US1854040A - Apparatus for treating yarn - Google Patents

Description

April 12, 1932. A. H. JUNKERS 1,854,040

APPARATUS FOR TREATING YARN Filed Sept. 24, 1929 sured. Further, while in treating hanks only te med AP i2, 1932 ADOLF HEINRICH JUNKERS, F RHEYDT, GERMANY- APPARATUS FOR TREATING YARN Application filed September 24, 1929, Serial No. 394,900, and in Germany September 29, 1928.

The invention concerns an apparatus for accomplishing yarn treatments, which usuall are accomplished on yarn hanks, as especia ly the brushing operation serving for the production of strong polished yarn (in Germany called Eisengarn) and other treatments by mechanically acting tools.

The essential feature consists therein, that the yarn is treated by brushes or the like in running state, while passing as a single yarn 01' as a group of several parallel yarns with V freely extended multiple windings around two orsmore drums, whereby said drums have axles being essentially parallel and crossing each other in different planes, and have diameters being greater where the yarn shall have a greater length and smaller .where the yarn shall have a minor length. Thereby a completely new mode of operation is attained. While in treating a' hank the single yarn windings have never a completely uniform tension and lie over each other in multiple layers without order, in the new process the yarns have in all windings a desired tension in spite of lengthening or shortening of the yarn during the treatment and are exposed to the brushes or other tools in complete order and separation from each other, so that a by far more uniform treatment is enone or two circulations of the hank is used and any irregularity acts upon all yarn windings at once, so as to later appear on each winding, according to the-invention each portion of the yarn passes all treating points after each other, so that a completely uniform treatment is ensured. Finally, while a hank can only slowly circulate, in the invention the the work becomes of still higher'uniformity,

and under certain circumstances the moveinent of the yarn may act as treating movement, the brushes or other tools remaining at rest and being more easily subjected to inspection and cleaning. Moreover the hank treatment, in consequence of the relative shortness of the hank, needs much knotting points, whereas in the invention any desired length of yarn can be made without knots,

yarn can run with such a high velocity, that and spools without knots can be produced.

The inventionfurtherconcerns several details of the apparatus as further described.

In the accompanying drawings,

Figs. 1, 2 and 3 are an end View, partly in section, a lateral view and an enlarged par-. tial top view of a winding device comprising a yarn treating device and a store inserted in the yarn running out from it.

' In the machine according to Figs. 1 to 3 g a great number of strands of a single yarn is extended in series. Several such arrangements may be united in a single machine having sufficiently long drums, but with each yarn wound round both drums in multiple threads. The arrangement is the following.

A casing 11 is partly closed by a front wall 12 and contains an inner division wall 13 and behind the latter a heating body 14. A fan 15 is connected to thefore compartment for sucking the air warmed on the heater 14 to the fore chamber and then leading it ofi, whereas fresh air enters from below to the heater.

in the fore chamber, two drums 16, 17 are mounted, the axes of which cross each other in difierent planes. in the illustrated example the lower drum 16 has its axis parallel to the longitudinal direction of the entire apparatus, whereas the. upper drum is' mounte obliquely in the horizontal lane, so that a yarn wound in many. win ings round the drums is able to continuously run round them with properly distanced yarn windings. A belt drive 18, shownin dash and dotted lines serves for driving both drums in equal direc tion. With strong yarn only one drum needs to be driven as the yarn sufices for driving the other. I y

The kind of crossing of the drum axes and the shape of the drums 16, 17 depends upon the kind of yarn to be treated and-upon the kind of treatment.

if, for example, the yarn" increases in length during the treatment, as in mercerizing or spinningfithe shortest distance between both drum axes, the crossing point, as shown in Fig. 1 lies on the yarn entrance,

so that against the yarn exit the drum distance is augmented more and more, and the yarn is everywhere held under tension. If we creases in length, and decreasin inversely the yarn decreases in len h, the Q a esired tension and eventually stretched -ed by as desired.

A yarn tensioning device for iding the yarn from a spool 19 to the mac ine is constructed as follows. Two small crossed feeding drums 20, 21 of essentially the same arrangement as the main drums 16, 17 receive the yarn, coming from the spool 19, in multiple yarn windings and deliver it over a roller 22 to the main drums 16, 17. For setting the yarn under tension, at least one-of the drums 20, 21 is provided with a brake band 23 loadspring).

The yarn coming loosely from the spool 19 is hereby more and more set under tension throu h theidevice.

A rther yarn storing device is inserted into the yarn running out from the treating drums 16, 17 said device also consisting of a air of small drums 25, 26 with axes crossmg each other. These drums are also driven is axially displaceable against the main driv-' from the machine drive and surrounded by the yarn in multiple windings. These drums 25, 26 are held-in bearings only'on one end so as to allow the yarn to be drawn ofiover the other free head ends with a velocityindependent upon the winding up velocity. The drive of said drums 25, 26 is a regulable one, the drums (or at least one of them) being driven by a conical pulley 27 which ing belt 18 of the entire machine. For guiding the yarn an oval circular guide cup 28 is arranged before the free ends of the drums 25, 26, over the edge of which cup the yarn runs in beingdrawn off. On said cup a guiding arm 29 is mounted which guides the, yarn by a uide eye. Said arm 29 is mounted on a sha 30 by aid of a frictional clutch (similar to a watch hand clutch), and the shaft 30 is driven by a belt drive 31 from any speed changing gear, such as stepped or conical pulleys, and said gear is driven from one of the drums 25, 26 and in the same direction as these. 7 K

interchangeable weights 24 (or by a 21, and runs with the desired ten-- The action is the following. If the spoolin device draws oh the yarn with a higher velocity than it is delivered from the treating device, more and more ,windin s are drawn off over the head end .of the evice,

the guide arm 29 being slowly rotated by the loose only a part of the yarn windings by the drawing ofi over the head ends. If the spoolving device operates with a smaller velocity than the treating device, the drive 30, 31 acts through. the frictional clutch on the guide arm 29, so that the latter follows the yarn on the'cores and au cuts the number of windings onthem. possibility of filling the cores with yarn windings in the begmningof operation.

In this way independently u on the enhis gives also the trance of yarn to the storing device, the yarn can be delivered to any winding device w1th any desired velocitv and with a uniform tension regulated by the frictional clutch.

For automatically obviating an accumulation of too much windings on the delivering drums 25, 26 the following device 1s prov1d ed. Between said drums an oblique lever 32 with a balancing weight 33 is so arranged that it lies in the region of the-last arn windm s on said drums. Thereby a sli ing ofi' of sand windings over the heads of said drums 1s; obviated, and an electric contact 34 is closed by said lever. A magnet coil 35 is thereby fed with electric current and attracts its, core 36, which against the tension of a spring 38 displ'aces a belt fork 37 so as to displace the drivin belt 18 of the spooling device on the conica pulley of the latter. This s oohng device is thereby accelerated and etracts more yarn -so as to diminish the number of windings on the drums 25, 26. Thereupon the contact 34 is again ope hned and the normal running is restored. e obli ue position of the lever. 32 allows several s eets of yarn to press on said lever in unison, so that also very thin yarn can operatesaid lever without breaking. For strong yarn a simple up ri ht lever is sufiicient.

or treating the yarn, rotary brushes 42 are applied to the front and rear side of the small velocities in one or the other direction, so as to apply successively their diiferent por-' 'tionsto the yarn and ofier the other portions to inspection and, if necessary, to cleaning.

' 21 and the roller 22 three brushes 45, 46, 47

I co

tea e040 A drive with a circumferential motion coin cident with the yarn running direction obviates the accumulation of dirt on the yarn,

elastic drive, that it swings up and down between the yarns and if desired swings fully out between them on the top end of the swinging motion, for separating yarns adhering to each other. A drum 44 connected to said comb serves for being applied to the yarn when the machine is at rest, for holding the yarn under tension when the brushes or other tools are interchanged.

In soniecases said comb 44 may also be stationary with the teeth under an acute angle with respect to the yarn, which then climbs over them, if, due to the yarns sticking together, the tension becomes too great.

For preparing the yarn to the-"treatment, in the inlet between the tensioning drums 20,

are applied to the yarn, the first brush 45 being moistened by water or. steam, the second .brush 46 being filled withparafiin or a similar smoothening material, and the third brush 47 serving for distributing the water and paraflin and removing their abundance.

For cleaning the main drums 16, 17, which are constructed as skeleton drums the following device is arranged. Each drum 16, 17

has on its ends smooth friction rims 48, and

shafts49 supporting cleaning drums 50 and friction rims 51 are mounted in elastically applied bearings in such way as to be driven from the drums 16, 17 by the friction rims 48, 51. Said cleaning drums'50 thereby grind on the skeleton drums so as to clean them from dye and other impurities deposited thereupon. They extend only over a portion of the length of the main drums 16,17 near the yarn entrance, as only in this'portion impurities are encountered.

The operation of the entire machine is the following. The dyed yarn ,runs from the spool 19, which eventually is enclosed in a usual steam chamber through the tensioning device 20, 21 to the brushes 45, 46, 47, of which the first brush 45 can be omitted especially in the case of using the said steamchamber, polished by the rotary brushes and at once dried'by the warm air current, each portion passing very often in succession the brushes and the air current, so that completely polished yarn is produced. 'llhe spooling device forms said yarn immediately to spools ready for'use.

The machine is also useful for difi'erent other treatments of yarn, for example for and after this preparation the yarn is regulable drive.

waxing, for quenching or stewing, or for brushing operations in naphtholic colouring processes. In much of these processes no moist and dyed spools are used, and therefore the drying device is not to be put in action. For such processes the velocities of brushing or the like have to be altered as far as necessary, or the brushes are tobe replaced by other tools. lln all such processes the crossed drums are able to surely hold each yarn under tension due to the adapted choice of the situation of their crossing point and due to the adaption of their diameter variations.

I claim:

pecially polishing it, comprising in combination essentially parallel rotatable drums, the

axles of which cross each other in different planes, so as to receive a yarn wound around said'drums with freely extended multiple windings arranged in the manner of a single thread screw, the diameter of said drums being greater where the yarn is of greater length and smaller where the yarn is of minor length.

2. An apparatus for treating yarn and especially polishing it, as claimed in claim 1, wherein a comb is inserted between the yarn sheets and driven so as to be swung to and fro between them in their lengthwise direction and fully out of touching them on the one end of the swin ing motion.

3. An apparatus or treating yarn and especially polishing it,as claimed inclaim 1, wherein a comb is insertedbetweenthe yarn sheets, the teeth of said comb being arranged under an acute angle with respect to the yarn in such direction, that the yarn under too great tension is able to climb over said teeth.

compartment is provided behind said, wall,

and a warm air current generator is conneoted to said compartment so as to act on the yarn being extended behind said wall.

5. An apparatus for treating yarn and especially polishing it, as claimed in claim 1, wherein for tensioning the yarn running to the drums a pairof small drums witharres crossing each other in difi'erent planes is inserted before said main drums, and at least one ofsaid small drums is provided with a braking device. i

6. An apparatus for-treatlng yarn and especially polishing it, as claimed 1n claim 1, wherein to tension tile yarn running from the drums a pair of small delivering drums w th axes crossing each other in different planes is inserted after said main drums, sa1d delivering drums having one end free for axial-- ly drawing off the yarn, said delivering drums being provlded witha and atleast one of- 7. An apparatus for treating yarn and especially polishing it, as claimed in claim 1, wherein for tensioning the yarn running from the drums a. pair of small delivering drums with axes crossing each other in difierent planes is inserted after said main drums, said delivering drums having one end free for axially drawing oil the yarn and covered by a cup guiding the yarn round its edge,

and at least one of said delivering drums being provided with a regulable drive,

8. An apparatus for treating yarn and especially polishing it, as claimed in claim 1, wherein for tensioning the yarn running from ,the drums a pair of small delivering drums-with axes crossing each other in different planes is inserted after said mam drums, said delivering drums having one end free for axially drawlng oil the yarn, a guiding member is rotatably supported oppositely to said free end and adapted to guide said axially drawn yarn, braking means are provided on said guiding member, and a regulable drive is provided at least on one of said delivering drums. v

9. An apparatus for treating am and especially polishing it, as claime in claim 1,

wherein for tensioning the yarn running from the drums apair of small delivering drums with axes crossing each other in different planes is inserted after said main drums, said delivering drums having one end free for axially drawing oil the yarn, a guide ing member is rotatably supported on a driv-' ing shaft by aid ofa friction clutch, o positely to said free end and adapted to gui c said axially drawn yarn, and a regulable drive is, provided at least on one of said delivering drums.

10. n apparatus for treating yarn and especially polishing it, as laimed in claim 1, wherein for tensioning the yarn running from the drums a pair of small delivering drums with axes crossin each other in difi'erent planes is inserted a r said main drums, said delivering drums having one end free for axially drawing off the yarn, and at least one of said delivering drums being provided with a regulable drive-and an abutment is arranged near the free end of said delivering drums, so as to revent the yarn from descending over said ree end.

11. An apparatus for treating yarn and especially polishing it, as claimed in claim 1,

wherein for tensioning the yarn running from the drums a pair of small delivering drums with axes crossing each other in different planes is inserted after said main drums, said delivering drums having one end free for axially drawmg ofi the yarn, and at least one of said delivering drums being provided with a regulable drive, a contact lever is arranged near the free end of said delivering drums, so as to be depressed by a yarn travelling too far, andan electromagnetic despeed independent of the speed of delivering 1 the yarn to the bobbins.

13. An apparatus for treating yarn and especially polishing it, as claimed in claim 12,

wherein adevice for tensioning the yarn running to said drums is inserted before said drums.

14. Apparatus for treating and polishing yarn, comprising two essentially parallel r0 tatable drums, the axles of which cross each other in difi'erent planes, so as to receive a yarn wound around both said drums with freely extended multiple Windin arranged in the manner of a single threa screw, the cross point of the axes of said two drums bein arranged on that point of the length of the rums on which the yarn is of the shortest length, means for rotating one of said drums, and treating tools, such as brushes, appliedto the freely running yarn extended between said drums. In witness whereof I aflix my signature. ADOLF HEINRICH J'UNKERS.

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