Method and apparatus for forming final-shaped containers using liquid to be contained therein
AssigneeHusky Injection Molding Systems Ltd.
InventorsChristophe Simon Pierre BECK, Jean-Christophe WITZ, Sebastian RASCHE
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Abstract
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.
Claims19
A method of forming and filling a final-shaped container using a liquid, the liquid being a product to be contained in the final-shaped container, the method comprising:
- forming a preform by injection molding in an injection molding machine;
- removing the preform from the injection molding machine by an end of arm tool;
- forming a prepared preform by blowing a base portion of the preform to a stretched size, the stretched size being less than the size of a base of the final-shaped container;
- relocating the prepared preform to a forming cavity of a forming machine for simultaneously forming and filling using the liquid to be contained in the final-shaped container, the forming cavity having an internal surface;
- sealably connecting a nozzle onto an opening of the prepared preform;
- and
- stretching the prepared preform into conformity with the internal surface of the forming cavity by filling an interior of the prepared preform with the liquid through the nozzle, pressure of the liquid entering the prepared preform causing the prepared preform to expand.
A method of simultaneously forming and filling a final-shaped container from a preform using a liquid, the liquid being a product to be contained in the final-shaped container, the method comprising:
- locating the preform in a mold cavity having an internal surface;
- sealably connecting a nozzle onto an opening of the preform;
- inserting a stretch rod through the nozzle into the opening of the preform, at least a lower portion of the stretch rod sealably connecting with an interior surface of the preform to at least partially isolate a gate portion;
- and
- stretching the preform into conformity with the internal surface of the mold cavity by:
- filling an interior of the preform with the liquid through the nozzle, and
- extending the stretch rod farther into the gate portion.
A method of simultaneously forming and filling a final-shaped container using a liquid, the liquid being a product to be contained in the final-shaped container, the method comprising:
- forming a preform, by injection molding, in a mold cavity defined at least in part between a mold core and a mold cavity portion;
- removing the preform from the mold cavity portion, the preform remaining on the mold core;
- locating the mold core and the preform disposed thereon in a container mold having an internal surface;
- stretching the preform into conformity with the internal surface of the mold cavity by filling an interior of the preform with the liquid through a channel defined by the mold core, pressure of the liquid entering the preform through the mold core causing the preform to expand.
Dependencies are inferred from the claim text.