| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection mold for insert molding in which simultaneous operation of holding pins arranged in upper and lower molds can be simultaneously operated with the extruding rods of an injection device by employing a rack and a pinion as the interlocking device of the holding pins. SOLUTION: The holding pins in the lower mold and the upper mold are arranged in the opposite position of the upper and lower face of a cavity so as to freely enter and exit. The holding pin in the lower mold is coupled to a projecting plate. The holding pin in the upper mold is coupled to the holding plate arranged by elastically pressing the same in a cavity direction. An interlocking lever is arranged in the holding plate while projecting the distal end of the lever from a parting face by only holding stroke. The interlocking device meshing with a driving rack and a driven rack reciprocatingly moving in a case in both the side of a pinion in the case are installed in the cavity plate of the lower mold to arrange the driven rack directly under the interlocking lever. The driving rack is coupled to the projecting plate. COPYRIGHT: (C)2009,JPO&INPIT |
