CN108221171B - Twisting method, twisting braiding method and twisting device for natural yarn mixing - Google Patents

Abstract

The invention discloses a twisting method of natural mixed yarn, which is characterized in that a second yarn wound in a loop is loosed around at least one first yarn to realize twisting, and the second yarn is twisted into twisted yarn. The invention also discloses a twisting and braiding method of the natural mixed yarn by adopting the method, and a twisting device of the natural mixed yarn adopted in the method, which comprises a rotator-shaped twisting guiding body for supporting the yarn to be twisted after the looper is taken off, wherein a twisting guiding through hole for allowing the other yarn to be twisted to pass through is arranged in the twisting guiding body; one end of the guide twisting body corresponding to the guide twisting through hole is a guide-in end, the other end is a guide-out end, and a movable ring which can enable the yarn to be twisted to be looped to loop around the guide twisting body is arranged on the guide-out end in a ring mode. The invention can obtain twisted yarn with uniform twist, ideal stretching force and elasticity, can reduce the problems of large-scale chromatic aberration and the like formed in the production process of yarn mixing products, can directly and naturally mix yarn and twist yarn on a braiding machine, can reduce the time required by yarn twisting treatment, avoid delay of interlacing and reduce yarn manufacturing cost.

Description

Natural blended yarn twisting method, twisting weaving method and twisting device

Technical Field

The invention relates to textile product production and textile product production equipment, and in particular to a mixed yarn twisting device, method and weaving method.

Background technique

The twisting process is to twist two or more yarns together into one strand. Through the twisting process, a shaped yarn with a certain elasticity, tensile strength and good hand feel can be obtained. When twisting multi-color yarns, a shaped yarn with a gradient blending effect can also be obtained.

The existing twisting machine twists the yarn directly, which makes the yarn easily contaminated with foreign matter such as flying flowers, short lint and dust. The formed yarn will also have defects such as insufficient randomness and color difference due to too uniform color, which will affect the appearance, feel and performance of the textile fabric. Moreover, the formed yarn cannot be used on the knitting machine to weave cloth immediately, but needs to be wound into a bobbin again before it can be used on the knitting machine. This will not only delay the production cycle of the product, but also cost a high twisting fee.

In view of this, the inventor conducted in-depth research on the yarn twisting process, which resulted in the present invention.

Summary of the invention

The purpose of the present invention is to provide a natural mixed yarn twisting method that can directly realize natural mixed yarn twisting on a braiding machine, a natural mixed yarn twisting braiding method, and a natural mixed yarn twisting device that can improve twisting efficiency and quality.

In order to achieve the above object, the present invention adopts the following technical solutions:

The twisting method of natural blending is that the second yarn wound into a loop is twisted around at least one first yarn and twisted into a twisted yarn.

Furthermore, the first yarn and/or the second yarn wound in a loop is wound into a bobbin shape, a coil shape or a ball shape; the first yarn and the second yarn are correspondingly unhooked from the outer circle to the inner circle, or from the inner circle to the outer circle; or the twisting interval between the twisting starts of the first yarn and the second yarn is increased or decreased, and the twisting tightness of the first yarn and the second yarn is correspondingly adjusted.

Furthermore, the first yarn passes through the second yarn along the winding axis direction of the second yarn, and is twisted with the unlooped second yarn to form the twisted yarn.

Furthermore, the first yarn is put on the rubber ring from the first bobbin, and after the first yarn on the rubber ring passes through the bobbin hole in the second bobbin formed by winding the second yarn, the first yarn and the second yarn cast off the second bobbin are twisted into one strand of the twisted yarn;

and/or after the twisted yarn passes through the bore of a third bobbin formed by winding a third yarn, the twisted yarn is twisted with the third yarn unwound from the third bobbin to form a twisted yarn that is twisted again; and/or

Wherein, increasing or decreasing the distance between the first bobbin and the second bobbin correspondingly adjusts the twist tightness of the first yarn and the second yarn; increasing or decreasing the distance between the second bobbin and the third bobbin correspondingly adjusts the twist tightness of the twisted yarn and the third yarn;

Repeat the above twisting process.

Furthermore, the bead undoing direction is the same during the bead undoing process; and/or

The first yarn and/or the second yarn has a twisting direction, and the knock-off direction is the same as the twisting direction.

In the twisting braiding method of natural mixed yarn, the thread pulling mechanism of the braiding machine pulls the second yarn to unloop the first yarn to achieve twisting, and the twisted twisted yarn enters the braiding machine for braiding, achieving twisting and braiding at the same time.

The twisting device for natural mixed yarns comprises a twist guide body that supports the yarn to be twisted after being unhooked, wherein the twist guide body is a rotating body, and a twist guide through hole is arranged in the twist guide body for allowing another yarn to be twisted to pass through; one end of the twist guide body corresponding to the twist guide through hole is an introduction end, and the other end is an outlet end, and a movable ring is arranged on the outlet end to enable the unhooked yarn to be twisted to wrap around the twist guide body and unhook.

Furthermore, from the guide end to the guide end, a main protective ring, a lower protective ring and an upper protective ring are sequentially protruded on the twist guide body; the movable ring is arranged between the lower protective ring and the upper protective ring, and the main protective ring includes a conical surface close to the guide end and a lower inverted conical surface close to the guide end, and the conical surface smoothly transitions to the lower inverted conical surface.

Further, the edge of the twist guide body close to the lead-out end protrudes to form the smooth upper protective ring, and the main protective ring and the movable ring protrude along the circumferential direction to form the smooth lower protective ring; and/or

The maximum inner diameter of the movable ring is smaller than the minimum radial dimension of the upper protective ring and the minimum radial dimension of the lower protective ring; the radial dimension of the main protective ring is the maximum radial dimension of the twist guide body; and/or

The surface of the twist guide body between the lower protective ring and the upper protective ring is recessed to form an upper inverted conical surface, the movable ring is sleeved on the upper inverted conical surface, and there is a gap between the inner surface of the movable ring and the upper inverted conical surface; and/or

The twist guide body forms a block near the guide end, and the block protrudes to form one or more stepped steps.

Furthermore, it also includes a rack, which includes a main support rod and a tray for placing the twist guide body, the tray is arranged on the main support rod, and the tray is provided with a through hole corresponding to the twist guide through hole.

By adopting the above technical scheme, the natural blending yarn twisting method and the natural blending yarn twisting weaving method of the present invention can directly twist the yarn with natural blending on a weaving machine, which can reduce the time required for yarn twisting processing, avoid delivery delays, and reduce yarn making costs.

The natural blending yarn twisting device of the present invention can obtain twisted yarns with uniform twist and relatively ideal tensile strength and elasticity, and can also reduce problems such as large-scale color difference formed in the production process of blending yarn products made of twisted yarns.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of twisting of the present invention;

FIG2 is a structural schematic diagram of a twist guide body and a movable ring according to the present invention;

FIG3 is a second structural schematic diagram of the twist guide body and the movable ring of the present invention;

FIG. 4 is a third structural schematic diagram of the twist guide body and the movable ring of the present invention.

Description of labels:

Twisted yarn 1a Wrapped around axis 2a

First yarn 1 First bobbin 11

Second yarn 2 Second bobbin 21

Third yarn 3 Third bobbin 31

Fourth yarn 4 Fourth bobbin 41

Twisting device 5 Twisting guide body 51

Twist guide hole 511 Block 512

Main guard ring 513 Conical surface 5131

Lower inverted cone 5132 Lower protective ring 514

Upper protective ring 515 Upper inverted cone surface 516

Stairs 517 Activity Circle 52

Shelf 53 Main support bar 531

Pallet support bar 5311 Transverse support bar 5312

Tray 532 Through hole 5321

Detailed ways

In order to further explain the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 4, the twisting method of natural blending yarn of the present invention is mainly realized by the following steps: twisting is achieved by unhooking the yarn wound into a loop, so that two or more yarns are twisted into a twisted yarn 1a, that is, the yarn wound into a loop is unhooked around another yarn to achieve twisting, and twisted into a twisted yarn 1a. The first yarn 1 and the second yarn 2 to be twisted can be the same color yarn, different color yarn, and color-changing yarn, respectively, and can be twisted with one yarn, or two yarns with another yarn, or two yarns with two yarns, and so on, which will not be repeated here.

Embodiment 1

In this case, the twisting method of natural blending is mainly as follows: the second yarn 2 wound in a loop is twisted around at least one first yarn 1 to achieve twisting, and twisted into a twisted yarn 1a. The first yarn 1 and/or the second yarn 2 are wound in a loop to form a bobbin, a coil or a ball.

The following is an example in which the first yarn 1 is wound into a hollow cone-shaped first bobbin 11, and the second yarn 2 is wound into a hollow cone-shaped second bobbin 21, wherein a bobbin hole is formed in the first bobbin 11 and the second bobbin 21. Of course, if multiple yarns such as the third yarn 3 and the fourth yarn 4 are used, the third yarn 3 and the fourth yarn 4 are also wound into a third bobbin 31 and a fourth bobbin 41. The twist guide bodies 51 placed on the first bobbin 11, the second bobbin 21, the third bobbin 31, the fourth bobbin 41, etc. correspond to the first twist guide body 51, the second twist guide body 51, the second twist guide body 51, the fourth twist guide body 51, etc.

When the yarn is unhooked, the first yarn 1 and the second yarn 2 are unhooked from the outer ring to the inner ring of the first bobbin 11 and the second bobbin 21, respectively, so that the first bobbin 11 and the second bobbin 21 become thinner and thinner from the outside to the inside. Of course, the first yarn 1 and the second yarn 2 can also be unhooked from the inner ring to the outer ring of the first bobbin 11 and the second bobbin 21, respectively, so that the first bobbin 11 and the second bobbin 21 become thinner and thinner from the inside to the outside.

This embodiment realizes natural mixed yarn twisting through the following steps: the first yarn 1 passes through the barrel hole in the second bobbin 21 along the winding axis 2a of the second yarn 2, that is, the axial direction of the second bobbin 21, and is twisted with the second yarn 2 unhooked from the second bobbin 21 to form a twisted yarn 1a.

The above twisting process can be repeated as needed. For example, after the above twisted yarn 1a passes through the bore of the third bobbin 31 wound by the third yarn 3, the twisted yarn 1a is twisted with the third yarn 3 unwound on the third bobbin 31 to form a strand of twisted twisted yarn 1a that is twisted again. After the above twisted twisted yarn 1a passes through the bore of the fourth bobbin 41 wound by the fourth yarn 4, the above twisted twisted yarn 1a is twisted with the fourth yarn 4 unwound on the fourth bobbin 41 to form a strand of twisted twisted yarn 1a that is twisted multiple times. By analogy, any number of superimposed twisting can be completed by repeating the above twisting process.

Preferably, the twisting interval between the twisting start of the first yarn 1 and the second yarn 2 is increased or decreased, and the twisting tightness of the first yarn 1 and the second yarn 2 is adjusted accordingly. When the first yarn 1 moves forward to the upper part of the second twist guide body 51 after being unhooked from the first bobbin 11, and the second yarn 2 moves forward to the upper part of the second twist guide body 51 after being unhooked from the second bobbin 21, the longer the twisting interval between the second yarn 2 and the twisting start of the first yarn 1, the looser the twisting degree of the first yarn 1 and the second yarn 2. On the contrary, the first yarn 1 and the second yarn 2 are twisted more and more tightly. The twisting interval between the twisting start of the twisting refers to the position where the first yarn 1 and the second yarn 2 initially contact to the position where the first yarn 1 and the second yarn 2 initially contact the third yarn 3.

Preferably, the direction of the unhooking is the same during the unhooking process, and when the first yarn 1 and/or the second yarn 2 have a twisting direction, that is, the first yarn 1 and the second yarn 2 are not monofilaments but twisted yarns, the unhooking direction is also the same as the twisting direction of the first yarn 1 and the second yarn 2. In this way, the twisting direction of the twisted twisted yarn 1a after twisting can be the same as the twisting direction of the first yarn 1 and the second yarn 2, so that the twisted yarn 1a is tightly twisted and not easy to loosen, thereby obtaining better performance.

Embodiment 2

In this case, the twisting method of natural blended yarn mentioned above can realize the following twisting weaving method of natural blended yarn.

The thread pulling mechanism of the braiding machine pulls the first yarn 1 and the second yarn 2 to be twisted to be unhooked and moved forward, and the second yarn 2 is unhooked around the first yarn 1. During the unhooking process, the first yarn 1 and the second yarn 2 pulled forward are twisted, and the twisted twisted yarn 1a is pulled by the thread pulling mechanism and enters the braiding machine for braiding, thus realizing twisting and braiding at the same time. The braiding machine and thread pulling mechanism can adopt existing structures, which will not be repeated here.

Embodiment 3

In this case, the above methods can all use a twisting device 5 for natural yarn mixing, hereinafter referred to as the twisting device 5. The twisting device 5 mainly includes a twisting guide body 51 and a movable ring 52. The twisting guide body 51 and the movable ring 52 can make multiple yarns naturally unwind and start winding and twisting, and finally achieve twisting. In addition, it can also include a rack 53 for placing bobbins. The twisting guide here refers to pulling and guiding the yarn to be twisted during the twisting process to guide the yarn to be twisted.

The twist guide body 51 can support the yarn to be twisted after the yarn is unhooked. The twist guide body 51 is a rotating body with a twist guide through hole 511 inside. One end of the twist guide body 51 corresponding to the twist guide through hole 511 is the introduction end, and the other end is the outlet end. The introduction end is the lower end of the twist guide body 51, and the outlet end is the upper end of the twist guide body 51. From the introduction end to the outlet end, the twist guide body 51 is sequentially protruded to form a block 512, a main protective ring 513, a lower protective ring 514 and an upper protective ring 515. The block 512 is located on the introduction end, and the main protective ring 513 includes a conical surface 5131 close to the outlet end, and a lower inverted conical surface 5132 close to the introduction end. The connection between the conical surface 5131 and the lower inverted conical surface 5132 is smoothly transitioned.

The movable ring 52 is a circular ring with a smooth surface and a smooth transition. The movable ring 52 is set between the lower protective ring 514 and the upper protective ring 515, and can move up and down between the lower protective ring 514 and the upper protective ring 515. When twisting, the yarn to be twisted passes through the movable ring 52 and is unhooked around the outer circumference of the twist guide body 51.

The edge of the twist guide body 51 close to the lead-out end protrudes to form a smooth upper protective ring 515 . The minimum radial dimension of the upper protective ring 515 is greater than the maximum inner diameter of the movable ring 52 . The radial dimension of the main protective ring 513 is the maximum radial dimension of the twist guide body 51 .

A smooth lower protective ring 514 is formed by a protrusion along the circumferential direction between the main protective ring 513 and the movable ring 52 . The minimum radial dimension of the lower protective ring 514 is greater than the maximum inner diameter dimension of the movable ring 52 .

The outer surface of the twist guide body 51 between the lower protective ring 514 and the upper protective ring 515 is concave inward to form an upper inverted cone surface 516, and the movable ring 52 is sleeved on the upper inverted cone surface 516, and there is a gap between the inner surface of the movable ring 52 and the upper inverted cone surface 516. During the twisting process, the yarn to be twisted passes through the gap, and the movable ring 52 can move up and down on the upper inverted cone surface 516 with the yarn to be twisted. Preferably, as shown in Figure 4, the cross-section of the concave outer surface of the twist guide body 51 here is arc-shaped, which can provide a more ideal activity space for the yarn to be twisted, so that the yarn to be twisted can pass through this place smoothly, and can also effectively deal with the tension of the yarn to be twisted and mixed impurities.

The upper protective ring 515 and the lower protective ring 514 are mainly used to limit the range of movement of the movable ring 52. The lower protective ring 514 can prevent the movable ring 52 from falling downward from the upper inverted cone surface 516, and the upper protective ring 515 can prevent the movable ring 52 from being pulled out of the upper inverted cone surface 516 by the to-be-twisted yarn. At the same time, the upper protective ring 515 and the lower protective ring 514 can also adjust the tension of the to-be-twisted yarn being pulled, remove impurities on the to-be-twisted yarn, and support the to-be-twisted yarn during the twisting and pulling process.

The upper part of the twist guide body 51 corresponding to the block 512 is protruded to form a step 517, the upper end of the block 512 is located in the middle of the step 517, the outer diameter of the block 512 is not greater than the minimum inner diameter of the barrel hole in the bobbin, so that the block 512 can be inserted into the barrel hole in the bobbin. The radial dimension of the step 517 is greater than the minimum inner diameter of the barrel hole in the bobbin, so that the upper end of the bobbin can be supported on the step 517.

Preferably, the step 517 includes at least two steps arranged up and down, and each step is in a step-like shape that gradually widens from bottom to top, that is, the radial size of each step gradually increases from bottom to top.

The rack 53 includes a main support rod 531 and a tray 532. The main support rod 531 is vertically arranged, and the main support rod 531 has no less than two tray support rods 5311 extending horizontally. The tray support rods 5311 are arranged one by one up and down, and the trays 532 are fixed on the tray support rods 5311. For the convenience of description, the trays 532 placed from bottom to top as shown in FIG. 1 correspond to the first tray 532, the second tray 532, the third tray 532, the fourth tray 532, and so on.

Each tray 532 is provided with through holes 5321 at the corresponding locations where the bobbins are placed. These through holes 5321 can be respectively arranged corresponding to the barrel holes of the first bobbin 11, the second bobbin 21, the third bobbin 31, and the fourth bobbin 41 on each tray 532. Moreover, these through holes 5321 can also be arranged corresponding to the twist guide through holes 511 on the twist guide body 51 placed in the above barrel holes. When twisting, the first yarn 1 passes through the through holes 5321 and the barrel holes in the second bobbin 21, and then is intertwined with the second yarn 2 for twisting.

Preferably, during twisting, the twisting tightness of the twisted yarn 1a can be adjusted accordingly by increasing or decreasing the intervals between the plurality of trays 532, that is, the distances between the first bobbin 11, the second bobbin 21, the third bobbin 31, the fourth bobbin 41, etc.

The main support rod 531 is also extended with a transverse support rod 5312, which is arranged at 90 degrees with the tray support rod 5311. The main support rod 531 is also provided with a hole slot connected to the braiding machine bracket. The transverse support rod 5312 and the main support rod 531 are both fixedly arranged on the braiding machine bracket, so as to prevent the rack 53 from shaking left and right. The rack 53 is fixedly arranged on the braiding machine bracket through the hole slot and the cooperation of the bolt and nut.

Embodiment 4

In this embodiment, the twisting method of natural blended yarn is further described in detail, and the specific steps are as follows:

When the yarn is twisted, under the traction of the thread pulling mechanism of the braiding machine, the first bobbin 11 and the second bobbin 21 are first placed in the first and second trays 532 on the rack 53 in sequence, so that the through holes 5321 correspond to the barrel holes on the first bobbin 11 and the second bobbin 21. Then, the clamping blocks 512 of the first and second twist guide bodies 51 are respectively placed in the barrel holes of the first bobbin 11 and the second bobbin 21, so that the upper end surfaces of the first bobbin 11 and the second bobbin 21 are respectively supported on the steps 517.

The first yarn 1 is then pulled upward as follows: after the first yarn 1 passes around the main protective ring 513 on the first twist guide body 51, it passes through the gap between the inner surface of the movable ring 52 and the upper inverted cone surface 516; after passing around the upper protective ring 515, the first yarn 1 passes through the through hole 5321 on the second tray 532, the barrel hole of the second bobbin 21, and the twist guide through hole 511 on the second twist guide body 51 on the second bobbin 21 in sequence.

Similarly, the second yarn 2 is also pulled onto the twist guide body 51 on the second bobbin 21 as above: after the second yarn 2 passes around the main protective ring 513 on the second twist guide body 51, it passes through the gap between the inner surface of the movable ring 52 and the upper inverted cone surface 516, and then passes around the upper protective ring 515. At the upper part of the second twist guide body 51, the thread ends of the first yarn 1 and the second yarn 2 are combined into a twisted yarn 1a. If the twisted yarn 1a does not need to be twisted again, it can enter the braiding machine for corresponding knitting, warp knitting, flying weaving, shuttle weaving, horizontal knitting and other weaving.

When the first yarn 1 or the second yarn 2 is pulled upward, the size of the first bobbin 11 or the second bobbin 21 changes at any time as the first yarn 1 or the second yarn 2 is unwound. The lower inverted conical surface 5132 of the main protective ring 513 makes the first yarn 1 or the second yarn 2 have an inclination when it moves upward, which can prevent the first yarn 1 or the second yarn 2 from getting stuck or stuck, resulting in yarn breakage. In addition, because the yarn to be twisted has the transition of the main protective ring 513 during the pulling process of the thread pulling mechanism, the twist of the twisted yarn 1a twisted by the first yarn 1 or the second yarn 2 is more uniform. When the first yarn 1 or the second yarn 2 is pulled between the movable ring 52 and the upper inverted conical surface 516 by the thread pulling mechanism, the first yarn 1 or the second yarn 2 cannot expand or spread outward due to the obstruction of the movable ring 52, and can only be unwound in the movable ring 52, further promoting the twist of the twisted yarn 1a to be more uniform. When the first yarn 1 or the second yarn 2 is pulled to the upper protective ring 515 by the thread pulling mechanism, the upper protective ring 515 can not only prevent the movable ring 52 from being carried away by the first yarn 1 or the second yarn 2, but also drive the first yarn 1 or the second yarn 2 to expand slightly outward, which can again make the twist of the twisted yarn 1a more uniform. The setting of the upper inverted cone surface 516 can prevent the movable ring 52 from being stuck when being driven by the first yarn 1 or the second yarn 2, thereby causing the first yarn 1 or the second yarn 2 to break.

The twisting method of natural mixed yarn can obtain twisted yarn 1a with uniform twist by using twisting device 5, and the twisted yarn 1a maintains relatively ideal tensile strength and elasticity, and at the same time can reduce the problems such as large-scale color difference formed in the production process of mixed yarn products.

Under the action of the thread pulling mechanism, the first yarn 1 and the second yarn 2 are detached from the first bobbin 11 and the second bobbin 21 in a circle, and after detachment, the first yarn 1 and the second yarn 2 still remain in a curled state under the action of the bending force. The first yarn 1 and the second yarn 2 contact and rub against each other on the upper part of the second bobbin 21, and the first yarn 1 and the second yarn 2 that remain in a curled state are naturally twisted and twisted into one strand, forming a twisted yarn 1a. The twisted twisted yarn 1a is still pulled by the thread pulling mechanism of the knitting machine and enters the inside of the knitting machine to be woven into yarn.

The yarn in the present invention can adopt the same method according to production requirements, accumulating the number of times the yarn is twisted to improve the twisting quality and obtain twisted yarn 1a with multiple twists and multi-color twists.

By adopting the above technical scheme, the natural blending yarn twisting method of the present invention can directly twist the yarn naturally on a knitting machine, which can reduce the time required for the yarn twisting process, avoid delivery delays, and reduce the cost of yarn making.

It should be noted that this embodiment is the best solution of the present invention. If the first yarn 1 is not wound into a bobbin, a ball or a ball, and the first yarn 1 does not pass through the first twist guide body 51, the first yarn 1 can still contact and rub with the second yarn 2, and the second yarn 2 in a curled state can still be naturally twisted with the first yarn 1 to form a twisted yarn 1a.

The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made thereto by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims (10)

1. A twisting device for natural mixed yarn, characterized in that: it includes a twist guide body that supports the yarn to be twisted after being unhooked, the twist guide body is a rotating body, and a twist guide through hole is provided in the twist guide body for allowing another yarn to be twisted to pass through; one end of the twist guide body corresponding to the twist guide through hole is an inlet end, and the other end is an outlet end, and a movable ring is provided on the outlet end to enable the unhooked yarn to be twisted to wrap around the twist guide body and unhook. 2. The twisting device for natural blended yarn according to claim 1 is characterized in that: from the guide end to the outlet end, a main protective ring, a lower protective ring and an upper protective ring are sequentially protruded on the twist guide body; the movable ring is arranged between the lower protective ring and the upper protective ring, and the main protective ring includes a conical surface close to the outlet end and a lower inverted conical surface close to the guide end, and the conical surface smoothly transitions to the lower inverted conical surface. 3. The twisting device for natural blended yarn according to claim 2, characterized in that: the edge of the twist guide body close to the lead-out end protrudes to form a smooth upper protective ring, and the main protective ring and the movable ring protrude along the circumferential direction to form a smooth lower protective ring; and/or The maximum inner diameter of the movable ring is smaller than the minimum radial dimension of the upper protective ring and the minimum radial dimension of the lower protective ring; the radial dimension of the main protective ring is the maximum radial dimension of the twist guide body; and/or The surface of the twist guide body between the lower protective ring and the upper protective ring is recessed to form an upper inverted conical surface, the movable ring is sleeved on the upper inverted conical surface, and there is a gap between the inner surface of the movable ring and the upper inverted conical surface; and/or The twist guide body forms a block near the guide end, and the block protrudes to form one or more stepped steps. 4. The natural blending yarn twisting device according to claim 3 is characterized in that it also includes a frame, the frame includes a main support rod and a tray for placing the twist guide body, the tray is arranged on the main support rod, and the tray has a through hole corresponding to the twist guide through hole. 5. A twisting method for natural blended yarns, characterized in that: twisting is performed using a twisting device as described in any one of claims 1 to 4, and the second yarn wound into a loop is twisted around at least one first yarn to achieve twisting and twisting into a twisted yarn. 6. The twisting method of natural blended yarn according to claim 5 is characterized in that: the first yarn and/or the second yarn wound in a loop is wound into a tube shape, a coil shape or a ball shape; the first yarn and the second yarn are correspondingly unhooked from the outer circle to the inner circle, or from the inner circle to the outer circle; or the twisting spacing between the twisting starts of the first yarn and the second yarn is increased or decreased, and the twisting tightness of the first yarn and the second yarn is correspondingly adjusted. 7. The twisting method of natural blended yarn according to claim 5 is characterized in that: the first yarn passes through the second yarn along the winding axis direction of the second yarn, and is twisted with the unlooped second yarn to form the twisted yarn. 8. The twisting method of natural blended yarn according to claim 5, characterized in that: the first yarn is put on the rubber ring from the first bobbin, and after the first yarn on the rubber ring passes through the bobbin hole in the second bobbin formed by the second yarn, the first yarn and the second yarn cast off the second bobbin are twisted into one strand of the twisted yarn; and/or after the twisted yarn passes through the bore of a third bobbin formed by winding a third yarn, the twisted yarn is twisted with the third yarn unwound from the third bobbin to form a twisted yarn that is twisted again; and/or Wherein, increasing or decreasing the distance between the first bobbin and the second bobbin correspondingly adjusts the twist tightness of the first yarn and the second yarn; increasing or decreasing the distance between the second bobbin and the third bobbin correspondingly adjusts the twist tightness of the twisted yarn and the third yarn; Repeat the above twisting process. 9. The twisting method of natural blended yarn according to claim 6 or 8, characterized in that: the directions of the knocking-off are the same during the knocking-off process; and/or The first yarn and/or the second yarn has a twisting direction, and the knock-off direction is the same as the twisting direction. 10. A twisting braiding method for natural mixed yarns, characterized in that: twisting is performed using the twisting device as described in any one of claims 1 to 4, the thread pulling mechanism of the braiding machine pulls the second yarn around the first yarn to achieve twisting, and the twisted twisted yarn enters the braiding machine for braiding, thereby achieving twisting and braiding at the same time.