Moulding unit for a plant for blow-moulding plastic containers, particularly bottles
AssigneeSacmi Cooperativa Meccanici Imola Societa' Cooperativa
InventorsMaurizio Borgatti, Massimo Morovingi, Fiorenzo Parrinello, Emilio Re, Gabriele Stocchi
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Abstract
A moulding unit for a plant for blow-moulding plastic containers (2) from respective parisons (3) comprises: two half-moulds (17a, 17b), movable relative to each other between a position of opening and a position of closing at least one cavity (19) for blow-moulding a respective container (2); and a locking device (21) for locking the two half-moulds (17a, 17b) in the closed position, the locking device (21) comprising two first fastening elements (22, 28) which are moved to, and normally held in, a locked position by at least one elastic actuating element (30).
Claims11
A moulding unit for a plant for blow-moulding plastic containers (2) from respective parisons (3), the moulding unit being movable along a defined path (P) and comprising:
- two half-moulds (17a, 17b), movable relative to each other between a position of opening and a position of closing at least one cavity (19) for blow-moulding a respective container (2);
- and a locking device (21) for locking the two half-moulds (17a, 17b) in the closed position, the locking device (21) comprising a first fastening element (22) associated with the first half-mould (17a) and a second fastening element (28) mounted on the second half-mould (17b), the first fastening element (22) being movable between a position of locking and a position of unlocking the two half-moulds (17a, 17b),
- wherein the locking device (21) comprises, in combination:
- first elastic actuating means (30) comprising at least one spring (30) interposed between the first half-mould (17a) and the first fastening element (22) in order to move the fastening elements (22, 28) to the locked position and normally hold them in that position;
- means for moving the first fastening element (22) from the locked position to the unlocked position against the action of the spring (30) and comprising a rocker (25) kinematically connected to the first fastening element (22) in order to rotate it about a predetermined axis, and
- wherein the first fastening element (22) has a substantially cylindrical shape, limited by a flat face, the second fastening element (28) comprising a socket (29) designed to receive and hold the first fastening element (22).
A moulding unit for a plant for blow-moulding plastic containers (2) from respective parisons (3), the moulding unit being movable along a defined path (P) and comprising:
- two half-moulds (17a, 17b), movable relative to each other between a position of opening and a position of closing at least one cavity (19) for blow-moulding a respective container (2);
- and a locking device (21) for locking the two half-moulds (17a, 17b) in the closed position, the locking device (21) comprising a first fastening element (22) associated with the first half-mould (17a) and a second fastening element (28) mounted on the second half-mould (17b), the first fastening element (22) being movable between a position of locking and a position of unlocking the two half-moulds (17a, 17b),
- wherein the locking device (21) comprises, in combination:
- first elastic actuating means (30) comprising at least one spring (30) interposed between the first half-mould (17a) and the first fastening element (22) in order to move the fastening elements (22, 28) to the locked position and normally hold them in that position;
- means for moving the first fastening element (22) from the locked position to the unlocked position against the action of the spring (30) and comprising a rocker (25) kinematically connected to the first fastening element (22) in order to rotate it about a predetermined axis, and
- wherein the first fastening element is a cylindrical rod (22) rotatably coupled to the first half-mould (17a).
A moulding unit for a plant for blow-moulding plastic containers (2) from respective parisons (3), the moulding unit being movable along a defined path (P) and comprising:
- two half-moulds (17a, 17b), movable relative to each other between a position of opening and a position of closing at least one cavity (19) for blow-moulding a respective container (2);
- and a locking device (21) for locking the two half-moulds (17a, 17b) in the closed position, the locking device (21) comprising a first fastening element (22) associated with the first half-mould (17a) and a second fastening element (28) mounted on the second half-mould (17b), the first fastening element (22) being movable between a position of locking and a position of unlocking the two half-moulds (17a, 17b),
- wherein the locking device (21) comprises, in combination:
- first elastic actuating means (30) comprising at least one spring (30) interposed between the first half-mould (17a) and the first fastening element (22) in order to move the fastening elements (22, 28) to the locked position and normally hold them in that position;
- means for moving the first fastening element (22) from the locked position to the unlocked position against the action of the spring (30) and comprising a rocker (25) kinematically connected to the first fastening element (22) in order to rotate it about a predetermined axis, and
- wherein the first fastening element (22) extends through one of the two half-moulds (17).
Dependencies are inferred from the claim text.