US2293983A - Yarn guiding device - Google Patents

Description

1942- A. 1.. JACKSON 7 2,293,933

YARN GUIDING DEVICE Filed Feb. 13, 1941 awe/whoa Patented Aug. 25, 1942 6 Claims. (Cl. 242-48) This invention ,relatesito .the winding of yarns, threads and-the like. and is more particularly concerned with .threadguides employed in such operations.

costly delays in winding operations arising from the thread riding out of the groove.

While the above problem arises as an incident in 'alltypes of winding operations involving a .In the winding of ,thread .or the like, regard- 5. moving thread guide,- aparticular problem has less of the technique employed orthe machinery arisen in the cor-Ling of rayon threads into packused, it has'long'been customary to provide guides age form suitable for shipment to the consumer. to insurethe maintenance of .themoving'thread The coning Operation consists essentially in in apredetermined path .of travel, .adequateconthe winding of already treated and twisted trol being otherwise impossible of attainment. 1O thread onto a conical support ,to produce a dense, Generally speaking, this control is of two types; firm package suitable for economical and *efiione-in which thread-must be :maintainedin a cient transportation. Usually a driven cone single path of travel, and the-other in which draws thread upwardly from a source of supply thread must be directed bythe guide into variand .a traverse 'mechanismlays up, the thread ous paths of -travel. In the first instance, the on the cone insuccessive oppositely directed helirelative positions of the guide and thread path cal courses. The traverse mechanism .may conare constant while in the second there is relasist of a bar caused to reciprocate .and anarm tive -movement between the thread guide and carried by saidbarandoverlying the cone. A any single thread-path. Since winding speed is a thread guide or..button is :mountedyon the free prime considerationin operating efiiciency, it is 20 endof this armrto directthe thread .onto the readily recognized that speed in threading up cone. Inasmuchwasaudense hard'packageris is secondary in importance only to the proper desired, considerable tension is applied to .the functioning of the guide in maintaining the thread and the traverse arm is counterweighted thread in its proper path. to maintainthe buttoninfirm engagement'with The problem of maintaining thread in a path the cone or package. Because of .the considof travel can, of course, be solved by the proerable tensionto' which the thread .isv subjected vision of any type-of encircling eyelet, this conthe traverse button of conventional construcstruction, however, requiring a slow and tedious tion can be used with reasonable assurance that threading up operation consisting in passing the n the thread will be retained in the groovethereend of the thread through the eye. 'To overof. However, alsoas an incident of thread tencome these slow threading difficulties, the wellsion, breakage is a fairly frequent-occurrence. known pigtail guide was developed and has This results in stoppage of a unito-f the coning met with wide success when used in operations machine and requires the attention of the operwhere the thread guide maintains a fixed poator to tie the ends and possibly to thread up sition. again. During the stoppage of the machine,

On the other hand, the type'of guide which while knotting of the several thread ends is moves, such as that used as a part of a traverse accomplished, considerable slack is formed mechanism, cannot be constructed in the-manwhich, of course must be removed before norner of a ,pigtail guide since the surface of malcperationmay-be resumed. Generally slack the guide must be rounded to contact a thread 40 is removed Icy-manually pulling a loop between package and the guide must maintain a conthe traversing thread guide and the cone, the fining action evenwhile exerting force in a latlatter being started slowly and allowed to take eral sense to cause thread displacement. Thus, up theloop gradually. This operation, when the conventional thread guide which moves with performed inconjunction with conventional marespect to a single path of thread travel is, as chinery, frequently results-in the thread jumpat present/constructed, merely asegment of a ing out of the traverse button to become ensphere having a radial groove therein adapted snarledin the machine thereby again causing to receive the thread. The rounded surface of stoppage and further costly delay in production. this type of guide, which is commonly designated r, Furthermore, regardless of the problem of re in the winding industry as a button, is adapted moval of slack, smooth, lubricated threads of to contact a thread package while the tension synthetic origin-even under considerable tension of the thread serves to maintain the same within may rather readily become I displaced from a the confines of the groove. Such a guide, not conventional type traverse button which is nonbeingan encircling one, presents nothreading r; encircling in character.

up difliculties but is the cause of frequent and It is, therefore, an object of this invention to overcome all of the foregoing disadvantages and to provide a thread guide which entirely surrounds and confines a moving thread, is selfthreading and may be relatively moved with respect to a thread path with full assurance that the thread will not become disengaged.

According to this invention it is contemplated that traverse guides may be designed to entirely encircle and confine a moving thread while fully retaining the self-threading and package contacting advantages of conventional traverse buttons.

It is a further object of this invention to provide a simple, inexpensive and easily constructed thread guide of wide general utility, characterized by freedom from protruding edges where thread is likely to become snarled.

Other objects and advantages of this invention will be apparent upon a consideration of the following detailed description of a preferred embodiment thereof in conjunction with the annexed drawing wherein:

Figure 1 is a view in end elevation of a portion of a conventional cone winding mechanism showing one form of the novel thread guide operatively associated therewith;

Figure 2 is a view in rear elevation of the thread guide per se showing the thread contacting face of the traverse button;

Figure 3 is a view thereof in side elevation;

Figure 4 is a view thereof in front elevation; and

Figure 5 is a top plan view illustrating the spacing between the button and its supporting structure whereby the guide is rendered selfthreading.

The portions of a conventional winding machine that are shown in Figure 1 consist of a cone winder l such as a cardboard cone or other core for a thread package A weighted lever I2 is pivoted below the cone center and is provided with a groove l3 in its upper end receiving traverse bar M which is caused to reciprocate by a cam arrangement of conventional construction (not shown).

A preferred form of thread guide, constructed according to the present invention, is shown attached to traverse bar l4 and extending into thread distributing position.

This thread guide consists of a shank or stem portion l in the form of a fiat plate having a foot |6 attached to the traverse bar I4. At the end of shank or plate l5 remote from foot I6, it is provided with an integral head portion I! having therein a reentrant recess at |8 opening at l9 generally at a right angle to the long axis of the shank. Recess |8 extends from the opening toward the free end of the shank I5. Underlying head portion ll of shank I5 is a thread button 20 having therein a V-groove at 2| which opens in the direction of the cone winder l0 and consequently away from the foot 5. Thread button 20 is in the form of a segment of a sphere, the convex surface being disposed in thread package contacting position.

Upon reference to Figures 2 and 4, it will be seen that the bottom of V-groove 2| of button 20 is disposed in registry \m'th the bottom of reentrant recess |8, the head I! of shank l5 and the button 20 together defining an encircling thread aperture. Screws 22 serve to connect thread button 20 and the head I! of shank l5. It is an important phase of this invention that the point of attachment of these two members be on the same side of shank I5 as the mouth I9 of reentrant recess l8, and that the point of attachment lie between said mouth and the mouth of V-groove 2|. The reason for this is clear upon consideration of Figure 5, wherein it will be seen that head I! of shank I5 is sprung outwardly at 23 on the side of button 20 opposite the side receiving screws 22 for the purpose of spacing said headand. said button. Thus, at the side of the guide having no laterally extending recess, button 20 and its support, head H, are spaced while on the side having mouth IQ of reentrant recess l8 therein screws 22 serve to block the passage of thread between button 20 and head When the machine shown in Figure 1 is used in a winding operation, a thread 24 is passed from a source not shown through the various guides of the machine and finally across bail 25, through the guide just described for attachment to cone winder l0. Cone winder H) is then caused to be driven and thread 24 is wound thereon in a series of oppositely directed helical courses under the control of traverse bar l4 acting through the novel thread guide.

Because of the fact that button 20 and head I! are attached at a point within the sector defined by the mouth of groove 2|, mouth l9 and the thread aperture, thread 24 will be fully confined by the guide even while it is exerting lateral force to cause the thread to be laid up under control of traverse bar I3. The reason for the confinement will be evident when it is borne in mind that at the side of head I! having mouth l9 therein, screws 22 function to prevent thread from passing out of groove 2| between button 20 and head H to escape through mouth I9 while on the op osite side of recess l8 head |1 presents an unbroken surface even though button 20 and head I! are there spaced apart. Of course, the top edge of head I! fully closes the mouth of groove 2| as can be readily seen in Figures 2 and 4.

Despite the fact that the thread guide defined by button 20 and head I! is of the encircling type it is entirely self-threading it being necessary only to manually introduce a length of thread into mouth I9 with the portion thereof between bail 25 and the guide above shank l5 as shown in Figure 4 and the portion between groove H3 and cone winder l0 beneath head I! and button 20 as viewed in the same figure. Thereafter a loop may be pulled to the right of Figure 4 and the thread allowed to pass between button 20 and head H at 23 to become seated in groove 2|.

Although the thread guide shown is applied to a coning machine it will be recognized that it is readily adaptable to any type of winding apparatus the rounding of button 28 and the curvature of head I! serving to eliminate edges of a type which have heretofore caused much snarling and attendant difliculty. While the guide is primarily designed for movement with respect to a thread path it may be employed without modification in a stationary position.

Having now described the invention in its preferred form, it is understood that variations and modifications may be made therein without departing from the spirit of the invention, and it is desired that the scope thereof be limited only by the appended claims.

What is claimed is:

1. A traversing thread guide comprising two members each having a recess therein opening marginally thereof, said members being superimposed with the openings of said recesses out of registry but with the bottoms of said recesses in registry to define an encircling thread opening, said members being mutually attached only at a point within the right angle made by the mouth of one recess with respect to the mouth of the other, and a stem attached to one of the members.

2. A guide adapted to confine thread yarn or the like during a winding operation involving relative movement between the guide and the path of travel of the thread comprising, a member having a groove therein, a second member, a part of which overlies the first, said second member having a reentrant recess therein, a portion of which is in registry with a portion of the groove to define a thread encircling opening, the mouth of said recess being disposed at approximately a right angle with respect to .the mouth of said groove, said members being attached only at a point within said right angle and being elsewhere spaced to form a thread entrance whereby the guide may be automatically threaded.

3. In a cone winding machine including a driven cone winder and a reciprocating traverse bar, an encircling thread guide for directing thread as it is laid up on said cone winder comprising, a cone contacting traverse button having a groove therein and means connecting said button to Said traverse bar, said means having a reentrant recess therein opening laterally thereof and extending longitudinally away from said traverse bar, said button and said means being superimposed with the mouth of said groove opening in the direction of the cone Winder and a portion of said groove and a portion of said recess in registry to define an encircling thread aperture, said means being attached to said button only on the side thereof having the mouth of the recess therein, said button and said means being spaced at the other side of the reentrant recess to form a thread entrance whereby the guide may be automatically threaded.

4. In a cone winding machine including a driven cone winder and a reciprocating traverse bar, an encircling thread guide for directing thread as it is laid up on said cone winder comprising, a cone contacting traverse button having a V- groove therein and an elongated rigid plate conneoting said button to said traverse bar, said plate having a reentrant recess therein opening laterally thereof and extending longitudinally in the direction of said cone winder, said button and a portion of said plate being superimposed with the mouth of said groove opening in the direction of the cone winder and with the bottom of the groove in registry with the bottom of the reentrant recess to define a thread encircling aperture, said plate and said button being attached only at a point between the mouth of said groove and the mouth of said recess on the side of said plate having the mouth of the recess therein, the button and plate being elsewhere spaced to form a thread entrance whereby the guide may be automatically threaded.

5. A thread guide for use in coning machines and the like comprising, a supporting stem, an integral plate carried thereby, said plate having a reentrant recess therein extending longitudinally away from said stem and opening generally transversely of the long axis thereof, and a memer having a groove therein said member being superimposed on said plate with the mouth of the groove extending away from said stem but with a portion of the groove in registry with a portion of said recess to define a thread opening, said plate and member being attached only on the side of said plate having the mouth of the reentrant recess therein, the plate being bent to space the other side of the same from said member to form a thread entrance whereby the guide may be automatically threaded.

6. A thread guide for use in coning machines and the like comprising, a supporting stem, an integral plate carried thereby, said plate having a reentrant recess therein extending longitudinally away from said stem and opening generally transversely of the long axis thereof, a member having a groove therein said member being superimposed on said plate with the mouth of the groove extending away from said stem but with a portion of the groove in registry with a portion of said recess to define a thread opening, and means connecting said plate and said member only on the side of said plate having the mouth of the reentrant recess therein, the plate being bent to space the other side of the same from said member to form a thread entrance whereby the guide may be automatically threaded.

ARTHUR. L. JACKSON.

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