A device for controlling a blow-molding machine for producing a thermoplastic container, wherein a blowing gas for blow-molding the container is introduced into a thermally conditioned preform, while the preform is held in a blow mold of the blow-molding machine. The blowing gas is introduced during a preblowing phase into the preform so that the temperature-conditioned material of the preform approaches the walls of the blow mold. The blowing gas is introduced during a following finish-blowing phase into the preform so that the temperature-conditioned material of the preform is pressed into the contours of the blow mold walls. The volumetric flow rate of the blowing gas is determined at least during the preblowing phase by an adjustable flow-control valve that can be controlled by a control unit that generates a control signal for adjusting the flow-control valve. The flow-control valve is adjusted as a function of the control signal.

Disclosed is a machine for reshaping plastic preforms into plastic containers with at least one reshaping station, which has a blow moulding arrangement inside which plastic preforms can be reshaped into plastic containers by application of a flowable medium, and with an application device which is configured for applying a flowable medium to the plastic preforms, and with a valve arrangement with at least two valve devices which is configured for feeding the flowable medium under at least two different pressures to the plastic preform during the reshaping thereof. At least one valve device has at least one valve piston which is movable with respect to a valve housing between two valve positions, and a check piston which is movable between at least two positions is arranged on this valve piston.

Method for controlling a method for the manufacture of a container by stretch-blow-molding of a plastic preform (2) in a machine (1) including a mold (26), the preform (2) having a body (3), a neck (4) opening at one end of the body (3) and a bottom (5) closing the body (3) at another end thereof, the manufacturing method including the operations involving:heating the preform to a predetermined temperature in a thermal conditioning oven (10);introducing the preform (2) into the mold (26);moving a stretching pin (28) so as to stretch the preform (2); this control method involving a step that consists in determining the position of impact (P0r) of the stretch pin (28), namely the position it occupies at the moment at which it reaches the bottom (5) of the preform (2) during its movement.

The invention relates to a method for producing containers (14) from preforms (12) made of thermoplastic material by means of a blow molding machine (10) comprising at least one temperature control device (26) and one forming device having at least two forming stations (16), wherein the preforms (12) are temperature controlled by means of the temperature control device (26) on the basis of specifiable first control parameters, and wherein one temperature-controlled preform (12) is formed by means of one of the forming stations (16), respectively, on the basis of specifiable second control parameters into a container (14), wherein at least one of the second control parameters is individually specified for each of the forming stations (16). The invention furthermore relates to a blow molding machine (10), designed for executing the method according to the invention, for producing containers (14) from preforms (12) made of thermoplastic material.

Methods for manufacturing a plastic container and for filling it with a fill product are described. The methods include introducing a perform into a blow mold, pressuring the preform with a blowing medium, evacuating the interior space of the container to an underpressure, and introducing a fill product in the interior space at an overpressure.

Disclosed is a mold for the manufacture, from a blank, of a container having a body and a base provided with a peripheral seat. The mold includes: a wall bearing the impression of the body of the container and provided with an opening; a mold base which is movable relative to the wall between an extended position and a retracted position; the mold base having a peripheral surface which corresponds to a join between the seat and the base of the container and terminates in an edge which is raised with respect to the seat surface. In the extended position of the mold base, the edge extends vertically perpendicular to the opening and, in the retracted position of the mold base, the edge extends near the opening.

A stretch blow molding process for producing a plastic container from a preform, having an elongated, tubular preform body, extending along a center axis. The first end of the preform body is closed by a preform bottom and the second end is adjoined by a neck part with a pouring opening. A wall, bounds an interior space of the preform. The preform body is heated and introduced into a cavity of a blow mold. A stretching mandrel enters the preform until the stretching mandrel tip reaches the preform bottom. The preform body and the preform bottom are stretched by the stretching mandrel. The preform body and the preform bottom are deformed by introducing a fluid into the preform under pressure. The stretching mandrel makes contact with the inner side of the wall in the region of the preform body.

The present application includes an injection molding step and a stretch blow molding step. The stretch blow molding step is configured to include: a first step in which preliminary blow air is introduced into a preform to stretch the preform in a state in which a stretching rod does not contact the bottom of the preform; a second step which is executed after the first step, and in which the preliminary blow air is introduced into the preform and the stretching rod is moved at a set speed and pressed against the bottom of the preform to stretch the preform; and a third step which is executed after the second step, and in which final blow air is introduced into the preform to stretch the preform.

Method of manufacturing containers by blow-molding preforms, comprising a phase of heating the preforms (3) followed by a phase of forming the containers (this phase comprising a pre-blowing step followed by a blowing step), this method comprising the operations consisting in: detecting a pressure spike during the pre-blowing and comparing it against a reference spike, if the pressure in the pressure spike is below the reference pressure, checking an event history to determine whether a heating instruction and/or a forming instruction has been modified; if the result of this check is positive, commanding at least one of the following actions: o generating an alert alarm, o stopping the supply of preforms to the oven, o ejecting the containers derived from the affected preforms.

A method for forming and filling a container with liquid. The container being formed from a preform located within a mold and the method utilizing a hydraulic blow molding device that is coupled to a source of the liquid, which is used as the blow molding medium. The hydraulic blow molding device has a blow nozzle and a member that is extended from a retracted position to a position within the preform. A blow nozzle engages in fluid tight communication with an open end of the preform so as to provide a sealing engagement of the blow nozzle with the preform. The liquid blow medium is injected into the preform so as to form the container after sealing engagement of the blow nozzle with the preform. The member initiates its advancement into the preform prior to the time of sealing engagement of the blow nozzle with the preform.