Film covering device and method for liquid crystal display screen production

Abstract

The invention discloses a liquid crystal display screen production film covering device which comprises a cushion block, the cushion block is sleeved with a protective cover, the top of the protective cover is connected with a cover plate through bolts, a movable door is installed on the front side of the protective cover, a movable groove is formed in the top of the cushion block, and a translation block is slidably connected into the movable groove; the top of the translation block is connected with a shell through a bolt, the top and the bottom of the shell are open, a placement block is arranged in the middle of the interior of the shell, the bottom of the placement block is connected to the top of a cushion block through a bolt, and the top of the cover plate is connected with an electric push rod in a penetrating mode; and the bottom end of the electric push rod is connected with an inverted U-shaped plate through a bolt. According to the technical scheme, through mutual cooperation of the inverted-U-shaped plate, the mounting plate, the pressing box body, the air spraying holes and other components, effective pressing and heat sealing can be conducted while film covering is conducted, so that a film can be effectively attached to a display screen, and the film covering efficiency and the use efficiency of the film covering device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display production, and particularly relates to a film laminating device and method for liquid crystal display production. Background Art

[0002] A liquid crystal display is a flat panel display technology that uses the optical properties of liquid crystal molecules to display images. Its core principle is to control the alignment direction of liquid crystal molecules through an electric field, thereby adjusting the light transmittance to form an image. The film laminating device for liquid crystal display production is an automated device used to accurately attach a protective film or functional film (such as an anti-scratch film, an anti-reflection film) to the surface of the display screen. Its core function is to improve the surface quality and durability of the screen, while optimizing production efficiency and yield.

[0003] However, the existing film laminating devices for liquid crystal display production cannot perform effective pressing and heat sealing while laminating the film during use, so that the film cannot be effectively attached to the display screen, reducing its film laminating efficiency and service efficiency. Moreover, the film cannot be positioned synchronously while pressing, making it prone to position deviation during the film laminating process, and thus unable to accurately and effectively laminate the film, reducing its accuracy and working efficiency. Therefore, we propose a film laminating device and method for liquid crystal display production. Summary of the Invention

[0004] The purpose of the present invention is to at least solve one of the technical problems existing in the prior art, and provide a film laminating device and method for liquid crystal display production, which can perform effective pressing and heat sealing while laminating the film, so that the film can be effectively attached to the display screen, improving its film laminating efficiency and service efficiency. Moreover, the film can be positioned synchronously while pressing, making it not prone to position deviation during the film laminating process, and thus able to accurately and effectively laminate the film, improving its accuracy and working efficiency.

[0005] To achieve the above purpose, a film laminating device for liquid crystal display production is provided, including: a cushion block, a protective cover is sleeved outside the cushion block, and the top of the protective cover is connected to a cover plate by bolts, and a movable door is installed on the front side of the protective cover. An activity groove is opened at the top of the cushion block, and a translation block is slidably connected in the activity groove. The top of the translation block is connected to a housing by bolts, and the top and bottom of the housing are respectively open. A placement block is arranged in the middle of the housing, and the bottom of the placement block is connected to the top of the cushion block by bolts. An electric push rod is connected through the top of the cover plate, and the bottom end of the electric push rod is connected to an inverted U-shaped plate by bolts. An installation plate is slidably connected near the bottom inside the inverted U-shaped plate, and cutting knives are respectively connected to the bottom of the installation plate near the left and right sides by bolts.

[0006] According to the film laminating device for liquid crystal display production described above, a pressing box body is bolted to the bottom of the mounting plate, and a through groove is formed at the bottom of the pressing box body. A hot air blower is bolted to the top of the mounting plate, and the air outlet at the bottom of the mounting plate is communicated with the inside of the pressing box body. A plurality of uniformly distributed air spraying holes are formed at the bottom of the pressing box body.

[0007] According to the film laminating device for liquid crystal display production described above, an electric telescopic rod is bolted to the top of the inner cavity of the inverted U-shaped plate, and the bottom end of the electric telescopic rod is bolted to the top of the hot air blower.

[0008] According to the film laminating device for liquid crystal display production described above, positioning blocks are respectively arranged on the left and right sides of the placing block, and a movable plate is bolted to the bottom of the positioning block. The bottom of the movable plate is slidably connected to the top of the translation block. An installation groove is formed at the bottom of the side wall of the placing block, and a double-headed electric cylinder is bolted in the installation groove. The push rods on both sides of the double-headed electric cylinder are respectively bolted to the side walls of the two movable plates.

[0009] According to the film laminating device for liquid crystal display production described above, support plates are respectively bolted to the bottom of the cushion block near the left and right sides, and a cover body is bolted to the bottom of the cushion block. The top of the cover body is open. A nut is slidably connected in the cover body, and the top of the nut is bolted to the bottom of the translation block. A lead screw is inserted into the nut, and the left and right ends of the lead screw are respectively movably connected to the left and right inner side walls of the cover body through bearings. A servo motor is bolted to the right side of the cover body, and the right end of the lead screw passes through the inner ring of the bearing and is connected to the output shaft of the lead screw.

[0010] According to the film laminating device for liquid crystal display production described above, support plates are respectively bolted to the top of the cushion block near the left side in the front-back direction, and a support groove is formed on the top of the support plate. L-shaped rods are respectively bolted to the left side of the support plate in the front-back direction, and an arc-shaped clamping plate is bolted to the bottom end of the L-shaped rod.

[0011] According to the film laminating device for liquid crystal display production described above, an L-shaped clamping plate is slidably connected to the outer wall of the right side of the shell, and an L-shaped connecting plate is bolted to the right side near the top of the L-shaped clamping plate. The left side of the L-shaped connecting plate is bolted to the outer wall of the right side of the inverted U-shaped plate.

[0012] According to the film laminating device for liquid crystal display production described above, cross plates are respectively slidably connected to the top of the inverted U-shaped plate near the left and right sides, and the side of the cross plate away from the inverted U-shaped plate is slidably connected to the inner wall of the protective cover. A knife groove matching the cutting knife is formed on the positioning block.

[0013] Usage method of a film laminating device and method for producing a liquid crystal display screen, comprising the following steps: S1: First, open the movable door on the protective cover, then place the roll film in two support grooves, and place the liquid crystal display screen on the placement block; S2: Then, the double-headed electric cylinder contracts and drives the two movable plates to close, and the two movable plates drive the two positioning blocks to clamp the liquid crystal display screen; S3: Next, pull the roll film so that the film adheres to the top of the liquid crystal display screen, then the electric push rod extends and drives the cutting knife to move downward through the inverted U-shaped plate and the mounting plate, and drives the L-shaped clamping plate to press the film tightly through the L-shaped connecting plate; S4: At this time, the cutting knife enters the knife groove to cut off the film, and the electric telescopic rod extends downward and covers the liquid crystal display screen through the hot air blower and the mounting plate so that the through groove covers it; S5: Subsequently, the hot air blower sprays hot air through the air spray holes, enabling effective pressing and heat sealing while laminating the film.

[0014] The above solution has at least one of the following beneficial effects: 1. Through the mutual cooperation among components such as the inverted U-shaped plate, the mounting plate, the pressing box body, and the air spray holes in this technical solution, it can effectively perform pressing and heat sealing while laminating the film, so that the film can effectively adhere to the display screen, improving its film laminating efficiency and service efficiency; 2. Through the mutual cooperation among components such as the L-shaped connecting plate, the L-shaped clamping plate, the positioning block, and the movable plate in this technical solution, it can synchronously position the film while pressing, making it not prone to position deviation during the film laminating process, and further enabling accurate and effective film lamination, improving its accuracy and work efficiency.

[0015] Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the drawings and embodiments; Figure 1 Is the front perspective view of the present invention; Figure 2 Is Figure 1 The cross-sectional structure schematic diagram of; Figure 3 Is Figure 2 The enlarged view at A in; Figure 4 Is Figure 1 The partial perspective view of components such as the translation block and the movable groove in; Figure 5 Is Figure 2Enlarged view at position B in Figure 6 is Figure 1 Partial perspective view of the positioning block and other components in Figure 7 is Figure 1 Partial perspective view of the pallet and the bracket and other components in

[0017] Legend: 1. Spacer block; 2. Protective cover; 3. Cover plate; 4. Electric push rod; 5. Support plate; 6. Servo motor; 7. Housing; 8. Shell; 9. Movable plate; 10. Pallet; 11. Arc-shaped clamping plate; 12. Bracket; 13. L-shaped rod; 14. Movable groove; 15. Positioning block; 16. Knife groove; 17. Placing block; 18. Air injection hole; 19. Through groove; 20. Cutting knife; 21. Pressing box body; 22. Mounting plate; 23. Hot air blower; 24. Electric telescopic rod; 25. Inverted U-shaped plate; 26. Horizontal plate; 27. L-shaped connecting plate; 28. L-shaped clamping plate; 29. Mounting groove; 30. Double-headed electric cylinder; 31. Nut; 32. Translation block; 33. Lead screw. Detailed implementation mode

[0018] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0019] Embodiment 1 Referring to Figures 1 to 7 , in the present invention, an embodiment of a film laminating device for liquid crystal display production includes a spacer block 1, a protective cover 2 is sleeved outside the spacer block 1, and a cover plate 3 is connected to the top of the protective cover 2 by bolts. And a movable door is installed on the front side of the protective cover 2. A movable groove 14 is opened at the top of the spacer block 1, and a translation block 32 is slidably connected in the movable groove 14. The top of the translation block 32 is connected to a shell 8 by bolts, and the top and bottom of the shell 8 are respectively open. A placing block 17 is arranged in the middle of the shell 8, and the bottom of the placing block 17 is connected to the top of the spacer block 1 by bolts. An electric push rod 4 penetrates through the top of the cover plate 3, and the bottom end of the electric push rod 4 is connected to an inverted U-shaped plate 25 by bolts. A mounting plate 22 is slidably connected near the bottom inside the inverted U-shaped plate 25, and cutting knives 20 are respectively connected to the bottom of the mounting plate 22 near the left and right sides by bolts.

[0020] The bottom of the mounting plate 22 is bolted to a pressing box body 21, and a through groove 19 is formed in the bottom of the pressing box body 21. The top of the mounting plate 22 is bolted to a hot air blower 23, and the bottom air outlet of the mounting plate 22 is communicated with the inside of the pressing box body 21. A plurality of uniformly distributed air spraying holes 18 are formed in the bottom of the pressing box body 21. The top of the inner cavity of the inverted U-shaped plate 25 is bolted to an electric telescopic rod 24, and the bottom end of the electric telescopic rod 24 is bolted to the top of the hot air blower 23. Positioning blocks 15 are respectively arranged on the left and right sides of the placing block 17, and the bottom of the positioning block 15 is bolted to a movable plate 9. The bottom of the movable plate 9 is slidably connected to the top of a translation block 32. An installation groove 29 is formed in the side wall of the placing block 17 near the bottom, and a double-headed electric cylinder 30 is bolted in the installation groove 29. The push rods on both sides of the double-headed electric cylinder 30 are respectively bolted to the side walls of the two movable plates 9. Through this structure, it can effectively press and heat-seal while laminating the film, so that the film can be effectively attached to the display screen, improving its laminating efficiency and service efficiency.

[0021] Support plates 5 are respectively bolted to the bottom of the cushion block 1 near the left and right sides, and a cover body 7 is bolted to the bottom of the cushion block 1. The top of the cover body 7 is open. A nut 31 is slidably connected in the cover body 7, and the top of the nut 31 is bolted to the bottom of the translation block 32. A lead screw 33 is inserted into the nut 31, and the left and right ends of the lead screw 33 are respectively movably connected to the left and right inner side walls of the cover body 7 through bearings. A servo motor 6 is bolted to the right side of the cover body 7, and the right end of the lead screw 33 passes through the inner ring of the bearing and is connected to the output shaft of the lead screw 33. A support plate 10 is respectively bolted to the top of the cushion block 1 near the left side in the front-rear direction, and a support groove 12 is formed in the top of the support plate 10. L-shaped rods 13 are respectively bolted to the left side of the support plate 10 in the front-rear direction, and an arc-shaped clamping plate 11 is bolted to the bottom end of the L-shaped rod 13. An L-shaped clamping plate 28 is slidably connected to the right outer wall of the housing 8, and an L-shaped connecting plate 27 is bolted to the right side near the top of the L-shaped clamping plate 28. The left side of the L-shaped connecting plate 27 is bolted to the right outer wall of the inverted U-shaped plate 25. Cross plates 26 are respectively slidably connected to the top of the inverted U-shaped plate 25 near the left and right sides, and the side of the cross plate 26 away from the inverted U-shaped plate 25 is slidably connected to the inner wall of the protective cover 2. A knife groove 16 matching the cutting knife 20 is formed in the positioning block 15. Through this structure, it can synchronously position the film while pressing, so that it is not easy to shift in position during the film laminating process, and further enables it to accurately and effectively laminate the film, improving its accuracy and working efficiency.

[0022] A method for using a film laminating device and method for producing a liquid crystal display screen includes the following steps: S1: First, open the movable door on the protective cover 2. Then, place the rolled film in the two brackets 12 and place the liquid crystal display on the placing block 17; S2: Then, the double-headed electric cylinder 30 contracts and drives the two movable plates 9 to close together. The two movable plates 9 drive the two positioning blocks 15 to clamp the liquid crystal display; S3: Next, pull the rolled film so that the film fits on the top of the liquid crystal display. Then, the electric push rod 4 extends and drives the cutting knife 20 to move downward through the inverted U-shaped plate 25 and the mounting plate 22, and drives the L-shaped clamping plate 28 to press the film tightly through the L-shaped connecting plate 27; S4: At this time, the cutting knife 20 enters the knife groove 16 to cut off the film. The electric telescopic rod 24 extends downward and covers the liquid crystal display through the hot air blower 23 and the mounting plate 22 so that the through groove 19 covers it; S5: Then, the hot air blower 23 sprays hot air through the air spraying holes 18 so that effective pressing and heat sealing can be carried out while laminating the film.

[0023] Working principle: When this technical solution is used, first open the movable door on the protective cover 2. Then, place the rolled film in the two brackets 12 and place the liquid crystal display on the placing block 17. Then, the double-headed electric cylinder 30 contracts and drives the two movable plates 9 to close together. The two movable plates 9 drive the two positioning blocks 15 to clamp the liquid crystal display. Next, pull the rolled film so that the film fits on the top of the liquid crystal display. Then, the electric push rod 4 extends and drives the cutting knife 20 to move downward through the inverted U-shaped plate 25 and the mounting plate 22, and drives the L-shaped clamping plate 28 to press the film tightly through the L-shaped connecting plate 27, so that the film can be positioned synchronously while being pressed, so that it is not easy to shift in position during the film laminating process, and thus it can laminate the film accurately and effectively, improving its accuracy and working efficiency. At this time, the cutting knife 20 enters the knife groove 16 to cut off the film. The electric telescopic rod 24 extends downward and covers the liquid crystal display through the hot air blower 23 and the mounting plate 22 so that the through groove 19 covers it. The hot air blower 23 sprays hot air through the air spraying holes 18 so that the film can be positioned synchronously while being pressed, so that effective pressing and heat sealing can be carried out while laminating the film, so that the film can be effectively attached to the display screen, improving its film laminating efficiency and service efficiency.

[0024] Embodiment 2 Refer to Figures 1 to 7, in an embodiment of the present invention, a film laminating device for liquid crystal display production includes a cushion block 1, a protective cover 2 is sleeved outside the cushion block 1, the top of the protective cover 2 is connected to a cover plate 3 by bolts, and a movable door is installed on the front side of the protective cover 2. An activity groove 14 is opened at the top of the cushion block 1, and a translation block 32 is slidably connected in the activity groove 14. The top of the translation block 32 is connected to a housing 8 by bolts, and the top and bottom of the housing 8 are respectively open. A placing block 17 is arranged in the middle of the housing 8, and the bottom of the placing block 17 is connected to the top of the cushion block 1 by bolts. An electric push rod 4 is connected through the top of the cover plate 3, and the bottom end of the electric push rod 4 is connected to an inverted U-shaped plate 25 by bolts. A mounting plate 22 is slidably connected near the bottom inside the inverted U-shaped plate 25, and cutting knives 20 are respectively connected to the bottom of the mounting plate 22 near the left and right sides by bolts.

[0025] The bottom of the mounting plate 22 is connected to a pressing box body 21 by bolts, and a through groove 19 is opened at the bottom of the pressing box body 21. A hot air blower 23 is connected to the top of the mounting plate 22 by bolts, and the air outlet at the bottom of the mounting plate 22 is connected to the inside of the pressing box body 21. A plurality of uniformly distributed air spraying holes 18 are opened at the bottom of the pressing box body 21. An electric telescopic rod 24 is connected to the top of the inner cavity of the inverted U-shaped plate 25 by bolts, and the bottom end of the electric telescopic rod 24 is connected to the top of the hot air blower 23 by bolts. Positioning blocks 15 are respectively arranged on the left and right sides of the placing block 17, and a movable plate 9 is connected to the bottom of the positioning block 15 by bolts. The bottom of the movable plate 9 is slidably connected to the top of the translation block 32. An installation groove 29 is opened at the side wall of the placing block 17 near the bottom, and a double-headed electric cylinder 30 is connected in the installation groove 29 by bolts. The push rods on both sides of the double-headed electric cylinder 30 are respectively connected to the side walls of the two movable plates 9 by bolts. Through this structure, it can effectively perform pressing and heat sealing while laminating the film, so that the film can be effectively attached to the display screen, improving its film laminating efficiency and service efficiency.

[0026] Support plates 5 are respectively connected to the bottom of the spacer block 1 near the left and right sides by bolts, and a cover body 7 is connected to the bottom of the spacer block 1 by bolts. The top of the cover body 7 is open. A nut 31 is slidably connected inside the cover body 7, and the top of the nut 31 is connected to the bottom of the translation block 32 by bolts. A lead screw 33 is inserted into the nut 31, and the left and right ends of the lead screw 33 are respectively movably connected to the inner walls of the left and right sides of the cover body 7 by bearings. A servo motor 6 is connected to the right side of the cover body 7 by bolts, and the right end of the lead screw 33 passes through the inner ring of the bearing and is connected to the output shaft of the lead screw 33. Support plates 10 are respectively connected to the top of the spacer block 1 near the left side in the front-rear direction by bolts, and a support groove 12 is formed on the top of the support plate 10. L-shaped rods 13 are respectively connected to the left side of the support plate 10 in the front-rear direction by bolts, and an arc-shaped clamping plate 11 is connected to the bottom end of the L-shaped rod 13 by bolts. An L-shaped clamping plate 28 is slidably connected to the right outer wall of the housing 8, and an L-shaped connecting plate 27 is connected to the right side near the top of the L-shaped clamping plate 28 by bolts. The left side of the L-shaped connecting plate 27 is connected to the right outer wall of the inverted U-shaped plate 25 by bolts. Horizontal plates 26 are respectively slidably connected to the top of the inverted U-shaped plate 25 near the left and right sides, and the sides of the horizontal plates 26 away from the inverted U-shaped plate 25 are slidably connected to the inner wall of the protective cover 2. A knife groove 16 matching the cutting knife 20 is formed on the positioning block 15. With this structure, it can synchronously position the film while pressing, making it not prone to position deviation during the film covering process, thereby enabling accurate and effective film covering, and improving its accuracy and working efficiency.

[0027] A method for using a film covering device and method for producing a liquid crystal display screen includes the following steps: S1: First, open the movable door on the protective cover 2, then place the roll film in the two support grooves 12, and place the liquid crystal display screen on the placing block 17; S2: Then, the double-headed electric cylinder 30 contracts and drives the two movable plates 9 to close, and the two movable plates 9 drive the two positioning blocks 15 to clamp the liquid crystal display screen; S3: Next, pull the roll film so that the film fits on the top of the liquid crystal display screen, then the electric push rod 4 extends and drives the cutting knife 20 to move downward through the inverted U-shaped plate 25 and the mounting plate 22, and drives the L-shaped clamping plate 28 to press the film tightly through the L-shaped connecting plate 27; S4: At this time, the cutting knife 20 enters the knife groove 16 to cut off the film, and the electric telescopic rod 24 extends downward and covers the liquid crystal display screen through the through groove 19 by the hot air blower 23 and the mounting plate 22; S5: Then, the hot air blower 23 sprays hot air through the air spray holes 18, enabling effective pressing and heat sealing while covering the film.

[0028] Working principle: When this technical solution is in use, first open the movable door on the protective cover 2, then place the roll film in the two brackets 12, and place the liquid crystal display screen on the placement block 17. Then, the double-headed electric cylinder 30 contracts and drives the two movable plates 9 to close together. The two movable plates 9 drive the two positioning blocks 15 to clamp the liquid crystal display screen. Then, pull the roll film so that the film fits on the top of the liquid crystal display screen. Then, the electric push rod 4 extends and drives the cutting knife 20 to move downward through the inverted U-shaped plate 25 and the mounting plate 22, and drives the L-shaped clamping plate 28 to press the film tightly through the L-shaped connecting plate 27, so that it can position the film synchronously while pressing, so that it is not easy to shift in position during the film covering process, and thus it can accurately and effectively cover the film, improving its accuracy and working efficiency. At this time, the cutting knife 20 enters the knife groove 16 to cut off the film. The electric telescopic rod 24 extends downward and covers the liquid crystal display screen through the hot air blower 23 and the mounting plate 22 so that the through groove 19 covers the liquid crystal display screen. The hot air blower 23 sprays hot air through the air spraying holes 18, so that it can position the film synchronously while pressing, so that it can effectively press and heat-seal while covering the film, so that the film can effectively fit on the display screen, improving its film covering efficiency and service efficiency.

[0029] In this embodiment, the servo motor 6 drives the lead screw 33 to rotate, causing the nut 31 to move left and right. The nut 31 drives the translation block 32 to slide left and right in the movable groove 14, enabling it to effectively cooperate with heat sealing and improving its heat sealing efficiency. In this embodiment, a first slider is connected to the bottom of the movable plate 9 by bolts, and a first sliding groove matching the first slider is provided on the top of the translation block 32.

[0030] Embodiment Three Refer to Figures 1 to 7 As shown in [reference figure], an apparatus for laminating a liquid crystal display screen in an embodiment of the present invention includes a cushion block 1. A protective cover 2 is sleeved outside the cushion block 1. The top of the protective cover 2 is connected to a cover plate 3 by bolts. A movable door is installed on the front side of the protective cover 2. A movable groove 14 is provided at the top of the cushion block 1. A translation block 32 is slidably connected in the movable groove 14. The top of the translation block 32 is connected to a housing 8 by bolts. The top and bottom of the housing 8 are respectively open. A placement block 17 is provided in the middle of the housing 8. The bottom of the placement block 17 is connected to the top of the cushion block 1 by bolts. An electric push rod 4 is connected through the top of the cover plate 3. The bottom end of the electric push rod 4 is connected to an inverted U-shaped plate 25 by bolts. An installation plate 22 is slidably connected near the bottom inside the inverted U-shaped plate 25. Cutting knives 20 are respectively connected to the bottom of the installation plate 22 near the left and right sides by bolts.

[0031] The bottom of the mounting plate 22 is bolted to a pressing box body 21, and a through groove 19 is formed in the bottom of the pressing box body 21. The top of the mounting plate 22 is bolted to a hot air blower 23, and the air outlet at the bottom of the mounting plate 22 is in communication with the interior of the pressing box body 21. A plurality of uniformly distributed air injection holes 18 are formed in the bottom of the pressing box body 21. The top of the inner cavity of the inverted U-shaped plate 25 is bolted to an electric telescopic rod 24, and the bottom end of the electric telescopic rod 24 is bolted to the top of the hot air blower 23. Positioning blocks 15 are respectively arranged on the left and right sides of the placing block 17, and the bottom of the positioning block 15 is bolted to a movable plate 9. The bottom of the movable plate 9 is slidably connected to the top of the translation block 32. An installation groove 29 is formed in the side wall of the placing block 17 near the bottom, and a double-headed electric cylinder 30 is bolted in the installation groove 29. The push rods on both sides of the double-headed electric cylinder 30 are respectively bolted to the side walls of the two movable plates 9. Through this structure, it can effectively press and heat-seal while laminating the film, so that the film can be effectively attached to the display screen, improving its laminating efficiency and service efficiency.

[0032] Support plates 5 are respectively bolted to the bottom of the cushion block 1 near the left and right sides, and a cover body 7 is bolted to the bottom of the cushion block 1. The top of the cover body 7 is open. A nut 31 is slidably connected in the cover body 7, and the top of the nut 31 is bolted to the bottom of the translation block 32. A lead screw 33 is inserted into the nut 31, and the left and right ends of the lead screw 33 are respectively movably connected to the left and right inner side walls of the cover body 7 through bearings. A servo motor 6 is bolted to the right side of the cover body 7, and the right end of the lead screw 33 passes through the inner ring of the bearing and is connected to the output shaft of the lead screw 33. A support plate 10 is respectively bolted to the top of the cushion block 1 near the left side in the front-rear direction, and a support groove 12 is formed in the top of the support plate 10. L-shaped rods 13 are respectively bolted to the left side of the support plate 10 in the front-rear direction, and an arc-shaped clamping plate 11 is bolted to the bottom end of the L-shaped rod 13. An L-shaped clamping plate 28 is slidably connected to the right outer wall of the housing 8, and an L-shaped connecting plate 27 is bolted to the right side near the top of the L-shaped clamping plate 28. The left side of the L-shaped connecting plate 27 is bolted to the right outer wall of the inverted U-shaped plate 25. Cross plates 26 are respectively slidably connected to the top of the inverted U-shaped plate 25 near the left and right sides, and the side of the cross plate 26 away from the inverted U-shaped plate 25 is slidably connected to the inner wall of the protective cover 2. A knife groove 16 matching the cutting knife 20 is formed in the positioning block 15. Through this structure, it can synchronously position the film while pressing, making it not easy to shift in position during the film laminating process, and further enabling it to accurately and effectively laminate the film, improving its accuracy and working efficiency.

[0033] A method for using a film laminating device and method for producing a liquid crystal display screen includes the following steps: S1: First, open the movable door on the protective cover 2. Then, place the roll film in the two brackets 12 and place the liquid crystal display screen on the placing block 17. S2: Then, the double-headed electric cylinder 30 contracts and drives the two movable plates 9 to close together. The two movable plates 9 drive the two positioning blocks 15 to clamp the liquid crystal display screen. S3: Next, pull the roll film so that the film fits on the top of the liquid crystal display screen. Then, the electric push rod 4 extends and drives the cutting knife 20 to move downward through the inverted U-shaped plate 25 and the mounting plate 22, and drives the L-shaped clamping plate 28 to press the film tightly through the L-shaped connecting plate 27. S4: At this time, the cutting knife 20 enters the knife groove 16 to cut off the film. The electric telescopic rod 24 extends downward and covers the liquid crystal display screen through the hot air blower 23 and the mounting plate 22 so that the through groove 19 covers it. S5: Then, the hot air blower 23 sprays hot air through the air spraying holes 18 so that effective pressing and heat sealing can be carried out while laminating the film.

[0034] Working principle: When this technical solution is used, first open the movable door on the protective cover 2. Then, place the roll film in the two brackets 12 and place the liquid crystal display screen on the placing block 17. Then, the double-headed electric cylinder 30 contracts and drives the two movable plates 9 to close together. The two movable plates 9 drive the two positioning blocks 15 to clamp the liquid crystal display screen. Next, pull the roll film so that the film fits on the top of the liquid crystal display screen. Then, the electric push rod 4 extends and drives the cutting knife 20 to move downward through the inverted U-shaped plate 25 and the mounting plate 22, and drives the L-shaped clamping plate 28 to press the film tightly through the L-shaped connecting plate 27, so that the film can be positioned synchronously while being pressed, so that it is not easy to shift in position during the film laminating process, and thus it can laminate the film accurately and effectively, improving its accuracy and working efficiency. At this time, the cutting knife 20 enters the knife groove 16 to cut off the film. The electric telescopic rod 24 extends downward and covers the liquid crystal display screen through the hot air blower 23 and the mounting plate 22 so that the through groove 19 covers it. The hot air blower 23 sprays hot air through the air spraying holes 18 so that the film can be positioned synchronously while being pressed, so that effective pressing and heat sealing can be carried out while laminating the film, so that the film can be effectively attached to the display screen, improving its film laminating efficiency and service efficiency.

[0035] In this embodiment, dovetail blocks are respectively connected to the top of the inverted U-shaped plate 25 near the left and right sides by bolts, and dovetail grooves matching the dovetail blocks are formed at the bottom of the cross plate 26. In this embodiment, a lifting plate is connected to the left sides of the two L-shaped rods 13 by bolts, and a second slider is connected to the left side of the lifting plate by bolts. A second chute matching the second slider is formed on the left inner wall of the protective cover 2. In this embodiment, a third slider is connected to the side of the horizontal plate 26 away from the inverted U-shaped plate 25 by bolts, and a third sliding groove matching the third slider is formed in the inner wall of the protective cover 2.

[0036] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A film laminating device for liquid crystal display production, characterized in that, Including: A cushion block (1), a protective cover (2) is sleeved outside the cushion block (1), a cover plate (3) is connected to the top of the protective cover (2) by bolts, and a movable door is installed on the front side of the protective cover (2). An activity groove (14) is opened at the top of the cushion block (1), and a translation block (32) is slidably connected in the activity groove (14). A housing (8) is connected to the top of the translation block (32) by bolts, and the top and bottom of the housing (8) are respectively open. A placement block (17) is arranged in the middle of the housing (8), and the bottom of the placement block (17) is connected to the top of the cushion block (1) by bolts. An electric push rod (4) penetrates and is connected to the top of the cover plate (3), and the bottom end of the electric push rod (4) is connected to an inverted U-shaped plate (25) by bolts. An installation plate (22) is slidably connected near the bottom inside the inverted U-shaped plate (25), and cutting knives (20) are respectively connected to the bottom of the installation plate (22) near the left and right sides by bolts. A pressing box body (21) is connected to the bottom of the installation plate (22) by bolts, and a through groove (19) is opened at the bottom of the pressing box body (21). A hot air blower (23) is connected to the top of the installation plate (22) by bolts, and the air outlet at the bottom of the installation plate (22) is connected to the inside of the pressing box body (21). A plurality of uniformly distributed air spraying holes (18) are opened at the bottom of the pressing box body (21). Positioning blocks (15) are respectively arranged on the left and right sides of the placement block (17), and a movable plate (9) is connected to the bottom of the positioning block (15) by bolts. The bottom of the movable plate (9) is slidably connected to the top of the translation block (32). An installation groove (29) is opened at the side wall of the placement block (17) near the bottom, and a double-headed electric cylinder (30) is connected in the installation groove (29) by bolts. The push rods on both sides of the double-headed electric cylinder (30) are respectively connected to the side walls of the two movable plates (9) by bolts. Support plates (5) are respectively connected to the bottom of the cushion block (1) near the left and right sides by bolts, and a cover body (7) is connected to the bottom of the cushion block (1) by bolts, and the top of the cover body (7) is open. A nut (31) is slidably connected in the cover body (7), and the top of the nut (31) is connected to the bottom of the translation block (32) by bolts. A lead screw (33) is penetrated in the nut (31), and the left and right ends of the lead screw (33) are respectively movably connected to the left and right inner side walls of the cover body (7) by bearings. A servo motor (6) is connected to the right side of the cover body (7) by bolts, and the right end of the lead screw (33) passes through the inner ring of the bearing and is connected to the output shaft of the lead screw (33).

2. The laminating device for producing liquid crystal display screens according to claim 2, wherein An electric telescopic rod (24) is connected to the top inside the cavity of the inverted U-shaped plate (25) by bolts, and the bottom end of the electric telescopic rod (24) is connected to the top of the hot air blower (23) by bolts.

3. A film laminating device for producing a liquid crystal display screen according to claim 1, characterized in that, At the left side near the top of the cushion block (1), a supporting plate (10) is respectively connected by bolts in the front-back direction, and a supporting groove (12) is formed on the top of the supporting plate (10). On the left side of the supporting plate (10), L-shaped rods (13) are respectively connected by bolts in the front-back direction, and an arc-shaped clamping plate (11) is connected to the bottom end of the L-shaped rod (13) by bolts.

4. A film laminating device for manufacturing a liquid crystal display screen according to claim 1, wherein, A sliding connection is provided between the outer wall on the right side of the housing (8) and an L-shaped clamping plate (28). At the top near the right side of the L-shaped clamping plate (28), an L-shaped connecting plate (27) is connected by bolts. The left side of the L-shaped connecting plate (27) is connected by bolts to the outer wall on the right side of the inverted U-shaped plate (25).

5. A film laminating device for liquid crystal display production according to claim 1, characterized in that, At the left and right sides near the top of the inverted U-shaped plate (25), transverse plates (26) are respectively in sliding connection. The side of the transverse plate (26) away from the inverted U-shaped plate (25) is in sliding connection with the inner wall of the protective cover (2). A knife groove (16) matching the cutting knife (20) is formed on the positioning block (15).

6. The usage method of a film laminating device and method for producing a liquid crystal display screen according to any one of claims 1-5, characterized in that, It includes the following steps: S1: First, open the movable door on the protective cover (2). Then, place the rolled film in the two supporting grooves (12), and place the liquid crystal display on the placing block (17). S2: Then, the double-headed electric cylinder (30) contracts and drives the two movable plates (9) to close. The two movable plates (9) drive the two positioning blocks (15) to clamp the liquid crystal display. S3: Next, pull the rolled film so that the film fits on the top of the liquid crystal display. Then, the electric push rod (4) extends and drives the cutting knife (20) to move downward through the inverted U-shaped plate (25) and the mounting plate (22), and drives the L-shaped clamping plate (28) to press the film tightly through the L-shaped connecting plate (27). S4: At this time, the cutting knife (20) enters the knife groove (16) to cut off the film. The electric telescopic rod (24) extends downward and covers the liquid crystal display through the hot air blower (23) and the mounting plate (22) so that the through groove (19) covers the liquid crystal display. S5: Subsequently, the hot air blower (23) sprays hot air through the air spraying holes (18) so that effective pressing and heat sealing can be carried out while laminating the film.

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