S.i.p.a. Societa' Industrializzazione Progettazione E Automazione S.p.a.

Sipa S.p.a

S.i.p.a. Societa Industrializzazione Progettazion Automazione S.p.a.

S.i.p.a. Societa' Industrializzazione Progettazione Automazione S.p.a.

Massimo Coran

Matteo Zoppas

Jader Pavanetto

Marco Frare

Luigino Bischer

Andrea Mariani

Tair Hafid

A cooling and retaining pin () for cooling, by air blowing, and retaining, by air suction, a plastic preform, the pin comprising a body (), defining a longitudinal axis and having a first opening () at a first end thereof, coaxial to said longitudinal axis and adapted to be connected to a handling station; a movable element () adapted to slide at least partially inside said body; at least one air passage gap provided at a second end of the body or at said first end; wherein the movable element () is adapted to move from a first position, to which a first air passage section corresponds, to a second position, to which a second air passage section corresponds, which is smaller than said first section, so as to adjust a blowing air flow during the cooling step and a suction air flow during the step of retaining the preform.

Cooling and retaining pin for an apparatus for cooling and handling preforms made of plastic material

A support apparatus () for supporting at least one neck mold () of a plastic container, the apparatus being adapted to be fastened to a lower surface of a rotating device () of an injection blow molding machine, said support apparatus comprising—a pair of plates () defining a longitudinal axis (X), said plates () being adjacent to each other along the axis (X) and separable from each other transversely to said axis (X), and being kept adjacent in a normally closed state by elastic means (); wherein each plate () is provided with at least one respective recess positioned so that, when the plates () of said pair of plates are in the normally closed state, at least two recesses are adjacent to each other along said longitudinal axis (X) so as to define a seat for a neck mold () comprising a pair of split molds (), each split mold () being capable of being accommodated in a recess of a respective plate (); —a pair of side guides () transverse to said longitudinal axis (X), adapted to be fastened to said lower surface of the rotating device (), each side guide () being adapted to support a respective end of the pair of plates () from the bottom; wherein the side guides () are provided with a respective locking system () for locking or unlocking the pair of plates () to/from said pair of side guides () so that, in an unlocking position, the pair of plates () can be extracted transversely to the axis (X) thereof by sliding on the side guides ().

Support apparatus for supporting at least one neck mold of a container in an injection blow molding machine

An apparatus () for handling and cooling plastic preforms comprising a rotatable handling station (), provided with a plurality of retaining and cooling pins () for preforms and adapted to cooperate with an extraction plate () adapted to extract the preforms from an injection mold; an aeraulic circuit () connected to said station and comprising an aspiration duct () for aspirating air from the inside of the station; a delivery duct () for sending air to said station; cooling means () arranged along the delivery duct for cooling the air sent to said station; aspiration means () connected at least to the aspiration duct and to the delivery duct, and wherein switching means are further provided, to pass from a first circuit configuration, in which there is an air passage from the delivery duct to the inside of the station, to a second circuit configuration in which there is an air passage from the inside of the station to the aspiration duct, whereby, in the first configuration, air is blown by means of the plurality of pins, while, in the second configuration, air is aspirated by means of said plurality of pins.

Apparatus for cooling and handling preforms in plastic material

A blow mold () provided with a locking system to lock each half-mold () to the respective half-mold holder (), allowing simpler and quicker replacement of the lateral half-impressions () of the mold (). The blow mold () provides that the lateral half-impression () of each half-mold () is fixed in a cavity of the corresponding mold holder () by means of actuating at least one quick coupling device ('). Said quick coupling device (&#x2032;) comprises a force multiplier mechanism (&#x2032;) configured so as to actuate a respective locking element (&#x2032;) from an unlocking position, in which the half-mold () or a part thereof may be extracted from the mold holder (), to a locking position, in which half-mold () and mold holder () are integrally locked to each other, or vice versa.

Blow mould

A conveying and cooling apparatus for performs comprising a cooling plate (), that rotates about an axis X, and a system for supplying fluids and transmitting the rotational motion to the cooling plate, which comprises a single rotation shaft () provided with ducts () for the passage of fluids from or to the cooling plate; a mechanical support structure () arranged along the X-axis, to support the cooling plate, and comprising the rotation shaft; a motor (), arranged along the X-axis and adapted to transmit the rotation to the shaft and, consequently, to the cooling plate; and wherein fluid inlet/outlet pipes () are connected to the shaft, said mechanical support structure being configured so as to act as rotating joint that allows the distribution of said fluids from said inlet/outlet pipes to the respective ducts or vice versa.

Conveying and cooling apparatus for preforms

A device and process for conditioning plastic preforms () comprising a cooling turret () featuring faces fitted with many holders () for conditioning preforms (). This turret rotates around a horizontal axis (X) and carries out a vertical traverse between a top position under an arm (), which unloads the preforms from the mould, and a bottom position near the table for extracting the preforms () from the turret (). Tie structure of the turret consists of two parallel bars () and several joining plates () to which the bases of the holders () are attached.

Conditioning device for plastic items and process

A device and process for extracting plastic preforms () from holders. Said device comprises a plate (), which features straight slits () positioned parallel to each other, that is attached to a supporting table (). Each slit () comprises wider sections and constrictions (), which have a width (L) smaller than the diameter of the ring () of the preform, so that the ring () can be fitted into the slit () through the wider section. The plate () is moved in the direction &#x3c;&#x3c;D&#x3e;&#x3e; by a specific length until the constrictions are positioned under the ring, and, thus, the preforms are removed by moving the plate away from the holders.

Device and process for extracting plastic items

A plastic preforms () molding device and process comprising an injection mold, containing a plurality of injection cavities, an arm () for extracting the preforms () from the mold, equipped with guillotine-like gripping elements, which moves between the existing space between the half molds when in the open position in order to grasp the preforms and the external position, a cooling turret (), with the faces housing a group of cups () for the conditioning of the preforms (), which effects a rotational movement around a horizontal axis and a vertical translation movement between the high position under the extraction arm to receive the preforms and the low position corresponding to the extraction table of the preforms (), on which are indented longitudinal slots with teeth shaped constrictions in order to grasp the preforms under the ring () and to extract them from the cups ().

Injection device and process for plastic objects

The device for conditioning preforms in plastic material comprises a rotating turret (), having a group of conditioning cavities () for inserting preforms, partly through an opening on a first side (A) of the turret and partly through an opening on a second side (B) of the turret. The conditioning cavities () which open on the first side (A) are disposed in such a way that for part of their length (L) they are situated side by side with the cavities which open on the second side (B). In this way the turret becomes more compact. There is also described a conditioning method for the preforms.

Device and method for conditioning plastic objects

A device () for cooling and/or thermal conditioning of hot preforms or parisons (), in particular of parisons for the production of blow-moulded bottles made of plastic material, limits and/or reduces the deformations of said parisons during cooling by containing the transverse deformations of the end close to the opening () of the parison. The device is provided with a tubular portion of prolongation which wraps totally around the parison that rests on its internal surface with one of its sections (). Described herein is the corresponding method for cooling the parison ().

Device for cooling and thermal conditioning of a tubular object

Apparatus for handling and cooling preforms, comprising a collection element provided with a plurality of receptacles arranged according to a definite geometrical distribution pattern and adapted to accommodate a corresponding plurality of preforms, as well as a cooling element. The collection element is displaceable from a preform loading position to several distinct positions, arranged above the cooling element, which is provided with a plurality of cups collected into a plurality of distinct, but similar geometrical distribution patterns that are translated with respect to each other in such a manner as to prevent them from interfering with each other. The collection element can be selectively positioned in a number of such positions as to ensure that, in each one of said positions, the geometrical distribution pattern of the receptacles comes to be placed exactly above a specific geometrical distribution pattern of the cups, so that the preforms are capable of falling from the receptacles exactly into respective cups.

Apparatus and method for handling and cooling plastic preforms

A plant for cooling preforms has a collection and translation element provided with a plurality of receptacles adapted to accommodate respective preforms that are usually knocked out of an injection mould. A revolving-turret element has two opposite surfaces provided with a plurality of cups adapted to accommodate respective performs. The turret revolves in a controlled manner about a horizontal axis so as to successively orientate the two surfaces upwards and downwards, and the collection and translation element can be displaced with a translational motion from a preform loading position selectively to a plurality of distinct positions, which lie above the surfaces of the turret when rotated upwards, and can engage and release the preforms from the respective receptacles.

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Spresiano, Italy

Massimo Coran