Perforation device for capsules and machine for preparing beverages incorporating said device

摘要

In a machine for preparing beverages, in particular espresso coffee, using capsules (100) containing powder material and delimited at the top and bottom by perforatable sealing foils, said machine comprising a zone (12) for loading capsules (100) one at a time and an infusion zone (50), a device for perforating the bottom foil (104) of said capsule inside said loading zone, comprising a star-shaped element (48) having, projecting therefrom, cutting tips (44) able to project into the path of said capsule (100) when it is introduced into said loading zone (12) and following interaction of the front edge of the capsule with a first tip, the immediately following tip engages with the bottom foil (104) of the said capsule (100) so as to perforate it. The displacement of the capsule (100) into said loading zone (12) is caused by pushing means which preferably consist of a pushing element (34) projecting from the capsule loading flap (30).