A frictional decoloration testing machine

Abstract

The utility model relates to test mechanical technical field especially is a kind of friction decolourization testing machine, including testing machine, friction head, the front end of testing machine is installed with the friction head that can move left and right, the cavity inside of testing machine is slidably connected with the base plate that can move up and down, the cavity inside of testing machine is equipped with driving mechanism, the two mobile ends of driving mechanism are fixedly provided with the engagement sliding member that can occur dislocation sliding, the two parts of engagement sliding member mutually engage, the upper end of two engagement sliding member is fixedly connected with base plate, the surface of testing machine is fixedly connected with two elastic fixing mechanisms;In engagement sliding member, wedge-shaped frame one and wedge-shaped frame two carry out face-face contact by slope, in the friction decolourization process, the reaction force received by base plate is transmitted when passing two, large-area contact can effectively disperse stress, avoid the abrasion or damage of component due to stress concentration, prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of testing machinery technology, and in particular to a friction decolorization test machine. Background Technology

[0002] The rubbing color fastness tester is a specialized device used to evaluate the degree of color fading or discoloration of materials (such as fabrics, leather, inks, coatings, etc.) under friction. It is widely used in quality control and R&D in industries such as textiles, printing and dyeing, leather, and packaging printing. The rubbing color fastness tester simulates the friction process in actual use, rubs the sample a certain number of times, and then compares the color change before and after friction to evaluate the material's rubbing color fastness.

[0003] For example, the utility model patent CN219694811U discloses an ink decolorization testing machine, in which: "The motor is started, and the motor drives the bidirectional lead screw to rotate, causing two movable blocks to move away from each other under the opposite helical action of the bidirectional lead screw. Simultaneously, the movable blocks move, driving the push rod to move. Since the height of the wedge block gradually increases in the direction of the push rod's movement, the push rod, while being driven horizontally by the movable blocks, also slides upward in the through hole vertically due to the push of the wedge block. This causes the two push rods to push the placement plate upward along the groove, reducing the distance between the placement plate and the friction head to accommodate thinner test samples." This device uses the push rod... The push rod is used to push the placement plate upwards, allowing it to fall automatically using its own weight. This adjusts the distance between the placement plate and the friction head, enabling accurate testing of samples of varying thicknesses. However, the push rod only applies unidirectional (upward) mechanical restraint to the placement plate via a wedge block, lacking a damping or locking mechanism for downward movement. When the friction head applies frictional force to the sample with high-frequency reciprocating motion, the placement plate enters an alternating "free-constrained" state in the vertical direction. When the upward component of the frictional force exceeds the weight of the placement plate, it may cause slight fluctuations. Furthermore, the push rod contacts the placement plate and wedge block via rollers, a form of line contact. In a vibrating operating environment, line contact can easily lead to stress concentration, causing mutual wear among the three components, affecting the lifespan of the device and testing accuracy. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a friction decolorization tester, comprising a tester and a friction head. The front end of the tester is equipped with a friction head that can move left and right. A base plate that can move up and down is slidably connected inside the cavity of the tester. A drive mechanism is installed inside the cavity of the tester. Both moving ends of the drive mechanism are fixedly provided with engaging sliding parts that can slide out of alignment. The two parts of the engaging sliding parts engage with each other. The upper ends of the two engaging sliding parts are fixedly connected to the base plate. Two elastic fixing mechanisms are fixedly connected to the surface of the tester.

[0005] As an improvement to the above technical solution, the driving mechanism includes a motor, a bidirectional lead screw, and a sliding table. The motor is installed inside the cavity of the testing machine, and the output end of the motor is fixedly connected to the bidirectional lead screw. Two sliding tables are threadedly connected to the surface of the bidirectional lead screw, and the sliding tables are slidably engaged with the bottom of the cavity.

[0006] As an improvement to the above technical solution, the engaging sliding component includes a wedge frame one, a slot, a wedge frame two, and a locking block. The wedge frame one has a slot at its inclined end, and the wedge frame two has a locking block fixedly installed at its inclined end. The locking block passes through the slot and is slidably engaged with the slot.

[0007] As an improvement to the above technical solution, the elastic fixing mechanism includes a fixed frame, a sliding frame, a lower pressure plate, and springs. The fixed frame is fixedly installed on the surface of the testing machine. The upper end of the fixed frame is slidably connected to the sliding frame, and the lower end of the sliding frame is fixedly connected to the lower pressure plate. Multiple springs are fixedly installed between the fixed frame and the lower pressure plate.

[0008] As an improvement to the above technical solution, an anti-slip rubber pad is fixedly connected to the lower end of the pressure plate.

[0009] The beneficial effects of this utility model are: In the locking and sliding mechanism, wedge frame two engages with wedge frame one via a locking block, providing a stable vertical constraint on wedge frame one and the substrate, preventing the substrate from shifting or shaking during the friction decolorization process and ensuring test accuracy. In the locking and sliding mechanism, wedge frame one and wedge frame two make surface contact through inclined surfaces. During the friction decolorization process, when the reaction force on the substrate is transmitted through the two, the large-area contact can effectively disperse stress, avoid stress concentration leading to component wear or damage, and extend the service life of the equipment. Attached Figure Description

[0010] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the substrate of this utility model; Figure 3 This is a structural diagram of the drive mechanism of this utility model; Figure 4 This is a structural diagram of the locking sliding component of this utility model; Figure 5 This is a structural diagram of the elastic fixing mechanism of this utility model.

[0011] Reference numerals in the attached drawings: 1. Testing machine; 2. Friction head; 3. Drive mechanism; 31. Motor; 32. Bidirectional lead screw; 33. Sliding table; 4. Engaging sliding component; 41. Wedge frame one; 42. Slot; 43. Wedge frame two; 44. Block; 5. Base plate; 6. Elastic fixing mechanism; 61. Fixing frame; 62. Sliding frame; 63. Lower pressure plate; 64. Spring; 65. Anti-slip rubber pad. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0013] Please see Figure 1-5 This utility model provides a technical solution: a friction decolorization tester, including a tester 1 and a friction head 2. The front end of the tester 1 is equipped with a friction head 2 that can move left and right. The cavity of the tester 1 is slidably connected to a base plate 5 that can move up and down. The cavity of the tester 1 is equipped with a drive mechanism 3. Both moving ends of the drive mechanism 3 are fixedly provided with locking sliding parts 4 that can slide out of alignment. The two parts of the locking sliding parts 4 are locked together. The upper ends of the two locking sliding parts 4 are fixedly connected to the base plate 5. The surface of the tester 1 is fixedly connected with two elastic fixing mechanisms 6.

[0014] In this embodiment, the user first uses the elastic pressing part of the elastic fixing mechanism 6 to initially and stably place the test sample on the surface of the substrate 5. Then, the user activates the drive mechanism 3, and the two moving ends of the drive mechanism 3 begin to slide and move closer to each other. This action causes the two engaging sliding parts 4 to slide out of alignment, thereby making the substrate 5 move upward smoothly. As the substrate 5 moves upward, the test sample gradually approaches the rubbing head 2, preparing for the subsequent rubbing decolorization test.

[0015] Simultaneously, the upward movement of the substrate 5 also exerts a squeezing effect on the elastic pressing portion of the elastic fixing mechanism 6 through the test sample. This squeezing effect further enhances the fixing effect of the elastic fixing mechanism 6 on the test sample, ensuring the stability of the sample during the test. Since the two parts of the locking slider 4 are interlocked and in surface-to-surface contact, this design not only provides a stable vertical constraint for the substrate 5, preventing unnecessary displacement or shaking during the test, but also effectively disperses stress through a large contact area, reducing wear or damage caused by stress concentration, thereby extending the service life of the equipment and improving the accuracy and reliability of the test.

[0016] like Figure 3 As shown, the drive mechanism 3 includes a motor 31, a bidirectional lead screw 32, and a sliding table 33. The motor 31 is installed inside the cavity of the testing machine 1. The output end of the motor 31 is fixedly connected to the bidirectional lead screw 32. Two sliding tables 33 are threadedly connected to the surface of the bidirectional lead screw 32. The sliding tables 33 are slidably engaged with the bottom of the cavity.

[0017] In this embodiment, the user starts the motor 31, which drives the bidirectional lead screw 32 to rotate, thereby driving the two sliding tables 33 to move, so that the sliding tables 33 slide at the bottom of the cavity.

[0018] like Figure 4 As shown, the engaging sliding member 4 includes a wedge frame 41, a slot 42, a wedge frame 43, and a locking block 44. The inclined end of the wedge frame 41 is provided with a slot 42, and the inclined end of the wedge frame 43 is fixedly provided with a locking block 44. The locking block 44 passes through the slot 42 and is slidably engaged with the slot 42.

[0019] In this embodiment, when the sliding stage 33 moves, it drives the second wedge frame 43 to move as well. Since the second wedge frame 43 is in contact with the inclined surface of the first wedge frame 41, it pushes the first wedge frame 41 upward, thereby driving the substrate 5 upward. Furthermore, because the second wedge frame 43 engages with the first wedge frame 41 via the locking block 44, it provides vertical constraint to the first wedge frame 41 and the substrate 5, ensuring the stability and accuracy of the substrate 5 after movement and preventing the substrate 5 from shifting or shaking during the friction decolorization process. Simultaneously, the first wedge frame 41 and the second wedge frame 43 contact each other via inclined surfaces, resulting in surface-to-surface contact. During the friction decolorization process, especially when the friction head 2 applies frictional force to the sample, the substrate 5 experiences a reaction force, which is transmitted through the first wedge frame 41 and the second wedge frame 43. The large contact area effectively disperses stress, preventing wear or damage to components due to stress concentration.

[0020] like Figure 5As shown, the elastic fixing mechanism 6 includes a fixed frame 61, a sliding frame 62, a lower pressure plate 63, and springs 64. The fixed frame 61 is fixedly installed on the surface of the testing machine 1. The upper end of the fixed frame 61 is slidably connected to the sliding frame 62, and the lower end of the sliding frame 62 is fixedly connected to the lower pressure plate 63. Multiple springs 64 are fixedly installed between the fixed frame 61 and the lower pressure plate 63.

[0021] In this embodiment, when the user pulls the sliding bracket 62 upward, the lower pressure plate 63 moves upward, and the spring 64 is compressed. Then, the test sample is placed on the surface of the substrate 5. Subsequently, the user releases the sliding bracket 62, and the lower pressure plate 63 moves downward under the elastic force of the spring 64. Using the elastic force of the spring 64, the lower pressure plate 63 squeezes the test sample, thereby initially stabilizing the test sample on the surface of the substrate 5. When the substrate 5 moves upward, the test sample pushes the lower pressure plate 63 and the sliding bracket 62 upward, and the spring 64 is further compressed, thereby stabilizing the test sample on the surface of the substrate 5.

[0022] like Figure 5 As shown, an anti-slip rubber pad 65 is fixedly connected to the lower end of the pressure plate 63.

[0023] In this embodiment, the lower pressure plate 63 presses the test sample with the anti-slip rubber pad 65, thereby improving the fixation effect of the test sample.

[0024] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A friction decolorization tester, comprising a tester (1) and a friction head (2), wherein the front end of the tester (1) is equipped with a friction head (2) that can move left and right, characterized in that: The cavity of the testing machine (1) is slidably connected to a base plate (5) that can move up and down. The cavity of the testing machine (1) is equipped with a drive mechanism (3). Both moving ends of the drive mechanism (3) are fixedly provided with locking sliding parts (4) that can be misaligned and slid. The two parts of the locking sliding parts (4) are locked together. The upper ends of the two locking sliding parts (4) are fixedly connected to the base plate (5). The surface of the testing machine (1) is fixedly connected with two elastic fixing mechanisms (6).

2. The rubbing decolorization tester according to claim 1, characterized in that: The drive mechanism (3) includes a motor (31), a two-way lead screw (32), and a sliding table (33). The motor (31) is installed inside the cavity of the testing machine (1). The output end of the motor (31) is fixedly connected to the two-way lead screw (32). The surface of the two-way lead screw (32) is threaded with two sliding tables (33). The sliding tables (33) are slidably engaged with the bottom of the cavity.

3. The rubbing decolorization tester according to claim 2, characterized in that: The locking sliding member (4) includes a wedge frame one (41), a slot (42), a wedge frame two (43), and a locking block (44). The wedge frame one (41) has a slot (42) on its inclined end, and the wedge frame two (43) has a locking block (44) fixedly installed on its inclined end. The locking block (44) passes through the slot (42) and is slidably engaged with the slot (42).

4. The rubbing decolorization tester according to claim 1, characterized in that: The elastic fixing mechanism (6) includes a fixed frame (61), a sliding frame (62), a lower pressure plate (63), and springs (64). The fixed frame (61) is fixedly installed on the surface of the testing machine (1). The upper end of the fixed frame (61) is slidably connected to the sliding frame (62), and the lower end of the sliding frame (62) is fixedly connected to the lower pressure plate (63). Multiple springs (64) are fixedly installed between the fixed frame (61) and the lower pressure plate (63).

5. The rubbing decolorization tester according to claim 4, characterized in that: The lower end of the pressure plate (63) is fixedly connected to an anti-slip rubber pad (65).

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