US2317874A - Yarn winding device - Google Patents

Description

April 27, 1943. R. ALMY 2,317,874

YARN WINDING DEVICE Filed Sept. 7, 1940 I 3 Sheets-Sheet 1 Rwham'RAzm INVENTOR BY I ATTORNEY April 27', 1943. RIRALMY 4 2,317374' YARN WINDING DEVICE} Filed Sept. 7, 1940 3 Sheets-Sheet 2 Ez'chardRAlm q INVENTOR ATTORNEY April 1943- v R. R. ALMY 4 2,317,874

YARN WINDING DEVICE i Filed Sept. 7, 1940 3 Sheets-Sheet 3 /II/I/I/I/II/II/IIIIIIIIII/A /7a 1 41514 emNa-fl ATTORN EY 'manner to the yarn.

Patented Apr. 27, 1943 YARN WINDING DEVIC E- Richard R. Almy, Warwick, R. I., assignor to E. L du Pont de Nemours ,8: Company, Wilmington, Del., a corporation of Delaware Application September '1, 1940, Serial No. 355,725

6 Claims.

I I The present invention relates to apparatus for the winding of yarn into a package, and more particularly, it relates to the Winding of yarn and the simultaneous application ofIoil or other treating or finishing liquid, in a satisfactory, uniform In the winding of yarn onto a cone'it is customary to condition or lubricate the yarn during i the winding operation in order to improve the running qualities of the yarn, or toimpart a softness and pliability' to the yarn to enable it to be-used in weaving and knittingoperations.

In a winding apparatus, the, core, or yarn support, is frequently mounted upon a spindle that is driven at aconstant speed throughout the.

entire winding operation. Hence, the linear speed of the-yarn being wound upon the cone increases as the package increases in diameter. The increase in the speed -of the yarn from the start to the finish of the winding operation is dependent upon the size of the yam package formed and, in some cases, the speed increases as much as 400%, or even more. Thus, to apply the oil or other finishing composition uniformly to all parts of the yarn being wound upon thecone, it is necessary to adjust the rate of application of the oil so as to'compensate for the increase in linear speed of the yarn.

It is therefore an object of the present invention to provide an improved winding and oil applying apparatus whereby the quantity of the oil applied per unit length-of the yarn will remain substantially constant throughout the winding operation.

Other objects of the invention will appear hereinafter.

The objects of theinvention are accomplished,

of a portion of the apparatus shown in Figure 1.. v Figure 3 is a sectional view taken along the line 3-3 of; a portion of the apparatus shown in Figure-'1.

*Figure 4 is atop plan view of the oiling roller and yarn guiding mechanism shown in Figure 1. Referring to the drawings, reference numeral designates a fixed yarn supply package. The yarnl3 is-drawnfrom the top end of the supply package I and is passed upwardly to the yarn support 35 which'is positioned onthe winding spindle 36. A slotted yarn guide |5 is positioned a short distance from the top of the-supply pack:

age A movable yarn restraining guide 11 is positioned a slight distance above slotted yarn guide l5. The restraining guide I! is provided with two legs ||A which pass through a U shaped supporting member Hi. The legs "A are adapted to reciprocate in the support I9 so as to lengthen and shorten the transverse movement of the yarn due to the ballooning thereof. The yarn is then passed in contact with an oil wiping roller 25. The yarn is maintained in contact with wiping roller by means of rods 2| and 23 spaced a short distance from the periphery of the roller.

.The yarn then passes upwardly through a convergence guide '21, thence through a yarn tensioning device 29, and from there over a yarn bale guide 3|, through reciprocating button guide '33 which guides the thread on to the yarn support35. The support is rotated by means of rotating spindle 36. The spindle 36 is mountin general, by pulling the yarn from a fixed 'yam supply package over one end of said package thereby causing the yarn to balloon as it passes from the package. The yarn is then passed over an oil wiping roller positioned in the path of the yarn and means are provided for varying the magnitude 'of the balloon of the yarn so that-the yarn will shift over the surface of the wiping roller to varying degrees, dependent upon the linear speed of the-yarn.

The present invention will be more readily I'med for rotation in a supporting-base 31 of the winding apparatus.

The reciprocating. yarnbutton guide 33 is mounted for reciprocation in the traverse frame back 39. Traverse frame back 39 'is counterweighted by means of counterweight 43 and the weight and back are pivoted to the supporting base 31 at 4|. The yarn restrainingguide is mounted for reciprocating movement in a block 55 which is fixed to the frame-of the winding machine. The guide I1 is reciprocated by connection with the counterweight 43 which moves in the direction of the arrow shown thereon as the yarn package increases in diameter.

- lever arm 4'! is pivoted at 45 to the counterweight derstood by reference to the following written I description when taken in-connection with (the accompanying illustrations in which:

Figure 1 is a diagrammatic, side elevational' view of a winding apparatus i'con'structed in accordance with the present invention.

, Figure 2 is an enlarged side elevat onal view- 43. The opposite end of lever arm 41 is pivoted at 49 to lever arm 5|. Lever arm -5| is pivoted on a fixed pivot 53. The opposite end of arm 5| is pivoted at 51 to the restraining guide l1.

The oil wiping roller 25 is positioned for rotation inian oil trough 26.

The above described apparatus functions essen tially as follows:

The circular ballooning movement of the yarn as it passes from the yarn supply package H is converted into a reciprocating movement by passing through the slotted guide l5. At the beginning of the thread winding operation the legs "A of the yarn restraining guide l'l project through the support I!) to substantially their entire length. The yarn, as it passes from the slotted guide I5, is held between the restraining guide l1 and the support l9 so that substantially no transverse or side-wise movement of the yarn is permitted. The yarn consequently passes in a constant straight line over the oil wiping roller' 25 and to the convergence guide 21. The yarn is maintained in contact with the oil wiping roller 25 by means of rods 2| and 23; The tensioning device 29, which is preferably of the type disclosed in the copending application of Arthur E. Guenther, Serial No. 209,653 filed May 24, 1938, imparts a tension to the yarn so that the latter may be wound on to the yarn support with a uniform tension. The yarn passes from thetensioning member over yarn bale guide 3! and thence is guided on to the package by the button guide 33.

As the wound yarn package increases in diam- ,efr (shown in the left hand position of Figure 1) the counterweighted traverse frame back 39 is swung about pivot 4| in the direction of the arrow shown on the counterweight 43. The lever arm 41 is consequently moved to the left and swings lever arm 5| about the pivot 53. As a result the restraining guide I1 is drawn to the right causing the legs liA of the guide to be withdrawn from the support l9. This will permit the yarn to reciprocate transversely over the surface of the oil wiping roller 25 thereby causing the yarn to pick up a greater quantity of oil due to this sidewise wiping action on theiroller. The amount of transverse movement of the yarn over the wiping roller is adjusted to compensate for the increase'in linear speed of the yarn so that the quantity of oil actually applied to the yarn will remain constant throughout the winding operation.

Referring to Figure 2 of the drawings, the various parts of the oil wiping mechanism including the restraining guide and the slotted guide l5 are shown on a larger scale than Figure 1. This figure of the drawings is added for the purpose of more clearly visualizing the parts above referred to.

In Figure 3 of the drawings the oil trough 26 is shown in cross-section with the wiping roller submerged in the oil or other finishing liquid. This view of the oiling apparatus shows the path of the yarn as it passes through the slotted guide IS, the restraining guide I! and under the guide rods 2| and 23. The various parts designated by reference characters in this-figure are the same as those abov referred to in Figure 1.

Figure 4 of the' drawings discloses a top plan view of the oiling mechanism including the restraining guide I! and the two legs A which project through the U shaped supporting member IS. The several parts referred to by refer! ence characters in this figure are also the same as those above referred to with reference to Figure 1. a

It will be clear that any other type of leverage mechanism commonly employed to transmit a substantially straight-line motionto the movable yarn restraining guide I1 may be employed in place of the particular mechanism disclosed in the drawings and above described. The extent of motion of the restraining yarn guide I1 is dependent upon the adjustment of the system of leverage members and the present invention contemplates any adjustment of such leverage members that is necessary to permit the desired movement of the movable yarn guide as the yarn package increases in diameter. anism above described use is made of a slotted yarn guide and a restraining guide 11. Obviously, the restraining guide I! may function both as a slotted guide and restraining guide.

It is-furthermore believed that the restraining guide need not necessarily have the particular form and construction specifically illustrated and described but may be constructed in numerous modified manners to function substantially in the manner above referred to.

According to the preferred method of operation of the apparatus the oil wiping roller is rotated at a constant'speed of from one-fourth If desired, however, the speed of the roller may be varied as the speed of the yarn increases to pick up an increasingly greater quantity of oil. That is, if

the movement of the yarn restraining guide as described above does not sufficiently compensate for the increase in speed of the yarn, satisfactory compensation may be obtained by additionally increasing the speed of the rotation of the roller as the speed of the-yarn increases.

Although the invention has been illustrated and described in connection with a winding machine of the type manufactured by the Universal Winding Company, the invention is not limited to this type of winding machine, and may be used to advantage on any type of winding machine in which the yarn is drawn from one end of a stationary supply package, and in which the speed of the yarn increases as the diameter of the wound yarn package increases. By employing the apparatus of the present invention oil, or other treating or finishing composition, may be applied to yarn in a uniform manner throughout the entire winding operation. The apparatus'provides means for accurately compensating for the increased speed of the yarn as the wound yarn package increases in diameter.

The most important advantage of the apparatus of the present invention over previous types of oiling and winding mechanism is that it will apply uniform quantities of oil from the start tothe finish of the winding operation with the introduction of a relatively small amount of yarn line snubbing angularity. -It is well recognized that the impartation of large amounts of snubbing to the yarn will cause the production of shiners in the yarn. This is particularly true when the yarn is withdrawn from a package such as a' bucket cake where varying tensions are necessary todra'w the yarn from the package. A fuller discussion of the disadvantages of yarn snubbing angularity will be found in the co-pending application of Lester S. Sinness, Serial No. 207,587, filed May 12, 1938.

The apparatus of the present invention may be very readily and conveniently threaded because two closed guides which are generally necessary on .the conventional slide bar type of compensating oiling device are eliminated. By the use of the apparatus of the present invention yarn may be wound over extended periods of time with a minimum amount of wear on the apparatus, andconsequently longer life of the thread guides associated with the piling mechanism.

In the specific mech- Since it is obvious that many changes and modifications can be made in the apparatus specifically described above without departing from the nature and spirit of the invention it is to be understood that the invention is not to be limited tothe above described details except as set forth in the appended claims.

I claim: 7 v

1. In a yarn winding apparatus of the type in which the speed of the yarn increases as the wound yarn package increases in diameter, a fixed yarn. supply package, a convergent guide positionedabove said package, means for pulling the yarn from one end of said fixed package thereby causing the yarn to balloon as it passes.

from said package; an oil wiping roller positioned in the path of the yarn passing between said guide and said supply package, and yarn guide means between said roller and supply package for varying the magnitude of the balloon of the yarn.

2. In a yarn winding apparatus of the type in which the speed of. the yarn increases as the *wound yarn package increases in diameter, a fixed yarn supply package, a convergence guide positioned above said package, means for pulling the yarn from one end of'said fixed package thereby causing the yarn to balloon as it passes from said package, an oil wiping rollerpositioned in the path of the yarn passing between said guide and said supply package, a slotted yam' means operatively connected to said traverse frame back for gradually increasing the .transverse shifting motion of the yarn on the roller as the yarn speed increases.

5. In a yarn winding apparatus, a winding spindle, a traverse frame back pivoted to move away from said spindle as the yarn package increases in diameter, a fixed yarn supply packguide, and a movable restraining guide between said roller and supply package for converting the circular ballooning movement of the yarn into a transverse shifting motion and for varying the magnitude of said transverse shifting movement of the yarn with said wiping roller.

age, a convergence guide positioned above said package, said winding spindle pulling the yarn from one end of said fixed package thereby causing the yarn to balloon as-it passes from said package, an oil wiping roller positioned in the path of the yarn passing between said guide and said supply package, guide'means between said roller and supply packagefor converting the circular ballooning movement of. the yarn to a transverse shifting motion, a movable yarn'restraining guide between said roller and said supply package, and meansfor connecting said guide to said traverse frame back whereby gradual movement of the traverse frame back will gradually move said guide to increase the transverse shifting movement of the yarn 'on said roller.

6. In a yarn winding apparatus, a winding spindle, a traverse frame back pivoted to move 3; In a yarn winding apparatus in which the speed of the yam increases as the wound yarn package increases in diameter, a fixed yarn'su'pply package, -a convergence guide positioned above said package, means for pulling the yarn from one end of said fixed package thereby causing the yarn to balloon as it passes from said package, an oil wiping roller positioned in the path of the yarn passingbetween said guide and away'from said spindle as the yarn package increases in diameter, a fixed yarn supply package, a convergence guide positioned above said package, said winding spindle pulling the yarn from one end of said fixed package thereby causing the yarn to balloon" as it passes from said package, an oil wiping roller positioned in the said supply package, a slotted yarn guide between a said supply package and said roller for converting the circular motion of the ballooning yarn to a transverse shifting motion, and a movable restraining guide between said slotted guide and said roller for gradually increasing the transverse I shifting motion of the yarn on said roller as the diameter of the wound yarn package increases.

4. In a yarn winding apparatus, a winding spindle, a traverse frame back pivoted tomove away from said spindle as the yarn package inpath of the yarn passing between said guide and said supply package, a-slotted yarn guide between said supply package and said roller for transforming the circular motion of the ballooning yarn to a transverseshifting motion, a movable restraining guidebetween said slotted guide and said roller, means connecting said restrainmotion of the yarn on said roller.

ing guide to said traverse frame back whereby gradual movement of the traverse frame back will gradually move said restraining guide to increase the magnitude or the transverse shitting

Images