Edge cutting device for liquid crystal display screen production
By introducing tool protection, clamping and safety protection devices into the LCD screen cutting device, the problems of debris flying and material cracking during the LCD screen cutting process are solved, and safety and production efficiency are improved.
Patent Information
- Application Number
- CN202510845313.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-09-05
AI Technical Summary
Existing LCD edge cutting devices can easily cause the LCD to crack and splash during the cutting process, posing a safety hazard and reducing production efficiency.
An edge cutting device for LCD production was designed. It was equipped with a tool guard, a clamping device, and a safety guard. The cutting was performed by a hydraulic press driving a hydraulic rod and a diamond knife. Components such as a protective cover, an extrusion plate, and a limit clamp were used to prevent debris from splashing and material displacement.
It effectively prevents debris from flying and scratching workers, reduces the risk of tool damage, improves production efficiency and safety, and ensures the stability of materials during the cutting process.
Smart Images
Figure CN120588367A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of edge cutting devices for producing liquid crystal display screens, and in particular to an edge cutting device for producing liquid crystal display screens. Background Art
[0002] Liquid crystal screens use liquid crystal materials as their basic components. Liquid crystal materials are filled between two parallel plates. Voltage is used to change the arrangement of molecules inside the liquid crystal material to achieve the purpose of shading and transmitting light to display images of varying depths and staggered patterns. During the LCD screen production process, a whole large screen substrate is usually cut into several LCD screens of preset sizes, and then the edges of the LCD screens are trimmed off. Since LCD screens are brittle materials, the safety requirements for the LCD screen cutting device are high during the cutting process.
[0003] Most of the current LCD edge cutting devices, when cutting LCD screens, are made of brittle materials and inevitably cause the LCD screen to crack and splash. The existing devices do not have a protective function, so when the LCD screen splashes, it is easy to cause injuries to the workers and reduce the efficiency of the LCD screen cutting process. Summary of the Invention
[0004] In view of the deficiencies in the prior art, the present invention provides an edge cutting device for producing liquid crystal display screens, which solves the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an edge cutting device for producing liquid crystal display screens, comprising a workbench, a support frame is fixedly connected to the top of the workbench, a hanging frame is slidably provided on the support frame, a hydraulic press is fixedly installed in the hanging frame, a hydraulic rod is fixed to the output end of the hydraulic press, the hydraulic rod passes through and slides on the hanging frame, a hydraulic plate is fixedly installed at the end point of the hydraulic rod, a down-pressing rod is fixed at both ends of the hydraulic plate, a square frame is fixed at the end point of the down-pressing rod, the square frame passes through and slides on the workbench, a sliding frame is slidably provided below the hydraulic plate, a cylinder is fixedly installed inside the sliding frame, a diamond knife is fixed at the output end of the cylinder, a tool guard is provided above the workbench, a clamping device is provided on the workbench, and safety protection devices are provided on both sides of the workbench, after the hydraulic press is started, the hydraulic rod at the output end drives the hydraulic plate to move downward, the downward displacement of the hydraulic plate drives the down-pressing rods at both ends to move downward, the downward movement of the down-pressing rod drives the square frame downward, the cylinder on the sliding frame is started, the diamond knife at the end point moves downward, and cuts the material; Among them, the tool protection device includes a pressure spring, a connecting plate, a protective cover, an extrusion plate, an extrusion spring, a connecting rod, an L rod, a support seat, a gear and a protective sleeve. The pressure spring slides in the slot of the lower pressure rod. A connecting plate is fixed under the pressure spring, and the connecting plate slides on the slot of the lower pressure rod.
[0006] According to the above technical solution, a protective cover is fixedly installed on the right side of the connecting plate, an extrusion plate is slid on the protective cover, an extrusion spring is fixed on the extrusion plate, and the end point of the extrusion spring is fixed on the protective cover.
[0007] According to the above technical solution, a connecting rod is fixed on the extrusion plate, the connecting rod passes through and slides on the protective cover, and an L rod is fixed to the end point of the connecting rod.
[0008] According to the above technical solution, a support seat is fixed above the protective cover, and a gear rotates on the support seat. The two groups of L rods are driven by gears, and the protective sleeve slides on the diamond knife. When the hydraulic press is started, the output end hydraulic rod moves downward, and the downward movement of the output end hydraulic rod brings the hydraulic plate downward displacement, and the downward displacement of the hydraulic plate brings the two end pressure rods downward, and the downward movement of the pressure rod brings the square frame downward. As the pressure rod moves downward, the connecting plate moves downward at the same time, and the pressure spring in the pressure rod is deformed. As it moves downward, it slowly presses the material to prevent the material from moving. When the connecting plate moves downward, the right side protective cover also moves downward. As the connecting plate moves downward and presses the material, the protective cover covers the cutting area to prevent debris from splashing and scratching the workers during processing. At the end of the work, the hydraulic press returns with the hydraulic rod, hydraulic plate and lower pressure rod, and the connecting plate and protective cover also slowly return under the pressure of the pressure spring. When the cylinder on the sliding frame is started, the diamond knife at the end point moves downward with the protective cover. When the protective cover on the diamond knife moves downward and contacts the extrusion plate, it is supported by the extrusion plate and moves up to expose the knife head to cut the LCD screen. When large pieces of glass fragments are generated at the cutting point of the diamond knife head and hit the extrusion plate, the extrusion plate is pressured to slide on the protective cover. The sliding of the extrusion plate produces displacement, and the force causes the connecting rod to move. The displacement of the connecting rod causes the L rod to move. The displacement of the L rod acts on another set of L rods driven by the gear on the support seat. The two sets of L rods slide away from each other. The two sets of L rods slide away from each other so that the protective cover no longer contacts the extrusion plate support and moves downward.
[0009] According to the above technical solution, the clamping device includes a push rod, a movable plate, a pull rod, a limit rod and a limit clamping plate. The push rod is fixed under the square frame, and the push rod slides in the notch on the movable plate. The pull rod is fixed on the movable plate.
[0010] According to the above technical solution, the pull rod passes through and slides on the workbench, a limit plate is fixed on the pull rod, and a limit rod is fixed on the limit plate. When the square frame moves downward, the push rod moves downward, and the push rod moves downward on the sliding plate, so that the sliding plate is subjected to force to pull the pull rod, the limit rod and the limit plate to move, so that the two sets of limit plates are close to each other, clamping the material to prevent the material from displacing during cutting and causing collapse and splashing of debris.
[0011] According to the above technical solution, the safety protection device includes an extrusion rod, a pry rod, a support column, the hinge column and a baffle. The extrusion rod is fixed below the square frame, and the end point of the extrusion rod is attached to the pry rod.
[0012] According to the above technical solution, the support column is fixedly mounted on the workbench, a pry bar is rotatable on the support column, an articulated column is hinged on the pry bar, a baffle is slid on the articulated column, and when the square frame moves downward, the extrusion rod moves downward with it, and the extrusion rod moves downward to press the pry bar, causing the pry bar to rotate on the support column, causing the articulated column to move upward, and the articulated column moves upward with the baffle moving upward, shielding the working area to prevent large pieces of debris from splashing and causing work injuries.
[0013] The present invention provides an edge cutting device for liquid crystal display production. It has the following beneficial effects: (1) The present invention is provided with a tool protection device. When the hydraulic press is started, the hydraulic rod moves downward with the hydraulic plate and the support rod. As the support rod moves downward, the connecting plate moves downward at the same time to press down the material. The right protective cover covers the cutting area to prevent debris from splashing and scratching the workers during the processing. When the protective cover covers the cutting area, when large pieces of glass fragments are generated at the cutting position of the cutter head and the large pieces of fragments hit the extrusion plate, the extrusion plate is forced to slide the two sets of connecting rods and the two sets of L rods away from each other. The protective cover no longer contacts the extrusion plate, so that the protective cover moves downward without support, covering the cutter head, and preventing large particles of glass fragments from rebounding onto the cutter head, causing scratches on the cutter head and affecting subsequent use.
[0014] (2) The present invention is provided with a clamping device. When the square frame moves downward, it moves downward with the push rod. The push rod moves downward and acts on the sliding plate, so that the sliding plate is pulled by the pull rod, the limit rod and the limit clamp plate to move. The two sets of limit clamp plates are brought close to each other to clamp the material, preventing the material from being displaced during cutting and causing collapse and debris splashing, making the operator safer during processing.
[0015] (3) The present invention is provided with a safety protection device. When the square frame moves downward, the extrusion rod moves downward with it. The extrusion rod moves downward and presses the pry bar, causing the pry bar to rotate on the support column, causing the hinge column to move upward. The hinge column moves upward and the baffle moves upward to shield the working area, prevent large pieces of debris from splashing and causing work injuries, and increase safety during the processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the full cross-sectional structure of the present invention; Figure 3 It is a partial structural diagram of the present invention; Figure 4 It is a schematic diagram of the local structure of the present invention; Figure 5 Schematic diagram of the baffle structure of the present invention; Figure 6 This is a schematic structural diagram of the tool protection device of the present invention.
[0017] In the figure: 1. workbench; 2. support frame; 3. hanging frame; 4. hydraulic press; 5. hydraulic rod; 6. hydraulic plate; 7. down-press rod; 8. sliding frame; 9. cylinder; 10. diamond knife; 11. tool protection device; 12. square frame; 13. clamping device; 14. safety protection device; 1101. pressure spring; 1102. connecting plate; 1103. protective cover; 1104. extrusion plate; 1105. extrusion spring; 1106. connecting rod; 1107. L rod; 1108. support seat; 1109. gear; 1110. protective cover; 1301. push rod; 1302. movable plate; 1303. pull rod; 1304. limit rod; 1305. limit splint; 1401. extrusion rod; 1402. pry bar; 1403. support column; 1404. hinge column; 1405. baffle. DETAILED DESCRIPTION
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0019] See also Figures 1-6One embodiment of the present invention is: an edge cutting device for liquid crystal display production, comprising a workbench 1, a support frame 2 is fixedly connected above the workbench 1, a hanging frame 3 slides on the support frame 2, a hydraulic press 4 is fixedly installed in the hanging frame 3, a hydraulic rod 5 is fixed to the output end of the hydraulic press 4, the hydraulic rod 5 passes through and slides on the hanging frame 3, a hydraulic plate 6 is fixedly installed at the end point of the hydraulic rod 5, a down-pressing rod 7 is fixed at both ends of the hydraulic plate 6, a square frame 12 is fixed at the end point of the down-pressing rod 7, the square frame 12 passes through and slides on the workbench 1, a sliding frame 8 slides below the hydraulic plate 6, a cylinder 9 is fixedly installed inside the sliding frame 8, a diamond knife 10 is fixed to the output end of the cylinder 9, and a tool guard 11 is provided above the workbench 1.
[0020] Among them, the tool protection device 11 includes a pressure spring 1101, a connecting plate 1102, a protective cover 1103, an extrusion plate 1104, an extrusion spring 1105, a connecting rod 1106, an L rod 1107, a support seat 1108, a gear 1109 and a protective sleeve 1110, the pressure spring 1101 slides in the slot of the lower pressure rod 7, a connecting plate 1102 is fixed below the pressure spring 1101, the connecting plate 1102 slides on the slot of the lower pressure rod 7, a protective cover 1103 is fixed to the right side of the connecting plate 1102, an extrusion plate 1104 slides on the protective cover 1103, an extrusion spring 1105 is fixed on the extrusion plate 1104, the end point of the extrusion spring 1105 is fixed on the protective cover 1103, a connecting rod 1106 is fixed on the extrusion plate 1104, and the connecting rod 1106 is fixed on the extrusion plate 1104. Rod 1106 passes through and slides on the protective cover 1103. An L rod 1107 is fixed to the end point of the connecting rod 1106. A support seat 1108 is fixed above the protective cover 1103. A gear 1109 rotates on the support seat 1108. The two sets of L rods 1107 are driven by the gear 1109. After the hydraulic press 4 is started, it can drive the lower pressure rod 7 to move downward. As the lower pressure rod 7 moves downward, the connecting plate 1102 moves downward at the same time, and the pressure spring 1101 in the lower pressure rod 7 is deformed. As it moves downward, it slowly presses the material to prevent it from moving. When the connecting plate 1102 moves downward, the right side protective cover 1103 also moves downward. As the connecting plate 1102 moves downward and presses the material, the protective cover 1103 covers the cutting area to prevent debris from splashing and scratching the staff during processing. When large pieces of glass fragments are generated at the cutting point of the diamond knife 10 and fly and hit the extrusion plate 1104, the extrusion plate 1104 is under pressure and slides on the protective cover 1103. The sliding of the extrusion plate 1104 causes the force to cause the connecting rod 1106 to move, and the displacement of the connecting rod 1106 causes the L rod 1107 to move. The displacement of the L rod 1107 acts on the gear 1109 on the support seat 1108 to transmit another set of L rods 1107. The two sets of L rods 1107 slide away from each other. The two sets of L rods 1107 slide away from each other so that the protective cover 1110 no longer contacts the extrusion plate 1104 support and moves downward, thereby covering the cutter head, preventing damage to the cutter head, reducing the economic losses caused by tool damage, and reducing the risk of injury to operators during the processing process.
[0021] When this embodiment is working: after the hydraulic press 4 is started, the output end hydraulic rod 5 is pressed and moves downward, and the output end hydraulic rod 5 moves downward so that the hydraulic plate 6 is pressed and moves downward, and the hydraulic plate 6 moves downward with the downward pressure rods 7 at both ends, and the downward pressure rods 7 press the square frame 12 downward, so that the square frame 12 moves downward, and when the downward pressure rods 7 continue to move downward, the connecting plate 1102 moves downward at the same time, and as the pressure spring 1101 in the downward pressure rod 7 is continuously pressed, the connecting plate 1102 slowly presses the material to prevent the material from being crushed. As the material moves and the connecting plate 1102 moves downward, the right side protective cover 1103 also moves downward. As the connecting plate 1102 is continuously moved downward to press the material, the protective cover 1103 covers the cutting area to prevent debris from splashing and scratching the workers during the processing. At the end of the work, the hydraulic press 4 returns to its original position with the hydraulic rod 5, hydraulic plate 6 and lower pressure rod 7. The connecting plate 1102 and protective cover 1103 also slowly return to their original position under the pressure of the pressure spring 1101. When the cylinder 9 on the sliding frame 8 is started, the diamond knife 10 at the end point with the protective cover 111 0 moves downward, and the protective cover 1110 on the diamond knife 10 moves downward. When it contacts the extrusion plate 1104, it is supported by the extrusion plate 1104 and moves upward to expose the blade head, so that the blade head cuts the LCD screen. When the diamond knife 10 blade head cuts, large pieces of glass fragments are generated and splash and hit the extrusion plate 1104. The extrusion plate 1104 is pressed and slides on the protective cover 1103. The extrusion plate 1104 slides under the force and moves, causing the connecting rod 1106 to move. The connecting rod 1106 moves and causes the L rod 1107 to move. The L rod 1107 moves. The 07 displacement acts on the gear 1109 on the support seat 1108 to transmit another set of L rods 1107, so that the two sets of L rods 1107 slide away from each other. The two sets of L rods 1107 slide away from each other so that the protective cover 1110 no longer contacts the extrusion plate 1104, so that the protective cover 1110 moves downward without support, thereby covering the cutter head and preventing damage to the cutter head. This not only reduces the economic losses caused by tool damage, but also reduces the risk of injury to operators during the processing by the protective cover 1103, thereby improving production efficiency and reducing safety risks.
[0022] See also Figures 1-6 On the basis of the above embodiment, in another embodiment of the present invention, a clamping device 13 is provided on the workbench 1, and safety protection devices 14 are provided on both sides of the workbench 1. The clamping device 13 includes a push rod 1301, a movable plate 1302, a pull rod 1303, a limit rod 1304 and a limit clamping plate 1305. The push rod 1301 is fixed to the bottom of the square frame 12, and the push rod 1301 slides in the groove on the movable plate 1302. The pull rod 1303 is fixed on the movable plate 1302. The pull rod 1303 passes through and slides on the workbench 1, and the limit clamping plate 1305 is fixed on the pull rod 1303. A limiting rod 1304 is fixed on 305. When the square frame 12 moves downward, the square frame 12 moves downward with the two sets of push rods 1301. The two sets of push rods 1301 move downward and act on the two sets of movable plates 1302, so that the two sets of movable plates 1302 are forced to move closer to each other. The two sets of movable plates 1302 move closer to each other and pull the two sets of pull rods 1303 closer to each other. The two sets of pull rods 1303 move closer to each other and pull the two sets of limiting rods 1304 and the two sets of limiting splints 1305 closer to each other, so that the two sets of limiting splints 1305 clamp the material to prevent the material from being displaced and collapsed during cutting, and debris from splashing, thereby reducing operation risks.
[0023] The safety protection device 14 includes an extrusion rod 1401, a pry bar 1402, a support column 1403, a hinge column 1404 and a baffle 1405. The extrusion rod 1401 is fixed to the bottom of the square frame 12, the end point of the extrusion rod 1401 is attached to the pry bar 1402, the support column 1403 is fixedly installed on the workbench 1, the pry bar 1402 is rotatable on the support column 1403, the pry bar 1402 is hinged with a hinge column 1404, and the hinge column 1404 is slidably provided with a baffle. Plate 1405, when the square frame 12 moves downward, the square frame 12 moves downward with the extrusion rod 1401, and the extrusion rod 1401 moves downward to press the pry bar 1402, so that the pry bar 1402 rotates on the support column 1403, and the rotation of the pry bar 1402 causes the hinged column 1404 to lift upward, and the hinged column 1404 lifts upward and brings the baffle 1405 upward, and the two sets of baffles 1405 are lifted to shield the processing area to prevent large debris from flying and causing personal injury.
[0024] When this embodiment is working: when the square frame 12 moves downward, the square frame 12 moves downward with the two sets of push rods 1301, and the two sets of push rods 1301 move downward and press on the two sets of movable plates 1302, so that the two sets of movable plates 1302 are forced to move closer to each other, and the two sets of movable plates 1302 move closer to each other, pulling the two sets of pull rods 1303 closer to each other, and the two sets of pull rods 1303 move closer to each other, bringing the two sets of limit rods 1304 and the two sets of limit splints 1305 closer to each other, so that the two sets of limit splints 1305 clamp the material to prevent the material from being displaced and collapsing during cutting, and the debris from splashing, thereby reducing the operation risk. When the square frame 12 moves downward, the square frame 12 At the same time, the extrusion rod 1401 moves downward, and the extrusion rod 1401 moves downward to press the pry bar 1402, so that the pry bar 1402 rotates on the support column 1403. The rotation of the pry bar 1402 causes the hinged column 1404 to lift upward, and the upward lifting of the hinged column 1404 brings the baffle 1405 upward. The two sets of baffles 1405 are lifted to block the processing area to prevent large pieces of debris from flying and causing personal injury. The baffle 1405 cooperates with the limiting splint 1305 to make the material positioning more accurate, avoid the displacement of the material during the processing process, resulting in collapse and the splashing of processing and cutting debris to cause safety risks, reduce material loss in the production process, and improve processing efficiency.
[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. An edge cutting device for producing liquid crystal display screens, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a support frame (2) above, a hanging frame (3) is slidably mounted on the support frame (2), a hydraulic press (4) is fixedly mounted in the hanging frame (3), a hydraulic rod (5) is fixedly mounted on the output end of the hydraulic press (4), the hydraulic rod (5) passes through and slides on the hanging frame (3), a hydraulic plate (6) is fixedly mounted at the end point of the hydraulic rod (5), a down-pressing rod (7) is fixedly mounted at both ends of the hydraulic plate (6), a square frame (12) is fixedly mounted at the end point of the down-pressing rod (7), the square frame (12) passes through and slides on the workbench (1), a sliding frame (8) is slidably mounted below the hydraulic plate (6), a cylinder (9) is fixedly mounted inside the sliding frame (8), a diamond knife (10) is fixedly mounted at the output end of the cylinder (9), a tool guard (11) is provided above the workbench (1), a clamping device (13) is provided on the workbench (1), and safety guards (14) are provided on both sides of the workbench (1); The tool protection device (11) comprises a pressure spring (1101), a connecting plate (1102), a protective cover (1103), an extrusion plate (1104), an extrusion spring (1105), a connecting rod (1106), an L rod (1107), a support seat (1108), a gear (1109) and a protective sleeve (1110), wherein the pressure spring (1101) slides in a notch of the lower pressure rod (7), a connecting plate (1102) is fixed below the pressure spring (1101), and the connecting plate (1102) slides on the notch of the lower pressure rod (7).
2. The edge cutting device for liquid crystal display production according to claim 1, characterized in that: A protective cover (1103) is fixedly mounted on the right side of the connecting plate (1102), an extrusion plate (1104) slides on the protective cover (1103), an extrusion spring (1105) is fixed on the extrusion plate (1104), and an end point of the extrusion spring (1105) is fixed on the protective cover (1103).
3. The edge cutting device for liquid crystal display production according to claim 2, characterized in that: A connecting rod (1106) is fixed on the extrusion plate (1104), and the connecting rod (1106) passes through and slides on the protective cover (1103). An L rod (1107) is fixed at the end point of the connecting rod (1106).
4. The edge cutting device for liquid crystal display production according to claim 3, characterized in that: A support base (1108) is fixed above the protective cover (1103), a gear (1109) rotates on the support base (1108), and the protective sleeve (1110) slides on the diamond knife (10).
5. The edge cutting device for liquid crystal display production according to claim 1, characterized in that: The clamping device (13) includes a push rod (1301), a movable plate (1302), a pull rod (1303), a limiting rod (1304) and a limiting clamping plate (1305), wherein the push rod (1301) is fixed below the square frame (12), and the push rod (1301) slides in a notch on the movable plate (1302), and the pull rod (1303) is fixed on the movable plate (1302).
6. The edge cutting device for liquid crystal display production according to claim 5, characterized in that: The pull rod (1303) passes through and slides on the workbench (1); a limiting clamp (1305) is fixed on the pull rod (1303); and a limiting rod (1304) is fixed on the limiting clamp (1305).
7. The edge cutting device for liquid crystal display production according to claim 1, characterized in that: The safety protection device (14) comprises an extrusion rod (1401), a pry rod (1402), a support column (1403), a hinge column (1404) and a baffle (1405); the extrusion rod (1401) is fixed below the square frame (12); and the end point of the extrusion rod (1401) is attached to the pry rod (1402).
8. The edge cutting device for liquid crystal display production according to claim 7, characterized in that: The support column (1403) is fixedly mounted on the workbench (1); a pry bar (1402) is rotatably mounted on the support column (1403); a hinged column (1404) is hingedly mounted on the pry bar (1402); and a baffle (1405) is slidably mounted on the hinged column (1404).