GB1260166A - A method of preparing a mixture of plastics material and filler material for injection into molding dies - Google Patents

A method of preparing a mixture of plastics material and filler material for injection into molding dies

Info

Publication number
GB1260166A
GB1260166A GB315970A GB315970A GB1260166A GB 1260166 A GB1260166 A GB 1260166A GB 315970 A GB315970 A GB 315970A GB 315970 A GB315970 A GB 315970A GB 1260166 A GB1260166 A GB 1260166A
Authority
GB
United Kingdom
Prior art keywords
mould
piston
mixture
supplied
receptacle
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
GB315970A
Inventor
Stirling Alexander Mcinnis
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
Priority to GB315970A priority Critical patent/GB1260166A/en
Publication of GB1260166A publication Critical patent/GB1260166A/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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • 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
    • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,260,166. Injection moulding apparatus. S. A. MeINNIS. 5 March, 1969, No. 3159/70. Divided out of 1,260,163. Heading B5A. In a method of preparing a mixture of plastics and filler materials for injection into a mould 112 the plastics material is supplied to a receptacle 10 in which it is melted and continuously circulated by a pump 20, the filler material is supplied to a receptacle 36 to which liquid plastics material can be supplied from the receptacle 10, the mixture being continuously circulated by a pump 50, and the mixture: is supplied to a holding receptacle 64 in which it is circulated by a pump 76 and from which it can be delivered to the mould 112. The receptacles 10, 36 and 64 are provided with heating jackets 14, 38 and 70 respectively to maintain the materials just above the liquefying temperature. Valves 30, 58 and 90 permit circulation through the receptacles or delivery to the next receptacle or the mould. When valve 90 is closed and pistons 166, 160 withdrawn, the pump 76 delivers the mixture through an injection gun 82 to the mould. When the mould is full additional material is supplied thereto by the piston 166 to compensate for shrinkage due to cooling. As shown in Fig. 4, the injection gun 82 is movable towards and away from the mould by means of a piston 122 fixed to the machine frame 110 and a movable cylinder 128. Piston 166 is operated by a piston 164 and cylinder 148. A piston 160 for clearing residue from a passage 102 in the injection gun is operated by a piston 158 and cylinder 142. Suitable thermoplastic materials mentioned are ABS, nylon and polythene, and fillers specified are glass or synthetic fibres, particulate A1 powder, woodflour, particulate asbestos and mica.
GB315970A 1969-03-05 1969-03-05 A method of preparing a mixture of plastics material and filler material for injection into molding dies Expired GB1260166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB315970A GB1260166A (en) 1969-03-05 1969-03-05 A method of preparing a mixture of plastics material and filler material for injection into molding dies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB315970A GB1260166A (en) 1969-03-05 1969-03-05 A method of preparing a mixture of plastics material and filler material for injection into molding dies

Publications (1)

Publication Number Publication Date
GB1260166A true GB1260166A (en) 1972-01-12

Family

ID=9753057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB315970A Expired GB1260166A (en) 1969-03-05 1969-03-05 A method of preparing a mixture of plastics material and filler material for injection into molding dies

Country Status (1)

Country Link
GB (1) GB1260166A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697773A1 (en) * 1992-11-12 1994-05-13 Inoplast Sa Composite material mould injection device which eliminates prod burrs - has two independently controlled concentric pin injection pistons.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697773A1 (en) * 1992-11-12 1994-05-13 Inoplast Sa Composite material mould injection device which eliminates prod burrs - has two independently controlled concentric pin injection pistons.
EP0606037A1 (en) * 1992-11-12 1994-07-13 INOPLAST, Société Anonyme: Apparatus for injection moulding composite materials inside shaping moulds

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee