An ultra-low nep carding machine

Abstract

This application relates to textile processing equipment, and specifically discloses an ultra-low nep carding machine, which includes a frame. Linkage rods are provided at the ends of the rotating shafts of the stripping roller and the doffer. An arc-shaped guide groove coaxial with the stripping roller is formed on the frame, and a slider slidably mounted on the arc-shaped guide groove is sleeved at the end of the rotating shaft of the doffer; a detection mechanism for detecting the accumulation amount of defective cotton fibers on the cleaning roller is provided on the frame. The detection mechanism is controllably connected to a jog switch. A driving assembly for driving the slider to move away from the cylinder is provided on the frame, and the jog switch is controllably connected to the driving assembly; a reset assembly for driving the slider to reset when the jog switch does not control the driving assembly to work is also provided on the frame. In this application, when the accumulation of defective cotton fibers on the cleaning roller is excessive, the distance between the doffer and the cylinder can be automatically enlarged, and after the adjustment is completed, it can be automatically reset to the high-speed processing state.

Description

Technical Field

[0001] The present application relates to the field of textile processing, and particularly to an ultra-low nep carding machine. Background Art

[0002] The working principle of a carding machine is to loosen, card, and remove impurities from the cotton (fiber) lap sent by the previous process or the oiled cotton (chemical fiber) layer supplied by the cotton box, so that all the curly and lumpy cotton loops become single fiber shapes that are basically straightened. During this process, the broken seeds, impurities, and short lint left over from the cotton cleaning process are removed, and then cotton strips of a certain specification are integrated and stored in the cotton cylinder for use in the drawing process.

[0003] Existing carding machines generally include a frame, a feeding box, a feeding roller, a licker-in, a cylinder, a doffer, a stripping roller, a sliver former, a revolving flat, a front stationary flat, and a rear stationary flat. Among them, the licker-in mainly performs preliminary carding and impurity removal on the cotton fibers, and transfers the cotton fibers from below the rear stationary flat to the cylinder; the cylinder then strips and brings the cotton fibers under the revolving flat for further carding and straightening, and then transfers the cotton fibers from below the front stationary flat to the doffer; the doffer then strips and removes impurities from the carded cotton fibers, and the stripping roller transfers the cotton fibers to the sliver former. If the carding ability of the licker-in or the stripping ability of the doffer decreases, a large number of neps will be formed, affecting the carding quality.

[0004] In the related art, a Chinese patent with the publication number CN111733489A proposed a carding machine with an adjustable licker-in position, including a frame. A feeding roller is movably connected inside the frame, a feeding plate is movably connected below the feeding roller, and a licker-in is movably connected to the left side of the feeding plate. This machine drives the gear to rotate through a gear shaft, and then drives the movable rod and the slider to move inward, pushing the push plate forward. The clamping mechanism on the left side of the push plate will push the licker-in bearing forward, thereby adjusting the distance between the licker-in and the cylinder. This enhances the carding and impurity removal ability of the licker-in, enabling the fibers on the licker-in to be transferred to the cylinder more efficiently.

[0005] For the above related art, in actual production, after the doffer strips the cotton fibers on the cylinder, the stripping roller transfers them, and a cleaning roller is further provided to clean the stripping roller to reduce the possibility of the carded cotton fibers generating neps again; however, in order to improve the transfer efficiency of the cotton fibers between the cylinder and the doffer and reduce the probability of the cotton fibers on the cylinder being re-carded to form neps, the distance between the doffer and the cylinder is usually set to be close enough. In this case, once there is a large amount of cotton fibers cleaned from the stripping roller on the cleaning roller, the residual cotton fibers on the cleaning roller will exacerbate the impact on the cotton fibers on the stripping roller, resulting in more neps being generated. Summary of the Invention

[0006] In order to improve the problem that the accumulation of defective cotton fibers on the cleaning roller increases due to the too close distance between the doffer and the cylinder, resulting in the generation of cotton knots on the stripping roller, the present application provides an ultra-low cotton knot carding machine.

[0007] The ultra-low cotton knot carding machine provided by the present application adopts the following technical solutions:

[0008] An ultra-low cotton knot carding machine includes a frame. A licker-in, a cylinder, a doffer, a stripping roller, a transfer roller and a pressure roller are sequentially and rotatably installed on the frame. A cleaning roller that abuts against the stripping roller is also rotatably provided on the frame. A linkage rod is also provided on the frame, with both ends thereof rotatably sleeved on the ends of the rotating shafts of the stripping roller and the doffer respectively. An arc-shaped guide groove coaxial with the stripping roller is provided on the frame. A slider slidably installed on the arc-shaped guide groove is sleeved on the end of the rotating shaft of the doffer.

[0009] A detection mechanism for detecting the accumulation amount of defective cotton fibers on the cleaning roller is provided on the frame. The detection mechanism is controllably connected to a momentary switch. A driving component for driving the slider to move away from the cylinder is provided on the frame. The momentary switch is controllably connected to the driving component.

[0010] A reset component for driving the slider to reset when the momentary switch does not control the driving component to work is further provided on the frame.

[0011] By adopting the above technical solutions, when the carding machine of the present application is working, after the doffer transfers the cotton fibers carded on the cylinder to the stripping roller, the stripping roller then transfers the cotton fibers to the transfer roller. During this process, the cleaning roller cleans the stripping roller after the cotton fibers are transferred. When the gap between the doffer and the cylinder is too close, resulting in too large a cotton fiber transmission amount, causing a large amount of defective cotton fibers to accumulate on the cleaning roller, it is detected by the detection mechanism. The detection mechanism controls the driving mechanism through the momentary switch to drive the two sliders at both axial ends of the doffer to move synchronously away from the cylinder, automatically changing the distance between the doffer and the cylinder, reducing the cotton fiber processing amount between the cylinder and the doffer, thereby giving the cleaning roller sufficient self-cleaning buffer time, reducing the amount of defective cotton fibers on the cleaning roller, and further reducing the probability of the cleaning roller generating cotton knots on the stripping roller.

[0012] Under the control of the momentary switch, the driving component will only drive the doffer away from the cylinder when the detection mechanism detects excessive defective cotton fibers. Once the defective cotton fibers on the cleaning roller are cleaned and not detected by the detection mechanism, the reset component will drive the slider to reset, that is, to make the doffer return to the initial distance from the cylinder, ensuring the processing efficiency of the cotton fibers in the present application while ensuring that the cleaning roller does not generate cotton knots on the stripping roller as much as possible.

[0013] Optionally, the detection mechanism comprises a detection cylinder rotatably mounted on the frame, the axis of the detection cylinder is parallel to the axis of the cleaning roller, a plurality of detection heads arranged along the axial direction are fixedly connected to the outer periphery of the arc surface of the detection cylinder, and the detection heads are matched with the protruding concave and convex parts on the cleaning roller;

[0014] The frame is provided with a rotating assembly for driving the detection cylinder to rotate to an initial state, and a control rod is fixedly connected to the arc-surface outer peripheral wall of the detection cylinder; when the detection head is moved by the residual cotton fibers accumulated on the cleaning roller, the control rod triggers the inching switch to turn on.

[0015] By adopting the above technical solution, when a large amount of residual cotton fibers are accumulated on the cleaning roller and are not cleaned up in time, the detection head on the detection cylinder that contacts the cleaning roller pushes the detection cylinder to rotate on the frame under the push of the accumulated product cotton fibers. When the detection cylinder rotates, the control rod triggers the inching switch to turn on, so as to realize the automatic adjustment of the distance between the doffer and the cylinder. When the residual cotton fibers on the cleaning roller are self-cleaned, the detection head cannot drive the detection cylinder to continue to maintain the rotated state, so the detection cylinder rotates to the initial state under the rotation of the rotating component. At this time, the control rod is separated from the triggering of the inching switch, the inching switch is closed, and the doffer is also reset under the action of the reset component, and the cotton carding machine of the present application is restored to the initial high-efficiency working state.

[0016] Optionally, a plurality of detection cylinders are arranged along the axial direction of the cleaning roller, and the total length of the plurality of detection cylinders is not less than the length of the cleaning roller.

[0017] By adopting the above technical solution, after multiple detection cylinders are provided, the resistance required to rotate a single detection cylinder is reduced, which can significantly improve the detection accuracy of the detection mechanism for the accumulation of residual cotton fibers on the cleaning roller.

[0018] Optionally, the driving assembly includes two connecting rods respectively hinged on the two sliding blocks and fixed rods rotatably mounted on the two connecting rods at both ends, the fixed rod is connected to a driving rod, a driving cylinder is sleeved on the driving rod, a spiral groove is provided on the inner wall of the driving cylinder, a convex column slidingly adapted to the spiral groove is fixedly connected to the driving rod, a driving member for driving the driving cylinder to rotate is provided on the frame, and the driving member is electrically connected to the moment switch.

[0019] By adopting the above technical solution, when the jog switch controls the driving member to start, the driving member drives the driving cylinder to rotate. When the driving cylinder rotates, the driving rod realizes the displacement along the axial direction of the driving cylinder through the spiral groove arranged on the inner wall thereof and the convex column fixedly connected to the driving rod. Thus, the driving rod drives the fixed rod, the connecting rod and the slider to move, and further the position of the doffer can be adjusted. And when the convex column slides in the spiral groove, it has a certain self-locking property, that is, by setting the spiral angle of the spiral groove, it can be realized that only when the driving cylinder rotates, the convex column will move under the guiding action of the spiral groove, and the situation that the driving cylinder rotates when the driving rod moves by pushing the convex column will not occur. Thus, after the driving assembly adjusts the position of the doffer, without actively rotating the driving cylinder, the position of the doffer is fixed, which improves the stability of the carding machine of the application during operation.

[0020] Optionally, an adjusting cylinder is sleeved on the outer periphery of the driving cylinder in a threaded manner, and a locking nut is also threadedly connected to the outer periphery of the driving cylinder. The driving member is used to drive the adjusting cylinder to rotate.

[0021] By adopting the above technical solution, when the driving cylinder is rotated in the adjusting cylinder, the position of the driving rod in the initial state can be adjusted, that is, the distance between the doffer and the cylinder of the carding machine of the application during normal operation can be adjusted. After the adjustment is completed, rotating the locking nut can lock the driving cylinder and the adjusting cylinder to ensure the relative static state between the driving cylinder and the adjusting cylinder after the adjustment is completed.

[0022] Optionally, the reset assembly includes a first torsional elastic member installed on the frame. One end of the first torsional elastic member is fixedly connected to the frame, and the other end is fixedly connected to the adjusting cylinder.

[0023] By adopting the above technical solution, when the adjusting cylinder rotates under the drive of the driving member, the first torsional elastic member is twisted and deformed. When the driving member is powered off and closed, the torsional deformation force of the first torsional elastic member drives the adjusting cylinder to rotate reversely to the initial state, thereby realizing the reset of the distance between the doffer and the cylinder.

[0024] Optionally, a plurality of guide rods perpendicular to the fixed rod and passing through the fixed rod are fixedly connected to the frame.

[0025] By adopting the above technical solution, the setting of the guide rods can improve the stability of the fixed rod during the movement process, and further ensure the stability of the doffer during the rotation process.

[0026] Optionally, the rotary assembly is set as a second torsional elastic member with one end fixedly connected to the end face of the detection cylinder and the other end fixedly connected to the frame. An installation plate arranged along the axial direction thereof is fixedly connected to the outer periphery of the arc surface of the detection cylinder, and a plurality of the detection heads are installed on the installation plate.

[0027] By adopting the above technical solution, when the detection head drives the detection cylinder to rotate under the push of the residual cotton fibers, the second torsion elastic member is twisted and deformed; when the resistance of the residual cotton fibers on the cleaning roller to the detection head is reduced, the detection cylinder is reset under the torsion deformation force of the second torsion elastic member. The installation plate not only provides space for the installation of the second torsion elastic member, but also ensures that multiple detection heads can fully detect the cleaning roller.

[0028] Optionally, the driving member includes an outer gear ring coaxially fixed to the outer periphery of the adjusting cylinder, a driving gear meshingly connected to the outer gear ring, and a reduction motor for driving the driving gear to rotate; the frame is provided with a locking mechanism for unlocking or locking the outer gear ring when the momentary switch is turned on or off.

[0029] By adopting the above technical solution, when the inching switch is triggered, the locking mechanism is controlled to release the lock of the outer gear ring and control the reduction motor to start inching, and the reduction motor drives the driving gear to rotate and drives the outer gear ring and the adjustment cylinder fixed thereto to rotate, thereby realizing the position adjustment of the driving rod and the position adjustment of the slider and the doffer. When the inching switch is not triggered, the reduction motor stops and the locking mechanism locks the outer gear ring, which can ensure the stability of the doffer during operation.

[0030] Optionally, the locking mechanism includes an arc-shaped rack rotatably arranged on the frame, the arc-shaped rack meshingly matching with the outer gear ring, and a power part for driving the arc-shaped rack to approach or move away from the outer gear ring is arranged on the frame, and the power part is electrically connected to the inching switch.

[0031] By adopting the above technical solution, when the moment switch is triggered, the power member drives the arc-shaped rack to rotate until it is disengaged from the outer gear ring; when the moment switch is triggered and stops, the power member maintains a state of pushing the arc-shaped rack to engage with the outer gear ring.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. When the distance between the doffer and the cylinder is close for a long time, a large amount of residual cotton fibers are accumulated on the cleaning roller and detected by the detection mechanism. The detection mechanism controls the driving mechanism through the inching switch to drive the two sliders at both ends of the doffer axis to move synchronously in the direction away from the cylinder, which can automatically increase the distance between the doffer and the cylinder, reduce the cotton fiber processing amount between the cylinder and the doffer, thereby giving the cleaning roller sufficient self-cleaning buffer time, reducing the amount of residual cotton fibers on the cleaning roller, and further reducing the probability of the cleaning roller generating cotton knots on the cotton stripping roller; and once the residual cotton fibers on the cleaning roller are cleaned and not detected by the detection mechanism, the reset component will drive the slider to reset, that is, the doffer is restored to the initial distance from the cylinder, which can effectively ensure the processing efficiency of the cotton fibers in this application;

[0034] 2. When the jog switch controls the driving member to start, the displacement of the driving rod along the axial direction of the driving cylinder is realized through the spiral groove arranged on the inner wall of the driving cylinder and the convex column fixedly connected to the driving rod, which can make the driving rod drive the fixed rod, the connecting rod and the slider to move, so as to adjust the position of the doffer; and when the convex column slides in the spiral groove, it has a certain self-locking property. Without driving the driving cylinder to rotate actively, the position of the doffer is fixed, which improves the stability of the carding machine of the application during operation;

[0035] 3. The adjusting cylinder and the locking nut are screwed on the outer periphery of the driving cylinder, so that the distance between the doffer and the cylinder of the carding machine of the application can be adjusted during normal operation. After the adjustment is completed, rotating the locking nut can lock the driving cylinder and the adjusting cylinder to ensure the relative static state between the driving cylinder and the adjusting cylinder after the adjustment is completed. Brief Description of the Drawings

[0036] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0037] Figure 2 is the partial cross-sectional structural schematic diagram of the embodiment of the present application.

[0038] Figure 3 is Figure 2 the enlarged schematic diagram of part A in

[0039] Figure 4 is along Figure 1 the cross-sectional structural schematic diagram taken along line B-B in

[0040] Figure 5 is Figure 1 the enlarged schematic diagram of part C in

[0041] Description of the Reference Numerals: 1, frame; 11, saw-tooth cylinder; 12, cylinder; 13, doffer; 14, stripping roller; 15, transfer roller; 16, pressure roller; 17, cleaning roller; 21, linkage rod; 22, arc-shaped guide groove; 23, slider; 3, jog switch; 41, detection cylinder; 42, detection head; 43, control rod; 44, second torsional elastic member; 45, mounting plate; 51, connecting rod; 52, fixed rod; 53, driving rod; 531, convex column; 54, driving cylinder; 541, spiral groove; 55, adjusting cylinder; 56, locking nut; 57, guide rod; 6, first torsional elastic member; 71, external gear ring; 72, driving gear; 73, reduction motor; 81, arc-shaped rack; 82, power member. Detailed Description of the Embodiment

[0042] The following further describes the present application in detail with reference to the attached Figures 1-5 drawings.

[0043] An embodiment of the present application discloses an ultra-low nep carding machine. Refer to Figure 1 and Figure 2 , the ultra-low nep carding machine includes a frame 1, on which a licker-in 11, a cylinder 12, a doffer 13, a stripping roller 14, a transfer roller 15 and a pressure roller 16 are sequentially rotatably installed. A cleaning roller 17 that abuts against the stripping roller 14 is also rotatably installed on the frame 1. A linkage rod 21 with both ends rotatably sleeved on the end portions of the rotating shafts of the stripping roller 14 and the doffer 13 respectively is further provided on the frame 1. An arc-shaped guide groove 22 coaxial with the stripping roller 14 is formed on the frame 1. A slider 23 slidably installed on the arc-shaped guide groove 22 is sleeved on the end portion of the rotating shaft of the doffer 13; specifically, when setting, the above-mentioned linkage rod 21, arc-shaped guide groove 22 and slider 23 are provided at both axial ends of the doffer 13.

[0044] Refer to Figure 2 and Figure 3 , a detection mechanism for detecting the accumulation amount of defective cotton fibers on the cleaning roller 17 is provided on the frame 1. The detection mechanism is controllably connected to a momentary switch 3. A driving assembly for driving the slider 23 to move away from the cylinder 12 is provided on the frame 1. The momentary switch 3 is controllably connected to the driving assembly; a reset assembly for driving the slider 23 to reset when the momentary switch 3 does not control the driving assembly to work is further provided on the frame 1.

[0045] In this way, when the carding machine of the present application is working, when the gap between the doffer 13 and the cylinder 12 is too close, resulting in too large a cotton fiber transmission amount, and a large amount of defective cotton fibers accumulates on the cleaning roller 17, it is detected by the detection mechanism. The detection mechanism controls the driving mechanism through the momentary switch 3 to drive the two sliders 23 at both axial ends of the doffer 13 to move synchronously away from the cylinder 12, which can automatically increase the distance between the doffer 13 and the cylinder 12, and always keep the distance between the doffer 13 and the stripping roller 14 through the control of the linkage rod 21. Thereby reducing the cotton fiber processing amount between the cylinder 12 and the doffer 13, giving sufficient self-cleaning buffer time to the cleaning roller 17, reducing the amount of defective cotton fibers on the cleaning roller 17, and further reducing the probability of cotton knots generated by the cleaning roller 17 on the stripping roller 14, so that the probability of generating cotton knots when the carding machine of the present application processes cotton fibers is extremely low.

[0046] Under the control of the momentary switch 3, the driving assembly will only drive the doffer 13 away from the cylinder 12 when the detection mechanism detects excessive defective cotton fibers; once the defective cotton fibers on the cleaning roller 17 are cleaned and not detected by the detection mechanism, the reset assembly will drive the slider 23 to reset, that is, to make the doffer 13 return to the initial distance from the cylinder 12, ensuring the processing efficiency of the carding machine of the present application for cotton fibers while ensuring that the cleaning roller 17 does not generate cotton knots on the stripping roller 14 as much as possible.

[0047] Specifically, in order to realize the convenient detection of the residual cotton fibers accumulated on the cleaning roller 17, refer to Figure 2 and Figure 3 The detection mechanism includes a detection cylinder 41 rotatably mounted on the frame 1 and a rotating assembly for driving the detection cylinder 41 to rotate to an initial state. The axis of the detection cylinder 41 is parallel to the axis of the cleaning roller 17. A plurality of detection heads 42 arranged along the axial direction are fixedly connected to the arcuate outer periphery of the detection cylinder 41. The detection heads 42 are adapted to the protruding grooves on the cleaning roller 17. A control rod 43 is fixedly connected to the side of the arcuate outer peripheral wall of the detection cylinder 41 away from the detection head 42. When the detection head 42 is moved by the residual cotton fibers accumulated on the cleaning roller 17, the control rod 43 triggers the inching switch 3 to turn on.

[0048] And in order to improve the detection accuracy of the detection agency, refer to Figure 2 and Figure 3 , multiple detection cylinders 41 are arranged along the axial direction of the cleaning roller 17, and the total length of the multiple detection cylinders 41 is not less than the length of the cleaning roller 17. Among them, the rotary assembly is set as a second torsion elastic member 44 with one end fixed to the end surface of the detection cylinder 41 and the other end fixed to the frame 1. The arc surface outer periphery of the detection cylinder 41 is fixed with a mounting plate 45 arranged along its axial direction. Multiple detection heads 42 are installed on the mounting plate 45. The gap between two adjacent mounting plates 45 is not greater than 1mm or it is preferably not to affect the free rotation of the two mounting plates 45.

[0049] In this way, when each detection cylinder 41 detects the local position of the cleaning roller 17, the resistance required to turn a single detection cylinder 41 is reduced, which can significantly improve the detection accuracy of the detection mechanism for the accumulation of residual cotton fibers on the cleaning roller 17; when the detection head 42 drives the detection cylinder 41 to rotate under the push of the residual cotton fibers, the second torsion elastic member 44 is twisted and deformed, and the detection cylinder 41 triggers the momentary switch 3 to turn on through the control rod 43 when rotating, so as to realize the automatic adjustment of the distance between the doffer 13 and the cylinder 12. When the resistance of the residual cotton fibers on the cleaning roller 17 to the detection head 42 is reduced, the detection cylinder 41 is reset under the torsional deformation force of the second torsion elastic member 44, and at this time the control rod 43 is separated from the triggering of the momentary switch 3, the momentary switch 3 is closed, and the doffer 13 is also reset under the action of the reset component, and the cotton carding machine of the present application is restored to the initial high-efficiency working state.

[0050] At the same time, considering that the gap adjustment between the cylinder 12 and the doffer 13 is relatively precise, and the various components of the cotton carding machine of the present application will vibrate or even resonate when rotating, in order to ensure that after the gap between the above two is adjusted, the normal working state of the doffer 13 is not affected by the vibration of the machine.

[0051] Reference Figure 4 and Figure 5, this application is further limited in that the driving assembly includes two connecting rods 51 respectively hinged to two sliders 23 and a fixing rod 52 rotatably mounted at both ends on the two connecting rods 51, and a driving rod 53 is fixedly connected to the fixing rod 52; and a plurality of guide rods 57 orthogonal to the fixing rod 52 and passing through the fixing rod 52 are fixedly connected to the frame 1. At the same time, a driving cylinder 54 is sleeved on the driving rod 53, a spiral groove 541 is formed in the inner wall of the driving cylinder 54, a convex column 531 slidably adapted to the spiral groove 541 is fixedly connected to the driving rod 53, and a driving member for driving the driving cylinder 54 to rotate is arranged on the frame 1, and the driving member is electrically connected to the momentary switch 3. At the same time, the above-mentioned reset assembly includes a first torsional elastic member 6 installed on the frame 1, one end of the first torsional elastic member 6 is fixedly connected to the frame 1 and the other end is fixedly connected to the adjusting cylinder 55.

[0052] In this way, when the momentary switch 3 controls the driving member to start, the driving member drives the driving cylinder 54 to rotate. When the driving cylinder 54 rotates, the displacement of the driving rod 53 along the axial direction of the driving cylinder 54 is realized through the spiral groove 541 arranged on the inner wall thereof and the convex column 531 fixedly connected to the driving rod 53, so that the driving rod 53 drives the fixing rod 52, the connecting rod 51 and the slider 23 to move, and thus the position of the doffer 13 can be adjusted. When the momentary switch 3 is not triggered, no driving force is applied to the driving cylinder 54, and the deformation force after the first torsional elastic member 6 is twisted drives the driving cylinder 54 to rotate reversely to reset, so that the doffer 13 is restored to maintain the initial distance from the cylinder 12.

[0053] And the convex column 531 has a certain self-locking property when sliding in the spiral groove 541, that is, by setting the spiral angle of the spiral groove 541, it can be realized that only when the driving cylinder 54 rotates, the convex column 531 will move under the guiding action of the spiral groove 541, and there will be no situation where the driving rod 53 moves and drives the driving cylinder 54 to rotate through the convex column 531. Therefore, after the driving assembly adjusts the position of the doffer 13, the position of the doffer 13 is fixed without actively rotating the driving cylinder 54, improving the stability of the carding machine of this application during operation.

[0054] At the same time, to further enrich the multi-functional adjustment effect of the driving assembly, referring to Figure 4 and Figure 5 , an adjusting cylinder 55 threadedly connected thereto is further sleeved on the outer peripheral side of the driving cylinder 54, and a locking nut 56 is also threadedly connected to the outer periphery of the driving cylinder 54, and the driving member is used to drive the adjusting cylinder 55 to rotate.

[0055] In this way, when the driving cylinder 54 is rotated in the adjusting cylinder 55, the position of the driving rod 53 in the initial state can be adjusted, that is, the distance between the doffer 13 and the cylinder 12 of the cotton carding machine of the present application when it is working normally can be adjusted. After the adjustment is completed, the locking nut 56 is rotated to press against the driving cylinder 54 to lock the driving cylinder 54 and the adjusting cylinder 55, thereby ensuring the relative static state between the driving cylinder 54 and the adjusting cylinder 55 after the adjustment is completed.

[0056] And, refer to Figure 4 and Figure 5 The above-mentioned driving member includes an outer gear ring 71 coaxially fixed to the outer periphery of the adjusting cylinder 55, a driving gear 72 meshingly connected to the outer gear ring 71, and a reduction motor 73 for driving the driving gear 72 to rotate, and the output end of the reduction motor 73 and the rotating shaft of the driving gear 72 are transmission-connected via a ratchet and pawl structure. For example, a ratchet is coaxially fixed to the output end of the reduction motor 73, and a disc is coaxially fixed to the rotating shaft of the driving gear 72, and a pawl adapted to the ratchet is hinged on the disc. Specifically, when the moment switch 3 is triggered and the deceleration electric start is started, the locking transmission of the ratchet pawl can drive the driving gear 72 to rotate at a low speed to increase the distance between the doffer 13 and the cylinder 12; when the moment switch 3 is not triggered, the deceleration motor 73 is stopped, and the adjustment cylinder 55 is flipped under the deformation force of the first torsional elastic member 6, which can drive the outer ring gear 71 and the driving gear 72 and the pawl on the disc to rotate, but at this time the pawl cannot lock the ratchet, and the driving gear 72 rotates relative to the output end of the deceleration motor 73, so the driving cylinder 54 can be freely reversed, that is, the autonomous reset of the doffer 13 after being controlled to move away from the cylinder 12 is realized.

[0057] At the same time, refer to Figure 4 and Figure 5 The frame 1 is provided with a locking mechanism for unlocking or locking the outer gear ring 71 when the inching switch 3 is turned on or off; the locking mechanism includes an arc-shaped rack 81 rotatably arranged on the frame 1, and the arc-shaped rack 81 is meshed and matched with the outer gear ring 71. The frame 1 is provided with a power member 82 for driving the arc-shaped rack 81 to approach or move away from the outer gear ring 71. The power member 82 is set as an electric push rod, and the piston rod of the power member 82 is movably hinged to the arc-shaped rack 81; the power member 82 is also electrically connected to the inching switch 3. If necessary, a controller can be further provided between the inching switch 3 and the power member 82 to control the two states of extending and retracting the piston rod of the power member 82.

[0058] Therefore, when the jog switch 3 is triggered, it controls the arc-shaped rack 81 to release the locking of the external gear ring 71 and controls the jog start of the reduction motor 73. The reduction motor 73 drives the driving gear 72 to rotate, drives the external gear ring 71 and the adjusting cylinder 55 fixedly connected thereto to rotate, and further realizes the position adjustment of the driving rod 53 and the position adjustment of the slider 23 and the doffer 13. When the jog switch 3 is triggered and stopped, the reduction motor 73 stops, and the arc-shaped rack 81 locks the external gear ring 71, which can ensure the stability during the operation of the doffer 13.

[0059] The implementation principle of an ultra-low nep carding machine according to an embodiment of the present application is as follows: When the carding machine of the present application is working, when the gap between the doffer 13 and the cylinder 12 is too close, resulting in an excessive cotton fiber transmission volume, and a large amount of waste cotton fibers are accumulated on the cleaning roller 17, it is detected by the detection cylinder 41, and the detection rod triggers the jog switch 3 to control the rotation of the driving cylinder 54, so that the driving rod 53 drives the fixed rod 52 and the two sliders 23 hinged thereto to move synchronously away from the cylinder 12, which can automatically increase the distance between the doffer 13 and the cylinder 12, reduce the cotton fiber processing volume between the cylinder 12 and the doffer 13, thereby giving the cleaning roller 17 sufficient self-cleaning buffer time, reducing the amount of waste cotton fibers on the cleaning roller 17, and further reducing the probability of nep formation on the stripping roller 14 by the cleaning roller 17, so that the probability of nep formation when the carding machine of the present application processes cotton fibers is extremely low.

[0060] Under the control of the jog switch 3, the driving assembly only drives the doffer 13 away from the cylinder 12 when the detection head 42 detects excessive waste cotton fibers; once the waste cotton fibers on the cleaning roller 17 are cleaned and not detected by the detection mechanism, the reset assembly will drive the slider 23 to reset, that is, to make the doffer 13 return to the initial distance from the cylinder 12, ensuring that the carding machine of the present application has a high processing efficiency for cotton fibers while ensuring that the cleaning roller 17 does not generate neps on the stripping roller 14 as much as possible.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An ultra-low nep carding machine, comprising a frame (1), on which a licker-in roller (11), a cylinder (12), a doffer (13), a stripping roller (14), a transfer roller (15) and a pressure roller (16) are rotatably mounted in sequence, and a cleaning roller (17) is rotatably mounted on the frame (1) and abuts against the stripping roller (14). Features: The frame (1) is also provided with a linkage rod (21) whose two ends are rotatably sleeved on the ends of the rotating shafts of the cotton stripping roller (14) and the doffer (13), respectively; the frame (1) is provided with an arc-shaped guide groove (22) coaxial with the cotton stripping roller (14); the end of the rotating shaft of the doffer (13) is sleeved with a slider (23) slidably mounted on the arc-shaped guide groove (22); The frame (1) is provided with a detection mechanism for detecting the amount of residual cotton fibers accumulated on the cleaning roller (17); the detection mechanism is control-connected to a jog switch (3); the frame (1) is provided with a drive assembly for driving the slider (23) to move in a direction away from the cylinder (12); the jog switch (3) is control-connected to the drive assembly; The frame (1) is also provided with a reset component for driving the slider (23) to reset when the inching switch (3) fails to control the driving component to work; The detection mechanism comprises a detection cylinder (41) rotatably mounted on the frame (1), the axis of the detection cylinder (41) being parallel to the axis of the cleaning roller (17), a plurality of detection heads (42) arranged along the axial direction of the detection cylinder (41) being fixedly connected to the arc surface outer periphery of the detection cylinder (41), the detection heads (42) being adapted to the protruding concave and convex portions on the cleaning roller (17); The frame (1) is provided with a rotating assembly for driving the detection cylinder (41) to rotate to an initial state, and a control rod (43) is fixedly connected to the arc-surface outer peripheral wall of the detection cylinder (41); when the detection head (42) is moved by the residual cotton fibers accumulated on the cleaning roller (17), the control rod (43) triggers the inching switch (3) to turn on; The driving assembly comprises two connecting rods (51) respectively hinged on the two sliding blocks (23) and a fixing rod (52) whose two ends are rotatably mounted on the two connecting rods (51), the fixing rod (52) is connected with a driving rod (53), a driving cylinder (54) is sleeved on the driving rod (53), a spiral groove (541) is provided on the inner wall of the driving cylinder (54), a convex column (531) slidably matched with the spiral groove (541) is fixedly connected to the driving rod (53), and a driving member for driving the driving cylinder (54) to rotate is provided on the frame (1), and the driving member is electrically connected to the inching switch (3); The outer circumference of the driving cylinder (54) is threadedly sleeved with an adjusting cylinder (55), and the outer circumference of the driving cylinder (54) is also threadedly connected with a locking nut (56), and the driving member is used to drive the adjusting cylinder (55) to rotate; The reset component includes a first torsional elastic member (6) mounted on the frame (1), one end of the first torsional elastic member (6) is fixedly connected to the frame (1), and the other end is fixedly connected to the adjusting cylinder (55).

2. An ultra-low nep carding machine according to claim 1, wherein: A plurality of the detection cylinders (41) are arranged along the axial direction of the cleaning roller (17), and the total length of the plurality of detection cylinders (41) is not less than the length of the cleaning roller (17).

3. An ultra-low nep carding machine according to claim 1, wherein: A plurality of guide rods (57) which are orthogonally arranged with the fixed rod (52) and penetrate through the fixed rod (52) are fixedly connected to the frame (1).

4. An ultra-low nep carding machine according to claim 1, wherein: The rotating component is a second torsional elastic member (44) with one end fixedly connected to the end face of the detection cylinder (41) and the other end fixedly connected to the frame (1). An installation plate (45) arranged along its axial direction is fixedly connected to the outer circumference of the arc surface of the detection cylinder (41), and a plurality of the detection heads (42) are installed on the installation plate (45).

5. An ultra-low nep carding machine according to claim 1, wherein: The driving member includes an external gear ring (71) coaxially fixedly connected to the outer circumference of the adjusting cylinder (55), a driving gear (72) meshed and connected with the external gear ring (71), and a reduction motor (73) for driving the driving gear (72) to rotate; a locking mechanism for unlocking or locking the external gear ring (71) when the jog switch (3) is turned on or off is arranged on the frame (1).

6. An ultra-low nep carding machine according to claim 5, wherein: The locking mechanism includes an arc-shaped rack (81) rotatably arranged on the frame (1), the arc-shaped rack (81) is in meshing fit with the external gear ring (71), a power member (82) for driving the arc-shaped rack (81) to approach or depart from the external gear ring (71) is arranged on the frame (1), and the power member (82) is electrically connected to the jog switch (3).

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