To provide an automatic supply technology of a square pipe material.
As shown in Figure (b), a core metal 31 is assumed to be inclined. A block member 34 is inclined by corresponding to the inclination of the core metal 31 as shown in (a). As a measure, as shown in (c), a cylinder 37 is operated to advance a piston rod 37a. A flat surface 34a is pushed by the piston rod 37a through an elastic body 39 and a disk 38, the flat surface 34a becomes level. As shown in (d), the core metal 31 becomes level. A core metal posture correction mechanism is included which performs posture correction so as to make the core metal coincide with a predetermined posture. Since the posture of the square pipe material on a material dolly and the core metal coincide, it is possible to cover the square pipe material on the core metal by only moving the square pipe member to a pipe bender from the material dolly. The automatic supply of the square pipe material becomes possible.
YOKOO SHOJI
| JPS62134120A | 1987-06-17 | |||
| JPH04258317A | 1992-09-14 | |||
| JPS61183327U | 1986-11-15 | |||
| JPS62244530A | 1987-10-24 |
Norimasa Shimoda
Tadanori Masanori
Toshitake Nozaki