CN103061033B - Computerized flat knitter shuttle selection detection device based on piezoresistive sensor - Google Patents
Computerized flat knitter shuttle selection detection device based on piezoresistive sensor Download PDFInfo
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- CN103061033B CN103061033B CN201210554454.4A CN201210554454A CN103061033B CN 103061033 B CN103061033 B CN 103061033B CN 201210554454 A CN201210554454 A CN 201210554454A CN 103061033 B CN103061033 B CN 103061033B
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- electromagnet
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- slide bar
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Abstract
The invention discloses a computerized flat knitter shuttle selection detection device based on a piezoresistive sensor. The device comprises an electromagnet, an electromagnet sliding rod, a connecting member, a shuttle selection member, a voltage converting circuit, an exclusive-OR gate and a single chip microcomputer, wherein the electromagnet sliding rod is connected to the electromagnet, the shuttle selection member is connected to the electromagnet sliding rod through the connecting member, the piezoresistive sensor is arranged at the lower portion of the electromagnet, a gasket is arranged on the lower portion of the piezoresistive sensor, the piezoresistive sensor and the voltage converting circuit are connected to the exclusive-OR gate, the exclusive-OR gate is connected to the single chip microcomputer, and the lower end of the electromagnet sliding rod penetrates into the electromagnet and presses the piezoresistive sensor under the condition that the electromagnet sliding rod is electrified and moves downwards. A sensing circuit is arranged in the piezoresistive sensor. The device can detect whether the computerized flat knitter shuttle selection detection device can work normally, and the device transmits alarm signals if the computerized flat knitter shuttle selection detection device does not work normally.
Description
Technical field
The present invention relates to a kind of Computerized flat knitting machine and select the whether normal checkout gear of working of shuttle device (falling order), specifically a kind of Computerized flat knitting machine based on piezoresistive transducer falls order checkout gear.
Background technology
Computerized flat knitting machine selects shuttle device to move by electromagnet.But the parts of this electromagnet action, because working space location comparison is narrow and small, environment for use is severe, easily because of the problem of mechanism driving problem or electromagnet itself, causes selecting shuttle device to be failure to actuate or crosses action.
Summary of the invention
The object of the invention is to design a kind of Computerized flat knitting machine based on piezoresistive transducer and fall order checkout gear.
What the present invention will solve is the problem of selecting shuttle device to be failure to actuate or excessively to move that order causes of falling of existing electromagnet action.
Technical scheme of the present invention is: it comprises electromagnet, electromagnet slide bar, connector, selects shuttle part, voltage conversion circuit, XOR gate and single-chip microcomputer, and electromagnet slide bar is connected with electromagnet, selects shuttle part to be connected with electromagnet slide bar by connector..The bottom of electromagnet is provided with piezoresistive transducer, and piezoresistive transducer bottom is provided with pad; Voltage conversion circuit, piezoresistive transducer are connected with XOR gate, and XOR gate is connected with single-chip microcomputer, under the lower shifting state of electromagnet slide bar energising, the bottom of electromagnet slide bar through electromagnet and under push down piezoresistive transducer.
Described voltage conversion circuit comprises the first operational amplifier, the second operational amplifier, the 3rd operational amplifier, trigger, resistance R 2, resistance R 5, the output of the first operational amplifier is connected with the input of the second operational amplifier by resistance R 2, the output of the second operational amplifier is connected with the input of the 3rd operational amplifier by resistance R 5, the output of the 3rd operational amplifier is connected with trigger, and trigger is connected with XOR gate.
In piezoresistive transducer, be provided with sensing circuit, this sensing circuit comprises four-operational amplifier, the 5th operational amplifier, the 6th operational amplifier, resistance R 10 and resistance R 11, the output of four-operational amplifier is connected with the positive input terminal of the 6th operational amplifier by resistance R 10, the output of the 5th operational amplifier is connected with the negative input end of the 6th operational amplifier by resistance R 11, and the output of the 6th operational amplifier is connected with XOR gate.
Advantage of the present invention is: can detect in time Computerized flat knitting machine and select the whether normal work of shuttle device (falling order), as alarm signal is just sent in irregular working.
Accompanying drawing explanation
Fig. 1 is the state of electromagnet slide bar in the time of electromagnetism Tie Tong+24V voltage.
Fig. 2 is the state of electromagnet slide bar in the time of electromagnetism Tie Tong-24V voltage.
Fig. 3 is-24V and+24V voltage transitions is the circuit diagram of 0-5V voltage.
Fig. 4 for-24V and+24V voltage transitions is 0-5V voltage data figure.
Fig. 5 is the circuit connection diagram of single-chip microcomputer.
Fig. 6 is the structural representation in front of the present invention.
The specific embodiment
Computerized flat knitting machine of the present invention falls order and adopts freeze mode electromagnet (Keep solenoid), and this freeze mode electromagnet uses permanent magnet, and its operation principle is similar to all straight-line electromagnet.After coil is energized, electromagnet slide bar moves to iron core, and finally stops at final position, and after dump, electromagnet slide bar still remains on the old place, if electromagnet slide bar is returned, must apply backward voltage (or electric current).
Below in conjunction with drawings and the specific embodiments, the present invention is further illustrated.
As shown in the figure, the present invention includes electromagnet 1, electromagnet slide bar 2, connector 3, select shuttle part 4, voltage conversion circuit, XOR gate and single-chip microcomputer U1, electromagnet slide bar 2 is connected with electromagnet 1, selects shuttle part 4 to be connected with electromagnet slide bar 2 by connector 3.Be provided with piezoresistive transducer 5 in the bottom of electromagnet 1, piezoresistive transducer 5 bottoms are provided with pad 6.Voltage conversion circuit, piezoresistive transducer 5 are connected with XOR gate, and XOR gate is connected with single-chip microcomputer U1, under the lower shifting state of electromagnet slide bar 2 energising, the bottom of electromagnet slide bar 2 through electromagnet and under push down piezoresistive transducer 5.
Described voltage conversion circuit comprises the first operational amplifier TL1, the second operational amplifier TL2, the 3rd operational amplifier TL3, trigger, resistance R 2, resistance R 5, the output of the first operational amplifier TL1 is connected with the input of the second operational amplifier TL2 by resistance R 2, the output of the second operational amplifier TL2 is connected with the input of the 3rd operational amplifier TL3 by resistance R 5, the output of the 3rd operational amplifier TL3 is connected with trigger, and trigger is connected with XOR gate.
In piezoresistive transducer 5, be provided with sensing circuit, this sensing circuit comprises four-operational amplifier TL4, the 5th operational amplifier TL5, the 6th operational amplifier TL6, resistance R 10 and resistance R 11, the output of four-operational amplifier TL5 is connected with the positive input terminal of the 6th operational amplifier TL6 by resistance R 10, the output of the 5th operational amplifier TL5 is connected with the negative input end of the 6th operational amplifier TL6 by resistance R 11, and the output of the 6th operational amplifier TL6 is connected with XOR gate.
Described voltage conversion circuit, for-24 to 24V voltage linears are become to 0-5V, is inputted 24V output 5V, and 0V exports 2.5V, and input-24V exports 0V.The function of 555 triggers in this circuit is: be actually a given comparative voltage Vcc, that Vcc selects here is 5V.When input voltage u < Vcc/3V, output high level, in the time of input voltage Vcc/3 < u < 2Vcc/3V, maintains original state constant, in the time that input voltage u is greater than 2Vcc/3V, and output low level.
The device that selects shuttle device to be formed by 16 electromagnet of the present invention.Totally two rows, 8 electromagnet of every row.
The model of each operational amplifier of the present invention is TL084.Trigger model is 555.XOR gate model is 74LS02.
On single-chip microcomputer, be connected with P2.3 mouth by P2.2 with display, if there is extremely, abnormal signal shows from display after single-chip microcomputer is processed, and report is which falls order unit and is out of order.
Under the lower shifting state of electromagnet slide bar 2 energising, the bottom of electromagnet slide bar 2 through electromagnet 1 and under push down piezoresistive transducer, piezoresistive transducer is output as low level 0.Under electromagnet slide bar 2 raised states, piezoresistive transducer 5 is output as high level 1.
Operation principle of the present invention is: in the time of electromagnetism Tie Tong+24V voltage, electromagnet slide bar 2 is in the state shown in Fig. 1, and piezoresistive transducer 5 is not pushed down by electromagnet slide bar 2, and piezoresistive transducer 5 is exported high level 1.Fall order working properly, XOR gate output normal signal 0.
In the time of electromagnetism Tie Tong+24V voltage, the state of electromagnet slide bar 2 as shown in Fig. 2, piezoresistive transducer 5 is pushed down by electromagnet slide bar 2, piezoresistive transducer 5 output low levels 0, fall order work undesired, XOR gate output alarm signal 1, after this alarm signal 1 is processed by single-chip microcomputer, being demonstrated by display is which selects shuttle part to report to the police.
In the time of electromagnetism Tie Tong-24V voltage, electromagnet slide bar 2 is in the state shown in Fig. 2, and piezoresistive transducer 5 is pushed down by electromagnet slide bar 2, piezoresistive transducer 5 output low levels 0.Fall order working properly, XOR gate output normal signal 0.
In the time of electromagnetism Tie Tong-24V voltage, electromagnet slide bar 2 is in the state shown in Fig. 1, piezoresistive transducer 5 is not pushed down by electromagnet slide bar 2, piezoresistive transducer 5 is exported high level 1, fall order work undesired, XOR gate output alarm signal 1, after this alarm signal 1 is processed by single-chip microcomputer, being demonstrated by display is which selects shuttle part to report to the police.
Above-mentioned type of alarm can be expressed by following table:
| Signal | 1（+24V） | 1（+24V） | 0（－24V） | 0（－24V） |
| Piezoresistive transducer | 1(high level) | 0(low level) | 1(high level) | 0(low level) |
| |
0 | 1 | 1 | 0 |
| State | Normally | Report to the police | Report to the police | Normally |
Claims (1)
1. the Computerized flat knitting machine based on piezoresistive transducer falls order checkout gear, comprise electromagnet, electromagnet slide bar, connector, select shuttle part, voltage conversion circuit, XOR gate and single-chip microcomputer, electromagnet slide bar is connected with electromagnet, select shuttle part to be connected with electromagnet slide bar by connector, it is characterized in that being provided with piezoresistive transducer in the bottom of electromagnet, piezoresistive transducer bottom is provided with pad; Voltage conversion circuit, piezoresistive transducer are connected with XOR gate, and XOR gate is connected with single-chip microcomputer, under the lower shifting state of electromagnet slide bar energising, the bottom of electromagnet slide bar through electromagnet and under push down piezoresistive transducer; Described voltage conversion circuit comprises the first operational amplifier, the second operational amplifier, the 3rd operational amplifier, trigger, resistance R 2, resistance R 5, the output of the first operational amplifier is connected with the input of the second operational amplifier by resistance R 2, the output of the second operational amplifier is connected with the input of the 3rd operational amplifier by resistance R 5, the output of the 3rd operational amplifier is connected with trigger, and trigger is connected with XOR gate; In described piezoresistive transducer, be provided with sensing circuit, this sensing circuit comprises four-operational amplifier, the 5th operational amplifier, the 6th operational amplifier, resistance R 10 and resistance R 11, the output of four-operational amplifier is connected with the positive input terminal of the 6th operational amplifier by resistance R 10, the output of the 5th operational amplifier is connected with the negative input end of the 6th operational amplifier by resistance R 11, and the output of the 6th operational amplifier is connected with XOR gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554454.4A CN103061033B (en) | 2012-12-20 | 2012-12-20 | Computerized flat knitter shuttle selection detection device based on piezoresistive sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554454.4A CN103061033B (en) | 2012-12-20 | 2012-12-20 | Computerized flat knitter shuttle selection detection device based on piezoresistive sensor |
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| CN103061033A CN103061033A (en) | 2013-04-24 |
| CN103061033B true CN103061033B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210554454.4A Expired - Fee Related CN103061033B (en) | 2012-12-20 | 2012-12-20 | Computerized flat knitter shuttle selection detection device based on piezoresistive sensor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354363A (en) * | 1979-12-10 | 1982-10-19 | Shima Idea Center Co., Ltd. | Means for controlling the movement of yarn carriers along with a carriage in flat knitting machines |
| US5345789A (en) * | 1991-07-11 | 1994-09-13 | Shima Seiki Mfg., Ltd. | Apparatus for controlling displacement of yarn feeders |
| JP3044370B2 (en) * | 1997-08-21 | 2000-05-22 | 株式会社島精機製作所 | Yarn supply device in flat knitting machine |
| CN201087244Y (en) * | 2007-09-29 | 2008-07-16 | 冯加林 | Shuttle box driving mechanism of computer flat knitting machine |
| CN202543542U (en) * | 2012-01-13 | 2012-11-21 | 东莞市沃德电子科技有限公司 | Yarn changing device |
| CN202576845U (en) * | 2012-03-28 | 2012-12-05 | 邹明 | Shuttle changing action detecting instrument for computerized flat knitting machine |
| CN202989474U (en) * | 2012-12-20 | 2013-06-12 | 飞虎科技有限公司 | Piezoresistive sensor based detection device for shuttle choosing device of computerized flat knitting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6445853A (en) * | 1987-08-13 | 1989-02-20 | Mitsuboshi Seisakusho | Traverse knitting machine |
-
2012
- 2012-12-20 CN CN201210554454.4A patent/CN103061033B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354363A (en) * | 1979-12-10 | 1982-10-19 | Shima Idea Center Co., Ltd. | Means for controlling the movement of yarn carriers along with a carriage in flat knitting machines |
| US5345789A (en) * | 1991-07-11 | 1994-09-13 | Shima Seiki Mfg., Ltd. | Apparatus for controlling displacement of yarn feeders |
| JP3044370B2 (en) * | 1997-08-21 | 2000-05-22 | 株式会社島精機製作所 | Yarn supply device in flat knitting machine |
| CN201087244Y (en) * | 2007-09-29 | 2008-07-16 | 冯加林 | Shuttle box driving mechanism of computer flat knitting machine |
| CN202543542U (en) * | 2012-01-13 | 2012-11-21 | 东莞市沃德电子科技有限公司 | Yarn changing device |
| CN202576845U (en) * | 2012-03-28 | 2012-12-05 | 邹明 | Shuttle changing action detecting instrument for computerized flat knitting machine |
| CN202989474U (en) * | 2012-12-20 | 2013-06-12 | 飞虎科技有限公司 | Piezoresistive sensor based detection device for shuttle choosing device of computerized flat knitting machine |
Non-Patent Citations (4)
| Title |
|---|
| JP昭64-45853A 1989.02.20 |
| JP特许第3044370B2 2000.03.17 |
| 吕建飞 等.新型电脑横机的开发研制.《针织工业》.2005,(第5期), |
| 新型电脑横机的开发研制;吕建飞 等;《针织工业》;20050531(第5期);第13至16页 * |
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