CN220166393U - Presser foot lifting mechanism of flat sewing machine - Google Patents
Presser foot lifting mechanism of flat sewing machine Download PDFInfo
- Publication number
- CN220166393U CN220166393U CN202321189417.8U CN202321189417U CN220166393U CN 220166393 U CN220166393 U CN 220166393U CN 202321189417 U CN202321189417 U CN 202321189417U CN 220166393 U CN220166393 U CN 220166393U
- Authority
- CN
- China
- Prior art keywords
- presser foot
- lifting
- driving frame
- sewing machine
- round hole
- 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
- 238000009958 sewing Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims abstract description 12
- 239000003921 oil Substances 0.000 claims abstract description 12
- 239000010721 machine oil Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000001788 irregular Effects 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Abstract
The utility model relates to a presser foot lifting mechanism of a flat sewing machine. The utility model simplifies the mechanical structure without reducing the use function, and uses the stepping motor to replace electromagnet drive. The technical scheme adopted by the utility model comprises a stepping motor, a lifting crank, a roller, a positioning shaft, a presser foot lifting driving frame and a presser foot lifting ejector rod; the motor shaft of the stepping motor is sleeved with a lifting crank, the other end of the lifting crank is connected with a roller, the lifting presser foot driving frame is an irregular piece, the roller is tangential to the inclined plane of the lifting presser foot driving frame, a positioning shaft is arranged in a five-round hole and a U-shaped groove round hole of the lifting presser foot driving frame in a penetrating mode, a reset torsion spring is sleeved on the positioning shaft, one end of the reset torsion spring is clamped at one side of the outer edge of the lifting presser foot driving frame, the other end of the reset torsion spring is clamped at the plane of an oil disc of the sewing machine, the inner side of the round hole of the U-shaped groove of the lifting presser foot driving frame is respectively attached to the second round hole and the third round hole of the sewing machine oil disc, the lifting presser foot driving frame is limited, and the presser foot lifting ejector rod is contacted with the spherical surface of the lifting presser foot driving frame.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a presser foot lifting mechanism of a flat sewing machine.
Background
In recent years, multi-axis equipment gradually becomes a mainstream development trend, multi-axis flat sewing machine is wide in universality, high in multi-axis control intelligent degree, simple in structure, convenient to assemble and maintain, low in cost and the like, more and more sewing production enterprises increase research and development investment, stepping motors replace electromagnets to control functions such as trimming, lifting presser feet, adjusting stitch length and the like, meanwhile, 1+N system control is realized, a plurality of stepping motors control a plurality of intelligent functions, various multi-axis products are continuously pushed out, an electromagnet is adopted to control an automatic presser foot lifting mechanism of a sewing machine and the sewing machine, the publication number is CN 218491942U, and the automatic presser foot lifting mechanism using the electromagnet as a power source has the following defects:
firstly, the electromagnet can only have two instructions of opening and closing, but the lifting amount cannot be controlled by using a control program, and for this reason, when the electromagnet is powered off, the presser foot can instantly drop to the needle plate position, so that the noise is relatively high;
secondly, the lifting state is kept for a long time, the electromagnet is in a continuous power-on state, the electromagnet is easy to lose efficacy in the action of ironing, and the presser foot falls down.
Disclosure of Invention
In view of the above, the present utility model provides a structure for controlling the presser foot lifting by a stepping motor, which simplifies the mechanical structure without reducing the use function, and uses the stepping motor to replace the electromagnet for driving.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a lockstitch sewing machine lifts presser foot mechanism which characterized in that: comprises a stepping motor, a lifting crank, a roller, a positioning shaft, a presser foot lifting driving frame and a presser foot lifting mandril;
the motor shaft of the stepping motor is sleeved with a lifting crank, the other end of the lifting crank is connected with a roller, the lifting presser foot driving frame is an irregular part, the roller is tangential to the inclined plane of the lifting presser foot driving frame, a positioning shaft is arranged in a five-round hole and a U-shaped groove round hole of the lifting presser foot driving frame in a penetrating mode, a reset torsion spring is sleeved on the positioning shaft, one end of the reset torsion spring is clamped at one side of the outer edge of the lifting presser foot driving frame, the other end of the reset torsion spring is clamped at the plane of an oil pan of the sewing machine, the inner side of the U-shaped groove round hole of the lifting presser foot driving frame is respectively attached to the second round hole and the third round hole of the oil pan of the sewing machine, the lifting presser foot driving frame is limited, and the presser foot lifting ejector rod is in contact with the round ball surface of the lifting presser foot driving frame.
Further, a screw is arranged in the threaded hole of the presser foot lifting driving frame, and the spherical surface of the presser foot lifting driving frame is ensured to be in contact with the presser foot lifting ejector rod through adjusting the distance between the screw and the circular arc surface of the oil disc.
Furthermore, the positioning shaft is limited by the shaft check ring which is positioned at the left side and the right side of the circular hole of the U-shaped groove of the presser foot lifting driving frame.
Further, the presser foot lifting push rod is arranged in the round hole IV of the sewing machine oil pan in a penetrating mode.
Compared with the prior art, the utility model has the following advantages:
the utility model realizes the lifting and falling functions of the presser foot by the cooperative control of the roller on the motor-driven lifting and pressing crank and the presser foot lifting and pressing driving frame, has compact structure, is convenient for assembly and maintenance, has the advantages of low noise, quick action response, high intelligent degree and the like, can be equipped with an electronic knee control, replaces the original mechanical transmission by an electronic signal, saves time and labor, and can control the height of the presser foot at will.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a floor mounting of the present utility model;
FIG. 3 is a schematic view of the oil pan structure of the present utility model;
FIG. 4 is a schematic view of the structure of the presser foot lifting driving frame of the present utility model; wherein a is a perspective view of a presser foot lifting driving frame; b is a perspective view of the presser foot lifting driving frame at another angle;
marking: 1. step motor 2, lifting and pressing crank, 3, roller, 4, positioning shaft, 5, lifting and pressing foot driving frame, 6, screw, 7, reset torsion spring, 8, shaft retainer ring, 9, oil pan, 10, pressing foot lifting ejector rod;
5-1 parts of inclined planes, 5-2 parts of round holes, 5-3 parts of threaded holes, 5-4 parts of outer edges, 5-5 parts of U-shaped groove round holes and 5-6 parts of spherical surfaces;
9-1, an arc surface, 9-2, a round hole I, 9-3, a plane, 9-4, a round hole II, 9-5, a round hole III, 9-6 and a round hole IV.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a presser foot lifting mechanism of a flat seaming machine, which is shown in figures 1-4, and comprises a stepping motor 1, a presser crank 2, a roller 3, a positioning shaft 4, a presser foot lifting driving frame 5, a screw 6, a reset torsion spring 7, a shaft retainer ring 8, an oil pan 9 and a presser foot lifting ejector rod 10;
the stepping motor 1 is arranged in the middle of a bottom plate of the sewing machine, the motor shaft is sleeved with the lifting and pressing crank 2, the other end of the lifting and pressing crank 2 is connected with the roller 3, the lifting and pressing foot driving frame 5 is an irregular part, the roller 3 is tangential to the inclined plane 5-1 of the lifting and pressing foot driving frame 5, the positioning shaft 4 respectively penetrates through a round hole of the oil disc 9 and a round hole five 5-2 of the lifting and pressing foot driving frame 5 and a U-shaped groove round hole 5-5, the positioning shaft 4 is sleeved with a reset torsion spring 7, one end of the reset torsion spring 7 is clamped at one side of the outer edge 5-4 of the lifting and pressing foot driving frame 5, the other end of the reset torsion spring is clamped at the plane 9-3 of the sewing machine oil disc, the oil disc 9 is arranged on the right side of the bottom plate of the sewing machine, the positioning shaft 4 is limited through the shaft retainer ring 8, and the shaft retainer ring 8 is positioned at the left side and the right side of the U-shaped groove round hole 5-5 of the lifting and pressing foot driving frame.
The inner side of the circular hole 5-5 of the U-shaped groove of the presser foot lifting driving frame 5 is respectively attached to the outer sides of the circular hole II 9-4 and the circular hole III 9-5 of the sewing machine oil tray 9 to limit the presser foot lifting driving frame 5, the circular hole IV 9-6 of the sewing machine oil tray 9 is internally provided with a presser foot lifting ejector rod 10 in a penetrating way, and the presser foot lifting ejector rod 10 is in contact with the spherical surface 5-6 of the presser foot driving frame 5.
The screw 6 is arranged on the threaded hole 5-3 of the presser foot lifting driving frame, and the distance between the screw 6 and the circular arc surface 9-1 of the oil pan is adjusted to ensure that the spherical surface 5-6 of the presser foot lifting driving frame is contacted with the presser foot lifting ejector rod 10.
The specific embodiment is as follows:
when the presser foot is lifted, the stepping motor 1 rotates clockwise to drive the roller 3 connected with the presser foot lifting crank 2 to rotate clockwise, the roller 3 is tangent to the inclined plane 5-1 of the presser foot lifting driving frame 5, so that the presser foot lifting driving frame 5 is driven to rotate anticlockwise, the reset torsion spring 7 is in a compressed state, and the spherical surface 5-6 of the presser foot lifting driving frame is contacted with the presser foot lifting lever 10, so that the presser foot lifting ejector rod 10 is lifted upwards.
When the presser foot falls down, the stepping motor 1 rotates anticlockwise to drive the roller 3 connected with the presser crank 2 to rotate anticlockwise, the presser foot lifting driving frame 5 rotates clockwise under the action of the reset torsion spring 7, and the inclined surface 5-1 of the presser foot lifting driving frame 5 contacts with the roller 3 again to return to the initial position.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model.
Claims (4)
1. The utility model provides a lockstitch sewing machine lifts presser foot mechanism which characterized in that: comprises a stepping motor (1), a lifting crank handle (2), a roller (3), a positioning shaft (4), a presser foot lifting driving frame (5) and a presser foot lifting mandril (10);
the motor shaft of the stepping motor (1) is sleeved with a lifting crank handle (2), the other end of the lifting crank handle (2) is connected with a roller (3), the lifting presser foot driving frame (5) is an irregular part, the roller (3) is tangential to the inclined plane (5-1) of the lifting presser foot driving frame (5), a positioning shaft (4) is arranged in a five (5-2) and a U-shaped groove round hole (5-5) in a penetrating mode, a reset torsion spring (7) is sleeved on the positioning shaft (4), one end of the reset torsion spring (7) is clamped on one side of the outer edge (5-4) of the lifting presser foot driving frame (5), the other end of the reset torsion spring is clamped on the plane (9-3) of the oil disc (9) of the sewing machine, the inner side of the U-shaped groove round hole (5-5) of the lifting presser foot driving frame (5) is respectively attached to the outer sides of a second round hole ejector rod (9-4) and a third round hole (9-5) of the presser foot driving frame (5), the lifting presser foot driving frame (5) is limited, and one end of the lifting presser foot driving frame (10) is contacted with the round ball surface (5-6) of the lifting presser foot driving frame (5) is contacted with the round ball surface (5-6) of the sewing machine.
2. The lockstitch sewing machine presser foot lifting mechanism of claim 1, wherein: screw (6) is arranged in threaded hole (5-3) of the presser foot lifting driving frame (5), and the distance between the screw (6) and the arc surface (9-1) of the oil disc (9) is adjusted to ensure that the spherical surface (5-6) of the presser foot lifting driving frame (5) is contacted with the presser foot lifting ejector rod (10).
3. The lockstitch sewing machine presser foot lifting mechanism according to claim 1 or 2, wherein: the positioning shaft (4) is limited by the shaft check ring (8), and the shaft check ring (8) is positioned at the left side and the right side of the U-shaped groove round hole (5-5) of the presser foot lifting driving frame (5).
4. A lockstitch sewing machine presser foot lifting mechanism as defined in claim 3, wherein: the presser foot lifting push rod (10) is arranged in a round hole IV (9-6) of the sewing machine oil tray (9) in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321189417.8U CN220166393U (en) | 2023-05-17 | 2023-05-17 | Presser foot lifting mechanism of flat sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321189417.8U CN220166393U (en) | 2023-05-17 | 2023-05-17 | Presser foot lifting mechanism of flat sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220166393U true CN220166393U (en) | 2023-12-12 |
Family
ID=89054955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321189417.8U Active CN220166393U (en) | 2023-05-17 | 2023-05-17 | Presser foot lifting mechanism of flat sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220166393U (en) |
-
2023
- 2023-05-17 CN CN202321189417.8U patent/CN220166393U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209722475U (en) | A kind of automatic needle-foot-lifting thread releasing mechanism and sewing machine | |
| CN107558015B (en) | Sewing machine and needle pitch adjusting mechanism thereof | |
| CN109487454B (en) | Presser foot device is lifted to sewing machine's trimming | |
| US20040255474A1 (en) | Reciprocating saw | |
| CN220166393U (en) | Presser foot lifting mechanism of flat sewing machine | |
| CN216919641U (en) | Presser foot mechanism is lifted in sewing machine's slide bar transmission | |
| CN2369805Y (en) | Curve saw driving and swing mechanism | |
| CN112430919B (en) | Needle bar driving clutch mechanism | |
| CN113235231B (en) | Thread trimming and presser foot lifting mechanism and overedger | |
| CN113668147B (en) | Sewing machine integrating presser foot lifting and thread tension adjusting | |
| CN210796864U (en) | Thread trimming and presser foot lifting mechanism of sewing machine | |
| CN212533357U (en) | Automatic lift presser foot mechanism | |
| CN213113804U (en) | Drive assembly in presser foot lifting mechanism of buttonholing machine | |
| CN217418980U (en) | Transmission piece for sewing machine and sewing machine | |
| CN215925270U (en) | Mechanism for lifting presser foot and trimming by motor double-cam drive and sewing machine | |
| CN215404895U (en) | Driving mechanism of lockstitch sewing machine | |
| CN218026676U (en) | Thread trimming and loosening mechanism and flat seaming machine | |
| CN216919640U (en) | Presser foot lifting mechanism of ejector rod of sewing machine | |
| CN216585558U (en) | Novel thread trimming and loosening mechanism and flat seaming machine | |
| CN217324534U (en) | Cam-driven presser foot lifting mechanism of sewing machine | |
| JP4852948B2 (en) | Sewing machine | |
| CN214362137U (en) | Thread trimming and presser foot lifting device of sewing machine | |
| CN214422864U (en) | Sewing machine thread trimming and presser foot lifting stepping control device | |
| CN216129758U (en) | Presser foot structure is lifted in sewing machine trimming | |
| CN215713810U (en) | Presser foot lifting structure of overedger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |