US2361431A - Sizing device for winding machines - Google Patents

Description

w. i c. HANSE SIZING IJEVIGE FOR WINDING MACHINES Original Filed Sept." 11, 1942 INVENTOR. W/zL/AW CZ- fi/Axvss.

ATTORNE Patented Oct. 31, 1944 I SIZING DEVICE FOR MACHINES William C. Hanse, Philadelphia, Pa'., assignor to American Viscose Corporation, Wilmington, DeL, a corporation of Delaware Substituted for abandoned application Serial No. 457,920, September 11, 1942. This application May 2, 1944,.Serial No. 533,747

4 Claims. (Cl. 24239) l" 'This, application is a substitute for abandoned application, Serial No. 457,920, filed September This invention relatesto winding machines.

and more particularly to an improved device for arresting the operation of the machine when the package being wound reaches a predetermined ,iQfIhe present invention is particularly directed to winding machines of the type generally dis-;

closed, in United States Patent No. 801,941, to

'Wardwell, whereinjtheyarn is wound upon a supporting element, such as a core, mounted upon a rotating spindle, the yarn being traversed longitudinally of ,the core by a thread guide that -bears against the surface .of the winding, and

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 thistype of winding machine and "shown in the Wardwell patent has the disadvan-' tages of beingsomewhat slow-acting and of increasing the pressureof the thread guide against thesurface 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 and what is more important, the increased pressure on the package during actuation of the stopping device,

- deforms the wound package.

It is 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 pack-" r stopping device in a manner which will not cause A further object is to connect the novel it to interfere with the maintenance of operating conditions, in accordance with which the pressure of the traverse guide against the pack:

. .age gradually decreases as the package grows in size. 1 Another object is to provide such a device which is simple in character, and which maybe readily applied to standard machines without al- .tering-the structure thereof in any substantial way. Another object is to provide such a device obtained upon the machine or machines to which the attachment is applied. Other objects and advantages will appear from the drawing and description thereof.

In the drawing illustrative of the invention Figure 1 is a front elevational view of a conventional type of winding machine showing one embodiment of the present invention applied thereto;

Figure 2 is a side elevational vie'w'of the winding machine shown in Figure 1; and s Figure 3 is a perspective view of a modification 'of the invention with parts broken away.

While the invention will be described hereinafter in relation to a particular type of conventional 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 Figures 1 and 2 of the drawing, reference numeral, 2 designates the fixed main frameof the machine. At the top of frameZ, a rotating spindle} is journaled in suitable bearings and is adapted to be driven by means of a beltpulley or other suitable mechanism (not shown). The spindle is adapted toreceive a cone or coptube lupon which the package 5 is to'be wound.

A shaft 6 is journaled in the frame 2' and extends in a direction parallel to the winding spindle 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). The shaft 6 also carries a helical groovedcam I for'rotation therewitht' A traverse frame 8 is pivotally mounted upon the shaft 6 upon which it is suitably balanced such as by the counterweight 9. This traverse frame 8 is provided with a backing plate It) and a porcelain bail ll maybe rotatably supported on a wire l2 whose depending legs adjacent the ends of the bail are suitably fastened within recesses in the plate ID by means of set screws IS. The traverse frame 8 is constructed to provida horizontal'groove through which a traverse bar l4 may reciprocate. A thread guide 15, whose upper end is adapted to press lightly against the v package being wound is fastened to one end of cam 1'.

the traverse bar I4 forreciprocation therewith. Theother end of the traverse bar I4 is provided with a head It having a depending pin or roller I! adapted to engage the groove in the helical As the package builds up, it gradually swings the traverse frame 8 away from the spindle 3 and the traverse frame is prevented-from,

swinging back toward the spindle by means of a lever l8 having one and fastened thereto at 19 and the other end engaging within a groove formed underneath a segment 20 which is pivotally fastened to the main frame 2 at 2!.

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 top of 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 of the 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 biassed in a counterclock direction by a spring 25 fastened to the frame 2 and is provided with a braking means 26 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 device for. operating the spindle 3 is disengaged. The other endof the lever 24 is and 28 and thereby permit the spring 25 to throw a the starting lever 22 into the stop position to apply the brake and disengage the clutch. A projection 49 on an arm 41 serves to limit clockwise motion of the arm 40 and indirectly arm 41 as will appear hereinafter.

The parts of the machine so far described are in the main part conventional and constitute no essential part of this invention except as will apformed as a curved arm having a hook 21 at its end. 7 When the starting lever 22 isin operating position, in which the clutch is engaged with the spindle 3 and the brake is lifted therefrom (as shown in Figure 1) the hook 2! engages another hook 28 secured to orsconstituting part of the pivoted segment 20. The machine may be maintained in running position by setting these hooks 2-1 and 28 in opposition tothe spring 25, which otherwise would tend to set the brake and to swing the starting lever 22 into the stop position.

The pressure exerted by the guide 15 against the exteriorwinding of the package is controlled by a, counterweightedarm 29 pivotally mounted on a bracket 30 fastened to the frame 2 of the machine. The link 3! is connected to arm 29 a short distance from its pivotal axis and is connected to the traverse frame 8 at 32. For adjustment, the

end of link 3| maybe inserted into any one of a series of sockets'33 provided. It will be seen that as winding proceeds arm 29 swings in a counterclockwise direction and that this swinging of the counterweight causes a gradual decrease of the force exerted by link 3i tending to turn the traverse frame 8 in a counterclockwise direction.

A tension gate 34 of conventional construction is secured on bracket 30 and the tension exerted upon the yarn passing therethrough is controlled by a link 35 having one end attached to one of the grids of the tension gate 34 and the other end attached at36 to a counterweighted arm 31 which is pivotally connected with the other arm 29. As the package grows in size, the arm 37 swings in a clockwise direction and thereby gradually reduces the tension exerted on the yarn bygate 34.

In operation of the machine, the yarn passes first through the tension gate 34 over the guide 30 of a slub catcher, under a break or exhaustion detector 38, over the porcelain bail II and through the traverse guide l5 to the package. The break detector 38 comprises a device pivotally mounted at.39 upon segment 20. The device is composed of two arms 40 and 4|, one of which 40 extends toward a wheel 42 having numerous projections or ridges 43 thereon mounted upon the cam shaft 6 for rotation thereby. The other arm 41- is bent to form a horizontal extension 44 adapted to ride upon the yarn and along which the yarn may traverse to a certain-extent. The extension 44 may be bent at the end to form a hook45 to prevent the yarn from accidentally' slipping out of engagement therewith. The first pear. hereinafter. The arm 40 of the end breakto the pivotal mounting 49 of the end breakage detector. I

In the form of the invention shown in Figures 1 and 2, an auxiliary arm 5! suitably secured to arm 29 for swinging motion therewith has a portion 52 arranged to engage arm 40 and to swing it into the path of'the projections 43 when the predetermined size of the package is attained, whereupon stoppage of the machine is effected. The arm 5| may be securedto arm 29 by means of a bolt 53, adjustability being provided for by a slot 54 in arm 29. The arm 5| also may be provided with an indicator comprising the pointer 55 adapted to co-operate with the scale 56 upon arm 29. The scale may be graduated to correspond with the sizes or packages that would be attained upon setting the pointer to the several indicia thereon.

Reference to the drawing will show that the application of the auxiliary arm 5i to arm 29 may readily be compensated for merely by an adjustment of "the counterweight on the arm 29.,

InFigure 3, a modification is shown in which a metal strip 51 is fastened to the flat portion 58 of the saddle adjacent the pivot of the counterweight arm 29. Strip 5'] has a bent portion 59 for supporting. the arm 60, the upper end of which may be bent and is adapted to move the arm 40 into engagement with the ridged wheel 42 when a predetermined size of package is reached. The arm till is provided with a slot 6! to facilitate adjustment for obtaining different sizes of packages. Elements 46 and 41' of Figure 3 correspond in function to 46 and 41 of Figures 1 and 2.

From the description of the device, it is apparent that it is quick in action and involves only a slight amount of pressure for a relatively short time during the last part of the winding. It is simple in character, readily attachable to any winding. machine and is easily adjusted.

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 changes and variations may be made without. departing from the spirit and scope of the invention as defined by the appended claims.

I claim: 1. In a winding machine, a winding spindle, a traverse mechanism, means fbr swinging said spindle and traverse mechanism relative to each other about an axis substantially parallel to that of the spindle as the winding proceeds, means for stopping saidmachine automatically comprising an arm arranged to be swung into engagement with an operating member of said machine to initiate the operation of said stopping means, a pivotally mounted counterweighted ele-' ment connected to said traverse mechanism for controlling the pressure of the traverse mechanism against said package as the winding proceeds, and means associated with said element responsive to the growth of the package arranged to co-operate with said arm to initiate the'operation of said stopping mechanism.

2. In a, winding machine, a traverse frame, means for stopping said machine automatically comprising an arm arranged to be swung into engagement with an operating member of said on said element arranged to co-operate with i said arm to initiate the operation of said stopmachine, a member having an arm movable into engagement with said element to initiate said stopping means and having a second arm in engagement with the running course of yarn being wound, 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 engagement with said element to initiate the operation of the stop means upon breakage or termination of said yarn, said first arm being pivotally mounted with respect to said second arm, a pivotally mounted counterweighted element connected to said traverse frame and a member mounted on said element for motion therewith arranged for co-operation with said first arm to initiate the stopping means independently of said second arm. I

4. In a winding machine, a traverse frame, a thread guide on said traverse frame, means for stopping said machine automatically comprising an arm arranged to be swung into engagement with an operating member of said machine to initiate the operation of said stopping means, means connected to said traverse frame for controlling the pressure of the guide against the package as the winding proceeds, and means responsive to the growth of the package associated with said pressure-controlling means and arranged to co-operate with said arm to initiate the operation of said stopping mechanism. I a

W. C. I-IANSE.

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