Extrusion device of three-dimensional printer and optical detection mechanism thereof
US10272614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Jul 4, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An extrusion device of a three-dimensional printer includes a ratchet, a spray head, an idler, a feeding wheel and an optical detection mechanism. The spray head and the idler are disposed adjacent to the ratchet. A thermofusible material is provided to the spray head by the feeding wheel. The optical detection mechanism includes a guiding element and an optical detecting assembly. The guiding element is disposed between the ratchet and the feeding wheel along a feeding path. The optical detecting assembly is disposed adjacent to the guiding element. The thermofusible material is guided by the guiding element and partially disposed on a detecting area. A waveband light is emitted to the detecting area by the optical detecting assembly. The image produced by the reflection of the waveband light reflected by the detecting area is detected by the optical detecting assembly. Therefore, the operation of the equipment is completely monitored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.