INFRARED WELDING DEVICE

The invention provides an infrared welding device which successively joins component members of a liner to one another. The infrared welding device is equipped with collet chucks that hold domes and a pipe slidably and coaxially with gaps created therebetween respectively, infrared radiation lamps that melt end portions of the domes and end portions of the pipe through heating respectively, vertical operation mechanisms that move the infrared radiation lamps between insertion positions and retreat positions respectively, and a pressing mechanism and a pressure-receiving mechanism that press the end portions of the domes against the end portions of the pipe respectively. 本发明是一种连续地对内衬的构成构件进行接合的红外线熔敷装置。所述红外线熔敷装置具备：筒夹，将圆顶和筒管以空出间隔并能在轴向上滑动的方式进行保持；红外线辐射灯，使圆顶和筒管的端部加热熔融；上下动作机构，使红外线辐射灯在插入位置与退避位置之间移动；以及按压机构和受压机构，将圆顶的端部按压至筒管的各端部。