JP2006516483A - Device for transporting or retracting the initial strip - Google Patents

Abstract

A present invention relates to a device for transferring or threading beginnings of a band or strip, including an extremely thin band or strip, from a band machining unit or band processing facility to or into a further processing unit or treatment facility, such as, for example, a winding reel or winding drum.

Description

  The present invention particularly relates to an apparatus for transferring an initial strip end of an ultra-thin strip from a strip processing facility or strip processing facility to a continuous processing facility or drawing it into a take-up drum.

  Such devices are known in various implementations.

  For example, Patent Document 1 discloses such an apparatus, in which a strip-drawing carriage is provided, and this carriage is arranged at the rear stage of the drum. The strip-drawing cart has a swingable tightening device, which has a chisel at the front end. The bundle of strips on the drum can be opened with this chisel, and immediately after that, the first strip end is gripped by hydraulic pressure or magnetic force, and the subsequent strip processing equipment or strip is moved by a vertically movable carriage. It is transported to the treatment facility, that is, for example withdrawn there.

  Similarly, a vertically movable carriage is known from Patent Document 2, and this carriage carries and holds the belt plate initial end fed out from the bundle by pinching. Corresponding mechanisms are also used to carry or pull the strips that advance from the roll stand into the take-up drum.

  These devices are suitable for normal strip thickness. However, so-called ultrathin strips cannot be handled by these. Ultrathin strips include strips less than 0.2 mm thick. In order to transport or retract these strips, it is conventionally necessary to handle them by hand. This is because it is not possible to advance a thin strip over a long distance that may occur, for example, between two roll stands or between the exit of a roll stand and a subsequent drum. In practice, the strip had to be pushed or moved carefully, so that it was inevitable that the strip would be uncontrollably displaced from the center of the moving line. Another problem is that the space between the two equipment parts is narrow enough to allow only limited intervention.

However, such misalignment can cause the strip to run into the drum from an angle when it begins to wind. Therefore, a crease appears at the time of winding and the strip is inevitably damaged, or the strip is expanded or contracted.
German Patent Application Publication No. 4018950 German Patent Application Publication No. 2604909

  SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus that can automatically handle an ultra-thin strip plate mainly automatically at the time of transfer or pull-in.

  This object is according to the invention in particular to an apparatus for transferring the strip end of an ultra-thin strip from a strip processing facility or strip processing facility to a continuous processing facility or drawing it into a winding drum. A transfer table, the width of the transfer table at least matches the width of the transported strip, and the table surface has a vertical groove in the transport direction of the strip, and this vertical groove is the outermost of the transported strip. It is narrower than the narrow width, and through this vertical groove, the tension side of the conveyor belt circulating in the belt transport direction can swing forward beyond the surface of the transfer table, and can be sometimes frictionally coupled to the transported belt plate It will be solved with the device which becomes.

  Therefore, unlike the current state of the art described at the beginning, the strip is not gripped but will occasionally abut frictionally against the endlessly circulating conveyor belt. Such abutment can be carried out more carefully than conventionally applied gripping. Furthermore, it is important that the width of the conveyor belt is smaller than the minimum width of the transported strip, and basically only a very narrow strip area is gripped for transport.

  By the way, it must be distinguished that the strip to be handled can have various properties, in particular that the strip can be magnetic or non-magnetic.

  If it is a magnetic strip material, magnets are placed under the tension side of the conveyor belt that circulates endlessly, and these magnets move the belt strip at the first end toward the conveyor belt, more specifically on the conveyor belt tension side. Sucking toward the top. If a permanent magnet is used for this purpose, the action of the permanent magnet appears only when the conveyor belt is in the swinging advance state, ie above the table surface. If an electromagnet is used, the effect will only appear if the electromagnet is operating. The important thing is that the effects only appear occasionally. After transfer and / or withdrawal to the subsequent equipment, the conveyor belt is separated from the strip and the strip will then run freely between the preceding outlet and the subsequent inlet.

  If the strip is made of a non-magnetic material, a suction nozzle is arranged below the conveyor belt tensioning side, and the conveyor belt itself has openings or holes. In that case, the ultra-thin strip is placed on the upper surface of the conveyor belt tension side in a frictional manner from time to time by negative pressure. The electromagnet and suction nozzle can also be attached together below the conveyor belt tension side so that rapid conversion or switching between these conveyor systems is possible.

  Preferably, the entire apparatus is arranged so as to be able to swing. That is, the conveyor belt is moved to the transport plane for use, and oscillates from the transport plane when it is not necessary so as not to disturb the subsequent movement process.

  In the following, the present invention will be described with reference to one embodiment, but only the basic principle is shown schematically in the drawings.

  In the figure, reference numeral 1 denotes a transfer table, which has a groove 8. FIG. 1 shows the maximum strip width X and the minimum strip width Y, and it can be seen that the groove is narrower than the minimum strip width of the transported strip.

  Reference numeral 3 denotes a roll stand (or a final stand of the roller train). An alternate long and short dash line 4 indicates a pass line, and also indicates a transport plane of the advancing strip. The device according to the invention for transporting or pulling ultrathin strips has a conveyor belt circulating endlessly at 7.

  This conveyor belt is arranged so as to be swingable, which is indicated by reference numeral 2. The illustration of both positions indicates that the conveyor belt can move in and out of the transport plane, i.e. overhang from the surface or table surface of the transfer table 1 or sink below it. Below the tensioning side of the conveyor belt 7, there are either magnets or suction nozzles 6 that rely on these strips that advance from the stand—or more precisely the beginning of the strips—of the conveyor belt 7. As long as the tensioning side of the conveyor belt is in its position above the table surface, it can be frictionally contacted as a result of the movement of the conveyor belt. The end will be taken.

It is a top view of the transfer table shown with the simple aspect. It is a schematic side view of a swingable conveyor belt.

Claims (4)

  In particular, an apparatus for transferring the initial strip end of an ultra-thin strip from a strip processing facility or strip processing facility to a continuous processing facility or drawing it into a take-up drum, comprising a transfer table (1), The width of the transfer table coincides at least with the width of the transported strip, and the table surface has vertical grooves (8) in the transport direction of the strip, and the vertical grooves are smaller than the minimum width of the transported strip. Narrow, through this vertical groove, the tension side of the conveyor belt (7) that circulates in the transport direction of the strip can be swung forward beyond the surface of the transfer table and can be coupled to the transport strip in a frictional manner. Device.   2. A magnet according to claim 1, characterized in that magnets are arranged below the tension side of the conveyor belt (7), the magnets attracting the transported strip towards the upper surface of the tension side. apparatus.   The apparatus according to claim 2, wherein the magnet is an electromagnet. The conveyor belt (7) is perforated, and a suction nozzle is disposed below the tension side, and the transported belt plate is sucked toward the upper surface of the tension side by the suction nozzle. The apparatus according to claim 1.

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