US1694432A

US1694432A - Device for delivering the tufts of textile fibers from combing machines having intermittently-rotating nipper drums

Info

Publication number: US1694432A
Application number: US236254A
Authority: US
Inventors: Schleifer Carlo
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-12-06
Filing date: 1927-11-28
Publication date: 1928-12-11
Anticipated expiration: 1945-12-11

Description

Dec. 11, 1928. 1,694,432

' C- SCHLEIFER DEVICE FOR DELIVERING THE TUFTS OF TEXTILE FIBERS FROM COMBING umcamns HAVING INTERMITTENTLY ROTATING NIPPER mums Filed N 1.927 2 Sheets-Sheet 1 Dec. 11, 1928- 1,694,432 (J. SCHLEIFER DEVICE FOR DELIVERING THE TUFTS OF TEXTILE FIBERS FROM COMBING MACHINES HAVING INTERMITTENTLY ROTATING NIPPER DRUMS Filed Nov. 28, 1927 2 Shqets-Sheej: 2

tion ot the rocking of thewhole rockin latented Dec. 11, i928.

entree 1 teale352 orrica.

CARLO sorrnnrrnn, or NOVABA, rraLY.

DEVICE For. nntivnnme rur rs or trnxrrnnrinnns rnoi/I COMBIfiGiMACHINES HAVING EIJTEEMITTENTLY-ROTATING ivrrrnn nnuMs.

Application filed November 1927, Serial 1a. 2%,254, and in ermany December s, was.

combing machines for textile fibers having two-or more drums (Schleifers system U. S. Pat. 1,408,?80, 7 March 1922. and U. S. Pat. 1,425,059, 8 August 1922} which have an intermittent rotary mot-ion and are provided at their periphery with a pluralltiy oi nippers are already known. The-nippers are capable of being closed and opened at definite intervals for seizing and holding the tufts of fibers or for releasing them as required. VJit-h this arrangement the fiber tufts to be treated pr to the nippers of successive drums, are combed at their forward and rear ends by rotating}; combing drums and are finally delivered 7} thenippers or the last drum to a device by which they are conveyedaway.

Now the present invention has for its, object to provide such a device Ior C0 1V}l;

tufts from the combine away the combed fiber machine of the kind described above. The device consists substantially of a delivery cylinder which is arranged parallel to the nin which are in the discharging position in pressure applying cylinder which" can 'be causedto rot-ate through making contact with the delivery cylinder and is so arrang- "l as also to be capable of rocking about the az-iis of the said cylinder together wi teed cylinder which is also capable of being rotatec "ht in contact with a UP? 7 through being broi face arranged co-a1 ally with the deli ery cylinder and fixed rigidly to the same. The motion of the whole arrangement of rocking; cylinders consists of a rocking motion, namely a forward motion towards the nippers to be discharged, while the nipper drunr of the combing machine is stationary. and a return rocking motion during the intern'iittent motion of the said drum. Means are also provided for preventing the delivery paying out cylinder taking part inthe forward movice and for enabling the deliv i'y 'cyl I to take part onlyin the first portion or backward motion. Owing); to this arrang ine ment, the delivery cylinder remains stalivery device and Figs. 6,7

'motionofthe tuft now delivered with respect to the next tuft to be delivered. In the last portion of the return motion the delivery cylinder isagain brought to rest and the rocking cylinders again commence to rotate, but in the opposite direction, forwhich reason the feed cylinder only partially neutralizes the forward motion previously imparted to the web of fibers. i r

A constructional form of the invention, is shown diagrammatically in the accompanying drawing and is given only asan'ezramplef Figs. 1, 2 and 3 show in side elevation, partly in section, all the main parts of the delivery device in three different working positions. Fig. 4 shows the same device in frontelevation, partly in section. The diagrammatic view shown in'liig. 5 represents the successive positions olithe var ousparts of the. de-

andS showmodified forms of the device. v I p In Figs. 1A of the drawing, 1 is thelast drum er the combing machine having nip v pers uniformly distributed on the periphery, said nippers, which grip the fibers. having

jaws

2 and 3 one of which is fixed whilst the other is movable. The drum 1 is arranged so as to rotate loosely on its shalt-4; andhas an intermittent rotary motion ln partedto it in the direction of the arrow mshow'n in Fig.3,

the drum being rotated regularly duringeach partial revolution through the distance between two successive nippers, for instance by. means of an. ar1n5 arranged so as to rock on the shaft 4 anda pawl 5' which ispivol'ed on thearm 5 and is capable of engagingwith a. ratchet wheel 1 fixed to the drum' 1. A detent 5" which is: pivoted on a pin 5 fixed to the frame of the machincand is capableofenin the notches of the ratchet wheel 1 serves thev purpose of preventing thedrum 1' from turning in the'reverse direction. 7 p The delivery device according to the present invention compriscstbe delivery cylin- (ler (i, the pressure applying cyl nder 7 "teedjcylind rll'which, in the constructional which is parallel "to thecylinder 6 and. theform shown. in .higs. 1 4,, together with a second similar cyl1nd er,-not shown, acts as support anordinary endless conveyor b d S for the removalof the fibers. The der 6 loosely rotatable on the sbatt lO, which is parallel to the shaft land isournailed in Slwilfl'blfi arms 11 ilorn'iingpartot the shaft ll) and for this purpose their shafts are journalled in two arms 12 constituting a carrier keyed to the ends of the shaft 10. The cylinder 7 is in direct contact with the cylinder 6 and rolls on the same duringthe rocking motion. For securing a better contact between the twocylinders longitudinal flutings are preferably, provided on theperipheralsurface of both cylinders. In the constructional form described, the cylinder 9 for the band 8 is not incontact with the cylinder 6, but a toothed wheel 9 is keyed on the shaft of .tl c cylinder '9, which 'wheel meshes witha toothed wheel 6 fixed to the cylinder 6, so that the cylin ler 9 rocking with respect to the cylinder 6, the cylinder 9 will also have a rotary motion imparted to it. Inorder that the endless conveyor band 8 shall always remain taut during the rocking motion of the feed cylinder 9, it is necessary, as will be readily understood, that the rear cylinder (not shown in the drawing), by which the conveyor band is supported, shall perform a similar rocking motion.

The rocking motion of the two cylinders a 7 and 9 is imparted to them by connecting rod 13 which is pivoted at 5" to an eiitension to an arm 12 keyed to-the shaft 10. I r

; The cylinder 6, which is loosely rotatable on the shaft 10,is permanently prevented from rotating in theclockwise direction by a detent 14 which is mounted on an arm 11 and is kept by a spring 18 in engagement with a fine toothed ratchet wheel 15 fixed to the cylinder 6. The cylinder 6' is also generally prevented from rotating in the other'direction by a second detent 16 which is also pivoted tothc arm 11, is kept by the same spring 18 in engagement with a ratchet whcelj17, which also fixed to the cylinder 6, and has teeth of greater pitch. lhe detent 16 can be temporarily lifted out of en gagement with the ratchet wheel 17 this being effected by any of the stop pins 19 which are provided in suit-able positions on the periphcry of the drum 1 in the vicinity of each of nippers, for the purpose of striking an the cy 1 inthe COIlDtQR-ClOClZWlSQ direction.

arm 16" oi the detent 16 and thereby releas ider 6 temporarily for rotating The device operates in the following man fne'r. When a closed pair of'nippers 2, S

with a tuft -oof combed fibers comes to rest'in the position shown in Fig. 1, atlthe end ofeach partial rotation of the drum 1 of the con'ibing machine, the forward portion of this tuftwill lie closely against the web 5 formed by the previously delivered tufts on "the delivery cylinder 6, and prolonged by the web already deposited on theendless conveyor band 8; Owing, to the position occupied at this moment by the rockingarm 5the two cylinders 7 and 9 are at their great est distance from the drum 1. This position of the parts is shown in Fig. 1, which correhappens to be, the cylinders 7 and 9p'erfor1n their forward motion o; (Fig. 5) until they reach the position in which thoy1-n'enearest to the drum '1, as shown in Fig. 2, and as indicated. by H i n Since the cylinder 6 cannot take part in the forward motion a, as it is prevented fromdoing so by the detent 14L- engaging in the ratchet wheel 15, the effect will be that the two cylinders 7 and 9 willrotate, the former rolling around the cylinder 6, until it has gripped the forward end of the freshly delivered tuft a and has pressed it against the web b and the latter owing to the toothed wheel 9, rolling around the toothed wheel 6', whereby the end.- less conveyor band 8 is fed forward by the amount -S- in the positive direction of its forward motion (Fig. I

VVhen the arm 5 rocks backfrom the posi tion shown in Fig. 2 into that 'shown in Fig, 1, causing the drum 1 to rotate, the two cylinders 7 and 9 will also swing back into the position shown in Fig. 1. This return motion comprises the two phases fi' and (Fig. In the first part -,8 of the motion which extends approximately into the position snown in Fig. 3, indicated by 111 in Fig. ,5, the delivery cylinder 6, owing tothe fact that detent 16 is not in engagement with the ratchet wheel 17, will during the rocking motion be carried along together with the parts 7 and 9 so that neither the cylinder 7 will roll on tho'drum 6 nor the toothed wheel 9 on the toothed wheel 6. This rock ingmotion of the cylinder 6 continues until the bottom. of a notch in the ratchet wheel angle through which the cylinder 6 is turned is equal to the angle 8? or the distance be tween two teeth of the ratchet wheel 1.7.- same angular motion will hasv parted to the lasttuft with reoe' the position occupied by it at; the moment it was delivered, soj'that the following tuft -a (Fig. 3), on'heing brought against the cylinder 6. 1S displaced w1th' respect tothe tuft (t in front of it by a linear distance I equal to the length of the are subtended at the periphery of the cylinder 6 by the angle i been imv -,8. In this way successive tufts are given a desired relative position so that they overlap one another to form the web --b, 12

In-the second part -y of'the returninotion, which extends as far as the position shown in Fig. l, the cylinder 7, owing to the fact-that cylinder 6 is again brought to rest, will roll. around the-cyl nder 6 and the wheel 9' around the wheel'G. During this return motion the cylinder'9 will impart to the endless band 8 a. motion S" in the i egative sense, or in other words, a backward motion (Fig. 5) which, however, is smaller than the motion ''S previously imparted to itin the opposite direct on as forward.

feed

angles -,8 between the teeth oi? the ratchet wheel 17. By suitably varying the size oi? the angle -,8 and the diameters of the

wheels

6 and 9 any desired overlapping: of succcssive'tui'ts may be obtained, according to the kind of fibers used and their length.

The same result may be obtained If, as shown in the modification according; to Fig. 6, the pressure applying cylinder '7 be omitted and the feed .cylinder9 beiso arranged thatit'can roll around the delivery cylinder 6 together'with 'the'en dless band 8. In practice, however, the provision-0t a separate pressure applying cylinder 7- is to be preferred, asthe cylinder 7 may be madeoit relatively small diameter so that it is capable of being. brought close upto the nippers to be emptied, and can thus nip fairly short tufts. I The device for conveying the web of fibers -7)" may also be made soas to remain in the same position in which case they would he independentotthe feed cylinder 9, which is arranged to rock, as shown in Figs. 7 and 8.1 In 7 the endless conveyor band 8 is stretched over two cylinders, only of which is shown, both cylinders beingjourn-alled in fixed bearings. In the. constructicnal form shown in F 8 the niotionoi the web Z)-.is produced byla roller S and a count-ei roller SHvhich are also journalled in fixed bearings. In both cases the portion Z)- of the web of fibers sags down freelyv it will be seen that the invention in no way limited to the constructionalctorins de scribed an'dfshown, but that without. departing from theunderlying idea 01- the invention, the device may be modified in any way to meet all requirements and circumstances met with in practice.

I claim: 7 r 1; In a device of the cha acter described,

thejcombination with an intermittently ro the tating'drum, and a series of-nippers carried thereby, of a delivery cylinder, a feed cylinder, in parallel relationto the delivery cylinder, a carrier. for the'feed cylindenmea'ns to rock the'carrier'about the axis of the delivery cylinder, and means operable by the movementof the carrier to rotate the feed cylinder.

2. In a device-of the character described,

the combination with an intermittently-rotatin g drum, and a series of nippers carried thereby, of a delivery cyl nder, 2. pressure cylinder in operative relation to the latter, a

feed cylinder, in parallel relation to the delivery and pressure cylinders, a carrier for the pressure and feed cylinders, means to rock the carrier about the aXisof the delivery cylinder and means operable by the movement of the carrier to rotate the feed cylinder.

Elsin'a device of the character described, the combination with an intermittently rotating drum, and a series of nipperscarried thereby, of a delivery cylinder, a pressure;

cylinder in contact therewith, a feed cylinder,

acarrier for the pressure and feed cylinders, means to rock the carrier about the axis of the delivery cylinder, and means connected'with the feed and delivery cylinders operable by movement'ot the carrier "to-impart a' rotary ii'iovement to the feed cylinder.

In a device of the character described, the combination with an intermittently rotat-ing; drum, and a series of nippers carried thereby, of a delivery cylinder, a pressure cylinder in contact therewith, a feedcylinder, a carrier-tor the pressure and feed cylinders,

means to rock the carrier about the axis 01 the combination with an intermittently r0- tating drum, and a series of nipperscarried thereby, of a delivery cylinde a pressure cylinder in contacttnerewitlnla feed cylinder,

a carrier for the pressure and feed cylinders,

means to rockthc carrieraboutthe axis oithe delivery cylinder, intermeshing gears connecting the delivery and feed cylinders whereby rotation is imparted. to'tlie" latter during the movement of the carrier, and

niche direction.

6. In a device of the character described,

the'combination with an intermittently rost-ating drum,'and aseries of nippe'rs carried thereby, of a delivery cylinder,- a pressure cylinder incontacttherewith, a feed cylinder, a carrier for the prcssureandxfeed cylinders,

. means to rock the carrier about the axis of the delivery cylinder, and endless convey or carried on and moved by the feed cylinder.

'3. In a device of the characterdescribed, ii'iter nittently 270- the coinbiL ion with an means to lock the delivery cylinder against rotation during the movement of the carrier tatable drum, and a series of nippers' carried thereby, of a delivery cylinder, a feed cylinder parallel thereto, a carrier for the feed cylinder, means to rock the carrier about the axis of the delivery cylinder, means operatively connecting the delivery and feed cylinders whereby the movement of the carrier imparts rotation to the feed cylinder, a ratchet wheel fixed on the latter,- and a spring loaded detentengaging the ratchet wheel to lock the for locking the delivery cylinder against rotation in one direction during the forward movement of the carrier, and means to lock the delivery cylinder against rotation inthe I opposite direction during a part of the backward'movement of the carrier.

"9. In a device of the character described, the combination with an intermittently rotatable drum, and a series of nippers carried thereby, of a rotatable delivery cylinder, a pressure cylinder in contact therewith, a feed cylinder, a carrier for the vpressure'and feed cylinders, means to rock the carrierabout the axis of the delivery cylinder, gears connecting the delivery and teed cylmders,.means to lock the delivery cylinder against forward rotat1on, means to lock the delivery cylinder against backward rotation, and mechanism controlled bythe movements of the drum to release the delivery cylinder from the last named locking means during I the first portion of the backward movement of the carrier.

10. In a device of the character described, the combination withan intermittently rotatable drum and aseries of nippers carried thereby,"of a rotatable delivery cylinder, a

I pressure cylinderin contact therewith, a feed cylinder, a carrier for the pressure and feed cylinders, means torock the carrier about the axis-oi the delivery cylinder, gears connecting the delivery and feed cylinders, a detentto lock the delivery cylinder. against rotation in onedirection, an auxiliary detent to lock the delivery cylinder against rotation in the opposite directiomand means on the drum for holding the auxiliary detent out of looking position duringpart oi the return move- 7 ment of the carrier. 7

11. In a device of the character'described,

' the combination with an intermittentlyfrotating drum, and a series of nippers carried thereby, of a rotatable'dehvery cylinder ar- ,rangeolparallel to the drum, a pressure cylinder in contact with the delivery cylinder, a feed cylinder, a carrier for the pressure and feed cylinders, means to intermittently rotate the drum, andmeans to rockthe carrier towards the drum during a period of rest of the latter and rock the carrier away from the drum -during the movement of the latter. I

12 In a device of the character described, the combination with an intermittently rotating drum and a series of nippers carried thereby, of a rotatable delivery cylinder arranged parallel to the drum, a pressure cylinder in conta-ct'with the delivery cylinder, a teed cylinder, a carrier for the pressure and feed cylinders, means to intermittently rotate the drum, means to rock the carrier towards the drum during a period of rest of the latter and rock'the carrier away from the drum during the movement of the latter, means to lock the delivery cylinder against rotation during movement of the carrier to-. wards the drum, and means operativelyconnecting the delivery and. feed, cylinders whereby rotary motion is imparted to'the ieed cylinder during the movement of the carrier towards the drum.

13. In a device of the character described, the combination with an intermittently rotating drum,and a seriesof nipperscarried thereby, of a rotatable delivery cylinder a1.- ranged parallel tothe drum, a pressure cy1inder in contact with the delivery cylinder, a feed cylinder, a carrier for the pressure and feed cylinders, means to intermittently rotate the drum, means to rock the carrier towards the drum during a period of rest of the latter and rock the carrier away from the drumdurin g the movement of the latter, and

means to permit rotation of the, delivery cylinder during a portion of the movement of the carrier away from the drum.

1 4. In a device of the character'described,

the combination with a drum and a series of I nippers carried thereby, of actuating means to intermittently rotate the drum in one "direction, a delivery cylinder adjacent the drum, ash-aft on which the cylinder is loosely mounted, carrier arms fixed to the shaft, pressure and feed cylindersjournaled in said arms, means operated by the actuating means ilor oscillating said arms to-and from the drum, gears-on the delivery and feed cylin ders ope'ratively connecting them together, a

pawl and ratchet mechanism for preventing rotation of the delivery cylinder in one direction, an auXiliary pawl and ratchet mecha nism-for limiting the rotation of the delivery thecombination with a drum and'a series ot nippers carried thereby, of actuating mechanism for intermittently rotating the drum in one direction, a shaft parallel to the axis of the drum, a delivery cylinder rotatable on the shaft, carrier arms fixed to the latter, a pressure cylinder journaled in the arms in contact With the delivery cylinder, a feed cylinder journaled in said arms, gears connecting the delivery and feed cylinders, means operated by the drum actuating mechanism for oscillating the carrier arms to and from the drum, means for locking the delivery cylinder during the movement of the arms towards the drum to impart rotation to the pressure and feed cylinders throughout said movement, and auxiliary means to lock the delivery cylinder against rotation during a portion or the return movement of the carrier from the drum.

16. In a device of the character described, the combination with a drum and a series 01 nippers carried thereby, of actuating mechanism for intermittently rotating the drum in one direction, a shaft parallel to the axis of the drum, a delivery cylinder rotatable on the shaft, carrier arms fixed to the latter, a pressure cylinder journaled in the arms in contact With the delivery cylinder, a feed cylinder journaled in said arms, gears consaid movement, auxiliary means to lock the delivery cylinder against rotation during a portion of the return movement of the carrier from the drum, and means on the latter for controlling the operation of the auxiliary locking means whereby said delivery cylinder is free to rotate during the movement of the drum. 7 g

In testimony that I claim the foregoing as my invention, 1 have signed my name.

CARLO SCHLEIFER.