(19)
(11) EP 3 009 384 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.05.2016 Bulletin 2016/20

(43) Date of publication A2:
20.04.2016 Bulletin 2016/16

(21) Application number: 15184202.8

(22) Date of filing: 08.09.2015
(51) International Patent Classification (IPC): 
B65H 20/24(2006.01)
 B65H 23/04(2006.01)
(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
Designated Extension States:
BA ME
Designated Validation States:
MA

(30) Priority: 11.09.2014 IT MI20141574

(71) Applicant: Altopack S.P.A.
55011 Altopascio (LU) (IT)

(72) Inventor:
  • VEZZANI, Giuseppe
    6902 PARADISO - LUGANO (CH)

(74) Representative: Mittler, Enrico et al
Mittler & C. S.r.l. Viale Lombardia, 20
20131 Milano
20131 Milano (IT)

   


(54) TENSIONING DEVICE FOR A PLASTIC FILM IN A PASTA PACKAGING MACHINE


(57) A tensioning device (1) for a film (2) intended for the formation of bags in a packaging machine (100) is described. The device (1) is placed between a reel (5) of said film (2), wound on a motor-driven axis (6), and a film drive (3), adapted to pull the film (2), while unrolling it from said reel (5), and lead it towards a bag formation unit. The device (1) comprises a take-up (7) rotating around a rotation axis (9) which is parallel to said motor-driven axis (6) of the reel (5) and adapted to wrap therein a portion of the film (2) unrolled from the film reel (5), means (8) for detecting the working position of the take-up (7), and control means configured to start or stop the motor-driven axis (6) of the reel (5) as a function of the detected working position of the take-up (7). (Fig. 1)







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Search report