US1629300A - Traverse drive for winding machines - Google Patents

Description

a a/L 2 Sheets-Sheet 1 QR 5 -11 g A FETERSEN TRAVERSE DRIVE FOR WINDING MACHINES Illed Sent 8 1925 May 17; .1927.

v May '17, 1927-.

A. PETERSEN TRAVERSE DRIVE FOR WINDING MACHINES Filed se t- 1925 2 She ets-Sheet 2 Five Patented May I 17, 1 92 mwma nRiij'rE Fora wxnm ire mes-ms.

it Application filed September: 8;.i923. Sefial No.661,-713. i

This invention pertainsto. machines for winding yarn or thread and relates more particularly to mechanism for actuating the traverse guidev ofsuch a machine, the principal object of the invention being to' providea traverse guide mechanism of simple and durable character which will lay the yarn or thread with substantialuniforinity from end to end of the bdil'ding i0 yarn mass andWherein lost 1n0tio11},or back lash between the severalpartsgissub'stantially-eliminatedl V 1 V A preferred embodiment of, the invention together with certain modifications thereof is-illustratedwby Way of example in. the accompanying c'ltawingsin Which:,

Fig. 1 isa fragmentary front elevationof one end of a- \vind ing-inachin'e embodying the present invention; i t 30y 2V is aflfragnientary" end elevation from the right. hand end of the device as}.

' Fig. 3 is a" vertical sec on the line 3 def 2; 1 1 .Fig'. 4 is a fragmentary front elevation 7 similar to Fig-,1 but showing amodificjation and Q U H v Fig; 5118x2111 fend shown-in Figyh i c .2

'Referring to the drawings the numeral;- 1 indicates a. po,rtion=; of qthe' frame of a; Winding machine of, I any 1 desired type C0111: i prising J a series .of winding units of which the endmost is indicated at; 2,i;lhe;n1aehine is provided with a main shaft 3 W lTlCll EX- tends longitudinally ofthe frame and Which tion to larger scale elevation the p r to: the; several- I Winding; units for actuating the latter. Each inding ilnit, comprises a traversingt-yarnf guide-,6 mounted jup'on a reciprocating tiaverse'bar 7 commonto the f: several units and Which; may be supported and gnidedein-Hany suitable manner. 4Q

' A'c-bracketd), is secured to one end 0 :Jwxihichi agguidedrum 1'7"tnrns freely}; 1 i Thefitraverse bar. 7 projects,beyond the;

4 end of tlie ina ch ineframe above, the. periph-g.

- shaft 3.

A count parallel to the 'shaft' 25,;an-d turns in bearings 31 and 32'Qar'ried by the bracket, 9. The {shafts 12,; 25 vand all lie substantially inthe same plane, the shafts 12- and 301 being" disposed diamet sides ofthe shaft25,

' 11" by means of into'fthe drum I braclzets 18 and 19 respectively, are-secured to the end portion of the-bar 7. and project horizontally in opposite directions from the bar.

.chain 20 has one of its ends secured to the second chain 23 hasone of its ends secured to the braoketx19 and'after ipassing about the op positesideof the drum 17 from the cha1n20 has its end portion Wrapped about the spool 13 andis-secured to the latter substantially atthe point 2-1.- The chains- 20 and 23 are wrapped: about :the' spool in opposite ClH'GQEiOIIS. i a i wBeloW and substantial1y pjarallelto the shaft 16' a drive shaft 25 is mounted in beai'ai'igs 26 and W ar-med by' 'the bracket 9,; -A worm; wheeLQS is secured to the-for- W'ard end of the drive, shaft 25 and meshes pon the end of the main f0 with a drum 29h ersha'ft beloii and:

rically opposite the [drive shaft 25v and is arranged to mesh alternately with segmental and 35 fizz-ed respectivelyto,,tl1e=-osci1lat-ing shaft 12 with each otheipthus constraining; the; shafts 12 and 30 7 always to turn injopposlte ,direc t1011S.'

.e n dow r ly "to (a: poin be ow In the modified arrangement illustrated i n Figs;v d and 5' the guidev drum; 1f? illustrated inrliiigs. 1and 2f is1diSpensed- 'ith and" the este 1 i s slmfl 1 ri e LPaI'Q l l haft A1. (Ellis-wheel or disc proizided';

with aperipheral f'grooye whiclhser es as a p A; segmental driving gear 33' isseeureditoy lee neshing gearsfiil and traverse bar 7.

At opposite sides of the groove the Wheel or disc is furnished with substantially cylindrical peripheral faces A flexible connector 44, preferably consisting of a fiat resilient strip of spring metal is'secured at one end to a pin 45 projecting from the traverse bar 7 The flex-.

ible'connector then passes about the wheel or disc 43" engaging one of the peripheral surfaces 43 at 46 and has its opposite end secured to the Wheel or disc at the point 47.

A second and similar flexible connector48 is secured at one end to a pm 49 pro ect1ng is substantially at the middle of its stroke.

Main shaft is constantly turning'and by means of the worm 29 and Wheel 28 constantly rotates the drive shaft 25 in a given direction, assumed to be that indicated by the arrow A in Fig. 3. As shown in the latter figure the segmental gear 34 carried by the oscillating shaft 12 is turning in a counterclockwise direction While the segmental gear 35 is out of mesh with the driving gear 33, but is constrained to move in a clockwise direction by the action of the I meshing gears 36 and 37.

The spring 39 is underltension and as the gears 33 and 34 continue their movement the crank pin v38 passes the center line of the gears and immediately begins to react upon the shaft 12 and gear 36 tending to turn 'them in the same direction in- Which-they are driven by the driving gear 33. Thls ac tion gradually absorbs the back-lash between the parts and-When the endmost tooth T soft-he drivlng gear has reached itsloWermost position it immediately engages the first tooth T of the gear 35,- and -moti'on is imparted to the gear35 without hesitation comes into engagement vvith the first tooth of the gear 34 so "that the motion of the oscillating shaft 12 is smoothand certain.

or laggingo'f'the parts. The spring acts in the same manner When the driving gear 35 The traverse bar 7 thus moves the yarn guide accurately so that the yarn is laid uniformly and smoothly upon the Winding yarn mass Without any tendency to pile up I at the opposite ends'of the latter as is usual with traverse drive mechanism character.

;By 4 employing tiall'y non-extensible connections herein disclosed between the oscillating shaft and the reciprocating traverse guide all lost-motion of ordinary or back lash betweenthese parts is also eliminated and the oscillatory movement of the shaft is transmittedwithout substantial change to the reciprocating bar. 7 In the device shown-in Figs. 4 an'd 5 the flexible resilient strips 44 and 48 take the place of the chains shown in Figs. 1 and 2 and transmit the motion from the oscillating shaft to the reciprocating bar in substantially the same manner.

- The device thus provided is capable of application to existing Winding machines with out substantial change in their structure and While of simple character and comparatively cheap to construct provides for greater uniformity in laying the yarn'upon the Winding yarn mass than is usual in traverse drive mechanisms such as are commonly em- Iclaim: I a 1 s V 1. In a Windingmachine having a reciprocating traverse bar provided With a thread guide, an oscillatory shaft, intermittent gears for driving the oscillatory shaft, a freely turning guide drum to which the bar is substantially tangent, a spool secured to the shaft, and pair of chains engaging the spool, one end of each chain being secured to the bar and the other end portions of the respective chalns being Wrapped in opposite directions about the spool, the intermediate portions of the chainsengaging opposite sides of the drum.

2. A traverse mechanism for Winding machines having a reciprocating yarn guide gears to the other, means for transforming the intermittent rotary movement of the segmental gears into reciprocating motion, and means for transmitting such motion to the yarn guide. 1 p

' 3. A traverse mechanism having a reciprocating bar, an oscillatingshaft, connections between the bar and shaft and.

oscillating shaft, a counter shaft, a segmental gear upon the latter, the segmental drlving gear meshing alternately With the other segmental gears, and means connecting the segmental gear upon the counter shaft with a a the oscillating shaft the flexible but -substan-. p p 7 ing shaft andmeans for oscillating the shaft comprisingya rotating drive shaft, a seg- 4; Traverse mechanism having an'oscillatmental driving gear secured thereto, a gear LUO nections between the shaft and bar for moving the latter, and means for oscillating the shaft comprising a rotating drive shaft parallel to the oscillating shaft, a counter shaft parallel to the drive shaft and upon the diammetrically opposite side thereof from the oscillating shaft, a segmental drive gear on the driving shaft, gears secured to the oscillating shaft and counter shaft respectively, said gears meshing alternately with the segmental driving gear, constantly meshing gears mounted upon the oscillating shaft and counter shaft respectively constraining said shafts to turn in opposite directions, and a spring reacting. upon the oscillating shaft tending to eliminate backlash between the intermittently engaging gears.

6. Traverse mechanism comprising an oscillating shaft, a gear fast to the shaft, a gear intermittently meshing with the first named gear for turning the shaft in one direction, means for turning the shaft in the opposite direction, a crank carried bythe shaft, and a resilient device connected to the 7. Traverse mechanism comprising an oscillating shaft, intermittently meshing gears for turning the shaft alternately in oppositevdirections, a crank carried by the shaft, and a spring secured at one end to the crank and at its other to a fixed support, the spring reacting through the shaft to take up back-lash between the gears as they approach operativeengagement.

8. Traverse mechanism comprising an oscillating shaft, a rotating drive shaft par allel thereto, a counter shaft parallel to the drive shaft and diametrically opposite to the oscillating shaft, a segmental drive gear secured to the drive shaft, segmental gears alternately engageable with the drive gear secured respectively'to the oscillating shaft and counter shaft, a gear secured to the counter shaft and directly meshing with a gear fixed to the oscillating shaft, a crank carried by the latter shaft, and a tension spring secured at one end to the crank and at its opposite end to a fixed support disposed substantially in the plane defined by the several shafts.

Signed by me at Boston, Massachusetts, this seventh day of September, 1923.

ANKER PETERSEN.

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