JPH07117927A - Thread breakage detecting method and device thereof - Google Patents
Thread breakage detecting method and device thereofInfo
- Publication number
- JPH07117927A JPH07117927A JP27057993A JP27057993A JPH07117927A JP H07117927 A JPH07117927 A JP H07117927A JP 27057993 A JP27057993 A JP 27057993A JP 27057993 A JP27057993 A JP 27057993A JP H07117927 A JPH07117927 A JP H07117927A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- ccd camera
- thread
- signal
- yarn breakage
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、多数の糸を送出しなが
ら各処理を施してゆく経編機・織機・整経機等における
糸切れを検出する糸切れ検出方法とその装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn breakage detecting method and device for detecting yarn breakage in a warp knitting machine, a loom, a warper, or the like, which carries out various processes while feeding a large number of yarns. is there.
【０００２】[0002]
【従来の技術】周知のとおり、経編機・織機・整経機等
においては、多数の経糸を送出しながら、これに所定の
操作（例えば、編成・製織・巻取・サイジングなど）を
施してゆくのであるが、これらの装置にあっては、多数
の経糸のうち一本でも切断したとき、直ちに検出して作
動を停止させなければ、製品に不良を生ぜしめることに
なる。したがって検出装置には、見逃しや誤認なく確実
に糸切れを検出する検出確実性、及び糸切れ発生から作
動停止までの応答時間の短縮が要求される。As is well known, in a warp knitting machine, a loom, a warper, etc., a large number of warp yarns are sent out and subjected to a predetermined operation (for example, knitting, weaving, winding, sizing, etc.). However, in these devices, if even one of a large number of warp yarns is cut, if it is not immediately detected and operation is stopped, a product will be defective. Therefore, the detection device is required to have a certainty in detecting a yarn breakage without failing to make a miss or a mistake, and to shorten a response time from the occurrence of the yarn breakage to the stop of the operation.
【０００３】従来の経編機や織機においては、糸切れ時
に自重落下するドロッパーを経糸の一本一本に取り付け
たドロッパー式糸切れ検出フィーラの他、応答性の面で
有利な光電式経糸フィーラを用いることが普通であっ
た。この光電式経糸フィーラは多数の経糸が整列して成
る整列糸を幅方向に挟んで、両側に投・受光器を対設し
て、何れかの糸が切れ、その切断糸が受光器の受光を遮
ったときに異常信号を発するというものである。多数の
経糸を常時一括して探知するので糸切れの応答性に優れ
ているのであるが、切断糸を検知する方式であったた
め、風綿、その他の飛来物などの影響や、耳糸のだぶり
等で誤動作を起こすことも多く、また切断糸が他の整列
糸に絡んだりスパンデックス等の伸縮糸の場合には、も
はや糸切れが検出できなくなるなど、検出確実性の面で
難点があった。In conventional warp knitting machines and looms, a dropper type yarn breakage detection feeler in which a dropper that falls by its own weight at the time of yarn breakage is attached to each warp yarn, and a photoelectric warp feeler advantageous in terms of responsiveness It was common to use. This photoelectric warp feeler has a large number of warp yarns aligned in the width direction and has a light emitter / receiver on both sides, which cuts one of the yarns and the cut yarn is received by the light receiver. An abnormal signal is emitted when the light is blocked. Since many warps are detected all at once all at once, it is excellent in response to yarn breakage, but since it is a method that detects cutting yarn, it is affected by flies, other flying objects, and selvage However, when the cutting yarn is entangled with other aligned yarn or when the yarn is a stretchable yarn such as spandex, it is no longer possible to detect the yarn breakage, which is a problem in terms of detection reliability.
【０００４】このようなことから、最近では、糸切れを
誤認なく確実に検出する装置として投・受光器を、整列
糸または生地の幅方向に走査せしめて、糸を一本ずつ認
知してゆくことにより糸切れの有無を調べる光電走査式
検出装置が提案されている。しかしながら、これまでに
提案された光電走査式検出装置は、経糸を幅方向に一本
一本計数していく方式であるため、整列糸幅方向の走査
に随分と時間を要し、糸切れ発生から糸切れ検出までに
は大きな時間差を生じることになった。つまり検出確実
性は向上したものの、即応性の面で満足できるものでは
なかった。最近の経編機・製織機の高速化には目覚まし
いものがあり、しかも例えばトリコット業界等において
は、使用原糸や組織等が複雑で頗る高価な生地も製され
ている。糸切れによる不良反をできる限り少なくするに
は、この検出応答性の向上が重要になってくるのであ
る。For this reason, recently, as a device for surely detecting yarn breakage without misidentification, a light emitting / receiving device is scanned in the width direction of the aligned yarn or the fabric to recognize the yarns one by one. Therefore, a photoelectric scanning detection device for checking the presence or absence of yarn breakage has been proposed. However, the photoelectric scanning type detectors proposed so far are a method of counting the warp yarns one by one in the width direction, so that it takes a long time to scan the aligned yarn width direction, and the yarn breakage occurs. There was a large time lag from the detection of thread breakage. In other words, although the detection certainty was improved, it was not satisfactory in terms of responsiveness. Recently, the speeding up of warp knitting machines and weaving machines has been remarkable, and moreover, for example, in the tricot industry and the like, expensive fabrics having complicated raw yarns, textures and the like have been produced. This improvement in detection response becomes important in order to minimize defective warping due to yarn breakage.
【０００５】[0005]
【解決すべき技術的課題】本発明は、多数の経糸を操作
する経編機・織機・整経機における従来の糸切れ検出技
術に前述の如き欠点があったのに鑑みて為されたもので
あり、風綿等の影響で誤動作を起こしたりすることがな
く、しかも糸切れ発生を直ちに検出する、糸切れ検出確
実性と糸切れ検出即応性とを両立する糸切れ検出方法と
その装置を提供することを技術的課題とするものであ
る。The present invention has been made in view of the above-mentioned drawbacks of the conventional yarn breakage detection technology in a warp knitting machine / loom machine / warping machine that operates a large number of warp threads. Therefore, a yarn breakage detection method and its device that both detect the occurrence of a yarn breakage and detect a yarn breakage promptly and immediately respond to the occurrence of a yarn breakage without causing a malfunction due to the influence of a cotton fly or the like. It is a technical issue to provide.
【０００６】[0006]
【課題解決のために採用した手段】本発明は、多数の糸
が平行または斜行状態に並列して成る糸列に対し幅方向
に配設されたレールに沿って往復走行するキャリヤー
と；前記キャリヤーに設置され、糸列Ｓ所要範囲を撮像
する、多数の電荷結合素子を面状に配列して成るＣＣＤ
カメラと；同キャリヤーに設置され、ＣＣＤカメラの撮
像範囲における糸列を照明する光源と；前記ＣＣＤカメ
ラの撮像範囲における糸列の糸切れのない状態に対応す
る値を入力設定することによりシキイ値信号を出力する
設定器と；前記ＣＣＤカメラが出力する撮像範囲の撮像
信号を素子毎に二値化処理し、得られた二値信号〔１と
０〕の比を糸現在値信号として計算して、この糸現在値
信号と、前記設定器が出力するシキイ値信号とを比較し
て両者が一致しないときに異常信号を出力する比較制御
器と；を用いて糸切れ検出器を構成するという技術的手
段を採用することにより上記課題を解決したのである。SUMMARY OF THE INVENTION The present invention relates to a carrier which reciprocates along rails arranged in the width direction with respect to a yarn row in which a large number of yarns are arranged in parallel or in a skewed state. A CCD which is installed on a carrier and which images a required area of the yarn row S and which is composed of a large number of charge-coupled devices arranged in a plane
A camera; a light source installed on the same carrier for illuminating a yarn row in the image pickup range of the CCD camera; and a value corresponding to a state in which there is no thread breakage of the yarn row in the image pickup range of the CCD camera A setting device for outputting a signal; binarizing the image pickup signal of the image pickup range output by the CCD camera for each element, and calculating the ratio of the obtained binary signals [1 and 0] as the yarn current value signal The yarn breakage detector is constructed by using the yarn present value signal and the comparison value controller that compares the current value signal output from the setting device and outputs an abnormal signal when they do not match. The above problems have been solved by adopting technical means.
【０００７】[0007]
【実施例】以下、添付図面に示す実施例に基づいて本発
明を説明する。なお、図１は本発明実施例装置の駆動機
構を説明する概略側面図、図２は同装置の駆動機構を説
明する概略正面図、図３は同装置におけるブロック線
図、図４および図５は同装置のＣＣＤカメラの撮像範囲
を示す概略説明図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the accompanying drawings. 1 is a schematic side view illustrating a drive mechanism of the device of the present invention, FIG. 2 is a schematic front view illustrating a drive mechanism of the device, FIG. 3 is a block diagram of the device, and FIGS. FIG. 3 is a schematic explanatory view showing an imaging range of a CCD camera of the same device.
【０００８】図１および図２に示すように、本実施例
は、本発明に係る糸切れ検出装置を経編機に適用したも
のであり、糸切れの検出を、経編機における編目を形成
する編針Ｎと各糸をコントロールするガイドＧとの間の
糸列Ｓに対して行うように構成してある。図中符号Ａで
指示するアームを介してキャリヤーＣに固定されたＣＣ
Ｄカメラ１が、糸列Ｓの幅方向に往復移動しながら、糸
列Ｓを所定範囲ずつ撮像し、この撮像範囲毎に糸切れを
探知していくのである（図４参照）。As shown in FIGS. 1 and 2, the present embodiment applies the yarn breakage detecting device according to the present invention to a warp knitting machine, and detects the yarn breakage to form a stitch in the warp knitting machine. The yarn row S between the knitting needle N and the guide G that controls each yarn is performed. CC fixed to the carrier C via the arm indicated by the symbol A in the figure
While the D camera 1 reciprocates in the width direction of the thread train S, the D camera 1 images the thread train S in predetermined ranges, and detects a yarn break for each imaging range (see FIG. 4).
【０００９】ＣＣＤカメラ１を設置したキャリヤーＣ
は、糸列Ｓの幅方向に横架された２本のレールＲ・Ｒに
沿って、モータ５によりタイミングベルトＢを介して駆
動されることにより往復走行を行う。キャリヤーＣが往
復走行することによってＣＣＤカメラ１が糸列Ｓをその
幅方向に走査するのである。キャリヤーＣにはまた、糸
列Ｓを照明するための光源Ｌが搭載されている。本実施
例では、ハロゲンランプＬの発する光線を、光ファイバ
ー束Ｌ1 を介してＣＣＤカメラ１まで導くようにし、同
カメラのレンズ部の周囲に前記光ファイバー束Ｌ1 の発
光端をリング状に配設することによって、糸列Ｓを一様
に照明するようにしている。また、図中、符号Ｆで指示
するものは、キャリヤー１の移動に対応した屈曲運動を
行う周知のフレキシブルケーブルダクトであり、このフ
レキシブルケーブルダクトＦを通してハロゲンランプＬ
用の電源線やＣＣＤカメラ１の信号線等をひいてある。Carrier C with CCD camera 1 installed
Runs reciprocally by being driven by the motor 5 via the timing belt B along the two rails RR horizontally extending in the width direction of the yarn row S. The CCD camera 1 scans the yarn row S in the width direction as the carrier C travels back and forth. The carrier C is also equipped with a light source L for illuminating the yarn row S. In this embodiment, arranged rays emitted from the halogen lamp L, so as to guide to the CCD camera 1 via the optical fiber bundle L 1, the light-emitting end of the optical fiber bundle L 1 in a ring around the lens portion of the camera By doing so, the yarn row S is uniformly illuminated. Further, in the figure, what is indicated by the reference sign F is a well-known flexible cable duct that performs a bending motion corresponding to the movement of the carrier 1, and the halogen lamp L is passed through this flexible cable duct F.
A power supply line for use, a signal line of the CCD camera 1 and the like are drawn.
【００１０】図３は、本実施例装置のブロック図であ
る。多数の電荷結合素子を面状に配列して成るＣＣＤカ
メラ１が、編針Ｎ−ガイドＧ間の所要範囲の糸列Ｓを撮
像し（図４、図５参照）、その撮像信号を比較制御器３
へ出力する。撮像信号を受けた比較制御器３は、まず、
この撮像信号を素子毎に二値信号〔１と０〕に二値化処
理し、この二値信号〔１と０〕の比を糸現在値として計
算する。そしてこの糸現在値と、撮像範囲の糸切れのな
い状態に対応する正常値とを比較するのである。即ち、
本発明装置にあっては、従来のように経糸を一本ずつ計
数するのではなく撮像範囲内の二値信号〔１と０〕の比
の変化を捉えることによって、撮像範囲内の糸切れを一
括して探知しているのである。一括して探知していくた
め、ＣＣＤカメラ１が糸列全幅を走査するのに要する時
間を格段に短縮することが可能となり、糸切れ検出即応
性が頗る向上するのである。FIG. 3 is a block diagram of the apparatus of this embodiment. A CCD camera 1 formed by arranging a large number of charge-coupled devices in a plane image a yarn row S in a required range between a knitting needle N and a guide G (see FIGS. 4 and 5), and compares the image pickup signal with a comparison controller. Three
Output to. The comparison controller 3 receiving the image pickup signal first
This image pickup signal is binarized into binary signals [1 and 0] for each element, and the ratio of the binary signals [1 and 0] is calculated as the yarn current value. Then, the present yarn value is compared with a normal value corresponding to a state where there is no yarn break in the imaging range. That is,
In the device of the present invention, thread breakage within the imaging range is detected by capturing the change in the ratio of the binary signals [1 and 0] within the imaging range, instead of counting the warps one by one as in the conventional case. We are detecting all at once. Since the detection is performed collectively, the time required for the CCD camera 1 to scan the entire width of the yarn row can be significantly reduced, and the yarn breakage detection responsiveness is greatly improved.
【００１１】撮像範囲の二値信号〔１と０〕の比の正常
値は、図中符号２で指示する設定器からシキイ値信号と
して比較制御器３に入力される。比較制御器３は、この
シキイ値と計算した糸現在値とを比較して両者が一致し
ないときに、経編機モータＭおよびカメラ制御器４へ異
常信号を発する。図５は経糸一本が切断している状態を
示している。この状態において、経糸が存在する部分
（図では黒線の部分）と経糸が存在しない部分（図では
白地の部分）との比率は、図４に示す正常時の場合と異
なってくる。経糸が存在しない部分（図では白地の部
分）の比率は、図５の方が図４よりも大きくなるのであ
る。このような撮像範囲内の比率を比較することにより
糸切れ検出を一括して行うのである。なお、糸切れの判
断を行う撮像範囲は、糸列Ｓの種類等に応じて設定器２
により任意に設定することができる。The normal value of the ratio of the binary signals [1 and 0] in the imaging range is input to the comparison controller 3 as a squeeze value signal from the setting device indicated by reference numeral 2 in the figure. The comparison controller 3 compares the shiki value with the calculated yarn current value, and when the two do not match, issues an abnormal signal to the warp knitting machine motor M and the camera controller 4. FIG. 5 shows a state in which one warp is cut. In this state, the ratio of the part where the warp is present (black line part in the figure) and the part where the warp is not present (white part in the figure) is different from that in the normal case shown in FIG. The ratio of the portion where the warp does not exist (white portion in the figure) is larger in FIG. 5 than in FIG. The yarn breakage detection is collectively performed by comparing the ratios within the imaging range. The imaging range for determining the thread breakage is set by the setting device 2 according to the type of the thread row S and the like.
Can be set arbitrarily.
【００１２】比較制御器３から異常信号を受けた経編機
モータＭは、直ちに作動を停止し、一方、異常信号を受
けたカメラ制御器４はキャリヤーＣを駆動する前記モー
タ５へ停止信号を出力する。このカメラ制御器４は通
常、経編機から同調信号を受けながら経編機の編成サイ
クルと同調して、ＣＣＤカメラ１の撮像タイミングおよ
び前記モータ５の駆動を制御する。本実施例では、経編
機の編針Ｎ−ガイドＧ間において糸切れ検出を行うよう
に構成しているので、編針ＮとガイドＧとがある程度開
口した、編成サイクルの特定の瞬間に糸列Ｓを撮像しな
ければならない。このため、カメラ制御器４が経編機の
同調信号を基にＣＣＤカメラ１の撮像タイミングを制御
する構成にしているのである。編成サイクルのどの瞬間
に撮像するかは、任意に設定することが可能であるが、
糸切れ検出の確度を高めるために、撮像範囲を大きく取
りたい場合等には、編成サイクルのうちの編針Ｎとガイ
ドＧとが最大限に開口する瞬間に設定すれば良い。The warp knitting machine motor M receiving the abnormal signal from the comparison controller 3 immediately stops its operation, while the camera controller 4 receiving the abnormal signal sends a stop signal to the motor 5 for driving the carrier C. Output. The camera controller 4 normally receives the tuning signal from the warp knitting machine and synchronizes with the knitting cycle of the warp knitting machine to control the image pickup timing of the CCD camera 1 and the drive of the motor 5. In this embodiment, the yarn breakage is detected between the knitting needle N and the guide G of the warp knitting machine, so that the yarn row S is opened at a certain moment of the knitting cycle when the knitting needle N and the guide G are opened to some extent. Must be imaged. Therefore, the camera controller 4 is configured to control the image pickup timing of the CCD camera 1 based on the tuning signal of the warp knitting machine. It is possible to arbitrarily set at which moment in the knitting cycle the image is taken,
In order to increase the accuracy of yarn breakage detection, if a large imaging range is desired, it may be set at the moment when the knitting needle N and the guide G are fully opened in the knitting cycle.
【００１３】本発明実施例は、以上のように構成されて
いるが、本発明はこの実施例に限定されるものではなく
「特許請求の範囲」の記載内で種々の変更が可能であ
り、例えば、本実施例装置にあっては、糸切れ発生率が
特に高く、且つ繊度・組織に関係なく一定張力がかかり
経糸が切断したときには必ず抜け空間ができる、編針−
ガイド間にて、糸切れ検出を行うように構成することに
よって、糸切れ検出即応性をさらに高めて糸切れによる
不良反を可能な限り少なくするようにしているのである
が、本発明装置を、例えば、経編機のガイドとテンショ
ンバーとの間や、整経機のテンションバーとビームとの
間などの、多数の糸が平行状態に整列して成る整列糸部
分に設置するようにしても良い。この場合、ＣＣＤカメ
ラ１の撮像タイミングを、経編機や整経機の動作と同調
させながら制御する必要がないので本発明装置の構成は
より簡単になる。The embodiment of the present invention is constructed as described above, but the present invention is not limited to this embodiment, and various modifications can be made within the scope of the claims. For example, in the device of this embodiment, the occurrence rate of yarn breakage is particularly high, and a constant tension is applied irrespective of the fineness and structure, and when the warp yarn is cut, an empty space is surely formed.
By configuring the yarn breakage detection between the guides, the yarn breakage detection responsiveness is further enhanced to minimize defective warpage due to yarn breakage. For example, the warp knitting machine may be installed at an aligned yarn portion such as between a guide and a tension bar or between a warp knitting machine tension bar and a beam, in which a large number of yarns are aligned in parallel. good. In this case, since it is not necessary to control the image pickup timing of the CCD camera 1 in synchronization with the operation of the warp knitting machine or the warping machine, the configuration of the device of the present invention becomes simpler.
【００１４】[0014]
【本発明の効果】以上、実施例をもって説明したとお
り、本発明装置にあっては、多数の糸から成る糸列の糸
切れを、ＣＣＤカメラを糸列幅方向に走査させながら、
所要範囲を一括して検出するようにしているので、糸を
一本一本計数していく従来の装置に比べ、糸列全幅の走
査に要する時間を格段に短縮することが可能となり、し
たがって糸切れ検出の即応性が大幅に向上する。As described above with reference to the embodiments, in the device of the present invention, the CCD camera is scanned in the width direction of the thread row for thread breakage of the thread row composed of a large number of threads.
Since the required range is detected all at once, the time required to scan the entire width of the yarn row can be significantly reduced compared to the conventional device that counts the yarns one by one. The responsiveness of break detection is greatly improved.
【００１５】また、糸切れの検出を、糸切れ発生率の高
い経編機における編針とガイドとの間で行うようにすれ
ば、糸切れ検出即応性をさらに向上させることができる
と共に、多数の糸が平行状態に整列した整列部分通過後
の糸切れも検出することができる。従来の検出装置は何
れも、整列糸部分において糸切れ検出を行っていたの
で、この経糸整列部を通過した後の糸切れに関しては検
出不可能であった。これに対し、本発明装置の場合、製
品編成の直前において糸切れ検出を行うようにしている
ので、糸切れによる不良反の減少に果たす役割は大変大
きいものがある。Further, if the yarn breakage is detected between the knitting needle and the guide in the warp knitting machine having a high yarn breakage occurrence rate, the yarn breakage detection responsiveness can be further improved and a large number of yarn breakages can be detected. It is also possible to detect thread breakage after passing through the aligned portion in which the threads are aligned in parallel. Since all the conventional detecting devices detect the yarn breakage in the aligned yarn portion, it is impossible to detect the yarn breakage after passing through the warp yarn alignment portion. On the other hand, in the case of the device of the present invention, the yarn breakage is detected immediately before the knitting of the product, so that it has a very important role to play in reducing defective warpage due to yarn breakage.
【図１】本発明に係る実施例装置における駆動機構を説
明する概略側面図である。FIG. 1 is a schematic side view illustrating a drive mechanism in an apparatus according to an embodiment of the present invention.
【図２】同装置の駆動機構を説明する概略正面図であ
る。FIG. 2 is a schematic front view illustrating a drive mechanism of the device.
【図３】同装置におけるブロック線図である。FIG. 3 is a block diagram of the device.
【図４】同装置におけるＣＣＤカメラの撮像範囲（正
常）を示す概略説明図である。FIG. 4 is a schematic explanatory diagram showing an imaging range (normal) of a CCD camera in the same apparatus.
【図５】同装置におけるＣＣＤカメラの撮像範囲（異
常）を示す概略説明図である。FIG. 5 is a schematic explanatory diagram showing an imaging range (abnormality) of a CCD camera in the same apparatus.
１ ＣＣＤカメラ ２ 設定器 ３ 比較制御器 ４ カメラ制御器 Ｃ キャリヤー Ｇ ガイド Ｌ 光源 Ｒ レール Ｓ 糸列 Ｎ 編針 1 CCD camera 2 setting device 3 comparison controller 4 camera controller C carrier G guide L light source R rail S thread row N knitting needle
Claims (4)
て成る糸列Ｓに対し幅方向に配設したレールＲに沿っ
て、所要範囲の糸列Ｓを撮像するＣＣＤカメラ１を往復
移動せしめることにより、糸列Ｓの糸切れを検出するに
あたり、 多数の電荷結合素子を面状に配列して成るＣＣＤカメラ
１が撮像する範囲における糸列Ｓの糸切れのない状態に
対応する値を、設定器２へ入力することにより当該設定
器２にシキイ値信号を出力せしめ、 前記ＣＣＤカメラ１が出力する撮像範囲の撮像信号を素
子毎に二値化処理し、得られた二値信号〔１と０〕の比
を糸現在値信号として計算して、この糸現在値信号と、
前記設定器２が出力するシキイ値信号とを比較して両者
が一致しないときに異常信号を出力せしめるようにした
ことを特徴とする糸切れ検出方法。1. A CCD camera 1 for reciprocating an image of a yarn array S within a required range along a rail R arranged in the width direction with respect to a yarn array S formed by a large number of yarns arranged in parallel or in a skewed state. When the yarn breakage of the yarn train S is detected by moving the yarn train, a value corresponding to a state in which there is no yarn breakage of the yarn train S in the range captured by the CCD camera 1 formed by arranging a large number of charge-coupled devices in a plane. Is input to the setter 2 to output a shiki value signal to the setter 2, and the image pickup signal of the image pickup range output by the CCD camera 1 is binarized for each element, and the obtained binary signal is obtained. The ratio of [1 and 0] is calculated as the yarn present value signal, and the yarn present value signal is
A yarn breakage detection method, characterized in that the abnormal value signal is output when the shiki value signal output from the setting device 2 is compared and the two do not match.
ドＧとの間の糸列Ｓに対し、且つ経編機の編成サイクル
のうちの編針ＮとガイドＧとが離れた瞬間に行うように
したことを特徴とする請求項１記載の糸切れ検出方法。2. A yarn breakage is detected at the moment when the knitting needle N and the guide G of the warp knitting machine are separated from the yarn row S between the knitting needle N and the guide G of the warp knitting machine. The yarn breakage detection method according to claim 1, wherein the yarn breakage detection method is performed.
て成る糸列Ｓに対し幅方向に配設されたレールＲに沿っ
て往復走行するキャリヤーＣと；前記キャリヤーＣに設
置され、糸列Ｓの所要範囲を撮像する、多数の電荷結合
素子を面状に配列して成るＣＣＤカメラ１と；同キャリ
ヤーＣに設置され、ＣＣＤカメラ１の撮像範囲における
糸列Ｓを照明する光源Ｌと；前記ＣＣＤカメラ１の撮像
範囲における糸列Ｓの糸切れのない状態に対応する値を
入力設定することによりシキイ値信号を出力する設定器
２と；前記ＣＣＤカメラ１が出力する撮像範囲の撮像信
号を素子毎に二値化処理し、得られた二値信号〔１と
０〕の比を糸現在値信号として計算して、この糸現在値
信号と前記設定器２が出力するシキイ値信号とを比較し
て両者が一致しないときに異常信号を出力する比較制御
器３と；を含むことを特徴とした糸切れ検出装置。3. A carrier C which reciprocates along a rail R arranged in the width direction with respect to a yarn row S in which a large number of yarns are arranged in parallel or in a skewed state; A CCD camera 1 formed by arranging a large number of charge-coupled devices in a plane for imaging a required range of the thread train S; a light source L installed on the same carrier C and illuminating the thread train S in the imaging range of the CCD camera 1. A setting device 2 for outputting a squeeze value signal by inputting and setting a value corresponding to a state in which there is no yarn breakage of the yarn row S in the image pickup range of the CCD camera 1; The image pickup signal is binarized for each element, the ratio of the obtained binary signals [1 and 0] is calculated as a yarn current value signal, and the yarn current value signal and the shiki value output by the setting device 2 are calculated. If you compare the signals and the two do not match A yarn breakage detection device, comprising: a comparison controller 3 that outputs an abnormal signal when the yarn breaks.
ＣＣＤカメラ１の撮像タイミングおよびキャリヤーＣの
走行を制御するカメラ制御器４を設けることによって、
糸切れの検出を、経編機の編針ＮとガイドＧとの間の糸
列Ｓに対し、且つ経編機の編成サイクルのうちの編針Ｎ
とガイドＧとが離れた瞬間に行うように構成したことを
特徴とする請求項３記載の糸切れ検出装置。4. Synchronizing with the knitting cycle of the warp knitting machine,
By providing the camera controller 4 for controlling the image pickup timing of the CCD camera 1 and the traveling of the carrier C,
The detection of the yarn breakage is performed on the yarn row S between the knitting needle N of the warp knitting machine and the guide G, and the knitting needle N of the knitting cycle of the warp knitting machine.
The yarn breakage detection device according to claim 3, wherein the yarn breakage detection device is configured to perform the operation at a moment when the guide G and the guide G are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5270579A JPH0825691B2 (en) | 1993-10-28 | 1993-10-28 | Method of detecting thread breakage of warp knitting machine and device used therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5270579A JPH0825691B2 (en) | 1993-10-28 | 1993-10-28 | Method of detecting thread breakage of warp knitting machine and device used therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07117927A true JPH07117927A (en) | 1995-05-09 |
| JPH0825691B2 JPH0825691B2 (en) | 1996-03-13 |
Family
ID=17488101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5270579A Expired - Fee Related JPH0825691B2 (en) | 1993-10-28 | 1993-10-28 | Method of detecting thread breakage of warp knitting machine and device used therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0825691B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007352A1 (en) * | 1999-07-21 | 2001-02-01 | Regis Munoz | Device for observing and controlling one or more textile yarns by a succession of numerical photographs |
| CN102830120A (en) * | 2012-08-16 | 2012-12-19 | 杭州瑞利测控技术有限公司 | Machine vision-based beaming broken yarn on-line monitoring system and implementation method thereof |
| JP2015117461A (en) * | 2013-12-16 | 2015-06-25 | ザウラー ジャーマニー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトＳａｕｒｅｒ Ｇｅｒｍａｎｙ ＧｍｂＨ ＆ Ｃｏ． ＫＧ | Rewinder operating method and rewinder |
| CN104850098A (en) * | 2015-04-29 | 2015-08-19 | 福建省晋江市华宇织造有限公司 | Production online automatic monitoring numerical control system based on warp knitting machine |
| CN104928837A (en) * | 2015-05-22 | 2015-09-23 | 苏州三立自动化设备有限公司 | Warp knitting machine with thread breakage detection function and thread breakage detection method implemented by aid of warp knitting machine |
| CN107740232A (en) * | 2017-10-16 | 2018-02-27 | 杭州琦星机器人科技有限公司 | Wire-off detection device for sewing machine, detection method and sewing machine |
| CN108691045A (en) * | 2018-08-29 | 2018-10-23 | 山英智能科技（桐乡）有限公司 | A kind of the spun yarn Yarn break checkout gear and its method of view-based access control model detection |
| CN109402860A (en) * | 2018-11-12 | 2019-03-01 | 安徽鸿森智能装备股份有限公司 | Broken yarn detection device |
| CN112391731A (en) * | 2020-10-20 | 2021-02-23 | 天津大学 | Online detection method for yarn breakage during weaving of warp knitting machine |
| CN113640313A (en) * | 2021-08-10 | 2021-11-12 | 大易智慧信息科技(苏州)有限公司 | Warping machine color yarn detection device based on machine vision |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11172557A (en) * | 1997-12-03 | 1999-06-29 | Nippon Mayer Ltd | Detection of brocken thread in warp-knitting machine and apparatus therefor |
| EP2159182B1 (en) | 2007-05-11 | 2013-07-17 | Toray Industries, Inc. | Running yarn line inspection method and carbon fiber manufacturing method using thereof |
| CN101831758B (en) * | 2010-05-20 | 2013-05-08 | 常州市第八纺织机械有限公司 | Detection device and method of weft breakage of double-axis warp knitting machine |
| EP3333292B1 (en) * | 2016-12-12 | 2019-01-30 | Karl Mayer Textilmaschinenfabrik GmbH | Method and auxiliary device for the adjustment of a warp knitting machine |
| CN107557989A (en) * | 2017-09-19 | 2018-01-09 | 海宁市圣达威经编有限公司 | Tricot machine and tricot machine broken string localization method with broken string positioning function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0192468A (en) * | 1986-08-20 | 1989-04-11 | Japan Small Business Corp | Cloth inspection apparatus using image processor |
| JPH042864A (en) * | 1990-04-17 | 1992-01-07 | Toyobo Co Ltd | Method for sensing pulled yarn |
-
1993
- 1993-10-28 JP JP5270579A patent/JPH0825691B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0192468A (en) * | 1986-08-20 | 1989-04-11 | Japan Small Business Corp | Cloth inspection apparatus using image processor |
| JPH042864A (en) * | 1990-04-17 | 1992-01-07 | Toyobo Co Ltd | Method for sensing pulled yarn |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007352A1 (en) * | 1999-07-21 | 2001-02-01 | Regis Munoz | Device for observing and controlling one or more textile yarns by a succession of numerical photographs |
| CN102830120A (en) * | 2012-08-16 | 2012-12-19 | 杭州瑞利测控技术有限公司 | Machine vision-based beaming broken yarn on-line monitoring system and implementation method thereof |
| JP2015117461A (en) * | 2013-12-16 | 2015-06-25 | ザウラー ジャーマニー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトＳａｕｒｅｒ Ｇｅｒｍａｎｙ ＧｍｂＨ ＆ Ｃｏ． ＫＧ | Rewinder operating method and rewinder |
| CN104850098A (en) * | 2015-04-29 | 2015-08-19 | 福建省晋江市华宇织造有限公司 | Production online automatic monitoring numerical control system based on warp knitting machine |
| CN104928837A (en) * | 2015-05-22 | 2015-09-23 | 苏州三立自动化设备有限公司 | Warp knitting machine with thread breakage detection function and thread breakage detection method implemented by aid of warp knitting machine |
| CN107740232A (en) * | 2017-10-16 | 2018-02-27 | 杭州琦星机器人科技有限公司 | Wire-off detection device for sewing machine, detection method and sewing machine |
| CN108691045A (en) * | 2018-08-29 | 2018-10-23 | 山英智能科技（桐乡）有限公司 | A kind of the spun yarn Yarn break checkout gear and its method of view-based access control model detection |
| CN109402860A (en) * | 2018-11-12 | 2019-03-01 | 安徽鸿森智能装备股份有限公司 | Broken yarn detection device |
| CN112391731A (en) * | 2020-10-20 | 2021-02-23 | 天津大学 | Online detection method for yarn breakage during weaving of warp knitting machine |
| CN113640313A (en) * | 2021-08-10 | 2021-11-12 | 大易智慧信息科技(苏州)有限公司 | Warping machine color yarn detection device based on machine vision |
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| Publication number | Publication date |
|---|---|
| JPH0825691B2 (en) | 1996-03-13 |
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