Abstract: A kneading machine includes a plurality of kneading tools (13) cooperating with a counter-member (14) which is rotatably supported around an axis spaced from the axis of rotation (8) of the bowl (4).

Abstract: In order to enable a packaging machine for producing packages of the flow-pack type to be adapted automatically to different sizes of package and different operating conditions, instead of the use of separate electronically-synchronized drive motors for the various movable elements, at least some of the movable elements, whose precise synchronization is essential for the correct functioning of the machine, are controlled by a single motor through a mechanism which is adapted selectively to the various shapes and different operating conditions by means of electronically-controlled positioning members.