US2663067A

US2663067A - Apparatus for winding

Info

Publication number: US2663067A
Application number: US94118A
Authority: US
Inventors: Robert H Roughsedge; Meder Arthur
Original assignee: Celanese Corp
Current assignee: Celanese Corp
Priority date: 1949-05-19
Filing date: 1949-05-19
Publication date: 1953-12-22
Anticipated expiration: 1970-12-22

Description

Dec. 22, 1953 R. H. ROUGHSEDGE ETAL 2,663,067

APPARATUS FOR WINDING 3 Sheets-Sheet 1 Filed May 19, 1949 5% .RE 05 E THR. c N M W E R W3 m .M T

Dec. 22; 1 953 R. H. ROUGII-ISEDGE ETAL 2,663,067

APPARATUS FOR WINDING s Sheets-Sheet 2 Filed May 19, 1949 Dec. 22, 1953 R. H. ROUGHSEDGE my. 2,663,067

APPARATUS FOR WINDING 3 Sheets-Sheet 3 Filed May 19, 1949 INVENTORS ROBERT H. RQUGHSEDGE.

ARTHUR MEDER.

ATTORNEYS.

Patented Dec. 22, 1953 APPARATUS FOR WINDING Robert H. Roughsedge, Ramsey, and Arthur Meder, Carlstadt, N. J., assignors to Celanese Corporation of America, New York, N. Y., a

corporation of Delaware 7 Application May 19, 1949, Seria1No. 94,118

Claims.

This invention relates to textile apparatus and relates more particularly to warpers.

As a preliminary step in the weaving and knit ting of textile fabrics, at least a portion of the yarns which go into said fabrics are drawn from a plurality of yarn packages and are woundin substantially parallel relation onto a positively driven warp beam mounted in a warper. During this operation, it is essential that the winding on the warp beam remain level since, if any high spots develop in said winding a larger amount of yarn will be drawn from certain of the yarnpackages as comparedwith others for each revolution of the warp beam. Non-uniformity in the windings during the formation of the warp will result in a corresponding non-uniformity in the let-off of the yarns from the warp beam during the weaving and knitting, with the production of defective woven or knitted fabrics. To assist in maintaining a level winding on the warp beam,

it has heretofore been thepractice to provide a press roll in the warper, which press roll bears against the Winding and serves to flatten out any high'spots therein. In order for the press roll to function properly, the pressure which it exerts against the winding on thewarp beam must remain substantially constant during the entire warping'operation even though the diameter of the winding increases. The mechanisms hitherto employed for urging the press roll against the winding on the Warp beam have failed to maintain this constant pressure, particularly at high warping speeds, with, the result that defective warps were produced, making it necessary to limit the maximum warping speed.

It is an important object of this invention to provide a warper which will be free from the fore- In accordance with this invention a warper,

includin'g'a press roll and means for engaging a warp beam, is provided with fluid operated means for urging the press roll against the winding on a warp beam mounted in said warper. We have found that by employing fluid operated means for this purpose, the pressure which the press roll exerts against the winding may be maintained substantially constant even at high warping speeds and even though the diameter of the winding increases during the warping operation. As a result, more uniform warps may be produced and the speed of warping may .be increased above the previous maximum. The warper of this invention is also provided with fluid operated means for loading and unloading warp beams therefrom, whereby this operation may be carried out more rapidly and with greater safety than has hitherto been achieved with the manual or mechanical means employed for Fig. 2 is a side elevational view on an enlarged scale, of the warper shown in Fig. 1,

Fig. 3 is a diagrammatic view of thefiuid operated circuit for urging the press roll against the wiidings on awarp beam mounted in the warper, an

' Fig. 4 is a diagrammatic view of the fluid operated circuit for loading and unloading the warp beams.

Like reference numerals indicate like parts throughout the several views of the drawings.

Referring now to the drawings, the reference numerals I I and I2 designate warper frame members, each having thereon a bearing member such as bosses I3 and I4 in which shafts? and 16 respectively are journalled. Hubs I1 and I8 are mounted on the shaft I5 on opposite sides of the frame member II and are joined by webs I9 and 2I to a sleeve 22, which is closed at one end with a plate 23. Similarly, hubs E i and 25 are mounted on the shaft I6 on opposite sides of the frame member I2 and are joined by webs 26 and 21 to asleeve 28, which is closed at one end with'a plate 29. A

A shaft 3 I, having a hand wheel 32 fastened to one end thereof, is mounted for free rotation in the plate 23 and has its other end in threaded engagement with a core 33 slidably mounted the sleeve 22. The core 33 has a shaft 34 mounted axially thereof, which shaft 34 is journalled for free rotation in a roller bearing 35. Fastened to the shaft 34 is a plate 36 carrying driving pins 31 which engage flange 38 of a warp beam, indicated generally by reference numeral 39, to drive thev same. In addition to the flange 38, the warp beam 39 comprises a flange 4|, between which flanges is mounted a barrel 42 upon which ,a warp 143 is wound.

By rotating the hand wheel 32, the core 33 may d be moved longitudinally of the sleeve 22, carrying the driving pins 31 into and out of engagement with the flange 38. To drive the warp beam 39, a gear 44 is fastened to the shaft 34 adjacent to the plate 36. The gear 44 meshes with a gear 45 that is fastened to one end of the shaft I and is driven through a pulley 45 fastened to the other end of the shaft I5 by means of a motor and V-belt drive (not shown). The gear 45 is wider than the gear 44 so as to keep said gears fully in mesh as the core 33 is moved longitudinally of the sleeve 22. g

The plate 29, which closes the sleeve 28, has a shaft 41 mounted for free rotation therein, which shaft 41 has a handwheel 48 fastened to one end thereof and has its other end in threaded engagement with a core 49 that is slidably mounted in the sleeve 28. A shaft 5| journalled for free rotation in bearings 52 and 53 is mounted axially of the core 49 and has aplug 54 fastened to the eh'dth'ereof. Byoperatin'g the handwheel 48, the plug 54 may be brought into engagement with the flange 4| of the warp beam 39 for rotation therewith.

To. permit the warp beam 39 to be stopped quickly, there is provided a brake assembly indicated generally by reference numeral 55; The brake assembly 55 comprises a brake drum 55 fastened to the plug 54 for rotation therewith, and expansiblebrake shoes 51 carried by a stationary plate 58 fastened to the core49. By expanding the brake shoes 51 into contact with the brake drum59; a braking force will be imposedu'pon the warp beam 39 to stop the same.

To raise and lower the. warp beam 39, there is provided'a fluid operated cylinder 59, one end of which is pivot'ally fastened to a bracket BI mounted on the frame member I2. The fluid operated cylinder 59Yhas a shaft 52 extending therefrom, which shaft is fastened .by means of a pin 63 to the lower end'of a crank arm 54, the upper end of which is fastened to the hub 24. As the shaft 52 is moved back. andforth by the fluid operated cylinder 59. the crank arm 64 will rotate the hub 24 about the shaft lli,v raising or lowering the sleeve 28 andthe plug 54 carried thereby, The rotation of the hub 24 is also rans it e hrousht e hu 25 n a a e ment 65 fastened thereto, to a gear 65 keyed to a shaft GI Whichis journalled for rotation in bosses 68; and 99 .on the frame members II and I2; respectively. As the shaft 91 rotates, its mot on st n itte hr u h a gear?! keyed thereto; to a gear segment 12 fastened to the hub ifi, rotating said hub about the shaft I5, raising and lowering the sleeve 22 and the driving pins 3'I carried thereby. The motion of the plug- 54 and driving pins 31 .serves to raise and lower the warp beam 39 engaged therebetween.-

The .warp beam 39 is positioned properly at the upper limit of its travel by s'tops "I3 and I4 on the sleeves 22 and 28, which strike the frame members [I and I2. To hold the warp beam 39 at its uppermost position securely, the stops I3 and 14' are provided with lips I5 and 16, which are eng'agedby clamps 11 andlB pivotally mounted on bolts 19' and ill and provided with clamping screws 82 and83. The gears 44 and 45 remain in mesh as the warp beam 39 is raised and lowered, since the shaft I5 serves as a common axisfor both the gear 45 and the sleeve 22 carrying the gear 44.

Positioned between the flanges 38 and 4'I of the warp beam 39 is a press roll 84, which is mounted for free rotation byme'ans ofbolts 85 4 and 86 on brackets 8'! and 88 keyed to a shaft 89. The ends of the shaft 99 are fastened in clamps 9| and 92 at the upper ends of

crank arms

93 and 94, whose lower ends are pivotally mounted on bolts and 99 extending through bosses 9! and 98 in the frame members I! and i2. The assembly supporting the press roll 89' is made more rigid by means of a shaft 99 which, like the shaft 89, is fastened in the clamps SI and 92. The press roll 84 is urged against the warp beam 39 by means of fluid operated cylinders I9! and IIl2spivotally fastened to brackets H33 and MIA-mounted on the frame members II and I2. The fluid operated cylinders HM and I92 are .provided with shafts I95 and E99 extending therefrom, which shafts are pivotally fastened to the crank

arms

93 and 94 through blocks I9! and I99.

When the rotation of the Warp beam 39 is stopped by the brake assembly 55, it is necessary to stop the rotation of the press roll 94 simultaneously therewith, since the-continued rotation of the press roll I34 will abrade and damage the yarn; To stop the press roll 94; there is provided a brake assembly, indicated generally by reference numeral I99; The brake assembly I99 comprises a brake drum III mounted internally of the press roll 84 and expansible brake bands H2 positioned internally of the brake drum III and fastened to a stationary plate I I3 carried by the bracket 89. A tachometer H4; which measures the speed of the press roll 94, is mounted on the bracket 8"! and is driven from said press roll through gears H5 and H6.

To operate the fluid operated cylinders HM and I92'in order to urge the press roll 89 against the warp beam-39, air or other fluid under pressure is passed from a conduit II'i through a pressure reducing valve II9'into a conduit H9 provided with a pressure gauge lZI". conduit H9, the air passes through a four-way valve I22 to a' conduit I23 and through a pressure relief valve I24; which is set to permit the escape of air from the conduit I23'at a pressure slightly higher'than that of the incoming air as, determined by the pressure reducing valve H8. The air then flows through throttling valves I25 and I29 into one end of the fluid'operated" cyl-- inders I9! and H32 and acts on pistons I2? and I28 therein to urge said pistons and'the shafts I95 and I95 connected thereto forward. As the pistons I21 and I29 move forward, air is forced from the other end of the fluid operated cylinders IIlI' and I02 into, aconduit I29 through throttling valves I'3'I and I32; which, byc'ontrolling the rate of flow of the air from said fluid operated cylinders, limit the maximum speed at which the press roll 84 can be brought into contact with the warp beam 39 to prevent damage thereto. From' the conduit I29, the air discharges to the atmosphere through the four-way valve I22; As a winding of increasing diameter builds up on the warp beam 39, the press roll 94 will force the shafts I95 andI'95 and the pistons iZTa'nd I28 back into the fluid operated cylinders Ifi'I and I92 increasing the pressure of the air therein. Thisexcess of pressure will be relieved by the escape of air through the pressure relieve valve I24", thereby maintaining a substantially constant pressure on the pistons [21- and I28 and on the press roll 34. To draw the press roll 84 back from the warp beam 39, the four-Way valve I22 is turned through a right angle to connect the air -supply conduit I I9t0 the conduit I29; and to connect the conduit I23 to the atmosphere. Air under pressure will then flow from the con- From the duit I I9 through the conduit I29 and the throttling valves I3I and I32 into the fluid operated cylinders IOI and I92 at the under side of the pistons I21 and I28. Simultaneously, air will be forced from the other side of the pistons I21 and I28 into the conduit I23 through the throttling valves I25 and I26, and will discharge to the atmosphere through the four-way valve I22 as the press rollM moves away from the warp beam 39.

For raising the warp'beam 39, air or other fluid under pressure is passed from a conduit I33 through a pressure reducing valve I34 into a conduit I35. From the conduit I35, the air is led by means of a four-way valve I36 into a conduit I37, and after flowing through a throttling valve I38, enters one end of the fluid'operated cylinder 59 forcing a piston I39 and the shaft 62 connected thereto forward. Simultaneously, air will exhaust from the other end of the fluid operated cylinder 59 into a conduit I49 through a throttling valve MI, which controls the rate of flow of the air from said fluid operated cylinder to limit the maximum speed of movement of the warp beam 39 to prevent damage thereto. From the conduit I49, the air discharges to the atmosphere through the four-way valve I36. For lowering the warp beam 39, the four-way valve I36 is turned through a right angle to connect the air-supply conduit I35 to the conduit I49, and to connect the conduit I31 to the atmosphere. Air under pressure will then flow from the conduit I35 through the conduit I43 and the throttling valve I4I into the fluid operated cylinder 59 at the underside of the piston I39 forcing said piston and the shaft 62 connected thereto backward. Simultaneously, air will exhaust from the fluid operated cylinder 59 into the conduit I31 through the throttling valve I38 and will discharge to the atmosphere through the four-way valve I36 as the warp beam 39 descends.

In operation, an empty warp beam 39 is positioned between the driving pins 31 and the plug 54, and said driving pins and plug are engaged with the flanges 38 and AI of said warp beam by rotating the handwheels 32 and 48. Thereafter, fluid pressure is applied to the fluid operated cylinder 59 to raise the warp beam 39 and said beam is locked in the winding position by means of the clamps I? and E8. The warp 43 is then led from a creel, or other suitable source (not shown), onto the warp beam 39 and the drive started to wind said warp onto the warp beam. Fluid pressure is then applied to the cylinders IOI and I02 to urge the press roll 84 against the winding on the warp beam 39 with a substantially constant pressure, which effectively prevents the development of high spots therein even at warping speeds much higher than those hitherto employed during this operation. As a result more perfect warps may he produced in a substantially shorter period of time. If the winding operation must be stopped at any time because of a broken yarn, or for any other reason, the brake assemblies 55 and I99 are actuated, simultaneously stopping both the warp beam 39 and the press roll 84 preventing abrasion and damage to the yarn. When the winding on the warp beam 39 is complete, the clamps TI and I3 are unlocked and the warp beam is lowered by means of the fluid operated cylinder 59. The handwheels 32 and 48 are then operated to retract the driving pins 31 and plug 54 from the warp beam 39, and said warp beam is removed, at which time the entire cycle is repeated.

While the means for urging the press roll against a warp beam and the means for raising and lowering the warp beam have been described with particular reference to a warper, they may also be employed in other textile apparatus wherein a warp is wound on a warp'beam, and wherein a warp beam is raised and lowered.

It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations maybe made therein without departing from the spirit of our invention.

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

1. Textile apparatus wherein the warp of yarns is wound onto a warp beam, comprising means for supporting said warp beam, means including a train of gears and fluid operated means for moving said gears to raise and lower said warp beam supporting means to and from the winding position of said warpbeam, means for locking said warp beam in said winding position, a press roll adapted to operate against said warp beam for pressing the yarn windingsthereon, and fluid operated means, operatively separate from said means for raising and lowering said warp beam, for moving said press roll toward said warp beam at a predetermined speed and for causing said press roll to efiect a continuous and constant pressure on the yarn windings on said warp beam.

2. Textile apparatus wherein the warp of yarns is wound onto a warp beam, comprising means for supporting said warp beam, means including a train of gears and fluid operated means for moving said gears to raise and lower said warp beam supporting means to and from the winding position or" said warp beam, means for locking said warp beam in said winding position, a press roll adapted to operate against said warp beam for pressing the yarn windings thereon, and fluid operated means, operatively separate from said means for raising and lowering said warp beam, for moving said press roll toward said warp beam at a predetermined speed and for causing said press roll to effect a continuous and constant pressure on the yarn windings on said warp beam, said latter fluid operated means including a cylinder, a piston mounted in said cylinder and operatively connected to the press roll, means for conducting fluid under constant pressure into said cylinder, and means for releasing fluid from said cylinder assaid press roll is forced back by the building up of yarn windings on said warp beam.

3. Textile apparatus wherein the warp of yarns is wound onto a warp beam, comprising means for supporting said warp beam, means including a train of gears and fluid operated means for moving said gears to raise and lower said warp beam supporting means to and from the winding position of said warp beam, means for locking said warp beam in said winding position, a press roll adapted to operate against said warp beam for pressing the yarn windings thereon, and fluid operated means, operatively separate from said means for raising and lowering said warp beam and including throttling valves, for moving said press roll into contact with said warp beam at a predetermined speed and causing said press roll to efiect a continuous and constant pressure on the yarn windings on said warp beam.

4. Textile apparatus wherein the warp of yarns is wound onto a warp beam, comprising means for supporting said warp beam, means including a train of gears and means for moving said gears to raise andlower said warp beam supporting means to and from the winding position of said warp beam, means for locking said warp beams in said winding position, a press roll adapted to operate against said warp beam for pressing the yarn windings thereon, and fluid operated means, operatively separate from said means .for raising and lowering said warp beam, comprising a. cyli-nder, a piston mounted in said cylinder and. operatively connected to the press roll, a source of fluid under pressure, means for conducting said fluid into one end of said cylinder on one side. of said piston so that, said piston moves in a direction to move the press, roll into contact with said Warp beam, means for releasing said fluid from said cylinder to. maintain its pressure constant as said press, roll is forced. back by the building up. of yarn windings on said warp beam so that said press roll effects a continuous. and constant pressure on said warp beam, and means. including a valve for simultaneously connecting the compressed end of said cylinder. to the atmosphere and connecting the opposite end of said cylinder to, said source of fluid pressure to move said press roll away from. said warp beam.

5.. Textile apparatuswherein the warp of yarns is wound onto a warp beam, comprising means for supporting said warp beam, means including a. train. of gears and fluid operated means for moving saidv gears, to raise and lower said warp beam supporting means to and from the Winding position of said warp beam, means for locking said warp beam in said winding position, a press roll adapted to operate against said warp beam tor pressing the yarn windings thereon, and fluid operated, means operatively separate from the means for raising and lowering said warp beam, comprising a cylinder, a piston mounted in said cylinder and operatively connected to the press roll, a source of fluid under pressure, means including a throttle valve for conducting said fluid into one end ofsaid cylinder on one side of said piston so that said piston .moves in a direction to move the press roll into contact with said warp beam, means for releasing said fluid from said cylinder to maintain its pressure constant as said press roll is forced back by the building up of yarn windings on said warp beam so that said. press roll effects a continuous and constant pressure on. said warp beam, means including a valve for simultaneously connecting the compressed end of said cylinder to. the atmosphere and connecting the opposite end of said cylinder to said source of fluid pressure to move said press roll away from said warp beam, and brake means operatively connected to said warp beam supporting means and to said press roll for stopping the rotation of said warp beam and said press roll.

- ROBERT I-I. ROUGHSEDGE.

ARTHUR MEDER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,196,000 Richardson Apr. 2, 1940 2,382,760 Wiggermann "Aug. 14, 1945 2,398,232 Lambach Apr. 9, 1946 2,450,4l31 Lambach Oct. 5, 1948 2,485,382 Howes Oct. 18, 1949 2,572,904: Bauer Oct. 30., 1951