Document Type and Number:
Japanese Patent JPS5743336
Kind Code:
B2
Abstract:
A corrugation-forming machine includes two rotatable die rolls formed with intermeshing teeth between which material to be corrugated is passed. The teeth have sharp corners to produce corresponding sharp corners on the corrugated material. During operation the die rolls are oscillated so that their relative angular velocity varies to accommodate the different velocities that would otherwise arise between the tips and the roots of the teeth.
Application Number:
JP5322973A
Publication Date:
September 14, 1982
Filing Date:
May 15, 1973
Export Citation:
International Classes:
B21D31/00; B21D13/04; B21D33/00; B29C33/00; B29C43/00; (IPC1-7): B21D33/00; B21D31/00