CN107022857A - Stop pin level control device and sewing machine on sewing machine - Google Patents
Stop pin level control device and sewing machine on sewing machine Download PDFInfo
- Publication number
- CN107022857A CN107022857A CN201710370210.3A CN201710370210A CN107022857A CN 107022857 A CN107022857 A CN 107022857A CN 201710370210 A CN201710370210 A CN 201710370210A CN 107022857 A CN107022857 A CN 107022857A
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- CN
- China
- Prior art keywords
- magnet steel
- sewing machine
- control device
- level control
- stop pin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of for stopping pin level control device on sewing machine, and it includes：It is placed on the handwheel being connected with machine spindle and with two magnet steel of hand wheel rotating, two magnet steel are located on same circle, each magnet steel is respectively provided with two pole orientations on two magnetic poles, and each magnet steel and the axis direction of handwheel is perpendicular, and two adjacent pole polarities of magnet steel are identical；And two Hall sensors being fixedly installed, two Hall sensors are in be justified on parallel and diameter identical annulus with where the magnet steel；And controller, the controller is connected with two Hall sensors.The present invention can enter brake in advance and prepare, and realize brake in time, reach and accurately stop pin position.
Description
Technical field
The present invention relates to pin position detection technique field is stopped on a kind of sewing machine, more particularly to one kind is used for sewing machine
Stop pin level control device and sewing machine.
Background technology
When the motor of industrial sewing machine drives machine spindle one circle of rotation, the shank (together with needle) of sewing machine is complete
Into once pumping.When sewing machine is shut down, needle is set to be parked in assigned position automatically.It is general have on stop pin position,
Under stop pin position two positions.
The common flat seam machine typically used is needed stop pin position and under stop pin position two kinds of functions, to low side Hall mode
Stop on the electrical motor of sewing machine and controller of driving, sewing machine pin position precision and lower pin position precision it is less demanding, typically accomplish just
Minus 10 degree can just meet the use requirement of domestic consumer.Pin precision that what flat seam machine with automatic shearing function needed at present stop compared with
High (positive and negative 3 degree), therefore the general servomotor relatively expensive using price and controller are (using mode controls such as multi-thread gratings
System), need a kind of improved on the basis of the motor and controller that Hall mode drives to stop pin precision to reduce cost, to reach
Increase the requirement of automatic shearing function.
The Hall reversing motor and Hall direction selecting controller of general low cost all use 1 N poles magnet steel 81 on the market at present
A N poles Hall switch 91 and a S poles Hall switch 92 are respectively induced with a S poles magnet steel 82 to stop pin position on detecting
Stop pin position with, as shown in Figure 1, above-mentioned N poles magnet steel 81 and S poles magnet steel 82 are typically mounted on the driving handwheel 1 of sewing machine, with
Be respectively induced pin position and lower pin position, N poles Hall switch 91 and S poles Hall switch 92 so as to send upper pin position signal and under
Pin position signal.And upper pin position signal and lower pin position signal are respectively to export a low level signal for continuing the short time to control
Device, controller needs accurately to stop sewing machine with as far as possible few angle after signal is detected, and passes through magnet steel and switch
After type Hall detects signal and sent, due to the presence of inertia, sewing machine needs to be rotated further by a larger angle just to make
Sewing machine stops, make to stop pin position not accurate enough with this.
Therefore need design is a kind of can shift to an earlier date controlled motor, allow motor to stop the detection of pin position according to what preferable position was stopped
Control system.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of for stopping pin on sewing machine
Level control device and sewing machine, for solving to stop the problem of pin position control accuracy is low in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of for stopping pin position control dress on sewing machine
Put, it includes：It is placed on the handwheel being connected with machine spindle and with two magnet steel of hand wheel rotating, two magnet steel are located at same
On circle, each magnet steel is respectively provided with two magnetic poles, and two pole orientations and the axis direction of handwheel on each magnet steel are perpendicular,
Two adjacent pole polarities of magnet steel are identical；
And two Hall sensors being fixedly installed, two Hall sensors be in it is parallel with circle where the magnet steel and
On diameter identical annulus；
And controller, the controller is connected with two Hall sensors.
It is preferred that, described two magnet steel be located at it is same diametrically.
It is preferred that, the magnet steel is bar magnet or arc magnet steel.
It is preferred that, described two Hall sensors are located at central angle and are less than or equal on 90 ° of camber line.
It is preferred that, described two Hall sensors are fixed on the casing of sewing machine by an installing plate.
The present invention also provides a kind of sewing machine, and the sewing machine carries out stopping pin using the pin level control device as described above that stops
Control, is more than predetermined fixed value when controller receives the signal value that one of Hall sensor sent, and becomes larger,
Or signal value is less than predetermined fixed value and when being gradually reduced, controller enters the brake control stage, prepares to send brake life in real time
Order, makes sewing machine perform brake and stops pin.
As described above, the present invention's stops pin level control device and sewing machine, have the advantages that：The present invention is used
Two magnet steel are installed on handwheel, and two pole orientations of magnet steel are vertical with the axis direction of handwheel, i.e. two magnetic of magnet steel
Pole is distributed in the rotation direction of handwheel, and two magnetic poles of magnet steel thus can be made to pass through Hall sensor, and by hall sensing
Device is detected, thus, with the rotation of handwheel, when a magnet steel is close to Hall sensor, and Hall sensor senses and exports one
The individual signal persistently changed, gives the phase buffer that controller is braked, and brake can be entered in advance and prepared, realize brake in time,
Reach and accurately stop pin position.
Brief description of the drawings
Fig. 1 is shown as stopping detection control schematic diagram in pin position on sewing machine of the prior art.
Fig. 2 be shown as the present invention stop pin position detection control apparatus schematic diagram.
Fig. 3 is shown as the action schematic diagram for stopping pin position detection control apparatus of the present invention.
Fig. 4 is shown as the signal graph that two Hall sensors are sent with hand wheel rotating in Fig. 3.
Fig. 5 is shown as the specific block diagram of the controller of the present invention.
Component label instructions
1 handwheel
2 first magnet steel
3 second magnet steel
4 installing plates
5 first Hall sensors
6 second Hall sensors
7 casings
81 N poles magnet steel
82 S poles magnet steel
91 N poles Hall switch
92 S poles Hall switch
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 understands other advantages and effect of the present invention easily.
Fig. 1 is referred to Fig. 5.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawing etc., are only used to
Coordinate the content disclosed in specification, so that those skilled in the art is understood with reading, being not limited to the present invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influenceing effect of the invention that can be generated and the purpose that can reach, all should still it fall in disclosed skill
In the range of art content can cover.Meanwhile, in this specification it is cited as " on ", " under ", "left", "right", " centre " and
The term of " one " etc., is merely convenient to understanding for narration, and is not used to limit enforceable scope of the invention, its relativeness
It is altered or modified, under without essence change technology contents, when being also considered as enforceable category of the invention.
As shown in Fig. 2 the present invention provides a kind of for stopping pin level control device on sewing machine, it includes：It is placed in and stitches
Two magnet steel rotated on the connected handwheel 1 of owner's axle of threading and with handwheel 1, respectively the first magnet steel 2 and the second magnet steel 3, two
Magnet steel is located on same circle, and as shown in Figure 3, each magnet steel is respectively provided with two magnetic poles, i.e., each magnet steel is respectively provided with N poles and S poles, and
The axis direction of two pole orientations and handwheel on each magnet steel is perpendicular, and two adjacent pole polarities of magnet steel are identical, the
The N poles of one magnet steel 2 are extremely adjacent with the N of the second magnet steel 3, and the S poles of the first magnet steel 2 are extremely adjacent with the S of the second magnet steel 3,
And two Hall sensors being fixedly installed, respectively the first Hall sensor 5 and the second Hall sensor 6,
Two Hall sensors are in be justified on parallel and diameter identical annulus with where magnet steel, i.e., two hall sensings in the present embodiment
Device and two magnet steel are located on the same face of cylinder, and the center line on the face of cylinder is the pivot center of above-mentioned handwheel；
And controller, the controller is connected with two Hall sensors.
The present invention to send in real time and is stopped pin position using two magnet steel and two Hall sensors with two magnetic poles
Signal stops pin position signal with, just because of the same pole of two magnet steel is adjacent, therefore during hand wheel rotating, the first magnet steel
2 N is extremely first close to Hall sensor, and the S of the second magnet steel 3 is extremely first close to Hall sensor, and thus, two Hall sensors are directed to
On stop pin position to stop the signal that pin sends with different, as shown in Figure 4, that is to say, that in the rotation one week of handwheel, above stop pin
2 signals that pin position is stopped in position with are not in the voltage of repetition, improve control accuracy.
To ensure that Hall sensor senses two magnet steel signals precisely, above-mentioned two magnet steel be located at it is same diametrically, i.e., the
One magnet steel 2 and the second magnet steel 3 are symmetrical arranged on the center of circle of handwheel.
To meet with two magnetic poles, and two pole orientations meet close with the rotation direction of handwheel, in the present embodiment
Magnet steel be bar magnet or arc magnet steel.And with the magnet steel of two magnetic poles, Hall sensor correspondence magnet steel different piece production
Raw signal is different, and the Hall sensor in the present embodiment is linear hall sensor, when it is assumed that Hall sensor is just to magnet steel
Middle, i.e., when magnetic field is by the pars intermedias of two magnetic poles, the output signal of Hall sensor is 2.5V voltages；Magnet steel is just
When Hall sensor is passed through in pole, i.e., when by the magnetic direction of Hall sensor being forward direction (such as 750Gauss), output is more than
2.5V voltage；When the negative pole of magnet steel passes through Hall sensor, i.e., when by the magnetic direction of Hall sensor being negative sense (as-
750Gauss), voltage of the output less than 2.5V.According to the principle, set above-mentioned two magnet steel homopolarity adjacent in this implementation, with this
Stop pin position signal in difference and stop pin position signal with.
For ensure more accurately to export stop pin position signal and under stop pin position signal, and controller preferably receives Hall
Above-mentioned two Hall sensor is located at central angle and is less than or equal on 90 ° of camber line in the signal of sensor, the present embodiment, in hand
Take turns in rotation direction, make magnet steel and two Hall sensor sensitive time differences in OK range, make two signals of output not
It is overlapping, it is to avoid two Hall sensors are away from too far away, and the signal of the output voltage inside the circle of hand wheel rotating one is overlapping and can not sentence
The disconnected specific angle position being presently in, it is difficult to stop pin site in accurate judgement and stop pin site with, and can not use.
For ease of setting, above-mentioned two Hall sensor (the first Hall sensor 5 and the second hall sensing in the present embodiment
Device 6) it is fixed on by an installing plate 4 on the casing 7 of sewing machine.
The present invention the specific detection control process for stopping pin level control device be：Predefine under above-mentioned first magnet steel 2 is and stop
Pin position signal detection part, the second magnet steel 3 is upper pin position signal detection part, and 180 ° are differed between the first magnet steel and the second magnet steel, is preset
The pars intermedia (in the middle of i.e. two magnetic poles) of above-mentioned two magnet steel and Hall sensor just pair when, Hall sensor sends 2.5V electricity
Press signal.Handwheel 1 is rotated, and the haircut direction in the present embodiment in rotation direction such as Fig. 3, is rotate counterclockwise, presets hand
Wheel 1 rotates the first magnet steel 2 after 50 ° and starts to approach with the first Hall sensor 5, and the N of the first magnet steel 2 is extremely first passed close to the first Hall
Sensor 5, now the first Hall sensor 5 send the signal more than 2.5V, rotated with handwheel 1, what the first Hall sensor 5 was sent
Signal value gradually increases, and corresponding second Hall sensor 6 also sends the signal more than 2.5V therewith, but all the time than first
The signal that Hall sensor 5 is sent is small, when controller receives the signal more than 2.5V i.e. enter brake the manipulation stage, i.e., from
Controller can be braked as needed after 50 ° of hand wheel rotating.When handwheel 1 turns to 90 degree, the first Hall sensor 5
Output signal reaches maximum 5V, when 10 ° to 100 °, and pin mark is stopped in the lower pin position that will reach machinery, this when controller
Being known that from handwheel in 50 ° of place will stop after 50 °, thus, and controller driving sewing machine brake stopping can be carried
First 50 ° are carried out control signal, so as to improve the precision of parking.
Similarly, handwheel will be parked in pin position when turning to 260 °, and control process is：When handwheel is rotated further the second magnet steel
3 close to two Hall sensors, the S of the second magnet steel extremely first close to the first Hall sensor 5, when turning to more than 210 °, first
Signal of the output of Hall sensor 5 less than 2.5V, and then signal reduces therewith with hand wheel rotating, the second Hall sensor is also exported
Signal less than 2.5V, but it is bigger than the signal that the first Hall sensor 5 is sent all the time, when controller is received less than 2.5V's
Enter the brake manipulation stage during signal, controller from 210 ° when both known and gone to 260 ° when can carry out stopping pin position as needed
Brake.When hand wheel rotating is to 250 degree, the output signal of the first Hall sensor 5 reaches 0V, after 10 °, will reach machinery
Pin mark is stopped in upper pin position, and this when, controller equally had 50 ° of pre- brake control period, thus, controller driving sewing machine brake
Stopping can shift to an earlier date 50 ° and carry out control signal, so as to improve the precision of parking.
To realize that the controller in above-mentioned control, the present embodiment may include：As shown in Figure 5, control unit interface, CPU, ROM,
RAM and memory cell, CPU, ROM, RAM and memory cell are connected by communication with control unit interface, and control unit interface can
It is connected by signal processing circuit with above-mentioned first Hall sensor and the second Hall sensor, upper pin position signal is received with this
(stopping pin position signal on i.e.) and lower pin position signal (stopping pin position signal down)；And controller also passes through drive circuit and sewing machine
Motor is connected, and brake control is carried out with motor.
The present invention also provides a kind of sewing machine, and sewing machine carries out stopping pin control using the pin level control device as described above that stops
System, is more than predetermined fixed value when controller receives the signal value that one of Hall sensor sent, and becomes larger, or
When signal value is less than predetermined fixed value and is gradually reduced, controller enters the brake control stage, prepares to send braking commands in real time,
Sewing machine is performed brake and stop pin.
In summary, of the invention to stop pin level control device and sewing machine, it can make brake in advance and judge, make sewing
Machine enters brake and prepared in advance, it is precisely parked in pin position and stops with at pin position；And during hand wheel rotating, above stop pin
Position signal stops that pin position signal is different with, and controller, which is more easily determined, stops pin mark.So, the present invention effectively overcomes existing skill
Various shortcoming in art and have high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. it is a kind of for stopping pin level control device on sewing machine, it is characterised in that including：
It is placed on the handwheel being connected with machine spindle and with two magnet steel of hand wheel rotating, two magnet steel are located on same circle,
Each magnet steel is respectively provided with two pole orientations on two magnetic poles, and each magnet steel and the axis direction of handwheel is perpendicular, two
The adjacent pole polarity of magnet steel is identical；
And two Hall sensors being fixedly installed, two Hall sensors are in and parallel and diameter is justified at magnet steel place
On identical annulus；
And controller, the controller is connected with two Hall sensors.
2. according to claim 1 stop pin level control device, it is characterised in that：Described two magnet steel are located at same diameter
On.
3. according to claim 1 stop pin level control device, it is characterised in that：The magnet steel is bar magnet or arc magnetic
Steel.
4. according to claim 1 stop pin level control device, it is characterised in that：Described two Hall sensors are located at the center of circle
Angle is less than or equal on 90 ° of camber line.
5. according to claim 1 stop pin level control device, it is characterised in that：Described two Hall sensors pass through a peace
Dress plate is fixed on the casing of sewing machine.
6. a kind of sewing machine, it is characterised in that：The sewing machine is used as described in claim 1 to any one of claim 5
Stop pin level control device to carry out stopping pin control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370210.3A CN107022857A (en) | 2017-05-23 | 2017-05-23 | Stop pin level control device and sewing machine on sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370210.3A CN107022857A (en) | 2017-05-23 | 2017-05-23 | Stop pin level control device and sewing machine on sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107022857A true CN107022857A (en) | 2017-08-08 |
Family
ID=59528784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710370210.3A Pending CN107022857A (en) | 2017-05-23 | 2017-05-23 | Stop pin level control device and sewing machine on sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107022857A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103675A (en) * | 2017-12-14 | 2018-06-01 | 浙江众邦机电科技有限公司 | Chain sewing machine and its presser foot lifter control method and system |
| CN112981750A (en) * | 2021-03-15 | 2021-06-18 | 琦星智能科技股份有限公司 | Parking inductor of buttonhole maker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881435A (en) * | 1972-05-09 | 1975-05-06 | Janome Sewing Machine Co Ltd | Arrangement for detecting the position of the sewing needle in a sewing machine |
| US4214539A (en) * | 1978-09-21 | 1980-07-29 | The Singer Company | Position sensing device for electronic sewing machine |
| JPH0671079A (en) * | 1992-08-27 | 1994-03-15 | Brother Ind Ltd | Needle stop position controller of sewing machine |
| CN203668659U (en) * | 2014-01-03 | 2014-06-25 | 南通纺织职业技术学院 | Sewing machine control device capable of accurately detecting needle position of sewing machine |
| CN206015255U (en) * | 2016-08-31 | 2017-03-15 | 浙江众邦机电科技有限公司 | A kind of with the new automatically controlled and sewing machine for stopping pin Hall board mounting structure |
-
2017
- 2017-05-23 CN CN201710370210.3A patent/CN107022857A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881435A (en) * | 1972-05-09 | 1975-05-06 | Janome Sewing Machine Co Ltd | Arrangement for detecting the position of the sewing needle in a sewing machine |
| US4214539A (en) * | 1978-09-21 | 1980-07-29 | The Singer Company | Position sensing device for electronic sewing machine |
| JPH0671079A (en) * | 1992-08-27 | 1994-03-15 | Brother Ind Ltd | Needle stop position controller of sewing machine |
| CN203668659U (en) * | 2014-01-03 | 2014-06-25 | 南通纺织职业技术学院 | Sewing machine control device capable of accurately detecting needle position of sewing machine |
| CN206015255U (en) * | 2016-08-31 | 2017-03-15 | 浙江众邦机电科技有限公司 | A kind of with the new automatically controlled and sewing machine for stopping pin Hall board mounting structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103675A (en) * | 2017-12-14 | 2018-06-01 | 浙江众邦机电科技有限公司 | Chain sewing machine and its presser foot lifter control method and system |
| CN112981750A (en) * | 2021-03-15 | 2021-06-18 | 琦星智能科技股份有限公司 | Parking inductor of buttonhole maker |
| CN112981750B (en) * | 2021-03-15 | 2024-04-26 | 琦星智能科技股份有限公司 | Parking sensor of buttonholing machine |
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Application publication date: 20170808 |