发明申请
US20050022644A1 In-line automated dual or selective adjustable multi-hole punch 审中-公开
在线自动双重或选择性可调多孔冲头

In-line automated dual or selective adjustable multi-hole punch
摘要:
A device and method for creating multiple punch holes during a finishing process of paper sheets and other sheet materials. The improved sheet punch includes two rotatable punches set at different angles such that when one intersects the sheet path, the other clears the sheet path. At least one rotatable punch has an adjustable position. The speed of rotation is controlled such that the non-selected punch intersects the sheet path in a space between pitches.
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