| 摘要 |
PROBLEM TO BE SOLVED: To provide a metallic plate boring disc-shaped roll capable of boring a large number of continuously equal holes with high accuracy while keeping thickness uniform.SOLUTION: A metallic plate boring device includes: a metallic plate boring disc-shaped roll 10 equipped with a plurality of boring blade portions 20; and a pair of upper side spacer rolls 30. On both sides of the disc-shaped roll, an upper toll 100 coaxially coupling a pair of the upper spacer rolls, a pair of disc-shaped guide rolls 40, and a lower side spacer roll 50 are provided. Between the pair of the guide rolls, a lower roll 200 coaxially coupling the lower side spacer roll, and disposed oppositely to the upper roll; carrying means for carrying a metallic plate 300 into between the upper roll and the lower roll while adding tensile force to the metallic plate 300; and a boring remaining part removing member 80 provided near the lower side spacer roll, and removing a boring remaining portion generated when the metallic plate boring disc-shaped roll bores the metallic plate, from the lower side spacer roll, are provided. |
