JPS57184550A - Hopper device - Google Patents

Hopper device

Info

Publication number
JPS57184550A
JPS57184550A JP56069842A JP6984281A JPS57184550A JP S57184550 A JPS57184550 A JP S57184550A JP 56069842 A JP56069842 A JP 56069842A JP 6984281 A JP6984281 A JP 6984281A JP S57184550 A JPS57184550 A JP S57184550A
Authority
JP
Japan
Prior art keywords
molding sand
cavity
hopper
mold
sand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56069842A
Other languages
Japanese (ja)
Other versions
JPS6235853B2 (en
Inventor
Nagato Unosaki
Hishinao Komori
Kazuharu Matsui
Shigehiro Toyoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Shinto Industrial Co Ltd
Original Assignee
Sintokogio Ltd
Shinto Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd, Shinto Kogyo KK filed Critical Sintokogio Ltd
Priority to JP56069842A priority Critical patent/JPS57184550A/en
Publication of JPS57184550A publication Critical patent/JPS57184550A/en
Publication of JPS6235853B2 publication Critical patent/JPS6235853B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/23—Compacting by gas pressure or vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE:To produce a cylindrical mold efficiently by the constitution wherein evacuation chambers are provided in a cylindrical flask body, and plural pieces of molding sand supply holes penetrating to the top and bottom of the evacuation chambers are provided to the bottom surface and the discharge opening part of an annular hopper storing molding sand is provided in the upper part in continuation therewith. CONSTITUTION:When a stop valve 16 is opened and a vacuum pump is operated, the cavity 6 of a cylindrical pattern 5 is evacuated to a negative pressure through evacuation chambers 2, 8 and vent holes 3, 10. Therefore, the molding sand 13 in a hopper 13 is sucked through molding sand supply holes 9 and is packed to all corners of the cavity 6. Here, the hopper 7 is removed from the top surface of the pattern 5, and a hardening gas is passed through the inside of the sand 13 in the cavity 6 to harden the sand 13. The mold is released after this, whereby the hardened mold is removed.
JP56069842A 1981-05-09 1981-05-09 Hopper device Granted JPS57184550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069842A JPS57184550A (en) 1981-05-09 1981-05-09 Hopper device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069842A JPS57184550A (en) 1981-05-09 1981-05-09 Hopper device

Publications (2)

Publication Number Publication Date
JPS57184550A true JPS57184550A (en) 1982-11-13
JPS6235853B2 JPS6235853B2 (en) 1987-08-04

Family

ID=13414454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069842A Granted JPS57184550A (en) 1981-05-09 1981-05-09 Hopper device

Country Status (1)

Country Link
JP (1) JPS57184550A (en)

Also Published As

Publication number Publication date
JPS6235853B2 (en) 1987-08-04

Similar Documents

Publication Publication Date Title
JPS55136543A (en) Cover device of mold molding machine
JPS5614051A (en) Method and device for molding mold
JPS57184550A (en) Hopper device
JPS57124549A (en) Method for supplying molding sand and pattern plate device
JPS57124546A (en) Supplying device for molding sand
JPS5752547A (en) Mold making method
JPS5775248A (en) Production of mold
JPS57195559A (en) Nozzle device
JPS5581041A (en) Mold molding method
JPS55149749A (en) Mold molding method
JPS6431550A (en) Lost foam pattern for runner in casting device
JPS5764441A (en) Mold making method
JPS5797840A (en) Core molding method
JPS56119644A (en) Method for packing molding sand and its device
JPS55147461A (en) Mold molding method and pattern plate
JPS5791841A (en) Foundary sand supplying method
JPS57171544A (en) Molding method for mold
JPS5739056A (en) Mold making method
JPS5674351A (en) Manufacture of mold
JPS57139446A (en) Molding method for mold
JPS5795433A (en) Reaction injection molding and its device
JPS56109145A (en) Mold molding machine
JPS55103258A (en) Molding method of mold and apparatus thereof
JPS5890347A (en) Molding method for master mold
JPS57202958A (en) Vacuum casting device