Overturning clamp for liquid crystal screen production

Abstract

The utility model relates to an overturning clamp for liquid crystal screen production, and belongs to the technical field of glass production. Comprising a base, the two ends, in the length direction, of the base are the front end and the rear end correspondingly, the base is provided with an opening in the middle top, a clamping device and two connecting rod devices are arranged on the base, the clamping device is used for clamping a liquid crystal screen, and the connecting rod devices are used for overturning the clamping device; the two connecting rod devices are arranged on the two sides of the clamping device in the length direction correspondingly. The device is simple in structure, and the production cost and the maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to a flipping fixture for LCD screen production, belonging to the field of glass production technology. Background Technology

[0002] In the production process of LCD screens, many steps require flipping the screens, such as bonding, inspection, and adhesive application. Flipping fixtures can quickly and accurately complete the flipping action, avoiding the inefficiency and instability of manual flipping.

[0003] Chinese Patent (CN212978064U) discloses a flipping fixture for LCD screen production, including a base. A first groove is formed in the center of the top of the base. Two first sliders are slidably connected inside the first groove. A fixing frame is fixedly mounted on the top of each of the two first sliders. A fixing mechanism is mounted on the bottom of each of the two fixing frames. A turntable is rotatably connected to the top of one side of each of the two fixing frames. Gears are rotatably connected to the bottom of one side of each of the two fixing frames, and the two gears mesh with the corresponding gear rings. Fixing strips are fixedly mounted on both sides of each of the two turntables. This invention utilizes the first groove at the top of the base, where the first sliders inside the first groove move the two fixing frames, thus facilitating the adjustment of the distance between the two fixing frames. The distance between the two fixing frames is determined by scale lines engraved on the side of the top of the base, making it suitable for fixing LCD screens of different lengths.

[0004] The problems with the aforementioned patents are that they have complex structures, high production costs, and high maintenance costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a flip fixture for LCD screen production, which has a simple structure, reduces production costs, and reduces maintenance costs.

[0006] The present invention discloses a flipping fixture for LCD screen production, comprising a base, with the two ends of the base along its length being the front end and the rear end, the base being hollow inside with an open top, and a clamping device and two connecting rod devices being provided on the base. The clamping device is used to clamp the LCD screen, and the connecting rod devices are used to flip the clamping device. The two connecting rod devices are respectively located on both sides of the clamping device along its length.

[0007] The clamping device includes a square frame, with several grippers evenly distributed on the inner wall of the square frame. The grippers are connected to the inner wall of the square frame by springs, and the LCD screen is installed inside the square frame through the grippers.

[0008] The linkage device includes a first link, a second link, a third link, a first support plate, and a second support plate. One end of the first link is located at the middle of the base along its length and is rotatably connected to the inner wall of the base. The other end of the first link is located near the front end of the base and is rotatably connected to the outer wall of the square frame. The first support plate is located at the middle of the base frame along its length. The second support plate is located on the base frame near the rear end and is higher than the first support plate. The first end of the second link is connected to the square frame via a pivot. The second link is rotatably connected to the pivot, which is fixed to the square frame. The pivot overlaps with the top of the first support plate. The tail end of the second link is rotatably connected to the upper part of the second support plate. The second link is connected to the third link and is arranged in a V-shape.

[0009] A drag bar is installed between the two second support plates corresponding to the bottom of the square frame. The drag bar is located at the bottom of the square frame and can provide additional support for the square frame.

[0010] The square frame has several weight blocks evenly distributed on one side near the front end of the base. The weight blocks ensure that during the flipping process, the side with the weight blocks always flips downwards, and the side without the weight blocks always flips upwards. The square frame is prone to a flipping dead point when flipping, that is, when it is flipped to about 90 degrees, the square frame flips back under the action of gravity, failing to achieve a 180-degree flip. The weight blocks can also increase the inertia of the flipping, using inertia to overcome the flipping dead point.

[0011] The number of weight-adding blocks is two.

[0012] The first support plate has a groove on its top, the shape of which matches the shape of the rotating shaft. This matching of the groove and the rotating shaft provides precise positioning and stable support for the shaft.

[0013] A connecting rod is provided between the two third links. The connecting rod connects the two third links together, forming a more stable structural frame. This design can significantly enhance the rigidity of the entire flipping fixture and reduce deformation or shaking caused by external forces or inertia during the flipping process.

[0014] The connecting rod is equipped with an anti-slip pattern. The anti-slip pattern provides a better grip, reduces operational errors caused by slipping, and improves operational safety and reliability.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The clamping device employs multiple grippers connected to the inner wall of a square frame via springs, enabling uniform and stable clamping of the LCD screen. The springs' elastic design accommodates LCD screens of different sizes while providing cushioning during clamping to prevent damage from excessive clamping force. The device's flipping function is achieved through the cooperation of multiple linkages—the first, second, and third linkages—and a support plate. This linkage mechanism ensures a smooth and reliable flipping process, preventing the LCD screen from shaking or falling off during rotation. Its simple structure reduces production and maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is a first-view perspective three-dimensional structural diagram of Embodiment 1 of this utility model;

[0019] Figure 3 This is a second-view perspective three-dimensional structural diagram of Embodiment 1 of this utility model;

[0020] Figure 4 yes Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 yes Figure 2 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Base; 101. Front end; 102. Rear end; 2. Weighting block; 3. Square frame; 4. First connecting rod; 5. First support plate; 6. Second connecting rod; 7. Second support plate; 8. Third connecting rod; 9. Spring; 10. Gripper; 11. LCD screen; 12. Rotating shaft; 13. Connecting rod; 14. Trailing rod. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments:

[0024] Example 1

[0025] like Figures 1-5 As shown, the flipping fixture for LCD screen production of this utility model includes a base 1. The two ends of the base 1 along the length direction are a front end 101 and a rear end 102, respectively. The base 1 is hollow inside with an open top. A clamping device and two connecting rod devices are provided on the base 1. The clamping device is used to clamp the LCD screen 11, and the connecting rod devices are used to flip the clamping device. The two connecting rod devices are respectively placed on both sides of the clamping device along the length direction.

[0026] The clamping device includes a square frame 3, with a plurality of grippers 10 evenly distributed on the inner wall of the square frame 3. The grippers 10 are connected to the inner wall of the square frame 3 by springs 9. The LCD screen 11 is mounted inside the square frame 3 via the grippers 10. Figure 4 As shown;

[0027] The linkage device includes a first link 4, a second link 6, a third link 8, a first support plate 5, and a second support plate 7. One end of the first link 4 is placed at the middle of the base 1 along its length and is rotatably connected to the inner wall of the base 1. The other end of the first link 4 is set near the front end 101 of the base 1 and is rotatably connected to the outer wall of the square frame 3. The first support plate 5 is placed at the middle of the side frame of the base 1 along its length. The second support plate 7 is placed on the side frame of the base 1 near the rear end 102. The height of the second support plate 7 is higher than that of the first support plate 5. The first end of the second link 6 is connected to the square frame 3 through a pivot 12. The second link 6 is rotatably connected to the pivot 12. The pivot 12 is fixed to the square frame 3 and overlaps with the top of the first support plate 5. The tail end of the second link 6 is rotatably connected to the upper part of the second support plate 7. The second link 6 is connected to the third link 8 and is set in a V-shape.

[0028] A drag bar 14 is installed at the bottom of the square frame 3 between the two second support plates 7, as shown below. Figure 3 As shown.

[0029] Several weight-adding blocks 2 are evenly distributed on one side of the square frame 3 near the front end 101 of the base 1. There are two weight-adding blocks 2 in total.

[0030] The top of the first support plate 5 is provided with a groove, the shape of which is adapted to the shape of the rotating shaft 12.

[0031] A connecting rod 13 is provided between the two third links 8, such as Figure 2 As shown. The connecting rod 13 is provided with anti-slip patterns.

[0032] Working process: The initial state is as follows Figure 1 As shown, the LCD screen 11 is installed in the square frame 3 via the gripper 10. Manually pressing the connecting rod 13 downwards causes the first end of the second connecting rod 6 to lift upwards, and the first connecting rod 4 to swing backwards. The end of the square frame 3 with the weight block 2 rotates downwards, while the other end rotates upwards, meaning the square frame 3 rotates counter-clockwise. Then, the pressed connecting rod 13 is slowly released, and the square frame 3 continues to rotate counter-clockwise under inertia until it rotates 180 degrees and attaches to the drag rod 14. When it is necessary to flip the LCD screen 11 back, manually pressing the connecting rod 13 downwards again causes the first end of the second connecting rod 6 to lift upwards, and the first connecting rod 4 to swing forwards. The end of the square frame 3 with the weight block 2 rotates downwards, while the other end rotates upwards, meaning the square frame 3 rotates clockwise. Then, the pressed connecting rod 13 is slowly released, and the square frame 3 continues to rotate clockwise under inertia until it rotates 180 degrees and attaches to the drag rod 14.

[0033] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A flipping fixture for LCD screen production, characterized in that, Includes a base (1), with the two ends of the base (1) along the length direction being the front end (101) and the rear end (102), the base (1) is hollow inside with an open top, and a clamping device and two connecting rod devices are provided on the base (1). The clamping device is used to clamp the LCD screen (11), and the connecting rod devices are used to flip the clamping device. The two connecting rod devices are respectively placed on both sides of the clamping device along the length direction. The clamping device includes a square frame (3), and several clamps (10) are evenly distributed on the inner wall of the square frame (3). The clamps (10) are connected to the inner wall of the square frame (3) by springs (9). The LCD screen (11) is installed inside the square frame (3) by the clamps (10). The linkage device includes a first link (4), a second link (6), a third link (8), a first support plate (5), and a second support plate (7). One end of the first link (4) is placed at the middle of the base (1) along its length and is rotatably connected to the inner wall of the base (1). The other end of the first link (4) is set near the front end (101) of the base (1) and is rotatably connected to the outer wall of the square frame (3). The first support plate (5) is placed at the middle of the side frame of the base (1) along its length. The second support plate (7) is placed on the base (1). Near the rear end (102), the second support plate (7) is set higher than the first support plate (5). The first end of the second connecting rod (6) is connected to the square frame (3) through the pivot (12). The second connecting rod (6) is rotatably connected to the pivot (12). The pivot (12) is fixed to the square frame (3). The pivot (12) overlaps with the top of the first support plate (5). The tail end of the second connecting rod (6) is rotatably connected to the upper part of the second support plate (7). The second connecting rod (6) is connected to the third connecting rod (8) and set in a V shape.

2. The turn-over jig for liquid crystal panel production according to claim 1, wherein A drag bar (14) is set at the bottom of the corresponding square frame (3) between the two second support plates (7).

3. The flipping fixture for LCD screen production according to claim 2, characterized in that, Several weight-adding blocks (2) are evenly distributed on one side of the square frame (3) near the front end (101) of the base (1).

4. The turn-over jig for liquid crystal panel production according to claim 3, wherein The number of weight-adding blocks (2) is two.

5. The turn-over jig for liquid crystal panel production according to claim 4, wherein The top of the first support plate (5) is provided with a groove, the shape of which is adapted to the shape of the rotating shaft (12).

6. The turn-over jig for liquid crystal panel production according to any one of claims 1 to 5, wherein A connecting rod (13) is provided between the two third links (8).

7. The turn-over jig for liquid crystal panel production according to claim 6, wherein Anti-slip patterns are provided on the connecting rod (13).

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