Blow molding Machine for containers with conditioning step
The present invention relates to a blow molding machine for containers from cold parisons, comprising at least one station for conditioning the parisons, arranged upstream of the blowing station.
It is known in the technical sector relating to the packaging of liquid products and the like that there exists the need to manufacture containers made of plastic material suitable for this purpose.
It is known that said containers are formed in blow molding machines where a predefined quantity of material is injected into a mould and is then subjected to a first mechanical moulding deformation in order to obtain a so-called “parison”; the latter is then subjected to a thermal conditioning process and inserted into a mould for deformation by means of blowing which determines the final shape of the container.
This also in view of the hourly speed of production of the blow moulding machine which cannot fall below certain limits, where production would no longer be economic.
The technical problem which is posed, therefore, is that of providing a injection moulding machine for blowing containers from cold parisons which allows the most widely varying final forms of the blown container to be obtained.
Within the scope of this problem a further requirement is that the machine should allow high hourly production outputs and should perform the entire cycle automatically from loading of the parisons to unloading of the finished container.
These technical problems are solved according to the present invention by a blow molding machine for containers from cold parisons, comprising at least one loading station, at least one heating station, at least one station for blowing the parisons and at least one station for unloading the moulded containers, wherein at least one station for conditioning the parisons, arranged upstream of the blowing station, is provided.