Patent ID: 8052115

Claim:
An insert molding apparatus, comprising: a first mold having: at least two cavity plates, at least one receiving groove defined in one of the at least two cavity plates, and a jamming block defined in the other cavity plate for corresponding to the receiving groove; at least two connecting elements, one end of each of the at least two connecting elements positioned in one of the at least two cavity plates while the other end of the each connecting element passing through the other cavity plate for movably connecting the at least two cavity plates with each other, and at least one elastic element compressibly disposed between and against the at least two cavity plates in such a manner that the at least two cavity plates are capable of contacting with each other or separating away from each other; and a second mold engaged with the first mold for compelling one of the at least two cavity plates to move toward the other cavity plate so that the at least two cavity plates are in contact with each other; wherein the jamming block protrudes from a bottom of a retaining cavity which is defined in the same cavity plate as the jamming block.