DE1685906A1 - Method and device for attaching a thread end to the fiber collecting area of an open-end spinning machine by return delivery - Google Patents

Description

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1685908

PATIMTANWN.T1.%., ..; *: DR. MOLLER-BORE DR MANITZ DR. DEUFEL DIPL-INQ. FINSTERWALD DIPL-INQ. GRÄMKOW

• MÖNCHEN 22, ΒΟΒΕΑΤ-ΚΟΟΗ-βΠΙ *

- TELBFONatöHO ^

Hl / th -B299

MAßCHIKEII? ABRIK BIDER AG Winterthur, Switzerland

Method and device sum Anseteen a thread end β on the fiber-gathering surface of an open-end spinning machine through return delivery.

The invention relates to a method of preparation of a pad end to the fiber tubing surface of an open-end spi Tirana Bchine through return delivery, especially when ordering » occur a thread breakage or when starting and on a device for carrying out the process.

The return of a «yarn to a paeers collection area an open-ended spinning device must be very quick, for a take place in a certain time and in a certain Oarn length, if no thread breakage occurs when starting the machine should, or if during operation when a If the thread breaks, such a reliably again on the fiber jornel surface injected with the newly delivered fibers, d. H. should be set.

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It is already known, for the purpose of back delivery in open-end spinning machines with a rotating spinning chamber mechanically rigidly coupled trigger via a gear. and drifting orphans saut unwinding twine together backwards by an assigned, predetermined amount turn and then suddenly to normal operation, d. h · Forward run, to reverse · This procedure has but the single point of accelerating large masses several times and the take-up reel does not always come along, that is the drive roller slips, so that thread breaks when reversing and when reversing in normal run upwind. Errors can occur as soon as the delivery speed significantly exceeds that of a ring spinning machine "

It is not possible with this known procedure all to meet technological requirements that must be placed on a good preparation process

It is also known on automatic winding machines with tying devices to fix thread breaks without the Interrupting the winding process, and doing so from a vessel to take up a pent-up yarn reserve to pull off an opening during the attachment process and uninterrupted winding. The tying takes place through a complicated tying device, which of the broken thread with a gripper from the cop to be unwound is fed. There is therefore no need for a return delivery completely · On open-end spinning machines, however, such grippers and tying devices are useless, well the preparation process was carried out on the fiber saddle surface where the thread breaks occur, d. H. dae

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It is already known, for the purpose of return delivery to open-end spinning machines with a rotating spinning chamber, to rotate the take-off and drive rollers, which are mechanically rigidly coupled via a gearbox, together with the threading package, backwards by a certain, predetermined amount and then suddenly to normal operation »d«, h » Forward run, to reverse · This method has the disadvantage that several great hates have to be accelerated and the take-up reel does not always keep up, ie. slipping on the drive roller, so that the rise errors can occur during the reversing thread breaks and at Zurückreversieren in normal running as soon as the delivery speed that substantially exceeds a ring spinning frame _t

Eb is not possible with this known procedure at all technological requirements that make a good approach * Process must be made to meet su.

It is also known on automatic winding machines to fix thread breaks with tying devices without the Interrupting the winding process, and doing so from a vessel to take up a pent-up yarn reserve to pull off an opening during the attachment process and to wind up continuously. This is where the connection takes place by a complicated tying device, which the broken thread with a gripper from the cop to be unwound Supplied. is «, a return delivery is therefore unnecessary Completely. On open-end epinnmaechinen, however, such grippers and connecting devices are useless because the attachment process at the Fasersanaelfliehe, where the thread breaks arise, be carried out nut, d. H. dae

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wet broken end brought back to this and applied there and also connected with the newly peeped? aeera and screwed in and then sunk Stilleets are provided on the thread reserve and to generate a movement of the thread reserve on the tying device, which must then also be combined with further pneumatic gate directions to find the thread end of the thread reserve.

Another object of the invention is as possible size, indolence and return delivery to largely eliminate masses to be accelerated »

Finally, one aim of the invention is to break the pades with the label delivery, which is affected by the sluggishness of the Coil or wind up errors, suppress eu and the return delivery at high speeds such as those at Open-end machines are available, to guarantee "

For this purpose, the invention provides that the bucking delivery from one - viewed in the yarn running direction - 'after the suction whales and before the Aufvrindstelle previously provided yarn reserve by reversing the yarn movement to the Take-off rollers and reducing thread reserve happens.

An apparatus for carrying out the invention Method with a rotating fiber saramel surface and Characterizes the yarn from these pulling-off draw-off rollers Bowie of a take-up reel driven by frictional entrainment

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by the fact that dt is being rolled out for delivery one between take-off rollers uzvd take-up reel previously built up The yarn reserve can be reversed independently of the winding reel are set up *

XIn an essential part of the goal of the invention is that the recovery process from the influence of the Take-up reel or its drive is freed and only takes place through the reverse run of the Absugavalzem.

The invention is described below with reference to the drawing, for example} which shows:

Fig. 1 and 2 each have an OpenM-ßpinnvorrlchtung in scheme * tlecher Dar at «llungι

Fig. 5 is a detail ie elevation; Tig. 4 shows a section along line IT-IT from FIG. 3J Fig. 5 «in detail la elevation

Fig. 6 and 7 each have a different open or pinned device in scholarly representation!

8, 9 and 10 show a modification of the drive of the take-off rollers in a schematic representation.

A thread 2, shown in dashed lines in FIG. 1, is withdrawn from a rotating fiber area 1 via a thread monitor 5 and passed to the pair of withdrawal orphans 4 and from this to form a Beserveschllnge via a tänserbügel 5 and a thread brake 6 to the hat drum 7 and to the take-up bobbin 8 . Sin coaxially to the hat drum shaft 9 arranged drive motor 10 with the rotor shaft 11 drives a rigidly connected bevel gear pair 12, 13

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The smaller bevel gear 12 drives the suction drum pair "4" in normal operation via bevel gear 15 and shaft 16 in the suction direction, whereby the clutch 14 is engaged. In the position shown in FIG and 1? is transmitted on shaft 16 and the Abeugswalsen 4 driven in the opposite direction.To ensure that the speed of the return delivery is greater than that of the Absugsge schwind! gkelt, the XKarch knife ratio of the baths 12, 15 must be selected smaller than that of 13 and 17> step If a thread break occurs, the thread monitor 3 gives contact via the circuit 18 and brings the pull magnet 20 via the control unit 19 into the position shown in 71g «1, whereby this releases the clutch 14 via a lever system and the wheels 13 and 1? in The intervention takes a short period of time predetermined by the control unit 19 Coldly tightened by the thread brake 6 and the inertia of the bobbin and the dancer bow 5 * us of the sucked-out is raised to the dashed positionHun touches the backward spewed yarn end again on the fiber collecting surface 1 and spins on.Bas control unit 19 has meanwhile after the adjusted course time the magnet 20 is switched off, so that the pair of baths 12, 13 moves to the right and the switchover to take-off and wind-up, d, h · to normal operation, takes place. By appropriate bins division of the coupling 14 can be ensured that it is wound up somewhat delayed, so that the correct length of the loop placed around the dance hanger 5 is quickly formed again. Hit the magnet 20 via an angle lever 20 'is connected to a brake shoe 20 ", the uncoupled

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Hat drum? ¹ UiId so that the coil 3 brakes

In Pig. 2, both the jut drum 22 and the pivotable take-off roller 23 and the fixed roller 24 are rigidly coupled to the drive shaft 25 and continue to rotate, even if a thread breakage is signaled to the control unit 27 by the thread monitor 26. A second, faster running roller 28, the shaft of which takes over the rotary movement of shaft 25 and passes it on to roller 24 via the pair of wheels 29, is fixedly mounted in the machine frame. It rotates in the opposite direction to the take-off roller 24. To start the thread, the take-off roller 23 is now moved from the take-off cylinder 24 to the reverse and faster rotating roller 28 in the pig. 2 swiveled out position. At this moment the control unit 27 lifts the bobbin 32 from the grooved drum 22 via Bebemagnet 31 to interrupt the entrainment, and at the same time the bobbin is independently braked. The set Anaet2-reit has expired, so does the control unit 2? the magnets 30, 31 are removed again, and the normal take-off and wind-up process with the thread set in the meantime starts again. The described reversing of the take-off rollers can also be achieved in other ways, as described in FIGS. 3 and 4 .

the continuous shaft 33 carries a sleeve 34 on which a bell-shaped segment 35 is mounted on the side. Between the sleeve 3k and segment 35 ″ there is a swiveling take-over roller 36 which has some play and which is fixed to a second, co-rotating, free

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meaningless out roller 57 is connected, forms together with a pressed-on dierae pressure roller 38 abzuziehenden- a nip for the passage end en _t Fadon 59th The roller is guided and loaded in such a way that it takes part in the pivoting of the roller 57 with the load remaining the same. As soon as the take-over roller 56 is brought into contact with either the sleeve 54 or the segment 55 by pivoting, it rotates at normal or higher feed-back speed and the corresponding direction of rotation, d. the VyIze h _f is pressed onto the can 54, the yarn 59 is conveyed further -in normal Abaugsrichtung * fares sumptuously "Toggle .hingegen the Übernahiasvralze 36 outwardly of the segment 55" so the running direction of the Fadene for accelerated return delivery reverses * The triggering of the pivoting movement can be done as in the previous examples of electromagnetism. The segment 55 can sit on a movable continuation AO which is secured with a screw 41, so that the path of the roller 56 and thus the returned length of thread are in one set the desired value.

If the swivel arm 42 strikes as a result of the passage of the endo of continuation 40 at contact 4J, bo becomes the EÜckßchwonkung made to the sleeve 54, and the recovery is finished.

A further example for viewing the return delivery of the take-off rollers is shown in FIG. Here, the thread 44 between two pressure rollers 45, clamped 46 which rotatably per Eitzen on a pivoting lever 47, 48 _e, the a platen roller 46 1st roller with a greater frictional 49 coaxially secured to which a spring 50 firmly to the drive shaft 51 is pressed. The platen 45

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if only the thread 44 to be withdrawn is clamped against the brackish roller D 1, the position shown in FIG. 5 corresponds to normal operation. If the magnet 52 now additionally presses the second pressure roller 45 downwards forcefully, it lifts the friction orphan 4-9 together with the pressure roller 46 from the drive shaft y \ and is in turn driven faster for the return delivery in the opposite direction of rotation and the more favorable translation ratio (dashed position ).

As already mentioned at the beginning, the known solution of rigidly coupling the hat drum and the peeling drum by means of a transmission gear and driving the transmission gear via a reverse gear is unsatisfactory. If you have a thread reserve switched on, you can already achieve a significant improvement, because the rigid connection between the motor 56, reversing gear 5? »Chain drive 58 and pull-off rollers 55 on the one hand and the Bfuttroiamel 54 on the other hand is canceled in its disadvantageous effect for backfeeding gear 57 through. Impulse from thread monitor 59 reversed, resolved by a thread end running out in ear 60, then the exact, prescribed length can be retrieved from the thread reserve, even if the thread package 61 slips on orphan 54- due to the sudden reversal not reversed fast enough. The same There is safety when starting up, if, due to the inertia of the start-up phase of the twine, it lags behind and in the absence of the dancer »an uncontrolled loop would form, which would have to interfere with the winding process»

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Another solution to the same problem is given in Pig reproduced »In the otherwise same order as after Pig, 6 was between that reversing gear 62 and the Wuttroa & el 63 for the coil 64 · a © torsionally elastic or . Limited torque clutch 65 switched on, whose Characteristic eo must be designed so that it is rigid at low load as in IToXmI Betrleb The clutch works. However, if the torque exceeds z. B * when reversing a certain value, so can feed drum 63 and bobbin 64 remain slightly behind, while from the thread reserve on the dancer bar 66 the length differences » of the thread is fed back. With this arrangement, a very rapid return and reversal can be achieved of the withdrawal whales can be controlled without being affected by Spinning station to spinning station a slide of different sizes .the coil has a negative effect.

Another possibility to accomplish the backfeed au is shown by? Ig # 6 "The AbzugweXsesi 67" 68 sit on a swivel arm 69 around the center of the drive roller 70 “Buren” can be swiveled in a rolling motion below (in the direction of the arrow) on the Azrfcrisbsvalze 70 The cleavage point of the rollers 67 »68 is related to the underlying spinning unit 71» which in and of itself already has one Backfeed arises »but with the rolling movement, among other things the angles, returns an additional length of thread «.

Another variation according to Pig. 9- "and 10 is remarkable in that only one thread guide 72 has to be turned over in order to achieve the accelerated return of the yarn. The double-iron thread guide 72 is drawn in the normal thread take-off position, in which the thread is positioned on the longitudinal line of the two stored in the frame Rollers 73 and

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is delivered. Roller 74- takes over the drive from one continuous shaft 75 »on which a larger orphan 76 turns. On this sitst a pressure roller 77. If the Thread guide 72 folded over in Ffellrlchtirag * eo kornnrt der Pads like the larger WaIaβ 75 and the opposite one Druckwalf, e 77, whereby a beseiüeunigte RÜckliefdru & g is achieved. The Aujafuhrungsforu has th «n Part of the gate that the Vüdenffihrer much leather on the same side ** father can serve *

The representation and explanation are simplified su _t in the above description, the movements elektroaagnetisch operated · Se is possible in the sense "of the invention also readily su use mechanical, hydraulic or pneumatic means"

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Claims (1)

P a t β η t a η β ρ r ü ch β ss saaiss 1. A method sua applying a Fadenendea of di · fiber "· aaamelflaoh * a ^ OffeaexuäspiniiaB chlne view through delivery, tn" be sondere upon the occurrence of a β Fadenbruohee or "start-up, characterized marked in" β ic h n · t ₉ that the Hückliofern from a <- considered in Gamlaufrlittmg "near the take-off shafts and the yarn reserve previously made available in front of the wind-up point by increasing the yarn bend at the take-off orphans and reducing the thread reserve * 2 «Method according to claim 1, characterized thereby e t that the heversierune of the && rnbewegung through Brehrrichtungweeheel which is "rolled down" & effected " 3 »The method according to claim 1, characterized in that the reversal of the yarn movement is achieved by shifting the yarn path from the KXeaalinie of the continuing suction rollers and the Oarn suction after full suction of the return delivery by reinserting the yarn in the pinch line of the continuing AbKUgswalsen (Fig. 3 and Fig. 9). 4. The method naoh claim 3 _9, characterized in that after the laying of the yarn course eus the Kleamlinie the ^ take-off roller, the yarn in a in Bück- / direction
A pair of rollers is inserted and, after the return delivery has been completed, it is moved back out of the sea into the earlier Eleüm line » 109836/032 * 1 1885906 5 · Method according to claim 3 or 4 _? thereby g β Je eaa · eeiobnet that the presentation of the course of the Sarn in the direction of full! sucked we (Fig. 9) » 6. Propagate according to claim 3 or 4 ₅ characterized by gtkt &a'-κ β that the laying of the Gamlaufoii takes place in GawüLaiifrichtung (yig »2). 7 «Method according to claim 1, characterized by canoes 1 a hn «T, that it is released back with greater flexibility as aljgeswjsen is » 8. Procedure according to. Claim 1, characterized in that gik $ £ »nis) i n et, that the wind up during the closing broohen will « 9. The method according to claim S * thereby gekea ^ se 1 c n t t that iis interrupting the winding β d \ y? cL d «? Updraft hotel 10 «Method according to claim 6, dsdtm»]! g β fc 9; na »eich η β t, since the interruption of the knPflaämw Aumt lifting of the bobbin occurs on the drive shaft« 11 * Method according to Anepruoh 10, thereby 9 a k β η η z «io η · t "dafi with the lifting of the J $ pul" dieee ßebrsaat; weather 12. Method according to An * prudh 9 or 11 »dadureh g e k e η η * β 1 $ h η · t, that the updraft · »YeruÖgext stops will" * 12 * 109836/0321 13 »apparatus for performing the method according to one of the preceding claims with a rotating safifflielfläche and the G-am withdrawing from this Abaugswalaen and a driven Heibirngsmitnahme updraft * - reel, characterized geke'n-nzeic h η" t that άί * Abzugawalzsn for return delivery from an awischen suction * - valsen and winding reel previously built up goods serve can be reversed independently of the upwind pulse * _ * Device according to claim 13 »characterized in that g e k β η η · shows that between a drive shaft and the take-off shafts a switchable on return delivery Bevereier gear provided and the drive to the winding spool is designed to be interruptible. 15 · ^ apparatus of claim 1, characterized GEK β η η ζ eic hn β t, that the drive of Aufwiadspule ae by a lifting of the coil from its adjacent Antriebswal unterbreohbar 1st. 16. Apparatus according to claim 14, characterized in that it is marked e t j that the drive of the winding spool can be interrupted by a disengageable clutch 17 »Device according to claim 14 to 16, characterized in that g & ke η η. · Indicates that a braking device / for the no longer driven winding reel or its drive «walsa» is provided 18. The device according to claim 15, characterized in that g e k · η η M i β h α ι t that rwisehen a reversing gear (12, 13, 15, 17) for the Abisugswalssen (4) and the drives * device for the winding reel (8) a coupling (14) ■ - ■ = v. - 15 - BAD ORIOtNÄL -. ■ 109836/0321 $ 118,590 is provided that when reversing the coil drive eus- and when switching on the IJaraalganges again engages (Fig. 1). ■ The apparatus of claim _13} wherein ge Ic θ na · ζ ei β h η et that the Abzugswalaen aue a Walsjentrio (23, 24, 28) are made, the aufweiat one on a ara located Walae (23) FIIT example a a Reverewalsa (2 &) exhibiting higher circumferential speed and reversed direction of rotation and with the lower circumferential speed, ▲ bzuewalze (24-) is brought to a 3: iemmlinienbiXdung (Fig. 2). 20. Device according to claim 1J *, characterized in that that the pair of vent whales (37-38) sohwenkümx is suspended and has a transfer roller (36), which in siormal operation on a toferitbswelle (33 »2W-) and in Eevarsierbetrieb with a start the drive b « shaft seated, circumferentially limited, higher Umfengsgesohwindigkelt having segment (35), in Beibungsmitnähme is brought (7ig> 3, ^) - 21. Vorriahtung according to claim 13 _5, characterized in that the draw-off rollers (4 · ^, 46) which form the thread-end line are rotatably arranged on a swivel arm (4-7, 46) and a draw-off roller (4-5) when it is hovered. the drive takes over the direct contact on a drive shaft (51), while in normal operation a coaxially with the other suction whale (46) arranged and firmly connected to it larger double whale (4-9) while maintaining the thread clamping line to rest on the drive shaft (51) comes (? Ig · -5). 22. The device according to claim 13, characterized in that an elastic or flexible coupling (65) between the reversing gearbox (57) and the winding pulley (64) is switched on (J ¹ Ig.?) . 25 «Apparatus according to claim 13, characterized ge k" AA- "" ichnst that the Absugswalaenpaar (67, 68) on an inter alia dia drive shaft (70) between SWEi Ctronzl & gene pivotally mounted rocker (69) mounted is _f wherein the one Absmgewalze ( 67) one has been in frictional contact since θ with the drive shaft (70) and on the other hand with the s & wide AbsiigsvalEß (66) forming the thread line, and where the one limit position corresponds to the horror operation, and that. the wing in the direction provided let (? ig * 8). Torri ^ ht ^ ng according to claim 15 "by the fact that on the establishment of the thread a thread guide for the lateral extension of the thread" is seen from 4 "r of the Abaugswalßen Torge 25 «Vorrishtuag according to claim 3fr ', characterized by g β -k · η η · marks« that a large pair of reverse rollers rotating in uagekehrteaj Breheinn has been seen, \ mä the thread guide deflects up to its sleamline area for the purpose of axial insertion of the game into this Elea line » - 15 - ■ "■; 109836/0321 BATH ORIGINAL Blank page