Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22C—FOUNDRY MOULDING
  • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22C—FOUNDRY MOULDING
  • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
  • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22C—FOUNDRY MOULDING
  • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
  • B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
• • 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

Definitions

• An apparatus for making mould parts with a horizontal parting face An apparatus for making mould parts with a horizontal parting face.
• the invention relates to an apparatus for making mould parts with a horizontal parting face and of the type that includes a container for the moulding material, preferably moulding sand, a moulding chamber which may be subjected to vacuum, and which may be defined at the bottom by a pattern plate and at the top by a squeeze plate, whereby the moulding material is impulsively sucked into the moulding chamber through the squeeze plate and is post-compacted in it by advancing the squeeze plate with the pattern plate, which carries a half pattern.
• the moulding sand tends to bridge and clot in the inlet to the moulding chamber due to internal friction in the moulding material and to its friction against the walls of the container.
• the object of the invention is to provide an apparataus of the type referred to in the opening paragraph, where the danger of blocking and bridging in the inlet to the moulding chamber has been eliminated, at the same time as satisfactory filling and compaction of the moulding material are achieved in the moulding chamber.
• this object is achieved by an apparatus of the type described in the opening paragraph characterized in that the moulding material is sucked into the moulding chamber through a slot placed centrally in the squeeze plate, and that the bottom of the container is tapered in V-shape in the direction of the slot in its entire longitudinal direc ⁇ tion, whereby one or more air intake openings are provided on the tapered side faces of the container.
• the slot may have a length and a width corresponding to the moulding chamber, ranging from 30 to 90 mm, preferably 55 mm.
• particul arly exce l l ent fi l l ing is obtained when s lot widths are kept within this interval , and a s lot width of 55 mm is particul ar ⁇ ly advantageous.
• screen pl ates are pl aced above the air intake openings on the side faces pl aced opposite each other in the container bottom tapered in V- shape, while forming side slots some distance above the bottom slot.
• the invention wi l l be described in more detai l be l ow with reference to the drawing, whose single figure gives an oblique schematic view of an apparatus desig- ned according to the invention.
• the apparatus inc l udes a container 1 for keeping the moulding material 2, preferably moulding sand.
• the apparatus is used for simultaneous making of two matching mould parts in an upper and a l ower moul ding chamber, the bottom moulding chamber connecting with the container 1 via an L-shaped down pipe.
• the lower moulding chamber and the L-shaped down pipe are however not a prerequi- site for the invention and wi l l consequent ly not be described in more detail .
• Below the container 1 there is a moulding chamber 3, at its top defined by a squeeze plate 5 and at the bottom designed for closing against a pattern plate 4, which, as indicated, may be removed from the area below the 5 moulding chamber for pattern plate replacement.
• the container 1 connects with the moulding chamber 3 through an inlet tapered in V-shape at the bottom 7 of the container.
• the tapered inlet merges into a slot 6 in the squeeze plate 5.
• the slot has a length L, equal 10 to the length of the moulding chamber, and a width W, preferably in the area from 30 to 90 mm.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Casting Devices For Molds (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)
• Toys (AREA)
• Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
• Press-Shaping Or Shaping Using Conveyers (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8098613

Family Applications (1)

Country Status (10)

Cited By (1)

Families Citing this family (3)

Citations (1)

Family Cites Families (1)

• 1986
  • 1986-02-26 DK DK088486A patent/DK88486A/da not_active Application Discontinuation
  • 1986-04-02 JP JP61074373A patent/JPS62199246A/ja active Granted
• 1987
  • 1987-02-24 CN CN87100913A patent/CN1006285B/zh not_active Expired
  • 1987-02-24 BR BR8706035A patent/BR8706035A/pt unknown
  • 1987-02-24 WO PCT/DK1987/000018 patent/WO1987005240A1/en not_active Ceased
  • 1987-02-24 UA UA4203713A patent/UA6328A1/uk unknown
  • 1987-02-24 US US07/108,830 patent/US4739821A/en not_active Expired - Lifetime
  • 1987-02-24 KR KR1019870700977A patent/KR910001172B1/ko not_active Expired
  • 1987-02-24 EP EP87901409A patent/EP0260287B1/en not_active Expired
  • 1987-10-23 SU SU874203713A patent/SU1630603A3/ru active

Patent Citations (1)

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