Panel laminating device for liquid crystal display screen production

Abstract

This invention discloses a panel bonding device for LCD screen production, belonging to the field of LCD screen manufacturing technology. It includes a machine base with a fixed frame on one side. The fixed frame has a transverse movement mechanism arranged along the X-axis, and the transverse movement mechanism has an electric push rod. The bottom end of the electric push rod has an inverted U-shaped material transfer bracket. A material transfer bonding mechanism and a material transfer film removal mechanism are respectively installed at both ends of the material transfer bracket. Three workstations are equidistantly arranged along the X-axis on the machine base, and each of the three workstations is equipped with a first elastic positioning mechanism, a bonding base plate, and a second elastic positioning mechanism. The panel bonding device for LCD screen production provided by this invention can achieve two-stage precise and non-destructive positioning, and can also achieve automatic film removal and bonding.

Description

Technical Field

[0001] This invention belongs to the field of liquid crystal display manufacturing technology, specifically referring to a panel bonding device for liquid crystal display manufacturing. Background Technology

[0002] Panel lamination is a crucial step in LCD manufacturing, involving the precise and secure bonding of the panel material to the glass cover. An LCD is a flat-panel display technology that utilizes the properties of liquid crystal materials to display images by controlling the transmission or obstruction of light.

[0003] However, traditional LCD panel bonding equipment typically uses manual or semi-automatic positioning and clamping methods. This positioning method has low positioning accuracy and is prone to errors, resulting in excessive or insufficient clamping force. Excessive clamping force can easily damage the panel or cover plate, while insufficient clamping force can easily cause the panel or cover plate to be not completely centered or at an inaccurate angle. In addition, the existing cover plate and panel surfaces are covered with protective film, which needs to be manually removed before bonding, which is very inconvenient. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a panel bonding device for liquid crystal display production, which can achieve two-stage precise and non-destructive positioning, and can also achieve automatic film peeling and bonding.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a panel bonding device for liquid crystal display production, including a machine base. A fixed frame is provided on one side of the machine base. A transverse moving mechanism is provided on the fixed frame along the X-axis. An electric push rod is provided on the transverse moving mechanism. A U-shaped transfer bracket is provided at the bottom end of the electric push rod. A transfer bonding mechanism and a transfer film removal mechanism are respectively installed at both ends of the transfer bracket. Three workstations are equidistantly arranged along the X-axis on the machine base. An elastic positioning mechanism I, a bonding base plate, and an elastic positioning mechanism II are respectively installed on the three workstations. The length from the center of the transfer bonding mechanism to the center of the transfer film removal mechanism is equal to the length between the centers of two adjacent workstations. A pneumatic film removal mechanism is provided on the elastic positioning mechanism I. A vacuum suction cup I is embedded in the middle of the bottom wall of the transfer bonding mechanism.

[0006] The first elastic positioning mechanism and the second elastic positioning mechanism have the same structure. The first elastic positioning mechanism includes a positioning groove, a key shaft, a bidirectional lead screw, and a positioning module. The positioning groove is a rectangular cavity with an open upper wall. The key shaft and the first bidirectional lead screw are rotatably disposed within the positioning groove. The end of the key shaft rotatably passes through the side wall of the positioning groove and extends out of the positioning groove. The end of the first bidirectional lead screw rotatably passes through the side wall of the positioning groove and extends out of the positioning groove. The first bidirectional lead screw and the key shaft are arranged parallel to each other along the Y-axis. The two ends of the first bidirectional lead screw are symmetrically provided with threads of opposite directions. The positioning module is symmetrically disposed at both ends of the first bidirectional lead screw. The positioning module includes a two-stage adjustment mechanism, a second bidirectional lead screw, and a two-stage positioning mechanism. The two-stage adjustment mechanism is slidably connected to the key shaft and the second bidirectional lead screw. The two-stage adjustment mechanisms of the two positioning modules are respectively threaded to both ends of the bidirectional lead screw one. The bidirectional lead screw two rotates through the two-stage adjustment mechanisms along the X-axis. The bidirectional lead screw two is set perpendicular to the bidirectional lead screw one. The two ends of the bidirectional lead screw two are symmetrically provided with threads of opposite directions. The two-stage positioning mechanisms are symmetrically slidably arranged on both sides of the two-stage adjustment mechanisms. The two symmetrically arranged two-stage positioning mechanisms are respectively threaded to both ends of the bidirectional lead screw two. A key sleeve that cooperates with the key shaft is rotatably passed through the two-stage adjustment mechanisms. The key shaft slides through the key sleeve, and the key shaft and key sleeve mesh with each other. A transmission component is connected between the bidirectional lead screw two and the key sleeve. Each positioning slot is provided with four two-stage positioning mechanisms. The four two-stage positioning mechanisms are symmetrically slidably arranged in pairs at the four corners of the positioning slot.

[0007] Furthermore, the two-stage adjustment mechanism includes a coarse adjustment slide, a fine adjustment slide, and a pneumatic elastic telescopic component. The coarse adjustment slide is threadedly connected to a double-acting lead screw. The key shaft is slidably connected to the coarse adjustment slide and the fine adjustment slide is slidably connected to the double-acting lead screw. The key sleeve rotates through the fine adjustment slide along the Y-axis and passes through the fine adjustment slide. The key shaft slides through the key sleeve. The double-acting lead screw rotates through the fine adjustment slide. The pneumatic elastic telescopic component is located between the coarse adjustment slide and the fine adjustment slide. The fine adjustment slide has a transmission cavity. The transmission assembly is located in the transmission cavity. The key sleeve and the double-acting lead screw extend into the transmission cavity. The key sleeve and the double-acting lead screw are arranged perpendicularly.

[0008] Furthermore, guide slides are symmetrically arranged on both sides of the fine-adjustment slide one, and the guide slides are arranged parallel to the double-acting lead screw two. The two-stage positioning mechanism includes a coarse-adjustment slide two, a fine-adjustment slide two, a pneumatic elastic telescopic component two, a support column, a positioning support plate, a positioning slide plate, and an L-shaped limiting plate. The coarse-adjustment slide two is slidably connected to the double-acting lead screw two and the guide slides. The coarse-adjustment slide two of the two symmetrically arranged two-stage positioning mechanisms are respectively threaded to both ends of the double-acting lead screw two. The fine-adjustment slide two is slidably connected to the double-acting lead screw two and the guide slides respectively. The pneumatic elastic telescopic component two is located on the coarse-adjustment slide two. Between the second slide block and the second fine-tuning slide block, the support column is fixedly installed on the upper wall of the second fine-tuning slide block, the positioning support plate is installed at the upper end of the support column, the positioning slide plate is slidably installed on the support column and below the positioning support plate, a support spring is provided between the second fine-tuning slide block and the positioning slide plate, the support spring makes the positioning slide plate always maintain the tendency to slide towards the positioning support plate, the L-shaped limiting plate is fixedly installed on the upper wall of the positioning slide plate, and the positioning support plate is installed inside the L-shaped limiting plate; the bottom wall of the positioning groove is provided with an air cavity, the air cavity is connected to each of the first pneumatic elastic telescopic component and each of the second pneumatic elastic telescopic component respectively.

[0009] Furthermore, the pneumatic elastic telescopic component one and the pneumatic elastic telescopic component two have the same structure. The pneumatic elastic telescopic component one includes a cylinder, a piston, a fine-adjusting spring, and a fine-adjusting rod. The piston is slidably sealed inside the cylinder. One end of the cylinder has a telescopic through hole. One end of the fine-adjusting rod is fixedly connected to the piston. The other end of the fine-adjusting rod passes through the telescopic through hole and extends out of the cylinder. An elastic air tube is connected to the end of the cylinder away from the telescopic through hole. The fine-adjusting spring is located at the end of the fine-adjusting rod away from the piston. A pneumatic drive chamber is provided inside the air chamber. A suction dual-purpose air pump one is provided on the side wall of the positioning groove. The suction dual-purpose air pump one is connected to the pneumatic drive chamber. The elastic air tube is connected to the pneumatic drive chamber.

[0010] Preferably, the cylinder of the first pneumatic elastic telescopic component is fixedly inserted through the first fine-adjustment slide, and the fine-adjustment spring of the first pneumatic elastic telescopic component is connected to the first coarse-adjustment slide. The cylinder of the second pneumatic elastic telescopic component is fixedly inserted through the second coarse-adjustment slide, and the fine-adjustment spring of the second pneumatic elastic telescopic component is fixedly connected to the second fine-adjustment slide.

[0011] Furthermore, the transmission assembly includes a first bevel gear, a second bevel gear, a concentric gear, and a transmission gear. The first bevel gear is coaxially fixed to the key sleeve. The concentric gear is rotatably disposed within the transmission cavity. The second bevel gear is coaxially fixed to the side wall of the concentric gear and meshes with the first bevel gear. The transmission gear is coaxially fixed to the second bidirectional lead screw and is disposed within the transmission cavity, meshing with the concentric gear.

[0012] Preferably, the sidewall of the positioning groove is provided with a coarse positioning motor one and a coarse positioning motor two, the output shaft of the coarse positioning motor one is coaxially fixed to the bidirectional lead screw, and the output shaft of the coarse positioning motor two is coaxially fixed to the key shaft.

[0013] As a further improvement to this solution, the upper end of the positioning groove is provided with a cross-shaped support frame. The cross-shaped support frame divides the positioning groove into four adjustment zones. Each adjustment zone is provided with a two-stage positioning mechanism. The height from the upper wall of the support frame to the bottom wall of the positioning groove is equal to the height from the upper wall of the positioning support plate to the bottom wall of the positioning groove. When clamping and positioning, the cover plate can be placed on the support frame first, and then the four two-stage positioning mechanisms can be driven to move to clamp and position the cover plate or panel.

[0014] Furthermore, the pneumatic membrane removal mechanism includes a dual-purpose suction and suction air pump II and a membrane removal negative pressure chamber. The membrane removal negative pressure chamber is located inside the air chamber. The positioning support plate of the elastic positioning mechanism I is provided with a vacuum chamber. Suction holes are evenly distributed on the top wall of the positioning support plate of the elastic positioning mechanism I. The suction holes are connected to the vacuum chamber. The dual-purpose suction and suction air pump II is located on the side wall of the positioning groove. A membrane removal elastic hose is provided to connect the membrane removal negative pressure chamber and each vacuum chamber.

[0015] The material transfer and bonding mechanism includes a material transfer top plate located at the bottom of the material transfer bracket. The material transfer top plate is adapted to the bonding bottom plate. A vacuum suction cup is embedded in the middle of the top wall of the bonding bottom plate. When the material transfer top plate moves above the bonding bottom plate, the cover plate adsorbed by the bottom wall of the material transfer top plate aligns with the panel material on the bonding bottom plate, so that the material transfer top plate can bond the cover plate to the panel material on the bonding bottom plate.

[0016] Preferably, the material transfer and film removal mechanism includes a fixed sleeve, a center plate, a vacuum suction cup, a hinge rod, a sliding block, and a film removal electric push rod. The center plate is fixedly mounted on the end of the material transfer bracket away from the material transfer and bonding mechanism. The fixed sleeve is fixedly mounted on the upper wall of the center plate. The side wall of the fixed sleeve has symmetrically opened film removal sliding holes. The sliding block is slidably mounted inside the fixed sleeve. The film removal electric push rod is located between the sliding block and the inner top wall of the fixed sleeve. The side wall of the sliding block has symmetrically provided hinge seats. The hinge seats slide through the film removal sliding holes and extend out of the fixed sleeve. One end of the vacuum suction cup is rotatably connected to the center plate. The two ends of the hinge rod are respectively hinged to the top wall of the vacuum suction cup and the hinge seats. The film removal electric push rod extends and retracts to drive the sliding block to move up and down. The sliding block rotates by pushing and pulling the vacuum suction cup through the hinge rod.

[0017] The traversing mechanism is an electric slide table.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows: 1. By installing the material transfer and bonding mechanism and the material transfer and film removal mechanism at both ends of the same material transfer bracket, and cooperating with three workstations set at equal intervals, the actions of material picking, film tearing and bonding are carried out simultaneously. Within one workflow, the two mechanisms work at two workstations at the same time, which greatly improves production efficiency and reduces idle travel and waiting time.

[0019] 2. First, use two-way lead screw one and two-way lead screw two for large-stroke, fast coarse positioning. Then, use pneumatic elastic telescopic component one and pneumatic elastic telescopic component two for small-range, high-precision flexible fine adjustment. The L-shaped limit plates at the four corners, driven by the fine adjustment springs, precisely fit the four corners of the cover plate (panel) in a flexible buffering manner. The fine adjustment springs can provide fine displacement compensation and ensure that the clamping force is moderate, avoiding crushing the brittle LCD panel or glass cover plate, thus achieving high-precision elastic clamping and positioning.

[0020] 3. When the material transfer and bonding mechanism adsorbs the cover plate and moves it upward, the suction hole on the elastic positioning mechanism one adsorbs the protective film on the bottom of the cover plate, thus realizing the removal of the protective film on the bottom wall of the cover plate.

[0021] 4. The material transfer and film removal mechanism uses a hinge and a vacuum suction cup to flip the protective film on the upper surface of the panel with an oblique pulling force.

[0022] 5. The cross-shaped support frame not only supports the material, but also cleverly divides the positioning groove into four independent adjustment areas. The L-shaped limiting plate can hold the four corners of the material during precise positioning, and can also be pressed down when the material transfer and bonding mechanism is pressed down, without affecting the bonding action. Attached Figure Description

[0023] Figure 1 A schematic diagram of a panel bonding device for liquid crystal display production provided by the present invention; Figure 2 A schematic diagram of the structure of a panel bonding device for liquid crystal display production provided by the present invention from another perspective; Figure 3 A schematic diagram of the combined structure of the material transfer bracket, the material transfer bonding mechanism, and the material transfer film removal mechanism provided by the present invention; Figure 4 A schematic diagram of the combined structure of the material transfer bracket, material transfer bonding mechanism and material transfer film removal mechanism provided by the present invention from another perspective; Figure 5 This is a schematic diagram of the structure of the second elastic positioning mechanism provided by the present invention; Figure 6 A schematic diagram of the combined structure of the elastic positioning mechanism and the pneumatic film removal mechanism provided by the present invention; Figure 7 A cross-sectional view of the elastic positioning mechanism and the pneumatic film removal mechanism provided by the present invention; Figure 8 A schematic diagram of the combined structure of the key shaft, bidirectional lead screw, and positioning module provided by the present invention; Figure 9 A cross-sectional view of the key shaft, bidirectional lead screw, and positioning module provided by the present invention; Figure 10 A schematic diagram of the combined structure of the two-stage positioning mechanism and the bidirectional lead screw provided by the present invention; Figure 11 A schematic diagram of the combined structure of the key shaft, the bidirectional lead screw, and the transmission assembly provided by the present invention; Figure 12 A schematic diagram of the combined structure of the two-stage adjustment mechanism, guide slide, and bidirectional lead screw provided by the present invention; Figure 13 This is a cross-sectional view of a pneumatic elastic telescopic component provided by the present invention.

[0024] The components include: 1. Machine base; 2. Fixed frame; 3. Transverse movement mechanism; 4. Electric push rod; 5. Material transfer bracket; 6. Material transfer and bonding mechanism; 7. Material transfer and film removal mechanism; 8. Elastic positioning mechanism one; 9. Bonding base plate; 10. Elastic positioning mechanism two; 11. Pneumatic film removal mechanism; 12. Vacuum suction cup one; 13. Positioning groove; 14. Key shaft; 15. Bidirectional lead screw one; 16. Positioning module; 17. Two-stage adjustment mechanism; 18. Bidirectional lead screw two; 19. Two-stage positioning mechanism; 20. Key sleeve; 21. Transmission assembly; 22. Coarse adjustment slide one; 23. Fine adjustment slide one; 24. Pneumatic elastic telescopic component one; 25. Transmission cavity; 26. Guide slide rod; 27. Coarse adjustment slide two; 28. Fine adjustment slide two; 29. ​​Pneumatic elastic telescopic component two; 30. Support column; 31. Positioning support plate; 32. 33. Positioning slide plate; 34. L-shaped limiting plate; 35. Support spring; 36. Cylinder; 37. Piston; 38. Fine adjustment spring; 39. Fine adjustment rod; 40. Telescopic through hole; 41. Elastic air tube; 42. Pneumatic drive chamber; 43. Dual-purpose suction air pump I; 44. Bevel gear I; 45. Bevel gear II; 46. Concentric gear; 47. Transmission gear; 48. Coarse positioning motor I; 49. Coarse positioning motor II; 50. Support frame; 51. Dual-purpose suction air pump II; 52. Demeabilization negative pressure chamber; 53. Vacuum chamber; 54. Suction hole; 55. Demeabilization elastic hose; 56. Transfer top plate; 57. Vacuum suction cup II; 58. Fixing sleeve; 59. Center plate; 60. Vacuum suction cup III; 61. Hinge rod; 62. Push slide; 63. Demeabilization electric push rod; 64. Demeabilization sliding hole; 65. Hinge seat.

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0026] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] like Figures 1-13 As shown, the present invention provides a panel bonding device for liquid crystal display production. The panel bonding device for liquid crystal display production includes a machine base 1. A fixed frame 2 is provided on one side of the machine base 1. A transverse moving mechanism 3 is provided on the fixed frame 2 along the X-axis. An electric push rod 4 is provided on the transverse moving mechanism 3. An inverted U-shaped material transfer bracket 5 is provided at the bottom end of the electric push rod 4. A material transfer bonding mechanism 6 and a material transfer film removal mechanism 7 are respectively installed at both ends of the material transfer bracket 5. Three workstations are equidistantly arranged along the X-axis on the machine base 1. An elastic positioning mechanism 1 8, a bonding base plate 9, and an elastic positioning mechanism 2 10 are respectively installed on the three workstations. The length from the center of the material transfer bonding mechanism 6 to the center of the material transfer film removal mechanism 7 is equal to the length between the centers of two adjacent workstations. A pneumatic film removal mechanism 11 is provided on the elastic positioning mechanism 1 8. A vacuum suction cup 12 is embedded in the middle of the bottom wall of the material transfer bonding mechanism 6.

[0029] With the layout design of equal spacing, when the transverse mechanism 3 drives the transfer bracket 5 to move one station spacing along the sliding direction, the transfer bonding mechanism 6 and the transfer film removal mechanism 7 at both ends of the transfer bracket 5 can be switched to the adjacent station simultaneously.

[0030] The elastic positioning mechanism 8 is structurally identical to the elastic positioning mechanism 10. The elastic positioning mechanism 8 includes a positioning groove 13, a key shaft 14, a bidirectional lead screw 15, and a positioning module 16. The positioning groove 13 is a rectangular cavity with an open upper wall. The key shaft 14 and the bidirectional lead screw 15 are rotatably disposed within the positioning groove 13. The end of the key shaft 14 rotatably penetrates the side wall of the positioning groove 13 and extends out of the positioning groove 13. The end of the bidirectional lead screw 15 rotatably penetrates the side wall of the positioning groove 13 and extends out of the positioning groove 13. The bidirectional lead screw 15 and the key shaft 14 are arranged parallel to each other along the Y-axis. The two ends of the bidirectional lead screw 15 are symmetrically provided with threads of opposite directions. The positioning module 16 is symmetrically disposed at both ends of the bidirectional lead screw 15. The positioning module 16 includes a two-stage adjustment mechanism 17, a bidirectional lead screw 18, and a two-stage positioning mechanism 19. The two-stage adjustment mechanism 17 is slidably connected to the key shaft 14 and the bidirectional lead screw 18. The two-stage adjustment mechanisms 17 of the two positioning modules 16 are respectively threaded to both ends of the bidirectional lead screw 15. The bidirectional lead screw 18 rotates through the two-stage adjustment mechanism 17 along the X-axis. The bidirectional lead screw 18 is perpendicular to the bidirectional lead screw 15. The two ends of the bidirectional lead screw 18 are symmetrically provided with threads of opposite directions. The two-stage positioning mechanisms 19 are symmetrically slidably arranged on both sides of the two-stage adjustment mechanism 17. The two symmetrically arranged two-stage positioning mechanisms 19 are respectively threaded to both ends of the bidirectional lead screw 18. The two-stage adjustment mechanism 17 is rotatably provided with a key sleeve 20 that cooperates with the key shaft 14. The key shaft 14 slides through the key sleeve 20. The key shaft 14 and the key sleeve 20 mesh with each other. A transmission component 21 is connected between the bidirectional lead screw 18 and the key sleeve 20. Each positioning groove 13 is provided with four two-stage positioning mechanisms 19. The four two-stage positioning mechanisms 19 are symmetrically slidably arranged in pairs at the four corners of the positioning groove 13.

[0031] The two-stage adjustment mechanism 17 includes a coarse adjustment slide 22, a fine adjustment slide 23, and a pneumatic elastic telescopic component 24. The coarse adjustment slide 22 is threadedly connected to a bidirectional lead screw 15. The key shaft 14 is slidably connected to the coarse adjustment slide 22. The fine adjustment slide 23 is slidably connected to the bidirectional lead screw 15. The key sleeve 20 rotates through the fine adjustment slide 23 along the Y-axis. The key shaft 14 slides through the key sleeve 20. The bidirectional lead screw 18 rotates through the fine adjustment slide 23. The pneumatic elastic telescopic component 24 is located between the coarse adjustment slide 22 and the fine adjustment slide 23. The fine adjustment slide 23 has a transmission cavity 25. The transmission assembly 21 is located in the transmission cavity 25. The key sleeve 20 and the bidirectional lead screw 18 extend into the transmission cavity 25. The key sleeve 20 and the bidirectional lead screw 18 are arranged perpendicularly.

[0032] The fine-adjustment slide block 23 has symmetrical guide slide rods 26 on both sides. The guide slide rods 26 are arranged parallel to the double-acting lead screw 18. The two-stage positioning mechanism 19 includes a coarse-adjustment slide block 27, a fine-adjustment slide block 28, a pneumatic elastic telescopic component 29, a support column 30, a positioning support plate 31, a positioning slide plate 32, and an L-shaped limiting plate 33. The coarse-adjustment slide block 27 is slidably connected to the double-acting lead screw 18 and the guide slide rods 26. The coarse-adjustment slide blocks 27 of the two symmetrically arranged two-stage positioning mechanisms 19 are respectively threaded to both ends of the double-acting lead screw 18. The fine-adjustment slide blocks 28 are respectively slidably connected to the double-acting lead screw 18 and the guide slide rods 26. The pneumatic elastic telescopic component 29 is located on the coarse-adjustment slide block 28. Between 27 and the fine-tuning slide 28, the support column 30 is fixedly installed on the upper wall of the fine-tuning slide 28, the positioning support plate 31 is installed on the upper end of the support column 30, and the positioning slide plate 32 is slidably installed on the support column 30 and installed below the positioning support plate 31. A support spring 34 is provided between the fine-tuning slide 28 and the positioning slide plate 32. The support spring 34 makes the positioning slide plate 32 always maintain the tendency to slide towards the positioning support plate 31. The L-shaped limiting plate 33 is fixedly installed on the upper wall of the positioning slide plate 32, and the positioning support plate 31 is installed inside the L-shaped limiting plate 33. The bottom wall of the positioning groove 13 is provided with an air cavity, which is connected to each pneumatic elastic telescopic member 24 and each pneumatic elastic telescopic member 29 respectively.

[0033] The pneumatic elastic telescopic component 24 and the pneumatic elastic telescopic component 29 have the same structure. The pneumatic elastic telescopic component 24 includes a cylinder 35, a piston 36, a fine-adjustment spring 37, and a fine-adjustment rod 38. The piston 36 is slidably sealed inside the cylinder 35. One end of the cylinder 35 has a telescopic through hole 39. One end of the fine-adjustment rod 38 is fixedly connected to the piston 36. The other end of the fine-adjustment rod 38 passes through the telescopic through hole 39 and extends out of the cylinder 35. The end of the cylinder 35 away from the telescopic through hole 39 is connected to an elastic air tube 40. The fine-adjustment spring 37 is located at the end of the fine-adjustment rod 38 away from the piston 36. The air chamber has a pneumatic drive chamber 41. The side wall of the positioning groove 13 has a suction dual-purpose air pump 42. The suction dual-purpose air pump 42 is connected to the pneumatic drive chamber 41. The elastic air tube 40 is connected to the pneumatic drive chamber 41.

[0034] The cylinder 35 of the first pneumatic elastic telescopic component 24 is fixedly inserted through the fine adjustment slide 23, and the fine adjustment spring 37 of the first pneumatic elastic telescopic component 24 is connected to the coarse adjustment slide 22. The cylinder 35 of the second pneumatic elastic telescopic component 29 is fixedly inserted through the coarse adjustment slide 27, and the fine adjustment spring 37 of the second pneumatic elastic telescopic component 29 is fixedly connected to the fine adjustment slide 28.

[0035] The transmission assembly 21 includes a first bevel gear 43, a second bevel gear 44, a concentric gear 45, and a transmission gear 46. The first bevel gear 43 is coaxially fixed to the key sleeve 20. The concentric gear 45 is rotatably disposed in the transmission cavity 25. The second bevel gear 44 is coaxially fixed to the side wall of the concentric gear 45 and meshes with the first bevel gear 43. The transmission gear 46 is coaxially fixed to the second bidirectional lead screw 18 and is disposed in the transmission cavity 25. The transmission gear 46 meshes with the concentric gear 45.

[0036] The sidewall of the positioning groove 13 is provided with a coarse positioning motor 47 and a coarse positioning motor 48. The output shaft of the coarse positioning motor 47 is coaxially fixed to the bidirectional lead screw 15, and the output shaft of the coarse positioning motor 48 is coaxially fixed to the key shaft 14.

[0037] The upper end of the positioning groove 13 is provided with a cross-shaped support frame 49, which divides the positioning groove 13 into four adjustment zones. Each adjustment zone is provided with a two-stage positioning mechanism 19. The height from the upper wall of the support frame 49 to the bottom wall of the positioning groove 13 is equal to the height from the upper wall of the positioning support plate 31 to the bottom wall of the positioning groove 13. When clamping and positioning, the cover plate can be placed on the support frame 49 first, and then the four two-stage positioning mechanisms 19 can be driven to move to clamp and position the cover plate or panel.

[0038] The pneumatic membrane removal mechanism 11 includes a suction-absorption dual-purpose air pump 50 and a membrane removal negative pressure chamber 51. The membrane removal negative pressure chamber 51 is located inside the air chamber. The positioning support plate 31 of the elastic positioning mechanism 8 is provided with a vacuum chamber 52. Suction holes 53 are evenly distributed on the top wall of the positioning support plate 31 of the elastic positioning mechanism 8. The suction holes 53 are connected to the vacuum chamber 52. The suction-absorption dual-purpose air pump 50 is located on the side wall of the positioning groove 13. A membrane removal elastic hose 54 is provided between the membrane removal negative pressure chamber 51 and each vacuum chamber 52.

[0039] The material transfer and bonding mechanism 6 includes a material transfer top plate 55 located at the bottom of the material transfer bracket 5. The material transfer top plate 55 is adapted to the bonding bottom plate 9. A vacuum suction cup 56 is embedded in the middle of the top wall of the bonding bottom plate 9. When the material transfer top plate 55 moves above the bonding bottom plate 9, the cover plate adsorbed by the bottom wall of the material transfer top plate 55 is aligned with the panel material on the bonding bottom plate 9, so that the material transfer top plate 55 can bond the cover plate to the panel material on the bonding bottom plate 9.

[0040] The material transfer and film removal mechanism 7 includes a fixed sleeve 57, a center plate 58, a vacuum suction cup 59, a hinge rod 60, a sliding block 61, and a film removal electric push rod 62. The center plate 58 is fixedly mounted on the end of the material transfer bracket 5 away from the material transfer and bonding mechanism 6. The fixed sleeve 57 is fixedly mounted on the middle of the upper wall of the center plate 58. The side wall of the fixed sleeve 57 is symmetrically provided with film removal sliding holes 63. The sliding block 61 is slidably mounted inside the fixed sleeve 57. The film removal electric push rod 62 is mounted on the sliding block 60. Between the inner top wall of the fixed sleeve 57 and the push slide 61, hinge seats 64 are symmetrically provided on the side wall of the push slide 61. The hinge seats 64 slide through the film removal sliding hole 63 and extend out of the fixed sleeve 57. One end of the vacuum suction cup 59 is rotatably connected to the center plate 58. The two ends of the hinge rod 60 are respectively hinged to the top wall of the vacuum suction cup 59 and the hinge seat 64. The push slide 61 moves up and down by extending and retracting the film removal electric push rod 62. The push slide 61 rotates by pushing and pulling the vacuum suction cup 59 through the hinge rod 60.

[0041] In this embodiment, the transverse mechanism 3 adopts an electric slide table, and the dual-purpose suction and suction air pump one (42) and dual-purpose suction and suction air pump two (50) are both bidirectional air pumps that can switch between suction and inflation functions. By controlling the forward and reverse rotation of their motors or cooperating with the reversing valve, the pneumatic drive chamber (41) and the membrane removal negative pressure chamber (51) can be vacuumed or pressurized. The electric slide table, dual-purpose suction and suction air pump one 42 and dual-purpose suction and suction air pump two 50, vacuum suction cup one 12, vacuum suction cup two 56, and vacuum suction cup three 59 all adopt mature existing components in the field, which will not be described in detail here.

[0042] In practical use, the cover plate is placed on the support frame 49 of the elastic positioning mechanism 18, and the panel to be fitted is placed on the support frame 49 of the elastic positioning mechanism 20. At this time, the cover plate and the panel are suspended above the positioning groove 13, which facilitates subsequent four-corner clamping. The coarse positioning motor 47 in the elastic positioning mechanism 18 and the elastic positioning mechanism 20 is started. The coarse positioning motor 47 of the elastic positioning mechanism 18 (elastic positioning mechanism 20) drives the bidirectional lead screw 15 to rotate. The bidirectional lead screw 15 drives the coarse adjustment slides 22 at both ends of its symmetrical ends to move closer to each other along the Y-axis, so that the four two-stage positioning mechanisms 19 move closer to the side wall of the cover plate (panel) along the Y-axis. When the edge of the cover plate (panel) moves above the positioning support plate 31, the coarse positioning is controlled. The first positioning motor 47 stops rotating, completing the initial longitudinal positioning. Then, the coarse positioning motor 48 of the elastic positioning mechanism 18 (elastic positioning mechanism 2 10) is activated. The coarse positioning motor 48 drives the key shaft 14 to rotate. The key shaft 14 drives the bevel gear 43 to rotate through the key sleeve 20. The bevel gear 43 drives the concentric gear 45 to rotate through the bevel gear 44. The concentric gear 45 drives the double-acting screw 18 to rotate through the transmission gear 46. The two double-acting screws 18 rotate synchronously and in the same direction. The double-acting screws 18 drive the coarse adjustment slide 27 to move closer to each other along the X-axis. When all edges of the cover plate (panel) have moved above the positioning support plate 31, the coarse positioning motor 48 stops rotating. At this time, the four two-stage positioning mechanisms 19 have completed the positioning of the material on all four sides. Initially, the material is gathered together and roughly positioned by using L-shaped limiting plates 33 to hold the edges of the material from the four corners. Then, the dual-purpose suction and extraction air pump 42 is started to extract air. Initially, the pneumatic elastic telescopic components 24 and 29 are in the extended state, and the piston 36 is located at the end of the cylinder 35 near the telescopic through-hole 39. The fine adjustment rod 38 extends out of the cylinder 35. When the dual-purpose suction and extraction air pump 42 extracts air, the pneumatic drive chamber 41 generates negative pressure, which is generated in the cylinder 35 through the elastic air tube 40. This negative pressure drives the piston 36 to slide away from the telescopic through-hole 39 along the cylinder 35. The piston 36 drives the fine adjustment rod 38 to retract into the cylinder 35, causing the pneumatic elastic telescopic components 24 and 29 to contract. When the pneumatic elastic telescopic component 24 contracts, it is driven by the fine adjustment spring 37. Fine-tuning slide 23 slides along key shaft 14 towards coarse-tuning slide 22. When pneumatic elastic telescopic component 29 retracts, fine-tuning spring 37 pulls fine-tuning slide 28 along guide slide 26 towards coarse-tuning slide 27. During this fine-tuning process, the L-shaped limiting plates 33 at the four corners, driven by fine-tuning spring 37, precisely fit the four corners of the cover plate (panel) in a flexible buffering manner. Fine-tuning spring 37 can provide fine displacement compensation and ensure moderate clamping force to avoid crushing the brittle LCD panel or glass cover plate, achieving high-precision elastic clamping and positioning. Then, the electric push rod 4 and the suction dual-purpose air pump 50 are started. Initially, the material transfer and film removal mechanism 7 is located above the elastic positioning mechanism 10, and the material transfer and bonding mechanism 6 is located above the bonding base plate 9.The electric push rod 4 extends, driving the material transfer and bonding mechanism 6 and the material transfer and film removal mechanism 7 downwards via the material transfer bracket 5. This causes the vacuum suction cup 3 59 to move downwards and approach the panel already positioned on the elastic positioning mechanism 2 10. Simultaneously, the suction dual-purpose air pump 2 50 draws air through the film removal negative pressure chamber 51 and the film removal elastic hose 54 to generate negative pressure in the vacuum chamber 52. This causes the suction hole 53 to adsorb the protective film of the cover plate already positioned on the elastic positioning mechanism 1 8, fixing the cover plate on the elastic positioning mechanism 1 8 without shifting. Then, the vacuum suction cup 3 59 is activated, adsorbing the upper surface of the panel, and the electric push rod 4 is controlled to retract. The electric push rod 4 drives the vacuum suction cup 3 59 upwards, lifting the panel upwards from the elastic positioning mechanism 2 10 and detaching it from the elastic positioning mechanism 2 10. The transverse movement mechanism 3 is then activated. 3. Move the transfer bracket 5 one standard workstation distance horizontally, move the transfer film removal mechanism 7 above the bonding base plate 9, and move the transfer bonding mechanism 6 onto the elastic positioning mechanism 8. Then, control the electric push rod 4 to move downwards, so that the transfer bonding mechanism 6 and the transfer film removal mechanism 7 are close to the elastic positioning mechanism 8 and the bonding base plate 9, respectively. When the transfer bonding mechanism 6 moves downwards, it pushes the L-shaped limiting plate 33 to drive the positioning slide plate 32 to move downwards against the elastic force of the support spring 34, so that the cover plate is exposed. The vacuum suction cup 12 on the bottom wall of the transfer bonding mechanism 6 is in close contact with the cover plate. The transfer film removal mechanism 7 presses down, places the panel on the bonding base plate 9, and activates the vacuum suction cup 56 to pick up and fix the panel from the bottom. At this time, the panel is clamped between the bonding base plate 9 and the transfer film removal mechanism 7. The film-removing electric push rod 62 is activated to retract, which in turn moves the sliding block 61 upward. The sliding block 61, through the hinge rod 60, pulls the symmetrically arranged vacuum suction cups 59 upward, causing them to flip. The vacuum suction cups 59 completely tear off the protective film from the panel surface using an oblique pulling force. At the same time, the vacuum suction cup 12 is activated, and the vacuum suction cup 12 on the bottom wall of the material transfer and bonding mechanism 6 adheres to the cover plate. Then, the electric push rod 4 is controlled to retract, which causes the material transfer and film removal mechanism 7 and the material transfer and bonding mechanism 6 to move upward from the bonding base plate 9 and the elastic positioning mechanism 8, respectively. The electric push rod 4 causes the vacuum suction cups 59 and the panel protective film adhered by the vacuum suction cups 59 to detach from the panel. Simultaneously, the material transfer and bonding mechanism 6 causes the cover plate to move upward. Due to the vacuum suction cups 11... 2. The protective film on the bottom wall of the cover plate is adsorbed by the suction hole 53 of the elastic positioning mechanism 18. As the material transfer and bonding mechanism 6 rises, the protective film on the bottom wall of the cover plate is peeled off in place. The dual-purpose suction pump 2 50 and vacuum suction cup 3 59 are stopped, and the suction hole 53 and vacuum suction cup 3 59 lose their suction force. The waste film is removed from the suction hole 53 and vacuum suction cup 3 59 respectively. At the same time, the dual-purpose suction pump 1 42 is started to inflate, so that the pneumatic elastic telescopic component 1 24 and pneumatic elastic telescopic component 2 29 are reset, which is convenient for the next clamping and positioning. Then, the transverse movement mechanism 3 is controlled to drive the material transfer bracket 5 to move another station spacing, move the material transfer and bonding mechanism 6 above the bonding base plate 9, and move the material transfer and film removal mechanism 7 onto the elastic positioning mechanism 2 10.At this point, the material transfer and film removal mechanism 7 prepares for the next cycle of material handling. The electric push rod 4 is controlled to move downwards, and the vacuum suction cup 12 pulls the cover plate, from which the bottom film has been removed, precisely lowering it to the bonding base plate 9. It then precisely aligns and presses the cover plate with the panel substrate, from which the top film has been removed, completing the integrated process of automatic film removal and bonding. The vacuum suction cup 12 is released, and the electric push rod 4 retracts and resets, facilitating the next positioning and bonding operation.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

[0045] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A panel bonding device for producing a liquid crystal display screen, comprising a machine base (1), a fixed frame (2) provided on one side of the machine base (1), and a transverse moving mechanism (3) provided on the fixed frame (2) along the X-axis direction, characterized in that: The transverse mechanism (3) is provided with an electric push rod (4), and the bottom end of the electric push rod (4) is provided with an inverted U-shaped transfer bracket (5). The two ends of the transfer bracket (5) are respectively equipped with a transfer bonding mechanism (6) and a transfer film removal mechanism (7). The machine base (1) is provided with three workstations equidistantly along the X-axis. The three workstations are respectively equipped with an elastic positioning mechanism one (8), a bonding base plate (9) and an elastic positioning mechanism two (10). The length from the center of the transfer bonding mechanism (6) to the center of the transfer film removal mechanism (7) is equal to the length between the centers of two adjacent workstations. The elastic positioning mechanism one (8) is provided with a pneumatic film removal mechanism (11). The bottom wall of the transfer bonding mechanism (6) is embedded with a vacuum suction cup one (12).

2. The panel bonding device for liquid crystal display production according to claim 1, characterized in that: The first elastic positioning mechanism (8) has the same structure as the second elastic positioning mechanism (10). The first elastic positioning mechanism (8) includes a positioning groove (13), a key shaft (14), a bidirectional lead screw (15), and a positioning module (16). The positioning groove (13) is a rectangular cavity with an open upper wall. The key shaft (14) and the bidirectional lead screw (15) are rotatably disposed in the positioning groove (13). The end of the key shaft (14) rotatably passes through the side wall of the positioning groove (13) and extends out of the positioning groove (13). The end of the first bidirectional lead screw (15) rotates through the side wall of the positioning groove (13) and extends out of the positioning groove (13). The first bidirectional lead screw (15) and the key shaft (14) are arranged parallel to each other along the Y-axis. The two ends of the first bidirectional lead screw (15) are symmetrically provided with threads of opposite directions. The positioning module (16) is symmetrically arranged at both ends of the first bidirectional lead screw (15). The positioning module (16) includes a two-stage adjustment mechanism (17), a second bidirectional lead screw (18), and a two-stage positioning mechanism (19). The mechanism (17) is slidably connected to the key shaft (14) and the second bidirectional lead screw (18). The two-stage adjustment mechanisms (17) of the two symmetrically arranged positioning modules (16) are respectively threaded to both ends of the first bidirectional lead screw (15). The second bidirectional lead screw (18) rotates along the X-axis and passes through the two-stage adjustment mechanism (17). The second bidirectional lead screw (18) is perpendicular to the first bidirectional lead screw (15). The two ends of the second bidirectional lead screw (18) are symmetrically provided with threads of opposite directions. The two-stage positioning mechanism (19) Symmetrically sliding on both sides of the two-stage adjustment mechanism (17), the two symmetrically arranged two-stage positioning mechanisms (19) are respectively threaded to both ends of the two-way lead screw (18). The two-stage adjustment mechanism (17) is rotatably connected to a key sleeve (20) that cooperates with the key shaft (14). The key shaft (14) slides through the key sleeve (20), and the key shaft (14) and the key sleeve (20) mesh with each other. A transmission assembly (21) is connected between the two-way lead screw (18) and the key sleeve (20).

3. The panel bonding device for liquid crystal display production according to claim 2, characterized in that: The two-stage adjustment mechanism (17) includes a coarse adjustment slide (22), a fine adjustment slide (23), and a pneumatic elastic telescopic component (24). The coarse adjustment slide (22) is threadedly connected to a two-way lead screw (15), the key shaft (14) is slidably connected to the coarse adjustment slide (22), and the fine adjustment slide (23) is slidably connected to the two-way lead screw (15). The key sleeve (20) rotates through the fine adjustment slide (23) along the Y-axis, and the key shaft (14) slides through the fine adjustment slide (23). Inside the key sleeve (20), the second bidirectional lead screw (18) rotates through the first fine adjustment slide (23). The first pneumatic elastic telescopic component (24) is located between the first coarse adjustment slide (22) and the first fine adjustment slide (23). The first fine adjustment slide (23) has a transmission cavity (25). The transmission component (21) is located inside the transmission cavity (25). The key sleeve (20) and the second bidirectional lead screw (18) extend into the transmission cavity (25). The key sleeve (20) and the second bidirectional lead screw (18) are arranged vertically.

4. The panel bonding device for liquid crystal display production according to claim 3, characterized in that: The fine-tuning slide block one (23) is symmetrically provided with guide slide rods (26) on both sides. The guide slide rods (26) are arranged parallel to the two-way lead screw two (18). The two-stage positioning mechanism (19) includes a coarse-tuning slide block two (27), a fine-tuning slide block two (28), a pneumatic elastic telescopic component two (29), a support column (30), a positioning support plate (31), a positioning slide plate (32), and an L-shaped limiting plate (33). The coarse-tuning slide block two (27) is slidably connected to the two-way lead screw two (18) and the guide slide rod (26). The coarse-tuning slide block two (27) of the two symmetrically arranged two-stage positioning mechanisms (19) is threadedly connected to both ends of the two-way lead screw two (18). The fine-tuning slide block two (28) is slidably connected to the two-way lead screw two (18) and the guide slide rod (26). The second pneumatic elastic telescopic component (29) is located between the second coarse adjustment slide (27) and the second fine adjustment slide (28). The support column (30) is fixedly located on the upper wall of the second fine adjustment slide (28). The positioning support plate (31) is located on the upper end of the support column (30). The positioning slide plate (32) is slidably located on the support column (30) and located below the positioning support plate (31). A support spring (34) is provided between the second fine adjustment slide (28) and the positioning slide plate (32). The L-shaped limiting plate (33) is fixedly located on the upper wall of the positioning slide plate (32). The positioning support plate (31) is located inside the L-shaped limiting plate (33). The bottom wall of the positioning groove (13) is provided with an air cavity. The air cavity is connected to each first pneumatic elastic telescopic component (24) and each second pneumatic elastic telescopic component (29).

5. The panel bonding device for liquid crystal display production according to claim 4, characterized in that: The pneumatic elastic telescopic component one (24) and the pneumatic elastic telescopic component two (29) have the same structure. The pneumatic elastic telescopic component one (24) includes a cylinder (35), a piston (36), a fine-adjusting spring (37), and a fine-adjusting rod (38). The piston (36) is slidably sealed inside the cylinder (35). One end of the cylinder (35) is provided with a telescopic through hole (39). One end of the fine-adjusting rod (38) is fixedly connected to the piston (36), and the other end of the fine-adjusting rod (38) passes through the telescopic through hole (39). 9) Extend the cylinder (35), the end of the cylinder (35) away from the telescopic through hole (39) is connected to the elastic air tube (40), the fine adjustment spring (37) is located at the end of the fine adjustment rod (38) away from the piston (36), the air chamber is provided with a pneumatic drive chamber (41), the side wall of the positioning groove (13) is provided with a suction dual-purpose air pump (42), the suction dual-purpose air pump (42) is connected to the pneumatic drive chamber (41), and the elastic air tube (40) is connected to the pneumatic drive chamber (41).

6. The panel bonding device for liquid crystal display production according to claim 5, characterized in that: The transmission assembly (21) includes a first bevel gear (43), a second bevel gear (44), a concentric gear (45), and a transmission gear (46). The first bevel gear (43) is coaxially fixed to the key sleeve (20). The concentric gear (45) is rotatably disposed in the transmission cavity (25). The second bevel gear (44) is coaxially fixed to the side wall of the concentric gear (45). The second bevel gear (44) meshes with the first bevel gear (43). The transmission gear (46) is coaxially fixed to the second double-acting screw (18). The transmission gear (46) is disposed in the transmission cavity (25) and meshes with the concentric gear (45).

7. The panel bonding device for liquid crystal display production according to claim 6, characterized in that: The sidewall of the positioning groove (13) is provided with a coarse positioning motor one (47) and a coarse positioning motor two (48). The output shaft of the coarse positioning motor one (47) is coaxially fixed to the double-acting lead screw one (15), and the output shaft of the coarse positioning motor two (48) is coaxially fixed to the key shaft (14).

8. The panel bonding device for liquid crystal display production according to claim 7, characterized in that: The upper end of the positioning groove (13) is provided with a cross-shaped support frame (49). The cross-shaped support frame (49) divides the positioning groove (13) into four adjustment zones. Each adjustment zone is provided with a two-stage positioning mechanism (19). The height of the upper wall of the support frame (49) to the bottom wall of the positioning groove (13) is equal to the height of the upper wall of the positioning support plate (31) to the bottom wall of the positioning groove (13).

9. A panel bonding device for liquid crystal display production according to claim 8, characterized in that: The pneumatic membrane removal mechanism (11) includes a suction dual-purpose air pump (50) and a membrane removal negative pressure chamber (51). The membrane removal negative pressure chamber (51) is located in the air chamber. The positioning support plate (31) of the elastic positioning mechanism (8) is provided with a vacuum chamber (52). The top wall of the positioning support plate (31) of the elastic positioning mechanism (8) is evenly provided with suction holes (53). The suction holes (53) are connected to the vacuum chamber (52). The suction dual-purpose air pump (50) is located on the side wall of the positioning groove (13). The membrane removal negative pressure chamber (51) is connected to each vacuum chamber (52) by a membrane removal elastic hose (54).

10. A panel bonding device for liquid crystal display production according to claim 9, characterized in that: The material transfer and bonding mechanism (6) includes a material transfer top plate (55) located at the bottom of the material transfer bracket (5), which is adapted to the bonding bottom plate (9). A vacuum suction cup (56) is embedded in the middle of the top wall of the bonding bottom plate (9). The material transfer and film removal mechanism (7) includes a fixed sleeve (57), a center plate (58), a vacuum suction cup (59), a hinge rod (60), a sliding block (61), and a film removal electric push rod (62). The center plate (58) is fixedly located at the end of the material transfer bracket (5) away from the material transfer and bonding mechanism (6), and the fixed sleeve (57) is fixedly located on the center plate (58). The fixed sleeve (57) has symmetrically provided film removal sliding holes (63) on its side wall. The push slide (61) is slidably disposed in the fixed sleeve (57). The film removal electric push rod (62) is disposed between the push slide (61) and the inner top wall of the fixed sleeve (57). The push slide (61) has symmetrically provided hinge seats (64) on its side wall. The hinge seats (64) slide through the film removal sliding holes (63) and extend out of the fixed sleeve (57). One end of the vacuum suction cup (59) is rotatably connected to the center plate (58). The two ends of the hinge rod (60) are respectively hinged to the top wall of the vacuum suction cup (59) and the hinge seat (64).

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