A high-precision LCD cutting machine for display screen production

By using a vacuum adsorption system with a negative pressure cylinder and an air pump to fix the display screen, combined with an automatic cleaning assembly consisting of a movable box and a diagonal bar, the problems of fixing and cleaning the display screen cutting machine are solved, achieving high-precision cutting and efficient cleaning.

CN224425724UActive Publication Date: 2026-06-30JIANGXI LANGKE ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI LANGKE ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing LCD cutting machines are prone to scratching or breaking the display screen when fixing it, and the debris generated during cutting is time-consuming and labor-intensive to clean up, posing safety hazards.

Method used

The display screen is fixed by vacuum adsorption using a negative pressure cylinder and air pump in the fixed component, and debris is collected by a push plate driven by a movable box and inclined rod in the cleaning component. Automatic cleaning is achieved by using a motor to drive the moving cylinder and inclined rod.

Benefits of technology

It achieves stable fixation of displays of different sizes, avoiding scratches or breakage, and improves the cleanliness of the equipment's interior, reducing the time and safety risks associated with manual cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a high-precision LCD cutting machine for display screen production, relating to the field of display screen manufacturing technology. It includes: a cutting box; a motor a mounted on one side of the cutting box; a threaded rod a driven by the motor a; a movable block inside the cutting box; a threaded hole corresponding to the threaded rod a inside the movable block; one end of the threaded rod a passing through the movable block and rotatably connected to the inner wall of the cutting box via a bearing; a limit groove on one side of the cutting box; a limit rod connected to one side of the movable block; one end of the limit rod passing through the limit groove; a fixing component inside the cutting box for fixing displays of different sizes; and a cleaning component inside the cutting box for cleaning debris generated during cutting. This device, through the fixing component, can close the corresponding negative pressure cylinder using a screw, adapting to displays of different sizes; and through the cleaning component, can clean the debris generated during cutting into a corresponding collection box, improving the cleanliness of the equipment's interior.
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Description

Technical Field

[0001] This utility model relates to the field of display screen manufacturing technology, specifically a high-precision LCD cutting machine for display screen production. Background Technology

[0002] LCD cutting machines are key equipment in the manufacturing of liquid crystal panels. They are mainly used to precisely divide large-area glass substrates into individual display units. The technology originates from the demand for high-precision and high-efficiency cutting in liquid crystal display technology. In the early days, hard straight blades were mostly used for cutting, but they were prone to micro-cracks and edge chipping.

[0003] Traditional LCD cutting machines use bolts or pressure plates to fix the display screen, which can easily cause scratches or cracks on the screen surface. On the other hand, a lot of debris is easily generated during the cutting process, and manual cleaning is not only time-consuming and laborious, but also easily causes workers' hands to be cut. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-precision LCD cutting machine for display screen production. The machine can use a screw to close the corresponding negative pressure cylinder through a fixing component to adapt to different sizes of display screens. The cleaning component can clean the cutting debris into the corresponding collection box to improve the cleanliness of the equipment.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A high-precision LCD cutting machine for display screen production includes: a cutting box, a motor a mounted on one side of the cutting box, a threaded rod a driven by the motor a on one side, a movable block inside the cutting box, a threaded hole corresponding to the threaded rod a inside the movable block, one end of the threaded rod a passing through the movable block and rotatably connected to the inner wall of the cutting box via a bearing, a limit groove on one side of the cutting box, a limit rod connected to one side of the movable block, one end of the limit rod passing through the limit groove, a fixing assembly inside the cutting box for fixing displays of different specifications, the fixing assembly including: a fixing box, a negative pressure cylinder and an air pump, and a cleaning assembly inside the cutting box for cleaning debris generated during cutting, the cleaning assembly including: a movable box, a movable groove and a diagonal rod.

[0007] Preferably, the bottom of the movable block is connected to an electric push rod, the bottom of the electric push rod is connected to a mounting bracket, a cutting machine is installed inside the mounting bracket, a fixed box is installed inside the cutting box, an air suction groove is opened inside the fixed box, multiple negative pressure cylinders communicating with the air suction groove are installed on the top of the fixed box, an air pump is installed inside the cutting box, an air extraction pipe is connected to the top of the air pump, one end of the air extraction pipe extends into the air suction groove, an air release pipe is provided at the bottom of the cutting box, one end of the air release pipe passes through the fixed box and extends into the air suction groove, a manual air valve is installed inside the air release pipe to control the communication between the air suction groove (301) and the outside, negative pressure grooves are opened inside the multiple negative pressure cylinders, a sealing gasket is installed on the top of each of the multiple negative pressure cylinders, a screw is provided on the top of each of the multiple negative pressure cylinders, a thread for matching the screw is provided inside the negative pressure groove, and a rubber ring is installed on the top of the screw.

[0008] Preferably, a movable box is installed on one side of the cutting box, and a motor b is installed on one side of the movable box. The movable box has a movable groove inside. A bidirectional screw is driven and connected to one side of the motor b. Two movable cylinders are threaded to the outer side of the bidirectional screw. Each of the two movable cylinders has a diagonal rod connected to one side. The cutting box has two inclined slots inside that match the inclination angle of the diagonal rods. Two push plates are provided inside the cutting box. One end of each of the two diagonal rods passes through the corresponding inclined slot and is connected to the top of the corresponding push plate. Collection boxes are installed on both sides of the cutting box. One side of the collection box has a through groove that communicates with the inside of the cutting box. The positions of the two through grooves correspond to the movement trajectory of the push plates and are used for the passage of debris. A sealing plate is rotatably connected to one side of the collection box via a hinge.

[0009] The beneficial effects of this utility model are:

[0010] The advantage of this invention is that by using the fixing box, negative pressure cylinder and air pump in the fixing assembly, the inside of the air suction groove is in a vacuum state, the negative pressure suction of the negative pressure cylinder fixes the display screen, and the corresponding negative pressure cylinder can be closed by the screw, which can adapt to display screens of different sizes.

[0011] Secondly, by setting up the movable box, movable slot and diagonal bar in the cleaning component, the two moving cylinders can be moved by the motor b, so that the two push plates can clean the cutting debris into the corresponding collection box, thereby improving the cleanliness of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a front sectional view of the overall structure of this utility model.

[0014] Figure 3 This is a half-sectional view of the overall structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the bidirectional screw structure of this utility model.

[0016] Figure 5 This is a partial cross-sectional view of the inclined groove structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the negative pressure cylinder structure of this utility model.

[0018] Figures 1-6 In the middle: 1. Cutting box; 101. Motor a; 102. Threaded rod a; 103. Moving block; 104. Limiting groove; 105. Limiting rod; 2. Electric push rod; 201. Mounting rack ; 202, Cutting machine; 3, Fixed box; 301, Suction groove; 302, Negative pressure cylinder; 303, Air pump; 304, Suction pipe; 305, Vent pipe; 4, Negative pressure groove; 401, Sealing gasket; 402, Rubber ring; 403, Screw; 5, Movable box; 501, Motor b; 502, Movable groove; 503, Bidirectional screw; 6, Moving cylinder; 601, Inclined groove; 7, Inclined rod; 701, Push plate; 702, Through groove; 703, Collection box; 704, Sealing plate. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-6As shown, a high-precision LCD cutting machine for display screen production includes a cutting box 1. A motor a101 is installed on one side of the cutting box 1, and a threaded rod a102 is driven and connected to the other side of the motor a101. A moving block 103 is provided inside the cutting box 1. The moving block 103 has a threaded hole corresponding to the threaded rod a102. One end of the threaded rod a102 passes through the moving block 103 and is rotatably connected to the inner wall of the cutting box 1 through a bearing. A limit groove 104 is provided on one side of the cutting box 1, and a limit rod 105 is connected to one side of the moving block 103. One end of the limit rod 105 passes through the limit groove 104. A fixing component is provided inside the cutting box 1 for fixing displays of different specifications. The fixing component includes: a fixing box 3, a negative pressure cylinder 302, and an air pump 303. A cleaning component is provided inside the cutting box 1 for cleaning the debris generated during cutting. The cleaning component includes: a movable box 5, a movable groove 502, and a diagonal rod 7.

[0022] The fixed assembly utilizes the fixed box 3, negative pressure cylinder 302, and air pump 303 to create a vacuum inside the suction groove 301. The negative pressure suction of the negative pressure cylinder 302 fixes the display screen, and the corresponding negative pressure cylinder 302 can be closed by a screw to accommodate display screens of different sizes. Furthermore, the cleaning assembly uses the movable box 5, movable groove 502, and inclined rod 7 to drive two movable cylinders 6 to move using motor b501. This allows the two push plates 701 to clean the cutting debris into the corresponding collection box 703, improving the cleanliness of the equipment's interior.

[0023] The moving block 103 is connected to an electric push rod 2 at its bottom, and a mounting bracket 201 is connected to the bottom of the electric push rod 2. A cutting machine 202 is installed inside the mounting bracket 201. A fixed box 3 is installed inside the cutting box 1. An air suction groove 301 is opened inside the fixed box 3. Multiple negative pressure cylinders 302 communicating with the air suction groove 301 are installed on the top of the fixed box 3. An air pump 303 is installed inside the cutting box 1. An air extraction pipe 304 is connected to the top of the air pump 303. One end of the air extraction pipe 304 extends into the air suction groove 301. The bottom of the cutting box 1... A vent pipe 305 is provided, one end of which passes through the fixed box 3 and extends into the air intake groove 301. A manual air valve is installed inside the vent pipe 305 to control the connection between the air intake groove (301) and the outside. Multiple negative pressure cylinders 302 have negative pressure grooves 4 inside. Each of the multiple negative pressure cylinders 302 has a sealing gasket 401 installed on its top. Each of the multiple negative pressure cylinders 302 has a screw 403 installed on its top. The negative pressure groove 4 has a thread that matches the screw 403. A rubber ring 402 is installed on the top of the screw 403.

[0024] Lay the display screen to be cut flat on top of the fixing box 3 and cover it with the negative pressure cylinder 302. Start the air pump 303 to draw air from the suction groove 301 through the air extraction pipe 304 to form a negative pressure. The negative pressure is transmitted to the bottom surface of the display screen through the negative pressure cylinder 302. Adsorption and fixation are achieved by relying on atmospheric pressure difference. Adjust the negative pressure cylinder 302 that needs to be closed according to the size of the display screen. Rotate the screw 403 of the corresponding position of the negative pressure cylinder 302. The screw 403 rotates down to push the rubber ring 402 to press the sealing gasket 401 and close the negative pressure groove 4 channel of the negative pressure cylinder 302 to avoid air leakage in ineffective areas, which would cause a decrease in adsorption force. After cutting, open the air valve of the vent pipe 305 to release the negative pressure and remove the display screen.

[0025] The cutting box 1 has a movable box 5 installed on one side, and a motor b501 installed on the other side. The movable box 5 has a movable groove 502 inside. The motor b501 is driven by a bidirectional screw 503 on one side. Two movable cylinders 6 are threaded to the outside of the bidirectional screw 503. Each of the two movable cylinders 6 has a diagonal rod 7 connected to one side. The cutting box 1 has two inclined grooves 601 inside, which are adapted to the inclination angle of the diagonal rods 7. The cutting box 1 has two push plates 701 inside. One end of each of the two diagonal rods 7 passes through the corresponding inclined groove 601 and is connected to the top of the corresponding push plate 701. The cutting box 1 has a collection box 703 on both sides. The collection box 703 has a through groove 702 on one side that communicates with the inside of the cutting box 1. The position of the two through grooves 702 corresponds to the movement trajectory of the push plate 701 and is used for the passage of debris. The collection box 703 has a sealing plate 704 connected to one side by a hinge.

[0026] After cutting, the bidirectional screw 503 is driven to rotate by the motor b501, which forces the two moving cylinders 6 to move horizontally in the movable groove 502. When the moving cylinders 6 move towards each other, they drive the inclined rod 7 to move along the inclined groove 601, so that the push plate 701 is close to the bottom of the cutting box 1 and scrapes to both sides, pushing the cutting debris into the collection box 703 through the through groove 702, saving manpower and improving the cleanliness of the equipment.

[0027] Working principle:

[0028] Lay the display screen to be cut flat on top of the fixing box 3 and cover it with the negative pressure cylinder 302. Start the air pump 303 to draw air from the suction groove 301 through the air extraction pipe 304 to form a negative pressure. The negative pressure is transmitted to the bottom surface of the display screen through the negative pressure cylinder 302. Adsorption and fixation are achieved by relying on atmospheric pressure difference. Adjust the negative pressure cylinder 302 that needs to be closed according to the size of the display screen. Rotate the screw 403 of the corresponding position of the negative pressure cylinder 302. The screw 403 rotates down to push the rubber ring 402 to press the sealing gasket 401 and close the negative pressure groove 4 channel of the negative pressure cylinder 302 to avoid air leakage in ineffective areas, which would cause a decrease in adsorption force. After cutting, open the air valve of the vent pipe 305 to release the negative pressure and remove the display screen.

[0029] After cutting, the bidirectional screw 503 is driven to rotate by the motor b501, which forces the two moving cylinders 6 to move horizontally in the movable groove 502. When the moving cylinders 6 move towards each other, they drive the inclined rod 7 to move along the inclined groove 601, so that the push plate 701 is close to the bottom of the cutting box 1 and scrapes to both sides, pushing the cutting debris into the collection box 703 through the through groove 702, saving manpower and improving the cleanliness of the equipment.

[0030] In addition, all electrical components mentioned in the article are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control, and the existing publicly available power connection technology will not be described in detail in the article.

[0031] The high-precision LCD cutting machine for display screen production provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A high precision LCD cutting machine for display screen production, characterized in that, include: A cutting box (1) is provided with a motor a (101) installed on one side. A threaded rod a (102) is driven and connected to one side of the motor a (101). A moving block (103) is provided inside the cutting box (1). A threaded hole corresponding to the threaded rod a (102) is opened inside the moving block (103). One end of the threaded rod a (102) passes through the moving block (103) and is rotatably connected to the inner wall of the cutting box (1) through a bearing. A limiting groove (104) is opened on one side of the cutting box (1). A limiting rod (105) is connected to one side of the moving block (103). One end of the limiting rod (105) passes through the limiting groove (104). The fixing components installed inside the cutting box (1) are used to fix the display screens of different specifications. The fixing components include: a fixing box (3), a negative pressure cylinder (302), and an air pump (303). The cleaning component installed inside the cutting box (1) is used to clean up the debris generated during cutting. The cleaning component includes: a movable box (5), a movable groove (502), and a diagonal bar (7).

2. The high-precision LCD cutting machine for display screen production according to claim 1, characterized in that, The bottom of the movable block (103) is connected to an electric push rod (2), the bottom of the electric push rod (2) is connected to a mounting bracket (201), and a cutting machine (202) is installed inside the mounting bracket (201).

3. The high precision LCD cutting machine for display panel production according to claim 1, wherein, The cutting box (1) is equipped with a fixed box (3) inside. The fixed box (3) has an air suction groove (301) inside. The top of the fixed box (3) is equipped with a plurality of negative pressure cylinders (302) that communicate with the air suction groove (301). The cutting box (1) is equipped with an air pump (303). The top of the air pump (303) is connected to an air extraction pipe (304). One end of the air extraction pipe (304) extends into the air suction groove (301). The bottom of the cutting box (1) is equipped with an air release pipe (305). One end of the air release pipe (305) passes through the fixed box (3) and extends into the air suction groove (301). The air release pipe (305) is equipped with a manual air valve to control the connection between the air suction groove (301) and the outside.

4. The high precision LCD cutting machine for display panel production according to claim 3, characterized in that, The multiple negative pressure cylinders (302) have negative pressure grooves (4) inside, and each of the multiple negative pressure cylinders (302) has a sealing gasket (401) installed on its top. Each of the multiple negative pressure cylinders (302) has a screw (403) installed on its top. The negative pressure groove (4) has a thread that matches the screw (403) inside, and a rubber ring (402) is installed on the top of the screw (403).

5. The high precision LCD cutting machine for display panel production according to claim 1, wherein, A movable box (5) is installed on one side of the cutting box (1), and a motor b (501) is installed on one side of the movable box (5). A movable slot (502) is opened inside the movable box (5), and a bidirectional screw (503) is driven and connected to one side of the motor b (501).

6. The high precision LCD cutting machine for display panel production according to claim 5, wherein, The two-way screw (503) is threaded to two movable cylinders (6) on the outside. Each of the two movable cylinders (6) is connected to a slant rod (7) on one side. The cutting box (1) has two slant grooves (601) inside that are adapted to the inclination angle of the slant rod (7).

7. The high precision LCD cutting machine for display panel production according to claim 6, characterized in that, The cutting box (1) is equipped with two push plates (701) inside. One end of each of the two inclined rods (7) passes through the corresponding inclined groove (601) and is connected to the top of the corresponding push plate (701). A collection box (703) is installed on both sides of the cutting box (1). A through groove (702) communicating with the inside of the cutting box (1) is opened on one side of the collection box (703). The positions of the two through grooves (702) correspond to the movement trajectory of the push plate (701) and are used for the passage of debris. A sealing plate (704) is rotatably connected to one side of the collection box (703) by a hinge.