Abstract:
A stretch blow molding machine may include a blow molding unit, having at least a first and a second mold carrier for receiving at least one mold part, which can be moved relative to one another, connected to one another to form a first working space for receiving the containers, and detached from one another to release the containers. A second working space may be formed between at least one mold part and at least the first mold carrier. A fluid communication system can feed a working fluid to the first and second spaces. At least one valve device for intermittent complete disconnection of fluid communication between at least one of the working spaces and the fluid system is arranged such that pressure of the working fluid within the fluid system is independent of changes in the state of the second space when the fluid communication is disconnected.
Abstract:
An apparatus for tempering plastics material pre-forms with a tempering mould for tempering an outer wall of the plastics material pre-forms, wherein the tempering mould has at least one first mould part which is movable and wherein the first mould part contacts a first wall portion of the plastics material pre-form at least for a time, in order to temper this wall portion. The apparatus has a supply unit in order to supply the plastics material pre-forms to the tempering mould, and this supply unit has a holding device for holding the plastics material pre-forms as well as a movement device which, in order to supply the plastics material pre-forms into the tempering mould, produces a relative movement between the plastics material pre-form and at least one portion of at least one mould part in a longitudinal direction (L) of the plastics material pre-form.
Abstract:
A device for forming plastic preforms into plastic containers with a mobile carrier on which is arranged a plurality of blowing stations, each comprising blow mould carrier parts to hold blow mould parts, wherein at least one of these blow mould carrier parts is mobile in relation to the other blow mould carrier part, and wherein the blowing stations each comprise a carrier element to carry at least one blow mould carrier part. The device includes a clean room within which the plastic preforms can be expanded into plastic containers. The blow mould carrier parts together with the carrier element form a unit which can be demounted as a whole from the carrier.
Abstract:
A device optimized with regard to thermal management and an optimized method for the manufacture of containers are described in which the thermal energy of a plurality of consumers/generators of thermal energy is interchanged through a thermal energy combination. The device and the method are particularly suitable for stretch blow-molding machines and compressors.
Abstract:
An apparatus for shaping plastics material pre-forms into containers has a plurality of blow moulding stations arranged on a movable carrier blow moulding stations have two part blow moulds with a cavity inside in which the plastics material pre-forms are expanded. The blow moulding stations have stressing devices which act upon the plastics material pre-forms to expand them with a flowable medium. At least one first bearing device is provided for movable mounting of the blow mould carriers with respect to each other and at least one second bearing device is provided for movable mounting of the first locking element with respect to the second locking element. At least one of these bearing devices is a slide bearing without lubricant or a bearing which is injection moulded at least in part from a plastics material between bearing parts movable relative to each other.
Abstract:
A method and a device for recycling compressed gas where the compressed gas used in a compressed gas consumer, particularly a container blow-molding machine, is fed back into a compressed gas generator. In order to increase the recycling volume, the compressed gas from the compressed gas consumer is collected separately and fed back to at least a first and a second pressure range of the pressure generator separately according to pressure stages.
Abstract:
A device for transforming parisons into containers with a plurality of transforming stations which are disposed on a movable carrier, wherein the transforming stations each have blow molds, within which the parisons can be transformed into containers by a supply of a flowable medium, and blow mold supports for holding these blow molds, wherein the blow mold supports have at least two blow mold support parts which are movable relative to one another for opening and closing the blow molds, with a clean room which is demarcated with respect to the surroundings by means of at least one wall and which at least partially surrounds the individual transforming stations, so that the transforming stations are movable within this clean room, and with at least one supply unit in order to supply flowable sterilising medium to at least one region of the transforming stations which are movable within the clean room.
Abstract:
A method for the temperature control and/or regulation of a heating device (10) for preforms (46) made from a thermoplastic material, the method being intended for controlling the temperature of the preforms (46) prior to a subsequent blow molding or stretch blow molding process. The temperature control process includes at least two distinct, consecutive heating stages (12, 14), where a near uniform base temperature of the entire preform (46) is achieved in the first heating stage (12). The base temperature approximately corresponds to a maximum heating temperature (T2) for maintaining the dimensional stability of the thread section at the preform's (46) open-topped neck section. An unevenly distributed softening temperature (T3) according to a predefineable thermal profile is achieved in the second heating stage (14), with the softening temperature (T3) being required for blow molding or stretch blow molding at least the preform's (46) body section located below the thread section and/or a collar area located therebelow. The invention furthermore includes a heating device (10) for performing the method.
Abstract:
A method for the temperature control and/or regulation of a heating device (10) for preforms (46) made from a thermoplastic material, the method being intended for controlling the temperature of the preforms (46) prior to a subsequent blow molding or stretch blow molding process. The temperature control process includes at least two distinct, consecutive heating stages (12, 14). At least one temperature reading of the preforms after the first heating stage is taken, and deviations of the at least one temperature reading from a specified set point temperature is determined, a first temperature reading of the at least one temperature reading being taken after the first heating stage. Radiators in the second heating stage are regulated or adjusted as a function of the first temperature reading and temperature deviations of the preforms from the specified set point temperature are compensated for prior to exit of the preforms from the heating device. The invention further includes a heating device for performing the method.
Abstract:
A method for controlling and regulating a unit for producing hollow bodies, including a compressor, a blowing machine and a control unit, which controls both the compressor and the blowing machine. A system also provided for returning blast air from the finished blown container to the compressor. Also, a device for producing hollow bodies, with a compressor, a blowing machine and a control system, which for the exchange of data is connected to the blowing machine and to the compressor.