ES347868A1 - Improvements in and relating to an injection mould for ball bearing races - Google Patents
Improvements in and relating to an injection mould for ball bearing racesInfo
- Publication number
- ES347868A1 ES347868A1 ES347868A ES347868A ES347868A1 ES 347868 A1 ES347868 A1 ES 347868A1 ES 347868 A ES347868 A ES 347868A ES 347868 A ES347868 A ES 347868A ES 347868 A1 ES347868 A1 ES 347868A1
- Authority
- ES
- Spain
- Prior art keywords
- cores
- plate
- retractable
- tines
- core
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
-
- 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
- B29C45/2628—Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Hollow cylindrical cages 28a for ball bearings, are injection moulded in a cavity 27a defined between an outer mould portion 6, attached to a base-plate 1 which is provided with injection passages 7, 8, and a retractable inner core 26 mounted to a plate 2, with the ball retaining openings being formed by annular flanges 30 of a plurality of radially retractable cores 10 which are displaced by a plurality of axially displaceable tines 20 of a rake 17. Each tine 20 co-operates with a guide groove 22 on each of two adjacent retractable cores 10. The adjacent cores 10 may be located in circular paths, or the adjacent cores may be staggered along a spiral path of approximately 3 degrees pitch to the axis of the mould when the tines 20 are also similarly inclined and the rake 17 is mounted to the retractable plate 2 at a bearing 16 permitting relative rotational movement with respect thereto on displacement of the cores 10. The inner core 26 is mounted on the plate 2, for relative axial movement with respect thereto, via springs 28, whereby the core 26 is retained in the moulding cavity until the cores 10 have been retracted, and in which retracted position the cores 10 are then retained by wires 13 for subsequent re-engagement by the advancing tines 20. The bearing cage is stripped from the retracted core 26 by ejectors 31.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0063432 | 1967-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES347868A1 true ES347868A1 (en) | 1969-02-16 |
Family
ID=7231108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES347868A Expired ES347868A1 (en) | 1967-09-23 | 1967-12-01 | Improvements in and relating to an injection mould for ball bearing races |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE711988A (en) |
| CH (1) | CH464499A (en) |
| ES (1) | ES347868A1 (en) |
| FR (1) | FR1558358A (en) |
| GB (1) | GB1201319A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2179947A1 (en) * | 1995-09-25 | 1997-03-26 | Michael Gunnar Johnson | Mold assembly for forming apertures in a molded body |
| DE19745332C1 (en) * | 1997-10-14 | 1999-02-25 | Bosch Gmbh Robert | Plastic fuel line suction unit with integral undercut hose union and moulding process |
| CN113071075A (en) * | 2021-04-05 | 2021-07-06 | 浙江台州美多模具有限公司 | Secondary ejection mechanism of injection mold |
-
1967
- 1967-10-25 CH CH1488767A patent/CH464499A/en unknown
- 1967-11-07 GB GB5053267A patent/GB1201319A/en not_active Expired
- 1967-11-07 FR FR1558358D patent/FR1558358A/fr not_active Expired
- 1967-12-01 ES ES347868A patent/ES347868A1/en not_active Expired
-
1968
- 1968-03-11 BE BE711988D patent/BE711988A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1558358A (en) | 1969-02-28 |
| GB1201319A (en) | 1970-08-05 |
| DE1704150B1 (en) | 1973-02-08 |
| BE711988A (en) | 1968-07-15 |
| CH464499A (en) | 1968-10-31 |
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