GB1505013A - Backflow seal for an injection moulding machine - Google Patents
Backflow seal for an injection moulding machineInfo
- Publication number
- GB1505013A GB1505013A GB1661476A GB1661476A GB1505013A GB 1505013 A GB1505013 A GB 1505013A GB 1661476 A GB1661476 A GB 1661476A GB 1661476 A GB1661476 A GB 1661476A GB 1505013 A GB1505013 A GB 1505013A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head
- injection
- screw
- ring
- injection moulding
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752518219 DE2518219A1 (de) | 1975-04-24 | 1975-04-24 | Rueckstroemsperre an schneckenspritzgiessmaschinen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1505013A true GB1505013A (en) | 1978-03-22 |
Family
ID=5944901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1661476A Expired GB1505013A (en) | 1975-04-24 | 1976-04-23 | Backflow seal for an injection moulding machine |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2518219A1 (nl) |
FR (1) | FR2308494A1 (nl) |
GB (1) | GB1505013A (nl) |
NL (1) | NL7604007A (nl) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6857867B2 (en) | 2002-03-09 | 2005-02-22 | Demag Ergotech Gmbh | Backflow prevention device |
CN110091480A (zh) * | 2019-05-31 | 2019-08-06 | 徐锡东 | 一种注塑机用螺杆止逆环机构 |
CN113334713A (zh) * | 2021-04-21 | 2021-09-03 | 周加友 | 注塑模具用防物料回流缺料的推进装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2942320A1 (de) * | 1979-10-19 | 1981-05-07 | Mannesmann Demag Kunstofftechnik Zweigniederlassung der Mannesmann Demag AG, 8500 Nürnberg | Rueckstroemsperre an schnecken-spritzgiessmaschinen |
SE8205560L (sv) * | 1982-09-29 | 1984-03-30 | Stig Baumer | Spets till plastificeringsskruv |
DE4204537A1 (de) * | 1992-02-15 | 1993-08-19 | Boy Gmbh Dr | Schneckenanordnung fuer eine spritzgiessmaschine |
DE19619730C2 (de) * | 1995-05-16 | 1999-01-28 | Engel Gmbh Maschbau | Einspritzeinheit einer Spritzgießmaschine |
-
1975
- 1975-04-24 DE DE19752518219 patent/DE2518219A1/de active Pending
-
1976
- 1976-04-15 NL NL7604007A patent/NL7604007A/nl not_active Application Discontinuation
- 1976-04-22 FR FR7611936A patent/FR2308494A1/fr active Granted
- 1976-04-23 GB GB1661476A patent/GB1505013A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6857867B2 (en) | 2002-03-09 | 2005-02-22 | Demag Ergotech Gmbh | Backflow prevention device |
CN110091480A (zh) * | 2019-05-31 | 2019-08-06 | 徐锡东 | 一种注塑机用螺杆止逆环机构 |
CN113334713A (zh) * | 2021-04-21 | 2021-09-03 | 周加友 | 注塑模具用防物料回流缺料的推进装置 |
Also Published As
Publication number | Publication date |
---|---|
NL7604007A (nl) | 1976-10-26 |
DE2518219A1 (de) | 1976-11-04 |
FR2308494B3 (nl) | 1979-01-12 |
FR2308494A1 (fr) | 1976-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |