摘要:
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).
摘要:
A conveying and cooling apparatus for performs comprising a cooling plate (12), 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 (14) provided with ducts (7, 8) for the passage of fluids from or to the cooling plate; a mechanical support structure (6) arranged along the X-axis, to support the cooling plate, and comprising the rotation shaft; a motor (10), 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 (3, 4) 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.
摘要:
Plastic container manufacturing plant comprising devices for injection-compression of plastic in molds and effected by means of at least one rotary carousel actuated by electro-pneumatic actuators, of the single-stage type integrating at least one first rotary carousel (2) for molding of the preforms and a second rotary carousel (7) for stretch blow molding of the preforms. Moreover, the plant comprises a transport system (5) between said first (2) and second rotary carousel (7) comprising further handling wheels, of which at least one (8) comprises means for thermal conditioning of the preforms.
摘要:
A sterilization system for PET containers and bottles including at least one electron flow generator 1, a scan gun 2 and at least one target 4 preferably made of heavy metal, so that when a part of the electron radiation hits said target a reflected X ray radiation is generated, which contributes to the sterilization of the containers. A certain amount of liquid or gaseous oxygen which upon collision with the electron radiation is converted to ozone is also exposed to the radiation, thus further contributing to the sterilization.
摘要:
A blow mould for containers wherein the mould base comprises a first member (5) and a second member (6) connectable to each other by means of a quick coupling system comprising at least one first connection pin, wherein said second member (6) includes a first slider (13), defining a first sliding direction on a plane orthogonal to the longitudinal axis of the mould and capable of taking an unlocking position and a locking position, said first slider (13) being provided with at least a hole in order to lock the first connection pin when the first slider (13) is in the locking position, and a second slider (16) defining a second sliding direction on said plane, intersecting said first direction; said second slider (16) being slidable along said second direction from a position of mechanical connection with the first slider (13) to a position of releasing from said first slider.
摘要:
A rotary cooling apparatus for cooling preforms (P) made of thermoplastic material, comprising: —a carousel (1) defining a periphery thereof and adapted to rotate about a substantially vertical rotation axis; —at least one fixed guide element (6) arranged along at least part of said periphery; —a plurality of cooling devices (3) radially arranged along the periphery of the carousel, each cooling device (3) being adapted to substantially horizontally translate along a radial direction with respect to said rotation axis, and provided with a plurality of cooling tubes (4) arranged in sequence along said radial direction and adapted to receive a respective preform to be cooled; —a plurality of picking and releasing devices (5), each picking and releasing device (5) cooperating with a respective cooling device (3) and being adapted to pick a preform from a transfer wheel, release said preform alternately into one of said cooling tubes (4) and pick said preform again to release it downstream of said rotary apparatus, said at least one picking and releasing device (5) being adapted to translate upwards or downwards transversely to said radial direction by cooperating with said at least one fixed guide element (6) during a rotation of the carousel (1).
摘要:
A preform (3) of a plastic container, comprising an outer preform (1) and an inner preform (2) inserted into the outer preform (1); wherein the outer preform (1) and the inner preform (2) are made of a mutually different material, in particular of a mutually different polymer; wherein the outer preform (1) is provided with at least one vertical protrusion (14) in contact with the inner preform (2); and wherein the outer preform (1) is made of a polar polymer and the inner preform (2) is made of an apolar polymer.
摘要:
An apparatus for hot or warm filling comprising a compression machine configured to apply an axial compression force to a collapsible thermoplastic container for liquids. The compression machine includes a lower body having a surface designed to be a resting surface for the base of the container; at least one upper body designed to contact a portion of the container above the peripheral groove, so that the container can be held in an upright position by the at least one lower body and the at least one upper body; actuating means for actuating the at least one lower body and/or the at least one upper body in order to apply said axial compression force, acting along a direction parallel to the longitudinal axis of the container, in order to make the proximal straight side to come into contact with the distal straight side, thus reducing the internal volume of the container.
摘要:
A component for a nozzle for injecting molten plastic into a molding cavity of a container, in particular of a test tube or a bottle preform, the component comprising a first body in which a shutter can slide along an axis; wherein the first body has a wall which extends about said axis; wherein said wall is provided with a first zone adapted to guide the sliding of the shutter along the axis, and a second zone which delimits a first stretch of a channel for the molten plastic; wherein said first body is provided with at least one through hole which crosses said wall, in particular transversely to the axis, which allows the molten plastic to pass through, in particular to enter, said first stretch of the channel.
摘要:
A blow mold provided with a locking system for mutually locking each half-mold with the related half-mold holder, thus allowing a simpler and quicker replacement of the side half-impressions of the mold. The blow mold of the invention provides for the side half-impression of each half-mold to be fixed in a cavity of the corresponding mold holder by actuating at least one quick coupling device comprising a bar (23) inserted in one of the two longitudinal edges of the half-mold holder (3) and adapted to move only by rotation about an axis thereof; actuation means (22) adapted to actuate a rotation of said bar; and at least one locking fin (21) fixed along said bar (23) and adapted to move, by rotating the bar (23), from an unlocking position to a locking position in which said locking fin interacts with the respective half-mold (2).