Vacuum laminating device for medium-large frameless cover plate

Abstract

The utility model discloses a vacuum laminating device for medium and large frameless cover plates, which is characterized in that an upper vacuum adsorption plate is arranged in an upper cavity, the upper cavity is connected with a first driving device, and the upper vacuum adsorption plate is connected with a second driving device; the top of the cover plate supporting seat is transversely and slidably matched with two first mounting plates, the top of the cover plate supporting seat is longitudinally and slidably matched with two second mounting plates, the first mounting plates and the second mounting plates are connected with L-shaped supports respectively, the supports are connected with vacuum suction heads, the first mounting plates are connected with first driving units, and the second mounting plates are connected with second driving units. The second mounting plate is connected with a second driving unit for driving the second mounting plate to longitudinally move; the cover plate supporting seat is connected with a third driving device for driving the cover plate supporting seat to transversely move; a lower vacuum adsorption plate is arranged in the lower cavity, and the lower cavity is connected with a fourth driving device for driving the lower cavity to move transversely and further connected with a first vacuum pump for vacuumizing the interior of the lower cavity. And dust or small particles cannot be attached to the bottom of the cover plate, so that the yield of products after the cover plate is attached to the LCD can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to panel lamination, and particularly relates to a vacuum lamination device for medium and large-sized borderless cover plates. Background Art

[0002] With the development of society and the improvement of living standards, people's pursuit of the quality of life is also constantly increasing. With the diversification and intelligence of display information, in order to obtain a better visual experience, people have higher and higher requirements for the screen-to-body ratio of display terminals. There are more and more narrow-border and borderless display screens in the market.

[0003] The existing cover plate vacuum lamination process is as follows: after the cover plate (collectively referred to as TP / CG, etc.) is attached to the OCA film (optical adhesive film), it is then laminated with the LCD (liquid crystal display screen) in a vacuum environment. Specifically: after the OCA film is attached to the bottom of the cover plate and the protective film on the surface of the OCA is torn off, the cover plate is placed on the cover plate support seat of the lamination device, and the cover plate is supported by a plurality of ramp jigs on the top of the cover plate support seat. Then, the cover plate support seat moves below the upper vacuum adsorption plate, and the upper vacuum adsorption plate moves down to adsorb and fix the cover plate and then moves up. After that, the LCD is placed below the lower vacuum adsorption plate on the lamination device and then moves below the upper vacuum adsorption plate. The upper vacuum adsorption plate moves down to drive the cover plate to move down, realizing the lamination of the cover plate and the LCD. The upper vacuum adsorption plate and the lower vacuum adsorption plate are in a sealed vacuum chamber environment; although the lamination between the cover plate and the LCD can be achieved, since the cover plate is supported by the ramp jigs (the surface of the ramp jigs in contact with the bottom of the cover plate is the lamination surface), dust or small particles will adhere to the bottom of the cover plate, resulting in a relatively low yield rate of the laminated product. Summary of the Utility Model

[0004] In order to overcome the existing technical defects, the purpose of the utility model is to provide a vacuum lamination device for medium and large-sized borderless cover plates to solve the above technical problems.

[0005] The technical solution adopted by the utility model to solve the technical problems is as follows:

[0006] According to one aspect of the utility model, a vacuum lamination device for medium and large-sized borderless cover plates is designed, including:

[0007] An upper cavity, inside which an upper vacuum adsorption plate is arranged. The upper cavity is connected with a first driving device for driving its lifting, and the upper vacuum adsorption plate is connected with a second driving device for driving its lifting;

[0008] The cover plate support seat is arranged on the right side of the upper cavity. Two first mounting plates are horizontally slidably fitted on the top of the cover plate support seat, and two second mounting plates are vertically slidably fitted. L-shaped brackets are respectively connected to the first mounting plates and the second mounting plates. A vacuum chuck with the adsorption end facing down is connected to the brackets. The first mounting plate is connected with a first driving unit for driving it to move horizontally, the second mounting plate is connected with a second driving unit for driving it to move vertically, and the cover plate support seat is connected with a third driving device for driving it to move horizontally.

[0009] The lower cavity is arranged on the left side of the upper cavity. A lower vacuum adsorption plate is arranged inside the lower cavity. The lower cavity is connected with a fourth driving device for driving it to move horizontally, and is also connected with a first vacuum pump for evacuating the inside thereof.

[0010] In order to better solve the above technical defects, the present utility model also has a better technical solution:

[0011] In some embodiments, a first CCD camera for photographing the bottom of the upper vacuum adsorption plate is connected to the left side of the cover plate support seat. A second CCD camera for photographing the top of the lower vacuum adsorption plate is arranged above the right side of the lower cavity. The lower cavity is mounted on a UVW alignment platform. The fourth driving device is drivingly connected to the UVW alignment platform. The first CCD camera, the second CCD camera, and the UVW alignment platform are all electrically connected to a control device.

[0012] In some embodiments, the first driving device and the second driving device are fixedly connected to a first support frame, and the second CCD camera is mounted on a second support frame.

[0013] In some embodiments, a first guide rail is horizontally arranged below the first support frame. The cover plate support seat and the UVW alignment platform are respectively horizontally slidably fitted with the first guide rail through sliders.

[0014] In some embodiments, the upper vacuum adsorption plate and the lower vacuum adsorption plate are connected to a second vacuum pump through a vacuum pipeline.

[0015] In some embodiments, the first driving unit and the second driving unit are cylinders or electric cylinders or linear slides or electric push rods.

[0016] In some embodiments, a driving mechanism is connected to the first mounting plate on the left side of the cover plate support seat. The driving mechanism includes a connecting plate, a driving synchronous pulley, a driven synchronous pulley, a synchronous belt, and a driving motor. The upper end of the connecting plate is connected to the first mounting plate, and the lower end passes through a horizontal strip hole on the cover plate support seat and is connected to the synchronous belt. The synchronous belt is connected to the driving synchronous pulley and the driven synchronous pulley. The driving motor is connected to the driving synchronous pulley to drive the synchronous belt to rotate, and the rotation of the synchronous belt can drive the connecting plate to move horizontally.

[0017] In some embodiments, the first CCD camera is connected to a first longitudinal driving unit for driving its longitudinal movement, and the second CCD camera is connected to a second longitudinal driving unit for driving its longitudinal movement.

[0018] The technical effect is as follows: In the technical solution, the way of placing the cover plate on the cover plate support seat is as follows: The manipulator grabs the cover plate and moves the cover plate above the cover plate support seat. At this time, the height of the cover plate is lower than the height of the vacuum suction head. The first driving unit drives the first mounting plate to drive the upper bracket and the vacuum suction head thereon to move above the cover plate, and the second driving unit drives the second mounting plate to drive the upper bracket and the vacuum suction head thereon to move above the cover plate. Then, the manipulator drives the cover plate to move upward to contact the vacuum suction head, and the cover plate is adsorbed and fixed by the vacuum suction head. Then, the manipulator releases the cover plate, realizing placing the cover plate on the cover plate support seat. The vacuum suction head adsorbs on the top surface of the cover plate and does not contact the fitting surface at the bottom of the cover plate. Compared with the existing method of supporting the cover plate by contacting the bottom surface of the cover plate with multiple ramp jigs, it will not cause dust or small particles to adhere to the bottom of the cover plate, thereby improving the yield rate of the product after the cover plate is attached to the LCD. When the lower cavity moves below the upper cavity and the upper cavity moves downward to contact the lower cavity, a sealed chamber can be formed. The first vacuum pump can evacuate the sealed chamber. The upper vacuum adsorption plate and the lower vacuum adsorption plate use the second vacuum pump to evacuate and adsorb and fix the cover plate and the LCD. Instead of using the first vacuum pump to evacuate, it is to reduce the interference between vacuums and reduce the probability of generating bubbles when the cover plate and the LCD are attached, and can improve the qualification rate of the attached product. The first CCD camera and the second CCD camera can respectively take pictures of the cover plate and the LCD and upload them to the control device. The control device analyzes the position information of the two and sends the adjustment information to the UVW alignment platform. The LCD position can be adjusted by the UVW alignment platform and then attached to the cover plate, so as to ensure the precise attachment of the cover plate and the LCD. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a medium and large-sized borderless cover plate vacuum bonding device provided by an embodiment of the present invention;

[0020] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0021] Figure 3 It is a schematic structural diagram of the first driving device, the second driving device and the first support frame;

[0022] Figure 4 It is a schematic structural diagram of the cover plate support seat;

[0023] Reference numerals:

[0024] 1. Upper cavity; 11. First driving device; 111. Motor; 112. Reducer; 113. Lead screw; 114. Nut; 115. First driving frame; 116. First driving rod; 2. Cover plate support seat; 20. Third driving device; 21. First mounting plate; 22. Second mounting plate; 23. Bracket; 24. Vacuum suction head; 25. First driving unit; 26. Second driving unit; 3. Lower cavity; 31. Fourth driving device; 4. Second driving device; 41. Linear slide; 42. Second driving frame; 43. Second driving rod; 5. First support frame; 6. Lower vacuum adsorption plate; 7. First CCD camera; 8. Second CCD camera; 81. Second support frame. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0026] In the description of the present utility model, it should be understood that with regard to the orientation descriptions, such as upper, lower, front, back, left, right, etc., the orientation or positional relationships indicated are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installation, connection, and fixed connection should be understood in a broad sense, and those skilled in the technical field can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0028] Refer to Figures 1 to 4 As shown, a medium and large-sized borderless cover plate vacuum bonding device provided by the present utility model includes: an upper cavity 1, a cover plate support seat 2, and a lower cavity 3.

[0029] Inside the upper cavity 1, there is an upper vacuum adsorption plate. The upper cavity 1 is connected to a first driving device 11 that drives its lifting. The upper vacuum adsorption plate is connected to a second driving device 4 that drives its lifting. Both the first driving device 11 and the second driving device 4 are fixedly connected to the first support frame 5. Among them, the first driving device 11 includes a motor 111, a speed reducer 112, a lead screw 113, a nut 114, and a first driving frame 115. The motor 111 is a servo motor or a stepper motor. The driving end of the motor 111 is connected to the input end of the speed reducer 112. The speed reducer 112 is fixedly connected to the top of the first support frame 5. The output end of the speed reducer 112 is connected to the lead screw 113. The lead screw 113 is in threaded cooperation with the nut 114. The nut 114 is fixedly connected to the first driving frame 115. The lower end of the first driving frame 115 is connected to a plurality of first driving rods 116. The lower ends of the first driving rods 116 are fixedly connected to the upper cavity 1. The motor 111 provides power and drives the lead screw 113 to rotate through the speed reducer 112. The rotation of the lead screw 113 drives the nut 114 to drive the first driving frame 115 to rise or fall. The rise or fall of the first driving frame 115 drives the first driving rods 116 to drive the upper cavity 1 to rise or fall, realizing the lifting function of the upper cavity 1. In other embodiments, the first driving device 11 can also be a cylinder or a hydraulic cylinder, etc. The front and rear ends of the first driving frame 115 are respectively in vertical sliding cooperation with the first support frame 5 through guide rails and sliders. The second driving device 4 includes a linear slide table 41 and a second driving frame 42. The linear slide table 41 is vertically fixedly connected to the first support frame 5. The second driving frame 42 is arranged below the first driving frame 115 and is connected to the driving end of the linear slide table 41. The second driving frame 42 is connected to a plurality of second connecting rods 43. The second connecting rods 43 extend into the upper cavity 1 and are connected to the upper vacuum adsorption plate. A vacuum channel is provided on the second connecting rods 43. The vacuum suction heads installed on the upper vacuum adsorption plate are connected to the second connecting rods 43, and the ventilation holes on the vacuum suction heads are communicated with the vacuum channels on the second connecting rods 43. The upper ends of the second connecting rods 43 are connected to vacuum connectors that are communicated with the vacuum channels inside them. The vacuum connectors are connected to a second vacuum pump through vacuum pipes.

[0030] The cover plate support base 2 is arranged on the right side of the upper cavity 1. The cover plate support base 2 is connected with a third driving device 20 for driving it to move horizontally. The third driving device 20 is a linear slide. Two first mounting plates 21 are horizontally slidably matched with the top of the cover plate support base 2, and two second mounting plates 22 are longitudinally slidably matched with it. Among them, the two first mounting plates 21 are horizontally slidably matched with the cover plate support base 2 through guide rails and sliders, and the two second mounting plates 22 are longitudinally slidably matched with the cover plate support base 2 through guide rails and sliders. One or two or three or more brackets 23 are respectively connected to the first mounting plate 21 and the second mounting plate 22. In this embodiment, it is preferably that two brackets 23 are respectively connected to the first mounting plate 21 and the second mounting plate 22. The bracket 23 is L-shaped, and a vacuum suction head 24 is connected to the bracket 23. The adsorption end of the vacuum suction head 24 faces downward. The vacuum suction head 24 is connected to the second vacuum pump through a vacuum pipeline. Two first mounting plates 21 are respectively connected with a first driving unit 25 for driving them to move horizontally. The first driving unit 25 is a cylinder or an electric cylinder or a linear slide or an electric push rod or other driving mechanisms. In this embodiment, it is preferably that the first driving unit 25 for driving the right first mounting plate 21 among the two first mounting plates 21 to move horizontally is a cylinder, and the first driving unit 25 for driving the left first mounting plate 21 to move horizontally is a driving mechanism. The driving mechanism includes a connecting plate 251, a driving synchronous pulley, a driven synchronous pulley, a synchronous belt and a driving motor. The upper end of the connecting plate 251 is fixedly connected to the left first mounting plate 21. The lower end of the connecting plate 251 passes through the horizontal strip-shaped hole on the cover plate support base 2 and is fixedly connected to the synchronous belt. There is a horizontally arranged part at the rear side of the synchronous belt. The synchronous belt is connected to the driving synchronous pulley and the driven synchronous pulley. The driving synchronous pulley and the driven synchronous pulley are rotatably connected inside the cover plate support base 2. The driving motor is a servo motor or a stepping motor. The driving motor is connected to the driving synchronous pulley to drive the driving synchronous pulley to rotate and drive the synchronous belt to rotate. The rotation of the synchronous belt can drive the connecting plate 251 to move horizontally, and the horizontal movement of the connecting plate 251 drives the left first mounting plate 21 to move horizontally. The second mounting plate 22 is connected with a second driving unit 26 for driving it to move longitudinally. The second driving unit 26 is a cylinder or an electric cylinder or a linear slide or an electric push rod or other driving mechanisms. In this embodiment, it is preferably that the second driving unit 26 for driving the front second mounting plate 22 among the two second mounting plates 22 to move horizontally is a cylinder, and the second driving unit 26 for driving the rear second mounting plate 22 to move horizontally is a linear slide.

[0031] The lower cavity 3 is arranged on the left side of the upper cavity 1. The lower cavity 3 is connected with a first vacuum pump for evacuating the inside of it. A lower vacuum adsorption plate 6 is arranged inside the lower cavity 3. The vacuum pumping holes on the lower vacuum adsorption plate 6 are connected to the second vacuum pump through a vacuum pipeline. The lower cavity 3 is connected with a fourth driving device 31 for driving it to move horizontally. The fourth driving device 31 is a linear slide.

[0032] The left side of the cover support seat 2 is connected to a first CCD camera 7 for taking pictures of the bottom of the upper vacuum adsorption plate, and the upper right side of the lower cavity 3 is provided with a second CCD camera 8 for taking pictures of the top of the lower vacuum adsorption plate 6. The second CCD camera 8 is installed on the second support frame 81, and the lower cavity 3 is installed on the UVW alignment platform. The fourth drive device 31 is connected to the UVW alignment platform. The fourth drive device 31 drives the UVW alignment platform to move horizontally, which can be linked to the horizontal movement of the lower vacuum adsorption plate 6. The first CCD camera 7, the second CCD camera 8, and the UVW alignment platform are all electrically connected to the control device. One or two first CCD cameras 7 are provided, and the first CCD camera 7 is connected to a first longitudinal drive unit that drives its longitudinal movement, and the first longitudinal drive unit is a linear slide. One or two second CCD cameras 8 are provided, and the second CCD camera 8 is connected to a second longitudinal drive unit that drives its longitudinal movement, and the second longitudinal drive unit is a linear slide.

[0033] The control device is a device with control functions such as a PLC controller or an industrial computer. All driving components in this technology are electrically connected to the control device and their actions are controlled by the control device.

[0034] A first guide rail is transversely arranged below the first support frame 5 , and the cover plate support seat 2 and the UVW alignment platform are respectively slidably matched with the first guide rail transversely through sliders.

[0035] The fitting principle of the medium and large-sized borderless cover plate vacuum fitting device is as follows: In the initial state, the cover plate support base 2 is located below the right side of the upper cavity 1. The cover plate is grabbed by a manipulator and moved above the cover plate support base 2. At this time, the height of the cover plate is lower than that of the vacuum suction head 24. The first driving unit 25 drives the first mounting plate 21 to drive its upper bracket 23 and the vacuum suction head 24 to move above the cover plate. The second driving unit 26 drives the second mounting plate 22 to drive its upper bracket 23 and the vacuum suction head 24 to move above the cover plate. Then, the manipulator drives the cover plate to move upward to contact the surrounding vacuum suction heads 24, and the cover plate is adsorbed and fixed by the vacuum suction heads 24 on the bracket 23. Then the manipulator releases the cover plate, and the cover plate is placed on the cover plate support base 2. Then, the third driving device 20 drives the cover plate support base 2 to move below the upper cavity 1. The second driving device 4 drives the upper vacuum adsorption plate to move downward to contact and adsorb and fix the cover plate. Then, the vacuum suction heads 24 on the bracket 23 release the adsorption and fixation of the cover plate. The first driving unit 25 drives the first mounting frame to reset. The second driving unit 26 drives the second mounting frame to reset. The second driving device 4 drives the upper vacuum adsorption plate to move upward a set distance or reset. Then, the third driving device 20 drives the cover plate support base 2 to move right a set distance, so that the first CCD camera 7 moves below the upper vacuum adsorption plate. The first CCD camera 7 takes a picture of the bottom of the cover plate and uploads it to the control device. Then, the third driving device 20 drives the cover plate support base 2 to move right and reset. Then, the fourth driving device 31 drives the lower cavity 3 to move below the second CCD camera 8 (the lower vacuum adsorption plate 6 has adsorbed and fixed the LCD before the lower cavity 3 moves). The second CCD camera 8 takes a picture of the LCD and uploads it to the control device. The control device analyzes the position information of the two (the cover plate and the LCD), and adjusts the position of the LCD through the UVW alignment platform. Then, the fourth driving device 31 drives the lower cavity 3 to move below the upper cavity 1. Then, the first driving device 11 drives the upper cavity 1 to move downward to contact the lower cavity 3 to form a sealed chamber. After the first vacuum pump starts to evacuate the sealed chamber, the second driving device 4 drives the upper vacuum adsorption plate to drive the cover plate to move downward, so that the cover plate contacts and fits with the LCD. After the fitting is completed, the upper vacuum adsorption plate releases the adsorption and fixation of the cover plate. The first driving device 11 drives the upper cavity 1 to move upward and reset. The second driving device 4 drives the upper vacuum adsorption plate to move upward and reset. The fourth driving device 31 drives the lower cavity 3 to move left and reset. At this time, the fitted product is on the lower vacuum adsorption plate 6, and it can be taken away by the manipulator.

[0036] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A medium-to-large frameless cover vacuum laminating device, characterized in that: include: An upper cavity body, in which an upper vacuum adsorption plate is arranged, the upper cavity body is connected to a first driving device for driving the upper cavity body to rise and fall, and the upper vacuum adsorption plate is connected to a second driving device for driving the upper cavity body to rise and fall; A cover plate support seat is arranged on the right side of the upper cavity, the top of the cover plate support seat is equipped with two first mounting plates for horizontal sliding, and two second mounting plates for vertical sliding, the first mounting plate and the second mounting plate are respectively connected with L-shaped brackets, the brackets are connected with vacuum suction heads with adsorption ends facing downwards, the first mounting plate is connected with a first driving unit for driving its horizontal movement, the second mounting plate is connected with a second driving unit for driving its vertical movement, and the cover plate support seat is connected with a third driving device for driving its horizontal movement; The lower cavity is arranged on the left side of the upper cavity. A lower vacuum adsorption plate is arranged inside the lower cavity. The lower cavity is connected to a fourth driving device for driving it to move laterally, and is also connected to a first vacuum pump for evacuating the interior of the lower cavity.

2. A medium-to-large frameless cover vacuum laminating device according to claim 1, characterized in that: A first CCD camera for taking pictures of the bottom of the upper vacuum adsorption plate is connected to the left side of the cover plate support seat, and a second CCD camera for taking pictures of the top of the lower vacuum adsorption plate is arranged on the upper right side of the lower cavity. The lower cavity is installed on the UVW alignment platform, and the fourth driving device is drivingly connected to the UVW alignment platform. The first CCD camera, the second CCD camera, and the UVW alignment platform are all electrically connected to the control device.

3. A medium-to-large frameless cover vacuum laminating device according to claim 2, characterized in that: The first driving device and the second driving device are fixedly connected to the first supporting frame, and the second CCD camera is installed on the second supporting frame.

4. A medium-to-large frameless cover vacuum laminating device according to claim 3, characterized in that: A first guide rail is transversely arranged below the first support frame, and the cover plate support seat and the UVW alignment platform are respectively transversely slidably matched with the first guide rail through sliders.

5. A medium-to-large frameless cover vacuum laminating device according to claim 1, characterized in that: The upper vacuum adsorption plate and the lower vacuum adsorption plate are connected to the second vacuum pump through a vacuum pipeline.

6. A medium-to-large-sized frameless cover vacuum laminating device according to claim 1, characterized in that: The first driving unit and the second driving unit are pneumatic cylinders, electric cylinders, linear slides, or electric push rods.

7. A medium-to-large frameless cover vacuum laminating device according to claim 1, characterized in that: The first mounting plate on the left side of the cover support seat is connected to a driving mechanism, and the driving mechanism includes a connecting plate, an active synchronous wheel, a driven synchronous wheel, a synchronous belt and a driving motor. The upper end of the connecting plate is connected to the first mounting plate, and the lower end passes through the transverse strip hole on the cover support seat and is connected to the synchronous belt. The synchronous belt is connected to the active synchronous wheel and the driven synchronous wheel. The driving motor is connected to the active synchronous wheel to drive the synchronous belt to rotate. The rotation of the synchronous belt can drive the connecting plate to move laterally.

8. The medium-to-large frameless cover vacuum laminating device according to claim 2, characterized in that: The first CCD camera is connected to a first longitudinal driving unit that drives the first CCD camera to move longitudinally, and the second CCD camera is connected to a second longitudinal driving unit that drives the first CCD camera to move longitudinally.

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