JPS62106981U - - Google Patents
Info
- Publication number
- JPS62106981U JPS62106981U JP20014285U JP20014285U JPS62106981U JP S62106981 U JPS62106981 U JP S62106981U JP 20014285 U JP20014285 U JP 20014285U JP 20014285 U JP20014285 U JP 20014285U JP S62106981 U JPS62106981 U JP S62106981U
- Authority
- JP
- Japan
- Prior art keywords
- dropper
- contacts
- signal
- resistor
- pair
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
Landscapes
- Looms (AREA)
Description
第１図はドロツパ装置の構成を示した断面図、
第２図は本考案のブロツク図、第３図ａはその直
流等価回路、第３図ｂはその交流等価回路、第４
図は本考案の実施例を示した回路図である。
１……ドロツパ装置、２……ドロツパバー、３
，４……ドロツパ接点、５……絶縁体、８……た
て糸切れ検知装置、１１……交流電源、１１ａ…
…高周波発振器、１１ｂ……高周波重畳回路、１
４……ＨＰＦ、１５……ＬＰＦ、１６……異常検
出器、１６ａ……検波回路、１６ｂ……バツフア
アンプ、１７……糸切れ検出器。
Figure 1 is a sectional view showing the configuration of the dropper device;
Figure 2 is a block diagram of the present invention, Figure 3a is its DC equivalent circuit, Figure 3b is its AC equivalent circuit, and Figure 4
The figure is a circuit diagram showing an embodiment of the present invention. 1...Dropper device, 2...Dropper bar, 3
, 4...Dropper contact, 5...Insulator, 8...Warp yarn breakage detection device, 11...AC power supply, 11a...
...High frequency oscillator, 11b...High frequency superimposition circuit, 1
4...HPF, 15...LPF, 16...abnormality detector, 16a...detection circuit, 16b...buffer amplifier, 17...thread breakage detector.
Claims (1)
ドロツパバーと、たて糸により支持され糸切れ時
に落下して上記一対のドロツパ接点に接触して両
ドロツパ接点間で直流信号を導通可能とするドロ
ツパピンと、上記ドロツパ接点の一端に接続され
た抵抗器と、上記抵抗器を介して上記ドロツパ接
点間に直流信号を供給する直流電源と、上記抵抗
器を介して上記ドロツパ接点間に交流信号を重畳
的に印加する交流電源と、上記ドロツパ接点の一
端と上記抵抗器との接続点に接続され上記交流信
号のレベルを検出する検出器と、上記ドロツパ接
点の一端と上記抵抗器との接続点に接続され上記
直流信号のレベルを検出する糸切れ検出器とを具
備することを特徴とするたて糸切れ検知装置。 (2) 上記交流信号の周波数は、上記一対のドロ
ツパ接点間のインピーダンスが交流的に十分小と
なる値に設定されていることを特徴とする実用新
案登録請求の範囲第１項記載のたて糸切れ検知装
置。[Scope of Claim for Utility Model Registration] (1) A dropper bar including a pair of dropper contacts via an insulator, supported by the warp yarns, which falls when the yarn breaks, contacts the pair of dropper contacts, and generates a direct current between both dropper contacts. a dropper pin that enables signal conduction; a resistor connected to one end of the dropper contact; a DC power source that supplies a DC signal between the dropper contacts via the resistor; an AC power source that applies an AC signal in a superimposed manner between the contacts; a detector that is connected to a connection point between one end of the dropper contact and the resistor and detects the level of the AC signal; A warp yarn breakage detection device comprising: a yarn breakage detector connected to a connection point with a resistor to detect the level of the DC signal. (2) The frequency of the alternating current signal is set to a value such that the impedance between the pair of dropper contacts is sufficiently small in terms of alternating current. Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20014285U JPH031505Y2 (en) | 1985-12-26 | 1985-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20014285U JPH031505Y2 (en) | 1985-12-26 | 1985-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62106981U true JPS62106981U (en) | 1987-07-08 |
| JPH031505Y2 JPH031505Y2 (en) | 1991-01-17 |
Family
ID=31162380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20014285U Expired JPH031505Y2 (en) | 1985-12-26 | 1985-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031505Y2 (en) |
-
1985
- 1985-12-26 JP JP20014285U patent/JPH031505Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH031505Y2 (en) | 1991-01-17 |
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