In-mold finished neck on a continuous extrusion blow molder
AssigneeGraham Packaging Company, L.P.
InventorsDavid A. Kesselman, Roy N. Krohn, Bob Stoolmaker, John A. Garman
Life of this patent
Estimating the term…
Abstract
The invention provides a mold for use in a wheel blow-molding device. The mold has a first half and a second half, each half having a rotation direction and a transverse direction perpendicular to the rotation direction, each half having a container-shaped cavity, adapted to receive a parison, wherein the cavity has a body portion and a neck portion; and a blow pin tip disposed in the mold, adapted to be inserted into an open end of the parison in the neck portion of the cavity, the blow pin tip being adapted to blow a gas into the parison to blow mold a container.
Claims20
A mold for use in a wheel blow-molding device, the mold comprising:
- a first half and a second half, each half having a rotation direction and a transverse direction perpendicular to the rotation direction, each half having a container-shaped cavity, adapted to receive a parison, wherein the cavity has a body portion and a neck portion;
- a blow pin tip disposed in the mold, adapted to be inserted into an open end of the parison in the neck portion of the cavity, the blow pin tip being adapted to blow a gas into the parison to blow mold a container;
- further comprising a blow air cylinder coupled to the blow pin tip;
- and wherein the blow air cylinder is disposed inside of the mold.
A mold for use in a wheel blow-molding device, the mold comprising:
- a first half and a second half, each half having a rotation direction and a transverse direction perpendicular to the rotation direction, each half having a container-shaped cavity, adapted to receive a parison, wherein the cavity has a body portion and a neck portion;
- a blow pin tip disposed in the mold, adapted to be inserted into an open end of the parison in the neck portion of the cavity, the blow pin tip being adapted to blow a gas into the parison to blow mold a container;
- further comprising a blow air cylinder coupled to the blow pin tip;
- and further comprising a second blow air cylinder adapted to transport the blow pin tip in the transverse direction to a blowing position.
A method of molding a container in a wheel blow-molding device, the method comprising, closing a mold around an extruded parison, the mold comprising:
- a first half and a second half, each half having a rotation direction and a transverse direction perpendicular to the rotation direction, each half having a container-shaped cavity, adapted to receive a parison, wherein the cavity has a body portion and a neck portion;
- a blow pin tip disposed in the mold;
- inserting the blow pin tip into an open end of the parison in the neck portion of the cavity;
- and blowing a gas into the parison with the blow pin tip;
- and wherein the neck portion of the cavity is disposed behind the body portion in the direction of rotation.
Dependencies are inferred from the claim text.