The present invention relates to a method and an apparatus for producing containers filled with a liquid filling material from preforms by introducing pressurized filling material into the preform. The object of the invention is to propose such a method and such an apparatus in which both the desired filling pressure and the desired volumetric flow rate of the filling material are reliably available throughout the entire molding and filling phase. The object of the invention is achieved by a method in which the filling material is pressurized by a pressure pump 7 and is introduced into the preform 1 through a filling valve 6 at a molding and filling station 3, said method being characterized in that, when the filling valve 6 is closed, a pressure accumulator 10 disposed between the pump 7 and the filling valve 6 is pressurized by the pump 7 and filled with a volume of filling material, and when the filling valve 6 is open, the pressure accumulator 10 delivers the accumulated pressurized filling material to the preform 1. The object of the invention is further achieved by a corresponding apparatus that comprises a pressure pump 7 and a filling valve 6, connected to one another by a feed line 2, characterized in that said apparatus comprises a pressure accumulator 10, disposed in the feed line 2 between the pressure pump 7 and the filling valve 6.

A liquid blow molding method includes: a preliminary pressurizing step of operating a pressure feeding source to preliminary pressurize a liquid between the pressure feeding source and a blow nozzle; an operating condition setting step of setting an operating condition of the pressure feeding source on the basis of data acquired by the preliminary pressurizing step; a blow molding step of liquid blow molding a preform into a container of a predetermined shape; and a suck-back step of operating the pressure feeding source in a reverse direction on the operating condition set in the operating condition setting step to suck back the liquid from inside of the container molded into a predetermined shape in the blow molding step toward inside of the blow nozzle.

The invention relates to a molding and filling station of a system for manufacturing filled containers from preforms (10) by means of liquid filling material (15) introduced into the preform (10) under pressure, said molding and filling station comprising a stretch rod (11) and a liquid duct (16) which can be controlled by means of a filling valve (14) and which is designed to surround the stretch rod (11) at least partially and ends in at least one outlet opening (17) which can be placed on the orifice (18) of the preform (10), the molding and filling station being characterized in that a gas barrier (20) is arranged in the liquid duct (16) between the filling valve (14) and the outlet opening (17).

A filling cylinder assembly for a container forming and filling system that simultaneously forms and fills a container from a preform with fluid. The filling cylinder assembly includes a cylinder having an inner wall defining a cavity. A piston head is at a distal end of a piston rod. An insert is configured to be seated in the cavity to provide the cavity with a reduced volume such that with the insert seated within the cavity the cavity has a first volume, and without the insert seated in the cavity the cavity has a second volume that is greater than the first volume.

A construction that prevents liquid from dripping from a nozzle and adhering to a product when the nozzle is separated from a mouth of the product after liquid-blow molding. A preform includes a mouth, a body, and a neck support portion, and is provided with a step surface on an inner peripheral face adjacent to the neck support part. A liquid blow molding apparatus includes a nozzle that is inserted in the mouth of the preform, a pressurized liquid-supply unit that supplies pressurized liquid to the nozzle, and a sealing member that is formed in a cylinder and fits on an outer peripheral face of the nozzle abuts the step surface, in an axial direction, when the nozzle is inserted in the mouth of the preform to seal the gap between the nozzle and the inner peripheral face of the preform.

In a manufacturing method of a liquid containing container, a capper has a container holding portion configured to be displaced at a constant first velocity in the circumferential direction of a first central axis, the method including: a liquid blow molding step of molding a preform disposed in a cavity of a mold into a container body having a barrel containing a liquid; an intermediate conveying step of, after the mold is opened, gradually accelerating the container body to a third velocity and delivering the container body to a carrier of a rotary conveying machine by an intermediate conveying device; a rotary conveying step of conveying the container body and delivering the container body to the container holding portion by the carrier of the rotary conveying machine; and a capping step of attaching a cap while the container body is conveyed by the container holding portion.

1. Device for producing and filling container products 2. A device for producing and filling container products, in which at least one hose (19) of plasticized plastic material can be extruded into an opened mold (7) starting from an extrusion head (13) along a hose guide, wherein by means of at least one filling mandrel (1), which at least in one functional position extends through the extrusion head (13), a filling material can be introduced into the relevant container and wherein at least one process gas feeder device (21, 23) can be used to bring a process gas into the interior of the hose (19), wherein the process gas feeder device (21, 23) has a guide duct (21) extending inside the extrusion head (13) along the outside of the filling mandrel (1), is characterized in that at least part of the process gas introduced is discharged through the extrusion head (13) along at least one predeterminable exhaust gas duct (35), which is separated from the relevant guide duct (21).

A liquid blow molding apparatus includes a rod guide interposed between the seal body and the stretching rod to suppress misalignment in the radial direction of the stretching rod with respect to the seal body and to seal a gap between the seal body and the stretching rod in a fluid-tight manner, and the seal body has a detachable portion detachably attached to the main body of the seal body to hold the rod guide between the detachable portion and the main body.

Method and device for producing containers which are filled with a liquid filling substance from parisons made from a thermoplastic material, wherein the respective parison is at least conditioned thermally and is subsequently shaped into the container during a shaping and filling phase in a mould by way of at least one liquid filling substance as pressure medium, and wherein, while it is being shaped into the container, the prison is preferably guided at least temporarily through a stretching rod and is stretched in the axial direction.

An apparatus for transforming a pre-form into a container filled with liquid filling-material includes a feed line, a high-pressure source, a removal line, and a molding station having a mold, a mold space, and a mold head that permits liquid filling-material to be introduced into the pre-form under a filling pressure sufficient to transform the pre-form into a container and to seal against an opening of the pre-form as liquid filling-material flows through the feed line. The high-pressure source is in fluid communication with the liquid filling-material in the container such that exposure of the liquid filling-material to gas pressure in excess of the filling pressure pushes a pre-determined volume of the liquid filling-material out of the container, thereby forming a headspace in the container.