Title:
【発明の名称】曲げ成形機械とその曲げ方法
Document Type and Number:
Japanese Patent JP3249559
Kind Code:
B2
Abstract:
Bending-shaping machine for sections (29) as in IT-A-15904 A/89 (EP-A-379043), in which a drawing unit (10) located downstream of a bending unit (35) and on the same axis as the section (29) takes up not only a retracted position (10B) and a normal working position (10L) but also a high position (10A) to lift the section (129) above an abutment roll (12). Method for the automatic bending of the trailing end of sections (29) in a bending-shaping machine as above described, in which so as to invert the orientation of a bend (26) when making bends (26) in the trailing end (C) of a section (129), the drawing unit (10) moves from its working position (10L) to its high position (10A) and returns to its working position (10L) while a bending disk (11) si displaced sideways (from position 11S to position 11D or viceversa) by passing under the section (129) and thus re-positioning the abutment roll (12) in relation to the section (129).
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Inventors:
Giorgio del Fabro
Marcello del Fabro
Marcello del Fabro
Application Number:
JP33354991A
Publication Date:
January 21, 2002
Filing Date:
December 17, 1991
Export Citation:
Assignee:
Emme et Pi Mackine Elet Ronicke Pietatrich Sochieta Per Azioni
International Classes:
B21D11/12; B21F1/00; B21D7/024; (IPC1-7): B21D7/024; B21F1/00
Domestic Patent References:
| JP2229632A | ||||
| JP55117524A |
Attorney, Agent or Firm:
Aoki Akira (4 outside)
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