CN102926118A - Automatic bottom starting control system for flat knitting machine - Google Patents
Automatic bottom starting control system for flat knitting machine Download PDFInfo
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- CN102926118A CN102926118A CN2012103793699A CN201210379369A CN102926118A CN 102926118 A CN102926118 A CN 102926118A CN 2012103793699 A CN2012103793699 A CN 2012103793699A CN 201210379369 A CN201210379369 A CN 201210379369A CN 102926118 A CN102926118 A CN 102926118A
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Abstract
The invention relates to an automatic bottom starting control system for a flat knitting machine. The system is characterized by comprising a core control circuit module, and a scissor clip control circuit module and a bottom starting control circuit module which communicate with the core control circuit module. The invention has the outstanding characteristics and significant progress that the automatic bottom starting control system realizes an automatic starting and knitting function of the flat knitting machine, the yarn waste in the knitting process that a computerized flat knitting machine begins starting a textile can be reduced, and the target tightness of the textile can be accurately controlled in the whole knitting process, so that starting waste yarns are reduced, and the automation degree of production and the quality of the textile are improved; moreover, the starting speed of an idle machine can be improved, and the labor intensity of workers is reduced. The automatic bottom starting control system can communicate with a main control panel on the flat knitting machine through a controller area network (CAN) bus so as to be applied to a large flat knitting machine.
Description
Technical field
The present invention relates to a kind of flat machine and automatically play end control system.
Background technology
Control system is the important component part of straight-bar machines control system at the bottom of the knitting horizontal machine starting, and major function is to finish the fabric knitting process of starting.It is simple mechanical type control that existing flat machine control system plays end control mode, but not automatic control mode, therefore have stepper motor, alternating current generator speed is non-adjustable or the deficiency that can't accurately control according to position signalling, and at least 20 delicate time differences that brought by inertia, cause initially weaving in the waste, braiding process of stage yarn the fabric elasticity inconsistent, finally affect fabric quality.
Summary of the invention
The object of the present invention is to provide a kind of flat machine automatically to play end control system, by the core control circuit module scissors clamp control circuit module and an end control circuit module are accurately controlled, satisfy yarn clamping when knitting, cut off, start and woven base plate and accurately locate, compound needle grips the requirements for automatic controls such as yarn tractive, realize the straight-bar machines braiding function of automatically starting, and then fabric target tightness is able to accurate control in whole braiding process, thereby reduce the refuse yarn of starting, improve production automation degree and fabric quality.
The present invention solves the technical scheme that the prior art problem adopts: flat machine plays end control system automatically, it is characterized in that comprising core control circuit module, the scissors clamp control circuit module that all is connected with the core control circuit module communication and plays end control circuit module.Core control circuit module controls scissors clamp control circuit module and an end control circuit module, make scissors clamp control circuit module and an end control circuit module carry out accurately efficient control to each executing agency on the straight-bar machines, and in time feed back each executing agency's information and process to the core control circuit module.Having the full-automatic Computerized flat knitting machine that plays end control system compares with ordinary flat knitting machine, not only can reduce Computerized flat knitting machine yarn in the braiding process that begins fabric is started waste, improve the uniformity of fabric elasticity in the braiding process, and can improve the empty machine speed of starting, reduce workman's labour intensity, reach economical operation and satisfied the purpose of the market demand.Therefore, reach its maturity along with playing end control system, disposing the straight-bar machines that automatically plays end control system can be increasing at the proportion of knitting industry, for society makes larger contribution.
As further improving and replenishing technique scheme, the present invention adopts following technical measures: described core control circuit module comprises cpu circuit, and the bus interface circuit that the cpu circuit communication connects, JTAG debug i/f circuit, loading mode are selected circuit, condition indication circuit.Bus interface circuit is used for forming network connection with CAN, can be connected with the master board formation communication on the straight-bar machines by the CAN bus, is applicable to large-scale straight-bar machines, forms with master board to make straight-bar machines have more huge general control system after communication is connected.
Described scissors clamp control circuit module comprises the stepper motor driving circuit by the core control circuit module controls, and sends position signalling to the motor zero signal testing circuit of core control circuit module;
The control circuit module comprises the alternating current torque motor drive circuit by the core control circuit module controls at the bottom of described, send the alternating voltage cycle to the ac voltage signal testing circuit of core control circuit module, sent Floor Zero Position information to the core control circuit module play the base plate position detecting circuit, and send the signal that the detects restriction site limit signal testing circuit on the core control circuit module.
Described stepper motor driving circuit, motor zero signal testing circuit, alternating current torque motor drive circuit, ac voltage signal testing circuit, a base plate position detecting circuit and limit signal testing circuit are connected with described core control circuit module by optocoupler respectively.
Furthermore, described stepper motor driving circuit, motor zero signal testing circuit, alternating current torque motor drive circuit, ac voltage signal testing circuit, play the base plate position detecting circuit and the limit signal testing circuit is connected with described cpu circuit by optocoupler respectively.
Described motor zero signal testing circuit detects zero signal by Boolean value output sensor.Scissors clamp control circuit module is finished shear mechanism action control and clip mechanism action control.Shear mechanism and clip mechanism drive execution action by stepper motor respectively again.
Described limit signal testing circuit is by Boolean value output sensor feedback restriction site signal, described ac voltage signal testing circuit is by transformer feedback alternating voltage periodic signal, and described base plate position detecting circuit plays the base plate positional information by encoder feedback.Playing end control circuit module finishes the compound needle action control, plays the base plate action control, compound needle opening and closing movement and a base plate rise and fall action are driven by alternating current torque motor respectively and carry out, Boolean value output sensor has fed back base plate and compound needle restriction site signal to the limit signal testing circuit, transformer feedback alternating voltage periodic signal is to the ac voltage signal testing circuit, and encoder feedback plays the base plate positional information and arrived the base plate position detecting circuit.
Described alternating current torque motor drive circuit comprises drive circuit and braking circuit, and described drive circuit adopts solid-state relay, and described braking circuit adopts magnetic powder brake.
Outstanding substantive distinguishing features and marked improvement that the present invention has: automatically play end control system and realize the straight-bar machines braiding function of automatically starting, not only can reduce the waste of Computerized flat knitting machine yarn in the braiding process that begins fabric is started, so that fabric target tightness can accurately be controlled in whole braiding process, thereby reduce the refuse yarn of starting, improve production automation degree and fabric quality, and, can improve the empty machine speed of starting, reduce workman's labour intensity.In order to be applicable to large-scale straight-bar machines, automatically playing end control system can also be connected by the formation of the master board on CAN bus and straight-bar machines communication.
Description of drawings
Fig. 1 is system architecture figure of the present invention.
Fig. 2 is the core control circuit module frame figure among the present invention.
Fig. 3 is the scissors clamp control circuit module frame figure among the present invention.
Fig. 4 is the end control circuit module frame figure among the present invention.
Fig. 5 is operation principle flow chart of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Embodiment: flat machine plays end control system automatically, and as shown in Figure 1, it comprises core control circuit module, the scissors clamp control circuit module that all is connected with the core control circuit module communication and plays end control circuit module.When being applicable to large-scale straight-bar machines, form communication by the master board on CAN bus and the straight-bar machines and is connected and gets final product, autgmentability is strong, and solution is developed respectively the drawback that plays control system to different straight-bar machines.
As shown in Figure 2, the core control circuit module comprises cpu circuit, and the bus interface circuit that the cpu circuit communication connects, JTAG debug i/f circuit, loading mode are selected circuit, condition indication circuit.It is core controller that CPU adopts ARM (STM32F103).Cpu circuit mainly comprises clock circuit, reset circuit and voltage input circuit, realizes the normal operation of CPU; Bus interface circuit has mainly been realized communicating by letter of end control panel and straight-bar machines master board; If the jtag interface main circuit downloads and debugs; Loading mode selects mainly to be chosen in the start-up mode after resetting.
As shown in Figure 3, scissors clamp control circuit module comprises the stepper motor driving circuit by the core control circuit module controls, and sends position signalling to the motor zero signal testing circuit of core control circuit module.Scissors clamp control circuit module is finished the shear mechanism on the straight-bar machines, the action control of clip mechanism, shear mechanism and clip mechanism drive execution action by stepper motor respectively, and the zero signal of Boolean value output sensor feedback shear mechanism and clip mechanism is to motor zero signal testing circuit.The step motor control signal is mainly that motor enables, control and speed control are selected in direction control, segmentation.
Specifically, stepper motor driving circuit, motor zero signal testing circuit are connected with the core control circuit module by optocoupler respectively, make above-mentioned control signal carry out communication by the respective pins of the driving chip of optocoupler and CPU module.
As shown in Figure 4, play end control circuit module and comprise alternating current torque motor drive circuit by the core control circuit module controls, send the alternating voltage cycle to the ac voltage signal testing circuit of core control circuit module, sent Floor Zero Position information to the core control circuit module play the base plate position detecting circuit, and send the signal that the detects restriction site limit signal testing circuit on the core control circuit module.Play end control circuit module and finish the compound needle on the flat machine, the action control of a base plate.Compound needle opening and closing movement and a base plate rise and fall action are driven by alternating current torque motor respectively and carry out, base plate, compound needle and folding roller restriction site signal have been fed back to the limit signal testing circuit by Boolean value output sensor respectively, transformer feedback alternating voltage periodic signal is to the ac voltage signal testing circuit, and encoder feedback plays the base plate positional information and arrived the base plate position detecting circuit.
Design can reduce the noise of system like this, improves the reliability of system, makes system have the characteristics of pinpoint accuracy and high response speed.Sensor signal has mainly comprised the signals such as the position signalling, roller folding condition of base plate and compound needle.Various control signals and sensor detection signal all adopt the design of light-coupled isolation, improve the antijamming capability of system.
Specifically, alternating current torque motor drive circuit, ac voltage signal testing circuit, play a base plate position detecting circuit and be connected by optocoupler with the limit signal testing circuit and be connected with the core control circuit module, make above-mentioned control signal carry out communication by the respective pins of the driving chip of optocoupler and CPU module.
In actual applications, the alternating current torque motor drive circuit module is mainly drive circuit and braking circuit, and drive circuit adopts solid-state relay, and braking circuit adopts magnetic powder brake.
The program design that flat machine plays end control system automatically comprises: play base plate, compound needle control Driver Design; Shear mechanism, clip mechanism control Driver Design; The design of CAN bus driver plays the design of base plate positional information trace routine and the design of other position signalling trace routines.
As shown in Figure 5, flat machine plays operation principle and the flow process of end control system automatically: during beginning, at first master board sends the CAN instruction to playing end control panel, and the CPU that rises in the end control panel resolves the CAN instruction.The CAN instruction has comprised that mainly end braiding is prepared, risen in end braiding, the shear mechanism clip mechanism moves and signal feedback.Then carry out corresponding action according to each action command of CAN.Whether the CAN instruction has been when braiding is prepared at the end, mainly to be to detect first roller to open, and has carried out the action of base plate and compound needle again.The CAN instruction has been when braiding end, mainly has been that the base plate tractive is controlled, and comprises the control of alternating current torque motor and the signal feedback of encoder detection module.Wherein, the control of alternating current torque motor and the signal detection of Boolean value output sensor are finished by CPU.When the CAN instruction is the action of shear mechanism clip mechanism, mainly be clip mechanism yarn clipping, the control of shear mechanism broken yarn, carried out by CPU control, drive by stepper motor.When the CAN instruction is signal feedback, mainly be by the CAN bus communication, by Boolean value output sensor the position signalling of roller folding condition, compound needle positional information state and scissors clamp is fed back to master board respectively, the position signalling that will play base plate by encoder feeds back to master board.
Claims (8)
1. flat machine plays end control system automatically, it is characterized in that comprising core control circuit module, the scissors clamp control circuit module that all is connected with the core control circuit module communication and plays end control circuit module.
2. flat machine according to claim 1 plays end control system automatically, it is characterized in that described core control circuit module comprises cpu circuit, the bus interface circuit that the cpu circuit communication connects, JTAG debug i/f circuit, loading mode are selected circuit, condition indication circuit.
3. flat machine according to claim 2 plays end control system automatically, it is characterized in that described scissors clamp control circuit module comprises the stepper motor driving circuit by the core control circuit module controls, and send position signalling to the motor zero signal testing circuit of core control circuit module;
The control circuit module comprises the alternating current torque motor drive circuit by the core control circuit module controls at the bottom of described, send the alternating voltage cycle to the ac voltage signal testing circuit of core control circuit module, sent Floor Zero Position information to the core control circuit module play the base plate position detecting circuit, and send the signal that the detects restriction site limit signal testing circuit on the core control circuit module.
4. flat machine according to claim 3 plays end control system automatically, it is characterized in that described stepper motor driving circuit, motor zero signal testing circuit, alternating current torque motor drive circuit, ac voltage signal testing circuit, a base plate position detecting circuit and limit signal testing circuit are connected with described core control circuit module by optocoupler respectively.
5. flat machine according to claim 4 plays end control system automatically, it is characterized in that described stepper motor driving circuit, motor zero signal testing circuit, alternating current torque motor drive circuit, ac voltage signal testing circuit, a base plate position detecting circuit and limit signal testing circuit are connected with described cpu circuit by optocoupler respectively.
6. flat machine according to claim 3 plays end control system automatically, it is characterized in that described motor zero signal testing circuit and limit signal testing circuit detect feedback zero signal and restriction site signal by Boolean value output sensor respectively.
7. flat machine according to claim 3 plays end control system automatically, it is characterized in that described ac voltage signal testing circuit by transformer feedback alternating voltage periodic signal, described base plate position detecting circuit plays the base plate positional information by encoder feedback.
8. flat machine according to claim 3 plays end control system automatically, it is characterized in that described alternating current torque motor drive circuit comprises drive circuit and braking circuit, described drive circuit adopts solid-state relay, and described braking circuit adopts magnetic powder brake.
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| CN2012103793699A CN102926118A (en) | 2012-09-29 | 2012-09-29 | Automatic bottom starting control system for flat knitting machine |
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| CN2012103793699A CN102926118A (en) | 2012-09-29 | 2012-09-29 | Automatic bottom starting control system for flat knitting machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149911A (en) * | 2013-03-01 | 2013-06-12 | 杭州之山科技有限公司 | CAN (Controller Area Network) bus-based start-up base board control system and control method thereof |
| CN104122859A (en) * | 2014-07-04 | 2014-10-29 | 深圳市宝捷龙电脑刺绣技术有限公司 | Embedded electronic pattern sewing machine control system based on controller area network (CAN) bus |
| CN104133435A (en) * | 2014-07-04 | 2014-11-05 | 深圳市宝捷龙电脑刺绣技术有限公司 | Embedded-type high-speed-embroidery-machine control system based on CAN bus |
| CN106702583A (en) * | 2015-11-12 | 2017-05-24 | 株式会社岛精机制作所 | Setup equipment for flatbed knitting machine |
| CN107385647A (en) * | 2017-08-04 | 2017-11-24 | 江苏科瑞德智控自动化科技有限公司 | A kind of control system of embedded loom |
| CN110699839A (en) * | 2019-10-25 | 2020-01-17 | 桐乡市巨星针织机械制造有限公司 | Cropping method and device of computerized flat knitting machine |
| CN110846804A (en) * | 2019-11-26 | 2020-02-28 | 浙江恒强科技股份有限公司 | Flat knitting machine starting plate tension adjusting device |
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| CN202090148U (en) * | 2011-05-17 | 2011-12-28 | 杭州鼎炬科技有限公司 | Flat-knitting machine computer control system with bottom-starting plate control function |
| CN102331741A (en) * | 2011-07-27 | 2012-01-25 | 杭州致格智能控制技术有限公司 | Constant torque controller of bottom comb of computerized flat knitting machine and controlling method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149911A (en) * | 2013-03-01 | 2013-06-12 | 杭州之山科技有限公司 | CAN (Controller Area Network) bus-based start-up base board control system and control method thereof |
| CN103149911B (en) * | 2013-03-01 | 2015-07-08 | 杭州之山科技有限公司 | CAN (Controller Area Network) bus-based start-up base board control system and control method thereof |
| CN104122859A (en) * | 2014-07-04 | 2014-10-29 | 深圳市宝捷龙电脑刺绣技术有限公司 | Embedded electronic pattern sewing machine control system based on controller area network (CAN) bus |
| CN104133435A (en) * | 2014-07-04 | 2014-11-05 | 深圳市宝捷龙电脑刺绣技术有限公司 | Embedded-type high-speed-embroidery-machine control system based on CAN bus |
| CN106702583A (en) * | 2015-11-12 | 2017-05-24 | 株式会社岛精机制作所 | Setup equipment for flatbed knitting machine |
| CN107385647A (en) * | 2017-08-04 | 2017-11-24 | 江苏科瑞德智控自动化科技有限公司 | A kind of control system of embedded loom |
| CN107385647B (en) * | 2017-08-04 | 2018-05-04 | 江苏科瑞德智控自动化科技有限公司 | A kind of control system of embedded loom |
| CN110699839A (en) * | 2019-10-25 | 2020-01-17 | 桐乡市巨星针织机械制造有限公司 | Cropping method and device of computerized flat knitting machine |
| CN110846804A (en) * | 2019-11-26 | 2020-02-28 | 浙江恒强科技股份有限公司 | Flat knitting machine starting plate tension adjusting device |
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Application publication date: 20130213 |