An automatic yarn clearing method and device for a ring spinning frame

Abstract

The present invention belongs to the technical field of ring spinning, and specifically relates to an automatic yarn clearing method and an automatic yarn clearing device for a spinning frame; the upper end surface of the guiding slide rail is uniformly fixed with spindle connecting rods, and the spindle connecting rods are rotatably connected to the bottom ends of the spindle rods; a sliding block is slidably arranged inside the guiding slide rail; a mounting seat is fixed to the side wall of the sliding block, and a micro motor is mounted on the bottom end surface of the mounting seat; the rotating wheel disc meshes with the uniformly arranged spindle connecting rods; sliding cavities are symmetrically formed in the upper side wall of the mounting seat, and sliding support bars are slidably mounted in the sliding cavities; one end of each sliding support bar is connected to the telescopic end of an electric telescopic rod, and the end of the arc-shaped sliding support bar is fixed with a cleaning cylinder through a fixing column; a cutting knife is fixedly arranged on the side wall of the cleaning cylinder; the automatic yarn clearing device can perform stable and efficient yarn clearing operations on the uniformly arranged spindle rods; the guiding and moving device is arranged on the side of the spindle base, thereby reducing the space occupied by the automatic yarn clearing device.

Description

Technical Field

[0001] The present invention belongs to the technical field of ring spinning, and specifically relates to an automatic yarn clearing method and an automatic yarn clearing device for a spinning frame. Background Art

[0002] During the production process of the spindle feet of the spindles of a ring spinning frame, some tail yarns often wind around them. After multiple doffings, a layer of yarn will wind and accumulate on the spindles, covering the knurling and causing the loss of friction at point A, which will further lead to the slipping of the yarn and its failure to wind around during subsequent doffing, thus affecting the spinning production.

[0003] A Chinese patent discloses an automatic cleaning device for the tail yarn of the spindles of a collective doffing spinning frame, with the patent application number 2015101312109. The driving mechanism includes a motor, a transmission belt, a driving wheel and a driven wheel. The motor is installed on one side of the frame, and its output end is connected to the driving wheel. The driven wheel is installed on the other side of the frame, and the transmission belt is sleeved on the driving wheel and the driven wheel; the yarn clearing device includes a seat body, a cutter for clearing the tail yarn on the spindle disk of the spindle and a yarn remover for clearing the tail yarn at the bottom of the spindle. The cutter is installed on the seat body, and the yarn remover with a toothed blade or / and a brush is installed on the seat body and located below the cutter. The seat body is fixedly connected to the transmission belt and is arranged on the guide rail and moves along the guide rail with the transmission belt. The automatic yarn clearing device of this spinning frame adopts the form of fixed motor drive and belt traction, fixes the yarn cutter on the traction belt, and moves back and forth uniformly along the guide rail, so as to cut the tail yarn wound around the spindle feet during high-speed rotation. The cut tail yarn is sucked away by the vacuum cleaner attached to the spinning frame.

[0004] The above patent is only applicable to some spinning frames with spindles driven by non-belts, which has limitations. For spinning frames with spindles driven by belts to rotate, it is difficult to install the automatic yarn clearing device due to the limited space inside the machine behind the spindles; at the same time, the cutter of the yarn cutter is fixed on one side of the spindle, and it is difficult to adjust the distance between the cutter on the yarn cutter and the spindle. When the thickness of the tail yarn wound on the spindle is too large, and when the cutter of the yarn cutter moves to point A of the next spindle, it is easy to cause the cutter to hit the high-speed rotating spindle, which will further lead to damage to the yarn cutter, not only affecting the efficient use of the yarn cutter, but also affecting the safe production of the spinning frame. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, the present invention provides an automatic yarn clearing method and an automatic yarn clearing device for a spinning frame. The present invention mainly solves the problems that the existing automatic yarn clearing device has limitations, and for spinning frames with spindles driven by belts to rotate, it is difficult to install the automatic yarn clearing device due to the limited space inside the machine behind the spindles; and the yarn cutter of the automatic yarn clearing device does not have an adjustment function, which leads to damage to the yarn cutter, not only affecting the efficient use of the yarn cutter, but also affecting the safe production of the spinning frame.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An automatic yarn cleaning method for a spinning frame according to the present invention includes the following steps:

[0007] S1: Winding on the spindle rod: When the yarn on the spinning bobbin is full, the collar plate drops, and the yarn will wind 3 - 4 more turns at point A on the spindle rod. At this time, the spinning bobbin full of yarn is removed, and the spinning yarn is broken.

[0008] S2: Replacing the new bobbin: A new empty bobbin tube is installed on the spindle rod. At this time, the collar plate moves up. With the high - speed rotation of the spindle rod, the yarn automatically winds on the empty bobbin tube to start the next cycle of spinning production.

[0009] S3: Cleaning the spindle rod: When a new empty bobbin tube is continuously installed for winding in step S2, the control system of the spinning frame controls the guiding and moving device on one side of the spindle base to move to the side of the evenly arranged spindle rods. Then the control system controls the cutting knife of the tail yarn removing device to extend to both sides of point A on the spindle rod. The cutting knife will remove the tail yarn wound at point A of the high - speed rotating spindle rod. The removed tail yarn is cleaned by a dust suction device; in this step, the guiding and moving device is arranged on the orderly arranged spindle rods. Using the orderly arranged spindle connecting rods as racks, a micro - motor drives a rotating wheel disc. When the rotating wheel disc moves to a spindle connecting rod, the tail yarn removing device will correspondingly remove the tail yarn wound at point A of the spindle rod, so that the automatic yarn cleaning device can perform stable and efficient yarn cleaning operations on the evenly arranged spindle rods; at the same time, the guiding and moving device is arranged on the side of the spindle base, thereby reducing the space occupied by the automatic yarn cleaning device.

[0010] S4: Recycling yarn cleaning: After the tail yarn wound at point A of one of the evenly arranged spindle rods is removed in step S3, the control system controls the cutting knife on the tail yarn removing device to retract to the initial position, and then the guiding and moving device continues to move along the evenly arranged spindle rods, thereby facilitating the recycling yarn cleaning operation for the tail yarn wound at point A of the next spindle rod.

[0011] An automatic yarn clearer for a spinning frame, which is applicable to the use of the above-mentioned automatic yarn clearing method; it includes a guiding and moving device and a tail yarn removing device; the guiding and moving device includes a guiding slide rail, a spindle connecting rod, a sliding block, a mounting seat, a micro motor and a rotating wheel disc; the guiding slide rail is fixed at the bottom end of the spindle base, and spindle connecting rods are uniformly fixed on the upper end surface of the guiding slide rail, and the spindle connecting rods are rotatably connected to the bottom end of the spindle rod; a sliding block is slidably arranged inside the guiding slide rail, and the cross section of the sliding block is a T-shaped structure; a mounting seat is fixed on the side wall of the sliding block, and a micro motor is mounted on the bottom end surface of the mounting seat; the output end of the micro motor passes through the mounting seat and is connected with a rotating wheel disc, and the rotating wheel disc meshes with the uniformly arranged spindle connecting rods;

[0012] Among them, the tail yarn removing device includes a sliding support bar, an electric telescopic rod, a cleaning cylinder and a cutting knife; sliding cavities are symmetrically opened on the upper end side wall of the mounting seat, and sliding support bars are slidably mounted in the sliding cavities; the outer end of the sliding support bar is arc-shaped; one end of the sliding support bar is connected to the telescopic end of the electric telescopic rod, and a cleaning cylinder is fixed to the end of the arc-shaped sliding support bar through a fixing column; a cutting knife is fixedly arranged on the side wall of the cleaning cylinder, and the cutting knife is arranged along the vertical direction of the spindle rod, and an electric heating wire is arranged on the cutting knife;

[0013] During operation, the evenly arranged spindle rods are all driven by belts to rotate at high speed; when it is necessary to remove the tail yarn wound around point A of the spindle rod, the controller controls the rotation of the micro motor (model: 86 series 750w DC brushless motor), uses the orderly arranged spindle connecting rods as racks, so that the rotating wheel disc can drive the sliding block and the mounting seat to slide on the guiding slide rail. When the tooth grooves on the rotating wheel disc are engaged with the spindle connecting rods, the symmetrically arranged sliding support bars on the mounting seat will move to both sides of the spindle rod. The controller controls the electric telescopic rod to extend, and the electric telescopic rod will drive the sliding support bars to slide to both sides of the spindle rod. The electric heating wire will heat the cutting knife. At the same time, the cutting knife arranged vertically on the cleaning cylinder will make vertical contact with the tail yarn wound around point A of the high-speed rotating spindle rod, so that the heated cutting knife will vertically cut off the tail yarn wound around point A. Since the end of the sliding support bar is arc-shaped, as the sliding support bar continuously extends, the distance between the symmetrically arranged cleaning cylinders decreases, which is convenient for removing the tail yarn with too large winding thickness, thus improving the efficient removal effect of the tail yarn wound on the spindle rod; after the tail yarn wound around point A of the spindle rod is removed, the controller controls the electric telescopic rod to quickly contract, so that the cutting knife is separated from the cleaned spindle rod, and then controls the micro motor to rotate, so that the rotating wheel disc rotates and engages with another spindle connecting rod, and then repeats the above steps, and the tail yarn wound around point A of the evenly arranged spindle rods can be efficiently removed. Since the rotation of the rotating wheel disc will engage with the corresponding spindle connecting rod, when the rotating wheel disc rotates to the next spindle connecting rod, the symmetrically arranged sliding support bars on the mounting seat will align with the corresponding spindle rod, which is convenient for accurately and efficiently removing the winding on the spindle rod;

[0014] Most of the existing automatic yarn cleaning devices of spinning frames adopt the form of fixed motor drive and belt traction, fix the yarn cutter on the traction belt, and move back and forth evenly along the guide rail, so as to cut off the tail yarn wound around the spindle foot during high-speed rotation. The cut tail yarn is sucked away by the vacuum cleaner attached to the spinning frame; this form is only applicable to some spinning frames with non-belt-driven spindles and has limitations. For spinning frames with spindles driven by belts, it is difficult to install the automatic yarn cleaning device due to the limited space inside the machine behind the spindles; at the same time, the cutting knife of the yarn cutter is fixed on one side of the spindle, and it is difficult to adjust the distance between the cutting knife on the yarn cutter and the spindle. When the thickness of the tail yarn wound on the spindle is too large and the cutting knife of the yarn cutter moves to point A of the next spindle, it is easy to cause the cutting knife to hit the high-speed rotating spindle, resulting in damage to the yarn cutter, which not only affects the efficient use of the yarn cutter, but also affects the safe production of the spinning frame.

[0015] Preferably, cutting blades are uniformly arranged at the end of the cutting knife, and a tapered bent piece is arranged between two adjacent cutting blades; the inclination direction of the end of the tapered bent piece is opposite to the rotation direction of the spindle rod; during operation, when the end of the cutting knife is in vertical contact with the wound end yarn, the hot cutting knife will first burn and break the wound end yarn, and then the end of the tapered bent piece will fit onto the side wall of the high-speed rotating spindle rod, and then the wound end yarn after breaking will be shoveled off. As the sliding support bar continuously extends, the distance between the cutting blades decreases, and then the end yarn attached to the spindle rod wall can be burned and broken. At the same time, the tapered bent piece can remove the end yarn adhered to the spindle rod due to burning during the high-speed rotation of the spindle rod, thereby improving the efficient removal of the end yarn on the spindle rod.

[0016] Preferably, an elastic buffer plate is arranged between the side wall of the cleaning cylinder and the sliding support bar, and the end of the elastic buffer plate is fitted to the inner wall of the sliding support bar; the width of the sliding cavity is greater than the width of the sliding support bar; during operation, when the electric telescopic rod drives the sliding support bar to quickly retract, the elastic buffer plate can contract into the gap between the sliding cavity and the sliding support bar, and then the elastic buffer plate can play a role in buffering and squeezing the cleaning cylinder, effectively preventing the cleaning cylinder arranged at the end of the sliding support bar from hitting the side wall of the mounting seat when the sliding support bar quickly contracts into the sliding cavity, thereby causing the cleaning cylinder to tilt, which in turn affects the efficient removal of the wound end yarn on the spindle rod by the cutting knife on the cleaning cylinder.

[0017] Preferably, a collection cavity is formed inside the elastic buffer plate, and dust suction holes are formed on the outer side wall of the collection cavity; the bottom end of the collection cavity is communicated with a dust suction hose, and the dust suction hose is communicated with a vacuum cleaner attached to the spinning frame; when the cutting knife cuts and cleans the end yarn wound on the outer wall of the spindle rod, since the inclination direction of the end of the tapered bent piece is opposite to the rotation direction of the spindle rod, when the tapered bent piece shovels off the end yarn wound on the spindle rod, the end yarn will hit the elastic buffer plate under the high-speed centrifugal force of the spindle rod, and then the suction force of the vacuum cleaner will suck the dust generated by the end yarn into the collection cavity through the dust suction holes through the dust suction hose, and then suck it into the vacuum cleaner through the dust suction hose for collection, thereby improving the quick collection of the end yarn dust after being shoveled off by the tapered bent piece and preventing the phenomenon of the shoveled end yarn flying around.

[0018] Preferably, an elastic rubber layer is wrapped around the outer wall of the cleaning cylinder, and a cutting knife is fixedly installed on the outer wall of the elastic rubber layer; during operation, when the sliding support rod drives the cleaning cylinder to slide to both sides of point A of the spindle rod, when the cutting knife arranged on the side wall of the cleaning cylinder comes into instant contact with the high-speed rotating spindle rod, the cutting knife will instantaneously swing on the outer wall of the cleaning cylinder, and thus the cutting knife connected through the elastic rubber layer can play an elastic buffering role, preventing the cutting knife from being rigidly connected to the cleaning cylinder. When the cutting knife contacts the side wall of the spindle rod at a high frequency, a fracture phenomenon occurs at the connection between the cutting knife and the cleaning cylinder, thereby affecting the service life of the cutting knife and the efficient and safe removal operation of the tail yarn wound around the outer wall of the spindle rod.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. Through the cooperation of the guiding and moving device and the tail yarn cleaning device of the present invention, when the rotating wheel disc is engaged with the spindle connecting rod driven by the micro motor, the symmetrically arranged sliding support bars will align to the position of point A of the corresponding spindle rod, and the cutting knife will perform a cutting and removing operation on the tail yarn wound around the high-speed rotating spindle rod. Without the need for an operator to control the position of the tail yarn removing device, the tail yarn wound on the spindle rod can be efficiently removed, so that the automatic yarn cleaning device can perform a stable and efficient yarn cleaning operation on the uniformly arranged spindle rods; at the same time, the guiding and moving device is arranged on the side of the spindle base, thereby reducing the space occupied by the automatic yarn cleaning device.

[0021] 2. The end of the sliding support bar of the present invention is arc-shaped. As the sliding support bar continuously extends, the distance between the symmetrically arranged cleaning cylinders decreases, thereby facilitating the removal of the tail yarn with too large a winding thickness, and thus improving the efficient removal effect of the tail yarn wound on the spindle rod; at the same time, the cutting knife and the cleaning cylinder are connected through an elastic rubber layer, which can prevent the connection between the cutting knife and the cleaning cylinder from breaking when the moving cutting knife comes into instant contact with the high-speed rotating spindle rod. Description of the Drawings

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 is the method flow chart of the present invention;

[0024] Figure 2 is the installation drawing of the automatic yarn cleaning device of the present invention;

[0025] Figure 3 is of the present invention Figure 2 partial cross-sectional view;

[0026] Figure 4 is the assembly drawing of the guiding and moving device and the tail yarn removing device of the present invention;

[0027] Figure 5 is a partial enlarged view of part B in the present invention Figure 4 in the figure;

[0028] In the figure: spindle rod 1, spindle base 2, guiding and moving device 3, guiding slide rail 31, spindle connecting rod 32, sliding block 33, mounting seat 34, sliding cavity 341, micro motor 35, rotating wheel disc 36, end yarn removing device 4, sliding support bar 41, electric telescopic rod 42, cleaning cylinder 43, cutting knife 5, cutting blade 51, conical bending piece 52, elastic buffer plate 6, collecting cavity 61, dust suction hole 62, dust suction hose 7, elastic rubber layer 8. Specific embodiments

[0029] Use Figures 1 - 5 A method and device for automatically clearing yarn of a spinning frame according to an embodiment of the present invention will be described as follows.

[0030] As Figures 1 - 5 shown, a method for automatically clearing yarn of a spinning frame according to the present invention includes the following steps:

[0031] S1: Winding of the spindle rod 1: When the yarn on the spinning bobbin is full, the collar plate drops, and the yarn will wind 3 - 4 more turns at point A on the spindle rod 1. At this time, the full - yarn spinning bobbin is removed, and the spinning yarn is broken.

[0032] S2: Replacement of the new bobbin: A new empty bobbin tube is installed on the spindle rod 1. At this time, the collar plate moves up. With the high - speed rotation of the spindle rod 1, the yarn automatically winds on the empty bobbin tube to start the next cycle of spinning production.

[0033] S3: Clearing of the spindle rod 1: When continuing to install a new empty bobbin tube for winding in step S2, the control system of the spinning frame controls the guiding and moving device 3 on one side of the spindle base 2 to move to the side of the uniformly arranged spindle rods 1. Then the control system controls the cutting knife 5 of the end yarn removing device 4 to extend to both sides of point A on the spindle rod 1. The cutting knife 5 clears the end yarn wound at point A of the high - speed rotating spindle rod 1, and the cleared end yarn is cleaned by a dust suction device; in this step, the guiding and moving device 3 is arranged on the orderly arranged spindle rods 1, using the orderly arranged spindle connecting rods 32 as racks, driving the rotating wheel disc 36 with the micro motor 35. When the rotating wheel disc 36 moves to a spindle connecting rod 32, the end yarn removing device 4 correspondingly clears the end yarn wound at point A of the spindle rod 1, so that the automatic yarn clearing device can perform stable and efficient yarn clearing operations on the uniformly arranged spindle rods 1; at the same time, the guiding and moving device 3 is arranged on the side of the spindle base 2, thereby reducing the space occupied by the automatic yarn clearing device.

[0034] S4: Loop Yarn Clearing: After the tail yarn wound at point A of one of the spindle rods 1 arranged uniformly is cleared in step S3, the control system controls the cutting knife 5 on the tail yarn clearing device 4 to retract to the initial position, and then the guiding and moving device 3 continues to move along the uniformly arranged spindle rods 1, so as to facilitate the loop yarn clearing operation for the tail yarn wound at point A of the next spindle rod 1.

[0035] As Figures 2 - 5 shown, an automatic yarn clearing device for a spinning frame according to the present invention is applicable to the use of the above-mentioned automatic yarn clearing method; it includes a guiding and moving device 3 and a tail yarn clearing device 4; the guiding and moving device 3 includes a guiding slide rail 31, a spindle connecting rod 32, a sliding block 33, a mounting seat 34, a micro motor 35 and a rotating wheel disc 36; the guiding slide rail 31 is fixed at the bottom end of the spindle base 2, and spindle connecting rods 32 are uniformly fixed on the upper end surface of the guiding slide rail 31, and the spindle connecting rods 32 are rotatably connected to the bottom end of the spindle rod 1; a sliding block 33 is slidably arranged inside the guiding slide rail 31, and the cross section of the sliding block 33 is of a T-shaped structure; a mounting seat 34 is fixed on the side wall of the sliding block 33, and a micro motor 35 is mounted on the bottom end surface of the mounting seat 34; the output end of the micro motor 35 passes through the mounting seat 34 and is connected to a rotating wheel disc 36, and the rotating wheel disc 36 meshes with the uniformly arranged spindle connecting rods 32;

[0036] Among them, the tail yarn clearing device 4 includes a sliding support bar 41, an electric telescopic rod 42, a cleaning cylinder 43 and a cutting knife 5; sliding cavities 341 are symmetrically opened on the upper side wall of the mounting seat 34, and sliding support bars 41 are slidably mounted in the sliding cavities 341; the outer end of the sliding support bar 41 is arc-shaped; one end of the sliding support bar 41 is connected to the telescopic end of the electric telescopic rod 42, and a cleaning cylinder 43 is fixed to the end of the arc-shaped sliding support bar 41 through a fixing column; a cutting knife 5 is fixed on the side wall of the cleaning cylinder 43, and the cutting knife 5 is arranged along the vertical direction of the spindle rod 1, and an electric heating wire is arranged on the cutting knife 5;

[0037] During operation, the evenly arranged spindle rods 1 are all driven by belts to rotate at high speed. When it is necessary to remove the trailing yarn wound around point A of the spindle rod 1, the controller controls the micro-motor 35 (model: 86 series 750w DC brushless motor) to rotate. Using the orderly arranged spindle connecting rods 32 as racks, the rotating wheel disc 36 can drive the sliding block 33 and the mounting seat 34 to slide on the guiding slide rail 31. When the tooth grooves on the rotating wheel disc 36 are engaged with the spindle connecting rods 32, the symmetrically arranged sliding support bars 41 on the mounting seat 34 will move to both sides of the spindle rod 1. The controller controls the electric telescopic rod 42 to extend, and the electric telescopic rod 42 will drive the sliding support bars 41 to slide to both sides of the spindle rod 1. The electric heating wire will heat the cutting knife 5. At the same time, the cutting knife 5 arranged vertically on the cleaning cylinder 43 will make vertical contact with the trailing yarn wound around point A of the high-speed rotating spindle rod 1, so that the heated cutting knife 5 will vertically cut off the trailing yarn wound around point A. Since the end of the sliding support bar 41 is arc-shaped, as the sliding support bar 41 continuously extends, the distance between the symmetrically arranged cleaning cylinders 43 decreases, which is convenient for removing the trailing yarn with too large a winding thickness, thereby improving the efficient removal effect of the trailing yarn wound on the spindle rod 1. When the trailing yarn wound around point A of the spindle rod 1 is removed, the controller controls the electric telescopic rod 42 to quickly contract, so that the cutting knife 5 is separated from the cleaned spindle rod 1. Then, the controller controls the micro-motor 35 to rotate, so that the rotating wheel disc 36 rotates and is engaged with another spindle connecting rod 32. Then, by repeating the above steps, the trailing yarn wound around point A of the evenly arranged spindle rods 1 can be efficiently removed. Since the rotation of the rotating wheel disc 36 will be engaged with the corresponding spindle connecting rod 32, when the rotating wheel disc 36 rotates to the next spindle connecting rod 32, the symmetrically arranged sliding support bars 41 on the mounting seat 34 will be aligned with the corresponding spindle rod 1, which is convenient for accurately and efficiently removing the trailing yarn wound on the spindle rod 1.

[0038] Most of the existing automatic yarn cleaning devices for spinning frames adopt the form of fixed motor drive and belt traction. The yarn cutter is fixedly installed on the traction belt and moves back and forth evenly along the guide rail, so as to cut off the trailing yarn wound around the spindle feet during high-speed rotation. The cut trailing yarn is sucked away by the vacuum cleaner attached to the spinning frame. This form is only applicable to some spinning frames where the spindles are not driven by belts, which has limitations. For spinning frames with spindles driven by belts, due to the limited space inside the machine behind the spindles, it is difficult to install the automatic yarn cleaning device. At the same time, the cutting knife of the yarn cutter is fixed on one side of the spindle, and it is difficult to adjust the distance between the cutting knife on the yarn cutter and the spindle. When the thickness of the trailing yarn wound on the spindle is too large, and when the cutting knife of the yarn cutter moves to point A of the next spindle, it is easy to cause the cutting knife to hit the high-speed rotating spindle, resulting in damage to the yarn cutter. This not only affects the efficient use of the yarn cutter, but also affects the safe production of the spinning frame.

[0039] As an implementation manner of the present invention, cutting blades 51 are uniformly arranged at the end of the cutting knife 5, and a tapered bent piece 52 is arranged between two adjacent cutting blades 51; the inclined direction of the end of the tapered bent piece 52 is opposite to the rotation direction of the spindle rod 1; during operation, when the end of the cutting knife 5 is in vertical contact with the wound end yarn, the hot cutting knife 5 will first burn and break the wound end yarn, and then the end of the tapered bent piece 52 will fit against the side wall of the high-speed rotating spindle rod 1, so as to shovel off the wound end yarn after breaking. As the sliding support strip 41 continuously extends, the distance between the cutting blades 51 decreases, so that the end yarn attached to the wall of the spindle rod 1 can be burned and broken. At the same time, the tapered bent piece 52 can shovel off the end yarn adhered to the spindle rod 1 due to burning during the high-speed rotation of the spindle rod 1, thereby improving the efficient removal operation of the end yarn on the spindle rod 1.

[0040] As an implementation manner of the present invention, an elastic buffer plate 6 is arranged between the side wall of the cleaning cylinder 43 and the sliding support strip 41, and the end of the elastic buffer plate 6 is attached to the inner wall of the sliding support strip 41; the width of the sliding cavity 341 is greater than the width of the sliding support strip 41; during operation, when the electric telescopic rod 42 drives the sliding support strip 41 to quickly retract, the elastic buffer plate 6 can contract into the gap between the sliding cavity 341 and the sliding support strip 41, so that the elastic buffer plate 6 can play a role in buffering and squeezing the cleaning cylinder 43, effectively preventing the cleaning cylinder 43 arranged at the end of the sliding support strip 41 from hitting the side wall of the mounting seat 34 when the sliding support strip 41 quickly contracts into the sliding cavity 341, resulting in the inclination of the cleaning cylinder 43, which in turn affects the efficient removal operation of the end yarn wound on the spindle rod 1 by the cutting knife 5 on the cleaning cylinder 43.

[0041] As an implementation manner of the present invention, a collection cavity 61 is formed inside the elastic buffer plate 6, and dust suction holes 62 are formed on the outer side wall of the collection cavity 61; the bottom end of the collection cavity 61 is communicated with a dust suction hose 7, and the dust suction hose 7 is communicated with a vacuum cleaner attached to the spinning frame; when the cutting knife 5 cuts and cleans the end yarn wound on the outer wall of the spindle rod 1, since the inclined direction of the end of the tapered bent piece 52 is opposite to the rotation direction of the spindle rod 1, when the tapered bent piece 52 shovels off the end yarn wound on the spindle rod 1, the end yarn will hit the elastic buffer plate 6 under the high-speed centrifugal force of the spindle rod 1. Then, the suction force of the vacuum cleaner will suck the dust generated by the end yarn into the collection cavity 61 through the dust suction holes 62 through the dust suction hose 7, and then suck it into the vacuum cleaner through the dust suction hose 7 for collection, thereby improving the rapid collection operation of the end yarn dust after being shoveled off by the tapered bent piece 52 and preventing the phenomenon of the flying of the end yarn after being shoveled off.

[0042] As an implementation manner of the present invention, an elastic rubber layer 8 is wrapped around the outer wall of the cleaning cylinder 43, and a cutting knife 5 is fixedly installed on the outer wall of the elastic rubber layer 8; during operation, when the sliding support rod drives the cleaning cylinder 43 to slide to both sides of the A position of the spindle rod 1, when the cutting knife 5 provided on the side wall of the cleaning cylinder 43 comes into instantaneous contact with the high-speed rotating spindle rod 1, the cutting knife 5 will instantaneously swing on the outer wall of the cleaning cylinder 43. Furthermore, the cutting knife 5 connected through the elastic rubber layer 8 can play an elastic buffering role, preventing the cutting knife 5 and the cleaning cylinder 43 from being rigidly connected. When the cutting knife 5 contacts the side wall of the spindle rod 1 at a high frequency, a fracture phenomenon occurs at the connection between the cutting knife 5 and the cleaning cylinder 43, thereby affecting the service life of the cutting knife 5 and the efficient and safe removal operation of the cutting knife 5 for the tail wire wound around the outer wall of the spindle rod 1.

[0043] The specific working process is as follows:

[0044] When it is necessary to remove the tail yarn wound at the A position of the spindle rod 1, the controller controls the micro motor 35 to rotate. Using the orderly arranged spindle connecting rods 32 as racks, the rotating wheel disc 36 can drive the sliding block 33 and the mounting seat 34 to slide on the guiding slide rail 31. When the tooth grooves on the rotating wheel disc 36 are engaged with the spindle connecting rods 32, the symmetrically arranged sliding support bars 41 on the mounting seat 34 will move to both sides of the spindle rod 1. The controller controls the electric telescopic rod 42 to extend, and the electric telescopic rod 42 will drive the sliding support bar 41 to slide to both sides of the spindle rod 1. The electric heating wire will heat the cutting knife 5. At the same time, the cutting knife 5 arranged vertically on the cleaning cylinder 43 will come into vertical contact with the tail wire wound at the A position of the high-speed rotating spindle rod 1, so that the heated cutting knife 5 will vertically cut off the tail wire wound at the A position. Since the end of the sliding support bar 41 is arc-shaped, as the sliding support bar 41 continuously extends, the distance between the symmetrically arranged cleaning cylinders 43 decreases, which is convenient for removing the tail wire with too large winding thickness, thereby improving the efficient removal effect of the tail wire wound on the spindle rod 1; after the tail wire wound at the A position of the spindle rod 1 is removed, the controller controls the electric telescopic rod 42 to quickly contract, so that the cutting knife 5 is separated from the cleaned spindle rod 1. Then, the controller controls the micro motor 35 to rotate, so that the rotating wheel disc 36 rotates and engages with another spindle connecting rod 32. Then, by repeating the above steps, the tail wire wound at the A position of the uniformly arranged spindle rods 1 can be efficiently removed.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0046] Although the present invention is illustrated by specific embodiments, those skilled in the art should understand that various transformations and equivalent substitutions can be made to the present invention without departing from the scope of the present invention. Additionally, various modifications can be made to the present invention for specific situations or materials without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of the present invention.

Claims

1. An automatic yarn clearing method for a ring spinning frame, characterized in that: The method includes the following steps: S1: Winding on the spindle rod (1): When the yarn on the spinning bobbin is full, the collar plate drops, and the yarn will wind 3 - 4 more turns at point A on the spindle rod (1). At this time, the spinning bobbin full of yarn is removed, and the spinning yarn is broken. S2: Replacing the new bobbin: A new empty bobbin is installed on the spindle rod (1). At this time, the collar plate moves up. With the high-speed rotation of the spindle rod (1), the yarn automatically winds on the empty bobbin to start the next cycle of spinning production. S3: Clearing the yarn on the spindle rod (1): When continuing to install a new empty bobbin for winding in step S2, the control system of the spinning frame will control the guiding and moving device (3) on one side of the spindle base (2) to move to the side of the uniformly arranged spindle rods (1). Then the control system controls the cutter of the tail yarn clearing device (4) to extend to both sides of point A on the spindle rod (1). The cutting knife (5) will clear the tail yarn wound at point A of the high-speed rotating spindle rod (1). The cleared tail yarn is cleaned through the dust suction device; the cutting knife (5) is arranged along the vertical direction of the spindle rod (1), and an electric heating wire is arranged on the cutting knife (5). S4: Recycling yarn clearing: After clearing the tail yarn wound at point A of one of the uniformly arranged spindle rods (1) in step S3, the control system controls the cutting knife (5) on the tail yarn clearing device (4) to retract to the initial position. Then the guiding and moving device (3) continues to move along the uniformly arranged spindle rods (1), thereby facilitating the recycling clearing operation of the tail yarn wound at point A of the next spindle rod (1).

2. An automatic yarn clearer for a ring spinning frame, characterized in that: This automatic yarn clearing device is applicable to the use of the automatic yarn clearing method described in claim 1 above; it includes a guiding and moving device (3) and a tail yarn clearing device (4); the guiding and moving device (3) includes a guiding slide rail (31), a spindle connecting rod (32), a sliding block (33), a mounting seat (34), a micro motor (35) and a rotating wheel disc (36); the guiding slide rail (31) is fixed at the bottom end of the spindle base (2), and the upper end surface of the guiding slide rail (31) is uniformly fixed with spindle connecting rods (32), and the spindle connecting rods (32) are rotatably connected to the bottom end of the spindle rod (1); a sliding block (33) is slidably arranged inside the guiding slide rail (31), and the cross section of the sliding block (33) is a T-shaped structure; a mounting seat (34) is fixed on the side wall of the sliding block (33), and a micro motor (35) is installed on the bottom end surface of the mounting seat (34); the output end of the micro motor (35) passes through the mounting seat (34) and is connected with a rotating wheel disc (36), and the rotating wheel disc (36) meshes with the uniformly arranged spindle connecting rods (32). Among them, the tail yarn removing device (4) includes a sliding support bar (41), an electric telescopic rod (42), a cleaning cylinder (43) and a cutting knife (5); sliding cavities (341) are symmetrically formed in the upper side wall of the mounting seat (34), and sliding support bars (41) are slidably installed in the sliding cavities (341); the outer ends of the sliding support bars (41) are arc-shaped; one end of the sliding support bar (41) is connected to the telescopic end of the electric telescopic rod (42), and a cleaning cylinder (43) is fixed to the arc-shaped end of the sliding support bar (41) through a fixing column; a cutting knife (5) is fixedly arranged on the side wall of the cleaning cylinder (43); the cutting knife (5) is arranged along the vertical direction of the spindle rod (1), and an electric heating wire is arranged on the cutting knife (5).

3. The automatic yarn clearer for a spinning frame according to claim 2, wherein: Cutting blades (51) are uniformly arranged at the end of the cutting knife (5), and a tapered bending piece (52) is arranged between two adjacent cutting blades (51); the inclination direction of the end of the tapered bending piece (52) is opposite to the rotation direction of the spindle rod (1).

4. An automatic yarn clearer for a ring spinning frame according to claim 3, characterized in that: An elastic buffer plate (6) is arranged between the side wall of the cleaning cylinder (43) and the sliding support bar (41), and the end of the elastic buffer plate (6) is attached to the inner wall of the sliding support bar (41); the width of the sliding cavity (341) is greater than the width of the sliding support bar (41).

5. The automatic yarn clearer for a ring spinning frame according to claim 4, wherein: A collection cavity (61) is formed inside the elastic buffer plate (6), and dust suction holes (62) are formed in the outer side wall of the collection cavity (61); the bottom end of the collection cavity (61) is communicated with a dust suction hose (7), and the dust suction hose (7) is communicated with a vacuum cleaner attached to the spinning frame.

6. The automatic yarn clearer for a spinning frame according to claim 5, characterized in that: The outer wall of the cleaning cylinder (43) is wrapped with an elastic rubber layer (8), and a cutting knife (5) is fixedly installed on the outer wall of the elastic rubber layer (8).

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