3D printing reverse grafting forming manufacturing method of mold for injection molding

The invention discloses a 3D printing anti-grafting forming manufacturing method for an injection mold, which comprises the following manufacturing steps: step 1, measuring an injection mold entity: measuring data such as specification dimensions and gap tolerances of the whole injection mold entity and parts by a worker by using a measuring tool, then, a high-definition camera is used for carrying out omnibearing shooting on the whole and the parts of the injection mold for subsequent assembly reference, various data parameters of the initial injection mold object detected in advance are adopted for comparison, and then the injection mold parts are subjected to conception design and manuscript analysis marking; and finally, according to the complexity of the injection mold part, different modeling methods are selected for precise three-dimensional modeling operation, two inspection modes of instrument testing and manual comparison testing are utilized for precise printing and manufacturing of the finally man