Device for stone impact resistance test of paint film

Abstract

The utility model relates to the technical field of paint film testing, in particular to a device for testing the stone impact resistance of a paint film, which comprises a blanking pipe and a bearing platform positioned below the blanking pipe, the blanking pipe is used for directionally putting stones for testing; the bearing platform comprises a mounting support and a base plate, one end of the base plate is hinged to the mounting support, and the other end of the base plate is connected with the mounting support through a supporting piece. The length of the supporting piece or the connecting position of the supporting piece and the mounting support is adjustable, and the supporting piece is used for simulating stone hit conditions at different angles; the substrate is provided with a U-shaped card slot used for placing a test card. Through the device, the problem that an existing testing device is complex in structure can be effectively solved, and testing is more stable.

Description

Technical Field

[0001] This utility model relates to the field of paint film testing technology, and in particular to a device for testing the stone impact resistance of paint films. Background Technology

[0002] Stone chip resistance of paint film refers to the ability of a paint film to withstand impacts from external forces such as stones. The principle of stone chip resistance testing is to evaluate the abrasion resistance and durability of the paint film by simulating the impact of stones on a vehicle traveling at high speed. A commonly used test method for stone chip resistance is to evaluate the paint film's resistance to stone chips by impacting the paint film surface with a standard steel ball and stones of different weights and speeds.

[0003] In the prior art, Chinese invention patent document with publication number CN115032056A and publication date September 9, 2022, discloses the following technical solution: a paint film impact testing device, including a base, a support box fixedly connected to one side of the base, and a pipe fitting disposed on the support box, with a sliding impact block disposed inside the pipe fitting. The device also includes: a guide groove, which is formed on the pipe fitting and is arranged along the length direction of the pipe fitting, with the length of the guide groove being less than the length of the pipe fitting; a snap-fit ​​assembly, disposed on the base and positioned corresponding to the pipe fitting, the snap-fit ​​assembly including two receiving rollers rotatably disposed on the base, the receiving rollers being located on both sides of the pipe fitting; and a limiting member disposed on the base, the limiting member being used to press the test plate tightly onto the two receiving rollers. A driving structure is also disposed inside the base, the driving structure being used to drive one of the receiving rollers to rotate.

[0004] The above-mentioned technical solutions suffer from structural complexity. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model proposes a device for testing the stone impact resistance of paint films, which effectively solves the problem of complex structure in existing testing devices and makes the test more stable.

[0006] This utility model is achieved by adopting the following technical solution:

[0007] An apparatus for testing the stone impact resistance of paint films includes a feeding pipe and a support platform located below the feeding pipe; the feeding pipe is used to directionally feed test stones; the support platform includes a mounting bracket and a base plate, one end of the base plate is hinged to the mounting bracket, and the other end is connected to the mounting bracket via a support member; the length of the support member or its connection position with the mounting bracket is adjustable to simulate stone impact at different angles; the base plate is provided with a U-shaped slot for placing test cards.

[0008] The support includes a rod-shaped structure with an adjustable length, one end of which is hinged to the base plate and the other end of which is hinged to the mounting bracket.

[0009] The support includes a rod-shaped structure of fixed length, one end of which is hinged to the base plate and the other end is hinged to a mounting block. The mounting block can be selectively positioned at different locations on the mounting support.

[0010] The mounting bracket is provided with positioning grooves that match the mounting block; the number of positioning grooves is several, and they are arranged at equal intervals.

[0011] The U-shaped slot is equipped with an anti-slip pad.

[0012] The mounting bracket is equipped with a horizontal adjustment foot at the bottom.

[0013] The feed pipe has a segmented structure, comprising several pipes that are connected in sequence.

[0014] The feeding pipe is connected to the wall via a bracket.

[0015] The top of the feeding pipe is provided with a feeding funnel, and the center of the feeding funnel coincides with the center of the feeding pipe.

[0016] The outer wall of the feeding funnel is provided with a limiting block that matches the upper surface of the feeding pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, by adjusting the length of the support member or the connection position with the mounting bracket, the base plate can be rotated around the hinge point between it and the mounting bracket. By adjusting and fixing the rotation angle, the stone impact situation at different angles can be simulated, and the stability of the stone impact test can be ensured.

[0019] 2. The support component includes a rod-shaped structure with adjustable length, which is simple in structure and easy to adjust.

[0020] 3. The support component includes a rod-shaped structure of fixed length, which can quickly adjust the rotation angle of the substrate through the cooperation of the mounting block and the mounting bracket.

[0021] 4. The positioning slots are arranged at equal intervals, and the distance between adjacent positioning slots can correspond to a preset angle increment, enabling the substrate to switch quickly between multiple preset angles.

[0022] 5. The anti-slip pads enhance the fixation of the test card.

[0023] 6. The leveling feet allow for adjustment of the platform's level on uneven surfaces.

[0024] 7. The feed pipe has a segmented structure, which is easy to assemble and disassemble. By increasing or decreasing the number of pipes or adjusting their combination, the height of the falling rock can be adjusted continuously or in segments.

[0025] 8. The feed pipe is connected to the wall via a bracket, which is convenient for installation and occupies a small area.

[0026] 9. The feeding funnel is designed to ensure that the center of the feeding funnel coincides with the center of the discharge pipe, which facilitates better guidance of the falling stone direction.

[0027] 10. The setting of the limit block makes it easier to better limit the position of the feeding hopper, resulting in a better guiding effect on the direction of falling rocks. Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of another structure of the support platform in this utility model;

[0031] Marked in the image:

[0032] 1. Feed pipe, 2. Mounting bracket, 3. Base plate, 4. Support component, 5. U-shaped slot, 6. Horizontal adjustment foot, 7. Bracket, 8. Wall, 9. Feeding funnel, 10. Limiting block, 11. Anti-slip pad, 12. Mounting block, 13. Slide rail. Detailed Implementation

[0033] Example 1

[0034] As a basic embodiment of this utility model, the utility model includes a device for testing the stone impact resistance of a paint film, comprising a feeding pipe 1 and a supporting platform located below the feeding pipe 1. The feeding pipe 1 is used for directional feeding of test stones. The supporting platform includes a mounting bracket 2 and a base plate 3. The base plate 3 is provided with a U-shaped slot 5 for placing test cards.

[0035] One end of the substrate 3 is connected to the mounting bracket 2 via a support member 4, and the other end is hinged to the mounting bracket 2, forming a hinge point. The support member 4 can be constructed using conventional techniques in the art. By adjusting the length of the support member 4 or its connection position with the mounting bracket 2, the substrate 3 can rotate around the hinge point, thereby adjusting the rotation angle of the substrate 3. By adjusting and fixing this rotation angle, the impact of stones at different angles can be simulated.

[0036] Example 2

[0037] In a preferred embodiment of this utility model, the present utility model includes a device for testing the stone impact resistance of a paint film, comprising a feeding pipe 1 and a support platform located below the feeding pipe 1. The feeding pipe 1 is used for directional feeding of test stones. The support platform includes a mounting bracket 2 and a base plate 3. The base plate 3 is provided with a U-shaped slot 5 for placing test cards. One end of the base plate 3 is connected to the mounting bracket 2 via a support member 4, and the other end is hinged to the mounting bracket 2 to form a hinge point. The support member 4 includes a rod-shaped structure of fixed length, one end of which is hinged to the base plate 3, and the other end is hinged to a mounting block 12, which can be selectively positioned at different locations on the mounting bracket 2.

[0038] For details, please refer to the instruction manual appendix. Figure 2 A slide rail 13 matching the mounting block 12 can be provided on the mounting support 2. The mounting block 12 can be slidably mounted on the slide rail 13 and can reciprocate along the slide rail 13.

[0039] Alternatively, positioning grooves matching the mounting block 12 can be provided on the mounting bracket 2. The number of positioning grooves is several, and they are arranged at equal intervals. By selectively inserting the mounting block 12 into different positioning grooves, the rotation angle can be adjusted. The distance between adjacent positioning grooves can correspond to a preset angle increment, allowing the substrate 3 to switch between multiple preset angles.

[0040] Both of the above structures allow for adjustment of the connection position between the mounting block 12 on the support member 4 and the mounting bracket 2, enabling the base plate 3 to rotate around the hinge point and thus adjust the rotation angle of the base plate 3. By adjusting and fixing this rotation angle, the stone impact situation at different angles can be simulated.

[0041] Example 3

[0042] In another preferred embodiment of this utility model, the utility model includes a device for testing the stone impact resistance of a paint film, comprising a feeding pipe 1 and a supporting platform located below the feeding pipe 1. The feeding pipe 1 is used for directional feeding of test stones. Specifically, the feeding pipe 1 has a segmented structure, comprising several pipes connected in sequence. Furthermore, a feeding funnel 9 is provided at the top of the feeding pipe 1, the center of which coincides with the center of the feeding pipe 1.

[0043] The support platform includes a mounting bracket 2 and a base plate 3. The base plate 3 has a U-shaped slot 5 for placing test cards. One end of the base plate 3 is connected to the mounting bracket 2 via a support member 4, and the other end is hinged to the mounting bracket 2 to form a hinge point. The length of the support member 4 or its connection position with the mounting bracket 2 is adjustable to simulate stone impact at different angles.

[0044] Example 4

[0045] As another preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 1 This utility model includes a device for testing the stone impact resistance of paint films, comprising a feeding pipe 1 and a supporting platform located below the feeding pipe 1. The feeding pipe 1 has a segmented structure, including several pipes connected sequentially by threads. The feeding pipe 1 can be connected to a wall 8 via a bracket 7, which may include a pipe clamp and a connector connected by the pipe clamp, with the other end of the connector connected to the wall 8. Through the aforementioned simple bracket 7 and its positional arrangement, this utility model eliminates the need for additional large supporting components such as mounting frames. In use, the height of the falling stone can be adjusted by increasing or decreasing the number of pipes based on previous use. Material can be fed through existing windows on the wall 8 or using a feeding tool, or additional feeding ports can be opened on the wall 8. Therefore, to facilitate better feeding of stones and other objects into the feeding pipe 1, a feeding funnel 9 can be installed at the top of the feeding pipe 1, with the center of the feeding funnel 9 coinciding with the center of the feeding pipe 1. Furthermore, in order to better limit and fix the position of the feeding funnel 9, a limiting block 10 that matches the upper surface of the feeding pipe 1 can be set on the outer wall of the feeding funnel 9.

[0046] The support platform includes a mounting bracket 2 and a base plate 3. The base plate 3 is provided with a U-shaped slot 5 for placing test cards. Furthermore, an anti-slip pad 11 is provided inside the U-shaped slot 5. One end of the base plate 3 is connected to the mounting bracket 2 through a support member 4, and the other end is hinged to the mounting bracket 2 to form a hinge point.

[0047] The support member 4 is a rod-shaped structure with adjustable length, such as a telescopic rod. The telescopic rod employs conventional techniques and may include an outer tube and an inner rod. The inner rod is slidably disposed within the outer tube and can extend outwards from it. A locking mechanism can lock the telescopic length of the inner rod. The outer tube can be hinged to the mounting bracket 2, and the other end of the inner rod is hinged to the base plate 3. Alternatively, the base plate 3 has a groove with a matching slider. The outer tube can be connected to the mounting bracket 2, and the other end of the inner rod is hinged to the slider. By adjusting the telescopic length of the inner rod, the base plate 3 can rotate around its hinge point with the mounting bracket 2.

[0048] Alternatively, the support member 4 may also include a rod-like structure with an adjustable length. Specifically, the support member 4 can be a linear drive mechanism such as an electric actuator. The electric actuator may include an electric actuator body and a telescopic actuator rod. Similarly, the electric actuator body may be hinged to the mounting bracket 2, and the other end of the actuator rod may be hinged to the base plate 3. Alternatively, the electric actuator body may be connected to the mounting bracket 2, and the other end of the actuator rod may be hinged to a slider on the base plate 3.

[0049] Furthermore, the bottom of the mounting bracket 2 is also provided with a leveling foot 6, which can ensure that the mounting bracket 2 remains stable on uneven ground.

[0050] With the above structure, the length of the support member 4 can be adjusted so that the base plate 3 can rotate around the hinge point, thereby adjusting the rotation angle of the base plate 3. By adjusting and fixing the rotation angle, the stone impact situation at different angles can be simulated.

[0051] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.

Claims

1. An apparatus for testing the stone impact resistance of a paint film, comprising a feeding pipe (1) and a support platform located below the feeding pipe (1); the feeding pipe (1) is used for directional feeding of test stones; characterized in that: The support platform includes a mounting bracket (2) and a base plate (3). One end of the base plate (3) is hinged to the mounting bracket (2), and the other end is connected to the mounting bracket (2) through a support member (4). The length of the support member (4) or its connection position with the mounting bracket (2) is adjustable to simulate stone impact at different angles. The base plate (3) is provided with a U-shaped slot (5) for placing test cards.

2. The apparatus for stone chip resistance testing of paint films according to claim 1, characterized in that: The support member (4) includes a rod-shaped structure with an adjustable length, one end of which is hinged to the base plate (3) and the other end of which is hinged to the mounting bracket (2).

3. The apparatus for stone chip resistance testing of paint films according to claim 1, characterized in that: The support member (4) includes a rod-shaped structure of fixed length. One end of the rod-shaped structure is hinged to the base plate (3), and the other end is hinged to a mounting block (12). The mounting block (12) can be selectively set at different positions on the mounting support (2).

4. The apparatus for stone chip resistance testing of paint films according to claim 3, characterized in that: The mounting bracket (2) is provided with a positioning groove that matches the mounting block (12); the number of positioning grooves is several and they are arranged at equal intervals.

5. An apparatus for testing the stone chip resistance of paint films according to claim 1 or 2, characterized in that: The U-shaped slot (5) is provided with an anti-slip pad (11).

6. The apparatus for stone chip resistance testing of paint films according to claim 5, characterized in that: The mounting bracket (2) is provided with a horizontal adjustment foot (6) at the bottom.

7. An apparatus for testing the stone chip resistance of paint films according to claim 1 or 2, characterized in that: The feed pipe (1) has a segmented structure, including several pipes that are connected in sequence.

8. The apparatus for stone chip resistance testing of paint films according to claim 7, characterized in that: The feed pipe (1) is connected to the wall (8) via a bracket (7).

9. An apparatus for testing the stone chip resistance of paint films according to claim 1 or 2, characterized in that: The top of the feeding pipe (1) is provided with a feeding funnel (9), and the center of the feeding funnel (9) coincides with the center of the feeding pipe (1).

10. The apparatus for stone chip resistance testing of paint films according to claim 9, characterized in that: The outer wall of the feeding funnel (9) is provided with a limiting block (10) that matches the upper surface of the feeding pipe (1).

Images