B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 11/22 (2006.01) B21D 5/04 (2006.01)
Patent
CA 2397358
6 A sheet metal bending machine is provided with a bending unit moved by hydraulic cylinders with sliding pistons. The cylinders are controlled by a closed loop control system comprising temperature measuring means for measuring the cylinder temperature, position detecting means for detecting the piston position and a control unit for varying the rate of hydraulic fluid fed to the cylinders according to the measured cylinder temperature and the detected piston position.
Riches Mckenzie & Herbert Llp
Salvagnini Italia S.p.a.
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