Drive for sealing jaws

Vertical flow-wrapper comprising:

• a frame,
• a web feed, which feeds a web to a form-shoulder and a form-fill tube, which form the web into a web tube,
• a longitudinal sealing-means to seal longitudinal edges of the web tube together, and
• a cross sealing means to provide a cross-seal to the web tube to produce individual packages,
• wherein the cross sealing means comprises seal jaws, a closing motor, and a jaw closing mechanism provided between the closing motor and the seal jaws, wherein the seal jaws and the jaw closing mechanism reciprocate between an upper and a lower vertical position driven by a reciprocation motor,
• wherein the closing motor is provided at the frame and a torque transfer means is provided between the closing motor and the jaw closing mechanism,
• wherein the closing motor and the reciprocation motor are operated independently from each other,
• wherein the closing motor is connected to the frame by a slide bearing or the closing motor is pivotably connected to the frame,
• wherein the closing motor rotates relative to the frame during the reciprocation of the seal jaws between the upper and the lower vertical position, around a horizontal axis,
• wherein the torque transfer means comprises at least two rotational bodies or wheels, which are rotationally connected.