US2361428A - Sizing device for winding machines - Google Patents

Description

' Oct. 31,1944. 1 v G. L. BOYCE ETAL\ v 2,361,428

SIZING DEVICE FOR WINDING MACHINE/S Filed June 6, 1942 INVENTOR. EHFF'IELD L. EUYCE BY EHF'L Fl 'EHETELLHN ATTO Patented Oct. 31,1944

umrso STATES PATENT FFlCE SIZING DEVICE FOR MACHINES Garfield L. Boyce, Ridley Park, Pa., and Carl A.

Castellan,

Wilmington,

Del., assignors to American Viscose Corporation, gton, Del a corporation of Delaware Application June 6, 1942, Serial No. 446,154 12 Claims. (Cl. 242-37) This invention relates to winding machines and more particularly to an improved device for arresting the operation of the machine when the which swings away from the spindle as the wound package increases in size. The form of device for stopping the winding machine generally employed with this type of winding machine and shown in the Wardwell patent has the disadvantages of being somewhat slow-acting and of in--- creasing the pressure of the thread guide against the surface of the winding as the package approaches the predetermined size to which the stopping device has been set. The slow-acting characteristic of the. device results in wound packages of non-uniform weight but, what is more important, the increased pressure on the package during actuation of the stopping device deforms the wound package.

Itis an object of the invention to provide a novel form of device for automatically stopping the winding when the package reaches a predetermined size which device avoids the exertion of undue pressure of the guide. against the package. Another object is to-provide such a device which. is simple in character and which may be readily attached to standard machines without altei'lngthe structure thereof. Another object is to provide such a device which is adapted to cooperate with the mechanism for stopping the device automatically upon breakage or exhaustion of the supply of the yarn or strand .being wound. A further object is to provide a device which is adjustable in character so that a package of any desired size may be obtained upon the machine or machines to which the attachment is applied.

A further object is to provide an improvement in the type of stopping device disclosed in the United States patent application of Schrader and Spengler, senNo. 443,294, filed May 16, 1942. In

that application, no provision was made for assuring that the machine would not operate if the operator in starting a fresh cop tube failed to re-set the impact member in its initial rest position in the path of the traverse frame. While bears against the surface of the winding, and

the weight of the impact member in some cases is sufllcient to hold the arm 33 in the way of the projection 38 of the wheel 35 after the memberhas fallen to stop the machine, yet the use of an excessively heavy impact member with line denier yarns tends to produce defects, such as shiners and breaks. It is an object of this invention to modify the "sizing stop device of the above-mentioned application so that the arm 33 is certain to be held in stopping position by the impact member after it has fallen and to 1 provide an arrangement for accomplishing this without requiring an excessively heavy impact member. Other objects and advantageswill appear from the drawing and description thereof. 1

In the drawing, illustrative of the invention,

Figure 1 is a front elevational view of a conventional type of winding machine showing the present invention applied thereto.

Figure 2 is a side elevatlonal view of the wind- 4 ing machine shown in Figure 1. p

While the invention will be described hereinafter in relation to a particular type of semen-- tional winding machine, it is to be understood that it is not limited to application thereto. in the description, the conventional parts of the winding machine will first be described and this will be followed by a description of the parts which constitute the present invention.

Referring to the drawing, reference numeral .2 desi nates the fixed main frame of the machine.

At the top of frame 2, a rotating spindle 3 is joumaled in suitable bearings and is adapted tends in a direction parallel to the winding spin'--' dle 3. This shaft 6 is connected to the spindle and is driven therefrom by suitable means, such as gears, a belt and pulleys, or sprockets and chain (not shown). helical grooved cam i for rotation therewith.

A traverse frame 8 is pivotally mounted upon the shaft 6 upon which it is suitably balanced such as by the counterweight 8. This traverse frame 8 is provided with a. backing plate I! and a porcelain bailll may be' rotatably supported on a wire i2 whose depending legs adjacent the ends of the bail are suitably fastened within recesses in the plate It by means of set screws IS. The traverse frame 8 is constructed to pro vide a horizontal groove through which a traverse bar I may reciprocate. A thread guide The shaft 8 also carries a l5, whose upper end is adapted to press lightly against the package being wound is fastened to it gradually swings the traverse frame 3 away fromthe spindle 3 and .the traverse frame is prevented from swinging back toward the spindle by means of a lever i3 having oneend fastened thereto at I3 and the other end engaging within a groove formed underneath a segment 23 which is pivotally fastened to the main frame 2 at 2i.

The operation of. the winding machine is controlled by a starting lever or handle 22, mounted on one end of, a rotatable rod 23, supported in bearings at the topof the main frame 2. The opposite end of the rod 23 carries means for 'operating a clutch or similar device (not shown) to control the' operation of the spindle 3 and the other parts ofthe machine driven therefrom. A lever 24 is mounted adjacent the starting lever 22 on the-rod 23 so that it rocks therewith. One end of lever 24 is normally blessed in a counterclockwise direction by a spring 25 fastenedto the frame 2 and is provided with a braking means 23 which is adapted to press against the spindle 3 and to stop the rotation thereof when the lever 22 is in the stop position in which position the clutch or other devicefor operating thespindle 3 is disengaged. The other end of the lever 24 is formed as a curved arm having a book 21 at its end. When the starting lever 22 is in operating position, .in which the clutch is engaged with the spindle '3 and the brake is liftedtherefrom (as shown in Figure 1), the hook 21 engages another hook 28 secured to or constituting part of the pivoted segment 23. The. machine may be maintained in running position by setting these hooks 21 and 28 in opposition to the spring 25 which otherwise would tend to set the brake and to swing the starting lever 22 into the stop in the drawing, it is fastened to the frame 8 by.

over the porcelain bail II and through the travride upon the yarn and along which the yarn may traverse to a certain extent. The extension 31 maybe bent at the end to form a hook 33 to prevent the yarn fromaccidentally slip- Ding out of engagement therewith. The first arm 33 is 01' such length and the entire detector is mounted for independent and free pivotal motion with respect to the segment 23. This arm 39 may be pivoted upon the same pivot 32 as the end breakage detector 3| though this is,

not essential. This arm 39 is provided with one projection 43 which is adapted to serve as a resting stop to support the arm in an upright position upon the segment 23 at an angle slightly inclined from the vertical (as shown in Figure 1.

which shows the machine as the package approaches full size). The amount of this angle is preferably as small as is consistent with the vibrationinherent in the operation of the machine or associated with neighboring machines.

- The free end of the arm 39 is provided with a second projection 4| which is adapted to strike the arm 33 of the end breakage detector 3| when the upwardly extending arm 39 is swung out of its resting position. The weight of arm 39 may vary widely, being made heavier when operating'with greater tension in the course of yarn approaching the package. If desired, the-projection 4lmay be threaded to receive interchangeable internallythreaded sleeves of various weights similar to the sleeve 44 described hereinbelow.

This sizing stop arm or impact member 39 is adapted to be operated upon engagement by any part of the traverse frame 8. Preferably, the part which engages the stop arm 39 is readily adjustable. For example, an L-shaped member 42 may have one leg 43 provided with threads adapting it to receive an internally threaded sleeve 44 and a lock nut '43 to lock it in any desired position along the length of the threaded leg 43. This L-shaped member may be fastened toany part of the traverse frame 8. As shown means of one of the set screws employed in holding the wire l2 for the porcelain bail- I I. I Besides the adjustment that is possible by merely screwing the sleeve 44 to a different position, an adjustment may be accomplished in extreme cases by replacing the sleeve itself with a sleeve of longer or shorter length The arm 39 may be provided with a weight 43 adapted to screw on to the upper end of the arm so that it may be replaced by other sizes of weights. The stop initiating arm 33 is pivotally mounted at 41 on the pivotal mounting 48 to which the other arm 34 of the end breakage detector is fixedly secured. Ordinarily, the arm 33 rests against the screw 49 upon the pivotal mounting .43 of the end breakage detector 34 so that it is in the position shown in Figure 1. A J-shaped stop member 33 is secured to the frame 2 in such a manner as-to limit the clockwise motion of the arm 33 so that. this arm can not ride freely over the projections 33 of the wheel 33 once it has been thrown into engagement therewith.

device 3! is so balanced that upon breakage of the yarn, the device swings in a clockwisedirection tobring-arm 33 into thepath of the proiections 33 upon the rotating wheel '33 which in 'turn forces the segment 23 in a counterclockwise direction sumciently to release the two hooks 21 and 23 and thereby permit the spring 23 to throw thestarting lever 22 into the stop position to apply thebrake and disengage the clutch.

"Theparts oithe machine so far described are conventional and constitute no essential part of As will appear from the drawing, the arm 33 is movable into stop initiating position by either the breakage of the yarn (resulting in swinging of arm 34 and hence of. arm 33 by the swinging of the screw 43 on the pivotal mounting 43) or by the impact of the extension 4| against the arm 33 as a result of the displacement of the weighted arm 33 from its rest position by the projection 43 extending from the traverse -i'rame. The stop mechanism is so constructed that should the operator of the machine start it without resetting the arm 33 to its proper rest position as this invention except as will appear hereinafter. shown in Figure 1, the weight of the arm 33 is In accordance with this'inventign. an i 33 suflicienttokeep the arm 33 in encasement with assume the projection a oi the wheel as as determined by the stop ill on. the frame, so that upon release of the lever 22 by the operator the machine automatically stops.

As will be readily apparent, the impact member of the present invention-acts upon the arm 33 without the intermediationof the end breakage detector arm -34 and its action has comparatively little influence upon the tension exerted upon the yarn by the extension 31 of the end breakage detector arm 3|. The weight 46 may be relatively small and yet be adequate to Y maintain the arm 33 inengagement with the projections to of the wheel 35 since it need only counter-balance the arm 83 instead of the whole of the end breakage detector assembly pivotally I ment, means for stopping said machine, a memmounted on the segment in the manner shown in the application of Schrader et a1 previously referred to.

In the present specification, and claims, the term "package" is used, in a general sense to indicate any form of wound mass and the term yarn" is intended to designate any kind of strand material whether textile or otherwise.

While a preferred embodiment of the invention has been disclosed, it is to be understood that such changes and variations may be made as do not depart from the spirit and scope-of the invention as defined by the appended claims.

We claim:

1. In a winding machine, a traverse frame,

means forstopping said: machine automatically,

a pivoted member arranged to be set in aposition of rest approaching a position ofgravita tional instability in the path of-an element secured to saidtraverse frame, said member being .arranged to move automatically and independently to a third position to initiate the operation or said stopping means upon displacement from its rest position. through-its unstable position, means for swinging said traverse frame as the winding proceeds to cause said element to engage said member and to displace it from'its rest position to its unstable position when a predetermined size of winding has been'obtained, and means for holding said impact member in ber having an arm'movable into engagement with said element to initiate the operation of said stopping means, a pivoted impact'member having a weight at one side and an extension on the other side of the pivot movable from a rest position with the weight uppermost through a'position of instability to cause the extension to strike said arm to effect movement thereof into engagement with; said element, said impact member being arranged in its rest position in the path of swinging of said traverse frame so that it is engaged thereby and moved into strik-.

ing position when a predetermined size of winding is obtained, and means for limiting the movement of the arm when struck by the impact member to keep the arm in engagement with the rotatable element until re-set in its initial position of rest.

5. In a winding machine, a winding spindle, a traverse frame, means for pivotally swinging said traverse frame from said spindle as the winding proceeds, means for stopping said machine, a

pivotally suspended member having an arm movable into engagement with said element to initiate the operation of said stopping means, a pivotally mounted impact member having a weight at one side and an extension on the other side of the pivot movable from a rest position with the weight uppermost to a position of instability to cause the extension to strike said arm to effect movement thereof into engagement stopping means initiating position until re-set in its initial position of rest.

1 2. In a winding machine, a winding spindle, a rotatable element, means for rotating said element, means for stopping-said machine, a member having an arm movable irito engagement with said element to initiate the operation 0! 'said stopping means, an impact member movable from a rest position to a; self-propelled striking engagement with said arm to effect movement of said arm intoengagement with said element, means movable; by the growth of the package being wound-on said spindle into engagement" with said impact member to move it from its rest position into its self-propelled striking position, and means for limiting the movement of the arm when struck by the impact member to keep the arm in engagement with the rotatable element until re-set in its initial position of rest.

3. In a winding machine, a winding spindle, a rotatable element, means for rotating said element, means for stopping said machine, a pivotally suspended member having an arm movable into engagement with said element to initiate the operation of said stopping means, a pivotally mounted member having a weight at one side and an extension on the other side of the pivot movable from a rest position with the weight uppermost to a position of instability to with said element, said second member being arranged in its rest position in the path of swinging of said traverse frame so that it is engaged thereby and moved into striking position when a predetermined size of winding is obtained, and

means for limiting the movement oil the arm when struck by the impact member to keep the arm in engagement with the rotatable element .until re-set in its initial position ofrest.

6. In a winding machine, a winding spindle, a rotatable element, means for rotating said element, means for stopping said machine, a member having an arm pivotallymounted thereon movable into engagement with said element to initiate said stopping means and having a second arm in engagement with a running course of yarn, said member being normally withheld from movement to initiate operation of the stop means by said running course, of yarn and being constructed to move 0! its own weight into engagement with said element to initiate operation of the stop means upon breakage or termination of said yarn, an impact member movable irom a rest position into a self-propelled striking engagement with the first arm to eflect movement thereof into engagement with said element, means movable by the growth of the package being wound on'said spindle into engagement:

with said impact member to move it from its rest position into its self-propelled striking position.

'7. In a winding machine, a winding spindle, a traverse frame, means for pivotally swinging said frame from saidspindle as the winding proceeds, a rotatable element, means for rotating said element, 'means for stopping said machine, a pivotally suspended member having an arm pivotally mounted thereon movable into engagement with said element to initiate the operation of said stopping means and having a second arm in engagement with the running course of the yarn, said member being normally withheld from movement to initiate operation of the stop means by said running course of yarn and being constructed to move of its own weight into en agement with said element to initiate operation of the stop means upon breakage or termination w of said yarn, a pivotally mounted impact member movable from a rest position to a self-propelled striking engagement with theflrst arm to eflect movement thereof into engagement with said element, said impact member being arranged in its rest position in .the path of swinging of said traverse frame so that it is engaged thereby and moved into its self-propelled striking position when a predetermined size of winding is obtained, and means for limiting the movement oiv the arm when struck'by the impact member to keep the arm in engagement with the rotatable element until re-set in its initial position of rest.

8. In a winding machine, a traverse frame, means for pivotally swinging said traverse frame as the winding proceeds, means for stopping said machine, means responsive to the breakage of the yarn being woundfor initiating said stop means, and movable impact means for initiating said stopping means having an inactive position during normal winding operation in which a part thereof lies inthe path of said traverse frame, said impact means being arranged to be set off for automatic, independent motion into stopping means initiating position upon contact of said part thereof by the traverse frame when a predetermined size of package has been obtained, and means for holding said impact member in stopping means initiating position until reset in matic independent motion upon displacement through its position of instability to a third positionto initiate operation 0! the stopping means, and means for holding said impact member in stopping means initiating position until re-set in its initial position of rest.

10. In a winding machine, a traverse frame, means for stopping said machine automatically.

I an impact member arrangedto be set in a position of rest in the path of an element of said traverse frame and to be displaced through a position.

of instability to a position of initiating the operation of said stopping means, the member being mounted for automatic and independent motion to stopping means initiating position upon dis-' placement to its position of instability, means for swinging said traverse frame as the windingv proceeds to cause said element to displace said member from its rest position to its unstable position when a predetermined size of winding has been obtained, and means for holding said impact member in stopping means initiating position approaching a position of gravitational instability in the path of an element secured to said traverse frame, said member being arranged tomove automatically and independently to a third position to initiate the operation of said stopping means upon displacement from its rest position to its unstable position, means for swinging said traverse frame as the winding proceeds to cause said element to displace said member from its rest positionthrough its unstable position when a predetermined size of winding has been obtraverse frame and to be displaced to a position of gravitational instability by a predetermined extent oi swing of said traverse frame and thereupon to fall and strike said breakage responsive meansto initiate said stopping means, and means for holding said impact member in stopping means initiating position untilre-set in its initial position of rest.

- GARFIELD L. BOYCE. CARL A. CABTELLAR.

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