| 摘要 |
PURPOSE:To obtain an outer flux filled body having a uniform rectangular section by preliminarily creasing the intended bending parts of the wings of a U-shaped channel hoop and folding one wing prior to feeding of the outer flux. CONSTITUTION:A creasing roll device 21 is disposed on the upper stream of an outer flux supplying machine of a roll molding machine to provide creases 15, 16 to the wings 13, 14 of the hoop 10. After the outer flux 11 is supplied into the hoop 10, the left side wing 13 is precedently folded by a forming roll 24 on the down stream side, then the wing 13 is bent horizontal by a roll 25. The right side wing 14 is thereafter folded by a roll 26 and is bent by a roll 27, by which the outer flux filled body 30 is formed. Since the wings 13, 14 are preliminarily creased 15, 16, the outer flux filled body 30 is surely formed to the required rectangular section.
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