CN111519288A

CN111519288A - Twisting device and twisting machine using same

Info

Publication number: CN111519288A
Application number: CN201910109110.4A
Authority: CN
Inventors: 王宝定
Original assignee: Shaoxing Yifang Machinery Manufacturing Co ltd
Current assignee: Shaoxing Yifang Machinery Manufacturing Co ltd
Priority date: 2019-02-03
Filing date: 2019-02-03
Publication date: 2020-08-11

Abstract

A twisting device comprises a twister and a bracket. The twister comprises a rotary twister and a yarn winding device, wherein the multi-strand yarn fed into the twister is twisted by the rotary twister and then wound on the yarn winding device due to the difference of coaxial and homodromous rotating speeds between the rotary twister and the yarn winding device, the multi-strand yarn wound on the yarn winding device is folded back to the rotary twister again, then rotates together with the rotary twister again, is bent, and is output from the twister. Compared with the traditional two-for-one twister and the traditional ring spinning frame, the twisting machine using the twisting device can finish the two procedures of doubling and twisting of the two-for-one twister or the two procedures of spinning and spooling of the ring spinning frame in one twisting machine, thereby greatly saving the field, equipment, power consumption and manpower required by the traditional two-for-one twister and the traditional ring spinning frame.

Description

Twisting device and twisting machine using same

Technical Field

The invention belongs to the field of textile equipment, and particularly relates to a Twisting device (English is 'Twisting device') and a Twisting machine (Twisting machine) using the Twisting device.

Background

The textile industry typically requires twisting of single-strand yarns prior to weaving with yarns, twisting (twining) being the process of winding two or more single-strand yarns for twisting into a yarn. Broadly speaking, any process in which a sliver (strand, yarn, thread, filament) is twisted or axially wrapped about its axis to obtain a "twist" or wrap of the sliver is referred to as "twisting". The twisting can make the fibers or the monofilaments cohere and intertwined with each other without loosening or slipping, and has certain physical and mechanical properties (such as strength, elongation, elasticity and the like) and appearance characteristics (such as luster, hairiness, hand feeling and the like). At present, the main twisting equipment mainly comprises a two-for-one twister and a ring spinning frame. The name of the two-for-one twister is derived from that a spindle (English is called "spindle") twisting device can realize the twisting effect of one-for-two twisting for the fed parallel multi-strand, besides the spindle twisting device, the two-for-one twister also comprises a winding device which actively draws, collects and winds the multi-strand twisted and output by the spindle twisting device into a multi-strand bobbin, the winding device usually comprises a Roller which continuously rotates (English is called "Roller", Chinese is interpreted as "Roller") or comprises a pair of rollers which are tightly attached and rotate oppositely, and the rollers are usually called "winding rollers" in the textile industry. The ring spinning frame adopts a spindle twisting device which is different from a two-for-one twister and can only realize the twisting effect of one-rotation and one-twist, and the spindle twisting device of the ring spinning frame, which comprises a spindle for driving a quill to rotate continuously, a steel wire ring for drawing raw material roving to rotate continuously and twist and a rotating track steel collar of the steel wire ring, is used for twisting the raw material roving into spun yarn and winding the spun yarn into cop, and then a plurality of cops are connected on a winder to form the final product cheese.

As shown in the drawing (a) of fig. 1, the conventional twisting process performed by the two-for-one twister is divided into two processes of "doubling" and "twisting", wherein the left side of a right arrow in the drawing (a) of fig. 1 shows the process of "doubling" and the right side of the arrow shows the process of "twisting". As shown in the drawing by the "doubling" process on the left side of the arrow, doubling is to merge the single threads 2 from the different single bobbins 1 into parallel multi-thread strands 3 and wind them into parallel multi-thread bobbins 4. The principle is very simple, all the single wires 2 only need to pass through a common channel and then are directly wound into parallel multi-strand bobbins 4, and the parallel multi-strand bobbins 4 produced after doubling are used as raw materials of the next twisting process. As shown in the twisting process on the right side of the arrow in the drawing (a) of fig. 1, the parallel multi-strand 3 on the parallel multi-strand bobbin 4 is fed into the spindle twisting device of the two-for-one twister for rotary twisting to generate the twisted multi-strand 5, the twisted multi-strand 5 with the added "twist" is drawn out from the spindle twisting device by the winding roller 12 and then wound into the twisted multi-strand bobbin 6 to complete the twisting process, the parts indicated by the reference numeral 7, the lead wires thereof and the arrow in the drawing (a) of fig. 1 are the "spindle" and the spindle twisting device of the spindle of the two-for-one twister, and the solid arrow in black arc indicates that the spindle 7 will rotate ceaselessly during the twisting process. In addition, the drawing (A) of figure 1 shows, with reference 13, a traversing thread guide forming a bobbin of regular shape, the arrows in the two winding rollers 12 of the winding device in the (first) sub-drawing of figure 1 indicate the direction of rotation of the two winding rollers in rotation towards each other, in fact, the two winding rollers 12 are the power source for unwinding the whole multi-strand from the parallel multi-strand bobbin 4 and finally drawing the whole multi-strand to the winding device, and in reality, a roller which continuously rotates is often directly used as the winding device to draw out the multi-strand in the spindle twisting device of the two-for-one twisting machine and wind the multi-strand on the bobbin tightly sleeved on the roller, and then the multi-strand is often firstly passed through a line concentration ring 14 as shown in fig. 2 between the traverse guide device 13 and the spindle twisting device, and the line concentration ring 14 is often called as a "guide hook" in reality. The double arrow next to the traversing guide 13 in the (first) drawing of figure 1 indicates that the traversing guide 13 draws the twisted strands back and forth along the axis of the twisted multi-strand bobbin 6 in a regular movement back and forth. In fact, the doubling process on the left side of the drawing (a) of fig. 1 is also provided with the winding device and the traverse guide device, and is omitted for the sake of brevity. Fig. 2 shows the principle of the spindle twisting device of the two-for-one twister applying a rotary twisting to the parallel strands 3. As shown in fig. 2, the parallel multi-strand bobbin 4 is inserted into a hollow spindle 7 of a hollow spindle 701 of a spindle device, the hollow spindle 7 is communicated with an opening at the bottom center of the hollow spindle 701, the hollow spindle 701 is sleeved on a twisting disc 8 below the hollow spindle 701 through the opening at the bottom center of the hollow spindle 701, the parallel multi-strand 3 unwound from the parallel multi-strand bobbin 4 firstly enters the inside of the hollow spindle 7 from the top, then downwards and then bends to enter a horizontal transverse channel 802 inside the twisting disc 8, wherein the so-called "transverse channel" means that an included angle exists between the transverse channel 802 and the inner channel of the hollow spindle 7, and the included angle is a right angle of 90 degrees as shown in fig. 2; as shown in fig. 2, the center of the lower part of the bottom of the twisting disk 8 is provided with a coaxial transmission shaft 803 which is fastened with the twisting disk 8, the twisting disk 8 is mounted on the twisting disk bracket 11 and can freely rotate around the self axial lead, the transmission shaft 803 is attached to a transmission belt 10 (also called a "tangential belt") and is driven by friction transmission (the lowest black solid straight arrow in fig. 2 is the moving direction of the tangential belt) of the transmission belt 10 to rotate so as to drive the twisting disk 8 to continuously rotate (as shown by black solid arc arrows at both sides of the twisting disk 8 in fig. 2), and the rotation axial lead of the twisting disk 8 and the axial lead of the internal channel of the hollow enlarged spindle 7 are generally in the same straight direction, as shown by a vertical chain line in the upper right region of fig. 2; as shown in fig. 2, the strands exiting from the transverse channel 802 inside the twisting disk 8 are pulled upward by the winding device, represented by a pair of winding rollers 12, above the spindle twisting device (as indicated by the single-line arrow at the top in fig. 2), and the traversing thread guiding device 13 and the twisting multi-strand bobbin 6 forming the regular-profile bobbin shown in the (first) drawing of fig. 1 are omitted for the sake of saving space in fig. 2. As shown in fig. 2 and referring to fig. 1 (a), due to the traction of the winding device represented by a winding roller 12 above the spindle twisting device to the multi-strand, the multi-strand has an axial tension everywhere, and because the transverse channel 802 in the twisting disc 8 is not in the same straight direction as the internal channel of the hollow spindle 7, the multi-strand will be bent when being bent from the inside of the hollow spindle 7 from top to bottom into the transverse channel in the twisting disc 8 and will be tightly attached to the bend 801 in the twisting disc 8, and due to the resultant force of the axial tension of the multi-strand on both sides of the bend 801, the bend 801 position of the twisting disc will exert a corresponding reaction force on the multi-strand, which is equivalent to the bend 801 will generate a radial clamping force on the multi-strand. At the same time, as the twisting disk 8 is continuously rotated around the axial lead of the internal channel of the hollow spindle 7 and the axial lead of the twisting disk 8 under the driving of the lower driving belt 10, the rotation of the twisting disk 8 can twist the multi-strand wires unwound from the parallel multi-strand bobbin 4 to generate a twist, and in fact, the twisting process is equivalent to pinching the multi-strand wires at the bend 801 with fingers and rotating the multi-strand wires around the axial direction of the multi-strand wires to form the twist; as shown in fig. 2, the twisted yarn passes around the position of the bend 801 and then enters the transverse passage 802 of the twisting disk 8, so that the twisted yarn is twisted from the position of the bend 801 to the position before the winding device represented by the pair of winding rollers 12 with the rotation of the twisting disk 8, thereby realizing the function of "one turn and two twist". In order to distinguish the strands twisted before and after the position of the bend 801, the strands twisted before the position of the bend 801 are marked with reference numeral 501 in fig. 2, and are named as "front twisted strands" in the present specification, while the strands twisted again after the position of the bend 801 are marked with reference numeral 502, and are named as "rear twisted strands" in the present specification. As shown in fig. 2, the rear twisted multi-strand wires 502 (a part of the rear twisted multi-strand wires 502 in fig. 2 is schematically shown by a chain double-dashed line without a spiral pattern, and a single-line arc arrow in the chain double-dashed line indicates that the rear twisted multi-strand wires 502 are pulled upward while rotating) output from the transverse channel 802 of the twisting disk 8 will rotate around the rotating axial line of the twisting disk 8 (i.e., the axial line of the hollow spindle 7), so as to generate a circling body called as an "air ring" between the transverse channel 802 of the twisting disk 8 and the line collecting ring 14 before the winding device, which is shown by a hollow single-line arc arrow in the middle, and the air ring 9 surrounds the whole parallel multi-strand bobbin 4 and the container hollow spindle 701 thereof around the rotating axial line of the twisting disk 8. The drawing (c) of fig. 1 shows the twisting principle of the spindle twisting device of the aforementioned two-for-one twisting machine in a concise and abstract form, and both the drawing (c) and drawing (d) and drawing (e) are indicated by a hollow thread and a solid thick thread to form two yarns of a multi-ply yarn. As shown in the drawing (c) of fig. 1, after being unwound from the bobbin indicated by the leader line with reference number 4, one strand of multi-strand is bent to generate a radial clamping force to the multi-strand and is pulled to the winding device indicated by the leader line with reference number 12, and as the bending position of the multi-strand rotates, two twisted multi-strand segments of front twisted multi-strand 501 and rear twisted multi-strand are generated, the dotted ellipse and the arrow on the dotted ellipse and the hollow arc arrow in the figure indicate the rotating track of the bending position of the stranded wire, comparing the twisting effect of the multiple strands on the left and right sides of a horizontal arrow in the drawing (C), it can be seen that the twisting directions of the multiple strands before and after the bending 801 are consistent, so that one rotation of the bending 801 can apply two turns to the multiple strands unwound from the bobbin and drawn to the winding device. Referring to fig. 2, since the back twisted multi-strand 502 rotates to generate the aforementioned balloon 9 in reality, the reference numeral 9 is attached to the back of the reference numeral 502 in the (c) diagram to show the balloon formed in reality.

The twisting principle of the conventional ring spinning frame is shown in the drawing (B) of FIG. 1. In the "spun yarn" step of twisting the roving in the ring spinning frame shown on the left side of the right horizontal arrow in the figure to produce a spun yarn, the roving 3 'is unwound from the roving bobbin 4' by the traction of the winding roller 12, and is drawn by the traveler 15 to rotate continuously along the ring 16, thereby twisting the roving between the traveler 15 and the winding roller 12 to produce a spun yarn 5', and the spun yarn 5' is wound on the quill 17 while being drawn by the traveler 15 to rotate to form a cop, and the quill 17 is also called a "bobbin". Then, the spun yarn wound on a plurality of fine cop yarns is connected together and wound into a thick and big bobbin yarn 6' of the final finished spun yarn through a winding process shown on the right side of a right horizontal arrow in a drawing (B). The spooling process is provided because the more yarn wound on the rotating quill 17, the more power consumption required to drive the quill 17 to rotate, and the more uniformity of the twist applied to the yarn 5'. Note that the multi-strand wires fed from the winding roller 12 to the bead ring 15 are bent at the bead ring 15, and the multi-strand wires are subjected to a radial clamping force at the bent portion of the bead ring 15 by the self-rotation winding pulling force of the quill 17, which is the same as the radial clamping force at the bent portion 801 of the multi-strand wires in the aforementioned two-for-one twister. The principle of the rotary twisting of the ring spinning frame is equivalent to that the roving yarn at the bead ring 15 is pinched by fingers and rotates around the multi-strand yarn clamping output port of the winding roller 12, so that the roving yarn output from the winding roller 12 can be twisted to form spun yarn by applying twists, and the number of the twists applied to the roving yarn per unit time is related to the rotating speed of the bead ring and the output speed of the roving yarn of the winding roller 12. The (t) drawing and (c) drawing of fig. 1 show the twisting principle of ring spinning with two rolls of single-strand bobbin 1 as raw material, wherein there are two arc-shaped arrows in the (t) drawing, one arc-shaped arrow below indicates the rotating direction of the traveler 15 along the ring 16, one arc-shaped arrow above indicates the winding rotating direction of the quill 17, it can be seen from the (t) drawing that the multi-strand is actually clamped by the traveler 15 and pulled to rotate around the clamping output port of the winding roller 12, so that the twisting operation is performed to form the twisted multi-strand 5, and the twisted multi-strand 5 is then wound and collected on the quill 17, note that the twisting principle of the roving is substantially identical to that of the multi-strand in the (t) drawing. As shown in the (penta) diagram, the principle of ring spinning twisting is actually equivalent to pinching the upper ends of the strands with a winding device represented by a pair of winding rollers 12, the lower ends of the strands being wound on the bobbin of the cop and the cop being twisted by continuous rotation around the multi-strand gripping output of the winding device, meanwhile, the bobbin of the cop also rotates to wind the twisted multi-strand yarn on the cop, the cop indicated by the reference numbers '15 and 17' and the lead thereof in the (penta) drawing indicates that the cop represents the action of the steel wire ring 15 and the cop 17 in the (D) drawing, the dotted oval and the arrow above it and the curved arrow in the figure indicate the direction of rotation of the package, the reference numeral 16 in the figure indicates the rotation trajectory of the cop, i.e. the rotation trajectory of the ring 16 guiding the traveler 15 in the (t) diagram. For example, the original source of the ring spinning technology and the defects of the ring spinning technology are taught by a document named as "mechanical analysis of twisting mechanism of ring spinning and research on semi-compact spinning technology" in Shanghai Ma technology of No. 3 in 2010, and actually, the principle schematic diagram of the spindle twisting device is shown by removing the "false twister" in FIG. 8 of the document; in the ' electronic manufacturing ' of 2013, 7X ' stage, the ' ring spinning ring and traveller ' on page 215, the ' text introduces in detail the ring spinning ring and traveller's use of the spindle twisting device; in 2016 (11/43 th volume, 6 th period of textile equipment), named as "cause of defects in ring spinning and discussion of process control", the text teaches the defects and causes of finished spun yarn products which are easy to occur in the ring spinning process; in the document named as cause and control of hairiness of ring spun yarn in the textile equipment of reel 40 at 3 rd stage of 2013, 5 th month, when analyzing the cause of hairiness defect in the whole ring spinning process flow, a whole set of ring spinning process flow including ' blowing- > carding- > combing- > drawing and combining- > roving- > spinning- > winding is introduced, note that the ' sliver ' in the ' sliver flattened state output by the front roller ' in section 1.2 of the document is also called ' sliver ' in the textile industry, namely ' roving ', actually figure 1 of the document also marks the ' sliver ' as ' sliver ' by lead wire, and note that figure 1 of the document actually shows the principle of spindle twisting device used by the traditional ring spinning frame, and when the steel wire ring continuously rotates on the steel collar, the yarn pulling sliver continuously rotates around the bobbin, forming an enlarged conical balloon up to the guide hook in the figure and down to the ring in the figure; in 2014, the difference and the relation of various spinning modes in the textile and clothing science and technology of the 1 st phase, a whole set of ring spinning process flow including the spun yarn and the subsequent spooling process is described in the ring spinning content part; the development and prospect of cotton spinning roller drafting at volume 43 and phase 6 of 2016, 11, mainly introduces the development and the revolution of a roller drafting System (English name is 'Rollerdrafting System') in which a ring spinning frame continuously rolls raw material roving to generate strands and conveys the strands to a spindle twisting device. The twisting principle of the ring spinning frame is actually suitable for twisting not only roving slivers but also parallel multi-strand yarns consisting of a plurality of yarns as described above.

The two-for-one twister and the ring spinning frame described above are both really ingenious as shown in fig. 1, but the defects are also obvious, that is, both of them need two different processes, as mentioned above, the two-for-one twister needs two processes of doubling and twisting, as mentioned above, the twisting of multiple strands is carried out by using one-turn single-twist principle of the ring spinning frame, as shown in (b) diagram and (d) diagram of fig. 1, spinning and spooling processes are needed, different processes mean different fields and different production equipment, and power is respectively provided for the equipment in two places, if the final twisted multiple strands of bobbins can be directly generated from single-strand yarns in one step or one-time completion from roving to final finished bobbin yarn can be realized, half of fields and power can be saved, and the economic benefit and energy saving brought are not small.

Disclosure of Invention

In order to solve the defects of the traditional twisting equipment comprising the two-for-one twister and the ring spinning frame pointed out in the background technology section, the twisting device and the twisting machine using the twisting device provided by the invention can combine two working procedures required by the traditional two-for-one twister and the ring spinning frame into a whole, and directly produce finished multi-strand bobbins or cone yarns from single strands or rovings of raw materials at one time, thereby greatly saving the field occupation, the power consumption and the labor cost of two production processes of multi-strand twisting or roving twisting.

Specifically, the twisting device provided by the invention can be used for twisting a plurality of strands fed into the twisting device and then outputting the twisted strands like a traditional twisting device, and comprises a twister for twisting the plurality of strands and a bracket for mounting the twister. Different from the twisting devices in the traditional two-for-one twister and the ring spinning frame, the twister of the twisting device provided by the invention comprises a rotary twister which can bend and rotate the multiple strands fed into the twisting device so as to twist the multiple strands, and the twister also comprises a yarn winder which can wind the multiple strands fed into the twisting device after being twisted by the rotary twister; the yarn winder can rotate continuously, the rotating yarn winder is coincident with the rotating axis of the rotating twister, the rotating directions of the rotating twister and the rotating axis of the rotating twister are consistent, but the rotating angular speeds of the rotating twister and the rotating twister are different, so that the yarn winder can pull out and wind the stranded yarn from the rotating twister on the yarn winder or the rotating twister can pull out and wind the stranded yarn on the yarn winder. Specifically, for the present invention, when the rotation speed of the yarn winder is greater than the rotation speed of the rotary twister, the yarn winder is used as a source for pulling the stranded wires to pull and wind the stranded wires from the rotary twister on the body of the yarn winder, and when the rotation speed of the rotary twister is greater than the rotation speed of the yarn winder, the rotary twister is used as a source for winding the stranded wires on the yarn winder. In the present invention, the twisted yarn wound around the yarn winding device is unwound from the yarn winding device and folded back to the rotary twister, and the twisted yarn folded back to the rotary twister is rotated together with the rotary twister and is output after being bent at least once.

Referring to fig. 1 and fig. 2 in combination with the above description, in the present invention, the rotary twister actually performs a twisting operation of one-to-one twisting on the fed multi-strand according to the twisting principle of the ring spinning frame, because the rotary twister bends and rotates the fed multi-strand as in the ring spinning frame, the bending of the multi-strand in the rotary twister generates a clamping effect on the multi-bend due to the difference in rotation speed between the rotary twister and the subsequent winder and the axial tension at the multi-strand position when the twisting operation is initiated in combination with the twister, and referring to the (t) diagram and the (v) diagram of fig. 1, as the rotary twister continuously rotates as if the multi-strand bend is pinched by fingers and continuously rotates around the multi-strand output port, the rotary twister imparts a twist to the strands. The multi-strand yarn can then be drawn off from the rotary twister and wound onto the winder as a result of the difference in the angular velocities of rotation between the winder and the rotary twister. The yarn winder wound with the multi-strand yarn actually corresponds to a bobbin, that is, the parallel multi-strand bobbin 4 in the hollow spindle tank 701 shown in fig. 2, since the multi-strand yarn is unwound from the yarn winder while being wound on the yarn winder in the present invention, and is folded back to the rotary twister to rotate together with the rotary twister and then output after being bent, the rotary twister actually performs the twisting effect of one-to-two twisting as in a two-for-one twister on the multi-strand yarn fed in the second time, and the multi-strand yarn output from the rotary twister also forms an air ring as shown by reference numeral 9 in fig. 2 along with the rotation of the rotary twister. Referring to the drawings (c), (d) and (e) of fig. 1, the multi-strand yarn output from the twister of the twisting device provided by the invention can be continuously twisted for three times including one-time one-turn single twist and one-time one-turn two-twist, compared with the two processes of the traditional two-for-one twister and the ring spinning frame, the twister equipped with the twisting device provided by the invention can completely realize doubling, twisting, collecting and winding to obtain the final product cheese at one time, that is, the doubling, twisting and winding to obtain the product cheese from single-strand bobbins in one process by one device. Of course, the spinning and winding processes of the ring spinning frame can be completely realized in one step.

In order to accurately control the difference between the rotating speed of the rotary twister and the rotating speed of the yarn winder, save cost and avoid using a high-price servo motor or a high-price stepping motor, the invention preferably adopts a differential speed rotating transmission device between the rotary twister and the yarn winder to ensure that the rotary twister and the yarn winder rotate together in the same direction and ensure that the angular speed difference exists between the rotary twister and the yarn winder. The differential rotation transmission device is a very mature practical technology in the mechanical professional field, for example, the corresponding transmission ratio can be achieved by changing the gear ratio of two meshed gear wheels, for the invention, the transmission device of the two coaxial and same-direction rotating components of the rotation twisting device and the yarn winding device can be constructed by adopting a straight gear or bevel gear speed change mechanism to realize the differential effect of the two coaxial and same-direction rotating components, so that the other component can be driven to perform same-direction differential rotation by simply driving one of the two components to rotate.

In the above preferred embodiment using the differential transmission device, the yarn winder of the present invention is preferably located outside the rotary twister, the multiple strands twisted by the rotary twister are wound on the yarn winder from the outside of the yarn winding portion of the yarn winder, and the differential transmission device is preferably located inside the rotary twister. The rotary twister and the yarn winder are realized as separate parts, so that the production, the manufacture and the maintenance are convenient when the invention is implemented; winding the multi-strand yarn from the rotary twister on the yarn winder from the outside of the yarn winder is also a smooth and convenient practice; considering that the differential transmission device needs to avoid the adverse effect of dust, moisture and the like on precise variable-speed transmission as much as possible, the differential transmission device should be provided with dustproof and waterproof isolation and protection measures, so that the differential transmission device is a good choice to be arranged inside the rotary twister and the yarn winder, firstly, the differential transmission device is tightly attached to the rotary twister and the yarn winder to conveniently realize variable-speed transmission, and secondly, the differential transmission device is used as a natural protective barrier to isolate the differential transmission device from dust, moisture and the like outside. The differential transmission is preferably placed inside the rotary twister, since the size of the rotary twister tends to be larger than the winder, since the strands are preferably wound thereon from outside the winder. Of course, the differential transmission device can be positioned inside the yarn winder or even outside the yarn winder and the yarn winder, but all the preferable technical solutions are to reduce the manufacturing and operation and maintenance cost of the factory as much as possible on the basis of ensuring the differential transmission effect.

As a preferred specific implementation manner of the two preferred embodiments, in the implementation of the present invention, the rotary twister will include a hollow rotating shaft which is installed on the bracket and can be driven to rotate freely, the rotating shaft is actually the core component of the rotary twister, the rotary twister also includes a hollow drum which is fastened with the rotating shaft into a whole, and the multiple strands fed into the rotary twister will bend after passing through the hollow interior of the rotating shaft, pass through the rotating shaft and enter the yarn guide channel on the drum wall of the drum; the multiple strands penetrate out of the yarn guide channel and then are wound on the yarn winder. The multi-strand yarn fed into the rotating shaft is bent once and is combined with the rotation of the rotating shaft, so that the twisting effect of one-to-one twisting of the multi-strand yarn can be realized like a ring spinning frame, the differential transmission device can be accommodated in the hollow rotating drum, and the multi-strand yarn can enter the drum wall of the rotating drum with enlarged size from the rotating shaft and then is conveniently wound on the yarn winder from the outside of the subsequent yarn winder. The yarn winder comprises a hollow center shaft positioned on the axis of rotation of the yarn winder, and a yarn winding drum which can freely rotate around the center shaft, wherein the yarn winding drum is actually a core component of the yarn winder, and a plurality of strands which penetrate out of a yarn guide channel of the drum are wound on the yarn winding drum; in order to achieve the twisting effect of one-turn two-twist of the two-for-one twister, in the preferred embodiment of the invention, the hollow central shaft is provided with a hollow inner channel which is axially through and through which multiple strands can pass, the multiple strands wound on the winding bobbin enter the hollow inner channel of the central shaft after being unwound and then turn back to the rotary twister through the hollow inner channel, and the multiple strands which turn back to the rotary twister enter the hollow inner part of the rotating shaft and are output after being bent for at least one time. Note that since the rotary twister is continuously rotated during operation, the present invention also applies a one-by-one twisting effect as in the aforementioned two-for-one twister to the strands unwound from the winder and folded back to the rotary twister, and referring to fig. 2 and 1, the winder of the present invention is actually equivalent to the parallel multi-strand bobbins 4 in the hollow spindle 701 of the two-for-one twister, the hollow inner channel of the central shaft is equivalent to the hollow inner channel of the spindle in the two-for-one twister shown in fig. 2, and the rotating shaft is equivalent to the twisting disk 8 in the spindle twisting device of the two-for-one twister shown in fig. 2. In practical application, since the strands output from the rotating shaft are all pulled and collected by the winding device, the strands unwound from the yarn winder are all pulled by the pulling force from the winding device to generate axial pulling force everywhere, so that the bending part of the strands is subjected to radial clamping force when the strands are bent and output from the rotating shaft, in the preferred embodiment of the invention, the bending part of the strands is clamped and continuously rotates along with the rotation of the rotating shaft, and thus the twisting effect of one-turn and two-twist of the two-for-one twister shown in fig. 2 and fig. 1 is realized.

As a further preferred implementation scheme when the above embodiment is implemented, in the present invention, a hollow channel which axially penetrates through the whole rotating shaft is processed in the rotating shaft center line direction of the hollow rotating shaft, and the multiple strands fed into the twisting device firstly penetrate into the hollow channel; a yarn guide block is fixedly inserted on the shaft body of the rotating shaft, two channels for the multiple strands to pass through are arranged in the yarn guide block, an opening at one end of the first channel is in butt joint with the hollow channel of the rotating shaft, the multiple strands fed into the twisting device are bent and then output to the outside of the rotating shaft from an opening at the other end of the first channel to enter the yarn guide channel of the rotating drum. In addition, in this implementation scheme, the middle shaft is also processed into a yarn channel axially penetrating through the whole middle shaft, an end opening of the yarn channel is opposite to an end opening of the hollow channel of the rotating shaft, and the multiple strands unwound from the winding bobbin are folded back into the hollow channel of the rotating shaft through the yarn channel. One end opening of a second channel in the two channels for the multiple strands to pass through of the yarn guide block is butted with the hollow channel of the rotating shaft so that the multiple strands folded back to the rotating shaft can penetrate into the second channel, and the multiple strands penetrating into the second channel are bent at least once and then output out of the rotating shaft from the other end opening of the second channel so as to be output from the twisting device. Note that the realization scheme of using the independent detachable yarn guide block to realize the two-time bending of the multiple strands is based on the consideration of conveniently processing the bending channel of the multiple strands and processing the multiple strand passing channel of the rotating shaft at one time, and of course, the realization scheme is only a preferred specific embodiment of the present invention, and other ideas and technical schemes such as inserting two bent pipes into the rotating shaft to pass the multiple strands are feasible and also based on the basic concept of the technical scheme of the present invention.

On the basis of the foregoing preferred embodiment, as a preferred embodiment of the differential transmission device, in the present invention, a middle shaft fixing member that does not rotate together with the yarn winding drum by using a magnetic force at a spacing is fixedly installed at a position where the middle shaft is located outside the yarn winding drum; a driving gear which can drive the differential transmission device is fastened on the rotating shaft, and the driving gear is coaxial with the rotating shaft and can rotate along with the rotating shaft; the differential transmission device comprises a first transmission gear meshed with a driving gear extending into the rotary drum, and further comprises a second transmission gear coaxially and fixedly integrated with the first transmission gear, and further comprises a gear mounting disc for mounting the first transmission gear and the second transmission gear, wherein the gear mounting disc is fastened on the middle shaft; the yarn winding device further comprises a driven gear which is fixedly connected with the yarn winding barrel into a whole, the rotating axis of the driven gear is superposed with the rotating axis of the yarn winding device, and the driven gear is meshed with the second transmission gear. So then differential transmission just utilizes through the epaxial drive gear of pivot, first and second drive gear, with the driven gear that is solid as an organic whole around a yarn section of thick bamboo the rotatory action drive of pivot the core member around the yarn section of thick bamboo of yarn ware is syntropy rotatory together, only needs adjustment drive gear, first and second gear and the tooth ratio of driven gear can realize different drive ratios moreover, also realizes promptly rotatory twister and around the differential between the coaxial syntropy rotatory rotational speed of yarn ware. The reason why the middle shaft is fixed by the middle shaft fixing member so as not to rotate with the winding bobbin is that in the present embodiment, two gear positions of the differential transmission device are indirectly fixed by the middle shaft, and the middle shaft fixing member using the air-separating magnetic force is shown in fig. 2 because a conventional fixing mechanism tends to interfere with the multi-strand output from the twisting device of the similar two-for-one twister, and because the multi-strand output from the twisting device of the similar two-for-one twister rotates around the twisting device as shown in the balloon 9 of fig. 2, a space for the multi-strand to rotate continuously and completely around the middle shaft can be created by attracting and fixing the middle shaft by the air-separating magnetic force. Of course, there are other possibilities for implementing the differential transmission and certainly there is room for further improvement, and after all, there are already a great variety of elaborate and useful mechanical transmission changing devices.

Finally, the invention also provides a twisting machine, which uses the twisting device, and the twisting machine using the twisting device can conveniently integrate the doubling process and the twisting process together just by matching two winding devices which are used for conveying the multi-strand yarns to the twisting device and collecting the twisted multi-strand yarns by drawing from the twisting device.

In summary, the twisting device and the twisting machine provided by the invention can perfectly inherit the twisting principle of a mature two-for-one twisting machine and a mature ring spinning machine and combine the twisting machine and the ring spinning machine into a whole, and can conveniently integrate two processes required by the traditional two-for-one twisting machine and the ring spinning machine into one twisting machine to finish the two processes at one time, successfully utilize a single twisting machine to realize the production target of two separate processes of the traditional two-for-one twisting machine and the ring spinning machine in one step, save the field, and also save the consumption of power energy and the corresponding labor cost.

Drawings

FIG. 1 shows two processes of doubling and twisting for producing twisted multi-ply yarn by using a two-for-one twister, two processes of spinning and spooling for generating spun yarn by twisting roving by using a ring spinning frame, and twisting principles thereof; the figure has five subgraphs of (A), (B), (C), (D) and (E), and one horizontal dotted line and two vertical dotted lines in the figure are used for separating the subgraphs. The drawing shows the schematic diagram of two processes of doubling and twisting for producing twisted multi-strand yarn by using a two-for-one twister, the drawing shows the schematic diagram of two processes of spinning and spooling for generating spun yarn by twisting the roving by using a ring spinning frame, the drawing shows the schematic diagram of the twisting principle for realizing the two-for-one twisting effect of one-for-two twisting by using a spindle twisting device of the two-for-one twister, and the drawing shows the twisting principle for demonstrating the twisting and winding collecting effects of the spindle twisting device of the ring spinning frame and the twisting principle of one-for-one twisting of the twisting device of the ring spinning frame by using two multi-strand yarns. It is noted that in understanding the twisting principle of the (c), (d) and (e) diagrams, the rotation speed of the winding roller 12 can be imagined as zero, i.e. its action is simplified to correspond to a simple gripping action by fingers pinching the strands and a radial clamping action of the strands as described above.

Fig. 2 shows a cut-away view of a spindle twisting device of a two-for-one twister and a schematic diagram of the principle of the spindle twisting device for realizing one-turn two-twist effect.

Fig. 3 shows the outline and cross-sectional schematic view of the twister of an exemplary embodiment of a twisting apparatus provided by the present invention, in which a vertical dotted line separates the outline schematic view and the cross-sectional schematic view of the twister, and the lower part of the diagram shows the differential transmission 22, which is the core of the cross-sectional schematic view, in a greatly enlarged manner. The components of the core of the present invention, such as the rotary twister 19 and the yarn winder 20, are indicated by reference numerals in the figure, and the reference numerals of some components included therein are also indicated by semi-enclosed lines with leads if the positions are concentrated at one point. It can be seen from this figure in conjunction with fig. 4 that the rotation axes of the yarn winder 20 and the rotary twister 19 are coincident, the rotation axis of the yarn winder 20 is the axis of the central shaft 21, and the rotation axis of the rotary twister 19 is the axis of the core assembly rotating shaft 18.

Fig. 4 is a schematic diagram illustrating the effect of the exemplary embodiment of the present invention in twisting operation and outputting the multiple strands fed therein, on the basis of fig. 3, and in fact, this diagram is identical to the view of fig. 3, i.e., the multiple strands fed in this embodiment in the specific production process are shown on the basis of fig. 3, and it is suggested that this diagram is observed in comparison with fig. 3, and the black solid lines in this diagram refer to the multiple strands. Moreover, the figure shows a series of complete production process flows from the doubling of single-strand yarns to the winding and collection of twisted multi-strand yarns on the basis of fig. 3, and actually shows the whole production process flow of the twisting machine using the twisting device provided by the invention, and it can be seen from the figure that the twisting machine using the twisting device provided by the invention can combine the two processes of the conventional two-for-one twister and the ring spinning frame into one process and complete the process on one single twisting machine in one step as described above, and only the yarn collecting ring 14 for doubling and the winding device represented by a pair of winding rollers 12 for inputting multi-strand yarns or rough yarns, and the winding device represented by a pair of winding rollers 12 for drawing and collecting twisted multi-strand yarns and the supporting devices such as the transverse yarn guiding device 13 shown in the upper part in the figure can be provided to directly produce the twisted bobbin 6 from a plurality of single-strand bobbins 1 in one step And a final finished product, or a spun yarn bobbin is directly produced from a roving bobbin in one step. When the driving belt 10 slides along the direction of the black solid arrow against the friction driving wheel 1802 fastened below the rotating shaft 18, the rotating shaft 18 and the rotating drum 1901 fastened together with the rotating shaft 18, the rotating disc 1904, the rotating disc fixing frame 1905 and the driving gear 1803 and the yarn guide block 1801 fastened on the rotating shaft 18 are driven to rotate continuously in the clockwise direction indicated by the arc arrow, and the yarn winder 20 including the core part thereof, the yarn winding drum 2001, is driven by the differential mechanism 22 to rotate continuously in the clockwise direction indicated by the arc arrow. Of course, if the direction of travel of belt 10 in fig. 4 were to be reversed, the direction of coaxial co-rotation of the rotary twister and the winding drum would also be reversed.

Fig. 5 shows a schematic step-by-step disassembly of an exemplary embodiment of the present invention. The left side of the figure shows an effect diagram of the twisting device of the embodiment when the twisting device is split into several main core components, the further split effect diagram of each core component is shown as a graph in a circle surrounded by dotted lines indicated by arc arrows in the figure, the upper right corner of the figure also shows technical features of the rotating shaft 18 and the yarn guide block 1801 fastened and inserted thereon in an enlarged manner in a perspective view, and the lowest part of the figure shows some technical features of the middle shaft fixing part 2102 and the magnetic attraction ring 2103 matched with the middle shaft fixing part by using spacing magnetic force to perform fixing operation on the middle shaft 21 in an enlarged manner by using a blank area in the figure.

[ list of reference numerals ]

1. A single-strand bobbin; 2: a single strand; 3: parallel stranded wires; 3': roving; 4: parallel multi-strand bobbins; 4': a roving bobbin; 5: twisting the multiple strands; 5': spinning; 501: pre-twisting the multiple strands; 502: twisting the multiple strands; 6: twisting a plurality of bobbins; 6': cone yarn; 7: a spindle; 701: a hollow ingot can; 8: twisting the disc; 801: bending; 802: a transverse channel; 803: a drive shaft; 9: a balloon; 10: a transmission belt; 11: a twisting disk support; 12: a winding roller; 13: a traverse yarn guide; 14: a wire collecting ring; 15: a bead ring; 16: a ring; 17: a quill;

18: a rotating shaft; 19: rotating the twister; 20: a yarn winder; 21: a middle shaft; 22: a differential rotation transmission device;

1801: a yarn guide block; 180101: a first channel; 180102: a second channel; 1802: a friction drive wheel; 1803: driving a gear: 1804: a support; 1805: a rolling bearing; 1808: a hollow channel;

1901: a rotating drum; 1902: a hollow top cover; 1903: a yarn guide channel; 190301: a vertical channel; 190302: a transverse channel; 1904: a rotary table: 1905: a turntable fixing frame;

2001: a yarn winding drum; 2002: a top cover; 2003: a bottom cover; 200301: a driven gear;

2102: a middle shaft fixing part; 210202: a porcelain ring; 2103: a magnetic attraction ring; 2104: a magnet; 2105: a rolling bearing; 2106: a needle bearing; 2107: an axial milling structure; 2108: a yarn channel;

2201: a first drive gear; 2202 a second transmission gear; 2203: a gear mounting plate; 2204: and a plane thrust bearing.

Detailed Description

The present invention will be described in detail below with reference to a specific exemplary embodiment in conjunction with the contents of the foregoing "background of the invention", "summary of the invention" and "brief description of the drawings".

Specifically, an exemplary embodiment of a twisting apparatus, as shown in fig. 4 and referring to fig. 1, can perform a twisting operation on a plurality of strands fed thereto and then output the twisted strands, as in the conventional twisting apparatus. As shown in fig. 3 and referring to fig. 4 and 5, the twisting apparatus includes a twister for twisting the multi-strand wires and a bracket 1804 for mounting the twister on the twister, fig. 3 shows only the twister and the bracket 1804 thereof, and fig. 5 shows a schematic view of the step-by-step disassembly of the twister and the bracket 1804 thereof. Unlike the twisting device of the conventional two-for-one twister and the ring spinning frame, as shown in fig. 3, 4 and 5, the twister of the twisting device provided by the present invention includes a rotary twister 19 which can bend and rotate the multi-strand fed into the twisting device to twist the multi-strand, and in this embodiment, the multi-strand is firstly bent at the first channel 180101 of the yarn guide block 1801 on the rotating shaft 18 after being fed into the rotary twister 19 for the first time as shown in fig. 4 and with reference to fig. 3 and 5. In addition, as shown in fig. 3, 4 and 5, the twister further includes a yarn winder 20, and the multi-strand fed to the twisting device is wound on the yarn winder 20 after being twisted by the rotary twister 19. As shown in fig. 3, 4 and 5 and described in the previous section of the drawings, the yarn winder 20 can be rotated continuously, and the yarn winder 20 rotating as shown in fig. 3 and 4 is coincident with the rotation axis of the rotary twister 19 and has the same rotation direction but different rotation angular velocities so as to ensure that the yarn winder 20 can pull and wind the strands from the rotary twister 19 onto the yarn winder 20 or ensure that the rotary twister 19 can pull and wind the strands from itself onto the yarn winder 19. For the present embodiment as shown in fig. 4, when the angular velocity of the rotary twister 19 in the clockwise dimension indicated by the arc-shaped arrow in fig. 4 is slightly smaller than the angular velocity of the winder 20 rotating in the same direction therewith, the winder 20 pulls the strands out of the rotary twister 19 and winds them on itself; the strands can also be wound onto the winder 20 if the angular speed of rotation of the winder 20 is less than the angular speed of rotation of the rotary twister 19 in the same direction, in which case the strands will be actively wound onto the winder by the rotary twister 19. In the specific operation of this embodiment, the initial fastening friction force required for winding the multi-strand yarn on the yarn winder 20 can be obtained by winding the multi-strand yarn on the yarn winder 20 for a plurality of turns to make the multi-strand yarn tightly attached to the yarn winder 20 without slipping easily in the production initialization stage of the twisting device and the twisting machine. The multi-strand yarn wound on the yarn winder 20 in the present invention as shown in fig. 4 is unwound from the yarn winder 20 and folded back to the rotary twister 19, and the yarn winding position of the yarn winder 20 of the present embodiment as shown in fig. 4 has a slope so that the multi-strand loops are automatically arranged upward for subsequent unwinding, although the multi-strand loops are stacked and formed into multiple layers so long as the subsequent pulling force is large enough to ensure unwinding of the multi-strand yarn from the yarn winder 20. The stranded wire folded back to the rotary twister 19 rotates together with the rotary twister 19 as shown in fig. 4 and is output after at least one bending is performed. As shown in fig. 4 and combined with fig. 3 and 5, the multi-strand yarn folded back to the rotary twister 19 is bent at the second passage 180102 of the yarn guide block 1801 in the rotating shaft 18, and then drawn around the rotating disc 1904 of the rotary twister 19 and output to the winding device represented by the upper pair of winding rollers 12 in fig. 4, and then regularly wound on the final product twisted multi-strand bobbin 6 by the cooperation of the traverse yarn guide device 13.

As shown in fig. 4 and described in conjunction with fig. 1 and 2, it can be seen that in the present invention, the rotary twister 19 actually performs a twisting operation of one-to-one twisting on the fed multi-strand according to the twisting principle of the ring spinning frame, because the rotary twister 19 bends and rotates the fed multi-strand as in the ring spinning frame, and the bending of the multi-strand in the rotary twister 19 generates a clamping effect on the bending position of the multi-strand due to the difference in rotation speed between the rotary twister 19 and the subsequent winder 20 and the axial tension of the multi-strand when the winding operation is initiated in conjunction with the twister, and the continuous rotation of the rotary twister 19 of the present invention generates a clamping effect on the bending position of the multi-strand as the bending position of the multi-strand is pinched by the hand roller to surround the lower pair of winding rollers 12 in fig. 4 As the multi-strand outlet of the winding device represented by the figure continues to rotate, with reference to the (t) and (t) diagrams of fig. 1, the rotary twister 19 applies a single turn of twist as described above to the length of multi-strand fed through the winding device represented by the pair of winding rollers 12 located below in fig. 4. In the embodiment shown in fig. 4, the bending point of the multi-strand yarn is located at the first channel 180101 of the yarn guide block 1801 on the rotating shaft 18 shown by reference numeral 180101, and the multi-strand yarn output port is located at a position where the multi-strand yarn is clamped by the winding device represented by a pair of winding rollers 12 below fig. 4. Subsequently, as described above and shown in fig. 4, the twisted yarn can be pulled out of the rotary twister 19 and wound onto the winder 20 due to the difference in rotational angular velocity between the winder 20 and the rotary twister 19. The winder 20, which winds multiple strands at the same time as shown in fig. 4, actually corresponds to a bobbin, i.e. to the parallel multiple bobbins 4 located inside the hollow spindle 701 in fig. 2. In the present invention, the multi-strand yarn is unwound from the yarn winder 20 and simultaneously wound around the yarn winder 20, and then folded back to the rotary twister 19 and then output after rotating with the same, in this embodiment, the multi-strand yarn unwound from the yarn winder 20 first reaches the upper end of a central shaft 21 shown in fig. 4, then bends from the upper end of the central shaft 21 and passes through a hollow yarn channel 2108 therein and returns to the rotating shaft 18 included in the rotary twister 19, then bends in a second channel 180102 of a yarn guide block 1801 on the rotating shaft 18 and outputs to the rotating shaft 18 and the outside of the rotary twister 19, and then is pulled out of the twisting device by a winding device represented by a pair of winding rollers 12 and finally wound into a final multi-strand product represented by a twisting barrel 6. Comparing fig. 4 with fig. 1 and fig. 2, it can be seen that the rotary twister 19 actually performs the twisting effect of one-to-two twisting as a two-for-one twister, and the multi-strand output from the rotary twister 19 forms the balloon as shown by reference numeral 9 in fig. 2 with the rotation of the rotary twister 19, and the multi-strand is continuously pulled by the winding device represented by the pair of winding rollers 12 shown in fig. 4, so that the power for unwinding from the winder 20 is maintained at all times and the axial tension exists at the multi-strand, so that a radial clamping force is generated at the bending position shown by reference numeral 180102. As shown in fig. 4 and referring to fig. 2, in this embodiment, the yarn winder 20 is actually equivalent to the parallel multi-strand bobbin 4 placed in the hollow spindle tank 701 in fig. 2, the bending position of the second passage 180102 in this embodiment in fig. 4 is equivalent to the bending position 801 in fig. 2, the turntable 1904 of this embodiment in fig. 4, which is fastened to the rotating shaft 18, is equivalent to the twisting disk 8 in fig. 2, and the section of the multi-strand yarn output from the bottom of the turntable 1904 of this embodiment to the yarn collecting ring 14 in fig. 4 continuously rotates along with the rotating shaft 18, the turntable 1904 fastened thereto, and the turntable fixing bracket 1905 for assisting in fixing the turntable 1904, thereby forming a balloon which can apply twist to the multi-strand yarn, like the balloon 9 shown in fig. 2. Referring to diagrams (c), (d) and (e) of fig. 1 as shown in fig. 4, the multi-strand output from the twister of the twisting apparatus provided by the present invention can be continuously applied with three twists including one "one turn for one twist" and one "one turn for two twists", comparing with fig. 4 and fig. 1, compared with the two processes of the conventional two-for-one twister and the ring spinning frame, the twister equipped with the twisting apparatus provided by the present invention can completely realize doubling and twisting, collecting and winding to obtain final cost bobbin yarn at one time, that is, the effect of doubling from a single-strand bobbin 1, twisting and finally winding to obtain a product twisted multi-strand bobbin in one process with one device. And the spinning and winding processes of the ring spinning frame can be completely realized in one step, and the final finished product cone yarn can be directly produced from the roving.

In order to accurately control the difference between the rotating speed of the rotary twister and the rotating speed of the yarn winder and simultaneously save the cost and avoid using a high-price servo motor or a stepping motor, the invention preferably adopts a differential speed rotating transmission device between the rotary twister and the yarn winder to ensure that the rotary twister and the yarn winder rotate together in the same direction and the angular speed difference exists between the rotary twister and the yarn winder, and the embodiment adopts the differential speed rotating transmission device 22 which realizes variable speed transmission by two pairs of gear transmissions as shown in figures 3, 4 and 5. The invention relates to a differential rotation transmission device in the mechanical professional field, which is a very mature practical technology, for example, a corresponding transmission ratio can be achieved by changing the gear ratio of two meshed gear wheels, for the invention, a transmission device consisting of a straight gear or a bevel gear speed change mechanism can be adopted to realize the differential effect of two coaxial and same-direction rotating components of a rotary twister and a yarn winder, and thus, only one of the two components needs to be simply driven to rotate, so that the other component can be driven to perform precise same-direction differential rotation through the rotating device. Of course, other types of differential transmission than the differential transmission 22 featuring two pairs of meshing gears shown in fig. 3, 4 and 5 are also possible and can be applied in the present invention, after all, various types of differential transmission have already been developed for various industries.

In addition to the above-mentioned preferred embodiment using the differential transmission device, preferably, as shown in fig. 3 and 4 and referring to fig. 5, the yarn winding device 20 of the present invention is located outside the rotary twister 19, the strands twisted by the rotary twister 19 as shown in fig. 4 are wound on the yarn winding device 20 from the outside of the yarn winding portion of the yarn winding device 20, and the differential rotation transmission device 22 is located inside the rotary twister, in this embodiment, the strands output from the yarn guide channel 1903 of the drum 1901 of the rotary twister 19 as shown in fig. 4 and 3 are wound on the core component yarn winding barrel 2001 of the yarn winding device 20 located outside the rotary twister 19. The implementation of the rotary twister 19 and the yarn winder 20 as separate parts as shown in fig. 3, 4 and 5 facilitates the manufacturing and maintenance of the present invention; winding the strands from the rotary twister 19 onto the winder 20 from the outside of the winder 20 is also a straightforward and easy practice; considering that the differential transmission device needs to avoid the adverse effect of dust, moisture and the like on the precise variable speed transmission as much as possible, the differential transmission device should be equipped with the isolation and protection measures of dust, water and the like, so that the disposition of the differential transmission device 22 inside the rotary twister 19 and the yarn winder 40 in the embodiment shown in fig. 3, 4 and 5 is a good choice, firstly, the differential transmission device will be tightly attached to the two devices to conveniently realize the variable speed transmission, and secondly, the differential transmission device serves as a natural protective barrier to isolate the two devices from the dust, moisture and the like outside. Referring to fig. 3 and 4, the differential gear 22 is preferably placed inside the rotary twister 19, since the size of the rotary twister 19 tends to be larger than the winder 20, since the strands are preferably wound thereon from outside the winder 20. Of course, the differential transmission device can be positioned inside the yarn winder or even outside the yarn winder, and all the preferable technical solutions are all for reducing the manufacturing and operation and maintenance cost of the factory as much as possible on the basis of ensuring the differential transmission effect.

As a specific embodiment of the two preferred embodiments, in the implementation of the present invention, as shown in fig. 3, 4 and 5, the rotary twister 19 in this embodiment will include a hollow rotating shaft 18 installed on the bracket 1804 and driven to rotate freely, the rotating shaft 18 is actually the core component of the rotary twister 19, the rotary twister 19 shown in fig. 3, 4 and 5 further includes a hollow drum 1901 fastened to the rotating shaft 18, and the strands fed into the rotary twister 19 shown in fig. 4 and compared with fig. 3 will bend and pass through the rotating shaft 18 and then enter the yarn guide channel 1903 on the drum wall 1901 after passing through the hollow interior of the rotating shaft 18; the multiple strands penetrate through the yarn guide channel 1903 and then are wound on the yarn winder. In this embodiment, the yarn guiding channel 1903 is composed of a transverse channel 190302 and a vertical channel 190301 located at the bottom of the rotating drum 1901 as shown in fig. 3 and fig. 4, in this embodiment, the yarn guiding channel 1903 is formed by drilling holes on the bottom and the wall of the rotating drum 1901, but may also be formed by welding a bent pipe to the rotating drum 1901, or may be implemented in other manners. As mentioned above, the multi-strand fed to the rotating shaft 18 is bent once and simultaneously the rotating shaft 18 is rotated, so that the twisting effect of one-to-one twisting of the multi-strand can be realized like a ring spinning frame, as shown in fig. 3, 4 and 5, in this embodiment, the bending of the multi-strand in the rotating shaft 18 is realized by the first passage 180101 and the second passage 180102 of a yarn guide block 1801 fastened on the shaft body of the rotating shaft 18, the differential transmission device 22 can be accommodated in the hollow rotating drum 1901 as shown in fig. 3, 4 and 5, and the multi-strand is conveniently wound on the yarn winder 20 from the outside of the subsequent yarn winder 20 after entering the cylindrical wall of the rotating shaft 1901 with enlarged size from the rotating shaft 18. As shown in fig. 3 and 4, the yarn winder 20 includes a hollow central shaft 21 located on the rotation axis thereof, and a yarn winding drum 2001 freely rotatable around the central shaft 21, the yarn winding drum 2001 is actually the core component of the yarn winder 20, and the multiple strands coming out from the yarn guide channel 1903 of the drum 1901 are wound on the yarn winding drum 2001; in order to achieve the twisting effect of one-to-two twisting in the aforementioned two-for-one twister, in this preferred embodiment of the present invention, the hollow central shaft 21 has a hollow inner channel which is axially through and through which multiple strands can pass, that is, the yarn channel 2108 shown in fig. 3 and 4, after the multiple strands wound on the winding drum 2001 are unwound, as shown in fig. 4, the multiple strands enter the hollow inner channel of the central shaft 21 and are folded back to the rotary twister 19 through the hollow inner channel, the multiple strands folded back to the rotary twister 19 enter the hollow inner part of the rotating shaft 18 and are output after at least one bending occurs, and in this embodiment, the multiple strands folded back to the rotary twister 19 are output after being bent through the second channel 180102 of the yarn guide block 1801. In the present embodiment, the second passage 180102 is connected to a radial passage in the turntable mount 1905 below the turntable 1904 as shown in fig. 4 and 3, and the multiple strands are guided along the turntable 1904 through the radial passage after the second passage 180102 is bent, and then are drawn around the turntable 1904 to the winding device represented by a pair of winding rollers 12 above in fig. 4, during which the multiple strands also generally pass through a line collecting ring 14, also referred to as a "yarn guide hook", as shown in fig. 4. In the present embodiment, the turntable 1904 and the turntable holder 1905 are both fastened to the shaft 18, and therefore, the shaft 18 continuously rotates together with the shaft 18 after being driven to rotate by the belt 10. Note that since the rotary twister 19 is continuously rotated during operation, the present invention also applies a one-by-one twisting effect as in the aforementioned two-for-one twister to the multi-ply yarn unwound from the yarn winder 20 and folded back to the rotary twister 19. in comparison with fig. 3, 4 and 2 and 1, the yarn winder 20 of the present invention is actually equivalent to the parallel multi-ply bobbins 4 in the hollow spindle can 701 of the two-for-one twister, the hollow inner channel of the central shaft 21 is equivalent to the hollow inner channel of the spindle in the two-for-one twister shown in fig. 2, and the rotating shaft 18 and the rotating disc 1904 fixed thereto are equivalent to the twisting disc 8 in the spindle twisting device of the two-for-one twister shown in fig. 2. In practical implementation, since the strands output from the rotating shaft 18 are all pulled and collected by the winding device, as shown in fig. 3 and 4, by the pair of winding rollers 12 shown at the upper part in the figure, the strands unwound from the yarn winder 20 are all pulled by the pulling force from the winding device to generate axial pulling force everywhere, so that the bending part of the strands is subjected to radial clamping force when the strands are bent and output from the rotating shaft 18, in this preferred embodiment of the present invention, the strands are clamped at the bending part of the second channel 180102 of the yarn guide block 1801 shown in fig. 3 and 4 and continuously rotate along with the rotation of the rotating shaft 18, so that the twisting effect of one-turn and two-turn of the twisting machine shown in fig. 2 and 1 is achieved.

As a further preferred implementation scheme when implementing the above embodiment, in the present invention, as shown in fig. 3 and fig. 4, a hollow passage 1808 penetrating through the whole rotating shaft axially is processed in the direction of the rotating axis of the hollow rotating shaft 18, and the multiple strands fed into the twisting device first penetrate into the hollow passage 1808; a yarn guide block 1801 is fixedly inserted on the shaft body of the rotating shaft 18, two channels for multiple strands to pass through are arranged in the yarn guide block 1801, as shown in fig. 3, 4 and 5, an opening at one end of a first channel 180101 is butted with the hollow channel 1808 of the rotating shaft 18, the multiple strands fed into the twisting device are bent and then output from an opening at the other end of the first channel 180101 to the outside of the rotating shaft 18 and enter the yarn guide channel 1903 of the rotating drum 1901, in this embodiment, the multiple strands first enter a transverse channel 190302 drilled at the bottom of the rotating drum 1901 after being output from the rotating shaft 18, then are bent and then enter a vertical channel 190301 of the yarn guide channel 1903 drilled on the wall of the rotating drum 1901, and finally leave the rotating drum 1901 and the rotating twister 19 from an opening at the uppermost end of the vertical channel 190301. In addition, in this embodiment, as shown in fig. 3 and 4, the middle shaft 21 is also processed to form a yarn passage 2108 axially penetrating the whole middle shaft, an end of the yarn passage 2108 is opened opposite to an end of the hollow passage 1808 of the rotating shaft 18, and the strands unwound from the bobbin 2001 are folded back into the hollow passage 1808 of the rotating shaft 18 through the yarn passage 2108. As shown in fig. 3, 4 and 5, an opening of one end of a second channel 180102 of the two channels for multiple strands of the yarn guide block 1801 is abutted against the hollow channel 1808 of the rotating shaft 18 so as to allow the multiple strands folded back to the rotating shaft 18 to penetrate into the second channel 180102, and as shown in fig. 3 and 4, the multiple strands penetrating into the second channel 180102 are bent at least once therein and then output from the opening of the other end of the second channel 180102 to the outside of the rotating shaft 18 so as to be output from the twisting device. Note that the realization scheme of the present invention, as shown in fig. 3, 4 and 5, adopts the independent removable yarn guide block 1801 to realize the two-time bending of the multiple strands, based on the consideration of the two-time bending channel for processing the multiple strands and the multiple-strand passing channel for processing the spindle 18 at one time, i.e. the hollow channel 1808, of course, such exemplary embodiment as shown in fig. 3, 4 and 5 is only a preferred embodiment of the present invention, and other ideas and technical schemes, such as adopting a bent pipe with two bends inserted into the spindle to pass the multiple strands, are also feasible and also based on the basic concept of the technical scheme of the present invention.

In addition to the above preferred embodiments, as a preferred embodiment of the differential transmission device, in the present invention, as shown in fig. 3, 4 and 5, a central shaft fixing member 2102 which does not rotate with the winding bobbin 2001 by using a magnetic force in a space is tightly installed on the central shaft 21 at a position outside the winding bobbin 2001, in this embodiment, the central shaft fixing member 2102 is a four-sided tightly embedded magnet 2104, the conical central shaft fixing member may be made of a nonmagnetic material such as an aluminum-magnesium alloy, a hollow magnetic attraction ring 2103 is configured with the central shaft fixing member 2102 as shown in fig. 3, 4 and 5, and a magnet attracted to a corresponding magnet on the central shaft fixing member 2102 is tightly embedded on an inner annular wall of the magnetic attraction ring 2103. As mentioned above and referring to fig. 4, since the rotary twister 19 of the twisting apparatus provided by the present invention continuously rotates during operation, the strands output from the rotary twister 19 continuously rotate, so that a balloon 9 as shown in fig. 2 is formed, in this embodiment, the strands output from the core component rotating shaft 18 of the rotary twister 19 to the winding roller 12 of the winding apparatus pass around the edge of the rotating disc 1904 and then are folded upward, and then pass through a whole circle gap between the central shaft fixing member 2102 and the magnetic attraction ring 2013 to pass through a line concentration ring 14 to a pair of winding rollers 12 constituting the winding apparatus, it is obvious that as the rotating disc 1904 fastened to the rotating shaft 18 rotates along with the rotating shaft 18, the segment of the multi-strand wire between the rotating disc 1904 and the wire-collecting ring 14 will rotate continuously around the axis of the rotating shaft 18 and the central shaft 21 to form an air ring. It can also be seen from fig. 4 that if the central shaft fixing member 2102 does not use the magnetic force for fixing the central shaft 21, the air ring cannot be formed, and the rotary twister 19 of the twisting apparatus provided by the present invention cannot achieve the effect of one-turn and two-turn as in a two-for-one twister. Note that fig. 3 and 4 do not show the complete magnetic attraction ring 3103 and the bracket 1804 of the twisting device, and in reality, these two components are fastened to the frame of the twisting machine using the twisting device provided by the present invention, so as to save space in the drawings of the specification and fully show the technical features reflecting the core content of the present invention, the redundant parts of the magnetic attraction ring 2103 and the bracket 1804 are removed by the double wave dotted line and the display of the whole twisting machine using the twisting device provided by the present invention is omitted. In addition, in this embodiment, as shown in fig. 3, 4 and 5, in order to reduce the resistance of the multi-strand bent yarn unwound from the yarn winder 20 penetrating into the hollow conical central shaft fixing member 2102, in this embodiment, a ceramic ring 210202 with a smooth inner wall is embedded at the upper end opening of the central shaft fixing member 2102; in order to reduce the friction between the bobbin 2001 which rotates continuously and the central shaft 21 and the friction between the bobbin 2001 and the hollow top cover 1902 of the drum 1901, in the present embodiment, as shown in fig. 3 and 4, rolling bearings 2105 are provided at both the top cover 2002 and the bottom cover 2003 of the bobbin 2001 which close the openings at the upper and lower ends of the bobbin 2001 to prevent the entry of dust, dust and fine yarn; similarly, in order to reduce the friction generated by the core component of the rotary twister 19, which drives the rotating shaft 18, in the present embodiment, as shown in fig. 3 and 4, a rolling bearing 1805 is also fitted between the rotating shaft 18 and the support 1804, and in fact, for the present embodiment, the axial supporting force of the rolling bearing 1805 is utilized to provide vertical support for the entire twisting apparatus including the rotary twister 19 and the yarn winder 20. As shown in fig. 4 and referring to fig. 3 and 5, the twisting machine of this embodiment mounted on the twisting machine has a friction driving wheel 1802 fastened thereto below the rotating shaft 18, the twisting machine of this embodiment is used to provide a driving belt 10 closely attached to the friction driving wheel 1802 and continuously moving in one direction, so that the friction driving wheel 1802 and thus the whole rotating shaft 18 are continuously rotated, solid bold line arrows and an arc arrow in fig. 4 respectively indicate the moving and rotating directions of the driving belt 10 and the friction driving wheel, as shown in fig. 3, 4 and 5, since the rotating drum 1901, the rotating disc 1904, the rotating disc fixing frame 1905 and the yarn guide block 1801 of the rotating twister 19 are all fastened to the rotating shaft 18, the above components of the rotating twister 19 in this embodiment are continuously rotated by the driving belt 10 of the twisting machine, in this embodiment, clockwise rotation is continued as shown. In this embodiment, in order to realize the differential transmission device, as shown in fig. 3, 4 and 5, a driving gear 1803 capable of driving the differential transmission device is fastened to a portion of the upper end of the rotating shaft 18 extending into the drum 1901, and the driving gear 1803 is coaxial with the rotating shaft 18 and rotates together with the rotating shaft 18; in this embodiment, the differential drive is located inside the assembly drum 1901 of the rotary twister 19 as shown in FIGS. 3, 4 and 5, the differential transmission 22 includes a first transmission gear 2201 engaged with a drive gear 1803 extending into the drum 1901, the differential transmission 22 further includes a second transmission gear 2202 coaxially and fixedly integrated with the first transmission gear 2201 as shown in fig. 3, 4 and 5, the differential gear 22 further includes a gear mounting plate 2203 for mounting the first and second transmission gears 2201 and 2202, the gear mounting plate 2203 is fastened to the central shaft 21 in this embodiment so as not to rotate with the rotary twister 19 and the winder 20, in this embodiment, the gear mounting plate 2203 is sleeved on the middle shaft 21 by its hollow portion as shown in fig. 3, 4 and 5; as shown in fig. 5 and referring to fig. 3 and 4, in this embodiment, the central axle 21 has an axial flat-milled structure 2107 thereon, and the axial flat-milled structure 2107 can be used as a spline-like structure to fasten the gear mounting plate 2203 sleeved thereon so that it cannot rotate, only the gear mounting plate 2203 is sleeved in the hollow portion of the central axle 21 and has a structure corresponding to the axial flat-milled structure 2107, which is not further described in the prior art of machinery. As shown in fig. 3, 4 and 5, the yarn winder 20 of the present embodiment further includes a driven gear 200301 fastened to the yarn winding drum 2001, the driven gear 200301 is fastened to a bottom cover 2003 of the yarn winding drum 2001 in the present embodiment, the bottom cover 2003 of the yarn winding drum 2001 is fastened to the yarn winding drum 2001 in the present embodiment, a rotation axis of the driven gear 200301 coincides with a rotation axis of the yarn winder 20, and the driven gear 200301 is engaged with the second transmission gear 2202. In this way, as shown in fig. 3, 4 and 5, the differential transmission device 22 drives the winding drum 2001, which is the core component of the yarn winder 20, to rotate in the same direction by the rotation of the rotating shaft 18 through the driving gear 1803, the first and second transmission gears and the driven gear 200301 which is fastened with the winding drum 2001 as a whole, and for this embodiment, only the gear ratios of the driving gear 1803, the first and second transmission gears and the driven gear 200301 need to be adjusted to realize different transmission ratios, that is, the differential speed between the rotating speeds of the rotary twister 19 and the winding drum 20 which rotate coaxially in the same direction. As shown in fig. 3, 4 and 5, in this embodiment, in order to improve the transmission efficiency of the differential transmission device as much as possible, a flat thrust bearing 2204 is further disposed between the second transmission gear 2202 and the gear mounting plate 2203, and a needle bearing 2106 for reducing friction between the central shaft 21 of the driving gear 2203 extending into the end portion of the rotating shaft 18 and the driving gear 2203 is disposed therebetween. In the embodiment, the differential transmission device further uses three sets of transmission gears which are uniformly distributed around the rotating axes of the rotary twister 19 and the yarn winder 20, and the uniform arrangement is favorable for the stability of transmission. The hollow top cover 1902 provided to the drum 1901 in this embodiment is primarily intended to protect the entire set of differential drives 22 within the drum 1901 from dust, moisture and fine air-suspended yarn in the workshop. Referring to fig. 3 and 4, in this embodiment, the reason why the central shaft 21 is fixed by the central shaft fixing member 2102 so as not to rotate with the bobbin 2001 is that in this embodiment, two driving gear positions of the differential transmission device 22 are both fixed indirectly by the central shaft 21 through the gear mounting plate 2203, and the central shaft fixing member 2102 using the air-separating magnetic force is as described above and as shown in fig. 2, because the conventional fixing mechanism tends to interfere with the multi-strand output from the twisting device of the similar two-for-one twister, and because the multi-strand output from the twisting device of the similar two-for-one twister rotates around the twisting device as shown in the balloon 9 of fig. 2, the space for the magnetic force to attract and fix the central shaft 21 can create a space around the central shaft for the multi-strand to rotate continuously and completely without obstacle, and for this embodiment, the space is the magnetic attraction ring 2103 and the central shaft fixing member as shown in fig. 3 and 4 A full circle of clearance between the setter 2102. Of course, there are also possible ways of implementing the differential transmission, and various exquisite and practical mechanical variable transmission devices in various industries have been developed in various ways at present.

Finally, the invention also provides a twisting machine which uses the twisting device. As described above with reference to fig. 4, the twisting machine using the twisting apparatus can conveniently integrate the doubling process and the twisting process of the conventional two-for-one twister together, and can also completely integrate the spinning and spooling processes of the driving ring spinning frame into a single twisting machine for further completion. As shown in fig. 4, only two winding devices for feeding the twisted strands to the twisting device and drawing and collecting the twisted strands from the twisting device are needed, and both winding devices are realized by a pair of winding rollers 12 in this embodiment, which is only one way of realization, and in reality, the winding devices can be completely different from the pair of winding rollers, such as the aforementioned effect of directly fastening the twisted multi-strand bobbin 6 to a roller for continuous rotation, and the effect of drawing the twisted strands from the twisting device and winding the twisted multi-strand bobbin 6 into a regular-shaped twisted multi-strand bobbin by cooperating with the traverse guide device 13 shown in fig. 1 and 4 can be realized.

In practice, as shown in fig. 4 and referring to fig. 3, a pair of winding rollers 12 for feeding a plurality of strands to the winding device of the twisting device is unwound, the strands combined from the two single-strand bobbins 1 are tied with one end of an elastic steel wire, the other end of the elastic steel wire penetrates into the rotating shaft 18 from below the rotating shaft 18 and passes through a hollow passage 1808 of the rotating shaft 18, a first passage 180101 of the yarn guide block 1801, a transverse passage 190302 at the bottom of the rotating drum 1901 and a vertical passage 190301 on the wall of the rotating drum 1901 in sequence as shown in fig. 4, and then the whole elastic steel wire is completely drawn out from the vertical passage 190301 of the rotating drum 1901 and a long length of the plurality of strands is drawn out; then, the multi-strand drawn out from the drum 1901 is manually twisted to some extent in the rotational twisting direction of the rotary twister 19 when the twister is turned on by rubbing with both hands, the long length of multi-strand yarn is then manually wound onto the winding drum 2001 in a tight manner in the winding direction of the yarn on the winding drum 2001 during the operation of the twisting machine, in a plurality of windings onto the winding drum 2001 and in such a manner that a certain tension is present in the multi-strand yarn between the winding drum 2001 and the drum 1901, the turns of the multi-strand yarn can be stacked to a certain degree so that the multi-strand yarn wound on the yarn winding drum 2001 does not easily fall off, and the multi-strand yarn can be pulled and unwound from the yarn winding drum 2001 by the winding device with a certain pulling tension, so that the tension for generating the multi-strand yarn between the yarn winding drum 2001 and the drum 1901 can make a pair of winding rollers 12 for conveying the multi-strand yarn to the twisting device clamp the multi-strand yarn with a sufficient clamping force. The elastic steel wire is then used to guide the long strand of multi-strand wires which are not wound on the winding bobbin 2001 to pass through the gap between the magnetic attraction ring 2103 and the middle shaft fastener 2103, penetrate into the porcelain ring 210202 at the upper end of the middle shaft fastener 2103, enter the yarn channel 2108 of the middle shaft 21, then pass through the second channel 180101 of the yarn guide block 1801 of the lower rotating shaft 18, and pass out of the radial channel of the turntable fixing rack 1905 below the turntable 1904, finally pass through the gap between the magnetic attraction ring 2103 and the middle shaft fastener 2103 again, and manually pass through the thread collecting ring 14 shown in fig. 4 and the pair of winding rollers 12 for collecting the twisted multi-strand wires to firmly wind the multi-strand wires on the twisting multi-strand bobbin 6. When the initial operation of the twisting machine is completed, the twisting machine can be started, and the driving belt 10 starts to continuously advance after the twisting machine is started to drive the rotating shaft 18 and the whole rotary twister 19 and the yarn winder 20 to start to operate to continuously twist the multi-strand yarns. Considering that the pair of winding rollers 12 shown in fig. 4 for feeding the strands to the rotating shaft 18 needs to adjust the clamping force of the strands not only not to obstruct the strand winding formed by the differential speed between the winder 20 and the rotary twister 19, but also to retain a suitable slight clamping force of the strands so that the strands running in the first channel 180101 of the yarn guide block 1801 will generate the aforementioned radial clamping force at the bend in the channel 180101, the clamping force between the pair of winding rollers is usually provided by a spring at present, so that it is easy to adjust the clamping force of the pair of winding rollers 12 for feeding the strands to the rotating shaft 18 as shown in the lower part of fig. 4, only by adjusting the amount of elastic deformation of the spring or selecting springs with different specifications, in fact, the better working condition of the pair of winding rollers 12 is that the speed of the rotary feeding of the strands is only slightly lower than the speed of the differential transmission device 22 for pulling the strands to be wound on the yarn winder 20, and the clamping force of the pair of winding rollers 12 for the strands is adjusted to the differential transmission device 22, so that the strands can be easily pulled and wound on the yarn winder 20 by overcoming the clamping force of the pair of winding rollers 12, and by means of the current mature motor driving technology and the aforementioned method for adjusting spring force, the rotary feeding speed of the strands of the pair of winding rollers 12 and the clamping force of the strands can be completely adjusted to the aforementioned working condition, in this way, it can be ensured that the axial tension required for the rotary twisting exists at the position of the multi-strand which is fed into the rotary twister and bent therein, so that the rotary twister can ensure the twisting effect of one-turn single twisting on the multi-strand which is fed into the rotary twister for the first time. Of course, even if the unwinding resistance to be overcome, which is required for the differential mechanism 22 to indirectly unwind the singles yarn from the singles bobbin 1, is sufficient to tension the multiple strands everywhere, it is possible to draw off the pair of winding rollers 12 shown below in fig. 4 completely by means of the difference in rotational speed between the winder 20 and the rotary twister 19 to achieve the drawing-in of the multiple strands. The speed of the gripping traction of the strands by the pair of winding rollers 12 as shown above in figure 4 during the operation of the twister needs to be finely adjusted so as to precisely control the speed of unwinding of the strands from the winder 20 to be approximately equal to the speed at which the differential transmission winds the strands from the rotary twister 19 onto the winder 20, in this way, the turns of the multi-strand yarn wound on the yarn winder 20 can generate enough friction force through winding and pressing among the multi-strand yarns to ensure that the multi-strand yarn output from the rotary twister 19 can be smoothly wound on the yarn winder 20 without slipping, and can ensure that the pulling force required for unwinding the multi-strand yarn from the yarn winder 19 is not too large, because the pulling force required for unwinding the multi-strand yarn is larger if the number of the multi-strand coils and the number of the layers of the laminated winding wound on the yarn winder 20 are too large. In summary, in actual production, it is necessary to wind enough number of strands on the yarn winder 20 at the initialization of the twisting machine to ensure that the strands wound on the yarn winder 20 are fastened to the yarn winder 20, and then it is noted that the speed of pulling and collecting the twisted strands by the winding device represented by a pair of winding rollers 12 in fig. 4 is not too fast or too slow, so as to ensure that the strands can be smoothly and continuously wound from the rotary twister 19 to the yarn winder 20, and that the twisted strands can be smoothly and continuously unwound from the yarn winder 20 by the winding device represented by a pair of winding rollers 12 in fig. 4, and the core winding drum 2001 of the yarn winder 20 is smoothly unwound as shown in fig. 3, The design of the draft shown in fig. 4 and 5 is also designed to allow relatively easy unwinding of the strands from the winder. The winding device represented by the pair of winding rollers 12 above fig. 4, in addition to acting as a power provider for unwinding the strands from the winder, actually returns the strands to the rotary twister 19 and outputs them onto the final product package represented by the twisted multi-strand package 6 in fig. 4. The purpose of finely or even dynamically adjusting the instantaneous speed at which the winding device pulls the strands off the winder 20 in operation of a twisting machine using a twisting device according to the invention, in combination with various sensors, is on the one hand to ensure that unwinding can take place smoothly without the strands being wound too thick in layers on the winder 20 and on the other hand to ensure that the strands are wound tightly on the winder 20 in sufficient number of turns or layers to ensure that the strands are wound tightly on the winder 20 and that the differential speed of coaxial co-rotation between the rotary twister 19 and the winder 20 produced by the differential transmission 22 can pull the strands off the rotary twister 19 onto the winder 20 smoothly. In the twisting machine using the twisting device provided by the present invention, the twisting effect of the multi-strand yarn can be achieved to any degree by adjusting parameters such as the transmission ratio of the differential transmission device 22, the pulling speed of the winding device for collecting the twisted multi-strand yarn to the final product bobbin represented by the twisted multi-strand bobbin 6 in fig. 4, and the rotation speed of the rotating shaft 18, and it is needless to say that changing the transmission ratio of the differential transmission device 22 may determine whether the rotation speed of the rotary twister 19 is faster than the rotation speed of the winder 20 or the rotation speed of the winder 20 is faster than the rotation speed of the rotary twister 19.

Note that the above-described embodiments are not intended to limit the embodiments of the present invention, and the shape and the like of the rotating disc 1904 in the above-described embodiments are also designed to be similar to the shape and the like of the twisting disc 8 of the spindle twisting device of the existing two-for-one twisting machine in order to facilitate the reader's understanding of the principle of the technical solution of the present invention, so that there are certainly many possibilities for the actual implementation of the present invention, and therefore any modification, equivalent replacement, conventional improvement and the like made within the technical principle of the present invention, such as replacing the bobbin in the above-described embodiments with a storage device with a yarn loop pushing function commonly used in the textile industry, or two bent pipes are used to form two bending passing channels of the stranded wires in the rotating shaft without adopting a yarn guide block, and the like, so long as the basic idea of the technical scheme is based on the invention, the two bending passing channels are included in the protection scope stated by the claims of the invention.

Claims

1. A twisting apparatus for outputting a twisted multi-strand fed thereto, the twisting apparatus comprising a twister for twisting the multi-strand and a support (1804) for mounting the twister, the twisting apparatus being characterized in that: the twister comprises a rotary twister (19) which can bend and rotate the multi-strand fed into the twisting device so as to twist the multi-strand, and the twister also comprises a yarn winder (20), and the multi-strand fed into the twisting device is wound on the yarn winder (20) after being twisted by the rotary twister (19); the yarn winder (20) can rotate continuously, the rotating yarn winder (20) is coincident with the rotating axis of the rotating twister (19) and the rotating directions of the yarn winder (20) and the rotating twister (19) are consistent but the rotating angular speeds of the yarn winder and the rotating twister are different, so that the yarn winder (20) can pull out and wind the stranded yarn from the rotating twister (19) on the yarn winder (20) or the rotating twister (19) can pull out and wind the stranded yarn on the yarn winder (19); the stranded wires wound on the yarn winding device (20) are unwound from the yarn winding device (20) and folded back to the rotary twister (19), and the stranded wires folded back to the rotary twister (19) are rotated together with the rotary twister (20) and output after at least one bending.

2. A twisting apparatus according to claim 1, wherein: the rotary twister (19) and the winder (20) are rotated together in the same direction by a differential rotary transmission device and the angular speed differential is ensured between the two.

3. A twisting apparatus according to claim 2, wherein:

the yarn winder (20) is positioned outside the rotary twister (19), the multi-strand yarn twisted by the rotary twister (19) is wound on the yarn winder (20) from the outside of the yarn winding part of the yarn winder (20), and the differential rotation transmission device is positioned inside the rotary twister (19).

4. A twisting apparatus according to claim 3, wherein:

the rotary twister (19) comprises a hollow rotating shaft (18) which is arranged on the bracket (1804) and can be driven to rotate freely, the rotary twister (19) also comprises a hollow rotary drum (1901) which is fastened with the rotating shaft (18) into a whole, and a plurality of strands fed into the rotary twister (19) pass through the hollow interior of the rotating shaft (18) and then are bent to pass through the rotating shaft (18) and then enter a yarn guide channel (1903) on the wall of the rotary drum (1901); the stranded wires penetrate out of the yarn guide channel (1903) and then are wound on the yarn winder (20);

the yarn winder (20) comprises a hollow center shaft (21) positioned on the axis of rotation of the yarn winder, and further comprises a yarn winding drum (2001) capable of freely rotating around the center shaft (21), wherein a plurality of strands which penetrate out of a yarn guide channel (1903) of the rotary drum (1901) are wound on the yarn winding drum (2001); the hollow center shaft (21) is provided with a hollow internal channel which is through axially and through which multiple strands can pass, the multiple strands wound on the yarn winding drum (2001) enter the hollow internal channel of the center shaft (21) after being unwound and are folded back to the rotary twister (19) through the hollow internal channel, and the multiple strands folded back to the rotary twister (19) enter the hollow interior of the rotating shaft (18) and are output after being bent for at least one time.

5. A twisting apparatus according to claim 4, wherein: a hollow channel (1808) which penetrates through the whole rotating shaft (18) axially is arranged in the rotating axis direction of the hollow rotating shaft (18), and the stranded wires fed into the twisting device firstly penetrate into the hollow channel (1808); a yarn guide block (1801) is fixedly inserted on the shaft body of the rotating shaft (18), two channels for multiple strands to pass through are arranged in the yarn guide block (1801), wherein an opening at one end of a first channel (180101) is butted with the hollow channel (1808) of the rotating shaft (18), the multiple strands fed into the twisting device are bent and then output to the outside of the rotating shaft (18) from an opening at the other end of the first channel (180101) to enter a yarn guide channel (1903) of the rotating drum (1901);

the middle shaft (21) is provided with a yarn channel (2108) which axially penetrates through the whole middle shaft (21), one end of the yarn channel (2108) is opened to be opposite to one end of the hollow channel (1808) of the rotating shaft (18), and a plurality of strands unwound from the yarn winding drum (2001) are folded back to enter the hollow channel (1808) of the rotating shaft (18) through the yarn channel (2108);

one end opening of a second channel (180102) in the two channels for the multiple strands to pass through of the yarn guide block (1801) is butted with the hollow channel (1808) of the rotating shaft (18) so that the multiple strands folded back to the rotating shaft (18) can penetrate into the second channel (180102), the multiple strands penetrating into the second channel (180102) are bent at least once therein and then output out of the rotating shaft (18) from the other end opening of the second channel (180102) so as to be output from the twisting device.

6. A twisting apparatus according to claim 5, wherein:

a middle shaft fixing part (2102) which is fixedly arranged at a position of the middle shaft (21) outside the yarn winding barrel (2001) and cannot rotate along with the yarn winding barrel by utilizing separated magnetic force; a driving gear (1803) which can drive the differential transmission device is fastened on the rotating shaft (18), and the driving gear is coaxial with the rotating shaft (18) and can rotate along with the rotating shaft (18); the differential transmission device comprises a first transmission gear (2201) meshed with a driving gear (1803) extending into the rotary drum (1901), and further comprises a second transmission gear (2202) coaxially and fixedly integrated with the first transmission gear (2201), the differential transmission device further comprises a gear mounting disc (2203) used for mounting the first transmission gear (2201) and the second transmission gear (2202), and the gear mounting disc (2203) is fastened on the middle shaft (21); the yarn winder (20) further comprises a driven gear (200301) which is fastened with the yarn winding barrel (2001) into a whole, the rotating axis line of the driven gear (200301) is overlapped with the rotating axis line of the yarn winder (20), and the driven gear (200301) is meshed with the second transmission gear (2202).

7. A twisting machine, characterized in that the twisting machine uses a twisting device according to claim 1.