US1866058A - Spinning frame - Google Patents

Description

S. F. ROCKWELL ET AL July 5, 1932.

SPINNING FRAME 2 Sheets-Sheet l Filed Aug. ll. 1930 nvenTors. Samuel F. RocKweH Henry A. Owen @www July 5, 1932- s. F. RocKwl-:LL ET AL 1,866,058V

' SPINNING FRAME Filed Aug. 11, 1930 2 Sheets-Sheet 2 byMMaf n M'fys.

Patented July 5, 1932 UN1TED s-TATESPATENT oi-ricia SAMUEL IF. RO('.KWIIIILLY OF NORTH.' ANDOVER. ANDHENRY A. OWEN, OF FOXIBOBl f MASSACHUSETTS, ASSIGNORS To DAVIS @QFURBER MACHINE COMPANY, or NORTH f i ANDOVER, MASSACHUSETTS, A CORPORATION `0F'MASSACHUSETTS SPINNING, FRAME j Application med Af1griisrt.11,i.naso.istria;y No. 474.361..

This invention relates to Spinning frames, and particularly to means employed therein to prolong the period of usefulness of certain parts which become worn by reason of their ycontact with the running roving.` l

The invention is particularly adapted to that type ofspinning frame in whicha twister tube is .employed to induce a temporary reinforcing twist during the drawing operation. In such kmachines a guiding device, usually a rod of steel, yis employed to direct the roving into thetubes atl the requiredangle. The constant passage of roving over the guiding device rapidly wears a groove therein. The groove thus formed tendsto prevent the free passage of yarn over the'rod, and also sub/jects the roving to frequent breakage. Furthermore,the vgroovesin the rod tend to weaken itsiniti'al resistance to the tension of thel roving to Such an extent that, in many cases, the only remedy is to renew the rod.

Itis the generahobject of this invention to distribute the wear ofthe roving upon the rod over asubstantial portion ofitsarea, thus preventing the' formation of "grooves and thereby prolonging the period of usefulness of the guiding means. i f

A further .object of the invention is to -provide asimplefand effective meansto prevent undesirable wear upon the roving guide and l permit the use of ordinary material, such as mild steel, in itslconstruction. i Y

AV furtherlobj ect of the invention is to utilize the twister` tube itself as a guideeyeto traverse thel roving along the guide rod.

A further object of the invention is to provide a spinning frame'in which' the twister tubes alone are traversed, and in which the upper guiderod, actingto direct the roving into thetwister tubes, is fixed to theframe of the'machine. l Y A further object of the invention is to Vprovide aspinning frame in' which the upper guide rod may-be adjusted vertically;A

' These and other objects Vand features willV more fully' appear'from the following [description in connection with the accomp'any- Y p Y ever,'is herein illustrated which .is similar. to v :the,twiste`,r tube presented by the UJSI Patent 'granted -to "Henry Owen, a Patent No.

outin the claimsfjq* n In the rdrawings;'Figure ljisMa-'croSs-secing drawingsand will be particularlypoi'nted tional View; through 'a portion of aspinning v frame embodying theV invention. c,

Fig. 2 illustrates a portion Iofthe spinning 'iframe showing in ,plan the parts illustrated` 1n Flgjl. A v n Flglis a plan view illustrating thel mechanismffor traversing the twister tubes.

In its broadestkaspect this'invention con-.-

templates a 'means for causing the roving, as

it passes over the upper guide rod, 'constantly to-change its pointofcontact therewith. The twister tubes in the type ofspinning vframe illustratedv are vtraversed and ythey may conveniently be utilized to produce 'the desired relativem'ovement of the roving along the guide rod. Y

In the specicfembodiinent illustrated, the desiredy result Ais accomplished by mountingY the guide rod. in a fixedp'osition near-the Ventering. end of the twister-tubes.' /As the tubes moves, therefore, the roving which'is" threaded therethrough is traversedV along the, gudeirod. l, Y

Sfncethe general details'of constructionof `a spinning frame' are well known to those Vskilled 1n ythey art it is-deemed necessary to illustrate only those portions vof a'frame which contain the'elementspof the invention and those which aredirectlyrelated thereto.

The roving "1, issuing from a "suitable sourceof supply,v passes betweena pair of driven feed rolls 2`and 3; From the feed rolls '5 rand 6, 'from which point it is ledy'tov` a spinningmechanismjof any desired confeed? rolls to produce thedesired draft.Y The Vroll 6 is rotatably supported Yin a bracket 8 which in turn is pivoted upon'thejbracket `7.

The bracketrS is swung about` its .pivot top maintain the roll. 6 yielding. engagement with the roll-5 by means of the weight 9.

1 The twisterftube*"4L maybe of anyfdesired passesv into and :throughV a' twister 'tube 4; 'and' thence between a pair of drawing rolls construction. yApreferred construction-5how-l Y 1,770,085, in which the roving 1 is threaded through a central aperture 1() and emerges from the bottom thereof to be engaged by the jaws of a twisting head 11 mounted onk the lower end of the tube. From this point the roving leads directly into the bite of ,theV

drawing rolls 5 and 6. p

The twister tube 4 is rotatably mounted in .a bracket 12 which is securedto a movable support 13. The support 1.3 is slidable longitudinally of the machine in aligned guides ways in the brackets 7 The brackets 7 are rigidlyfixed'to a supporting channel 14 extending throughout the length of the machine. In order to direct the roving into vthe upper end of the twister ,tubey .at the required angle, a guide rod'15 is provided over which the roving passes `on its way tothe Y aperture 10 in the twister tube. The rod 15 v reduced ends of the arms 18 project intera vertical slot .20 inthe'b'rackets 16.V The eX- treme inner ends of the arms 18 are threaded to receive nuts 21 by means of which the shoulders 19 of the arms 18 are drawn against the outer faces 22 of the brackets 16, thus `clampingthe arms rigidly in position.

V'The roving passesover only a portion of the periphery of the guide rod 15. When screwsdriver may be inserted through aper-` this portion becomesworn it is desirable that the rod be turned about its axis to present another portion of its area. To provide for this .adjustment the rod may be, therefore, loosely littedin its supporting arms 18 and normally secured against rotation bymeans Vof one or more set screws 26..

Y Screws 23 are mountedvertically in slots and have screw-threaded engagement with the inner ends of the arms 18. .The heads of the screws 23 bear against the upper walls of the slots 20, whilev the lower ends of the screws bear against the bottom walls iof the yslots 20; `The heads of the screws are pro- 'vidediwith screw-driver slots 24 into ,which a tures 25 which. are somewhat smaller than VVVand-located directly abovethe heads of the apertures 25. Since the screws have threaded engagement with the arms'1-8- and are themselves connedagainst vertical movement, the`ar'ms 18, after'being releasedb'y loosening the r nuts 2l, are caused to .move

heSl 20.l wWhenr-the correct ustneously by a suitable traversing mechanism,

which is connected to the support 13. As

Ythet'ubes are traversed, the contact point of the roving upon the guide rod is constantly changing throughout the length of the traversing movement. The wear upon the rod is thus distributed over a substantial portion .of its area. l i

y In conformity to the usual'practice in machines of the type herein presented two rows of Vtwister tubes are provided. There are consequently'v two tube supports 13 which must be reciprocated to produce the desired traverse.V Upon theends of the tube supports 13 are secured especially constructed connector blocks 27 by means of which the movement ofthe outer ends of the levers 28 and 29 is transmitted to the supports 13. The levers 28 and 29- are fulcrumed upon the frame of the machine at 30andv31 respectively.VIA The inner ends of the levers are provided with followers 32 and 33 which are receivedin a cam slot 34 in the cam disk 35. Thev cam disk 35 is preferably driven Vfrom some rotating. element of the machine. As Y shown herein the disk isprovided with teeth on its circumferenceY which are engaged by a worm 36 mounted on a shaft 37 which `is rotatably 'mounted in the frame of the machine. TheA shaft37 has mounted thereon a worm gear 38 which is driven by a worm 39 on the drawing roll 5. The contour of the cam slot, therefore, determines the extent of traverse ofthe twister tubes while power to traverse-the tubes is obtained from the drawing rolls, Y

When a coarseyarn is being spun or a silk .yarn in a machine not embodying the invention, a groove is rapidly worn in the roving guide. The present invention entirely eliminates the formation of such grooves, and enables a guide rod to be maintained in service supporting arms,a guide rod rotatablyA sup-` ported therein extending longitudinally of the vmachinefover which the roving passes for a. 'periodof time greatly in excess of those acting to direct the roving to the twister tubes, means operable to secure the guide rod against rotation and means actingv to move said twister tubes relatively to the guide rod whereby the point of contact of the roving with the guide rodis constantly changed and the guide rod may be rotatably adjusted to present a new wear surface.

2. In a spinning frame, feed rolls, drawin rolls co-operating therewith to produce dra t in the roving, a plurality of twister tubes through which the roving is threaded acting to produce false twist therein, a plurality of verticaladjustable supporting arms normal- 1f ly fixed in position, a guide rod rotatably sup ported in said arms actingto direct the roving to the twister tubes, a plurality of set screws having screw-threaded engagement with said arms operable to secure the rod 2U against rotation and automatic means acting to reciprocate said twister tubes longitudinally of the guide rod whereby the point of contact of the roving with the guide is constantly changed throughout a predetermined Y 2f portion ofthe length thereof and the guide Yrod may be rotatably adjusted to present a new wear surface.

In testimony whereof, we have signed our names to this speciication. SAMUEL F. ROCKVVELL.

HENRY A. OWEN.

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