A method for producing a container from a blank, inside a forming unit having a mold and a movable insert controlled by a variable-flow solenoid valve, a control unit linked to the solenoid valve. The method comprises developing a boxing curve characterizing the successive positions of the insert; determining, based on a reference blowing curve, points of inflection; measuring, on the boxing curve, distances actually travelled by the insert between points in time, some of which correspond to these points of inflection; and comparing the values of the measured distances with nominal values. If there is a difference between a measured value and a nominal value, controlling, by the control unit, a modification in the flow rate setpoint of the solenoid valve for the next production cycle.

A method for forming plastic preforms into containers, wherein a transport device transports the preforms along a transport path. The transport device has a rotatable transport carrier where forming stations are arranged for forming the preforms into containers. The forming stations each have devices which apply a flowable medium to the preforms, and the apparatus has three pressure reservoirs which store the flowable and gaseous medium to expand the preforms. The preforms are applied to a first operating mode with a first pressure level stored in the first pressure reservoir, and at least one second and one third pressure levels stored in the second and third pressure reservoirs. The second pressure level is higher than the first, and the third pressure level is higher than the second. The apparatus is operated in a second operating mode, which differs from the first mode by pressure level prevailing in the second pressure reservoir.

An apparatus for forming plastic preforms into plastic containers having a transport device which transports the preforms to be formed along a predetermined transport path, wherein the transport device has a rotatable transport carrier on which a plurality of forming stations are arranged which each have a blow-molding device within which the preforms can be formed into the containers. The forming stations each have a pressurizing device which pressurizes the preforms with a flowable medium, i.e., compressed air, wherein the pressurizing device subjects the preforms to a preblowing pressure, at least one and preferably two intermediate blowing pressures, and a final blowing pressure. The apparatus has a detection device which is configured for detecting at least one value characteristic of the plastic container, wherein depending on this value characteristic of the container, the duration of the pressure rise time of at least one intermediate blowing pressure can be regulated.

A method for manufacturing a resin container includes: performing injection molding on a resin preform; adjusting a temperature of the preform manufactured in the performing injection molding; and performing blow molding on the temperature-adjusted preform to manufacture the resin container. In the performing injection molding, injection molds are opened after completion of filling and pressure holding of a resin material, and the preform is taken out without being cooled in the injection molds after the completion of filling and pressure holding. In addition, in the adjusting the temperature, a refrigerant is introduced into the preform to cool the preform.

There is provided a resin container manufacturing apparatus configured to stretch a preform disposed in a stretch blow molding mold by a stretching rod and stretch the preform by introducing blow air into the preform so as to form a resin container. The resin container manufacturing apparatus includes detection means for detecting an actual position of the stretching rod inserted into the preform, and supply control means for controlling a supply state of the blow air based on a detection result of the detection means.

In a blow-molding apparatus, a cooling device and a heating device are each driven by being supplied with electricity of a predetermined voltage from a supply power source. The blow-molding apparatus comprises: a monitoring device configured to constantly monitor fluctuation of the predetermined voltage; and an output automatic control mechanism configured to, in a case where the predetermined voltage monitored by the monitoring device fluctuates beyond a normal range, automatically fluctuate an output of at least one of the heating device and the cooling device to keep the output in a certain range, thereby adjusting at least one of the preform temperature and the ambient temperature to fall within a normal temperature range.

A synchronization system for a container-processing plant, including a container-forming machine configured to form a container, the container-forming machine having a first rotating wheel for rotating the container about a first rotation axis; a container-filling machine operatively coupled to the container-forming machine and configured to fill the container, the container-filling machine having a second rotating wheel for rotating the container about a second rotation axis; and at least one electric motor configured to cause the first rotating wheel and the second rotating wheel to rotate, the synchronization system comprising: a position sensor provided in the container-forming machine and configured to detect a rotating position of the first rotating wheel and to generate a position detection signal; at least one control unit configured to: receive information associated with the position detection signal; synchronize the rotation of the second rotating wheel to the rotation of the first rotating wheel based on the information associated with the position detection signal; and synchronize the rotation of the container-forming machine and container-filling machine from a zero speed up to a full operating speed of the container forming machine at which processing operations are designed to be performed.

The invention relates to a method for inspecting a container (2) made of plastic material obtained by molding, the method comprising: a step of capturing a thermal image of the container (2) on leaving the mold (31); a step of characterization of the container (2), in which a rule for acceptance or rejection of the quality of the container (2) is applied, as a function of the thermal image of the container (2) on leaving the mold (31),
wherein, prior to the characterization step, the method comprises a step of identification, on the thermal image, of at least critical zone corresponding to a structural part of the container (2),
and wherein the acceptance rule is parameterized to consider a container (2) as acceptable if, for each identified critical zone, the temperature of the container is lower than a predetermined threshold temperature.

There is provided a resin container manufacturing apparatus configured to stretch a preform disposed in a stretch blow molding mold by a stretching rod and stretch the preform by introducing blow air into the preform so as to form a resin container. The resin container manufacturing apparatus includes detection means for detecting an actual position of the stretching rod inserted into the preform, and supply control means for controlling a supply state of the blow air based on a detection result of the detection means.

A synchronization system for a container-processing plant, including a container-forming machine configured to form a container, the container-forming machine having a first rotating wheel for rotating the container about a first rotation axis; a container-filling machine operatively coupled to the container-forming machine and configured to fill the container, the container-filling machine having a second rotating wheel for rotating the container about a second rotation axis; and at least one electric motor configured to cause the first rotating wheel and the second rotating wheel to rotate, the synchronization system comprising: a position sensor provided in the container-forming machine and configured to detect a rotating position of the first rotating wheel and to generate a position detection signal; at least one control unit configured to: receive information associated with the position detection signal; synchronize the rotation of the second rotating wheel to the rotation of the first rotating wheel based on the information associated with the position detection signal; and synchronize the rotation of the container-forming machine and container-filling machine from a zero speed up to a full operating speed of the container forming machine at which processing operations are designed to be performed.