CN102268780A - Needle selector control and drive circuit - Google Patents
Needle selector control and drive circuit Download PDFInfo
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- CN102268780A CN102268780A CN2011100935231A CN201110093523A CN102268780A CN 102268780 A CN102268780 A CN 102268780A CN 2011100935231 A CN2011100935231 A CN 2011100935231A CN 201110093523 A CN201110093523 A CN 201110093523A CN 102268780 A CN102268780 A CN 102268780A
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Abstract
The invention provides a needle selector control and drive circuit. The circuit comprises a master control module, a plurality of needle selectors and a drive circuit and is characterized in that the drive circuit comprises an integrated drive control module, a plurality of isolated primary drive circuits and a plurality of secondary drive circuits; and the integrated drive control module comprises one or more integrated drive control chips. The needle selector control and drive circuit has the following advantage: the integrated drive control chips are adopted, thus omitting lots of original logic control chips, simplifying the circuit and improving the reliability.
Description
Technical field
The present invention relates to field of textiles, relate in particular to control of needle selection device and drive circuit in the full-automatic flat machine.
Background technology
Go up widely-used a kind of execution unit the needle selection device at the machine (as knitting big garden machine, knitting little garden machine, flat machine, knitting hosiery machine, underclothes knitting machine, knitted gloves machine etc.) of knitting industry, realize random jacquard weave by the needle selection device.And domestic 95% needle selection device all is an electromagnetic type, through years of development, present electromagnetic type needle selection device all be with moment the principle that magnetizes make, when need moving, needle selection device cutter head switches on to the needle selection device coil short time, 0.7-3.2 millisecond conduction time (determine according to different needle selection device models, need be accurate to 0.01MS conduction time), cutter head action back keeps current state by remanent magnetism, when needs cutter head counteragent, then add reverse impact electric current 0.7-3.2 millisecond.So positive-negative power is adopted on every road of needle selection device, and pipe is driven.
Drive scheme such as Fig. 1 that present domestic control system is general, this scheme is magnetizing the time of direct control coil by MCU, when needle selection device way (generally all more than 100 the tunnel) more for a long time, can cause very heavy burden to MCU, therefore, the engineer has sacrificed the time precision that magnetizes in order to control more way when designing program, and most control accuracies that magnetize can't reach 0.01MS, cause between the every road of needle selection device certain otherness being arranged, directly influence the operation of a machine speed.A bit it should be noted that in addition, because what secondary drive adopted is to the pipe drive scheme, every road needs dead band control to guarantee Guan Buhui conducting simultaneously up and down, and this scheme can't realize the dead band control that every road is independent now, have to take the second best, in a stage drive circuit, designed the logical interlock circuit, but sort circuit still has probability to occur up and down when the parameter of electronic devices and components has discreteness or environmental change, and pipe conducting simultaneously phenomenon causes drive plate to burn, so the spoilage of present control system drive plate is all than higher.
Summary of the invention
For addressing the above problem, the invention provides a kind of circuit is simple, reliability is high control of needle selection device and drive circuit.
For achieving the above object, the technical solution used in the present invention is: a kind of needle selection device control and drive circuit, comprise main control module, a plurality of needle selection device, drive circuit, it is characterized in that: described drive circuit comprises integrated drive control module, a plurality of isolation drive one-level circuit, a plurality of secondary drive; Described integrated drive control module comprises one or more integrated drive controlling chips;
Described main control module is connected with integrated drive control module, the output control signal; Described integrated drive control module connects a plurality of isolation drive one-level circuit, receives the laggard line delay of control signal, selection, and output drive signal;
Described isolation drive one-level circuit, needle selection device are connected with secondary drive, and isolation drive one-level circuit receives and drives signal, through the action of secondary drive control needle selection device.
First preferred version of the present invention is, described one or more integrated drive controlling chips are connected by bus with main control module, and main control module adopts the bus access excitation mode to control integrated drive controlling chip, uses the CS signal excitation in the bus.
Second preferred version of the present invention is that described integrated drive controlling chip comprises that counter enables generation module, counter module and selects output module; Counter enables generation module reception control signal and latchs, and extracts address information and data message, passes to the counting module counting; Select output module that control signal is deciphered, selected, and the control output drive signal.
The 3rd preferred version of the present invention is, establishes the multichannel time control circuit that independently magnetizes in the described integrated drive controlling chip.
The 4th preferred version of the present invention is that multichannel is independently established the dead band control module in the described integrated drive controlling chip.
The 5th preferred version of the present invention is that described integrated drive controlling chip comprises 16 road driving signal output circuits.
The 7th preferred version of the present invention is, described integrated drive control module comprises one or more time sequence adjusting circuits, and described time sequence adjusting circuit is connected with integrated drive controlling chip, main control module.
Technical advantage of the present invention is: adopt integrated drive controlling chip, save original a large amount of logic control chip, simplified circuit, improved reliability.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the prior art circuits module diagram.
Fig. 2 is a present embodiment circuit module schematic diagram.
Fig. 3 is a present embodiment MD200 chip main modular schematic diagram.
Fig. 4 excites schematic diagram for present embodiment MD200 chip signal.
Fig. 5 is present embodiment time-delay electric unit schematic diagram.
Fig. 6 dies for present embodiment and controls back output logic schematic diagram.
Fig. 7 is P, a N pipe conducting simultaneously schematic diagram.
Fig. 8 is time-delay back output schematic diagram.
The specific embodiment
With reference to figure 2, a kind of needle selection device control and drive circuit comprise main control module, a plurality of needle selection device, drive circuit: drive circuit comprises integrated drive control module, a plurality of isolation drive one-level circuit, a plurality of secondary drive; Integrated drive control module comprises one or more integrated drive controlling chips (MD200), and in the present embodiment, the needle selection device has surpassed 100, needs a plurality of MD200.
Main control module is connected with integrated drive control module, the output control signal; Described integrated drive control module connects a plurality of isolation drive one-level circuit, receives the laggard line delay of control signal, selection, and output drive signal;
Isolation drive one-level circuit, needle selection device are connected with secondary drive, and isolation drive one-level circuit receives and drives signal, through the action of secondary drive control needle selection device.
With reference to figure 3, the MD200 chip mainly contains seven modules: delay circuit (SigDel) and voltage detecting and reset circuit (VDC) that counter enables generation module (EnGen), counter module (Timer[16:1]) and selects output module (OutSel), dead band control circuit (OutCon[16:1]), the time control circuit that magnetizes (Con), input data.
The SigDel module is carried out 8 grades of delay process to control signal, and its precision of every grade is 20ns; The EnGen module produces count enable signal En at the trailing edge of CS, and address wire A2-A0 and data wire D0 are latched, and obtains address Addr[2:0] and data Data, use for the OutSel module; The Timer module is finished the counting operation under each sheet lectotype; The OutSel module realizes the decoding to address wire and data wire, the output of selection and control chip; The OutCon module is an independently dead band control circuit of every road, to the detection before the output of SELOUT signal, guarantees can not occur managing up and down the phenomenon of conducting simultaneously; The Con module is the time control circuit that magnetizes, and to the selection of time before the output of SELOUT signal, can adjust flexibly between 0.7-3.2MS; The VDC module realizes the detection of circuit supply power level and the reset signal of circuit is provided.
Every road is provided with the independent time control circuit that magnetizes, and precision can reach 0.01MS, guarantees the precision of the time of magnetizing, is not subjected to what influence of way, and the time of magnetizing no longer needs the MCU in the main control module to participate in control, greatly reduces the load of MCU.And the time of magnetizing can be between 0.7-3.2MS adjust flexibly, be applicable to all model needle selection devices.Make that the circuit scope of application of present embodiment is extremely wide.
With reference to figure 4, on the function exciting method of MD200 chip, we have designed the bus access energizing circuit.Common way all is that instruction excites now.Instruction excites and must many instructions finish, and the software engineer time must consider the scene protection of MCU in the main control module in design, and the program flow waterline interrupts, and interrupts entering action such as protection grade and can interrupt and excite, and causes misoperation.And all be individual instructions for the MCU bus access in most main control modules, the scene protection action of MCU, the program flow waterline interrupts, and actions such as dormancy can not influence and excite action, and it is as safe as a house to make that MD200 operates, and the misoperation phenomenon can not occur.MD200 has incomparable advantage on processing safety
Among Fig. 4, the MD200 chip functions can obtain a-signal behind CS signal trailing edge and the D signal begins to excite then, can guarantee to finish in the cycle at the calling-on signal of MCU.The function firing time has time-delay slightly than the trailing edge of CS, designs one section time-delay here, and the one, consider the coupling of bus timing, the 2nd, waits for stablizing of other signals, accurate when guaranteeing to excite.
With reference to figure 5, the interface sequence of MD200 chip and main control module MCU is designed to adjustable, this does not have this design in passive drive controlling class chip.A common control system time need be considered the MCU and the sequential interface problem of numerous chips on every side in design; run into several chip sequential through regular meeting difference is a little arranged; need engineer's software to adjust the MCU sequential to adapt to various chips; certainly do not accomplish that perfection satisfies all chip demands; MD200 then can pass through external time sequence adjusting circuit; adjust interface sequence; do not conflict fully when shared with other chips; can keep work to be in perfect state all the time; sequential is adjusted precision and is reached 20NS, can satisfy the requirement of current most MCU.This design makes MD200 have very strong compatibility.As CS0 signal among Fig. 5 through 8 grades of (every grade of 20ns) able to programme delay units (Delay Cell) after, offer internal circuit.Can select the time-delay of 1-8 level to export then according to outside time sequence adjusting circuit setting bus delay control module and offer the internal circuit use.
Delay unit (Delay Cell) is the delay unit that the cmos phase inverter is formed, be that phase inverter that a very big phase inverter back of W, L connects a normal size is used for shaping, and then connect a phase inverter that W, L are very big, connect the phase inverter shaping of a normal size again, so alternately, make a delay unit.
With reference to figure 6, we have designed the control of 16 tunnel independence dead bands MD200 chip internal.The conducting of being controlled P pipe and N pipe by OUT-P and OUT-N pair of control signal is respectively exported in the control of every road electromagnet, and setting OUT-P and OUT-N all is that output logic 1 is closed the respective drive pipe, exports 0 respective drive pipe and opens.At first forbid occurring output 00 logic state by the core logic unit of chip, like this OUT-P and OUT-N have only 11,10,01 3 kind of duty.
With reference to figure 7, the situation of P pipe and the conducting simultaneously of N pipe all can not appear in the conversion of this two states, but 10 states are transformed into 01 state or 01 state when being transformed into 10 states, then might occur the phenomenon that P pipe and N manage the while conducting in the T0 interval.
With reference to figure 8, become 0 o'clock adding TD100nS constant time lag at OUT-P and OUT-N control signal by 1, become 1 by 0 and do not add time-delay, in the TD interval, state is 1, the possibility of P pipe and the conducting simultaneously of N pipe do not occur.
The present invention is not limited only to the protection domain shown in the foregoing description, and all are based on the invention thought of present embodiment, all in protection scope of the present invention.
Claims (7)
1. a needle selection device is controlled and drive circuit, comprises main control module, a plurality of needle selection device, drive circuit, and it is characterized in that: described drive circuit comprises integrated drive control module, a plurality of isolation drive one-level circuit, a plurality of secondary drive; Described integrated drive control module comprises one or more integrated drive controlling chips;
Described main control module is connected with integrated drive control module, the output control signal; Described integrated drive control module connects a plurality of isolation drive one-level circuit, receives the laggard line delay of control signal, selection, and output drive signal;
Described isolation drive one-level circuit, needle selection device are connected with secondary drive, and isolation drive one-level circuit receives and drives signal, through the action of secondary drive control needle selection device.
2. needle selection device control according to claim 1 and drive circuit, it is characterized in that: described one or more integrated drive controlling chips are connected by bus with main control module, main control module adopts the bus access excitation mode to control integrated drive controlling chip, uses the CS signal excitation in the bus.
3. needle selection device control according to claim 1 and drive circuit is characterized in that: described integrated drive controlling chip comprises that counter enables generation module, counter module and selects output module; Counter enables generation module reception control signal and latchs, and extracts address information and data message, passes to the counting module counting; Select output module that control signal is deciphered, selected, and the control output drive signal.
4. needle selection device according to claim 3 control and drive circuit is characterized in that: establish the multichannel time independent controling circuit that magnetizes in the described integrated drive controlling chip.
5. needle selection device control according to claim 3 and drive circuit is characterized in that: establish multichannel independence dead band control module in the described integrated drive controlling chip.
6. according to described needle selection device control of claim 1-5 and drive circuit, it is characterized in that: described integrated drive controlling chip comprises 16 road driving signal output circuits.
7. needle selection device control according to claim 1 and drive circuit, it is characterized in that: described integrated drive control module comprises one or more time sequence adjusting circuits, described time sequence adjusting circuit is connected with integrated drive controlling chip, main control module.
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| CN2011100935231A CN102268780A (en) | 2011-04-14 | 2011-04-14 | Needle selector control and drive circuit |
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| CN2011100935231A CN102268780A (en) | 2011-04-14 | 2011-04-14 | Needle selector control and drive circuit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757813A (en) * | 2014-01-16 | 2014-04-30 | 常熟理工学院 | Control system of circular knitting machine |
| CN104111629A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Straight-bar machine and control method thereof |
| CN104109938A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Textile device and control circuit board thereof |
| CN104111630A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Flat knitting machine and control method thereof |
| CN106757733A (en) * | 2016-12-22 | 2017-05-31 | 重庆胜普昂凯科技有限公司 | Weft-knitted piezoelectricity slide cam selector drive circuit board |
| CN107608437A (en) * | 2017-09-29 | 2018-01-19 | 傅加龙 | A kind of jacquard needle selecting drive circuit |
| CN108330605A (en) * | 2018-04-28 | 2018-07-27 | 杭州旭仁纺织机械有限公司 | A kind of circular knitting machine control system for needle selection and control method |
| CN109680400A (en) * | 2019-02-21 | 2019-04-26 | 成都图灵创想科技有限责任公司 | A kind of intelligence slide cam selector driving circuit |
| CN115125662A (en) * | 2022-08-02 | 2022-09-30 | 浙江恒强科技股份有限公司 | Matrix type driving needle selection method of glove knitting machine |
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| CN101054752A (en) * | 2007-04-28 | 2007-10-17 | 江苏万工科技集团有限公司 | Control system for electronic jacquard machine |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757813B (en) * | 2014-01-16 | 2016-06-01 | 常熟理工学院 | A kind of knitting circular knitting machine Controlling System |
| CN103757813A (en) * | 2014-01-16 | 2014-04-30 | 常熟理工学院 | Control system of circular knitting machine |
| CN104111630B (en) * | 2014-06-16 | 2018-01-30 | 福建睿能科技股份有限公司 | Straight-bar machines and its control method |
| CN104111629A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Straight-bar machine and control method thereof |
| CN104109938A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Textile device and control circuit board thereof |
| CN104111630A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Flat knitting machine and control method thereof |
| CN104111629B (en) * | 2014-06-16 | 2017-05-31 | 福建睿能科技股份有限公司 | Straight-bar machines and its control method |
| CN106757733A (en) * | 2016-12-22 | 2017-05-31 | 重庆胜普昂凯科技有限公司 | Weft-knitted piezoelectricity slide cam selector drive circuit board |
| CN106757733B (en) * | 2016-12-22 | 2018-07-24 | 重庆胜普昂凯科技有限公司 | Weft-knitted piezoelectricity slide cam selector drive circuit board |
| CN107608437A (en) * | 2017-09-29 | 2018-01-19 | 傅加龙 | A kind of jacquard needle selecting drive circuit |
| CN108330605A (en) * | 2018-04-28 | 2018-07-27 | 杭州旭仁纺织机械有限公司 | A kind of circular knitting machine control system for needle selection and control method |
| CN108330605B (en) * | 2018-04-28 | 2023-07-28 | 杭州旭仁纺织机械有限公司 | Needle selection control system and control method of circular knitting machine |
| CN109680400A (en) * | 2019-02-21 | 2019-04-26 | 成都图灵创想科技有限责任公司 | A kind of intelligence slide cam selector driving circuit |
| CN115125662A (en) * | 2022-08-02 | 2022-09-30 | 浙江恒强科技股份有限公司 | Matrix type driving needle selection method of glove knitting machine |
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Application publication date: 20111207 |