Abstract: A hot forming device for producing glass containers from a glass tube is provided. The device includes a machine frame, a turntable, a plurality of holding chucks, and a direct drive motor. The turntable is mounted on the machine frame. The holding chucks are arranged on the turntable. The turntable is connected to the machine frame directly by the direct drive without a transmission. The direct drive has a stator arranged in an upper region of the machine frame and a rotor on the turntable.

Abstract: A method for controlling a rotary drive of a hot forming machine having a plurality of processing stations arranged in a circular manner and a rotary table arranged thereabove, in which glass tubes to be processed are held and moved from one processing station to the next by a stepwise rotary movement, is provided. The rotary table is driven by a step gear by which a movement of a drive shaft is translated into a cyclic step movement, a step cycle of which comprises a movement phase and a subsequent standstill phase. A first value for the angular velocity of the drive shaft is assumed at a first time in the movement phase of the step cycle and a second value different from the first value is assumed at a second time in the standstill phase of the same step cycle.

Abstract: A hot forming device for producing glass containers from a glass tube is provided. The device includes a machine frame, a turntable, a plurality of holding chucks, and a direct drive motor. The turntable is mounted on the machine frame. The holding chucks are arranged on the turntable. The turntable is connected to the machine frame directly by the direct drive without a transmission. The direct drive has a stator arranged in an upper region of the machine frame and a rotor on the turntable.

Abstract: A method for controlling a rotary drive of a hot forming machine having a plurality of processing stations arranged in a circular manner and a rotary table arranged thereabove, in which glass tubes to be processed are held and moved from one processing station to the next by a stepwise rotary movement, is provided. The rotary table is driven by a step gear by which a movement of a drive shaft is translated into a cyclic step movement, a step cycle of which comprises a movement phase and a subsequent standstill phase. A first value for the angular velocity of the drive shaft is assumed at a first time in the movement phase of the step cycle and a second value different from the first value is assumed at a second time in the standstill phase of the same step cycle.