CN202482621U - Middle presser foot transmission structure of sewing machine - Google Patents
Middle presser foot transmission structure of sewing machine Download PDFInfo
- Publication number
- CN202482621U CN202482621U CN 201220078277 CN201220078277U CN202482621U CN 202482621 U CN202482621 U CN 202482621U CN 201220078277 CN201220078277 CN 201220078277 CN 201220078277 U CN201220078277 U CN 201220078277U CN 202482621 U CN202482621 U CN 202482621U
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- presser feet
- connecting rod
- head
- axle
- presser foot
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- 238000009958 sewing Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 title abstract 4
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a middle presser foot transmission structure of a sewing machine. The middle presser foot transmission structure comprises a presser foot rod connected with a presser foot, wherein the presser foot rod moves up and down along with a sewing needle in operation and presses fabric when the sewing needle is used for sewing. A nose is internally provided with a pressing arm shaft which can rotate, one end of the pressing arm shaft is connected with an upper shaft by virtue of a connecting mechanism and follows up the upper shaft, and the middle presser foot can move up and down conveniently along with the middle presser foot. The other end of the presser arm shaft is connected with a crank, and rotation motion of the upper shaft is converted into up-down motion of the presser foot rod through the crank, a first connecting rod, a triangular connecting plate and a presser foot driving rod; and the middle presser foot transmission structure disclosed by the utility model has the advantages of simple connection structure and convenience in mounting and maintenance.
Description
Technical field
The utility model relates to a kind of Sewing machines, specifically a kind of middle presser feet drive mechanism of Sewing machines.
Background technology
Sewing machines generally comprises support, is provided with workbench at the upper surface of support, above workbench, is provided with the presser feet that is used for the compress material, and the head of band shank.Some is used to make the Sewing machines of pattern design, and presser feet is pressed in the outer rim of sewing pattern, because institute's pressure scope is bigger, when the cloth of making was extracted, the cloth with the eedle place took up easily, influences the quality of tailoring pattern at eedle.Therefore, through a middle presser feet is set at the eedle place, before the sewing beginning, middle presser feet is depressed make it to get into duty.When work, middle presser feet can be sheathed on outside the eedle, and is driven and can be moved up and down with eedle by axle on the head.When eedle moved downward, middle presser feet was followed eedle and is pressed down lining; After eedle was extracted cloth, middle presser feet moved upward with eedle.The middle presser foot drive structure of existing Sewing machines is too complicated, is not easy to installation and maintenance.
Summary of the invention
The utility model technical problem to be solved is to above-mentioned prior art present situation, and a kind of middle presser feet drive mechanism of Sewing machines is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of middle presser feet drive mechanism of Sewing machines; Comprise head and the presser bar that is connected with presser feet; In head, be provided with the pressure arm axle that can rotate; One end of pressure arm axle is connected servo-actuated through bindiny mechanism with last axle, and the other end of pressure arm axle is connected with crank; Be provided with the connecting rod base that can rotate in the head, connecting rod base is provided with the triangle connecting plate; The middle part and the connecting rod base of triangle connecting plate are rotatably assorted; One end of triangle connecting plate is connected with crank through first connecting rod; The other end of triangle connecting plate rotates with the presser feet drive rod and is connected, and the presser feet drive rod is connected with presser bar joint on the presser bar, and the drive pressure foot lever moves up and down.
For optimizing technique scheme, the utility model also comprises following improved technical scheme.
Above-mentioned bindiny mechanism comprises driving cam that is arranged on the axle and the driving crank that is arranged on the pressure arm shaft end; Between driving cam and driving crank, be provided with connecting rod; The first end of connecting rod is sheathed on the outer bearing of driving cam, and the second end of connecting rod rotates with the first end of driving crank and is connected, and the second end of driving crank and pressure arm axle are fixedly connected.
The first end of above-mentioned driving crank is shaped on regulating tank, in regulating tank, is provided with the connecting axle that can regulate eccentric throw, and connecting axle is connected with the second end of connecting rod.
Be provided with guide post in the above-mentioned head, presser bar and guide post concentric are slidingly matched; Outside guide post, be arranged with spring, the upper end of spring fixedly installs, and matches with presser bar in the lower end of spring.
Above-mentioned head is equipped with the adjusting bolt that matches with guide post, regulates bolt and is outside equipped with adjusting nut.
Be provided with pull bar in the above-mentioned head, the first end of pull bar is connected with driving mechanism, and the second end of pull bar is arranged on the interior lifting arm of head with rotation and is connected, and the middle part of lifting arm is rotatably assorted through back shaft and head; The lifting parts of lifting arm is connected with connecting rod base.
Above-mentioned driving mechanism comprises motor and the drive rod at intermittence that is arranged on the casing afterbody by the driving cam and the rotation of driven by motor; Intermittently the first end of drive rod is provided with the camshaft that matches with driving cam, and intermittently the second end of drive rod and the first end of pull bar are rotationally connected.
Above-mentioned driving cam and travelling gear rotate through fulcrum shaft and are arranged on the motor seat, and travelling gear is meshed with driven wheel on the motor; Fulcrum shaft is connected with the sensor block, and motor seat sidewall is fixed with the sensor that detects the fulcrum shaft anglec of rotation.
Compared with prior art, the middle presser feet drive mechanism of the utility model has the presser bar that is connected with presser feet, and during work, presser bar moves up and down with eedle, when eedle is sewed, pushes down cloth.In head, be provided with the pressure arm axle that can rotate, an end of pressure arm axle is connected servo-actuated through bindiny mechanism with last axle, and presser feet moves up and down with eedle in being convenient to.The other end of pressure arm axle is connected with crank, through crank, first connecting rod, triangle connecting plate and presser feet drive rod, rotatablely moving of last axle is converted into moving up and down of presser bar, and it is simple to have syndeton, is convenient to the advantage of installation and maintenance.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the perspective view of the utility model embodiment.
Fig. 3 is the internal structure sketch map of Fig. 1.
Fig. 4 is the assembling decomposing schematic representation of Fig. 3.
The specific embodiment
Embodiment to the utility model describes in further detail below in conjunction with accompanying drawing.
Fig. 1 is extremely shown in Figure 4 to be the structural representation of the utility model.
Reference numeral wherein is: head 1; Presser bar 2; Presser bar joint 21; Guide post 22; Spring 23; Presser feet 24; Pressure arm axle 3; Crank 31; Driving crank 32; Regulating tank 32a; Connecting rod base 4; Triangle connecting plate 41; First connecting rod 42; Presser feet drive rod 43; Driving cam 5; Connecting rod 51; Bearing 52; Connecting axle 53; Regulate bolt 6; Adjusting nut 61; Pull bar 7; Lifting arm 71; Back shaft 71a; Lifting parts 71b; Motor 81; Driving cam 82; Drive rod 83 intermittently; Camshaft 83a; Travelling gear 84; Fulcrum shaft 85; Motor seat 86; Driven wheel 87; Sensor block 88; Sensor 89.
As shown in Figure 1, the middle presser feet drive mechanism of a kind of Sewing machines of the utility model comprises head 1 and the presser bar 2 that is connected with presser feet 24 is set.Presser feet 24 has pin hole, can move up and down with eedle, and push down cloth in lower limit.Eedle can pass the pin hole of presser feet 24 when moving up and down, sew.
In head 1, be provided with the pressure arm axle 3 that can rotate, an end of said pressure arm axle 3 is connected with last axle through bindiny mechanism, drives pressure arm axle 3 through last axle and rotates.The other end of pressure arm axle 3 is connected with crank 31.In head 1, be provided with the connecting rod base 4 that can rotate, connecting rod base 4 is provided with triangle connecting plate 41.The middle part of triangle connecting plate 41 and connecting rod base 4 are rotatably assorted, and an end of triangle connecting plate 41 is connected with crank 31 through first connecting rod 42, and the other end of triangle connecting plate 41 rotates with presser feet drive rod 43 and is connected.Presser feet drive rod 43 is connected with presser bar joint 21 on the presser bar 2, when pressure arm axle 3 rotates, be converted into moving up and down of presser feet drive rod 43 through crank 31, first connecting rod 42 and triangle connecting plate 41, thereby drive pressure foot lever 2 moves up and down.
Bindiny mechanism comprises driving cam 5 that is arranged on the axle and the driving crank 32 that is arranged on pressure arm axle 3 ends.Between driving cam 5 and driving crank 32, be provided with connecting rod 51; The first end of said connecting rod 51 is sheathed on the bearing 52 outside the driving cam 5, and the second end of connecting rod 51 rotates with the first end of driving crank 32 and is connected, and the second end of driving crank 32 and pressure arm axle 3 are fixedly connected.
The first end of driving crank 32 is shaped on regulating tank 32a, in regulating tank 32a, is provided with the connecting axle 53 that can regulate eccentric throw, and connecting axle 53 is connected with the second end of connecting rod 51.
Be provided with guide post 22 in the head 1, presser bar 2 is slidingly matched with guide post 22 concentrics.Outside guide post 22, be arranged with spring 23, the upper end of spring 23 fixedly installs, and matches with presser bar 2 in the lower end of spring 23.In the practical implementation process, the upper end of spring 23 cooperates with the locking cap butt of guide post 22 upper ends, and matching with the spring pipe box in the lower end of spring 23, and applies downward elastic force to presser bar 2.
Head 1 is equipped with the adjusting bolt 6 that matches with guide post 22, regulates bolt 6 and is outside equipped with adjusting nut 61.
In head 1, be provided with pull bar 7, the first end of said pull bar 7 is connected with driving mechanism, and the second end of pull bar 7 is arranged on head 1 interior lifting arm 71 with rotation and is connected.The middle part of lifting arm 71 is rotatably assorted through back shaft 71a and head 1, and the lifting parts 71b of lifting arm 71 is connected with connecting rod base 4.Behind the pull bar 7 pulling lifting arms 71, lifting arm 71 is around back shaft 71a rotation, and lifting parts 71b drivening rod seat 4 rises, and makes presser feet 24 rising power cut-offs; Otherwise presser feet 24 is descended get into duty.
Driving mechanism comprises motor 81 and the driving cam 82 that driven by motor 81 and rotate the drive rod 83 at intermittence that is arranged on the casing afterbody.Intermittently the first end of drive rod 83 is provided with the camshaft 83a that matches with driving cam 82, and intermittently the second end of drive rod 83 and the first end of pull bar 7 are rotationally connected.
Driving cam 82 rotates through fulcrum shaft 85 with travelling gear 84 and is arranged on the motor seat 86, and in specific embodiment, driving cam 82 can be made into integration with travelling gear 84, also can discretely also be fixed on together on the fulcrum shaft 85.
In an embodiment, travelling gear 84 is meshed with driven wheel 87 on the motor 81, drives driving cam 82 thus and rotates.On fulcrum shaft 85, be connected with sensor block 88, described motor seat 86 sidewalls are fixed with the sensor 89 that detects fulcrum shaft 85 anglecs of rotation.
The most preferred embodiment of the utility model is illustrated, and various variations of being made by those of ordinary skills or remodeling can not break away from the scope of the utility model.
Claims (8)
1. the middle presser feet drive mechanism of a Sewing machines; Comprise head (1) and be connected with the presser bar (2) of presser feet (24); It is characterized in that: in described head (1), be provided with the pressure arm axle (3) that can rotate; One end of said pressure arm axle (3) is connected servo-actuated through bindiny mechanism with last axle, and the other end of pressure arm axle (3) is connected with crank (31); Be provided with the connecting rod base (4) that can rotate in the described head (1), connecting rod base (4) is provided with triangle connecting plate (41); The middle part of said triangle connecting plate (41) and connecting rod base (4) are rotatably assorted; One end of triangle connecting plate (41) is connected with crank (31) through first connecting rod (42); The other end of triangle connecting plate (41) rotates with presser feet drive rod (43) and is connected; Described presser feet drive rod (43) is connected with presser bar joint (21) on the presser bar (2), and drive pressure foot lever (2) moves up and down.
2. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 1 is characterized in that: described bindiny mechanism comprises driving cam (5) that is arranged on the axle and the driving crank (32) that is arranged on pressure arm axle (3) end; Between said driving cam (5) and driving crank (32), be provided with connecting rod (51); The first end of said connecting rod (51) is sheathed on the outer bearing (52) of driving cam (5), and the second end of connecting rod (51) rotates with the first end of driving crank (32) and is connected, and the second end of driving crank (32) and pressure arm axle (3) are fixedly connected.
3. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 2; It is characterized in that: the first end of said driving crank (32) is shaped on regulating tank (32a); In regulating tank (32a), be provided with the connecting axle (53) that can regulate eccentric throw, described connecting axle (53) is connected with the second end of connecting rod (51).
4. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 3 is characterized in that: be provided with guide post (22) in the said head (1), described presser bar (2) is slidingly matched with guide post (22) concentric; Outside guide post (22), be arranged with spring (23), the upper end of said spring (23) fixedly installs, and matches with presser bar (2) in the lower end of spring (23).
5. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 4, it is characterized in that: said head (1) is equipped with the adjusting bolt (6) that matches with guide post (22), regulates bolt (6) and is outside equipped with adjusting nut (61).
6. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 5; It is characterized in that: be provided with pull bar (7) in the described head (1); The first end of said pull bar (7) is connected with driving mechanism; The second end of pull bar (7) is arranged on the interior lifting arm (71) of head (1) with rotation and is connected, and the middle part of described lifting arm (71) is rotatably assorted through back shaft (71a) and head (1); The lifting parts (71b) of lifting arm (71) is connected with connecting rod base (4).
7. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 6 is characterized in that: described driving mechanism comprises motor (81) and the driving cam (82) that driven by motor (81) and rotate the drive rod at intermittence (83) that is arranged on the casing afterbody; The first end of said drive rod at intermittence (83) is provided with the camshaft (83a) that matches with driving cam (82), and intermittently the second end of drive rod (83) and the first end of pull bar (7) are rotationally connected.
8. the middle presser feet drive mechanism of a kind of Sewing machines according to claim 7; It is characterized in that: described driving cam (82) and travelling gear (84) rotate through fulcrum shaft (85) and are arranged on the motor seat (86), and described travelling gear (84) is meshed with driven wheel (87) on the motor (81); Described fulcrum shaft (85) is connected with sensor block (88), and described motor seat (86) sidewall is fixed with the sensor (89) that detects fulcrum shaft (85) anglec of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220078277 CN202482621U (en) | 2012-03-05 | 2012-03-05 | Middle presser foot transmission structure of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220078277 CN202482621U (en) | 2012-03-05 | 2012-03-05 | Middle presser foot transmission structure of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202482621U true CN202482621U (en) | 2012-10-10 |
Family
ID=46957055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220078277 Expired - Fee Related CN202482621U (en) | 2012-03-05 | 2012-03-05 | Middle presser foot transmission structure of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202482621U (en) |
-
2012
- 2012-03-05 CN CN 201220078277 patent/CN202482621U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161012 Address after: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Patentee after: NINGBO SUPREME ELECTRONIC MACHINERY CO., LTD. Address before: 315100 No. 528 Jin Yuan Road, Yinzhou investment center, Ningbo, Zhejiang, Yinzhou District Patentee before: Ningbo Supreme Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20200305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |