Injection molding apparatus for worm wheel
US10406737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Oct 24, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2015/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is an injection molding apparatus for a worm wheel, in which the worm wheel is not only integrally manufactured by an injection mold method, but a gear teeth structure of a gear forming unit is also manufactured as an injection mold without a hobbing operation, and the structure of the injection molding apparatus is also improved so that worm wheel products can be easily taken out from the injection mold. The injection molding apparatus includes: a boss injection mold; a product injection mold having a movable side core, a fixed side core, and a worm gear tooth-shaped core; and a take-out unit for taking out a worm wheel product formed with a worm gear by the product injection mold, wherein the take-out unit includes: a plurality of take-out pins; a take-out plate; and a guide unit guiding rotation of the worm gear tooth-shaped core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.