JP2001315187A - Method and apparatus for forming plastic polymeric material - Google Patents

Method and apparatus for forming plastic polymeric material

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Publication number
JP2001315187A
JP2001315187A JP2000139070A JP2000139070A JP2001315187A JP 2001315187 A JP2001315187 A JP 2001315187A JP 2000139070 A JP2000139070 A JP 2000139070A JP 2000139070 A JP2000139070 A JP 2000139070A JP 2001315187 A JP2001315187 A JP 2001315187A
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JP
Japan
Prior art keywords
plastic polymer
polymer material
opening
shape
final cross
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
JP2000139070A
Other languages
Japanese (ja)
Inventor
Yasushi Ota
康 大田
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP2000139070A priority Critical patent/JP2001315187A/en
Publication of JP2001315187A publication Critical patent/JP2001315187A/en
Pending legal-status Critical Current

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  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To manufacture a plastic polymeric material having a stable shape and high quality without increasing a processing cost and lowering productivity. SOLUTION: An extrusion hole 26, of which the shape is made similar to a shape wherein predetermined strip-like materials are connected so that the thin-wall parts of two cross-sectional shapes thereof are opposed to each other and the linear sides of them are opposed to each other, is formed to the cap 24 of an extruder and a wire 44 is arranged along the center line of the extrusion hole 26. The rubber member discharged from the extrusion hole 26 is cut by the linearly tensioned wire 44 immediately after the discharge from the extrusion hole 26 so that the linear part of a final cross-sectional shape is set to a cutting surface to obtaian two strip-like members.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、可塑性高分子材料
の形成方法および可塑性高分子材料の形成装置に係り、
特に、厚肉部分と薄肉部分とが混在する帯状の可塑性高
分子材料を押出しにより製造する際に好適な可塑性高分
子材料の形成方法および可塑性高分子材料の形成装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for forming a plastic polymer material.
In particular, the present invention relates to a method and an apparatus for forming a plastic polymer material suitable for producing a strip-shaped plastic polymer material having a mixture of a thick portion and a thin portion by extrusion.

【０００２】[0002]

【従来の技術】生タイヤは、一般に知られているよう
に、種々の未加硫の帯状ゴム部材、プライ、ビードコア
等から構成されている。2. Description of the Related Art As is generally known, a green tire is composed of various unvulcanized belt-like rubber members, plies, bead cores and the like.

【０００３】帯状ゴム部材としては、トップトレッド
用、サイドトレッド用、ビードフィラー用、インナーラ
イナー用等があり、各々断面形状が異なっている。[0003] There are belt-shaped rubber members for top tread, side tread, bead filler, inner liner, and the like, each having a different cross-sectional shape.

【０００４】例えば、ビードフィラー用の帯状ゴム部材
の断面形状は、細長い略三角形状を呈している。For example, the cross-sectional shape of a belt-shaped rubber member for a bead filler has an elongated, substantially triangular shape.

【０００５】ビードフィラーの断面形状は、タイヤの種
類、サイズ等によって種々異なるが、近年では、軽量
化、ゴム部材の境界の段差を低減させるため、部分的に
その厚さを極端に薄く設計する場合がある。[0005] The cross-sectional shape of the bead filler varies depending on the type and size of the tire, but in recent years, in order to reduce the weight and reduce the step at the boundary of the rubber member, the thickness of the bead filler is partially designed to be extremely thin. There are cases.

【０００６】[0006]

【発明が解決しようとする課題】例えば、押出機を用い
て口金からゴム部材を押出成型する場合、ビードフィラ
ー用の帯状ゴム部材で薄型形状部分の形状を確保するに
は、ア）ゴム粘度を下げて流動性を上げる、イ）ゴム温
度を上げてゴム流動性を上げる、等の方法を加えて加工
されるが、ゴム供給工程（精錬工程）で、多大なエネル
ギーを消費し、加工コストが上がるだけでなく、地球環
境の面からも好ましくない。For example, when a rubber member is extruded from a mouthpiece using an extruder, in order to secure the shape of a thin portion with a band-shaped rubber member for a bead filler, a) the rubber viscosity must be adjusted. It is processed by adding methods such as lowering the fluidity by raising the temperature, and a) increasing the rubber fluidity by increasing the rubber temperature. However, a large amount of energy is consumed in the rubber supply process (refining process), and the processing cost is reduced. It is not only unfavorable from the viewpoint of global environment but also rising.

【０００７】また、吐出時にゴム温度が上昇し、ゴムが
押出機内でスコーチするため、ゴムが口金の薄型部分に
詰まり、薄型部分の破れを生じさせる場合がある。[0007] Further, the rubber temperature rises at the time of discharge and the rubber scorches in the extruder, so that the rubber may clog the thin portion of the base and break the thin portion.

【０００８】これらの妥協点で、押出スピードを決めて
いるので、生産性を阻害させる要因となっている。[0008] Since the extrusion speed is determined based on these compromises, it is a factor that hinders productivity.

【０００９】また、ゴム（特に天然ゴム）中の砂等の異
物も薄型形状部に詰まり破れを生じさせるため、ストレ
ーナーでの除去が必要で、このときにスコーチの原因に
もなり、押出しスピードを低下させる要因となる。In addition, foreign matters such as sand in rubber (particularly natural rubber) are also clogged in the thin-shaped portion and cause breakage. Therefore, removal by a strainer is necessary. It becomes a factor to lower.

【００１０】生産性を向上するために、通常は図１２
（Ａ）に示すように一つの口金に対して一つの押出し孔
１００から帯状部材１０２を押出すところを、図１２
（Ｂ）に示すように一つの口金から帯状部材１０２を幅
方向に２つ連結させたような形状の帯状部材１０６を押
出す押出し孔１０４を使用することが考えられる。[0010] To improve the productivity, FIG.
As shown in FIG. 12 (A), the belt member 102 is extruded from one extrusion hole 100 to one die.
As shown in (B), it is conceivable to use an extrusion hole 104 for extruding a band-shaped member 106 having a shape in which two band-shaped members 102 are connected in a width direction from one base.

【００１１】しかし、押出し孔１０４は、押出し孔１０
０を長手方向に２つ連結したような形状であるため、幅
寸法が大きくなり、押出機の押出しヘッド（口金の取り
付け部分）が大型化する問題がある。However, the extrusion hole 104 is not
0 is connected in the longitudinal direction, so that the width dimension becomes large, and there is a problem that the extrusion head (the mounting portion of the die) of the extruder becomes large.

【００１２】なお、プロファイルカレンダーを用いて成
型する場合も、上記押出機と同様の問題を生じる。[0012] In the case of molding using a profile calender, the same problems as those in the above-described extruder occur.

【００１３】本発明は上記事実に鑑みてなされたもので
あり、形状の安定した高品質の可塑性高分子材料を加工
コストを上げず、また生産性を下げずに製造することの
できる可塑性高分子材料の形成方法および可塑性高分子
材料の形成装置を提案することが目的である。The present invention has been made in view of the above-mentioned circumstances, and has been made in view of the above-mentioned circumstances, and is a plastic polymer capable of producing a high-quality plastic polymer material having a stable shape without increasing the processing cost and without lowering the productivity. It is an object to propose a method for forming a material and an apparatus for forming a plastic polymer material.

【００１４】[0014]

【課題を解決するための手段】請求項１に係る発明は、
可塑性高分子材料を開口部より連続的に押出し製造する
可塑性高分子材料の形成方法であって、最終断面形状を
厚さ方向に少なくとも２つ以上連結した形状と相似の形
状を有する開口部より可塑性高分子材料を押出し、前記
開口部より押出された可塑性高分子材料を開口部の下流
側に設けた分割手段で最終断面形状を有する複数の可塑
性高分子材料に分割することを特徴としている。The invention according to claim 1 is
A method for forming a plastic polymer material by continuously extruding and manufacturing a plastic polymer material from an opening, wherein the plastic material has a shape similar to a shape obtained by connecting at least two or more final cross-sectional shapes in a thickness direction. The polymer material is extruded, and the plastic polymer material extruded from the opening is divided into a plurality of plastic polymer materials having a final cross-sectional shape by dividing means provided on the downstream side of the opening.

【００１５】次に、請求項１に記載の可塑性高分子材料
の形成方法を説明する。Next, a method for forming the plastic polymer material according to claim 1 will be described.

【００１６】この発明によれば、最終断面形状を厚さ方
向に少なくとも２つ以上連結した形状と相似の形状を有
する開口部より可塑性高分子材料が押出され、開口部よ
り押出された可塑性高分子材料は、開口部の下流側に設
けた分割手段で最終断面形状を有する複数の可塑性高分
子材料に分割される。According to the present invention, the plastic polymer material is extruded from the opening having a shape similar to a shape obtained by connecting at least two or more of the final cross sections in the thickness direction, and the plastic polymer extruded from the opening. The material is divided into a plurality of plastic polymer materials having a final cross-sectional shape by dividing means provided on the downstream side of the opening.

【００１７】開口部の形状を、可塑性高分子材料の最終
断面形状を厚さ方向に少なくとも２つ以上連結した形状
と相似形状とすることにより、最終断面形状を有する可
塑性高分子材料を一つのみ押出す開口部と比較して、最
も幅狭の部分の寸法が大きくなり、可塑性高分子材料を
スムーズに排出し易くなる。The shape of the opening is made similar to a shape obtained by connecting at least two or more of the final cross-sectional shape of the plastic polymer material in the thickness direction, so that only one plastic polymer material having the final cross-sectional shape is obtained. Compared with the opening to be extruded, the dimension of the narrowest part is larger, and the plastic polymer material is easily discharged smoothly.

【００１８】このため、ゴム粘度を下げて流動性を上げ
たり、ゴム温度を上げてゴム流動性を上げる、等の方法
を加える必要がなく、また、ゴムが押出機内でスコーチ
しにくくなりゴムが口金の薄型部分に詰まる等の不具合
が生じ難くなり、さらに、薄型部分に異物が引っ掛から
ないようにゴム中の異物を取り除く目の細かいストレー
ナーを設けたために生じるスコーチの発生問題を更に回
避することができる。Therefore, there is no need to add a method of lowering the viscosity of the rubber to increase the fluidity or increasing the rubber temperature to increase the fluidity of the rubber. Problems such as clogging in the thin portion of the base are less likely to occur, and furthermore, it is possible to further avoid the problem of scorch generation caused by providing a fine strainer for removing foreign matter in rubber so that foreign matter is not caught in the thin portion. it can.

【００１９】また、開口部の下流側（開口部近傍が好ま
しい）で可塑性高分子材料を切断分割するので、切断時
に、薄肉部分を大きく変形させることが無い。Further, since the plastic polymer material is cut and divided on the downstream side of the opening (preferably near the opening), the thin portion is not largely deformed at the time of cutting.

【００２０】なお、ここでいう厚さ方向とは、最終断面
形状の長手方向（最大寸法方向）と交差する方向の寸法
を指す。Here, the thickness direction refers to a dimension in a direction intersecting the longitudinal direction (maximum dimension direction) of the final sectional shape.

【００２１】請求項２に記載の発明は、薄肉部分と厚肉
部分とが混在した断面形状を備える可塑性高分子材料を
開口部より連続的に押出し製造する可塑性高分子材料の
形成方法であって、前記可塑性高分子材料の最終断面形
状における最薄肉部分同士または最薄肉部分と最薄肉部
分以外の部分とが対向するように、少なくとも前記最終
断面形状を２つ以上連結した形状と相似の形状を有する
開口部より可塑性高分子材料を押出し、前記開口部より
押出された可塑性高分子材料を開口部の下流側に設けた
分割手段で最終断面形状を有する複数の可塑性高分子材
料に分割することを特徴としている。According to a second aspect of the present invention, there is provided a method of forming a plastic polymer material, wherein a plastic polymer material having a cross-sectional shape in which a thin portion and a thick portion are mixed is continuously extruded from an opening. A shape similar to a shape obtained by connecting at least two or more of the final cross-sectional shapes such that the thinnest portions of the plastic polymer material in the final cross-sectional shape are opposite to each other or the portions other than the thinnest portion and the thinnest portion are opposite to each other. Extruding the plastic polymer material from the opening having, and dividing the plastic polymer material extruded from the opening into a plurality of plastic polymer materials having a final cross-sectional shape by dividing means provided on the downstream side of the opening. Features.

【００２２】次に、請求項２に記載の可塑性高分子材料
の形成方法を説明する。Next, a method of forming the plastic polymer material according to claim 2 will be described.

【００２３】この発明によれば、可塑性高分子材料の最
終断面形状における最薄肉部分同士または最薄肉部分と
最薄肉部分以外の部分とが対向するように、最終断面形
状を厚さ方向に少なくとも２つ以上連結した形状と相似
の形状を有する開口部より可塑性高分子材料が押出さ
れ、開口部より押出された可塑性高分子材料は、開口部
の下流側に設けた分割手段で最終断面形状を有する複数
の可塑性高分子材料に分割される。According to the present invention, the final cross-sectional shape is at least two in the thickness direction such that the thinnest portions of the plastic polymer material in the final cross-sectional shape or the thinnest portions and the portions other than the thinnest portion face each other. A plastic polymer material is extruded from an opening having a shape similar to one or more connected shapes, and the plastic polymer material extruded from the opening has a final cross-sectional shape by dividing means provided downstream of the opening. It is divided into a plurality of plastic polymer materials.

【００２４】開口部を、可塑性高分子材料の最終断面形
状における最薄肉部分同士または最薄肉部分と最薄肉部
分以外の部分とが対向するように、可塑性高分子材料の
最終断面形状を厚さ方向に少なくとも２つ以上連結した
形状と相似の形状とすることにより、最終断面形状を有
する可塑性高分子材料を一つのみ押出す開口部の開口と
比較して、最も幅狭の部分の寸法が大きくなり、可塑性
高分子材料をスムーズに排出し易くなる。[0024] The final cross-sectional shape of the plastic polymer material is set in the thickness direction so that the thinnest portions of the final cross-sectional shape of the plastic polymer material or the portions other than the thinnest portion and the thinnest portion in the final cross-sectional shape of the plastic polymer material face each other. By making the shape similar to the shape connected to at least two or more, compared to the opening of the opening for extruding only one plastic polymer material having the final cross-sectional shape, the dimension of the narrowest portion is larger. As a result, the plastic polymer material is easily discharged smoothly.

【００２５】このため、ゴム粘度を下げて流動性を上げ
たり、ゴム温度を上げてゴム流動性を上げる、等の方法
を加える必要がなく、また、ゴムが押出機内でスコーチ
しにくくゴムが口金の薄型部分に詰まる等の不具合が生
じ難くなり、さらに、薄型部分に異物が引っ掛からない
ようにゴム中の異物を取り除く目の細かいストレーナー
を設けたために生じるスコーチの発生問題を更に回避す
ることができる。For this reason, there is no need to add a method of lowering the viscosity of the rubber to increase the fluidity or increasing the rubber temperature to increase the fluidity of the rubber. This makes it difficult to cause problems such as clogging of the thin portion, and further can avoid the problem of scorch occurring due to the provision of a fine strainer for removing foreign matter in rubber so that foreign matter is not caught on the thin portion. .

【００２６】請求項３に記載の発明は、請求項１または
請求項２に記載の可塑性高分子材料の形成方法におい
て、前記開口部は、前記最終断面形状の直線部分同士が
対向した形状と相似の形状を有することを特徴としてい
る。According to a third aspect of the present invention, in the method for forming a plastic polymer material according to the first or second aspect, the opening is similar to a shape in which straight portions of the final cross-sectional shape face each other. It is characterized by having the following shape.

【００２７】次に、請求項３に記載の可塑性高分子材料
の形成方法を説明する。Next, a method for forming the plastic polymer material according to claim 3 will be described.

【００２８】請求項３に記載の可塑性高分子材料の形成
方法では、開口部より最終断面形状の直線部分同士が対
向した断面形状を有する可塑性高分子材料が排出され、
その後、その可塑性高分子材料が分割される。In the method for forming a plastic polymer material according to the third aspect, the plastic polymer material having a cross-sectional shape in which straight portions of the final cross-sectional shape face each other is discharged from the opening,
Thereafter, the plastic polymer material is divided.

【００２９】開口部より最終断面形状の直線部分同士が
対向した断面形状を有する可塑性高分子材料が排出され
るので、直線部分を切断面とするように可塑性高分子材
料を分割するので、可塑性高分子材料の分割が容易にな
る。Since the plastic polymer material having the cross-sectional shape in which the linear portions of the final cross-sectional shape are opposed to each other is discharged from the opening, the plastic polymer material is divided so that the linear portion is a cut surface. Separation of molecular materials is facilitated.

【００３０】請求項４に記載の発明は、可塑性高分子材
料を開口部より連続的に押出し製造する可塑性高分子材
料の形成装置であって、前記可塑性高分子材料の最終断
面形状における最薄肉部分同士または最薄肉部分と最薄
肉部分以外の部分とが対向するように、少なくとも前記
最終断面形状を２つ以上連結した形状と相似の形状を有
する開口部と、供給された可塑性高分子材料を前記開口
部へ向けて搬送する搬送手段と、前記開口部の下流側に
設けられ前記開口部より押出された可塑性高分子材料を
最終断面形状を有する複数の可塑性高分子材料に分割す
る分割手段と、を有することを特徴としている。According to a fourth aspect of the present invention, there is provided a plastic polymer material forming apparatus for continuously extruding and manufacturing a plastic polymer material from an opening, wherein the thinnest portion in the final cross-sectional shape of the plastic polymer material is provided. An opening having a shape similar to a shape obtained by connecting at least two of the final cross-sectional shapes so that the portions or portions other than the thinnest portion and the portion other than the thinnest portion face each other, and the supplied plastic polymer material is Conveying means for conveying toward the opening, and dividing means provided on the downstream side of the opening and dividing the plastic polymer material extruded from the opening into a plurality of plastic polymer materials having a final cross-sectional shape, It is characterized by having.

【００３１】次に、請求項４に記載の可塑性高分子材料
の形成装置の作用を説明する。Next, the operation of the apparatus for forming a plastic polymer material according to claim 4 will be described.

【００３２】この発明によれば、供給された可塑性高分
子材料は搬送手段により開口部へ向けて搬送され、開口
部と相似の断面形状を有した帯状部材として連続的に押
出し排出される。According to the present invention, the supplied plastic polymer material is conveyed toward the opening by the conveying means, and is continuously extruded and discharged as a band-shaped member having a cross-sectional shape similar to the opening.

【００３３】可塑性高分子材料は、可塑性高分子材料の
最終断面形状における最薄肉部分同士または最薄肉部分
と最薄肉部分以外の部分とが対向するように、少なくと
も最終断面形状を２つ以上連結した形状と相似の形状を
有する開口部より排出されるので、開口部より排出され
た可塑性高分子材料は、最終断面形状における最薄肉部
分同士または最薄肉部分と最薄肉部分以外の部分とが対
向した断面形状を有する。The plastic polymer material is formed by connecting at least two or more final cross-sectional shapes so that the thinnest portions of the plastic polymer material in the final cross-sectional shape or the portions other than the thinnest portion and the thinnest portion face each other. Since the plastic polymer material discharged from the opening is discharged from the opening having a shape similar to the shape, the thinnest portions of the final cross-sectional shape or portions other than the thinnest portion and the thinnest portion faced each other. It has a cross-sectional shape.

【００３４】最終断面形状における最薄肉部分同士また
は最薄肉部分と最薄肉部分以外の部分とが対向した断面
形状を有した可塑性高分子材料は、開口部の開口より連
続的に押出され、開口部の下流側に設けられた分割手段
により、最終断面形状を有する複数の可塑性高分子材料
に連続的に分割される。A plastic polymer material having a cross-sectional shape in which the thinnest portions of the final cross-sectional shape or portions other than the thinnest portion and the thinnest portion oppose each other is continuously extruded from the opening of the opening, and Is continuously divided into a plurality of plastic polymer materials having a final cross-sectional shape by a dividing means provided on the downstream side of.

【００３５】開口部を、可塑性高分子材料の最終断面形
状を厚さ方向に少なくとも２つ以上連結した形状と相似
形状とすることにより、最終断面形状を有する可塑性高
分子材料を一つのみ押出す開口部と比較して、最も幅狭
の部分の寸法が大きくなり、可塑性高分子材料をスムー
ズに排出し易くなる。By forming the opening in a shape similar to a shape obtained by connecting at least two or more of the final cross-sectional shape of the plastic polymer material in the thickness direction, only one plastic polymer material having the final cross-sectional shape is extruded. Compared with the opening, the dimension of the narrowest portion is larger, and the plastic polymer material is easily discharged smoothly.

【００３６】このため、ゴム粘度を下げて流動性を上げ
たり、ゴム温度を上げてゴム流動性を上げる、等の方法
を加える必要がなく、また、ゴムが押出機内でスコーチ
した場合にゴムが口金の薄型部分に詰まる等の不具合が
生じ難くなり、さらに、薄型部分に異物が引っ掛からな
いようにゴム中の異物を取り除く目の細かいストレーナ
ーを設けたために生じるスコーチの発生問題を回避する
ことができる。For this reason, there is no need to add a method such as lowering the viscosity of the rubber to increase the fluidity, or increasing the rubber temperature to increase the fluidity of the rubber. In addition, when the rubber scorches in the extruder, the rubber does not need to be added. Problems such as clogging of the thin portion of the base are less likely to occur, and furthermore, it is possible to avoid the problem of scorch caused by providing a fine strainer for removing foreign matter in rubber so that foreign matter is not caught on the thin portion. .

【００３７】また、開口部の下流側（開口部の近傍が好
ましい）で可塑性高分子材料を切断分割するので、切断
時に、薄肉部分を大きく変形させることが無い。Further, since the plastic polymer material is cut and divided on the downstream side (preferably near the opening) of the opening, the thin portion is not largely deformed at the time of cutting.

【００３８】請求項５に記載の発明は、請求項４に記載
の可塑性高分子材料の形成装置において、前記開口部
は、前記最終断面形状の直線部分同士が対向した形状と
相似の形状を有し、前記分割手段は、前記直線部分を切
断面とする直線状に張ったワイヤーであることを特徴と
している。According to a fifth aspect of the present invention, in the plastic polymer material forming apparatus according to the fourth aspect, the opening has a shape similar to a shape in which the linear portions of the final sectional shape are opposed to each other. The dividing means is a wire stretched in a straight line with the straight portion as a cut surface.

【００３９】次に、請求項５に記載の可塑性高分子材料
の形成装置の作用を説明する。Next, the operation of the plastic polymer material forming apparatus according to the fifth aspect will be described.

【００４０】この発明によれば、開口部より排出された
可塑性高分子材料は最終断面形状の直線部分同士が対向
した形状と相似の開口部より排出され、その後、直線状
に張られたワイヤーにより直線部分を切断面とするよう
に可塑性高分子材料が切断され分割される。According to the present invention, the plastic polymer material discharged from the opening is discharged from the opening similar to the shape in which the linear portions of the final cross-sectional shape are opposed to each other, and then the wire is stretched linearly. The plastic polymer material is cut and divided so that the straight portion is used as a cutting surface.

【００４１】ワイヤーは、開口部の下流側、即ち、可塑
性高分子材料の排出通過経路上に張られており、開口部
より排出直後の可塑性高分子材料は搬送手段による排出
移動力を有しているので、可塑性高分子材料を切断する
際の動力を別途必要としない。The wire is stretched on the downstream side of the opening, that is, on the discharge passage of the plastic polymer material, and the plastic polymer material immediately after being discharged from the opening has a discharge moving force by the conveying means. Therefore, no additional power is required for cutting the plastic polymer material.

【００４２】請求項６に記載の発明は、請求項４に記載
の可塑性高分子材料の形成装置において、前記開口部
は、前記最終断面形状の直線部分同士が対向した形状と
相似の形状を有し、前記分割手段は、前記直線部分を切
断面とする直線状に延びる薄肉の刃であることを特徴と
している。According to a sixth aspect of the present invention, in the plastic polymer material forming apparatus according to the fourth aspect, the opening has a shape similar to a shape in which the linear portions of the final cross-sectional shape face each other. The dividing means is a thin blade extending linearly with the straight portion as a cutting plane.

【００４３】次に、請求項６に記載の可塑性高分子材料
の形成装置の作用を説明する。Next, the operation of the apparatus for forming a plastic polymer material according to claim 6 will be described.

【００４４】この発明によれば、開口部より排出された
可塑性高分子材料は最終断面形状の直線部分同士が対向
した形状と相似の開口部より排出され、その後、直線状
に延びる薄肉の刃により直線部分を切断面とするように
可塑性高分子材料が切断され分割される。According to the present invention, the plastic polymer material discharged from the opening is discharged from the opening similar to the shape in which the linear portions of the final cross-sectional shape are opposed to each other, and then the thin-walled blade extending linearly. The plastic polymer material is cut and divided so that the straight portion is used as a cutting surface.

【００４５】刃は、開口部の下流側、即ち、可塑性高分
子材料の排出通過経路上に設けられており、開口部より
排出直後の可塑性高分子材料は搬送手段による排出移動
力を有しているので、可塑性高分子材料を切断する際の
動力を別途必要としない。The blade is provided on the downstream side of the opening, that is, on the discharge passage of the plastic polymer material. The plastic polymer material immediately after being discharged from the opening has a discharge moving force by the conveying means. Therefore, no additional power is required for cutting the plastic polymer material.

【００４６】[0046]

【発明の実施の形態】［第１の実施形態］以下に図面を
参照しながら本発明の第１の実施形態を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of the present invention will be described below with reference to the drawings.

【００４７】図２には、本発明が適用された押出機１０
の概略構成が示されている。FIG. 2 shows an extruder 10 to which the present invention is applied.
Is schematically shown.

【００４８】この押出機１０には、精練工程にて配合練
りされたゴム（練生地）を熱入工程で、熱入ロール又は
熱入用コールドチューバーを用いて練り熱入が行われた
ゴム生地が供給される。In the extruder 10, rubber (kneaded dough) compounded and kneaded in the scouring step is kneaded in a hot-filling step using a hot-roll or a hot-cold cold tuber. Is supplied.

【００４９】これによりゴム生地を柔らかくすると共に
配合薬品の分散を良化している。As a result, the rubber material is softened and the dispersion of the compounding chemicals is improved.

【００５０】また、このゴムは、押出しに先立ってスト
レーナに通されて異物の除去が行われる。The rubber is passed through a strainer prior to extrusion to remove foreign matter.

【００５１】この押出機１０は、図３に示されるような
薄肉部分４０Ａと厚肉部分４０Ｂとを備え、一辺が直線
形状とされた長尺の帯状部材４０を押出し形成するもの
である。The extruder 10 is provided with a thin portion 40A and a thick portion 40B as shown in FIG. 3, and extrudes a long strip-shaped member 40 having a straight side.

【００５２】本実施形態の帯状部材４０は、タイヤのビ
ードフィラー用のものである。The belt-shaped member 40 of this embodiment is for a bead filler of a tire.

【００５３】図２に示されるように、押出機１０は、押
出し部１２とダイヘッド部１４によって構成されてい
る。押出し部１２には、内部が円筒状の中空とされてい
るシリンダ１６が設けられており、このシリンダ１６の
内部にスクリュー１８が配置されている。As shown in FIG. 2, the extruder 10 includes an extruder 12 and a die head 14. The pushing section 12 is provided with a cylinder 16 having a cylindrical hollow inside, and a screw 18 is arranged inside the cylinder 16.

【００５４】この押出し部１２のシリンダ１６内部に
は、前記した熱入及び異物の除去が終了したゴム生地が
所定量ずつに切断され、ベルトコンベア等によって搬送
されて供給される。Into the inside of the cylinder 16 of the extruding section 12, the rubber material from which the above-mentioned heat-filling and removal of foreign matter have been completed is cut into predetermined amounts, and is conveyed and supplied by a belt conveyor or the like.

【００５５】押出し部１２では、図示しない駆動手段の
駆動力によってスクリュー１８を回転させ、シリンダ１
６の内部に供給されるゴム生地をダイヘッド部１４へ向
けて送出するようになっている（送出方向を図１の矢印
Ａで示す）。In the pushing section 12, the screw 18 is rotated by the driving force of a driving means (not shown),
The rubber cloth supplied to the inside of the cylinder 6 is sent to the die head section 14 (the sending direction is indicated by an arrow A in FIG. 1).

【００５６】このシリンダ１６の先端には、ダイヘッド
部１４のダイ２２が取り付けられている。The die 22 of the die head 14 is attached to the tip of the cylinder 16.

【００５７】ダイ２２の内部は、中空となっており、シ
リンダ１６より送り込まれるゴム生地の通路が形成され
ている。The inside of the die 22 is hollow, and a passage for the rubber material fed from the cylinder 16 is formed.

【００５８】ダイ２２の先端には、口金部２４が設けら
れている。A die 24 is provided at the tip of the die 22.

【００５９】図１に示すように、口金２４には、押出し
孔２６が形成されている。As shown in FIG. 1, an extrusion hole 26 is formed in the base 24.

【００６０】押出し孔２６は図３に示す帯状部材４０の
断面形状２つを薄肉部分同士が対向し、かつ直線の辺同
士が対向するよう連結した形状と相似形状である。The extrusion hole 26 has a shape similar to a shape in which two cross-sectional shapes of the belt-shaped member 40 shown in FIG. 3 are connected such that thin portions face each other and straight sides face each other.

【００６１】図１に示すように、口金２４には、押出し
孔２６の長手方向両側部分にピン４２が設けられてお
り、これら一対のピン４２にはワイヤー４４が直線状に
張られている。As shown in FIG. 1, the base 24 is provided with pins 42 on both sides in the longitudinal direction of the extrusion hole 26, and a wire 44 is stretched linearly between the pair of pins 42.

【００６２】このワイヤー４４は、押出し孔２６の中心
線（帯状部材４０の２つの断面形状の境界線（直線の
辺））に沿って配置されている。The wire 44 is arranged along the center line of the extrusion hole 26 (the boundary (the straight side) between the two cross-sectional shapes of the strip-shaped member 40).

【００６３】なお、ワイヤー４４の線径は、ゴム生地の
押出し時の抵抗により容易に切断しない範囲でできる限
り細い方が好ましい。なお、ワイヤー４４の材質は、ス
チールであっても良く、耐久性に問題がなければ合成繊
維等であっても良い。The wire diameter of the wire 44 is preferably as small as possible within a range in which the wire 44 is not easily cut due to resistance during extrusion of the rubber material. The material of the wire 44 may be steel, or synthetic fiber or the like if there is no problem in durability.

【００６４】次に本実施形態の作用を説明する。Next, the operation of the present embodiment will be described.

【００６５】タイヤ用のビードフィラーを形成するため
に精練工程にて配合練りされたゴム（練生地）は、練り
熱入及びストレーナによる異物の除去が行われ小片に切
られた後にベルトコンベア等によって搬送されてゴム生
地として押出機１０のシリンダ１６に供給される。The rubber (kneaded dough) compounded and kneaded in the scouring step to form a bead filler for tires is subjected to kneading and heat elimination and removal of foreign substances by a strainer, cut into small pieces, and then cut by a belt conveyor or the like. It is conveyed and supplied to the cylinder 16 of the extruder 10 as a rubber material.

【００６６】押出機１０では、シリンダ１６に供給され
たゴム生地をスクリュー１８の回転によって連続してダ
イヘッド部１４へ送出する。In the extruder 10, the rubber material supplied to the cylinder 16 is continuously sent to the die head 14 by the rotation of the screw 18.

【００６７】ダイヘッド部１４では、シリンダ１６から
スクリュー１８によって送出されたゴム生地が押出し孔
２６から、連続してゴム生地が押出される。In the die head section 14, the rubber material sent out from the cylinder 16 by the screw 18 is continuously extruded from the extrusion hole 26.

【００６８】押出し孔２６より排出されるゴム部材は、
薄肉部分同士が対向した断面形状（図４参照）を有する
が、押出し孔２６より排出された直後に、直線状に張ら
れたワイヤー４４により最終断面形状の直線部分を切断
面とするように切断され２つの帯状部材４０となる。The rubber member discharged from the extrusion hole 26 is
Although the thin portions have a cross-sectional shape facing each other (see FIG. 4), immediately after being discharged from the extrusion hole 26, the wire 44 stretched in a straight line is cut so that the linear portion of the final cross-sectional shape becomes a cut surface. Thus, two belt-shaped members 40 are formed.

【００６９】ワイヤー４４は、押出し孔２６の下流側の
近傍に張られており、押出し孔２６より排出直後のゴム
部材はスクリュー１８により排出移動力を有しているの
で、動力を必要とせずゴム部材を切断できる。The wire 44 is stretched in the vicinity of the downstream side of the extrusion hole 26, and the rubber member immediately after being discharged from the extrusion hole 26 has a discharge moving force by the screw 18. Members can be cut.

【００７０】押出し孔２６の形状を、最終断面形状の薄
肉部分同士を対向させた断面形状と相似形状とすること
により、最終断面形状を有するゴム部材を一つのみ押出
す押出し孔の形状と比較して、最も幅狭の部分の寸法が
大きくなり、ゴム部材をスムーズに排出し易くなる。By making the shape of the extrusion hole 26 similar to the cross-sectional shape in which the thin portions of the final cross-section shape are opposed to each other, the shape of the extrusion hole is compared with the shape of the extrusion hole for extruding only one rubber member having the final cross-section shape. As a result, the dimension of the narrowest portion is increased, and the rubber member is easily discharged smoothly.

【００７１】したがって、ゴム粘度を下げて流動性を上
げたり、ゴム温度を上げてゴム流動性を上げる、等の方
法を加える必要がなく、また、ゴムが押出機１０内でス
コーチしにくくゴムが口金２４の薄型部分に詰まる等の
不具合が生じ難くなり、さらに、薄型部分に異物が引っ
掛からないようにゴム中の異物を取り除く目の細かいス
トレーナーを設けたるためるに生じるスコーチの発生問
題を回避することができる。Accordingly, there is no need to add a method of lowering the viscosity of the rubber to increase the fluidity, or increasing the temperature of the rubber to increase the fluidity of the rubber. Problems such as clogging of the thin portion of the base 24 are less likely to occur, and furthermore, the problem of scorch occurring due to providing a fine strainer for removing foreign matter in rubber so that foreign matter is not caught in the thin portion is avoided. Can be.

【００７２】また、押出し孔２６の開口近傍でゴム部材
を細いワイヤー４４で切断分割するので、切断時に、薄
肉部分を大きく変形させることが無い。Further, since the rubber member is cut and divided by the thin wire 44 near the opening of the extrusion hole 26, the thin portion is not largely deformed at the time of cutting.

【００７３】なお、上記実施形態の帯状部材４０は、単
一の種類のゴム部材であったが、２層押出機を用い、図
５（Ａ）に示すように、加硫後の硬度が異なるゴム部材
４１Ａ及びゴム部材４１Ｂを押出し孔２６より同時に押
出してワイヤー４４で切断することにより、図５（Ｂ）
に示すようなゴム部材４１Ａ及びゴム部材４１Ｂからな
る帯状部材４０を２本同時に成型できる。Although the belt-like member 40 of the above embodiment is a single type of rubber member, a two-layer extruder is used, and the hardness after vulcanization is different as shown in FIG. By simultaneously extruding the rubber member 41A and the rubber member 41B from the extrusion holes 26 and cutting them with the wire 44, FIG.
The two belt-shaped members 40 composed of the rubber member 41A and the rubber member 41B shown in FIG.

【００７４】また、前記実施形態では、薄肉部分４０Ａ
同士を対向させた形状のゴム部材を押出して切断分割し
たが、本発明はこれに限らず、図６に示すように、薄肉
部分４０Ａと厚肉部分４０Ｂとを対向させた形状のゴム
部材を押出し、これをワイヤー４４で切断分割すること
により、２本の帯状部材４０を同時に形成できる。In the above embodiment, the thin portion 40A
The rubber members having the shapes facing each other are extruded and cut and divided. However, the present invention is not limited to this. As shown in FIG. 6, a rubber member having a shape in which a thin portion 40A and a thick portion 40B face each other is used. By extruding this and cutting and dividing it with a wire 44, two belt-shaped members 40 can be formed simultaneously.

【００７５】なお、図７（Ａ）に示すように、断面が台
形の帯状部材６０を形成する場合、図７（Ｂ）、（Ｃ）
に示すように複数の帯状部材６０を連結した形状のゴム
部材を押出して、ワイヤー４４で切断分割することもで
きる。As shown in FIG. 7 (A), when forming a band-shaped member 60 having a trapezoidal cross section, FIGS. 7 (B) and 7 (C).
As shown in FIG. 7, a rubber member having a shape in which a plurality of band-shaped members 60 are connected can be extruded and cut and divided by a wire 44.

【００７６】なお、本実施形態では、ゴムの荒生地を熱
入りロールで加工してから押出機１０に供給したが、熱
を加えない荒生地を直接押出機１０に供給してもよい。
この場合、押出機１０には、砂等を除去するストレーナ
ーが設けられる。 ［第２の実施形態］以下に図面を参照しながら本発明の
第２の実施形態を説明する。なお、第1の実施形態と同
一構成には同一符号を付し、その説明は省略する。In the present embodiment, the raw rubber material is processed by a hot roll and then supplied to the extruder 10, but the raw material to which no heat is applied may be supplied directly to the extruder 10.
In this case, the extruder 10 is provided with a strainer for removing sand and the like. Second Embodiment A second embodiment of the present invention will be described below with reference to the drawings. Note that the same components as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

【００７７】図８に示すように、本実施形態の口金２４
には、ワイヤー４４の代わりに薄肉の金属板で形成した
カッタ４６が設けられている。As shown in FIG. 8, the base 24 of this embodiment
Is provided with a cutter 46 formed of a thin metal plate in place of the wire 44.

【００７８】口金２４には、押出し孔２６の長手方向両
側部分にブロック４８が設けられており、このカッタ４
６は、端部がブロック４８と固定用ブロック５０との間
に挟まれボルト５２で固定されている。Blocks 48 are provided on the base 24 on both sides of the extrusion hole 26 in the longitudinal direction.
6 has an end portion sandwiched between the block 48 and the fixing block 50 and is fixed by bolts 52.

【００７９】なお、本実施形態の作用効果は第１の実施
形態と同様である。 ［第３の実施形態］以下に図面を参照しながら本発明の
第３の実施形態を説明する。The operation and effect of this embodiment are the same as those of the first embodiment. [Third Embodiment] A third embodiment of the present invention will be described below with reference to the drawings.

【００８０】図９（Ａ）〜（Ｃ）には、本発明が適用さ
れたプロファイルカレンダー７０の概略構成が示されて
いる。FIGS. 9A to 9C show a schematic configuration of a profile calendar 70 to which the present invention is applied.

【００８１】このプロファイルカレンダー７０は、略Ｖ
字形状の溝７２を形成した一対のロール７４を備えてお
り、これら一対のロール７４の間にゴム生地が供給され
ロール７４を回転（矢印Ｃ方向）させると、溝７２の間
から図４と同様の形状のゴム部材が排出されるので、図
９（Ｂ）に示すように、一対のロール７４のゴム部材排
出側にワイヤー４４を配置することで、第1の実施形態
と同様に複数本の帯状部材４０を同時に形成する事が出
来る。 ［第４の実施形態］以下に図面を参照しながら本発明の
第４の実施形態を説明する。The profile calendar 70 is substantially V
A pair of rolls 74 having a U-shaped groove 72 are provided, and when rubber material is supplied between the pair of rolls 74 and the roll 74 is rotated (in the direction of arrow C), the space between the groove 72 and FIG. Since the rubber member having the same shape is discharged, as shown in FIG. 9B, by arranging the wires 44 on the rubber member discharge side of the pair of rolls 74, a plurality of rolls are formed in the same manner as in the first embodiment. Can be formed at the same time. [Fourth Embodiment] Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings.

【００８２】図１０（Ａ）、（Ｂ）には、本発明が適用
された回転ロール式押出機（Ｒｏｌｌｉｎｇ Ｅｘｔｒ
ｕｄｅｒ）８０の概略構成が示されている。FIGS. 10A and 10B show a rotating roll extruder (Rolling Extr) to which the present invention is applied.
udder) 80 is shown.

【００８３】この回転ロール式押出機８０は、略Ｖ字形
状の溝８２を形成したロール８４と、略Ｖ字形状の溝８
６が形成されロール８４の外周面に接する口金８８を備
えており、これらロール８４と口金８６の間にゴム生地
が供給されロール８４を回転（矢印Ｃ方向）させると、
溝７２、８６の間から図４と同様の形状のゴム部材が排
出されるので、図１０（Ｂ）に示すように、ロール８４
と口金８６のゴム部材排出側にワイヤー４４を配置する
ことで、第1の実施形態と同様に複数本の帯状部材４０
を同時に形成する事が出来る。The rotary roll type extruder 80 includes a roll 84 having a substantially V-shaped groove 82 and a substantially V-shaped groove 8.
6 is provided with a base 88 which is in contact with the outer peripheral surface of the roll 84. When a rubber material is supplied between the roll 84 and the base 86 and the roll 84 is rotated (in the direction of arrow C),
Since the rubber member having the same shape as that of FIG. 4 is discharged from between the grooves 72 and 86, as shown in FIG.
By arranging the wire 44 on the rubber member discharge side of the base 86 and the plurality of band-shaped members 40 as in the first embodiment.
Can be formed at the same time.

【００８４】なお、上記実施形態では、ゴム部材を押出
機、プロファイルカレンダー及び回転式押出機を用いて
押出し形成した例を示したが、これに限らず、他の種類
の形成機を用いた場合でも本発明を適用することができ
る。In the above embodiment, the rubber member is extruded using an extruder, a profile calender and a rotary extruder. However, the present invention is not limited to this. However, the present invention can be applied.

【００８５】また、上記実施形態では、帯状部材がゴム
部材であったが、本発明はこれに限らず、プラスチッ
ク、ビニール等の可塑性を有する高分子材料であっても
良い。 ［試験例１］図１１（Ｄ）には、帯状ゴム部材を所定の
断面形状で押出す際の、口金の押出し孔の薄肉部分のゲ
ージとゴム粘度との関係を示したグラフが示されてい
る。In the above embodiment, the belt-shaped member is a rubber member. However, the present invention is not limited to this, and a plastic polymer material such as plastic or vinyl may be used. [Test Example 1] FIG. 11 (D) is a graph showing the relationship between the rubber viscosity and the gauge of the thin portion of the extrusion hole of the die when extruding the belt-shaped rubber member with a predetermined sectional shape. I have.

【００８６】図１１（Ｄ）に示すグラフから、（Ａ），
（Ｂ），（Ｃ）の３種類の押出し孔を比較すると、従来
形状の（Ａ）の押出し孔を用いる場合には、本発明の適
用された（Ｂ），（Ｃ）の押出し孔を用いる場合よりも
ゴム粘度を相対的に低くしなければならないことが分か
る。From the graph shown in FIG.
Comparing the three types of extrusion holes (B) and (C), when the extrusion hole of the conventional shape (A) is used, the extrusion holes of (B) and (C) to which the present invention is applied are used. It can be seen that the rubber viscosity must be relatively lower than in the case.

【００８７】したがって、本発明によれば、従来方法よ
り、ゴム粘度を下げるための余分なエネルギー等を必要
としないことは明らかである。 ［試験例２］比較例１の押出し孔、実施例１の押出し
孔、実施例２の押出し孔を用いた場合のゴム部材押出し
能力の比較を行った。Therefore, according to the present invention, it is apparent that no extra energy or the like for lowering the rubber viscosity is required as compared with the conventional method. Test Example 2 A comparison was made of the rubber member extruding ability when the extrusion hole of Comparative Example 1, the extrusion hole of Example 1, and the extrusion hole of Example 2 were used.

【００８８】試験は、試験用の押出し孔の形成された口
金を取り付け、一定の基準（外形寸法、寸法ムラ等）を
満たした帯状部材が押出されるように押出し条件を調節
した。In the test, a die having a test extrusion hole was attached, and the extrusion conditions were adjusted so that a band-shaped member satisfying a predetermined standard (external dimensions, dimensional unevenness, etc.) was extruded.

【００８９】結果は、比較例１の押出し孔を用いた場合
の押出し量を１００とする指数で表しており、数値が大
きいほど押出し能力に優れていることを表している。The results are expressed as an index with the amount of extrusion when the extrusion hole of Comparative Example 1 is used as 100, and the larger the numerical value, the better the extrusion ability.

【００９０】[0090]

【表１】 [Table 1]

【００９１】試験の結果、実施例は比較例よりも優れた
押出し能力を有していることが分かった。 ［試験例３］比較例２の押出し孔、実施例３の押出し孔
を用いた場合のゴム部材押出し能力の比較を行った。As a result of the test, it was found that the examples had better extrusion ability than the comparative examples. [Test Example 3] A comparison was made between the extrusion ability of the rubber member when the extrusion hole of Comparative Example 2 and the extrusion hole of Example 3 were used.

【００９２】試験方法は試験例２と同じである。The test method is the same as in Test Example 2.

【００９３】[0093]

【表２】 [Table 2]

【００９４】試験の結果、実施例は比較例よりも優れた
押出し能力を有していることが分かった。 ［試験例４］比較例３の押出し孔、実施例４の押出し孔
を用いた場合のゴム部材押出し能力の比較を行った。As a result of the test, it was found that the examples had better extrusion ability than the comparative examples. [Test Example 4] A comparison was made between the extrusion ability of the rubber member when the extrusion hole of Comparative Example 3 and the extrusion hole of Example 4 were used.

【００９５】試験方法は試験例１と同じである。The test method is the same as in Test Example 1.

【００９６】[0096]

【表３】 [Table 3]

【００９７】試験の結果、実施例は比較例よりも優れた
押出し能力を有していることが分かった。 ［試験例５］比較例４の押出し孔、実施例５及び実施例
６の押出し孔を用いた場合のゴム部材押出し能力の比較
を行った。As a result of the test, it was found that the examples had better extrusion ability than the comparative examples. [Test Example 5] A comparison was made between the extrusion ability of the rubber member when the extrusion holes of Comparative Example 4 and the extrusion holes of Examples 5 and 6 were used.

【００９８】試験方法は試験例１と同じである。The test method is the same as in Test Example 1.

【００９９】[0099]

【表４】 [Table 4]

【０１００】試験の結果、実施例は比較例よりも優れた
押出し能力を有していることが分かった。As a result of the test, it was found that the examples had better extrusion ability than the comparative examples.

【０１０１】[0101]

【発明の効果】以上説明した如く、本発明によれば、高
品質のゴム部材を加工コストを上げず、また生産性を下
げずに製造することができる、という優れた効果を有す
る。As described above, according to the present invention, there is an excellent effect that a high-quality rubber member can be manufactured without increasing the processing cost and without lowering the productivity.

【図面の簡単な説明】[Brief description of the drawings]

【図１】第１の実施形態に係る押出機の口金の斜視図で
ある。FIG. 1 is a perspective view of a die of an extruder according to a first embodiment.

【図２】第１の実施形態に係る押出機の要部を示す断面
図である。FIG. 2 is a sectional view showing a main part of the extruder according to the first embodiment.

【図３】帯状部材の斜視図である。FIG. 3 is a perspective view of a belt-shaped member.

【図４】押出孔より押出されるゴム部材の切断前の斜視
図である。FIG. 4 is a perspective view of a rubber member extruded from an extrusion hole before cutting.

【図５】（Ａ）は２層押出機により押出されたゴム部材
の斜視図であり、（Ｂ）は図５（Ａ）に示すゴム部材を
切断分割して得られた帯上部材の斜視図である。5 (A) is a perspective view of a rubber member extruded by a two-layer extruder, and FIG. 5 (B) is a perspective view of an upper band member obtained by cutting and dividing the rubber member shown in FIG. 5 (A). FIG.

【図６】他の実施形態に係るゴム部材の切断分割前の斜
視図である。FIG. 6 is a perspective view of a rubber member according to another embodiment before being cut and divided.

【図７】（Ａ）は他の実施形態に係る帯状部材の斜視図
であり、（Ｂ）及び（Ｃ）は切断分割前のゴム部材の斜
視図である。FIG. 7A is a perspective view of a belt-shaped member according to another embodiment, and FIGS. 7B and 7C are perspective views of a rubber member before cutting and splitting.

【図８】第２の実施形態に係る押出機の口金の斜視図で
ある。FIG. 8 is a perspective view of a die of an extruder according to a second embodiment.

【図９】（Ａ）は第３の実施形態に係るプロファイルカ
レンダーの概略構成図であり、（Ｂ）は、ローラの拡大
図であり、（Ｃ）はローラの正面図である。9A is a schematic configuration diagram of a profile calendar according to a third embodiment, FIG. 9B is an enlarged view of a roller, and FIG. 9C is a front view of the roller.

【図１０】（Ａ）は第４の実施形態に係る回転式押出機
の概略構成図であり、（Ｂ）は、ローラ及び口金の正面
図である。FIG. 10A is a schematic configuration diagram of a rotary extruder according to a fourth embodiment, and FIG. 10B is a front view of a roller and a die.

【図１１】（Ａ）は従来の押出し孔の正面図であり、
（Ｂ）は本発明の適用された口金の正面図であり、
（Ｃ）は本発明の適用された他の口金の正面図であり、
（Ｄ）は口金ゲージとゴム粘度との関係を示すグラフで
ある。FIG. 11A is a front view of a conventional extrusion hole,
(B) is a front view of the base to which the present invention is applied,
(C) is a front view of another base to which the present invention is applied,
(D) is a graph showing the relationship between the die gauge and the rubber viscosity.

【図１２】（Ａ）は従来例に係る押出し孔及びその押出
し孔から押出された帯状部材の斜視図であり、（Ｂ）は
他の従来例に係る押出し孔及びその押出し孔から押出さ
れた帯状部材の斜視図である。FIG. 12 (A) is a perspective view of an extrusion hole according to a conventional example and a strip-shaped member extruded from the extrusion hole, and FIG. 12 (B) is an extrusion hole according to another conventional example and extruded from the extrusion hole. It is a perspective view of a belt-shaped member.

【符号の説明】[Explanation of symbols]

１０ 押出機（可塑性高分子材料の形成装置） １８ スクリュー（搬送手段） ２４ 口金 ２６ 押出し孔（開口部） ４０ 帯状部材（可塑性高分子材料） ４４ ワイヤー（分割手段） ４６ カッタ（分割手段） ７０ プロファイルカレンダー（可塑性高分子材料の
形成装置） ７２ 溝（開口部） ７４ ローラ（搬送手段） ８０ 回転ロール式押出機（可塑性高分子材料の形成
装置） ８４ ローラ（搬送手段） ８２ 溝（開口部） ８６ 溝（開口部）REFERENCE SIGNS LIST 10 extruder (plastic polymer material forming device) 18 screw (conveying means) 24 base 26 extrusion hole (opening) 40 belt-shaped member (plastic polymer material) 44 wire (dividing means) 46 cutter (dividing means) 70 profile Calender (plastic polymer material forming device) 72 Groove (opening) 74 Roller (transporting means) 80 Rotary roll type extruder (plastic polymer material forming device) 84 Roller (transporting means) 82 Groove (opening) 86 Groove (opening)

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 可塑性高分子材料を開口部より連続的
に押出し製造する可塑性高分子材料の形成方法であっ
て、 最終断面形状を厚さ方向に少なくとも２つ以上連結した
形状と相似の形状を有する開口部より可塑性高分子材料
を押出し、前記開口部より押出された可塑性高分子材料
を開口部の下流側に設けた分割手段で最終断面形状を有
する複数の可塑性高分子材料に分割することを特徴とす
る可塑性高分子材料の形成方法。1. A method for forming a plastic polymer material by continuously extruding and manufacturing a plastic polymer material from an opening, wherein a shape similar to a shape in which at least two or more final cross-sectional shapes are connected in a thickness direction is formed. Extruding the plastic polymer material from the opening having, and dividing the plastic polymer material extruded from the opening into a plurality of plastic polymer materials having a final cross-sectional shape by dividing means provided on the downstream side of the opening. A method of forming a characteristic plastic polymer material. 【請求項２】 薄肉部分と厚肉部分とが混在した断面
形状を備える可塑性高分子材料を開口部より連続的に押
出し製造する可塑性高分子材料の形成方法であって、 前記可塑性高分子材料の最終断面形状における最薄肉部
分同士または最薄肉部分と最薄肉部分以外の部分とが対
向するように、少なくとも前記最終断面形状を２つ以上
連結した形状と相似の形状を有する開口部より可塑性高
分子材料を押出し、前記開口部より押出された可塑性高
分子材料を開口部の下流側に設けた分割手段で最終断面
形状を有する複数の可塑性高分子材料に分割することを
特徴とする可塑性高分子材料の形成方法。2. A method of forming a plastic polymer material by continuously extruding and manufacturing a plastic polymer material having a cross-sectional shape in which a thin portion and a thick portion are mixed, comprising: A plastic polymer is formed from an opening having a shape similar to at least the shape obtained by connecting two or more of the final cross-sectional shapes so that the thinnest portions in the final cross-sectional shape or portions other than the thinnest portion and the thinnest portion are opposed to each other. Extruding a material, and dividing the plastic polymer material extruded from the opening into a plurality of plastic polymer materials having a final cross-sectional shape by dividing means provided on the downstream side of the opening. Formation method. 【請求項３】 前記開口部は、前記最終断面形状の直
線部分同士が対向した形状と相似の形状を有することを
特徴とする請求項１または請求項２に記載の可塑性高分
子材料の形成方法。3. The method according to claim 1, wherein the opening has a shape similar to a shape in which straight portions of the final cross-sectional shape face each other. . 【請求項４】 可塑性高分子材料を開口部より連続的
に押出し製造する可塑性高分子材料の形成装置であっ
て、 前記可塑性高分子材料の最終断面形状における最薄肉部
分同士または最薄肉部分と最薄肉部分以外の部分とが対
向するように、少なくとも前記最終断面形状を２つ以上
連結した形状と相似の形状を有する開口部と、 供給された可塑性高分子材料を前記開口部へ向けて搬送
する搬送手段と、 前記開口部の下流側に設けられ前記開口部より押出され
た可塑性高分子材料を最終断面形状を有する複数の可塑
性高分子材料に分割する分割手段と、 を有することを特徴とする可塑性高分子材料の形成装
置。4. A plastic polymer material forming device for continuously extruding and producing a plastic polymer material from an opening, wherein the thinnest portions or the thinnest portions in the final cross-sectional shape of the plastic polymer material are the same. An opening having a shape similar to at least two of the final cross-sectional shapes connected so that portions other than the thin portion are opposed to each other; and transporting the supplied plastic polymer material toward the opening. Conveying means, and a dividing means provided on the downstream side of the opening and dividing the plastic polymer material extruded from the opening into a plurality of plastic polymer materials having a final cross-sectional shape. An apparatus for forming a plastic polymer material. 【請求項５】 前記開口部は、前記最終断面形状の直
線部分同士が対向した形状と相似の形状を有し、 前記分割手段は、前記直線部分を切断面とする直線状に
張ったワイヤーであることを特徴とする請求項４に記載
の可塑性高分子材料の形成装置。5. The opening has a shape similar to a shape in which straight portions of the final cross section are opposed to each other, and the dividing means is a wire stretched in a straight line with the straight portion as a cut surface. The apparatus for forming a plastic polymer material according to claim 4, wherein: 【請求項６】 前記開口部は、前記最終断面形状の直
線部分同士が対向した形状と相似の形状を有し、 前記分割手段は、前記直線部分を切断面とする直線状に
延びる薄肉の刃であることを特徴とする請求項４に記載
の可塑性高分子材料の形成装置。6. The opening has a shape similar to a shape in which straight portions of the final cross section are opposed to each other, and the dividing means is a thin blade extending linearly with the straight portion as a cut surface. The apparatus for forming a plastic polymer material according to claim 4, wherein:
JP2000139070A 2000-05-11 2000-05-11 Method and apparatus for forming plastic polymeric material Pending JP2001315187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000139070A JP2001315187A (en) 2000-05-11 2000-05-11 Method and apparatus for forming plastic polymeric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000139070A JP2001315187A (en) 2000-05-11 2000-05-11 Method and apparatus for forming plastic polymeric material

Publications (1)

Publication Number Publication Date
JP2001315187A true JP2001315187A (en) 2001-11-13

Family

ID=18646583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000139070A Pending JP2001315187A (en) 2000-05-11 2000-05-11 Method and apparatus for forming plastic polymeric material

Country Status (1)

Country Link
JP (1) JP2001315187A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011194854A (en) * 2010-03-24 2011-10-06 Toyo Tire & Rubber Co Ltd Method of manufacturing belt-like rubber
JP2015071276A (en) * 2013-10-04 2015-04-16 横浜ゴム株式会社 Method of measuring temperature of rubber extrusion and temperature measurement unit
WO2019041064A1 (en) * 2017-09-04 2019-03-07 李军 Extrusion line downstream component water removal apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011194854A (en) * 2010-03-24 2011-10-06 Toyo Tire & Rubber Co Ltd Method of manufacturing belt-like rubber
JP2015071276A (en) * 2013-10-04 2015-04-16 横浜ゴム株式会社 Method of measuring temperature of rubber extrusion and temperature measurement unit
WO2019041064A1 (en) * 2017-09-04 2019-03-07 李军 Extrusion line downstream component water removal apparatus

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