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 materialsInfo
- 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
Links
- 239000000463 material Substances 0.000 title abstract 3
- 238000001746 injection moulding Methods 0.000 title abstract 2
- 229920001169 thermoplastic Polymers 0.000 title abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 title abstract 2
- 230000003014 reinforcing Effects 0.000 abstract 2
- 240000002840 Allium cepa Species 0.000 abstract 1
- 229920002301 Cellulose acetate Polymers 0.000 abstract 1
- 210000001520 Comb Anatomy 0.000 abstract 1
- 238000009940 knitting Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
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.
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)
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 |
-
1945
- 1945-09-18 GB GB2413945A patent/GB599570A/en not_active Expired
Cited By (19)
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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