JPH0457176B2 - - Google Patents

Info

Publication number
JPH0457176B2
JPH0457176B2 JP62110890A JP11089087A JPH0457176B2 JP H0457176 B2 JPH0457176 B2 JP H0457176B2 JP 62110890 A JP62110890 A JP 62110890A JP 11089087 A JP11089087 A JP 11089087A JP H0457176 B2 JPH0457176 B2 JP H0457176B2
Authority
JP
Japan
Prior art keywords
screw
plasticizing
tip
blocking ring
front face
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.)
Expired - Lifetime
Application number
JP62110890A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62271720A (ja
Inventor
Kurepusaa Ruudorufu
Kamu Yaakopu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Netstal Maschinen AG
Original Assignee
Maschinenfabrik und Giesserei Netstal AG
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 by Maschinenfabrik und Giesserei Netstal AG filed Critical Maschinenfabrik und Giesserei Netstal AG
Publication of JPS62271720A publication Critical patent/JPS62271720A/ja
Publication of JPH0457176B2 publication Critical patent/JPH0457176B2/ja
Granted 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return devices
    • 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
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP62110890A 1986-05-13 1987-05-08 逆流防止弁を有する合成樹脂射出機械の可塑化及び射出ユニット Granted JPS62271720A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1939/86A CH670065A5 (enrdf_load_stackoverflow) 1986-05-13 1986-05-13
CH01939/86-5 1986-05-13

Publications (2)

Publication Number Publication Date
JPS62271720A JPS62271720A (ja) 1987-11-26
JPH0457176B2 true JPH0457176B2 (enrdf_load_stackoverflow) 1992-09-10

Family

ID=4222129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62110890A Granted JPS62271720A (ja) 1986-05-13 1987-05-08 逆流防止弁を有する合成樹脂射出機械の可塑化及び射出ユニット

Country Status (6)

Country Link
JP (1) JPS62271720A (enrdf_load_stackoverflow)
CN (1) CN87103685A (enrdf_load_stackoverflow)
CH (1) CH670065A5 (enrdf_load_stackoverflow)
DE (1) DE3711775A1 (enrdf_load_stackoverflow)
FR (1) FR2598651A1 (enrdf_load_stackoverflow)
IT (1) IT1204566B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3076099B2 (ja) * 1991-09-03 2000-08-14 住友重機械プラスチックマシナリー株式会社 スクリュヘッド構造体
DE19517807B4 (de) * 1995-05-15 2004-06-09 Potthoff, Rüdiger Dreiteilige Rückstromsperre für thermoplastische Kunststoffe
DE19849472C2 (de) * 1998-10-21 2002-11-28 Demag Ergotech Gmbh Rückströmsperre für die Plastifizier- und Einspritzschnecke in Spritzgießmaschinen
CN100371154C (zh) * 2004-11-04 2008-02-27 湖北工业大学 内循环可控剪切密炼方法和装置
AT16962U1 (enrdf_load_stackoverflow) * 2019-04-25 2021-01-15 Engel Austria Gmbh
JP2023115453A (ja) * 2022-02-08 2023-08-21 株式会社日本製鋼所 逆流防止装置、スクリュ、および射出成形機
AT18310U1 (de) 2023-09-14 2024-09-15 Engel Austria Gmbh Rückstromsperre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1921058A1 (de) * 1969-04-25 1970-11-05 R H Windsor Ltd Frankfurt M Gm Rueckstromsperre fuer Schnecken-Spritzgussmaschinen
DE2946683A1 (de) * 1979-11-20 1981-05-27 Mannesmann Demag Kunstofftechnik Zweigniederlassung der Mannesmann Demag AG, 8500 Nürnberg Rueckstroemsperre fuer schneckenspritzgiessmaschinen
DE3142756C2 (de) * 1981-10-28 1984-12-13 Bucher-Guyer AG Maschinenfabrik, Niederweningen, Zürich Rückströmsperre für eine Schneckenspritzgießmaschine

Also Published As

Publication number Publication date
JPS62271720A (ja) 1987-11-26
DE3711775A1 (de) 1987-11-19
IT8720429A0 (it) 1987-05-08
FR2598651A1 (fr) 1987-11-20
IT1204566B (it) 1989-03-10
CH670065A5 (enrdf_load_stackoverflow) 1989-05-12
CN87103685A (zh) 1987-12-02

Similar Documents

Publication Publication Date Title
JPH0457176B2 (enrdf_load_stackoverflow)
JPH0374168B2 (enrdf_load_stackoverflow)
KR950701842A (ko) 열가소성 합성 플라스틱 재료의 가소화 장치(device for plasticising thermoplastic material)
KR100255080B1 (ko) 열가소성 재료 제조 장치
US4306848A (en) Injection molding apparatus having low shear screw
DE60329827D1 (de) Dekantierzentrifuge mit verschleissverstärkungseinlass
JPS6251132B2 (enrdf_load_stackoverflow)
US6554603B1 (en) Plastifying unit in injection-moulding machines with a nonreturn valve
EP1980323B1 (de) Schneidsystem insbesondere für eine Feinstzerkleinerungsmaschine
EP0530805B1 (en) Screw head structure
US6857867B2 (en) Backflow prevention device
JPH042831B2 (enrdf_load_stackoverflow)
TW434128B (en) Plasticizing screw
US5044926A (en) Anti-backflow valve for injection molding machines
GB2108423A (en) A back flow seal in an injection cylinder
JPH0750185Y2 (ja) 射出成形機の逆流防止リング
JP3153617B2 (ja) スクリュヘッド構造体
US5580008A (en) Chopper with rotatable cutting tool and stopping body
KR920007899A (ko) 와이어 못 병합 기계 및 방법
GB1505013A (en) Backflow seal for an injection moulding machine
JPS62199416A (ja) 射出成形機の逆流防止リング
JP3167345B2 (ja) スクリュー押出機
JPH01193467A (ja) 耐圧オイルシール用バックアップリング
US20030232106A1 (en) Backflow prevention device
JPH05116180A (ja) 合成樹脂射出成形ユニツトの可塑化シリンダのノズル