B29C2049/4664

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.

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.

Method of blow molding

Systems and methods for simultaneously forming and filling a container are provided where a pressure source is accelerated from an initial state to attain a predefined process speed while applying pressure to a volume of fluid. The volume of fluid is fluidly coupled to a preform upon attaining the predefined process speed, the pressure source directs at least a portion of the volume of fluid into the preform and stretching the preform to form the container, where the container includes at least the portion of the volume of fluid. The volume of fluid is fluidly decoupled from the container and the pressure source is then decelerated from the predefined process speed toward the initial state.

Apparatus for transforming and filling plastics material containers with controlled filling

Provided is an apparatus for expanding plastics material parisons into plastics material containers by a liquid medium with at least two transforming stations which fill and expand the plastics material parisons with the liquid medium with at least one common delivery device, which delivers the liquid medium to both transforming stations, wherein the transforming stations in each case have filling devices which fill the liquid medium into the plastics material parisons. According to the embodiments these transforming stations and/or filling devices in each case have a throttle device which are suitable and intended for changing the volume flow of the liquid entering the plastics material parisons.

METHOD AND APPARATUS FOR FORMING FINAL-SHAPED CONTAINERS USING LIQUID TO BE CONTAINED THEREIN

There is provided a system, a method and preform suitable for executing liquid forming of the preform into a final-shaped container. The present technology includes various improvements to methods, apparatuses, and systems for forming final-shaped containers from preforms using a liquid destined to be contained in the final-shaped container.

METHOD OF DEGASIFICATION OF A CARBONATED BEVERAGE-FILLED CONTAINER
20170225934 · 2017-08-10 ·

A method of degasification of a carbonated beverage-filled container in an apparatus for blowing and filling containers, the apparatus including a mold enclosing a blown and carbonated beverage-filled container. The container includes a dispensing opening, an injection head that is movable along a longitudinal axis, passing by the dispensing opening of the container, between a sealing position in which the injection head is in a sealing engagement with the dispensing opening and a non-sealing position in which the injection head spaced from the dispensing opening. The method includes the steps of moving the injection head away from the sealing position to a first non-sealing position, moving the injection head from the first non-sealing position back to the sealing position, and after moving the injection head back, moving the injection head away from the sealing position to a second non-sealing position that is different from the first non-sealing position.

Method and system for blowing and filling containers with carbonated products at ambient temperature
09724868 · 2017-08-08 · ·

The invention concerns a method of simultaneously blowing and filling a container from a thermoplastic polymer preform with a carbonated liquid at ambient temperature having, said carbonated liquid having a defined quantity of dissolved carbon dioxide (CO.sub.2) depending on the carbonated liquid beverage, comprising: —stretching the thermoplastic polymer preform (16) placed within a mold (12) during a stretching phase, —starting an injection phase for injecting said carbonated liquid into the preform, the injection phase starting after the stretching phase has started, characterized in that prior to starting the injection phase the carbonated liquid is at a predetermined pressure (P1) equal or greater than the partial pressure (P2) of the carbon dioxide (CO.sub.2) defined for said carbonated liquid beverage in the container. The invention also concerns related system.

BLOW MOLDING DEVICE
20170217076 · 2017-08-03 ·

A blow molding device with a mold into which preform is mounted and a blow nozzle that connects to a mouth tube section of the preform. The blow molding device feeds pressurized liquid from the blow nozzle into the preform and includes a blow nozzle displacement unit that raises and lowers the blow nozzle along the axis of the preform. The blow nozzle has a cap attaching unit that fixes and holds a cap, for sealing a bottle, to a mouth tube section of the bottle when the blow nozzle is lowered by operation of the blow nozzle displacement unit.

BLOW MOLDING DEVICE
20170217077 · 2017-08-03 ·

A blow molding device in which pressure is accumulated in advance in a cylinder, which is used for providing pressurized an air space about a mouth of a preform to be molding into a container within a mold using a pressurized liquid. Pressure is also accumulated in advance in an accumulator. When a pressurized liquid is supplied into the preform, the opening-closing valve of the accumulator is opened to thereby apply the accumulated pressure within the accumulator to the liquid supplied into the preform, and the opening-closing valve is closed to thereby allow the accumulated pressure within the cylinder to pressurize the air space.

Method of manufacturing liquid container
11453154 · 2022-09-27 · ·

A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a lateral folding line portion being foldable when the body is flattened in a thickness direction and extending in a circumferential direction of the body, the method including a liquid blow molding step of molding a container filled full with a liquid in a storage space by placing a preform in a mold and performing liquid blow molding; and a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the container, the body is deformed in a direction in which a thickness is increased in an area of the lateral folding line portion and a volume of the storage space is increased.