PROBLEM TO BE SOLVED: To provide the extruding device for variable section capable of correctly measuring the displacement of a movable die and stably performing the extrusion of the member of variable section with excellent precision. ;SOLUTION: The extruding device is provided with a container 2 in which a stock 1 to be formed is stored, a press 3 which is arranged on one end side of the container and presses the stock 1 in the container toward the other end side, a die assembly 5 which is arranged on the other end side of the container and forms the stock 1 into the product shape through an extrusion hole 4, and a driving means 8 to change the shape of the extrusion hole. The die assembly is provided with a fixed die 11 in which a fixed die hole is made, and a movable die 12 which is movably provided on the fixed die and in which a movable die hole is made, a tip of a driving part of the driving means 8 is connected to the movable die 12, and a displacement measuring means 40 in which the tip part is engaged with the movable die 12 and its movement is measured, is provided.;COPYRIGHT: (C)1998,JPO
展开▼
