EP1004535A2 - Method for operating an automatic cross-winding machine during batch changing - Google Patents

Abstract

Between textile production batches, bobbins are changed in an automatic traverse winding frame which has numerous identical winding heads arranged in sections, with feed and removal transport passages. The transport passages run through many different paths including via transverse routes. Dishes run through the passages with bobbins and empty sleeves. The old batch of yarn is removed section by section. Each section of bobbins is progressively emptied via the transverse passages. Empty dishes are transported to a group of winding heads, while the adjacent group is cleared. While the machine is charged with bobbins for the new batch, an empty dish is released from each transverse passage, and the dish replaced in the passage from the holding passage.

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 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 machine 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 a cop attaching device arranged in the area of a so-called take-up section, which is preceded by a flat circular conveyor and a sleeve pulling device.
Both Kops slip-on devices, for example by (DE 33 48 033 C2), and flat circular conveyors, for example by (DE 41 12 434 A1), or sleeve pulling devices by (DE 44 46 161 A1) are 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 temporarily stored.

In the case of the aforementioned transport systems, the number of transport plates rotating in the transport system usually significantly exceeds the number of winding units of the automatic winder, preferably the number of rotating transport plates is approximately five times the number of winding units.
Since these transport plates must first be cleared when changing lots, but remain in the transport system, problems with the logistics of the transport plates can arise with such transport systems, as are also known for example from DE 42 33 819 A1, which lead to that a lot change, which is known to always mean loss of production, 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 cleared 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 temporarily loadable intermediate stores 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 neighboring 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.
Overall, the method according to the invention leads 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 it is possible that the transport plate is loaded with must be unloaded and empty transport plates that should be cached easily and safely 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 pull-off 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 automatic winder because this Process steps either empty the intermediate storage Accelerate the transport plate (Claim 8) or the even one 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 lot change process according to the invention.

In Figure 1, a transport system 21 is schematically one (not shown) indicated automatic winding machine. In the illustrated embodiment, the transport system 21 via an interface, a so-called Kopsaufsteckeinrichtung 22, spinning bobbins separated on a standing ring spinning machine were manufactured. Empty tubes are disposed of via the tube pulling device 20 and then transported 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 are 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 sleeve section 9 closes a distributor section 9 which flows into takeover route 1.

The sleeve return path 8 is also a Connection section 7 connected to the cops feed section 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 distribution line 9 on which a sleeve monitor 15 is arranged, a so-called goes between Distribution line 9 and Kopszuführstrecke 2 extending Transverse passage 10 to which a sleeve cleaning section 11 with a sleeve cleaner 16 arranged there is connected. The sleeve cleaner section 11 finally goes into a Pull-off section, manual preparation section 12. The cop pulling device is in the area of the pull-off section 12 26 arranged.

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 of Takeover path 1 between the empty sleeve 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 plates run within the transport system 21 in the transport direction T around.

Schleusen" geschaltet, das heißt, ankommende, leere Transportteller 17 werden nicht mehr mit Spinnkopsen bestückt, sondern laufen direkt zur Kopszuführstrecke 2 durch. Gleichzeitig werden die Abzweig- und Vorbereitungsstrecken 3a, 3b und 3c so angesteuert, daß die auf diesen Strecken stehenden spinnkopstragenden Transportteller 19 ausgeschleust werden.
Die auf den Abzweig- und Vorbereitungsstrecken 3a und 3b stehenden Transportteller 19 werden dabei über die Abtransportstrecken 4 zur Speicherstrecke 5 geschickt, während die Transportteller 19 der Abzweig- und Vorbereitungsstrecke 3c zur Kopszuführstrecke 2 hin ausgeschleust werden.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 cop attachment device 22 arranged in the area of the takeover section 1 is open

Locks "switched, that is, arriving, empty transport plates 17 are no longer loaded with spinning bobbins, but instead run directly to the cops feed path 2. At the same time, the branching and preparation lines 3a, 3b and 3c are controlled such that the spinning head-carrying transport plates standing on these lines 19 can be removed.
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 the 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 a cop puller 26 or unloaded manually by the operating personnel.

Transport plate 18 carrying empty tubes sluices the Shell 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 of the 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 removed; 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 line 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 of 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 cached the storage path 5 in the area of the winding unit section A first switched in the R direction.

Also when clearing the bobbin section B is in each case at the same time per cross transport section 6 loaded with spinning bobbins Transport plate 19 removed. This process step will repeat 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 unit sections, 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 spin head-carrying transport plates 19 are as long as pent up 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 new thread section is ready. 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 Drain.

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 a 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 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 even through the 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 due to a lack of spinning cops. This means that it is guaranteed 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)

Process for carrying out a batch change on an automatic winder which has a large number of identical winding sections arranged in sections and a transport system for supplying and disposing of the winding stations, with transport plates circulating within the transport system for conveying spinning bobbins or empty cores and the winding stations taking up transverse transport lines accommodating several transport plates which are supplied with spinning bobbins from a storage section,
characterized, that an old section of yarn is first cleared in sections, the discharged, spinning head-carrying transport plates being emptied immediately, that the empty transport plates are already temporarily stored in the transverse transport routes of a cleared winding unit section when the transverse transport routes of adjacent winding unit sections are still being cleared, that during the subsequent filling of the automatic winder with spinning heads of a new yarn section, an empty transport plate is successively discharged per transverse transport section of the winding unit sections and the resulting free spaces on the transverse transport lines are filled up evenly with transport plates loaded with spinning bobbins over the storage section. A method according to claim 1, characterized in that with clearing the old yarn section and temporarily storing it empty transport plate in the cross transport routes which, seen in the direction of conveyance of a cop feed path, last winding unit sections is started. A method according to claim 1 and 2, characterized in that successively at the beginning of clearing the old yarn section in each case per cross-transport route of the concerned Bobbin section a spinning head-carrying transport plate is discharged onto a sleeve return path. A method according to claim 1, characterized in that from branch lines outgoing to the cops feed line in this way can be controlled that with respect to the direction of conveyance the last branch of the cops feed line spinning head-carrying transport plate to the bobbin feed line and thus over a link to Ejector sleeve return path out while the in Direction of conveyance of the cop feed path arranged first Branch lines to the spinning head-carrying transport plates Give up the storage path. Method according to one of the preceding claims, characterized characterized in that after emptying in the range of Cop preparation stations arranged Preparation lines via the branch lines the drives the storage path are controlled so that the on the Storage line located spider head-carrying Transport plate on the storage line against the Direction of conveyance of the cop feed path are transported. Method according to one of the preceding claims, characterized characterized in that the successive from the Cross transport sections of the winding unit sections ejected, spinning head-loaded transport plate be unloaded from a haul-off line. A method according to claim 1, characterized in that the empty ones brought up on the cop feed path Transport plate over the last branch to Storage route passed and through this in the Cross transport lines of the cleared winding unit sections be fed. A method according to claim 7, characterized in that to Start of temporary storage of empty transport plates in the cross transport routes of the first cleared Bobbin section of the concerned Storage section first one to the rest Storage path has opposite conveying direction. A method according to claim 1, characterized in that the Spinning heads when filling the automatic winder with a new yarn section over the front branches on the Storage route passed and through this in the Cross transport sections of the winding unit sections fed become. A method according to claim 9, characterized in that the Spinning heads when filling a new batch of yarn on the Storage section initially against the direction of conveyance Kopszuführstrecke and then in the conveying direction of the Cop feed line can be transported. Method according to one of the preceding claims, characterized characterized in that before the start of emptying the in Direction of conveyance of the cop feed line seen last Spool section temporarily the link is switched off. Method according to one of the preceding claims, characterized characterized in that after emptying the Cross transport sections of some winding unit sections one stop device installed on the sleeve return line is activated, the spinning head-loaded transport plate dammed up.

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