A device for producing plastic containers (10) by means of a molding, filling and sealing process is disclosed, at least consisting of a molding device (16) having individual molding tools (18), which can be moved repeatedly relative to one another from an open receiving position into a molding sealing position, and an extrusion unit (12), which can be used to insert at least one extruded plastic hose (14) into the open receiving position of the molding tools (18), which is characterized in that a traversing unit (20) can be used to move the extrusion unit (12) in conjunction with each extruded plastic hose (14) in opposite directions with respect to the molding device (16), which is stationary in every position of the molding tools (18).

A reciprocating blow molding unit includes an extruder screw foundation and an extrusion unit coupled to the extruder screw foundation. The extruder screw foundation includes a screw housing formed to include an interior cavity configured to receive polymeric material. The extrusion unit includes an extruder screw arranged to lie at least partially within the interior cavity and is configured to rotate about a longitudinal rotation axis to advance the polymeric material through the interior cavity.

A blow molding assembly includes a die, a mandrel, and a die holder. The die defines an inner wall. The mandrel is disposed at least partially inside the inner wall of the die and defines, with the inner wall of the die, an annular gap that shapes a molten resin passed therethrough, forming a parison. The die holder includes a body and three or more spring-loaded fasteners positioned around an inner perimeter of the body. The spring-loaded fasteners apply pressure to respective positions on an outer surface of the die while permitting movement of the die within a plane that is substantially orthogonal to a longitudinal axis of the mandrel in response to pressure variations of the molten resin, keeping a thickness of the parison substantially even. Each of the spring-loaded fasteners includes a spring-loaded plunger engaging the respective position on the outer surface of the die.

A blow molding assembly includes a die, a mandrel, and a die holder. The die defines an inner wall. The mandrel is disposed at least partially inside the inner wall of the die and defines, with the inner wall of the die, an annular gap that shapes a molten resin passed therethrough, forming a parison. The die holder includes a body and three or more spring-loaded fasteners positioned around an inner perimeter of the body. The spring-loaded fasteners apply pressure to respective positions on an outer surface of the die while permitting movement of the die within a plane that is substantially orthogonal to a longitudinal axis of the mandrel in response to pressure variations of the molten resin, keeping a thickness of the parison substantially even. Each of the spring-loaded fasteners includes a spring-loaded plunger engaging the respective position on the outer surface of the die.

A blow molding apparatus is provided with a mold carriage movable in a path between an extruder station and a blow-and-fill station. The mold carriage can have one or more mold assemblies. Each mold assembly has opposed first and second mold halves that together define a mold cavity. The first mold half is fixed to the mold carriage while the second mold half is independently movable relative to the first mold half within the mold carriage to open and close the mold assembly.

A blow molding apparatus is provided with a mold carriage movable in a path between an extruder station and a blow-and-fill station. The mold carriage can have one or more mold assemblies. Each mold assembly has opposed first and second mold halves that together define a mold cavity. The first mold half is fixed to the mold carriage while the second mold half is independently movable relative to the first mold half within the mold carriage to open and close the mold assembly.

A gas shield generator positionable over open parisons in a Blow/Fill/Seal machine prior to container forming, filling and sealing minimizes likelihood of particulate contamination of open parisons while the open parisons are transported to a parison blowing and filling station.

A device for producing plastic containers (10) by a molding, filling and sealing process includes a molding device (16) having individual molding tools (18), which can be moved repeatedly relative to one another from an open receiving position into a molding sealing position, and includes an extrusion unit (12), which can be used to insert at least one extruded plastic hose (14) into the open receiving position of the molding tools (18). A traversing unit (20) moves the extrusion unit (12) in conjunction with each extruded plastic hose (14) in opposite directions with respect to the molding device (16), which is stationary in every position of the molding tools (18).