ATA354982A - BACKFLOW BLOCK FOR SCREW INJECTION MOLDING MACHINES - Google Patents
BACKFLOW BLOCK FOR SCREW INJECTION MOLDING MACHINESInfo
- 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
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)
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)
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)
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 |
-
1981
- 1981-10-28 DE DE19813142756 patent/DE3142756C2/en not_active Expired
-
1982
- 1982-09-23 AT AT354982A patent/AT384989B/en not_active IP Right Cessation
- 1982-10-25 FR FR8218128A patent/FR2515102B1/en not_active Expired
- 1982-10-26 GB GB08230534A patent/GB2108423B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3142756A1 (en) | 1983-05-11 |
FR2515102B1 (en) | 1986-01-24 |
FR2515102A1 (en) | 1983-04-29 |
AT384989B (en) | 1988-02-10 |
GB2108423A (en) | 1983-05-18 |
GB2108423B (en) | 1986-04-09 |
DE3142756C2 (en) | 1984-12-13 |
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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 |