US1678710A

US1678710A - Material-spooling mechanism

Info

Publication number: US1678710A
Application number: US78841A
Authority: US
Inventors: Selvig John Nilsen
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1924-07-12
Filing date: 1926-01-02
Publication date: 1928-07-31
Anticipated expiration: 1945-07-31

Description

July 31, 1928. 1,678,710

J. N. sELvlG MATERAL SPOOLING MECHANISM Filed Jan. 2, 1926 @Jeff/.

Patented July 3l, 1928.

UNITED STATES PATENT OFFICE.

JOHN NILSEN SELVIG, OF CHICAGO, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

MATERIAL-SPOOLING MECHANISM.

Original application filed July 12, 1924, Serial No. 725,660. Divided and this application led January 2,

1926. Serial No. 78,841.

This invention relates to material spooling mechanisms and more particularly to a spool support, and has for its primary object the provision of an improved device of 5 this type which permits a-filled spool to be expeditiously removed from and an empty one firmly 'locked concentrically upon a driving spindle without removal of any parts. l

This application is a division of my copending application, Serial No. 725,660, filed July 12, 1924, which has issued as Patent 1,608,249, dated November 23, 1926.

In accordance with one embodiment of this invention, mechanism is provided for locking and unlocking a take-up spool to and from its driving spindle, which comprises an expansible sleeve member rotatably secured to but longitudinally movable upon 20 a spindle and adapted upon expansion to clamp the spool between a collar rotatable with the spindle and a plurality of cam surfaces upon the member.

Other objects and advantages of this 1nvention will more fully appear from the following detailed description taken in connection with the accompanying drawing which illustrates one embodiment of this invention, in which Fig. 1 is a vertical sectional view through the improved spool locking and unlocking device; and t Fig. 2 is a sectional view taken on the line 2--2 thereof looking in the direction indicated by the arrows.

In the drawing, the improved spool locking and unlocking device of this invention is shownapplied to a take-up spool driving spindle of a wire drawing machine of the type illustrated and described in the hereinbefore referred'to co-pending applicat1on.

Referring now to the drawing in detail, the numeral indicates a take-up spool driving spindle which is continuously rotated by suitable mechanism (not shown). The spindle 10 projects from a take-up drive housing (not shown), and is provided with a bore 12 carrying substantially midway of its length a sliding block 13.l The block 13 is secured to the spindle 10 to rotate therewith by a pin 14 fixed to the block 13 and projecting upon opposite sides into elongated slots 15 formed in the wall of the bored out portion of the spindle 10. Within the bore 12 at the right-hand side of the block 13 is a sleeve 18 provided with an enlarged outer end in the form of a head 19, the peripheral surface of which is tapered inwardly from a point coincident with the periphery of the spindle 10 asv indicated at 60 20. The sleeve 18 is fixed to the spindle 10 by pins 21. The bore of the sleeve '18 sup` ports a screw 22 provided with a knurled head 23, the screw threaded shank of the screw being threaded into the bore of the sleeve 18 and adapted to engage the righthand side of the block 13.

Resting at one end against the left-hand side of the block 13 and at its opposite end against the end wall of the bore 12 is a com- 70 pression spring 24 for holding the block 13 in engagement at all times with the screw 22 so that upon turning outwardly the screw 227 the block 13 will follow to the right as viewed in Fig. 1 until the pin 14 rests at 75 the right-hand end of the slots 15. Suitably keyed to the spindle 10 is a collar 27 against whichv the inside head of the spool is clamped. Upon its right-hand face the collar 27 is provided with an annular channel 80 28, and adapted to 'ride therein is an outwardly -extending ange 29 formed upon a cone-shaped collar 30 free to slide longitudinally upon the'spindle 10. Within a hollow formation 31 of the cone-shaped collar 85 30 is a compression spring`32, one end of which rests against the cone-shaped collar 30 and the opposite end against the collar 27. `The collar 30 is limited in its movement to the right upon the spindle 10 by its en- 90 gagement lwith a pin 33 projecting from the periphery of the spindle 10.

The pin 14 fixed to the block 13 and the ends thereof which pass through the'slots 15 of the spindle 10 project into suitable open- 95 ings formed in one end of collet 35 provided with six expanding jaws 36 (Fig. 2) and which is slidable longitudinally upon the spindle 10. The free ends of the jaws 36 yare provided with an internally formed tapered surface 37 for engaging the tapered peripheral surface of the head 19 and also with an externally formed tapered surface 38, which project outside of the periphery of the body portion of the collet, and are adapted in the locking of a spool 39 upon the spindle 10 toengage the right-hand end of the bore of the spool (Fig. 1) to position the spool concentrically with the axis of the spindle and to lock it thereon, the left-hand '11.

end of the spool being supported concentrically with the axis of the spindle is as follows: It will be noted (Fig. 1) that the expanding jaws 36 of the collet 35 while in an operated position do not lie in a hori- Zontal plane, but it will readily be understood that upon being released they assume a substantially horizontal position.

To release a filled spool from the spindle 10 and replace it with an empty one, the head 23 of the screw 22 is given a few turns in a counter-clockwise direction which allows the block 13 to move to the right, due to the energy stored in the compression spring 24 until the pin 14 rests at the right-hand end of the slot 15. In moving to the right,.the block 13 through the pin 14 carriesthe collet with it, thereby allowing the jaws 36 to 'return to their normaltposition, the internally formed tapered surface 37 riding down the tapered peripheral surface of the head 19 of the sleeve 18. This also releases the tapered surface 38 of the expanding jaws 36 from engagement with the spool. The

-jaws while in their normal released position lie-wholly within `the bore of the spool. Upon releasing the jaws 36 the spring 32 functions to move the cone-shaped collar 30 to the right which will insure that the next spool mounted in position, even though its bore is a trifle larger or smaller, will be concentrically mounted with respect to the axis of the spindle 10. n mounting an empty spool upon the device, the left-hand head of the spool is pressed into engagement with the flange 29 of the cone-collar 30 until the will be moved to the left, thereb right-hand head of the spool is to the rear of the externally formed tapered -surface 38 of the jaws 36, and thereupon the head 23 of the screw 22 is given/'a few turns in a clockwise direction which due to the end of the screw 22 engaging the block 13 the collet 35 causing the internally formed tapered sur ace 37 of the expanding jaws 36 to ride up thetapered peripheral surface of the head 19 formed. on

the sleeve l8-and thereby cause a wedglng action to take place' between the externally formed tapered surface 38 and the vertical outside face of the spool head.- This causes the spool to befirmly clamped between the collar 27 and the tapered surface 38 of the jaws 36 and thereby locked to the spindle 10.

It will thus be apparent that a filled spool may be readily removed from and an empty one firmly locked to the driving spindle without difficulty and within a short time, as well as without detaching any parts of the device which might` become misplaced or lost. Also due to the spring pressed coneshaped supporting and guiding collar 30and the tapered surface 38 of the jaws 36, the

4 to move the outside end of the spool outside of the tapered surface 38 of the jaws 36, thereby preventing jamming of the locking parts, with the result that no tools are required to lock or unlock the spool 39 to its driving spindle.

What is claimed is:

1. In a spool locking device, a driving element, a cam member having an offset tapered surface extending across a portion of the outer surface of and engageable with one head of a spool and arranged to rotate with said element, means rotatable with the driving elelnent and having a tapered surface engaging another head of the spool, and means for causing relative movement between said means and member to clamp the heads between the tapered surfaces.

2. In a spool locking device, a driving element,.a member provided with a plurality of offset tapered cam faces arranged to rotate with said element, said cam faces designed to be projected outside of the bore of a spool and into engagement with one head of the spool, means rotatable with the driving element and having a tapered surface engaging another head of the spool, and means for actuating said member to.clamp the heads of the spool between the offset tapered cam faces of said member and the tapered surface means rotatable with the driving element.

3. In a spool locking device, a driving element, an expansible arbor member arranged to rotate with said element and relatively movable in a longitudinal direction, said member provided with a cam face designed to engage one head of a spool, a conical collar rotatablewith the driving element engaging another head of the spool, said element and member designed upon a relative movement in a vlongitudinal, direction to cause the expansion of said member and thereby clamp the heads of the spool between the cam face of the member andthe collar rotatable with the driving element,y and means for imparting a relative longitudinal 1lmovement between said element and mem- 4. Ina spool locking device, a driving element, a cam member engageable with one head of a spool and arranged to rotate with said element, means rotatable with the driving element engaging another head of the spool, means for causing relative movement 4between said means and member to clamp the head 4therebetween, and resiliently mounted means associated with said first mentioned means and having a surface engaging the second mentioned spool head for vcausing the spool to move longitudinally into a freely removable position upony a reverse actuation of said second mentioned means.

5. In a spool locking device, a driving element, aU member arranged to rotate therewith provided with a plurality of concentrically arranged cam faces, onel of said cam faces extending beyond the bore and engageable with one head of a spool and another cam face engageable with a cam face provided upon the outer end of the driving element, means rotatable with the driving element engaging another head of the spool, and means for causing relative movement between the latter two mentioned cam faces to cause the heads to be clamped between the first mentioned cam face and said means.

6. In a spool locking device,`a driving element, a conical collar surrounding theelement forv receiving the bore of one head of a spool, resilient means normally maintaining the collar in a predetermined position longitudinally of the element, and an eX- pansible arbor carried by the element and provided with a cam face for engaging the other head of the spool, thereby moving the collar against the resilient means to resiliently clamp the spool between the cam face and the collar.

7 In a spool locking device, a hollow shaft for receiving a spool, an'internally threaded bushing secured in the end thereof and having a cam faced annular head, a member slidably mounted within the shaft, a-member threaded through the bushing and engaging the slidably mounted Vmember for moving the slidably mounted member longitudinally of the shaft, and a clamping member eX- terior of the shaft and having one cam surface engagingy the cam face of the annular head and another cam face engaging and thereby clamping the spool upon the shaft, said clamping member secured to and movable with said slidable member.

8. In a spool locking device, a hollow shaft for receiving a spool, an internally threaded bushing secured in the end thereof and having a cam faced annular head, a member slidably mounted within the shaft, a member threaded through the bushing and engaging th-e slidably mounted member for moving the slidably mounted memberlongitudinally of the shaft, resilient means mounted within the shaft and maintaining the slidable member in engagement with the threaded member, and a clamping member exterior of the shaft and having one cam surface engaging the cam `face of the annular head and another cam face engaging and thereby clamping the spool upon the shaft, said clamping member ,secured to and movable with said slidable member.

9. In ba spool locking device, a hollow shaft for receiving a spool, an internally threaded bushing secured in the end thereof and having a cam faced annular head, a member slidably mounted within the shaft, a member threaded through the bushing and engaging the slidably mounted member for moving the slidably mounted member longitudinally of the shaft, a conical collar slidably mounted around the shaft, resilient means interposed between a portion of the collar and the shaft. for maintaining the collar normally in a predetermined position,

and a clamping member exterior of the shaft and having one cam surface engaging the cam face of the' annular head and another cam face engaging and thereby clam ing the spool upon the shaft against the fldrce exerted by the resilient means on the collar, said clamping member secured to and movable with said slidable member.

In witness whereof, I hereunto subscribe my name this 17th day of December, A. D.

JOHN NILSEN SELVIG.