Co-cured manner of formation manner and lead/read screw and rotor of lead/read screw and die for formation.

摘要

The purpose of this invention is to provide a method of forming a lead screw for converting the rotary motion into a linear motion, and an integral molding method of a rotor and a lead screw to save the productivity and to lower the productivity.A pipe is inserted into the wall of the pipe to correspond to a predetermined screw thread, a mold is formed with a threaded groove fitted to the hole column, and a pipe is fitted into the cavity of the mold, and a pipe is fitted to fit the hole column, and a predetermined hole column of the pipe is made A method of injecting a resin material through a gate disposed at an outer periphery, and a mold communicating with a cavity on which one side of the pipe is fitted with a rotor and a cavity in which the other side of the pipe can be inserted and fitted with a rotor How to mold molded and mold through.