Patent ID: 11911942
Assignee: ZHUJI BIHAN JINGGONG MOULD PLASTIC CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. An injection mold capable of planing and cutting gates in an inside thereof, the injection mold comprising:
a blade fixed block arranged between a moving mold and a fixed mold;
blades arranged on the blade fixed block and configured for cutting off gate condensed material; and
ejectors configured for ejecting the gate condensed material and the blade fixed block out of the moving mold,
wherein runners are formed between the blade fixed block and the fixed mold; cut holes configured for communicating the runners and the gates are formed in the blades; ejector holes configured for penetrating the ejectors are formed in portions of the blade fixed block which are corresponding to bottoms of the runners; the blade fixed block moves relative to the moving mold in a mold opening direction; and the moving mold is provided with a limiting mechanism configured to limit a position of the blade fixed block after each of injection molding parts is separated from a corresponding one of cavities of the moving mold, the limiting mechanism includes a plurality of pull-rod guide posts, and the pull-rod guide posts are uniformly connected to the blade fixed block; each of the ejectors is configured to push runner condensed material and the blade fixed block to move outwards together after injection molding is completed and the injection mold is opened, when ejecting is started; the blade fixed block is configured to be pulled immovably by the pull-rod guide posts, after a product is brought away from a corresponding one of cavities of the moving mold; each of the ejectors is able to continue ejecting to drive the runner condensed material to continue moving forwards, so that the runner condensed material is cut off by the blades that have been pulled immovably by the pull-rod guide posts;
wherein first edges of the cut holes which are each away to a top end of a corresponding one of the ejectors are connected to respective cutting edges; second edges which are each opposite to the first edges of the cut holes are connected to respective force transferring slopes, wherein the first edges are top edges relative to the ejectors and the second edges are bottom edges relative to the ejectors; and each of the force transferring slopes is of an inclined structure and faces toward a corresponding one of the runners; an inclined surface of a corresponding one of the cutting edges faces toward the corresponding one of the runners.