CN109537183A - A kind of presser feet control method of sewing machine, device, medium and equipment - Google Patents
A kind of presser feet control method of sewing machine, device, medium and equipment Download PDFInfo
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- CN109537183A CN109537183A CN201811383295.XA CN201811383295A CN109537183A CN 109537183 A CN109537183 A CN 109537183A CN 201811383295 A CN201811383295 A CN 201811383295A CN 109537183 A CN109537183 A CN 109537183A
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- sewing machine
- control
- presser feet
- frequency pwm
- pwm
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B19/00—Programme-controlled sewing machines
- D05B19/02—Sewing machines having electronic memory or microprocessor control unit
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- Textile Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
This application discloses a kind of presser feet control methods of sewing machine, comprising: when detecting the triggering command for lifting the presser feet of target sewing machine, then the single-chip microcontroller controlled on target sewing machine control executes preset configuration rule, so that single-chip microcontroller exports default high-frequency PWM；Default high-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control, and by adjusting the duty ratio of default high-frequency PWM, to control the motion state of presser feet.Obviously, in this application, preset configuration rule is executed by the single-chip microcontroller on control target sewing machine control, and single-chip microcontroller is made to export default high-frequency PWM, to preset the PWM that high-frequency PWM replaces single-chip microcontroller output low frequency rate in the prior art, so as to avoid drone the noise that the presser foot lifter electromagnet of target sewing machine is issued when keeping and being attracted, user experience is substantially increased.Correspondingly, presser feet control device, medium and the equipment of a kind of sewing machine disclosed in the present application, equally have above-mentioned beneficial effect.
Description
Technical field
The present invention relates to control engineering fields, in particular to a kind of presser feet control method of sewing machine, device, medium and set
It is standby.
Background technique
The daily required household goods of a variety of people can be sewed using industrial sewing machine.Utilizing industrial sewing machine
During sewing cloth, it is often necessary to lift the presser feet of sewing machine, and the control of presser feet be usually using electromagnet as power source,
Then, the corresponding automatic driver progress presser feet control of solenoid actuated is usually accounted for first with 100% in the process
PWM (Pulse Width Modulation, pulse width modulation) driving presser feet of empty ratio lifts, and then, passes through certain duty
The PWM of ratio drives presser feet electromagnet, so that presser feet keeps lifting status, in the process, usually utilizes common monolithic
Machine I/O port carries out simulation PWM control, and the PWM control frequency of output is lower, therefore will cause electromagnet current in industrial sewing machine
Pulsation is big, generates spacing electromagnetic radiation and will cause certain interference to the conduction of power grid, and low-frequency PWM control is sewed
When the electromagnet of machine, drone the noise that human ear can be heard can be issued, strong influence user experience.It can be seen that how
A kind of better sewing-machine foot control method is provided, to eliminate drone noise when control sewing-machine foot, improves user's body
It tests, is those skilled in the art's urgent problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of presser feet control method of sewing machine, device, medium and setting
It is standby, to eliminate drone noise of user during using sewing-machine foot, improve user experience.Its concrete scheme is as follows:
A kind of presser feet control method of sewing machine, comprising:
When detecting the triggering command for lifting the presser feet of target sewing machine, then control on the target sewing machine control
Single-chip microcontroller execute preset configuration rule so that the single-chip microcontroller exports default high-frequency PWM；
The default high-frequency PWM is transmitted to the control circuit for electromagnet on the target sewing machine control, and is passed through
The duty ratio of the default high-frequency PWM is adjusted, to control the motion state of the presser feet.
Preferably, the magnet control default high-frequency PWM being transmitted on the target sewing machine control
Circuit, and by adjusting the duty ratio of the default high-frequency PWM, to control the process of the motion state of the presser feet, comprising:
The default high-frequency PWM is transmitted to the control circuit for electromagnet on the target sewing machine control, and is passed through
The duty ratio of the default high-frequency PWM is adjusted, lifts or keep to lift or put down to control the presser feet.
Preferably, the magnet control default high-frequency PWM being transmitted on the target sewing machine control
The process of circuit, comprising:
The magnet control default high-frequency PWM being transmitted to by high speed photo coupling on the target sewing machine control
Circuit.
Preferably, described to be transmitted to the default high-frequency PWM on the target sewing machine control by high speed photo coupling
Control circuit for electromagnet process, comprising:
The default high-frequency PWM is transmitted using the high speed photo coupling, and passes the default high-frequency PWM via amplifying circuit
Transport to the control circuit for electromagnet on the target sewing machine control.
Preferably, the creation process of the preset configuration rule, comprising:
PWM is set by the I/O port of the single-chip microcontroller, and the clock and count value of the PWM are adjusted, to obtain
The preset configuration rule.
Preferably, further includes:
The frequency and duty ratio that the PWM of the single-chip microcontroller output is adjusted by operation panel, so that the single-chip microcontroller exports
The PWM of different frequency and duty ratio.
Correspondingly, the invention also discloses a kind of presser feet control devices of sewing machine, comprising:
Rate-adaptive pacemaker module, for when detecting the triggering command for lifting the presser feet of target sewing machine, then controlling target
Single-chip microcontroller on sewing machine control executes preset configuration rule, so that the single-chip microcontroller exports default high-frequency PWM；
Presser feet control module, the electromagnetism for being transmitted to the default high-frequency PWM on the target sewing machine control
Iron control circuit, and by adjusting the duty ratio of the default high-frequency PWM, to control the motion state of the presser feet.
Correspondingly, the invention also discloses a kind of computer readable storage medium, on the computer readable storage medium
It is stored with computer program, the computer program realizes the presser feet control of sewing machine as previously disclosed when being executed by processor
The step of method.
Correspondingly, the invention also discloses a kind of presser feets of sewing machine to control equipment, comprising:
Memory, for storing computer program；
Processor realizes the presser feet control method of sewing machine as previously disclosed when for executing the computer program
Step.
As it can be seen that in the present invention, when detecting the triggering command for lifting the presser feet of target sewing machine, then controlling target seam
The single-chip microcontroller threaded on machine controller executes preset configuration rule, so that then single-chip microcontroller, which exports default high-frequency PWM, will preset
High-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control, and by adjusting the duty of default high-frequency PWM
Than to control the motion state of presser feet.Obviously, in the process, single-chip microcontroller is to preset high-frequency PWM to the motion state of presser feet
It is controlled, is thus avoided in the prior art, when controlling the motion state of presser feet with low-frequency PWM, electromagnet institute
Drone the noise issued, to substantially increase user experience.Correspondingly, a kind of presser feet of sewing machine disclosed by the invention controls
Device, medium and equipment equally have above-mentioned beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of the presser feet control method of sewing machine provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the presser feet control system of sewing machine provided in an embodiment of the present invention；
Fig. 3 is a kind of structure chart of the presser feet control device of sewing machine provided in an embodiment of the present invention；
Fig. 4 is that a kind of presser feet of sewing machine provided in an embodiment of the present invention controls the structure chart of equipment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the presser feet control method of existing sewing machine, the common I/O port simulation PWM control of single-chip microcontroller is usually used,
The PWM frequency for causing single-chip microcontroller to export is lower, and thus when controlling feet motion, electromagnet can issue human ear to be listened single-chip microcontroller
Drone the noise that arrives, strong influence user experience.The object of the present invention is to provide a kind of presser feet control method of sewing machine,
To eliminate PWM to drone the noise in electromechanical magnet progress control process of sewing.In order to manage those skilled in the art preferably
The solution present invention, with reference to the accompanying drawings and detailed description elaborates to the present invention.
The embodiment of the invention discloses a kind of presser feet control methods of sewing machine, as shown in Figure 1, this method comprises:
Step S11: when detecting the triggering command for lifting the presser feet of target sewing machine, then the control of target sewing machine is controlled
Single-chip microcontroller on device executes preset configuration rule, so that single-chip microcontroller exports default high-frequency PWM；
Step S12: default high-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control, and is passed through
The duty ratio of default high-frequency PWM is adjusted, to control the motion state of presser feet.
It in the present embodiment, is setting preset configuration rule first, so that the single-chip microcontroller on target sewing machine control
When executing preset configuration rule, default high-frequency PWM can be exported.So, when detecting the presser feet for lifting target sewing machine
When triggering command, preset configuration rule is executed by the single-chip microcontroller on control target sewing machine control, so that it may so that monolithic
Machine exports default high-frequency PWM.Then, default high-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control,
And by adjusting the duty ratio of default high-frequency PWM, so that it may control the motion state of presser feet.
It obviously, in the process, due to single-chip microcontroller output is default high-frequency PWM, at this point, by control circuit for electromagnet institute
The electromagnet of control can generate lesser pulsation of current, so, under such state, electromagnetic radiation caused by electromagnet also can
It is smaller, also, also can be smaller to Conduction Interference caused by power grid, meanwhile, by default high-frequency PWM control magnet control electricity
Road, electromagnet will not issue drone the noise that human ear can be heard, substantially increase user experience.
It should be noted that in practical application, preset configuration rule can be by the configuration to hardware device into
Row modification is also possible to realize the modification of the frequency to single-chip microcontroller output PWM by the method for software program, herein to realize
It does not limit specifically.
Herein, as a preferred embodiment, 15K can be set by default high-frequency PWM, come with this so that electromagnetism
Iron will not issue drone the noise that human ear can be heard.Certainly, in practical application, default high-frequency PWM can also be fitted
The adjustment of answering property, does not repeat specifically herein.In addition, using the method for default high-frequency PWM control presser feet in the present embodiment, together
Sample can be adapted for backstitching in the magnet control system that electromagnet, clamp electromagnet etc. need to be controlled by PWM, this
Place no longer repeats one by one.
As it can be seen that in the present embodiment, when detecting the triggering command for lifting the presser feet of target sewing machine, then controlling target
Single-chip microcontroller on sewing machine control executes preset configuration rule, so that the default high-frequency PWM of single-chip microcontroller output then will be pre-
If high-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control, and by adjusting the duty of default high-frequency PWM
Than to control the motion state of presser feet.Obviously, in the process, single-chip microcontroller is to preset high-frequency PWM to the motion state of presser feet
It is controlled, is thus avoided in the prior art, when controlling the motion state of presser feet with low-frequency PWM, electromagnet institute
Drone the noise issued, to substantially increase user experience.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, specifically, above-mentioned step
Rapid S12: default high-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control, and by adjusting default height
The duty ratio of frequency PWM, to control the process of the motion state of presser feet, comprising:
Default high-frequency PWM is transmitted to the control circuit for electromagnet on target sewing machine control, and by adjusting default
The duty ratio of high-frequency PWM is lifted or keeps to lift or put down to control presser feet.
It is understood that single-chip microcontroller is during control presser feet is moved, it is by adjusting default high-frequency PWM
Duty ratio, come what is controlled the motion state of presser feet.Specifically, in practical application, the motion state of presser feet includes
It lifts, keep lifting and putting down three phases.
Specifically, in the present embodiment, single-chip microcontroller can first set duty ratio during exporting default high-frequency PWM
100% is set, so that presser feet lifts, then, duty ratio is revised as 25%, so that presser feet keeps lifting status, finally, will
Duty ratio is revised as 0%, and presser feet is put down.Obviously, control method in this way, so that it may so that target sewing machine is completed
To the sewing process of cloth.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, specifically, above-mentioned step
It is rapid: default high-frequency PWM is transmitted to the process of the control circuit for electromagnet on target sewing machine control, comprising:
The control circuit for electromagnet default high-frequency PWM being transmitted to by high speed photo coupling on target sewing machine control.
It is understood that in the control system of target sewing machine, the ground terminal of single-chip microcontroller and electromagnet not phase
Together, so, it is that single-chip microcontroller is isolated with the ground terminal of electromagnet using high speed photo coupling in the present embodiment, is mentioned with this
The security performance of high target sewing machine.Also, high speed photo coupling also has the characteristics that transmission rate is fast, signal transmits distortionless, institute
To utilize high speed photo coupling to transmit default high-frequency PWM, it can also be ensured that default high-frequency PWM is distortionless is transmitted to target sewing machine
Control circuit for electromagnet on controller thereby ensures that the accuracy rate of control circuit for electromagnet output duty cycle and frequency.
Specifically, above-mentioned steps: the electricity default high-frequency PWM being transmitted to by high speed photo coupling on target sewing machine control
The process of magnet control circuit, comprising:
Default high-frequency PWM is transmitted using high speed photo coupling, and default high-frequency PWM is transmitted to target sewing via amplifying circuit
Control circuit for electromagnet on machine controller.
It in the present embodiment, is to transmit default high-frequency PWM using high speed photo coupling, and via amplifying circuit to default high frequency
The driving capability of PWM amplifies, and the magnet control being thus transmitted to default high-frequency PWM on target sewing machine control
Circuit.Obviously, by such mode of operation, it ensure that stabilization of presser feet during lifting, reliable.It should be noted that
In the present embodiment, the specific logical construction of amplifying circuit is not limited specifically, as long as can play to default high-frequency PWM
The circuit that driving capability amplifies.
In addition, single-chip microcontroller needs to export two-way control altogether in the motion process of control presser feet in practical application
Signal is default high-frequency PWM all the way, is discharge signal all the way, presets high-frequency PWM and discharge signal collective effect to maintain presser feet
Lifting status.
Wherein, it presets high-frequency PWM and discharge signal requires to improve default high-frequency PWM and electric discharge letter by amplifying circuit
Number driving capability, also, in default high-frequency PWM control process, since the switch of high frequency can generate a very big voltage,
At this time, it may be necessary to be discharged this portion voltage by discharge circuit, otherwise, this portion voltage can be to one in target sewing machine
A little hardware damage, and lift but also presser feet cannot keep, so, it in practical application, is matched using discharge signal
Default high-frequency PWM is closed, so that the presser feet of target sewing machine keeps lifting status.
As shown in Fig. 2, being a kind of structural block diagram of the presser feet control system of sewing machine provided in this embodiment.Specifically,
Be first target sewing machine electric supply system be target sewing machine control on single-chip microcontroller, high speed photo coupling and electromagnet control
Circuit processed is powered, and then, single-chip microcontroller exports default high-frequency PWM and discharge signal, wherein default high-frequency PWM is via high speed
Optocoupler is directly transferred to control circuit for electromagnet, and discharge signal is transmitted to magnet control electricity via high speed photo coupling and discharge circuit
Road, so that the electromagnet of target sewing machine keeps lifting status.In addition, in practical application, specifically also by high level
It is to control electromagnet by low level to open either closing, is to be determined by hardware circuit design, is illustrated herein.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, preset configuration rule
Creation process, comprising:
PWM is configured by the I/O port of single-chip microcontroller, and the clock and count value of PWM are adjusted, to obtain preset configuration
Rule.
In the present embodiment, there is provided a kind of specific methods that preset configuration rule is arranged, that is, firstly, being by list
The I/O port of piece machine is configured to PWM function, then, is adjusted correspondingly to the clock and count value of PWM, so, monolithic
Machine will export default high-frequency PWM.
It, can be by adjusting count maximum (CNT_ when the count value to PWM is debugged in practical application
MAX) Lai Shixian, namely, it is assumed that the counting mode of configuration is to count downwards upwards, first starts from scratch and counts up, works as count value
When reaching count maximum CNT_MAX, it count down to zero still further below, so recycles.Meanwhile output side is limited by action of configuration
Formula, namely, it is assumed that be configured to count up reach default fiducial value after export low level, count that reach pre-set count values defeated downwards
High level out so recycles, after the completion of configuration, single-chip microcontroller, that is, exportable default high-frequency PWM.That is, comparing by the way that modification is default
Value can achieve the purpose of modification PWM duty cycle, can achieve modification PWM frequency by modifying count maximum CNT_MAX
Purpose.
Based on the above embodiment, the present embodiment is further described and optimizes to above-described embodiment, above-mentioned sewing machine
Presser feet control method, further includes:
The frequency and duty ratio of the PWM of single-chip microcontroller output are adjusted by operation panel, so that single-chip microcontroller exports different frequency
With the PWM of duty ratio.
In practical application, the frequency of PWM and duty ratio can also be set to corresponding parameter, and by these parameters
It is stored in operation panel, then, these parameters is corrected or adjusted by operation panel, to reach to single-chip microcontroller
The purpose that the frequency and duty ratio of PWM is adjusted.Obviously, such mode of operation eliminates operator and needs to match hardware
The complicated processes that rule is modified are set, so, using method provided by the present embodiment, it can further improve user's body
It tests, improves the competitiveness of product.
Correspondingly, the invention also discloses a kind of presser feet control devices of sewing machine, as shown in Figure 3, comprising:
Rate-adaptive pacemaker module 21, for when detecting the triggering command for lifting the presser feet of target sewing machine, then controlling mesh
The single-chip microcontroller marked on sewing machine control executes preset configuration rule, so that single-chip microcontroller exports default high-frequency PWM；
Presser feet control module 22, the magnet control for being transmitted to default high-frequency PWM on target sewing machine control
Circuit, and by adjusting the duty ratio of default high-frequency PWM, to control the motion state of presser feet.
Correspondingly, being stored on computer readable storage medium the invention also discloses a kind of computer readable storage medium
There is computer program, the step of the presser feet control method of sewing machine as previously disclosed is realized when computer program is executed by processor
Suddenly.
Correspondingly, the invention also discloses a kind of presser feets of sewing machine to control equipment, as shown in Figure 4, comprising:
Memory 31, for storing computer program；
Processor 32 realizes the step of the presser feet control method of sewing machine as previously disclosed when for executing computer program
Suddenly.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part
Explanation.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
A kind of presser feet control method of sewing machine provided by the present invention, device, medium and equipment have been carried out in detail above
Thin to introduce, used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of presser feet control method of sewing machine characterized by comprising
When detecting the triggering command for lifting the presser feet of target sewing machine, then the single-chip microcontroller on target sewing machine control is controlled
Preset configuration rule is executed, so that the single-chip microcontroller exports default high-frequency PWM；
The default high-frequency PWM is transmitted to the control circuit for electromagnet on the target sewing machine control, and by adjusting
The duty ratio of the default high-frequency PWM, to control the motion state of the presser feet.
2. the method according to claim 1, wherein described be transmitted to the target for the default high-frequency PWM
Control circuit for electromagnet on sewing machine control, and by adjusting the duty ratio of the default high-frequency PWM, to control the pressure
The process of the motion state of foot, comprising:
The default high-frequency PWM is transmitted to the control circuit for electromagnet on the target sewing machine control, and by adjusting
The duty ratio of the default high-frequency PWM is lifted or keeps to lift or put down to control the presser feet.
3. the method according to claim 1, wherein described be transmitted to the target for the default high-frequency PWM
The process of control circuit for electromagnet on sewing machine control, comprising:
The default high-frequency PWM is transmitted to the electricity of the magnet control on the target sewing machine control by high speed photo coupling
Road.
4. according to the method described in claim 3, it is characterized in that, described pass the default high-frequency PWM by high speed photo coupling
Transport to the process of the control circuit for electromagnet on the target sewing machine control, comprising:
The default high-frequency PWM is transmitted using the high speed photo coupling, and is transmitted to the default high-frequency PWM via amplifying circuit
Control circuit for electromagnet on the target sewing machine control.
5. the method according to claim 1, wherein the creation process of the preset configuration rule, comprising:
PWM is set by the I/O port of the single-chip microcontroller, and the clock and count value of the PWM are adjusted, it is described to obtain
Preset configuration rule.
6. method according to any one of claims 1 to 5, which is characterized in that further include:
The frequency and duty ratio of the PWM of the single-chip microcontroller output are adjusted by operation panel, so that single-chip microcontroller output is different
The PWM of frequency and duty ratio.
7. a kind of presser feet control device of sewing machine characterized by comprising
Rate-adaptive pacemaker module, for when detecting the triggering command for lifting the presser feet of target sewing machine, then controlling the target
Single-chip microcontroller on sewing machine control executes preset configuration rule, so that the single-chip microcontroller exports default high-frequency PWM；
Presser feet control module, the electromagnet control for being transmitted to the default high-frequency PWM on the target sewing machine control
Circuit processed, and by adjusting the duty ratio of the default high-frequency PWM, to control the motion state of the presser feet.
8. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the presser feet control such as sewing machine as claimed in any one of claims 1 to 6 when the computer program is executed by processor
The step of method processed.
9. a kind of presser feet of sewing machine controls equipment characterized by comprising
Memory, for storing computer program；
Processor realizes the presser feet such as sewing machine as claimed in any one of claims 1 to 6 when for executing the computer program
The step of control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811383295.XA CN109537183A (en) | 2018-11-20 | 2018-11-20 | A kind of presser feet control method of sewing machine, device, medium and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811383295.XA CN109537183A (en) | 2018-11-20 | 2018-11-20 | A kind of presser feet control method of sewing machine, device, medium and equipment |
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Cited By (1)
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| CN110438672A (en) * | 2019-08-21 | 2019-11-12 | 浙江美机缝纫机有限公司 | The lift of sewing machine bleeds off pressure foot control device and control method |
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Application publication date: 20190329 |
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