A yarn fiber tensile testing device

Abstract

This utility model discloses a yarn fiber tensile strength testing device, including a base, a top frame connected to the top of the base, and a lifting plate connected to the inner side of the top frame; a clamping assembly including two back plates connected to the bottom surface of the lifting plate and the top surface of the base, and a sliding groove formed on the surface of the back plates; through the designed auxiliary clamping assembly, the yarn segment test can be quickly realized in conjunction with the clamping assembly. In use, the two ends of the yarn are clamped and fixed by the upper and lower clamping assemblies, then the lifting base is adjusted to the designated position, and the middle part of the yarn is clamped and fixed by the clamping strip. After the device is started, the device can perform tensile strength testing on the yarn segment from the lifting base to the clamping assembly. To test different segments of the yarn, the position of the lifting base can be adjusted. The two ends of the yarn are always firmly clamped and fixed by the clamping assembly. This design is convenient for personnel to perform tensile strength testing and helps to ensure the clamping stability of the yarn.

Description

Technical Field

[0001] This utility model belongs to the field of tensile testing technology, specifically relating to a yarn fiber tensile testing device. Background Technology

[0002] Yarn fiber is a long, soft, and filamentous material with a certain strength and flexibility. It is usually made of natural or synthetic polymer compounds and is the basic unit that makes up yarn and fabric. During the production and processing of yarn fiber, tensile tests are often required to accurately evaluate its mechanical properties such as strength and toughness under tensile force, so as to ensure the quality of the final product.

[0003] Existing tensile testing machines require two clamping components to hold both ends of the yarn during use. The yarn ends are then pulled by these components to perform the tensile test. However, this method tests the entire yarn, and often requires segmented testing at different locations on the same yarn. The existing design requires readjusting the positions of the clamping components and the yarn for each segmented test, which causes inconvenience to personnel. Therefore, a new yarn fiber tensile testing device needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a yarn fiber tensile strength testing device to solve the problem mentioned in the background art that the existing testing devices are not convenient for segmented testing of yarn.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a yarn fiber tensile strength testing device, comprising...

[0006] The base, the top frame connected to the top of the base, and the lifting plate connected to the inside of the top frame;

[0007] The clamping assembly includes two back plates connected to the bottom surface of the lifting plate and the top surface of the base, a slide groove formed on the surface of the back plates, and clamping pieces slidably connected inside the slide groove and arranged opposite to each other.

[0008] The auxiliary clamping assembly includes a lifting seat that is lifted and connected to the inside of the top frame, a central slot opened in the middle of the lifting seat, and clamping strips that are telescopically connected to the inner walls on both sides of the central slot.

[0009] Preferably, the auxiliary clamping assembly further includes hydraulic rods, which are symmetrically arranged inside both ends of the lifting seat, with one end of the hydraulic rod extending out of the central groove and fixedly connected to the clamping strip.

[0010] Preferably, an indicator needle is fixed to one end of both the lifting seat and the lifting plate, and a scale line is provided on one side surface of the top frame, with the indicator needle pointing to the scale line.

[0011] Preferably, the clamping assembly further includes a motor and a lead screw. The motor is fixed to the back of the back plate, and the output shaft is fixedly connected to the lead screw. The surface of the lead screw has two spirals in opposite directions, which are threaded to the tail ends of the two clamping plates respectively.

[0012] Preferably, the clamping assembly further includes a fixing rod, which is fixed inside the slide groove and slides through the clamping piece.

[0013] Preferably, the clamping assembly further includes a rectangular groove formed on the surface of the back plate and a rubber pad installed inside the rectangular groove.

[0014] Preferably, the clamping assembly further includes an adhesive tape bonded to the surface of the rubber pad.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The designed auxiliary clamping components enable quick segmented testing of yarn in conjunction with the clamping components. To use, first, the two ends of the yarn are clamped and fixed using the upper and lower clamping components. Then, the lifting seat is adjusted to the designated position, and the middle of the yarn is clamped and fixed using the clamping strips. After starting the device, it can perform tensile testing on the yarn segment from the lifting seat to the clamping components. To test different segments of the yarn, simply adjust the position of the lifting seat. The ends of the yarn are always firmly clamped and fixed by the clamping components. This design facilitates tensile testing and ensures the stability of the yarn clamping. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged view of area A in the middle;

[0019] Figure 3 This is a top sectional view of the clamping assembly of this utility model;

[0020] Figure 4 This utility model Figure 1 Enlarged diagram of area B in the middle;

[0021] In the diagram: 100, base; 200, top frame; 300, lifting plate; 400, clamping assembly; 401, back plate; 402, slide groove; 403, clamping piece; 404, motor; 405, lead screw; 406, fixing rod; 407, rectangular groove; 408, rubber pad; 409, tape; 500, auxiliary clamping assembly; 501, lifting seat; 502, middle groove; 503, clamping strip; 504, hydraulic rod; 600, indicator needle; 700, scale line. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] Example

[0024] Please see Figures 1 to 4 This embodiment of the present invention provides a technical solution: a yarn fiber tensile strength testing device, comprising...

[0025] The base 100, the top frame 200 connected to the top of the base 100, and the lifting plate 300 connected to the inner side of the top frame 200 are connected. A linear motor can be connected between the top frame 200 and the lifting plate 300 so that the lifting plate 300 can move up and down.

[0026] The clamping assembly 400 includes two back plates 401 connected to the bottom surface of the lifting plate 300 and the top surface of the base 100, a slide groove 402 formed on the surface of the back plate 401, and a clamping piece 403 slidably connected inside the slide groove 402 and arranged opposite to each other. The clamping piece 403 can be used to clamp and fix the upper and lower ends of the yarn. The clamping assembly 400 is connected to an external tension sensor.

[0027] The auxiliary clamping assembly 500 includes a lifting seat 501 that is lifted and connected to the inside of the top frame 200, a central groove 502 opened in the middle of the lifting seat 501, and clamping strips 503 that are telescopically connected to the inner walls on both sides of the central groove 502. The clamping strips 503 can be used to clamp the yarn, so that the tensile strength test can be performed on the section of yarn between the clamping strips 503 and the upper clamping assembly 400. For example, if it is necessary to test half of the yarn, the clamping strips 503 can be clamped at half of the yarn; if it is necessary to test one-third of the yarn, the clamping strips 503 can be clamped at one-third of the yarn.

[0028] In this embodiment, preferably, the auxiliary clamping assembly 500 further includes hydraulic rods 504. The hydraulic rods 504 are symmetrically arranged inside both ends of the lifting seat 501, and one end of the hydraulic rod 504 extends out of the central groove 502 and is fixedly connected to the clamping strip 503. The hydraulic rods 504 on both sides are electrically connected through wires and can be started synchronously to push the clamping strip 503 to move, thereby firmly clamping and fixing the yarn.

[0029] In this embodiment, preferably, an indicator needle 600 is fixed to one end of both the lifting seat 501 and the lifting plate 300, and a scale line 700 is provided on one side surface of the top frame 200. The indicator needle 600 points to the scale line 700 to display the length.

[0030] In this embodiment, preferably, the clamping assembly 400 further includes a motor 404 and a lead screw 405. The motor 404 is fixed to the back of the back plate 401, and its output shaft is fixedly connected to the lead screw 405. The lead screw 405 has two spirals with opposite directions on its surface, which are respectively threaded to the tail ends of the two clamping pieces 403. When the motor 404 is started, the lead screw 405 is driven to rotate, thereby driving the clamping pieces 403 on both sides to move towards each other, thereby clamping and fixing the yarn.

[0031] In this embodiment, preferably, the clamping assembly 400 further includes a fixing rod 406, which is fixed inside the slide groove 402 and slides through the clamping piece 403, allowing the clamping piece 403 to move stably.

[0032] In this embodiment, preferably, the clamping assembly 400 further includes a rectangular groove 407 formed on the surface of the back plate 401 and a rubber pad 408 installed inside the rectangular groove 407. The clamping assembly 400 also includes an adhesive tape 409, which is adhered to the surface of the rubber pad 408. When using the clamping assembly 400 to clamp both ends of the yarn, the ends of the yarn can be pressed against the rubber pad 408 with the thumb, and the adhesive tape 409 can adhere the yarn. Then, the yarn can be manually straightened, and the ends of the yarn can be clamped with the clamping piece 403, which is beneficial for clamping stability.

[0033] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 yarn fiber tensile strength testing device, characterized in that: include Base (100), top frame (200) connected to the top of base (100), and lifting plate (300) connected to the inside of top frame (200); The clamping assembly (400) includes two back plates (401) connected to the bottom surface of the lifting plate (300) and the top surface of the base (100), a slide groove (402) formed on the surface of the back plate (401), and a clamping piece (403) slidably connected inside the slide groove (402) and disposed opposite to each other. The auxiliary clamp assembly (500) includes a lifting seat (501) that is lifted and connected to the inside of the top frame (200), a central groove (502) opened in the middle of the lifting seat (501), and clamping strips (503) that are telescopically connected to the inner walls on both sides of the central groove (502).

2. The yarn fiber tensile strength testing device according to claim 1, characterized in that: The auxiliary clamp assembly (500) also includes a hydraulic rod (504), which is symmetrically arranged inside both ends of the lifting seat (501), and one end of the hydraulic rod (504) extends out of the central groove (502) and is fixedly connected to the clamping bar (503).

3. The yarn fiber tensile strength testing device according to claim 2, characterized in that: An indicator needle (600) is fixed to one end of both the lifting seat (501) and the lifting plate (300), and a scale line (700) is provided on one side surface of the top frame (200), with the indicator needle (600) pointing to the scale line (700).

4. The yarn fiber tensile strength testing device according to claim 3, characterized in that: The clamping assembly (400) also includes a motor (404) and a lead screw (405). The motor (404) is fixed to the back of the back plate (401), and the output shaft is fixedly connected to the lead screw (405). The lead screw (405) has two spirals with opposite directions on its surface, and they are threaded to the tail ends of two clamping plates (403) respectively.

5. The yarn fiber tensile strength testing device according to claim 4, characterized in that: The clamping assembly (400) further includes a fixing rod (406) which is fixed inside the slide groove (402) and slides through the clamping piece (403).

6. The yarn fiber tensile strength testing device according to claim 5, characterized in that: The clamping assembly (400) also includes a rectangular groove (407) formed on the surface of the back plate (401) and a rubber pad (408) installed inside the rectangular groove (407).

7. The yarn fiber tensile strength testing device according to claim 6, characterized in that: The clamping assembly (400) also includes an adhesive tape (409) that is adhered to the surface of the rubber pad (408).

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