ES209092U - Press brake with escape valve for the same. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Press brake with exhaust valve for the same, characterized in that, being coupled to a crank driven press that has a crankshaft, it is adapted to be applied and disengaged alternatively in response to fluid pressure, integrating in the fluid control system of the press, which further has a fluid actuation cylinder connected to a fluid pressure source when the brake is disengaged, said control including: a cycle start valve means capable of being operated in response to a crankshaft rotation for connecting said fluid pressure source with said cylinder capable of being driven by fluid in a position and, alternatively, capable of being operated to cause the cylinder to be evacuated in a second position; an exhaust control valve means between said cylinder and said cycle initiating valve means responsive to the escape or evacuation position of said latter valve means to control the release of fluid that is transferred from the fluid-actionable cylinder, said exhaust control valve means having a separate exhaust means deriving to the cycle initiating valve in said second position; and a compensation tank connected to said separate exhaust means in the second position of said cycle initiating valve means; a discharge conduit from the surge tank, and a flow restriction in the discharge line to regulate the fluid escape velocity from said fluid cylinder, quickly at the beginning to effect the brake application initiation and then more slowly due to said narrowing providing globally a quick response but a gentle braking action. (Machine-translation by Google Translate, not legally binding)