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US 4,871,492 AGranted
Method for aligning blow mandrel
AssigneeKrauss-Maffei Aktiengesellschaft
InventorMarkus Spoetzl
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Abstract
On the sizing unit of a blow molding machine, one or more blow mandrels are mounted in blow mandrel holders and are centered in sizing plate openings. To obtain faster and more accurate centering, the blow mandrel holder has independently adjustable sleeve and flange parts. The sleeve adjusts axial location while the flange fixes radial location. Conical mandrel tips and sizing plate openings facilitate rapid alignment as the blow mandrels are lowered.
Claims4
A process for operating a blow molding sizing unit, wherein said sizing unit comprises:
- at least one blow mandrel;
- and
- at least one blow mandrel holder comprising:
- a sleeve connected to said mandrel by means for adjustably securing said mandrel in an axial direction;
- a flange connected to said mandrel by means for adjustably securing said mandrel in a radial direction;
- and
- a blow mandrel carrier attached to said sizing unit and detachably connected to said at least one blow mandrel holder
- wherein said process comprises:
- lowering said at least one blow mandrel connected to a blow mandrel holder having radial and axial motion onto a sizing plate having at least one opening wherein radial positioning is automatically accomplished upon lowering said at least one blow mandrel by tapered geometry of said at least one blow mandrel aligning with the sizing plate opening;
- and
- tightening said sleeve, said flange, or both in either order for restraining axial and/or radial motion of said at least one blow mandrel.
8 more elements
Dependencies are inferred from the claim text.