FR2318727A1 - Injection moulding head has cooling jacket - and is fixed to mould by flanges which allow elements of head to be removed separately - Google Patents
Injection moulding head has cooling jacket - and is fixed to mould by flanges which allow elements of head to be removed separatelyInfo
- Publication number
- FR2318727A1 FR2318727A1 FR7522740A FR7522740A FR2318727A1 FR 2318727 A1 FR2318727 A1 FR 2318727A1 FR 7522740 A FR7522740 A FR 7522740A FR 7522740 A FR7522740 A FR 7522740A FR 2318727 A1 FR2318727 A1 FR 2318727A1
- Authority
- FR
- France
- Prior art keywords
- head
- jacket
- mould
- flanges
- main body
- 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
- 238000001746 injection moulding Methods 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 title 1
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 239000000155 melt Substances 0.000 abstract 1
- 239000003507 refrigerant Substances 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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Injection moulding head includes a main body with an injection duct in which a valve rod is slideable to control the flow of plastic melt through the injection duct. Surrounding the main body is a jacket with an inlet and an outlet to allow a refrigerant to be circulated through the jacket, and a sealed aperture is provided in the jacket to allow melt to be fed into the injection duct. The jacket is sepd. from the main body by a spacer element. The jacket and main body are held against a mould into which the melt is injected by locking flanges. By removing the flanges the individual parts e.g. main body, jacket, spacer element etc. can be removed individually from the mould.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7522740A FR2318727A1 (en) | 1975-07-21 | 1975-07-21 | Injection moulding head has cooling jacket - and is fixed to mould by flanges which allow elements of head to be removed separately |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7522740A FR2318727A1 (en) | 1975-07-21 | 1975-07-21 | Injection moulding head has cooling jacket - and is fixed to mould by flanges which allow elements of head to be removed separately |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2318727A1 true FR2318727A1 (en) | 1977-02-18 |
FR2318727B1 FR2318727B1 (en) | 1977-12-09 |
Family
ID=9158154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7522740A Granted FR2318727A1 (en) | 1975-07-21 | 1975-07-21 | Injection moulding head has cooling jacket - and is fixed to mould by flanges which allow elements of head to be removed separately |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2318727A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4245976A (en) * | 1977-07-11 | 1981-01-20 | The General Tire & Rubber Company | Nozzle valve for in-the-mold coating apparatus |
-
1975
- 1975-07-21 FR FR7522740A patent/FR2318727A1/en active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4245976A (en) * | 1977-07-11 | 1981-01-20 | The General Tire & Rubber Company | Nozzle valve for in-the-mold coating apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR2318727B1 (en) | 1977-12-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
TP | Transmission of property | ||
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse |