Method and device for producing a tube from thermoplastic synthetic material via injection moulding
US10981308B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2017 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Sep 11, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/712
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for producing a tubular component as an article from a thermoplastic synthetic material while using an injection-molding device having a tool that forms an article cavity, having means for filling the article cavity with a thermoplastic molding compound, and having an injection device for injecting a fluid into the article cavity, wherein the injection device comprises a nozzle body, wherein the method provides that the nozzle body is used as a mold core for molding the shape of an end of the article, that the nozzle body is used as a carrier for an additional component to be incorporated into the article, wherein: a) the nozzle body first equipped with the additional component, b) the nozzle body is introduced into the closed article cavity, or the tool is closed around the nozzle body, c) the article cavity in a further method step is at least partially filled with the thermoplastic molding compound, d) a pressurized fluid is then induced into the article cavity by means of the injection device, wherein part of the molding compound is displaced into a secondary cavity, and e) the article is de-molded. The invention furthermore relates to an injec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.