| 摘要 |
<p>The present invention is to provide a device for heating and cooling a mold, which supplies high pressure air to the mold between a process of supplying high pressure oil and low pressure oil respectively and a process of supplying high pressure oil and low pressure oil to the mold, discharges oil left inside the mold, and improves cooling efficiency. To this end, the device for heating and cooling the mold heats and cools the mold using oil as a refrigerant, and includes: a mold supplying duct supplying oil to the mold, where a first multiway valve is installed on an inlet; and a mold recovering duct in which oil discharged from the mold is recovered and a second multiway valve is installed on an outlet.</p> |
