Fabric elasticity and elasticity retention performance detection device

Abstract

The invention relates to the technical field of detection devices, and discloses a fabric elasticity and elasticity retention performance detection device which comprises two pre-tightening fabric clamping mechanisms and a movable limiting type elasticity detection mechanism. The device for detecting the elasticity and the elasticity retention performance of the fabric can detect the elasticity and the elasticity retention performance of the fabric, and when the elasticity retention performance is detected, the elasticity retention performance of the fabric can be intuitively obtained by controlling the spiral spring to form an initial elasticity value and observing the difference value between the subsequent elasticity value and the initial elasticity value.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, in particular to a device for detecting the elasticity and elasticity retention performance of fabrics. Background Art

[0002] In the fabric field, in order to ensure that it complies with relevant national standards during the research and development and production process, it is necessary to use physical or chemical methods to conduct qualitative or quantitative inspection and testing in accordance with relevant standards. Elasticity is one of the most basic requirements for the wearing performance of nylon knitted fabrics.

[0003] To this end, the Chinese patent publication number "CN119043892A" announced "A nylon fabric elasticity detection device and detection method", whose main structure includes a limit frame, a clamping roller and a movable clamping seat arranged in the vertical direction on the limit frame, which are used to clamp the nylon fabric specimen and place the nylon fabric specimen vertically; and a linear stretching unit arranged on one side of the limit frame, the linear stretching unit is movably provided with a mounting seat, and the mounting seat is provided with a driven fixing member for fixing the movable clamping seat, and the linear stretching unit is movably provided with a mounting seat. There is a driving adjustment structure, and the driving adjustment structure is coordinated with the driven fixing part. When the nylon fabric elasticity testing device and the testing method are used to test the tensile elasticity of the nylon fabric specimen, the execution tension parameters of the linear stretching unit are set according to the testing standard of the tensile elasticity of the textile fabric. Under the drive of the linear stretching unit, the mounting seat drives the movable clamping seat connected to the driven fixing part to move, so that the nylon fabric specimen clamped by the movable clamping seat is stretched. The tension required for the nylon fabric specimen to be stretched and torn is recorded to reflect the tensile elasticity resistance of the nylon fabric specimen.

[0004] However, when the above-mentioned nylon fabric elasticity detection device and detection method perform elasticity detection on the fabric, since the value obtained after the tension parameter is set to execute can only reflect the tension that the fabric can be subjected to in a short period of time, and reflect the tension generated in a short period of time. When it is necessary to test the elasticity retention performance of the fabric, it is impossible to determine whether the fabric has been deformed after being subjected to tension. Therefore, it is difficult to intuitively reflect the data on the elasticity retention performance of the fabric. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a device for detecting the elasticity and elasticity retention performance of fabrics, which can detect the elasticity and elasticity retention performance of fabrics. When detecting the elasticity retention performance, the initial elastic pressure formed by the coil spring is controlled to form an initial elastic value, and then the difference between the subsequent elastic value and the initial elastic value is observed to intuitively obtain the elasticity retention performance of the fabric, thereby solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting the elasticity and elasticity retention performance of fabrics, comprising a support plate with a bottom support base installed at the bottom and two rotor mounting holes symmetrically arranged in the support plate, and also comprising two pre-tightened fabric clamping mechanisms, a rectangular frame that can move longitudinally along the support plate, a hollow sliding shell installed in the rectangular frame and can move horizontally along the rectangular frame, an elastic air membrane embedded in the hollow sliding shell and capable of clamping the corners of the fabric, and a No. 1 externally threaded rod that can drive the hollow sliding shell to move horizontally along the rectangular frame when rotating; and a movable limiting elastic detection mechanism. It is internally provided with two rotatable No. 2 external threaded rods and a No. 2 rotating shaft, a threaded sleeve that can produce a longitudinal movement effect when the No. 2 external threaded rod rotates, a limiting sliding ring that can move along the axial direction of the No. 2 rotating shaft and drive the rectangular frame located above it, a sliding resistance ring located directly below the limiting sliding ring and capable of moving along the axial direction of the No. 2 rotating shaft, a pressure sensor installed on the top of the sliding resistance ring and capable of reflecting the pressure value between the sliding resistance ring and the limiting sliding ring, an external coil spring installed between the threaded sleeve and the sliding resistance ring, and two synchronous motors fixedly installed on the bottom of the support plate and capable of driving the two No. 2 external threaded rods to rotate synchronously and in the same direction.

[0007] Preferably, the pre-tightened fabric clamping mechanism further comprises a longitudinal connecting rod, a component movable cavity with open ends at the center of the rectangular frame, two hollow sliding shells capable of moving along the length direction of the component movable cavity are arranged on the rectangular frame inside the component movable cavity, a No. 1 internal threaded hole is respectively provided on both sides of the rectangular frame, a No. 1 external threaded rod capable of rotating is installed inside each of the No. 1 internal threaded holes through a No. 1 threaded structure, the No. 1 external threaded rod is provided with a No. 1 rotating shaft integral with it at one end pointing to the hollow sliding shell, and the hollow sliding shell is provided with an axle mounting groove with an inner concave structure at the end facing the No. 1 rotating shaft. The shaft body of the No. 1 rotating shaft is installed inside the shaft body installation groove through a bearing, and the two hollow sliding shells are provided with a fabric clamping groove with an inward concave structure on the opposite sides. The interior of the hollow sliding shell is provided with a gas compression chamber with an open opposite side, and the hollow sliding shell is embedded with an elastic air film in a sealed edge-sealed manner at the open end of the gas compression chamber. One end face of the hollow sliding shell is provided with a gas compensation channel connected to the gas compression chamber and with a gas valve installed inside. One end of the rectangular frame is provided with a longitudinal connecting rod with an integral structure therewith, and one end of the longitudinal connecting rod is fixedly installed with a No. 1 connecting plate, and the No. 1 connecting plate at the lower end is fixedly installed on the upper surface of the support table.

[0008] Preferably, the No. 1 thread structure includes an internal thread structure arranged inside the No. 1 internal thread hole and an external thread structure arranged on the No. 1 external thread rod body, and the internal thread structure matches the external thread structure.

[0009] Preferably, the elastic air membrane is made of a rubber material with an extensible function, and a closed area is formed between one side of the elastic air membrane and the gas compression chamber.

[0010] Preferably, the movable limiting elastic detection mechanism also includes a horizontal connecting shaft, a motor fixed housing is fixedly installed on the outside of the synchronous motor, the top of the motor fixed housing is fixedly installed on the bottom surface of the support table, the rotor of the synchronous motor is fixedly installed in the rotor mounting hole through a bearing, and the top end of the rotor is fixedly installed with a No. 2 external threaded rod in the longitudinal direction through a coupling, the top end of the No. 2 external threaded rod is provided with a limiting ring structure with an integral structure therewith, the top end of the limiting ring structure is provided with a No. 2 rotating shaft with an integral structure, the top end of the No. 2 rotating shaft is fixedly installed with a top limiting plate, and the center of the threaded sleeve is provided with a through hole. The second internal threaded hole is installed on the rod body of the second external threaded rod through the second threaded structure, and the two threaded sleeves are fixedly connected by a horizontal connecting shaft. A sliding resistance ring and a limit sliding ring that can move axially along the No. 2 rotating shaft are placed on the shaft body of the No. 2 rotating shaft, and the sliding resistance ring is located directly below the limit sliding ring. A pressure sensor is fixedly installed on the upper surface of the sliding resistance ring. The No. 2 external threaded rod and the No. 2 rotating shaft are provided with an external coil spring on the outer periphery of the rod body and shaft body between the threaded sleeve and the sliding resistance ring. The circumferential side of the limit sliding ring is fixedly installed with a horizontal connecting rod fixedly connected to the longitudinal connecting rod located above.

[0011] Preferably, the No. 2 thread structure includes an internal thread structure arranged inside the No. 2 internal thread hole and an external thread structure arranged on the No. 2 external thread rod body, and the internal thread structure matches the external thread structure.

[0012] Preferably, the pressure sensing sheet is connected to a display controller capable of displaying the pressure value, and the display controller has the function of recording relevant data.

[0013] Preferably, it also includes a gravity-type compensation mechanism, which is internally provided with two fixed sleeves fixedly installed on both sides of the pre-tightened fabric clamping mechanism, rotating pulleys installed on the periphery of both ends of the fixed sleeves in a rotatable manner, and a connecting rope passing around the rotating pulley that can exert an upward pulling force on the No. 1 connecting plate located above, thereby offsetting the gravity of the pre-tightened fabric clamping mechanism located above.

[0014] Preferably, the gravity-type compensation mechanism also includes two longitudinal support rods, the bottom ends of the longitudinal support rods are fixedly mounted on the upper surface of the support table through a No. 2 connecting plate, the top end of the longitudinal support rods is fixedly mounted with a fixed sleeve, the sleeve hole of the fixed sleeve is mounted with a rotatable No. 3 rotating shaft through a bearing, and a rotatable rotating wheel is fixedly mounted at each end of the No. 3 rotating shaft, a connecting rope is placed on the upper half of each rotating wheel, and the two connecting ropes on the same side are fixedly mounted with a No. 3 connecting plate at the opposite ends, the No. 3 connecting plate is fixedly connected to the top end of the No. 1 connecting plate, and a heavy hanging object is fixedly mounted on the other end of the No. 1 connecting plate.

[0015] Preferably, the sum of the gravity of the four heavy hanging objects is consistent with the overall gravity of one pre-tightened fabric clamping mechanism.

[0016] Compared with the prior art, the present invention provides a device for testing the elasticity and elasticity retention performance of fabrics, which has the following beneficial effects: It can test the elasticity and elasticity retention performance of the fabric. When testing the elasticity retention performance, the initial elasticity value is formed by controlling the coil spring, and then the difference between the subsequent elasticity value and the initial elasticity value is observed to intuitively obtain the elasticity retention performance of the fabric. 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 at a first viewing angle.

[0019] Figure 3 It is a three-dimensional cross-sectional view of the present invention at a second viewing angle.

[0020] Figure 4 It is a three-dimensional diagram of the pre-tightened fabric clamping mechanism of the present invention.

[0021] Figure 5 It is a three-dimensional cross-sectional view of the pre-tightened fabric clamping mechanism of the present invention.

[0022] Figure 6 It is a three-dimensional cross-sectional view of the hollow sliding shell of the present invention.

[0023] Figure 7 It is a three-dimensional diagram of the movable limiting elastic detection mechanism in the present invention.

[0024] Figure 8 It is a three-dimensional cross-sectional view of the movable limiting elastic detection mechanism of the present invention.

[0025] Figure 9 It is a three-dimensional diagram of the gravity compensation mechanism in the present invention.

[0026] Figure 10 It is a three-dimensional cross-sectional view of the gravity compensation mechanism in the present invention.

[0027] Among them: 1. Support plate; 2. Bottom support base; 3. Rotor mounting hole; 4. Pre-tightened fabric clamping mechanism; 41. Rectangular frame; 42. Component movable cavity; 43. Longitudinal connecting rod; 44. No. 1 connecting plate; 45. No. 1 internal threaded hole; 46. No. 1 external threaded rod; 47. No. 1 rotating shaft; 48. Hollow sliding shell; 49. Gas compensation channel; 410. Shaft mounting groove; 411. Fabric clamping groove; 412. Gas compression chamber; 413. Elastic air film; 5. Movable limited elastic detection mechanism; 51. Motor fixed shell; 52. Synchronous motor; 53. Rotor; 54. Coupling; 55. No. 2 external threaded rod; 56. Threaded sleeve; 57. No. 2 internal threaded hole; 58. Horizontal connecting shaft; 59. Sliding contact ring; 510. External coil spring; 511. Limiting ring structure; 512. Pressure sensor; 513. Limiting sliding ring; 514. Horizontal connecting rod; 515. Top limiting plate; 516. No. 2 rotating shaft; 6. Gravity offset mechanism; 61. Longitudinal support rod; 62. No. 2 connecting plate; 63. Fixed sleeve; 64. No. 3 rotating shaft; 65. Rotating pulley; 66. Connecting rope; 67. No. 3 connecting plate; 68. Heavy hanging object. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1 、 Figure 2 and Figure 3 A device for detecting the elasticity and elasticity retention performance of a fabric comprises a support plate 1 with a bottom support base 2 installed at the bottom and two rotor mounting holes 3 symmetrically arranged in the support plate 1. When working, a pressure sensor 512 is connected to a display controller that can display the pressure value, and the display controller has the function of recording relevant data.

[0030] To achieve a pre-tightening clamping effect on the fabric, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6, it is necessary to set up two pre-tightened fabric clamping mechanisms 4, a rectangular frame 41 that can move longitudinally along the support table 1, a hollow sliding shell 48 installed in the rectangular frame 41 and able to move horizontally along the rectangular frame 41, an elastic air film 413 embedded in the hollow sliding shell 48 and able to clamp the corners of the fabric, and a No. 1 external threaded rod 46 that can drive the hollow sliding shell 48 to move horizontally along the rectangular frame 41 when rotating, so that the four corners of the fabric are respectively clamped in the four fabric clamping grooves 411, and then an inflation device is used to fill the rated air pressure into each gas compensation channel 49. Under the gas pressure, the elastic air film 413 will expand, thereby clamping the fabric between the two expanded elastic air films 413, achieving the clamping effect on the fabric, and then the No. 1 external threaded rod 46 is rotated in a directional manner. Due to the threaded structure connection, the No. 1 external threaded rod 46 will drive the hollow sliding shell 48 to move until the fabric is in a straight state in the width direction, thereby achieving the pre-tightening effect on the fabric.

[0031] For the specific structure of the pre-tightening fabric clamping mechanism 4, please refer to Figure 4 、 Figure 5 and Figure 6, also includes a longitudinal connecting rod 43, the center of the rectangular frame 41 is provided with a component movable cavity 42 with open ends, and the rectangular frame 41 is provided with two hollow sliding shells 48 that can move along the length direction of the component movable cavity 42 inside the component movable cavity 42, and a No. 1 internal threaded hole 45 is provided on both sides of the rectangular frame 41, and a No. 1 external threaded rod 46 that can rotate is installed inside each of the No. 1 internal threaded holes 45 through a No. 1 threaded structure, and the No. 1 external threaded rod 46 is provided with a No. 1 rotating shaft 47 with an integral structure at one end pointing to the hollow sliding shell 48, and the hollow sliding shell 48 is provided with a shaft mounting groove 410 of an inner concave structure at the end facing the No. 1 rotating shaft 47, and the shaft body of the No. 1 rotating shaft 47 is installed inside the shaft mounting groove 410 through a bearing, and the two hollow sliding shells 48 are provided with a fabric clamping groove 411 of an inner concave structure on the opposite sides. The interior of the sliding shell 48 is provided with a gas compression chamber 412 with an opposite surface in an open state. The hollow sliding shell 48 is embedded with an elastic gas membrane 413 in a sealed edge-sealed manner at the open end of the gas compression chamber 412. One end face of the hollow sliding shell 48 is provided with a gas compensation channel 49 which is connected to the gas compression chamber 412 and has a gas valve installed inside. One end of the rectangular frame 41 is provided with a longitudinal connecting rod 43 with an integral structure therewith. One end of the longitudinal connecting rod 43 is fixedly installed with a No. 1 connecting plate 44. The No. 1 connecting plate 44 at the lower end is fixedly installed on the upper surface of the support table 1. The No. 1 threaded structure includes an internal threaded structure provided inside the No. 1 internal threaded hole 45 and an external threaded structure provided on the rod body of the No. 1 external threaded rod 46, and the internal threaded structure matches the external threaded structure. The elastic gas membrane 413 is made of a rubber material with an extensible function, and a closed area is formed between one side of the elastic gas membrane 413 and the gas compression chamber 412.

[0032] To test the elasticity and elasticity retention of fabrics, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 and Figure 8, it is necessary to set up a movable limit elastic detection mechanism 5, which is provided with two rotatable No. 2 external threaded rods 55 and No. 2 rotating shaft 516, a threaded sleeve 56 that can produce a longitudinal movement effect when the No. 2 external threaded rod 55 rotates, a limit sliding ring 513 that can move along the axial direction of the No. 2 rotating shaft 516 and drive the rectangular frame 41 located above, a sliding contact ring 59 located just below the limit sliding ring 513 and capable of moving axially along the No. 2 rotating shaft 516, and a sliding contact ring 59 installed on the top of the sliding contact ring 59 and The pressure sensor 512 can reflect the pressure value between the sliding contact ring 59 and the limit sliding ring 513, the external coil spring 510 installed between the threaded sleeve 56 and the sliding contact ring 59, and the two synchronous motors 52 fixedly installed at the bottom of the support plate 1 and capable of driving the two second external threaded rods 55 to rotate synchronously and in the same direction. The two synchronous motors 52 are started to drive the second external threaded rod 55 to rotate in a directional manner. Due to the threaded structure connection, the threaded sleeve 56 will move longitudinally, causing the threaded sleeve 56 to move upward. When the sliding resistance ring 59 drives the pressure sensor piece 512 to resist the bottom of the limiting sliding ring 513, the limiting sliding ring 513 will drive the rectangular frame 41 located above to move upward until the fabric is in a straight state in the length direction. The pressure exerted on the pressure sensor piece 512 is observed through the display controller. This pressure is the pulling force of the fabric at this time, which can intuitively reflect the elasticity of the fabric at this time, and then the elasticity of the fabric is tested. When the elastic retention performance of the fabric is required to be tested, the outer coil spring 510 generates a rated elastic pressure on the sliding resistance ring 59 and the limiting sliding ring 513. This elastic pressure is the initial elastic pressure of the fabric. After a period of time, the elasticity of the fabric will decrease, and the outer coil spring 510 will be in an elastic compression state at all times, providing the necessary elastic force, causing the fabric to be stretched in the length direction. By observing the value corresponding to the pressure change of the display controller, it should be noted that the elastic pressure observed subsequently will definitely be less than the initial elastic pressure, and data related to the elastic retention performance can be obtained.

[0033] For the specific structure of the movable limit elastic detection mechanism 5, please refer to Figure 7 and Figure 8, also includes a horizontal connecting shaft 58, the outside of the synchronous motor 52 is fixedly installed with a motor fixed shell 51, the top of the motor fixed shell 51 is fixedly installed on the bottom surface of the support table 1, the rotor 53 of the synchronous motor 52 is fixedly installed in the rotor mounting hole 3 through a bearing, and the top of the rotor 53 is fixedly installed with a No. 2 external threaded rod 55 in the longitudinal direction through a coupling 54, the top of the No. 2 external threaded rod 55 is provided with a limiting ring structure 511 with an integral structure therewith, and the top of the limiting ring structure 511 is provided with a No. 2 rotating shaft 516 with an integral structure, and the top of the No. 2 rotating shaft 516 is fixedly installed with a top limiting plate 515, and the center of the threaded sleeve 56 is provided with a No. 2 internal threaded hole 57 installed on the rod body of the No. 2 external threaded rod 55 through a No. 2 threaded structure, and the two threaded sleeves 56 are connected by a horizontal The connecting shaft 58 is fixedly connected, and a sliding resistance ring 59 and a limiting sliding ring 513 that can move axially along the No. 2 rotating shaft 516 are placed on the shaft body of the No. 2 rotating shaft 516, and the sliding resistance ring 59 is located directly below the limiting sliding ring 513. A pressure sensor plate 512 is fixedly installed on the upper surface of the sliding resistance ring 59. The No. 2 externally threaded rod 55 and the No. 2 rotating shaft 516 are sleeved with an external coil spring 510 on the outer periphery of the rod body and shaft body between the threaded sleeve 56 and the sliding resistance ring 59. A horizontal connecting rod 514 fixedly connected to the longitudinal connecting rod 43 located above is fixedly installed on the circumferential side of the limiting sliding ring 513. The No. 2 threaded structure includes an internal threaded structure arranged inside the No. 2 internal threaded hole 57 and an external threaded structure arranged on the rod body of the No. 2 externally threaded rod 55, and the internal threaded structure matches the external threaded structure.

[0034] In order to reduce the error caused by gravity of the pre-tightening fabric clamping mechanism 4 located above, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 9 and Figure 10 , it is necessary to set up a gravity-type offsetting mechanism 6, which is internally provided with two fixed sleeves 63 fixedly installed on both sides of the pre-tightening fabric clamping mechanism 4, a rotating pulley 65 installed on the periphery of the two ends of the fixed sleeve 63 in a rotatable manner, and a connecting rope 66 that passes around the rotating pulley 65. It can exert an upward pulling force on the No. 1 connecting plate 44 located above, thereby offsetting the weight hanger 68 of the gravity of the pre-tightening fabric clamping mechanism 4 located above. The downward gravity of the four weight hangers 68 will generate an upward pulling force on the pre-tightening fabric clamping mechanism 4 located above. Since the sum of the gravity of the four weight hangers 68 is consistent with the overall gravity of one pre-tightening fabric clamping mechanism 4, the error caused by the gravity of the pre-tightening fabric clamping mechanism 4 located above is offset to improve the accuracy of the detection result.

[0035] For the specific structure of the gravity compensation mechanism 6, please refer to Figure 9 and Figure 10 , also includes two longitudinal support rods 61, the bottom ends of the longitudinal support rods 61 are fixedly installed on the upper surface of the support platform 1 through the No. 2 connecting plate 62, and the top of the longitudinal support rod 61 is fixedly installed with a fixed sleeve 63, and the sleeve hole of the fixed sleeve 63 is installed with a rotatable No. 3 rotating shaft 64 through a bearing, and a rotatable rotating wheel 65 is fixedly installed at both ends of the No. 3 rotating shaft 64, and a connecting rope 66 is placed on the upper half of each rotating wheel 65. The two connecting ropes 66 on the same side are fixedly installed with a No. 3 connecting plate 67 at the opposite ends, and the No. 3 connecting plate 67 is fixedly connected to the top of the No. 1 connecting plate 44, and the other end of the No. 1 connecting plate 44 is fixedly installed with a heavy object hanging object 68.

[0036] When in use, the pressure sensing piece 512 is connected to a display controller that can display the pressure value, and the four corners of the fabric are respectively clamped in the four fabric clamping grooves 411, and then an inflation device is used to fill the rated air pressure into each gas compensation channel 49. Under the gas pressure, the elastic air film 413 will expand, thereby clamping the fabric between the two expanded elastic air films 413, achieving the clamping effect of the fabric, and then the No. 1 external threaded rod 46 is rotated in a directional manner. Due to the threaded structure connection, the No. 1 external threaded rod 46 will drive the hollow sliding shell 48 to move until the fabric is in a straight state in the width direction, and the two synchronous motors 52 are started, thereby driving the No. 2 external threaded rod 55 to rotate in a directional manner. Due to the threaded structure connection, the threaded sleeve 56 will produce longitudinal movement, causing the threaded sleeve 56 to move upward. When the sliding contact ring 59 drives the pressure sensing piece 512 to contact the bottom of the limit sliding ring 513 , which will cause the limiting sliding ring 513 to drive the rectangular frame 41 above to move upward until the fabric is in a straight state in the length direction, and then observe the pressure on the pressure sensor plate 512 through the display controller. This pressure is the pulling force of the fabric at this time, which can intuitively reflect the elasticity of the fabric at this time, and then detect the elasticity of the fabric. When the elastic retention performance of the fabric needs to be tested, the outer coil spring 510 generates a rated elastic pressure on the sliding resistance ring 59 and the limiting sliding ring 513. This elastic pressure is the initial elastic pressure of the fabric. After a period of time, the elasticity of the fabric will decrease, and the outer coil spring 510 will be in an elastic compression state at all times, providing the necessary elastic force, causing the fabric to be stretched in the length direction. By observing the value corresponding to the pressure change of the display controller, it should be noted that the elastic pressure observed subsequently will definitely be less than the initial elastic pressure, and data related to the elastic retention performance can be obtained.

[0037] Among them, by comparing the elasticity of a known fabric under a rated tensile force and the duration of elasticity retention, it can be determined whether the stretched fabric meets the standards.

[0038] 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 device for testing the elasticity and elasticity retention performance of fabrics, comprising a support plate (1) with a bottom support base (2) mounted on the bottom, and two rotor mounting holes (3) symmetrically arranged in the support plate (1), characterized in that: Also includes, Two pre-tightened fabric clamping mechanisms (4), a rectangular frame (41) capable of longitudinally moving along the support plate (1), a hollow sliding shell (48) capable of horizontally moving along the rectangular frame (41), an elastic air film (413) capable of clamping the corners of the fabric, and a No. 1 external threaded rod (46) capable of driving the hollow sliding shell (48) to move horizontally along the rectangular frame (41) when rotating; And a movable limit elastic detection mechanism (5), which is provided with two rotatable No. 2 external threaded rods (55) and a No. 2 rotating shaft (516), a limit sliding ring (513) that can move along the axial direction of the No. 2 rotating shaft (516) and drive the rectangular frame (41) located above to move, a sliding contact ring (59) that can move along the axial direction of the No. 2 rotating shaft (516), and a pressure sensor (512) that can reflect the pressure value between the sliding contact ring (59) and the limit sliding ring (513).

2. The device for detecting elasticity and elasticity retention of fabric according to claim 1, characterized in that: The pre-tightened fabric clamping mechanism (4) also includes a longitudinal connecting rod (43), a component movable cavity (42) with open ends is provided at the center of the rectangular frame (41), and two hollow sliding shells (48) capable of moving along the length direction of the component movable cavity (42) are arranged inside the rectangular frame (41) located in the component movable cavity (42), and the rectangular frame (41) has a No. 1 internal threaded hole (45) on both sides, and a No. 1 external threaded rod (46) capable of rotating is installed inside each of the No. 1 internal threaded holes (45) through a No. 1 threaded structure, and the No. 1 external threaded rod (46) is provided with a No. 1 rotating shaft (47) with an integral structure at one end pointing to the hollow sliding shell (48), and the hollow sliding shell (48) is provided with a shaft body mounting groove (410) with an inner concave structure at the end facing the No. 1 rotating shaft (47), and the No. 1 internal threaded hole (45) is provided with a No. 1 rotating shaft (47) at the end facing the No. 1 rotating shaft (47). The shaft of the rotating shaft (47) is installed inside the shaft installation groove (410) through a bearing, and the two hollow sliding shells (48) are provided with a fabric clamping groove (411) with an inward concave structure on the opposite sides, and the interior of the hollow sliding shell (48) is provided with a gas compression chamber (412) with an open state on the opposite side, and the hollow sliding shell (48) is embedded with an elastic gas film (413) in a sealed edge at the open end of the gas compression chamber (412). One end face of the hollow sliding shell (48) is provided with a gas compensation channel (49) connected to the gas compression chamber (412) and equipped with a gas valve inside, and one end of the rectangular frame (41) is provided with a longitudinal connecting rod (43) with an integral structure therewith, and one end of the longitudinal connecting rod (43) is fixedly installed with a No. 1 connecting plate (44), and the No. 1 connecting plate (44) located at the lower end is fixedly installed on the upper surface of the support table (1).

3. The device for testing the elasticity and elasticity retention of fabric according to claim 2, characterized in that: The No. 1 thread structure comprises an internal thread structure arranged inside the No. 1 internal thread hole (45) and an external thread structure arranged on the rod body of the No. 1 external thread rod (46), and the internal thread structure matches the external thread structure.

4. The device for testing the elasticity and elasticity retention of fabric according to claim 3, characterized in that: The elastic air membrane (413) is made of a rubber material with an extensible function, and a closed area is formed between one side of the elastic air membrane (413) and the gas compression chamber (412).

5. The device for testing the elasticity and elasticity retention performance of fabric according to claim 4, characterized in that: The movable limiting elastic detection mechanism (5) also includes a horizontal connecting shaft (58), a motor fixed housing (51) is fixedly installed on the outside of the synchronous motor (52), the top of the motor fixed housing (51) is fixedly installed on the bottom surface of the support table (1), the rotor (53) of the synchronous motor (52) is fixedly installed in the rotor mounting hole (3) through a bearing, the top of the rotor (53) is fixedly installed with a longitudinal No. 2 external threaded rod (55) through a coupling (54), the top of the No. 2 external threaded rod (55) is provided with a limiting ring structure (511) with an integral structure, the top of the limiting ring structure (511) is provided with a No. 2 rotating shaft (516) with an integral structure, the top of the No. 2 rotating shaft (516) is fixedly installed with a top limiting plate (515), and the center of the threaded sleeve (56) is provided with a No. 2 threaded structure. A No. 2 internal threaded hole (57) is installed on the rod body of the No. 2 external threaded rod (55), and the two threaded sleeves (56) are fixedly connected by a horizontal connecting shaft (58). A sliding resistance ring (59) and a limit sliding ring (513) capable of axially moving along the No. 2 rotating shaft (516) are placed on the shaft body of the No. 2 rotating shaft (516), and the sliding resistance ring (59) is located directly below the limit sliding ring (513). A pressure sensor (512) is fixedly installed on the upper surface of the sliding resistance ring (59). The No. 2 external threaded rod (55) and the No. 2 rotating shaft (516) are provided with an external coil spring (510) on the outer periphery of the rod body and shaft body between the threaded sleeve (56) and the sliding resistance ring (59). A horizontal connecting rod (514) fixedly connected to the longitudinal connecting rod (43) located above is fixedly installed on the circumferential side of the limit sliding ring (513).

6. The device for testing the elasticity and elasticity retention of fabric according to claim 5, characterized in that: The second thread structure comprises an internal thread structure arranged inside the second internal thread hole (57) and an external thread structure arranged on the rod body of the second external thread rod (55), and the internal thread structure matches the external thread structure.

7. The device for testing the elasticity and elasticity retention of fabric according to claim 6, characterized in that: The pressure sensing piece (512) is connected to a display controller capable of displaying the pressure value, and the display controller has the function of recording relevant data.

8. The device for detecting elasticity and elasticity retention of fabric according to claim 7, characterized in that: The invention also includes a gravity-type offset mechanism (6), which is internally provided with two fixed sleeves (63) fixedly mounted on both sides of the pre-tightened fabric clamping mechanism (4), a rotating pulley (65) rotatably mounted on the periphery of both ends of the fixed sleeve (63), and a connecting rope (66) passing around the rotating pulley (65) that can exert an upward pulling force on the No. 1 connecting plate (44) located above, thereby offsetting the gravity of the pre-tightened fabric clamping mechanism (4) located above. A heavy object hanging object (68) 9. The device for testing elasticity and elasticity retention of fabric according to claim 8, characterized in that: The gravity-type offsetting mechanism (6) further comprises two longitudinal support rods (61), the bottom ends of the longitudinal support rods (61) being fixedly mounted on the upper surface of the support platform (1) via a second connecting plate (62), the top ends of the longitudinal support rods (61) being fixedly mounted with a fixed sleeve (63), the sleeve hole of the fixed sleeve (63) being mounted with a rotatable third rotating shaft (64) via a bearing, a rotatable rotating wheel (65) being fixedly mounted at each end of the third rotating shaft (64), a connecting rope (66) being placed on the upper half of each rotating wheel (65), and two connecting ropes (66) on the same side being fixedly mounted with a third connecting plate (67) at opposite ends, the third connecting plate (67) being fixedly connected to the top end of the first connecting plate (44), and a heavy object hanging object (68) being fixedly mounted at the other end of the first connecting plate (44).

10. The device for testing elasticity and elasticity retention of fabric according to claim 9, characterized in that: The sum of the gravity of the four weight hangers (68) is consistent with the overall gravity of one pre-tightened fabric clamping mechanism (4).

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