Leather anti-pulling testing device

Abstract

The embodiment of the utility model provides a leather anti-pulling testing device, and relates to the technical field of leather production. The leather pulling resistance testing device comprises a detection table, a pulling assembly is arranged at the top of the detection table, the pulling assembly comprises a first electric guide rail, the left side and the right side of the top of the detection table are both installed on the first electric guide rail, and the top of the first electric guide rail is connected with a moving plate; the bottom of the inner side of the moving plate is fixedly connected with a first pressing plate, through the arrangement of the pulling assembly, leather in a broken state after testing can be automatically clamped and straightened, it is ensured that the broken leather is kept straight during measurement, a user can conveniently and accurately measure the length, convenient conditions are provided for retesting the extension degree, and the testing efficiency is improved. The pulling assembly can stably clamp the two broken ends after the leather is broken and apply proper pulling force to straighten the leather, and inconsistency and errors possibly caused by manual supporting are avoided through the operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to leather production technical field especially is related to a leather anti -tugging testing device. BACKGROUND

[0002] The anti -tugging test of leather, also known as tear strength test or tensile strength test, is an important means to evaluate the durability and strength of leather under stress. This kind of test usually needs to use specially designed testing device, these devices can apply uniform and controllable tension, and can record relevant performance indicators, after the test is completed, the collected data need to be analyzed, including but not limited to maximum tear force, average tear force, tear energy and elongation rate. These data can help manufacturers understand the quality level of products, and provide basis for improving production process.

[0003] After completing the anti -tugging test of leather, when the user measures the length and short of the broken leather or carries out the extension test, when measuring the length and short, the user needs to manually support and support the broken leather, ensure that it is straight to accurately measure, this process not only increases the workload, but also may lead to measurement error, because manual operation is difficult to guarantee the consistency of each measurement, for the broken leather that needs to carry out the extension test, the user must put the leather into the testing device again to carry out new clamping and pulling. This step is tedious and time -consuming, especially when dealing with a large number of samples, it will significantly reduce the work efficiency, due to the above reasons, the user has to repeatedly carry out similar operation, which not only increases physical labor, but also may introduce more human error, affect the accuracy of test results, inconvenient to use. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of leather anti -tugging testing device, can avoid after completing the anti -tugging test of leather, user needs to manually support broken leather to measure the length and short, this increases workload and can lead to measurement error. For extension test, the user must re -clamp leather into testing device, significantly reduce the efficiency and increase the problem of physical labor.

[0005] The utility model provides a kind of leather anti-pulling test device, including detection table, the top of the detection table is fixedly connected with fixed platform, the surface of the fixed platform is installed with tension sensor, the top of the detection table is provided with pulling assembly, the pulling assembly includes first electric guide rail, the surface of the first electric guide rail is installed with the left and right sides of detection table top, the top of the first electric guide rail is connected with moving plate, the bottom of the inboard of the moving plate is fixedly connected with first pressing plate, the top of the moving plate is fixedly connected with first cylinder, the output of the first cylinder is penetrated to the inboard of moving plate and is fixedly connected with second pressing plate, tension sensor is embeddedly installed on the opposite side of the first pressing plate and second pressing, and the surface of second pressing plate is slidably connected with the inboard of moving plate.

[0006] In a specific embodiment, the front and rear sides of the detection table are each provided with a second electric guide rail, the surface of the second electric guide rail is connected with a plurality of positioning boxes, the surface of the positioning box is provided with a laser range finder body, the surface of the moving plate and the second electric guide rail is respectively provided with a first reflector and a second reflector matched with the laser range finder body, the top of the positioning box is bolted with a first motor, the inner cavity of the positioning box is rotatably connected with a threaded rod, and the top end of the threaded rod is connected with the output shaft of the first motor.

[0007] In a specific embodiment, the surface of the threaded rod is threadedly connected with a threaded block, and the surface of the threaded block is fixedly connected with a connecting plate.

[0008] In a specific embodiment, the surface of the connecting plate is fixedly connected with a second cylinder, the output end of the second cylinder is fixedly connected with a mounting box, and the inner cavity of the mounting box is rotatably connected with a rotating rod.

[0009] In a specific embodiment, the top of the mounting box is provided with a second motor, the surface of the rotating rod is fixedly connected with a guide frame, the surface of the rotating rod and the output shaft of the second motor are respectively connected with two belt pulleys, and the two belt pulleys are connected by a belt drive.

[0010] In a specific embodiment, the two sides of the inner cavity of the mounting box are slidably connected with guide rods, and the surface of the guide rod is slidably connected with the inner side of the guide frame.

[0011] In a specific embodiment, the end of the guide rod away from the guide frame is fixedly connected with a limiting plate, and the surface of the limiting plate is slidably connected with the surface of the mounting box.

[0012] The beneficial effects of the present application are: through the setting of the pulling assembly, the leather in the broken state after the test is completed can be automatically clamped and straightened, not only ensuring that the broken leather remains flat during measurement, facilitating the user to accurately measure the length, but also providing convenient conditions for retesting the stretch, the pulling assembly can stably clamp both ends of the broken leather after the leather is broken and apply appropriate tension to straighten the leather, which avoids the inconsistency and errors that may be caused by manual holding, since the leather has been straightened and fixed, the user can easily use the measuring tool to measure the length of the broken leather comprehensively and accurately without additional manual support, thereby improving work efficiency and data accuracy, when further testing the stretch of the broken leather is needed, the component does not need the user to clamp the leather into the test device again, which greatly simplifies the operation process, reduces repetitive labor and ensures the consistency of the test, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 It is a three-dimensional schematic view of the overall structure of the embodiment of the present application.

[0015] Figure 2 It is a three-dimensional schematic view of the overall structure of the pulling assembly of the embodiment of the present application.

[0016] Figure 3 It is a three-dimensional schematic view of the side view profile of the second moving plate structure of the embodiment of the present application.

[0017] Figure 4 It is a three-dimensional schematic view of the side view profile of the mounting box structure of the embodiment of the present application.

[0018] Figure 5 It is a three-dimensional schematic view of the split state of the guide rod and the limiting plate structure of the embodiment of the present application.

[0019] Figure 6 It is a three-dimensional schematic view of the mounting box structure of the embodiment of the present application.

[0020] Figure 7 It is a three-dimensional schematic view of the mounting box structure of the embodiment of the present application.

[0021] Figure 8 It is a three-dimensional schematic view of the mounting box structure of the embodiment of the present application.

[0022] Icon: 1, detection platform; 11, fixed platform; 12, tension sensor; 2, pulling assembly; 21, first electric guide rail; 22, moving plate; 23, first pressing plate; 24, first air cylinder; 25, second pressing plate; 26, second electric guide rail; 27, positioning box; 28, threaded rod; 29, first motor; 210, threaded block; 211, connecting plate; 212, second air cylinder; 213, mounting box; 214, rotating rod; 215, second motor; 216, pulley; 217, guide frame; 218, guide rod; 219, limiting plate; 220, laser range finder body; 221, first reflector; 222, second reflector. DETAILED DESCRIPTION

[0023] After completing the tensile test of the leather, the user needs to manually support the broken leather for length measurement, which increases the workload and may cause measurement errors. For the stretch test, the user must re-clamp the leather into the test device, significantly reducing efficiency and increasing physical labor problems. Therefore, the inventor provides a leather tensile test device through the setting of the pulling assembly, which can automatically clamp and straighten the broken leather after testing, ensuring that it remains flat during measurement, facilitating accurate length measurement for the user, and avoiding errors caused by manual operation, thereby solving the above-mentioned defects.

[0024] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0025] Please refer to Figures 1 to 8 The embodiment of the present application provides a leather tensile test device, which comprises a detection platform 1, the top of the detection platform 1 is fixedly connected with a fixed platform 11, the surface of the fixed platform 11 is provided with a tension sensor 12, the front side of the tension sensor 12 is provided with a hook convenient for hooking leather, so as to facilitate the tensile test of the leather, and the tension sensor 12 is electrically connected with an external information device, so as to facilitate remote transmission of the tensile value, the top of the detection platform 1 is provided with a pulling assembly 2, the pulling assembly 2 comprises a first electric guide rail 21, the surface of the first electric guide rail 21 is installed on the left and right sides of the top of the detection platform 1, the total number of the first electric guide rails 21 is four, two are a group, and there are two groups, and the two groups of first electric guide rails 21 are symmetrically arranged, so as to facilitate the left and right tensile test of the leather, the top of the first electric guide rail 21 is connected with a moving plate 22, the bottom of the inner side of the moving plate 22 is fixedly connected with a first pressing plate 23, the top of the moving plate 22 is fixedly connected with a first air cylinder 24, the output end of the first air cylinder 24 penetrates to the inner side of the moving plate 22 and is fixedly connected with a second pressing plate 25, and the surface of the second pressing plate 25 is slidably connected with the inner side of the moving plate 22, wherein the surface of the first pressing plate 23 and the second pressing plate 25 is provided with a plurality of friction blocks for increasing friction.

[0026] Please refer to Figures 2 to 8 The front and back of the detection table 1 are provided with second electric rails 26, the surfaces of the second electric rails 26 are connected with a plurality of positioning boxes 27, the surfaces of the positioning boxes 27 are provided with laser range finders 220, the moving plate 22 and the surfaces of the second electric rails 26 are respectively provided with first and second reflecting plates 221 and 222 used in cooperation with the laser range finders 220, the top of the positioning box 27 is bolted with a first motor 29, the inner cavity of the positioning box 27 is rotatably connected with a threaded rod 28, the top end of the threaded rod 28 is connected with the output shaft of the first motor 29, the surface of the threaded rod 28 is provided with external threads of internal threads for easy driving, the surface of the threaded rod 28 is threadedly connected with a threaded block 210, the area of the threaded block 210 in contact with the threaded rod 28 is provided with matching internal threads, and the side of the positioning box 27 is provided with a through cavity for facilitating the up-down movement of the threaded block 210, the surface of the threaded block 210 is fixedly connected with a connecting plate 211, the surface of the connecting plate 211 is fixedly connected with a second air cylinder 212, the output end of the second air cylinder 212 is fixedly connected with a mounting box 213, and the top of the mounting box 213 is provided with a visual sensor, so as to facilitate the detection of the stretching degree of the leather after being pulled and stretched.

[0027] Please refer to Figures 2 to 6 The inner cavity of the mounting box 213 is rotatably connected with a rotating rod 214, the top of the mounting box 213 is provided with a second motor 215, the surface of the rotating rod 214 is fixedly connected with a guide frame 217, the surface of the rotating rod 214 and the output shaft of the second motor 215 are respectively connected with two belt pulleys 216, the two belt pulleys 216 are drivingly connected through a belt, the two sides of the inner cavity of the mounting box 213 are slidingly connected with guide rods 218, the surface of the guide rods 218 is slidingly connected with the inner side of the guide frame 217, the end of the guide rods 218 away from the guide frame 217 is fixedly connected with a limiting plate 219, the side of the mounting box 213 is provided with a guide cavity matched with the guide rods 218, and the surface of the limiting plate 219 is slidingly connected with the surface of the mounting box 213.

[0028] Specifically, the operator first places one side of the leather against the hook on the tension sensor 12, and after placing, places the leather sample to be tested on the first pressing plate 23, ensures that the leather is evenly distributed on both sides, starts the first air cylinder 24, and the output end pushes the second pressing plate 25 to move downward, and cooperates with the first pressing plate 23 to apply uniform pressure to the leather of different thicknesses, realizes stable clamping, and after ensuring that the leather is firmly fixed, the other side of the leather is pulled by the first pressing plate 23 and the second pressing plate 25, and then the pulling value is recorded by the tension sensor 12, and two groups of first electric guide rails 21 are started to drive the respective connected first pressing plate 23 and second pressing plate 25 to move in opposite directions, when the leather breaks, to evaluate the stretch degree, first start the second motor 215 before testing the leather pulling, rotate the rotating rod 214 through the belt pulley 216, and then rotate the guide frame 217, the guide frame 217 pushes the two guide rods 218 to move in opposite directions during rotation, and simultaneously carries the limiting plate 219 to move synchronously, thereby realizing clamping of one side of the broken leather, then start the first motor 29, which drives the threaded rod 28 to rotate, and pushes the threaded block 210 and the connected limiting plate 219 to move up and down to the appropriate position by using the screw transmission principle to adapt to the needs of different heights, finally, start the second air cylinder 212 to push the installation box 213 to move transversely to one side of the leather, and adjust the position of the limiting plate 219 in cooperation with the second electric guide rail 26, so that the limiting plate 219 clamps both sides of the leather before the leather pulling test, then start the first electric guide rail 21 to drive the clamped leather to move straight, thereby pulling the side of the straightened leather after breaking, and in the moving process, the distance is measured by using the laser range finder body 220 and the first and second reflecting plates 221 and 222.

[0029] In summary, the working principle of the leather tensile test device in the embodiment of the present application is as follows: first, the user places both sides of the leather to be tested for tensile resistance into the pulling assembly 2, then starts the pulling assembly 2 to pull both sides of the leather, and detects the pulling value at the same time through the tension sensor 12, after pulling, if the leather is in a broken state, the pulling assembly 2 is used to clamp and straighten one side of the broken leather, and further testing of the stretched degree of the broken leather can also be performed through the pulling assembly 2, avoiding the need for the user to re-clamp and measure the leather.

[0030] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously modified and changed. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A leather tensile strength testing device, comprising a testing table (1), characterized in that, A fixed platform (11) is fixedly connected to the top of the testing platform (1). A tension sensor (12) is installed on the surface of the fixed platform (11). A pulling assembly (2) is provided on the top of the testing platform (1). The pulling assembly (2) includes a first electric guide rail (21). The surface of the first electric guide rail (21) is installed on the left and right sides of the top of the testing platform (1). A moving plate (22) is connected to the top of the first electric guide rail (21). A first pressure plate (23) is fixedly connected to the bottom of the inner side of the moving plate (22). A first cylinder (24) is fixedly connected to the top of the moving plate (22). The output end of the first cylinder (24) extends through to the inner side of the moving plate (22) and is fixedly connected to a second pressure plate (25). The surface of the second pressure plate (25) is slidably connected to the inner side of the moving plate (22).

2. The leather tensile strength testing device according to claim 1, characterized in that, The front and rear sides of the testing platform (1) are equipped with second electric guide rails (26). Several positioning boxes (27) are connected to the surface of the second electric guide rails (26). A laser rangefinder body (220) is installed on the surface of the positioning box (27). A first reflector (221) and a second reflector (222) that cooperate with the laser rangefinder body (220) are respectively installed on the surface of the moving plate (22) and the second electric guide rail (26). A first motor (29) is bolted to the top of the positioning box (27). A threaded rod (28) is rotatably connected to the inner cavity of the positioning box (27). The top end of the threaded rod (28) is connected to the output shaft of the first motor (29).

3. The leather tensile strength testing device according to claim 2, characterized in that, The threaded rod (28) has a threaded block (210) threadedly connected to its surface, and a connecting plate (211) is fixedly connected to the surface of the threaded block (210).

4. The leather tensile strength testing device according to claim 3, characterized in that, A second cylinder (212) is fixedly connected to the surface of the connecting plate (211), and a mounting box (213) is fixedly connected to the output end of the second cylinder (212). A rotating rod (214) is rotatably connected to the inner cavity of the mounting box (213).

5. The leather tensile strength testing device according to claim 4, characterized in that, A second motor (215) is installed on the top of the mounting box (213). A guide frame (217) is fixedly connected to the surface of the rotating rod (214). Two pulleys (216) are respectively connected to the surface of the rotating rod (214) and the output shaft of the second motor (215), and the two pulleys (216) are connected by belt drive.

6. The leather tensile strength testing device according to claim 5, characterized in that, Guide rods (218) are slidably connected to both sides of the inner cavity of the mounting box (213), and the surface of the guide rods (218) is slidably connected to the inner side of the guide frame (217).

7. The leather tensile strength testing device according to claim 6, characterized in that, The guide rod (218) is fixedly connected to a limiting plate (219) at one end away from the guide frame (217), and the surface of the limiting plate (219) is slidably connected to the surface of the mounting box (213).

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