CN205917425U - Automatic trimming and automatic drive arrangement who lifts presser foot - Google Patents
Automatic trimming and automatic drive arrangement who lifts presser foot Download PDFInfo
- Publication number
- CN205917425U CN205917425U CN201620830633.XU CN201620830633U CN205917425U CN 205917425 U CN205917425 U CN 205917425U CN 201620830633 U CN201620830633 U CN 201620830633U CN 205917425 U CN205917425 U CN 205917425U
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- trimming
- presser foot
- connecting rod
- face
- lifting
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Abstract
The utility model belongs to the technical field of sewing machine, a simple structure is specifically indicated and the automatic trimming and automatic drive arrangement who lifts presser foot of sewing machine steady operation can be guaranteed, including lift presser foot transfer line, trimming transfer line, step motor, setting at step motor overhead cam body, lift presser foot connecting rod and trimming connecting rod, be provided with the presser foot driving cam face of lifting and the trimming driving cam face that all include base circle face and lift curved surface on the cam body, the other end of lifting the presser foot connecting rod articulates in the one end of lifting the presser foot transfer line, lifts and is equipped with first driven pin on the presser foot connecting rod, the other end of trimming connecting rod articulates there is the trimming transfer line, is equipped with the driven pin of second on the trimming connecting rod, during the certain angle of the clockwise driving cam body of step motor, one of them driven pin gets into the lift curved surface from the base circle face, and another driven pin slides on the base circle face, rotated counter -clockwise, another driven pin gets into the lift curved surface from the base circle face, and a driven pin slides on the base circle face.
Description
Technical field
This utility model belongs to sewing machine technique field, refers specifically to the driving dress of a kind of automatic shearing and automatic needle-foot-lifting
Put.
Background technology
On sewing machine, the hook line bar for trimming and the presser feet pull bar for presser foot lifter pass through two electric magnet respectively at present
It is controlled, when needing to carry out trimming operation, line bar is hooked by a magnet control and moves back and forth, when needing to carry out presser foot lifter
When, moved back and forth by another magnet control presser feet pull bar.Because electric magnet is differed greatly with speed when flicking in adhesive,
Therefore hook line bar or presser feet pull bar often produces larger sound and rocks when moving back and forth, and then be possible to affect sewing machine
Steady operation.
Content of the invention
In order to overcome defect of the prior art, the purpose of this utility model is to provide a kind of structure simple and can ensure
The automatic shearing of sewing machine stable operation and the driving means of automatic needle-foot-lifting.
The purpose of this utility model is achieved in that
A kind of automatic shearing and the driving means of automatic needle-foot-lifting, including presser foot lifter drive link, trimming drive link, stepping electricity
Machine, cam body, presser foot lifter connecting rod and trimming connecting rod, described cam body is arranged on the output shaft of motor；Institute
State and presser foot lifter driving cam face and trimming driving cam face are provided with cam body；One end of described presser foot lifter connecting rod is hinged
On sewing machine housing, the other end of presser foot lifter connecting rod is articulated with one end of presser foot lifter drive link, in presser foot lifter connecting rod also
It is provided with the first driven pin, the first driven pin slides along presser foot lifter driving cam face；One end of described trimming connecting rod
It is articulated with sewing machine housing, the other end of trimming connecting rod is hinged with described trimming drive link, and trimming connecting rod also sets up
There is the second driven pin, the second driven pin slides along trimming driving cam face；Presser foot lifter driving cam face and trimming drive
Cam surface all includes basic circle face and lifting curve；When presser foot lifter drive link and trimming drive link are in initial state, two
Driven pin bears against on corresponding basic circle face；Motor drives described cam body certain in initial state clockwise
During angle, one of driven pin enters lifting curve from basic circle face, and another driven pin slides on basic circle face；Stepping
When initial state drives described cam body certain angle counterclockwise, another driven pin enters lift from basic circle face to motor
Curved surface, a driven pin slides on basic circle face.
This utility model is further arranged to: described cam body is disc cam, and the end face of cam body is provided with
Described presser foot lifter driving cam face, the other end of cam body is provided with described trimming driving cam face.
This utility model is further arranged to: described trimming driving cam face is the rail groove concaving.
This utility model is further arranged to: described presser foot lifter driving cam face includes the first basic circle and the first lift is bent
Face, described first basic circle is arranged concentrically with cam body, the outside eccentric setting of the first lifting curve.
This utility model is further arranged to: described rail groove includes the second basic circle and the second lifting curve, and described second
Basic circle is arranged concentrically with cam body, the central protuberance of the inside cam body of the second lifting curve.
This utility model is further arranged to: described rail groove also includes the 3rd lift song extending to the first basic circle head end
Face, described 3rd lifting curve protrudes to the periphery of cam body.
This utility model is further arranged to: the junction of described first basic circle and the first lifting curve is provided with and stretches out
Position-arresting part one.
This utility model is further arranged to: the middle part of described presser foot lifter connecting rod is movably set with the first driven pin,
One end of first driven pin is provided with rotatable first runner, and described first runner is along the periphery in presser foot lifter driving cam face
Wall moves back and forth.
This utility model is further arranged to: the second driven pin is movably set with described trimming connecting rod, second from
One end of dynamic pin is provided with rotatable second runner, and described second runner is adapted to rail groove, and described second runner is along rail
The inwall of road groove moves back and forth.
This utility model is further arranged to: described trimming connecting rod passes through link rod slide company spherical with trimming drive link
Connect.
This utility model projects compared to existing technology and beneficial having the technical effect that replaces tradition by a motor
Two high-power electromagnets of mode, decrease the structure of driving means, install cam body on the output shaft of motor
Cutting facility and presser foot lifting device can be simultaneously driven, so can keep presser foot lifter driving cam face and trimming driving cam face
Rotary speed keeps identical, and angular velocity immobilizes, and positioning is more reliable, the presser foot lifter transmission when sewing machine operates simultaneously
Bar, the ejection of trimming drive link are identical with the dynamics reclaiming, and whole device stability so can be made to improve, make the rolling of whole device
Dynamic and noise reduces.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is configuration schematic diagram of the present utility model；
Fig. 3 is the partial structural diagram in this utility model one direction；
Fig. 4 is the partial structural diagram of this utility model other direction；
Fig. 5 is the structural representation in this utility model presser foot lifter driving cam face；
Fig. 6 is the structural representation of this utility model rail groove.
In figure label implication:
1- housing；2- presser foot lifter drive link；3- trimming drive link；4- motor；5- cam body；
6- presser foot lifter driving cam face；61- first basic circle；62- first lifting curve；63- position-arresting part one；
7- rail groove；71- second basic circle；72- second lifting curve；73- the 3rd lifting curve；
8- presser foot lifter connecting rod；9- trimming connecting rod；10- first runner；11- second runner；12- link rod；
The driven pin of 13- first；The driven pin of 14- second.
Specific embodiment
With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings:
Referring to shown in Fig. 1 to Fig. 6, the driving means of a kind of automatic shearing and automatic needle-foot-lifting, including presser foot lifter drive link
2nd, trimming drive link 3, motor 4, cam body 5, presser foot lifter connecting rod 8 and trimming connecting rod 9, described cam body 5 sets
Put on the output shaft of motor 4；Presser foot lifter driving cam face 6 and trimming driving cam are provided with described cam body 5
Face；One end of described presser foot lifter connecting rod 8 is articulated with sewing machine housing 1, and the other end of presser foot lifter connecting rod 8 is articulated with lift pressure
One end of foot drive link 2, presser foot lifter connecting rod 8 is additionally provided with the first driven pin 13, and the first driven pin 13 is along lift pressure
Slide in foot driving cam face 6；One end of described trimming connecting rod 9 is articulated with sewing machine housing 1, trimming connecting rod 9 another
End is hinged with described trimming drive link 3, and trimming connecting rod 9 is additionally provided with the second driven pin 14, the second driven pin 14 edge
Trimming driving cam face to slide；Presser foot lifter driving cam face 6 and trimming driving cam face all include basic circle face and lifting curve；
When presser foot lifter drive link 2 and trimming drive link 3 are in initial state, two driven pins bear against in corresponding basic circle
On face；Motor 4 when initial state clockwise drives described cam body 5 certain angle, one of driven pin from
Basic circle face enters lifting curve, and another driven pin slides on basic circle face；Motor 4 drives counterclockwise in initial state
During described cam body 5 certain angle, another driven pin enters lifting curve from basic circle face, and a driven pin is in basic circle
Slide on face, replace two high-power electromagnets of traditional approach by a motor 4, decrease the knot of driving means
Structure, installs cam body 5 on the output shaft of motor 4 and can simultaneously drive cutting facility and presser foot lifting device, so permissible
So that whole device stability is improved, so that rocking of whole device is reduced with noise.
It is further arranged to: described cam body 5 is disc cam, the end face of cam body 5 is provided with described lift pressure
Foot driving cam face 6, the other end of cam body 5 is provided with described trimming driving cam face.
It is further arranged to: described trimming driving cam face is the rail groove 7 concaving.
It is further arranged to: described presser foot lifter driving cam face 6 includes the first basic circle 61 and the first lifting curve 62, described
First basic circle 61 and cam body 5 are arranged concentrically, the outside eccentric setting of the first lifting curve 62.
It is further arranged to: described rail groove 7 includes the second basic circle 71 and the second lifting curve 72, described second basic circle 71
It is arranged concentrically with cam body 5, the central protuberance of the inside cam body 5 of the second lifting curve 72.
It is further arranged to: described rail groove 7 also includes the 3rd lifting curve 73 extending to the first basic circle 61 head end, institute
State the 3rd lifting curve 73 to protrude to the periphery of cam body 5, such 3rd lifting curve 73 can be to the fortune of trimming connecting rod 9
Dynamic rail mark plays a protective role, and in trimming connecting rod 9, after the second lifting curve 72, the 3rd lifting curve 73 can to trimming even
Extension bar 9 plays buffering effect, it is to avoid trimming connecting rod 9 trimming drives trimming drive link 3 to move, and protects cutting facility.
It is further arranged to: the junction of described first basic circle 61 and the first lifting curve 62 is provided with the stop bit stretching out
Portion 1, position-arresting part 1 rotation of cam body 5 can be carried out one spacing, it is to avoid cam body 5 rotate excessive to lift
Foot device causes to damage.
It is further arranged to: the middle part of described presser foot lifter connecting rod 8 is movably set with the first driven pin 13, and first is driven
One end of pin 13 is provided with rotatable first runner 10, and described first runner 10 is along the periphery in presser foot lifter driving cam face 6
Wall moves back and forth.
It is further arranged to: the second driven pin 14, the second driven pin 14 are movably set with described trimming connecting rod 9
One end be provided with rotatable second runner 11, described second runner 11 is adapted to rail groove 7, and described second runner 11 is along rail
The inwall of road groove 7 moves back and forth.
It is further arranged to: described trimming connecting rod 9 is slidably connected by link rod 12 is spherical with trimming drive link 3.
The presser foot lifter driving cam face 6 on cam body 5 and the rotary speed of rail groove 7 so can be kept to keep completely
Identical, and angular velocity immobilizes, and positions more reliable, presser foot lifter drive link 2, trimming drive link 3 when sewing machine operates simultaneously
Eject identical with the dynamics reclaiming, whole device stability so can be made to improve, so that rocking of whole device is reduced with noise.
The action of sewing machine is divided into two: trimming and presser foot lifter.
When presser foot lifter driving cam face 6 is installed towards the outside of motor 4:
During motor 4 reversion, the first runner 10 is along the periphery wall fortune of the first basic circle 61 on presser foot lifter driving cam face 6
Dynamic, because the first circular arc is arranged concentrically with cam body 5, the first runner 10 does not drive presser foot lifter connecting rod 8 to move, and presser foot lifter is no
Action；And the second runner 11 in the rail groove 7 of cam body 5 another side then enters into the second lift song along the second basic circle 71
Face 72, the second runner 11 running orbit changes, and so that the second runner 11 and the distance at cam body 5 center is shortened, thus carrying
One end of dynamic trimming connecting rod 9 drives link rod 12, and link rod 12 drives trimming drive link 3 to drive cutting facility to produce trimming action；
When motor 4 rotates forward, the second runner 11 operates along the second circular arc, the first base on presser foot lifter driving cam face 6
The periphery wall motion of circle 61, because the second circular arc is arranged concentrically with cam body 5, the second runner 11 does not drive trimming connecting rod 9
Motion, cutting facility attonity；And the first runner 10 then enters into the first lifting curve 62 along the first basic circle 61, the first runner
10 running orbits change, and make the first runner 10 elongated with the distance at cam body 5 center, thus driving presser foot lifter connecting rod
8 one end drives presser foot lifter drive link 2 to drive presser foot lifting device to realize presser foot lifter.
When presser foot lifter driving cam face 6 is installed towards the inner side of motor 4: when motor 4 rotates forward, presser foot lifter is no dynamic
Make, cutting facility produces trimming action；During motor 4 reversion, cutting facility attonity, presser foot lifting device realizes presser foot lifter.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection model of the present utility model according to this
Enclose, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, protection of the present utility model all should be covered by
Within the scope of.
Claims (10)
1. the driving means of a kind of automatic shearing and automatic needle-foot-lifting, including presser foot lifter drive link and trimming drive link；Its feature
It is: also include motor, cam body, presser foot lifter connecting rod and trimming connecting rod, described cam body is arranged on stepping
On the output shaft of motor；Presser foot lifter driving cam face and trimming driving cam face are provided with described cam body；Described lift pressure
One end of foot connecting rod is articulated with sewing machine housing, and the other end of presser foot lifter connecting rod is articulated with the one of presser foot lifter drive link
End, presser foot lifter connecting rod is additionally provided with the first driven pin, and the first driven pin slides along presser foot lifter driving cam face；Institute
The one end stating trimming connecting rod is articulated with sewing machine housing, and the other end of trimming connecting rod is hinged with described trimming drive link,
Second driven pin is additionally provided with trimming connecting rod, the second driven pin slides along trimming driving cam face；Presser foot lifter drives
Moving cam face and trimming driving cam face all include basic circle face and lifting curve；When presser foot lifter drive link and trimming drive link are all located
When initial state, two driven pins bear against on corresponding basic circle face；Motor drives clockwise in initial state
When moving described cam body certain angle, one of driven pin enters lifting curve, another driven pin from basic circle face
Slide in basic circle face；, when initial state drives described cam body certain angle counterclockwise, another is driven for motor
Pin enters lifting curve from basic circle face, and a driven pin slides on basic circle face.
2. a kind of automatic shearing according to claim 1 and automatic needle-foot-lifting driving means it is characterised in that: described convex
Wheel body is disc cam, and the end face of cam body is provided with described presser foot lifter driving cam face, the other end of cam body
Face is provided with described trimming driving cam face.
3. a kind of automatic shearing according to claim 1 and 2 and automatic needle-foot-lifting driving means it is characterised in that: institute
Stating trimming driving cam face is the rail groove concaving.
4. a kind of automatic shearing according to claim 1 and 2 and automatic needle-foot-lifting driving means it is characterised in that: institute
State presser foot lifter driving cam face and include the first basic circle and the first lifting curve, described first basic circle is arranged concentrically with cam body,
The outside eccentric setting of first lifting curve.
5. a kind of automatic shearing according to claim 3 and automatic needle-foot-lifting driving means it is characterised in that: described rail
Road groove includes the second basic circle and the second lifting curve, and described second basic circle is arranged concentrically with cam body, the second lifting curve to
The central protuberance of cam ring body.
6. a kind of automatic shearing according to claim 5 and automatic needle-foot-lifting driving means it is characterised in that: described rail
Road groove also includes the 3rd lifting curve extending to the first basic circle head end, and described 3rd lifting curve is convex to the periphery of cam body
Go out.
7. a kind of automatic shearing according to claim 4 and automatic needle-foot-lifting driving means it is characterised in that: described
The junction of one basic circle and the first lifting curve is provided with the position-arresting part one stretching out.
8. the driving dress of a kind of automatic shearing according to claim 1 or 2 or 5 or 6 or 7 any one and automatic needle-foot-lifting
Put it is characterised in that: the middle part of described presser foot lifter connecting rod is movably set with the first driven pin, one end of the first driven pin
It is provided with rotatable first runner, described first runner moves back and forth along the periphery wall in presser foot lifter driving cam face.
9. a kind of automatic shearing according to claim 8 and automatic needle-foot-lifting driving means it is characterised in that: described cut
Second driven pin is movably set with line connecting rod, one end of the second driven pin is provided with rotatable second runner, institute
State the second runner to be adapted to rail groove, described second runner moves back and forth along the inwall of rail groove.
10. a kind of automatic shearing according to claim 9 and automatic needle-foot-lifting driving means it is characterised in that: described
Trimming connecting rod is slidably connected by link rod is spherical with trimming drive link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620830633.XU CN205917425U (en) | 2016-07-30 | 2016-07-30 | Automatic trimming and automatic drive arrangement who lifts presser foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620830633.XU CN205917425U (en) | 2016-07-30 | 2016-07-30 | Automatic trimming and automatic drive arrangement who lifts presser foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205917425U true CN205917425U (en) | 2017-02-01 |
Family
ID=57870075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620830633.XU Active CN205917425U (en) | 2016-07-30 | 2016-07-30 | Automatic trimming and automatic drive arrangement who lifts presser foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205917425U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012323A (en) * | 2016-07-30 | 2016-10-12 | 浙江杜马缝纫机股份有限公司 | Driving device for automatic thread trimming and automatic presser foot lifting |
| CN109509648A (en) * | 2017-09-15 | 2019-03-22 | Abb有限公司 | Deceleration mechanism and switching device for switching device |
| CN109554849A (en) * | 2019-02-02 | 2019-04-02 | 叶朋成 | A kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting |
| CN114150446A (en) * | 2020-09-07 | 2022-03-08 | 杰克科技股份有限公司 | Sewing machine trimming and presser foot lifting device and sewing machine |
-
2016
- 2016-07-30 CN CN201620830633.XU patent/CN205917425U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012323A (en) * | 2016-07-30 | 2016-10-12 | 浙江杜马缝纫机股份有限公司 | Driving device for automatic thread trimming and automatic presser foot lifting |
| CN109509648A (en) * | 2017-09-15 | 2019-03-22 | Abb有限公司 | Deceleration mechanism and switching device for switching device |
| CN109554849A (en) * | 2019-02-02 | 2019-04-02 | 叶朋成 | A kind of automatic shearing of flat seam machine and the synchronization mechanism of automatic needle-foot-lifting |
| CN114150446A (en) * | 2020-09-07 | 2022-03-08 | 杰克科技股份有限公司 | Sewing machine trimming and presser foot lifting device and sewing machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |