GB927800A - Sprue removal in injection moulding machines - Google Patents

Sprue removal in injection moulding machines

Info

Publication number
GB927800A
GB927800A GB2457860A GB2457860A GB927800A GB 927800 A GB927800 A GB 927800A GB 2457860 A GB2457860 A GB 2457860A GB 2457860 A GB2457860 A GB 2457860A GB 927800 A GB927800 A GB 927800A
Authority
GB
United Kingdom
Prior art keywords
sprue
injection
mould
circular
springs
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
GB2457860A
Inventor
Edward Davey Turner
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.)
Emhart Materials UK Ltd
Original Assignee
Emhart Materials UK Ltd
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 Emhart Materials UK Ltd filed Critical Emhart Materials UK Ltd
Priority to GB2457860A priority Critical patent/GB927800A/en
Priority to CH799561A priority patent/CH386687A/en
Publication of GB927800A publication Critical patent/GB927800A/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
    • B29C45/38—Cutting-off equipment for sprues or ingates
    • 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
    • B29C45/062—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 carrying mould halves co-operating with fixed mould halves
    • 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
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • 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
    • B29C45/16—Making multilayered or multicoloured articles

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)

Abstract

927,800. Injection moulding machines. TURNER MACHINERY Ltd. June 27, 1961 [July 14, 1960], No. 24578/60. Class 87(2). An injection moulding machine comprises a mould assembly and injection means adapted to co-operate with a sprue carrier having at least two sprue channel sets in such a way that whilst one set is in use in the injection process the other is automatically cleared of sprue, the sprue channel sets being changed over for subsequent injections. After a moulding cycle and starting with the mould sections apart, oil under pressure is applied a cylinder (not shown) causing rotation of a circular male mould carrier 10 through 90 degrees, so carrying off the articles 60 moulded in the preceding injection cycle and installing clean male mould cores for the next injection cycle. At the same time oil is applied to another cylinder (not shown) causing rotation of a circular sprue plate 41 through 180 degrees, carrying the sprue loaded channel set to a lower position and installing the cleared channel set in the injection zone 29, 50. The mould sections are then closed axially by a toggle mechanism so that the male mould cores enter the female mould cavities 37, which then move against springs (not shown) to press against an auxiliary headstock 22. This in turn is moved against springs (not shown) to press against a headstock plate 3. The latter movement automatically brings about the ejection of the sprue 58 from the bottom channel set by means of pins 56. The injection is performed by a nozzle 29 and the mould is again opened by the toggle mechanism and springs. In a modification, Figs. 7 to 11 (not shown), a horizontally reciprocating sprue removal system is used in place of the circular one described above, but both may be used in conjunction with two injection nozzles, e.g. for materials of different colours. Specification 908,298 is referred to.
GB2457860A 1960-07-14 1960-07-14 Sprue removal in injection moulding machines Expired GB927800A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2457860A GB927800A (en) 1960-07-14 1960-07-14 Sprue removal in injection moulding machines
CH799561A CH386687A (en) 1960-07-14 1961-07-07 Injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2457860A GB927800A (en) 1960-07-14 1960-07-14 Sprue removal in injection moulding machines

Publications (1)

Publication Number Publication Date
GB927800A true GB927800A (en) 1963-06-06

Family

ID=10213860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2457860A Expired GB927800A (en) 1960-07-14 1960-07-14 Sprue removal in injection moulding machines

Country Status (2)

Country Link
CH (1) CH386687A (en)
GB (1) GB927800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113692A2 (en) * 1983-01-10 1984-07-18 Dusan Slepcevic Encapsulation mold with gate plate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537143C2 (en) * 1995-10-05 1998-12-17 Siemens Nixdorf Inf Syst Method and device for final assembly of a computer keyboard
ATE300409T1 (en) * 2000-09-18 2005-08-15 Engel Austria Gmbh DRAWLESS INJECTION MOLDING MACHINE
DE102010048000A1 (en) * 2010-10-08 2012-04-12 Otto Männer Innovation GmbH injection molding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113692A2 (en) * 1983-01-10 1984-07-18 Dusan Slepcevic Encapsulation mold with gate plate
EP0113692A3 (en) * 1983-01-10 1985-12-27 Dusan Slepcevic Encapsulation mold with gate plate

Also Published As

Publication number Publication date
CH386687A (en) 1965-01-15

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