GB1318503A - Conveying worm injection-moulding machine reverse-flow preventers - Google Patents

Conveying worm injection-moulding machine reverse-flow preventers

Info

Publication number
GB1318503A
GB1318503A GB1347271*[A GB1347271A GB1318503A GB 1318503 A GB1318503 A GB 1318503A GB 1347271 A GB1347271 A GB 1347271A GB 1318503 A GB1318503 A GB 1318503A
Authority
GB
United Kingdom
Prior art keywords
ring
moulding machine
screw
conveying worm
head
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
Application number
GB1347271*[A
Other languages
English (en)
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.)
Desma Werke GmbH
Original Assignee
Desma Werke GmbH
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
Priority claimed from DE19702033548 external-priority patent/DE2033548C3/de
Application filed by Desma Werke GmbH filed Critical Desma Werke GmbH
Publication of GB1318503A publication Critical patent/GB1318503A/en
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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
GB1347271*[A 1970-07-07 1971-05-06 Conveying worm injection-moulding machine reverse-flow preventers Expired GB1318503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702033548 DE2033548C3 (de) 1970-07-07 Rückstromsperre einer Schnecken-Spritzgießmaschine

Publications (1)

Publication Number Publication Date
GB1318503A true GB1318503A (en) 1973-05-31

Family

ID=5775990

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1347271*[A Expired GB1318503A (en) 1970-07-07 1971-05-06 Conveying worm injection-moulding machine reverse-flow preventers

Country Status (7)

Country Link
US (1) US3698694A (enExample)
JP (1) JPS523978B1 (enExample)
AT (1) AT323989B (enExample)
CS (1) CS164911B2 (enExample)
FR (1) FR2097873A5 (enExample)
GB (1) GB1318503A (enExample)
SE (1) SE374889B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515102A1 (fr) * 1981-10-28 1983-04-29 Bucher Guyer Ag Masch Dispositif de barrage contre un ecoulement en retour pour un extrudeur a vis sans fin

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065108A (en) * 1976-11-11 1977-12-27 Package Machinery Company Non-return valve for mottle charge in plastic injection molding machine
SE8205560L (sv) * 1982-09-29 1984-03-30 Stig Baumer Spets till plastificeringsskruv
US5167971A (en) * 1991-07-29 1992-12-01 Gill Joseph R Check valve assembly for injection molding apparatus
AT397229B (de) * 1992-03-12 1994-02-25 Engel Gmbh Maschbau Rückstromsperre für eine einspritzeinheit einer spritzgiessmaschine
DE19716127C1 (de) * 1997-04-17 1998-03-05 Krauss Maffei Ag Extruderschnecke
US6203311B1 (en) * 1998-05-04 2001-03-20 Robert F. Dray Sliding ring non-return valve
US6254266B1 (en) * 1998-05-22 2001-07-03 Robert A. Barr Floating ring mixer for extruder
US20030211198A1 (en) * 2001-08-30 2003-11-13 Gill Joseph R. Check valve assembly for injection molding apparatus
US7252500B2 (en) * 2001-08-30 2007-08-07 Joseph R Gill Check valve assembly for injection molding apparatus
US6957953B2 (en) * 2003-02-20 2005-10-25 Graham Packaging Company, L.P. Reservoir reducing screw tip
US6921190B2 (en) * 2003-04-22 2005-07-26 Mgs Mfg. Group Inc. Injector with improved small shot metering
WO2012120637A1 (ja) * 2011-03-08 2012-09-13 日立マクセル株式会社 混練装置、及び熱可塑性樹脂成形体の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2515102A1 (fr) * 1981-10-28 1983-04-29 Bucher Guyer Ag Masch Dispositif de barrage contre un ecoulement en retour pour un extrudeur a vis sans fin

Also Published As

Publication number Publication date
DE2033548B2 (de) 1977-04-14
AT323989B (de) 1975-08-11
SE374889B (enExample) 1975-03-24
US3698694A (en) 1972-10-17
JPS523978B1 (enExample) 1977-01-31
CS164911B2 (enExample) 1975-11-28
FR2097873A5 (enExample) 1972-03-03
DE2033548A1 (de) 1972-02-03

Similar Documents

Publication Publication Date Title
GB1318503A (en) Conveying worm injection-moulding machine reverse-flow preventers
GB1110303A (en) Improvements in or relating to injection moulding machines
GB1016749A (en) Injection molding machines
GB1475216A (en) Mixing machine
GB1331448A (en) Annular u-cup body of elastomeric material for a sealinr ring
GB1207684A (en) Circular knitting machines
ES419975A1 (es) Dispositivo para la propulsion de rotacion y avance para eltornillo sin fin plastificador de una maquina de moldeo por inyeccion.
GB1300794A (en) Improvements in or relating to apparatus for producing gramophone records
IT964267B (it) Dispositivo per la produzione di pezzi stampati ad iniezione quali cappellotti di chiusura a vite e simili
GB1107281A (en) Elastic melt extruder with internal pressure generating section
GB1264660A (enExample)
CA945715A (en) Rotary type injection molding machine
GB1312222A (en) Screw piston feed device
GB994929A (en) Extruder screw with right angle discharge
CA1000919A (fr) Machine a injecter avec clapet de vis a section differentielle
GB1009229A (en) Injection molding
ES361319A1 (es) Maquina de moldeo por inyeccion.
GB954812A (en) A machine for feeding plastic materials such as meat in water emulsion into molds
AU2107170A (en) Plastics injection-molding machine utilizing premixed billets
GB1094023A (en) An improved non-return valve for the worm head of helical injection moulding machines for the treatment of thermoplastic synthetic materials
GB1120722A (en) Injection moulding machine
GB1505013A (en) Backflow seal for an injection moulding machine
FR2112691A5 (en) Injection moulding check valve - with low wastage, losses etc
GB1398109A (en) Stamp affixer
GB942260A (en) Extrusion press

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee