CN215404895U - Driving mechanism of lockstitch sewing machine - Google Patents
Driving mechanism of lockstitch sewing machine Download PDFInfo
- Publication number
- CN215404895U CN215404895U CN202121665134.7U CN202121665134U CN215404895U CN 215404895 U CN215404895 U CN 215404895U CN 202121665134 U CN202121665134 U CN 202121665134U CN 215404895 U CN215404895 U CN 215404895U
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- driving
- connecting rod
- swing arm
- presser foot
- cutter
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Abstract
The utility model discloses a driving mechanism of a lockstitch sewing machine, which comprises a motor, a presser foot lifting connecting rod and a cutter connecting rod, wherein the presser foot lifting connecting rod is used for driving a presser foot to lift and the cutter connecting rod is used for driving a cutter to cut threads; the cutter connecting rod is connected with a second driving end of the second swing arm; a power output shaft of the motor is connected with a driving disc, one side surface of the driving disc is provided with a first driving groove, and a first sliding rod in the middle of the first swing arm is positioned in the first driving groove; the other side of the driving disc is provided with a second driving groove, and a second sliding rod in the middle of the second swing arm is positioned in the second driving groove. The utility model controls the lifting action of the presser foot and the cutting action of the cutter simultaneously through one driving disc, saves the cost and improves the internal structure compactness of the sewing machine.
Description
Technical Field
The utility model relates to the field of sewing machines, in particular to a driving mechanism of a flat sewing machine.
Background
The utility model discloses a patent number is 201420645691.6's utility model discloses an automatic presser foot structure of lifting of computer flush joint machine, including linear actuator, lift behind the presser foot lever, pull rod and lift the presser foot preceding lever, the both ends of pull rod respectively with lift the one end of presser foot after the lever and lift the one end of presser foot preceding lever and link to each other, lift the straight-bar that the output that the other end of presser foot preceding lever is connected with presser foot subassembly linear actuator is reciprocating motion, lift behind the presser foot lever and be L shape, lift the other end of presser foot after the lever and be equipped with the back slotted hole, the lateral wall of straight-bar is equipped with convex spliced pole, and the spliced pole supports and leans on the pore wall of back slotted hole on. When the presser foot component presses downwards, the straight rod is driven to reset through the linear driver or a reset spring is adopted to reset.
Disclosure of Invention
The utility model provides a driving mechanism of a lockstitch sewing machine aiming at the prior art, which realizes the function of simultaneously controlling the presser foot lifting and the thread cutting by one driver.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a driving mechanism of a lockstitch sewing machine comprises a motor, a presser foot lifting connecting rod and a cutter connecting rod, wherein the presser foot lifting connecting rod is used for driving a presser foot to lift and the cutter connecting rod is used for driving a cutter to cut threads; the cutter connecting rod is connected with a second driving end of the second swing arm; a power output shaft of the motor is connected with a driving disc, one side surface of the driving disc is provided with a first driving groove, and a first sliding rod in the middle of the first swing arm is positioned in the first driving groove; the other side of the driving disc is provided with a second driving groove, and a second sliding rod in the middle of the second swing arm is positioned in the second driving groove.
In order to optimize the technical scheme, the utility model also comprises the following improved technical scheme.
The motor is positioned in a base of the lockstitch sewing machine, and a first rotating end of the first swing arm is rotatably connected with the base; the first driving end of the first swing arm is connected with the presser foot lifting connecting rod through a first connecting rod, a second rotating seat, a third connecting rod, a third rotating seat and a fourth connecting rod.
The second rotating end of the second swing arm is rotatably connected with the base, and the second driving end of the second swing arm is connected with the cutter connecting rod through the first driving connecting rod.
Compared with the prior art, the driving mechanism for the flat sewing machine has the advantages that the motor can simultaneously control the lifting action of the presser foot and the cutting action of the cutter through the driving disc, the cost can be saved by adopting a driver for driving, and the internal structure compactness of the sewing machine is improved.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a right side view of an embodiment of the present invention.
Fig. 3 is a bottom view of fig. 2.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 3 are schematic structural views of the present invention.
Wherein the reference numerals are: the cutting device comprises a motor 1, a driving disc 11, a presser foot 2, a presser foot lifting connecting rod 3, a first connecting rod 31, a second rotating seat 32, a third connecting rod 33, a third rotating seat 34, a fourth connecting rod 35, a cutter connecting rod 4, a first swing arm 5, a first sliding rod 51, a first rotating end 52, a second swing arm 6, a second sliding rod 61, a second rotating end 62 and a first driving connecting rod 63.
The driving mechanism of the flat sewing machine comprises a motor 1, a presser foot lifting connecting rod 3 for driving a presser foot 2 to ascend and descend and a cutter connecting rod 4 for driving a cutter to cut threads.
The power output shaft of the motor 1 is connected with a driving disk 11, one side surface of the driving disk 11 is provided with a first driving groove, and a first sliding rod 51 in the middle of the first swing arm 5 is positioned in the first driving groove. The other side of the driving disk 11 is provided with a second driving groove, and a second sliding rod 61 in the middle of the second swing arm 6 is positioned in the second driving groove.
The motor 1 is positioned in a base of the flat sewing machine, and a first rotating end 52 of the first swing arm 5 is rotatably connected with the base. The pressure foot lifting connecting rod 3 is connected with a first driving end of the first swing arm 5, and when the motor 1 controls the driving disc 11 to rotate, the first driving groove correspondingly drives the first driving groove, so that the first swing arm 5 rotates around the first rotating end 52. The first driving end of the first swing arm 5 is connected with the presser foot lifting connecting rod 3 through a first connecting rod 31, a second rotating seat 32, a third connecting rod 33, a third rotating seat 34 and a fourth connecting rod 35, and drives the presser foot lifting connecting rod 3 to control the lifting of the presser foot 2.
The cutter connecting rod 4 is connected with a second driving end of the second swing arm 6. The second rotating end 62 of the second swing arm 6 is rotatably connected with the base, when the motor 1 controls the driving disc 11 to rotate, the second driving slot can drive the second sliding rod 61 to move, so that the second swing arm 6 rotates around the second rotating end 62, and the second driving end of the second swing arm 6 is connected with the cutter connecting rod 4 through the first driving connecting rod 63 to control the cutter cutting action.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the utility model.
Claims (3)
1. The utility model provides a flat bed sewing machine's actuating mechanism, includes motor (1), is used for lifting presser foot connecting rod (3) and cutter connecting rod (4) that are used for driving the cutter trimming that presser foot (2) go up and down, characterized by: the pressure foot lifting connecting rod (3) is connected with a first driving end of the first swing arm (5); the cutter connecting rod (4) is connected with a second driving end of the second swing arm (6); a power output shaft of the motor (1) is connected with a driving disc (11), a first driving groove is formed in one side surface of the driving disc (11), and a first sliding rod (51) in the middle of the first swing arm (5) is located in the first driving groove; and a second driving groove is formed in the other side surface of the driving disc (11), and a second sliding rod (61) in the middle of the second swing arm (6) is positioned in the second driving groove.
2. The drive mechanism of claim 1, wherein: the motor (1) is positioned in a base of the flat sewing machine, and a first rotating end (52) of the first swing arm (5) is rotatably connected with the base; the first driving end of the first swing arm (5) is connected with the pressure foot lifting connecting rod (3) through a first connecting rod (31), a second rotating seat (32), a third connecting rod (33), a third rotating seat (34) and a fourth connecting rod (35).
3. The drive mechanism of claim 2, wherein: and a second rotating end (62) of the second swing arm (6) is rotatably connected with the base, and a second driving end of the second swing arm (6) is connected with the cutter connecting rod (4) through a first driving connecting rod (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121665134.7U CN215404895U (en) | 2021-07-21 | 2021-07-21 | Driving mechanism of lockstitch sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121665134.7U CN215404895U (en) | 2021-07-21 | 2021-07-21 | Driving mechanism of lockstitch sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215404895U true CN215404895U (en) | 2022-01-04 |
Family
ID=79651330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121665134.7U Active CN215404895U (en) | 2021-07-21 | 2021-07-21 | Driving mechanism of lockstitch sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215404895U (en) |
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2021
- 2021-07-21 CN CN202121665134.7U patent/CN215404895U/en active Active
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