CN109853163A - A kind of dirt detection method based on remaining line detection technique - Google Patents
A kind of dirt detection method based on remaining line detection technique Download PDFInfo
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- CN109853163A CN109853163A CN201910060113.3A CN201910060113A CN109853163A CN 109853163 A CN109853163 A CN 109853163A CN 201910060113 A CN201910060113 A CN 201910060113A CN 109853163 A CN109853163 A CN 109853163A
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Abstract
The present invention provides a kind of dirt detection method based on remaining line detection technique, comprising the following steps: the alert threshold value B of report from a liner of having a surplus, dirt detection alarm threshold value D and predetermined amount X are preset in the electronic control module of sewing machine；In sewing machine operation process, as real time detection signal Y < remaining line alarm threshold value B, then electronic control module judge baseline surplus enough, control sewing machine remain in operation；As real time detection signal Y >=remaining line alarm threshold value B, then electronic control module records the circle number that peg or spindle turns over；After peg or spindle turns over predetermined amount X, if real time detection signal Y >=dirt detection alarm threshold value D, electric control module controls alarm module issues replacement peg or spindle alarm；If real time detection signal Y < dirt detection alarm threshold value D, electric control module controls alarm module issues the alarm of replacement peg or spindle and cleaning dirt alarm.The application can also effectively detect whether in allowed limits dirt near rotating shuttle while realizing the detection of baseline surplus.
Description
Technical field
The present invention relates to sewing machine fields, more particularly to a kind of dirt detection method based on remaining line detection technique.
Background technique
Currently, the base line length being wrapped on peg or spindle in rotating shuttle is limited, while in order to avoid being finished not in time more because of baseline
Shuttle changing core and the cavity that one section of not no stitching is formed on sewing are usually provided with remaining line detector in sewing machine, for real
When monitoring sewing-machine rotating shuttle in be wrapped in baseline surplus on peg or spindle, for example application No. is 201310278156.1 Chinese inventions
A kind of use in sewing machine baseline monitoring device disclosed in patent application specification.In general, as shown in Figure 1, bobbin thread for sewing machine
Allowance detector includes the electronic control module 100 of sewing machine, is installed on the wrapping post outer peripheral surface of peg or spindle 200 and by reflectorized material
Manufactured light-reflecting portion 300 (can be reflective sheeting), is provided with bobbin case at the first through hole 201 being provided on the flange of peg or spindle 200
The second through-hole 401 on 400 and the detection sensor (such as photoelectric sensor 500) with transmitter and receiver, peg or spindle
200 and bobbin case 400 be mounted in the rotating shuttle 600 of sewing machine, photoelectric sensor 500 is connected with electronic control module 100.Above-mentioned sewing
The working principle of machine baseline allowance detector is as follows: the light that the transmitter of photoelectric sensor 500 issues sequentially passes through second
After through-hole 401 and first through hole 201, it is irradiated to the coiling post part of peg or spindle 200；When baseline surplus on the wrapping post of peg or spindle 200
When enough, then light-reflecting portion 300 is covered by baseline, does not expose, then light is radiated on baseline, does not reflect, therefore photoelectric sensor 500
Receiver do not receive optical signal or receive very weak optical signal, at this point, electronic control module 100 judges that baseline surplus is enough；
When baseline surplus deficiency on the wrapping post of peg or spindle 200, then light-reflecting portion 300 is exposed, what the transmitter of photoelectric sensor 500 issued
Light, which is irradiated in light-reflecting portion 300, to be reflected, and reflection light is by along the multipath tolerant of incident ray, therefore photoelectric sensor 500
Receiver receive the stronger optical signal of intensity, at this point, electronic control module 100 judges that baseline surplus is insufficient, alarmed, shut down
Etc. the control of some column.
In the bobbin thread for sewing machine allowance detector of above structure, electronic control module is according to the feedback signal energy of photoelectric sensor
Whether enough enough automatically identify baseline surplus in rotating shuttle.But when sewing motor spindle have accumulated line hair, mist of oil and other
After dirt, dirt accumulation can stop the transmitting and reception of photoelectric sensor optical signal near rotating shuttle, and then to photoelectric transfer
The detection of sensor interferes, and influences the precision and reliability of the detection of baseline surplus.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of based on remaining line detection technique
Dirt detection method while detecting baseline surplus using bobbin thread for sewing machine allowance detector, can also effectively detect dirt
The presence of object.
To achieve the above object, the present invention provides a kind of dirt detection method based on remaining line detection technique, including following
Step:
1), preset in the electronic control module of sewing machine the alert threshold value B of report from a liner of having a surplus, dirt detection alarm threshold value D and
Predetermined amount X；The remaining line alarm threshold value B and dirt detection alarm threshold value D is used to indicate amount detection device more than bobbin thread for sewing machine
Set the luminous intensity that middle detection sensor receives light, the remaining line alarm threshold value B < dirt detection alarm threshold value D；
2), in sewing machine operation process, the electronic control module receives the real-time detection letter of the detection sensor output
Number Y simultaneously makes following judgement according to the size of real time detection signal Y:
A, as real time detection signal Y < remaining line alarm threshold value B, then electronic control module judges that baseline surplus is enough, controls sewing
Machine remains in operation；
B, as real time detection signal Y >=remaining line alarm threshold value B, then electronic control module records the circle number that peg or spindle turns over；
After peg or spindle turns over predetermined amount X, if real time detection signal Y >=dirt detection alarm threshold value D, electronic control module are sentenced
Disconnected baseline surplus is insufficient, and the alarm module in electric control module controls sewing machine issues replacement peg or spindle alarm；
After peg or spindle turns over predetermined amount X, if real time detection signal Y < dirt detection alarm threshold value D, electronic control module are sentenced
Disconnected baseline surplus is insufficient and range of the dirt accumulation amount beyond permission, the alarm module hair in electric control module controls sewing machine
The alarm of replacement peg or spindle and cleaning dirt alarm out.
Further, the detection sensor is photoelectric sensor, and the photoelectric sensor has light emitters and light
Line receiver, the light emitters and light receiver are all directed at the wrapping post of peg or spindle in sewing machine, the table of the wrapping post
Face is equipped with light-reflecting portion.
Further, the light-reflecting portion is to be fixed on the reflective sheeting on wrapping post surface or apply to be set to the anti-of wrapping post surface
Luminescent material.
Further, the alarm module includes phonetic alarm.
Further, the alarm module includes the flashing icon being located on sewing machine operation panel.
As described above, the dirt detection method of the present invention based on remaining line detection technique, has the advantages that
The application utilizes the electronic control module and detection sensor in existing bobbin thread for sewing machine allowance detector, automatically controlled mould
The real time detection signal Y that root tuber is exported according to detection sensor compared with remaining line alarm threshold value B and dirt detection alarm threshold value D relatively after
Make the judgement of some column, so can also effectively detect while realizing the detection of baseline surplus near rotating shuttle dirt whether
In the range of permission, the final precision and reliability for guaranteeing the detection of baseline surplus；Particularly, the hardware used in the application is all
Original hardware in sewing machine does not need additionally to increase the sensor for measuring dirt without increasing any hardware cost yet, therefore at
This is low, and can be suitable for the new and old sewing machine with baseline surplus detection function.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bobbin thread for sewing machine allowance detector in the prior art.
Fig. 2 is the schematic diagram of the dirt detection method based on remaining line detection technique in the application.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is drawn, only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the invention enforceable qualifications, therefore does not have skill
Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention
Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.Together
When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat
It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence
It inside holds, when being also considered as the enforceable scope of the present invention.
The application provides a kind of dirt detection method based on remaining line detection technique, for being wrapped in sewing machine in sewing machine
Containing bobbin thread for sewing machine allowance detector as shown in Figure 1, have in bobbin thread for sewing machine allowance detector and electronic control module
100 connected detection sensors, detection sensor preferably use photoelectric sensor 500, and photoelectric sensor 500 emits with light
Device and light receiver, light emitters and light receiver are all directed at the wrapping post of peg or spindle 200 in sewing machine, the table of wrapping post
Face is equipped with light-reflecting portion 300；Light-reflecting portion 300 is to be fixed on the reflective sheeting on wrapping post surface or apply to be set to the reflective of wrapping post surface
Material.More preferably, electronic control module 100 includes the detection control in sewing machine control and bobbin thread for sewing machine allowance detector
Device, photoelectric sensor 500 are connected with detection controller, and detection controller is connected with sewing machine control, and sewing machine control is same
When also in sewing machine main motor and alarm module be connected.This application involves the dirt detection side based on remaining line detection technique
In method, detection controller judges whether the baseline surplus on peg or spindle 200 is sufficient according to the live signal that photoelectric sensor 500 exports
Whether the dirt near enough and rotating shuttle exceeds the range of permission, and sewing machine control is according to the judging result for detecting controller
The current state of sewing machine is controlled accordingly.
Further, as shown in Fig. 2, the curve S1 in Fig. 2, which is expressed as rotating shuttle nearby, influences what photoelectric sensor 500 measured
Dirt (including line hair, greasy dirt etc.) within the allowable range when, photoelectric sensor 500 export signal strength and peg or spindle 200 on instead
The relation curve of the exposing area in light portion 300 between the two, the curve S2 in Fig. 2, which is expressed as rotating shuttle, nearby influences photoelectric sensor
500 measurement dirts (including line hair, greasy dirt etc.) exceed allowed band when, photoelectric sensor 500 export signal strength and shuttle
The relation curve of the exposing area of light-reflecting portion 300 between the two on core 200.Specifically, in sewing machine operation process, peg or spindle
When the baseline surplus wound on 200 wrapping posts is enough, baseline all do not expose by covering light-reflecting portion 300, light-reflecting portion 300, then photoelectricity
The optical signal that light emitters issue in sensor 500 be radiated on baseline 200 surface of peg or spindle or rotating shuttle surface or other
When position, light receiver will receive weaker signal in photoelectric sensor 500, so that the reality that photoelectric sensor 500 exports
When detection signal Y it is smaller, both less than following remaining line alarm threshold value B.With the continuous consumption of baseline, light-reflecting portion 300 is gradually exposed,
The more of baseline consumption, surplus are fewer, then the area that light-reflecting portion 300 is exposed is more, since light-reflecting portion 300 is to the back of incident ray
Reflection characteristic so that light receiver gradually increases the signal received in photoelectric sensor 500, namely makes photoelectric sensing
The real time detection signal Y that device 500 exports is gradually increased；After light-reflecting portion 300 is exposed, the real-time detection of the output of photoelectric sensor 500
Signal Y can be greater than following remaining line alarm threshold value B.If the dirt on 500 optical path of photoelectric sensor is more, it can make
Obtain the overall sensitivity decline of photoelectric sensor 500, the i.e. amount of contaminants and 500 output signal of photoelectric sensor of rotating shuttle accumulation nearby
Size be inversely proportional.Based on this, detect controller detected according to the size of 500 output signal of photoelectric sensor baseline surplus,
And whether the accumulating amount of detection dirt exceeds allowed band, when detection controller is according to 500 output signal of photoelectric sensor
When size judges that only baseline surplus is insufficient or judges insufficient baseline surplus and the accumulating amount over range of dirt, sewing machine control
Triggering sewing machine in alarm module alarmed accordingly, thus guarantee bobbin thread for sewing machine surplus detection precision and reliably
Property, and sewing operators can be reminded to clear up the dirt of accumulation or trigger the automatic maintenance function of sewing machine in time, finally
Improve the overall performance of sewing machine.
Therefore, this application involves the dirt detection method based on remaining line detection technique the following steps are included:
Step 1) presets the alert threshold value B of report from a liner of having a surplus, dirt detection alarm threshold value D and pre- in detection controller
If enclosing number X；Remaining line alarm threshold value B and dirt detection alarm threshold value D are used to indicate light in bobbin thread for sewing machine allowance detector
Light receiver receives the luminous intensity of light, remaining line alarm threshold value B < dirt detection alarm threshold value D in electric transducer 500.
Step 2), in sewing machine operation process, photoelectric sensor 500 export real time detection signal Y, real time detection signal
What Y reflected is the luminous intensity that light receiver receives light in photoelectric sensor 500；It detects controller and receives photoelectric sensor
The real time detection signal Y of 500 outputs simultaneously makes following judgement according to the size of real time detection signal Y:
Situation A, as real time detection signal Y < remaining line alarm threshold value B, such as real time detection signal Y be Fig. 2 in A value,
At this point, within the allowable range or exceeding allowed band regardless of dirt accumulation amount, the light-reflecting portion 300 on 200 wrapping post of peg or spindle is all not
To expose, is all covered by baseline, baseline surplus is more, then and it detects controller and judges that baseline surplus is enough, sewing machine control control
Machine for sewing remains in operation, and sewing machine control does not do the judgement whether dirt accumulation amount exceeds the range of permission, sewing machine control
Device processed does not trigger the alarm module in sewing machine.
Situation B, the continuous consumption with baseline, light-reflecting portion 300 start to expose, when detection controller receives photoelectric sensing
When the real time detection signal Y that device 500 exports is more than remaining line alarm threshold value B, i.e., as real time detection signal Y >=remaining line alarm threshold value B
When, detect the circle number that controller start recording peg or spindle 200 turns over.Dirt accumulation amount within the allowable range when, when 200 turns of peg or spindle
After crossing predetermined amount X, real time detection signal Y progressively increases to E value from the B value in Fig. 2 on curve S1 and E value is greater than D value, i.e.,
Detection controller receives real time detection signal Y >=dirt that photoelectric sensor 500 exports after peg or spindle 200 turns over predetermined amount X
Alarm threshold value D is detected, at this point, detection controller judges that baseline surplus is insufficient, sewing machine control controls the alarm in sewing machine
Module only issues replacement peg or spindle alarm, reminds operator to replace peg or spindle, the also controllable machine for sewing of sewing machine control is shut down at once
Or control sewing machine remains in operation and is shut down after preset needle number again.When dirt accumulation amount exceeds allowed band, when 200 turns of peg or spindle
After crossing predetermined amount X, real time detection signal Y progressively increases to C value from the B value in Fig. 2 on curve S2 and C value is less than D value, i.e.,
Detection controller receives real time detection signal Y < dirt inspection that photoelectric sensor 500 exports after peg or spindle 200 turns over predetermined amount X
Alarm threshold value D is surveyed, at this point, detection controller judges that baseline surplus is insufficient and dirt accumulation amount is beyond the range allowed, sewing
Machine controller controls the alarm module in sewing machine and issues the alarm of replacement peg or spindle and cleaning dirt alarm, reminds operator's more shuttle changing
Core and cleaning dirt, the also controllable machine for sewing of sewing machine control are shut down or are controlled at once sewing machine and remain in operation preset needle
It is shut down again after number, alternatively, the maintenance program of sewing machine control triggering sewing machine.
More preferably, alarm module includes phonetic alarm and the flashing icon that is located on sewing machine operation panel, voice reporting
Alert device can be carried out the alarm of replacement peg or spindle in the form of audio alert or carry out the alarm of replacement peg or spindle and cleaning dirt report simultaneously
Alert, flashing icon can carry out the alarm of replacement peg or spindle in the form that chart flashes or carry out the alarm of replacement peg or spindle and cleaning simultaneously
Dirt alarm.
Further, in the above-mentioned dirt detection method based on remaining line detection technique, detection type of alarm has following two
Embodiment:
Embodiment one, pulse code method；In the embodiment, when detection controller judges baseline surplus deficiency, detection
Controller sends short pulse signal to sewing machine control, and the alarm module in sewing machine control control sewing machine only issues more
The alarm of shuttle changing core；When detection controller judges that baseline surplus is insufficient and dirt accumulation amount is beyond the range allowed, detection is controlled
Device processed sends long pulse signal to sewing machine control, and sewing machine control controls the alarm module in sewing machine and issues more shuttle changing
Core alarm and cleaning dirt alarm.Embodiment two, transmission data mode；In the embodiment, controller and sewing machine control are detected
Device is connected by interface (such as serial ports), transmits data between the two；Sewing machine control detection controller ready to receive is sentenced
Disconnected result is simultaneously controlled accordingly.
In conclusion this application involves the dirt detection method based on remaining line detection technique have an advantage that 1, no
Only can be realized baseline surplus real-time detection, moreover it is possible to around photoelectric sensor 500 greasy dirt, line hair or other to photoelectric sensing
Whether the accumulating amount of the influential dirt of 500 detection accuracy of device is measured in real time within the allowable range, to improve more than baseline
The precision and reliability of detection are measured, while can be avoided sewing machine the loss of service life of a machine caused by not clearing up for a long time；2,
The hardware used all is original hardware in sewing machine, without increasing any hardware cost, does not also need additionally to increase measurement dirt
The sensor of object, use cost is low, and can be suitable for the new and old sewing machine with baseline surplus detection function.
So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (5)
1. a kind of dirt detection method based on remaining line detection technique, it is characterised in that: the following steps are included:
1) the alert threshold value B of report from a liner of having a surplus, dirt detection alarm threshold value D, are preset in the electronic control module of sewing machine and are preset
Enclose number X；The remaining line alarm threshold value B and dirt detection alarm threshold value D is used to indicate in bobbin thread for sewing machine allowance detector
Detection sensor receives the luminous intensity of light, the remaining line alarm threshold value B < dirt detection alarm threshold value D；
2), in sewing machine operation process, the electronic control module receive detection sensor output real time detection signal Y,
And following judgement is made according to the size of real time detection signal Y:
A, as real time detection signal Y < remaining line alarm threshold value B, then electronic control module judge baseline surplus enough, control sewing machine after
Reforwarding turns；
B, as real time detection signal Y >=remaining line alarm threshold value B, then electronic control module records the circle number that peg or spindle turns over；
After peg or spindle turns over predetermined amount X, if real time detection signal Y >=dirt detection alarm threshold value D, electronic control module judge bottom
Line surplus is insufficient, and the alarm module in electric control module controls sewing machine issues replacement peg or spindle alarm；
After peg or spindle turns over predetermined amount X, if real time detection signal Y < dirt detection alarm threshold value D, electronic control module judge bottom
Line surplus is insufficient and range of the dirt accumulation amount beyond permission, and the alarm module in electric control module controls sewing machine issues more
The alarm of shuttle changing core and cleaning dirt alarm.
2. the dirt detection method according to claim 1 based on remaining line detection technique, it is characterised in that: the detection passes
Sensor is photoelectric sensor, and the photoelectric sensor has light emitters and light receiver, the light emitters and light
Line receiver is all directed at the wrapping post of peg or spindle in sewing machine, and the surface of the wrapping post is equipped with light-reflecting portion.
3. the dirt detection method according to claim 2 based on remaining line detection technique, it is characterised in that: the light-reflecting portion
To be fixed on the reflective sheeting on wrapping post surface or applying the reflectorized material set on wrapping post surface.
4. the dirt detection method according to claim 1 based on remaining line detection technique, it is characterised in that: the alarm mould
Block includes phonetic alarm.
5. the dirt detection method according to claim 1 based on remaining line detection technique, it is characterised in that: the alarm mould
Block includes the flashing icon being located on sewing machine operation panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910060113.3A CN109853163B (en) | 2019-01-22 | 2019-01-22 | Dirt detection method based on excess line detection technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060113.3A CN109853163B (en) | 2019-01-22 | 2019-01-22 | Dirt detection method based on excess line detection technology |
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| Publication Number | Publication Date |
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| CN109853163A true CN109853163A (en) | 2019-06-07 |
| CN109853163B CN109853163B (en) | 2021-03-12 |
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| CN201910060113.3A Active CN109853163B (en) | 2019-01-22 | 2019-01-22 | Dirt detection method based on excess line detection technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565284A (en) * | 2019-09-20 | 2019-12-13 | 杰克缝纫机股份有限公司 | roller machine, bobbin winding allowance detection device and use method thereof |
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| US20040040482A1 (en) * | 2002-09-02 | 2004-03-04 | Fritz Gegauf Aktiengesellschaft Bernina-Nahmaschinenfabrik | Method for determining a lower thread supply, and a sewing machine having a lower thread supply monitoring device |
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| CN207244168U (en) * | 2017-09-21 | 2018-04-17 | 杰克缝纫机股份有限公司 | A kind of peg or spindle and bobbin thread for sewing machine allowance detector |
| CN108754901A (en) * | 2018-05-31 | 2018-11-06 | 杰克缝纫机股份有限公司 | A kind of line hair cleaning plant at bobbin thread for sewing machine surplus detection |
| CN208104727U (en) * | 2018-03-12 | 2018-11-16 | 杭州琦星机器人科技有限公司 | Bobbin thread detection device and sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188902A (en) * | 1979-05-18 | 1980-02-19 | The Singer Company | Bobbin thread run-out detectors |
| US20040040482A1 (en) * | 2002-09-02 | 2004-03-04 | Fritz Gegauf Aktiengesellschaft Bernina-Nahmaschinenfabrik | Method for determining a lower thread supply, and a sewing machine having a lower thread supply monitoring device |
| CN105486692A (en) * | 2014-10-07 | 2016-04-13 | 杜克普爱华股份公司 | Sensor assembly for a sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110565284A (en) * | 2019-09-20 | 2019-12-13 | 杰克缝纫机股份有限公司 | roller machine, bobbin winding allowance detection device and use method thereof |
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| CN109853163B (en) | 2021-03-12 |
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