Ultrasonically Vibrated Die Rings
AssigneeMagnaparva Packaging Limited
InventorMiles ASHCROFT
Life of this patent
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Abstract
An ultrasonically vibrated die comprises a generally cylindrical die ring supported by a coaxial resonant mounting tube. The die ring is vibrated in a radial bending mode of vibration, in which an end surface of the die ring oscillates between a concave and a convex state. The mounting tube joins the end surface of the die ring at a radius R where the amplitude of the oscillation of the end surface is at a minimum, in order to reduce transmission of the vibration into the mounting tube.
Claims5
A die, comprising:
- a generally cylindrical die ring comprising an end surface and having a radial bending mode of vibration in which the end surface oscillates between a concave and a convex state;
- and
- a mounting tube coaxial with the die ring and extending from the end surface of the die ring;
- characterized in that the mounting tube joins the end surface of the die ring at a radius where the amplitude of the oscillation of the end surface is at a minimum.
A method of operating a die that comprises a generally cylindrical die ring having an end surface, and a mounting tube coaxial with the die ring and extending from the end surface,
- the method comprising vibrating the die ring in a radial bending mode, in which the end surface of the die ring oscillates between a concave and a convex state, characterized in that the minimum amplitude of the oscillation of the end surface occurs at a radius where the mounting tube joins the end surface.
Dependencies are inferred from the claim text.