High-strength non-woven fabric tensile property testing device

Abstract

The invention relates to the technical field of tensile testing, and discloses a high-strength non-woven fabric tensile property testing device which comprises a friction type winding mechanism and an adjustable driven mechanism, the hollow rotating column can rotate along with a rotor of the driving motor, the upper limiting disc is located on the axis of the hollow rotating column and can drive the conical friction body to move, the spiral spring generates upward elastic acting force on the upper limiting disc, and the threaded sleeve can change the elastic strength of the spiral spring. According to the tensile property testing device for the high-strength non-woven fabric, a rolling type tensile test is carried out on the non-woven fabric, in the testing process, the friction resistance needing to be overcome by the driving motor is rolling friction, and the characteristic of small friction coefficient is achieved, so that the error of a tensile result caused by the friction resistance is reduced, and meanwhile, the tensile property of the non-woven fabric is improved. The rotor of the driving motor in the device can rotate all the time under the condition of not exceeding the rated torque resistance of the rotor, so that continuous and stable tension output is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of tensile testing, and particularly to a device for testing the tensile properties of high-strength non-woven fabrics. Background Art

[0002] Non-woven fabric is a non-woven fabric made by combining different types of fiber materials; it usually uses chemical bonding, thermal bonding or mechanical methods to bond the fibers together. Because of its softness, strength, hygroscopicity, waterproofness and other characteristics, it is widely used in the fields of medical and health, household products and industrial uses, etc. In the process of producing composite fiber non-woven fabrics, in order to evaluate the performance and service life of the materials under actual use conditions, it is necessary to conduct sampling tensile property tests on the composite fiber non-woven fabrics to ensure that the products meet the set performance standards and quality requirements, and to ensure the consistency and reliability of the products.

[0003] For example, the Chinese patent with the publication number "CN119534124A" discloses "a device for testing the tensile properties of composite fiber non-woven fabrics". Its main structure includes a base. A U-shaped bracket is fixedly installed on the upper end surface of the base, and a limiting slideway is located directly below the horizontal section of the U-shaped bracket. A tensile mechanism for stretching the composite fiber non-woven fabric back and forth is arranged on the limiting slideway. When this device for testing the tensile properties of composite fiber non-woven fabrics needs to test the tensile properties of a composite fiber non-woven fabric sample, first place one end of the composite fiber non-woven fabric on the upper end surface of the first arc-shaped plate, and continue to clamp and fix the two ends of the composite fiber non-woven fabric through the cooperation of the fixing part and the friction part. Subsequently, start the first motor to horizontally pull the composite fiber non-woven fabric through the cooperation of the driving part and the executing part to test its tensile properties in the horizontal state.

[0004] However, in the actual tensile testing process, the torsional resistance required for the first motor to rotate includes the frictional resistance formed by the sum of the gravity of various components installed on the surfaces of the driving part and the executing part and the tensile resistance formed on the non-woven fabric. And the above frictional resistance is the resistance formed by static friction, which will undoubtedly cause a large error in the test results. In addition, the rotor inside the motor must be in a rotating state during the movement process. Therefore, the support seat will be in a horizontal moving state. When starting to stretch the non-woven fabric, the continuous rotation of the motor will cause the non-woven fabric to be directly torn and cannot provide a stable tensile force to the non-woven fabric. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a high-strength non-woven fabric tensile performance testing device for performing a roll-up tensile test on the non-woven fabric. During the test, the friction resistance that the driving motor needs to overcome is rolling friction, which has the characteristic of a small friction coefficient, thereby reducing the error caused by friction resistance to the tensile result. At the same time, the rotor of the driving motor in the device can continue to rotate without exceeding its own rated torque resistance, thereby providing continuous and stable tension output, solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-strength non-woven fabric tensile performance testing device, comprising a vertical fixed plate with a fixed mounting plate on one side and a horizontal mounting plate arranged on the other side of the vertical fixed plate, a driving motor fixedly mounted on the vertical surface of one of the horizontal mounting plates through a No. 1 fixed base sleeve, and a No. 1 connecting plate fixedly mounted on the rotor end of the driving motor, and also comprising a friction-type winding mechanism, the interior of which is provided with a hollow winding roller rotatably mounted on the vertical surfaces of the other two horizontal mounting plates and capable of winding the non-woven fabric, and a conical friction body located inside the hollow winding roller and capable of driving the hollow winding roller to rotate under the action of friction force; and an adjustable driven mechanism, the interior of which is provided with a hollow rotating column capable of rotating with the rotor of the driving motor, an upper limit disk located on the axis of the hollow rotating column and capable of driving the conical friction body to move, a coil spring that generates an upward elastic force on the upper limit disk, and a threaded sleeve that can change the elastic strength of the coil spring.

[0007] Preferably, the friction-type winding mechanism includes a No. 1 rotating shaft, a longitudinal cloth-clamping groove is provided on the circumferential side of the hollow winding roller, a No. 1 longitudinal component movable cavity is provided at the center of the hollow winding roller, and the hollow winding roller forms a conical friction cavity by an inward convex manner at the longitudinal center of the No. 1 longitudinal component movable cavity, and the top of the No. 1 longitudinal component movable cavity is provided with a No. 1 shaft body through-hole connecting to the space above it, and a No. 2 connecting disk is fixedly installed at the bottom end of the hollow winding roller, and the shaft body of the hollow winding roller near its own bottom and top ends is installed in the sleeve hole of the No. 2 fixed base sleeve through a bearing, and the No. 2 fixed base sleeve is fixedly connected to the vertical surface of the horizontal mounting plate, and a No. 3 connecting disk is fixedly installed on the top of the No. 1 rotating shaft, and the shaft body of the No. 1 rotating shaft passes through the No. 1 shaft body through-hole and the bottom end is fixedly installed with a conical friction body that can be inserted into the conical friction cavity.

[0008] Preferably, the diameter of the top of the conical friction cavity is smaller than the diameter of the bottom thereof, and the structural shape of the conical friction body is consistent with the structural shape of the conical friction cavity, forming a mutually conflicting conical friction surface between the two.

[0009] Preferably, the depth and width of the fabric insertion groove are sufficient to allow one end of the non-woven fabric to be detected to be inserted therein.

[0010] Preferably, the adjustable driven mechanism includes a collar, the top of the hollow rotating column is provided with a No. 4 connecting disk fixedly connected to the No. 1 connecting disk, the bottom end of the hollow rotating column is provided with an externally threaded rod with an integral structure therewith, the interior of the hollow rotating column is provided with a No. 2 longitudinal component movable cavity, two symmetrical longitudinal sliding grooves connected to the No. 2 longitudinal component movable cavity are provided at the circumferential wall thickness of the hollow rotating column, a No. 2 shaft body through-hole is provided at the center of the externally threaded rod, and the hollow rotating column is provided with an upper limit disk and a lower limit disk that can move axially along the No. 2 longitudinal component movable cavity inside the No. 2 longitudinal component movable cavity, and a fixedly installed between the upper limit disk and the lower limit disk. The helical spring is in a compressed state, and the center of the lower limit plate is provided with a No. 3 shaft body through-hole with both ends being open. The side of the lower limit plate is fixedly installed with two L-shaped sliding links that pass through the longitudinal groove and can move longitudinally along the longitudinal groove. The bottom end of the L-shaped sliding link is fixedly installed on the upper surface of the collar, and a threaded sleeve is installed inside the ring hole of the collar through a bearing. The center of the threaded sleeve is provided with an internal threaded hole installed on the rod body of the external threaded rod through a threaded structure. The bottom of the upper limit plate is fixedly installed with a No. 2 rotating shaft that passes through the No. 3 shaft body through-hole and the No. 2 shaft body through-hole in sequence, and the bottom end of the No. 2 rotating shaft is provided with a No. 4 connecting disc fixedly connected to the No. 3 connecting disc.

[0011] Preferably, the thread structure includes an internal thread structure provided on the inner wall of the threaded sleeve and an external thread structure provided on the rod body of the external thread rod, and the internal thread structure matches the external thread structure.

[0012] Preferably, the structural shape of the cross section of the No. 3 shaft body through-hole and the No. 2 shaft body through-hole is consistent with the structural shape of the cross section of the No. 2 rotating shaft, and both are polygonal structures, and the structural dimensions of the cross section of the No. 3 shaft body through-hole and the No. 2 shaft body through-hole match the structural dimensions of the cross section of the No. 2 rotating shaft.

[0013] Preferably, it also includes a magnetic pole reaction mechanism, which is internally provided with an upper permanent magnet fixedly mounted on the bottom end of the No. 2 connecting disk and capable of rotating with the No. 2 connecting disk, and a lower permanent magnet fixed directly below the upper permanent magnet and generating an upward repulsive force on the upper permanent magnet.

[0014] Preferably, the magnetic pole reaction mechanism includes a lower embedded disk and an upper embedded disk, and the bottom end of the lower embedded disk and the top end of the upper embedded disk are respectively provided with a No. 5 connecting disk and a No. 6 connecting disk, and the No. 6 connecting disk is fixedly connected to the bottom end of the No. 2 connecting disk. The lower embedded disk and the upper embedded disk are respectively provided with a lower embedded groove and an upper embedded groove with a concave structure at the opposite ends, and the lower embedded groove and the upper embedded groove are respectively fixedly installed with a lower permanent magnet and an upper permanent magnet in a protruding state.

[0015] Preferably, the magnetic poles of the lower permanent magnet and the upper permanent magnet at opposite ends are opposite, and when the fifth connecting disk is fixedly installed, the repulsive force between the lower permanent magnet and the upper permanent magnet is consistent with the gravity of the hollow winding roller.

[0016] Compared with the prior art, the present invention provides a high-strength non-woven fabric tensile performance testing device, which has the following beneficial effects: The non-woven fabric is subjected to a roll-up tensile test. During the test, the friction resistance that the drive motor needs to overcome is rolling friction, which has the characteristic of a small friction coefficient, thereby reducing the error caused by friction resistance to the tensile result. At the same time, the rotor of the drive motor in the device can continue to rotate without exceeding its own rated torque resistance, thereby providing continuous and stable tensile output. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view of the present invention.

[0018] Figure 2 It is a three-dimensional cross-sectional view of the present invention.

[0019] Figure 3 It is a three-dimensional diagram of the friction winding mechanism of the present invention.

[0020] Figure 4 It is a three-dimensional cross-sectional view of the friction-type winding mechanism of the present invention.

[0021] Figure 5 It is a three-dimensional diagram of the adjustable driven mechanism of the present invention.

[0022] Figure 6 It is a three-dimensional cross-sectional view of the adjustable follower mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional diagram of the magnetic pole reaction mechanism in the present invention.

[0024] Figure 8 It is a three-dimensional cross-sectional view of the magnetic pole reaction mechanism of the present invention.

[0025] Among them: 1. Vertical fixed plate; 2. Fixed mounting plate; 3. Horizontal mounting plate; 4. Fixed base sleeve No. 1; 5. Drive motor; 6. Connecting plate No. 1; 7. Friction-type winding mechanism; 71. Hollow winding roller; 72. Fabric insertion slot; 73. Active cavity of longitudinal component No. 1; 74. Conical friction cavity; 75. Through hole of shaft No. 1; 76. Connecting plate No. 2; 77. Rotating shaft No. 1; 78. Connecting plate No. 3; 79. Conical friction body; 710. Fixed base sleeve No. 2; 8. Adjustable driven mechanism; 81. Hollow rotating column; 82. Connecting plate No. 4; 83. Externally threaded rod; 84 , movable cavity of longitudinal component No. 2; 85, longitudinal slide groove; 86, through-hole of shaft No. 2; 87, upper limit plate; 88, lower limit plate; 89, through-hole of shaft No. 3; 810, coil spring; 811, L-shaped sliding link; 812, collar; 813, threaded sleeve; 814, internal threaded hole; 815, rotating shaft No. 2; 816, connecting disk No. 4; 9, magnetic pole reaction mechanism; 91, lower embedded disk; 92, lower embedded groove; 93, connecting disk No. 5; 94, upper embedded disk; 95, upper embedded groove; 96, connecting disk No. 6; 97, lower permanent magnet; 98, upper permanent magnet. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 and Figure 2 A high-strength non-woven fabric tensile performance testing device comprises a vertical fixed plate 1 with a fixed mounting plate 2 on one side and a horizontal mounting plate 3 arranged on the other side of the vertical fixed plate 1, a driving motor 5 fixedly mounted on the vertical surface of one of the horizontal mounting plates 3 through a No. 1 fixed base sleeve 4, and a No. 1 connecting plate 6 fixedly mounted on the rotor end of the driving motor 5. First, the fixed mounting plate 2 is installed in the working area, and then one end of the non-woven fabric is fixed by a clamping device, and the other end of the non-woven fabric is inserted into the inside of the fabric card slot 72, and the hollow winding roller 71 is rotated to make the non-woven fabric in a pre-winding state. The pre-winding requires that the non-woven fabric that has not been wound at this time is in a straight state, and the preparation work before the test is completed.

[0028] To implement the friction-winding tensile test function, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, it is necessary to set up a friction-type winding mechanism 7, inside which a hollow winding roller 71 is rotatably mounted on the vertical surfaces of the other two horizontal mounting plates 3 and capable of winding the non-woven fabric, and a conical friction body 79 is located inside the hollow winding roller 71 and can drive the hollow winding roller 71 to rotate under the action of friction. The No. 1 rotating shaft 77 drives the conical friction body 79 to rotate, and the conical friction body 79 and the hollow winding roller 71 form an extrusion contact surface at the inner wall of the conical friction cavity 74. There is a corresponding friction force between the two, and this friction force will cause the hollow winding roller 71 to have a tendency to rotate with the conical friction body 79. , thereby causing the hollow winding roller 71 to rotate and continuously winding the non-woven fabric wound on the surface of the hollow winding roller 71. When the friction between the hollow winding roller 71 and the conical friction body 79 cannot drive the non-woven fabric to continue winding, the non-woven fabric that has not been wound is at the rated tensile degree, which means that the tensile state of the non-woven fabric has reached the rated value required for the test. Since the conical friction body 79 can be in a rotating state all the time, the hollow winding roller 71 generates a continuous pulling force on the non-woven fabric, thereby testing the tensile durability of the non-woven fabric, thereby realizing the friction winding tensile test function.

[0029] For the specific structure of the friction type winding mechanism 7, please refer to Figure 3 and Figure 4 , including a No. 1 rotating shaft 77, a longitudinal cloth-entering groove 72 is provided on the circumferential side of the hollow winding roller 71, a No. 1 longitudinal component movable cavity 73 is provided in the center of the hollow winding roller 71, and the hollow winding roller 71 forms a conical friction cavity 74 by an inward convex manner at the longitudinal center of the No. 1 longitudinal component movable cavity 73, and the top of the No. 1 longitudinal component movable cavity 73 is provided with a No. 1 shaft body through-hole 75 communicating with the space above it, and a No. 2 connecting disk 76 is fixedly installed at the bottom end of the hollow winding roller 71, and the shaft body of the hollow winding roller 71 near its own bottom and top ends is installed in the sleeve hole of the No. 2 fixed base sleeve 710 through bearings. , and the No. 2 fixed base sleeve 710 is fixedly connected to the vertical surface of the horizontal mounting plate 3, the top of the No. 1 rotating shaft 77 is fixedly installed with the No. 3 connecting disk 78, the shaft body of the No. 1 rotating shaft 77 passes through the No. 1 shaft body through-hole 75 and the bottom end is fixedly installed with a conical friction body 79 that can be inserted into the conical friction cavity 74, the diameter of the top of the conical friction cavity 74 is smaller than the diameter of the bottom thereof, and the structural shape of the conical friction body 79 is consistent with the structural shape of the conical friction cavity 74, forming a conical friction surface that conflicts with each other, and the depth and width of the fabric card slot 72 are sufficient to allow one end of the non-woven fabric to be detected to be inserted into it.

[0030] For adjustable tension, see Figure 1 、 Figure 2 、 Figure 5 and Figure 6, it is necessary to set up an adjustable driven mechanism 8, which is internally provided with a hollow rotating column 81 that can rotate with the rotor of the driving motor 5, an upper limit plate 87 located on the axis of the hollow rotating column 81 and capable of driving the conical friction body 79 to move, a coil spring 810 that generates an upward elastic force on the upper limit plate 87, and a threaded sleeve 813 that can change the elastic strength of the coil spring 810. The threaded sleeve 813 is rotated in a directional manner. Due to the threaded structure connection, the threaded sleeve 813 will drive the L-shaped sliding link 811 to move longitudinally, and the L-shaped sliding link 811 will drive the lower limit plate 88 to move longitudinally. At this time, since the conical friction body 79 is stuck in the conical friction cavity 74, the upper limit plate 87 cannot be moved longitudinally, thereby changing the By changing the distance between the lower limit plate 88 and the upper limit plate 87, the elasticity of the coil spring 810 will change, and the elastic force of the coil spring 810 on the upper limit plate 87 will be indirectly converted into the contact surface between the conical friction body 79 and the hollow winding roller 71. The maximum static friction force between the conical friction body 79 and the hollow winding roller 71 is the measured value of the stretching of the non-woven fabric, thereby realizing the adjustable function of the tensile strength. When the rotor drives the hollow rotating column 81 to rotate, due to the structural size and appearance, the hollow rotating column 81 will drive the No. 2 rotating shaft 815 to rotate, and the No. 2 rotating shaft 815 will transmit the rotation to the No. 1 rotating shaft 77, and cause the No. 1 rotating shaft 77 to rotate, so as to realize the transmission of the rotation effect.

[0031] For the specific structure of the adjustable follower mechanism 8, please refer to Figure 5 and Figure 6, including a collar 812, a top of the hollow rotating column 81 is provided with a No. 4 connecting disk 82 fixedly connected to the No. 1 connecting disk 6, a bottom end of the hollow rotating column 81 is provided with an external threaded rod 83 of an integral structure therewith, a No. 2 longitudinal component movable cavity 84 is provided inside the hollow rotating column 81, two symmetrical longitudinal slide grooves 85 are provided at the circumferential wall thickness of the hollow rotating column 81 and are connected to the No. 2 longitudinal component movable cavity 84, a No. 2 shaft through-hole 86 is provided at the center of the external threaded rod 83, and the hollow rotating column 81 is provided with a No. 2 shaft through-hole 86. An upper limit plate 87 and a lower limit plate 88 are placed inside the movable cavity 84 of the No. 2 longitudinal component, which can move axially along the movable cavity 84 of the No. 2 longitudinal component. A coil spring 810 in a compressed state is fixedly installed between the upper limit plate 87 and the lower limit plate 88. A No. 3 shaft through-hole 89 with two ends in an open state is provided in the center of the lower limit plate 88. Two L-shaped sliding links 811 that pass through the longitudinal groove 85 and can move longitudinally along the longitudinal groove 85 are fixedly installed on the side of the lower limit plate 88. The bottom end of the movable connecting rod 811 is fixedly mounted on the upper surface of the collar 812. A threaded sleeve 813 is mounted inside the annular hole of the collar 812 through a bearing. The center of the threaded sleeve 813 is provided with an internal threaded hole 814 which is mounted on the rod body of the external threaded rod 83 through a threaded structure. The bottom of the upper limit plate 87 is fixedly mounted with a second rotating shaft 815 which passes through the third shaft body through-hole 89 and the second shaft body through-hole 86 in sequence. The bottom end of the second rotating shaft 815 is provided with a fourth connecting plate 81 which is fixedly connected to the third connecting plate 78. 6. The threaded structure includes an internal threaded structure arranged on the inner wall of the threaded sleeve 813 and an external threaded structure arranged on the rod body of the external threaded rod 83, and the internal threaded structure matches the external threaded structure. The structural shape of the cross section of the No. 3 shaft through-hole 89 and the No. 2 shaft through-hole 86 is consistent with the structural shape of the cross section of the No. 2 rotating shaft 815, and both are polygonal structures. The structural dimensions of the cross section of the No. 3 shaft through-hole 89 and the No. 2 shaft through-hole 86 match the structural dimensions of the cross section of the No. 2 rotating shaft 815.

[0032] To further reduce the frictional drag on tensile testing, refer to Figure 1 、 Figure 2 、 Figure 7 and Figure 8 , it is necessary to set up a magnetic pole reaction mechanism 9, which is internally provided with an upper permanent magnet 98 fixedly mounted at the bottom end of the No. 2 connecting disk 76 and capable of rotating with the No. 2 connecting disk 76, and a lower permanent magnet 97 fixed directly below the upper permanent magnet 98 and generating an upward repulsive force on the upper permanent magnet 98. Since the repulsive force between the lower permanent magnet 97 and the upper permanent magnet 98 is consistent with the gravity of the hollow winding roller 71, and the friction force formed by the repulsive force between the magnetic poles is air resistance, the torque resistance formed by the air resistance can be ignored, which will reduce the torque resistance that the hollow winding roller 71 needs to overcome when rotating, thereby reducing the error of the friction resistance on the tensile test work.

[0033] For the specific structure of the magnetic pole reaction mechanism 9, please refer to Figure 7 and Figure 8 , including a lower embedded disk 91 and an upper embedded disk 94, the bottom end of the lower embedded disk 91 and the top of the upper embedded disk 94 are respectively provided with a No. 5 connecting disk 93 and a No. 6 connecting disk 96, the No. 6 connecting disk 96 is fixedly connected to the bottom end of the No. 2 connecting disk 76, the lower embedded disk 91 and the upper embedded disk 94 are respectively provided with a lower embedded groove 92 and an upper embedded groove 95 of an inward-concave structure at the opposite ends, and a lower permanent magnet 97 and an upper permanent magnet 98 in a raised state are fixedly installed in the lower embedded groove 92 and the upper embedded groove 95 respectively, the lower permanent magnet 97 and the upper permanent magnet 98 have opposite magnetic poles at the opposite ends, and when the No. 5 connecting disk 93 is fixedly installed, the repulsive force between the lower permanent magnet 97 and the upper permanent magnet 98 is consistent with the gravity of the hollow winding roller 71.

[0034] When in use, the fixed mounting plate 2 is installed in the working area, and one end of the non-woven fabric is fixed by the clamping device, and the other end of the non-woven fabric is inserted into the inside of the fabric card slot 72, and the hollow winding roller 71 is rotated to make the non-woven fabric in a pre-winding state. The pre-winding requires that the non-woven fabric that has not been wound up at this time is in a straight state, and the driving motor 5 is started. When the rotor drives the hollow rotating column 81 to rotate, due to the structural size and shape, the hollow rotating column 81 will drive the second rotating shaft 815 to rotate, and the second rotating shaft 815 will transmit the rotation to the number one rotating shaft 77, and make the number one rotating shaft 77 rotate, and the number one rotating shaft 77 will drive the conical friction body 79 to rotate, and the conical friction body 79 and the hollow winding roller 71 are located in the conical An extrusion contact surface is formed on the inner wall of the conical friction cavity 74, and there is a corresponding friction force between the two. This friction force will cause the hollow winding roller 71 to have a tendency to rotate with the conical friction body 79, thereby causing the hollow winding roller 71 to rotate and continuously winding the non-woven fabric wound on the surface of the hollow winding roller 71. When the friction force between the hollow winding roller 71 and the conical friction body 79 cannot drive the non-woven fabric to continue winding, at this time, the non-woven fabric that has not been wound is at the rated tensile degree, which means that the tensile state of the non-woven fabric at this time reaches the rated value required for the test. Since the conical friction body 79 can be in a rotating state all the time, the hollow winding roller 71 generates continuous pulling force on the non-woven fabric, thereby testing the tensile durability of the non-woven fabric.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength non-woven fabric tensile performance testing device, comprising a vertical fixing plate (1) provided with a fixed mounting plate (2) on one side, a horizontal mounting plate (3) provided on the other side of the vertical fixing plate (1), a driving motor (5) fixedly mounted on the vertical surface of one of the horizontal mounting plates (3) through a No. 1 fixing base sleeve (4), and a No. 1 connecting plate (6) fixedly mounted on the rotor end of the driving motor (5), characterized in that: Also includes, A friction-type winding mechanism (7) is provided inside thereof with a hollow winding roller (71) rotatably mounted on the vertical surfaces of the other two horizontal mounting plates (3) and capable of winding the non-woven fabric, and a conical friction body (79) located inside the hollow winding roller (71) and capable of driving the hollow winding roller (71) to rotate under the action of friction force; and an adjustable driven mechanism (8), which is internally provided with a hollow rotating column (81) capable of rotating with the rotor of the driving motor (5), an upper limit plate (87) located on the axis of the hollow rotating column (81) and capable of driving the conical friction body (79) to move, a coil spring (810) generating an upward elastic force on the upper limit plate (87), and a threaded sleeve (813) capable of changing the elastic strength of the coil spring (810).

2. A high-strength non-woven fabric tensile properties testing device according to claim 1, characterized in that: The friction-type winding mechanism (7) includes a No. 1 rotating shaft (77), a longitudinal cloth-entering groove (72) is provided on the circumferential side of the hollow winding roller (71), a No. 1 longitudinal component movable cavity (73) is provided at the center of the hollow winding roller (71), a conical friction cavity (74) is formed by an inward convex manner at the longitudinal center of the No. 1 longitudinal component movable cavity (73), a No. 1 shaft body through-hole (75) connected to the space above the No. 1 longitudinal component movable cavity (73) is provided at the top of the No. 1 longitudinal component movable cavity (73), and the hollow winding roller (71) is provided with a No. 1 shaft body through-hole (75) connected to the space above the No. 1 longitudinal component movable cavity (73). 1) is fixedly mounted with a No. 2 connecting disc (76) at the bottom end thereof, the hollow winding roller (71) is mounted in the sleeve hole of the No. 2 fixed base sleeve (710) through a bearing at the shaft body near its own bottom end and top end, and the No. 2 fixed base sleeve (710) is fixedly connected to the vertical surface of the horizontal mounting plate (3), the top end of the No. 1 rotating shaft (77) is fixedly mounted with a No. 3 connecting disc (78), the shaft body of the No. 1 rotating shaft (77) passes through the No. 1 shaft body through-hole (75) and the bottom end is fixedly mounted with a conical friction body (79) that can be inserted into the conical friction cavity (74).

3. The high-strength non-woven fabric tensile properties testing device according to claim 2, characterized in that: The diameter of the top of the conical friction cavity (74) is smaller than the diameter of the bottom thereof, and the structural shape of the conical friction body (79) is consistent with the structural shape of the conical friction cavity (74), forming a mutually conflicting conical friction surface between the two.

4. The high-strength non-woven fabric tensile properties testing device according to claim 3, characterized in that: The depth and width of the fabric insertion groove (72) are sufficient to allow one end of the non-woven fabric to be detected to be inserted into the groove.

5. The high-strength non-woven fabric tensile properties testing device according to claim 4, characterized in that: The adjustable driven mechanism (8) includes a collar (812), a top end of the hollow rotating column (81) is provided with a No. 4 connecting disk (82) fixedly connected to the No. 1 connecting disk (6), a bottom end of the hollow rotating column (81) is provided with an external threaded rod (83) with an integral structure therewith, a No. 2 longitudinal component movable cavity (84) is provided inside the hollow rotating column (81), two symmetrical longitudinal sliding grooves (85) connected to the No. 2 longitudinal component movable cavity (84) are provided at the circumferential wall thickness of the hollow rotating column (81), a No. 2 shaft body through hole (86) is provided at the center of the external threaded rod (83), and an upper limit disk (87) and a lower limit disk (88) capable of axially moving along the No. 2 longitudinal component movable cavity (84) are arranged inside the No. 2 longitudinal component movable cavity (84) of the hollow rotating column (81), and a screw in a compressed state is fixedly installed between the upper limit disk (87) and the lower limit disk (88). A coil spring (810) is provided at the center of the lower limit plate (88) with a third shaft body through-hole (89) with both ends being open. Two L-shaped sliding links (811) are fixedly installed on the side of the lower limit plate (88) and pass through the longitudinal slots (85) and can move longitudinally along the longitudinal slots (85). The bottom end of the L-shaped sliding link (811) is fixedly installed on the upper surface of the collar (812). A threaded sleeve (813) is installed inside the annular hole of the collar (812) through a bearing. The center of the threaded sleeve (813) is provided with an internal threaded hole (814) installed on the rod body of the external threaded rod (83) through a threaded structure. The bottom of the upper limit plate (87) is fixedly installed with a second rotating shaft (815) that passes through the third shaft body through-hole (89) and the second shaft body through-hole (86) in sequence. The bottom end of the second rotating shaft (815) is provided with a fourth connecting disc (816) fixedly connected to the third connecting disc (78).

6. The high-strength non-woven fabric tensile properties testing device according to claim 5, characterized in that: The thread structure comprises an internal thread structure provided on the inner circumferential wall of the threaded sleeve (813) and an external thread structure provided on the rod body of the external thread rod (83), and the internal thread structure matches the external thread structure.

7. The high-strength non-woven fabric tensile properties testing device according to claim 6, characterized in that: The structural shape of the cross section of the No. 3 shaft body through hole (89) and the No. 2 shaft body through hole (86) is consistent with the structural shape of the cross section of the No. 2 rotating shaft (815), and both are polygonal structures, and the structural dimensions of the cross section of the No. 3 shaft body through hole (89) and the No. 2 shaft body through hole (86) match the structural dimensions of the cross section of the No. 2 rotating shaft (815).

8. The high-strength non-woven fabric tensile property testing device according to claim 7, characterized in that: It also includes a magnetic pole reaction mechanism (9), which is internally provided with an upper permanent magnet (98) fixedly mounted on the bottom end of the second connecting disk (76) and capable of rotating with the second connecting disk (76), and a lower permanent magnet (97) fixed directly below the upper permanent magnet (98) and generating an upward repulsive force on the upper permanent magnet (98).

9. The high-strength non-woven fabric tensile properties testing device according to claim 8, characterized in that: The magnetic pole reaction mechanism (9) comprises a lower embedded disk (91) and an upper embedded disk (94), wherein a fifth connecting disk (93) and a sixth connecting disk (96) are respectively provided at the bottom end of the lower embedded disk (91) and the top end of the upper embedded disk (94), wherein the sixth connecting disk (96) is fixedly connected to the bottom end of the second connecting disk (76), and the lower embedded disk (91) and the upper embedded disk (94) are respectively provided with a lower embedded groove (92) and an upper embedded groove (95) of an inwardly concave structure at opposite ends, wherein a lower permanent magnet (97) and an upper permanent magnet (98) in a protruding state are respectively fixedly installed in the lower embedded groove (92) and the upper embedded groove (95).

10. The high-strength non-woven fabric tensile property testing device according to claim 9, characterized in that: The magnetic poles of the lower permanent magnet (97) and the upper permanent magnet (98) at opposite ends are opposite, and when the fifth connecting disk (93) is fixedly installed, the repulsive force between the lower permanent magnet (97) and the upper permanent magnet (98) is consistent with the gravity of the hollow winding roller (71).

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