mold cooling device

Abstract

A cooling device for a mold that suppresses deterioration of the deoxidation effect of a deoxidation device provided in a cooling water circulation tank. The cooling device of the mold of the present invention includes: the mold (2), which has a first cooling water path (11); and a cooling water circulation tank (3), which has a deoxidation tank for deoxidizing the cooling water (W) used to cool the mold (2). device (31), and stores cooling water (W); a pressurizing device (4), which is connected to the cooling water circulation tank (3), pressure-feeds the pressurized cooling water to the first cooling water path (11) and The gas is supplied to the first cooling water path (11); the intermediate tank (5) stores the pressurized cooling water discharged from the first cooling water path (11) and is open to the atmosphere; the first cooling as the first cooling water return device The water return water path (17), the first cooling water return pump (17p) and the first cooling water return pump motor (17m) return the cooling water (W) stored in the intermediate tank (5) to the cooling water circulation tank (3 ).

Description

technical field [0001] The present invention relates to a cooling device for a mold that supplies gas to a cooling water channel. Background technique [0002] Conventionally, cooling devices such as die-casting molds are known which supply cooling water together with pressurized gas supplied from a pressurized gas supply source (pressurizing device) to the inside of the mold (cooling water path) (for example, refer to Patent Document 1). In addition, generally, the higher the oxygen concentration of the cooling water, the easier it is to generate rust in the cooling water piping, so the cooling water supplied to the cooling water channel is deoxidized by a deoxidizer (for example, refer to Patent Document 2). [0003] Patent Document 1: (Japanese) Unexamined Patent Application Publication No. 2005-046846 [0004] Patent Document 2: (Japanese) Unexamined Patent Publication No. 10-109092 [0005] However, in conventional cooling devices such as die-casting molds, the coolin...

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Problems solved by technology

[0005] However, in conventional cooling devices such as die-casting molds, the cooling water supplied to the cooling water channel increases the oxygen concentration by the amount of gas supplied from the pressurizing device, so if the cooling water returns to the deoxidizing device in this state, the deoxidizing effect will be reduced. bad question

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