US1888727A - Stripper for removing coils of wire from a drawing head - Google Patents

Description

Nov. 22, 1932. c. D. JOHNSON 1,888,727 STRIPPER FOR REMOVING COILS 0F WIREFROM A DRAWJING HEAD Filed Feb. 9, 1951 a SheetS -Sheet 1 Fig. i

lnvenTm': Chafles D. Johnson WW Wszf ATTys.

Nov. 22, 1932. c. D. JOHNSON 1,833,727

STRIPPER FDR REMOVING COILS OF WIRE FROM A DRAWING HEAD Filed Feb. 9. 1931 '3 Sheets-Sheet 2 lnve nTov.

Chofles D. Johnson WM Maw I ATTys. a.

Nov. 22, 1932. c, JOHNSON 1,888,727

' STRIPPER FOR REMOVING COILS OF WIRE FROM A DRAWING HEAD Filed Feb. 9, 1931 3 Sheets-Sheet 3 Fig.5

\nvenTor. Chufles D. Johnson WW WIW ATrys Patented Nov. 22, 1932 i v UNITED S AT S" & WIRE COMPANY, me, OF MASSACHUSETTS PATENT OFFICE CHARLES 1 .JQHINSQN or WORCESTER, AS H ETTS. A IG' QR To JOHNSQN STEEL wow-sue, MASSACHUSETTS, A CORPORATION OF S BiPI B REMOVING cen r FROM DRAWING I 'This invention relates to strippers such as are used in wire mills for removing bun.-

dles or coils-of wire from the drawing heads or drawing blocks.

In the manufactureof wire it is customary to draw the wire through dies to reduceit tothe proper size and then to wind the drawn wire on a drawing block which is in the na ture of a rotary drum. The drawing block io usually' furnishes the power necessary to draw the wire through the dies.

any drawing block the coil or bundle of wire is removed from the block. This is common "1 done by means of an apparatus termed a stripper and the present invention "relates to a device ofthis type. I 1

One of the objects of the invention is to provide a stripper for thispurpose which 26 1s designed to operate from the outside of the coil of wire, and which, therefore, may be describedas an"outs1de stripper, as distinguished from thestripp'er'wh'ich is now;

commonly used and which operates-from the inside of the coilsof wire, and which'may be referred to as an inside stripper] 0116' advantageresulting from the use of the outside stripper is that it can be used" with a water cooled drawing block without materially reducing the water cooling area;

In order togive' an understanding of the invention I have illustrated in the drawings;

aselected embodiment thereof Which *Will now be described after which thenove'l fea- Fig. 2 shows the stripper closed and in the act of removing a bundle of wire fromthe" block; 4 Fig. 3 is atop plan view of the stripper -shown in in Fig. 2with apart broken out; Fig. 4'. is asec'tion on the line 66, Fig; 2.;

Fig. 5 is a section on the line 7 7, Fig. 2;

Fig.6 is a sectionntheline' 8+8, Fig.2;

In the drawings 1 indicates a rotary draw ing'block ordrum'onwhich wire 2is being After a sufficient amount of wire has accumulated on yoke 15.

Application filed. February 9,1931. SeriaI Ne; 514,509.

wound, It will be understood,o f course, thatv the drum is power drivenaiid in the ilhlS-r trated embodiment of the inven'tion the druni is a water cooled drum, it havingan interior chamber through which water is flowing topreventithe drumfrom'being heated from the heat of the wireias it-is wound thereons. e i 'As stated. above one. purpose of the pres ent invention-is to provide a'stripper which can be used in connection with a water cooled block without interfering with the water 0001- I ing operation by reducing the -size'of the water chamber and forthis purpose the strip per is made to act .on the wire bundle from the outside rather than from the inside. d

A form of stripper embodying my invenper comprises a supporting frame?) which is tion is shown in the drawings. This stripformed with a central hub member 4 and sup porting arms 5 rigid therewith and extending radially; therefrom. The supporting.

frame also includes a member 6 which is connectedlto thearms 5 by suitable linksil, The

member 6 is shown as. having an eye '8 to" which a supportingcable' or chain 9 maybe attached. '1

Each supporting arm 5 has a stripper arm 10 pivoted toits outer end as at 11. The low-' er end of each stripper arm isbentinward ly l 8'0 to constitute a wire-engaging finger '12. The l upper end of each stripperarm is "also. bi t' inwardly as at 13 and is connected by a link 14 to a yoke member 15.. Theyoke member 15 is swivelled on the upper-end ofan actu ating sleeve 16 whichextends through and is slidably mounted in the hub 4. This sleeve '16 is shown as having an annular groove l7 atits upper end iniwhich the yoke 15 is received;

The yoke '15 and sleeve 16 are thus held from movement relative to each other in the? direction'of the axis-of the sleeve but the j sleeve'is' capable ofturnin'gin the hubl andf With this construction thevertieal move- 1 i ment of the sleeve1 6 through thehub lhwill operate through the yoke 15 andlinks 14 to swing the stripper arms 10 about their pivots 11. When the sleeve'is infits lowered position shown in'Fig. 2 the lower ends of the st-ripper arms will be spread from each otherand through the supporting arms 5and the pivotal connections 11 of said arms. with the V stripper arms. I

, 'When the sleeve is raised through the hub into theposition shown in Fig. -6;-the-lower end of the stripper arms-will be moved toward each other and the latter will be in closed position.

. The e-mass er" Sa -spas a es. *2 p the locking projection 23 will have been carried to the lower end of the slot 24 and fromthe drawing block 1 consists in lowering the stripper into the'position shown in v gers l2zjinto the horizontal grooves 20.uncle'r- 19. andsaid fingers will strip the coil .18 of fiwire fromthe drawingblock. During this stripping operation the lifting. force forlifting the strippervarms is applied thereto- 7 through the'upper ends. of the inwardly-dierected, portions 13 thereof 'a's will be present- The head 6 is shown as having a loeking 22 secured thereto axially thereof and this;

locking pin extends into the sleeve 16-as shown 7 Y best in Fig.6. The lower end ofithe locking 91 pin 22.11% a projection'orfinger 23 -extending laterally therefrom througha slot 24.. formed V in the sleevej16'. This slot has'a vertical por- T tion 25 and a horizontal looking portion 26 at its lower end. 27 indicates an arm or han- 5- d1 secured-to the sleeve 16 and by which the latter may beturned. 1

in adjusted position by a setnut 30; I I

,The cjlosing of the stripper arms isaccomplished by the engagement of thepstop screw 29-with the upper. end 31 of the spindle ofthe drum orldrawingblook 1 during thelowering of the stripper. Fig. 1 shows the stripper, with the} stripper arms open,'.be

ing lowered into position to engage the wire j and. with the stop; screiwf29 about-Ito: engage the upper end 31 of the blockspindle. During further lowering? movement the screw.

29- engages {the upper end3ljof the spindle therebypreventing further downward'movementof the'sleeve 16 and as'the lowering-of- '6 ;Tthe supporting frame of the stripper con-- Fig. 11 while the stripper arms are in open JQE inoperative position during-which operation the :fingersl12atthe lower ends; of :said arms f1 pass down outside :o'f the'coil of,wire on the drawing block 1, and'then closing the 'strip- V per armsbymovingthem'into. the dotted line v V position Fig. 2 therebyfto introduce thefine' arms arethus in their. closed position the lifting force-required ;to raise the stripper neath the wire on the block, and thereafter. 90 1 'to. raise thestripper withithe fingers in the "elosedlposit-ion as shown in full lines-Fig. 2, duringwhichoperations thetips of the fin gersel2fwill move upwardly in the. grooves tinues the hub 4 and supportingarms 5 will move downwardly relative to the sleeve 16,

or in other words, the sleeve 16wi1lhave an upward movement relative to the supporting frame. ,This' relative -movement operates through the lug 15 and arms 14 to close the ing block; .u

stripper. arm's into the, position shown in;

When the stripper are fully closed theioperator then. grasps the handle 27* and turns the sleeve to carry the projection {23 into. thehorizontal locking portion '26; of the 'slot 24' as indicatedin Fig; 2. Thislocks the sleeve .16 in: its raised position relative tothe hub 4 and thus locks the, stripper arms in'their closed relation. 'Whenthestripper and the wire bundle is transmitted"from-the lifting oablei9 tothelocking pin 22 and thrOughthe projection 23 and, slot 26 tothe' sleeve16 andfrom the sleeve 16 through-the I 7 links 14 tothefupper ends of the stripper "arms so that the stripper arms laresupportedj from their upper ends and are'thus held *in their closedrelation. r q 7 I claim: 5

1. A stripper for stripping wire bundles from adrawing bloo'k,;sa=id stripper comprising a supportingframe having a central hub andradiallyeextendingarms, stripper arms pivotally mounted tofsaid radially-extend: ing arms; each stripper arm having at'itslowe er end an inwardly-directed finger, a: sleeve member extending through and slidably 1 mounted in saiduhub, links connecting the";

upper ends of s'ai'dfstripper arms tosaidsleeve,movement' Iof'the sleeve through the hub swinging the stripper arms from inoperative to operative position, (and means to lock said arms in their operativeposition.

2. A stripper for stripping wire bundles;

from adrawing block, said stripper compris-p ing a supporting frame 1 having a central hub and radially-extending arms, strips per arms pivotallymounted to said radiallyextending arms, each jstripper' arm having at its lower end an inwardlyrdirectedgfinger,

a sleeve member extending through andslidably mounted in said hub,- links connecting the upper ends of saidvstr'ipper arms to said sleeve, upward movement of said .sleeve. through said hub 'swinging'saidarms from theirv inoperative to operative position, and means to "lock the sleeve infitsfraised position.

8. A stripper. wire from a drawing block, said stripper-j.eomprisingla supporting framehaving. a centralhub, r a- I dially-extending supporting arms rigid therewith and a head connected to said arms and provided with means for the attachment of a suspending cable, a stripper arm pivotally connected to the outer end of each supporting arm, each stripper arm having an 4. A stripper for stripping wire from a drawing block, said stripper comprising a supporting frame having a central hub, radially-extending supporting arms rigid therewith and a head connected to said arms and provided with means for the attachment of a suspending cable, a stripper arm pivotally connected to the outer end of each supporting arm, each stripper arm having an inwardly-directed finger at its lower end, a sleeve slidably mounted through said hub,

means connecting the upper end of each stripper arm to said sleeve, upward move ment of the sleeve through the hub operating to swing the stripper arm from open to closed position, a locking pin secured to said head and extending into said sleeve, the latter having a vertical slot with an offset portion and a projection carried by said locking pin and operating in said slot to lock 7 I the sleeve in raised position.

In testimony whereof, I have signed my name to this specification.

CHARLES D. JOHNSON.

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