US2250083A - Automatic package-stop of winding mechanisms - Google Patents

Description

July 22, 194.1- F. ROSSKOPF STOP OF WINDING MECHANISMS 2 Sheets-Sheet 1 AUTOMATIC PACKAGE Filed July 29. 1940 q a," 9 O ,k R E July 22, 1941. F. ROSSKOPF 2,250,033

AUTOMATIC PACKAGE-STOP 0F WINDING MECHANISMS Filed July 29, 1940 2 Sheets-Sheet 2 f. RQSSKOPf I alto mung.

Patented July 22, 1941 AUTOMATIC PACKAGE-STOP OF WINDING MECHANISMS Fred Rosskopf, Altoona, Pa., assignor to Paragon Textile Company, New York, N. Y., a corporation of Pennsylvania Application July 29, 1940, Serial No. 348,122

' Claims.

This invention relates to winding machines, and while designed for application on a twisting and winding machine of the Atwood Twister type, for twisting and winding threads and yarns, it is applicable to and useful for the automatic stopping of the rotation of packages of material of difierent kinds, for instance, cords, twines, ropes, cables, wires, ribbons, cloth, or any material that may be broken or slackened in the winding thereof on a rotary core or into a rotary Therefore, the invention is given the title, Automatic package-stop of winding mechanisms. In the present application of the invention, its main object is to automatically and immediately,

upon breaking or slacking of the material, raise the package of material out of engagement with the rotator in such manner as to prevent the package from rotating and from unwinding while relieving the rotator from contact with and pressure of the package.

Another object of the invention is to provide a very simple, practical and effective manually operable means to hold the package-raising means against automatic operation at times when such automatic operation is not desired.

Other objects and important features are pointed out or implied in the following details of description and explanation, in connection with the accompanying drawings in which Fig. 1 is an end elevation of the mechanism which includes this invention, only a small central part being broken away and in section.

Fig. 2 is a vertical cross-sectional view taken immediately inside of the main frame, viz., eliminating the near one of the two similar endsections of the main frame, and showing the several elements of the automatic device in full lines, in elevation.

Fig. 3 is a perspective view of the automatically operable means for lifting the rotary package, and

the restraining means therefor, such as shown at the upper-right in Figs. 1 and 2.

Fig. 4 is a perspective view of a supporting member such as shown at both right and left in Figs. 1 and 2, under the apertured strip such as shown fully in Fig. 3, or bifurcated strip such as in Fig. 5. Fig. 5 is a perspective view of a unit which constitutes a part of the restraining means shown at the left in Figs. 1 and 2, seated on and frictionally engaged with the axle that constitutes an element of the rotator, the other parts of this rotator being omitted, also showing a modified form of package-raising means.

Fig. 6 is a perspective view showing another unit of the restraining means, and a section of the unit shown in Fig. 5, illustrating how these are operatively connected to one another.

Fig. 7 is a diagrammatic perspective View eliminating all exceptthe main features of my invention, and showing directions of motion, by the arrows, of the rotator, supporting strip and rotary package; the supporting position of the strip and supported position of the package being indicated by broken lines.

Fig. 8 is a front elevation of a modified form of the lower part of the bent wire element shown in Fig. 5, combined with an element that is substituted for the left end of the bent wire element shown on Fig. 6.

For a full understanding of the invention, it is deemed necessary first to briefly describe the machine on which this invention is applied or attached; and referring to these drawings in detail, similar reference numerals refer to similar parts in the several views.

The main frame, though composed of a number of primarily separate pieces, is a rigid structure composed of these pieces united by any appropriate means and consisting of two similar end-sections secured to opposite ends of supporting beams I0, H, I2 and I3 which may be considered as the base. The end-sections are also secured to opposite ends of two hollow beams or tubes I I-I4, cooperating with the beams I0 and II for holding the end sections in spaced and fixed relation to one another. Each end section includes a lower upright I5 having bearing-arms I6 at its intermediate part and bearing-arms I! at its upper end, the latter bearing arms including a beam that rests on the hollow beams I4 and secured at I8 to the narrow upper end of the upright I5 that extends between and above the beams I 4. Each end section also includes an upper upright I9 clamped on the ends of beams I4 by means of a screw or bolt 29 and the central part of a supporting beam 2| under these beam-ends. The upper uprights include bearings, 22 and 23, for purposes hereinafter explained.

The bearing-arms I6 have rotators journaled therein, each rotator being inclusive of an axle 24, one of these bearing the letter D being considered as the driving shaft, though either axle 24 could be the driving shaft, for they are cooperatively connected by two spur-gears 25, so that the rotation of either efiects rotation of the other, and either may be directly or indirectly connected to any proper kind of power source, not shown. Each rotator also includes a cylinder 26 secured on the adjacent shaft or axle 24 and having a frictional peripheral surface on which normally presses the periphery of a package 21 of material, for instance, thread or yarn, the normal position being shown in Fig. 1, at both right and left sides, notwithstanding that these packages are of different diameters, for the normal position is that wherein the periphery of the package is in frictional contact with the periphery of the rotator; and in this connection, it should be understood that the packages consist of the material m wound on cores having journals 7 that are not confined in fixed positions, but slide against plates arising as the material accumulates on the cores; and from this normal position, the respective packages can be raised by hand to the position shown at upper-left in Fig. 2, or can be raised by the automatically operable means, that will presently be described, to the position indicated by broken lines atupper- -right-in-Fig; 2.

Eachpairof' arms, of the supporting beam-s 2|, carries rollers '28,--and--on-these rollers is mounted acarriage 29 on which is mounted a thread-guidingarm 3 for distributing the thread or yarn evenlyfrcm end to end of the package -as-the winding proceeds, any appropriate. means "being employed for effecting the desiredreciprocatory motion of the carriage.

"Not'only is the mechanism thus far described previously known-and used, but previously. known means have been employed for raising the packages from the rotators; so one feature of my in- Vention is limited to the comparatively simple lifting device by which the package-lifting means is itselfautomatically lifted out of frictional contact with the rotator,- thereby relieving the latter from avery considerable pressure and friction quence of the friction of the rotator against the strip, aided by the weight 33a on an arm of the which is vastly multiplied-as resistance against the power-source, inviewof the fact that hundreds-or-thousands of these winding'mechanisms are often operated in unison froma single powersource. tion-is limited to this lifting-element in combination with a few other simple elements, as follows: I

One form of the invention is illustrated in the upper-right of Figs. 1 and 2,-and in Figs. 3, 4 and 5, Where' a thin strip 3 l or 3-lanorma1lylies flat'on the frictional periphery of the sub-jacent rotator-cylinder 26 and has its apertured ends inengagement with the restraining means, viz., "with-arms 32 that'extend through said aperturedends in proper relation to permit the strip '3l to slide upward and downward on these arms which have their upper ends united with a pivotally mounted supporting and spacing beam 33 which has bearings arounda' rod or axle 35 supported in the bearings 23 at theupper right. An arm 3$ is united with the beam 33 and extends downward and outward beyond a straight line between the upper part of the package 21 and a guide or spool-like roller 29a over which the material m travels, one of such rollers being journaled' on each carriage 29; and as the material also slides over a horizontal part 3811 and is'normally under considerable tension, it-depresses this arm'36-35a and holds it depressed until the tension is relieved by breakage or by the emptying of a-spool or reel from which the thread or yarn is being paid out to the winding package; but when the tension is relieved, the entiredevice shown in'Fig. 3 is automatically turned about theaxisof the rod 35 inconse -Or, morecorrectly stated, theinvenmember 33; and this turning motion of the restraining means (32 to 35:1) permits the strip or lifting means 3! to be carried under the package 21 and thereby lift it from the rotator. However the said lifting means would be there left in frictional engagement with the rotator if it were not for the presence of one of the supporting elements 3! (Figs. 1, 2 and 4) under each end of the strip 3|, in the proper relation to support the strip above the frictional periphery of the rotator. These elements 31, of two different devices such as or similar to that shown in Fig. l, are located adjacent to opposite ends of the frictional periphery of the rotator and disposed tangentially thereto; so that, as the strip 3! is carried under the rotary package, it is simultaneously slid upon the sub-j acent supporting elements 3'! and thereby supported out of contact with thesub-jacent rotator, thereby relieving the rotator of pressure or weight of the package and frictional contact with the lifting means 3|.

. Referring now to another embodiment of the invention, as shown at the left in Figs. 1 and 2, and in Fig-s. 4, 5 and 6, it is seen that the restraining means consists of the pivotallymounted member or unit 38, pivotally and frictionally mounted on the axle 24 of the rotator-cylinder 26 at left, and having its arms 38a through the apertured ends of the correlated strip 3|, while its horizontal lower end 381) is pivotally connected to a material-engaging element-39 which has a loop 39a through which the material passes to the superposed package being wound. The material m also passes through a guide 48, and. being under tension, normally restrains the parts 39, 38 and 3! from moving from their normal position shown in Fig. l; but when the tension of the material m is relieved by breaking or slackening of the material, the frictional engagement of the rotator and strip 3| carries the latter under the superposed package 21, and the momentum of the latter and of the strip causes the latter to slide upon the sub-ja-cent tangential supports to a sufficient distance to quite relieve or eliminate the frictional engagement of the rotor and strip 31 The element 39 may be eliminated and replaced by a bent wire element 380 welded or otherwise secured at 38d to the horizontal part 38b of the bent wire-element 38. 'When this modification is in 'use, the material 1n is passed over 'therelement 330, instead of being passed through the loop 39a.

For reasons well known to persons familiar with the operations of winding mechanisms of this character, it is desirable to secure the restraining means in the normal position at times,

machine is stopped, and when the power is being turned on for starting the machine; so a simple and effective hand-operated means is provided in the bearings'22, viz., two rods or shafts 4!, each carrying an arm 42 and a gearwheel 43, these gear-wheels being intermeshed so that the rotation of'one rod 4| rotates the other rod in the opposite direction, a handle 44 is provided on one rod or axle 4| in the proper relation to also serve as a weight for retaining the arms 42 alternately" in the depending position of Fig. land the upright position of Fig. 2. Abutments'45 are united with arms 42 for abuttin-g against the'arms 32a and 38a when in" the position shown in Fig. 1; but when the handle 44 is turned upward and leftward, the arms 42 are turned and held in the position shown in Fig. 2, so the lifters 3| can be operated automaticallyin the manner explained.

While it is true that different forms of the invention are shown in the right and left sides of each Figure 1 and 2; it is just as true that either form is applicable to either side of the machine; and while the bifurcated strip 31a is shown only in Fig. 5, it is even more useful or convenient when applied on the arms 32 of Fig. 3, for its bifurcated ends enable it to be more quickly and easily removed and replaced, and without necessity of removing the arms 32.

Though the lifting and supporting elements 3! are shown in duplicate in Fig. 4, and provided with a loop for receiving a screw or other securing means, only one element 31 at each end of the respective rotators is needed, the other one in Fig. 4 being for use with another set of elements such as herein-before described; for each machine contains a large number of such sets all operating in unison and driven from a powersource and driving shaft D that is common to all the sets. Moreover, the element 31 at left in Figs. 1 and 2 has no loop, but a straight shank in a socket and held in place by a set-screw. There is a pair of the units 31 for each rotator, for instance, one shown at the right in Fig. 1, and the complementary one of the pair shown at the right in Fig. 2.

I have no intention to limit my patent protection to the precise details of construction and arrangement shown and specified in the foregoing, for the invention is susceptible to numerous structural changes within the scope of the inventive ideas as implied and claimed.

I claim the following as my invention:

1. In an automatic package-stop of a winding mechanism, the combination with a rotator, and a rotary package of material normally having its periphery in frictional contact with the periphery of the rotator in proper relation to be rotated thereby, of a pair of supporting elements tangentially disposed near opposite ends of said rotator, means normally in frictional contact with the rotator and adapted to be carried thereby under said rotary package when not restrained and to ride upon said supporting elements and first said means being a strip having apertured ends, and the second said means being inclusive of elements that extend through said apertured ends so as to permit the latter to move freely upward and downward.

3. The combination defined by claim 1, the first said means being a strip having bifurcated ends, and the second said means being inclusive of elements that extend through said bifurcated ends so as to permit the latter to move freely upward and downward.

4. The combination defined by claim 1, said rotator being inclusive of an axle, the second said means being frictionally engaged with said axle so as to be cooperative with the frictional contact of the first said means in moving the latter under said rotary package.

5. The combination defined by claim 1, and means manually movable to the proper position for restraining the second said means against movement by the rotator and the first said means when not controlled by said material.

FRED ROSSKOPF.

Images