Rack transport control apparatus for a manufacturing line

Details Rack transport control apparatus for a manufacturing line Rack transport control apparatus for a manufacturing line

1993-03-16

1994-12-13

Mai, Tan V.

Boots, shoes, and leggings

364468, G06F 1546

Patent

active

053734513

ABSTRACT:
An apparatus is provided for controlling transport of racks in a manufacturing line which includes a series of processes and has buffers associated with the respective processes for temporarily keeping racks carrying semimanufactured articles to be transported to the respective processes. The apparatus includes a host computer having a memory and being in communication with the processes and with the buffers, and a carry-out request table stored in the memory for recording rack carry-out requests from the processes. The host computer includes request monitoring means for monitoring the carry-out request table. The request monitoring means operates in response to detection of a carry-out request to output a transport command to transport a rack corresponding to the carry-out request to a next process only when the number of racks kept in a buffer associated with a second next process of the rack is smaller than a predetermined value.

REFERENCES:
patent: 3845286 (1974-10-01), Aronstein et al.
patent: 4309600 (1982-01-01), Perry et al.
patent: 4729105 (1988-03-01), Thompson et al.
patent: 5229948 (1993-07-01), Wei et al.

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