| 摘要 |
PURPOSE:To reduce space requirement for installation of a device in comparison with a conventional rotary transfer type, by welding with heat a meterial transferred on a straight line, by a pair of high frequency induction heat-oil devices synchronously moved with the transfer. CONSTITUTION:When an open end of a container 22 or the like to be welded with heat, which is constituted by superposing aluminum foil and thermoplastic resin in turn, is welded with heat at the internal face of a core member, at first, a pair of high frequency induction heat coils 25 are positioned at the inlet side in the condition that the holding distance is opened to position so as to be opposite to the No.1-No.6 containers 22 or the like to be welded with heat. Next, the holding distance of heat coils 25 is closed to hold the weld parts of six containers 22. In this state, a pair of heat coils 25 are transferred in synchronization with the movement of containers 22. And at the same time, the heat-coils 25 start to weld the containers 22. After completion of welding, a pair of heat coils 25 are opened and transferred to the start position again to oppositely locate to the No. 7-No.12 containers 22. |
