EP 3808552 B1 20231115 - METHOD AND APPARATUS FOR MANUFACTURING MICROPERFORATED ALUMINUM TRAYS FOR FOODSTUFF
Title (en)
METHOD AND APPARATUS FOR MANUFACTURING MICROPERFORATED ALUMINUM TRAYS FOR FOODSTUFF
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON MIKROPERFORIERTEN ALUMINIUMSCHALEN FÜR LEBENSMITTEL
Title (fr)
PROCÉDÉ ET APPAREIL DE FABRICATION DE PLATEAUX D'ALUMINIUM MICROPERFORÉS POUR PRODUITS ALIMENTAIRES
Publication
Application
Priority
EP 19425073 A 20191017
Abstract (en)
[origin: EP3808552A1] In a perforating station (40), a strip (10) of aluminum foil unrolling from a roll (12) is punched to form a plurality of microperforations. In a molding station (14), a portion (P) of aluminum foil is separated from the strip (10) output from the perforating station (40) and molded into the shape of a tray (20). In the perforating station (40), the strip (10) is intermittently punched, in synch with the operation of the molding station (14), at a desired region (R) between a punching plate (42) provided with a plurality of needles (44) and a counter plate (46) suitable to be passed through by the needles (44). The pitch between two consecutive perforated regions (R), as determined by the intermittent punching action, corresponds to the length of the portion (P) of aluminum foil or to a multiple thereof.
IPC 8 full level
B31B 50/14 (2017.01); B21D 28/26 (2006.01); B31B 50/16 (2017.01); B31B 50/59 (2017.01); B21D 31/02 (2006.01); B31B 100/00 (2017.01); B31B 110/10 (2017.01); B31B 110/20 (2017.01)
CPC (source: EP)
B31B 50/142 (2017.08); B31B 50/16 (2017.08); B31B 50/592 (2018.05); B21D 31/02 (2013.01); B31B 50/44 (2017.08); B31B 2100/0024 (2017.08); B31B 2110/10 (2017.08); B31B 2110/20 (2017.08)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3808552 A1 20210421; EP 3808552 B1 20231115; EP 3808552 C0 20231115
DOCDB simple family (application)
EP 19425073 A 20191017