An artificial leather abrasion testing apparatus

Abstract

The utility model discloses a kind of simulation leather wear resistance test equipment, it is related to wear resistance test technical field, including workbench, the workbench is provided with placing table, the top of the placing table is provided with the connecting frame of liftable, the connecting frame is rotatably connected with friction roller, the side of the connecting frame is connected with the servo motor of driving friction roller rotation, the side of the connecting frame is connected with installation frame, transmission screw is rotatably connected in the installation frame;The utility model tests, leather is fixed, and friction roller is contacted with leather by telescopic cylinder automatic control, servo motor drives friction roller and the transmission screw of coaxial rotation and polishing, in polishing process, the resistance of leather to friction roller makes transmission screw load, driven nut keeps balance due to spring elasticity;After leather abrasion, resistance is suddenly reduced, transmission screw thread driving force overcomes spring elasticity and promotes driven nut to move, photoelectric sensor detects position change and sends signal, prompt test completion.

Description

Technical Field

[0001] This utility model relates to the field of abrasion resistance testing technology, specifically to a simulated leather abrasion resistance testing device. Background Technology

[0002] Leather is animal hide that has undergone physical and chemical processing such as hair removal and tanning, resulting in a modified appearance that makes it less prone to decay. Leather is composed of natural protein fibers tightly woven in three-dimensional space, and its surface has a special grain layer with natural grain and luster, and a comfortable feel. During the production of leather, various tests are required, including abrasion resistance tests. The abrasion resistance test index is a major factor in the performance of leather.

[0003] A Chinese patent (publication number: CN222561480U) discloses a simulated leather abrasion resistance testing device, which addresses the technical problem that existing abrasion resistance testing devices can only test a single leather sample individually, resulting in poor comparison of abrasion resistance performance between different leathers and low testing efficiency. The device includes a worktable comprising a horizontal plate and two supporting vertical plates. A housing is fixed to the horizontal plate, and a vertical moving component is installed on the inner wall of the housing. This vertical moving component is connected to three friction components and drives the three friction components to move vertically. Three rotating components are also provided on the horizontal plate inside the housing. The leather to be tested is placed on the rotating components, with the leather positioned below the three friction components. After the three friction components move vertically, they come into contact with the leather to be tested. Three clamping components are also provided on the rotating components for fixing the leather to be tested.

[0004] During the polishing process, the above-mentioned equipment can polish three pieces of leather simultaneously through the three friction components, which makes it convenient to test three pieces of leather at the same time. However, during the testing process, when the leather is worn, that is, when the test results are obtained, the device lacks an effective prompt component. Therefore, the operator needs to observe the polishing status at all times during the testing process.

[0005] To address these issues, we designed a simulated leather abrasion resistance testing device. Utility Model Content

[0006] The purpose of this invention is to provide a simulated leather abrasion resistance testing device to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a simulated leather abrasion resistance testing device, including a workbench, a placement platform on the workbench, a liftable connecting frame above the placement platform, a friction roller rotatably connected inside the connecting frame, a servo motor for driving the friction roller to rotate connected to one side of the connecting frame, a mounting frame connected to one side of the connecting frame, a transmission screw rotatably connected inside the mounting frame, the transmission screw being coaxially arranged with the friction roller, a driven nut threaded onto the transmission screw, a resisting spring connected to one side of the driven nut, the other end of the resisting spring being connected to the inner wall of the mounting frame, and a photoelectric sensor for detecting the position of the driven nut being installed inside the mounting frame.

[0008] Furthermore, a mounting plate is connected to one side of the photoelectric sensor, and a positioning bolt for limiting the mounting plate is threaded onto the mounting plate. The mounting plate is slidably connected to the mounting frame.

[0009] Furthermore, a guide rod is connected inside the mounting frame, and the driven nut is slidably connected to the guide rod. The driven nut has a sliding opening that matches the guide rod.

[0010] Furthermore, the drive end of the servo motor is connected to a mounting shaft, a first transmission gear is rotatably connected to the connecting frame, one end of the mounting shaft is connected to the first transmission gear, a second transmission gear is meshed with one side of the first transmission gear, and the second transmission gear is coaxially arranged with the friction roller.

[0011] Furthermore, a telescopic cylinder is connected inside the workbench, and the telescopic end of the telescopic cylinder is connected to the top of the connecting frame.

[0012] Furthermore, mounting brackets are connected to both sides of the placement platform. The mounting brackets are arranged in an "L" shape. Limiting bolts are threaded onto the mounting brackets, and the other end of the limiting bolts is rotatably connected to a limiting plate.

[0013] Furthermore, an anti-slip pad is connected to one side of the limiting plate, and anti-slip particles are integrally formed on the anti-slip pad.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. During testing, after the leather is fixed, the friction roller is automatically controlled to contact the leather via a telescopic cylinder. The servo motor drives the friction roller and the coaxial transmission screw to rotate and polish. During the polishing process, the resistance of the leather to the friction roller loads the transmission screw, and the driven nut is kept in balance by the spring force. After the leather is worn, the resistance decreases sharply, and the thread drive force of the transmission screw overcomes the spring force to push the driven nut to move. The photoelectric sensor detects the position change and sends a signal to indicate that the test is complete.

[0016] 2. The photoelectric sensor is mounted on a sliding mounting plate, and the detection position can be flexibly adjusted by the limit bolts. It can be adapted to the abrasion resistance characteristics of different leathers, so that the equipment can be widely used in abrasion resistance testing environments of various simulated leathers. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;

[0018] Figure 2 This is a bottom view of the present invention;

[0019] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0021] In the diagram: 1. Workbench; 2. Placement platform; 3. Connecting frame; 4. Servo motor; 5. Friction roller; 6. Mounting frame; 7. Transmission screw; 8. Driven nut; 9. Contact spring; 10. Photoelectric sensor; 11. Guide rod; 12. Mounting shaft; 13. First transmission gear; 14. Second transmission gear; 15. Mounting plate; 16. Positioning bolt; 17. Telescopic cylinder. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a simulated leather abrasion resistance testing device, including a workbench 1, a placement platform 2 on the workbench 1, a liftable connecting frame 3 above the placement platform 2, a friction roller 5 rotatably connected inside the connecting frame 3, a servo motor 4 for driving the friction roller 5 to rotate connected to one side of the connecting frame 3, a mounting frame 6 connected to one side of the connecting frame 3, a transmission screw 7 rotatably connected inside the mounting frame 6, the transmission screw 7 being coaxially arranged with the friction roller 5, a driven nut 8 threadedly connected to the transmission screw 7, a resisting spring 9 connected to one side of the driven nut 8, the other end of the resisting spring 9 being connected to the inner wall of the mounting frame 6, and a photoelectric sensor 10 for detecting the position of the driven nut 8 inside the mounting frame 6.

[0024] In practice, during testing, the leather is placed on the placement platform 2, and the connecting frame 3 is lowered so that the friction roller 5 comes into contact with the leather. The servo motor 4 is started, driving the friction roller 5 to rotate and polish the leather. The friction roller 5 is coaxially connected to the transmission screw 7, and the friction roller 5 and the transmission screw 7 rotate synchronously. During the polishing process, the leather has frictional resistance against the friction roller 5, which loads the transmission screw 7. The driven nut 8 is balanced by the elastic force of the spring 9 and the threaded transmission of the transmission screw 7, and remains in its initial position. When the leather is worn, the frictional resistance decreases sharply, the load on the transmission screw 7 decreases, and because the servo motor 4 rotates at a stable speed, the driving force of the threaded transmission on the driven nut 8 overcomes the elastic force of the spring 9, pushing the driven nut 8 to move. The photoelectric sensor 10 detects the change in the position of the driven nut 8 and sends a signal indicating that the leather wear is complete.

[0025] See Figure 1-4 A mounting plate 15 is connected to one side of the photoelectric sensor 10. A positioning bolt 16 is threaded onto the mounting plate 15 to limit its position. The mounting plate 15 is slidably connected to the mounting frame 6.

[0026] In practice, the mounting plate 15 is slidably connected to the mounting frame 6, and the installation position of the photoelectric sensor 10 can be adjusted. After adjustment, the positioning bolt 16 is tightened, and the mounting plate 15 is limited by the thread self-locking to fix the position of the photoelectric sensor 10. This setting can adjust the detection position of the photoelectric sensor 10 according to the wear resistance characteristics of different leathers, and adapt to the testing needs of various leathers.

[0027] See Figure 1-4 The mounting frame 6 is connected to a guide rod 11, and the driven nut 8 is slidably connected to the guide rod 11. The driven nut 8 has a sliding opening that matches the guide rod 11.

[0028] In practice, the driven nut 8 is slidably connected to the guide rod 11 through a sliding joint. The guide rod 11 restricts the movement of the driven nut 8, so that the driven nut 8 can only move axially.

[0029] See Figure 1-4 The drive end of the servo motor 4 is connected to the mounting shaft 12, and the first transmission gear 13 is rotatably connected to the connecting frame 3. One end of the mounting shaft 12 is connected to the first transmission gear 13, and a second transmission gear 14 is meshed with one side of the first transmission gear 13. The second transmission gear 14 is coaxially arranged with the friction roller 5.

[0030] In practice, the servo motor 4 drives the mounting shaft 12 to rotate, which in turn drives the first transmission gear 13 to rotate. The first transmission gear 13 meshes with the second transmission gear 14, which in turn drives the second transmission gear 14 and the coaxial friction roller 5 to rotate.

[0031] See Figure 1-4The workbench 1 is connected to a telescopic cylinder 17, and the telescopic end of the telescopic cylinder 17 is connected to the top of the connecting frame 3.

[0032] In practice, the telescopic end of the telescopic cylinder 17 is connected to the top of the connecting frame 3. When the telescopic cylinder 17 extends or retracts, it pushes the connecting frame 3 and the friction roller 5 to rise and fall in the vertical direction, so as to achieve contact or separation between the friction roller 5 and the leather.

[0033] See Figure 1-4 Both sides of the placement platform 2 are connected to mounting brackets, which are arranged in an "L" shape. Limit bolts are threaded onto the mounting brackets, and the other end of the limit bolts is rotatably connected to a limit plate.

[0034] In practice, after placing the leather on the placement platform 2, rotate the limiting bolt on the mounting bracket to push the limiting plate towards the leather until the limiting plate touches the leather and fixes the leather.

[0035] See Figure 1-4 One side of the limiting plate is connected to an anti-slip pad, and the anti-slip pad has anti-slip particles integrally formed on it.

[0036] In practice, when the limiting plate comes into contact with the leather, the anti-slip pad comes into contact with the leather, and the anti-slip particles increase the friction between the anti-slip pad and the leather.

[0037] Working principle: Place the simulated leather to be tested on the placement platform 2, then rotate the limiting bolts on the mounting brackets on both sides of the placement platform 2 to push the limiting plate towards the leather until the anti-slip pad with anti-slip particles connected to the limiting plate contacts the leather. The increased friction from the anti-slip particles stabilizes the leather on the placement platform 2, preventing the leather from shifting during subsequent polishing.

[0038] Next, the telescopic cylinder 17 inside the control workbench 1 extends and retracts. Since the telescopic end of the telescopic cylinder 17 is connected to the top of the connecting frame 3, when the telescopic cylinder 17 extends, it pushes the connecting frame 3 and the friction roller 5 inside the connecting frame 3 to descend vertically, so that the friction roller 5 comes into contact with the leather fixed on the placement table 2. Then, the servo motor 4 starts, and the mounting shaft 12 connected to its drive end rotates, driving the first transmission gear 13 rotatably connected to the connecting frame 3 to rotate. The first transmission gear 13 meshes with the second transmission gear 14, thereby driving the second transmission gear 14 and the friction roller 5, which is coaxially arranged with the second transmission gear 14, to rotate, and the friction roller 5 begins to polish the leather. At the same time, the transmission screw 7, which is coaxially arranged with the friction roller 5, also rotates synchronously. During the polishing process, the leather has frictional resistance against the friction roller 5, which causes the transmission screw 7 to be under load. At this time, the driven nut 8 threaded on the transmission screw 7 is balanced by the elastic force of the spring 9 against the threaded transmission of the transmission screw 7.

[0039] As the leather wears down, the frictional resistance between the leather and the friction roller 5 decreases sharply, reducing the load on the transmission screw 7. Meanwhile, the servo motor 4 maintains a stable speed. The thread of the transmission screw 7 drives the driven nut 8, overcoming the spring force of the resisting spring 9, and pushes the driven nut 8 to move axially along the guide rod 11. The photoelectric sensor 10 inside the mounting frame 6 detects the positional change of the driven nut 8 and sends a signal indicating that the leather wear is complete. The photoelectric sensor 10 is connected to the mounting plate 15, which is slidably connected to the mounting frame 6. After adjustment, the position is fixed by the self-locking thread of the positioning bolt 16.

Claims

1. An artificial leather abrasion resistance testing apparatus comprising a worktable (1), characterized in that, The workbench (1) is provided with a placement platform (2), and a liftable connecting frame (3) is provided above the placement platform (2). A friction roller (5) is rotatably connected inside the connecting frame (3). A servo motor (4) for driving the friction roller (5) to rotate is connected to one side of the connecting frame (3). A mounting frame (6) is connected to one side of the connecting frame (3). A transmission screw (7) is rotatably connected inside the mounting frame (6). The transmission screw (7) is coaxially arranged with the friction roller (5). A driven nut (8) is threaded on the transmission screw (7). A resisting spring (9) is connected to one side of the driven nut (8). The other end of the resisting spring (9) is connected to the inner wall of the mounting frame (6). A photoelectric sensor (10) for detecting the position of the driven nut (8) is provided inside the mounting frame (6).

2. A simulated leather abrasion resistance testing apparatus as claimed in claim 1, wherein: The photoelectric sensor (10) is connected to a mounting plate (15) on one side. The mounting plate (15) is threaded with a positioning bolt (16) that limits the position of the mounting plate (15). The mounting plate (15) is slidably connected to the mounting frame (6).

3. A simulated leather abrasion resistance testing apparatus as claimed in claim 1, wherein: The mounting frame (6) is connected to a guide rod (11), and the driven nut (8) is slidably connected to the guide rod (11). The driven nut (8) has a sliding opening that matches the guide rod (11).

4. A simulated leather abrasion resistance testing apparatus as claimed in claim 1, wherein: The drive end of the servo motor (4) is connected to the mounting shaft (12), and the first transmission gear (13) is rotatably connected to the connecting frame (3). One end of the mounting shaft (12) is connected to the first transmission gear (13), and a second transmission gear (14) is meshed with one side of the first transmission gear (13). The second transmission gear (14) is coaxially arranged with the friction roller (5).

5. A simulated leather abrasion resistance testing apparatus as claimed in claim 1, wherein: The workbench (1) is connected to a telescopic cylinder (17), and the telescopic end of the telescopic cylinder (17) is connected to the top of the connecting frame (3).

6. A simulated leather abrasion resistance testing apparatus as claimed in claim 1, wherein: Both sides of the placement platform (2) are connected to mounting brackets, which are arranged in an "L" shape. The mounting brackets are threaded with limit bolts, and the other end of the limit bolts is rotatably connected to a limit plate.

7. A simulated leather abrasion resistance testing apparatus as claimed in claim 6, wherein: One side of the limiting plate is connected to an anti-slip pad, and the anti-slip pad has anti-slip particles integrally formed on it.

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