Adsorption device for liquid crystal display screen

Abstract

The adsorption device for the liquid crystal display screen comprises a center round seat, a sliding ring groove is formed in the outer side of the center round seat, a sliding arc block is connected into the sliding ring groove in a sliding mode, a first extension square rod is fixedly connected to one end of the sliding arc block, and a second extension square rod is connected into the first extension square rod in a telescopic mode. The tail end of the second extending square rod is fixedly connected with a suction cup base, a multi-direction ball groove is formed in the top face of the suction cup base, a multi-direction ball is connected into the multi-direction ball groove in a spherical hinge mode, the top end of the multi-direction ball is fixedly connected with a connecting rod, and the top end of the connecting rod is fixedly connected with a vacuum suction cup. The sliding arc block is in sliding fit with the telescopic square rod on the circumference in the annular groove, so that the sucker group can automatically adjust the layout along the edge of the special-shaped screen, for example, the sucker group can perform surrounding multi-point adsorption on triangular, circular and elliptic screens.

Description

Technical Field

[0001] This utility model relates to the field of adsorption equipment technology, specifically an adsorption device for liquid crystal displays. Background Technology

[0002] The adsorption device for LCD screens is a specialized piece of equipment used in the production, processing, and handling of LCD screens. It achieves stable adsorption and precise gripping of the LCD screen surface through vacuum negative pressure, electrostatic adsorption, or other adsorption principles, combined with a flexible sealing structure, pressure sensing and feedback system. At the same time, with the help of multi-degree-of-freedom robotic arms and adaptive buffer mechanisms, it avoids scratches, deformation, and other damage to the LCD screen while ensuring firm adsorption. It can efficiently complete operations such as screen handling, positioning, and bonding, improving the safety and precision of production and processing.

[0003] Existing Chinese patent document CN222159028U discloses an adsorption device for liquid crystal displays, including two crossbars, each with a groove at both ends. Two sleeve rods are positioned between the two crossbars, and movable rods are movably inserted into both sides of each sleeve rod. One end of each movable rod is located within a groove, and a connecting rod is fixedly installed on one side of each movable rod, while a fixing block is fixedly installed on one side of the connecting rod. This patent, through the design of springs, fixing rings, insert rods, and limiting holes, facilitates adjustment of the distance between the two crossbars, making it suitable for adjusting and adsorbing liquid crystal displays of different widths, thus expanding the applicability of the adsorption device. However, this adsorption device for liquid crystal displays still has shortcomings: its four sets of vacuum suction cups are fixed in direction. Although they can be moved and adjusted in both horizontal and vertical directions to adapt to the adsorption needs of liquid crystal displays of different lengths and widths, the resulting shape is still a regular rectangular plane, which cannot adapt to the adsorption needs of some irregularly shaped non-standard displays such as round or triangular shapes. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the above-mentioned adsorption device for liquid crystal displays, the four sets of vacuum suction cups are fixed in direction. Although they can be moved and adjusted in both the horizontal and vertical directions to adapt to the adsorption needs of liquid crystal displays of different lengths and widths, the resulting plane is still a regular rectangular plane, which cannot adapt to the adsorption needs of some irregularly shaped non-standard displays such as round or triangular ones. Therefore, this invention provides an adsorption device for liquid crystal displays.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adsorption device for a liquid crystal display screen, comprising: a central circular seat, a sliding annular groove formed on the outer side of the central circular seat, a sliding arc block slidably connected inside the sliding annular groove, an extension square rod one fixedly connected to one end of the sliding arc block, an extension square rod two telescopically connected inside the extension square rod one, a suction cup seat fixedly connected to the end of the extension square rod two, a multi-directional ball groove formed on the top surface of the suction cup seat, a multi-directional sphere connected by a ball hinge inside the multi-directional ball groove, a connecting rod fixedly connected to the top of the multi-directional sphere, and a vacuum suction cup fixedly connected to the top of the connecting rod.

[0006] As a further embodiment of this utility model: the first extension rod and the second extension rod are telescopically connected to each other, the second extension rod is symmetrically provided with several sets of adjustment grooves, one end of the bottom surface of the first extension rod is provided with an arc-shaped rod, the middle section of the arc-shaped rod is fixedly fitted with a spring seat, and one end of the outer side of the spring seat is fixedly connected with a tension spring.

[0007] As a further embodiment of this utility model: the bow-shaped rod passes through one end of the bottom surface of the first extension square rod and extends into the adjustment groove of the corresponding group. One end of the tension spring is connected to the bow-shaped rod through a spring seat, and the other end is fixed to one end of the bottom surface of the first extension square rod, so as to keep the bow-shaped rod pressed inside the adjustment groove of the corresponding group without external force control, so as to fix the extension degree of the first extension square rod and the second extension square rod.

[0008] As a further embodiment of this utility model: a positioning ring plate is fixedly sleeved on the outer side of the top of the central round seat, a positioning screw hole is opened through one end of the positioning ring plate, a positioning screw rod is screwed through the positioning screw hole, a holding ring is fixedly connected to the top surface of the positioning screw rod, a holding groove is opened at the top of the inner side of the positioning screw hole, and a positioning hole is opened at one end of the top surface of the extension square rod.

[0009] As a further embodiment of this utility model: the number of positioning screw holes is set in several groups, which are evenly arranged in a ring in the positioning ring plate. Each of the several groups of positioning screw holes has a gripping groove structure adapted to the specifications of the gripping ring at the top of its inner side. The positioning screw is screwed into the corresponding positioning screw hole and its end extends into the positioning hole.

[0010] As a further embodiment of this utility model: the number of the first and second extension rods is set in four sets, and each of the four sets of the first and second extension rods is provided with the same number and specifications of suction cup seats, multi-directional ball grooves, multi-directional balls, connecting rods, vacuum suction cups, adjustment grooves, bow-shaped rods, spring seats, tension springs and positioning hole structures.

[0011] As a further embodiment of this utility model: a mounting ring plate is fixedly sleeved on the outer side of the bottom end of the central circular seat, and a mounting bolt is passed through one end of the mounting ring plate. The number of mounting bolts is set to four sets and symmetrically arranged in four directions on the mounting ring plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the sliding arc block slides circumferentially in the annular groove in conjunction with the telescopic square rod, so that the suction cup assembly can automatically adjust its layout along the edge of the irregular screen, such as performing multi-point adsorption around triangular, circular, and elliptical screens.

[0014] 2. The ball joint structure of the multi-directional ball groove and the ball in this utility model allows a single suction cup to tilt independently at a certain angle. Combined with four sets of independently adjustable suction cup components, it can adapt to the adsorption needs of concave or convex curved screens within a certain radius of curvature. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the adsorption device for liquid crystal displays described in this utility model;

[0016] Figure 2 This is a schematic diagram of the sliding annular groove in an adsorption device for a liquid crystal display screen according to the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the multi-directional ball groove in the adsorption device for liquid crystal displays described in this utility model;

[0018] Figure 4 This is a schematic diagram of the bow-shaped rod in the adsorption device for liquid crystal displays described in this utility model;

[0019] Figure 5 This is a schematic diagram of the mounting ring plate in an adsorption device for a liquid crystal display screen according to the present invention;

[0020] Figure 6 This is a magnified structural diagram of point A in the adsorption device for liquid crystal displays described in this utility model.

[0021] In the diagram: 1. Central circular seat; 2. Sliding ring groove; 3. Sliding arc block; 4. Extension square rod one; 5. Extension square rod two; 6. Suction cup seat; 7. Multi-directional ball groove; 8. Multi-directional ball; 9. Connecting rod; 10. Vacuum suction cup; 11. Adjustment groove; 12. Bow-shaped rod; 13. Spring seat; 14. Tension spring; 15. Positioning ring plate; 16. Positioning screw hole; 17. Positioning screw; 18. Holding ring; 19. Holding groove; 20. Positioning hole; 21. Mounting ring plate; 22. Mounting bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] Reference Figures 1 to 6 In this embodiment of the present invention, an adsorption device for a liquid crystal display screen includes: a central circular seat 1, a sliding annular groove 2 on the outer side of the central circular seat 1, a sliding arc block 3 slidably connected inside the sliding annular groove 2, an extension square rod 4 fixedly connected to one end of the sliding arc block 3, an extension square rod 5 telescopically connected inside the extension square rod 4, a suction cup seat 6 fixedly connected to the end of the extension square rod 5, a multi-directional ball groove 7 on the top surface of the suction cup seat 6, a multi-directional ball 8 connected by a ball hinge inside the multi-directional ball groove 7, a connecting rod 9 fixedly connected to the top of the multi-directional ball 8, and a vacuum suction cup 10 fixedly connected to the top of the connecting rod 9.

[0025] Reference Figures 1 to 6Extension rod 1 4 and extension rod 2 5 are telescopically connected to each other. Extension rod 2 5 is symmetrically provided with several sets of adjustment slots 11. One end of the bottom surface of extension rod 1 4 is provided with an arc-shaped rod 12. A spring seat 13 is fixedly sleeved in the middle section of the arc-shaped rod 12. A tension spring 14 is fixedly connected to one end of the outer side of the spring seat 13. The arc-shaped rod 12 passes through one end of the bottom surface of extension rod 1 4 and extends into the corresponding set of adjustment slots 11. One end of the tension spring 14 is connected to the arc-shaped rod 12 through the spring seat 13, and the other end is fixed to one end of the bottom surface of extension rod 1 4, so that the arc-shaped rod 12 is always pressed into the corresponding set of adjustment slots 11 without external force control, so as to fix the degree of telescopic extension of extension rod 1 4 and extension rod 2 5.

[0026] The above-mentioned scheme involves a telescopic connection between extension rod 1 (4) and extension rod 2 (5). Multiple adjustment slots 11 are provided on the side of extension rod 2 (5). An arc-shaped rod 12 passes through the bottom of extension rod 1 (4), with a spring seat 13 fitted in the middle section. A tension spring 14 connects to the bottom of the rod, providing continuous tension to allow the arc-shaped rod 12 to be inserted into the adjustment slots. This design enables rapid adjustment and locking of the telescopic length. Operators can adjust the length by pulling the arc-shaped rod 12 to overcome the spring force and sliding extension rod 2 (5). Releasing the tension spring 14 allows the arc-shaped rod 12 to be inserted into the corresponding adjustment slots 11 to fix its position. Compared to traditional screw fastening, this method is more convenient, and the spring pressure ensures a stable connection, preventing loosening during use.

[0027] Reference Figures 1 to 6 A positioning ring plate 15 is fixedly sleeved on the outer side of the top of the central round base 1. A positioning screw hole 16 is opened through one end of the positioning ring plate 15. A positioning screw 17 is screwed through the positioning screw hole 16. A holding ring 18 is fixedly connected to the top surface of the positioning screw 17. A holding groove 19 is opened on the top of the inner side of the positioning screw hole 16. A positioning hole 20 is opened on one end of the top surface of the extension square rod 4. Several sets of positioning screw holes 16 are arranged evenly in the positioning ring plate 15. The top of the inner side of each set of positioning screw holes 16 is provided with a holding groove 19 structure that matches the specifications of the holding ring 18. The positioning screw 17 is screwed into the corresponding positioning screw hole 16 and its end extends into the positioning hole 20.

[0028] The above scheme is adopted: a positioning ring plate 15 is fitted on the top of the central round seat, with positioning screw holes 16 evenly distributed on it. Positioning screws 17 are screwed into the holes, and a holding ring 18 is provided at the top of the positioning screw 17. A positioning hole 20 is opened on the top surface of the extension square rod 4. When the positioning screw 17 is tightened, the bottom end is inserted into the positioning hole 20. By rotating the positioning screw 17, the extension square rod 4 can be fixed to the positioning ring plate 15, restricting its movement in the sliding ring groove 2, so as to achieve precise positioning of the relative angle of the four sets of vacuum suction cups 10. The holding groove 19 is used to embed the holding ring 18 in it, so as to avoid the top protruding and scratching the LCD screen. Moreover, multiple sets of positioning screw holes support multi-angle fixing, which meets the positioning needs under different working scenarios.

[0029] Reference Figures 1 to 6 There are four sets of extension square rod 1 4 and extension square rod 2 5, and each of the four sets of extension square rod 1 4 and extension square rod 2 5 is equipped with the same number of suction cup seats 6, multi-directional ball grooves 7, multi-directional balls 8, connecting rods 9, vacuum suction cups 10, adjusting grooves 11, bow-shaped rods 12, spring seats 13, tension springs 14 and positioning holes 20. The bottom outer side of the central round seat 1 is fixedly fitted with a mounting ring plate 21, and a mounting bolt 22 is passed through one end of the mounting ring plate 21. There are four sets of mounting bolts 22 symmetrically arranged in four directions on the mounting ring plate 21.

[0030] The above scheme is adopted: a mounting ring plate 21 is fitted on the bottom of the central circular seat, and mounting bolts 22 are symmetrically distributed in four directions on the plate. Four sets of extended square rods, suction cup components and adjustment structures are evenly distributed in a ring on the outside of the central circular seat 1 to form a symmetrical and stable adsorption array. The mounting ring plate 21 and mounting bolts 22 are designed to facilitate the fixing of the device to carriers such as robotic arms and worktables, ensuring the overall structure is stable. The four sets of symmetrically distributed suction cup components can simultaneously adsorb multiple points of the display screen, disperse the force, and avoid stress concentration caused by single-point adsorption. It is especially suitable for the handling and positioning of large-size or irregularly shaped display screens.

[0031] The working principle of this utility model is as follows: When in use, this LCD screen adsorption device takes the central circular seat 1 as the core and achieves precise adsorption and flexible positioning of the screen through the coordinated action of multiple adjustable components. The sliding ring groove 2 and the sliding arc block 3 on the outer side of the central circular seat 1 form a circumferential moving mechanism, so that the connected extension square rod 1 4 can slide along the sliding ring groove 2, thereby adjusting the horizontal position of the vacuum suction cup 10. The extension square rod 2 5 nested inside the extension square rod 1 4 achieves the extension direction extension adjustment through the locking structure composed of the bow-shaped rod 12, the spring seat 13 and the tension spring 14. The operator can freely slide the extension square rod 2 5 to adjust the length by pulling the bow-shaped rod 12 to overcome the tension of the tension spring 14. After releasing, the bow-shaped rod 12 is embedded in the adjustment groove 11 under the action of the tension spring 14 to fix the position, ensuring the convenience and stability of height adjustment.

[0032] The multi-directional ball groove 7 on the top surface of the suction cup seat 6 forms a ball joint connection with the multi-directional ball 8, giving the vacuum suction cup 10 multiple degrees of freedom to tilt and rotate, so that it can closely fit the surface of a flat, curved or irregularly shaped display screen. At the same time, the positioning screw holes 16 and positioning screws 17 evenly distributed on the positioning ring plate 15 at the top of the central round seat 1 can fix the extension square rod 4 to the positioning ring plate 15 by rotating the positioning screw 17, restricting its movement in the sliding ring groove 2, and realizing the precise positioning of the vacuum suction cup 10 relative angle. The holding ring 18 at the top of the positioning screw 17 cooperates with the holding groove 19 to prevent protruding parts from scratching the display screen.

[0033] The mounting ring plate 21 at the bottom of the device and the four sets of symmetrically distributed mounting bolts 22 make it easy to fix it to a carrier such as a robotic arm or a workbench. The four sets of extended square rods and suction cup assemblies are evenly distributed in a ring, which can simultaneously adsorb the display screen from multiple points, disperse the force, and avoid stress concentration caused by single-point adsorption.

[0034] During operation, the components work together to first adjust the position of the suction cup by sliding and telescopic movement, then adjust the fitting angle using the ball joint structure, and finally use the vacuum suction cup to generate negative pressure to adsorb the display screen, achieving efficient, stable and non-destructive handling and positioning operations.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adsorption device for a liquid crystal display, comprising: The central circular seat (1) is characterized in that a sliding annular groove (2) is provided on the outer side of the central circular seat (1), a sliding arc block (3) is slidably connected inside the sliding annular groove (2), an extension square rod (4) is fixedly connected to one end of the sliding arc block (3), an extension square rod (5) is telescopically connected inside the extension square rod (4), a suction cup seat (6) is fixedly connected to the end of the extension square rod (5), a multi-directional ball groove (7) is provided on the top surface of the suction cup seat (6), a multi-directional ball (8) is connected to the multi-directional ball groove (7) by a ball hinge, a connecting rod (9) is fixedly connected to the top of the multi-directional ball (8), and a vacuum suction cup (10) is fixedly connected to the top of the connecting rod (9).

2. The suction device for a liquid crystal display panel according to claim 1, wherein The first extension rod (4) and the second extension rod (5) are connected to each other in a telescopic manner. The second extension rod (5) is symmetrically provided with several sets of adjustment grooves (11). One end of the bottom surface of the first extension rod (4) is provided with an arc-shaped rod (12). A spring seat (13) is fixedly sleeved in the middle section of the arc-shaped rod (12). A tension spring (14) is fixedly connected to one end of the outer side of the spring seat (13).

3. The suction device for a liquid crystal display panel according to claim 2, wherein The bow-shaped rod (12) passes through one end of the bottom surface of the first extension square rod (4) and extends into the adjustment groove (11) of the corresponding group. One end of the tension spring (14) is connected to the bow-shaped rod (12) through the spring seat (13), and the other end is fixed to one end of the bottom surface of the first extension square rod (4). The bow-shaped rod (12) is kept pressed inside the adjustment groove (11) of the corresponding group without external force control, so as to fix the extension degree of the first extension square rod (4) and the second extension square rod (5).

4. The suction device for a liquid crystal display panel according to claim 1, wherein A positioning ring plate (15) is fixedly sleeved on the outer side of the top of the central round seat (1). A positioning screw hole (16) is opened through one end of the positioning ring plate (15). A positioning screw rod (17) is screwed through the positioning screw hole (16). A holding ring (18) is fixedly connected to the top surface of the positioning screw rod (17). A holding groove (19) is opened at the top of the inner side of the positioning screw hole (16). A positioning hole (20) is opened at one end of the top surface of the extension square rod (4).

5. The suction device for a liquid crystal display panel according to claim 4, wherein The number of positioning screw holes (16) is set in several groups, which are evenly arranged in a ring in the positioning ring plate (15). The top of the inner side of each of the several groups of positioning screw holes (16) is provided with a holding groove (19) structure that is compatible with the specifications of the holding ring (18). The positioning screw (17) is screwed into the corresponding positioning screw hole (16) and its end extends into the positioning hole (20).

6. The suction device for a liquid crystal display panel according to claim 1, wherein The number of extension square rod one (4) and extension square rod two (5) is set in four sets, and each of the four sets of extension square rod one (4) and extension square rod two (5) is provided with the same number of suction cup seats (6), multi-directional ball grooves (7), multi-directional spheres (8), connecting rods (9), vacuum suction cups (10), adjustment grooves (11), bow-shaped rods (12), spring seats (13), tension springs (14) and positioning holes (20) structures.

7. The adsorption device for a liquid crystal display screen according to claim 1, characterized in that, The central circular seat (1) is fixedly fitted with an installation ring plate (21) on the outer side of its bottom end. An installation bolt (22) is passed through one end of the installation ring plate (21). The number of installation bolts (22) is set in four groups, which are symmetrically arranged in four directions on the installation ring plate (21).

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