A system for forming a container from a preform includes a first mold having a plurality of first portions that cooperate to define a first internal surface against which the preform is blown for forming a first form. The system also includes a second mold having a plurality of second portions that cooperate to define a second internal surface against which the first form is blown for forming a second form. Also, the system includes a mold servo motor that actuates the plurality of first portions relative to each other and/or actuates the plurality of second portions relative to each other. Furthermore, the system includes a controller that controls the mold servo motor for controlled actuation of the plurality of first portions and/or the plurality of second portions.

Disclosed is a method for heating plastic preforms, wherein the plastic preforms are transported within a heating device along a predetermined transport path and are heated to a predetermined temperature during this transport by a plurality of heating devices arranged along the transport path, and wherein a heating power of the heating devices impinging on the plastic preforms can be varied. The heating power of the heating devices impinging on the plastic preforms is controlled depending on a transport speed of the plastic preforms.

Provided is a blow-molding method capable of suppressing generation of blister-like bubbles and producing a high quality hollow molded article when forming a thick hollow molded article by blow-molding. A blow-molding method includes setting a die-slit interval in a die head according to a target wall thickness of a hollow molded article to be molded, extruding a molten resin in an accumulator into a cylindrical shape from the die slit to form a parison, and molding the parison in a mold. The die-slit interval is made smaller than a value set according to the target wall thickness at start of extrusion, and then is increased to match the value set according to the target wall thickness. The value set according to the target wall thickness is preferably corrected considering wall thickness reduction due to drawdown. The wall thickness of the hollow molded article is preferably 3.5 mm or more.

Provided is a blow-molding method capable of suppressing generation of blister-like bubbles and producing a high quality hollow molded article when forming a thick hollow molded article by blow-molding. A blow-molding method includes setting a die-slit interval in a die head according to a target wall thickness of a hollow molded article to be molded, extruding a molten resin in an accumulator into a cylindrical shape from the die slit to form a parison, and molding the parison in a mold. The die-slit interval is made smaller than a value set according to the target wall thickness at start of extrusion, and then is increased to match the value set according to the target wall thickness. The value set according to the target wall thickness is preferably corrected considering wall thickness reduction due to drawdown. The wall thickness of the hollow molded article is preferably 3.5 mm or more.

An injection blow molding apparatus comprises: a first oil supply section 100A which has a hydraulic drive source composed of a drive motor, whose number of revolutions can be controlled, and a hydraulic pump and which supplies oil from an oil tank 90 to an injection mold drive unit 72 provided in an injection mold unit 70; and a second oil supply section 100B which has a hydraulic drive source composed of a drive motor, whose number of revolutions can be controlled, and a hydraulic pump and which supplies oil from the oil tank 90 to a blow mold drive unit 42 provided in a blow mold unit 41, the second oil supply section 100B being provided independently of the first oil supply section 100A.

Provided is an apparatus for heating plastic preforms, with a transport device which transports the plastic preforms along a predefined transport path, wherein this transport device has a plurality of holding elements for holding the plastic preform, and with at least one first heating section which is arranged along the transport path, and at least one second heating section which is arranged along the transport path downstream of the first heating section, wherein the heating sections each include a plurality of independently controllable heating elements which allow heating of the plastic preforms in several heating zones, lying above each other in the longitudinal direction of the plastic preforms, with a temperature profile which changes in the longitudinal direction of the plastic preforms, wherein the apparatus includes a control device for controlling these heating sections.

Provided is a device for treating containers, comprising a heating device for heating plastic preforms, wherein the heating device has a plurality of heating stations which are suitable for individually heating the plastic preforms, and wherein the heating device has a transport device which transports the plastic preforms individually through the heating device, and comprising a reshaping device which is suitable and intended for reshaping the plastic preforms heated by the heating device into plastic containers. This reshaping device is arranged downstream of the heating device in the transport direction of the plastic preforms, and the reshaping device has a movable support, on which a plurality of reshaping stations are arranged for reshaping the plastic preforms into the plastic containers. The device also comprises a transport device, for transporting the heated plastic preforms individually from the heating device to the reshaping device, and a decorating device.

Provided is a device for treating containers, comprising a heating device for heating plastic preforms, wherein the heating device has a plurality of heating stations which are suitable for individually heating the plastic preforms, and wherein the heating device has a transport device which transports the plastic preforms individually through the heating device, and comprising a reshaping device which is suitable and intended for reshaping the plastic preforms heated by the heating device into plastic containers. This reshaping device is arranged downstream of the heating device in the transport direction of the plastic preforms, and the reshaping device has a movable support, on which a plurality of reshaping stations are arranged for reshaping the plastic preforms into the plastic containers. The device also comprises a transport device, for transporting the heated plastic preforms individually from the heating device to the reshaping device, and a decorating device.

Objects, such as, for example, preforms for producing PET bottles, are feedable to silo as bulk material by a bulk material feeding device. A fill level sensor of the silo is connected to the control device. The control device actuates the feed drive in order to refill the silo with objects in dependence on the determined fill level of the silo. Connected downstream of the silo is an overhead conveyor and downstream of the overhead conveyor a separating-into-singles system. Both the overhead conveyor and the separating-into-singles system comprise sensors and drives, all the sensors being connected to the control device and the control device controlling all the drives.

Objects, such as, for example, preforms for producing PET bottles, are feedable to silo as bulk material by a bulk material feeding device. A fill level sensor of the silo is connected to the control device. The control device actuates the feed drive in order to refill the silo with objects in dependence on the determined fill level of the silo. Connected downstream of the silo is an overhead conveyor and downstream of the overhead conveyor a separating-into-singles system. Both the overhead conveyor and the separating-into-singles system comprise sensors and drives, all the sensors being connected to the control device and the control device controlling all the drives.