Automobile protective film extensibility detection device

Abstract

The utility model discloses an automobile protective film extensibility detection device, which is characterized in that winding drums are respectively and rotatably arranged on two sides of a rack, a driving assembly is arranged on the rack, and the two winding drums are connected through a transmission assembly, so that when only the driving assembly is needed to drive one winding drum to rotate, the other winding drum can be driven to rotate; the transmission assembly can transmit the transmission force to the two winding drums respectively, so that the two winding drums rotate relative to the rack in opposite directions, the extensibility detection operation of the protective film is completed, and meanwhile, under the action of the detection mode, the protective film is ensured to be uniformly stressed in the test process, and the test efficiency is improved. Therefore, the accuracy of extensibility detection is improved. By arranging the limiting assembly on the winding drum, the protective film can be fixed and limited on the winding drum under the action of the limiting assembly, the situation that the protective film slides in the detection process is avoided, and it is ensured that the protective film is evenly stressed; under the action of the driving assembly, the rotating speed and force of the winding drum can be controlled according to actual conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile protective film production, and particularly relates to a device for detecting the extensibility of an automobile protective film. Background Art

[0002] With the development of the automobile industry, automobile protective films are widely used because they can effectively prevent the vehicle surface from being scratched and corroded, and improve the appearance beauty of the vehicle. To ensure the quality of the protective film, the detection of its extensibility becomes particularly important. Extensibility is one of the important indicators to measure the deformation ability of the protective film under the action of external forces, and is directly related to the installation effect and service life of the protective film.

[0003] At present, the detection of the extensibility of most automobile protective films still relies on manual operation. Specifically, during the detection process, it is usually necessary for the operator to manually fix one end of the protective film on the rod, and then observe or measure its elongation by pulling the other end.

[0004] However, this manual fixing method has certain limitations. Since it is difficult to ensure that both ends are evenly stressed manually, during the pulling process, one side of the protective film may be overstressed and the other side may be understressed, thus affecting the accuracy of the test results. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a device for detecting the extensibility of an automobile protective film, which can not only detect the extensibility of the automobile protective film, but also ensure that both ends of the protective film are evenly stressed during operation, and at the same time greatly improve the accuracy of the test results for detecting the extensibility of the protective film.

[0006] To solve the above technical problems, a technical solution adopted by the utility model is:

[0007] A device for detecting the extensibility of an automobile protective film, comprising:

[0008] A frame;

[0009] A reel, rotatably arranged on both sides of the frame, and the two reels rotate in opposite directions, for respectively winding both ends of the protective film on the two reels and performing extensibility operation on the protective film;

[0010] A transmission component, arranged on one side of the frame, with both ends of the transmission component respectively connected to the two reels, and the transmission component is used to drive the reels to rotate in opposite directions;

[0011] A driving component is rotatably arranged on one side of the frame. The driving component is connected to one end of one of the drums. The driving component is used to drive one of the drums to rotate and drive the other drum to rotate through the transmission component;

[0012] A limiting component is arranged on the drum and is used to fixedly limit the protective film on the drum.

[0013] According to some embodiments, an installation cavity is formed in the drum. The limiting component is arranged in the installation cavity. The limiting component includes:

[0014] A limiting plate is slidably arranged in the installation cavity;

[0015] A driving screw is sleeved on the drum. The bottom end of the driving screw extends into the installation cavity and is rotatably connected to the limiting plate;

[0016] A first driving handle is arranged on one side of the top of the driving screw.

[0017] According to some embodiments, a limiting groove is formed on one side of the installation cavity. One end of the limiting plate is slidably embedded in the limiting groove.

[0018] According to some embodiments, the transmission component includes:

[0019] A first belt pulley is arranged at one end of the drum opposite to the driving component;

[0020] An installation frame is arranged on one side of the frame;

[0021] A first mounting plate is arranged on one side of the installation frame;

[0022] A first gear is rotatably arranged on the first mounting plate through a rotating shaft;

[0023] A second gear is rotatably arranged below the first gear through a rotating shaft. The second gear is meshed with the first gear;

[0024] A second belt pulley is arranged on one side of the first gear;

[0025] A third belt pulley is arranged on one side of the second gear;

[0026] A first transmission belt is wound between one of the first belt pulleys and the second belt pulley;

[0027] A second transmission belt is wound between the other first belt pulley and the third belt pulley.

[0028] According to some embodiments, the driving component includes:

[0029] A rotating disk is rotatably provided on the frame and is connected to one end of one of the drums.

[0030] A second driving handle is provided on one side of the rotating disk.

[0031] According to some embodiments, the frame includes:

[0032] A lifting support;

[0033] A second mounting plate is provided on the top of the lifting support;

[0034] Third mounting plates are provided on both sides of the second mounting plate.

[0035] According to some embodiments, the third mounting plate has a U-shaped structure, and the drum is rotatably provided on the third mounting plate.

[0036] According to some embodiments, a scale line is engraved on one side of the third mounting plate, and the driving assembly is provided at the scale line.

[0037] Advantageous effects:

[0038] 1. By rotatably providing drums on both sides of the frame, providing a driving assembly on the frame, and connecting the two drums with a transmission assembly, when only one drum needs to be driven by the driving assembly to rotate, the transmission assembly can transmit this driving force to the two drums respectively, enabling the two drums to rotate relative to the frame in opposite directions, completing the operation of detecting the extensibility of the protective film. At the same time, under such a detection method, it ensures the uniform stress of the protective film during the test, thereby improving the accuracy of the extensibility detection.

[0039] 2. By providing a limiting assembly on the drum, under the action of the limiting assembly, the protective film can be fixedly restricted on the drum, avoiding the situation of the protective film sliding during the detection and ensuring the uniform stress of the protective film.

[0040] 3. Under the action of the driving assembly, the rotation speed and force of the drum can be controlled according to the actual situation to achieve a data comparison, ensuring the fairness of each test.

[0041] Additional aspects and advantages of the utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the utility model. Description of the Drawings

[0042] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0043] Figure 1 Schematic diagram of the present invention;

[0044] Figure 2 is Figure 1 Schematic diagram of the reel, transmission assembly and limit assembly shown in

[0045] Figure 3 is Figure 2 Schematic diagram of the reel and limit assembly shown in

[0046] Figure 4 is Figure 3 Stereoscopic sectional view of the limit assembly shown in

[0047] Figure 5 is Figure 1 Schematic diagram of the frame shown in

[0048] In the figure, 1 is the frame, 11 is the lifting support, 12 is the second mounting plate, 13 is the third mounting plate, 14 is the scale line, 2 is the reel, 21 is the mounting cavity, 22 is the limit groove, 3 is the transmission assembly, 31 is the first pulley, 32 is the mounting bracket, 33 is the first mounting plate, 34 is the first gear, 35 is the second gear, 36 is the second pulley, 37 is the third pulley, 38 is the first transmission belt, 39 is the second transmission belt, 4 is the drive assembly, 41 is the rotating disk, 42 is the second drive handle, 5 is the limit assembly, 51 is the limit plate, 52 is the drive screw, 53 is the first drive handle. Specific embodiments

[0049] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0050] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention.

[0051] In the description of the present utility model, terms such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself, while terms such as "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0052] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0053] Combined with Figures 1 to 5 As shown, an automobile protective film extensibility detection device includes a frame 1, a reel 2, a transmission assembly 3, a drive assembly 4, and a limit assembly 5.

[0054] The reel 2 is rotatably arranged on both sides of the frame 1, and the rotation directions of the two reels 2 are opposite to each other, for respectively winding the two ends of the protective film on the two reels 2 and performing extensibility operations on the protective film; the transmission assembly 3 is arranged on one side of the frame 1, and both ends of the transmission assembly 3 are respectively connected to the two reels 2, and the transmission assembly 3 is used to drive the reels 2 to rotate in opposite directions; the drive assembly 4 is rotatably arranged on one side of the frame 1, the drive assembly 4 is connected to one end of one of the reels 2, and the drive assembly 4 is used to drive one of the reels 2 to rotate and drive the other reel 2 to rotate through the transmission assembly 3; the limit assembly 5 is arranged on the reel 2 for fixing and restricting the protective film on the reel 2.

[0055] Among them, by respectively rotatably arranging the reels 2 on both sides of the frame 1, arranging the drive assembly 4 on the frame 1, and connecting the two reels 2 with the transmission assembly 3, when only the drive assembly 4 drives one of the reels 2 to rotate, the transmission assembly 3 can transmit this driving force to the two reels 2 respectively, so that the two reels 2 rotate in opposite directions relative to the frame 1 to complete the operation of detecting the extensibility of the protective film. At the same time, under such a detection method, it is ensured that the protective film is evenly stressed during the test, thereby improving the accuracy of the extensibility detection; by arranging the limit assembly 5 on the reel 2, under the action of the limit assembly 5, the protective film can be fixed and restricted on the reel 2, avoiding the situation of the protective film sliding during the detection, and ensuring the even stress of the protective film; by the action of the drive assembly 4, the rotation speed and force of the reel 2 can be controlled according to the actual situation to achieve a data comparison, ensuring the fairness of each test.

[0056] When detecting the extensibility of the protective film:

[0057] First, place both ends of the protective film on two reels 2 respectively, and use the limiting component 5 to completely fix the protective film on the two reels 2. Secondly, drive one reel 2 to rotate through the driving component 4. Since the two reels 2 are connected by the transmission component 3, the transmission component 3 will transfer this rotational force to the other reel 2, causing the two reels 2 to rotate in opposite directions. The protective film is stretched between the two reels 2 and is fixed on its reel 2 by the limiting component 5 at the same time. The protective film is evenly stretched between the machine frames 1 to complete the extensibility detection of the protective film. The whole process can be carried out under the control of the rotation speed and force of the driving component 4 to ensure the consistency and fairness of each test.

[0058] Combined with Figure 3 and Figure 4 As shown, an installation cavity 21 is provided on the reel 2, and the limiting component 5 is arranged in the installation cavity 21. The limiting component 5 includes: a limiting plate 51, a driving screw 52 and a first driving handle 53. The limiting plate 51 is slidably arranged in the installation cavity 21; the driving screw 52 is sleeved on the reel 2, and the bottom end of the driving screw 52 extends into the installation cavity 21 and is rotatably connected to the limiting plate 51; the first driving handle 53 is arranged on one side of the top of the driving screw 52. A limiting groove 22 is provided on one side of the installation cavity 21, and one end of the limiting plate 51 is slidably embedded in the limiting groove 22.

[0059] Among them, when placing the protective film on the two reels 2, both ends of the protective film are respectively wound around the limiting plate 51, and the first driving handle 53 is pulled to make the driving screw 52 rotate relative to the reel 2, thereby pushing the limiting plate 51 to move downward along the track of its limiting groove 22 until the protective film is attached to the lower surface of the limiting plate 51 and the installation cavity 21. Rotate the first driving handle 53 in the reverse direction to make the limiting plate 51 move away from the protective film, thereby releasing the protective film; here, under the action of the limiting groove 22, when the driving screw 52 pushes the limiting plate 51 to move downward, the limiting plate 51 will not rotate, and the limiting plate 51 can only move up and down.

[0060] Combined with Figure 2As shown in the figure, the transmission assembly 3 includes: a first pulley 31, a mounting bracket 32, a first mounting plate 33, a first gear 34, a second gear 35, a second pulley 36, a third pulley 37, a first transmission belt 38 and a second transmission belt 39. The first pulley 31 is provided at one end of the reel 2 opposite to the drive assembly 4; the mounting bracket 32 is provided on one side of the frame 1; the first mounting plate 33 is provided on one side of the mounting bracket 32; the first gear 34 is rotatably provided on the first mounting plate 33 through a rotating shaft; the second gear 35 is rotatably provided below the first gear 34 through a rotating shaft, and the second gear 35 meshes with the first gear 34; the second pulley 36 is provided on one side of the first gear 34; the third pulley 37 is provided on one side of the second gear 35; the first transmission belt 38 is wound between one of the first pulleys 31 and the second pulley 36; the second transmission belt 39 is wound between the other first pulley 31 and the third pulley 37.

[0061] Wherein, when the drive assembly 4 drives one of the reels 2 to rotate, the first pulley 31 on the reel 2 transmits power to the second pulley 36 through the first transmission belt 38, thereby driving the first gear 34 to rotate. While the first gear 34 rotates, the second gear 35 meshing with it also rotates. However, since the rotation directions of the two gears, the first gear 34 and the second gear 35, are opposite, the second gear 35 transmits power to the first pulley 31 on the other reel 2 through the third pulley 37 and the second transmission belt 39. Finally, the two reels 2 rotate in opposite directions to achieve uniform stretching of the protective film and complete the detection operation of the extensibility of the protective film.

[0062] Combined with Figure 1 As shown in the figure, the drive assembly 4 includes: a rotating disk 41 and a second drive handle 42. The rotating disk 41 is rotatably provided on the frame 1 and is connected to one end of one of the reels 2; the second drive handle 42 is provided on one side of the rotating disk 41.

[0063] Wherein, after fixing the two ends of the protective film on the two reels 2 respectively, the operator holds the second drive handle 42 and rotates the second drive handle 42. The rotation of the second drive handle 42 drives the rotating disk 41 to rotate. Since the rotating disk 41 is connected to one of the reels 2, the rotation of the rotating disk 41 will drive the reel 2 to rotate. The design of the second drive handle 42 enables the operator to easily control the rotation of the reel 2, facilitating the stretching test of the protective film. The connection between the rotating disk 41 and the reel 2 ensures effective transmission of power to drive the reel 2 to rotate. By manually operating the second drive handle 42, the rotation speed and force of the reel 2 can be adjusted according to needs to meet different test requirements.

[0064] Combined with Figure 1 and Figure 5As shown in the figure, the frame 1 includes: a lifting support 11, a second mounting plate 12, a third mounting plate 13, and a scale line 14. The second mounting plate 12 is provided at the top of the lifting support 11; the third mounting plate 13 is provided on both sides of the second mounting plate 12. The third mounting plate 13 has a U-shaped structure, and a winding drum 2 is rotatably provided on the third mounting plate 13. A scale line 14 is engraved on one side of the third mounting plate 13, and a driving assembly 4 is provided at the scale line 14.

[0065] Among them, the lifting support 11 has a lifting function, so that the height of the entire device can be adjusted according to needs, which is convenient for operation. The design of the scale line 14 enables the operator to accurately measure the stretching length or position of the protective film, improving the accuracy and reliability of the test. Adjust the position of the winding drum 2 according to the scale line 14 to ensure that the protective film is in an appropriate initial position. At the same time, the stretching length or position of the protective film can also be recorded according to the change of the scale line 14.

[0066] The working mode of the present utility model is as follows:

[0067] When the protective film is placed on the two drums 2, the two ends of the protective film are respectively wound around the limit plate 51, and the first driving handle 53 is pulled to make the driving screw 52 rotate relative to the drum 2, thereby pushing the limit plate 51 to move downward along the track of its limit groove 22 until the protective film is attached to the lower surfaces of the limit plate 51 and the installation cavity 21. Then, the first driving handle 53 is rotated in the reverse direction to make the limit plate 51 move away from the protective film, so as to release the protective film. Here, under the action of the limit groove 22, when the driving screw 52 pushes the limit plate 51 to move downward, the limit plate 51 will not rotate, and the limit plate 51 can only move up and down. After the two ends of the protective film are respectively fixed on the two drums 2, the operator holds the second driving handle 42 and rotates the second driving handle 42. The rotation of the second driving handle 42 drives the rotating disk 41 to rotate. The rotating disk 41 is connected to one of the drums 2. Therefore, the rotation of the rotating disk 41 will drive the rotation of this drum 2. The design of the second driving handle 42 enables the operator to easily control the rotation of the drum 2, which is convenient for the tensile test of the protective film. The connection between the rotating disk 41 and the drum 2 ensures the effective transmission of power to drive the rotation of the drum 2. By manually operating the second driving handle 42, the rotation speed and force of the drum 2 can be adjusted according to needs to meet different test requirements. When the rotating disk 41 drives the rotation of one of the drums 2, the first pulley 31 on this drum 2 transmits the power to the second pulley 36 through the first transmission belt 38, thereby driving the rotation of the first gear 34. While the first gear 34 rotates, the second gear 35 meshing with it also rotates. However, since the rotation directions of the two gears, the first gear 34 and the second gear 35, are opposite, the second gear 35 transmits the power to the first pulley 31 on the other drum 2 through the third pulley 37 and the second transmission belt 39. Finally, the two drums 2 rotate in opposite directions to achieve the uniform stretching of the protective film and complete the detection operation of the extensibility of the protective film. When the second driving handle 42 drives the rotating disk 41, the operator can adjust the position of the drum 2 according to the scale line 14 to ensure that the protective film is in an appropriate initial position. At the same time, the stretching length or position of the protective film can also be recorded according to the change of the scale line 14.

[0068] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. An automobile protective film extensibility detection device, characterized in that, Comprising: A frame (1); Two reels (2), rotatably arranged on both sides of the frame (1), and the two reels (2) rotate in opposite directions, for respectively winding two ends of a protective film on the two reels (2) and performing extensibility operations on the protective film; A transmission assembly (3), arranged on one side of the frame (1), with both ends of the transmission assembly (3) respectively connected to the two reels (2), and the transmission assembly (3) is used to drive the reels (2) to rotate in opposite directions; A driving assembly (4), rotatably arranged on one side of the frame (1), the driving assembly (4) is connected to one end of one of the reels (2), and the driving assembly (4) is used to drive one of the reels (2) to rotate and drive the other reel (2) to rotate through the transmission assembly (3); A limiting assembly (5), arranged on the reel (2), for fixing and restricting the protective film on the reel (2).

2. The extensibility detection device for an automobile protective film according to claim 1, wherein: An installation cavity (21) is formed on the reel (2), the limiting assembly (5) is arranged in the installation cavity (21), and the limiting assembly (5) includes: A limiting plate (51), slidably arranged in the installation cavity (21); A driving screw (52), sleeved on the reel (2), with the bottom end of the driving screw (52) extending into the installation cavity (21) and rotatably connected to the limiting plate (51); A first driving handle (53), arranged on one side of the top of the driving screw (52).

3. The extensibility detection device for an automotive protective film according to claim 2, wherein: A limiting groove (22) is formed on one side of the installation cavity (21), and one end of the limiting plate (51) is slidably embedded in the limiting groove (22).

4. The extensibility detection device for an automobile protective film according to claim 1, wherein: The transmission assembly (3) includes: A first pulley (31), arranged at one end of the reel (2) opposite to the driving assembly (4); An installation frame (32), arranged on one side of the frame (1); A first mounting plate (33), arranged on one side of the installation frame (32); A first gear (34), rotatably arranged on the first mounting plate (33) through a rotating shaft; A second gear (35), rotatably arranged below the first gear (34) through a rotating shaft, and the second gear (35) meshes with the first gear (34); A second pulley (36), arranged on one side of the first gear (34); A third pulley (37), arranged on one side of the second gear (35); A first transmission belt (38), wound between one of the first pulleys (31) and the second pulley (36); A second transmission belt (39), wound between the other first pulley (31) and the third pulley (37).

5. The extensibility detection device for an automotive protective film according to claim 1, characterized in that: The driving assembly (4) includes: A rotating disc (41), rotatably arranged on the frame (1) and connected to one end of one of the reels (2); A second driving handle (42), arranged on one side of the rotating disc (41).

6. The extensibility detection device for an automotive protective film according to claim 1 or 5, characterized in that: The frame (1) includes: A lifting support (11); A second mounting plate (12), arranged on the top of the lifting support (11); A third mounting plate (13), arranged on both sides of the second mounting plate (12).

7. An extensibility detection device for an automotive protective film according to claim 6, characterized in that: The third mounting plate (13) has a U-shaped structure, and the winding drum (2) is rotatably arranged on the third mounting plate (13).

8. An automotive protective film extensibility detection device according to claim 7, characterized in that: A scale line (14) is engraved on one side of the third mounting plate (13), and the driving assembly (4) is arranged at the scale line (14).

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