DE1660279A1 - Yarn curling device - Google Patents

Description

£ λη fc ^ snri X-räak Hon .-; »jiiJiy, 34 5 State Stveet, Roeheet« i% ■■■ ..η. ST » 'Z-Ji'lij Yo.i'ilnigte StEüi-ϊΐλ ^ r ^ si America

The invention "b ^ alsht esioh aaf elr ^ i'adenkräuselunge-VOi ¹ IfIChItUiIg ιηί.δ siner iStDpfbüeheöiiii'äaßjSAkaaimei · for the S'irans ΊβΓ su ksitu.3 * lnd Pädea,» Ils eine Durohgangsfc? at its entrance Kfäuatlwalzen sue »Einflüiran des Strand and aa deyaaa Auegang a mi ϊ + λϊ '■> h a.lii3 ?: mtätigua ^ iiainrlchtung κ« η · choice white ^; \ ea AasriaSqLU'! fsiihrilt <; eß öaneo Kanals aöh'iisSzide position swiveling outlet flap "

3el of the Hnrtv; € llung of many commercial articles aue textllen Threads lot eo mostly necessary or desirable that to crimp threads to make the paden

209813/1284

BAÖ ORIGINAL

" ² 166D279

material accepts the desired proprietary fee-η »Commercial items, where the Fadsairäuaslung is important, are brabeispielawüiee made of threads iiez'göirs;>? llta Zi-

Fabric yarn and

Crimping devices of the type mentioned above are often used to crimp the threads. In these devices, the actual Kxäusöi process in the stuffing box is soaked. 131 "AuelaSklappe 1st in the known Vorriebtungen by means of a shaving Mieres pivotally _g so that ice durcth a suitable Betätigüngeelnrlöhtiing in the Offenetell'tmg or the KamraeraiielaB more or less closing the closed position can be swung so that the yarn passage is inhibited in the MaJBe that the desired number of crimps or crimps per unit length is achieved o

However, Eb has shown that the use of Aualaßklapppn attached via a hinge disadvantageous lato Säe hinge often represents a hand-held rivet where the strand of thread intertwines itself; The hinge can make the thread flow unevenly hold back, causing the crimped thread to wrestle a *

409813/1284

■ - 3-. 1680279

uneven number of crimps psro unit length of thread received. Articulated via a hinge. AuslaßkXappeiJ are is usually siemllöh verursasht stiff _r thereby, that it in a relatively obtuse angle; _; close to the Kammerlängsaohs® »This obtuse angle

to
can cause a / sudden.hindering of the strand flow _r as a result of which an uneven thread curling occurs ₀

The invention is based on the object, a simple one structured, reliable and economical To provide working crimping device of the above type, with which a more uniform crimping is achieved.

This object is solved by the device according to the invention characterized in that _f dieAuslaßklappeeinen with the Kammergsliäuai integral, flexible body made Thereby, d ^ ß according to the invention the hinge is in elimination; the result is a simply constructed device in which the sewing parts mentioned above are avoided. As will be explained in detail below in the detailed description made with reference to the drawings, the 'invention

09813/1284 BADOBiGINAL

the device according to the invention no uneven slipping of the thread strand running through the chamber. That Inhibition * »The strand diameter does not take place suddenly but gradually, since the flexible outlet flap of the The device according to the invention does not run in the stnap-JTMi Winkel sur Eaautterlfingaachaft, but assumes a curved shape in Schltefi division, woduxefc the strand passage is inhibited in the desired, gentle manner. Bs results in an extraordinarily good one Uniformity of the spring curl.

You invention is described below with reference to τοη drawings Explained in one.

It's own

Fig. 1 is a schematic, simplified shown longitudinal section through a Execution example of an invention proper device;

2 shows a schematically simplified longitudinal section through a Part of the XrSuseikammer with an embodiment example of a discharge flap and which is modified compared to FIG

209813/1284

BATH

Flg. 3 and 4 of the PIg. 2 Corresponding chord in different versions of the example.

In Fig »1 is a thread strand 1 is shown, which is through a Roller pair 2 is conveyed into a Stopfbüchaenkrüvaelkaramer. The stuffing box head chamber consists of Side parts 3 and wipers 4 and 6, which are attached to the Haeehinenrahmen 5 by fasteners «The The lowermost rope of the stripper 6 forms with that in FIG. 1 the extreme left end of an outlet flap 7 is a coherent piece or is firmly connected to 3c: em. That In FIG. 1, the extreme right end of the outlet flap 7 is articulated to an actuating device 8 by means of a joint head 9. The actuating device serves sum temporarily depressing the outlet flap 7 in order to desired degree of curl non-uniformity In Flg. 1 shows the flap 7 in the position it assumes when the actuating device 8 no force is exerted on them if the threads to be crimped have not yet entered the stuffing box chamber.

In fig. 1 is also with to with dash-dotted lines dl position shown, dl dl flap assumes,

209813/1284

when they are of the actuating device 8 in predetermined. Dimensions is moved downwards when the Fääeri g & t-äil «g-ruffled o The Aualaßklappe does not move continuously up and down, but remains during the whole

Duration of a particular ripple in the same

Not until 7

pressed position ο / then ulmmi; the Ausxaßklappe / again the position shown in Figo 1 with solid lines a·

The outlet flap is not depressed so far that she would touch the bottom of the Kraus ”! chamber. The crimping process is continuous as the threads continuously run into and out of the crimping chamber. There must therefore be sufficient sin under the outlet flap large outlet cross-section remain in order to enable that the crimped threads emerge from the crimping chamber can o

In FIGS. 2, 3 and 4 modified exemplary embodiments of outlet flaps are shown. In FIG. 2, the scraper 6 forms a single coherent piece with the outlet flap H ₉ is, and nloht wlt in VIg ₀ 1 shown at the end of the Auelaßklappe.

209813/1284

ORIGINAL

The exhaust valve shown in Fig. 2 therefore has a Projection 12. When a force is exerted on the AueXaßklappe 11, it then assumes the position shown at 13 with dash-dotted lines »

In Pigoj an even more modified embodiment is shown - the scraper 6, the discharge flap 14 and the articulated head 9 and arranged in relation to one another, as shown in FIG. 1, the outlet flap 14 However, it is made shorter than is the case with the Auelaßklappe shown in Pigl 1. If the Auelaßklappe 14 shown in Figure 3 is depressed, then it takes the position shown at 15 wit dash-dotted lines a.

In Fig. 4 is a still further modified embodiment an example of an Auelaß flap shown "With this off" Guide horn If the scraper 6 is lengthened so that it forms a coherent stttek with both ends of the outlet flap 16. The joint head 9 extends through a suitable opening in the center of the scraper 6 and transmits the force to the center of the outlet flap 16. At 17 old dash-dotted lines the position is rewarded that the outlet valve 16 assumes when a Force is exerted on dl · ·· «

209813/1284

BATH ORIGINAL

It can be seen ρ that it is caused by the unevenly strong formation of the material cross section of the Auelaßklappe has in hand to give it such a bending line "that the Auelaßklappe assumes approximately any desired curvature under load. Don't have a hinge hinged Auelaßklappe describes a gentle arc without jamming parts on which the thread strand can get caught can and without points at which the angle of inclination of the Auelaßklappe relative to the longitudinal axis of the chamber suddenly changes o The crimp uniformity is due to that Ii-pearl-shaped steering, which the exhaust valve experiences during operation, is extremely effective.

When designing the Auelaßklappe, however, care must be taken to ensure that the elastic limit dee is used Klappenwerketoffee is not exceeded «Would the leave elastic range, then the flap would assume a permanent outwardly steered position from which it would no longer return if the actuating device no longer exerted any force on the flap will ο

The flap can be made of any material that has a coefficient of friction suitable for thread crimping purposes and suitable wear resistance "

209813/1284

BATH ORIGINAL

It has been found that hardenable, low carbon spring steel alloys can be used with success. "Es is desirable, if the material is as free of In order to avoid difficulties, carbon is caused by corrosion when using carbon steels could arise. Particularly good results have been achieved with outlet flaps made of stainless steel and beryllium » Copper alloys achieved

You invention © _s no Auslaßklappenscharnier containing device can for crimping any thread mate * rials, from both natural and synthetic fibers are also used, which is normally in a standard stuffing

level crimping device can be crimped _o additional threads play for good crimp thread material are cellulose ⁴

in particular cellulose acetate threads, polyester threads, poly threads olefin threads, acrylic ~ nitrile threads / made of polyamides, threads made of

Wool and the like »

It has been shown that _s as a special combination of outlet vents ^ -Material and thread material suitable lot · combinations. For example, there are

/ Ia ß ester threads a special stainless steel flap good results · examples of other good combinations are: Polyölfinfädn - stainless steel; . Cellulose Acetate Threads - Beryllium Copper Alloy;

209813/1284

Aoryl-iTltril threads - both stainless steel and

Copper beryllium "I <egi.eruiig en; wool threads - rustproof ?

The actuating device can ale ale bellows, as a pneumatic or hydraulic membrane Or the like. Be executed. The pressure force generated by the actuating device bends the Aualaßklappe in predetermined dimensions down o The bend of the outlet flap is predetermined so that the desired strength of the Ripple is achieved - In this exhaust flap position, the ripple is performed

In the following ^ made with reference to FIG Explanation is the mode of action of the invention Device described in more detail. Of course these explanations serve only for the explanation »The invention is in no way limited to the described modes of operation and applications,

The strand of textile thread 1 to be crimped is twisted by the pair of crimping whales 2 in the darning box o When the strand of thread is passed through the stuffing box, the actuating device 8 exercises Via the joint head 9, a compressive force is exerted on the outlet = flap 7. This compressive force bends the exhaust flap

209813/1284

near the bottom. In the position shown above, “As long as the outer flap is bent down, no weird-Bc-left fadon strand can step out of the stuffing box. Therefore, if a larger amount of thread material is fed into the stuffing box chamber, _r is folded, the threads together, pressed together and gekräueelt-o ff ^ nn NCEB ssusätElioh ungekräuaeltee strand material is introduced into the Stopfbücheenkammer, the FAE be "the smaller space compressed _r wherein An <= * sjahl the Kräueel per filament length unit increases" if the threads eind crimped to z \ i the beetlmmten degrees _F then they are in such a state that they can escape under the bent-Auelaßklappe therethrough al "correctly crimped filaments of the Stopfbücheenkammer c if the total yarn portion _f which is to be crimped, the "passed through Stopfbüehsenkräuoeikammer, then τ / ί-dit'd actuator inoperative so that by dieeer = no compressive force is exerted AIIF the Auelaßklappe" therefore, the Auelaßklappe moves back to its upper open position.

The table below serves to explain the extraordinarily good results that are achieved with the device according to the invention in comparison with the usual crimping devices. Both

209813/1284

BAD OFiIGiNAL

The curls listed in the table were made with Stuffing box curling chambers of the same apt under the same Running conditions carried out, but once a hinged outlet flap and once according to the invention a no hinge LaQkIapp was used. One was ruffled under that A strand of polyester threads available under the trade name Kodel. The hinge-less outer flap was made of rust " free steel and had the shape shown in FIG. The outlet flap had a length of 228.6 mm, whereby the length of the end protruding to the rear, measured from the point of application of the actuating device, was 50 * 8 mm.

crinkled broke waste amount of thread Kg Kg __ £

Conventional crimper 57.78 11.41 19.7

according to the invention

Krfiuselvorrichtgo 59.18 O 0

The 11.41 Kf rejects listed in the table could not be used due to a lack of filling power due to uneven crimping. As from the above

209813/1284

BATH ORIGINAL

led table can be seen, a much better result was achieved with the device according to the invention than with the usual device, which is one on one Hinge hinged exhaust flap had.

In a further experiment, an amount of approximately 230 kg of thread strand made of polyester threads was crimped with a device according to the invention, the rejects 0 ^ was.

With the device according to the invention a® becomes a lot better evenness; the crimping achieved than with the usual crimping devices, since the hinge is omitted in the device according to the invention that can form a stagnation point for the thread material and thereby unevenly inhibit the threads as they pass through the chamber a hinge-hinged exhaust flap has a gentle steady curve, while the usual exhaust flaps are straight and run from one point abruptly inclined to the longitudinal axis of the chamber. The slightly curved one Auelaßklappe the device according to the invention causes a more even thread passage through the chamber, which results in a more even crimp. By the more uniform thread throughput, less driving force is required for the KrMusel roller pair 2. if

209813/1284

BATH

-H-

If a pressurized stuffing box is used, then a higher bridge can be built in it All these are common when using the usual devices, as in the case of the device according to the invention no leaks causing pressure loss forming hinge is present

209813/1284 BADORfGtNAL

Claims (3)

Claims β FadenkreisiseXungsvorrichtung with a darning ruff V. chamber for the strand of the threads to be crimped, the one Has passage channel, at the entrance of which crimping rollers for introducing the strand and at its output one by means of an actuating device for the optional change of the cross section of the channel into one more or less closed position pivotable Aualaßklappe are provided, characterized in that; that the outlet flap has a » flexible body (7, 11, H, 16) «, 2. Apparatus according to claim 1, characterized in that the body (7 _V 11 _f 14, 16) is made of stainless steel. 3. Apparatus according to claim 1, characterized in that the body (7, 11 _t H, 16) is made of a copper = beryllium alloy. 209813/1284 W ORIGINAL Blank page