Folding device and method for erecting boxes starting from T-shaped or double-T-shaped flat blanks

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EP 2 090 512 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	17.08.2011 Bulletin 2011/33

(43)	Date of publication A2:
	19.08.2009 Bulletin 2009/34

(21)	Application number: 09151368.9

(22)	Date of filing: 26.01.2009

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International Patent Classification (IPC):

B65B 43/10^(2006.01)
B31B 5/80^(2006.01)
B31B 1/44^(2006.01)

B65B 43/26^(2006.01)
B65B 47/04^(2006.01)
B31B 3/46^(2006.01)

(84)	Designated Contracting States:
	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 SE SI SK TR
	Designated Extension States:
	AL BA RS

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Priority:

15.02.2008 IT FI20080026

(71)	Applicant: Europrogetti S.r.l.
	53048 Sinalunga SI (IT)

(72)	Inventors:
	Saletti, Lamberto 53049 Torrita di Siena (Siena) (IT) Broccolini, Giovanni 52044 Cortona (Arezzo) (IT)

(74)	Representative: Bardini, Marco Luigi et al
	Società Italiana Brevetti SpA Corso dei Tintori, 25 50122 Firenze 50122 Firenze (IT)

(54)	Folding device and method for erecting boxes starting from T-shaped or double-T-shaped flat blanks

(57) An apparatus for forming boxes starting from flat blanks (F) comprises an erecting station wherein the blanks (F), fed along a horizontal feeding direction (Y), are subjected to the action of a mandrel (101), movable vertically and adapted to push the blanks (F) against fixed folding means (104), arranged in proximity to the lower end of the run of the mandrel. The erecting station comprises a folding device with movable folding means (9) rotating on respective vertical planes, parallel to said feeding direction (Y), adapted to interfere with respective lateral flaps (F1, F2, F3, F4) of a T-shaped or double-T-shaped blank (F) to cause folding along longitudinal folding lines thereof, i.e. parallel to said feeding direction (Y), the device further comprising, or being associated to, further fixed folding means (103) adapted to engage with the blanks to perform, in an initial step of downward movement of the mandrel (101), foldings along transverse lines, consequently allowing the rotating folding means (9) to engage with the lateral flaps (F1, F2, F3, F4).

Search report