Title:
INJECTION DEVICE AND MOLDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/102597
Kind Code:
A1
Abstract:
Provided is an injection device 9, wherein an injection cylinder 27 is connected to the back end of a plunger 21. A liquid pressure device 43 supplies a hydraulic fluid to the injection cylinder 27. An electrically operated first drive device 29A is attached to or detached from a piston rod 39 of the injection cylinder 27. A control device 5 starts forward movement of the piston 37 to start injection by supplying the hydraulic fluid from an accumulator 47 to a head-side chamber 35h. The control device 5 causes a movable member 69 to retreat using a first electric motor 31A of the first drive device 29A, in a state where an attachment/detachment unit 33 prevents the retreating of the movable member 69 from the piston rod 39. Due to this configuration, the control device performs control for pushing the hydraulic fluid of the injection cylinder 27 out to the accumulator 47, using the retreating piston 37 of the injection cylinder 27.
Inventors:
TSUJI MAKOTO (JP)
TOYOSHIMA TOSHIAKI (JP)
SASAKI HORONARI (JP)
FUJIOKA TOSHIHARU (JP)
NODA SABURO (JP)
TOYOSHIMA TOSHIAKI (JP)
SASAKI HORONARI (JP)
FUJIOKA TOSHIHARU (JP)
NODA SABURO (JP)
Application Number:
PCT/JP2021/041105
Publication Date:
May 19, 2022
Filing Date:
November 09, 2021
Export Citation:
Assignee:
SHIBAURA MACHINE CO LTD (JP)
International Classes:
B29C45/53; B22D17/32
Foreign References:
| JP2015163411A | 2015-09-10 | |||
| JP2016185550A | 2016-10-27 | |||
| JP2018069287A | 2018-05-10 |
Attorney, Agent or Firm:
IIJIMA, Yasuhiro (JP)
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