CN109267246A - A kind of sewing machine feed dog control method, system and sewing machine - Google Patents
A kind of sewing machine feed dog control method, system and sewing machine Download PDFInfo
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- CN109267246A CN109267246A CN201811357601.2A CN201811357601A CN109267246A CN 109267246 A CN109267246 A CN 109267246A CN 201811357601 A CN201811357601 A CN 201811357601A CN 109267246 A CN109267246 A CN 109267246A
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- feeding tooth
- driving source
- mentioned
- presser feet
- signal
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/06—Work-feeding means with feed dogs having horizontal and vertical movements arranged above and below the workpieces
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of sewing machine feed dog control method, system and sewing machines.It solve the problems, such as existing presser feet lifting when feeding tooth decline can not simultaneously intelligence adjust and it is troublesome in poeration.This sewing machine feed dog control method includes: to provide a driving source, for driving feeding tooth to be decreased below needle plate upper surface by driving mechanism；A presser feet sensing device being provided, lifting signal is issued when for detecting presser feet lifting, detects and issues holding signal when presser feet is raised to highest point, detects and issues reset signal when presser feet is declined and resetted by highest point；A controller is provided, is decreased below needle plate upper surface for controlling driving source task driven feeding tooth when receiving lifting signal；Driving source work is controlled when receiving and keeping signal makes feeding tooth maintain present level position constant；The work of control driving source resets feeding tooth when it receives the reset signal it.This control method and system have the advantages that intelligently to adjust feeding tooth and easy to operate.
Description
Technical field
The invention belongs to control technology field of sewing, it is related to a kind of sewing machine feed dog control method, system and sewing machine.
Background technique
Existing sewing machine is after sewing thin material, and cloth is easily stuck between feeding tooth slot, so that cloth is not easy smoothly to remove
Out, when cloth is stuck in feeding tooth slot, feeding tooth is located above needle plate, is at the highest notch.When charging, after presser feet lifting,
Its presser feet lower end surface is to the theoretic maximum gauge value that the distance between needle plate is that sewing can smoothly be fed, but due to feeding
Tooth is at the highest notch, and is located above needle plate, has tied up the segment space of sewing feeding, the charging of especially thicker sewing can be led
It causes without upper material space abundant enough to which feeding is inconvenient.
In order to solve this problem, disclosing publication No. is CN106988030A, and entitled one kind is by foot lifting mechanism control
The feeding mechanism of system moves down the Chinese patent of structure and sewing machine, which includes the presser foot lifter spanner in foot lifting mechanism, should
Presser foot lifter spanner has the first swing pivot, it is characterised in that: further includes the eccentric shaft being installed in rotation in casing, has
The retainer of second swing pivot and the feeding tooth for being mounted on retainer one end offer sliding slot, the eccentric shaft in the retainer
With shaft body portion and eccentric setting in the eccentric shaft portion in shaft body portion, the presser foot lifter spanner is by the first transmission mechanism and partially
The shaft body portion of mandrel is connected, and the eccentric shaft portion of the eccentric shaft is installed in rotation in the sliding slot of retainer and and sliding slot
It is slidably matched；When presser foot lifter, the presser foot lifter spanner swings around the first swing pivot and passes through the first transmission mechanism and bias
Axis driving retainer is swung around the second swing pivot, moves down one end that feeding tooth is equipped on retainer.Although the technical solution compared with
Solve above-mentioned technical problem well, but there are still some problems: the mainly technical solution is by spanner driving method
Driving feeding tooth one end move down, one end of feeding tooth, which moves down distance, can not intelligently adjust control, can not achieve automate and
It is troublesome in poeration.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problem, proposes a kind of sewing machine feed dog control method, is
System and sewing machine.
Object of the invention can be realized by the following technical scheme: a kind of sewing machine feed dog control method, feature
It is, comprising:
A driving source is provided, for driving feeding tooth to be decreased below needle plate upper surface by driving mechanism；
A presser feet sensing device being provided, lifting signal is issued when for detecting presser feet lifting, detects that presser feet is lifted
It is issued when rising to highest point and keeps signal, detected and issue reset signal when presser feet is declined and resetted by highest point；
A controller is provided, for controlling under driving source task driven feeding tooth when receiving above-mentioned lifting signal
It is brought down below needle plate upper surface；Driving source work is controlled when receiving above-mentioned holding signal makes feeding tooth maintain present level position
It sets constant；Driving source work is controlled when receiving above-mentioned reset signal resets feeding tooth.
In a kind of above-mentioned sewing machine feed dog control method, the controller is when receiving above-mentioned lifting signal
Starting driving source works and is stepped up the input current of driving source to drive feeding tooth to decline；Believe when receiving above-mentioned holding
Number when control driving source input current it is constant to make feeding tooth maintain present level position it is constant；Believe when receiving above-mentioned reset
Number when control driving source input current instantaneous interruption or gradually become smaller until to 0 make feeding tooth reset.
A kind of sewing machine feed dog control system, including driving mechanism, the driving mechanism connect with feeding tooth and can drive
Dynamic feeding tooth is decreased below needle plate upper surface, which is characterized in that further include:
Driving source connect with above-mentioned driving mechanism and above-mentioned driving mechanism is driven to work；
Presser feet sensing device issuing lifting signal, detecting that presser feet is raised to highest point when for detecting presser feet lifting
When issue keep signal, detect presser feet by highest point decline reset when issue reset signal；
Controller is electrically connected with above-mentioned driving source and presser feet sensing device respectively, receives above-mentioned lifting signal for working as
When control driving source task driven feeding tooth be decreased below needle plate upper surface；Driving is controlled when receiving above-mentioned holding signal
Source work makes feeding tooth maintain present level position constant；Driving source work is controlled when receiving above-mentioned reset signal makes feeding
Tooth resets.
In a kind of above-mentioned sewing machine feed dog control system, the driving mechanism includes eccentric shaft sleeve, bias
Axis, connecting rod and the retainer with the first swing pivot, feeding tooth are fixedly mounted on one end of retainer, are offered on the retainer
Sliding slot, the eccentric shaft have shaft body portion and eccentric setting in the eccentric shaft portion in shaft body portion, the eccentric shaft of the eccentric shaft
Portion is located in retainer sliding slot and is slidably connected with sliding slot, and the eccentric shaft sleeve is fixed on casing and is set on eccentric shaft simultaneously
It is relatively rotated with eccentric shaft, connecting rod one end is connected in the shaft body portion of eccentric shaft, and the other end is connect with driving source, the bias
Reset spring and retaining ring are also arranged in the shaft body portion of axis, the retaining ring is by being fixed on casing, the reset spring one
End is resisted against on above-mentioned connecting rod, and the other end is resisted against on retaining ring.
In a kind of above-mentioned sewing machine feed dog control system, the presser feet sensing device includes the first Hall member
Part, the second Hall element and the magnet steel being fixedly mounted on spanner, spanner are installed in rotation on casing and for driving pressure
Foot lifting, the first Hall element and the second Hall element pass through mounting bracket respectively and are connected on casing, and when original state, i.e.,
When presser feet is not lifted, first Hall element and above-mentioned magnet steel face are arranged；When presser feet is raised to highest point, described second
Hall element and above-mentioned magnet steel face are arranged.
In a kind of above-mentioned sewing machine feed dog control system, the controller includes:
Decline module, is decreased below for controlling driving source task driven feeding tooth when receiving above-mentioned lifting signal
Needle plate upper surface；
Maintenance module makes feeding tooth maintain present level for controlling driving source work when receiving above-mentioned holding signal
Position is constant；
Reseting module makes feeding tooth be reset to initial height for controlling driving source work when receiving above-mentioned reset signal
Degree.
In a kind of above-mentioned sewing machine feed dog control system, the decline module, which is used to work as, receives above-mentioned lifting
Start driving source when signal to work and be stepped up the input current of driving source to drive feeding tooth to be decreased below on needle plate
End face；The maintenance module is used to control driving source input current when receiving above-mentioned holding signal constant to make feeding tooth
Maintain present level position constant；The reseting module is for controlling the input electricity of driving source when receiving above-mentioned reset signal
Stream instantaneous interruption gradually becomes smaller until resetting feeding tooth to 0.
In a kind of above-mentioned sewing machine feed dog control system, the driving source be the first electromagnet, described first
Electromagnet is fixed on casing by electromagnet stent, and one end of the connecting rod is provided with strip groove, first electromagnet
There is sliding axle, sliding axle is threaded through realization in strip groove and is slidably connected on output shaft.
In a kind of above-mentioned sewing machine feed dog control system, the controller is sewing Electrical Control.
A kind of sewing machine, including foot lifting mechanism, the foot lifting mechanism include the second electromagnet and above-mentioned spanner, are pulled
The output axis connection of hand one end and the second electromagnet, the other end may be rotatably mounted on casing, it is characterised in that: further include above-mentioned
Sewing machine feed dog control system.
Compared with prior art, this feeding tooth control method and system have the advantages that following several:
1, the driving source for driving feeding tooth to decline is by controller intelligent control, so as to realize intelligent control regulating
Section, and accuracy is more preferable, it is more convenient to operate, and is not necessarily to manual operation；
2, by the control of controller, so that the decline of feeding tooth realizes that simultaneously operating, the decline of feeding tooth make with presser feet lifting
The thin material that must be stuck between tooth socket peels off, while increasing upper material space, conveniently removes material and feeding；
3, the rotation of eccentric shaft is directly driven by connecting rod by driving source, drive mechanism is simple, and driving force is driven more
Stablize, and overall structure is simple, it is compact, it is at low cost；
4, presser feet sensing device structure is relatively simple, and sufficiently in conjunction with the spanner knot on the foot lifting mechanism of sewing machine itself
Structure, so that the decline of feeding tooth realizes that intelligent synchronization, structure are simple and at low cost with presser feet lifting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this sewing machine feed dog control system.
Fig. 2 is the structural schematic diagram of presser feet sensing device.
Fig. 3 is the flow chart of this sewing machine feed dog control method.
In figure, 1, eccentric shaft sleeve；2, eccentric shaft；21, shaft body portion；22, eccentric shaft portion；3, retainer；31, main feed dog
Frame；32, differential cloth-feeding retainer；33, sliding slot；4, the first swing pivot；5, feeding tooth；51, active tooth；52, differential tooth；6, fixed
Screw；7, connecting rod；71, strip groove；8, the first electromagnet；81, sliding axle；9, reset spring；10, spanner；11, the first Hall member
Part；12, the second Hall element；13, magnet steel；14, mounting bracket；15, the second electromagnet.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As illustrated in fig. 1 and 2, this sewing machine feed dog control system, including driving mechanism, driving source, presser feet sensing device
And controller, the controller of the present embodiment is sewing Electrical Control, it is of course also possible to be the controller being separately provided on sewing machine.
Driving mechanism includes eccentric shaft sleeve 1, eccentric shaft 2, connecting rod 7 and the retainer 3 with the first swing pivot 4.The fixed peace of feeding tooth 5
On one end of retainer 3, retainer 3 includes the main feed dog frame 31 and differential cloth-feeding tooth axially arranged side by side along eccentric shaft 2
Frame 32, main feed dog frame 31 are located at right side, and differential cloth-feeding retainer 32 is located at left side；Feeding tooth 5 includes being mounted on main feed dog frame
The active tooth 51 of 31 rear ends and the differential tooth 52 for being mounted on 32 rear end of differential cloth-feeding retainer, the front end of retainer 3 offer sliding slot
33.Eccentric shaft 2 has shaft body portion 21 and eccentric setting in the eccentric shaft portion 22 in shaft body portion 21, the eccentric shaft portion of eccentric shaft 2
22 are located in 3 sliding slot 33 of retainer and are slidably connected with sliding slot 33.Its eccentric shaft 2, the retainer 3 with the first swing pivot 4 and
The structure and interconnected relationship of feeding tooth 5 are that the patent of CN106988030A is identical with disclosed publication No., herein no longer
It is described in detail.
Eccentric shaft sleeve 1 and retaining ring, the shaft body portion 21 1 of eccentric shaft 2 are fixedly installed with by fixing screws 6 on casing
End is threaded through in eccentric shaft sleeve 1, and the other end is threaded through in retaining ring and energy relative eccentric shaft sleeve 1 and retaining ring rotate, eccentric shaft 2
Eccentric shaft portion 22 be located at outside eccentric shaft sleeve 1.Fixing sleeve is gone back in the shaft body portion 21 of eccentric shaft 2 equipped with connecting rod 7, the present embodiment
Driving source be the first electromagnet 8, the first electromagnet 8 with sewing Electrical Control be electrically connected, sewing Electrical Control pass through controls to first
Whether work of the power on/off of electromagnet 8 to control electromagnet, the first electromagnet 8 is fixed on casing by electromagnet stent.
The driving source of the present embodiment can also be the structures such as cylinder or stepper motor other than the first electromagnet 8.7 one end of connecting rod is solid
Surely it is set in the shaft body portion 21 of eccentric shaft 2, the other end is provided with strip groove 71, has on the output shaft of the first electromagnet 8 and slides
Moving axis 81, sliding axle 81 are threaded through realization in strip groove 71 and are slidably connected, and sliding axle 81 can slidably reciprocate in strip groove 71.Partially
Reset spring 9 is also arranged in mandrel 2, one end of reset spring 9 is resisted against on above-mentioned connecting rod 7, and the other end is resisted against above-mentioned gear
On circle, for the reset to connecting rod 7, thus the reset to feeding tooth 5.
Further, presser feet sensing device includes that the first Hall element 11, the second Hall element 12 and being fixedly mounted on is pulled
Magnet steel 13 on hand 10, the first Hall element 11 and the second Hall element 12 are connected on casing by mounting bracket 14 respectively,
It is not drawn into figure for installing the mounting bracket of the second Hall element 12.Spanner 10 is a portion in mechanism for lifting pressre of sewing machine
Part, foot lifting mechanism are the knot such as automatic needle-foot-lifting mode, including pedal, the second electromagnet 15, spanner 10, drive mechanism and presser feet
Structure, 10 one end of spanner are connect with the second electromagnet 15, and the other end is rotatably connected on casing, can be rotated relative to casing.When wanting
When being lifted presser feet, pedal is stepped on, pedal sends out trigger signal and gives sewing Electrical Control, and sewing Electrical Control controls 15 work of the second electromagnet
Make, the second electromagnet 15 driving spanner 10 is swung using the other end of spanner 10 as fulcrum, and the rotation of spanner 10 passes through transmission knot
Structure drives presser feet lifting or resets.First Hall element 11 and the second Hall element 12 of the present embodiment are setting up and down, and with
The other end, that is, fulcrum of above-mentioned spanner 10 is equidistant, and magnet steel 13 is fixedly mounted on the middle part of spanner 10 and the first Hall of direction
12 direction of element 11 and the second Hall element, when original state, i.e., when presser feet is not promoted, magnet steel 13 and the first Hall element 11 are just
To setting, the first Hall element 11 can sense signal；When spanner 10 rotates down, magnet steel 13 is far from the first Hall member
Part 11 is simultaneously mobile to the second Hall element 12, at this point, presser feet is being lifted, the induction of the first Hall element 11 is less than signal, and at this time the
Lifting signal can be issued when one Hall element 11 is by that can sense that signal changes to induction less than signal gives sewing Electrical Control.Spanner
10 when being pivotally lowered into lower limit, and magnet steel 13 is just with 12 face of the second Hall element, and presser feet is lifted to extreme higher position at this time, and second
Hall element 12, which has sensed signal and sent, keeps signal to give sewing Electrical Control.When staff unclamps pedal, sewing is electromechanical
Control control the second electromagnet 15 power-off, entire foot lifting mechanism reset, and spanner 10, which also resets, to be rotated up, and magnet steel 13 is far from second
Hall element 12, it is electromechanical to sewing that the second Hall element 12 sends reset signal when sensing transformation of the signal to no signal
Control.The presser feet sensing device of the present embodiment is the Hall sensor detection mode using Hall element and magnet steel 13, certainly may be used
In a manner of using close switch, infrared sensor etc..
In order to save cost in the present embodiment, controller is sewing Electrical Control, in sewing Electrical Control design have decline module,
Maintenance module and reseting module, wherein decline module is used to control 8 task driven of the first electromagnet when receiving lifting signal
Feeding tooth 5 is decreased below needle plate upper surface；Maintenance module is used to control the work of the first electromagnet 8 when receiving and keeping signal
Feeding tooth 5 is set to maintain present level position constant；Reseting module for controlling 8 work of the first electromagnet when it receives the reset signal it
Work makes feeding tooth 5 be reset to elemental height.The elemental height of feeding tooth 5 is that its feeding tooth 5 is located above needle plate after sewing thin material
When height.Specifically, decline module is for starting the work of the first electromagnet 8 when receiving above-mentioned lifting signal and gradually increasing
Add the input current of the first electromagnet 8 to drive feeding tooth 5 to be decreased below needle plate upper surface；Maintenance module is used for when reception
It is constant to make feeding tooth 5 maintain present level position constant that 8 input current of the first electromagnet is controlled when to above-mentioned holding signal；
Reseting module is used to control the input current instantaneous interruption of the first electromagnet 8 when receiving above-mentioned reset signal or gradually becomes
It is small until to 0 make feeding tooth 5 reset.Decline module, maintenance module and reseting module in the present embodiment can be by hardware Lai real
It is existing, it can also be realized by computer program, in order to save cost, optimal scheme is realized using computer program,
The principle and specific procedure of realization are the prior art, no longer narration in detail.Specific control mode is as shown in Figure 3.
First electromagnet 8 drives the decline of feeding tooth 5 or the working principle resetted as follows: the first electromagnet 8, which is powered, inputs electricity
When stream, the output shaft of the first electromagnet 8 stretches out drive link 7 and the shaft body portion 21 of eccentric shaft 2 rotates clockwise, eccentric shaft 2
Eccentric shaft portion 22 rotate clockwise drive retainer 3 rotated clockwise around the first swing pivot 4, thus drive feeding tooth 5 decline；
When the power-off of the first electromagnet 8 or reduction input current, under the effect of reset spring 9, retainer 3 is counterclockwise around the first swing pivot 4
Rotation resets so that feeding tooth 5 be driven to rise.Its specific connecting rod 7 by eccentric shaft 2, retainer 3 drive feeding tooth 5 rising or
The working principle of decline is that the patent of CN106988030A is identical with disclosed publication No., and in this not go into detail.
The first electromagnet 8 for driving feeding tooth 5 to decline is controlled by sewing Electrical Control, so as to realize intelligent control
It adjusts, and accuracy is more preferable, it is more convenient to operate, and is not necessarily to manual operation；Meanwhile presser feet sensing device be able to detect presser feet lifting with
Not no and whether be raised to highest point, concurrent trigger signal gives sewing Electrical Control, and sewing Electrical Control is enabled to control the first electricity
Magnet 8 makes corresponding response in time, to realize that the decline of feeding tooth 5 and presser feet lifting realize that simultaneously operating, the decline of feeding tooth 5 make
The thin material that must be stuck between tooth socket peels off, while increasing upper material space, conveniently removes material and feeding.
Embodiment two
As shown in figure 3, this sewing machine feed dog control method includes:
A driving source is provided, for driving feeding tooth 5 to be decreased below needle plate upper surface by driving mechanism；
A presser feet sensing device being provided, lifting signal is issued when for detecting presser feet lifting, detects that presser feet is lifted
It is issued when rising to highest point and keeps signal, detected and issue reset signal when presser feet is declined and resetted by highest point；
A controller is provided, for controlling driving source task driven feeding tooth 5 when receiving above-mentioned lifting signal
It is decreased below needle plate upper surface；Driving source work is controlled when receiving above-mentioned holding signal makes feeding tooth 5 maintain current height
It is constant to spend position；Driving source work is controlled when receiving above-mentioned reset signal resets feeding tooth 5.
Start driving source when receiving above-mentioned lifting signal to work and be stepped up the input current of driving source to drive
Dynamic feeding tooth 5 declines；It is constant to make the maintenance of feeding tooth 5 work as that driving source input current is controlled when receiving above-mentioned holding signal
Preceding height and position is constant；The input current instantaneous interruption of driving source is controlled when receiving above-mentioned reset signal or is gradually become smaller
Until resetting feeding tooth 5 to 0.The controller of the present embodiment is sewing Electrical Control, and driving source is the first electromagnet 8, presser feet sense
Answer device identical as the presser feet sensing device of embodiment one, structure and control method are the same as example 1, no longer superfluous herein
It states.
Embodiment three
This sewing machine includes foot lifting mechanism, and foot lifting mechanism includes the second electromagnet 15 and spanner 10,10 one end of spanner
With the output axis connection of the second electromagnet 15, the other end be may be rotatably mounted on casing, further include that the sewing machine of embodiment one is sent
Expect tooth control system.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of sewing machine feed dog control method characterized by comprising
A driving source is provided, for being decreased below needle plate upper surface by driving mechanism driving feeding tooth (5)；
A presser feet sensing device is provided, lifting signal is issued when for detecting presser feet lifting, detecting that presser feet is raised to
It is issued when highest point and keeps signal, detected and issue reset signal when presser feet is declined and resetted by highest point；
A controller is provided, for controlling under driving source task driven feeding tooth (5) when receiving above-mentioned lifting signal
It is brought down below needle plate upper surface；Driving source work is controlled when receiving above-mentioned holding signal makes feeding tooth (5) to remain current high
It is constant to spend position；Driving source work is controlled when receiving above-mentioned reset signal resets feeding tooth (5).
2. a kind of sewing machine feed dog control method according to claim 1, which is characterized in that the controller, which is worked as, to be connect
Start driving source when receiving above-mentioned lifting signal to work and be stepped up the input current of driving source to drive under feeding tooth (5)
Drop；It is constant to make feeding tooth (5) to maintain present level position that driving source input current is controlled when receiving above-mentioned holding signal
It sets constant；The input current instantaneous interruption of driving source is controlled when receiving above-mentioned reset signal or is gradually become smaller until to 0
Reset feeding tooth (5).
3. a kind of sewing machine feed dog control system, including driving mechanism, the driving mechanism connect with feeding tooth (5) and can drive
Dynamic feeding tooth (5) are decreased below needle plate upper surface, which is characterized in that further include:
Driving source connect with above-mentioned driving mechanism and above-mentioned driving mechanism is driven to work；
Presser feet sensing device issuing lifting signal, detecting hair when presser feet is raised to highest point when for detecting presser feet lifting
Signal is kept out, is detected and is issued reset signal when presser feet is declined and resetted by highest point；
Controller is electrically connected with above-mentioned driving source and presser feet sensing device respectively, receives above-mentioned lifting signal time control for working as
Driving source task driven feeding tooth (5) processed is decreased below needle plate upper surface；Driving is controlled when receiving above-mentioned holding signal
Source work makes feeding tooth (5) to maintain present level position constant；Driving source work is controlled when receiving above-mentioned reset signal to be made
Feeding tooth (5) resets.
4. a kind of sewing machine feed dog control system according to claim 3, which is characterized in that the driving mechanism packet
Eccentric shaft sleeve (1), eccentric shaft (2), connecting rod (7) and the retainer (3) with the first swing pivot (4) are included, feeding tooth (5) is fixed
It is mounted on one end of retainer (3), is offered sliding slot (33) on the retainer (3), the eccentric shaft (2) has shaft body portion
(21) and eccentric setting is in the eccentric shaft portion (22) of shaft body portion (21), and the eccentric shaft portion (22) of the eccentric shaft (2) is located at tooth
It is slidably connected in frame (3) sliding slot (33) and with sliding slot (33), the eccentric shaft sleeve (1) is fixed on casing and is set in bias
It is relatively rotated on axis (2) and with eccentric shaft (2), connecting rod (7) one end is connected in the shaft body portion (21) of eccentric shaft (2), another
End is connect with driving source, is also arranged with reset spring (9) and retaining ring, the gear in the shaft body portion (21) of the eccentric shaft (2)
Circle is by being fixed on casing, and described reset spring (9) one end is resisted against on above-mentioned connecting rod (7), and the other end is resisted against on retaining ring.
5. a kind of sewing machine feed dog control system according to claim 3, which is characterized in that the presser feet incudes dress
It sets including the first Hall element (11), the second Hall element (12) and the magnet steel (13) being fixedly mounted on spanner (10), spanner
(10) it is installed in rotation on casing and is used to that presser feet to be driven to be lifted, the first Hall element (11) and the second Hall element (12)
It is connected on casing by mounting bracket (14) respectively, and when original state, i.e., when presser feet is not lifted, first Hall element
(11) it is arranged with above-mentioned magnet steel (13) face；When presser feet is raised to highest point, second Hall element (12) and above-mentioned magnetic
The setting of steel (13) face.
6. a kind of sewing machine feed dog control system according to claim 3 or 4 or 5, which is characterized in that the control
Device includes:
Decline module, is decreased below for controlling driving source task driven feeding tooth (5) when receiving above-mentioned lifting signal
Needle plate upper surface；
Maintenance module makes feeding tooth (5) to maintain present level for controlling driving source work when receiving above-mentioned holding signal
Position is constant；
Reseting module makes feeding tooth (5) be reset to initial height for controlling driving source work when receiving above-mentioned reset signal
Degree.
7. a kind of sewing machine feed dog control system according to claim 6, which is characterized in that the decline module is used
Work in starting driving source when receiving above-mentioned lifting signal and be stepped up the input current of driving source to drive feeding
Tooth (5) is decreased below needle plate upper surface；The maintenance module is used to control driving source when receiving above-mentioned holding signal defeated
It is constant to make feeding tooth (5) to maintain present level position constant to enter electric current；The reseting module is used for above-mentioned multiple when receiving
The input current instantaneous interruption of driving source is controlled when the signal of position or is gradually become smaller until resetting feeding tooth (5) to 0.
8. a kind of sewing machine feed dog control system according to claim 4, which is characterized in that the driving source is the
One electromagnet (8), first electromagnet (8) are fixed on casing by electromagnet stent, and one end of the connecting rod (7) is opened
Have strip groove (71), there are sliding axle (81) on the output shaft of first electromagnet (8), sliding axle (81) is threaded through strip groove
(71) it realizes and is slidably connected in.
9. a kind of sewing machine feed dog control system according to claim 3, which is characterized in that the controller is seam
It threads Electrical Control.
10. a kind of sewing machine, including foot lifting mechanism, the foot lifting mechanism includes the second electromagnet (15) and above-mentioned spanner
(10), the output axis connection of spanner (10) one end and the second electromagnet (15), the other end may be rotatably mounted on casing, feature
It is: further includes any sewing machine feed dog control system in the claims 3~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357601.2A CN109267246A (en) | 2018-11-15 | 2018-11-15 | A kind of sewing machine feed dog control method, system and sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357601.2A CN109267246A (en) | 2018-11-15 | 2018-11-15 | A kind of sewing machine feed dog control method, system and sewing machine |
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| CN109267246A true CN109267246A (en) | 2019-01-25 |
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| CN201811357601.2A Pending CN109267246A (en) | 2018-11-15 | 2018-11-15 | A kind of sewing machine feed dog control method, system and sewing machine |
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| CN111607911A (en) * | 2019-02-26 | 2020-09-01 | 杰克缝纫机股份有限公司 | Sewing machine and automatic device of dodging of pay-off tooth thereof |
| CN112626729A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Feed lifting tooth height intelligent adjusting mechanism and sewing machine |
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| CN112626730A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112796042A (en) * | 2019-11-14 | 2021-05-14 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112853628A (en) * | 2019-11-28 | 2021-05-28 | 杰克缝纫机股份有限公司 | Lower supply mechanism for flat seaming machine and flat seaming machine |
| CN112921507A (en) * | 2021-01-21 | 2021-06-08 | 浙江沪龙科技股份有限公司 | Control method for preventing cloth from moving caused by lifting and placing presser foot during mechanical linkage |
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| CN111607911A (en) * | 2019-02-26 | 2020-09-01 | 杰克缝纫机股份有限公司 | Sewing machine and automatic device of dodging of pay-off tooth thereof |
| CN111607912A (en) * | 2019-02-26 | 2020-09-01 | 杰克缝纫机股份有限公司 | Feeding tooth height adjusting mechanism of sewing machine |
| CN112626730B (en) * | 2019-09-24 | 2021-12-28 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112626729A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Feed lifting tooth height intelligent adjusting mechanism and sewing machine |
| CN112626737A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Transmission clutch mechanism and sewing machine |
| CN112626730A (en) * | 2019-09-24 | 2021-04-09 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112796042A (en) * | 2019-11-14 | 2021-05-14 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN112796042B (en) * | 2019-11-14 | 2022-11-11 | 杰克科技股份有限公司 | Sewing machine |
| CN112853628A (en) * | 2019-11-28 | 2021-05-28 | 杰克缝纫机股份有限公司 | Lower supply mechanism for flat seaming machine and flat seaming machine |
| CN112853628B (en) * | 2019-11-28 | 2022-07-05 | 杰克科技股份有限公司 | Lower supply mechanism for flat seaming machine and flat seaming machine |
| CN113046933A (en) * | 2019-12-26 | 2021-06-29 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN113046933B (en) * | 2019-12-26 | 2022-06-21 | 杰克科技股份有限公司 | Sewing machine |
| CN112921507B (en) * | 2021-01-21 | 2021-12-17 | 浙江沪龙科技股份有限公司 | Control method for preventing cloth from moving caused by lifting and placing presser foot during mechanical linkage |
| CN112921507A (en) * | 2021-01-21 | 2021-06-08 | 浙江沪龙科技股份有限公司 | Control method for preventing cloth from moving caused by lifting and placing presser foot during mechanical linkage |
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