Abstract: Blowing mold (10, 100) for blowing thermoplastic material containers, comprising two half molds (1, 2) and a device for the cyclic opening and closing of the half molds (1, 2) which comprises a control shaft connected to the half molds by means of connecting rods (14, 20) and a control hub (15). The control hub is provided with a plurality of holes appropriately positioned so that by choosing the holes to which the connecting rods are hinged, it is possible to change the maximum opening angle of the mold.

Abstract: A blow mold for making PET containers comprising an inner surface corresponding to the outer outline of the container, on which there are one or more cavities or projections configured to make corresponding respective projections or cavities of the outer surface of the container, wherein the mold comprises one or more venting grooves along the edge delimiting said cavities or projections. A plurality of venting holes are possibly arranged along such grooves, as well as it is also possible for some venting holes to be arranged outside thereof. The width and depth of these are selected according to the wall thickness of the container to be blown to prevent that the deformation of the container during the blowing obstructs the venting grooves and leaves visible marks on the container.

Abstract: An apparatus for conveying a container made of plastic material comprising a supporting frame (3), sliding along a predetermined path; a longitudinal rod (20), defining an axis (X), adapted to translate along axis (X) and/or to rotate about axis (X) through guide-holes (24?, 25?) provided in the supporting frame; a gripping device (22), fixed to the longitudinal rod, for picking and withholding an end of the container to be conveyed; wherein the translation strokes of the longitudinal rod (20) and of the gripping device (22) can be adjusted along axis (X) so that the gripping device (22) can operate at three working levels or positions: a resting position (L0), a gripping position (L1) and a releasing position (L2).

Abstract: An injection mold component for molding the outer surface of a preform neck, which allows improved cooling of the preform neck inside the mold, while at the same time reducing the mold cycle time. A related production process of said injection mold component, which allows the section of the cooling channels to be optimized, determining a more effective cooling, is also described.

Abstract: An innovative neck (301) configuration is suggested in order to reduce the weight of a large container for beverage dispenser. The neck (301) comprises a neck finish (303) which extends in length (Ltot) starting from the wide mouth (302) of the container to an annular support ring (305) and a smooth surface cylindrical portion (306) which joins the annular support ring (305) to the body (309) of the container. For functional reasons, the total length (Ltot) of the innovative neck (301) remains the same as the usual traditional necks for this type of container, but due to the short length (Ltot) of the neck finish (303) and said cylindrical portion (306), the weight is reduced.

Abstract: An injection mold of a plastic preform includes first, second and third parts, the third part having a molding cavity defining an axis and adapted to be fixed to a first surface of a mold frame; the second part between the first and third parts slides along the axis to close or open the cavity. The first part includes a rod that slides along the axis through a second surface of the frame. The second part includes: a guiding cage through which the longitudinal rod can slide; a structure; and parallel guiding rods extending to the structure; an assembly sliding inside the cage; and a punch sliding inside the structure and defining a first complementary component of the cavity; wherein the structure defines, together with the punch, a cam system for opening or closing two half-collars which define, when closed, a second complementary component of the cavity.

Abstract: A blow mold for PET bottles has the inner surface which contacts the hot PET during the blowing operation, coated with a layer of ceramic material having a nanometric thickness, of which at least one thickness layer is AI2O3 and/or TiO2 deposited by ALD technique. Due to this technique, the PET preforms are subject to less friction during the contact with the interior of the mold.

Abstract: An injection-compression plant for manufacturing PET performs comprises an extruder (1) to produce a melted resin, a distribution joint (3) for distributing the melted resin from the extruder (1) towards the injection-compression molds (9?, 9?, 9?), gathered in modular groups of three on supporting frames (21) arranged about the peripheral surface of the rotary carousel (2). The joint (3) allows to transfer the fluid thermoplastic resin from the stationary channel (10) of the extruder (1) to the lateral feeding conduit (27) of each molding module (9), said lateral feeding conduit being rotating with the carousel (2). The injection-compression molds (9?, 9?, 9?) have the two half-molds forming the molding cavity (41?, 41?, 41???) connected by means of bayonet couplings to the frame (21). The molded preforms are extracted from the carousel (2) by means of a wheel (50), which transfers them to an air cooling device (51).

Abstract: A bottle made of PET which can be filled with a hot, warm or cold liquid has a neck, a body and a closed bottom. The body has a peripheral groove for pressure relief capable of collapsing in a controlled manner under the bias of an externally applied vertical axial load. The structure of the groove is such that after collapsing the bottle will not be able to resume its original shape unless it is subjected to the application of another external force of sufficient strength in reverse direction with respect to the force which was applied to obtain the collapsed shape.

Abstract: A gripping device for supporting preforms made of a thermoplastic material, having necks with a different length, such necks having, in turn, a step obtained therein which may abut against a step obtained on the outer surface of the gripping device, i.e., the chuck, such a step of the chuck being located, for each preform, always at the same distance from the neck ring base.

Abstract: An apparatus for conveying a container made of plastic material comprising supporting frame (3), sliding along a predetermined path; a longitudinal rod (20), defining an axis (X), adapted to translate along said axis and/or to rotate about said axis through guide-holes (24?, 25?) provided in the supporting frame; a gripping device (22), fixed to a first end of the longitudinal rod, for picking and withholding an end of the container to be conveyed; wherein actuation means are provided for actuating the translation strokes of the longitudinal rod (20) and of the gripping device (22) along said axis (X), so that the gripping device (22) can operate at three working levels or positions: a first resting position (L0), a second gripping position (L1) and a third releasing position (L2).

Abstract: A large container (100) for a water dispenser having side handles (8) formed as recesses in the side wall of the container (100) and bottom handles (9) formed as recesses in the central portion of the bottom (3) of the container (100). The side handles (8) and the bottom handles (9) are provided for facilitating the lifting and the transport.

Abstract: A rotary joint for transferring melted plastic from at least one extruder to a plurality of molds of a rotary machine for molding preforms, the joint comprising a fixed structure (3?) provided with a fixed longitudinal element (23) therein, defining a longitudinal axis (Y), and a movable structure (3?) which can rotate about said axis (Y) and is adapted to be integrally fixed to the rotary machine; wherein a first passage channel (11) is provided within said fixed element (23); wherein a second passage channel (11?) is provided within said movable structure (3?) and coaxial to said first passage channel; said second passage channel (11?) being in communication at a first end thereof with said first passage channel (11), and being in communication at a second end thereof with a plurality of lateral radial channels (52) provided within said movable structure (3?); wherein there is provided, between the fixed structure (3?) and the movable structure (3?), a gap in which a spiral seal (24) is arranged for ensurin

Abstract: The invention relates to a new PET preform design that enables a more precise distribution of material in the bottle bottom and avoids the waste of material around the injection point. The thickness BWTmin of the wall at the center of the gate or tip (3) (injection point) is reduced to a minimum in order to avoid the waste of material around the injection point when the preform is blown. This is particular important for carbonated soft drink application since the reduced amount of amorphous material at the center of the gate (3) helps to reduce the risk of stress cracking on the bottle base. Furthermore a step (4) having thickness WTmax in the body wall thickness, in the region of the periphery of the base with WTmax>WT, allows enough material to be available for the proper blowing of the bottle bottom making the bottle more stable.

Abstract: The invention relates to a container (100) for drinks suitable for hot filling and compressible so as to be able to draw the drink out by means of a pressure exerted on the side walls. The container comprises a central body (3) with vacuum compensation function which is created following the cooling of the fluid after the hot filling. Said central body comprises four trapezoidal-shaped panels (1) and is limited on the top and on the bottom by a set of ribs (6,7) and rings (8,9).

Abstract: A plant for the production of containers made of PET comprises at least one rotary carousel for the production of preforms (2) and at least one zone, in which the preforms are either stored or they may be blown on another rotary carousel. The molded preforms are extracted from the carousel (2) by means of a transfer starwheel (50) provided with grippers (4) capable of performing complex translating-rotating type movements and independent grasping movements. The grippers (4) are provided with two suction jaws (90a and 90b) to make the grasping of the preforms more reliable when they are released from the rotary carousel for the production of the preforms (2).

Abstract: The invention relates to an apparatus for cooling a plurality of preforms made of thermoplastic material which continuously move on a conveyor belt. The apparatus includes a cylindrical casing with a vertical extension formed by two coaxial cylinders, such a casing contains a guide crossed by a chain or a cable for transporting the preforms therein. The guide, which forms a closed path, comprises a first helical stretch, which raises from the lower plane starting from a station in which the preforms coming from a conveying device are hooked by the chain or by the cable, a second straight stretch, which returns the preforms to the lower plane once they have reached the upper plane, and a third flat stretch at the height of the lower plane, which returns the preforms to the arrival station. The helical stretch of the guide is contained within a cooling tunnel formed in the gap between the two walls of the outer cylinder and the inner cylinder of said casing.

Abstract: A gripping head (1) comprises a supporting element (11), e.g. a horizontal plate, adapted to rotate about a first rotation axis (&alpha,-) with which two or more grippers (12) are pivotally associated, so that each gripper is adapted to rotate about a symmetry axis (?) thereof, said rotation axes being parallel to each other, and being the rotation motion of each gripper independent from the others. Therefore, each gripper is adapted to rotate about a symmetry axis (?) thereof and revolve about the rotation axis (?) of the supporting element with which they are pivotally associated. A preferred plant, comprising said gripping head (1), comprises a belt conveyor and a mechanical limb (2) with which said gripping head (1) is pivotally associated.

Abstract: The part under the neck ring (9) of a preform for blowing a PET bottle of predetermined capacity not larger than 75 cl and with a max. material weight of 15 g, is inclined by an angle ? less accentuated than normal, max. 17°, which allows to make a preform with a thickness t2 of the wall thinner than 1.9 mm and a thinner inner diameter of the preform body in order to allow a lower stretch ratio starting from a larger preform to obtain the final bottle of predetermined capacity.

Abstract: A plastic material container, e.g. a beverage bottle, having a neck which requires the use of a smaller amount of plastic than the bottle necks of the prior art, and which is able to ensure a complete functionality for coupling the cap, ensuring at the same time the possibility of implementing the traditional supporting; sealing and handling operations of the bottle carried out during the various steps of manufacturing the same.