JP7299005B2 - Electrical resistance measuring device for conductive fiber thread - Google Patents

Electrical resistance measuring device for conductive fiber thread Download PDF

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JP7299005B2
JP7299005B2 JP2018181572A JP2018181572A JP7299005B2 JP 7299005 B2 JP7299005 B2 JP 7299005B2 JP 2018181572 A JP2018181572 A JP 2018181572A JP 2018181572 A JP2018181572 A JP 2018181572A JP 7299005 B2 JP7299005 B2 JP 7299005B2
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英正 新家
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Seiren Co Ltd
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本発明は、導電性繊維糸の電気抵抗を連続的に測定する装置に関するものである。 The present invention relates to an apparatus for continuously measuring electrical resistance of conductive fiber yarns.

従来、導電性繊維糸の電気抵抗は、例えば導電性繊維糸が金属やカーボンのなどの単一組成物からなる場合には、該繊維糸の断面積を測定し、該組成物の固有抵抗と断面積から間接的に算出していた。
しかしながら、導電性繊維糸が金属短繊維を含む混紡糸条などの場合は、混紡比率や混繊の程度によって電気抵抗が大きく変化するため、正確な電気抵抗を得るためには得られた導電性繊維糸の抵抗を直接測定する必要がある。
このような場合の電気抵抗の測定方法としては、導電性繊維糸を製造した後、所定長さに切断し、該繊維糸の両端に一定電流を流し、電圧降下を計ることから抵抗値を算出するのが一般的であった。 Conventionally, the electrical resistance of a conductive fiber yarn is measured by measuring the cross-sectional area of the fiber yarn, for example, when the conductive fiber yarn consists of a single composition such as metal or carbon, and calculating the specific resistance of the composition. It was calculated indirectly from the cross-sectional area.
However, when the conductive fiber yarn is a blended yarn containing metal short fibers, the electrical resistance varies greatly depending on the blending ratio and the degree of blending. It is necessary to directly measure the resistance of the fiber yarn.
As a method for measuring the electrical resistance in such a case, after manufacturing the conductive fiber yarn, cut it to a predetermined length, apply a constant current to both ends of the fiber yarn, and measure the voltage drop to calculate the resistance value. It was common to

しかしながら、上記の方法は測定に手間と時間がかかるので、製造された導電性繊維糸すべての電気抵抗を測定することは困難であり、抜き取り検査にならざるを得ないのが実情であった。
また、上記の方法で測定される電気抵抗は、所定長さ全体にならされた平均値であるため、導電性繊維糸製造中に発生する短周期の抵抗値の変化（斑）を検出することは不可能であった。 However, since the above method requires time and effort for measurement, it is difficult to measure the electrical resistance of all the manufactured conductive fiber yarns, and the actual situation is that there is no choice but to conduct sampling inspections.
In addition, since the electrical resistance measured by the above method is an average value smoothed over the entire predetermined length, it is possible to detect short-period changes in the resistance value (unevenness) that occur during the production of the conductive fiber yarn. was impossible.

そこで、導電性繊維糸の電気抵抗を連続的に測定する方法として、特許文献１が提案されている。
特許文献１には、導電性繊維糸の電気抵抗を測定するに際し、該導電性繊維糸を、間隔をおいて配置した２個の回転可能な電極に接触させつつ一定張力下で走行させ、かつ該電極間に定電圧を印加して、該電極間を走行する導電性繊維糸に流れる電流値を連続的に検出することを特徴とする導電性繊維糸の電気抵抗測定方法が開示されている。
この電気抵抗測定方法によれば、可能な限り大きな間隔をおいて配された２個の大径の電極を接触子として、これに導電性繊維糸を捲回させて一定張力に保持して走行させることにより、導電性繊維糸と各ローラーとの大きな接触長を確保して接触抵抗を減少させると共に、その接触抵抗の影響を相対的に少なくするため導電性繊維糸の測定長を長くとり、測定誤差を低減させようとしている。 Therefore, Patent Document 1 has been proposed as a method for continuously measuring the electrical resistance of a conductive fiber yarn.
In Patent Document 1, when measuring the electrical resistance of a conductive fiber thread, the conductive fiber thread is run under a constant tension while being in contact with two rotatable electrodes arranged at intervals, and A method for measuring the electrical resistance of a conductive fiber yarn is disclosed, which comprises applying a constant voltage between the electrodes and continuously detecting a current value flowing through the conductive fiber yarn running between the electrodes. .
According to this method of measuring electrical resistance, two large-diameter electrodes arranged at a distance as large as possible are used as contactors, and a conductive fiber thread is wound around the contactors and held at a constant tension while running. By increasing the length of contact between the conductive fiber yarn and each roller, the contact resistance is reduced by securing a large contact length, and the measurement length of the conductive fiber yarn is increased to relatively reduce the influence of the contact resistance, We are trying to reduce the measurement error.

特開平７－１４６３１８号公報JP-A-7-146318

特許文献１に記載の電気抵抗測定方法は、上述したように走行する導電性繊維糸を大きく間隔をおいて配された２個の回転する大径の電極に捲回して一定張力で走行させることにより、電極と導電性繊維糸との接触抵抗の絶対値を低減して安定化し、更に測定間隔を長くして相対的に接触抵抗の影響を低減させようとしている。しかしながら、接触抵抗そのものをゼロにはできないため、電気抵抗が小さい金属繊維や半導体である炭素繊維などの導電性繊維糸の正確な電気抵抗を求めることは難しい。
すなわち、繊維の電気抵抗に対して、接触抵抗が大きければ、それらの接触抵抗が測定値の大部分を占め、導電性繊維糸自体の電気抵抗を正確に測定することができなくなる。このことは、仮に繊維糸の張力を一定に保って安定化させたとしても、その測定手法を変更しないかぎり前記接触抵抗を排除することはできない。
また更に、２個の前記電極間の距離を長く設定して、同電極と導電性繊維糸との接触抵抗の影響を相対的に少なくすることも考えられるが、測定装置が大型化するという新たな課題が発生する。
このように、上記公報に開示された従来の電気抵抗測定方法では、ローラーと導電性繊維糸との接触抵抗を少なくすると共に測定精度を高めようとしているものの、特に、金属繊維や半導体の炭素繊維等のように低い抵抗の導電性繊維糸に対しては、前記接触抵抗が余りにも大きいため満足な結果が得られない。
また、上述の公報に開示された測定装置は、回転電極がローラー軸、カップリング、ロータリーコネクターなどを介して定電圧印加電源および電流検出器と接続されるが、構造が複雑になり、また、正確な測定値を得ることが困難である。
また、ロータリーコネクターにおいて、ローラー軸と電気的に導通を得るには金属ブラシあるいは水銀を回転部位に使用することが知られているが、金属ブラシでは円滑な回転と導通を得ることはできない虞があり、また、水銀はコネクターから漏れないようシーリングが施されるため、ローラー軸の円滑な回転を得ることができない虞がある。
このように構造が複雑化し、且つ大型化せざるを得ず、測定装置に要する費用が高くなり、いずれにしても汎用化することは難しい。
本発明は、かかる課題を解決すべくなされたものであり、走行する導電性繊維糸の長手方向の電気抵抗を、導電性繊維糸を所定長さに切断することなく、且つ、連続して測定するとともに、導電性繊維糸の走行長（巻き取り長さ）を測定する測定装置を提供することを目的としている。 In the method for measuring electrical resistance described in Patent Document 1, as described above, the running conductive fiber thread is wound around two rotating large-diameter electrodes arranged at a large interval, and is run under a constant tension. Therefore, the absolute value of the contact resistance between the electrode and the conductive fiber thread is reduced and stabilized, and the measurement interval is lengthened to relatively reduce the influence of the contact resistance. However, since the contact resistance itself cannot be zero, it is difficult to obtain an accurate electrical resistance of a conductive fiber yarn such as a metal fiber or a semiconducting carbon fiber, which has a low electrical resistance.
That is, if the contact resistance is large relative to the electrical resistance of the fiber, the contact resistance accounts for most of the measured value, making it impossible to accurately measure the electrical resistance of the conductive fiber yarn itself. This means that even if the tension of the fiber thread is kept constant and stabilized, the contact resistance cannot be eliminated unless the measurement method is changed.
Furthermore, it is possible to set the distance between the two electrodes long to relatively reduce the influence of the contact resistance between the electrodes and the conductive fiber thread. problems arise.
As described above, in the conventional electrical resistance measurement method disclosed in the above publication, although the contact resistance between the roller and the conductive fiber thread is reduced and the measurement accuracy is improved, in particular, metal fibers and semiconductor carbon fibers For conductive fiber yarns with low resistance such as the above, satisfactory results cannot be obtained because the contact resistance is too large.
In addition, in the measuring device disclosed in the above-mentioned publication, the rotating electrode is connected to the constant voltage applying power supply and the current detector through the roller shaft, coupling, rotary connector, etc., but the structure is complicated and Difficult to get accurate measurements.
In addition, in the rotary connector, it is known to use a metal brush or mercury in the rotating portion to obtain electrical continuity with the roller shaft, but there is a fear that smooth rotation and continuity cannot be obtained with the metal brush. In addition, since mercury is sealed so that it does not leak from the connector, there is a possibility that smooth rotation of the roller shaft cannot be obtained.
As described above, the structure becomes complicated and the size of the measuring device is inevitably increased, and the cost required for the measuring device increases.
The present invention has been made to solve this problem, and continuously measures the electrical resistance in the longitudinal direction of the running conductive fiber yarn without cutting the conductive fiber yarn into a predetermined length. Another object of the present invention is to provide a measuring device for measuring the running length (winding length) of the conductive fiber yarn.

上記課題を解決するため、
本発明は、（１）、導電性繊維糸の電気抵抗の測定装置において、
前記導電性繊維糸を走行させる走行手段と、
前記導電性繊維糸の電気抵抗を測定する電気抵抗測定手段と、
前記導電性繊維糸の走行長を測定する走行長測定手段と、
測定された電気抵抗と走行長測定値を関連付けて演算表示する演算記録表示手段とからなり、
前記電気抵抗測定手段における間隔をおいて配置された一対の電極が櫛状に並んだ複数の接触子を有し
前記電極は前記接触子の部分で前記導電性繊維糸と接触し、
前記導電性繊維糸は、前記接触子に接触するように前記接触子間にジグザグ状に挿通されることを特徴とする測定装置。
また、（２）、走行手段が、巻き取りローラーであることを特徴とする（１）に記載の測定装置に存する。
また、（３）、電気抵抗測定手段が、導電性繊維糸が接触する一対の電極と、定電流付与手段と、電圧測定手段と、前記定電流付与手段によって流される電流値と、電圧測定手段によって測定した電圧値に基づいて前記導電性繊維糸の抵抗値を演算する演算手段とからなることを特徴とする（１）又は（２）に記載の測定装置に存する。
また、（４）走行長測定手段が、巻き取りローラー回転数センサーと、巻き取りローラーの直径測定用変位センサーを有することを特徴とする（１）～（３）の何れか一項に記載の測定装置に存する。
In order to solve the above problems,
The present invention provides (1) a device for measuring the electrical resistance of a conductive fiber yarn,
a running means for running the conductive fiber yarn;
electrical resistance measuring means for measuring the electrical resistance of the conductive fiber yarn;
a running length measuring means for measuring the running length of the conductive fiber yarn;
a calculation record display means for calculating and displaying the measured electrical resistance and the measured travel length in association with each other;
A pair of spaced apart electrodes in the electrical resistance measuring means has a plurality of contacts arranged in a comb shape.
the electrode is in contact with the conductive fiber thread at the contactor portion;
A measuring device , wherein the conductive fiber thread is inserted between the contacts in a zigzag pattern so as to contact the contacts .
(2) The measuring apparatus according to (1), wherein the running means is a take-up roller.
(3) the electrical resistance measuring means includes a pair of electrodes with which the conductive fiber yarn is in contact, a constant current applying means, a voltage measuring means, a current value supplied by the constant current applying means, and a voltage measuring means; The measuring device according to (1) or (2), further comprising computing means for computing the resistance value of the conductive fiber yarn based on the voltage value measured by the measuring device.
Further, (4) the running length measuring means according to any one of (1) to (3), characterized in that it has a winding roller rotation speed sensor and a displacement sensor for measuring the diameter of the winding roller. It resides in the measuring device.

本発明によれば、導電性繊維糸の巻き取り長さを測定するとともに、導電性繊維糸の電気抵抗を、該導電性繊維糸を切断することなく、連続的にかつバラツキを小さく測定することができるので、抜き取り法で電気抵抗を測定していた従来方法の比べ、検査工程を大きく短縮できる。
また、電気抵抗異常箇所を測定検知し、その発生個所の特定が容易であるため、不良品の流失防止、客先へのトレーサビリティデータの記録保管ができる。また、製造条件へのフィードバックを行うことで品質の向上、安定化を図ることもできる。 According to the present invention, the wound length of the conductive fiber thread is measured, and the electrical resistance of the conductive fiber thread is measured continuously and with little variation without cutting the conductive fiber thread. Therefore, the inspection process can be greatly shortened compared to the conventional method of measuring electrical resistance by sampling.
In addition, since it is easy to measure and detect the location of an electrical resistance abnormality and identify the occurrence location, it is possible to prevent the loss of defective products and record and store traceability data to the customer. In addition, quality can be improved and stabilized by providing feedback to manufacturing conditions.

実施例１にかかる測定装置の概略図である。1 is a schematic diagram of a measuring device according to Example 1; FIG. 実施例１にかかる電極の概略図である。1 is a schematic diagram of an electrode according to Example 1. FIG. 櫛状に配された接触子と導電性繊維糸との接触状態を表す概略図である。FIG. 4 is a schematic diagram showing a state of contact between comb-shaped contacts and a conductive fiber thread. 比較例１にかかる電極の概略図である。4 is a schematic diagram of an electrode according to Comparative Example 1. FIG. 実施例１で測定した抵抗値のグラフである。4 is a graph of resistance values measured in Example 1. FIG. 比較例１で測定した抵抗値のグラフである。4 is a graph of resistance values measured in Comparative Example 1. FIG.

以下、本発明の実施の形態を図面を参照しつつ説明する。図１は、本実施の一実施態様を示す概略図である。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing one embodiment of the present invention.

本発明において、導電性繊維糸の走行手段としてワインダー１５が用いられる。該ワインダーにおいて、導電性繊維糸１はコーン３に巻かれた状態から引き出され、ゲートテンサー４に通される。その後、導電性繊維糸１は間隔をおいて配置された一対の電極２および２´と接触しながら走行し、綾取り用のガイド７を経て、図示しないモーターにより一定速度で回転駆動される巻取りローラー８によって巻き取られる。 In the present invention, a winder 15 is used as means for running the conductive fiber yarn. In the winder, the conductive fiber thread 1 is pulled out from being wound around the cone 3 and passed through the gate tensor 4 . After that, the conductive fiber thread 1 travels while contacting a pair of electrodes 2 and 2' arranged with a space therebetween, passes through a guide 7 for winding, and is rotated at a constant speed by a motor (not shown). Rolled up by roller 8 .

本発明でいう導電性繊維糸とは、ステンレス、銅などの金属繊維、カーボン、チタン、アルミナなどの無機繊維、あるいは該金属繊維や無機繊維とポリエステル、アラミド、ポリプロピレンなどの有機繊維との混紡糸条からなる導電性繊維糸、天然繊維糸や合成繊維糸を無電解メッキ処理及び／又は電気メッキ処理してなる金属被覆導電性繊維糸等が例示される。 The conductive fiber yarn referred to in the present invention refers to metal fibers such as stainless steel and copper, inorganic fibers such as carbon, titanium, and alumina, or blended yarns of the metal fibers or inorganic fibers and organic fibers such as polyester, aramid, and polypropylene. Conductive fiber yarns consisting of strips, metal-coated conductive fiber yarns obtained by electroless plating and/or electroplating natural fiber yarns or synthetic fiber yarns, and the like are exemplified.

ゲートテンサー４は、走行する導電性繊維糸の張力を調整するためのものであり、走行する導電性繊維糸の張力を任意に調整できるものである。また、張力調整手段は２種以上併用しても構わない。
好ましい張力の範囲は０．０５ｃＮ／ｄｔｅｘ～１ｃＮ／ｄｔｅｘである。張力の値が上記範囲を外れる場合は、導電性繊維糸と電極の接触子との接触抵抗が変化し、正確な電気抵抗が測定できなくなる虞がある。
更に、これらの張力調整手段は、上記の抵抗値測定手段とは電気的に絶縁されていることが必要である。絶縁されていない場合には、導電性繊維糸の電極間以外の部分にも電流が流れ、正確な抵抗が測定できない虞がある。 The gate tensor 4 is for adjusting the tension of the running conductive fiber thread, and can arbitrarily adjust the tension of the running conductive fiber thread. Also, two or more types of tension adjusting means may be used in combination.
A preferred tension range is 0.05 cN/dtex to 1 cN/dtex. If the tension value is out of the above range, the contact resistance between the conductive fiber thread and the contactor of the electrode may change, making it impossible to measure the electrical resistance accurately.
Furthermore, these tension adjusting means must be electrically insulated from the resistance value measuring means. If it is not insulated, there is a risk that current will flow through portions of the conductive fiber thread other than those between the electrodes, making it impossible to accurately measure resistance.

電極２および２´は、導電性繊維糸１に接触し、導電性繊維糸１の電極２および２´間の抵抗値を測定する。
また、図２は、電極の構造を示す概略図である。電極２および２´は、金属からなる接触子１３と該接触子１３を固定する台座１４からなり、接触子１３は複数の接触子１３が櫛状に並んだ構造である。
また、電極２および２´は接触子１３の部分で導電性繊維糸１と接触し、他端は抵抗計５に接続されている。
電極一本当たりの接触子１３の本数は２本以上であることが好ましく、また１０本以下であることが好ましい。この範囲であることにより、接触子と導電性繊維糸との接触部分にかかる張力を制御し易く、かつ、接触子と導電性繊維糸との十分な接触状態を保つことができ測定値が安定する。
また、その形状は、断面直径が１０ｍｍ以上の丸型棒状であることが好ましい。また、接触子同士の間隔が３ｍｍ～５ｍｍで櫛の歯状に配置することが好ましい。断面直径が１０ｍｍ未満の場合、導電性繊維糸と接触子の接触が不充分となって測定誤差が生じる虞がある。本数や形状は測定値が安定的に測定できれば特に限定されない。
接触子は金属からなるものが好ましく、接触子を構成する金属としては金、銀、銅およびそれら金属を含んだ合金等が挙げられる。
また、導電性繊維糸がその構成成分として金属繊維糸条を含む場合には、接触子の摩耗が激しくなるので、接触子表面を硬質クロムなどでメッキすることが好ましい。 The electrodes 2 and 2' are in contact with the conductive fiber thread 1 and measure the resistance value of the conductive fiber thread 1 between the electrodes 2 and 2'.
Also, FIG. 2 is a schematic diagram showing the structure of the electrode. The electrodes 2 and 2' are composed of a metal contactor 13 and a base 14 for fixing the contactor 13. The contactor 13 has a structure in which a plurality of contactors 13 are arranged in a comb shape.
Further, the electrodes 2 and 2' are in contact with the conductive fiber thread 1 at the contactor 13 portion, and the other end is connected to the resistance meter 5. As shown in FIG.
The number of contacts 13 per electrode is preferably two or more, and preferably ten or less. By being in this range, it is easy to control the tension applied to the contact portion between the contactor and the conductive fiber thread, and a sufficient contact state between the contactor and the conductive fiber thread can be maintained, resulting in a stable measurement value. do.
Moreover, it is preferable that the shape is a round bar shape with a cross-sectional diameter of 10 mm or more. Further, it is preferable that the contacts are arranged in a comb-like shape with an interval of 3 mm to 5 mm. If the cross-sectional diameter is less than 10 mm, the contact between the conductive fiber thread and the contact may be insufficient, resulting in measurement error. The number and shape are not particularly limited as long as the measured value can be stably measured.
The contact is preferably made of metal, and metals constituting the contact include gold, silver, copper, and alloys containing these metals.
Further, when the conductive fiber thread contains a metal fiber thread as a component thereof, the contactor wears rapidly, so that the surface of the contactor is preferably plated with hard chromium or the like.

また、図３は各接触子と導電性繊維糸が接する状態を示したものである。図３に示すように、導電性繊維糸を、接触子が櫛の歯状に並ぶ方向に対して、接触角αが１０度～７０度、好ましくは２０度～６０度で接触子に接触するように接触子間にジグザグ状に挿通される。走行方向に対し７０度より大きい角度で電極を配した場合、糸に大きな張力がかかり、糸切れを発生させる虞がある。一方、１０度未満の低角度で配した場合、糸と電極間の十分な接触導通が取れず正確な抵抗値を測定できない虞がある。
Also, FIG. 3 shows a state in which each contact is in contact with the conductive fiber thread. As shown in FIG. 3, the conductive fiber thread is brought into contact with the contact at a contact angle α of 10 to 70 degrees, preferably 20 to 60 degrees, with respect to the direction in which the contacts are arranged in a comb shape. It is inserted in a zigzag pattern between the contacts. If the electrodes are arranged at an angle larger than 70 degrees with respect to the running direction, a large tension is applied to the yarn, which may cause yarn breakage. On the other hand, if it is arranged at a low angle of less than 10 degrees, there is a possibility that sufficient contact conduction cannot be obtained between the yarn and the electrode, making it impossible to measure an accurate resistance value.

抵抗値測定手段は、前記一対の電極間に一定の電流を流す定電流付与手段と、前記一対の電極間の電圧値を測定する電圧測定手段とを有する。
本発明の測定装置であると、導電性繊維糸が一対の電極と接触しつつ走行し、導電性繊維糸の走行長に応じて電圧値を測定することができ、この電圧値と、流している電流の値により、導電性繊維糸の電気抵抗値を算出することができる。抵抗計としては四端子抵抗計が好ましく用いられる。 The resistance value measuring means has a constant current applying means for applying a constant current between the pair of electrodes and a voltage measuring means for measuring a voltage value between the pair of electrodes.
With the measuring device of the present invention, the conductive fiber thread runs while being in contact with the pair of electrodes, and the voltage value can be measured according to the running length of the conductive fiber thread. The electric resistance value of the conductive fiber yarn can be calculated from the current value. A four-terminal resistance meter is preferably used as the resistance meter.

電気抵抗は抵抗計により計量され、その測定間隔（サンプリング時間）Ｔは、
Ｔ≦Ｄ／Ｖ （Ｄ：電極の間隔、Ｖ：巻き取り速度）により設定される。
例えば、Ｖ＝２００ｍ／分、Ｄ＝１００ｍｍの場合、Ｔ＝３０ｍｓｅｃ以下、Ｖ＝５００ｍ／分、Ｄ＝１００ｍｍの場合、Ｔ＝１２ｍｓｅｃ以下が好ましい。
巻き取りローラーの回転数は基本的に一定であり、導電性繊維糸を巻き取るにつれて、巻き径が増大し、導電性繊維糸の巻き取り（走行）速度が増加していくため、サンプリング時間は計測される巻き取り速度に応じて経時的に設定変更されることが好ましいが、推定される巻き取り速度から一定のサンプリング時間を設定することもできる。 The electrical resistance is measured by an ohmmeter, and the measurement interval (sampling time) T is
It is set by T≦D/V (D: distance between electrodes, V: winding speed).
For example, when V=200 m/min and D=100 mm, T=30 msec or less, and when V=500 m/min and D=100 mm, T=12 msec or less is preferable.
The rotation speed of the winding roller is basically constant, and as the conductive fiber thread is wound, the winding diameter increases and the winding (running) speed of the conductive fiber thread increases, so the sampling time is Although it is preferable to change the setting over time according to the measured winding speed, it is also possible to set a constant sampling time based on the estimated winding speed.

その後、導電性繊維糸１は糸切れセンサー６に通された後、綾振り用のガイド７を通って、巻き取りローラー８に巻き取られる。 After that, the conductive fiber thread 1 is passed through a thread breakage sensor 6, passed through a guide 7 for traversing, and wound up on a winding roller 8. - 特許庁

更に、巻き取りローラー８には回転数センサー９と、変位センサー１０が設置されている。回転数センサー９は巻き取りローラー８の回転数を計測し、変位センサー１０はローラーの巻き取り直径を測定する。
巻き取り用ローラーの回転数を測定する回転数センサーとしてはレーザー式回転計、光電センサー、エンコーダなどを用いることができる。また、ローラーの変位センサーとしてはレーザー式変位計を用いて計測したデータをもとに、巻き取り長さを算出することが可能である。 Further, the take-up roller 8 is provided with a rotational speed sensor 9 and a displacement sensor 10 . A rotation speed sensor 9 measures the rotation speed of the winding roller 8 and a displacement sensor 10 measures the winding diameter of the roller.
A laser tachometer, a photoelectric sensor, an encoder, or the like can be used as a rotation speed sensor for measuring the rotation speed of the take-up roller. In addition, it is possible to calculate the winding length based on data measured using a laser displacement meter as a roller displacement sensor.

また、回転数センサー９と変位センサー１０で測定された巻き取りローラーの回転数とローラーの巻き取り直径の変位データはデータ収録装置１１に記憶される。 Further, the rotation speed of the winding roller and the displacement data of the winding diameter of the roller measured by the rotation speed sensor 9 and the displacement sensor 10 are stored in the data recording device 11 .

これらのデータを用いて、演算記録表示装置１２にて巻き取り長さ（走行長）を算出する。巻き取り長さは、例えば、下記式１により近似される。

Figure 0007299005000001
Using these data, the calculation record display device 12 calculates the winding length (running length). The winding length is approximated, for example, by Equation 1 below.

Figure 0007299005000001

巻き取り用ローラーの回転数および巻き取り用ローラーの直径のデータから、上記式から導かれる導電性繊維糸の巻き取り長さと測定した電気抵抗より、巻き取り長さに対する電気抵抗の挙動を記録することが可能となる。
本発明においては、導電性繊維糸の電気抵抗を上記の方法で測定することにより、導電性繊維糸の電気抵抗の微少な変動まで測定することができ、品質の向上が図れる。 From the data on the number of revolutions of the winding roller and the diameter of the winding roller, the winding length of the conductive fiber yarn derived from the above formula and the measured electrical resistance are used to record the behavior of the electrical resistance with respect to the winding length. becomes possible.
In the present invention, by measuring the electrical resistance of the conductive fiber yarn by the method described above, it is possible to measure even minute fluctuations in the electrical resistance of the conductive fiber yarn, thereby improving the quality.

かくして本発明によれば、導電性繊維糸の電気抵抗を測定するに際し、該導電性繊維糸を、間隔をおいて配置した一対の電極に接触させつつ走行させ、かつ該電極間に定電流を流し、該電極間を走行する導電性繊維糸間の電圧を連続的に測定することにより電気抵抗値を算出する。導電性繊維糸の全長に亘り電気抵抗の変化を測定し、同時に、導電性繊維糸の走行距離を記録することで、前記導電性繊維糸の異常電気抵抗値が測定された場合、その場所の特定を容易にすることを特徴とする導電性繊維糸の電気抵抗測定装置が提供される。 Thus, according to the present invention, when measuring the electrical resistance of a conductive fiber thread, the conductive fiber thread is run while being in contact with a pair of electrodes arranged at a distance, and a constant current is applied between the electrodes. The electric resistance value is calculated by continuously measuring the voltage between the conductive fiber yarns running between the electrodes. By measuring the change in electrical resistance over the entire length of the conductive fiber thread and recording the running distance of the conductive fiber thread at the same time, when the abnormal electrical resistance value of the conductive fiber thread is measured, the location An apparatus for measuring the electrical resistance of a conductive fiber yarn is provided that is characterized by facilitating identification.

１ 導電性繊維糸
２、２´ 電極
３ コーン
４ ゲートテンサー
５ 抵抗計
６ 糸切れセンサー
７ ガイド
８ 巻き取り手段（巻き取りローラー）
９ 回転数センサー
１０ 変位センサー
１１ データ収録装置
１２ 演算記録表示装置
１３ 接触子
１４ 台座
１５ ワインダー 1 conductive fiber thread 2, 2' electrode 3 cone 4 gate tensor 5 resistance meter 6 thread breakage sensor 7 guide 8 winding means (winding roller)
9 Rotation speed sensor 10 Displacement sensor 11 Data recording device 12 Calculation recording display device 13 Contactor 14 Base 15 Winder

〔実施例１〕
導電層が銀からなる導電性繊維糸を図１に示す電気抵抗測定装置に供給し、０．５ｇ／ｄｔｅｘの張力をかけて初期速度２００ｍ／分で走行させながら１ｍＡの定電流を印加し、その降下電圧を計量することから電気抵抗を算出、測定した。結果を図５に示す。測定値は安定し、導電性繊維糸と走行長の相関も把握しやすかった。
なお、この時の２個の電極の間隔は１００ｍｍであった。また、電極の接触子が並ぶ方向に対し、導電性繊維糸を４２度で接触子に接触するように接触子間に屈曲挿通した。また、電極と軸受を含むローラー把持装置との絶縁抵抗は１００ＭΩ以上あり、完全に絶縁されていた。尚、使用機器は下記のものを使用した。

・抵抗計 日本ナショナルインスツルメンツ株式会社製 四端子抵抗計
デジタルマルチメータデバイス ＵＳＢ－４０６５
・光電センサー 株式会社キーエンス社製
反射型光電センサー ＬＶ－Ｓ４１
・変位計 株式会社キーエンス社製
レーザー式変位センサー ＩＬ－Ｓ１００
・データ収録装置 日本ナショナルインスツルメンツ株式会社製
マルチファンクションＩ／Ｏデバイス ＵＳＢ－６３４１
・電極 櫛型電極
素材：黄銅 形状：直径 ２ｍｍ、棒状１５ｍｍ
接触子 ７本
接触子間隔 ３ｍｍ
電極間距離 １００ｍｍ
・ワインダー ＴＭＴ神津株式会社製
ＳＳＰプレシジョンワインダ [Example 1]
A conductive fiber yarn whose conductive layer is made of silver is supplied to the electrical resistance measuring device shown in FIG. The electrical resistance was calculated and measured by measuring the voltage drop. The results are shown in FIG. The measured value was stable, and it was easy to grasp the correlation between the conductive fiber thread and the running length.
The distance between the two electrodes at this time was 100 mm. In addition, the conductive fiber thread was bent between the contacts so as to contact the contacts at an angle of 42 degrees with respect to the direction in which the contacts of the electrodes were arranged. Moreover, the insulation resistance between the electrode and the roller gripping device including the bearing was 100 MΩ or more, and the electrode was completely insulated. The following devices were used.

・Resistor 4-terminal resistance meter manufactured by National Instruments Japan Co., Ltd.
Digital multimeter device USB-4065
・Photoelectric sensor Manufactured by Keyence Corporation
Reflective photoelectric sensor LV-S41
・Displacement gauge Keyence Corporation
Laser displacement sensor IL-S100
・Data recording device Manufactured by National Instruments Japan Co., Ltd.
Multi-function I/O device USB-6341
・Electrode Comb electrode
Material: Brass Shape: Diameter 2mm, Rod 15mm
7 contacts
Contact interval 3mm
Distance between electrodes 100mm
・Winder made by TMT Kozu Co., Ltd.
SSP Precision Winder

〔比較例１〕
電極を図４に変更した以外は、実施例１と同様に測定した。結果を図６に示す。測定値は不安定で、導電性繊維糸と走行長の相関も把握しにくかった。 [Comparative Example 1]
Measurement was performed in the same manner as in Example 1, except that the electrodes were changed to those shown in FIG. The results are shown in FIG. The measured value was unstable, and it was difficult to grasp the correlation between the conductive fiber thread and the running length.

Claims (4)

導電性繊維糸の電気抵抗の測定装置において、
前記導電性繊維糸を走行させる走行手段と、
前記導電性繊維糸の電気抵抗を測定する電気抵抗測定手段と、
前記導電性繊維糸の走行長を測定する走行長測定手段と、
測定された電気抵抗と走行長測定値を関連付けて演算表示する演算記録表示手段とからなり、
前記電気抵抗測定手段における間隔をおいて配置された一対の電極が櫛状に並んだ複数の接触子を有し
前記電極は前記接触子の部分で前記導電性繊維糸と接触し、
前記導電性繊維糸は、前記接触子に接触するように前記接触子間にジグザグ状に挿通されることを特徴とする測定装置。 In a device for measuring the electrical resistance of a conductive fiber yarn,
a running means for running the conductive fiber yarn;
electrical resistance measuring means for measuring the electrical resistance of the conductive fiber yarn;
a running length measuring means for measuring the running length of the conductive fiber yarn;
a calculation record display means for calculating and displaying the measured electrical resistance and the measured travel length in association with each other;
A pair of spaced apart electrodes in the electrical resistance measuring means has a plurality of contacts arranged in a comb shape.
the electrode is in contact with the conductive fiber thread at the contactor portion;
A measuring device , wherein the conductive fiber thread is inserted between the contacts in a zigzag pattern so as to contact the contacts . 走行手段が、巻き取りローラーであることを特徴とする請求項１に記載の測定装置。 2. The measuring device according to claim 1, wherein the running means is a take-up roller. 電気抵抗測定手段が、導電性繊維糸が接触する一対の電極と、定電流付与手段と、電圧測定手段と、前記定電流付与手段によって流される電流値と、電圧測定手段によって測定した電圧値に基づいて前記導電性繊維糸の抵抗値を演算する演算手段とからなることを特徴とする請求項１又は２に記載の測定装置。 The electric resistance measuring means includes a pair of electrodes with which the conductive fiber yarn is in contact, constant current applying means, voltage measuring means, the current value applied by the constant current applying means, and the voltage value measured by the voltage measuring means. 3. The measuring device according to claim 1, further comprising computing means for computing the resistance value of said conductive fiber thread based on the above. 走行長測定手段が、巻き取りローラー回転数センサーと、巻き取りローラーの直径測定用変位センサーを有することを特徴とする請求項１～３の何れか一項に記載の測定装置。 4. The measuring device according to claim 1, wherein the running length measuring means has a winding roller rotation speed sensor and a displacement sensor for measuring the diameter of the winding roller.
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