CN115404578B

CN115404578B - Method and device for piecing ring spinning yarn

Info

Publication number: CN115404578B
Application number: CN202211179136.4A
Authority: CN
Inventors: 吕汉明; 武玉涛
Original assignee: Tianjin Polytechnic University
Current assignee: Tianjin Polytechnic University
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-08-08
Anticipated expiration: 2042-09-27
Also published as: CN115404578A

Abstract

The invention relates to a ring spinning yarn splicing method and a device, in particular to a ring spinning yarn splicing method and a device, wherein one end of a splicing yarn with elasticity is wound on the outer side of a hollow structure yarn winding retainer to form a polygonal or circular yarn ring, the yarn ring is sleeved on the outer side of a cop by utilizing the yarn winding retainer after passing through a steel wire ring, and then the splicing yarn passes through a yarn guide hook to be spliced by a winding roller.

Description

Method and device for piecing ring spinning yarn

Technical Field

Background

In the textile industry, a ring spinning frame is one of the most important production devices, after the spinning frame breaks, a blocking machine is generally required to pull the cop from the spindle, find the yarn end of the cop, insert the cop onto the spindle after the yarn end passes through the bead ring, and splice the spun yarn onto the whisker strip output by the front roller after passing through the yarn guide hook, so that no matter how many joints are arranged between one pipe of spun yarn, the joint process is complex, and the automation of the joint process is not easy to realize.

Since the seventies of the twentieth century, the ring spinning automatic splicing technology has begun to appear, but the technology at that time is not perfect enough and is difficult to popularize and utilize in factory production. The blue-and-white FIL-A-MAT type automatic piecing device is developed by a base Yu Qingze 320 type spinning frame, the piecing device is provided with a U-shaped track, the track surrounds the outer ring of the spinning frame, the piecing device automatically advances on the track, when the piecing device is found to be broken, the piecing device is stopped before the corresponding spindle, is fixed on a ring rail, extends out of a bracket for piecing operation, firstly searches for broken ends on a bobbin, the bead ring is fixed at a determined position by a set of positioning system, and finally leads yarns to an output roller through a swinging rod to pass through all positions, so that piecing is completed. After the joint is finished, the photoelectric detection device judges whether the joint is successful or not. The Filasol automatic joint device can automatically check the joint and stop the related spindle, find out the broken joint from the bobbin, pass through the bead ring and the yarn guide hook, and finish the joint in front of the front roller jaw. The automatic spindle is braked firstly by the Sepal type connector, then the yarn tube is pulled out, the yarn end is held after the yarn end is found, and the cop is re-inserted, the steel wire ring is penetrated, the balloon ring and the yarn guide hook. In 2019, the company RIETER in Switzerland has proposed a ROBOspin automatic piecing robot matched with a G38 ring spinning frame, wherein a mechanical arm is used for taking out a broken end from a bobbin, then the broken end sequentially passes through a bead ring and a yarn guide hook, and finally the yarn is introduced into a jaw of a front roller to finish piecing. The spain pint company and langwei company of india each developed a break joint device.

Although an automatic joint device for a ring spinning frame has been developed at present, an automatic joint of a ring spinning frame can be completed, there are some related patents of the automatic joint of the ring spinning at home and abroad, but the practical feasibility, the success rate of operation and the like have obvious problems, on one hand, the automatic joint success rate is not high enough, the joint time is long, and particularly the success rate of finding out broken ends on cop after the broken ends of the spun yarn is not high enough, so that the joint success rate of an automatic joint technology with a finding link is low, on the other hand, the joint device has a complex structure and high price and is not suitable for being popularized and applied in a large scale. In recent years, the technology of fine winding and the technology of automatic tube feeding, tube management, head generation and tube feeding matched with an automatic winder are mature gradually and popularized and applied on a large scale, and the process of winding a second section of spun yarn onto a bobbin is repeated until all the spun yarn on the spun yarn is wound up on the spun yarn on the premise that the spun yarn contains a plurality of sections of discontinuous spun yarn on the spun yarn during the winding process. That is, the automatic empty bobbin identification and sorting, automatic bobbin yarn conveying, automatic bobbin yarn end-spinning and automatic bobbin yarn feeding system matched with the automatic bobbin winder at present has the capability of automatically processing spun yarn bobbin yarns spun by sections.

In view of the above problems and the background, the invention discloses a ring spinning yarn splicing method and a device, when ring spinning yarn breaks, the ring spinning yarn splicing method and the device utilize a section of elastic yarn splicing, firstly hang the middle position of the elastic yarn splicing into a steel wire ring, envelope one end of the elastic yarn splicing onto the cop according to the twisting direction of spinning, and rapidly pass the other end of the elastic yarn splicing upwards through a yarn guiding hook and then wind between a front roller and a leather roller to realize splicing and continue spinning.

Compared with the existing ring spinning yarn splicing technology, the ring spinning yarn splicing method and device provided by the invention have the advantages that the complexity of splicing operation is reduced, the operations such as tube drawing and yarn head finding are not needed, the work is more stable and reliable, the automatic splicing after the ring spinning yarn breakage is realized, and the method and device can be used for spinning after doffing is finished and the head is left unsuccessful.

Disclosure of Invention

The invention provides a ring spinning yarn splicing method and a device, which solve the technical problems of the prior art, and the solution is as follows:

a ring spinning yarn splicing method is characterized in that after the yarn breaks during the spinning process of the ring spinning yarn, the method is spliced according to the following steps:

the first step: winding one end of the joint yarn on a yarn winding retainer with a hollow structure to form a polygonal or circular yarn ring;

The yarn winding holder is a claw-type structure or a tubular-type structure hollow part which can be sleeved outside the cop, the claw-type structure is characterized in that the yarn winding holder is provided with at least three parallel rod-shaped parts, the yarn winding holder is provided with a structure for clamping the yarn of the joint, the yarn of the joint is wound on the claw-type structure yarn winding holder, the yarn of the joint is wound on the outer side of the parallel rod, the tubular-type structure is characterized in that the yarn winding holder is a tubular part, and the yarn of the joint is wound on the tubular-type structure yarn winding holder, namely the yarn of the joint is wound on the outer side of the tubular structure; the yarn winding holder is provided with a yarn winding layer, a yarn winding layer and a yarn winding layer, wherein the yarn winding layer is arranged on the yarn winding holder;

and a second step of: hanging the joint yarn which is not wound on the winding holder at the position close to the winding holder into the bead ring;

and a third step of: sleeving a yarn winding retainer around which the joint yarn is wound on the outer side of the cop, and sleeving the yarn winding retainer downwards from the top of the cop tube to the center of the cop tube when sleeving the yarn winding retainer on the outer side of the cop tube, so that a parallel rod or a cylindrical part of the yarn winding retainer and the joint yarn wound outside the parallel rod or the cylindrical part of the yarn winding retainer are positioned on the outer side of the cop tube, and the yarn winding retainer is lowered to a position close to the height of the ring;

Fourth step: the yarn splicing device withdraws the yarn splicing yarn wound on the yarn winding retainer from the yarn winding retainer, the withdrawn yarn connecting coil is contracted and sleeved outside the yarn tube or the cop, and the yarn winding retainer leaves the cop position to a position which does not affect the subsequent joint position;

fifth step: passing the joint yarn positioned on one side of the bead ring far away from the yarn tube through a yarn guide hook, wherein the yarn guide hook is a winding-in yarn guide hook;

sixth step: the method comprises the steps of connecting the joint yarn passing through a yarn guide hook with the whisker strips sent out between a front roller and a leather roller in a hanging manner of a winding leather roller, wherein the hanging manner of the winding leather roller means that the joint yarn is cut off from the shaft end side of the leather roller, the joint yarn is fed between the roller and the leather roller at the feeding side of the roller, or the joint yarn is held to enable the joint yarn to be broken by the roller and the leather roller, and the joint yarn and the whisker strips after the roller draft are held and conveyed out by the roller and the leather roller, so that the joint yarn and the whisker strips are connected; when the ring spinning frame is a compact spinning frame and the connector yarn is hung in a 'winding roller' mode, the connector yarn can be wound by a roller corresponding to the front roller, or can be wound by a roller corresponding to the grid ring, and even the winding of the connector yarn by the roller corresponding to the middle roller is not excluded;

The third step or the fourth step is to brake the spindle before stopping the spindle to rotate, and the fifth step is to loosen the spindle brake after the fifth step and before the sixth step of the joint yarn feeding roller and the leather roller to start the spindle to rotate for twisting the yarn;

if the ring spinning frame is provided with a balloon ring, the third step is to penetrate the joint yarn between the steel wire ring and the winding retainer into the balloon ring before the winding retainer is sleeved outside the cop, and the fifth step is to penetrate the joint yarn on one side of the steel wire ring far away from the cop into the balloon ring before the joint yarn penetrates the yarn guide hook, wherein the penetrating of the balloon ring means winding into the balloon ring;

the ring spinning yarn splicing method can wind the splicing yarn on the winding yarn retainer in advance before splicing, is beneficial to shortening the splicing time, and can splice yarn spindles without yarn on the bobbin caused by yarn-starting failure of yarn-starting, and due to the adoption of the elastic splicing yarn, even if the diameter of a yarn coil wound outside the winding yarn retainer is larger than that of the bobbin yarn, the yarn coil can be wrapped on the bobbin yarn due to elastic shrinkage of the splicing yarn.

A ring spinning yarn joint device comprises a first moving platform, a second moving platform, a yarn outlet device, a yarn winding device, a yarn pressing device and a yarn stopping device;

The first moving platform at least has the degree of freedom of horizontal movement along the length direction of the spinning frame, is a mounting base component of the ring spinning yarn joint device and is used for bearing other parts of the ring spinning yarn joint device;

the second moving platform is arranged on the first moving platform through a second moving platform guiding device, the second moving platform driving device drives the second moving platform to have the freedom degree of vertical lifting relative to the first moving platform and the freedom degree of horizontal movement perpendicular to the length direction of the spinning frame, the second moving platform driving device only plays a role of lifting the second moving platform in the vertical direction, and the second moving platform descends by virtue of self weight; a rod-shaped ring plate gripper protruding out of the second moving platform is arranged on one side, close to the spinning frame, of the second moving platform, when the second moving platform is lifted to the position, which is higher than the highest limit position of the ring plate, of the ring plate gripper arranged on the second moving platform along the vertical direction and starts to fall after the second moving platform is horizontally moved to the limit position, which is closest to the spinning frame, along the length direction of the spinning frame, the ring plate gripper arranged on the second moving platform can be lapped on the ring plate in the falling process of the second moving platform, the ring plate supports the second moving platform to enable the second moving platform to move along with the ring plate in a lifting manner, and when a single-ingot breakage detection sensor is arranged on the ring plate, the ring plate gripper can be lapped on a single-ingot breakage detection sensor;

The yarn outlet device comprises a yarn guide opening, a yarn guide opening moving device and a yarn holding device, wherein the yarn guide opening is an annular part with an opening through which spun yarn can enter and exit, the yarn guide opening is arranged on a second moving platform through the yarn guide opening moving device, the yarn guide opening moving device drives the yarn guide opening to have a degree of freedom moving along three orthogonal directions relative to the second moving platform and a degree of freedom of swinging or a degree of freedom moving relative to the yarn holding device in the vertical direction, the three orthogonal directions of the yarn guide opening relative to the second moving platform are respectively the vertical direction, the horizontal direction parallel to the length direction of the spinning frame and the horizontal direction perpendicular to the length direction of the spinning frame, the degree of freedom of swinging of the yarn guide opening is preferably swinging around the horizontal axis of the length direction of the spinning frame, the yarn holding device comprises a yarn holding part, a yarn holding driving part and a yarn holding guiding part, the yarn holding driving part is a pair of parts with relative fitting and separating movement, the yarn holding part drives the yarn holding part to relatively fitting and separating movement so as to hold and release, the yarn holding part moves adjacent to the yarn holding device through the yarn holding device and the yarn holding device through the yarn guide opening, and the yarn holding device is arranged on the yarn holding device after the yarn holding device passes through the yarn guide opening.

When the yarn holding device holds the joint yarn and is broken by the roller and the leather roller, the length of a joint at the position of the yarn holding device is uncertain, which is not beneficial to improving the joint reliability, and in order to control the length of the joint yarn at the position of the yarn holding device, a yarn cutting device is arranged between a yarn guide port of the yarn discharging device and the yarn holding device, the yarn cutting device comprises a yarn cutting cutter and a cutting driving device, the cutting driving device drives the cutting cutter to cut the joint yarn, and the yarn cutting device is arranged on a second moving platform adjacent to the yarn guide port through a yarn guide port moving device; the yarn guiding opening, the yarn cutting device and the yarn holding device are adjacently arranged, the joint yarn sequentially passes through the yarn holding device and the yarn cutting device and then passes through the yarn guiding opening, and the yarn guiding opening moving device drives the yarn guiding opening, the yarn cutting device and the yarn holding device to move relative to the second moving platform along the vertical direction, the horizontal direction parallel to the length direction of the spinning frame and the horizontal direction perpendicular to the length direction of the spinning frame.

The yarn winding device comprises a yarn winding holding device and a yarn winding moving device, wherein the yarn winding holding device is arranged on the second moving platform through the yarn winding moving device, and the yarn winding moving device drives the yarn winding holding device to have the freedom degree of movement along the vertical direction, the horizontal direction parallel to the length direction of the spinning frame and the horizontal direction perpendicular to the length direction of the spinning frame relative to the second moving platform.

The yarn winding and holding device comprises a yarn winding and holding frame and a yarn picking ring component, wherein the yarn winding and holding frame is a hollow component which can be sleeved outside a cop and is of a claw structure or a cylindrical structure, the claw structure is that the yarn winding and holding frame is provided with at least three rod-shaped components which are arranged in parallel and are connected together at the top, the rod-shaped components are positioned on a circle with the diameter equivalent to that of a ring when seen along the direction (the length direction of the rod-shaped components) of the rod-shaped components, the cylindrical structure is that the yarn winding and holding frame is of a cylindrical component with the diameter equivalent to that of the ring, the yarn winding and holding frame is provided with a yarn taking head clamping structure capable of clamping a joint yarn, the yarn taking head clamping structure clamps the end part of the joint yarn and then winds the subsequent joint yarn to the outside the yarn winding and holding frame, and the yarn taking head clamping structure capable of clamping the joint yarn preferably clamps the joint yarn by adopting opening and closing movement of two components or elastic structure;

the yarn picking ring component is a component which is arranged on the winding holder and provided with a positioning joint yarn structure, the positioning joint yarn structure is a clamping structure which is provided with a hook-shaped structure or can hold yarns, the yarn picking ring component is used for keeping joint yarns passing through the yarn picking ring component in the positioning joint yarn structure when needed, the yarn picking ring component is preferably positioned at a position which is closer to a spinning machine than a joint yarn ring on the winding holder, and for the claw-type structure winding holder, the yarn picking ring component is preferably positioned at a position which is closer to the spinning machine on a tangent line of a circle where three rod-shaped components of the claw-type structure winding holder are positioned when seen from the length direction of the three rod-shaped components; for the yarn winding retainer with the cylindrical structure, the yarn picking ring component is preferably positioned closer to the spinning frame on the tangent line of the cylindrical structure when seen from the direction of the cylindrical axis;

The yarn pressing device comprises a yarn pressing component and a yarn pressing component moving device, wherein the yarn pressing component is arranged on the second moving platform or the yarn winding retainer through the yarn pressing component moving device, when the yarn pressing component is arranged on the yarn winding retainer, the yarn pressing component at least has the freedom degree of movement in the vertical direction relative to the yarn winding retainer, and when the yarn pressing component moves vertically downwards to the limit position, the yarn ring on the yarn winding retainer is pushed down from the yarn winding retainer; when the yarn pressing component is installed on the second moving platform, the yarn pressing component moving device drives the yarn pressing component to at least have the freedom degree of movement in the horizontal direction perpendicular to the length direction of the spinning frame relative to the second moving platform, the yarn pressing component can press the joint yarn sleeved on the yarn winding holder outside the cop when moving to the limit position of the yarn pressing component close to the spinning frame in the horizontal direction, the material of the portion, which is contacted with the joint yarn, of the yarn pressing component is preferably elastic material, and the friction coefficient between the material of the portion, which is contacted with the joint yarn, of the yarn pressing component and the joint yarn is larger than the friction coefficient between the joint yarn and the yarn winding holder.

The spindle braking device comprises a spindle pressing device part and a spindle braking driving device, the spindle pressing device part is a rod-shaped or plate-shaped part which is arranged on the first moving platform through the spindle braking driving device, the spindle braking driving device drives the spindle pressing device part to have at least the freedom degree of movement in the spindle braking direction relative to the first moving platform, the spindle braking direction is the direction of force required to be exerted on a spindle braking device handle when the spindle braking device is used for braking spindles, the spindle braking direction depends on the type of spindle braking device matched with a spindle of the ring spinning frame, if the spindle braking device is lifted, the spindle braking device drives the spindle pressing device to jack up the spindle braking device handle below the spindle braking device handle, otherwise, if the spindle pressing device is used for pressing the spindle braking device handle downwards, in addition, if the spindle braking device is pressed in the direction of the inner side of the spindle braking device, the spindle pressing device drives the spindle pressing device part to press the spindle braking device handle to the inner side of the spindle braking device in the direction of the spinning frame.

The novel ring spinning frame is basically provided with a single-spindle broken-end detection system, the tail end, close to the ring, of the single-spindle broken-end detection sensor is generally provided with magnetic steel, after the ring spinning is broken, the magnetic steel on the single-spindle broken-end detection sensor can catch the rotating steel wire ring, so that the rotating steel wire ring stays on one side, far away from the spinning frame, of the ring spinning frame without the single-spindle broken-end detection sensor, and the magnetic steel for catching the steel wire ring can be arranged on one side, close to the ring, far away from the spinning frame, of the outer side of the ring plate, so that the steel wire ring is caught after the broken end, and the ring spinning frame connector device is convenient to hang the steel wire ring.

In order to apply the ring spinning yarn splicing device to a ring spinning frame without bead ring catching magnetic steel, the ring spinning yarn splicing device comprises a bead ring searching device, the bead ring searching device comprises a bead ring gripper, a bead ring gripper driving device and a bead ring positioning component, the bead ring gripper is arranged on a second moving platform through the bead ring gripper driving device, the bead ring gripper driving device drives the bead ring gripper to have the degree of freedom of moving relative to the second moving platform along the vertical direction and the horizontal direction perpendicular to the length of the spinning frame, and simultaneously has the degree of freedom of rotating around the axis of the vertical direction, and the bead ring gripper rotating degree of freedom driving device is additionally arranged on the driving device of the degree of freedom of the horizontal direction in the vertical direction and perpendicular to the length of the spinning frame;

The steel wire ring gripper is a hollow cylindrical part or a rod-shaped part which can be sleeved outside the cop, a track formed by rotation of the steel wire ring gripper is a cylinder with the diameter equivalent to that of the steel ring, the steel wire ring is positioned at one side of the steel ring far away from the spinning frame through the position close to the top surface of the steel ring in the rotation process of the steel wire ring gripper, the lower edge material of the cylindrical steel wire ring gripper, which is in contact with the steel ring, is preferably a flexible material, and one end of the rod-shaped steel wire ring gripper close to the top surface of the steel wire ring contains magnetic steel;

the steel wire ring positioning component is a steel wire ring blocking component or a steel wire ring detection component, and the steel wire ring blocking component is a rod-shaped component arranged on the second moving platform or the steel wire ring gripper driving device; when the steel wire ring blocking part is arranged on the second moving platform, the height position of the steel wire ring blocking part is equivalent to the height position of the steel ring when the steel ring plate gripper is lapped on the steel ring plate, the steel wire ring blocking part has the freedom degree of moving along the horizontal direction perpendicular to the length of the spinning frame, and when the steel wire ring blocking part is arranged on the steel wire ring gripper driving device, the steel wire ring blocking part is a rod-shaped part which is positioned outside the steel wire ring gripper and is far away from one side of the spinning frame and in the vertical direction;

The steel wire ring detection component is a steel wire ring detection sensor which is arranged on the second moving platform or the steel wire ring gripper driving device and is used for directly or indirectly detecting whether the steel wire ring moves to one side of the steel collar far away from the spinning frame, the steel wire ring detection sensor is used for detecting the moving position of the steel wire ring in the rotation process of the steel wire ring gripper, and when the steel wire ring moves to a required position, the steel wire ring gripper stops rotating; when the wire ring gripper is a rod-shaped component, the wire ring detection component can also be a sensor which is arranged on the wire ring gripper driving device and used for detecting the rotation position of the wire ring gripper, and the position of the wire ring is indirectly detected by detecting the rotation position of the wire ring gripper;

if the gap between the yarn guide hook and the top end of the cop cannot pass through the yarn winding device or the wire ring finding device, the yarn guide hook needs to be lifted up to avoid interference with the yarn winding device or the wire ring finding device in the process of sleeving the yarn winding device or the wire ring finding device outside the cop, in this case, the ring spinning yarn joint device needs to be provided with a yarn lifting guide hook device, the yarn lifting guide hook device comprises a yarn lifting guide hook part and a yarn lifting guide hook driving mechanism, the yarn lifting guide hook part is a rod-shaped or plate-shaped part which can extend below the yarn guide hook to lift the yarn guide hook, the yarn lifting guide hook part is arranged on a first moving platform or a second moving platform through the yarn lifting guide hook driving mechanism, and the yarn lifting guide hook driving mechanism drives the yarn lifting guide hook part to have a moving degree of freedom in at least two orthogonal directions along the vertical direction and the horizontal direction perpendicular to the length direction of the spinning frame;

In order to simplify the driving guide mechanism, the yarn winding moving device can be used as a part of a yarn lifting guide hook driving mechanism, the yarn lifting guide hook device is arranged on a yarn winding holder of the yarn winding device, and the yarn lifting guide hook component has the freedom of movement of the yarn winding holder and the freedom of movement of the yarn lifting guide hook component relative to the yarn winding holder along the horizontal direction perpendicular to the length of the spinning frame; when the winding yarn retainer withdraws upwards from the joint yarn coil and moves towards a spinning area where the withdrawal spindle is located away from the spinning frame, in order to prevent the yarn lifting guide hook part from interfering with cop, the tail end of the yarn lifting guide hook part comprises a rotary cross rod along the length direction of the spinning frame, the rotary cross rod has the freedom of swinging around the axis of the plumb direction, the rotary cross rod is positioned at the limit position parallel to the length direction of the spinning frame by virtue of elastic force, the tail end of the rotary cross rod far away from the swinging axis can swing towards the direction close to the spinning frame, when the rotary cross rod is subjected to force towards the direction close to the spinning frame, the rotary cross rod swings around the rotation axis of the rotary cross rod, and when the rotary cross rod is subjected to force towards the direction far away from the spinning frame, the rotary cross rod is kept at the limit position parallel to the length direction of the spinning frame; if the yarn lifting guide hook device is arranged on the yarn winding holder of the yarn winding device, the yarn lifting guide hook device is also required to be arranged on the wire ring driving device provided with the wire ring gripper, and the yarn lifting guide hook device is the same as the yarn lifting guide hook device arranged on the yarn winding holder and is used for lifting the yarn guiding hook when the wire ring gripper is sleeved into the cop.

By the mechanism and the device, the working principle of the ring spinning yarn joint device is as follows:

the bobbin yarn or the cone yarn wound with the elastic spun yarn is placed on a first moving platform or a second moving platform, the elastic joint yarn penetrates into a yarn guide tube after unwinding from the bobbin yarn or the cone yarn, the yarn guide tube is used for guiding the joint yarn to the position of an inlet of a yarn holding device of a yarn discharging device, the joint yarn is used for preventing the joint yarn from being scratched with other components in the moving process of the joint yarn, the joint yarn is pulled out of the yarn guide tube, sequentially passes through the yarn holding device, a yarn cutting device and a yarn guide opening, a cutting driving device drives a yarn cutting tool to move to a position for cutting the joint yarn, the joint yarn is cut off at the position of the yarn cutting device, if the yarn cutting device is not arranged in the ring spun yarn joint device, the yarn cutting action is not needed, the joint yarn is pulled off after the joint yarn is held by the yarn holding device, at the moment, the end of the joint yarn holding device holds the end of the joint yarn in an initial state, and the state of the ring spun yarn joint device is started every time, and the joint is restored to the state after the joint is finished once.

The yarn winding device comprises a yarn winding device, a yarn winding moving device, a yarn guiding device, a yarn holding driving component, a yarn guiding device, a yarn cutting driving component, a yarn guiding device, a yarn taking-out device, a yarn holding driving component and a yarn guiding device. Thus, the preparation of the yarn for the joint is completed.

When the spinning process of the ring spun yarn is broken, the first moving platform is moved to the position corresponding to the broken end spindle position to stop positioning.

After the second moving platform is lifted to the highest height, the second moving platform moves to a position where the ring plate grip can fall on the ring plate along a horizontal direction perpendicular to the length direction of the spinning frame in a direction approaching to the spinning frame, and the second moving platform descends by gravity and is lapped on the ring plate to perform stage lifting movement along with the vertical direction of the ring plate; positioning a steel wire ring on one side of the ring far from the spinning frame through a single ingot broken end detection sensor, magnetic steel arranged on a ring plate or a steel wire ring finding device; the yarn picking ring component and the yarn guiding mouth on the second moving platform stretch the elastic joint yarn between the yarn picking ring component and the yarn guiding mouth into a straight line section with the diameter size approximately equal to that of the ring and hang the elastic joint yarn into the steel wire ring, the joint yarn is hung into the steel wire ring by the joint yarn picking ring component and the yarn guiding mouth which move cooperatively to move the joint yarn between the yarn picking ring component and the yarn guiding mouth from bottom to top against the outer edge of one side of the ring far away from the spinning frame, and the joint yarn is hung into the steel wire ring.

If the spinning frame is provided with a balloon ring, the yarn-picking ring component on the winding retainer winds the joint yarn between the bead ring and the winding retainer into the balloon ring.

The second movable platform is lifted to the highest position to be separated from the ring plate, and does not do stage lifting movement along with the ring plate. The yarn lifting guide hook part of the yarn lifting guide hook device moves to a position slightly higher than the top end of the bobbin, the yarn lifting guide hook part of the yarn lifting guide hook device is lifted to lift the yarn guiding hook after being inserted below the yarn guiding hook, the yarn winding retainer moves until the center of a yarn loop formed by the joint yarn wound on the yarn winding retainer is positioned right above the bobbin, the second moving platform descends, the yarn winding retainer is sleeved on the outer side of the bobbin, and the second moving platform descends to be hooked with the ring plate again to perform up-down lifting motion along with the ring plate; the winding holder is lowered to a height position adjacent to the ring.

The spindle brake driving device drives the spindle brake pressing device to press the spindle brake handle to brake the spindle.

When the yarn pressing component is arranged on the second moving platform, the yarn pressing component moving device of the yarn pressing device drives the yarn pressing component to move in the vertical direction until the yarn pressing component is aligned with a yarn ring on the yarn winding retainer, then the yarn pressing component rapidly presses the joint yarn wound on the outer side of the yarn winding retainer, the joint yarn wound on the outer side of the yarn winding retainer is pressed on the outer side of the yarn winding retainer or the bobbin yarn, the yarn winding retainer rapidly moves upwards, the joint yarn is pressed by the yarn pressing component and does not move along the yarn winding retainer, the yarn ring wound by the joint yarn on the outer side of the yarn winding retainer is enveloped on the surface of the bobbin yarn or the bobbin yarn, the joint yarn is wrapped on the surface of the bobbin yarn or the bobbin yarn due to elastic shrinkage, and the yarn ends of the elastic joint yarn and the broken joint envelopes of the raw yarn are ensured to be in the yarn ring joint yarn, normal influence due to the fact that the yarn ends are thrown out by centrifugal force is avoided during spinning, and the yarn winding device horizontally moves to a position far away from the spinning machine. When the yarn pressing component is arranged on the yarn winding retainer, the yarn pressing component pushes the joint yarn coil on the yarn winding retainer downwards from the top of the yarn coil to separate from the yarn winding retainer and is sleeved outside the cop.

If the spinning frame is provided with a balloon ring, a yarn guide port on the yarn outlet device pulls the joint yarn to wind the joint yarn section between the bead ring and the yarn guide port into the balloon ring.

The second moving platform moves upwards to the highest position, is separated from the ring plate again, does not follow the ring plate to do step-up motion, and the yarn guide port winds the joint yarn into the yarn guide hook under the driving of the yarn guide port moving device. The spindle brake is loosened by the spindle brake component, the yarn guide port of the yarn outlet device continuously pulls the joint yarn to the positions of the roller and the leather roller to feed the elastic joint yarn between the front roller and the leather roller, the yarn holding device of the yarn outlet device holds the joint yarn, the joint yarn is broken by the roller and the leather roller, or the yarn holding device holds the joint yarn, the yarn cutting device cuts off the elastic joint yarn, one end of the broken joint yarn close to the yarn guide port is pulled away by the roller and the leather roller to spin, and one end close to the yarn holding device is held by the yarn holding device.

The whole splicing process is completed, the yarn heads of the clampable splicing yarns are reserved for the next splicing, before the next splicing, the yarn winding holder of the yarn winding device moves between the yarn holding device of the yarn discharging device and the yarn guide tube, the yarn taking head clamping structure of the yarn winding holder is used for holding the splicing yarns between the yarn guide tube and the holding device, and the splicing yarns are wound on the yarn winding holder after passing through the yarn guide opening.

Drawings

FIG. 1 is a schematic view of the whole structure of the ring spinning yarn splicing device of the present invention.

FIG. 2 is a schematic diagram showing the relationship between the whole spinning frame and the spinning frame.

FIG. 3 is a schematic view showing a part of the structure relationship between the ring spinning yarn splicing device and the spinning frame.

Fig. 4 is a schematic view of a second moving platform and the above structure of the ring spinning yarn splicing device of the present invention.

Fig. 5 is a schematic front view of a second moving platform and the above parts of the ring spinning yarn splicing device.

Fig. 6 is a schematic view of the yarn outlet device of the ring spinning yarn splicing device.

Fig. 7 is a schematic view of a yarn guide, a yarn holding device and a yarn cutting device of the ring spinning yarn splicing device of the present invention.

Fig. 8 is a schematic view of the yarn winding device of the ring spinning yarn splicing device of the invention.

Fig. 9 is a schematic structural relation diagram of a yarn winding device and a yarn pressing device of the ring spinning yarn splicing device.

FIG. 10 is a schematic view of a ring spinning yarn splicing device of the present invention.

Fig. 11 is a schematic view of a yarn end of a ring spun yarn splicing method and apparatus of the present invention, shown in fig. 1.

Fig. 12 is a schematic view of a yarn end of a ring spun yarn splicing method and apparatus of the present invention, shown in fig. 2.

Fig. 13 is a schematic view of a yarn end of a ring spun yarn splicing method and apparatus of the present invention, shown in fig. 3.

Fig. 14 is a schematic view showing the end-of-yarn state of the ring spun yarn splicing method and apparatus of the present invention.

Fig. 15 is a schematic view showing the yarn winding state of the ring spun yarn splicing method and apparatus of the present invention.

Fig. 16 is a schematic view 1 showing the working state of a yarn picking ring component of the ring spinning yarn splicing device.

Fig. 17 is a schematic view 2 showing the working state of the yarn picking ring component of the ring spinning yarn splicing device.

FIG. 18 is a schematic view of a ring spinning yarn splicing method and apparatus of the present invention passing through a bead ring.

FIG. 19 is a schematic view of the method and apparatus for piecing ring spun yarns of the present invention beginning to lift the guide hook.

FIG. 20 is a schematic view of the ring spun yarn splicing method and apparatus of the present invention, yarn pressing and yarn stopping.

Fig. 21 is a bottom view schematically showing the method and apparatus for piecing ring spun yarns according to the present invention.

FIG. 22 is a schematic view of a ring spun yarn splicing method and apparatus of the present invention, splice winding guide hooks.

FIG. 23 is a schematic view of a ring spun yarn splicing method and apparatus around a leather roller in accordance with the present invention.

FIG. 24 is a schematic view showing the process and apparatus for piecing ring spun yarn in accordance with the present invention in a state in which the spinning roller is wound.

FIG. 25 is a schematic view of a yarn gripping and severing apparatus for ring spinning yarn splicing in accordance with the present invention.

Fig. 26 is a schematic diagram of an operation principle of the ring spinning yarn splicing method and device for finding the bead ring according to the present invention.

Fig. 27 is a schematic view showing the working principle of another yarn pressing member of the method and apparatus for piecing ring spun yarns of the present invention.

FIG. 28 is a schematic diagram of another exemplary method and apparatus for splicing ring spun yarns according to the present invention.

In the figure: 111. yarn pressing component 112, yarn pressing component spacing bracket 1131, yarn pressing Y-axis cylinder 1132, yarn pressing Y-axis guide rail 1141, yarn pressing Z-axis motor 1142, yarn pressing Z-axis screw 1143, yarn pressing Z-axis screw nut 1144, yarn pressing Z-axis guide rail 1145, yarn pressing Z-axis slide 1146, yarn pressing Z-axis platform 1211, yarn guiding tube 1212, yarn guiding port support 1213, holding cutting cylinder 1214, holding cutting movement support 1215, elastic joint yarn 1216, yarn guiding port 1217, cutting tool 1218, yarn holding block 1219, yarn holding sheet 1221, yarn guiding Y-axis motor 1222, yarn guiding Y-axis screw 1223, yarn guiding Y-axis screw nut 1224, yarn guiding Y-axis guide rail 1225, yarn guiding Y-axis slide 1226, yarn guiding Y-axis platform 1231, yarn guiding Z-axis motor 1232, yarn guiding Z-axis screw 1233, yarn guiding Z-axis screw nut 1234, yarn guiding Z-axis guide rail 1235, yarn guiding Z-axis slide. 1236 yarn guide Z-axis platform 1241 yarn guide X-axis motor 1242 yarn guide X-axis screw 1243 yarn guide X-axis screw nut 1244 yarn guide X-axis guide rail 1245 yarn guide X-axis slide 1246 yarn guide X-axis platform 1251 yarn guide swing motor 1252 yarn guide swing drive gear 1253 yarn guide swing reduction worm gear 1311 yarn guide Z-axis motor 1312 yarn winding Z-axis screw 1313 yarn winding Z-axis screw nut. 1314, Z-axis yarn guide 1315, Z-axis yarn slide 1316, Z-axis yarn platform 1317, Z-axis yarn lifting cylinder 1321, X-axis yarn motor 1322, X-axis yarn screw 1323, X-axis yarn screw nut 1324, X-axis yarn guide 1325, X-axis yarn slide 1326, X-axis yarn platform 1331, Y-axis yarn motor 1332, Y-axis yarn screw 1333, Y-axis yarn screw nut 1334, Y-axis yarn guide 1335. Yarn Y-axis slider 1336, yarn Y-axis platform 134, yarn holder 1341, cantilever rod 1351, yarn clamping cylinder 1352, yarn clamping outer cavity 1353, yarn clamping cylinder rod 1354, yarn clamping collet 1361, yarn clamping cylinder 1362, yarn clamping outer cavity 1363, yarn clamping cylinder rod 1364, yarn clamping collet 1371, rotary cross rod 1372, cross rod rotary housing 1373, cylinder guide rail 1374, lift guide hook cylinder housing 1375, lift guide hook cylinder 1411, steel wire Z-axis motor 1412, steel wire Z-axis lead screw 1413, steel wire Z-axis lead screw nut 1414, steel wire Z-axis guide 1415, steel wire Z-axis slider 1356, steel wire Z-axis platform 1421, steel wire Y-axis motor 1422, steel wire Y-axis lead screw 1423, steel wire Y-axis lead screw nut 1424, steel wire Y-axis search cylinder 1414. Shaft guide 1425, search wire ring Y-axis slide 1426, search wire ring Y-axis platform 1431, grip rotary stepper motor 1432, grip rotary drive timing belt 1433, grip rotary positioning bearing 1434, wire ring bar 144, wire ring grip 1440, rod wire ring grip 151, stripper ring member 21, ring plate grip 22, second moving platform 231, second moving platform Y-axis cylinder 232, second moving platform Y-axis guide 233, second moving platform Y-axis slide 24, counterweight guide pulley 25, lifting connection bracket 26, counterweight 271, second platform Z-axis lifting cylinder 272, second platform Z-axis lifting guide 273, second platform Z-axis lifting slide 28, first moving platform 291, pressure brake member 292, pressure brake Z-axis slide 293, pressure brake Z-axis guide 294, pressure brake Z-axis drive cylinder 41. Ring plate 42, ring 43, bead ring 44, bobbin 45, guide hook 46, front roller 47, leather roller 48, spindle brake

Detailed Description

Several specific embodiments of a ring spinning yarn splicing method and apparatus according to the present invention are set forth below in conjunction with the drawings, which are intended to be illustrative of the invention and not limiting the claims of the invention, which are not described herein as applied to the prior art.

Example 1 of a ring spun yarn splicing method of the present invention (see fig. 11 to 25):

a method for piecing ring spinning yarn adopts a method similar to the method for piecing the yarn of ring spinning yarn to process broken ends in the spinning process, and specifically comprises the following steps:

the first step: as shown in fig. 11 to 17, an elastic yarn end 1215 is fixed to a yarn winding holder 134 and then wound around the yarn winding holder 134 to form a yarn loop, the elastic yarn end is a spun yarn having elasticity, the embodiment is a spandex core yarn, the yarn winding holder 134 has three parallel rod-shaped members, the elastic yarn end is fixed to the yarn winding holder, the yarn taking-out head clamping structure clamps one end of the elastic yarn end on the yarn winding holder, the yarn taking-out head clamping structure clamps the yarn, the elastic yarn end is wound on the yarn winding holder, the elastic yarn end is wound on the outer sides of the three parallel rods, the number of winding turns is generally 2 to 5, and the yarn taking-out head 1215 is wound on the yarn winding holder 134 to form a triangular yarn loop, as shown in fig. 15. It is not excluded that the yarn winding holder takes a claw-like structure having a plurality of rod-like members to wind the joint yarn into a polygonal shape, or that the yarn winding holder takes a cylindrical structure to wind the joint yarn into a circular shape;

And a second step of: as shown in fig. 18 to 19, the elastic joint yarn 1215 is hung in the bead ring 43 at a position close to the winding holder 134;

and a third step of: as shown in fig. 20, the yarn winding holder 134 around which the elastic joint yarn 1215 is wound is put on the outside of the cop, and when the yarn winding holder is put on the cop, the yarn winding holder is put on the cop from the top of the cop 44 to the center of the cop, so that three parallel bars on the yarn winding holder 134 are positioned on the outside of the cop 44, and the yarn winding holder is lowered to a position slightly higher than the ring 42;

fourth step: as shown in fig. 20 to 21, fig. 21 is a schematic view from the bottom to the top in the vertical direction, the elastic joint yarn 1215 wound on the outside of the yarn winding holder 134 is pressed from the outside of the triangle formed by the three parallel bars on the yarn winding holder 134, the part of the yarn winding holder 134 holding the end of the elastic joint yarn releases the end of the elastic joint yarn, the yarn winding holder 134 is lifted upward, the elastic joint yarn 1215 wound on the outside of the yarn winding holder 134 is sleeved on the outside of the bobbin 44 or the cop, and the elastic joint yarn 1215 is sleeved on the bobbin or the cop depending on the height of the ring 42, and if the joint is not timely performed after the joint is broken, the elastic joint yarn may be sleeved on the bobbin 44 and not sleeved on the cop due to the step-up movement of the ring plate 41; the yarn winding holder is lifted upwards, the yarn ring is pulled down from the outside of the yarn winding holder, or the yarn coil is pushed down by the yarn winding retainer from the top of the yarn coil, preferably, the joint yarn is pressed from the outer side of the yarn winding retainer, the yarn winding retainer is lifted upwards, and the joint yarn wound on the yarn winding retainer is retracted and then sleeved on the outer side of the yarn tube or cop; it is not excluded that any other way of withdrawing the connector yarn outside the winding holder from the winding holder is to be excluded. With respect to the claw-type structure yarn winding holder 134, since there is a gap between two rod-like members connected to one side closer to the spinning frame (two rod-like members on the left side of the yarn winding holder 134 in fig. 21) sufficient to pass through the bobbin, when the yarn joining ring is separated from the yarn winding holder, the yarn winding holder can be moved away from the region where the bobbin is located in a direction away from the spinning frame so as not to affect spinning, and if the yarn winding holder employs the hollow member of the tubular structure, after the yarn joining ring is separated from the yarn winding holder, the yarn winding holder needs to be raised upward first until the yarn winding holder can be moved away from the region where the bobbin is located in a direction away from the spinning frame at the top end of the bobbin so as not to interfere with the bobbin.

Fifth step: as shown in fig. 22, if the ring spinning frame is provided with an air ring, it is necessary to pass through the air ring first and then through the guide hook 45, and the passing through the air ring refers to the winding-in of the guide hook 45 and the winding-in of the air ring, and the winding-in of the elastic connector yarn 1215 into the guide hook or the winding-in of the air ring belongs to a conventional spinning gear operation;

sixth step: as shown in fig. 23 to 24, the elastic yarn 1215 passing through the yarn guide hook 45 is connected to the yarn fed between the front roller 46 and the leather roller 47 by means of a "winding roller" connection, specifically, the elastic yarn 1215 is fed between the front roller 46 and the leather roller 47 from the shaft end side of the leather roller 47 and the roller feeding side (between the front roller and the middle roller), and the yarn drawn by the elastic yarn 1215 together with the front roller 46 is held and fed by the front roller 46 and the leather roller 47, so that the elastic yarn 1215 is connected to the yarn. The spun yarn can cause a rough knot in a part of yarn guiding sections, the rough knot of the sections can be automatically removed in an automatic winding stage, and the quality of the wound spun yarn is not affected. When the ring spinning frame is a compact spinning frame and the elastic yarn 1215 is hung in a "winding roller" manner, the elastic yarn 1215 may be wound in front of the front roller 46 and the front roller 47, or may be wound in a roller with matching mesh rings.

In general, when the wire ring is hung, the wire ring is positioned on the side of the ring away from the spinning frame, so that the wire ring is positioned on the side of the ring away from the spinning frame before the second step;

when ring spinning yarn starts spinning a new doff after full doffing and doffing, a blocking worker needs to manually stop the spindle position of the yarn which cannot be left, the blocking worker generally hangs the yarn into a bead ring 43 and then winds one end of the yarn around a bobbin 44 or a cop (which may not be limited to one turn) by lightly pulling the yarn, the yarn can be wound by utilizing the rotation of the bobbin 44, the tail end of the yarn can be close to or pressed on the surface of the cop or the bobbin 44, the yarn is wound on the cop by the rotation of the cop or the bobbin 44, when the yarn is once effectively wound on the bobbin or the cop, the other end of the yarn needs to be quickly erected in time to pass through a yarn guiding hook part, the yarn is twisted by the rotation of the bead ring 43, and the other end of the yarn cannot be kept in the radial direction of the cop, otherwise, the yarn is quickly wound on the cop or the bobbin 44 and is pulled off. The spinning operation of the ring spun yarn belongs to common knowledge in the industry, and is not repeated, but the spinning operation is never used for the joint after the spinning breakage in the industry. The ring spun yarn splicing method is a process of simulating the artificial yarn splicing of the ring spun yarn, except that the yarn splicing uses elastic spun yarn, and the elastic yarn splicing 1215 is wound on the yarn winding holder 134 in advance, and then the elastic yarn splicing 1215 wound on the yarn winding holder 134 is transferred to the cop, although the length of one circle of the elastic yarn splicing 1215 wound on the outer side of the yarn winding holder 134 is longer than that of one circle of the cop, since the elastic spun yarn is used as the yarn splicing, the elastic yarn splicing 1215 can be wrapped on the outer side of the cop by virtue of the elasticity of the elastic yarn splicing after the yarn winding holder 134 is withdrawn, thereby ensuring the splicing. For a spindle with failed spinning after doffing, the spinning-in method can play a role in spinning-in even though the spindle is not provided with spun yarn.

Example 2 of the method and apparatus for piecing ring spun yarn of the present invention (see fig. 1 to 25):

a ring spun yarn splicing device, which uses the ring spun yarn splicing method of embodiment 1, includes a first moving platform 28, a second moving platform 22, a yarn discharging device, a yarn winding device, a yarn lifting and guiding device, a yarn pressing device, and a yarn stopping device, as shown in fig. 1 to 4.

The first moving platform 28 is a plate-shaped member, and is not excluded from adopting frame-shaped or box-shaped members and the like, and is used for bearing other parts of the ring spinning yarn splicing device, and has a degree of freedom of moving along the length direction of the spinning frame.

The second movable platform 22 has a double-layer flat plate structure, which is used for facilitating the installation of other components, and the second movable platform is not excluded from adopting a frame structure or a single-layer plate structure,

the second moving platform 22 has the freedom of lifting relative to the vertical direction of the first moving platform 28 and the freedom of moving perpendicular to the length direction of the spinning frame, the second platform Z-axis lifting cylinder 271, the second platform Z-axis lifting guide rail 272 and the second platform Z-axis lifting slide 273 are arranged on the first moving platform 28 in the vertical direction, the lifting connecting bracket 25 is arranged on the second platform Z-axis lifting slide 273, the second moving platform Y-axis cylinder 231, the second moving platform Y-axis guide rail 232 and the second moving platform Y-axis slide 233 which are perpendicular to the length direction of the spinning frame are horizontally arranged on the lifting connecting bracket 25, the bottom of the second moving platform 22 is arranged on the second moving platform Y-axis slide 233, one end of a steel wire rope is fixed on the lifting connecting bracket 25 and is connected to the balancing weight 26 through the pulley 24, and the balancing weight is used for balancing the weight of the second moving platform and the installation parts thereof, and the stability of the second moving platform in the vertical direction is improved; the second moving platform Y-axis air cylinder 231 is installed at the bottom of the second moving platform 22, the air cylinder rod is connected to the lifting connecting support 25, when the air cylinder rod of the second moving platform Y-axis air cylinder 231 stretches out and retracts, the second moving platform 22 is pushed to reciprocate horizontally along the direction perpendicular to the length direction of the spinning frame, the air cylinder rod of the second platform Z-axis lifting air cylinder 271 upwards pushes against the lower part of the lifting connecting support 25, the air cylinder rod is not fixedly connected with the lifting connecting support 25, when the air cylinder rod of the second platform Z-axis lifting air cylinder 271 stretches out upwards, the second moving platform 22 is driven to lift along the second platform Z-axis lifting guide rail 272 through the lifting connecting support 25, and when the air cylinder rod of the second platform Z-axis lifting air cylinder 271 retracts, the second moving platform descends by gravity, so that the degree of freedom of movement of the plumb direction of the second moving platform 22 is realized.

The ring plate gripper 21 is a rod-shaped member mounted on the side of the second moving platform close to the spinning frame and protruding out of the second moving platform, and a plate-shaped member can be selected.

The yarn feeding device includes a yarn guide 1216, a yarn guide moving device, a yarn holding device, and a yarn cutting device, as shown in fig. 5 to 17.

The yarn guide opening 1216 is an annular component with an opening for allowing spun yarn to enter and exit, and is similar to a yarn guide hook of a ring spinning frame;

the yarn guide mouth movement device comprises three yarn guide mouth translation devices in orthogonal directions and a yarn guide mouth swinging device, and the three yarn guide mouth translation devices in orthogonal directions comprise a yarn guide Z-axis movement device, a yarn guide X-axis movement device and a yarn guide Y-axis movement device; as shown in fig. 5, the yarn guiding Z-axis moving device comprises a yarn guiding Z-axis guiding member, a yarn guiding Z-axis driving member and a yarn guiding Z-axis platform 1236, wherein the yarn guiding Z-axis guiding member comprises a yarn guiding Z-axis guide rail 1234 vertically mounted on the second moving platform 22, and a yarn guiding Z-axis sliding block 1235 slidably disposed along the yarn guiding Z-axis guide rail 1234, the yarn guiding Z-axis driving member comprises a yarn guiding Z-axis motor 1231 mounted on the second moving platform 22 and a yarn guiding Z-axis screw 1232 connected with a yarn guiding Z-axis motor shaft, the yarn guiding Z-axis platform 1236 is mounted on the yarn guiding Z-axis sliding block 1235, the yarn guiding Z-axis screw nut 1233 is mounted on the yarn guiding Z-axis platform 1236, and the yarn guiding Z-axis motor 1231 drives the yarn guiding Z-axis platform 1236 to reciprocate vertically through the yarn guiding Z-axis screw 1232 and the yarn guiding Z-axis screw nut 1233;

The yarn guiding X-axis moving device comprises a yarn guiding X-axis guiding part, a yarn guiding X-axis driving part and a yarn guiding X-axis platform 1246, wherein the yarn guiding X-axis guiding part comprises a yarn guiding X-axis sliding block 1245 which is horizontally installed on the yarn guiding Z-axis platform 1236 in parallel with the length direction of the spinning frame and a yarn guiding X-axis guide rail 1244 which slides in the sliding block, the yarn guiding X-axis driving part comprises a yarn guiding X-axis motor 1241 which is installed on the yarn guiding X-axis guide rail 1244 and a yarn guiding X-axis screw 1242 which is connected with a yarn guiding X-axis motor shaft, the yarn guiding X-axis platform 1246 is installed on the yarn guiding X-axis guide rail 1244, and the yarn guiding X-axis screw nut 1243 is installed on the yarn guiding Z-axis platform 1236, and the yarn guiding X-axis motor 1241 drives the yarn guiding X-axis platform 1246 to horizontally reciprocate along the length direction of the spinning frame through the yarn guiding X-axis screw 2 and the yarn guiding X-axis screw nut 1243;

as shown in fig. 6, the yarn guiding Y-axis moving device comprises a yarn guiding Y-axis guiding member, a yarn guiding Y-axis driving member and a yarn guiding Y-axis platform 1226, wherein the yarn guiding Y-axis guiding member comprises a yarn guiding Y-axis guiding rail 1224 horizontally installed on the yarn guiding X-axis platform 1246 in a direction perpendicular to the length direction of the spinning frame, and a yarn guiding Y-axis sliding block 1225 slidably disposed along the yarn guiding Y-axis guiding rail 1224, the yarn guiding Y-axis driving member comprises a yarn guiding Y-axis motor 1221 installed on the yarn guiding X-axis platform 1246 and a yarn guiding Y-axis screw 1222 connected with a yarn guiding Y-axis motor shaft, the yarn guiding Y-axis platform 1226 is installed on the yarn guiding Y-axis sliding block 1225, the yarn guiding Y-axis screw nut 1223 is installed on the yarn guiding Y-axis platform 1226, and the yarn guiding Y-axis motor 1221 horizontally reciprocates in the direction perpendicular to the length direction of the spinning frame through the yarn guiding Y-axis screw 1222 and the yarn guiding Y-axis screw nut 1223;

The yarn guide swinging device comprises a yarn guide swinging guide part, a yarn guide swinging driving part and a yarn guide support 1212, wherein the yarn guide 1216 is arranged on the yarn guide support 1212, the yarn guide support 1212 is hinged on a yarn guide Y-axis platform 1226, the hinging part is the yarn guide 1216 swinging guide part, the yarn guide swinging driving part is a yarn guide swinging motor 1251 arranged on the yarn guide Y-axis platform 1226, and the yarn guide swinging motor drives the yarn guide support 1212 and the yarn guide 1216 arranged on the yarn guide support 1212 to swing through a yarn guide swinging transmission gear 1252 and a yarn guide swinging reduction worm gear 1253.

As shown in fig. 7, the yarn holding device comprises a yarn holding member, a yarn holding driving member and a yarn holding guiding member, wherein the yarn holding member comprises a holding and cutting movable support 1214, a yarn holding block 1218 and a yarn holding pressing piece 1219, the yarn holding driving member is a holding and cutting cylinder 1213 installed on the yarn guiding support 1212, the yarn holding guiding member comprises two guide rods with one end fixedly installed on the holding and cutting movable support 1214 and the other end sliding in the yarn guiding support 1212, the cylinder rod of the holding and cutting cylinder 1213 is connected to the holding and cutting movable support 1214, the yarn holding pressing piece 1219 is installed on the holding and cutting movable support 1214, the yarn holding block 1218 is an elastomer, the yarn holding block 1218 is installed on the yarn guiding support 1212 in alignment with the yarn holding pressing piece 1219, and when the cylinder rod of the holding and cutting cylinder 1213 extends, the holding and cutting movable support 1214 is pushed to move the yarn holding and cutting pressing piece 1219 to cut the end of the joint yarn holding and cutting block 1218 therebetween;

The yarn cutting device comprises a yarn cutting tool 1217 and a cutting driving device, the cutting tool 1217 and the yarn holding piece 1219 are adjacently arranged on the holding and cutting movable support 1214, when the cylinder rod holding the cutting cylinder 1213 (simultaneously used as the cutting driving device) stretches out, the holding and cutting movable support 1214 pushes the yarn holding piece 1219 and the cutting tool 1217 to move, the cutting tool 1217 and the yarn guiding port support 1212 cut off the joint yarn, and meanwhile, the yarn holding piece 1219 and the yarn holding piece 1218 hold one end of the joint yarn to be cut, and the yarn holding device can be broken by the roller and the leather roller after holding the joint yarn, so that the yarn discharging device does not need to comprise the yarn cutting device, and the yarn cutting device is more beneficial to precisely controlling the length of the joint yarn retaining head than the yarn cutting device does not comprise the yarn cutting device.

Whether the yarn holding device or the yarn cutting device uses two relatively moving parts to hold or cut the yarn, for example, a yarn holding pressing piece 1219 and a cutting tool 1219 are arranged on one side of a yarn holding block 1218, and the yarn holding block is arranged on a holding and cutting movable support 1214, so that the purpose of holding and cutting can be achieved, and even the relative holding and cutting functions can be realized by using swinging holding, cross cutting and the like.

The yarn winding device comprises a yarn winding holding device and a yarn winding moving device, as shown in fig. 5, 8 and 9.

The yarn winding and holding device comprises a yarn winding and holding frame and a yarn picking ring component, the yarn winding and holding frame 134 comprises three cantilever rods 1341 which are connected together at the end parts and are parallel to each other and distributed in a triangular mode, the extending directions of the three cantilever rods 1341 are consistent and play a role of yarn supporting, the yarn winding and holding frame comprises a yarn taking head clamping structure, as shown in fig. 8 and 11-17, the yarn taking head clamping structure is arranged at the inner side of an encircling area of the three cantilever rods 1341 and adjacent to one cantilever rod 1341, and the yarn taking head clamping structure comprises a yarn head clamping cylinder 1361, a yarn head clamping outer cavity 1362, a yarn head clamping cylinder rod 1363 and a yarn head clamping chuck 1364; when the cylinder rod of the yarn end clamping cylinder rod 1363 extends, the yarn end clamping outer cavity 1362 and the yarn end clamping chuck 1364 are separated to form a yarn clamping cavity, and the cylinder rod of the yarn end clamping cylinder rod 1363 is retracted after the yarn is put into the yarn clamping cavity, so that the yarn end can be clamped.

Although the present embodiment has the yarn taking holding structure separately provided on the inner sides of the three cantilever bars 1341 on the yarn winding holder 134, it is not excluded to directly use the yarn taking holding structure instead of the cantilever bars 1341 of the yarn winding holder, for example, to remove one cantilever bar 1341 of the yarn winding holder adjacent to the yarn taking holding structure, which is equivalent to the yarn taking structure functioning to hold and fix the yarn end of the connector and also functioning to support the yarn loop of the connector. Besides the clamping structure formed by two relatively opening and closing moving parts, the yarn taking head clamping structure can also be a cantilever rod with a V-shaped groove structure or a hook-shaped structure at the upper tail end of the yarn winding retainer 134, and when the yarn taking head is carried out, the yarn enters the V-shaped groove at the tail end of the cantilever rod, and the yarn taking head is held by the friction force of the inner wall of the V-shaped groove to yarn, so that the yarn taking head function is realized. When the yarn loop needs to be separated from the yarn winding holder 134 and is enveloped on the surface of the yarn tube 44, the yarn loop is pressed by the yarn pressing component, and at the moment, the yarn winding holder 134 moves upwards, and can be separated from the V-shaped groove due to the change of the stress direction of the yarn. The yarn taking head clamping structure is not limited to the scheme in the embodiment, and any scheme capable of clamping the end part of the joint yarn can be used in the yarn taking head clamping structure, such as a common V-shaped elastic clamping structure, a clamping structure formed by two relatively opening and closing moving parts, a swinging clamping structure similar to a crochet hook and the like. The yarn picking ring component comprises a yarn ring clamping cylinder 1351, a yarn ring clamping outer cavity 1352, a yarn ring clamping cylinder rod 1353 and a yarn ring clamping chuck 1354, the yarn picking head clamping structure and the yarn picking ring component are parallel to three cantilever rods of the yarn winding holder 134, the yarn picking head clamping structure is located on the inner side of the three cantilever rods of the yarn winding holder 134, the yarn picking ring component is located on the outer side of the three cantilever rods of the yarn winding holder 134, and is located at a position, closer to a spinning frame, on a tangent line of a circle where the three cantilever rods are located than the three cantilever rods on the yarn winding holder 134, of the yarn picking ring component, and is closer to the spinning frame, so as to ensure that the yarn winding holder does not interfere with a cop when the yarn guiding port is matched with a steel wire ring. The yarn picking ring component adopts the same structure as the yarn picking head clamping structure as a positioning joint yarn structure, but other structures capable of clamping yarns are not excluded from being adopted as the positioning joint yarn structure, for example, a controlled hook-shaped structure can be arranged on the outer side of the rod-shaped yarn picking ring component to be used as the positioning joint yarn structure, so that the joint yarn can be limited by the positioning joint yarn structure when the joint yarn passes through the positioning joint yarn structure position of the yarn picking ring component after being wound on the outer side of the yarn winding retainer, the joint yarn is prevented from being uncontrolled in the process of sleeving the joint yarn outside the cop after the subsequent steel wire ring is penetrated and after the steel wire ring is penetrated, and the joint yarn is ensured to move along with the yarn picking ring component of the yarn winding device in the process of sleeving the cop after the steel wire ring is penetrated, so that the clamping or limiting structure which can meet the positioning function of the joint yarn can be used as the positioning joint yarn structure.

Although the yarn picking ring component in this embodiment is an independent component, it is not excluded to use the cantilever rod on the yarn winding holder as the yarn picking ring component, for example, a yarn picking head clamping structure is arranged on one of the three cantilever rods on the yarn winding holder, which is far away from the spinning frame, and a positioning joint yarn structure is arranged at the tail ends of the two cantilever rods, which are close to the spinning frame, in addition, the joint yarn bypasses the positioning joint yarn structure at the tail ends of the two cantilever rods, which are close to the spinning frame, after the yarn winding holder winds the yarn ring, and the steel wire ring is hung by the joint yarn between the two cantilever rods with the positioning joint yarn structure, and the cantilever rod component of the yarn winding holder can also play the role of the yarn picking ring component.

In this embodiment, three parallel rod-shaped members are used to form the triangular shape holder by triangular distribution, but the cantilever rod-shaped members supporting the yarn loops of the connector on the yarn winding holder are not limited to triangular distribution, for example, polygonal, circular, even elliptical or other irregular distribution can be used, or cylindrical shape holder is used, and for the cylindrical structure yarn winding holder, the yarn picking ring member is preferably located at a position closer to the spinning frame on the tangent line of the cylindrical structure as seen from the direction of the cylindrical axis.

The yarn winding moving device comprises a yarn winding Z-axis moving device, a yarn winding X-axis moving device and a yarn winding Y-axis moving device in three orthogonal directions; as shown in fig. 5, 8 and 9, the yarn winding Z-axis moving device comprises a yarn winding Z-axis guiding component, a yarn winding Z-axis driving component and a yarn winding Z-axis platform 1316, wherein the yarn winding Z-axis guiding component comprises a yarn winding Z-axis guide rail 1314 which is installed on the second moving platform 22 in the vertical direction, and a yarn winding Z-axis sliding block 1315 which is arranged along the yarn winding Z-axis guide rail in a sliding manner, the yarn winding Z-axis driving component comprises a yarn winding Z-axis lifting cylinder 1317 which is installed on the second moving platform 22, a yarn winding Z-axis motor 1311 and a yarn winding Z-axis screw 1312 which is connected with a yarn winding Z-axis motor shaft, the yarn winding Z-axis platform 1316 is arranged on the yarn winding Z-axis sliding block 1315, and a yarn winding Z-axis screw nut 1313 is installed on the yarn winding Z-axis platform 1316, and the yarn winding Z-axis motor 1311 drives the yarn winding Z-axis platform 1316 to reciprocate in the vertical direction through the yarn winding Z-axis screw 1312 and the yarn winding Z-axis screw nut 1313; the winding Z-axis lifting cylinder 1317 is extended and retracted by a cylinder rod to push the winding Z-axis platform 1316 to reciprocate rapidly in the vertical direction. In this embodiment, the driving means for the winding Z-axis adopts two driving modes of the winding Z-axis lifting cylinder 1317 and the winding Z-axis motor 1311, so that the winding holder is quickly withdrawn from the yarn loop of the joint by the cylinder 1317, which does not exclude the driving mode of the Z-axis motor 1311.

The yarn winding X-axis moving device comprises a yarn winding X-axis guiding component, a yarn winding X-axis driving component and a yarn winding X-axis platform 1326, wherein the yarn winding X-axis guiding component comprises a yarn winding X-axis guide rail 1324 which is horizontally arranged on the yarn winding Z-axis platform 1326 along the length direction of the spinning frame and a yarn winding X-axis sliding block 1325 matched with the guide rail, the yarn winding X-axis driving component comprises a yarn winding X-axis motor 1321 which is arranged on the yarn winding X-axis guide rail 1324 and a yarn winding X-axis screw 1322 which is connected with a yarn winding X-axis motor shaft, the yarn winding X-axis guide rail 1324 is arranged on the yarn winding Z-axis platform 1316, the yarn winding X-axis motor 1321 horizontally reciprocates along the length direction of the spinning frame through the yarn winding X-axis screw 1322 and the yarn winding X-axis screw nut 1323,

the yarn winding Y-axis moving device comprises a yarn winding Y-axis guiding component, a yarn winding Y-axis driving component and a yarn winding Y-axis platform 1336, wherein the yarn winding Y-axis guiding component comprises a yarn winding Y-axis guide rail 1334 horizontally installed on the yarn winding X-axis platform 1326 in the direction perpendicular to the length direction of the spinning frame, and a yarn winding Y-axis sliding block 1335 slidingly arranged along the yarn winding Y-axis guide rail, the yarn winding Y-axis driving component comprises a yarn winding Y-axis motor 1331 installed on the yarn winding X-axis platform 1326 and a yarn winding Y-axis screw 1332 connected with a yarn winding Y-axis motor shaft, the yarn winding Y-axis platform 1336 is installed on the yarn winding Y-axis sliding block 1335, and the yarn winding Y-axis motor 1331 horizontally reciprocates in the direction perpendicular to the length direction of the spinning frame through the yarn winding Y-axis screw 1332 and the yarn winding Y-axis screw nut 1333.

If the gap between the yarn guide hook and the top end of the cop cannot pass through the yarn winding device, the yarn guide hook needs to be lifted up to avoid interference with the yarn winding device in the process of sleeving the yarn winding device on the outside of the cop, in this case, the ring spinning joint device needs to be provided with a yarn lifting guide hook device, the yarn lifting guide hook device comprises a lifting component and a yarn lifting guide hook Y-axis propelling device, as shown in fig. 19, the lifting component is used as a yarn lifting guide hook component, the yarn lifting guide hook Y-axis propelling device is used as a yarn lifting guide hook driving mechanism,

the lifting guide hook Y-axis propelling device comprises a lifting guide hook cylinder base 1374, a lifting guide hook cylinder 1375 and a cylinder guide rail 1373, wherein the lifting guide hook cylinder base 1374 is fixedly arranged on the winding retainer 134, the lifting guide hook cylinder 1375 is fixedly arranged in the lifting guide hook cylinder base 1374, the cylinder guide rail 1373 is parallel to a cylinder rod, and the lifting component is pushed to horizontally reciprocate along the direction perpendicular to the length direction of the spinning frame by extending and retracting the cylinder rod;

the lifting component comprises a rotating cross rod 1371, a cross rod rotating base 1372 and a reset tension spring for connecting the rotating cross rod 1371 with a yarn lifting guide hook cylinder base 1374, the rotating cross rod 1371 and the cross rod rotating base 1372 are connected through a hinge, the rotating cross rod 1371 and the cross rod rotating base 1372 can rotate by 90 degrees relatively, the reset tension spring enables the rotating cross rod 1371 to be in a limit position parallel to an X axis in the length direction, when a spool 44 applies force to the rotating cross rod 1371 along the Y axis forward direction (towards the direction approaching to a spinning frame), the rotating cross rod 1371 can rotate to be parallel to the Y axis in the length direction (the tail end of the swinging of the rotating cross rod 1371 swings towards the direction approaching to the spinning frame), and when the force applied to the rotating cross rod 1371 by the spool 44 is removed, the rotating cross rod 1371 is enabled to be restored to be parallel to the X axis through the reset tension spring.

The yarn lifting guide hook device is used for lifting the yarn guiding hook when the yarn winding device is sleeved outside the cop from the top end of the cop, so that the yarn guiding hook is prevented from interfering with the yarn winding device, and if the lengths of the three cantilever rods 1341 on the yarn winding holder 134 are relatively short, the yarn guiding hook is not lifted, and if the space between the yarn guiding hook and the top end of the cop can pass through the yarn winding holder, the yarn lifting guide hook device is not required to be arranged on the yarn winding device.

The yarn pressing device comprises a yarn pressing component 111 and a yarn pressing component moving device, as shown in figures 5, 9 and 21,

the yarn pressing member 111 has a Y-shaped open curved surface structure (a yarn pressing member with a planar structure is not excluded), and the inner side surface of the yarn pressing member 111 can be attached to the outer surface of the bobbin 44 and the outer surfaces of three cantilever rods of the yarn winding holder 134;

as shown in fig. 5, the yarn pressing component moving device includes a yarn pressing Z-axis moving device and a yarn pressing Y-axis moving device, the yarn pressing Z-axis moving device includes a yarn pressing Z-axis guiding component, a yarn pressing Z-axis driving component and a yarn pressing Z-axis platform 1146, the yarn pressing Z-axis guiding component includes a yarn pressing Z-axis guide rail 1144 vertically mounted on the second moving platform 22, a yarn pressing Z-axis slider 1145 slidably disposed along the yarn pressing Z-axis guide rail, the yarn pressing Z-axis driving component includes a yarn pressing Z-axis motor 1141 mounted on the second moving platform 22 and a yarn pressing Z-axis screw 1142 connected to a yarn pressing Z-axis motor shaft, the yarn pressing Z-axis platform 1146 is mounted on the yarn pressing Z-axis slider 1145, a yarn pressing Z-axis screw nut 1143 is mounted on the yarn pressing Z-axis platform 1146, and the yarn pressing Z-axis stepping motor 1141 reciprocally moves in the vertical direction through the yarn pressing Z-axis screw 1142 and the yarn pressing Z-axis screw nut 1143;

As shown in fig. 9, the yarn pressing Y-axis moving device includes a yarn pressing Y-axis guiding member and a yarn pressing Y-axis driving member, wherein the yarn pressing Y-axis guiding member includes a yarn pressing Y-axis guiding rail 1132 horizontally mounted on a yarn pressing Z-axis platform 1146 perpendicular to the length direction of the spinning frame, and the yarn pressing Y-axis driving member is a yarn pressing Y-axis cylinder 1131 mounted on the yarn pressing Z-axis platform 1146, and drives the yarn pressing member 111 to horizontally reciprocate along the direction perpendicular to the length direction of the spinning frame by extending and retracting the cylinder rod.

The spindle brake assembly includes a spindle brake presser member 291 and a spindle brake presser Z-axis movement apparatus, as shown in figure 3,

the spindle brake component 291 is in a Z-shaped structure, other structural forms are not required to be excluded, the lower end of the spindle brake component 291 is connected with a spindle brake Z-axis sliding block 292 and a spindle brake Z-axis driving cylinder 294 in a spindle brake Z-axis moving device in order to adapt to spindle brake demands, the upper end of the spindle brake Z-axis moving device stretches out towards the direction close to the spinning frame, the spindle brake Z-axis moving device (serving as a spindle brake driving device) comprises a spindle brake Z-axis guide component and a spindle brake Z-axis driving component, the spindle brake Z-axis guide component comprises a spindle brake Z-axis guide rail 293 which is arranged on the first moving platform 28 in the vertical direction, a spindle brake Z-axis sliding block 292 which is arranged along the spindle brake Z-axis guide rail in a sliding mode, and the spindle brake Z-axis driving component stretches out and retracts to push the spindle brake Z-axis driving cylinder 294 which is arranged on the first moving platform 28, and the spindle brake component 291 is reciprocated in the vertical direction through a cylinder rod.

When the ring spinning yarn splicing device moves to the headstock or the tailstock of the spinning machine only along the movement freedom degree of the length direction of the spinning machine, the spindle pressing and braking device component can interfere with the headstock or the tailstock, therefore, the degree of freedom in the horizontal direction perpendicular to the length of the spinning machine is required to be increased for the spindle pressing and braking device component, the spindle pressing and braking device component 291 is driven to be far away from the spinning machine when spindle braking is not required, the spindle pressing and braking device component is prevented from interfering with the headstock or the tailstock when the ring spinning yarn splicing device moves to the headstock or the tailstock of the spinning machine, and the ring spinning yarn splicing device moves to a position close to the spindle pressing and braking device when spindle braking is required.

By the mechanism and the device, the work flow of the ring spinning yarn splicing device is as follows:

the elastic yarn end 1215 is unwound from the tube or tube yarn and then passes through the yarn guide tube, the end is held by the yarn holding device, the yarn end clamping structure of the yarn winding holding device is moved between the yarn guide port support 1212 of the yarn holding device and the yarn guide tube 1211 to clamp and fix the yarn end, as shown in fig. 11 to 13, the yarn end clamping structure pulls the elastic yarn end 1215 out of the yarn guide tube 1211, the elastic yarn end 1215 is hung into the yarn guide port 1216 under the cooperation of the yarn outlet device and the yarn winding device, and the yarn guide port 1216 is in a spiral curve shape similar to a yarn guide hook of a ring spinning frame in the embodiment. The yarn carrier 1216 is then driven by the carrier swing motor 1251 to prepare the yarn carrier for winding up in the cocked state, as shown in fig. 14. The elastic joint yarn 1215 is wound into a yarn loop on the outer sides of the three cantilever rods 1341 of the yarn winding holder 134 under the motion cooperation of the yarn discharging device and the yarn winding device, as shown in fig. 15, the number of the wound yarn loop should be greater than one loop, so that the middle section of the elastic joint yarn 1215 presses the yarn end clamped by the yarn taking end clamping structure. After the winding is completed, the tail end of the elastic yarn 1215 is held by the yarn-picking member as shown in fig. 15 to 17, so as to keep the shape of the yarn loop wound by the elastic yarn 1215 unchanged. Thus, the preparation of the yarn before the yarn splicing is completed.

When a certain spindle position breaks, the ring spinning yarn joint device moves to the broken spindle position along the length direction of the spinning frame, the second platform Z-axis lifting cylinder 271 and the second moving platform Y-axis cylinder 231 send the second moving platform to the preset yarn receiving position which is highest in the vertical direction and closest to the spinning frame in the horizontal direction, as shown in fig. 2-3, the second platform Z-axis lifting cylinder 271 is retracted, the ring plate gripper 21 is put on the ring plate 41 of the spinning frame in the gravity descending process of the second moving platform 22, the second platform Z-axis lifting cylinder 271 is separated from the lifting connecting bracket 25, and the second moving platform moves up and down along with the ring plate 41 in a step-up motion. In this embodiment, the second moving platform is jacked up when the cylinder rod of the second platform Z-axis lifting cylinder 271 extends, which does not exclude that the second platform Z-axis lifting cylinder 271 is installed upside down, so that the second moving platform is lifted up when the cylinder rod retracts vertically upwards, and the second moving platform is free when the cylinder rod extends downwards, for example, after the cylinder rod passes through the second moving platform, a baffle plate is fixed at the tail end of the cylinder rod, so that the second moving platform can be lifted by the cylinder.

A section of elastic joint yarn 1215 between the pick-up ring member and the yarn guide 1216 is stretched into a straight-line section having a diameter size substantially the same as that of the ring 42, as shown in fig. 18, and then the straight-line section of elastic joint yarn 1215 is suspended in the bead ring 43 by the cooperative movement of the yarn winding movement device and the yarn guide movement device, in this embodiment, the bead ring 43 is attracted by the bead ring positioning magnetic steel mounted on the ring plate of the spinning frame to have remained on the side of the ring 42 away from the direction of the spinning frame.

After the wire ring 43 is hung, the lifting connection bracket 25 is jacked up by the second platform Z-axis lifting cylinder 271, the ring plate gripper 21 and the second moving platform 22 are separated from the ring plate 41 (the ring plate 41, the ring 42 and the wire ring 43 are synchronously moved up and down in the structure of the traditional ring spinning frame, other components of the yarn tube 44, the yarn guide hook 45, the front roller 46, the leather roller 47 and the ingot brake 48 are not synchronously moved with the ring plate 41), meanwhile, the yarn winding device moves forward to a position slightly higher than the top of the yarn tube 44 along the Z axis, a cylinder rod of the yarn guide hook lifting cylinder 1375 in the yarn guide hook lifting device stretches out to push the lifting part to be inserted below the yarn guide hook 45, and the yarn winding device is driven to simultaneously move forward along the Z axis and the Y axis by the yarn winding moving device until the yarn wound on the yarn winding holder 134 is directly above the yarn tube 44 by the elastic joint 1215. The cylinder rod of the second platform Z-axis lifting cylinder 271 is retracted and separated from the lifting connection bracket 25, the second movable platform 22 descends by its gravity, and the ring plate grip 21 is again put on the ring plate 41 to move the second movable platform 22 up and down with the ring plate 41. The yarn winding holder 134 is driven by the yarn winding Z-axis moving means to a height position adjacent to the upper surface of the ring 42, and as shown in fig. 20, the presser member 291 pushes up the spindle stopper 48 forward to the Z-axis to stop the bobbin 44. The yarn pressing part 111 moves to the yarn pressing station under the driving of the yarn pressing Z-axis moving device, the yarn pressing part 111 is rapidly pressed on the surfaces of the three cantilever rods of the yarn tube 44 and the yarn winding holder 134 by the yarn pressing Y-axis moving device, as shown in fig. 20 to 21, the yarn coil is pressed and fixed, the yarn coil clamping cylinder 1351 in the yarn coil picking part and the yarn coil clamping cylinder 1361 in the yarn taking head clamping structure are simultaneously opened, the yarn end of the section of elastic joint yarn 1215 and the tail end of the yarn coil are released, at this time, the cylinder rod of the yarn winding Z-axis lifting cylinder 1317 extends to drive the yarn winding holder 134 to rapidly move in the positive direction of the Z-axis (vertically upwards direction), the yarn coil wound by the elastic joint yarn 1215 is pressed by the yarn pressing part 111 and does not move upwards along with the yarn winding holder 134, the yarn coil wound by the elastic joint yarn 1215 is enveloped on the surface of the yarn tube 44, and the yarn end part of the elastic joint yarn 1215 and the broken end envelope of the original yarn are ensured not to be thrown out due to the centrifugal force of yarn when the yarn is normally spun inside the coil. Since the winding holder has a gap between the two cantilever arms 1341 close to the spinning frame, and the rotary cross bar 1371 is arranged on the yarn lifting guide hook device, after the yarn joining ring on the winding holder is separated from the winding holder, the yarn pressing part 111 and the winding holder 134 withdraw from the spinning area away from the spinning frame to avoid affecting the subsequent joining operation. If the rotary cross bar 1371 is not arranged on the yarn lifting and guiding hook device, the yarn winding retainer needs to be lifted to a height higher than the yarn tube before the yarn winding retainer withdraws in the direction away from the spinning machine, otherwise, the yarn lifting and guiding hook component can interfere with the yarn tube in the process of withdrawing the yarn winding retainer in the direction away from the spinning machine, and similarly, if the yarn winding retainer is of a cylindrical structure, the yarn winding retainer needs to be lifted to a height not interfering with the yarn tube before the yarn winding retainer withdraws in the direction away from the spinning machine, and then the yarn winding retainer can be horizontally withdrawn in the direction away from the spinning machine.

To this end, the elastic yarn 1215 is suspended in the bead ring 43 and one end is stably wound around the bobbin 44.

The cylinder rod of the second platform Z-axis lifting cylinder 271 is extended to jack up the lifting connection bracket 25 again, and the ring plate grip 21 is separated from the second moving platform 22 from the ring plate 41. The other end of the elastic joint yarn 1215 is pulled by the yarn guide 1216 of the yarn discharging device to the position of the yarn guide hook 45, and the elastic joint yarn 1215 is wound into the yarn guide hook 45 under the cooperation of the yarn guide Y-axis moving device, the yarn guide Z-axis moving device and the yarn guide X-axis moving device, as shown in FIG. 22. The elastic yarn 1215 is then pulled to the position of the front roller 46 by the yarn feeding device, and the yarn tube 44 is rotated again by the pressure brake member 291 releasing the brake 48, and the elastic yarn 1215 is fed between the front roller 46 and the leather roller 47 while the leather roller 47 is rotated, as shown in fig. 23 to 24. The elastic yarn end 1215 is cut off and the yarn end is again held by the yarn holding device and the yarn cutting device, and as shown in fig. 25, the yarn positioned on the yarn guide side of the yarn holding device is pulled away by the roller and the leather roller, and the cut yarn end is held by the yarn holding device; another way is that the yarn holding device holds and presses the elastic joint yarn 1215, and the elastic joint yarn 1215 held by the yarn holding device is pulled off under the traction of the front roller 46 and the leather roller 47, which does not require a yarn cutting device.

The above process completes the entire piecing process of this embodiment and leaves the ends of the grippable elastic piecing yarn 1215 for the next piecing.

As shown in fig. 2, a track parallel to the length direction of the ring spinning frame is additionally arranged on the ground outside the ring spinning frame, the reference is the outer side surface of a ring rail, the ring spinning yarn joint device is arranged on the track, so that the ring spinning yarn joint device moves according to a preset track, when yarn is broken in the spinning process, the ring spinning yarn joint device moves to a corresponding spindle position joint according to a yarn breaking alarm signal, the distance between the guide rail and the spinning frame is suitable for the joint action of the ring spinning yarn joint device, and the movement range of each device such as a yarn outlet device, a yarn winding device, a yarn lifting and guiding device, a yarn pressing device and the like, which is required to be covered by the joint, can be ensured. It is not excluded that the first moving platform 28 is mounted on an automatic guiding and transporting platform (for example, a moving platform such as an AGV and an AMR), so that flexible movement of the ring spinning yarn splicing device can be realized, and flexibility of automatic splicing operation of the ring spinning yarn splicing device is improved.

Example 3 of a ring spun yarn splicing method and apparatus of the present invention (see fig. 1 to 26):

the difference between the present embodiment and the ring spun yarn splicing method and the device embodiment 2 is that:

the ring spinning yarn breakage detection device of the embodiment is additionally provided with a bead ring finding device, as shown in fig. 4 and 10.

The steel wire ring finding device comprises a steel wire ring gripper 144, a steel wire ring gripper driving device and a steel wire ring positioning component, wherein the steel wire ring gripper 144 is a hollow cylindrical component which can be sleeved outside a cop, the diameter of the lower edge of the steel wire ring gripper is equal to that of the steel ring 42, the lower edge of the steel wire ring gripper can press the steel wire ring 43 on the steel ring,

the steel wire ring gripper driving device comprises a steel wire ring gripper rotating device, a steel wire ring searching Z-axis moving device and a steel wire ring searching Y-axis moving device, wherein the steel wire ring gripper rotating device comprises a gripper rotating stepping motor 1431, a gripper rotating transmission synchronous belt 1432 and a gripper rotating positioning bearing 1433; the steel wire searching ring Z-axis moving device comprises a steel wire searching ring Z-axis guiding component, a steel wire searching ring Z-axis driving component and a steel wire searching ring Z-axis platform 1416, wherein the steel wire searching ring Z-axis guiding component comprises a steel wire searching ring Z-axis guide rail 1414 which is arranged on the second moving platform 22 in the vertical direction and a steel wire searching ring Z-axis sliding block 1415 which is arranged along the steel wire searching ring Z-axis guide rail in a sliding manner, the steel wire searching ring Z-axis driving component comprises a steel wire searching ring Z-axis motor 1411 which is arranged on the second moving platform 22 and a steel wire searching ring Z-axis lead screw 1412 which is connected with a steel wire searching ring Z-axis motor shaft, the steel wire searching ring Z-axis platform 1416 is arranged on the steel wire searching ring Z-axis sliding block 1415, the steel wire searching ring Z-axis lead screw nut 1413 is arranged on the steel wire searching ring Z-axis platform 1416, and the steel wire searching ring Z-axis motor 1411 drives the steel wire searching ring Z-axis platform 1416 to reciprocate in the vertical direction through the steel wire searching ring Z-axis lead screw 1412 and the steel wire searching ring Z-axis lead screw nut 1413. The Y-axis moving device comprises a Y-axis guiding component, a Y-axis driving component and a Y-axis platform 1426, wherein the Y-axis guiding component comprises a Y-axis guiding rail 1424 horizontally installed on the Z-axis platform 1416 in the direction perpendicular to the length direction of the spinning frame, a Y-axis sliding block 1425 slidingly configured along the Y-axis guiding rail, the Y-axis driving component comprises a Y-axis motor 1421 installed on the Z-axis platform 1416 and a Y-axis screw 1422 connected with the Y-axis motor shaft, the Y-axis platform 1426 is installed on the Y-axis sliding block 1425, the Y-axis screw nut 1423 is installed on the Y-axis platform 1426, and the Y-axis motor 1421 drives the Y-axis platform 1426 to move reciprocally in the direction perpendicular to the length direction of the spinning frame through the Y-axis screw 2 and the Y-axis screw nut 1423.

The bead ring positioning component is a component capable of blocking the bead ring, as shown in fig. 10, the bead ring stop lever 1434 (serving as the bead ring positioning component) is a rod-shaped component which is adjacent to the bead ring gripper 144 and is fixedly mounted below the bead ring Y-axis platform 1426, the distance between the bead ring stop lever 1434 and the rotation center of the bead ring gripper 144 is equal to the radius of the ring, and when the bead ring gripper 144 drives the bead ring 43 to rotate, the rod-shaped bead ring positioning component blocks and stops the bead ring on one side of the ring away from the spinning frame.

When the wire ring needs to be found and positioned, the second moving platform 22 jacks up the lifting connecting support 25 to the highest position by the second platform Z-axis lifting cylinder 271, the ring plate gripper 21 does not contact the ring plate 41, and the wire ring searching Z-axis moving device and the wire ring searching Y-axis moving device move cooperatively to enable the wire ring gripper 144 to move to the position above the bobbin 44 and to be coaxial with the bobbin, as shown in fig. 10. The cylinder rod of the second platform Z-axis lifting cylinder 271 is retracted and separated from the lifting connecting bracket 25, the second moving platform 22 descends by the gravity thereof, the ring plate gripper 21 is put on the ring plate 41 of the spinning frame, the second moving platform 22 moves along with the ring plate 41, and the bead ring gripper 144 is conveyed to a position coaxial with the bobbin 44 and the ring 42 by the bead ring searching Z-axis moving device and the bead ring searching Y-axis moving device. The lower end of the bead ring gripper 144 is a conical section, the end size is close to or slightly smaller than the inner diameter of the ring 42, and the surface of the conical section is elastically filled with silica gel or the like with a larger friction coefficient. The bead ring gripper 144 is driven by the bead ring Z-axis moving device to press against the inner side surface of the upper end of the ring 42 from top to bottom, so as to press the bead ring 43 and tilt the outer side, and the outer side tilting facilitates the hanging of the elastic joint yarn 1215. The gripper rotation stepper motor 1431 drives the traveler gripper 144 to rotate and friction drives the traveler 43 to rotate along the ring, and the traveler stop lever 1434 stops and stops the traveler 43 on the side of the ring away from the spinning frame, as shown in fig. 26.

In addition to the bead ring positioning member being mounted on the bead ring Y-axis platform 1426, the bead ring positioning member may be mounted on the second moving platform 22, and when the bead ring positioning member is mounted on the second moving platform 22, the bead ring positioning member is a rod-shaped member having a horizontal movement degree of freedom perpendicular to the length direction of the spinning frame, and when the ring plate grip 21 is put on the ring plate 41, the height position of the bead ring positioning member corresponds to the height position of the ring 42, the bead ring positioning member is moved to a position close to the outer edge of the ring 42 in the horizontal direction perpendicular to the length of the spinning frame, and when the bead ring 43 is turned to a position away from the spinning frame side, the bead ring is stopped at the bead ring positioning member as long as the bead ring grip is turned more than one turn. Then the bead ring hanging process can be performed.

In addition to using the blocking member as the bead ring positioning member, a bead ring detection sensor may be used as the bead ring positioning member. For example, a bead ring detection sensor mounted on the second moving platform 22 or the bead ring Y-axis platform 1426 for directly or indirectly detecting whether the bead ring moves to the side of the ring 42 far away from the spinning frame is used as a bead ring positioning component, the bead ring detection sensor can be divided into a contact type and a non-contact type, the bead ring detection sensor capable of detecting the bead ring has mature and wide application in a broken end detection system, and the non-contact type mainly comprises photoelectric type, inductive type, hall type and other sensors, or an image sensor combined image processing method is adopted to detect the position of the bead ring; the contact bead ring detection sensor is triggered by the movement of bead ring 43. The wire ring detection sensor detects the moving position of the wire ring 43 in the rotation process of the wire ring gripper, and the wire ring gripper 144 stops rotating when the wire ring moves to the side of the ring away from the spinning frame; and then carrying out the procedure of hanging the bead ring.

If the yarn lifting guide hook device is mounted on the yarn winding holder of the yarn winding device, if the gap between the yarn guide hook and the top end of the cop cannot pass through the bead ring finding device, the yarn guide hook needs to be lifted up to avoid interference with the bead ring finding device in the process of sleeving the bead ring finding device on the outside of the cop, in this case, the ring spinning joint device needs to be mounted with the yarn lifting guide hook device on the bead ring Y-axis platform 1426, and the yarn lifting guide hook device is the same as the yarn lifting guide hook device mounted on the yarn winding holder 134 and is used for lifting the yarn guide hook when the bead ring gripper is sleeved into the cop. If the yarn lifting and guiding hook device is arranged on the first moving platform or the second moving platform, the yarn lifting and guiding hook device does not need to be independently arranged on the bead ring finding device.

Example 4 of a ring spun yarn splicing method and apparatus of the present invention (see fig. 1 to 28):

the difference between this embodiment and the ring spun yarn splicing method and apparatus of embodiment 3 is that:

in this embodiment, the cylindrical bead ring gripper 144 is replaced by a rod-shaped bead ring gripper 1440, as shown in fig. 28, the rotation track of the rod-shaped bead ring gripper 1440 is cylindrical, the diameter of the lower end is approximately the same as that of the ring, the most of the longitudinal rod is cut off along the circumferential direction of the bead ring gripper 144, the process of finding the bead ring by using the rod-shaped bead ring gripper 1440 is similar to that of using the cylindrical bead ring gripper 144, the rotation center of the rod-shaped bead ring gripper 1440 is aligned with the center of the bobbin and then descends to the height of the lower end of the rod-shaped bead ring gripper 1440 to be close to the top surface of the ring, the rod-shaped bead ring gripper 1440 starts to rotate, the tail end of the rod-shaped bead ring gripper 1440 pushes the bead ring to move along the ring, when the bead ring rotates to contact the bead ring stop lever 1434, the movement is stopped, and then the joint yarn is hung into the bead ring.

In order to improve reliability, the magnetic steel is arranged at the lower end of the rod-shaped steel wire ring gripper 1440, which is close to the steel collar, the magnetic steel at the tail end of the rod-shaped steel wire ring gripper 1440 catches the steel wire ring and drags the steel wire ring to move along the steel collar in the rotation process of the rod-shaped steel wire ring gripper 1440, in order to prevent the steel wire ring from being found due to the fact that the yarn head can push the steel wire ring to slide on the steel collar when the cop rotates, the rotation direction of the rod-shaped steel wire ring gripper is opposite to the rotation direction of the cop, and therefore the steel wire ring can be found even if the cop yarn head swings to cause the steel wire ring to slide on the steel collar.

In addition to directly using the bead ring block as the bead ring positioning member, in the case of using the rod-shaped bead ring gripper 1440, a sensor mounted on the bead ring Y-axis platform 1426 to detect the rotational position of the rod-shaped bead ring gripper 1440 may be used as the bead ring positioning member, and when detecting that the rod-shaped bead ring gripper 1440 rotates one full turn back to the side of the ring away from the spinning frame, it is considered that the bead ring has reached the side of the ring away from the spinning frame, the position of the bead ring is indirectly detected by detecting the rotational position of the rod-shaped bead ring gripper 1440, and even an angle sensor such as an encoder mounted on the gripper rotating stepper motor 1431 may be used as the bead ring detection sensor. It is not excluded that the magnetic steel is not installed at the lower end of the rod-shaped steel wire ring gripper, a section of flexible material is installed, and the steel wire ring is searched by rotating by contacting the top surface of the steel collar. It is not excluded that the rod-shaped bead ring gripper adopts a triangular joint with the upper door width and the lower hook to increase the stability and rigidity.

Since the lowest position of the yarn guiding hook 45 is higher than the top end of the yarn tube 44, in this embodiment, the rod-shaped bead ring grip 1440 is in a rod shape, the circumferential direction is not closed, and the initial position of the rotation is assumed to be at the position of the farthest ring from the spinning frame, and the bead ring device returns to the initial position after one turn, so in the process of moving from the direction far away from the spinning frame to the direction approaching to the spinning frame, as long as the bead ring Y-axis platform 1426 and the grip rotation positioning bearing 1433 can pass through the position higher than the top end of the yarn tube 44 and do not interfere with the yarn guiding hook 45, the rod-shaped bead ring grip 1440 cannot interfere with the tube yarn, and in this case, the bead ring device does not need to be provided with a yarn guiding hook lifting device. Only when the bead ring gripper 144 of the bead ring device is in a higher cylindrical shape and the height cannot pass through the space between the guide hook and the top end of the bobbin to be sleeved outside the bobbin without lifting the guide hook, the guide hook device is required to be lifted, the height of the bead ring gripper 144 depends on whether an air ring is mounted on the spinning frame, if the air ring is mounted, the height of the bead ring gripper 144 must be higher than the height from the air ring to the top surface of the ring, otherwise, the bead ring cannot be found, if the spinning frame is not mounted with the air ring, the bead ring gripper 144 only needs to be in a short height, and in this case, if the guide hook is not lifted and the bead ring gripper can be sleeved outside the bobbin, the guide hook device is not required to be lifted.

In the embodiments 1 and 2 of the ring spinning yarn splicing device, the yarn guide opening 1216 is driven by the yarn guide opening swinging device to swing to be in the horizontal state in fig. 11 or the vertical state in fig. 14, when the yarn guide opening is in the horizontal state in fig. 11, the yarn guide opening 1216, the yarn holding device and the yarn guide tube 1211 are positioned on the same straight line, so that the yarn-taking-out clamping structure is convenient for clamping the yarn of the splice and winding the yarn of the splice into the yarn guide opening 1216, and when the yarn guide opening is in the vertical state in fig. 14, the yarn guide opening is convenient for being matched with the yarn winding holder 134 to wind the yarn of the splice onto the yarn winding holder 134, and in addition, when the steel wire ring and the winding roller are worn, the yarn guide opening also needs to swing to be in an angle direction inclined downwards than the horizontal. The yarn gripping device and the yarn cutting device may be fixedly mounted on the yarn guide Y-axis platform 1226 so that the yarn gripping device and the yarn cutting device are positioned in the same position as those in fig. 11, but do not swing with the yarn guide, and only the degree of freedom of the swinging of the yarn guide may be maintained. Although the degree of freedom of swinging of the yarn guide is preferably swinging about a horizontal axis in the longitudinal direction of the spinning frame, swinging about axes in other directions is not excluded. In addition to the swing, the degree of freedom in the vertical direction may be used instead of the degree of freedom in the swing of the yarn guide, and the function of the yarn guide may be realized.

In the embodiment, the yarn holding device and the yarn cutting device are fixedly arranged on the yarn guiding Y-axis platform 1226, so that the yarn holding device and the yarn cutting device are consistent with the positions of the yarn holding device and the yarn cutting device in fig. 11 and do not swing along with the yarn guiding port, and meanwhile, the swinging freedom of the yarn guiding port is replaced by the moving freedom of the yarn guiding port in the vertical direction relative to the yarn holding device; the method comprises the following steps: the yarn guide opening only keeps the opening ring-shaped part of the end part, and the yarn guide opening is driven to move vertically and vertically relative to the yarn cutting device near the outlet position of the yarn cutting device by a vertical driving device arranged on a yarn guide Y-axis platform 1226; when the yarn guide opening is positioned at the same height with the yarn holding device, the yarn cutting device and the yarn guide tube 1211 in the vertical direction, the yarn taking clamping structure is convenient for clamping the end part of the joint yarn and winding the joint yarn into the yarn guide opening; when the vertical direction of the yarn guide opening is higher than the yarn holding device, the connector yarn can be pulled to wind on the yarn winding retainer; the yarn guide can also be lowered to a position lower than the yarn holding device to pass through the bead ring and wind the leather roller. The driving device mounted on the yarn guiding Y-axis platform 1226 for driving the yarn guiding opening to move in the vertical direction can adopt a linear motion mechanism or device such as a reciprocating belt, a micro linear motor, an air cylinder and the like.

Example 5 of a method and apparatus for piecing ring spun yarn of the present invention:

since the lowest position of the yarn guiding hook is higher than the top end surface of the yarn bobbin and the highest position of the yarn guiding hook is also determined, the yarn guiding hook lifting device can be arranged on the first moving platform 28 or the second moving platform 22, when the second platform Z-axis lifting cylinder 271 lifts the second moving platform 22 to the highest position, the height position between the first moving platform 28 or the second moving platform 22 and the top of the yarn bobbin is determined, when the yarn guiding hook lifting device is arranged on the first moving platform 28 or the second moving platform 22, the yarn guiding hook lifting part is a rod-shaped or plate-shaped part which can be inserted below the yarn guiding hook to lift the yarn guiding hook, the yarn guiding hook lifting driving mechanism drives the yarn guiding hook lifting part to have the horizontal movement freedom degree in the vertical direction and the direction perpendicular to the length direction of the yarn guiding frame, and when the yarn guiding hook lifting driving mechanism drives the yarn guiding hook lifting part to be lifted to the height which can be inserted between the yarn guiding hook and the top surface of the yarn bobbin, the yarn guiding hook lifting driving part is driven to horizontally move to the yarn guiding hook to the position close to the yarn guiding hook, and the yarn guiding hook lifting driving part is not to be kept around the yarn guiding frame, and the yarn guiding hook lifting driving part is not kept around the yarn guiding frame. The proposal is provided with the yarn lifting and guiding hook device independently, and the yarn winding device and the wire ring finding device are not provided with the yarn lifting and guiding hook device independently.

Example 6 of the method and apparatus for piecing ring spun yarn of the present invention (see fig. 1 to 27):

as shown in fig. 27, in this embodiment, the yarn-backing member 151 replaces the yarn pressing member 111 in the ring spinning yarn splicing method and apparatus of embodiment 2, and the yarn-backing member 151 has a "Y" shaped rod-like structure, and is mounted on the second moving platform by a double-rod cylinder, and has a degree of freedom of horizontal movement in a direction perpendicular to the length direction of the spinning frame with respect to the second moving platform. When the yarn receiving ring wound on the outer side of the yarn winding holder is required to be withdrawn, the cylinder drives the yarn receiving ring component 151 to move to a position close to the yarn winding holder in the horizontal direction of the spinning frame, the yarn receiving ring component 151 is positioned at the upper part of the yarn receiving ring on the outer side of the yarn winding holder, and when the yarn winding holder 134 moves upwards, the yarn receiving ring component 151 is required to block the yarn receiving ring, in which case the yarn receiving ring component 151 only has one degree of freedom in horizontal movement perpendicular to the length direction of the spinning frame; alternatively, the yarn winding holder may be pushed up and down by the yarn winding member 151 being moved actively in the vertical direction, and in this case, the yarn winding member 151 needs to have a degree of freedom in the vertical direction.

In addition to the second moving platform, the yarn withdrawal ring member may be mounted on the yarn winding holder 134, specifically: the yarn winding holder is provided with a yarn coil pushing handle as a yarn coil withdrawing component, the yarn coil pushing handle is a horseshoe-shaped component with 3 holes, the three holes of the yarn coil pushing handle are respectively sleeved on three cantilever rods 1341 supporting the yarn coil of the joint on the yarn winding holder, the yarn coil pushing handle is guided by the three cantilever rods on the yarn winding holder and is pushed by an air cylinder arranged on the yarn winding holder in the vertical direction to reciprocate along the length direction (the vertical direction) of the three cantilever rod components, and when the yarn coil pushing handle moves downwards to the limit position, the yarn coil on the yarn winding holder is pushed down from the yarn winding holder. The coil pushing hand is not limited to the horseshoe shape as long as the joint coil can be pushed down from the winding holder when moving down.

The invention relates to a ring spinning yarn splicing method and a device, wherein a right-hand Cartesian coordinate system is adopted as a coordinate system in a drawing. The driving device in all embodiments can be replaced by common components and mechanisms with the same functions, for example, the movement driven by a cylinder can be changed into the driving of a linear motor, a rotary motor screw rod, a motor cam push rod, an electromagnet and the like, and the guiding can be realized by adopting the guiding of an optical axis, a sliding block or a linear guide rail and the like, which belong to common knowledge in the field and are not repeated. The invention is not limited to the embodiments discussed above, and other variants can be deduced from the invention by a person skilled in the art, which variants also belong to the subject matter of the invention.

Claims

1. A ring spinning yarn joint device is characterized by comprising a first moving platform, a second moving platform, a yarn outlet device, a yarn winding device, a yarn pressing device and a yarn stopping device,

the first moving platform at least has the freedom degree of horizontal movement along the length direction of the spinning frame;

the second moving platform is arranged on the first moving platform, and has the freedom degree of vertical lifting relative to the first moving platform and the freedom degree of horizontal movement perpendicular to the length direction of the spinning frame;

The yarn discharging device comprises a yarn guiding port, a yarn guiding port moving device and a yarn holding device, wherein the yarn holding device comprises a yarn holding part, a yarn holding driving part and a yarn holding guiding part, the yarn guiding port and the yarn holding device are arranged on the second moving platform through the yarn guiding port moving device, the yarn guiding port moving device drives the yarn guiding port and the yarn holding device to have the freedom degree of movement along the vertical direction, the horizontal direction parallel to the length direction of the spinning frame and the horizontal direction perpendicular to the length direction of the spinning frame relative to the second moving platform, and the yarn guiding port also has one swinging freedom degree or the freedom degree of movement relative to the vertical direction of the yarn holding device;

the yarn winding device comprises a yarn winding holding device and a yarn winding moving device, the yarn winding holding device is arranged on the second moving platform through the yarn winding moving device, the yarn winding moving device drives the yarn winding holding device to have the freedom degree of movement along the vertical direction, the horizontal direction parallel to the length direction of the spinning frame and the horizontal direction perpendicular to the length direction of the spinning frame relative to the second moving platform, and the yarn winding holding device comprises a yarn winding holder and a yarn picking ring component;

the ring spinning yarn splicing device comprises a yarn lifting guide hook device, the yarn lifting guide hook device comprises a yarn lifting guide hook part and a yarn lifting guide hook driving mechanism, the yarn lifting guide hook part is a part which can extend below a yarn guiding hook to lift the yarn guiding hook, and the yarn lifting guide hook part is arranged on a first moving platform, a second moving platform or a yarn winding holding device through the yarn lifting guide hook driving mechanism;

The yarn pressing device comprises a yarn pressing part and a yarn pressing part moving device, and the yarn pressing part is arranged on the second moving platform or the yarn winding retainer through the yarn pressing part moving device;

the spindle brake device comprises a spindle brake part and a spindle brake driving device, the spindle brake part is arranged on the first moving platform through the spindle brake driving device, and the spindle brake driving device drives the spindle brake part to have at least a spindle brake direction movement degree of freedom relative to the first moving platform.

2. Ring spun yarn splicing apparatus as claimed in claim 1, wherein

A rod-shaped ring plate gripper extending out of the second lifting platform is arranged on one side of the second moving platform close to the spinning frame,

the yarn guide port is an open annular component with spun yarn capable of entering and exiting,

the yarn holding driving component drives the yarn holding component to do relative opening and closing movement, the yarn holding guiding component guides the opening and closing movement of the yarn holding component,

the yarn winding retainer is a hollow component with a claw structure or a cylindrical structure which can be sleeved outside the cop, the yarn picking ring component is a component with a positioning joint yarn structure which is arranged on the yarn winding retainer,

when the yarn lifting and guiding hook component is installed on the first moving platform or the second moving platform, the yarn lifting and guiding hook component at least has two degrees of freedom of movement along the vertical direction and the horizontal direction perpendicular to the length direction of the spinning frame relative to the first moving platform or the second moving platform; when the yarn lifting guide hook component is installed on the yarn winding retainer, the yarn lifting guide hook component has horizontal movement freedom degree along the direction perpendicular to the length direction of the spinning frame relative to the yarn winding retainer;

The yarn pressing component has at least a vertical motion degree of freedom relative to the yarn winding holder when the yarn pressing component is arranged on the yarn winding holder, has at least a horizontal motion degree of freedom perpendicular to the length direction of the spinning frame relative to the second moving platform when the yarn pressing component is arranged on the second moving platform,

the direction of the brake spindle is the direction in which the spindle pressing brake component needs to exert force on the spindle brake handle when the spindle is braked.

3. Ring spun yarn splicing apparatus as claimed in claim 2, wherein

The winding holder is of a claw type structure, namely the winding holder is provided with at least three rod-shaped components which are arranged in parallel and are connected together at the top, the rod-shaped components are positioned on a circle with the diameter equivalent to that of the ring when seen in the parallel direction of the rod-shaped components, and the winding holder is of a cylindrical structure, namely the winding holder is of a cylindrical component with the diameter equivalent to that of the ring;

the yarn picking ring component is provided with a positioning joint yarn structure, namely a hook-shaped structure or a clamping structure capable of holding yarns is arranged on the yarn picking ring component.

4. Ring spun yarn splicing apparatus as claimed in claim 1, wherein

The second lifting platform is driven by the second moving platform driving device to lift along the vertical direction, the second moving platform descends along the vertical direction by gravity, when the second moving platform lifts to the highest limit position along the vertical direction and starts to fall after horizontally moving to the limit position closest to the spinning frame along the length direction perpendicular to the spinning frame, the ring plate gripper can be lapped on the ring plate in the falling process of the second moving platform,

The yarn taking and clamping structure capable of clamping the joint yarn is arranged on the yarn winding retainer, and the yarn taking and clamping structure adopts the opening and closing movement of two parts or the elastic clamping structure to clamp the joint yarn;

the yarn picking ring component is closer to the spinning frame than the joint yarn wound on the yarn winding retainer,

the swinging freedom degree of the yarn guide opening is swinging around a horizontal axis in the length direction of the spinning frame.

5. Ring spun yarn splicing apparatus as claimed in claim 1, wherein

A yarn cutting device is arranged between the yarn guiding opening and the yarn holding device, the yarn cutting device comprises a yarn cutting cutter and a cutting driving device,

the tail end of the yarn lifting and guiding hook part comprises a rotary cross rod along the length direction of the spinning frame, the rotary cross rod has the freedom degree of swinging around the axis in the vertical direction, the rotary cross rod is positioned at the limit position parallel to the length direction of the spinning frame by means of elastic force, the tail end of the rotary cross rod far away from the swinging axis can swing towards the direction approaching the spinning frame,

the ring spinning yarn joint device comprises a bead ring finding device.

6. Ring spun yarn splicing apparatus as claimed in claim 5, wherein

The wire ring finding device comprises a wire ring gripper, a wire ring gripper driving device and a wire ring positioning component, wherein the wire ring gripper is a hollow cylindrical component or a rod-shaped component which can be sleeved outside a cop, the wire ring gripper is arranged on a second moving platform through the wire ring gripper driving device, the wire ring gripper driving device drives the wire ring gripper to have horizontal motion degrees of freedom relative to the second moving platform along the vertical direction and perpendicular to the length direction of the spinning frame, and meanwhile, the wire ring gripper has the degree of freedom of rotation around the axis of the vertical direction, and a track formed by rotation of the wire ring gripper is cylindrical with the diameter corresponding to the diameter of the ring; the steel wire ring positioning component is a steel wire ring blocking component or a steel wire ring detection component, and the steel wire ring blocking component is a rod-shaped component arranged on the second moving platform or the steel wire ring gripper driving device; the steel wire ring detection component is a steel wire ring detection sensor which is arranged on the second moving platform or the steel wire ring gripper driving device and is used for directly or indirectly detecting whether the steel wire ring moves to one side of the ring far away from the spinning frame.

7. A ring spun yarn splicing method, according to any of claims 1-6, characterized in that after the yarn breaks during the ring spun yarn spinning process, the method comprises the following steps:

the first step: winding one end of a joint yarn on a hollow yarn winding retainer to form a polygonal or circular yarn ring, wherein the joint yarn is elastic spun yarn;

and a third step of: sleeving a yarn winding retainer wound with the joint yarn on the outer side of the bobbin or the cop;

fourth step: the yarn splicing device comprises a yarn winding holder, a yarn splicing ring and a yarn splicing ring, wherein the yarn splicing ring is wound on the yarn winding holder and is retracted from the yarn winding holder;

fifth step: passing the joint yarn positioned on one side of the bead ring far away from the yarn tube through the yarn guide hook;

sixth step: the method comprises the steps of feeding the joint yarn passing through a yarn guide hook between a roller and a leather roller in a hanging manner of winding the leather roller, cutting off the joint yarn or holding the joint yarn to enable the joint yarn to be broken by the roller and the leather roller;

and step three or step four, the spindle is braked before the step four, so that the spindle stops rotating, and after the step five and before the step six, the joint yarn is fed into the roller and the leather roller, the spindle brake is loosened, so that the spindle starts rotating.

8. The ring spun yarn splicing method of claim 7, wherein

The 'winding leather roller' is hung by the joint yarn from the shaft end side of the leather roller and between the roller and the leather roller at the roller feeding side; if the ring spinning frame is provided with a balloon ring, the third step is to penetrate the joint yarn between the bead ring and the winding retainer into the balloon ring before the winding retainer is sleeved outside the cop, and the fifth step is to penetrate the joint yarn on one side of the bead ring far away from the cop into the balloon ring before the joint yarn passes through the yarn guide hook.

9. The ring spun yarn splicing method of claim 7, wherein

The yarn winding holding member is retracted and the yarn winding ring is retracted and sleeved outside the yarn tube or the cop at a position slightly higher than the top surface of the ring.