JPH10183430A - Yarn tension sensor - Google Patents
Yarn tension sensorInfo
- Publication number
- JPH10183430A JPH10183430A JP8339979A JP33997996A JPH10183430A JP H10183430 A JPH10183430 A JP H10183430A JP 8339979 A JP8339979 A JP 8339979A JP 33997996 A JP33997996 A JP 33997996A JP H10183430 A JPH10183430 A JP H10183430A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- base member
- load transmitting
- yarn
- transmitting member
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/40—Applications of tension indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/20—Sensing or detecting means using electric elements
- B65H2553/21—Variable resistances, e.g. rheostats, potentiometers or strain gauges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、歪み検出素子を用
いた糸張力検出センサに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thread tension detecting sensor using a strain detecting element.
【０００２】[0002]
【従来の技術】従来より、糸張力検出センサとして、荷
重により歪むベース部材を、歪みを検出する歪み検出素
子と、荷重検出点である糸ガイドとを備えたものが知ら
れている。2. Description of the Related Art Heretofore, as a yarn tension detecting sensor, there has been known a yarn tension detecting sensor having a base member distorted by a load, a distortion detecting element for detecting distortion, and a yarn guide as a load detecting point.
【０００３】[0003]
【発明が解決しようとする課題】この従来の糸張力検出
センサでは、測定可能な糸張力の範囲及び精度は、ベー
ス部材の機械的な性質に負うところが大きく、そのベー
ス部材の機械的性質によって、糸張力を精度良く測定で
きる範囲が限られていた。このため、測定する糸の種類
や太さが余り違わず所望の張力の測定範囲が狭い場合に
は問題はないが、測定する糸の種類や太さが大きく異な
る場合には、以下ような問題が生じる。In this conventional yarn tension detecting sensor, the measurable range and accuracy of the yarn tension largely depend on the mechanical properties of the base member. The range in which the yarn tension can be accurately measured has been limited. Therefore, there is no problem when the type and thickness of the yarn to be measured are not so different and the measurement range of the desired tension is narrow, but when the type and thickness of the yarn to be measured are greatly different, the following problems occur. Occurs.
【０００４】主に測定する糸の張力が高いために、高い
張力に対応するベース部材を使用した場合では、糸が太
いと高い精度で張力を測定できるが、糸が細いと測定値
に対する誤差が占める割合が大きくなり、あまり高くな
い精度でしか張力を測定できなかった。例えば、張力の
測定範囲が５０グラム〜２００グラムで、誤差が±６グ
ラムの張力検出センサを使用したとする。糸が太くて設
定張力が１５０グラムの場合には、設定張力に対して誤
差６グラムが占める割合は４パーセントと小さいが、逆
に糸が細くて設定張力が６０グラムの場合には、誤差が
占める割合は１０パーセントと大きくなる。[0004] Since the tension of the yarn to be measured is mainly high, when a base member corresponding to a high tension is used, the tension can be measured with high accuracy if the yarn is thick. The proportion occupied increased, and the tension could only be measured with a modest accuracy. For example, it is assumed that a measurement range of the tension is 50 g to 200 g and a tension detection sensor having an error of ± 6 g is used. When the yarn is thick and the set tension is 150 grams, the ratio of the error of 6 grams to the set tension is as small as 4%, but when the yarn is thin and the set tension is 60 grams, the error is small. The occupying ratio is as large as 10%.
【０００５】逆に、主に測定する糸の張力が低いため
に、低い張力に対応するベース部材を使用した場合で
は、糸が細いと高い精度で張力を測定できるが、糸が太
いと測定可能範囲外で張力を測定できないという可能性
がある。例えば、張力の測定可能範囲が２５グラム〜１
００グラムで、誤差が±２グラムの張力検出センサを使
用すれば、糸が太くて設定張力が１５０グラムの場合に
は測定できないということになる。この結果、通常は広
い範囲で測定できるように、高い張力に対応するベース
部材を使用するため、低い張力での測定精度が問題にな
っていた。On the contrary, when the base member corresponding to a low tension is used mainly because the tension of the yarn to be measured is low, the tension can be measured with high accuracy when the yarn is thin, but it is possible to measure when the yarn is thick. It is possible that the tension cannot be measured outside the range. For example, the measurable range of tension is 25 grams to 1
If a tension detecting sensor having an error of ± 2 gram is used for the 00 g, it cannot be measured when the yarn is thick and the set tension is 150 g. As a result, since a base member corresponding to a high tension is usually used so that measurement can be performed in a wide range, measurement accuracy at a low tension has been a problem.
【０００６】つまり、多品種少量生産が求められている
にもかかわらず、糸の太さや種類が大きく異なり、測定
する張力が大きく異なる場合に、各々の糸に応じた最適
な精度で張力を検出することが困難であった。これは、
１つのセンサで広い範囲を測定しようとすると、生じて
しまう問題である。That is, in spite of the demand for high-mix low-volume production, when the thickness and type of the yarn are greatly different and the tension to be measured is greatly different, the tension is detected with the optimum accuracy according to each yarn. It was difficult to do. this is,
This is a problem that occurs when one sensor is used to measure a wide range.
【０００７】本発明は、このような従来の技術に存在す
る問題点に着目して成されたものである。その課題は、
加工する糸の種類や太さが変わっても精度良く糸張力を
測定できる糸張力検出センサを提供することである。The present invention has been made by focusing on such problems existing in the prior art. The challenge is
An object of the present invention is to provide a yarn tension detection sensor that can accurately measure the yarn tension even if the type and thickness of the yarn to be processed change.
【０００８】[0008]
【課題を解決するための手段】上記課題を達成するため
に、請求項１に記載の発明においては、糸張力検出セン
サを、張力により歪むベース部材と、歪みを検出する歪
み検出素子とを備えた糸張力検出センサであって、ベー
ス部材が複数種設けられており、各々のベース部材に歪
み検出素子を設けることとした。According to a first aspect of the present invention, a yarn tension detecting sensor includes a base member that is distorted by tension, and a distortion detecting element that detects distortion. A plurality of base members are provided, and each of the base members is provided with a strain detecting element.
【０００９】請求項２に記載の発明では、ベース部材と
荷重検出点である糸ガイドの間に、ベース部材と直交し
て支持されている荷重伝達部材が設けられ、且つ荷重伝
達部材が所定以上の張力が掛かれば撓むよう構成され
て、ベース部材として機能することとした。又、請求項
３に記載の発明では、荷重伝達部材と平行して設けら
れ、荷重伝達部材に掛かる張力の大きさに応じて荷重伝
達部材が段階的に接触する複数の接触部位が設けること
とした。According to the second aspect of the present invention, a load transmitting member is provided between the base member and the yarn guide which is a load detection point, the load transmitting member being supported orthogonal to the base member, and the load transmitting member is at least a predetermined amount. It is configured to bend when a tension is applied, and to function as a base member. According to the third aspect of the present invention, a plurality of contact portions are provided in parallel with the load transmitting member, and the load transmitting member contacts the load transmitting member in a stepwise manner according to the magnitude of the tension applied to the load transmitting member. did.
【００１０】従って、請求項１に記載の発明では、ベー
ス部材の種類が複数種設けられていることによって、糸
張力に応じて対応するベース部材が歪み、その歪み量が
歪んでいるベース部材の歪み検出素子により検出され
る。このことによって、糸張力を精度良く検出できる範
囲を広げることができる。Therefore, according to the first aspect of the present invention, since a plurality of types of base members are provided, the corresponding base member is distorted in accordance with the yarn tension, and the distortion amount of the base member is distorted. It is detected by the distortion detecting element. As a result, the range in which the yarn tension can be accurately detected can be expanded.
【００１１】請求項２に記載の発明では、糸ガイドから
ベース部材に力を伝達する荷重伝達部材が、該ベース部
材に設けられている歪み検出素子と異なる歪み検出素子
のベース部材も兼ねる。According to the second aspect of the present invention, the load transmitting member for transmitting a force from the thread guide to the base member also serves as a base member of a strain detecting element different from the strain detecting element provided on the base member.
【００１２】請求項３に記載の発明では、接触部が複数
設けられていることにより、各接触部が荷重伝達部材及
びベース部材の撓みを制限し、荷重伝達部材とベース部
材とを、あるいは荷重伝達部材を、段階的に歪ませるこ
とができる。According to the third aspect of the present invention, since a plurality of contact portions are provided, each contact portion limits the bending of the load transmitting member and the base member, and connects the load transmitting member and the base member or the load. The transmission member can be distorted stepwise.
【００１３】[0013]
【実施の形態】糸張力検出センサ１について、図面を参
照しながら説明する。１は糸張力検出センサで、ベース
部材２と、荷重伝達部材３と、糸ガイド４とを備えてい
る。２はベース部材で、主に金属製であり荷重（糸張
力）を受けることにより歪みが生じ、生じた歪みを歪み
検出素子５により検出する。３は荷重伝達部材で、円柱
の部材であり、ベース部材２により直交方向に支持され
ている。この荷重伝達部材３には、所定の荷重範囲で歪
み量が比例するものが使用され、荷重伝達部材３自体
が、ベース部材２とは別種のベース部材となている。４
は糸ガイドで、セラミックス製の部材であり、荷重伝達
部材３に交換自在にネジ止めさるとともに、糸張力が掛
かる荷重検出点となる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A yarn tension detecting sensor 1 will be described with reference to the drawings. Reference numeral 1 denotes a yarn tension detection sensor, which includes a base member 2, a load transmitting member 3, and a yarn guide 4. Reference numeral 2 denotes a base member, which is mainly made of metal and is distorted by receiving a load (thread tension). The generated distortion is detected by a distortion detecting element 5. Reference numeral 3 denotes a load transmitting member, which is a cylindrical member, and is supported by the base member 2 in the orthogonal direction. As the load transmitting member 3, a member whose distortion amount is proportional in a predetermined load range is used, and the load transmitting member 3 itself is a base member different from the base member 2. 4
Is a thread guide, which is a member made of ceramics. The thread guide is exchangeably screwed to the load transmitting member 3 and serves as a load detection point where the thread tension is applied.
【００１４】５は歪み検出素子で、ベース部材２に設け
られており、ベース部材２の歪み量を検出して電気信号
に変換する。８も歪み検出素子で、荷重伝達部材３に設
けられ、荷重伝達部材３の撓み量を検出して電気信号に
変換する。６は保護部材で、金属製の中空の円柱であ
り、内部に段差が設けられ二重径となっていて、荷重伝
達部材３が二重径のうち小径の角である第１の接触部９
及び開口側の大径の角である開口端７（第２の接触部）
に接触して、荷重伝達部材３及びベース部材２が所定量
以上撓むのを防ぐことで、歪み検出素子５及び８の破壊
を防ぐ。第１の接触部９は、歪み検出素子５の破壊防止
のためのものである他に、後述するように、ベース部材
２と荷重伝達部材３とを段階的に歪ませるものである。Reference numeral 5 denotes a distortion detecting element which is provided on the base member 2 and detects the amount of distortion of the base member 2 and converts it into an electric signal. Reference numeral 8 denotes a strain detecting element, which is provided on the load transmitting member 3 and detects the amount of bending of the load transmitting member 3 and converts the amount into an electric signal. Reference numeral 6 denotes a protective member, which is a hollow cylindrical column made of metal, provided with a step inside and having a double diameter, and a first contact portion 9 in which the load transmitting member 3 has a smaller diameter corner of the double diameter.
And the opening end 7 (the second contact portion) which is a large-diameter corner on the opening side.
To prevent the load transmitting member 3 and the base member 2 from flexing by a predetermined amount or more, thereby preventing the strain detecting elements 5 and 8 from being destroyed. The first contact portion 9 is for preventing the strain detecting element 5 from being broken, and also for distorting the base member 2 and the load transmitting member 3 stepwise as described later.
【００１５】糸ガイド４に張力Ｆが加わると、張力Ｆは
糸ガイド４から荷重伝達部材３を経てベース部材２にへ
と伝達される。荷重伝達部材３はベース部材２に対して
片持ち梁となっているために、張力がベース部材２に伝
達されると、ベース部材２には、荷重方向と反対のモー
メントＭが働き、そのモーメントＭの大きさに応じてベ
ース部材２に歪みが生じる。ベース部材２に生じた歪み
により、歪み検出素子５が歪み、歪み検出素子５が歪む
ことにより検出された歪み量は、電気信号に変換されて
図示省略しているＣＰＵに送られ、張力値に交換処理さ
れる。When a tension F is applied to the thread guide 4, the tension F is transmitted from the thread guide 4 to the base member 2 via the load transmitting member 3. Since the load transmitting member 3 is a cantilever with respect to the base member 2, when tension is transmitted to the base member 2, a moment M opposite to the load direction acts on the base member 2, and the moment M Distortion occurs in the base member 2 according to the size of M. The strain detected in the strain detecting element 5 is distorted by the strain generated in the base member 2, and the amount of strain detected by distorting the strain detecting element 5 is converted into an electric signal, sent to a CPU (not shown), and converted into a tension value. Exchanged.
【００１６】糸ガイド４に過度の張力が加わっても、荷
重伝達部材３が保護部材６の接触部７に接触することに
より、ベース部材２が所定量以上に歪まなくなる。この
ため保護部材６の接触部７の径の大きさを、歪み検出素
子５が断線しない大きさに設定することで、歪み検出素
子５を破壊から保護するようになっている。Even if an excessive tension is applied to the thread guide 4, the load transmitting member 3 comes into contact with the contact portion 7 of the protective member 6, so that the base member 2 is not distorted by a predetermined amount or more. For this reason, by setting the size of the diameter of the contact portion 7 of the protection member 6 to a size that does not break the strain detecting element 5, the strain detecting element 5 is protected from destruction.
【００１７】又、歪み検出素子５の保護は、保護部材６
の内径の大きさの調整でのみ可能となるわけではなく、
保護部材６に接触部７を設ける位置を調整することによ
っても可能である。The protection of the distortion detecting element 5 is performed by a protection member 6.
It is not possible only by adjusting the size of the inner diameter of
It is also possible by adjusting the position where the contact portion 7 is provided on the protection member 6.
【００１８】測定する糸が細い糸から太い糸に変わった
場合等、低張力範囲の測定から高張力範囲の測定を行う
場合について以下に述べる。本実施の形態の糸量力検出
センサ１では、強い糸張力が加わった場合に、荷重伝達
部材３が撓み接触部９に接触する。更に、荷重伝達部材
３は、接触部９を支点として、支点より先だけが撓むよ
うになっている。この支点より先の撓みを利用して、歪
み検出素子５以外の歪み検出素子８により張力を測定す
るようになっている。このため、歪み検出素子８は、荷
重伝達部材３に接触部９と接触する位置と糸ガイド４と
の略中間に設けられている。糸ガイド４に所定以上の糸
張力が掛かると、荷重伝達部材３の接触部９と接触する
位置（支点）より先には、荷重方向と同じ方向にモーメ
ントｍが掛かる。このモーメントｍにより生じた撓みに
よる歪みを、歪み検出素子８で検知し、電気信号に変換
することにより、太い糸の張力（高い張力）を測定する
ことができる。つまり、歪み検出素子５で検知する弱い
張力のみならず、歪み検出素子８で検知する強い張力も
測定することができ、広範囲の張力測定が可能となる。
又、本実施の形態では、荷重伝達部材３をベース部材と
しても利用しているため、別途のベース部材を設ける必
要がない。A case in which the measurement in the low tension range to the measurement in the high tension range, such as when the yarn to be measured changes from a thin yarn to a thick yarn, will be described below. In the yarn quantity force detection sensor 1 according to the present embodiment, when a strong yarn tension is applied, the load transmitting member 3 comes into contact with the bending contact portion 9. Further, the load transmitting member 3 is configured so that only the fulcrum is bent with the contact portion 9 as a fulcrum. Tension is measured by the strain detecting elements 8 other than the strain detecting element 5 by using the deflection before the fulcrum. For this reason, the strain detecting element 8 is provided substantially at a position between the position where the load transmitting member 3 comes into contact with the contact portion 9 and the yarn guide 4. When a predetermined or more yarn tension is applied to the yarn guide 4, a moment m is applied in the same direction as the load direction before a position (fulcrum) where the yarn guide 4 comes into contact with the contact portion 9 of the load transmitting member 3. The strain due to the bending caused by the moment m is detected by the strain detecting element 8 and converted into an electric signal, whereby the tension (high tension) of the thick thread can be measured. That is, not only the weak tension detected by the strain detection element 5 but also the strong tension detected by the strain detection element 8 can be measured, and a wide range of tension measurement can be performed.
In the present embodiment, since the load transmitting member 3 is also used as a base member, it is not necessary to provide a separate base member.
【００１９】歪み検出素子は歪み量により力を検出する
ため、歪み検出素子を設けるベース部材の機械的性質に
より測定可能範囲及び精度が変わる。言い換えると測定
可能範囲に応じてベース部材の材質を選択すると、所望
の測定可能範囲で所望の精度の張力の測定が行えるよう
になる。そのためには、ベース部材２の材質を、低い張
力を正確に測定できるように、肉厚が薄くても適度な耐
久力がある材料、例えばステンレスやステンレスを加工
したホーロー金属板等にする。そして、荷重伝達部材３
の材質を、高い張力を正確に測定できるように、肉厚が
厚くてもベース部材２を荷重伝達部材３の自重により歪
まない程軽くて、強度のある材料、例えばアルミ合金や
繊維強化プラスチック等にする。上述したような材料
を、ベース部材２と、荷重伝達部材３に用いると、肉厚
等の調整により太い糸でも細い糸でも、各々の糸の太さ
や種類に応じた適正な精度の測定が行える。Since the strain detecting element detects a force based on the amount of strain, the measurable range and accuracy vary depending on the mechanical properties of the base member on which the strain detecting element is provided. In other words, if the material of the base member is selected according to the measurable range, the tension can be measured with a desired accuracy in a desired measurable range. To this end, the material of the base member 2 is made of a material having an appropriate durability even though it is thin, such as stainless steel or a hollow metal plate processed from stainless steel, so that low tension can be accurately measured. And the load transmitting member 3
The material of the base member 2 is so light that the base member 2 is not distorted by the weight of the load transmitting member 3 even if the wall thickness is large, so that high tension can be accurately measured. To When the above-mentioned materials are used for the base member 2 and the load transmitting member 3, appropriate accuracy can be measured according to the thickness and type of each of the thick and thin yarns by adjusting the thickness and the like. .
【００２０】もっとも、荷重伝達部材３の材質が柔らか
すぎると、荷重伝達部材３が撓むことにより力を吸収し
てベース部材２に適切な力が加わらないことになる。逆
に硬すぎると撓みがなく、張力が大きい場合の測定がで
きない。このため、所望の張力の測定可能範囲に応じ
て、厚さや材質等を十分に考慮する必要がある。However, if the material of the load transmitting member 3 is too soft, the load transmitting member 3 bends and absorbs the force, so that an appropriate force is not applied to the base member 2. Conversely, if it is too hard, there is no deflection, and measurement cannot be performed when the tension is large. For this reason, it is necessary to sufficiently consider the thickness, the material, and the like according to the measurable range of the desired tension.
【００２１】ベース部材２と荷重伝達部材３の材質や肉
厚の組み合わせにより、連続した測定可能範囲にするこ
とも可能ではあるが、ベース部材２が歪むと同時に荷重
伝達部材３も撓む可能性が強く、荷重伝達部材３により
力が吸収されていることになり、測定精度の観点からあ
まり好ましくない。従って、段階的な測定可能範囲とす
ることが好ましい。The combination of the materials and thicknesses of the base member 2 and the load transmitting member 3 makes it possible to make the measurement range continuous, but it is possible that the base member 2 is distorted and the load transmitting member 3 is simultaneously bent. And the force is absorbed by the load transmitting member 3, which is not preferable from the viewpoint of measurement accuracy. Therefore, it is preferable to set a stepwise measurable range.
【００２２】なお、この発明は以下のようにして具体化
しても良い。 （１）本発明の実施の形態では、荷重伝達部材３の肉厚
や径の太さを変化させて、所定以上の張力が加わった場
合に接触部７から糸ガイド４にかけて撓みやすくしても
良い。又、径の太さを変えずに１本の円柱の間で材質等
を変えて撓みやすくしても良い。逆に、撓みにくくして
撓み量が変わるようにしても良い。そして、１本の荷重
伝達部材３で部位により撓み量が変わるようにして、各
部位ごとに歪み検出素子を設け、糸張力の測定可能範囲
を段階的に増やすようにしても良い。The present invention may be embodied as follows. (1) In the embodiment of the present invention, the thickness or diameter of the load transmitting member 3 is changed so that the load transmitting member 3 can easily bend from the contact portion 7 to the thread guide 4 when a predetermined tension or more is applied. good. Further, the material and the like may be changed between one cylinder without changing the thickness of the diameter so as to be easily bent. Conversely, the amount of bending may be changed by making the bending difficult. The amount of deflection may be changed depending on the position of one load transmitting member 3, and a strain detecting element may be provided for each position to increase the measurable range of the yarn tension in a stepwise manner.
【００２３】（２）又、荷重方向が一定の場合は、荷重
伝達部材３を保護部材６の中に入れるのではなく、中実
の四角柱等で荷重により撓んだ荷重伝達部材３を支える
ようにして、一定量以上撓まなくしても良い。(2) If the load direction is constant, the load transmitting member 3 is not inserted into the protective member 6 but is supported by the solid rectangular column or the like to bend the load transmitting member 3. In this way, it is not necessary to bend a certain amount or more.
【００２４】（３）ベース部材２、荷重伝達部材３以外
にベース部材として利用可能な部材は、保護部材６を支
持している本体フレーム１０が考えられる。もし、強い
張力が働くと、荷重伝達部材３が接触して保護部材６に
荷重が掛かる。すると、荷重伝達部材３を支持している
ベース部材２同様、保護部材６を片持ち支持している本
体フレーム１０の保護部材６支持付近には歪みが生じ
る。この歪みを利用して、歪み検出素子を設け、高い糸
張力を測定すれば良い。もちろん、本体フレーム１０が
硬すぎると歪まないので、特に保護部材６を支持してい
る付近の材質や厚さ等を考慮する必要がある。(3) As a member that can be used as a base member other than the base member 2 and the load transmitting member 3, a main body frame 10 that supports the protection member 6 is considered. If a strong tension is applied, the load transmitting member 3 comes into contact and a load is applied to the protective member 6. Then, similarly to the base member 2 supporting the load transmitting member 3, distortion occurs near the support of the protective member 6 of the main body frame 10 that cantileverly supports the protective member 6. By utilizing this distortion, a distortion detecting element may be provided to measure a high thread tension. Of course, if the main body frame 10 is too hard, the main body frame 10 will not be distorted. Therefore, it is necessary to consider the material, thickness, and the like in the vicinity of supporting the protection member 6.
【００２５】[0025]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is configured as described above, it has the following effects.
【００２６】請求項１に記載の発明によれば、所望の糸
張力の測定可能範囲に合わせたベース部材及び歪み検出
素子を複数種持つことにより、糸張力に応じて対応する
ベース部材及び歪み検出素子が働くため、糸の種類や太
さ等の条件が大きく異なっても最適な精度で測定するこ
とができる。According to the first aspect of the present invention, the base member and the strain detecting element corresponding to the yarn tension are provided by providing a plurality of types of base members and strain detecting elements corresponding to a desired yarn tension measurable range. Since the element works, measurement can be performed with optimal accuracy even when conditions such as the type and thickness of the yarn greatly differ.
【００２７】請求項２に記載の発明によれば、荷重伝達
部材がベース部材として機能するため、別途ベース部材
を設ける必要がない。According to the second aspect of the present invention, since the load transmitting member functions as the base member, there is no need to separately provide a base member.
【００２８】請求項３に記載の発明によれば、複数の接
触部を設けることにより、荷重伝達部材の撓み量が段階
的に規制され、ベース部材及び荷重伝達部材を段階的に
歪ませることができるとともに、ベース部材と荷重伝達
部材との歪み量を規制でき、ベース部材及び荷重伝達部
材にそれぞれ設けられた歪み検出素子が破壊するのを保
護する。According to the third aspect of the present invention, by providing a plurality of contact portions, the amount of deflection of the load transmitting member is regulated stepwise, and the base member and the load transmitting member can be distorted stepwise. In addition to this, the amount of distortion between the base member and the load transmitting member can be regulated, thereby protecting the strain detecting elements provided on the base member and the load transmitting member from being broken.
【図１】本発明の実施の形態の要部断面図である。FIG. 1 is a sectional view of a main part of an embodiment of the present invention.
【図２】本発明の実施の形態の作動時の要部断面図であ
る。FIG. 2 is a sectional view of a main part during operation of the embodiment of the present invention.
１ 糸張力検出センサ ２ ベース部材 ３ 荷重伝達部材 ４ 糸ガイド（荷重検出点） ５ 歪み検出素子 ８ 歪み検出素子 ９ 接触部 DESCRIPTION OF SYMBOLS 1 Thread tension detection sensor 2 Base member 3 Load transmission member 4 Thread guide (load detection point) 5 Strain detection element 8 Strain detection element 9 Contact part
Claims (3)
出する歪み検出素子とを備えた糸張力検出センサであっ
て、ベース部材が複数種設けられており、各々のベース
部材に歪み検出素子が設けられた糸張力検出センサ。1. A thread tension detection sensor including a base member that is distorted by tension and a distortion detection element that detects distortion, wherein a plurality of types of base members are provided, and each of the base members has a distortion detection element. Thread tension detection sensor provided.
の間に、ベース部材と直交して支持されている荷重伝達
部材が設けられ、且つ荷重伝達部材が所定以上の張力が
掛かれば撓むよう構成されて、ベース部材として機能す
る請求項１記載の糸張力検出センサ。2. A load transmitting member supported orthogonally to the base member is provided between the base member and a yarn guide serving as a load detection point, and the load transmitting member bends when a predetermined tension or more is applied. The yarn tension detection sensor according to claim 1, which is configured and functions as a base member.
伝達部材に掛かる張力の大きさに応じて荷重伝達部材が
段階的に接触する複数の接触部位が設けられた請求項１
又は請求項２に記載の糸張力検出センサ。3. A plurality of contact portions which are provided in parallel with the load transmitting member and in which the load transmitting member comes into contact stepwise according to the magnitude of tension applied to the load transmitting member.
Alternatively, the yarn tension detection sensor according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8339979A JPH10183430A (en) | 1996-12-19 | 1996-12-19 | Yarn tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8339979A JPH10183430A (en) | 1996-12-19 | 1996-12-19 | Yarn tension sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10183430A true JPH10183430A (en) | 1998-07-14 |
Family
ID=18332587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8339979A Pending JPH10183430A (en) | 1996-12-19 | 1996-12-19 | Yarn tension sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10183430A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817136A (en) * | 2012-08-01 | 2012-12-12 | 太仓市天翔化纤有限公司 | Tension adjusting device for chemical fiber silk |
| CN105908296A (en) * | 2016-06-21 | 2016-08-31 | 天津工业大学 | Yarn tension real-time measurement device |
-
1996
- 1996-12-19 JP JP8339979A patent/JPH10183430A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817136A (en) * | 2012-08-01 | 2012-12-12 | 太仓市天翔化纤有限公司 | Tension adjusting device for chemical fiber silk |
| CN105908296A (en) * | 2016-06-21 | 2016-08-31 | 天津工业大学 | Yarn tension real-time measurement device |
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