JP4367604B2 - Laminating method for strip members - Google Patents
Laminating method for strip members Download PDFInfo
- Publication number
- JP4367604B2 JP4367604B2 JP2002171187A JP2002171187A JP4367604B2 JP 4367604 B2 JP4367604 B2 JP 4367604B2 JP 2002171187 A JP2002171187 A JP 2002171187A JP 2002171187 A JP2002171187 A JP 2002171187A JP 4367604 B2 JP4367604 B2 JP 4367604B2
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- JP
- Japan
- Prior art keywords
- sheet material
- belt
- laminating
- concavo
- extruder
- 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 - Fee Related
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【０００１】
【発明の属する技術分野】
この発明は、押出機から押出しされた未加硫ゴムの帯状シート材料を貼合わせる帯状部材の貼合わせ方法に係わり、更に詳しくは貼合わせ面の長手方向に形成した凹凸部を介して貼合わせる帯状部材の貼合わせ方法に関するものである。
【０００２】
【従来の技術】
従来、タイヤやゴム製品の構成材料等として使用される未加硫ゴムの帯状シート材料同士を貼合わせる方法では、押出機から押出しされた未加硫ゴムの帯状シート材料を長手方向から順次貼合わせる方法が行われている。
【０００３】
このような未加硫ゴムの帯状シート材料を貼合わせる場合には、ほとんどの場合帯状シート材料間にエアーが巻き込み、この残留エアーが、ゴム製品の成形後に製品不良を起こす問題があった。
【０００４】
そこで、未加硫ゴムの帯状シート材料の貼合わせ時に材料間へのエアーの混入を避けるための手段として、帯状シート材料の貼合わせ面の少なくとも一方の面に帯状シート材料の長手方向と直交する向き多数の凹溝付け、貼合わせ時に多数の凹溝からエアーを逃がしたり、また貼合わせ部分にエアーの混入を避けるような圧着するためのガイドロールを設置する手段が取られていた。
【０００５】
【発明が解決しようとする課題】
然しながら、貼合わせ部材が所定形状のプロファイルを持っているような場合には、上記のような均一な溝付けが困難であったり、またガイドロールを設置する場合においても、部材のテンション（張力）の状況によっては、部材同士が袋状になりエアーの逃げ場が無くなると言う問題が発生する。
【０００６】
従って、従来のような方法では、部材間に混入するエアーを効率良く、しかも確実に逃がすことが出来ないと言う問題があった。
【０００７】
そこで、本願発明者等は、実験を繰返し行った結果、貼合わせ部材の貼合わせ面の少なくとも一方に長手方向に沿って多数の突起状の凹凸部を設けることで、貼合わせ時に巻き込んだエアーが凹凸部の側面に沿って長手方向に逃げることが判った。
【０００８】
この発明はかかる従来の問題点に着目し、未加硫ゴムの帯状シート材料を貼合わせる際にエアーの混入が無くなり、またエアーが混入しても貼合わせ効率良く排出させることが出来、ゴム製品の品質の向上を図ることが出来ると共に、装置が簡素化して設備費用等を削減することが出来る帯状部材の貼合わせ方法を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
この発明は上記目的を達成するため、押出機により押出しされた未加硫ゴムの帯状シート材料の貼合わせ面の少なくとも一方の面に、前記押出機の押出しヘッドのダイスの凹凸形成部により長手方向に沿って高さを０．１ｍｍ〜０．３ｍｍのエアー抜きのための凹凸部を形成すると共に、凹凸形成部の本数は、帯状シート材料Ｗの幅が４５〜５０ｍｍ幅の未加硫ゴムの帯状シート材料Ｗである場合、５〜６本／ｃｍに形成し、前記帯状シート材料の貼合わせ面を貼合わせる際、前記帯状シート材料の貼合わせ面の長手方向に形成した凹凸部を介して貼合わせることを要旨とするものである。
【００１０】
ここで、帯状シート材料の貼合わせ面に形成する凹凸部は、帯状シート材料の押出し成形時に押出機の押出しヘッドのダイスの凹凸形成部により、同時に成形するものである。
【００１１】
このように、帯状シート材料の貼合わせ面の長手方向に形成したエアー抜きのための凹凸部を介して貼合わせることにより、未加硫ゴムの帯状シート材料を貼合わせる際にエアーの混入が無くなり、またエアーが混入しても貼合わせ効率良く排出させることが出来、この結果、ゴム製品の品質の向上を図ることが出来るものである。
【００１２】
【発明の実施の形態】
以下、添付図面に基づき、この発明の実施形態を説明する。
【００１３】
図１は、この発明にかかる帯状部材の貼合わせ方法を実施するための押出機の押出しヘッドの断面図、図２は図１のＡ−Ａ矢視断面図を示し、１は押出機の押出しヘッド、２はバレル、３はスクリュー、４は吐出口、５は出口、６はダイス（口金）を示している。
【００１４】
この発明では、このような押出機の押出しヘッド１のダイス６により、後述するような未加硫ゴムの帯状シート材料Ｗを押出す際、帯状シート材料Ｗの貼合わせ面Ｓの長手方向にエアー抜きのための凹凸部７を形成するために、ダイス６の幅方向には、所定の高さの突起状の凹凸形成部８が形成してある。
【００１５】
この突起状の凹凸形成部８の形態は、未加硫ゴムの帯状シート材料Ｗを押出した際に、その貼合わせ面Ｓに形成される凹凸部７の高さが、０．１ｍｍ〜０．３ｍｍの範囲で設定するのが好ましい。
【００１６】
この凹凸部７の高さは、０．１ｍｍ以下では、エアーの逃がし効果が薄く、また０．３ｍｍを超えると、貼合わせ部にエアーが残ることになり、上記の範囲に設定することで、形状は圧着効果により均一に潰れて厚さが均一となり、貼合わせ効果も良好となる。
【００１７】
また凹凸形成部８の本数は、帯状シート材料Ｗの幅にもよるが、４５〜５０ｍｍ幅の未加硫ゴムの帯状シート材料Ｗである場合、５〜６本／ｃｍが好ましい。
【００１８】
なお、上記のような凹凸形成部８を備えたダイスにより帯状シート材料Ｗを押出し成形した場合に、凹凸部７の間隔が広い場合には、その間隔の影響で逆にエアーを巻き込んで逆効果となり、また凹凸部７の間隔が狭く、本数が多い場合には、帯状シート材料Ｗの形状が厚くなると言う問題がある。従って、上記のような範囲に設定するのが好ましい。
【００１９】
なお、上記の実施形態では、貼合わせる帯状シート材料Ｗの貼合わせ面の一方に凹凸部７を形成して貼合わせる場合について説明したが、貼合わせ面の両方に凹凸部７を形成することも可能である。
【００２０】
このように、押出機から押出しされた未加硫ゴムの帯状シート材料Ｗを少なくとも二枚以上貼合わせる場合に、押出し成形時に、帯状シート材料Ｗの貼合わせ面Ｓの少なくとも一方に、長手方向に沿ってエアー抜きのための所定の高さの凹凸部７を形成しておき、この帯状シート材料Ｗの貼合わせ面Ｓ同士を貼合わせることで、未加硫ゴムの帯状シート材料Ｗを貼合わせる際にエアーの混入が無くなり、またエアーが混入しても貼合わせ効率良く排出させることが出来、この結果、ゴム製品の品質の向上を図ることが出来るものである。
【００２１】
【発明の効果】
この発明は、上記のように押出機により押出しされた未加硫ゴムの帯状シート材料の貼合わせ面の少なくとも一方の面に、前記押出機の押出しヘッドのダイスの凹凸形成部により長手方向に沿って高さを０．１ｍｍ〜０．３ｍｍのエアー抜きのための凹凸部を形成すると共に、凹凸形成部の本数は、帯状シート材料Ｗの幅が４５〜５０ｍｍ幅の未加硫ゴムの帯状シート材料Ｗである場合、５〜６本／ｃｍに形成し、前記帯状シート材料の貼合わせ面を貼合わせる際、前記帯状シート材料の貼合わせ面の長手方向に形成した凹凸部を介して貼合わせるので、以下のような優れた効果を奏するものである。
(a).未加硫ゴムの帯状シート材料Ｗを貼合わせる際に、エアーの混入が無くなり、またエアーが混入しても貼合わせ効率良く排出させることが出来、この結果、ゴム製品の品質の向上を図ることが出来る。
(b).エアー防止対策としての装置の簡素化につながり、設備コストを低減させることが出来る。
(c).薄い帯状シート材料を貼合わせる場合に使用するローラを配置したり、導入角度規制等を排斥することが出来る。
(d).帯状シート材料相互の圧着効果を高めることが出来る。
【図面の簡単な説明】
【図１】この発明にかかる帯状部材の貼合わせ方法を実施するための押出機の押出しヘッドの断面図である。
【図２】図１のＡ−Ａ矢視断面図である。
【図３】帯状シート材料の貼合わせる状態の斜視図である。
【図４】帯状シート材料の貼合わせ工程の斜視図である。
【符号の説明】
１ 押出機の押出しヘッド ２ バレル
３ スクリュー ４ 吐出口
５ 出口 ６ ダイス（口金）
７ 凹凸部 ８ 凹凸形成部
Ｗ 帯状シート材料 Ｓ 貼合わせ面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for laminating a band-shaped member for laminating a belt-shaped sheet material of an unvulcanized rubber extruded from an extruder, and more specifically, a band shape for laminating via an uneven portion formed in the longitudinal direction of a laminating surface. The present invention relates to a method for pasting members.
[0002]
[Prior art]
Conventionally, in the method of laminating unvulcanized rubber belt-like sheet materials used as constituent materials of tires and rubber products, the unvulcanized rubber belt-like sheet material extruded from the extruder is laminated in order from the longitudinal direction. The way is done.
[0003]
When such unvulcanized rubber belt-like sheet material is bonded, in most cases, air is involved between the belt-like sheet materials, and this residual air has a problem of causing product defects after molding of the rubber product.
[0004]
Therefore, as a means for avoiding air mixing between the materials when laminating the unvulcanized rubber belt-like sheet material, at least one of the laminating surfaces of the belt-like sheet material is orthogonal to the longitudinal direction of the belt-like sheet material. There have been taken means for installing guide rolls for crimping so as to escape air from a large number of concave grooves at the time of laminating and laminating in the direction, and to avoid mixing air into the laminating portion.
[0005]
[Problems to be solved by the invention]
However, when the laminated member has a profile of a predetermined shape, it is difficult to form a uniform groove as described above, and even when a guide roll is installed, the tension of the member Depending on the situation, the problem arises that the members become bag-like and there is no air escape.
[0006]
Therefore, the conventional method has a problem that the air mixed between the members cannot be efficiently and reliably released.
[0007]
Therefore, the inventors of the present application, as a result of repeated experiments, provided a large number of protrusions and depressions along the longitudinal direction on at least one of the bonding surfaces of the bonding member, so that the air caught during bonding was It turned out that it escaped in a longitudinal direction along the side surface of an uneven part.
[0008]
This invention pays attention to such a conventional problem, and when the unvulcanized rubber belt-like sheet material is bonded, air is not mixed, and even if air is mixed, the bonding can be efficiently discharged, and the rubber product. It is an object of the present invention to provide a method for laminating a belt-shaped member that can improve the quality of the belt and can simplify equipment and reduce equipment costs.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention achieves at least one side of the laminating surface of the unvulcanized rubber strip-like sheet material extruded by the extruder, and the longitudinal direction of the extrusion head of the extrusion head of the extruder by the concave / convex forming portion. The height of the concavo-convex portion for removing air having a height of 0.1 mm to 0.3 mm is formed along the width of the unvulcanized rubber whose width of the belt-shaped sheet material W is 45 to 50 mm. When it is the belt-like sheet material W, it is formed at 5 to 6 pieces / cm, and when pasting the laminating surface of the belt-like sheet material, through the uneven portion formed in the longitudinal direction of the laminating surface of the belt-like sheet material. The gist is to paste them together.
[0010]
Here, the concavo-convex portion formed on the bonding surface of the strip-shaped sheet material is formed simultaneously by the concavo-convex formation portion of the die of the extrusion head of the extruder at the time of extrusion molding of the strip-shaped sheet material.
[0011]
Thus, by laminating through the concavo-convex part for air venting formed in the longitudinal direction of the laminating surface of the band-shaped sheet material, no air is mixed when laminating the unvulcanized rubber band-shaped sheet material. Moreover, even if air is mixed, it can be discharged efficiently, and as a result, the quality of the rubber product can be improved.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0013]
FIG. 1 is a cross-sectional view of an extrusion head of an extruder for carrying out the method for laminating strip members according to the present invention, FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, and 1 is an extrusion of the extruder The head, 2 is a barrel, 3 is a screw, 4 is a discharge port, 5 is an outlet, and 6 is a die.
[0014]
In this invention, when extruding the unvulcanized rubber belt-like sheet material W as will be described later by the
[0015]
In the form of the protrusion-shaped
[0016]
When the height of the concavo-
[0017]
Moreover, although the number of the uneven |
[0018]
In addition, when the strip-shaped sheet material W is extruded and formed by a die having the
[0019]
In addition, although said embodiment demonstrated the case where the uneven | corrugated |
[0020]
Thus, in the case where at least two sheets of unvulcanized rubber strip sheet material W extruded from the extruder are bonded together, at the time of extrusion molding, at least one of the bonding surfaces S of the strip sheet material W in the longitudinal direction. The uneven | corrugated | grooved
[0021]
【The invention's effect】
According to the present invention, at least one of the bonding surfaces of the unvulcanized rubber strip-like sheet material extruded by the extruder as described above is formed along the longitudinal direction by the unevenness forming portion of the die of the extrusion head of the extruder. In addition, the height of the concavo-convex portions for removing air having a height of 0.1 mm to 0.3 mm is formed, and the number of the concavo-convex portions is a strip-shaped sheet of unvulcanized rubber having a width of the strip-shaped sheet material W of 45 to 50 mm. In the case of the material W, it is formed at 5 to 6 pieces / cm, and when the bonding surface of the band-shaped sheet material is bonded, it is bonded via an uneven portion formed in the longitudinal direction of the bonding surface of the band-shaped sheet material. Therefore, the following excellent effects are achieved.
(a). When is laminated a sheet strip material W of the unvulcanized rubber, there is no contamination of the air, also air is also cemented efficiently can be discharged by mixing, as a result, the rubber product quality Improvements can be made.
(b). It leads to simplification of the device as an air prevention measure, and the equipment cost can be reduced.
(c). It is possible to dispose the roller used when laminating a thin belt-like sheet material or to eliminate the restriction of the introduction angle.
(d) The pressure-bonding effect between the strip sheet materials can be enhanced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an extrusion head of an extruder for carrying out a method for laminating strip members according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA in FIG.
FIG. 3 is a perspective view of a state in which a belt-shaped sheet material is bonded.
FIG. 4 is a perspective view of a step of laminating a belt-shaped sheet material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1
7 Concavity and
Claims (2)
前記押出機により押出しされた未加硫ゴムの帯状シート材料の貼合わせ面の少なくとも一方の面に、前記押出機の押出しヘッドのダイスの凹凸形成部により長手方向に沿って高さを０．１ｍｍ〜０．３ｍｍのエアー抜きのための凹凸部を形成すると共に、凹凸形成部の本数は、帯状シート材料Ｗの幅が４５〜５０ｍｍ幅の未加硫ゴムの帯状シート材料Ｗである場合、５〜６本／ｃｍに形成し、前記帯状シート材料の貼合わせ面を貼合わせる際、前記帯状シート材料の貼合わせ面の長手方向に形成した凹凸部を介して貼合わせる帯状部材の貼合わせ方法。 In the laminating method of the band-shaped member that bonds at least two sheets of unvulcanized rubber band-shaped sheet material extruded by an extruder,
A height of 0.1 mm along the longitudinal direction is formed on at least one surface of the laminating surface of the unvulcanized rubber belt-like sheet material extruded by the extruder by the concavo-convex forming portion of the die of the extrusion head of the extruder. When the concavo-convex portions for air bleeding of ~ 0.3 mm are formed, the number of the concavo-convex portions is 5 to 50 mm when the width of the band-shaped sheet material W is 45 to 50 mm width of unvulcanized rubber. A method for laminating a belt-shaped member to be bonded through an uneven portion formed in the longitudinal direction of the laminating surface of the belt-like sheet material when the laminating surface of the belt-like sheet material is pasted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002171187A JP4367604B2 (en) | 2002-06-12 | 2002-06-12 | Laminating method for strip members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002171187A JP4367604B2 (en) | 2002-06-12 | 2002-06-12 | Laminating method for strip members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004017293A JP2004017293A (en) | 2004-01-22 |
| JP4367604B2 true JP4367604B2 (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002171187A Expired - Fee Related JP4367604B2 (en) | 2002-06-12 | 2002-06-12 | Laminating method for strip members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4367604B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102112083B1 (en) * | 2018-11-14 | 2020-05-20 | 박진호 | Extruder t-dies for forming a foam board |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8162644B2 (en) | 2006-01-17 | 2012-04-24 | Toyo Tire & Rubber Co., Ltd. | Die for extrusion forming head |
-
2002
- 2002-06-12 JP JP2002171187A patent/JP4367604B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102112083B1 (en) * | 2018-11-14 | 2020-05-20 | 박진호 | Extruder t-dies for forming a foam board |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004017293A (en) | 2004-01-22 |
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