GB1201319A - 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 races

Info

Publication number
GB1201319A
GB1201319A GB5053267A GB5053267A GB1201319A GB 1201319 A GB1201319 A GB 1201319A GB 5053267 A GB5053267 A GB 5053267A GB 5053267 A GB5053267 A GB 5053267A GB 1201319 A GB1201319 A GB 1201319A
Authority
GB
United Kingdom
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
Application number
GB5053267A
Inventor
Wolfgang Katz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1201319A publication Critical patent/GB1201319A/en
Expired legal-status Critical Current

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

1,201,319. Moulding bearing cages. W. KATZ. 7 Nov., 1967 [23 Sept., 1967], No. 50532/67. Heading B5A. [Also in Division F2] 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.
GB5053267A 1967-09-23 1967-11-07 Improvements in and relating to an injection mould for ball bearing races Expired GB1201319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0063432 1967-09-23

Publications (1)

Publication Number Publication Date
GB1201319A true GB1201319A (en) 1970-08-05

Family

ID=7231108

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5053267A Expired GB1201319A (en) 1967-09-23 1967-11-07 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
CH464499A (en) 1968-10-31
DE1704150B1 (en) 1973-02-08
FR1558358A (en) 1969-02-28
BE711988A (en) 1968-07-15
ES347868A1 (en) 1969-02-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees