EP1004535B1 - Method for operating an automatic cross-winding machine during batch changing - Google Patents

Description

The invention relates to a method for performing a Batch change on an automatic winder according to Preamble of claim 1.

Modern automatic winding machines usually have a large number similar winding sections arranged in sections and a Transport system for supplying and disposing of these winding units Spinning bobbins or empty tubes. Within a such a transport system, which is known to be several different transport routes, including those to the Has winding stations leading cross transport routes run Transport plate with vertically arranged mandrels around, on which either spinning bobbins or empty tubes are transported. In the field of these transport systems are usually also Processing stations for the spinning heads or for the empty tubes, such as cop preparation stations, Case guard, case cleaner, etc. arranged.

The transport system of an automatic winder can either directly via a so-called converter Transport system of an upstream spinning bobbin producing textile machine, one speaks then from a textile machinery network, or the transport system of the automatic winder is via a special interface with spinning heads of a separately arranged ring spinning machine supplied or disposed of empty tubes.

Such an interface consists, for example, of an im Area of a so-called takeover line arranged Kopsaufsteckeinrichtung of a flat circular conveyor is connected upstream and a sleeve pulling device. Both head attachments e.g. through the (DE 33 48 033 C2), as well as flat round conveyors e.g. through the (DE 41 12 434 A1) or sleeve pulling device by (DE 44 46 161 A1) known in principle.

With such a separate winding machine transport system are delivered in relatively large transport containers Spinning bobbins in the flat round conveyor initially isolated and aligned. Then the spinning bobbins through the Kopsaufsteckeinrichtung on the rotating in the transport system Transport plate positioned.

Spooled empty tubes are removed by the tube pulling device removed from the transport system and in a transport container stored.

The number exceeds with the aforementioned transport systems the number of the transport plates rotating in the transport system the winding units of the automatic winder are mostly clear, the number of rotating transport plates is preferably about five times the number of winding units. Because these transport plates initially when changing lots must be cleared, but in the transport system can remain with such transport systems as they are also known, for example, from DE 42 33 819 A1 There are problems with the logistics of the transport plates, which lead to a lot change, which is known to always Loss of production means that it takes a relatively long time.

Starting from automatic winding machines of the type described above Genus or their transport systems is the Invention based on the object of developing a method that is the implementation of a game change on such Cross winder improved.

According to the invention, this object is achieved by a method as described in claim 1.

Advantageous embodiments of this method are the subject of subclaims.

The method according to the invention has the advantage over the previously known methods that the clearing of the old yarn section, the intermediate storage of the empty transport plates and the filling of the new yarn section take place in a completely controlled manner from the start.
The transverse transport routes leading to the winding stations are used as a buffer which can be loaded in a defined manner for empty transport plates, without any additional blocking or control means being necessary in the entrance area of these transverse transport routes.
This means that when the spinning bobbins of an old yarn section are cleared away, the empty transport plates disposed of by spinning bobbins are immediately removed from the transport circuit of the automatic winder and distributed over the storage section in sections to the transverse transport sections. Three of a total of five transport plates per winding unit are inserted one after the other into the transverse transport lines.
At the end of the clearing process, the two remaining transport plates are temporarily stored on the tube return line or the distribution line and are there immediately ready for filling with spinning heads of a new batch of yarn.

When filling the cheese winder with spinning heads a new one Yarn section is through the targeted discharge of the Empty, empty, temporarily stored cross transport routes Transport plate also ensures that all winding units of the automatic winder relatively evenly with spinning bobbins new yarn section and thus all winding units can go into production at the same time.

Since the intermediate storage of empty transport plates in the transverse transport routes of a cleared winding unit sections has already begun, while the transverse transport routes of adjacent winding unit sections are still being cleared and, moreover, it is ensured that all winding units of the automatic winder can go into production immediately, the batch changing method according to the invention is characterized by great speed.
The method according to the invention leads overall to an improvement in the efficiency of an automatic winder.

It has been found to be particularly advantageous in claim 2 Proven procedures proved to be easy in this way spinning head-loaded transport plates are still possible must be unloaded and empty transport plates that should be cached, easily and securely separate.

The method step set out in claim 3 ensures in particular in connection with those in claims 11 and 12 procedural steps outlined, on the one hand, that the Ejecting the spinning reel-loaded transport plates from the Cross transport sections of a winding unit section are carried out quickly, on the other hand, it is avoided in this way that it on the Sleeve return path to a jam of the discharged Transport plate and thus to jam this Transport plate in the mouth area of the cross transport lines can come because such jams can often only be remedied manually are.

In a preferred embodiment, as set out in claim 4, it is provided that the branch lines arranged first with respect to the conveying direction of the cop feed line discharge the spinning head-carrying transport plates to the storage line, while the rear one of the branch lines delivers the transport plates to the head supply line.
Since the transport plates diverted to the cop feed line are first retrieved, the transport stream of spinning head-carrying transport plates to be unloaded in a removal line can be somewhat evened out in this way.

The process steps described in claims 5 and 7 ensure that the leading to the cross transport routes Storage path, especially in the area of the rear Branch line is cleared immediately, so immediately with the insertion of empty transport plates into the Cross transport lines of the first cleared winding section can be started.

One preferably arranged in the area of a pull-off section Cop removal device ensures that the spinning cops of the old yarn section continuously and the yarn layers gently from the transport plates are taken (claim 6).

Those described in claims 8 to 10 Process steps also have a very positive effect a rapid sequence of the lot change process and thus on the efficiency of the cheese winder, as this Process steps either empty the intermediate storage Accelerate transport plate (Claim 8) or the even Fill all winding units of the automatic winder with Ensure spinning heads of the new yarn section (demands 9.10).

Further details of the invention are as follows based on the drawings embodiment removable.

Fig. 1

eine Draufsicht auf das Transportsystem eines Kreuzspulautomaten während des normalen Spulbetriebes,

Fig. 2 bis 8

die einzelnen Verfahrensschritte beim Durchführen des erfindungsgemäßen Partiewechselverfahrens.

It shows:

Fig. 1

a plan view of the transport system of a cheese winder during normal winding operation,

2 to 8

the individual process steps when carrying out the batch change process according to the invention.

A transport system 21 of an automatic winding machine (not shown) is indicated schematically in FIG.
In the exemplary embodiment shown, spinning copes, which were produced on a separately standing ring spinning machine, are fed to the transport system 21 via an interface, a so-called cop attachment 22.
Empty tubes are disposed of via the tube pulling device 20 and then conveyed back to the ring spinning machine.

Figure 1 shows a situation as it happens during represents the normal winding operation. Such, in itself known transport systems 21 have a large number different transport routes over which the winding units the automatic winder with spinning bobbins be disposed of by empty tubes.

In Figure 1 is in the area of a takeover line 1 Flat circular conveyor 20 with a cop attachment 22 and an empty sleeve pulling device 23 is indicated. As known, joins in with such transport systems Takeover line 1 a Kopszuführstrecke 2, from the Branch or preparatory sections 3a, 3b, 3c. The Detachment or preparation routes 3a, 3b, 3c are over Transport routes 4 connected to a storage route 5, which in turn has numerous cross transport routes 6 a sleeve return path 8 is connected. To the A return section 9 closes a sleeve return section 8 which flows into takeover route 1.

The sleeve return path 8 is also a Connection path 7 connected to the cop feed path 2. In the area of the link 7 and in the area of Sleeve return path 8 are defined actable Stop devices 25a and 25b installed.

From the distributor section 9, on which a sleeve monitor 15 is arranged, a so-called transverse passage 10 extends, which extends between the distributor section 9 and the cop feed section 2, to which a sleeve cleaning section 11 with a sleeve cleaner 16 arranged there is connected.
The sleeve cleaner section 11 finally merges into a manual preparation section 12 which functions as a peeling section.
The cop pulling device 26 is arranged in the area of the pull-off section 12.

During normal winding operation run within the Transport systems 21 numerous transport plates around either are equipped with spinning bobbins or empty tubes. The Transport plates are usually only in the area Takeover path 1 between the empty tube pulling device 23 and the Kopsaufsteckeinrichtung 22 briefly empty.

1 shows spinning head-carrying transport plates with 19, empty transport plates with 18 and empty ones Transport plate marked with 17. The transport plate run within the transport system 21 in the transport direction T around.

FIG. 2 shows the situation at the beginning of the batch change process according to the invention.
The winding units (not shown) of the automatic winder have stopped their winding operation. The bobbin plug-in device 22 arranged in the area of the take-over line 1 is switched to “locks”, that is, incoming empty transport plates 17 are no longer fitted with spinning bobbins, but instead run directly to the bobbin feed line 2.
At the same time, the branching and preparation lines 3a, 3b and 3c are controlled in such a way that the spinning head-carrying transport plates 19 standing on these lines are discharged.
The transport plates 19 standing on the branching and preparation lines 3a and 3b are sent via the removal lines 4 to the storage path 5, while the transport plates 19 of the branching and preparation line 3c are discharged to the cop feed line 2.

At the same time, each of all transverse transport routes 6 becomes one spinning head carrying transport plate 19 on the Sleeve return path 8 out and the Link 7 temporarily taken out of service.

The spinning head-equipped transport plate 19 are from Sleeve monitor 15 is diverted to the withdrawal section 12 and there either mechanically by means of a cop pulling device 26 or unloaded manually by the operating personnel.

Transport plate 18 carrying empty tubes sluices the Sleeve watchers to takeover line 1, where they through a Empty sleeve puller 23 are freed from the sleeve.

As can be seen from Figure 3, the drive of the Storage path 5 controlled so that in normal Reversing driven conveyor belt Storage path 5 maintains a running direction that is opposite to the conveying direction of the cop feed path 2. Because of this running direction, the storage path 5 in Area of the winding unit section A of spinning head-carrying Transport plates cleared. From the winding unit section A also successively spinning head-loaded transport plates discharged; the discharge takes place so that all Cross transport lines 6 of the winding unit section A each at the same time a transport plate 19 to the sleeve return section Hand over 8.

As can be seen from FIG. 3 and in particular from FIG. 4, while the winding unit section A is still being cleared from transport plates 19 loaded with spinning bobbins, empty transport plates 17 are already brought in via the bobbin feed path 2.
As indicated in FIG. 4, these empty transport plates 17 are already introduced into the transverse transport paths 6 of the cleared winding unit section A via the branching and preparation path 3c, while the clearing of the transverse transport paths 6 is still running in the winding section B.
As soon as the winding unit section A is cleared, the link 7 is also put back into operation.

When the empty transport plate 17 is temporarily stored the storage path 5 in the area of the winding unit section A first switched in the R direction.

Also when clearing the winding unit section B is in each case At the same time, one crosshead loaded per cross transport line 6 Transport plate 19 removed. This process step will repeated until this winding section too is cleared.

In the manner described above, all are successively Bobbin sections A, B, C etc. of the automatic winder from spinning head carrying transport plates 19 and exempt them Transport plate in the withdrawal section 12 from the spinning heads of old thread section emptied. At the same time, in corresponding order on the Kopszuführstrecke 2 and Branch and preparation section 3c Transverse conveying lines 6 of the winding unit sections A, B, C etc. refilled with empty transport plates 17, like this is indicated for example in Figure 5.

As soon as the first winding section, in the present Embodiment the winding unit sections A and B of spinning head-carrying transport plates 19 are exempted Stop device 25 in the area of the sleeve return path 8 activated. The spinning head carrying transport plates 19 are as long in front of the stop device 25 until all Bobbin sections are cleared. Then the Stop device 25 deactivated and the transport plate on the Pulling section 12 freed from the spinning cops.

FIG. 6 shows a situation as it appears when all spinning bobbins and empty tubes of the old batch of yarn from the Transport system 21 of the cheese winder are removed and in the transverse transport routes 6 and on the Sleeve return section 8 or on the distribution section 9 only still empty transport plate 17 for receiving the spinning heads ready new thread section. As indicated are about 60% of the empty transport plates in the cross transport routes 6 and about 40% on the sleeve return path 8 cached.

The subsequent filling of the winding units of the Cross winder with spinning heads of the new yarn section is running in principle similar to that described above Emptying.

As indicated in FIG. 7, the empty transport plates 17 on the tube return path 8 on the cop attaching device 22 are first equipped with spinning bobbins of the new yarn section.
These transport plates 19 are conveyed via the cop feed line 2 to the branching and preparation lines 3a and 3b and are processed there, as usual, by the preparation stations 14a and 14b. The spinning bobbins prepared on the preparation stations 14a and 14b reach the storage path 5 via the preparation lines 3a and 3b or the removal lines 4, the conveyor belt of which initially runs in the direction of the front preparation station 14a.

At the same time, an empty transport plate 17 is removed from all the transverse transport routes 6 of the transport system 21, as indicated in FIG. 7, and space is thus created in the transverse transport routes 6 for accommodating one transport plate 19 equipped with a spinning cop.
Via the storage path 5, which is switched at least temporarily to return R, these free spaces on all transverse transport paths 6 are filled up with a transport plate which carries a spinning cop of the new yarn section.

The above procedure is repeated until all are empty Transport plate 17 from the transverse transport routes 6 discharged and evenly through transport plate 19, the Bear spinning bobbins of the new yarn section, are replaced.

In the manner described above, it is prevented that individual winding units cannot go into operation as a result of a lack of spinning cops. This means that it is ensured that all winding units of the automatic winder can start operating simultaneously.
The batch change process is now complete, the cheese winder returns to normal winding operation.

Claims (12)

1. Method for carrying out a batch change in an automatic cheese winder comprising a large number of identical winding stations arranged in sections and a transportation system (21) for supplying to and collecting from the winding stations, wherein transport trays (17) for supplying spinning cops or empty tubes circulate within the transportation system and the winding stations have a plurality of transverse transport paths (6) which receive of transport trays and are supplied with spinning cops from a storage path (5), characterised in that,

   initially an old yarn batch is cleared section by section, the cleared spinning cops carrying transport trays (19) being emptied without delay,

   the empty transport trays (17) in the transverse transport paths (16) are already temporarily stored when the transverse transport paths of adjacent winding station sections are still being cleared,

   during subsequent filling of the automatic cheese winder with spinning cops of a new yarn batch, one respective empty transport tray (17) per transverse transport path of the winding station sections is gradually cleared and the free places on the transverse transport paths thus occurring are uniformly filled with transport trays loaded with spinning cops via the storage path (5).
2. Method according to claim 1, characterised in that a start is made with clearing the old yarn batch and temporary storage of empty transport trays in the transverse transport paths in the last winding station sections, viewed in the conveying direction of a cop feed path.
3. Method according to claim 1 and 2, characterised in that at the start of clearing the old yarn batch, one respective spinning cop-carrying transport tray per transverse transport path of the relevant winding station section is cleared toward a tube return path.
4. Method according to claim 1, characterised in that branch paths branching off from the cop feed path are triggered in such a way that the last branch path with respect to the conveying direction of the cop feed path clears the spinning cop-carrying transport trays towards the cop feed path and therefore, via a connecting path toward the tube return path, while the branch paths arranged first in the conveying direction of the cop feed path deliver the spinning cop-carrying transport trays to the storage path.
5. Method according to any one of the preceding claims, characterised in that once the preparation paths arranged in the region of cop-preparing stations have been emptied, the drives of the storage path are triggered via the branch paths in such a way that the spinning cop-carrying transport trays located on the storage path are transported on the storage path counter to the conveying direction of the cop feed path.
6. Method according to any one of the preceding claims, characterised in that the transport trays loaded with spinning cops and gradually cleared from the transverse transport paths of the winding station sections are unloaded on a doffing path.
7. Method according to claim 1, characterised in that the empty transport trays advanced on the cop-feed path are guided via the last branch path onto the storage path and are thereby fed into the transverse transport paths of the cleared winding station sections.
8. Method according to claim 7, characterised in that at the beginning of the temporary storage of empty transport trays in the transverse transport paths of the initially cleared winding station section, the relevant storage path portion initially has a conveying direction counter to the remaining storage path.
9. Method according to claim 1, characterised in that while the automatic cheese winder is being filled with a new yarn batch, the spinning cop is guided onto the storage path via the leading branch paths and is fed via these into the transverse transport paths of the winding station sections.
10. Method according to claim 9, characterised in that while a new yarn batch is being filled on the storage path, the spinning cops are initially transported counter to the conveying direction of the cop feed path and are subsequently transported in the conveying direction of the cop feed path.
11. Method according to any one of the preceding claims,
    characterised in that the connection path is temporarily switched off before the start of emptying the last winding station sections, viewed in the conveying direction of the cop feed path.
12. Method according to any one of the preceding claims, characterised in that once the transverse transport paths of some winding station sections have been emptied, a stop device installed on the tube return path is activated which banks up the transport trays loaded with spinning cops.

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