Patent ID: 8197247

Claim:
A mold plate module comprising; a mold plate comprising a first surface, a blind hole defined in the first surface, a through hole defined in a bottom surface of the mold plate in the blind hole and in communication with the blind hole, two mold cavities, and two first sub-runners defined in the first surface connecting the corresponding mold cavities to the blind hole, the first sub-runners being located at opposite sides of the blind hole; and an inserting block comprising a second surface and a lateral surface, a block through hole defined in the second surface to allow flow of molding material and two second sub-runners and a third sub-runner defined in the second surface, the lateral surface adjoining and surrounding the second surface, the two second sub-runners and the third sub-runner communicating with the block through hole and extending toward and terminating at the lateral surface, the two second sub-runners being aligned along a line passing through the center of the second surface, and the third sub-runner being distinctly oriented from the two second sub-runners, the inserting block being detachably received in the blind hole and rotatable relative to the mold plate to switchingly couple the at least one second sub-runner with the first sub-runners, the inserting block having a first position in which the two second sub-runners are respectively in communication with the two first sub-runners, and a second position in which the third sub-runner is in communication with one of the first sub-runners and the lateral surface of the inserting block blocks the other one of the first sub-runners.