A vacuum adsorption fixture for a screen bonding machine

Abstract

This utility model provides a vacuum adsorption fixture for a screen bonding machine, belonging to the technical field of vacuum adsorption fixtures. It includes a load-bearing plate, a shelf fixedly mounted on the side wall of the load-bearing plate, a processing table fixedly mounted on the side wall of the load-bearing plate, a support and suction cups above the load-bearing plate, an inner groove formed in the side wall of the load-bearing plate, a sliding groove formed in the inner wall of the inner groove, and a moving component inside the inner groove. The moving component includes a motor, which is fixedly connected to the side wall of the load-bearing plate. It also includes an exhaust component located inside the inner groove. The beneficial effects of this utility model are: through the above components, a shock-absorbing effect can be achieved during the transfer and adsorption of the screen, and a buffer can be provided when the moving speed slows down to a stop to prevent vibration caused by rigid stopping, thus avoiding affecting the adsorption effect.

Description

Technical Field

[0001] This utility model relates to the field of vacuum adsorption fixtures, and more specifically, to a vacuum adsorption fixture for a screen bonding machine. Background Technology

[0002] Vacuum adsorption fixtures in screen lamination machines are key equipment for the precise lamination of display modules. They need to achieve stable adsorption, uniform pressure, and compatibility with complex shapes. Traditional solutions often use porous ceramic plates, but they face many bottlenecks. The adsorption force at the edges of large screens weakens, leading to lamination defects. Irregular structures (such as the under-screen camera area) are prone to air leakage. Particulate contamination and material wear affect yield. Dynamic adjustment is insufficient and there is a lack of redundancy to prevent detachment.

[0003] Currently, vacuum adsorption fixtures for screen laminating machines on the market use suction cups to move the screen from the placement area to the top of the device. However, vibrations can easily occur during this movement, affecting the adsorption effect. In addition, if dust falls on the device or the screen, it can easily affect subsequent vacuum adsorption processing, thus negatively impacting the finished product. How to invent a vacuum adsorption fixture for screen laminating machines to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a vacuum adsorption fixture for a screen bonding machine, which aims to improve the problems of vibration during movement that affects the adsorption effect and dust falling from the device or screen that affects subsequent vacuum adsorption processing.

[0005] This utility model is implemented as follows: This utility model provides a vacuum adsorption fixture for a screen bonding machine, including a load-bearing plate. A shelf is fixedly installed on the side wall of the load-bearing plate, and a processing table is fixedly installed on the side wall of the load-bearing plate. A bracket and a suction cup are also provided above the load-bearing plate. An inner groove is formed in the side wall of the load-bearing plate, and a sliding groove is formed in the inner wall of the inner groove. A moving component is provided inside the inner groove. The moving component includes a motor, which is fixedly connected to the side wall of the load-bearing plate. The fixture also includes: An exhaust assembly, which is located inside the inner groove.

[0006] Preferably, a lead screw is fixedly installed at one end of the motor. The lead screw passes through the inner wall of the load-bearing plate and is rotatably connected to the inner wall of the inner groove. A support column is threadedly connected to the outer wall of the lead screw. A pulley is rotatably connected to one end of the support column. The other end of the support column is fixedly connected to the side wall of the bracket. The pulley is slidably connected to the slide groove. A slider is fixedly installed on the side wall of the support column.

[0007] Preferably, the inner wall of the inner groove is provided with a sliding hole, a limiting post is slidably installed in the sliding hole, a sliding plate is fixedly installed at the end of the limiting post away from the sliding hole, a spring is sleeved on the outer wall of the limiting post, and the two ends of the spring are fixedly connected to the inner wall of the inner groove and the side wall of the sliding plate, respectively, and the sliding plate and the slider are located on the same side.

[0008] Preferably, the exhaust assembly includes a slide rod, the two ends of which are fixedly connected to the inner wall of the inner groove, and an air bladder is slidably connected to the outer wall of the slide rod. The outer wall of the air bladder has air holes, which correspond to the shelf and the processing table respectively.

[0009] Preferably, the outer wall of the slide rod is slidably connected to an extrusion column, one end of the extrusion column is rotatably connected to a pulley, and the other end of the extrusion column is fixedly connected to the side wall of the bracket. The extrusion column and the support column are located on the same side.

[0010] Preferably, a controller is fixedly installed at one end of the bracket, and a hydraulic cylinder is fixedly installed at the other end of the bracket. The end of the hydraulic cylinder away from the bracket is fixedly connected to a suction cup, and the suction cup is located above the shelf and the processing table.

[0011] The beneficial effects of this utility model are: The slider continues to move, but the spring causes the sliding plate to press against it, which in turn presses against the support column. The spring's resistance significantly reduces the instantaneous stress on the screen, effectively preventing damage. This allows the screen's speed to decrease smoothly, reducing vibration and ensuring the suction cup remains firmly attached to the screen for reliable adhesion. As the slider decelerates under the spring's resistance, it moves at a very low speed into the groove inside the sliding plate. The groove's limiting action stops the slider, thus positioning the device and saving time. The extrusion column then contacts the airbag. As the extrusion column continues to move, it compresses the airbag, causing the gas inside to be blown along the vents onto the processing table surface. This removes dust from the processing table and the screens on the shelf, preventing dust from affecting subsequent processing. Attached Figure Description To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1This is a schematic diagram of the main view structure of a vacuum adsorption fixture for a screen bonding machine provided in this embodiment of the utility model; Figure 2 This is a first-view cross-sectional schematic diagram of the vacuum adsorption fixture structure of a screen bonding machine according to an embodiment of the present invention. Figure 3 This is a second-view cross-sectional schematic diagram of the vacuum adsorption fixture structure of a screen bonding machine according to an embodiment of the present invention. Figure 4 This is a front-view structural cross-sectional diagram of a vacuum adsorption fixture for a screen bonding machine provided in this embodiment of the utility model. Figure 5 This is a top-view cross-sectional view of the vacuum adsorption fixture of a screen bonding machine provided by an embodiment of this utility model.

[0013] In the diagram: 1. Load-bearing plate; 2. Shelf; 3. Exhaust assembly; 301. Slide rod; 302. Airbag; 303. Air hole; 304. Extrusion column; 4. Controller; 5. Bracket; 6. Hydraulic cylinder; 7. Suction cup; 8. Inner groove; 9. Moving assembly; 901. Motor; 902. Lead screw; 903. Support column; 904. Pulley; 905. Slider; 906. Slide plate; 907. Limiting post; 908. Spring; 909. Sliding hole; 10. Processing table; 11. Slide groove. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Example, refer to Figures 1-5 A vacuum adsorption fixture for a screen bonding machine includes a load-bearing plate 1, a shelf 2 fixedly mounted on the side wall of the load-bearing plate 1, a processing table 10 fixedly mounted on the side wall of the load-bearing plate 1, a bracket 5 and a suction cup 7 above the load-bearing plate 1, an inner groove 8 formed in the side wall of the load-bearing plate 1, a sliding groove 11 formed in the inner wall of the inner groove 8, and a moving component 9 inside the inner groove 8, the moving component 9 including a motor 901, the motor 901 being fixedly connected to the side wall of the load-bearing plate 1, and further comprising: Exhaust assembly 3, which is located inside the inner groove 8.

[0016] Furthermore, a lead screw 902 is fixedly installed at one end of the motor 901. The lead screw 902 passes through the inner wall of the load-bearing plate 1 and is rotatably connected to the inner wall of the inner groove 8. A support column 903 is threadedly connected to the outer wall of the lead screw 902. A pulley 904 is rotatably connected to one end of the support column 903. The other end of the support column 903 is fixedly connected to the side wall of the bracket 5. The pulley 904 is slidably connected to the slide groove 11. A slider 905 is fixedly installed on the side wall of the support column 903. A sliding hole 909 is opened on the inner wall of the inner groove 8. A limiter is slidably installed in the sliding hole 909. A sliding plate 906 is fixedly installed at the end of the column 907 away from the sliding hole 909. A spring 908 is sleeved on the outer wall of the column 907. The two ends of the spring 908 are fixedly connected to the inner wall of the inner groove 8 and the side wall of the sliding plate 906, respectively. The sliding plate 906 and the slider 905 are located on the same side. A controller 4 is fixedly installed at one end of the bracket 5. A hydraulic cylinder 6 is fixedly installed at the other end of the bracket 5. The end of the hydraulic cylinder 6 away from the bracket 5 is fixedly connected to the suction cup 7. The suction cup 7 is located on the shelf 2 and the processing table 10.

[0017] It should be noted that when the handling begins, the controller 4 controls the hydraulic cylinder 6 below to start running, which causes the suction cup 7 below the hydraulic cylinder 6 to move down until it makes contact with the screen, and then begins to adsorb the screen. Then, the controller 4 controls the hydraulic cylinder 6 to drive the suction cup 7 and the screen to rise to the initial position. At this time, the motor 901 starts and drives the lead screw 902 to rotate, which in turn drives the support column 903 to slide along the slide groove 11 under the action of the pulley 904. Since the support column 903 is fixed with the bracket 5, the support column 903 moves towards the processing table 10, and at the same time, it also drives the suction cup 7 and the screen to move towards the processing table 10.

[0018] When the support column 903 approaches the processing table 10, the slider 905, which moves along with the support column 903, begins to contact the sliding plate 906. Since the support column 903 is still moving, it causes the slider 905 to press against the sliding plate 906. Under the action of the spring 908, the limiting post 907 begins to slide along the sliding hole 909. The slider 905 continues to move, but under the action of the spring 908, the sliding plate 906 begins to press against the slider 905, and subsequently against the support column 903. Under the resistance of the spring 908, the forward speed of the support column 903 begins to slow down. Because the screen is a brittle material with poor impact resistance, rigid deceleration (such as direct mechanical deceleration) is used. (Limited hard stop) The screen will experience an instantaneous impact due to inertia, which may cause it to crack, chip, or scratch. Under the action of spring 908 and sliding plate 906, the kinetic energy is absorbed through elastic deformation, thereby transforming the deceleration process from "instantaneous rigid impact" to "gradual elastic buffering". This significantly reduces the instantaneous stress on the screen and effectively avoids screen damage. At the same time, rigid deceleration will cause the system to vibrate violently, which may create a gap between the suction cup 7 and the screen, destroying the vacuum seal and causing the screen to fall off. Since the squeezing process of spring 908 and sliding plate 906 is continuous and gradual, the speed of the screen can be reduced smoothly, reducing vibration and ensuring that the suction cup 7 always adheres tightly to the screen and maintains reliable adhesion.

[0019] As the slider 905 decelerates under the resistance of the spring 908, it moves at a very low speed into the inner groove of the slide plate 906. The groove's limiting action stops the slider 905, preventing it from moving forward. Under the protection of the motor 901, the lead screw 902 also stops rotating, further stopping the slider 905's forward movement and consequently stopping the suction cup 7 and the screen. This allows the limiting groove to control the slider 905's movement while simultaneously stopping the entire device. The limiting groove effectively controls the movement of the device. The positioning function saves the time required for positioning. Then, under the control of the controller 4, the suction cup 7 begins to move downwards, causing the screen to fall onto the processing table 10. After the screen is placed on the processing table 10, the suction cup 7 returns to its original position. At this time, the motor 901 starts, driving the lead screw 902 to rotate in the opposite direction. Because the front end of the groove has a larger arc than the rear end, the slider 905 cannot move forward, but can return along the same path as the rear end with a smaller arc. This drives the support column 903 and the suction cup 7 to move to the end of the shelf 2, thus facilitating subsequent repetitive work.

[0020] Reference Figures 3-4Furthermore, the exhaust assembly 3 includes a slide rod 301, the two ends of which are fixedly connected to the inner wall of the inner groove 8. An air bladder 302 is slidably connected to the outer wall of the slide rod 301. An air hole 303 is opened on the outer wall of the air bladder 302. The air hole 303 corresponds to the shelf 2 and the processing table 10 respectively. An extrusion column 304 is slidably connected to the outer wall of the slide rod 301. A pulley 904 is rotatably connected to one end of the extrusion column 304. The other end of the extrusion column 304 is fixedly connected to the side wall of the support 5. The extrusion column 304 and the support column 903 are located on the same side.

[0021] It should be noted that: the movement of the support 5 causes the extrusion column 304 and the bottom pulley 904 to slide along the slide groove 11. At this time, the extrusion column 304 begins to contact the airbag 302. As the extrusion column 304 continues to move, it compresses the airbag 302. As the internal space of the airbag 302 shrinks, the gas inside the airbag 302 is blown along the air hole 303 onto the surface of the processing table 10, thereby blowing away the dust on the surface of the processing table 10 and preventing the dust on the processing table 10 from affecting subsequent processing. When the extrusion column 304 moves in the opposite direction, the airbag 302 absorbs the external gas under its own elasticity and returns to its original shape. At this time, the extrusion column 304 continues to move, thereby squeezing the airbag 302 at the other end, causing the gas inside the airbag 302 to blow away the dust above the screen placed on the shelf 2, thereby preventing the dust from affecting the subsequent processing process.

[0022] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum adsorption fixture for a screen bonding machine, comprising a load-bearing plate (1), a shelf (2) fixedly mounted on the side wall of the load-bearing plate (1), a processing table (10) fixedly mounted on the side wall of the load-bearing plate (1), a bracket (5) and a suction cup (7) further provided above the load-bearing plate (1), an inner groove (8) formed on the side wall of the load-bearing plate (1), and a sliding groove (11) formed on the inner wall of the inner groove (8), characterized in that, The inner groove (8) is provided with a moving component (9), which includes a motor (901) and is fixedly connected to the side wall of the load-bearing plate (1). The moving component (9) also includes: Exhaust assembly (3), which is located inside the inner groove (8).

2. The vacuum chucking jig of a screen attaching machine according to claim 1, wherein One end of the motor (901) is fixedly installed with a lead screw (902). The lead screw (902) passes through the inner wall of the load-bearing plate (1) and is rotatably connected to the inner wall of the inner groove (8). The outer wall of the lead screw (902) is threadedly connected with a support column (903). One end of the support column (903) is rotatably connected with a pulley (904). The other end of the support column (903) is fixedly connected to the side wall of the bracket (5). The pulley (904) is slidably connected to the slide groove (11). The side wall of the support column (903) is fixedly installed with a slider (905).

3. The vacuum chucking tool of claim 2, wherein, The inner wall of the inner groove (8) is provided with a sliding hole (909). A limiting post (907) is slidably installed in the sliding hole (909). A sliding plate (906) is fixedly installed at one end of the limiting post (907) away from the sliding hole (909). A spring (908) is sleeved on the outer wall of the limiting post (907). The two ends of the spring (908) are fixedly connected to the inner wall of the inner groove (8) and the side wall of the sliding plate (906), respectively. The sliding plate (906) and the slider (905) are located on the same side.

4. The vacuum chucking tool of claim 1, wherein, The exhaust assembly (3) includes a slide rod (301), the two ends of which are fixedly connected to the inner wall of the inner groove (8). An air bag (302) is slidably connected to the outer wall of the slide rod (301). An air hole (303) is opened on the outer wall of the air bag (302). The air hole (303) corresponds to the shelf (2) and the processing table (10) respectively.

5. The vacuum chucking tool of claim 4, wherein, The outer wall of the slide rod (301) is slidably connected to an extrusion column (304), one end of the extrusion column (304) is rotatably connected to a pulley (904), and the other end of the extrusion column (304) is fixedly connected to the side wall of the bracket (5). The extrusion column (304) and the support column (903) are located on the same side.

6. The vacuum chucking tool of claim 1, wherein, A controller (4) is fixedly installed at one end of the bracket (5), and a hydraulic cylinder (6) is fixedly installed at the other end of the bracket (5). The end of the hydraulic cylinder (6) away from the bracket (5) is fixedly connected to a suction cup (7). The suction cup (7) is located above the shelf (2) and the processing table (10).

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