GB2132936A - Device for removing cores from mouldings provided with inner threads - Google Patents

Device for removing cores from mouldings provided with inner threads

Info

Publication number
GB2132936A
GB2132936A GB08404958A GB8404958A GB2132936A GB 2132936 A GB2132936 A GB 2132936A GB 08404958 A GB08404958 A GB 08404958A GB 8404958 A GB8404958 A GB 8404958A GB 2132936 A GB2132936 A GB 2132936A
Authority
GB
United Kingdom
Prior art keywords
cores
mouldings
inner threads
removing cores
displaced
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
Application number
GB08404958A
Other versions
GB8404958D0 (en
GB2132936B (en
Inventor
Pentti Sivonen
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.)
LUPOPLAST Oy
Original Assignee
LUPOPLAST Oy
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 LUPOPLAST Oy filed Critical LUPOPLAST Oy
Publication of GB8404958D0 publication Critical patent/GB8404958D0/en
Publication of GB2132936A publication Critical patent/GB2132936A/en
Application granted granted Critical
Publication of GB2132936B publication Critical patent/GB2132936B/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
    • B29C45/26—Moulds
    • B29C45/2618—Moulds having screw-threaded mould walls
    • B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
    • 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
    • B29C45/2681—Moulds with rotatable mould parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Insulating Bodies (AREA)
  • Casting Devices For Molds (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Abstract

A plurality of cores (9) extend through a second mould plate (2), which cores are rotatable around their axis and which are pressed into the mould plate (2) when disengaging mouldings (3) from the cores. In order to ensure that all cores (9), after the disengaging step, have been displaced to their rear position, which indicates that the mouldings (3) are disengaged, a force acts on the cores through a return plate (14) which is commom to all cores and which is able to return to its rear position only when all cores (9) can be displaced to this position.
GB08404958A 1982-04-21 1983-04-20 Device for removing cores from mouldings provided with inner threads Expired GB2132936B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI821388A FI64910C (en) 1982-04-21 1982-04-21 ADJUSTMENT OF AVERAGE MEASURES WITHOUT PRESSURE INSIDE
PCT/FI1983/000030 WO1983003793A1 (en) 1982-04-21 1983-04-20 Device for removing cores from mouldings provided with inner threads

Publications (3)

Publication Number Publication Date
GB8404958D0 GB8404958D0 (en) 1984-03-28
GB2132936A true GB2132936A (en) 1984-07-18
GB2132936B GB2132936B (en) 1985-09-11

Family

ID=8515395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08404958A Expired GB2132936B (en) 1982-04-21 1983-04-20 Device for removing cores from mouldings provided with inner threads

Country Status (10)

Country Link
JP (1) JPS59500556A (en)
AU (1) AU1476683A (en)
DE (1) DE3342779T1 (en)
DK (1) DK556683D0 (en)
FI (1) FI64910C (en)
GB (1) GB2132936B (en)
NL (1) NL8320119A (en)
NO (1) NO834596L (en)
SE (1) SE440993B (en)
WO (1) WO1983003793A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1321322B1 (en) * 2000-05-05 2004-01-08 Sacmi CAROUSEL EQUIPMENT FOR THE MANUFACTURE, THROUGH THE OPENING MOLDING, OF PLASTIC CAPSULES
TWI577525B (en) * 2012-12-26 2017-04-11 鴻海精密工業股份有限公司 Detachable screw pole and mold
CN106113404B (en) * 2016-07-26 2019-04-23 苏州启点机械有限公司 Double-head inner thread mold and the method for preparing double-head inner thread product using it

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1887993A (en) * 1929-03-06 1932-11-15 Colt S Mfg Co Molding apparatus and method of molding for interiorly threaded articles
JPS4840899B1 (en) * 1970-02-04 1973-12-03

Also Published As

Publication number Publication date
NO834596L (en) 1983-12-14
DK556683A (en) 1983-12-02
FI64910B (en) 1983-10-31
FI64910C (en) 1984-02-10
NL8320119A (en) 1984-07-02
DE3342779T1 (en) 1984-09-20
GB8404958D0 (en) 1984-03-28
JPS59500556A (en) 1984-04-05
WO1983003793A1 (en) 1983-11-10
SE8402726L (en) 1984-05-21
SE8402726D0 (en) 1984-05-21
FI821388A0 (en) 1982-04-21
DK556683D0 (en) 1983-12-02
AU1476683A (en) 1983-11-21
GB2132936B (en) 1985-09-11
SE440993B (en) 1985-09-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee