JP2002372106A - Conveyor belt with aramid core body and joining method for conveyor belt with aramid core body - Google Patents
Conveyor belt with aramid core body and joining method for conveyor belt with aramid core bodyInfo
- Publication number
- JP2002372106A JP2002372106A JP2001177987A JP2001177987A JP2002372106A JP 2002372106 A JP2002372106 A JP 2002372106A JP 2001177987 A JP2001177987 A JP 2001177987A JP 2001177987 A JP2001177987 A JP 2001177987A JP 2002372106 A JP2002372106 A JP 2002372106A
- Authority
- JP
- Japan
- Prior art keywords
- aramid core
- aramid
- conveyor belt
- belt
- joining
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アラミド芯体入り
コンベヤベルト及びそのアラミド芯体入りコンベヤベル
トの接合方法に関する。The present invention relates to a conveyor belt containing an aramid core and a method for joining the conveyor belt containing the aramid core.
【０００２】[0002]
【従来の技術】ベルトコンベヤは、大きな輸送力を持ち
動力消費が少なく、構造が簡単なことから運転信頼度が
高く保守も容易である。そのため、用途も多岐にわた
り、応用製品の種類も多く、その構造から、地上に設け
たコンクリート基礎に基礎ボルトによって取り付けた定
置形ベルトコンベヤ、主として土砂採掘工事等に使用さ
れ、コンベヤ全体が横方向に移動可能な構造となってい
る移動形コンベヤ、パイプ形ベルトコンベヤに代表され
る特殊ベルトコンベヤなど、種々のものが使用されてい
る。2. Description of the Related Art A belt conveyor has a large transporting power, consumes little power, and has a simple structure, so that it has high operational reliability and is easy to maintain. For this reason, it is used in a wide variety of applications, and there are many types of applied products.Because of its structure, it is used for stationary belt conveyors attached to foundation concrete foundations with foundation bolts, mainly for earth and sand mining work, etc. Various types are used, such as a movable conveyor having a movable structure and a special belt conveyor typified by a pipe type belt conveyor.
【０００３】係るベルトコンベヤに用いられるコンベヤ
ベルトの種類は非常に多く、例えば、その芯体にスチー
ルコードを用いたスチールコードコンベヤベルトは、耐
衝撃性、難燃性、耐熱性、耐寒性に優れているため、各
種の運搬物の運搬に使用されている。ところが、スチー
ルコードコンベヤベルトを海底工事現場（例えば、海底
炭鉱）のような腐食性環境下で使用した場合には、スチ
ールコード芯体に発錆や腐食などの問題が生じる。スチ
ールに比べて樹脂は発錆がなく、しかも、芳香族ポリア
ミド樹脂であるアラミドは、主鎖にベンゼン環を有する
ことにより高強度、高弾性であって伸びが小さく、耐熱
性にも優れているという特長を有している。そのため、
アラミド芯体入りコンベヤベルトは、上記した海底炭鉱
のように、スチールコードコンベヤベルトを使用するに
は問題のあるラインや、ベルトの伸びが最小限に制約さ
れるラインや、高張力ベルトなどに使用されている。[0003] There are many types of conveyor belts used in such belt conveyors. For example, a steel cord conveyor belt using a steel cord for its core is excellent in impact resistance, flame retardancy, heat resistance, and cold resistance. Therefore, it is used to transport various types of goods. However, when the steel cord conveyor belt is used in a corrosive environment such as a submarine construction site (for example, a submarine coal mine), problems such as rusting and corrosion occur in the steel cord core. Compared to steel, the resin does not rust, and the aromatic polyamide resin, aramid, has a benzene ring in the main chain, so it has high strength, high elasticity, low elongation, and excellent heat resistance. It has the feature of. for that reason,
Conveyor belts with aramid cores are used for lines that have problems using steel cord conveyor belts, such as the above-mentioned undersea coal mine, lines where belt elongation is restricted to a minimum, and high tension belts. Have been.
【０００４】ところで、アラミド芯体入りコンベヤベル
トは、図１に示すように、アラミド芯体１の上下にクッ
ションゴム層２を介して補強帆布３を配し、該補強帆布
３をカバーゴム４で被覆してなる構造であり、従来、ア
ラミド芯体入りコンベヤベルトを接合するには以下のよ
うな方法で行われていた。 （１）フィンガー接合方式 ベルト端部への切り込みとカバーゴムの剥離 図６（ａ）の平面図に示すように、接合されるべき２本
のアラミド芯体入りコンベヤベルト５、６の上面側また
は下面側のいずれか一方において、それぞれの接合端部
よりベルト長手方向に所定の長さだけ入った位置におい
て、ベルト幅方向に切れ目７、８および９、１０を入れ
る。切れ目７または９においては、ベルトの裏側まで達
するように切り込みを入れ、ベルト先端の三角形状部分
１１、１２を切り落とす。また、切れ目８または１０に
おいては、アラミド芯体を残すように、切り込みはベル
ト表面からアラミド芯体表面に達したところで止める。As shown in FIG. 1, a conveyor belt with an aramid core is provided with reinforcing canvas 3 above and below an aramid core 1 via a cushion rubber layer 2, and the reinforcing canvas 3 is covered with a cover rubber 4. Conventionally, a conveyor belt containing an aramid core is joined by the following method. (1) Finger joining method Cutting into belt ends and peeling of cover rubber As shown in the plan view of FIG. 6A, the upper side of the two aramid core-containing conveyor belts 5, 6 to be joined or Cuts 7, 8, 9, and 10 are made in the belt width direction at positions on either one of the lower surfaces, which are located at predetermined positions in the belt longitudinal direction from the respective joint ends. At the cut 7 or 9, a cut is made so as to reach the back side of the belt, and the triangular portions 11, 12 at the tip of the belt are cut off. Also, at the cut 8 or 10, the cut is stopped when reaching the aramid core surface from the belt surface so as to leave the aramid core.
【０００５】次に、切れ目８または１０からベルト先端
に至る平行四辺形部分１３と１４のカバーゴムと補強帆
布とクッションゴム層をプライヤ等の適切な工具で剥ぎ
取る。[0005] Next, the cover rubber, the reinforcing canvas and the cushion rubber layer of the parallelogram portions 13 and 14 extending from the cuts 8 or 10 to the end of the belt are peeled off with a suitable tool such as a plier.
【０００６】コンベヤベルト５、６の上面側または下面
側の他方においても、同様の作業を行い、図６（ｂ）の
側面図に示すように、ベルト端部にアラミド芯体層（ア
ラミド芯体とクッションゴムの複合体）１を残す。 フィンガー形状の形成 図６（ｃ）の平面図に示すように、接合されるべき一方
のコンベヤベルト５のアラミド芯体層１の幅方向に三角
形状の凸部１５と三角形状の凹部１６が交互に形成され
るようにアラミド芯体層１を切り欠いて、フィンガー形
状を形成する。そして、接合されるべき他方のコンベヤ
ベルト６のアラミド芯体層１の幅方向に、上記凸部１５
と凹部１６に対して相互に進入可能なように、三角形状
の凸部１７と三角形状の凹部１８が交互に形成されるよ
うにアラミド芯体層１を切り欠く。 フィンガー形状の組み合わせ 図６（ｄ）の平面図に示すように、フィンガー形状に形
成された両コンベヤベルト５、６の凸部と凹部を相互に
進入させ、コンベヤベルト５の凸部１５とコンベヤベル
ト６の凸部１７を当接させる。 クッションゴム層、補強帆布およびカバーゴムの被
覆 図６（ｄ）に示すフィンガー形状を組み合わせたアラミ
ド芯体部分１８の上下面に接着剤を塗布し、図６（ｅ）
の断面図に示すように、接着剤に接するように配したク
ッションゴムシート２を介して補強帆布３を配し、その
補強帆布３を未加硫カバーゴムで覆い、未加硫カバーゴ
ムで覆ったものをプレス機（図示せず）で挟んで適切な
圧力と温度で加硫して、接合部をカバーゴム４で被覆し
てベルト端部を接合する。The same operation is performed on the other of the upper and lower sides of the conveyor belts 5 and 6, and as shown in the side view of FIG. 6B, an aramid core layer (aramid core) And a composite of cushion rubber) 1. Formation of Finger Shape As shown in the plan view of FIG. 6C, triangular convex portions 15 and triangular concave portions 16 alternate in the width direction of the aramid core layer 1 of one conveyor belt 5 to be joined. The aramid core layer 1 is cut out so as to form a finger shape. Then, in the width direction of the aramid core layer 1 of the other conveyor belt 6 to be joined, the protrusion 15
The aramid core layer 1 is cut out so that triangular convex portions 17 and triangular concave portions 18 are alternately formed so that the triangular convex portions 17 and the concave portions 16 can enter each other. Combination of finger shapes As shown in the plan view of FIG. 6 (d), the convex portions and concave portions of both the conveyor belts 5, 6 formed in the finger shape enter each other, and the convex portion 15 of the conveyor belt 5 and the conveyor belt. The 6 convex portions 17 are brought into contact with each other. Coating of cushion rubber layer, reinforced canvas and cover rubber Adhesive is applied to the upper and lower surfaces of the aramid core 18 combining the finger shapes shown in FIG.
As shown in the cross-sectional view, the reinforcing canvas 3 is disposed via the cushion rubber sheet 2 disposed in contact with the adhesive, and the reinforcing canvas 3 is covered with the unvulcanized cover rubber and covered with the unvulcanized cover rubber. The resultant is sandwiched between presses (not shown), vulcanized at an appropriate pressure and temperature, and the joint is covered with a cover rubber 4 to join the belt ends.
【０００７】その結果、図１で示すような幅方向断面を
有するアラミド芯体入りコンベヤベルトを得ることがで
きる。As a result, a conveyor belt containing an aramid core having a cross section in the width direction as shown in FIG. 1 can be obtained.
【０００８】（２）上下ラップ接合方式 ベルト端部への切り込みとカバーゴムの剥離 図７（ａ）の平面図に示すように、切れ目７または９に
おいては、ベルトの裏側まで達するように切り込みを入
れ、ベルト先端の三角形状部分１１、１２を切り落と
す。(2) Upper and lower lap joining method Incision into belt end and peeling of cover rubber As shown in the plan view of FIG. 7A, the incision 7 or 9 is cut so as to reach the back side of the belt. Then, the triangular portions 11 and 12 at the tip of the belt are cut off.
【０００９】また、一方のコンベヤベルト５の上側には
切れ目１９を施し、下側には切れ目２０を施す。切れ目
１９、２０のいずれにおいても、アラミド芯体層を残す
ように、切り込みはベルト表面からアラミド芯体表面に
達したところで止められるが、コンベヤベルト５の接合
部のアラミド芯体下面側はコンベヤベルト６の接合部の
アラミド芯体上面側と接合される部分であるので、下側
の切れ目２０の位置は、十分な接合長さを確保できるよ
うな位置とされる。A cut 19 is made on the upper side of one conveyor belt 5, and a cut 20 is made on the lower side. At any of the cuts 19 and 20, the incision is stopped when the aramid core layer surface is reached from the belt surface so that the aramid core layer is left. 6 is a portion to be joined to the upper surface of the aramid core body, so that the position of the lower cut 20 is a position where a sufficient joining length can be secured.
【００１０】また、他方のコンベヤベルト６の上側には
切れ目２１を施し、下側には切れ目２２を施す。切れ目
２１、２２のいずれにおいても、アラミド芯体層を残す
ように、切り込みはベルト表面からアラミド芯体表面に
達したところで止められるが、コンベヤベルト６の接合
部のアラミド芯体上面側はコンベヤベルト５の接合部の
アラミド芯体下面側と接合される部分であるので、上側
の切れ目２１の位置は、十分な接合長さを確保できるよ
うな位置とされる。A cut 21 is made on the upper side of the other conveyor belt 6, and a cut 22 is made on the lower side. In any of the cuts 21 and 22, the cut is stopped when the aramid core layer surface is reached from the belt surface so that the aramid core layer remains, but the upper side of the aramid core body at the joint of the conveyor belt 6 is the conveyor belt. 5 is a portion to be joined to the lower surface side of the aramid core body, so that the position of the upper cut 21 is a position where a sufficient joining length can be secured.
【００１１】次に、図７（ｂ）の側面図に示すように、
切れ目１９、２０、２１および２２からベルト先端に至
る平行四辺形部分のカバーゴムと補強帆布とクッション
ゴム層をプライヤ等の適切な工具で剥ぎ取る。その結
果、図７（ｃ）の平面図に示すように、一方のコンベヤ
ベルト５先端部の下側と他方のコンベヤベルト６先端部
の上側には、ぞれぞれ大きな平行四辺形部分２３、２４
が形成される。 両コンベヤベルト５、６の平行四辺形部分の重ね合
わせ 以上のようにして形成された一方のコンベヤベルト５の
平行四辺形部分２３を上側とし、他方のコンベヤベルト
６の平行四辺形部分２４を下側として、これら平行四辺
形部分２３、２４を、図７（ｄ）の平面図に示すように
重ね合わせる。 クッションゴム層、補強帆布およびカバーゴムの被
覆 図７（ｄ）に示すように重ね合わせた両コンベヤベルト
５、６の上下の空所に未加硫カバーゴムを介装し、未加
硫カバーゴムを介装したものをプレス機（図示せず）で
挟んで適切な圧力と温度で加硫して、図７（ｅ）の断面
図に示すように、接合部をカバーゴム４で被覆してベル
ト端部を接合する。Next, as shown in the side view of FIG.
The cover rubber, the reinforcing canvas and the cushion rubber layer of the parallelogram from the cuts 19, 20, 21 and 22 to the belt end are peeled off with a suitable tool such as pliers. As a result, as shown in the plan view of FIG. 7C, a large parallelogram portion 23 is provided below the tip of one conveyor belt 5 and above the tip of the other conveyor belt 6, respectively. 24
Is formed. Superposition of the parallelogram portions of the two conveyor belts 5, 6 The parallelogram portion 23 of one conveyor belt 5 formed as described above is set to the upper side, and the parallelogram portion 24 of the other conveyor belt 6 is set to the lower side. As a side, these parallelogram portions 23 and 24 are overlapped as shown in the plan view of FIG. Coating of cushion rubber layer, reinforcing canvas and cover rubber Unvulcanized cover rubber is interposed in the upper and lower spaces of both conveyor belts 5 and 6 which are superimposed as shown in FIG. 7 is sandwiched by a pressing machine (not shown), vulcanized at an appropriate pressure and temperature, and the joint is covered with a cover rubber 4 as shown in the sectional view of FIG. Join the belt ends.
【００１２】その結果、図１で示すような幅方向断面を
有するアラミド芯体入りコンベヤベルトを得ることがで
きる。As a result, a conveyor belt containing an aramid core having a cross section in the width direction as shown in FIG. 1 can be obtained.
【００１３】[0013]
【発明が解決しようとする課題】フィンガー接合方式で
も、上下ラップ接合方式でも合せ面に介在する接着剤や
ゴムの加硫による接合であるため、接合強さは必ずしも
十分ではない。しかも、アラミドの引張り強度（約６３
０〜２２００Ｎ／mm2） に較べて、ゴムのせん断強度
（例えば、天然ゴムでは、約３．０〜５．０Ｎ／mm2）
は非常に小さく、コンベヤベルトの使用環境（高温、高
湿度、酸化雰囲気など）によっては、短期間のうちに接
合部に亀裂やゴム剥離が生じることがあるので、接合長
さを長くしなければならない。In both the finger joining method and the upper and lower lap joining methods, the joining strength is not always sufficient because the joining is performed by vulcanizing an adhesive or rubber interposed on the mating surface. Moreover, the tensile strength of aramid (about 63
0 to 2200 N / mm 2 ), compared with the shear strength of the rubber (for example, about 3.0 to 5.0 N / mm 2 for natural rubber).
Is very small, and depending on the operating environment of the conveyor belt (high temperature, high humidity, oxidizing atmosphere, etc.), cracks or rubber peeling may occur in the joint in a short period of time. No.
【００１４】本発明は従来の技術の有するこのような問
題点に鑑みてなされたものであって、その目的は、十分
な接合強度を有する耐久性に優れたアラミド芯体入りコ
ンベヤベルト及びそのアラミド芯体入りコンベヤベルト
の接合方法を提供することにある。The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a durable aramid core-containing conveyor belt having sufficient bonding strength and an aramid core. An object of the present invention is to provide a method for joining a conveyor belt containing a core.
【００１５】[0015]
【課題を解決するための手段】上記目的を達成するため
に本発明は、２本のコンベヤベルトの接合部のアラミド
芯体層を縫い合わせることにより、アラミド芯体入りコ
ンベヤベルトの接合部のベルト張力の伝達は、ゴム層だ
けでなく、係る縫合部も負担するので、接合部の強度が
向上する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a belt tension at a junction of a conveyor belt containing an aramid core by sewing the aramid core layer at the junction of two conveyor belts. Is transmitted not only to the rubber layer but also to the sewn portion, so that the strength of the joint is improved.
【００１６】[0016]
【発明の実施の形態】すなわち、本発明の要旨は、アラ
ミド芯体の上下にクッションゴム層を介して補強帆布を
配し、該補強帆布をカバーゴムで被覆してなるアラミド
芯体入りコンベヤベルトにおいて、接合部がアラミド芯
体を縫合したものであることを特徴とするアラミド芯体
入りコンベヤベルトにある。DESCRIPTION OF THE PREFERRED EMBODIMENTS The gist of the present invention is to provide a conveyor belt containing an aramid core, in which reinforcing canvas is arranged above and below an aramid core via a cushion rubber layer, and the reinforcing canvas is covered with a cover rubber. Wherein the joint portion is formed by suturing an aramid core body.
【００１７】かかるアラミド芯体入りコンベヤベルトを
接合するには、以下の方法が好ましい。すなわち、本発
明の接合方法の要旨は、アラミド芯体の上下にクッショ
ンゴム層を介して補強帆布を配し、該補強帆布をカバー
ゴムで被覆してなるアラミド芯体入りコンベヤベルトの
接合方法であって、以下の工程（ａ）〜（ｅ）からなる
アラミド芯体入りコンベヤベルトの接合方法にある。 （ａ）接合されるべき２本のコンベヤベルトのそれぞれ
の端部よりベルト長手方向に所定の長さだけ入った位置
において、ベルト表面からアラミド芯体にかけてベルト
幅方向に切れ目を入れて、（ｂ）補強帆布を含むカバー
ゴム材料を剥ぎ取ってアラミド芯体にクッションゴムが
付着した芯体層を露出させ、（ｃ）現れたアラミド芯体
層の先端部を合わせ、（ｄ）合わせたアラミド芯体層を
縫合し、（ｅ）縫合したアラミド芯体層をカバーゴムで
被覆する。In order to join such a conveyor belt containing an aramid core, the following method is preferred. That is, the gist of the joining method of the present invention is a joining method of a conveyor belt containing an aramid core, in which reinforcing canvas is disposed above and below an aramid core via a cushion rubber layer, and the reinforcing canvas is covered with a cover rubber. In addition, there is provided a method for joining an aramid core-containing conveyor belt comprising the following steps (a) to (e). (A) A cut is made in the width direction of the belt from the belt surface to the aramid core at a position that is a predetermined length in the belt longitudinal direction from each end of the two conveyor belts to be joined, and (b) ) Peeling off the cover rubber material including the reinforcing canvas to expose the core layer with the cushion rubber attached to the aramid core, (c) aligning the tip of the emerged aramid core layer, and (d) combining the aramid core The body layers are stitched, and (e) the stitched aramid core layer is covered with a cover rubber.
【００１８】所定の接合強さを得るために、アラミド芯
体層を合わせる長さは、５００mm以上とするのが好まし
い。しかし、その長さを２０００mm以上に増やしても、
それほで接合強さは向上せず、接合作業の煩雑さが増す
だけなので、２０００mm以下にするのが合理的である。In order to obtain a predetermined bonding strength, it is preferable that the length of the combined aramid core layer is 500 mm or more. However, even if the length is increased to 2000mm or more,
At that rate, the joining strength is not improved, and only the complexity of the joining operation is increased. Therefore, it is reasonable to set the thickness to 2000 mm or less.
【００１９】また、ベルト幅方向に入れる切れ目をベル
ト端面に対して斜めにすれば、ベルト端面に直角に切れ
目を入れる場合に比べて接合部を剥離させようとする力
が軽減されるので好ましい。図２（ａ）に示すように、
切れ目２５をベルト端面２６、２６に対して直角に入れ
た場合、ベルト張力Ｆがそのまま切れ目２５に直角に作
用するが、図２（ｂ）に示すように、切れ目２７をベル
ト端面２８、２８に対して斜めに入れれば、切れ目２７
に直角に作用する力はＦ×ｓｉｎθとなり、小さくな
る。そこで、６０°≦θ≦８０°とするのが好ましい。
しかし、いたずらにθを小さくすることは接合部を不当
に長くすることにつながり、効率的な作業ができない。
そこで、θ＝７３°をねらいとするのが接合作業性を向
上する上で好ましい。Further, it is preferable to form a cut in the width direction of the belt obliquely with respect to the end face of the belt because a force for peeling the joint portion is reduced as compared with a case where a cut is made at a right angle to the end face of the belt. As shown in FIG.
When the cut 25 is formed at right angles to the belt end faces 26, 26, the belt tension F acts on the cut 25 at right angles as it is, but as shown in FIG. If you insert it diagonally, the cut 27
Is F × sin θ, which is small. Therefore, it is preferable that 60 ° ≦ θ ≦ 80 °.
However, unnecessarily reducing θ leads to an unreasonably long joining portion, which makes efficient work impossible.
Therefore, it is preferable to aim at θ = 73 ° from the viewpoint of improving the joining workability.
【００２０】また、両コンベヤベルト接合部のアラミド
芯体層の幅方向に凸部と凹部が交互に形成されるように
切り欠いて、一方のコンベヤベルトのアラミド芯体層の
上記凸部を他方のコンベヤベルトのアラミド芯体層の上
記凹部に進入させる方法は、凸部と凹部の形成作業がや
や煩雑であるが、アラミド芯体の縫合長さが長くなり、
接合強度が向上するので、好ましい。Further, the aramid core layers at the joint portions of both conveyor belts are notched so that convex portions and concave portions are alternately formed in the width direction, and the convex portions of the aramid core layer of one conveyor belt are connected to the other. The method of entering the above-mentioned concave portion of the aramid core layer of the conveyor belt is somewhat complicated in forming the convex portion and the concave portion, but the stitching length of the aramid core is long,
It is preferable because the joining strength is improved.
【００２１】この場合、接合部のアラミド芯体層同士を
上下方向に重ね合わる方法は、凸部と凹部を形成する方
法に較べてやや簡便である。In this case, the method of vertically stacking the aramid core layers at the bonding portion is slightly simpler than the method of forming the convex portion and the concave portion.
【００２２】さらに、アラミド芯体層の縫合をアラミド
糸で行えば、高強度、高弾性で、耐熱性、耐薬品性およ
び耐候性に優れたアラミド糸の作用により、飛躍的に接
合部の耐久性を向上できるので好ましい。Further, if the aramid core layer is sewn with aramid yarn, the aramid yarn having high strength, high elasticity, and excellent heat resistance, chemical resistance and weather resistance will dramatically improve the durability of the joint. It is preferable because the property can be improved.
【００２３】[0023]
【実施例】以下に、本発明の実施例を説明する。Embodiments of the present invention will be described below.
【００２４】本実施例で用いたベルトは、図１に示すよ
うな断面構造であって、幅ｗが１０００mm、厚さｔが約
１８mm、アラミド芯体１としては帝人社製の芳香族ポリ
アミド樹脂帆布（名称「テクノーラ」、スダレ織、公称
強度１０００Ｎ／mm幅）１プライを用い、クッションゴ
ム２として、天然ゴムとスチレン・ブタジエンゴムの混
合ゴム組成物を用い、補強帆布３としてナイロン平織を
用い、カバーゴムとして天然ゴム組成物を用いた。ま
た、アラミド芯体の縫合に使用したアラミド糸は、アラ
ミド芯体と同じ材質のものを使用した。The belt used in this embodiment has a sectional structure as shown in FIG. 1 and has a width w of 1000 mm, a thickness t of about 18 mm, and an aromatic polyamide resin 1 made by Teijin Limited as the aramid core 1. One ply of canvas (named "Technola", Sudare weave, nominal strength of 1000 N / mm width) is used. As the cushion rubber 2, a mixed rubber composition of natural rubber and styrene-butadiene rubber is used. As the reinforcing canvas 3, a plain nylon weave is used. A natural rubber composition was used as a cover rubber. The aramid thread used for suturing the aramid core was made of the same material as the aramid core.
【００２５】本実施例のアラミド芯体入りコンベヤベル
トの接合方法は基本的に上記した通りであり、従来の接
合方法との違いは、重ね合わせたアラミド芯体をアラミ
ド糸で縫合し、縫合後に接合部全体を被覆する点にあ
る。The method of joining the conveyor belt containing the aramid core of this embodiment is basically as described above. The difference from the conventional joining method is that the overlapped aramid core is sewn with an aramid thread, and after suturing. The point is to cover the entire joint.
【００２６】すなわち、フィンガー接合方式では、図３
（ｅ）に示すように、フィンガー形状のアラミド芯体に
沿ってアラミド糸２９で縫合し、上下ラップ接合方式で
は、図４（ｅ）に示すように、アラミド芯体の重ね合わ
せ端部およびその内側部をアラミド糸２９で縫合した。That is, in the finger joining method, FIG.
As shown in FIG. 4E, an aramid thread 29 is sewn along the finger-shaped aramid core, and in the upper and lower lap joining method, as shown in FIG. The inside was sewn with aramid thread 29.
【００２７】次に、本発明による接合方法を採用したア
ラミド芯体入りコンベヤベルトの耐久性と、従来の接合
方法によるアラミド芯体入りコンベヤベルトの耐久性と
を比較する実験を行ったので説明する。Next, an experiment was conducted to compare the durability of the conveyor belt containing an aramid core using the joining method according to the present invention with the durability of the conveyor belt containing an aramid core using the conventional joining method. .
【００２８】その実験は、図５に示すように、径が５０
０mmのプーリ３０、３１の間にベルト３２を巻装し、プ
ーリ３０を駆動してベルト３２を矢示３３方向に２００
ｍ／min の速度で走行させて、小プーリ３４でベルト３
２を上方に押圧しつつ、２回／サイクルでベルト３２を
屈曲させ、接合部が剥離するまでの屈曲回数を調査する
という方法であり、その結果を次の表１に示す。なお、
このベルト走行試験に用いたベルトは、本発明による接
合方法のベルトも従来の接合方法によるベルトも、その
幅は２００mm、厚さは１８mm、長さは５ｍであり、安全
率は８とした。なお、表１のＬS の意味は、図３、
４、６、７に示す通りである。In the experiment, as shown in FIG.
A belt 32 is wound between pulleys 30 and 31 of 0 mm, and the pulley 30 is driven to move the belt 32 in the direction of arrow 33 by 200.
m / min, and the belt 3
While pressing the belt 2 upward, the belt 32 is bent twice / cycle, and the number of bendings until the joint is peeled is examined. The results are shown in Table 1 below. In addition,
The belt used in the belt running test was 200 mm in width, 18 mm in thickness, 5 m in length, and the safety factor was 8 for both the belt of the joining method according to the present invention and the belt of the conventional joining method. The meaning of L S in Table 1 is as shown in FIG.
4, 6, and 7.
【００２９】[0029]
【表１】 [Table 1]
【００３０】表１に明らかなように、本発明による接合
方法を採用したベルトは、従来の接合方法によるベルト
に比して約１．５倍以上の耐屈曲性を有しており、極め
て優れた耐久性を有することが明らかである。As apparent from Table 1, the belt employing the joining method according to the present invention has about 1.5 times or more the bending resistance as compared with the belt according to the conventional joining method, and is extremely excellent. It is evident that it has good durability.
【００３１】[0031]
【発明の効果】本発明は上記のとおり構成されているの
で、十分な接合強度を有する耐久性に優れたアラミド芯
体入りコンベヤベルト及びそのアラミド芯体入りコンベ
ヤベルトの接合方法を提供することができる。Since the present invention is constructed as described above, it is possible to provide an aramid core-containing conveyor belt having sufficient bonding strength and excellent durability, and a method for bonding the aramid core-containing conveyor belt. it can.
【００３２】特に、請求項３記載の発明によれば、必要
な接合強さを経済的に得ることができるという効果があ
る。In particular, according to the third aspect of the present invention, there is an effect that the required joining strength can be obtained economically.
【００３３】特に、請求項４記載の発明によれば、接合
部の耐剥離性を向上しうるという効果がある。In particular, according to the fourth aspect of the invention, there is an effect that the peeling resistance of the joint can be improved.
【００３４】特に、請求項５記載の発明によれば、重ね
合わせ部の縫合長さが長くなり、接合強度がさらに向上
するという効果がある。In particular, according to the fifth aspect of the invention, there is an effect that the stitching length of the overlapped portion is lengthened and the joining strength is further improved.
【００３５】特に、請求項６記載の発明によれば、請求
項５記載の接合方法に較べて接合作業がやや簡便である
という効果がある。In particular, according to the invention as set forth in claim 6, there is an effect that the joining operation is slightly simpler than the joining method according to claim 5.
【００３６】特に、請求項７記載の発明によれば、飛躍
的に接合部の耐久性を向上できるという効果がある。In particular, according to the seventh aspect of the invention, there is an effect that the durability of the joint can be remarkably improved.
【図１】アラミド芯体入りコンベヤベルトの幅方向の断
面図である。FIG. 1 is a cross-sectional view in the width direction of a conveyor belt containing an aramid core.
【図２】ベルト端面に対して切れ目を入れる方向による
ベルト張力の作用の違いを説明する図である。FIG. 2 is a diagram illustrating a difference in the action of belt tension depending on a direction in which a cut is made to an end surface of a belt.
【図３】本発明のアラミド芯体入りコンベヤベルトの接
合方法を工程順に説明する図である。FIG. 3 is a view for explaining a method of joining the aramid core-containing conveyor belt of the present invention in the order of steps.
【図４】本発明のアラミド芯体入りコンベヤベルトの別
の接合方法を工程順に説明する図である。FIG. 4 is a diagram for explaining another joining method of the conveyor belt containing an aramid core of the present invention in the order of steps.
【図５】ベルトの耐久性の試験方法を説明する図であ
る。FIG. 5 is a diagram illustrating a method for testing durability of a belt.
【図６】従来のアラミド芯体入りコンベヤベルトの接合
方法を工程順に説明する図である。FIG. 6 is a diagram for explaining a conventional method of joining an aramid core-containing conveyor belt in the order of steps.
【図７】従来のアラミド芯体入りコンベヤベルトの別の
接合方法を工程順に説明する図である。FIG. 7 is a view for explaining another joining method of a conventional conveyor belt containing an aramid core body in the order of steps.
１…アラミド芯体 ２…クッションゴム層 ３…補強帆布 ４…カバーゴム ５、６…アラミド芯体入りコンベヤベルト ７、８、９、１０、１９、２０、２１、２２、２５、２
７…切れ目 １５、１７…凸部 １６、１８…凹部 ２９…アラミド糸DESCRIPTION OF SYMBOLS 1 ... Aramid core body 2 ... Cushion rubber layer 3 ... Reinforced canvas 4 ... Cover rubber 5, 6 ... Conveyor belt containing aramid core body 7, 8, 9, 10, 19, 20, 21, 22, 25, 2
7 ... cut 15, 17 ... convex part 16, 18 ... concave part 29 ... aramid thread
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｋ 277:00 Ｂ２９Ｋ 277:00 Ｆターム(参考） 3F024 AA11 AA19 BA03 BA07 CA01 CA04 CA08 CB03 CB07 CB12 CB17 CB23 4F213 AA30 AA45 AD16 AG16 AG23 WA15 WA53 WA58 WA67 WB01────────────────────────────────────────────────── ─── of the front page continued (51) Int.Cl 7 identification mark FI theme Court Bu (reference) B29K 277:. 00 B29K 277 : 00 F -term (reference) 3F024 AA11 AA19 BA03 BA07 CA01 CA04 CA08 CB03 CB07 CB12 CB17 CB23 4F213 AA30 AA45 AD16 AG16 AG23 WA15 WA53 WA58 WA67 WB01
Claims (7)
を介して補強帆布を配し、該補強帆布をカバーゴムで被
覆してなるアラミド芯体入りコンベヤベルトにおいて、
接合部がアラミド芯体を縫合したものであることを特徴
とするアラミド芯体入りコンベヤベルト。1. A conveyor belt containing an aramid core, wherein reinforcing canvas is disposed above and below an aramid core via a cushion rubber layer, and the reinforcing canvas is covered with a cover rubber.
A conveyor belt containing an aramid core, wherein a joint portion is formed by sewing an aramid core.
を介して補強帆布を配し、該補強帆布をカバーゴムで被
覆してなるアラミド芯体入りコンベヤベルトの接合方法
であって、以下の工程（ａ）〜（ｅ）からなるアラミド
芯体入りコンベヤベルトの接合方法。 （ａ）接合されるべき２本のコンベヤベルトのそれぞれ
の端部よりベルト長手方向に所定の長さだけ入った位置
において、ベルト表面からアラミド芯体にかけてベルト
幅方向に切れ目を入れて、（ｂ）補強帆布を含むゴム材
料を剥ぎ取ってアラミド芯体を露出させ、（ｃ）現れた
アラミド芯体層の先端部を合わせ、（ｄ）合わせたアラ
ミド芯体層を縫合し、（ｅ）縫合したアラミド芯体層を
カバーゴムで被覆する。2. A method of joining a conveyor belt containing an aramid core, comprising: a reinforcing canvas disposed above and below an aramid core via a cushion rubber layer; and the reinforcing canvas covered with a cover rubber. (A) A method for joining a conveyor belt containing an aramid core, comprising the steps (a) to (e). (A) A cut is made in the width direction of the belt from the belt surface to the aramid core at a position that is a predetermined length in the belt longitudinal direction from each end of the two conveyor belts to be joined, and (b) ) The rubber material including the reinforcing canvas is peeled off to expose the aramid core layer, (c) the tip of the emerged aramid core layer is joined, (d) the joined aramid core layer is sewn, and (e) suturing is performed. The obtained aramid core layer is covered with a cover rubber.
０mm〜２０００mmである請求項２記載のアラミド芯体入
りコンベヤベルトの接合方法。3. The combined length of the aramid core layer is 50.
The method for joining an aramid core-containing conveyor belt according to claim 2, which is 0 mm to 2000 mm.
面に対して斜めであり、その斜めの角度が６０〜８０°
である請求項２または３記載のアラミド芯体入りコンベ
ヤベルトの接合方法。4. A cut in the width direction of the belt is oblique to an end face of the belt, and the oblique angle is 60 to 80 °.
The method for bonding a conveyor belt containing an aramid core according to claim 2 or 3.
の幅方向に凸部と凹部が交互に形成されるように切り欠
いて、（ｃ）工程においてアラミド芯体層の先端部を合
わせる方法が、一方のコンベヤベルトのアラミド芯体の
上記凸部を他方のコンベヤベルトのアラミド芯体の上記
凹部に進入させる方法である請求項２、３または４記載
のアラミド芯体入りコンベヤベルトの接合方法。5. A method in which protrusions and recesses are cut out alternately in the width direction of the aramid core appearing in the step (b), and the tip of the aramid core layer is aligned in the step (c). 5. The method for joining an aramid core-containing conveyor belt according to claim 2, 3 or 4, wherein the method comprises causing the convex portion of the aramid core of one conveyor belt to enter the concave portion of the aramid core of the other conveyor belt. .
端部を合わせる方法が、アラミド芯体層の先端部を上下
方向に重ね合わせる方法である請求項２、３または４記
載のアラミド芯体入りコンベヤベルトの接合方法。6. The aramid core according to claim 2, wherein the method of aligning the tip of the aramid core layer in the step (c) is a method of vertically overlapping the tip of the aramid core layer. Conveyor belt joining method.
合をアラミド糸で行う請求項２、３、４、５または６記
載のアラミド芯体入りコンベヤベルトの接合方法。7. The method for joining an aramid core-containing conveyor belt according to claim 2, wherein the aramid core layer is sewn with an aramid thread in the step (d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001177987A JP2002372106A (en) | 2001-06-13 | 2001-06-13 | Conveyor belt with aramid core body and joining method for conveyor belt with aramid core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001177987A JP2002372106A (en) | 2001-06-13 | 2001-06-13 | Conveyor belt with aramid core body and joining method for conveyor belt with aramid core body |
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| Publication Number | Publication Date |
|---|---|
| JP2002372106A true JP2002372106A (en) | 2002-12-26 |
Family
ID=19018754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001177987A Pending JP2002372106A (en) | 2001-06-13 | 2001-06-13 | Conveyor belt with aramid core body and joining method for conveyor belt with aramid core body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002372106A (en) |
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| AT500085A1 (en) * | 2003-05-28 | 2005-10-15 | Semperit Ag Holding | SPLICE STRUCTURE FOR LENGTH PROFILES |
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| JP2011500477A (en) * | 2007-10-22 | 2011-01-06 | アプライド マテリアルズ インコーポレイテッド | Method and apparatus for transferring a substrate carrier |
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| CN102943842A (en) * | 2012-11-26 | 2013-02-27 | 昆山特力伯传动科技有限公司 | Jointing method of metal core wires of conveyor belt |
| KR20160145038A (en) * | 2014-04-16 | 2016-12-19 | 프로이오닉 게엠베하 | Method for fusing aramid/aramid fibres |
| KR102332019B1 (en) | 2014-04-16 | 2021-11-29 | 프로이오닉 게엠베하 | Method for fusing aramid/aramid fibres |
| CN105692052A (en) * | 2016-03-11 | 2016-06-22 | 兖州煤业股份有限公司 | Aramid fiber conveyer belt and lapping method thereof |
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| CN113022054A (en) * | 2019-12-24 | 2021-06-25 | 霓达株式会社 | Seamless belt and method for manufacturing seamless belt |
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| Date | Code | Title | Description |
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| A02 | Decision of refusal |
Effective date: 20040309 Free format text: JAPANESE INTERMEDIATE CODE: A02 |