FLOW-PATH CONTROLLING APPARATUS FOR COOLANT CURTAIN

摘要

PURPOSE: A device for controlling a coolant curtain flow path is provided to prevent the flow path from blocking due to the foreign substance by opening the flow path only for operating and to form a uniform coolant curtain according to the radius of a main shaft to rotate. CONSTITUTION: A device for controlling a coolant curtain flow path comprises a cap (10) for fixing a main shaft, a coolant cap (40), a coolant chamber, a flow path generating module (30). The flow path generating module is mounted between the external diameter of the cap and the internal diameter of the coolant cap to seal the coolant chamber. The flow path generating module is equipped to move between the cap and the coolant cap for forming a flow path in which the coolant is discharged when the pressure of the coolant flowing through a coolant flowing unit (41) is higher than the predetermined pressure.