[go: up one dir, main page]

JPS6112778B2 - - Google Patents

Info

Publication number
JPS6112778B2
JPS6112778B2 JP54040628A JP4062879A JPS6112778B2 JP S6112778 B2 JPS6112778 B2 JP S6112778B2 JP 54040628 A JP54040628 A JP 54040628A JP 4062879 A JP4062879 A JP 4062879A JP S6112778 B2 JPS6112778 B2 JP S6112778B2
Authority
JP
Japan
Prior art keywords
section
shaped
cross
extrusion molding
notches
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
JP54040628A
Other languages
English (en)
Other versions
JPS55132228A (en
Inventor
Yasunori Saito
Takeshi Matsuzaki
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP4062879A priority Critical patent/JPS55132228A/ja
Publication of JPS55132228A publication Critical patent/JPS55132228A/ja
Publication of JPS6112778B2 publication Critical patent/JPS6112778B2/ja
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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は、断面がＵ字形でありその開口部の幅
が狭小であるプラスチツク成形物の連続的製法に
関する。この成形部材は、各種装置の突出部や筐
体類のエツジ部などの保護材として用いられる。
従来、この種の部材は規定寸法、形状の金型を
用いてモールド法にて製造されており、製造効率
面、コスト面で不利であつた。
本発明は、上記のＵ字形合成樹脂部材を押出成
形法によつて連続的、効率的に製造する方法を提
供する。第１図に示す如く、断面が中空ひようた
ん形の樹脂管を押出成形法によつて成形した後、
このひようたん形樹脂管を断面狭小部に沿つて切
断して第２図および第３図に示す形状の２条のＵ
字形成形物を同時に連続して得ることが可能であ
る。
第１図のｂ，ｃに示したように、樹脂管の断面
狭小部の対向する２ケ所の内面または外面あるい
はその両面に切欠部を有するように押出成形し、
この部分で２分割する場合には、切断が容易にな
るだけでなく第２図のｂ，ｃに示した如く、先端
開口部の内面または外面あるいはその両面にテー
パがついた構造となるのでＵ字形部材の保護物品
への装着が容易となるという特長を有する。
ひようたん形の断面の樹脂管を押出成形するに
は、第４図に示したような形状の押出用ダイスと
この形状を保持できるような形状に加工された成
形ダイを用いた加（内）圧成形法あるいは真空吸
引成形法などの周知の成形法を採用すれば容易に
実現できる。第４図における１はダイスの材料吐
出口を示す。
上述のように、本発明によるＵ字形合成樹脂成
形物の製造方法は従来方法に比べて加工工数を大
幅に減らして、同時に２条を連続して製造し得る
ため、加工費の著しい低減がはかれるという特長
を有する。
【図面の簡単な説明】
第１図は本発明にかかる成形物の押出成形直後
の断面図、第２図は本発明にかかる成形物の断面
図、第３図は本発明にかかる成形物の斜視図、第
４図は本発明にかかる成形物を押出す時に使用す
るダイス形状で１は材料吐出口を示す。

Claims (1)

  1. 【特許請求の範囲】 １ 断面が中空ひようたん形の熱可塑性樹脂管を
    押出成形し、断面狭小部に沿つて切断して２条の
    成形品を得ることを特徴とするＵ字形合成樹脂成
    形物の連続的製造方法。 ２ 断面が中空ひようたん形の樹脂管の断面狭小
    部の対向する２ケ所の内面または外面あるいはそ
    の両面に切欠部を有するように熱可塑性樹脂管を
    押出成形し、前記切欠部を切断することを特徴と
    する特許請求の範囲第１項記載のＵ字形合成樹脂
    成形物の連続製造方法。
JP4062879A 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece Granted JPS55132228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4062879A JPS55132228A (en) 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4062879A JPS55132228A (en) 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece

Publications (2)

Publication Number Publication Date
JPS55132228A JPS55132228A (en) 1980-10-14
JPS6112778B2 true JPS6112778B2 (ja) 1986-04-10

Family

ID=12585798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4062879A Granted JPS55132228A (en) 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece

Country Status (1)

Country Link
JP (1) JPS55132228A (ja)

Also Published As

Publication number Publication date
JPS55132228A (en) 1980-10-14

Similar Documents

Publication Publication Date Title
US5171499A (en) Method of forming strip products from thermoplastic materials
CA1328968C (en) Decorative plastic trim strip and method and apparatus for forming
US5227108A (en) Method of forming decorative trim strips
US5705236A (en) Injection molded part with continuous formed molding end
KR960020839A (ko) 면파스너 제조 방법 및 장치
JP3338867B2 (ja) プラスチック容器とその製造用金型
US5149478A (en) Forming decorative trim strips from continuous extrusions
JPS6112778B2 (ja)
JPS6112777B2 (ja)
CA2017526A1 (en) Extrusion shaping method
JPS5842110Y2 (ja) 押出成型用ダイス
JPH09267409A (ja) 波形管の成形型
JPS63290714A (ja) 自動車用ウエザストリップのコ−ナ成形方法
JPS5876244A (ja) 複数材の押出成形法及び装置
JPS5514170A (en) Extruding method for profile of same or different shape with same die
JP3569932B2 (ja) 筒状熱可塑性発泡樹脂成形品の成形用金型および製造方法
JPS60190323A (ja) 外表面に凹凸模様を有する弾性チユ−ブの製法
JPH0359816B2 (ja)
JPH0740414A (ja) 管状フランジ部材の製造方法
JPH0120980B2 (ja)
JP3037817B2 (ja) 中空品の連続押出成形方法
US4681525A (en) Apparatus for molding plastic products
JPS6067122A (ja) モ−ルデイングの製造方法
KR980008387A (ko) 송풍팬용 블레이드의 제조방법
JPS57146636A (en) Manufacture of reticular object of thermoplastic resin