Instrument for accurately testing elasticity of elastic fiber wrap yarn

Abstract

The invention discloses an elastic fiber wrap yarn elasticity accurate testing instrument, and relates to the technical field of elasticity testing, the elastic fiber wrap yarn elasticity accurate testing instrument comprises a testing assembly, the testing assembly is used for clamping and pulling the edge of an elastic fiber wrap yarn along the circumferential direction; according to the accurate elasticity testing instrument for the elastic fiber wrap yarn, when the elasticity is tested, the edge of the elastic fiber wrap yarn cut into a circle is clamped by the anti-skid clamps, the anti-skid clamps arranged circumferentially can better fit the shape of the yarn, a more stable clamping effect is provided, slippage of the yarn in the stretching process is effectively avoided, and the elasticity of the elastic fiber wrap yarn is accurately tested. After the elastic fiber wrap yarn is stably clamped and the tension meter is started, the stretching device gradually applies tensile force, so that the elastic fiber wrap yarn is stretched, and a tensile force test result can reflect the deformation condition and the mechanical property change of the elastic fiber wrap yarn in the stretching process; and the test result is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of elasticity testing, in particular to an instrument for accurately testing the elasticity of elastic fiber coated yarns. Background Art

[0002] With the continuous development of textile technology, elastic fiber coated yarn is increasingly used in the textile field. The production of elastic fiber coated yarn is completed through a special spinning process. Generally, the elastic fiber is used as the central core yarn, and then air coating, mechanical coating and other methods are used to make the outer fiber evenly wrapped or coated on the outer layer of the elastic fiber. Due to the presence of internal elastic fibers, the coated yarn has good elasticity. It can stretch within a certain range, and after the stretching force disappears, it can quickly return to its original length. Clothes made of coated yarn can expand and contract with the movement of the body without causing tightness or restraint.

[0003] Existing, such as Chinese patent publication number: CN118913952A, discloses a fabric elasticity detection device for clothing production, including two pulling mechanisms, respectively used to pull opposite sides of the fabric, the pulling mechanism includes a pair of mutually parallel guide rails, the guide rails are driven to move in a direction perpendicular to the guide rails, a plurality of sliding sleeve assemblies are arranged on the guide rails, and each sliding sleeve assembly is provided with two clamping units that open and close to each other.

[0004] In the production process of elastic fiber coated yarn, precise control of its elastic properties is crucial. When testing the elastic fiber coated yarn, it needs to be clamped. The traditional clamping method is to clamp the edge of the elastic fiber coated yarn, and the unfolded shape is square or rectangular. However, when the square edge is clamped, the contact between the yarn and the edge of the clamp is linear. During the stretching process, the yarn is prone to twisting, especially when the stretching direction is not parallel to the edge of the square clamp. The yarn will be subjected to uneven lateral force, causing it to twist and deform, which will interfere with the test results and make the measured elastic index inaccurate. In addition, stress concentration will occur at the corners of the square. This is because the corner of the square is the intersection of the two sides, and the pressure here will be greater than the middle of the edge. During stretching, these stress concentration points may cause local excessive extrusion of the yarn, resulting in damage to the internal structure of the yarn, thereby affecting the uniform transmission of force.

[0005] Therefore, we propose an elastic fiber coated yarn elasticity precision testing instrument to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an instrument for accurately testing the elasticity of elastic fiber coated yarns, so as to solve the problem that the traditional square clamping test of elasticity mentioned in the background art causes uneven force on the elastic fiber coated yarns, thereby interfering with the test results.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an instrument for accurately testing the elasticity of elastic fiber coated yarn, comprising a testing component, wherein the testing component is used to clamp and pull the edge of the elastic fiber coated yarn in a circumferential direction, the testing component comprises a fixed ring, the top of the fixed ring is rotatably connected to a swivel, the inner wall of the swivel is fixedly connected to an active internal gear ring, the inner wall of the active internal gear ring is meshedly connected to a plurality of rotating gears in a circumferential direction, the outer surface of each rotating gear is meshedly connected to a tooth row, the top of each tooth row is fixedly connected to a testing plate, the top of each testing plate is fixedly connected to a plurality of fixed blocks near the arc edge, the outer surface of each fixed block is provided with a dynamometer, and the dynamometer is used to monitor the tension at the clamping point of the elastic fiber coated yarn in real time, and an anti-slip device is provided on one side of each dynamometer. The anti-skid clamp is used to gently clamp the elastic fiber coated yarn; the rotating plate and the rotating ring are driven to rotate by the forward and reverse motors, so that the active internal gear ring drives multiple rotating gears to rotate simultaneously, and the tooth row moves linearly at the same time, and multiple test plates can be retracted inward or expanded outward at the same time. When testing the elasticity, the edge of the elastic fiber coated yarn cut into a circle is clamped by the anti-skid clamp, and the circumferentially arranged anti-skid clamps can better fit the shape of the yarn, provide a more stable clamping effect, and effectively avoid the slippage of the yarn during the stretching process, thereby protecting the integrity of the yarn. After the elastic fiber coated yarn is clamped stably, after the tensile meter is started, the stretching device gradually applies tension to stretch the elastic fiber coated yarn. The tension test result can reflect the deformation of the elastic fiber coated yarn and the change of mechanical properties during the stretching process, so that the test result is more accurate.

[0008] Preferably, the inner wall of each rotating gear is rotatably connected to a limiting support block, and each limiting support block is fixedly connected to the inner wall of the fixing ring.

[0009] Preferably, the inner wall of the fixing ring is fixedly connected with a plurality of limit rods along the circumferential direction, one ends of the plurality of limit rods are welded to each other, the outside of each limit rod is slidably connected with a limit slider, and each limit slider is fixedly connected to the bottom of each test plate.

[0010] Preferably, four support columns are fixedly connected to the bottom of the fixing ring, wherein a mounting plate is fixedly connected between the outer surfaces of two adjacent support columns, a controller is arranged on the outer surface of the mounting plate, and the controller is electrically connected to the dynamometer.

[0011] Preferably, a fixing plate is fixedly connected between the outer surfaces of the other two support columns, a fixing frame is fixedly connected to the outer surface of the fixing plate, a forward and reverse motor is arranged on the outer surface of the fixing frame, and the forward and reverse motor is electrically connected to the controller.

[0012] Preferably, the output shaft of the forward and reverse motor is fixedly connected to a rotating plate, an active groove is provided on the outer surface of the rotating plate, a driven groove is provided on the outer surface of the rotating ring, a transmission belt is movably connected between the inner wall of the active groove and the inner wall of the driven groove, and the transmission belt is used to realize simultaneous rotation of the rotating plate and the rotating ring.

[0013] Preferably, a positioning assembly is fixedly connected between two adjacent support columns, and the positioning assembly is used to limit the position of the elastic limiting coated yarn to be tested, and the positioning assembly includes a connecting plate, and a reinforcing rod is fixedly connected to the outer surface of the connecting plate, and one end of the reinforcing rod is fixedly connected to the reinforcing plate; by clamping the swivel on the top of the fixed ring and interlocking the swivel with the fixed ring, the stability of the swivel during rotation can be ensured, and the rotation of the swivel is driven by a forward and reverse motor, and the turn plate is driven to rotate by starting the forward and reverse motors. Under the action of the transmission belt, the swivel will rotate with the turn plate, and the forward and reverse motors can change the driving direction according to the steering requirement of the turn plate when starting, that is, clockwise rotation and counterclockwise rotation are performed alternately, and the operation is controlled by a controller.

[0014] Preferably, a multi-stage electric push rod is arranged at the bottom of the reinforcing plate, the multi-stage electric push rod is electrically connected to the controller, a rubber pressure plate is fixedly connected to the bottom end of the multi-stage electric push rod, and a rough texture is arranged at the bottom of the rubber pressure plate.

[0015] Preferably, a laying component is fixedly connected between the inner walls of the four support columns, and the laying component is used to lay the elastic fiber coated yarn flatly. The laying component includes a cross connecting frame, and a supporting block is fixedly connected to the middle of the top of the cross connecting frame.

[0016] Preferably, the top of the support block is fixedly connected to a support rod, the top of the support rod is fixedly connected to an anti-skid paving plate, the anti-skid paving plate corresponds to the position of the rubber pressure plate, and the anti-skid paving plate and the rubber pressure plate are used to position the elastic limiting coated yarn to be tested; by fixing the anti-skid paving plate on the top of the support rod, its bottom is close to the top of the test plate, the surface of the anti-skid paving plate is made of anti-skid material, and the elastic fiber coated yarn is laid flat on the top surface of the anti-skid paving plate. At this time, the multi-stage electric push rod is started by the controller to extend it, so that the rubber pressure plate with it moves downward, and the bottom of the rubber pressure plate is provided with an anti-skid texture, and the material used is rubber, so it has good anti-skid properties. When the rubber pressure plate is in contact with the anti-skid paving plate, the elastic fiber coated yarn can be positioned in the middle of the anti-skid paving plate, which plays a positioning role.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is in use, the forward and reverse motors drive the rotating plate and the rotating ring to rotate, so that the active inner gear ring drives multiple rotating gears to rotate simultaneously, and the tooth row moves linearly at the same time. Multiple test plates can be simultaneously retracted inward or expanded outward. When testing the elasticity, the edges of the elastic fiber coated yarn cut into a circle are clamped by the anti-skid clamps. The circumferentially arranged anti-skid clamps can better fit the shape of the yarn, provide a more stable clamping effect, and effectively avoid the slippage of the yarn during the stretching process, thereby protecting the integrity of the yarn. After the elastic fiber coated yarn is clamped stably, after the tensile meter is started, the stretching device gradually applies tension to stretch the elastic fiber coated yarn. The tension test result can reflect the deformation of the elastic fiber coated yarn and the change of mechanical properties during the stretching process, so that the test result is more accurate.

[0019] 2. When the present invention is in use, the swivel is clamped on the top of the fixed ring and the swivel and the fixed ring are interlocked, so as to ensure the stability of the swivel during rotation. The rotation of the swivel is driven by the forward and reverse motor. By starting the forward and reverse motor, the rotating plate is driven to rotate. Under the action of the transmission belt, the swivel will rotate along with the rotating plate. When the forward and reverse motor is started, the driving direction can be changed according to the steering requirement of the rotating plate, that is, clockwise rotation and counterclockwise rotation are performed alternately. The operation is controlled by a controller.

[0020] 3. When the present invention is in use, the anti-skid paving plate is fixed on the top of the support rod, and its bottom is close to the top of the test plate. The surface of the anti-skid paving plate is made of anti-skid material, and the elastic fiber coated yarn is laid flat on the top surface of the anti-skid paving plate. At this time, the multi-stage electric push rod is started by the controller to extend it, so that the rubber pressure plate with it moves downward. The bottom of the rubber pressure plate is provided with an anti-skid texture. The material used is rubber, so it has good anti-skid properties. When the rubber pressure plate is attached to the anti-skid paving plate, the elastic fiber coated yarn can be positioned in the middle of the anti-skid paving plate, which plays a positioning role. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A first-view stereoscopic diagram of an elastic fiber coated yarn elasticity precision testing instrument of the present invention;

[0022] Figure 2 A second-view stereoscopic diagram of an elastic fiber coated yarn elasticity precision testing instrument of the present invention;

[0023] Figure 3 A third-angle perspective view of an elastic fiber coated yarn elasticity precision testing instrument of the present invention;

[0024] Figure 4 It is a perspective view of the structure of the laying component part of the elastic fiber coated yarn precision elasticity testing instrument of the present invention;

[0025] Figure 5 It is a partially cutaway stereoscopic view of a fixing ring of an elastic fiber coated yarn elasticity precision testing instrument of the present invention;

[0026] Figure 6 This is a top view of a three-dimensional diagram of the structure of a test assembly of an elastic fiber coated yarn precision test instrument of the present invention;

[0027] Figure 7 It is a bottom-up stereoscopic diagram of the structure of a test assembly of an elastic fiber coated yarn precision test instrument of the present invention;

[0028] Figure 8 This is a partial three-dimensional diagram of a test plate of an elastic fiber coated yarn precision elasticity tester according to the present invention.

[0029] In the figure:

[0030] 1. Test assembly; 101. Support column; 102. Fixed ring; 103. Rotating ring; 104. Driven groove; 105. Transmission belt; 106. Rotating plate; 107. Active groove; 108. Active inner gear ring; 109. Limit rod; 110. Limit support block; 111. Limit slider; 112. Rotating gear; 113. Gear row; 114. Test board; 115. Fixed block; 116. Tension gauge; 117. Anti-skid clip; 2. Positioning assembly; 201. Connecting plate; 202. Reinforcement rod; 203. Reinforcement plate; 204. Multi-stage electric push rod; 205. Rubber pressure plate; 3. Laying assembly; 301. Cross connecting frame; 302. Support block; 303. Support rod; 304. Anti-skid laying plate; 4. Mounting plate; 5. Controller; 6. Fixed plate; 7. Fixed frame; 8. Forward and reverse motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0032] Example 1: Reference Figure 1-Figure 8As shown, the present invention provides a technical solution: an elastic fiber coated yarn elasticity precision testing instrument, comprising a testing component 1, the testing component 1 is used to clamp and pull the edge of the elastic fiber coated yarn along the circumferential direction, the testing component 1 comprises a fixed ring 102, the top of the fixed ring 102 is rotatably connected with a rotating ring 103, the inner wall of the rotating ring 103 is fixedly connected with an active inner gear ring 108, the inner wall of the active inner gear ring 108 is meshedly connected with a plurality of rotating gears 112 along the circumferential direction, the outer surface of each rotating gear 112 is meshedly connected with a tooth row 113, and each tooth row 113 The top of each rotating gear 112 is fixedly connected with a test plate 114, and the top of each test plate 114 is fixedly connected with a plurality of fixed blocks 115 near the arc edge. A dynamometer 116 is arranged on the outer surface of each fixed block 115, and the dynamometer 116 is used to detect the tension at the clamping position of the elastic fiber coated yarn in real time. An anti-slip clip 117 is arranged on one side of each dynamometer 116, and the anti-slip clip 117 is used to gently clamp the elastic fiber coated yarn. The inner wall of each rotating gear 112 is rotatably connected with a limited support block 110, and each limited support block 110 is fixedly connected to the inner wall of the fixed ring 102. The inner wall of the fixed ring 102 is fixedly connected with a plurality of limit rods 109 along the circumferential direction, and one end of the plurality of limit rods 109 is welded, and the outer part of each limit rod 109 is slidably connected with a limit slider 111, and each limit slider 111 is respectively fixedly connected to the bottom of each test plate 114, and the bottom of the fixed ring 102 is fixedly connected with four support columns 101, wherein the outer surfaces of two adjacent support columns 101 are fixedly connected with a mounting plate 4, and the outer surface of the mounting plate 4 is provided with a controller 5, and the controller 5 is electrically connected to the dynamometer 116, and the other two support columns A fixing plate 6 is fixedly connected between the outer surfaces of 101, a fixing frame 7 is fixedly connected to the outer surface of the fixing plate 6, a forward and reverse motor 8 is arranged on the outer surface of the fixing frame 7, the forward and reverse motor 8 is electrically connected to the controller 5, a rotating plate 106 is fixedly connected to the output shaft of the forward and reverse motor 8, an active groove 107 is provided on the outer surface of the rotating plate 106, a driven groove 104 is provided on the outer surface of the rotating ring 103, a transmission belt 105 is movably connected between the inner wall of the active groove 107 and the inner wall of the driven groove 104, and the transmission belt 105 is used to realize the simultaneous rotation of the rotating plate 106 and the rotating ring 103.

[0033] In this embodiment, when in use, the forward and reverse motors 8 drive the rotating plate 106 and the rotating ring 103 to rotate, so that the active inner gear ring 108 rotates. Since the active inner gear ring 108 engages with the rotating gear 112, multiple rotating gears 112 can rotate simultaneously. The rotating gear 112 is limited by the limiting bracket 110 during rotation, so that the rotating gear 112 does not fall during the rotation process. The limiting slider 111 slides outside the limiting rod 109, so the movement direction of each test plate 114 must be along the limiting bracket 110. The rod 109, under the engagement of the rotating gear 112 and the tooth row 113, the tooth row 113 will perform a linear motion. When reverse motion is required, the forward and reverse motors 8 can be started in the reverse direction. Then, the multiple test plates 114 will shrink inwards at the same time and expand outwards at the same time. When testing the elasticity, the edge of the elastic fiber coated yarn cut into a circle is clamped by the anti-slip clamp 117. The circumferentially arranged anti-slip clamps 117 can better fit the shape of the yarn, provide a more stable clamping effect, and effectively prevent the yarn from slipping during the stretching process. The fiber-coated yarn is a circular structure, and the circumferential anti-slip clamp 117 can fit tightly along its circumference, and the friction force is more evenly distributed, so that the yarn is not easy to slide relatively in the clamp when being stretched. The outer fiber of the elastic fiber-coated yarn may be relatively fragile, and the circumferential clamp will not destroy the structure of the outer fiber due to excessive local pressure during the clamping process, thereby protecting the integrity of the yarn. After the elastic fiber-coated yarn is clamped stably, the tensile meter 116 is started, and the stretching device gradually applies tension to stretch the elastic fiber-coated yarn. The test results can reflect the deformation and mechanical property changes of the elastic fiber covered yarn during the stretching process. When the elastic fiber covered yarn begins to be pulled, the tension gradually increases, and the elongation of the elastic fiber covered yarn also increases accordingly. If the elastic fiber covered yarn can return to its original shape and size after the tension is removed, it means that it has good elasticity. By comparing the elongation of the elastic fiber covered yarn under different tensions and the degree of recovery to the original state after the tension is removed, the elastic properties of the elastic fiber covered yarn can be further quantified, making the test results more accurate.

[0034] Among them, the internal structure and working principle of the tension meter 116 are existing technologies. An electronic tension meter 116 is used, which includes a sensor, a signal processing circuit, a display device, a control circuit, and a power supply. The sensor usually uses a strain gauge, a piezoelectric crystal, etc. as a force sensor to convert the tension into an electrical signal. The strain gauge will change its resistance as the object under force is deformed, and the piezoelectric crystal will generate an electric charge when subjected to force, thereby realizing the conversion of force into an electrical signal. The signal processing circuit amplifies, filters, and performs analog-to-digital conversion on the weak electrical signal output by the sensor, and converts it into a digital signal for subsequent display and analysis. The display device is generally a liquid crystal display or a digital tube display, which is used to intuitively display the measured tension value. The control circuit is responsible for the control and operation of the entire tension meter 116, including setting measurement parameters, starting and stopping The control circuit is connected to the controller 5 for functions such as measurement, data storage and transmission, that is, the controller 5 is responsible for the control and operation of the dynamometer 116, and the power supply is an external power supply. The principle is: the sensor in the dynamometer 116 converts the tension into an electrical signal, such as a strain gauge sensor. Under the action of tension, the strain gauge is deformed, causing its resistance value to change, thereby causing the output voltage of the bridge circuit to change. The signal processing circuit amplifies and filters the voltage signal to remove noise and interference, and then converts the analog signal into a digital signal. Finally, the display device displays the value of the tension. When the elastic fiber coated yarn is pulled by using the dynamometer 116, the elastic fiber coated yarn will deform as the tension increases. In this process, the dynamometer 116 can record the change in the magnitude of the tension and observe the degree of deformation of the fabric.

[0035] Embodiment 2: Figure 1-Figure 8 As shown, the test component 1 is used to clamp and pull the edge of the elastic fiber coated yarn along the circumferential direction, and the test component 1 includes a fixed ring 102, and the top of the fixed ring 102 is rotatably connected to a swivel 103, and the outer surfaces of the other two support columns 101 are fixedly connected with a fixed plate 6, and the outer surface of the fixed plate 6 is fixedly connected with a fixed frame 7, and the outer surface of the fixed frame 7 is provided with a forward and reverse motor 8, and the forward and reverse motor 8 is electrically connected to the controller 5, and the output shaft of the forward and reverse motor 8 is fixedly connected with a rotating plate 106, and the outer surface of the rotating plate 106 is provided with an active groove 107, and the outer surface of the swivel 103 is provided with a driven groove 104, and a transmission belt 105 is movably connected between the inner wall of the active groove 107 and the inner wall of the driven groove 104, and the transmission belt 105 is used to realize the simultaneous rotation of the rotating plate 106 and the swivel 103.

[0036] In this embodiment, when in use, the four support columns 101 play a supporting role for the fixed ring 102, and can complete the installation of the controller 5 and the forward and reverse motor 8. By clamping the rotating ring 103 on the top of the fixed ring 102 and interlocking the rotating ring 103 with the fixed ring 102, the stability of the rotating ring 103 during rotation can be ensured. The rotation of the rotating ring 103 is driven by the forward and reverse motor 8. The forward and reverse motor 8 is started by the controller 5, and its output shaft rotates, which will drive the rotating plate 106 to rotate. Since the transmission belt 105 generates a large friction force with the inner walls of the active groove 107 and the driven groove 104 at the same time, the rotating ring 103 will rotate with the rotating plate 106 under the action of the transmission belt 105. The forward and reverse motor 8 can change the driving direction according to the steering requirement of the rotating plate 106 when starting, that is, clockwise rotation and counterclockwise rotation are performed alternately, and the operation is controlled by the controller 5.

[0037] Embodiment three: Figure 1-Figure 8 As shown, a positioning assembly 2 is fixedly connected between two adjacent support columns 101, and the positioning assembly 2 is used to limit the position of the elastic limit-covered yarn to be tested, and the positioning assembly 2 includes a connecting plate 201, and the outer surface of the connecting plate 201 is fixedly connected to a reinforcing rod 202, and one end of the reinforcing rod 202 is fixedly connected to a reinforcing plate 203, and a multi-stage electric push rod 204 is arranged at the bottom of the reinforcing plate 203, and the multi-stage electric push rod 204 is electrically connected to the controller 5, and the bottom end of the multi-stage electric push rod 204 is fixedly connected to a rubber pressure plate 205, and the bottom of the rubber pressure plate 205 is arranged The texture is not smooth, and a laying component 3 is fixedly connected between the inner walls of the four support columns 101, and the laying component 3 is used to lay the elastic fiber coated yarn flatly, and the laying component 3 includes a cross-connecting frame 301, and a supporting block 302 is fixedly connected to the middle of the top of the cross-connecting frame 301, and a supporting rod 303 is fixedly connected to the top of the supporting block 302, and a non-slip laying plate 304 is fixedly connected to the top of the support rod 303, and the non-slip laying plate 304 corresponds to the position of the rubber pressing plate 205, and the non-slip laying plate 304 and the rubber pressing plate 205 are used to position the elastic limiting coated yarn to be tested.

[0038] In this embodiment, when in use, the laying component 3 is installed between the four support columns 101 by using a cross connecting frame 301, and is connected and supported by the support rod 303. The anti-skid paving plate 304 is fixed to the top of the support rod 303, and its bottom is close to the top of the test plate 114. The surface of the anti-skid paving plate 304 is made of anti-skid material, and the elastic fiber coated yarn is laid flat on the top surface of the anti-skid paving plate 304. At this time, the multi-stage electric push rod 204 is started by the controller 5 to extend it, thereby driving the rubber pressing plate 205 to move downward. The bottom of the rubber pressing plate 205 is provided with an anti-skid texture, and the material used is rubber, so it has good anti-skid properties. When the rubber pressing plate 205 is in contact with the anti-skid paving plate 304, the elastic fiber coated yarn can be positioned in the middle of the anti-skid paving plate 304, thereby playing a positioning role.

[0039] The method of use and working principle of the device: When in use, the four support columns 101 support the fixed ring 102 and can complete the installation of the controller 5 and the forward and reverse motor 8. By clamping the rotating ring 103 on the top of the fixed ring 102 and interlocking the rotating ring 103 with the fixed ring 102, the stability of the rotating ring 103 during rotation can be ensured. The rotation of the rotating ring 103 is driven by the forward and reverse motor 8. The forward and reverse motor 8 is started by the controller 5, and its output shaft rotates, which will drive the rotating plate 106 to rotate. Since the transmission belt 105 generates a large friction force with the inner walls of the active groove 107 and the driven groove 104 at the same time, the rotating ring 103 will rotate with the rotating plate 106 under the action of the transmission belt 105, wherein When the forward and reverse motors 8 are started, the driving direction can be changed according to the steering requirements of the rotating plate 106, that is, clockwise rotation and counterclockwise rotation are performed alternately. The operation is controlled by the controller 5. When in use, the laying component 3 is installed between the four support columns 101 by using the cross connecting frame 301, and is connected and supported by the support rod 303. The anti-skid laying plate 304 is fixed on the top of the support rod 303, and its bottom is close to the top of the test plate 114. The surface of the anti-skid laying plate 304 is made of anti-skid material. The elastic fiber coated yarn is flatly laid on the top surface of the anti-skid laying plate 304. At this time, the multi-stage electric push rod 204 is started by the controller 5 to extend it, so that the rubber pressure plate 205 with it moves downward, and the bottom of the rubber pressure plate 205 It is provided with anti-skid texture, and the material used is rubber, so it has good anti-skid property. When the rubber pressure plate 205 is in contact with the anti-skid paving plate 304, the elastic fiber coated yarn can be positioned in the middle of the anti-skid paving plate 304. When in use, the forward and reverse motors 8 drive the rotating plate 106 and the rotating ring 103 to rotate, so that the active inner gear ring 108 rotates. Since the active inner gear ring 108 bites the rotating gear 112, multiple rotating gears 112 can rotate at the same time. The rotating gear 112 is limited by the limiting support block 110 when rotating, so that the rotating gear 112 does not fall off during the rotation process. The limiting slider 111 slides on the outside of the limiting rod 109, so the movement direction of each test plate 114 must be along With the limit rod 109, under the engagement of the rotating gear 112 and the tooth row 113, the tooth row 113 will perform a linear motion. When reverse motion is required, the forward and reverse motors 8 can be started in the reverse direction. Then, the multiple test plates 114 will shrink inwards and expand outwards at the same time. When testing the elasticity, the edge of the elastic fiber coated yarn cut into a circle is clamped by the anti-slip clamp 117. The circumferentially arranged anti-slip clamps 117 can better fit the shape of the yarn, provide a more stable clamping effect, and effectively prevent the yarn from slipping during the stretching process. Since the elastic fiber coated yarn is a circular structure, the circumferential anti-slip clamp 117 can fit closely along its circumference, and the friction force is more evenly distributed, so that the yarn is not easy to slide relative to the clamp when being stretched.The outer fiber of the elastic fiber coated yarn may be relatively fragile. The circumferential clamp will not destroy the structure of the outer fiber due to excessive local pressure during the clamping process, thereby protecting the integrity of the yarn. After the elastic fiber coated yarn is clamped stably, the tensile meter 116 is started, and the stretching device gradually applies tension to stretch the elastic fiber coated yarn. The tension test result can reflect the deformation and mechanical property changes of the elastic fiber coated yarn during the stretching process. When the elastic fiber coated yarn begins to be pulled, the tension gradually increases, and the elongation of the elastic fiber coated yarn also increases accordingly. If the elastic fiber covered yarn can recover to its original shape and size after the tension is removed, it means that it has good elasticity. By comparing the elongation of the elastic fiber covered yarn under different tensions and the degree of recovery to the original shape after the tension is removed, the elastic properties of the elastic fiber covered yarn can be further quantified, making the test results more accurate. When the elastic fiber covered yarn is pulled by the tensile meter 116, the elastic fiber covered yarn will deform as the tension increases. In this process, the tensile meter 116 can record the change in the magnitude of the tension and observe the degree of deformation of the fabric.

[0040] The wiring diagram of the dynamometer 116, the multi-stage electric push rod 204, the controller 5 and the forward and reverse motor 8 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring layout of the dynamometer 116, the multi-stage electric push rod 204, the controller 5 and the forward and reverse motor 8 will not be explained in detail.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elastic fiber coated yarn elasticity precision testing instrument, comprising a testing component (1), wherein the testing component (1) is used to clamp and pull the edge of the elastic fiber coated yarn along the circumferential direction, and is characterized in that: The test assembly (1) comprises a fixed ring (102), the top of the fixed ring (102) is rotatably connected to a rotating ring (103), the inner wall of the rotating ring (103) is fixedly connected to an active internal gear ring (108), the inner wall of the active internal gear ring (108) is meshedly connected to a plurality of rotating gears (112) along a circumferential direction, the outer surface of each rotating gear (112) is meshedly connected to a tooth row (113), and the top of each tooth row (113) is fixedly connected to a plurality of rotating gears (112). A test plate (114) is fixedly connected, and a plurality of fixed blocks (115) are fixedly connected to the top of each of the test plates (114) near the arc edge. A tension meter (116) is arranged on the outer surface of each of the fixed blocks (115), and the tension meter (116) is used to detect the tension at the clamping position of the elastic fiber coated yarn in real time. An anti-slip clamp (117) is arranged on one side of each of the tension meters (116), and the anti-slip clamp (117) is used to gently clamp the elastic fiber coated yarn.

2. The elastic fiber coated yarn elasticity precision testing instrument according to claim 1, characterized in that: The inner wall of each rotating gear (112) is rotatably connected to a limit support block (110), and each limit support block (110) is fixedly connected to the inner wall of the fixed ring (102).

3. The elastic fiber coated yarn elasticity precision testing instrument according to claim 2, characterized in that: The inner wall of the fixing ring (102) is fixedly connected with a plurality of limit rods (109) along the circumferential direction, one end of the plurality of limit rods (109) is welded to each other, the outside of each limit rod (109) is slidably connected to a limit slider (111), and each limit slider (111) is fixedly connected to the bottom of each test plate (114).

4. The elastic fiber coated yarn elasticity precision testing instrument according to claim 3, characterized in that: Four support columns (101) are fixedly connected to the bottom of the fixing ring (102), wherein a mounting plate (4) is fixedly connected between the outer surfaces of two adjacent support columns (101), a controller (5) is arranged on the outer surface of the mounting plate (4), and the controller (5) is electrically connected to the dynamometer (116).

5. The elastic fiber coated yarn elasticity precision testing instrument according to claim 4, characterized in that: A fixing plate (6) is fixedly connected between the outer surfaces of the other two support columns (101), a fixing frame (7) is fixedly connected to the outer surface of the fixing plate (6), a forward and reverse motor (8) is arranged on the outer surface of the fixing frame (7), and the forward and reverse motor (8) is electrically connected to the controller (5).

6. The elastic fiber coated yarn elasticity precision testing instrument according to claim 5, characterized in that: The output shaft of the forward and reverse motor (8) is fixedly connected to a rotating plate (106); an active groove (107) is provided on the outer surface of the rotating plate (106); a driven groove (104) is provided on the outer surface of the rotating ring (103); a transmission belt (105) is movably connected between the inner wall of the active groove (107) and the inner wall of the driven groove (104); and the transmission belt (105) is used to realize simultaneous rotation of the rotating plate (106) and the rotating ring (103).

7. The elastic fiber coated yarn elasticity precision testing instrument according to claim 6, characterized in that: A positioning assembly (2) is fixedly connected between two adjacent support columns (101), and the positioning assembly (2) is used to limit the position of the elastic fiber coated yarn to be tested. The positioning assembly (2) comprises a connecting plate (201), and a reinforcing rod (202) is fixedly connected to the outer surface of the connecting plate (201), and one end of the reinforcing rod (202) is fixedly connected to the reinforcing plate (203).

8. The elastic fiber covered yarn elasticity precision testing instrument according to claim 7, characterized in that: A multi-stage electric push rod (204) is arranged at the bottom of the reinforcing plate (203), and the multi-stage electric push rod (204) is electrically connected to the controller (5). A rubber pressing plate (205) is fixedly connected to the bottom end of the multi-stage electric push rod (204), and a rough texture is arranged at the bottom of the rubber pressing plate (205).

9. The elastic fiber covered yarn elasticity precision testing instrument according to claim 8, characterized in that: A laying component (3) is fixedly connected between the inner walls of the four support columns (101), and the laying component (3) is used to lay the elastic fiber coated yarn flatly. The laying component (3) comprises a cross connecting frame (301), and a supporting block (302) is fixedly connected to the middle of the top of the cross connecting frame (301).

10. The elastic fiber covered yarn elasticity precision testing instrument according to claim 9, characterized in that: The top of the support block (302) is fixedly connected to a support rod (303), and the top of the support rod (303) is fixedly connected to an anti-skid paving plate (304), the anti-skid paving plate (304) corresponds to the position of the rubber pressing plate (205), and the anti-skid paving plate (304) and the rubber pressing plate (205) are used to position the elastic limiting coated yarn to be tested.

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