Abstract: A quality control system in a material processing mill. The mill may include several different processing machines for performing several different processing steps to produce several different intermediate products. Each processing machine is provided with a sub-processor for monitoring production information associated with the processing machine and quality information associated with the intermediate product produced by the processing machine. The quality and production information from the various sub-processors are directed to a main processor, which records a history of the processing of the various intermediate products.

Abstract: In a spinning mill in which a bobbin from a spinning frame is mounted on a bobbin tray and sent to a winder, a package doffed from the winder is loaded on a hanger and then the package is mounted on a package tray, recording media is provided on the bobbin tray, on the hanger and the package tray, respectively. Frame numbers and spindle numbers which are production origin information of bobbins are written on the recording medium so that the production origin information can be controlled and the records can be grasped.

Abstract: A sliver can conveying system comprising carriages having vertically movably suspended cages, and adapted for traveling overhead in a spinning factory along a path provided between stations of the factory, each of the carriages being capable of holding cans in the cages, and movable between the positions where they are loaded and unloaded with full cans, and the positions where they are loaded and unloaded with empty cans, thereby enabling the exchange of the full and empty cans.

Abstract: A sliver can conveying system comprising carriages having vertically movably suspended cages, and adapted for traveling overhead in a spinning factory along a path provided between stations of the factory, each of the carriages being capable of holding cans in the cages, and movable between the positions where they are loaded and unloaded with full cans, and the positions where they are loaded and unloaded with empty cans, thereby enabling the exchange of the full and empty cans.