A device for testing the abrasion decoloration of leather

Abstract

The utility model discloses a kind of leather abrasion decoloration test devices, including support platform, stand, the upper surface of one side at the center of support platform is fixedly installed in stand, the upper end of stand is installed with crosspiece, the lower end of crosspiece is provided with friction device, the center of the upper surface of support platform is provided with first sliding slot, the inside of first sliding slot is provided with stretching assembly, the upper end of support platform is provided with clamping device oppositely, the utility model is rotated second runner and drives bidirectional screw rod rotation, make two groups of first slider drive lower clamping plate follow movement, to drive the two ends of clamping leather to move oppositely, realize the stretching of leather, simulate the stress state when actual use, let leather surface friction stress distribution be more in line with actual, improve the reference value of test result.

Description

Technical Field

[0001] This utility model relates to the technical field of leather testing equipment, specifically a leather abrasion and discoloration testing device. Background Technology

[0002] In the leather products industry, color fastness is one of the core indicators for measuring product quality, while rubbing colorfastness is a key parameter that directly relates to consumer experience and product market competitiveness. Whether it is leather for clothing, bags, or furniture decoration, it will frequently come into contact with different friction media (such as clothing fibers, hand skin, and fabrics) during daily use. If the coating or dye on the leather surface is easily removed under friction, it will not only affect the integrity of the product's appearance, but may also cause problems such as clothing staining and skin staining, reducing the product's use value and brand reputation.

[0003] Existing equipment mostly uses rigid clamps to hold and fix leather samples, which can only achieve planar positioning of the samples and cannot simulate the stress state of leather products caused by stretching and deformation during actual wear or use. For example, shoe upper leather will stretch to a certain extent with foot movement when worn, and bag leather will also undergo local deformation when loaded with items. However, the samples under rigid clamping are always in a stress-free state, which leads to a significant difference between the frictional force distribution on the leather surface during the test and the actual situation. The reference value of the final test results is greatly reduced. Therefore, a leather friction discoloration test device is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a leather abrasion and discoloration testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leather abrasion and color removal test device, comprising a support platform and a column, wherein the column is fixedly installed on the upper surface of one side of the center of the support platform, a horizontal plate is installed at the upper end of the column, a friction device is provided at the lower end of the horizontal plate, a first sliding groove is provided at the center of the upper surface of the support platform, a tensioning component is provided inside the first sliding groove, and a clamping device is provided opposite to the upper end of the support platform.

[0006] Preferably, the stretching assembly includes a first slider, a bidirectional screw, and a second rotating wheel. The bidirectional screw is disposed inside the first slide groove. One end of the bidirectional screw is rotatably mounted on the inner wall of one end of the first slide groove, and the other end passes through the support platform and is connected to the side surface of the second rotating wheel. The second rotating wheel is disposed on the outer side of one end of the support platform. The first slider is provided in two sets, which are respectively threaded to the outer surfaces of both ends of the bidirectional screw.

[0007] Preferably, the clamping device includes a mounting plate, a lower clamping plate, an upper clamping plate, a support plate, a first rotating wheel, and a threaded rod. The mounting plate is disposed on the upper end of the support platform. One side of the lower clamping plate is fixedly mounted on the surface of the lower end of the mounting plate. The upper clamping plate is disposed on the upper end of the lower clamping plate, and one side of the upper clamping plate is slidably disposed on one side of the mounting plate. The upper end of the upper clamping plate is provided with a support plate, one end of which is fixedly mounted on the surface of the upper end of the mounting plate. The threaded rod is threadedly connected to the inside of one end of the support plate, one end of which is rotatably mounted on the upper surface of the upper clamping plate, and the other end is connected to the surface of the first rotating wheel.

[0008] Preferably, the friction device includes an electric telescopic rod, a mounting frame, a friction head, and a servo motor. The electric telescopic rod is fixedly installed inside one end of the horizontal plate. The mounting frame is located at the lower end of the horizontal plate and is fixedly connected to the telescopic end of the electric telescopic rod. The servo motor is fixedly installed inside the mounting frame, and the friction head is connected to the output end of the servo motor.

[0009] Preferably, two sets of second sliding grooves are provided on one side of the mounting plate, and second sliders are installed on both ends of one side of the upper clamping plate, with the second sliders slidably disposed inside the second sliding grooves.

[0010] Preferably, the lower surface of the upper clamping plate is fixedly connected with teeth, and multiple sets of teeth are provided.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model rotates the second rotating wheel to drive the bidirectional screw to rotate, causing the two sets of first sliders to move the lower clamping plate accordingly, thereby causing the two ends of the clamped leather to move in opposite directions, achieving the stretching of the leather, simulating the stress state during actual use, making the frictional force distribution on the leather surface more realistic, and improving the reference value of the test results.

[0012] 2. This utility model rotates the first rotating wheel to drive the threaded rod to rotate, causing the upper clamping plate to move downwards and cooperate with the lower clamping plate to clamp the leather. The teeth on the lower surface of the upper clamping plate can enhance the fixing effect, prevent the leather from slipping, and ensure the accuracy of the friction test. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main view of this utility model; Figure 2 This is a schematic diagram of the clamping device of this utility model; Figure 3 This is a schematic diagram of the tensioning component of this utility model; In the diagram: 1-Support platform, 2-Column, 3-Mounting plate, 4-Electric telescopic rod, 5-Horizontal plate, 6-First slide rail, 7-Mounting bracket, 8-Friction head, 9-Servo motor, 10-Upper clamping plate, 11-Threaded rod, 12-First rotating wheel, 13-Support plate, 14-Tooth, 15-Lower clamping plate, 16-Second slide rail 17-Second slider, 18-First slider, 19-Double screw, 20-Second rotary wheel. Detailed Implementation

[0014] 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.

[0015] Please refer to Figure 1-3 As shown, this utility model provides a leather abrasion and color removal test device, including a support platform 1 and a column 2. The column 2 is fixedly installed on the upper surface of one side of the center of the support platform 1. A horizontal plate 5 is installed on the upper end of the column 2, and a friction device is provided at the lower end of the horizontal plate 5. A first groove 6 is opened at the center of the upper surface of the support platform 1. A tensioning component is provided inside the first groove 6. A clamping device is provided opposite to the upper end of the support platform 1.

[0016] Specifically, this invention rotates the second rotating wheel 20 to drive the bidirectional screw 19 to rotate, causing the two sets of first sliders 18 to move the lower clamping plate 15 accordingly. This causes the two ends of the leather to move in opposite directions, achieving stretching of the leather and simulating the stress state during actual use. This makes the frictional force distribution on the leather surface more realistic and improves the reference value of the test results. By rotating the first rotating wheel 12 to drive the threaded rod 11 to rotate, the upper clamping plate 10 moves downward, cooperating with the lower clamping plate 15 to clamp the leather. The teeth 14 on the lower surface of the upper clamping plate 10 can enhance the fixing effect, prevent the leather from slipping, and ensure the accuracy of the friction test.

[0017] The stretching assembly includes a first slider 18, a bidirectional screw 19, and a second rotating wheel 20. The bidirectional screw 19 is disposed inside the first slide groove 6. One end of the bidirectional screw 19 is rotatably mounted on the inner wall of one end of the first slide groove 6, and the other end passes through the support platform 1 and is connected to the side surface of the second rotating wheel 20. The second rotating wheel 20 is disposed on the outer side of one end of the support platform 1. Two sets of first sliders 18 are provided, which are threadedly connected to the outer surfaces of both ends of the bidirectional screw 19. By rotating the second rotating wheel 20, the bidirectional screw 19 is driven to rotate. The rotation of the bidirectional screw 19 drives the two sets of first sliders 18, which are threadedly connected to the surface, to move in opposite directions inside the first slide groove 6. The movement of the first sliders 18 drives the lower clamping plate 15 to move accordingly, thereby causing the two ends of the leather clamped to move in opposite directions, thus stretching the leather.

[0018] The clamping device includes a mounting plate 3, a lower clamping plate 15, an upper clamping plate 10, a support plate 13, a first rotating wheel 12, and a threaded rod 11. The mounting plate 3 is located on the upper end of the support platform 1. One side of the lower clamping plate 15 is fixedly mounted on the surface of the lower end of the mounting plate 3. The upper clamping plate 10 is located on the upper end of the lower clamping plate 15, and one side of it is slidably mounted on the side of the mounting plate 3. The upper end of the upper clamping plate 10 is provided with the support plate 13. One end of the support plate 13 is fixedly mounted on the surface of the upper end of the mounting plate 3. The threaded rod 11 is threadedly connected to the inside of one end of the support plate 13. One end of the threaded rod 11 is rotatably mounted on the upper surface of the upper clamping plate 10, and the other end is connected to the surface of the first rotating wheel 12. By rotating the first rotating wheel 12, the threaded rod 11 is driven to rotate inside the support plate 13. The rotation of the threaded rod 11 drives the upper clamping plate 10 to move downward, and at the same time drives 17 to slide inside the second sliding groove 16, thereby clamping both ends of the leather.

[0019] The friction device includes an electric telescopic rod 4, a mounting frame 7, a friction head 8, and a servo motor 9. The electric telescopic rod 4 is fixedly installed inside one end of the horizontal plate 5. The mounting frame 7 is located at the lower end of the horizontal plate 5 and is fixedly connected to the telescopic end of the electric telescopic rod 4. The servo motor 9 is fixedly installed inside the mounting frame 7. The friction head 8 is connected to the output end of the servo motor 9. By starting the electric telescopic rod 4, the mounting frame 7 is moved downward. The movement of the mounting frame 7 causes the mounted servo motor 9 and the friction head 8 to move downward, so that the friction head 8 is in contact with the surface of the leather. Then, the servo motor 9 is started to drive the friction head 8 to rotate in both directions to conduct a friction experiment on the leather.

[0020] Among them: two sets of second sliding grooves 16 are opened on one side of the mounting plate 3, and second sliders 17 are installed on both ends of one side of the upper clamping plate 10. The second sliders 17 are slidably disposed inside the second sliding grooves 16. Through the second sliding grooves 16 and the second sliders 17, the upper clamping plate 10 can be made more stable during movement.

[0021] Among them, the lower surface of the upper clamping plate 10 is fixedly connected with teeth 14. There are multiple sets of teeth 14. The teeth 14 can enhance the fixing effect, prevent the leather from sliding, and ensure the accuracy of the friction test.

[0022] Working principle: This utility model is a leather abrasion and color removal test device. First, the two ends of the leather are placed between two sets of upper clamping plates 10 and lower clamping plates 15 respectively. Then, the first rotating wheel 12 is rotated to drive the threaded rod 11 to rotate inside the support plate 13. The rotation of the threaded rod 11 drives the upper clamping plate 10 to move downward, and at the same time drives 17 to slide inside the second sliding groove 16, thereby clamping the two ends of the leather. By providing multiple sets of teeth 14 on the lower surface of the upper clamping plate 10, the leather can be fixed and prevented from sliding. Then, the second rotating wheel 20 is rotated to drive the bidirectional screw 1 Rotation of screw 19 causes the two sets of first sliders 18 connected by threads on the surface to move in opposite directions inside the first groove 6. The movement of the first sliders 18 causes the lower clamping plate 15 to move accordingly, thereby causing the two ends of the leather to move in opposite directions, thus stretching the leather. Then, the electric telescopic rod 4 is activated to move the mounting frame 7 downward. The movement of the mounting frame 7 causes the mounted servo motor 9 and friction head 8 to move downward, so that the friction head 8 is in contact with the surface of the leather. Then, the servo motor 9 is activated to drive the friction head 8 to rotate in both directions to conduct a friction experiment on the leather.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A leather abrasion bleaching test device, comprising a support platform (1) and a column (2), characterized in that, The column (2) is fixedly installed on the upper surface of the support platform (1) at the center. A horizontal plate (5) is installed at the upper end of the column (2). A friction device is provided at the lower end of the horizontal plate (5). A first sliding groove (6) is opened at the center of the upper surface of the support platform (1). A tensioning component is provided inside the first sliding groove (6). A clamping device is provided at the upper end of the support platform (1).

2. The leather abrasion bleaching test device according to claim 1, characterized in that: The tensioning assembly includes a first slider (18), a bidirectional screw (19), and a second rotating wheel (20). The bidirectional screw (19) is disposed inside the first slide groove (6). One end of the bidirectional screw (19) is rotatably mounted on the inner wall of one end of the first slide groove (6), and the other end passes through the support platform (1) and is connected to the side surface of the second rotating wheel (20). The second rotating wheel (20) is disposed on the outer side of one end of the support platform (1). The first slider (18) is provided in two sets, which are threadedly connected to the outer surfaces of both ends of the bidirectional screw (19).

3. The leather abrasion bleaching test device according to claim 2, characterized in that: The clamping device includes a mounting plate (3), a lower clamping plate (15), an upper clamping plate (10), a support plate (13), a first rotating wheel (12), and a threaded rod (11). The mounting plate (3) is located on the upper end of the support platform (1). One side of the lower clamping plate (15) is fixedly mounted on the surface of the lower end of the mounting plate (3). The upper clamping plate (10) is located on the upper end of the lower clamping plate (15), and one side of it is slidably mounted on the side of the mounting plate (3). The upper end of the upper clamping plate (10) is provided with a support plate (13). One end of the support plate (13) is fixedly mounted on the surface of the upper end of the mounting plate (3). The threaded rod (11) is threadedly connected to the inside of one end of the support plate (13). One end of the threaded rod is rotatably mounted on the upper surface of the upper clamping plate (10), and the other end is connected to the surface of the first rotating wheel (12).

4. The leather abrasion bleaching test device according to claim 1, characterized in that: The friction device includes an electric telescopic rod (4), a mounting frame (7), a friction head (8), and a servo motor (9). The electric telescopic rod (4) is fixedly installed inside one end of the horizontal plate (5). The mounting frame (7) is located at the lower end of the horizontal plate (5) and is fixedly connected to the telescopic end of the electric telescopic rod (4). The servo motor (9) is fixedly installed inside the mounting frame (7). The friction head (8) is connected to the output end of the servo motor (9).

5. The leather abrasion bleaching test apparatus according to claim 3, characterized in that: Two sets of second sliding grooves (16) are provided on one side of the mounting plate (3), and second sliders (17) are installed on both ends of one side of the upper clamping plate (10). The second sliders (17) are slidably disposed inside the second sliding grooves (16).

6. The leather abrasion bleaching test apparatus according to claim 3, characterized in that: The lower surface of the upper clamp (10) is fixedly connected with teeth (14), and multiple sets of teeth (14) are provided.

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