A textile fiber strength detection device and method

Abstract

The present invention discloses a textile fiber strength detection device and method, which belongs to the field of fabric detection technology. It includes: a control platform; a fixed platform, fixedly connected to the control platform; a servo motor, fixedly connected to the control platform; a lead screw, fixedly connected to the output shaft of the servo motor, the lead screw is threadedly connected with a top pressure piece; a sliding ring, slidably connected to the top pressure piece, the sliding ring is slidably connected with a support shaft, and a first elastic element is arranged between the support shaft and the sliding ring; a support block, the top pressure piece is fixedly connected with a connecting frame, and the support block is slidably connected to the connecting frame on the top pressure piece. The present invention compresses the first elastic element and transmits the force to the top pressure piece, so that the compressive force of the first elastic element and the force between the top pressure piece and the fabric offset each other, reduce the eccentric wear phenomenon between the top pressure piece and the lead screw, and improve the accuracy of the fabric burst detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric detection, and in particular to a textile fiber strength detection device and method. Background Art

[0002] Fabric strength testing is an important means to evaluate the mechanical properties of fabrics under different conditions. These testing methods can help determine the strength and durability of fabrics, thereby ensuring their performance in actual use. Fabric strength testing includes tensile strength testing, bursting strength testing, peeling strength testing, and wear resistance testing. Among them, fabric bursting strength testing is an important test method for evaluating the ability of fabrics to resist bursting in the vertical direction. Existing fabric bursting strength testing devices use a top pressure piece to vertically burst the fabric. Most of the bursting methods use a motor to drive the lead screw to make the top pressure piece burst the fabric downward at a uniform speed to ensure the accuracy of the data. However, when the lead screw drives the top pressure piece to burst the fabric, the bursting force between the top pressure piece and the fabric will act between the lead screw and the top pressure piece, resulting in eccentric wear between the top pressure piece and the lead screw due to the bursting force. After long-term use, it is very easy to cause a gap between the lead screw and the top pressure piece, causing the top pressure piece to jam when bursting the fabric at a uniform speed along the lead screw, thereby reducing the accuracy of the fabric bursting test data. Summary of the invention

[0003] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a textile fiber strength detection device and method.

[0004] The technical solution is as follows: A textile fiber strength testing device, comprising:

[0005] Control platform;

[0006] A fixing platform, fixedly connected to the control platform, used for fixing the fabric to be tested, wherein the control platform is fixedly connected to a housing;

[0007] A servo motor, fixedly connected to the control platform and located in the housing;

[0008] A lead screw is fixedly connected to the output shaft of the servo motor, the lead screw is threadedly connected to a pressing piece, and the housing is slidably connected to the pressing piece;

[0009] A sliding ring, slidably connected to the top pressure piece, the sliding ring is slidably connected to a support shaft, and a first elastic element is provided between the support shaft and the sliding ring;

[0010] A support block, wherein the top pressure piece is fixedly connected to a connecting frame, the support block is slidably connected to the connecting frame on the top pressure piece, and the support block is used to limit the support shaft;

[0011] A trigger assembly, disposed in the housing, and used to drive the sliding ring to slide along the supporting shaft;

[0012] A force unloading assembly is arranged on the top pressure piece and is used for separating the support block from the support shaft.

[0013] Preferably, the trigger component comprises:

[0014] A first rack frame, fixedly connected to the sliding ring;

[0015] A transmission gear is rotatably connected to the top pressure member, and the first rack is meshed with the transmission gear;

[0016] The second rack is fixedly connected to the inside of the shell, and the second rack is used to rotate the transmission gear.

[0017] Preferably, the vertical distance from the fixing plane of the fixing platform to the fabric to the top pressure piece is the same as the vertical distance between the second rack and the middle of the transmission gear.

[0018] Preferably, a second elastic element is provided between the pressing member and the transmission gear, and the elastic force of the second elastic element is greater than the sum of the gravity of the sliding ring, the supporting shaft, the first elastic element and the first rack.

[0019] Preferably, the force unloading component comprises:

[0020] An electromagnet, fixedly connected to the top pressure piece;

[0021] A third elastic element is disposed between the connecting frame of the pressing member and the supporting block;

[0022] The support block is made of ferromagnetic material, which is used for the electromagnet to attract the support block, and the adjacent sides of the support block and the support shaft are both provided with inclined surfaces.

[0023] As a preferred embodiment, it also includes:

[0024] An oiling assembly is provided on the top pressure piece and is used to apply oil to the outside of the lead screw. The oiling assembly includes:

[0025] A sliding shaft, slidably connected to the top pressure piece;

[0026] a fourth elastic element, disposed between the sliding shaft and the pressing member;

[0027] An oiling sponge, fixedly connected to the sliding shaft, and used for applying oil to the outside of the lead screw;

[0028] The transmission assembly is arranged on the top pressure piece and is used for driving the oiling sponge to fit the lead screw.

[0029] Preferably, the transmission assembly comprises:

[0030] A transmission block, fixedly connected to the sliding shaft;

[0031] A transmission rod is slidably connected to the top pressure piece, and the transmission rod is fixedly connected to an extrusion plate, and the extrusion plate is used to extrude the transmission block;

[0032] a fifth elastic element, disposed between the transmission rod and the pressing member;

[0033] The driving assembly is arranged on the pressing member and is used for periodically causing the transmission rod to press the transmission block.

[0034] Preferably, the driving assembly comprises:

[0035] A clamping block, fixedly connected to the transmission rod;

[0036] A one-way gear, the top pressure piece is rotatably connected to a transmission shaft, and the one-way gear is mounted on the transmission shaft on the top pressure piece;

[0037] A trigger plate, fixedly connected to the transmission shaft of the top pressure member, the trigger plate is provided with a groove, and the groove of the trigger plate is used to limit the clamping block;

[0038] A gear block is fixedly connected in the housing, and the gear block is used to drive the one-way gear to rotate.

[0039] Preferably, the elastic coefficient of the fifth elastic element is greater than the elastic coefficient of the fourth elastic element.

[0040] A textile fiber strength detection method, applied to the above-mentioned textile fiber strength detection device, comprises the following steps:

[0041] Step 1: First, fix the fabric to be tested on the fixed platform, then set the rotation speed of the servo motor output shaft, turn on the servo motor, and make the output shaft of the servo motor drive the top pressure piece to move downward through the lead screw, so that the top pressure piece drives the transmission gear to move downward synchronously until the top pressure piece contacts the fabric, and the transmission gear contacts the second rack;

[0042] Step 2: After the top pressure piece contacts the fabric, the lead screw drives the top pressure piece to continue to move downward, and the top pressure piece begins to break the fabric, and the fabric is stretched. At the same time, the transmission gear moves downward along the second rack and rotates. The transmission gear compresses the first elastic element through the first rack, and the first elastic element compresses and exerts a force on the top pressure piece through the support shaft and the support block, until the fabric breaks;

[0043] Step 3: When the fabric is broken, the servo motor reverses to drive the top pressure piece to reset, and at the same time the electromagnet turns on and attracts the support block to slide, and the support block releases the limit on the support shaft, so that the top pressure piece is no longer subjected to the force of the first elastic element;

[0044] Step 4: After the first elastic element releases the force on the top pressure piece, the top pressure piece drives the transmission gear to separate from the second rack rack, and at the same time, the first rack rack drives the support shaft to reset, and then the electromagnet is turned off to reset the support block to limit the support shaft again, so that the top pressure piece is reset to the initial height, and the servo motor is turned off;

[0045] Step 5: When the pressing piece presses the fabric, the one-way gear meshes with the tooth block, and the one-way gear drives the trigger plate to rotate until the groove of the trigger plate docks with the block. At this time, the trigger plate drives the oil sponge to fit the lead screw for oiling.

[0046] The beneficial effects of the present invention are: 1. The present invention compresses the first elastic element and transmits the force to the top pressure piece, so that the compressive force of the first elastic element and the force between the top pressure piece and the fabric offset each other, thereby reducing the eccentric wear between the top pressure piece and the screw and improving the accuracy of the fabric burst detection data.

[0047] 2. When the fabric bursting detection is completed, the electromagnet is turned on to attract the support block to release the limit on the support shaft, so that the compressive force of the first elastic element on the top pressure piece disappears instantly, thereby maintaining the force balance of the top pressure piece, reducing the eccentric wear between the top pressure piece and the lead screw, and improving the accuracy of the fabric bursting detection data.

[0048] 3. By periodically fitting the oiling sponge to the lead screw and making the oiling sponge spiral along the oiling track on the outside of the lead screw, ensure that the oiling sponge is evenly coated with lubricating oil on the outside of the lead screw, reduce the wear force between the lead screw and the top pressure piece, and extend the service life of the lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0050] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the housing of the present invention;

[0051] Figure 3 It is a schematic diagram of the three-dimensional structure of the first rack and the transmission gear of the present invention;

[0052] Figure 4 It is a three-dimensional structural schematic diagram of the oiling sponge and the tooth block of the present invention;

[0053] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the top pressing piece of the present invention;

[0054] Figure 6 It is a three-dimensional structural schematic diagram of the one-way gear and the trigger plate of the present invention.

[0055] Markings in the accompanying drawings: 1-control platform, 2-fixed table, 3-housing, 4-servo motor, 5-screw, 6-pressing piece, 7-sliding ring, 8-support shaft, 9-first elastic element, 10-support block, 201-first rack, 202-transmission gear, 203-second rack, 204-second elastic element, 301-electromagnet, 302-third elastic element, 401-sliding shaft, 402-fourth elastic element, 403-oil sponge, 404-transmission block, 405-transmission rod, 4051-extrusion plate, 406-fifth elastic element, 407-block, 408-one-way gear, 409-trigger disk, 410-tooth block. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0057] The existing fabric bursting force detection device usually uses a push piece to vertically break the fabric. During the breaking process, the motor drives the push piece to move downward at a constant speed through a screw to ensure the accuracy of the data. However, when the screw drives the push piece to break the fabric, the breaking force between the push piece and the fabric will be transmitted between the screw and the push piece, resulting in eccentric wear between the two. After long-term use, this eccentric wear will cause a gap between the screw and the push piece, causing the push piece to get stuck when moving at a uniform speed along the screw, which will not only affect the smooth movement of the push piece, but also reduce the accuracy of the fabric bursting detection data.

[0058] A textile fiber strength testing device, such as Figure 1-Figure 3As shown, it includes: a control platform 1; a fixed platform 2, fixedly connected to the control platform 1, used to fix the fabric to be detected, and the control platform 1 is fixedly connected with a shell 3; a servo motor 4, fixedly connected to the control platform 1, and located in the shell 3; a screw 5, fixedly connected to the output shaft of the servo motor 4, the screw 5 is threadedly connected with a top pressure piece 6, and the shell 3 is slidably connected to the top pressure piece 6; a sliding ring 7, slidably connected to the top pressure piece 6, the sliding ring 7 is slidably connected to a support shaft 8, and a first elastic element 9 is arranged between the support shaft 8 and the sliding ring 7; a support block 10, the top pressure piece 6 is fixedly connected with a connecting frame, the support block 10 is slidably connected to the connecting frame on the top pressure piece 6, and the support block 10 is used to limit the support shaft 8; a trigger assembly, arranged in the shell 3, used to drive the sliding ring 7 to slide along the support shaft 8; a force unloading assembly, arranged on the top pressure piece 6, used to separate the support block 10 from the support shaft 8.

[0059] In the above scheme, a control terminal and a display system are provided on the control platform 1, the control terminal is used for the staff to set parameters, the display system is used to feedback the detection data, the fixed platform 2 is composed of a placing platform and a pressing plate, and holes of the same radius are provided at the center of both, the two are threadedly connected, the servo motor 4 is electrically connected to the control terminal, the staff can adjust the rotation speed of the output shaft of the servo motor 4 according to actual conditions, a force sensor and a displacement sensor are provided on the top pressing member 6, the force sensor and the displacement sensor on the top pressing member 6 are electrically connected to the control terminal, the force sensor of the top pressing member 6 is used to record the force in the process of fabric bursting, and the displacement sensor of the top pressing member 6 is used to record the displacement and movement of the top pressing member 6 The moving path, the pressing center axis of the pressing piece 6 coincides with the center axis of the holes on the placing table and the pressing plate, the top of the screw 5 is rotatably connected to the shell 3 to ensure the stability of the screw 5 when it rotates, the screw 5 is made of stainless steel, which further reduces the friction loss between it and the pressing piece 6, the first elastic element 9 is a spring, which is used to apply a force to the pressing piece 6 through the support shaft 8 and the support block 10, and when the pressing piece 6 performs a bursting detection on the fabric, the first elastic element 9 is compressed and the force is transmitted to the pressing piece 6, the compression force of the first elastic element 9 and the force of the pressing piece 6 and the fabric offset each other, thereby reducing the eccentric wear between the pressing piece 6 and the screw 5 and improving the accuracy of the fabric bursting detection data.

[0060] Specifically, Figure 2 and Figure 3As shown, the trigger assembly includes: a first rack 201, fixedly connected to the sliding ring 7; a transmission gear 202, rotatably connected to the top pressure piece 6, the first rack 201 meshing with the transmission gear 202; a second rack 203, fixedly connected to the inside of the housing 3, the second rack 203 is used to rotate the transmission gear 202; the vertical distance from the fixed plane of the fabric of the fixed platform 2 to the top pressure piece 6 is the same as the vertical distance between the second rack 203 and the middle of the transmission gear 202; a second elastic element 204 is arranged between the top pressure piece 6 and the transmission gear 202, and the elastic force of the second elastic element 204 is greater than the sum of the gravity of the sliding ring 7, the support shaft 8, the first elastic element 9 and the first rack 201.

[0061] In the above scheme, the first rack 201, the transmission gear 202 and the second rack 203 are made of carbon steel, which has low cost, high strength and certain wear resistance. The vertical distance from the fixed plane of the fixed platform 2 to the top pressure piece 6 of the fabric is the same as the vertical distance between the second rack 203 and the middle of the transmission gear 202, which is used to make the force of the first elastic element 9 on the top pressure piece 6 and the force of the fabric top pressure piece 6 start synchronously. The second elastic element 204 is a torsion spring, which is used to maintain the stability of the transmission gear 202 and prevent the transmission gear 202 from rotating due to the gravity of the first rack 201, resulting in the support block 10 being unable to reset to the lower side of the support shaft 8.

[0062] Specifically, Figure 2 and Figure 3 As shown, the force unloading assembly includes: an electromagnet 301, fixedly connected to the top pressure piece 6; a third elastic element 302, arranged between the connecting frame of the top pressure piece 6 and the support block 10; the support block 10 is made of ferromagnetic material, which is used to make the electromagnet 301 attract the support block 10, and the adjacent sides of the support block 10 and the support shaft 8 are both provided with inclined surfaces.

[0063] In the above scheme, the electromagnet 301 is electrically connected to the control terminal, and the initial state of the electromagnet 301 is the unopened state. The support block 10 is made of ferromagnetic material, such as iron, nickel and cobalt. The third elastic element 302 is a tension spring, which is used to drive the support block 10 to reset to the lower side of the support shaft 8. The contact surface between the support block 10 and the support shaft 8 is a smooth plane, which reduces the sliding resistance of the support block 10. When the fabric is burst through detection, the electromagnet 301 is turned on to attract the support block 10 to release the limit on the support shaft 8, so that the compressive force of the first elastic element 9 on the top pressure piece 6 disappears instantly, thereby maintaining the force balance of the top pressure piece 6 and avoiding the compressive force of the first elastic element 9 still acting on the top pressure piece 6, causing eccentric wear between the top pressure piece 6 and the screw 5.

[0064] When the staff needs to use the present device to perform a top pressure strength test on the fabric, the fabric to be tested is fixed on the fixed platform 2, the rotation speed of the output shaft of the servo motor 4 is set through the control terminal of the control platform 1, and then the servo motor 4 is turned on. The output shaft of the servo motor 4 drives the lead screw 5 to rotate, and the rotation of the lead screw 5 drives the top pressure piece 6 to move downward at a uniform speed until the top pressure piece 6 moves to contact the fabric in the fixed platform 2, the lead screw 5 continues to drive the top pressure piece 6 to move downward, and the fabric bursting test is started. The top pressure piece 6 presses the fabric to cause the fabric to be stretched and deformed, and this is done until the top pressure piece 6 bursts the fabric. At this time, the force sensor on the top pressure piece 6 records the bursting force of the fabric, and the displacement sensor on the top pressure piece 6 records the displacement of the top pressure piece 6, and feeds it back to the display system of the control platform 1 for the convenience of the staff to record. After the force sensor on the top pressure piece 6 detects that the fabric is burst, the output shaft of the servo motor 4 rotates in the opposite direction, and the top pressure piece 6 is reset to the initial state. The above process is the fabric bursting detection process.

[0065] In the above fabric burst detection process, when the top pressure piece 6 moves downward to contact the fabric in the fixed platform 2, the top pressure piece 6 drives the transmission gear 202 to contact the second rack 203 synchronously, and then the top pressure piece 6 continues to move downward to press the fabric, and the top pressure piece 6 drives the transmission gear 202 to start moving along the second rack 203. At the same time, the transmission gear 202 rotates, the second elastic element 204 twists, and the transmission gear 202 drives the first rack 201 to move downward with the top pressure piece 6 as a reference. At this time, the first The rack frame 201 drives the sliding ring 7 to slide downward along the support shaft 8, so that the first elastic element 9 begins to compress. The compressive force of the first elastic element 9 is transmitted to the top pressure piece 6 through the support shaft 8 and the support block 10, so that the compressive force of the first elastic element 9 and the force between the top pressure piece 6 and the fabric offset each other, reducing the force between the top pressure piece 6 and the lead screw 5, thereby alleviating the eccentric wear between the two, and reducing the probability of the top pressure piece 6 getting stuck, resulting in inaccurate fabric burst detection data, until the top pressure piece 6 bursts the fabric.

[0066] When the fabric is pushed up by the pressing piece 6, the force between the pressing piece 6 and the fabric disappears. At this moment, the force sensor on the pressing piece 6 sends a signal to the control terminal of the control platform 1 to turn on the electromagnet 301, making the electromagnet 301 magnetic. At this moment, the electromagnet 301 attracts the support block 10, and the support block 10 slides along the connecting frame of the pressing piece 6. The third elastic element 302 is stretched, and the support block 10 is separated from the support shaft 8, and the limit of the support block 10 on the support shaft 8 is released. At this time, the compressive force of the first elastic element 9 cannot act on the pressing piece 6 through the support shaft 8 and the support block 10, so as to avoid that after the pressing piece 6 breaks the fabric, the compressive force of the first elastic element 9 still acts on the pressing piece 6, resulting in unbalanced force on the pressing piece 6, causing eccentric wear between the pressing piece 6 and the lead screw 5. At the same time, due to the separation of the support block 10 from the support shaft 8, the elastic force of the first elastic element 9 is released, and the support shaft 8 is pushed to slide along the sliding ring 7 until the elongation of the first elastic element 9 is restored.

[0067] When the first elastic element 9 is stretched and restored, the output shaft of the servo motor 4 rotates in the opposite direction and drives the lead screw 5 to rotate in the opposite direction synchronously. The lead screw 5 drives the top pressure piece 6 to move upward, and the top pressure piece 6 drives the transmission gear 202 to move upward synchronously. The transmission gear 202 moves upward along the second rack frame 203 and rotates in the opposite direction. At this time, the transmission gear 202 drives the first rack frame 201 to move upward, and the second elastic element 204 begins to reset, and this continues until the transmission gear 202 is separated from the second rack frame 203. The first rack frame 201 drives the sliding ring 7, the support shaft 8 and the first elastic element 9 to restore to the initial height relative to the top pressure piece 6. At the same time, the second elastic element 204 is reset to the initial state, and then the control terminal turns off the electromagnet 301, so that the electromagnet 301 releases the attraction to the support block 10. At this moment, the third elastic element 302 drives the support block 10 to reset to the lower side of the support shaft 8 and fit each other. Then, when the top pressure piece 6 is restored to the initial height, the staff removes the broken fabric, and repeats the above steps when the fabric is tested for breaking again.

[0068] In a further embodiment, Figure 4 and Figure 5 As shown, it also includes: an oiling component, which is arranged on the top pressure piece 6 and is used to apply oil to the outside of the screw 5. The oiling component includes: a sliding shaft 401, which is slidably connected to the top pressure piece 6; a fourth elastic element 402, which is arranged between the sliding shaft 401 and the top pressure piece 6; an oiling sponge 403, which is fixedly connected to the sliding shaft 401, and the oiling sponge 403 is used to apply oil to the outside of the screw 5; a transmission component, which is arranged on the top pressure piece 6 and is used to drive the oiling sponge 403 to fit with the screw 5.

[0069] In the above scheme, the fourth elastic element 402 is a spring, which is used to drive the sliding shaft 401 to reset. An oil circuit is arranged inside the oil sponge 403, and the oil circuit inside the oil sponge 403 is connected with an external lubricating oil injection device. The lubricating oil injection device is electrically connected to the control terminal. A pressure sensor (not shown in the figure) is arranged at the connection between the sliding shaft 401 and the oil sponge 403, which is used to detect whether the oil sponge 403 is in contact with the lead screw 5. That is, when the pressure sensor on the sliding shaft 401 senses a pressure change, the external lubricating oil injection device is turned on, so that the oil sponge 403 oils the lead screw 5. The length of the oil sponge 403 is greater than the pitch of the lead screw 5, so that the oil sponge 403 can evenly apply lubricating oil to the outside of the lead screw 5.

[0070] Specifically, Figure 5 and Figure 6 As shown, the transmission assembly includes: a transmission block 404, fixedly connected to the sliding shaft 401; a transmission rod 405, slidably connected to the top pressure piece 6, the transmission rod 405 is fixedly connected to an extrusion plate 4051, and the extrusion plate 4051 is used to extrude the transmission block 404; a fifth elastic element 406, arranged between the transmission rod 405 and the top pressure piece 6; a driving assembly, arranged on the top pressure piece 6, and used to periodically cause the transmission rod 405 to extrude the transmission block 404.

[0071] In the above scheme, the transmission block 404 has an inclined surface, the extrusion plate 4051 is provided with an inclined surface that fits the transmission block 404, the fifth elastic element 406 is a tension spring, and the initial state is a stretched state, and the fifth elastic element 406 is used to drive the transmission rod 405 to slide along the top pressure piece 6.

[0072] Specifically, Figure 5 and Figure 6 As shown, the driving assembly includes: a block 407, fixedly connected to the transmission rod 405; a one-way gear 408, which is rotatably connected to the top pressure piece 6 and is installed on the transmission shaft on the top pressure piece 6; a trigger plate 409, fixedly connected to the transmission shaft of the top pressure piece 6, the trigger plate 409 is provided with a groove, and the groove of the trigger plate 409 is used to limit the block 407; a tooth block 410, fixedly connected to the housing 3, and the tooth block 410 is used to drive the one-way gear 408 to rotate; the elastic coefficient of the fifth elastic element 406 is greater than the elastic coefficient of the fourth elastic element 402.

[0073] In the above scheme, the block 407 is an isosceles trapezoidal block. When the top pressure piece 6 drives the one-way gear 408 to move downward and mesh with the tooth block 410, the one-way gear 408 drives the transmission shaft on the top pressure piece 6 to rotate synchronously, that is, drives the trigger disk 409 to rotate synchronously. When the top pressure piece 6 drives the one-way gear 408 to move upward and mesh with the tooth block 410, the one-way gear 408 cannot drive the transmission shaft on the top pressure piece 6 to rotate synchronously. The trigger disk 409 is provided with an isosceles trapezoidal groove that fits the block 407. The number of teeth of the one-way gear 408 is freely set according to actual conditions. The fewer the number of teeth of the one-way gear 408, the shorter the docking period between the block 407 and the groove on the trigger disk 409, that is, the shorter the oiling interval time of the screw 5.

[0074] When performing burst detection on fabric, the load force generated between the pressure piece and the fabric will act on the lead screw, aggravating the wear between the two and causing a gap between them, resulting in the pressure piece being unable to perform pressure detection on the fabric at a uniform speed, affecting the accuracy of the fabric detection data.

[0075] When the top pressure piece 6 moves downward to perform a top pressure test on the fabric, the top pressure piece 6 drives the one-way gear 408 at its bottom to move downward synchronously, and this continues until the one-way gear 408 contacts the tooth block 410, and the two are meshed, so that the one-way gear 408 drives the trigger disk 409 to rotate through the transmission shaft on the top pressure piece 6. When the fabric completes the top pressure test, the top pressure piece 6 resets upward. When the tooth block 410 contacts the one-way gear 408, the one-way gear 408 cannot drive the trigger disk 409 to rotate through the transmission shaft on the top pressure piece 6. This cycle continues until the groove on the trigger disk 409 rotates to the block 407. At this time, the fifth elastic element 406 releases the tension to drive the transmission rod 405 to slide along the top pressure piece 6, and the transmission rod 405 drives the extrusion plate 4051 to move synchronously, and the extrusion plate 4051 squeezes the transmission block 404. The transmission block 404 is driven by the extrusion force to drive the sliding shaft 401 to slide along the pressing piece 6, and the fourth elastic element 402 is compressed, so that the sliding shaft 401 drives the oiled sponge 403 to fit the outside of the lead screw 5, and the pressure sensor on the sliding shaft 401 senses the pressure change, and the external lubricating oil injection device is turned on, and the lubricating oil is immersed in the oiled sponge 403. The oiled sponge 403 coats the outside of the lead screw 5 with lubricating oil, and then the pressing piece 6 is reset to the initial state after the fabric is pressed. During this process, the lead screw 5 is always in a rotating state, and the pressing piece 6 drives the oiled sponge 403 to move up and down through the sliding shaft 401, that is, the oiled sponge 403 performs a superimposed and overlapping spiral motion on the outside of the lead screw 5, and the outside of the lead screw 5 is coated with lubricating oil. When the pressing piece 6 is reset to the initial state, the external lubricating oil injection device is closed.

[0076] When the top pressure piece 6 drives the one-way gear 408 to mesh with the tooth block 410 again, the trigger plate 409 rotates to squeeze the block 407, so that the block 407 is separated from the groove of the trigger plate 409, and at the same time the fifth elastic element 406 is reset to the initial state, the transmission rod 405 drives the squeezing plate 4051 to reset and release the squeezing of the transmission block 404, so that the fourth elastic element 402 drives the sliding shaft 401 to reset, and the sliding shaft 401 drives the oil sponge 403 to separate from the lead screw 5, and so on. The cycle is repeated, and the oil sponge 403 is periodically fitted with the lead screw 5, and the oil sponge 403 is spirally moved along the outside of the lead screw 5 to coat the outside of the lead screw 5 with lubricating oil, thereby reducing the wear force between the lead screw 5 and the top pressure piece 6, extending the service life of the lead screw 5, and reducing the top pressure detection accuracy of the fabric. When the groove of the trigger plate 409 slides to the block 407 again, the above steps are repeated.

[0077] In a further embodiment, Figure 1-Figure 6 As shown, a textile fiber strength detection method is applied to the above-mentioned textile fiber strength detection device, comprising the following steps:

[0078] Step 1: First, fix the fabric to be tested on the fixed platform 2, then set the rotation speed of the output shaft of the servo motor 4, turn on the servo motor 4, so that the output shaft of the servo motor 4 drives the top pressure piece 6 to move downward through the screw 5, and the top pressure piece 6 drives the transmission gear 202 to move downward synchronously until the top pressure piece 6 contacts the fabric, and the transmission gear 202 contacts the second rack 203;

[0079] Step 2: After the pressing piece 6 contacts the fabric, the lead screw 5 drives the pressing piece 6 to continue to move downward, and the pressing piece 6 begins to break the fabric, and the fabric is stretched. At the same time, the transmission gear 202 moves downward along the second rack 203 and rotates. The transmission gear 202 compresses the first elastic element 9 through the first rack 201. The first elastic element 9 compresses and exerts a force on the pressing piece 6 through the support shaft 8 and the support block 10, until the fabric breaks.

[0080] Step 3: When the fabric is broken, the servo motor 4 reverses to drive the top pressure piece 6 to reset, and at the same time the electromagnet 301 turns on and attracts the support block 10 to slide, and the support block 10 releases the limit on the support shaft 8, so that the top pressure piece 6 is no longer subjected to the force of the first elastic element 9;

[0081] Step 4: After the first elastic element 9 releases the force exerted on the top pressure piece 6, the top pressure piece 6 drives the transmission gear 202 to separate from the second rack 203, and at the same time, the first rack 201 drives the support shaft 8 to reset, and then the electromagnet 301 is turned off to reset the support block 10 to limit the support shaft 8 again, and this is done until the top pressure piece 6 is reset to the initial height, and the servo motor 4 is turned off;

[0082] Step 5: When the pressing piece 6 presses the fabric, the one-way gear 408 meshes with the tooth block 410, and the one-way gear 408 drives the trigger plate 409 to rotate until the groove of the trigger plate 409 docks with the block 407. At this time, the trigger plate 409 drives the oil sponge 403 to fit with the screw 5 for oiling.

[0083] What has been described above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A textile fiber strength testing device, characterized in that: Included are: Control platform (1); A fixing platform (2) fixedly connected to the control platform (1) and used to fix the fabric to be tested, wherein the control platform (1) is fixedly connected to a housing (3); A servo motor (4) fixedly connected to the control platform (1) and located inside the housing (3); A lead screw (5) is fixedly connected to the output shaft of the servo motor (4); the lead screw (5) is threadedly connected to a pressing piece (6); and the housing (3) is slidably connected to the pressing piece (6); A sliding ring (7) is slidably connected to the top pressure piece (6); the sliding ring (7) is slidably connected to a support shaft (8); a first elastic element (9) is provided between the support shaft (8) and the sliding ring (7); A support block (10), the top pressure piece (6) is fixedly connected to a connecting frame, the support block (10) is slidably connected to the connecting frame on the top pressure piece (6), and the support block (10) is used to limit the support shaft (8); A trigger assembly, disposed in the housing (3), and used to drive the sliding ring (7) to slide along the supporting shaft (8); A force unloading assembly, arranged on the top pressure member (6), and used for separating the support block (10) from the support shaft (8); The trigger assembly comprises: a first rack (201) fixedly connected to the sliding ring (7); A transmission gear (202) is rotatably connected to the top pressure member (6), and the first rack (201) is meshed with the transmission gear (202); A second rack rack (203) is fixedly connected to the interior of the housing (3), and the second rack rack (203) is used to rotate the transmission gear (202); The first rack frame (201) drives the sliding ring (7) to slide downward along the supporting shaft (8), causing the first elastic element (9) to begin to compress, and the compressive force of the first elastic element (9) and the force of the pressing member (6) and the fabric offset each other.

2. A textile fiber strength testing device according to claim 1, characterized in that: The vertical distance from the fixing plane of the fixing platform (2) for the fabric to the top pressure piece (6) is the same as the vertical distance between the second rack (203) and the middle of the transmission gear (202).

3. A textile fiber strength testing device according to claim 2, characterized in that: A second elastic element (204) is provided between the pressing member (6) and the transmission gear (202), and the elastic force of the second elastic element (204) is greater than the sum of the gravity of the sliding ring (7), the supporting shaft (8), the first elastic element (9) and the first rack frame (201).

4. A textile fiber strength testing device according to claim 3, characterized in that: The force unloading component comprises: An electromagnet (301) fixedly connected to the pressing member (6); A third elastic element (302) is arranged between the connecting frame of the pressing member (6) and the supporting block (10); The support block (10) is made of ferromagnetic material and is used to enable the electromagnet (301) to attract the support block (10), and the adjacent sides of the support block (10) and the support shaft (8) are both provided with inclined surfaces.

5. A textile fiber strength testing device according to claim 4, characterized in that: Also included are: An oiling assembly is arranged on the top pressure piece (6) and is used to apply oil to the outside of the lead screw (5), and the oiling assembly comprises: A sliding shaft (401) slidably connected to the top pressing member (6); A fourth elastic element (402) is arranged between the sliding shaft (401) and the pressing member (6); An oiling sponge (403) fixedly connected to the sliding shaft (401), the oiling sponge (403) being used to apply oil to the outside of the lead screw (5); A transmission assembly is arranged on the top pressure piece (6) and is used to drive the oil-coated sponge (403) to fit the lead screw (5).

6. A textile fiber strength testing device according to claim 5, characterized in that: The transmission assembly comprises: A transmission block (404) fixedly connected to the sliding shaft (401); A transmission rod (405) is slidably connected to the top pressure piece (6); the transmission rod (405) is fixedly connected to a pressing plate (4051), and the pressing plate (4051) is used to press the transmission block (404); a fifth elastic element (406) disposed between the transmission rod (405) and the pressing member (6); A driving assembly is arranged on the pressing member (6) and is used to periodically cause the transmission rod (405) to press the transmission block (404).

7. A textile fiber strength testing device according to claim 6, characterized in that: The drive assembly comprises: A clamping block (407) fixedly connected to the transmission rod (405); A one-way gear (408), the top pressure piece (6) is rotatably connected to a transmission shaft, and the one-way gear (408) is mounted on the transmission shaft on the top pressure piece (6); A trigger plate (409) is fixedly connected to the transmission shaft of the top pressure member (6), the trigger plate (409) being provided with a groove, and the groove of the trigger plate (409) is used to limit the clamping block (407); The tooth block (410) is fixedly connected to the housing (3), and the tooth block (410) is used to drive the one-way gear (408) to rotate.

8. A textile fiber strength testing device according to claim 7, characterized in that: The elastic coefficient of the fifth elastic element (406) is greater than the elastic coefficient of the fourth elastic element (402).

9. A textile fiber strength detection method, according to the textile fiber strength detection device according to claim 8, characterized in that: The following steps are involved: Step 1: First, fix the fabric to be tested on the fixed platform (2), then set the rotation speed of the output shaft of the servo motor (4), turn on the servo motor (4), and make the output shaft of the servo motor (4) drive the top pressure piece (6) to move downward through the lead screw (5), so that the top pressure piece (6) drives the transmission gear (202) to move downward synchronously until the top pressure piece (6) contacts the fabric, and the transmission gear (202) contacts the second rack (203); Step 2: After the pressing piece (6) contacts the fabric, the lead screw (5) drives the pressing piece (6) to continue to move downward, and the pressing piece (6) begins to break the fabric, and the fabric is stretched. At the same time, the transmission gear (202) moves downward along the second rack (203) and rotates. The transmission gear (202) compresses the first elastic element (9) through the first rack (201). The first elastic element (9) compresses and exerts a force on the pressing piece (6) through the support shaft (8) and the support block (10), and this continues until the fabric breaks. Step 3: When the fabric is broken, the servo motor (4) rotates in reverse to drive the pressing member (6) to reset, and at the same time the electromagnet (301) turns on and attracts the support block (10) to slide, and the support block (10) releases the limit on the support shaft (8), so that the pressing member (6) is no longer subjected to the force of the first elastic element (9); Step 4: After the first elastic element (9) releases the force exerted on the top pressure piece (6), the top pressure piece (6) drives the transmission gear (202) to separate from the second rack (203), and at the same time, the first rack (201) drives the support shaft (8) to reset, and then the electromagnet (301) is turned off, so that the support block (10) is reset to limit the support shaft (8) again, and this process continues until the top pressure piece (6) is reset to the initial height, and the servo motor (4) is turned off; Step 5: When the pressing member (6) presses the fabric, the one-way gear (408) is meshed with the tooth block (410), and the one-way gear (408) drives the trigger plate (409) to rotate until the groove of the trigger plate (409) is connected with the block (407). At this time, the trigger plate (409) drives the oiling sponge (403) to fit with the lead screw (5) for oiling.

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