US1728417A - Cop or cone holder - Google Patents

Description

Sept. 17, 1929. E C, LEWIS COP 0R GONE HOLDER I Filed Dec. l5, 1926 2 Sheets-Sheet 1 Sept. l 7, l 929. E. c. LEWIS cor oR GONE HOLDER 2 sheets-sheer 2 Filed Dec. 13, 1926 fa 2.9 Maf 25 Patented Sept. 17, 1929 UNITED STATES PATENT OFFICE EVERETT LEWIS, F PROVIDENCE, RHODE ISLAND, ASSIGNOB TO UNIVERSAL -WINDING COMPANY, 101i"v BOSTON, MASSACHIUSETTS, A CORPORATION 01j' MASSA- cHU'sETzrs COP 0B GONE HOLDER Application tiled December 13, 1926. Serial No. 154.462.

This invention relates to cone-holders or mandrels for use with winding machines l'and other textile apparatus and consists of Vimprovements in the construction and method of operation of the same.

The invention consists in generalfin pro-v viding a Arotatable holder or mandrel for supporting a conical paper tube or core on which yarn, thread or other attenuated material is to be wound.

A particular object of the invention is t-o "provide a device of the type specified which will automatically center and aline conical tubes of varying taper, while gripping the tube on the holder to secure it rotatively therewitlrand to hold it from longitudinal displacement thereon.

` Another object of the invention is to pro- Y vide a cone-holder of the type. specified having frictionless bearings which require no l lubrication.

Another vobject of the invention is to provide a cone-holder of simplified structure Ywhich'is economical to manufacture and of j greater' durability and efficiency in use.

Further objects of the improvement are set forth in thefollowiner specification which describes a preferred embodiment of the inventi'on als illustrated b v the accompanying Ara drawings. In the drawings:

Fig. 1 is a longitudinal"sectional view of the improved cone-holder, taken in a plane interscctingrits axis of rotation;

FigmQis a side View of the cone-holder slightlyV reduced in scale and illustrating a cone-tube of certain taper fitted thereto;

-Figl is a similar View showing the selfcentering means as adjusted to the interior of a cone-tubeof different taper; and

F 1g.v 4 is afvle-w showing the ymanner 1n which the cone-holder is operated to rgrip tri or release the cone-tube or shell placed there- Rcferringto the drawings` 2 designates a wardly from an varm 3 formingr a part of or connected with the winding machine or other apparatus. i

As herein shown the spindle 2 has Aan enlarged flat-sided butt 4 which is tted `to a slot at the end ofthe arm 3'and pivoted to turn on Aa cross-bolt or stud `5 extending through the sides of the arm. The butt-end 4 of the spindle i2 is formed with a V-shaped notch 6 adapted to receive `the bent end k7 of a flat spring 8 which is fastened to the side of the arm 3 by a bolt 9. The spring 8 normally `holds the spindle 2 in position projectingr at right-angles to the arm 3, the end Lof the spring being releasable from the notch 6 under pressure to permit the spindle and its cone-holder to be swung outwardly into the position illustrated-in Fi 4 of the drawings. Thisfarrangement, wliich is common ,to devicesof the present type, provides for swingafingrr `the cone-holder out of operative position when yplacing the conetube thereon and when doiing the completed cone or cop therefrom. The swinging action ofthe spindle is also employed to opermeans forms one feature of the present inf Vention and will be more specifically dcscribed hereinafter.

The spindle 2 is turned down or reduced in diameter at 11 kto receive a collar or bearing-ring 1Q which is forced tightly thereon against the shoulder 13. The bearingringr 12 is provided with a race for a series of balls 15 rotatably supportingY an outer ringr or annulus 16. Theringr or annulus 16 forms an end ythrust-bearing for the rotatable shell or mandrel 20 which constitutes 'the holder for the cone-tube C.

The cone-holder shell 2O is constructed with a. relatively long sleeve-like hub 21 which is bored to receive a tubular sleeve or bushing 22, preferably vconf-ftructed kof impregnated wood, fiber or other oil-less'bearingr material. The bushing,r 22 is forced into the bore ofthe hub .21 to secure it rotatirely therewith; its bore being fitted tothe reduced portion of kthe Aspindle :2 to permit it to rotate freely thereon. The outer kend of the spindle Q vbored axially to receive yan expanding -bolt The inner end of the bore is threaded to receive the threads of the bolt while its outer end is of tapered or conical form and split longitudinally at 26. The outer end of the bolt has a similar conical section fitted to the tapered outer end of thebore in the spindle with the sides of its projecting portion flatted off at-27 to provide a head -for-turningthe bolt with a wrench. Surrounding the outer end of the spindle 2 is a collar 28 which is secured thereon ,by expanding the split end of the spindle throughmeans of the taper-ended bolt- 25. The collar 2S. abut-s the outer end of the bushing 22 to hold the shell 2O lon# gitudinally of the spindle 2, the opposite end of the hub 2l of the shell being held by the thrust-bearing 16.

l The outer end of the hub 21 'of the shell 20 isgreduced in diameter at 29 to adapt it to receive apsliding sleeve or collar which constitutes the self-adjusting means for centering the cone-tube C on the holder. f The collar 30 is provided with a slot 3l which is engaged by a screw 32 screwed into the reduced portion 29 of the hub 2l'. A helical spring4 33 Asurrounds the reduced portion 29 vof the hub 1.21 between the collar 30 and a `shoulder B4 on the hub-- The spring 33 tends to urgethe collar 30 outwardly on the `hub121 to hold it snugly within the tapered 30.

interiory oftliel cop-tube or shell C. lVhen tubes `vof dilferent taper areapplied to the 4holder the collar 3() adjusts itself longitudinally thereof to center and aline the forward end of the tube vin the `manner as later explained.

ffThe rearward or butt-end ofthe tube or .-'zshell C is received on an enlarged conical @boss or annulus disposed at the base end I of the shell or holder 2O and supported from -end of the tube will still fit quite snugly about the enlarged boss or annulus 35 of the holder 20 when forced thereon, and the slidable collarBO at the forward end of the holder will adjust itself longitudinallyy of the tube to firmly engage the interior thereof, whereby to center the tube on the holder,

or, in other words, to hold it concentrically with respect thereto. v

. The means for securing the cop-tube C in place on the holder is carried by the enlarged section or annulus 35 and" comprises a plurality of rockable rdogs or gripperlevers 40. As herein shown there are two dogs 40, constructed in the form of flat blades having teeth 41 adapted to bite into the interior of the cone-tube C. The blades 40 are held in radial slots 37 cut through the shell and its flange or web 36, the bottom of the slots 37 intersecting the periphery of the hub 2l. The blades 40 have roundedv ends which-rest in the bottom of the slots 37 to adapt them to pi'vot thereon -wherebytheir opposite ends may be moved radially outward to engage the teeth 4l with the interior of the Cop-tube C or to withdraw them inwardly therefrom. The

.blades 4() are held in placein their slots 3T by means of a split spring-ring or annulus 42 sprung into a circumferential groove 43 scored in the periphery of the shell 35. The ring 42 passes throughnotches 44 in the blades 40 and is prevented from turning circun'ifercntially of the groove 43 torelcase the blades by means of a. pin 45 driven into the shell 35 intermediate the ends of the ring, see Fig. 2.

The free ends of the blades 40 are formed with circular ears or lobes 39, the edges of which are engaged by the tapered periphery of a sliding sleeve 46. The sleeve 46 is adapted to slide on the reduced inner end 47 of the hub 2l of the shell or holder 2O and is formed with an .inclined surface 48 for wedging the blades 40 radially outward. The forward end of the sleeve 46 is reduced in diameter to'form a shoulder 49, and a helical spring 50 compressed between the shoulder and the web 36 of the holder 2O acts to slide the sleeve to the right as viewed in Fig. l. The force of the spring 50 therefore tends to slide the sleeve 46 to cause its taperedportion 4S to wedge the blades 40 outwardly topress their prongs or teeth 4l into engagement with the interior of the cop-tube C. Preferably, the sleeve 46 is provided with a circumferential iin or flange v52 which is adapted to bring up against the sides of the ears 39 on the blades 40 to prevent the sleeve from being slid too far to the right as viewed in Fig. 2. This construction eliminates the possibility of the sleeve being forced into frictional contact with the side of the arm 3.

To release the blades 40 from holding engagement with the cop-tube C the sleeve 46 is slid to the left/against the pressure of the spring 50, this action being accomplished by swinging the icone-holder bodily into the position shown Iin Fig. 4. Then the cone-holder is swung around in this lll manner with the spindle 2 pivoting on the bolt 5 the rounded cam surface l at the end of the ,arm 3 will engage against the end of the sleeve 46 to slide the latter to release its wedging action on the dogs or blades 40. Vv'hen the blades 40 are thus released from the wedging action of the sleeve 46 the constrictive spring-action of the ring 42 will draw them inwardly to disengagetheir teeth 4l from the interior of the cop-tube C as clearly shown in Fig. 4 of the drawings.

The method of operation of the complete device is as follows: W'hen the device is used in connection with a winding machine the cone-holder 2O is first swung outwardly into the position shown in Fig. 4 to render it convenient to place the cone-tube C thereon. The operator simply grasps the conetube C in the hand and forces its larger end snugly onto the exterior of the boss or shell 35. Where the tube C is of relatively steep pitch or taper the engagement of the sliding collar 30 with the interior of its smaller end will force the collar rearwardly against the pressure of the spring 33. In other cases where the cone-tube is of less pitch or taper the collar 30 will be held farther out toward the end of the cone-holder to maintain its outer edge bearing against the interior of the cone-tube to center the latter with respect to the holder, see Fig. 3.

After the cone-tube C has been slid onto the holder 20 in this manner the operator swings the holder bodily inward to set it in cooperative relation with respect to the other elements of the winding machine.

VAs the operator moves the holder in this manner, meanwhile pressing the cone-tube C towards the base end of theholder, the sleeve 46 is released from the camming action of the arm and thereupon the spring 50 comes into play7 to slide the sleeve 46 longitudinally to cause it to wedge the dogs 40 outwardly to pierce 'their teeth 41 into the interior of the tube C which is made of fiber or similar yieldable material. The tube C is thus gripped securely to the holder with its interior supported at widely spaced points to hold it concentrically with respect to the axis of rotation of the bolder.

It will be observed from the above that my invention provides a particularly simple, compact and efficient device for the purpose specified and one in which the parts are designed for economical manufacture. The operating-mechanism of the device is practically automaticI in action and is adapted to not only grip thi` tube to the holder, but to center it thereon while providing for the use of tubes of different taper or pitch. This latter feature of considerable importance. since heretofore where the cone-tubes varied slightly in size or in taper they could not be held securely on the holder or mandrel. That is to say, some tubes would fit properly while others could not be held securely and would become loose under the winding or other operation.

As another feature of the inveption the present improved device does away with the necessity for oiling the mandrel or holder while providing for greater durability of its bearings. The elimination of lubrication prevents oil from being thrown or spattered on to the Vmaterial being wound yor otherwise transferred or treated and therefore saves damage to and vaste of the yarn and thread. v

lVhile the device is herein illustrated in a preferred embodiment it is to be understood that various modifications may Abe made in the structure and arrangement of its'parts without departing from the spirit or scope of the invention. f

Therefore, without limiting myself in this respect, I claim:

l. In a deviceof the type. specified, the combination with a dead spindle, of a ballbearing at one end thereof, a conical shell having a hub cooperating with the ballbearing to take the end thrust of the shell, a bushing of friction-reducing material held in the bore of the hub and rotatable on the spindle, and means for retaining the shell in place on the spindle.

2. In a device of the type specified, the combination with a dead spindle, of a ballbearing at one end thereof, a conical conetube holder having a hub arranged with its end engaging the ball-bearing to take the end thrust thereof, a bushing of friction-reducing material inserted in thehub of the holder and rotatable on the spindle, and a collar secured to the outer end of the spindle abutting the end of the bushing to take the forward andthrust of the holder.

3. In a device of the type specified, the

combination with a dead spindle, of a. conetube holder having an extended hub, a bushing of friction-reducing material fitted to the bore of the hub and rotatable on the spindle, a ball-bearing on the spindle for taking the end thrust of the holder in one direction, a. collar at the opposite end of the spindle for taking the end thrust of the holder in the other direction, and means for eX- panding the end of the spindle to secure the collar in place thereon.

4. In a device of the type, specified, the combination of a dead spindle having an axial bore/at one end which is interiorly threaded atk its inner end and tapered at its outer end. said spindlebeing split to adapt its end to expand, a screw having a` tapered end-portion fitted to the bore in `the end of the spindle. a cone-holder'rotatable on said spindle, and a collar sui-'rounding the end of the spindle and Lheld in placeby the expanded split portion thereof to retain the cone-holder in position on the spindle.

5. In a device of the type specified, a conetube holder formed with radial slots, blades loosely mounted in said Slots with their ends engaging the bottom thereof, means for holding the blades longitudinally of the slots, and means acting on the blades to roel: their ends radially outward to engage. the interior of the cone-tube.

G. limi cone-tube holder having a shell lill) f fitted-to receive the lbase end of the-tube and providedwith radial slots, the combination of blades receivedin said slot-s with their forward ends engaging the bottom thereofv andtheir rearward ends` provided' with means for engaging the -interiorof Vthe conetube, a springfring' engaging the 'blades' to Y holdfthem-i'n pliace Ainthe slots andy tending 'to ro'elthev blades inwardly torelease their lo endsrfrom the tube7 andmeans for wedging -lfthebladsfadiallyoutward in the slots to Y engage their ends with the tube to secure the latteriniplace `on the holder. x "7.-A cone-tube holder vhaving a conical 135V shell forreceiving the'baseend of the lconetube; said shell provided with radial slots and a circumferential groove intersectingl theslots,'blades held in said slots with their ends engaging the bottomV thereof and proi l 0 vided with notches registering with the circumferential grooveon the shell, a spring-Y ring' seated in the groove on'the shell and -`engaging the notches inV the blades',L and means acting upon the'ends of the blades to rock the latterradiall)7- outward against the constrictiveaction of the spring-.ring whereb'y toengage the vblades with the cone-tube to sec-ure it infplace on the holder.

' '8. In a cone-tubeholder, the combination jofa conical/shell for receiving the base end' of the tube, said shell' formed with radial slots and a circumferential groove intersecting said slot-s'blades received in said slots 'with their'ends engaging the bottom thereof and provided with notches registering with thecircumferentialgroove on the holder, a l1 spring-ring seated in the groove on the 'holdf :er and engaging the notches in the blades to' hold them: in place in vthe slots while 'l0 adapting them-t0 rock therein, a sleeve slidable aXially'` )fthe holder and formed with a tapered'periphery Vadapted to act with a wedging effect onV the blades tok force them vradially outward to engage them with the 45 cone-tubeheld ontheholder, and means for sliding said sleeve.

Y v9.- In a'cop-tnbe holdeiythe combination of fla-shell for receiving the tube, radial blades i frockablymounted on the-shell and formed 59 withfears atQtheir ends, anda sleeve slidable axiallyvof the 'shell and having a-tapered 'i periphery forl engaging'the ears lon the i 'fblades tof movethe'latter radially outward toen'gage them Wit-h'the tube on the holder, said sleeve providedwitha circumferential flange adapted to contact" with the sides of the -ears on the blades to limit the sliding movement of the'sleeve- In testimon),7 whereof I hereunto aHiX my signature. .t 1 y EVERETT QLEWISL sa. l

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