| 摘要 |
PROBLEM TO BE SOLVED: To execute miniaturization of a cooling device, increase of an extrusion speed, avoiding generation of warpage with time, or the like by a method wherein a part facing a hollow part is cooled to the same degree as that for a surface of a weatherstrip. SOLUTION: A first part 9 coextruded from a die 1 is introduced in a water bath tank 11 to be cooled. Cooling water 11a stored in the water bath tank 11 becomes an outer surface of a weatherstrip. It is not only cooled by coming in an contact with a part of a first part 9, but also it enters into a part to become a hollow part from a gap, and cools directly a part to be a fin part and a fitting part from inside. Therefore, both of an inside and outside of the fin part having the hollow part are also cooled in the same way. The weatherstrip under a state of being continued longitudinally is sent into a cutting machine 23 via a taking off device 19, and becomes the weatherstrip 23 cut at specific intervals. |
