Winding – tensioning – or guiding – Unwinding – With supply coil replenishment
Reexamination Certificate
1999-02-05
2001-08-21
Nguyen, John Q. (Department: 3653)
Winding, tensioning, or guiding
Unwinding
With supply coil replenishment
C242S559400, C414S427000, C414S648000, C414S911000
Reexamination Certificate
active
06276628
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The invention relates to an apparatus for handling reels, i.e. wound material webs, in particular of packaging material, such as paper, cardboard, tin foil or film, a reel conveyor feeding the reels individually from a stock of reels to a working journal which moves into a centre opening formed by the reel, preferably in conjunction with a packaging machine.
Thin packaging material, such as paper, tin foil or film, is provided for a packaging machine in the form of large, heavy reels. Reels are to be fed to a working journal arranged on the packaging machine, i.e. rotatable bearing journals on which the reel is mounted with its centre opening so that the material web can be drawn off as the reel revolves.
BRIEF SUMMARY OF THE INVENTION
The invention is based on the object of simplifying the automatic mechanical transfer of reels from a stock of reels to a working journal, on the one hand with regard to the arrangement of the reels in the stock of reels and on the other hand with regard to the handling and transfer of the reels to the working journal.
In order to achieve this object, the apparatus according to the invention is characterised by the following features:
a) the reels are positioned above one another in the region of the stock of reels, with their centre openings running vertically,
b) the reel conveyor has a lifting head which can be moved up and down in order to take hold of in each case one reel,
c) a reel bearing member for taking hold of a reel in a positively-locking and/or non-positively-locking manner is arranged on the lifting head,
d) after it has picked up a reel from the stock of reels, the lifting head or the reel bearing member can be rotated in such a manner that the reel can be fed to the working journal in the vertical position with the centre opening oriented horizontally.
The way in which the reels are delivered means that it is better to position them with their centre openings centred in the vertical direction. The reels are handled using a reel conveyor which is designed according to the invention and has a reel bearing member, in particular a conveyor journal, which can be moved up and down on a vertical bearing device and moves in a positively-locking and/or non-positively-locking manner into the centre opening in the top reel, then lifts this reel off the stack by moving upwards and by rotating it by 90° moves it into the transfer position in front of the working journal of the packaging machine.
One special feature of the invention lies in the handling of the lifting head with the reel bearing member for the reel. The lifting head can be moved up and down by means of a single vertical conveyor, preferably by means of an endless toothed belt. The lifting head is rotated automatically at the top end region of its upward movement by having the vertical movement translated into a rotational movement of the lifting heads by means of the corresponding actuating members.
The transfer of the reel from the conveyor journal to the working journal is also carried out mechanically, specifically by means of a slide which is arranged on the conveyor journal, can be moved in the axial direction and pushes the reel off the conveyor journal and onto the working journal.
Further features of the invention relate to the configuration and operating method of the lifting head and of the reel conveyor as well.
REFERENCES:
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Focke Heinz
Renken Jens
Focke & Co. (GmbH & Co.)
Nguyen John Q.
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