GB2022500A - Multi-impression injection mould, runner system - Google Patents
Multi-impression injection mould, runner systemInfo
- Publication number
- GB2022500A GB2022500A GB7915555A GB7915555A GB2022500A GB 2022500 A GB2022500 A GB 2022500A GB 7915555 A GB7915555 A GB 7915555A GB 7915555 A GB7915555 A GB 7915555A GB 2022500 A GB2022500 A GB 2022500A
- Authority
- GB
- United Kingdom
- Prior art keywords
- runners
- melt
- passageway
- different
- impression
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title abstract 2
- 239000007924 injection Substances 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Due to differing degrees of wall roughness of runners/branch runners 3,4 of a multi-impression injection mould having a central sprue passageway 2 and due to the runners/branch runners 3,4 having cross-sectional areas which are different from one another, the quality of mouldings formed in individual impressions can vary. The roughness leads to differences in melt speed along the runners 3,4 and consequent unequal heating and hardening. Different cross-section areas lead to unequal melt distribution and different impression-filling speeds. These disadvantages are overcome by providing a distribution element 6, extending along said sprue passageway 2, in the transition zone 5 between the passageway 2 and the runners 3,4. This has the effect of increasing the pressure of a plastics or elastomeric melt in any runner in which the melt speed has dropped below that in others, thereby restoring equality of melt speed in all runners. The position or attitude of the distribution element 6 is alterable. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH526478A CH627684A5 (en) | 1978-05-16 | 1978-05-16 | MOLDING TOOL FOR MAKING PLASTIC OR RUBBER MOLDED PARTS. |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2022500A true GB2022500A (en) | 1979-12-19 |
GB2022500B GB2022500B (en) | 1982-04-15 |
Family
ID=4290684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7915555A Expired GB2022500B (en) | 1978-05-16 | 1979-05-04 | Multimpression injection mould runner system |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH627684A5 (en) |
DE (1) | DE2911572A1 (en) |
FR (1) | FR2425925A1 (en) |
GB (1) | GB2022500B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0445634A2 (en) * | 1990-03-08 | 1991-09-11 | Phoenix Aktiengesellschaft | Method for producing plastic and elastomeric composites |
CN114393788A (en) * | 2022-01-19 | 2022-04-26 | 西南科技大学 | Convection mixing action mode filling balance regulation and control device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1330440A (en) * | 1962-08-01 | 1963-06-21 | Honda Motor Co Ltd | Further training in injection molding machines for thermoplastics |
CA919080A (en) * | 1968-10-31 | 1973-01-16 | Aci Operations Pty, Ltd | Packaging of bottles, jars and other articles |
GB1421519A (en) * | 1973-02-09 | 1976-01-21 | Desma Werke Gmbh | Injection mould |
-
1978
- 1978-05-16 CH CH526478A patent/CH627684A5/en not_active IP Right Cessation
-
1979
- 1979-03-23 DE DE19792911572 patent/DE2911572A1/en active Granted
- 1979-05-04 GB GB7915555A patent/GB2022500B/en not_active Expired
- 1979-05-15 FR FR7912842A patent/FR2425925A1/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0445634A2 (en) * | 1990-03-08 | 1991-09-11 | Phoenix Aktiengesellschaft | Method for producing plastic and elastomeric composites |
EP0445634A3 (en) * | 1990-03-08 | 1992-04-22 | Phoenix Aktiengesellschaft | Method for producing plastic and elastomeric composites |
CN114393788A (en) * | 2022-01-19 | 2022-04-26 | 西南科技大学 | Convection mixing action mode filling balance regulation and control device |
CN114393788B (en) * | 2022-01-19 | 2023-12-01 | 西南科技大学 | Filling balance regulating and controlling device for convection mixing action mode |
Also Published As
Publication number | Publication date |
---|---|
FR2425925A1 (en) | 1979-12-14 |
FR2425925B1 (en) | 1984-10-26 |
CH627684A5 (en) | 1982-01-29 |
DE2911572A1 (en) | 1979-11-29 |
GB2022500B (en) | 1982-04-15 |
DE2911572C2 (en) | 1988-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |