Pre-rounding element on a rounding apparatus
AssigneeSoudronic AG
InventorsPeter Hug, Guy Boissin, Oliver Schulthess
Life of this patent
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Abstract
When rounding metal sheet sections for forming can bodies by means of a rounding machine, a pre-rounding element is used, whose lower part is deflectable with respect to the upper part by means of an actuating element. Thereby, the joint between the upper and the lower part is executed as a solid body joint whose section modulus in bending during the deflection is different along the joint. Thereby, a uniform impact on the metal sheet may be reached. Furthermore, the separating gap between the upper and the lower part is arranged obliquely, thus reducing the bending of the lower part.
Claims15
A pre-rounding element or a rounding element in a rounding apparatus, comprising a substantially rigid upper element part which is formed to be attached at the rounding apparatus by means of attachment members, or which is formed by an apparatus-fixed part of the rounding apparatus, a lower element part designed for acting upon the metal sheets to be rounded, which are located in the rounding apparatus, a joint arrangement by means of which the lower element part is connected to the upper element part in an articulated way, as well as at least an actuating element by means of which the lower element part is deflectable in such a way, that metal sheets to be rounded can be actuated differently by the lower element part, characterized in that the joint arrangement has a solid body joint which connects the upper element part and the lower element part in a substantially continuous way and which has areas, along its longitudinal elongation, with different section modulus's in bending for the deflection movement particularly areas of different material thickness, wherein the section modulus in bending or the material thickness respectively has its highest value in the area where the actuating element introduces a force which acts on the lower element part.
A pre-rounding element or a rounding element in a rounding apparatus, comprising a substantially rigid upper element part which is formed to be attached at the rounding apparatus by means of attachment members, or which is formed by an apparatus-fixed part of the rounding apparatus, a lower element part designed for acting upon the metal sheets to be rounded, which are located in the rounding apparatus, a joint arrangement by means of which the lower element part is connected to the upper element part in an articulated way, as well as at least an actuating element by means of which the lower element part is deflectable in such a way, that metal sheets to be rounded can be actuated differently by the lower element part, characterized in that the separating gap between the upper element part and the lower element part, which follows the joint of the joint arrangement, runs with a deviation from the horizontal direction and the end of separating gap, located opposite of the joint, is located above the joint with respect to the horizontal direction.
Dependencies are inferred from the claim text.