ATA354982A - BACKFLOW BLOCK FOR SCREW INJECTION MOLDING MACHINES - Google Patents

BACKFLOW BLOCK FOR SCREW INJECTION MOLDING MACHINES

Info

Publication number
ATA354982A
ATA354982A AT354982A AT354982A ATA354982A AT A354982 A ATA354982 A AT A354982A AT 354982 A AT354982 A AT 354982A AT 354982 A AT354982 A AT 354982A AT A354982 A ATA354982 A AT A354982A
Authority
AT
Austria
Prior art keywords
injection molding
molding machines
screw injection
backflow block
backflow
Prior art date
Application number
AT354982A
Other languages
German (de)
Other versions
AT384989B (en
Original Assignee
Bucher Guyer Ag Masch
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 Bucher Guyer Ag Masch filed Critical Bucher Guyer Ag Masch
Publication of ATA354982A publication Critical patent/ATA354982A/en
Application granted granted Critical
Publication of AT384989B publication Critical patent/AT384989B/en

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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
AT354982A 1981-10-28 1982-09-23 BACKFLOW BLOCK FOR SCREW INJECTION MOLDING MACHINES AT384989B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813142756 DE3142756C2 (en) 1981-10-28 1981-10-28 Non-return valve for a screw injection molding machine

Publications (2)

Publication Number Publication Date
ATA354982A true ATA354982A (en) 1987-07-15
AT384989B AT384989B (en) 1988-02-10

Family

ID=6145041

Family Applications (1)

Application Number Title Priority Date Filing Date
AT354982A AT384989B (en) 1981-10-28 1982-09-23 BACKFLOW BLOCK FOR SCREW INJECTION MOLDING MACHINES

Country Status (4)

Country Link
AT (1) AT384989B (en)
DE (1) DE3142756C2 (en)
FR (1) FR2515102B1 (en)
GB (1) GB2108423B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643665A (en) * 1985-09-05 1987-02-17 Mallard Machine Company Check valve assembly for injection molding machine
CH670065A5 (en) * 1986-05-13 1989-05-12 Netstal Ag Maschf Giesserei
JP3076099B2 (en) * 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 Screw head structure
DE4431264A1 (en) * 1994-09-02 1996-03-07 Fahr Bucher Gmbh Device for introducing an injection material into a mold
JP2004130518A (en) * 2002-10-08 2004-04-30 Fuji Photo Film Co Ltd Injection machine
CN103434931B (en) * 2013-09-09 2015-09-09 山起重型机械股份公司 Hoisting crane horizontally-guided device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB870109A (en) * 1959-03-18 1961-06-14 Grundig Max Injection moulding for thermoplastic synthetic substances
DE2006389C3 (en) * 1970-02-03 1976-01-08 Battenfeld Maschinenfabriken Gmbh & Co Kg, 5892 Meinerzhagen Backflow stop for injection molding screw-piston machines for processing plastic materials with a rotating and axially movable screw
GB1318503A (en) * 1970-07-07 1973-05-31 Desma Werke Gmbh Conveying worm injection-moulding machine reverse-flow preventers
FR2112691A5 (en) * 1970-11-06 1972-06-23 Deutsch Co Injection moulding check valve - with low wastage, losses etc
DE2108810A1 (en) * 1971-02-12 1972-08-24 Mannesmann Meer Ag Injection moulding screw seal - comprising ring which rotates with screw to reduce wear
DE2758300A1 (en) * 1977-12-27 1979-07-05 Ludwig Wittrock Reverse current stop valve for screw injection machine - has closing cylinder with gap allowing part of moulding cpd. to pass through to prevent setting and fouling
DE2946683A1 (en) * 1979-11-20 1981-05-27 Mannesmann Demag Kunstofftechnik Zweigniederlassung der Mannesmann Demag AG, 8500 Nürnberg Extruder head backflow valve - has ring sliding on shaft with tapered gap at front position for polymer lubrication

Also Published As

Publication number Publication date
AT384989B (en) 1988-02-10
DE3142756A1 (en) 1983-05-11
FR2515102A1 (en) 1983-04-29
GB2108423A (en) 1983-05-18
DE3142756C2 (en) 1984-12-13
FR2515102B1 (en) 1986-01-24
GB2108423B (en) 1986-04-09

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee