A testing device for the tensile properties of fire-fighting textile yarns

Abstract

The present invention relates to the technical field of textile yarn detection equipment, specifically a detection equipment for the tensile performance of fire-fighting textile yarns, including a base, a detection structure, a clamping structure, a mounting structure, a propulsion structure, a placement structure and a limiting structure; the tensile performance of the gauze strip is detected by the detection structure, and both ends of the gauze strip are clamped by the clamping structure, with high automation, improving the fixing efficiency of the gauze strip ends, thereby improving the detection efficiency, and at the same time facilitating the control and adjustment of the clamping force; the position of the upper clamping structure is quickly adjusted through the mounting structure, and then the maximum distance between the two chucks is adjusted, improving the applicability of the device; multiple gauze strip samples to be tested are quickly fixed through the placement structure, and the samples are automatically propelled through the propulsion structure, improving the efficiency of gauze strip detection; the gauze strip is initially clamped through the limiting structure, so that the gauze strip maintains a certain tension during feeding, avoiding wrinkles at the ends of the gauze strip when the clamping structure clamps the gauze strip.

Description

Technical Field

[0001] The present invention relates to the technical field of textile yarn detection equipment, and specifically relates to a detection equipment for the tensile performance of fire-fighting textile yarns. Background Art

[0002] Fire-fighting textile materials, as key components in fire-fighting protection equipment (such as fire-fighting suits, fire-fighting gloves, etc.) and fire-fighting facilities (such as fire-proof curtains, etc.), play a crucial role in ensuring personnel safety and suppressing the spread of fire; fire-fighting textile yarns, as the basic constituent units of these materials, their performance directly determines the quality and use effect of the final fire-fighting textile products. Among numerous performance indicators, the tensile performance is particularly crucial. Therefore, detection equipment is required to detect the tensile performance of textile yarns.

[0003] However, when the current textile yarn tensile performance detection equipment conducts tensile tests, it is unable to quickly test multiple gauze samples, and the efficiency of the tensile performance test is relatively low; at the same time, when fixing the textile cloth strips, it is necessary for the operator to manually load the materials, adjust the tightness of the clamping head by turning the bolt of the clamping head, and then clamp the gauze strip. When replacing the gauze strip, it is necessary to repeatedly loosen and tighten the bolt, and the fixing efficiency is relatively low. At the same time, due to manually controlling the clamping of the gauze strip, the clamping force is not easy to control. When the clamping force is small, the gauze strip is likely to slip during the tensile test. When the clamping force is too large, the gauze strip is easily broken at the clamping position, affecting the accuracy of the detection results; at the same time, since the maximum distance between the two clamping heads is fixed, it is not convenient to test the maximum tensile amount of some longer cloth strips, and it is not convenient to quickly adjust the distance between the two clamping heads according to the length of the tested gauze strip, resulting in different test effects for the tensile performance of gauze strips of different lengths and poor test effects. Summary of the Invention

[0004] Aiming at the problems in the prior art, the present invention provides a detection equipment for the tensile performance of fire-fighting textile yarns.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a detection equipment for the tensile performance of fire-fighting textile yarns, including a base, a detection structure provided on the base, a clamping structure provided on the detection structure, an installation structure provided on the detection structure, a propulsion structure provided on the installation structure, and a placement structure installed on the propulsion structure;

[0006] The detection structure includes an upright frame and a first motor fixedly connected to the upright frame. An upright frame is fixedly connected to the base. A first screw rod is rotatably connected to the upright frame. The output end of the first motor is fixedly connected to the first screw rod. A lifting plate is threadedly connected to the first screw rod. The lifting plate is slidably connected to the upright frame. A fixing strip is fixedly connected to the lifting plate. An installation plate is fixedly connected to the upright frame through an installation structure. A tension sensor is fixedly connected to the bottom end of the installation plate. An installation strip is fixedly connected to the bottom end of the tension sensor. A sliding strip is slidably connected inside the installation strip. A clamping structure is provided on both the sliding strip and the fixing strip. A limiting structure is provided on the installation strip. The limiting structure includes a second hydraulic rod and a push plate fixedly connected to the telescopic end of the second hydraulic rod. A second hydraulic rod is fixedly connected to one side of the installation strip. The push plate is fixedly connected to the sliding strip;

[0007] The clamping structure includes a second motor and a second screw rod fixedly connected to the output end of the second motor. A second motor is fixedly connected to both the sliding strip and the fixing strip. A second screw rod is rotatably connected inside both the sliding strip and the fixing strip. The thread directions at both ends of the second screw rod are opposite. Two sliding plates are threadedly connected to each second screw rod. One group of sliding plates is slidably connected to the fixing strip, and the other group of sliding plates is slidably connected to the sliding strip. A clamping block is fixedly connected to the sliding plate. Two convex blocks are provided on one of the two clamping blocks in the same group of clamping blocks, and two grooves are provided on the other clamping block. A wear-resistant layer is fixedly connected to the clamping block.

[0008] Specifically, two guiding columns are fixedly connected to the upright frame. The lifting plate is slidably connected to the guiding columns, and the installation plate is slidably connected to the guiding columns.

[0009] Specifically, two guiding shafts are fixedly connected to both the sliding strip and the fixing strip. The sliding plate is slidably connected to the guiding shafts.

[0010] Specifically, the installation structure includes a connecting frame and a limiting strip slidably connected to the connecting frame. A connecting frame is fixedly connected to one side of the installation plate. Multiple groups of limiting grooves are linearly arranged on the upright frame. The limiting strip is engaged with the limiting grooves. A fixing block is fixedly connected to the limiting strip. A fixing rod is fixedly connected to the connecting frame. The fixing block is slidably connected to the fixing rod. A tension spring is fixedly connected between the connecting frame and the fixing block.

[0011] Specifically, the cross-section of the limiting strip is a U-shaped structure, the cross-section of the fixing rod is a T-shaped structure, the cross-section of the connecting frame is a T-shaped structure, and the connecting frame is slidably connected to the upright frame.

[0012] Specifically, the propulsion structure includes a support frame and a slider. A support frame is fixedly connected to the connecting frame. A guiding groove is provided on the support frame. The slider is slidably connected to the inside of the guiding groove. A placement structure is fixedly connected to one side of the slider. The placement structure includes a placement box and a placement groove. A placement box is fixedly connected to one side of the slider. A fixing plate is fixedly connected to the placement box. Two pull rods are slidably connected to the fixing plate. A first hydraulic rod is fixedly connected to the support frame. The telescopic end of the first hydraulic rod is fixedly connected to a push block with a U-shaped cross-section. The bottom ends of the two pull rods are fixedly connected to an inserting block. The inserting block is inserted into the push block. A first spring is fixedly connected between the inserting block and the fixing plate.

[0013] Specifically, multiple linearly arranged placement grooves are provided on the placement box. Multiple groups of first guiding rollers are rotatably connected to the placement box. A U-shaped mounting frame is slidably connected to each placement groove. Two second guiding rollers are rotatably connected to the mounting frame. A connecting plate is fixed to the mounting frame. A second spring is fixedly connected between the connecting plate and the placement box. A connecting bar is fixedly connected to the mounting frame. A L-shaped pulling bar is fixedly connected to multiple connecting bars. Multiple guiding rods are fixedly connected to the inside of the placement box. The connecting bar is slidably connected to the guiding rod.

[0014] Specifically, a rotating shaft is fixedly connected to the end of the pulling bar. A rotating rod is rotatably connected to the rotating shaft. A jack is provided on the placement box.

[0015] Specifically, two sliding frames are symmetrically and slidably connected to the inside of the sliding bar. A pinch roller is rotatably connected to the sliding frame. Multiple connecting rods are fixedly connected to the sliding frame. The connecting rods are slidably connected to the sliding bar. A third spring is fixedly connected between the connecting rods and the sliding bar. A guiding bar is fixedly connected to the sliding bar. The guiding bar is slidably connected to the mounting bar.

[0016] Specifically, two symmetrical first sliding grooves are provided on the mounting bar. The end cross-section of the first sliding groove is a trapezoidal structure. Two symmetrical second sliding grooves are provided on the sliding bar. A guiding block is fixedly connected to the sliding frame. The guiding block is slidably connected to the first sliding groove. The guiding block is slidably connected to the second sliding groove.

[0017] The beneficial effects of the present invention are:

[0018] (1) A kind of fire-fighting textile yarn tensile property detection device described in the present invention, a detection structure is arranged on the base, and a clamping structure is arranged on the detection structure. The tensile property of the gauze strip is detected by the detection structure, and both ends of the gauze strip are clamped by the clamping structure. The automation degree is high, manual repeated rotation of bolts to clamp the gauze strip is avoided, the fixing efficiency of the end of the gauze strip is improved, and thus the detection efficiency is improved. At the same time, it is convenient to adjust the clamping force according to gauze strips of different thicknesses, improving the accuracy during tensile property detection.

[0019] (2) A kind of fire-fighting textile yarn tensile property detection device described in the present invention, an installation structure is arranged on the clamping structure. The position of the upper clamping structure is quickly adjusted through the installation structure, and then the maximum distance between the two chucks is adjusted, facilitating the detection of gauze strips of different lengths, and improving the detection effect and the applicability of the device.

[0020] (3) A kind of fire-fighting textile yarn tensile property detection device described in the present invention, a propulsion structure is arranged on the installation structure, and a placement structure is arranged on the propulsion structure. Multiple gauze strip samples to be tested are quickly fixed through the placement structure, and the samples to be tested are automatically propelled through the propulsion structure, improving the detection efficiency of the gauze strips.

[0021] (4) A kind of fire-fighting textile yarn tensile property detection device described in the present invention, a limiting structure is arranged on the clamping structure. The gauze strip is initially clamped through the limiting structure, so that the gauze strip maintains a certain tension during feeding, avoiding the gauze strip from wrinkling when the clamping structure clamps the gauze strip, and improving the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a fire-fighting textile yarn tensile property detection device provided by the present invention;

[0024] Figure 2 It is Figure 1 The enlarged schematic diagram of the structure of part A shown;

[0025] Figure 3 It is a schematic diagram of the connection structure between the vertical frame and the first motor of the present invention;

[0026] Figure 4 It is Figure 3 The enlarged schematic diagram of the structure of part B shown;

[0027] Figure 5 It is a schematic diagram of the connection structure between the connecting frame and the limiting strip of the present invention;

[0028] Figure 6Schematic diagram of the connection structure between the placement box and the placement slot of the present invention;

[0029] Figure 7 is Figure 6 enlarged schematic diagram of the structure of part C shown in the figure;

[0030] Figure 8 is Figure 6 enlarged schematic diagram of the structure of part D shown in the figure;

[0031] Figure 9 is Figure 6 enlarged schematic diagram of the structure of part E shown in the figure;

[0032] Figure 10 Schematic diagram of the connection structure between the installation bar and the limiting structure of the present invention;

[0033] Figure 11 Schematic diagram of the connection structure between the installation bar and the first sliding groove of the present invention;

[0034] Figure 12 Schematic diagram of the connection structure between the sliding plate and the clamping block of the present invention;

[0035] Figure 13 Schematic diagram of the connection structure between the second screw rod and the sliding plate of the present invention;

[0036] Figure 14 Schematic diagram of the connection structure between the connecting rod and the sliding bar of the present invention.

[0037] In the figure: 1, base; 2, detection structure; 201, vertical frame; 202, first motor; 203, first screw rod; 204, lifting plate; 205, guiding column; 206, fixing strip; 207, mounting plate; 208, tension sensor; 209, mounting strip; 210, sliding strip; 3, clamping structure; 301, second motor; 302, second screw rod; 303, sliding plate; 304, clamping block; 305, convex block; 306, groove; 307, wear-resistant layer; 308, guiding shaft; 4, mounting structure; 401, connecting frame; 402, limiting strip; 403, limiting groove; 404, fixing block; 405, fixing rod; 406, tension spring; 5, propulsion structure; 501, support frame; 502, guiding groove; 503, slider; 504, first hydraulic rod; 505, pushing block; 506, inserting block; 507, fixing plate; 508, pull rod; 509, first spring; 6, placing structure; 601, placing box; 602, placing groove; 603, first guiding roller; 604, mounting frame; 605, second guiding roller; 606, connecting plate; 607, second spring; 608, connecting strip; 609, guiding rod; 610, pulling strip; 611, rotating shaft; 612, rotating rod; 613, inserting hole; 7, limiting structure; 701, second hydraulic rod; 702, pushing plate; 703, first sliding groove; 704, sliding frame; 705, clamping roller; 706, guiding block; 707, second sliding groove; 708, connecting rod; 709, third spring; 710, guiding strip. Detailed implementation manners

[0038] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0039] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 10 , Figure 12 , Figure 13 and Figure 14 shown, a fire-fighting textile yarn stretching performance detection device of the present invention includes a base 1, a detection structure 2 provided on the base 1, a clamping structure 3 provided on the detection structure 2, a mounting structure 4 provided on the detection structure 2, a propulsion structure 5 provided on the mounting structure 4, and a placing structure 6 mounted on the propulsion structure 5;

[0040] The detection structure 2 includes a vertical frame 201 and a first motor 202 fixedly connected to the vertical frame 201. A vertical frame 201 is fixedly connected to the base 1. A first screw rod 203 is rotatably connected to the vertical frame 201. The output end of the first motor 202 is fixedly connected to the first screw rod 203. A lifting plate 204 is threadedly connected to the first screw rod 203. The lifting plate 204 is slidably connected to the vertical frame 201. A fixing strip 206 is fixedly connected to the lifting plate 204. An installation plate 207 is fixedly connected to the vertical frame 201 through an installation structure 4. A tension sensor 208 is fixedly connected to the bottom end of the installation plate 207. An installation strip 209 is fixedly connected to the bottom end of the tension sensor 208. A sliding strip 210 is slidably connected inside the installation strip 209. A clamping structure 3 is provided on both the sliding strip 210 and the fixing strip 206. A limiting structure 7 is provided on the installation strip 209. The limiting structure 7 includes a second hydraulic rod 701 and a push plate 702 fixedly connected to the telescopic end of the second hydraulic rod 701. A second hydraulic rod 701 is fixedly connected to one side of the installation strip 209. The push plate 702 is fixedly connected to the sliding strip 210;

[0041] The clamping structure 3 includes a second motor 301 and a second screw rod 302 fixedly connected to the output end of the second motor 301. A second motor 301 is fixedly connected to both the slide bar 210 and the fixed bar 206. A second screw rod 302 is rotatably connected to the inside of each of the slide bar 210 and the fixed bar 206. The thread directions at both ends of the second screw rod 302 are opposite. Two slide plates 303 are threadedly connected to each second screw rod 302. One group of the slide plates 303 is slidably connected to the fixed bar 206, and the other group of slide plates 303 is slidably connected to the slide bar 210. A clamping block 304 is fixedly connected to the slide plate 303. Two convex blocks 305 are provided on one of the two clamping blocks 304 in the same group, and two grooves 306 are provided on the other clamping block 304. A wear-resistant layer 307 is fixedly connected to the clamping block 304; Two guide columns 205 are fixedly connected to the vertical frame 201. The lifting plate 204 is slidably connected to the guide columns 205, and the mounting plate 207 is slidably connected to the guide columns 205; Two guide shafts 308 are fixedly connected to each of the slide bar 210 and the fixed bar 206. The slide plate 303 is slidably connected to the guide shafts 308;When it is necessary to conduct a tensile performance test on the gauze strip, the second hydraulic rod 701 can be started. The second hydraulic rod 701 drives the push plate 702 to move, and the push plate 702 drives the slide bar 210 to slide. The notch on the slide bar 210 slides to the outside of the gauze strip. Then, the first motor 202 is started, and the first motor 202 drives the first screw rod 203 to rotate. The rotation of the first screw rod 203 drives the lifting plate 204 to slide on the vertical frame 201. The lifting plate 204 rises to the bottom end of the gauze strip. Then, the second motor 301 on the fixing strip 206 is started, and the second motor 301 drives the second screw rod 302 to rotate. Since the thread directions at both ends of the second screw rod 302 are opposite, the threads drive the two slide plates 303 to slide towards each other. The setting of the guide shaft 308 improves the stability of the sliding of the slide plates 303. The slide plates 303 slide towards each other, and then drive the two clamping blocks 304 to slide towards each other. The two clamping blocks 304 then clamp the gauze strip. The convex block 305 on one clamping block 304 meshes with the groove 306 on the other clamping block 304. At the same time, the clamping block 304 is provided with a wear-resistant layer 307, which improves the clamping effect and effectively avoids the gauze strip from slipping during the tensile test. When it is necessary to test gauze strips of different thicknesses, the parameters of the second motor 301 can be adjusted according to the thickness of the gauze strip, thereby controlling the clamping force and avoiding the gauze strip from breaking due to local stress, improving the accuracy during detection. After the lower clamping block 304 clamps the bottom end of the gauze strip, the first motor 202 drives the first screw rod 203 to rotate, thereby driving the lifting plate 204 to move towards each other, driving the clamping block 304 to move downward, and then stretching the gauze strip downward until the gauze strip is completely pulled out from the placement structure 6. At this time, the second motor 301 on the slide bar 210 is started to drive the two clamping blocks 304 to clamp the top end of the gauze strip. After the clamping is completed, a tensile test is conducted on the gauze strip. During the tensile test, the first motor 202 is continuously started, and the first motor 202 drives the lifting plate 204 and the lower clamping block 304 to move downward to stretch the gauze strip. The gauze strip pulls the upper clamping block 304 and the slide bar 210, and the slide bar 210 pulls the mounting bar 209, and the mounting bar 209 pulls the tensile sensor 208. The tensile sensor 208 feeds back the tensile force to the computer terminal. When the gauze strip breaks under the ultimate tensile force, the first motor 202 stops rotating, and the tensile sensor 208 transmits the ultimate tensile force data to the computer terminal, obtaining accurate tensile test results, avoiding the gauze strip from breaking at the clamping block 304, and at the same time improving the fixing efficiency of the end of the gauze strip. The setting of the guide post 205 improves the stability of the up and down sliding of the lifting plate 204.;

[0042] Specifically, such as Figure 4 and Figure 5As shown, the installation structure 4 includes a connecting frame 401 and a limiting strip 402 slidably connected to the connecting frame 401. One side of the mounting plate 207 is fixedly connected to the connecting frame 401. There are multiple groups of limiting grooves 403 linearly arranged on the vertical frame 201. The limiting strip 402 is engaged with the limiting grooves 403. A fixing block 404 is fixedly connected to the limiting strip 402. A fixing rod 405 is fixedly connected to the connecting frame 401. The fixing block 404 is slidably connected to the fixing rod 405. A tension spring 406 is fixedly connected between the connecting frame 401 and the fixing block 404. The cross-section of the limiting strip 402 is a U-shaped structure. The cross-section of the fixing rod 405 is a T-shaped structure. The cross-section of the connecting frame 401 is a T-shaped structure. The connecting frame 401 is slidably connected to the vertical frame 201. When it is necessary to adjust the position of the upper clamping block 304, the limiting strip 402 can be pulled. The limiting strip 402 drives the fixing block 404 to slide together. The tension spring 406 elongates. The limiting strip 402 is no longer engaged with the limiting grooves 403 on the vertical frame 201. At this time, the connecting frame 401 can be slid up and down. The connecting frame 401 drives the mounting plate 207 to slide up and down together, driving the tension sensor 208, the mounting strip 209, the sliding strip 210 and the upper clamping block 304 to move up and down together. After adjusting to the appropriate position, the limiting strip 402 can be released. The tension spring 406 resets to drive the limiting strip 402 to engage with other limiting grooves 403 on the vertical frame 201, thereby quickly adjusting the maximum distance between the upper and lower clamping blocks 304, facilitating the detection of gauze strips of different lengths. The setting of the fixing rod 405 improves the sliding stability of the fixing block 404 and at the same time prevents the limiting strip 402 from slipping off.

[0043] Specifically, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the propulsion structure 5 includes a support frame 501 and a slider 503. A support frame 501 is fixedly connected to the connecting frame 401. A guide groove 502 is provided on the support frame 501. The slider 503 is slidably connected to the inside of the guide groove 502. A placement structure 6 is fixedly connected to one side of the slider 503. The placement structure 6 includes a placement box 601 and a placement groove 602. A placement box 601 is fixedly connected to one side of the slider 503. A fixed plate 507 is fixedly connected to the placement box 601. Two pull rods 508 are slidably connected to the fixed plate 507. A first hydraulic rod 504 is fixedly connected to the support frame 501. A push block 505 with a U-shaped cross-section is fixedly connected to the telescopic end of the first hydraulic rod 504. A plug 506 is fixedly connected to the bottom ends of the two pull rods 508. The plug 506 is inserted into the push block 505. A first spring 509 is fixedly connected between the plug 506 and the fixed plate 507;

[0044] The placement box 601 is provided with a plurality of linearly arranged placement grooves 602. A plurality of groups of first guide rollers 603 are rotatably connected to the placement box 601. A mounting frame 604 with a U-shaped cross-section is slidably connected in each placement groove 602. Two second guide rollers 605 are rotatably connected to the mounting frame 604. A connecting plate 606 is fixed to the mounting frame 604. A second spring 607 is fixedly connected between the connecting plate 606 and the placement box 601. A connecting strip 608 is fixedly connected to the mounting frame 604. A pull strip 610 with an L-shaped cross-section is fixedly connected to a plurality of the connecting strips 608. A plurality of groups of guide rods 609 are fixedly connected inside the placement box 601. The connecting strip 608 is slidably connected to the guide rod 609; A rotating shaft 611 is fixedly connected to the end of the pull strip 610. A rotating rod 612 is rotatably connected to the rotating shaft 611. A jack 613 is provided on the placement box 601;When it is necessary to detect multiple gauze strip samples, the placement box 601 can be placed flat on the desktop first, and then the pull bar 610 is pulled. The pull bar 610 drives the sliding of multiple connecting bars 608. The setting of the guide rod 609 improves the sliding stability of the connecting bars 608. The sliding of the connecting bars 608 drives the sliding of the mounting frame 604. The sliding of the mounting frame 604 drives the movement of the connecting plate 606, and the second spring 607 is compressed. Then the lever 612 on the rotating shaft 611 is rotated. After rotating 90 degrees, the lever 612 is inserted into the jack 613 to prevent the connecting bar 608 and the mounting frame 604 from resetting under the elastic force of the second spring 607. At this time, the space in the placement groove 602 for placing the gauze strip is relatively large. Multiple gauze strips are sequentially placed in the placement groove 602, so that the gauze strips are between the first guide roller 603 and the second guide roller 605. Then the pull bar 610 is pulled again to separate the lever 612 from the jack 613, and then the lever 612 is rotated to make it in a vertical state. At this time, the pull bar 610 is released, and the reset of multiple second springs 607 drives the reset of multiple connecting plates 606 and the mounting frame 604. The mounting frame 604 pushes the second guide roller 605 to move, thereby cooperating with the first guide roller 603 to initially clamp and fix the samples of multiple gauze strips to be detected. Then the placement box 601 is installed on the support frame 501. First, the slider 503 on one side of the placement box 601 is aligned with the guide groove 502 on the support frame 501 and then slid in. After partially sliding in, two pull rods 508 can be pulled. The pull rods 508 drive the insertion block 506 to rise, and the first spring 509 is compressed. The placement box 601 and the slider 503 are continuously pushed in until the insertion block 506 is directly above the push block 505. Then the two pull rods 508 are released, and the reset of the first spring 509 drives the insertion block 506 and the push block 505 to be inserted and connected. At this time, the placement box 601 is installed. When the clamping structure detects and removes a gauze strip inside the placement groove 602 and finishes the detection, after the second hydraulic rod 701 drives the slide bar 210 to retract into the installation bar 209, the first hydraulic rod 504 is started. The first hydraulic rod 504 pushes the push block 505, the insertion block 506, the pull rod 508, the fixing plate 507 and the placement box 601 to move, thereby pulling the next placement groove 602 and the gauze strip to be detected inside the placement groove 602 to one side of the slide bar 210. Then the second hydraulic rod 701 is started so that the clamping blocks 304 on the slide bar 210 are on both sides of the gauze strip to be detected, and then the clamping detection operation is carried out. In this way, the rapid automatic feeding of the gauze strips is realized, and the detection efficiency is improved;

[0045] Specifically, such as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 14As shown, two sliding brackets 704 are symmetrically and slidably connected inside the sliding bar 210. A pinch roller 705 is rotatably connected to the sliding bracket 704. A plurality of connecting rods 708 are fixedly connected to the sliding bracket 704. The connecting rods 708 are slidably connected to the sliding bar 210. A third spring 709 is fixedly connected between the connecting rod 708 and the sliding bar 210. A guiding bar 710 is fixedly connected to the sliding bar 210. The guiding bar 710 is slidably connected to the mounting bar 209. Two symmetrical first sliding grooves 703 are provided on the mounting bar 209. The end cross-section of the first sliding groove 703 is a trapezoidal structure. Two symmetrical second sliding grooves 707 are provided on the sliding bar 210. A guiding block 706 is fixedly connected to the sliding bracket 704. The guiding block 706 is slidably connected to the first sliding groove 703. The guiding block 706 is slidably connected to the second sliding groove 707. When the second hydraulic rod 701 drives the sliding bar 210 to slide, when the guiding block 706 on the sliding bar 210 slides out of the first sliding groove 703 on the mounting bar 209, the third spring 709 resets, thereby driving the connecting rods 708 on both sides of the gauze strip to slide towards each other. The connecting rod 708 drives the sliding bracket 704 to slide towards each other. The sliding bracket 704 drives the pinch roller 705 to move. At the same time, the guiding block 706 slides in the second sliding groove 707. The two pinch rollers 705 clamp the gauze strip, so that when the lower clamping block 304 clamps the gauze strip and pulls it downward, the gauze strip can maintain a certain tension, avoiding the soft and dropping of the gauze strip during feeding. When the gauze strip completely exits from the inside of the placement box 601, it will not bend either. Then, the gauze strip is clamped by the clamping structure above, and then the tensile performance test is carried out, avoiding the generation of wrinkles at the end of the gauze strip during clamping. When the test is completed, the tested gauze strip sample is taken off. Then, the second hydraulic rod 701 contracts to drive the push plate 702 and the sliding bar 210 to slide. Since the entrance of the first sliding groove 703 is a trapezoidal structure, when the guiding block 706 abuts against the inclined position of the first sliding groove 703 and the second hydraulic rod 701 continues to contract, when the sliding bar 210 continues to slide, the two guiding blocks 706 will slide horizontally and away from each other in the second sliding groove 707, thereby driving the sliding brackets 704 to slide away from each other. The sliding bracket 704 drives the connecting rods 708 to slide away from each other. The third spring 709 is compressed. The distance between the two pinch rollers 705 increases. In this way, when the sliding bar 210 slides out of a part of the mounting bar 209, due to the large distance between the pinch rollers 705, it can smoothly move to both sides of the gauze strip until the guiding block 706 completely slides out and only then will the abutting effect of the first sliding groove 703 on the guiding block 706 be lost, and the third spring 709 can reset to drive the pinch rollers 705 to clamp the gauze strip.

[0046] When the present invention is in use, first, when it is necessary to perform a tensile property test on a gauze strip, the second hydraulic rod 701 can be started. The second hydraulic rod 701 drives the push plate 702 to move. The push plate 702 drives the slide bar 210 to slide. The notch on the slide bar 210 slides to the outside of the gauze strip. Then, the first motor 202 is started. The first motor 202 drives the first screw rod 203 to rotate. The rotation of the first screw rod 203 drives the lifting plate 204 to slide on the vertical frame 201. The lifting plate 204 rises to the bottom end of the gauze strip. Then, the second motor 301 on the fixing strip 206 is started. The second motor 301 drives the second screw rod 302 to rotate. Since the thread directions at both ends of the second screw rod 302 are opposite, the threads drive the two slide plates 303 to slide towards each other. The arrangement of the guide shaft 308 improves the sliding stability of the slide plates 303. The slide plates 303 slide towards each other, and then drive the two clamping blocks 304 to slide towards each other. The two clamping blocks 304 then clamp the gauze strip. The convex block 305 on one clamping block 304 meshes with the groove 306 on the other clamping block 304. At the same time, the clamping block 304 is provided with a wear-resistant layer 307, which improves the clamping effect and effectively avoids the slippage of the gauze strip during the tensile test. When it is necessary to test gauze strips of different thicknesses, the parameters of the second motor 301 can be adjusted according to the thickness of the gauze strip, thereby controlling the clamping force and avoiding the breakage of the gauze strip caused by local stress, improving the accuracy during detection. After the lower clamping block 304 clamps the bottom end of the gauze strip, the first motor 202 drives the first screw rod 203 to rotate, thereby driving the lifting plate 204 to move towards each other, driving the clamping block 304 to move downward, and then stretching the gauze strip downward until the gauze strip is completely pulled out from the placement structure 6. At this time, the second motor 301 on the slide bar 210 is started to drive the two clamping blocks 304 to clamp the top end of the gauze strip. After the clamping is completed, a tensile test is performed on the gauze strip. During the tensile test, the first motor 202 is continuously started. The first motor 202 drives the lifting plate 204 and the lower clamping block 304 to move downward to stretch the gauze strip. The gauze strip pulls the upper clamping block 304 and the slide bar 210. The slide bar 210 pulls the installation bar 209. The installation bar 209 pulls the tensile sensor 208. The tensile sensor 208 feeds back the tensile force to the computer terminal. When the gauze strip breaks under the ultimate tensile force, the first motor 202 stops rotating. The tensile sensor 208 transmits the ultimate tensile force data to the computer terminal. The obtained tensile test result is accurate, avoiding the breakage of the gauze strip at the clamping block 304 and improving the fixing efficiency of the end of the gauze strip at the same time. The arrangement of the guide post 205 improves the up-and-down sliding stability of the lifting plate 204;

[0047] Then, when it is necessary to adjust the position of the upper clamping block 304, the limit bar 402 can be pulled. The limit bar 402 drives the fixed block 404 to slide together, the tension spring 406 elongates, and the limit bar 402 no longer engages with the limit slot 403 on the vertical frame 201. At this time, the connecting frame 401 can be slid up and down. The connecting frame 401 drives the mounting plate 207 to slide up and down together, driving the tension sensor 208, the mounting strip 209, the sliding strip 210 and the upper clamping block 304 to move up and down together. After adjusting to the appropriate position, the limit bar 402 can be released, and the tension spring 406 resets to drive the limit bar 402 to engage with other limit slots 403 on the vertical frame 201, thereby quickly adjusting the maximum distance between the upper and lower clamping blocks 304, facilitating the detection of gauze strips of different lengths. The setting of the fixed rod 405 improves the sliding stability of the fixed block 404 and at the same time prevents the limit bar 402 from slipping off;

[0048] Secondly, when it is necessary to detect multiple gauze strip samples, the placement box 601 can be first placed flat on the desktop, and then the pull bar 610 is pulled. The pull bar 610 drives the sliding of multiple connecting bars 608. The setting of the guide rod 609 improves the sliding stability of the connecting bars 608. The sliding of the connecting bars 608 drives the sliding of the mounting frame 604. The sliding of the mounting frame 604 drives the movement of the connecting plate 606, and the second spring 607 is compressed. Then, the lever 612 on the rotating shaft 611 is rotated. After rotating 90 degrees, the lever 612 is inserted into the jack 613 to prevent the connecting bar 608 and the mounting frame 604 from resetting under the elastic force of the second spring 607. At this time, the space for placing the gauze strip in the placement groove 602 is relatively large. Multiple gauze strips are sequentially placed in the placement groove 602, so that the gauze strips are between the first guide roller 603 and the second guide roller 605. Then, the pull bar 610 is pulled again to separate the lever 612 from the jack 613, and then the lever 612 is rotated to make it in a vertical state. At this time, the pull bar 610 is released, and the reset of multiple second springs 607 drives the reset of multiple connecting plates 606 and the mounting frame 604. The mounting frame 604 pushes the second guide roller 605 to move, thereby initially clamping and fixing the samples of multiple gauze strips to be tested in cooperation with the first guide roller 603. Then, the placement box 601 is installed on the support frame 501. First, the slider 503 on one side of the placement box 601 is aligned with the guide groove 502 on the support frame 501 and then slides in. After partially sliding in, two pull rods 508 can be pulled. The pull rods 508 drive the insertion block 506 to rise, and the first spring 509 is compressed. The placement box 601 and the slider 503 are continuously pushed in until the insertion block 506 is directly above the push block 505. Then, the two pull rods 508 are released, and the reset of the first spring 509 drives the insertion block 506 and the push block 505 to be inserted. At this time, the placement box 601 is installed. When the clamping structure detects and removes a gauze strip inside one placement groove 602 and finishes the detection, after the second hydraulic rod 701 drives the slide bar 210 to retract into the mounting bar 209, the first hydraulic rod 504 is started. The first hydraulic rod 504 pushes the push block 505, the insertion block 506, the pull rods 508, the fixed plate 507 and the placement box 601 to move, thereby pulling the next placement groove 602 and the gauze strip to be tested inside the placement groove 602 to one side of the slide bar 210. Then, by starting the second hydraulic rod 701, the clamping blocks 304 on the slide bar 210 are placed on both sides of the gauze strip to be tested, and then the clamping detection operation is performed. In this way, reciprocatingly, the rapid automatic feeding of the gauze strip is realized, and the detection efficiency is improved;

[0049] Finally, when the second hydraulic rod 701 drives the slide bar 210 to slide, when the guide block 706 on the slide bar 210 slides out of the first chute 703 on the mounting bar 209, the third spring 709 resets, thereby driving the connecting rods 708 on both sides of the gauze strip to slide towards each other. The connecting rods 708 drive the carriage 704 to slide towards each other. The carriage 704 drives the pinch rollers 705 to move. At the same time, the guide block 706 slides in the second chute 707. The two pinch rollers 705 clamp the gauze strip, so that when the lower clamping block 304 clamps the gauze strip and pulls it downwards, the gauze strip can maintain a certain tension, avoiding the soft dropping of the gauze strip during feeding. When the gauze strip completely exits the inside of the placement box 601, it will not bend either. Then, the gauze strip is clamped by the clamping structure above, and then the tensile performance is detected, avoiding wrinkles at the end of the gauze strip during clamping. After the detection is completed, the detected gauze strip sample is removed. Then, the second hydraulic rod 701 contracts to drive the push plate 702 and the slide bar 210 to slide. Since the entrance of the first chute 703 is a trapezoidal structure, when the guide block 706 abuts against the inclined position of the first chute 703 and the second hydraulic rod 701 continues to contract, when the slide bar 210 continues to slide, the two guide blocks 706 will slide horizontally and away from each other in the second chute 707, thereby driving the carriage 704 to slide away from each other. The carriage 704 drives the connecting rods 708 to slide away from each other, and the third spring 709 is compressed. The distance between the two pinch rollers 705 increases. In this way, when the slide bar 210 slides out of a part of the mounting bar 209, since the distance between the pinch rollers 705 is large, it can smoothly move to both sides of the gauze strip until the guide block 706 completely slides out and the abutting effect of the first chute 703 on the guide block 706 is lost, and the third spring 709 can reset to drive the pinch rollers 705 to clamp the gauze strip.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0051] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fire-fighting textile yarn tensile property detection device, characterized in that, It includes a base, a detection structure provided on the base, a clamping structure provided on the detection structure, an installation structure provided on the detection structure, a propulsion structure provided on the installation structure, and a placement structure installed on the propulsion structure; The detection structure includes a vertical frame and a first motor fixedly connected to the vertical frame. A vertical frame is fixedly connected to the base. A first screw rod is rotatably connected to the vertical frame. The output end of the first motor is fixedly connected to the first screw rod. A lifting plate is threadedly connected to the first screw rod. The lifting plate is slidably connected to the vertical frame. A fixed strip is fixedly connected to the lifting plate. An installation plate is fixedly connected to the vertical frame through the installation structure. A tension sensor is fixedly connected to the bottom end of the installation plate. An installation strip is fixedly connected to the bottom end of the tension sensor. A sliding strip is slidably connected to the inside of the installation strip. A clamping structure is provided on each of the sliding strip and the fixed strip. A limiting structure is provided on the installation strip. The limiting structure includes a second hydraulic rod and a push plate fixedly connected to the telescopic end of the second hydraulic rod. A second hydraulic rod is fixedly connected to one side of the installation strip. The push plate is fixedly connected to the sliding strip; The clamping structure includes a second motor and a second screw rod fixedly connected to the output end of the second motor. A second motor is fixedly connected to each of the sliding strip and the fixed strip. A second screw rod is rotatably connected to the inside of each of the sliding strip and the fixed strip. The thread directions at both ends of the second screw rod are opposite. Two sliding plates are threadedly connected to each second screw rod. One group of sliding plates is slidably connected to the fixed strip, and the other group of sliding plates is slidably connected to the sliding strip. A clamping block is fixedly connected to the sliding plate. Two convex blocks are provided on one of the two clamping blocks in the same group, and two grooves are provided on the other clamping block. A wear-resistant layer is fixedly connected to the clamping block; The placement structure includes a placement box and placement grooves; Multiple linearly arranged placement grooves are provided on the placement box. Multiple groups of first guide rollers are rotatably connected to the placement box. An installation frame with a U-shaped cross-section is slidably connected to each placement groove. Two second guide rollers are rotatably connected to the installation frame. A connecting plate is fixed to the installation frame. A second spring is fixedly connected between the connecting plate and the placement box. A connecting strip is fixedly connected to the installation frame. A pull strip with an L-shaped cross-section is fixedly connected to multiple connecting strips. Multiple groups of guide rods are fixedly connected to the inside of the placement box. The connecting strip is slidably connected to the guide rod.

2. The tensile property detection device for a fire-fighting textile yarn according to claim 1, wherein: Two guide columns are fixedly connected to the vertical frame. The lifting plate is slidably connected to the guide columns. The installation plate is slidably connected to the guide columns.

3. The fire-fighting textile yarn tensile property detection device according to claim 1, characterized in that: Two guide shafts are fixedly connected to each of the sliding strip and the fixed strip. The sliding plate is slidably connected to the guide shafts.

4. The tensile property detection device for a fire-fighting textile yarn according to claim 1, characterized in that: The installation structure includes a connecting frame and a limiting strip slidably connected to the connecting frame. One side of the mounting plate is fixedly connected to the connecting frame. A plurality of limiting grooves are linearly arranged on the vertical frame. The limiting strip is engaged with the limiting groove. A fixing block is fixedly connected to the limiting strip. A fixing rod is fixedly connected to the connecting frame. The fixing block is slidably connected to the fixing rod. A tension spring is fixedly connected between the connecting frame and the fixing block.

5. The tensile property detection device for a fire-fighting textile yarn according to claim 4, characterized in that: The cross-section of the limiting strip is a U-shaped structure. The cross-section of the fixing rod is a T-shaped structure. The cross-section of the connecting frame is a T-shaped structure. The connecting frame is slidably connected to the vertical frame.

6. The fire-fighting textile yarn tensile property detection device according to claim 4, characterized in that: The propulsion structure includes a support frame and a slider. The connecting frame is fixedly connected to the support frame. A guiding groove is provided on the support frame. The slider is slidably connected to the inside of the guiding groove. A placement structure is fixedly connected to one side of the slider. A placement box is fixedly connected to one side of the slider. A fixing plate is fixedly connected to the placement box. Two pull rods are slidably connected to the fixing plate. A first hydraulic rod is fixedly connected to the support frame. The telescopic end of the first hydraulic rod is fixedly connected to a push block with a U-shaped cross-section. The bottom ends of the two pull rods are fixedly connected to an insertion block. The insertion block is inserted into the push block. A first spring is fixedly connected between the insertion block and the fixing plate.

7. The tensile property testing device for a fire-fighting textile yarn according to claim 1, characterized in that: A rotating shaft is fixedly connected to the end of the pulling strip. A rotating rod is rotatably connected to the rotating shaft. A jack is provided on the placement box.

8. A fire-fighting textile yarn tensile property detection device according to claim 1, characterized in that: Two sliding frames are symmetrically and slidably connected to the inside of the sliding strip. A pinch roller is rotatably connected to the sliding frame. A plurality of connecting rods are fixedly connected to the sliding frame. The connecting rods are slidably connected to the sliding strip. A third spring is fixedly connected between the connecting rods and the sliding strip. A guiding strip is fixedly connected to the sliding strip. The guiding strip is slidably connected to the mounting strip.

9. The tensile property testing device for a fire-fighting textile yarn according to claim 8, wherein: Two symmetrical first sliding grooves are provided on the mounting strip. The end cross-section of the first sliding groove is a trapezoidal structure. Two symmetrical second sliding grooves are provided on the sliding strip. A guiding block is fixedly connected to the sliding frame. The guiding block is slidably connected to the first sliding groove. The guiding block is slidably connected to the second sliding groove.

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