A stretch test device for yoga fabric

Abstract

The application discloses a stretch test device for yoga fabric, belongs to the technical field of fabric testing, and is used for accurately measuring the stretch of the yoga fabric. The device comprises an elongated shell, an inner bracket, clamping structures symmetrically arranged on both sides of the inner bracket, two groups of transmission inclined beams symmetrically arranged, a pressure sensor, a telescopic part, rollers and an optical range finder. According to the application, the telescopic part drives the flat plate assembly to move downwards, and the two groups of rollers correspondingly extrude the transmission inclined surfaces of the two groups of transmission inclined beams, so that the two groups of transmission inclined beams simultaneously move towards the outside, thereby pushing the clamping structures to slide towards the outside. When the stretch test of the yoga fabric is performed, the two ends simultaneously apply the pulling force, the fabric is uniformly stressed during the test, the size of the acting force is measured in real time based on the pressure sensor, the distance between the two clamping structures is fed back in real time by the optical range finder, and the obtained relationship data of the pulling force and the distance are more accurate.

Description

Technical Field

[0001] This application relates to the field of fabric testing technology, and in particular to a device for testing the stretchability of yoga fabrics. Background Technology

[0002] As a functional sportswear, yoga wear has one of the core requirements that the fabric must have excellent and lasting stretch (elasticity). This stretch not only affects wearing comfort and freedom of movement, but also directly affects the accuracy of movements and athletic performance. Therefore, precise testing of the elongation, recovery rate, and elasticity durability of yoga fabrics has become a key aspect of fabric research and development, quality control, and product selection.

[0003] However, existing stretchability testing devices for yoga fabrics have the following drawbacks: for example, conventional universal testing machines apply force from one end, and due to insufficient fabric uniformity (fabric smoothness), there are large data fluctuations and insufficient test reliability during repeated testing. Utility Model Content

[0004] The purpose of this application is to provide a device for testing the extensibility of yoga fabrics with accurate test results.

[0005] To achieve the above objectives, this application provides a test device for the stretchability of yoga fabric, which includes an elongated shell, an inner bracket, clamping structures symmetrically distributed on both sides of the inner bracket, two sets of symmetrically distributed transmission inclined beams, a pressure sensor, a telescopic component, a roller, and an optical rangefinder.

[0006] The elongated housing is internally fixedly connected to an inner bracket. Both clamping structures are slidably engaged with the top of the elongated housing. The transmission beam is slidably engaged with the top of the inner bracket. A push block is provided at the outer end of the transmission beam. The push block is located inside the clamping structure, and a pressure sensor is fixedly connected to the side of the push block facing the clamping structure. The push block slides outward, which can push the clamping structure to slide outward. The magnitude of the force is measured in real time based on the pressure sensor. A transmission ramp is provided at the top of the transmission beam. The telescopic component is fixedly installed on the inner bracket, and a flat plate assembly is fixedly installed at the top telescopic end of the telescopic component. The top surface of the flat plate assembly is flush with the clamping surface of the clamping structure. A roller that engages with the transmission ramp is rotatably installed at the bottom of the flat plate assembly via a bracket.

[0007] The rollers are provided in two sets, and the two sets of rollers correspond to the two sets of transmission inclined beams respectively; and an optical rangefinder is installed between the two clamping structures, which is used to provide real-time feedback on the distance between the two clamping structures.

[0008] Based on the telescopic component driving the flat plate assembly, the two sets of rollers move downwards. The two sets of rollers respectively press the transmission inclined surfaces of the two sets of transmission inclined beams, causing the two sets of transmission inclined beams to move outwards simultaneously. The push block at the outer end of the transmission inclined beam slides outwards, thereby pushing the clamping structure to slide outwards. During the stretchability test of yoga fabric, tension is applied to both ends simultaneously, ensuring that the fabric is subjected to uniform force during the test. Furthermore, based on the pressure sensor measuring the magnitude of the force in real time and the optical rangefinder providing real-time feedback on the distance between the two clamping structures, the obtained tension-distance relationship data is more accurate.

[0009] As a preferred embodiment, the clamping structure includes a sliding plate, a guide post, and a clamping plate. The sliding plate is slidably engaged with the top of the elongated housing, and the guide post is fixedly connected to the bottom of the sliding plate. The clamping plate is slidably engaged with the guide post, and the clamping plate and the top of the sliding plate form a clamping area. A spring is sleeved on the guide post and below the clamping plate, and an adjusting nut is threadedly connected to the guide post and below the spring.

[0010] The flat panel assembly includes a beam frame and a platform. The platform is fixedly connected above the beam frame, and the end of the beam frame extends to the clamping plate, which is used to drive the clamping plate to move downward and close the clamping area. A spring drives the clamping plate to move elastically, so that the clamping area formed by the clamping plate and the sliding plate is in a normally open state. The platform of the flat panel assembly drives the clamping plate to move downward and close the clamping area, thereby realizing a convenient fabric clamping process and simplifying the user's operation steps.

[0011] Further preferably, the clamping plate includes a sliding kit, a Z-shaped clamping plate, and an L-shaped bracket. The sliding kit is slidably engaged with the guide post, the Z-shaped clamping plate is fixedly installed with the sliding kit, and the top plate of the Z-shaped clamping plate is located above the sliding plate. The L-shaped bracket is fixedly connected to the side of the Z-shaped clamping plate.

[0012] One end of the beam frame is located inside the L-shaped trailer, and an elastic block connects the beam frame and the inside of the L-shaped trailer.

[0013] The design of the sliding kit, Z-shaped clamping plate, and L-shaped carriage makes each part of the structure easy to process and then assembled together to form a clamping plate. The design of the elastic block provides an elastic zone for the push between the beam and the L-shaped carriage. That is, the beam presses down on the elastic block, and then the elastic block pushes the L-shaped carriage downward. The sliding kit, Z-shaped clamping plate, and L-shaped carriage move downward as a whole and cooperate with the sliding plate to clamp the fabric opening. The beam can continue to move downward. At this time, the elastic block itself deforms and does not push the sliding kit, Z-shaped clamping plate, and L-shaped carriage downward as a whole, which does not affect the continued downward movement of the roller of the flat plate assembly.

[0014] In a further preferred embodiment, a pad is fixedly connected to the bottom of the top flat plate of the Z-shaped clamping plate. The pad is used to protect the yoga fabric and prevent it from being torn during the clamping process.

[0015] In a further preferred embodiment, a hinge cover is installed between the outer side of the sliding plate and the end of the elongated housing. The hinge cover is used to prevent dust, debris, etc. from entering the elongated housing.

[0016] In a further preferred embodiment, a limiting block is fixedly connected to the inner side of the L-shaped bracket and below the sliding plate. The limiting block can limit the maximum height of the clamping plate to move upward. That is, when the top of the limiting block abuts against the bottom surface of the sliding plate, the clamping plate can no longer slide upward.

[0017] Further preferably, each of the sliding plates has at least two guide posts connected to its bottom, which can restrict the rotation of the clamping plate.

[0018] Further preferably, a central positioning protrusion is provided at the top of the elongated shell and between the two sets of clamping structures to facilitate the centering of the two sets of clamping structures, so that the two sets of clamping structures are symmetrically distributed about the center of the elongated shell.

[0019] Compared with the prior art, the beneficial effects of this application are as follows: (1) By designing a telescopic component to drive the flat plate assembly, the two sets of rollers move downwards. The two sets of rollers respectively press the transmission inclined surfaces of the two sets of transmission inclined beams, so that the two sets of transmission inclined beams move outwards at the same time. The push block at the outer end of the transmission inclined beam slides outwards, thereby pushing the clamping structure to slide outwards. When testing the extensibility of yoga fabric, the tension is applied at both ends at the same time, ensuring that the fabric is subjected to uniform force during the test. Based on the pressure sensor to measure the magnitude of the force in real time and the optical rangefinder to provide real-time feedback on the distance between the two clamping structures, the obtained tension-distance relationship data is more accurate (the extensibility of the fabric is judged based on the tension-distance data graph). (2) This application uses a spring to drive the clamping plate to move elastically, so that the clamping area composed of the clamping plate and the sliding plate is in a normally open state. The clamping plate is driven to move downward by the plate of the flat assembly to close the clamping area, thereby realizing a convenient fabric clamping process and simplifying the user's operation steps. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the device for testing the stretchability of the yoga fabric.

[0021] Figure 2 This is a frontal view of the apparatus used to test the stretchability of the yoga fabric.

[0022] Figure 3 This is a top-plan view of the apparatus used to test the stretchability of the yoga fabric.

[0023] Figure 4 for Figure 3 A plan view of the section line at point AA.

[0024] Figure 5 This is a three-dimensional schematic diagram of the internal structure of the stretchability testing device for the yoga fabric.

[0025] Figure 6 This is a three-dimensional schematic diagram of one side of the clamping structure of the stretchability testing device for the yoga fabric.

[0026] Figure 7 This is a disassembly diagram of the clamping plate of the stretchability testing device for this yoga fabric.

[0027] In the diagram: 1. Long shell; 2. Inner bracket; 3. Sliding plate; 4. Folding cover; 5. Sliding kit; 6. Z-shaped clamping plate; 7. Pad plate; 8. L-shaped bracket; 9. Limiting block; 10. Guide column; 11. Spring; 12. Adjusting nut; 13. Elastic block; 14. Beam frame; 15. Transmission inclined beam; 151. Push block; 152. Transmission inclined surface; 16. Roller; 17. Pressure sensor; 18. Platform; 19. Optical rangefinder; 20. Telescopic component. Detailed Implementation

[0028] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0032] like Figure 1-7 The apparatus shown is for testing the stretchability of yoga fabrics, used to accurately measure the stretchability of yoga fabrics. It includes an elongated housing 1, an inner support 2, clamping structures symmetrically distributed on both sides of the inner support 2, two sets of symmetrically distributed transmission beams 15, a pressure sensor 17, a telescopic component 20, a roller 16, and an optical rangefinder 19. The inner support 2 is fixedly connected inside the elongated housing 1. Both clamping structures are slidably engaged with the top of the elongated housing 1. The transmission beams 15 are slidably engaged with the top of the inner support 2. A push block 151 is provided at the outer end of the transmission beams 15, located inside the clamping mechanism and facing one side of the clamping structure. A pressure sensor 17 is fixedly connected to the side. The push block 151 slides outward, which can push the clamping structure to slide outward. The magnitude of the force is measured in real time based on the pressure sensor 17. A transmission inclined surface 152 is provided on the top of the transmission inclined beam 15. The telescopic component 20 is fixedly installed on the inner bracket 2. A flat plate assembly is fixedly installed on the top telescopic end of the telescopic component 20. The telescopic component 20 is generally a servo motor driven screw structure telescopic component, which has the advantages of smooth movement and convenient programming control of the telescopic distance. The top surface of the flat plate assembly is flush with the clamping surface of the clamping structure. The bottom of the flat plate assembly is rotatably installed with a roller 16 that cooperates with the transmission inclined surface 152 through a bracket.

[0033] Two sets of rollers 16 are provided, and the two sets of rollers 16 correspond to the two sets of transmission inclined beams 15 respectively; and an optical rangefinder 19 is installed between the two clamping structures, which is used to provide real-time feedback on the distance between the two clamping structures.

[0034] Based on the telescopic component 20 driving the flat plate assembly, the two sets of rollers 16 move downwards. The two sets of rollers 16 respectively press the transmission inclined surfaces 152 of the two sets of transmission inclined beams 15, causing the two sets of transmission inclined beams 15 to move outwards simultaneously. The push block 151 at the outer end of the transmission inclined beam 15 slides outwards, thereby pushing the clamping structure to slide outwards. During the stretchability test of yoga fabric, tension is applied to both ends simultaneously, ensuring that the fabric is subjected to uniform force during the test. Based on the pressure sensor 17 measuring the magnitude of the force in real time and the optical rangefinder 19 providing real-time feedback on the distance between the two clamping structures, the obtained tension-distance relationship data is more accurate. The stretchability of the fabric is judged based on the tension-distance data graph.

[0035] In one embodiment, the clamping structure includes a sliding plate 3, a guide post 10, and a clamping plate. The sliding plate 3 is slidably engaged with the top of the elongated housing 1, the bottom of the sliding plate 3 is fixedly connected to the guide post 10, the clamping plate is slidably engaged with the guide post 10, and the clamping plate and the top of the sliding plate 3 form a clamping area. A spring 11 is sleeved on the guide post 10 and below the clamping plate, and an adjusting nut 12 is threadedly connected on the guide post 10 and below the spring 11.

[0036] The flat panel assembly includes a beam frame 14 and a platform 18. The platform 18 is fixedly connected above the beam frame 14. The end of the beam frame 14 extends to the clamping plate and is used to drive the clamping plate to move downward and close the clamping area. The spring 11 drives the clamping plate to move elastically, so that the clamping area formed by the clamping plate and the sliding plate 3 is in a normally open state. The platform 18 of the flat panel assembly drives the clamping plate to move downward and close the clamping area, thereby realizing a convenient fabric clamping process and simplifying the user's operation steps.

[0037] In one embodiment, the clamping plate includes a sliding kit 5, a Z-shaped clamping plate 6, and an L-shaped bracket 8. The sliding kit 5 is slidably engaged with the guide post 10. The Z-shaped clamping plate 6 is fixedly installed with the sliding kit 5, and the top plate of the Z-shaped clamping plate 6 is located above the sliding plate 3. The L-shaped bracket 8 is fixedly connected to the side of the Z-shaped clamping plate 6. One end of the beam frame 14 is located inside the L-shaped bracket 8, and an elastic block 13 is connected between the beam frame 14 and the inside of the L-shaped bracket 8.

[0038] The design of the sliding kit 5, Z-shaped clamping plate 6, and L-shaped carriage 8 makes each part of the structure easy to process, and then they are assembled together to form a clamping plate. The design of the elastic block 13 gives the push between the beam frame 14 and the L-shaped carriage 8 an elastic zone. That is, the beam frame 14 presses the elastic block 13 downward, and then the elastic block 13 pushes the L-shaped carriage 8 downward. The sliding kit 5, Z-shaped clamping plate 6, and L-shaped carriage 8 move downward as a whole and cooperate with the sliding plate 3 to clamp the fabric opening. The beam frame 14 can continue to move downward. At this time, the elastic block 13 itself deforms, but does not push the sliding kit 5, Z-shaped clamping plate 6, and L-shaped carriage 8 downward as a whole, and does not affect the continued downward movement of the roller 16 by the flat plate assembly.

[0039] In one embodiment, a pad 7 is fixedly connected to the bottom of the top flat plate of the Z-shaped clamping plate 6. The pad 7 is used to protect the yoga fabric and prevent the yoga fabric from being torn during the clamping process.

[0040] In one embodiment, a hinge cover 4 is installed between the outer side of the sliding plate 3 and the end of the elongated housing 1. The hinge cover 4 is used to prevent dust, debris and other objects from entering the elongated housing 1.

[0041] In one embodiment, a limiting block 9 is fixedly connected to the inner side of the L-shaped bracket 8 and below the sliding plate 3. The limiting block 9 can limit the maximum height of the clamping plate to move upward. That is, when the top of the limiting block 9 abuts against the bottom surface of the sliding plate 3, the clamping plate can no longer slide upward.

[0042] In one embodiment, at least two guide posts 10 are connected to the bottom of each sliding plate 3, which can restrict the rotation of the clamping plate.

[0043] In one embodiment, a central positioning protrusion is provided at the top of the elongated housing 1 and between the two sets of clamping structures to facilitate the centering of the two sets of clamping structures, so that the two sets of clamping structures are symmetrically distributed about the center of the elongated housing 1.

[0044] Working principle: During use, the top of the platform 18 and the top of the sliding plate 3 are in the same plane. The tester lays the cut yoga fabric test sample flat on the platform 18, with both sides of the yoga fabric test sample placed within the clamping area formed by the Z-shaped clamping plate 6 and the top of the sliding plate 3. The telescopic component 20 is activated, which moves the platform 18 downward. The beam frame 14 is fixed to the platform 18 and moves downward simultaneously. The end of the beam frame 14 presses down against the elastic block 13, which pushes the elastic block 8 and the Z-shaped clamping plate 6 downward, clamping and fixing the sides of the yoga fabric test sample between the Z-shaped clamping plate 6 and the sliding plate 3. The above process occurs first and within a short movement distance. The clamping process is completed internally; subsequently, the platform 18 continues to move downward, driving the two sets of rollers 16 to move downward. The two sets of rollers 16 respectively press the transmission inclined surfaces 152 of the two sets of transmission inclined beams 15, causing the two sets of transmission inclined beams 15 to move outward simultaneously. The push block 151 at the outer end of the transmission inclined beam 15 slides outward, thereby pushing the sliding plate 3 to slide outward. During the stretchability test of yoga fabric, tension is applied to both ends simultaneously, ensuring that the fabric is subjected to uniform force during the test. Based on the pressure sensor 17 measuring the magnitude of the force in real time and the optical rangefinder 19 providing real-time feedback on the distance between the two clamping structures, the obtained tension-distance relationship data is more accurate. The stretchability of the fabric is judged based on the tension-distance data graph.

[0045] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A device for testing the extensibility of yoga fabrics, characterized in that, include: An elongated shell (1) has an inner bracket (2) fixedly connected inside the elongated shell (1). The clamping structures are symmetrically distributed on both sides of the inner bracket (2), and the clamping structures slide in conjunction with the top of the elongated shell (1); Two sets of symmetrically distributed transmission inclined beams (15) are provided. The transmission inclined beams (15) slide with the top of the inner bracket (2). A push block (151) is provided at the outer end of the transmission inclined beams (15). The push block (151) is located inside the clamping structure, and a pressure sensor (17) is fixedly connected to the side of the push block (151) facing the clamping structure. A transmission inclined surface (152) is provided at the top of the transmission inclined beams (15). Telescopic component (20), the telescopic component (20) is fixedly installed on the inner bracket (2), and a flat plate assembly is fixedly installed at the top telescopic end of the telescopic component (20). The top surface of the flat plate assembly is flush with the clamping surface of the clamping structure. The bottom of the flat plate assembly is rotatably installed with a roller (16) that cooperates with the transmission inclined surface (152) through a bracket. The rollers (16) are provided in two sets, and the two sets of rollers (16) correspond to the two sets of transmission inclined beams (15) respectively; An optical rangefinder (19) is installed between the two clamping structures.

2. The extensibility testing apparatus for yoga fabrics as described in claim 1, characterized in that, The clamping structure includes: The sliding plate (3) is slidably engaged with the top of the elongated shell (1), and the bottom of the sliding plate (3) is fixedly connected with a guide post (10). A clamping plate is slidably fitted with a guide post (10), and the clamping plate forms a clamping area with the top of the sliding plate (3). A spring (11) is sleeved on the guide post (10) and below the clamping plate. An adjusting nut (12) is threadedly connected on the guide post (10) and below the spring (11). The flat plate assembly includes a beam frame (14) and a platform (18), the platform (18) being fixedly connected above the beam frame (14), and the end of the beam frame (14) extending to the clamping plate to drive the clamping plate to move downward and close the clamping area.

3. The extensibility testing apparatus for yoga fabrics as described in claim 2, characterized in that, The clamping plate includes: Sliding kit (5), which is slidably engaged with guide post (10); Z-shaped clamping plate (6), the Z-shaped clamping plate (6) is fixedly installed with the sliding kit (5), and the top plate of the Z-shaped clamping plate (6) is located above the sliding plate (3); L-shaped bracket (8), which is fixedly connected to the side of Z-shaped clamping plate (6); One end of the beam frame (14) is located inside the L-shaped trailer (8), and an elastic block (13) is connected between the beam frame (14) and the inside of the L-shaped trailer (8).

4. The stretchability testing device for yoga fabric as described in claim 3, characterized in that: The top plate of the Z-shaped clamping plate (6) is fixedly connected to the bottom of the pad plate (7).

5. The stretchability testing device for yoga fabric as described in claim 3, characterized in that: A hinge cover (4) is installed between the outer side of the sliding plate (3) and the end of the elongated shell (1).

6. The stretchability testing apparatus for yoga fabrics as described in claim 3, characterized in that: A limiting block (9) is fixedly connected to the inside of the L-shaped bracket (8) and below the sliding plate (3).

7. The stretchability testing apparatus for yoga fabrics as described in claim 3, characterized in that: Each of the sliding plates (3) has at least two guide posts (10) connected to its bottom.

8. The apparatus for testing the extensibility of yoga fabrics as described in any one of claims 1 to 7, characterized in that: A central positioning protrusion is provided on the top of the elongated shell (1) and between the two sets of clamping structures.

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