Clamping device for etching processing of liquid crystal display panel
By setting guide rails and contact structures driven by magnetic repulsion on the LCD panel clamping device, multi-position clamping and stable flipping are achieved, solving the problem of insufficient clamping stability in existing devices and improving etching processing accuracy and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-03-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing LCD panel clamping devices can only clamp at a single position, resulting in insufficient clamping stability. This causes the panel to easily undergo slight displacement during processing, affecting the etching accuracy.
A clamping device with guide rails on the substrate is used. Through the coordinated clamping of the first and second clamping components and the pressure component, the magnetic repulsive force drives the contacts to press against the liquid crystal display panel, realizing multi-position clamping and positioning and continuous pressure limiting. The panel is stably flipped by the rotating component.
It achieves multi-position clamping and stable flipping of LCD display panels, avoiding displacement during processing, ensuring etching accuracy, and simplifying the operation process.
Smart Images
Figure CN121733458A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of liquid crystal display panel processing technology, and in particular to a clamping device for etching liquid crystal display panels. Background Technology
[0002] During the etching process of LCD panels, the panels need to be fixed by a clamping device to ensure etching accuracy.
[0003] Most existing LCD panel clamping devices can only achieve clamping and positioning at a single position, and the limiting stability after clamping is insufficient. This makes it difficult to form a continuous and stable limiting effect on the panel through the cooperative pressure structure when clamping the panel. As a result, the panel is prone to slight displacement during processing, which affects the accuracy of etching and fails to meet the requirements of high-precision etching. Summary of the Invention
[0004] In order to solve the technical problems existing in the background art, the present invention proposes a clamping device for etching processing of liquid crystal display panels.
[0005] The present invention provides a liquid crystal display panel etching and clamping device, comprising: a substrate, a first seat, a second seat, a first clamping component, and a first pressure component. Two parallel guide rails are provided on the substrate. The first seat and the second seat are movably mounted on the two guide rails, and the two guide rails can drive the first seat and the second seat to move synchronously. The first clamping component is mounted on the first seat and the second seat and is used to clamp the liquid crystal display panel. The first pressure component is mounted on the first clamping component to limit the liquid crystal display panel clamped on the first clamping component.
[0006] Preferably, the first clamping assembly includes a first cylinder mounted on a first base and a second cylinder mounted on a second base. The output end of the first cylinder is equipped with a first bending plate, and the output end of the second cylinder is equipped with a second bending plate. The grooves on the first bending plate and the second bending plate correspond to two parallel edges on the liquid crystal display panel, respectively.
[0007] Preferably, the first pressure assembly includes a first cavity disposed on a first bending plate and a second cavity disposed on a second bending plate. A first contact is movably mounted on the first cavity, a first magnet is fixedly mounted in the first cavity, and a second magnet is fixedly mounted in the first contact. The first magnet and the second magnet repel each other, and the repulsive force between the second magnet and the first magnet can drive the first contact to press against the liquid crystal display panel after the first contact contacts the liquid crystal display panel. A second contact is movably mounted on the second cavity, a third magnet is fixedly mounted in the second cavity, and a fourth magnet is fixedly mounted in the second contact. The third magnet and the fourth magnet repel each other, and the repulsive force between the third magnet and the fourth magnet can drive the second contact to press against the liquid crystal display panel after the second contact contacts the liquid crystal display panel.
[0008] Preferably, the device further includes a second clamping assembly and a second pressure assembly. The second clamping assembly includes a third cylinder mounted on the first base and a fourth cylinder mounted on the second base. A third bending plate is installed at the output end of the third cylinder, and a fourth bending plate is installed at the output end of the fourth cylinder. The grooves on the third and fourth bending plates correspond to two parallel edges on the liquid crystal display panel, respectively. The third bending plate is located above the first bending plate, and the fourth bending plate is located above the second bending plate. The two edges corresponding to the first and second bending plates belong to the first sidewall of the liquid crystal display panel, and the two edges corresponding to the third and fourth bending plates belong to the second sidewall of the liquid crystal display panel that is parallel to the first sidewall.
[0009] Preferably, the second pressure assembly includes a third cavity disposed on the third bending plate and a fourth cavity disposed on the fourth bending plate. A third contact is movably mounted on the third cavity, a fifth magnet is fixedly mounted in the third cavity, and a sixth magnet is fixedly mounted in the third contact. The fifth and sixth magnets repel each other, and the repulsive force between the sixth and fifth magnets can drive the third contact to press against the liquid crystal display panel after the third contact contacts the liquid crystal display panel. A fourth contact is movably mounted on the fourth cavity, a seventh magnet is fixedly mounted in the fourth cavity, and an eighth magnet is fixedly mounted in the fourth contact. The seventh and eighth magnets repel each other, and the repulsive force between the seventh and eighth magnets can drive the fourth contact to press against the liquid crystal display panel after the fourth contact contacts the liquid crystal display panel.
[0010] Preferably, the system further includes a rotating assembly, which includes a first motor and a second motor respectively mounted on a first base and a second base. A first turntable is mounted on the output end of the first motor, and a second turntable is mounted on the output end of the second motor. The first turntable and the second turntable are arranged opposite to each other. A first cylinder and a third cylinder are both fixedly mounted on the first turntable, and a second cylinder and a fourth cylinder are both fixedly mounted on the second turntable. The first motor and the second motor can drive the first turntable and the second turntable to rotate synchronously to drive the liquid crystal display panel to flip.
[0011] The present invention proposes a liquid crystal display panel etching clamping device, which has the following advantages: through the coordinated clamping of the first clamping component and the second clamping component, multi-position clamping and positioning of the parallel sidewalls of the liquid crystal display panel can be achieved. With the contact abutment structure driven by the magnetic repulsion force in the first and second pressure components, continuous and bidirectional pressure limit can be formed on the panel, effectively preventing the panel from shifting during processing and ensuring the etching accuracy. It can also drive the turntable and clamping components to rotate synchronously through the synchronously driven motor, so as to achieve stable flipping of the panel. The etching processing of different sides of the panel can be completed without disassembly and repositioning, simplifying the operation process. Attached Figure Description
[0012] Figure 1 This is a front view of a liquid crystal display panel etching clamping device proposed in this invention; Figure 2 This is a top view of a liquid crystal display panel etching clamping device proposed in this invention; Figure 3 This is a diagram showing the internal structure of the first bent plate of a liquid crystal display panel etching clamping device proposed in this invention. Detailed Implementation
[0013] refer to Figure 1-3 This invention proposes a clamping device for etching liquid crystal display panels, comprising: a substrate 1, a first seat 2, a second seat 3, a first clamping assembly 4, and a first pressure assembly 5. The substrate 1 has a plate-like structure, with two parallel guide rails 6 fixedly arranged on its top surface. The guide rails 6 extend in the same direction and are arranged along the length or width of the substrate 1. Both the first seat 2 and the second seat 3 are sliding structures adapted to the guide rails 6, and are movably mounted on the two guide rails 6 respectively, with their mounting positions on the guide rails 6 corresponding to each other. The two guide rails 6 are equipped with a synchronous driving mechanism, which drives the first seat 2 and the second seat 3 to move synchronously along the extension direction of the guide rails 6. During the synchronous movement of the first seat 2 and the second seat 3, the relative distance between them remains constant. The first clamping component 4 is respectively mounted on the opposite sides of the first base 2 and the second base 3, and is used to clamp and position the liquid crystal display panel from both sides. The first pressure component 5 is integrated on the first clamping component 4, and the working end of the first pressure component 5 faces the clamped liquid crystal display panel to apply positive pressure to the liquid crystal display panel clamped on the first clamping component 4, thereby further limiting the liquid crystal display panel in the clamping direction and preventing displacement during the clamping process.
[0014] The first clamping assembly 4 includes a first cylinder 41 mounted on the opposite side of the first base 2 and a second cylinder 42 mounted on the opposite side of the second base 3. The first cylinder 41 and the second cylinder 42 are mounted at the same height, and their output ends are positioned opposite each other. The output end of the first cylinder 41 is fixedly mounted with a first bending plate 411 via a detachable connection structure, and the output end of the second cylinder 42 is fixedly mounted with a second bending plate 421 via a detachable connection structure of the same specifications. The bending directions of the first bending plate 411 and the second bending plate 421 correspond to each other, and both have grooves on the side facing the liquid crystal display panel. The grooves on the first bending plate 411 and the second bending plate 421 are on the same horizontal plane and correspond to two parallel edges on the liquid crystal display panel, respectively. The contours of the grooves are adapted to the contours of the corresponding edges of the liquid crystal display panel, so that the two edges of the liquid crystal display panel can be embedded in the corresponding grooves, achieving positioning guidance during clamping.
[0015] The first pressure assembly 5 includes a first cavity 51 integrally formed on the side of the first bending plate 411 facing the liquid crystal display panel, and a second cavity integrally formed on the side of the second bending plate 421 facing the liquid crystal display panel. The first cavity 51 and the second cavity have the same structural specifications and are positioned correspondingly. The first cavity 51 is a hollow structure with one open end facing the liquid crystal display panel. A first contact 52 is movably inserted through the open end of the first cavity 51 and can reciprocate along the axial direction of the first cavity 51. The end of the first contact 52 facing the liquid crystal display panel is a flat end face. A first magnet 53 is fixedly installed inside the first cavity 51 at a position away from the open end. A second magnet 54 is fixedly installed inside the first contact 52 at a position close to the inside of the first cavity 51. The first magnet 53 and the second magnet 54 are installed in the same direction and have the same magnetic poles, which causes a repulsive force between the first magnet 53 and the second magnet 54. When the first clamping component 4 clamps the liquid crystal display panel, the end of the first contact 52 facing the liquid crystal display panel first contacts the liquid crystal display panel. As the clamping action of the first clamping component 4 continues, the repulsive force between the second magnet 54 and the first magnet 53 gradually increases. This repulsive force can drive the first contact 52 to continuously press against the liquid crystal display panel. The internal structure of the second cavity is completely the same as that of the first cavity 51. The second contact 55 is movably installed at the opening end of the second cavity. The third magnet is fixedly installed at the position away from the opening end inside the second cavity. The fourth magnet is fixedly installed at the end of the second contact 55 near the inside of the second cavity. The magnetic poles of the third magnet and the fourth magnet are the same, and they generate a repulsive force between them. When the second contact 55 contacts the liquid crystal display panel, the repulsive force between the third magnet and the fourth magnet can drive the second contact 55 to continuously press against the liquid crystal display panel. Thus, through the synergistic effect of the first contact 52 and the second contact 55, bidirectional pressure limiting of the liquid crystal display panel at the corresponding clamping position is achieved.
[0016] The clamping device also includes a second clamping assembly 7 and a second pressure assembly 8. The second clamping assembly 7 has the same structural specifications as the first clamping assembly 4 and is used to clamp the liquid crystal display panel from another set of parallel edges. The second clamping assembly 7 includes a third cylinder 71 installed on the opposite side of the first base 2 and a fourth cylinder 72 installed on the opposite side of the second base 3. The third cylinder 71 and the fourth cylinder 72 have the same installation height and their output ends are arranged opposite each other. The third cylinder 71 and the first cylinder 41 are arranged vertically, and the fourth cylinder 72 and the second cylinder 42 are arranged vertically. The output end of the third cylinder 71 is fixedly installed with a third bending plate 711 through a detachable connection structure, and the output end of the fourth cylinder 72 is fixedly installed with a fourth bending plate 721 through a detachable connection structure of the same specification. The bending directions of the third bending plate 711 and the fourth bending plate 721 are opposite to each other, and both have grooves on the side facing the liquid crystal display panel. The grooves on the third bending plate 711 and the fourth bending plate 721 are on the same horizontal plane and correspond to two other parallel edges on the liquid crystal display panel, respectively. The contours of the grooves are adapted to the contours of the corresponding edges. The third bending plate 711 is located above the first bending plate 411, and the fourth bending plate 721 is located above the second bending plate 421. The two edges corresponding to the first bending plate 411 and the second bending plate 421 belong to the first sidewall of the liquid crystal display panel, and the two edges corresponding to the third bending plate 711 and the fourth bending plate 721 belong to the second sidewall of the liquid crystal display panel that is parallel to the first sidewall. Through the coordinated clamping of the first clamping component 4 and the second clamping component 7, the liquid crystal display panel can be clamped and positioned in multiple positions in the vertical direction.
[0017] The second pressure assembly 8 has the same structural specifications as the first pressure assembly 5. It includes a third cavity integrally formed on the side of the third bending plate 711 facing the liquid crystal display panel, and a fourth cavity integrally formed on the side of the fourth bending plate 721 facing the liquid crystal display panel. The third cavity and the fourth cavity have the same structural specifications, and their arrangement positions correspond. The third cavity is a hollow structure with one open end facing the liquid crystal display panel. The third contact 81 is movably installed at the open end of the third cavity, and the third contact 81 can reciprocate along the axial direction of the third cavity. The end of the third contact 81 facing the liquid crystal display panel is a flat end face. A fifth magnet is fixedly installed inside the third cavity at a position away from the open end, and a sixth magnet is fixedly installed inside the third contact 81 at a position close to the inside of the third cavity. The magnetic poles of the fifth magnet and the sixth magnet are the same, and they generate a repulsive force between them. When the second clamping component 7 clamps the liquid crystal display panel, the end of the third contact 81 facing the liquid crystal display panel first contacts the liquid crystal display panel. The repulsive force between the fifth magnet and the sixth magnet can drive the third contact 81 to continuously press against the liquid crystal display panel. The internal structure of the fourth cavity is completely the same as that of the third cavity. The fourth contact 82 is movably installed at the open end of the fourth cavity. The seventh magnet is fixedly installed inside the fourth cavity at a position away from the open end. The eighth magnet is fixedly installed inside the fourth contact 82 at a position close to the inside of the fourth cavity. The magnetic poles of the seventh magnet and the eighth magnet are the same, and they generate a repulsive force between them. When the fourth contact 82 contacts the liquid crystal display panel, the repulsive force between the seventh magnet and the eighth magnet can drive the fourth contact 82 to continuously press against the liquid crystal display panel. Through the synergistic effect of the third contact 81 and the fourth contact 82, the liquid crystal display panel is bidirectionally pressure-limited at the second clamping position. This, together with the first pressure component 5, further improves the clamping stability of the liquid crystal display panel.
[0018] The clamping device also includes a rotating assembly 9, which drives the clamped liquid crystal display panel to rotate to adapt to the multi-directional requirements of etching processing. The rotating assembly 9 includes a first motor and a second motor respectively mounted on opposite sides of the first base 2 and the second base 3. The first motor and the second motor are mounted at the same height, and their output shafts are coaxial. The output end of the first motor is fixedly mounted with a first turntable 91 via a coupling, and the output end of the second motor is fixedly mounted with a second turntable 92 via a coupling of the same specification. The first turntable 91 and the second turntable 92 are arranged opposite each other, and the surfaces of both are perpendicular to the axis of the motor output shaft. The first cylinder 41 and the third cylinder 71 are both fixedly mounted on the side of the first turntable 91 facing the second turntable 92 by bolts, and the arrangement positions of the first cylinder 41 and the third cylinder 71 on the first turntable 91 correspond to the installation positions on the first base 2; the second cylinder 42 and the fourth cylinder 72 are both fixedly mounted on the side of the second turntable 92 facing the first turntable 91 by bolts of the same specification, and the arrangement positions of the second cylinder 42 and the fourth cylinder 72 on the second turntable 92 correspond to the installation positions on the second base 3. The first motor and the second motor are driven in tandem through a synchronous control module, which can drive the first turntable 91 and the second turntable 92 to rotate synchronously at the same speed and direction. Then, the clamped liquid crystal display panel is driven to rotate synchronously through the first clamping component 4 and the second clamping component 7. During the rotation, the clamping state of the first clamping component 4 and the second clamping component 7 on the liquid crystal display panel remains unchanged, and the limiting state of the first pressure component 5 and the second pressure component 8 is maintained synchronously, ensuring that the liquid crystal display panel will not be displaced or fall off during the rotation, thus meeting the processing requirements of different surfaces in the etching process.
[0019] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A clamping device for etching liquid crystal display panels, characterized in that, include: The substrate (1), the first seat (2), the second seat (3), the first clamping assembly (4) and the first pressure assembly (5) are provided. The substrate (1) is provided with two parallel guide rails (6). The first seat (2) and the second seat (3) are respectively movably mounted on the two guide rails (6). The two guide rails (6) can drive the first seat (2) and the second seat (3) to move synchronously. The first clamping assembly (4) is mounted on the first seat (2) and the second seat (3) and is used to clamp the liquid crystal display panel. The first pressure assembly (5) is mounted on the first clamping assembly (4) to limit the liquid crystal display panel clamped on the first clamping assembly (4).
2. The liquid crystal display panel etching clamping device according to claim 1, characterized in that, The first clamping assembly (4) includes a first cylinder (41) mounted on a first base (2) and a second cylinder (42) mounted on a second base (3). The output end of the first cylinder (41) is equipped with a first bending plate (411), and the output end of the second cylinder (42) is equipped with a second bending plate (421). The grooves on the first bending plate (411) and the second bending plate (421) correspond to two parallel edges on the liquid crystal display panel, respectively.
3. The liquid crystal display panel etching clamping device according to claim 2, characterized in that, The first pressure assembly (5) includes a first cavity (51) disposed on a first bending plate (411) and a second cavity disposed on a second bending plate (421). A first contact (52) is movably mounted on the first cavity (51). A first magnet (53) is fixedly mounted in the first cavity (51). A second magnet (54) is fixedly mounted in the first contact (52). The first magnet (53) and the second magnet (54) repel each other. The repulsive force between the second magnet (54) and the first magnet (53) can drive the first contact (52) to press against the liquid crystal display panel after the first contact (52) contacts the liquid crystal display panel. A second contact (55) is movably mounted on the second cavity. A third magnet is fixedly mounted in the second cavity. A fourth magnet is fixedly mounted in the second contact (55). The third magnet and the fourth magnet repel each other. The repulsive force between the third magnet and the fourth magnet can drive the second contact (55) to press against the liquid crystal display panel after the second contact (55) contacts the liquid crystal display panel.
4. The liquid crystal display panel etching clamping device according to claim 3, characterized in that, It also includes a second clamping assembly (7) and a second pressure assembly (8). The second clamping assembly (7) includes a third cylinder (71) mounted on the first base (2) and a fourth cylinder (72) mounted on the second base (3). The output end of the third cylinder (71) is equipped with a third bending plate (711), and the output end of the fourth cylinder (72) is equipped with a fourth bending plate (721). The grooves on the third bending plate (711) and the fourth bending plate (721) correspond to two parallel edges on the liquid crystal display panel. The third bending plate (711) is located above the first bending plate (411), and the fourth bending plate (721) is located above the second bending plate (421). The two edges corresponding to the first bending plate (411) and the second bending plate (421) belong to the first sidewall of the liquid crystal display panel, and the two edges corresponding to the third bending plate (711) and the fourth bending plate (721) belong to the second sidewall of the liquid crystal display panel that is parallel to the first sidewall.
5. The liquid crystal display panel etching clamping device according to claim 4, characterized in that, The second pressure assembly (8) includes a third cavity disposed on a third bending plate (711) and a fourth cavity disposed on a fourth bending plate (721). A third contact (81) is movably mounted on the third cavity. A fifth magnet is fixedly mounted in the third cavity. A sixth magnet is fixedly mounted in the third contact (81). The fifth magnet and the sixth magnet repel each other. The repulsive force between the sixth magnet and the fifth magnet can drive the third contact (81) to press against the liquid crystal display panel after the third contact (81) contacts the liquid crystal display panel. A fourth contact (82) is movably mounted on the fourth cavity. A seventh magnet is fixedly mounted in the fourth cavity. An eighth magnet is fixedly mounted in the fourth contact (82). The seventh magnet and the eighth magnet repel each other. The repulsive force between the seventh magnet and the eighth magnet can drive the fourth contact (82) to press against the liquid crystal display panel after the fourth contact (82) contacts the liquid crystal display panel.
6. The liquid crystal display panel etching clamping device according to claim 5, characterized in that, It also includes a rotating assembly (9), which includes a first motor and a second motor respectively mounted on the first base (2) and the second base (3). The output end of the first motor is equipped with a first turntable (91), and the output end of the second motor is equipped with a second turntable (92). The first turntable (91) and the second turntable (92) are arranged opposite to each other. The first cylinder (41) and the third cylinder (71) are both fixedly mounted on the first turntable (91), and the second cylinder (42) and the fourth cylinder (72) are both fixedly mounted on the second turntable (92). The first motor and the second motor can drive the first turntable (91) and the second turntable (92) to rotate synchronously to drive the liquid crystal display panel to flip.