Imd in-mold injection film removing device based on display panel production

Abstract

The application relates to the technical field of IMD (in-mold decoration) injection technology, and particularly relates to an IMD in-mold injection film removing device based on display panel production, which comprises a workbench for supporting a film-coated panel, the workbench is provided with vacuum suction cups for sucking the hard plate of the film-coated panel and a moving module for driving the vacuum suction cups to move linearly, the middle part of the workbench is provided with a lifting support, the lifting support is rotatably provided with symmetrically-arranged sleeves, and the sleeves are provided with clamping pieces for clamping the transparent film of the film-coated panel. After the transparent film of the film-coated panel is clamped by the clamping pieces and rotated, the hard plate of the film-coated panel is horizontally moved by the vacuum suction cups. When a part of the transparent film is still adhered to the hard plate, the clamping pieces and the vacuum suction cups are reset. Finally, only the hard plate is moved to one end of the workbench by the vacuum suction cups, the transparent film is completely torn from the hard plate by the clamping pieces, and the transparent film is not wound on the clamping pieces.

Description

An in-mold injection molding film removal device based on display panel production Technical Field

[0001] This invention relates to the field of in-mold injection molding technology, and more specifically to an in-mold injection molding removal device for display panel production. Background Technology

[0002] In-Mold Decoration (IMD) technology is an advanced molding process that directly integrates decorative patterns or functional films onto the surface of plastic products. It achieves decorative effects by placing a printed film into a mold and then injection molding. It primarily includes three process types: IMR, IML, and IMF. The process integrates film printing, molding, and injection molding, forming a composite structure consisting of a surface-hardened transparent film, an intermediate printed layer, and an injection-molded layer. It is applied in fields such as automotive, consumer electronics, and home appliances.

[0003] In the field of display panels, especially air conditioner display panels, IMD molding technology is often used. This technology can produce display panels with brand logos, achieve high-precision decoration of product appearance, and achieve clear patterns, bright colors, and are not easy to wear or peel off. The specific production process is as follows: produce pre-designed display panel materials, then peel off the transparent protective film on the display panel materials, and then place the flexible display panel material with the transparent protective film peeled off into a mold for injection molding to form the finished display panel.

[0004] Currently, when peeling off the transparent protective film from a display panel, the process typically involves manually pinching one corner of the film and pulling it diagonally. Once the straight line formed by the adhesion between the transparent film and the display panel reaches a certain length, the separated portion of the film is pinched again and pulled further to prevent deformation and breakage when only one corner is pinched. Finally, the film is pulled until it is completely peeled off the display panel. Manually peeling the transparent film is quite cumbersome, creating a need for automated film removal.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to design a device that can automatically remove the transparent film from a panel without requiring manual peeling, thereby addressing the aforementioned shortcomings in the technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an in-mold injection molding film removal device based on display panel production, comprising a worktable supporting the film-coated panel, a vacuum suction cup for adsorbing the rigid plate of the film-coated panel and a moving module for driving the vacuum suction cup to move linearly, a lifting bracket in the middle of the worktable, symmetrically arranged sleeves rotatably mounted on the lifting bracket, and clamping components for clamping the transparent film of the film-coated panel installed inside the sleeves;

[0008] After the transparent film of the film panel is clamped by the clamping device and rotated, the vacuum suction cup moves the rigid plate of the film panel horizontally. When a part of the transparent film is still stuck to the rigid plate, the clamping device and the vacuum suction cup reset. Finally, only the vacuum suction cup moves the rigid plate to one end of the worktable. The transparent film is completely torn off the rigid plate by the clamping device and is not wrapped around the clamping device.

[0009] Preferably, the clamping member includes two long rods, a guide rod fixedly installed at the end of the long rods, and a spring disposed between the guide rod and the sleeve, wherein the guide rod passes through the sleeve and is slidably connected to the sleeve.

[0010] Preferably, the cross-section of the long rod is semi-circular, and two symmetrically arranged transverse grooves are opened on opposite sides of the two long rods, so that a clamping block in the middle and a limiting block at both ends are formed on the long rod.

[0011] Preferably, the film panel on the workbench is inclined, and the direction of movement of one arc-shaped corner of the film panel is on the same straight line as the clamping block.

[0012] Preferably, the moving module includes two positioning blocks fixedly mounted on the worktable, a threaded rod and a positioning rod rotatably mounted on the positioning blocks, a first motor that provides power to the threaded rod, and a moving block threadedly connected to the threaded rod. The moving block is fixedly connected to the vacuum suction cup, and the positioning rod passes through the moving block and is slidably connected to the moving block.

[0013] Preferably, a second motor is installed on the lifting bracket, and a first gear is fixedly installed at the end of the output shaft of the second motor. A second gear fixedly installed outside the sleeve meshes with one side of the first gear.

[0014] Preferably, the lifting support includes a hydraulic module and a mounting bracket with the output end of the hydraulic module fixedly installed. The first motor is fixedly installed on the mounting bracket, and the sleeve is installed through and rotatably on the mounting bracket.

[0015] Preferably, an electric telescopic rod is fixedly installed on the mounting bracket, and a stop rod is fixedly installed at the end of the output shaft of the electric telescopic rod. The end of the stop rod is conical, and a conical hole is opened at the end of the long rod.

[0016] Preferably, two positioning plates are fixedly installed on the worktable. A laser emitter is fixedly installed on one positioning plate, and a laser receiver is installed on the other positioning plate. When the spring is compressed, the laser receiver cannot receive the laser emitted by the laser emitter. When the clamping member clamps the transparent film of the film panel, the guide rod no longer blocks the reception of the laser.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0018] 1. The present invention uses a clamping device to simultaneously clamp the rigid plate with film and the transparent film. Then, the film panel is dragged until the clamping device separates from the rigid plate, so that the clamping device automatically clamps a corner of the transparent film that protrudes a small part from the rigid plate, thus achieving the purpose of automatic clamping of the transparent film. At the same time, it can solve the problem that the transparent film is curled up and it is difficult to clamp the transparent film directly on the side of the rigid plate.

[0019] 2. In this invention, after the transparent film is clamped by the clamping component, the clamping component will rotate on the rigid plate to roll the transparent film. In conjunction with the vacuum suction cup, the rigid plate is moved synchronously, so there is no need to worry about only clamping one corner of the transparent film, which may cause the transparent film to tear when it is being torn, resulting in failure to remove the film.

[0020] 3. At the same time, when the transparent film is removed from the hard plate to a certain distance, the present invention will leave the transparent film and the hard plate to continue to stick at another corner. After the clamping part and the vacuum suction cup drive the transparent film and the hard plate to reset, the vacuum suction cup is used to drive the hard plate from below the clamping part to one end of the worktable, thereby completely removing the transparent film from the hard plate, avoiding the transparent film from getting tangled outside the clamping part and affecting the removal of the film from the next film panel.

[0021] 4. Compared with the existing technology that uses manual film removal, the present invention only requires a robotic arm to place the film-covered panel on the designated position to automatically complete the film removal step, saving manpower and achieving automation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a front view of the present invention;

[0025] Figure 3 is a schematic diagram of the connection between the mobile module and the vacuum suction cup of the present invention;

[0026] Figure 4 is a schematic diagram of the connection between the clamping member and the lifting bracket of the present invention;

[0027] Figure 5 is an enlarged view of part A of the present invention as shown in Figure 4;

[0028] Figure 6 is a simplified schematic diagram of the clamping member of the present invention sliding and clamping on the membrane panel.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Panel with film; 101. Rigid board; 102. Transparent film; 2. Worktable; 3. Vacuum suction cup; 4. Moving module; 401. Positioning block; 402. Threaded rod; 403. Positioning rod; 404. First motor; 405. Moving block; 5. Lifting bracket; 501. Hydraulic module; 502. Mounting bracket; 6. Sleeve; 7. Clamping component; 701. Long rod; 702. Guide rod; 703. Spring; 704. Horizontal groove; 705. Clamping block; 706. Limiting block; 8. Electric telescopic rod; 9. Stop rod; 10. Conical hole; 11. Positioning piece; 12. Laser emitter; 13. Laser receiver; 14. Second motor; 15. First gear; 16. Second gear. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] This invention provides an in-mold injection molding removal device for display panel production, as shown in Figures 1-6. It includes a worktable 2, the top of which is divided into four sections, forming an X-axis channel and a Y-axis channel. Two positioning blocks 401 are installed at the bottom of the worktable 2. A threaded rod 402 and a positioning rod 403 are rotatably mounted between the two positioning blocks 401. A moving block 405, which is slidably connected to the positioning rod 403, is threaded onto the threaded rod 402. A vacuum suction cup 3 is mounted on the moving block 405. Simultaneously, a first motor 404, whose output shaft is fixedly connected to the end of the threaded rod 402, is installed on one side of the positioning block 401. The first motor 404, moving block 405, threaded rod 402, positioning rod 403, and positioning block 401 constitute a moving module 4 that drives the vacuum suction cup 3 to move linearly within the X-axis channel. When the output shaft of the first motor 404 rotates, it drives the threaded rod 402 to rotate. The threaded rod 402, through its threaded connection with the moving block 405, drives the moving block 405 to move along the X-axis, and the moving block 405 drives the vacuum suction cup 3 to move.

[0034] As shown in Figures 3-5, a lifting support 5 is provided at the bottom of the workbench 2, consisting of a hydraulic module 501 and a mounting bracket 502 fixedly installed at the output end of the hydraulic module 501. Both ends of the mounting bracket 502 have sleeves 6 that pass through the center and are rotatably mounted on them. A second gear 16 is fixedly mounted on one of the sleeves 6, and a first gear 15 meshes with the second gear 16. A second motor 14, whose output end is fixedly connected to the first gear 15, is also mounted on the lifting support 5. Two semi-circular cross-section long rods 701 are provided inside both sleeves 6. Guide rods 702 are fixedly mounted at both ends of the outer circumference of the opposite side of the two long rods 701. The guide rods 702 pass through the sleeves 6 and are slidably connected to them. A spring 7 is installed on the guide rod 702 between the long rods 701 and the sleeves 6. 03, Spring 703, Guide rod 702 and Long rod 701 constitute the clamping member 7 for clamping the film panel 1. In order to reduce the friction of the long rod 701 sliding after clamping the film panel 1, we have symmetrically arranged transverse grooves 704 on the opposite side of the long rod 701. The transverse grooves 704 divide the long rod 701 into a clamping block 705 in the middle and a limiting block 706 at both ends. The clamping block 705 contacts the hard plate 101 and the transparent film 102 of the film panel 1. At the same time, since the transparent film 102 will protrude a part when it adheres to the hard plate 101 during the production of the film panel 1, especially at the arc corner of the film panel 1, the film panel 1 is placed at an angle. The moving direction of the arc corner of the film panel 1 is on the same straight line as the clamping block 705.

[0035] As shown in Figures 2 and 5, to ensure that the clamping rod can automatically open and clamp without affecting the winding of the transparent film 102, an electric telescopic rod 8 is fixedly installed on the mounting bracket 502. A stop rod 9 with a conical end is fixedly installed at the end of the output shaft of the electric telescopic rod 8, and a conical hole is opened in the middle of the end where the limiting blocks 706 of the two long rods 701 fit together. When the output shaft of the electric telescopic rod 8 extends, the end of the stop rod 9 will press into the conical hole, opening the two long rods 701. When the output shaft of the electric telescopic rod 8 shortens, the stop rod 9 is pulled out from between the two long rods 701, and the two long rods 701 are pressed against each other under the action of the spring 703. To determine how to move the long rod 701 from the rigid plate 101 of the film panel 1 to the transparent film 102, we fix two positioning plates 11 on the worktable 2. One positioning plate 11 is fixedly installed with a laser emitter 12 and the other with a laser receiver 13. When the stop rod 9 is inserted into the two long rods 701, the guide rod 702 will extend out of the sleeve 6, which will block the laser and prevent the laser receiver 13 from receiving the laser emitted by the laser emitter 12. When the long rod 701 moves from the rigid plate 101 to clamp only the transparent film 102, the guide rod 702 is inserted into the sleeve 6 and will no longer block the laser reception.

[0036] When using this device, the electric telescopic rod 8 drives the stop rod 9 to squeeze the conical hole into the space between the two limiting blocks 706, thereby opening the two long rods 701. At this time, the guide rod 702 blocks the laser reception. Then, the moving module 4 drives the vacuum suction cup 3 to move below the film panel 1, sucking up the rigid plate 101 to move the film panel 1. When the film panel 1 moves a predetermined distance along the X-axis channel, and one of the arc-shaped corners of the film panel 1 is between the two clamping blocks 705, the output shaft of the electric telescopic rod 8 shortens. At this time, the spring 703 pushes the long rods 701 closer to each other, and the two clamping blocks 705 contact the transparent film 102 and the rigid plate 101 respectively. At this time, the guide rod 702 still blocks the laser reception. Then, the moving module 4 drives the film panel 1 to slowly move in the opposite direction along the X-axis channel through the vacuum suction cup 3, simulating the step of manually rubbing the transparent film 102 to prevent some corners of the transparent film 102 from curling up. Directly clamping the transparent film 102 may not be able to clamp it accurately, but after clamping it, rubbing it outward can remove the curled corners. When the transparent film 102 is straightened and the rigid plate 101 separates from the clamping block 705, the spring 703 will push the two clamping blocks 705 to clamp the arc-shaped corner of the transparent film 102 through elastic force. At this time, the guide rod 702 no longer blocks the laser reception. Then, the output shaft of the second motor 14 rotates forward, driving the first gear 15 to rotate forward. The first gear 15 drives the second gear 16 to rotate, and the second gear 16 drives the sleeve 6 to rotate, thereby driving the long rod 701 to rotate. At the same time, the moving module 4 moves synchronously along the X-axis channel in the positive direction. Furthermore, the output shaft of the hydraulic module 501 extends to a certain length, so that the bottom of the circumferential surface of the long rod 701 is at the same height as the surface of the transparent film 102 of the film panel 1. In this way, as the film panel 1 moves, the transparent film 102 will gradually wrap around the long rod 701, and there will be no situation where a corner of the transparent film 102 is directly pulled. Due to the small area of ​​the clamping part, as the length of the part where the transparent film 102 is connected to the rigid plate 101 increases, the adhesive force increases, which will lead to the situation where a corner of the transparent film 102 is torn.

[0037] When the moving module 4 drives the vacuum suction cup 3 to move the film panel 1 a predetermined distance, a corner of the transparent film 102 is still stuck to the rigid plate 101. At this time, the output shaft of the first motor 404 reverses a predetermined number of turns to reset, and the moving module 4 moves in the opposite direction to reset the film panel 1. Then, the moving module 4 moves forward along the X-axis channel again, so that the rigid plate 101 passes under the long rod 701 and continues to move away from the long rod 701, so that the remaining transparent film 102 stuck to the rigid plate 101 is torn off. Then, the moving module 4 drives the vacuum suction cup 3 to reset, and finally the output shaft of the electric telescopic rod 8 extends, which can push the long rod 701 away, so that the clamping block 705 no longer clamps the corner of the transparent film 102. Using the external wind force to blow or suck, the transparent film 102 is removed from between the two clamping blocks 705, completing the automatic separation process of the transparent film 102 and the rigid plate 101 of the film panel 1.

[0038] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. A film removal device for in-mold injection molding based on display panel production, characterized in that: The system includes a worktable (2) supporting the film panel (1), a vacuum suction cup (3) on the worktable (2) for adsorbing the rigid plate (101) of the film panel (1), and a moving module (4) for driving the vacuum suction cup (3) to move linearly. A lifting bracket (5) is located in the middle of the worktable (2), and symmetrically arranged sleeves (6) are rotatably mounted on the lifting bracket (5). A clamping element (7) for clamping the transparent film (102) of the film panel (1) is installed inside the sleeve (6). The film panel (102) is clamped by the clamping element (7). The transparent film (102) is rotated, and at the same time the vacuum suction cup (3) drives the hard plate (101) with the film panel (1) to move horizontally. When a part of the transparent film (102) is still stuck on the hard plate (101), the clamping member (7) and the vacuum suction cup (3) are reset. Finally, only the vacuum suction cup (3) drives the hard plate (101) to move to one end of the worktable (2). The transparent film (102) is completely torn off from the hard plate (101) by the clamping member (7) and the transparent film (102) is not wrapped on the clamping member (7).

2. The in-mold injection molding film removal device for display panel production according to claim 1, characterized in that: The clamping member (7) includes two long rods (701), a guide rod (702) fixedly installed at the end of the long rods (701), and a spring (703) disposed between the guide rod (702) and the sleeve (6). The guide rod (702) passes through the sleeve (6) and is slidably connected to the sleeve (6).

3. The in-mold injection molding film removal device for display panel production according to claim 2, characterized in that: The cross-section of the long rod (701) is semi-circular. Two symmetrically arranged transverse grooves (704) are opened on opposite sides of the two long rods (701). The transverse grooves (704) form a clamping block (705) in the middle and a limiting block (706) at both ends on the long rod (701).

4. The in-mold injection molding film removal device for display panel production according to claim 3, characterized in that: The film panel (1) on the workbench (2) is inclined, and the moving direction of one arc corner of the film panel (1) is on the same straight line as the clamping block (705).

5. The in-mold injection molding film removal device for display panel production according to claim 2, characterized in that: The moving module (4) includes two positioning blocks (401) fixedly installed on the workbench (2), a threaded rod (402) and a positioning rod (403) rotatably installed on the positioning blocks (401), a first motor (404) that provides power to the threaded rod (402), and a moving block (405) threadedly connected to the threaded rod (402). The moving block (405) is fixedly connected to the vacuum suction cup (3), and the positioning rod (403) passes through the moving block (405) and is slidably connected to the moving block (405).

6. The in-mold injection molding film removal device for display panel production according to claim 5, characterized in that: The lifting bracket (5) is equipped with a second motor (14), and a first gear (15) is fixedly installed at the end of the output shaft of the second motor (14). A second gear (16) is fixedly installed outside the sleeve (6) on one side of the first gear (15).

7. The in-mold injection molding film removal device for display panel production according to claim 6, characterized in that: The lifting bracket (5) includes a hydraulic module (501) and a mounting bracket (502) fixedly installed at the output end of the hydraulic module (501). The first motor (404) is fixedly installed on the mounting bracket (502), and the sleeve (6) is installed through and rotatably on the mounting bracket (502).

8. The in-mold injection molding film removal device for display panel production according to claim 7, characterized in that: An electric telescopic rod (8) is fixedly installed on the mounting bracket (502). A stop rod (9) is fixedly installed at the end of the output shaft of the electric telescopic rod (8). The end of the stop rod (9) is conical. A conical hole is opened at the end of the long rod (701).

9. The in-mold injection molding film removal device for display panel production according to claim 2, characterized in that: Two positioning plates (11) are fixedly installed on the worktable (2). A laser emitter (12) is fixedly installed on one positioning plate (11), and a laser receiver (13) is installed on the other positioning plate (11). When the spring (703) is compressed, the laser receiver (13) cannot receive the laser emitted by the laser emitter (12). When the clamping member (7) clamps the transparent film (102) of the film panel (1), the guide rod (702) no longer blocks the reception of the laser.

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