GB1511847A - Seamless hollow moulded rubber articles and method of making the same - Google Patents
Seamless hollow moulded rubber articles and method of making the sameInfo
- Publication number
- GB1511847A GB1511847A GB4344874A GB4344874A GB1511847A GB 1511847 A GB1511847 A GB 1511847A GB 4344874 A GB4344874 A GB 4344874A GB 4344874 A GB4344874 A GB 4344874A GB 1511847 A GB1511847 A GB 1511847A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- rubber
- moulding
- plate
- moulds
- 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
- B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
-
- 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
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/006—Joining parts moulded in separate cavities
- B29C2045/0072—Joining parts moulded in separate cavities the parts to be joined being moulded in a stack mould
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C2045/7343—Heating or cooling of the mould heating or cooling different mould parts at different temperatures
-
- 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
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/006—Joining parts moulded in separate cavities
-
- 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
Abstract
1511847 Moulding seamless hollow articles D A TAYLOR 1 April 1975 [1 April 1974] 43448/74 Heading B5A In the moulding of closed hollow articles from thermo-settable materials by initially moulding two parts and then uniting them, during the initial moulding and partial curing the mating edges of the two parts are subjected to a lower temperature than the remainder to prevent a skin forming thereon, and after the two parts are united by pressing together (without the use of gaseous pressurizing agents), the whole of the material is subjected to a temperature sufficient to completely cure the article, thereby avoiding any seam line between the two parts. Cores for tennis and golf balls are compression, transfer, or injection moulded from rubber between moulds 5, 6 in relatively movable plates 2, 3 and cores 14 carried in a plate 4 which is removable from between the plates 2, 3. A peripheral flange 19 of each core 14 enters a groove 15 in a cooling plate 11, 12 which are carried by the plate 4 and to which the core are secured by insulating washers 23 and nuts 22. Rubber is placed in the cavity 27 formed between the telescoping parts 26, 28 of plate 4 and is heated by electric elements in passages 29-32. On closing the press the rubber is forced by the movement together of parts 26, 28 through nozzles 34 and ring gates 37 into the moulds. The majority of the rubber cures to 60% of the optimum but the portion in part 16 of the groove 15 is cooled by fluid in passages 18 within the cooling plate so that it cures slightly but does not form a skin. The moulds are opened, the cores removed, and on reclosing the moulds the peripheries of the rubber parts are united and quickly reach the temperature of the remainder so that curing goes to completion throughout. The chamber 27 may be omitted, and either blanks are placed in the mould cavities for moulding solely by compression, or rubber is injected from an external source (Fig. 8, not shown), through a sprue and runners in plate 4 to nozzles (49) similar to 34.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/456,529 US3933967A (en) | 1973-02-20 | 1974-04-01 | Method of making seamless hollow molded articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1511847A true GB1511847A (en) | 1978-05-24 |
Family
ID=23813122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4344874A Expired GB1511847A (en) | 1974-04-01 | 1975-04-01 | Seamless hollow moulded rubber articles and method of making the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS50135185A (en) |
| AU (1) | AU7696974A (en) |
| CA (1) | CA1033519A (en) |
| GB (1) | GB1511847A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1674231A1 (en) * | 2004-12-23 | 2006-06-28 | Gitis S.r.L. | Improved system for forming products from elastomeric material |
| WO2007105091A2 (en) * | 2006-03-14 | 2007-09-20 | Wintech S.R.L. | Injection press for the manufacture of one- and two-colour pieces |
| EP2656883A3 (en) * | 2012-04-26 | 2014-07-02 | Nike International Ltd. | Mold plate and method of molding golf ball core |
| US20210170634A1 (en) * | 2019-12-05 | 2021-06-10 | Bridgestone Sports Co.,Ltd. | Multilayer core molding method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2906299A1 (en) * | 1979-02-19 | 1980-08-21 | Desma Werke Gmbh | METHOD AND DEVICE FOR PRODUCING HOLLOW BODIES, IN PARTICULAR HEAT BOTTLES FROM POLYMERIC MATERIALS |
| JPS56111656A (en) * | 1980-02-12 | 1981-09-03 | Bridgestone Corp | Preparation of thermosetting polymer product having core body internally |
| FR2574018B1 (en) * | 1984-12-05 | 1988-12-23 | Lalloz Guy | PROCESS FOR THE MANUFACTURE OF A HOLLOW BODY-SHAPED PART, FOR EXAMPLE OF EXPANDED POLYSTYRENE, FROM SEVERAL ELEMENTARY PARTS, AND PART THUS OBTAINED |
| JPS621529A (en) * | 1985-06-27 | 1987-01-07 | Honda Motor Co Ltd | Manufacture of laminated molded material made of synthetic resin and manufacturing device |
| JPS621528A (en) * | 1985-06-27 | 1987-01-07 | Honda Motor Co Ltd | Manufacture of laminated molded material made of synthetic resin and manufacturing device |
| CN104759076B (en) * | 2015-03-27 | 2016-04-06 | 肇庆川越运动工业有限公司 | A kind of adhesive sport ball ball sheet folding brake |
-
1974
- 1974-09-11 CA CA208,962A patent/CA1033519A/en not_active Expired
- 1974-12-31 AU AU76969/74A patent/AU7696974A/en not_active Expired
-
1975
- 1975-04-01 GB GB4344874A patent/GB1511847A/en not_active Expired
- 1975-04-01 JP JP50039724A patent/JPS50135185A/ja active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1674231A1 (en) * | 2004-12-23 | 2006-06-28 | Gitis S.r.L. | Improved system for forming products from elastomeric material |
| WO2007105091A2 (en) * | 2006-03-14 | 2007-09-20 | Wintech S.R.L. | Injection press for the manufacture of one- and two-colour pieces |
| WO2007105091A3 (en) * | 2006-03-14 | 2008-01-17 | Wintech S R L | Injection press for the manufacture of one- and two-colour pieces |
| EP2656883A3 (en) * | 2012-04-26 | 2014-07-02 | Nike International Ltd. | Mold plate and method of molding golf ball core |
| US8974218B2 (en) | 2012-04-26 | 2015-03-10 | Nike, Inc. | Mold plate and method of molding golf ball core |
| US9707455B2 (en) | 2012-04-26 | 2017-07-18 | Feng Tay Enterprises Co., Ltd. | Mold plate and method of molding golf ball core |
| US20210170634A1 (en) * | 2019-12-05 | 2021-06-10 | Bridgestone Sports Co.,Ltd. | Multilayer core molding method |
| US11602874B2 (en) * | 2019-12-05 | 2023-03-14 | Bridgestone Sports Co., Ltd. | Multilayer core molding method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU7696974A (en) | 1976-07-01 |
| CA1033519A (en) | 1978-06-27 |
| JPS50135185A (en) | 1975-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |