Patent ID: 9700911
Date: 2017-07-11
CPC Classifications: B05C,B29C

Claim:
1. A die lip driving structure for adjusting a gap between a first lip and a second lip by applying a pressing load or a tensile load to a flexible lip portion which forms at least one of the first lip and the second lip provided in a die body, the die lip driving structure comprising: driving mechanisms provided along a width direction of the die body: and actuators that drive the driving mechanisms, each of the driving mechanisms including: a lever supported by a rotating shaft as a fulcrum, a position of the rotating shaft with respect to the die body being fixed; and an operating rod that is supported to be displaced in an axial direction of the operating rod by the die body and is supported by a point of action of the lever, wherein: a rotational force of the lever is converted into a force in the axial direction, and the force in the axial direction becomes a pressing load or a tensile load exerted on the flexible lip portion, the lever directly applies a force to the operating rod at the point of action of the lever, the point of action of the lever is positioned closer to the die body than the rotating shaft, and the lever comprises a body of which one end portion is rotatably supported by the rotating shaft, and a connection portion provided to extend from the one end portion of the body toward the die body in a direction perpendicular to the width direction to be connected to the operating rod.