| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a laminated core in which maintenance frequency and the number of replacement parts can be reduced by reducing or eliminating the eccentric load, and to provide a blanking die apparatus.SOLUTION: In a method of manufacturing a laminated core by operating the cutleries 12-15 in processing stations S1-S4 simultaneously, while forwarding a processed material 11 to a blanking die apparatus 10 having the processing stations S1-S4, forming a core piece 16 by performing contour punching after punching the processed material 11, and then laminating the core pieces in the blanking die apparatus 10 or on the outside thereof, a locator hole 17 is punched by means of an auxiliary cutlery 18 in the scrap formation region of the processed material 11, in synchronism with the operation of the cutleries 12-15 in processing stations S1-S4, thus balancing the load of the blanking die apparatus 10 in the feeding direction. |
