Non-woven fabric tensile property detection device

Abstract

The invention relates to a detection device, in particular to a non-woven fabric tensile property detection device. Comprising a base, supporting columns, a cross beam, fixing frames, rotating rods, clamping plates, linear guide rails, connecting bases and guide rods, the supporting columns are arranged at the top end of the base in a bilateral symmetry mode, the top ends of the two supporting columns are connected with the cross beam, the left side and the right side of the front end of the cross beam are both connected with the fixing frames, the left fixing frame is fixedly connected with the cross beam, and the right fixing frame is slidably connected with the cross beam; rotating rods are rotatably connected to the fixing frames, guide rods are arranged at the inner bottom ends of the fixing frames, connecting seats are slidably connected to the left and right sides of the guide rods, clamping plates are arranged at the top ends of the connecting seats, and linear guide rails are symmetrically arranged at the inner bottom ends of the fixing frames in the front-back direction. The non-woven fabric is wound on the rotating rod, the rotating rod is clamped by the clamping plate, a traditional non-woven fabric clamping mode is changed, and the problem that stress distribution is uneven due to the fact that the non-woven fabric is clamped by the clamping plate component in traditional equipment is effectively solved.

Description

Technical Field

[0001] The present invention relates to a detection device, and more particularly to a non-woven fabric tensile property detection device. Background Art

[0002] The mechanical property test of materials is an important basic technology in the engineering field and is widely used in the quality control of various materials and product R & D. As one of the core indicators of the mechanical properties of materials, the accuracy and reliability of the testing equipment for tensile properties directly affect the accuracy of the test results. At present, the internationally common methods for material tensile testing are mainly based on standardized test procedures and equipment, and these technologies provide important data support for the development of materials science.

[0003] Existing tensile testing equipment has obvious technical limitations when testing flexible materials such as non-woven fabrics: Existing tensile testing equipment generally uses traditional parallel clamping plates to clamp non-woven fabrics, and this clamping method will cause significant stress concentration phenomena in the clamping area. This stress concentration will cause the non-woven fabric specimen to break prematurely near the clamping end, seriously affecting the validity of the test data. Summary of the Invention

[0004] In order to overcome the disadvantages of the traditional clamping method that is prone to cause excessive local pressure and obvious stress concentration phenomena in the clamping area, the purpose of the present invention is to provide a non-woven fabric tensile property detection device.

[0005] The technical implementation solution of the present invention is: A non-woven fabric tensile property detection device includes a base, support columns, a cross beam, fixed frames, rotating rods, clamping plates, linear guide rails, connecting seats, and guide rods. Support columns are symmetrically arranged on the left and right at the top of the base. Cross beams are connected to the tops of the two support columns. Fixed frames are connected to the left and right sides at the front end of the cross beam. The left fixed frame is fixedly connected to the cross beam, and the right fixed frame is slidably connected to the cross beam. Rotating rods are rotatably connected to the fixed frames. Guide rods are provided at the inner bottom ends of the fixed frames. Connecting seats are slidably connected to the left and right sides of the guide rods. Clamping plates are provided at the tops of the connecting seats. Linear guide rails are symmetrically arranged at the front and rear of the inner bottom ends of the fixed frames. The linear guide rails each have two moving parts. The moving parts on the left side of the two linear guide rails are connected to the left connecting seat, and the moving parts on the right side of the two linear guide rails are connected to the right connecting seat.

[0006] Optionally, it further includes pressing plates and second elastic members. The connecting seat is divided into two parts: a connecting sleeve and a support seat. The connecting sleeve is connected to the moving parts of the linear guide rails on the front and rear sides. The support seat is used to support the clamping plate. The connecting sleeve is slidably connected to the support seat. A second elastic member is connected between the connecting sleeve and the support seat. Pressing plates are connected to the front connecting sleeves of the connecting seats.

[0007] Optionally, it further includes an auxiliary clamping mechanism, which includes a pull plate, a fixed block, an extrusion rod and a fifth elastic member. Fixed blocks are symmetrically arranged in the front and rear on the clamping plates of the left and right fixing frames close to each other. A pull plate is slidably connected to the two fixed blocks. Extrusion rods are symmetrically arranged in the front and rear on the connecting seats of the left and right fixing frames close to each other. A slope is provided on one side of each extrusion rod close to the pull plate, and this slope abuts against the pull plate.

[0008] Optionally, the cloth rolling mechanism includes a cloth rolling motor, a fixed rod, a pull rod, an extrusion block, a wedge-shaped block, a connecting member, a pressing rod and a first elastic member. Cloth rolling motors are provided at the rear ends of the fixing frames. The rotating rod is a hollow circular tube formed by splicing multiple arc-shaped plates. Fixed rods are rotatably connected to the fixing frames. The fixed rods are located inside the rotating rod and are connected to the output shafts of the cloth rolling motors. Connecting members are connected between the arc-shaped plates and the fixed rods. Pull rods are slidably connected to the inside of the fixed rods. The rear ends of the pull rods are connected with extrusion blocks. Wedge-shaped blocks are provided on one side of each arc-shaped plate close to the extrusion block. Arc-shaped grooves for the extrusion blocks to slide are circumferentially formed in the middle of the fixed rods. The extrusion blocks abut against the wedge-shaped blocks. Pressing rods are slidably connected to the left and right sides at the front ends of the fixing frames. First elastic members are connected between the pressing rods and the fixing frames. The pressing rods and the pressing plates are in the same vertical plane.

[0009] Optionally, it further includes a driving mechanism, which includes a driving motor, a screw rod and a connecting plate. A driving motor is provided on the left side at the rear end of the cross beam. A screw rod is rotatably connected to the right side at the rear end of the cross beam. The screw rod is connected to the output shaft of the driving motor. A connecting plate is threadedly connected to the screw rod. A through groove is formed on the right side of the cross beam. The connecting plate slides in the through groove, and the connecting plate is connected to the right fixing frame.

[0010] Optionally, it further includes a buffer frame and buffer blocks. A buffer frame is connected to the right end of the connecting plate, and multiple groups of buffer blocks are spacedly arranged at the inner bottom end of the through groove.

[0011] Optionally, the buffer frame includes a connecting handle, a rotating block, a third elastic member, a buffer round rod and a fourth elastic member. A connecting handle is connected to the right end of the connecting plate. A rotating block is rotatably connected to the connecting handle. A third elastic member is connected between the rotating block and the connecting handle. A buffer round rod is slidably connected to the rotating block. A fourth elastic member is connected between the buffer round rod and the rotating block.

[0012] Optionally, it further includes an L-shaped plate, a camera, a tension sensor and a buckle. An L-shaped plate is provided on the left side at the top of the cross beam. A camera is connected to the top of the L-shaped plate. A tension sensor is installed on the lower side at the front end of the cross beam. A buckle is connected to the left side of the tension sensor. The buckle is buckled on the left fixing frame, and the right side of the tension sensor is connected to the right fixing frame.

[0013] Optionally, it further includes a collection box, a pull handle, and rubber pads. A collection box is provided at the front side of the top end of the base. A pull handle is provided at the front end of the collection box. Rubber pads are provided on the outer side of the rotating rod and at one end where the two clamping plates are close to each other.

[0014] The present invention has the following advantages: 1. By winding the non-woven fabric around the rotating rod and using the clamping plates to clamp the rotating rod, the traditional clamping method of the non-woven fabric is changed. The clamping plate component does not directly clamp the non-woven fabric, but tests the non-woven fabric by pulling the fixing frame, effectively solving the problem of uneven stress distribution caused by the clamping plate component clamping the non-woven fabric in the traditional equipment.

[0015] 2. With the design of the auxiliary clamping mechanism, the cooperation between the pull plate and the fixed block can effectively clamp the non-woven fabric and prevent the two ends of the non-woven fabric from shrinking towards the middle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of components such as the support column of the present invention.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of components such as the drive motor of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of components such as the cloth winding motor of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of components such as the extrusion block of the present invention.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of components such as the pressing rod of the present invention.

[0022] Figure 7 It is a three-dimensional structural schematic diagram of components such as the clamping plate of the present invention.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of components such as the buffer block of the present invention.

[0024] Figure 9 It is a three-dimensional structural schematic diagram of components such as the connecting handle of the present invention.

[0025] Figure 10 It is a three-dimensional structural schematic diagram of components such as the fixing frame of the invention.

[0026] The markings of each component in the attached drawings are as follows: 1: base, 2: collection box, 201: pull handle, 3: support column, 301: cross beam, 3011: through groove, 4: fixing frame, 5: cloth winding mechanism, 501: cloth winding motor, 502: rotating rod, 503: fixing rod, 5031: arc groove, 504: pull rod, 5041: extrusion block, 505: wedge block, 506: connecting piece, 507: pressing rod, 508: first elastic member, 601: clamping plate, 6011: rubber pad, 602: linear guide rail, 603: connecting seat, 6031: second elastic member, 604: guide rod, 605: pressing plate, 7: driving mechanism, 701: driving motor, 702: screw rod, 703: connecting plate, 704: buffer frame, 7041: connecting handle, 7042: rotating block, 7043: third elastic member, 7044: buffer round rod, 7045: fourth elastic member, 705: buffer block, 8: auxiliary clamping mechanism, 801: pulling plate, 802: fixing block, 803: extrusion rod, 804: fifth elastic member, 9: L-shaped plate, 10: camera, 11: tension sensor, 1101: buckle. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the attached drawings. It is hereby declared that the directional terms such as up, down, left, right, front, rear, inside and outside that appear or will appear in the text of the present invention are only based on the attached drawings of the present invention, and they do not specifically limit the present invention.

[0028] A non-woven fabric tensile property detection device, as Figures 1 - 6As shown in the figure, it includes a base 1, support columns 3, a cross beam 301, a fixing frame 4, a rotating rod 502, a clamping plate 601, a linear guide rail 602, a connecting seat 603, and a guide rod 604. Support columns 3 are symmetrically arranged on the left and right at the top of the base 1. Cross beam 301 is connected to the tops of the two support columns 3. Fixed frames 4 are connected to the left and right sides of the front end of the cross beam 301. The left fixing frame 4 is fixedly connected to the cross beam 301, and the right fixing frame 4 is slidably connected to the cross beam 301. Taking the left fixing frame 4 as the reference end, the right fixing frame 4 realizes the stretching effect on the non-woven fabric through the slidable connection with the cross beam 301. Rotating rods 502 are rotatably connected to the fixing frames 4, and the non-woven fabric can be wound around the rotating rods 502. Guide rods 604 are provided at the inner bottom ends of the fixing frames 4. Connecting seats 603 are slidably connected to both the left and right sides of the guide rods 604. The guide rods 604 provide guidance for the connecting seats 603 to prevent uneven loading during the stretching of the non-woven fabric. Clamping plates 601 are provided at the tops of the connecting seats 603. Linear guide rails 602 are symmetrically arranged at the front and back at the inner bottom ends of the fixing frames 4. The linear guide rails 602 each have two moving parts. The moving parts on the left side of the two linear guide rails 602 are connected to the left connecting seat 603, and the moving parts on the right side of the two linear guide rails 602 are connected to the right connecting seat 603. The linear guide rails 602 can drive the connecting seats 603 and the clamping plates 601 thereon to approach the rotating rod 502, and the clamping plates 601 can clamp the rotating rod 502.

[0029] As Figure 4 and Figure 6 shown in the figure, it further includes a pressing plate 605 and a second elastic member 6031. The connecting seat 603 is divided into two parts: a connecting sleeve and a supporting seat. The connecting sleeve is connected to the moving parts of the linear guide rails 602 on the front and back sides. The supporting seat is used to support the clamping plate 601. The connecting sleeve is slidably connected to the supporting seat. A second elastic member 6031 is connected between the connecting sleeve and the supporting seat. Pressing plates 605 are connected to the front connecting sleeves of the connecting seats 603. The pressing plates 605 are L-shaped rods.

[0030] As Figure 6 and Figure 7As shown in the figure, it further includes an auxiliary clamping mechanism 8. The auxiliary clamping mechanism 8 includes a pull plate 801, a fixed block 802, a pressing rod 803, and a fifth elastic member 804. Fixed blocks 802 are symmetrically arranged in the front and rear on the clamping plates 601 of the two fixed frames 4 close to each other on the left and right. A pull plate 801 is slidably connected to the two fixed blocks 802. Pulling the pull plate 801 downward will cause the fifth elastic member 804 to change from its initial state to a compressed state. The top end of the pull plate 801 can contact the fixed block 802. When the non-woven fabric is placed on the top end of the fixed block 802, the cooperation between the pull plate 801 and the fixed block 802 can clamp the front and rear sides of the non-woven fabric. Before the test, the cooperation between the pull plate 801 and the fixed block 802 clamps the non-woven fabric, which can prevent the two ends of the non-woven fabric from shrinking towards the middle. Pressing rods 803 are symmetrically arranged in the front and rear on the connecting seats 603 of the two fixed frames 4 close to each other. On one side of the pressing rod 803 close to the pull plate 801, there is an inclined surface, and this inclined surface abuts against the pull plate 801.

[0031] As Figures 1 - 5 shown in the figure, the cloth winding mechanism 5 includes a cloth winding motor 501, a fixed rod 503, a pull rod 504, an extrusion block 5041, a wedge block 505, a connecting member 506, a pressing rod 507, and a first elastic member 508. Cloth winding motors 501 are provided at the rear ends of the fixed frames 4. The rotating rod 502 is a hollow circular tube formed by splicing multiple arc-shaped plates. Fixed rods 503 are rotatably connected to the fixed frames 4. The fixed rods 503 are located inside the rotating rod 502, and the fixed rods 503 are connected to the output shafts of the cloth winding motors 501. Connecting members 506 are connected between the arc-shaped plates and the fixed rods 503. The cloth winding motor 501 can drive the fixed rods 503 to rotate, and then cause the rotating rod 502 to rotate. When one end of the non-woven fabric is fixed to the rotating rod 502, the rotating rotating rod 502 can wind up the non-woven fabric. Pull rods 504 are slidably connected inside the fixed rods 503. Extrusion blocks 5041 are connected to the rear ends of the pull rods 504. Wedge blocks 505 are provided on one side of the arc-shaped plates close to the extrusion blocks 5041. Arc-shaped grooves 5031 for the extrusion blocks 5041 to slide are circumferentially opened in the middle of the fixed rods 503. The extrusion blocks 5041 abut against the wedge blocks 505. If the pull rods 504 are pulled forward, the extrusion blocks 5041 will squeeze the wedge blocks 505, causing the arc-shaped plates of the rotating rod 502 to expand radially. Pressing rods 507 are slidably connected to the left and right sides at the front end of the fixed frames 4. First elastic members 508 are connected between the pressing rods 507 and the fixed frames 4. The pressing rods 507 and the pressing plates 605 are in the same vertical plane.

[0032] As Figure 3 and Figure 8As shown in the figure, it further includes a driving mechanism 7. The driving mechanism 7 includes a driving motor 701, a screw rod 702, and a connecting plate 703. A driving motor 701 is provided on the left side of the rear end of the cross beam 301. A screw rod 702 is rotatably connected to the right side of the rear end of the cross beam 301. The screw rod 702 is connected to the output shaft of the driving motor 701. A connecting plate 703 is threadedly connected to the screw rod 702. The driving motor 701 drives the screw rod 702 to rotate, so that the connecting plate 703 on the screw rod 702 moves to the right. A through groove 3011 is formed on the right side of the cross beam 301. The connecting plate 703 slides in the through groove 3011. The connecting plate 703 is connected to the right fixing frame 4. The connecting plate 703 pulls the right fixing frame 4 to move, thereby performing a tensile test on the non-woven fabric on the fixing frame 4.

[0033] As Figure 8 and Figure 9 As shown in the figure, it further includes a buffer frame 704 and a buffer block 705. The right end of the connecting plate 703 is connected to a buffer frame 704. A plurality of groups of buffer blocks 705 are arranged at intervals at the inner bottom end of the through groove 3011. The buffer frame 704 includes a connecting handle 7041, a rotating block 7042, a third elastic member 7043, a buffer round rod 7044, and a fourth elastic member 7045. The right end of the connecting plate 703 is connected to a connecting handle 7041. A rotating block 7042 is rotatably connected to the connecting handle 7041. A third elastic member 7043 is connected between the rotating block 7042 and the connecting handle 7041. A buffer round rod 7044 is slidably connected to the rotating block 7042. A fourth elastic member 7045 is connected between the buffer round rod 7044 and the rotating block 7042. During the test, if the non-woven fabric suddenly breaks, the connecting plate 703 will tend to move to the right under the action of inertia. Since the buffer frame 704 forms an angle with the horizontal direction, and the bottom end of the buffer frame 704 abuts against the inner bottom end of the through groove 3011, and buffer blocks 705 are arranged in the through groove 3011, the buffer frame 704 can abut against the buffer blocks 705 to delay the tendency of the connecting plate 703 to move to the right. During the process of the buffer frame 704 moving to the right, when the buffer round rod 7044 contacts the buffer block 705, the buffer round rod 7044 will slide into the rotating block 7042, and the fourth elastic member 7045 will change from the initial state to the compressed state. When the buffer round rod 7044 slides on the inclined surface of the buffer block 705, the third elastic member 7043 will change from the initial state to the compressed state. When the buffer round rod 7044 disengages from the buffer block 705, the third elastic member 7043 resets, and the third elastic member 7043 drives the buffer round rod 7044 to reset, so that the buffer round rod 7044 abuts against the inner bottom end of the through groove 3011 again. During the reset process of the buffer round rod 7044, the third elastic member 7043 will also reset.

[0034] As Figure 1 and Figure 10As shown in the figure, it further includes an L-shaped plate 9, a camera 10, a tensile sensor 11 and a buckle 1101. An L-shaped plate 9 is provided on the left side of the top end of the cross beam 301. The top end of the L-shaped plate 9 is connected with a camera 10, and the camera 10 is used to record the deformation process of the non-woven fabric. A tensile sensor 11 is installed on the lower side of the front end of the cross beam 301. The left side of the tensile sensor 11 is connected with a buckle 1101, and the buckle 1101 is buckled on the left fixing bracket 4. The right side of the tensile sensor 11 is connected with the right fixing bracket 4, and the tensile sensor 11 monitors the tensile load received by the non-woven fabric in real time.

[0035] As Figure 1 , Figure 4 and Figure 5 shown in the figure, it further includes a collection box 2, a pull handle 201 and a rubber pad 6011. A collection box 2 is provided on the front side of the top end of the base 1. The collection box 2 is used to collect the non-woven fabric broken during and after the test. A pull handle 201 is provided at the front end of the collection box 2. The design of the pull handle 201 on the collection box 2 is beneficial for people to pull the collection box 2. Rubber pads 6011 are provided on the outer side of the rotating rod 502 and at one end where the two clamping plates 601 are close to each other. The rubber pads 6011 are elastic and can prevent the rotating rod 502 and the two clamping plates 601 from damaging the non-woven fabric.

[0036] Fix the two ends of the non-woven fabric on the rotating rods 502 on the left and right sides respectively. Start the cloth winding motor 501. The cloth winding motor 501 drives the rotating rods 502 to rotate (the rotating directions of the cloth winding motors 501 on the left and right sides are opposite), wind the non-woven fabric around the rotating rods 502, and make the non-woven fabric in a straightened state. The top end of the fixed block 802 is in contact with the non-woven fabric. Then, start the linear guide rail 602. The linear guide rail 602 drives the connecting seat 603 and the clamping plate 601 thereon to approach the rotating rod 502. When the rubber pad 6011 on the clamping plate 601 abuts against the non-woven fabric, the support seat part on the connecting seat 603 will stop moving. At this time, the pressing plate 605 is clamped and presses the pressing rod 507. The linear guide rail 602 drives the connecting sleeve on the connecting seat 603 to continue approaching the rotating rod 502. At this time, the second elastic member 6031 will change from the initial state to the compressed state. The connecting sleeve drives the pressing plate 605 to move, so that the pressing plate 605 squeezes the pressing rod 507. During the process of the pressing plate 605 squeezing the pressing rod 507, the first elastic member 508 will change from the initial state to the compressed state. The two pressing rods 507 on the same fixing bracket 4 respectively squeeze the left and right sides of the pull rod 504, which makes the pull rod 504 move forward a small distance (the moving direction of the pull rod 504 here refers to Figure 1) When the pull rod 504 moves forward, the extrusion block 5041 will slide along the arc-shaped groove 5031 on the fixed rod 503, and the extrusion block 5041 will extrude the wedge-shaped block 505, which will prompt the arc-shaped plate of the rotating rod 502 to expand radially to tighten the non-woven fabric. When the connecting sleeve compresses the second elastic member 6031, the extrusion rod 803 connected to the connecting sleeve also moves together with the connecting sleeve. The extrusion rod 803 extrudes the pull plate 801, so that the pull plate 801 moves downward under the action of the inclined surface of the extrusion rod 803 and cooperates with the fixed block 802 to clamp the non-woven fabric. During the downward movement of the pull plate 801, the fifth elastic member 804 changes from the initial state to the compressed state. At this time, the non-woven fabric is fixed between the left and right fixing frames 4. For the tensile test of the non-woven fabric, turn on the camera 10 and start the driving motor 701. The driving motor 701 drives the screw rod 702 to rotate, so that the connecting plate 703 and the right fixing frame 4 thereon slide along the through groove 3011. This will cause the non-woven fabric to be subjected to a tensile force. The tensile force sensor 11 monitors the magnitude of the tensile force received by the non-woven fabric in real time. The camera 10 will record the whole process of the non-woven fabric being stressed. When the non-woven fabric breaks, analyze the data obtained from the tensile force sensor 11 and the images recorded by the camera 10 to obtain the tensile test results of the non-woven fabric accordingly.

[0037] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the said claims.

Claims

1. A non-woven fabric tensile property detection device, comprising a base (1), characterized in that: Further included are support columns (3), cross beams (301), fixing frames (4), rotating rods (502), clamping plates (601), linear guide rails (602), connecting seats (603) and guide rods (604). Support columns (3) are symmetrically arranged on the left and right at the top end of the base (1). Cross beams (301) are connected to the top ends of the two support columns (3). Fixing frames (4) are connected to the left and right sides of the front end of the cross beam (301). The fixing frame (4) on the left is fixedly connected to the cross beam (301), and the fixing frame (4) on the right is slidably connected to the cross beam (301). Rotating rods (502) are rotatably connected to the fixing frames (4). Guide rods (604) are arranged at the inner bottom ends of the fixing frames (4). Connecting seats (603) are slidably connected to both the left and right sides of the guide rods (604). Clamping plates (601) are arranged at the top ends of the connecting seats (603). Linear guide rails (602) are symmetrically arranged at the front and back of the inner bottom ends of the fixing frames (4). The linear guide rails (602) each have two moving parts. The moving parts on the left side of the two linear guide rails (602) are connected to the left connecting seat (603), and the moving parts on the right side of the two linear guide rails (602) are connected to the right connecting seat (603).

2. A non-woven fabric tensile property detection device according to claim 1, characterized in that: Further included are pressing plates (605) and second elastic members (6031). The connecting seat (603) is divided into two parts: a connecting sleeve and a supporting seat. The connecting sleeve is connected to the moving parts of the linear guide rails (602) on the front and back sides. The supporting seat is used to support the clamping plate (601). The connecting sleeve is slidably connected to the supporting seat. A second elastic member (6031) is connected between the connecting sleeve and the supporting seat. Pressing plates (605) are connected to the connecting sleeves at the front ends of the connecting seats (603).

3. A non-woven fabric tensile property detection device according to claim 2, characterized in that: Further included is an auxiliary clamping mechanism (8). The auxiliary clamping mechanism (8) includes a pulling plate (801), fixing blocks (802), extrusion rods (803) and fifth elastic members (804). Fixing blocks (802) are symmetrically arranged at the front and back on the clamping plates (601) of the left and right fixing frames (4) that are close to each other. A pulling plate (801) is slidably connected to the two fixing blocks (802). Extrusion rods (803) are symmetrically arranged at the front and back on the connecting seats (603) of the left and right fixing frames (4) that are close to each other. Slopes are arranged on one sides of the extrusion rods (803) close to the pulling plate (801), and the slopes abut against the pulling plate (801).

4. A nonwoven fabric tensile property detection device according to claim 3, characterized in that: The cloth winding mechanism (5) includes a cloth winding motor (501), a fixed rod (503), a pull rod (504), a pressing block (5041), a wedge block (505), a connecting member (506), a pressing rod (507) and a first elastic member (508). Cloth winding motors (501) are provided at the rear ends of the fixed frames (4). The rotating rod (502) is a hollow circular tube formed by splicing multiple arc-shaped plates. Fixed rods (503) are rotatably connected to the fixed frames (4). The fixed rods (503) are located inside the rotating rod (502). The fixed rods (503) are connected to the output shafts of the cloth winding motors (501). Connecting members (506) are connected between the arc-shaped plates and the fixed rods (503). Pull rods (504) are slidably connected inside the fixed rods (503). Pressing blocks (5041) are connected to the rear ends of the pull rods (504). Wedge blocks (505) are provided on one side of the arc-shaped plates close to the pressing blocks (5041). Arc-shaped grooves (5031) for the pressing blocks (5041) to slide are circumferentially formed in the middle of the fixed rods (503). The pressing blocks (5041) abut against the wedge blocks (505). Pressing rods (507) are slidably connected to the left and right sides of the front ends of the fixed frames (4). First elastic members (508) are connected between the pressing rods (507) and the fixed frames (4). The pressing rods (507) and the pressing plates (605) are in the same vertical plane.

5. A nonwoven fabric tensile property testing device according to claim 4, characterized in that: It further includes a driving mechanism (7). The driving mechanism (7) includes a driving motor (701), a screw rod (702) and a connecting plate (703). The driving motor (701) is provided on the left side of the rear end of the cross beam (301). The screw rod (702) is rotatably connected to the right side of the rear end of the cross beam (301). The screw rod (702) is connected to the output shaft of the driving motor (701). A connecting plate (703) is threadedly connected to the screw rod (702). A through groove (3011) is formed on the right side of the cross beam (301). The connecting plate (703) slides in the through groove (3011). The connecting plate (703) is connected to the right fixed frame (4).

6. A nonwoven fabric tensile property detection device according to claim 5, characterized in that: It further includes a buffer frame (704) and buffer blocks (705). A buffer frame (704) is connected to the right end of the connecting plate (703). Multiple groups of buffer blocks (705) are arranged at intervals at the inner bottom end of the through groove (3011).

7. A nonwoven fabric tensile property detection device according to claim 6, characterized in that: The buffer frame (704) includes a connecting handle (7041), a rotating block (7042), a third elastic member (7043), a buffer round rod (7044) and a fourth elastic member (7045). The connecting handle (7041) is connected to the right end of the connecting plate (703). The rotating block (7042) is rotatably connected to the connecting handle (7041). A third elastic member (7043) is connected between the rotating block (7042) and the connecting handle (7041). The buffer round rod (7044) is slidably connected to the rotating block (7042). A fourth elastic member (7045) is connected between the buffer round rod (7044) and the rotating block (7042).

8. A non-woven fabric tensile property detection device according to claim 7, characterized in that: It further includes L-shaped plate (9), camera (10), tension sensor (11) and buckle (1101). On the left side of the top end of the cross beam (301), there is an L-shaped plate (9). The top end of the L-shaped plate (9) is connected to a camera (10). On the lower side of the front end of the cross beam (301), a tension sensor (11) is installed. On the left side of the tension sensor (11), there is a buckle (1101). The buckle (1101) is buckled on the left fixing frame (4). The right side of the tension sensor (11) is connected to the right fixing frame (4).

9. A non-woven fabric tensile property testing device according to claim 8, characterized in that: It further includes a collection box (2), a pull handle (201) and a rubber pad (6011). On the front side of the top end of the base (1), there is a collection box (2). At the front end of the collection box (2), there is a pull handle (201). Rubber pads (6011) are provided on the outer side of the rotating rod (502) and at one end where the two clamping plates (601) are close to each other.

Images