JPS6117972Y2 - - Google Patents
Info
- Publication number
- JPS6117972Y2 JPS6117972Y2 JP17423880U JP17423880U JPS6117972Y2 JP S6117972 Y2 JPS6117972 Y2 JP S6117972Y2 JP 17423880 U JP17423880 U JP 17423880U JP 17423880 U JP17423880 U JP 17423880U JP S6117972 Y2 JPS6117972 Y2 JP S6117972Y2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- piezoelectric element
- snail
- thread
- snail wire
- 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.)
- Expired
Links
- 241000237858 Gastropoda Species 0.000 claims description 35
- 238000001514 detection method Methods 0.000 claims description 13
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000007378 ring spinning Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
Description
【考案の詳細な説明】
本考案は、リング精紡機、リング撚糸装置等の
糸案内部におけるスネールワイヤの構成に関し、
特にスネールワイヤが走行通過すると糸条と接触
して固有の振動を起し、該固有振動を検知して走
行糸条の有無を検出する様なスネールワイヤにお
いて、これらの検知を長期にわたつて安定して得
られる様に構成したものである。[Detailed description of the invention] The present invention relates to the configuration of a snail wire in a yarn guide section of a ring spinning machine, a ring twisting device, etc.
In particular, when the snail wire runs and passes, it comes into contact with the thread and generates a unique vibration, and this natural vibration is detected to detect the presence or absence of the running thread. It is constructed so that it can be obtained by
本考案者らはリング精紡機の糸切れ検出手段に
ついて各種の方法並びに手段を提案している。こ
れらの糸切れ検出手段は、ラペツトに取り付ける
スネールワイヤが紡出糸条と接触することによつ
て固有振動を発生していることに着目し、この固
有振動をスネールワイヤの一部に取り付けた圧電
素子によつて検出するものである。即ち第1図
は、糸切れ検出手段を備えたリング精紡機の1錘
分を示す側面略図で、フロントボツトムローラ1
およびトツプローラ1aによつて繰り出されるフ
リースは、施撚されて糸Yとなり、ラペツトバー
4に取付けたラペツト2に支持されたスネールワ
イヤ3を通つてボビン9に巻き取られる。また巻
き取りに当つては、ボビン9を取り囲み且つ昇降
するリング6に遊嵌されたトラベラー8を介して
巻かれ、ボビン9の回転に追従してトラベラー8
が旋回しながら糸を旋撚して管糸10が形成され
る。尚7はリングレール、5はバルーンコントロ
ールリングである。この様な紡錘において、前記
糸切れ検出センサーとしては、第4図に11とし
て例示する様に絶縁材で形成した筒体14内に弾
性材15を介してスネールワイヤ3が挿着され、
該ワイヤ3の後端側に圧電素子16がが貼着され
る。また該圧電素子の取り付け並びに検知を確実
にするため、ワイヤ3の後端側は扁平部3aと
し、その端縁部は更に薄段部3bを形成して圧電
素子16のリード線17の取り出しを容易にして
いる。 The present inventors have proposed various methods and means for yarn breakage detection means for ring spinning machines. These yarn breakage detection means focus on the fact that the snail wire attached to the rappet generates natural vibrations when it comes into contact with the spun yarn, and use a piezoelectric device attached to a part of the snail wire to generate natural vibrations. It is detected by an element. That is, FIG. 1 is a schematic side view showing one spindle of a ring spinning machine equipped with a thread breakage detection means, in which the front bottom roller 1 is
The fleece fed out by the top roller 1a is twisted into yarn Y, which is wound onto a bobbin 9 through a snail wire 3 supported by a lappet 2 attached to a lappet bar 4. Further, during winding, the winding is performed via a traveler 8 that is loosely fitted into a ring 6 that surrounds the bobbin 9 and moves up and down, and the traveler 8 follows the rotation of the bobbin 9.
The tube yarn 10 is formed by twisting the yarn while rotating. Note that 7 is a ring rail and 5 is a balloon control ring. In such a spindle, as the yarn breakage detection sensor, the snail wire 3 is inserted into a cylinder 14 made of an insulating material via an elastic material 15, as illustrated as 11 in FIG.
A piezoelectric element 16 is attached to the rear end side of the wire 3. In order to ensure the attachment and detection of the piezoelectric element, the rear end side of the wire 3 is made into a flat part 3a, and the edge thereof is further formed with a thin step part 3b to allow the lead wire 17 of the piezoelectric element 16 to be taken out. It's easy.
この様に構成した糸切れ検出用センサー11を
ラペツト2に取り付けに当つては、第3図の様に
ラペツト2の下部に摺動挿段部2aを形成して、
挿設し、適当な位置を保持する様に構成され、圧
電素子16のリード線17は、ラペツトバー4と
ラペツト2の取り付け面部に絶縁的に配設した導
電板12を介して検出測定装置に連接され、導電
板12としてはプリント配線板であることが好適
である。尚13は絶縁板であつて前記リード線1
7は、ラペツト2の取付部及び絶縁板13を貫通
して導電板1に接続される。一方検出手段として
は、第2図に略示する様に圧電素子16からのリ
ード線17が2本(アースを利用する場合は1
本)が帯域増幅器18に接続されて、圧電素子1
6からの信号を、スネールワイヤの固有振動周波
数を選別し、次いでこれを増幅器19によつて容
易に判別可能なレベルまで増幅し、整流平滑器2
0によつて交流信号を直流信号に変換している。
そして電圧比較器21によつて確実動作の領域を
判別して論理信号出力22を出す様に構成されて
いる。又これらの信号取り出しに当つては、スネ
ールワイヤ3に取り付ける圧電素子16を鋭敏に
作動させるため、第5図及び第6図に例示する様
に、前記扁平部3aに円弧状或は細溝形の溝3c
を形成して該扁平部3aの一部に薄片部を形成す
ることが推奨されると共に、該薄片部は第4図の
ごとくスネールワイヤ3に対して走行糸条が接触
する進入側、即ち図示例では上面側に形成されて
いる。またこの様にして配設される圧電素子16
としては、スネールワイヤ3の前記扁平部3aに
沿う様な矩形薄片で構成されると共に該扁平部3
a面に貼着され、その後端側に端子を形成してリ
ード線を夫々はんだ付けしている。 When attaching the thread breakage detection sensor 11 configured in this way to the rappet 2, a sliding step 2a is formed at the bottom of the rappet 2 as shown in FIG.
The lead wire 17 of the piezoelectric element 16 is connected to a detection and measurement device via a conductive plate 12 that is insulatively disposed on the mounting surface of the rappet bar 4 and rappet 2. The conductive plate 12 is preferably a printed wiring board. Note that 13 is an insulating plate that connects the lead wire 1.
7 passes through the mounting portion of the rappet 2 and the insulating plate 13 and is connected to the conductive plate 1. On the other hand, as a detection means, as shown schematically in FIG.
the piezoelectric element 1 ) is connected to the bandpass amplifier 18 .
The signal from 6 is selected by the natural vibration frequency of the snail wire, and then amplified by an amplifier 19 to a level that can be easily determined.
0 converts an AC signal into a DC signal.
The voltage comparator 21 is configured to determine a region of reliable operation and output a logic signal output 22. In addition, when taking out these signals, in order to sensitively operate the piezoelectric element 16 attached to the snail wire 3, an arc-shaped or thin groove-shaped groove is formed in the flat part 3a, as illustrated in FIGS. 5 and 6. Groove 3c
It is recommended to form a thin piece part on a part of the flat part 3a, and the thin piece part is formed on the entrance side where the running yarn comes into contact with the snail wire 3 as shown in FIG. In the illustrated example, it is formed on the upper surface side. Moreover, the piezoelectric element 16 arranged in this way
The snail wire 3 is made of a rectangular thin piece along the flat part 3a of the snail wire 3, and the flat part 3a of the snail wire 3 is
It is attached to the A side, terminals are formed on the rear end side, and lead wires are soldered to the respective terminals.
ところで圧電素子16はロツシエル塩やチタン
酸バリウムの様な極めて脆い結晶物で形成されて
いるので、これを取り付けたスネールワイヤの取
り扱いについては細心の注意が必要である。しか
しながら十分な注意を払つていても多数のうちに
は圧電素子16が切損するものが発生し、これら
の錘を探索するのに手数を要している。これらか
ら切損の原因を追究すると共にその対策が要望さ
れる。本考案はこれらについて鋭意研究の結果到
達したもので、前記スネールワイヤに取り付ける
圧導素子の取り付け手段を変更して、圧電素子の
切損を防止し、長期に安定して使用し得る様な糸
切れ検出スネールワイヤを提供しようとするもの
である。しかしてこの様な本考案とは、該ワイヤ
の糸条案内部分と反対側部に取り付ける圧電素子
を、ワイヤの軸方向に沿つた矩形の薄片とすると
共にその取り付けを該ワイヤに対して走行する糸
条の進入方向と反対側に取り付けて構成したもの
である。 By the way, since the piezoelectric element 16 is made of extremely brittle crystalline material such as Rothsiel's salt or barium titanate, great care must be taken when handling the snail wire to which it is attached. However, even if sufficient care is taken, some of the piezoelectric elements 16 may be damaged, and it takes time and effort to search for these weights. From these facts, it is necessary to investigate the cause of the breakage and to take countermeasures against it. The present invention was arrived at as a result of intensive research on these issues, and by changing the method for attaching the piezoelectric element to the snail wire, it is possible to prevent the piezoelectric element from breaking and to create a thread that can be used stably over a long period of time. This paper attempts to provide a break detection snail wire. However, in this invention, the piezoelectric element attached to the opposite side of the wire to the yarn guide portion is a rectangular thin piece along the axial direction of the wire, and the piezoelectric element is attached to the wire by running it against the wire. It is constructed by being attached on the opposite side to the direction in which the yarn enters.
以下図面に基づいて本考案を詳細に説明するが
図は本考案の具体的な実施の一例を示すもので本
考案はこれらの図示例に限定されず、他の形状の
スネールワイヤに適用したり或は構成部品の形状
を変更しても同様に実施することができる。即ち
ラペツト2に取り付けられるセンサー11は前第
4図に説明したごとくスネールワイヤ3が筒体1
4内に弾性材15を介して挿設されており、かつ
スネールワイヤ3に作用する走行糸条は該スネー
ルワイヤ3を矢印A方向に付勢するように摺擦し
ている。また糸条がスネールワイヤ3に搦まつた
ときも同方向の引張力が作用し、更には粗糸ボビ
ンや精紡コツプを落下させてスネールワイヤ3に
同じ矢印A方向の衝撃を与えることがある。そし
てこの様な作動並びに衝撃は、第7図に示す様に
スネールワイヤ3の前記扁平部3aを矢印線Bで
示す様に曲げることになり、特に前記薄片部が薄
く形成される程曲げも大きくなる。更に圧電素子
16の端子接合部を他の軟弾性材で埋設して構成
するものにおいてはこの様な現象が多く発生し易
い。一方圧電素子16はスネールワイヤの扁平部
3aに沿う様な矩形薄片で構成されると共に接合
されているため第7図において16aで示す様
に、扁平部の曲げ弾性に応じできず切損すること
が分つた。そこで本考案者は該圧電素子の切損に
ついて検討したところ、前第7図の様な伸張に対
して弱く、圧縮については相当の抵抗性があるこ
とを知つた。その為にはスネールワイヤ3に貼着
する圧電素子16を前記曲げ線Bの内側面、即ち
スネールワイヤの糸条進入方向と反対側(下面
側)に取り付ければ切損が防止できることに着目
したものである。第8図は本考案を適用したスネ
ールワイヤを利用したセンサーを示す。即ちスネ
ールワイヤ3及び筒体14は同様のものを利用
し、圧電素子16を扁平部3aの下面側に貼着し
て構成するものである。尚図では、該扁平部3a
の形成に当つて扁平減肉部を下面側に形成したも
のを示したが、第4図のごとく従前の扁平部3a
の下面に貼着しても同様に実施できる。しかしな
がら前記した様な溝3cを形成するに当つては、
圧電素子取付面と反対面に形成し、該溝3cとし
ては、第9図の様に円弧溝を複数としたり、或は
第10図の様に角形溝3cとしてもよい。この様
に構成した本考案スネールワイヤでは、固有振動
の検出については従前のものと殆んど同様に鋭敏
に検出することができると共に前記曲げに対して
圧電素子が切損することが極めて少なくなり、長
期にわたつて安心して利用できる糸切れ検出スネ
ールワイヤとすることがでかきた。 The present invention will be explained in detail below based on the drawings, but the drawings show one example of the concrete implementation of the present invention, and the present invention is not limited to these illustrated examples, and may be applied to snail wires of other shapes. Alternatively, the same implementation can be achieved by changing the shapes of the component parts. That is, the sensor 11 attached to the lappet 2 has a snail wire 3 connected to the cylinder 1 as explained in FIG.
The running yarn is inserted into the snail wire 4 through an elastic member 15 and acts on the snail wire 3, and the snail wire 3 is rubbed so as to be biased in the direction of the arrow A. Furthermore, when the yarn is wrapped around the snail wire 3, a tensile force in the same direction acts, and the roving bobbin or spinning tip may be dropped, giving the snail wire 3 an impact in the same direction of arrow A. . Such operation and impact bend the flat part 3a of the snail wire 3 as shown by the arrow line B, as shown in FIG. Become. Furthermore, such a phenomenon is more likely to occur in a structure in which the terminal joint portion of the piezoelectric element 16 is buried in another soft elastic material. On the other hand, since the piezoelectric element 16 is composed of a rectangular thin piece along the flat part 3a of the snail wire and is bonded, it cannot respond to the bending elasticity of the flat part and may break, as shown by 16a in FIG. Divided. The inventor of the present invention investigated breakage of the piezoelectric element and found that it is weak against expansion as shown in FIG. 7, but has considerable resistance to compression. For this purpose, we focused on the fact that breakage can be prevented by attaching the piezoelectric element 16 to the snail wire 3 on the inner surface of the bending line B, that is, on the opposite side (lower surface side) to the direction of yarn entry of the snail wire. It is. FIG. 8 shows a sensor using snail wire to which the present invention is applied. That is, the snail wire 3 and the cylinder 14 are the same, and the piezoelectric element 16 is attached to the lower surface of the flat part 3a. In the figure, the flat portion 3a
In forming the flat part 3a, a flat thinned part is formed on the lower surface side, but as shown in FIG.
This can be done in the same way by pasting it on the bottom surface of the . However, when forming the groove 3c as described above,
The grooves 3c may be formed on the surface opposite to the piezoelectric element mounting surface, and may be a plurality of arcuate grooves as shown in FIG. 9, or may be rectangular grooves 3c as shown in FIG. With the snail wire of the present invention configured in this way, the natural vibration can be detected as sensitively as the conventional one, and the piezoelectric element is extremely less likely to break due to the bending. We were able to create a thread breakage detection snail wire that can be used safely for a long period of time.
第1図はリング精紡機の糸切れ検知手段を説明
する側面略図、第2図は検出手段の説明略図、第
3図は第1図の要部拡大図で一部を破断して示
す。第4図は第3図の一部を構成するセンサーの
側面図で一部を破断して示す。第5図及び第6図
はスネールワイヤ扁平部の他の構成例を示す側面
図、第7図は作用説明図、第8図は本考案を適用
したセンサーの一部破断側面図、第9図及び第1
0図は第8図における一部の他の構成例を示す側
面図である。
1……フロントボツトムローラ、2……ラペツ
ト、3……スネールワイヤ、3a……扁平部、4
……ラペツトバー、5……バルーンコントロール
リング、6……リング、7……リングレール、8
……トラベラー、9……ボビン、10……パツケ
ージ、11……センサー、12……導電板、13
……絶縁板、14……筒体、15……挿設弾性
材、16……圧電素子、17……リード線、18
……帯域増幅器、19……増幅器、20……平滑
器、21……比較器、22……論理信号出力。
FIG. 1 is a schematic side view illustrating a thread breakage detection means of a ring spinning machine, FIG. 2 is a schematic diagram illustrating the detection means, and FIG. 3 is an enlarged view of the main part of FIG. 1, with a part cut away. FIG. 4 is a side view of a sensor forming a part of FIG. 3, with a portion cut away. 5 and 6 are side views showing other configuration examples of the flat part of the snail wire, FIG. 7 is an explanatory view of the operation, FIG. 8 is a partially cutaway side view of a sensor to which the present invention is applied, and FIG. 9 and the first
FIG. 0 is a side view showing a part of another configuration example in FIG. 8. 1... Front bottom roller, 2... Rappet, 3... Snail wire, 3a... Flat part, 4
... Rappet bar, 5 ... Balloon control ring, 6 ... Ring, 7 ... Ring rail, 8
... Traveler, 9 ... Bobbin, 10 ... Package, 11 ... Sensor, 12 ... Conductive plate, 13
... Insulating plate, 14 ... Cylindrical body, 15 ... Insert elastic material, 16 ... Piezoelectric element, 17 ... Lead wire, 18
... Bandwidth amplifier, 19 ... Amplifier, 20 ... Smoother, 21 ... Comparator, 22 ... Logical signal output.
Claims (1)
接触してスネールワイヤに発生する固有振動を検
知して走行糸条の有無を検出するスネールワイヤ
であつて、該ワイヤの糸条案内部分と反対側部に
取り付ける圧電素子を、ワイヤの軸方向に沿つた
矩形の薄片とすると共にその取り付けを該ワイヤ
に対して走行する糸条の進入方向と反対側に取り
付けて構成したことを特徴とする糸切れ検出スネ
ールワイヤ。 A snail wire that is arranged so as to be in contact with a running thread, and detects the presence or absence of a running thread by detecting the natural vibration generated in the snail wire in contact with the thread, and the thread guide of the wire. The piezoelectric element attached to the opposite side of the wire is a rectangular thin piece along the axial direction of the wire, and the piezoelectric element is attached to the side opposite to the direction of entry of the yarn running with respect to the wire. Thread breakage detection snail wire.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17423880U JPS6117972Y2 (en) | 1980-12-04 | 1980-12-04 | |
PCT/JP1981/000036 WO1981002433A1 (en) | 1980-02-27 | 1981-02-26 | Thread breakage detecting snail wire for ring frame |
DE8181900499T DE3168418D1 (en) | 1980-02-27 | 1981-02-26 | Thread breakage detecting snail wire for ring frame |
US06/296,424 US4393647A (en) | 1980-02-27 | 1981-02-26 | Snail wire arrangement for yarn breakage detection in ring frames |
EP81900499A EP0046810B1 (en) | 1980-02-27 | 1981-02-26 | Thread breakage detecting snail wire for ring frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17423880U JPS6117972Y2 (en) | 1980-12-04 | 1980-12-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5796145U JPS5796145U (en) | 1982-06-12 |
JPS6117972Y2 true JPS6117972Y2 (en) | 1986-05-31 |
Family
ID=29532283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17423880U Expired JPS6117972Y2 (en) | 1980-02-27 | 1980-12-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6117972Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9900792D0 (en) * | 1999-03-03 | 1999-03-03 | Iro Patent Ag | Method for monitoring run / stop conditions of a yarn |
-
1980
- 1980-12-04 JP JP17423880U patent/JPS6117972Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5796145U (en) | 1982-06-12 |
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