Grooved rectifier roller former - has high pressure contact with drive received by large circumferential rib

摘要

The grinding roller (10) with a circumferentially grooved formative surface (11) is for use in the formation of a rectification roller (20). During the formation process, the rectifying roller (20) is rotated whilst the grinding roller (10) makes high pressure contact. The grinding roller has a circumferential surface (18) which receives the rotational drive from the rectifying roller. The formative pressure grinding of the rectification roller (20) is a continuous operation which takes place as the rectifying roller produces a cutting roller (30). The latter may be used to split light gauge metal sheet. The proud surfaces may be 50 to 75 times wider than each of the rectangular section formative ribs (12).