US2629560A - Traverse device - Google Patents

Description

Feb. 24, 1953 M. ABBE TRAVERSE DEVICE 2 SHEETS-SHEET 1 Filed March 18, 1949 JNVENTOR. \Maum/ ML N W Arr-M875 Feb. 24, 1953 M, ABBE 2,629,560

TRAVERSE DEVICE Filed March 18, 1949 2 SHEETS-SHEET 2 IN V EN TOR.

- ATTO 2Y3 Patented Feb. 24, 1953 TRAVERSE DEVICE Marius-AbbaLyon, France, assignor to Societe Industrielle pour la Bayonne S. I. P. R. A., Paris, France, a French joint-stock company Application March 18, 1949, Serial No. 82,137 InFranceMarch 23, 1948.

3 .Claims- Thisinvention relates; to machines. adapted for winding threads or yarns into bobbins. withv conical ends.

In. such machines the required: variationin the stroke of .each individual thread. guide is. general-- ly ensured by an appropriate gearingdisposed at.

one end of the machine and which simultaneous- 1y. operates allthexthread guidea of I themaohine, the'said gearingbeing responsive touthe number of. rotations of. the. machine; shaft. In: another. known. construction. the stroke: controlling gear is actuatedxby a member inidirect contact with each bobbin itself.

A first objectofthis invention is to providefor the control; of the stroke of. the thread guide a mechanism. which comprises no-member intrictional. engagement with the woundv mass of threadsand'liable to damagethe same.

Another object. of my. inventionis a winding machineiwherein the thread guide is carriedby an armwhich is orbitally pivotedv by one of its pointsto acarriage reciprocated in parallel relationto the. bobbin aX-is, while another point. of. the said arm slidably, engages. a. lever pivoted about an axis. substantially parall'elto themean position of thearmand oscillatedin unisonwith the. carriages, in such annanner that. the amplie tude of the oscillationofthe.secondenamed point.

ofthearm varies. as. the thread guide arm. becomes moreinclined, .means being. provided for controloftheinclination of'the said'iarm as. the diameter. of. the bobbin. increases.

Control. of the inclination oftlie thread guide: arm might be ensured by. causing the guide to directly rest onthe bobbin, whereby it would raise asthetbobbin increases in diameter. But of' course this arrangement has the drawback that. friction of..the. guide. may damage delicate threads.

This is avoidedin. accordancewith my invention. by providingalight. frame. pivoted to the fixedframe ofthemachine and resting onthe protruding. ends of the. bobbin spindle, andby supportingthe thread guide arm by. across-bar appropriately. fixed on this light frame; in parallel relationto. the bobbin spindle. When the. diameter. of the bobbin (whichrests ontheusual driving drum) increases, itsspindle moves upwardly and the light frame is raised together. with its-.oross-bar which in .turnraises the thread guide am.-

In the annexed drawings:

Fig; 1:iS='a,.ggIIera1 perspective view diagrammatically showing the detail of a machine established in accordancetwith my. invention.

Fi .2 is a vertical transverse sectionthereof. Fig. 3 is. a horizontal section taken along line.

III-III of Fig. 2, inwhich the thread-guide and.

related parts are shown at three different positions.

Figs. 4 and 5 are two explanatory diagrams.

Figs. 6 and 7 illustrate two types of bobbins which may beobtained by means of my improved machine.

The machine. illustrated comprises a driving drum I carried by a" shaft 2 which extends. on the whole length of aframe on which-a number of similar winding machines are mounted side by side. Shaft 2 rotates continuously. Drum I: supports the bobbin 3 which isbeingwound'and the spindle 4 thereof protrudes atboth ends toengage vertical guides 5 wherein. it-may rotate and move vertically. The thread 6 to bewoundpasses through a guiding eyelet 7 adapted to reciprocate along the length of bobbin 3 to ensure regular formation of the. successive layers of. thread.

In actual practice spindle 4 is carried by ball bearings within a tube forming the core of bobbin 3, in. such a manner thatthe said spindle may remain substantially immovable within guides 5 notwithstanding rotation. of bobbin 3,v which: avoids. friction in the said guides.

It will be understood that to obtain conical ends for bobbin 3 the'stroke of the thread guide 'I must vary as the bobbin diameter increases.

The thread guide?! is. secured at theend of 'an arm tlwhich at its means position. (i. e. when thread guide 1 isin front of themiddle point of bobbin 3) is perpendicular to the bobbin axis. Arm 8 is connected with a longitudinallyslidable carriage 9 through a universal joint devicewhich, in theexample illustrated, comprises aeoylindrical member lil-fixedat right angles at the end of arm 8,, thesaid member being horizontally pivoted within an inverted U-shapedpart H. formed with averticalpin l2 rotatable incarriage. 9. Pin 12 is. acted upon upwardly by. a small spring I 3 which ensures slight. friction betweencarriage 9 and part II to. dampundesirable vibrations.

Carriage 9 is fixed on a longitudinal rod l4 extending along the fulllength of the machine and which is reciprocated by any appropriate mechanism, such as the conventional heart:- shaped cam. A. pressure screw 15 ensures fixation of. carriage 9 on rod l4 while another rod l6,-.para1lel to rod l4, forms a guide for thesaid carriage.

Carriage 9 is provided with a horizontal tail portion I'l directed in opposite direction with respect to bobbin 3 and which engages between two cheeks 18 forming a, lever unit pivoted at its upper end at l9 about a horizontal axis perpendicular to the axis of bobbin 3.

Arm 8 extends beyond carriage 9 and it terminates into a spherical end 20 which fits slidably between cheeks I8.

The frame of the machine is provided with two lugs 2| disposed along a longitudinal axis and forming a pivot for a light frame 22 made of steel wire. The two sides of this frame rest on the protruding ends of the bobbin spindle 4. Frame 22 is formed with an upper longitudinal rod 23 on which arm 8 is slidably supported in such a manner that the thread guide I is disposed close to the outer layer of threads on bobbin 3, but without contacting the latter.

The respective dimensions of the parts are such that the vertical displacements of guide 1 due to the increase in diameter of bobbin 3 are twice those of spindle 4, which implies that the axis of frame 22 in lugs 22 should be behind the axis of member I!) with respect to bobbin 3.

The operation of the machine described is as follows:

When carriage 9 is reciprocated by red l4, its tail portion oscillates the lever formed by cheeks I8 about its pivot 19. The spherical end 29 of arm 8 is thus reciprocated but the amplitude or stroke of this movement is of course dependent of the distance between the said spherical end and pivot [9. If this distance is exactly equal to the distance between carriage 9 and the said pivot, the amplitude of the reciprocating motion of end 20 is exactly equal to the amplitude of movement of carriage 9 and therefore arm 8 remains parallel to a fixed transverse direction. If on the contrary, as indicated in Figs. 1 and 2, end 20 is farther from pivot l9 than tail H, the amplitude of the said end is greater than the amplitude of carriage 9 and arm 8 becomes oblique towards the ends of its stroke, as it will be easily understood from Fig. 3 wherein the said arm has been shown at three positions, viz. the mean or middle position and each of the extreme positions. These three positions are respectively referenced 8, 8 and 8" and the same kind of reference numerals has been used for the other parts.

Figs. 4 and 5 diagrammatically illustrate the preceding explanations. In the first one if a designates the amplitude of the movement of tail I! (i. e. of rod M), the amplitude 12 of the movement of end 20 is greater. The second figure shows that when end 20 is given a reciprocating amplitude 22, while carriage I2 is only given the amplitude a, arm 8 is caused to take an oblique position as it moves from its mean position, in such a manner that the amplitude c of the thread guide stroke is smaller than a. And it is easily understood that 0 decreases as b increases, while a remains constant.

Of course the same would be true if end 20 were nearer of pivot [9 than tail I1. In such a case 0 would be greater than a but it would still decrease as 27 would increase.

As bobbin 3 receives more thread, its diameter increases and its spindle 4 moves upwardly within its guides 5. Consequently the thread guide I also moves upwardly but twice more rapidly, as above explained, in such a manner that the said guide always remains in the immediate vicinity of the outer layer of thread on bobbin 3 without however contacting the latter.

This upwards movement of thread guide I of course causes rotation of arm 8 within member I I about the horizontal axis of member H), whereby end 20 is caused to move downwardly between cheeks H3. The said end thus moves away from pivot 19 and its reciprocating amplitude b increases, which leads to a corresponding decrease of the amplitude 22 of the reciprocating stroke of the thread guide. The amplitude of the reciprocating movement of the thread guide thus decreases as the bobbin increases in diameter. There is thus finally obtained a biconical form for the winding of thread, as indicated in Fig. 6.

My improved machine also permits to obtain bobbins of the kind illustrated in Fig. '7, wherein the biconical ends are formed inwardly. It will be understood that for such a result it is only necessary that the variation of the amplitude of the thread guide stroke should be the reverse'with respect to the above. This is easily obtained by inverting the lever formed by cheeks l8, 1. e. by pivoting same about a pivot l9 (Fig. 2) disposed at the opposite position with respect to the above described pivot I9.

I claim:

1. A winding machine for threads, yarns and the like, comprising in combination a substantially horizontal rotating drum adapted to support and to frictionally drive a bobbin provided with an axial spindle; vertical guiding means above said drum for said spindle; a reciprocable thread guide adapted to be reciprocated along the length of said bobbin substantially at the upper part thereof; an arm to carry said thread guide, said arm being substantially perpendicular to the axis of said bobbin when said thread guide is at the mean position of its stroke; a carriage to which said arm is orbitally pivoted, said carriage being reciprocated in a direction substantially parallel to the axis of said bobbin; a frame pivoted along an axis parallel to the axis of said bobbin and resting on the ends of said bobbin spindle; a transverse bar carried by said frame and adapted to slidably support said arm, said bar being so disposed on said frame that said thread guide remains in close but non-contacting relation with respect to the outer layer of threads or yarns on said bobbin irrespective of the diameter of the latter; a lever oscillatable in a plane substantially perpendicular to the mean position of said arm; means to oscillate said lever in unison with said carriage; and means on said lever to orbitally and slidably engage said arm at a distance from the connection thereof with said carriage.

2. In a winding machine as claimed in claim 1, said arm having its end remote from said thread guide in the form of a sphere and said lever being formed of two cheeks disposed in two planes parallel to each other and to the geometrical axis about which said lever is pivoted, said cheeks slidably engaging the spherical end of said arm.

3. In a winding machine as claimed in claim 1, said lever being formed of two cheeks disposed in two planes parallel to each other and to the geometrical axis about which said lever i pivoted, and said carriage being provided with a cylindrical tail parallel to said geometrical axis' and slidably engaged between said cheeks.

MARIUS ABBE.

(References on following page) Number Name Date REFERENCES CITED 2,296,319 Kohorn Sept. 22, 1942 The following references are of record in the 2,481,619 Roessel Sept. 13, 1949 file of this patent: r FOREIGN PATENTS UNITED STATES PATENTS Number Country Date Number Name Date 286,046 Italy May 29, 1931 1,473,172 Boyd et a1 Nov. 6, 1923 480,45 a y June 16, 6 1,668,495 Eisner et a1 May 1, 1928 667,788 France June 25, 1929 1,819,695 Anderson Aug. 18, 1931 10 683,468 Germany Nov. 7, 1939 1,330,110 Jones Nov. 3, 1931 926,520 France Apr. 21, 1947

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