G - Physics
06
M
201/75
G06M 7/00 (2006.01) G11B 7/26 (2006.01) G11B 23/00 (2006.01)
Patent
CA 1230307
ABSTRACT OF THE DISCLOSURE Strict care must be taken in the mass production of high packing density, disc-shaped information carriers such as repre- sented, for example, by the manufacture of compact discs, that no mix-ups occur of workpieces having different informational content during the production sequence. Proceeding on the basis that disc magazines are employed for conveying the disc-shaped workpieces from one work station to the next, it is proposed that the disc magazines have a processing sequence for the workpiece stack they contain which is rigidly defined for all work stations by means of fitting parts. Also, each workpiece stack and thus each disc magazine accepting a workpiece stack therein is accompanied by an identifier disc whose shape corresponds to the shape of a workpiece. The identifier disc thus assumes the initial position in the rigidly defined hierarchy of a workpiece stack within a disc magazine. This identifier disc is read first at an input side of a work station by means of a read unit before the working-off of the workpiece stack contained in the disc magazine is undertaken in the prescribed sequence.
459650
Drechsler Klaus D.
Heuer Werner
Tiebel Rainer
Fetherstonhaugh & Co.
Polygram G.m.b.h.
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