Title:
GATE STRUCTURE OF MOLD HAVING BUILT-IN HOT RUNNER AND MOLD HAVING BUILT-IN HOT RUNNER
Document Type and Number:
WIPO Patent Application WO/2023/238898
Kind Code:
A1
Abstract:
Provided are a gate structure of a mold having a built-in hot runner, a mold having a built-in hot runner, and an injection molding machine, which are capable of preventing occurrence of resin burning and generation of weld lines due to collision of a resin material against a valve pin and are capable of reducing pressure loss in supplying resin. A gate structure 5 of a mold having a built-in hot runner has: a probe 21 that extends along a Y-direction, is hollow, and has no movable object in the hollow inside space 1c, wherein a resin material 6 flows through the probe 21 along the Y-direction; a gate 22 that is disposed in the vicinity of an end part of the probe 21 and discharges the resin material 6 from the probe 21 to the outside in the direction parallel to the Y-direction; and an opening/closing part 23 that can be switched, by opening/closing the gate 22, between discharge of the resin material 6 to the outside and blocking of same, wherein the opening/closing part 23 has a shutter member 24 that can be switched between an opening state where the gate 22 is opened and a closing state where the gate 22 is closed, and a driving means 25 for driving the shutter member 24 to move between the opening state and the closing state.
Inventors:
TODA TOSHIYUKI (JP)
Application Number:
PCT/JP2023/021222
Publication Date:
December 14, 2023
Filing Date:
June 07, 2023
Export Citation:
Assignee:
SEIKI CORP (JP)
International Classes:
B29C45/28
Foreign References:
| JP2001505838A | 2001-05-08 | |||
| US6056536A | 2000-05-02 | |||
| JP2003531749A | 2003-10-28 | |||
| JP2017213876A | 2017-12-07 | |||
| JP2020011488A | 2020-01-23 |
Attorney, Agent or Firm:
KAJI Toshikazu et al. (JP)
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