• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In an automatic mold part producing apparatus having a mold chamber which is filled with mold forming material that subsequently is compressed between a pair of opposite end walls, or pattern boards the mold forming material is forced into said mold chamber by means of pressurized air, the pressure of which is gradually or stepwise increased during the chamber filling operation, for the purpose of achieving uniform compactness or density of the mold forming material throughout the height of the mold chamber.
    公开号:SU820648A3
    申请号:SU721830859
    申请日:1972-09-22
    公开日:1981-04-07
    发明作者:Гуннергаард Мариус
    申请人:Данск Индустри Синдикат А/С (Фирма)；
    IPC主号:
    专利说明:

    FIG. 1 shows the proposed device, a longitudinal section f in FIG. 2 - 4 variants of the device, top view, o
    The device contains a pressing chamber 1 with a bottom 2 and an upper wall 3, side walls x and two end walls 4 and 5. Wall 4 carries the molding plate b, and wall 5 carries the model part 7. The pressing chamber is connected to the pickup bin 8 through the groove 9 in the upper wall 3. The hopper 8 is connected through one or more pipes 10 to the valve 11 with one or two receivers 12 (reservoir with compressed air).
    The device shown in FIG. 2 has two receivers 12, which are connected through separate pipes 10a and 106 with valves On and 11b to a feed hopper 8.
    In the device shown in FIG. 3, the hopper 8 is connected by two pipes 10a and 106 with valves Ha and 116 with a single receiver 12.
    In the device shown in FIG. 4, the hopper 8 is connected to one receiver 12 by one pipe 10, equipped with an adjustable valve 11c, which can be adjusted according to a predetermined program that changes the flow cross section, or, depending on pressure, so as to provide the desired filling process for chamber 1
    The device works as follows.
    The hopper 8 is filled with molding sand to the level indicated by the dotted line 13, and is isolated from the encapsulated environment. At the beginning of the filling of the pressing chamber 1 (Fig. 2), only the valve On is open and it is assumed that both receivers 12 have the same initial pressure. When chamber 1 is partially filled, the second valve 116 is opened, as a result of which an increased
    pressure above the sand in the hopper 8. This increase in pressure requires an increased air supply per unit of time, as the volume above the sand gradually increases.
    Two receivers 12 have different initial pressures and, possibly, different capacities, and valves Na and 11b can operate alternately, so that at the current time, only one of these valves is open. The air flow through the valves can be adjusted as desired.
    The device shown in FIG. 3. Can operate in the same way as the device shown in FIG. 2
    In the device shown in Fig. 4, the adjustable valve 11b is adjusted according to a predetermined program that provides the desired process of filling the chamber 1.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    An automatic device for making casting molds, comprising a horizontal pressing chamber, two opposite end walls, at least one of which has the ability to move in the axial direction, the power supply hopper connected to the pressing chamber and the compressed air supply system, characterized in that the purpose of obtaining forms with uniform density in height, the supply hopper is connected through two series-acting valves with one or two receivers or through one control valve en with one receiver.
    Sources of information taken into account in the examination 1. US Patent No. 3008199, 164-22, 1961 (prototype),
    / 2
    eight
    FIG g.
    Phi1.3
    FIG. four
    类似技术:
    公开号 | 公开日 | 专利标题
    SU820648A3|1981-04-07|Automatic device for making casting moulds
    US3209057A|1965-09-28|Pressure molding of dry material
    US1140785A|1915-05-25|Molding-machine.
    US1811950A|1931-06-30|Method of and apparatus for pressure concrete molding
    SU824882A3|1981-04-23|Device for making casting moulds from sand
    SU550109A3|1977-03-05|Apparatus for making flaskless molds
    US2075992A|1937-04-06|Production of compact molded bodies from ceramic masses, concrete or the like
    US3965961A|1976-06-29|Method of operating automatic mold part producing apparatus
    RU1780917C|1992-12-15|Method and device for manufacturing one-time casting molds
    US4804036A|1989-02-14|Electromagnetic exhaust valve for use in metal casting
    US2847736A|1958-08-19|Device for making sand molds for metal casting
    IL25431A|1969-07-30|Shaping bodies of fibrous cement
    SU749545A1|1980-07-23|Moulding machine pressing head
    SU549072A3|1977-02-28|The mechanism of prepressing casting machines
    JPS57200502A|1982-12-08|Vacuum powder molding method
    SU446348A1|1974-10-15|Sand head
    RU2219013C2|2003-12-20|Method of ramming molding sand
    SU447214A1|1974-10-25|Device for filling foundry mold tooling with molding sand
    SU759206A1|1980-08-30|Plant for producing casting moulds
    RU1828780C|1993-07-23|Facility for shell shaping
    SU823171A1|1981-04-23|Device for pressing articles from pulverulent materials
    US1120291A|1914-12-08|Clayware-press.
    SU579143A2|1977-11-05|Vibratory platform for shaping articles from concrete mortars
    SU897515A1|1982-01-15|Vibration table
    SU1572741A1|1990-06-23|Arrangement for consolidating granular mixtures
    同族专利:
    公开号 | 公开日
    GB1404052A|1975-08-28|
    DE2246189A1|1973-04-05|
    CA975130A|1975-09-30|
    JPS514938B2|1976-02-16|
    DK125828B|1973-05-14|
    DE2246189B2|1976-04-22|
    JPS4918719A|1974-02-19|
    NL7212853A|1973-03-27|
    ES406926A1|1975-09-16|
    CS190373B2|1979-05-31|
    DD100647A5|1973-10-05|
    FR2153298B1|1976-01-23|
    CH551237A|1974-07-15|
    FR2153298A1|1973-05-04|
    IT988399B|1975-04-10|
    BE788716A|1973-01-02|
    US3880223A|1975-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3274651A|1965-03-29|1966-09-27|Oliveira Fabio De Azevedo|Method for injecting sand in moulding machines|JPS5643779B2|1975-06-17|1981-10-15|
    US4437507A|1981-08-11|1984-03-20|Seeley Robert J|Molding machine|
    RU1780917C|1989-06-29|1992-12-15|Научно-Производственное Объединение Технологии Автомобильной Промышленности|Method and device for manufacturing one-time casting molds|
    CH682547A5|1990-04-20|1993-10-15|Fischer Ag Georg|Method and apparatus for compressing granular molding materials.|
    US6394185B1|2000-07-27|2002-05-28|Vernon George Constien|Product and process for coating wellbore screens|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DK465171AA|DK125828B|1971-09-23|1971-09-23|Method of operation of automatic mold part making machines and machine for use in this method.|
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