Title:
SWITCHING DEVICE FOR DOUBLE NOZZLES OF 3D PRINTER
Document Type and Number:
WIPO Patent Application WO/2019/080146
Kind Code:
A1
Abstract:
A switching device for double nozzles of a 3D printer includes two transmission blocks (300), a rotary part (400) and two spring parts (500). The two transmission blocks (300) are in mirror image structures with each other and are respectively mounted on two nozzle devices (200); each transmission block (300) is provided with a pressure supporting and transmiting portion (310), and the pressure supporting and transmiting portion (310)includes a pressing-down stopping portion (311), a pressure transmiting portion (312), and a restoring stopping portion (313) which are connected in sequence; the rotary part (400) is connected to the case and is provided with two pressing parts (410); the two spring parts (500) respectively sleeve the two nozzle devices (200), and the spring part (500)supports the corresponding transmission block (300); the rotary part (400) can rotate in a reciprocating manner, the rotary part (400) drives the pressing parts (410) to move on the two pressure supporting and transmiting portions (310), and when the pressing parts (410) move to the pressing-down stopping portions (311)from the restoring stopping portions (313), the pressing parts (410) push the pressure transmiting portions (310) to move downward, and when the pressing parts (410) move on the pressing-down stopping portions (311) or the restoring stopping portions (313), the pressure supporting and transmiting portions (310) keep a stopping state. The switching device can eliminate a scraping phenomenon of the double nozzle devices (200) in a 3D printing process, and the nozzle devices (200) have relatively high location accuracy and repeated location accuracy in a moving process.
Inventors:
LI JIANZHE (CN)
FENG HUA (CN)
ZONG JUNJIE (CN)
LONG WANGPING (CN)
FENG HUA (CN)
ZONG JUNJIE (CN)
LONG WANGPING (CN)
Application Number:
PCT/CN2017/108477
Publication Date:
May 02, 2019
Filing Date:
October 31, 2017
Export Citation:
Assignee:
SHANGHAI FUSION TECH CO LTD (CN)
International Classes:
B29C64/205; B33Y30/00
Foreign References:
| CN205889899U | 2017-01-18 | |||
| CN206446130U | 2017-08-29 | |||
| CN104527079A | 2015-04-22 | |||
| CN106985391A | 2017-07-28 |
Attorney, Agent or Firm:
J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (CN)
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