APPARATUS FOR MAKING PRODUCTS WITH CHEVRON CORRUGATIONS Russian patent published in 1997 - IPC

FIELD: plastic metal working, namely, manufacture of parts with chevron corrugations. SUBSTANCE: each shaping unit is in the form of stepped axles mounted in base and having steps turned one to another, two outer and inner disc chucks mounted on respective steps with possibility of rotation, carriers with identical steps joining said disc chuck along their periphery and rigidly connected with corresponding bending members whose working edges are arranged at the same level as axles of steps of carriers joined with inner disc chucks. Each shaping unit has at least three bending members. Unit for shaping lengthwise corrugations is mounted in plane defined by working edges of three bending members of both shaping units. EFFECT: simplified low-cost design, enhanced quality of products due to reduced rejects. 2 dwg