A quick roll-changing protective film raw material unwinding structure

Abstract

This utility model relates to the field of protective film processing technology and discloses a quick-change unwinding structure for protective film raw materials. It includes a support base plate, a motor fixedly connected to the top rear side of the support base plate, a bevel gear one fixedly connected to the output end of the motor, a bevel gear two meshing with the top of the bevel gear one, a threaded rod threadedly connected to the middle of the bevel gear two, a mounting block threadedly connected to the middle of the outer wall of the threaded rod, a sliding plate rotatably connected to the top of the threaded rod, and sliding blocks fixedly connected to both the left and right sides of the sliding plate. In this utility model, after the motor is started, bevel gears one and two rotate sequentially, driving the threaded rod to rotate, which in turn pushes the sliding plate to move. The movement of the sliding plate causes push bars two and three to rotate, ultimately causing the moving support block to move within the fixed support block, realizing the unwinding of protective films of different specifications and enhancing the practicality of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of protective film processing technology, and in particular to a quick-change protective film raw material unwinding structure. Background Technology

[0002] Protective film is a functional film made from a specific plastic film as the base material through a special adhesive coating process. Its main function is to protect the surface of items from scratches, wear, contamination, corrosion, and oxidation damage during production, processing, transportation, storage, and use, thereby maintaining the surface smoothness, aesthetics, and performance of the items and extending their service life. Protective films can be categorized into low-tack, medium-tack, and high-tack films. Low-tack protective films are suitable for products with smooth surfaces and high requirements for residual adhesive; medium-tack protective films have a wider range of applications and are suitable for general surface protection; high-tack protective films are suitable for products with rough surfaces or requiring strong adhesion. Protective films are indispensable materials in the production and sales of electronic products. To better process protective films, a quick-change unwinding structure for the protective film raw material is needed.

[0003] Currently available quick-roll protective film unwinding structures mainly consist of a drive unit, a support frame, and an installation shaft. Furniture surfaces are easily scratched and damaged during processing, transportation, and sales, requiring the use of protective film. However, the expansion mechanism of the quick-installation shaft can malfunction, resulting in abnormal expansion or contraction, making the raw material roll insecurely installed or difficult to disassemble. To solve these problems, existing technologies only select reliable quick-installation shafts to improve their durability and reliability, without improving the processing structure for different specifications of protective film. This results in the equipment being unable to quickly adapt to these changes, requiring a significant amount of time for adjustment and setup when switching to produce different specifications of protective film, failing to meet usage requirements. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick-change protective film raw material unwinding structure, which aims to improve the problem that the existing technology has not improved the processing structure for different specifications of protective film, resulting in the equipment being unable to quickly adapt to these changes, and requiring a lot of time to adjust and set when switching to produce different specifications of protective film.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a quick-change protective film raw material unwinding structure, comprising a support base plate, a motor fixedly connected to the top rear side of the support base plate, a bevel gear one fixedly connected to the output end of the motor, a bevel gear two meshing with the top of the bevel gear one, a threaded rod threadedly connected to the middle of the bevel gear two, an installation block threadedly connected to the middle of the outer wall of the threaded rod, a sliding plate rotatably connected to the top of the threaded rod, sliding blocks fixedly connected to the left and right sides of the sliding plate, a pusher bar one rotatably connected to the rear left and right sides of the installation block, a pusher bar two rotatably connected to the top of the pusher bar one, a pusher bar three rotatably connected to the top of the pusher bar two, a movable support block rotatably connected to the top of the pusher bar three, a fixed support block slidably connected to the outer wall of the movable support block, a rotating block rotatably connected to the top of the movable support block, a support rod fixedly connected to the front side of the rotating block, and a locking mechanism provided on the top of the movable support block for quickly fixing the support rod.

[0006] As a further description of the above technical solution:

[0007] The engaging mechanism includes a sliding groove, inside which a push crossbar is slidably connected. A push block is fixedly connected to the right side of the push crossbar, and a push upright is fixedly connected to the left side of the push crossbar. A locking rod is fixedly connected to the top of the push upright, and limiting slide columns are slidably connected to the upper and lower parts of the left side of the push upright. A spring is fixedly connected to the outer wall of the limiting slide column.

[0008] As a further description of the above technical solution:

[0009] The bottom of the push bar is rotatably connected to a rotating shaft, and a fixing ring is fixedly connected to the rear side of the outer wall of the rotating shaft.

[0010] As a further description of the above technical solution:

[0011] The bottom of the threaded rod is fixedly connected to a limit block, and the top of the support base plate is fixedly connected to an anti-slip block.

[0012] As a further description of the above technical solution:

[0013] A protective shell is fixedly connected to the bottom rear side of the support base plate, and a heat dissipation hole is provided on the rear left side of the protective shell.

[0014] As a further description of the above technical solution:

[0015] A battery is fixedly connected to the bottom left side of the support base plate, and a controller is fixedly connected to the bottom right side of the support base plate.

[0016] As a further description of the above technical solution:

[0017] Anti-slip strips are fixedly connected to the bottom left and right sides of the support base plate, and reflective strips are fixedly connected to the opposite side of the fixed support block.

[0018] As a further description of the above technical solution:

[0019] A fixing block is fixedly connected to the front side of the protective shell, and the top of the fixing block is fixedly connected to the bottom of the supporting base plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, after the motor is started, bevel gears one and two rotate in sequence, driving the threaded rod to rotate, which in turn pushes the sliding plate to move. The movement of the sliding plate causes push bars two and three to rotate, ultimately causing the moving support block to move within the fixed support block, realizing the unwinding of protective films of different specifications and enhancing the practicality of the equipment.

[0022] 2. In this utility model, when in use, pushing the push block causes the crossbar to slide in the sliding groove hole, which in turn moves the upright and the locking rod, compressing the spring. After replacement, the spring force causes the upright and the locking rod to move, engaging the support rod and quickly fixing the support rod, thus improving work efficiency. Attached Figure Description

[0023] Figure 1 A perspective view of the front side of the support base plate of the quick-change protective film raw material unwinding structure proposed in this utility model;

[0024] Figure 2 This utility model provides a diagram of the push crossbar structure for a quick-change protective film raw material unwinding structure.

[0025] Figure 3 This utility model provides a motor structure diagram for a quick-change protective film material unwinding structure.

[0026] Figure 4 This is a diagram illustrating the fixed support block structure of a quick-change protective film raw material unwinding structure proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the support rod structure for a quick-change protective film raw material unwinding structure proposed in this utility model.

[0028] Legend:

[0029] 1. Support base plate; 2. Engaging mechanism; 201. Slide groove hole; 202. Push crossbar; 203. Press block; 204. Push upright; 205. Locking rod; 206. Limiting slide column; 207. Spring; 3. Motor; 4. Bevel gear one; 5. Bevel gear two; 6. Threaded rod; 7. Mounting block; 8. Sliding plate; 9. Sliding block; 10. Push bar one; 11. Push bar two; 12. Push bar three; 13. Moving support block; 14. Fixed support block; 15. Rotating block; 16. Support rod; 17. Rotating shaft; 18. Fixing ring; 19. Limiting block; 20. Protective shell; 21. Heat dissipation hole; 22. Anti-slip block; 23. Battery; 24. Controller; 25. Anti-slip strip; 26. Fixing block; 27. Reflective strip. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a quick-change protective film raw material unwinding structure, including a support base plate 1. A motor 3 is fixedly connected to the top rear side of the support base plate 1. A bevel gear 4 is fixedly connected to the output end of the motor 3. A bevel gear 5 is meshed with the top of the bevel gear 4. A threaded rod 6 is threadedly connected to the middle of the bevel gear 5. A mounting block 7 is threadedly connected to the middle of the outer wall of the threaded rod 6. A sliding plate 8 is rotatably connected to the top of the threaded rod 6. Sliding blocks 9 are fixedly connected to both the left and right sides of the sliding plate 8 to ensure its stability and functionality. The mounting blocks 7 can rotate on both the left and right rear sides. A push bar 10 is connected, and a push bar 2 11 is rotatably connected to the top of the push bar 10. A push bar 3 12 is rotatably connected to the top of the push bar 2 11. A movable support block 13 is rotatably connected to the top of the push bar 3 12. A fixed support block 14 is slidably connected to the outer wall of the movable support block 13 to provide additional support and stability. A rotating block 15 is rotatably connected to the top of the movable support block 13. A support rod 16 is fixedly connected to the front side of the rotating block 15 to achieve the support effect. A locking mechanism 2 is provided on the top of the movable support block 13. The locking mechanism 2 is used to quickly fix the support rod 16.

[0032] Specifically, the top rear side of the support base plate 1 is designed to be fixedly connected to the motor 3. The output end of the motor 3 is fixedly connected to a bevel gear 4. The top of this bevel gear 4 meshes with another bevel gear 5. The middle of the bevel gear 5 is threadedly connected to a threaded rod 6, and the middle of the outer wall of the threaded rod 6 is threadedly connected to a mounting block 7. The top of the threaded rod 6 is designed to rotatably connect to a sliding plate 8. Sliding blocks 9 are fixedly connected to both sides of the sliding plate 8 to ensure its stability and functionality. The rear left and right sides of 7 are designed to be rotatably connected to push bar 10. The top of push bar 10 is rotatably connected to push bar 2 11. The top of push bar 2 11 is rotatably connected to push bar 3 12. The top of push bar 3 12 is rotatably connected to movable support block 13. The outer wall of movable support block 13 is slidably connected to fixed support block 14 to provide additional support and stability. The top of movable support block 13 is rotatably connected to a rotating block 15, and the front side of rotating block 15 is fixedly connected to a support rod 16, thus completing the design of the entire mechanical structure.

[0033] Please see the appendix Figure 2 - Appendix Figure 3 The engaging mechanism 2 includes a sliding groove 201, with a push bar 202 slidably connected inside the sliding groove 201. A push block 203 is fixedly connected to the right side of the push bar 202, allowing the push block 203 to be easily operated. A push rod 204 is fixedly connected to the left side of the push bar 202. This push rod 204 plays a key role in this invention. To further enhance the stability of the structure, a locking rod 205 is fixedly connected to the top of the push rod 204. To ensure precise control of the push rod 204 during use, limit sliding columns 206 are slidably connected to the upper and lower parts of the left side of the push rod 204. These limit sliding columns 206 not only ensure the stable sliding of the push rod 204, but also have springs 207 fixedly connected to their outer walls, ensuring smooth operation and return of each component during operation.

[0034] Specifically, the internal design of the sliding groove 201 is such that a push crossbar 202 can be slidably connected. This push crossbar 202 is specially designed with a button 203 fixedly connected to its right side, making the button 203 easy to operate. The left side of the push crossbar 202 is fixedly connected to a push vertical rod 204. This push vertical rod 204 plays a key role in this invention. To further enhance the stability of the structure, a locking rod 205 is fixedly connected to the top of the push vertical rod 204. To ensure precise control of the push vertical rod 204 during use, limit sliding columns 206 are slidably connected to its upper and lower left sides. These limit sliding columns 206 not only ensure the stable sliding of the push vertical rod 204, but also have springs 207 fixedly connected to their outer walls. The presence of the springs 207 provides the necessary elasticity for the entire device, ensuring the smooth operation and return of each component during operation.

[0035] Please see the appendix Figure 3 - Appendix Figure 4 The bottom of the push bar 10 is rotatably connected to a rotating shaft 17, and a fixing ring 18 is fixedly connected to the rear side of the outer wall of the rotating shaft 17. The bottom of the threaded rod 6 is fixedly connected to a limit block 19 to ensure the stability of the threaded rod 6 during use. The top of the support base plate 1 is fixedly connected to anti-slip blocks 22. These anti-slip blocks 22 can effectively prevent the support base plate 1 from sliding during use, thereby ensuring the safety of use. The bottom rear side of the support base plate 1 is fixedly connected to a protective shell 20. The left rear side of the protective shell 20 is provided with a heat dissipation hole 21, which is conducive to heat dissipation and ensures the stability and durability of the equipment during long-term operation.

[0036] Specifically, the bottom of the push bar 10 is connected to the rotating shaft 17 by rotation, and the rear side of the outer wall of the rotating shaft 17 is fixedly connected to the fixing ring 18. The bottom of the threaded rod 6 is fixedly connected to the limit block 19 to ensure the stability of the threaded rod 6 during use. The top of the support base plate 1 is uniformly fixedly connected to the anti-slip block 22. These anti-slip blocks 22 can effectively prevent the support base plate 1 from sliding during use, thereby ensuring the safety of use. The bottom rear side of the support base plate 1 is also fixedly connected to the protective shell 20. The rear left side of the protective shell 20 is specially provided with heat dissipation holes 21, which is conducive to heat dissipation and ensures the stability and durability of the equipment during long-term operation.

[0037] Please see the appendix Figure 3 - Appendix Figure 5A battery 23 is fixedly connected to the bottom left side of the support base plate 1 to ensure a stable power supply during use. A controller 24 is fixedly connected to the bottom right side of the support base plate 1. The controller 24 controls the operation of the entire device and ensures that it works normally according to the predetermined program. Anti-slip strips 25 are fixedly connected to both the bottom left and right sides of the support base plate 1. These anti-slip strips 25 can effectively prevent the support base plate 1 from sliding on different ground surfaces, thereby ensuring the safety of use. A reflective strip 27 is fixedly connected to the opposite side of the fixed support block 14. The reflective strip 27 is set to improve the visibility of the device in low light environments, thereby avoiding accidents. A fixing block 26 is fixedly connected to the front side of the protective shell 20. The top of the fixing block 26 is fixedly connected to the bottom of the support base plate 1, providing an additional support point for the support base plate 1 and ensuring the stability of the device under various usage conditions.

[0038] Specifically, a battery 23 is fixedly connected to the bottom left side of the support base plate 1 to ensure a stable power supply during use. A controller 24 is fixedly connected to the bottom right side of the support base plate 1. The controller 24 controls the operation of the entire device to ensure it operates normally according to the predetermined program. To increase stability and safety during use, anti-slip strips 25 are fixedly connected to both the bottom left and right sides of the support base plate 1. These anti-slip strips 25 effectively prevent the support base plate 1 from sliding on different surfaces, thus ensuring safety during use. In the design of the fixed support block 14, a reflective strip 27 is fixedly connected to the opposite side. The reflective strip 27 is set to improve the visibility of the device in low-light environments, thereby avoiding accidents. A fixing block 26 is fixedly connected to the front of the protective shell 20, and the top of the fixing block 26 is fixedly connected to the bottom of the support base plate 1. This structural design not only enhances the overall stability of the device but also provides additional support points for the support base plate 1, ensuring the stability of the device under various usage conditions.

[0039] Working principle: When in use, the starting motor 3 outputs power to drive the bevel gear 4 to rotate. The rotation of bevel gear 4 drives the rotation of bevel gear 5, which in turn drives the threaded rod 6 to rotate. The rotation of threaded rod 6 pushes the sliding plate 8 to move under the restriction of the sliding block 9. The movement of sliding plate 8 drives the second push bar 11 to rotate. The rotation of the second push bar 11 drives the third push bar 12 to rotate. The rotation of the third push bar 12 drives the moving support block 13 to move inside the fixed support block 14, thereby realizing the unwinding of protective films of different specifications and improving the practicality of the setup.

[0040] In use, pushing the push block 203 causes the push bar 202 to slide inside the slide groove 201. Pushing the push bar 202 to slide causes the push rod 204 to move. Pushing the push rod 204 to move causes the locking rod 205 to move and compress the spring 207. After replacement, under the elastic force of the spring 207, pushing the push rod 204 to move causes the locking rod 205 to move and engage and fix the support rod 16, thereby achieving quick fixation of the support rod 16 and improving work efficiency.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change protective film raw material unwinding structure, comprising a support base plate (1), characterized in that: A motor (3) is fixedly connected to the top rear side of the support base plate (1). A bevel gear one (4) is fixedly connected to the output end of the motor (3). A bevel gear two (5) is meshed with the top of the bevel gear one (4). A threaded rod (6) is threadedly connected to the middle of the bevel gear two (5). A mounting block (7) is threadedly connected to the middle of the outer wall of the threaded rod (6). A sliding plate (8) is rotatably connected to the top of the threaded rod (6). Sliding blocks (9) are fixedly connected to the left and right sides of the sliding plate (8). A push bar one (10) is rotatably connected to the left and right sides of the rear side of the mounting block (7). A push bar two (11) is rotatably connected to the top of the push bar two (11), a push bar three (12) is rotatably connected to the top of the push bar three (12), a movable support block (13) is rotatably connected to the top of the push bar three (12), a fixed support block (14) is slidably connected to the outer wall of the movable support block (13), a rotating block (15) is rotatably connected to the top of the movable support block (13), a support rod (16) is fixedly connected to the front side of the rotating block (15), and a locking mechanism (2) is provided on the top of the movable support block (13). The locking mechanism (2) is used to quickly fix the support rod (16).

2. The protective film raw material unwinding structure for quick roll changing according to claim 1, characterized in that: The engaging mechanism (2) includes a sliding groove (201), a push bar (202) is slidably connected inside the sliding groove (201), a push block (203) is fixedly connected to the right side of the push bar (202), a push rod (204) is fixedly connected to the left side of the push bar (202), a locking rod (205) is fixedly connected to the top of the push rod (204), and a limiting slide column (206) is slidably connected to the upper and lower parts of the left side of the push rod (204). A spring (207) is fixedly connected to the outer wall of the limiting slide column (206).

3. The protective film raw material unwinding structure for quick roll changing according to claim 1, characterized in that: The bottom of the push bar (10) is rotatably connected to a rotating shaft (17), and a fixing ring (18) is fixedly connected to the rear side of the outer wall of the rotating shaft (17).

4. The protective film raw material unwinding structure for quick roll changing according to claim 1, characterized in that: The bottom of the threaded rod (6) is fixedly connected to a limit block (19), and the top of the support base plate (1) is fixedly connected to an anti-slip block (22).

5. The protective film raw material unwinding structure for quick roll changing according to claim 1, characterized in that: A protective shell (20) is fixedly connected to the bottom rear side of the support base plate (1), and a heat dissipation hole (21) is provided on the left rear side of the protective shell (20).

6. The protective film raw material unwinding structure for quick roll changing according to claim 1, characterized in that: A battery (23) is fixedly connected to the bottom left side of the support base plate (1), and a controller (24) is fixedly connected to the bottom right side of the support base plate (1).

7. The protective film raw material unwinding structure for quick roll changing according to claim 1, characterized in that: Anti-slip strips (25) are fixedly connected to the bottom left and right sides of the support base plate (1), and reflective strips (27) are fixedly connected to the opposite side of the fixed support block (14).

8. The protective film raw material unwinding structure for quick roll changing according to claim 5, characterized in that: The front side of the protective shell (20) is fixedly connected to a fixing block (26), and the top of the fixing block (26) is fixedly connected to the bottom of the supporting base plate (1).

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