| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling method which prevents performance degradation due to lowering of dimensional accuracy of each iron core plate and laminated core by maintaining a space between a profile stamping punch and profile stamping dies which are fitted in a slight dimensional difference, or a space between a squeeze ring and the respective iron core plate and laminated core at a predetermined dimension relationship; and reduces heat expansion due to temperature rise so as not to bring about obstacles to a stamping work by the dies; and to provide a cooling system therefor. SOLUTION: Provided are the cooling method and the cooling system for a manufacturing apparatus of the laminated core, wherein the cooling method and the cooling system include at least one of a first cooling means comprising a first cooling channel C1 for cooling the profile stamping punch 8, and for cooling the respective iron core plate 4 and laminated core 5 from the inside; and a second cooling means comprising a second cooling channel C2 for cooling the squeeze ring 22, and for cooling the respective iron core plate 4 and laminated core 5 from the outside. COPYRIGHT: (C)2008,JPO&INPIT
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