CN214655623U - Sewing machine is down in same direction as seam stitch length and is adjusted and lift presser foot device - Google Patents
Sewing machine is down in same direction as seam stitch length and is adjusted and lift presser foot device Download PDFInfo
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- CN214655623U CN214655623U CN202120269399.9U CN202120269399U CN214655623U CN 214655623 U CN214655623 U CN 214655623U CN 202120269399 U CN202120269399 U CN 202120269399U CN 214655623 U CN214655623 U CN 214655623U
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Abstract
The utility model belongs to the technical field of sewing equipment, in particular to a device for adjusting the stitch length of a reverse and forward sewing and lifting a presser foot of a sewing machine; a clutch cam assembly is arranged on a rotating shaft of the driving motor, the clutch cam assembly comprises a clutch part and a cam part, the clutch part is in clutch connection with the needle pitch adjusting crank, a separation driving assembly for driving the needle pitch adjusting crank to be separated from the clutch part is arranged on one side of the needle pitch adjusting crank, the needle pitch adjusting crank is connected with the swinging seat through a material reversing connecting rod, the cam part comprises an idle stroke section and a presser foot lifting driving section, and a presser foot lifting driving assembly for driving the presser foot lifting mechanism to act is arranged on one side of the cam part; the utility model discloses realize respectively by a driving motor that the down and up stitch gauge is adjusted and lift the action of presser foot, mutually noninterfere when carrying out two actions, compact structure, effective reduction in production cost.
Description
The technical field is as follows:
the utility model belongs to the technical field of sewing equipment, refer in particular to a sewing machine is down in the same direction as seam gauge adjustment and is lifted presser foot device.
Background art:
with the improvement of the automation degree of the sewing machine, the actions of each mechanism on the sewing machine are increasingly controlled in an automated manner. Such as a backward and forward sewing stitch length adjusting device and a presser foot lifting device on a sewing machine. In order to realize automatic control, the chinese utility model patent (application publication No. 105821597a, application publication No. 2016.08.03) discloses an automatic presser foot lifting and backward and forward sewing device of a sewing machine. The lifting and pressing foot driver is provided with a first straight rod capable of reciprocating, and the first straight rod is connected with one end of a pull rope of the pull rope component; the other end of the pull rope is connected with one end of the swinging rod; the swing rod can swing around the swing center; the other end of the swinging rod is in contact with one end of a pressure foot lifting rear lever, and the pressure foot lifting rear lever can swing around the axis of the pressure foot lifting rear lever; the other end of the lever after the presser foot is lifted is connected with the presser foot lifting mechanism, and the operation of the presser foot lifting mechanism can be driven through the swinging of the lever after the presser foot is lifted; the backward and forward sewing driver is provided with a second straight rod capable of reciprocating, the second straight rod is connected with one end of a pull rod, and the other end of the pull rod is connected with the swinging plate seat; the swing plate seat can swing around the swing axis of the swing plate seat, and the operation of backward and forward seams can be realized through the swing of the swing plate seat. From the above, the above patent includes two drivers, i.e. a presser foot lifting driver and a forward and backward sewing driver, which have the defects of complicated structure, high cost, etc.
The invention content is as follows:
the utility model aims at providing a by a driving motor drive, compact structure, with low costs sewing machine back and forth stitch gauge adjustment and lift presser foot device.
The utility model discloses a realize like this:
a sewing machine backward and forward sewing stitch length adjusting and presser foot lifting device comprises a driving motor and a swing seat, wherein a clutch cam assembly is arranged on a rotating shaft of the driving motor and comprises a clutch part and a cam part, the clutch part is in clutch connection with a stitch length adjusting crank, a clutch driving assembly for driving the stitch length adjusting crank to be disengaged from the clutch part is arranged on one side of the stitch length adjusting crank, the stitch length adjusting crank is connected with the swing seat through a backward feeding connecting rod, the cam part comprises an idle stroke section and a presser foot lifting driving section, and a presser foot lifting driving assembly for driving a presser foot lifting mechanism to act is arranged on one side of the cam part;
when the needle pitch of the backward and forward sewing is adjusted, the needle pitch adjusting crank is combined with the clutch part and synchronously rotates with the clutch cam component to drive the swinging seat to swing, at the moment, the pressure raising and pressing foot driving component corresponds to the idle stroke section of the cam part, and the pressure raising and pressing foot driving component does not act;
when the presser foot is lifted, the cam part rotates to the presser foot lifting driving section to act on the presser foot lifting driving component to drive the presser foot lifting mechanism to lift the presser foot, at the moment, the clutch driving component drives the needle pitch adjusting crank to be disengaged from the clutch part, the needle pitch adjusting crank does not rotate, and the swinging seat does not act.
In the sewing machine backward and forward sewing needle distance adjusting and presser foot lifting device, the clutch part comprises a clutch body arranged on a rotating shaft, more than one mounting hole arranged along the axial direction is circumferentially arranged on the clutch body, a first spring and a steel ball are sequentially arranged in the mounting hole from inside to outside, through holes corresponding to the positions and the number of the mounting holes in a one-to-one manner are formed in the needle distance adjusting crank, one end of the first spring is arranged at the inner end of the mounting hole in a propping manner, the other end of the first spring is arranged on the steel ball in a propping manner, and the outer end of the steel ball is embedded in the through holes to realize the combination of the needle distance adjusting crank and the clutch body.
In the sewing machine backward and forward sewing stitch length adjusting and presser foot lifting device, a stitch length adjusting crank mounting shaft is arranged at the front end of the clutch body, and the stitch length adjusting crank is sleeved on the stitch length adjusting crank mounting shaft and is axially limited by the clamp spring and the clutch body.
In the device for adjusting the distance between the backward and forward sewing needles and lifting the presser foot of the sewing machine, the cam part is arranged on the rotating shaft and is positioned at the rear end of the clutch body, the cam part and the clutch body are of an integral structure or a split structure connected through a fastener, threaded holes corresponding to the positions and the number of the mounting holes one by one are formed in the cam part, screws are screwed in the threaded holes, a gasket is further arranged in the mounting holes, one end of the first spring is arranged on the gasket in a propping mode, the other end of the first spring is arranged on the steel ball in a propping mode, and the compression degree of the first spring is adjusted by adjusting the length of the screw screwed in the threaded holes.
In the sewing machine backward and forward sewing stitch length adjusting and presser foot lifting device, the stitch length adjusting crank is connected with the backward feeding connecting rod through a pin shaft, the pin shaft is fixedly connected with the stitch length adjusting crank through a screw, and the pin shaft extends out of the stitch length adjusting crank and is positioned below the clutch driving assembly.
In the device for adjusting the distance between the backward and forward sewing needles and lifting the presser foot of the sewing machine, the clutch driving assembly comprises a limiting pin sleeve and a limiting pin which are arranged at corresponding positions on the machine shell, the limiting pin is elastically installed in the limiting pin sleeve through a second spring, one end of the limiting pin extends out of the limiting pin sleeve, a guide hole is formed in the limiting pin sleeve along the axial direction of the limiting pin sleeve, an elastic pin is arranged on the limiting pin, and the elastic pin is arranged in the guide hole.
In the above-mentioned sewing machine is down and up to stitch the stitch distance to adjust and lift presser foot device, be provided with the breach on the one end that the spacer pin stretches out outside the spacing pin bushing.
In the above device for adjusting the back and forth sewing stitch length and lifting the presser foot of the sewing machine, the presser foot lifting driving assembly comprises a presser foot lifting crankshaft arranged on the machine shell, a presser foot lifting crank is rotatably arranged on the presser foot lifting crankshaft, a roller is arranged at one end of the presser foot lifting crank, the roller is positioned above the cam part, and the other end of the presser foot lifting crank is connected with the presser foot lifting mechanism.
In the above device for adjusting the back and forth stitch length and lifting the presser foot of the sewing machine, the presser foot lifting mechanism comprises a presser foot lifting pull rod, one end of the presser foot lifting pull rod is connected with a presser foot lifting crank, and the other end of the presser foot lifting pull rod is connected with a lifting lever;
or the presser foot lifting mechanism comprises a presser foot lifting pull rod, the presser foot lifting pull rod is connected with one end of a knee-controlled lifting lever, one end of the knee-controlled lifting lever is further connected with the lifting lever through the knee-controlled lifting pull rod, the knee-controlled lifting lever is rotatably installed on the machine shell, and the other end of the knee-controlled lifting lever is connected with the ejector rod.
In the above device for adjusting the reverse and forward sewing stitch length and lifting the presser foot of the sewing machine, the presser foot lifting pull rod comprises a first pull rod and a second pull rod, and the first pull rod and the second pull rod are connected through a connecting nut.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses realize respectively by a driving motor that the down and up stitch gauge is adjusted and lift the action of presser foot, mutually noninterfere when carrying out two actions, compact structure, effective reduction in production cost.
Description of the drawings:
fig. 1 is one of the schematic perspective views of the present invention;
fig. 2 is a second perspective view of the present invention;
fig. 3 is one of the schematic views of the clutch body and the cam portion of the present invention in an integrated structure;
fig. 4 is a second schematic view of the clutch body and the cam portion of the present invention in an integral structure;
fig. 5 is a schematic view of a presser foot lifting crank of the present invention;
fig. 6 is an exploded view of the clutch drive assembly of the present invention;
fig. 7 is a schematic view of the pitch adjusting crank of the present invention.
In the figure: 1. a drive motor; 2. a swing seat; 3. a rotating shaft; 4. a cam portion; 5. a needle pitch adjusting crank; 6. A material reversing connecting rod; 7. a clutch body; 8. mounting holes; 9. a through hole; 10. a needle pitch adjusting crank mounting shaft; 11. a clamp spring; 12. an idle stroke section; 13. a presser foot lifting drive section; 14. a threaded hole; 15. a limit pin sleeve; 16. a spacing pin; 17. a second spring; 18. a guide hole; 19. an elastic pin; 20. a notch; 21. A crank shaft for lifting a presser foot; 22. lifting a presser foot crank; 23. a roller; 24. a lifting lever; 25. a knee-controlled lifting lever; 26. knee-controlled lifting rods; 27. a first pull rod; 28. a second pull rod; 29. a connecting nut; 30. and (7) a pin shaft.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 7:
the utility model provides a sewing machine is down and is sewed up stitch length regulation and lift presser foot device, includes driving motor 1, swing seat 2, driving motor 1 is step motor or servo motor, and step motor is preferred to this embodiment. The driving motor 1 is installed on the casing. Be provided with clutch cam subassembly on driving motor 1's pivot 3, clutch cam subassembly includes clutch portion and cam portion 4, clutch portion and needle gage regulation crank 5 separation and reunion connection, be provided with the separation and reunion drive assembly that drives needle gage regulation crank 5 and clutch portion and declutch in one side of needle gage regulation crank 5, needle gage regulation crank 5 is connected with swing seat 2 through the material connecting rod 6 of falling the material, swing seat 2 swings and sets up in the casing. The cam part 4 comprises an idle stroke section 12 and a presser foot lifting driving section 13, and a presser foot lifting driving component for driving the presser foot lifting mechanism to act is arranged on one side of the cam part 4;
when the backward and forward sewing needle pitch adjustment is to be carried out, the needle pitch adjusting crank 5 is combined with the clutch part and synchronously rotates with the clutch cam component to drive the swinging seat 2 to swing, the rotating shaft 3 of the driving motor 1 rotates clockwise or anticlockwise to drive the swinging seat 2 to swing up and down to realize the backward and forward sewing needle pitch adjustment, at the moment, the presser foot lifting driving component corresponds to the idle stroke section 12 of the cam part 4, the presser foot lifting driving component does not act, and the presser foot lifting mechanism does not act;
when the presser foot lifting is to be executed, the cam part 4 rotates to the presser foot lifting driving section 13 to act on the presser foot lifting driving component to drive the presser foot lifting mechanism to lift the presser foot, at the moment, the clutch driving component drives the needle pitch adjusting crank 5 to be separated from the clutch part, the needle pitch adjusting crank 5 does not rotate along with the clutch part, and the swinging seat 2 does not act.
According to the above, the utility model discloses a driving motor 1 realizes lifting the regulation of presser foot and the direction of falling seam gauge needle respectively, mutually noninterfere, compact structure, effective reduction in production cost.
As shown in fig. 1-4 and 5, the clutch portion includes a clutch body 7 mounted on the rotating shaft 3, the clutch body 7 is circumferentially provided with more than one mounting hole 8 arranged along the axial direction, and the number of the mounting holes 8 in this embodiment is two. The first spring and the steel ball are sequentially arranged in the mounting hole 8 from inside to outside, through holes 9 corresponding to the positions and the number of the mounting hole 8 one by one are formed in the needle pitch adjusting crank 5, one end of the first spring is arranged at the inner end of the mounting hole 8 in a propping mode, the other end of the first spring is arranged on the steel ball in a propping mode, and the outer end of the steel ball is embedded in the through holes 9 to achieve combination of the needle pitch adjusting crank 5 and the clutch body 7.
In order to realize the installation of the needle pitch adjusting crank 5, the front end of the clutch body 7 is provided with a needle pitch adjusting crank mounting shaft 10, the needle pitch adjusting crank 5 is sleeved on the needle pitch adjusting crank mounting shaft 10, and the needle pitch adjusting crank is axially limited by the clamp spring 11 and the clutch body 7. In order to make the needle pitch adjusting crank 5 rotate flexibly on the needle pitch adjusting crank mounting shaft 10, a bearing is arranged between the needle pitch adjusting crank 5 and the needle pitch adjusting crank mounting shaft 10.
As shown in fig. 1-4, the cam portion 4 is mounted on the rotating shaft 3, and the cam portion 4 is located at the rear end of the clutch body 7, and the cam portion 4 and the clutch body 7 are of an integral structure or a split structure connected by a fastener, and this embodiment is preferably of an integral structure. The cam part 4 is provided with threaded holes 14 corresponding to the positions and the number of the mounting holes 8 one by one, screws are screwed in the threaded holes 14, gaskets are further arranged in the mounting holes 8, one end of the first spring is propped against the gaskets, the other end of the first spring is propped against the steel balls, the length of the screw in the threaded holes 14 is adjusted to adjust the compression degree of the first spring, and then the connection strength between the needle pitch adjusting crank 5 and the clutch body 7 is adjusted.
As shown in fig. 1 and 2, the utility model discloses be provided with the separation and reunion drive assembly of drive gauge needle adjusting crank 5 and clutch portion separation in one side of gauge needle adjusting crank 5, gauge needle adjusting crank 5 is blockked by separation and reunion drive assembly and is continued to rotate and realize gauge needle adjusting crank 5 and clutch portion separation.
Specifically, the upper end of the material reversing and feeding connecting rod 6 is connected with the needle pitch adjusting crank 5 through a pin shaft 30, the pin shaft 30 is fixedly connected with the needle pitch adjusting crank 5 through a screw, and the pin shaft 30 extends out of the needle pitch adjusting crank 5 and is located below the clutch driving assembly. When the pin shaft 30 rotates together with the needle pitch adjusting crank 5 to be in contact with the clutch driving assembly, the clutch driving assembly stops the continuous rotation of the pin shaft, when the torque exceeds a certain value, the steel balls are separated from the through holes 9 on the needle pitch adjusting crank 5, the separation of the needle pitch adjusting crank 5 and the clutch part is realized, the clutch part continuously rotates along with the rotating shaft 3 of the driving motor 1, and the needle pitch adjusting crank 5 does not act.
When the clutch part is combined, the clutch part continues to rotate until the steel balls correspond to the through holes 9 on the needle pitch adjusting crank 5, the outer ends of the steel balls are embedded into the through holes 9 on the needle pitch adjusting crank 5 again, and the clutch part is combined with the needle pitch adjusting crank 5 again.
As shown in fig. 1, 2 and 6, the clutch driving assembly includes a limit pin sleeve 15 and a limit pin 16, which are disposed at corresponding positions on the housing, the limit pin 16 is installed in the limit pin sleeve 15 through a second spring 17, one end of the limit pin 16 extends out of the limit pin sleeve 15, a guide hole 18 is disposed on the limit pin sleeve 15 along an axial direction thereof, an elastic pin 19 is disposed on the limit pin 16, and the elastic pin 19 is disposed in the guide hole 18. The end of the limit pin 16 extending out of the limit pin sleeve 15 is provided with a notch 20.
As shown in fig. 1 and 2, the presser foot lifting driving assembly includes a presser foot lifting crank shaft 21 mounted on the housing, a presser foot lifting crank 22 is rotatably provided on the presser foot lifting crank shaft 21, a roller 23 is mounted on one end of the presser foot lifting crank 22, the roller 23 is located above the cam portion 4, and the other end of the presser foot lifting crank 22 is connected to a presser foot lifting mechanism. When the idle stroke section 12 of the cam part 4 rotates to a position below the roller 23, the presser foot lifting crank 22 does not rotate around the presser foot lifting crank shaft 21, and the presser foot lifting operation is not performed at this time. When the presser foot lifting driving section 13 of the cam part 4 rotates to the lower part of the roller 23, the roller 23 rolls along the presser foot lifting driving section 13, drives the presser foot lifting crank 22 to swing around the presser foot lifting crank shaft 21, and drives the presser foot lifting mechanism to act to lift the presser foot.
Lift presser foot mechanism including lifting the presser foot pull rod, lift the one end of presser foot pull rod and lift presser foot crank 22 and be connected, lift the other end of presser foot pull rod and be connected with lifting lever 24.
In order to retain the function of knee control pressure foot lifting, the pressure foot lifting mechanism can also be: the lifting device comprises a lifting presser foot pull rod, wherein the lifting presser foot pull rod is connected with one end of a knee control lifting lever 25, one end of the knee control lifting lever 25 is further connected with a lifting lever 24 through a knee control lifting pull rod 26, the knee control lifting lever 25 is rotatably installed on a machine shell, and the other end of the knee control lifting lever 25 is connected with an ejector rod.
The lifting and pressing foot pull rod comprises a first pull rod 27 and a second pull rod 28, and the first pull rod 27 and the second pull rod 28 are connected through a connecting nut 29.
The utility model discloses a theory of operation:
when the driving motor 1 rotates along the clockwise direction, the needle pitch adjusting crank 5 fixed on the clutch cam component is driven to swing up and down, so that the backward feeding connecting rod 6 swings up and down, and the swinging seat 2 is driven to swing up and down, thereby realizing the adjustment of the backward (clockwise) sewing needle pitch. When the driving motor 1 rotates clockwise beyond a certain angle, the stitch length adjusting crank 5 is blocked by the limiting pin 16, when the driving motor 1 continues to rotate clockwise, when the torque exceeds a certain value, the clutch cam assembly and the stitch length adjusting crank 5 are disengaged, the clutch cam assembly continues to rotate clockwise, the presser foot lifting driving section 13 of the cam part 4 hits the roller 23 to enable the presser foot lifting crank 22 to rotate, the presser foot lifting pull rod and the knee control lifting pull rod 26 are driven to move backwards, and therefore the function of presser foot lifting is achieved.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a sewing machine is back and forth stitch gauge adjustment and is lifted presser foot device, includes driving motor (1), swing seat (2), its characterized in that: a clutch cam assembly is arranged on a rotating shaft (3) of a driving motor (1), the clutch cam assembly comprises a clutch part and a cam part (4), the clutch part is in clutch connection with a needle pitch adjusting crank (5), a clutch driving assembly for driving the needle pitch adjusting crank (5) to be disengaged from the clutch part is arranged on one side of the needle pitch adjusting crank (5), the needle pitch adjusting crank (5) is connected with a swing seat (2) through a reverse feeding connecting rod (6), the cam part (4) comprises an idle stroke section (12) and a presser foot lifting driving section (13), and a presser foot lifting driving assembly for driving a presser foot lifting mechanism to act is arranged on one side of the cam part (4);
when the needle pitch of the backward and forward sewing is adjusted, the needle pitch adjusting crank (5) is combined with the clutch part and synchronously rotates with the cam component of the clutch to drive the swinging seat (2) to swing, at the moment, the presser foot lifting driving component corresponds to the idle stroke section (12) of the cam part (4), and the presser foot lifting driving component does not act;
when the presser foot is lifted, the cam part (4) rotates to the presser foot lifting driving section (13) to act on the presser foot lifting driving component to drive the presser foot lifting mechanism to lift the presser foot, at the moment, the clutch driving component drives the needle distance adjusting crank (5) to be separated from the clutch part, the needle distance adjusting crank (5) does not rotate, and the swinging seat (2) does not act.
2. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 1, characterized in that: clutch portion is including installing clutch body (7) on pivot (3), circumference is provided with more than one along axial setting mounting hole (8) on clutch body (7), has set gradually first spring and steel ball from inside to outside in mounting hole (8), be provided with on gauge needle adjusting crank (5) with mounting hole (8) position, quantity one-to-one through-hole (9), the one end top of first spring is established at the inner of mounting hole (8), the other end top is established on the steel ball, makes the outer tip of steel ball inlays and establishes the combination of realizing gauge needle adjusting crank (5) and clutch body (7) in through-hole (9).
3. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 2, characterized in that: the front end of clutch body (7) is provided with gauge needle and adjusts crank installation axle (10), gauge needle adjusting crank (5) suit is on gauge needle adjusting crank installation axle (10) to carry out axial spacing through jump ring (11) and clutch body (7) to it.
4. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 2 or 3, characterized in that: the cam portion (4) is installed on the rotating shaft (3), the cam portion (4) is located at the rear end of the clutch body (7), the cam portion (4) and the clutch body (7) are of an integrated structure or a split structure connected through a fastener, threaded holes (14) corresponding to the positions and the number of the mounting holes (8) in a one-to-one mode are formed in the cam portion (4), screws are connected in the threaded holes (14) in a threaded mode, a gasket is further arranged in the mounting holes (8), one end of the first spring is arranged on the gasket in a propping mode, the other end of the first spring is arranged on the steel ball in a propping mode, and the compression degree of the first spring is adjusted through the length of the adjusting screws in the threaded holes (14).
5. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 1, characterized in that: the needle pitch adjusting crank (5) is connected with the material reversing and feeding connecting rod (6) through a pin shaft (30), the pin shaft (30) is fixedly connected with the needle pitch adjusting crank (5) through a screw, and the pin shaft (30) extends out of the needle pitch adjusting crank (5) and is located below the clutch driving assembly.
6. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 5, characterized in that: clutch drive assembly is including setting up spacing cotter (15) and spacer pin (16) of corresponding position on the casing, and spacer pin (16) are through second spring (17) elastic mounting in spacing cotter (15), and the one end of spacer pin (16) stretches out outside spacing cotter (15), is provided with guiding hole (18) along its axial on spacing cotter (15), is provided with elastic pin (19) on spacer pin (16), elastic pin (19) set up in guiding hole (18).
7. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 6, characterized in that: a gap (20) is arranged at one end of the limit pin (16) extending out of the limit pin sleeve (15).
8. The sewing machine back and forth stitch pitch adjusting and presser foot lifting device according to claim 1, characterized in that: the presser foot lifting driving assembly comprises a presser foot lifting crankshaft (21) arranged on the machine shell, a presser foot lifting crank (22) is rotatably arranged on the presser foot lifting crankshaft (21), a roller (23) is arranged at one end of the presser foot lifting crank (22), the roller (23) is positioned above the cam part (4), and the other end of the presser foot lifting crank (22) is connected with a presser foot lifting mechanism.
9. The sewing machine reversible stitch length adjusting and presser foot lifting device according to claim 8, characterized in that: the presser foot lifting mechanism comprises a presser foot lifting pull rod, one end of the presser foot lifting pull rod is connected with a presser foot lifting crank, and the other end of the presser foot lifting pull rod is connected with a lifting lever (24);
or the presser foot lifting mechanism comprises a presser foot lifting pull rod, the presser foot lifting pull rod is connected with one end of a knee control lifting lever (25), one end of the knee control lifting lever (25) is further connected with a lifting lever (24) through the knee control lifting pull rod (26), the knee control lifting lever (25) is rotatably installed on the machine shell, and the other end of the knee control lifting lever (25) is connected with the ejector rod.
10. The sewing machine reversible stitch length adjusting and presser foot lifting device according to claim 9, characterized in that: the pressure foot lifting pull rod comprises a first pull rod (27) and a second pull rod (28), and the first pull rod (27) and the second pull rod (28) are connected through a connecting nut (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120269399.9U CN214655623U (en) | 2021-01-29 | 2021-01-29 | Sewing machine is down in same direction as seam stitch length and is adjusted and lift presser foot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120269399.9U CN214655623U (en) | 2021-01-29 | 2021-01-29 | Sewing machine is down in same direction as seam stitch length and is adjusted and lift presser foot device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214655623U true CN214655623U (en) | 2021-11-09 |
Family
ID=78520729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120269399.9U Active CN214655623U (en) | 2021-01-29 | 2021-01-29 | Sewing machine is down in same direction as seam stitch length and is adjusted and lift presser foot device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214655623U (en) |
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2021
- 2021-01-29 CN CN202120269399.9U patent/CN214655623U/en active Active
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