Online automatic film tearing device for liquid crystal display screen

Abstract

The utility model relates to an on-line automatic film tearing device for a liquid crystal display screen, which belongs to the technical field of liquid crystal display screens and comprises a conveying device, the top surface of the conveying device is fixedly connected with a fixing plate, the liquid crystal display screen is placed on the conveying device, a mounting plate is placed on the right side of the fixing plate, and an adhesive tape disc is placed on the front surface of the fixing plate. A first air cylinder is fixedly mounted on the front face of the mounting plate, the output end of the first air cylinder is fixedly connected with a film tearing head, and the front face of the mounting plate is movably connected with two guide wheels through bearings. According to the on-line automatic film tearing device for the liquid crystal display screen, under the action of an adhesive tape on an adhesive tape disc, a protective film is fixed, then the protective film is driven to move, the protective film is conveniently torn off, operation of workers is facilitated, the labor cost is reduced, the film tearing efficiency is improved, under the action of a first air cylinder, a film tearing head is driven to move, and the film tearing efficiency is improved. And the operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screens, in particular to an online automatic film-tearing device for a liquid crystal display screen. Background Art

[0002] Liquid crystal display is a type of flat-panel display used for television and computer screen displays. The advantages of this display are low power consumption, small size and low radiation. The liquid crystal display uses a liquid crystal solution in two pieces of polarized material. When current passes through the liquid, the crystals will rearrange to achieve the purpose of imaging.

[0003] In the production process of liquid crystal display screens, a protective film attached to the display screen substrate needs to be torn off in each process of the production process. At present, the product is manually picked up on the assembly line, the protective film is torn off, and then the product is put back on the assembly line to flow into the next process. The manual film tearing method is labor-intensive and highly dependent on the operator. Due to the manual film tearing, the efficiency is very low and the probability of misoperation is relatively high. Therefore, an online automatic film tearing device for liquid crystal display screens is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an online automatic film-tearing device for a liquid crystal display screen, which has the advantages of automatic film-tearing and solves the problem that in the production process of the liquid crystal display screen, a layer of protective film attached to the display screen substrate needs to be torn off in each process of the production process. At present, the product is manually picked up on the assembly line, the protective film is torn off, and then the product is put back on the assembly line to flow into the next process. The manual film-tearing method has high labor intensity and high dependence on operators. Due to manual film-tearing, the efficiency is very low and the probability of misoperation is relatively high.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online automatic film tearing device for a liquid crystal display screen, comprising a conveying device, a top surface of which is fixedly connected to a fixing plate, a liquid crystal display screen is placed on the conveying device, and a mounting plate is placed on the right side of the fixing plate.

[0006] A tape reel is placed on the front side of the fixed plate, a first cylinder is fixedly installed on the front side of the mounting plate, a film tearing head is fixedly connected to the output end of the first cylinder, two guide wheels are movably connected to the front side of the mounting plate through bearings, a limiting wheel is movably connected to the front side of the mounting plate through bearings, a lifting motor is fixedly installed on the back side of the fixed plate, a connecting plate is fixedly connected to the back side of the fixed plate, a sliding plate is mounted on the connecting plate, the sliding plate is fixedly connected to the mounting plate, and the output end of the lifting motor is fixedly connected to the sliding plate.

[0007] The fixing plate is provided with a limiting component for limiting the adhesive tape.

[0008] The fixed plate is provided with a driving assembly for driving the adhesive tape to move.

[0009] Furthermore, the two guide wheels are symmetrically distributed with the film tearing head as the center, the bottom surface of the film tearing head is located at the bottom of the bottom surface of the guide wheel, and the connecting plate and the sliding plate are slidably connected.

[0010] Furthermore, the limiting wheel is located on the left side of the first cylinder, the tape on the tape reel extends to the bottom of the film tearing head, and the adhesive surface of the tape does not fit the film tearing head.

[0011] Furthermore, the limit assembly includes a driving motor, which is fixedly mounted on the back side of the fixed plate, and the back side of the fixed plate is movably connected to a transmission roller with one end penetrating the fixed plate and extending to the front side of the fixed plate through a bearing, the output end of the driving motor and the outer peripheral wall of the transmission roller are fixedly mounted with a first pulley, a first belt is sleeved between the two first pulleys, a clamping plate is fixedly connected to the front side of the fixed plate, a second cylinder is fixedly mounted on the right side of the clamping plate, the output end of the second cylinder is fixedly connected to a moving frame, the internal rotation of the moving frame is connected to a pressure roller, and the front side of the fixed plate is movably connected to a limiting rod through a bearing.

[0012] Furthermore, the transmission roller is located at the bottom of the pressure roller, the tape on the tape reel is located between the pressure roller and the transmission roller, the outer peripheral walls of the transmission roller and the limiting rod are both in contact with the adhesive surface of the tape, and the movable frame is a U-shaped frame.

[0013] Furthermore, the driving assembly includes two fixing frames, the two fixing frames are fixedly connected to the back side of the fixing plate, the back side of the two fixing frames are fixedly installed with a rotating motor, the output ends of the two rotating motors pass through the fixing frames and extend to the inside thereof, the back side of the fixing plate is movably connected to two rotating rods with one end passing through the fixing plate and extending to the front side thereof through a bearing, the tape reel is fixedly installed on the outer peripheral wall of the top rotating rod, the outer peripheral wall of the rotating rod at the bottom is fixedly installed with a collecting plate, the tape on the tape reel extends to the collecting plate and is fixedly connected to the collecting plate, the output ends of the two rotating motors and the outer peripheral walls of the two rotating rods are fixedly installed with a second pulley, a second belt is mounted between the outer peripheral walls of two adjacent second pulleys, and the front side of the fixing plate is movably connected with a supporting roller through a bearing.

[0014] Furthermore, the two fixing frames are both U-shaped frames, the output ends of the two rotating motors are rotationally connected to the two fixing frames respectively through bearings, and the two rotating rods rotate in opposite directions.

[0015] Furthermore, the support roller is located on the left side of the movable frame, the adhesive tape on the tape reel is in contact with the support roller, and the adhesive surface of the adhesive tape is located at the bottom of the support roller.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The online automatic film-tearing device for the LCD screen fixes the protective film through the action of the tape on the tape reel, and then drives the protective film to move, so that the protective film can be easily torn off, which is convenient for the staff to operate, reduces labor costs, and improves the film-tearing efficiency. The film-tearing head is driven to move under the action of the first cylinder, which is convenient for the staff to operate;

[0018] 2. The online automatic film tearing device for the LCD screen can conveniently collect the tape through the collection plate, and drive the film tearing head to move through the lifting motor, which is convenient for the staff to operate. At the same time, through the conveying device, it can conveniently drive the LCD screen to move, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the fixing plate in the structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the back side of the fixing plate in the structure of the utility model;

[0022] Figure 4 It is a front schematic diagram of the mounting plate in the structure of the utility model.

[0023] In the figure: 1 conveying device, 2 liquid crystal display screen, 3 film tearing head, 4 guide wheel, 5 mounting plate, 6 fixed plate, 7 driving motor, 8 card plate, 9 fixed frame, 10 second cylinder, 11 moving frame, 12 pressure roller, 13 driving roller, 14 limit rod, 15 limit wheel, 16 rotating rod, 17 collecting plate, 18 rotating motor, 19 second pulley, 20 tape reel, 21 second belt, 22 first belt, 23 first pulley, 24 sliding plate, 25 connecting plate, 26 lifting motor, 27 first cylinder, 28 supporting roller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 In this embodiment, an online automatic film tearing device for a liquid crystal display screen includes a conveying device 1, a fixing plate 6 is fixedly connected to the top surface of the conveying device 1, a liquid crystal display screen 2 is placed on the conveying device 1, and a mounting plate 5 is placed on the right side of the fixing plate 6.

[0026] A tape reel 20 is placed on the front of the fixed plate 6, a first cylinder 27 is fixedly installed on the front of the mounting plate 5, and a film tearing head 3 is fixedly connected to the output end of the first cylinder 27. Two guide wheels 4 are movably connected to the front of the mounting plate 5 through bearings, and a limiting wheel 15 is movably connected to the front of the mounting plate 5 through bearings. A lifting motor 26 is fixedly installed on the back of the fixed plate 6, and a connecting plate 25 is fixedly connected to the back of the fixed plate 6. The connecting plate 25 is fitted with a sliding plate 24, and the sliding plate 24 is fixedly connected to the mounting plate 5, and the output end of the lifting motor 26 is fixedly connected to the sliding plate 24.

[0027] Among them, the two guide wheels 4 are symmetrically distributed with the film tearing head 3 as the center, the bottom surface of the film tearing head 3 is located at the bottom of the bottom surface of the guide wheel 4, the connecting plate 25 and the sliding plate 24 are slidably connected, the limiting wheel 15 is located on the left side of the first cylinder 27, and the tape on the tape reel 20 extends to the bottom of the film tearing head 3, and the adhesive surface of the tape does not fit the film tearing head 3.

[0028] It should be noted that the conveying device 1 and the lifting motor 26 are conventional devices known to the public in the prior art, and their specific structures and working principles are not described in detail herein.

[0029] Specifically, the lifting motor 26 is started, and the output end of the lifting motor 26 drives the sliding plate 24 to move, thereby moving the mounting plate 5, adjusting the height of the film tearing head 3, supporting the sliding plate 24 through the sliding connection between the connecting plate 25 and the sliding plate 24, and improving the stability of the sliding plate 24. The conveying device 1 is started to move the LCD screen 2. When the LCD screen 2 is located at the bottom of the film tearing head 3, the first cylinder 27 is started, and the output end of the first cylinder 27 drives the film tearing head 3 to move downward, so that the adhesive surface of the tape fits the protective film on the LCD screen 2, and the film tearing head 3 is reset, thereby separating the protective film from the LCD screen 2.

[0030] Example 2: Please refer to Figure 1-4In this embodiment, on the basis of the first embodiment, a limit assembly is provided on the fixed plate 6, and the limit assembly includes a driving motor 7, which is fixedly mounted on the back of the fixed plate 6. The back of the fixed plate 6 is movably connected to a transmission roller 13 having one end penetrating the fixed plate 6 and extending to the front of the fixed plate 6 through a bearing. The output end of the driving motor 7 and the outer peripheral wall of the transmission roller 13 are both fixedly mounted with a first pulley 23, and a first belt 22 is sleeved between the two first pulleys 23. The front of the fixed plate 6 is fixedly connected with a card plate 8, and the right side of the card plate 8 is fixedly mounted with a second cylinder 10. The output end of the second cylinder 10 is fixedly connected with a moving frame 11, and the internal rotation of the moving frame 11 is connected with a pressure roller 12. The front of the fixed plate 6 is movably connected with a limit rod 14 through a bearing.

[0031] Among them, the driving roller 13 is located at the bottom of the pressure roller 12, the tape on the tape reel 20 is located between the pressure roller 12 and the driving roller 13, the outer peripheral walls of the driving roller 13 and the limiting rod 14 are both in contact with the adhesive surface of the tape, and the movable frame 11 is a U-shaped frame.

[0032] It should be noted that the first cylinder 27 and the second cylinder 10 are conventional devices known to the public in the prior art, and their specific structures and working principles are not described in detail herein.

[0033] Specifically, the second cylinder 10 is started, and the output end of the second cylinder 10 drives the pressure roller 12 to move to squeeze the tape, and the drive motor 7 is started, and the output end of the drive motor 7 drives the top first pulley 23 to rotate. Under the action of the first belt 22, the transmission roller 13 rotates, driving the tape to move.

[0034] Example 3: Please refer to Figure 1-4 In this embodiment, on the basis of the first embodiment and the second embodiment, a driving assembly is provided on the fixed plate 6, and the driving assembly includes two fixed frames 9, the two fixed frames 9 are fixedly connected to the back of the fixed plate 6, and the back of the two fixed frames 9 are fixedly installed with a rotating motor 18, the output ends of the two rotating motors 18 pass through the fixed frame 9 and extend to the inside thereof, the back of the fixed plate 6 is movably connected to two rotating rods 16 with one end passing through the fixed plate 6 and extending to the front thereof through a bearing, the tape reel 20 is fixedly installed on the outer peripheral wall of the top rotating rod 16, and the outer peripheral wall of the rotating rod 16 at the bottom is fixedly installed with a collecting plate 17, and the tape on the tape reel 20 extends to the collecting plate 17 and is fixedly connected thereto, the output ends of the two rotating motors 18 and the outer peripheral walls of the two rotating rods 16 are fixedly installed with second pulleys 19, and a second belt 21 is sleeved between the outer peripheral walls of the two adjacent second pulleys 19, and the front of the fixed plate 6 is movably connected with a supporting roller 28 through a bearing.

[0035] Among them, the two fixed frames 9 are both U-shaped frames, the output ends of the two rotating motors 18 are rotatably connected to the two fixed frames 9 through bearings, the two rotating rods 16 turn in opposite directions, the support roller 28 is located on the left side of the mobile frame 11, the tape on the tape reel 20 is in contact with the support roller 28, and the adhesive surface of the tape is located at the bottom of the support roller 28.

[0036] Specifically, the rotating motor 18 is started, and the output end of the rotating motor 18 drives the top second pulley 19 to rotate, and then through the action of the second belt 21, drives the two rotating rods 16 to rotate, and then drives the collection plate 17 and the tape reel 20 to rotate respectively, so as to release and reel the tape.

[0037] The working principle of the above embodiment is:

[0038] Start the lifting motor 26, the output end of the lifting motor 26 drives the sliding plate 24 to move, and then moves the mounting plate 5, adjusts the height of the film tearing head 3, supports the sliding plate 24 through the sliding connection between the connecting plate 25 and the sliding plate 24, improves the stability of the sliding plate 24, and fixes the tape reel 20 on the outer peripheral wall of the top rotating rod 16, pulls the tape to move the tape, and then fixes it on the collecting plate 17, and the supporting roller 28, the pressure roller 12, the transmission roller 13, the limit rod 14, the guide wheel 4 and the limit wheel 15 are all in contact with the tape, thereby supporting the tape, start the second cylinder 10, the output end of the second cylinder 10 drives the pressure roller 12 to move, squeezes the tape, places the LCD screen 2 on the conveying device 1, and starts the rotating motor 18 And the driving motor 7, the output end of the rotating motor 18 drives the second pulley 19 on the top to rotate, and then through the action of the second belt 21, drives the two rotating rods 16 to rotate, and then drives the collecting plate 17 and the tape reel 20 to rotate respectively, to release and reel the tape, the output end of the driving motor 7 drives the first pulley 23 on the top to rotate, through the action of the first belt 22, the transmission roller 13 is rotated, drives the tape to move, starts the conveying device 1, moves the LCD screen 2, when the LCD screen 2 is located at the bottom of the film tearing head 3, starts the first cylinder 27, and the output end of the first cylinder 27 drives the film tearing head 3 to move downward, so that the adhesive surface of the tape fits the protective film on the LCD screen 2, and the film tearing head 3 is reset, so that the protective film is separated from the LCD screen 2.

[0039] The control method of the present invention is controlled by a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online automatic film-tearing device for a liquid crystal display screen, comprising a conveying device (1), characterized in that: A fixing plate (6) is fixedly connected to the top surface of the conveying device (1), a liquid crystal display screen (2) is placed on the conveying device (1), and a mounting plate (5) is placed on the right side of the fixing plate (6); A tape reel (20) is placed on the front of the fixed plate (6), a first cylinder (27) is fixedly installed on the front of the mounting plate (5), and a film tearing head (3) is fixedly connected to the output end of the first cylinder (27), two guide wheels (4) are movably connected to the front of the mounting plate (5) through a bearing, and a limit wheel (15) is movably connected to the front of the mounting plate (5) through a bearing, a lifting motor (26) is fixedly installed on the back of the fixed plate (6), a connecting plate (25) is fixedly connected to the back of the fixed plate (6), and a sliding plate (24) is sleeved on the connecting plate (25), and the sliding plate (24) is fixedly connected to the mounting plate (5), and the output end of the lifting motor (26) is fixedly connected to the sliding plate (24); The fixing plate (6) is provided with a limiting component, and the fixing plate (6) is provided with a driving component.

2. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 1, characterized in that: The two guide wheels (4) are symmetrically distributed with the film tearing head (3) as the center, the bottom surface of the film tearing head (3) is located at the bottom of the bottom surface of the guide wheel (4), and the connecting plate (25) and the sliding plate (24) are slidably connected.

3. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 2, characterized in that: The limiting wheel (15) is located on the left side of the first cylinder (27), the tape on the tape reel (20) extends to the bottom of the film tearing head (3), and the adhesive surface of the tape does not fit the film tearing head (3).

4. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 1, characterized in that: The limiting assembly comprises a driving motor (7), the driving motor (7) being fixedly mounted on the back side of a fixed plate (6), the back side of the fixed plate (6) being movably connected to a transmission roller (13) having one end penetrating the fixed plate (6) and extending to the front side of the fixed plate (6) through a bearing, the output end of the driving motor (7) and the outer peripheral wall of the transmission roller (13) being fixedly mounted with a first pulley (23), a first belt (22) being sleeved between the two first pulleys (23), the front side of the fixed plate (6) being fixedly connected to a card plate (8), the right side of the card plate (8) being fixedly mounted with a second cylinder (10), the output end of the second cylinder (10) being fixedly connected to a moving frame (11), the interior of the moving frame (11) being rotatably connected to a pressure roller (12), and the front side of the fixed plate (6) being movably connected to a limiting rod (14) through a bearing.

5. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 4, characterized in that: The driving roller (13) is located at the bottom of the pressure roller (12), the tape on the tape reel (20) is located between the pressure roller (12) and the driving roller (13), the outer peripheral walls of the driving roller (13) and the limiting rod (14) are both in contact with the adhesive surface of the tape, and the movable frame (11) is a U-shaped frame.

6. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 4, characterized in that: The driving assembly comprises two fixing frames (9), the two fixing frames (9) are fixedly connected to the back of the fixing plate (6), the back of the two fixing frames (9) are fixedly mounted with a rotating motor (18), the output ends of the two rotating motors (18) pass through the fixing frames (9) and extend to the inside thereof, the back of the fixing plate (6) is movably connected to two rotating rods (16) having one end passing through the fixing plate (6) and extending to the front thereof through a bearing, and the tape reel (20) is fixedly mounted on the top A collecting plate (17) is fixedly mounted on the outer peripheral wall of the rotating rod (16) at the bottom, the tape on the tape reel (20) extends to the collecting plate (17) and is fixedly connected thereto, the output ends of the two rotating motors (18) and the outer peripheral walls of the two rotating rods (16) are fixedly mounted with second pulleys (19), the outer peripheral walls of two adjacent second pulleys (19) are provided with a second belt (21), and the front surface of the fixed plate (6) is movably connected with a supporting roller (28) via a bearing.

7. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 6, characterized in that: The two fixing frames (9) are both U-shaped frames, the output ends of the two rotating motors (18) are rotationally connected to the two fixing frames (9) respectively through bearings, and the two rotating rods (16) rotate in opposite directions.

8. The on-line automatic film-tearing device for a liquid crystal display screen according to claim 7, characterized in that: The support roller (28) is located on the left side of the movable frame (11), the adhesive tape on the tape reel (20) is in contact with the support roller (28), and the adhesive surface of the adhesive tape is located at the bottom of the support roller (28).

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