A tensile property testing device and testing method for stretch fabric production

Abstract

The application relates to the technical field of elastic cloth testing, in particular to a tensile property testing device and method for elastic cloth production, which comprises a device base, the top surface of the device base is fixedly connected with a mounting platform, the top surface of the mounting platform is fixedly connected with a rotating wheel support A, the top surface of the mounting platform is fixedly connected with a rotating wheel support B, the top surface of the mounting platform is fixedly connected with a stand support, the top surface of the mounting platform is fixedly connected with a roller support, the inner side surface of the roller support is rotationally connected with a conveying roller, the outer side surface of the rotating wheel support A is provided with a manual stretching mechanism, the top surface of the mounting platform is provided with a batch detection mechanism, and the top surface of the manual stretching mechanism is provided with a recovery detection mechanism. The pressure is applied by the jacking cone when the elastic cloth is wound, the breaking position of the elastic cloth can be actively selected, the pressure is applied to the elastic cloth at both ends and the middle at the same time, the breaking limit can be obtained more quickly, and the winding turns are reduced.

Description

Technical Field

[0001] This invention relates to the field of elastic fabric performance testing technology, specifically to a tensile performance testing device and method for elastic fabric production. Background Technology

[0002] Performance testing of elastic fabrics is a crucial step in ensuring fabric quality and functionality. This test primarily evaluates the elastic fabric's performance in terms of tensile strength, resilience, and durability. By simulating real-world usage scenarios, testers can accurately determine the deformation and recovery capabilities of the elastic fabric under different stresses, thereby assessing whether it meets specific application requirements. Furthermore, durability testing reflects the stability of the elastic fabric during long-term use, providing consumers with reliable quality assurance.

[0003] Currently, tensile tests are commonly used to test the performance of elastic fabrics.

[0004] An existing patent (publication number: CN221840856U) discloses a stretching device for processing elastic fabric, including a support platform. Mounting frames are provided at both ends of the upper middle position of the support platform, and the mounting frames are fixedly connected to the support platform. The device also includes a second sliding groove disposed inside the mounting frames. A fixing block is disposed inside the second sliding groove, and a measuring cavity is disposed inside the fixing block. A fixing rod is disposed inside the measuring cavity, and a roller is disposed outside the fixing rod, with the roller fixedly connected to the fixing rod. Mounting blocks are provided above both sides of the support platform. In this device, it may be difficult to simultaneously apply pressure to both ends and the middle of the elastic fabric. This limits the testing speed, increases the number of winding turns or the stretching length of the stretching device, reduces testing efficiency, and may make it difficult to actively select the breakage location of the elastic fabric, leading to uncontrollable test results and making it impossible to specifically test the breaking strength of a particular area.

[0005] In view of this, we propose a tensile property testing device and testing method for elastic fabric production. Summary of the Invention

[0006] The purpose of this invention is to provide a tensile performance testing device and method for elastic fabric production, to solve the problems mentioned in the background art regarding existing elastic fabric testing devices, which have the drawbacks of being difficult to simultaneously apply pressure to both ends and the middle of the elastic fabric. This limits the testing speed, increases the number of winding turns or the stretching length of the stretching equipment, reduces testing efficiency, and makes it difficult to actively select the fracture location of the elastic fabric, leading to uncontrollable test results and the inability to specifically test the fracture strength of a specific area. To achieve the above objective, this invention provides the following technical solution: a tensile performance testing device and method for elastic fabric production, comprising a device base, an installation platform fixedly connected to the top surface of the device base, a rotating wheel bracket A fixedly connected to the top surface of the installation platform, a rotating wheel bracket B fixedly connected to the top surface of the installation platform, a column bracket fixedly connected to the top surface of the installation platform, a roller bracket fixedly connected to the top surface of the installation platform, a conveying roller rotatably connected to the inner surface of the roller bracket, a manual stretching mechanism provided on the outer surface of the rotating wheel bracket A, a batch detection mechanism provided on the top surface of the installation platform, and a recovery detection mechanism provided on the top surface of the manual stretching mechanism.

[0007] There are two wheel supports A, and the two wheel supports A are symmetrically distributed about the central axis of the installation platform. There are also two column supports.

[0008] Preferably, the manual stretching mechanism includes a fixed clamping plate, which is fixedly connected to the outer surface of the rotating wheel bracket A. A movable clamping plate is slidably connected to the outer surface of the fixed clamping plate. A connecting bolt is fixedly connected to the outer surface of the fixed clamping plate, and a fastening nut is threaded onto the outer surface of the connecting bolt. A driving rotating wheel is rotatably connected to the inner surface of the rotating wheel bracket A. A manual crank is rotatably connected to one side surface of the rotating wheel bracket A. A driven rotating wheel is rotatably connected to the inner surface of the rotating wheel bracket A on the other side of the mounting platform. A winding rotating wheel is rotatably connected to the inner surface of the rotating wheel bracket B, and a positioning device is fixedly connected to one end of the winding rotating wheel. The ratchet has a control pawl engaged on its outer surface, and a pawl actuating post fixedly connected to the outer surface of the control pawl. Both ends of the winding wheel are fixedly connected to lifting cams. A driven movement groove is formed on the outer surface of the wheel bracket B. A driven linear actuator is slidably connected to the top surface of the lifting cam. A lifting platform is fixedly connected to the outer surface of the driven linear actuator. A limiting column is fixedly connected to the outer surface of the lifting platform. A column limiting groove is fixedly connected to the outer surface of the wheel bracket B. A counting scale is fixedly connected to the outer surface of the column limiting groove. A lifting cone is fixedly connected to the inner surface of the lifting platform.

[0009] Preferably, there are three fixed clamping plates, two of which are symmetrically distributed on the outer surface of the driving wheel. There are two connecting bolts on each fixed clamping plate, symmetrically distributed about the central axis of the clamping plate. The connecting bolts penetrate the movable clamping plate. The fastening nuts are slidably connected to the outer surface of the movable clamping plate. The manual crank penetrates the wheel bracket A and is fixedly connected to the driving wheel. The pawl actuating post penetrates the wheel bracket B and is rotatably connected to its inner wall. There are two driven linear actuators, symmetrically distributed about the central axis of the wheel bracket B. The driven linear actuators are slidably connected to the inner surface of the driven moving groove. There are four limiting posts and four post limiting grooves, symmetrically distributed about the central axis of the wheel bracket B. The limiting posts are slidably connected to the inner surface of the post limiting grooves. The surface of the lifting cam is a constant-velocity spiral.

[0010] Preferably, the batch testing mechanism includes a motor bracket, which is fixedly connected to the top surface of the mounting platform. A drive motor is fixedly connected to the inner surface of the motor bracket, and an active turntable is fixedly connected to the output end of the drive motor. A toggle mounting groove is provided on the outer surface of the active turntable, and a scale is fixedly connected to the outer surface of the active turntable. A small-diameter bolt is slidably connected to the inner surface of the toggle mounting groove, and a small-diameter nut is threadedly connected to the outer surface of the small-diameter bolt. A fastening sleeve is fixedly connected to one end of the small-diameter nut, and a direct-acting housing is slidably connected to the outer surface of the fastening sleeve. A rack and pinion connecting frame is fixedly connected to the outer surface of the direct-acting housing, and a reciprocating rack is fixedly connected to one end of the rack and pinion connecting frame. A direct-acting limit post is fixedly connected to the top surface of the column bracket, and a driven gear meshes with the outer surface of the reciprocating rack.

[0011] Preferably, the small-diameter bolt passes through the actuating mounting groove and the direct-acting housing, the fastening sleeve is slidably connected to the outer surface of the active turntable, there are two direct-acting limiting posts, and the two direct-acting limiting posts are symmetrically distributed about the central axis of the direct-acting housing. The direct-acting limiting posts pass through the direct-acting housing and are slidably connected to its inner wall. The driven gear is fixedly connected to the end of the active turntable away from the manual crank.

[0012] Preferably, the restoration detection mechanism includes a rotating base, which is rotatably connected to the top surface of the rising platform. A rotation limiting groove is slidably connected to the outer surface of the rotating base. Transverse slide rails are fixedly connected to both sides of the rotating base. An ink pad platform is slidably connected to the inner surface of the transverse slide rails. A top bracket is fixedly connected to the top surface of the rotating base. An installation shaft is fixedly connected to the outer surface of the top bracket. A pressing platform is slidably connected to the outer surface of the installation shaft. A linkage hinge rod is hinged to the outer surface of the pressing platform. An impression roller is rotatably connected to the bottom surface of the pressing platform. A pressing limiting groove is formed on the outer surface of the pressing platform. A spring mounting post is fixedly connected to the inner surface of the pressing limiting groove. A return spring is sleeved on the outer surface of the spring mounting post.

[0013] Preferably, the rotation limiting groove is formed on the top surface of the rising platform; there are two ink pad platforms, which are symmetrically distributed about the central axis of the rotating base; there are two impression rollers, which are also symmetrically distributed about the central axis of the rotating base; the top surface of the ink pad platform is slidably connected to the outer surface of the impression roller; there are two linkage hinge rods, and both ends of the two linkage hinge rods are respectively hinged to the ink pad platform and the lower pressing platform; the mounting shaft passes through the lower pressing platform through the lower pressing limiting groove; the spring mounting post passes through the mounting shaft and is slidably connected to its inner wall; and both ends of the return spring are slidably connected to the lower pressing limiting groove and the outer surface of the mounting shaft, respectively.

[0014] A testing method for a tensile properties testing device used in the production of elastic fabric includes the following steps:

[0015] S1. Place one end of the elastic cloth to be tested between the fixed clamping plate and the movable clamping plate on the driving wheel, and tighten the connecting bolt to clamp that end of the elastic cloth. Wrap the other end around the surface of the driven wheel and then around the winding wheel once. Place it between the fixed clamping plate and the movable clamping plate on the wheel bracket B and tighten the connecting bolt to clamp it.

[0016] S2. Manually rotate the manual crank to drive the active rotating wheel to rotate. The active rotating wheel gradually winds up the elastic cloth and stretches it, and drives the winding rotating wheel to rotate. This causes the lifting cams on both sides to lift the driven linear rod and the rising platform. The lifting cone lifts the elastic cloth above and applies concentrated force to the elastic cloth until the elastic cloth breaks at the lifting cone. When it breaks, it no longer stretches the elastic cloth. The lifting cam stops rotating and the rising platform immediately stops rising. Through the action of the positioning ratchet, the lifting cam cannot reverse, and the rising platform will stop at the current position. At this time, according to the position of the limit column on the counter scale on the column limit groove, the height of the rising platform when the elastic cloth breaks can be obtained, and the tensile properties of the elastic cloth can be obtained.

[0017] S3. After manually detecting the tensile limit of the elastic fabric, adjust the position of the linear housing on the drive turntable using a ruler so that the rotation angle of the driven gear does not exceed the rotation angle that would cause the elastic fabric to break after being stretched due to the rotation of the drive wheel. Start the drive motor. When the drive turntable rotates, it will push and pull the linear housing, causing vertical reciprocating movement. The stroke of the reciprocating linear movement is determined by the position of the linear housing on the drive turntable. Through the rack and pinion connecting frame, the reciprocating rack reciprocates and meshes with the driven gear, thus changing the uniform rotation of the drive turntable into the reciprocating rotation of the drive wheel with a changeable rotation angle. The elastic fabric will be stretched and then the drive wheel will return to its original state.

[0018] S4. Rotate the base until it aligns with the rising platform, press down the pressing platform and drive the imprinting roller to press down. At the same time, the linkage hinge rod on the outside of the pressing platform will push the ink pad platform to both sides within the horizontal slide rail. Initially, the imprinting roller is still in contact with the ink pad platform. The imprinting roller will first pick up the ink on the ink pad platform and continue to descend until the imprinting roller contacts the installed elastic cloth, leaving two imprints on the surface of the elastic cloth. After the elastic cloth is stretched or fatigued, check whether the distance between the two imprints matches the distance between the imprinting rollers to obtain the recovery status of the elastic cloth after stretching.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In this invention, the tensile properties of the elastic fabric are obtained by setting a manual stretching mechanism. By applying pressure to the elastic fabric during winding with a lifting cone, the breaking position of the elastic fabric can be actively selected. Furthermore, applying pressure to the elastic fabric at both ends and the middle at the same time can achieve the breaking limit more quickly and reduce the number of winding turns.

[0021] In this invention, by setting up a batch testing mechanism, the working process of the manual stretching mechanism can be automatically simulated by a motor, and the stretching limit can be customized. This is used for batch testing of the same batch of elastic fabrics after manually testing the tensile properties of the elastic fabric. Furthermore, the reciprocating rotation of the active rotating wheel will repeatedly stretch and restore the elastic fabric, which can also be used to test the fatigue strength of the elastic fabric.

[0022] In this invention, by setting up a recovery detection mechanism, two imprints are left on the surface of the elastic fabric. After the stretching or fatigue test of the elastic fabric is completed, the distance between the two imprints is checked to see if it matches the distance of the imprinting roller, so as to obtain the recovery status of the elastic fabric after stretching. Attached Figure Description

[0023] Figure 1 This is a side view of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the cooperative structure of the rotating wheel bracket A, the movable clamping plate, and the active rotating wheel of the present invention;

[0025] Figure 3 This is an exploded view of the active rotating wheel, the movable clamping plate, and the movable clamping plate of the present invention;

[0026] Figure 4 This is an exploded view of the rotating wheel support B and the winding rotating wheel lifting platform of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 This is a schematic diagram of the working structure of the active rotating wheel, positioning ratchet, and lifting cam of the present invention.

[0029] Figure 7 This is a schematic diagram of the interoperability of the various components of the batch testing mechanism of the present invention;

[0030] Figure 8 This is an exploded view of the components of the batch testing mechanism of the present invention;

[0031] Figure 9 This is a schematic diagram of the cooperative structure of the active turntable, fastening sleeve and direct-moving housing of the present invention.

[0032] Figure 10 This is a schematic diagram of the interlocking structure of the direct-acting housing, rack connecting frame, and reciprocating rack of the present invention;

[0033] Figure 11 This is a schematic diagram of the interoperability of the components of the restoration detection mechanism of the present invention;

[0034] Figure 12 This is a schematic diagram of the interaction structure of the pressing platform, the linkage hinge rod, and the ink pad platform of the present invention.

[0035] Figure 13 For the present invention Figure 12 Enlarged view at point B in the middle;

[0036] Figure 14 This is a schematic diagram of the interaction between the pressure platform, the ink pad platform, and the impression roller brush of the present invention.

[0037] Figure 15 This is a schematic diagram of the interaction structure of the rising platform, rotating base, and rotating limiting groove of the present invention.

[0038] In the diagram: 1. Device base; 2. Mounting platform; 21. Rotary wheel bracket A; 22. Rotary wheel bracket B; 23. Column bracket; 24. Roller bracket; 25. Conveyor roller; 3. Manual tensioning mechanism; 31. Fixed clamping plate; 311. Movable clamping plate; 312. Connecting bolt; 3121. Fastening nut; 32. Driving rotary wheel; 321. Manual crank; 322. Driven rotary wheel; 33. Winding rotary wheel; 331. Positioning ratchet; 3311. Control pawl; 3312. Pawl actuating column; 34. Lifting cam; 341. Driven moving slot; 342. Driven linear rod; 35. Lifting platform; 351. Limiting column; 352. Column limiting slot; 353. Counting scale; 36. Lifting cone; 4 41. Batch inspection mechanism; 42. Motor bracket; 43. Drive motor; 44. Active turntable; 45. Actuating mounting slot; 46. Scale; 47. Small diameter bolt; 48. Small diameter nut; 49. Fastening sleeve; 40. Direct-acting housing; 41. Rack and pinion connecting frame; 42. Reciprocating rack; 43. Direct-acting limit post; 44. Driven gear; 55. Restoration inspection mechanism; 51. Rotating base; 52. Rotating limit groove; 53. Transverse slide rail; 54. Ink pad platform; 55. Top bracket; 56. Mounting shaft; 57. Pressing platform; 58. Linkage hinge rod; 59. Imprinting roller brush; 50. Pressing limit groove; 51. Spring mounting post; 52. Return spring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1 to 15This invention provides a technical solution: a tensile performance testing device and method for elastic fabric production, comprising a device base 1, an installation platform 2 fixedly connected to the top surface of the device base 1, a rotating wheel bracket A21 fixedly connected to the top surface of the installation platform 2, a rotating wheel bracket B22 fixedly connected to the top surface of the installation platform 2, a column bracket 23 fixedly connected to the top surface of the installation platform 2, and a roller bracket 24 fixedly connected to the top surface of the installation platform 2. A conveyor roller 25 is rotatably connected to the inner surface of the roller bracket 24. The outer surface of the device is provided with a manual stretching mechanism 3, the top surface of the mounting platform 2 is provided with a batch inspection mechanism 4, the top surface of the manual stretching mechanism 3 is provided with a recovery inspection mechanism 5, the device base 1 and the mounting platform 2 provide a platform for installing various components, the rotating wheel bracket A21 and the rotating wheel bracket B22 are used to install the active rotating wheel 32, the driven rotating wheel 322 and the winding rotating wheel 33 on the manual stretching mechanism 3, the column bracket 23 is equipped with a linear limit column 45, and the roller bracket 24 is equipped with multiple rotatable conveying rollers 25, which provide support when the elastic cloth to be inspected is placed on the surface, and reduce the friction generated when the elastic cloth moves on the surface by sliding;

[0041] There are two wheel brackets A21, and the two wheel brackets A21 are symmetrically distributed about the central axis of the mounting platform 2. There are two column brackets 23.

[0042] The manual tensioning mechanism 3 includes a fixed clamping plate 31, which is fixedly connected to the outer surface of the rotating wheel bracket A21. A movable clamping plate 311 is slidably connected to the outer surface of the fixed clamping plate 31. A connecting bolt 312 is fixedly connected to the outer surface of the fixed clamping plate 31, and a fastening nut 3121 is threaded onto the outer surface of the connecting bolt 312. A driving rotating wheel 32 is rotatably connected to the inner surface of the rotating wheel bracket A21. A manual crank 321 is rotatably connected to one side surface of the rotating wheel bracket A21. A driven rotating wheel 322 is rotatably connected to the inner surface of the rotating wheel bracket A21 on the other side of the mounting platform 2. A winding rotating wheel 33 is rotatably connected to the inner surface of the rotating wheel bracket B22. A positioning ratchet 331 is fixedly connected to one end of the winding rotating wheel 33. A control pawl 3311 engages on the outer surface of wheel 331. A pawl actuating post 3312 is fixedly connected to the outer surface of the control pawl 3311. Lifting cams 34 are fixedly connected to both ends of the winding wheel 33. A driven moving groove 341 is provided on the outer surface of the wheel bracket B22. A driven linear rod 342 is slidably connected to the top surface of the lifting cam 34. A lifting platform 35 is fixedly connected to the outer surface of the driven linear rod 342. A limiting post 351 is fixedly connected to the outer surface of the lifting platform 35. A post limiting groove 352 is fixedly connected to the outer surface of the wheel bracket B22. A counting scale 353 is fixedly connected to the outer surface of the post limiting groove 352. A lifting cone 36 is fixedly connected to the inner surface of the lifting platform 35. The lifting platform 35 is then connected to a manual stretching machine. In the configuration of structure 3, during use, the fixed clamping plate 31 is connected to the movable clamping plate 311 via connecting bolts 312, and the movable clamping plate 311 is tightened by tightening the fastening nut 3121 to bring it closer to the fixed clamping plate 31 to reduce the gap. One end of the elastic cloth to be tested is placed between the fixed clamping plate 31 and the movable clamping plate 311 for clamping. One set of fixed clamping plates 31 and movable clamping plates 311 is installed on the rotating wheel bracket A21, and the position of the elastic cloth at this end remains unchanged. The elastic cloth is passed through the winding wheel 33 from the bottom and wound around the winding wheel 33 once, and then continues to pass around the driven wheel 322. The other end is clamped between the fixed clamping plate 31 and the movable clamping plate 311 on the driving wheel 32 for rotation and winding to test the tensile properties. When both ends of the elastic cloth are clamped and are in a position where... In the taut state, the lifting cam 34 is in its initial position. The driving wheel 32 is rotated via the manual crank 321, gradually winding and stretching the elastic cloth. One end of the elastic cloth is fixed while the other is wound up, and the extended portion of the cloth is wound, transmitting power along the driving wheel 32 and causing the winding wheel 33 to rotate. During rotation, the winding wheel 33 drives the lifting cams 34 on both sides to rotate. The outer contour of the lifting cam 34 is a constant-speed spiral shape and is in contact with the driven linear rod 342. Utilizing the proportional relationship between the constant-speed spiral rotation angle and radius, the driven linear rod 342 continuously lifts the lifting platform 35 as the lifting cam 34 rotates, causing the lifting cone 36 to lift the elastic cloth above, concentrating force on the elastic cloth.The elastic fabric continues to rise until it breaks at the lifting cone 36. Once broken, the elastic fabric is no longer stretched, the lifting cam 34 stops rotating, and the rising platform 35 immediately stops rising. Because a positioning ratchet 331 is installed at one end of the winding wheel 33, the ratchet 331 is engaged by the controlled pawl 3311, preventing the lifting cam 34 from reversing. The rising platform 35 will stop at its current position. The rising platform 35's rising path is restricted by the limiting column 351 and the column limiting groove 352. The height of the rising platform 35 at the point of breakage can be determined based on the position of the limiting column 351 on the column limiting groove 352 using the counter 353, thus obtaining the tensile properties of the elastic fabric. By applying pressure during winding of the elastic fabric using the lifting cone 36, the breakage point of the elastic fabric can be actively selected. Applying pressure simultaneously at both ends and in the middle allows for faster attainment of the breakage limit and reduces the number of winding turns. After the test is completed, the pawl is moved to release the positioning ratchet 331, causing the rising platform 35 to descend and reset.

[0043] There are three fixed clamping plates 31, two of which are symmetrically distributed on the outer surface of the driving wheel 32. Two connecting bolts 312 are placed on each fixed clamping plate 31, symmetrically distributed about the central axis of the fixed clamping plate 31. The connecting bolts 312 penetrate the movable clamping plate 311. A fastening nut 3121 is slidably connected to the outer surface of the movable clamping plate 311. A manual crank 321 penetrates the wheel bracket A21 and is fixedly connected to the driving wheel 32. A pawl actuating post 3312 penetrates the wheel bracket B22 and is rotatably connected to its inner wall. There are two driven linear actuators 342, symmetrically distributed about the central axis of the wheel bracket B22. The driven linear actuators 342 are slidably connected to the inner surface of the driven moving groove 341. There are four limiting posts 351 and four post limiting grooves 352. The column 351 and the four column limiting grooves 352 are symmetrically distributed with the central axis of the rotating bracket B22 as the axis of symmetry. The limiting column 351 is slidably connected to the inner surface of the column limiting groove 352. The surface of the lifting cam 34 is a constant velocity spiral. The fixed clamping plate 31 and the movable clamping plate 311 clamp the two ends of the elastic cloth respectively. The distance between the fixed clamping plate 31 and the movable clamping plate 311 is adjusted by the connecting bolt 312 and the fastening nut 3121 to clamp the elastic cloth. The manual crank 321 drives the active rotating wheel 32 to rotate, which is used to obtain the tensile limit of the elastic cloth to be tested according to the number of rotations. The driven linear rod 342 moves in the driven moving groove 341 to limit the rising path of the lifting platform 35 so that its vertical rising position will not be deviated. By utilizing the proportional relationship between the angle and radius of the lifting cam 34, the rotation angle of the lifting cam 34 is also proportional to the rising height of the lifting platform 35 to facilitate conversion.

[0044] The batch testing mechanism 4 includes a motor bracket 41, which is fixedly connected to the top surface of the mounting platform 2. A drive motor 42 is fixedly connected to the inner surface of the motor bracket 41. An active turntable 43 is fixedly connected to the output end of the drive motor 42. A toggle mounting groove 431 is provided on the outer surface of the active turntable 43. A scale 432 is fixedly connected to the outer surface of the active turntable 43. A small-diameter bolt 433 is slidably connected to the inner surface of the toggle mounting groove 431. A small-diameter nut 4331 is threadedly connected to the outer surface of the small-diameter bolt 433. One end of the small-diameter nut 4331 is fixed... A fastening sleeve 4332 is fixedly connected to the outer surface of the fastening sleeve 4332, and a linear housing 44 is slidably connected to the outer surface of the linear housing 44. A rack connecting frame 441 is fixedly connected to the outer surface of the rack connecting frame 441, and a reciprocating rack 442 is fixedly connected to one end of the rack connecting frame 441. A linear limiting post 45 is fixedly connected to the top surface of the column bracket 23, and a driven gear 46 meshes with the outer surface of the reciprocating rack 442. Through the setting of the batch inspection mechanism 4, during use, when the drive motor 42 drives the active turntable 43 to rotate, it will push and pull the linear housing 44, causing it to move on the linear limiting post 45. The reciprocating linear motion is determined by the position of the linear motion housing 44 to the center of the drive turntable 43. During the reciprocating linear motion of the linear motion housing 44, the reciprocating rack 442 is driven to reciprocate linearly through the rack and pinion connecting frame 441, and meshes with the driven gear 46. The driven gear 46 is fixedly connected to the drive turntable 32, thereby changing the uniform rotation of the drive turntable 43 into the reciprocating rotation of the drive turntable 32, which can change the rotation angle. When the manual stretching mechanism 3 determines the stretching limit of the elastic cloth, the position of the linear motion housing 44 on the drive turntable 43 is adjusted by the scale 432, so that it drives the drive turntable 442 to reciprocate linearly. The rotation angle of the moving gear 46 does not exceed the rotation angle at which the elastic cloth breaks after being stretched due to the rotation and winding of the drive wheel 32. At this time, after starting the drive motor 42, the angle of the reciprocating rotation of the drive wheel 32 is fixed. When the new elastic cloth is installed on the device and started, the new elastic cloth will be stretched and the drive wheel 32 will recover. If the elastic cloth's tensile properties are the same as those during manual testing, it will not break. This is used for batch testing of the same batch of elastic cloth after manually testing its tensile properties. The reciprocating rotation of the drive wheel 32 will stretch and recover the elastic cloth, which can also be used to test the fatigue strength of the elastic cloth.

[0045] The small-diameter bolt 433 passes through the actuation mounting groove 431 and the direct-acting housing 44. The fastening sleeve 4332 is slidably connected to the outer surface of the drive turntable 43. There are two direct-acting limit posts 45, which are symmetrically distributed about the central axis of the direct-acting housing 44. The direct-acting limit posts 45 pass through the direct-acting housing 44 and are slidably connected to its inner wall. The driven gear 46 is fixedly connected to the end of the drive wheel 32 away from the manual crank 321. The small-diameter bolt 433 passes through the actuation mounting groove 431 on the drive turntable 43 and the direct-acting housing 44. When the small-diameter nut 4331 is tightened, the fastening sleeve 4332 and the small-diameter bolt 433 will be clamped on the drive turntable 43. Since it is a bolted connection, it is easy to disassemble and adjust the position. After being fixed, the direct-acting housing 44 can rotate on the fastening sleeve 4332 but its position remains unchanged. In this way, the active turntable 43 can move the direct-acting housing 44 through the small-diameter bolt 433, and the direct-acting housing 44 can achieve reciprocating up and down linear motion by being limited by the direct-acting limit posts 45 on both sides. This drives the active rotating wheel 32 to reciprocate forward and reverse through the reciprocating rack 442. When using the manual tensioning mechanism 3, the reciprocating rack 442 needs to be lifted upwards so that the part of the reciprocating rack 442 without tooth grooves at the bottom contacts the driven gear 46. This ensures that when manually controlled, the rotation of the driven gear 46 will not drive the reciprocating rack 442 to move up and down. The reciprocating rack 442 has a certain friction with the inner wall and will not slide down due to gravity when not affected by external forces, thus maintaining its current state.

[0046] The restoration testing mechanism 5 includes a rotating base 51, which is rotatably connected to the top surface of the rising platform 35. A rotation limiting groove 511 is slidably connected to the outer surface of the rotating base 51. Transverse slide rails 52 are fixedly connected to both sides of the rotating base 51. An ink pad platform 53 is slidably connected to the inner surface of the transverse slide rails 52. A top support 54 is fixedly connected to the top surface of the rotating base 51. A mounting shaft 541 is fixedly connected to the outer surface of the top support 54. A pressing platform 55 is slidably connected to the outer surface of the mounting shaft 541. A hinged connection is made to the outer surface of the pressing platform 55. A linkage hinge rod 551 is connected to the bottom surface of the pressing platform 55, and an embossing roller brush 552 is rotatably connected to it. A pressing limit groove 553 is formed on the outer surface of the pressing platform 55, and a spring mounting post 5531 is fixedly connected to the inner surface of the pressing limit groove 553. A return spring 5532 is sleeved on the outer surface of the spring mounting post 5531. Through the setting of the recovery detection mechanism 5, during use, the rotating base 51 can rotate on the rising platform 35, but its rotation path is restricted by the rotation limit groove 511. When it rotates towards the rising platform 35 and reaches its limit position, the rotating base 51... Aligned with the rising platform 35, the impression roller 552 is perpendicular to the rising platform 35. When not in use, it can be rotated out to prevent it from affecting the movement path of the lifting cone 36. Before stretching or batch testing the elastic cloth, press down the pressing platform 55 to move it on the mounting shaft 541. The pressing platform 55 drives the impression roller 552 to press down. At the same time, the linkage hinge rod 551 on the outside of the pressing platform 55 will push the ink pad platform 53 to both sides within the transverse slide rail 52 to maintain transverse movement and prevent it from affecting the descent path of the impression roller 552. Initially, the impression roller 552 is still in contact with the ink pad platform 53. The impression roller 552 and the ink pad platform 53 are both made of soft materials. They approach each other and are squeezed, causing the impression roller 552 to pick up ink from the ink pad platform 53 until the impression roller 552 contacts the installed elastic cloth, leaving two marks on the surface of the elastic cloth. At this time, the lower pressure platform 55 is released, and under the action of the return spring 5532, the lower pressure platform 55 is lifted and reset. Since the spacing of the impression roller 552 is fixed, after the stretching or fatigue test of the elastic cloth is completed, the spacing of the two marks is checked to see if it matches the spacing of the impression roller 552, so as to obtain the recovery status of the elastic cloth after stretching.

[0047] A rotation limiting groove 511 is formed on the top surface of the rising platform 35. There are two ink pad platforms 53, symmetrically distributed about the central axis of the rotating base 51. There are also two impression rollers 552, symmetrically distributed about the central axis of the rotating base 51. The top surface of the ink pad platform 53 is slidably connected to the outer surface of the impression roller 552. There are two linkage hinge rods 551, with both ends of each linkage hinge rod 551 hinged to the ink pad platform 53 and the lower pressing platform 55, respectively. The mounting shaft 541 passes through the lower pressing limiting groove 55. 3. A spring mounting post 5531 passes through the pressing platform 55 and is slidably connected to the inner wall of the mounting shaft 541. The two ends of the return spring 5532 are slidably connected to the pressing limit groove 553 and the outer surface of the mounting shaft 541, respectively. The rotation limit groove 511 is used to limit the rotation range of the rotating base 51. Two ink pad platforms 53 are set to measure the spacing of the left imprints. The pressing roller brush 552 rolls on the surface of the ink pad platform 53 and presses down to achieve ink application. The symmetrical linkage hinge rod 551 pushes the ink pad platforms 53 on both sides. The pressing platform 55 moves on the mounting shaft 541 and is reset by the return spring 5532.

[0048] In this embodiment, as Figure 1 , Figure 2 As shown, the device base 1 and the mounting platform 2 provide a platform for mounting various components. The wheel bracket A21 and the wheel bracket B22 are used to mount the driving wheel 32, the driven wheel 322 and the winding wheel 33 on the manual tensioning mechanism 3.

[0049] In this embodiment, as Figure 3 , Figure 4 As shown, place one end of the elastic cloth to be tested between the fixed clamping plate 31 and the movable clamping plate 311 on the active rotating wheel 32, and tighten the connecting bolt 312 to clamp that end of the elastic cloth. The other end wraps around the surface of the driven rotating wheel 322 and around the winding rotating wheel 33 once, and then places it between the fixed clamping plate 31 and the movable clamping plate 311 on the rotating wheel bracket B22 and tightens the connecting bolt 312 to clamp it.

[0050] In this embodiment, as Figure 5 , Figure 6 As shown, during the rotation of the winding wheel 33, it will drive the lifting cams 34 on both sides to rotate and contact the driven linear rod 342. This causes the driven linear rod 342 to continuously lift the lifting platform 35 when the lifting cam 34 rotates. The driven linear rod 342 moves in the driven moving groove 341 and together with the limiting column 351 and the column limiting groove 352, it restricts the upward path of the lifting platform 35.

[0051] In this embodiment, as Figure 7 , Figure 8 , Figure 10As shown, when the drive motor 42 drives the active turntable 43 to rotate, it pushes and pulls the linear motion housing 44, changing the uniform rotation of the active turntable 43 into the reciprocating rotation of the active wheel 32 with a changeable rotation angle. The reciprocating rack 442 is driven to reciprocate linearly through the rack and pinion connecting frame 441 and meshes with the driven gear 46. The driven gear 46 is fixedly connected to the active wheel 32, thereby changing the uniform rotation of the active turntable 43 into the reciprocating rotation of the active wheel 32 with a changeable rotation angle. The angle of the reciprocating rotation of the active wheel 32 can be adjusted by the position of the linear motion housing 44 on the active turntable 43.

[0052] In this embodiment, as Figure 9 As shown, the small diameter bolt 433 passes through the actuation mounting groove 431 on the active turntable 43 and the direct drive housing 44. When the small diameter nut 4331 is tightened, the fastening sleeve 4332 and the small diameter bolt 433 will be clamped on the active turntable 43. Since it is a bolted connection, it is easy to disassemble and adjust the position. When the position is fixed, the direct drive housing 44 can rotate on the fastening sleeve 4332 but the position remains unchanged. In this way, the active turntable 43 can actuate the direct drive housing 44 through the small diameter bolt 433.

[0053] In this embodiment, as Figure 11 , Figure 12 , Figure 14 As shown, pressing down the pressing platform 55 moves it on the mounting shaft 541. The pressing platform 55 drives the impression roller 552 to press down. At the same time, the linkage hinge rod 551 on the outside of the pressing platform 55 will push the ink pad platform 53 to both sides in the transverse slide rail 52 to maintain transverse movement and prevent it from affecting the downward path of the impression roller 552.

[0054] In this embodiment, as Figure 13 As shown, the pressing platform 55 is pressed down to move on the mounting shaft 541. After being released, the pressing platform 55 is lifted up and reset on the mounting shaft 541 under the action of the reset spring 5532.

[0055] In this embodiment, as Figure 15 As shown, the rotating base 51 can rotate on the rising platform 35, but its rotation path is restricted by the rotation limit groove 511. When not in use, it can be rotated out to prevent affecting the movement path of the lifting cone 36.

[0056] A testing method for a tensile properties testing device used in the production of elastic fabric includes the following steps:

[0057] S1. Place one end of the elastic cloth to be tested between the fixed clamping plate 31 and the movable clamping plate 311 on the active rotating wheel 32, and tighten the connecting bolt 312 to clamp that end of the elastic cloth. The other end is wrapped around the surface of the driven rotating wheel 322 and then wrapped around the winding wheel 33 once. After that, it is placed between the fixed clamping plate 31 and the movable clamping plate 311 on the rotating wheel bracket B22 and the connecting bolt 312 is tightened to clamp it.

[0058] S2. Manually rotate the manual crank 321 to drive the active rotating wheel 32 to rotate. The active rotating wheel 32 gradually winds up the elastic cloth and stretches it, and drives the winding wheel 33 to rotate. This causes the lifting cams 34 on both sides to lift the driven linear rod 342 and the rising platform 35. The lifting cone 36 lifts the elastic cloth above and applies concentrated force to the elastic cloth until the elastic cloth breaks at the lifting cone 36. When it breaks, it no longer stretches the elastic cloth. The lifting cam 34 stops rotating and the rising platform 35 immediately stops rising. The lifting cam 34 cannot reverse due to the action of the positioning ratchet 331. The rising platform 35 will stop at the current position. At this time, according to the position of the limit column 351 on the column limit groove 352 of the counting scale 353, the height of the rising platform 35 when the elastic cloth breaks can be obtained, and the tensile properties of the elastic cloth can be obtained.

[0059] S3. After manually detecting the tensile limit of the elastic fabric, adjust the position of the linear housing 44 on the drive turntable 43 using the scale 432, so that the rotation angle of the driven gear 46 driven by it does not exceed the rotation angle that would cause the elastic fabric to break after being stretched due to the rotation of the drive wheel 32. Start the drive motor 42. When the drive turntable 43 rotates, it will push and pull the linear housing 44 to make vertical reciprocating movement. The reciprocating linear stroke is determined by the position of the linear housing 44 on the drive turntable 43. The rack and pinion frame 441 drives the reciprocating rack 442 to reciprocate linearly mesh with the driven gear 46, thereby changing the uniform rotation of the drive turntable 43 into the reciprocating rotation of the drive wheel 32 with a changeable rotation angle. The elastic fabric will be stretched and then the drive wheel 32 will return to its original state.

[0060] S4. Rotate the rotating base 51 until it is aligned with the rising platform 35. Press down the pressing platform 55 and drive the imprinting roller 552 to press down. At the same time, the linkage hinge rod 551 on the outside of the pressing platform 55 will push the ink pad platform 53 to both sides in the transverse slide rail 52. Initially, the imprinting roller 552 is still in contact with the ink pad platform 53. The imprinting roller 552 will first pick up the ink on the ink pad platform 53 and continue to descend until the imprinting roller 552 contacts the installed elastic cloth, leaving two marks on the surface of the elastic cloth. After the elastic cloth is stretched or fatigued, check whether the distance between the two marks matches the distance between the imprinting roller 552 to obtain the recovery status of the elastic cloth after stretching.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile property testing device for stretch fabric production, comprising a device base (1), characterized in that: The top surface of the device base (1) is fixedly connected with a mounting platform (2), the top surface of the mounting platform (2) is fixedly connected with a rotating wheel support A (21), the top surface of the mounting platform (2) is fixedly connected with a rotating wheel support B (22), the top surface of the mounting platform (2) is fixedly connected with a column support (23), the top surface of the mounting platform (2) is fixedly connected with a roller support (24), the inner side surface of the roller support (24) is rotatably connected with a conveying roller (25), the outer side surface of the rotating wheel support A (21) is provided with a manual stretching mechanism (3), the top surface of the mounting platform (2) is provided with a batch detection mechanism (4), and the top surface of the manual stretching mechanism (3) is provided with a recovery detection mechanism (5); The number of the rotating wheel support A (21) is two, and the two rotating wheel supports A (21) are symmetrically distributed with the central axis of the mounting platform (2) as the axis of symmetry, and the number of the column support (23) is two; The manual stretching mechanism (3) comprises a fixed clamping plate (31), the fixed clamping plate (31) is fixedly connected with the outer side surface of the rotating wheel support A (21), the outer side surface of the fixed clamping plate (31) is slidably connected with a movable clamping plate (311), the outer side surface of the fixed clamping plate (31) is fixedly connected with a connecting bolt (312), the outer side surface of the connecting bolt (312) is threadedly connected with a fastening nut (3121), the inner side surface of the rotating wheel support A (21) is rotatably connected with a driving rotating wheel (32), one side surface of the rotating wheel support A (21) is rotatably connected with a manual rocker (321), the inner side surface of the rotating wheel support A (21) on the other side of the mounting platform (2) is rotatably connected with a driven rotating wheel (322), the inner side surface of the rotating wheel support B (22) is rotatably connected with a winding rotating wheel (33), one end of the winding rotating wheel (33) is fixedly connected with a positioning ratchet wheel (331), the outer side surface of the positioning ratchet wheel (331) is engaged with a control pawl (3311), the outer side surface of the control pawl (3311) is fixedly connected with a pawl pushing column (3312), both ends of the winding rotating wheel (33) are fixedly connected with a lifting cam (34), the outer side surface of the rotating wheel support B (22) is provided with a driven moving groove (341), the top surface of the lifting cam (34) is slidably connected with a driven direct-acting rod (342), the outer side surface of the driven direct-acting rod (342) is fixedly connected with a rising platform (35), the outer side surface of the rising platform (35) is fixedly connected with a limiting column (351), the outer side surface of the column limiting groove (352) is fixedly connected with a counting ruler (353), and the inner side surface of the rising platform (35) is fixedly connected with a jacking cone (36). The batch detection mechanism (4) includes a motor support (41), the top surface of the installation platform (2) is fixedly connected with the motor support (41), the inner side surface of the motor support (41) is fixedly connected with a driving motor (42), the output end of the driving motor (42) is fixedly connected with a driving turntable (43), the outer side surface of the driving turntable (43) is provided with a dialing installation groove (431), the outer side surface of the driving turntable (43) is fixedly connected with a scale (432), the inner side surface of the dialing installation groove (431) is slidably connected with a small diameter bolt (433), the outer side surface of the small diameter bolt (433) is threadedly connected with a small diameter nut (4331), one end of the small diameter nut (4331) is fixedly connected with a fastening sleeve (4332), the outer side surface of the fastening sleeve (4332) is slidably connected with a direct-acting housing (44), the outer side surface of the direct-acting housing (44) is fixedly connected with a rack connecting frame (441), one end of the rack connecting frame (441) is fixedly connected with a reciprocating rack (442), the top surface of the column support (23) is fixedly connected with a direct-acting limiting column (45), the outer side surface of the reciprocating rack (442) is engaged with a driven gear (46); The recovery detection mechanism (5) includes a rotating base (51), the top surface of the rising platform (35) is rotatably connected with the rotating base (51), the outer side surface of the rotating base (51) is slidably connected with a rotating limiting groove (511), both sides of the rotating base (51) are fixedly connected with a horizontal sliding rail (52), the inner side surface of the horizontal sliding rail (52) is slidably connected with an ink pad platform (53), the top surface of the rotating base (51) is fixedly connected with a top support (54), the outer side surface of the top support (54) is fixedly connected with a mounting shaft (541), the outer side surface of the mounting shaft (541) is slidably connected with a pressing platform (55), the outer side surface of the pressing platform (55) is hingedly connected with a linkage hinged rod (551), the bottom surface of the pressing platform (55) is rotatably connected with a stamping roller brush (552), the outer side surface of the pressing platform (55) is provided with a pressing limiting groove (553), the inner side surface of the pressing limiting groove (553) is fixedly connected with a spring mounting column (5531), the outer side surface of the spring mounting column (5531) is sleeved with a return spring (5532).

2. The tensile property testing device for stretch fabric production according to claim 1, characterized in that: The fixed clamping plate (31) is three in number, and two of them are symmetrically distributed on the outer surface of the driving runner (32), the connecting bolts (312) are two in number on each fixed clamping plate (31) and are symmetrically distributed with the central axis of the fixed clamping plate (31) as the axis of symmetry, the connecting bolts (312) penetrate the movable clamping plate (311), the fastening nuts (3121) are in sliding connection with the outer surface of the movable clamping plate (311), the manual rocker (321) penetrates the runner support A (21) and is fixedly connected with the driving runner (32), the pawl pushing column (3312) penetrates the runner support B (22) and is rotatably connected with the inner wall thereof, the driven straight rods (342) are two in number and are symmetrically distributed with the central axis of the runner support B (22) as the axis of symmetry, the driven straight rods (342) are in sliding connection with the inner surface of the driven moving groove (341), the limiting upright columns (351) and the upright column limiting grooves (352) are four in number and are symmetrically distributed with the central axis of the runner support B (22) as the axis of symmetry, the limiting upright columns (351) and the upright column limiting grooves (352) are in sliding connection with the inner surface thereof, and the lifting cam (34) is in the form of an equal-speed spiral curve.

3. The tensile property testing device for stretch fabric production according to claim 2, characterized in that: The small-diameter bolt (433) penetrates the pushing installation groove (431) and the straight-moving shell (44), the fastening sleeve (4332) is in sliding connection with the outer surface of the driving turntable (43), the straight-moving limiting columns (45) are two in number and are symmetrically distributed with the central axis of the straight-moving shell (44) as the axis of symmetry, the straight-moving limiting columns (45) penetrate the straight-moving shell (44) and are in sliding connection with the inner wall thereof, and the driven gear (46) is fixedly connected with the end of the driving runner (32) away from the manual rocker (321).

4. The tensile property testing device for stretch fabric production according to claim 3, characterized in that: The rotating limiting groove (511) is formed in the top surface of the lifting platform (35), the ink pad platforms (53) are two in number and are symmetrically distributed with the central axis of the rotating base (51) as the axis of symmetry, the pressure-inking roller brushes (552) are two in number and are symmetrically distributed with the central axis of the rotating base (51) as the axis of symmetry, the top surface of the ink pad platform (53) is in sliding connection with the outer surface of the pressure-inking roller brush (552), the linkage hinged rods (551) are two in number and have their two ends respectively hingedly connected with the ink pad platform (53) and the pressing platform (55), the installation shaft (541) penetrates the pressing limiting groove (553) and the pressing platform (55), the spring installation column (5531) penetrates the installation shaft (541) and is in sliding connection with the inner wall thereof, and the two ends of the return spring (5532) are in sliding connection with the outer surfaces of the pressing limiting groove (553) and the installation shaft (541).

5. A test method of a tensile property testing device for stretch fabric production, using the tensile property testing device for stretch fabric production according to any one of claims 1 to 4, characterized by, The method comprises the following steps: S1, the elastic cloth to be detected is placed between the fixed clamping plate (31) and the movable clamping plate (311) on the driving pulley (32), and the connecting bolt (312) is tightened to clamp the elastic cloth at one end. The other end is wrapped around the surface of the driven pulley (322) and wound around the winding pulley (33) for one turn, and then placed between the fixed clamping plate (31) and the movable clamping plate (311) on the pulley support B (22) and tightened with the connecting bolt (312). S2, manually rotate the manual rocker (321) to drive the driving pulley (32) to rotate, gradually winding the elastic cloth and stretching it, and driving the winding pulley (33) to rotate, so that the two side lifting cams (34) lift the driven straight rod (342) and the rising platform (35), and the cone (36) lifts the elastic cloth above to concentrate force on the elastic cloth, until the elastic cloth breaks at the lifting cone (36), and the elastic cloth is no longer stretched after breaking, the lifting cam (34) stops rotating and the rising platform (35) immediately stops rising. The lifting cam (34) cannot be reversed due to the action of the positioning ratchet (331), and the rising platform (35) will stop at the current position. At this time, the position of the counting ruler (353) on the vertical column limiting groove (352) is obtained according to the position of the limiting vertical column (351), the height of the rising platform (35) when the elastic cloth breaks is obtained, and the stretching performance of the elastic cloth is obtained. S3, when the stretching limit of the elastic cloth is manually detected, adjust the position of the straight motion shell (44) on the driving disc (43) through the scale ruler (432) to make the rotation angle of the driven gear (46) not exceed the rotation angle of the driving pulley (32) after winding and stretching the elastic cloth to break, start the driving motor (42), and the driving disc (43) will push and pull the straight motion shell (44) to make it move vertically, the stroke of the reciprocating straight motion is determined by the position of the straight motion shell (44) on the driving disc (43), the reciprocating rack (442) is driven by the rack connecting frame (441) to reciprocate and engage the driven gear (46), so that the uniform rotation of the driving disc (43) is changed into the reciprocating rotation of the driving pulley (32) with variable rotation angle, and the elastic cloth will bear the stretching and the driving pulley (32) will recover. S4, rotate the rotating base (51) to align with the rising platform (35), press down the pressing platform (55) and drive the stamping roller brush (552) to press down, at the same time, the linkage hinge rod (551) on the outside of the pressing platform (55) will push the stamping platform (53) in the horizontal slide rail (52) to both sides. At first, the stamping roller brush (552) is still in contact with the stamping platform (53), the stamping roller brush (552) will first stain the stamping platform (53) with ink, and continue to descend until the stamping roller brush (552) contacts the installed elastic cloth, leaving two traces on the surface of the elastic cloth. When the stretching or fatigue detection of the elastic cloth is completed, check whether the distance between the two traces matches the distance between the stamping roller brushes (552) to obtain the recovery condition of the stretched elastic cloth.

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