Material supply method and material supply system

摘要

PROBLEM TO BE SOLVED: To provide a material supply method or the like which can easily prevent contamination of an undersized product by a method different from conventional methods, and does not require setting of a setting value of delivery shortage according to processing length for each product.;SOLUTION: A material supply method delivers material B1 to a process machine side, thereafter pushes back the material B1 to supply the material B1 into a process machine 1 by a constant delivery amount. The material supply method detects whether the material B1 is pushed back, and determines as abnormality of a delivery amount of the material B1 when the material B1 is not pushed back.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2019,JPO&INPIT