| 主权项 |
1. A press for producing a pellet from powdered material, comprising
a press frame (10) and a press unit arranged in the press frame (10) with at least one upper press punch and/or at least one lower press punch, as well as at least one receptacle for the powdered material to be pressed by the upper and/or lower press punch, at least two upper drive units, each with one upper electric drive motor (30, 31) for moving the upper press punch in a vertical direction, wherein the upper drive units each comprise one upper spindle drive driven by the respective electric drive motors (30, 31) and having an upper spindle (34, 35) and an upper spindle nut (36, 37), and/or at least two lower drive units, each with a lower electric drive motor (42, 43) for moving the lower press punch and/or the receptacle in a vertical direction, wherein the lower drive units each comprise a lower spindle drive driven by the respective electric drive motor (42, 43) and having a lower spindle (44, 45) and a lower spindle nut (50, 51), wherein the upper drive units act laterally offset on the at least one upper press punch by means of an upper power transmission bridge (38) extending in a horizontal direction, and/or wherein the lower drive units act laterally offset on the at least one lower press punch and/or the receptacle by means of a lower power transmission bridge (52) extending in a horizontal direction,characterized in that
the upper spindle nuts (36, 37), or the upper fastening elements each connected to the upper spindle nuts (36, 37), are each connected to the upper power transmission bridge (38) by at least one upper compensation element (56, 58), wherein the compensation elements (56, 58) are each rotatably mounted on the upper spindle nuts (36, 37), or the upper fastening elements on the one hand, and on the upper power transmission bridge (38) on the other hand, and/or that the lower spindle nuts (50, 51), or lower fastening elements connected to the lower spindle nuts (50, 51), are each connected to the lower power transmission bridge (52) by means of at least one lower compensation element (60, 62), wherein the compensation elements (60, 62) are each rotatably mounted on the lower spindle nuts (50, 51), or the lower fastening elements on the one hand and the lower power transmission bridge (52) on the other hand. |
