THERMO-FORMING PACKAGING MACHINE WITH TRUE-TO-CYCLE POSITIONING OF A SEALING STATION

摘要

The invention relates to a thermo-forming packaging machine and a method which are characterized in that the location of trays in a base film upstream of a sealing station is detected by a measuring system and that the sealing station is immediately subsequently positioned such as to allow a top film to be sealed with highest accuracy matching the tray and thereby to be able to compensate for irregularities and tolerances, for example, in the film feed, in a true-to-cycle manner.

主权项

1. Thermo-forming packaging machine comprising:
a forming station for forming trays into a base film; a device for introducing a reference element into said base film; a sealing station including an adjustment device for adjusting the position of said sealing station along a direction of production and a displacement measuring device; a measuring system at said sealing station or within a feed length upstream of said sealing station for determining the position of said reference element; and a control unit configured to control the position of said sealing station according to the detected location of said reference element relative to said trays using said adjustment device; wherein said thermo-forming packaging machine is adapted to be operated intermittently with the feed length for every work cycle.