| 摘要 |
PURPOSE:To execute automatically multiple linear heatings at one time and to improve working efficiency by providing plural heaters which applies linear heating to a frame moving relatively with a material to be worked and maintaining the specified spacing between the heater and the material to be heated. CONSTITUTION:A traversing carriage 16 is attached to a traversing rail 15 of a gate type frame 13 moved freely by means of a traveling motor on a pair of rails 11 parallel with each other on a floor surface 10. The carriage 16 is moved by the motoro. A column 22 is fixed to the carriage 16 and a lifting shaft 21 for said column is freely vertically movably attached thereto. A slide bar 26 is attached by means of a bracket 27 to the shaft 21. Plural torches 32 are attached via an air cylinder 29 and a sliding bar 28 to the bar 26. A steel plate 40 is imposed on the floor surface 10 and is positioned by turning the bar 26. The nozzles 32a of the torches 32 are positioned higher than the prescribed height from the ball 30 by a handle 33 and the bar 28 is lowered by the air cylinder 29 to press the ball 30 to the plate 40. The heating is thus executed successively. |
