Automobile film puncture resistance test device

Abstract

The utility model relates to the technical field of automobile film testing, in particular to an automobile film puncture resistance testing device which comprises a supporting frame, a lifting assembly, a supporting assembly and an adjusting assembly. The lifting assembly is installed on the top of the supporting frame and extends towards the bottom end of the supporting frame, and conveying assemblies used for pressing, fixing and transporting the automobile film in the puncture test state are arranged on the two sides of the bottom end of the lifting assembly and the two sides of the bottom end of the supporting frame. The adjusting assembly is arranged in the middle of the bottom end of the lifting assembly. Pressure is applied to the automobile film through the conveying assembly, the automobile film is fixed below the puncture needle, meanwhile, the adjusting assembly drives the puncture needle to move downwards to puncture the automobile film, after a puncture test, the conveying assembly drives the automobile film to be conveyed, a puncture point moves towards one side of the puncture needle, and the automobile film is fixed. The puncture needle is prevented from repeatedly puncturing and testing the puncture stretching position, and the accuracy and reliability of the puncture resistance test of the automobile film are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive membrane testing technology, specifically to an automotive membrane puncture resistance testing device. Background Technology

[0002] Puncture resistance testing is used to assess the quality of automotive films during inspection, and it is one method of automotive film inspection. However, puncture resistance testing equipment still has shortcomings, such as:

[0003] Chinese patent document CN219121907U discloses a puncture resistance test assembly for automotive film development. The moving mechanism of this puncture resistance test assembly can drive a puncture needle to puncture at any point on the upper surface of the automotive film in order to obtain the average puncture resistance value of the automotive film, thereby improving the accuracy of the puncture test assembly.

[0004] When the above method is used, the car film will stretch when it is impacted by the puncture needle. By moving the puncture needle on the car film and performing multiple punctures, the puncture needle will puncture the stretched parts of the car film, resulting in deviations in the test results and affecting the accuracy of the test. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing an automotive membrane puncture resistance testing device.

[0006] The technical solution of this utility model is: an automotive membrane puncture resistance testing device, comprising a support frame, a lifting assembly, a support assembly, and an adjustment assembly;

[0007] The lifting assembly is installed on the top of the support frame and extends to the bottom of the support frame. The lifting assembly and the bottom of the support frame are provided with conveying assemblies for pressing, fixing and transporting the automotive film under puncture test conditions.

[0008] The adjustment component is located at the bottom center of the lifting component, and the bottom of the adjustment component is equipped with a puncture needle for puncturing the automotive film under a puncture resistance test.

[0009] The support assembly is located at the bottom center of the lifting assembly and the support frame, and is located outside the puncture needle.

[0010] Preferably, the lifting assembly includes a mounting plate and a second telescopic rod;

[0011] The second telescopic rod is installed at the top of the support frame and its bottom extends to the inside of the support frame;

[0012] The mounting plate is installed at the bottom of the second telescopic rod and sleeved onto the support frame.

[0013] Preferably, the conveying assembly includes a second rotating roller, a transmission component, a first motor, and a pressure roller;

[0014] There are two second rotating rollers, which are respectively arranged on both sides of the bottom end of the support frame and on both sides of the puncture needle.

[0015] The pressure roller is set on one side of the bottom end of the mounting plate and is arranged opposite to the second rotating roller. The pressure roller and the second rotating roller are arranged in a one-to-one correspondence.

[0016] The transmission components are sleeved at the ends of the two second rotating rollers;

[0017] The first motor is mounted on the support frame and is connected to the second rotating roller via a drive system.

[0018] Preferably, the pressure roller includes a connecting shell, a first rotating roller, and a spring;

[0019] The connecting shell is installed at the bottom of the mounting plate and has cavities on both bottom sides;

[0020] The first roller is positioned above the second roller and both ends are inserted into the cavity of the connecting shell.

[0021] The spring is located inside the cavity of the connecting shell and is connected to the first roller.

[0022] Preferably, the adjustment assembly includes a guide rail, a first telescopic rod, a second motor, and a lead screw;

[0023] The guide rail is installed at the bottom of the mounting plate and is arranged along the width of the mounting plate;

[0024] The lead screw is rotatably mounted on the inside of the guide rail and one end extends to the outside of the guide rail;

[0025] The second motor is installed at one end of the guide rail and is connected to the other end of the lead screw for transmission.

[0026] The first telescopic rod is set at the bottom end of the guide rail and sleeved on the outside of the lead screw.

[0027] Preferably, the top end of the first telescopic rod is provided with a slider, and the bottom end of the guide rail is provided with a groove. When the first telescopic rod and the guide rail are installed together, the slider is accommodated in the groove of the guide rail.

[0028] Preferably, the support assembly includes a pressure plate and a support plate;

[0029] The pressure plate and the support plate are respectively installed at the bottom of the mounting plate and the support frame, and the pressure plate and the support plate are arranged opposite to each other. Both the pressure plate and the support plate have through holes in the middle.

[0030] Preferably, anti-slip pads are provided at the bottom of the pressure plate and the top of the support plate.

[0031] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0032] This invention applies pressure to the automotive film using a conveying component and fixes it below a puncture needle. Simultaneously, an adjusting component moves the puncture needle downward to puncture the automotive film. After the puncture test, the conveying component transports the automotive film, moving the puncture point to one side of the puncture needle. This avoids repeated puncture tests at the puncture stretching point, thus improving the accuracy and reliability of the automotive film's puncture resistance test. Attached Figure Description

[0033] Figure 1-2 All of these are perspective views of one embodiment of the present utility model.

[0034] Figure 3 This is a schematic diagram of the support component structure in one embodiment of the present invention.

[0035] Figure 4 This is an exploded view of the adjustment component structure in one embodiment of the present invention.

[0036] Figure 5 This is a cross-sectional schematic diagram of the pressure roller structure in one embodiment of the present invention.

[0037] Reference numerals in the attached drawings: 1. Support frame; 2. Mounting plate; 3. Connecting shell; 4. First rotating roller; 5. Second rotating roller; 6. Guide rail; 7. First telescopic rod; 8. Pressure plate; 9. Puncture needle; 10. Support plate; 11. Anti-slip pad; 12. Second telescopic rod; 13. Transmission component; 14. First motor; 15. Second motor; 16. Lead screw; 17. Slider; 18. Spring. Detailed Implementation

[0038] Example 1

[0039] like Figure 1-5 As shown, the present invention proposes an automotive membrane puncture resistance testing device, which includes a support frame 1, a lifting assembly, a support assembly, and an adjustment assembly;

[0040] The lifting assembly is installed on the top of the support frame 1 and extends to the bottom of the support frame 1. The lifting assembly and the bottom of the support frame 1 are provided with conveying assemblies for pressing, fixing and transporting the automotive film under puncture test conditions. The conveying component at the bottom of the lifting assembly has an elastic effect.

[0041] The adjustment component is located at the bottom center of the lifting component. The bottom of the adjustment component is provided with a puncture needle 9 for puncturing the automotive film under the puncture resistance test. The tip of the puncture needle 9 and the adjustment component are connected by a sensor (existing technology diagram is only for illustration) for monitoring the puncture force during the puncture resistance test.

[0042] The support assembly is located at the bottom center of the lifting assembly and support frame 1 and is located outside the puncture needle 9.

[0043] In this embodiment, the lifting assembly separates the upper and lower parts of the conveying assembly and the supporting assembly, allowing the automotive film to be placed between them. The lifting assembly then moves the upper part of the conveying assembly downwards, applying pressure to the film and fixing it below the puncture needle 9. Simultaneously, the lifting assembly moves the upper part of the supporting assembly downwards, clamping the film and compressing the upper part of the conveying assembly, increasing the pressure on the film and further improving its fixation. This also ensures more stable placement. The adjusting assembly moves the puncture needle 9 downwards, puncturing the film, while simultaneously moving it upwards, allowing the conveying assembly to transport the film and shifting the puncture point towards the needle 9. This allows for multiple punctures, avoiding punctures caused by stretching the film, thus improving the accuracy and reliability of the puncture resistance test.

[0044] Example 2

[0045] like Figure 1-2 As shown, the present invention proposes an automotive membrane puncture resistance testing device. The difference between this embodiment and the first embodiment is that the lifting assembly includes a mounting plate 2 and a second telescopic rod 12.

[0046] The second telescopic rod 12 is installed at the top of the support frame 1 and extends to the inner side of the support frame 1 at the bottom end. The second telescopic rod 12 is one of a pneumatic telescopic rod, an electric telescopic rod, and a hydraulic cylinder.

[0047] Mounting plate 2 is installed at the bottom of the second telescopic rod 12 and sleeved on the support frame 1.

[0048] In this embodiment, the mounting plate 2 is driven to move in the middle of the support frame 1 by the second telescopic rod 12, so that the mounting plate 2 drives the upper part of the conveying component and the support component and the adjustment component to move up and down synchronously, so as to fix and place the car film.

[0049] Example 3

[0050] like Figure 1-2 As shown, the present invention proposes an automotive film puncture resistance testing device. Compared with the first embodiment, the difference in this embodiment is that the conveying component includes a second rotating roller 5, a transmission component 13, a first motor 14, and a pressure roller.

[0051] There are two second rotating rollers 5, which are respectively arranged on both sides of the bottom end of the support frame 1 and located on both sides of the puncture needle 9. The second rotating roller 5 has a mounting base and is rotatably mounted on the mounting base.

[0052] The pressure roller is set on one side of the bottom end of the mounting plate 2 and is arranged opposite to the second rotating roller 5. The pressure roller and the second rotating roller 5 are arranged in a one-to-one correspondence.

[0053] The transmission component 13 is sleeved at the ends of the two second rollers 5, wherein the transmission component 13 is one of belt drive and chain drive;

[0054] The first motor 14 is mounted on the support frame 1 and is connected to the second rotating roller 5 for transmission.

[0055] In this embodiment, the automotive film is supported by the second rotating roller 5, and the mounting plate 2 drives the pressure roller to move towards the second rotating roller 5. The pressure roller and the second rotating roller 5 work together to apply pressure to the automotive film, fixing the automotive film between the pressure roller and the second rotating roller 5. After the puncture resistance test, the first motor 14 drives one of the second rotating rollers 5 to rotate, and the two second rotating rollers 5 rotate synchronously through the transmission component 13. This causes the automotive film to move towards the side of the puncture needle 9 through the cooperation of the pressure roller and the second rotating roller 5, thereby adjusting the puncture position and improving the accuracy of the test results.

[0056] Example 4

[0057] like Figure 5 As shown, the present invention proposes an automotive film puncture resistance testing device. Compared with embodiment three, the difference in this embodiment is that the pressure roller includes a connecting shell 3, a first rotating roller 4, and a spring 18.

[0058] The connecting shell 3 is installed at the bottom of the mounting plate 2 and has cavities on both bottom sides;

[0059] The first rotating roller 4 is positioned above the second rotating roller 5, and the first rotating roller 4 has a mounting base. The first rotating roller 4 is rotatably mounted on the mounting base, and both ends of the mounting base are inserted into the inner side of the cavity of the connecting shell 3.

[0060] Spring 18 is disposed inside the cavity of connecting shell 3 and connected to the first rotating roller 4. The compressed length of spring 18 is greater than the distance between the upper and lower parts of the support assembly.

[0061] In this embodiment, the position of the first roller 4 is limited by the second roller 5. When the mounting plate 2 drives the connecting shell 3 to move down, the connecting shell 3 exerts pressure on the first roller 4 through the spring 18, so that the first roller 4 presses and fixes the car film on the second roller 5. When the mounting plate 2 drives the upper and lower parts of the support assembly to connect, the connecting shell 3 drives the spring 18 to compress again, which improves the fixing effect of the car film and makes it easier to connect the upper and lower parts of the support assembly.

[0062] Example 5

[0063] like Figure 4 As shown, the present invention proposes an automotive membrane puncture resistance testing device. Compared with the first embodiment, the difference in this embodiment is that the adjustment component includes a guide rail 6, a first telescopic rod 7, a second motor 15, and a lead screw 16.

[0064] The guide rail 6 is installed at the bottom of the mounting plate 2 and is arranged along the width direction of the mounting plate 2;

[0065] The lead screw 16 is rotatably mounted on the inner side of the guide rail 6 and one end extends to the outer side of the guide rail 6;

[0066] The second motor 15 is installed at one end of the guide rail 6 and is connected to one end of the lead screw 16 for transmission.

[0067] The first telescopic rod 7 is located at the bottom end of the guide rail 6 and sleeved on the outside of the lead screw 16. The first telescopic rod 7 is one of a pneumatic telescopic rod, an electric telescopic rod, and a hydraulic cylinder.

[0068] In an optional embodiment, a slider 17 is provided at the top of the first telescopic rod 7 and a groove is provided at the bottom of the guide rail 6. When the first telescopic rod 7 and the guide rail 6 are installed together, the slider 17 is accommodated in the groove of the guide rail 6.

[0069] In this embodiment, the second motor 15 drives the lead screw 16 to rotate inside the lead screw 16, and the guide rail 6 drives the slider 17 to move in the groove of the guide rail 6. The first telescopic rod 7 is adjusted along the width of the support frame 1, and the extension of the first telescopic rod 7 drives the puncture needle 9 to move down, so that the puncture needle 9 can perform puncture tests on different positions of the car film, ensuring that each test point can be accurately stressed, and further optimizing the accuracy and reliability of the test data.

[0070] Example 6

[0071] like Figure 3 As shown, the present invention proposes an automotive membrane puncture resistance testing device. The difference between this embodiment and the first embodiment is that the support assembly includes a pressure plate 8 and a support plate 10.

[0072] The pressure plate 8 and the support plate 10 are respectively installed at the bottom ends of the mounting plate 2 and the support frame 1, and are arranged opposite to each other. Both the pressure plate 8 and the support plate 10 have through holes in their middle sections. The height of the support plate 10 on the support frame 1 can be selected to be greater than or less than the height of the second roller 5 during use, to ensure the automotive film remains taut during puncture tests. By adjusting the height of the support plate 10, uniform tension of the automotive film is ensured at different puncture points.

[0073] In an optional embodiment, anti-slip pads 11 are provided at the bottom of the pressure plate 8 and the top of the support plate 10.

[0074] In this embodiment, the car film is supported by the support plate 10 to ensure that the film surface is flat. At the same time, the pressure plate 8 moves toward the support plate 10 to squeeze the car film, which improves the stability of the car film placement and prevents the car film from becoming loose, thus improving the test results.

[0075] In this invention, the automotive film is placed between the first roller 4 and the second roller 5, and between two anti-slip pads 11. The second telescopic rod 12 drives the mounting plate 2 downwards, which in turn drives the connecting shell 3 and the pressure plate 8 downwards simultaneously. The connecting shell 3, via the spring 18, drives the first roller 4 towards the second roller 5, generating pressure. This causes the first roller 4 to press and fix the automotive film onto the second roller 5. Simultaneously, the pressure plate 8 connects to the support plate 10, causing the connecting shell 3 to compress the spring 18 again, increasing the squeezing force between the first roller 4 and the second roller 5. The support plate 10 supports the automotive film, and the pressure plate 8 presses against it, ensuring a smooth film surface and maintaining tautness during testing. Simultaneously, the second motor 15 drives the lead screw 16 to rotate inside the lead screw 16, and the film is guided by a guide... The guide rail 6 drives the slider 17 to move within the groove of the guide rail 6, adjusting the first telescopic rod 7 along the width of the automotive film. The extension of the first telescopic rod 7 drives the puncture needle 9 downwards, allowing the puncture needle 9 to perform puncture tests at different positions along the width of the automotive film. After the puncture resistance test, the first motor 14 drives a second roller 5 to rotate, and the transmission component 13 synchronously rotates the two second rollers 5. This causes the automotive film to move towards one side of the puncture needle 9 through the cooperation of the first roller 4 and the second roller 5, adjusting the puncture position. The automotive film is then re-fixed through the extension of the second telescopic rod 12, allowing the puncture needle 9 to puncture different positions of the automotive film. This avoids repeated punctures at stretched positions of the automotive film, improving the accuracy and reliability of the automotive film puncture resistance test and increasing the precision of the test results.

[0076] 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 thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automotive film puncture resistance test apparatus characterized by comprising: The support frame (1), the lifting assembly, the supporting assembly and the adjusting assembly are included. The lifting assembly is installed on the top of the support frame (1) and extends to the bottom end of the support frame (1), and the lifting assembly and the two sides of the bottom end of the support frame (1) are provided with conveying assemblies for pressing and fixing the automobile film in the puncture test state and transporting the automobile film. The adjusting assembly is arranged at the middle of the bottom end of the lifting assembly, and the bottom end of the adjusting assembly is provided with a puncture needle (9) for puncturing the automobile film in the puncture test. The supporting assembly is arranged at the middle of the bottom end of the lifting assembly and the support frame (1) and is located outside the puncture needle (9).

2. The automotive film puncture resistance test device of claim 1, wherein, The lifting assembly includes a mounting plate (2) and a second telescopic rod (12). The second telescopic rod (12) is installed at the top end of the support frame (1) and extends to the inner side of the support frame (1) at the bottom end. The mounting plate (2) is installed at the bottom end of the second telescopic rod (12) and is sleeved on the support frame (1).

3. The device of claim 2, wherein, The conveying assembly includes a second rotating roller (5), a transmission member (13), a first motor (14) and a pressing roller. The number of the second rotating rollers (5) is two, and the two second rotating rollers (5) are arranged at the two sides of the bottom end of the support frame (1) and are located at the two sides of the puncture needle (9). The pressing roller is arranged at one side of the bottom end of the mounting plate (2) and is arranged opposite to the second rotating roller (5), and the pressing roller and the second rotating roller (5) are arranged one by one. The transmission member (13) is sleeved on the end portions of the two second rotating rollers (5). The first motor (14) is installed on the support frame (1) and is in transmission connection with the second rotating roller (5).

4. The device of claim 3, wherein, The pressing roller includes a connecting shell (3), a first rotating roller (4) and a spring (18). The connecting shell (3) is installed at the bottom end of the mounting plate (2) and has a cavity at the bottom end of each side. The first rotating roller (4) is arranged above the second rotating roller (5) and is inserted into the inner side of the cavity of the connecting shell (3) at both ends. The spring (18) is arranged in the cavity of the connecting shell (3) and is connected with the first rotating roller (4).

5. The automotive film puncture resistance test device of claim 2, wherein The adjusting assembly includes a guide rail (6), a first telescopic rod (7), a second motor (15) and a lead screw (16). The guide rail (6) is installed at the bottom end of the mounting plate (2) and is arranged along the width direction of the mounting plate (2). The lead screw (16) is rotatably installed at the inner side of the guide rail (6) and extends to the outer side of the guide rail (6) at one end. The second motor (15) is installed at one end of the guide rail (6) and is in transmission connection with one end of the lead screw (16). The first telescopic rod (7) is arranged at the bottom end of the guide rail (6) and is sleeved on the outer side of the lead screw (16).

6. The automotive film puncture resistance test device of claim 5, wherein, The top end of the first telescopic rod (7) is provided with a sliding block (17), and the bottom end of the guide rail (6) is provided with a sliding groove, and in the cooperation installation state of the first telescopic rod (7) and the guide rail (6), the sliding block (17) is accommodated in the sliding groove of the guide rail (6).

7. The automotive film puncture resistance test device of claim 2, wherein The supporting assembly includes a pressing plate (8) and a supporting plate (10). The pressing plate (8) and the supporting plate (10) are respectively installed at the bottom end of the mounting plate (2) and the support frame (1), and the pressing plate (8) and the supporting plate (10) are arranged opposite to each other, and the middle portions of the pressing plate (8) and the supporting plate (10) have through holes.

8. The automotive film puncture resistance test device of claim 7, wherein, The bottom end of the pressing plate (8) and the top end of the supporting plate (10) are provided with anti-skid pads (11).

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