Electronic fabric strength tester

Abstract

The utility model relates to the field of textile product testing instruments, in particular to an electronic fabric strength tester which comprises a machine base, and a machine frame and an operation panel are arranged on the machine base. A cross beam capable of moving up and down is connected to the rack in a sliding mode, an upper clamping device is fixedly connected to the lower end of the cross beam, and a lower clamping device is arranged on the machine base. Each of the upper clamp holder and the lower clamp holder comprises a fixed base, a movable block, a clamping block and a telescopic spring; a mounting groove is formed in the fixed base, blocking arms are arranged on the front side wall and the rear side wall of the mounting groove, and the clamping blocks are correspondingly arranged on the inner sides of the blocking arms; the moving block is arranged in the mounting groove, and the end, away from the moving block, of each clamping block is connected with the fixed base through a telescopic spring; a threaded hole corresponding to the clamping block is formed in the fixed base, the threaded hole penetrates through the blocking arm to be communicated with the mounting groove, and an adjusting rod is in threaded connection with the interior of the threaded hole; the clamping block is provided with an inclined groove used in cooperation with the adjusting rod. According to the utility model, the cloth to be tested can be effectively fixed, and the phenomenon that the cloth slips off from the clamp holder is avoided.

Description

Technical Field

[0001] The utility model relates to the field of textile product testing instruments, in particular to an electronic fabric strength tester. Background Art

[0002] With the rapid development of textile technology, new types of fabric materials emerge in an endless stream. As a result, the requirements for detection items are becoming more and more precise, and the requirements for detection equipment are also constantly increasing. The strength detection test of textile products is a necessary test item. The tensile strength is measured by stretching the fabric with a fabric strength tester.

[0003] At present, Chinese Patent Publication No. CN212904187U discloses a fabric strength testing device, including a base. The lower outer surface of the base is provided with an anti-slip fastening claw mechanism. The anti-slip fastening claw mechanism includes a circular suction cup, a connecting column, anti-slip patterns, and a fixing pin. The upper outer surface of the base is provided with a control panel and a support frame. The control panel is located on one side of the support frame. A cross beam is arranged inside the support frame. A lower gripper is arranged on the outer surface of one side of the cross beam. An upper gripper and a gauge rod are arranged at the lower end of the support frame. The upper gripper is located on one side of the gauge rod. An anti-slip and falling gripper mechanism is arranged on the lower outer surface of the upper gripper. The anti-slip and falling gripper mechanism includes a fixed base, a clamping claw, an anti-slip sleeve, a telescopic spring, and a clamping rod.

[0004] However, the clamping mechanism of this device clamps both sides of the end of the fabric through the elastic force of the springs on both sides. In the actual use process, the phenomenon of up and down shaking of the telescopic spring may occur, which affects the experimental data. Moreover, only clamping both sides of the end of the fabric, it is easy to have looseness and slippage between the fabric and the clamping claws, resulting in deviation of the experimental data. Therefore, for this device, the design of its clamping mechanism still needs to be further improved and optimized to improve the accuracy and reliability of the experimental data. Summary of the Utility Model

[0005] Therefore, in view of the above problems, the utility model provides an electronic fabric strength tester to solve the problem that the clamping device of the existing electronic fabric strength tester is prone to fabric looseness and slippage, thus affecting the accuracy of experimental data.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] An electronic fabric strength tester includes a machine base. A frame and an operation panel are arranged on the machine base. A cross beam that can move up and down is slidably connected to the frame. A lower gripper is fixedly connected to the lower end of the cross beam. A lower gripper corresponding to the upper gripper is arranged on the machine base.

[0008] The upper clamp and the lower clamp both include a fixed base, a moving block, a clamping block and a telescopic spring; an installation groove is formed in the fixed base, and retaining arms are arranged on the front and rear side walls of the installation groove, and each of the clamping blocks is correspondingly arranged inside the retaining arms; the moving block is detachably arranged in the installation groove, the shape of the moving block matches that of the clamping block, and one end of each clamping block away from the moving block is connected to the fixed base through a telescopic spring.

[0009] Threaded holes corresponding to the clamping blocks are arranged on the fixed base, the threaded holes penetrate through the retaining arms and communicate with the installation groove, and adjusting rods are threadedly connected in the threaded holes; inclined grooves used in cooperation with the adjusting rods are arranged on the clamping blocks.

[0010] Furthermore, grooves are arranged on both sides of the moving block, and protrusions matching the grooves are arranged on the clamping blocks.

[0011] Furthermore, an elastic rubber layer is coated on the outer surface of the moving block.

[0012] Furthermore, a handle is fixedly connected to one end of the adjusting rod away from the fixed base.

[0013] Furthermore, a handle is arranged at one end of the moving block away from the fixed base.

[0014] Furthermore, the width of the inclined groove is not less than the height of the protrusion, and the depth of the inclined groove gradually decreases in the direction away from the moving block.

[0015] Furthermore, the adjusting rod includes a threaded rod and a limiting rod fixedly connected, the threaded rod is threadedly connected with the threaded hole, and the limiting rod is located inside the retaining arm and the diameter of the limiting rod is larger than the diameter of the threaded hole.

[0016] Furthermore, a tensile sensor is fixedly connected between the cross beam and the upper clamp, and the tensile sensor is electrically connected to the operation panel.

[0017] By adopting the foregoing technical solutions, the beneficial effects of the utility model are:

[0018] 1. By setting a gripper for fixing the end of the fabric. The moving block is used to fix the end of the fabric in a U shape within the installation groove, effectively increasing the contact area between the fabric and the gripper. Moreover, since the fabrics on the left and right sides and at the bottom of the moving block are in different directions, when the fabric is pulled by an external force, the tensile force on the clamped part of the fabric will be dispersed into two perpendicular directions. This dispersed tensile force makes it difficult for the fabric to slide or loosen in a single direction, solving the problem that the two sides of the fixed fabric end are prone to slipping when the fabric end is placed vertically. By adjusting the adjusting rod, the clamping block can gradually approach the moving block and clamp the moving block, thereby effectively fixing the fabric to be tested, avoiding the fabric from slipping out and affecting the test results. At the same time, the moving block is fixed by the clamping blocks on both sides, and the fabrics on its left and right sides will be subjected to clamping forces from both sides, that is, the fabric is clamped twice, further reducing the risk of the fabric slipping.

[0019] 2. By setting corresponding protrusions and grooves, a stable clamping connection can be achieved between the clamping block and the moving block, effectively preventing the moving block from sliding. When trying to move the fabric, this buckle structure will generate greater resistance to prevent the fabric from slipping. At the same time, the contact area between the gripper and the fabric is further increased, increasing the friction force between the fabric and the gripper, and further ensuring the clamping effect of the fabric. Description of the Drawings

[0020] Figure 1 is a schematic structural view of the present utility model;

[0021] Figure 2 is a side view of the lower gripper of the present utility model (in the clamped state);

[0022] Figure 3 is a side view of the lower gripper of the present utility model (in the unclamped state). Detailed Embodiment

[0023] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0024] Reference Figures 1 to 3 , this embodiment provides a fabric strength tester, including a machine base 1, on which a frame 2 and an operation panel 3 are provided; a cross beam 21 that can move up and down is slidably connected to the frame 2, a upper gripper 41 is fixedly connected to the lower end of the cross beam 21, and a lower gripper 42 corresponding to the upper gripper 41 is provided on the machine base 1.

[0025] The upper clamp 41 and the lower clamp 42 both include a fixed base 5, a moving block 6, a clamping block 7 and a telescopic spring 8; an installation groove 51 is formed on the fixed base 5, and retaining arms 52 are arranged on the front and rear side walls of the installation groove 51, and each clamping block 7 is correspondingly arranged inside the retaining arm 52; the moving block 6 is detachably arranged in the installation groove 51, the shape of the moving block 6 matches that of the clamping block 7, and one end of each clamping block 7 away from the moving block 6 is connected to the fixed base 5 through a telescopic spring 8. The retaining arm 52 not only limits the installation position of the moving block 6, but also plays a role in limiting the clamping block 7 to prevent the clamping block 7 from shaking up and down and affecting the test data; the moving block 6 is used to fix the end of the fabric in a U shape in the installation groove 51, effectively increasing the contact area between the fabric and the clamp. Moreover, since the fabrics on the left and right sides and the bottom of the moving block 6 are in different directions, when the fabric is pulled by an external force, the tensile force on the clamped part of the fabric will be dispersed in two perpendicular directions. This dispersed tensile force makes it difficult for the fabric to slide or loosen in one direction, solving the problem that when the end of the fabric is placed vertically, the tensile force is concentrated in one direction and it is easier to slip off in this direction.

[0026] Threaded holes 53 corresponding to the clamping blocks 7 are arranged on the fixed base 5, the threaded holes 53 penetrate through the retaining arms 52 and communicate with the installation groove 51, and adjusting rods 9 are threadedly connected in the threaded holes 53; inclined grooves 71 for cooperating with the adjusting rods 9 are arranged on the clamping blocks 7. By adjusting the adjusting rods 9, the clamping blocks 7 can be gradually moved closer to the moving block 6 and the moving block 6 can be clamped, so that the fabric to be tested can be effectively fixed to prevent the fabric from slipping out and affecting the test result. At the same time, the moving block 6 is fixed by the clamping blocks 7 on both sides, and the fabrics on its left and right sides will be subjected to clamping forces from both sides, that is, the fabric is clamped twice, further reducing the risk of the fabric slipping off.

[0027] In this specific embodiment, grooves 61 are arranged on both sides of the moving block 6, and protrusions 72 matching the grooves 61 are arranged on the clamping blocks 7. The arrangement of the protrusions 72 and the grooves 61 enables stable clamping between the clamping blocks 7 and the moving block 6, effectively preventing the moving block 6 from sliding. When trying to move the fabric, this clamping structure will also generate greater resistance to prevent the fabric from slipping off. At the same time, it also increases the contact area between the clamp and the fabric, increasing the friction between the fabric and the clamp and further ensuring the clamping effect of the fabric.

[0028] In this specific embodiment, the outer surface of the moving block 6 is coated with an elastic rubber layer (not shown in the figure). The arrangement of the elastic rubber layer can further increase the friction with the fabric and prevent the fabric from sliding.

[0029] In this specific embodiment, a handle 93 is fixedly connected to the end of the adjusting rod 9 away from the fixed base 5. The handle 93 facilitates the adjustment of the adjusting rod 9.

[0030] In this specific embodiment, a handle 62 is provided at one end of the moving block 6 away from the fixed base 5. The handle 62 facilitates the removal or insertion of the moving block 6 into the installation groove 51.

[0031] In this specific embodiment, the width of the inclined groove 71 is not less than the height of the protrusion 72, and the depth of the inclined groove 71 gradually decreases in the direction away from the moving block 6. As the adjusting rod 9 gradually moves away from the clamping block 7, the clamping block 7 will move towards the moving block 6 under the action of the telescopic spring 8, thereby clamping the moving block 6; as the adjusting rod 9 gradually approaches the clamping block 7, a horizontal component force will be generated on the inclined groove 71 of the clamping block 7, causing the clamping block 7 to move away from the moving block 6, so that the moving block 6 can be smoothly removed.

[0032] In this specific embodiment, the adjusting rod 9 includes a threaded rod 91 and a limiting rod 92 fixedly connected. The threaded rod 91 is threadedly connected to the threaded hole 53, and the limiting rod 92 is located inside the retaining arm 52 and the diameter of the limiting rod 92 is greater than the diameter of the threaded hole 53. The threaded rod 91 is used to adjust the position of the limiting rod 92, and the diameter of the limiting rod 92 is limited to prevent the limiting rod 92 from falling out of the threaded hole 53.

[0033] In this specific embodiment, a tensile force sensor 10 is fixedly connected between the cross beam 21 and the upper clamp 41, and the tensile force sensor 10 is electrically connected to the operation panel 3. The tensile force sensor 10 is used to record the tensile force data generated during the test. The above-mentioned tensile force sensor 10 and operation panel 3 are both existing devices and will not be elaborated here.

[0034] The working process of the present utility model is as follows:

[0035] Adjust the adjusting rod 9 to move the adjusting rod 9 towards the clamping block 7, so that the clamping block 7 further compresses the telescopic spring 8 to release the clamping force of the clamping block 7 on the moving block 6. Then, take out the moving block 6 and place the end part of the fabric in the installation groove 51; then place the moving block 6 back into the installation groove 51, and adjust the adjusting rod 9 to move the adjusting rod 9 away from the clamping block 7. During this process, the clamping block 7 will gradually move towards the moving block 6 under the action of the telescopic spring 8 and effectively clamp the moving block 6, so that the fabric is firmly fixed in the upper clamp 41 or the lower clamp 42; fix the two ends of the fabric in the upper clamp 41 and the lower clamp 42 respectively, and then the test experiment on the fabric can be started; after the experiment is over, adjust the adjusting rod 9 again so that the clamping block 7 no longer clamps the moving block 6, and then take out the moving block 6 to remove the fabric.

[0036] Although the present utility model is specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes can be made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model as defined by the appended claims, and all such changes are within the protection scope of the present utility model.

Claims

1. An electronic fabric strength machine, comprising a machine base, characterized in that: The machine base is provided with a frame and an operation panel; the frame is slidably connected with a beam that can move up and down, the lower end of the beam is fixedly connected with an upper clamp, and the machine base is provided with a lower clamp corresponding to the upper clamp; The upper clamp and the lower clamp each include a fixed base, a moving block, a clamping block and a telescopic spring; the fixed base is provided with a mounting groove, and the front and rear side walls of the mounting groove are provided with blocking arms, and each of the clamping blocks is correspondingly arranged on the inner side of the blocking arms; the moving block is detachably arranged in the mounting groove, the shapes of the moving block and the clamping block match, and one end of each of the clamping blocks away from the moving block is connected to the fixed base through a telescopic spring; The fixing base is provided with a threaded hole corresponding to the clamping block, the threaded hole penetrates the barrier arm and is connected with the mounting groove, an adjusting rod is threadedly connected to the threaded hole; the clamping block is provided with an oblique groove used in conjunction with the adjusting rod.

2. The electronic fabric strength machine according to claim 1, characterized in that: Grooves are arranged on both sides of the moving block, and protrusions matching the grooves are arranged on the clamping block.

3. The electronic fabric strength machine according to claim 1, characterized in that: The outer surface of the moving block is covered with an elastic rubber layer.

4. The electronic fabric strength machine according to claim 1, characterized in that: One end of the adjusting rod away from the fixed base is fixedly connected with a handle.

5. The electronic fabric strength machine according to claim 1, characterized in that: A handle is arranged at one end of the moving block away from the fixed base.

6. The electronic fabric strength machine according to claim 2, characterized in that: The width of the inclined groove is not less than the height of the protrusion, and the depth of the inclined groove gradually decreases in a direction away from the moving block.

7. The electronic fabric strength machine according to claim 1, characterized in that: The adjusting rod comprises a fixedly connected threaded rod and a limiting rod, the threaded rod is threadedly connected to the threaded hole, the limiting rod is located inside the stop arm and the diameter of the limiting rod is greater than the diameter of the threaded hole.

8. The electronic fabric strength machine according to claim 1, characterized in that: A tension sensor is fixedly connected between the crossbeam and the upper clamp, and the tension sensor is electrically connected to the operation panel.

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