| 摘要 |
PURPOSE:To eliminate the development of joining failure and facilitate the positioning of the start of splicing by a constitution wherein a splicing roller consists of a taper roller, which becomes gradually narrow towards the outer peripheral part, and spring discs, the outer peripheral part of each of which tilts to said roller side. CONSTITUTION:Finger plates to draw near the opening of material consists of two spring discs 28a and 28b, both of which are fixed to both sides of a roller 30. A gap presents between the cut surface Q2 of the tip and the cut surface Q1 of the rear end of a material 9b, which is only as wound round a drum 1. After the position of said gap is set to be between the discs 28a and 28b, a splicing roller 5 is pressed against the material 9b by means of a fluid pressure cylinder 37. The tips of the discs 28a and 28b bite into the material 9b and simultaneously bend in the direction of the center of the roller, resulting in drawing near the cut surfaces Q1 and Q2 in the direction of the center. When a drum 1 is turned around under the state just mentioned above, the discs 28a and 28b rotate while successively drawing the material near and at the same time the whole material is shifted in the direction of an axis center 45, resulting in completing the butt welding of parting joints. |
