US1337658A - Twisting and winding machine - Google Patents

Description

A. I. KENT. v TWISTING AND WINDING MACHINE.

APPLICATION FILED AUG. I4, I9I8.

Patented Apr. 20, 1920.

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TWISTING AND WINDING MACHINE.

APPLICATION FILED AUG.I4, I9I8.

Patented Apr. 20, 1920.

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ALDEN J'. KENT, OF RQ'WLEY, MASSJ-l. EFIUSETTS, ASSIGNQR O33 ONE-HALF T0 SAMUEL F.

TVVISTING AFT? menses.

Application filed August 2 0 all whom it may concern Be it known that I, ALDEN J. KENT, a citizen of the Unitedfrltates, and a resident of liowley, in the county of Essex and State of Massachusetts, have invented an 1mprovement in Twisting and lVinding Machines, of which the following is a specification.

In the art of spinning, twisting and winding, it is usually necessary to rewind the spools, creels or bobbins, after they have been wound in the ordinary ring frame, in case it is desired to have the convolutions wound in some other form than the ordinary form, as the ordinary ring frame does not permit substantial variation from the ordinary form of winding.

lVith the ordinary ring frame the excess of the revolutions of the spindle beyond what is necessary to wind on the thread, determines the amount of twist, so that a certain amount of the twisting action of the spindle may, in a sense, he considered ineffective.

The object of my invention is to provide a twisting and winding machine in which the form of convolutions on the spool, or other device on'which the thread is wound, may be varied as desired, so that any desired form of winding may be secured at the time the twisting operation is performed, by the use of diiferent forms of cams. A further object is to provide a form of winding device in which the entire rotation of the whirl, or part of the winding mechanism which is directly driven, will be effective intwisting the thread. Another object is to provide a device of this character in which porcelain eyes may be employed for thread guides, so that renewal of the thread guiding means will be unnecessary for long periods.

I accomplish these objects by the means shown in the accompanying drawings, in

which:

Figure 1 is a side elevation, illustrating an embodiment of my invention:

Fig. 2 is a plan view thereof:

Fig. 3 is a vertical central sectional view of a single spindle, on an enlarged scale:

Fig. l isa cross section, at line H, of Fig. 3:

Fig. 5 is a perspective view of the thread guiding arm, on an enlarged scale.

As the invention relates to a twisting and Specification of Letters Patent.

.JEZSACI-IUSETTS.

'WIITD ENG lLlEAGX-IINE.

Patented Apr. 20, 1920.

Serial No. 249,904.

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winding device, which is designed to be used in connection with any suitable driving and thread delivering mechanism, the particular driving and thread delivering mec iism shown forms no part of the invent on and is merely illustrative, and, while this mechanism is shown in connection with a single spindle only, it will be understood that the same mechanism will be employed to drive a large number of spindles, in practice, and will be duplicated in so far as may be necessary.

As indicated in the drawings, the threads are delivered to a pair of feed rolls 1 and 2, which, turn, deliver the thread to the twisting and winding mechanism, herein described, according to the speed at which they are rotated, said rolls being indicated as driven from a main shaft 3, through a chain i, and gears 567, the gear 7 being mounted on the shaft of the lower roll 2.

According to my inv ntion bearing disk 8 is lined on the machine frame 9, and a vertical hollow shaft 10 is fixed therein, centrally of said disk. A thread guide carrier 12 is rotatably mounted on said shaft 10 and is provided with a hub or whirl ll, which is adapted to receive a driving belt 15 and is directly supported by bearing balls interposed therebetween, and the bearing disk 8. A collar 16 is secured on the shaft 10 above said carrier 12, and bearing balls are and said carrier, thereby holding the latter from upward movement.

The carrier 12 is provided with a pair of vertically disposed arms 18 at diametrically opposite points, the upper ends of which are connected by cross bar 20, in the center of which a tubular bearing 22 is mounted and journaled in bracket arm 24-, secured on the machine frame.

As will hereinafter appear, this construction is not essential to the invention, and is merely employed to provide an additional bearing and prevent vibration at high speeds. The stationary thread guide, formed by bearing 22 in the line of the axis, is, of course, essential to the twisting operation.

A tubular steel spindle 26 is rotatably mounted on the shaft 10, and rests, at its lower end, on collar 16, said spindle being adapted to receive a bobbin or spool 28, which is adapted to fit tightly thereon, so that relative rotation will not be permitted also interposed between said coltherebetween. A collar is secured on the upper end of the shaft 10 and a spring 32 is interposed between said collar and the upper end of the spindle 26, so that a light frictional engagement is caused between the lower end of said spindle and collar 16, in

addition to the force of engagement due to gravity. A rod 34 is slidably mounted within the tubular shaft 10 and is supported at its lower end on a yoke 85, which is adapted to receive one end of a lever 86, the latter being mounted on a pivot 37 on the frame, and being arranged to be swung vertically and positively, in each direction, by a heart-shaped cam 88, on a shaft 39, which is driven by a bevel gear 40, thereon, the latter being driven from the lower roll shaft, through a bevel gear 11, thereon, and similargears 42 and a l, on the shaft as.

A cap 48 is rotatably mounted on the upper end of the rod 34 and has a swivel connection therewith, a latch 50 being mounted on said cap, which is arranged to engage in an annular groove in the rod to lock the samethereto. A thread guide arm holder 52, which consists of a rod bent at right angles, is fixed at one end in said cap as, and extends horizontally therefrom and then vertically downward through a guide bracket 54, mounted on one of the upright arms 18, in which it is adapted to slide freely.

A thread-guide arm 56, which is preferably formed of li ht, flat, spring steel. is secured in the lower end of the holder rod 52, the latter being slotted to receive said spring or arm, and being clamped in position by a screw, or other suitable means. Said arm is arranged to extend horizontally to a point opposite the middle of the spindle 26, and a porcelain thread eye 57 is sup-.

ported in the end portion thereof in position to deliver thread to the spool on the spindle. This endportion is preferably "3"- shaped as shown in Fig. 5.

A thread-guide 58, preferably a suitably supported porcelain thread eye, is mounted on the arm 18 bearing the bracket 54 directlytherebeneath at a point approximately opposite the middle of the spool 28, the exact vertical location thereof not being essential.

The thread, as it is passed from between the rolls 1 and 2, is passed through the tubular bearing 22, guide eye 58, and the thread eye 57 in the end of arm 56, and then connected to the spool 28 so that it will be wound thereon. The belt 15 is passed about a pulley 60, on the main shaft, so that the carrier 12 is caused to rotate in the direction of the arrow of Figs. 2 and a. All the parts which are power driven are interengaged, so that they are rotated at the same relative speeds.

A brake device 62 may be provided for the carrier 12, but is no part of the present invention.

l Vith the above described construction, when the carrier 12 is rotated, the braclret 5e thereon will engage the rod or holder 52 and cause the same to be swung about the axis of the carrier as a center, the cap &8, which supports the rod 52, being rotated on the end of the rod 3 This movement causes the arm 56 to be carried about the spool, or other device, on which the thread is wound. The thread-guide 58 will also be carried at the same speed as the arm 56, so that it will deliver the thread to the eye 57, which will in turn deliver the thread to the spool at a short distance from its surface. lt will be apparent, therefore, that if the spool is held stationary, the thread will be laid thereon, as the carrier rotates.

The speed, at which the thread arm 56, or its eye 57, is carried about the surface of the spool 28, is however, considerably greater than the speed at which the thread is delivered thereto, and, as the thread can only be wound onto the spool at the speed at which it is given off by the feed rolls, it follows that the spool must rotate forward with the tiread-eye, to the extent of the difference between the speed of the threadeye and the speed of delivery of the thrad.

in other words, the pull on the thread will cause the spool to rotate forwardly by a speed which is less than the speed of the carrier, by the rate at which the thread is delivered thereto. To insure the winding of the thread on the spool at the desired ten sion, a certain frictional resistance is provided between the spindle 28, which carries it, and a stationary part of the machine. is the weight of these parts on the collar 16 is insufficient for this purpose, this resistance increased to the necessary extent by the ac tion of the spring 82 in forcing the spindle thereagainst, and may be varied as conditions demand. T hat is, the tension at which the thread is wound on the spool may be varied by adjusting the tension of the spring As the thread is laid on the spool, the action of the cam 38 causes a swinging motion of the lever 36, and a consequent up and down sliding motion of the rod 8%, and thereby a corresponding raising and lowering of the thread arm 56, thereby causing the thread to be laid uniformly on the spool.

While an ordinary heart-shaped cam is shown which will cause the thread or filling to be wound on the bobbin or spool in the usual manner, it will be apparent that by varying the shape of the cam and the elative speed at which it is drivenjthe fo: iof winding may be correspondingly changed.

In practice the tension of the spring arm 56 which acts to swing it inward is insufficient to overcome the centrifugal action thereon, so that, when in motion, the threadguiding end thereof, tends to swing away from the spool, but, as the thread is drawn from the guide-eye 58, it is drawn against the outer side of the eye 57 and holds the inner side of the latter in close' proximity to the surface of the spool under all conditions.

As the carrier 12' is rotated, the threadguide 58 is carried thereby, about the axis, causing the thread to be twisted, and, as the movement is positive, the same number of twists will be placed in the thread, for a certain period of time, as the number of times the carrier is rotated in that period. The diameter of the surface on which the thread is wound, therefore, in no way affects the twists which are placed in the thread, and is the same for all diameters, the only factors which affect it being the speed at which the feed rolls deliver the thread and the speed at which carrier 12 is rotated.

When the spool has been filled, the cap 48 is disconnected from the rod 34 by pressing in the catch 50 and is removed, and then the spool is slipped ed the spindle 26 and an empty spool is placed thereon, after which the cap 48 is restored to position and the guides are re-threaded.

While a single spindle only is shown, it will be understood that a large number may be simultaneously operated in a single frame, the thread-guide arm operating rods 3a thereof being operated from the same controlling means.

I claim 1. In a twisting and winding machine, a hollow spindle mounted to rotate freely, frictional means for retarding the rotation of said spindle, a rod extending through said spindle, a threadguide rotatably con nected to said rod and extending into position to deliver the thread to said spindle, a thread-guide carrier, mean for constantly rotating the same about the axis of said spindle, engaging means between said car rier and thread-guide to cause rotation of the latter with the carrier and simultaneously operating means to move said rod reciprocally.

2. In a twisting and WlllCllIlg' machine, a rotating thread-guide carrier, a hollow spindle mounted to rotate about an axis coincident with that of said carrier, means to retard the rotation of said spindle relative to the carrier, a rod extending axially through said carrier and spindle, a thread-guide supporting arm otatably connected to said rod and slidably engaged with said carrier, means to deliver thread through the guides of said carrier and of said arm to the spindle and means to reciprocate said rod in time with said thread delivering means.

3. In a twisting and winding machine, a stationary, hollow shaft, a hollow spindle, and a thread-guide carrier, each mounted to rotate about said shaft independently, means to drive said carrier at a constant speed, a rod extending axially through said shaft, a thread-guide rotatably connected with said rod to swing about the axis of said carrier, and arranged to be engaged by said carrier to rotate the same with relation to said spindle and means to reciprocate said rod to cause said thread-guide to travel longitudinally of the spindle.

1-. In a twisting and winding machine, a thread-guide carrier mounted to rotate about a vertical axis, a hollow spindle mounted to rotate about the same axis, a rod extending axially through said carrier and spindle, a thread-guide holder having a swivel connection with said rod and a slidable connection with said carrier, -a thread-guide arm extending from said holder adjacent said spindle, and means to reciprocate said rod to carry said guide arm back and forth with relation to the spindle as it is swung about the spindle by the carmen 5. In a twisting and winding machine, a threadguide carrier and a hollow spindle, each mounted to rotate independently about the same vertical axis, a rod extending axially through said carrier and spindle, a holder having a removable swivel con nection with said rod at its upper end and arranged to be sustained thereby, a threadguide arm on said holder, means on said carrier slidably to engage said holder, to swing said guide arm about the spindle with the carrier, and means simultaneously to move said rod reciprocally to move said arm up and down in relation to the spindle.

6. In a twisting and windin machine, a freely rotatable spindle, means for frictionally retarding its rotation, a threadguide carrier having means to rotate the same continuously about the axis of said spindle, a rod extending through said spin dle, a holder having a swivel connection with said rod and extending therefrom transversely, and in a direction parallel to said axis in position slidably to engage said carrier, a thread-guide arm carried by said holder and extending adjacent said spindle, said arm being adapted to yield outwardly therefrom, and means to reciprocate said rod.

In testimony whereof, I have signed my name to this specification.

ALDEN J. KENT.

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