US2833490A

US2833490A - Bobbin supporting device for textile spinning and like machines

Info

Publication number: US2833490A
Application number: US536636A
Authority: US
Inventors: Quint Bernard Henry John
Original assignee: Plessey Co Ltd
Current assignee: Plessey Co Ltd
Priority date: 1955-03-25
Filing date: 1955-09-26
Publication date: 1958-05-06
Anticipated expiration: 1975-05-06

Description

May 6, I958 B.'H. J. QUINT BOBBIN SUPPORTING DEVICE FOR TEXTILE SPINNING AND LIKE MACHINES 2 Sheets-Sheet 1 Filed Sept. 26, 1955 BERNARD .NENRY HHIN UNIT.

lNl/EN 7'0 mm-n 6%;

1477'0ENEY May 6', 1958 B H- J. mm 2,833,490

BOBBIN SUPPOIQTING DEVICE FOR TEXTILE SPINNING AND LIKE MACHINES Filed Sept. 26, 1955 v 2 Sheets-Sheet 2 I simian mun JOHN aunn.

BY/ZZM ATTORNEY Unite States Patent i Bernard Henry John Quint, Swindon, England, assignor to The Plessey Company Limited, Ilford, England, a British company Application September 26, 1955, Serial No. 536,636

Claims priority, application Great Britain March 25, 1955 7 Claims. (Cl. 242--130.2)

The present invention relates to bobbin supporting devices for suspending bobbins in, for example, the creels of textile spinning or other like machines of the kind in which the bobbin is suspended from a supporting spindle by detents which engage a shoulder provided within the bobbin bore, the spindle being carried by a ball or other universal joint supported by the creel or the like of the machine, the detents being operable automatically into or out of the bobbin engaging position respectively by the action of positioning or removing a bobbin from the supporting device.

In my United States of America patent application, Serial No. 376,584 there is described a bobbin supporting device having supports moveable into and out of a bobbin position, a rotatable spindle and a collar mounted so as to be slideable in the axial direction-of said spindle and means operable as a result of a two-way movement of said collar to efiect axial movement and intermittent rotation of the spindleto permit movement of the bobbin supports into or out of the bobbin supporting position.

The specific embodiment described in my'parent specification No. 376,584 comprises a tubular sleeve having supporting means at one end, bobbin supports mounted on a common pivot at the opposite end of the sleeve, a spindle rotatably mounted within the bore of the tubular sleeve,

said spindle being provided with two sets of opposed splines and cams, said sleeve having diametrically opposed studs arranged intermediately of the length of the bore slideably engaging with the splines and cams, a collar surmounting said tubular sleeve above the splines slideable axially and being rotatablyconnected to said spindle for imparting axial movement thereto, the studs on said sleeve engaging with alternate sets of cams whereby on the upward and return stroke of said collar effects an intermittent angular movement of the spindle to permit movement of the bobbin supports.

According to the present invention the bobbin device consists of a tubular sleeve having supporting means at one end, bobbin supports mounted in a common pivot at the opposite end of the sleeve, a spindle provided with a set of splines and cams above and below a circumferential groove, said spindle is rotatable and slides axially within the sleeve, each set of splines and earns operatively engage a fixed pin to impart angular movement of the spindle by the actuation of a collar surmounting the sleeve to permit movement of the bobbin supports.

If desired the bobbin supports may be spring loaded to assist the supports to move radially outwards to the bobbin engaging position when they are required to support a bobbin.

In order that the invention may be clearly understood and carried into efiect, an example of the same will now be described by aid of the accompanying drawings in which- Fig. 1 is a longitudinal section of the device showing part of a bobbin in the supporting position,

Figs. 2 and 3 are taken from opposite ends of the device shown in Fig. 1,

2,833,490 Patented May 6 1958 Fig.4 is an elevation view of the device shown in -Fig. 1,

Fig. is a view showing the spindle, Figs- 6 and 7 are views taken from opposite ends of 5 the spindle, and

Fig. 8 shows in section one half portion of the tubular mernber, two such portions being secured together to form the complete fabricated tubular member shown in Fig. 4.

The device shown in the drawing comprises a tubular sleeve 1, divided longitudinally in two halves, is provided i with a pivot pin 2 which extends transversely across the bore of the sleeve 1 and upon which is pivotally mounted a pair of levers 3. A pip or ear 4 is formed on the edge of each lever 3 close to the pivoted end of the levers, which serve as a seating or location for a compression spring 5; The upper end 6 of each lever 3 is formed as a bobbin engaging support and projects upwardly from the pivot pin 2, the lower end of each lever 3 projecting downwardly of said pivot pin 2. The wall of the tubular sleeve 1 is slotted at opposite points, the slots 7 being offset as shown in Fig. 2 so as to be in alignment with the levers 3 and of a length to permit free pivoted movement of the levers 3 in one direction so that their upper bobbin supporting ends 6 project radially outwards from the slots, the lower edges of the levers 3 when in this position being in engagement with the lower end of the bore of the tubular sleeve 1 to limit the-said outward radial movement of the upper ends. 7

Mounted within the bore 8 of the tubular sleeve 1 is a spindle 9 which is axially displaceable, from a lower to an upper position, the spindle 9 being also rotatable during its axial movement.

The spindle 9 has a circumferential groove 10 intermediate of its length and four splines are situated immediately above and below the groove, the splines above 1 the groove 10 are indicated by numeral 11, the splines below the groove consist of two long splines 12 and two short ones 13, said splines on opposite sides of the groove are oil-set at and the ends of each spline being sawtoothed, the helix angle of the tooth of the lower set being opposite to that of the upper set, the saw-toothed portion providing upper and lower opposed

cam surfaces

14, 15 respectively.

45 The bore of the tubular sleeve 1 is provided with pins I, 20 and 24 (Fig. 8) which project radially inwardly be: tween the splines on the upper and lower end of the spindle 9 respectively.

A guide rod 17 houses within the tubular sleeve 1 has the lower end disposed within the bore of the spindle 9. Said spindle 9 is maintained in the lower position by a compression spring 18 mounted over the guide rod 17 in which one end abuts against the shoulder 19 formed on the rod and the opposite end against a shoulder 16 within the bore of the spindle 9. The tubular sleeve 1 is provided with a pin or pins 20 near the upper end, "which is or are adapted to enter the upper set of splines 11 when the spindle 9 is displaced axially as herein set forth.-

The spindle 9 is adapted to be moved axially within the bore of the tubular sleeve 1 by a collar 21 arranged exteriorly thereof so as to be axially slideable on the sleeve 1.

The collar 21 is provided with pins 22 which extend radially inwards through longitudinal slots 23 formed in the wall of the tubular sleeve 1, the inner ends of each pin 22 engaging in the circumferential groove 10 on the spindle.

Upon axial upward movement of the collar 21 the cam surfaces 14 above the circumferential groove'10 79 strike against the pin or pins 20 near the upper end of the tubular sleeve 1, thereby rotating the spindle 45. Upon return axial downward stroke, pin or pins 24 pro vided in the lower end of .the tubular sleeve 1 strike the cams beneath the groove in said spindle 9 rotating same a further 45 and enter the short spline or splines 13, the downward movement .of the spindle 9 is arrested and the levers 3 are free to collapse within the bore of the sleeve 1. To facilitate the withdrawal of the levers 3 the lower end of the spindle'may be slotted, as indicated by numeral 25 (Fig. 6) whereby a bobbin 26 previously inserted on to the device can be withdrawn. To replace a fresh bobbin a similar operation is applied to the. collar 21 when theispindle 9 is rotated intermit' tently over 90", to enable the pinor pins 24 fixed to the tubular sleeve 1 to enter the long spline or splines 12 and the surface of said spindle 9 adjacent the levers 3 serve as abutments to prevent same from collapsing.

The device is adapted to be suspended. by its upper end so as to be freely rotatable on a universalball type joint from the creel of a textile or othermachine.

A simple construction of ball joint is shown in Fig. l of the accompanying drawings and consists of a ball race 26 the inner race 27 of which is contained within a recess 28 formed in the flanged upper end 29 of the tubular sleeve 1. The inner race 27 engages a sphericalsurface 30 formed on the lower end of a spigot 31 the upper end of the spigot 31 being threadedas shown at .32 and adapted to be screwed into a tapped hole in the machine creel. The ball race 26 is secured in position byproviding the outer race .33 with a plurality of circumferentially spaced lugs 34 which are pressed over on assembly to embrace the peripheral edge of the flanged,

upper end of the tubular sleevel.

Preferably the device is provided at its upper end with a dust cover 35 which is secured to the spigot '31 by a nut 36 the dust cover '35 being clamped by the nut 36 against a flange 37 formed integral with the spigot 31.

The tubular sleeve 1 is for preference constructed in two halves. In this construction each .half portion;- see Fig. 8', is formed as a die-casting or plastic moulding, the two half portions when assembled together being secured at thelower end by the pivot pin 2 and at the upper end by the turned over lugs 34 of the upper race 33.

I claim:

1. A bobbin supporting device for suspending bobbins in, for example, the creels of textile spinning machines comprising a tubular sleeve having supporting means at one end for'attachment to the machine,'bobbin supporting detents carried by and adjacent the opposite endof the tubular member, a spindle mounted within the bore of the tubular member, a collar surmounting said tubular member slidable axially along said tubular sleeve and being rotatably connected to said spindle, means above and below the rotatable connection between said sleeve and collar for imparting intermittent angular motion to the spindle as a. result of axial two-way movement of the spindle to permit movement of the supports into or out of the bobbin supporting position.

2. A bobbin supporting 'device comprising a tubular sleeve having supporting means at one end, bobbin supporting detents mounted on a common pivot atthe opposite 3 end of the tubular sleeve, a spindle rotatably mounted within the bore of the tubular sleeve, a collar surmounting said tubular sleeve slidable axially and being rotatably connected to said spindle, said spindle being provided with a set of splines and earns above and below the rotatable connection engaging with pins arranged intermediately the length of the bore of said sleeve for imparting intermittent angular movement of the spindle upon an upward and return stroke of the collar to permit movement of said detents.

3. A bobbin supporting device comprising a tubular sleeve having supporting means at one end, a pair of supporting detents, mounted on a common pivot at the opposite end ofthe tubular sleeve, a spindle rotatably mounted within the bore of the tubular sleeve, a collar surmounting said tubular sleeve slidable axially and being rotatably connected to said spindle, said spindle being provided with a set of splines and cams above and below the rotatable connection engaging with pins arranged intermediately the length of the bore of said sleeve, the upper set of splines and cams being out of alignment with the lower set of splines and earns, for imparting intermittent angular movement of the spindle upon an upward and return stroke of the collar to permit movement of said detents.

4. A bobbin supporting device comprising a tubular sleeve having supporting means at one end, a pair of supporting detents, mounted on a common pivot at the opposite end of the tubular sleeve, a spindle rotatably mounted within the bore of the tubular sleeve, said spindle having a slot at one end for receiving the common pivot for said levers, a collar surmounting said tubular sleeve slidable' axially and being rotatably connected to said spindle, said spindle being provided with a set of splines and-cams above and below the rotatable connection engaging with pins arranged intermediately the length of the bore of said sleeve, the upper set of splines and earns being oil-set at 45 in relation to the lower set of splines and cams, the upper set of splines and earns being out of alignment with the lower set of splines and earns, for imparting intermittent angular movement of the spindle upon an upward and return stroke of the collar to permit movement of said detents.

5. A bobbin supporting device according to claim 3 including a pair of spring loaded levers, mounted on a common pivot Within the bore of the sleeve.

6. A bobbin support according to claim 3 including a pair of spring loaded levers mounted on a common pivot within the bore of the sleeve and a slot in the lower end ofthe spindle to receive the spring loading upon withdrawal of said levers. v

7. A bobbin support according to claim 3 having a guide'rod housed in the sleeve and a compression spring mounted on the guide rod maintaining the spindle in the lower position.

References Cited in the file of this patent UNITED STATES PATENTS