop column 46 pulls the slider 47 towards the folding position through the hinge rod 48. As the bladder 414 moves, the slider 47 pushes the square top rod 49 via the spring, carrying the cavity box 411 along the top of the base plate 412 toward the folded bladder 414. At this time, the cavity box 411 will drive the baffle 410 to clamp and position the LCD screen at the side positioning component, thereby eliminating the offset caused by the inertia or gap of the guide roller 11 and the short roller 12, ensuring that the LCD screen is directly below the polarizer adsorbed by the adsorption plate 311, and locking the LCD screen panel position before the polarizer contacts the LCD screen, avoiding the slight movement of the LCD screen when the polarizer is pressed down, reducing poor bonding such as misalignment, bubbles, and angle deviation.

[0027] When the baffle 410 presses against the LCD screen and the telescopic end of the elastic telescopic rod 415 continues to drive the U-shaped column 46 to move downward, the U-shaped column 46 pulls the slider 47 to move through the hinge rod 48. During this process, the spring between the slider 47 and the square top rod 49 will be compressed, thereby preventing the baffle 410 from hitting the LCD screen hard and causing damage to the LCD screen.

[0028] It should be noted that when attaching polarizers to LCD screens of different widths, the operator needs to rotate the bidirectional screw 41. Under the coordinated action of the bidirectional screw 41 and the corresponding drive block 43 of the slide column 42, the bidirectional screw 41 and the corresponding drive block 43 of the slide column 42 will drive the two U-shaped shells 44 to move closer or further apart. The U-shaped shells 44 drive the conveyor belt group 45 to move along with them, so that the distance between the two conveyor belt groups 45 is equal to the width of the LCD screen to be attached. The conveyor belt group 45 will restrict the left and right position of the LCD screen.

[0029] It should also be noted that after the adsorption plate 311 adsorbs the polarizer, under the gravity of the counterweight 310, the counterweight 310, along with the T-shaped rod 38, is in a downward position. Since the position of the adsorption plate 311 is restricted by the T-shaped rod 38 and the U-shaped limiting rod 39, the adsorption plate 311 is in an inclined state with the polarizer at this time. Therefore, each time the adsorption plate 311 moves the polarizer to adhere, because the polarizer is inclined, when the polarizer contacts the LCD screen… Only one end contacts the LCD screen first. As the adsorption plate 311 continues to move the polarizer downward, the entire polarizer will gradually adhere to the LCD screen. By using the counterweight 310 on the adsorption plate 311 to keep the adsorbed polarizer in an inclined position, the progressive contact and air venting during the attachment process can be achieved from one end to the other. This can effectively eliminate interface air, reduce bubbles and wrinkles, and reduce the impact and misalignment during the attachment. At the same time, the tilting is achieved solely by its own weight, making the structure simple and reliable, and significantly improving the polarizer attachment yield.

[0030] Each time the threaded rod 31 drives the displacement plate 33 to move to the position above the feeding table 21, the extension end of the hydraulic cylinder 34 drives the adsorption plate 311 to move downward through the cross plate 36. The cross plate 36 will first drive the helical rod 312 to push the U-shaped slide rod 51 downward. The U-shaped slide rod 51 pulls the hinge rod 54 to drive the slider 53 to move towards the polarizer. The slider 53 pushes the L-shaped clamp 52 along the groove of the feeding table 21 through the spring. The L-shaped clamp 52 clamps and positions the polarizer on the feeding table 21, thereby ensuring that the polarizer is accurately positioned and without deviation when it is adsorbed. In addition, the spring force between the slider 53 and the L-shaped clamp 52 can prevent the polarizer from being pinched and damaged, effectively improving the adhesion and alignment accuracy and equipment reliability.

[0031] Please see Figures 1-9Based on the above embodiments, in another embodiment of the present invention, a roller pressing device 6 is provided on the top side of the main body 1. The roller pressing device 6 includes two slide plates 65 respectively slidably installed on both sides of the main body 1 and a T-shaped column rod 61 slidably installed on the outer wall of the frame 2. The T-shaped column rod 61 is located on the movement trajectory of the cross plate 36. An elastic telescopic rod 64 is fixed at the bottom of the slide plate 65. The telescopic end of the elastic telescopic rod 64 extends vertically through the bottom of the slide plate 65. A pressure roller 63 is rotatably installed between the tops of the telescopic ends of the two elastic telescopic rods 64. The sides of the tops of the telescopic ends of the two elastic telescopic rods 64 that are far apart from each other are hinged to the outer wall of the T-shaped column rod 61 through a hinge rod 62. With the above structure, the pressure roller 63 can perform full roller pressing on the surface of the liquid crystal screen, thereby further squeezing out residual trace air and eliminating micro-wrinkles, effectively avoiding edge lifting or secondary contamination of the polarizer, and improving the bonding yield.

[0032] In use, after a polarizer is attached to an LCD screen, the guide roller 11 and short roller 12 transfer the LCD screen to the rolling device 6. Each time the cross plate 36 moves downward at the side positioning component, the cross plate 36 pushes the T-shaped column 61 downward. The T-shaped column 61 first pushes the hinge rod 3 62 to drive the pressure roller 63 downward. The telescopic end of the elastic telescopic rod 2 64 is compressed. When the pressure roller 63 contacts the LCD screen, the T-shaped column 61 pushes the hinge rod 3 62 to drive the pressure roller 63 to perform full rolling on the surface of the LCD screen, thereby further squeezing out residual trace air and eliminating micro-wrinkles, effectively avoiding edge lifting of the polarizer or secondary contamination, and improving the bonding yield.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A polarizer positioning and attaching device, comprising a device body, characterized in that: A frame is fixed to the top of the main body of the device. A material handling device is installed on the frame. The material handling device includes a threaded rod rotatably mounted on one side of the top of the frame and a long column fixed to the other side of the top of the frame. The threaded rod is driven by a motor. A displacement plate is threadedly connected to the external thread of the threaded rod and is slidably mounted on the outside of the long column. A hydraulic cylinder is fixed to the top of the displacement plate. A cross plate is fixed to the bottom of the telescopic end of the hydraulic cylinder. An adsorption component is installed at the cross plate. A geometric rod is fixed to both sides of the top of the cross plate. A positioning device is installed inside the main body of the device. The positioning device includes a side positioning component located at the main body of the device and a base plate fixed to the bottom of the inner wall of the main body of the device. A geometric rod is fixed to the top of the base plate. There is one elastic telescopic rod, and a U-shaped column is fixed between the bottom of the telescopic ends of the two elastic telescopic rods. Hollow boxes are slidably installed on both sides of the top of the base plate. A baffle is slidably installed through the top of the hollow box. A wave-shaped spring is provided between the baffle and the bottom of the inner wall of the hollow box. A square top rod is fixed on the side of the two hollow boxes that are close to each other. A slider is slidably installed on the outside of the square top rod. A spring is provided between the slider and the square top rod. The outer wall of the slider is hinged to the U-shaped column through a hinge rod. A compression plate is fixed between the bottom of the telescopic ends of the two elastic telescopic rods. A folding bladder is fixed between the bottom of the compression plate and the top of the base plate. The folding bladder is connected to the hollow box through a hose.

2. The polarizer positioning and attaching device according to claim 1, characterized in that: Several guide rollers are rotatably installed on both sides of the inside of the main body of the device, and several short rollers are rotatably installed on both sides of the middle of the main body of the device via brackets. A feeding platform is fixed on one side of the frame.

3. The polarizer positioning and attaching device according to claim 1, characterized in that: The adsorption assembly includes a T-shaped rod that runs vertically through and slides on the top of the cross plate, a connecting rod fixed to the bottom of the cross plate, and a vacuum pump fixed to the top of the displacement plate. A counterweight is fixed to the top of the T-shaped rod, and an adsorption plate is hinged to the bottom of the connecting rod. A U-shaped limiting rod is fixed to the top of the adsorption plate on the side away from the connecting rod. The bottom of the T-shaped rod slides inside the U-shaped limiting rod. The adsorption plate and the vacuum pump are connected by a hose.

4. The polarizer positioning and attaching device according to claim 1, characterized in that: The side positioning assembly includes a bidirectional screw rotatably installed inside the main body of the device and a sliding column fixed inside the main body of the device. Both sides of the outer wall of the bidirectional screw are threaded with drive blocks, and both sides of the outer wall of the sliding column are slidably installed with another drive block. A U-shaped shell is fixed between the tops of the two drive blocks, and a conveyor belt assembly is arranged inside the U-shaped shell.

5. The polarizer positioning and attaching device according to claim 1, characterized in that: The top of the telescopic end of the elastic telescopic rod is located on the movement trajectory of the geometric rod.

6. The polarizer positioning and attaching device according to claim 2, characterized in that: The top of the feeding platform has four sliding grooves, and an alignment device is installed at the feeding platform. The alignment device includes a U-shaped sliding rod that runs through and slides on the bottom of the feeding platform, and four L-shaped clamps that slide on the four sliding grooves respectively. A spring is provided between the U-shaped sliding rod and the bottom of the feeding platform. The bottom of the U-shaped sliding rod is cross-shaped. A second slider is slidably installed on the outside of the horizontal support of the L-shaped clamp. A spring is provided between the second slider and the outer wall of the horizontal support of the L-shaped clamp. The outer wall of the second slider and the outer wall of the U-shaped sliding rod are hinged together by a second hinge rod.

7. The polarizer positioning and attaching device according to claim 6, characterized in that: The top of the vertical support of the U-shaped slide bar is located on the movement trajectory of the geometric rod.

8. The polarizer positioning and attaching device according to claim 1, characterized in that: A roller pressing device is provided on the top side of the main body of the device. The roller pressing device includes two slide plates that are slidably installed on both sides of the main body of the device and a T-shaped column that is slidably installed on the outer wall of the frame. The T-shaped column is located on the movement trajectory of the cross plate. An elastic telescopic rod II is fixed at the bottom of the slide plate. The telescopic end of the elastic telescopic rod II extends vertically through the bottom of the slide plate. A pressure roller is rotatably installed between the top of the telescopic ends of the two elastic telescopic rod II. The sides of the top of the telescopic ends of the two elastic telescopic rod II that are far apart from each other are hinged to the outer wall of the T-shaped column through a hinge rod III.

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