US2385046A - Yarn twister - Google Patents

Description

Sepfli, 1945- A. E. wmsLow 2,385,046

YARN TWISTER Filed Sept. ll, 1943 INVENTOR ATTORNEYS Petented Sept. 18,

UNITED, STATES PATENT OFFICE YARN TWISTEB Albert E. Winslow, Mystic, Conm, assignor, by mesne assignments, to Farrel-Birmingham Company, Incorporated, Ansonin, Comm, a corporation of Connecticut Application September 11, 1943, Serial No. 5015983 2 Claims. (01. 57-86) This invention relates to a yarn-handling mschine, more particularly to the ring twister type.

In machines oi this character it is usual to take by feed rolls from a supply package a single or two parallel yams end in the latter case deliver the yarns separately to pack ing spindles where they sre individually twisted. The feed rolls srip the your and pull the some and require of the yarn that it he of sucient strength to withstand such treatment. In certsin tender ysms this treatment is shusive oi the yern and in such yarns as glass yams certain of the fibers ere broken which is detrimental to the yum.

One of the objects of this invention lsto reduce oontect with the yarn which may cause it to hreslr.

Another object is to twist the yearn leech to the supply pechcse to bum in oil loose ends sud strengthen the ysm us it is initially supplied cool when persllel yarns are used to essist in their separation.

Another object of this invention is to drive the supply possess having" the two perellel ysms wound thereon so is to eliminate necessity of gripping or nipping teed rolls for drawing the yero from the supply peclssge, thus mulling it unnecessery to cheese the veins between the supply peclrege end the delivery pscltsee except for e light studios ensesemeht which msy occur- 1 on the ysrm.

Another ohiect of the invention is to permit the twist whichls sppliecl to the porn traveling from the ring traveler heel; to the supply peels use over 2. suhstsutiel distance during which dis tense the twist is pissed in the yarn.

Another object of the invention is to provide it supply peclrese which may be easily mounted upon end withdrew from the mechine even though this supply peclxsse is driven Another object of this invention is to provide e. moons for varying the drive of the supply peel:- oee so as to sccoete the supply oi. the puck use to the speed of the spindle to which it is being delivered.

Another object of the invention is to provide on srrspsement in which the unit consisting of as supply pucksge and a. pair of spindles may he arranged side by side along s. length of machine with a common drive for all of the supply packcues and a common drive for the spindles.

Another object of the invention is to provide an arrangement so thatthe same frame may be equipped with a plurality of side by side units in back to back relation with a spindle drive for each back to back units of the assembly.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. l is a sectional view through the twister frame between the delivery packages 0! Fig. 2 showing the yarn as guided from the supply pecksse to the spindle package which is surrounded by the ring and traveler;

Fig. 2 is s fresmcntsl iront elevetion of s modification lersely diecrammstic end illustratlog the yarn as led from the supply peckege to two spindles.

in proceeding with this invention Iolrive the supply pockets of yarn so us to cause the some to feed the your supply enol then tulle up the I ysm on s bobbin mounted on the spindle and surrounded by the ring end traveler so that is pieced in the ysrn running from the delivery pscksge hook to the supply package without eny lntermediete feed rolls whereby to materially strengthen the ysrn and bind in all the short ends and also assist in separation. when perellel yarns are used. The yarn which is dealt with in e. machine of this cherscter is very time yum sometimes running ninety thousand ysrds to the pound.

With reference to the drewme it desicustes generally the structurel framework hsvirls e. sup porting stand it and horisontel single hers it? from which brackets I1 3 extend for guiding the thread sulcle rod ill carrying the thread guide l at the upper end thereof end which has the ring," will and ring ll curried thereon for reciprocstiug motion along the spindle psclzege designoted generally it and mounted on the spindle hiede. The spindle slso includes e. whirl it which is drivenirom the belt it which trsvels in s vertical plane and runs lengthwise of the mochiue to operste oil of the spindles or tote-up packages throughout the length of the mess. The spindle is suitably mounted in s sing bracket which is urged against the belt ior drivw the some and may be withdrawn it w the hell; for stopping the spindle, all as more psrticrly pointed out in my co-pending application her. No. 508,817 new Patent No. 2,375,605, dated y 8.

1945, which relates to a stop motion and mesh 1 carries a drum 28 with which the back of the V belt 29 may engage to drive the same. A V- pulley 30 grooved at 31 fits this belt and serves to move it into engagement with the drum 28 so thatthe back of the belt may drive the drum.

The yarn on the package 21 is led from this package througnthe pigtail guide 32 and thence to the bobbin [8. By reason of the-ring l1 and traveler 33 the yarn is caused to balloon and twist with the twist traveling back to the supply package 21 by reason of the substantially straight path of the yarn. The guide 36 only lightly touches it. By the twist traveling back to the supply package all of the ends of the yarn are bound in together making a strong strand and one which cannot pull apart from a point close to the supply package. This is exceedingly important in handling small diameter yarn, such as glass yarn which may run ninety thousand yards to the pound. Also by delivering directly from the supply package to the take-up package without any intermediate feed rolls less handling of the yarn is required which also in small brittle yarn as glass serves to abuse the yarn toa substantial extent. Thus it is additionally advantageous to cause the yarn to travel from the supply package to the take-up package merely over a minimum number of guiding bars which do not materially deflect it from a straight path.

In some cases in the making of yarn of this character it is advantageous from the standpoint of previous processing to wind more than one yarn end on a package in which case a saving is efiected by running two yarn ends or more in parallel relation upon a package, such as a supply package 21. In taking such parallel yarns'from the supply package one yarn end will be directed to one yarn extends over a guide 36' and through the guide 32' and the twist also runs back to the guide 36' over which the second yarn 35' extends. The twist in the companion yarn 35 will as previously described run back to the supply package and will assist in separating the two yams from each other. .It will be understood that the supply packages are driven in each case and the yarn is led with a twist therein running from the take-up package back to the supply package.

The supply packages are usually rather small and it is unnecessary to equip the driving belt 28 with a variable drive to compensate for the decreasing diameter of thepackage although if larger yarn packages were supplied this expedient would be adopted in order that the delivery might be more uniform and the .yam more uniform throughout the extent of its length in which case a Reeves drive with V belt may be used.

I claim:

.1. In a yarn handling machine, a unit assembly comprising a supply package of a plurality of parallel strands, an individual spindle for each of said strands, guides for directing one strand to each spindle, one strand leading straight enough to carry the twist back to the supply package, means for driving the spindles to take up and twist each strand and co-related means for driving said supply package constituting the only means for transferringthe strands from the supply package to the spindle packages.

2. In a yarn handling machine, a unit assembly comprising a supply package of a plurality of parallel strands, an individual spindle for each of said strands, guides for directing one strand .to each spindle, one strand leading straight spindle while the next yarn end will be directed to the next spindle, and so on if there are more than two. And in Fig. 2 I have illustrated one yarn end 35 as heretofore described as a single, while the paraliel yarn 35' is directed over to the package l8 where it travels through the traveler 33 moving about ring rail l'l' to be assembled upon the package l8 similarly. In this case the enough to carry the twist back to the supply pack age, means for. driving the spindles to take up and twist each strand and co-related means for driving said supply package, said strands being free from contact with other feeding means whereby said twist extends back to the supply package.

' ALBERT E. WINSLOW.

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