US2452819A - Warp yarn compressing spooler - Google Patents

Description

Nov. 2, 1948. E. J. WILSON 2,452,319

WARP YARN COMPRESSING SPOOLER 2 Sheets-Sheet 1 Filed June 50, 1945 Rx INVEN TOR. Ezek/e/J Wf/sary A 7' TOQNE Y E. J. WILSON.

WARP YARN COMPRESSING SPOOLER 5 Nov. 2, 1948.

I Filed Jun e so, 1945 2 SheetsFSheet 2 1 INVEN TOR. fze/a'e/J M/f/som 47- TORNEY Patented Nov. 2, 1948 2 ,452 319 :WARP YARN .GOMPRESSING SPOOLER Ezekiel J. Wilson, Slingerlands'N. Y., assigncr to C. rationof New York Huyck & Sons, Rensselaer, N. Y., a corpo- Application June 30, 1945, SerialNo. 602,509

Cla m Myinvention relates to the weaving of textiles and particularly to Warp compressing spoolers.

In the weaving. of fabrics, the=individual warp yarns, before being woundon the warp beam for the loom are first wound on a spool; forty strands being usually wound in separate cheeses on the core of a 'comparativelylong spool having heads or end flanges thereon. The yarns fromseveral spools are then rewound simultaneousl upon a beaming creel and, after the desired yardage has been'wound upon the creel, the action is-reversed and the yarns are rewound upon the .warp beam forthe loom. If the strands of yarn are-not all of uniform length and evenly wound on the beam for the loom they will not come off-the beam ata uniform rate with the result-that there will be tight and slack streaks in-the warp of the finished fabric which are extremely undesirable.

At the present time, there are-'twomethQfi-S or machines which are widely employed for spooling the yarns as described above. I'rrone of these machines the separate yarns passthrough guiding eyes which are so far spaced "from the core of-the spool on which the yarns are-wound that the traverse movement imparted to the guiding eyes does not feed the separate yarns closely enough together so that the separate cheeses formed thereby are in contact with each other throughout and so that cheeses adjacent the heads or flanges of the spool arerin contact-therewith throughout. In other-words, gaps exist between the individual cheeses and also between thespool flanges and. the cheeses adjacent thereto. This causes an unevenlaying of the yarns on the spool because one-or moreyarns very often drop down into the gaps so that, when unwound from ,the spool, all of the-yarns do not-come off at-the same-rate. The diameters fromwhich the yarns are-unwound vary, and hence th-e delivery of the yarns from these different diameters Will also vary. This is objectionable because, as pointed out above, the yarns from these spools are used'to'make many sections of a warp, and every yarn should be exactly the same length in each section.

Inthe other commonly 'used machine, the compressing roll which lies on top of the compressing spool has comparatively wide helical grooves cut in the surface thereof which guide the yarns with a traversemotion. Although these grooves guide the yarns as they are wound they do .not prop e rlyand simultaneously compress them because the compressing rol1.obviously.does not contact the suriace ,of the .yarnonrthespool inthezones of h eww st therm a machin -s ill 2 type does not lay vthe yarns uniformly pn the sp ol- J The principal objectof my-inventionisto provide -awarpyarn compressing spooler by means of which the yarns will be laid Withabsoluteuni: formity on the spool, and in .which the cheeses formed v by the separate yarns as they are laid on the spool .will lie againsteach other throughout, and those cheeses which .are adjacent the heads or flanges of the spool .will ,lieagainst said flanges, thus avoiding any ,gaps between the cheeses orbetweenthe end jcheesesand the spool flanges. Another object is to .providea device in which the yarn guides ,will run in contact with the vsurface of the yarn wound on .the spool so that the yarns guided thereby ,will ,be positively carried through to the full limits pf the traverse or. oscillatingmovements ofthe guides, thus building the separate cheeses in contact with v each other .and the end ,cheeses .in contact with the spool flanges. Another object .is to provide a spooler with means for pneumatically raising and lowering the compressing roll ,and varying the pressure which said roll will exert on theyarn. A further object is to provide a .spooler from which thecompletely Woundspool maybe simply rolled out of the machine after thecompressing roll has been raised therefrom.

With these objects in view my invention in.- cludes the .novel elements and the combinations and arrangements thereof described below and illustrated in the accompanying drawing in which-T- .Fig. ,1 is a -front,elevation view of my sp ooler withcertainportions broken away;

F .12 i a sid el vation Withm tims broken away;

Fig. 3 is anrenlargedfragmentary end elevation of h oo s w n he ma smem o alt r? e;

Fig. 4 is. a fragmentary .front elevation ofrthe yarn guides to thesame scaleas ,Fig. 3

Fig. 5 is a fragmentary elevation view of the two yarn .guides in Ythecenterof-the spooler;

Fig. dis a fragmentary perspective ,view illustrating how the spool is held inits bearing channels by an element attached to the yoke which carries thecompressing roll; and

.Fi g '7 is a wiring diagram for the automatic stopping mechanism.

Referring tothe drawings- My spooler comprisesaf-rame I whichcarries substantially all of the operating mechanism. 2 is $11. 9:13 lea e f e? dr vin h Ql 11 men al-in h arin in tn iram ans tq ivse b the belt 3 from the Variable speed electric motor drive Q. Mounted on the drive roll shaft 5 is a brake drum 6 having a brake band or shoe l which is actuated by the solenoid 3. S is the spool which, as shown in Fig. i, is substantially completely filled with yarn. "She spool is provided with a core l4 having heads or end flanges iii and is also provided with a stub shaft ii projecting from each end which rides up and down in a channel l2. It is understood, of course, that initially the core of the spool rests on the leather faced driving roll, as shown at E3 (see Figs. 2 and 6), and is frictionally driven by the roll 2. As the yarn builds up on the spool, the spool core is raised, by the yarn between the core and the surface of the driving roll, from the position shown at M in Fig. 2, through the position It (see Fig. 3) where there are only a few turns of yarn on the spool, to the position M (see Figs. 2 and 3) where the spool is substantially completely wound.

The yarn guides 55 are mounted to swing freely on the shaft IE but are locked against end movement on the shaft by locking rings I! (see Fig. 1). The shaft !5 is mounted to oscillate axially in bearings in the frame I to provide traverse movements of the yarn guides. These movements are accomplished by a cam l8 secured to the driving roll shaft 5, and a lever l9 which is pivotally connected at 79 to the bracket H on frame l, and one end of which rides in the slot in cam l8 and the other end of which is pivotally connected through a slotted hole in the enlarged end of the shaft Iii. The cam and the other mechanism which provide the traverse movements of the yarn guides are designed to provide a one inch back and forth movement of the guides parallel to the axis of the spool. The guides adjacent the flanges of the spool are positioned to bring the yarns which they guide against and have diagonally extending yarn receiving slots 20.

The yarns 2| come from the usual creel (not shown) and pass over and drive the usual rough surfaced measuring roll 22 which is exactly one foot in circumference so that one turn thereof indicates that one foot of yarn has passed thereover. For the purpose of measuring the yarn spooled the roll 22 is connected to a counter 23 which is preferably of the predetermining type and arranged to make an electric circuit after a predetermined number of turns of the measuring roll has been made. Such counters of which the Veeder-Root is one are available in the open market and are provided with the usual counter discs or wheels and, in addition thereto, a second set of discs or wheels which may be set by .the operator so that an electrical contact will be made when the number of turns counted corresponds with the number to which the device has been set.

The yarn guides are provided with faces 24 of glass or other wear resisting material which run in contact with the surface of the yarn on the spool, as best shown in Fig. 3. Just after the winding operation is started the yarn guides are in the position shown in dotted outline at l5 and, as the winding progresses, they swing out gradually about the axis of the shaft 16 and finally into the position shown in the solid lines in Fig. 3 when the winding is substantially completed. The arms 25 on which the yarn guides are mounted are provided, at the bottom, with counterweights 26 which are designed to swing the yarn guides into the position shown in solid outline in Fig. 3 in the event that the yarn guided thereby should break. In other words, the yarn guides are held against the yarn on the spool by the tension of the yarn passing through them and when this tension is released, due to the breakage of a yarn, that particular guide will swing into the position shown in solid outline in Fig. 3 irrespective of the quantity on the spool. Each counterweight is provided with an electrical contact 2? on the bottom thereof positioned to cooperate with a contact bar 23 which is insulated from the rest of the machine by means of the insulation 29 and which is carried on an adjusting shaft 3%. When the electric circuit between contacts 2? and Z8 is closed the machine is automatically stopped as will be described hereinafter.

By reference to Figs. 1, 4 and 5, it will be noted that the yarn receiving slots in the yarn guides to the right of the center of the machine slope downwardly to the right and that the yarns from the measuring roll enter the left side of these slots and leave the guides at the right side of the slots. The yarn receiving slots in the yarn guides to the left of the center of the machine slope downwardly toward the left and th yarns from the measuring roll enter the tops of the slots and leave at the bottom. Assuming that 40 separate yarns are to be wound, there would be 20 yarn guides to the right of the center and guides to the left of the center and these may be one inch on centers and one-half inch wide. In the center of the machine however, in order to wind the cheeses in the center of the spool. contact each other with a travevse movement of one inch, the guides are placed very closely together as shown in Fig. 5. This may be accomplished I by bending the supporting arms as shown at 3! in Fig. 1. These two yarn guides of a special type in that each is provided with a recess 32 in thetop front thereof which communicates with the yarn receiving slot 2%. It is to be understood, however, that while these two center guides are shown in Fig. 5 as being substantially together, each one is free independently to swing about the shaft IS in the event of yarn breakage.

In addition to functioning to stop the machine if the yarn breaks, the yarn guides may be em ployed to stop the machine automatically when a predetermined thickness of yarn has been wound on the spool. The shaft 39 may be turned by means of the knob 33 (see Fig. l.) and locked in any desired position by the nuts 2 or either of them. Thus, by turning the shaft 3% in a clockwise position, as viewed in Fig. 3, the contact between contacts 2? and 26 may be made at any desired yarn thickness on the spool. Since the shaft l6 and the shaft 39 have different centers the contact 2'! is made of rather substantial length.

In order to press the yarn as it is wound, I provide the compressing roll 35 which rides on the top of the yarn on the spool and holds the spool firmly against the driving roll. Since the compressing roll must pass and fit closely within the end flanges of the spool, the ends of the com pressing roll are recessed as shown at 35 in Figs. 1, 2'and 6 to receive the hangers 3'? which depend at each end of the cross bar 22$. In order to raise and lower the roll, the cross bar 35 is connected to the piston rod 39 of a pneumatic cylinder Mi'having a piston 4i therein. To raise the pressure roll, air is admitted through pipe 42 5 into the lower part "of the cylinder :40 through the air passage 43 "(see'Figs land .2) ;-and the air is exhausted from the'cylinder above the .piston through th-e passage 44, the pipec lii, valve 4.6 and pipe fifi. it isto-be u-nderstood that the air :valve 46 is a 3-way valve which, in one position, will admit air from the 'main supply .line 4'! through the-pipe dz'to thelower part of the cylinder and at the same time place the upper portion of the cylinder in-communication with the atmosphere through-:pipefiii, and, in another position,lwill-admit air iromthe supply line through the :pipe as to thetop or the cylinder and place the lowerpOrticn'of the cylinder in communication with the atmosphere through the pipes 42 and 6.5. 48 is a-pressure-gauge to indicate the air pressure in-the cylinder which may be regulated by the pressure regulating valve 49. If a-constant pressure is to be maintained on the spool, a pressure relief valve is necessary in the .upper portion .of the cylinder 40 because, otherwise, the roll pressure would increase pas the yarn is spooled due to the fact that the pressure roll rises therewith and the air pressure in the cylinder would increase due to the rise of piston 4|. An adjustable pressure reliefwalve 49 is therefore attached to the top of the :cylinder .to maintain the pressure of roll 35 on the yarn substantially.constant.

In order to facilitate the removal of the spool whenthe-winding is completed I-preferto form one rflange :of eachofthe channels l2 inwhich the stub shafts of thespool ride :by a member 50 (see Fig. 6) which depends from the compressingzroll carrier. Ashere shown the core 14 of the spool is shown as restingon the drive roll 2 and thecompressingrollfi resting on .the spool core. The -.stub shaft .H is held :inchannel 2 by the member 50. :Sincethe compressing roll andnthe spool core I4 become increasingly separated by the yarn as it builds up on the spool the lower end 52-of the member 58 must-depend belowthe stub shait ila-sufficient distance so that when the spool is completely filled and the compressing roll and the core l4 have reached their maximum degree of separation the members 59 will still hold the stub shafts in the channels. To remove the spool, the compressing roll is raised therefrom by means of the pneumatic lift so that the ends 52 of the members 50 will be above the stub shafts, whereupon the spool, which is of course always supported on the drive roll, may then be merely rolled down the surface of the drive roll on to the platform 53, as shown at 54 in Fig. 2. An empty spool may then be placed on top of the drive roll and the compressing roll lowered to lock the stub shafts thereon in the channels in which they ride.

In the event that one of the yarns should break it is desirable that the machine be automatically stopped as quickly as possible. It is also desirable that the machine stop automatically when the desired yardage of yarn has been wound thereon. I propose to accomplish these things by electrically actuated means which will break the circuit through the driving motor and apply the brake when another electrical circuit is closed, either by the contacts 2'! and 28 or by the making of the contact in the predetermining counter 23. In Fig. 7 I have shown a diagram of the electrical circuits in which 55 and 55 indicate the power lines of a low voltage control circuit and 51 and 58 indicate the main power lines from which power is taken to actuate the solenoid 8 and drive the variabble speed motor 4. 59 is the main switch which controls the driving motor.

Z I-and 28 representgin the-form of aswitch, the contacts shown .in Fig. 3, and BI represents the switch whi-chis closed by the counter 23. 6'2 is arelay solenoid which isactuated by the closing of :the switch 5,1 or the meeting of the contacts 2'! and 28. Under normal conditions the position of the relay switch .63 is as shown in Fig. 7 so that :the motor may .be started and stopped by the switch .59 which closes or opens the circuit from the main power lines 5? and 5% through themotor. In this normal position of the relay switch .63 no current is flowing through the solenoid 8. However, upon the breakage of a yarn which closes the switch 21-48, the relay switch 63 is raised which breaks the circuit through the motor and establishes the circuit through the solenoid 8 so that the motor is stopped and the brake immediately applied. When the predetermined yardage has been wound upon the spool the switch 6| in the predetermining counter will close and the motor will be stopped and the brake applied in the same way as in the case of the closing of the switch 21-28.

Instead of stopping the machine by means of the predetermining counter switch it may be stopped when a predetermined thickness of yarn has been wound on the spool by adjusting the 21-28 switch, as described above, so that it will close when the desired thickness of yarn has been i; wound.

.P'FIOm the foregoing it will be apparent that the spools wound by machine will be wound in cheeses which :willbe in close contact with each other throughout with the end cheeses in close contact withrthe inside surfaces .-,of the spool flanges. In other words, there will be no spaces between the cheeses or between the end cheeses and the flangesas isthe case in the present types of spoolers. Furthermore, the yarns on the spool will be uniformly compressed substantially simultaneously with the winding thereof,

While I have shown the valve controlling the pneumatic lift at the top of the machine it may be placed in any desired location where it will be conveniently accessible.

While I have described my invention in its preferred embodiment it is to be understood that the words which I have used are words of description rather than of limitation and that changes within the purview of the appended claims may be made without departing from the true scope and spirit of my invention.

What I claim is-- 1. In a warp yarn compressing spooler, the combination with means for driving a flanged spool on which the yarn is wound, of a separate guide for each yarn wound on said spool provided with a passage having an opening in the side of the guide through which the yarn passes to said spool, mountings for said guides adapting them to bear against the yarn wound on said spool and to swing independently of each other towards and away from said spool between the flanges thereof, and means for oscillating said guides parallel to the axis of said spool; the side openings in the guides adjacent the flanges of said spool being on the sides of said guides adjacent said flanges, whereby to wind the yarns guided thereby close to said flanges.

2. In a warp yarn compressing spooler, the combination with means for driving a spool having end flanges thereon, of a plurality of separate yarn guides, pivotal mountings on which said guides may swing independently of each other towards and away from the axis of said spool between the flanges thereof; said yarn guides being normally held against the yarn on said spool by the tension of the respective yarns guided thereby; means for causing each of said guides to swing away from said spool in the event of the breakage of a yarn guided thereby, and means for oscillating said guides parallel to the axis of said spool; the oscillatory movement of the guides adjacent said flanges being such as to bring the yarns guided thereby substantially into contact with said flanges, whereby the cheeses adjacent said flanges will lie against said flanges.

In a warp yarn compressing spooler, the combination with means for driving flanged spool, of a plurality of yarn guides and pivotal mountings therefor adapting said guides to swing independently of each other towards and away from the of said spool between the flanges thereof, and means for oscillating said guides parallel to the axis of said spool; said yarn guides being normally held against the yarn on said spool by the tension of the respective yarns guided thereby; and counterweights on said guides adapted to cause said guides to swing away from said spool in the event of breakage of the yarn guided thereby.

4. In a warp yarn compressing spooler including means for driving a flanged spool on which the yarn is wound, a plurality of separate yarn I guides, each comprising an arm, a pivotal mounting for each of said arms adapting it to swing freely independently of each of the other arms towards and away from the axis of said spool, and means for oscillating said pivotal mountings parallel to the axis of said spool; each of said arms being provided at the free end thereof with a passage through which a strand of yarn runs to said spool, and said free ends of said arms being maintained against the yarn on said spool by the tension on the respective strands of yarn passing through said passages.

5. In a warp yarn compressing spooler, the

combination with means for driving a flanged spool, of a plurality of yarn guides having s=ots therein and pivotal mountings for said guides adapting said guides to swing independently of each other towards and away from the axis of said spool between th flanges thereof; means for oscillating said guides parallel to the axis of said spool; said guides being so balanced on their pivotal mountings as normally to swing away from said spool and said guides and the slots therein being so constructed and arranged that the tension of each unbroken warp yarn holds its guide in contact with the wound yarn on the spool; whereby, when a yarn breaks, its guide will swing away from said spool; and means actuated by the movement of any of said guides upon the breaking of the yarn guided thereby for stopping said driving means.

EZEKIEL J. WILSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 320,466 Dickinson June 23, 1885 352,138 Lee Nov. 9, 1886 573,346 McTaggert Dec. 15, 1896 1,067,574 Allen July 15, 1913 1,378,257 Maloney May 17, 1921 1,586,767 Abbott Jan. 1, 1926 1,988,918 Reiners et a1. Jan. 22, 1935 2,026,315 Kahlisch Dec. 31, 1935 2,033,738 Reiners et al. Mar. 10, 1936 2,086,901 Rosa July 13, 1937 2,347,198 Lambaoh Apr. 25, 1944 2,382,760 Wiggerman Aug. 14, 1945 FOREIGN PATENTS Number Country Date 510,626 Great Britain Aug. 4, 1939

Images