FR2055248A5 - Injection moulding of long hollow rods esp - spectacle frames - Google Patents

Injection moulding of long hollow rods esp - spectacle frames

Info

Publication number
FR2055248A5
FR2055248A5 FR7026296A FR7026296A FR2055248A5 FR 2055248 A5 FR2055248 A5 FR 2055248A5 FR 7026296 A FR7026296 A FR 7026296A FR 7026296 A FR7026296 A FR 7026296A FR 2055248 A5 FR2055248 A5 FR 2055248A5
Authority
FR
France
Prior art keywords
pin
mould
spectacle frames
esp
injection 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
FR7026296A
Other languages
French (fr)
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 FR7026296A priority Critical patent/FR2055248A5/en
Application granted granted Critical
Publication of FR2055248A5 publication Critical patent/FR2055248A5/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
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • 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
    • B29C45/36—Moulds having means for locating or centering cores
    • 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
    • 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
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C2045/5695—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding using a movable mould part for continuously increasing the volume of the mould cavity to its final dimension during the whole injection step

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The moulding device has a pin placed in a guide tube centred in the mould for the piece, the tube being withdrawn mechanically during injection by device operated by the injected material in a secondary mould. The withdrawal of the guide tube from the pin is brought about by the movement of a mobile punch of constant section moving in a secondary mould and coupled mechanically to the tube. The movement of the punch may be used to control the advance of the injected material into the mould. A long stalk such as is used to hold spectacle frames can be made in one process with a small hole through it to hold a pin without risking the de-centering of the pin due to the moulding pressure.
FR7026296A 1970-07-08 1970-07-08 Injection moulding of long hollow rods esp - spectacle frames Expired FR2055248A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7026296A FR2055248A5 (en) 1970-07-08 1970-07-08 Injection moulding of long hollow rods esp - spectacle frames

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7026296A FR2055248A5 (en) 1970-07-08 1970-07-08 Injection moulding of long hollow rods esp - spectacle frames

Publications (1)

Publication Number Publication Date
FR2055248A5 true FR2055248A5 (en) 1971-05-07

Family

ID=9058773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7026296A Expired FR2055248A5 (en) 1970-07-08 1970-07-08 Injection moulding of long hollow rods esp - spectacle frames

Country Status (1)

Country Link
FR (1) FR2055248A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000960A1 (en) * 1988-07-27 1990-02-08 Glocker, Raymond A process for producing thin walled tubes with connecting elements by injection moulding, the tubes thus produced and their use as indwelling vein cannulas
WO2019223926A1 (en) * 2018-05-23 2019-11-28 Leoni Kabel Gmbh Method and device for shaping an elongated component

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000960A1 (en) * 1988-07-27 1990-02-08 Glocker, Raymond A process for producing thin walled tubes with connecting elements by injection moulding, the tubes thus produced and their use as indwelling vein cannulas
WO2019223926A1 (en) * 2018-05-23 2019-11-28 Leoni Kabel Gmbh Method and device for shaping an elongated component
CN112236284A (en) * 2018-05-23 2021-01-15 莱尼电缆有限公司 Method and apparatus for forming elongated members
US11541582B2 (en) 2018-05-23 2023-01-03 Leoni Kabel Gmbh Device for shaping an elongated component

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse