| 摘要 |
PROBLEM TO BE SOLVED: To suppress poor weld in jointing two molded bodies. SOLUTION: This injection molding equipment for forming the molded body 300a transmitting laser beams includes: a female mold 400 for forming a cavity 310 for filling a material; a male mold 500; a main gate 407 provided in either of the female mold 400 or the male mold 500 to fill the material in the cavity 310; and a valve gate 447 provided in either of the female mold 400 or the male mold 500 and connected to a cavity end part 315 which is an end of the cavity 310 to form a connection part 325 for connecting the molded body formed by the cavity 310 with another molded body by laser welding. After the material is filled in the cavity 310 from the main gate 407, the material is filled from the valve gate 447 with respect to the cavity 310 in the direction opposite to the filling direction of the material from the main gate 407, to push back a nontransparent portion generated during the material filling from the main gate 407 to the main gate side. COPYRIGHT: (C)2011,JPO&INPIT |
