Invention Application
- Patent Title: BAR PRESS WITH HYDRAULIC DRIVE
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Application No.: US16598590Application Date: 2019-10-10
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Publication No.: US20200038928A1Publication Date: 2020-02-06
- Inventor: Andreas Wershofen-Crombach , Ewald Hagen , Stephan Frehe
- Applicant: SMS Group GmbH
- Priority: DE102014209685.5 20140521
- Main IPC: B21C23/21
- IPC: B21C23/21

Abstract:
A bar and tube extruding press for thrilling metal ingots into profiles, tubes, bars or the like includes a male die and a female die, through which a metal ingot can be pressed by the male die a container, and a driving device, in which the driving device has at least one main cylinder tor applying the main pressing force of the male die to the metal ingots, characterized in that on the one hand the driving device having at least one speed-controlled internal gear pump for providing the hydraulic oil to the at least one main cylinder, with which the at least one main cylinder can be driven, and at least one hydraulic advance and/or return cylinder for moving the male die in relation to the female die or at least one electrical drive for moving the male die in relation to the female die and with which the male die can be moved into a position in which the speed-controlled internal gear pump only then interacts with the at least one main cylinder in such a way that the main pressing force is applied to the male die by the at least one main cylinder.
Information query