| 摘要 |
PURPOSE:To obtain a good adhesive effect with a small high frequency output, by passing a piling part of two sheet materials through the circumferential surfaces of a pair of rollers and by supplying a high-frequency current from the circumferential surface of a roller element through the piling part and the face roller to the circumferential surface of another roller element through the piling part to heat and fuse each sheet material. CONSTITUTION:Edges of two sheet material 44, 45 are piled each other and the piled part 46 is passed through the circumferential surfaces of a pair of roller 12 through an electric power supplying cable 21. The high-frequency current reaches a circular electrode 18 from an inner conductive body 25 and reaches an outer conductive body 23 through the piling part 46, the pinching surface 23 of the circumferential surface of the roller 32, the circular electrode 18, the electric power supplying shoe 28, a conductive bar 27 and a clamping device 26. The piling part 46 is heated by means of the high-frequency current supplying and is continuously welded together while the rollers 12, 32 are being rotated. |
