Automatic pressing device for pasting gum on liquid crystal display screen

Abstract

The utility model discloses an automatic pressing device for pasting gum on a liquid crystal display screen, and belongs to the technical field of automatic pressing equipment. Comprising a supporting frame used for storing, supporting and machining parts and devices, a press-fit device used for conducting press-fit operation on products, a workbench used for placing a liquid crystal display screen to facilitate press-fit operation and a press-fit panel used for conducting press-fit on the liquid crystal display screen, and a control operation device used for sensing and controlling is arranged on the supporting frame. A lower sliding rail used for the workbench to slide front and back is arranged in the supporting frame, the press-fit panel is arranged at the lower end of the press-fit mechanism, and the workbench is arranged at the upper end of the moving mechanism. According to the device, back glue pasting and pressing operation can be automatically carried out on the liquid crystal display screen, the situation that pressing force application by personnel is not uniform, and omission is prone to occurring is avoided, so that back glue is tightly attached to a cover plate of the liquid crystal display screen, the production efficiency is improved, and the labor force of the personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic pressing equipment, and particularly relates to an automatic pressing device for pasting back glue on a liquid crystal display screen. Background Technique

[0002] Generally speaking, the working process of pasting and pressing back glue on a liquid crystal display screen can be divided into the following steps: Design stage: Before actual production, it is necessary to conduct detailed design and planning of the product to determine parameters such as the size, shape, and performance of the product. This stage is usually completed by the design team. Making the backplane: According to the design drawings, make the backplane of the liquid crystal display. In this process, some special processes and technologies may be involved, such as metal sputtering, chemical vapor deposition (CVD), etc. Producing the back glue: This is one of the key steps in manufacturing the liquid crystal display screen. The quality and performance of the back glue directly affect the display effect. During the production process, factors such as the material ratio and curing conditions need to be strictly controlled to ensure the quality of the back glue. Attaching the backplane: Paste the backplane onto the glass substrate. This step requires accurate positioning of the backplane and prevention of adhesion between the back glue and the glass surface. High-temperature and high-pressure curing: In order to ensure that the back glue adheres firmly to the glass substrate, it also needs to be treated with high temperature and high pressure. This process can bond the molecular bonds in the back glue and improve its adhesion. Cutting and detection: Finally, cut and detect the liquid crystal display screen with the back glue pasted to ensure that it meets the design requirements and specifications.

[0003] Currently, liquid crystal TVs have been widely used in our daily lives. The assembly of the liquid crystal display screen in a liquid crystal TV generally uses back glue pasting and manually presses the four sides of the back glue by hand to make it stick firmly. However, when manually pressing, the force application is uneven, there are easily missed places, and it is impossible to make the back glue fit tightly with the cover plate. It is also unclear how much force the back glue receives, and the operator is prone to fatigue. Therefore, this device provides an automatic pressing device for pasting back glue on a liquid crystal display screen. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic pressing device for pasting back glue on a liquid crystal display screen to solve the above-mentioned technical problems in view of the deficiencies of the prior art.

[0005] The embodiments of the present utility model adopt the following technical solutions: It includes a support frame for storing, supporting, and processing parts and devices, a pressing device for performing pressing operations on products, a workbench for placing a liquid crystal display screen to facilitate pressing operations, and a pressing panel for pressing the liquid crystal display screen, and the pressing panel is arranged in a matching manner with the liquid crystal display screen. The pressing device includes a pressing mechanism and a moving mechanism. A control operation device for sensing and controlling is arranged on the support frame. Two lower slide rails for the workbench to slide back and forth are arranged inside the support frame 1. The support frame is horizontally fixed on the work placement table. The pressing panel is arranged at the lower end of the pressing mechanism. The workbench is arranged at the upper end of the moving mechanism. The pressing mechanism can drive the pressing panel to move downward for pressing. The moving mechanism can drive the workbench to move back and forth.

[0006] Further, the pressing mechanism includes a fixing plate, a pressing cylinder, and a support panel. The fixing plate is arranged at the upper part of the support frame. The pressing cylinder is arranged on the fixing plate and its telescopic end is arranged downward. The support panel is arranged on the telescopic end of the pressing cylinder.

[0007] Further, the moving mechanism includes a moving cylinder and a moving support. The moving cylinder is arranged at the lower part inside the support frame. The moving support is arranged on the telescopic end of the moving cylinder. The telescopic end of the moving cylinder faces forward. The moving cylinder is arranged horizontally.

[0008] Further, a baffle is arranged on the workbench, and the baffle forms a fence extending from one side of the workbench to the other side.

[0009] Further, the control operation device includes an operation button, an emergency button, and a pressure valve. The operation button is arranged at the lower part of the support frame. The emergency button is arranged at the upper part of the support frame. The pressure valve is arranged inside the support frame and its display surface is located outside.

[0010] Further, a groove adapted to the liquid crystal display screen to be processed is arranged on the workbench, and the groove is in a corresponding state with the pressing panel.

[0011] Further, two upper slide rails for the pressing panel to slide up and down are arranged inside the support frame.

[0012] Further, both the workbench and the pressing panel are detachably arranged.

[0013] The above at least one technical solution adopted by the embodiments of the present utility model can achieve the following beneficial effects:

[0014] In the present utility model, when an operator performs the operation of pasting the back glue and pressing on the liquid crystal display screen, first, the moving cylinder runs to drive the moving bracket on the telescopic end to move outward, thereby driving the workbench to extend. Both of the lower slide rails are in a matching state. After the workbench extends, the liquid crystal display screen to be processed is placed in the matching groove on the workbench. At this time, the operator presses the operation button, and the workbench is driven back to its original position by the operation of the moving cylinder. At this time, the liquid crystal display screen and the pressing panel are in a corresponding state. The pressing cylinder runs to drive the bracket panel on its telescopic end to move downward, thereby driving the pressing panel to move toward the liquid crystal display screen direction, so as to automatically realize the pressing operation. After the operation of pasting the back glue and pressing on the liquid crystal display screen is completed, the workbench is extended by the operation of the moving cylinder. Then, the processed liquid crystal display screen is taken out, and the liquid crystal display screen to be processed is placed again to perform the repeated operation of pressing and processing. This avoids uneven pressing force applied by personnel and places where it is easy to miss, so that the back glue and the liquid crystal display screen cover are closely adhered, thereby improving production efficiency and reducing labor force of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 is the front view of the present utility model;

[0017] Figure 2 is the rear view of the present utility model;

[0018] Figure 3 is the three-dimensional structure schematic diagram of the workbench in the present utility model;

[0019] Figure 4 is the three-dimensional structure schematic diagram of the pressing panel in the present utility model;

[0020] Figure 5 is the three-dimensional structure schematic diagram of the moving mechanism in the present utility model.

[0021] REFERENCE MARKS

[0022] Support frame 1, lower slide rail 11, upper slide rail 12, pressing device 2, pressing mechanism 21, fixing plate 211, pressing cylinder 212, bracket panel 213, moving mechanism 22, moving cylinder 221, moving bracket 222, workbench 3, baffle 31, pressing panel 4, control operation device 5, operation button 51, emergency button 52, pressure valve 53. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0024] The following will, in conjunction with the drawings, detail the technical solutions provided by each embodiment of the present utility model.

[0025] An embodiment of the present utility model provides an automatic laminating device for attaching back glue to a liquid crystal display screen, including a support frame 1 for storing, supporting, and processing parts and devices, a laminating device 2 for performing laminating operations on products, a workbench 3 for placing the liquid crystal display screen to facilitate laminating operations, and a laminating panel 4 for laminating the liquid crystal display screen, and the laminating panel 4 is arranged in a matching manner with the liquid crystal display screen. The laminating device 2 includes a laminating mechanism 21 and a moving mechanism 22. A control operation device 5 for sensing and controlling is arranged on the support frame 1. Two lower slide rails 11 for the workbench 3 to slide back and forth are arranged inside the support frame 1. The support frame 1 is horizontally fixed on the work placement table. The laminating panel 4 is arranged at the lower end of the laminating mechanism 21. The workbench 3 is arranged at the upper end of the moving mechanism 22. The laminating mechanism 21 can drive the laminating panel 4 to move downward for laminating, and the moving mechanism 22 can drive the workbench to move back and forth.

[0026] This device can automatically perform the operation of attaching back glue to the liquid crystal display screen, avoiding uneven force application by personnel during pressing and easily missing areas, thereby enabling the back glue to be closely attached to the liquid crystal display screen cover plate, improving production efficiency, and reducing labor force.

[0027] In a further preferred embodiment of the present utility model, the laminating mechanism 21 includes a fixing plate 211, a laminating cylinder 212, and a support panel 213. The fixing plate 211 is arranged at the upper part of the support frame 1. The laminating cylinder 212 is arranged on the fixing plate 211 with its telescopic end facing downward. The support panel 213 is arranged on the telescopic end of the laminating cylinder 212.

[0028] By operating the laminating cylinder 212, the support panel 213 on the telescopic end of the laminating cylinder 212 can be driven to move, thereby driving the laminating panel 4 to move downward to achieve the function of downward pressing. A sensor is arranged on the laminating cylinder 212 to accurately perform the downward laminating operation.

[0029] In a further preferred embodiment of the present utility model, the moving mechanism 22 includes a moving cylinder 221 and a moving bracket 222. The moving cylinder 221 is arranged at the lower part inside the support frame 1. The moving bracket 222 is arranged on the telescopic end of the moving cylinder 221. The telescopic end of the moving cylinder 221 faces forward. The moving cylinder 221 is arranged horizontally. A sensor and a single-chip microcomputer are provided on the moving mechanism 22, and a relay is provided on the support frame 1.

[0030] In a further preferred embodiment of the present utility model, the control operation device 5 includes an operation button 51, an emergency button 52, and a pressure valve 53. The operation button 51 is arranged at the lower part of the support frame 1. The emergency button 52 is arranged at the upper part of the support frame 1. The pressure valve 53 is arranged inside the support frame 1 and its display surface is located outside.

[0031] By setting the operation button 51, the device can be started to perform the pressing operation. By the emergency button 52, the operation can be stopped urgently during the operation to avoid serious accidents. After calculating and converting the force on the back glue into an air pressure value, the pressing air pressure value required for the liquid crystal display screen to be processed can be viewed through the pressure valve 53. If there is a large difference in the air pressure value, readjustment is carried out, thereby reducing the damage rate of the product.

[0032] In a further preferred embodiment of the present utility model, a groove adapted to the liquid crystal display screen to be processed is provided on the workbench 3, and the groove is in a corresponding state with the pressing panel 4.

[0033] When the operator performs the operation of pasting the back glue and pressing the liquid crystal display screen, first, the moving cylinder 221 runs to drive the moving bracket 222 on the telescopic end to move outwards, thereby driving the workbench 3 to extend. Both of the lower slide rails 11 are in a cooperating state. After the workbench 3 is extended, the liquid crystal display screen to be processed is placed in the adapted groove on the workbench 3. At this time, the operator presses the operation button 51, and the moving cylinder 221 runs to drive the workbench 3 back to its original position. At this time, the liquid crystal display screen and the pressing panel 4 are in a corresponding state. The pressing cylinder 212 runs to drive the support panel 213 on its telescopic end to move downwards, thereby driving the pressing panel 4 to move towards the liquid crystal display screen direction to automatically realize the pressing operation. After the operation of pasting the back glue and pressing the liquid crystal display screen is completed, the moving cylinder 221 runs to extend the workbench 3, then the processed liquid crystal display screen is taken out, and then the liquid crystal display screen to be processed is placed to perform the repeated operation of pressing and processing.

[0034] In a further preferred embodiment of the present utility model, upper slide rails 12 for the up and down sliding of the pressing panel 4 are provided inside the support frame 1, and there are two upper slide rails 12.

[0035] Inside the support frame 1, there are two upper slide rails 12 for pressing and sliding the panel 4 up and down. First, it facilitates the smooth up and down movement of the panel 4. Second, it ensures that the position of the panel 4 during each up and down movement is the same, and it is accurately at the same pressing point during the pressing process, thereby improving the processing quality.

[0036] In a further preferred embodiment of the present utility model, both the workbench 3 and the pressing panel 4 are detachably arranged;

[0037] Since both the workbench 3 and the pressing panel 4 are detachably arranged, when processing liquid crystal displays of different sizes, the workbench 3 and the pressing panel 4 can be disassembled, and the workbench 3 and the pressing panel 4 adapted to the liquid crystal display to be processed can be replaced for operation. Thus, the device can be applied to automatic pressing operations of liquid crystal displays of respective sizes.

[0038] The above are only the embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. An automatic pressing device for attaching adhesive tape to a liquid crystal display screen, characterized in that: Comprising; A support frame (1) for storing, supporting and processing parts and devices; A pressing device (2) for performing pressing operations on products; A workbench (3) for placing a liquid crystal display screen to facilitate pressing operations; A pressing panel (4) for pressing the liquid crystal display screen, and the pressing panel (4) is arranged in adaptation to the liquid crystal display screen; The pressing device (2) includes a pressing mechanism (21) and a moving mechanism (22). A control operation device (5) for sensing and controlling is provided on the support frame (1). Inside the support frame (1), there are two lower slide rails (11) for the workbench (3) to slide back and forth. The support frame (1) is horizontally fixed on the work placement table. The pressing panel (4) is arranged at the lower end of the pressing mechanism (21), and the workbench (3) is arranged at the upper end of the moving mechanism (22). The pressing mechanism (21) can drive the pressing panel (4) to move downward for pressing, and the moving mechanism (22) can drive the workbench to move back and forth.

2. The automatic laminating device for attaching adhesive tape to the back of a liquid crystal display screen according to claim 1, characterized in that: The pressing mechanism (21) includes a fixing plate (211), a pressing cylinder (212) and a support panel (213). The fixing plate (211) is arranged at the upper part of the support frame (1). The pressing cylinder (212) is arranged on the fixing plate (211) with its telescopic end facing downward. The support panel (213) is arranged on the telescopic end of the pressing cylinder (212).

3. The automatic laminating device for attaching adhesive tape to the back of a liquid crystal display screen according to claim 1, characterized in that: The moving mechanism (22) includes a moving cylinder (221) and a moving support (222). The moving cylinder (221) is arranged at the lower part inside the support frame (1). The moving support (222) is arranged on the telescopic end of the moving cylinder (221). The telescopic end of the moving cylinder (221) faces forward, and the moving cylinder (221) is arranged horizontally.

4. The automatic laminating device for attaching adhesive tape to the back of a liquid crystal display screen according to claim 1, wherein: The workbench (3) is provided with a baffle (31), and the baffle (31) forms a fence extending from one side of the workbench (3) to the other side.

5. The automatic laminating device for attaching adhesive tape to the back of a liquid crystal display screen according to claim 1, characterized in that: The control operation device (5) includes an operation button (51), an emergency button (52) and a pressure valve (53). The operation button (51) is arranged at the lower position of the support frame (1). The emergency button (52) is arranged at the upper position of the support frame (1). The pressure valve (53) is arranged inside the support frame (1) with its display surface facing outside.

6. An automatic laminating device for attaching adhesive tape to the back of a liquid crystal display screen according to claim 1, characterized in that: The workbench (3) is provided with a groove adapted to the liquid crystal display screen to be processed, and the groove is in a corresponding state with the pressing panel (4).

7. An automatic laminating device for attaching adhesive tape to a liquid crystal display screen according to claim 1, characterized in that: Inside the support frame (1), there are two upper slide rails (12) for the pressing panel (4) to slide up and down.

8. The automatic laminating device for attaching adhesive tape to the back of a liquid crystal display screen according to claim 1, wherein: Both the workbench (3) and the pressing panel (4) are detachably arranged.

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