US2121352A - Machine for winding yarns or threads or the like on to paper tubes or cones or other bodies - Google Patents

Description

June 21, 1938. H. .HOLT ET AL 2,121,352 MACHINE FOR WINDING YARNS OR THREADS OR THE LIKE ON TO PAPER TUBES 0R CONES QR OTHER BODIES Filed July 24, 1937 3 Sheets-Sheet 1 June 21, E938. EH. HOLT ET AL 2,121,352

MACHINE FOR WINDING YARNS OR THREADS OR THE LIKE ON TO PAPER TUBES OR CONES OR OTHER BODIES Filed July 24, 19s? a Sheets-Sheet 2 3 Sheets-Sheet 3 H. HOLT ET AL TUBES OR CONES OR OTHER BODIES Filed July 24, 1957 June 21, 1938.

MACHINE FOR WINDING YARNS OR THREADS OR THE LIKE ON TO PAPER Patented June 21, 1938 PATENT OFFICZE MACHINE FOR WINDING YARNS THREADS OR THE LIKE ON TO PAPER TUBES R CONES OR OTHER BODIES Herbert Holt and Edgar Brierley, Rochdale, England Application July 24, 1937, Serial No. 155,536 In Great Britain October 3, 1936 '1 Claims. (01. 242-18) This invention relates to improvements in machines for winding thread or other analogous material on to paper tubes or cones or other bodies, hereinafter for convenience termed thread-winding machines.

The principal object of the present invention is to provide means for varying the speed of revolution of the winding unit, as the build-up of the package proceeds, without the guide frame up of the traversing guide exerting added pressure on the package being wound as the package moves the guide frame away from the axis of the spindle.

Another object 'is to provide quick release 5 means for enabling the mechanism to be easily and quickly re-set after completion of winding of a package.

The present invention comprises at least one Winding head for winding thread or other analo- 2Q gous material onto paper tubes, cones or other bodies around a spindle, or a holder secured to a spindle, in which the spindle is geared to a traversing guide movable away from the centerline of the spindle, and a guide frame is moved by a body of thread or other material wound increasing in radius, and in its movement controls the operation of mechanism for varying the speed of the winding unit so as to maintain substantially constant linear speed of the thread. 30, In a winding head of known construction, as described in British patent specification No. 448,079, an axially movable driving friction roller is moved across the face of a friction disc connected to the spindle by the'thread building up on the spindle exerting pressure against the guide frame to move it away from the centerline of the spindle and causing said guide frame, by means of a linkage between it and a cranked part of an oscillatable shaft, to impart oscillatory movement to said shaft, which in turn through a further linkage engaging the driving friction roller causes the said roller to be moved axially across the face of the friction disc whereby to vary the speed of revolution of the spindle.

In the adaptation of this invention to a machine of the type above referred to, the guide frame is not connected to the oscillatable shaft, and the package being wound is only subjected to the relatively light pressure caused by the weight of the guide frame being moved, and a better wound package is obtained than has heretofore been possible.

The invention provides, in a thread-winding machine of the type referred to, mechanism for effecting and/or controlling axial movement of step-wise movement of said clutch element, said means being operated in one direction by impact of a striker participating in the reciprocating movement of the traversing guide, the arrangement being such as to effect creeping movement of said screw-threaded shaft, and thus of said 15..

slidable bracket, whereby to impart turning movement to said oscillatable shaft.

Description will now be given of an illustrative embodiment of the invention applied to the winding head of a thread-winding machine of the 20; type referred to, reference being made to the accompanying drawings in which only so much of a winding head is shown as is necessary for clear understanding of the invention. The same reference characters are used to indicate corre- 5 sponding parts in the several figures.

In the drawings, Fig. 1 is a front view of a winding head with the mechanism forming the subject of this invention applied thereto; Fig. 2

is a side view of the winding head shown in 3Q Fig. 1, but with parts omitted for clearness; other parts necessary in the working of the winding head are also omitted for clearness as forming no part of the present invention; Fig. 3 is a side elevation, drawn to a larger scale, of part of the winding head shown in Fig. 1, and showing more clearly the construction of the mechanism according to this invention; Figs. 4 and 5 are end views taken in the direction of the arrows A and B, respectively, of the mechanism shown in Fig. 3, and Figs. 6 and 7 are fragmentary views, also drawn to a larger scale, showing a detail part of the mechanism hereinafter referred to.

In order that the present invention may be clearly understood, brief description will now be 5;

given of the working of the winding head shown in Figs. 1 and 2.

In Figs. 1 and 2, I0 is a driving shaft extending lengthwise of the winding machine and mounted in bearing brackets I I carried by a rail I2 mount- 5 t motion from the friction roller l3 and mounted 5 to be axially movable a short distance along, but fixed to rotate, a spindle l5 revoluble in bearings in a pedestal I5 adjustable and adapted to be secured upon a casing l'l secured to the machine frame. The spindle I5 is shown as carrying and revolving a paper cone l8 applied upon a revolvable holder I9 secured to the spindle I5. 20 is a grooved cam mounted fast upon a shaft 2| revoluble in bearings in the casing H. The spindle l 5 transmits motion to the shaft 2| by means of a train of gearing 22. 23 is a guide frame oscillatable about the shaft 2| and provided with guides between which is slidable an arm 24 carrying the thread guide 25 and with a rod 26 serving as a guide for a longitudinally slidable sleeve 21 carrying the arm 24 and furnished with a pivot carrying a roller 28 engaged in the cam 29 by which the sleeve 21 and thread guide 25 are reciprocated. 29 is a shaft oscillatable in bearings, one in the casing ll and another in an extension of the bracket 39 is an arm adjustably fixed in position upon the shaft 29 and having a forked end adapted to engage studs 3| projecting from a casing 32 slidable upon the driving shaft l but held against turning relatively thereto. Said casing 32 houses the outer ball race of a ball bearing, the inner race of which is secured upon the boss of the friction roller I3. 33 is a spring, in tension, connected at one end to the guide frame 23 and anchored at the other end. Said spring hinders movement of the guide frame 23 away from the center-line of the spindle I5.

The construction and arrangement of the parts so far described are as already known.

According to the present invention, to transmit movement of the guide frame 23 to the shaft 29 there is provided mechanism operated by intermittent impact by a striker reciprocating with the traversing guide. Said mechanism comprises a bracket 34 mounted on the casing 17, and adjacent to the inner end of the guide frame 23, in which are secured two parallel guide rails 35, 36, which project for a suitable distance in an inclined plane over, and transversely, of the centerline of the shaft 29. The guide rail 35 is on a lower level than the guide rail 36 so that the guide-way formed by said rails, as well as projecting outwardly, is inclined towards the rear as viewed from the front of the winding head. A further bracket 31 is slidably mounted on the rails 35, 36 along which it is adapted to be slid, a stop 38 being provided on said rails to limit its movement outwardly. Below the guide rails 35, 36 and centrally disposed relatively thereto is a screwthreaded shaft 39 mounted in bearings provided one in the bracket 34 and the other in the bracket 31. Mounted on said shaft 39 and between the bearings is a grooved pulley 40 forming a oneway rotatable clutch element. Said pulley is clamped between two screw-threaded bushes 4|, 42 forming lock-nuts screwed on to the shaft 39 so that turning movement imparted to said pulley will be imparted to said shaft. Fitting slidably around a reduced part on each of the bushes 4|, 42 is a forked bracket, the two arms 43, 44 of which project towards the front of the bracket. Secured in the arms 43, 44 adjacent to their extremities is a pin 45 providing a pivot for a pawl or dog 46 with a wedge-shaped end projecting between, and closely fitting against, the flanges of the grooved pulley 40. Said pawl 46 is influenced by a spring 41, secured at one end to the pawl and at the other end to the slidable bracket 31, said spring also serving to hold the slidable bracket 31 and pulley 40 in a position where a finger 48 on the arm 44 bears against the slidable bracket 31 to limit turning movement of said forked bracket and pulley 40 in one direction and to return said forked bracket to initial position after turning movement has been imparted thereto in the opposite direction. A further arm 49 projects downwardly for a short distance and is formed with an extension 50 at right-angles to the plane of said arm, said extension being formed at its outer end with a cam surface The arm 49 in conjunction with the arms 43, 44 of the forked bracket forms in effect a bell-crank lever.

Pivotally mounted on a stud 52 on the side of the bracket 34 is a lever 53 having a screwthreaded part 54 adapted to engage the screwthreaded shaft 39 and to be held in engagement therewith by a spring 55 secured at one end to the lever 53 and at the other end to a peg 56 on the bracket 34. Pressure on the end of the lever 53 against the resistance of the spring 55 will cause the screw-threaded part 54 to release the screwthreaded shaft 39. The normal position of the screw-threaded shaft 39 in relation to the bracket 34 is with the bush 4| against one side of the bracket 34, in which position the screw-threaded part 54 of the lever 53 engages with the screwthreaded shaft 39, which projects for a convenient distance through the bracket 34. Projecting from the underside of the slidable bracket 31 is an arm 51 provided adjacent to its extremity with a peg 58.

Mounted adjustably on the shaft 29 and, when adjusted, secured in position thereon is a lever 59 with a forked end 60; between the jaws of said forked end the peg 58 is adapted to project.

On a lug 6| formed on the slidable sleeve 2'! is provided a peg or striker, 62, said peg projecting in a plane parallel with the guide rod 26 on which the traversing guide slides.

The arm 49 of the forked bracket is normally in the range of movement of the peg 62 so that, as the traversing guide is reciprocated, at one end of the movement of said guide the peg 62 strikes against the arm 49 and causes the forked bracket to pivot about the bushes 4|, 42 and, by the contact of the pawl 46 in the groove of the pulley 40, the said pulley is given a slight turning movement which is imparted to the screw-threaded shaft 39. A stop 63 on the forked bracket is adapted to come against the bracket 31 to limit movement of the forked bracket in one direction. The spring 47 returns the forked bracket and the pawl 46 to initial position after each impact of the peg 62.

The continued reciprocation of the traversing guide and the impacts of the peg 62 against the arm 49, with the consequent rocking of the forked bracket, impart, through the medium of the pawl 46, a creeping movement to the pulley 49, which is transmitted to the screw-threaded shaft 39 engaged by the screw-threaded part 54 of the lever 53.

The lever 53 being relatively fixed, the screwthreaded shaft 39 in being turned gradually moves endwise, carrying with it the forked bracket and the pulley 46, and the slidable bracket 31 is also slid along the guide rails 35, 36. This movement causes the peg 58 on the arm 51 to bear against the side of the jaw formed by the forked end 69 of the lever 59 on the shaft 29 and to turn the shaft. The shaft 29 in turning moves, through the arm 30, the axially movable friction roller l3 across the face of the friction disc I 4 and so varies the speed of revolution of the spindle I5.

To ensure that the movement of the friction roller It shall be maintained in correct relationship With the build-up of the package being wound, the said movement is periodically interrupted by the arm 49 being moved out of the range of movement of the peg 62. This interruption is brought about by the cam surface on the arm it coming into contact with a cam surface 64 on the end of the guide frame 23 as shown in Fig. 7, as the forked bracket and the pulley 4B are moved outwards along the screw-threaded shaft 39 ata slightly faster rate than the movement outwards of the guide frame 23, forcing the arm 59 backwards out of the range of movement of the peg 62.

again overtakes the movement of the guide frame 23 and is again interrupted, and so on, as winding proceeds.

On the completion of winding, when it is desired to re-set the mechanism for winding to begin again, pressure on the lever 53 against the resistance of the spring 55 causes the screwthreaded part 54 of said lever to release the screw-threaded shaft 39, and the movable parts of the mechanism are then free to be. slid back manually to their initial position by means of a handle 65.

Modifications may be made in the mechanism without departing from the spirit of the invention.

We .claim:

1. In a thread-winding machine for winding thread or analogous material on to a paper tube, cone or other body on a spindle, the combination with the spindle of a traversing guide movable,

towards and away from the axis of said spindle, a striker participating in the traversing movement of said guide, a friction disc connected to said spindle, a rotatable and axially movable driving friction roller engageable with said disc, an oscillatable shaft for communicating axial movements to said roller, 2. fixed bracket, a bracket slidable relatively to said fixed bracket and operatively connected to said oscillatable shaft, a screwthreaded shaft having hearings in said brackets, a one-way rotatable clutch element on said screw-threaded shaft, means operable in one direction by impact of said striker and cooperative with said clutch element for effecting step-wise rotary movement of said clutch element, and thereby bringing about creeping movements of said screw-threaded shaft and of said slidable bracket, and means operable by said slidable bracket for imparting turning movement to said oscillatable shaft.

2. In a thread-winding machine for winding thread or analogous material on to a paper tube, cone or other body on a spindle, the combination with the spindle of a traversing guide movable towards and away from the axis of said spindle, a striker participating in the traversing movement of said guide, a friction disc connected to said spindle, a rotatable and axially movable driving friction roller engageable with said disc, an oscillatable shaft for communicating axial movements to said roller, a fixed bracket, a bracket slidable relatively to said fixed bracket and operatively connected to said oscillatable shaft, a screw-threaded shaft having bearings in said brackets, a one-way rotatable clutch element on said screw-threaded shaft, means operable in one direction by impact of said striker and co-operative with said clutch element for effecting step-wise rotary movement of said clutch element, and thereby effecting creeping movements of said screw-threaded shaft and of said slidable bracket, means for periodically interrupting the operation of said impact-operated means, and means operable by said slidable bracket for imparting turning movement to said oscillatable shaft.

3. In a thread-Winding machine, the combination claimed in claim 1 in which the clutch element comprises a pulley having a peripheral groove engageable by a spring-urged wedgeshaped dog.

4. In a thread-winding machine, the combination claimed in claim 1 with nut-forming means normally engaged with the screw-threaded shaft and instantly releasable from said screw-threaded shaft.

5. In a thread-winding machine, the combination claimed in claim 1 in which the fixed bracket carries two parallel guide rails on which the slidable bracket is mounted.

6. In a thread-winding machine, the combination claimed in claim 1, in which the clutch element comprises a groove pulley engageable by a spring-urged dog carried by a structure rockable about the axis of the screw-threaded shaft, said structure presenting a part operable by impact of said striker.

'7. In a machine for winding thread or analogous material on to a paper tube, cone or other body on a spindle, the combination with the spindle of a traversing guide movable towards or away from the axis of said spindle, a striker participating in the traversing movement of said guide, a friction disc connected to said spindle, a rotatable and axially movable driving friction roller engageable with said disc, an oscillatable shaft for communicating axial movements to said roller, a fixed bracket, a bracket slidable relatively to said fixed bracket and operatively connected to said oscillatable shaft, a screw-threaded shaft having bearings in said brackets, a one-way rotatable clutch element on said screw-threaded shaft, means operable in one direction by impact of said striker and co-operative with said clutch element for eifecting step-wise rotary movement of said clutch element, and thereby bringing about creeping movements of said screw-threaded shaft and of said slidable bracket, said impactoperated means including a cam follower, a cam co-operative with said follower for moving said impact-operated means out of the range of said striker, and means operable by said slidable bracket for imparting turning movement to said oscillatable shaft.

HERBERT HOLT.

EDGAR BRIERLEY.

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