| 摘要 |
PURPOSE:To equalize approximately the thermal displacement caused on the upper and lower part frames by providing the circulating pump of a refrigerant in the cooling space of each communicating frame in the titled press having upper and lower part frames. CONSTITUTION:A cooling chamber 15 is provided in the form of communicating each frame on the inner part of upper and lower part frames 4, 3 and the refrigerant 16 of eater, oil, etc. is filled up in this inner part. A circulating pump 17 is connected via a pipe 19 to the position corresponding to the frame 3 of the chamber 15 and the cooling device 20 connected via the pipe 19 to the position corresponding to the frame 4 of the chamber 15 is connected thereto. A blanking is performed with driving the driving motor, clutch 12 and brake 13 but in this case a large quantity of heat is generated. Now this heat is absorbed by the refrigerant 16 inside the chamber 15 and the over-heating of the frame 4 is prevented. With driving the pump 17 as well the refrigerant 16 is sucked from he frame 3 side, cooled by feeding to the device 20 and fed to the chamber 15 of the frame 4 side. The frames 3, 4 are thus temp. up nearly equally. |
