CN205874675U - Presser foot lifter device for sewing machine - Google Patents
Presser foot lifter device for sewing machine Download PDFInfo
- Publication number
- CN205874675U CN205874675U CN201620420861.XU CN201620420861U CN205874675U CN 205874675 U CN205874675 U CN 205874675U CN 201620420861 U CN201620420861 U CN 201620420861U CN 205874675 U CN205874675 U CN 205874675U
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- China
- Prior art keywords
- presser foot
- lever
- presser
- lifter
- motor
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model provides a presser foot lifter device for sewing machine, including motor, drive assembly and presser foot subassembly, the motor is fixed on sewing machine's casing, drive assembly respectively with the rotation axis of motor with the presser foot subassembly is connected, the motor passes through drive assembly drives the presser foot subassembly lifts up and descends. The utility model provides a pair of presser foot lifter device for sewing machine to the motor has been solved and has been lifted the problem that the common noise of presser foot device is big, falling speed damages the seam material at the excessive speed automatically when adopting the electro -magnet as the power supply among the prior art, moreover as the power supply the utility model discloses a presser foot device is lifted and automatic the adjustable of presser foot height of lifting can also be realized.
Description
Technical field
This utility model belongs to sewing machine technique field, relates to a kind of presser foot lifting device for sewing machine.
Background technology
Along with developing rapidly of science and technology, the mechanization degree that clothing manufacture is more and more higher, manufactures technical field at clothing, with
The sewing device that industrial sewing machine is main is the most, such as flat seam machine, overedger, flat seaming machine etc..At present, industrial sewing machine is entering
During material, the operation lifted and depress of presser feet typically has mechanical type knee joint control presser foot lifter and automatic needle-foot-lifting two ways, existing skill
The automatic needle-foot-lifting device of art directly makes presser feet lift often through solenoid actuated pull bar, then sewing is put into presser feet and
Between needle plate, then put down presser feet and make presser feet push down sewing, sew the most again.
Employing electric magnet is as the automatic needle-foot-lifting device of power source, because lifting by solenoid actuated pull bar of presser feet is straight
Connect driving, cause that the driving force of electric magnet is very big, volume is the biggest, thus cause the volume of industrial sewing machine big, impact industry
Sewing machine attractive in appearance, is also unfavorable for the packaging of industrial sewing machine, transport, and the deployment cost of electric magnet is the highest, also can increase
The manufacturing cost of automatic needle-foot-lifting device；On the other hand, when using electric magnet as power source, there is making an uproar of automatic needle-foot-lifting device
Sound is very big, the decrease speed of presser foot lifter is too fast causes damaging many defects such as sewing, automatic needle-foot-lifting height be unadjustable.
The mechanism of the mechanical type knee joint control presser foot lifter used in prior art, the operational torque of this mechanism is big so that operator
The labor intensity of member is big, operation is hard.
Utility model content
The purpose of this utility model is to provide a kind of presser foot lifting device for sewing machine, to solve to adopt present in prior art
, decrease speed too fast damage sewing, auto lifting pressure big as the noise that the automatic needle-foot-lifting device of power source is common with electric magnet
The problems such as foot height is unadjustable.
For solving above-mentioned technical problem, the technical scheme that this utility model provides is as follows:
This utility model provides a kind of presser foot lifting device for sewing machine, including motor, transmission component and presser foot component,
Described motor is fixed in the casing of sewing machine；
Described transmission component is connected with the rotary shaft of described motor and described presser foot component respectively；
Described motor drives described presser foot component lift and decline by described transmission component.
Further, described transmission component includes motor crank, connects lever before assembly and presser foot lifter,
Described motor crank one end is fixed in the rotary shaft of described motor；
Described connection assembly respectively with the other end of described motor crank and described presser foot lifter before lever one end hinged；
Before described presser foot lifter, lever is fixing on the housing by an axle center, and can be around described axe movement；
Before described presser foot lifter, the lever other end is hinged with described presser foot component；
During the work of described motor, described motor crank rotates, and drives described connection component movement and lifts pressure described in passing to
Lever before foot, before described presser foot lifter, lever motion drives described presser foot component lift and decline.
Preferably, before described presser foot lifter, lever is articulated with in described casing by an axle center.
Further, described connection assembly includes lever and presser foot lifter connecting rod after crank connecting link, presser foot lifter,
The two ends of described crank connecting link respectively with the described motor crank other end and described presser foot lifter after lever one end hinged；
After described presser foot lifter, lever is fixing on the housing by an axle center, and can be around described axe movement；
Described presser foot lifter connecting rod respectively with described presser foot lifter after before the lever other end and described presser foot lifter lever one end hinged.
Preferably, before described presser foot lifter, lever is articulated with in described casing by an axle center.
Further, described presser foot component includes presser feet lifter plate, depression bar, presser bar spring bracket, back-moving spring and presser feet,
Before one end of described presser feet lifter plate and described presser foot lifter, the lever other end is hinged, another of described presser feet lifter plate
The end face of end is fitted with described presser bar spring bracket；
Described depression bar is fixed with described presser bar spring bracket, and the end face of its one end is fitted with described back-moving spring one end, the other end
It is connected with described presser feet.
Further, also include electric machine controller, knee joint control action bars and knee joint control processing unit,
Described knee joint control processing unit receives the crank degree signal of described knee joint control action bars and processes, and sends process
Signal is to described electric machine controller；
Described electric machine controller controls the duty of described motor according to described process signal.
Further, also include that height sensors, described height sensors are disposed in proximity to the described of described presser bar spring bracket
In casing, described height sensors receives the height value variable signal of described presser bar spring bracket, and signal passes to described motor
Controller.
Compared with prior art, advantage of the present utility model is:
A kind of presser foot lifting device for sewing machine that this utility model provides, using motor as power source, solves prior art
Middle employing electric magnet is big as the noise that automatic needle-foot-lifting device during power source is common, the asking of decrease speed too fast damage sewing
Topic, and presser foot lifting device of the present utility model can also realize the scalable of automatic needle-foot-lifting height.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of presser foot lifting device for sewing machine that this utility model provides；
Fig. 2 is the structural representation of the presser foot component of a kind of presser foot lifting device for sewing machine that this utility model provides；
Fig. 3 is the structural representation of a kind of presser foot lifting device for sewing machine that this utility model provides；
Fig. 4 is the structural representation of the knee joint control part of a kind of presser foot lifting device for sewing machine that this utility model provides.
Wherein, 1-motor；2-transmission component；3-presser foot component；4-knee joint control action bars；5-knee joint control processing unit；6-height
Induction apparatus；21-motor crank；20-connects assembly；22-crank connecting link；Lever after 23-presser foot lifter；24-presser foot lifter connecting rod；25-
Lever after presser foot lifter；31-presser foot lifter lifter plate；32-depression bar；33-presser bar spring bracket；34-back-moving spring；35-presser feet.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, a kind of presser foot lifting device for sewing machine that the utility model proposes is made into one
Step describes in detail.According to following explanation and claims, advantage of the present utility model and feature will be apparent from.It should be noted that
It is that accompanying drawing all uses the form simplified very much and all uses non-ratio accurately, only in order to aid in illustrating this reality conveniently, lucidly
By the purpose of new embodiment.
This utility model provides a kind of presser foot lifting device for sewing machine, and it includes motor 1, transmission component 2 and presser foot component
3,
Described motor 1 is fixed in the casing of sewing machine；
Described transmission component 2 is connected with the rotary shaft of described motor and described presser foot component 3 respectively；
Described motor 1 drives described presser foot component 3 lift and decline by described transmission component 2.This utility model is with electricity
Machine, as power source, is different from employing electric magnet common on market as power source, can solve to use electric magnet as dynamic
Move during power source that the common noise of presser foot lifting device is big, decrease speed too fast damage sewing, automatic needle-foot-lifting height are unadjustable
Problem.
Further, described transmission component 2 includes motor crank 21, connects lever 25 before assembly 20 and presser foot lifter,
Described motor crank 21 one end is fixed in the rotary shaft of described motor 1；
Described connection assembly 20 respectively with the other end of described motor crank 21 and described presser foot lifter before lever 25 one end hinge
Connect；
Before described presser foot lifter, lever 25 is fixing on the housing by an axle center M, and can move around described axle center M；
Before described presser foot lifter, lever 25 other end is hinged with described presser foot component 3；
When described motor 1 works, described motor crank 21 rotates, and drives described connection assembly 20 to move and passes to described
Lever 25 before presser foot lifter, before described presser foot lifter, lever 25 motion drives described presser foot component 3 lift and decline.In the present embodiment,
The rotary motion of electric machine rotational axis is passed out by motor crank 21, by connecting transmission and the conversion of assembly 20, is passed
Passing before presser foot lifter after lever 25, before presser foot lifter, lever 25 can move around its axle center M, thus drive depression bar assembly 3 to lift or under
Fall.
Preferably, before described presser foot lifter, lever 25 is articulated with in described casing by an axle center M.It should be noted that, lift
Before presser feet, lever 25 is not limited in hinged with the connected mode of casing, as long as lever 25 can be around its axle before enabling to presser feet
Heart M rotates.
Further, described connection assembly 20 includes lever 23 and presser foot lifter connecting rod 24 after crank connecting link 22, presser foot lifter,
The two ends of described crank connecting link 22 respectively with described motor crank 21 other end and described presser foot lifter after lever 23 1
Hold hinged；
After described presser foot lifter, lever 23 is fixing on the housing by an axle center S, and can move around described axle center S；
Described presser foot lifter connecting rod 24 respectively with described presser foot lifter after lever 25 1 before lever 23 other end and described presser foot lifter
Hold hinged.The setting connecting assembly 20 in the present embodiment, mainly converts the rotary motion of motor crank 21 and passes
Pass presser foot lifter connecting rod 24, thus before driving presser foot lifter, lever 25 rotates around its axle center M, therefore connect the structure of assembly 20 not
It is only limitted to the structure mentioned in the present embodiment, as long as the structure connecting assembly 20 disclosure satisfy that the rotary motion of motor crank 21
Pass to lever 25 before presser foot lifter.
Preferably, after described presser foot lifter, lever 23 is articulated with in described casing by an axle center S.
Further, described presser foot component 3 includes presser feet lifter plate 31, depression bar 32, presser bar spring bracket 33, back-moving spring 34 and
Presser feet 35,
Before one end of described presser feet lifter plate 31 and described presser foot lifter, lever 25 other end is hinged, described presser feet lifter plate 31
The end face of the other end fit with described presser bar spring bracket 33；When before described presser foot lifter, lever 25 moves around its axle center M, can drive
Described presser feet lifter plate 31 rises, now, and presser bar spring bracket 33 described in the end face meeting jacking of presser feet lifter plate 31, thus drive described
Presser bar spring bracket 33 rises；
Described depression bar 32 is fixed with described presser bar spring bracket 33, and the end face of its one end is fitted with described back-moving spring 34 one end,
The other end is connected with described presser feet 35.
Further, described presser foot lifting device for sewing machine also includes electric machine controller (not marking out on figure), knee joint control operation
Bar 4 and knee joint control processing unit 5,
Described knee joint control processing unit 5 receives the crank degree signal of described knee joint control action bars 4 and processes, and at transmission
Reason signal is to described electric machine controller；
Described electric machine controller controls the duty of described motor 1 according to described process signal.This programme achieves knee joint
Control is lifted and is bled off pressure foot, and when knee touches described knee joint control stick 4, knee joint control stick 4 can turn an angle, and processes through knee joint control
Can send process signal to electric machine controller after the process of unit 5, described electric machine controller can send command adapted thereto, controls institute
State the rotation of motor 1, thus realize the lifting to presser feet 35 and decline, and the rotational angle that knee joint control stick 4 is different, it drives
The height that presser feet 35 promotes also can be different, thus lift bleed off pressure while foot-propelled makees realizing knee joint control, it is achieved automatic needle-foot-lifting height
Scalable.
Further, described presser foot lifting device for sewing machine also includes that height sensors 6, described height sensors 6 are arranged at
In the described casing of described presser bar spring bracket 33, described height sensors 6 receives the height value change of described presser bar spring bracket 33
Signal, thus obtain the raising height value of presser feet, and signal is passed to described electric machine controller.Raising height when presser feet 35
When being 0, position on the basis of the rotary shaft location of described motor 1.
A kind of presser foot lifting device for sewing machine that this utility model provides, its work process realizing automatic needle-foot-lifting is as follows:
When described electric machine controller sends pressure foot lifting signal, the rotary shaft of described motor 1 with reference position as starting point,
Rotating counterclockwise certain angle, now, the motor crank 21 being fixed in the rotary shaft of motor 1 swings identical angle therewith,
After making presser foot lifter by crank connecting link 22, lever 23 rotates clockwise around center of rotation S, makes presser foot lifter by presser foot lifter connecting rod 24
Front lever 25 rotates counterclockwise around center of rotation M, thus drives presser feet lifter plate 31 to promote, and the lifting of presser feet lifter plate 31 drives
Described presser bar spring bracket 33 promotes, and also can promote with the fixing depression bar 32 of presser bar spring bracket 33, thus drives presser feet 35 to promote relatively
The height answered；
When described electric machine controller sends presser feet dropping signal, the rotary shaft of described motor 1 rotates back into reference position, this
Time, after described presser foot lifter, before lever 23, presser foot lifter, lever 25 can go back to original position therewith, and presser feet lifter plate 31 returns to original position,
Now, depression bar 32 can drop to origin-location, thus realize the down maneuver of presser feet 35 under the effect of back-moving spring 34.
A kind of presser foot lifting device for sewing machine of the present utility model can also realize knee joint control operation, when knee touches described knee joint control
During stick 4, knee joint control stick 4 can rotate certain angle, and knee joint control processing unit 5 receives the corner of described knee joint control stick 4
Can process after signal, and pass it to described electric machine controller, described electric machine controller can send corresponding instruction to
Described motor 1, described motor 1 is with reference position for the angle that starting point concomitant rotation is corresponding, the most above-mentioned lifting pressre of sewing machine dress
The working method put, it is achieved the automatic lifting of presser feet 35 and decline.And the rotational angle that knee joint control stick 4 is different, described motor
Controller is sent to the work order of motor 1 and also differs, and the rotary shaft anglec of rotation of motor 1 also can be different, it is achieved presser feet 35
The height promoted also can be different, thus lift bleed off pressure while foot-propelled makees realizing knee joint control, it is achieved automatic needle-foot-lifting height adjustable
Joint.
A kind of presser foot lifting device for sewing machine that this utility model provides, using motor as power source, solves prior art
Middle employing electric magnet is big as the noise that automatic needle-foot-lifting device during power source is common, the asking of decrease speed too fast damage sewing
Topic, and presser foot lifting device of the present utility model can also realize the scalable of automatic needle-foot-lifting height.
Foregoing description is only the description to this utility model preferred embodiment, not any limit to this utility model scope
Fixed, any change that the those of ordinary skill in this utility model field does according to the disclosure above content, modification, belong to right and want
Seek the protection domain of book.
Claims (6)
1. a presser foot lifting device for sewing machine, it is characterised in that include motor, transmission component and presser foot component,
Described motor is fixed in the casing of sewing machine；
Described transmission component is connected with the rotary shaft of described motor and described presser foot component respectively；
Described motor drives described presser foot component lift and decline by described transmission component；
Described transmission component includes motor crank, connects lever before assembly and presser foot lifter,
Described motor crank one end is fixed in the rotary shaft of described motor；
Described connection assembly respectively with the other end of described motor crank and described presser foot lifter before lever one end hinged；
Before described presser foot lifter, lever is articulated with in described casing by an axle center, and can be around described axe movement；
Before described presser foot lifter, the lever other end is hinged with described presser foot component；
During the work of described motor, described motor crank rotates, before driving described connection component movement and passing to described presser foot lifter
Lever, before described presser foot lifter, lever motion drives described presser foot component lift and decline.
A kind of presser foot lifting device for sewing machine the most according to claim 1, it is characterised in that described connection assembly includes crank
Lever and presser foot lifter connecting rod after connecting rod, presser foot lifter,
The two ends of described crank connecting link respectively with the described motor crank other end and described presser foot lifter after lever one end hinged；
After described presser foot lifter, lever is fixing on the housing by an axle center, and can be around described axe movement；
Described presser foot lifter connecting rod respectively with described presser foot lifter after before the lever other end and described presser foot lifter lever one end hinged.
A kind of presser foot lifting device for sewing machine the most according to claim 2, it is characterised in that before described presser foot lifter, lever passes through
One axle center is articulated with in described casing.
A kind of presser foot lifting device for sewing machine the most according to claim 1, it is characterised in that described presser foot component includes presser feet
Lifter plate, depression bar, presser bar spring bracket, back-moving spring and presser feet,
Before one end of described presser feet lifter plate and described presser foot lifter, the lever other end is hinged, the other end of described presser feet lifter plate
End face and described presser bar spring bracket fit；
Described depression bar is fixed with described presser bar spring bracket, and the end face of its one end is fitted with described back-moving spring one end, the other end and institute
State presser feet to connect.
A kind of presser foot lifting device for sewing machine the most according to claim 4, it is characterised in that also include electric machine controller, knee joint
Control action bars and knee joint control processing unit,
Described knee joint control processing unit receives the crank degree signal of described knee joint control action bars and processes, and sends process signal
To described electric machine controller；
Described electric machine controller controls the duty of described motor according to described process signal.
A kind of presser foot lifting device for sewing machine the most according to claim 5, it is characterised in that also include height sensors, institute
Stating height sensors to be disposed in proximity in the described casing of described presser bar spring bracket, described height sensors receives described presser bar spring bracket
Height value variable signal, and signal is passed to described electric machine controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620420861.XU CN205874675U (en) | 2016-05-10 | 2016-05-10 | Presser foot lifter device for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620420861.XU CN205874675U (en) | 2016-05-10 | 2016-05-10 | Presser foot lifter device for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205874675U true CN205874675U (en) | 2017-01-11 |
Family
ID=57687812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620420861.XU Expired - Fee Related CN205874675U (en) | 2016-05-10 | 2016-05-10 | Presser foot lifter device for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205874675U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978674A (en) * | 2017-04-22 | 2017-07-25 | 浙江美机缝纫机有限公司 | The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
| CN110219101A (en) * | 2019-03-18 | 2019-09-10 | 浙江翔科缝纫机股份有限公司 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
| CN112048846A (en) * | 2020-09-08 | 2020-12-08 | 拓卡奔马机电科技有限公司 | Motor-driven lifting and pressing wire shearing mechanism of button sewing machine |
-
2016
- 2016-05-10 CN CN201620420861.XU patent/CN205874675U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978674A (en) * | 2017-04-22 | 2017-07-25 | 浙江美机缝纫机有限公司 | The automatic needle-foot-lifting of sewing machine and automatically adjust foot pressure device |
| CN109706632A (en) * | 2019-03-08 | 2019-05-03 | 杰克缝纫机股份有限公司 | A kind of control method of sewing-machine automatic needle-foot-lifting |
| CN110219101A (en) * | 2019-03-18 | 2019-09-10 | 浙江翔科缝纫机股份有限公司 | A kind of sewing machine and presser foot lifter thread releasing mechanism |
| CN112048846A (en) * | 2020-09-08 | 2020-12-08 | 拓卡奔马机电科技有限公司 | Motor-driven lifting and pressing wire shearing mechanism of button sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20200510 |