US1420966A - Flier for roving frames - Google Patents

Description

L. W. CAMPBELL.

FLIER FOR ROVING FRAMES. APPLICATION H'LED MAY 2, 1919.

2 n d m 7H 4 0n M d w m m D L w. CAMPBELL. FLIER FOR ROVING FRAMES. APPLICATION FILED MAY 2| 19'19.

Patented June 27, 1922.

-2 SHEETS-SHEET z,

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UNITED ST LEON w; CAMPBELL; or PROVIDENCE, RHODE ISLAND.

FLIER roe, EOVING FRAMES.

Application filed May 2, 1919; serial Nb. 294,311

To all whom it may cmiccrn:

Be itknown that LLEONdV. Gamers, a citi z'en ot the United States, residing at Providence", in the county of Providence, State of Rhode Island, have invented certain new and usefulImprovements in Fliers for Roving Frames, of which the following is a specification.

My invention'is an improved flier for rovlag-names or like textile apparatus. I The object of my improvement is to provide means for I controlling the action of the presserwliich winds the roving on the bobbin. whereby a more constant and uniform tension is maintained on the strand to insure smelt even and level yarn in the finished product. A further object of the improvement isto provide a simpler and more convenient method or threading the flier with the rovingstrand, and in general to render the device easier tooperate andmore eflic ierit in use".

The manner and means for carrying out these improvements are fully described in the following specification, illustrated'by' the accompanying drawings, in which lilie reference characters designate like parts. the drawings:

Figi 1 isa side elevation of my improved flier shown in'connection with the bobbin on whi'ch'it operates;

Fig. 2 is an enlarged, vertical-sectional view ofthe upper portion of the flier, showing the controlling means for the presser;

Fig. 3 is' a'plan view of the same in part section on the line X-X of Fig. 2;

Fig. 1 is a view similar to Fig. 2, showin a modification in the structure of the presser-rod and its mounting; and

Fig. 51s a detail view arrangement of the connection between the presser and its controlling-arm.

Referring first to 1, S designates the vertical spindle for rotating the flier F supported on its upper end, and A is the bolster which carries the bobbin on which the roving is wound. v The" bolster Ais provided with atubular sleeve 2 surrounding the spin- (11 S andfitted to the bore of the wooden bobbin B which rotates thereon in coaxial relation with the spindle At the lower endot the sleeve 2 is a rotatable bushing 3 provided with 'a bevel gear 4 through which it is'conne'ctedfto be driven from the operat ing mechanism of the machine. At the upper end of the bushing 3 is a flange or collar showing a modified 5 having a lug'or spur 6 adapted to engage notches 6 in the base ofthe bobbin B to connect the latter rotatively' therewith. The bolster is connected to the rail of the rovingirame by an arm 7, whereby it may be reciprocatedup and down to impart the rising and falling motion to the bobbin in relation to the flier; these connections not being herein illustrated or described in detail as they form no part of the present invention, but are o'f usual construction as Well known to those versed in the art.

Referring now particularly to Figs. 2 and 8, the upper end of the spindle S is reduced in diameter at 9 and'fitted to itsperiphery' is a tubular sleeve 10 which serves as the mounting or support for the flier F. EX- tending across the interior of the sleeve 10 is a pin 11 adapted to engage a cross-slot 12 in the top of the spindle S, whereby toltey the flier F rotatively therewith while allowing for its removal therefrom for placing the bobbin on, or doilingit from the bolster A. The sleeve 10 is provided at its upper end with radial arms 14-15 which are bordered by upstanding, marginal flanges 16, forming a shallow boX or casing which takes somewhat the shape of a semaphore arm. The sides of the right-hand arm 15 taper inwardly, as shown in Fig. 3, and terminate in a tubular sleeve 17 which projects downwardly to form a bearing or mounting for the upper end of the vertical presser-rod or shaft 18, see Figs. 1 and 2. As shownin Fig; 2, the rod 18 has a cylindrical hub or head 19 at its upper end formed with an annular groove 20 at the bottom and a beveled edge .Zl on its top. The head 19 is adapted to fit within the bearing-sleeve 17 with series of antiiriction balls 2'2-23at its ends. The groove 20 at the bottom of the head 19 forms a race for the lower set of balls 23 which bear against a concaved shoulder" at the bottom of the sleeve 17 while the upper balls 22 bear against the beveled edge 21' of the head 19 and are held in place by a cap 24: screwed into the top of the sleeve. The cap 24. is adjusted in place to permit a free rolling motion of the balls 22-2S as the head 19 rotates in its bearing while preventing axial movement of the rod 18. 'The rod 18 extends downwardly from its bearing in parallel, spaced relation with the bolster sleeve 2 and is preferably reduced in thickness or cut away on one side to lighten its structure. As illustrated by the dotted lines in Fig. 3, the rod 18 is made half-round in cross section and is hollowed or concaved along its side to provide a groove .or chain nel 30 for the strand R to draw through. At the top and bottom of the rod 18 are hook-like guides 31-31 for retaining the strand in place; while at its lower end the rod is bent at right-angles to form the presser-arm 32. At its outer end the arm 32 is flattened to form the presser-foot 33 which bears against the bobbin as the strand of roving is wound thereon. In the center of the pressenfoot 33 is a guide-eye 34 having a restricted opening on its side through which the strand is entered. One side of the head 19 of the presser-rod 18 is cut or milled with a series of longitudinal grooves forming gear-teeth 35, see Fig. 3, which are adapted to mesh with a toothed sector 36 on the end of counterweight-lever or presser-controller 37.

The presser-controller or weight-lever 37 is arranged in horizontal position within the casing C with its toothed end inserted through an opening 39 on the side of the bearingsleeve 17, see Fig. 2. On the opposite end of the lever 37 is a disk-like weight 40, and intermediate its extremities is an enlarged hub 41 having a relatively large bore 42.

Fitted to the top of the casing O is a fiat cover O formed with an upstanding tubular thimble 43 arranged concentric with and forming an extension of the sleeve 10 which supports the flier on the spindle S. The thimble 4-3 is provided with an opening 44 in its top and an aperture 45 on its side through which the strand of roving R is led in the manner illustrated in Fig. 1. On the side of the arm 15 is a pin 46 across which the strand R draws as it leads to the presserrod 18, the strand being guided along the latter in the manner as later explained. The cover O is fastened in place on the top of the casing O by means of screws 47 and on its under side is an enlarged hub 48 disposed eccentric to the axis of the spindle S. Referring to Fig. 2, the hub 48 enters the bore 42 in the counterweight-lever 37 and serves as a bearing therefor to pivot the lever on an axis eccentric to the axis of revolution of the flier F. Normally, as the flier F rotates about the axis of the spindle S, centrifugal force will tend to maintain the weight-arm 37 in mean position, as illustrated in F 3. The lever 37 is swung out of this position by the turning of the rod 18 in its bearing under the influence of the presser-i oot 33 as the latter is forced radially outward from the axis of the bobbin B by the growth of the winding building up thereon. The method of operation of the complete apparatus is as next explained:

In preparing the machine for operation the flier F is lifted off from the spindle S and a wooden bobbin or shell B slipped onto the bolster tube 2 with one of the notches Z) at its base engaged with the driving lug 6. The flier F is then replaced on the spindle S with its crosspin l1 engaging the slot 12 in the end of the spindle to provide a driving-connection therebetween. The strand of roving li represented by dotand-dash lines in Fig. 1, is led down from the drawing-rolls through the opening 44 in the thimble 43 on the cover O, thence out through the aperture 45 on its side, and after being given a partial wrap therearound is carried across the guide-pin 46 to the presser-rod 18. From the pin 46 the strand R passes over the upper guide-hook 31, thence through the channel 30 in the rod 18 and under the lower hook 31 to the presser-i oot As the strand leaves the guide 31 it is wrapped around the arm 32, then led through the guide-eye 34 and its end secured to the bobbin B by giving it a few turns therearound. The roving-frame is now started to operate to rotate the spindle S and bolstersleeve 2, the latter being driven at a faster rate than the spindle and at a gradually accelerated speed in the manner as well known to those versed in the art. The bolster-sleeve 2 will thus be rotated in advance of the flier F and as the bolster A rises and falls in relation to the presser 33 the latter is caused to traverse the roving longitudinally of the bobbin B to deposit it in layers thereon. As the strand R leads down through the thimble 43 and therearound to the rod 18, thence around the arm 32 and through the guide-eye 34 in the presser 33, a slight resistance is applied to its draft to provide the required tension. The turning of the bobbin in advance of the flier gives the twist to the roving it winds thereon, and as the bobbin increases in diameter its rotation is accelerated to preserve a constant ratio between its peripheral speed and the speed of the flier.

Referring to Fig. 3 of the drawings, at the start of the winding operation the presserfoot 33 bears against the barrel of the bobbin B as represented by full lines in this view. Now, as the successive layers of roving are laid in place the presser will be gradually swung outward from the axis of the bobbin until, when the winding reaches its full diameter, it will have been carried into the position indicated by dash lines in Fig. 3. This swinging movement of the presser arm 32 acts through the rod or shaft 13 to turn the toothed head 19 in its bearing 17, and the motion of the latter is communicated through the gear-sector 36 to swing the counterweight-lever 37 toward the position shown by dotted lines in Fig. 3. It has before been explained that during the rotation of the flier F the action of centrifugal force tends to maintain the weighted lever 37 in mean positon, due to the fact that its axis is offset or eccentrically disposed in re lation to the axis of revolution to the flier. Consequently, the displacement or swingingmoveinent of the weight-clever 37 is represser-foot 33 constantly bearing on the periphery of the mass of roving as it builds up on the bobbin B to provide the required pressure thereagainst. It is also to be notedthat since the displacement of the counterweight-lever 37 is so slight the resistance or drag. which it applies to the presser remains substantially constant throughout the full movement of the latter. That is to say, as the presser-foot 33 moves outwardly from the axis of the bobbin its pressure on the roving is not increased to any appreciable extent, and therefore a more constant and uniform tension is applied to the strand from start to finish of the winding on process.

Fig. 5 illustrates a modification in the arrangement for connecting the presser-rod or shaft 18 to swing the counterweight-lever 37. In this embodiment of the device the head 19 of the shaft or rod 18 is provided with a single tooth or projection which engages a notch or opening 51 in the end of the arm 37. This construction is somewhat siinpler than the arrangement shown in Figs. 1 and 2 and obviates the necessity of cutting gear teeth on the head 19. The method of operation of this form of the mechanism is substantially the same, however, as that previously described and it is obvious that other modifications could be made in the method of interconnecting the parts without departing from the principle of their operation.

Fig. 4 shows another arrangement of the presser-rod and its mounting as modified from the construction shown in Fig. 2. In this embodiment the presser-ro'd or shaft 52 is made tubular and provided with a flange 53 at the lower end of its enlarged hub or' bearing-head 54L. Fitted to the bore of the bearing-sleeve 17 is a bushing 55,

preferably constructed of impregnated wood 'head to hold it in place.

to provide what is known in the mechanical arts as an oilless bearing. The head 54 of the rod 52 is fitted to turn in the bore of the bushing 55 with its flange 53 abutting the lower end thereof, and a pin 56 driven through the side of the bearing-sleeve 17 engages with a peripheral groove 57 in the Cut through the side of the bearing 17 and bushing 55 is a vertical slot 58 which registers with a corresponding slot 59 in the head 54. The slot 59 is continued downwardly through the side of the tubular rod 52 and is twisted spirally therearound as shown 60. Mounted on the lower end of the rod 52' is the 'presse'r-arm 6'1 terminating in the presserfoot 62 formed with a gu idee'ye 63. The object of this arrangement is to provide for easier threading of the flier in leading the strand of roving through its guideways. lVith this construction the strand is led from the thimble 43 on the cover' C to the outside of the bearing sleeve17 and thendrawn down through the slots 58 59 to enter it in the bore of the head 54:. By giving the strand a wrap around the rod 52 it can then be entered through the spiral slot into'the longitudinal bore of the rod 52.

From the bottom of the rod 52 the strand R is' led around the press'er-arm '61 and thence through the guide-eye 63 in the press er-foot 62. It will thus be seen that the rod 58 maybe threaded with the strand R with a few simple movements of the hand,

tending to make for greater ease andconvenience in preparing the flier for ation. My improved device provldes' an extreme- ,ly simple and eflicient apparatus having For this reason a more uniform twist is-applied to the strand the bobbin buildsup with a more perfect formation,- whereby the roving delivers more freely and evenly in unwinding, resulting in a more even and level yarn in the finished product,

Various modifications other than those herein shown might be made in the structure and arrangement of the parts of the device without departing from the spirit or scope of the invention; therefore, without limiting myself to the precise embodiment illustrated, what I claim is: I 1. In a flier for roving-frames or like textile apparatus, the combinationwith a member rotatable about the axis of therovingbobbin, of a p resser hinged to said member on an axis parallel with and at a distance apart from the axis of the bobbin, a weighted lever pivoted on a separate axis from that of the presser and eccentricallydisposed with relation to the axis ofthe bobbin, and means connecting the presser to the weighted lever to swing the latter against the resistance applied thereto under the ac tion of centrifugal force. 1

2. In a flier for roving-frames or like textile apparatus, the combination with a member rotatable about the axis ofthe roving-bobbin, of a presser hinged tomsaid' member to adapt it to bear against the rovoperaing as it winds onto the bobbin, a counterweight lever pivoted on a separate axis from that of the presser and disposed in eccentric relation to the axis of the bobbin,

and gearing connecting the presser with the counterweight-lever to move the latter as the presser swings outwardly with the growth in the winding.

3; In a flier for roving-frames or like textile apparatus, the combination with a supporting-member rotatable on the axis of the roving bobbin, of a presser-rod journaled in a bearing on said member, a presser on said rod adapted to bear against the roving as it winds onto the bobbin, a weighted lever pivoted on the supportingmember on an axis separate from that of the presser-rod and disposed in eccentric relation to the axis of the bobbin, and means on the presser-rod engaging the weighted lever to swing the latter against the action of centrifugal force as the presser recedes from the axis of the bobbin with the growth in the winding.

' 4:. In a flier forroving-frames or like textile apparatus, the combination with a member rotatable on the axis of the rovingbobbin, of a presser pivoted on said member to adapt it. to swing outwardly from the axis of the bobbin as the roving is wound thereon, a counterweight-lever pivoted on the member on a separate axis from that of the presser and disposed in eccentric relation to the axis of the bobbin, and meansv intermediate the presser and counterweight lever for imparting movement to the latter against the action of centrifugal force whereby to apply a constant resistance to the movement of the presser throughout the building of the bobbin.

5. In a flier for roving-frames or like apparatus, the combination with the bolster for supporting and rotating the bobbin, of a radial-arm rotatable about the axis of the bobbin independently thereof, a bearing at the end of said arm, a rod journaled in said bearing in parallel spaced relation with the axis of the bobbin, a presser carried by said rod to adapt it to bear against the bobbin and to swing away from its axis during the winding, a weighted lever pivoted on the arm in eccentric relation to its axis of rotation, and means connecting the lever to be swung from the turning of the presserrod in its bearing as the presser recedes from the axis of the bobbin with the growth in the winding.

6. In a flier for roving-frames, the combination with a rotating spindle, of a member supported on said spindle and rotated thereby, a rod journaled in a bearing on said member and extending in parallel relation with the spindle, a presser at the lower end of the rod adapted to bear against the bobbin being wound, a counterweight-lever pivoted on a separate axis from that of the presser-rod and disposed eccentric to the axis of the spindle, and means connecting the presser-rod to the counterweight-lever to swing the latter against the action of centrifugal force as the presser recedes from the axis of the bobbin with the growth of Q the winding.

7. In a flier for roving-frames, the combination with a rotatable-member formed with a radial arm having a bearing at its end, of a rod journaled in said bearing in parallel relation to the axis of rotation of the -a rod iournaled in said bearing and formed with gear teeth on its side, a presser carried by said rod to adapt it to bear against the bobbin being wound, and a weighted lever pivoted on the arm-member in eccentric relation to its axis of rotation, said lever formed with gear teeth at its end engaging the teeth on the presser-rod to adapt it to be moved therefrom against the action of centrifugal force.

9. In a flier for roving-frames, the combination with a member having a radial arm formed witlra bearing at its end and a hub at its center disposed in eccentric relation to its axis of rotation, of a rod journaled in the end-bearing of the arm, a presser carried by said rod to adapt it to bear against the bobbin being wound, a weighted lever pivoted on the eccentric hub of the arm, and means connecting the presser-rod and weighted lever to swing the latter against the action of centrifugal force as the flier rotates about the bobbin.

10. In a flier for roving-frames, the combination with a rotatable spindle, of a member fitted to the end of the spindle and formed with opposite radial arms having marginal flanges to provide a shallow casing, a bearing at the end of one of the arms, a rod journaled in said bearing, a presser on the end of the rod adapted to bear against the bobbin being wound, a weighted lever pivoted within the casing on an offset hub disposed eccentric to the axis of the spindle, means connecting the rod with the weighted lever to adapt the latter to be moved from the turning movement of the rod under the action of the presser, and a cover fastened to the top of the casing to hold the lever in place and protect the parts from dust and int.

11. In a flier for roving-frames, the com-

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