B29K2105/258

Method and apparatus for blowing and filling containers with release of liquid overpressure

The invention concerns an apparatus for blowing and filling a container (22) from a preform (16), said apparatus comprising: —a mold (12) for enclosing a preform (16), —stretching means for stretching the preform (16) placed within said mold (12), —a pressurized liquid injection circuit (18) able to inject a liquid under pressure inside said preform (16) when said preform is placed inside said mold, —injection means which are adapted to inject a predetermined volume of liquid through said liquid injection circuit (18) into the preform and to stop injection of the liquid through said circuit into the preform when a blown and filled container (22) has been obtained, stopping the injection of the liquid through the liquid injection circuit into the preform creating an overpressure of the liquid within the liquid injection circuit, characterized in that the apparatus further comprises releasing means for releasing said overpressure of the liquid within the liquid injection circuit.

Electrophotographic endless belt, method for producing the same, and electrophotographic apparatus
09744732 · 2017-08-29 · ·

A high-quality electrophotographic endless belt and a method capable of efficiently producing the belt are provided. A method for producing an electrophotographic endless belt comprising a base layer including a thermoplastic resin composition and an inner-surface layer, which includes: (1) forming an energy curable film having a glass transition temperature on an inner surface of a test tube-shaped preform including a thermoplastic resin and then subjecting the preform to blow molding to obtain a blow-molded bottle; (2) irradiating the blow-molded bottle with energy rays to cure the film to form an inner-surface layer; and (3) cutting out an endless belt from the blow-molded bottle having the inner-surface layer obtained in (2).

PREFORM HAVING A VARIABLE THICKNESS AROUND A MAIN AXIS
20170239846 · 2017-08-24 ·

Preform (1) made of a plastic material for the manufacturing of a container (2) by blow molding or stretch-blow molding, the preform (1) including a sidewall (20) extending along a main axis (Z), an open neck (4) and a substantially hemispherical closed bottom (21) having a thickness (T) which varies at least locally around the main axis (Z).

STRETCH BLOW MOULDING APPARATUS AND METHOD
20170239871 · 2017-08-24 ·

A stretch blow moulding apparatus for forming an article from a parison using a mould. The apparatus comprises a stretch rod assembly; an actuating mechanism for extending and retracting the stretch rod assembly in an axial direction; and a fluid injector for injecting pressurised fluid into the parison. The stretch rod assembly comprises a body and at least one deployable member located at a free end of the body. The body and the at least one deployable member are movable in the axial direction and the at least one deployable member is deployable laterally from the axial direction.

Injection compression apparatus for manufacturing thermoplastic containers

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).

Mold component

There is provided a member of a mold stack (100, 800), the member comprising: a member body (102, 802) defining a member molding surface for defining, in use, a portion of a molding cavity for molding a molded article, a member cooling circuit (120, 820) having a plurality of member cooling channels (128, 829), the plurality of member cooling channels (128, 829) being coupled in parallel to a source of cooling fluid, the member cooling circuit (120, 820) being fully encapsulated within the member body (102, 802).

CO-INJECTION HOT RUNNER NOZZLE

A co-injection hot runner nozzle comprises an inner melt flow channel and an annular outer melt flow channel that surrounds the inner melt flow channel. The inner and outer melt flow channels have a first common source. The nozzle further comprises an annular intermediate melt flow channel disposed between the inner and outer melt flow channels. The annular intermediate melt flow channel is at least partly defined by a plurality of spiral grooves, each spiral groove having a respective inlet and defining a helical flow path. Lands between adjacent spiral grooves increase in clearance in a downstream direction. An annular axial flow path is defined over the lands. A plurality of feeder channels having a second common source is configured to supply melt to the plurality of inlets of the spiral grooves. The relationship of feeder channels to spiral grooves may be one-to-one. The inlets may be longitudinal channels.

PRESSURE VESSEL AND ALSO APPARATUS AND PROCESS FOR PRODUCING A PRESSURE VESSEL BLANK COMPRISING AT LEAST ONE CONNECTION ELEMENT
20170234486 · 2017-08-17 ·

The present embodiments provide an apparatus for producing a pressure vessel blank, comprising at least one connection element, a multi-part blow-moulding tool, and at least one blowing pin. The present embodiments further provide a pressure vessel comprising at least one connection element, a pressure vessel blank, and a supporting shell connected to and supporting the pressure vessel blank. An aspect of the present embodiments provides a process for producing a pressure vessel blank using an apparatus comprising at least one connection element that enables a shortened time for producing a pressure vessel blank with increased stability under pressure.

Injection Device for a Forming and Filing a Container using a Pressurized Liquid
20170232655 · 2017-08-17 ·

An injection device for injecting a pressurized liquid into the preform. The injection device includes a piston device having a piston body with a piston head arranged to reciprocate therein. The piston head cooperates with a sealing portion of the piston body to fluidicly isolate an inner chamber of the piston device. The piston body being in fluidic communication with a liquid source for admitting liquid into the inner chamber. The piston body including at least two outlet ducts for delivering pressurized liquid to the injection head. Each outlet duct opening defining an outlet port in a wall of the inner chamber. Each outlet port being centered on an outlet port center, wherein all the outlet port centers extend in the same radial planes of the inner chamber, are at the same distance from the piston axis and are arranged angularly in a regular manner around the piston axis.

FUEL TANK FOR A MOTOR VEHICLE
20170232834 · 2017-08-17 · ·

A fuel tank and a method for producing a fuel tank for a motor vehicle. The fuel tank is designed as a blow-molded hollow plastic member, into the interior of which a functional component support is introduced. The support, to which functional components, such as a fuel pump, a level indicator or valves can be secured, includes at least one supporting leg to be supported on an inner face of the hollow plastic member delimiting the interior thereof. The supporting leg of the functional component support is designed to include a connection point to which a functional component can be connected.