Processing method of a tube head structure and a product thereof

Abstract

A processing method of a tube head structure and a product thereof, specifically suitable for tube body made of special materials. The present invention improves a connecting method between the tube head and the tube body such that the two are more firmly connected. The processing method includes the following steps: A tube body sleeves a core rod; an upper mold is pressed to the core rod; when the upper mold is pressed downward, an upper end of the tube body is pressed and bends inwardly; after the upper mold finishes the downward pressing process, a tube head shaped cavity is formed between the upper mold, the tube body and the core rod, and a tip of the upper end of the tube body is not in contact with an opposite surface of the upper mold and an opposite surface of the core rod; injection molding material of the tube head is injected into the tube head shaped cavity, and the mold is opened after the injection molding material cools down and solidifies, thereby completing the injection molding. A tube head structure, including a tube body, and a tube head formed on the upper end of the tube body by overmolding; a shoulder position of the tube head protrudes to form an outer wrapping edge and an inner wrapping edge; the outer wrapping edge is positioned above the inner wrapping edge and the two are spaced apart by a gap; the upper end of the tube body bends inwardly; the outer wrapping edge and the inner wrapping edge are adhered to an outer surface and an inner surface of the upper end of the tube body by overmolding.

Dependencies are inferred from the claim text.