US2349639A

US2349639A - Yarn-package holder

Info

Publication number: US2349639A
Application number: US425309A
Authority: US
Inventors: Hans J Theiler
Original assignee: Whitin Machine Works Inc
Current assignee: Whitin Machine Works Inc
Priority date: 1942-01-01
Filing date: 1942-01-01
Publication date: 1944-05-23
Anticipated expiration: 1961-05-23

Description

y 1944- H. J. THEILER YARN-PACKAGE-HOLDER Filed Jan. 1, 1942 2 Sheets-Sheet l H. J. THEILER 2,349,639

YARN-PCKAGE-HOLDER Filed Jan. 1, 1942 2 Sheets-Sheet 2 Patented May 23, 1944 YARN-PACKAGE HOLDER Hans J. Theiler,

Whi

Whitinsville, Mass assignor to tin Machine Works,

tinsville, Masts, a

corporation of Massachusetts Application January 1, 1942, Serial No. 425,309 11 Claims. (Cl- 242-131) The invention is an improved holder for the supply packages for textile machines such as rewinding machines and the like, and the purpose is to provide for quicker and simpler placement of the packages on the and in such way as to hold them at an appropriate low angle without danger of their being accidentally dislodged and also with the least likelihood that the yarn on the package will be injured in the process of placing it.

To this end the invention consists of an organization of parts as exemplified in the accompanying drawings.

Fig. 1 is an end elevation of so much a known rewinderas is necessary for showing the relation of the invention thereto.

Fig. 2 is a side elevation of one of the yarnpackage-holders.

Fig. 3 is a rear view thereof in the direction of the arrow III in Fig. 2.

Fig. 4 is a planoi F 3; and

Fig. 5 is a, horizontal section of Fig. 3 on line ii-V.

.In the drawings the structure marked l and la is the rack or creel of an automatic rewinder, some of the parts of one of the winding heads thereof bein indicated at 2. On the horizontal rails, Ia, of this creel the supply packages 3 for all of the winding heads are held, non-rotatory and at an angle adapted to permit the yarns or threads to be drawn oil axially and in a direction which approximates horizontality in the upper rows, herein referred to as a low angle. In this arrangement the yarns are commonly trained over a longitudinal lease-rod and tension mechanism indicated generally at l and passed thence downward to the traversing thread guides 2 of the respective winding heads 2.

In order to accommodate the low angle and yet avoid the possibility that packages will be displaced and fall into the'delicate mechanism of the winding heads it is customary to fasten each supply package on its support as by means of an expanding post or mandrel, on which the package is placed, the center hole of the package so as to'lock it irictionally thereto and notwithstanding that the hole may be tapered.

a According to this invention, in its preferred form, the package post is made expansible in a.

simple way and so as to have a very considerable area for frictional contact with the core or the yarn package, thus promotin security of attachment without need to resort to special or extra gripping means, though such extra means supporting rack or creel and which is expanded within can be added if desired. The yarn packages are commonly wound on paper tubes or cones, which are smooth on their interior surfaces so that friction must be mainly relied upon for holding them in place. In this invention, in its preferred form, the post is formed of a sheet-metal strip first bent or shaped to a curved cross-section approximating that 01 the interior oi the package cone, and then bent and shaped at its middle to form a tapered, two-legged post 5 adapted to enter the core of the package. By the bending and shaping operation the tip of this post hecomes rounded or bluntly pointed as indicated at 8, so that it,is incapable of doing any injury to a package in the process of replacement. The two legs together provide a substantially coneshaped post which can be expanded or allowed to expand against the interior of the package, fitting the latter in more or less continuous sur-, face contact. If the post is made a little longer than half the length 0! the package, as indi cated in the drawings, it is found that the triotional grip is suflicient for all practical purposes.

This post is held by its two legs on a rocking support which in the present case is a shaft 1, journalled in a fixture or bracket 8, which is set-screwed to one of the rails of which the creel is constituted. By rocking this support or shaft I the post thereon is caused to assume the forward or yarn-delivering position at the low angle above referred to, when turned in one direction, and a more or less upright position, above or in the rear of the rail, indicated in the dotted lines of Fig. 1, when turned in the rearward direction. In this latter position the attendant can conveniently and quickly place a new package on the post from the rear of the machine with the least likelihood of dropping it into the winding mechanism below. A handle 8 is applied to or formed on the rocking support I on the end opposite the post carrying end and is ordinarily used for shifting the post between its two positions. By the same motion the post is caused to contract when swung rearwardly and expand when swung forwardly with the package upon it, being always contracted when in its rearward or package receiving position. This action is caused by a cam engagement with the fixed bracket 8 and can be variously designed but, in the present case comprises a radial pin in in the shaft I coacting with an inclined surface H on the bracket and with a recess l2 at one end of the cam surface. When the rock shaft is turned .rearwardly the pin I0 rides up the cam surface i l thereby endwise shifting the rock shaft and drawing the outer post leg inwardly or toward the other leg, thus contracting the post. When the pin it reaches the notch or recess I2 it is retained therein, the post being contracted until dislodged by the attendant. 4

When the post is constituted of strip material of sufficient resilience its own springlness can be relied on for the expansion, but in other cases a coil spring such as I: intervenes between the two legs, for spreading them apart. The bracket wall 8* (Fig. 4) at the front end of the cam slope ll constitutes means for limiting the forward movement of the post and holding it in its desired or low-angle'position. The notch I! at the rear of such slope is one form of means, efiective on the backward movement of the post, for limiting its rearward movement and holding it in its upright position for core-removal and package replacement.

The attachment of the post legs to therock shaft is accomplished in the present case by clamping the outer leg between a nut screwed on the end of the shaft and the hub H of a pad shelf I6 non-rotatably fixed to or pressed on the shaft. On this shelf it is customary to place a pad of soft material It, like sheep's fleece, the function of which is to limit yieldingly the extent to which the package can be thrust on the (contracted) post and also to permit yarn to be drawn on from the butt end of the package without restraint from pinching. The shelf hub i4 is laterally curved to fit the curved section of the post leg, thereby holding the post non-rotatably to the rock shaft and producing a firm connection without the need of a squarepunch hole in the post leg. It is pointed out that the pin it supports the weight of the package when the post is in the low angle position and at such time bears with sufficient pressure on the end wall 8*. to smother any looseness incident to the fact that the pin is not at such time pressed by the spring against the cam slope I t. In the fully expanded condition the collar ll takes the pressure of the 'spring as indicated in Fig. 4.

It will be understood that the bracket 8, being set-screwed to a round creel rail, can be set thereon at any angle required for causing the post to point toward the lease-rod, thus adapting the device for use at any elevation in the creel that might be most appropriate and thus allowing the yarn to be drawn oiI axially under all conditions.

I claim:

1. In a textile machine having an upstanding creel comprising rails at the rear of said machine, yam-package-holders on such rails, each comprising a substantially horizontal rocking support having a crank handle and an expansible yarnpackage post fixed thereon, and adapted tohold said post either in an angular position pointing forwardly of said rail or in a position in rear of such rail whereby yarn packages can be placed on said posts from the rear of the machine, and means including a cam element carried by said rocking support for causing expansion of said post coincident with the forward movement of said handle.

2. In a textile machine, a yarn-package-holder comprising a post formed of a strip of resilient sheet-metal transversely circularly curved and bent approximately at its mid-point to form a blunt-pointed, substantially conical mandrel adapted to receive a yarn-package, and tending by virtue of its resilience to expand against and fit the interior surface of such package, a rockable support for said post and a fixed cam ele- 75 ment for contracting the legs of said post by rocking movement of such support.

3. In a textile machine, a yarn-package-holder comprising a bracket adapted to be fixed on the creel, a rockable support on said bracket, a contractible post on the support adapted to rock from a forward angular yarn-delivering position to a rearward upright position, and cam elements respectively on said bracket and support for contracting said post by movement to said upright position.

4. In a textile machine, a yarn-package-holder comprising a bracket, a rockable support on said bracket, a contractible post on the support, said support being adapted to swing said post from a forward angular yarn-delivering position to a rearwardupright position, cam elements respectively on said bracket and support for contracting said post when moved to said upright position, and a pad shelf fixed on and rocking with said support.

5. In a textile machine, a yarn-package-holder comprising a bracket adapted to be fixed on a creel, a rockable support on said bracket, a contractible post and a pad shelf both mounted on the support, said support being adapted to swing said post and shelf from a yarn-delivering position to an upright yarn-package-recelving position, and cam elements respectively on said bracket and support for contracting said post when moved to said receiving position.

6. In a textile machine, a yarn-package-holder comprising a bracket adapted to be fixed on a creel, an endwise movable rockable support on .leg members being secured to said support and the other bearing against said bracket, and cam elements respectively'on said bracket and support for endwise moving said support to contract said legs.

'I. In a, textile machine, a yarn-package-holder comprising a fixed bracket, a rock shaft therein, and a post formed of divergent legs each em.- bracing said shaft to be rocked thereby and means for securing one of said legs to said shaft formed as a pad shelf, whereby said post and shelf are jointly moved to yarn-delivery position by the rocking of said rock shaft.

8. In a textile machine, a yarn-package-holder comprising a post formed from a flat sheet-metal strip with its end sections transversely curved to con cal conformation, and bent approximately at its mid-point to form a blunt-pointed, expansible, substantially conical post suited to receive and frictionally retain the paper cone of a yarn package, and means for holding the free ends of said strip adapted to permit relative movement there-between in accommodation to said cone.

9. A yarn-package-holder for textile machines comprising a post having angularly related legs each having a conical conformation and a length adapting it to make surface frictional contact with the interior of the paper cone of a yarn aaeaaaa machine, yarn-package-hoiders on such creel, each comprising an expansive post adapted for engaging and expanding within the conical hole of a yarn package and mounted on one of said horizontal rails to swing in a forward and backward direction, means for limiting the forward movement to hold the post at a low delivery angle forward of said rail, and means effective on the backward movement or the post to hold it in an upright package-receiving position rearward of such forward position whereby such creel can be serviced from the rear of the machine.

11. In a textile machine an up-standing sys tem comprising horizontal rail members constituting a creel mounted on the rear of the machine, yarn-package-holders on such creel,

each comprising an expansive post adapted for engaging the center hole of a yarn-package and mounted on one of said horizontal rails to swing in a. forward and backward direction, means for causing the post to expand when swung in the forward direction and contract when swung in the rearward direction, means for limiting the forward movement to hold the post at a lowdelivery angle forward of said rail and means effective On the backward movement of the post to hold it in an upright package-receiving position rearward of such forward position, whereby such creel can be serviced from the rear of the machine.

HANS J. 'I'HEJLER.