阅读说明：本技术 一种用于针织布生产的混合纺纱机构及加工工艺 (Mixed spinning mechanism for knitted fabric production and processing technology ) 是由 蔡俊明 谢丽华 吴文集 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种用于针织布生产的混合纺纱机构及加工工艺,包括纺纱组件和自动络筒机,自动络筒机包括底座和支架,两组支架相互贴近一侧均转动连接有转轴,转轴的外侧壁一端设置有纱线导向座,纱线导向座的外壁连接有若干组弧形压板,转轴外壁设置有支座,支座靠近纱线导向座一侧滑动设置有若干组夹持座,弧形压板与夹持座之间安装有络筒,滑动杆件与固定杆的外侧壁设置有弹簧,支座远离夹持座一端设置有若干组支承组件,支承组件相互靠近一端转动连接有调节组件,还提供了相关工艺,本发明公开的一种简化了络筒安装和拆卸的步骤,增强了纱线络筒随转轴转动的稳定性,并通过相关工艺提高了针织面料的透气性。(The invention discloses a mixed spinning mechanism for producing knitted fabrics and a processing technology, comprising a spinning assembly and an automatic winder, wherein the automatic winder comprises a base and supports, two groups of supports are close to one side and are rotatably connected with a rotating shaft, one end of the outer side wall of the rotating shaft is provided with a yarn guide seat, the outer wall of the yarn guide seat is connected with a plurality of groups of arc-shaped pressing plates, the outer wall of the rotating shaft is provided with a support, one side of the support, which is close to the yarn guide seat, is provided with a plurality of groups of clamping seats in a sliding way, windings are arranged between the arc-shaped pressing plates and the clamping seats, the outer side walls of a sliding rod piece and a fixed rod are provided with springs, one end of the support, which is far away from the clamping seats, is provided with a plurality of groups of supporting assemblies, one end, which is close to one end, of the support assemblies, is rotatably connected with an adjusting assembly, and the related technology is also provided, the steps of mounting and dismounting of the windings are simplified, and the stability of the windings rotating along with the rotating shaft is enhanced, and the air permeability of the knitted fabric is improved through the related process.)

1. A mix spinning mechanism for looped fabric production, includes spinning unit and automatic cone winder, its characterized in that: the automatic winder comprises a base (1) and supports (2) positioned on two sides of the upper end face of the base (1), and two groups of screw rod assemblies (22) with opposite movement directions are arranged between the two groups of supports (2);

one side, close to each other, of each of the two groups of the supports (2) is rotatably connected with a rotating shaft (21), one end of the outer side wall of each rotating shaft (21) is provided with a yarn guide seat (3), the outer wall of each yarn guide seat (3) is connected with a plurality of groups of arc-shaped pressing plates (32) through a sliding rod piece (31), the outer wall of each rotating shaft (21) is provided with a support (4), one side, close to the yarn guide seats (3), of each support (4) is provided with a plurality of groups of clamping seats (42) in a sliding mode through a fixing rod (41), a winding (5) is installed between each arc-shaped pressing plate (32) and each clamping seat (42), each winding (5) is sleeved on the outer side wall of each group of the supports (4), and the outer side walls of each sliding rod piece (31) and each fixing rod (41) are provided with a spring (9);

one end, far away from the clamping seat (42), of the support (4) is provided with a plurality of groups of supporting components (43) acting on the inner wall of the winding (5), and one ends, close to each other, of the supporting components (43) are rotatably connected with adjusting components (6).

2. A hybrid spinning mechanism for the production of knitted fabrics, according to claim 1, characterized in that:

the supporting assembly (43) comprises supporting columns (431) arranged at opposite angles of the support (4), supporting rods (432) are rotatably connected to the top ends of the supporting columns (431), and connecting frames (433) are arranged on the outer side walls of the supporting rods (432).

3. A hybrid spinning mechanism for the production of knitted fabrics, according to claim 2, characterized in that:

an elastic pressing plate (434) abutted against the inner wall of the bobbin (5) is arranged at one end, away from the support column (431), of the support rod (432).

4. A hybrid spinning mechanism for the production of knitted fabrics, according to claim 2, characterized in that:

adjusting part (6) including set up in stand (61) of both ends face about support (4), the lateral wall sliding connection of stand (61) has slider (62), the both sides of slider (62) be provided with supporting rod (432) rotate first telescopic link (63) of being connected, just the stiff end of first telescopic link (63) with be provided with between slider (62) connecting spring (64).

5. A hybrid spinning mechanism for knitted fabric production according to claim 4, characterized in that:

the upper end and the lower end of the support (4) are rotatably connected with electric push rods (7), and the movable ends of the electric push rods (7) are rotatably connected with the fixed ends of the first telescopic rods (63).

6. A hybrid spinning mechanism for knitted fabric production according to claim 5, characterized in that:

the movable end of the first telescopic rod (63) is rotatably connected with one end, far away from the electric push rod (7), of the connecting frame (433).

7. A hybrid spinning mechanism for the production of knitted fabrics, according to claim 1, characterized in that:

the arc-shaped pressing plate (32) and the clamping seat (42) are positioned inside the yarn guide seat (3), and the arc-shaped pressing plate (32) and the clamping seat (42) are respectively abutted against the inner wall and the outer wall of the bobbin (5).

8. A hybrid spinning mechanism for the production of knitted fabrics, according to claim 2, characterized in that:

keep away from link (433) adjusting part (6) one end is rotated and is connected with second telescopic link (8), and the expansion end of second telescopic link (8) with link (433) rotate and are connected.

9. A hybrid spinning process for knitted fabric production is characterized in that: the method comprises the following steps:

(1) a blowing procedure: feeding polylactic acid fibers which are opened by a plucker into the cotton opener, feeding the polylactic acid fibers by a vibrating cotton box feeder, processing by a single beater scutcher, and finally beating front rolls, wherein the scutching process mainly aims at full opening and minimizes the damage to the fibers, the cotton opener selects a comb needle scutcher, the speed is controlled to be below 500r/min, the comprehensive scutcher speed for coiling is reduced to be below 750r/min, and the plucker, the mixed scutcher, a multi-bin mixed cotton machine, the cotton opener, the vibrating cotton box feeder and the single beater scutcher are used for processing bamboo fibers, wherein the full opening is mainly adopted in the process, the fiber damage is reduced, the speed of the cotton opener is controlled to be below 500r/min, and the comprehensive scutcher speed for coiling is reduced to be below 750 r/min;

(2) cotton carding process: setting the temperature to be 20-25 ℃ and the relative humidity to be 60-65%, and carding the polylactic acid fibers and the bamboo fibers by a carding machine;

(3) drawing: setting the temperature to be 20-25 ℃ and the relative humidity to be 60-65%, pre-blending the polylactic acid fibers and the bamboo fibers respectively, ensuring the blending ratio to be uniform and stable, controlling the sliver discharging speed to be 210m/min respectively, mixing the pre-blended polylactic acid fibers and the bamboo fibers for three times, and controlling the press roll speed to be less than 1200 r/min;

(4) coarse sand working procedure: setting the temperature to be 20-25 ℃, the relative humidity to be 60-65%, controlling the dry basis weight to be 5.0g/10m, the drafting gauge length to be 11 multiplied by 26 multiplied by 34, the total drafting/back drafting multiple to be 7.0/1.27, the jaw to be 5.0mm, the twist degree/twist coefficient to be 2.962/69, controlling the ingot speed to be 471r/min and the front roller speed to be 186 r/min;

(5) fine sand procedure: setting parameters of the polylactic acid fiber/bamboo fiber 60/40 with the ration of 1.402g/100m, the air pressure of 0.12MPa, a ring PG 14254, a steel wire ring EL 15/0, the drafting gauge of 18 multiplied by 64, the total drafting/back drafting multiple of 35.6/1.24, a back pressure bar used for a jaw and a 2.5mm common jaw, controlling the ingot speed at 11898r/min and the rotating speed of a front roller at 166 r/min;

(6) self-complexation procedure: the speed of the winding (5) is set to 1000 r/min.

10. A hybrid spinning process for the production of knitted fabrics, according to claim 9, characterized by the fact that:

in the blowing process, the type of a plucker is FA002, the type of a mixed opener is FA016A, the type of a multi-bin mixed cotton machine is FA022-6, the type of an opener is FA106B, the type of a vibrating hopper cotton feeder is FA046A, and the type of a single beater scutcher is A076F; in the cotton carding process, the type of the adopted cotton carding machine is FA 201B; in the drawing process, the model of the drawing frame adopted is FA 317A; in the roving process, the model of the adopted roving machine is FA 415A; the spinning machine used in the spinning step was EJM128K, and the automatic winder used in the auto-winding step was village No. 21C.

Technical Field

The invention relates to the technical field of spinning devices and processing technologies, in particular to a hybrid spinning mechanism and a processing technology for knitted fabric production.

Background

Along with the continuous change of the textile production pattern, how to improve the market competitiveness and the value of products of textile enterprises is one of the important problems faced by the current domestic textile enterprises, and along with the continuous improvement of the consumption level and consciousness of people, functional fibers with comfort, environmental protection, regeneration and the like are favored by the market.

The polylactic acid fiber is prepared by taking starch of crops such as corn, wheat and the like as a raw material, fermenting the starch into lactic acid by microorganisms, and then polymerizing and melt-spinning the lactic acid; due to the action of microorganisms, wastes can be decomposed to generate water and carbonic acid gas, the water and carbonic acid gas can generate initial raw material starch through photosynthesis in the sun, and the starch is the raw material of polylactic acid, so that the sustainable utilization of resources is realized, and the method has important significance and value for comprehensively utilizing the resources and reducing the environmental pollution.

The polylactic acid fiber has the characteristics of excellent hygroscopicity, air permeability, wrinkle resistance, better hydrophilicity, lower density, higher rebound resilience, crimpability and memory ability, better antibacterial and mildew resistance and biocompatibility, low flammability, no smoke formation, ultraviolet light resistance and the like.

Bamboo fiber is a regenerated cellulose fiber, which is prepared by taking bamboo as a raw material, purifying the bamboo fiber with the fiber content of about 35 percent in the bamboo to 93 percent through artificial catalysis, refining the bamboo fiber into bamboo pulp capable of meeting the production requirement by adopting a hydrolysis-alkali method and multi-section bleaching, and then dissolving and releasing the bamboo pulp to spin the bamboo pulp into fiber; the bamboo fiber has porous cross section, so that it has excellent moisture absorbing and releasing performance, high permeability, antibiotic performance, ultraviolet ray preventing performance and other features.

After various textile fibers are processed into yarns, the yarns are wound into knotless cone yarns through a winding machine, and the winding machine is used as the last process of spinning and the first process of weaving and plays a role of bearing a bridge from top to bottom; the existing bobbin winder is complex in assembly structure, so that the bobbin dismounting steps are complex, and the later-period bobbin dismounting operation and maintenance are inconvenient.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the spinning device which is simple and convenient to assemble and disassemble and can enhance the stability of yarn winding, and the air permeability of the knitted fabric is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a mixed spinning mechanism for knitted fabric production, which comprises a spinning assembly and an automatic winder, wherein the automatic winder comprises a base and supports positioned on two sides of the upper end surface of the base, and two groups of screw rod assemblies with opposite movement directions are arranged between the two groups of supports;

the two groups of supports are rotatably connected with a rotating shaft on one side close to each other, a yarn guide seat is arranged at one end of the outer side wall of the rotating shaft, the outer wall of the yarn guide seat is connected with a plurality of groups of arc-shaped pressing plates through sliding rod pieces, a support is arranged on the outer wall of the rotating shaft, a plurality of groups of clamping seats are arranged on one side, close to the yarn guide seat, of the support in a sliding mode through fixing rods, a winding is arranged between each arc-shaped pressing plate and each clamping seat, the winding is sleeved on the outer side walls of the two groups of supports, and springs are arranged on the outer side walls of the sliding rod pieces and the fixing rods;

and one end of the support, which is far away from the clamping seat, is provided with a plurality of groups of supporting components acting on the inner wall of the bobbin winder, and one ends, which are close to each other, of the supporting components are rotatably connected with adjusting components.

The invention preferably adopts the technical scheme that the supporting assembly comprises supporting columns arranged at opposite angles of the support, supporting rods are rotatably connected to the top ends of the supporting columns, and the outer side walls of the supporting rods are arranged on the connecting frame.

The invention preferably adopts the technical scheme that one end of the supporting rod, which is far away from the supporting column, is provided with an elastic pressing plate which is abutted against the inner wall of the bobbin.

The invention has the preferable technical scheme that the adjusting assembly comprises upright columns arranged on the upper end surface and the lower end surface of the support, the outer side wall of each upright column is connected with a sliding piece in a sliding manner, first telescopic rods rotatably connected with the supporting rods are arranged on two sides of each sliding piece, and a connecting spring is arranged between the fixed end of each first telescopic rod and each sliding piece.

The invention preferably adopts the technical scheme that the upper end part and the lower end part of the support are rotatably connected with electric push rods, and the movable ends of the electric push rods are rotatably connected with the fixed ends of the first telescopic rods.

The invention has the preferable technical scheme that the movable end of the first telescopic rod is rotatably connected with one end of the connecting frame, which is far away from the electric push rod.

The invention has the preferable technical scheme that the arc-shaped pressing plate and the clamping seat are positioned inside the yarn guide seat, and the arc-shaped pressing plate and the clamping seat are respectively abutted against the inner wall and the outer wall of the bobbin winder.

The invention has the preferable technical scheme that one end of the connecting frame, which is far away from the adjusting component, is rotatably connected with a second telescopic rod, and the movable end of the second telescopic rod is rotatably connected with the connecting frame.

A hybrid spinning process for the production of knitted fabrics, comprising the following steps:

a blowing procedure: feeding polylactic acid fibers which are opened by a plucker into the cotton opener, feeding the polylactic acid fibers by a vibrating cotton box feeder, processing by a single beater scutcher, and finally beating front rolls, wherein the scutching process mainly aims at full opening and minimizes the damage to the fibers, the cotton opener selects a comb needle scutcher, the speed is controlled to be below 500r/min, the comprehensive scutcher speed for coiling is reduced to be below 750r/min, and the plucker, the mixed scutcher, a multi-bin mixed cotton machine, the cotton opener, the vibrating cotton box feeder and the single beater scutcher are used for processing bamboo fibers, wherein the full opening is mainly adopted in the process, the fiber damage is reduced, the speed of the cotton opener is controlled to be below 500r/min, and the comprehensive scutcher speed for coiling is reduced to be below 750 r/min;

cotton carding process: setting the temperature at 20-25 ℃ and the relative humidity at 60-65%, and carding the polylactic acid fiber and the bamboo fiber by a carding machine.

Drawing: setting the temperature to be 20-25 ℃ and the relative humidity to be 60-65%, pre-blending the polylactic acid fibers and the bamboo fibers respectively, ensuring the blending ratio to be uniform and stable, controlling the sliver discharging speed to be 210m/min respectively, mixing the pre-blended polylactic acid fibers and the bamboo fibers for three times, and controlling the press roll speed to be less than 1200 r/min;

coarse sand working procedure: setting the temperature to be 20-25 ℃, the relative humidity to be 60-65%, controlling the dry basis weight to be 5.0g/10m, the drafting gauge length to be 11 multiplied by 26 multiplied by 34, the total drafting/back drafting multiple to be 7.0/1.27, the jaw to be 5.0mm, the twist degree/twist coefficient to be 2.962/69, controlling the ingot speed to be 471r/min and the front roller speed to be 186 r/min;

fine sand procedure: setting parameters of the polylactic acid fiber/bamboo fiber 60/40 with the ration of 1.402g/100m, the air pressure of 0.12MPa, a ring PG 14254, a steel wire ring EL 15/0, the drafting gauge of 18 multiplied by 64, the total drafting/back drafting multiple of 35.6/1.24, a back pressure bar used for a jaw and a 2.5mm common jaw, controlling the ingot speed at 11898r/min and the rotating speed of a front roller at 166 r/min;

self-complexation procedure: the winding speed is set to be 1000 r/min.

The invention has the preferable technical scheme that in the blowing process, the cotton plucker has the model of FA002, the mixed cotton opener has the model of FA016A, the multi-bin mixed cotton opener has the model of FA022-6, the cotton opener has the model of FA106B, the vibrating hopper cotton feeder has the model of FA046A, and the single beater scutcher has the model of A076F; in the cotton carding process, the type of the adopted cotton carding machine is FA 201B; in the drawing process, the model of the drawing frame adopted is FA 317A; in the roving process, the model of the adopted roving machine is FA 415A; the spinning machine used in the spinning step was EJM128K, and the automatic winder used in the auto-winding step was village No. 21C.

The invention has the beneficial effects that: according to the bobbin winder, the clamping seat and the arc-shaped pressing plate are matched with the elasticity of the spring to clamp and fix two ends of the bobbin, when the rotating shaft drives the yarn guide seat to rotate, the bobbin can rotate along with the rotation of the yarn guide seat to work, the electric push rod drives the first telescopic rod and the sliding piece to move along the outer wall of the upright post when the bobbin is installed, the connecting frame drives the supporting rod to rotate around the supporting post, the elastic pressing plate tightly presses the inner wall of the bobbin, the bobbin is supported and stabilized, the bobbin can be kept stable all the time in the working process, the mounting and dismounting steps are simple and easy to operate, the problem that the bobbin cannot meet the market use requirements due to high difficulty in dismounting and mounting is solved, great convenience is provided for later-stage bobbin maintenance and dismounting, and high efficiency, high stability and high safety of bobbin dismounting are guaranteed.

The spinning device provided by the invention is simple and convenient to assemble and disassemble, the stability of yarn spooling is enhanced, and the air permeability of the knitted fabric is improved.

Drawings

FIG. 1 is a schematic view of a partial structure of a winder provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a spinning guide provided in an embodiment of the present invention;

FIG. 3 is a schematic diagram of the structure of the adjustment assembly and spools provided in the preferred embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a base; 2. a support; 21. a rotating shaft; 22. a screw assembly; 3. a yarn guide seat; 31. a slide bar; 32. an arc-shaped pressing plate; 4. a support; 41. fixing the rod; 42. a clamping seat; 43. a support assembly; 431. a support column; 432. a support rod; 433. a connecting frame; 434. an elastic pressure plate; 5. spooling; 6. an adjustment assembly; 61. a column; 62. a slider; 63. a first telescopic rod; 7. an electric push rod; 8. a second telescopic rod; 9. a spring.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

A mixed spinning mechanism for knitted fabric production comprises spinning components and an automatic winder, wherein the automatic winder comprises a base 1 and supports 2 positioned on two sides of the upper end face of the base 1, two groups of screw rod components 22 with opposite movement directions are arranged between the two groups of supports 2, the two groups of supports 2 are mutually close to one side and are rotatably connected with a rotating shaft 21, one end of the outer side wall of the rotating shaft 21 is provided with a yarn guide seat 3, the outer wall of the yarn guide seat 3 is connected with a plurality of groups of arc-shaped pressing plates 32 through sliding rod members 31, the outer wall of the rotating shaft 21 is provided with a support 4, one side of the support 4 close to the yarn guide seat 3 is provided with a plurality of groups of clamping seats 42 in a sliding mode through fixing rods 41, a bobbin 5 is arranged between the arc-shaped pressing plates 32 and the clamping seats 42, the bobbin 5 is sleeved on the outer side walls of the two groups of support 4, and the outer side walls of the sliding rod members 31 and the fixing rods 41 are provided with springs 9, a plurality of groups of supporting components 43 acting on the inner wall of the winding 5 are arranged at one end of the support 4, which is far away from the clamping seat 42, one end of each supporting component 43, which is close to each other, is rotatably connected with an adjusting component 6, the winding 5 is sleeved outside the rotating shaft 21 of the support 2 at one side, one end of the winding 5 is arranged in the arc-shaped pressing plate 32 and the clamping seat 42 in the yarn guide seat 3, one end of the winding 5 is fixedly clamped under the elastic force of a spring 9, meanwhile, the adjusting component 6 on the support 4 at the outer side wall of the rotating shaft 21 is matched with the rotation of the supporting components 43, the supporting components 43 act and are abutted against the inner wall of one end of the winding 5, the support 2 at the other side is driven to move by the screw rod component 22, the rotating shaft 21 at the other side is arranged in the winding 5, the arc-shaped pressing plate 32 and the clamping seat 42 at the other side clamp the other end of the winding 5, and the adjusting component 6 on the support 4 at the outer side wall of the rotating shaft 21 of the support 2 at the other side is matched with the rotation of the supporting components 43, the supporting component 43 acts and abuts against the inner wall of the other end of the winding 5, the rotating shaft 21 is driven to rotate by the motor, the two ends of the winding 5 are clamped and fixed in the yarn guide seat 3 and are stably supported by the supporting component 43, the rotating shaft 21 rotates and simultaneously drives the yarn guide seat 3 and the support seat 4 to rotate, the winding 5 clamped and fixed by the yarn guide seat 3 rotates along with the rotation of the yarn guide seat 3 and the support seat 4 under the stable support of the supporting component 43, the stability and the safety of the winding 5 in the working process are improved due to the effect of the supporting component 43 at the two ends matched with the arc-shaped pressing plate 32 and the clamping seat 42 to clamp the winding, the winding 5 is kept stable in the using process all the time, the mounting process is simple in steps and easy to operate, the problem that the winding 5 cannot be assembled and disassembled easily and the market using requirements is solved, the maintenance and the disassembly of the later-stage winding 5 are greatly facilitated, and the high efficiency, the high stability and the high safety of the dismounting of the winding 5 are ensured.

As a possible embodiment of the present invention, it is preferable that the supporting assembly 43 includes a supporting column 431 disposed at a diagonal position of the support 4, a supporting rod 432 is rotatably connected to a top end of the supporting column 431, a connecting frame 433 is disposed on an outer side wall of the supporting rod 432, the adjusting assembly 6 is rotatably connected to an end of the connecting frame 433, and due to the fixed size of the supporting assembly 43, the adjusting assembly 6 drives the supporting rod 432 to rotate around the end of the supporting column 431 through the connecting frame 433 during the adjusting process until the end of the supporting rod 432 is supported on an inner wall of the winding 5, so as to stably support the winding 5, and the winding 5 keeps stable operation during the rotating process.

As one possible embodiment of this aspect, it is preferable that an elastic pressing plate 434 abutting against the inner wall of the winding bobbin 5 is provided at one end of the support rod 432 away from the support column 431, and the action area and the support force for supporting the winding bobbin 5 are increased by the action of the elastic pressing plate 434, so that the stability of the winding bobbin 5 during operation is further improved, and the stable operation state of the winding bobbin 5 is always maintained.

As a possible implementation manner of the present disclosure, preferably, the adjusting assembly 6 includes a vertical column 61 disposed on both upper and lower end surfaces of the support 4, a sliding member 62 is slidably connected to an outer sidewall of the vertical column 61, first telescopic rods 63 rotatably connected to the support rods 432 are disposed on both sides of the sliding member 62, a connecting spring 64 is disposed between a fixed end of the first telescopic rod 63 and the sliding member 62, when the sliding member 62 slides upwards along an outer wall of the vertical column 61, under an elastic force of the connecting spring 64, a movable end of the first telescopic rod 63 drives the connecting frames 433 on both sides to move, so that the support rod 432 rotates around the support column 431 until the elastic pressing plate 434 abuts against and supports an inner wall of the windings 5, and under a combined action of the elastic pressing plate 434, the connecting spring 64 and the first telescopic rod 63, a supporting action is provided for the inner wall of the windings 5, so that the spool can always work stably, and when the sliding part 62 moves reversely, the supporting effect on the spool 5 can be released, and then the spool 5 can be easily dismounted, thereby improving the convenience for later dismounting and maintenance and saving time.

As a possible embodiment of the present disclosure, preferably, the upper and lower end portions of the support 4 are rotatably connected to electric push rods 7, and the movable end of the electric push rod 7 is rotatably connected to the fixed end of the first telescopic rod 63, so that the electric push rod 7 provides a power support for the first telescopic rod 63, the first telescopic rod 63 and the sliding member 62 slide up and down along the outer side wall of the upright post 61, and the effect of the supporting rod 432 and the elastic pressing plate 434 on the windings 5 is controlled, thereby improving the convenience of mounting and dismounting the windings 5, and solving the problem that the mounting and dismounting difficulty of the windings 5 is high and the use requirements of the winding market cannot be met.

As a possible implementation manner of the present disclosure, preferably, the movable end of the first telescopic rod 63 is rotatably connected to one end of the connecting frame 433, which is far away from the electric push rod 7, and during the up-and-down movement process of the first telescopic rod 63, the first telescopic rod and the connecting frame 433 do not interfere with each other while driving the supporting rod 432 to rotate, so that the rotation of the supporting rod 432 can be realized while the first telescopic rod 63 is ensured to move.

As a possible embodiment of this solution, preferably, the arc pressing plate 32 and the clamping seat 42 are located inside the yarn guiding seat 3, and the arc pressing plate 32 and the clamping seat 42 respectively abut against the inner wall and the outer wall of the winding 5, under the elastic force of the spring 9, the arc pressing plate 32 can press the outer wall of the winding 5, the clamping seat 42 can press the inner wall of the winding 5, and the inner wall and the outer wall are clamped and fixed by clamping the winding 5, so that the winding 5 can stably rotate along with the rotation of the yarn guiding seat 3 while the yarn guiding seat 3 rotates.

As a possible embodiment of the present invention, preferably, one end of the connecting frame 433 far from the adjusting assembly 6 is rotatably connected with a second telescopic rod 8, and the movable end of the second telescopic rod 8 is rotatably connected with the connecting frame 433, when the first telescopic rod 63 drives the supporting rod 432 to rotate towards the direction close to the first telescopic rod 63 through the connecting frame 433, the movable end of the second telescopic rod 8 connected with the other end of the connecting frame 433 moves along the direction far from the fixed end of the second telescopic end 8 along with the rotation of the connecting frame 433, when the first telescopic rod 63 drives the supporting rod 432 to rotate towards the direction far from the first telescopic rod 63 through the connecting frame 433, the movable end of the second telescopic rod 8 connected with the other end of the connecting frame 433 moves along the direction close to the fixed end of the second telescopic end 8 along with the rotation of the connecting frame 433, so as to improve the stable operation of the supporting assembly 43, further improve the stable supporting effect of the supporting assembly 43 on the windings 5, provides more powerful guarantee for the stable work of the bobbin 5.

A hybrid spinning process for the production of knitted fabrics, comprising the following steps:

(1) a blowing procedure: feeding polylactic acid fibers which are opened by a plucker into the cotton opener, feeding the polylactic acid fibers by a vibrating cotton box feeder, processing by a single beater scutcher, and finally beating front rolls, wherein the scutching process mainly aims at full opening and minimizes the damage to the fibers, the cotton opener selects a comb needle scutcher, the speed is controlled to be below 500r/min, the comprehensive scutcher speed for coiling is reduced to be below 750r/min, and the plucker, the mixed scutcher, a multi-bin mixed cotton machine, the cotton opener, the vibrating cotton box feeder and the single beater scutcher are used for processing bamboo fibers, wherein the full opening is mainly adopted in the process, the fiber damage is reduced, the speed of the cotton opener is controlled to be below 500r/min, and the comprehensive scutcher speed for coiling is reduced to be below 750 r/min;

(2) cotton carding process: setting the temperature at 20-25 ℃ and the relative humidity at 60-65%, and carding the polylactic acid fiber and the bamboo fiber by a carding machine.

(3) Drawing: setting the temperature to be 20-25 ℃ and the relative humidity to be 60-65%, pre-blending the polylactic acid fibers and the bamboo fibers respectively, ensuring the blending ratio to be uniform and stable, controlling the sliver discharging speed to be 210m/min respectively, mixing the pre-blended polylactic acid fibers and the bamboo fibers for three times, and controlling the press roll speed to be less than 1200 r/min;

(4) coarse sand working procedure: setting the temperature to be 20-25 ℃, the relative humidity to be 60-65%, controlling the dry basis weight to be 5.0g/10m, the drafting gauge length to be 11 multiplied by 26 multiplied by 34, the total drafting/back drafting multiple to be 7.0/1.27, the jaw to be 5.0mm, the twist degree/twist coefficient to be 2.962/69, controlling the ingot speed to be 471r/min and the front roller speed to be 186 r/min;

(5) fine sand procedure: setting parameters of the polylactic acid fiber/bamboo fiber 60/40 with the ration of 1.402g/100m, the air pressure of 0.12MPa, a ring PG 14254, a steel wire ring EL 15/0, the drafting gauge of 18 multiplied by 64, the total drafting/back drafting multiple of 35.6/1.24, a back pressure bar used for a jaw and a 2.5mm common jaw, controlling the ingot speed at 11898r/min and the rotating speed of a front roller at 166 r/min;

(6) self-complexation procedure: the speed of the winding 5 is set to 1000 r/min.

The bamboo fiber has the characteristics of good comfort, good moisture absorption drapability, moisture absorption, ventilation, antibacterial function, health care, ultraviolet resistance, radiation protection, good electrical conductivity and the like, but the cohesion is poor, and the polylactic acid fiber has better crimpability and crimping durability, so that the polylactic acid fiber and the bamboo fiber are complementary in short points and can be combined with each other in advantages to develop blended yarns with excellent performance.

As a possible implementation manner of the scheme, it is preferable that in the blowing process, the type of the plucker is FA002, the type of the mixed opener is FA016A, the type of the multi-bin mixed opener is FA022-6, the type of the opener is FA106B, the type of the vibrating hopper feeder is FA046A, and the type of the single beater scutcher is a 076F; in the cotton carding process, the type of the adopted cotton carding machine is FA 201B; in the drawing process, the model of the drawing frame adopted is FA 317A; in the roving process, the model of the adopted roving machine is FA 415A; the spinning machine used in the spinning step was EJM128K, and the automatic winder used in the auto-winding step was village No. 21C.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.