Flying punching machine for extruded section bars

(19)

(11)

EP 1 052 037 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	17.07.2002 Bulletin 2002/29

(43)	Date of publication A2:
	15.11.2000 Bulletin 2000/46

(21)	Application number: 00109867.2

(22)	Date of filing: 10.05.2000

(51)	International Patent Classification (IPC)⁷: B21D 28/24, B21D 43/02

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

11.05.1999 IT BO990248

(71)	Applicant: Tecno System S.r.l.
	44015 Portomaggiore (Ferrara) (IT)

(72)	Inventor:
	Mantovani, Daniele Benvignante di Argenta (Ferrara) (IT)

(74)	Representative: Negrini, Elena
	Agazzani & Associati S.r.l. Via dell'Angelo Custode 11/6 40141 Bologna 40141 Bologna (IT)

(54)	Flying punching machine for extruded section bars

(57) A stepless punching machine for extruded section bars, preferably for roller shutters comprises essentially: moving means (10) of punching means (20) for the section bars including at least a vertical moving punch (21) fit for punching slots in at least one of said section bar; shifting means (30) of the punching means (20), underlying this latter, and fit to realize a stop for said at least one section bar in correspondence of a punching condition of said section bar in which said punching means (20) punch each said section bar keeping a defined pitch; indexer means (40) to which are connected kinematically in input said moving means (10) for driving the motion and in output are connected driving means (50) fit to drive said shifting means (30) at the same moving direction and at a relative speed almost equal to zero as that of the forward moving section bars in correspondence of said punching condition and with contrary direction in correspondence of a not punching condition of said machine (1) in which said section bars move forward through this latter without being punched.

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