(19)
(11) EP 4 397 478 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.10.2024 Bulletin 2024/40

(43) Date of publication A2:
10.07.2024 Bulletin 2024/28

(21) Application number: 24174784.9

(22) Date of filing: 16.06.2022
(51) International Patent Classification (IPC): 
B31F 1/20(2006.01)
A47G 21/18(2006.01)
B31D 5/00(2017.01)
(52) Cooperative Patent Classification (CPC):
B31F 1/205; B31D 5/0095; A47G 21/186
(84) Designated Contracting States:
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

(30) Priority: 17.06.2021 IT 202100015836

(62) Application number of the earlier application in accordance with Art. 76 EPC:
22735613.6 / 4355568

(71) Applicant: G.D SOCIETA' PER AZIONI
40133 Bologna (IT)

(72) Inventors:
  • FAZZIOLI, Fabrizio
    40133 BOLOGNA (IT)
  • ALBERTI, Maurizio
    40133 BOLOGNA (IT)
  • FORTINI, Massimo
    40133 BOLOGNA (IT)
  • GAMBERINI, Giuliano
    40133 BOLOGNA (IT)

(74) Representative: Studio Torta S.p.A. 
Via Viotti, 9
10121 Torino
10121 Torino (IT)

   


(54) STRAW CORRUGATING UNIT AND METHOD


(57) A corrugating unit (6) and method for a straw (1). The following are provided: at least one seat (9), which is designed to house the straw (1); a conveyor (8), which is configured to move the seat (9) carrying the straw (1) along a processing path (P); a corrugating station (S3), which is arranged along the processing path (P) and has a plurality of blades (12), which are all arranged parallel to the processing path (P), and are mounted so as to remain, in use, still relative to the conveyor (8) so that the seat (9), while moving along the processing path (P), causes the straw (1) to come into contact with the blades (12), thus determining a deformation of the straw (1) in the area of each blade (12); and a support arm (13), which supports all the blades (12) and is mounted in a movable manner on the frame (7), so as to move between a work position, in which the blades (12) are in the area of the processing path (P), and a rest position, in which the blades (12) are far from the processing path (P).







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Search report