EP0962564B1 - Method for controlling a sectional warper and sectional warper - Google Patents

Description

The invention relates to a method for control a warping machine, in particular a cone warping machine, with the threads to be wound onto a warp drum wound up and then together by this onto a warp beam a tree-rearing machine, in which the leading End of a thread broken during warping on the Warping drum is wound and the trailing end of the break after a winding stop, provide a marker and with the leading end of the break is wound unconnected, and where at the break during the rearrangement a Breaking releasing rearrangement stop is carried out after which the two ends of the break are joined together and that Rebuilding continues.

During warping, threads are picked up by a warping machine a warping drum wound up by spools of a creel expire. The winding takes place in strips, so that all bands give the total width of the chain to be manufactured. After the warping drum is wound to the desired extent the wrap has to go from the warping drum to a warp beam be rearranged, which is then further processed or a weaving machine can be presented.

Thread breaks can occur during warping which the warmer side, i.e. leading break end is wound up, although after detection of the thread break an immediate rewind stop was carried out. Usually can now the warping drum from the stop position be turned back until the leading end of the break exposed. Such turning back is due to the material or not always permissible for other reasons. In this The trailing end of the fall with a paper strip trained markers and the straight enclosed warmed band. In addition, such Pressing a memory key on a computer, with which every unrepaired thread break by storing in Calculator is detected. Not only the fact of the Thread break saved, but also the already sharpened Thread length or the number of revolutions of the warping drum since the beginning of warping and a key figure for the belt in which the thread break has occurred (see e.g. DE 34 32 275 A).

Before starting to rearrange all thread breaks Tapes sorted by thread length and displayed accordingly. For example, the display shows a thread break saved warping drum rotation with the associated one Number of bands. It is now possible to build the tree machine in time to stop that from switching into a crawl gear can. Stopping takes place with a speed-dependent adjustable pre-shutdown signal of the computer. In the creeper the potting machine is operated continuously a creeper button until the one in question Mark break associated with the trailing marker Fracture end exposed. It can then be the two ends of the fraction connected to each other, e.g. by knotting. To such a stop, the rearrangement is continued, until all thread breaks are repaired.

The prescribed well-known procedure is highly dependent on the care of the operation. To an optimal Manufacture the chain with high efficiency in the Sizing or weaving should be used all thread breaks that occurred during warping are repaired. Thread breaks that have not been repaired lead to standstills at Further use of the chain. The mistakes that were made in warping are numerous. For example, there is the danger that the memory key will not be pressed. Then the thread break is not registered and the computer is generated no full shutdown signal. A shutdown can only then Visibility occur, but there is a risk that the shutdown the tying machine is too late, so that the thread break runs onto the warp beam. Even if the pre-shutdown is correct through the computer or through the operation in crawling too late responding to sight of the marker or by inattentiveness that the Thread break runs onto the warp beam. During the treeing are very happy to do other work, e.g. Preparatory work for the next chain. During this time the rearing machine runs without supervision. With a computer-recorded The broaching machine does break the thread in time from, in order to use the thread break, it must first Crawl gear is time consuming to repair before the thread break can be started.

In contrast, the invention is based on the object a method with the method steps described above to improve so that misconduct in warping and / or trees and wasted time.

This object is achieved according to claims 1 and 7 in that during the rearrangement the entire warp beam width of the threads from one sensor a control signal depending on the marker is detected generated with which the Umbäumstop is initiated.

It is important for the invention that the marker is used to convert the tree machine in this way stop that the Umbäumstop is reliably brought about. It is then not possible for the thread break or the trailing end Break end can be wound on the warp beam. The rearrangement stop is brought about mechanically, namely with a sensor. The operating errors described at the beginning by not pressing a memory key on a computer or reacting too late to the sighting of the marker at Rearrangements are avoided. It is achieved that during the Rearranging other work can be done without rearrangement errors to fear.

The process is preferably carried out so that the Control signal is generated when the marker overlaps past the sensor. Once the marker Passing the sensor, the control signal will be brought about of the Umstäumstop generated. Since there is no coulter coverage when the marker passes the sensor, can also use sensors with comparatively low sensitivity be used.

The method can also be carried out so that the control signal is generated when the marker with a Thread sheet coverage of a predetermined number of layers on the sensor passes by. The control signal generated by the marker is generated early in this case. The warping drum must turn several more times, namely the predetermined number of layers accordingly until the thread break the tying machine or has reached the repair site. This method is particularly suitable for high re-treeing speeds and then when the stopping process does not take place during the rearrangement may be done abruptly, because otherwise the threads would close be heavily used or the thread breakage is not precise enough can be achieved.

It may be preferred that the potting machine be used with the Control signal is switched off and to a standstill expires, after which a rewinding of the thread sheet on the The warping drum is operated until the broken ends are exposed for connection. This procedure is particularly gentle on the thread, though is slowed down. It is also not time consuming because Pre-switching with subsequent crawling gear avoided becomes. Because the pre-shutdown must be with a not exactly predictable Safety factor take place that costs time. In contrast, rewinding only takes as long to become like the overflow time. The overflow time However, is of different lengths, so that the the aforementioned method results in a reduction in the time required, that of generating the control signal for the rearrangement stop until the machine is actually stopped in the repair position is required. This procedure is particularly then performed when the control signal is generated, if the marker passes the sensor without covering the coulter.

It may also be preferred that the piling machine be equipped with the control signal switched into a crawl gear and then is automatically switched off when necessary when the marker has reached the sensor thread without thread coulter coverage. In this case, an overflow of the thread break is avoided. A fully automatic positioning of the tree machine results and the warping drum or the thread break, around the latter to repair. There is a double use of the marker, namely for switching on the creeper and to finally switch off the rearrangement process. Here is early detection of the marker by the sensor is required, that is, if the marker is not yet directly connected to the sensor is adjacent. This procedure is therefore particularly then performed if the control signal is generated when the marker with a thread share coverage predetermined Number of layers past the sensor.

Another way to do the above The procedure is that each thread break at one Rewind stop stored in a computer and one measured warp thread length is assigned that when rearranging a pre-cut-off signal using the measured length of the warp is generated by the computer with which the tree-making machine in a crawl gear is switched, and that the taming machine from the crawl gear is turned off completely when the marker has reached a position activating the sensor. The The procedure is particularly useful when early detection is not possible, e.g. when winding metallized Threads. So it is partly done as with the previously known State of the art. Registration of the thread break in the computer with a memory key is used when an overflow when converting is not possible because the thread coulter cannot be rewound and the rearrangement stop the exact position of the thread break must result.

The invention also relates to a warping machine, especially cone warping machine with a thread to be wound band-wise warping drum, with one wound up Threads from the warping drum to a warp beam Potting machine, with a wrap, in which the Arches leading breaking end of a broken thread the warping drum wound up and the trailing end of the break after a winding stop, provide a marker and with the leading end of the break is wound unconnected, and who when rearranging at the break point with the release of the Stop breaking ends.

To such a machine to carry out one of the above To be able to use the procedure, namely in To avoid incorrect operation and / or Optimizing production, the machine is trained that a scanning the entire width of the warp beam during rearrangement Sensor is present, depending on the Marker a control signal initiating the stopping of rearrangement able to produce. The one scanning the entire width of the warp beam Sensor is able to reliably mark all markers capture. The control signal of the sensor can be in technical be processed in a conventional manner, so that a human intervention is generally not required. The Markers can be tailored to the required conditions for example, its windability and the ability to to influence the sensor at a predetermined relative position.

A preferred embodiment of the warping machine is if the marker is metallic and the sensor is metal sensitive. The metal sensitive sensor speaks to the metallic one Markers reliably so that detection errors excluded are. Capacitive and inductive Use measuring methods through which simple designs of the sensor.

It can be particularly beneficial if the marker is a plastic strip with embedded metal foil. In In this case, the metal foil can only meet the needs of the sensor or the detection process of the marker be tuned by the sensor. The metal foil can especially be very small. Then you would be for the operation is difficult to see and to mark the trailing one Breaking less suitable. For this is the plastic strip advantageous to connect to the trailing fraction end can be matched. Such a The marker is particularly well visible and above all reusable.

It may be advantageous for the sensor to be in the form of a strip Metal detector is designed. Such a strip-shaped Formations can be positioned exactly so that the Response accuracy of the sensor to passing markers is equally good in all parts of the bar. The strip-shaped Metal detector can in particular parallel to the warping drum are used and is used here to record passing Markers through remote recognition, especially with a coulter covering of the markers.

In particular a warping machine with a strip-shaped Sensor can be designed so that the sensor over the warp beam width is divided into longitudinal sections, each only monitor the adjacent winding width. A such a configuration is particularly advantageous if by dividing the sensor into longitudinal sections Monitoring of limited winding widths improves functionality of the sensor should be reached, especially if this is designed as a metal detector.

A further embodiment of the warping machine is in this regard possible that the sensor that when rearranging between the Warping drum and the threading machine guided thread band adjacent is arranged. In this area between the warping drum and the rearing machine is the space required Arrangement of the sensor available. This can be arranged at the same time be that a marker without coulter coverage past the sensor.

The warping machine can also be designed so that the sensor of the warping drum is arranged adjacent. Out of this on the one hand there is an early passing of the Markers on the sensor, leading to a correspondingly early Generation of the control signal for stopping the rearrangement leads. The rearrangement stop can be carried out in particular that the thread break does not run onto the warp beam. Especially such an arrangement of the sensor is suitable, however, a generation of the control signal to stop the rearrangement can already be achieved when a marker from the winding the warping drum is still covered. The Umbäumstop can already predetermined with a thread coulter coverage Number of layers can be initiated.

The warping machine can be further developed that the marker is provided with a microchip which has predetermined winding data. The winding data of the Microchips can be detected early by the sensor, which means that an individually adapted control of the warping machine is made possible. This speeds up the execution of a rearrangement stop. The winding data can be taken from the microchip Warping machine will be communicated to the microchip during of a take-up stop during the warping, which warp thread length was measured and / or which one Warp thread length a subsequent thread break is expected so that the rearrangement process is carried out accordingly productively can be. Becomes a warping machine Microchip not removed, so the further winding can does not start, reducing risk due to incorrect operation.

Bild 1

eine schematische Aufsicht auf eine Schäranlage mit einem Parallelgatter in schematisierter Darstellung und darüber eine entsprechende Seitenansicht,

Bild 2

eine vergrößerte Seitenansicht einer Schärmaschine, und

Bild 3

eine schematische Darstellung eines Markierers in Aufsicht.

The invention is explained with reference to an embodiment shown in the drawing. It shows:

Image 1

1 shows a schematic plan view of a warping plant with a parallel gate in a schematic representation and a corresponding side view above,

picture 2

an enlarged side view of a warping machine, and

picture 3

a schematic representation of a marker in supervision.

The warping system shown in Figure 2 essentially exists from a parallel gate 8 and a warping machine 12. The warping machine 12 has a warping drum 6 with which a bevy of threads 11 is wound in strips, each be withdrawn from coils 16. Be of the coils 16 the threads 11 each by a not shown in Figure 2 Thread braking device arranged on levels Eyelet strips 10 out, which are located at the gate exit. From the eyelet strips 10, the threads 11 run through a Kreuzschlageinrichtung 17 and a thread guide, not shown on a support 18 to the warping drum 6.

A warping machine 5 is assigned to the warping drum 6, which has a warp beam 13 parallel to the warping drum 6. The warp beam 13 is held up by two tree supports 18 and can be motor-driven in a manner not shown. The rotating drive of the warp beam 13 is used for rearrangement the threads 11 from the warping drum 6 to the warp beam 13. Das Rearranging is done to all wound on the warping drum 6 Bands, each due to the cone 6 'of the warping drum 6 have a parallelogram-like cross-sectional design, between side windows 13 'of the warp beam 13 into one Wind up the chain, which is then further processed.

Figure 2 shows a side view of the warping machine in somewhat enlarged representation to explain the thread course when rearranging. The warping drum 6 has been fully wound, and their threads 11 are over two deflecting rollers 19 on the Warp beam 13 wound between its side windows 13 '.

A sensor 4 is located between the deflecting rollers 19, which is formed like a strip and extends over the whole Warp beam width 15 extends so that this entire warp beam width the thread group of threads 11 during rearrangement can be monitored. In addition, in Figure 2 is parallel to Warping drum 6 below the deflection roller 19 near the drum Sensor 4 'shown, which is also over the entire Warp beam width 15 extends. So while the sensor 4 Threads 11 monitored between the guide rollers 19 so that the Threads close to the sensor 4 and thus free of thread coulter coverage are arranged, the on the winding of Warping drum 6 threads 11 from the sensor 4 from the Distance to be monitored.

The sensors 4,4 'are because of the monitoring of the threads 11 present on broken threads when rearranging. These thread breaks can only be determined with the sensors 4,4 'if they were previously marked during warping. Such one Marking is used, for example, as shown in Figure 3 Markers 14. The marker 14 is a plastic strip 1 with embedded metal foil 2. The metal foil 2 also works the sensor 4 or 4 'together if the latter is sufficient comes close. This is particularly the case when the sensor is Metal detector is designed. One that was hit by a marker Sensor 4,4 'emits a control signal, which to recognize there is a thread break. Such a control signal can consequently be used to stop a conversion to initiate, in which the present thread break repairs becomes. To the presence of a marker and thus To allow a rearrangement stop, the winding process must be carried out so that the marker on Winding of the warping drum can be attached. To do this proceed in a conventional manner. The winding process or Archipelago is interrupted by a winding stop as soon as there is a thread break message. Such a thread break message is generated, for example, by a thread monitor. Everyone Thread is under the control of a thread monitor, which is attached to an eyelet 10, for example. Consequently Any thread break causes the Warping machine is stopped immediately. The warping drum 6 is no longer driven, but braked and the broken one Thread 11 can either be repaired or at least marked become. Especially at higher winding speeds However, it can happen that the warp thread end, that is, the leading end of the break is wrapped in the wrap becomes. If the thread sheet is then rewound the warping drum 6 not possible up to the thread break point the thread end on the bobbin side, i.e. the trailing end Break end, marked with the marker 14 and then additional tape to be wound up.

1. Wenn ein Markierer 14 einen Sensor zum Ansprechen bringt, insbesondere den Sensor 4, so wird ein von diesem abgegebenes Steuersignal dazu benutzt, den Antrieb der Bäummaschine 5 abzuschalten. Bedarfsweise wird das Steuersignal auch dazu benutzt, die sich beim Bäumen drehende Schärtrommel 6 zu bremsen. Dabei kann die Bäummaschine 5 bis in den Stillstand auslaufen. Falls der Markierer 14 den Sensor 4 überfährt, muß die Schar der Fäden 11 zurückgewickelt werden, wenn der Fadenbruch nicht zugänglich ist. Die Schärtrommel 6 wickelt die beim Rückdrehen vom Kettbaum 15 freikommenden Fäden 11 wieder auf, bis der Fadenbruch freiliegt. Dann können das vorlaufende und das nachlaufende Bruchende miteinander verbunden werden, wodurch der Fadenbruch behoben wird. Das vorbeschriebene Verfahren wird insbesondere mit dem Sensor 4 durchgeführt, der zwischen den Umlenkwalzen 19 angeordnet ist. Falls eine Erzeugung eines Steuersignals mit dem Sensor 4' erfolgt, wird das Umbäumverfahren normalerweise so schnell gestoppt werden können, daß der Fadenbruch beim Umbäumstop nicht in den Wickel des Kettbaums 13 eingewickelt ist.

2. Wenn der Markierer 14 beim Umbäumen ein Steuersignal erzeugt, so kann dieses dazu benutzt werden, die Wickelgeschwindigkeit der Bäummaschine 5 zu reduzieren, bis Kriechganggeschwindigkeit vorliegt. Die Maschine wird dann also im Kriechgang gefahren, bis der Markierer oder die Fadenbruchstelle in den Reparaturbereich der Schärmaschine gelangt. Es kann dann ein Umbäumstop durchgeführt und die Fadenreparatur erledigt werden. Das Umstellen von Kriechgangbetrieb auf Umbäumstop kann manuell erfolgen, also auf Sicht durch die Bedienung. Vorteilhafter ist es jedoch, den Umbäumstop zu automatisieren. Dies gelingt, wenn der Markierer 14 den Sensor 4 erreicht, der dann ein weiteres Steuersignal abgibt, um den Antrieb der Bäummaschine 5 abzuschalten. Das besondere bei diesem von Hand oder automatisch durchzuführenden Verfahren ist es, daß der Sensor 4' vom Wickel der Schärtrommel 6 distanziert ist. Es wäre natürlich möglich, den Sensor 4' mit abnehmender Wickeldicke nachzuführen, um ein konstantes Ansprechverhalten des Sensors 4' ausnutzen zu können. Es ist jedoch möglich, den Sensor 4' ortsfest anzuordnen und seine Ansprechempfindlichkeit der abnehmenden Wickeldicke entsprechend zu steigern. Beispielsweise durch Steuerung der Ansprechempfindlichkeit des Sensors 4' ist es auch möglich, das Steuersignal zu erzeugen, wenn der Markierer noch von Fadenlagen der Wicklung der Schärtrommel 6 überdeckt ist. Die Überdeckung wird durch eine vorbestimmte Lagenzahl gekennzeichnet, z.B. durch eine dreilagige Fadenscharüberdeckung des Markierers 14.

3. Wenn eine Messung mit einem Sensor 4' nicht möglich ist, andererseits aber ein Einlaufen des Fadenbruchs in den Kettbaum unbedingt verhindert werden soll, weil die Kette beispielsweise nicht zurückgewickelt werden kann, kann die Abschaltung durch den Sensor 4 mit einem Teil des herkömmlichen Verfahrens kombiniert werden.

If a winding of the warping drum 6 has one or more markers 14, several methods can be carried out during the re-tanning in order to repair the existing break or several other thread breaks. First, the ends of all the tapes wound on the drum 6 are guided with their ends over the deflection rollers 19 and fastened to the warp beam 13. Thereafter, the rearing machine 5 is started. The following different procedures for repairing thread breaks can then be carried out:

1. When a marker 14 triggers a sensor, in particular the sensor 4, a control signal emitted by it is used to switch off the drive of the tree machine 5. If necessary, the control signal is also used to brake the warping drum 6 rotating in the trees. The piling machine 5 can run to a standstill. If the marker 14 passes over the sensor 4, the family of threads 11 must be rewound if the thread break is not accessible. The warping drum 6 winds up the threads 11 released from the warp beam 15 when it is turned back until the thread break is exposed. Then the leading and trailing end of the break can be connected to each other, thereby eliminating the thread break. The above-described method is carried out in particular with the sensor 4, which is arranged between the deflecting rollers 19. If a control signal is generated with the sensor 4 ', the rearrangement process will normally be able to be stopped so quickly that the thread break during the rearrangement stop is not wrapped in the winding of the warp beam 13.

2. If the marker 14 generates a control signal during rearrangement, this can be used to reduce the winding speed of the tufting machine 5 until the creeper speed is reached. The machine is then crawled until the marker or the thread breakage reaches the repair area of the warping machine. It can then be stopped and the thread repair can be done. The switch from creeper mode to conversion stop can be done manually, i.e. at the operator's point of view. However, it is more advantageous to automate the rearrangement stop. This succeeds when the marker 14 reaches the sensor 4, which then emits a further control signal in order to switch off the drive of the building machine 5. The special thing about this method, which can be carried out manually or automatically, is that the sensor 4 'is distanced from the winding of the warping drum 6. It would of course be possible to track the sensor 4 'with decreasing winding thickness in order to be able to use a constant response behavior of the sensor 4'. However, it is possible to arrange the sensor 4 'in a fixed position and to increase its response sensitivity in accordance with the decreasing winding thickness. For example, by controlling the response sensitivity of the sensor 4 ', it is also possible to generate the control signal when the marker is still covered by thread layers of the winding of the warping drum 6. The overlap is characterized by a predetermined number of layers, for example by a three-layer sheet share overlap of the marker 14.

3. If a measurement with a sensor 4 'is not possible, but on the other hand it is imperative to prevent the thread break from entering the warp beam, for example because the chain cannot be rewound, the sensor 4 can switch it off using part of the conventional method be combined.

It is then when winding the threads 11 on the warping drum 6 in the case of a winding stop, each thread break in a computer 7 and saved each thread break warp thread length measured during winding up to thread breakage assigned. This can also be done in a conventional manner Operation of a memory key 3 of the computer 7 can be achieved. After the trailing end of the break with a marker 14 provided and thus added to the tape to be wound up the winding of the tape and other tapes carried out, possibly using additional markers 14 for corresponding thread breakages.

When rearranging, the warp thread lengths are then measured all markers before reaching these warp thread lengths each generated a pre-shutdown signal from the computer 7. Before thus a marker 14 reaches a sensor 4 or 4 ', in particular the sensor 4, the tree-making machine 5 becomes one Creeper gear switched, runs with comparatively less Felling speed further. As soon as a marker 14 reaches a position activating the sensor 4 'or 4, a rearrangement stop is carried out by the drive of the rearing machine 5 switched off immediately or after a predetermined time becomes. It can thereby be achieved that the respective Thread break comes to rest and repairs exactly as intended can be.

Claims (14)

1. Process for controlling a warping machine, in particular a cone warping machine (12) with which winding threads (11) are wound in bands onto a warping drum (6) and then together are transferred from this warping drum onto a warp beam (13) of a beaming machine (5), wherein the leading broken end of a thread broken during warping is wound onto the warping drum (6) and the trailing broken end is provided with a marker (14) after a winding stop and is wound unconnected to the leading broken end, and wherein during the transfer a transfer stop exposing the broken ends is carried out at the break site, whereupon the two broken ends are connected to each other and the transfer is continued, characterised in that during the transfer the total warp beam width (15) of the threads (11) is detected by a sensor (4, 4') which produces a control signal in dependence upon the marker (14), by means of which signal the transfer stop is initiated.
2. Process according to claim 1, characterised in that the control signal is produced when the marker (14) passes the sensor (4) without overlapping of the yarn sheet.
3. Process according to claim 1 or 2, characterised in that the control signal is produced when the marker (14) passes the sensor (4') with yarn sheet overlap of a predetermined number of layers.
4. Process according to one or several of claims 1 to 3, characterised in that the beaming machine (5) is switched off by the control signal and runs until it comes to a standstill, whereupon the yarn sheet is rewound onto the warping drum (6) until the broken ends are exposed for connection.
5. Process according to one or several of claims 1 to 4, characterised in that the beaming machine (5) is switched by the control signal into a creep mode and then is automatically switched off if necessary when the marker (14) has reached the sensor thread [sic] (4) without overlapping of the yarn sheet.
6. Process according to one or several of claims 1 to 5, characterised in that each thread break is stored in a computer (7) during a winding stop and is allocated to a measured warp thread length, that, using the measured broken warp thread length, a pre-switch-off signal is produced by the computer (7) during transfer, by means of which the beaming machine (5) is switched into a creep mode, and that the beaming machine (5) is fully switched out of the creep mode when the marker (14) has reached a position which activates the sensor (4).
7. Warping machine, in particular a cone warping machine (12) having a warping drum (6) which winds winding threads (11) in bands, having a beaming machine (5) transferring the wound threads (11) from the warping drum (6) onto a warp beam (13), having a winding arrangement wherein the broken end of a broken thread leading during warping is wound onto the warping drum (6) and the trailing broken end is provided with a marker (14) after a winding stop and is wound unconnected to the leading broken end, and which, during transfer, is stopped at the break site leaving the broken ends exposed, for carrying out the process according to one or several of claims 1 to 6, characterised in that a sensor (4, 4') is provided which senses the whole warp beam width (15) of the threads (11) during transfer and can produce a control signal initiating a stop in the transfer in dependence upon the marker (14).
8. Warping machine according to claim 7, characterised in that the marker (14) is metal and the sensor is metal-sensitive.
9. Warping machine according to claim 7 or 8, characterised in that the marker (14) is a synthetic material strip (1) with an inserted metal sheet (2).
10. Warping machine according to one or several of claims 7 to 9, characterised in that the sensor (4, 4') is formed as a strip-like metal-locating device.
11. Warping machine according to one or several of claims 7 to 10, characterised in that the sensor (4, 4') is divided into longitudinal portions over the warp beam width (15), which longitudinal portions each monitor only the winding width adjacent thereto.
12. Warping machine according to one or several of claims 7 to [...], characterised in that the sensor (4) is disposed adjacent to the thread band guided, during transfer, between the warping drum (6) and the beaming machine (5).
13. Warping machine according to one or several of claims 7 to 12, characterised in that the sensor (4') is disposed adjacent to the warping drum (6).
14. Warping machine according to one or several of claims 7 to 13, characterised in that the marker (14) is provided with a microchip which includes predetermined winding data.

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