CN104651991A

CN104651991A - Non-scraping false twisting method and device

Info

Publication number: CN104651991A
Application number: CN201310606361.6A
Authority: CN
Inventors: 于淼; 张娅
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-19
Filing date: 2013-11-19
Publication date: 2015-05-27

Abstract

The invention relates to a spinning method for achieving single-stranded ring spun yarns and a false twisting device The false twisting device is mounted between a roller jaw and a yarn guide hook; a rolling twisting roller with a special design surface is specially arranged to enable synchronous false twisting of the yarns and yarn conveying, and therefore, the non-scraping twisting can be reached. The method has the yarn forming quality superior to that of all current methods; the device is arranged at a leading board without influencing the operations of spinning of a machinist such as connecting.

Description

False twisting method and device is smoothed out with the fingers without scraping

Technical field:

The present invention relates to a kind of spinning method and the false-twisting device that realize sub-thread ring spun yarn.Belong to both non-clustered formula compact spinning or low turning round is spun.

Background technology:

Produce compact yarn and the low technology turning round yarn from principle point centralization type and both non-clustered formula, centralization type is mainly used in compact spinning aspect, the relative maturity of development, but it can not be used for low turning round and spins.Both non-clustered formula is that a kind of compact spinning that both can be used for also may be used for lowly turning round the technology spun, and start late, but growth momentum is fine.

Provide a kind of both non-clustered formula method of novelty in application number 201210011931.2 bright yarn spinning method for genuine, yarn index is significantly improved.Because power obtains and structure restriction, false-twisting device must near front roller, and this just causes following deficiency: the first, affect sight line during spinner's joint, and joint is inconvenient; The second, this structure is a set of twins of two ingots, and when joint lifts an ingot, an other ingot is also lifted, and this time period two ingot all can spin one section of non-bright yarn; Three, afterturn curtailment, during adjustment parameter, all indexs are interfered mutually, affect yarn index.

Application number 200910161586.9 can the good yarn of the quality of production for the technology that provides of method and apparatus producing bending false twisting on ring spun yarn line, but because it adopts convolution belt to roll the way of stone roller, find after using, during Yarn connecting, need the belt through motion, very inconvenient.

It is vertical with yarn direction of advance that above-mentioned two kinds of method common drawback twist element afterturn direction exactly, there will be afterturn element and scrape and smooth out with the fingers yarn phenomenon, scraped fibre-glide, the accumulation of the yam surface of smoothing out with the fingers, cause yarn evenness variation, details, cotton knot severe exacerbation.In order to influence each other with regard to index, ensure good overall target, must adjusting process repeatedly, add technical difficulty and increase workload.

In order to overcome above shortcoming, application number 201310091686.5 applied the method for false twisting and the installation optimization speed of two belts to yarn before ring spinning, make that bar is dry, cotton knot makes moderate progress, but all there is not deterioration by yarn index before this device, and the twist reduce neither be very large, brute force is not high yet.

Cross(ed) belt false twisting method, should solve false twisting element preferably and scrape the shortcoming of smoothing out with the fingers yarn, but spinning operation is very inconvenient, so far there are no commercialized product.

Goal of the invention:

In order to overcome the deficiency of application 201210011931.2, application number 200910161586.9 and application number 201310091686.5, provide one: not only having eliminated afterturn element smoothes out with the fingers but also be easy to realize on existing fine spining machine to scraping of yarn, does not affect false twisting method and the device of spun yarn operation.

The present invention's adopted technical scheme of dealing with problems comprises two aspects: false twisting method and device.

False twisting method: passed through before the twisting of ring ingot from the fibre bundle of front roller nip output and twist with the fingers roller surface close contact with it around rolling of own axis, roll and twist with the fingers roll axis and the angled layout of yarn, yarn is coupled with false twisting along surface synchronization advance with also rolling, and does around yarn without scraping to smooth out with the fingers and rolled by filoplume.

Rolling and twisting with the fingers roller is dumbbell shaped rotary body, ensures stability during Yarn twisting, and according to different process needs, dumbbell two ends size can be different;

Rolling and twisting with the fingers roller standard profile is the hyperboloid of one sheet, and yarn is parallel with rotary body bus, to improve false twisting efficiency.

Rolling sth. made by twisting roller surface can make the contact force on yarn and rotary body surface increase gradually along yarn direction of advance for compound curved surface, is conducive to the raising of yarn quality.

Implement the false-twisting device of above-mentioned false twisting method: a hyperboloid of one sheet profile is rolled sth. made by twisting roller, is placed between front roller nip and twizzle, make its bus parallel near yarn, rotate about the axis.Suitable design, adjustment relevant parameters, always can make this section of yarn only not have relative sliding rolling sth. made by twisting roller surface scrolls in the process of advancing, and just eliminates afterturn element and smooth out with the fingers scraping of yarn when twisting.Change roll twist with the fingers roll shape, rotating speed, installation site and with the parameter such as yarn contacts pressure distribution, adjustable yarn quality and be suitable for different yarns kind.Beneficial effect of the present invention:

Be adapted to the new machine of all ring throstles and improving old machine, applied range.Sight line is not blocked during joint, more convenient to operate.Yarn filoplume, brute force and other indexs are all better than present compact spinning or low turning round is spun.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described

Fig. 1 is in the face of fine spining machine viewing: yarn twists with the fingers roller relative position schematic diagram with rolling;

Fig. 2 twist principle analyzes schematic diagram;

Fig. 3 belt transmission false-twisting device schematic diagram (side);

Fig. 4 motor---roll and twist with the fingers roller one false-twisting device schematic diagram (side);

Fig. 5 profile is that the standard type of the hyperboloid of one sheet rolls sth. made by twisting roller schematic diagram;

Fig. 6 profile is that the modified of composite curve rolls sth. made by twisting roller schematic diagram;

Fig. 7 profile is composite curve is that asymmetrical modified rolls sth. made by twisting roller schematic diagram up and down.

In figure

1--spool; 2--ballooning of yarn; 3--twizzle; 4--driven pulley; 5--rolls sth. made by twisting roller; 6--rolls sth. made by twisting roll shaft; 7--yarn; 8--suction tube; 9--front roller; 10--front leather roller; 11--middle roller; 12--medium rubber roller; Roller after 13--; 14--rear roller; The short apron of 15--; 16--skin circle; 17--belt; 18--driving wheel; 19--fine spining machine rail; 20--motor belt; 21--motor; 22--controller; 23--rolls sth. made by twisting roller motor; 24--control line; 25--Yarn filoplume.

Be observe to roll in the face of fine spining machine to twist with the fingers roller 5 relatively yarn 7 location drawing in Fig. 1, yarn 7 twists with the fingers the parallel and close contact of roller 5 bus with rolling, and yarn is with speed V _yarnadvance..Roll and twist with the fingers roller 5 and rotate around axle 6, two component velocities can be resolved into institute's speed a little of yarn contacts, give Yarn twisting for one, one and yarn advanced in unison, yarn 7 and and roll to twist with the fingers between roller 5 and there is no relative sliding, just eliminate to scrape and smooth out with the fingers phenomenon.

In Fig. 2, a point is front roller nip, and b point is the most front twisting point, and c finally twists a little, and d is twizzle point.A-b section yarn is rolled twists with the fingers roller 6 in addition very high twist, and the twist triangle zone bundle strength at a place is very high.B-c section yarn advances and is rolling sth. made by twisting roller 5 surface scrolls again simultaneously, and yarn texture becomes tight, and surface hairiness 25 is also rolled to be done around yarn, and the twist is originally identical with a-b segment base.Almost there is no the twist from c point yarn out, but fibre bundle is rolled sth. made by twisting and filoplume parcel becomes very thin, twisted immediately by the ring ingot twisting turn transmitted by d point.

In Fig. 3, motor 21 drives the drive pulley 18 be arranged on guide angle steel, then drives with driven pulley 4, rolls and twists with the fingers roller 5 and rotate, and what realize rolling sth. made by twisting roller 5 pairs of yarns 7 rolls sth. made by twisting.Controller 22 regulates and controls the rotating speed of motor 21 by control line 24 and stops, opens.

In Fig. 4, motor 23 is directly twisted with the fingers roller and is made of one, compact conformation with rolling, with low cost, installs, use, easy to maintenance.

Rolling in Fig. 5 and twisting with the fingers roller 5 outer contour is the hyperboloid of one sheet, and bus is straight line.

Rolling in Fig. 6 and twisting with the fingers roller 5 outer contour is composite curve, and bus is space curve.

Rolling in Fig. 7 and twisting with the fingers roller 5 outer contour is composite curve, and two ends diameter is different, and bus is space curve, is conducive to adjustment yarn and rolls the contact force of twisting with the fingers between roller, thus adjustment yarn index.

Below only enumerating several embodiment to invention, is not whole schemes.

Claims

1. comprise without scraping the false twisting method smoothed out with the fingers described in false twisting method and device: passed through before the twisting of ring ingot from the fibre bundle of front roller nip output and twist with the fingers roller surface close contact with it around rolling of own axis, roll and twist with the fingers roll axis and the angled layout of yarn, yarn advances along surface synchronization and and rolling is coupled with false twisting.

2. it is characterized in that rolling the dumbbell shaped rotary body that sth. made by twisting roller is big at both ends and small in middle without scraping the false twisting method smoothed out with the fingers described in false twisting method and device described in claim 1, ensure stability during Yarn twisting, according to different process needs, two ends size can be different.

3. it is characterized in that rolling that to twist with the fingers roller profile be the hyperboloid of one sheet without scraping the false twisting method smoothed out with the fingers described in false twisting method and device described in claim 1, yarn with roll that to twist with the fingers roller bus parallel, to improve twisting efficiency.

4. it is characterized in that rolling sth. made by twisting roller surface can make the contact force on yarn and rotary body surface increase gradually along yarn direction of advance for compound curved surface, is conducive to the raising of yarn quality without scraping the false twisting method smoothed out with the fingers described in false twisting method and device described in claim 1.

5. comprising without scraping the false-twisting device smoothed out with the fingers described in false twisting method and device: a hyperboloid of one sheet profile rolls sth. made by twisting roller, is placed between front roller nip and twizzle, making its bus parallel near yarn, rotating about the axis.

6. it is characterized in that rolling sth. made by twisting roller by belt by driven by motor without scraping the device smoothed out with the fingers described in false twisting method and device described in claim 5.

7. it is characterized in that rolling sth. made by twisting roller can make one, by motor direct-drive with rotor without scraping the device smoothed out with the fingers described in false twisting method and device described in claim 5.