Fabric stretching detection device with clamping mechanism

By combining clamping component one and clamping component two, along with anti-slip bosses and a rubber layer, and using an electric push rod and a synchronous reverse motor to drive the clamping components to rotate in the opposite direction, the problem of fabric slippage is solved, and uniform clamping and convenient disassembly of the fabric are achieved, thereby improving the accuracy and efficiency of tensile testing.

CN223940678UActive Publication Date: 2026-02-24XIAN SCIENCE & TECHNOLOGY TESTING & CERTIFICATION CO LTD
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Patent Information

Application Number
CN202520360434.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-24
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

In existing fabric tensile testing devices, the clamping mechanism cannot clamp the fabric evenly, causing the fabric to slip during the test and affecting the accuracy of the test results.

Method used

The device employs a combination structure of clamping component one and clamping component two. Clamping component one has a pressure groove at the top, and clamping component two has a pressure strip at the bottom. Combined with anti-slip protrusions and a rubber layer, the clamping components are driven to rotate synchronously in the opposite direction by an electric push rod and a synchronous reverse motor, so as to achieve uniform clamping of the fabric. The locking component ensures that the clamping components are easy to assemble and disassemble.

Benefits of technology

It significantly improves clamping stability, prevents fabric slippage, ensures the accuracy of tensile testing, and facilitates the assembly and disassembly of clamping components, making it easy to remove the fabric.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fabric stretching detection device with a clamping mechanism, which comprises a detection device main body, a clamping piece I and a clamping piece II, and two fixing assemblies for placing the clamping piece I and the clamping piece II are respectively arranged on the left side and the right side in the detection device main body; the front side and the rear side of the first clamping piece are respectively provided with an end socket used for fixing the first clamping piece, and the top of the first clamping piece is provided with a pressing groove. Compared with the prior art, the anti-skidding clamping piece has the advantages that the first clamping piece and the second clamping piece are arranged, the left position and the right position of the top of the first clamping piece are respectively provided with a plurality of sets of anti-skidding bosses, and therefore the anti-skidding clamping piece is convenient to use. The anti-skid bosses are made of rubber, a pressing groove is formed in the center of the top of the first clamping piece, a pressing strip is arranged at the bottom of the second clamping piece and extrudes fabric into the pressing groove, the fabric located at the top of the first clamping piece is clamped between the multiple sets of anti-skid bosses and the bottom of the second clamping piece, and therefore the clamping stability can be remarkably improved; the influence on the tensile test accuracy caused by fabric slipping is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of detection device technology, and specifically relates to a fabric stretch detection device with a clamping mechanism. Background Technology

[0002] A fabric tensile testing device is used to evaluate the mechanical properties of textiles under stress conditions. It measures key parameters such as breaking strength, elongation, and elastic recovery of the fabric by applying tensile force, thereby ensuring the quality and durability of the fabric. In a fabric tensile testing device, the clamping mechanism is a crucial component for fixing the fabric sample and ensuring it does not slip or fall off during testing. Existing clamping mechanisms generally use mechanical force (such as springs, bolts, etc.) to fix the fabric in the fixture. Common forms include grippers and pressure plates. The advantage of this clamping method is its ease of operation; however, its disadvantage is that the surface of the pressure plate cannot be perfectly flat, resulting in uneven clamping of the fabric and slippage during testing, affecting the accuracy of the test results. Therefore, a new structure is proposed to solve these problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a fabric stretch detection device with a clamping mechanism, thereby solving the problems mentioned in the background section.

[0004] This utility model is achieved through the following technical solution: a fabric stretching detection device with a clamping mechanism, comprising: a detection device body, a clamping component one and a clamping component two, wherein a fixing component for placing the clamping component one and the clamping component two is installed on each of the left and right sides inside the detection device body.

[0005] The clamping member 1 has a sealing head on its front and rear sides for fixing the clamping member 1. The top of the clamping member 1 has a pressure groove, and the bottom of the clamping member 2 has a pressure strip that fits into the pressure groove.

[0006] In a preferred embodiment, the top of the main body of the detection device is provided with a control mechanism, inside which is provided an electric push rod. A gripper is installed at the bottom of the electric push rod, and a motor is installed at the rear of the main body of the detection device. The gripper moves up and down under the action of the electric push rod, thus gripping and moving the second clamping component. There are two sets of motors of the same specifications. The two sets of motors are synchronous reverse motors, which can simultaneously drive the first clamping component and the second clamping component inside the fixing components on the left and right sides to rotate synchronously in opposite directions, thereby gradually straightening the fabric and performing a tensile test.

[0007] In a preferred embodiment, the fixing assembly includes two sets of support plates for supporting the clamping member, and a rotating shaft is provided at the center of the front end cap. The rotating shaft is movably installed with the shaft hole opened on the front of the front support plate.

[0008] A set of rotating shafts is provided at the center of the back side of the end cap. The rotating shafts are connected to the motor output end on the rear side by a coupling. The internal structure of the detection device body is completely identical in the left and right positions.

[0009] In a preferred embodiment, telescopic holes are provided on the upper back of the front end cap and on the upper front of the rear end cap, and locking components are installed inside the telescopic holes.

[0010] In a preferred embodiment, the clamping member is wrapped with a rubber layer on its outer side, and a number of anti-slip protrusions are arranged sequentially from front to back on the left and right sides of the top of the clamping member.

[0011] In a preferred embodiment, clamping member one and clamping member two together form a cylindrical structure. Clamping member two is wrapped with rubber layer two on the outside. Clamping member two has locking holes on both the front and back. A strain gauge sensor is provided on the top right side of clamping member two. The spacing between several sets of anti-slip protrusions on the left and several sets of anti-slip protrusions on the right is the same. Therefore, the uniformity of clamping force can be ensured when the fabric is clamped between clamping member one and clamping member two. Rubber layer one and rubber layer two can protect the fabric.

[0012] In a preferred embodiment, the locking assembly includes a pull rod for pulling the locking lever back, a pressure ring is provided on the rear side of the locking lever, a base is provided on the rear side of the pressure ring, and a spring is sleeved on the outer side of the base.

[0013] In a preferred embodiment, the pull rod passes through the base and the spring on the side near the pressure ring and is fixed to the pressure ring, the spring is fixed to the pressure ring on the side near the pressure ring, and the spring is fixed to the outside of the base on the side near the base.

[0014] In a preferred embodiment, the radius of the locking rod matches the radius of the locking hole, and the locking hole has the same specifications as the telescopic hole.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting clamping component one and clamping component two, clamping component one has several sets of anti-slip protrusions on the left and right sides of the top of clamping component one. The anti-slip protrusions are made of rubber. A pressure groove is opened in the center of the top of clamping component one. A pressure strip is provided at the bottom of clamping component two. The fabric is placed on top of clamping component one, and then clamping component two is placed on top of clamping component one. The pressure strip drives the fabric to be squeezed into the pressure groove. The fabric at the top of clamping component one is clamped between several sets of anti-slip protrusions and the bottom of clamping component two. Thus, through the cooperation of several sets of anti-slip protrusions and pressure strip and pressure groove, the fabric is stably clamped between clamping component one and clamping component two, which can significantly improve the clamping stability and prevent the fabric from slipping and affecting the accuracy of the tensile test.

[0016] 2. By setting a locking component, which includes a pull rod for pulling the locking lever, after the second clamping member is on top of the first clamping member, the telescopic hole and the locking hole are aligned. When the pull rod loses its tension, the compressed spring rebounds and pushes the locking lever into the locking hole. Therefore, by locking the two sets of locking levers with the two sets of locking holes respectively, the second clamping member and the first clamping member are fixed. The final effect is to facilitate the combination and disassembly of the first clamping member and the second clamping member, thus making it easier to remove the tested fabric. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a fabric stretch detection device with a clamping mechanism according to the present invention.

[0019] Figure 2 This is a schematic diagram of the combination of clamping component one and clamping component two in a fabric stretch testing device with a clamping mechanism according to the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of clamping component one and clamping component two in a fabric stretching testing device with a clamping mechanism according to the present invention.

[0021] Figure 4 This is a schematic diagram of the locking component in a fabric stretch testing device with a clamping mechanism according to the present invention.

[0022] In the diagram, 100 represents the main body of the detection device, and 110 represents the fixing component.

[0023] 200-Clamping component 1, 201-Pressure groove, 210-End cap, 220-Anti-slip boss;

[0024] 300-Clamping component 2, 301-Locking hole, 302-Pressure strip, 310-Strain gauge sensor;

[0025] 400-Locking assembly, 410-Locking lever, 411-Pressure ring, 420-Base, 421-Spring, 430-Pull rod. Detailed Implementation

[0026] 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 one aspect of the present utility model, and not all aspects. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figures 1 to 4 A fabric stretching detection device with a clamping mechanism includes: a detection device body 100, a clamping component 200 and a clamping component 300, and a fixing component 110 for placing the clamping component 200 and the clamping component 300 is installed on each of the left and right sides inside the detection device body 100.

[0028] The clamping member 200 has a cap 210 on each of its front and rear sides for fixing the clamping member 200. The clamping member 200 has a pressure groove 201 on its top and a pressure strip 302 at its bottom that is fitted and connected to the pressure groove 201.

[0029] The main body 100 of the testing device is equipped with a control mechanism at the top, and an electric push rod is installed inside the control mechanism. A gripper is installed at the bottom of the electric push rod. A motor is installed at the rear of the main body 100 of the testing device. The gripper moves up and down under the action of the electric push rod, so that the clamping part 200 can be gripped and moved. There are two sets of motors of the same specifications. The two sets of motors are synchronous reverse motors, which can simultaneously drive the clamping part 100 and the clamping part 200 inside the fixing components 110 on the left and right sides to rotate synchronously in opposite directions, so that the fabric can be gradually straightened and subjected to a tensile test.

[0030] The fixing assembly 110 includes two sets of support plates for supporting the clamping member 200. The front end cap 210 has a rotating shaft at the center of the front side, and the rotating shaft is movably installed with the shaft hole opened on the front side of the front support plate.

[0031] A set of rotating shafts is provided at the center of the back of the rear end cap 210. The rotating shafts are connected to the motor output end on the rear side by a coupling. The structures of the left and right positions inside the main body 100 of the detection device are exactly the same.

[0032] Telescopic holes are provided on the upper back of the front end cap 210 and the upper front of the rear end cap 210, and locking components 400 are installed inside the telescopic holes.

[0033] The clamping component 200 is covered with a rubber layer, and several sets of anti-slip protrusions 220 are arranged on the top left and right sides of the clamping component 200 from front to back.

[0034] Clamping component 1 200 and clamping component 2 300 together form a cylindrical structure. Clamping component 2 300 is covered with a rubber layer 2 on the outside. Both the front and back of clamping component 2 300 have locking holes 301. A strain gauge sensor 310 is provided on the top right side of clamping component 2 300. The spacing between several sets of anti-slip protrusions 220 on the left and several sets of anti-slip protrusions 220 on the right is the same. Therefore, the uniformity of clamping force can be ensured when the fabric is clamped between clamping component 1 200 and clamping component 2 300. In addition, rubber layer 1 and rubber layer 2 can protect the fabric.

[0035] The locking assembly 400 includes a pull rod 430 for pulling the locking lever 410 back. A pressure ring 411 is provided on the rear side of the locking lever 410, and a base 420 is provided on the rear side of the pressure ring 411. A spring 421 is sleeved on the outer side of the base 420.

[0036] The pull rod 430 passes through the base 420 and the spring 421 on the side near the pressure ring 411 and is fixed to the pressure ring 411. The spring 421 is fixed to the pressure ring 411 on the side near the pressure ring 411 and fixed to the outside of the base 420 on the side near the base 420.

[0037] The radius of the locking rod 410 matches the radius of the locking hole 301, and the locking hole 301 has the same specifications as the telescopic hole.

[0038] Example 1: Please refer to Figures 1 to 4In actual use, a fixing component 110 is provided on each of the left and right sides inside the main body 100 of the detection device. Each fixing component 110 consists of two support plates, one at the front and one at the back. A shaft hole is provided through the upper front of each set of support plates. A clamping member 200 of the same specification is installed between each set of fixing components 110. A head 210 is provided at the front and back positions of the clamping member 200. The front rotating shaft of the front head 210 is installed with the shaft hole on the front support plate. The back of the rear head 210 passes through the shaft hole on the rear support plate through a rotating shaft 2 and is connected to the detection device. The measuring device is connected to the inner wall of the rear side of the measuring device and to the motor output end of the rear side of the measuring device through a coupling. Therefore, the rotation of the motor can drive the clamping part 200 to rotate inside the fixing assembly 110. Each clamping part 200 is provided with a clamping part 300 above it. At this time, the top of the clamping part 300 is fixed by the gripper. The top of the gripper is connected to the electric push rod inside the control mechanism at the top of the measuring device through a telescopic rod. When the electric push rod is stationary, it is in the retracted state (the motor and control mechanism are existing technologies, and their internal structure and working principle will not be described in detail here).

[0039] During operation, the fabric is first held by the robotic arms on the left and right sides of the main body 100 of the detection device. Then, the two sets of robotic arms move forward around the top of the main body 100 of the detection device and descend. Next, they move backward and enter the top of the two sets of clamping parts 200. Finally, the two sets of robotic arms descend and place the fabric on the top of the two sets of clamping parts 200 (the robotic arms are existing technology, and their internal structure and working principle will not be described here). Then, the control mechanism controls the two sets of electric push rods to drive the two sets of grippers to descend. The grippers drive the clamping part 300 to descend. The clamping part 300 moves downward and gradually contacts the top of the clamping part 200. During the contact process, the pressure strip 302 at the bottom of the clamping part 300 squeezes the fabric downward into the pressure groove 201 at the top of the clamping part 200. The fabric at the top of the clamping part 200 is clamped between several sets of anti-slip protrusions 220 at the top of the clamping part 200 and the bottom of the clamping part 300.

[0040] When the two sets of locking holes 301 on the front and rear sides of clamping member 200 are aligned with the telescopic holes on the inner sides of the two sets of end caps 210 of clamping member 100, the pull rod 430 in the locking assembly 400 installed inside the telescopic hole loses tension, causing the compressed spring 421 to rebound and push the locking rod 410 towards the locking hole 301 in the opposite position, so that the two sets of locking rods 410 are respectively engaged with the two sets of locking holes 301. At this time, clamping member 100 and clamping member 200 are combined. The combined clamping member 200 is then fully assembled. The clamping component 200 and the clamping component 200 form a cylindrical structure. It should be noted that the combination and locking of the clamping component 110 and the clamping component 200 and the clamping component 200 inside the left and right fixing components are carried out simultaneously. The clamping component 1200 is wrapped with a rubber layer on the outside, and the clamping component 200 is wrapped with a second rubber layer on the outside, so it can protect the fabric. The final effect is that the fabric can be stably clamped between the clamping component 1200 and the clamping component 200. The setting of several sets of anti-slip protrusions 220 can ensure the uniformity of clamping force.

[0041] Example 2: Please refer to Figures 1 to 4 After the fabric is clamped by clamping parts 200 and 300 inside the fixing mechanisms on the left and right sides respectively, the center of the fabric is relaxed. At this time, the two sets of robotic arms release the clamping state of the fabric and leave. Then, the two sets of motors are started. The two sets of motors are synchronous reverse motors. That is, the clamping parts 200 and 300 on the left rotate counterclockwise, and the clamping parts 200 and 300 on the right rotate clockwise. The counterclockwise rotation of the clamping parts 200 and 300 on the left wraps the fabric around the assembled cylinder. The same applies to the right side. Since the clamping part 300 is equipped with a strain gauge sensor 310 at the top, the fabric is gradually straightened and enters the tensile test stage as the two sets of motors rotate in opposite directions. At this time, the strain gauge sensor 310 will sense the change in tension and feed back to the control mechanism to keep the tensile force in the test within a reasonable tension range, thereby completing the tensile test of the fabric.

[0042] After the test is completed, the pull rod 430 in the locking assembly 400 first restores the tension and pulls the pressure ring 411 to drive the locking rod 410 to disengage from the locking hole 301 and retract into the telescopic hole. At this time, the locking state between clamping part 1 200 and clamping part 2 300 is released. Then, the electric push rod is activated to use the gripper to disengage clamping part 2 300 from the top of clamping part 1 200 upwards. Two sets of robotic arms enter the main body 100 of the testing device and clamp the left and right sides of the fabric respectively. Finally, the tested fabric is taken out. Therefore, the final effect is that the locking assembly 400 facilitates the combination and disassembly of clamping part 1 200 and clamping part 2 300, thereby facilitating the removal of the fabric.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fabric stretch detection device with a clamping mechanism, comprising: The detection device body (100), clamping component one (200) and clamping component two (300) are characterized in that: a fixing component (110) for placing clamping component one (200) and clamping component two (300) is installed on each of the left and right sides inside the detection device body (100); The clamping member one (200) is provided with a cap (210) on the front and rear sides for fixing the clamping member one (200). The clamping member one (200) has a pressure groove (201) on the top and a pressure strip (302) that fits into the pressure groove (201) at the bottom.

2. The fabric stretch detection device with a clamping mechanism as described in claim 1, characterized in that: The detection device body (100) has a control mechanism on its top, an electric push rod inside the control mechanism, a gripper at the bottom of the electric push rod, and a motor on the rear side of the detection device body (100).

3. The fabric stretch detection device with a clamping mechanism as described in claim 1, characterized in that: The fixing component (110) includes two sets of support plates for supporting the clamping member (200) at the front and rear. The front end cap (210) is provided with a rotating shaft at the center of the front side. The rotating shaft is movably installed with the shaft hole opened on the front side of the front support plate. A set of rotating shafts is provided at the center of the back side of the end cap (210). The rotating shafts are connected to the motor output end on the rear side by a coupling. The internal left and right positions of the detection device body (100) are completely identical.

4. The fabric stretch detection device with a clamping mechanism as described in claim 3, characterized in that: Telescopic holes are provided on the upper back of the front end cap (210) and the upper front of the rear end cap (210), and locking components (400) are installed inside the telescopic holes.

5. The fabric stretch detection device with a clamping mechanism as described in claim 1, characterized in that: The clamping member (200) is wrapped with a rubber layer, and several sets of anti-slip protrusions (220) are arranged sequentially from front to back on the left and right sides of the top of the clamping member (200).

6. The fabric stretch detection device with a clamping mechanism as described in claim 4, characterized in that: The clamping component one (200) and the clamping component two (300) together form a cylindrical structure. The clamping component two (300) is wrapped with a rubber layer two. The clamping component two (300) has locking holes (301) on both the front and back sides. The clamping component two (300) has a strain gauge sensor (310) on the top right side.

7. The fabric stretch detection device with a clamping mechanism as described in claim 4, characterized in that: The locking assembly (400) includes a pull rod (430) for pulling the locking lever (410) back. A pressure ring (411) is provided on the rear side of the locking lever (410), and a base (420) is provided on the rear side of the pressure ring (411). A spring (421) is sleeved on the outer side of the base (420).

8. The fabric stretch detection device with a clamping mechanism as described in claim 7, characterized in that: The pull rod (430) passes through the base (420) and spring (421) on the side near the pressure ring (411) and is fixed to the pressure ring (411). The spring (421) is fixed to the pressure ring (411) on the side near the pressure ring (411) and fixed to the outside of the base (420) on the side near the base (420).

9. A fabric stretch detection device with a clamping mechanism as described in claim 7, characterized in that: The radius of the locking rod (410) matches the radius of the locking hole (301), and the locking hole (301) has the same specifications as the telescopic hole.