A stable tensile instrument tensile structure

Abstract

This utility model relates to the field of stretching instruments, and more particularly to a stable stretching structure for a stretching instrument. The technical problem is that existing stretching instruments use clamping structures that do not hold the fabric tightly, allowing knitted fabrics to easily slip off the clamps during stretching. The technical solution is a stable stretching structure for a stretching instrument, comprising a body, a through groove, a tension sensor, a fixed end platform, a linear motor and a moving end platform, a dust curtain, a stretching fixing component, and a measuring scale. This utility model replaces the clamps on the original stretching instrument with a stretching fixing component, providing better fixation for both ends of the knitted fabric and preventing it from easily slipping off during stretching, thus ensuring the normal conduct of the stretching test. The dust curtain reduces the possibility of external dust entering the machine body during use, preventing contamination of internal electrical equipment. This solves the problem of existing stretching instruments using clamping structures that do not hold the fabric tightly, allowing knitted fabrics to easily slip off the clamps during stretching.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing instruments, and in particular to a stable tensile testing instrument tensile structure. Background Technology

[0002] The tensile strength of knitted fabrics is an important indicator for evaluating the intrinsic quality of the product and a crucial basis for optimizing production processes. Therefore, for knitted fabric manufacturers and textile quality inspection agencies, testing the tensile strength of knitted fabrics is a routine and important task. The tensile strength test is mainly carried out using existing tensile testing equipment. This equipment uses two clamps that hold the knitted fabric in place, and a linear motor controls the two clamps to move away from each other. A force sensor then detects the tensile force in real time, and the tensile strength is calculated by combining this with the amount of stretching.

[0003] A utility model patent with publication number CN215065766U discloses a vertical sweater density tensile tester. This tester uses a sensor to determine the force, resulting in a wide tensile testing range and good practicality. Its structure includes a housing, a clamping mechanism, and a transmission mechanism. The clamping mechanism includes an upper clamp and a lower clamp, which are used to clamp the sweater. It also includes a signal acquisition mechanism, which includes a force sensor connected to the upper clamp. The transmission mechanism includes a guide rail with a guide block connected to it. The guide block moves along the guide rail and is connected to the lower clamp. Existing tensile testers typically use clamps as the tensile structure. This structure is prone to causing the knitted fabric to slip off the clamps due to extreme tensile force during stretching, leading to tensile test failure.

[0004] Therefore, in view of the problem that the clamping structure used in the existing stretching instrument does not hold the fabric tightly and the knitted fabric is easy to slip off the clamp during the stretching process, a new type of stretching structure can be designed to ensure a stable connection between the structure and the knitted fabric during the stretching process. Utility Model Content

[0005] To overcome the problem that the clamping structure used in existing stretching machines does not hold the fabric tightly, and that knitted fabrics easily slip off the clamps during the stretching process.

[0006] The technical solution of this utility model is as follows: a stable tensioning structure for a tensioning instrument, comprising a body, a through groove, a tension sensor, a fixed end platform, a linear motor and a movable end platform, a dustproof curtain, tensioning fasteners, and measuring scales; the body is a hollow structure with a through groove at the front end, a dustproof curtain installed on the inner wall of the through groove, a tension sensor installed at the upper end of the body, a fixed end platform extending through the through groove installed at the lower end of the tension sensor, a linear motor installed on the inner side wall of the body, a movable end platform extending through the through groove installed on the linear motor, the movable end platform being below the fixed end platform, tensioning fasteners for fixing knitted fabrics installed at the lower end of the fixed end platform and the upper end of the movable end platform, and measuring scales symmetrically arranged on the left and right sides of the front end of the body.

[0007] Preferably, one end of the knitted fabric is connected to a tension fixing member on a fixed end platform, and the other end is connected to another tension fixing member on a moving end platform. A linear motor drives the moving end platform to fall, stretching the knitted fabric. A tension sensor receives the tension force on the fixed end platform and sends it to a computer for recording. At the same time, the inspector uses a measuring tape to check the length of the stretched knitted fabric. The density value is obtained by converting the tension force and the stretch amount.

[0008] Preferably, the tension fastener includes a base, hooks, and a threaded connector. The two bases are respectively anchored to the fixed end platform and the movable end platform by bolts. Two hooks are fixedly connected to the bases symmetrically on the left and right. The bent ends of the hooks are provided with threaded connectors. For knitted fabrics with low fabric density, the surface has gaps. By passing the hooks through the gaps at the top and bottom ends of the knitted fabric, it is fixed to the fixed end platform and the movable end platform. With this fixing method, the knitted fabric cannot fall off the tension fastener at all during the stretching process, and the fixing effect is the best.

[0009] Preferably, the connector extends forward from the curved section of the hook in a tapered shape. The connector is a plastic part with a blunt, rounded end. The connector structure allows it to penetrate the pores in the knitted fabric more easily, like a needle. The plastic material ensures that the connector will not cause puncture injury to the person.

[0010] Preferably, the tension fixing component includes a bracket, a roller, clamps, and a rotary motor. Two brackets are respectively bolted to the fixed end platform and the movable end platform. A roller is installed inside the bracket, and clamps connected to the outer wall of the roller via torsion spring shafts are installed on the outer wall of the roller. A rotary motor is installed on one side of the bracket, and one end of the roller is fixedly connected to the drive shaft of the rotary motor. The length of the roller can be customized according to the width of the knitted fabric being tested. First, one end of the knitted fabric is placed on the roller on the fixed end platform, and the clamps are used to clamp it. Then, the rotary motor is started to control the roller to rotate, so that the knitted fabric is wrapped around the roller 3-4 times. Then, the other end of the knitted fabric is wrapped around another roller on the movable end platform in the same way. Through this combination of clamping and wrapping, the fastening is very good and it is not easy to cause damage to the knitted fabric.

[0011] Preferably, the outer wall of the roller is covered with a layer of rough silicone sleeve, and silicone pads are glued and fixed on the side wall of the clamping plate. By setting the silicone sleeve and silicone pads, the friction locking force is enhanced when the clamping plate clamps the knitted fabric. At the same time, the friction between the roller and the first layer of wound knitted fabric is also greatly improved, resulting in a good locking effect.

[0012] Preferably, the linear motor consists of a track platform and a moving machine. The track platform is installed on the inner side wall of the machine body. The housing of the moving machine is fixedly connected to the moving end platform and drives the moving end platform to slide down. The dust curtain is made of several small silicone sheets. When the moving end platform moves up and down with the moving machine of the linear motor, it will cause the silicone sheets to deform. The dust curtain at the through slots on the upper and lower sides of the moving end platform is in a stationary state, sealing the through slots and preventing dust from entering.

[0013] Preferably, the measuring scale is made of transparent resin board and is embedded in the front of the machine body. An auxiliary light is installed on the inner wall of the machine body behind the measuring scale. When using the stretch meter at night or in a dim environment, the auxiliary light is turned on and the light shines outward through the transparent resin board measuring scale, making it easy for the user to see the reading on the measuring scale and record the elongation of the knitted fabric.

[0014] The beneficial effects of this utility model are:

[0015] 1. By replacing the clamps on the original stretching tester with stretching fasteners, the fixation effect on both ends of the knitted fabric is better, and it is not easy to come loose during the stretching process, ensuring the normal conduct of the stretching test. The dust curtain reduces the possibility of external dust entering the machine body during use and prevents internal electrical equipment from being contaminated.

[0016] 2. By using an auxiliary light installed inside the machine in conjunction with a measuring scale made of transparent resin material, illumination can be provided to the measuring scale area when used in dim environments or at night, thereby improving detection efficiency. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional assembly schematic of the stable tensile tester tensile structure of this utility model, according to Embodiment 1.

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the stable tensioning structure and tensioning fastener of this utility model, according to Embodiment 1.

[0019] Figure 3 The diagram shown is a three-dimensional assembly schematic of the stable tensile tester tensile structure of this utility model, embodiment two.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the stable tensioning structure and tensioning fastener of this utility model, according to Embodiment 2.

[0021] Figure 5 The diagram shown is a front view of the stable tensile tester body of this utility model.

[0022] Figure 6 The diagram shown is a schematic representation of the internal structure of the stable tensile tester of this invention.

[0023] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Through groove; 3. Dustproof curtain; 4. Tension sensor; 5. Fixed end platform; 6. Linear motor; 7. Moving end platform; 9. Measuring scale; 10. Auxiliary light; 801. Base; 802. Hook; 803. Connector; 804. Bracket; 805. Roller; 806. Rotary motor; 807. Clamping plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figures 1-6 This utility model provides a stable tensile testing structure, including a body 1, a through groove 2, a tension sensor 4, a fixed end platform 5, a linear motor 6, a moving end platform 7, a dustproof curtain 3, a tensile fixing component, and a measuring scale 9. The body 1 has a hollow structure with a through groove 2 at the front end. A dustproof curtain 3 is installed on the inner wall of the through groove 2. The tension sensor 4 is installed at the upper end of the body 1. The fixed end platform 5, which extends through the through groove 2, is installed at the lower end of the tension sensor 4. The linear motor 6 is installed on the inner wall of the body 1. The moving end platform 7, which extends through the through groove 2, is installed on the linear motor 6. The moving end platform 7 is located at the fixed end. Below platform 5, tension fixing components for fixing the knitted fabric are installed at the lower end of the fixed end platform 5 and the upper end of the moving end platform 7. Measuring scales 9 are symmetrically arranged on the left and right sides of the front end of the machine body 1. One end of the knitted fabric is connected to the tension fixing component on the fixed end platform 5, and the other end is connected to another tension fixing component on the moving end platform 7. The linear motor 6 drives the moving end platform 7 to fall, stretching the knitted fabric. The tension sensor 4 receives the tension force on the fixed end platform 5 and sends it to the computer for recording. At the same time, the inspector checks the length of the stretched knitted fabric through the measuring scale 9. The density value is obtained by converting the tension force and the stretch amount.

[0026] Example 1, please refer to Figures 1-2 In this embodiment, the tension fixing member includes a base 801, a hook 802, and a connector 803. The two bases 801 are respectively anchored to the fixed end platform 5 and the movable end platform 7 by bolts. Two hooks 802 are fixedly connected to the base 801, which are symmetrically arranged. The curved end of the hook 802 is provided with a connector 803. For knitted fabrics with low fabric density, there are gaps on the surface. The hook 802 passes through the gaps at the upper and lower ends of the knitted fabric and fixes it to the fixed end platform 5 and the movable end platform 7. In this fixing method, the knitted fabric cannot fall off the tension fixing member during the stretching process, and the fixing effect is the best. The connector 803 extends forward from the curved end of the hook 802 in a conical structure. The connector 803 is a plastic part with a blunt and rounded end. The structure of the connector 803 can be inserted into the gaps on the knitted fabric more easily like a needle. The plastic material of the connector 803 ensures that the connector 803 will not cause puncture injury to people.

[0027] Example 2, please refer to Figures 3-4 In this embodiment, the tension fixing component includes a bracket 804, a roller 805, a clamp 807, and a rotary motor 806. Two brackets 804 are respectively anchored to the fixed end platform 5 and the movable end platform 7 via bolts. A roller 805 is installed inside each bracket 804, and a clamp 807 connected to the outer wall of the roller 805 via a torsion spring shaft is provided. A rotary motor 806 is mounted on one side of the bracket 804. One end of the roller 805 is fixedly connected to the drive shaft of the rotary motor 806. The length of the roller 805 can be customized according to the width of the knitted fabric being tested. First, one end of the knitted fabric is placed on the roller 805 on the fixed end platform 5, and the clamp 807 clamps it. Then, the rotary motor 806 is started to control the rotation of the roller 805, so that the knitted fabric is wound around the roller 805 3-4 times. Then, the other end of the knitted fabric is wound around another roller 805 on the movable end table 7 in the same way. Through this combination of clamping and winding, the fastening is very good and it is not easy to damage the knitted fabric. The outer wall of the roller 805 is covered with a layer of rough silicone sleeve, and silicone pads are glued and fixed on the side wall of the clamp 807. Through the setting of silicone sleeve and silicone pads, the friction locking force is enhanced when the clamp 807 clamps the knitted fabric. At the same time, the friction between the roller 805 and the first layer of wound knitted fabric is also greatly improved, resulting in a good locking effect.

[0028] Please see Figures 5-6 The linear motor 6 consists of a track platform and a moving machine. The track platform is installed on the inner wall of the machine body 1. The housing of the moving machine is fixedly connected to the moving end platform 7 and drives the moving end platform 7 to slide up and down. The dust curtain 3 is made of several small silicone sheets. When the moving end platform 7 moves up and down with the moving machine of the linear motor 6, it will deform the silicone sheets. The dust curtain 3 located at the through slots 2 on the upper and lower sides of the moving end platform 7 is in a stationary state, sealing the through slots 2 to prevent dust from entering. The measuring scale 9 is a transparent resin board and is embedded in the front end of the machine body 1. An auxiliary light 10 is installed on the inner wall of the machine body 1 behind the measuring scale 9. When using the stretch meter at night or in a dim environment, the auxiliary light 10 is turned on, and the light shines outward through the transparent resin board measuring scale 9, making it easy for the user to see the reading on the measuring scale 9 and record the elongation of the knitted fabric.

[0029] By replacing the clamps on the original stretching instrument with stretching fasteners through the above steps, the fixation effect on both ends of the knitted fabric is better, and it is not easy to come loose during the stretching process, ensuring the normal conduct of the stretching test. The dust curtain 3 reduces the possibility of external dust entering the machine body 1 during use and prevents internal electrical equipment from being contaminated, thus solving the problem that the existing stretching instrument's clamping structure does not hold tightly and the knitted fabric is easy to slip off the clamps during the stretching process.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stable tensile testing structure, comprising an organism (1), a through groove (2), a force sensor (4), a fixed end platform (5), a linear motor (6), and a movable end platform (7); characterized in that: It also includes a dustproof curtain (3), a tension fixing component and a measuring scale (9); the machine body (1) is a hollow structure and has a through groove (2) at the front end. A dustproof curtain (3) is installed on the inner wall of the through groove (2). A tension sensor (4) is installed at the upper end of the machine body (1). A fixed end platform (5) that passes through the through groove (2) is installed at the lower end of the tension sensor (4). A linear motor (6) is installed on the inner side wall of the machine body (1). A movable end platform (7) that passes through the through groove (2) is installed on the linear motor (6). The movable end platform (7) is located below the fixed end platform (5). A tension fixing component for fixing the knitted fabric is installed at the lower end of the fixed end platform (5) and the upper end of the movable end platform (7). A measuring scale (9) is symmetrically arranged on the left and right sides of the front end of the machine body (1). The tension fastener includes a base (801), a hook (802), and a connector (803); the two bases (801) are respectively anchored to the fixed end platform (5) and the movable end platform (7) by bolts, and two hooks (802) are fixedly connected on the base (801) symmetrically, and the bent end of the hook (802) is provided with a connector (803).

2. The stable tensile testing structure according to claim 1, characterized in that: The connector (803) extends forward from the curved section of the hook (802) in a conical structure, and the connector (803) is a plastic part with blunt rounded ends.

3. The stable tensile tester structure according to claim 1, characterized in that: The tensioning fastener includes a bracket (804), a roller (805), a clamp (807), and a rotary motor (806); the two brackets (804) are respectively anchored to the fixed end platform (5) and the movable end platform (7) by bolts. The roller (805) is provided inside the bracket (804), and the clamp (807) connected by a torsion spring shaft is provided on the outer wall of the roller (805). The rotary motor (806) is installed on one side of the bracket (804), and one end of the roller (805) is fixedly connected to the drive shaft of the rotary motor (806).

4. The stable tensile testing structure according to claim 3, characterized in that: The outer wall of the roller (805) is covered with a layer of rough silicone sleeve, and a silicone pad is glued and fixed on the side wall of the clamp (807).

5. The stable tensile testing structure according to claim 1, characterized in that: The linear motor (6) consists of a track platform and a moving machine. The track platform is installed on the inner wall of the machine body (1). The housing of the moving machine is fixedly connected to the moving end platform (7) and drives the moving end platform (7) to slide up and down.

6. The stable tensile tester structure according to claim 1, characterized in that: The measuring scale (9) is a transparent resin plate and is embedded in the front end of the machine body (1). An auxiliary light (10) is installed on the inner side wall of the machine body (1) behind the measuring scale (9).

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