Film tearing structure for polarizing plate

Abstract

The utility model relates to the technical field of liquid crystal screens, and discloses a film tearing structure for a polarizer, which comprises a rack, two vacuum adsorption workbenches are arranged on the rack, an adjusting beam capable of moving along the Y axis and the Z axis is arranged on the rack, the adjusting beam is arranged along the X-axis direction, a plurality of film tearing assemblies are arranged on the adjusting beam, and the film tearing assemblies are arranged on the vacuum adsorption workbenches. The film tearing assembly comprises a plurality of sponge vacuum suction cups arranged on the adjusting beam, and the sponge vacuum suction cups can move in the X-axis direction. Through cooperation of the vacuum adsorption workbench, the double-shaft feeding system, the adjusting beam and the film tearing assembly, the efficient polarizer release film tearing process is achieved. The polarizing plate is fixed by the vacuum adsorption workbench, the edge of the release film is adsorbed by the sponge vacuum sucker on the adjusting beam, the film is torn through Y-axis movement, the release film is released at the feed opening, the next round of operation can be carried out immediately after one round of adsorption and film tearing is completed, and the effects of convenience in use and low maintenance cost are achieved.

Description

Technical Field

[0001] This application relates to the technical field of liquid crystal display screens, and particularly to a film tearing structure for a polarizing plate. Background Art

[0002] During the production process of liquid crystal display panels, the film tearing operation of polarizing plates is a crucial and delicate process. Currently, the widely used film tearing technology in the market mostly adopts the method of sticking with a rubber roller, that is, using the stickiness of the rubber roller to stick up and tear off the release film on the polarizing plate. However, in actual use, the stickiness of the rubber roller gradually decreases with the increase in the number of uses, and the rubber roller needs to be frequently replaced, increasing the maintenance cost and downtime, and affecting work efficiency. Utility Model Content

[0003] In order to solve the problem in the prior art that when using a rubber roller to tear the film of a polarizing plate, the stickiness of the rubber roller decreases and the roller needs to be frequently replaced, this application provides a film tearing structure for a polarizing plate.

[0004] The film tearing structure for a polarizing plate provided by this application adopts the following technical solutions:

[0005] A film tearing structure for a polarizing plate includes a frame. Two vacuum adsorption workbenches are arranged on the frame for vacuum adsorbing the polarizing plate. An adjusting beam that can move along the Y-axis and Z-axis is arranged on the frame. The adjusting beam is arranged along the X-axis direction. A plurality of film tearing components are arranged on the adjusting beam. Each film tearing component includes a plurality of sponge vacuum suction cups arranged on the adjusting beam, and the sponge vacuum suction cups can move along the X-axis direction for negative pressure adsorption to tear off the release film on the polarizing plate.

[0006] Preferably, a blanking port is reserved between the two vacuum adsorption workbenches for collecting the torn release film.

[0007] Preferably, the adjusting beam includes a cross beam. A sliding groove is arranged on the cross beam along the X-axis direction. A plurality of moving units are slidably arranged in the sliding groove. Each moving unit includes a slider slidably arranged in the sliding groove, and an adaptive component is arranged between the slider and the corresponding sponge vacuum suction cup.

[0008] Preferably, an adjusting groove is further arranged on the cross beam. A plurality of locking bolts are slidably arranged inside the adjusting groove. The end of each locking bolt passes through the corresponding slider and is threadedly connected to the slider.

[0009] Preferably, the adaptive component includes a guide sleeve arranged on the side of the slider. A guide air pipe is slidably arranged inside the guide sleeve for connecting the air source and the sponge vacuum suction cup. An elastic element is movably sleeved on the guide air pipe.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] By using the vacuum adsorption workbench, the biaxial feeding system, the adjusting beam, and the film tearing assembly in cooperation, the polarizer is fixed by the vacuum adsorption workbench. The release film at the edge of the polarizer is adsorbed by the sponge vacuum suction cups with adjustable quantity and position. Then, the vacuum adsorption workbench drives the sponge vacuum suction cups to move along the Y-axis to tear off the release film, replacing the glue roller to paste and tear the film. When passing through the blanking port, the sponge vacuum suction cups stop adsorbing and release the release film, and then the next round of adsorption can be carried out. Compared with the prior art, it has the effects of convenient use and low maintenance cost. Description of the Drawings

[0012] Figure 1 It is a first perspective three-dimensional structural schematic diagram of an application embodiment;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the adjusting beam and its related components in the application embodiment;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the film tearing assembly in the application embodiment.

[0015] Description of the reference numerals: 1, frame; 2, vacuum adsorption workbench; 3, biaxial feeding system; 4, adjusting beam; 401, cross beam; 402, sliding groove; 403, adjusting groove; 5, film tearing assembly; 501, moving unit; 5011, slider; 5012, locking bolt; 5013, guide sleeve; 502, telescopic unit; 5021, air duct; 5022, elastic element; 503, sponge vacuum suction cup. Detailed Embodiment

[0016] The following further describes the present application in detail with reference to the attached Figures 1-3 This application embodiment discloses a film tearing structure for a polarizer. Referring to

[0017] Figure 1 Figure 1

[0018]

[0018] A double-axis feeding system 3 is installed on the frame 1. An adjusting beam 4 is installed at the movable end of the double-axis feeding system 3. The adjusting beam 4 can be driven by the double-axis feeding system 3 to move along the Y-axis and Z-axis. The double-axis feeding system 3 is composed of a Y-axis feeding system and a Z-axis feeding system. Among them, the Y-axis feeding system can be an electric linear guide assembly or a ball screw assembly according to needs, and the Z-axis feeding system can select a telescopic cylinder. The telescopic cylinder can be selected as hydraulic drive, pneumatic drive or motor drive according to needs.

[0019] Referring to Figure 2 , the adjusting beam 4 includes a cross beam 401 installed at the movable end of the double-axis feeding system 3, and a chute 402 is opened on the cross beam 401 along the X-axis direction. A plurality of film tearing assemblies 5 are slidably installed in the chute 402. The film tearing assembly 5 includes a moving unit 501 detachably installed on the adjusting beam 4. The moving unit 501 includes a slider 5011 slidably installed on the chute 402. The film tearing assembly 5 is guided by the chute 402. An adjusting groove 403 is also opened on the cross beam 401. The adjusting groove 403 is perpendicular to the plane where the chute 402 is located. A plurality of locking bolts 5012 are slidably installed inside the adjusting groove 403. The end of the locking bolt 5012 passes through the corresponding slider 5011 and is threadedly connected to the slider 5011. The number of locking bolts 5012 on a single slider 5011 is two. By tightening the locking bolts 5012, the locking and separation of the slider 5011 relative to the adjusting beam 4 can be realized, so that the moving unit 501 can slide along the X-axis direction to adjust the distance between two adjacent moving units 501. When necessary, by removing the locking bolts 5012, the slider 5011 can be removed from the chute 402 to realize the rapid removal and replacement of the film tearing assembly 5, which is convenient for subsequent maintenance.

[0020] An adaptive component is installed on the side of the slider 5011. The adaptive component includes a guide sleeve 5013 installed on the side of the slider 5011. A telescopic unit 502 is slidably installed inside the guide sleeve 5013. The telescopic unit 502 includes a trachea 5021 slidably installed inside the guide sleeve 5013. Elastic elements 5022, such as springs, are movably sleeved on both the upper and lower ends of the trachea 5021. The lower end of the trachea 5021 is connected to a sponge vacuum suction cup 503, and the upper end of the trachea 5021 is connected to a trachea joint. The trachea joint is connected to a gas source. By introducing or releasing gas through the trachea 5021 and cooperating with the elastic element 5022 (such as a spring), the telescopic movement of the sponge vacuum suction cup 503 is realized, so as to gradually tear off the release film.

[0021] The implementation principle of a film tearing structure for a polarizing plate in an embodiment of the present application is as follows:

[0022] The bare board is placed on the vacuum adsorption workbench 2, and the polarizer is firmly adsorbed on the workbench to prevent it from moving during the film tearing process. The film tearing assembly 5 is positioned to the initial position through the biaxial feeding system 3, and is ready for the film tearing operation.

[0023] Use the biaxial feeding system 3 to adjust the position of the adjusting beam 4 so that it moves along the horizontal direction of the Y-axis and the vertical direction of the Z-axis to a suitable position, so that the film tearing assembly 5 can accurately align with the edge of the release film on the polarizer.

[0024] Through the adjusting slot 403 and the locking bolt 5012 on the adjusting beam 4, adjust the positions of the respective film tearing assemblies 5 in the X-axis crossbeam direction to ensure that the spacing between them is suitable for the size of the current polarizer and the layout of the release film.

[0025] The film tearing assembly 5 starts to work. The moving unit 501 in each assembly slides in the chute 402 through the slider 5011, so that the sponge vacuum suction cup 503 approaches and adsorbs a corner or the edge of the release film.

[0026] The telescopic unit 502 is activated, and gas is introduced or released through the air duct 5021. With the cooperation of the spring, the telescopic movement of the sponge vacuum suction cup 503 is realized, so as to gradually peel off the release film.

[0027] As the telescopic unit 502 continuously works, the release film is gradually peeled off and moves with the film tearing assembly 5. When the release film passes through the blanking opening reserved on the workbench 2, the sponge vacuum suction cup 503 stops working and releases the release film, so that it falls into the collection box below.

[0028] When all the release films have been successfully peeled off and collected, turn off the power supply of the vacuum pump and the film tearing assembly 5.

[0029] Remove the polarizer with the film tearing completed from the workbench and prepare for the next processing.

[0030] Check and clean the film tearing assembly 5 and the vacuum adsorption workbench 2, and prepare for the next use.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0032] Second: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit 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 protection scope of the present utility model.

[0034] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A polarizing plate tearing structure, comprising a frame (1), characterized in that: The frame (1) is provided with two vacuum adsorption workbenches (2) for vacuum adsorption of polarizing plates. The frame (1) is provided with an adjustment beam (4) which can move along the Y-axis and the Z-axis. The adjustment beam (4) is arranged along the X-axis direction. The adjustment beam (4) is provided with a plurality of film tearing assemblies (5). The film tearing assemblies (5) include a plurality of sponge vacuum suction cups (503) arranged on the adjustment beam (4). The sponge vacuum suction cups (503) can move along the X-axis direction and are used for negative pressure adsorption to tear off the release film on the polarizing plate.

2. The tearing film structure for polarizing plate according to claim 1, characterized in that: A material discharge port is reserved between the two vacuum adsorption workbenches (2) for collecting the torn release film.

3. The tearing film structure for polarizing plate according to claim 1, characterized in that: The adjusting beam (4) comprises a crossbeam (401), a slide groove (402) is arranged on the crossbeam (401) along the X-axis direction, a plurality of moving units (501) are slidably arranged in the slide groove (402), and the moving unit (501) comprises a slider (5011) slidably arranged in the slide groove (402), and an adaptive component is arranged between the slider (5011) and the corresponding sponge vacuum suction cup (503).

4. The tearing film structure for polarizing plate according to claim 3, characterized in that: The crossbeam (401) is also provided with an adjustment groove (403), and a plurality of locking bolts (5012) are slidably provided inside the adjustment groove (403). The ends of the locking bolts (5012) pass through the corresponding sliders (5011) and are threadedly connected to the sliders (5011).

5. The tearing film structure for polarizing plate according to claim 3, characterized in that: The adaptive component comprises a guide sleeve (5013) arranged on the side of the slider (5011), an air guide tube (5021) is slidably arranged inside the guide sleeve (5013) for connecting the air source with the sponge vacuum suction cup (503), and an elastic element (5022) is movably sleeved on the air guide tube (5021).

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