CN211420494U - Presser foot lifting device of sewing machine - Google Patents
Presser foot lifting device of sewing machine Download PDFInfo
- Publication number
- CN211420494U CN211420494U CN201922422797.5U CN201922422797U CN211420494U CN 211420494 U CN211420494 U CN 211420494U CN 201922422797 U CN201922422797 U CN 201922422797U CN 211420494 U CN211420494 U CN 211420494U
- Authority
- CN
- China
- Prior art keywords
- presser foot
- foot lifting
- lever
- roller
- sewing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a presser foot lifting device of a sewing machine, which comprises a driving device, a swing crank, a roller, a rear presser foot lifting lever, a presser foot lifting pull rod and a front presser foot lifting lever component; the power output end of the driving device is connected to one end of a swing crank, and the other end of the swing crank is provided with a roller; the first end of the presser foot lifting rear lever is contacted with the roller, and the second end of the presser foot lifting rear lever is rotatably arranged on the machine shell through a rear lever shaft position screw; the first end of the presser foot lifting pull rod is connected to the second end of the presser foot lifting rear lever through a presser foot pull rod screw, the second end of the presser foot lifting pull rod is connected to one end of the presser foot lifting front lever component, and the other end of the presser foot lifting front lever component is connected to the presser foot. The utility model discloses a drive arrangement lifts the presser foot, and is sensitive high-efficient, accurate reliable.
Description
Technical Field
The utility model relates to a sewing machine lift presser foot device.
Background
The sewing machine generally uses the electromagnet to drive the function of lifting the presser foot, only can fix a value and a height, cannot realize the setting of the height of the presser foot stroke, and has the disadvantages of complex structure, inconvenient adjustment, poor sensitivity and low transmission efficiency. In addition, the conventional electromagnet can generate collision noise, is easy to generate heat after being electrified for a long time, and has high failure rate.
Disclosure of Invention
The utility model aims at solving the technical problems of inconvenient adjustment, poor sensitivity and low efficiency of the presser foot lifting driving device of the prior sewing machine.
In order to achieve the purpose of the utility model, the utility model provides a presser foot lifting device of a sewing machine, which comprises a driving device, a swing crank, a roller, a rear lever for lifting the presser foot, a presser foot lifting pull rod and a front lever component for lifting the presser foot; the power output end of the driving device is connected to one end of the swinging crank, and the other end of the swinging crank is provided with the roller; the first end of the presser foot lifting rear lever is in contact with the roller, and the second end of the presser foot lifting rear lever is rotatably arranged on the machine shell through a rear lever shaft position screw; the first end of the pressure foot lifting pull rod is connected to the second end of the pressure foot lifting rear lever through a pressure foot pull rod screw, the second end of the pressure foot lifting pull rod is connected to one end of the pressure foot lifting front lever component, and the other end of the pressure foot lifting front lever component is connected to the pressure foot; the driving device is suitable for driving the swing crank to rotate, the roller is suitable for freely rotating, the pressure foot lifting rear lever is suitable for rotating under the driving of the swing crank, and then the pressure foot lifting pull rod is driven to move back and forth, so that the pressure foot lifting front lever component is lifted, and finally the pressure foot is driven to move up and down to a preset height position.
Furthermore, a through hole is formed between the first end and the second end of the pressure foot lifting and pressing rod rear lever, a top rod penetrates through the through hole and then is fixed on the machine shell, and the diameter of the through hole is larger than that of the top rod.
Furthermore, drive arrangement is driving motor, driving motor fixes on the back luffer board, back luffer board pad with the cooperation of back luffer board, installs the oil blanket on the fixed cover, the oil blanket cover is in driving motor's output shaft and pushes down back luffer board pad, and back luffer board pad is fixed on the back luffer board.
Further, the pressure foot lifting pull rod is fixed on the pressure foot lifting front lever component through a split washer.
Further, the driving device is any one of a stepping motor, a rotary electromagnet, and a rotary cylinder.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a drive arrangement drive the swing crank rotates, the roller is suitable for the free rotation, lift the presser foot back lever and rotate under swing articulate drive, and then drive lift presser foot pull rod back and forth movement, thereby go up and down lift the lever part before the presser foot, finally drive the presser foot and reciprocate and preset high position, set for the presser foot stroke height through automatically controlled procedure rotating electrical machines angle, it is convenient to adjust, sensitive high-efficient, accurate reliable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is a schematic structural view of a swing crank according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a rear lever for lifting the presser foot according to an embodiment of the present invention.
In the figure, a drive device 1; a rear window panel 2; a rear window panel cushion 3; an oil seal 4; a fixed sleeve 5; a swing crank 6; rear lever shaft position screw 7; presser foot draw bar screw 8; a roller 9; lifting the presser foot roller axis position screw 10; lifting the presser foot rear lever 11; a top rod 12; lifting the presser foot pull rod 13; a split washer 14; a presser foot front lever member 15; and a presser foot 16.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, an embodiment of the presser foot lifting device of the sewing machine of the present invention comprises a driving device 1, a swing crank 6, a roller 9, a rear presser foot lifting lever 11, a presser foot lifting pull rod 13 and a front presser foot lifting lever component 15; the power output end of the driving device 1 is connected to one end of the swinging crank 6, and the other end of the swinging crank 6 is provided with the roller 9; the first end of the presser foot lifting rear lever 11 is in contact with the roller 9, and the second end of the presser foot lifting rear lever 11 is rotatably arranged on the machine shell through a rear lever shaft position screw 7; a first end of the presser foot lifting pull rod 13 is connected to a second end of the presser foot lifting rear lever 11 through a presser foot pull rod screw 8, a second end of the presser foot lifting pull rod 13 is connected to one end of the presser foot lifting front lever component 15, and the other end of the presser foot lifting front lever component 15 is connected to the presser foot 16; the driving device 1 is suitable for driving the swing crank 6 to rotate, the roller 9 is suitable for freely rotating, the presser foot lifting rear lever 11 is suitable for being driven by the swing crank 6 to rotate, and then the presser foot lifting pull rod 13 is driven to move back and forth, so that the presser foot lifting front lever component 15 is lifted, and finally the presser foot 16 is driven to move up and down to a preset height position.
In an embodiment of the present invention, a through hole is disposed between the first end and the second end of the presser foot lifting rear lever 11, a top rod 12 passes through the through hole and then is fixed on the housing, and the diameter of the through hole is larger than that of the top rod 12, so that the presser foot 16 can move up and down by the knee leaning device abutting against the top rod 12.
The utility model discloses an in one embodiment, drive arrangement 1 is driving motor, driving motor fixes on the back luffer board 2, the back luffer board pad 3 with back luffer board 2 cooperates, installs oil blanket 4 on fixed cover 5 in order to prevent that oil leakage leads to the motor life to shorten, 4 covers of oil blanket are on driving motor's output shaft and are pushed down back luffer board pad 3, and back luffer board pad 3 is fixed on back luffer board 2. Specifically, the drive motor may rotate the stepping motor.
In an embodiment of the present invention, the pressure foot lifting pull rod 13 is fixed on the pressure foot lifting front lever component 15 through the split retainer ring 14, and the split retainer ring 14 occupies a small installation space, is easy to install, and is low in cost.
In an embodiment of the present invention, the driving device 1 is a rotary electromagnet or a rotary cylinder.
When the device works, the driving device 1 is connected to the controller, the motion track of the driving device 1 is controlled through software, and then the position of the presser foot can be finely adjusted.
The utility model discloses the control software who involves in all adopts prior art.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The presser foot lifting device of the sewing machine is characterized by comprising a driving device (1), a swing crank (6), a roller (9), a rear presser foot lifting lever (11), a presser foot lifting pull rod (13) and a front presser foot lifting lever component (15); the power output end of the driving device (1) is connected to one end of the swinging crank (6), and the other end of the swinging crank (6) is provided with the roller (9); the first end of the presser foot lifting rear lever (11) is in contact with the roller (9), and the second end of the presser foot lifting rear lever (11) is rotatably arranged on the machine shell through a rear lever shaft position screw (7); the first end of the presser foot lifting and pulling rod (13) is connected to the second end of the presser foot lifting and pulling rear lever (11) through a presser foot pulling rod screw (8), the second end of the presser foot lifting and pulling rod (13) is connected to one end of the presser foot lifting and pulling front lever component (15), and the other end of the presser foot lifting and pulling front lever component (15) is connected to the presser foot (16); the driving device (1) is suitable for driving the swing crank (6) to rotate, the roller (9) is suitable for freely rotating, the pressure foot lifting rear lever (11) is suitable for rotating under the driving of the swing crank (6) so as to drive the pressure foot lifting pull rod (13) to move back and forth, and therefore the pressure foot lifting front lever component (15) is lifted, and finally the pressure foot (16) is driven to move up and down to a preset height position.
2. The presser foot lifting device of sewing machine according to claim 1, wherein a through hole is provided between the first end and the second end of the presser foot lifting rear lever (11), a push rod (12) is fixed on the machine housing after passing through the through hole, and the diameter of the through hole is larger than that of the push rod (12).
3. The presser foot lifting device of sewing machine according to claim 2, wherein said driving device (1) is a driving motor fixed on the rear window panel (2), the rear window panel pad (3) is fitted with said rear window panel (2), an oil seal (4) is installed on the fixing sleeve (5), said oil seal (4) is fitted on the output shaft of the driving motor and presses said rear window panel pad (3), and the rear window panel pad (3) is fixed on the rear window panel (2).
4. The presser foot lifting device of sewing machine according to claim 3, wherein said presser foot lifting pull rod (13) is fixed to said presser foot front lever member (15) by means of a circlip (14).
5. The presser foot lifting device of sewing machine according to claim 1, wherein said driving means (1) is any one of a stepping motor, a rotary electromagnet and a rotary cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422797.5U CN211420494U (en) | 2019-12-30 | 2019-12-30 | Presser foot lifting device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422797.5U CN211420494U (en) | 2019-12-30 | 2019-12-30 | Presser foot lifting device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211420494U true CN211420494U (en) | 2020-09-04 |
Family
ID=72288950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422797.5U Active CN211420494U (en) | 2019-12-30 | 2019-12-30 | Presser foot lifting device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211420494U (en) |
-
2019
- 2019-12-30 CN CN201922422797.5U patent/CN211420494U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209722475U (en) | A kind of automatic needle-foot-lifting thread releasing mechanism and sewing machine | |
| CN109267246A (en) | A kind of sewing machine feed dog control method, system and sewing machine | |
| CN112048838B (en) | Sewing machine | |
| CN109825965B (en) | Thread trimming and presser foot lifting mechanism with presser foot pressure adjusting function and sewing machine | |
| CN110219101A (en) | A kind of sewing machine and presser foot lifter thread releasing mechanism | |
| CN104963105A (en) | Sewing machine based on automatic template split synchronizing wheel apparatus | |
| CN211420494U (en) | Presser foot lifting device of sewing machine | |
| CN110904576A (en) | Presser foot lifting device of sewing machine | |
| CN211339931U (en) | Thread trimming and presser foot lifting mechanism of sewing machine | |
| CN203420092U (en) | Automatic foot lifting and pressing mechanism of sewing machine | |
| CN212741752U (en) | Middle presser foot structure of sewing machine | |
| CN106222893B (en) | A pinch roller subassembly and sewing machine for sewing machine | |
| CN210287735U (en) | Middle presser foot mechanism of sewing machine | |
| CN114481462B (en) | Rear tug device of sewing machine | |
| CN216663440U (en) | Automatic lift presser foot structure | |
| CN111593499A (en) | Middle presser foot structure of sewing machine | |
| CN205711289U (en) | A kind of single pedal overedger | |
| CN216514512U (en) | Sewing machine lifts presser foot, accent needle apart from mechanism and sewing machine | |
| CN219752626U (en) | Presser foot lifting mechanism of sewing machine and sewing machine | |
| CN214655623U (en) | Sewing machine is down in same direction as seam stitch length and is adjusted and lift presser foot device | |
| CN113005648B (en) | Sewing machine | |
| CN216237605U (en) | Presser foot alternating quantity adjusting mechanism and sewing machine | |
| CN215925270U (en) | Mechanism for lifting presser foot and trimming by motor double-cam drive and sewing machine | |
| WO2021052081A1 (en) | Automatic rear dragging wheel lifting structure on sewing machine | |
| CN214529592U (en) | Presser foot pressure control structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |