US2284730A - Textile machine - Google Patents

Description

June 2, 1942.

w..1. ELVIN ETAL TEXTILE MACHINE Filed Feb. 9, 1940 5 Sheets-Sheet l June 2, 1942. W,*J ELVlN ETAL 2,284,7301` TEXTILE MACHINE 3 Sheets-Sheet 2 Filed Feb. 9, 1940 S R O T N E V m WILLJAM J. ELVlN RAYMOND D. REEL Mea R- 537ml. 7m

June 2, 1942. w. J. ELVIN lrA`L TEXTILE MACHINE Filed Feb. 9, 1940 3 Sheets-Sheet 3 INVENTORS wlLLlAM J. ELVIN y- 5mm.

TToRNEs YMOND D. REEL LME.

Aof a twisting and winding machine.

Patented June 2, 1942 TEXTILE MACHINE William J. Elvin, Frostburg, Md., Raymond D.

Reel, Keyser, W. Va., and `Elmer R. Stahl, Meyersdale, Pa., assignors to Celanese Corporation of America, a corporation of.` Delaware Application February 9, 1940, Serial No. 318,028

13 Claims.

This invention relates to textile machines and relates more particularly to improved devices for producing bobbins and like packages of twisted yarn. In its broadest aspect the instant invention comprises an improvement inthe take-up means In twisting and winding devices as heretofore commonly constructed, the twisted yarn was wound upon 4a bobbin or similar package supported upon a.

gudgeon by means of a cork covered roll or drum which frictionally rotated the bobbin. As is well known in the art, the use of gudgeons presented y many difiiculties including manipulation, misalignment, wearl and maintenance. the cork roll or frame often injured the flanges of the bobbin necessitating extremely high buffing costs, the flange defects also injuring the yarn, thereby reducing the quality thereof. It is, accordingly, an important object of this invention to provide an improved take-up means for a twisting and winding device which will be free from the above mentioned and `other-disadvan tages, and whichwill be simple, eicient and inexpensive inoperation.

Another object of this invention is the provision of a twisting and winding device for producing large -packages of yarn which are perfectly wound both as `to density and traverse and which are free from all trapping.

Still another object of this invention is to provide improved means for winding yarn on a bobbin whereby damage to the flanges of the bobbin is entirely eliminated.

A further object of this invention is the provision of a twisting and winding device which Fig. 3 is a detail view showing the bobbinJ mountings and traverse bars, and

Fig. 4 is a wiring diagram showing the electrical hook-up for the deviceof our invention.

' Like reference numerals indicate like parts.

throughout the several views of the drawings.

Referring to Fig. 1 of the drawings, the reference numeral 5 indicates the framework of an Moreover,

Link-Belt Company catalog No. 700 (1937).

-up-twisting machine of the usual constructionv in which the twisting spindle 6 is. driven by means of an endless belt 'I mounted on a pair of pulleys, one of which (not shown) is driven by a suitable motor 8 (see Fig. 4), the other pulley 9 being an idler. While only one spindle is shown, it isto' be understood that a plurality of spindles are. normally mounted and driven by the endless belt.

The take-up means in accordance with this invention is of the direct driven type and derives its motor power from the same source as the `belt 1 which drives the spindle 6, namely, motor 8 which may be a 'I1/2 H. P., 440 volt 3 phase motor. To this end vthe idler pulley 9 is fixed to a. shaft IIJ, mounted in bearingl I, which shaft forms the input or ingoing shaftof a speed reducer I2. The output or outgoing shaft'I3 of speed reducer I2 drives double sprockets I4 which are connected to double sprockets I5 by means of articulated chain I6. The sprockets I5 are mounted on and drive 'the input or constant speed shaft I1 of a positive, infinitely variable speed transmission I8, known as a P. I. V. gear and is manufactured by the Link-Belt Company. Such `a gear is shown on page 693 of the variable speed unit I8 is so constructed and arranged that changes in speed may be effected at will and while thesame is under load by suitable means provided for this purpose, as will hereinafter be set forth. I

The drive for the take-up means is taken from the output or variable speed shaft I9 of the variable speed unit through a spur gear 2| keyed on said output shaft, which cooperates with idler gears 22 and 23 mounted on an adjustable bracket 24, the idler gear 23 meshing with and rotating /spur gear- 25 which vsupplies the variable speed drive to the main take-up shaft 26 through double sprockets 21 and 28 connected by an articulated chain 29. The spur gear 2| is used as I the twist change gear and may be replaced by spindles'.

a gear of different size where it is desired toA change the twist, as is well understood in the arti The main take-up-shaft"26 supplies the drive for the individual pai-rs of take-up devices of the take-up meansA through a spiral gear 3I, mounted on said shaft 26, which coop-` erates with spiral gear 32 mounted on spindle shaft 32' be understood that there is a spiral gear 3| and a spiral gear 32 for rotating each pair of The take-up means of this invention is mounted on an angle iron cross bar 3'4 extendfor rotating spindles 33.' ItA is to put shaft |9 of the variable -speed unit I8' in the following manner. Thus, spurvgear 2| on said output shaft cooperates with idler gears 36 and 31 which are carried by adjustable brackets 33 and 39, respectively, and spur gear 4|.' The spur gear 4| has attached thereto and' rotates sprocket 42 which through link chain 43 rotates sprocket 44 mounted 'on input shaft 45 of a speed reducer generally indicated by the reference numeral 46. On the output shaft 15a of said reducer is sprocket.15 which drives sprocket 16 through a link chain, thus rotating speed control shaft 35 of l, I. V." unit I8. Thespur gear 4| is used as the denier or time change gear and may be replaced by gears of different size, as is well understood in the art.

In accordance with this invention, automatic switching controls are employed during the operation of the device. These switching controls arel positively connected to the control shaft 35 through sprocket, mounted on said control chain 5|. Fixed to the shaft on which the sprocket 49 is attached is a gear 52 meshing with j shaft, which rotates a sprocket 49 through a link and rotating the spur gear 53. .Rotating intev grally with spur gear '53 are switch actuating devices comprising sectional step cam 54 and mounted in control box 51', which controls the starting take-up spindle speed. Arm 55 actuates a limit switch 58, mounted in control box 58', which controls the reversing point atthe higher speed needed to remove'the slack or back lash in the variable speed unit internal gears. An arm 55 is adapted to actuate limit switch 59, mounted in control box 59', which controls the stopping of the machine at the low finishing spindle speed at the end of each run. The operation of the automatic switching controls will hereinafter be described in greater detail.

Means are provided for automatically resetting the take-up spindle speed from the low finishing speed to the high starting speed. The drive for I this automatic resetting is furnished by an auxiliary 110 volt reversible motor 5| through sprockets 52 and 53 which are connected by a chain 54. The sprocket 53 'rotates a gear 55 which operates a chain ofgears comprising gears 55, 51, 58, 58, 1| and 12. The gear 12 meshes with and rotates a gear 13 mounted on the variable speed vunit control shaft 35. When the reversible motor 5| operates to rotate control shaft 85 in a counter-clockwise direction, the speed of the output shaft I8 of the variable speed unitis increased, and when the control shaft 35 vis rotated clockwise the speed of the output shaft I9 is decreased. These rotational effects are 4provided by the reversible` motor 5| through the gearing connections as given above and a gear 13 and a built-in 2-wa'y clutch 14 mounted on the control shaft 35. The clutch 14 is adapted to release the control shaft. from the positive drive from the speed reducer through the mediumA of sprocket 15 on output shaft 15a 'of the speed reducer, which output shaft is -supported in outboard bearing bracket 15b, and sprocket 15 mounted on control shaft 35, said sprockets 15 and 15 being connected by chain 11. The positive action of the 2-way clutch 14, which may be either of the types shown'or `)age 550 of the Link-Beit Company catalog above mentioned, and gear 13 is not interfered with by virtue of the disengageability of the compounded gearing arrangement -12, said compounded gearing arrangement being mounted on an arm 18 pivotallymounted at 19 and being actuated by interconnected solenoids 8| and 82 through a connecting rod .83 which yis spring loaded as shown at 84.

The operation of the traverse arrangement will now be described. The drive for this traverse arrangement is derived from main take-up shaft 25 on which is mounted a sprocket 85 which rotates a sprocket by means of a chain .81. The sprocket 86 is mounted on the input shaft 88 of a speed reducer 89 on the' output shaft 9| of which is mounted a sprocket 92 which through chain 93 rotates a sprocket 94, the sprocket 94 being adapted to rotate a pinion gear 94' which in turn effects the rotation of Creeper gears 95 and 96 'and a groove cam 91. The

creeper gear 96 and the grooved cam 91 are' is transmitted through cam follower |02 fixed to a rod |02a pivotally mountled in bracket|02b` fixed to the frame 5 and in a slide |03, sliding on arm or shaft |04 also fixed t'o the frame 5. A main traverse bar |05 is attached to and is moved to and fro by said slide |03. The main traverse bar creeper effect to auxiliary traverse bars |06 through pinions |01, which effects the traversing of the yarn |01' from supply package |08 on to the vyarn packages |09 through porcelain thread guides ||0.

To putthis device in operation at the beginning, or after the dofiing period, it beingI assumed that switches and ||2 are closed, the button ||3, or reset button, is pushed which closes a circuit and thus energizes the latching coil ||4 of relay A making contacts a and l)A of said relay LA. Button ||5, or run button, is next pushed thus energizing solenoid m of relay B which makes contacts c' and c of said relay B and also causes the circuit'ofv motor 8 to close` thus starting up said motor 8 and, since the points d are already` in contact, also causes the motor 5| to start up and run in counter-clockwise rotation. A transformer ||5' is provided to step down the voltage in the line to the volts required for motor 5|. The pushing of the run button ||5 also closes the circuit to solenoid 8| thus ener.

gizing said solenoid which causes rod 83 to be pulled down thereby operatively connecting the gear train 65-12 to gear 13 to drive the speed control shaft 35. Therotation of control shaft 35 operates the spur gear 53 and the switch actuating devices mounted thereon. The arm 55 is so positioned on spur gear 53 that it throws limit switch 58 when the yarn packages |09 have reached a predetermined speed of rotation, which toclockwise rotation. This causes the speedy |05 transmits the traverse andr control fshaft 35 to reduce the speed of the output shaft' i9 of the variable speed unit until the limit control cam 54 which has held contacts e--z of limit switch 51 closed for an interval,` to open thus breaking the circuit of motor and solenoid 82. ,engages the gear train 65-12 from gear 13 and clutching arrangement 14 on the speed reduction control shaft 35 as the takeup package speed reaches la predetermined point, namely 405 R. P. M. inthis case. It-should be understood that this automatic' resetting of the take-up package speed may be accomplished at the end This stops the motor 6I and disof a `run instead of at the beginning of a run as set forth herein. In addition, said resetting may be` accomplished at the beginning or at the end of a run by other means.

From this p oint, which .is the .initial take-up package speed, the -speed of the output shaft I9 is properly decreased by the drive` from said shaft I9 through the speed reducing unit 46 to control shaft 35 until, when the take-up package reaches a speed of 257 R. P. M., the arm 5B actuates the limit switch- 59 which makes contactl through contact b` of relay A energizes unlatching coils i I1 and H8 of relays C and A, respectively, thus breaking contact e of relay C and contacts a and b of relay A. The breaking of contact a of relay A to the 110 volt control of the magnetic switch in relay B, governing the motor 8, automatically stops the machine at the end of each run.

The machine may be stopped at any time dur-v ing the run for yarn inspection or for any other reason by pushing stop button H9 vand may be veillance bythe operative is `necessary after the first few minutes of the run.

Our device stops itself automatically at the end of the run and this is an important feature of the instant invention. Since the device of applicants invention is entirely automatic and needs rio-attention during the run, production per operative is greatly increased. Moreover, the machine of the instant invention produces yarn of the highest quality, of uniform length on perfectly traversed ideal unwinding packages. We have found that the final useable quantity vof product per spindle on the device of the instant invention is much higher than that of twisting and winding machines heretofore employed.` This` is due to the fact that the necessity for operatives to clean oi at the waste spindle the outer layers of yarn on the full onpartly full take-up packages is eliminated. This is not necessary on the device of the instant invention, first', because the outer layers cannot be' damaged by running as on the cork rolls and, second, be-

cause thev bad ends and tails next to the barrel on the spinning bobbin supply packages are not restarted to continue the run by pushing run twisted up and run olf on to the take-up package butare left onv the supply package tobe reeled oif at high speed later. i y

We have also found that the device of the in-` stant invention produces` packages of yarn having a build and density which is equal to or su-l perior tothe large packages of yarn, i. e., those containing 2 poundsl or more of yarn, heretofore produced. The twist on the yarn is exceptionF ally uniform, having a variation of less than .3 turn per inch, Whereas packages of yarn produced on the prior twisting and winding devices have the variation of from .4 to .6 turn per inch. l

It is to be understood that the foregoing detailed description and drawing is given merely by way of illustration and that many variations may be made therein without departing from the proved traverse arrangement, gives perfectly,4

wound packages, both as to density and traverse, which are free from all trapping of yarn.

By the use of the device of the instant invention, the expensive item of injuries to the iianges of the bobbins is substantially eliminated. This means not only that the extremely high buiilng costs on these bobbins will no longer be an item, but` also that these bobbins will last longer and that the yarn wound thereon will not be in-` jured in quality by reason of ange defects caused on the contact driven units by virtue of` the hazardous arrangement ofthe fingers and cork rolls or drums. The actual, procedure of doiiing and putting ends up is somewhat different but also somewhat superior since the device lends itself ideally to squad doiling, with the machine idle, which isthe modern practice. With dofllng accomplished, nothing is `required of the operative but to push the starting switch button, whereupon the machine automatically changes from finishing spindle speed to a starting take-up spindle speed. No attention or surspirit of our invention.

Having described our invention, what we desire to secure by Letters Patent is:

1. Apparatus forv winding textile packages, A

comprising a spindle for holding and rotating a package to be wound, variable-speed; driving means for rotating said spindle, control means in connection with said driving means for varying the speed of said spindle, and a positive driving connection between `said spindle and said controlmeans whereby said speed is held in predetermined relation to the number of revolutions already executed by said spindle in the winding of said package.

2. Apparatus for `winding textile packages, comprising a. spindle for holding and rotating a package to be wound, variable-speed driving means for rotating said spindle, control means in connection with said driving means for varying the speed of said spindle, a positive driving connection between said spindle and vsaid control `means whereby said speed is held in predetermined relation to the number of revolutions already executed by said spindle in the winding of said package, and means independent of the drive to said spindle for driving said control means i in the interval between the winding of successive packages in a direction opposite to that in which it is driven by said positive driving con-I nection so as to adjust said variable-speed driving means to give the requisite speed to the spindle at the beginning of the winding of the next package.

3. Apparatus for winding textile packages,`

reached said position.

comprising a spindle for holding and rotating a package to be wound, variable-speed driving means for rotating said spindle. control means in connection with said driving means for varying the speed of said spindle, a positive driving connection between said spindle and said control means whereby said speed is held in predetermined relation to the number of revolutions already executed by said spindle in the winding oi' said package, and means independent of 'the drive to said spindle for driving said control means in the interval between the winding of successive packages, ilrst for a certain `amount in the opposite direction to, and then for a smaller amount in the same direction as it is driven by said positive driving connection so as to said variable shaft and means comprising a pivotally mounted gear train for connecting said reversible motor to and disconnecting the adjust said variable-speed driving means to give the requisite speed to the spindle at the beginning of the winding of the next package and to take up any backlash in said control means.

4. Apparatus for winding textile packages, comprising a spindle for holding and rotating a package to be wound, variable-speed driving means for rotating said spindle, control means in connection with said driving means for Varying the-speed of said spindle. a positive driving connection between said spindle and said control means whereby said speed is held in predetermined relation to the number of revolutions al- -ready executed by said spindle in the winding of said package, and a reversible motor adapted to' be usedalternate1y with said positive driving connection for driving said control means in theinterval between the winding of successive packages, iirst for a certain amount in the opposite direction to, and then for a smaller amount in the same direction as it is driven by said positive -driving connection so as to adjust said variable-speed driving means to give the requisite speed to the spindle at the beginning of the winding of the next package and to take up any backlash in said control means.

5. Apparatus for winding textile packages, comprising a spindle for holding and rotating a package to be Wound. variable-speed driving means for rotating said spindle, control means in connection with said driving means for varying .the speed of said spindle, a positive driving connectionv between said spindle and said control means whereby said speed is held in predetermined relation to the number of revolutions d already executed by said spindle in the winding,

of said package, a reversible motor adapted to be used alternately with said positive driving connection for driving said control means and automatic means, controlled by the position of said control means for stopping the rotation of said spindle when it has reached a predetermined speed and simultaneously changing said control means from said positive driving connection to said reversible motor, for reversing said reversible motor after it has driven said control means beyond the position required for beginning the winding of the next package, and for stopping the said reversible motor when it has 6. Apparatus for winding textile packages, comprising a spindle for holding and rotating the package to be wound and means for vrotating said spindle at a varying speed,vsaid means including a variable speed transmission having a constant speed shaft, a variable speed shaft and 4a control shaft for controlling the speed of said again same from said control shaft.

. "I. Apparatus for" winding textile packages, comprising a spindle for holding and rotating the package to be wound and means for rotating said spindle at a varying speed, said means including a-variable speed transmission having a constant speed shaft, a variable speed shaft and a control shaft for controlling the speed of said variable speed shaft, a spur gear mounted on .said control shaft, a reversible motor for operating said control shaft to change the speed of said variable speed shaft, a pivotally mounted train of gears connecting said reversible motor and said spur gear and means for moving said t' train of gears into and out of mesh with said prising a spindle lfor holding and rotating the package to be wound and means for rotating said spindle at a varying speed, said means including a variable speed transmission having a constant speed shaft, a variable speed shaft and a control shaft for controlling the speed of said variable speed shaft, a spur gear mounted on said control shaft, a reversible motor for operating said control shaft to change the speed of said variable speed shaft, a, pivotally mounted train of gears connecting said reversible motor and said spur gear, and means comprising, solenoids and limit switches for controlling said solenoids, for moving said train oi' gears into and out of mesh with said spur gear.

9. Apparatus for winding textile packages comprising a spindle for vholding and rotating the package to be wound and means for rotating said spindle at a varying speed, said means including a variable speed ytransmission having a constant speed shaft, a. variable speed shaft and a control shaft for controlling the speed of said variable speed shaft, a speed reducer and a reversible motorconnected to said control' shaft for changing the speed of said variable speed shaft and means for disconnecting said reversible motor from said control shaft and for operatively connecting said speed reducer thereto.

10. Apparatus for winding textile packages, comprising a spindle for holding and rotating the package to be wound and means for rotating' said spindle at a varying speed, said means including a variable speed transmission having a constant speed shaft, a variable speed shaft and a control shaft for controlling the speed of said variable speed shaft, a speed reducer and a reversible motor connected to saidcontrol shaft for changing the speed of said variable speed shaft and means for disconnecting said reversible motor from said control shaft and for operatively connecting said speed reducer thereto, said disconnecting means comprising a 2-way clutch mounted on said control shaft.

11. Apparatus for winding textile packages, comprising a spindle for holding and rotating the package to be wound, a variable speed transvmission for rotating -said spindle at a varying speed, said variable speed transmission having a drivenconstant speed shaft, a variable speed shaft for driving said spindle and a control shaft v for-controlling the speed' of the variable speed shaft, a 2-way clutch attached to said control shaft, a speed reducer and a reversible motor connected to said control shaft for rotating the same to change the output speed of said variable 'assenso l speed shaft, means for disconnecting said re versitle motor'rom said Z-Way clutch whereby seid speed reducer operates said control shaft to reoiaee the speed of saidl variable speed .shaft et o predetermined varying rate.

Apparatus for Winding textile packages, e comprising spindle for holding and rotating the be Wound, a variable speed transmis-` siori i'or rotating said spindle at ata/owing Speed,

said Varia/,ile speed transmission having a 'driveny 10 constant speed shaft, a `variable speed shaft for driving said spindleV and a control shaft for con-4 trolling the speed ont the variable speed shaft, a eway clutch attached to vsaid control shaft, a

speed reducer and a reversible motor connected 15 to said control shaftvfor rotating the same to cleanse the output speed of said variable speed straft, means including solenoids and limit switches for operating the same, means for disconnecting said reversible motor from said 2-` 20 way clutch whereby said speed reducer operates said control shaft to reduce the speed of said Vorlable speed shaft at a predetermined varying rate. Y

1'3. Apparatus for Winding textile packages, comprising a spindle for holding and rotating the package to be wound, a variable speed transmission for rotating said spindle at a varying speed, said variablespeed transmission having -a driven constant speed shaft, a variable speed shaft for driving said spindle and a. control shaft for controlling the speed of the variable speed shaft, a 2-way clutch attached to said control shaft, a speed reducer and a reversible motor connected to said control shaft for rototing the same to change the'output speed of said variable speed shaft, means for disconnecting said reversible motor from said 2-way clutch whereby said speed reducer operates said control shaft to reduce thefspeed ot said variable speed shaft at a predetermined rate and means for stopping the rotation of'said spindle when the speed thereof has reacheda predetermined rate.

v WEILIAM J. ELVIN. RAYMOND'D. REEL. ELMER R. STAHL.

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