LOCALLY SHAPING-BENDING MILL FOR MAKING ARTICLES WITH RELIEF SURFACE OF SHEET METAL Russian patent published in 2003 - IPC

FIELD: plastic working of metallic sheet materials, possibly manufacture of equipment for locally shaping (rolling) from sheet material articles such as coatings of roofs, building panels and so on. SUBSTANCE: mill for making products with relief surface includes housing with drive unit for horizontally moving table supporting lower die with preset relief surface; traverse bar with rod carrying working tool in the form of deforming shaft with elastic envelope. Rod is loaded by spring whose lower portion rests upon rod base and whose upper part is secured to base of cover of traverse bar. Working stroke and spring effort, geometrical parameters of deforming shaft and elastic envelope are determined according to expressions given in description of invention. EFFECT: enlarged assortment of products having the same size and metal quantity. 1 dwg