CN210765671U

CN210765671U - Multi-channel hollow spindle fancy twisting device

Info

Publication number: CN210765671U
Application number: CN201920787733.2U
Authority: CN
Inventors: 薛元; 高卫东; 杨锐; 张晨启; 李宇威
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-06-16
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to a multi-channel hollow spindle fancy twisting device, which is designed to introduce a multi-channel interactive overfeeding mechanism and an interactive twisting structure, wherein a servo motor arranged in each link respectively realizes asynchronous control, can accurately realize the high-efficiency acquisition of structure, form and color change fancy yarns, simultaneously introduces two hollow spindles which work in opposite directions and in turn, applies two layers of fixed yarns twisted in opposite directions to twist the fancy yarns, and can effectively improve the firmness of the yarns; meanwhile, an interactive asymmetric twisting method based on the device is designed, and through the synergistic effect of matching interactive overfeeding and interactive twisting, the random interchange of the decorative yarn and the core yarn is realized, the random interchange of different twisting modes such as alternate twisting, wrapping twisting, winding twisting, ring twisting and the like is realized, the random interchange of patterns such as cabling, knots, loops, braids and the like is realized, and the structure, the shape, the color and the like of the fancy yarn are changed in a rich and varied mode.

Description

Multi-channel hollow spindle fancy twisting device

Technical Field

The invention relates to a multi-channel hollow spindle fancy twisting device, and belongs to the technical field of digital twisting.

Background

The hollow spindle fancy twister usually firstly enters the twisting area by overfeeding the decorative yarn to the core yarn, different fancy forms are formed by controlling the overfeeding amount, and three-component fancy yarns of decorative yarn, core yarn and fixed yarn are formed by yarn fixing and wrapping. The main problems of the hollow spindle spinning for producing fancy yarn are as follows:

1. single twisting mode

The traditional hollow spindle twisting machine twists two yarns respectively output by a front roller and a rear roller through hollow spindle twisting to form a folded yarn. Because the front roller and the rear roller are not on the same axis, one yarn is directly fed into the twisting zone after being output by the front roller, and the other yarn is fed into the twisting zone after being output by the rear roller and then turned by the guide rod. Under the action of the hollow spindle twister, the two yarns are converged at a twisting point and twisted into a folded yarn.

The difference of the two yarn conveying modes determines that the speed of the yarn output by the front roller can be larger than that of the yarn output by the rear roller, and the speed of the yarn output by the rear roller cannot be larger than that of the yarn output by the front roller. Thus, the twisted strands are wound onto the spindle by the steel wire loop, the speed of the strand wound onto the spindle generally being equal to the speed of the back roller output sliver. For this reason, when the knot yarn, the loop yarn, and the braid yarn are spun, the yarn delivered from the front roller is used as the cover yarn, and the yarn delivered from the rear roller is used as the core yarn, and therefore, the two yarns cannot be switched, and the yarn twisting method is simple.

2. The spun fancy yarn has single variety

When the hollow spindle twisting machine processes the fancy yarn, the total number of the core yarn and the decorative yarn is not more than two, and the core yarn and the decorative yarn can not be mutually switched in the twisting process, so the fancy yarn can be produced only by a single twisting mode of wrapping, twisting, circle twisting and the like, the interactive conversion between the decorative yarn and the core yarn can not be realized in the fancy forming process, and the interactive conversion between the decorative yarn and the core yarn can not be realized in fancy yarn structures of wrapping, knots, circle rings, braids and the like. In the spinning process of the fancy yarns, the hollow spindle twisting machine is difficult to regulate and control the changes of the wrapping structure, the form, the color, the style and the hand feeling of the fancy yarns, so the hollow spindle twisting machine cannot meet the requirements of fancy yarn garment materials with various form changes, rich and fine colors and agile styles.

Disclosure of Invention

The invention aims to solve the technical problem of providing a multi-channel hollow spindle fancy twisting device, which is designed and introduced with a multi-channel interactive overfeeding mechanism and an interactive twisting structure, realizes asynchronous control by servo motors arranged in each link respectively, can realize high-efficiency obtaining of fancy yarns with structure, shape and color change, and can obtain firmer yarns by fixing the fancy yarns by double-layer fixed lines in opposite directions.

The invention adopts the following technical scheme for solving the technical problems: the invention designs a multi-channel hollow spindle fancy twisting device which is used for feeding multiple paths of raw yarns into a twisting zone in an interactive mode at different speeds, and realizing free switching of interactive twisting of multiple raw yarns and free switching of symmetrical twisting and asymmetrical twisting at a twisting point, so that fancy yarns with variable structures, shapes and colors are formed; the multi-path interactive overfeeding mechanism comprises a PLC (programmable logic controller), a multi-path interactive overfeeding mechanism and an interactive twisting structure, wherein the multi-path interactive overfeeding mechanism comprises a roller shaft, a positioning shaft, at least one auxiliary gear, at least two rollers, at least two press rollers, at least two jaws and servo motors which are respectively in one-to-one correspondence with the roller shaft and the auxiliary shafts, and the roller shaft and the auxiliary shafts are respectively connected with the corresponding servo motors;

in the multi-path interactive overfeed mechanism, the number of rollers is equal to the number of auxiliary shafts plus 1, and the number of auxiliary gears is equal to the number of auxiliary shafts; the inner diameter and the outer diameter of each roller are the same, and the inner diameter of each roller is adapted to the outer diameter of the roller shaft; each roller is sleeved on a roller shaft, one roller is fixedly connected with the roller shaft through a key, the other rollers are respectively and oppositely rotated with the roller shaft through loops, the rollers which rotate relatively, the auxiliary gears and the auxiliary shafts are in one-to-one correspondence, each auxiliary gear is respectively and fixedly sleeved on the corresponding auxiliary shaft, each auxiliary gear rotates along with the rotation of the corresponding auxiliary shaft, the straight line of each auxiliary shaft is parallel to the straight line of the roller shaft, each auxiliary gear is respectively butted with the corresponding roller through a synchronous toothed belt, and the rollers which rotate relatively rotate respectively rotate under the transmission of the corresponding auxiliary gear through the synchronous toothed belt;

the number of the jaws and the number of the compression rollers are equal to the number of the rollers, the inner diameter and the outer diameter of each jaw are equal to each other, the inner diameter of each jaw is matched with the outer diameter of the positioning shaft, each jaw is sleeved on the positioning shaft respectively, each jaw and the positioning shaft rotate relative to each other, the inner diameter and the outer diameter of each compression roller are equal to each other, the inner diameter of each compression roller is matched with the outer diameter of each jaw, each jaw corresponds to each compression roller one by one, and each compression roller is fixedly sleeved on the outer side of the corresponding jaw; the straight line of the positioning shaft is parallel to the straight line of the roller shaft, the positions of the press rollers are respectively in one-to-one correspondence with the positions of the rollers, and a preset gap is kept between the peripheral surface of each roller and the peripheral surface of the press roller at the corresponding position, wherein the gap is smaller than the outer diameter of the original yarn;

the number of the raw yarns participating in twisting is not more than the number of the rollers, the PLC is respectively butted with each servo motor in the multi-path interactive overfeed structure, the roller shafts and the auxiliary shafts are respectively controlled through the servo motors based on the PLC, the raw yarns are respectively fed into the rollers in a one-to-one correspondence mode, and the rollers are driven to rotate by combining the friction force between the rollers and the corresponding compression rollers based on the rotation of the fed raw yarns, so that the continuous conveying of the raw yarns is realized;

the interactive twisting structure comprises a guide bar, a driving gear, a toothed sliding rod, a first hollow spindle, a second hollow spindle, a ring plate and servo motors which are respectively in one-to-one correspondence with the driving gear, the first hollow spindle, the second hollow spindle and the ring plate, wherein the driving gear, the first hollow spindle, the second hollow spindle and the ring plate are respectively connected with the corresponding servo motors;

in the interactive twisting structure, the number of the positioning guide rods on the guide bar is equal to the number of the rollers plus 1, the driving gear is butted with the insection on the insection slide bar, the guide bar is fixedly arranged on the face, back to the insection, of the insection slide bar, the insection slide bar moves back and forth along the straight line where the insection slide bar is located along with the rotation of the driving gear, namely the guide bar moves along with the movement of the insection slide bar; a first hollow spindle is located at a downstream position of the guide bar; the second hollow ingot is positioned at the downstream position of the first hollow ingot;

the PLC is respectively butted with each servo motor in the interactive twisting structure, each raw yarn continuously conveyed by the multi-path interactive overfeeding mechanism is respectively and correspondingly fed into each adjacent positioning guide rod gap on the guide bar on a one-to-one basis that the PLC controls the driving gear, the first hollow spindle, the second hollow spindle and the ring rail through each servo motor, then all the raw yarns passing through each adjacent positioning guide rod gap on the guide bar are sequentially converged at the same point to obtain converged yarn, then the converged yarn is continuously conveyed to the first hollow spindle, the first hollow spindle simultaneously receives the first fixed yarn and the converged yarn and is twisted, the wrapping of the converged yarn by the first fixed yarn is realized, and a first wrapping combined structure is obtained;

and finally, continuously conveying the first wrapping combined structure to a second hollow spindle, simultaneously receiving the second fixed yarn and the first wrapping combined structure by the second hollow spindle, twisting, and realizing wrapping of the first wrapping combined structure by the second fixed yarn, wherein the twisting directions of the first hollow spindle and the second hollow spindle are opposite to each other, so that the interactive twisting and the switching between the symmetrical twisting and the asymmetrical twisting are realized, and the fancy yarn with the changed structure, shape and color is obtained.

As a preferred technical scheme of the invention: also comprises a yarn guide hook P₁The fancy thread obtained by the interactive twisting structure passes through the yarn guide hook P₁And then, the steel wire is sent to a winding area.

As a preferred technical scheme of the invention: the PLC is respectively butted with the corresponding servo motors through the servo drivers.

As a preferred technical scheme of the invention: the PLC controller is connected with the corresponding servo motors and the speed reducers in series in sequence through the servo drivers respectively and then is in butt joint with the controlled objects.

Compared with the prior art, the multi-channel hollow spindle fancy twisting device has the following technical effects by adopting the technical scheme:

the invention designs a multi-channel hollow spindle fancy twisting device, which is characterized in that a multi-channel interactive overfeeding mechanism and an interactive twisting structure are introduced, the servo motors arranged in all links respectively realize asynchronous control, the efficient obtaining of fancy yarns with structure, form and color change can be accurately realized, two hollow spindles working in opposite directions and in sequence are introduced simultaneously, two layers of fixed yarns twisted in opposite directions are used for twisting the fancy yarns, and the firmness of the yarns can be effectively improved; meanwhile, an interactive asymmetric twisting method based on the device is designed, and through the synergistic effect of matching interactive overfeeding and interactive twisting, the random interchange of the decorative yarn and the core yarn is realized, the random interchange of different twisting modes such as alternate twisting, wrapping twisting, winding twisting, ring twisting and the like is realized, the random interchange of patterns such as cabling, knots, loops, braids and the like is realized, and the structure, the shape, the color and the like of the fancy yarn are changed in a rich and varied mode.

Drawings

FIG. 1 is a side view of a multi-channel hollow-spindle fancy twister designed according to the present invention;

FIG. 2 is a top view of the multi-channel hollow-spindle fancy twister of the present invention;

FIG. 3 is a front view of a multi-path interactive overfeeding mechanism in the multi-channel hollow spindle fancy twisting apparatus designed according to the present invention;

FIG. 4 is a top view of a multi-path interactive overfeeding mechanism in the multi-channel hollow-spindle fancy twisting apparatus of the present invention;

fig. 5 is a schematic diagram of an electric driving module in the multi-channel hollow spindle fancy twisting apparatus of the present invention.

Wherein A is₁Roller shaft, F positioning shaft, C₁Drive gear, C₂Toothed slide bar, S guide bar, K₁First hollow ingot, K₂A second hollow ingot.

Detailed Description

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

When a plurality of yarns are twisted, symmetrical twisting and asymmetrical twisting can be generated. When five yarns (or a plurality of yarns) with the same linear density, twist and color are fed and twisted at the same speed, fancy yarns with symmetrical structures and shapes are formed, and the twisting process is called symmetrical twisting. Twisting five (or more) yarns with at least one of unequal linear density, twist, color and feeding speed to form fancy yarn with random variation in structure, shape and color, and the twisting process is called asymmetric twisting. The asymmetrically twisted yarn is called fancy yarn because the structure, shape and color of the yarn are randomly changed. For example, when five yarns having a large difference in linear density are twisted with each other, the finer yarn is wrapped around the coarser yarn to form a wrapped structure; when five yarns with larger twist difference are mutually twisted, the yarn with lower twist can be wrapped on the yarn with higher twist to form a wrapping and twisting structure; when five yarns with different colors are twisted with each other, a double-color twisted fancy yarn is formed; when five yarns with different feeding speeds are twisted with each other, a wrapping twisting structure, a winding twisting structure, a circle twisting structure and a plait twisting structure are respectively formed according to the speed difference.

The invention designs a multi-channel hollow spindle fancy twisting device which is used for feeding multiple paths of raw yarns into a twisting zone in an interactive mode at different speeds, and realizing free switching of interactive twisting of multiple raw yarns and free switching of symmetrical twisting and asymmetrical twisting at a twisting point, so that fancy yarns with variable structures, shapes and colors are formed; in practical application, as shown in fig. 1 and 2, the system specifically comprises a PLC controller, a multi-path interactive overfeeding mechanism and an interactive twisting structure, wherein the multi-path interactive overfeeding mechanism comprises a roller shaft a₁A positioning shaft F, at least one auxiliary shaft, at least one auxiliary gear, at least two rollers, at least two press rollers, at least two jaws and a roller shaft A respectively₁Servo motors with auxiliary shafts in one-to-one correspondence, roller shafts A₁And each auxiliary shaft is respectively connected with a corresponding servo motor.

As shown in fig. 4, in the multi-path interactive overfeed mechanism, the number of rollers is equal to the number of auxiliary shafts plus 1, and the number of auxiliary gears is equal to the number of auxiliary shafts; the inner diameter and the outer diameter of each roller are the same, and the inner diameter of each roller is equal to the roller shaft A₁The outer diameters of the two parts are adaptive; each roller is sleeved on a roller shaft A₁And one of the rollers is connected with a roller shaft A₁Are fixedly connected with each other by a key, and the other rollers are respectively connected with a roller shaft A₁The movable sleeves rotate relative to each other, the rollers rotating relative to each other, the auxiliary gears and the auxiliary shafts correspond to each other one by one, the auxiliary gears are respectively and fixedly sleeved on the corresponding auxiliary shafts, the auxiliary gears rotate along with the rotation of the corresponding auxiliary shafts, and straight lines of the auxiliary shafts are all equal to the roller shafts A₁The straight lines are parallel, each auxiliary gear is butted with the corresponding roller through the synchronous toothed belt, and each roller rotating relatively rotates under the transmission of the corresponding auxiliary gear through the synchronous toothed belt.

As shown in fig. 3, the number of the jaws and the number of the compression rollers are equal to the number of the rollers, the inner diameter and the outer diameter of each jaw are equal to each other, the inner diameter of each jaw is adapted to the outer diameter of the positioning shaft F, each jaw is sleeved on the positioning shaft F, each jaw and the positioning shaft F rotate relative to each other, the inner diameter and the outer diameter of each compression roller are equal to each other, the inner diameter of each compression roller is adapted to the outer diameter of each jaw, each jaw corresponds to each compression roller one by one, and each compression roller is fixedly sleeved outside the corresponding jaw; the straight line of the positioning shaft F and the roller shaft A₁The straight lines are parallel, the positions of the press rollers respectively correspond to the positions of the rollers one by one, and a preset gap is kept between the peripheral surface of each roller and the peripheral surface of the press roller at the corresponding position, wherein the gap is smaller than the outer diameter of the original yarn.

The number of the raw yarns participating in twisting is not more than the number of the rollers, the PLC is respectively butted with each servo motor in the multi-path interactive overfeed structure, and the PLC is used for respectively butting the roller shafts A through the servo motors₁And each auxiliary shaft advancesAnd line control, feeding each raw yarn into each roller in a one-to-one correspondence mode, and driving the corresponding compression roller to rotate by combining the friction force between the rollers and the corresponding compression roller based on the rotation of each roller for feeding the raw yarns so as to realize the continuous conveying of each raw yarn.

As shown in FIG. 1, the interactive twisting structure comprises a guide bar S and a driving gear C₁Toothed sliding bar C₂The first hollow ingot K₁A second hollow ingot K₂Ring plate, and driving gear C₁The first hollow ingot K₁A second hollow ingot K₂Servo motor and driving gear C corresponding to ring plate one by one₁The first hollow ingot K₁A second hollow ingot K₂And the ring plates are respectively connected with corresponding servo motors.

In the interactive twisting structure, the number of the positioning guide rods on the guide bar S is equal to the number of the rollers plus 1, and the driving gear C drives the rollers₁With insection slide bar C₂The upper insection is butted, the guide bar S is fixedly arranged on an insection slide bar C₂On the surface back to the insection, an insection slide bar C₂Follow-up driving gear C₁Is rotated and moves back and forth along the straight line where the guide bar S is positioned, namely the guide bar S follows the insection slide bar C₂Move by the movement of (1); first hollow ingot K₁Downstream of the guide bar S; second hollow ingot K₂In the first hollow ingot K₁To a downstream position of (a).

The PLC controller is respectively butted with each servo motor in the interactive twisting structure, and the drive gear C is respectively butted through each servo motor based on the PLC controller₁The first hollow ingot K₁A second hollow ingot K₂And the ring plate is controlled, the raw yarns continuously conveyed by the multi-path interactive overfeeding mechanism are respectively fed into gaps between adjacent positioning guide rods on the guide bar S in a one-to-one correspondence manner, then the raw yarns passing through the gaps between the adjacent positioning guide rods on the guide bar S are sequentially converged at the same point to obtain converged yarns, and then the converged yarns are continuously conveyed to the first hollow spindle K₁First hollow ingot K₁And simultaneously receiving the first fixed yarns and the converged yarns, twisting, and wrapping the converged yarns by the first fixed yarns to obtain a first wrapping combined structure.

Finally, the first wrapping combined structure is continuously conveyed to a second hollow ingot K₂Second hollow ingot K₂Simultaneously receiving the second fixed yarn and the first wrapping combined structure, twisting to realize wrapping of the first wrapping combined structure by the second fixed yarn, and wrapping the first hollow spindle K₁With a second hollow ingot K₂The twisting directions of the yarn twisting device are opposite to each other, namely, the interactive twisting and the switching between the symmetrical twisting and the asymmetrical twisting are realized, and the fancy yarn with the structure, the shape and the color change is obtained.

The multi-channel ring spindle fancy twisting device is also provided with a yarn guide hook P in the specific implementation application₁The fancy thread obtained by the interactive twisting structure passes through the yarn guide hook P₁Then, sending the mixture into a winding area; in the respective control of each servo motor, a servo driver and a speed reducer which are respectively corresponding to each servo motor one by one are also designed, and the PLC controller is respectively connected with a controlled object in series after the servo drivers sequentially correspond to the servo motors and the speed reducers, so that each electric driving combination structure in the multi-channel ring spindle fancy twisting device is designed, as shown in fig. 5.

In practical application, the PLC is respectively butted with each servo motor, and the roller shafts A are respectively butted through each servo motor based on the PLC₁And a driving gear C₁The first hollow ingot K₁A second hollow ingot K₂The ring plate and the auxiliary shafts are controlled, the raw yarns are respectively fed into the rollers in a one-to-one correspondence mode, and the rollers are driven to rotate by combining the friction force between the rollers and the corresponding compression rollers based on the rotation of the fed raw yarns, so that the raw yarns are conveyed; the raw yarns are continuously and correspondingly fed into gaps between every two adjacent positioning guide rods on the guide bar S one by one, then the raw yarns passing through the gaps between every two adjacent positioning guide rods on the guide bar S are sequentially gathered at the same point to obtain gathered yarns, and then the gathered yarns are continuously conveyed to a first hollow spindle K₁First hollow ingot K₁Simultaneously receiving the first fixed yarns and the converged yarns, twisting the first fixed yarns and the converged yarns to wrap the converged yarns by the first fixed yarns, and obtaining a first wrapping combined structure; finally, the first wrapping combined structure is continuously conveyed to a second hollow ingot K₂Second hollow ingot K₂Simultaneously receiving the second fixed yarn and the first wrapping combined structure, twisting to realize wrapping of the first wrapping combined structure by the second fixed yarn, and wrapping the first hollow spindle K₁With a second hollow ingot K₂The twisting directions of the yarn twisting device are opposite to each other, namely, the interactive twisting and the switching between the symmetrical twisting and the asymmetrical twisting are realized, and the fancy yarn with the structure, the shape and the color change is obtained.

Based on the designed multi-channel hollow spindle fancy twisting device, the invention further designs an interactive asymmetric twisting method based on the device, and based on the control of the PLC controller on each servo motor in the interactive twisting structure, the PLC controller further aims at the roller axis A in the multi-channel interactive overfeeding structure₁The auxiliary shafts are respectively controlled by corresponding servo motors to realize asynchronous driving rotation of the rollers, and the speed change of the guide bar S is combined on the basis of different speed combinations among the rollers by respectively controlling the output speed of the raw yarn corresponding to the rollers so as to realize the asynchronous driving rotation of the rollers₁And a second hollow ingot K₂The symmetric twisting and asymmetric twisting operations are carried out under the action of mutually reverse twisting directions, the color change of the fancy yarn brought by the interchange of the decorative yarn and the core yarn is realized, and the conversion of the structure and the form of the fancy yarn brought by the interchange of the alternate twisting, the wrapping twisting, the winding twisting and the ring twisting is realized, between the parallel twisting, the knot, the loop and the plait pattern structure and the form, so that the fancy yarn with the changed structure, form and color is obtained.

In specific practical application, for a multi-channel hollow spindle fancy twisting device, such as a three-channel hollow spindle fancy twisting device and a five-channel hollow spindle fancy twisting device, the number of rollers in the three-channel hollow spindle fancy twisting device is 3, and three raw yarns Y are used₁、Y₂、Y₃Feeding the raw yarns Y into the rollers in a one-to-one correspondence manner₁Corresponding to a feeding speed of V₁Of the base yarn Y₂Corresponding to a feeding speed of V₂Of the base yarn Y₃Corresponding to a feeding speed of V₃Then, the operation of symmetrical twisting and asymmetrical twisting of the multi-channel hollow spindle fancy twisting device is carried out according to the following rulesRespectively obtaining corresponding fancy yarns;

structural aspect 1:

V₁<V₂＝V₃，Y₁as core yarn, Y₂、Y₃In the state of decorative yarn:

when V is₂/V₁＝V₃/V₁When 1.05-1.15, Y₂、Y₃Synchronously twisted on Y₁Forming a double-layer core-spun yarn;

when V is₂/V₁＝V₃/V₁When 1.15-1.35, Y₂、Y₃Synchronously twisting on Y₁Forming a bicolor knot line;

when V is₂/V₁＝V₃/V₁1.40-3.50, Y₂、Y₃The synchronous ring is twisted on Y₁Forming a double-color coil wire;

V₂<V₁＝V₃，Y₂as core yarn, Y₁、Y₃In the state of decorative yarn:

when V is₁/V₂＝V₃/V₂When 1.05-1.15, Y₁、Y₃Synchronously twisted on Y₂Forming a double-layer core-spun yarn;

when V is₁/V₂＝V₃/V₂When 1.15-1.35, Y₁、Y₃Synchronously twisting on Y₂Forming a bicolor knot line;

when V is₁/V₂＝V₃/V₂1.40-3.50, Y₁、Y₃The synchronous ring is twisted on Y₂Forming a double-color coil wire;

V₃<V₁＝V₂，Y₃as core yarn, Y₁、Y₂In the state of decorative yarn:

when V is₁/V₃＝V₂/V₃When 1.05-1.15, Y₁、Y₂Synchronously twisted on Y₃Forming a double-layer core-spun yarn;

when V is₁/V₃＝V₂/V₃When 1.15-1.35, Y₁、Y₂Synchronously twisting on Y₃Forming a bicolor knot line;

when V is₁/V₃＝V₂/V₃1.40-3.50, Y₁、Y₂The synchronous ring is twisted on Y₃Forming a double-color coil wire;

structural aspect 2:

V₁<V₂<V₃，Y₁as core yarn, Y₂、Y₃In the state of decorative yarn:

when V is₂/V₁＝1.05-1.15，V₃/V₁When 1.15-1.35, Y₂Wrapped and twisted at Y₁Form a core, Y₃Twisted on Y₁Forming a knot thereon;

when V is₂/V₁＝1.05-1.15，V₃/V₁1.40-3.50, Y₂Wrapped and twisted at Y₁Form a core, Y₃Is twisted in Y₁Forming a ring on the upper part;

when V is₂/V₁＝1.15-1.35，V₃/V₁1.40-3.50, Y₂Wrapped and twisted at Y₁Form a knot on, Y₃Is twisted in Y₁Forming a ring on the upper part;

V₂<V₁<V₃，Y₂as core yarn, Y₁、Y₃In the state of decorative yarn:

when V is₁/V₂＝1.05-1.15，V₃/V₂When 1.15-1.35, Y₁Wrapped and twisted at Y₂Form a core, Y₃Twisted on Y₂Forming a knot thereon;

when V is₁/V₂＝1.05-1.15，V₃/V₂1.40-3.50, Y₁Wrapped and twisted at Y₂Form a core, Y₃Twisted on Y₂Forming a ring on the upper part;

when V is₁/V₂＝1.15-1.35，V₃/V₂1.40-3.50, Y₁Wrapped and twisted at Y₂Form a knot on, Y₃Winding and twistingAt Y₂Forming a ring on the upper part;

V₃<V₂<V₁，Y₃as core yarn, Y₁、Y₂In the state of decorative yarn:

when V is₂/V₃＝1.05-1.15，V₁/V₃When 1.15-1.35, Y₂Wrapped and twisted at Y₃Form a core, Y₁Twisted on Y₃Forming a knot thereon;

when V is₂/V₃＝1.05-1.15，V₁/V₃1.40-3.50, Y₂Wrapped and twisted at Y₃Form a core, Y₁Twisted on Y₃Forming a ring on the upper part;

when V is₂/V₃＝1.15-1.35，V₁/V₃1.40-3.50, Y₂Wrapped and twisted at Y₃Form a knot on, Y₁Twisted on Y₃Forming a ring on the upper part;

color aspect:

V₁、V₂、V₃under the unequal state:

when V is₁Minimum and V₂/V₁＝1.05-1.15，V₃/V₁When 1.15-1.35, then Y₂Wrapped and twisted at Y₁Form Y on₂Core-spun with the corresponding color of Y₃Twisted on Y₁Form Y on₃The knot with the corresponding color;

when V is₁Maximum and V₂/V₃＝1.05-1.15，V₁/V₃When 1.15-1.35, then Y₂Wrapped and twisted at Y₃Form Y on₂Core-spun with the corresponding color of Y₁Twisted on Y₃Form Y on₁The knot with the corresponding color;

when V is₁Centered and when V₁/V₂＝1.05-1.15，V₃/V₂When 1.15-1.35, then Y₁Wrapped and twisted at Y₂Form Y on₁Core-spun with the corresponding color of Y₃Twisted on Y₂Form Y on₃The knot with the corresponding color;

when V is₂/V₁＝V₃/V₁When 1.05-1.15, Y₂、Y₃Synchronously twisted on Y₁To form Y₂、Y₃Color-mixed core-spun yarns with corresponding colors respectively;

when V is₂/V₁＝V₃/V₁When 1.15-1.35, Y₂、Y₃Synchronously twisting on Y₁To form Y₂Corresponding color knot and Y₃The knot with the corresponding color;

when V is₂/V₁＝V₃/V₁1.40-3.50, Y₂、Y₃The synchronous ring is twisted on Y₁To form Y₂Corresponding color circle and Y₃The corresponding color circle;

when V is₁>V₂＝V₃，(Y₂+Y₃) As core yarn, Y₁In the state of decorative yarn:

when V is₁/V₂＝V₁/V₃When 1.05-1.15, Y₁Is wrapped and twisted on (Y)₂+Y₃) To form Y₁The core-spun yarn with the corresponding color;

when V is₁/V₂＝V₁/V₃When 1.15-1.35, Y₁Is twisted on (Y)₂+Y₃) To form Y₁The corresponding color knot line;

when V is₁/V₂＝V₁/V₃1.40-3.50, Y₁Is twisted in (Y)₂+Y₃) To form Y₁And (5) winding the corresponding color coil.

In a five-channel hollow spindle fancy twisting device, the number of rollers is 5, five raw yarns Y are applied₁、Y₂、Y₃、Y₄、Y₅Feeding the raw yarns Y into the rollers in a one-to-one correspondence manner₁Corresponding to a feeding speed of V₁Of the base yarn Y₂Corresponding to a feeding speed of V₂Of the base yarn Y₃Corresponding to a feeding speed of V₃Of the base yarn Y₄Corresponding to a feeding speed of V₄Of the base yarn Y₅Corresponding to a feeding speed of V₅Executing the operation of symmetrical twisting and asymmetrical twisting by the multi-channel hollow spindle fancy twisting device according to the following rule to respectively obtain corresponding fancy yarns;

structural aspect 1:

V₁<V₂<V₃<V₄<V₅when the core yarn is Y₁The decorative yarn is Y₂、Y₃、Y₄、Y₅In the following state:

when V is₂/V₁＝1.05-1.15，V₃/V₁＝1.15-1.35，V₄/V₁＝1.40-2.50，V₅/V₁When 2.50-3.80, Y₂Wrapped and twisted at Y₁Form a core, Y₃Twisted on Y₁Form a knot on, Y₄Is twisted in Y₁Upper form a small loop, Y₅Is twisted in Y₁Forming a large circle on the upper part;

V₂<V₃<V₄<V₅<V₁when the core yarn is Y₂The decorative yarn is Y₁、Y₃、Y₄、Y₅In the following state:

when V is₃/V₂＝1.05-1.15，V₄/V₂＝1.15-1.35，V₅/V₂＝1.40-2.50，V₁/V₂When 2.50-3.60, Y₃Wrapped and twisted at Y₂Form a core, Y₄Twisted on Y₂Form a knot on, Y₅Is twisted in Y₂Upper form a small loop, Y₁Is twisted in Y₂Forming a large circle on the upper part;

V₃<V₄<V₅<V₁<V₂when the core yarn is Y₃The decorative yarn is Y₁、Y₂、Y₄、Y₅In the following state:

when V is₄/V₃＝1.05-1.15，V₅/V₃＝1.15-1.35，V₁/V₃＝1.35-2.50，V₄/V₃When 2.50-3.50, Y₄Wrapped and twisted at Y₃Form a core, Y₅Twisted on Y₃Form a knot on, Y₁Twisted on Y₃Upper form a small loop, Y₂Is twisted in Y₃Forming a large circle on the upper part;

structural aspect 2:

five base yarns Y₁、Y₂、Y₃、Y₄、Y₅Respectively corresponding to densities of ρ₁、ρ₂、ρ₃、ρ₄、ρ₅；

V₁<V₂＝V₃＝V₄＝V₅And ρ₁＜ρ₂＜ρ₃＜ρ₄＜ρ₅Then Y is₁As core yarn, Y₂、Y₃、Y₄、Y₅In the state of decorative yarn:

when V is₂/V₁＝V₃/V₁＝V₄/V₁＝V₅/V₁When 1.05-1.15, Y₂、Y₃、Y₄、Y₅Sequentially and respectively entwisted at Y₁Forming five-ply nep yarn;

when V is₂/V₁＝V₃/V₁＝V₄/V₁＝V₅/V₁When 1.15-1.35, Y₂、Y₃、Y₄、Y₅Are respectively wrapped and twisted on Y in turn₁Forming five core-spun yarns;

when V is₂/V₁＝V₃/V₁＝V₄/V₁＝V₅/V₁When 1.36-3.50, Y₂、Y₃、Y₄、Y₅Sequentially and respectively twisted on Y₁Forming five-loop yarns;

V₂<V₁＝V₃＝V₄＝V₅and ρ₂＜ρ₃＜ρ₄＜ρ₅＜ρ₁Then Y is₂As core yarn, Y₃、Y₄、Y₅、Y₁In the state of decorative yarn:

when V is₃/V₂＝V₄/V₂＝V₅/V₂＝V₁/V₂When 1.16-1.25, Y₁、Y₃、Y₄、Y₅Sequentially and respectively entwisted at Y₂Forming five-ply nep yarn;

when V is₂/V₁＝V₃/V₁＝V₄/V₁＝V₅/V₁When 1.15-1.25, Y₁、Y₃、Y₄、Y₅Are respectively wrapped and twisted on Y in turn₂Forming five core-spun yarns;

when V is₂/V₁＝V₃/V₁＝V₄/V₁＝V₅/V₁When 1.26-3.50, Y₁、Y₃、Y₄、Y₅Sequentially and respectively twisted on Y₂Forming five-loop yarns;

V₃<V₁＝V₂＝V₄＝V₅and ρ₃＜ρ₄＜ρ₅＜ρ₁＜ρ₂Then Y is₃As core yarn, Y₁、Y₂、Y₄、Y₅In the state of decorative yarn:

when V is₄/V₃＝V₅/V₃＝V₁/V₃＝V₂/V₃When 1.05-1.15, Y₂、Y₁、Y₄、Y₅Sequentially and respectively entwisted at Y₃Forming five-ply nep yarn;

when V is₄/V₃＝V₅/V₃＝V₁/V₃＝V₂/V₃When 1.16-1.25, Y₂、Y₁、Y₄、Y₅Sequentially and respectively entwisted at Y₃Forming five core-spun yarns;

when V is₄/V₃＝V₅/V₃＝V₁/V₃＝V₂/V₃When 1.26-3.50, Y₂、Y₁、Y₄、Y₅Sequentially and respectively entwisted at Y₃Forming five-loop yarns;

V₄<V₁＝V₂＝V₃＝V₅and ρ₄＜ρ₅＜ρ₁＜ρ₂＜ρ₃Then Y is₄As core yarn, Y₁、Y₂、Y₃、Y₅In the state of decorative yarn:

when V is₃/V₄＝V₅/V₄＝V₁/V₄＝V₂/V₄When 1.05-1.15, Y₂、Y₁、Y₃、Y₅Sequentially and respectively entwisted at Y₄Forming five-ply nep yarn;

when V is₃/V₄＝V₅/V₄＝V₁/V₄＝V₂/V₄When 1.16-1.25, Y₂、Y₁、Y₃、Y₅Sequentially and respectively entwisted at Y₄Forming five core-spun yarns;

when V is₃/V₄＝V₅/V₄＝V₁/V₄＝V₂/V₄When 1.26-3.50, Y₂、Y₁、Y₃、Y₅Sequentially and respectively entwisted at Y₄Forming five-loop yarns;

V₅<V₁＝V₂＝V₃＝V₄and ρ₅＜ρ₁＜ρ₂＜ρ₃＜ρ₄Then Y is₅As core yarn, Y₁、Y₂、Y₃、Y₄In the state of decorative yarn:

when V is₁/V₅＝V₂/V₅＝V₃/V₅＝V₄/V₄When 1.05-1.15, Y₁、Y₂、Y₃、Y₄Sequentially and respectively entwisted at Y₅Forming five-ply nep yarn;

when V is₁/V₅＝V₂/V₅＝V₃/V₅＝V₄/V₄When 1.16-1.25, Y₁、Y₂、Y₃、Y₄Sequentially and respectively entwisted at Y₅Forming five core-spun yarns;

when V is₁/V₅＝V₂/V₅＝V₃/V₅＝V₄/V₄When 1.26-3.50, Y₁、Y₂、Y₃、Y₄Sequentially and respectively entwisted at Y₅Forming five-loop yarns;

structural aspect 3:

V₁＝V₂<V₃＝V₄＝V₅then Y is₁、Y₂As core yarn, Y₃、Y₄、Y₅Under the state of decorating the yarn:

when V is₁/V₂＝1，V₃/V₁＝V₄/V₁＝V₅/V₁When 1.05-1.15, Y₁、Y₂Are twisted with each other, (Y)₃+Y₄+Y₅) Is twisted on (Y)₁+Y₂) Forming a triplet of binder yarns;

when V is₁/V₂＝1，V₃/V₁＝V₄/V₁＝V₅/V₁When 1.16-1.5, Y₁、Y₂Are twisted with each other, (Y)₃+Y₄+Y₅) Is wrapped and twisted on (Y)₁+Y₂) Forming a triple core spun yarn;

when V is₁/V₂＝1，V₃/V₁＝V₄/V₁＝V₅/V₁When 1.5-3.5, Y₁、Y₂Are twisted with each other, (Y)₃+Y₄+Y₅) Is twisted in (Y)₁+Y₂) Forming a triple loop yarn;

V₃＝V₄<V₁＝V₂＝V₅then Y is₃、Y₄As core yarn, Y₁、Y₂、Y₅Under the state of decorating the yarn:

when V is₃/V₄＝1，V₁/V₃＝V₂/V₃＝V₅/V₃When 1.05-1.15, Y₄、Y₅Are twisted with each other, (Y)₁+Y₂+Y₅) Is twisted on (Y)₃+Y₄) Forming a triplet of binder yarns;

when V is₃/V₄＝1，V₁/V₃＝V₂/V₃＝V₅/V₃When 1.16-1.5, Y₄、Y₅Are twisted with each other, (Y)₁+Y₂+Y₅) Is twisted on (Y)₃+Y₄) Forming a triple core spun yarn;

when V is₃/V₄＝1，V₁/V₃＝V₂/V₃＝V₅/V₃When 1.5-3.5, Y₄、Y₅Are twisted with each other, (Y)₁+Y₂+Y₅) Is twisted on (Y)₃+Y₄) Forming a triple loop yarn;

V₁＝V₅<V₂＝V₃＝V₄then Y is₁、Y₅As core yarn, Y₂、Y₃、Y₄Under the state of decorating the yarn:

when V is₁/V₅＝1，V₂/V₁＝V₃/V₁＝V₄/V₁When 1.05-1.15, Y₁、Y₅Are twisted with each other, (Y)₂+Y₃+Y₄) Is twisted on (Y)₁+Y₅) Forming a triplet of binder yarns;

when V is₃/V₄＝1，V₁/V₃＝V₂/V₃＝V₅/V₃When 1.16-1.5, Y₄、Y₅Are twisted with each other, (Y)₂+Y₃+Y₄) Is twisted on (Y)₁+Y₅) Forming a triple core spun yarn;

when V is₃/V₄＝1，V₁/V₃＝V₂/V₃＝V₅/V₃When 1.5-3.5, Y₄、Y₅Are twisted with each other, (Y)₂+Y₃+Y₄) Is twisted on (Y)₁+Y₅) Forming a triple loop yarn;

color aspect:

when V is₁Minimum, and V₂/V₁＝1.05-1.15，V₃/V₁＝1.15-1.35，V₄/V₁＝1.40-2.50， V₅/V₁When the ratio is 2.60-3.50, then Y₁As core yarn, Y₂Wrapped and twisted at Y₁Form Y on₂Corresponding color to Y₁The corresponding color is twisted to form Y₁Covering yarn with corresponding color; y is₃Is twisted on (Y)₁+Y₂) Form Y on₃Knot in the corresponding color Y₄Is twisted in (Y)₁+Y₂+Y₃) Form Y on₄Circle of corresponding color, Y₅Is twisted in (Y)₁+Y₂+Y₃) Form Y on₄The corresponding color circle;

when V is₁Maximum and V₅Minimum, and V₃/V₅＝1.05-1.15，V₂/V₅＝1.15-1.35，V₄/V₅＝1.4-2.5， V₁/V₅When the ratio is 2.5-3.5, then Y₅As core yarn, Y₃Wrapped and twisted at Y₅Form Y on₃Corresponding color to Y₅The corresponding color is twisted to form Y₃Corresponding color of core spun yarn, Y₂Twisted on Y₃+Y₅Form Y on₂Knot in the corresponding color Y₄Is twisted in Y₂+Y₃+Y₅Form Y on₄Corresponding color circle, Y₁Is twisted in Y₂+Y₃+Y₅Form Y on₁A corresponding color big circle;

when V is₃Maximum, and V₄Minimum sum of V₅/V₄＝1.05-1.15，V₁/V₄＝1.15-1.35，V₂/V₄＝1.4-2.5，V₃/V₄When the ratio is 2.5-3.5, then Y₄As core yarn, Y₅Wrapped and twisted at Y₄Form Y on₅Corresponding color to Y₄The corresponding color is twisted to form Y₅Corresponding color of core spun yarn, Y₁Twisted on Y₄+Y₅Form Y on₁Knot in the corresponding color Y₂Is twisted in Y₁+Y₄+Y₅Form Y on₂Corresponding color circle, Y₃Is twisted in Y₁+Y₄+Y₅Form Y on₃A corresponding color big circle;

V₁＝V₂＝V₃<V₄＝V₅when the core yarn is Y₁、Y₂、Y₃The decorative yarn is Y₄、Y₅In the following state:

when V is₃/V₄When 1.05-1.15, Y₁、Y₂、Y₃Form a twist of Y₄、Y₅Are sequentially wrapped and twisted on Y₁、Y₂、Y₃Form Y on₄Corresponding color and Y₅Color-mixed core-spun of the corresponding color;

when V is₃/V₄When 1.16-1.5, Y₁、Y₂、Y₃Form a twist of Y₄、Y₅Sequentially twined and twisted on Y₁、Y₂、Y₃Form Y on₄Knot and Y of corresponding color₅Knots of the corresponding color;

when V is₃/V₄When 1.6-3.5, Y₁、Y₂、Y₃Form a twist of Y₄、Y₅Sequentially twisted on Y₁、Y₂、Y₃Form Y on₄Circle and Y of corresponding color₅Circles of corresponding colors;

when V is₁＝V₂＝V₃>V₄＝V₅When the core yarn is Y₄、Y₅The decorative yarn is Y₁、Y₂、Y₃In the following state:

when V is₃/V₄When 1.05-1.15, Y₄、Y₅Form a twist of Y₁、Y₂、Y₃Are sequentially wrapped and twisted on Y₄、Y₅Form Y on₁Corresponding color, Y₂Is correspondingly provided withColor, Y₃Color-mixed core-spun of the corresponding color;

when V is₃/V₄When 1.16-1.5, Y₄、Y₅Form a twist of Y₁、Y₂、Y₃Sequentially twined and twisted on Y₄、Y₅Form Y on₁Corresponding color, Y₂Corresponding color, Y₃The corresponding color triple knot;

when V is₃/V₄When 1.6-3.5, Y₄、Y₅Form a twist of Y₁、Y₂、Y₃Sequentially twisted on Y₄、Y₅Form Y on₁Corresponding color, Y₂Corresponding color, Y₃The corresponding color is a triple circle.

The multi-channel hollow spindle fancy twisting device designed by the technical scheme is designed to introduce a multi-channel interactive overfeeding mechanism and an interactive twisting structure, the servo motors arranged in all links respectively realize asynchronous control, the efficient obtaining of fancy yarns with structure, form and color change can be accurately realized, two hollow spindles working in opposite directions and in sequence are introduced simultaneously, two layers of fixed yarns twisted in opposite directions are used for twisting the fancy yarns, and the firmness of the yarns can be effectively improved; meanwhile, an interactive asymmetric twisting method based on the device is designed, and through the synergistic effect of matching interactive overfeeding and interactive twisting, the random interchange of the decorative yarn and the core yarn is realized, the random interchange of different twisting modes such as alternate twisting, wrapping twisting, winding twisting, ring twisting and the like is realized, the random interchange of patterns such as cabling, knots, loops, braids and the like is realized, and the structure, the shape, the color and the like of the fancy yarn are changed in a rich and varied mode.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. Multi-channel hollow ingotThe fancy twisting device is used for feeding multiple paths of raw yarns into a twisting zone in an interactive mode at different speeds, and realizing free switching of interactive twisting of multiple raw yarns and free switching of symmetrical twisting and asymmetrical twisting at a twisting point, so that fancy yarns with variable structures, shapes and colors are formed; the method is characterized in that: comprises a PLC controller, a multi-path interactive overfeeding mechanism and an interactive twisting structure, wherein the multi-path interactive overfeeding mechanism comprises a roller shaft (A)₁) A positioning shaft (F), at least one auxiliary shaft, at least one auxiliary gear, at least two rollers, at least two press rollers, at least two jaws and a roller shaft (A) respectively₁) Servo motors with auxiliary shafts in one-to-one correspondence, roller shafts (A)₁) Each auxiliary shaft is respectively connected with a corresponding servo motor;

in the multi-path interactive overfeed mechanism, the number of rollers is equal to the number of auxiliary shafts plus 1, and the number of auxiliary gears is equal to the number of auxiliary shafts; the inner diameter and the outer diameter of each roller are the same, and the inner diameter of each roller is equal to the roller shaft (A)₁) The outer diameters of the two parts are adaptive; each roller is sleeved on a roller shaft (A)₁) And one of the rollers is connected with the roller shaft (A)₁) Are fixedly connected with each other by a key, and the other rollers are respectively connected with a roller shaft (A)₁) The movable sleeves rotate relative to each other, the rollers rotating relative to each other, the auxiliary gears and the auxiliary shafts correspond to each other one by one, the auxiliary gears are respectively and fixedly sleeved on the corresponding auxiliary shafts, the auxiliary gears rotate along with the rotation of the corresponding auxiliary shafts, and straight lines of the auxiliary shafts are all connected with the roller shafts (A)₁) The straight lines are parallel, each auxiliary gear is butted with a corresponding roller through a synchronous toothed belt, and each roller rotating relatively rotates under the transmission of the corresponding auxiliary gear through the synchronous toothed belt;

the number of the jaws and the number of the compression rollers are equal to the number of the rollers, the inner diameter and the outer diameter of each jaw are equal to each other, the inner diameter of each jaw is adapted to the outer diameter of the positioning shaft (F), each jaw is sleeved on the positioning shaft (F), the jaws rotate relative to the positioning shaft (F), the inner diameter and the outer diameter of each compression roller are equal to each other, the inner diameter of each compression roller is adapted to the outer diameter of each jaw, and each compression rollerThe jaws respectively correspond to the compression rollers one by one, and the compression rollers are respectively fixedly sleeved on the outer sides of the corresponding jaws; the straight line of the positioning shaft (F) and the roller shaft (A)₁) The straight lines are parallel, the positions of the press rollers respectively correspond to the positions of the rollers one by one, and a preset gap is kept between the peripheral surface of each roller and the peripheral surface of the press roller at the corresponding position, wherein the gap is smaller than the outer diameter of the original yarn;

the number of the raw yarns participating in twisting is not more than the number of the rollers, the PLC is respectively butted with each servo motor in the multi-path interactive overfeed structure, and the PLC is used for respectively butting the roller shafts (A) through each servo motor₁) And each auxiliary shaft is controlled, each raw yarn is respectively fed into each roller in a one-to-one correspondence manner, and each raw yarn is continuously conveyed by combining the friction force between each roller and the corresponding compression roller to drive the corresponding compression roller to rotate based on the rotation of each roller for feeding the raw yarn;

the interactive twisting structure comprises a guide bar (S) and a driving gear (C)₁) Toothed sliding bar (C)₂) The first hollow ingot (K)₁) A second hollow ingot (K)₂) Ring plate, and a driving gear (C) respectively₁) The first hollow ingot (K)₁) A second hollow ingot (K)₂) Servo motor and driving gear (C) corresponding to ring plate one by one₁) The first hollow ingot (K)₁) A second hollow ingot (K)₂) The ring plates are respectively connected with corresponding servo motors;

in the interactive twisting structure, the number of the positioning guide rods on the guide bar (S) is equal to the number of the rollers plus 1, and the driving gear (C)₁) With insection slide bar (C)₂) The upper insection is butted, the guide bar (S) is fixedly arranged on an insection slide bar (C)₂) On the surface back to the insection, an insection slide bar (C)₂) Driven gear (C)₁) Is rotated and moves back and forth along the straight line where the guide bar (S) is positioned, namely the guide bar (S) follows the insection slide bar (C)₂) Move by the movement of (1); first hollow ingot (K)₁) Downstream of the guide bar (S); second hollow ingot (K)₂) In the first hollow ingot (K)₁) A downstream position of;

the PLC controller is respectively butted with each servo motor in the interactive twisting structure based on PLC controlThe system drives the gear (C) through each servo motor₁) The first hollow ingot (K)₁) A second hollow ingot (K)₂) And the ring plate is controlled, the raw yarns continuously conveyed by the multi-path interactive overfeeding mechanism are respectively fed into gaps between adjacent positioning guide rods on the guide bar (S) in a one-to-one correspondence manner, then the raw yarns passing through the gaps between the adjacent positioning guide rods on the guide bar (S) are sequentially converged at the same point to obtain converged yarns, and then the converged yarns are continuously conveyed to a first hollow spindle (K)₁) First hollow ingot (K)₁) Simultaneously receiving the first fixed yarns and the converged yarns, twisting the first fixed yarns and the converged yarns to wrap the converged yarns by the first fixed yarns, and obtaining a first wrapping combined structure; finally, the first wrapping combined structure is continuously conveyed to a second hollow ingot (K)₂) Second hollow ingot (K)₂) Simultaneously receiving the second fixed yarn and the first wrapping combined structure, twisting to realize wrapping of the first wrapping combined structure by the second fixed yarn, and arranging a first hollow spindle (K)₁) With a second hollow ingot (K)₂) The twisting directions of the yarn twisting device are opposite to each other, namely, the interactive twisting and the switching between the symmetrical twisting and the asymmetrical twisting are realized, and the fancy yarn with the structure, the shape and the color change is obtained.

2. A multi-channel hollow-spindle fancy twisting apparatus as claimed in claim 1, wherein: also comprises a yarn guide hook P₁The fancy thread obtained by the interactive twisting structure passes through the yarn guide hook P₁And then, the steel wire is sent to a winding area.

3. A multi-channel hollow-spindle fancy twisting apparatus as claimed in claim 1, wherein: the PLC is respectively butted with the corresponding servo motors through the servo drivers.

4. A multi-channel hollow-spindle fancy twisting apparatus as claimed in claim 3, wherein: the PLC controller is connected with the corresponding servo motors and the speed reducers in series in sequence through the servo drivers respectively and then is in butt joint with the controlled objects.