CN107782952A - A kind of Intelligent sewing machine with differential input voltage detection function - Google Patents
A kind of Intelligent sewing machine with differential input voltage detection function Download PDFInfo
- Publication number
- CN107782952A CN107782952A CN201610730057.6A CN201610730057A CN107782952A CN 107782952 A CN107782952 A CN 107782952A CN 201610730057 A CN201610730057 A CN 201610730057A CN 107782952 A CN107782952 A CN 107782952A
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- Prior art keywords
- sewing machine
- voltage
- input voltage
- resistance
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a kind of Intelligent sewing machine with differential input voltage detection function, one includes input voltage detection circuit, the input voltage detection circuit includes dc source (100) and master controller (200), and the dc source (100) passes sequentially through a difference channel, operational amplifier A is connected with the master controller (200).A kind of Intelligent sewing machine with differential input voltage detection function disclosed by the invention; it can allow sewing machine to have reliable input voltage measurement function; safety detection accurately and reliably can be carried out to the input voltage of sewing machine; safeguard protection is carried out to the various operating circuits in sewing machine so as to realize; avoid the occurrence of potential safety hazard; and then extend the whole service life of sewing machine, the overall garment production cost of clothes production enterprise is reduced, is of great practical significance.
Description
Technical field
The present invention relates to sewing machine technique field, more particularly to a kind of intelligence with differential input voltage detection function
Sewing machine.
Background technology
At present, with the continuous improvement of people's living standards, people are to the use demand of clothes also more and more higher, therefore,
Garment manufacturing industry has become the important industry closely bound up with the living standard of people.
In garment manufacturing industry, in order to carry out the production of clothes efficiently, in high quality, sewing machine has obtained widely should
With industrial sewing machine especially therein, industrial sewing machine, which is used as, to be suitable to largely produce in sewing factory or other industrial departments
The sewing machine of workpiece is sewed, it is all to use industrial sewing machine that clothes, shoes and hats etc., which are needed with the factory of sewing machine, at present, industry seam
Machine of threading more is widely used in the clothes production enterprise of batch micro operations clothes.
For current industrial sewing machine, the circuit corresponding to its input voltage measurement function having is complicated, Wu Fazhun
Really, safety detection reliably is carried out to the input voltage of sewing machine, is unfavorable for pacifying the various operating circuits in sewing machine
Full guard, easily there is potential safety hazard, and then reduce the whole service life of sewing machine.
Therefore, at present there is an urgent need to develop a kind of technology, it can allow sewing machine to have reliable input voltage measurement work(
Can, safety detection accurately and reliably can be carried out to the input voltage of sewing machine, so as to realize to the various work in sewing machine
Circuit carries out safeguard protection, avoids the occurrence of potential safety hazard, and then extend the whole service life of sewing machine.
The content of the invention
In view of this, it is an object of the invention to provide a kind of Intelligent sewing machine with differential input voltage detection function,
It can allow sewing machine to have reliable input voltage measurement function, and accurately and reliably the input voltage of sewing machine can be entered
Row safety detection, safeguard protection is carried out to the various operating circuits in sewing machine so as to realize, avoids the occurrence of potential safety hazard, and then
Extend the whole service life of sewing machine, reduce the overall garment production cost of clothes production enterprise, have great production real
Trample meaning.
Therefore, the invention provides a kind of Intelligent sewing machine with differential input voltage detection function, including input electricity
Pressure detection circuit, the input voltage detection circuit include dc source and master controller, and the dc source passes sequentially through one
Individual difference channel, operational amplifier A are connected with the master controller.
Wherein, the difference channel includes resistance R49, R50, R51, R52, R53, R54, R55, R56, R57 and R58, with
And including diode D17, D18, D19, D20；
The cathode output end UDC+ of dc source connecting resistance R49, R50, R51, R52 and R53 successively；
The resistance R53 meets the positive pole of the diode D18, diode D17 negative pole, electric capacity C38, resistance R48 respectively
With the reverse input end of operational amplifier A；
The cathode output end UDC- of the dc source meets described resistance R54, R55, R56, R57 and R58 successively；
The resistance R58 meets the positive pole of the diode D19, diode D20 negative pole, electric capacity C39, resistance R59 respectively
With the input in the same direction of operational amplifier A；
The negative pole of the diode D18 is connected with the first DC voltage output end V1, the negative pole of the diode D19 with
Second DC voltage output end V2 is connected, and the positive pole of the diode D17 and D20 positive pole are grounded respectively；
The electric capacity C39 and resistance R59 are grounded respectively；
Positive supply termination+the 15V of operational amplifier A voltage, the negative power end ground connection of the operational amplifier A；
The output end of the operational amplifier A connects the electric capacity C38, resistance R48 and the master controller respectively.
Wherein, after the operational amplifier A is used for the voltage signal amplification by input, then export to the master controller；
The master controller, the DC voltage that the output end for detecting the operational amplifier A in real time is exported, and will
The value of the DC voltage is compared with default safe voltage numerical intervals, if greater than the default safe voltage number
It is worth the maximum in section, then judges the sewing machine overload, and issue the user with early warning information.
Wherein, the master controller, it is additionally operable to record the operational amplifier A output in each predetermined time period in real time
The amplitude of variation of the exported DC voltage in end, if amplitude of variation is more than default normal variation amplitude, judges the seam
Thread machine input voltage fluctuation it is big, so as to issue the user with early warning information.
Wherein, the master controller is also connected with an electronic display.
Wherein, the first DC voltage output end V1 connects with+15V external dc a voltage-stabilized power supply, and described second
DC voltage output end V2 also connects with+15V external dc a voltage-stabilized power supply.
The technical scheme provided by the invention more than, compared with prior art, one kind provided by the invention has
The Intelligent sewing machine of differential input voltage detection function, it can allow sewing machine to have reliable input voltage measurement function, can
Accurately and reliably to carry out safety detection to the input voltage of sewing machine, so as to realize to the various operating circuits in sewing machine
Safeguard protection is carried out, avoids the occurrence of potential safety hazard, and then extends the whole service life of sewing machine, reduces clothes production enterprise
Overall garment production cost, is of great practical significance.
Brief description of the drawings
Fig. 1 is that input voltage is examined in a kind of Intelligent sewing machine with differential input voltage detection function provided by the invention
The connection diagram of slowdown monitoring circuit；
In figure, 100 be dc source, and 200 be master controller.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings with embodiment to this
Invention is described in further detail.
Fig. 1 is that input voltage is examined in a kind of Intelligent sewing machine with differential input voltage detection function provided by the invention
The connection diagram of slowdown monitoring circuit.
Referring to Fig. 1, the invention provides a kind of Intelligent sewing machine with differential input voltage detection function, including input
Voltage detecting circuit, the input voltage detection circuit include dc source 100 and master controller 200, the dc source 100
Pass sequentially through a difference channel, operational amplifier A is connected with the master controller 200, i.e., described dc source 100 and master
There is a difference channel and operational amplifier A between controller 200.
In the present invention, the difference channel include resistance R49, R50, R51, R52, R53, R54, R55, R56, R57 and
R58, and including diode D17, D18, D19, D20；
The cathode output end UDC+ of the dc source 100 meets described resistance R49, R50, R51, R52 and R53 successively；
It should be noted that the dc source 100 is passing through common mode electricity for the AC power (220V) of the sewing machine
Feel filter electromagnetic interference, and rectification is carried out by rectifier bridge T1, then institute is defeated after multiple processing operations such as transformer transformation
The DC voltage gone out, work electricity consumption can be provided for multiple power circuits inside sewing machine or consuming parts.
The resistance R53 meets the positive pole of the diode D18, diode D17 negative pole, electric capacity C38, resistance R48 respectively
With the reverse input end of operational amplifier A；
The cathode output end UDC- of the dc source 100 meets described resistance R54, R55, R56, R57 and R58 successively；
The resistance R58 meets the positive pole of the diode D19, diode D20 negative pole, electric capacity C39, resistance R59 respectively
With the input in the same direction of operational amplifier A；
The negative pole of the diode D18 is connected with the first DC voltage output end V1, the negative pole of the diode D19 with
Second DC voltage output end V2 is connected, and the positive pole of the diode D17 and D20 positive pole are grounded respectively.
In the present invention, in specific implementation, the first DC voltage output end V1 and+15V external dc a voltage stabilizing
Power supply connects, and the second DC voltage output end V2 also connects with+15V external dc a voltage-stabilized power supply.
The electric capacity C39 and resistance R59 are grounded respectively；
Positive supply termination+the 15V of operational amplifier A voltage, the negative power end ground connection of the operational amplifier A；
The output end of the operational amplifier A connects the electric capacity C38, resistance R48 and the master controller 200 respectively；
After the operational amplifier A is used for the voltage signal amplification by input, then export to the master controller 200；
The master controller 200, the DC voltage that the output end for detecting the operational amplifier A in real time is exported,
And by the value of the DC voltage compared with default safe voltage numerical intervals, if greater than the default safety electricity
The maximum of numerical intervals is pressed, then judges sewing machine overload, and issues the user with early warning information (such as by sewing machine
On electronic display be connected with master controller, so as to the electronical display screen display on sewing machine).
In addition, the master controller 200, can also be recorded in each predetermined time period (such as 1 second or 5 seconds) in real time
The amplitude of variation for the DC voltage that the operational amplifier A output end is exported, if amplitude of variation is more than default normal change
Change amplitude, then judge that the input voltage fluctuation of the sewing machine is big, so as to issue the user with early warning information (such as will sewing
Electronic display on machine is connected with master controller, so as to the electronical display screen display on sewing machine).
In the present invention, in specific implementation, the master controller 200 can be in being installed on the Intelligent sewing machine mainboard
Central processor CPU, digital signal processor DSP or single-chip microprocessor MCU.
In the present invention, in specific implementation, the master controller 200 can use the microcontroller of ST companies of STMicw Electronics
Device STM32F407, this is a ARM chips, the modulus AD sampling modules of built-in 12, high-precision analog signal inspection can be achieved
Survey.
In the present invention, in specific implementation, described resistance R49, R50, R51, R52, R54, R55, R56 and R57 can be selected
With the resistance of 150K ohms；The resistance R53 and R58 can select the resistance of 12K ohms, and resistance R48 and R59 can be selected
The resistance of 5.1K ohms.
In the present invention, in specific implementation, electric capacity C38, C39 can select 0.1uF and 10pF electric capacity respectively.
For the present invention, it is necessary to which explanation, it is in order to realize the detection function to input voltage, using difference channel,
After being converted into dc source (busbar voltage) by sewing machine AC power and carry out partial pressure, by opamp-output signal,
The voltage signal that operational amplifier is exported is gathered in real time by master controller, then according to the concrete numerical value of voltage and change width
Degree situation, to judge whether the operating circuit of sewing machine overloads or voltage pulsation is serious, and correspondingly send early warning letter
Breath.
In summary, compared with prior art, it is provided by the invention a kind of with differential input voltage detection function
Intelligent sewing machine, it can allow sewing machine to have reliable input voltage measurement function, can be accurately and reliably to sewing machine
Input voltage carries out safety detection, carries out safeguard protection to the various operating circuits in sewing machine so as to realize, avoids the occurrence of peace
Full hidden danger, and then extend the whole service life of sewing machine, the overall garment production cost of clothes production enterprise is reduced, there is weight
Big production practices meaning.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of Intelligent sewing machine with differential input voltage detection function, it is characterised in that including input voltage measurement electricity
Road, the input voltage detection circuit include dc source (100) and master controller (200), and the dc source (100) is successively
It is connected by a difference channel, operational amplifier A with the master controller (200).
2. Intelligent sewing machine as claimed in claim 1, it is characterised in that the difference channel include resistance R49, R50, R51,
R52, R53, R54, R55, R56, R57 and R58, and including diode D17, D18, D19, D20；
The cathode output end UDC+ of the dc source (100) meets described resistance R49, R50, R51, R52 and R53 successively；
The resistance R53 connects the positive pole of the diode D18, diode D17 negative pole, electric capacity C38, resistance R48 and fortune respectively
Calculate amplifier A reverse input end；
The cathode output end UDC- of the dc source (100) meets described resistance R54, R55, R56, R57 and R58 successively；
The resistance R58 connects the positive pole of the diode D19, diode D20 negative pole, electric capacity C39, resistance R59 and fortune respectively
Calculate amplifier A input in the same direction；
The negative pole of the diode D18 is connected with the first DC voltage output end V1, the negative pole and second of the diode D19
DC voltage output end V2 is connected, and the positive pole of the diode D17 and D20 positive pole are grounded respectively；
The electric capacity C39 and resistance R59 are grounded respectively；
Positive supply termination+the 15V of operational amplifier A voltage, the negative power end ground connection of the operational amplifier A；
The output end of the operational amplifier A meets the electric capacity C38, resistance R48 and the master controller (200) respectively.
3. Intelligent sewing machine as claimed in claim 2, it is characterised in that the operational amplifier A is used for the voltage of input
After signal amplification, then export and give the master controller (200)；
The master controller (200), the DC voltage that the output end for detecting the operational amplifier A in real time is exported, and
By the value of the DC voltage compared with default safe voltage numerical intervals, if greater than the default safe voltage
The maximum of numerical intervals, then judge the sewing machine overload, and issue the user with early warning information.
4. Intelligent sewing machine as claimed in claim 3, it is characterised in that the master controller (200), be additionally operable to record in real time
The amplitude of variation for the DC voltage that the operational amplifier A output end is exported in each predetermined time period, if change width
Degree is more than default normal variation amplitude, then judges that the input voltage fluctuation of the sewing machine is big, so as to issue the user with early warning
Prompt message.
5. the Intelligent sewing machine as described in claim 3 or 4, it is characterised in that the master controller also with an electronical display
Screen is connected.
6. Intelligent sewing machine as claimed in claim 2, it is characterised in that the first DC voltage output end V1 and one+
15V external dc voltage-stabilized power supplies connect, the second DC voltage output end V2 also with+15V external dc a voltage-stabilized power supply
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730057.6A CN107782952A (en) | 2016-08-26 | 2016-08-26 | A kind of Intelligent sewing machine with differential input voltage detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730057.6A CN107782952A (en) | 2016-08-26 | 2016-08-26 | A kind of Intelligent sewing machine with differential input voltage detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782952A true CN107782952A (en) | 2018-03-09 |
Family
ID=61438905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610730057.6A Withdrawn CN107782952A (en) | 2016-08-26 | 2016-08-26 | A kind of Intelligent sewing machine with differential input voltage detection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN107782952A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775935Y (en) * | 2004-11-15 | 2006-04-26 | 西安标准工业股份有限公司 | Voltage monitor for driving variable frequency sewing machine motor |
| CN202168038U (en) * | 2011-06-30 | 2012-03-14 | 深圳市华力特电气股份有限公司 | Difference operational amplifying circuit |
| CN203054062U (en) * | 2013-01-04 | 2013-07-10 | 深圳市晶福源电子技术有限公司 | AC voltage signal detection circuit |
| CN203881839U (en) * | 2014-05-19 | 2014-10-15 | 深圳博汇之能科技有限公司 | Frequency converter voltage monitoring circuit |
| CN204304933U (en) * | 2014-04-23 | 2015-04-29 | 深圳时代创新科技有限公司 | A kind of noiselike signal amplifier |
| CN204613281U (en) * | 2015-03-18 | 2015-09-02 | 赵晓玲 | A kind of direct current bus voltage detecting circuit |
| CN206178026U (en) * | 2016-08-26 | 2017-05-17 | 天津市中马骏腾精密机械制造有限公司 | Intelligence sewing machine with differential input voltage detection function |
-
2016
- 2016-08-26 CN CN201610730057.6A patent/CN107782952A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2775935Y (en) * | 2004-11-15 | 2006-04-26 | 西安标准工业股份有限公司 | Voltage monitor for driving variable frequency sewing machine motor |
| CN202168038U (en) * | 2011-06-30 | 2012-03-14 | 深圳市华力特电气股份有限公司 | Difference operational amplifying circuit |
| CN203054062U (en) * | 2013-01-04 | 2013-07-10 | 深圳市晶福源电子技术有限公司 | AC voltage signal detection circuit |
| CN204304933U (en) * | 2014-04-23 | 2015-04-29 | 深圳时代创新科技有限公司 | A kind of noiselike signal amplifier |
| CN203881839U (en) * | 2014-05-19 | 2014-10-15 | 深圳博汇之能科技有限公司 | Frequency converter voltage monitoring circuit |
| CN204613281U (en) * | 2015-03-18 | 2015-09-02 | 赵晓玲 | A kind of direct current bus voltage detecting circuit |
| CN206178026U (en) * | 2016-08-26 | 2017-05-17 | 天津市中马骏腾精密机械制造有限公司 | Intelligence sewing machine with differential input voltage detection function |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180309 |
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| WW01 | Invention patent application withdrawn after publication |