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AssigneeEtude et Realization de Chaines Automatiques ERCA
InventorsRaymond C. Philippon, Jean-Claude H. Hautemont
Estimating the term…
Apparatus for the deposition and preshaping of a band section in a shaping mould. It comprises rotatable applicator members which are on the one hand positioned below the upper face of the base plate in such a way that they are located in the vicinity of and face the displacement path of at least portions of the side wall of the shaping cavity of the mould, said portions being called junction portions and have a smaller radius of curvature than that of the other portions of the side walls and are on the other hand operated in such a way that they can draw the band section against said junction portions during the upward movement of the mould or moulding units, as well as maintaining means which are able to maintain at least approximately the band section in the position imposed on it within the shaping cavity by applicator members, wherein the internal shoulder of the shaping cavity is interrupted by vertical passage slots at the location of the junction portions so that passages are left for the applicator members, wherein the base plate has lateral covering protruberances which are able to penetrate into said slots with a certain lateral clearance and which cover the major portion of the applicator means, and wherein the transfer member and its control rod are hollow and positioned concentrically to the supporting rod. A particular application is to the thermal shaping station of a packing machine.
An apparatus for the deposition and preshaping of a band section in a shaping mould having at least one shaping cavity defined by the inner side walls of the mould, said mould being vertically movable between an upper position and a lower position, said apparatus being of the type having a transfer plunger equipped with a control rod and mounted in sliding manner in a cylindrical cavity of a band section prewinding unit, said prewinding cavity being open at least towards the moulding unit and adapted to receive a coiled band section and located below and in the immediate vicinity of the lower position of the moulding unit and aligned with the said shaping cavity which, at its lower end has an inner shoulder extending perpendicularly to the axis and towards the inside of the shaping cavity, a base plate for the mould comprising a base plate which is supported on the machine frame via a supporting rod extending generally centrally of said shaping cavity and whose dimensions are such that the side walls thereof can engage without a significant lateral clearance in the base opening of said shaping cavity defined by the said internal shoulder, rotatable applicator members on said base plate positioned below the upper face of the base plate in such a way that they are located in the vicinity of and face the displacement path of at least portions of the side wall of the shaping cavity of the mould, said portions having a smaller radius of curvature than that of the other portions of the side walls, said applicator members serving to draw the band section against said junction portions during the upward movement of the mould relative to said base plate, and maintaining means to maintain at least approximately the band section in the position imposed on it within the shaping cavity by said applicator members, the internal shoulder of the shaping cavity being interrupted by vertical passage slots at the location of the junction portions so that passages are provided for the applicator members, the base plate having lateral covering protuberances which are able to penetrate into said slots with a certain lateral clearance and which cover the major portion of the applicator means, said transfer member and its control rod being hollow and positioned concentrically to the supporting rod.
Dependencies are inferred from the claim text.