Cooling arrangement for centering device and spline shaft

Details Cooling arrangement for centering device and spline shaft Cooling arrangement for centering device and spline shaft

B - Operations, Transporting

29

C

B29C 45/73 (2006.01) B29C 45/66 (2006.01)

Patent

CA 2547475

A cooling arrangement is provided for a mold centering device for multi-level stack molds having a spline shaft with a central region journaled to an intermediate mold level with involute spline pathways extending in oppositely twisting helices from the central region toward opposite ends thereof and respective spline nuts secured to adjacent mold levels threadedly engaging the spline pathways to run therealong for converting linear motion into rotational motion and vice versa thereby controlling relative opening and closing rates of the adjacent mold levels relative to the intermediate mold levels therebetween. The cooling arrangement has an internal fluid passageway extending along the spline shaft into a region of the spline shaft received in the spline nuts. A fluid inlet communicates with and supplies fluid to the fluid passageway. A fluid outlet communicates with and discharges fluid from the fluid passageway. Fluid guide means are provided for causing a fluid to flow along the fluid passageway to cool the region received in the spline nuts as the fluid passes from the inlet through the outlet.

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