Assembly of a cooling unit and a mold

Abstract

The invention relates to an assembly of a device for cooling a mold, the cooling box 2, and the mold 1. Such a mold 1 for forming glass, such as glass parts for a display tube (for example, screen and cone) is cooled by causing a cooling medium such as water or air to flow around this mold 1. The cooling medium is distributed along different parts of the mold 1 by means of the cooling box 2. The cooling box 2 according to the invention is adapted in such a way that the tangential component of the flow of the cooling medium is substantially equally directed throughout the channel 3. A method of achieving this is a tangentially oriented inflow of the cooling medium into the channel, instead of the conventional radial inflow. This tangential inflow causes a rotating flow in the channel 3, referred to as vortex or whirl, so that differences in inlet conditions are averaged and a uniform pressure distribution in the channel 3 is obtained. A more homogeneous cooling of the mold 1 can be obtained in a simple manner with the assembly according to the invention.

Dependencies are inferred from the claim text.