US2184723A - Traversing roll for winding and like machines - Google Patents

Description

Dec. 26; 1939; Y F. PARKS; 2,184,723

TRAVERSING ROLL FOR WINDING AND LIKE MACHINES I Filed Feb. 24, 1938 3 Sheets-Sheet 1 Dec. 26,1939. EQ F, PM; 2,184,723

TRAVERSING ROLL FOR WINDING. AND LIKE MACHINES Filed Feb. 24, 1938 s Shets-Sheet 2 Dec. 26, 1939. E F PARKS 2,184,723

TRAVERSING ROLL FOR wmnme AND LIKE MACHINES Filed Feb. 24, 1938 s Sheets-Sheet 5 Patented Dec. 26, 1939' iso STATES TRAVERSING ROLL FOR WINDING AND r 1 MACHINE Edward F. Parks, Providence, R. L, assignor to Universal Winding Company, Cranston, E. 1., a corporation of Massachusetts Application February 24, 1938, Serial No. 192,350

' 12 Claims.

This invention relates to an improved traversing roll or drum for guiding a strand or strands of yarn or the like back and forth longitudinally of the spindle of a Winding machine to wind a cop or package or for similar purposes. The present improvements are particularly adapted to a grooved traversing roll or drum of the character shown in United States Letters Patent No. 1,749,355 granted to Franklin A. Reece on March 19 4, 1930, but are also applicable to other types of rolls or drums ha ing helical or part helical formations on their peripheries for enga and traversing strands of yarn or the like.

The traversingroll of the Reece patent is illustrated and described as being constructed as a cylinder made in one piece and a particular object of the present improvement is to provide a roll constituted by a plurality of complementary sections assembled as a ifnit.

Another object of the invention is to provide a sectional traversing roll or drum having a grooved peripherywith its sections adapted to be molded from plastics or like materials such as the phenol condensation product known by the trade-name Bakelite; or from glass, porcelain, and other ceramic and like plastics.

Another object of the invention is to provide a grooved traversing roll or drum constituted by a plurality of sections formed without grooves on their peripheries but adapted to be assembled with their end faces cooperating to form helical grooves on the circumference of the roll.

Another object of the invention isto provide a traversing roll or drum of hollow sectional 85 structure whereof the parts may be more cheaply shaped or molded. v

Another object of the invention is'to provide a traversing roll or drum of sectional structure whereof if one or more of the parts become broken or damaged the roll'may be repaired by merely substituting a corresponding part or parts for the broken ones. Another object of the. invention is to provide 5 a sectional traversing roll or drum which may be economically manufactured from-materials affording maximum resistance to wear to render it more durable in use for the purposes specified.

Further objects of the invention are set forth 5 in the following specification which describes a preferred form of construction of the improved traversing 'rollor drum, by way of example, as

illustrated by the accompanying drawings. In the drawings:

Fig. 1 is a side view of an improved traversing" (Cl. 2&2-43) roll or drum constructed inaccordance with the present invention;

Fig. 2 is an end view of the same; Fig. 3 is a composite view showing the several sections of the traversing roll or drum in disassembled relationship;

Fig. 4 is a view of the opposite side of the roll from that shown in Fig. 1;

Fig. 5 is a composite view of the disassembled sections of the traversng roll viewed in the same direction as in Fig. i;

Fig. 6 is a longitudinal sectional view of the traversing roll on line 6-4: of Fig. 2; I

Fig. '1 is a view of the left-hand section of the roll viewed in the direction indicated by the ar-. 15 row I in Fig. 3;

Fig. 8 is an end view of one of the comple mentary intermediate sections of the roll viewed in the direction indicated by the arrow 8; and

Fig. 9' is a sectional viewsimilar to Fig. 6 on 20 .line- 9-9 of Fig, 2.

The use of rotary traversing rolls in winding Y machines came with the inception of the device shown and described in the Reece patent, hereinabove referred to, and marked a long step in 25 advance in the art of winding as providing for high speed operation of the machine; elimination of vibration and consequent shock and wear on the parts, due to the displacement of reciproeating or oscillating traverse-guides; and fur- 30 ther, in generally reducing the ,cost of manufacture of the machines and improving their product. The Reece rolls have in some instances been constructed-of metal, but are usually molded from plastics such as Bakelite? in which case 85 ,the molds are complicated and expensive to make. Moreover, where the roll or drum is -molded in one piece it requires extreme care in' operating the molds to prevent defects which, even though slight, will prevent proper opera- .40

.tion of the roll in the winding machine. With the present improved form of roll constructed in sections the molds may be of simpler form and operated with greater facility so that the complete roll or drum is less costly'to manufacture. 46 Furthermore, a defect in one section of the roll, due to improper molding or. other causes, can be corrected by supplying a corresponding perfect part and thus there is much less loss from spoil- 7 age. Likewise, as before indicated, damage to or 50 breakage of any part of the sectional roll or drum can be repaired by merely replacing the defective section with a perfect one.

The present drawings illustrate the invention as consisting of a sectional traversing roll of substantially the same grooved form as shown and described in the aforementioned Reece patent, but it is to be understood that the invention is applicable to other types of traversing rolls or drums having helical or part-helical formations on their peripheral surfaces for guiding a strand to traverse it in opposite directions lengthwise of the roll.

Referring first to Figs. 1, 2 and 3 of the drawings, the present improved traversing roll or drum 2 is herein shown as comprising six sections, being divided substantially in line with the helical grooves which extend in opposite directions encircling the periphery of the roll. While in some cases the groove of grooves on the roll may have a uniform pitch as illustrated in the Reece patent, the roll shown in the present drawings is formed with what is termed as accelerated" lead or pitch; that is, its pitch or lead increases gradually from one end of the roll to the other. In general, the two end sections 3 and 4 of the roll are of substantially the same construction, the left-hand end section 3 as shown in Figs. 3 and 5 being of somewhat greater width or thickness than the opposite end section 4 due to the accelerated pitch of the grooves. All the sections of the roll are of hollow cylindrical form and the intermediate sections 5, 6, I and 8 have their end faces of complementary shape to cooperate with those of adjacent sections to form the grooves when the parts are assembled as shown in Figs. 1 and 4.

The cylindrical walls of the several sections of the roll may be made of any desired thickness and are preferablyof substantial dimension to give strength and solidity to the structure. Referring to Figs. 6 and 9 of the present drawings, which illustrate the roll in longitudinal sectional view, the parts of the cylindrical shell or roll proper are preferably constructed of plastic material with the end sections 3 and 4 mounted on hubs 9 and I constructed of metal. The hubs 3 and Iii are let into enlarged bores in the end sections 3 and 4 and extend therethrough into counterbores in the next adjacent sections and 8, respectively. The hubs 9 and ID are bored axially to receive a shaft such as that shown at l5 for rotatably mounting and driving the roll in the winding or other machine. As herein illustrated, the roll 2 is held fast on the shaft I5 by means of set-screws l6 screwed into radially-extending threaded holes I! in the hubs 9 and ill to bind against the shaft. It will be noted by reference to Fig. 6 that'the end sections 3 and 4 of the roll are provided with radial holes l8 registering with the threaded holes I! in the hubs 3 and. It) to permit insertion and. adjustment of the screws IE to key the roll to the shaft. In other instances, however, the end sections 3 and 4 of the roll may be constructed 'with integral hubs having axial bores fitted to the shaft I 5 on which the roll is mounted. In such case, the setscrews may be threaded into metal bushings in radial holes in the end sections. In still other instances the roll may be mounted to rotate on its supporting shaft and be driven by other means such as a pulley or gear attached to its end. Preferably, the outer faces of the end sections 3 and 4 are undercut or recessed to form relatively narrow flanges l9 at the periphery of the roll I to facilitate grinding for squaring the endsof the roll.

Referring still to Figs. 6 and 9,-i t will be observed that each of the intermediate sections 5, 6. 1 and 3 of the roll has sleeve-like portions 20.

2|, 22 and 23, projecting at their ends .and corresponding in outside diameter to that ofthe metal end hubs 9 and ill. The walls of these sleevelike portions are of less thickness than the main walls of the roll'and terminate in planar end faces normal to the axis of the roll. Thus, the roll is divided on its interior into a series of cylindrical components of substantially the same length axially and having abutting faces disposed in planes normal to the axis of the roll as shown most clearly in Fig. 6. I

The several sections of the roll areadapted'to be connected or tied together by one or more longitudinally-extending rods or bolts '25 shown most clearly in Fig. 9. The bolts 25 project through lateral bores 26 in the end hub II) with their heads seated in counterbores 21. The opposite ends of the bolts 25 are screwed into threaded holes 28 in the end hub 9. By tightening the bolts 25 the several parts of the roll may be drawn together with the flat faces of their sleeve-portions in abutting relationship to properly relate the helical faces of the sections and provide a firm and stable structure.

The projections at the ends of the sections of the roll may be ,so constructed as to interlock to prevent relative .rotary movement therebetween; or their sleeve-portions may be'formed with interlocking tongue-and-slot formations. As herein shown, a tongue or key 30 on the hub 9 of the end section 3 engages in a slot or opening 3| in the end of the sleeve-portion 20 of the next section 5; a similar key 32 at the opposite end of the sleeve-portion 20 interfits with a slot 33 in the end of the sleeve-portion2l of the next section 6; and so on throughout the whole series of the complementary parts, the section 8 having a key 36 which engages in a slot 31 in the end of the hub of the end section 4.

As has been stated, the roll 2 is divided into its sections following the helical course of the grooves which define the path of traverse of the yarn from one end of the roll to its other end and back again in the opposite direction. The end faces of the several sections are generated on reverse helices and vary somewhat in inclination with respect to the axis of the roll in the manner of a screw thread. When the sections are assembled as shown in Figs. 1 and 4 the outer peripheries of the hubs 9 and I0 and the sleeveportions 20, 2|, 22 and 23 form the bottom walls of the grooves as shown most clearly in Figs. 6 and 9. One groove, indicated by the reference character 40, leads from the left-hand end of the roll 2 helically toward the right-hand end,

as viewed in Fig. 1, with a pluraiity of turns of right-hand pitch until it reaches the opposite end of the roll at 4| where it joins the reverse groove 42. The reverse groove 42 extends in the opposite direction with a left-hand lead until it merges into the opposite groove 40 at the lefthand end of the roll as indicated at 43. That is to say, the two grooves, or parts of a continuous groove as the roll is herein illustrated, traverse the roll helicallyinopposite directions and are joined at their ends with relatively sharp reversal points. I

In the present illustration of the invention each groove is shown as encompassing the roll in two and one-half turns or convolutions, which is an arbitrarily selected form of construction, to adapt the roll or drum to wind that number of turns on the holder at the start of the package.

In other cases; however, the roll may be con-' of the roll they cross at several points. twice on Y each side of the roll. in other instances where the grooves make an even number of turns or convolutions. as for example four turns in each direction, there will be four points of crossing on one side of the roll and three points on the op.- posite side as illustrated in the Reecepatent, before referred to. As set forth at length in the specification of this latter patent, it is necessary that the grooves be so formed at their crossing points as to prevent reversal in the direction of traverse of the strand at the junction of the grooves. For this purpose the bottom profile of the grooves is altered at the crossing points by making one groove of less depth than the opposite groove so that the strand will ride up toward or to the surface of the roll as it is guided in one groove to cause it to pass over the reverse groove. As a further provision for preventing diversion of the strand from one groove into the reverse groove at the points of crossing, the portion of the groove beyond the crossing point is widened to catch the strand. Stated briefly, at

points where the strand would have a tendency to be diverted from one groove into the groove of opposite handthe groove in which the strand is being guided has a widened mouth or entrance portion at its receiving end to capture the strand as it is lifted to pass across the opposite groove. This peculiar formation of the grooves may be varied, for example, as shown in United States Letters Patent to Anton E. Bood, No. 1,836,105, dated December 15, 1931, where the opposite portions of the grooves at the crossings are offset one with respect to the other to function in the same way to capture the strand as it is raised or lifted to cross the. groove of opposite direction. Still other forms'of constructions of the grooving may be employed to prevent reversal of the strand until it has been traversed from one end of the roll toits opposite end and the present invention is applicable to any such forms of grooving the' roll or of shaping its periphery whereof to guide the strand continuously from end to end of the roll.

In the present embodiment of the invention the bottom profile of the grooveor grooves is raised at the-crossing points by providing projections from the side of one section of the roll overlying the sleeve-portion of an. adjacentrollsection. Extensions from the end faces at certain locations on the roll sections project into recesses in the faces of adjacent sections. Referring to Fig. 3 of the drawings, it will be noted that the end section 3 of the roll is formed with a lug 45 projecting at one side of the point where itshelically-generated face meets the face of oppositely-extending helix. When the end section 3 is assembled incooperative relationship with the next section 5 thelug 45 will project in under the pointed portion '46 of the latter 'section, as shown in Fig. 1, in overlying contact with the cylindrical face of the sleeve-portion 20 so that it forms a .rc'unded hump or protuberance thereon to raise the profile of the bottom of the groove outwardly toward the periphery of the roll. Opposite the point 45 of the section 5 its right-hand face merges into a spear-shaped lug or projection 41, the right-hand side of which is rounded to underlie the inwardly-beveled face of the helically-generated side of the next section 5, see Fig. 1. The lug 41 has a rectanguiarly-shaped bevel-sided extension 48 which errters a similarly shaped recess 49 in'the end of the avoid leaving a crack or opening liable to catch the strand. I

On the side of the crossing where the lug 41 is of the section 5 of the roll, this formation providing areentrant mouth to capture the strand as it is lifted above the bottom or floor of the groove on the lugs 45 and 41. The widened mouth of the groove 40 may be formed by beveling the end face 55 of the section 5 at an angle to a plane normal to the axis of the roll or by any'other similar construction.

, Referring to Fig. 5 of the drawings, it will be noted that the shape of the section 6 is substantially the same as that of the section 5 except that the position of the lug 41 is reversed. Likewise, section 1 is of substantially the same form to adapt it to interfit with section 6 and sections 1 and 8 have their end faces of complementary form in substantially the same arrangement; in each case there being a lug or projection on one section which underlies a portion of an adjacent section and forms a raised protuberance or hump for lifting the strand across an intersecting groove. As shown in Fig. 5 the opposite side of.

section 5 from that illustrated in Fig. 3 has a lug 5| of slightly different form from the projections 7 previously described. The lug 51 has a generally arcuate shape throughout the whole width of its outer'face with a narrower rounded portion 52 projecting from its end. The projection 52 is adapted to seat in a substantially round hole 53 in the end wall of the end section 3, see Fig. '1, thus serving as sort of dowel between the parts. At either side of the hole 53 the end face of the section 3- is recessed at 54 to receive the arched main portion ofthe lug 5l. The joint between.

When the several sections of the roll are assem-- bled and tied together by means of the bolts 25 the ends of the hubs 9 and I0 and the cylindrical sleeve- portions 20, 21, 22 and 23 abut to locate the helical faces of the sections in spaced-apart relationship to form the reverse grooves with the peripheries .of the cylindrical hubs and sleeves constituting the bottom wallsof the grooves.

' The bolts 25 serve to hold the parts of the roll in connection so that it may be handled as a unit for application to the winding or other machine in which it is to be used.

' It will be observed from the foregoing that the present invention provides an ingenious construc- 15 located the groove 40 is widened by cutting away the helically-generated face at the right-hand end i tion of sectional traversing roll or drum, the parts of which may be more readily and inexpensively molded from plastics or ceramics while insuring a more durable construction. Moreover. the Present improved sectional roll has the advantage of being subject to repair by replacing any one'or out departing from the spirit or scope of the invention. Therefore, *without limiting myself in this respect, I claim:

1. A strand-traversing'roll for winding and other machines comprising a plurality of interfitting cylindrical sections shaped at their ends to form grooves on its periphery extending heli,--

cally in" opposite directions and adapted to receive and guide astrand or strands.

2. A strand-traversing roll having helical guiding paths formed on its periphery for directing a strand longitudinally thereof from end to end of the roll, said roll'divided across its. axis into a plurality of complementary sections following the helical conformation of the yam-guiding paths to facilitate molding it from plastics or ceramics.

3. A strand-traversing device: consisting in a rotary element having on its peripheral surface a groove or grooves extending helically' thereof in opposite directions, said element being divided angularly of its axis into a plurality of complementary sections following the helical conformation of the grooves. A

4. A strand-traversing roll of the type indicated divided longitudinally across its axis into a plurality of complementary sections with the end faces of adjacent sections cooperating to, provide helically-extending guiding paths of opposite hand for receiving and guiding a strand or strands:

5. A strand-traversing roll divided longitudinally across its axis into a plurality of complementary sections with the end faces of adjacent sections cooperating to provide helically-extending yarn-guiding paths of opposite hand, and means for clamping said sections together to form a unitary structure.

enemas 6. A strand-traversing roll of the type indicated comprising a plurality of complementary sections having their end faces generated on opposite helices and cooperating to form grooves on the periphery of the roll, the bottom walls of the grooves being formed by substantially cylindrical portions of the sections.

7. A strand-traversing roll of the type indicated comprising a plurality of hollow cylindrical sections having their end faces generated on opposite helices and provided with interior cylindrical portions terminating in planar faces adapted to abut to space the helical faces of the sections apart whereof to provide grooves with the bottom of the groovesjformed by the peripheries of the cylindrical portions of the sections.

18. A strand-traversing roll of the type indicated constituted by a plurality of interfitting cylindrical sections having their end faces generated on oppositely-extending helices and formed with interior sleeve-like portions having abutting planar. faces for spacing the helical faces of the sections to form grooves of rightand left-hand pitch.

9. A strand-traversing roll constituted by 'intermediate and end sections of cylindrical shape having complementary helicaliy-extending faces forming channels on the periphery of the roll for receiving and guiding a strand in opposite directions from end to end of the roll.

10. A strand-traversing roll comprising a plurality of cylindrical sections having complementary end faces forming helical grooves extending in opposite directions and crossing each other at intervals.

11. A strand-traversing roll comprising a plurality of cylindrical sections having complementary-end faces forming helical grooves extending in opposite directions and crossing each other .at intervals. said grooves profiled of less depth adjacent their points of crossing.

12. A strand-traversing roll comprising a plurality of cylindrical sections having complementary end faces forming helical grooves'extending in opposite directions and crossing each other at intervals, said grooves profiled of less depth at their points of crossing and a portion of each groove being widened at one side of the groove which it crosses. EDWARD F. PARKS.

Images