DE1510789A1 - Method and device for the automatic operation of two-for-one twisting machines - Google Patents

Description

8 Munich 5

Μύ (Ι «(sir. 31 - Tel. 266060
Method and device for the automatic operation of two-for-one twisting machines

The invention is directed to an ancestor for automatic Operation of two-for-one twisting machines.

So far it is known to be necessary to have such a machine to be constantly supervised by one or even more twisters who can intervene at any time to to change running bobbins or to eliminate thread breaks. If this does not happen, there will be considerable downtime and thus a poor utilization of this capital-intensive machine. As a result, it is also often difficult To run two-for-one twisting machines in three shifts, because, as is well known, twisting and winding or the associated service work is women's work and women are in Night shifts may not be employed,

It is therefore desirable to automate the operating work on the two-for-one twisting machine so that the machine can run at least for a long time without supervision. Rather, the structure should be as simple as possible. This should be aimed at in order to reduce the cost of to keep the structure as low as possible and, on the other hand, to reduce susceptibility to failure.

With such a system it should be possible, not only largely to replace human labor, but also to work faster and more uniformly than this human labor alone is possible 1st. In this way it would be possible to achieve overall that labor production would ever Unit of time and the machine efficiency can be increased,

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New documents (Art. 7 1 1 Ab-. 2 vr. Ι? «Ite S tfn AmteruflflNV«. V. 4. 9. ? 90

BAD ORIGINAt

One operation that the twister has to carry out and that entails a long period of time is threading of the thread through the hollow tube of the spindle. One suggestion that is not part of the prior art is to try it has been undertaken to reduce the manual times associated with this by creating a preparatory atoll, which is designed as a pneumatic threading device. Although this allows the manual time to be reduced, only one is used with regard to automation Partial success achieved.

A particular difficulty has socializing of the broken thread, and it's been known by the pure winders length that the automatic for this operation complicated particular, is prone to failure and costly.

The invention is based on the essential knowledge that it is the case with two-for-one twisting as opposed to pure winding only comparatively seldom comes to the knot of the thread. Since not rewound from small units to large units will and order a thread cleaning, the thread breaks in Increased number means that it does not take place, should, despite extensive automation, be based on an automatic knotting process been waived. This means daij a complicated one Tying device does not need to be present.

“In terms of this finding, there is the inventive method therein, pay-off bobbin. and twisted bobbin tube or twisted bobbin to change together and to constantly form a group that belongs together until the end of the thread run.

If in this context and also later on a pay-off coil is spoken of, this is any arbitrary one Kind of pay-off bobbins meant, including those with double windings are provided.

In order to carry out the process, the group consisting of the pay-off bobbin and twisting bobbin tube or twisting bobbin should always be together remains, such a group moves practically around the spindle bench for purposes of the Weohselna,

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and it is especially twoclonus, for this a rectangular one Considered to be provided. This means that expediently a VbIaufspulträger, whose bobbin has run out or its thread broken i; «t, as well as the corresponding twisted bobbin against a bobbin carrier equipped with a threaded bobbin replaced at the same time with an associated 2wirnspulenhiil.se will.

After the thread breaks, the twisted bobbin and the pay-off bobbin are brought into convenient proximity to one another. The thread ends were knotted in due course and the thread and pay-off bobbin existing group is set for an automatic insertion held ready again at the twisting point.

As can be seen, the threading and tying becomes one Place outside the actual twisted atello. the Zwirnerin has enough time on this l / oiso to take this JlaÄ- i.e. in particular the knotting, to be carried out without impairing the running of the machine. This is primarily made possible by the measure that pay-off bobbin and twisting bobbin sleeve or twisting bobbin up to for the final Fadon sequence as a cohesive group together remain, no matter how often there is a disturbance due to thread breakage.

In particular , it is advisable to proceed in such a way that a bobbin pot attached to a pay-off bobbin is provided with a bobbin tube or twisted bobbin outside the twisting bobbin and the thread pulled off the pay-off bobbin and threaded into the tube is placed on the twisted bobbin tube; this may be the case the thread can also be tied again between the pay-off bobbin and the twisted bobbin if it is a question of eliminating a thread break.

The method according to the invention can be particularly effectively put into practice if the exchange of the coil carriers in one direction of movement without reversing the direction from one side of the machine to the other. During this exchange movement, the new thread bobbin or

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Twisted bobbin removed from the bobbin carrier and placed in the bobbin frame used, from which the coil located there has previously been ejected. The one from the bobbin frame eich puts the ejected twisted bobbin on the replaced one Take-off bobbin on. In this way the group remains formed from the pay-off bobbin and twisted bobbin together. The unwinding bobbin carrier combined with the twisted bobbin becomes from the set-up station adjacent to the twisting station step-by-step downwards, then forward to and from the standby station drove to the scene of action there.

When proceeding according to the invention, the twister has to ensure that each twisting point has at least one group, consisting of a pay-off bobbin and twisted bobbin tube or twisted bobbin, is available. Taking into account the reason The two-for-one twisting machine can reduce the number of Fadon breaks to be expected at the end of a shift, be brought into a state that allows you to continue the next shift completely without To go through supervision. This is the consequence of ' that the group-wise exchange not only when the pay-off reel runs out, but is made at every thread breakage, but the machine, regardless of whether the twister is working on the relevant spindles intervenes immediately or only continues to run undisturbed after some time.

In order to carry out the method, it is proposed, according to the invention, to provide a changing device which can be moved along the machine and which enables the changing of the take-off bobbin with the bobbin and twisting bobbin tube or twisting bobbin existing group automatically. For this purpose, it is useful a gripper that can be moved transversely to the longitudinal axis of the machine and at right angles to be provided on the changing device. Preferably a gripper in the form of a fork is used for this, which engages with its prongs in guides of the coil carrier, utn this to the height of its operating position and in reverse motion at the same time the output and allow the reel support to be replaced.

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Grippers should also be provided on the changing device that can also be moved transversely to and perpendicular to the machine axis. Preferably, these grippers should Have the form of expanding mandrels to capture the tubes of the twisted bobbins and in the ready-to-receive bobbin frames insert or remove from it. With these devices it is possible to change groups.

In the following, the invention is explained in more detail with reference to the drawings, which represent a preferred embodiment, further features of the invention have been pointed out.

Fig. 1 is a vertical section through a two-for-one twisting machine, which is placed in the area of an intermediate station

Fig. 2 is a view and

Fig. 3 is a top view of the fork for changing the bobbin

Abbο k is a view and

Fig. 5 is a plan view of the thread monitor.

In the machine frame 1, the spindle bench 3 is provided in the usual and known manner, in which the two-for-one twisting spindle 5 with their host 4 are stored. The whorls are known in Way driven tangentially by the belt 6. At 7 is a conventional pressure roller for the belt 6 indicated. The thread 9 withdrawn from the pay-off bobbin 8 runs in the usual manner Way through the hollow tube 1o and emerges radially in the turntable 11 at 12 and then runs over the thread monitor 13 and the lead roller 14 to the traversing thread guide 15, where with the help of the friction roller 16 the winding onto the bobbin tube 17 he follows. If a double stiffening is provided, that is, so that two pay-off spools 8 are arranged one above the other, so these two threads go through the path described above.

A prerequisite for the measures according to the invention to automate the processes is a special type of spindle. The carrier 18 of the coil 8

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is held in a known manner by magnets 19 and 20 in ^ uho. This carrier is not in place after one the technology belonging older proposal provided with a double bearing 21 with a conical outer surface, which is in a conical receptacle 22 of the rotating turntable 11 can be used. Dor turntable itself igt in the field of Radial opening 12 provided with "a radial slot 23, the extends into the conical Aufnahnio 22. Subject of a It is a proposal that does not belong to the state of the art also to stop the spindle in an optional position, i.e. in the present case in such a way that the slot 12/23 of the turntable always points to the same cleat. The means for the sake of clarity, -P has been left out in the illustration.

The pay-off reel carrier 18 is provided with guides 2k in order to lift the reel carrier with its bearing 21 and to move it in the direction from one machine base to the other.

A roof-shaped rail 25 is provided in the machine frame 1, which is expediently in the area of a foot 26 of the Machine frame 1 is mounted. On this along the Machine-extending rail 25 run on a single track, the wheels 27 of the U-shaped frame 28 of the changing device 29. The U-shaped frame of the changing device is also by means of a roller 3o in a U-rail 3 ^ i on the λ spindle bench 3 is attached, supported. The changing device is driven by means of the electric motor 32, the via the current collector bracket 33 from the busbars 3 ^ with Power is supplied. The power supply also serves to drive the compressor for operating the pressure cylinders. The compressor stored in the movable changing device is not visible in the drawing. It is particularly advantageous to use a pistonless compressor known per se to be provided.

A lifting device 38 can be moved on a rail 35 by means of the pressure cylinder 36 and piston rod 37 in relation to the longitudinal axis of the machine. For this purpose, roller bearings 39 are provided.

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The piston rod kl is attached to these roller loaders by means of a carrier "\ kl , which serves to guide the lifting cylinder a ko . The fork k2 is attached to the lower cylinder head 1k2 and can engage in the guides 24 of the coil carrier, as shown in particular in Fig. 3 and k . The prongs of the fork kZ are so long that two spool carriers can be picked up and transported horizontally and vertically * The fork kZ can move into the set-up point to be described later.

In a second level above the fork hZ ^{two expanding mandrels 2} O and kh are provided on the carrier 141, which serve to grasp the sleeves k% of the twisting bobbins k6 and insert them into the ready-to-receive twisting bobbins ^ 7 or remove them from it. "Dio expanding mandrels k "} / kk bostehon of a rubber body, dor means of compressed air which is supplied through dio hollow piston rod *» 8, can be extended, so as to constitute a clamp fastening for the sleeve k5 ,, the Sproizdorne h "} / kk are also by means of the pistons ^ 9 under the cylinders 5 ° pneumatically moved up and down.

Both the lifting cylinder ko and the expanding mandrel cylinder 5o are controlled via the various supply lines by means of a slide $ 1 . This is a known electrically driven slide for pneumatic program control. The individual sequences of movements for the bobbin changing device are explained in more detail below. The bobbins that can be removed from the foldable twisting coil carrier ^ 7 arrive on the path indicated by the dashed representations to the set-up tunnel 52, where they are placed on the associated bobbin carrier 18. To guide the twisting bobbin 46, a shaft 53 is provided which continues below the actual set-up point. This shaft is open at $ k so that the bobbin carrier 18 can be lifted off its spindle and moved into the setup cleat in a movement transverse to the longitudinal axis of the machine from the front to the rear. The shaft is also designed so that it can be operated from the right and left with both

-S-

Hands can reach into the shaft. Hs is expedient, the auxiliary point additionally by a spring-loaded one To secure flap 02, which is rotatable about an axis 63. At the The bobbin carrier 18 and its associated twisted bobbin are at rest 46 on dom support 55. This support is provided with a lock 56 which can be released by hand. Of the The carrier then moves down along the guide 57, namely braked by a piston movable in the cylinder 38 Piston rod 59. The carrier comes with the group consisting of coil carrier 18 and Z \ * irnspulo 46 in the dashed line beif59 indicated position. Here, the coil carrier 18 is transferred to a roller conveyor 60, which the group into that indicated by dashed lines at 61 Position conveyed where it gets into the area of the fork 42, which is indicated by dashed lines.

The machine is controlled with the help of the fadon monitor 13. As can be seen in Figs. 4 and 5, there is a thread monitor device from a known self-threading thread guide 113 with ring guide bracket 114. In the area of the thread passage studs 115 is the feeler lever under spring pressure 116 pivotable.

When yarn breakage or Ahlauf dos yarn end from the delivery bobbin 18 dor Fiihlorhebol 116 pivots to the position 116 'is a _t closed whereby the Stouorstromkrols. Closing the control circuit initiates the process for stopping the spindle and also for folding up the twisted bobbin carrier 47, bringing the changing device 29 to the fault location and locking it at this point Program control 51 provided in this changing device is switched on, which carries out the exchange of a group consisting of bobbin carrier 18 and twisting tube 45 or twisting bobbin 46. The last point of the program of this control is the unlocking of the changing device, which is thus free for further exchange tasks and thus without further ado

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BATH ORIGINAL

can be called automatically to the next door part «Hiqrboi, it is possible that after unlocking the changing device either remains at the unlocking point or is moved to a central position after being unlocked until the impulse-controlled call for a new fault occurs, so that if a new fault occurs, it is on the the shortest wave to this Stüratelle- can go. But it is also possible to move the changing device on the machine up and down »ie to have patrols _a

The machine works as follows:

It is assumed that in an operating state on the twisted parts, as shown for the spindle 5 in solid lines and as it is angodoutot for the twisting bobbin at hd ^% in dash-dotted lines, the thread 9 breaks. ev initiates the switching process ".ngo, which run according to" the following program:

The spindle. 5 is stopped, in such a way that the slot 2. ') points to the front. At the same time ulrd din Wochs.il device 29 horarigeruf'on and in area dionor gos t or ι -on .spindel verrlogelfc. Dio (Jubel hli, the prongs ii.i the rest are so long *, - daM twoi '»pul on carrier liiiitoroiniiidüi' recorded i / nr-don * ko-t-mon, hofindut« I in ■ - ■ 111 »- s -> m \ ug <iiibl i 1 π der bei \ ge · ι trU-holt nngexleufco-ton .U.ülliin »Die (Jabot ί hert al.'idann in fli-i Sie -Ll ung. I) before and seizes, ti I ο (iruppu VH / Hti, lic:; i. *: hb (; i (i \ Iwi.findot »Nuniuohr drives: Or Huhzy 1 ind« r 'm> upwards until iie (label in, - die- -> - t.el i.un »i. Γ gi» I.-uigt, (lic cattle on dor Hi »ht> Ίαι IJotri <b: i» »t (i llung dor Bpindol ^r >bofindot;, In (lionmi Vugonblick bwwMgl - siic-h dor .φπ; iv »rlorn h) abwärts.t and .irfa-; fl t. The sleeve h ^r > dar Zv / i riispule 46 and moves- ti ie in the oboro auugozog- uie> t »ilung at h6" Oleichzoitlg h.it. the Sprolzdorn hk had folded up twisted bobbin carrier Hf dio sleeve h'j, d ^ r Hpulo h6 captured, dio with dome bobbin IH and the iipule i \. to clor aug.) nbli <; klich in Botriub located ipindei ^r ) gphHrt.Dor '-iprn izdorn draws üio ripulu ho v om twisting iptilonträger h 7 from. Now I move the direction of the machine to the longitudinal axis of the machine from front to back, and with this the grave succeeds in healing the ritual. Fortunately, “i

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thorns 43/44 moved to linka by corresponding amounts. The lifting device 4o then makes a kicking movement "so that the fork goes into the Luge K." Dor coil support 18 has thereby been lifted into the position 18 · _f in which the bearing from the Aufnahmekörpor 22 is removed. The next movement step can now take place, namely the one in position F. Tn this position, the new group 8/46 is located directly on the twisting atoll, namely the bobbin carrier 18 with the bobbin 8 via the turntable and the whorl and the ■ : ■ Twisted bobbin 46 iibor dom Zv / innspulentrager 47 · All that needs to be done now is the Abnerik movement. The fork reaches the:>"tollung G. The new bobbin carrier is purchased in soihori Uifuahmokijrper 22. The previously in operation * - · WO ^ (UiO bobbin carrier 1 iV Ln't an dor 'Ulis tilt ο ITe' 4-5 - The expanding mandrels k ') and kk are freed up to the joweili>; on bobbin winding, where. "' the corresponding, to the new group {johfirende ZwirnaiHil.u h6 ne ^ above, while the expanding mandrel The twisted bobbin 46 of the group that was previously in operation is exposed, so that it can be opened with the bobbin door ^. IH verel- ■ - · ..- nifjun]: arin. The entire Hube liifichtungf ■ 38 üritl so that the Gabüi 42 as well as the expanding mandrel «43 and 44 are in the A utollunf; r-.urilclc ^ ofahron. liir <lLo fork 42 is rlloso bo L II urif-odoutot. Dio Ii o {; ram; ·. ;; touorunß now ensures that the Uechnolvorrlchtunff 29 is ontriogoit and au oliier noucn: '"> törn toi Ie ub ^ oruf« ri can be.

Da dor P.'ulon '), <lor- vnn l't'.>[><I1.j M dürr ii dan ttmrchon In hlndurch abluuf '.' U: κ> Π, ι; ι t it »r ilpule 46 linked i:; t, is represented by dl · * riLtfifL.i dot; S [>'ο ι /.1> ί · γιο:>4> caused upward, -beweijunii der / λ irn.pulo 46 lim ladon ⁽ > pulled up and at the uorbt; · .:,', αη, ί dot?>proi.vU> mi! - * 43 and with it the spool! 46 in the l'ad 'riw loht.cr 13 «ot / i - d> -n traversing thread guide 15 t <; ii} stt: i ig ο in! «'Logt, ίο dai * nai-.h H« jr ^m unt nrk lappen des Zwirnfipulnnträors d «; f' / '' i rn process oiirt, Lodor can start. Gl β inhzo it ig is il'ir Fad · . »Η ^l ) in di."^; Πιο Λ α η Fulonwachter.'J 13 arrives and is made by dom · eh tmkb iren F uleneini »igor 117 i» dio thread through-

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, BAD ORIGINAL

Aisle position II5 inserted. The pivoting movement of the insert is effected by a cylinder 118 which, under the influence of dom the program control is.

At the set-up point 52, regardless of whether a thread break has occurred or whether the pay-off bobbin 8 has run out, the group ordering from the bobbin carrier 18 and twisting bobbin kG takes out and replaces it with another group. This can be either a group in which the Fndenlauf is still not finished and only one thread break was to fix or it may be a new "group, in which the yarn let-off has not started from the coil 8, d _u h . So, the bobbin case of the coil k6 still loor i? jt. The assembly and the threading as well as the knotting takes place outside the machine and the twister can, for example, carry groups together in a cart. When the exchange has been carried out, the twister unlocks the carrier 551 so that the group can settle on the roller table 60. It is also possible not to exchange the group in the event of a thread break, but rather to tie the thread while the group is at the set-up blind.

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Claims (19)

Claims 1. Procedure sum automatic operation of two-for-one twine mnsohinc-n using twisting spindle ^ df-ren run-off spul on used outside the machine v.'erden, characterized in that 3 Take-off bobbin or, if necessary, take-off bobbins in double attachment and twisting bobbin tube or twisting bobbin are changed together and until the end of the thread run constantly a group that belongs together form. 2. The method according to claim 1, characterized in that the take-off bobbin and twisted bobbin tube or Groups consisting of twisted bobbins move around the spindle bank for the purpose of changing, preferably on a -3'1 rectangular path. 3. The method according to claim 1, characterized in that a pay-off bobbin whose bobbin has expired or whose thread is broken, and the associated twisted bobbin against a bobbin equipped with a threaded bobbin at the same time with a :. ¹ twisting tube or bobbin is exchanged. New lln * erfeaen 90 98 40/129 2 BATH ORIGINAL 4. The method according to claim 1 Ms 3, characterized in that that in the event of a thread break, the twisting bobbin and the pay-off bobbin outside the twisting point are in the vicinity brought to each other and the thread ends are knotted here, whereupon the twisting and unwinding bobbin be kept ready for automatic insertion. 5. The method according to claim 1 to 4, characterized in that that a bobbin pot occupied with a pay-off bobbin outside of the twisting point with a bobbin tube or twisted bobbin provided and the withdrawn from the pay-off bobbin and threaded into the tube Thread applied to the twisting bobbin or possibly the thread between the pay-off bobbin and Twist bobbin is knotted. 6. The method according to claim 1 biK 5, characterized in that that the exchange of the bobbin carriers in one direction of movement without a reversal of direction from a flaschinenselte to the other takes place, with the new twisting sleeve or twisting bobbin from the bobbin carrier during the exchange movement removed and inserted into the coil frame after the coil located there has been ejected. 7. The method according to claim 6, characterized in that there! 3 the twisted bobbin ejected from the bobbin frame is placed on the replaced pay-off bobbin carrier touches down. . "■. ■" - 8. The method according to claim 7, characterized in that that the run-off bobbin carrier combined with the twisted bobbin from the set-up station adjacent to the twisting station gradually downwards, then forwards to the standby station and is driven from there to the deployment site. 909840/1292 BATH ORIGINAL 9. Apparatus for practicing the method according to claim 1 to S, characterized by a changing device that can be moved along the two-for-one twisting machine (29) for automatic changing of the pay-off spool carrier (18) with spool (8) and Twisted bobbin tube or twisted bobbin existing group. 10. The device according to claim 9, characterized by one provided on the changing device (29), transversely to the longitudinal axis of the machine and vertically movable gripper, preferably in the form of a fork (42), which engages with its prongs in guides (24) of the bobbin (.18) to bring it to the level of the To lift operating position and in reverse motion at the same time the exchange and ejection of the reel carrier to be done. 11. The device according to claim 10, characterized in that on the changing device (29) two more transversely to the machine axis and vertically movable grippers, preferably in the form of expanding mandrels (43/44) are provided around the sleeves (45) of the twisting bobbins (46) and insert or remove from the ready-to-receive bobbin frames (47). 12. The device according to claim 9 - H _1, characterized in that the U-shaped frame (28) designed changing device (29) is guided on a single track outside of the machine and is supported on the spindle bank (3). 13. Device according to Claim 12, characterized by a lifting device which can be moved transversely to the longitudinal axis of the machine, preferably in the form of a lifting cylinder (40). 909840/1292 BATH ORIGINAL Λ? 14. The device according to claim 13, characterized in that da.3 on the up and down lifting cylinder (40) in two levels one above the other the fork (42) for the Bobbin carrier movement and the pneumatically movable expanding mandrels (43/44) for the approach tube or winding bobbin movement arranged nind. 15. The device according to claim 9-11 »characterized in that the set-up point ( ^l j> 2) consists of a lockable and braked downward bc we, physical carrier (55). 16. The device according to claim 9-11, characterized by a roller path (60) for the coil carrier (18) in the foot of the machine. 17. Control for the device gene "? Claim 9-16, characterized in that the thread monitor (13) the switching process for stopping the spindle (5)> folding up the bobbin frame (47) and bringing it up the changing device (29) to the Jtörungsstolle as well as their locking initiates. 18. Control / Renrli claim 17, characterized cekennzeichnc-t, because "3 au der, 3törstelle a program control provided in the changing device (29) for the group exchange is switched on, the last program point of which is the Ir.triegelung the changing device iot. 19. Control according to claim 18, thereby gckennseichnet, that the ".'ech gel device (29) after unlocking bic to-i pulse-controlled retrieval for a new fault either stops at the unlocking point, moves to a central position or discharges on the machine: i £? atrolled. 909840/1292 BATH ORIGINAL / ti Blank page