摘要:
The method comprises the following steps: placing the outlet (18) of an injection device in tight fluidic communication with a preform (2), injecting liquid in the inner volume of the preform (2) through the outlet (18), closing a sealing barrier (57, 82) between the inner volume (10) and the liquid source (22), the closed sealing barrier forming a fluid tight closed volume (58), placing a piston member (40, 70) in said closed volume driving said piston member (40, 70) such that the liquid pressure in the closed volume (58) increases. During the actuation of the piston member, the piston member enters at least in part inside the inner volume of the preform.
摘要:
The method uses an injection device (18) comprising an outlet (26) through which said liquid is injected in said preform (2) and comprises the steps of: - placing a preform (2) in a malleable state in fluidic communication with the outlet (26) of the injection device (18), - forming the container (1) by expanding the preform (2) during a forming step, said forming step comprising at least an injection step, wherein pressurized liquid is injected in the preform (2) through the outlet (26) of the injection device (18) such that the liquid expends the preform (2) into a container (1) and fills said container (1). The wall (15) of the preform (2) is vibrated during at least a part of the forming step.
摘要:
Rotary machine (1, 100) for processing a container comprising: - a main axis (A), - a plurality of first stations (4, 94), each first station (4) being arranged for applying a first process to a container (8), each first station (4) rotating around the main axis (A), - a plurality of second stations (6, 96), each second station (6) being arranged for applying a second process to a processed container (12) already processed by the first process, each second station (6, 96) rotating around the main axis (A), - an internal exit position (14, 114), at which each first station (4) is located once said first station has completed the first process to a container (8) and is arranged to release the processed container (12), - an internal entry position (16, 116), at which each second station (6) is arranged to receive a processed container (12) and to start applying the second process to said processed container (12), - at least one transfer arm (22, 122) comprising a gripper element (44, 144) adapted to seize a processed container (12), said gripper element (44, 144) being movable between a first station (4) located at the internal exit position (14, 114) and a second station (6) located at the internal entry position (16, 116).
摘要:
Rotary machine (1, 100) for processing a container comprising: - a main axis (A), - a plurality of first stations (4, 94), each first station (4) being arranged for applying a first process to a container (8), each first station (4) rotating around the main axis (A), - a plurality of second stations (6, 96), each second station (6) being arranged for applying a second process to a processed container (12) already processed by the first process, each second station (6, 96) rotating around the main axis (A), - an internal exit position (14, 114), at which each first station (4) is located once said first station has completed the first process to a container (8) and is arranged to release the processed container (12), - an internal entry position (16, 116), at which each second station (6) is arranged to receive a processed container (12) and to start applying the second process to said processed container (12), - at least one transfer arm (22, 122) comprising a gripper element (44, 144) adapted to seize a processed container (12), said gripper element (44, 144) being movable between a first station (4) located at the internal exit position (14, 114) and a second station (6) located at the internal entry position (16, 116).
摘要:
The forming station (4) comprises: - a source of pressurized forming fluid, - a injection device (18) comprising an inlet (24), in fluidic communication with the source of pressurized forming fluid, and an outlet (26) in fluidic communication with the inlet (24) and through which the forming fluid is intended to be injected in the preform (2), - a stretch rod (50) movable in translation according to the axis of the stretch rod (50) relative to the outlet (26) and arranged to assist the axial deformation of the preform (2) during a stretching phase. The forming station (4) further comprises a vibratory device (58) connected to the stretch rod (50), arranged to vibrate the stretch rod (50) when said vibratory device (58) is actuated, and a control device (62) arranged to actuate the vibratory device (58) during at least a part of the stretching phase.
摘要:
In one aspect, the present invention provides a rotary apparatus for hydraulic forming of shaped containers comprising 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 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 expanded.
摘要:
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.