FR2509220B3 - - Google Patents

Info

Publication number
FR2509220B3
FR2509220B3 FR8113308A FR8113308A FR2509220B3 FR 2509220 B3 FR2509220 B3 FR 2509220B3 FR 8113308 A FR8113308 A FR 8113308A FR 8113308 A FR8113308 A FR 8113308A FR 2509220 B3 FR2509220 B3 FR 2509220B3
Authority
FR
France
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
FR8113308A
Other versions
FR2509220A1 (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.)
HOLDT JOHN VON
Original Assignee
HOLDT JOHN VON
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 HOLDT JOHN VON filed Critical HOLDT JOHN VON
Priority to FR8113308A priority Critical patent/FR2509220A1/fr
Publication of FR2509220A1 publication Critical patent/FR2509220A1/fr
Application granted granted Critical
Publication of FR2509220B3 publication Critical patent/FR2509220B3/fr
Granted 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
FR8113308A 1981-07-07 1981-07-07 Noyau de moule demontable, notamment pour matieres plastiques Granted FR2509220A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8113308A FR2509220A1 (fr) 1981-07-07 1981-07-07 Noyau de moule demontable, notamment pour matieres plastiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8113308A FR2509220A1 (fr) 1981-07-07 1981-07-07 Noyau de moule demontable, notamment pour matieres plastiques

Publications (2)

Publication Number Publication Date
FR2509220A1 FR2509220A1 (fr) 1983-01-14
FR2509220B3 true FR2509220B3 (fr) 1984-05-11

Family

ID=9260278

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8113308A Granted FR2509220A1 (fr) 1981-07-07 1981-07-07 Noyau de moule demontable, notamment pour matieres plastiques

Country Status (1)

Country Link
FR (1) FR2509220A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ217279A (en) * 1985-08-30 1988-06-30 Clarke R & Co Ltd Collapsible mould core
US4867671A (en) * 1986-10-11 1989-09-19 U.C. Industry Co., Ltd. Apparatus for manufacturing resin tube
CN109434028A (zh) * 2018-12-29 2019-03-08 广东肇庆动力金属股份有限公司 一种具有收缩功能的内芯模
CN109434027A (zh) * 2018-12-29 2019-03-08 广东肇庆动力金属股份有限公司 一种内芯模
CN109465400A (zh) * 2018-12-29 2019-03-15 广东肇庆动力金属股份有限公司 一种可收缩的内芯模
CN110509501B (zh) * 2019-08-29 2024-05-10 广东机电职业技术学院 一种对插式滑动侧凹模具机构和控制方法

Also Published As

Publication number Publication date
FR2509220A1 (fr) 1983-01-14

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