Patent ID: 8434541

Claim:
A pressing module for a pressing apparatus for the press-forming of impregnated conductor bars for large electrical machines, the module comprising: a first pressing device including a framework in the form of a vat, the framework having a horizontal base portion and two outer webs extending perpendicularly up from the horizontal base portion, and at least one first closing unit configured and arranged to apply a pressing force to at least one impregnated conductor bar when resting on the base portion; a second pressing device including a yoke spanning the first pressing device, and at least one second closing unit configured and arranged to apply a pressing force to the at least one impregnated conductor bar when resting on the base portion, wherein directions of pressing forces exerted on the at least one conductor bar by the first pressing device and the second pressing device are perpendicular to one another; wherein at least one of the first and second closing units comprises a housing which encloses a cavity with an inner contour and includes a through-opening, and a pressing piston having an outer contour slidingly mounted on the inner contour by the outer contour; wherein the pressing piston has a center axis and a threaded hole at the center axis; and an axially fixed, threaded bolt arranged rotationally movably within the housing and cooperating with the pressing piston threaded hole in such a way that a turning movement of the threaded bolt causes axial movement of the pressing piston, and the pressing piston can be extended out of the housing through said housing through-opening.