GB990786A - Improvements in or relating to injection moulds - Google Patents
Improvements in or relating to injection mouldsInfo
- Publication number
- GB990786A GB990786A GB4782764A GB4782764A GB990786A GB 990786 A GB990786 A GB 990786A GB 4782764 A GB4782764 A GB 4782764A GB 4782764 A GB4782764 A GB 4782764A GB 990786 A GB990786 A GB 990786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- core
- support members
- plates
- die plates
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0042—Producing plain balls
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14122—Positioning or centering articles in the mould using fixed mould wall projections for centering the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/54—Balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
990,786. Injection moulding. DUNLOP RUBBER CO. Ltd. May 17, 1961 [May 23, 1960], No. 47827/64. Divided out of 990,784. Heading B5A. An injection mould for use in covering cored balls e.g. golf balls, comprises a plurality of substantially unpatterned mating die plates A, B defining a spherical space when assembled, the plates having at least three symmetrically disposed support members G for supporting the core, and the support members each having a radially inwardly decreasing cross section. In use, the core is mounted within the die plates A, B which are then inserted in a sleeve C, and a plate D screwed on. Cover-forming material e.g. a polyurethane polymer is poured into a transfer cavity and a plunger E inserted. The mould is then inverted and allowed to close under its own weight. When closed, the mould is placed in an oven to effect partial curing and then cooled. The coated ball is then transferred to a heated compression mould to form the finished golf ball.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4782764A GB990786A (en) | 1960-05-23 | 1960-05-23 | Improvements in or relating to injection moulds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4782764A GB990786A (en) | 1960-05-23 | 1960-05-23 | Improvements in or relating to injection moulds |
Publications (1)
Publication Number | Publication Date |
---|---|
GB990786A true GB990786A (en) | 1965-05-05 |
Family
ID=10446381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4782764A Expired GB990786A (en) | 1960-05-23 | 1960-05-23 | Improvements in or relating to injection moulds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB990786A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2572674A1 (en) * | 1985-04-26 | 1986-05-09 | Tassin Charles | Process for manufacturing hollow bodies by low-pressure injection around a prefabricated bladder |
EP1022105A1 (en) * | 1999-01-22 | 2000-07-26 | Bernard Gonsette | Article consisting of a foam core and a covering layer and process of manufacturing same |
-
1960
- 1960-05-23 GB GB4782764A patent/GB990786A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2572674A1 (en) * | 1985-04-26 | 1986-05-09 | Tassin Charles | Process for manufacturing hollow bodies by low-pressure injection around a prefabricated bladder |
EP1022105A1 (en) * | 1999-01-22 | 2000-07-26 | Bernard Gonsette | Article consisting of a foam core and a covering layer and process of manufacturing same |
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