Patent classifications
B29C49/1226
METHOD FOR MANUFACTURING BY STRETCH BLOW MOLDING OF A CONTAINER AT HIGH STRETCHING SPEED
Disclosed is a method for manufacturing a container by stretch blow molding starting from a preform made of plastic material within a forming unit that includes: a mold that is provided with a side wall and a mold bottom having the impression, jointly, of the container; and a stretching rod that is mounted to move in translation in relation to the mold between an upper position and a lower position. The method includes: a pre-blow-molding phase during which a fluid with a pre-blow-molding pressure is injected into the preform, and the rod is moved from its upper position to its lower position with a maximum travel speed of greater than or equal to 2.5 m/s.
Preform for a blow molding operation
A method and a preform for blow molding to form a plastic container are disclosed, the preform having a coating formed on an inner surface thereof. The coating reduces a loss of heat energy from the heated preform during expansion thereof to ensure the preform maintains a temperature at or above the phase change/solidification temperature of the material forming the preform.
PREFORM FOR A BLOW MOLDING OPERATION
A method and a preform for blow molding to form a plastic container are disclosed, the preform having a coating formed on an inner surface thereof. The coating reduces a loss of heat energy from the heated preform during expansion thereof to ensure the preform maintains a temperature at or above the phase change/solidification temperature of the material forming the preform.
METHOD FOR FORMING AND FILLING A CONTAINER WITH AN END PRODUCT COMPRISING A CONCENTRATED LIQUID
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.
Apparatus and method of shaping plastics material pre-forms into plastics material containers with stretch bar movement sealed off by rolling diaphragm
An apparatus for shaping plastics material pre-forms into containers includes a blow molding station on a movable conveying device. The station has a blow mold forming a cavity in which the pre-forms are expandable by a gaseous medium. A stressing device acts upon the pre-forms with the gaseous medium to expand them. A clean room surrounds the blow molding station at least in part. A stretching unit stretches the pre-forms along their longitudinal direction and includes a stretch bar movable with respect to the plastics material pre-forms. The stretch bar is insertable into the pre-forms. The station has a receiving space with a wall for receiving the stretch bar, which is movable relative to the receiving space and which surrounds the stretch bar at least in part. A flexible sealing device, which separates a sterile room area from a non-sterile room area, is arranged inside the receiving space.
Method and device for blow-molding containers
The method and the device are used for blow-molding containers. A preform made of a thermoplastic material is first subject to a thermal conditioning operation along a transport path in the region of a heating section. Thereafter, the preform is formed into the container inside a blowing mold by applying blowing pressure. While the preform is shaped into the container, at least one parameter (49, 50) characterizing the shaping is measured and evaluated by a control unit. Depending on said evaluation, at least one controlled variable (48, 46) influencing the shaping operation inside a closed loop is varied in order to match the measured parameter to an associated target value. In this way, it becomes possible to subject the container parison developing during the blow-molding operation to a predetermined defined development.