• 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:
    1. DEVICE FOR INJECTION MOLDING BEZLITNIKOVOGO products from polymeric materials, comprising a cooled mold with sprues 4 and a nozzle for supplying a polymeric material vklyuchakeschee body 1 formed with a tapered portion 15 on the inner surface before the outlet and concentrically mounted for axial movement , a valve made in the form of a cylindrical element 2 with a tip 3 located in the cooled Gating channel 4 and associated with its surface, characterized by that, in order to increase the reliability of the device in the manufacture of products from integral foams, tip 3 is made with a stepped surface in the form of alternating cylindrical 10, 11, 20 and conical 12, 13 sections, while the end face 14 of the tip is made with a diameter less than the end 18 of the cylindrical element which is made with a conical sealing surface for engagement with the conical section 15 of the nozzle body 1. ® 2. The device according to claim 1, wherein the passageway for the polymeric material is formed by the surface of the cylindrical element 2 and the inner surface of the nozzle body 1. 4 Yu GO with
    公开号:SU1142299A1
    申请号:SU807771178
    申请日:1980-04-28
    公开日:1985-02-28
    发明作者:Христов Матеев Евгени；Петров Кръстев Цветан
    申请人:Нипки По Технология На Материалите (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to the processing of polymeric materials and can be used to make faceless products from integral peloplast. Closest to the present invention is a device for faceless molding of polymeric materials under pressure, comprising a mold with a cooled runner channel and a nozzle for feeding polymer material, comprising a body made with a conical section on the inner surface in front of the outlet orifice and concentrically mounted with the possibility of axial valve, made in the form of a cylindrical element with a tip located in the cooled Gating channel and associated with overhnostyu (Japanese Patent № 48- 38472, cl. 25/5 / C10, 1973). However, in the case of manufacturing products from integral foams, a large diameter of the inlet gate is required, and it is necessary to ensure intensive curing of the polymer material in the design cavity in the zone of the inlet gate. In the known device, the possibility of insufficient cooling of the polymeric material in this zone is not excluded, which leads to defects in the products. The purpose of the invention is to increase the quality of manufacturing products from integral thermoplastics. The goal is achieved by the fact that a device for die-casting molding of polymeric materials under pressure, comprising a mold with a cooled runner channel and a nozzle for feeding a polymeric material, comprising a housing made with a conical section on the inner surface in front of the outlet orifice and fitted concentrically with axial movement of the valve, made in the form of a cylindrical element with a tip located in the cooled Gating channel and associated with his ited according to the invention, the tip is formed with a stepped surface to form alternating cylindrical and conical portions, wherein the tip is formed with a diameter smaller than the end face of the cylindrical member, which is arranged conical sealing surface for engagement with a tapered portion of the inner surface of the nozzle body. In addition, the flow passage for the polymer material is formed by the surface of the cylindrical element and the inner surface of the nozzle body. FIG. 1 shows a device with a closed nozzle, a longitudinal section; FIG. 2 - the same, with an open nozzle; in fig. 3 shows section A-A in FIG. 1. The device comprises an injection mold 5 with a gating channel 4 cooled by channels 8, a nozzle for feeding a polymeric material, comprising a body 1, made with a conical section 15 on the inner surface, in front of the outlet orifice and concentrically mounted with axial movement of a valve the cylindrical element 2 with the tip 3, which is located in the cooled Gating channel 4 and is associated with its surface. The tip 3 is made with a stepped surface in the form of alternating cylindrical 10, 11, 20 and conical sections 12, 13, while the end face 14 of the tip 3 is made with a diameter less than the end 18 of the cylindrical element 2, which is made with a conical sealing surface to interact with the conical section 15 of the inner surface of the housing 1 nozzle. The passageway for the polymeric material is formed by the surface of the cylindrical element 2 and the inner surface of the nozzle body 1. Tip 3 can be made with at least one section with a hyperbolic or parabolic surface. The mold is in contact with the nozzle body 1, forming an annular cavity 16 between them. A heater 9 is installed on the outer side of the latter. The cylindrical element 2 is made with a cavity 17 to reduce the heating of the tip 3 with the polymer material 19 with the nozzle closed. The device works as follows. For injection of a polymer material into the injection mold, the valve is retracted from it and the melt passes through the inlet channel and the cooled gate 4 enters the design cavity, after the injection is completed, the valve moves to its original position, extruding the polymer material from the cooled gate 4 into the injection mold 5 and partly due to the conical seal UU e of the surface of the end 18 in the passage channel. Between the tip 3 and the inner surface of the cooled gating channel 4 there remains a thin layer 6 of polymeric material. The valve tip is relatively little heated during the short injection of the polymeric material, finds
    权利要求:
    Claims (2)
    [1]
    1. DEVICE FOR UNLIMINARY CASTING UNDER PRESSURE OF PRODUCTS OF POLYMERIC MATERIALS, containing an injection mold with a cooled gate channel 4 and a nozzle for supplying polymer material, including a housing 1 made with a conical section 15 on the inner surface in front of the outlet and concentrically mounted with axial pe relocation, a valve made in the form of a cylindrical element 2 with a tip 3 located in a cooled gate channel 4 and mating with its surface, characterized in that, with in order to increase the reliability of the device in the manufacture of products from integral foams, the tip 3 is made with a stepped surface in the form of alternating cylindrical 10, 11, 20 and conical 12, 13 sections, while the end face 14 of the tip is made with a diameter smaller than the end face 18 of the cylindrical element, which is made with conical sealing surface for interaction with the conical section 15 of the housing 1 of the nozzle.
    [2]
    2. The device according to π. 1, characterized in that the passage channel for the polymeric material is formed by the surface of the cylindrical element 2 and the inner surface of the nozzle body 1.
    SU .. „1142299 FIG
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1142299A1|1985-02-28|Device for gateless injection moulding of articles from polymeric materials
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    JPH07186203A|1995-07-25|Injection-molding die
    JPS585238A|1983-01-12|Fan gate type hot-runner mold
    同族专利:
    公开号 | 公开日
    SE435152B|1984-09-10|
    CH644549A5|1984-08-15|
    GB2048762A|1980-12-17|
    IT8048576D0|1980-05-05|
    ATA231180A|1983-07-15|
    US4306852A|1981-12-22|
    CS244503B1|1986-07-17|
    AT373823B|1984-02-27|
    GB2048762B|1984-03-07|
    DE3016702A1|1980-11-20|
    BG28748A1|1980-12-12|
    FR2455973B1|1985-03-01|
    FR2455973A1|1980-12-05|
    JPS5619737A|1981-02-24|
    SE8003390L|1980-11-08|
    IT1188933B|1988-01-28|
    引用文献:
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    DE2316281A1|1973-03-31|1974-10-17|Diamond Tool & Die Co|Injection moulding runner - for prodn of sprue free mouldings from new or modified tools|
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    DK138213C|1975-10-10|1981-11-16|E F Flygenring|
    CA1032318A|1976-10-12|1978-06-06|Jobst U. Gellert|Valve-gated injection molding mechanism|EP0047645B1|1980-09-05|1984-11-28|Matsushita Electric Industrial Co., Ltd.|A method of producing an information recording disk|
    DE3128347C2|1981-07-17|1990-05-03|Eugen Dipl.-Ing. 8877 Burtenbach De Buehler|
    DE3128348C2|1981-07-17|1990-02-08|Buehler, Eugen, Dipl.-Ing., 8877 Burtenbach, De|
    JPS6159219B2|1981-10-30|1986-12-15|Sei Tsutsumi|
    EP0106980A1|1982-09-24|1984-05-02|Jobst Ulrich Gellert|Injection molding core ring gate|
    US4443175A|1982-11-05|1984-04-17|Rose Robert H|Apparatus and method for runnerless transfer molding of thermoset compounds|
    WO1984002106A1|1982-11-22|1984-06-07|Richard J Shaw|Insulated sprue bushing in plastic molding apparatus|
    US4613385A|1984-08-06|1986-09-23|Regents Of The University Of California|High strength, low carbon, dual phase steel rods and wires and process for making same|
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    CA2358148A1|2001-10-03|2003-04-03|Mold-Masters Limited|A nozzle|
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    US7137807B2|2002-11-21|2006-11-21|Mold-Masters Limited|Hot runner nozzle with a tip, a tip surrounding piece and an alignment piece|
    CA2452112A1|2002-12-09|2004-06-09|Mold-Masters Limited|Nozzle tip and seal|
    JP2008246742A|2007-03-29|2008-10-16|Aisin Seiki Co Ltd|Mold nozzle structure for injection molding|
    US20090028984A1|2007-07-26|2009-01-29|Husky Injection Molding Systems Ltd.|Transition Channel For Use Between A First Conduit And A Second Conduit In A Molding System|
    CN104097300A|2014-05-14|2014-10-15|苏州好特斯模具有限公司|Glue sealing valve needle|
    CN104149284A|2014-07-31|2014-11-19|苏州市华宁机械制造有限公司|Large-water-gap cold runner and sprue system thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BG7943474A|BG28748A1|1979-05-07|1979-05-07|Apparatus for runnerless casting under presure of polymer articles|
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