JPS6436127U - - Google Patents

Info

Publication number
JPS6436127U
JPS6436127U JP1987130737U JP13073787U JPS6436127U JP S6436127 U JPS6436127 U JP S6436127U JP 1987130737 U JP1987130737 U JP 1987130737U JP 13073787 U JP13073787 U JP 13073787U JP S6436127 U JPS6436127 U JP S6436127U
Authority
JP
Japan
Prior art keywords
screw
cylinder
diameter
section
valve mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1987130737U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987130737U priority Critical patent/JPS6436127U/ja
Publication of JPS6436127U publication Critical patent/JPS6436127U/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す縦断面図、第
２図は同上―線に沿つた拡大断面図、第３図
は第２図の―線に沿つた拡大断面図である。 １０……シリンダ、１２……スクリユ、１４…
…フライト、１７……圧縮・溶融部、１９……ロ
ーリング混練部、２０……バルブ機構部、２１…
…円弧状凸部、２２……円弧状凹溝、２４……径
大部、２５，２６……円錐状部、２７……流路。

Claims (1)

    【実用新案登録請求の範囲】
  1. シリンダ内に１本のスクリユが配設されたスク
    リユ式押出成形機において、該スクリユの圧縮・
    溶融部の前方部分にまたがつてローリング混練部
    が設けられると共に、該ローリング混練部の出口
    にはバルブ機構部が設けられ、前記ローリング混
    練部における螺旋状フライトを有するスクリユの
    谷径は押出側に行くにつれて徐々に径大に拡大形
    成されると共に、これと連なる前記バルブ機構部
    のスクリユの谷径は、前記フライトを含めたスク
    リユの外径と同一径の径大に形成されて、該径大
    部より押出側はその傾斜角度を拡大側よりも大き
    く、かつその長さを拡大側よりも短くして円錐状
    に縮小形成され、しかも径大部から円錐状部にか
    けてはフライトを除いて形成され、また、前記ロ
    ーリング混練部の全体に亘るシリンダの内周軸方
    向には、円弧状凸部を介して前記スクリユフライ
    トの数よりも多い複数の一定深さの円弧状凹溝が
    形成されると共に、これと連なる前記バルブ機構
    部のシリンダの内周には、前記スクリユの円錐状
    部に対応させてシリンダの内径まで縮小の円錐状
    部が形成され、該シリンダ円錐状部とスクリユ円
    錐状部との間の流路の勾配と間隙がスクリユとシ
    リンダとの軸方向への相対的な平行移動によつて
    調整可能となつている構成を特徴とするスクリユ
    式押出成形機。
JP1987130737U 1987-08-27 1987-08-27 Pending JPS6436127U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987130737U JPS6436127U (ja) 1987-08-27 1987-08-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987130737U JPS6436127U (ja) 1987-08-27 1987-08-27

Publications (1)

Publication Number Publication Date
JPS6436127U true JPS6436127U (ja) 1989-03-06

Family

ID=31386174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987130737U Pending JPS6436127U (ja) 1987-08-27 1987-08-27

Country Status (1)

Country Link
JP (1) JPS6436127U (ja)

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