PROBLEM TO BE SOLVED: To provide a lip gap regulator for a T-die capable of simply and rapidly regulating a lip gap of the T-die. SOLUTION: The lip gap regulator for the T-dies comprises a plurality of rods provided in a width direction of each of a plurality of the T-dies each having a head mounted at its one end on a back surface of a movable lip and slidably mounted at the other end at a Ti-die body, a spring operating to always axially urge or pull the rods between the rods and the T-die body, a tapered plate to be inserted and removed in a perpendicular direction to an axial direction of the rod against a force of the spring to regulate the lip gap by simultaneously axially moving the plurality of the rods and moving the movable lip and a plate moving means for inserting and removing the tapered plate with respect to the rods.
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