ABSTRACT
Operations on plastic molding machines, die-casting machines and large presses invariably involve work both at the front and at the back of the machine. Test runs and adjustments are necessitated by inaccurate centering, dimensioning, etc., in the internal setup procedure. Managers often say that insufficient manpower prevents them from conducting parallel operations. With the Single-Minute Exchange of Die system this problem is eliminated because only a few minutes' assistance will be needed, and even unskilled workers can help, since the operations are simple ones. The stoppers were attached merely by fitting them onto the spindles, thereby greatly simplifying the operation. Measurement devices for numerical settings have been greatly refined, so improvements can often be secured simply by installing a sufficiently accurate measurement tool for the task at hand. Mechanization may then further reduce the time by another minute or so.
