Thermocompression bonding device for display screen production

Abstract

The utility model discloses a thermocompression bonding device for display screen production, and relates to the technical field of liquid crystal display screen production, the thermocompression bonding device for display screen production comprises a placing plate, the top of the placing plate is provided with a moving plate, the inner side of the moving plate is provided with a suction hole sucker, and the top of the suction hole sucker is fixedly connected with a balancing weight. Limiting rods are arranged on the two sides of the moving plate correspondingly, sliding grooves are formed in the opposite sides of the two limiting rods correspondingly, sliding blocks are rotationally installed at the rear ends of the two sides of the moving plate correspondingly, the two sliding blocks are slidably connected into the two sliding grooves correspondingly, a fixing rod is arranged on the rear side of the moving plate, and clamping blocks are fixedly connected to the two sides of the top of the moving plate correspondingly. According to the thermocompression bonding device for display screen production, two screens are parallel to each other when making contact through the moving plate, and therefore the problem that due to manual pasting, screen bubbles are difficult to discharge, and the screen production quality is affected is solved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display manufacturing technology, specifically to a hot pressing device for display manufacturing. Background Technology

[0002] LCD screens are popular with customers due to their low energy consumption and good display effect, and are widely used in mobile phones, televisions and small home appliances. In the production of LCD screens, two bonding processes are generally required. One bonding is performed between the protective glass and the touch screen, and the other bonding is performed between the display screen and the touch screen.

[0003] In the production process of LCD screens, manual initial bonding and fixation between the display screen and the touch screen is usually required. Then, the bonded screens are placed in a thermoforming device to press them together to improve the production quality of the screens. However, manual alignment and bonding of the screens is not only inefficient, but also prone to problems such as uneven force or poor angle control when the two screens are in contact. Uneven pressure can prevent air from escaping between the screens, forming air bubbles. During thermoforming, the adhesive may not be fully activated, resulting in reduced adhesion and affecting the production quality of the screens. Utility Model Content

[0004] The purpose of this invention is to provide a hot-pressing device for display screen production, so as to solve the problem in the prior art that uneven force on two screens during manual bonding affects the bonding quality of the screens.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot-pressing device for display screen production, comprising a placement plate, a moving plate on the top of the placement plate, a suction cup with an air hole on the inner side of the moving plate, a counterweight fixedly connected to the top of the suction cup, limit rods on both sides of the moving plate, and a sliding groove on the opposite side of each of the two limit rods, sliders rotatably mounted on the rear ends of both sides of the moving plate, and two sliders slidably connected to the two sliding grooves respectively, a fixing rod on the rear side of the moving plate, and locking blocks fixedly connected to both sides of the top of the moving plate, with a rotating rod hinged between each of the two locking blocks and the fixing rod. When placing the touch screen, the moving plate rotates around the hinge point between the moving plate and the locking blocks, so that the first placement groove at the bottom of the moving plate faces the operator, facilitating the fixing and film removal operations of the touch screen.

[0006] Preferably, the rear ends of both limiting rods are fixedly connected to the fixing rods, and a pull rod is provided on one side of each of the two limiting rods. One end of each pull rod passes through the two limiting rods and is slidably connected to them. One end of each pull rod is fixedly connected to the two sliders. A pressing plate is provided at the top of each of the two pull rods. One end of each pressing plate passes through the two pull rods and is slidably connected to them. A first spring is fixedly connected to the inner side of one end of each pressing plate, and the other end of each first spring is fixedly connected to the pull rod.

[0007] Preferably, a limiting block is fixedly connected to the bottom end of each of the two pressing plates, and an inclined block adapted to the limiting block is fixedly connected to both ends of the bottom of each of the two limiting rods. The inclined block limits the limiting block to prevent the screen from sticking together and the movement of the placement moving plate from affecting the pressing work of the display screen.

[0008] Preferably, each of the two card blocks has a slot on one side of its bottom that is compatible with the suction cup. Each of the two card blocks has a limiting plate fixedly connected to its top. Each of the suction cups has a sliding rod fixedly connected to both sides of its top. The tops of the two sliding rods pass through the two limiting plates and are slidably connected to the two limiting plates. When the suction cup is located inside the slot under the pull of the second spring, the suction hole side of the suction cup is flush with the surface of the first placement groove at the bottom of the moving plate.

[0009] Preferably, a limiting plate is fixedly connected to the top of each of the two slide rods, and a second spring is sleeved on the outer side of each of the two slide rods. The two second springs are located between the slide rods and the suction cup of the air hole, and the two ends of the two second springs are fixedly connected to the two slide rods and the suction cup of the air hole, respectively.

[0010] Preferably, a first placement groove is provided at the top of the placement plate and the bottom of the motion plate, and a second placement groove is provided inside the first placement groove at the top of the placement plate. Guide rods are fixedly connected to both sides of the rear end of the bottom of the motion plate, and a through hole adapted to the guide rod is provided at the top of the placement plate. During operation, the screen can be conveniently placed inside the first placement groove at the bottom of the motion plate through the guide rod.

[0011] Preferably, a positioning plate is fixedly connected to the top of the placement plate, the positioning plate passes through the fixing rod and is slidably connected to the fixing rod, a motor is fixedly connected to the rear side of the placement plate, a threaded rod is fixedly connected to the output end of the motor, and the threaded rod passes through the fixing rod and is threadedly connected to the fixing rod.

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

[0013] 1. In this application, when placing the touch screen, the worker can use a pull rod to drive the moving plate to rotate around the hinge point between the moving plate and the card block, so that the first placement slot faces the worker, making it convenient for the worker to place the touch screen. The suction cup of the air hole will stick and fix the touch screen, thereby making it convenient for the worker to peel off the screen film, increasing the worker's work efficiency.

[0014] 2. With the approval of this application, after the screen is placed, the bottom of the moving plate is flipped to face the top of the placing plate, so that when the two screens are in contact and bonded, there will be no angle between the two screens, reducing the formation of air bubbles between the screens and affecting the bonding strength of the screens. At the same time, when the screens are in contact, the suction cup and the counterweight apply pressure to the screen evenly, avoiding the uneven pressure distribution on the screen contact surface caused by manual pressing, which can lead to screen delamination and affect the production quality of the screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the limiting rod structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the suction cup structure of the present invention.

[0018] Figure 4 This is a schematic diagram of the bottom structure of the motion plate of this utility model.

[0019] The following are the labels in the diagram: 1. Placement plate; 2. Motion plate; 3. Suction cup for air intake; 4. Counterweight; 5. Limiting rod; 6. Slide groove; 7. Slider; 8. Pull rod; 9. Pressing plate; 10. First spring; 11. Limiting block; 12. Inclined block; 13. Locking block; 14. Limiting plate; 15. Slide rod; 16. Second spring; 17. Limiting disc; 18. Rotating rod; 19. Fixing rod; 20. Positioning plate; 21. Motor; 22. Threaded rod; 23. First placement groove; 24. Second placement groove; 25. Guide rod. Detailed Implementation

[0020] 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.

[0021] Example: Figure 1 - Figure 4As shown, this utility model provides a technical solution for a hot pressing device for display screen production, including a placement plate 1, a moving plate 2 on the top of the placement plate 1, a suction cup 3 with an air hole on the inner side of the moving plate 2, a counterweight 4 fixedly connected to the top of the suction cup 3, limit rods 5 on both sides of the moving plate 2, and a sliding groove 6 on the opposite side of each of the two limit rods 5, sliders 7 rotatably mounted on the rear ends of both sides of the moving plate 2, and two sliders 7 slidably connected to the two sliding grooves 6 respectively, a fixing rod 19 on the rear side of the moving plate 2, and locking blocks 13 fixedly connected to both sides of the top of the moving plate 2, and a rotating rod 18 hinged between the two locking blocks 13 and the fixing rod 19. When placing the touch screen, the moving plate 2 is rotated around the hinge point between the moving plate 2 and the locking blocks 13, so that the first placement groove 23 at the bottom of the moving plate 2 faces the operator, which facilitates the fixing and film removal operations of the touch screen.

[0022] The rear ends of both limiting rods 5 are fixedly connected to the fixed rod 19. Each of the two limiting rods 5 has a pull rod 8 on one side. One end of each pull rod 8 passes through the two limiting rods 5 and is slidably connected to them. One end of each pull rod 8 is fixedly connected to the two sliders 7. Each of the two pull rods 8 has a pressing plate 9 at the top. One end of each pressing plate 9 passes through the two pull rods 8 and is slidably connected to them. A first spring 10 is fixedly connected to the inner side of one end of each pressing plate 9. The other end of each first spring 10 is fixedly connected to the pull rod 8.

[0023] Both pressing plates 9 are fixedly connected to the bottom end of the limiting block 11, and both ends of the bottom of the two limiting rods 5 are fixedly connected to the inclined block 12 that matches the limiting block 11. The inclined block 12 limits the limiting block 11 to prevent the screen from sticking and the moving plate 2 from moving, which would affect the pressing work of the display screen.

[0024] Both of the two card blocks 13 have slots on opposite sides of their bottoms that are adapted to the suction cup 3. Both card blocks 13 have a fixed limit plate 14 on their tops. Both sides of the top of the suction cup 3 have a sliding rod 15 fixedly connected. The tops of the two sliding rods 15 pass through the two limit plates 14 respectively and are slidably connected to the two limit plates 14. When the suction cup 3 is located inside the slot under the pull of the second spring 16, the suction hole side of the suction cup 3 is flush with the surface of the first placement groove 23 at the bottom of the moving plate 2.

[0025] The top of each of the two slide rods 15 is fixedly connected to a limiting plate 17. A second spring 16 is sleeved on the outside of each of the two slide rods 15. The two second springs 16 are located between the slide rods 15 and the suction cup 3. The two ends of the two second springs 16 are fixedly connected to the two slide rods 15 and the suction cup 3, respectively.

[0026] The top of the placement plate 1 and the bottom of the motion plate 2 are both provided with a first placement groove 23. A second placement groove 24 is provided inside the first placement groove 23 located at the top of the placement plate 1. Guide rods 25 are fixedly connected to both sides of the bottom rear end of the motion plate 2. The top of the placement plate 1 is provided with a through hole that matches the guide rod 25. During operation, the screen can be conveniently placed inside the first placement groove 23 at the bottom of the motion plate 2 through the guide rod 25.

[0027] A positioning plate 20 is fixedly connected to the top of the placement plate 1. The positioning plate 20 passes through the fixing rod 19 and is slidably connected to the fixing rod 19. A motor 21 is fixedly connected to the rear side of the placement plate 1. A threaded rod 22 is fixedly connected to the output end of the motor 21. The threaded rod 22 passes through the fixing rod 19 and is threadedly connected to the fixing rod 19.

[0028] It should be noted that this utility model is a hot-pressing device for display screen manufacturing. During use...

[0029] The worker first presses the pressing plate 9, and the movement of the pressing plate 9 drives the limiting block 11 to move. At this time, the limiting block 11 behind the limiting rod 5 cannot limit the limiting block 11. The worker pulls the pull rod 8 to move it to the front of the device. The slider 7 is rotatably connected to the suction cup 3. The rotating rod 18 is hinged to the locking block 13 fixed on the top of the moving plate 2. At this time, the rear end of the moving plate 2 moves forward, causing the moving plate 2 to flip around the hinge point of the locking block 13 and the rotating rod 18. When the limiting rod 5 moves to the front side of the inner side of the slide groove 6, the limiting block 11 is located in front of the inclined block 12 in front of the limiting rod 5. The moving plate 2 completes the flip. When the moving plate 2 flips, the suction cup 3 is pulled into the slot of the locking block 13 under the elastic force of the second spring 16. At this time, the bottom surface of the suction cup 3 and the surface of the first placement groove 23 are on the same horizontal line.

[0030] At this time, the bottom of the motion plate 2 is tilted and facing the worker. The inclined block 12 limits the limit block 11, so that the motion plate 2 moves when the worker places the touch screen. Then the worker can place the touch screen along the guide rod 25 into the first placement slot 23 opened in the motion plate 2, and then place the LCD screen into the second placement slot 24.

[0031] The suction cup 3 works by using an air pump to draw air from its interior, thereby securing the object at the suction port. The driving mechanism of the suction cup 3 is a mature existing technology and will not be described in detail here. The suction cup 3 then adheres to the touchscreen placed on the motion plate 2. The worker then peels off the protective film from the touchscreen, presses the pressing plate 9, and pushes the lever 8 to the rear of the limit rod 5. At this point, the motion plate 2 flips back to its original position. The touchscreen will not fall off due to the suction of the suction cup 3. The bottom of the motion plate 2 is now aligned with the top of the placement plate 1, preventing an angle between the two screens and ensuring proper airflow, thus enhancing the adhesion between the screens. Okay, let the two suction cups 3 move downwards under their own weight and the weight of the counterweight 4. At this time, the suction cups 3 pull the second spring 16, and the contact screen at the bottom of the suction cups 3 protrudes from the first placement groove 23. Then, start the motor 21. The motor 21 drives the threaded rod 22 to rotate, causing the fixing rod 19 to move downwards, so that the touch screen moves downwards and makes contact with the LCD screen first. The fixing rod 19 continues to descend, so that the limiting rod 5 is attached to the top of the placement plate 1. At this time, the touch screen is pressed onto the LCD screen and bonded to the LCD screen under the gravity of the suction cups 3 and the counterweight 4, completing the screen bonding work. Then, the motor 21 reverses, and the worker can place the pressed screen into the subsequent heating and vacuuming device to complete the production of the display screen.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hot-pressing device for display screen production, comprising a placement plate (1), characterized in that: The top of the placement plate (1) is provided with a moving plate (2), and the inner side of the moving plate (2) is provided with a suction cup (3). A counterweight (4) is fixedly connected to the top of the suction cup (3). Limiting rods (5) are provided on both sides of the moving plate (2). A sliding groove (6) is opened on the opposite side of the two limiting rods (5). Sliding blocks (7) are rotatably installed on both rear ends of the moving plate (2). The two sliding blocks (7) are slidably connected to the two sliding grooves (6). A fixing rod (19) is provided on the rear side of the moving plate (2). A locking block (13) is fixedly connected to both sides of the top of the moving plate (2). A rotating rod (18) is hinged between the two locking blocks (13) and the fixing rod (19).

2. The hot pressing device for display screen production according to claim 1, characterized in that: The rear ends of both limiting rods (5) are fixedly connected to the fixing rod (19). Each of the two limiting rods (5) is provided with a pull rod (8) on one side. One end of each pull rod (8) passes through the two limiting rods (5) and is slidably connected to the two limiting rods (5). One end of each pull rod (8) is fixedly connected to the two sliders (7). Each of the two pull rods (8) is provided with a pressing plate (9) at the top. One end of each pressing plate (9) passes through the two pull rods (8) and is slidably connected to the two pull rods (8). A first spring (10) is fixedly connected to the inner side of one end of each pressing plate (9). The other end of each first spring (10) is fixedly connected to the pull rod (8).

3. The hot pressing device for display screen production according to claim 2, characterized in that: Both pressing plates (9) are fixedly connected to the bottom end of the limiting block (11), and both ends of the bottom of the two limiting rods (5) are fixedly connected to the inclined block (12) that matches the limiting block (11).

4. The hot pressing device for display screen production according to claim 1, characterized in that: Both of the two card blocks (13) have slots on opposite sides of their bottoms that are compatible with the suction cup (3). Both of the card blocks (13) have a limiting plate (14) fixedly connected to their tops. Both sides of the suction cup (3) have a sliding rod (15) fixedly connected to their tops. The tops of the two sliding rods (15) pass through the two limiting plates (14) respectively and are slidably connected to the two limiting plates (14).

5. The hot pressing device for display screen production according to claim 4, characterized in that: The top of each of the two slide rods (15) is fixedly connected to a limiting plate (17), and a second spring (16) is sleeved on the outside of each of the two slide rods (15). The two second springs (16) are located between the slide rod (15) and the suction cup (3). The two ends of the two second springs (16) are fixedly connected to the two slide rods (15) and the suction cup (3) respectively.

6. The hot pressing device for display screen production according to claim 1, characterized in that: The top of the placement plate (1) and the bottom of the motion plate (2) are provided with a first placement groove (23). A second placement groove (24) is provided inside the first placement groove (23) at the top of the placement plate (1). Guide rods (25) are fixedly connected to both sides of the bottom rear end of the motion plate (2). A through hole adapted to the guide rod (25) is provided at the top of the placement plate (1).

7. The hot pressing device for display screen production according to claim 1, characterized in that: A positioning plate (20) is fixedly connected to the top of the placement plate (1). The positioning plate (20) passes through the fixing rod (19) and is slidably connected to the fixing rod (19). A motor (21) is fixedly connected to the rear side of the placement plate (1). A threaded rod (22) is fixedly connected to the output end of the motor (21). The threaded rod (22) passes through the fixing rod (19) and is threadedly connected to the fixing rod (19).

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