Abstract:
An apparatus (1) for heating parisons (2) of thermoplastic material comprises: a conveyor (3) defining a path along which the parisons (2) are fed; a plurality of supporting elements (6) having a structure (7) fixed to the conveyor (3) and a rod (8) rotatably associated with the structure (7) to rotate about a longitudinal axis and mobile axially relative to the structure (7) between a lowered position, where a lower end of the rod (8) is operatively inserted in a parison (2) in such a way as to retain it and drive it rotationally about its longitudinal axis, and a raised position, where the parison (2) is disengaged from the rod (8); a linking element (11) kinematically coupled to rotary means (12) rotatably associated with the structures (7) and coupled to the rods (8) in such a way that the rods (8) are made to rotate about their longitudinal axes while they move as one with the conveyor (3); heating means (10) designed to heat the parisons (2) as the latter move along at least a part of their feed path. The supporting element (6) comprises a friction clutch (13) connected to the rod (8) and to the rotary member (12) to define a first operating position, where the rod (8) is engaged with the rotary member (12), and a second operating position, where the rod (8) is disengaged from the rotary member (12).
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).
Abstract:
A plant for blow-moulding plastic containers (2) from respective parisons (3) is equipped with a plurality of interchangeable moulding units (15), each having a predetermined number of moulding cavities (19) for blow-moulding respective containers (2); with a wheel (39) for feeding the parisons (3) to the respective moulding cavities (19); with a wheel (76) for picking up the containers (2) from the respective moulding cavities (19); and with two lines (41, 79) for feeding the parisons (3) to the first transfer wheel (39); and the containers (2) from the pick-up wheel (76) to a filling machine (10), respectively; the feed speeds of the two feed lines (41, 79) vary according to the number of moulding cavities (19) in the moulding units (15) mounted on the plant at a given time.
Abstract:
A system to optimize the feeding of bottles in filling plants characteritzed by the fact that it comprises a synchronizing star (K) with peripheral alveoli having the same pitch as a synchronized filling machine (R) to allow the simultaneous engagement of two converging and synchronized blowing machines (S1; S2) equipped with double-pitched (U1; U2) exit wheels (2P).
Abstract:
Improvements to isobaric aseptic filling machines characterized by the fact that the processing fluids are not contained in a rotating tank but in a fixed tank (1). Such improvements also include a number of coil tubes (8) generating high flow resistance during the filling phase of the process fluid.
Abstract:
A labeling machine, particularly of the reel-fed type, which comprises a framework (2) which supports an application means (10) provided with at least one rotating member (11) adapted to transfer the individual labels on corresponding containers moved by a conveyance means (50); the application assembly is fed by a driving means (20) which unwinds the ribbon of the labels from a reel which is supported by a rotatable support (31) mounted on at least one reel supporting assembly (30). The labeling machine comprises an articulation means (100) in order to move reversibly the reel supporting assembly from a working position, in which the rotation axis (3000) of the rotatable support is substantially parallel to the rotation axis (1000) of the rotating member, to a loading position, in which the rotation axis of the rotatable support is transverse to the rotation axis of the rotating member.
Abstract:
An apparatus (1) for heating parisons (2) of thermoplastic material comprises: a conveyor (3) defining a path along which the parisons (2) are fed; a plurality of supporting elements (6) having a structure (7) fixed to the conveyor (3) and a rod (8) rotatably associated with the structure (7) to rotate about a longitudinal axis and having a lower end that can be operatively inserted in a parison (2) in such a way as to retain it and drive it rotationally about its longitudinal axis; a linking element (11) kinematically coupled to rotary means (12) rotatably associated with the structures (7) and coupled to the rods (8) in such a way that the rods (8) are made to rotate about their longitudinal axes while they move as one with the conveyor (3); heating means (10) designed to heat the parisons (2) as the latter move along at least a part of their feed path. The linking element (11) is motor driven to enable it to control the speed at which the parisons (2) rotate about their longitudinal axes.
Abstract:
An apparatus comprises a first operating machine (208; 203; 303) arranged for processing objects (P), a second operating machine (207; 208; 306) positioned downstream of said first operating machine (208; 203; 303) and arranged for further processing said objects (P), accumulating means (252; 262) interposed between said first operating machine (208; 203; 303) and said second operating machine (207; 208; 306) and arranged for receiving said objects (P) and control means (257; 267) arranged for detecting a parameter indicating the quantity of said objects (P) contained in said accumulating means (252; 262) and regulating the operation of said second operating machine (207; 208) on the basis of said parameter. A method comprises dispensing plastics in a pasty state, during said dispensing said plastics having a dispensing temperature (T1), compression-moulding said plastics to obtain a preform, blowing said preform to obtain a container, during said blowing said plastics having a blowing temperature (T2), filling said container with a product, during said filling said plastics having a filling temperature (T3), wherein said dispensing temperature (T1) is greater than said blowing temperature (T2) and said blowing temperature (T2) is greater than said filling temperature (T3).
Abstract:
A moulding unit for a plant for blow-moulding plastic containers (2), particularly bottles, from respective parisons (3) is equipped with an interchangeable mould (16) having at least one cavity (19) for blow-moulding a respective container (2), and at least two stretching rods (33) mobile along a predetermined line (24) to engage respective parisons (3) and to axially deform the parisons (3) themselves; the stretching rods (33) being selectively mobile according to the number and/or position of the moulding cavities (19) of the mould (16) mounted on the moulding unit at a given time.
Abstract:
A plant for blow-moulding plastic containers (2), particularly bottles, from respective parisons (3) is equipped with a plurality of moulding units (15), each having at least two respective cavities (19) for blow-moulding respective containers (2), and with a transfer device (39) for transferring the parisons (3) from a flexible feed conveyor (41) to the respective moulding cavities (19). The transfer device (39) is connected to the flexible feed conveyor (41) at a transfer station (40), where the spacing (Pl) of the parisons (3) is equal to the distance (D2) between the longitudinal axes (19a) of the moulding cavities (19) of one moulding unit (15).