JPS58193128A - Cleaning method of extrusion-molding metal die - Google Patents

Cleaning method of extrusion-molding metal die

Info

Publication number
JPS58193128A
JPS58193128A JP57076318A JP7631882A JPS58193128A JP S58193128 A JPS58193128 A JP S58193128A JP 57076318 A JP57076318 A JP 57076318A JP 7631882 A JP7631882 A JP 7631882A JP S58193128 A JPS58193128 A JP S58193128A
Authority
JP
Japan
Prior art keywords
mold
extrusion
metal die
thermosetting resin
immediately before
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.)
Pending
Application number
JP57076318A
Other languages
Japanese (ja)
Inventor
Takayuki Nakamura
隆行 中村
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP57076318A priority Critical patent/JPS58193128A/en
Publication of JPS58193128A publication Critical patent/JPS58193128A/en
Pending 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To clean simply a metal die in a short time without injuring the die by extruding thermoplastic resin material immediately before the extrusion molding of the forming material such as thermosetting resin is finished. CONSTITUTION:For instance, immediately before the kneading extrusion of the forming material such as thermosetting resin is finished, the thermoplastic resins (e.g. polystyrene, polyacryl, acrylic nitrile-butadiene copolymer, nylone cellulose resin, polyetyrene and polypropylene, etc.) which is added with calcium carbonate etc. is extruded. Then, the metal die is dipped into the solution of toluene, etc.

Description

【発明の詳細な説明】 本発明は熱硬化性樹脂成形材料の＃出成形用金型の清掃
方法に関するもので、その呂的とするところは押出成形
終了後の金型清掃作業や材料切換え時の金型清掃作鑵を
＄Ｊ［Ｌ、作業時間を短縮させ更に金型清掃時の金畠傷
っけを防止することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for cleaning a mold for molding a thermosetting resin molding material, and its main purpose is to clean the mold after the end of extrusion molding or when changing materials. The purpose of cleaning the mold is to shorten the working time and prevent damage to the mold during mold cleaning.

従来、熱硬化性樹脂成形の混練押出成彩、造粒押出成形
等の押出成形後、金型を清掃する方法としては金型を高
温に加熱して金型内に充填されている熱硬化性ｗ詣成形
材料を廣化成は劣化させてから金属棒で少量づつ除去し
たり、金型を溶剤中に長期間浸漬し膨潤軟化させてから
少量づつ除去したりしていたが清掃作業は困難で長時間
を要し〆に金型を傷つけることが＃Ｉ発していた。Conventionally, after extrusion molding such as kneading extrusion coloring and granulation extrusion molding of thermosetting resin molding, the method of cleaning the mold is to heat the mold to a high temperature and use thermosetting resin filled in the mold. Hirokasei used to degrade the molding material and then remove it little by little with a metal rod, or immerse the mold in a solvent for a long time to swell and soften it, then remove it little by little, but cleaning was difficult. Problem #I was that it took a long time to finish and damaged the mold.

本発明の方法は皇紀欠点を解決するもので熱硬化性樹脂
成形材料押出成形の終了直前に熱可塑性樹脂を主体とす
る材料で押出成形しておくことＫより金型の清掃は１合
型を溶剤に浸漬する丈で金型内に充填されている材料を
容易に除去することができ為ので金型清掃作業が闇単に
なり時間を着るしく短縮することができ１！に金型を傷
つけることがなくなったものである。The method of the present invention solves the drawbacks of the imperial era, and requires extrusion molding with a thermoplastic resin-based material immediately before the end of extrusion of the thermosetting resin molding material. Since the material filled in the mold can be easily removed by soaking it in the solvent, the mold cleaning work becomes simpler and the time can be considerably shortened.1! This eliminates the possibility of damaging the mold.

以［本発明の詳細な説明する。本発明に用いる熱可塑性
樹脂はポリビニル基型合体、ポリアクリル、アクリルニ
トリルブタジェンスチレン共重合体、ナイロン・セルロ
ーズ系樹脂、ポリエチレン。The present invention will now be described in detail. Thermoplastic resins used in the present invention include polyvinyl group, polyacrylic, acrylonitrile butadiene styrene copolymer, nylon/cellulose resin, and polyethylene.

ポリプロピレン等のように熱可塑性樹脂であるならばよ
（特に限定するものでｔまない。As long as it is a thermoplastic resin such as polypropylene (there is no particular limitation).

−に熱−化性樹脂成形材料の金型付着性が大なる場合は
付蕾性に応じて必要量の炭酸カルシウム。- If the mold adhesion of the thermosetting resin molding material is large, add the necessary amount of calcium carbonate depending on the bud formation property.

シリカ等の充填剤を加えてなる熱可塑性樹脂を主体とす
る材料で熱硬化性樹脂成形材料押出成形の終了直前に押
出成形し金型から熱硬化性樹脂成形材料を除去する清掃
方法である。This is a cleaning method in which thermosetting resin molding material is extruded using a material mainly made of thermoplastic resin with fillers such as silica added thereto, and the thermosetting resin molding material is removed from the mold immediately before the end of extrusion molding.

以下本発明の方法を実施例にもとすいて説明する。The method of the present invention will be explained below using Examples.

不飽和ポリニスデル樹脂成形材料の混練押出の終了直前
に、ポリメチ２２１００重量Ｓ（以下単に部と起す）に
対し炭酸カルシウム粉部を加えた材料で押出成形してお
いてから金型をトルエン中に浸漬し九ところ金型内に充
填されていえ上記材料が賽易に溶解し金型清掃作業を簡
単、短時間に且つ金型を全く偶つけることなく行なうこ
とができた。Immediately before the end of kneading and extrusion of the unsaturated polynisder resin molding material, extrusion molding is performed using a material obtained by adding a part of calcium carbonate powder to Polymethy 22100 weight S (hereinafter simply referred to as part), and then the mold is immersed in toluene. However, even though the material was filled in the mold, it was easily dissolved, and the mold cleaning work could be carried out easily and in a short time without any accidental damage to the mold.

実施例２ フェノール樹脂成形材料の造粒押出成形の終了［ｄ［１
１ｆに、ボ＋４４化ビニル１００　％に対しクレー回部
を加えた材料で押出成形しておいてふら金型をアセトン
中に浸漬したところ金型内に充填されていた上記材料が
容易に溶解し、Ｉｋ型清掃作業を簡単。Example 2 Completion of granulation and extrusion molding of phenolic resin molding material [d[1
1F was extruded with a material made of 100% polyvinyl chloride plus a clay part, and when the mold was immersed in acetone, the material filled in the mold was easily dissolved. , Ik type cleaning work is easy.

短時間に且つ金型を全く傷つけることなく行なうことが
できた。This could be done in a short time and without damaging the mold at all.

上記実施例１及び８を従来おこなわれていた金型を加熱
し金型内に充填されている熱硬化性樹脂成形材料を炭化
して除去する方法と比較してみると本発明の方法は清掃
作業を簡単、短時間にしかも金型を傷つけることなく行
なうことができ１本発明の押出成形用金型の清掃方法の
優れていることを確認した。Comparing the above Examples 1 and 8 with the conventional method of heating the mold and carbonizing and removing the thermosetting resin molding material filled in the mold, the method of the present invention shows that cleaning It was confirmed that the extrusion mold cleaning method of the present invention is superior because the work can be carried out easily and in a short time without damaging the mold.

特許出履人 松−Ｆ電工株式会社 代場人弁場士　竹　元　敏　丸 （ほか２名）patent issuer Matsu-F Electric Works Co., Ltd. Substitute Bento Attorney Toshimaru Takemoto (2 others)

Claims (1)

【特許請求の範囲】[Claims] ＋１）　　ＩＩＩ％硬化性樹脂成形材料御出成形の終了
直前に、熱可塑性樹脂を主体とする材料で押出成形して
清掃することを特徴とする押出成形用金型の清掃方法。+1) A method for cleaning an extrusion mold, which comprises extrusion molding with a material mainly consisting of a thermoplastic resin and cleaning it immediately before the end of molding.
JP57076318A 1982-05-06 1982-05-06 Cleaning method of extrusion-molding metal die Pending JPS58193128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57076318A JPS58193128A (en) 1982-05-06 1982-05-06 Cleaning method of extrusion-molding metal die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57076318A JPS58193128A (en) 1982-05-06 1982-05-06 Cleaning method of extrusion-molding metal die

Publications (1)

Publication Number Publication Date
JPS58193128A true JPS58193128A (en) 1983-11-10

Family

ID=13602016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57076318A Pending JPS58193128A (en) 1982-05-06 1982-05-06 Cleaning method of extrusion-molding metal die

Country Status (1)

Country Link
JP (1) JPS58193128A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432585A2 (en) * 1989-12-12 1991-06-19 Chisso Corporation A detergent resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432585A2 (en) * 1989-12-12 1991-06-19 Chisso Corporation A detergent resin composition
EP0432585A3 (en) * 1989-12-12 1991-11-27 Chisso Corporation A detergent resin composition

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