Method and device for cooling molds
AssigneeWavin B.V.
InventorArnoldus W. Leloux
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Abstract
A method and device for cooling molds circulating in a horizontal plane, in which siphon action is used to pass cooling liquid from a top gutter through the molds. In this way the whole cooling system is becoming constructively simplified, such that production speeds can be increased, with the consequent greater length of the cooling system, but without its becoming unduly complicated. This effect is realized irrespective of the nature of the machine or the number of molds. Method and device are especially advantageous when applied with the manufacture of plastics tube, more particularly yet with the manufacture of plastic corrugated tube.
Claims4
The method of cooling plastic molds having vertical intake and discharge fluid tubes in communication with a coolant cavity in the mold, arranging the molds for horizontal travel in a closed loop, positioning a static coolant reservoir above the molds and placing the fluid intake tube of each mold in communication with the coolant in the static reservoir, positioning a static coolant collector below the molds and in communication with the mold fluid discharge tubes, and siphoning coolant from the static coolant reservoir through the intake and discharge tubes passing coolant through the molds and discharging it in the static coolant collector.
Dependencies are inferred from the claim text.