JPH0334087U - - Google Patents
Info
- Publication number
- JPH0334087U JPH0334087U JP9532489U JP9532489U JPH0334087U JP H0334087 U JPH0334087 U JP H0334087U JP 9532489 U JP9532489 U JP 9532489U JP 9532489 U JP9532489 U JP 9532489U JP H0334087 U JPH0334087 U JP H0334087U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- weft
- circuit
- loom
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims description 13
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Looms (AREA)
Description
第１図は請求項１記載の本考案の一実施例を示
す織機の平面図及び緯糸検知装置のブロツク線図
、第２図は第１図に示した実施例の作用説明用の
グラフで、同図イは時間対増巾信号、同図ロは時
間対タイミング信号、同図ハは時間対積分値信号
のグラフ、第３図は第１図に示した実施例におけ
る織機の作動速度に対する適正しきい値の関係を
示すグラフ、第４図は請求項２記載の本考案の他
の実施例を示す第１図と同様な平面図及びブロツ
ク線図、第５図は第４図に示した実施例における
織機の作動速度に対する増巾率の関係を示すグラ
フ、第６図は織機及び緯糸検知装置の従来例を示
す平面図及びブロツク図線図、第７図はタイミン
グ信号発生期間を示す説明図、第８図は第６図に
示した従来の緯糸検知装置の作用説明用のグラフ
で、同図イは時間対増巾信号、同図ロは時間対タ
イミング信号、同図ハは時間対積分値信号のグラ
フである。
２……緯糸、３……ジエツトノズル、４……緯
糸、５……おさ、６……織前、７……緯糸検出器
、９……インバータ、１２……増巾回路、１３…
…ＡＮＤ回路、１４……積分回路、１５，１５′
，１５″……比較回路、１６，１８……糸種設定
器、１７……しきい値信号設定回路、１９……増
巾率設定回路、Ａ……しきい値制御回路、Ｂ……
増巾率制御回路、Ｗ……織布、ｋ……検出信号、
ｋ′……増巾信号、ｔ……タイミング信号、ｒ…
…論理積信号、ａ……積分値信号、ｍ……しきい
値、Ｙ……糸信号。
FIG. 1 is a plan view of a loom and a block diagram of a weft detection device showing an embodiment of the present invention as claimed in claim 1, and FIG. 2 is a graph for explaining the operation of the embodiment shown in FIG. Figure A is a graph of the width increase signal versus time, B is a graph of the timing signal versus time, C is a graph of the integral value signal versus time, and Figure 3 is a graph of the operating speed of the loom in the embodiment shown in Figure 1. A graph showing the relationship between threshold values, FIG. 4 is a plan view and block diagram similar to FIG. 1 showing another embodiment of the present invention as claimed in claim 2, and FIG. A graph showing the relationship between the width increase rate and the operating speed of the loom in the example, FIG. 6 is a plan view and a block diagram showing a conventional example of the loom and weft detection device, and FIG. 7 is an explanation showing the timing signal generation period. Figures 8 and 8 are graphs for explaining the operation of the conventional weft detection device shown in Figure 6, where A is the time vs. width signal, B is the time vs. timing signal, and C is the time vs. It is a graph of an integral value signal. 2... Weft, 3... Jet nozzle, 4... Weft, 5... Reed, 6... Weave, 7... Weft detector, 9... Inverter, 12... Width multiplication circuit, 13...
...AND circuit, 14...Integrator circuit, 15, 15'
, 15''... Comparison circuit, 16, 18... Yarn type setting device, 17... Threshold signal setting circuit, 19... Gaining rate setting circuit, A... Threshold control circuit, B...
Amplification rate control circuit, W...woven fabric, k...detection signal,
k′...Width increase signal, t...Timing signal, r...
...Logic product signal, a...integral value signal, m...threshold value, Y...thread signal.
Claims (1)
増巾回路と、増巾した信号と予め定めた検出期間
に発するタイミング信号との論理積回路とを備え
、該論理積回路から出力される論理積信号を積分
してその積分値信号を比較回路においてしきい値
と比較することにより緯糸の有無を検知するよう
にした織機の緯糸検知装置において、前記しきい
値を織機の作動速度に基づいて出力するしきい値
制御回路を設けたことを特徴とする織機の緯糸検
知装置。 (2) 緯糸検出器で検出した検出信号を増巾する
増巾回路と、増巾した信号と予め定めた検出期間
に発するタイミング信号との論理積回路とを備え
、該論理積回路から出力される論理積信号を積分
してその積分値信号をしきい値と比較することに
より緯糸の有無を検知するようにした織機の緯糸
検知装置において、前記増巾回路の増巾率を織機
の作動速度に基づいて出力する増巾率制御回路を
設けたことを特徴とする織機の緯糸検知装置。[Scope of Claim for Utility Model Registration] (1) Comprising an amplifying circuit that amplifies the detection signal detected by the weft detector, and an AND circuit of the amplified signal and a timing signal that is emitted during a predetermined detection period. In the weft detection device for a loom, the presence or absence of a weft is detected by integrating the AND signal output from the AND circuit and comparing the integrated value signal with a threshold value in a comparison circuit. A weft detection device for a loom, comprising a threshold control circuit that outputs a threshold value based on the operating speed of the loom. (2) It includes an amplifying circuit that amplifies the detection signal detected by the weft detector, and an AND circuit of the amplified signal and a timing signal issued during a predetermined detection period, and the output from the AND circuit is provided. In a weft detection device for a loom, the presence or absence of a weft is detected by integrating a logical product signal and comparing the integrated value signal with a threshold value. 1. A weft detection device for a loom, characterized in that a weft detection device for a loom is provided with an amplification rate control circuit that outputs an output based on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9532489U JPH0334087U (en) | 1989-08-15 | 1989-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9532489U JPH0334087U (en) | 1989-08-15 | 1989-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0334087U true JPH0334087U (en) | 1991-04-03 |
Family
ID=31644593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9532489U Pending JPH0334087U (en) | 1989-08-15 | 1989-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0334087U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056342A (en) * | 1983-09-08 | 1985-04-01 | Anelva Corp | Ion beam generating apparatus |
| JPS62125052A (en) * | 1985-11-20 | 1987-06-06 | 津田駒工業株式会社 | Method and apparatus for monitoring wefting state of loom |
-
1989
- 1989-08-15 JP JP9532489U patent/JPH0334087U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056342A (en) * | 1983-09-08 | 1985-04-01 | Anelva Corp | Ion beam generating apparatus |
| JPS62125052A (en) * | 1985-11-20 | 1987-06-06 | 津田駒工業株式会社 | Method and apparatus for monitoring wefting state of loom |
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