Patent ID: 7431854

Claim:
A method for directly forming a cutter mold with double etching comprising the following steps: (1) selecting a metal plate suitable for being made as a cutter mold, the metal plate being adhered with a light-resisting agent membrane and the light resisting agent being image-transferred, exposed and developed to leave an optical mask membrane; (2) etching the optical mask membrane with approximately atomized etching liquid first after the etching liquid is regulated to provide a suitable spray pressure and inclination; (3) stripping the optical mask membrane rapidly by spraying water and discarded substances being separated from wastewater with a screen cylinder and both the discarded substances and the wastewater being collected with a recycle device respectively; (4) spraying the upper two lateral sides of the cutter mold with atomized etching liquid to remove sharp lines thereof; and (5) actuating a movable brush cylinder with magnetic force to move on the etching surface of the formed cutter in a rush with high speed so as to perform rubbing, grinding and finishing; whereby once the cutter mold is formed with the double etching, the blade can provide small circular arctice blade point.