GB1342625A – Injection moulding apparatus for heat plasticized material
– Google Patents
GB1342625A – Injection moulding apparatus for heat plasticized material
– Google Patents
Injection moulding apparatus for heat plasticized material
Info
Publication number
GB1342625A
GB1342625A
GB1342625DA
GB1342625A
GB 1342625 A
GB1342625 A
GB 1342625A
GB 1342625D A
GB1342625D A
GB 1342625DA
GB 1342625 A
GB1342625 A
GB 1342625A
Authority
GB
United Kingdom
Prior art keywords
injection
mould
block
station
passages
Prior art date
1971-03-18
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
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.)
Vulcan Corp
Original Assignee
Vulcan Corp
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.)
1971-03-18
Filing date
1971-03-18
Publication date
1974-01-03
1971-03-18
Application filed by Vulcan Corp
filed
Critical
Vulcan Corp
1974-01-03
Publication of GB1342625A
publication
Critical
patent/GB1342625A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
B29C45/20—Injection nozzles
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
B29C45/03—Injection moulding apparatus
B29C45/04—Injection moulding apparatus using movable moulds or mould halves
B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
Abstract
1342625 Injection moulding nozzle VULCAN CORP 18 March 1971 7254/71 Heading B5A A plurality of moulds 15, each defining a pair of «right» and «left» shoe insole cavities, e.g. 18, containing a two ply insert piece 17 between which injection is effected, and provided with a sprue bush 35, are successively indexed upon a rotary table 9 to an injection station, whereat injection into each cavity is simultaneously effected from one of a pair of injection nozzles 48, 49 which are simultaneously displaceable each by a fluid piston motor, e.g. 50, between a retracted position within a block 42 heated by electrical heaters 67 and whereat transverse and axial nozzle passages, e.g. 65, 61 are obturated from block passages, e.g. 70, 71 connecting to a passage 72 from a pressurized source of thermoplastic, and an injection position advanced from the block 42 whereat each conical nozzle head e.g. 63 is in abutment with a bush 35 and nozzle passages 65 are in registry with the passages 70 to permit injection from the passage 72 into each mould cavity 18. Each mould 15 comprises a lower part 23 and an upper part 24 which is separable therefrom by a bell crank lever 28 operated by a fluid pressure piston 28, and at the injection station the table 9 and mould are clamped against a bolster 13 by a clamp engaging a plate 25 to which the upper mould part 24 is attached. The rotary table 9 indexes at several mould cooling stations, a station at which the moulds are opened and the insoles discharged, and a station at which is inserted the insole piece 17 for the lower ply thereof to locate at an opening therein around a sprue bush nipple 37 permitting the injection between the plies. The block 42 is mounted in spaced insulating relationship 45 beneath the bolster at trunnions located within grooves or spaced legs 14 which support the bolster 13. The passage 72 extends from a screw injection pressure source through an electrically heated barrel 75 coupled to the block 42 for stabilizing it on its trunnions. In operation, the fluid pressure motors 50 are actuated through a solenoid reversing valve, from a limit switch actuated by the mould clamp, the injection screw being actuated through an injection period timer from an upper limit switch actuated by an arm 57 attached to the piston-rod of motor 50, the timer also acting to reverse the solenoid valve for retraction of the nozzles which, via the arm 57, actuates a lower limit switch which actuates the drive means indexing the table 9. The temperature of the plastics material injected, with respect to the timer controlled injection time, is controlled to ensure that. the sprue breaks within the insole.
GB1342625D
1971-03-18
1971-03-18
Injection moulding apparatus for heat plasticized material
Expired
GB1342625A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB725471
1971-03-18
Publications (1)
Publication Number
Publication Date
GB1342625A
true
GB1342625A
(en)
1974-01-03
Family
ID=9829588
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1342625D
Expired
GB1342625A
(en)
1971-03-18
1971-03-18
Injection moulding apparatus for heat plasticized material
Country Status (1)
Country
Link
GB
(1)
GB1342625A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2481189A1
(en)
*
1980-04-24
1981-10-30
Airault Yves
Shoe moulds with rotary platen for alternative sole blocks – for producing boots etc. of composite or contrasting structure
CN116494489A
(en)
*
2023-06-27
2023-07-28
山东鲲鹏安全防护用品有限公司
Sole stripper for working safety shoes
1971
1971-03-18
GB
GB1342625D
patent/GB1342625A/en
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2481189A1
(en)
*
1980-04-24
1981-10-30
Airault Yves
Shoe moulds with rotary platen for alternative sole blocks – for producing boots etc. of composite or contrasting structure
CN116494489A
(en)
*
2023-06-27
2023-07-28
山东鲲鹏安全防护用品有限公司
Sole stripper for working safety shoes
CN116494489B
(en)
*
2023-06-27
2023-09-22
山东鲲鹏安全防护用品有限公司
Sole stripper for working safety shoes
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Legal Events
Date
Code
Title
Description
1974-05-15
PS
Patent sealed
1975-10-15
PLNP
Patent lapsed through nonpayment of renewal fees
