US2385888A - Builder motion - Google Patents

Description

.J. J. SIPPEL BUILDER MOTION Oct. 2, 1945.

Filed June 24, 1945 4 Sheets-Sheet 1' n J 26$ s Oct. 2, 1945.

J. J. S|PPEL BUILDER MOTION Filed June 24, 1943 4 Sheets-Sheet 2 J. J. SIPPEL 7 2,385,888

BUILDER MOTION Oct. 2, 1945.

Filed June 24, 1943 4 Sheets-Sheet a 1 J. J. SIPPEL BUILDER MOTION Oct; 2, 1945..

Filed June 24,1943 4 She ets-Sheet 4 Patented Oct. 2, 1945 BUILDER MOTION John J. Sippel, Upper Darby, Pa., assignor to H. W. Butterworth & Sons Company, Philadelphia, Pa., a corporation of Pennsylvania Application June 24, 1943, Serial No. 492,141

4 Claims.

This invention relates to builder motionsfor spinning machines and more particularly to builders motions for producing tapered packages.

An importantobject of the invention is the provision of an extremely simple and durable control mechanism for varying the length of the stroke and tapering the package, which mechanism is of such character that it maybe readily utilized in multiple in spinning machines having a great number of spindles.

A further and more specific object of the invention is the provision of an apparatus of this character wherein a reciprooable member has imparted thereto a uniform motion and wherein means are provided for modifying this motion as to itselfective length comprising a single movable part operatively engaging a lever carried by the reciprocable member and continuously shifting during the building period to vary the throw of the lever with relation to that of the reciprocable member thereby Varying the length of the stroke.

Another object of the invention is to provide a construction of this character in which the length of the stroke at the beginning of the build.- ing motion may be very readily regulated, thus insuring the production of uniform packages.

These and other objects I attain by the construction shown in the accompanying drawings wherein, for the purpose of illustration, I have shown a preferred embodiment of my invention and wherein:

Figure 1 is a fragmentary transverse sectional viewrthrough a spinning machine embodying a builder motion constructed in accordance with my invention;

Figure 2 is a side elevation thereof;

Figure 3 is a section on line 3--3 of Figure 2 Figure 4 is a section on line 4-4 of Figure 3;

Figure 5 is a section on line 5-5 of Figure 2; and

Figure 6 is a semi-diagrammatic view illustrating the drive employed.

Referring now more particularly to the drawings, numeral It! generally designates a machine frame on which is suitably supported a builder drive generally designated at H. The drive ll comprise a casing having arranged therein a transversely reciprocable bar l2 and a, transversely extending rotatable shaft l3 which is connected to the bar to reciprocate the same by a suitable cam and roller connection generally designated at M. The reciprocable drive of bar 12 may be of any suitable type which will impart a uniform reciprocation to the bar and that herein shown, while preferred, is purely illustrative. Shaft I3 is at present illustrated as being driven by a longitudinally extending shaft l5 extending through the casing and driven from the motor it.

Mounted upon the bar I2 for oscillation upon an axis transverse to the bar is a bell crank lever l1, one arm ofwhich projects through a slot 1 8 in the upper wall of thecasing and is provided with a fork i3 engaging a block 20 carried by a transverse-link 2| forming the lower end of a parallel motion mechanism comprising a center oscillatory link 22 and side links 23. Side links 23 are secured to rock-shafts 24 at opposite sides of the machine, such rock-shafts bearing arms 25 through which a thread guide bar 26 is transversely oscillated to shift thread guides 21 with relation vto the packages P which are being formed. The packages P are mounted upon opposite ends of transverse shafts 28, one of which is herein shown, these shafts being driven as at 29 by a longitudinal shaft 30 which may be driven from any suitable source.

Extending through the wall of the casing as at 3| adjacent the bar I2 is a stub shaft 32, the inner end of which bears a guide 33 in which is engaged a roller 34 carried by the second arm 35 of bell crank H. The outer end of this stubshaft has a crank arm 36, the free end of which is forked and engages a block 31 mounted on a nut 38 which engages a vertically extending worm 39 forming the upper end of a shaft mounted for rotation in suitable bearings 40 supported by the casing of the unit I I. This shaft may be reversely rotated from a longitudinally extending shaft 4|, common to all units of the machine. Upon the vertically extending shaft is splined a clutch unit 42 through which either of gears 43 Or 44 may be connected to the vertically extending shaft. The clutch element which engages the upper gear is a positive clutch element as indicated at 45 Whereas gear 44 is connected through a friction type clutch as' at 46.

These clutches may be selectively engaged through operation of a hand controlled shaft 41 likewise extending longitudinally of the machine and common to all units. This shaft through gearing 43 rotates a vertical worm 49 to elevate or lower a cage 50. Pivoted as at 5! upon bracket 52 is a lever 53 having at one end a fork engaging the clutch unit 42 and at its opposite end an eye 54 surrounding worm 49 and engaged at its upper and lower faces by springs 55 extending between the eye and the ends of the cage. The spring mounting will permit variation in relieving movements imparted to the arms of various units so that complete engagement of the i ings'for the screw 39.

clutches of such units may be properly effected even though a variation in movements is essential,

' as for example, when the positive clutch fails to properly engage initially or when through variation in wear of the friction clutches any variation in movement is necessary. Longitudinally extending shaft, 4| is driven from motor l6 and drives gear 44 at a relatively high speed as through stub shafts 56. The gears 43 are driven at low speed by means of a take-off drive from shaft 4| indicated at 51 and including a reduc tion gearing generally designated at 58. Rotation of screw 39 is limited and accordingly movement of the arm 36 is limited under influenceof V the friction drive through engagement of the arm I 36 with an adjustable'stop 59'which maybe carried byrthe same brackets 60 mounting the bear- It will be understood that when the arm 36 comes into engagement with this stopthe rotation of the screw will be checked through slipping at the friction clutch 46, this operation constituting the reset mechanism establishing the longest stroke of the builder motion. I

In operation of the machine it may be assumed that the parts are in the solid line position of Figure 3 and that the building motion of packages P has just started. At this time, the positive clutch 45 will be engaged and screw 39 will rotate at a very slow speed thereby shifting arm 36 downwardly and rocking shaft 32 and guide 33. It will be noted from Figure 3 that at the beginning of this builder motion the inclination of the guide will, through its engagement with bell crank ill, cause this bell crank to shift with reciprocation of bar l2 to provide an accentuated motion of transverse link 2| and accordingly of thread guide bar 26. When the arm 36 has reached an intermediate position, such as that indicated at B, Figure 5, the groove of guide 33 will parallel bar 12 and accordingly the link 2| will be given a motion equal to that of the bar. As the'oscillation of the guide continues beyond this central 'portion the motion imparted to the bell crank will be the reverse of thatimp'arted to the, bar With the result that the stroke will be, steadily shortened until the minimum stroke position indicated at C, Figure 3, is reached, At this time, the packages may be doffed and the position 'of themechanism restricted to again begin the building motion.

It will, be obvious that the above mechanism comprises, an extremely simple and readily regulated means for controlling the building of tapered'packages. It will be also obvious that the construction illustrated is capable of considerable modification without departing from the spirit of my invention.

Iclaim: a v

,1. In a builder motion, a reciprocable member, means to impart a substantially uniform reciprocation to said member, a bell crank lever mounted on the member and having one arm thereof extending inthe general direction of reciprocation of the member and the other arm projecting'outwardly therefrom, a thread guide driven by the last-named arm, an inclined guide with which the first-named arm is operatively engaged whereby the lever is oscillated in timed relation to the reciprocation of the member, means to vary the inclination of the guide, comprising a crank connected to said inclined guide, a rotatable worm operatively engaged with the crank, and means to rotate said worm in opposite directions, the means to rotate the worm in one direction including a friction clutch.

2. In a builder motion, a reciprocable member, means to impart a substantially uniform reciprocation to said member, a bell crank lever mounted on the member and having one arm thereof extending in the generaldirection of reciprocation of the member and the other arm projecting outwardly therefrom, a thread guide driven by the last-named arm, an inclined guide with which the first-named arm is operatively engaged whereby the lever is oscillated in timed relation to the reciprocation of the member, means to continually vary the inclination of the guide'from a position Where the oscillation of the bell 'crank causes said other arm to move in a direction supplementing the reciprocation of said member to a position where the movements of the said other arm and member are opposed, comprisin a crank connected to said inclined guide, a rotatable worm operatively engaged with the crank, andmeans to rotate said Worm in opposite directions, the means to rotate the worm in one direction including a friction clutch,

3. In a builder motion, a reciprocable member,

' means to reciprocate said member, a transverse arm mounted on the member for oscillation about a pivot transverse to the member, a thread guide cluding an inclined guide operatively engaged with the arm,'means constantly varying the inclination of said guide to thereby vary the extent of oscillation of the arm and the extent of movement of the thread guide, comprising" a crank connected to said inclined guide, a rotatable Worm, a nut on said worm with which said crank is engaged, and means to rotate said worm in opposite directions, the means to rotate the worm in one direction including a friction clutch.

4. In a builder motion,'a reciprocable member, means to impart a substantially uniform reciprocation to said member, a bell crank lever mounted on the member and having one arm thereof extending in the general direction of reciprocation of the member and the other arm projecting outwardly therefrom, a thread guide driven by the last-named arm, an inclined guide with which the first-namedarm is operatively engaged whereby the lever is oscillated in timed relation to the reciprocation of the member, said inclined guide being oscillatable about an axis'arranged in the general plane of travel of the bell crank pivot, means to slowly oscillate the inclined guide about its pivot in one direction, meansto rapidly oscillate the guide in the opposite direction including a friction clutch and a positive stop limiting oscillation of the guide in the last named direction.

JOHN J. SIPPEL.

Images