Title:
HIGH-PRECISION AND HIGH-EFFICIENCY INJECTION MOLD FOR HIGH-ASPECT-RATIO DOUBLE-LAYER CYLINDRICAL PART, AND MOLDING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/246249
Kind Code:
A1
Abstract:
The present invention relates to the technical field of molds for plastic molding, and disclosed are a high-precision and high-efficiency injection mold for a high-aspect-ratio double-layer cylindrical part, and a molding method using same. The injection mold comprises a support base plate (1). A movable mold fixing frame (2) and a movable mold base plate (3) are sequentially mounted at the middle of a lower surface of the support base plate (1) by means of positioning screws (31). The center of an upper surface of the support base plate (1) is provided with a lower core mold accommodating cavity, which is adapted to mount a lower core mold (14). The lower core mold (14) is provided with a lower semicircular cavity (141), which is adapted to accommodate an outer die barrel (20); a right side of the lower semicircular cavity (141) is open, and a left side of the lower semicircular cavity is provided with a lower half cavity bottom (142); the lower half cavity bottom (142) is provided with a lower semicircular hole (143), which is adapted to accommodate an inner die rod (21), and an upper surface of the lower core mold (14) is provided with a positioning protrusion (144), a lower half feeding groove (145) and a remaining groove (146). The present invention has a rational design and has a good practical application value.
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Inventors:
LIU YAQING (CN)
DU RUIKUI (CN)
ZHAO GUIZHE (CN)
WEN KAI (CN)
DU RUIKUI (CN)
ZHAO GUIZHE (CN)
WEN KAI (CN)
Application Number:
PCT/CN2023/088396
Publication Date:
December 28, 2023
Filing Date:
April 14, 2023
Export Citation:
Assignee:
UNIV NORTH CHINA (CN)
SHANXI ZHONGBEI NEW MATERIAL TECH CO LTD (CN)
SHANXI ZHONGBEI NEW MATERIAL TECH CO LTD (CN)
International Classes:
B29C45/26; B29C45/33
Foreign References:
| CN114789541B | 2022-09-20 | |||
| CN104690911A | 2015-06-10 | |||
| CN102744837A | 2012-10-24 | |||
| CN109795079A | 2019-05-24 | |||
| CN210705825U | 2020-06-09 | |||
| CN214872383U | 2021-11-26 | |||
| JP2001088172A | 2001-04-03 | |||
| US20100001436A1 | 2010-01-07 |
Attorney, Agent or Firm:
WAYNE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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