Film tearing device and display screen assembling equipment

Abstract

The utility model discloses a film tearing device and display screen assembling equipment, and relates to the technical field of display screen production equipment, the film tearing device comprises a pick-and-place assembly used for taking a product to be subjected to film tearing; the bearing assembly is arranged below the taking and placing assembly; the film pre-stretching mechanism is arranged on one side of the bearing assembly and is used for pulling the end part of a bottom film of the product to be subjected to film tearing to the bearing assembly; and the film separating mechanism is movably arranged on one side of the bearing assembly, located on the side, back to the bearing assembly, of the bottom film and used for abutting against the bottom film so as to tear off the bottom film from the product to be subjected to film tearing. According to the technical scheme provided by the utility model, the film stripping mechanism is used for stripping the film of the product to be stripped, so that the success rate of one-time film stripping is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display production equipment, in particular to a film tearing device and a display assembly device. Background Art

[0002] A display screen is an electronic device used to display images, texts, and other visual information. They are widely used in various occasions, including personal use, commercial displays, industrial control, and public information displays. During the display assembly process, film tearing is an important step, which generally refers to removing the protective film on the liquid crystal panel (OC) during the manufacturing or assembly of the display screen, and careful operation is required to ensure the quality of the final product. Currently, manual film tearing is adopted. During the process of tearing the bottom film, due to different operations of different employees, there will be different film tearing speeds and forces, and it is easy to cause screen damage to the liquid crystal panel during the film tearing process, thereby reducing the success rate of one-time film tearing. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a film tearing device and a display assembly device, aiming to improve the success rate of film tearing for products to be film torn.

[0004] To achieve the above purpose, the film tearing device proposed by the utility model includes:

[0005] A pick-and-place component for picking up and placing the product to be film torn;

[0006] A carrying component arranged below the pick-and-place component;

[0007] A pre-tensioning film mechanism arranged on one side of the carrying component for pulling the end of the bottom film of the product to be film torn to the carrying component; and

[0008] A film separating mechanism movably arranged on one side of the carrying component and located on the side of the bottom film facing away from the carrying component for abutting against the bottom film to tear the bottom film from the product to be film torn.

[0009] The utility model also provides a display assembly device, including a film tearing device, and the film tearing device includes:

[0010] A pick-and-place component for picking up and placing the product to be film torn;

[0011] A carrying component arranged below the pick-and-place component;

[0012] A pre-tensioning film mechanism arranged on one side of the carrying component for pulling the end of the bottom film of the product to be film torn to the carrying component; and

[0013] The film separating mechanism is movably arranged on one side of the carrying component and on the side of the bottom film facing away from the carrying component, and is used to abut against the bottom film to tear the bottom film from the product to be torn. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0015] Figure 1 Schematic structural diagram of an embodiment of the film tearing device and the display screen assembly equipment provided by the present invention;

[0016] Figure 2 For Figure 1 Schematic three-dimensional structure diagram of an embodiment of the picking and placing component in

[0017] Figure 3 Schematic three-dimensional structure diagram of an embodiment of the film tearing device provided by the present invention;

[0018] Figure 4 For Figure 1 Schematic three-dimensional structure diagram of an embodiment of the product inlet / outlet and positioning mechanism of

[0019] Figure 5 For Figure 4 Schematic three-dimensional structure diagram of an embodiment of the lifting member in

[0020] Figure 6 For Figure 1 Schematic three-dimensional structure diagram of an embodiment of the safety protection mechanism in

[0021] Explanation of the reference numerals in the drawings:

[0022] 10. Picking and placing component; 11. Frame; 12. Robot arm; 13. Clamping suction cup; 20. Carrying component; 21. Support; 22. Flipping platform; 23. Clamping member; 24. Vacuum suction cup; 30. Pre-stretching film mechanism; 31. Driving component; 32. Adhesive tape component; 321. Support frame; 322. Adhesive tape; 40. Film separating mechanism; 41. Sliding member; 42. Film separating roller; 50. Bottom film collecting mechanism; 60. Product inlet / outlet and positioning mechanism; 61. Conveying component; 62. Support plate; 63. Stopper; 64. Lifting member; 70. Vision positioning mechanism; 80. Belt conveyor; 90. Safety protection mechanism.

[0023] The realization, functional features and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] For the assembly and manufacturing of the display screen, during the assembly process, in order to ensure the performance and quality of the final product and enable the display screen to provide the best image quality, it is necessary to tear off the bottom film of the liquid crystal panel (OC). Since different employees may have different film tearing speeds and forces during the film tearing process, the amount of static electricity generated during the film tearing process is uncontrollable. When the static electricity is large, the phenomenon of OC breakdown and screen damage will occur, reducing the success rate of one-time film tearing and thus affecting the production speed of the production line.

[0028] In view of this, an embodiment of the present utility model provides a film tearing device, which can realize film tearing during the assembly process of a liquid crystal panel (OC). The pre-tensioning film mechanism pulls the end of the bottom film of the product to be film torn to the bearing assembly, and then the film separating mechanism abuts against the bottom film to tear it off from the product to be film torn. The film separating mechanism can accurately adjust the speed and force of film tearing, and the stable film tearing action can effectively avoid the situation of excessive electrostatic force fluctuation, ensuring the stability of the film tearing process.

[0029] To better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings.

[0030] Please refer to Figure 1 、 Figure 2 and Figure 3 A film tearing device proposed by an embodiment of the present utility model is used for tearing the film of a product to be film torn. The film tearing device includes:

[0031] A picking and placing assembly 10 for picking up and placing the product to be film torn;

[0032] A bearing assembly 20 is arranged below the picking and placing assembly 10;

[0033] A pre-tensioning film mechanism 30 is arranged on one side of the bearing assembly 20 for pulling the end of the bottom film of the product to be film torn to the bearing assembly 20; and

[0034] A film separating mechanism 40 is movably arranged on one side of the bearing assembly 20 and on the side of the bottom film facing away from the bearing assembly 20 for abutting against the bottom film to tear the bottom film off from the product to be film torn.

[0035] In the technical solution adopted in this embodiment, the pick-and-place component 10 can be used to conveniently pick up the product with the film to be torn, and can provide a supporting effect on the product with the film to be torn. The bearing component 20 is arranged below the pick-and-place component 10 and can provide a support point for the bottom film. Moreover, by using the pre-stretching film mechanism 30, when the pick-and-place component 10 picks up the product with the film to be torn and moves to the film-tearing position to prepare for film tearing, the pre-stretching film mechanism 30 is used to pull the end of the bottom film of the product with the film to be torn to the bearing component 20 for fixation; after the fixation is completed, the pre-stretching film mechanism 30 is separated from the bottom film. In addition, by setting the film-separating mechanism 40, when the film of the product with the film to be torn needs to be torn after the bottom film is fixed, the film-separating mechanism 40 is in a working state. At this time, the film-separating mechanism 40 moves from one side of the bearing component 20 and on the side of the bottom film facing away from the bearing component 20 to the other side. During the movement, the film-separating mechanism 40 abuts against the bottom film to tear the bottom film from the product with the film to be torn; when the film-separating work is completed, the film-separating mechanism 40 returns to the initial film-separating position. The technical solution proposed in the embodiment of the present invention replaces the operation of manually tearing the film of the product, can accurately adjust the speed and strength of film tearing, and the stable film-tearing action can effectively avoid the situation of excessive electrostatic force floating, ensuring the stability of the film-tearing process, thereby improving the success rate of one-time film tearing.

[0036] Specifically, the film-tearing device includes a pick-and-place component 10, a bearing component 20, a pre-stretching film mechanism 30, and a film-separating mechanism 40.

[0037] The pick-and-place component 10 is used to pick up the product with the film to be torn and provide support for the product with the film to be torn. The pick-and-place component 10 can be a robot. The robot can pick up the product with the film to be torn to the film-tearing position, and the product with the film to be torn can be fixed at the film-tearing position through the robot. In this way, it is convenient to start the film-tearing operation on the bottom film. After the film-tearing operation is completed, the product after the film-tearing operation is moved away from the film-tearing position through the robot for the next assembly production. The pick-and-place component 10 can be set to one or multiple. In this embodiment, the pick-and-place component 10 is set to two, which are respectively arranged on both sides of the bearing component 20. By using two pick-and-place components 10, the coherent and efficient operation of bottom film tearing can be realized.

[0038] The bearing component 20 is used to realize the bearing of the bottom film. It can be understood that the bearing component 20 can fix the end of the bottom film of the product with the film to be torn to prevent the bottom film from swinging during the film-tearing operation. In this way, after the product with the film to be torn is fixed, it is convenient to separate the bottom film from the product with the film to be torn. The bearing component 20 can be a fixed plate or a fixed frame, which is arranged below the pick-and-place component 10. When film tearing is required, the end of the bottom film is fixed through the fixed plate or the fixed frame until the bottom film is completely separated from the product with the film to be torn. At this time, the bottom film is separated from the product with the film to be torn onto the fixed plate or the fixed frame. Then the bottom film is detached from the fixed plate or the fixed frame. In this way, the bearing component 20 can start a new film-tearing operation.

[0039] The pre-film-stretching mechanism 30 is used to pull the end of the bottom film of the product to be torn off to the carrier assembly 20. It can be understood that the pre-film-stretching mechanism 30 can realize the connection between the end of the bottom film and the carrier assembly 20. The pre-film-stretching mechanism 30 can be a clamping claw, which is movably arranged on the carrier assembly 20. When the pick-and-place assembly 10 takes the product to be torn off to the film-tearing point, the clamping claw can move in the horizontal or vertical axis direction, thereby pulling the end of the bottom film onto the carrier assembly 20, so as to facilitate the precise fixation of the end of the bottom film; after the bottom film is fixed, the clamping claw is separated from the bottom film to avoid affecting the subsequent film tearing and stripping.

[0040] The film separation mechanism 40 is used to separate the product to be torn from the bottom film. It can be understood that when the product to be torn is located at the film tearing point and the bottom film is fixed, the bottom film can be gradually separated from the product to be torn from the side of the bottom film away from the bearing assembly 20 by the film separation mechanism 40. The film separation mechanism 40 can be a movable rod or a movable plate. When the movable rod or the movable plate is working, that is, when it moves linearly, it can abut against the bottom film, so that the bottom film is separated from the product to be torn along the movement direction of the movable rod or the movable plate. At the same time, the film separation movement is controlled by a servo motor, so that the bottom film tearing speed can be adjusted in multiple stages by adjusting the servo motor, and the function can be stably maintained.

[0041] Further, see Figure 3 In one embodiment of the present utility model, the bearing assembly 20 includes:

[0042] Bracket 21;

[0043] A flipping platform 22, which is rotatably disposed on the bracket 21, and a vacuum suction cup 24 is disposed on the flipping platform 22 to adsorb the detached bottom film onto the flipping platform 22; and

[0044] The clamping member 23 is disposed on the turning platform 22 and is used for clamping the base film pulled by the pre-film-stretching mechanism 30 .

[0045] In the technical solution adopted in this embodiment, the carrying component 20 may further include a bracket 21, a flipping platform 22, and a clamping member 23. In this embodiment, the bracket 21 can be made of metal materials such as stainless steel and iron, with a certain load-bearing capacity, and can provide a supporting function. The flipping platform 22 is rotatably connected to the bracket 21 and can be rotationally connected to the bracket 21 through a rotating shaft, and can rotate relative to the bracket 21 under the action of an external force. The surface of the flipping platform 22 is provided with a vacuum suction cup 24, which can be used to adsorb the bottom film. It can be understood that when the bottom film is gradually separated from the product to be peeled, the separated part of the bottom film will be fixed on the flipping platform 22 through the vacuum suction cup 24. In this way, the bottom film can be tightened during the process of separating the bottom film, making the film peeling operation easier to operate, enabling more precise control of the separation speed, avoiding damage caused by too fast separation, and helping to reduce the generation of static electricity. Of course, in order to ensure the stability of the film peeling process, a clamping member 23 is provided on the flipping platform 22 to fix the end of the bottom film. The clamping member 23 can be a film clamping cylinder. When the pre-stretching film mechanism 30 pulls the bottom film to the cylinder film clamping point, the film clamping cylinder acts to clamp the bottom film. In addition, after the film peeling operation is completed, the flipping platform 22 flips to the film throwing position, the vacuum of the vacuum suction cup 24 is disconnected, the film clamping cylinder releases the bottom film, and the bottom film can fall from the flipping platform 22 to the lower part.

[0046] Further, referring to Figure 1 、 Figure 2 , in an embodiment of the present utility model, the picking and placing component 10 includes:

[0047] A frame body 11, provided on one side of the bracket 21;

[0048] A robotic arm 12, rotatably arranged on the frame body 11; and

[0049] A fixture suction cup 13, provided at the end of the robotic arm 12 away from the frame body 11.

[0050] In the technical solution adopted in this embodiment, the provided frame body 11 provides overall structural support for the picking and placing component 10. The robotic arm 12 is arranged on the frame body 11, and the movable end of the robotic arm 12 can be rotated above the flipping platform 22 so as to be able to move to the film peeling position above the flipping platform 22 after picking up the product to be peeled. The fixture suction cup 13 is generally made of lightweight materials such as alloys and can meet the strength requirements. At the same time, the fixture suction cup 13 should be an anti-static suction cup, and the fixture suction cup 13 can use multiple small suction cups to suck the product to be peeled, ensuring uniform force on the product to be peeled.

[0051] Further, referring to Figure 3 , in an embodiment of the present utility model, the film peeling device further includes a bottom film collecting mechanism 50, and the bottom film collecting mechanism 50 is arranged below the flipping platform 22.

[0052] In the technical solution adopted in this embodiment, by providing a bottom film collecting mechanism 50, the bottom film separated from the flipping platform 22 can be collected, facilitating subsequent cleaning. The bottom film collecting mechanism 50 can be a collecting bin or a collecting conveyor belt, and is arranged below the flipping platform 22. When the flipping platform 22 flips, the bottom film can fall into the collecting bin or the collecting conveyor belt to complete the collection.

[0053] Further, referring to Figure 3 , in an embodiment of the present invention, the pre-stretching film mechanism 30 includes:

[0054] A driving component 31; and

[0055] An adhesive tape component 32. The adhesive tape component 32 includes a support frame 321 and an adhesive tape 322 arranged on the support frame 321. The driving component 31 is drivingly connected to the support frame 321 to drive the support frame 321 to move towards the picking and placing component 10 so that the free end of the adhesive tape 322 adheres to the end of the bottom film, or to drive the support frame 321 to move towards the bearing component 20 so that the bottom film is pulled to the bearing component 20.

[0056] In the technical solution adopted in this embodiment, the pre-stretching film mechanism 30 may further include a driving component 31 and an adhesive tape component 32. The adhesive tape component 32 may include a support frame 321 and an adhesive tape 322. In this embodiment, the driving component 31 may adopt a servo motor. The support frame 321 may be made of metal materials such as stainless steel and iron, with a certain load-bearing capacity, and can provide a supporting effect. The adhesive tape 322 is arranged on the support frame 321 and has adhesiveness, and can easily adhere to the surface of the bottom film. The support frame 321 is drivingly connected to the servo motor. When the product to be torn is at the film tearing position, the servo motor is started, so that the support frame 321 moves towards the picking and placing component 10 so that the free end of the adhesive tape 322 adheres to the end of the bottom film, and then the support frame 321 moves towards the bearing component 20 so that the bottom film is pulled to the bearing component 20, thereby completing the film stretching operation of the bottom film. In this embodiment, the adhesive tape 322 can rotate on the support frame 321, so as to be able to provide a new section of the adhesive tape 322 during film stretching, to ensure adhesiveness and reduce the possibility of the adhesive tape 322 separating from the bottom film during the process of pulling the bottom film.

[0057] Further, referring to Figure 3 , in an embodiment of the present invention, the film separating mechanism 40 includes:

[0058] A sliding member 41, slidably arranged on the bearing component 20; and

[0059] A film separating roller 42, rotatably arranged on the sliding member 41 to slide synchronously with the sliding member 41, and the film separating roller 42 is used to abut against the bottom film.

[0060] In the technical solution adopted in this embodiment, the film separating mechanism 40 may further include a sliding member 41 and a film separating roller 42. The sliding member 41 can slide on the carrying assembly 20. The film separating roller 42 is an ion bar to reduce the influence of static electricity during film tearing. Moreover, the film separating roller 42 is rotatably connected to the sliding member 41, so that when the film separating roller 42 slides synchronously with the sliding member 41, the film separating roller 42 can abut against the bottom film and rotate to reduce the friction between the film separating roller 42 and the bottom film and reduce the generation of static electricity. In this embodiment, the sliding member 41 may be a slider or a sliding bracket, and the slider or the sliding bracket is slidably arranged on the carrying assembly 20. The slider or the sliding bracket can move from one end of the carrying assembly 20 close to the pre-stretching film mechanism 30 to the other end of the carrying assembly 20, so that the film separating roller 42 abuts against the bottom film to complete the separation of the bottom film from the film to be torn mechanism; after the film separating operation is completed, the sliding member 41 slides to the initial film separating position to prepare for a new film separating operation.

[0061] The present utility model also provides a display screen assembly device, and the display screen assembly device includes the film tearing device of each of the above embodiments. For the specific structure of the film tearing device, refer to the above embodiments. Since this display screen assembly device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0062] Further, referring to Figure 1 、 Figure 4 and Figure 5 , in an embodiment of the present utility model, the display screen assembly device further includes a product inlet / outlet and positioning mechanism 60, which is arranged on one side of the bracket 21. The product inlet / outlet and positioning mechanism 60 includes:

[0063] A conveying component 61;

[0064] A support plate 62, the support plate 62 is provided with a through avoidance hole, and the support plate 62 is movably arranged on the conveying component 61;

[0065] A stopper 63, which is arranged on the support plate 62 at the edge of the avoidance hole; and

[0066] A lifting member 64, which is arranged on the conveying component 61;

[0067] Wherein, the output end of the lifting member 64 is used to pass through the avoidance hole to lift and support the target product located on the stopper 63.

[0068] In the technical solution adopted in this embodiment, the display screen assembly device may further include a product entry and exit and positioning mechanism 60, which is arranged on one side of the bracket 21. When the film-tear product to be torn off is finished, the pick-and-place assembly 10 moves the film-tear product to be torn off to the product entry and exit and positioning mechanism 60. It can be understood that the product entry and exit and positioning mechanism 60 may also include a conveying assembly 61, a support plate 62, a blocker 63 and a lifting member 64. An avoidance hole is provided on the support plate 62. In this embodiment, the conveying assembly 61 may be a sprocket or a conveyor belt. When the pick-and-place assembly 10 moves the film-tear product to be torn off to the top of the sprocket or the conveyor belt, the sprocket or the conveyor belt drives the support plate 62 to move with the target product, and aligns the film-tear product to be torn off with the target product for assembly. At the same time, the target product is blocked by the blocker 63 arranged on the edge of the avoidance hole on the support plate 62. The blocker 63 is arranged in a staircase shape, which can prevent the target product from connecting the plates. The lifting member 64 can be a cylinder or a lifting pad. When the sprocket or conveyor belt drives the support plate 62 and the target product to the installation position, the target product is lifted by the cylinder or the lifting pad to ensure that the target product is flat after lifting.

[0069] Further, see Figure 4 In one embodiment of the utility model, the display screen assembly device also includes a visual positioning mechanism 70, which is movably disposed above the conveying component 61, and the visual positioning mechanism 70 is used to confirm and identify the position and shape of the target product.

[0070] In the technical solution adopted in this embodiment, by setting up a visual positioning mechanism 70, the position and shape of the target product can be confirmed and judged when the camera and the light source accurately move to the specified position. In this embodiment, the visual positioning mechanism 70 can ensure the fixing of the camera and the light source. At the same time, in order to ensure accurate movement within a certain range, a three-axis servo linear module can be used. The module adopts a screw structure to ensure the repeatability of the visual position. The visual positioning mechanism 70 can meet the photography requirements of products of different sizes. The visual positioning mechanism 70 is separated from the line body to avoid the movement of the double-speed chain line body affecting the visual photography accuracy, and can avoid the movement of the pick-and-place component 10 when the display screen is assembled.

[0071] Further, see Figure 1 , Figure 6 In one embodiment of the present utility model, the display screen assembly device further includes:

[0072] The belt conveyor line 80 is arranged on the side of the support 21 away from the product inlet and outlet and positioning mechanism 60, and is used to convey the product to be torn off; and

[0073] The safety protection mechanism 90 is arranged around the film tearing device, and the safety protection mechanism 90 is provided with an opening.

[0074] In the technical solution adopted in this embodiment, the display screen assembly device further includes a belt conveyor line 80 and a safety protection mechanism 90. The safety protection mechanism 90 is provided with an opening. In this embodiment, the product to be film-torn is conveyed by the provided belt conveyor line 80. The belt conveyor line 80 can be set as one section or multiple sections. Each section of the power belt line can be independently controlled by a motor. The belt of the belt conveyor line 80 needs to have the characteristics of wear resistance, anti-slip and anti-static to avoid electrostatic adsorption with the bottom film. It can be understood that an independent detector is installed on one side of the belt conveyor line 80 so that when the product to be film-torn reaches the designated position, the picking and placing component 10 starts to work. The safety protection mechanism 90 can ensure the stability of the device when each part of the display screen assembly device is running. At the same time, the safety protection mechanism 90 is also provided with an opening to facilitate the conveyance of the product to be film-torn and the target product.

[0075] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A film tearing device, characterized in that, include: A pick-and-place component is used to pick up the product to be torn off; A bearing assembly, arranged below the pick-and-place assembly; A pre-film-stretching mechanism, disposed on one side of the carrying component, for pulling the end of the bottom film of the product to be torn off to the carrying component; as well as The film-removing mechanism is movably arranged on one side of the carrying component and located on the side of the bottom film facing away from the carrying component, and is used for abutting against the bottom film to tear the bottom film off the product to be torn off.

2. The film tearing device according to claim 1, wherein, The bearing assembly comprises: Bracket; A flipping platform, wherein the flipping platform is rotatably disposed on the bracket, and a vacuum suction cup is disposed on the flipping platform to adsorb the detached bottom film on the flipping platform; and A clamping member is arranged on the turning platform and is used for clamping the base film pulled by the pre-film-stretching mechanism.

3. The film tearing device according to claim 2, characterized in that, The pick-and-place assembly comprises: A frame body, arranged on one side of the bracket; a robot arm, the robot arm being rotatably disposed on the frame; and A fixture suction cup is arranged at the end of the robot arm away from the frame.

4. The film tearing device according to claim 2, wherein The film tearing device further comprises a bottom film collecting mechanism, and the bottom film collecting mechanism is arranged below the turning platform.

5. The film tearing device according to claim 1, wherein The pre-film stretching mechanism comprises: drive assembly; and An adhesive tape assembly, the adhesive tape assembly includes a support frame and an adhesive tape arranged on the support frame, the driving assembly and the support frame are drivingly connected to drive the support frame to move toward the pick-and-place assembly so that the free end of the adhesive tape adheres to the end of the base film, or drives the support frame to move toward the bearing assembly so that the base film is pulled to the bearing assembly.

6. The film tearing device according to claim 1, wherein The membrane separation mechanism comprises: A sliding member, slidably disposed on the bearing assembly; and The film-leaving roller is rotatably arranged on the sliding member to slide synchronously with the sliding member, and the film-leaving roller is used to abut against the bottom film.

7. A display screen assembly device, characterized in that, It comprises the film tearing device as described in any one of claims 1 to 6.

8. The display screen assembly device according to claim 7, characterized in that The display screen assembly device also includes a product entry and exit and positioning mechanism, which is arranged on one side of the bracket, and the product entry and exit and positioning mechanism includes: Conveying components; A support plate, wherein the support plate is provided with a through avoidance hole, and the support plate is movably arranged on the conveying assembly; A blocker is provided on the support plate and located at the edge of the avoidance hole; and A lifting member, arranged on the conveying assembly; Wherein, the output end of the lifting member is used to pass through the avoidance hole to lift and support the target product located on the blocker.

9. The display screen assembly device according to claim 8, wherein, The display screen assembly equipment also includes a visual positioning mechanism, which is movably arranged above the conveying component and is used to confirm and identify the position and shape of the target product.

10. The display screen assembly device according to claim 7, characterized in that, The display screen assembly equipment also includes: A belt conveyor line is arranged on a side of the bracket away from the product entry and exit and positioning mechanism, and is used to convey the product to be torn off; and A safety protection mechanism is arranged around the film tearing device and has an opening.

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