Apparatus and method for the electrohydraulic control of parallelism in a bending machine for working metal products
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United States of America Patent
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Oct 18, 2016
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Jul 25, 2012
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Jul 27, 2011
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Abstract
An apparatus for the electrohydraulic control of the parallelism of a roller in a bending machine for working metal pieces, has a first and second pumps for supplying with an operating fluid a first and second actuators, position transducers and a first and second proportional valves to adjust the flow of the operating fluid into the first and second actuators according to signals of the position transducers.
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