Reflective film wear resistance testing device

Abstract

The utility model relates to the field of material testing equipment, in particular to a reflective film wear resistance testing device which comprises a base, a mounting frame is slidably connected to the base, a first motor is mounted on the side edge of the base, an output shaft of the first motor is connected with a reciprocating lead screw, and the reciprocating lead screw is in threaded connection with the mounting frame. Clamping rollers are rotationally connected to the left side and the right side of the front side of the mounting frame, a gap is formed between the clamping rollers, a fixing frame is connected to the rear side of the mounting frame, a second motor is mounted on the fixing frame, two gears meshed with each other are rotationally connected to the rear side of the mounting frame, and belt pulley sets are arranged between the parts, penetrating through the mounting frame, of the clamping rollers and the matched gears; friction blocks are arranged in the middle of the base. Through cooperation of the clamping roller with the gap, the second motor, the gear and the belt pulley set, the reflective film is uniformly tightened, and the reflective film is matched with the extrusion frame and the rubber mat to form a tight clamping effect, so that stable clamping of the reflective film in the testing process is achieved, and finally the purpose of ensuring the accuracy of test data is achieved.

Description

Technical Field

[0001] This utility model relates to the field of material testing equipment, and in particular to a device for testing the abrasion resistance of reflective film. Background Technology

[0002] Reflective film is a functional material widely used in traffic safety facilities, advertising signage, and architectural decoration. Its main characteristic is its ability to reflect bright light under illumination, thereby improving visibility and safety. Reflective film is typically composed of multiple layers of composite materials, including a reflective layer, an adhesive layer, and a surface protective layer. Because reflective film is frequently exposed to various environmental conditions during use, such as wind, rain, sunlight, and mechanical friction, its abrasion resistance is a crucial indicator of its quality and lifespan. During the production process, abrasion resistance testing of reflective film is a key step to ensure its performance meets standards.

[0003] Currently, common reflective film abrasion resistance testing equipment on the market typically simulates the wear and tear of real-world use by fixing the reflective film and rubbing its surface with a continuously sliding object. This type of equipment usually includes a fixing device to secure the reflective film to a test platform, and an adjustable-pressure friction head to apply pressure to the reflective film surface and perform reciprocating sliding. By setting different pressures and sliding cycles, the abrasion resistance of the reflective film under different conditions can be evaluated.

[0004] However, existing equipment has significant drawbacks in practical use. First, the reflective film is poorly secured, typically using clamps and screws at both ends. This method cannot ensure the reflective film remains completely taut throughout the testing process. Second, during friction, the reflective film is not evenly stressed, easily leading to localized bulges or wrinkles. This not only affects the accuracy of the test results but may also damage the reflective film. Utility Model Content

[0005] To overcome the shortcomings of poor fixation effect, this utility model provides a wear resistance testing device with good fixation effect of reflective film.

[0006] A device for testing the abrasion resistance of reflective film includes a base, a controller mounted on the base, a mounting frame slidably connected to the base, a first motor mounted on the side of the base, a reciprocating lead screw connected to the output shaft of the first motor, the reciprocating lead screw being threadedly connected to the mounting frame, clamping rollers rotatably connected to the left and right sides of the front of the mounting frame, the clamping rollers having a gap in the middle, a fixing frame connected to the rear of the mounting frame, a second motor mounted on the fixing frame, the controller being wiredly connected to both the first motor and the second motor, two meshing gears rotatably connected to the rear of the mounting frame, each clamping roller matching the nearest gear, a pulley set being provided between the clamping roller passing through the mounting frame and the matching gear, and a friction block being provided in the middle of the base.

[0007] As an improvement to the above solution, the mounting bracket is connected to connecting plates on both the left and right sides, and the extrusion frame is slidably connected to the connecting plates. A return spring is sleeved on the extrusion frame, with one end of the return spring connected to the extrusion frame and the other end connected to the connecting plate.

[0008] As an improvement to the above solution, rubber pads are connected to opposite sides of the two extrusion frames, and the rubber pads are in contact with the clamping rollers.

[0009] As an improvement to the above solution, rollers are rotatably connected to both the left and right ends of the top surface of the base.

[0010] As an improvement to the above solution, a protective housing is connected to the rear side of the mounting bracket, and the protective housing covers the gear and the pulley assembly.

[0011] As an improvement to the above solution, the bottom of the base is connected to several anti-slip feet.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By using a slit clamping roller and a second motor, along with gears and pulleys, the reflective film is evenly stretched and, in conjunction with the extrusion frame and rubber pads, forms a tight clamping effect. This ensures stable clamping of the reflective film during the testing process and ultimately guarantees the accuracy of the test data. Attached Figure Description

[0014] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from a second perspective.

[0016] Figure 3 This is a schematic diagram showing the connection relationship between the gear and pulley assembly of this utility model.

[0017] Figure 4 This is a cross-sectional view showing the connection relationship between the mounting bracket and the reciprocating lead screw of this utility model.

[0018] The following are the labels in the diagram: 1. Base, 101. Controller, 2. Mounting bracket, 3. Reciprocating lead screw, 4. First motor, 5. Clamping roller, 6. Fixing bracket, 7. Second motor, 8. Gear, 9. Pulley assembly, 10. Friction block, 11. Connecting plate, 12. Extrusion frame, 13. Return spring, 14. Rubber pad, 15. Roller, 16. Protective housing, 17. Anti-slip feet. Detailed Implementation

[0019] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0020] Example: A device for testing the abrasion resistance of reflective film, such as... Figures 1-4 As shown, the system includes a base 1, a controller 101, a mounting frame 2, a reciprocating lead screw 3, a first motor 4, clamping rollers 5, a fixing frame 6, a second motor 7, gears 8, a pulley set 9, and friction blocks 10. The controller 101 is mounted on the base 1, and the mounting frame 2 is slidably connected to the base 1. A counterweight can be installed in the middle of the upper end of the mounting frame 2 to apply pressure to the reflective film. The first motor 4 is mounted on the side of the base 1, and the output shaft of the first motor 4 is connected to the reciprocating lead screw 3, which is threadedly connected to the mounting frame 2. Clamping rollers 5 are rotatably connected to the left and right sides of the front of the mounting frame 2. A gap is opened in the middle of the clamping rollers 5, and the gap width is... It is very small, only 2-3 sheets thick in width. The mounting frame 2 is connected to the fixing frame 6 at the rear. The fixing frame 6 is equipped with the second motor 7. The controller 101 is wired to both the first motor 4 and the second motor 7. The mounting frame 2 is rotatably connected to two meshing gears 8. One of the gears 8 is connected to the output shaft of the second motor 7. The rear ends of the two clamping rollers 5 pass through the mounting frame 2, and each clamping roller 5 is matched with the nearest gear 8. A pulley group 9 is set between the part of the clamping roller 5 that passes through the mounting frame 2 and the matched gear 8. A friction block 10 is set in the middle of the base 1. The top surface of the friction block 10 is higher than the clamping roller 5.

[0021] like Figure 1 and Figure 2 As shown, it also includes a connecting plate 11, a pressing frame 12 and a return spring 13. The mounting frame 2 is connected to the forward-extending connecting plate 11 on both the left and right sides. The pressing frame 12 is slidably connected to the connecting plate 11. The return spring 13 is sleeved on the pressing frame 12. One end of the return spring 13 is connected to the pressing frame 12 and the other end is connected to the connecting plate 11.

[0022] like Figure 1 and Figure 2 As shown, it also includes a rubber pad 14. The rubber pad 14 is connected to one side of the two extrusion frames 12. The rubber pad 14 is in contact with the clamping roller 5. The soft material of the rubber pad 14 can avoid damage to the surface of the reflective film. At the same time, the friction ensures that the reflective film remains stable during movement, avoiding the impact on the test results due to loosening.

[0023] like Figure 1 and Figure 2 As shown, it also includes rollers 15. Rollers 15 are rotatably connected to both the left and right ends of the top surface of the base 1. The rotation of the rollers 15 reduces the friction between the reflective film and the base 1, ensuring that the reflective film can move smoothly, while avoiding wear or damage to the surface of the reflective film due to sliding friction.

[0024] like Figure 1 and Figure 2 As shown, it also includes a protective housing 16. The protective housing 16 is connected to the rear side of the mounting bracket 2. The protective housing 16 covers the gear 8 and the pulley assembly 9 to prevent dust and foreign objects from entering or accidental contact by personnel, ensuring the normal operation of the transmission components. During testing, the protective housing 16 can effectively extend the service life of the gear 8 and the pulley assembly 9, while improving the safety of the device.

[0025] like Figure 1 and Figure 2 As shown, it also includes anti-slip feet 17. Several anti-slip feet 17 are connected to the bottom of the base 1, which can increase the friction between the base 1 and the ground and prevent the device from shifting due to vibration or movement during the test. This design ensures the stability of the device during operation and avoids affecting the test accuracy due to the slippage of the base 1.

[0026] The two ends of the reflective film are inserted into the gap in the middle of the clamping roller 5. The gap is very narrow, which can tightly clamp the reflective film. Then, the controller 101 turns on the second motor 7, which directly drives a gear 8 to rotate. The gear 8 meshing with it also rotates in the opposite direction. Through two sets of pulleys 9, the two clamping rollers 5 are driven respectively. Thus, the two clamping rollers 5 pull the reflective film simultaneously, making the reflective film taut. Since the top surface of the friction block 10 is higher than the clamping roller 5, the reflective film and the friction block... 10. When the top surface is in contact, turn off the second motor 7 and turn on the first motor 4. The first motor 4 drives the reciprocating screw 3 to rotate, causing the mounting frame 2 to move back and forth on the base 1. The reflective film moves through the two clamping rollers 5 and rubs against the friction block 10. Each time the mounting frame 2 contacts the edge of the base 1, the controller 101 counts once. Set the number of tests to complete the test process. Then, control the second motor 7 to rotate in the opposite direction to loosen the reflective film and remove it from the two clamping rollers 5 to observe the wear.

[0027] Before testing, it is necessary to ensure the surface quality of the friction block 10, and that the reflective film rolls against the rollers 15 at both ends of the top surface of the base 1 without sliding friction. When clamping and tightening the reflective film, the extrusion frame 12 is pulled out to both sides to compress the return spring 13, and the clamping roller 5 rotates smoothly. After the reflective film is tightened, the extrusion frame 12 is released, the return spring 13 rebounds, and pushes the rubber pad 14 to squeeze the reflective film, further ensuring the stability of the reflective film during movement.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retroreflective film abrasion resistance testing apparatus characterized by, The utility model provides a kind of double-sided rubber roller, including base (1), the controller (101) is installed on the base (1), the mounting frame (2) is slidably connected on the base (1), first motor (4) is installed on the side edge of base (1), the output shaft of the first motor (4) is connected with reciprocating screw rod (3), the reciprocating screw rod (3) is screw-connected with the mounting frame (2), the clamping roller (5) is rotatably connected on the left and right sides of the front side of the mounting frame (2), the clamping roller (5) is opened in gap in middle, the fixed frame (6) is connected on the rear side of the mounting frame (2), the second motor (7) is installed on the fixed frame (6), the controller (101) is wiredly connected with the first motor (4) and the second motor (7), the mounting frame (2) rear side rotatably connected with two intermeshing gear (8), every clamping roller (5) is matched with the gear (8) close to it, the clamping roller (5) passes through the part between the mounting frame (2) and matched gear (8) and is provided with pulley set (9), the base (1) is provided with friction block (10) in middle.

2. A retroreflective film abrasion resistance testing device as defined in claim 1, wherein, The connecting plate (11) is connected on the left and right sides of the mounting frame (2), the extrusion frame (12) is slidably connected on the connecting plate (11), the reset spring (13) is sleeved on the extrusion frame (12), one end of the reset spring (13) is connected with the extrusion frame (12), and the other end is connected with the connecting plate (11).

3. A retroreflective film abrasion resistance testing device as defined in claim 2, wherein, The rubber pad (14) is connected on the opposite side of two extrusion frames (12), and the rubber pad (14) is in contact with the clamping roller (5).

4. A retroreflective film abrasion resistance testing apparatus as defined in claim 3, wherein, The top surface of the base (1) is rotatably connected with the roller (15) on the left and right ends.

5. A retroreflective film abrasion resistance testing apparatus as defined in claim 4, wherein, The mounting frame (2) rear side is connected with protective shell (16), and the protective shell (16) covers the gear (8) and the pulley set (9).

6. A retroreflective film abrasion resistance testing apparatus as defined in claim 5, wherein, The base (1) bottom is connected with a plurality of antiskid foot (17).

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