CN210031104U - Thread trimming and presser foot lifting mechanism and sewing machine - Google Patents
Thread trimming and presser foot lifting mechanism and sewing machine Download PDFInfo
- Publication number
- CN210031104U CN210031104U CN201920818961.1U CN201920818961U CN210031104U CN 210031104 U CN210031104 U CN 210031104U CN 201920818961 U CN201920818961 U CN 201920818961U CN 210031104 U CN210031104 U CN 210031104U
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- presser foot
- eccentric wheel
- foot lifting
- connecting rod
- trimming
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- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- 238000009958 sewing Methods 0.000 title claims abstract description 16
- 238000009966 trimming Methods 0.000 title claims description 91
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 10
- 230000009471 action Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of sewing equipment, in particular to a thread cutting and presser foot lifting mechanism and a sewing machine; an eccentric wheel is arranged on a rotating shaft of the motor, the eccentric wheel comprises a presser foot lifting eccentric section and a thread shearing eccentric section, a presser foot lifting connecting rod is arranged on the presser foot lifting eccentric section, a thread shearing connecting rod is arranged on the thread shearing eccentric section, the outer ends of the presser foot lifting connecting rod and the thread shearing connecting rod are both arranged in a suspended mode, the suspended ends are respectively located on two sides of the eccentric wheel, one end of the presser foot lifting connecting rod is connected with the suspended end of the presser foot lifting connecting rod in a sliding mode, the other end of the presser foot lifting connecting rod is connected with a rear lever of the presser foot lifting assembly, the middle of the presser foot lifting connecting rod is connected with the machine shell in a rotating mode, one end of the thread shearing connecting plate is connected with the suspended end of the thread shearing connecting rod in a sliding mode, the other end of the thread shearing connecting; the utility model discloses a motor is installed on the casing, and is little to sewing machine institutional advancement, and the commonality is strong.
Description
The technical field is as follows:
the utility model belongs to the technical field of make up equipment, refer in particular to a trimming lifts presser foot mechanism and sewing machine.
Background art:
a thread trimming mechanism and a presser foot lifting mechanism on a traditional flat sewing machine are two mutually independent mechanisms, and are respectively driven by a thread trimming electromagnet to act, and the presser foot lifting electromagnet drives the presser foot lifting mechanism to act. The electromagnet serving as a driving source has the defects of inflexibility in stroke change, high noise and the like, and the two driving sources are complex in driving structure, large in occupied space and high in cost.
In order to improve the phenomenon, the chinese patent application (application publication No. CN 106948096 a) discloses a thread trimming and presser foot lifting structure of a sewing machine, which comprises a double-end motor, wherein a left motor shaft of the double-end motor is connected with a thread trimming cam assembly, the thread trimming cam assembly is connected with a thread trimming mechanism, a right motor shaft of the double-end motor is connected with the presser foot lifting mechanism through a presser foot lifting crank assembly, and a pressing part abutted against a mandril is arranged on the presser foot lifting crank. When the structure is used for executing the thread trimming action, the presser foot lifting mechanism executes the idle stroke, and on the contrary, when the presser foot lifting action is executed, the thread trimming mechanism executes the idle stroke.
However, the above structure has the following drawbacks: 1. the double-head motor is arranged on the bottom plane of the bottom plate, and the oil pan structure needs to be improved; 2. under the working state of lifting the presser foot, the motor is in a high-load state, and the motor generates high temperature and loses steps, so that frequent faults occur, and the service life of the motor is finally shortened.
The invention content is as follows:
the utility model aims at providing a little, the little trimming of motor load lifts presser foot mechanism and sewing machine to sewing machine institutional advancement.
The utility model discloses a realize like this:
one of the purposes of the utility model is to provide a thread trimming and presser foot lifting mechanism, which comprises a thread trimming component, a presser foot lifting component and a motor, wherein an eccentric wheel is arranged on a rotating shaft of the motor, the eccentric wheel comprises a presser foot lifting eccentric section and a thread trimming eccentric section, a presser foot lifting connecting rod is arranged on the presser foot lifting eccentric section, a thread cutting connecting rod is arranged on the thread cutting eccentric section, the outer ends of the presser foot lifting connecting rod and the thread cutting connecting rod are both arranged in a suspended manner, and the suspended ends are respectively positioned at the two sides of the eccentric wheel, one end of the pressure foot lifting connecting rod is connected with the suspended end of the pressure foot lifting connecting rod in a sliding way, the other end of the pressure foot lifting connecting rod is connected with the rear lever of the pressure foot lifting assembly, the middle part of the pressure foot lifting connecting rod is rotatably connected with the machine shell, one end of the thread cutting connecting plate is connected with the suspended end of the thread cutting connecting rod in a sliding way, the other end of the thread cutting connecting plate is rotatably connected on the machine shell, the wire shearing connecting plate is also provided with a branch part, and the branch part is connected with the wire shearing cam of the wire shearing assembly through a steel wire.
In the trimming presser foot lifting mechanism, a long row groove is formed in the suspended end of the presser foot lifting connecting rod, one end of the presser foot lifting connecting rod is connected with one end of the presser foot lifting connecting pin, and the other end of the presser foot lifting connecting rod is arranged in the long row groove in a sliding mode.
In the above thread trimming presser foot lifting mechanism, the suspended end of the thread trimming connecting rod is provided with a long row groove, one end of the thread trimming connecting plate is connected with one end of the thread trimming connecting pin, and the other end of the thread trimming connecting plate is slidably arranged in the long row groove.
In the trimming presser foot lifting mechanism, the eccentric wheel comprises a first eccentric wheel and a second eccentric wheel, the first eccentric wheel and the second eccentric wheel are of a split structure and are sequentially and fixedly arranged on a rotating shaft of the motor, and the phase difference between the first eccentric wheel and the second eccentric wheel can be adjusted by rotating the first eccentric wheel and the second eccentric wheel.
In the trimming presser foot lifting mechanism, the eccentric wheel comprises a first eccentric wheel and a second eccentric wheel, the first eccentric wheel and the second eccentric wheel are of an integrated structure, and the phase difference between the first eccentric wheel and the second eccentric wheel is constant.
In the trimming presser foot lifting mechanism, the phase difference between the first eccentric wheel and the second eccentric wheel is 180 °.
In the thread trimming presser foot lifting mechanism, two planes with the same phase difference with the eccentric wheel I and the eccentric wheel II are arranged on the rotating shaft and used for installing the eccentric wheels.
In the trimming presser foot lifting mechanism, the longitudinal sections of the first eccentric wheel and the second eccentric wheel are both in a convex shape and comprise a large diameter part and a small diameter part which are coaxially arranged, and shaft holes for mounting a motor rotating shaft are eccentrically arranged on the first eccentric wheel and the second eccentric wheel.
In the above thread trimming presser foot lifting mechanism, the motor is fixedly arranged on the motor mounting plate, and the motor mounting plate is fixed on the outer surface of the machine shell.
Another object of the present invention is to provide a sewing machine, which comprises the above mentioned thread trimming and presser foot lifting mechanism.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model discloses a motor is installed on the casing, and is little to sewing machine institutional advancement, and the commonality is strong.
2. The utility model discloses can carry out the trimming action alone or lift the presser foot action, mutually noninterfere, compact structure lifts to the highest time at the presser foot, shares power through mechanical structure, and the motor is in standby state, and reducible step motor's load can be avoided step motor long-term high load work to lead to overheated and lose the step and even the phenomenon of warning.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic view of the eccentric wheel of the present invention disposed on the rotating shaft of the motor;
fig. 4 is a schematic view of the presser foot lifting link of the present invention;
FIG. 5 is a schematic view of an eccentric wheel I of the present invention;
fig. 6 is a schematic view of a presser foot connecting pin of the present invention;
fig. 7 is a schematic view of the trimming connecting pin of the present invention.
In the figure: 1. a motor; 2. trimming an eccentric section; 3. lifting the eccentric section of the presser foot; 4. trimming connecting rods; 5. lifting a presser foot connecting rod; 6. a presser foot lifting connecting rod; 7. trimming a connecting plate; 8. a crotch part; 9. a steel wire; 10. a long row of grooves; 11. a presser foot connecting pin; 12. a trimming connecting pin; 13. a limit baffle; 14. a first pin shaft; 15. a second pin shaft; 16. a third pin shaft; 17. a first eccentric wheel; 18. a shaft hole; 19. motor mounting panel.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 7:
one of the purposes of the utility model is to provide a presser foot mechanism is lifted to trimming, specifically indicates that the presser foot mechanism is lifted to trimming that is applicable to on the medium and thick material flush joint machine. It comprises a thread trimming component, a presser foot lifting component and a motor 1, wherein an eccentric wheel is arranged on a rotating shaft of the motor 1, the eccentric wheel comprises a thread trimming eccentric section 2 and a presser foot lifting eccentric section 3, the trimming connecting rod 4 and the presser foot lifting connecting rod 5 are respectively arranged on the trimming eccentric section 2 and the presser foot lifting eccentric section 3, the outer ends of the presser foot lifting connecting rod 5 and the trimming connecting rod 4 are both arranged in a suspended manner, and the free ends are respectively positioned at the two sides of the eccentric wheel, one end of the pressure foot lifting connecting rod 6 is connected with the free end of the pressure foot lifting connecting rod 5 in a sliding way, the other end is connected with the rear lever of the pressure foot lifting assembly, the middle part of the pressure foot lifting connecting rod 6 is rotatably connected with the machine shell, one end of the thread cutting connecting plate 7 is connected with the suspended end of the thread cutting connecting rod 4 in a sliding way, the other end is rotatably connected on the machine shell, a branch part 8 is further arranged on the trimming connecting plate 7, and the branch part 8 is connected with a trimming cam crank of the trimming component through a steel wire 9. Motor 1 can be step motor or servo motor, the preferred step motor of this embodiment.
The thread cutting assembly comprises a lower shaft, a fixed cutter and a movable cutter, a thread cutting cam is fixed on the lower shaft, the fixed cutter is fixed on a bottom plate, a thread cutting shaft with an axis parallel to the lower shaft is arranged on one side of the lower shaft, a thread cutting cam crank is arranged at the rear end of the thread cutting shaft, balls are arranged on the thread cutting cam crank, the front end of the thread cutting shaft is connected with the movable cutter through a thread cutting crank and a thread cutting connecting rod, and the steel wire 9 is connected to the thread cutting cam crank. The motor 1 rotates to pull the steel wire 9 and further pull the thread trimming cam crank and the balls to move, so that the balls roll on the thread trimming cam to drive the movable cutter to rotate to perform thread trimming.
The pressure foot lifting assembly comprises a pull rod, one end of the pull rod is connected with the rear lever, the other end of the pull rod is connected with the front lever, and the front lever and the rear lever are rotatably connected to the machine shell. The lower end of the front lever is hinged with the upper end of the presser foot lifting plate, the lower end of the presser foot lifting plate is attached to the pressure rod guide frame, the pressure rod guide frame is fixed on the pressure rod, and the lower end of the pressure rod is provided with the presser foot.
The working principle of the utility model is as follows:
when the sewing machine works normally, the motor 1 is in an initial state and does not rotate, and at the moment, the presser foot lifting component and the thread cutting component do not act.
When a thread is required to be cut, the rotating shaft of the motor 1 rotates clockwise to drive the thread cutting connecting rod 4 and the presser foot lifting connecting rod 5 on the rotating shaft to rotate clockwise, and further drive the thread cutting connecting plate 7 to rotate, so that the steel wire 9 pulls the thread cutting cam to rotate to drive the movable cutter to rotate to realize a thread cutting action, and after the thread cutting action is finished, the rotating shaft of the motor 1 rotates to an initial position to finish a thread cutting procedure; in the process, one end of the presser foot lifting connecting rod 6 slides at the suspension end of the presser foot lifting connecting rod 5 to execute the idle stroke, and the presser foot lifting assembly does not act.
When the presser foot needs to be lifted, the rotating shaft of the motor 1 rotates anticlockwise to drive the trimming connecting rod 4 on the rotating shaft and the presser foot lifting connecting rod 5 to rotate anticlockwise, so that the presser foot lifting connecting rod 6 is driven to rotate around the rotating point, the rear lever is driven to rotate around the rotating point, the pull rod drives the front lever to rotate, the presser foot lifting plate and the pressure lever guide frame are driven to lift upwards to drive the pressure lever, the presser foot is lifted upwards to realize the action of lifting the presser foot, at the moment, one end of the trimming connecting plate 7 slides at the free end of the trimming connecting rod 4 to execute the idle stroke, and the trimming assembly does not act.
The action of the utility model can also be as follows:
after sewing work is finished, thread cutting is firstly carried out, the rotating shaft of the motor 1 rotates clockwise to drive the thread cutting connecting rod 4 and the presser foot lifting connecting rod 5 on the rotating shaft to rotate clockwise, and then the thread cutting connecting plate 7 is driven to rotate, so that the steel wire 9 pulls the thread cutting cam to rotate to drive the movable knife to rotate to realize thread cutting, and in the process, one end of the presser foot lifting connecting rod 6 slides at the free end of the presser foot lifting connecting rod 5 to execute idle stroke, and the presser foot lifting component does not move.
After the thread trimming action is finished, the rotating shaft of the motor 1 continues to rotate clockwise, at the moment, one end of the thread trimming connecting plate 7 slides at the free end of the thread trimming connecting rod 4 to execute a free stroke, the presser foot lifting connecting rod 5 rotates to drive the presser foot lifting connecting rod 6 to rotate around a rotating point, the rear lever is driven to rotate around the rotating point, the pull rod drives the front lever to rotate, the presser foot lifting plate and the presser bar guide frame are driven to lift upwards, and then the presser bar and the presser foot are driven to lift upwards to realize the action of lifting the presser foot.
Further, the specific structure that one end of the presser foot lifting connecting rod 6 is slidably connected with the suspended end of the presser foot lifting connecting rod 5 is as follows: the suspended end of the pressure foot lifting connecting rod 5 is provided with a long row groove 10, one end of the pressure foot lifting connecting rod 6 is connected with one end of a pressure foot lifting connecting pin 11, and the other end of the pressure foot lifting connecting rod is arranged in the long row groove 10 in a sliding mode.
The concrete structure that one end of trimming connecting plate 7 leads to and trimming connecting rod 4's free end sliding connection is as follows: the suspension end of the trimming connecting rod 4 is provided with a long row groove 10, one end of the trimming connecting plate 7 is connected with one end of a trimming connecting pin 12, and the other end is arranged in the long row groove 10 in a sliding manner.
When the thread cutting action is executed, the thread cutting connecting pin 12 slides to the outer end of the long row of grooves 10, at the moment, the thread cutting connecting plate 7 is driven to rotate by the rotation of the thread cutting connecting rod 4, and the pressure foot lifting connecting pin 11 always slides in the part between the two ends of the long row of grooves 10 and is in an idle stroke state. On the contrary, when the presser foot lifting action is performed, the presser foot lifting connecting pin 11 slides to the outer end of the long row groove 10, and the trimming connecting pin 12 always slides in the portion between the two ends of the long row groove 10, and is in an idle stroke state.
Lift presser foot connecting pin 11 and include limit baffle 13, be provided with round pin axle one 14 and round pin axle two 15 respectively at limit baffle 13's both ends, round pin axle one 14 sets up in the long row's of lifting presser foot connecting rod 5 groove 10, and a pot head that lifts presser foot connecting rod 6 is established outside round pin axle two 15 and is fixed through nut locking. The trimming connecting pin 12 comprises a limiting baffle 13, and a pin shaft three 16 and a pin shaft four which are arranged on two end faces of the limiting baffle 13, wherein the pin shaft three 16 is arranged in the long row groove 10 of the trimming connecting rod 4, the pin shaft four is a step shaft, and one end of the trimming connecting plate 7 is sleeved outside the end with the smaller diameter and is locked and fixed through a nut.
In addition to the above structure, the sliding connection between one end of the presser foot lifting connecting rod 6 and the suspended end of the presser foot lifting connecting rod 5 and the sliding connection between one end of the thread cutting connecting plate 7 and the suspended end of the thread cutting connecting rod 4 can also be adopted: the suspension ends of the trimming connecting rod 4 and the presser foot lifting connecting rod 5 are provided with slide rails, two ends of each slide rail are provided with limit blocks, one ends of the trimming connecting plate 7 and the presser foot lifting connecting rod 6 are provided with slide blocks, and the slide blocks slide on the slide rails between the two limit blocks.
The principle of the present embodiment is the same as that of the long row tank 10 described above.
Furthermore, the eccentric wheel comprises a first eccentric wheel 17 and a second eccentric wheel, the first eccentric wheel 17 and the second eccentric wheel are of a split structure and are fixedly arranged on a rotating shaft of the motor 1 in sequence, and the phase difference between the first eccentric wheel 17 and the second eccentric wheel can be adjusted by rotating the first eccentric wheel 17 and the second eccentric wheel. The structure can adjust the phase difference between the two according to the actual condition, is convenient to adjust, and has low requirements on the precision of processing and assembling.
In addition, the eccentric wheel can also adopt an integrated structure, and in this case, the phase difference between the eccentric wheel I17 and the eccentric wheel II 18 is constant. For convenience of installation, two planes with the same phase difference with the first eccentric wheel 17 and the second eccentric wheel 18 are required to be arranged on the rotating shaft for installing the eccentric wheels.
The longitudinal sections of the first eccentric wheel 17 and the second eccentric wheel are convex, the first eccentric wheel 17 and the second eccentric wheel 17 comprise a large diameter part and a small diameter part which are coaxially arranged, and shaft holes 18 for mounting a rotating shaft of the motor 1 are eccentrically arranged on the first eccentric wheel 17 and the second eccentric wheel. A plurality of screws are radially arranged on the large-diameter part to fixedly connect the eccentric wheel I17 and the eccentric wheel II with a rotating shaft of the motor 1. The pressure foot lifting connecting rod 5 and the thread trimming connecting rod 4 are both arranged on the small-diameter part. The eccentricity between the shaft hole 18 and the large-diameter portion and the small-diameter portion is set according to actual conditions.
The phase difference of the eccentric wheel I17 and the eccentric wheel II is 180 degrees, and when the presser foot connecting rod 5 and the trimming connecting rod 4 are lifted on the same straight line, the effect is best.
In order to facilitate installation and fixation, the motor 1 is fixedly arranged on a motor mounting plate 19, and the motor mounting plate 19 is fixed on the outer surface of the machine shell. The utility model discloses install in the below of the back luffer board of casing, opened a hole at this position, can cover this hole through motor mounting panel 19, reach the effect of leak protection oil.
Another object of the present invention is to provide a sewing machine, which comprises the above mentioned thread trimming and presser foot lifting mechanism.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a trimming lifts presser foot mechanism, includes the trimming subassembly, lifts the presser foot subassembly, its characterized in that: the device is characterized by further comprising a motor (1), an eccentric wheel is arranged on a rotating shaft of the motor (1), the eccentric wheel comprises a presser foot lifting eccentric section (2) and a trimming eccentric section (3), a presser foot lifting connecting rod (5) is arranged on the presser foot lifting eccentric section (2), a trimming connecting rod (4) is arranged on the trimming eccentric section (3), the presser foot lifting connecting rod (5) and the outer end of the trimming connecting rod (4) are both arranged in a suspended mode, the suspended ends are respectively located on two sides of the eccentric wheel, one end of a presser foot lifting connecting rod (6) is connected with the suspended end of the presser foot lifting connecting rod (5) in a sliding mode, the other end of the presser foot lifting connecting rod is connected with a rear lever of a presser foot lifting assembly, the middle of the presser foot lifting connecting rod (6) is connected with the machine shell in a rotating mode, one end of a trimming connecting plate (7) is connected with the suspended end of the trimming connecting rod (4) in a sliding mode, the branch part (8) is connected with a thread trimming cam crank of the thread trimming component through a steel wire (9).
2. The thread trimming presser foot lifting mechanism of claim 1, wherein: the suspended end of the presser foot lifting connecting rod (5) is provided with a long row groove (10), one end of the presser foot lifting connecting rod (6) is connected with one end of a presser foot lifting connecting pin (11), and the other end is arranged in the long row groove (10) in a sliding mode.
3. A thread trimming and presser foot lifting mechanism according to claim 1 or 2, wherein: the suspension end of the trimming connecting rod (4) is provided with a long row groove (10), one end of the trimming connecting plate (7) is connected with one end of the trimming connecting pin (12), and the other end of the trimming connecting plate is arranged in the long row groove (10) in a sliding manner.
4. The thread trimming presser foot lifting mechanism of claim 1, wherein: the eccentric wheel comprises a first eccentric wheel (17) and a second eccentric wheel, the first eccentric wheel (17) and the second eccentric wheel are of a split structure and are fixedly arranged on a rotating shaft of the motor (1) in sequence, and the phase difference between the first eccentric wheel (17) and the second eccentric wheel can be adjusted by rotating the first eccentric wheel (17) and the second eccentric wheel.
5. The thread trimming presser foot lifting mechanism of claim 1, wherein: the eccentric wheel comprises a first eccentric wheel (17) and a second eccentric wheel, the first eccentric wheel (17) and the second eccentric wheel are of an integrated structure, and the phase difference between the first eccentric wheel (17) and the second eccentric wheel is constant.
6. A thread trimming and presser foot lifting mechanism according to claim 4 or 5, wherein: the phase difference between the eccentric wheel I (17) and the eccentric wheel II is 180 degrees.
7. The thread trimming presser foot lifting mechanism of claim 5, wherein: two planes with the same phase difference with the eccentric wheel I (17) and the eccentric wheel II are arranged on the rotating shaft and used for installing the eccentric wheels.
8. A thread trimming and presser foot lifting mechanism according to claim 5 or 7, wherein: the longitudinal sections of the first eccentric wheel (17) and the second eccentric wheel are both convex, the first eccentric wheel (17) and the second eccentric wheel comprise a large-diameter part and a small-diameter part which are coaxially arranged, and shaft holes (18) for installing rotating shafts of the motors (1) are eccentrically arranged on the first eccentric wheel (17) and the second eccentric wheel.
9. The thread trimming presser foot lifting mechanism of claim 1, wherein: the motor (1) is fixedly arranged on a motor mounting plate (19), and the motor mounting plate (19) is fixed on the outer surface of the machine shell.
10. A sewing machine characterized by: comprising a thread trimming and presser foot lifting mechanism according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818961.1U CN210031104U (en) | 2019-05-31 | 2019-05-31 | Thread trimming and presser foot lifting mechanism and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920818961.1U CN210031104U (en) | 2019-05-31 | 2019-05-31 | Thread trimming and presser foot lifting mechanism and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210031104U true CN210031104U (en) | 2020-02-07 |
Family
ID=69346121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920818961.1U Expired - Fee Related CN210031104U (en) | 2019-05-31 | 2019-05-31 | Thread trimming and presser foot lifting mechanism and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210031104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042579A (en) * | 2019-05-31 | 2019-07-23 | 阮健明 | A kind of thread-trimming lifter-presser foot mechanism and sewing machine |
| CN112430912A (en) * | 2020-11-13 | 2021-03-02 | 拓卡奔马机电科技有限公司 | Button sewing machine and lifting, pressing and wire shearing mechanism thereof |
-
2019
- 2019-05-31 CN CN201920818961.1U patent/CN210031104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042579A (en) * | 2019-05-31 | 2019-07-23 | 阮健明 | A kind of thread-trimming lifter-presser foot mechanism and sewing machine |
| CN112430912A (en) * | 2020-11-13 | 2021-03-02 | 拓卡奔马机电科技有限公司 | Button sewing machine and lifting, pressing and wire shearing mechanism thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |