Title:
METHOD AND APPARATUS FOR ROUNDING THIN PLATE
Document Type and Number:
Japanese Patent JPS61286028
Kind Code:
A
Abstract:
Plane, rectangular sheets (10) are bent around a driven bending roll (32) by a number of back-up rolls (34) and pressure rolls (52, 56). The almost completely rounded sheet (10) is bent resiliently away from the bending roll (32) by a deflecting member (62) to prevent its front edge (10a) from re-entering between the bending and back-up rolls before its rear edge has travelled through between them. Then the deflecting member (62) is retracted and the front region (10a) of the sheet (10) springs back towards the bending roll (32) to be gripped again by the rolls. When the front edge (10a) of the sheet (10) has reached the gap between the last two pressure rolls (56), all the pressure rolls are lifted. The sheet (10) is then conveyed axially from the rounding station (31) but continues to be rotated by the bending roll (32) until its front edge (10a) is arrested by catching levers. The rounded sheet (10) is now stripped axially off the bending roll (32).
Inventors:
BUORUFUGANGU BUAIRU
YOOZEFU ROTSUHAA
YOOZEFU ROTSUHAA
Application Number:
JP13398286A
Publication Date:
December 16, 1986
Filing Date:
June 11, 1986
Export Citation:
Assignee:
ELPATRONIC AG
International Classes:
A63G13/08; B21D5/14; B21D51/26; (IPC1-7): B21D5/14
Attorney, Agent or Firm:
Toshio Yano
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