US913739A - Yarn-winding apparatus. - Google Patents

Description

P. LAUBLI.

4 YARN WINDING APPARATUS.

- APPLICATION FILED NOV. 23, 1906. 91 3,739.

. Patented Mar. 2, 1909.

UNITED STATES PATENT @FFIQF PAUL LliUBLI, OF ZOFINGEN, SWITZERLAND, ASSIGNOR TO PAUL RUDOLPH VOIGT, OF OHEMNITZ, GERMANY.

YARN-WINDING APPARATUS.

Application filed November 23, 1906.

T 0 all whom it may concern:

Be it known that I, PAUL LAUBLI, citizen of the Swiss Republic, residing at Zofingen, Switzerland, have invented certain new and useful Improvements in Yarn-Winding A paratus, of which the following is a specincation.

This invention relates to yarn-winding ap aratus.

n machines for winding yarn, conical rollers have been arranged adjacent the lower, conical parts of spools or cops in course of formation, thread-guides being suitably reciprocated to lay the thread upon the said conical parts, so that the increasing thicle ness of the thread-layers gradually-lifts the spools at a rate proportional to the increasing size of the latter.

The present invention also involves the use of a roller against which the lower part of the s 001 or cop abuts, so that the latter is gradua y lifted during the course of the winding process, but the construction and action of the said roller are so modified, that the ordinary thread-guide is dispensed with, the function of guiding the thread being performed by the roller itself. For this urpose a conical part of the latter is provided with an eccentric annular groove which returns upon itself and into which the thread is laid, so that the thread is crosswound in a manner depending on the shape of the groove.

The construction of the apparatus varies in detail according to the partlcular purpose for which it is designed.

The invention is illustrated in the annexed drawing by means of a device as applied to the winding of weft-cops, but with suitable modifications it can also be applied to variable cross-winding with self-actors, to winding large bobbins, and to other similar purposes.

In the drawing Figure 1 is a side-view, partly in section and Fig. 2 a plan-view of the apparatus. Figs. 3 to 6 are side-views illustrating different stages of the winding process.

The spindle a is revolved in the usual manner by means of friction-gear, change-wheels, a strap or cord and pulley, or similar well known mechanism not illustrated. On the spindle is placed the empty spool Z) or tube of pressed paper. For winding coarse cotton or linen yarn it is desirable to use ribbed Specification of Letters Patent.

Patented March 2, 1909.

Serial No. 34%,764.

spools, but for softer, supple yarns, smooth spools are suitable. The truncated, conical cup or roller c, which constitutes the essential feature of the invention, may be constructed of wood, glass, cast-iron or other suitable material, and is provided with an elongated hub-part (Z, by means of which it is loosely mounted on an axle c, the latter being fixed to a holder f rotatable and adjustable on an axle g. The geometrical axis of the axle g is tangential to the spindle a, so that by adjusting the angle of inclination of the axle e the cup or roller 0 can be adjusted to coact with spools of all degrees of conicity.

In the outer, conical surface of the roller c is formed the eccentric guide-groove i already referred to, the said groove being in the example illustrated substantially heart-shaped, as shown in Figs. 3 to 6.

The action of the apparatus described will be readily understood by reference to Figs. 3 to 6, showing successive positions of the thread 7c. The position of contact between the cup 0 and the spool remains unchanged during the winding operation, but the thread 7c engaged by the guide-groove i is during this operation displaced in accordance with the changing position of the latter.

To prevent access of the lubricating oil to the thread, the hub-part d has no orifice at the end adjacent the cup, as is shown in Fig. 1; the outer surface of the cup is, therefore, continuous. The facility with which the cup is revolved is such that slight differences in the dimensions of the spools used are immaterial, such dii'lerences being neutralized after a few revolutions of the cup. i'Vhen the spindle a is started rotation is immediately imparted to the cup 0, and the thread is, is reci rocated by reason of its engage ment wit1 the groove 1', and is therefore cross-wound on the coil m. The friction to which the thread is subjected when passing on to the spool is negligible, the groove i being comparatively wide, and the thread is wound in curved lines, without making angles such as occur with some systems of winding. The friction between the revolving on c and the cop or spool m is so slight that tie most sensitive and delicate yarn can be wound without injury, whereas with ordinary cones, such as have hitherto been used, breakages are frequent. Even with very slight yarn-tension and yarn of poor quality, the winding is very firm, and this is of course of great advantage in cops and bobbins used for weaving purposes. It the cup 0 has a few millimeters pl :7 cops of diilerent thicknesses can be wound, but for simplicity and cheapness it is preferable that the cup should be stationary and merely rotatable about its axis, as shown in the drawing, and even under these conditions diilerences of from 2 to 3 millimeters in the cop-diameter ii the diil'erence is greater are possible. than say 3 millimeters, all that is required is to use a thicker or thinner spool. It has been found that there is no risl: whatever of the thread slipping out of the groove, provided that the cup is adjusted with moderate accuracy.

The simplicity of the invention allows of applying it, at small cost, to existing windingmachines, the out-put of which is doubled or trebled by this means. A very considerable reduction of working expenses rcsults from the fact that only the spindle need be driven.

Having now fully described my invention I declare that what I claim is 1. In a yarn-winding apparatus the combination of a rotated spool, a revoluble roller driven by said spool and arranged adjacent thereto and an eccentric groove provided in the outer circumference of said roller adapted to engage a thread and pass it on to said spool the rotative axis of the roller being an gularly disposed with respect to that of the spool.

In a yarn-winding apparatus the combination of a rotated shaft, a spool f xed thereto, a roller driven by said spool and adapted to contact said spool, a groove in said roller adapted to engage a thread and pass it on said spool the rotative axis of the roller being angularly disposed with respect to that of the spool.

3. In a yarn-winding apparatus the combination of a rotated shaft, a spooli'ixed thereto, a roller driven by said spool and arranged adjacent thereto and means for passing a thread engaging said roller to said spool the rotative axis of the roller being angularly disposed with respect to that of the spool.

4. In a yarn-winding apparatus the combination of a rotated spool, a truncated conical roller driven by said spool and adapted to abut said. spool and cross-wind a thread engaging its outer circumference on said spool the rot ative axis of the roller being angularly disposed with respect to that of the spool.

5. In a yarn-winding apparatus the combination of a rotated spool, a truncated conical roller driven by said spool and adapted to contact said spool, an eccentric groove returning upon itself provided in the outer circumference of said roller adapted to engage a thread and wind it on said spool the rotative axis of the roller being angularly disposed with respect to that or-the spool.

6. in a yarn-winding apparatus the combination of a rotated spool, a truncated conical roller driven by said spool and adapted to contact said spool, a heart shaped grooveproided in the outer circumference of said roller adapted to engage a thread and pass it up and down said spool the rotative axis of the roller being angularly disposed with respect to that of the spool.

7. In a yarn-winding apparatus the combi nation oi a driven spindle, a spool fixed thereto, an axle, a truncated conical cup arranged loosely thereon adapted to contact and be driven by said spool by its outer circumference, the rotative axis of said cup being angularly disposed with respect tothat of the spool, a cam groove provided in said outer circumference of said cup adaptedto engage a thread and pass thelatter to said spool thereby reciprocating it thereon.

In testimony whereof I afllx my signature in presence of two Witnesses.

PAUL LAUBLI.

Witnesses AUG. SonEN'rz, FRANZ BASLER.

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