阅读说明：本技术 一种打结方法及打结部件 (Knotting method and knotting component ) 是由 吕汉明 于 2020-06-02 设计创作，主要内容包括：本发明涉及为纱、线等打结的技术,具体为一种打结方法及打结部件,采用打结管给纱束打结,所述打结管为具有通孔的管状部件,打结管通孔的一端开口、另一端能连接至吸气装置,通过转动打结管将需要打结的纱束在打结管上缠绕至少一圈,用打结管的开口端将沿打结管长度方向排列距离开口端最远的纱束吸入,将缠绕在打结管上的纱束由打结管的开口端退下,打结管吸入的纱束穿过了纱束在打结管上绕成的圈,便将纱束打了一个结；与现有技术相比,本发明打结方法及打结部件结构更简单,工作更可靠,特别适用于需要打结的纱、线及绳比较柔软的情况,可以将其用于编绞纱过程中分绞纱打结,应用所述打结方法及打结部件便于实现绞纱分绞的自动化。(The invention relates to a knotting technology for yarns, threads and the like, in particular to a knotting method and a knotting component, wherein a knotting pipe is adopted for knotting yarn bundles, the knotting pipe is a tubular component with a through hole, one end of the through hole of the knotting pipe is opened, the other end of the through hole of the knotting pipe can be connected to an air suction device, the yarn bundles to be knotted are wound on the knotting pipe for at least one circle by rotating the knotting pipe, the yarn bundles which are arranged along the length direction of the knotting pipe and farthest away from the open end are sucked by the open end of the knotting pipe, the yarn bundles wound on the knotting pipe are withdrawn from the open end of the knotting pipe, the yarn bundles sucked by the knotting pipe penetrate through the yarn bundles and are wound on the knotting pipe into a circle, and then the yarn bundles are knotted; compared with the prior art, the knotting method and the knotting part have simpler structure and more reliable work, are particularly suitable for the condition that yarns, threads and ropes needing to be knotted are softer, can be used for knotting the skein in the skein weaving process, and are convenient to realize the automation of skein leasing by applying the knotting method and the knotting part.)

1. A knotting method for knotting relatively soft filaments, tows, yarns, bundles of yarns, threads, bundles of wires, ropes or ropes, which, for convenience, the yarn bundle is called as the knotted object in the following, the yarn bundle is soft, which means that the yarn bundle can be sucked into a tube by an air suction tube, the knotting pipe is an elbow-shaped part with a through hole, one end of the knotting pipe is an open end, the other end of the knotting pipe is a rotating shaft end, one end of the through hole of the knotting pipe is open at the open end of the knotting pipe, the other end of the through hole of the knotting pipe can be connected to the air suction device, the rotating shaft end drives the knotting pipe to rotate to wind the yarn bundle on the knotting pipe for at least one circle, the yarn bundle which is arranged along the length direction of the knotting pipe and is farthest away from the open end of the knotting pipe is sucked by the through hole opening at the open end of the knotting pipe, and the yarn bundle wound on the knotting pipe is withdrawn from the open end of the knotting pipe, so that the yarn bundle is knotted.

2. The method of claim 1 wherein the knotting tube segment corresponding to the open end of the knotting tube initially contacts the yarn bundle and the knotting tube segment corresponding to the open end of the knotting tube rotates along a flat or tapered surface.

3. The method of claim 1 wherein the knotting tube is rotated such that the open end of the knotting tube is at a maximum radius of rotation.

4. A knotting method according to claim 1, wherein the position of the yarn bundle contacting the knotting tube is limited by a limiting member which limits the position of the yarn bundle.

5. The knotting method of claim 1, wherein a rod-shaped yarn stopper is provided at a corner of the knotting tube corresponding to the bend, the knotting tube and the yarn stopper are trifurcated, and the position of the position limiting member before and after the position where the yarn bundle contacts the knotting tube is located on the same side of the surface where the yarn stopper is rotated.

6. A knotting part, characterized in that it adopts the knotting method of claim 1 to knot a yarn bundle, comprising at least one knotting tube, wherein the knotting tube is an elbow-shaped part with a through hole, one end of the knotting tube is an open end, the other end is a rotating shaft end, one end of the through hole of the knotting tube is open at the open end of the knotting tube, and the other end can be connected to an air suction device.

7. The knotting apparatus of claim 6, wherein the knotting tube has yarn stops at locations corresponding to the corners, the yarn stops being rod-shaped members that form a three-pronged shape with the knotting tube.

8. The knotting apparatus of claim 6, wherein the knotting apparatus is adapted to rotate the knotting tube about the knotting tube at the end of the shaft, wherein the knotting tube is adapted to rotate at least one turn of the yarn bundle wound around the knotting tube during rotation of the knotting tube, and wherein the yarn bundle wound around the knotting tube is drawn into the knotting tube through the open end of the knotting tube, and wherein the yarn bundle is withdrawn from the knotting tube through the open end of the knotting tube to form a knot.

9. The knotting apparatus of claim 6, wherein the withdrawal of the yarn bundle wound around the knotting tube from the open end of the knotting tube is achieved by moving the yarn bundle or moving the knotting tube to pull the yarn bundle wound around the knotting tube from the open end of the knotting tube or pushing the yarn bundle wound around the knotting tube to push it from the open end of the knotting tube.

10. The knotting apparatus of claim 6, wherein the yarn bundle wound around the knotting tube is pushed down from the open end of the knotting tube and the yarn bundle wound around the knotting tube is pushed down from the open end of the knotting tube by the looper withdrawing member which moves along the length of the knotting tube and withdraws the yarn bundle wound around the knotting tube while moving toward the open end of the knotting tube, the looper withdrawing member having a structure to completely cover the yarn bundle wound around the knotting tube in the radial direction of the through hole in the knotting tube.

Technical Field

The invention relates to a knotting technology for yarns, threads and the like, in particular to a knotting method and a knotting component, wherein a knotting pipe is adopted for knotting yarn bundles, the knotting pipe is a tubular component with a through hole, one end of the through hole of the knotting pipe is opened, the other end of the through hole of the knotting pipe can be connected to an air suction device, the yarn bundles to be knotted are wound on the knotting pipe for at least one circle by rotating the knotting pipe, the yarn bundles which are arranged along the length direction of the knotting pipe and farthest away from the open end are sucked by the open end of the knotting pipe, the yarn bundles wound on the knotting pipe are withdrawn from the open end of the knotting pipe, the yarn bundles sucked by the knotting pipe penetrate through the yarn bundles and are wound on the knotting pipe into a circle, and then the yarn bundles are knotted; compared with the prior art, the knotting method and the knotting part have simpler structure and more reliable work, are particularly suitable for the condition that yarns, threads and ropes needing to be knotted are softer, can be used for knotting the skein in the skein weaving process, and are convenient to realize the automation of skein leasing by applying the knotting method and the knotting part.

Background

In many fields, it is often necessary to tie a knot at the end of a relatively soft bundle of yarn, threads or ropes to prevent them from unraveling, the simplest knot being a single knot, and for the sake of descriptive convenience, the yarns, bundles of yarns, threads, bundles of threads, ropes or ropes, etc., which are to be tied in a knot, will be referred to hereinafter in the specification as yarn bundles. For example, in the textile industry, after a skein is sketched, leasing (or referred to as braiding) is required to be performed to keep the skein orderly in the subsequent treatment process, the leasing or braiding of the skein in the textile industry at home and abroad adopts a manual mode, and when the skein is manually leased (braided), an operator uses the leasing (possibly one thicker yarn, possibly a plurality of yarns, possibly a rope and the like, collectively referred to as leasing) to bundle, twist and wind the skein and combine the ends of the leasing together to form a single section. The efficiency of manual leasing is lower, operating personnel are tired, actions are repeated, and hand and neck occupational diseases are easy to obtain.

An invention patent application with the application number of 200610141308.3, namely an automatic knotter, is used for knotting knotted yarns into single bowknots, and has a complex structure, wherein the patent application with the application number of 201820014475.X, the patent application with the application number of 201710557933.4, the automatic knotting mechanism, the patent application with the application number of 201811271355.9, the patent application with the application number of 201810846004.X, the patent application with the application number of 201810846004, the patent application of 'an automatic knotter for green Chinese onions', and the like all disclose automatic knotting devices or structures, and the patent applications basically adopt chucks to clamp the tail ends of yarns to wind and knot, the requirements on the path and the position of the yarn are high, and the adaptability to the yarn bundles with different lengths or tightness is not good enough in the process of pulling the tail of the yarn bundle to form a knot, the loose section of the yarn bundle can cause untightening of the knot and the technical solutions in these patent applications are complicated.

In view of the above problems, the invention discloses a knotting method and a knotting part, which have simpler structures and more reliable work, are particularly suitable for the condition that yarns, threads and ropes needing to be knotted are softer, can be used for knotting two ends of hank yarns in the hank yarn weaving process, and are convenient for realizing the automation of hank yarn lease by applying the knotting method and the knotting part.

Disclosure of Invention

To overcome the defects in the prior art, the invention provides a knotting method and a knotting component, and the technical scheme is as follows:

a knotting method is used for knotting soft yarns, tows, yarns, yarn bundles, threads, wire bundles, ropes or rope bundles and the like, for convenience, the yarns, the tows, the yarns, the yarn bundles, the threads, the wire bundles, the ropes or the rope bundles and the like are collectively called as yarn bundles, the yarn bundles are soft, namely the yarn bundles can be sucked into a pipe by an air suction pipe, the knotting method is characterized in that the yarn bundles are knotted by a knotting pipe, the knotting pipe is an elbow-shaped component with a through hole, one end of the knotting pipe is an open end, the other end of the knotting pipe is a rotating shaft end, one end of the through hole of the knotting pipe is opened at the open end of the knotting pipe, the other end of the through hole can be connected to an air suction device, the rotating shaft end drives the knotting pipe to rotate, the yarn bundles to be knotted are wound on the knotting pipe for at least one circle, the yarn bundles which are arranged farthest from the open end of the knotting pipe in the length direction of the knotting pipe are sucked by the through hole opening of the through hole of the knotting pipe, the yarn bundle sucked by the knotting pipe passes through a loop formed by winding the yarn bundle on the knotting pipe, so that the yarn bundle is knotted into a knot; when the knotting pipe rotates, the opening end of the knotting pipe is positioned at the position with the maximum rotating radius; the knotting pipe section corresponding to the opening end of the knotting pipe is firstly contacted with the yarn bundle, and a plane or conical surface is formed when the knotting pipe section corresponding to the opening end of the knotting pipe rotates; a rod-shaped yarn stop is arranged at the corner of the knotting pipe corresponding to the elbow and faces to the direction opposite to or approximately opposite to the opening end of the knotting pipe, and the knotting pipe and the yarn stop are in a three-fork shape; the front and the back of the position where the yarn bundle contacts the knotting pipe are provided with limiting parts for limiting the position of the yarn bundle, and the two limiting parts are respectively positioned at two sides of a plane or a conical surface formed by the rotation of the knotting pipe, namely the two limiting parts are contacted with the yarn bundle between the two limiting parts in the rotation process of the knotting pipe; the two limiting parts are positioned on the same side of the yarn stop rotation forming surface, namely the yarn stop can not touch the yarn bundle between the two limiting parts in the rotation process.

A knotting component is characterized in that the knotting method is adopted for knotting yarn bundles, and the knotting component at least comprises a section of knotting pipe, wherein the knotting pipe is an elbow-shaped component with a through hole, one end of the knotting pipe is an open end, the other end of the knotting pipe is a rotating shaft end, one end of the through hole of the knotting pipe is opened at the open end of the knotting pipe, the other end of the through hole of the knotting pipe can be connected to an air suction device, a yarn stopper is arranged at a position, corresponding to a turning position, of the knotting pipe, the yarn stopper is a section of rod-shaped component, and the yarn stopper and the pipe form a knotting three-fork shape; the connection to the air suction device can be realized by a common method such as a rotatable joint or a spiral spring tube;

when the knotting component is applied, the knotting pipe rotates by taking the knotting pipe at the rotating shaft end as an axis, the yarn bundle is wound on the knotting pipe for at least one circle in the rotating process of the knotting pipe, the yarn bundle far away from the open end of the knotting pipe is sucked into the knotting pipe through the through hole opening at the open end of the knotting pipe, then the yarn bundle wound on the knotting pipe is withdrawn from the open end of the knotting pipe to form a knot, and the knot is sucked into the knotting pipe by the knotting pipe and is tensioned by means of air suction;

the yarn bundle wound on the knotting pipe is pulled down from the opening end of the knotting pipe by moving the yarn bundle or the knotting pipe, or the yarn bundle wound on the knotting pipe is pushed down from the opening end of the knotting pipe by pushing the yarn bundle; the yarn bundle winding on the knotting pipe is pushed down from the opening end of the knotting pipe, the yarn bundle winding on the knotting pipe is pushed to be withdrawn from the opening end of the knotting pipe by the loop withdrawing part, the loop withdrawing part moves along the length direction of the knotting pipe and can withdraw the yarn bundle winding on the knotting pipe in the moving process towards the opening end of the knotting pipe, and the loop withdrawing part has a structure which completely covers the yarn bundle winding on the knotting pipe in the radial direction of the through hole in the knotting pipe.

Drawings

Fig. 1 is a schematic view of a knotting method and a knotting element according to embodiment 1 of the present invention.

Fig. 2 is a front view schematically illustrating a knotting method and a knotting element according to embodiment 2 of the present invention.

FIG. 3 is a top view of a knotting method and knotting component of embodiment 2 of the invention.

Fig. 4 is a front view schematically illustrating a knotting method and a knotting element in accordance with embodiment 2 of the present invention.

Fig. 5 is a top view of a knotting method and knotting component of example 2 of the invention, schematically illustrated in fig. 2.

FIG. 6 is a schematic view of a knotting method and knotting element of embodiment 3 of the present invention.

Fig. 7 is a front view schematically illustrating a knotting method and a knotting element according to embodiment 4 of the present invention.

FIG. 8 is a top view of a knotting method and knotting element of embodiment 4 of the invention.

FIG. 9 is a front view of FIG. 1 illustrating a knotting method and knotting element of example 5 of the present invention.

FIG. 10 is a front view of FIG. 2 illustrating a knotting method and knotting element of example 5 of the present invention.

Fig. 11 is a front view schematically illustrating a knotting method and a knotting element according to embodiment 6 of the present invention.

FIG. 12 is a front view of FIG. 2 showing a knotting method and knotting element of example 6 of the present invention.

FIG. 13 is a schematic view of a knotting method and knotting element of embodiment 7 of the invention.

FIG. 14 is a front view of a knotting method and knotting element in accordance with embodiment 8 of the present invention.

FIG. 15 is a top view of a knotting method and knotting element of embodiment 8 of the invention.

In the figure: 1. knotting pipe 10, rotating shaft 11, guide groove 12, yarn stopper 13, side air inlet 2, tail limiting part 3, middle limiting part 4, yarn pushing part 5, air suction pipe 9 and yarn bundle

Detailed Description

The following description of the embodiments of a knotting method and knotting apparatus according to the present invention is given by way of illustration only, and should not be construed to limit the claims, which are not intended to limit the present invention.

Example 1 of a knotting method and knotted part of the present invention (shown in fig. 1):

the knotting pipe 1 is a round pipe, the left side of the knotting pipe 1 is an opening end, the right end of the knotting pipe 1 is connected to an inlet of the fan through a connecting pipe, when the negative pressure fan is started, the left opening of the knotting pipe 1 generates suction,

after the yarn bundle 9 is wound on the knotting tube for one circle, the open end of the knotting tube 1 is relatively close to the upper part of the yarn bundle 9 in the drawing, so that the open end of the knotting tube 1 sucks the upper part of the yarn bundle 9 into the knotting tube 1, the yarn bundle 9 wound on the knotting tube 1 is withdrawn leftwards from the open end of the knotting tube, and the yarn bundle 9 forms a single knot. The single knot formed by the yarn bundle 9 wound around the knotting pipe 1 and retreated from the knotting pipe to the left is also sucked by the knotting pipe 9, and the formed single knot can be appropriately tightened by the air flow in the knotting pipe 1.

And then, pulling out the yarn bundle and the knotted knot from the knotting pipe through the relative motion between the knotting pipe and the yarn bundle, or blowing air in the opposite direction of the air suction direction, blowing the yarn bundle sucked into the knotting pipe out of the knotting pipe, completing a knotting cycle, and continuously knotting again because no yarn bundle exists on the knotting pipe.

The yarn bundle 9 is wound on the knotting pipe for a circle, the knotting pipe is rotated by taking the radial direction of the right end of the knotting pipe as an axis to drive the yarn bundle to rotate, at this time, a shaft for supporting the knotting pipe to rotate needs to be added at the right end of the knotting pipe, the shaft and the straight knotting pipe form the knotting pipe in an elbow shape, and the yarn bundle 9 can be wound on the knotting pipe in a mode that the yarn bundle rotates around the knotting pipe.

The knotting tube 1 can be moved by moving the open end of the knotting tube 1 relatively close to the upper portion of the yarn bundle 9 in the drawing, or by moving the upper portion of the yarn bundle 9, or both.

The knotting tube 1 can be moved rightwards by withdrawing the yarn bundle 9 wound on the knotting tube 1 leftwards from the open end of the knotting tube, or the yarn bundle 9 can be pulled leftwards or both simultaneously.

All movements can be performed manually or by means of a drive member.

Example 2 of a knotting method and knotted parts of the invention (as shown in figures 2-5):

in the embodiment, an L-shaped round tube is adopted as the knotting tube, the left side end of the horizontal section of the knotting tube 1 in fig. 2 and 4 is open and is the open end, the vertical section of the knotting tube 1 in fig. 2 and 4 is used as the rotating shaft 10, the upper end of the knotting tube 1 is connected to the inlet of a blower (certainly, other negative pressure generating components such as a vacuum generator and the like are not eliminated) through an air pipe, when the negative pressure blower is started, the left side opening of the knotting tube 1 generates negative pressure suction,

the knotting tube is arranged on a guiding and limiting component with the freedom of rotation around a rotating shaft 10 through the rotating shaft 10, and is driven to rotate around the rotating shaft 10 by a driving component, so that a section of knotting tube (the knotting tube at the left and right horizontal sections in figures 2 and 4) corresponding to the opening end of the knotting tube rotates in a plane, a yarn bundle is driven to rotate around the knotting tube continuously for one circle after contacting the yarn bundle in the rotation process of the knotting tube, the yarn bundle is wound on the knotting tube for one circle, the position of the knotting tube 1 and the position of the yarn bundle 9 before the knotting tube starts to rotate is shown in figure 3, the knotting tube 1 in figure 3 is contacted with the yarn bundle 9 after rotating anticlockwise and pushes the yarn bundle to rotate together with the knotting tube and to be wound on the knotting tube 1, the yarn bundle is wound on the knotting tube for one circle as shown in figures 4 and 5 after rotating for one circle, the driving component drives the knotting tube 1 and the yarn bundle to move relatively between the yarn bundle, so that the opening end of the knotting tube and the yarn bundle farther away from the opening end of the knotting tube (the yarn bundle upwards in figure 4, and the yarn bundle section located at the top layer in fig. 5) is close to and sucks the yarn bundle section into the open end of the knotting pipe 1, the yarn bundle 9 wound on the knotting pipe 1 is pushed to be withdrawn from the open end of the knotting pipe, the sucked yarn bundle end of the knotting pipe penetrates through a loop formed by winding the yarn bundle on the knotting pipe, the yarn bundle forms a knot, the yarn bundle sucked in the knotting pipe and the knot are pulled out by moving the knotting pipe, and one-time knotting is finished, although the yarn bundle is not removed to pull out the yarn bundle knot from the knotting pipe.

When the open end of the knotting pipe 1 sucks the end of the yarn bundle into the knotting pipe, the yarn bundle farther away from the open end is sucked, and the yarn bundle finally encountered when the yarn bundle is searched from the open end of the knotting pipe along the length direction of the knotting pipe toward the other end of the knotting pipe, for example, in fig. 4, the yarn bundle is wound by one turn on the knotting pipe, the yarn bundle section located below the knotting pipe in fig. 4 is firstly encountered when the yarn bundle is searched from the open end of the knotting pipe along the length direction of the knotting pipe, and the yarn bundle wound on the rotating shaft 10 in fig. 4 is continuously searched after passing through the yarn bundle section.

If the knotter tube 1 is rotated several turns after it has contacted the yarn bundle, the yarn bundle 9 is wound several turns around the knotter tube, in which case the knot formed is a double knot. Although only one yarn bundle is shown in the embodiment, it is not excluded to tie a plurality of yarn bundles which are not combined together, as long as the knotting pipe can wind the plurality of yarn bundles on the knotting pipe and suck all the yarn bundles from the opening end during the rotation process.

Example 3 of a knotting method and knotted part of the present invention (shown in fig. 6):

this example differs from example 2 of a knotting method and knotting element of the present invention in that: in order to improve the condition that a yarn bundle is not easy to fall off from the open end of the knotting pipe after being wound on the knotting pipe, the knotting pipe 1 in the embodiment comprises a horizontal section straight pipe, a vertical section straight pipe and a circular arc section pipe which is connected with the horizontal section straight pipe and the vertical section straight pipe, wherein the left end of the horizontal section is the open end, and the vertical section straight pipe is used as a rotating shaft 10, so that the yarn bundle is wound on the vertical section (the rotating shaft 10) of the knotting pipe and is easy to fall off from the open end of the knotting pipe.

Meanwhile, the knotted yarn bundle is generally held or positioned to keep the end part at a controllable fixed position, in this embodiment, the end of the knotted yarn bundle 9 is held and limited by the tail limiting part 2, the tail limiting part 2 may be a clip, a porcelain eye, a yarn guide hook, a suction nozzle or other parts capable of limiting the position of the yarn bundle, the middle limiting part 3 (generally, a part capable of limiting the position such as a porcelain eye, a yarn guide hook or the like) limits the direction of the yarn bundle, the knotting tube 1 knottes the yarn bundle between the tail limiting part 2 and the middle limiting part 3, when the knotting tube 1 rotates around the shaft 10, the horizontal section of the knotting tube 1 contacts with the yarn bundle between the tail limiting part 2 and the middle limiting part 3 and drives the yarn bundle to be wound on the knotting tube, then, the open end of the knotting tube 1 sucks the yarn bundle between the knotting tube and the tail limiting part 2, and the horizontal section of the knotting tube 1 rotates to form a plane, the yarn bundle sucked by the knotting tube is located on the same side of the plane formed by the rotation of the knotting tube as the rotating shaft 10.

When the yarn bundle wound on the knotting pipe is withdrawn from the knotting pipe, for example, the knotting pipe in fig. 6 can withdraw the yarn bundle wound on the knotting pipe only by manually moving the knotting pipe after rotating for one circle or horizontally moving the knotting pipe right by driving the knotting pipe by the driving part, of course, the knotting pipe can move the tail limiting part 2 and (or) the middle limiting part 3 left without moving the knotting pipe, even the yarn bundle is beaten through the knotting pipe at the position shown in fig. 6 and swings counterclockwise by taking the top of the rotating shaft 10 as a center, and only the yarn bundle wound on the knotting pipe can be pulled down by the movement.

Example 4 of a knotting method and knotted parts according to the invention (see fig. 7 and 8):

the difference between this embodiment and embodiment 3 is that the yarn bundle wound on the knotting tube needs to be withdrawn from the knotting tube after being wound on the knotting tube and sucking the free end of the yarn bundle into the knotting tube, and the moving knotting tube or the moving yarn bundle used to withdraw the wound yarn bundle from the knotting tube in the previous embodiment pulls down the yarn bundle wound on the knotting tube from the knotting tube:

the yarn bundle wound on the knotting pipe 1 is pushed down by the knotting pipe 1 by the yarn pushing component 4, the outer side of the knotting pipe 1 is provided with guide grooves 11 distributed along the length direction of the knotting pipe, the yarn pushing component 4 is an annular component sleeved on the outer side of the knotting pipe, a bulge pointing to the circle center is arranged on the inner side of the yarn pushing component, the bulge is positioned in the guide grooves 11 and can slide along the length direction of the guide grooves 11 on the knotting pipe 1, after the yarn bundle is wound on the knotting pipe, the yarn pushing component 4 is pushed to move towards the opening end of the knotting pipe 1 along the length direction of the knotting pipe, and the yarn pushing component 4 pushes down the yarn bundle wound on the knotting pipe. In order to ensure that the yarn pushing member can push down the yarn bundle wound on the knotting tube, the yarn pushing member 4 is in an initial position before the knotting tube starts to rotate to wind the yarn bundle on the knotting tube, and the position of the yarn bundle wound on the knotting tube is ensured to be positioned between the yarn pushing member and the open end of the knotting tube.

Although the shape and structure of the yarn pushing member 4 are described in the present embodiment, the yarn pushing member is not limited to the annular enclosing structure in the present embodiment, and may be in the form of a semi-enclosing structure, a rod-like structure, or the like, which is easily conceivable, as long as the yarn bundle wound around the knotting pipe can be pushed down from the open end of the knotting pipe during the movement along the knotting pipe, and the driving may be performed manually, or an element and mechanism may be performed using an air cylinder, a motor, a screw nut, or the like.

The yarn bundle wound on the knotting pipe forms a yarn bundle ring, and no matter which yarn pushing component is adopted, the size of the yarn pushing component in the radial direction of the yarn bundle ring is larger than that of the yarn bundle ring, so that the yarn pushing component can be guaranteed to push the yarn bundle ring to move along the knotting pipe.

Example 5 of a knotting method and knotted part according to the present invention (shown in fig. 9 and 10):

in embodiments 2 to 3 of a knotting method and a knotting component according to the present invention, when a yarn bundle is wound around a knotting pipe, a part of the yarn bundle is wound around a rotating shaft 10 of the knotting pipe, and it is relatively difficult to automatically withdraw the yarn bundle wound around the rotating shaft 10 of the knotting pipe from the knotting pipe, for example, as shown in fig. 6, it is relatively easy to automatically withdraw the yarn bundle wound around a horizontal section of the knotting pipe in fig. 6 from an opening end of the knotting pipe, and relatively difficult to withdraw the yarn bundle wound around the rotating shaft 10 (upper and lower vertical sections of the knotting pipe) of the knotting pipe, in order to solve the problem, the present embodiment is different from embodiment 3 of a knotting method and a knotting component according to the present invention in that:

in the knotting tube 1 of the embodiment, a yarn stopper 12 is added on the basis of embodiment 3, as shown in fig. 9 and 10, the yarn stopper 12 is a rod-shaped member facing to a direction approximately opposite to the open end of the knotting tube at the connecting position of the horizontal section and the vertical section of the knotting tube, the horizontal section and the vertical section (the rotating shaft 10) of the knotting tube and the yarn stopper are in a three-fork shape, when the knotting tube is driven by the rotating shaft 10 to rotate, the horizontal section and the vertical section (the rotating shaft 10) of the knotting tube rotate simultaneously with the yarn stopper, the tail limiting member 2 and the middle limiting member 3 are positioned at the same side of the rotation forming surface of the yarn stopper, namely, the yarn stopper cannot hit the yarn bundle between the two limiting members in the rotation process, and the plane formed by the horizontal section of the knotting tube is positioned between the tail limiting member 2 and the middle limiting member 3, so that in the rotation process of the knotting tube, the flat section of the knotting tube can contact the yarn bundle and push the yarn bundle to be wound on the knotting tube, and the yarn stopper 12 prevents the yarn bundle from winding on the section of the rotating shaft 10, so that the yarn bundle can only be wound on the horizontal section of the knotting pipe, and the yarn bundle wound on the knotting pipe is favorably withdrawn from the knotting pipe.

The knotting pipe is connected to a fan inlet or a negative pressure generator and other components capable of generating suction through the section of the rotating shaft 10, but no hole or hole in the rotating shaft 10 is or is not communicated with the horizontal section of the knotting pipe, the yarn stop is made into a through hole communicated with the through hole in the horizontal section of the knotting pipe, and the yarn stop is connected to the fan inlet through the opening end at the upper right corner of the yarn stop in the drawing 9.

Example 6 of a knotting method and knotted part according to the present invention (shown in fig. 11 and 12):

in the embodiment, the knotting tube 1 is composed of a conical tube with a certain taper and a solid rotating shaft 10, the open end with the smaller diameter of the conical tube is used as the open end of the knotting tube 1, the open end with the larger diameter of the conical tube can be connected to an air suction device, the rotating shaft 10 is connected with the knotting tube 1 into a whole, a yarn stop 12 in the embodiment 5 which is equivalent to the knotting method and the knotting component of the invention is changed into the conical tube, the rotating shaft 10 rotates around the axis of the rotating shaft to drive the knotting tube to rotate, the conical tube rotates to form two conical surfaces similar to the shape of an hourglass, the conical surface formed by the rotation of a section of the conical tube which is thinner and positioned at one side of the rotating shaft 10 is positioned between the tail limiting component 2 and the middle limiting component 3, the tail limiting part 2 and the middle limiting part 3 are positioned at the same side of the conical surface formed by the rotation of the thicker section of conical tube, therefore, the section of the conical tube corresponding to the thicker end of the knotting tube 1 can play a role of yarn stop.

The knotting tube is connected to the equipment that induced drafts through pivot 10 in the preceding embodiment, pivot 10 not only is as the pivot, still plays the effect of intercommunication induced draft simultaneously, after the pipe that knots is rotatory a week twines the yarn bundle on the conical tube in this embodiment, the pipe stop rotation that knots, the pipe that knots moves to the right side in the position department of figure 11, make the open end of knotting tube aim at the yarn bundle that needs the suction on the one hand, on the other hand make the thick one end of conical tube dock with the aspiration channel 5 that is connected to the fan entry, the fan begins to induced draft just can inhale the yarn bundle that tail stop part 2 gripped in the pipe that knots.

When yarn bundles sucked by the knotting pipe and knots are sent out from the knotting pipe, the knotting pipe rotates a certain angle in the direction opposite to the rotating direction when the yarn bundles are wound on the knotting pipe, so that the opening end with the larger diameter of the conical pipe of the knotting pipe is connected with the outlet of the fan, and the yarn bundles sucked in the knotting pipe can be blown out from the opening end with the smaller diameter of the conical pipe by blowing of the fan. Certainly, the suction pipe 5 is not connected to the tee joint, and the suction is controlled by a valve when the yarn bundle needs to be sucked, and the air is blown when the sucked yarn bundle needs to be blown out.

Example 7 of a knotting method and knotted parts of the present invention (shown in fig. 13):

the present example differs from the knotted tube of example 3 of a knotting method and knotting element of the present invention in that: the open end of the knotting pipe is bigger than the included angle of the rotating shaft 10, and the rotating shaft 10 is not parallel to the knotted yarn bundle 9, so that the knotting pipe rotates to wind the yarn bundle 9 on the knotting pipe, the yarn bundle can not be wound on the section of the knotting pipe corresponding to the rotating shaft 10 basically, the yarn bundle wound on the knotting pipe is easy to fall off from the open end of the knotting pipe, the section of the knotting pipe corresponding to the open end is designed to be conical, the open end of the knotting pipe is thinner, and the knotting pipe is easier to fall off from the open end.

The open ends of the knotting pipes in the previous embodiments are both pipes with open end faces, that is, the openings of the through holes of the knotting pipes at the open ends of the knotting pipes are all opened at the end parts of the open ends, in this embodiment, the end parts of the open ends of the knotting pipes are closed, the through holes in the knotting pipes are opened at the side faces of the open ends, that is, the side air ports 13 (in fig. 13, the open ends of the knotting pipes face upward), the knotting pipes suck the yarn bundles by the side air ports 13 when sucking the yarn bundles, and the side air ports 13 are positioned near the position where the yarn bundles are limited by the tail limiting component 2, so that the yarn bundles loosened by the tail limiting component 2 can be directly sucked without horizontal movement after the knotting pipes rotate for one circle.

The knotting pipe is connected to the one end of the air suction device and is connected with the air blowing device simultaneously, when the knotting pipe needs to suck the yarn bundle into the knotting pipe, the air suction device plays a role, after knotting, the yarn bundle sucked into the knotting pipe and the knotted knot are moved out of the knotting pipe, the air blowing device plays a role, the yarn bundle sucked into the knotting pipe and the knotted knot are blown out, the structure capable of blowing and sucking is easy to achieve, for example, the rotating shaft end of the knotting pipe can be controlled by a valve to be connected to the outlet and the inlet of a fan respectively.

Example 8 of a knotting method and knotted part according to the invention (see fig. 14 and 15):

before the knotting pipe 1 rotates, the yarn bundle 9 is pulled to partially wrap the knotting pipe 1 by the left-right translation, so that the yarn bundle can be wound on the knotting pipe 1 when the knotting pipe 1 rotates again, in this case, the yarn bundle can be wound on the knotting pipe for one circle only by rotating 180 degrees when the knotting pipe rotates, and the yarn bundle cannot be wound on the knotting pipe for more circles even if the knotting pipe continues to rotate, therefore, after the knotting pipe rotates 180 degrees, the open end of the knotting pipe can be aligned to the yarn bundle needing to be sucked by rotating, moving the knotting pipe or the yarn bundle, and the yarn bundle is sucked into the knotting pipe from the open end.