Elastic material tension detection mechanism

Abstract

The utility model discloses a kind of elastic material tension detection mechanism, including base and the clamping seat of sliding connection on base;The one end of the base is equipped with fixed base;Fixed base and clamping seat are equipped with the clamping device of clamping cloth two ends respectively;The one end of the base away from fixed base is equipped with counterweight mechanism connected with clamping seat.The utility model provides constant, accurate quantization tension by setting counterweight mechanism, and this constant force loading mode can effectively simulate the sustained, stable tension that material is subjected to in actual use, so that the elastic deformation measurement and data of material are more accurate and reliable.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a tensile testing mechanism for elastic materials. Background Technology

[0002] Currently, the elasticity testing of elastic fabrics for disposable hygiene products uses a common clamping device, but in actual use, the experience is very poor. The clamping is inconvenient, the data is not intuitive, and it causes permanent damage to the material.

[0003] Therefore, it is necessary to design a tensile testing mechanism for elastic materials to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tensile testing mechanism for elastic materials.

[0005] The technical solution of this utility model is: an elastic material tensile testing mechanism, including a base and a clamping seat slidably connected to the base; a fixed seat is provided at one end of the base; clamping devices for clamping both ends of the fabric are respectively provided on the fixed seat and the clamping seat; a counterweight mechanism connected to the clamping seat is provided at the end of the base away from the fixed seat.

[0006] The base is provided with a mounting seat at the end away from the fixed seat; guide posts are provided between the two ends of the mounting seat and the two ends of the fixed seat; and through holes are provided at both ends of the clamping seat to slide with the two guide posts.

[0007] The clamping device includes a fixed plate and a vertical clamp disposed on the fixed plate; a clamping plate is fixed on the clamping end of the vertical clamp.

[0008] The clamping plate has a clamping pad at its bottom; the bottom of the clamping pad is corrugated.

[0009] The counterweight mechanism includes a fixed frame; the top of the fixed frame is provided with an outwardly extending extension; both the extension and the bottom of the fixed frame are provided with guide wheels; a pull rope is wound around the guide wheel; one end of the pull rope is connected to the clamping seat, and the other end is connected to the counterweight seat.

[0010] The base is provided with scale lines (8) along the direction of movement of the clamping seat.

[0011] The base has multiple limiting holes evenly distributed along its length; limiting pins for limiting the position of the clamping seat are inserted into the limiting holes.

[0012] The present invention has the following beneficial effects by adopting the above technical solution: (1) The present invention provides a constant and precisely quantifiable tensile force by setting a counterweight mechanism. This constant force loading method can effectively simulate the continuous and stable tensile force that the material is subjected to in actual use, making the elastic deformation measurement and data of the material more accurate and reliable.

[0013] (2) The entire mechanism of this utility model is mainly composed of a base, a clamping base, a fixed base and a counterweight mechanism. The mechanical structure is simple and does not require complex motors, sensors or control systems, which greatly reduces manufacturing costs and maintenance difficulties. Operators only need to place the sample, add counterweights and read the scale to complete the test, which simplifies the operation process and reduces the professional skill requirements for operators.

[0014] (3) This utility model adopts a clamping device that combines vertical clamps with clamping plates and clamping pads. The corrugated design at the bottom of the clamping pad can greatly increase the friction with the surface of the fabric sample, ensuring that the two ends of the sample are firmly clamped during long-term or high-strength tensile tests, effectively preventing slippage and test failure. At the same time, compared with direct metal contact, the clamping pad can better protect the sample surface and avoid clamping marks.

[0015] (4) The scale line (8) set on the base of this utility model allows the operator to directly read the displacement of the clamping seat, so as to quickly and intuitively obtain the elongation of the sample without the need for an additional displacement sensor.

[0016] (5) The present invention can flexibly set the starting position and maximum stroke of the clamping seat through the limiting hole and the limiting post, which can not only adapt to samples of different lengths, but also play the role of mechanical hard limiting, preventing the counterweight from being pulled down too much and causing the mechanism to be damaged or the sample to break and the counterweight block to shake violently, thus improving the safety of the equipment.

[0017] (6) The clamping seat of this utility model forms a high-precision guiding motion pair through the sliding fit between the through hole and the guide post, which ensures that the clamping seat moves smoothly along a straight line during the stretching process without shaking or jamming, and minimizes unnecessary frictional resistance, further ensuring the accuracy of the test force transmission and the consistency of the results. Attached Figure Description

[0018] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] The labels in the attached diagram are:

[0021] 1. Base, 2. Clamping seat, 3. Fixing seat, 4. Clamping device, 4-1. Fixing plate, 4-2. Vertical clamp, 4-3. Clamping plate, 4-4. Clamping pad, 5. Counterweight mechanism, 5-1. Fixing frame, 5-2. Extension, 5-3. Guide wheel, 5-4. Pull rope, 5-5. Counterweight seat, 6. Mounting seat, 7. Guide post, 8. Scale line. Detailed Implementation

[0022] (Example 1)

[0023] See Figure 1 This embodiment of an elastic material tensile testing mechanism includes a base 1 and a clamping seat 2 slidably connected to the base 1. A fixed seat 3 is provided at one end of the base 1. Clamping devices 4 for clamping both ends of the fabric are respectively provided on the fixed seat 3 and the clamping seat 2. A counterweight mechanism 5 connected to the clamping seat 2 is provided at the end of the base 1 away from the fixed seat 3. This elastic material tensile testing mechanism constitutes a complete testing system. The fixed seat 3 and the movable clamping seat 2 fix the two ends of the sample respectively, and the counterweight mechanism 5 applies a constant tensile force to the clamping seat 2, thereby achieving tensile testing of the elastic material. Its core advantage lies in using gravity as the tensile force source, resulting in a constant force value, no calibration required, and no energy consumption, making the testing process stable and the results accurate and reliable.

[0024] Furthermore, a mounting base 6 is provided at the end of the base 1 away from the fixed base 3; guide posts 7 are provided between both ends of the mounting base 6 and both ends of the fixed base 3; and through holes are provided at both ends of the clamping base 2 to slide with the two guide posts 7. In this embodiment, a high-precision sliding pair is formed by the two guide posts 7, which provides precise linear guidance for the clamping base 2, ensuring that it can only move smoothly in the horizontal direction when under force, effectively preventing skewing, jamming, or shaking, thereby ensuring the uniqueness of the tensile force direction and the accuracy of the test data, while reducing unnecessary frictional losses.

[0025] Furthermore, the clamping device 4 includes a fixed plate 4-1 and a vertical clamp 4-2 disposed on the fixed plate 4-1; a clamping plate 4-3 is fixed to the clamping end of the vertical clamp 4-2. In this embodiment, the clamping device 4 adopts the method of driving the clamping plate 4-3 with the vertical clamp 4-2. Its effect is that the clamping force is large and the operation is convenient. A huge mechanical pressure can be generated by pressing down the clamp handle, ensuring that various thicknesses and smooth elastic materials can be firmly clamped, preventing them from slipping during the test and ensuring the effectiveness of the test.

[0026] Furthermore, the clamping plate 4-3 has a clamping pad 4-4 at its bottom; the bottom of the clamping pad 4-4 is corrugated. In this embodiment, the clamping pad 4-4 is preferably made of elastic materials such as rubber or polyurethane. Its function is to protect the sample surface from being crushed by the metal clamping plate 4-3, while the corrugated structure at its bottom increases the friction of the contact surface, completely eliminating slippage. It is particularly suitable for smooth or highly elastic fabrics.

[0027] Furthermore, the counterweight mechanism 5 includes a fixed frame 5-1; the top of the fixed frame 5-1 is provided with an outwardly extending extension 5-2; both the extension 5-2 and the bottom of the fixed frame 5-1 are provided with guide wheels 5-3; a pull rope 5-4 is wound around the guide wheel 5-3; one end of the pull rope 5-4 is connected to the clamping seat 2, and the other end is connected to the counterweight seat 5-5. This embodiment, through the structure of double guide wheels 5-3 at the top and bottom, changes the direction of the pulling force, transforming the vertically downward gravity into a horizontal pulling force. Its effect is to fully utilize space, making the structure more compact, and providing an absolutely constant and accurate pulling force value. Users only need to replace the counterweight to change the test force value, which is simple and intuitive.

[0028] Furthermore, the base 1 is provided with scale lines 8 along the direction of movement of the clamping seat 2. In this embodiment, the scale lines 8 provide a direct and visual displacement measurement tool. The operator can easily read the distance the clamping seat 2 moves under tension, i.e., the elongation of the sample, and thus quickly calculate key performance parameters such as elongation rate. This eliminates the need to rely on expensive electronic sensors or digital display systems, greatly reducing costs and simplifying operation.

[0029] Furthermore, the base 1 has multiple limiting holes evenly distributed along its length; limiting posts for limiting the clamping seat 2 are inserted into the limiting holes. In this embodiment, the starting position and maximum stroke of the clamping seat 2 can be flexibly set through the limiting holes and limiting posts, which can not only adapt to samples of different lengths, but also play a role in mechanical hard limiting, preventing the counterweight from shaking violently when the counterweight is pulled down excessively, causing damage to the mechanism or sample breakage, thus improving the safety of the equipment.

[0030] The working principle of this embodiment:

[0031] First, place one end of the elastic material to be tested under the clamping device 4 of the fixed base 3, and turn the clamp handle to firmly press the end onto the fixed plate 4-1 through the clamping plate 4-3 and the corrugated clamping pad 4-4. Straighten the other end of the material and pass it under the clamping base 2, and clamp it with the clamping device 4 on it as well. At this time, the sample is in an initial state of being straight but not under tension. The operator can record the initial position of the clamping base 2 at this time through the scale line (8) on the base 1. Then, add a known weight to the counterweight base 5-5, and the elastic material is pulled apart. Record the distance that is pulled apart, and then calculate the elongation ratio.

[0032] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tensile testing mechanism for elastic materials, characterized in that: It includes a base (1) and a clamping seat (2) slidably connected to the base (1); a fixed seat (3) is provided at one end of the base (1); clamping devices (4) for clamping both ends of the fabric are respectively provided on the fixed seat (3) and the clamping seat (2); a counterweight mechanism (5) connected to the clamping seat (2) is provided at the end of the base (1) away from the fixed seat (3).

2. The elastic material tensile testing mechanism according to claim 1, characterized in that: The base (1) is provided with a mounting seat (6) at one end away from the fixed seat (3); guide posts (7) are provided between both ends of the mounting seat (6) and both ends of the fixed seat (3); and through holes that slide with the two guide posts (7) are provided at both ends of the clamping seat (2).

3. The elastic material tensile testing mechanism according to claim 1, characterized in that: The clamping device (4) includes a fixed plate (4-1) and a vertical clamp (4-2) disposed on the fixed plate (4-1); a clamping plate (4-3) is fixed on the clamping end of the vertical clamp (4-2).

4. The elastic material tensile testing mechanism according to claim 3, characterized in that: The clamping plate (4-3) has a clamping pad (4-4) at its bottom; the bottom of the clamping pad (4-4) is corrugated.

5. The elastic material tensile testing mechanism according to claim 1, characterized in that: The counterweight mechanism (5) includes a fixed frame (5-1); the top of the fixed frame (5-1) is provided with an outwardly extending extension (5-2); both the extension (5-2) and the bottom of the fixed frame (5-1) are provided with guide wheels (5-3); a pull rope (5-4) is wound on the guide wheel (5-3); one end of the pull rope (5-4) is connected to the clamping seat (2), and the other end is connected to the counterweight seat (5-5).

6. The elastic material tensile testing mechanism according to claim 1, characterized in that: The base (1) is provided with scale lines (8) along the movement direction of the clamping seat (2).

7. The elastic material tensile testing mechanism according to claim 1, characterized in that: The base (1) has multiple limiting holes evenly distributed along its length; the limiting holes are fitted with limiting posts for limiting the clamping seat (2).

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