System for regulating mold temperature
AssigneeBrookfield Innovations Inc.
InventorsViktor Frul, Steven K. Ettelson
Life of this patent
Estimating the term…
Abstract
A thermally regulated injection mold in which the tooling layer is a relatively thin layer supported by a rib structure disposed on the rear surface. The temperature of the mold is controlled by impinging the rear surface of the tooling layer with a heated fluid medium or a fluid cooling medium.
Claims22
A thermally regulated mold for forming plastic articles comprising:
- an active layer having a first side and second side;
- a support structure comprising a plurality of ribs disposed on the second side of said active layer;
- a temperature regulating system comprising at least one nozzle for supplying a fluid heat transfer medium, said nozzle positioned beneath the second side of said active layer, wherein said nozzle is disposed between said ribs.
A method of thermally regulating a mold having a front surface and back surface and a plurality of nozzles disposed behind said back surface, the method comprising:
- heating said mold by impinging said back surface of said mold with a first fluid heat-transfer medium at a first temperature, wherein said first fluid heat transfer medium is dispensed from at least one of said nozzles;
- cooling said mold by impinging said back surface of said mold with a second fluid heat-transfer medium at a second temperature, wherein said second temperature is less than said first temperature, and said second fluid heat-transfer medium is dispensed from at least one of said nozzles.
A mold insert comprising:
- a support frame having a first side and a second side;
- an active layer having a first side and a second side, wherein said active layer is disposed on said first side of said support frame;
- a plurality of generally orthogonal ribs extending from said second side of said active layer, wherein said generally orthogonal ribs form a plurality of cells;
- a plurality of nozzles disposed within said cells, wherein said nozzles are directed at said second side of said active layer, and wherein said nozzles are further provided with a supply of fluid heat-transfer medium.
A method of thermally regulating an injection mold, said mold having a support frame and an active layer disposed therein, said active layer having a cavity defining surface and a rear surface, said rear surface possessing a plurality of compartments extending off of said rear surface, and a plurality of nozzles disposed within said compartments, said method comprising impinging said rear surface of said active layer with a fluid heat transfer medium, said fluid heat transfer medium being delivered from said nozzles.
Dependencies are inferred from the claim text.