US2674778A - Textile warping machine - Google Patents

Description

April 13, 1954 J. M. MORRISON ET Al. 2,674,778

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheet 1 E i E se Inventors Hanru-:w Rnewrsou., Tom-r LJ'LmRRN au Amm H-H. PuR-van gmk?) 1- l Attorneys April 13, 1954 .1. M. MORRISON ET AL 2,674,778

TEXTILE WARPING MACHINE Filed oct. 8, 1951 18 Sheets-Sheet 2 1nventor$ ANDREW RBHTSON, JHN L-M- MRRS 0N AND ALLEN w. H PORTER By W7 MMQFMA Attorneys April 13, 1954 '.J. Q M. MORRISON ET AL 2,674,778

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheet 5 Inventors Amann-4 Rohelsmq, Tom L"\. Hannan mw num w. fvorcrca April .13, 1954 J. M. MORRISON EEAL 2,674,778

TEXTILE wARPING MACHINE Filed Oct. 8, 1951 18 Sheets--Sheeil 4 F/G3. H4

Inventors Ancu Romanen, 3mm L M. Magma @Nv aus. wa. vom-ek.

By my VMM f /Mma Attorneys April 13, 1954 Filed Oct. 8, 1951 J. L. M. MORRISON ETAL TEXTILE WARPING MACHINE 18 Sheeis-Sheet 5 In venters Amiuw Runen-fsm :aan pm. Haumann April 13, 1954 J. L. M. MORRISON ETAL 2,674,778

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheet 6 Inventors www Tueurs, 2mm LM. Mmmm 01A hun w-fPom-ER By rudy Yo-eaawbc 1- i324, Attorneys April 13, 1954 J. L.. M. MoRRlsoN ETAL 2,674,778

v TEXTILE WARPING MACHINE Filed Oct. 8, 1951 f 18 Sheets-Sheet 7 'MINIl o; o

Inventors Annmsw 'oBEm'm-JN Imm. mamsnA QN; Ahum w. wom-ER B A M, vin@ 1 @am Attorneys Apnl 13, 1954 J. L.. M. MORRISON ET AL 2,674,773

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheet 8 I I I I I I I I l I Inventors y E MM 1- dni my? Atiorneys April 13, 1954 Filed OCT.. 8, 1951 J. L. M. MORRISON ET AL TEXTILE WARPING MACHINE ANDRER ROBERTNN BND 18 Sheets-Sheet 9 Attorneys April 13, 1954 J. L. M. MORRISON ET AL 2,674,778

TEXTILE WARPING MACHINE v Filed Oct. 8, 1951 18 Sheets-Sheet l0 I n venters ANDREW RoBY-RTsoN :una L. n MoRmSeN u g u., T-o TER Attorney!)` April 13, 1954 J. L. M. MORRISON ETAL 2,674,778

TEXTILE WARPING MACHINE.

Filed Oct. B, 1951 18 Sheets-Sheet ll /O/ /OO Inventors April 13, 1954 J. L. M. MORRISON ET AL 2,674,778r

TEXTILE WARPING MACHINE 18 Sheets-Sheet l2 Filed 0G12. 8, 1951 April 13, l954 J. L.. M. MORRISON ET AL TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 sheets-sheet 13 mdb RU- M1 Inventors ANDREW Rouen-rse, -zsnum l..e'\. Noswson B my J Yfafam-a fr A tiorneys April 13, 1954 J. l.. M. MORRISON ET AL 2,674,778

TEXTILE WARPING MACHINE 18 Sheets-Sheet 14 Filed Oct. 8, 1951 24 ,e //8 //4 //4A 23 84B Inventors 31mm NommsoN www: Romewrsom,

y\ Attorneys 7 April 13, 1954 f1. L. M. MORRISON ET AL 2,674,778

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheet 15 Inventors A n bnsw msnm o N. .mm LM. norm lsou AND ILLEN vul-'PORTER A Attorneys April 13, 1954 J. l.. M. MORRISON ET AL v 2,674,778

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheet 16 Inventors Amuvw Russin-sm, *Som* L. m. MoRNseN Attorney? Apnl 13, 1954 J. .'M. MORRISON ET AL 2,674,778

TEXTILE WARPING MACHINE Filed Oct. 8, 1951 18 Sheets-Sheell 17 Inventors Amami onemsnrx, Smm LM. Mosman mn Lum v1.9.. nn-ER By m7, VM mw Attorneys' April 13, 1954 Filed Oct. 8, 1951 J. L. M. MORRISON ET AL TEXTILE WARPING MACHINE 18 Sheets-Sheet 18 l' BY U l/MM ATTORNEYS.

Patented Apr. 13, 1954 E TEXTILE WARPING MACHINE John Lamb Murray Morrison and Andrew Robertson, Bristol, and Allan William Henry Porter, Burton-on-Trent, England, assignors to F. N. F. Limited, Burton-on-Trent, England, a British Company Application October 8, 1951, Serial No. 250,316

Claims priority, application Great Britain October 9, 1950 21 Claims. l

This invention relates to warping machines.

such as warping machines for winding warp' beams for use in warp knitting machines.

In winding warp beams, the warps pass from the creel over tension rollers and then through a reed, and are then wound on a beam orbobbin mounted horizontally between spindles through which the beam is driven. As the process continues, the diameter of the warp on the beam increases, so that the direction of the threads as they pass through the reed changes, unless the height of the winding spindles is altered progressively during the process. Also, if the speed of the spindles is kept constant, the winding rate will progressively increase, and it is, therefore, desirable that, throughout the process, the speed of rotation of the spindles should be progressively reduced if the beam is to be wound evenly and at constant tension. In winding beams of large diameter, the increase in diameter of the beam is so great that the operator finds great diiculty in watching the warp yarns throughout the process, unless some arrangement is made to keep their height as they pass through the reed substantially constant. In addition, the weight of thread wound on to a beam of, say, thirty-six inches diameter when fully wound, is such that the braking eiort necessary to arrest the beam rapidly when fully wound is so much greater than that required to produce a similar action at the beginning of winding, that it is necessary to provide an arrangement for varying the braking eiort as the diameter of the beam increases.

The present invention provides an improved warping machine having an arrangement to ensure a constant warp speed, and adapted to handle beams of Very large diameter when fully wound. The operation of setting the beam inthe machine and removing it when wound is made simple and easy and the machine automatically adjusts the height of the beam during winding so that the path of the warp threads through the reed remains substantially constant, while the mechanism for applying braking to the beam is varied so that the braking effort is kept consonant with the inertia of the mass of Warp on the beam at any moment. Furthermore, the tension rollers are provided with arrangements so that they are also braked when the machine is stopped and, in addition, may be adjustably braked during the running of the machine in a Way which allows the yarn to be drawn oli the creel under minimum tension, but permits,4 the desired amount of tension to be applied to the yarn before it reaches the reed of the beam. The

tension rollers are arranged so as to permit very easy and simple threading of this part of the mechanism. The machine is also equipped with safety devices which include a beam guard rail, which can be turned out of the way for loading or manipulating the beam or the yarns, in which position it is impossible to start the machine.v

According to the present invention, the beam is mounted horizontally between spindles, one at least of which is power-driven, which are carried by arms which can be raised and lowered by power-driven means permitting the arms to be lowered so that the beam may be set in the machine at oor height and then raised to the correct height for Winding. Provision is made for the control of the means for raising the arms then to be transferred to a nger or feeler which rests lightly on the upper surface of part of the k ping the beam spindles and the raising and low- Y ering of the arms causes a follower to move over a cam surface to vary the braking eiort applicable tothe spindles according to the vdiameter of the warp on the beam. To this end, a brake may be operated by the release of an arm loaded by a spring the stress in which is varied by a cam iixed to the machine frame and engaged by a follower connected to the spring and carried by the beam supporting arms, as these arms are raised and lowered. The yarn tension vrollers drive a brake drum to which a brake is .applied when the nia-chine is stopped, and` this drum may be associated with a further brake drum to which an adjustable constant braking eort is applied to impart tension to the Warp.

A speedometer mechanism is driven by a roller caused to rotate by the passage of the warp yarns from the creel to the beams, so that its speed is proportional to the speed of the warp yarns. The speedometer pointer moves over a dial which is provided with a hand-set pointer, whichr may be set by theoperator to the maximum speed at which it is desired the yarn should travel. The

two pointers are provided With contacts which are closed when the speedometer pointer reaches the hand-set pointer completing a circuit which 3 speed reaches the maximum desirable, the motor speed is reduced slightly with the result that the yarn speed remains substantially constant.

An example or" a warping machine according to the invention is illustrated in the accompanying drawings in which:

Figure 1 is a side elevation of the complete machine;

Figures 2 and 2A are a rear elevation as seen from the left-hand in Figure l;

Figures 3 and 3A are a front elevation as seen from the right-hand in Figure 1;

Figures 4 and 4A are a plan view or" the ma-y chine shown in Figure 1;

Figure 5 is a detail View in part section or the left-hand beam spindle as seen in Figures 3 and 4;

Figure 6 is a detail of the screw jacks;

Figure 7 is a detail of the arrangement for providing variable braking effort;

Figures 8 and 9 show details of the yarn tensioning arrangement;

Figure 10 shows the warp tensioning arrangement and the beam level control;

Figure 11 is a detail of the yardage counter and beam level control;

Figure 12 is a side view of the arrangement for measuring and controlling Warp speed;

Figure 13 is a view of the apparatus shown in Figure 12 as seen from the right in that ligure;

Figure 14 is a view of the dial of the apparatus shown in Figures 12 and 13;

Figure 15 is a detail showing the hub of the right-hand arm, as seen in Figures 3 and 4, illusm trating the arrangement for limiting the movement of the arms;

Figure 16 is a detail showing the guard rail and hand control arrangements;

Figure 17 is a side elevation of the right-hand part of Figure 16; and

Figure 18 is a diagram showing the electrical circuits.

Referring to Figures 1 to 4, the beam I is carried between spindles 2 and 3, journalled at the ends of a pair of tubular arms 4 and 5 having hubs I and 8 respectively which are pivotally mounted on the base 6 of the machine. The arms 4 and 5 have housings 9 for trunnions which are engaged by the screw jacks i which are driven by gearing in the feet I i so as to raise and lower the arms.

The beam i is driven by a belt drive I2 in a guard I3 from pulleys I4 on a shaft passing through the hub 'l of the arm 4 and driven by the main variable speed motor I through a main clutch i6 operated by a solenoid iBA and a gear box II.

The warp threads are drawn from a conventional creel, as at i8 in Figure 1, betweenv guide bars I9, 20, through the teeth of a comb or sley bar 25, over a tension roller 2 I, beneath a tension roller 22, and over a tension roller 23. The drive to the yarn speed indicator and controller 24 is taken from the roller 2 i. The yarns then pass through the droppers 25A of a conventional stop motion (see Figures and 18) and a deflector rod |64, whereafter the yarns 26 pass through a second comb or sley bar 2l, which is adjustable in the direction of the warp threads and also laterally by a micrometer adjustment 21A, and then to the beam I. As seen in Figures 1, 4 and 4A, the warp height detector 28 and yardage counter 29 are mounted on a pillar 30 carried by one of a pair of forwardly projecting brackets 3I and 32 which are mounted above 4 the motor housing 33 and also serve to support the sley bar 21.

As seen in Figure 5, the arm 4 carries a cylindrical housing 34 in which a sleeve 35, to which is connected a splined ring 40, is supported in ball-bearings 36 and roller-bearings 3'1. This sleeve carries a brake drum 38 to the rim of which a double V pulley 39 is secured for the belt drive I2. The ring 40 is splined internally to engage corresponding splines 4I on the spindle 2 which passes through the centre of the sleeve 35, thus being driven by the splines although free to move axially. The outer end of the spindle 2 is threaded at 42 and is engaged by an internally threaded hand-wheel 43, the thrust of the spindle being transmitted to the hand-wheel and thence by a ring 44 to a retaining ring l5 secured to the brake drum 33. By turning the handwheel, the spindle 2 may be adjusted axially while the pulley 39 is stationary. The inner end of the spindle 2 is provided with a spigot 46 to centre the beam I and a flange 4l to provide a locating face for the end of the beam. A driving dog 48 is provided on the face of the ilange 41, so that the beam I is positively driven. The arrange ment of the bearings and adjustment for the spindle 3 of the arm 5 are similarto those shown in Figure 5, except that the driving pulley 3S is omitted.

As seen in Figure 6, the jack Iii for the arm 4 works in the threaded trunnion block 49, mounted in bearings 5I) in a cylindrical housing 9 about two thirds of the way along the arm 4. The lower end of the jack lil is supported by a roller thrust bearing 52, so that the weight o the beam i and arm 4 is transmitted through this bearing to the strong toe II. The jack is driven from a bevel gear 53 keyed to the lower end of the jack 0 and meshing with a bevel gear 54 keyed to a horizontal transverse shaft 55 which carries a spur wheel 56. This spur wheel is driven, as seen in Figure 1, through a reduction gear train 51, 5S from a pinion 59 on the armature shaft of an electric motor 6B (see Figure 3). The jack II! for the arm 5 is supported in a similar Way and driven by similar bevel gears from a shaft 6i which is driven from the shaft 55 by a torque tube 62 (see Figures 3 and 6). The motor 60 is reversible so that the arms 4 and 5 with their loads can be raised and lowered.

The brakes for each of the spindles 2 and 3 are of the internally expanding Girling type operated by the mechanism shown in Figure 4 and Figure 7, which latter iigure shows a side view of the linkage for the brake of the spindle 2. The brake is applied by withdrawing the plunger 63 from the brake mechanism housed Within the brake drum 33. The plunger 63 is pivoted to the bell-crank 64, secured to a shaft 65, and having its other arm pivotally connected by a link 66 to a rocker 6i which is pivotally supported at 68 by a spring loaded plunger GQ sliding in a cylinder iii, whichis carriedby a bracket il projecting from the hub i of the arm 4 in the opposite direction to the arm li. The bracket 'il is provided with a number of holes 'i2 for a fulcrum pin i3 against which the rocker 61 is pressed by the action of the spring 14, the other end of which bears against a plunger i5 which rides on a cam face i3 fastened to the framework of the machine. Thus, as the arms are raised and lowered, the plunger i5 moves over the cam face 'i6 causing the compression of the spring I4 to vary with consequent varia-A

Images