Drive system for automatic welding machine

A drive system for driving an automatic welding machine designed to join the edges of sealing sheets, the automatic welding machine comprising at least two pressing/advancing rollers located vertically opposite one another, an electric drive motor for at least one of the pressing/advancing rollers and a transmission gear mechanism connected downstream of the drive motor, an upper pressing/advancing roller being disposed rotatably about a driven upper roller rotational axis on a tensioning arm of the automatic welding machine and a lower pressing/advancing roller being disposed rotatably about a lower roller rotational axis on a frame of the automatic welding machine, the tensioning arm being mounted pivotably about a tensioning arm axis on the frame of the automatic welding machine, and the frame being supported by at least two drive rollers, the drive motor and the transmission gear mechanism being rigidly attached to the frame, the transmission gear mechanism being arranged outside and laterally offset to the tensioning arm, the drive motor comprising a motor armature rotating about a protruding rotational shaft, and the transmission gear mechanism comprising a rotatable protruding input shaft and a rotatable protruding output shaft, and the tensioning arm axis, the roller rotational axis, the rotational shaft, the input shaft and the output shaft being disposed parallel to one another, wherein the rotational shaft of the drive motor is coupled to a drive pulley, and the input shaft of the transmission gear mechanism is coupled to a transmission pulley, the drive pulley and the transmission pulley being drivingly coupled together such that the drive pulley drives the transmission pulley, and the transmission gear mechanism is downstream of the transmission pulley, wherein the rotational shaft of the motor armature and the output shaft of the transmission gear mechanism extend next to, and laterally offset from, one another, wherein at least the output shaft is disposed at the level of the tensioning arm axis of the tensioning arm and the output shaft is disposed coaxially with respect to the tensioning arm axis, wherein the output shaft of the transmission gear mechanism includes a shaft extension that is an input shaft for driving a drive intermediate gear mechanism downstream of the transmission gear mechanism.

A drive system for driving an automatic welding machine designed to join the edges of sealing sheets, the automatic welding machine comprising at least two pressing/advancing rollers located vertically opposite one another, an electric drive motor for at least one of the pressing/advancing rollers and a transmission gear mechanism connected downstream of the drive motor, an upper pressing/advancing roller being disposed rotatably about a driven upper roller rotational axis on a tensioning arm of the automatic welding machine and a lower pressing/advancing roller being disposed rotatably about a lower roller rotational axis on a frame of the automatic welding machine, the tensioning arm being mounted pivotably about a tensioning arm axis on the frame of the automatic welding machine, and the frame being supported by at least two drive rollers, the drive motor and the transmission gear mechanism being rigidly attached to the frame, the transmission gear mechanism being arranged outside and laterally offset to the tensioning arm, the drive motor comprising a motor armature rotating about a protruding rotational shaft, and the transmission gear mechanism comprising a rotatable protruding input shaft and a rotatable protruding output shaft, and the tensioning arm axis, the roller rotational axis, the rotational shaft, the input shaft and the output shaft being disposed parallel to one another, wherein the rotational shaft of the drive motor is coupled to a drive pulley, and the input shaft of the transmission gear mechanism is coupled to a transmission pulley, the drive pulley and the transmission pulley being drivingly coupled together such that the drive pulley drives the transmission pulley, and the transmission gear mechanism is downstream of the transmission pulley, wherein the rotational shaft of the motor armature and the output shaft of the transmission gear mechanism extend next to, and laterally offset from, one another, wherein at least the output shaft is disposed at the level of the tensioning arm axis of the tensioning arm and the output shaft is disposed coaxially with respect to the tensioning arm axis, wherein the output shaft of the transmission gear mechanism includes a shaft extension that is an input shaft for driving a drive intermediate gear mechanism, the drive intermediate gear mechanism being drivingly coupled between the transmission gear mechanism and the lower pressing/advancing roller, such that rotation of the output shaft drives the lower pressing/advancing roller via the drive intermediate gear mechanism.