A device for testing the abrasion resistance of knitted denim fabric

Abstract

The present application relates to fabric detection equipment technical field, especially in a kind of knitted denim wear resistance detection device, including: rack, the rack is slidably connected with two tension frames, each tension frame is slidably connected with a base, recess is opened in the top of base, pressure shaft is rotatably connected on tension frame, the convex strip of pressure shaft side portion is in contact with recess, the bottom of base is connected with tension frame by spring, device is by setting base, recess, pressure shaft and convex strip, substantially reduce the difficulty of fabric end clamping and positioning, increase the stability when fabric is tested, and improve the accuracy of fabric test.

Description

Technical Field

[0001] This invention relates to the field of fabric testing equipment technology, and in particular to a device for testing the abrasion resistance of knitted denim fabric. Background Technology

[0002] Fabric abrasion testing devices are used to assess a fabric’s ability to resist abrasion. Different types of devices simulate different abrasion patterns and scenarios. By setting the number of abrasion cycles, the abrasion resistance of the fabric can be evaluated, such as mass loss and appearance changes.

[0003] However, existing technologies still have shortcomings. For example, patent number CN202221228795.8 describes a testing device for high-strength, wear-resistant home textile fabrics. Its technical solution includes: a base plate, on the upper side of which is a movable plate capable of reciprocating laterally; a support plate is fixed to the upper side of the movable plate via a connecting block a; two mounting rollers are rotatably mounted on the lower side of the support plate via a connecting plate; the two mounting rollers are respectively fitted with a collection sleeve and a fabric sleeve; the fabric of the fabric sleeve wraps around the support plate and onto the collection sleeve; a motor is fixed to the connecting plate to drive the mounting rollers that mount the collection sleeve. This device requires clamping the fabric before testing, but during clamping, the clamping force is difficult to control, resulting in low work efficiency. Summary of the Invention

[0004] This invention provides a device for testing the abrasion resistance of knitted denim fabrics to address the issues raised in the background art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a device for testing the abrasion resistance of knitted denim fabric, comprising: a frame, on which two tension frames are slidably connected, and on each tension frame a base is slidably connected, the top of the base having a groove, a pressure shaft being rotatably connected to the tension frame, a protrusion on the side of the pressure shaft engaging with the groove, and the bottom of the base being connected to the tension frame via a spring.

[0006] Preferably, a screw lifting mechanism is connected to the frame, and a grinding component is connected to the output end of the screw lifting mechanism.

[0007] Preferably, a gear is connected to the end side wall of the pressure shaft away from the tension frame. The gear meshes with the top of the second gear, which is rotatably connected to the tension frame. A sector tooth is connected to the bottom of the second gear, which meshes with the rack on the frame. The tension frame and the second gear are connected by a torsion spring, which is in a state of torsional storage of elastic potential energy.

[0008] Preferably, in the screw lifting mechanism, the output end of the lifting motor is connected to the bottom of the lifting screw, the lifting screw is threadedly connected to the lifting plate, the lifting plate is slidably connected to the frame, and a grinding component is connected to the lifting plate.

[0009] Preferably, the grinding component includes a motor, the lifting plate is connected to the motor, the output shaft of the motor is connected to the grinding roller through a connecting pipe, and the grinding roller is disposed between two pressure shafts.

[0010] Preferably, the bottom of the spring is connected to the top of the bearing plate, the bearing plate is slidably connected to the tension frame, a longitudinal hole is opened in the middle of the bearing plate, the longitudinal hole is slidably connected to the screw block, and the screw block is threadedly connected to one threaded part of the twin screw.

[0011] Preferably, the end of the twin screw is connected to the output end of the motor on the frame.

[0012] Preferably, two gears are rotatably connected to each side of the bottom of the support plate, and two support bars are connected to the frame to support the bottom of the gears. Each gear is oriented toward a rack, the end of which is rotatably connected to the frame. The support bars are adjacent to the end of the rack, the top surface of the middle part of the rack is oriented toward the center of the frame, and the other end of the rack away from the tension frame is positioned above its end. The bottom of the other end of the rack is in contact with the output end of the adjustment mechanism, and the bottoms of the two protrusions are positioned opposite each other.

[0013] Preferably, the adjusting mechanism includes: a lifting plate, which is slidably connected to the frame, with the top of each end of the lifting plate contacting the bottom of a connecting shaft, each connecting shaft being connected to the top of two adjacent racks, and bolts threaded onto the lifting plate, the bolts being rotatably connected to the frame.

[0014] Preferably, the two ends of the rack are rotatably connected to the mounting shaft on the frame, the mounting shaft is concentrically arranged with the second torsion spring, and the two ends of the second torsion spring are respectively connected to the frame and the second rack.

[0015] The beneficial effects of this invention are as follows:

[0016] In the solution of the present invention:

[0017] The device significantly reduces the difficulty of clamping and positioning the fabric ends by setting up a base, groove, pressure shaft and convex strip, increases the stability of the fabric during testing, and improves the accuracy of fabric testing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 This is a schematic diagram showing the relative positional relationship between the groove and the pressure shaft of the present invention;

[0020] Figure 3 This is a schematic diagram showing the meshing connection between the gear and gear two of the present invention;

[0021] Figure 4 This is a cross-sectional view of the main structure of the present invention;

[0022] Figure 5 This is a schematic diagram showing the sliding connection relationship between the longitudinal hole and the screw block in this invention;

[0023] Figure 6 This is a schematic diagram showing the connection relationship between the support plate and gear three in this invention;

[0024] Figure 7 This is a schematic diagram showing the connection relationship between the frame and the mounting shaft of the present invention;

[0025] Figure 8 This is a schematic diagram showing the location of the exhaust port in this invention.

[0026] The components include: 1. Frame; 2. Tension frame; 3. Base; 4. Groove; 5. Pressure shaft; 6. Spring; 7. Screw lifting mechanism; 8. Gear; 9. Gear II; 10. Sector tooth; 11. Rack; 12. Torsion spring; 13. Lifting screw; 14. Lifting plate; 15. Motor; 16. Connecting pipe; 17. Grinding roller; 18. Bearing plate; 19. Longitudinal hole; 20. Screw block; 21. Twin screw; 22. Motor II; 23. Convex bar; 24. Gear III; 25. Rack II; 26. Lifting plate; 27. Connecting shaft; 28. Torsion spring II; 29. ​​Bolt; 30. Mounting shaft; 31. Groove II; 32. Air extraction hole; 33. Air extraction chamber; 34. Pump housing; 35. Pipe; 36. Exhaust hole; 37. Fan blade; 38. Metal exhaust pipe; 39. Gear ring; 40. Gear IV; 41. Rotating shaft; 42. Gear V; 43. Gear VI; 44. Bearing bar; 45. Central rotating tooth; 46. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example 1: Reference Figures 1-8 A device for testing the abrasion resistance of knitted denim fabric includes: a frame 1, a tension frame 2, a base 3, a groove 4, a pressure shaft 5, and a spring 6. Two tension frames 2 are slidably connected to the frame 1, and a base 3 is slidably connected to each tension frame 2. The top of the base 3 has a groove 4. The pressure shaft 5 is rotatably connected to the tension frame 2. The protrusion 24 on the side of the pressure shaft 5 contacts and engages with the groove 4. The bottom of the base 3 is connected to the tension frame 2 through the spring 6.

[0029] The principle behind the above scheme is as follows:

[0030] Place both ends of the fabric on top of a base 3, then rotate the pressure shaft 5 and make the protrusion 24 of the pressure shaft 5 contact and engage with the groove 4. The spring 6 engages with the base 3 to apply elastic force to clamp the fabric. Further, based on the material of the fabric and the required test tension, increase the spacing between two tension frames 2 in the frame 1 and conduct an abrasion resistance test.

[0031] The beneficial effects of the above scheme are as follows:

[0032] The device, by setting up a base 3, a groove 4, a pressure shaft 5, and a protrusion 24, significantly reduces the difficulty of clamping and positioning the fabric ends, increases the stability of the fabric during testing, and improves the accuracy of fabric testing.

[0033] Example 2: Reference Figures 1-8 The frame 1 is connected to a screw lifting mechanism 7, and the output end of the screw lifting mechanism 7 is connected to a grinding component 8.

[0034] The principles and beneficial effects of the above scheme are as follows:

[0035] After the fabric is clamped, the screw lifting mechanism 7 is activated, and its output end drives the abrasive component 8 to move up and down to adjust the pressure on the fabric. Then, the screw lifting mechanism 7 is closed and the abrasive component 8 is activated to start the abrasion resistance test on the fabric. This improves the efficiency of fabric testing and also improves the accuracy of the pressure applied to the top of the fabric during the abrasion resistance test.

[0036] Example 3: Reference Figures 1-8 A gear 9 is connected to the end wall of the pressure shaft 5 away from the tension frame 2. The gear 9 is meshed with the top of the second gear 10. The second gear 10 is rotatably connected to the tension frame 2. A sector tooth 11 is connected to the bottom of the second gear 10. The sector tooth 11 is meshed with the rack 12 on the frame 1. The tension frame 2 and the second gear 10 are connected by a torsion spring 13. The torsion spring 13 is in a state of torsional storage of elastic potential energy.

[0037] The principles and beneficial effects of the above scheme are as follows:

[0038] When the two tension frames 2 move away from each other, the sector tooth 11 meshes with the rack 12, the rack 12 drives the gear 10 to rotate, the gear 10 drives the gear 9 that meshes with it to rotate, and then drives the pressure shaft 5 to rotate. During the rotation of the pressure shaft 5, the protrusion 24 connected to its side wall can contact and cooperate with the groove 4, thereby completing the automatic clamping of the fabric end, avoiding manual clamping operation and reducing workload.

[0039] When the device automatically clamps the fabric, it avoids manual operation, thereby preventing injury to the operator during the clamping process and improving the safety of the device during use.

[0040] This further improves the accuracy of the device in clamping the fabric, prevents the fabric from shifting during testing, and allows for accurate measurement results.

[0041] Before clamping the fabric, the torsion spring 13 is in a state of storing elastic potential energy. When the sector tooth 11 is engaged with the rack 12, the torsion spring 13 releases the stored elastic energy. After the sector tooth 11 and the rack 12 are engaged, that is, after the clamping of the fabric end is completed, the sector tooth 11 can be kept facing the end of the rack 12 under the action of the torsion spring 13 to prepare for the reverse engagement of the sector tooth 11 and the rack 12.

[0042] When the distance between the two tension frames 2 increases to a certain extent, the engagement between the sector tooth 11 and the rack 12 ends. Since the torsion spring 13 limits the position of the sector tooth 11, when the protrusion 24 can contact and engage with the groove 4, there is relative friction between the side of the sector tooth 11 and the top of the rack 12, so the sector tooth 11 will not rotate again. Therefore, the pressure shaft 5 will not rotate significantly, and the phenomenon of the protrusion 24 disengaging from the groove 4 will not occur. At the same time, the secondary engagement between the sector tooth 11 and the rack 12 can be guaranteed, which improves the rationality of the device's cyclic operation.

[0043] After clamping the fabric ends, the torsion spring 13 helps to limit the rotation of the pressure shaft 5, thereby preventing the fabric from falling off during testing.

[0044] When the sector tooth 11 and the rack 12 engage in reverse meshing, that is, when the two tension frames 2 approach each other, the torsion spring 13 torsionally stores energy again. Then, the pressure shaft 5 drives the convex strip 24 to reset, thereby releasing the end of the fabric that has completed the test, further improving the efficiency of the device during testing.

[0045] Example 4: Reference Figures 1-8 In the screw lifting mechanism 7, the output end of the lifting motor is connected to the bottom of the lifting screw 14, the lifting screw 14 is threadedly connected to the lifting plate 15, the lifting plate 15 is slidably connected to the frame 1, and a grinding part 8 is connected to the lifting plate 15.

[0046] The principles and beneficial effects of the above scheme are as follows:

[0047] After the fabric is fixed, the lifting motor is started. The output end of the lifting motor rotates forward, driving the lifting screw 14 to rotate forward. Under the sliding cooperation of the frame 1, the lifting plate 15 moves upward, and the abrasive part 8 reduces the pressure on the top surface of the fabric.

[0048] The output of the lifting motor reverses, causing the lifting screw 14 to reverse. Under the sliding cooperation of the frame 1, the lifting plate 15 moves downward. The grinding part 8 increases the pressure on the top surface of the fabric, reducing the difficulty of pressure adjustment during testing and improving the accuracy of pressure adjustment.

[0049] Example 5: Reference Figures 1-8 The grinding component 8 includes a motor 16, a connecting pipe 17, and a grinding roller 18. The lifting plate 15 is connected to the motor 16, and the output shaft of the motor 16 is connected to the grinding roller 18 through the connecting pipe 17. The grinding roller 18 is disposed between two pressure shafts 5.

[0050] The principles and beneficial effects of the above scheme are as follows:

[0051] During abrasion resistance testing, the rotation speed of the output shaft of motor 16 can be adjusted based on the different fabrics and test parameters, thereby adjusting the rotation speed of connecting pipe 17 and abrasion roller 18, so as to conduct different tests on the fabric and improve the convenience and practicality of the device during use.

[0052] Example 6: Reference Figures 1-8 The bottom of the spring 6 is connected to the top of the bearing plate 19, the bearing plate 19 is slidably connected to the tension frame 2, the bearing plate 19 has a longitudinal hole 20 in the middle, the longitudinal hole 20 is slidably connected to the screw block 21, and the screw block 21 is threadedly connected to one threaded part of the twin screw 22.

[0053] The end of the twin screw 22 is connected to the output end of the motor 23 on the frame 1.

[0054] The principles and beneficial effects of the above scheme are as follows:

[0055] After clamping the ends of the fabric, start motor 23. The output end of motor 23 rotates forward, driving the twin screws 22 to rotate forward. Under the sliding cooperation of frame 1, the screw block 21 in the longitudinal hole 20 drives the bearing plate 19 and tension frame 2 to move. At this time, the two tension frames 2 move away from each other. In this state, the tension of the fabric can be increased by pulling the two ends of the fabric.

[0056] The output end of motor 23 reverses, driving the twin screws 22 to reverse. Under the sliding engagement of the frame 1, the screw block 21 in the longitudinal hole 20 drives the bearing plate 19 and tension frame 2 to move. At this time, the two tension frames 2 approach each other. In this state, the tension of the fabric can be reduced. When the side of the fan tooth 11 meshes with the rack 12 in the opposite direction, the contact engagement between the convex strip 24 and the groove 4 ends, and the fabric is released, which further improves the efficiency of the device in releasing the fabric.

[0057] Example 7: Reference Figures 1-8Two gears 25 are rotatably connected to each side of the bottom of the support plate 19. Two support bars 45 are connected to the frame 1 to support the bottom of the gears 25. Each gear 25 is oriented toward a rack 26. The end of the rack 26 is rotatably connected to the frame 1. The support bars 45 are adjacent to the end of the rack 26. The top surface of the middle part of the rack 26 is oriented toward the center of the frame 1. The other end of the rack 26 away from the tension frame 2 is positioned above its end. The bottom of the other end of the rack 26 contacts and engages with the output end of the adjustment mechanism. The bottoms of the two protrusions 24 are positioned opposite each other.

[0058] The principles and beneficial effects of the above scheme are as follows:

[0059] When the two ends of the fabric are clamped, as the two tension frames 2 move away from each other, the gear 3 25 rotatably connected to the bottom of the support plate 19 meshes with the rack 2 26. The rack 2 26 applies an upward thrust to the support plate 19 through the gear 3 25. The screw block 21 slides downward relative to the support plate 19 in the longitudinal hole 20, thereby applying an upward thrust to the spring 6. Since the ends of the fabric have been clamped at this time, the spring 6 further applies an upward thrust to the base 3, further completing the complete clamping of the fabric ends. The rack 2 26 is inclined in the device. Therefore, when the distance between the two tension frames 2 increases, the pressure applied to the fabric by the base 3 further increases. Therefore, under higher tension, the fabric ends have a higher clamping force, thereby ensuring that the fabric will not fall off during testing and improving the safety of the device during use.

[0060] After the test is completed, gear 25 and rack 26 mesh in opposite directions, and screw block 21 slides upward relative to bearing plate 19 in longitudinal hole 20, ending the pressure applied to spring 6 from bottom to top, which facilitates the contact and cooperation between protrusion 24 and groove 4, preventing them from jamming, and can quickly release the clamping of the fabric end.

[0061] The function of the support bar 45 on the frame 1 is to temporarily support the gear 25 when the gear 25 and the rack 26 are not engaged, to prevent the device from failing to clamp the fabric end initially. The engagement of the gear 25 and the rack 26 increases or decreases the spring force of the spring 6. Compared with the direct sliding fit between the roller and the inclined plate, the wear of the plate can be avoided, and the lubrication of the roller can be avoided, which reduces the difficulty of device maintenance.

[0062] The device can be configured to apply tension only after the end of the fabric is fixed. That is, when applying tension, the rack 12 and the sector tooth 11 stop contacting each other. Since the sector tooth 11 stops meshing with the rack 12 and needs to perform the next reverse meshing connection, one tooth at the bottom of the sector tooth 11 will contact the top of the inner tooth of the rack 12, but there will be no meshing between the two parts, and the sector tooth 11 will not rotate. Even if the sector tooth 11 is subjected to pressure from the rack 12, it will only cause the sector tooth 11 to swing very slightly. The convex strip 24 will not fall out of the groove 4. The spring 6 can buffer the base 3 and absorb the pressure from the convex strip 24, so that the end of the fabric is always kept in the groove 4.

[0063] Example 8: Reference Figures 1-8 The adjustment mechanism includes a lifting plate 27, which is slidably connected to the frame 1. The top of each end of the lifting plate 27 is in contact with the bottom of a connecting shaft 28. Each connecting shaft 28 is connected to the top of two adjacent racks 26. A bolt 30 is threaded onto the lifting plate 27, and the bolt 30 is rotatably connected to the frame 1.

[0064] The end of the rack 26 is rotatably connected to the mounting shaft 31 on the frame 1. The mounting shaft 31 is concentrically arranged with the torsion spring 29. The two ends of the torsion spring 29 are respectively connected to the frame 1 and the rack 26.

[0065] The principles and beneficial effects of the above scheme are as follows:

[0066] Different fabrics have different strengths, so when clamping their ends, it is necessary to take into account all factors to prevent damage that could lead to inaccurate test results. Therefore, when the strength of the fabric is low, the lifting plate 27 needs to be adjusted downwards. At this time, the lifting plate 27, which is threadedly connected to the forward rotating bolt 30, moves downwards relative to the tension frame 2 under the sliding fit of the frame 1. Consequently, the connecting shaft 28, which is in contact with the top of the lifting plate 27, moves downwards, and the end of the rack 26 rotates counterclockwise relative to the mounting shaft 31. The torsion spring 29 releases its elastic potential energy, and the distance between the other end of the rack 26 and the top of the frame 1 decreases. Consequently, when the rack 26 meshes with the gear 3 25, the pressure applied to the base 3 decreases.

[0067] When the fabric strength is high, the lifting plate 27 needs to be adjusted upward. At this time, the lifting plate 27, which is threadedly connected to the reverse bolt 30, moves upward relative to the tension frame 2 under the sliding fit of the frame 1. Consequently, the connecting shaft 28, which contacts the top of the lifting plate 27, moves upward. The end of the rack 26 rotates clockwise relative to the mounting shaft 31. The torsion spring 29 stores elastic potential energy. The distance between the other end of the rack 26 and the top of the frame 1 increases. Consequently, when the rack 26 meshes with the gear 3 25, the pressure applied to the base 3 increases.

[0068] Lowering the other end of rack 26 can prevent damage to the fabric end during testing and avoid inaccurate test results due to changes in internal tension. Raising the other end of rack 26 can increase the clamping force on the fabric end, prevent the fabric from falling off during testing, and further improve the accuracy of the device during testing.

[0069] The torsion spring 29 can apply an auxiliary external force to the rack 26 and fix it, thereby preventing it from shaking up and down when it meshes with the gear 3 25, thus preventing the pressure applied to the fabric by the base 3 from changing and preventing the fabric from falling off during automatic clamping.

[0070] Example 9: Reference Figures 1-8 The grinding roller 18 has multiple grooves 32 on its sidewall, and multiple air extraction holes 33 are opened at the ends of the grooves 32. The other end of the air extraction hole 33 is opened on the inner wall of the air extraction chamber 34 inside the grinding roller 18. The air extraction chamber 34 is connected to the end of the connecting pipe 17. The end of the pump housing 35 is rotatably sealed on the sidewall of the connecting pipe 17. The pump housing 35 is fixed to the bottom of the lifting frame 15. The other end of the pump housing 35 is rotatably sealed to the sidewall of the pipe 36. The pipe 36 is rotatably connected to the connecting pipe 17. Multiple exhaust holes 37 are opened at the ends of the sidewall of the connecting pipe 17. The other end of the exhaust holes 37 is facing the pump housing 35. Multiple fan blades 38 are connected to the end of the pipe 36. The fan blades 38 are arranged inside the pump housing 35. The bottom of the pump housing 35 is connected to the end of the metal exhaust pipe 39.

[0071] The principles and beneficial effects of the above scheme are as follows:

[0072] When the grinding roller 18 is grinding, its sidewall comes into contact with the surface of the fabric. To prevent the debris on the fabric from being unable to be removed during testing, a groove 32 is provided on the sidewall of the grinding roller 18. The air extraction hole 33 opened on the sidewall of the groove 32 connects the air extraction chamber 34 of the grinding roller 18 to the outside. After the motor 16 is started, the air pressure in the connecting pipe 17 decreases, and the debris from the grinding of the fabric enters the air extraction hole 33 through the groove 32 and then enters the connecting pipe 17.

[0073] The principle of reducing air pressure in connecting pipe 17 is as follows: the rotation of pipe 36 drives the rotation of fan blade 38, thereby reducing the air pressure inside pump housing 35. Simultaneously, the air pressure in exhaust port 37 also decreases. As a result, debris can enter the interior of metal exhaust pipe 39 through suction port 33, connecting pipe 17, and exhaust port 37. Metal exhaust pipe 39 can be connected to a storage device in the prior art, such as a storage box, via a flexible hose for absorption. Debris removal can prevent the formation of a buffer layer on the surface of the fabric during abrasion resistance testing, thereby preventing changes in the friction conditions between the abrasion roller 18 and the fabric. Timely debris removal can also accurately determine the friction effect.

[0074] Since the pump casing 35 is fixed on the lifting frame 15 and rotates to seal with the connecting pipe 17 and the pipe 36, the sealing effect of the pump casing 35 is increased, further improving the efficiency of the device in collecting debris.

[0075] Example 10: Reference Figures 1-8 The side wall of the pipe 36 is connected to the inner wall of the toothed ring 40. The toothed ring 40 is connected to the gear 41 via the intermediate rotating tooth 46. The intermediate rotating tooth 46 is rotatably connected to the lifting frame 15. The gear 41 is connected to the rotating shaft 42. The rotating shaft 42 is rotatably connected to the lifting plate 15. The rotating shaft 42 is connected to the gear 43. The gear 43 is connected to the gear 44 on the output shaft of the motor 16.

[0076] The principles and beneficial effects of the above scheme are as follows:

[0077] When the mechanism is working, the gear 44 on the output shaft of the motor 16 rotates and drives the gear 43 meshing with it to rotate in reverse. The gear 43 drives the gear 41 to rotate in reverse on the lifting plate 15 through the rotating shaft 42. The gear 41 drives the gear ring 40 to rotate in reverse through the central rotating gear 46. Therefore, the rotation of the pipe 36 is opposite to that of the motor 16, and thus the rotation of the fan blade 38 is opposite to that of the connecting pipe 17, which can realize the suction of debris.

[0078] Example 11: Reference Figures 1-8 The other end of the fan blade 38 is connected to a discharge cone, the tip of which is positioned towards the inner wall of the pump housing 35. The discharge cone, fan blade 38, and pipe 36 are all made of conductive material. The connecting pipe 17 and pump housing 35 are made of insulating material. The pipe 36 is electrically connected to one electrode of the power supply through a conductive ring. The side wall of the metal exhaust pipe 39 is electrically connected to the other electrode of the power supply.

[0079] The principles and beneficial effects of the above scheme are as follows:

[0080] Due to the different compositions of the fabrics, some fabrics will exhibit electrostatic adsorption during polishing. At this time, one electrode of the power supply supplies power to the pipe 36 through the conductive ring, and the other electrode supplies power to the metal exhaust pipe 39. Since the discharge cone, fan blade 38, and pipe 36 are all made of conductive materials, while the connecting pipe 17 and pump housing 35 are made of insulating materials, when the fan blade 38 drives the discharge cone to rotate to a position coaxial with the metal exhaust pipe 39, the tip of the discharge cone begins to discharge, thereby removing static electricity from the debris and preventing the debris from adsorbing inside the mechanism and causing blockage.

[0081] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A device for detecting abrasion resistance of a knitted denim fabric, characterized in that, Include: Frame (1), two tension frames (2) are slidably connected on the frame (1), a base (3) is slidably connected on each tension frame (2), a groove (4) is opened at the top of the base (3), a pressure shaft (5) is rotatably connected on the tension frame (2), the convex strip (24) on the side of the pressure shaft (5) is in contact with the groove (4), the bottom of the base (3) is connected with the tension frame (2) through the spring (6); The frame (1) is connected with a screw lifting mechanism (7), and the output end of the screw lifting mechanism (7) is connected with a polishing part (8); The end wall of the pressure shaft (5) away from the tension frame (2) is connected with a gear (9), the gear (9) is engaged with the top of the gear two (10), the gear two (10) is rotatably connected on the tension frame (2), the bottom of the gear two (10) is connected with a sector gear (11), the sector gear (11) is engaged with the rack (12) on the frame (1), the tension frame (2) and the gear two (10) are connected through the torsional spring (13), and the torsional spring (13) is in a torsional storage elastic potential state; In the screw lifting mechanism (7), the output end of the lifting motor is connected with the bottom of the lifting screw (14), the lifting screw (14) is threadedly connected with the lifting plate (15), the lifting plate (15) is slidably connected with the frame (1), and the lifting plate (15) is connected with the polishing part (8); The polishing part (8) comprises a motor (16), the lifting plate (15) is connected with the motor (16), the output shaft of the motor (16) is connected with a polishing roller (18) through a connecting pipe (17), and the polishing roller (18) is arranged between the two pressure shafts (5).

2. The device for detecting abrasion resistance of a knitted denim fabric according to claim 1, wherein, The bottom of the spring (6) is connected with the top of the bearing plate (19), the bearing plate (19) is slidably connected with the tension frame (2), the middle part of the bearing plate (19) is provided with a longitudinal hole (20), the longitudinal hole (20) is slidably connected with a screw block (21), and the screw block (21) is threadedly connected with one screw thread part of a double screw (22).

3. A device for detecting abrasion resistance of a knitted denim fabric according to claim 2, wherein The end of the double screw (22) is connected with the output end of the motor two (23) on the frame (1).

4. The device for detecting abrasion resistance of a knitted denim fabric according to claim 3, wherein, Two gear threes (25) are rotatably connected on both sides of the bottom of the bearing plate (19), two bearing strips (45) are connected on the frame (1) to support the bottom of the gear three (25), each gear three (25) is arranged towards a rack two (26), the end of the rack two (26) is rotatably connected with the frame (1), the bearing strip (45) is arranged adjacent to the end of the rack two (26), the middle top surface of the rack two (26) is arranged towards the center of the frame (1), the other end of the rack two (26) is arranged above the end thereof away from the tension frame (2), the other end bottom of the rack two (26) is in contact with the output end of the adjusting mechanism, and the bottoms of the two convex strips (24) are oppositely arranged.

5. A device for detecting abrasion resistance of a knitted denim fabric according to claim 4, wherein The adjusting mechanism comprises a lifting piece (27) in sliding connection with the rack (1), the top of both ends of the lifting piece (27) is in contact and fit with the bottom of a connecting shaft (28), each connecting shaft (28) is connected with the top of two adjacent tooth bars two (26), a bolt (30) is threadedly connected on the lifting piece (27), and the bolt (30) is in rotary connection with the rack (1).

6. A device for detecting abrasion resistance of a knitted denim fabric according to claim 5, wherein The end of the tooth bar two (26) is in rotary connection with a mounting shaft (31) on the rack (1), the mounting shaft (31) is arranged concentrically with a torsion spring two (29), and the two ends of the torsion spring two (29) are connected with the rack (1) and the tooth bar two (26) respectively.

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