Hydraulic Forming Machine for Workpiece Forming, Hydraulic Control Unit and Method for Controlling a Hydraulic Cylinder of a Hydraulic Forming Machine
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 6, 2025
app pub date -
May 22, 2024
filing date -
May 22, 2024
priority date (Note) -
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Abstract
A hydraulic forming machine, includes a hydraulic cylinder with a piston guided in a cylinder tube and divides the cylinder tube into a first cylinder chamber, and a second cylinder chamber. A hydraulic circuit with a control unit for controlling the operation of the hydraulic cylinder includes a first hydraulic valve coupled to the control unit and is connected to the second cylinder chamber via the second hydraulic connection. The control unit regulates an opening width of the first hydraulic valve such that the first hydraulic valve is open in a first phase and the bear) is accelerated to a target speed in the first phase, while, in a following second phase the opening width of the first hydraulic valve is reduced to an inflow opening width, and the first hydraulic valve is closed during a return stroke running in the opposite direction to the working stroke.
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