Earphone connector and preparation method thereof

A preparing method of an earphone connector, comprising steps:

• (1) first-shot injection molding:
• injecting a first plastic material of electroplating grade into a first shot mold of a double-color injection molding machine, and after solidification, obtaining a first component;
• (2) second-shot injection molding:
• injecting a second plastic material of non-electroplating grade into a second shot mold of the double-color injection molding machine at a molding position of the first component, the second plastic material being combined with the first component along an outer side of the blocking wall structure in a predetermined flow direction, and after solidification, obtaining a second component;
• wherein the earphone connector comprises a first component and a second component that are combined with each other, wherein the first component is made of a first plastic material of electroplating grade, the second component is made of a second plastic material of non-electroplating grade, a portion of the first component exposed from the second component is covered with a metal electroplating layer, and an inner side of the first component is provided with a blocking wall structure.