Breaking test extension device based on spun-dyed fabric

Abstract

The utility model relates to the technical field of fabric production especially based on the breaking test extension device of colour spun fabric, including frame, be provided with test mechanism on the frame and be used for loading to fabric, be provided with fixed mechanism on the frame and be used for clamping and positioning fabric, fixed mechanism includes: main part subassembly, including fixed base plate on the left end inner wall of frame and test mechanism respectively, the inside middle two sides of base plate all are equipped with the inside guide rod of sliding installation, the lower clamp seat is fixed between two sides inside guide rod upper end, and the lower chuck is installed in the lower clamp seat top, adopt symmetrical synchronous clamping mechanism, realize the reverse movement of upper and lower chuck through linkage mechanism, ensure that fabric is evenly stressed and does not deviate, servo motor drive system provides stable power, allows the free movement of moving end while keeping fixed end stationary, makes fabric both ends reach predetermined clamping force synchronously, guarantees the test accuracy and protects fabric surface characteristic.

Description

Technical Field

[0001] This utility model relates to the field of fabric production technology, specifically to a tear testing and expansion device for yarn-dyed fabrics. Background Technology

[0002] Yarn-dyed fabrics, a special type of textile made by blending fibers of different colors, are widely used in clothing, home textiles, and other fields due to their unique color effects and textures. With the development of textile technology, the variety of yarn-dyed fabrics is increasing, and the demand for mechanical property testing is also growing.

[0003] According to CN219348436U, a cotton fabric tensile strength testing device is disclosed. This technology discloses a technical solution including a base, linear slide rails parallel to both sides of the upper surface of the base, a first testing plate, a second testing plate, a tensile device, a tension sensor, a fixing arm, and a distance adjustment device. It has the technical effect of "being able to quickly complete the laying and fixing of the fabric, thereby significantly improving the testing efficiency, and being able to adapt to the tensile strength testing of fabrics of various sizes".

[0004] Existing fabric tear testing devices have a problem of asynchronous clamping when testing yarn-dyed fabrics. Due to the special fiber mixing structure and surface characteristics of yarn-dyed fabrics, traditional clamping mechanisms are prone to uneven force on both ends of the fabric during the clamping process, causing the fabric to shift or twist during the test, which affects the accuracy of the test results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a bursting test expansion device based on yarn-dyed fabrics. It adopts a symmetrical synchronous clamping mechanism, and the upper and lower clamps move in opposite directions through a linkage mechanism to ensure that the fabric is evenly stressed and does not shift. The servo motor drive system provides stable power, allowing the moving end to move freely while keeping the fixed end stationary, so that both ends of the fabric reach the predetermined clamping force synchronously, which not only ensures the test accuracy but also protects the surface properties of the fabric.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bursting test expansion device for yarn-dyed fabrics, comprising a frame, a test mechanism mounted on the frame for applying load to the fabric, and a fixing mechanism mounted on the frame for clamping and positioning the fabric, the fixing mechanism comprising:

[0007] The main components include a base plate fixed to the inner wall of the left end of the frame and the test mechanism respectively. Inner guide rods are slidably installed through both sides of the middle of the base plate. A lower clamp is fixed between the upper ends of the two inner guide rods. A lower clamp head is installed on the top of the lower clamp. An inner connecting seat is fixed between the lower ends of the two inner guide rods. Outer guide rods are slidably installed through both sides of the base plate. An upper clamp is fixed between the upper ends of the two outer guide rods. An upper clamp head is installed at the bottom of the upper clamp. An outer connecting seat is fixed between the lower ends of the two outer guide rods. A rotating rod is provided between the outer connecting seat and the inner connecting seat. An inner connecting rod is hinged to the upper end of the rotating rod, and the upper end of the inner connecting rod is hinged to the middle of the inner connecting seat. An outer connecting rod is hinged to the lower end of the rotating rod, and the lower end of the outer connecting rod is hinged to the middle of the outer connecting seat.

[0008] The power unit is mounted on the main body and is used to drive the upper and lower chucks to achieve synchronous opening and closing movements.

[0009] Preferably, the power assembly includes a mounting plate fixed to the bottom of a base plate on a frame, a servo motor mounted on the outer wall of the mounting plate, a shaft fixed to the output end of the servo motor, and the shaft connected to a rotating rod.

[0010] Preferably, the shaft and the rotating rod are connected by a sliding key, which enables power transmission and axial relative sliding.

[0011] Preferably, the clamping surfaces of both the upper and lower clamps are provided with anti-slip textures.

[0012] Preferably, the testing mechanism includes electric lead screws fixed on both sides of the upper end inside the frame, a slide is fixed between the sliders of the electric lead screws on both sides, a balance bar is slidably installed through both ends of the slide, a connecting frame is fixed between the two balance bars, and one of the base plates is fixed on the connecting frame.

[0013] Preferably, the test mechanism further includes a pressure sensor installed on the upper end of the slide, and the detection end of the pressure sensor is fixed to the connecting frame, and a displacement sensor is installed on the pressure sensor.

[0014] Beneficial effects

[0015] This invention provides a bursting test expansion device for yarn-dyed fabrics. Compared with the prior art, it has the following advantages:

[0016] 1. When the rotating rod rotates, it drives the inner connecting seat to move upward through the inner connecting rod. The inner connecting seat drives the lower clamp on the lower clamp to move upward through the inner guide rod. At the same time, the rotating rod also drives the outer connecting seat to move downward through the outer connecting rod. The outer connecting seat drives the upper clamp on the upper clamp to move downward through the outer guide rod, so that the lower clamp and the lower clamp can clamp and fix the fabric. The symmetrical clamping mechanism effectively avoids the fabric from shifting or twisting during the test, and at the same time protects the surface properties of the yarn-dyed fabric from being damaged.

[0017] 2. The output of the servo motor drives the shaft to rotate the two rotating rods synchronously, thereby achieving synchronous clamping and fixing of both ends of the fabric. This ensures that both ends of the fabric simultaneously reach the predetermined clamping force, avoiding distortion of test data. Furthermore, it ensures that power is transmitted to the rotating rods through the shaft, while allowing the rotating rods to slide axially relative to the shaft. This allows the main components fixed to the frame to remain stationary while the main components fixed to the testing mechanism can move freely. This ensures the stability of power transmission and provides the necessary degrees of freedom for the movement of the testing mechanism, enabling the fabric to be subjected to uniform force during the test. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the testing mechanism in this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing mechanism in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the main component in this utility model.

[0022] In the diagram: 1. Frame; 2. Test mechanism; 21. Electric lead screw; 22. Slide; 23. Pressure sensor; 24. Connecting frame; 25. Balance bar; 26. Displacement sensor; 3. Fixing mechanism; 31. Main assembly; 311. Base plate; 312. Inner guide rod; 313. Lower clamp; 314. Lower chuck; 315. Inner connecting seat; 316. Outer guide rod; 317. Upper clamp; 318. Upper chuck; 319. Outer connecting seat; 3110. Rotating rod; 3111. Inner connecting rod; 3112. Outer connecting rod; 32. Power assembly; 321. Mounting plate; 322. Servo motor; 323. Shaft. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figure 1 - Figure 4This utility model provides a technical solution: a bursting test expansion device based on yarn-dyed fabric, including a frame 1, a test mechanism 2 on the frame 1 for applying load to the fabric, and a fixing mechanism 3 on the frame 1 for clamping and positioning the fabric. The fixing mechanism 3 includes:

[0025] The main component 31 includes a base plate 311 fixed to the inner wall of the left end of the frame 1 and the test mechanism 2 respectively. Inner guide rods 312 are slidably mounted through both sides of the center of the base plate 311. A lower clamp 313 is fixed between the upper ends of the inner guide rods 312 on both sides. A lower clamp head 314 is mounted on the top of the lower clamp 313. An inner connecting seat 315 is fixed between the lower ends of the inner guide rods 312 on both sides. Outer guide rods 316 are slidably mounted through both sides of the base plate 311. A lower connecting seat 315 is fixed between the upper ends of the outer guide rods 316 on both sides. There is an upper clamping seat 317, and an upper clamping head 318 is installed at the bottom of the upper clamping seat 317. An outer connecting seat 319 is fixed between the lower ends of the outer guide rods 316 on both sides. A rotating rod 3110 is provided between the outer connecting seat 319 and the inner connecting seat 315. An inner connecting rod 3111 is hinged to the upper end of the rotating rod 3110, and the upper end of the inner connecting rod 3111 is hinged to the middle of the inner connecting seat 315. An outer connecting rod 3112 is hinged to the lower end of the rotating rod 3110, and the lower end of the outer connecting rod 3112 is hinged to the middle of the outer connecting seat 319.

[0026] The power assembly 32 is mounted on the main body assembly 31 and is used to drive the upper chuck 318 and the lower chuck 314 to achieve synchronous opening and closing movements.

[0027] In this embodiment, when the rotating rod 3110 rotates, it drives the inner connecting seat 315 to move upward through the inner connecting rod 3111. The inner connecting seat 315 drives the lower clamp 314 on the lower clamp 313 to move upward through the inner guide rod 312. At the same time, the rotating rod 3110 also drives the outer connecting seat 319 to move downward through the outer connecting rod 3112. The outer connecting seat 319 drives the upper clamp 318 on the upper clamp 317 to move downward through the outer guide rod 316, so that the lower clamp 313 and the lower clamp 314 can clamp and fix the fabric. The symmetrical clamping mechanism effectively avoids the fabric from shifting or twisting during the test, and at the same time protects the surface properties of the yarn-dyed fabric from being damaged.

[0028] Specifically, the power assembly 32 includes a mounting plate 321 at the bottom of a base plate 311 fixed on the frame 1. A servo motor 322 is mounted on the outer wall of the mounting plate 321. A shaft 323 is fixed to the output end of the servo motor 322, and the shaft 323 is connected to the rotating rod 3110.

[0029] In this embodiment, the output end of the servo motor 322 drives the shaft 323 to drive the two rotating rods 3110 to rotate synchronously, thereby achieving synchronous clamping and fixing of both ends of the fabric, so that both ends of the fabric simultaneously reach the predetermined clamping force, avoiding distortion of test data.

[0030] Specifically, the shaft 323 and the rotating rod 3110 are connected by a sliding key, which enables power transmission and axial relative sliding.

[0031] In this embodiment, on the one hand, the power is ensured to be transmitted to the rotating rod 3110 through the shaft 323, and on the other hand, the rotating rod 3110 is allowed to slide axially relative to the shaft 323; so that the main body component 31 fixed on the frame 1 remains stationary while the main body component 31 fixed on the test mechanism 2 can move freely; thus ensuring the stability of power transmission and providing the necessary degrees of freedom for the movement of the test mechanism 2, so that the fabric can be subjected to uniform force during the test.

[0032] Specifically, both the upper chuck 318 and the lower chuck 314 have anti-slip textures on their clamping surfaces.

[0033] In this embodiment, the anti-slip texture effectively solves the problem of fabric slippage or displacement during the test by increasing the friction coefficient between the clamping surface and the yarn-dyed fabric; when the clamping force is applied, multi-point contact is formed, which not only ensures the firm fixation of the fabric, but also avoids fabric damage caused by excessive clamping force.

[0034] Specifically, the test mechanism 2 includes electric lead screws 21 fixed on both sides of the upper end inside the frame 1. A slide 22 is fixed between the sliders of the electric lead screws 21 on both sides. A balance bar 25 is slidably installed through both ends of the slide 22. A connecting frame 24 is fixed between the two balance bars 25, and one of the base plates 311 is fixed on the connecting frame 24.

[0035] In this embodiment, the main body component 31 on the frame 1 and the main body component 31 on the test mechanism 2 firmly clamp the two ends of the fabric to form a stable tensile testing system; the electric lead screws 21 arranged symmetrically on both sides ensure the smooth movement of the slide 22 through synchronous drive, and the balance bar 25 passes through the slide 22 and forms a stable guide mechanism with the connecting frame 24, effectively preventing deviation and vibration during the movement.

[0036] Specifically, the test mechanism 2 also includes a pressure sensor 23 installed on the upper end of the slide 22, and the detection end of the pressure sensor 23 is fixed to the connecting frame 24. A displacement sensor 26 is installed on the pressure sensor 23.

[0037] In this embodiment, the pressure sensor 23 is directly mounted on the upper end of the slide 22, and its detection end is rigidly connected to the connecting frame 24, which can accurately measure the load applied to the fabric during the stretching process in real time; the displacement sensor 26 is integrated on the pressure sensor 23 and synchronously monitors the displacement change of the connecting frame 24; it can accurately capture the mechanical response of the fabric from initial deformation to final rupture, providing a reliable experimental data basis for analyzing the structural characteristics and mechanical behavior of yarn-dyed fabrics.

[0038] The working principle and usage process of this utility model are as follows: First, the output end of the servo motor 322 drives the shaft 323 to drive the two rotating rods 3110 to rotate synchronously. When the rotating rods 3110 rotate, the inner connecting rod 3111 drives the inner connecting seat 315 to move upward. The inner connecting seat 315 drives the lower clamp 314 on the lower clamp 313 to move upward through the inner guide rod 312. At the same time, the rotating rods 3110 also drive the outer connecting seat 319 to move downward through the outer connecting rod 3112. The outer connecting seat 319 drives the upper clamp 318 on the upper clamp 317 to move downward through the outer guide rod 316, so that the lower clamp 313 and the lower clamp 314 can clamp and fix the fabric. The symmetrical clamping mechanism effectively avoids the fabric from shifting or twisting during the test, while protecting the surface properties of the yarn-dyed fabric from damage. Furthermore, by clamping and fixing both ends of the fabric synchronously, both ends of the fabric can reach the predetermined clamping force at the same time, avoiding the distortion of test data.

[0039] The main components 31 on frame 1 and test mechanism 2 firmly clamp the two ends of the fabric, forming a stable tensile testing system. The electric lead screws 21 arranged symmetrically on both sides ensure the smooth movement of the slide 22 through synchronous drive. The balance bar 25 passes through the slide 22 and forms a stable guide mechanism with the connecting frame 24, effectively preventing deviation and vibration during the movement. The pressure sensor 23 is directly installed on the upper end of the slide 22, and its detection end is rigidly connected to the connecting frame 24, which can accurately measure the load applied to the fabric during the tensile process in real time. The displacement sensor 26 is integrated on the pressure sensor 23 and synchronously monitors the displacement change of the connecting frame 24. It can accurately capture the mechanical response of the fabric from the initial deformation to the final rupture, providing a reliable experimental data basis for analyzing the structural characteristics and mechanical behavior of yarn-dyed fabrics.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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 bursting test expansion device based on yarn-dyed fabric, comprising a frame (1), characterized in that: The frame (1) is provided with a testing mechanism (2) for applying load to the fabric, and the frame (1) is provided with a fixing mechanism (3) for clamping and positioning the fabric. The fixing mechanism (3) includes: The main component (31) includes a base plate (311) fixed to the inner wall of the left end of the frame (1) and the test mechanism (2) respectively. Inner guide rods (312) are slidably mounted through both sides of the inner center of the base plate (311). A lower clamp (313) is fixed between the upper ends of the inner guide rods (312). A lower clamp head (314) is mounted on the top of the lower clamp (313). An inner connecting seat (315) is fixed between the lower ends of the inner guide rods (312). Outer guide rods (316) are slidably mounted through both sides of the inner center of the base plate (311). A connecting seat (315) is fixed between the upper ends of the outer guide rods (316). The upper clamp (317) has an upper clamp (318) installed at the bottom. An outer connecting seat (319) is fixed between the lower ends of the outer guide rods (316) on both sides. A rotating rod (3110) is provided between the outer connecting seat (319) and the inner connecting seat (315). An inner connecting rod (3111) is hinged to the upper end of the rotating rod (3110), and the upper end of the inner connecting rod (3111) is hinged to the middle of the inner connecting seat (315). An outer connecting rod (3112) is hinged to the lower end of the rotating rod (3110), and the lower end of the outer connecting rod (3112) is hinged to the middle of the outer connecting seat (319). The power assembly (32) is mounted on the main body assembly (31) and is used to drive the upper chuck (318) and the lower chuck (314) to achieve synchronous opening and closing movements.

2. The tear test expansion device based on yarn-dyed fabric according to claim 1, characterized in that: The power assembly (32) includes a mounting plate (321) at the bottom of a base plate (311) fixed on a frame (1). A servo motor (322) is mounted on the outer wall of the mounting plate (321). A shaft (323) is fixed to the output end of the servo motor (322), and the shaft (323) is connected to a rotating rod (3110).

3. The tear test expansion device based on yarn-dyed fabric according to claim 2, characterized in that: The shaft (323) and the rotating rod (3110) are connected by a sliding key, enabling power transmission and axial relative sliding.

4. The tear test expansion device based on yarn-dyed fabric according to claim 1, characterized in that: The clamping surfaces of the upper chuck (318) and the lower chuck (314) are both provided with anti-slip textures.

5. The tear test expansion device based on yarn-dyed fabric according to claim 1, characterized in that: The test mechanism (2) includes electric lead screws (21) fixed on both sides of the upper end inside the frame (1), a slide (22) fixed between the sliders of the electric lead screws (21) on both sides, a balance bar (25) is slidably installed through both ends of the slide (22), a connecting frame (24) is fixed between the two balance bars (25), and one of the base plates (311) is fixed on the connecting frame (24).

6. The tear test expansion device based on yarn-dyed fabric according to claim 5, characterized in that: The test mechanism (2) also includes a pressure sensor (23) installed on the upper end of the slide (22), and the detection end of the pressure sensor (23) is fixed to the connecting frame (24). A displacement sensor (26) is installed on the pressure sensor (23).

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