• 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:

    公开号:SU967266A3
    申请号:SU782696352
    申请日:1978-12-05
    公开日:1982-10-15
    发明作者:Юбер Ги；Гизелинк Филипп
    申请人:Солвей Э Ко.(Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of plastics, and in particular to methods for producing hollow articles with a partially molded neck made of thermoplastic material. 5
    The closest to the proposed method is the production of hollow articles with the molded part of thermoplastic neck materi- _ ala, comprising the steps of fixing the neck · article in the blow mold, blow molding using insulating tube blank inner portion from the remainder of the preform and blow the blank by using vegetable 5 gas to the final product dimensions [lj.
    The disadvantage of this method is the low quality of the products due to the possibility of deformation 20 of the partially molded neck when the product is inflated.
    The aim of the invention is to improve the quality of products.
    To achieve this goal, according to the method, including the operation of fixing the neck of the product in the blow mold, isolation with the help of a blow nozzle of the inner part. 2 ka of the workpiece, concluded between the pipe and the molded part of the neck of the workpiece from the rest of the workpiece, and blowing the workpiece with expanding gas to the final dimensions of the product, the isolated area is cooled by washing with a cooling agent, using gas or liquid as the cooling agent.
    As - a cooling agent, you can use the gas used to inflate the blanks, cooling is carried out during the blowing of the blanks.
    In addition, the cooling is stopped at the time of the start of the operation for the final blowing of the hollow body. '
    With this method, the molded part of the neck is quickly cooled, which eliminates its deformation during the final inflating of the workpiece.
    Figure 1 schematically shows a device for performing the proposed method for producing hollow products with a partially molded neck made of thermoplastic material;
    figure 2 - the neck of the vessel obtained without its cooling. The device comprises a mold 1, a blow nozzle in the form of a piston 2 for longitudinal tension of the workpiece with a channel 3 for supplying gas, and a calibration ring 4 with a channel 5 for supplying a cooling agent. Form 1 contains an annular cavity b.
    The method is as follows. YU
    The hollow billet 7 with a partially molded neck, which contains an annular protrusion 8, is fixed in the blow mold 1 so that * the annular protrusion 8 is located in the annular cavity 6 of the mold 1. Then, with the help of the blow nozzle of the inner section, the blank 7 is insulated between the nozzle and molded part of the neck of the workpiece 7.
    Immediately after the nozzle is introduced into the <billet, the isolated section is cooled by washing with a cooling agent, which can be either liquid or gas 25 used to inflate the billets. The cooling agent is supplied through the channel 5 of the ring 4. The cooling agent can freely exit through the annular space limited by the 30 open end of the workpiece and the blow pipe. Next, the blank is blown with gas. Cooling is carried out during the blowing of the workpiece. The time interval between cooling 35 and blowing typically exceeds one second. For rapidly cooled products, cooling is stopped at the time the operation for the final blowing of the hollow body begins. 40
    After inflation, the mold 1 is opened and the product is removed. Figure 2 shows that when eliminating cooling operations, most products have an annular neck with deformation, which reduces the quality of the products.
    Using the proposed method for producing hollow products with a partially molded neck made of thermoplastic material improves the quality of the products.
    权利要求:
    Claims (6)
    [1]
    The invention relates to the processing of plastics, and in particular to methods for the production of HOLLOW parts with a partially molded neck of a thermoplastic material. Closest to the present invention is a method for producing hollow articles with a partially molded neck of a thermoplastic material, comprising fixing the neck of the product in a sensible form of insulation using the blown pipe of the inner section of the billet from the rest of the billet by blowing the billet using expanding gas to the final dimensions of the product 13. The disadvantage of this method is the low quality of the products due to the possibility of deformation of the partially molded neck article. The chain of the invention is to improve the quality of the products. In order to achieve this goal, according to the method, including the operation of fixing the neck of the product in blown form, isolating the internal part of the billet between the branch pipe and the molded part of the bore of the billet from the rest of the billet, and blowing the billet using expanding gas to the final dimensions of the product are cooled by isolating the site with an omyban: cooling agent, while using gas or liquid as the cooling agent. As a cooling agent, it is possible to use the gas used for blowing up the blanks, the cooling is carried out during the blowing of the blanks. In addition, the cooling is stopped at the time of the start of the operation for the final blowing of the HULL BODY. With this implementation of the method, the molded part of the neck is rapidly cooled; ts, which excludes its deformation during the final expansion of the preform. Fig. 1 schematically shows a device for carrying out the proposed method for producing hollow articles with a partially molded neck of a thermoplastic material; Fig. 2 shows the neck of the vessel obtained without cooling it. The device comprises a mold 1, a blowing nozzle and a piston 2 for stretching the blank with a channel 3 for supplying gas and a calibration ring 4 with a channel 5 for half a cooling agent. Form 1 contains an annular cavity 6. is carried out as follows. Floor billet 7 with a partially molded neck, which contains a ring. the protrusion 8 is fixed in the airborne mold 1 so that the annular protrusion 8 is located in the annular cavity 6 of the mold 1. Then, the preform 7, which is enclosed between the nozzle and the molded part of the neck of the preform 7, is insulated with the help of the internal nozzle. inserting the nozzle into the preform is performed by cooling the isolated section by washing with a cooling agent, which may be liquid or gas used to blow the preforms. The cooling agent is fed through the channel 5 of the ring 4. The cooling agent can freely exit through the annular space bounded by the open end of the billet and the blowing nozzle. Next, the gas is blown once. The cooling takes place during the blowing of the workpiece. The time interval between cooling and blowing usually exceeds one second. For rapidly cooled products, cooling is stopped at the time of the start of the operation for the final blowing of a hollow body. After inflation, Form 1 is opened and the product is removed. Figure 2 shows that when a cooling operation is eliminated, most products have an annular neck with deformation, which reduces the quality of the products. Using the proposed method for producing hollow articles with a partially molded neck of a thermoplastic material allows improving the quality of the products. Claim 1. Instruction for producing hollow articles with partially molded throat. the fault of the thermoplastic material ". including the operation of fixing the neck of the product in blown form, polishing with the help of the blow pipe of the inner part of the workpiece enclosed between the pipe and the molded part of the neck of the workpiece from the rest of the workpiece, and blowing the workpiece with the help of expansion gas to the final size of the product I distinguish it from the fact that, in order to improve the quality of the product, the isolated section is cooled by washing with a cooling agent.
    [2]
    2. Method POP.1, I differ by the fact that gas is used as a cooling agent.
    [3]
    3. Method POP1, characterized in that as a cooling agent pnkrst is used,
    [4]
    4. Method according to Claims 1 and 2, which is intended in that the gas used for blowing the blanks is used as a cooling agent.
    [5]
    5. The method according to claims 1-4, from the first and the second, and the fact that the cooling is carried out during the blowing-up of the preform.
    [6]
    6. The method according to claims 1-4, that is, that the cooling is stopped at the moment of the start of the operation for the final blowing of the hollow body. . Sources of information taken into account in the examination 1. US patent 3,422,174, cl. 264-96, 1969 (prototype).
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    US3410937A|1968-11-12|Manufacturing thermoplastic articles
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    JPS60120031A|1985-06-27|Blow molding method and molding die thereof
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    US3412187A|1968-11-19|Method for forming plastic articles
    同族专利:
    公开号 | 公开日
    AU519907B2|1982-01-07|
    FI68557B|1985-06-28|
    EP0002302A1|1979-06-13|
    DK155038B|1989-01-30|
    NO153597B|1986-01-13|
    FI783601A|1979-06-06|
    IE47895B1|1984-07-11|
    FI68557C|1985-10-10|
    FR2410548B1|1980-08-22|
    FR2410548A1|1979-06-29|
    US4221759A|1980-09-09|
    PT68818A|1978-12-01|
    AU4171378A|1979-06-14|
    ATA869078A|1985-06-15|
    DE2862348D1|1983-12-29|
    DK533578A|1979-06-06|
    IT1101380B|1985-09-28|
    BR7807969A|1979-07-31|
    CA1116361A|1982-01-19|
    ES475673A1|1979-04-01|
    NO153597C|1986-05-21|
    IT7830551D0|1978-12-05|
    JPS5486561A|1979-07-10|
    IE782401L|1979-06-05|
    AT379547B|1986-01-27|
    EP0002302B1|1983-11-23|
    DK155038C|1989-06-26|
    MX150078A|1984-03-13|
    ZA786377B|1979-10-31|
    NO783881L|1979-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1461849C3|1951-01-28|1974-05-22|Pmd Entwicklungswerk Fuer Kunststoffmaschinen Gmbh & Co. Kg, 7505 Ettlingen|
    DE1259090B|1958-12-19|1968-01-18|Fischer Maschf Johann|Method and device for producing hollow bodies from thermoplastic material|
    US3048889A|1959-03-10|1962-08-14|Fischer Stefan|Process and apparatus for forming hollow objects|
    US3114596A|1961-10-19|1963-12-17|Union Carbide Corp|Direct neck cooling during blow molding|
    DE1479200A1|1964-07-22|1969-05-29|Rainer Fischer|Method and device for producing bottles from thermoformable plastic and for separating off squeezed-off material|
    US3502758A|1965-11-09|1970-03-24|Tenneco Chem|Production of blow moulded articles|
    CA960818A|1970-02-19|1975-01-14|Bryant Edwards|Non-nestable container|
    FR2119922B1|1970-12-30|1975-07-18|Illinois Tool Works|
    US3717429A|1971-01-04|1973-02-20|Phillips Petroleum Co|Apparatus for cooling the blow pin and plastic molding material during blow molding operation|
    US3767747A|1971-01-04|1973-10-23|Owens Illinois Inc|Method for blow molding|
    US3969060A|1971-08-20|1976-07-13|Heidenreich & Harbeck Zweingniederlassung Der Gildemeister Ag|Apparatus for deforming a tubular slug of thermoplastic material|
    GB1400763A|1971-08-20|1975-07-23|Heidenreich & Harbeck Gmbh|Method of and apparatus for deforming a tubular slug of thermo plastic material|
    SE407179B|1977-01-25|1979-03-19|Aga Ab|DEVICE FOR MANUFACTURE OF PLASTIC CONTAINERS BY INFLATION BY GASES, OF WHICH ATMINSTONE IS DEEP COLD|FR2656823B1|1990-01-09|1992-06-12|Kerplas Snc|PUNCH FOR INJECTION-BLOWING A HOLLOW BODY AND MACHINE USING SUCH A PUNCH.|
    DK0662037T3|1992-09-22|2000-10-02|Pepsico Inc|Blanket, methods and device for blow molding|
    US6221305B1|1998-11-23|2001-04-24|Milacron Inc.|Compression molded neck body with smooth inner wall|
    US7550105B2|2005-02-23|2009-06-23|Access Business Group International Llc|Apparatus and method for strengthening blow molded articles|
    JP6730164B2|2016-10-31|2020-07-29|株式会社吉野工業所|Liquid blow molding apparatus and liquid blow molding method|
    CN109702993A|2019-02-15|2019-05-03|马革|A kind of scavenger system and its blowing process of blow moulding machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7736798A|FR2410548B1|1977-12-05|1977-12-05|
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