JPS6094626A - Control of sliver unevenness in drawing frame and its device - Google Patents

Control of sliver unevenness in drawing frame and its device

Info

Publication number
JPS6094626A
JPS6094626A JP58197988A JP19798883A JPS6094626A JP S6094626 A JPS6094626 A JP S6094626A JP 58197988 A JP58197988 A JP 58197988A JP 19798883 A JP19798883 A JP 19798883A JP S6094626 A JPS6094626 A JP S6094626A
Authority
JP
Japan
Prior art keywords
sliver
draft
value
circuit
unevenness
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
Application number
JP58197988A
Other languages
Japanese (ja)
Other versions
JPH0227448B2 (en
Inventor
Seiichi Shimizu
清水 清一
Yoshiyuki Azuma
東 桂幸
Toru Kitazawa
北沢 亨
Katsuhiro Yamamoto
勝洋 山本
Takashi Wada
隆 和田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ishikawa Seisakusho Ltd
Original Assignee
Ishikawa Seisakusho Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ishikawa Seisakusho Ltd filed Critical Ishikawa Seisakusho Ltd
Priority to JP58197988A priority Critical patent/JPS6094626A/en
Publication of JPS6094626A publication Critical patent/JPS6094626A/en
Publication of JPH0227448B2 publication Critical patent/JPH0227448B2/ja
Granted legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32Regulating or varying draft
    • D01H5/38Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/32Counting, measuring, recording or registering devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

PURPOSE:To control sliver unevenness only by forward feeding, by checking sliver unevenness at stage of feed sliver and at stage of accumulated feed slivers, respectively, feeding sliver through the corrected draft part to a draft part of a main body. CONSTITUTION:The corrected draft part 3 is set between the draft part 1 of main body and the creel part 2, and the detector 6 for sliver unevenness is fixed between the corrected draft part 3 and the creel part 2. Sliver unevenness is detected for each feed sliver separated into a group of one or two. When the unevenness exceeds the prescribed value, a drawing frame is stopped. When each detected value is within an allowable range, values of the whole feed slivers added are compared with the set value. A drawing frame whose compared value deviates from the prescribed value is stopped, and when it is in the allowable range, the compared variation signal is used as an operation order signal to the corrected draft part to control sliver unevenness.

Description

【発明の詳細な説明】 本発明は線条機におけるスライバー斑制御方法とその装
置に関するもので、更に詳しくは線条機本体のドラフト
部へスライバー全供給する前に実質的に各供給スライバ
ーが有する中・長区間斑及び短区間斑を可及的に減少せ
しめたスライバー長、本体ドラフト部へ供給するように
したスライバー斑制御方法とその装置に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and device for controlling sliver unevenness in a wire forming machine, and more specifically, the present invention relates to a method and apparatus for controlling sliver unevenness in a drawing machine, and more specifically, the present invention relates to a method and apparatus for controlling sliver unevenness in a drawing machine. The present invention relates to a sliver unevenness control method and apparatus for supplying a sliver length to a draft portion of a main body, reducing medium/long-range unevenness and short-range unevenness as much as possible.

尚本発明で制御対象とするスライバー周期斑のうち短区
間斑とはスライバー斑をツエルヴ工−ガー社のウスター
試験機で測定した際ウスターチャートに評価される程度
の(約1m以下)斑周期であり、一方中区間斑とはスラ
イバー長さ2.5mから25m程度にお社る斑のことで
あり、更に長周期斑とはスライバー長さ25m以上程度
における斑のことを相称するものであって、ゲレン変動
に現われる周期斑を対称とする。
Among the sliver periodic irregularities to be controlled in the present invention, short-range irregularities are defined as short-range irregularities that have a irregularity (approximately 1 m or less) that is evaluated on the Worcester chart when sliver irregularities are measured using a Zwelve Engineering Worcester testing machine. On the other hand, medium-period spots refer to spots with a sliver length of about 2.5 m to 25 m, and long-period spots refer to spots with a sliver length of about 25 m or more. , the periodic spots that appear in gellen fluctuations are symmetrical.

従未線条機でスライバー斑を制御する場合本体ドラフト
部でドラフト変速をすると、スライバーの通過速度が早
いためスライバー斑修正制御に高度性を要し、且つその
装置を本体に組み込むと極めて複雑となるところから、
本体ドラフト装置tり前にスライバーの重量斑を修正す
るようにしたものが提案されている。(特公昭57−3
5298号)しかしこのものは最近の高速化した線条機
で比較的波長の短い斑を精度良く修正するという利点は
あるが、中・長周期斑に対しては必ずしも適切でなく且
つスライバー重曹測定に際1−、ケンスより引き揚げら
れた供給スライバー全体を測定部に送り込むため、スラ
イバーを絞り込の、しかる後再びスライバーを規則正し
く並列させるため拡開するという工程を要し、このため
このスライバー周期斑・拡開時にスライバーを構成する
繊維相互の抱合性を乱しやすく品質的に好ましくな゛い
欠点があった。そこでこの欠点を解消する試みとして本
体ドラフト部上流側に調整ドラフト部を設けると共に、
更に!*調整ドラフト部上流側に静電容量型検出器を配
置17、該検出器の出力信号によってフィードホラ−1
゛制御によりスライバー斑のりち短区間9iを制御し、
−刃本体ドラフト部下流側のトランペットに設けた空気
マイクロメータの検出信号により、フィードバック方式
で調整ドラフト部を制御し中・長区間斑を排除するよう
にしたものが提案されている。(#j開昭58−311
243号) しかしこの方式はスライバーの制御方式と
して長区間から短区間斑に亘る広範囲のスライバー斑を
除去するという点では理想的ともいえるが、検出装置が
静電容量型であるため繊度、室内の温湿度条件等の外乱
の影響2更には混線時の繊維材料の違いによって影響を
受けやすいこと、更にまたフィードホワード及びフィー
ドバック併用タイプの制御装置が複雑な機構になり、そ
の装置の価格が線条機の本体の価格に匹敵する程高価と
なる欠点がめった。
When controlling sliver mottling with a conventional streak machine, if the draft speed is changed in the draft section of the main body, the sliver passes through the machine at a fast speed, so the sliver mottling correction control requires a high degree of sophistication, and if the device is incorporated into the main body, it becomes extremely complicated. As it turns out,
A device has been proposed in which weight irregularities in the sliver are corrected before the main body draft device is installed. (Tokuko Showa 57-3
5298) However, although this method has the advantage of accurately correcting relatively short-wavelength spots with the recent high-speed streaking machine, it is not necessarily suitable for medium- and long-period spots, and it is not suitable for sliver baking soda measurement. In order to send the entire supplied sliver pulled up from the can to the measuring section, it is necessary to squeeze the sliver, and then expand it again to arrange the slivers regularly in parallel.・During expansion, the conjugation between the fibers constituting the sliver tends to be disturbed, which is a disadvantage in terms of quality. Therefore, in an attempt to eliminate this drawback, an adjustment draft part is provided on the upstream side of the main body draft part, and
Even more! *A capacitance type detector is placed 17 on the upstream side of the adjustment draft section, and the feed hole 1 is detected by the output signal of the detector.
``Control the short section 9i of the sliver spot by controlling,
- It has been proposed that the adjustment draft section is controlled by a feedback method using a detection signal from an air micrometer installed on the trumpet downstream of the draft section of the blade body to eliminate medium and long-range unevenness. (#j Kaisho 58-311
(No. 243) However, this method can be said to be ideal as a sliver control method in terms of removing sliver mottling over a wide range from long to short range mottling, but since the detection device is a capacitance type, the fineness and indoor Effects of external disturbances such as temperature and humidity conditions 2.Furthermore, it is easily affected by differences in fiber materials during crosstalk, and furthermore, feedforward and feedback type control devices have complicated mechanisms, and the price of such devices has increased dramatically. The drawback was that it was expensive, comparable to the price of the machine itself.

そこで本発明は上述の欠点を解消せんとするもので、そ
の目的とするところは本体ドラフト部へスライバーを送
り込む以前であって、供給スライバーの送り出し経路中
に、スライバー斑の検出するためのスライバーの集束は
出来るだけ回避し、スライバーの自然の進行状態下で、
その斑を検出すると共にその制御手段葡フィードホワー
ドのみで、月その装置もそれ程高価でなく比較的簡易な
もので、スライバーの有する主として中・長区間斑を制
御する極めて実用的なスライバー斑を修正制御する方法
と装置を提供−VA、とするところにある。本発明の特
徴とするところを要約すれば本発明は本体ドラフト部の
」二流側に配置1.た修正ドラフト部と更に該修正ドラ
フト部の上流側に配置したスライバー斑を検出する検出
装置と金策えた線条機でスライバー斑の制御音するに際
し、1本又は2本に群分けした供給スライバー毎に該ス
ライバー斑を検出し、この検出価が予め定めた規定値を
越えると機台を修正せしめると共に一方各検出値が許容
範囲内であればこれらを加肯した供給スライバー全体の
測定値と予め定めた標準供給スライバー設定値とを比較
し、この比較値が予め定めた規定値を逸脱すると機台を
停止せしめると共に一方比較値が許容範囲内であればこ
の比較した偏差信″@を修正ドラフト部への作動指令信
号となしてスライバー斑を制御するようにしたことを特
徴とするスライバー斑制御方法であって、その装置とし
て本体ドラフト部の上流側に修正ドラフト装置を設ける
と共に更に該修正ドラフト装置の上流側KI本又は2本
に群分けした供給スライバー毎にスライバー斑検出装置
を設け、該検出装置をフィルター回路を介し一方は予め
定めた規定値を越えると機台を停止せしめる異常検出回
路に接続し、他方は核各検出装置からの検出値を加算す
る演算回路に接続し、更に該加算演算回路を予め定めた
標準供給スライバー設定値と比較する比較回路に接続す
ると共に該比較回路を一方は予め定めた規定値を逸脱す
ると機台を停止せしめる異常検出回路に接続し他方はそ
の偏差信号によって作動する修正ドラフト装置の駆動回
路に接続して構成したことを特徴とするものである。
Therefore, the present invention aims to solve the above-mentioned drawbacks, and its purpose is to detect sliver irregularities during the feeding path of the supplied sliver before feeding the sliver to the main draft part. Focusing is avoided as much as possible, and under the natural progress of the sliver,
The device for detecting the spots and controlling them is only feedforward, which is relatively simple and not very expensive, and is extremely practical for controlling mainly medium and long range spots on the sliver. Provides a method and apparatus for controlling - VA. To summarize the features of the present invention, the present invention is arranged on the "second flow side" of the main body draft part.1. In order to control the sliver unevenness using a modified draft section, a detection device for detecting sliver irregularities placed upstream of the modified draft section, and a well-finished striation machine, each supplied sliver is divided into one or two groups. If the detected value exceeds a predetermined value, the machine is corrected, and if each detected value is within the allowable range, the measured value of the entire supplied sliver is calculated in advance. The comparison value is compared with the predetermined standard supply sliver setting value, and if the comparison value deviates from the predetermined value, the machine is stopped. On the other hand, if the comparison value is within the allowable range, the compared deviation signal "@" is corrected as a draft. A method for controlling sliver mottling, characterized in that the sliver mottling is controlled by using an operation command signal to the main body draft part, and the sliver mottling control method is characterized in that a modified draft device is provided on the upstream side of the main body draft part, and the modified draft device is further provided on the upstream side of the main body draft part. A sliver unevenness detection device is provided for each KI sliver or two groups of supplied slivers on the upstream side of the device, and the detection device is connected to a filter circuit, and one is an abnormality detection circuit that stops the machine when a predetermined value is exceeded. The other side is connected to an arithmetic circuit that adds the detection values from each nuclear detection device, and is further connected to a comparator circuit that compares the addition arithmetic circuit with a predetermined standard supply sliver setting value. One is connected to an abnormality detection circuit that stops the machine if it deviates from a predetermined value, and the other is connected to a drive circuit for a corrected draft device that is activated by the deviation signal.

以下本発明方法を実施する装置の1例を図面について具
体的に説明すると第1図及び第2図に於いて、1は線条
機本体のドラフト部で、2けクリール部、3け前記線条
機本体ドラフト部1と前記クリール部2との間であって
本体ドラフト部上流側に配置された修正ドラフト部で、
肢ドラフト部d、一定の速度で回転するプレドラフトフ
ロントローラ3aと、該フロントローラに苅1.可変速
モータ4を動源として差動歯車機構5を介1〜でその1
91転速度が変速されるプレドラフトバックローラ3b
とより成るものである。6け前記修正ドラフト部6と前
記クリール部2の間であって修正ドラフト部3の上流側
に配置されたスライバー斑検出装置で、該スライバー斑
検出装置はスライバーを囲む婢を有するローラ6aと、
該溝部に嵌合してスライバーの容積変動に応じて変位す
る押圧ローラ6bとより成るメジャリングローラ7と肢
メジャリングローラ7の抑圧ロー26bの変位を感知し
て電気信号に変換する磁気センサー8 (第3図)とよ
り構成されているものである。更にこのスライバー斑検
出装置6を第3図によって詳述すると前記メジャリング
ローラ7−、ケンス9 (第1図)より引き揚げられた
供給スライバー1本毎の各個別に又はスライバー2本毎
に組み分けして、それぞれ配設されるもので、該メジャ
リングローラ7を構成するローラ6a’(H固定した取
付軸10は前記修正ドラフト装置3のバックローラ3b
と同調するように歯車列11と噛み合っていて、一方前
記押圧ローラ6bけロッド12を中心として上下に揺動
するレバー13の中間部に取付られている。14は前記
メジャリングローラ6の溝付ローラ6aと押圧ローラ6
bとに狭まれたスライバーに一定圧で押圧するため前記
レバー16を一定の力で押圧するレバー抑圧装置で、該
レバー抑圧装置は軸15を支点として水平方向に回動可
能に支持されたL型レバー16と該レバーの一端に取付
られた圧縮スプリング17とより構成されているもので
ある。8は前記レバー13の先端下部近傍に配設された
磁気センサーで、磁気センサーは前記レバー13の変位
nを検知して、電圧の変化に変換するものである。第4
図に於いて1本又は2本に群分けした供給スライバー毎
に配設した前記レバー13の変位量に比例して電圧の変
化に変換する前記磁気センサー8を、それぞれ連断周波
数Q、3Hz以下のローパスフィルターよりなるフィル
ター回路19に接続する。このフィルター回路19では
機械構成要素例えばメジャリングローラ7の偏心等によ
る微振動等スライバー斑以外の機械系の振動を排除する
ためのもので、このフィルター回路19をそれぞれ異常
検出回路20に接続する。この異常検出回路20#1A
fl記フイルター回路19を通過(7た電圧が予め定め
た任意の設定値の例えば、±30優(この値は繊維の種
類、繊度に応じて適宜選択するものである)以外にある
場合機台を停止せしめる信号を出力するもので、ここで
スライバーの中・長区間後の原因ともなっている個々の
異常スライバーを排除するものであり、この異常検出回
路20で各検出値が許容範囲内であれば、個々のセンサ
8及びフィルター回路19を介して出力した信号を集積
して合計する加算演算回路21に接続すると共に、更(
11) に該加算演算回路を予め定めた標準供給スライバーの設
定値と比較する比較回路22に接続する。この比較回路
22は予め標準供給スライバーの設定重量に応じた設定
電圧と前記加算演算回路21からの個々のセンサによっ
て検出した値を合計した電圧との両者を比較すると共に
その偏差電圧を標準供給スライバーの設定重量に対する
実際の変動型itを百分率に評価して変換する正規化変
換回路を含むもので、この比較回路22を第二異常検出
回路23に接続し、ここで比較回路22からの偏差電圧
が標準供給スライバーの設定値の例えば±20チ(この
値も繊維の種類、繊度に応じて適宜選択するものである
)以上のとき機台を停止せしめ、ここでもスライバーの
中・長区間後を排除するものである。
An example of an apparatus for carrying out the method of the present invention will be explained in detail below with reference to the drawings. In FIGS. A modified draft part disposed between the draft part 1 of the main body of the straight machine and the creel part 2 and on the upstream side of the draft part of the main body,
The limb draft part d includes a pre-draft front roller 3a rotating at a constant speed, and a brush 1. The variable speed motor 4 is used as the power source and the differential gear mechanism 5 is used as the drive source.
91 Pre-draft back roller 3b whose rotation speed is changed
It consists of A sliver spot detection device is disposed between the modified draft section 6 and the creel section 2 and on the upstream side of the modified draft section 3, and the sliver spot detection device includes a roller 6a having a groove surrounding the sliver;
A measuring roller 7 consisting of a pressing roller 6b that fits into the groove and is displaced according to the volume variation of the sliver, and a magnetic sensor 8 that senses the displacement of the suppression row 26b of the limb measuring roller 7 and converts it into an electric signal. (Fig. 3). Further, this sliver unevenness detection device 6 will be described in detail with reference to FIG. 3. The measuring roller 7-, the supply sliver pulled up from the can 9 (FIG. 1) are divided into groups individually or every two slivers. The mounting shaft 10 fixed to the roller 6a' (H) constituting the measuring roller 7 is attached to the back roller 3b of the corrective draft device 3.
The lever 13 meshes with the gear train 11 in synchronization with the lever 11, and is attached to the intermediate portion of a lever 13 that swings up and down about the rod 12 that supports the pressure roller 6b. 14 is the grooved roller 6a of the measuring roller 6 and the pressing roller 6.
This is a lever suppressing device that presses the lever 16 with a constant force in order to press the sliver narrowed between the L and B with a constant force. It consists of a mold lever 16 and a compression spring 17 attached to one end of the lever. Reference numeral 8 denotes a magnetic sensor disposed near the lower end of the lever 13, and the magnetic sensor detects the displacement n of the lever 13 and converts it into a change in voltage. Fourth
In the figure, the magnetic sensor 8, which converts the voltage change in proportion to the displacement of the lever 13 arranged for each supply sliver grouped into one or two groups, is operated at a continuous frequency Q of 3 Hz or less. It is connected to a filter circuit 19 consisting of a low-pass filter. The filter circuits 19 are used to eliminate vibrations of the mechanical system other than sliver irregularities, such as minute vibrations caused by eccentricity of mechanical components such as the measuring roller 7, and each of the filter circuits 19 is connected to an abnormality detection circuit 20. This abnormality detection circuit 20#1A
If the voltage passing through the filter circuit 19 (7) is outside a predetermined arbitrary setting value, for example, ±30 (this value is selected appropriately depending on the type and fineness of the fiber), the machine It outputs a signal to stop the sliver, and eliminates individual abnormal slivers that are the cause of medium and long sections of the sliver, and this abnormality detection circuit 20 detects whether each detected value is within the allowable range. For example, it is connected to an addition calculation circuit 21 that integrates and sums up the signals outputted through the individual sensors 8 and filter circuits 19, and furthermore (
11) Connect the addition calculation circuit to a comparison circuit 22 that compares it with a predetermined set value of the standard supply sliver. This comparison circuit 22 compares in advance a set voltage corresponding to the set weight of the standard supply sliver with a voltage that is the sum of the values detected by the individual sensors from the addition calculation circuit 21, and calculates the deviation voltage between the standard supply sliver This circuit includes a normalization conversion circuit that evaluates and converts the actual variable IT into a percentage with respect to the set weight of When the value exceeds the set value of the standard supply sliver by, for example, ±20 inches (this value is also selected appropriately depending on the type and fineness of the fiber), the machine is stopped, and here too, the machine is stopped after the middle and long sections of the sliver. It is to be excluded.

一方前記比較回路22を前記修正ドラフト部3の駆動源
となるモータ4の駆動回路24に接続し、比較回路22
からの偏差電圧が標準供給スライバーの設定電圧に対し
、許容範囲内であれば、その偏差電圧に応じた電圧変化
指令信号に(12) より、モータ4を駆動して修正ドラフト装置3を作動す
るように構成されている。
On the other hand, the comparison circuit 22 is connected to the drive circuit 24 of the motor 4 which is the drive source of the modified draft section 3.
If the deviation voltage from the standard supply sliver is within the allowable range with respect to the set voltage of the standard supply sliver, the motor 4 is driven to operate the modified draft device 3 in accordance with the voltage change command signal (12) according to the deviation voltage. It is configured as follows.

本発明を実施する装置の1例は上述のように構成された
もので、次にその作用について説明すると今ケンス9に
収納されていたスライバーS カフィードローラ25に
よってクリール2上に引き揚げられ、そのまま順次スラ
イバー斑検出装置6に送り込まれる。このスライバー斑
検出装置6ではメジャリングローラ7を形成する溝付ロ
ー56aの溝部にスライバー8が送り込社扛このときス
ライバーSの容積変化に応じて抑圧ローラ6bが上下に
変位する。この抑圧ロー26bが変位すると該ローラを
取付けたレバー13がロッド12tl−支点として揺動
し、このため該レバーの先端部近傍に取付けた磁気セン
サー8がこの変動を検出して、その変位に応じて電気信
号の変化として変換する。次いでこの検出信号がフィル
ター回路19に入力され、ここで、0.3Hzを越える
周波数は減衰又は遮断されるので機械系の微振動等のノ
イズが混入するのを排除する。更にこのフィルター回路
19を通過した電圧が予め定めた設定値の±30%以外
にある場合は異常検出回路20で検知され、機台を停止
する信号を出力する。これによりスライバーの有する中
・長区間後の要因の第1段階でのチェックがされる。一
方仮りに±30%以内の許容範囲内であれば各スライバ
ー毎のスライバー斑検出装置i6及びローパスフィルタ
ー回路19を経た電圧が加算演算回路21に入力され、
ここで集積合計される。次いでこのスライバー全体の集
積された電圧は、予め標準供給スライバーに応じた設定
電圧と比較され、その偏差電圧を百分率で評価するため
の正規化変換回路で修正され、ここで修正値が仮りに±
20優以上のときは異常検出回路23t−介し機台を停
止せしめる。これによりスライバー斑の中・長区間後の
第Z段階のチェックが行なわれる。一方修正値が仮りに
±20q6以内の許容値であればこの修正された偏差信
号が修正ドラフトモータ4へ入力されモータ4が駆動さ
れる。モータ4が駆動さねねげ差動歯車機構5を介し修
正ドラフト部6のバックローラ3bに伝達され、その偏
差信号の電圧変化に応じてバックローラ6bの回転速度
を変化せしめる。この結果修正ドラフト部3の一定速麿
で回転するフロントローラ3aと変速回転するバックロ
ーラ!Ibとの間で速度差が生じ、供給スライバーsF
i正又は負のドラフトが行われ、その斑が修正される。
An example of an apparatus for carrying out the present invention is constructed as described above, and its operation will now be explained.The sliver S, which had been stored in the can 9, is lifted onto the creel 2 by the feed roller 25, and as it is. The sliver is sequentially sent to the sliver spot detection device 6. In this sliver spot detection device 6, when the sliver 8 is caught in the groove of the grooved row 56a forming the measuring roller 7, the suppression roller 6b is vertically displaced in accordance with the change in the volume of the sliver S. When the suppression row 26b is displaced, the lever 13 to which the roller is attached swings as a fulcrum on the rod 12tl, and the magnetic sensor 8 attached near the tip of the lever detects this fluctuation and responds accordingly to the displacement. and convert it as a change in electrical signal. Next, this detection signal is input to the filter circuit 19, where frequencies exceeding 0.3 Hz are attenuated or blocked, thereby eliminating noise such as minute vibrations of the mechanical system. Further, if the voltage passing through the filter circuit 19 is outside the range of ±30% of the predetermined set value, it is detected by the abnormality detection circuit 20 and outputs a signal to stop the machine. As a result, the factors that the sliver has after medium and long sections are checked at the first stage. On the other hand, if it is within the allowable range of ±30%, the voltage that has passed through the sliver spot detection device i6 and the low-pass filter circuit 19 for each sliver is input to the addition calculation circuit 21,
Here, it is accumulated and totaled. The integrated voltage of this entire sliver is then compared with a previously set voltage according to the standard supply sliver and corrected in a normalization converter circuit to evaluate the deviation voltage in percentage, where the corrected value is temporarily ±
When it is 20 or more, the machine is stopped via the abnormality detection circuit 23t. As a result, the Z-th stage check after the middle and long sections of sliver spots is performed. On the other hand, if the corrected value is an allowable value within ±20q6, this corrected deviation signal is input to the corrected draft motor 4 and the motor 4 is driven. The motor 4 is transmitted to the back roller 3b of the corrected draft section 6 via the drive tongue and groove differential gear mechanism 5, and the rotational speed of the back roller 6b is changed in accordance with the voltage change of the deviation signal. As a result, the front roller 3a of the corrected draft section 3 rotates at a constant speed and the back roller rotates at variable speeds. A speed difference occurs between the supply sliver sF and the supply sliver sF.
A positive or negative draft is performed to correct the spots.

ここで供給スライバー日の有する中・長区間源は完全に
修正され、更にスライバー斑検出装置6の感度及び修正
ドラフト部3の対応速変により短周期床の修正に対して
も好影響を及ぼす。
Here, the medium- and long-range sources of the supplied sliver are completely corrected, and furthermore, the sensitivity of the sliver spot detection device 6 and the corresponding speed change of the correction draft section 3 have a favorable effect on the correction of the short-period bed.

(実施例) 設定条件 ■ 紡出繊維 綿100% (カード揚り)■ 紡出速
度 300町/mis ■ 供給スライバー 450)A//Ayd■ 紡出ス
ライバー 450ルン/ayd(5)本体ドラフト倍率
 8倍 ■ ダブリング数 8 (15) ■ 修正ドラフト倍率 1.2倍 ■ プレドラフト70ントローラ径 350關@ プレ
ドラフトバックローラ径 65メmm■ 個々の供給ス
ライバー許容範囲(標準値に対し)30チ ■ 全体供給スライバー許容範囲(標準値に対し)20
チ qφ メジャリングローラ径 70.9mm■ 磁気セ
ンサー (アナログ出力型)以上の条件下で紡出後、ス
ライバーの周期斑としてツエルヴエガー社製ウスター試
験機でUチヲ測定すると共に6ヤード当りのゲレン変動
率を測定し、その結果を第1表に示す。尚比較例として
靜電答量検出器と空気マイクロメーター併用型の制御装
置を使用したもの及び従来例として制御装置のないもの
とを対比した。
(Example) Setting conditions ■ Spun fiber 100% cotton (carded) ■ Spinning speed 300 m/mis ■ Supply sliver 450) A//Ayd ■ Spun sliver 450 run/ayd (5) Main body draft magnification 8 Double ■ Number of doublings 8 (15) ■ Modified draft magnification 1.2 times ■ Pre-draft 70 roller diameter 350 mm @ Pre-draft back roller diameter 65 mm ■ Individual supply sliver tolerance (relative to standard value) 30 inches ■ Overall Supply sliver tolerance range (relative to standard value) 20
Measuring roller diameter 70.9 mm ■ Magnetic sensor (analog output type) After spinning under the above conditions, the periodic irregularities of the sliver are measured using a Worcester testing machine manufactured by Zellweger, and the rate of gelling fluctuation per 6 yards is measured. The results are shown in Table 1. In addition, as a comparative example, a case using a control device combining a static response amount detector and an air micrometer was compared, and a case without a control device was compared as a conventional example.

(16) 第1表 上表より明らかなように本発明による場合従来例及び比
較例に比較し0%及びCV%も向上している。
(16) As is clear from the upper table of Table 1, the present invention improves 0% and CV% compared to the conventional example and comparative example.

本発明は」−述のように線条機でスライバー斑の制御を
するに際し、紡出されるスライバー斑のうち主として中
・長区間源をその発生原因となる個々の供給スライバー
の段階で先ず第1段階のチェックを行うと共に、更に各
供給スライバーを集積加算した段階で再度標準スライバ
ー設定値と比較して第2段階のチェックを行い、更に最
終的に修正ドラフト部で修正し、しかる後本体ドラフト
部へスライバーを供給するようにしたので、従来のフィ
ードホワード及びフィードバック併用スライバー斑制御
方法等に比較して、単にフィードホワードのみの簡易な
方法で、極めて実質的にスライバー斑の制御を行うこと
ができ、またスライバー斑の検出に際して、スライバー
全体の集束を回避し、個々のスライバーのできるだけ自
然の進行状態下でメジャリングローラで検出するように
したので、繊維材料の違いによる影響、温湿度等の外乱
の影響などを無くし、更に個々のスライバーの異常検出
によってクリール部でのストップモーションとして兼用
でき、且つその装置も極めて安価に提供でき、その上既
設線条機でも微少の改造で容易に採用できる等の効果を
奏する。
As mentioned above, when controlling sliver unevenness with a filament machine, the present invention first removes mainly the medium and long range sources of the spun sliver unevenness at the stage of each supplied sliver, which is the cause of the occurrence. In addition to checking the stages, when each supplied sliver is accumulated and added, a second stage check is performed by comparing it again with the standard sliver setting value, and finally correction is made in the correction draft section, after which Since the sliver is supplied to the sliver, it is possible to control sliver unevenness very effectively with a simple method using only feedforward, compared to the conventional method of controlling sliver unevenness using feedforward and feedback. In addition, when detecting sliver irregularities, the convergence of the entire sliver was avoided, and the measuring roller was used to detect each sliver under its natural progress as much as possible, so the effects of differences in fiber materials and external disturbances such as temperature and humidity were avoided. Furthermore, by detecting abnormalities in individual slivers, it can also be used as a stop motion in the creel section.The device can also be provided at an extremely low cost, and furthermore, it can be easily adopted with existing wire forming machines with slight modification. It has the effect of

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明方法を実施する装置の1例を示す要部説
明図、第2図は第1図の要部概略斜視図、第3図はスラ
イバー斑検出装置の1例を示す要部斜視図、第4図は本
発明方法を実施する装置の電気回路ブロック図を示すも
のである。 1・・・・・・本体ドラフト部 6・・・・・・修正ド
ラフト部6・・・・・・スライバー斑検出装置 8・・・・・・磁気センサー 19・・・・・・フィル
ター回路20.25・・・・・・異常検出回路 21・
・・・・・加算演算回路22・・・・・・比較回路 24・・・・・・修正ドラフトモータ駆動回路(19) ネ1回 ネ2図
FIG. 1 is an explanatory view of the main parts of an example of a device for carrying out the method of the present invention, FIG. 2 is a schematic perspective view of the main parts of FIG. 1, and FIG. 3 is a main part of an example of a sliver spot detection device. The perspective view, FIG. 4, shows an electrical circuit block diagram of an apparatus for carrying out the method of the present invention. 1... Main body draft section 6... Modified draft section 6... Sliver spot detection device 8... Magnetic sensor 19... Filter circuit 20 .25... Abnormality detection circuit 21.
... Addition calculation circuit 22 ... Comparison circuit 24 ... Modified draft motor drive circuit (19)

Claims (5)

【特許請求の範囲】[Claims] (1)本体ドラフト部の上流側に配置した修正ドラフト
部と更に該修正ドラフト部の上流側に配置したスライバ
ー斑を検出する検出装置とを具えた線条機でスライバー
斑の制御をするに際し、1本又は2本に群分けした供給
スライバー毎に該スライバー斑を検出し、この検出4.
tが予め定めた規定値を越えると機台を停止せしめると
共に一方各検出値が許容範囲内であればこれらを加算し
た供給スライバー全体の測定値と予め定めた標準供給ス
ライバー設定値とを比較し、この比較値が予め定めた規
定値を逸脱すると機台を停止せしめると共に一方比較値
が許容範囲内であればこの比較した偏差信号を修正ドラ
フト部への作動指令信号となしてスライバー斑を制御す
るようにしたことを特徴とする線条機におけるスライバ
ー斑制御方法。
(1) When controlling sliver mottling with a filament machine equipped with a modified draft part disposed upstream of the main body draft part and a detection device for detecting sliver mottling disposed upstream of the modified draft part, 4. Detecting the sliver irregularity for each supplied sliver divided into one or two groups;
If t exceeds a predetermined value, the machine is stopped, and if each detected value is within the allowable range, the measured value of the entire supply sliver obtained by adding these values is compared with the predetermined standard supply sliver setting value. If this comparison value deviates from a predetermined standard value, the machine is stopped, and if the comparison value is within the allowable range, this comparison deviation signal is used as an operation command signal to the correction draft section to control sliver irregularity. A method for controlling sliver mottling in a striation machine, characterized in that:
(2) 本体ドラフト部の上流側に修正ドラフト装置を
設けると共に更に該修正ドラフト装置の上流側に1本又
は2本に群分けした供給スライバー毎にスライバー斑検
出装置を設け、該検出装置をフィルター回路を介し一方
は予め定めた規定値を越えると機台を停止せしめる異常
検出回路に接続し、他方は該谷検出装置からの検出値を
加算する演算回路に接続し、更に該加算演算回路を予め
定めた標準供給スライバー設定値と比較する比較回路に
接続すると共に該比較回路を、一方は予め定めた規定値
を逸脱すると機台を停止せしめる異常検出回路に接続し
他方はその偏差信号によって作動する修正ドラフト装置
の駆動回路に接続して構成したことを特徴とする線条機
におけるスライバー斑制御装置。
(2) A modified draft device is provided on the upstream side of the draft section of the main body, and a sliver spot detection device is also provided for each of the supplied slivers grouped into one or two groups on the upstream side of the modified draft device, and the detection device is connected to a filter. Through a circuit, one side is connected to an abnormality detection circuit that stops the machine when a predetermined value is exceeded, and the other side is connected to an arithmetic circuit that adds the detected value from the valley detection device, and further connects the addition arithmetic circuit. One side is connected to a comparison circuit that compares it with a predetermined standard supply sliver setting value, and one side is connected to an abnormality detection circuit that stops the machine if it deviates from the predetermined value, and the other side is activated by the deviation signal. A sliver unevenness control device for a sliver forming machine, characterized in that it is connected to a drive circuit of a modified drafting device.
(3) 修正ドラフト部は一定の速度で回転するプレド
ラフトフロントローラと、該フロントロ−ラに対し可変
速モータを動源として差動歯車機構を介]、て回転速度
が変速されるプレドラフトバックローラとより成る特許
請求範囲第2項記載の線条機に於けるスライバー斑制御
装置。
(3) The modified draft section includes a pre-draft front roller that rotates at a constant speed, and a pre-draft back whose rotational speed is changed by a differential gear mechanism using a variable speed motor as a power source for the front roller. A sliver unevenness control device in a wire forming machine according to claim 2, comprising a roller.
(4) スライバー斑横出装置はスライバーを囲む#I
を有するローラと該溝部に嵌合してスライバーの容lj
+変動に16にて変位する抑圧ローラとより成るメジャ
ーリングローラと、核メジャナリングローラの押圧0−
2の変位を感知する磁気センサーとより構成したことを
特徴とする特許請求範囲第2項記載の線条機に於けるス
ライバー斑制御装置。
(4) The sliver spot lateral extraction device surrounds the sliver #I
A roller having a sliver capacity lj is fitted into the groove.
A measuring roller consisting of a suppression roller that is displaced at +16 due to fluctuations, and a pressing force of the core measuring roller of 0-
3. A sliver unevenness control device in a wire forming machine according to claim 2, characterized in that the device comprises a magnetic sensor that detects the displacement of the sliver.
(5) フィルター回路は遮断周波数0.3h以下のロ
ーパスフィルターより成る特許請求範囲第2項記載の線
条機に於けるスライバー斑制御装置。
(5) A sliver unevenness control device in a wire forming machine according to claim 2, wherein the filter circuit comprises a low-pass filter having a cut-off frequency of 0.3 h or less.
JP58197988A 1983-10-21 1983-10-21 Control of sliver unevenness in drawing frame and its device Granted JPS6094626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58197988A JPS6094626A (en) 1983-10-21 1983-10-21 Control of sliver unevenness in drawing frame and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58197988A JPS6094626A (en) 1983-10-21 1983-10-21 Control of sliver unevenness in drawing frame and its device

Publications (2)

Publication Number Publication Date
JPS6094626A true JPS6094626A (en) 1985-05-27
JPH0227448B2 JPH0227448B2 (en) 1990-06-18

Family

ID=16383638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58197988A Granted JPS6094626A (en) 1983-10-21 1983-10-21 Control of sliver unevenness in drawing frame and its device

Country Status (1)

Country Link
JP (1) JPS6094626A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018985A1 (en) * 1996-10-30 1998-05-07 Zellweger Luwa Ag Inflow sensor for a drawing equipment
US6058570A (en) * 1997-10-21 2000-05-09 Zellweger Luwa Ag Inflow sensor for a drawing equipment
JP2007537468A (en) * 2004-05-13 2007-12-20 アイシー・ベルリン・ブリレンプロドゥクツィオーンス・ゲーエムベーハー Glasses
WO2020074227A1 (en) * 2018-10-12 2020-04-16 TRüTZSCHLER GMBH & CO. KG Roller for a sliver transport apparatus and sliver transport apparatus equipped therewith

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19908371A1 (en) * 1999-02-26 2000-08-31 Truetzschler Gmbh & Co Kg Sliver drawing apparatus takes slivers from cans into straight and parallel paths through sliver thickness monitor to drawing unit giving high production speeds without fiber damage
DE102005023992A1 (en) * 2005-05-20 2006-11-23 TRüTZSCHLER GMBH & CO. KG Device on a spinning preparation machine, e.g. Carding, carding, track, combing machine or the like, for determining the mass and / or mass variations of a fiber material, e.g. at least one sliver, non-woven fabric or the like., Of cotton, chemical fibers o. The like.
DE102005033180B4 (en) * 2005-07-13 2020-03-12 Trützschler GmbH & Co Kommanditgesellschaft Device for detecting a parameter on a plurality of fiber bands fed to a drafting system of a spinning machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998018985A1 (en) * 1996-10-30 1998-05-07 Zellweger Luwa Ag Inflow sensor for a drawing equipment
US6058570A (en) * 1997-10-21 2000-05-09 Zellweger Luwa Ag Inflow sensor for a drawing equipment
JP2007537468A (en) * 2004-05-13 2007-12-20 アイシー・ベルリン・ブリレンプロドゥクツィオーンス・ゲーエムベーハー Glasses
JP4727657B2 (en) * 2004-05-13 2011-07-20 アイシー・ベルリン・ブリレンプロドゥクツィオーンス・ゲーエムベーハー Glasses
WO2020074227A1 (en) * 2018-10-12 2020-04-16 TRüTZSCHLER GMBH & CO. KG Roller for a sliver transport apparatus and sliver transport apparatus equipped therewith

Also Published As

Publication number Publication date
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