JPS57128517A - Blow molding method for bent article - Google Patents

Blow molding method for bent article

Info

Publication number
JPS57128517A
JPS57128517A JP56015299A JP1529981A JPS57128517A JP S57128517 A JPS57128517 A JP S57128517A JP 56015299 A JP56015299 A JP 56015299A JP 1529981 A JP1529981 A JP 1529981A JP S57128517 A JPS57128517 A JP S57128517A
Authority
JP
Japan
Prior art keywords
split
parison
mold parts
main part
suction
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.)
Granted
Application number
JP56015299A
Other languages
Japanese (ja)
Other versions
JPS5847337B2 (en
Inventor
Ushigoro Sumitomo
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 JP56015299A priority Critical patent/JPS5847337B2/en
Publication of JPS57128517A publication Critical patent/JPS57128517A/en
Publication of JPS5847337B2 publication Critical patent/JPS5847337B2/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/4242Means for deforming the parison prior to the blowing operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04Extrusion blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/4242Means for deforming the parison prior to the blowing operation
    • B29C49/4244Means for deforming the parison prior to the blowing operation during or after laying preform into the final mould
    • B29C49/4245Means for deforming the parison prior to the blowing operation during or after laying preform into the final mould aided by air floating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42Component parts, details or accessories; Auxiliary operations
    • B29C49/4242Means for deforming the parison prior to the blowing operation
    • B29C49/4244Means for deforming the parison prior to the blowing operation during or after laying preform into the final mould
    • B29C49/42454The mould opening plane being vertical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/004Bent tubes

Abstract

PURPOSE:To obtain a bent article by a method wherein a mold is composed of upper split-mold parts, lower split-mold parts and main split-mold parts, where the main split-mold parts are mated to each other so as to form a cavity main part, therein and after downwardly inserting a parison into the cavity main part while applying a suction at a lower end of the cavity main part, the upper and lower split-mold parts are clamped and air is blown in. CONSTITUTION:The main split-mold parts 6, 6 are mated to each other with their mating surfaces 7, 7 directed vertically, thereby forming therein the cavity main part 8 having both upper and lower ends opened. Then, while extruding the parison 10 from an extrusion die 9 of an extruder for a synthetic resin, the parison is downwardly introduced into the cavity main part 8 via the upper open end and a suction is applied by fitting a suction pipe 11 of a suction device to the lower open end of the cavity main part 8. The parison 10 is thus inserted into the ?-shaped cavity main part 8 by the effect of the suction. When the lower end of the parison is protruded from the lower open end by an appropriate length, the suction is stopped, the upper split-mold parts 4, 4 and the lower split-mold parts 5, 5 are clamped respectively, and the parison is blow molded by blowing air into the inside of the parison through an air pin 12.
JP56015299A 1981-02-04 1981-02-04 Blow molding method for bent products Expired JPS5847337B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015299A JPS5847337B2 (en) 1981-02-04 1981-02-04 Blow molding method for bent products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015299A JPS5847337B2 (en) 1981-02-04 1981-02-04 Blow molding method for bent products

Publications (2)

Publication Number Publication Date
JPS57128517A true JPS57128517A (en) 1982-08-10
JPS5847337B2 JPS5847337B2 (en) 1983-10-21

Family

ID=11884935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015299A Expired JPS5847337B2 (en) 1981-02-04 1981-02-04 Blow molding method for bent products

Country Status (1)

Country Link
JP (1) JPS5847337B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59214626A (en) * 1983-05-23 1984-12-04 Nippon Plast Co Ltd Mold for three-dimensional blown item
JPS60101025A (en) * 1983-11-08 1985-06-05 Ushigoro Sumitomo Blow molding apparatus for bent article
JPS61287709A (en) * 1986-04-18 1986-12-18 Ushigoro Sumitomo Method and split mold therefor for setting seal parison into mold nest in blow molding
EP0705678A1 (en) * 1994-10-03 1996-04-10 Draftex Industries Limited Apparatus and method for blow moulding three dimensional objects
US7001566B2 (en) 2000-02-14 2006-02-21 Etimex Technical Components Gmbh Blow molding apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59214626A (en) * 1983-05-23 1984-12-04 Nippon Plast Co Ltd Mold for three-dimensional blown item
JPS60101025A (en) * 1983-11-08 1985-06-05 Ushigoro Sumitomo Blow molding apparatus for bent article
JPS63215B2 (en) * 1983-11-08 1988-01-06 Ushigoro Sumitomo
JPS61287709A (en) * 1986-04-18 1986-12-18 Ushigoro Sumitomo Method and split mold therefor for setting seal parison into mold nest in blow molding
EP0705678A1 (en) * 1994-10-03 1996-04-10 Draftex Industries Limited Apparatus and method for blow moulding three dimensional objects
US5700498A (en) * 1994-10-03 1997-12-23 Draftex Industries Limited Molding apparatus
US7001566B2 (en) 2000-02-14 2006-02-21 Etimex Technical Components Gmbh Blow molding apparatus

Also Published As

Publication number Publication date
JPS5847337B2 (en) 1983-10-21

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