Polarizer laminating machine

Abstract

The invention relates to the field of electronic product manufacturing equipment, in particular to a polaroid laminating machine. The polaroid laminating machine comprises a workbench and further comprises guide rails, a placing pipe and the like, the guide rails are connected to the left side and the right side of the top of the workbench, first connecting blocks are connected to the guide rails in a sliding mode, the placing pipe is connected to the bottoms of the two first connecting blocks, and an opening for unwinding a polaroid is formed in the rear end of the placing pipe; the workbench is provided with an attaching mechanism used for uncovering a polaroid protective film, the front end of the containing pipe is provided with a cleaning assembly used for cleaning a liquid crystal display module, and the workbench is provided with a fixing mechanism used for clamping the liquid crystal display module. The liquid crystal display module is positioned through the clamping plate frame, and the polaroid is pushed through the alignment piece, so that the polaroid is aligned with the side edge of the liquid crystal display module, manual alignment operation is not needed, and alignment of the polaroid and the liquid crystal display module is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of electronic product manufacturing equipment, and in particular to a polarizer laminating machine. Background Art

[0002] A polarizer, or polarizing film, is an optical component that controls the polarization direction of a specific light beam. It contains a thin film with a microscopic grating structure that blocks light polarized perpendicular to the grating structure while allowing light polarized parallel to the grating to pass through. When natural light passes through a polarizer, light perpendicular to the polarizer's transmission axis is absorbed, leaving only light parallel to the axis. This creates a contrast between light and dark, achieving the desired display effect.

[0003] In liquid crystal display modules, polarizers convert the light beam generated by the backlight source into polarized light and analyze the polarized light after being electrically modulated by the liquid crystal, thereby producing light and dark contrast and realizing the function of displaying the picture. Therefore, polarizers are the key raw materials required for liquid crystal display imaging technology and are used in terminal consumer electronic products such as televisions, computers, mobile phones and other liquid crystal imaging fields.

[0004] Polarizers have two layers of protective film. In small LCD modules, automated equipment can directly remove the protective film on one side, and the movement range is small. However, for the bonding needs of large polarizers, manual operation is required, including aligning the polarizer and LCD module, removing the protective film on one side of the polarizer, cleaning the LCD module, pushing the placement plate, passing the polarizer and LCD module through the squeezing roller, and bonding the polarizer to the LCD module. These steps are relatively cumbersome, and manual alignment takes a long time, affecting the bonding efficiency and increasing the possibility of errors, thereby affecting the bonding effect of the polarizer. Summary of the Invention

[0005] In order to overcome the shortcomings of low manual lamination efficiency and unguaranteed lamination quality, the present invention provides a semi-automatic polarizer lamination machine.

[0006] A polarizer laminating machine includes a workbench, a guide rail, and a placement tube for placing and unwinding polarizers, the guide rails being connected to the left and right sides of the top of the workbench, a first connecting block being slidably connected to the guide rails, the placement tube being connected to the bottoms of the two first connecting blocks, an opening for unwinding the polarizer being provided at the rear end of the placement tube, two guide rollers and a pressure roller being provided at the rear end of the placement tube, the two guide rollers being respectively located above and below the rear end of the placement tube, the pressure roller being located behind the guide roller, a laminating mechanism for peeling off a protective film of the polarizer being provided on the workbench, a cleaning component for cleaning a liquid crystal display module being provided at the front end of the placement tube, and a fixing mechanism for clamping the liquid crystal display module being provided on the workbench.

[0007] More preferably, the bonding mechanism includes a support frame and a pull rope, the support frame is connected to the workbench, the top of the support frame is connected to a flat rack, the support frame is slidably connected to a wire rack, the top of the wire rack is rotatably connected to a first connecting rod, the first connecting rod is connected to a first gear, the first gear is engaged with the flat rack, both ends of the first connecting rod are connected to a winding wheel, the bottom of the wire rack is connected to the placement tube, and the lower end of the wire rack bypasses the placement tube and is located at the opening of the placement tube, the wire rack is slidably connected to a sticky roller, one end of the pull rope is connected to the winding wheel, and the other end of the pull rope is connected to both ends of the sticky roller.

[0008] More preferably, the cleaning assembly includes a second connecting block, which is connected to the left and right sides of the front end of the placement tube, and the second connecting block is connected to a cleaning mixing and cleaning plate, which is located in front of the cleaning mixing.

[0009] More preferably, the fixing mechanism includes a guide plate, which is connected to the left and right sides of the workbench, and a clamping frame is slidably connected to the guide plate. An extension plate is provided at the rear end of the left clamping frame, and an alignment member is slidably connected to the extension plate. The right end of the alignment member is slidably connected to the placement tube, and a limiting pin is connected to the top of the workbench, and a second gear is rotatably connected to the limiting pin. A bending rack is connected to the side of the clamping frame, and the bending rack is slidably connected to the workbench, and the bending rack is engaged with the second gear.

[0010] More preferably, it also includes a lifting assembly, which includes a second connecting rod and a fixed plate, the second connecting rod is connected to the front and rear sides of the bending rack, the fixed plate is connected to the top of the workbench, the fixed plate is slidably connected to a sliding rod, the top of the sliding rod is connected to a top plate, the front and rear ends of the second connecting rod are located at the bottom of the left and right ends of the top plate, and a first elastic member is sleeved on the sliding rod, one end of the first elastic member is connected to the fixed plate, and the other end is connected to the sliding rod.

[0011] More preferably, it also includes a fixed sleeve, which is connected to the workbench, and a sliding frame is slidably connected to the fixed sleeve, and a triangular rod and a trapezoidal round rod are connected to the top of the sliding frame. A top rod is provided at the right end of the placement tube, and the top rod is squeezed into fit with the triangular rod. A second elastic member is provided at the bottom of the sliding frame, and one end of the second elastic member is connected to the bottom of the fixed sleeve, and the other end is connected to the bottom of the sliding frame.

[0012] More preferably, it also includes a limit frame, which is connected to the guide rail, and a limit rod is slidably connected to the limit frame, and the bottom of the limit rod is set as a trapezoidal block, and the trapezoidal block is limitedly matched with the top of the first connecting block, and a third elastic member is sleeved on the limit rod, and one end of the third elastic member is connected to the limit frame, and the other end is connected to the limit rod.

[0013] More preferably, the alignment member consists of a push rod and a circular top plate, the outer diameter of the circular top plate is equal to the inner diameter of the placement tube, the push rod is slidably connected to the extension plate, the length of the push rod is equal to the width of the clamping frame, and when the clamping frame fixes the liquid crystal display module, the alignment member is pushed to the middle to the maximum stroke, and the polarizer is aligned with the liquid crystal display module.

[0014] More preferably, the guide roller, the pressure roller, the sticky roller and the cleaning mixer are all composed of support rods and cylindrical tubes of different external materials. The cylindrical tubes outside the guide roller and the pressure roller are flexible rubber, the cylindrical tube outside the sticky roller is a sticky glue stick, and the cylindrical tube outside the cleaning mixer is a cleaning rod provided with fine fluff that does not shed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The liquid crystal display module is positioned by the clamping frame, and the polarizer is pushed by the alignment part to align the sides of the polarizer and the liquid crystal display module, so that manual alignment operations are unnecessary, making it convenient to align the polarizer and the liquid crystal display module. The bonding mechanism can separate the protective film at the bottom of the polarizer when moving the polarizer, and the polarizer is bonded by the pressure roller, thereby optimizing the polarizer bonding process. Before bonding the polarizer, the liquid crystal display module is cleaned by the cleaning component to achieve the purpose of semi-automatic bonding of the polarizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the connection structure of the workbench, guide rail and first connecting block of the present invention.

[0018] Figure 3 It is a side view of the guide roller, pressure roller and cleaning roller of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the laminating mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the connection structure of the first gear, the first connecting rod and the winding wheel of the present invention.

[0021] Figure 6 The figure is a schematic diagram of the connection structure of the conductor frame, the pull rope and the adhesive roller of the present invention.

[0022] Figure 7 It is a top view of the fixing mechanism and lifting assembly of the present invention.

[0023] Figure 8 It is a bottom view of the fixing mechanism and lifting assembly of the present invention.

[0024] Figure 9 This is a schematic diagram of the connection structure of the placement tube, extension plate and alignment member of the present invention.

[0025] Figure 10 It is a partial structural sectional view of the workbench of the present invention.

[0026] Figure 11 for Figure 10 Enlarged view of point A in the middle.

[0027] Figure 12 for Figure 10 Enlarged view of point B in the middle.

[0028] Markings in the accompanying drawings: 1: workbench, 11: placement tube, 111: guide roller, 112: pressure roller, 12: guide rail, 13: first connecting block, 2: laminating mechanism, 21: support frame, 22: flat rack, 23: first gear, 24: first connecting rod, 25: winding wheel, 26: wire rack, 27: pull rope, 28: sticking roller, 3: cleaning component, 31: second connecting block, 32: cleaning mixer, 33: cleaning plate, 4: fixing mechanism, 41: splint frame, 42 : Guide plate, 43: Bending rack, 44: Second gear, 45: Limiting pin, 46: Extension plate, 47: Alignment part, 5: Lifting assembly, 51: Second connecting rod, 52: Fixed plate, 53: Top plate, 54: Sliding rod, 55: First elastic part, 6: Top rod, 61: Sliding frame, 62: Triangular rod, 63: Trapezoidal round rod, 64: Fixed sleeve, 65: Second elastic part, 7: Limiting frame, 71: Limiting rod, 711: Trapezoidal block, 72: Third elastic part. DETAILED DESCRIPTION

[0029] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0030] Embodiment: A polarizer laminating machine, such as Figure 1-Figure 3As shown, it includes a workbench 1, a placement tube 11, a guide roller 111, a pressure roller 112, a guide rail 12, a first connecting block 13, a bonding mechanism 2, a cleaning component 3 and a fixing mechanism 4. The placement tube 11 is used to place and unwind the polarizer. The guide rail 12 is connected to the left and right sides of the top of the workbench 1. The first connecting block 13 is slidably connected to the guide rail 12. The placement tube 11 is connected to the bottom of the two first connecting blocks 13. The rear end of the placement tube 11 is provided with an opening for unwinding the polarizer. The rear end of the placement tube 11 is provided with two guide rollers 111 and a pressure roller 112. The two guide rollers 111 are respectively located above and below the rear end of the placement tube 11. The pressure roller 112 is located behind the guide roller 111. The workbench 1 is provided with a bonding mechanism 2 for uncovering the polarizer protective film. The front end of the placement tube 11 is provided with a cleaning component 3 for cleaning the liquid crystal display module. The workbench 1 is provided with a fixing mechanism 4 for clamping the liquid crystal display module.

[0031] like Figure 4-Figure 6 As shown, the bonding mechanism 2 includes a support frame 21, a flat rack 22, a first gear 23, a first connecting rod 24, a winding wheel 25, a wire rack 26, a pull rope 27 and a sticking roller 28. The support frame 21 is connected to the workbench 1. The top of the support frame 21 is connected to the flat rack 22. The wire rack 26 is slidably connected to the support frame 21. The top of the wire rack 26 is rotatably connected to the first connecting rod 24. The first connecting rod 24 is connected to the first gear 23. The first gear 23 is engaged with the flat rack 22. Both ends of the first connecting rod 24 are connected to the winding wheel 25. The bottom of the wire rack 26 is connected to the placement tube 11, and the lower end of the wire rack 26 bypasses the placement tube 11 and is located at the opening of the placement tube 11. The wire rack 26 is slidably connected to the sticking roller 28. One end of the pull rope 27 is connected to the winding wheel 25, and the other end of the pull rope 27 is connected to both ends of the sticking roller 28.

[0032] like Figure 2 and Figure 3 As shown, the cleaning assembly 3 includes a second connecting block 31, a cleaning mixer 32 and a cleaning plate 33. The second connecting block 31 is connected to the left and right sides of the front end of the placement tube 11. The cleaning mixer 32 and the cleaning plate 33 are connected to the second connecting block 31. The cleaning plate 33 is located in front of the cleaning mixer 32.

[0033] like Figure 7-Figure 9As shown, the fixing mechanism 4 includes a clamping plate frame 41, a guide plate 42, a bending rack 43, a second gear 44, a limiting nail 45, an extension plate 46 and an alignment member 47. The guide plate 42 is connected to the left and right sides of the workbench 1. The clamping plate frame 41 is slidably connected to the guide plate 42. The rear end of the left clamping plate frame 41 is provided with an extension plate 46. The extension plate 46 is slidably connected to the alignment member 47. The right end of the alignment member 47 is slidably connected to the placement tube 11. The limiting nail 45 is connected to the top of the workbench 1. A second gear 44 is rotatably connected to 45, and a bending rack 43 is connected to the side of the splint frame 41. The bending rack 43 is slidably connected to the workbench 1, and the bending rack 43 is engaged with the second gear 44. The alignment member 47 is composed of a push rod and a circular push plate. The outer diameter of the circular push plate is equal to the inner diameter of the placement tube 11, and the length of the push rod is equal to the width of the splint frame 41. When the splint frame 41 fixes the liquid crystal display module, the alignment member 47 is pushed to the middle to the maximum stroke, and the polarizer and the liquid crystal display module are aligned.

[0034] It should be added that the guide roller 111, the pressure roller 112, the sticky roller 28 and the cleaning mixer 32 are all composed of support rods and cylindrical tubes of different external materials. The cylindrical tubes outside the guide roller 111 and the pressure roller 112 are flexible rubber, the cylindrical tube outside the sticky roller 28 is a sticky rubber stick, and the cylindrical tube outside the cleaning mixer 32 is a cleaning rod provided with fine fluff that does not shed.

[0035] The staff puts the liquid crystal display module that needs to be laminated with the polarizer in the middle of the fixing mechanism 4, puts the rolled polarizer into the placement tube 11, and then passes the polarizer through the opening at the rear end of the placement tube 11 and is guided by two guide rollers 111. The protruding part of the polarizer is located at the bottom of the pressure roller 112, and the protective film at the bottom of the polarizer is attached to the sticking roller 28. Then the placement tube 11 is moved forward, and the guide rail 12 and the first connecting block 13 are used to ensure that the placement tube 11 can only slide back and forth. During the movement, the protective film is separated by the laminating mechanism 2. Before laminating the polarizer, the surface of the liquid crystal display module is cleaned by the cleaning component 3. Then, when the placement tube 11 passes through the surface of the liquid crystal display module, the pressure roller 112 squeezes the polarizer and laminates the polarizer on the liquid crystal display module. Then, the protective film is torn off from the sticking roller 28, the liquid crystal display module is removed, and the laminating mechanism 2 is moved backward to complete the reset. When fixing the LCD module, the LCD module is placed on the workbench 1, and then the clamping frame 41 is pushed. During the movement of the clamping frame 41 on one side, the bending rack 43 fixed thereto also moves. After the bending rack 43 is engaged with the second gear 44, the bending rack 43 on the other side is pulled, so that the clamping frame 41 on the other side is also moved toward the middle, clamping the LCD module from both sides. In addition, other electronic components are connected to the LCD module, which are adhered to the clamping frame 41 by fixing tape to ensure that when the polarizer is attached, it will not be on the upper surface of the LCD module, thereby completing the fixation of the LCD module. For LCDs of different sizes, Module, close to the rear end of the clamping frame 41, because the pressure roller 112 moves from front to back, the adhesive roller 28 pulls out the protective film from the back, once the bottom of the polarizer is in contact with the liquid crystal display module, the rotation direction of the pressure roller 112 will provide a backward force for the polarizer. Because the surface of the pressure roller 112 is made of rubber, it will not slide when squeezing the polarizer. The static friction force is large enough. After the bonding is completed, the clamping frame 41 on one side is directly pulled out. With the cooperation of the bent rack 43 and the second gear 44, the clamping frame 41 on the other side will also move, thereby pulling out the clamping frames 41 on both sides, releasing the clamping fixation of the liquid crystal display module, and tearing off the sticky tape; When placing the polarizer, it is necessary to roll up the polarizer and pass one end of the outer ring through the opening at the rear end of the placement tube 11 without pushing it into the placement tube 11. When pushing the clamping frame 41, the extension plate 46 will also move. After fixing the liquid crystal display module, the position of the extension plate 46 is fixed. At this time, the alignment member 47 is pushed. Since the length of the push rod is equal to the width of the clamping frame 41, it is pushed directly to the innermost part. The position of the left end of the polarizer is aligned with the position of the left end of the liquid crystal display module. Move the adhesive roller 28 to the end of the lower end of the wire rack 26, and then stick the part of the polarizer extending out of the placement tube 11 on the adhesive roller 28. , the sticky roller 28 sticks to the protective film on the lower side of the polarizer, and slowly moves the sticky roller 28 downward. Under the premise of ensuring that the polarizer does not touch the workbench 1, the staff moves the sticky roller 28 as much as possible to pull out the polarizer, and then pushes the placement tube 11. The wire rack 26 moves with it, and the first connecting rod 24 slides on the support frame 21. Since the sticky roller 28 has moved a distance, the pull rope 27 is in a loose state. Therefore, when it just moves, the first gear 23 engages with the flat rack 22, and the first connecting rod 24 is driven to rotate by the first gear 23, so that the winding wheel 25 rotates to reel in the pull rope 27. Since the pull rope 27 has a loose distance, The polarizer will not continue to discharge, and the liquid crystal display module is tightly attached to the rear end of the clamping frame 41, so the polarizer and the rear end of the liquid crystal display module will contact immediately, and the placement tube 11 moving forward will cause the polarizer to bend backward and contact with the pressure roller 112. Then the staff will loosen the sticking roller 28, and the polarizer will be pressed against the liquid crystal display module under the pressure of the pressure roller 112. As the placement tube 11 moves, the first connecting rod 24 keeps rotating under the engagement of the flat rack 22 and the first gear 23, so that the sticking roller 28 moving with the pull rope 27 will pull the protective film of the polarizer from the front end, and pull the polarizer out of the placement tube 11. Pull it out, and at the same time, the pressure roller 112 squeezes the part where the polarizer is bonded to the liquid crystal display module, and also pulls out the polarizer during the movement of the placement tube 11, to ensure the smooth discharge of the polarizer until the bonding of the polarizer is finally completed. After the bonding is completed, the liquid crystal display module is removed, and the pull rope 27 has been wound on the winding wheel 25. The width of the winding wheel 25 is sufficient and will not affect the winding speed of the pull rope 27 during the movement. After removing the protective film from the sticking roller 28, the placement tube 11 is pushed backward to reset, the flat rack 22 and the first gear 23 are used to reverse the first gear 23, the winding wheel 25 releases the pull rope 27, and the sticking roller 28 falls naturally; When pushing the placement tube 11, the cleaning plate 33 first contacts the upper surface of the liquid crystal display module, so that the wet cleaning plate 33 can clean the surface of the liquid crystal display module, and then the cleaning mixture 32 can wipe off the moisture on the surface of the liquid crystal display module to ensure the bonding effect.

[0036] like Figure 7-Figure 9As shown, it also includes a lifting assembly 5, which includes a second connecting rod 51, a fixed plate 52, a top plate 53, a sliding rod 54 and a first elastic member 55. The lifting assembly 5 includes a second connecting rod 51 and a fixed plate 52. The second connecting rod 51 is connected to the front and rear sides of the bending rack 43, and the fixed plate 52 is connected to the top inside the workbench 1. The sliding rod 54 is slidably connected to the fixed plate 52, and the top of the sliding rod 54 is connected to the top plate 53. The front and rear ends of the second connecting rod 51 are located at the bottom of the left and right ends of the top plate 53. The sliding rod 54 is sleeved with a first elastic member 55. One end of the first elastic member 55 is connected to the fixed plate 52, and the other end is connected to the sliding rod 54.

[0037] The first elastic member 55 is in a compressed state, so that the first elastic member 55 pushes the sliding rod 54 connected to the bottom downward, so that the top plate 53 is attached to the workbench 1. However, when the clamping plate frame 41 moves, it drives the second connecting rod 51 to squeeze the top plate 53 and make it rise. When clamping the LCD module, the second connecting rod 51 passes through the bottom of the top plate 53. Then, due to the first elastic member 55, the top plate 53 rises and then resets. When removing the LCD module, refer to Figure 8 , where the splint frame 41 can still be pulled to both sides, so when the splint frame 41 is pulled out, the second connecting rod 51 and the ladder block at the bottom of the top plate 53 are released, thereby lifting the top plate 53. At this time, the bottom of the liquid crystal display module is not attached to the workbench 1, and there is a gap, which is convenient for picking up. Then the splint frame 41 is pulled out, the second connecting rod 51 is separated from the top plate 53, and the top plate 53 is attached to the workbench 1 under the action of the rebound force of the compressed first elastic member 55.

[0038] like Figure 10 and Figure 11 As shown, it also includes a push rod 6, a sliding frame 61, a triangular rod 62, a trapezoidal round rod 63, a fixed sleeve 64 and a second elastic member 65. The fixed sleeve 64 is connected to the workbench 1, and the sliding frame 61 is slidably connected to the fixed sleeve 64. The top of the sliding frame 61 is connected to the triangular rod 62 and the trapezoidal round rod 63. The right end of the placement tube 11 is provided with a push rod 6, and the push rod 6 is squeezed together with the triangular rod 62. The bottom of the sliding frame 61 is sleeved with a second elastic member 65. One end of the second elastic member 65 is connected to the bottom of the fixed sleeve 64, and the other end is connected to the bottom of the sliding frame 61.

[0039] One end of the sticking roller 28 is lifted up by the trapezoidal round rod 63 and stuck at the outlet of the placement tube 11. The protruding part of the polarizer is very short. When the placement tube 11 is moved, the top rod 6 will squeeze the triangular rod 62, thereby squeezing the sliding frame 61 downward, compressing the second elastic member 65, and moving the trapezoidal round rod 63 downward, thereby gradually releasing the sticking roller 28 and causing the sticking roller 28 to fall. Therefore, at the beginning, there is no need for the staff to manually control the falling distance of the sticking roller 28, which can ensure the safety of the polarizer. When the top rod 6 passes the top of the triangular rod 62, since the height of the top of the triangular rod 62 is greater than the trapezoidal round rod 63, the distance between the bottom of the top rod 6 and the workbench 1 is equal to the height difference between the triangular rod 62 and the trapezoidal round rod 63, so at this time the top of the trapezoidal round rod 63 is already flush with the surface height of the workbench 1. The height difference between the rear triangular rod 62 and the trapezoidal round rod 63 provides a safer distance for the smooth passage of the sticking roller 28, so that the sticking roller 28 can be smoothly pulled out by the pull rope 27. During the gradual separation of the top rod 6 from the triangular rod 62, the second elastic member 65 rebounds and the sliding frame 61 resets upward. When the collection tube is reset, the top rod 6 squeezes the triangular rod 62 from the front side, causing the trapezoidal round rod 63 to move downward, and the sticking roller 28 falls freely and remains at the bottom of the wire rack 26. After the top rod 6 passes the top of the triangular rod 62, the second elastic member 65 rebounds, causing the sliding frame 61 to move upward with the trapezoidal round rod 63, and the top of the trapezoidal round rod 63 lifts the sticking roller 28. As the trapezoidal round rod 63 moves upward, the sticking roller 28 slides backward along the wire rack 26, causing the sticking roller 28 to rise to the opening of the placement tube 11.

[0040] like Figure 10 and Figure 12 As shown, it also includes a limit frame 7, a limit rod 71, a trapezoidal block 711 and a third elastic member 72. The limit frame 7 is connected to the guide rail 12. The limit rod 71 is slidably connected to the limit frame 7. The bottom of the limit rod 71 is set to a trapezoidal block 711. The trapezoidal block 711 is limitedly matched with the top of the first connecting block 13. The third elastic member 72 is sleeved on the limit rod 71. One end of the third elastic member 72 is connected to the limit frame 7, and the other end is connected to the limit rod 71.

[0041] When the tube 11 is placed at the rear end, since there is a trapezoidal groove on the top of the first connecting block 13, the trapezoidal block 711 is inserted on the first connecting block 13 to limit the movement of the first connecting block 13, which is convenient for preparation work. When the tube 11 is placed at the rear end, the movement of the first connecting block 13 is limited, which is convenient for removing the liquid crystal display module and removing the protective film on the adhesive roller 28. During the movement of the placing tube 11, the first connecting block 13 squeezes the trapezoidal block 711, causing the trapezoidal block 711 and the limiting rod 71 to move upward, compressing the third elastic member 72. When the first connecting block 13 passes through the trapezoidal block 711, the third elastic member 72 rebounds, causing the limiting rod 71 to slide back to its original position.

[0042] It should be understood that the above description is only for illustrative purposes and is not intended to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will fall within the scope of the claims herein.

Claims

1. A polarizer laminating machine, comprising a workbench (1), characterized in that: The invention also includes a guide rail (12) and a placement tube (11) for placing and unwinding the polarizer, wherein the guide rail (12) is connected to the left and right sides of the top of the workbench (1), and a first connecting block (13) is slidably connected to the guide rail (12). The placement tube (11) is connected to the bottom of the two first connecting blocks (13). The rear end of the placement tube (11) is provided with an opening for unwinding the polarizer, and the rear end of the placement tube (11) is provided with two guide rollers (111) and a pressure roller (112). The two guide rollers (111) are respectively located above and below the rear end of the placement tube (11), and the pressure roller (112) is located behind the guide roller (111). The workbench (1) is provided with a bonding mechanism (2) for uncovering the polarizer protective film, the front end of the placement tube (11) is provided with a cleaning component (3) for cleaning the liquid crystal display module, and the workbench (1) is provided with a fixing mechanism (4) for clamping the liquid crystal display module.

2. The polarizer laminating machine according to claim 1, wherein: The laminating mechanism (2) includes a support frame (21) and a pull rope (27), wherein the support frame (21) is connected to the workbench (1), the top of the support frame (21) is connected to a flat rack (22), the support frame (21) is slidably connected to a wire rack (26), the top of the wire rack (26) is rotatably connected to a first connecting rod (24), the first connecting rod (24) is connected to a first gear (23), the first gear (23) is engaged with the flat rack (22), the first connecting rod (24) is connected to a winding wheel (25) at both ends, the bottom of the wire rack (26) is connected to the placement tube (11), and the lower end of the wire rack (26) bypasses the placement tube (11) and is located at the opening of the placement tube (11), the wire rack (26) is slidably connected to a sticking roller (28), one end of the pull rope (27) is connected to the winding wheel (25), and the other end of the pull rope (27) is connected to both ends of the sticking roller (28).

3. The polarizer laminating machine according to claim 2, wherein: The cleaning assembly (3) includes a second connecting block (31), the second connecting block (31) is connected to the left and right sides of the front end of the placement tube (11), and the second connecting block (31) is connected to a cleaning mixer (32) and a cleaning plate (33), and the cleaning plate (33) is located in front of the cleaning mixer (32).

4. The polarizer laminating machine according to claim 3, wherein: The fixing mechanism (4) includes a guide plate (42), the guide plate (42) is connected to the left and right sides of the workbench (1), a clamping frame (41) is slidably connected to the guide plate (42), an extension plate (46) is provided at the rear end of the left clamping frame (41), an alignment member (47) is slidably connected to the extension plate (46), the right end of the alignment member (47) is slidably connected to the placement tube (11), a limiting pin (45) is connected to the top of the workbench (1), a second gear (44) is rotatably connected to the limiting pin (45), a bending rack (43) is connected to the side of the clamping frame (41), the bending rack (43) is slidably connected to the workbench (1), and the bending rack (43) is engaged with the second gear (44).

5. The polarizer laminating machine according to claim 4, wherein: The utility model also includes a lifting assembly (5), wherein the lifting assembly (5) includes a second connecting rod (51) and a fixed plate (52), wherein the second connecting rod (51) is connected to the front and rear sides of the bending rack (43), the fixed plate (52) is connected to the top of the workbench (1), a sliding rod (54) is slidably connected to the fixed plate (52), and the top of the sliding rod (54) is connected to the top plate (53), the front and rear ends of the second connecting rod (51) are located at the bottom of the left and right ends of the top plate (53), and a first elastic member (55) is sleeved on the sliding rod (54), and one end of the first elastic member (55) is connected to the fixed plate (52), and the other end is connected to the sliding rod (54).

6. The polarizer laminating machine according to claim 5, characterized in that: It also includes a fixed sleeve (64), the fixed sleeve (64) is connected to the workbench (1), a sliding frame (61) is slidably connected to the fixed sleeve (64), the top of the sliding frame (61) is connected to a triangular rod (62) and a trapezoidal round rod (63), a top rod (6) is provided at the right end of the placement tube (11), the top rod (6) is squeezed and matched with the triangular rod (62), and a second elastic member (65) is sleeved on the bottom of the sliding frame (61), one end of the second elastic member (65) is connected to the bottom of the fixed sleeve (64), and the other end is connected to the bottom of the sliding frame (61).

7. The polarizer laminating machine according to claim 6, wherein: The invention also includes a limit frame (7), wherein the limit frame (7) is connected to the guide rail (12), and a limit rod (71) is slidably connected to the limit frame (7), and the bottom of the limit rod (71) is set as a trapezoidal block (711), and the trapezoidal block (711) is limitedly matched with the top of the first connecting block (13), and a third elastic member (72) is sleeved on the limit rod (71), and one end of the third elastic member (72) is connected to the limit frame (7), and the other end is connected to the limit rod (71).

8. The polarizer laminating machine according to claim 7, wherein: The alignment member (47) is composed of a push rod and a circular top plate (53). The outer diameter of the circular top plate (53) is equal to the inner diameter of the placement tube (11). The push rod is slidably connected to the extension plate (46). The length of the push rod is equal to the width of the clamping frame (41). When the clamping frame (41) fixes the liquid crystal display module, the alignment member (47) is pushed to the middle to the maximum stroke, and the polarizer is aligned with the liquid crystal display module.

9. The polarizer laminating machine according to claim 8, wherein: The guide roller (111), the pressure roller (112), the sticky roller (28) and the cleaning mixer (32) are all composed of support rods and cylindrical tubes of different materials on the outside. The cylindrical tubes on the outside of the guide roller (111) and the pressure roller (112) are flexible rubber, the cylindrical tube on the outside of the sticky roller (28) is a sticky rubber stick, and the cylindrical tube on the outside of the cleaning mixer (32) is a cleaning rod provided with fine lint that does not shed.

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