DD235238A1

DD235238A1 - METHOD FOR WINDING CHANGE IN WINDING WAVES OF LENGTH CUTTING MACHINES

Info

Publication number: DD235238A1
Application number: DD27388585A
Authority: DD
Inventors: Michael Hoffmann; Klaus Gebhardt
Original assignee: Wolfen Filmfab Veb
Priority date: 1985-03-07
Filing date: 1985-03-07
Publication date: 1986-04-30

Abstract

Die Erfindung findet beim Wickelwechsel an Aufwickelwellen der Laengsschneidemaschine fuer bahnfoermiges Material Anwendung. Ziel der Erfindung ist ein Verfahren zum Wickelwechsel, das weitestgehend mechanisiert und oekonomisch in der Anwendung ist. Das wird dadurch geloest, dass die Aufwickelwellen von Laengsschneidemaschinen mit zwei und mehr Wickelachsen mittels eines Aushebegeraetes gleichzeitig aus der Laengsschneidemaschine herausgehoben werden und in den Kassetten des Aushebegeraetes auf den mit Bund ausgefuehrten Wickelkernen aufliegen. Die Aufwickelwellen werden dann durch eine Wellenzugvorrichtung aus den Wickelkernen herausgezogen. Die in den Kassetten liegenden Wickel werden durch kurzzeitiges Neigen der Kassetten oder durch Schubeinrichtungen in den bereitgestellten Transport- und Lagercontainer ueberfuehrt. Danach sind die Kassetten mit neuen Wickelkernen zu bestuecken und mittels Wellenzugvorrichtungen werden die Aufwickelwellen eingeschoben. Die so vorbereiteten Aufwickelwellen muessen dann an der Laengsschneidemaschine zum Wellenwechsel abgelegt werden.The invention finds the winding change on winding shafts Laengsschneidemaschine for web-like material application. The aim of the invention is a method for changing the roll, which is largely mechanized and economical in use. This is solved by the take-up shafts of Laengsschneidemaschinen with two or more winding axes by means of a Aushebegeretetes simultaneously lifted out of the Laengsschneidemaschine and rest in the cassettes of the Aushebegeraetes on the running with federal winding cores. The take-up shafts are then pulled out of the hubs by a wave pulling device. The wraps in the cassettes are transferred to the provided transport and storage container by briefly tilting the cassettes or pushing devices. Then the cassettes are to be equipped with new hubs and shaft winder devices, the take-up shafts are inserted. The thus prepared take-up shafts must then be deposited on the Laengsschneidemaschine to wave change.

Description

embodiment

Die Erfindung wird an einem Ausführungsbeispiel näher erläutert.The invention will be explained in more detail using an exemplary embodiment.

Es zeigt:It shows:

Fig. 1 a das Aushebegerät nach der Entnahme der Aufwickelwellen,1 a the lifting device after removal of the take-up shafts,

Fig. 1 b die Aufwickelwellen in den Kassetten des Aushebegerätes,1 b the take-up shafts in the cassettes of the lifting device,

Fig. 2 das Aushebegerät mit der Vorrichtung zum Herausziehen der Aufwickelwellen gekoppelt, Fig. 3 das Aushebegerät mit dem zugeführten Transport- und Lagercontainer, Fig. 4 die vorbereiteten Aufwickelwellen im Aushebegerät.FIG. 3 shows the lifting device with the supplied transport and storage container; FIG. 4 shows the prepared take-up shafts in the lifting device.

Ein Aushebegerät 1, wie Fig. 1a zeigt, entnimmt der Längsschneidemaschine mit zwei Wickelachsen die zwei Aufwickelwellen mittels seiner Greifarme 3, die pro Wickelachse paarweise vorgesehen sind. Eine Schubeinrichtung 4 bewegt die Aufwickelwellen in die Kassetten 5. Diese Position ist die Ruhelage der Aufwickelwellen 2 im Aushebegerät 1 (Fig. 1 b). In der Kassette 5 liegt die Aufwickelwelle 2 mit dem Bund 6 der Wickelkerne 7 auf. Die Kassette 5 ist so ausgeführt, daß die Wickelkerne 7 in ihr axial fixiert sind.A lifting device 1, as shown in Fig. 1a, takes the longitudinal cutting machine with two winding axes, the two take-up shafts by means of its gripping arms 3, which are provided in pairs per winding axis. A push device 4 moves the take-up shafts into the cassettes 5. This position is the rest position of the take-up shafts 2 in the lifting device 1 (FIG. 1 b). In the cassette 5, the take-up shaft 2 rests with the collar 6 of the hubs 7. The cassette 5 is designed so that the hubs 7 are axially fixed in it.

Das Aushebegerät 1 wird dann zu einer Wellenzugvorrichtung 8 bewegt (Fig. 2), die die Aufwickelwellen 2 aus den Wickelkernen herauszieht. Dazu dienen spezielle über einen Spindelantrieb bewegte Greifköpfe 9, welche die Aufwickelwellen 2 fassen. Die Wickel 10 liegen nun einzeln in den Kassetten 5. Nach dem Heranführen des Transport- und Lagercontainers 11, wie es in Fig. dargestellt ist, rollen durch Neigen der Kassetten 5 die Wickel 10 auf den Bund 6 der Wickelkerne 7 in den Transport- und Lagercontainer 11. Dieser kann dann geschlossen und in ein Lager geschoben werden. Nach Anheben der Kassetten 5 des Aushebegerätes 1 werden diese wieder mit Wickelkernen 7 gefüllt. Mittels der Wellenzugvorrichtung 8 werden die Aufwickelwellen 2 in die Wickelkerne 7 eingeführt (Fig. 4). Die so vorbereiteten Aufwickelwellen 2 können dann zum Wellenwechsel an der Längsschneidemaschine abgelegt werden.The lifting device 1 is then moved to a shaft tensioning device 8 (Figure 2), which pulls the take-up shafts 2 out of the winding cores. Serve special moving over a spindle drive gripping heads 9, which hold the winding shafts 2. The reels 10 are now individually in the cassettes 5. After the introduction of the transport and storage container 11, as shown in Fig. Roll by tilting the cassettes 5, the winding 10 on the collar 6 of the hubs 7 in the transport and Storage container 11. This can then be closed and pushed into a warehouse. After lifting the cassettes 5 of the lifting device 1, these are again filled with hubs 7. By means of the wave tensioning device 8, the take-up shafts 2 are inserted into the hubs 7 (FIG. 4). The thus prepared take-up shafts 2 can then be stored for changing the shaft on the longitudinal cutting machine.

Claims

Invention claim:

A method for changing reels on take-up shafts of longitudinal cutting machines with two or more winding axles, characterized in that the coiled take-up shafts are lifted by gripping arms of a lifting device from the slitter simultaneously, the take-up in its rest position in the cassettes of the lifting device on the running with coil hubs rest on that then the take-up shafts with a Wellenzugvorrichtung pulled out of the winding cores and the winding by briefly tilting the cassettes or a push device into a transport and storage containers are performed, then that the cassettes re-equipped with hubs and the take-up shafts are inserted by means of wave tensioning device and that then provided with winding cores take-up shafts are stored by the lifting device on the slitter.

For this

2 pages drawings

Field of application of the invention

The invention relates to a method for changing from narrow windings to winding shafts of slitting machines, as used in the film and paper processing industry.

Characteristic of the known technical solutions

Web-shaped material, such. As films and paper, is made for economic reasons in very large widths and only after several processing processes cut into the required widths. This cutting takes place on slitting machines, as shown and described in DE-OS 2,856,066. The strip-cut sheet material is wound on two or more take-up shafts, each take-up shaft receiving a plurality of hubs which are wound simultaneously. The process is discontinuous, since only up to a certain diameter can be wound up. The reels must be taken from the winding cores of the take-up shafts and packed in transport and storage containers, which often have to be dustproof or light-tight. New hubs are then pushed onto the take-up shafts. There are two basic solutions. One involves the change of the take-up shafts, the other only the swinging out of the take-up shafts. The latter is described in DE-OS 2,330,464. However, such a solution can only be used if it is light winding and insensitive material. That is rarely the case. The manual removal of the winding and storage in the transport and storage containers requires a high physical use of the operating forces.

Much cheaper the process is solved in JP 57-184 046. The take-up shafts of the slitters are installed in the transport and storage containers, which are coupled to the slitter for the purpose of winding. Auxiliaries in the containers are necessary to allow the Anwickeln. After completion of the winding process, the container is released from the slitter and a new one is used. The take-up shafts can be pulled out after winding. A disadvantage is the high manufacturing expense for the container, all of which must be provided with the drive mechanism and Anwickelhilfseinrichtungen. The general high demand for storage containers makes the process very uneconomical.

Another method is explained in DD-WP 212 485. The winding shafts are constructed so that they disintegrate by corresponding displacement of the centering pin located in the winding axis in the hubs. The hubs then contain the centering bolts and are thus individually transportable and storable. To form a winding shaft, the hubs are strung together and the centering pins located therein are shifted so that they practically form a wave. Significant disadvantages of this solution are the insufficient stability of the winding shafts created thereby and the high production costs of the complicated winding cores, which must simultaneously contain the friction elements. Winding cores are needed in very large numbers, since they are necessary for the storage of the winding and for their further processing.

Object of the invention

The aim of the invention is a method for winding change in winding waves of longitudinal cutting machines, which is largely mechanized and economical in use.

Explanation of the essence of the invention

The hitherto known methods for changing the roll do not make it possible to store the rolls in special transport and storage containers without heavy physical labor of the operating forces or expensive equipment.

The invention is therefore an object of the invention to provide a method for the winding change in take-up shafts, which allows a mechanized winding removal and storage of the winding in simply designed transport and storage containers.

The object is achieved in that the wind-up of longitudinal cutting machines with two or more winding axes are lifted by means of a gripping arms lifting device simultaneously from the slitter and the take-up waves rest in their rest position in the cassettes of the lifting device on the running with federal winding cores, as Cassettes here juxtaposed, are called by webs separate chambers.

The take-up shafts are then pulled out of the hubs by a wave pulling device. The now lying in the cassettes reels are transferred by briefly tilting the cassettes or by pushing devices in the provided transport and storage container. This process can be done by the axle or in total. After that, the cassettes are to be equipped with new hubs and by Wellenenzugvorrichtung the take-up shafts are inserted. The winding shafts processed in this way must then be deposited on the longitudinal cutting machine.

The advantages of the invention are that no heavy physical work to change the roll is necessary and the process also allows the Einsastz of simply designed transport and storage containers. In addition, a higher material yield is achieved since winding damage is almost impossible.