US2287013A - Builder motion - Google Patents

Description

June 23, 1942. E. J. ABBOTT BUILDER MOTION Filed Aug. 1, 1940 3 Sheets-Sheet 1 June 23, ABBOTT BUILDER MOTiON Filed Aug; 1, 1940 3 Sheets-Sheet 2 June 23, E J ABBOTT BUILDER MOTION Filed Aug 1, 1940 3 Sheets-Sheet 3 dzdardcf ,5 ,oZZ

Patented June 23, 1942 UNITED STATES PAT ENT OFFICE BUILDER MOTION Edward J. Abbott, Wilton, N. 'H. assignor to Abbott Machine Company, Wilton, N. H., a corporation of New Hampshire Application August 1, 1940, Serial No. 349,107 9 Claims. (01. 242-433) This invention relates to textile apparatus such as spinning or twisting or winding machines having traverse means and a builder motion mechanism therefor. The principal object of the invention is to provide a machine of this type in which the yarn is simultaneously guided onto the rotating receiving packages 'by means of a yarn guide which may if desired include ring travelers, fliers, or caps which surround or travel around the receiving packages, but modified so as to produce a wound package having selfsustaining or cross-wound end portions, avoiding the necessity for flanges on the ends of the package core, permitting the package to be wound on a core in the form of a simple tube, and to contain a maximum quantity of the twisted yarn within the confines of the space available between the package core and the surrounding or encircling yarn guide. In machines of this type, it would in general be undesirable tomove the transversing elements, such for-example as the ring rail with its rings and travelers or the rotating packages, continuously up and down with quick strokes equal to the length of the package so as to produce the typical crosswound cheese, since this would involve a relatively rapid reciprocation of a large weight through a relatively long stroke, and in practice the typical cross-wound cheese'is not produced on spinning and twisting frames of this type.

The difficulty of producing on a machine of this type a package having self-sustaining end faces can however be overcome through the present invention by employing the relatively.,, rapid quick-traverse motion only at the upper or lower edge portions of'the package (preferably at both) and distributing the yarn in the central portion of the package with a considerably smaller rate of traverse.

Further objects of invention are to provide mechanism for imparting to the traverse mechanism of a winding, spinning or twisting frame a relatively quick-traversing movement through a short distance at one end of the package, a rela-,

tively slow-traversing movement during the time the yarn is winding onto the main body portion of the package, then a' relatively quick-traversing motion at the other end of the package, and a relatively slow-traversing movement while the yarn is winding onto the main body portion of the package, and so on, until .the package is full.

Although the invention'is illustrated as applied to a spinning or twisting machine, certain aspects of the invention are of general applicability to builder motion mechanism for textile machines which wind packages without spinning or twisting the winding thread.

Other objects of this invention and features of utility and advantage will be apparent from this a larger pulley 3| by a belt 32.

specification and its drawings wherein the invention is explained by way of example.

In the drawings:

Fig. 1 is a fragmentary side elevation of a portionof arin'g twisting or spinning frame .embody'ingthe invention, a portion of the row of twisting spindles being omitted to show the builder motion for the ring rail;

Fig. 2 is .a left end elevation of the machine of Fig. 1, with portions of the frame broken away;

Fig. 3 isa fragmentary sideelevation of a ,portion of a cap twisting or spinning frame to which the present invention is applicable through use of the builder motion of Figs. 1 and 2; and

Fig. 4 is a fragmentary side elevation of a portion of a flier twisting or spinning frame to which the present invention is applicable through the use of the builder motion .of Figs. 1 and 2.

Referring to Figs. 1 and 2, showing amachine of the ring type, the yarn being spun or twisted runs as usual from the drafting or feed rolls to a pot-eye 18 located over the typical spindle 20. The spindle 2|] is mounted as usual in a bolster 2| (Fig. 1) and rotated by a whorl 22. A cylindrical core 19 .of tubular form is driven by the spindle 20.

A ring rail 23 carrie a series of rings24 surrounding the receiving package, simultaneously twisting and guiding the yarn in a circular path around and onto the receiving package P by means of the usual ring travelers 25. The ring rail 23 which in this embodiment is a traversing element is mounted ,for vertical movement and its vertical position is controlled by a lifter rod 26 connected by a chain 21 to a horizontal slidable .bar 28.

The mechanism for imparting the desired reciprocation to the ring rail 23 through its .operating connections will now be described.

The main shaft of the machine is indicated at 29 in Fig. 2 and carries a pulley 30 which drives On the shaft of pulley 3! there is a worm 33 serving todrive .a worm wheel 34, fast on a shaft 35. At the right end of this shaft 35 in Fig. 2 the shaft carries a cam wheel 35 which runs continuously and performs the general function of impart ng the relatively slow traversing motion to the ring rail during the winding of the yarn onto the main body portion of the package.

A cam follower 31 is mounted on a lever 38 connected at its upper end by a connecting rod 39 to the reciprocable slide 28 which actuates the lifter rod 26. The total motion imparted to the lifter rod by this main cam 36 is such as will move the ring rail from a position approximately one-half inch from the top of the winding-package to approximately one-half inch from the bottom.

With the cam 36 rotatingslowly and continuously in the direction of the arrow m, the portion 42 of the cam represents a constant lifting of the ring rail from a position approximately one inch from the bottom of the winding package to a position approximately one inch from the top of the winding package. The portion 43 of the cam which next becomes operative involves initially a rapid movement of the ring rail approximately one-half inch upward to a position approximately one-half inch from the top of the winding package, then a dwell through approximately one-half the time taken to traverse through the main body portion of the package, followed by a rapid lowering of the ring rail to a position approximately one inch below the top of the winding package.

The portion 44 of the cam represents a movement of the ring rail opposite and equal to that caused by the portion 42, carrying the ring rail down to a position approximately one inch above the bottom of the package. The portion 45 of the cam represents an action corresponding to that which was effected by the portion 43, in this case a rapid lowering of the ring rail from a position approximately one inch above the bottom of the package down to a position approximately one-half inch above the bottom of the package, followed by a dwell and then a rapid return of the ring rail to a position approximately one inch above the bottom of the package.

The rate of traverse during the functioning of the main portions 42 and 44 of the cam is such as to move the winding yarn slowly along the package, preferably at a rate such that each turn of the winding yarn is close beside the next preceding turn, and at approximately right angles to the core, in the manner in which yarn is normally spun or twisted onto flanged spools.

The positions of the ring rail approximately one inch below the top of the package and one inch above the bottom of the package represent division points at which the winding yarn is set to traversing at a relatively rapid rate of traverse through a stroke of approximately one inch to wind self-sustaining end portions of the package. The ring rail is kept traversing with this short and rapid movement through a time represented by approximately to winding turns of the yarn on the package, whereupon the dwell represented by the portion 43 or the portion 45 of the cam 36 ends, and the slow traversing is commenced again.

For giving the intermittent quick traversing motion, there is provided a second worm 48 driven by a pulley 49 and belt 50 from a pulley 5| on the main shaft. This worm 48 turns a worm wheel 52 which acts through a friction clutch indicated generally at 53 to urge a shaft 54 to turn in a clockwise direction as indicated in Fig. 1.

The lower end of the lever 38 is pivotally mounted in a horizontal slidable block 56, connected by a connecting rod 51 to a crank pin 58 rotated by the shaft 54. The tendency of the shaft 54, crank pin 58, and its connection to the lever 38 is thus to rock the lower end of this lever about the cam follower 31 as a pivot, at a relatively rapid rate corresponding to the desired quick-traversing motion of the ring rail at the top and bottom one inch portions of the winding package.

Such quick traversing motion of the crank 38 and ring rail is however restrained except at such times as the slow traverse actuating cam is in one of its dwells 43 or 45. This i accomplished by means of a latch wheel 60 splined on the shaft 54 and having a shoulder Kill engageable bya pivoted latch 6 I, the latch wheel 60 most conveniently being, as shown, the driven member of the friction clutch 53.

The latch 6| which is pivoted at 62 is in the form of a bell crank having at its left end in Fig. 1 a cam follower 63 which rides on the surface of a cam 54 on the shaft 35. The shape of this cam 64 is such that as soon as the cam follower 31 has entered into one of the dwells in the sections 43 or 45 of the cam 36, the left end of the latch 6| will be depressed and the right end disengaged from the latch wheel 63. Thus during the time that the relatively slow traverse motion controlled by cam 36, is idle, the shaft 54 is free to be rotated through the friction clutch 53 and to impart through the crank pin 58 a rapid oscillating movement to the lever 38, and bring about the desired quick-traversing movement of the ring rail at an end of the winding package. This quick-traversing persists through the winding on of about 20 to 30 turns of yarn in the end one inch portion of the package. The cam follower 31 then leaves the dwell in cam 36 and is rapidly brought to a position corresponding to the ring rail being either one inch below the top or one inch above the bottom of the package, at which time the latch 6| stops further rotation of the latch wheel 60 and retains the latch wheel at the mid-position of the stroke of the crank pin 58. The quick traverse is thus suspended while the portion 42 or 44 of the cam 36 slowly actuates the cam follower 31 during the winding of the layer of yarn on the main body portion of the package.

It will be apparent from the description of the traversing of the yarn that the package P will have self-sustaining end portions, indicated at P and P which will have their outer end faces at approximately right angles to the axis of the package, thus using all of the available space on which yarn can be wound within the spinning or twisting ring. The middle body portion P wound with a relatively slow traverse, has its portion of yarn closely wound with the maximum compactness. The package thus holds substantially more yarn than could be wound either on a tapered package of equal length or on a spool of equal outside length whose heads could be passed through the ring.

Obviously if it is desired to employ a core having one head, for example at the top of the winding package, the cam 36 can be re-proportioned to omit the dwell in the slow traversing motion at the end of the package where the core has a head, and the cam 64 can be re-proportioned so as not to allow the quick-traversing motion to function at that end of the package.

The lifter rod 26 of Figs. 1 and 2, operated by the builder motion of those figures, is shown in Fig. 3 as connected to a lifter plate or rail 23 of a cap-spinning or twisting frame and in Fig. 4 as connected to a lifter plate or rail 23 of a flier spinning or twisting frame.

In Fig. 3, a stationary spindle 10 extends through the whorl 22 and the tubular package core 19 supports a cap II of conventional form, the whorl 22 which is arranged to drive the core 19 being mounted on ball bearings 13 on the rail 23*, so that the traversing motion of the rail 23 produces the same construction of package P as in the machine of Figs. 1 and 2.

In Fig. 4, a spindle driven by a whorl 22 carries a flier 82 of conventional construction at its upper end. The tubular package core i9 is freely mounted on the spindle 80 and rotated at a relatively high speed by the flier 82 through the intermediary of the winding-on yarn. The traversing motion of the rail 23' again produces the same construction of package P as in the machine of Figs. 1 and 2.

In each of the several illustrated forms of the invention, the package P is rotated at a relatively high speed so as to twist the yarn, the angular velocity of the package being either slightly faster than the yarn ballooning about it as in the machines of Figs. 1, 2 and 3, or slightly lower as in the machine of Fig. 4 so as to wind the yarn on simultaneously with the twisting. In each case there is a yarn guide, the follower 25 of Figs. 1 and 2, the cap H of Fig. 3 or the flier 82 of Fig. 4, defining an available cylindrical space for the growing package. The invention enables the maximum capacity of the machine to be attained by providing for winding a cylindrical package of maximum diameter within this available space, without the necessity for spool-heads.

I claim:

1. Textile apparatus having therein traverse means, and builder motion mechanism therefor comprising a member connected to operate the traverse means and adapted to be oscillated, rotary cam means acting on said member to impart a relatively slow-oscillating movement thereto corresponding to a slow traverse, means acting intermittenly on said member to impart a relatively rapid movement thereto at an end of stroke of its oscillating movement, and timing means including a part rotating with said rotary cam means for stopping and starting said intermittently acting means.

2. Textile apparatus having therein traverse means, and builder motion mechanism therefor comprising a member connected to operate the traverse means and adapted to be oscillated, rotary cam means acting on said member to impart a relatively slow-oscillating movement thereto corresponding to a slow traverse, means acting intermittently on said member to impart a relatively rapid movement thereto at an end of stroke of its oscillating movement, driving means for constantly urging said intermittently acting means to operate, latch means for preventing the intermittently acting means from operating, and a second cam rotating with the first cam for con trolling said latch.

3. Textile apparatus having therein traverse means, and builder motion mechanism therefor comprising continually operating means for imparting a slow-traversing motion to the traverse means, supplemental actuating means for imparting a quick-traverse motion of relatively short stroke to the traverse means, driving means continually urging said supplemental actuating means to operate, and means for latching the supplemental actuating means against operation, and means for unlatching the supplemental actuating means at the end of a stroke of said slow-traversing motion.

4. Textile apparatus having therein a traversing member and builder motion mechanism therefor comprising a continually operating cam, connections for operating the traversing member from the cam, a cam shaft for driving the cam, actuating means for intermittently imparting a short-stroke supplemental quick motion to said connections, means for latching said actuating means, and a second cam on said cam shaft for unlatching said actuating means.

5. Textile apparatus having therein a traversing member, and builder motion mechanism therefor comprising a continuously operating cam, connections including a lever adapted to be oscillated by the cam for operating the traversing member from the cam, a cam shaft for driving the cam, a crank and a connection therefrom to the lever, means including a friction clutch for driving the crank, a latch wheel and latch for restraining the crank from operating, and a second cam on said cam shaft for periodically releasing the latch and permitting a plurality of strokes of operation of the crank.

6. Textile apparatus having therein a traversing member, and builder motion mechanism therefor comprising a cam, means for operating the traversing member from the cam, the cam having two portions respectively representing gradual movement of the traversing member upwardly and downwardly and having dwell portions between these two portions, and supplemental actuating mechanism, operative during the time the dwells of the cam are in effect to cause relatively short quick movement of the traversing member.

'7. Textile apparatus having therein a traversing member, and builder motion mechanism therefor comprising a cam, means for operating the traversing member from the cam, the cam having two portions respectively representing gradual movement of the traversing member upwardly and downwardly and having dwell portions between these two portions, the dwell portions being at such throws of the cam as represent positions of the traverse slightly below the tops and slightly above the bottoms of the spinning or twisting packages, and supplemental actuating mechanism, operative during the time the dwells of the cam are in effect to cause relatively short quick movements of the traversing member at the tops and bottoms of the packages.

8. Textile apparatus having therein a traversing member, and builder motion mechanism therefor comprising a cam, means for operating the traversing member from the cam, the cam having two portions respectively rep-resenting gradual movement of the traversing member upwardly and downwardly and having dwell portions between these two portions, supplemental actuating mechanism for causing relatively short quick movements of the traversing member, means for restraining said supplemental actuating mechanism from operating, and means for releasing said restraining means and permitting operation of the supplemental actuating mechanism during the time the dwells of said cam are in effect.

9. Textile apparatus having traverse means, and builder motion mechanism therefor comprising a member connected to operate the traverse means and adapted to be oscillated, rotary cam means acting on said member to impart a relatively slow-oscillating movement thereto corresponding to a slow traverse, means acting intermittently on said member to impart a relatively rapid movement thereto at an end of stroke of its oscillating movement, and timing means including a part rotating with said rotary cam means for starting said intermittently acting means.

EDWARD J. ABBOTT.

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