Paint film bending test equipment
By designing a paint film bending test device that combines a rotating frame, a sliding component, and a spring component, the problem of existing equipment being unable to adjust the bending roller was solved, enabling stable fixation and accurate testing of samples of different sizes and shapes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
Existing paint film bending test equipment cannot adjust the bending roller, resulting in poor adaptability to paint film samples of different sizes and shapes, which affects the accuracy and reliability of test results.
A paint film bending test device was designed, which includes a bending mechanism, a folding mechanism, and a clamping mechanism. Through the cooperation of a rotating frame, a sliding component, a spring component, and a slot, the height and position of the bending roller can be flexibly adjusted and stably fixed.
This improved the equipment's adaptability to paint film samples of different sizes and shapes, ensured the stability and accuracy of test results, reduced friction and resistance, and enhanced the smoothness and safety of the test.
Smart Images
Figure CN223985966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of epoxy curing agent preparation equipment, and in particular to a paint film bending test equipment. Background Technology
[0002] A paint film bending test device is an experimental apparatus specifically designed to test the performance of paint films (coatings) during bending. It is primarily used to evaluate key performance indicators of paint films, such as flexibility, resistance to bending cracking, and adhesion. These properties are crucial for the durability and reliability of coatings in practical applications, such as in the automotive, construction, and electronic equipment industries.
[0003] A search revealed Chinese Patent Publication No. CN203191268U, which discloses a paint film bending test device. This utility model proposes a paint film bending test device that is simple in structure, easy to use, and highly versatile. The device includes a template fixing device and a rotating mechanism in the shape of a "[" formed by a main plate and folded plates at both ends of the main plate. The template fixing device and the rotating mechanism are connected by a rotating shaft located at the two folded plates. The rotating mechanism contains an adjusting plate that can move perpendicular to the rotating shaft. During testing, the template is first fixed using the template fixing device, and one side of the template is engaged between the adjusting plate and the rotating shaft. Then, the gap between the plate and the rotating shaft is adjusted to ensure that the plate and shaft can clamp the template. Finally, rotating the mechanism forces the template to bend, thus testing its flexibility or bending resistance. Because the gap between the adjusting plate and the rotating shaft is adjustable, it can adapt to the testing requirements of templates of different thicknesses without needing to replace rotating shafts of different diameters.
[0004] However, in actual use, the above-mentioned device has limitations. Although it can adjust the test plates of different sizes, it cannot adjust the rotatable bending roller. This limits the adaptability of the device to paint film samples of different sizes and shapes, resulting in unstable clamping or uneven bending force during the test, which in turn affects the accuracy and reliability of the test results. Therefore, a paint film bending test device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a paint film bending test device, which aims to improve the problem that some existing devices cannot adjust the bending roller.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A paint film bending test device includes a base, a bending mechanism is provided on the top of the base, a connecting column is fixedly connected to an adjacent side of the bending mechanism, a bending mechanism is provided on the outside of the connecting column, and a clamping mechanism is provided on the top of the base.
[0008] The bending mechanism includes a rotating frame, which is rotatably connected to the outside of the connecting column. A sliding assembly is slidably connected to one side of the inner wall of the rotating frame. An adjustment groove is provided on the outer side of the rotating frame. A support column is fixedly connected inside the sliding assembly. A fixed column is slidably connected inside the adjustment groove. Multiple positioning columns are fixedly connected to the outside of the rotating frame. A pressure rod is rotatably connected to the outside of the fixed column. A top block is fixedly connected to the other side of the pressure rod. Placement plates are fixedly connected to both sides of the outside of the fixed column. Slots are provided on both sides of the inner wall of the adjustment groove. A spring assembly is fixedly connected inside the fixed column.
[0009] The above technical solution provides excellent rotational capability through the connection between the rotating frame and the connecting column, ensuring smooth bending operation of the bending roller. The design of the adjusting groove and the fixed column allows for flexible adjustment of the height and position of the bending roller, while the cooperation of the spring assembly and the locking slot ensures the stability and accuracy of the adjustment. Pressing the pressure rod retracts the top block, allowing the fixed column to slide freely within the adjusting groove. Once adjusted to the correct position, releasing the pressure rod causes the top block to automatically pop out under the action of the spring assembly and engage in the locking slot, fixing the position of the bending roller.
[0010] As a further description of the above technical solution:
[0011] The sliding assembly includes a sliding groove, the outside of which is opened inside the rotating frame, i.e., on the side away from the fixed column. A sliding block is slidably connected inside the sliding groove. The outside of the support column is fixedly connected to the outside of the sliding block. A bending roller is rotatably connected to the top of the support column.
[0012] The above technical solution provides excellent sliding capability through the design of the sliding groove and sliding block, enabling the support column and bending roller to be smoothly adjusted in position to adapt to paint film samples of different sizes and shapes.
[0013] As a further description of the above technical solution:
[0014] The spring assembly includes two placement slots. The two placement slots are opened on the outside of the fixed post, that is, on both sides near the outside of the pressure rod. A guide post is fixedly connected inside each of the two placement slots. A compression spring is sleeved on the outside of each of the two guide posts. The outer side of the guide post is fixedly connected to the outer side of the top block.
[0015] The above technical solution provides a good placement space, ensuring the stable installation of the guide column and the compression spring, providing reliable support for the movement of the top block. Pressing the pressure rod causes the top block to retract, and the fixing column slides freely in the adjustment groove. After adjustment, the pressure rod is released, and the top block automatically pops out and locks into the slot under the action of the compression spring, fixing the position of the fixing column.
[0016] As a further description of the above technical solution:
[0017] The bending mechanism includes two support seats, the bottoms of which are fixedly connected to the top of the base, and the outer sides of the connecting column are rotatably connected to the outer sides of the support seats.
[0018] Through the above technical solution: the support base is fixedly connected to the base, providing stable support for the connecting column and ensuring that the connecting column can rotate smoothly. The rotation of the connecting column drives the rotating frame in the bending mechanism to move, thereby causing the bending roller to apply bending force to the paint film.
[0019] As a further description of the above technical solution:
[0020] A conical column is fixedly connected to the top of the connecting column, and the outer sides of the rotating frame are on both sides of the outer conical column.
[0021] Through the above technical solution, the design of the conical column provides good guidance and support, enabling the rotating frame to slide more smoothly along the surface of the conical column during movement, reducing friction and resistance during movement.
[0022] As a further description of the above technical solution:
[0023] The clamping mechanism includes a fixed plate, the bottom of which is fixedly connected to the top of the base, and support columns are rotatably connected to both outer sides of the fixed plate.
[0024] The above technical solution provides good positioning capability through the fixed plate, and allows for smooth rotation through the support.
[0025] As a further description of the above technical solution:
[0026] Support rods are fixedly connected to the outer front sides of the two support rods, and movable columns are fixedly connected to the outer adjacent sides of the two support rods. A cam is rotatably connected to the outer side of the movable column.
[0027] Through the above technical solution, the support rod, with its connection and support capabilities, ensures a stable connection between the support column and the movable column, and can provide different pressures.
[0028] As a further description of the above technical solution:
[0029] A push plate is slidably connected to the top of the base, that is, the outer side near the fixed plate, and the outer front side of the push plate is the outer rear side of the cam.
[0030] The above technical solution allows for the fixing of different test boards by combining the fixing plate and the pushing plate.
[0031] This utility model has the following beneficial effects:
[0032] 1. In this utility model, pressing the pressure rod causes the top block to retract, allowing the bending roller to be adjusted in angle. The fixed column can slide freely in the adjustment groove, realizing the adjustment of the height and position of the bending roller, flexibly adapting to paint film samples of different sizes. The placement plate is locked on the outside of the positioning column to prevent the fixed column from being excessively inserted into the adjustment groove, further limiting the sliding range and improving the stability and safety of the equipment.
[0033] 2. In this utility model, the continuous rotation of the cam causes its convex surface to gradually press the push plate towards the fixed plate, and the push plate slides smoothly along the top of the base, ensuring the stability and uniformity of the clamping process and ensuring that the test plate is firmly fixed. Its design can improve the accuracy of bending tests, and the cam design can also reduce the space occupied by the device. Attached Figure Description
[0034] Figure 1 This is a three-dimensional schematic diagram of a paint film bending test device proposed in this utility model;
[0035] Figure 2 This is a schematic diagram of the support structure of a paint film bending test device proposed in this utility model;
[0036] Figure 3 This is a schematic diagram of the support column of a paint film bending test device proposed in this utility model;
[0037] Figure 4 This is a schematic diagram of the structure of the adjustment groove of a paint film bending test device proposed in this utility model;
[0038] Figure 5 This is a schematic diagram of the structure of the placement plate of the paint film bending test equipment proposed in this utility model;
[0039] Figure 6 This is a schematic diagram of the structure of the movable column of a paint film bending test device proposed in this utility model.
[0040] Legend:
[0041] 1. Base; 2. Bending mechanism; 21. Support seat; 22. Conical column; 3. Bending mechanism; 31. Rotating frame; 32. Support column; 33. Adjustment groove; 34. Positioning column; 35. Fixing column; 36. Placement plate; 37. Pressure rod; 38. Top block; 39. Slot; 4. Sliding assembly; 401. Sliding groove; 402. Sliding block; 403. Bending roller; 5. Spring assembly; 501. Guide column; 502. Compression spring; 503. Placement groove; 6. Clamping mechanism; 61. Fixing plate; 62. Support column; 63. Support rod; 64. Movable column; 65. Cam; 66. Push plate; 7. Connecting column. Detailed Implementation
[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0043] Reference Figures 3 to 5 An embodiment of this utility model is provided: a paint film bending test device, including a base 1, a bending mechanism 2 is provided on the top of the base 1, a connecting column 7 is fixedly connected to the adjacent side of the bending mechanism 2, the connecting column 7 can provide good lateral support force through the support of the bending mechanism 2, a bending mechanism 3 is provided on the outside of the connecting column 7, and a clamping mechanism 6 is provided on the top of the base 1.
[0044] The bending mechanism 3 includes a rotating frame 31, designed to provide good rotational capability. The interior of the rotating frame 31 is rotatably connected to the exterior of the connecting column 7. A sliding assembly 4 is slidably connected to one side of the inner wall of the rotating frame 31. The sliding assembly 4 includes a sliding groove 401, designed to provide good sliding capability. The exterior of the sliding groove 401 is located inside the rotating frame 31, on the side away from the fixed column 35. A sliding block 402 is slidably connected inside the sliding groove 401, designed to provide good sliding capability. Through the sliding space provided by the sliding groove 401, the sliding block 402 slides smoothly inside the sliding groove 401. The exterior of the support column 32 is fixedly connected to the exterior of the sliding block 402. A bending roller 4 is rotatably connected to the top of the support column 32. 03. The bending roller 403 is located at the bottom of the rotating frame 31. Its design provides good bending ability. By pulling the rotating frame 31, the tested plate can be pressed. Three adjustment grooves 33 are evenly distributed on the outer side of the rotating frame 31, away from the sliding block 402. This design provides different positioning capabilities. A support column 32 is fixedly connected inside the sliding assembly 4. It is fixedly connected to the outside of the bending roller 403. The two outer sides of the support column 32 are fixedly connected to the outer side of the sliding block 402. The support column 32 allows the sliding block 402 to rotate smoothly and be supported. A fixed column 35 is slidably connected inside the adjustment groove 33. It provides good positioning capability. When the bending roller 403 slides to adjust to different heights, it can drive the sliding block 402 to slide inside the sliding groove 401, thus enabling the bending roller 403 to be adjusted to different positions. Multiple positioning posts 34 are fixedly connected to the outside of the rotating frame 31. The positioning posts 34 are fixedly connected to the outside of both sides of the adjusting groove 33, providing good limiting capability. A pressure rod 37 is rotatably connected to the outside of the fixed post 35, providing good linkage capability. A top block 38 is fixedly connected to the other side of each pressure rod 37, providing good locking capability. Placement plates 36 are fixedly connected to the outside of the fixed post 35, which can lock onto the outside of the positioning post 34. To prevent the fixed post 35 from sliding excessively inside the adjusting groove 33, the inner wall of the adjusting groove 33 has slots 39 on both sides, which provide good locking ability. By pressing the pressure rods 37 on both sides of the fixed post 35, the top block 38 can be moved to extend and retract relative to each other. After the fixed post 35 slides into the adjusting groove 33, the pressure rods 37 are released, so that the top block 38 can be fixedly locked inside the slots 39. A spring assembly 5 is fixedly connected inside the fixed post 35. The spring assembly 5 includes two placement slots 503, which are designed to provide good placement space. At the same time, the outer adjacent side of the top block 38 can slide inside the placement slots 503. The two placement slots 503 are opened on the outside of the fixed post 35, that is, on the outer sides near the pressure rods 37.Both placement slots 503 have guide posts 501 fixedly connected inside, designed to provide good guiding capability. Compression springs 502 are respectively fitted onto the outside of the two guide posts 501. The guiding capability provided by the guide posts 501 prevents the compression springs 502 from shifting during compression and reset. One outer side of the guide post 501 is fixedly connected to the outer side of the top block 38.
[0045] Specifically, during the paint film bending test, the position of the bending roller 403 is adjusted by operating the pressure rod 37. Pressing the pressure rod 37 causes the top block 38 to retract, at which point the fixing column 35 can slide freely within the adjustment groove 33. By sliding the support column 32, the sliding block 402 moves within the sliding groove 401, thereby allowing the bending roller 403 to reach the required height and position to accommodate paint film samples of different sizes. After adjustment, the pressure rod 37 is released, and the top block 38 automatically pops out under the action of the spring assembly 5 and engages in the slot 39, firmly fixing the fixing column 35 and ensuring the stability of the bending roller 403. Subsequently, the equipment is started, and the rotating frame 31 begins to rotate, driving the bending roller 403 to apply bending force to the paint film for the bending test. Simultaneously, during use, the placement plate 36 can engage with the outside of the positioning column 34, preventing the fixing column 35 from excessively inserting into the adjustment groove 33.
[0046] Reference Figure 1 and Figure 2 The bending mechanism 2 includes two support seats 21, which are designed to provide good support capacity. The bottom of the two support seats 21 is fixedly connected to the top of the base 1. The outer sides of the connecting column 7 are rotatably connected to the outer sides of the support seats 21. The top of the connecting column 7 is fixedly connected to a conical column 22. When the rotating frame 31 drives the support column 32 to rotate, the outer side of the bending roller 403 can rotate along the top of the conical column 22, so that the placed test plate can be bent. The outer side of the rotating frame 31 is on the outer sides of the conical column 22.
[0047] Specifically, the rotating frame 31 is activated by operation. The movement of the rotating frame 31 causes the support column 32 to rotate, which in turn causes the bending roller 403 to move. The outer side of the bending roller 403 rotates along the top of the conical column 22. Through this movement, the bending roller 403 applies a bending force to the placed test plate, causing it to bend. The support base 21 provides stable support for the connecting column 7, ensuring that the connecting column 7 can rotate smoothly, thereby guaranteeing the movement accuracy and stability of the rotating frame 31. Through this coordinated movement, the equipment can perform bending operations on the paint film sample, completing the test of the paint film's bending performance.
[0048] Reference Figure 1 and Figure 6The clamping mechanism 6 includes a fixed plate 61, which is designed to provide good support. The bottom of the fixed plate 61 is fixedly connected to the top of the base 1. The outer sides of the fixed plate 61 are rotatably connected to the support columns 62. The support of the fixed plate 61 allows the support columns 62 to rotate smoothly. The outer front sides of the two support columns 62 are fixedly connected to the support rods 63, which are designed to provide good connection and support. The outer adjacent sides of the two support rods 63 are fixedly connected to the movable column 64, which is designed to provide good support. The top of the base 1, near the outer side of the fixed plate 61, is slidably connected to the push plate 66, which is designed to slide with the outer front side of the fixed plate 61 so that they can fit together. The outer side of the movable column 64 is rotatably connected to the cam 65, which is designed to provide good compression. The test plate is placed between the fixed plate 61 and the push plate 66. Then the cam 65 is rotated. The convex surface of the cam 65 can compress the outer front side of the push plate 66, so that the test plate can be fixed. The outer front side of the push plate 66 is on the outer rear side of the cam 65.
[0049] Specifically, the test plate is placed between the fixed plate 61 and the push plate 66. Then, the operator rotates the cam 65, and the convex portion of the cam 65 begins to contact and apply pressure to the outer front side of the push plate 66. As the cam 65 continues to rotate, its convex surface gradually presses the push plate 66 towards the fixed plate 61, causing the push plate 66 to slide along the top of the base 1. During this process, the test plate is firmly clamped between the fixed plate 61 and the push plate 66, thus fixing the test plate. At this time, the test plate remains stable under the action of the clamping mechanism 6, preparing it for the bending test.
[0050] Working Principle: During the paint film bending test, the paint film sample to be tested is first placed in the designated position on the equipment. Next, the rotation position of the bending roller 403 is adjusted by operating the rotating frame 31. Then, the pressure rod 37 is pressed, causing the top block 38 to retract. At this time, the fixed column 35 can slide freely within the adjustment groove 33. By sliding the support column 32, the sliding block 402 moves within the sliding groove 401, thereby allowing the bending roller 403 to reach the required height and position to accommodate paint film samples of different sizes. After adjustment, the pressure rod 37 is released, and the top block 38 automatically pops out under the action of the spring assembly 5 and engages in the slot 39, firmly fixing the fixed column 35 and ensuring the stability of the bending roller 403. Subsequently, the equipment is started. The support base 21 provides stable support for the connecting column 7, ensuring that the connecting column 7 can rotate smoothly when the rotating frame 31 begins to move. The movement of the rotating frame 31 drives the support column 32 to rotate, causing the bending roller 403 to begin rotating. During rotation, the outer side of the bending roller 403 rotates along the top of the conical column 22. The bending roller 403 is designed to apply a bending force to the placed test plate, causing the test plate to bend.
[0051] During the operation of the paint film bending test equipment, the paint film sample to be tested is first placed in the area between the fixed plate 61 and the push plate 66. Next, the operator manually rotates the cam 65. As the cam 65 rotates, its convex portion gradually contacts the push plate 66 and begins to apply pressure. Under the continuous action of the cam 65, the push plate 66 is gradually pushed towards the fixed plate 61, sliding along the top of the base 1, thus firmly clamping the paint film sample between them. This ensures the stability of the paint film sample during the subsequent bending test, providing a reliable fixation guarantee for the successful conduct of the test.
[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A paint film bending test apparatus comprising a base (1) characterised in that: The top of the base (1) is provided with a bending mechanism (2), the adjacent side of the bending mechanism (2) is fixedly connected with a connecting column (7), the outside of the connecting column (7) is provided with a folding mechanism (3), and the top of the base (1) is provided with a clamping mechanism (6). The folding mechanism (3) comprises a rotating frame (31), the inside of the rotating frame (31) is rotatably connected to the outside of the connecting column (7), the inner wall side of the rotating frame (31) is slidably connected with a sliding assembly (4), the outside of the rotating frame (31) is provided with an adjusting groove (33), the inside of the sliding assembly (4) is fixedly connected with a supporting column (32), the inside of the adjusting groove (33) is slidably connected with a fixed column (35), the outside of the rotating frame (31) is fixedly connected with a plurality of positioning columns (34), the outside of the fixed column (35) is rotatably connected with a pressing rod (37), the outside of the pressing rod (37) is fixedly connected with a top block (38) on the other side, the outside of the fixed column (35) is fixedly connected with a placing plate (36) on both sides, the inner wall of the adjusting groove (33) is provided with a clamping groove (39) on both sides, and the inside of the fixed column (35) is fixedly connected with a spring assembly (5).
2. A paint film bend test apparatus according to claim 1, wherein: The sliding assembly (4) comprises a sliding groove (401), the outside of the sliding groove (401) is arranged in the inside of the rotating frame (31), that is, on the side away from the fixed column (35), the inside of the sliding groove (401) is slidably connected with a sliding block (402), and the outside of the supporting column (32) is fixedly connected to the outside of the sliding block (402).
3. A paint film bend tester according to claim 1, wherein: The spring assembly (5) comprises two placing grooves (503), the outside of the two placing grooves (503) is arranged on the outside of the fixed column (35), that is, on the outside of the two sides close to the pressing rod (37), the inside of the two placing grooves (503) is fixedly connected with a guide column (501), the outside of the two guide columns (501) is respectively sleeved with an extrusion spring (502), and the outside of the guide column (501) is fixedly connected to the outside of the top block (38) on one side.
4. A paint film bend tester according to claim 1, wherein: The bending mechanism (2) comprises two supporting seats (21), and the bottoms of the two supporting seats (21) are fixedly connected to the top of the base (1).
5. A paint film bend tester according to claim 4, wherein: The top of the connecting column (7) is fixedly connected with a conical column (22), and the outside of the rotating frame (31) is located on the outside of the conical column (22) on both sides.
6. A paint film bend tester according to claim 1, wherein: The clamping mechanism (6) comprises a fixed plate (61), the bottom of the fixed plate (61) is fixedly connected to the top of the base (1), and the outside of the fixed plate (61) is rotatably connected with a supporting column (62) on both sides.
7. A paint film bend tester according to claim 6, wherein: The outside of the two supporting columns (62) is fixedly connected with a supporting rod (63) on the front side, the outside of the two supporting rods (63) is fixedly connected with a movable column (64) on the adjacent side, and the outside of the movable column (64) is rotatably connected with a cam (65).
8. A paint film bend tester according to claim 7, wherein: The top of the base (1) is slidingly connected with a pushing plate (66) near the outer side of the fixed plate (61), and the outer front side of the pushing plate (66) is at the outer rear side of the cam (65).
Citation Information
Patent Citations
Paint film bending test device
CN203191268U