A coating fixing tool for a release film
By designing limiting and tensioning components, and combining electric push rods and a bidirectional screw and worm gear mechanism driven by a motor, the problem of tension and position control in traditional release film coating fixtures is solved, achieving stable fixing and uniform coating of the release film, thus improving coating quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HONGFENG NEW MATERIALS CO LTD
- Filing Date
- 2025-08-23
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional release film coating fixtures have defects in tension adjustment and position control, resulting in poor coating quality and unstable fixing effect, which affects production efficiency.
The system employs limiting and tensioning components, with tension adjusted via an electric push rod. A motor-driven bidirectional lead screw and worm gear mechanism achieve precise limiting and fixing. Combined with spraying and moving components, it ensures that the release film does not shift during transport and that the coating position is accurate.
It effectively prevents the release film from shifting during transportation and moving during coating, ensuring the consistency and uniformity of coating quality, and improving coating quality and production efficiency.
Smart Images
Figure CN224525071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of release film production technology, and in particular to a coating and fixing fixture for release film. Background Technology
[0002] In the production and processing of release film, coating is a crucial step determining its performance and quality. However, traditional release film coating fixtures suffer from numerous problems in practical applications, severely impacting coating quality and production efficiency. Traditional fixtures exhibit significant deficiencies in releasing film tension adjustment. Most lack effective tension adjustment mechanisms, or the adjustment methods are cumbersome and lack precision. During transport, the release film often suffers from unsuitable tension; too loose and it wrinkles, too tight and it easily breaks. Traditional fixtures also lack sufficient control over the lateral position of the release film during transport. Due to the lack of limiting and adjusting structures for release films of different widths, the release film is prone to lateral displacement. Displaced release films cannot be accurately transported to the designated position on the worktable, making precise coordination with subsequent fixing and spraying components difficult, leading to inaccurate coating positions and edge missed coating. The fixing effect of traditional fixtures is also unsatisfactory. The fixing methods are simple and crude, often relying on manual pressing or simple clamps, resulting in uneven and unstable fixing force. During the coating process, the release film is prone to displacement and wrinkling due to the spraying pressure and the tension generated by the moving components, leading to coating position deviation and making it impossible to guarantee uniform coating. This poses a potential quality hazard for subsequent processing. Furthermore, the motion stability of the spraying components in traditional tooling is poor. The unreasonable design of its drive mechanism makes the spraying components prone to speed fluctuations and swaying when moving along the length of the release film. Therefore, we propose a release film coating fixing fixture to solve this problem. Utility Model Content
[0003] The purpose of this invention is to provide a coating and fixing fixture for release film to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A coating fixture for release film includes: a drive roller; a frame is provided on one side of the drive roller; two sets of electric push rods are provided on the top of the frame, the output ends of the two sets of electric push rods are fixedly connected to the frame; tension rollers are rotatably mounted on the inner walls of both sides of the frame; a second drive roller is provided on one side of the tension roller; a worktable is provided on one side of the second drive roller; mounting brackets are fixedly mounted on both sides of the top of the worktable; and a fixing component is provided on one side of each of the two sets of mounting brackets. The fixing component includes: a gear, a rack, and a worm gear; the gear meshes with the rack; and a fixing plate is fixedly mounted on one side of the rack. A pressure plate is fixedly installed at the bottom. A rotating shaft is installed inside the gear. A worm gear is fixedly installed on the outer side of one end of the rotating shaft. The worm gear meshes with a worm. A bracket is provided between the two sets of mounting frames. A spraying assembly is provided on the top inner wall of the bracket. The spraying assembly includes: a water tank. A short pipe is fixedly installed at the bottom of the water tank. A connecting hose is provided at the bottom of the short pipe. A water box is fixedly installed at the bottom of the connecting hose. Multiple spray heads are fixedly installed at the bottom of the water box. Two sets of cylinders are fixedly installed at the top of the bracket. The output ends of the two sets of cylinders are fixedly connected to the water box. A take-up roller is provided on one side of the worktable.
[0006] Preferably, support plates are rotatably mounted on both sides of the transmission roller two. A limiting assembly is provided on the outer side of the transmission roller two. The limiting assembly includes a bidirectional lead screw, with two sets of threaded plates threaded to the outer side of the bidirectional lead screw. A limiting ring is fixedly mounted on the top of each of the two sets of threaded plates. The two sets of limiting rings are slidably sleeved on the outer side of the transmission roller two. The two sets of bidirectional lead screws are rotatably mounted inside the two sets of support plates two. A motor is fixedly mounted on one side of the front support plate. The output shaft of the motor is fixedly connected to the bidirectional lead screw.
[0007] Preferably, the workbench is provided with moving components on both sides, and two sets of short plates are fixed on both sides of the workbench. The moving components include: a threaded rod, which is rotatably installed inside the two sets of short plates located on the front side; a second motor is fixedly installed on one side of the short plate located on the right side of the front end, and the output shaft of the second motor is fixedly connected to the threaded rod; a threaded block is threadedly connected to the outer side of the threaded rod, and the threaded block is fixedly connected to the bracket; a limit rod is fixedly installed inside the two sets of short plates located on the rear side, and a slider is slidably installed on the outer side of the limit rod, and the slider is fixedly connected to the bracket.
[0008] Preferably, two sets of short blocks are fixedly installed on one side of each of the two sets of mounting brackets, and the two sets of rotating shafts are rotatably installed inside the corresponding two sets of short blocks. A square plate is fixedly installed on one side of each of the two sets of short blocks located at the front, and the two sets of worm gears are rotatably installed inside the corresponding two sets of square plates. A motor is fixedly installed on the top of each of the two sets of square plates located at the top, and the output shafts of the two sets of motors are fixedly connected to the corresponding worm gears.
[0009] Preferably, a mounting plate is fixedly installed at the bottom of both sets of threaded plates, and a guide rod is slidably installed inside the two sets of mounting plates. The two ends of the guide rod are respectively fixedly connected to the corresponding support plate. A limit plate is fixedly installed on one side of both sets of mounting frames, and the two sets of limit plates are slidably installed inside the corresponding fixed plates.
[0010] Preferably, the water tank is fixedly installed on the top of the bracket, and an inlet pipe is fixedly installed on the top of the water tank. A pump body is fixedly installed at the bottom of the short pipe, and the bottom end of the pump body is fixedly connected to the connecting hose. Support plates one and two are rotatably installed on both sides of the transmission roller one and the take-up roller, respectively. A motor four is fixedly installed on one side of the support plate two located at the front. The output shaft of the motor four is fixedly connected to the take-up roller. A connecting frame is provided on the outside of the tension roller, and two sets of electric push rods are fixedly installed on the top of the connecting frame.
[0011] In this invention, a release film coating and fixing fixture is provided. By setting a limiting component and a tensioning component, an electric push rod drives a tensioning roller to move up and down via a frame, adjusting the tension of the release film. A motor drives a bidirectional lead screw to rotate, causing two sets of outer threaded plates to slide along a guide rod. The limiting rings at the top of the threaded plates move synchronously outside the transmission roller, adjusting the spacing according to the width of the release film to prevent it from shifting during transport. This allows for tension adjustment of the release film, avoiding wrinkles due to excessive looseness or breakage due to excessive tightness. It ensures the release film remains flat during subsequent coating, providing a foundation for uniform coating and effectively improving coating quality. The spacing between the two sets of limiting rings can be quickly adjusted according to the width of the release film, effectively preventing lateral shift during transport and ensuring accurate delivery to the designated position on the worktable for precise coordination with subsequent fixing and spraying components. This avoids problems such as inaccurate coating position and edge missed coating caused by release film shift, further ensuring the stability of coating quality.
[0012] In this invention, a release film coating and fixing fixture is provided with a spraying component, a moving component, and a fixing component. A third motor drives a worm gear to rotate, and a worm wheel meshing with the worm gear drives a rotating shaft to rotate. A gear on the outside of the rotating shaft rotates accordingly, and a rack meshing with the gear slides along a limiting plate, pushing the fixing plate and the bottom pressure plate downwards to press the edge of the release film firmly onto the worktable, achieving stable fixing during coating. A second motor drives a threaded rod to rotate, and a threaded block drives a support to move along the threaded rod. Simultaneously, a slider slides outside the limiting rod to ensure smooth movement of the support. When the support moves, the coating in the water tank enters the pump body through a short pipe, is transported to the water box through a connecting hose, and finally passes through multiple sets of bottom components. The spray head evenly sprays the coating onto the release film surface, facilitating its fixation. This effectively prevents the release film from shifting or wrinkling during coating due to spray pressure or tension generated by the moving components, ensuring precise coating positioning and providing a solid foundation for uniform coating. The spraying components can move at a constant speed along the length of the release film, avoiding uneven coating thickness and streaks caused by unstable movement, thus guaranteeing coating consistency and improving product quality. The cylinder can drive the water tank to move up and down, flexibly adjusting the distance between the spray head and the release film to precisely control the coating thickness, meeting the coating thickness requirements of different products and expanding the applicability of the tooling. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a coating and fixing fixture for release film proposed in this utility model.
[0014] Figure 2 This is a cross-sectional view of a coating and fixing fixture for a release film proposed in this utility model.
[0015] Figure 3 This is a schematic diagram of the mobile component structure proposed in this utility model;
[0016] Figure 4 This is a schematic diagram of the fixing component structure proposed in this utility model;
[0017] Figure 5 This is a schematic diagram of the limiting component structure proposed in this utility model;
[0018] Figure 6 This is a schematic diagram of the spraying assembly structure proposed in this utility model.
[0019] In the diagram: 1. Drive roller one; 2. Tension roller; 3. Drive roller two; 4. Workbench; 5. Support; 6. Spraying assembly; 601. Water tank; 602. Short pipe; 603. Pump body; 604. Connecting hose; 605. Water box; 606. Spray head; 7. Moving assembly; 701. Threaded rod; 702. Threaded block; 703. Slider; 704. Limiting rod; 8. Fixing assembly; 801. Gear; 802. Rack; 803. Fixing plate; 804. Shaft; 805. Worm gear; 806. Worm; 807. Pressure plate; 808. Limiting plate; 9. Limiting assembly; 901. Bidirectional lead screw; 902. Threaded plate; 903. Limiting ring; 904. Mounting plate; 905. Guide rod; 10. Take-up roller; 11. Electric push rod; 12. Frame; 13. Cylinder. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-6 A coating fixture for release film includes: a drive roller; a frame 12 is provided on one side of the drive roller; two sets of electric push rods 11 are provided on the top of the frame 12, and the output ends of the two sets of electric push rods 11 are fixedly connected to the frame 12; tension rollers 2 are rotatably mounted on the inner walls of both sides of the frame 12; a drive roller 3 is provided on one side of the tension roller 2; a worktable 4 is provided on one side of the drive roller 3; mounting brackets are fixedly mounted on both sides of the top of the worktable 4; and a fixing component 8 is provided on one side of each of the two mounting brackets. The fixing component 8 includes: a gear 801, a rack 802, and a worm gear 806; the gear 801 meshes with the rack 802; a fixing plate 803 is fixedly mounted on one side of the rack 802; and a pressure plate is fixedly mounted on the bottom of the fixing plate 803. A rotating shaft 804 is rotatably mounted inside the plate 807 and gear 801. A worm gear 805 is fixedly mounted on the outer side of one end of the rotating shaft 804. The worm gear 805 meshes with the worm 806. A bracket 5 is provided between the two sets of mounting brackets. A spraying assembly 6 is provided on the inner top wall of the bracket 5. The spraying assembly 6 includes: a water tank 601. A short pipe 602 is fixedly mounted on the bottom of the water tank 601. A connecting hose 604 is provided on the bottom of the short pipe 602. A water box 605 is fixedly mounted on the bottom of the connecting hose 604. Multiple spray heads 606 are fixedly mounted on the bottom of the water box 605. Two sets of cylinders 13 are fixedly mounted on the top of the bracket 5. The output ends of the two sets of cylinders 13 are fixedly connected to the water box 605. A take-up roller 10 is provided on one side of the workbench 4.
[0022] In this embodiment, support plates are rotatably mounted on both sides of the transmission roller 2 3. A limiting assembly 9 is provided on the outer side of the transmission roller 2 3. The limiting assembly 9 includes: a bidirectional lead screw 901, with two sets of threaded plates 902 threadedly connected to the outer side of the bidirectional lead screw 901. Limiting rings 903 are fixedly mounted on the top of each of the two sets of threaded plates 902, and the two sets of limiting rings 903 are slidably sleeved on the outer side of the transmission roller 2 3. The two sets of bidirectional lead screws 901 are rotatably mounted inside the two sets of support plates 2. A motor 1 is fixedly mounted on one side of the front support plate. The output shaft of the motor 1 is fixedly connected to the bidirectional lead screw 901, facilitating the limiting and conveying of the release film. The worktable 4... Movable components 7 are provided on both sides. Two sets of short plates are fixed on both sides of the worktable 4. The movable components 7 include: a threaded rod 701, which is rotatably installed inside the two sets of short plates located on the front side. A motor 2 is fixedly installed on one side of the short plate located on the right side of the front end. The output shaft of the motor 2 is fixedly connected to the threaded rod 701. A threaded block 702 is threadedly connected to the outside of the threaded rod 701. The threaded block 702 is fixedly connected to the bracket 5. A limit rod 704 is fixedly installed inside the two sets of short plates located on the rear side. A slider 703 is slidably installed on the outside of the limit rod 704. The slider 703 is fixedly connected to the bracket 5 to facilitate the movement of the spraying component 6.
[0023] In this embodiment, two sets of short blocks are fixedly installed on one side of each of the two sets of mounting brackets. Two sets of rotating shafts 804 are rotatably installed inside the corresponding two sets of short blocks. Square plates are fixedly installed on one side of each of the two sets of short blocks located at the front. Two sets of worm gears 806 are rotatably installed inside the corresponding two sets of square plates. Motors 3 are fixedly installed on the top of each of the two sets of square plates located at the top. The output shafts of the two sets of motors 3 are fixedly connected to the corresponding worm gears 806 to facilitate the fixation of the release film. Mounting plates 904 are fixedly installed on the bottom of each of the two sets of threaded plates 902. Guide rods 905 are slidably installed inside the two sets of mounting plates 904. The two ends of the guide rods 905 are fixedly connected to the corresponding support plates 2. Limiting plates 808 are fixedly installed on one side of each of the two sets of mounting brackets. Position plates 808 are slidably installed inside corresponding fixed plates 803 to facilitate the stable movement of limit rings 903 and pressure plates 807. Water tank 601 is fixedly installed on the top of bracket 5. Water inlet pipe is fixedly installed on the top of water tank 601. Pump body 603 is fixedly installed at the bottom of short pipe 602. The bottom end of pump body 603 is fixedly connected to connecting hose 604. Support plate 1 and support plate 2 are rotatably installed on both sides of transmission roller 1 and take-up roller 10, respectively. Motor 4 is fixedly installed on one side of support plate 2 at the front. The output shaft of motor 4 is fixedly connected to take-up roller 10. Connecting frame is provided on the outside of tension roller 2. Two sets of electric push rods 11 are fixedly installed on the top of connecting frame to facilitate the rapid spraying of paint from spray head 606 and facilitate the rotation of take-up roller 10.
[0024] In this embodiment, during use, the release film is first conveyed by the transmission roller. The electric push rod 11 drives the tension roller 2 to move up and down through the frame 12 to adjust the tension of the release film. Then, the second transmission roller 3 further conveys it to the worktable 4. At this time, the limiting component 9 is activated: the first motor drives the bidirectional lead screw 901 to rotate, causing the two sets of outer threaded plates 902 to slide along the guide rod 905. The limiting ring 903 at the top of the threaded plate 902 moves synchronously outside the second transmission roller 3, adjusting the spacing according to the width of the release film to prevent the release film from shifting during the conveying process. After the release film reaches the worktable 4, the fixing component 8 starts to work: the third motor drives the worm gear 806 to rotate, and the worm wheel 805 meshing with the worm gear 806 drives the rotating shaft 804 to rotate. The gear 801 outside the rotating shaft 804 rotates accordingly, and the rack 802 meshing with the gear 801 slides along the limiting plate 808. The fixed plate 803 and the bottom pressure plate 807 are pushed down to press the edge of the release film onto the worktable 4, achieving stable fixation during coating. After coating is completed, the motor three rotates in reverse, and the pressure plate 807 rises to release the release film. During the coating process, the moving component 7 drives the spraying component 6 to move along the length of the release film: the motor two drives the threaded rod 701 to rotate, and the threaded block 702 drives the bracket 5 to move along the threaded rod 701. At the same time, the slider 703 slides outside the limit rod 704 to ensure the smooth movement of the bracket 5. When the bracket 5 moves, the paint in the water tank 601 enters the pump body 603 through the short pipe 602 and is transported to the water box 605 through the connecting hose 604. Finally, it is evenly sprayed onto the surface of the release film through multiple sets of spraying heads 606 at the bottom. The cylinder 13 can drive the water box 605 to move up and down and adjust the distance between the spraying head 606 and the release film to control the coating thickness. The coated release film is conveyed to the take-up roller 10 via the other side of the worktable 4. The motor drives the take-up roller 10 to rotate, and the processed release film is rolled up to complete the entire coating process.
[0025] The above provides a detailed description of the coating and fixing fixture for release film provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A coating and fixing fixture for release film, characterized in that, include: A drive roller (1) is provided on one side of the drive roller (1), and two sets of electric push rods (11) are provided on the top of the frame (12). The output ends of the two sets of electric push rods (11) are fixedly connected to the frame (12). Tensioning rollers (2) are rotatably installed on the inner walls of both sides of the frame (12). A drive roller (3) is provided on one side of the tensioning roller (2), and a worktable (4) is provided on one side of the drive roller (3). Mounting brackets are fixedly installed on both sides of the top of the workbench (4). A fixing component (8) is provided on one side of each of the two mounting brackets. The fixing component (8) includes a gear (801), a rack (802), and a worm gear (806). The gear (801) meshes with the rack (802). A fixing plate (803) is fixedly installed on one side of the rack (802). A pressure plate (807) is fixedly installed at the bottom of the fixing plate (803). A rotating shaft (804) is rotatably mounted inside the wheel (801). A worm gear (805) is fixedly mounted on the outer side of one end of the rotating shaft (804). The worm gear (805) meshes with a worm (806). A bracket (5) is provided between the two sets of mounting brackets. A spraying assembly (6) is provided on the top inner wall of the bracket (5). The spraying assembly (6) includes a water tank (601). A short pipe (602) is fixedly mounted on the bottom of the water tank (601). The short pipe (602) is provided with a connecting hose (604) at the bottom, and a water box (605) is fixedly installed at the bottom of the connecting hose (604). Multiple spray heads (606) are fixedly installed at the bottom of the water box (605). Two sets of cylinders (13) are fixedly installed at the top of the bracket (5). The output ends of the two sets of cylinders (13) are fixedly connected to the water box (605). A take-up roller (10) is provided on one side of the workbench (4).
2. The coating and fixing fixture for release film according to claim 1, characterized in that, Support plates are rotatably mounted on both sides of the transmission roller 2 (3). A limit assembly (9) is provided on the outer side of the transmission roller 2 (3). The limit assembly (9) includes: a bidirectional lead screw (901). Two sets of threaded plates (902) are threadedly connected to the outer side of the bidirectional lead screw (901). Limit rings (903) are fixedly mounted on the top of the two sets of threaded plates (902). The two sets of limit rings (903) are slidably sleeved on the outer side of the transmission roller 2 (3). The two sets of bidirectional lead screws (901) are rotatably mounted inside the two sets of support plates 2. A motor 1 is fixedly mounted on one side of the support plate located on the front side. The output shaft of the motor 1 is fixedly connected to the bidirectional lead screw (901).
3. The coating and fixing fixture for release film according to claim 1, characterized in that, The workbench (4) is provided with moving components (7) on both sides. Two sets of short plates are fixed on both sides of the workbench (4). The moving components (7) include: a threaded rod (701). The threaded rod (701) is rotatably installed inside the two sets of short plates located on the front side. A motor II is fixedly installed on one side of the short plate located on the right side of the front end. The output shaft of the motor II is fixedly connected to the threaded rod (701). A threaded block (702) is threadedly connected to the outside of the threaded rod (701). The threaded block (702) is fixedly connected to the bracket (5). A limit rod (704) is fixedly installed inside the two sets of short plates located on the rear side. A slider (703) is slidably installed on the outside of the limit rod (704). The slider (703) is fixedly connected to the bracket (5).
4. The coating and fixing fixture for release film according to claim 1, characterized in that, Two sets of short blocks are fixedly installed on one side of each of the two sets of mounting brackets. The two sets of rotating shafts (804) are rotatably installed inside the corresponding two sets of short blocks. A square plate is fixedly installed on one side of each of the two sets of short blocks located on the front side. The two sets of worm gears (806) are rotatably installed inside the corresponding two sets of square plates. A motor is fixedly installed on the top of each of the two sets of square plates located at the top. The output shafts of the two sets of motors are fixedly connected to the corresponding worm gears (806).
5. The coating and fixing fixture for a release film according to claim 2, characterized in that, The bottom of each of the two sets of threaded plates (902) is fixedly installed with an mounting plate (904). Guide rods (905) are slidably installed inside the two sets of mounting plates (904). The two ends of the guide rods (905) are respectively fixedly connected to the corresponding support plates. Limiting plates (808) are fixedly installed on one side of each of the two sets of mounting frames. The two sets of limiting plates (808) are slidably installed inside the corresponding fixing plates (803).
6. The coating and fixing fixture for a release film according to claim 1, characterized in that, The water tank (601) is fixedly installed on the top of the bracket (5). A water inlet pipe is fixedly installed on the top of the water tank (601). A pump body (603) is fixedly installed at the bottom of the short pipe (602). The bottom end of the pump body (603) is fixedly connected to the connecting hose (604). Support plate 1 and support plate 2 are rotatably installed on both sides of the transmission roller 1 (1) and the winding roller (10). Motor 4 is fixedly installed on one side of the support plate 2 located on the front side. The output shaft of motor 4 is fixedly connected to the winding roller (10). A connecting frame is provided on the outside of the tension roller (2). Two sets of electric push rods (11) are fixedly installed on the top of the connecting frame.