JPS6164429U - - Google Patents

Info

Publication number
JPS6164429U
JPS6164429U JP1984145570U JP14557084U JPS6164429U JP S6164429 U JPS6164429 U JP S6164429U JP 1984145570 U JP1984145570 U JP 1984145570U JP 14557084 U JP14557084 U JP 14557084U JP S6164429 U JPS6164429 U JP S6164429U
Authority
JP
Japan
Prior art keywords
flight
groove
section
grooves
melting
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.)
Granted
Application number
JP1984145570U
Other languages
Japanese (ja)
Other versions
JPH018350Y2 (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 JP1984145570U priority Critical patent/JPH018350Y2/ja
Publication of JPS6164429U publication Critical patent/JPS6164429U/ja
Application granted granted Critical
Publication of JPH018350Y2 publication Critical patent/JPH018350Y2/ja
Expired 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
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/655—Screws with two or more threads having three or more threads
    • 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
    • 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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis

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】[Brief explanation of the drawing]

図面は本考案の実施例を示しており、第１図は
要部の一部断面正面図、第２図は全体の一部断面
正面図である。 １…スクリユ、２…シリンダ、３…ホツパ、４
…押出機、６…供給部、７…第１溶融部、８…接
続部、９…第２溶融部、Ａ…主フライト、Ｂ…溝
副フライト、Ｃ…フルフライト、Ｄ…偏心フライ
ト、Ｅ…偏心フライト、ＧＭ…溶融材料用溝、Ｇ
Ｓ…未溶融材料用溝、ＧＡ，ＧＤ，ＧＥ…条溝、
ＧＦ…フルフライト溝、Ｍ…溶融材料、Ｓ…未溶
融材料。 The drawings show an embodiment of the present invention, with FIG. 1 being a partially sectional front view of the main part, and FIG. 2 being a partially sectional front view of the whole. 1... Screw, 2... Cylinder, 3... Hopper, 4
...Extruder, 6...Feeding section, 7...First melting section, 8...Connecting section, 9...Second melting section, A...Main flight, B...Groove sub-flight, C...Full flight, D...Eccentric flight, E ...Eccentric flight, GM...Groove for molten material, G
S...Groove for unmelted material, GA, GD, GE...Groove,
GF...Full flight groove, M...Melted material, S...Unmelted material.

Claims (1)

【実用新案登録請求の範囲】 主フライトとそれより僅小径の副フライトとの
間に、主フライト前面側に漸次深くなる溶融材料
用溝と、副フライト前面側に漸次浅くなると共に
前記溶融材料用溝より巾広の未溶融材料用溝とを
形成した第１溶融部を有する高分子材料押出用ス
クリユにおいて、 前記スクリユの第１溶融部の前方に接続部を介
して第２溶融部が一体成形されており、この第２
溶融部は主フライトとフライト高さが一定長さご
とに漸減及び漸増を繰り返す少なくとも１条の偏
心フライトとが形成され、これら両フライトの間
には少なくとも２条の溝が形成され、その内の１
条溝は溝深さが偏心フライトの位相に対応して増
減し且つ他の条溝は溝深が前記条溝と位相がずれ
て増減すべく形成されており、前記接続部は第１
、第２溶融部の各主フライトと連続するフルフラ
イトと、第１溶接部から送られてくる溶融及び未
溶融材料を混合しながら第２溶融部の全条溝へ供
給すべく各溶融部の単位容積より大きい単位容積
の溝とが形成されていることを特徴とする高分子
材料押出用スクリユ。[Claims for Utility Model Registration] Between the main flight and the sub-flight with a slightly smaller diameter, there is a groove for the molten material that gradually becomes deeper toward the front side of the main flight, and a groove that gradually becomes shallower toward the front side of the auxiliary flight for the molten material. In a screw for extruding a polymeric material having a first melting section formed with a groove for unmelted material that is wider than the groove, a second melting section is integrally molded in front of the first melting section of the screw via a connecting section. This second
In the melting part, a main flight and at least one eccentric flight whose flight height repeats gradual decrease and increase at regular intervals are formed, and at least two grooves are formed between these two flights. 1
The grooves are formed so that the groove depth increases or decreases in accordance with the phase of the eccentric flight, and the other grooves are formed so that the groove depths increase or decrease out of phase with the grooves, and the connecting portion is formed in the first groove.
, a full flight continuous with each main flight of the second welding section, and a full flight of each welding section in order to mix the molten and unmelted material sent from the first welding section and supply it to the entire groove of the second welding section. 1. A screw for extruding a polymeric material, characterized in that a groove having a unit volume larger than a unit volume is formed.
JP1984145570U 1984-09-25 1984-09-25 Expired JPH018350Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984145570U JPH018350Y2 (en) 1984-09-25 1984-09-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984145570U JPH018350Y2 (en) 1984-09-25 1984-09-25

Publications (2)

Publication Number Publication Date
JPS6164429U true JPS6164429U (en) 1986-05-01
JPH018350Y2 JPH018350Y2 (en) 1989-03-06

Family

ID=30703824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984145570U Expired JPH018350Y2 (en) 1984-09-25 1984-09-25

Country Status (1)

Country Link
JP (1) JPH018350Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003103927A1 (en) * 2002-06-05 2003-12-18 株式会社ブリヂストン Screw for extruder and method of manufacturing the extruder, and rubber member for tire and method of manufacturing the rubber member
KR100827251B1 (en) 2007-07-11 2008-05-07 주식회사 우진세렉스 Screw of injection machine
JP2013091170A (en) * 2011-10-24 2013-05-16 Yamashiro Seiki Seisakusho:Kk Double flight screw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003103927A1 (en) * 2002-06-05 2003-12-18 株式会社ブリヂストン Screw for extruder and method of manufacturing the extruder, and rubber member for tire and method of manufacturing the rubber member
KR100827251B1 (en) 2007-07-11 2008-05-07 주식회사 우진세렉스 Screw of injection machine
JP2013091170A (en) * 2011-10-24 2013-05-16 Yamashiro Seiki Seisakusho:Kk Double flight screw

Also Published As

Publication number Publication date
JPH018350Y2 (en) 1989-03-06

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