TPU (thermoplastic polyurethane) automobile film winding structure

Abstract

The utility model discloses a TPU (thermoplastic polyurethane) automobile film winding structure, which relates to the technical field of automobile film winding, and comprises a fixed frame and a winding rod rotationally arranged in the fixed frame, as well as two protective discs symmetrically arranged on the winding rod in a sliding manner by taking the central vertical line of the winding rod as the center, a plurality of driving gears which are distributed in a circumferential array by taking the circle center of the protection disc as the center are rotationally connected in the protection disc; according to the utility model, the driving gears are matched with the transmission gear ring, so that the synchronous rotation of the plurality of driving gears can be realized, the limiting rack is further accurately driven to move, and the protection disc can be adaptively adjusted along with the increase of the winding thickness of a pasted film, so that the problem of unevenness of a winding plane is effectively avoided, the winding quality of the pasted film is ensured, and meanwhile, the production efficiency is improved. And the winding requirements of films with different thicknesses can be met, the universality and stability of equipment are improved, and the risk that the films are damaged due to poor winding quality is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile film rolling, in particular to a TPU automobile film rolling structure. Background Art

[0002] Car film is a film product that insulates cars from heat and protects them from ultraviolet rays. Car film application has very high requirements on technology and soft and hard conditions, such as a dust-free environment, special equipment, standardized operating procedures, and skilled techniques.

[0003] The existing Chinese patent (publication number: CN219771259U) discloses a TPU automobile film winding structure, including a fixing frame, an inner wall of the fixing frame is fixedly connected to a connecting plate, a side surface of the connecting plate is penetrated and provided with a guide port, the inner wall of the fixing frame is fixedly connected to a mounting seat, the inner wall of the mounting seat is rotatably connected to a winding rod, the side surface of the fixing frame is fixedly connected to a protective plate, the end of the winding rod passes through the side surface of the fixing frame and is located inside the protective plate; the pawl and ratchet in the limiting mechanism of the utility model can limit the winding direction of the winding rod, thereby preventing the winding rod from rotating at will, ensuring that the TPU film rotates more stably during the winding process, and improving the winding efficiency. Under the action of the adjusting mechanism, the two limiting plates can limit film rolls of different sizes, making the TPU film more regular when winding, avoiding skewness, and increasing the practicality of the device.

[0004] The above-mentioned equipment uses a protective plate that can move relative and opposite to each other to clamp the film during the winding process, thereby preventing the film from shifting during the winding process. However, in actual use, the protective radius of the protective plate is not convenient to adjust. As the thickness of the film winding continues to increase, the part that is not squeezed by the protective plate may shift in the winding, affecting the quality of the winding. Utility Model Content

[0005] The purpose of the utility model is to provide a TPU automobile film rolling structure to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a TPU car film rewinding structure, including a fixed frame and a rewinding rod rotatably arranged in the fixed frame, including:

[0007] There are two protective plates, which are symmetrically slidably arranged on the winding rod with the central vertical line of the winding rod as the center, and are used to position the film roll;

[0008] A plurality of driving gears are distributed in a circular array with the center of the protective disk as the center;

[0009] A transmission gear ring is rotatably connected to the protective plate, and the transmission gear ring is meshed with the driving gear to drive multiple driving gears to rotate synchronously;

[0010] A plurality of limiting racks are retractably arranged in the protective disk and meshed with the driving gear. As the driving gear rotates, they perform telescopic movement to adjust the positioning range of the film roll diameter.

[0011] Furthermore, a first mounting plate is connected inside the protective disk, a guide block is connected to one side of the limiting rack, and the guide block is slidably connected to the first mounting plate.

[0012] Furthermore, a mounting strip opening is provided on the protective plate, and the mounting strip opening is adapted to the limiting rack.

[0013] Furthermore, a drive assembly is included, including:

[0014] The mounting shaft is connected to one of the driving gears, a first synchronous wheel is coaxially arranged on one side of the mounting shaft, a second mounting plate is connected to one side of the protective disk, a second synchronous wheel is rotatably arranged on one side of the second mounting plate, a synchronous belt is arranged between the first synchronous wheel and the second synchronous wheel for making the first synchronous wheel and the second synchronous wheel rotate synchronously, and a dual-axis motor for driving the second synchronous wheel to rotate is connected to one side of the fixed frame.

[0015] Furthermore, the driving end of the dual-axis motor is connected to a telescopic driving rod, and the telescopic end of the telescopic driving rod is connected to the second synchronous wheel.

[0016] Furthermore, a mounting opening is provided on one side of the fixing frame, and the size of the mounting opening matches that of the second mounting plate.

[0017] Furthermore, a guide plate is connected to the fixing frame, and a guide strip opening is provided on the guide plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. Through the cooperation of the driving gear and the transmission gear ring, multiple driving gears can rotate synchronously, thereby accurately driving the limit rack to move. As the thickness of the film winding increases, the protective plate can be adaptively adjusted, effectively avoiding the problem of uneven winding surface, ensuring the quality of film winding. At the same time, it can adapt to the winding requirements of films of different thicknesses, improve the versatility and stability of the equipment, and reduce the risk of film damage caused by poor winding quality.

[0020] 2. The dual-axis motor ensures the drive synchronization of the two protective discs, allowing the drive gear to rotate accurately and consistently. This setting realizes the synchronous adjustment of the limit rack, allowing the two protective discs to always maintain coordination during operation, effectively avoiding film winding deviation caused by asynchrony. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a rear view of the utility model;

[0023] Figure 3 This is a rear view of the protective plate in the present utility model;

[0024] Figure 4 This is a front view of the protective plate in the present utility model;

[0025] Figure 5 For this utility model Figure 4 A magnified view of the structure at point A.

[0026] In the figure: 1. Fixed frame; 2. Winding rod; 301. Protective plate; 302. Drive gear; 303. Transmission gear ring; 304. Limit rack; 4. First mounting plate; 5. Guide block; 6. Mounting strip mouth; 701. Mounting shaft; 702. First synchronous wheel; 703. Second mounting plate; 704. Second synchronous wheel; 705. Telescopic drive rod; 706. Dual-axis motor; 8. Guide plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5 The utility model provides a technical solution: a TPU car film rewinding structure, comprising a fixed frame 1 and a rewinding rod 2 rotatably arranged in the fixed frame 1, including:

[0029] There are two protective plates 301, which are symmetrically slidably arranged on the winding rod 2 with the central vertical line of the winding rod 2 as the center, and are used to position the film roll;

[0030] A plurality of driving gears 302 are distributed in a circular array with the center of the protective plate 301 as the center;

[0031] The transmission gear ring 303 is rotatably connected to the protection plate 301, and the transmission gear ring 303 and the driving gear 302 are meshed with each other to drive the multiple driving gears 302 to rotate synchronously;

[0032] A plurality of limiting racks 304 are retractably arranged in the protective plate 301 and meshed with the driving gear 302. As the driving gear 302 rotates, they perform telescopic motion to adjust the diameter positioning range of the film roll.

[0033] It should be noted that the positions of the two protective plates 301 on the winding rod 2 can also be adjusted. Since they are irrelevant to the specific solution of the utility model, they are not drawn. For details, please refer to the prior art (publication number: CN219771259U).

[0034] Preferably, the thickness of the driving gear 302 is greater than the sum of the thicknesses of the limiting rack 304 and the transmission gear ring 303, so as to facilitate driving the transmission gear ring 303 and the limiting rack 304, and the two ends of the winding rod 2 are rotatably connected in the fixed frame 1 through bearings.

[0035] During specific implementation, the film can be rolled up first by using the provided winding rod 2. As the thickness of the roll increases, in order to avoid unevenness on the roll-up surface, one of the driving gears 302 can be rotated to drive the transmission gear ring 303 to rotate. Then, while the transmission gear ring 303 rotates, the remaining driving gears 302 can be driven to rotate synchronously. Then, while the driving gear 302 rotates, the limiting rack 304 can be driven to move synchronously away from the center of the protective disk 301, thereby facilitating the winding of more films and ensuring their quality during winding.

[0036] See Figure 5 A first mounting plate 4 is connected to the inside of the protective plate 301 , and a guide block 5 is connected to one side of the limiting rack 304 , and the guide block 5 is slidably connected to the first mounting plate 4 .

[0037] During specific implementation, the first mounting plate 4 and the guide block 5 can be used in conjunction to provide a certain limiting and guiding effect on the sliding of the limiting rack 304, further improving the stability of the limiting rack 304 during the sliding process.

[0038] See Figure 3 The protective plate 301 is provided with a mounting strip opening 6 , which is matched with the limiting rack 304 .

[0039] During specific implementation, the provided mounting strip opening 6 facilitates the sliding of the limiting rack 304 and provides a sliding track for the limiting rack 304 .

[0040] See Figure 1 and Figure 2 , also includes a drive assembly, including,

[0041] The mounting shaft 701 is connected to one of the driving gears 302. A first synchronous wheel 702 is coaxially arranged on one side of the mounting shaft 701. A second mounting plate 703 is connected to one side of the protective disk 301. A second synchronous wheel 704 is rotatably arranged on one side of the second mounting plate 703. A synchronous belt is arranged between the first synchronous wheel 702 and the second synchronous wheel 704 to make the first synchronous wheel 702 and the second synchronous wheel 704 rotate synchronously. A dual-axis motor 706 is connected to one side of the fixed frame 1 to drive the second synchronous wheel 704 to rotate.

[0042] During specific implementation, the dual-axis motor 706 can synchronously drive the two second synchronous wheels 704 to rotate, and then the synchronous belt can drive the second synchronous wheels 704 and the first synchronous wheels 702 to rotate synchronously, thereby driving the driving gear 302 to rotate. This setting facilitates the synchronous rotation of the driving gears 302 in the two protective plates 301, so that the limiting racks 304 in the two winding rods 2 can achieve the effect of synchronous adjustment.

[0043] See Figure 1 and Figure 2 The driving end of the dual-axis motor 706 is connected to the telescopic driving rod 705 , and the telescopic end of the telescopic driving rod 705 is connected to the second synchronous wheel 704 .

[0044] Specifically, this arrangement facilitates adjustment of the distance between the two protective plates 301 , thereby avoiding a situation in which adjustment of the limit rack 304 is affected after adjusting the distance between the two protective plates 301 .

[0045] See Figure 1 and Figure 2 A mounting opening is provided on one side of the fixing frame 1 , and the size of the mounting opening matches that of the second mounting plate 703 .

[0046] Specifically, this arrangement facilitates the second mounting plate 703 to slide along a specific track within the fixing frame 1 .

[0047] See Figure 1 A guide plate 8 is connected to the fixed frame 1, and a guide strip opening is opened on the guide plate 8.

[0048] Specifically, this arrangement facilitates the guidance and dust removal of the wound film, thereby improving the film winding effect.

[0049] Working principle: When the film needs to be wound:

[0050] First, the film can be rolled up by using the winding rod 2. As the thickness of the film increases, in order to avoid unevenness on the rolling surface, one of the driving gears 302 can be rotated to drive the transmission gear ring 303 to rotate. Then, the transmission gear ring 303 can drive the remaining driving gears 302 to rotate synchronously. Then, the driving gear 302 can drive the limiting rack 304 to move synchronously away from the center of the protective plate 301, thereby facilitating the winding of more film and ensuring the quality of the film during winding.

[0051] The dual-axis motor 706 can be used to synchronously drive the two second synchronous wheels 704 to rotate, and then the synchronous belt can be used to drive the second synchronous wheels 704 and the first synchronous wheels 702 to rotate synchronously, thereby driving the driving gear 302 to rotate. This setting facilitates the synchronous rotation of the driving gears 302 in the two protective plates 301, so that the limiting racks 304 in the two winding rods 2 can achieve the effect of synchronous adjustment.

Claims

1. A TPU car film rewinding structure, comprising a fixed frame (1) and a rewinding rod (2) rotatably arranged in the fixed frame (1), characterized in that: include, There are two protective plates (301) which are symmetrically arranged on the reeling rod (2) with the vertical line of the reeling rod (2) as the center and are used to position the film reel; A plurality of driving gears (302) are distributed in a circular array with the center of the protective plate (301) as the center; A transmission gear ring (303) is rotatably connected to the protection plate (301), and the transmission gear ring (303) and the driving gear (302) are meshed with each other to drive the multiple driving gears (302) to rotate synchronously; A plurality of limiting racks (304) are flexibly arranged in the protective plate (301) and meshedly connected with the driving gear (302). As the driving gear (302) rotates, the limiting racks (304) perform telescopic motion to adjust the diameter positioning range of the film reel.

2. The TPU car film rolling structure according to claim 1, characterized in that: A first mounting plate (4) is connected inside the protective disc (301), a guide block (5) is connected to one side of the limiting rack (304), and the guide block (5) is slidably connected to the first mounting plate (4).

3. The TPU car film rolling structure according to claim 1, wherein: The protective plate (301) is provided with a mounting strip opening (6), and the mounting strip opening (6) is adapted to the position-limiting rack (304).

4. The TPU car film rolling structure according to claim 1, wherein: Also included are drive components, including, A mounting shaft (701) is connected to one of the driving gears (302); a first synchronous wheel (702) is coaxially arranged on one side of the mounting shaft (701); a second mounting plate (703) is connected to one side of the protective disc (301); a second synchronous wheel (704) is rotatably arranged on one side of the second mounting plate (703); a synchronous belt is provided between the first synchronous wheel (702) and the second synchronous wheel (704) for synchronously rotating the first synchronous wheel (702) and the second synchronous wheel (704); and a dual-axis motor (706) for driving the second synchronous wheel (704) to rotate is connected to one side of the fixed frame (1).

5. The TPU car film rolling structure according to claim 4, characterized in that: The driving end of the dual-axis motor (706) is connected to a telescopic driving rod (705), and the telescopic end of the telescopic driving rod (705) is connected to the second synchronous wheel (704).

6. The TPU car film rolling structure according to claim 4, characterized in that: A mounting opening is provided on one side of the fixing frame (1), and the size of the mounting opening and the second mounting plate (703) are adapted to each other.

7. The TPU car film rolling structure according to claim 1, characterized in that: A guide plate (8) is connected inside the fixed frame (1), and a guide strip opening is provided on the guide plate (8).

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