• 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:
    A die formed of a series of concentric rings is disclosed. An outer body has a series of communication ports for the introduction of a heating medium. An inner body having the same axial thickness as the outer body is placed inside the outer and in the annular space defined between the inner and outer bodies a series of annular rings are placed. The annular rings each have a series of nozzles disposed in a circumferential ring and are formed with grooves on their outer walls to define jackets between the rings. The jackets are in communication with the communication ports to supply a heating medium to the jacket.
    公开号:SU990074A3
    申请号:SU782664498
    申请日:1978-09-12
    公开日:1983-01-15
    发明作者:Мизуно Харуюки；Идемото Ацуси；Хорие Кунихиро
    申请人:Дзе Джапэн Стил Воркс,Лтд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing of polymeric materials and can be used in extrusion equipment for forming granules of synthetic resin.
    The known head for extruding synthetic resin granules, comprising an outer cylinder, a hole for a resin extruded through nozzles, an annular inlet for the heating medium, spiral coils, means for supplying steam l.
    The disadvantage of the head is the complexity of its design, since it uses three types of heating: heating with a heat carrier, steam heating, and heating using coils. In addition, due to the different degrees of heating and a large number of elements, the heating is not uniform.
    Closest to the invention, the head for the extrusion of granules from a synthetic resin, containing an outer cylinder with a pair of channels passing through it and placed in the upper and lower parts of the coolant channel, the inner cylinder, pac-i
    placed annularly coaxially with the formations between them, the annular space in which the sleeve is placed, provided with circumference and axially extending nozzles and debris for the coolant connected to the coolant channels 21.
    In this head, the uniformity of heating of the nozzles can be ensured only with a small size and a small number of nozzles. With a large volume of the head and a large number of nozzles, they cannot be placed in one concentric ring, and if nozzles are located in several rows, the heating uniformity of all nozzles cannot be achieved by means of heat sinks located inside and outside the rows of nozzles. Thus, the known design of the head does not ensure uniform temperature of the nozzles, which results in the formation of granules of various sizes.
    权利要求:
    Claims (2)
    [1]
    The purpose of the invention is to improve the quality of the granules by ensuring uniform heating of the nozzles. This goal is achieved by the fact that in the head for the extrusion of granules made of synthetic resin, containing an outer cylinder with a pair of passes through it and placed in its upper and lower parts of the coolant, an inner cylinder located coaxially with the outer one to form an annular ring between them. the space in which the sleeve is located, provided with circumferentially disposed and axially extending nozzles and jackets for the coolant connected to the channels for the coolant, the sleeve is made in the form of mounted concentric annular elements, each having a nozzle located on one circle and at least one groove on the surface to form with the adjacent annular element nym shirts for heat transfer fluid, which are formed annular and disposed axially between the ring by the elements. In addition, the thickness of the inner cylinder is equal to the thickness of the outer cylinder. The annular elements are axially displaced relative to the outer and inner cylinders, and the head is provided with an annular manifold located between the outer and inner cylinders at the entrance to the nozzles. An additional groove is made on each ring element. The groove of one annular element is aligned with the groove of an adjacent annular element to form between them a jacket for heat exchanger. FIG. 1 shows a head for the extrusion of granules, a cross section of FIG. 2 shows section A-A in FIG. one; Fig. 3 shows a die for extrusion of a face to a longitudinal section. The extrusion head of synthetic resin granules contains an outer cylinder 1 with a pair of channels 2 and 3 passing through it and placed in the upper and lower parts of the channel 2 for the coolant from the peripheral surface of the outer cylinder 1 to the inner part. Fittings 4 and 5 with mounting flanges are provided in the annular portions of the channels 2 and 3. The inner cylinder 6 has a thickness equal to the thickness of the outer cylinder 1 and is located coaxially with the outer cylinder 1 to form an annular space between it. The latter houses a sleeve, made in the form of a series of concentrically mounted annular elements 7-9, each having circumferentially disposed nozzles 10 with a small diameter section 11 and at least one groove 12 or an additional groove on the surface to form adjacent ring element when combining the grooves 12 shirts 121 - 16 for the coolant, which are circular and are located in the axial direction between the ring-shaped elements 7 - 9. Rubachka 13 - 16 are connected to channels 2 and 3 for heat onositel The annular elements 7-9 have a thickness equal to the thickness of the outer 1 and inner 6 cylinders, and are installed with an axial displacement relative to the outer 1 and inner 6 cylinders, forming an annular manifold 17 between them located at the inlet to the nozzles 10. The head works as follows in a way. The molten resin is introduced into the annular manifold 17, and then into the nozzles 10 and cut with knives (not shown) at the exit of the sections 11 of the nozzles 10 into granules having the required size. At the same time, mediums 13–16 are fed through the nozzle 4 and channel 2 to heat the molten resin passing through the nozzles 10. Due to the arrangement of the annular scarves 13-16 between each annular row of nozzles, the desired uniformity of resin heating is baked. The heating medium (coolant) is discharged from the head through a channel 3 having a fitting 5. Each annular element 7, 8, 9 (Fig. 3) has a groove 12 in the peripheral part along the inner surface, and the outer cylinder 1 is made with a groove 18 along the inner part. The effect is the same as in the head shown in FIG. 2. A variant of the head is possible, where each ring element and the inner cylinder have grooves to form jackets for the coolant along the outer periphery of the inner part with the achievement of the same effect as in the described heads. The number of ring elements and, therefore, the number of rows of co-; The pel is not limited to a specific option and can be almost anything. In the pellet extrusion head, the temperature of the molten resin is kept constant, because the molten resin inside the nozzles is uniformly heated by shirts adjacent to each row of nozzles. Local non-uniform temperature fluctuations are eliminated, thereby preventing the freezing of the slime and ensuring the ps-emission of granules of the same size. In addition, shirts for heat transfer media are not drilled into the part, but grooves along the outer and / or inner surfaces of the ring elements, which considerably simplifies the process of manufacturing the head, and also reduces the distance between the annular rows of nozzles, contributing to a better heat the molten resin. The dimensions of the head could be reduced in comparison with the known structures. In addition, the head is reliable and does not deform in work. Invention 1. A head for extrusion of synthetic resin granules, containing an outer cylinder with a pair of passage:; channels through it and placed in the upper Neu and lower parts of it for the coolant, the inner cylinder / located coaxially outer with the formation between them of the annular space in which is placed in the tip, provided with circumferentially placed and axially extending nozzles and jackets for the heat transfer fluid communicated with the channels The heater is characterized in that, in order to improve the quality of the granules by ensuring uniformity of the heating of the nozzles, the sleeve is made as a series of concentrically mounted ring elements each having nozzles along one circumference and forming an adjacent annular element of the jacket for the coolant, which is made annular and located in the axial direction between the annular elements. 2. The head according to claim 1, characterized in that the thickness of the inner cylinder is chosen to be equal to the thickness of the outer cylinder. 3. The head according to claim 2, characterized in that the annular elements are displaced axially relative to the outer and inner cylinders, and the head is provided with an annular manifold, 4 times less between the outer and inner cylinders at the inlet s. Nozzle 4. The head according to claim 1 , characterized in that an additional groove is made on each ring member. 5. The head of clause 4, that is, that the groove of one ring element is combined with the groove of the adjacent ring zipper to form a jacket between them for the heat carrier. Sources of information taken into account in the examination 1. US patent 30294 € 6, cl. 425-313, published. 1962.
    [2]
    2. Authors certificate of the USSR 447290, cl. B 29 B 1/02, 1972 prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    DE2839552A1|1979-03-22|
    DE2839552B2|1980-07-17|
    GB2004228A|1979-03-28|
    DE2839552C3|1981-03-19|
    US4187067A|1980-02-05|
    GB2004228B|1982-05-19|
    JPS5443265A|1979-04-05|
    FR2402530A1|1979-04-06|
    JPS553124B2|1980-01-23|
    FR2402530B1|1981-12-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2535223C1|2013-06-18|2014-12-10|Николай Евгеньевич Староверов|Method of thermoforming of composite products /versions/ and device for thereof realisation /versions/|US3029466A|1956-03-09|1962-04-17|Union Carbide Corp|Liquid phase pelleter|
    US3323170A|1965-06-01|1967-06-06|Black Clawson Co|Plastic pelletizers|
    US3452934A|1966-09-28|1969-07-01|Thiokol Chemical Corp|Fluid injectors|
    US3452394A|1966-10-31|1969-07-01|Andale Co|Extruder heads|
    US3492716A|1968-09-20|1970-02-03|Andale Co|Production of extruder heads|
    US3553776A|1968-09-23|1971-01-12|Black Clawson Co|Pelletizer die plate|
    DE2345049A1|1973-09-06|1975-03-20|Breyer Anton Fa|Thermoplastic laminates from plastics of differing props. - by heating different plastics in separate thermally insulated channels|US4300877A|1979-01-10|1981-11-17|Sterling Extruder Corp.|Underwater pelletizer|
    FR2467067B1|1979-10-15|1981-09-18|Ceraver|
    DE3019232A1|1980-05-20|1981-11-26|Bayer Ag, 5090 Leverkusen|GRANULAR POWDER AGGLOMERATES AND A METHOD FOR THE PRODUCTION THEREOF|
    JPS57141947U|1981-02-28|1982-09-06|
    US4564350A|1982-06-10|1986-01-14|Thomas R. Vigil|Plastic extruder assembly|
    ZA85184B|1984-01-09|1985-08-28|Union Carbide Corp|Extrusion die head assembly for plastic pelletizers|
    JPS6123065U|1984-07-16|1986-02-10|
    JPS6229356U|1985-08-07|1987-02-21|
    JP2714585B2|1986-07-23|1998-02-16|セイコープレシジョン株式会社|Work ejection device|
    JPH0699066B2|1988-02-06|1994-12-07|橋本電機工業株式会社|Long horizontal stripping veneer deposition device|
    JPH01140376U|1988-03-22|1989-09-26|
    DE3809735C1|1988-03-23|1989-06-08|Werner & Pfleiderer Gmbh, 7000 Stuttgart, De|
    JP2828601B2|1994-11-18|1998-11-25|株式会社日本製鋼所|Granulating dies for synthetic resin and method for producing the same|
    US6474969B1|2000-10-27|2002-11-05|Tds Technologies Inc.|Extrusion die and die assembly for underwater pelletizer|
    JP5650373B2|2007-08-23|2015-01-07|日清紡ホールディングス株式会社|Method for manufacturing fluid processing carrier|
    JP5309191B2|2011-06-20|2013-10-09|株式会社日本製鋼所|Resin granulation die plate|
    RU2503537C1|2012-05-30|2014-01-10|Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет им. Д.И. Менделеева"|Pelletising screw extruder for forming catalysts masses|
    RU2510745C2|2012-07-09|2014-04-10|Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет им. Д.И. Менделеева |Pelletising screw extruder|
    JP2014069525A|2012-10-01|2014-04-21|Japan Steel Works Ltd:The|Die plate for resin granulation|
    RU2600763C2|2014-04-22|2016-10-27|Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет имени Д.И. Менделеева "|Pelletizing screw extruder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP10948177A|JPS553124B2|1977-09-13|1977-09-13|
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