• 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:
    Method and device for pressurizing the inner surface of a molded cylindrical article by the step of pressurizing and forming the inner surface of the article while rotating a pressing unit (6a) of pressurizing means (6) relative to a molded article (2) during a period of time which begins immediately after completion of solidification of the article ready for pressurizing and forming, and which continues until the transition temperature of the article has been reached the temperature at which the tensile strength and elongation of the article undergo an abrupt charge. This is performed in order to pressurize and cause the collapse of blowholes and air bubbles in the molded article, and to harden the inner surface thereof.
    公开号:SU1269735A3
    申请号:SU802977951
    申请日:1980-08-18
    公开日:1986-11-07
    发明作者:Такесита Кимио；Миягаки Мориюки；Амаказу Тосинари；Угата Кен；Накаиси Масао
    申请人:Кубота, Лтд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to foundry.
    FIG. 1 shows a vertical section of a centrifugal machine or casting with a general view of an installation for treating the inner surface of a molded workpiece; in fig. 2 is a view A of FIG. 1J in FIG. 3 — a clamping mechanism, a slit.
    The centrifugal machine comprises izbodynitsa 1, drive rollers 2, electric motor 3j drive means 4,
    The apparatus for treating the inner surface of the cast billet comprises a rod 5 with a head 6, a pressing mechanism 7, a hydraulic cylinder & the rod 9 of which is connected to the priming mechanism 7. The hydraulic cylinder 10 is fixed on the clamping mechanism 7 located on the rails 11. The rod 12 of the hydraulic cylinder 10 is located inside the rod 5. At the end of the rod 12 there is a conical part 13. Three rollers 14 are located at equal distance around the circumference heads. Each of them has an axis of rotation parallel to the axis of the rod 12, it is possible to use one roller, the Primer 15 is attached at one end to the head 6 with a nut, and the other end enters the hole in the conical part 13 of the rod 12. The rollers 14 are fixed to rotate freely on the supporting shafts 16, reinforced on the yokes 17.
    Each of the sleeves 17 has the ability to slide in the radial direction of the stem 12. The sleeves 17 have a cam surface 18. The rollers 14 are shaped, having a flat surface 19 of small width in its central part and on both sides inclined surfaces 20. The rollers have in the central part convex shape.
    The central part of the surface of the small width rollers makes it possible to increase the force on the inner surface of the product.
    The springs 21 are located between the head 6 and the clips 17 and are designed to return the clips to their original position. The dry tool 22 is designed to clean the inner surface of the cast and is attached to the end of the head 6.
    The installation works as follows.
    First, molten metal is poured into a mold 1 and a tubular molded product is produced by centrifugal casting. Then the head 6 is introduced into the internal cavity of the tubular molded product. Immediately upon completion of the solidification of the tubular molded product, the hydraulic cylinder 10 is actuated. Stem 12
    the conical part 13 extends and, at its end, causes the sleeves 17 of the rollers 14 to move towards the inner surface of said molded product. Each roller 14 produces a seal pressure of the inner surface of the tubular cast product,
    LIAH.
    All this happens at a time when the metal mold rotates continuously, and the rollers 14 are pressurized with free rotation.
    By means of the hydraulic cylinder 8, the clamping mechanism 7 moves along the rails 11, while the head 6 moves along the axis of the tubular molded product and acts on the inner surface of the tubular product.
    If the inner surface is cleaned before compaction, the inner diameter of the tubular molded product may be the same, and thus the subsequent treatment of the inner surface with the help of rollers 14 will be the same across the entire surface, and this makes it possible to obtain a tubular molded product of higher quality. If the purification step is carried out after compaction with pressure, the inner diameter of the tubular cast product of the desired size can be obtained. In addition, with the initial cleaning of the inner surface, subsequent compaction with pressure and re-cleaning, you can get the benefits mentioned.
    权利要求:
    Claims (3)
    [1]
    1. Installation for treating the inner surface of a tubular casting billet containing a rod with a head and a pressing mechanism, characterized in that it is provided with a hydraulic cylinder, the end of the stem of which is made conical, clips ;, installed with equal spacing in the head above the conical part of the stem placed in the cavity made in the rod, rollers, each of which is installed freely on the axis in the corresponding holder, while the surface of the holder, facing the conical part of the rod, is made with the same horse Nost.
    [2]
    2. The installation according to claim 1, characterized in that it is provided with three clips with rollers.
    [3]
    3. The installation of claim 1, wherein the surface of the roller is made flat in the central part and inclined in the side parts. 4o The installation according to claim 1, about tl and that the central surface of the rollers has a convex shape. 5. Installation according to claim 1, characterized in that the clips are spring-loaded relative to the head. 6. The installation according to claim 1, characterized in that it is provided with a device for moving the adjoining multi-mechanism. 7. Installation by. 6, that the device for moving the pressing mechanism is made in the form of an oil hydraulic cylinder, the rod of which is connected with the pressing mechanism.
    类似技术:
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    US5660223A|1997-08-26|Vertical die casting press with indexing shot sleeves
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    US3821980A|1974-07-02|Apparatus for automatically stripping a sectionalized mold from a cast
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    SU374113A1|1973-03-20|DEVICE FOR THE FORMATION OF THE STRUCTURE IN THE EMPTY BLAKES PREPARED IN THE CAMERA MACHINE CAMERA
    US4383967A|1983-05-17|Automatic finishing chip process
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    SU1580478A1|1990-07-23|Method of machining contact surface of electric machine brushes and device for effecting same
    RU34104U1|2003-11-27|Centrifugal casting machine
    SU766740A1|1980-09-30|Centrifugal cast iron pipe-making machine
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    DE392403C|1924-03-20|Machine for the production of pipes u. Like. By centrifugal casting
    SU944773A1|1982-07-23|Centrifugal casting method
    US1938231A|1933-12-05|Pipe making machine
    US3382309A|1968-05-07|Method and apparatus for forming an end profile on asbestos-cement pipe
    US1058250A|1913-04-08|Process of treating, molding, and casting materials and apparatus therefor.
    JP2767571B2|1998-06-18|Anchor plate vacuum cleaner
    SU399381A1|1973-10-03|INSTALLATION FOR FORMING EMPTY PRODUCTS
    JPH06101771A|1994-04-12|Rotary valve
    SU709220A1|1980-01-15|Apparatus for beading-in cylindrical articles
    SU469532A1|1975-05-05|Bell rod
    同族专利:
    公开号 | 公开日
    GB2048743B|1983-03-09|
    BR7908953A|1981-08-04|
    DE2953434A1|1980-06-26|
    WO1980001257A1|1980-06-26|
    GB2048743A|1980-12-17|
    NL178945B|1986-01-16|
    EP0028653B1|1984-07-04|
    EP0028653A1|1981-05-20|
    JPS5584265A|1980-06-25|
    NL7920183A|1980-10-31|
    DE2953434C2|1982-02-04|
    EP0028653A4|1981-05-15|
    NL178945C|1986-06-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE190089C|
    DE202271C|
    FR578656A|1924-03-14|1924-10-02|Method and apparatus for making solid products or objects using one or more liquid or plastic materials|
    US1717720A|1926-09-27|1929-06-18|William M Martin|Reconditioning metal mold|
    US2178163A|1936-10-31|1939-10-31|Arthur C Davidson|Method of and apparatus for centrifugally casting metals|
    DE750924C|1942-03-03|1945-01-31|Process for the production of metal centrifugal cast hollow bodies|
    US3259975A|1963-12-19|1966-07-12|Combustion Eng|Tube manufacture|
    JPS5211658B2|1973-09-03|1977-04-01|JPH0553759U|1991-12-27|1993-07-20|エヌ・オー・ケー・メグラスティック株式会社|Casting equipment|
    DE19823728A1|1998-05-27|1999-12-09|Fuerstlich Hohenzollernsche We|Method for producing a metallic composite body and composite body|
    FR2874979B1|2004-09-03|2008-02-08|Gianfranco Passoni|METHOD AND DEVICE FOR MANUFACTURING A MECHANICAL PIECE, IN PARTICULAR A BEARING RING, AND PART OBTAINED ACCORDING TO SAID METHOD|
    CN107876723B|2017-10-30|2019-12-31|象山信基机械厂|Centrifugal casting device|
    CN109590444B|2019-01-07|2020-12-01|肇庆华信高精密机械有限公司|Centrifugal casting equipment for hydraulic cylinder body|
    CN112775406A|2020-12-25|2021-05-11|青岛联合智造科技有限公司|Automatic casting machine for pipeline|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP15892778A|JPS5584265A|1978-12-19|1978-12-19|Pressure molding method for bore surface of cylindrical casting|
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