Abstract:
A forming station comprising a source of pressurized forming fluid, and an injection device comprising an inlet, in fluidic communication with the source of pressurized forming fluid, and an outlet in fluidic communication with the inlet and through which the forming fluid is intended to be injected in the preform and further comprising a stretch rod movable in translation according to the axis of the stretch rod relative to the outlet and arranged to assist the axial deformation of the preform during a stretching phase. The forming station further comprises a vibratory device connected to the stretch rod, arranged to vibrate the stretch rod when said vibratory device is actuated, and a control device arranged to actuate the vibratory device during at least a part of the stretching phase.
Abstract:
A method using an injection device having an outlet through which a liquid is injected into a preform and includes the steps of placing a preform in a malleable state in fluidic communication with an outlet of the injection device, forming the container by expanding the preform during a forming step, the forming step including at least an injection step, wherein pressurized liquid is injected into the preform through the outlet of the injection device such that the liquid expends expands the preform into a container and fills the container. The method includes a step of heating the wall of the preform during at least a part of the forming step by vibrating the wall of the preform.
Abstract:
An injection device having an inlet, an outlet and a chamber extending between the inlet and the outlet. A piston divides the chamber into an upper chamber and a lower chamber. The piston is movable within the chamber and includes a body. The piston includes a shutter movable with respect to the body between a closed position, wherein the body and the shutter isolate the upper chamber from the lower chamber when the piston is moved in an injecting direction, and an open position, wherein the body and the shutter place the upper chamber in fluidic communication with the lower chamber when the piston is moved in a filling direction.
Abstract:
A method of forming and filling a container. The method includes the steps of placing a preform in fluidic communication with an outlet of an injection device of a forming station and forming a container by expanding the preform during a forming step, wherein a forming liquid is injected into the preform through the outlet to expand the preform into the container. The forming liquid is a cleanable liquid. The method further includes a step of transferring the formed container to a concentrate filling station, separate from the forming station and a step of filling the concentrated liquid in the container already containing the cleanable liquid. The step of filling the concentrated liquid is performed in the concentrate filling station.
Abstract:
A rotary machine includes a main axis, a plurality of first stations and a plurality of second stations. Each first station rotates around the main axis and applies a first process to a container. Each second station rotates around the main axis and applies a second process to a processed container. The machine also includes an internal exit position, at which each first station is located once the first station has completed the first process and that is arranged to release the processed container. At an internal entry position, each second station is arranged to receive the released processed container. At least one transfer arm is adapted to seize a processed container and move the processed container between a first station located at the internal exit position and a second station located at the internal entry position.
Abstract:
A rotary apparatus for hydraulic forming of shaped containers including a rotatable forming wheel having a central axis of rotation and a plane of rotation perpendicular to the axis of rotation. A plurality of forming stations is supported by the forming wheel. The forming stations are operable to expand a preform into a shaped container by forcing a liquid into the preform. The longitudinal axis of each forming station forms an angle with the plane of rotation of the forming wheel of less than 20° while the preform is being expanded. The projection of the longitudinal axis of each forming stations onto the plane of rotation of the forming wheel forms an angle with the radial direction at the position of the forming station of less than 20° while the preform is being expanded.
Abstract:
A method for manufacturing plastic containers in which, for each container, a plastic preform containing air is supplied; the preform is heated at a preform temperature over the glass temperature of the preform material, the preform is inserted in a mold having a mold cavity; and the preform is expanded to a container having the shape of a mold cavity by a forming liquid. The method also includes, between steps (b) and (d), the injecting of a gaseous product into the preform containing air, wherein the gaseous product is absorbable by the forming liquid. The injection conditions of the gaseous product are selected such that the injected gaseous product expels the air out of the preform.
Abstract:
The invention relates to a mold for molding a hollow body from a preform, the mold defining a molding cavity having the shape of the a hollow body to be molded. The mold including a first part and a second part movable relative to each other between an opened configuration, wherein the preform can be loaded inside the molding cavity, and a closed configuration, wherein the molding cavity is formed. The mold further including a locking element arranged to maintain the mold in its closed configuration in a locked position of the mold. The locking element having at least a sleeve portion arranged around a portion of the first and second parts in the closed configuration such that the sleeve portion surrounds the portion of the first and second parts and prevents the mold from moving towards its open configuration in the locked position of the mold.
Abstract:
A machine and method for forming containers from preforms. The machine includes a mold loading station for loading successive preforms into successive molds, each mold forming a mold cavity having the shape of the container to be produced. The machine also including a forming station for forming the containers by injecting a gaseous or liquid fluid into the preform contained in each mold in order to expand the preform such that each preform acquires the shape of the container defined by the mold cavity. In the machine, the mold loading station and the forming station are distinct from each other, and the machine further includes a transferring station arranged between the mold loading station and the forming station for transferring the successive molds containing the preforms from the mold loading station to the forming station.