Adjustable die for a press brake
AssigneeRolleri S.P.A.
InventorDomenico MAZZOCCHI
Life of this patent
Estimating the term…
Abstract
Disclosed is a die for a press brake including a base, a first half portion and a second half portion of a mold, each including a plurality of plates parallel to one another and alternated in a longitudinal direction of the die, the die including a translation device to move the half portions away from and toward each other, the device including a plurality of guides obtained on the plates, a shaft slidingly engaged with the guides, a first pinion and a second pinion mounted on the shaft and at least a first rack and at least a second rack respectively on a first plate of the first half portion and on a second plate of the second half portion and meshed respectively with the first and second pinion.
Claims20
Die for a press brake comprising:
- a base (10);
- a first half portion (20) and a second half portion (30) of a mold, resting sliding on said base (10), between which the mold cavity (C) is defined;
- wherein the first half portion (20) comprises a plurality of first plates (22) parallel to one another and the second half portion (30) comprises a plurality of second plates (32) parallel to one another, said first and second plates extending in a transverse direction (Y) of the die, and being alternated in a longitudinal direction (X) of the die, said first plates (22) being positioned at a distance from one another such as to accommodate, between two consecutive first plates (22), at least a part of a second plate (32), said second plates (32) being positioned at a distance from one another such as to accommodate, between two consecutive second plates (32), at least a part of a first plate (22), the die comprising a translation device to move the first half portion (20) and the second half portion (30) away from and toward each other, so as to vary the width of the mold cavity (C), said translation device comprising:
- a plurality of first guides (24) obtained on the first plates (22) and a plurality of second guides (34) obtained on the second plates (32);
- a shaft (41) arranged along the longitudinal direction (X) of the die and engaged with the first guides (24) and with the second guides (34) so as to slide along said first guides and said second guides when the first half portion (20) and the second half portion (30) are moved away from or toward each other;
- at least a first pinion (42) and a second pinion (43) mounted on said shaft (41);
- at least a first rack (25) and at least a second rack (35) respectively on a first plate (22) and on a second plate (32);
- said first and second rack being meshed respectively with said first and second pinion so that following rotation of the shaft (41) in one direction or in the opposite direction, the two half portions (20, 30) are moved away from or toward each other.
Dependencies are inferred from the claim text.