US1600894A - Spinning frame - Google Patents

Description

Sept. 21 ,1926. r 1,600,894

J. H. LALIBERTE SPINNING FRAME Filed Nov. 24.. 1924 2 sheets-Sheet 1 J H. LALIHERTE SPINNING FRAME 'Sept. 21 19260 1,600,894

Filed Nov. 24, 1924 2 Sheets-Sheet 2 Patented Sept. 21, was.

JOSEPH H;

.LALIBERTE, OF NASI-I'UA, NEW

HAMPSHIRE, ASSIGNOR NASI-IUA KEV] HAMPSHIRE.

srrnnrne FRAME.

Application filed November 24, 1924 Serial No. 751,798.

This invention relates to spinning" frames and like machines used in the building of bobbins or other thread packages, hereinafter for convenience referred to as bobbins? it is the usual practice to wind or fill bobbins in a ring spinning frame, this ma- {chine being equipped with a builder motion which determines the manner in which successive layers of thread shall be wound on the'bobbin. The present invention isespecially concerned I ing wound thread'packages. V

In winding thread on a bobbin to make a package of this type, the builder motion gives the ring rail a slow reciprocating motion, gradually increasing its elevation between successivereciprocations until the bobbin has been filled to the desired height. Usually these machines are equipped with a full bobbin stop motion which operates auto- 'matically to stop the machine when the fillof the bobbins has been completed. According to the common practice, the machine tender at this pointstarts up the machine again and immediately begins to wind down the ring rail, stopping the machine when the rail has been completely lowered. V This results in winding the yarn or. thread in a spiral around the bobbin and then winding a fewturns of thread oryarn on the base'of the bobbin. VJhen the bobbins are subsequently loaded into the magazine of a loom, these turns must be unwound, and for this reason it is objectionable to wind an excessive quantity of yarn on the base of thebobbin. Where the winding down operation is performed by bench-however, it is inevitable that there will be a wide variation in results since the spindles rotate very small variation in the time taken by an operator to shut down the machine will, therefore, make a very substantial difference in the quantity of yarn that will be wound V on the bases of the bobbins.

It is the chie'fr'ob 'ect of the present invention, therefore, to improve the construction of spinning machines with a view to producinggreater uniformity in that portion of the thread package which is formed by the winding down operation, and reducingthe care and attention required by the operator. in performing this. operation, .i ,',lo this end-the with machines of this type equipped with mechanism for building fillvery rapidly, and a lnvention provides a mechanism for automat cally wlndlng down the ring rail'and so P controlling the successive stepsinthis operation that the desired accuracy in the winding of the thread packages will be obtained. It has been proposed heretofore to wind down the ring rail automatically at the conclusion of the bobbin building operation,but these mechanisms have not, so far as I am aware, been satisfactory due to the fact. that the point at which the machine finally stops 'annot be accurately controlled, with the result that an excessive variation is produced in the amount of thread wound on the bases of the bobbins. The present invention provides a mechanism that overcomes this objection;

The nature of the inventlon will be readily understood from thefollowing when read in connection with description the accompanying drawings, and the novel features will be particularlypointed out in the appended claims. 1 g i i Inthe accompanying drawings, I v Figure 1 is a si'de elevation of a portion of a spinning frame showing only those parts of the machine with hich the invention is more particularly concerned; 1

7 Figs. 2 and 3 are side elevations showing successive steps In the operation of winding down the ring rail and stopping the machine v Fig. t is a tionyof the belt shifter and adjacentparts;

Fig. 5 is atransverse, cross-sectional view through the machine showing a portion of the mechanism which winds down the ring rail, certain of the parts being shownin elevation; V

. Fig. 6 is a side view of the more important parts of the builder mechanism; i Fig. '7 is a plan view of the clutch and adjacent parts; 1

r re a H 1 a Fig. '9-'s aside elevat on of the clutch shifting lever. P

In'the maclnne'shown the ring rail isiny. a is shown Fig. 3 na jendview a one of'the'clutch side view, partly in cross-secportedat' the outer endofan arm .fi wliich is i secured rigidly to a cross sha ftfi, A weight V V 8, Fig. 1, and shown more completely in Fig.

6. The lever 9 of the builder motion is connected by a chain 10 to a sector secured fast on the rock shaft 6, a portion of thischain being woundon a drum 12, Fig. 6, so that as 1 the lever 9 is reciprocated by the cam 13 during the operation of the machine, the ring rail 2v will be raised and lowered, but the unwinding of the chain lOfrom the drum 12 will allow the rail torise, a step at a time,

7 between successive reciprocations. This reother rod 21 Sults in buildingup the bobbin by the usual filling windproce'ss. All of the mechanism sofar describedis Constructed, arranged and operated in the usual manner.

The machine is equipped with mechanism for automaticall I sto 3 3111 1 it which com- I prises a beltsh-lfter 10, F 1g. l, secured on the endof a rod.16.and: operative to shift the driving belt l Tfrom the fast pulley 18 on to theidle or loose pulley 19. or vice versa. The

rod 16 is'mount'ed in the frame to slide longitudinally. Adjustably secured to the end of vthisrod remote from the shifter is a small bracket or. arm 20 which is in line with analso. mounted to slide longitudinally in the machine. Avstrong spring 22 connected with this rod tends to move it toward the right, Figs. 1 to 3, and thus to act through thearm 20, rod '16 and shifter 15 to 'moveth'erbelt 17 from the fast pulley 1801 to I the idle pulley 1'9 and. thus stop themachi-ne.

Normally, however, the movement of the rod 21, underthe influence of the spring 22 is .l vrevented by a pivoted latch 24: which en- 7 gages a stop 25 ad'justably secured to the rod [This mechanism is under the control of a part movable in conjunction with'the ring rail. 1That-is,a rod 27 is supported at its lower end by an arm 28, secured to the cross shaft 6, so that as this shaft is rocked by the lvl upon the, trippingjo'f the latch 24 to-jwin d wn the 1 builder motion during the progress of the bobbin winding operation, the rod 27 will gradually be ra sed until, when thebuilding 0f thebobbins has been completed, its upper end will strike the latch, 24 and lift it. This I releases thestop 25 and allows the spring 22 to operate through the connections with the rod-27 is adjustably secured in the awn-28 so that itfmay be made to trip the latch 24 at ydesired-point in the rise of the ring "Ihe machine also includes a mechanism h:- is b-rou'ghtiiito operationautomatical- .T smech ni mromprisesa clutch including'a'drmng member'to ons justde-' "1,; will thus a e ti e res vthiich also 'moveswitli', or' in "conpn'i and a driven member 31, both'mounted loosely on the shaft 32 of the builder motion. Preferably the part 30 is integral with a sprocket wheel 33 which is driven from the shaft 34, Fig. 5,-through a sprocket chain 35. The other clutch member 31 is slidable on the shaft 32 into and out: of clutching at gagementwith the member 30, and its p0si= tion is controlled by a clutch lever 36 pivoted at 37, the lower end of this lever being forked to straddle the part 31 and having pins or rolls 38-38 which run in a groove 39 formed in the part 31. A spring 40, Fig. 1, tends to throw the sliding clutch member 31 into engagement with its cooperating member 301 ,Normally, however, theclutch is held out or disengaged by means of a collar ll adjustably secured to the sliding rod 21, this collar bearing against the upper end of the clutch shifting rod36. "When the clutch part 31 engages the driving clutch member 30, rotation is thereby imparted to a cam 42,-Figs. l, 5 and 7, and this cam opcrates through a roll 43 to depress a lever 44: which is connected by means of a chain 45 to on V anarm 46 secured to the, cross shaft 6, and

rupted almost immediately by the engageili'lllt of the stro'p 25 with an arm 47 pivoted at 4:8, Fig. l, on themachine frame, and a'djustably secured by abolt 49 to the per portion of'the'rod 27 so that this arm moves in conjunction with the ring raii. Upon the releasing of the stop 25 by the latch 24. the rod 21 is allowed tomove just far enough to permit the spring; 40 to throw in the clutch EEO-31 before the arm 4-? catches the stop 25 and interrupts the movement of the rod 21. This, movement is not suiiicient to shift the'belt l7, b-utit does serveto initiate the operationfo'f the mechanism that winds down the ring rail, this function being performed by the cam 42, lever 44, and the connections between this lever and the cross shaft or rock shaft 6. As the ring rail moves downwardly the arm t? and i the free end of thearin 4:7 slides down past the stop 25, the spring 22 then operates through there-d '21 and the connections with the shifter 15 to move the belt o'n to the loose 7p uiley' 19, thus stopping the. machine. be observed th'atwhile the action of the'st'opping mechanism is initiated the rail, the completion "of thjis operati'onris under t he eontroliof' rm 47 cast I rodfl27 of course, Jno've in conpinction with it, and as soon as belt shifter to shut downthe machine. The

rod toward the left, Figs.

with, the ring rail 2. The point at which the arm. 4? permits the belt shifting mechanism to function can be adjusted with reference to the travel of the ring rail by loosening the bolt 19 and moving the arm 47 on the rod 27. i

When the cam 42 has moved the lever it into its lowermost position, as shown in Fig.

up or down Fig; 5, slips under the frame part tween the latch and the lever in such a way as to hold the latch forward in its operative position. In order to release this latch it is simply necessary to push it backwardly far enoughto disengage its notch from the part 51.- 7

As the clutch' parts 30and 31 continue to rotate after completii'ig the winding down operation, a cam lug 53, Fig. 7, integral with the partBO, engages the inclined face of other cam lug 54: formed on the relatively stationary clutch shifting lever 36, thus forcing this lever backwardly far enough to disengage the clutch. This movement swings the upper endof the lever toward the left, Figs. 1, 2 and 3, far enough to permit the latch 55 to'drop in behind the lever, as shown in Fig. 3, and thus loclr'the clutch in its disengaged or inoperative position.

The machine now is in condition for the dotting operation, and it has been brought into this condition entirely automatically,

no attention on the Jart of the o ierator'hav ing been required up to this point. After dofling the operator winds down the builder motion in the usual'manner, and then throws the usual hand lever (not shown) which-is connected with the rod 16 and moves this 7 1 and 3, far enough to shift the belt 17 back on to the fast pulley 18. At substantially the same time the operator releases the latch 50, thus starting the machine into operation again. As the rod 16 is moved toward the left, the bracket 20 engages the end of the rod 21'and moves it toward the left, thus restoring the parts to the positions 1n which they are 1, with the latch 24 engagand the collar a1 bearing against the upper end of the lever 36.

It will now be appreciated that this invention provides a mechanism for automatically winding down the ring rail insuch a manner that the amount of thread or yarn that will be wound on the bases of the bobbins can be controlled very accurately. In prior mechanisms of this type with which I am familiar, there has'been no control over the stopping of the machine except that exercised by the full bobbin stop motion. Inthe machine shown the full bobbin stop shown in Fig. ing the stop 25,

motion simply initiates the operation of the stopping and wmd' down 111CllfllllSll1SjlJillZ the actual stopping of the machine is. under the control of a device movable in conyuno' tion with the r' 1g rail so that tile stopping of the machine is' not permitted until the ring rail has been wound down to a prcc e-- termined point. is wound onthe bases of able heretofore.

While I have herein the best embodiment of my invention that I have so far devised, it wiil; be evident that theinvention could be embodied in other forms'without departing from the spirit or.

scope thereof. 1

Having thus described I'desire to claim as new is: 1. In a ring spinning machine, the combination of mechanism for stopping the mamy invention, what The amount of yarn which j the bobbins there fore can be controlled in this mechanism with an accuracy which has not-been obtain shown and .d escrihed chine, automatic means for initiatin'g'the operation of said mechanism when: the ring rail has risen to a predetermined point, and

additional means for controlling the completion of the operation of saidmechanlsm.

2. In a spinning. machine having a ring rail and a builder motion, the combination of mechanism for stopping the machine,

means independent ofthe builder motion for windingdown the ring rail, and mechanism connected with the ring rail andresponsive to changes in the elevation. of said rail for controlling the operation of both said mechanism ant said means. a

3. In a' ring spinnin machine, the combination of mechanism ror stopping the machine, automatic means for initiating the operation of said mechanism when the ring rail has risen to a predetermined point, means for winding down the ring rail, and additional. means movable in conjunction with the ring rail for restraining the action of said mechanism until the ring rail has reached substantially a predetermined point in its downward movement. 4:. In a ring spinning machine, the combinatlon of mechanism for stopplng the ma chine, means for winding down the ring rail,

a part movable in conjunction withthe rin rail for initiating the operation of both said means and said mechanism when the ring rail has reached a predeterminedpoint in its traverse, and another part movable in conjunction with said rail for restraining the action of said mechanism until the ring railhas reached a predetermined point in its downward movement.

5. In a ring spinning machine, the combination of mechanism for stopping the ma chine, means forwinding down the ring rail. i

mechanism connected with the ring rail and responsive to changes in the elevation of said rail for controlling the operatlon of both IVS 1 for holding. said ring rail in its lowermost position. I p

6. In a ,ring spinning machine, the combination of a belt shifter, a spring, connections between said spring and said belt shifter for enabling said sprin to shift the belt from one of its operative positions to another, a latch arranged to act .on said connections to hold them against movement by said spring, meansmovable in conjunction With the ring rail of the machine for trip- 7 ing said latch when the ring rail has reached a predetermined point in its upward -movement, and an additional part movable in conpinction wlth said rail and operablethrough said connections after they have been released by said latch to restrain the movement of said shifter until the ring rail has dropped't-o substantially a prcdcterminedfpoint. a i

7. In a ring spinning machine having a ring rail and a builder motion, thecombina-- t-ion of a belt shifter, a spring, connections between said spring and said belt shifter for enabling said spring to shift the bel'tfifrom one of its operative positions to another, a latcharranged to act on said conrnectionsto hold them against movement by said spring, a rod arranged to be moved by the builder motion to release saidlatch when the ring rail has reached a predetermined point inits rise, driven mechanism for de- -pressing said ring rail including a clutch 'under the control of said connections, an

arm connected with said builder motion and arranged to be moved thereby, and a stop carried by said connections and arranged to be engaged by said arm immediately after the tripping of said latch whereby said arm is operative to interrupt the movement of said connections while the ring rail drops to a predetermined level. V

8. In a ring spinning machine'having a ring rail and a builder motion, the combination of a belt shifter, a slidable rod connected with said shifter, a springvconnected with said rod to move said shifter from its running to its idle position, a stop carried bysaid'rod, a latch arranged to hold said rod against movement under the influence;

of said spring, a part connected with said builder motion and arranged, to be moved therebyto trip said latch at a predetermined point in therise of the ring rail, mechanism whereby the clutch is thrown in when said latchis tripped, and an arm arranged to be moved by said builder motion and operative to catch said stop and restrain the movement ofsaid rod immediately"after said said clutch has been thrown in and before the shifter has been moved substantially, said arm being arranged to re ease said stop when the ring rail has dropped to apredetermin-ed level and thereby vpermit said spring to complete the movement of said shifter. v

9. In a ring spinning machine having a ringrail and a builder motion, the combination of a belt shifter, a slidable rod conn-ec-ted. with saidshifter, a spring connected with said rod to move said'shifter from its running to its idle position, a stop carried by said rod, a latch arranged to hold said rod against movement under the influence of said spring, a part connected with said builder motion and arranged to be moved thereby to trip said latch at a predetermined point in rise of the ring rail, mechanism in: cluding a clutch for depressing said ring rail, a spring for operating said clutch, con- 'nections between said clutch and said'rod whereby the c-lutchis thrown in whenrsaid latch is tripped, an arm arranged to be moved by said builder motion but operative to catch said stop immedlately after said clutch has been released and to interrupt the movement of said rod until thering rail ha droppedrto a predetermined level,1means for disengaging said clutch automatically when the motion of the ring rail has been sub-V 'stantially completed, a latch for holding said ring rail in its lowermost position, and another latch operative when said clutch has been disengaged to hold it in its idle position.-

JOSEPH H. LALIBERTE.

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