Leather softness testing device

Abstract

The utility model relates to the technical field of leather softness detection, in particular to a leather softness performance testing device which comprises a tester body, and an installation platform is arranged below a long-strip-shaped contact pin in the tester body. A frame is fixed on the mounting platform, a polygonal cylinder is rotationally mounted in the frame, the side wall of the polygonal cylinder is formed by sequentially and fixedly connecting a plurality of groups of test plates, and test gaps with different widths are formed in each group of test plates; a plurality of groups of mutually independent test boards are integrated, and different test boards can be converted to the top for use by rotating the polygonal cylinder, so that the replacement efficiency is improved.

Description

Technical Field

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

[0002] Leather softness testers have cylindrical and elongated styluses. When using an elongated styluse, the leather is laid flat on the test plate of the tester. The tester is started, and the elongated styluse is slowly pressed down at a set speed, pressing the leather into the test slits on the test plate. As the pressure increases, the degree and shape changes of the leather at the onset of deformation, obvious deformation, and when the maximum pressure is reached are recorded.

[0003] Depending on the leather testing requirements, a test board with a corresponding gap width will be selected. Therefore, the test board needs to be replaced and installed according to the testing requirements.

[0004] This solution provides a leather softness performance testing device that integrates multiple independent test plates into one unit, improving replacement efficiency and avoiding the need for separate and proper storage of replaced test plates to prevent loss. Utility Model Content

[0005] (I) Technical Issues

[0006] The present invention aims to at least solve the problem in the prior art that test plates of different specifications in testers need to be disassembled and replaced repeatedly.

[0007] (II) Technical Content

[0008] This solution provides a leather softness performance testing device, which is achieved by the following specific technical means, including a testing instrument body, and a mounting platform below the elongated stylus in the testing instrument body;

[0009] A frame is fixed on the mounting platform, and a polygonal cylinder is rotatably installed inside the frame. The sidewall of the polygonal cylinder is composed of multiple sets of test plates that are fixedly connected in sequence, and each set of test plates has test gaps of different widths.

[0010] Preferred technical solution 1: Extension plates are slidably mounted on both sides of the polygonal cylinder on the frame. The sides of the two sets of extension plates that are close to each other are in contact with the left and right sides of a set of test plates located at the top, thereby forming a larger leather laying platform.

[0011] Preferred technical solution 2: A linkage control mechanism is provided on the frame, which is simultaneously connected to the polygonal cylinder and two sets of extension plates.

[0012] Preferred technical solution 3: A set of convex shafts fixed at the center of the front wall of the polygonal cylinder are connected to the linkage control mechanism;

[0013] The frame has symmetrical horizontal sliding grooves on the left and right sides, and the slider of each set of extension plates slides in a set of horizontal sliding grooves on the corresponding side.

[0014] The linkage control mechanism includes a slide cylinder slidably sleeved on a set of convex shafts on the front side, a rotating ring rotatably sleeved on the slide cylinder, and connecting rods hinged to both sides of the rotating ring and the two sets of sliders.

[0015] Preferred technical solution four: A spring is connected between the front wall of the polygonal cylinder and the sliding cylinder.

[0016] (III) Technical Effects

[0017] The above structure gives this solution the following advantages:

[0018] 1. Multiple independent test boards are combined into a polygonal cylinder, and the rotation of the polygonal cylinder is used to quickly change the position of the test boards.

[0019] 2. The extension plate can work with the test plate to obtain a leather laying platform with a sufficient area while reducing the volume of the polygonal tube;

[0020] 3. The ingenious design of the linkage control mechanism enables the linkage control of the rotation of the polygonal cylinder and the lateral sliding motion of the extension plate, improving the convenience of operation. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0023] Figure 2 This is a diagram showing the state of the extension plate of this scheme being far away from the polygonal tube;

[0024] Figure 3 This diagram shows the mating state of the test board and the elongated stylus in this solution.

[0025] Figure 4 This is a diagram showing the compatibility between the extension board and the test board in this solution.

[0026] Figure 5 This is an exploded view of the framework, polygonal tube, extension plate, and linkage control mechanism of this scheme.

[0027] Figure 6 This is the rear view of the polygonal tube in this design.

[0028] The components include: 1. Tester body; 11. Long strip-shaped stylus; 12. Dust cover; 13. Mounting platform; 2. Frame; 21. Horizontal slide groove; 3. Polygonal cylinder; 31. Convex shaft; 32. Test plate; 321. Gap; 4. Extension plate; 41. Slider; 5. Linkage control mechanism; 51. Slide cylinder; 52. Rotary ring; 53. Connecting rod; 54. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figures 1-3 ;

[0032] The leather softness performance testing device includes a tester body 1, and a mounting platform 13 is located below the elongated stylus 11 in the tester body 1.

[0033] A frame 2 is fixed on the mounting platform 13, and a polygonal cylinder 3 is rotatably installed inside the frame 2. The side wall of the polygonal cylinder 3 is composed of multiple sets of test plates 32 fixedly connected in sequence. Each set of test plates 32 has test gaps 321 of different widths. The width of the gaps 321 on the test plates 32 is greater than the width of the long strip stylus 11, and the length is greater than the length of the long strip stylus 11.

[0034] When each set of test plates 32 is rotated to the top side, the gap 321 on the test plate 32 is exactly below the long strip stylus 11. At this time, the long strip stylus 11 is moved down by the telescopic arm that extends from the tester body 1 and is connected to the long strip stylus 11, pressing the leather laid on the upper test plate 32 and inserting it into the gap 321 on the test plate 32 to test the softness of the leather. The test data is recorded by the tester body 1.

[0035] Different test plates 32 can be switched to the top by rotating the polygonal cylinder 3. The polygonal cylinder 3 is a regular polygonal structure.

[0036] A dust cover 12 that can be mounted on the mounting platform 13 is also hinged to the main body 1 of the tester. The dust cover 12 is used to cover the frame 2, the polygonal cylinder 3 and the long stylus 11 to prevent dust. The dust cover 12 needs to be opened when taking out or putting in the leather.

[0037] Example 2

[0038] Based on Example 1, please refer to Figures 2-4 ;

[0039] Since the leather needs to be laid flat when placed, and the width of the test board 32 is the priority, if the width of the test board 32 is too large, it will cause the overall volume of the polygonal cylinder 3 to be too large. Therefore, in order to reduce the volume of the polygonal cylinder 3, the width of the test board 32 should not be set too large.

[0040] To compensate for the insufficient width of the test plate 32, extension plates 4 are provided on the left and right sides of the frame 2 in the width direction of the polygonal tube 3. The sides of the two sets of extension plates 4 that are close to each other are in contact with the left and right sides of the test plate 32 located at the top. The side of the extension plate 4 that contacts the polygonal tube 3 is an inclined surface that is adapted to it.

[0041] The top surface of the extension plate 4 and the top surface of the top test plate 32 are on the same horizontal plane. At this time, the two sets of extension plates 4 and the top test plate 32 form a larger leather laying platform to ensure that the leather sample can be laid flat.

[0042] The extension plate 4 is slidably connected to the frame 2. The distance between the extension plate 4 and the polygonal cylinder 3 can be controlled by sliding the extension plate 4. Before rotating the polygonal cylinder 3, the extension plate 4 should be slid away from the test plate 32. After the corresponding test plate 32 is rotated to the top, the extension plate 4 should be slid closer to the test plate 32 and make contact with it to re-form the leather laying platform.

[0043] Example 3

[0044] Based on Example 2, please refer to Figures 4-6 ;

[0045] To improve the ease of operation when replacing the test plate 32, a linkage control mechanism 5 is provided on the frame 2. The linkage control mechanism 5 is connected to the polygonal cylinder 3 and two sets of extension plates 4 at the same time. It is used to control the linkage change between the rotation of the polygonal cylinder 3 and the sliding action of the extension plates 4. The polygonal cylinder 3 is rotatably connected to the rear wall of the frame 2 through a set of convex shafts 31 on the rear end wall. At the same time, another set of convex shafts 31 on the front end wall of the polygonal cylinder 3 is connected to the linkage control mechanism 5.

[0046] A transverse sliding groove 21 is symmetrically provided on the left and right sides of a set of front convex shafts 31 at the front part of the frame 2. Each set of extension plates 4 is fixed with a slider 41 that is slidably installed in a set of transverse sliding grooves 21 on the corresponding side. The linkage control mechanism 5 includes a sliding cylinder 51 that is slidably sleeved on a set of front convex shafts 31. The sliding cylinder 51 can slide back and forth on the convex shafts 31. At the same time, a rotating ring 52 is rotatably sleeved on the sliding cylinder 51. The rotating ring 52 can rotate on the sliding cylinder 51. The two sides of the rotating ring 52 are hinged to the two sets of sliders 41 with connecting rods 53.

[0047] When the extension plate 4 contacts the side of the top test plate 32, the slide cylinder 51 slides forward to the end of the front convex shaft 31, at which point the two sets of sliders 41 are in a close proximity to each other.

[0048] When it is necessary to change the test plate 32, the slide cylinder 51 needs to be pushed close to the polygonal cylinder 3. During the push, the connecting rod 53 will drive the two sets of sliders 41 to move away from each other, that is, drive the two sets of extension plates 4 to slide away from the polygonal cylinder 3 until a sufficient distance is reached. Then, you can hold the slide cylinder 51 and rotate it to drive the polygonal cylinder 3 to rotate. When the required set of test plates 32 is rotated to the top, you can pull the slide cylinder 51 forward to drive the two sets of sliders 41 to move closer to each other and link the two sets of extension plates 4 to move closer to the two sides of the top test plate 32 and contact its left and right sides again.

[0049] A spring 54 is connected between the front wall of the polygonal cylinder 3 and the slide cylinder 51. The spring 54 is set to provide a force to push away the slide cylinder 51 and to provide a force for the two sets of extension plates 4 to press against the side of the top test plate 32. When pushing the slide cylinder 51 backward, the spring 54 needs to be compressed.

[0050] At the same time, while the spring 54 drives the two sets of extension plates 4 to contact the left and right sides of the top test plate 32, it can also position and clamp the test plate 32, thereby providing support force to maintain the test plate 32 in a stable flat position during the test.

[0051] It is worth noting that the tester body 1, the elongated stylus 11, and its matching power supply and control switch mentioned in this embodiment can also be provided by the manufacturer. The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and there is no need to elaborate further.

[0052] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leather softness performance testing device, comprising a testing instrument body (1), wherein a mounting platform (13) is located below an elongated stylus (11) connected to a telescopic arm in the testing instrument body (1), characterized in that: A frame (2) is fixed on the mounting platform (13), and a polygonal cylinder (3) is rotatably installed inside the frame (2). The side wall of the polygonal cylinder (3) is composed of multiple sets of test plates (32) fixedly connected in sequence, and there are test gaps (321) of different widths on each set of test plates (32). When each set of test plates (32) is rotated to the top, the gap (321) on the set of test plates (32) is located directly below the elongated stylus (11). Different test plates (32) can be switched to the top for use by rotating the polygonal cylinder (3).

2. The leather softness performance testing device according to claim 1, characterized in that: On the frame (2), extension plates (4) are slidably provided on both the left and right sides of the polygonal tube (3) in the width direction. The sides of the two sets of extension plates (4) that are close to each other are in contact with the left and right sides of a set of test plates (32) located at the top. The top surface of the extension plate (4) is on the same horizontal plane as the top surface of the test plate (32).

3. The leather softness performance testing device according to claim 2, characterized in that: A linkage control mechanism (5) is provided on the frame (2). The linkage control mechanism (5) is connected to both the polygonal cylinder (3) and the two sets of extension plates (4) and is used to control the linkage between the rotation of the polygonal cylinder (3) and the sliding action of the extension plates (4).

4. The leather softness performance testing device according to claim 3, characterized in that: The polygonal cylinder (3) is rotatably connected to the rear wall of the frame (2) through a set of convex shafts (31) on the rear end wall, while another set of convex shafts (31) on the front end wall of the polygonal cylinder (3) is connected to the linkage control mechanism (5). A transverse sliding groove (21) is symmetrically provided on the left and right sides of a set of front convex shafts (31) on the front side of the frame (2). Each set of extension plates (4) is fixed with a slider (41) that can be slidably installed in a set of transverse sliding grooves (21) on the corresponding side. The linkage control mechanism (5) includes a slide cylinder (51) slidably sleeved on a set of front convex shafts (31), and a rotating ring (52) is rotatably sleeved on the slide cylinder (51). The two sides of the rotating ring (52) are hinged to the two sets of sliders (41) with connecting rods (53).

5. The leather softness performance testing device according to claim 4, characterized in that: A spring (54) is connected between the front wall of the polygonal cylinder (3) and the slide cylinder (51).

6. The leather softness performance testing device according to claim 2, characterized in that: The side of the extension plate (4) that contacts the polygonal tube (3) is an inclined surface adapted to it.

7. The leather softness performance testing device according to claim 2, characterized in that: The width of the slit (321) on the test plate (32) is greater than the width of the elongated stylus (11), and the length is greater than the length of the elongated stylus (11).

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