CN219032566U - Thread cutting and presser foot lifting driving mechanism of sewing machine - Google Patents
Thread cutting and presser foot lifting driving mechanism of sewing machine Download PDFInfo
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- CN219032566U CN219032566U CN202223236589.4U CN202223236589U CN219032566U CN 219032566 U CN219032566 U CN 219032566U CN 202223236589 U CN202223236589 U CN 202223236589U CN 219032566 U CN219032566 U CN 219032566U
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- presser foot
- driving wheel
- foot lifting
- driving
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Abstract
The utility model discloses a thread cutting and presser foot lifting driving mechanism of a sewing machine, which comprises a motor fixed on a sewing machine shell, a driving wheel sleeved on an output shaft of the motor, a first transmission mechanism linked with a thread cutting assembly, and a second transmission mechanism linked with a presser foot lifting assembly, wherein the driving wheel comprises a first driving wheel and a second driving wheel, the first driving wheel and the second driving wheel are arranged in a split mode, the first driving wheel is provided with a first driving part for driving the first transmission mechanism, the second driving wheel is provided with a second driving part for driving the second transmission mechanism, and the first driving part and the second driving part are arranged in the same direction or opposite directions. The split driving wheels are switched in different installation modes, so that the split driving wheel is suitable for different application scenes and has better practicability.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a thread cutting and presser foot lifting driving mechanism of a sewing machine.
Background
At present, a thread cutting assembly and a presser foot lifting assembly are driven by a stepping motor arranged on a machine shell, a driving wheel is arranged on an output shaft sleeve of the motor, and the thread cutting assembly and the presser foot lifting assembly are respectively driven by forward and backward rotation of the stepping motor.
Disclosure of Invention
In view of the above, the present utility model provides a thread cutting and presser foot lifting driving mechanism for a sewing machine.
The utility model provides a sewing machine cut line and lift presser foot actuating mechanism, includes the motor that is fixed in the sewing machine casing, overlaps the drive wheel of locating on the motor output shaft, with the first drive mechanism of cutting line subassembly linkage, with the second drive mechanism of lifting presser foot subassembly linkage, the drive wheel includes first drive wheel and second drive wheel, first drive wheel and second drive wheel components of a whole that can function independently set up, first drive wheel is equipped with the first drive division of drive first drive mechanism, the second drive wheel is equipped with the second drive division of drive second drive division, first drive division and second drive division syntropy or opposite direction setting.
The first driving wheel and the second driving wheel are detachably connected with the motor output shaft, at least two screw mounting holes are formed in the first driving wheel, and at least two screw mounting holes are formed in the second driving wheel.
The sewing machine is characterized in that a motor output shaft mounting hole is formed in the sewing machine shell, a bearing is arranged in the mounting hole, and the tail end of the motor output shaft is connected to the bearing.
The first transmission mechanism is provided with a first lug which is in linkage fit with the first driving wheel, the second transmission mechanism is provided with a second lug which is in linkage fit with the second driving wheel, the first lug and the second lug are arranged on the side of the motor output shaft, and the first lug and the second lug are positioned on the same side.
The first protruding block is round, and the second protruding block is round.
The first transmission mechanism comprises a wire cutting crank, a first connecting rod and a second connecting rod which are connected in sequence, the first lug is arranged at the end part of the wire cutting crank, and the lower end of the second connecting rod is connected with the wire cutting assembly.
The wire cutting assembly comprises a linkage rod and a cutter arm which are sequentially connected, the linkage rod is connected with the first transmission mechanism, and a cutter is arranged at the end part of the cutter arm.
The second transmission mechanism comprises a presser foot lifting crank and a third connecting rod which are connected in sequence, the second lug is arranged at the end part of the presser foot lifting crank, and the third connecting rod is connected with the presser foot lifting assembly.
The presser foot lifting assembly comprises a lever part and a presser foot lifting part, one end of the lever part is connected with a second transmission mechanism, the other end of the lever part is provided with a first clamping hook part, the presser foot lifting part is provided with a second clamping hook part, and the first clamping hook part is in linkage fit with the second clamping hook part.
The utility model has the beneficial effects that: according to the utility model, the two split driving wheels are sleeved on the motor output shaft, when the corresponding driving parts are arranged in the same direction, the motor rotates around one direction, the thread cutting and the presser foot lifting are simultaneously carried out, so that the bottom thread can be kept longer, and when the corresponding driving parts are arranged in the opposite direction, the motor rotates forwards and backwards, firstly cuts the thread and then lifts the presser foot, so that the bottom thread can be kept shorter, and the two modes can be switched through different mounting modes of the split driving wheels, so that the motor is suitable for different application scenes and has better practicability.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of the first driving portion and the second driving portion disposed in the same direction according to an embodiment of the present utility model.
Fig. 4 is a schematic structural diagram of the first driving portion and the second driving portion disposed opposite to each other in an embodiment of the present utility model.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
As shown in fig. 1-2, a thread cutting and presser foot lifting driving mechanism of a sewing machine comprises a motor 2 fixed on a sewing machine shell 1, a driving wheel sleeved on an output shaft of the motor 2, a first transmission mechanism linked with a thread cutting assembly, and a second transmission mechanism linked with a presser foot lifting assembly, wherein the driving wheel comprises a first driving wheel 3 and a second driving wheel 4, the first driving wheel 3 and the second driving wheel 4 are separately arranged, the first driving wheel 3 is provided with a first driving part 31 for driving the first transmission mechanism, the second driving wheel 4 is provided with a second driving part 41 for driving the second transmission mechanism, the first driving part 31 and the second driving part 41 are arranged in the same direction or opposite direction, as shown in fig. 3, when the first driving part 31 and the second driving part 41 are arranged in the same direction, the motor rotates around only one direction, and the thread cutting and the presser foot lifting are simultaneously carried out, so that a base thread can be kept longer, as shown in fig. 4, when the first driving part 31 and the second driving part 41 are arranged opposite, the motor is reversely rotated, the first cutting thread is carried out, then the base thread is carried out, and the base thread lifting can be better, the base thread can be kept in a different practical mode by switching mode by the two driving wheels, and the two modes can be better applied to different in the installation modes.
In this embodiment, the first driving wheel 3 and the second driving wheel 4 are detachably connected with the motor output shaft, two screw mounting ports 331 are formed in the first driving wheel 3, two screw mounting ports are formed in the second driving wheel 4, the driving wheel and the motor output shaft are fixed through mounting screws in the screw mounting ports 331, and when the mounting direction of the driving wheel needs to be changed, only the screws need to be detached, so that the disassembly is convenient. The sewing machine is characterized in that a motor output shaft mounting hole 5 is formed in the sewing machine shell 1, a bearing 6 is arranged in the mounting hole 5, the tail end of the motor output shaft is connected to the bearing 6, and the split driving wheel can be detached and reinstalled according to the use condition, so that different modes can be conveniently switched.
In this embodiment, the first transmission mechanism is provided with a first bump 8 that is in linkage fit with the first driving wheel 3, the second transmission mechanism is provided with a second bump 9 that is in linkage fit with the second driving wheel 4, the first bump 8 and the second bump 9 are arranged on the side of the motor output shaft, and the first bump 8 and the second bump 9 are located on the same side, preferably, the first bump 8 is circular, and the second bump 9 is circular, so that the driving is smoother.
In this embodiment, the first transmission mechanism includes a wire cutting crank 10, a first connecting rod 11, and a second connecting rod 12 that are sequentially connected, the first bump 8 is disposed at an end of the wire cutting crank 10, and a lower end of the second connecting rod 12 is connected with a wire cutting assembly. The wire cutting assembly comprises a linkage rod 13 and a cutter arm 14 which are sequentially connected, the linkage rod 13 is connected with a first transmission mechanism, a cutter 15 is arranged at the end part of the cutter arm 14, and a motor rotates to enable the first driving wheel 3 to push the first lug 8 so that the cutter 15 completes a wire cutting action.
In this embodiment, the second transmission mechanism includes a presser foot lifting crank 16 and a third connecting rod 17 that are sequentially connected, the second bump 9 is disposed at an end of the presser foot lifting crank 16, and an upper end of the third connecting rod 17 is connected with a presser foot lifting assembly. The presser foot lifting assembly comprises a lever member 7 and a presser foot lifting assembly 20, one end of the lever member 7 is connected with a second transmission mechanism, the other end of the lever member 7 is provided with a first clamping hook portion 18, the presser foot lifting assembly 20 is provided with a second clamping hook portion 19, the first clamping hook portion 18 is in linkage fit with the second clamping hook portion 19, the second driving wheel 4 is rotated by a motor to push the second protruding block 9 so that the lever member 7 tilts, the first clamping hook portion 18 is lifted, and when the first clamping hook portion 18 is lifted, the second clamping hook portion 19 is lifted so that the presser foot lifting assembly 20 is lifted.
The examples should not be construed as limiting the utility model, and any non-inventive modifications based on the spirit of the utility model should be regarded as being within the scope of the utility model.
Claims (9)
1. The utility model provides a sewing machine cut line and lift presser foot actuating mechanism, includes motor (2) that are fixed in sewing machine casing (1), the epaxial drive wheel of motor output, first drive mechanism with cut line subassembly linkage, with lift presser foot subassembly linkage's second drive mechanism, its characterized in that: the driving wheel comprises a first driving wheel (3) and a second driving wheel (4), the first driving wheel (3) and the second driving wheel (4) are arranged in a split mode, the first driving wheel (3) is provided with a first driving part (31) for driving a first transmission mechanism, the second driving wheel (4) is provided with a second driving part (41) for driving a second transmission mechanism, and the first driving part (31) and the second driving part (41) are arranged in the same direction or opposite direction.
2. The thread cutting and presser foot lifting drive mechanism of a sewing machine of claim 1, wherein: the first driving wheel (3) and the second driving wheel (4) are detachably connected with the motor output shaft, at least two screw mounting holes (331) are formed in the first driving wheel (3), and at least two screw mounting holes are formed in the second driving wheel (4).
3. The thread cutting and presser foot lifting drive mechanism of a sewing machine of claim 2, wherein: the sewing machine is characterized in that a motor output shaft mounting hole (5) is formed in the sewing machine shell (1), a bearing (6) is arranged in the mounting hole (5), and the tail end of the motor output shaft is connected to the bearing (6).
4. The thread cutting and presser foot lifting drive mechanism of a sewing machine of claim 1, wherein: the first transmission mechanism is provided with a first lug (8) in linkage fit with the first driving wheel (3), the second transmission mechanism is provided with a second lug (9) in linkage fit with the second driving wheel (4), the first lug (8) and the second lug (9) are arranged on the side of the motor output shaft, and the first lug (8) and the second lug (9) are positioned on the same side.
5. The thread cutting and presser foot lifting drive mechanism for a sewing machine of claim 4, wherein: the first protruding block (8) is round, and the second protruding block (9) is round.
6. The thread cutting and presser foot lifting drive mechanism for a sewing machine of claim 4, wherein: the first transmission mechanism comprises a wire cutting crank (10), a first connecting rod (11) and a second connecting rod (12) which are connected in sequence, the first lug (8) is arranged at the end part of the wire cutting crank (10), and the lower end of the second connecting rod (12) is connected with the wire cutting assembly.
7. A thread cutting and presser foot lifting drive mechanism for a sewing machine as recited in claim 1 or 6 wherein: the wire cutting assembly comprises a linkage rod (13) and a cutter arm (14) which are sequentially connected, the linkage rod (13) is connected with a first transmission mechanism, and a cutter (15) is arranged at the end part of the cutter arm (14).
8. The thread cutting and presser foot lifting drive mechanism for a sewing machine of claim 4, wherein: the second transmission mechanism comprises a presser foot lifting crank (16) and a third connecting rod (17) which are connected in sequence, the second lug (9) is arranged at the end part of the presser foot lifting crank (16), and the third connecting rod (17) is connected with the presser foot lifting assembly.
9. A thread cutting and presser foot lifting drive mechanism for a sewing machine as claimed in claim 1 or 8 wherein: the presser foot lifting assembly comprises a lever (7) and a presser foot lifting assembly (20), one end of the lever (7) is connected with a second transmission mechanism, the other end of the lever is provided with a first clamping hook portion (18), the presser foot lifting assembly (20) is provided with a second clamping hook portion (19), and the first clamping hook portion (18) is in linkage fit with the second clamping hook portion (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223236589.4U CN219032566U (en) | 2022-12-05 | 2022-12-05 | Thread cutting and presser foot lifting driving mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223236589.4U CN219032566U (en) | 2022-12-05 | 2022-12-05 | Thread cutting and presser foot lifting driving mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219032566U true CN219032566U (en) | 2023-05-16 |
Family
ID=86279158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223236589.4U Active CN219032566U (en) | 2022-12-05 | 2022-12-05 | Thread cutting and presser foot lifting driving mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219032566U (en) |
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2022
- 2022-12-05 CN CN202223236589.4U patent/CN219032566U/en active Active
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