Title:
INJECTION DEVICE FOR DIE CASTING MACHINE, DIE CASTING MACHINE, VACUUM PIPE STRUCTURE FOR DIE CASTING MACHINE, AND CASTING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/225272
Kind Code:
A1
Abstract:
In order to prevent the inflow of outside air into a suctioned sleeve and suppress turbulence in molten metal, thereby achieving a stable suctioning of the interior of the sleeve, an injection device 1 in a die casting machine 100 is configured so as to be capable of suctioning a suction recess 120 partitioned in the tip 20 of a plunger 12 and a space 75 in front of the front end of the tip 20. Two or more suction openings 14–17 capable of suctioning the inside of a sleeve 11 are formed side by side in the sleeve 11 in the direction D1 in which the plunger 12 advances/retreats. In accordance with the position of the plunger 12 as the plunger advances relative to the sleeve 11, at least one of the suction openings among the two or more suction openings 14–17 selectively communicates with the space 75 in the front, and at least one of the suction openings among the two or more suction openings 14–17 selectively communicates with the suction recess 120.
Inventors:
ISHIBASHI NAOKI (JP)
TSURUGI YUUICHIROU (JP)
MIYAMOTO YUUKI (JP)
TSURUGI YUUICHIROU (JP)
MIYAMOTO YUUKI (JP)
Application Number:
PCT/JP2019/017391
Publication Date:
November 28, 2019
Filing Date:
April 24, 2019
Export Citation:
Assignee:
UBE MACHINERY CORP LTD (JP)
International Classes:
B22D17/14
Foreign References:
| JPH0421632Y2 | 1992-05-18 | |||
| JPS5232734Y2 | 1977-07-26 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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