Mold-Cooling System and Mold-Cooling Method

Abstract

A mold-cooling system for cooling a heated mold by supplying cooling medium from a cooling medium supply source to a medium flow path provided for a mold. The mold-cooling system is characterized in that a discharge side path connected to an outlet side of the medium flow path of the mold is communicated with a heat exchanger condensing the cooling medium gasified and discharged from the medium flow path.

1 . A mold-cooling system for cooling a heated mold by supplying cooling medium from a cooling medium supply source to a medium flow path provided for a mold, wherein a discharge side path connected to an outlet side of the medium flow path of the mold is communicated with a heat exchanger condensing cooling medium gasified and discharged from the medium flow path. 
     
     
         2 . The mold-cooling system according to  claim 1 , wherein a path supplying steam from a steam source or air from an air source is connected to a supply side path connected to an inlet side of the medium flow path of the mold from the cooling medium supply source, and wherein the mold-cooling system comprises a control portion controlling supply of steam or air and supply of cooling medium, and supplying cooling medium to the medium flow path of the mold after supplying steam or air to the medium flow path of the mold. 
     
     
         3 . The mold-cooling system according to  claim 1 , wherein the path supplying steam from the steam source or air from the air source is connected to the supply side path connected to the inlet side of the medium flow path of the mold from the cooling medium supply source, and wherein the mold-cooling system comprises the control portion controlling the supply of steam or air and the supply of cooling medium, and supplying steam or air to the medium flow path of the mold after supplying cooling medium to the medium flow path of the mold. 
     
     
         4 . The mold-cooling system according to  claim 1 , wherein the discharge side path on a downstream side of the heat exchanger is provided with a backflow prevention portion preventing backflow. 
     
     
         5 . The mold-cooling method for cooling a heated mold by supplying cooling medium to a medium flow path provided for a mold, wherein a discharge side path connected to an outlet side of the medium flow path of the mold is communicated with a heat exchanger, and cooling medium gasified and discharged from the medium flow path is condensed in the heat exchanger. 
     
     
         6 . The mold-cooling method according to  claim 5 , wherein cooling medium is supplied to the medium flow path of the mold after executing a precooling step in which steam or air is supplied to the medium flow path of the mold. 
     
     
         7 . The mold-cooling method according to  claim 5 , wherein a second cooling step in which steam or air is supplied to the medium flow path of the mold is performed after executing a first cooling step in which cooling medium is supplied to the medium flow path of the mold. 
     
     
         8 . The mold-cooling system according to  claim 2 , wherein the control portion controls the supply of steam or air and the supply of cooling medium, and supplies steam or air to the medium flow path of the mold after supplying cooling medium to the medium flow path of the mold. 
     
     
         9 . The mold-cooling system according to  claim 2 , wherein the discharge side path on a downstream side of the heat exchanger is provided with a backflow prevention portion preventing backflow. 
     
     
         10 . The mold-cooling system according to  claim 3 , wherein the discharge side path on a downstream side of the heat exchanger is provided with a backflow prevention portion preventing backflow. 
     
     
         11 . The mold-cooling system according to  claim 8 , wherein the discharge side path on a downstream side of the heat exchanger is provided with a backflow prevention portion preventing backflow. 
     
     
         12 . The mold-cooling method according to  claim 6 , wherein a second cooling step in which steam or air is supplied to the medium flow path of the mold is performed after executing a first cooling step in which cooling medium is supplied to the medium flow path of the mold.