EP 2522441 B1 20161026 - BENDING MACHINE FOR MAKING U-SHAPED BENDS IN PIPES
Title (en)
BENDING MACHINE FOR MAKING U-SHAPED BENDS IN PIPES
Title (de)
BIEGEVORRICHTUNG ZUM U-FORMIGEN BIEGEN VON ROHREN
Title (fr)
MACHINE POUR CINTRER LES TUBES EN FORME DE U
Publication
Application
Priority
IT VR20110102 A 20110513
Abstract (en)
[origin: EP2522441A1] A bending machine (1) comprising feeding means (5) of a plurality of substantially rectilinear pipes, a cutting group (12) of the pipes coming from said feeding means (5), at least one bending group (6) comprising at least one bending arm (7) suitable for bending said plurality of pipes, coming from said cutting group (12), according to a certain bending angle, thus making a plurality of tubular hairpins (8); extraction means (9,13,13a) of the hairpins (8) in a collection area (10), said bending group (6) comprising a rotary central support (23) of said bending arm (7) and a rotary actuation group (26), coupled with said rotary central support (23), comprising at least one electric motor (27) and a respective reducer (28), said rotary actuation group (26) comprising a servo-actuation of said brushless electric motor (27) operating in a closed loop and a programmable unit for controlling the operation to which said servo-actuation is operatively connected. The servo-actuation comprises control means (100) of the bending cycle suitable for optimising the acceleration ramp, the translation speed and the deceleration ramp of said bending arm (7).
IPC 8 full level
B21D 7/024 (2006.01); B21D 11/07 (2006.01)
CPC (source: EP)
B21D 7/024 (2013.01); B21D 11/07 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2522441 A1 20121114; EP 2522441 B1 20161026; ES 2612139 T3 20170512; HU E032550 T2 20170928; IT VR20110102 A1 20121114; PL 2522441 T3 20170531
DOCDB simple family (application)
EP 12167930 A 20120514; ES 12167930 T 20120514; HU E12167930 A 20120514; IT VR20110102 A 20110513; PL 12167930 T 20120514