B29C49/36

BLOW-MOLDING MACHINE WITH PRESSURE CONTROL DURING THE BLOW-MOLDING PROCESS

A device for forming plastic parisons into plastic containers includes at least one forming station arranged on a conveying device and configured to form plastic parisons into plastic containers by applying a gaseous medium, the forming station includes an application device configured to apply the flowable medium to the plastic parisons, and includes a pressure supply device and/or is in fluidic connection with a pressure supply device configured to provide the flowable medium at a prespecified pressure, wherein pressure provided by the pressure supply device is greater than pressure required and/or used for the application to the plastic parisons, wherein the device includes at least one valve device which controls application to the plastic parisons, which valve device is configured to interrupt the supply of air into the container when the pressure of the flowable medium within the container has reached a prespecified pressure level.

Method and apparatus for blow moulding of containers with a movable base part
11554527 · 2023-01-17 · ·

A method for forming plastic parisons to plastic bottles includes the following steps: introducing in a blow mold a plastic parison to be expanded, the blow mold having at least two lateral parts and a base part that is mobile in relation to said lateral parts in a longitudinal direction of the plastic parison; inserting a rod-shaped element in the interior of the plastic parison through a mouth of the plastic parison; applying a first pressure the plastic parison, applying a second pressure to the plastic parison, the second pressure deviating from the first pressure and being higher than the first pressure, applying a third pressure to the plastic parison, the third pressure deviating from the second pressure and being higher than the second pressure. The base part is advanced in the longitudinal direction of the plastic parison while at least temporarily applying the second pressure to the plastic parison.

Method and apparatus for blow moulding of containers with a movable base part
11554527 · 2023-01-17 · ·

A method for forming plastic parisons to plastic bottles includes the following steps: introducing in a blow mold a plastic parison to be expanded, the blow mold having at least two lateral parts and a base part that is mobile in relation to said lateral parts in a longitudinal direction of the plastic parison; inserting a rod-shaped element in the interior of the plastic parison through a mouth of the plastic parison; applying a first pressure the plastic parison, applying a second pressure to the plastic parison, the second pressure deviating from the first pressure and being higher than the first pressure, applying a third pressure to the plastic parison, the third pressure deviating from the second pressure and being higher than the second pressure. The base part is advanced in the longitudinal direction of the plastic parison while at least temporarily applying the second pressure to the plastic parison.

Method for the production of filled containers from thermally conditioned preforms
11707877 · 2023-07-25 · ·

A method for producing containers filled with liquid content from preforms made of thermoplastic material. The liquid content is fed as a pressure medium into thermally conditioned preforms during a forming and filling phase in a mold of one of a plurality of forming stations arranged circumferentially spaced apart on a common, continuously rotationally driven working wheel. A compensating device compensates for thermal consequences of centrifugal force acting on the liquid content fed into the preform during the forming and filling phase. The compensating device imparts a temperature profile to the preform in a circumferential direction, which is not point-symmetrical in relation to a longitudinal axis of the preform to produce a thermally differentiated partial circumferential region. The preform is inserted into the mold such that the thermally differentiated partial circumferential region faces in a radial direction of the working wheel.

Method for the production of filled containers from thermally conditioned preforms
11707877 · 2023-07-25 · ·

A method for producing containers filled with liquid content from preforms made of thermoplastic material. The liquid content is fed as a pressure medium into thermally conditioned preforms during a forming and filling phase in a mold of one of a plurality of forming stations arranged circumferentially spaced apart on a common, continuously rotationally driven working wheel. A compensating device compensates for thermal consequences of centrifugal force acting on the liquid content fed into the preform during the forming and filling phase. The compensating device imparts a temperature profile to the preform in a circumferential direction, which is not point-symmetrical in relation to a longitudinal axis of the preform to produce a thermally differentiated partial circumferential region. The preform is inserted into the mold such that the thermally differentiated partial circumferential region faces in a radial direction of the working wheel.

DEVICE AND METHOD FOR TREATING HOLLOW BODIES
20230024197 · 2023-01-26 ·

A device for treating hollow bodies, comprising at least a nozzle and a circuit for setting a pressurized airflow in circulation, having a valve and a first pressure sensor measuring a first pressure; a control distributor of said valve; a line connecting said distributor to said valve; a control unit with a time measurement component; wherein said device comprises a second pressure sensor situated along said line, measuring a second pressure, and wherein said control unit comprises means that are able to determine a differential between the measurement of the first pressure and the measurement of the second pressure as a function of time. The invention also relates to a corresponding treatment method.

METHOD FOR ANGULAR ORIENTATION OF HOLLOW BODIES IN A PLANT FOR MANUFACTURING CONTAINERS
20230023175 · 2023-01-26 ·

A method for regulation of the angular position of hollow bodies in an installation for production of containers. The hollow bodies are moved by individual support members each of which is equipped with means for causing the hollow body to turn about its axis. The method includes a first step of measuring an angular offset of at least one particular hollow body relative to a reference angular position in a measurement zone. The method also includes a second step of compensating of the angular position of the subsequent hollow bodies in a compensation zone upstream of said measurement zone as a function of the angular offset measured for the at least one particular hollow body.

MACHINE BLOCK FOR PRODUCING AND FILLING BOTTLES AND METHOD FOR CONTROLLING THE MACHINE BLOCK
20230226742 · 2023-07-20 ·

A method for controlling a machine block comprising a blow-moulding machine for producing bottles and comprising a filler for filling a liquid product into bottles, and a corresponding machine block. Accordingly, the blow-moulding machine comprises an electronic blow-moulding machine controller and an even number of circulating blow-moulding stations, and the filler comprises an electronic filler controller and an even number of circulating filling stations. Since the blow-moulding machine controller specifies a division selection, and the filler controller automatically selects, on the basis of the division selection, one of several filler operating modes all of the machine controllers in the region of the machine block can be instructed in a superordinate manner by the blow-moulding machine controller to automatically adjust the respective operating mode.

MACHINE BLOCK FOR PRODUCING AND FILLING BOTTLES AND METHOD FOR CONTROLLING THE MACHINE BLOCK
20230226742 · 2023-07-20 ·

A method for controlling a machine block comprising a blow-moulding machine for producing bottles and comprising a filler for filling a liquid product into bottles, and a corresponding machine block. Accordingly, the blow-moulding machine comprises an electronic blow-moulding machine controller and an even number of circulating blow-moulding stations, and the filler comprises an electronic filler controller and an even number of circulating filling stations. Since the blow-moulding machine controller specifies a division selection, and the filler controller automatically selects, on the basis of the division selection, one of several filler operating modes all of the machine controllers in the region of the machine block can be instructed in a superordinate manner by the blow-moulding machine controller to automatically adjust the respective operating mode.

Process for treating container preforms with non-contacting plasma treatment
11701443 · 2023-07-18 · ·

Disclosed is a process for treating at least one hollow body made of thermoplastic material, such as a preform or a cap, the treatment process successively including at least the following steps: a first step, consisting in treating at least the inside of the hollow body using hydrogen peroxide; a second step, consisting in heating the hollow body; a third step, consisting in treating the hollow body with plasma in order to reduce the concentration of hydrogen peroxide residues. Also disclosed is a plant for manufacturing containers in which the process is carried out in particular by way of a unit for the plasma treatment of the preforms.