CN210712045U - Thread trimming and presser foot lifting mechanism and sewing machine with same - Google Patents
Thread trimming and presser foot lifting mechanism and sewing machine with same Download PDFInfo
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- CN210712045U CN210712045U CN201921240814.7U CN201921240814U CN210712045U CN 210712045 U CN210712045 U CN 210712045U CN 201921240814 U CN201921240814 U CN 201921240814U CN 210712045 U CN210712045 U CN 210712045U
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Abstract
The utility model provides a thread cutting and presser foot lifting mechanism and a sewing machine with the same, wherein the thread cutting and presser foot lifting mechanism comprises a driving device, and the driving device is provided with a first driving shaft and a second driving shaft; at least part of the presser foot lifting assembly is connected with the first driving shaft so as to drive the presser foot lifting assembly to perform a presser foot lifting action through the first driving shaft; at least part of the wire cutting assembly is connected with the second driving shaft; the pressure lifting and foot assembly is provided with a pushing piece and a lifting part, and a first driving shaft is connected with the pushing piece so as to drive the pushing piece to rotate around a first preset axis; at least part of the pushing piece is opposite to the lifting part so as to enable the pushing piece to be abutted against the lifting part in the swinging process of the pushing piece and push the lifting part to swing around a second preset axis; at least part of the lifting component is connected with the lifting and pressing top rod, so that the lifting component drives the lifting and pressing top rod to perform lifting motion in the swinging process of the lifting component, and the problem that the sewing machine in the prior art is complex to install is solved.
Description
Technical Field
The utility model relates to a sewing machine field particularly, relates to a trimming lifts presser foot mechanism and has its sewing machine.
Background
At present, in the existing sewing machine, a thread cutting mechanism is required to realize thread cutting action, and meanwhile, a presser foot lifting mechanism is required to realize presser foot lifting action.
However, in most sewing machines, the thread cutting mechanism is a set of driving assembly, the presser foot lifting mechanism is a set of driving assembly, the cost is high, the occupied space is large, the installation is complex, and the installation time is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a trimming lifts presser foot mechanism and has its sewing machine to solve the complicated problem of sewing machine installation among the prior art.
In order to achieve the above object, according to the utility model discloses an aspect provides a presser foot mechanism is lifted to trimming for realize the trimming action or lift the presser foot action, the trimming is lifted presser foot mechanism and is included: a drive device having a first drive shaft and a second drive shaft; the pressure foot lifting assembly is connected with the first driving shaft at least in part so as to drive the pressure foot lifting assembly to perform pressure foot lifting action through the first driving shaft; at least part of the thread cutting assembly is connected with the second driving shaft so as to drive the thread cutting assembly to perform thread cutting action through the second driving shaft; the pressure lifting and foot assembly is provided with a pushing piece and a lifting part, and a first driving shaft is connected with the pushing piece so as to drive the pushing piece to rotate around a first preset axis; at least part of the pushing piece is opposite to the lifting part so as to enable the pushing piece to be abutted against the lifting part in the swinging process of the pushing piece and push the lifting part to swing around a second preset axis; at least part of the lifting component is connected with the pressure lifting and pressing top rod, so that the lifting component drives the pressure lifting and pressing top rod to perform lifting movement in the swinging process of the lifting component, and the pressure foot lifting action is performed.
Further, the pusher comprises: the first driving shaft is connected with the connecting rod body; the pushing part is connected with one end, far away from the first driving shaft, of the connecting rod body, the pushing part is provided with a pushing end face, and at least part of the pushing end face is opposite to the lifting component.
Further, the pushing end face is an arc-shaped face.
Further, lift presser foot subassembly still includes: the first driving shaft is connected with the first end of the first connecting crank so as to drive the first connecting crank to swing around a first preset axis, and the pushing piece is arranged on the first connecting crank so as to drive the pushing piece to swing through the first connecting crank.
Further, the lifting member further includes: and the pushing part is opposite to the plate body of the lifting pressure plate so as to enable the pushing part to be abutted against the plate body of the lifting pressure plate in the swinging process of the pushing part to push the lifting pressure plate to swing, and the lifting pressure ejector rod is connected with the lifting pressure plate.
Further, the lifting member further includes: the lifting pressure plate is arranged at the first end of the rotating shaft so as to drive the rotating shaft to rotate around a second preset axis through the lifting pressure plate; and the lifting crank is arranged at the second end of the rotating shaft so as to drive the lifting crank to swing around a second preset axis through the rotating shaft, and the second preset axis and the axis of the rotating shaft are positioned on the same straight line.
Further, the thread trimming assembly comprises: the second driving shaft is connected with the driving crank so as to drive the driving crank to rotate around a third preset axis; the cutter component is provided with a fixed cutter component and a movable cutter component, the movable cutter component is connected with one end of the driving crank, which is far away from the second driving shaft, so that the movable cutter component is driven by the driving crank to move towards the direction close to the fixed cutter component until the movable cutter component is contacted with the fixed cutter component, and the thread trimming action is carried out.
Further, the thread trimming assembly further comprises: the adjusting plate is connected with the second driving shaft at least in part so as to enable the adjusting plate to rotate along a third preset axis, and a limiting part is arranged on the adjusting plate so as to limit the rotating stroke of the adjusting plate through the limiting part; the first end and the regulating plate of connecting rod are connected, and the second end and the stationary knife part of connecting rod are connected to drive the connecting rod through rotating the regulating plate and remove, with the line of cut position of adjusting stationary knife part.
Furthermore, the limiting part comprises a limiting hole, a stop pin is arranged on a crank rod of the driving crank, and at least part of the stop pin is inserted into the limiting hole so as to stop the limiting hole and the hole wall of the limiting hole through the stop pin when the adjusting plate rotates, so that the rotation stroke of the adjusting plate is limited.
Further, the thread trimming assembly further comprises: the second connecting crank is connected with the second driving shaft so as to drive the second connecting crank to rotate around a fourth preset axis; and the third connecting crank is connected with the second connecting crank so as to drive the third connecting crank to rotate around a third preset axis, the third connecting crank is connected with the driving crank through the connecting shaft so as to drive the driving crank to rotate by the third connecting crank, and the third preset axis is superposed with the axis of the connecting shaft.
According to the utility model discloses an on the other hand provides a sewing machine, lift presser foot mechanism including the trimming, the trimming lifts presser foot mechanism and lifts presser foot mechanism for foretell trimming.
Use the technical scheme of the utility model, the trimming is lifted presser foot mechanism and is used for realizing the trimming action or lifting the presser foot action, and the trimming is lifted presser foot mechanism and is included: the driving device is provided with a first driving shaft and a second driving shaft, at least part of the presser foot lifting assembly is connected with the first driving shaft so as to drive the presser foot lifting assembly to perform presser foot lifting action through the first driving shaft, and at least part of the thread cutting assembly is connected with the second driving shaft so as to drive the thread cutting assembly to perform thread cutting action through the second driving shaft; the pressure lifting and foot assembly is provided with a pushing piece and a lifting part, and a first driving shaft is connected with the pushing piece so as to drive the pushing piece to rotate around a first preset axis; at least part of the pushing piece is opposite to the lifting part so as to enable the pushing piece to be abutted against the lifting part in the swinging process of the pushing piece and push the lifting part to swing around a second preset axis; at least part of the lifting component is connected with the pressure lifting and pressing top rod, so that the lifting component drives the pressure lifting and pressing top rod to perform lifting movement in the swinging process of the lifting component, and the pressure foot lifting action is performed. The utility model provides a presser foot mechanism is lifted to trimming's simple structure through setting up two drive shafts with drive arrangement, and usable drive arrangement drives respectively and lifts the presser foot action and the trimming action, has reduced installation space, has solved the complicated problem of sewing machine installation among the prior art.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a thread trimming and presser foot lifting mechanism according to the present invention;
fig. 2 shows an enlarged view of part a of the trimming presser foot lifting mechanism according to fig. 1;
fig. 3 shows a schematic structural view of a view angle of the thread trimming and presser foot lifting mechanism according to the present invention; and
fig. 4 shows a schematic structural view of an embodiment of a thread trimming assembly according to the present invention.
Wherein the figures include the following reference numerals:
10. a drive device; 11. a first drive shaft; 12. a second drive shaft;
20. lifting the presser foot assembly; 21. a pusher member; 210. connecting the rod body; 211. a pushing part; 22. a lifting member; 23. lifting and pressing the ejector rod; 24. a first connecting crank; 25. lifting the pressing plate; 26. a rotating shaft; 27. lifting the crank;
30. a thread trimming assembly; 31. a drive crank; 32. a cutter assembly; 320. a stationary blade member; 321. a moving blade part; 322. a transmission rod; 33. an adjusting plate; 330. a limiting part; 34. a connecting rod; 310. a stop pin; 36. a second connecting crank; 37. a third connecting crank; 38. a connecting shaft; 39. a return spring.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a presser foot mechanism is lifted to trimming please refer to fig. 1 to fig. 4 for realize the trimming action or lift the presser foot action, the trimming lifts presser foot mechanism and includes: a drive device 10, the drive device 10 having a first drive shaft 11 and a second drive shaft 12; a presser foot lifting assembly 20, at least part of the presser foot lifting assembly 20 is connected with the first driving shaft 11, so that the presser foot lifting assembly 20 is driven by the first driving shaft 11 to perform a presser foot lifting action; the thread cutting assembly 30, at least part of the thread cutting assembly 30 is connected with the second driving shaft 12, so that the thread cutting assembly 30 is driven by the second driving shaft 12 to perform thread cutting action; the lifting and pressing foot assembly 20 is provided with a pushing piece 21 and a lifting part 22, and the first driving shaft 11 is connected with the pushing piece 21 so as to drive the pushing piece 21 to rotate around a first preset axis; at least part of the pusher 21 is opposite to the lifting element 22, so that during the oscillation of the pusher 21, the pusher 21 is in abutment with the lifting element 22, so as to push the lifting element 22 to oscillate about a second predetermined axis; at least part of the lifting component 22 is connected with the lifting and pressing ejector rod 23, so that the lifting component 22 drives the lifting and pressing ejector rod 23 to perform lifting and lowering movement during the swinging process of the lifting component 22, and the pressure foot lifting action is performed.
According to the utility model provides a presser foot mechanism is lifted to trimming for realize the trimming action or lift the presser foot action, the trimming is lifted presser foot mechanism and is included: the device comprises a driving device 10, a lifting and pressing foot assembly 20 and a trimming assembly 30, wherein the driving device 10 is provided with a first driving shaft 11 and a second driving shaft 12, at least part of the lifting and pressing foot assembly 20 is connected with the first driving shaft 11 so as to drive the lifting and pressing foot assembly 20 to perform a pressing foot lifting action through the first driving shaft 11, and at least part of the trimming assembly 30 is connected with the second driving shaft 12 so as to drive the trimming assembly 30 to perform a trimming action through the second driving shaft 12; the lifting and pressing foot assembly 20 is provided with a pushing piece 21 and a lifting part 22, and the first driving shaft 11 is connected with the pushing piece 21 so as to drive the pushing piece 21 to rotate around a first preset axis; at least part of the pusher 21 is opposite to the lifting element 22, so that during the oscillation of the pusher 21, the pusher 21 is in abutment with the lifting element 22, so as to push the lifting element 22 to oscillate about a second predetermined axis; at least part of the lifting component 22 is connected with the lifting and pressing ejector rod 23, so that the lifting component 22 drives the lifting and pressing ejector rod 23 to perform lifting and lowering movement during the swinging process of the lifting component 22, and the pressure foot lifting action is performed. The utility model provides a presser foot mechanism is lifted to trimming's simple structure through setting up two drive shafts with drive arrangement 10, and presser foot action and trimming action are lifted in the drive respectively of usable drive arrangement 10, have reduced installation space, have solved the complicated problem of sewing machine installation among the prior art.
As shown in fig. 1 and 2, the pusher 21 includes: the connecting rod body 210 is connected with the first driving shaft 11; the pushing portion 211 is connected to an end of the connecting rod body 210 away from the first driving shaft 11, the pushing portion 211 has a pushing end surface, and at least a portion of the pushing end surface is opposite to the lifting member 22. In a specific using process, as the pushing piece 21 swings around the first preset axis, when the pushing part 211 of the pushing piece 21 abuts against the lifting component 22 in the swinging process, the lifting component 22 is pushed to swing, so that the lifting component 22 is in the lifting position, and then the pushing piece 21 continues swinging, so that the pushing part 211 is separated from the lifting component 22, and the lifting component 22 returns to the initial position.
Preferably, the pushing end face is an arc-shaped face. Due to the arrangement, the pushing part 211 can be contacted with the lifting component 22 through the arc-shaped surface in the swinging process, the abrasion between the pushing part 211 and the lifting component 22 can be reduced, and the pushing part 211 and the lifting component 22 are prevented from being mutually stopped, so that the normal presser foot lifting action of the sewing machine is influenced.
In the implementation process, in order to facilitate the swinging of the pushing member 21, the presser foot lifting assembly 20 further includes: the first connecting crank 24, the first driving shaft 11 and the first end of the first connecting crank 24 are connected to drive the first connecting crank 24 to swing around the first predetermined axis, and the pushing member 21 is mounted on the first connecting crank 24 to drive the pushing member 21 to swing through the first connecting crank 24.
As shown in fig. 3, the lifting member 22 further includes: and the pressing plate 25 is lifted, the pushing part 21 is provided with a pushing part, the pushing part is opposite to the plate body of the pressing plate 25, so that the pushing part is abutted against the plate body of the pressing plate 25 in the swinging process of the pushing part 21 to push the pressing plate 25 to swing, and the pressing lifting ejector rod 23 is connected with the pressing plate 25.
Specifically, the lifting member 22 further includes: a rotating shaft 26, wherein the pressure raising plate 25 is installed at a first end of the rotating shaft 26, so that the rotating shaft 26 is driven to rotate around a second preset axis by the pressure raising plate 25; and the lifting crank 27 is arranged at the second end of the rotating shaft 26, so that the lifting crank 27 is driven by the rotating shaft 26 to swing around a second preset axis which is on the same straight line with the axis of the rotating shaft 26. The arrangement enables the pressure lifting plate 25 to drive the lifting crank 27 to swing through the rotating shaft 26, the structure is simple, implementation is convenient, the swinging action of the lifting crank 27 can be buffered through the arrangement of the pressure lifting plate 25 and the rotating shaft 26, and further, the pressure lifting action is more stable.
In the embodiment provided by the present invention, as shown in fig. 3 and 4, the thread trimming assembly 30 includes: the driving crank 31, the second driving shaft 12 is connected with the driving crank 31 to drive the driving crank 31 to rotate around a third preset axis; the cutter assembly 32, the cutter assembly 32 has a stationary cutter part 320 and a movable cutter part 321, the movable cutter part 321 is connected with one end of the driving crank 31 far away from the second driving shaft 12, so that the driving crank 31 drives the movable cutter part 321 to move towards the direction close to the stationary cutter part 320 until contacting with the stationary cutter part 320, so as to perform a thread cutting action. Wherein the driving crank 31 is connected to the movable blade part 321 through a transmission rod 322, the transmission rod 322 is preferably an arc-shaped rod to drive the movable blade part 321 to move toward the fixed blade part 320 when the driving crank 31 rotates. The body of the driving crank 31 is further provided with a return spring 39, one end of the return spring 39 is connected to the handle body of the driving crank 31, and the other end of the return spring 39 is connected to the machine body, so that the driving crank 31 is pulled by the elastic restoring force of the return spring 39, and the driving crank 31 drives the movable knife part 321 to move towards the direction away from the fixed knife part 320.
In order to facilitate adjustment of the trimming position of the trimming assembly 30, the trimming assembly 30 further includes: an adjusting plate 33, at least a portion of the adjusting plate 33 being connected to the second driving shaft 12 to rotate the adjusting plate 33 about a third predetermined axis, the adjusting plate 33 being provided with a limiting portion 330 to limit a rotational stroke of the adjusting plate 33 by the limiting portion 330; and a connecting rod 34, wherein a first end of the connecting rod 34 is connected with the adjusting plate 33, and a second end of the connecting rod 34 is connected with the fixed cutter part 320, so that the connecting rod 34 is driven to move by rotating the adjusting plate 33, and the shearing line position of the fixed cutter part 320 is adjusted.
Specifically, the limit portion 330 includes a limit hole, a stop pin 310 is provided on the crank rod of the driving crank 31, and at least a portion of the stop pin 310 is inserted into the limit hole to stop with the hole wall of the limit hole by the stop pin 310 when the adjustment plate 33 rotates, so as to limit the rotation stroke of the adjustment plate 33.
In the embodiment provided by the present invention, the thread trimming assembly 30 further comprises: a second connecting crank 36, to which the second driving shaft 12 is connected, for driving the second connecting crank 36 to rotate around a fourth predetermined axis; and the third connecting crank 37, the third connecting crank 37 is connected with the second connecting crank 36 to drive the third connecting crank 37 to rotate around a third preset axis, the third connecting crank 37 is connected with the driving crank 31 through the connecting shaft 38, so that the third connecting crank 37 drives the driving crank 31 to rotate, and the third preset axis is coincident with the axis of the connecting shaft 38. In the embodiment, the driving crank 31 and the adjusting plate 33 are both connected to the connecting shaft 38.
The utility model also provides a sewing machine, lift presser foot mechanism including the trimming, the trimming lifts presser foot mechanism and lifts presser foot mechanism for the trimming of above-mentioned embodiment.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
according to the utility model provides a presser foot mechanism is lifted to trimming for realize the trimming action or lift the presser foot action, the trimming is lifted presser foot mechanism and is included: the device comprises a driving device 10, a lifting and pressing foot assembly 20 and a trimming assembly 30, wherein the driving device 10 is provided with a first driving shaft 11 and a second driving shaft 12, at least part of the lifting and pressing foot assembly 20 is connected with the first driving shaft 11 so as to drive the lifting and pressing foot assembly 20 to perform a pressing foot lifting action through the first driving shaft 11, and at least part of the trimming assembly 30 is connected with the second driving shaft 12 so as to drive the trimming assembly 30 to perform a trimming action through the second driving shaft 12; the lifting and pressing foot assembly 20 is provided with a pushing piece 21 and a lifting part 22, and the first driving shaft 11 is connected with the pushing piece 21 so as to drive the pushing piece 21 to rotate around a first preset axis; at least part of the pusher 21 is opposite to the lifting element 22, so that during the oscillation of the pusher 21, the pusher 21 is in abutment with the lifting element 22, so as to push the lifting element 22 to oscillate about a second predetermined axis; at least part of the lifting component 22 is connected with the lifting and pressing ejector rod 23, so that the lifting component 22 drives the lifting and pressing ejector rod 23 to perform lifting and lowering movement during the swinging process of the lifting component 22, and the pressure foot lifting action is performed. The utility model provides a presser foot mechanism is lifted to trimming's simple structure through setting up two drive shafts with drive arrangement 10, and presser foot action and trimming action are lifted in the drive respectively of usable drive arrangement 10, have reduced installation space, have solved the complicated problem of sewing machine installation among the prior art.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A thread trimming and presser foot lifting mechanism is used for realizing thread trimming action or presser foot lifting action and is characterized by comprising:
a drive device (10), the drive device (10) having a first drive shaft (11) and a second drive shaft (12);
a presser foot lifting assembly (20), wherein at least part of the presser foot lifting assembly (20) is connected with the first driving shaft (11) so as to drive the presser foot lifting assembly (20) to perform a presser foot lifting action through the first driving shaft (11);
a thread cutting assembly (30), at least part of the thread cutting assembly (30) is connected with the second driving shaft (12) so as to drive the thread cutting assembly (30) to perform thread cutting action through the second driving shaft (12);
the lifting and pressing foot assembly (20) is provided with a pushing piece (21) and a lifting component (22), and the first driving shaft (11) is connected with the pushing piece (21) to drive the pushing piece (21) to rotate around a first preset axis; at least part of the push member (21) is opposite to the lifting component (22) so as to enable the push member (21) to be abutted against the lifting component (22) during the swinging process of the push member (21) to push the lifting component (22) to swing around a second preset axis; at least part of the lifting component (22) is connected with a pressure lifting mandril (23), so that the lifting component (22) drives the pressure lifting mandril (23) to carry out lifting motion in the swinging process of the lifting component (22) to carry out pressure foot lifting motion.
2. The thread trimming presser foot lifting mechanism of claim 1, wherein the pusher (21) comprises:
a connecting rod body (210), wherein the first driving shaft (11) is connected with the connecting rod body (210);
the pushing part (211), the pushing part (211) with the connecting rod body (210) keep away from the one end of first drive shaft (11) is connected, pushing part (211) has the promotion terminal surface, promote at least part of terminal surface with lifting member (22) are relative.
3. The thread trimming presser foot lifting mechanism of claim 2, wherein the pushing end face is an arcuate face.
4. The trimming presser foot lifting mechanism according to claim 1, wherein the presser foot lifting assembly (20) further comprises:
a first connecting crank (24), the first driving shaft (11) being connected to a first end of the first connecting crank (24) to drive the first connecting crank (24) to oscillate about the first predetermined axis, the pushing member (21) being mounted on the first connecting crank (24) to drive the pushing member (21) to oscillate via the first connecting crank (24).
5. The thread trimming presser foot lifting mechanism of claim 4, wherein said lifting member (22) further comprises:
the pressing device comprises a pressing lifting plate (25), the pushing piece (21) is provided with a pushing part (211), the pushing part (211) is opposite to a plate body of the pressing lifting plate (25) so that the pushing part (211) is abutted to the plate body of the pressing lifting plate (25) in the swinging process of the pushing piece (21) to push the pressing lifting plate (25) to swing, and a pressing lifting ejector rod (23) is connected with the pressing lifting plate (25).
6. The thread trimming presser foot lifting mechanism of claim 5, wherein said lifting member (22) further comprises:
the rotating shaft (26), the lifting pressure plate (25) is arranged at the first end of the rotating shaft (26) so as to drive the rotating shaft (26) to rotate around a second preset axis through the lifting pressure plate (25);
the lifting crank (27) is installed at the second end of the rotating shaft (26), so that the rotating shaft (26) drives the lifting crank (27) to swing around the second preset axis, and the second preset axis and the axis of the rotating shaft (26) are located on the same straight line.
7. The thread trimming lift and presser foot mechanism according to any one of claims 1 to 6, wherein the thread trimming assembly (30) comprises:
a drive crank (31), the second drive shaft (12) being connected to the drive crank (31) for driving the drive crank (31) in rotation about a third predetermined axis;
the thread cutting device comprises a cutter component (32), wherein the cutter component (32) is provided with a fixed cutter component (320) and a movable cutter component (321), the movable cutter component (321) is connected with one end, far away from the second driving shaft (12), of the driving crank (31), so that the movable cutter component (321) is driven by the driving crank (31) to move towards the direction close to the fixed cutter component (320) until the movable cutter component is contacted with the fixed cutter component (320), and thread cutting is performed.
8. The thread trimming lift presser foot mechanism of claim 7, wherein the thread trimming assembly (30) further comprises:
an adjusting plate (33), at least a portion of the adjusting plate (33) being connected to the second driving shaft (12) to rotate the adjusting plate (33) about the third predetermined axis, the adjusting plate (33) being provided with a limiting portion (330) to limit a rotational stroke of the adjusting plate (33) by the limiting portion (330);
connecting rod (34), the first end of connecting rod (34) with regulating plate (33) are connected, the second end of connecting rod (34) with stationary knife part (320) are connected, with through rotating regulating plate (33) drive connecting rod (34) remove, with the regulation the trimming position of stationary knife part (320).
9. The trimming presser foot lifting mechanism according to claim 8, wherein the limiting portion (330) comprises a limiting hole, a stop pin (310) is provided on the crank rod of the driving crank (31), and at least a portion of the stop pin (310) is inserted into the limiting hole to be stopped by the stop pin (310) and a hole wall of the limiting hole when the adjusting plate (33) rotates, so as to limit the rotation stroke of the adjusting plate (33).
10. The thread trimming lift presser foot mechanism of claim 7, wherein the thread trimming assembly (30) further comprises:
a second connecting crank (36), the second driving shaft (12) is connected with the second connecting crank (36) to drive the second connecting crank (36) to rotate around a fourth preset axis;
the third connecting crank (37), the third connecting crank (37) with the second connecting crank (36) is connected, so as to drive the third connecting crank (37) to rotate around the third preset axis, the third connecting crank (37) is connected with the driving crank (31) through a connecting shaft (38), so that the third connecting crank (37) drives the driving crank (31) to rotate, and the third preset axis coincides with the axis of the connecting shaft (38).
11. A sewing machine comprising a thread trimming presser foot lifting mechanism, wherein the thread trimming presser foot lifting mechanism is the thread trimming presser foot lifting mechanism of any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921240814.7U CN210712045U (en) | 2019-08-01 | 2019-08-01 | Thread trimming and presser foot lifting mechanism and sewing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921240814.7U CN210712045U (en) | 2019-08-01 | 2019-08-01 | Thread trimming and presser foot lifting mechanism and sewing machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210712045U true CN210712045U (en) | 2020-06-09 |
Family
ID=70964537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921240814.7U Withdrawn - After Issue CN210712045U (en) | 2019-08-01 | 2019-08-01 | Thread trimming and presser foot lifting mechanism and sewing machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210712045U (en) |
-
2019
- 2019-08-01 CN CN201921240814.7U patent/CN210712045U/en not_active Withdrawn - After Issue
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