Title:
FLASKLESS MOLDING MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/199882
Kind Code:
A1
Abstract:
This flaskless molding machine 1 is provided with: an upper flask 15 and a lower flask 17 which can hold a match plate from both sides; a drive unit (37) which moves the lower flask in the vertical direction; a lower filling frame 41 which can connect with the lower flask; an upper plate 25 which can enter and withdraw from the upper flask; a lower plate 40 which can enter and withdraw from the lower filling frame; an upper flask hydraulic cylinder (16) which is linked to the upper flask; a first hydraulic circuit (81) of the upper flask hydraulic cylinder; a lower filling frame hydraulic cylinder (42) which is linked to the lower filling frame; a second hydraulic circuit (83) of the lower filling frame hydraulic cylinder; and drive units (37, 80) which move the lower plate upwards to perform squeezing processing, wherein the first hydraulic circuit comprises a back pressure circuit (82) which applies to the upper flask hydraulic cylinder a first back pressure that resists upward movement of the upper flask with respect to the upper plate during squeeze processing, and the second hydraulic circuit comprises a back pressure circuit (84) which applies to the lower filling frame hydraulic cylinder a second back pressure that resists downward movement of the lower filling frame with respect to the lower plate during squeeze processing.
Inventors:
SAKAGUCHI KOICHI (JP)
TERABE TOKIYA (JP)
FUJITA TATSUMI (JP)
TERABE TOKIYA (JP)
FUJITA TATSUMI (JP)
Application Number:
PCT/JP2017/018069
Publication Date:
November 23, 2017
Filing Date:
May 12, 2017
Export Citation:
Assignee:
SINTOKOGIO LTD (JP)
International Classes:
B22C11/10; B22C11/00; B22C15/02
Foreign References:
| JP2008161931A | 2008-07-17 | |||
| JPH0691347A | 1994-04-05 | |||
| JPH05237597A | 1993-09-17 | |||
| JP2003055967A | 2003-02-26 | |||
| JP2010247164A | 2010-11-04 | |||
| JPS5155814U | 1976-04-30 | |||
| JPS5035006B1 | 1975-11-13 | |||
| JP2008161931A | 2008-07-17 | |||
| JP4321654B2 | 2009-08-26 |
Other References:
See also references of EP 3427862A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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