GB599570A - Improvements in methods of and apparatus for injection moulding of thermoplastic materials - Google Patents

Improvements in methods of and apparatus for injection moulding of thermoplastic materials

Info

Publication number
GB599570A
GB599570A GB2413945A GB2413945A GB599570A GB 599570 A GB599570 A GB 599570A GB 2413945 A GB2413945 A GB 2413945A GB 2413945 A GB2413945 A GB 2413945A GB 599570 A GB599570 A GB 599570A
Authority
GB
United Kingdom
Prior art keywords
comb
pins
mould
teeth
moulding
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
GB2413945A
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.)
ANDRE CRETIN
Original Assignee
ANDRE CRETIN
Filing date
Publication date
Application filed by ANDRE CRETIN filed Critical ANDRE CRETIN
Publication of GB599570A publication Critical patent/GB599570A/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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14549—Coating rod-like, wire-like or belt-like 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • 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
    • B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
    • B29C2045/1787—Mould parts driven by pressure of injected material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)

Abstract

599,570. Injection-moulding articles with embedded inserts. THURGAR, BOLLE, Ltd., (Cretin, A.). Sept. 18, 1945, No. 24139. [Class 87 (ii)] A reinforcing wire 33 is located in a mould 10, 11, by means of pins 13. Thermoplastic material such as cellulose acetate is injected through the channel 32 and when the mould is full the piston 23 is forced outwards, moving the cam bars 26, 27, to allow the pins 13 to be moved out by the pressure of the moulded material so that their ends lie flush with the sides of the mould cavity. After moulding the moulded article is pressed between heated dies to remove the imprint of the inner ends of the pins 13. Combs, knitting needles, or spectacle frame sides or fronts may be made by the method. In the case of spectacle frames the hinge parts may be incorporated with the reinforcing wires. For a comb the reinforcement may be in the form of a strip of metal extending within the back of the comb and formed with teeth which extend part way along the teeth of the comb.
GB2413945A 1945-09-18 Improvements in methods of and apparatus for injection moulding of thermoplastic materials Expired GB599570A (en)

Publications (1)

Publication Number Publication Date
GB599570A true GB599570A (en) 1948-03-16

Family

ID=1738148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2413945A Expired GB599570A (en) 1945-09-18 Improvements in methods of and apparatus for injection moulding of thermoplastic materials

Country Status (1)

Country Link
GB (1) GB599570A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074112A (en) * 1959-04-15 1963-01-22 Joseph A Bobrow Apparatus for molding an embedment within a plastic mass
DE1188790B (en) * 1955-01-10 1965-03-11 Franz Prokopius Multi-part injection mold for the production of flat plastic hollow bodies
US3199150A (en) * 1962-10-05 1965-08-10 Clayton Corp Of Delaware Mold for dispensing spout
US3473197A (en) * 1968-05-06 1969-10-21 Mold & Tool Co Inc E W Locked mold assembly
US4102973A (en) * 1974-01-04 1978-07-25 Hanning Elektro-Werke Method of producing an excitation coil for shaded pole electric motors
US4278417A (en) * 1979-12-31 1981-07-14 E. W. Mold & Tool Co. Inc. Internally locked core centering mold assembly
GB2119243A (en) * 1982-04-22 1983-11-16 Oreal A combing device with antistatic properties
WO1984003794A1 (en) * 1983-03-25 1984-09-27 Ceraver Method for producing a composite insulator and insulator obtained thereby
EP0121598A2 (en) * 1983-04-02 1984-10-17 Gerhard Ritter Protective envelope for a bank card or the like
DE3320207A1 (en) * 1983-06-03 1984-12-06 Gerhard 7100 Heilbronn Ritter Protective sheath for a cheque card or the like
FR2556645A1 (en) * 1983-12-19 1985-06-21 Hager Daniel Process and device for injection-moulding a plastic part possessing an insert, and parts obtained thereby
WO1992016348A1 (en) * 1991-03-14 1992-10-01 Wera Werk Hermann Werner Gmbh & Co. Tool, especially a screwdriver, and device and process for injection-moulding a plastic handle thereon

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188790B (en) * 1955-01-10 1965-03-11 Franz Prokopius Multi-part injection mold for the production of flat plastic hollow bodies
US3074112A (en) * 1959-04-15 1963-01-22 Joseph A Bobrow Apparatus for molding an embedment within a plastic mass
US3199150A (en) * 1962-10-05 1965-08-10 Clayton Corp Of Delaware Mold for dispensing spout
US3473197A (en) * 1968-05-06 1969-10-21 Mold & Tool Co Inc E W Locked mold assembly
US4102973A (en) * 1974-01-04 1978-07-25 Hanning Elektro-Werke Method of producing an excitation coil for shaded pole electric motors
US4278417A (en) * 1979-12-31 1981-07-14 E. W. Mold & Tool Co. Inc. Internally locked core centering mold assembly
FR2473405A1 (en) * 1979-12-31 1981-07-17 Mold & Tool Co Inc E W MOLDING DEVICE HAVING INTERIOR BLOCK CORE CENTERING
DE3049282A1 (en) * 1979-12-31 1982-01-07 E-W Mold & Tool Co., Inc., 46203 Indianapolis, Ind. INJECTION MOLDS FOR THE PRODUCTION OF CONTAINERS FROM POLYOLEFINS
GB2119243A (en) * 1982-04-22 1983-11-16 Oreal A combing device with antistatic properties
WO1984003794A1 (en) * 1983-03-25 1984-09-27 Ceraver Method for producing a composite insulator and insulator obtained thereby
FR2543356A1 (en) * 1983-03-25 1984-09-28 Ceraver METHOD AND DEVICE FOR MOLDING THE INSULATING COATING OF A LARGE ORGANIC INSULATOR
EP0120787A1 (en) * 1983-03-25 1984-10-03 CERAVER Société anonyme dite: Method of moulding the insulating covering of an organic electrical insulator of great length
US4702873A (en) * 1983-03-25 1987-10-27 Ceraver, S.A. Method of manufacturing a composite insulator
AU569882B2 (en) * 1983-03-25 1988-02-25 Ceraver Dite S.A. Composite insulator
EP0121598A2 (en) * 1983-04-02 1984-10-17 Gerhard Ritter Protective envelope for a bank card or the like
EP0121598A3 (en) * 1983-04-02 1986-01-22 Gerhard Ritter Protective envelope for a bank card or the like
DE3320207A1 (en) * 1983-06-03 1984-12-06 Gerhard 7100 Heilbronn Ritter Protective sheath for a cheque card or the like
FR2556645A1 (en) * 1983-12-19 1985-06-21 Hager Daniel Process and device for injection-moulding a plastic part possessing an insert, and parts obtained thereby
WO1992016348A1 (en) * 1991-03-14 1992-10-01 Wera Werk Hermann Werner Gmbh & Co. Tool, especially a screwdriver, and device and process for injection-moulding a plastic handle thereon

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