Flexible ejector for injection molds

Abstract

Provided with a rod (1) meant to be attached to the ejector plate (9) which extends in a flat and elastically deformable neck (2) which ends in a small header (3) provided with a material recess (4) which is adapted in shape and size to the negative (5) to be obtained, said header (3) having a basically rectangular prismatic shape, that is with faces which are parallel by pairs, in order to simplify its machining, while the diagonal length of its section is equal to or smaller than the diameter of the rod (1), allowing its assembly from the outside of the body (7) of the mold. In order to attach the rod (1) to the ejector plate (9) said rod is provided with an externally threaded segment (10) on which moves a screw (11) which allows a precision adjustment of the axial position of said rod (1), which rod in turn is immobilized in an angular sense as it has a flat facet in correspondence with one of its generator lines, on which acts a key (14). A bushing (15) mounted on the body (7) of the mold provides the guide (8) for header (3), which can slide smoothly and with a perfect adjustment.

Dependencies are inferred from the claim text.