Method and device for recycling PE film for liquid crystal glass

Abstract

This invention discloses a method and apparatus for recycling PE film used in liquid crystal glass. The PE film is moved from a PE support frame to a detection platform, positioning it on the detection surface of the platform to obtain its detection position. The gripping posture of a robotic arm is adjusted according to the detection position. After gripping both ends of one side of the PE film, the robotic arm adjusts its angle to allow the PE film to droop under gravity. After gripping all four corners of the PE film, it is moved into a PE recycling bin. This optimized method for recycling PE film used in liquid crystal glass, by placing the PE film on the detection platform and adjusting its deflection direction before placing it into the recycling bin, ensures that the PE film is neatly stacked and recycled in the bin. This facilitates subsequent reuse of the PE film, eliminates the need for manual intervention, and achieves automated batch recycling, significantly improving recycling efficiency and reducing recycling costs.

Description

Technical Field

[0001] This invention relates to the field of PE film recycling technology for liquid crystal glass, and more particularly to a method and apparatus for recycling PE film for liquid crystal glass. Background Technology

[0002] Currently, driven by market demand, PE film is widely used as a medium to protect the surface of LCD glass from pollution, corrosion, and scratches during production, processing, transportation, storage, and use. With the mass production of large-size LCDs, the required amount of PE film is also increasing. Recyclable PE shrink film is another important trend in PE application development. It is produced through recycling into recycled plastics, which are typical environmentally friendly materials.

[0003] After use, PE film is stacked on PE support frames. However, this haphazard stacking causes misalignment between the multiple layers. Placing the stacked PE film as a whole in the recycling bin is inconvenient for subsequent use and can even result in wrinkles and creases. When recycling PE film from the support frames, it is usually done manually, one by one, to place the film evenly into the recycling bin. However, manual recycling of PE film is prone to secondary pollution, and the success rate is not guaranteed due to the limited skills of the recycling personnel. With the increasing size of LCD substrates, manually recycling one box of PE film requires at least four people, each pulling one corner of the film and placing it in the recycling bin. Furthermore, the stacking of PE film poses a safety hazard and increases the risk of injury. Manual recycling cannot guarantee the large-scale packaging and transportation of such films, and it no longer meets the efficiency requirements of mass production of ultra-thin substrate glass products.

[0004] Manual recycling of PE film results in high labor costs. If the amount to be recycled is large, overtime work is required, making it difficult to control labor costs. Moreover, the recycling success rate and work efficiency cannot be guaranteed due to factors such as the employee's physical condition, mood, work status, and weather temperature. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention proposes a method and apparatus for recycling PE film used in liquid crystal glass.

[0006] The present invention proposes a method for recycling PE film for liquid crystal glass, comprising the following steps:

[0007] S1. Move the PE film from the PE support frame to the testing platform so that the PE film is located on the testing surface of the testing platform, and obtain the testing position of the PE film on the testing surface.

[0008] S2. Adjust the gripping posture of the robot arm according to the detection position of the PE film, and move the PE film into the PE recycling bin by gripping one side of the PE film.

[0009] Preferably, in S2, the step of grasping one side of the PE film by the robotic arm specifically means lifting the PE film by grasping one side of the PE film with the robotic arm, so that the PE film is in a drooping state.

[0010] Preferably, in S2, the step of lifting the PE film by grasping one side of the PE film with a robotic arm to make the PE film hang down is specifically achieved by adsorbing two adjacent corners of the PE film with at least two first gripping suction cups of the robotic arm to make the PE film hang down.

[0011] Before moving the PE film into the PE recycling bin, the other two corners of the PE film are adsorbed by two second gripping suction cups.

[0012] Preferably, moving the PE film into the PE recycling bin specifically involves placing the PE film horizontally and moving it into the PE recycling bin.

[0013] Preferably, in S1, the detection platform detects the detection position of the PE film using an infrared dot matrix.

[0014] Preferably, in S1, the movement of the PE film from the PE support frame to the testing platform is specifically achieved by a robotic arm.

[0015] Preferably, the step of moving the PE film from the PE support frame to the testing platform specifically involves moving the PE film onto the testing platform after it has been adsorbed by the first gripping suction cup of the robotic arm.

[0016] In this invention, the proposed method for recycling PE film for liquid crystal glass involves moving the PE film from a PE support frame to a detection platform, positioning the PE film on the detection surface of the platform, and obtaining the detection position of the PE film on the detection surface. Based on the detection position of the PE film, the gripping posture of a robotic arm is adjusted, and the robotic arm grips one side of the PE film, moving it into a PE recycling bin. This optimized method for recycling PE film for liquid crystal glass, by adjusting the deflection direction of the PE film on the detection platform before placing it into the recycling bin, achieves neat stacking and recycling of the PE film within the recycling bin. This facilitates subsequent reuse of the PE film, and eliminates the need for manual intervention, enabling automated batch recycling, significantly improving recycling efficiency and reducing recycling costs.

[0017] This invention also proposes a PE film recycling device for liquid crystal glass, used to implement the above-mentioned PE film recycling method for liquid crystal glass, comprising:

[0018] A testing platform is used to detect the detection position of the PE film on the testing surface;

[0019] A robotic arm is used to move the PE film from the testing platform to the PE recycling bin.

[0020] PE recycling bin.

[0021] Preferably, the robotic arm includes a robotic arm, a mounting frame, and at least three gripping suction cups. The mounting frame is rotatably mounted on the front end of the robotic arm, and the multiple gripping suction cups are mounted on the mounting frame. The multiple gripping suction cups are located on the same plane perpendicular to the rotation axis of the mounting frame and distributed around the rotation axis of the mounting frame.

[0022] Preferably, the detection platform is equipped with an infrared sensing unit array, and each infrared sensing unit includes an infrared transmitter and an infrared receiver.

[0023] The PE film recycling device for liquid crystal glass proposed in this invention has similar technical effects to the above-mentioned recycling method, so it will not be described in detail here. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of one embodiment of a PE film recycling device for liquid crystal glass proposed in this invention.

[0025] Figure 2 This is a schematic diagram showing the PE film placed on the detection platform in one embodiment of the PE film recycling device for liquid crystal glass proposed in this invention.

[0026] Figure 3 This is a schematic diagram of a PE film recycling device for liquid crystal glass proposed in this invention, showing the gripping suction cup lifting the PE film.

[0027] Figure 4 This is a schematic diagram showing a robotic arm moving a PE film to a PE recycling bin in one embodiment of a PE film recycling device for liquid crystal glass proposed in this invention. Detailed Implementation

[0028] like Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of one embodiment of the PE film recycling device for liquid crystal glass proposed in this invention. Figure 2 This is a schematic diagram showing the PE film placed on the detection platform in one embodiment of the PE film recycling device for liquid crystal glass proposed in this invention. Figure 3 This is a schematic diagram illustrating the gripping suction cup lifting the PE film in one embodiment of the PE film recycling device for liquid crystal glass proposed in this invention. Figure 4 This is a schematic diagram showing a robotic arm moving a PE film to a PE recycling bin in one embodiment of a PE film recycling device for liquid crystal glass proposed in this invention.

[0029] Reference Figure 1 The present invention provides a PE film recycling device for liquid crystal glass, comprising:

[0030] The detection platform 5 is used to detect the detection position of the PE film 10 on the detection surface;

[0031] A robotic arm is used to move the PE film 10 from the inspection platform 5 into the PE recycling bin 6;

[0032] PE recycling bin 6.

[0033] Reference Figure 2-4 The PE film recycling process using the liquid crystal glass PE film recycling device of this embodiment includes the following steps:

[0034] S1. Move the PE film 10 from the PE support frame 1 to the detection platform 5, so that the PE film 10 is located on the detection surface of the detection platform 5, and obtain the detection position of the PE film 10 on the detection surface.

[0035] Specifically, in the design of the testing platform, the testing platform 5 is equipped with an infrared sensing unit array, each infrared sensing unit including an infrared emitter and an infrared receiver. The testing platform 5 detects the detection position of the PE film 10 through an infrared dot matrix. During testing, the specific position of the PE film on the testing surface is determined based on the area and angle of the covered infrared dot matrix.

[0036] S2. Adjust the gripping posture of the robot arm according to the detection position of the PE film 10, and move the PE film 10 into the PE recycling bin 6 by gripping one side of the PE film 10 with the robot arm.

[0037] When gripping one side of the PE film 10 according to the detection position of the PE film 10, the gripping posture of the robot arm is adjusted to accurately find the gripping position.

[0038] Specifically, the step of using a robotic arm to grasp one side of the PE film 10 involves lifting the PE film 10 by grasping one side, causing it to hang downwards. During this process, the PE film unfolds under the influence of gravity, ensuring it is placed in the recycling bin without wrinkles or curling.

[0039] In this embodiment, the proposed method and apparatus for recycling PE film for liquid crystal glass involves moving the PE film from the PE support frame to the detection platform, positioning the PE film on the detection surface of the platform, and obtaining the detection position of the PE film on the detection surface. The gripping posture of the robotic arm is adjusted according to the detection position of the PE film, and the robotic arm grips one side of the PE film, moving it into the PE recycling bin. Through this optimized method for recycling PE film for liquid crystal glass, the robotic arm places the PE film from the PE support frame on the detection platform and adjusts its deflection direction before placing it into the recycling bin, achieving neat stacking and recycling of the PE film within the recycling bin. This facilitates subsequent reuse of the PE film, and eliminates the need for manual intervention, achieving automated batch recycling, significantly improving recycling efficiency and reducing recycling costs.

[0040] In a specific embodiment, the movement of the PE film 10 from the PE support frame 1 to the testing platform 5 can also be achieved by a robotic arm.

[0041] In the specific design of the robotic arm, the robotic arm includes a robotic arm 2, a mounting frame 3, and at least three gripping suction cups 4. The mounting frame 3 is rotatably mounted on the front end of the robotic arm 2. Multiple gripping suction cups 4 are mounted on the mounting frame 3, located on the same plane perpendicular to the rotation axis of the mounting frame 3 and distributed around the rotation axis. Each gripping suction cup includes a first gripping suction cup corresponding to the gripping edge of the PE film and a second gripping suction cup corresponding to the opposite edge of the gripping edge. In actual design, two first gripping suction cups and two second gripping suction cups corresponding to the four corners of the PE film can be set on the mounting frame. Electrostatic suction cups can be used.

[0042] In step S1, moving the PE film 10 from the PE support frame 1 to the testing platform 5 specifically involves using the robotic arm's gripping suction cups to pick up the PE film 10 and then moving it onto the testing platform 5. Since the PE film is uneven when gripped from the triangular support frame, it's difficult for all the gripping suction cups to complete the gripping action; only a portion of the suction cups are needed to complete the gripping.

[0043] In S2, before the robotic arm grasps the PE film, the gripping position of the suction cup can be adjusted by rotating the mounting bracket to ensure that the gripping edge of the PE film is horizontal when it is grasped, thereby ensuring that the free end of the PE film unfolds flat under the action of gravity.

[0044] The process of lifting the PE film 10 by gripping one side with a robotic arm, causing it to hang down, specifically involves using at least two first gripping suction cups of the robotic arm to adhere to two adjacent corners of the PE film 10, thus further unfolding the PE film. Then, before moving the PE film 10 into the PE recycling bin 6, two second gripping suction cups adhere to the other two corners of the PE film 10, maintaining the unfolded state of the PE film when placed into the recycling bin.

[0045] To prevent the PE film from being wrinkled again when placed in the recycling bin, the PE film 10 is placed horizontally when moving it into the PE recycling bin 6.

[0046] The recycling method and recycling apparatus of this embodiment are described in detail below through examples.

[0047] This embodiment proposes a PE film recycling device for liquid crystal glass: it consists of a robotic arm, an infrared sensing platform, and a recycling bin. The robotic arm comprises a robotic arm, a mounting frame, and an electrostatic chuck, performing grasping, lifting, reciprocating, and rotating movements. The electrostatic chuck grasps the PE film using static electricity. The infrared sensing platform consists of an infrared transmitter, a receiver, a filter, an amplifier, a signal processing circuit, and an output interface. The infrared transmitter emits an infrared signal, which is amplified by the amplifier. The filter filters out other wavelengths of light, receiving only infrared light of a specific wavelength. The receiver receives the reflected infrared signal and feeds it back to the signal processing circuit for processing and decoding. The output interface sends the processed signal to the robotic arm's control system. After adjusting its position, the robotic arm grasps and lifts the PE film, completing the PE film recycling process.

[0048] Specifically, the triangular support frame must ensure that both the membrane-retrieving robot and the robotic arm can reach the desired position, and that the recycling of the membrane proceeds at a consistent pace.

[0049] Specifically, the electrostatic chuck can also be replaced with an electrostatic gripper, with timely grasping as the key point. The robotic arm control system completes the adjustment and recycling of the membrane according to the instructions from the infrared transmitter.

[0050] This embodiment proposes a PE film recycling device for liquid crystal glass, consisting of a robotic arm, an infrared sensing platform, and a recycling bin. By relying on the cooperation of these components, large-scale recycling of PE film for liquid crystal glass can be carried out, making it applicable to packaging boxes of various shapes, sizes, and dimensions, thus expanding its applicability, reducing labor costs, and improving work efficiency.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for recycling PE film used in liquid crystal glass, characterized in that, Includes the following steps: S1. Move the PE film (10) from the PE support frame (1) to the detection platform (5) so that the PE film (10) is located on the detection surface of the detection platform (5) and obtain the detection position of the PE film (10) on the detection surface. S2. Adjust the gripping posture of the robot arm according to the detection position of the PE film (10), and move the PE film (10) into the PE recycling bin (6) by gripping one side of the PE film (10) with the robot arm. In S2, the step of grasping one side of the PE film (10) by the robotic arm specifically means that the PE film (10) is lifted by grasping one side of the PE film (10) by the robotic arm, so that the PE film (10) is in a drooping state. In S2, the step of lifting the PE film (10) by grasping one side of the PE film (10) with a robotic arm, so that the PE film (10) is in a drooping state, specifically, the adjacent two corners of the PE film (10) are adsorbed by at least two first gripping suction cups of the robotic arm, so that the PE film (10) is in a drooping state. Before moving the PE film (10) into the PE recycling bin (6), the other two corners of the PE film (10) are adsorbed by two second gripping suction cups; In S1, the detection platform (5) detects the detection position of the PE film (10) by infrared dot matrix detection.

2. The method for recycling PE film for liquid crystal glass according to claim 1, characterized in that, The step of moving the PE film (10) into the PE recycling bin (6) specifically involves placing the PE film (10) horizontally and moving it into the PE recycling bin (6).

3. The method for recycling PE film for liquid crystal glass according to claim 1, characterized in that, In S1, the PE film (10) is moved from the PE support frame (1) to the testing platform (5) by a robotic arm.

4. The method for recycling PE film for liquid crystal glass according to claim 3, characterized in that, The process of moving the PE film (10) from the PE support frame (1) to the testing platform (5) specifically involves using the first gripping suction cup of the robotic arm to pick up the PE film (10) and then moving the PE film (10) to the testing platform (5).

5. A PE film recycling device for liquid crystal glass, used to implement the PE film (10) recycling method for liquid crystal glass according to any one of claims 1-4, characterized in that, include: The detection platform (5) is used to detect the detection position of the PE film (10) on the detection surface; A robotic arm is used to move the PE film (10) from the testing platform (5) into the PE recycling bin (6); PE recycling bin (6); The robotic arm includes a robotic arm (2), a mounting frame (3) and at least three gripping suction cups (4). The mounting frame (3) is rotatably mounted on the front end of the robotic arm (2). Multiple gripping suction cups (4) are mounted on the mounting frame (3). The multiple gripping suction cups (4) are located on the same plane perpendicular to the axis of rotation of the mounting frame (3) and distributed around the axis of rotation of the mounting frame (3). The detection platform (5) is equipped with an infrared sensing unit array, and each infrared sensing unit includes an infrared transmitter and an infrared receiver.

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