Devices and method for draw blow moulding a container and the corresponding use
AssigneeEugen Seitz AG
InventorJoachim Schmidt
Life of this patent
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Abstract
The invention relates to a device (10) for blow molding a container from a parison, comprising a blowing cylinder (11) and a blowing nozzle (12) mounted thereon, in which the parison (R) can be fixed and with a stretching rod (13), enclose by the cylinder (11) and which may be passed through the nozzle (12), wherein the nozzle (12) can be supplied with compressed air via openings (14) in the cylinder (11). The station (10) is characterized in that the stretching rod (13) is driven by a single tubular electric linear motor (15) the stator (15-1) of which is mounted on the cylinder (11) and the armature (15-2) of which is connected to the stretching rod (13).
Claims24
A device for blow molding a container from a parison, comprising:
- a blowing cylinder;
- a blowing nozzle mounted on the blowing cylinder wherein the blowing nozzle is configured to accommodate the parison;
- and
- a stretching rod enclosed by the cylinder and arranged to pass through the nozzle, wherein the nozzle is configured to be supplied with compressed air via an opening in the cylinder, wherein the stretching rod is driven by a tubular electric linear motor, wherein a stator of the tubular electric linear motor is mounted on the cylinder, wherein an armature of the tubular electric linear motor is connected to the stretching rod, and wherein at least one flow path extends to or from the blowing nozzle and through the stator of the motor whereby air or water flowing through the flow path is in direct thermal or mechanical contact with the stator.
A device for blow molding a container from a parison, comprising:
- a blowing cylinder;
- a blowing nozzle mounted on the blowing cylinder wherein the blowing nozzle is configured to accommodate a parison;
- and
- a stretching rod supported in the cylinder and configured to pass through the nozzle, wherein the nozzle is configured to be supplied with compressed air through the cylinder, wherein the stretching rod is driven by a tubular electric linear motor, wherein a stator of the motor is connected to the stretching rod via a cantilever arm, wherein an armature of the motor is arranged at a distance from the stretching rod and parallel to the stretching rod and is rigidly connected to the blowing cylinder, and wherein at least one air flow path for compressed air extends to or from the blowing nozzle and through the stator of the motor whereby air flowing through the air flow path is in direct thermal or mechanical context with the stator.
Dependencies are inferred from the claim text.