US1968359A - Rayon spinning machine - Google Patents

Description

July'31, 1934. IPPEL 1,968,359

RAYON SPINNING MACHINE Filed Dec. 12,1930 5 Sheets-Sheet 1 N F N's I N VEN TOR.

WITNESSES {70/222 Josgpb Szjpei ATTORNEY.

July 31, 1934. J. J. SIPPEL 1,968,359

RAYON SPINNING MACHINE Filed Dec. 12, 1930 5 Sheets-Sheet A TTORNEY.

FIG' I.

WITNESSES July 31, 1934. Y J. J. SIPPEL RAYON SPINNING MACHINE Filed Dec. 12, 1930 5 Sheets-Sheet 3 INVENTQR. Jofiiz JwgzSggaeZ A TTORN E Y.

y 1 I .J. .1. SIPPEL J 1,968,359

4 RAYON SPINNING MACHINE Filed Dec. l2, 1930 5'Sheets-Sheet 4 v INVEIVTOR. o/zzz Jsep/z Sgbpei A TTORNEY.

WITNESSES July 31; 1934. J. J. SIPPEL 1,968,359

RA [0N SPINNING MACHINE Filed Dec. 12, 1950 5 Sheets-Sheet 5 FIG K IX/VENTOR;

A TTORNEY.

Patented July 31, 1934 orrso STATES PATENT cries RAYON SPINNING MACHINE John Joseph Sippel, Upper Darby, Pa assignor to The Wicaco Machine Corporation, Philadelphia, Pa., a corporation of Pennsylvania Application December 12, 1930, Serial No. 501,775

2 Claims.

This invention relates to machines for spinning artificial silk or rayon, and

it has more particular has matured into U. S. Patent No. 1,954,956, dated April 1'7, 1934.

In the machine of my previous patent just referred to, a master control and timing means operates to automatically govern variable speed devices driving spindles for two alternative sets of spools in such manner that the speed'of the active set of spools is gradually decreased com. pensatively with the growth of the yarns thereon,

while the speed of the inac tive. set is proportionately increased concurrently in readiness for ultimate substitution for the first set. Thus the machine may be continuously operated with maintenance of the yarns under even tension and formation of a product which is uniform in denier OI gage.

dent to winding.

With reference to the attached drawings, Fig. I is a fragmentary side elevation of a rayon spinning machine conveniently embodying my present improvements.

Fig. II'is a fragmentary elevation of the right hand end of the machine (as considered in Fig. I)

drawn to a; larger scale.

Fig. III is a fragmentary cross sectional view of the machine, likewise on a larger scale, taken as indicated by the arrows Fig. IV is a fragmentary III-III in Fig. I. plan section, taken as indicated by the arrows IV-IV in Figs. I and II, showing more particularly the variable speed means for driving the spoo ls on which the yarns are collected incident to spinning.

Fig. V is a detail viewshowing certain parts associated with the master means by which the operative cycle of the machine is governed and timed.

Fig. VI is a fragmentary detail view of the novel mechanism provided for controlling uniform distribution of the yarns on the collecting spools incident to spinning. Fig. VII is a front elevat ion of the mechanism shown by Fig. VI, viewed in the direction of the arrows VII-VII on said latter figure.

Fig. VIII is a fragmentary staggered sectional view taken as indicated by the arrows VIII VIII i Fi v1.

Figs. IX and X are detail sectional views taken as indicated respectively by the arrowsIXIX and XX in Figs. VI and VIII; and,

Fig. XI is a view showing the manner in which the yarn is distributed on a collecting spool by the mechanism of Figs. VI and VII.

In general, the spinning machine herein mustrated'is similar to that forming the subject matter of the patent towhich reference has hereinbefore been made. As shown, there is a plurality of horizontally arranged spindles 1 and 2 supporting two .sets of removablespools 3 and 4 at each side of the upper part of the machine. These spool sets 3, a are adapted to be alternately used to collect the yarns Y as fast as they are formed by coordinated spinning units 5 which are correspondingly disposed at intervals along the opposite sides of the machine. The advantage of the arrangement is that the machine can be maintained in continuous operation by throwing the yarn ends over to the empty set of spools when the other set is fully wound. The spindles 1 and2 are suitably journalled in a super-structure 6 supported medially of the length of the machine by a number of transverse frames 7, 7a., and said spindles are respectively driven in unison, through spiral gear couples 8, from longitudinal line shafts 9 and 10 journalled in the frame super-structure. Laterally extending portions of .the frames 7, 7a serve to sustain troughs 11 for the setting baths through which the yarns Y are passed enroute from submerged spinnerettes 12 to the spools 3 or 4. The raw cellulose is delivered to the spinnerettes lz from the pumps 14 associated with the spinning units 5 through connecting goose necks 13. The pumps 1 are driven by spiral gear couples 15 from horizontal line shafts 16 which are journalled in bearing brackets 17 Fig III supported alongside the? troughs 11 on the lateral portions of the frames '7, 7a. Incident to winding, the yarns Y are distributed on the spools 3 and 4 by traversing guides 18. These guides 18 are secured to lengthwise extending rods 19 suspended by means of From Figs. I, II, III and IV, it will be noted that the line shafts 9, 10 for the spool spindles 1 and 2 are respectively coordinated, by sprocket chains 24, 25, with the output or secondary shafts 26, 27 of variable speed devices 28, 29 shown as being of the well known Reeves type and located at the right hand end of the machine. The input or primary shafts 30, 31 of these variable speed devices 28, 29 are connected by a sprocket chain 32 for rotation in unison. As in the machine of the patent hereinbefore referred to, an electric motor 33 is employed as a driving means, said motor being suitably supported on a platform 34 in the lower part of the machine beneath the variable speed devices 28, 29, see Fig. I. By means of a belt 35, power is transmitted, at reduced speed, from the motor 33 to the main shaft 36 of the machine which is supported transversely of the end frame 7a in journal brackets 37, see Fig. II. At its opposite ends, the main shaft 36 is fitted with bevel pinions 38 that mesh with bevel gears 39. From these bevels 39 motion is in turn communicated at further reduced speed, through spur gear trains 49, to the line shafts 16 for the pumps 14 of the several spinning units 5. That portion of the main shaft 36 within a housing shown at 41 in Fig. II carries a miter gear pinion 42, which, through an intermeshing pinion 43, drives a vertical shaft 44 journalled in an upward bearing boss 45 of said housing. Another miter gear pinion 46 at the upper end of the vertical shaft 44 meshes with a companion pinion 47, which, through a train including spur gears 48, 49 and 50, communicates motion to the input shaft 31 of the variable speed means 29. In addition to the bevel pinions 43, 46, the vertical shaft 44 has secured to it a worm 51 to drive a worm wheel 52 of the master governing and timing means comprehensively designated in Figs. I and II by the numeral 53. As shown, this master control means 53 comprises a heart shaped cam 54 which is secured on a shaft 55 that rotates in a bearing 56 bolted to the end frame 7a. Ordinarily, this cam 54 makes one revolution in eight hours, it being driven at this rate from the worm wheel 52 through the medium of interposed speed reducing instrumentalities including a spur gear train 57, a bevel gear couple 58, and worm gear couples 59 and 60, all as shown in Fig. II.

The heart shaped cam 54 is influential upon a roller 61, see Figs. II and V, at the lower end of a double armed lever 62 fulcrumed on a bracket 63 attached to the frame 64, Fig. II, of the variable speed devices 28, 29.

The upper and lower ends of the lever 62 are see Fig. IV. The roller 61 is held in contact with the heart shaped cam 54 through pull exerted upon the upper end of the lever 62 by a weight at the end of an attached cord or chain 76 which is guided over a sheave 77 free to rotate on a stud let into the end frame 70;. During a semi-rotation of the heart shaped cam 54, the machine passes through a winding cycle with deposit of a predetermined amount of yarn Y upon the spools 3 or 4, as the case may be. Assuming the cam 54 to be rotating in the direction of the arrow in Fig. II, it will be seen that, through the lever 62, the variable speed devices 28, 29 are so governed that the speed of the upper or active spools 3 is gradually decreased as the yarn Y builds up on them, while the speed of the idle spools 4 is concurrently increased so as to be rotating at the maximum speed at the completion of the machine cycle when the yarn ends are thrown to the latter spools.

having given a general synopsis of the machine, I will now proceed to describe the novel mechanism which I have provided for governance by the master control and timing mechanism 53 of the machine, to predetermine uniform distribution of the yarns Y longitudinally of the spools 3, 4 by the traversing guides 18. For this purpose reference will be had more particularly to Figs. I, II, VI, VII and VIII. As there shown, this mechanism includes a gear housing 78 which is secured to the transverse frame 7 near the center and at a level somewhat below that of the rock shaft 23, hereinbefore referred to. The housing 78 provides end thrust bearings 79 for a shaft 80 whereto motion is imparted, through an intermeshing bevel gear and pinion 81, 82, from a counter-shaft 83 which passes to the exterior through a bearing boss 84 at the front of said housing. Secured to the outer end of the shaft 83 is a spur gear 85 which meshes with a pinion 86 on a counter-shaft 87 which extends into the gear housing 41 on the frame 7a and in turn receives motion through a bevel gear couple 88 (Figs. I and II), from the main drive shaft 36 of the machine. Alongside the bevel gear 81 the shaft 80, within the housing 78, carries a crazy wheel 89. whereof the periphery is grooved to engage a roller 90 on a horizontal bar 91 guided for endwise sliding movement in bearings 92 integrally formed with the housing 78 at the exterior. A swivel block 93 at one side of the slide bar 91 is engaged within a bifurcation at the lower end of a double-armed rock lever 94. This lever 94 is secured to a shaft 95 carried by a head 96 which is slidable vertically on a guide bar 97, said guide bar being bolted at its top to a horizontal connecting member 98 extending between the frames 7, 7c, and at its bottom to the housing 78. The bifurcated upper extremity of the lever 94 engages a swivel 99 carried at the end of an arm 100 secured to the right hand end of the shaft 23, as viewed in Figs. I and VI, whereby rocking movement is imparted to said shaft. Secured to the back of the head 96 is a lug 101 which rides on the periphery of a spiral cam 102 fast on one end of a shaft 103 having journal support in a bearing 104 bolted fast to the guide bar 97. At its opposite end the shaft 103 has secured to it a miter gear 105 that meshes with a miter gear 106 at the lower end of a diagonal shaft 107. To the upper end of the diagonal shaft 107 is secured a worm wheel 108 which is driven by a worm 109 on a shaft 110. As shown in Figs. I, VI and VII this shaft 110 also carries the worm wheel of the gear couple 59 embodied in the master control and timing mechanism 53. Accordingly, as the shaft 110 revolves, its movement is communicated at greatly reduced speed to the spiral cam 102 so that the latter makes one complete revolution during each cycle of the machine. Rotation of the cam 102, is attended by gradual elevation of the block 96 and the axis 95 of the rock lever 94 carriedby it, so that the operative relation of the said lever with respectto the slide bar 91 on the one hand and the rocker arm 100 on the other, is varied with attendant decrease in the reciprocating movement of the traversing guides 18 and building of the yarns Y on the spools 3, 4 after the manner shown in Fig. XL Upon completion of a rotation of the spiral cam 102, the block 96 drops suddenly from the high point to the low point of said cam in readiness for the next winding cycle of the machine which is carried out in precisely the same manner as before.

From the foregoing it will be seen that I have provided a simple and reliable mechanism capable of being governed by the timing means of the machine and of predetermining uniform distribution of the yarns Y longitudinally of the spools 3, 4 while the speed of said spools is gradually changing under the influence of the variable speed means 28, 29.

Slight variation in the maximum and minimum throw of the traversing guides 18 may be had through provisions made for adjusting the position of the swivel block 93 carried by the slide bar 91. As shown in Figs. IX and X, the pivot 111 of the slide block 93 has a squared enlargement 112 engaged in a vertical guide slot 113 out crosswise of the top of the slide bar 91. By means of an adjusting screw 114 taking into the squared enlargement 112 of the pivot 111, the swivel block 93 can be raised or lowered with attainment of the indicated end.

Having thus described my invention, I claim:

1. In mechanism for determining even distribution of successive layers of yarn along the length of spools in rayon spinning machines, the combination of a rock lever oscillated by interposed connections from the main drive shaft of the machine to reciprocate a traversing yarn guide, a slide bar connected with the rock lever, a crazy wheel driven from the main shaft for reciprocating said slide bar, a head carrying the fulcrum axis of the rock lever, a guide confining said head to reciprocative motion, and a rotatable spiral cam for progressively shifting the movable head on its guide to vary the position of the rock lever fulcrum axis concurrently with gradually changing rotary speed of the spools.

2. In mechanism for determining even distribution of successive layers of yarn along the length of spools in rayon spinning machines, the combination of a rock lever oscillated by interposed connections from the main drive shaft of the machine to reciprocate a traversing yarn guide, a slide bar connected by a swivel block to one end of the rock lever, means whereby said swivel block can be adjusted relative to the slide bar, a crazy wheel driven from the main shaft for reciprocating said slide bar, a head carrying the fulcrum axis of the rock lever, a guide con-

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