CN220246412U - Lifting device for cloth dragging wheel and presser foot - Google Patents
Lifting device for cloth dragging wheel and presser foot Download PDFInfo
- Publication number
- CN220246412U CN220246412U CN202321412866.4U CN202321412866U CN220246412U CN 220246412 U CN220246412 U CN 220246412U CN 202321412866 U CN202321412866 U CN 202321412866U CN 220246412 U CN220246412 U CN 220246412U
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- China
- Prior art keywords
- presser foot
- wheel
- mop wheel
- lifting
- mop
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- 239000004744 fabric Substances 0.000 title abstract description 40
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 15
- 238000009958 sewing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a lifting device of a cloth dragging wheel and a presser foot, which comprises a machine head, a cloth dragging wheel mechanism and a presser foot mechanism, wherein the cloth dragging wheel mechanism and the presser foot mechanism are arranged on the machine head; a second crank which moves to the wheel placing station to enable the mop wheel pressing rod guide frame to be placed down under the action of the driving and pressing spring; and a third crank which moves to the presser foot micro-lifting station to press one end of the presser foot micro-lifting lever so that the other end drives the presser foot pressing lever guide frame to slightly lift. The utility model reduces the load of the main transmission mechanism by driving the cloth dragging wheel and the presser foot to move up and down without using the main transmission mechanism, simplifies various transmission components and has simple structure.
Description
Technical Field
The utility model relates to the technical field of sewing machines, in particular to a lifting device of a mop wheel and a presser foot.
Background
The cloth dragging wheel of the sewing machine is arranged at the rear of the presser foot of the sewing machine and is used for dragging the fabric by matching with the presser foot and teeth below the presser foot, the cloth dragging wheel is required to be lifted on the fabric after each work is completed, then the fabric is taken out, the presser foot is used for pressing the cloth on the cloth feeding teeth so as to enable the cloth to move during sewing, and fine adjustment is required to enable the cloth to move smoothly according to the different heights of the presser feet with different thicknesses of the fabric.
The existing lifting device of the cloth dragging wheel and the presser foot is usually connected with a main transmission mechanism through a series of transmission components, and the main transmission mechanism drives the lifting mechanism to lift, so that the load of the main transmission mechanism is increased, a plurality of transmission components are arranged, and the structure is complex.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the lifting device for the cloth dragging wheel and the presser foot, which is independently provided with the motor to control the lifting of the cloth dragging wheel and the presser foot, so that the lifting and the lowering of the cloth dragging wheel can be controlled, the presser foot can be slightly lifted according to the thickness of cloth, the load of a main transmission mechanism is reduced, and the structure is simple.
The technical scheme adopted is as follows:
the utility model provides a mop wheel and presser foot's hoisting device, includes the aircraft nose, sets up mop wheel mechanism and presser foot mechanism on the aircraft nose, mop wheel mechanism include the mop wheel, drag the cloth wheel depression bar, the cover is established and is exerted the drive pressure spring of downward pressure to the mop wheel depression bar on dragging the cloth wheel depression bar, locate the mop wheel pressure bar guide of drive pressure spring below, presser foot mechanism include presser foot, presser foot pressure bar guide, the aircraft nose on be equipped with the motor, the output shaft of motor on be equipped with hoisting mechanism, presser foot pressure bar guide and hoisting mechanism's below be equipped with the presser foot and slightly lift the lever, the presser foot slightly lift the lever rotatable coupling in aircraft nose correspond the department, hoisting mechanism including move to the first crank that lifts up of lifting wheel station contact drive mop wheel pressure bar guide, still include the second crank that moves to the wheel station makes the mop wheel pressure bar guide under the effect of drive pressure spring to lift down to the presser foot slightly, and move to slightly lift up the presser foot station and make its other end drive presser foot guide slightly to lift.
Further, the presser foot micro-lifting lever is connected with the machine head through an eccentric pin.
Further, the presser foot mechanism also comprises a presser foot pressing rod and a spring sleeved on the presser foot pressing rod.
Further, the first, second and third cranks are cylindrical cranks.
Further, a lifting spanner which is fixedly connected on the machine head through a screw is arranged below the mop wheel pressing rod guide frame.
Further, the mop wheel pressing rod guide frame is provided with a mop wheel extension plate extending to the lifting mechanism.
Further, the presser foot pressure bar guide frame is provided with a pressure bar extending plate extending towards the presser foot micro lifting lever.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a lifting device of a mop wheel and a presser foot, which comprises a machine head, a mop wheel mechanism and a presser foot mechanism, wherein the mop wheel mechanism and the presser foot mechanism are arranged on the machine head, the mop wheel mechanism comprises a mop wheel pressing rod guide frame connected to a mop wheel pressing rod, and the presser foot mechanism comprises a presser foot pressing rod guide frame connected to a presser foot pressing rod. The lifting device further comprises a motor arranged on the machine head, a lifting mechanism is arranged on an output shaft of the motor, a presser foot micro-lifting lever is arranged below the lifting mechanism and the presser foot pressing rod guide frame, a first crank, a second crank and a third crank are arranged on the lifting mechanism, the motor can drive the corresponding crank to rotate to different working positions to achieve lifting of the mop wheel and the presser foot, the first cylindrical crank rotates to the lower portion of the mop wheel pressing rod guide frame to drive the mop wheel pressing rod guide frame and the mop wheel to lift upwards, the second cylindrical crank is far away from the mop wheel pressing rod guide frame, the mop wheel pressing rod guide frame and the mop wheel are lowered, the third crank moves to one end of the presser foot micro-lifting lever, the other end of the presser foot pressing rod guide frame is driven to lift slightly, and the presser foot micro-lifting can be driven to adjust the height of the presser foot in time according to the thickness of cloth.
The utility model utilizes the independent motor to drive the lifting and lowering of the cloth dragging wheel and the micro-lifting of the presser foot simultaneously, does not need to drive the cloth dragging wheel and the presser foot to move up and down by a main transmission mechanism, reduces the load of the main transmission mechanism, simplifies various transmission components and has simple structure.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a part of the structure of the present utility model;
FIG. 3 is an enlarged view of FIG. 2 a;
FIG. 4 is a schematic view of the utility model in a raised position of the mop wheel;
FIG. 5 is an enlarged view at FIG. 4 b;
FIG. 6 is a schematic view of a presser foot micro-lift lever;
FIG. 7 is a schematic view of a drop down state of a mop wheel of the present utility model;
FIG. 8 is an enlarged view of FIG. 7 c;
FIG. 9 is a schematic view of the micro-lifting of the presser foot of the present utility model;
FIG. 10 is an enlarged view of FIG. 9 d;
the machine head 1, a mop wheel mechanism 2, a mop wheel 201, a pressing rod 202, a driving and pressing spring 203, a mop wheel pressing rod guide frame 204, a lifting spanner 205, a presser foot mechanism 3, a presser foot 301, a presser foot pressing rod guide frame 302, a lifting mechanism 4, a first crank 401, a second crank 402, a third crank 403, a presser foot micro-lifting lever 5, an eccentric pin 6, a mop wheel extension plate 7, a presser foot extension plate 8 and a motor 9.
Detailed Description
The utility model is further described below in connection with specific embodiments.
Referring to fig. 1-10, a lifting device for a cloth dragging wheel and a presser foot comprises a machine head 1, a cloth dragging wheel mechanism 2 and a presser foot mechanism 3 which are arranged on the machine head, wherein the cloth dragging wheel mechanism 2 comprises a cloth dragging wheel 201, a cloth dragging wheel pressing rod 202, a driving spring 203 sleeved on the cloth dragging wheel pressing rod 202 and used for applying downward pressure to the cloth dragging wheel pressing rod, a cloth dragging wheel pressing rod guide frame 204 arranged below the driving spring 203, the presser foot mechanism 3 comprises a presser foot 301 and a presser foot pressing rod guide frame 302, a motor 9 is arranged on the machine head 1, a lifting mechanism 4 is arranged on an output shaft of the motor, a presser foot pressing rod guide frame 302 and a presser foot micro-lifting lever 5 is arranged below the lifting mechanism 4, the presser foot micro-lifting lever is rotatably connected to a corresponding part of the machine head 1, the lifting mechanism 4 comprises a first crank 401 which moves to a lifting wheel station to contact and drive the cloth dragging wheel pressing rod guide frame 204, a second crank 402 which moves to a lifting wheel pressing rod guide frame 204 to be lowered under the action of the driving spring, and a second crank 403 which moves to a second end of the lifting rod guide frame under the driving spring, and a presser foot pressing rod guide frame 403 which moves to a third crank pressing rod to lift one end of the presser foot to a presser foot 2.
Further, the cloth dragging wheel mechanism 2 and the presser foot mechanism 3 are arranged on the machine head 1 side by side in front of and behind, and a bottom plate is arranged below the machine head and used for placing cloth for sewing.
Further, the lifting mechanism 4 is connected with an output shaft of a motor 9, and the motor can drive the lifting mechanism 4 to rotate so as to change the positions of three cranks on the lifting mechanism 4.
Further, the first crank, the second crank and the third crank are cylindrical cranks, when the first crank 401 moves to a wheel lifting station, namely the first crank moves to the lower part of the mop wheel pressing rod guide frame 204, the cylindrical surface of the first crank 401 contacts the lower end surface of the mop wheel pressing rod guide frame 204, and the first crank rotates to provide lifting force for lifting the mop wheel pressing rod guide frame 204, so that the mop wheel pressing rod guide frame 204 and the mop wheel 201 are driven to lift, and at the moment, the mop wheel is in a lifting non-working state; when the second crank 402 moves to the wheel placing station, the second crank 402 and the first crank 401 are not contacted with the mop wheel pressing rod guide frame 204, the mop wheel pressing rod guide frame 204 loses upward lifting force, and automatically resets under the action of the driving and pressing spring 203, and the mop wheel pressing rod guide frame 204 and the mop wheel 201 are placed in the working position; when the third crank 403 moves to the presser foot micro-lifting station, the third crank 403 rotates to drive one end of the presser foot micro-lifting lever 5 to be downward, and the other end of the presser foot micro-lifting lever 5 is arranged below the presser foot pressure lever guide frame 302 to drive the presser foot pressure lever guide frame 302 to be lifted upward slightly.
Further, the presser foot micro-lifting lever 5 is connected with the machine head 1 through an eccentric pin 6. The eccentric pin 6 is arranged to further adjust the height of the presser foot micro-lifting lever 5, so that the lifting range of the presser foot is enlarged.
Further, the presser foot mechanism 3 further includes a presser foot pressing rod 303, and a spring sleeved on the presser foot pressing rod 303. The spring is used for driving the presser foot to move up and down, and the lifting mechanism of the presser foot can adopt the prior art.
Further, a lifting spanner 205 fixedly connected to the machine head 1 through a screw is arranged below the mop wheel pressing rod guide frame 204. The lifting spanner 205 is used for manually adjusting the height of the mop wheel and the mop wheel pressing rod guide frame.
Further, the mop wheel press bar guide 204 is provided with a mop wheel extension plate 7 extending to the lifting mechanism 4. The extension plate of the cloth dragging wheel is convenient to contact with a crank on the lifting mechanism, so that the purpose of lifting is achieved.
Further, the presser bar guide 302 is provided with a presser bar extension board 8 extending toward the presser bar micro-lift lever 5. The presser foot extension plate 8 is provided to facilitate contact between the presser foot bar guide 302 and the presser foot micro-lift lever 5.
The utility model utilizes the independent motor to drive the lifting and lowering of the cloth dragging wheel and the micro-lifting of the presser foot simultaneously, does not need to drive the cloth dragging wheel and the presser foot to move up and down by a main transmission mechanism, reduces the load of the main transmission mechanism, simplifies various transmission components and has simple structure.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a lifting device of mop wheel and presser foot, includes aircraft nose (1), sets up mop wheel mechanism (2) and presser foot mechanism (3) on the aircraft nose, mop wheel mechanism (2) including mop wheel (201), mop wheel press bar (202), cover establish on mop wheel press bar (202) to apply the drive pressure spring (203) of downward pressure to the mop wheel press bar, locate mop wheel press bar guide (204) of drive pressure spring (203) below, presser foot mechanism (3) include presser foot (301), presser foot press bar guide (302), its characterized in that: the machine head (1) on be equipped with motor (9), the output shaft of motor on be equipped with hoist mechanism (4), the below of presser foot depression bar guide (302) and hoist mechanism (4) be equipped with presser foot micro-lift lever (5), presser foot micro-lift lever rotatable coupling in the corresponding department of machine head (1), hoist mechanism (4) including moving to lifting wheel station contact drive mop wheel depression bar guide (204) first crank (401) that lift, still including moving to the second crank (402) that the wheel station made mop wheel depression bar guide (204) put under the effect of drive pressure spring to and move to the presser foot micro-lift station and push down presser foot micro-lift lever (5) one end and make its other end drive presser foot depression bar guide (302) micro-lift's third crank (403).
2. A mop wheel and presser foot lifting device as claimed in claim 1, characterized in that: the presser foot micro-lifting lever (5) is connected with the machine head (1) through an eccentric pin (6).
3. A mop wheel and presser foot lifting device as claimed in claim 1, characterized in that: the presser foot mechanism (3) further comprises a presser foot pressing rod (303), and a spring sleeved on the presser foot pressing rod (303).
4. A mop wheel and presser foot lifting device as claimed in claim 1, characterized in that: the first, second and third cranks are cylindrical cranks.
5. A mop wheel and presser foot lifting device as claimed in claim 1, characterized in that: a lifting spanner (205) fixedly connected to the machine head (1) through a screw is arranged below the mop wheel pressing rod guide frame (204).
6. A mop wheel and presser foot lifting device as claimed in claim 1, characterized in that: the mop wheel pressing rod guide frame (204) is provided with a mop wheel extension plate (7) extending to the lifting mechanism (4).
7. A mop wheel and presser foot lifting device as claimed in claim 1, characterized in that: the presser foot pressure bar guide frame (302) is provided with a pressure bar extending plate (8) extending towards the presser foot micro-lifting lever (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321412866.4U CN220246412U (en) | 2023-06-05 | 2023-06-05 | Lifting device for cloth dragging wheel and presser foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321412866.4U CN220246412U (en) | 2023-06-05 | 2023-06-05 | Lifting device for cloth dragging wheel and presser foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220246412U true CN220246412U (en) | 2023-12-26 |
Family
ID=89264816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321412866.4U Active CN220246412U (en) | 2023-06-05 | 2023-06-05 | Lifting device for cloth dragging wheel and presser foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220246412U (en) |
-
2023
- 2023-06-05 CN CN202321412866.4U patent/CN220246412U/en active Active
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