A packaging machine for producing packages (2) from a sheet of packaging material (3), said packaging material (3) comprising a plurality of marks (20) associated with corresponding portions (21) of said packaging material (3), said packaging machine comprising a working unit (30) having a track arrangement (31) and a plurality of transporting elements (32), each transporting element (32) supporting a tool (40) arranged for carrying out a working operation on said packaging material (3), said transporting elements (32) being movable on said track arrangement (31) (independently from each other, each of said transporting elements (32) comprising a sensor device (33) arranged for detecting a corresponding mark (20) and generating a signal indicating the position of said mark (20) with respect to said transporting element (32), said packaging machine further comprising a control unit arranged to control the position of said transporting element (32) along said track arrangement (31) on the basis of said signal; a method for producing packages (2) from a sheet of packaging material (3) is also disclosed.

The invention relates to a method for the production of form parts from multi-component reactive plastic material, especially from polyurethane, wherein a plurality of moulds are moved by means of mould carriages (1) at least temporarily along a closed, preferably oval, production line (2). To allow a simple and quick import and export of mould carriages in the respectively out of the production line the invention proposes that the mould carriages (1) are provided with rolls (3) and are moved on a stationary ground (4) by the same and that a plurality of supply carriages (6) are arranged along the closed production line (2) at a conveying element (5), which supply carriages (6) are moved by means of the conveying elements (5), wherein a mould carriage (1) is approached to a not occupied supply carriage (6) and is coupled with the same to introduce the mould carriage (1) into the production line (2), wherein for the movement along the production line (2) the mould carriage (1) is guided and moved by the supply carriage (6) in a coupled state between the mould carriage (1) and the supply carriage (6) and wherein the mould carriage (1) is decoupled from the supply carriage (6) and is moved away from the production line (2) for taking the mould carriage (1) out of the production line (2), wherein here the mould carriage (1) is moved with its roils (3) on the stationary ground (4). Furthermore, the invention relates to a respective device.