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AssigneeKistler Instrumente AG
InventorsPaul Engeler, Hans Ulrich Baumgartner, Ulrich Dubendorfer, Hans Conrad Sonderegger
Estimating the term…
A transducer for measuring the pressure characteristics of elastic material to be injection moulded includes a transducing element contained within a sleeve member mounted in an injection moulding device. An end of the sleeve member adjacent the material whose pressure characteristics are to be measured contains a pressure transmitting element for transmitting the pressure characteristics of the injection moulded material to the transducing element. Support and guiding structure is provided for supporting the transducing and pressure transmitting elements in the sleeve member, and for maintaining a uniform spacing of the pressure transmitting element from the internal wall of the sleeve member.
A transducer for measuring pressure characteristics of elastic material in an injection moulding device, said transducer comprising:
A method for calibrating a transducer comprising:
A transducer for measuring pressure behavior during injection of plastic masses through injection molding tools, consisting of an element with longitudinal stop, which can be fitted straight into standard holes in said injection molding tools, characterized by a force-sensitive element arranged between a radial and axial guiding element, on one hand, and a pressure piston, on the other hand, so that a cylindrical protective sleeve matched to the guiding element surrounds the pressure piston without touching it, and separated by a concentric annular gap which acts as a sealing gap against the plastic masses.
Dependencies are inferred from the claim text.