CN111748918A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN111748918A CN111748918A CN201910250823.2A CN201910250823A CN111748918A CN 111748918 A CN111748918 A CN 111748918A CN 201910250823 A CN201910250823 A CN 201910250823A CN 111748918 A CN111748918 A CN 111748918A
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- Prior art keywords
- presser foot
- shaft
- sewing machine
- eccentric
- piece
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/06—Work-feeding means with feed dogs having horizontal and vertical movements arranged above and below the workpieces
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a sewing machine, which is provided with a needle pitch adjusting mechanism capable of adjusting the sewing needle pitch of the sewing machine, wherein the needle pitch adjusting mechanism comprises: a presser foot driving component, on which a presser foot of the sewing machine is mounted, for driving the presser foot to move along a preset sewing track through the presser foot driving component; the feeding component is arranged on the feeding tooth of the sewing machine and drives the feeding tooth to move along a preset feeding direction through the feeding component; the swinging piece is connected with the presser foot driving part at one end and connected with the feeding part at the other end, so that the swinging piece swings around a preset axis to drive the presser foot and the feeding tooth to move relatively, and the swinging stroke of the swinging piece is adjusted to adjust the sewing needle distance of the sewing machine, and the problem of low working efficiency of the sewing machine in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of sewing machines, in particular to a sewing machine.
Background
When leather and thick materials are sewn, the phenomenon that the stitch length needs to be changed is often met when a certain section of sewing is carried out, or the stitch length needs to be changed after one fabric is replaced, and the stitch length is mostly changed through a mechanical structure in the prior art.
However, when the fabric is switched, the stitch length is changed by manual adjustment, so that the working efficiency of the sewing machine is reduced.
Disclosure of Invention
The invention mainly aims to provide a sewing machine, which aims to solve the problem of low working efficiency of the sewing machine in the prior art.
In order to achieve the above object, the present invention provides a sewing machine having a needle pitch adjusting mechanism capable of adjusting a sewing needle pitch of the sewing machine, the needle pitch adjusting mechanism comprising: a presser foot driving component, on which a presser foot of the sewing machine is mounted, for driving the presser foot to move along a preset sewing track through the presser foot driving component; the feeding component is arranged on the feeding tooth of the sewing machine and drives the feeding tooth to move along a preset feeding direction through the feeding component; and the swinging piece is connected with the presser foot driving part at one end and the feeding part at the other end, so that the swinging piece swings around a preset axis to drive the presser foot and the feeding tooth to move relatively, and the swinging stroke of the swinging piece is adjusted to adjust the sewing needle pitch of the sewing machine.
Further, the sewing machine further includes: the power assembly comprises an eccentric connecting rod, one end of the eccentric connecting rod is provided with an eccentric hole, and at least part of an upper shaft of the sewing machine penetrates through the eccentric hole to be in driving connection with the eccentric connecting rod so as to drive the eccentric connecting rod to swing back and forth along a preset direction through the rotation of the upper shaft; the other end of the eccentric connecting rod is in driving connection with the swinging piece so as to adjust the swinging stroke of the swinging piece by adjusting the distance between the hole axis of the eccentric hole and the axis of the upper shaft.
Further, the sewing machine further includes: the adjusting assembly comprises an adjusting seat, the adjusting seat is connected with one end, far away from the upper shaft, of the eccentric connecting rod, and the adjusting seat rotates around a preset axis to drive the eccentric connecting rod to move in the vertical direction so as to adjust the distance between the hole center line of the eccentric hole and the axis line of the upper shaft.
Further, the adjustment assembly further comprises: the first connecting rod group is connected with the eccentric connecting rod at least in part through the connecting pin, and one end, far away from the connecting pin, of the first connecting rod group is connected with the adjusting seat, so that the adjusting seat drives the eccentric connecting rod to move through the first connecting rod group.
Further, the adjustment assembly further comprises: and at least part of the second connecting rod group is arranged on the connecting pin, and one end of the second connecting rod group, which is far away from the connecting pin, is hinged with the swinging piece, so that the eccentric connecting rod drives the swinging piece to move through the second connecting rod group.
Further, the adjustment assembly further comprises: and the driving device is in driving connection with the adjusting seat and is used for driving the adjusting seat to rotate by a preset angle around a preset axis.
Further, the power assembly further comprises: the eccentric block is sleeved on the upper shaft, and the eccentric connecting rod is sleeved on the eccentric block through the eccentric hole, so that at least part of the hole wall of the eccentric hole is abutted against the circumferential surface of the eccentric block, and the eccentric connecting rod is driven to swing back and forth along a preset direction through the circumferential motion of the eccentric block.
Further, the presser foot drive member includes: the swinging piece is in driving connection with the swinging needle shaft; the presser foot shaft is arranged at the end part of the presser foot shaft so as to drive the presser foot to move through the presser foot shaft; one end of the presser foot shaft, which is far away from the presser foot, is connected with the pendulum needle shaft so that the pendulum needle shaft drives the presser foot to move through the presser foot shaft.
Further, the feeding part includes: the swing piece is in driving connection with the feed lifting shaft; and the feeding tooth is arranged on the feeding tooth rack, and one end of the feed lifting shaft, which is far away from the swinging piece, is in driving connection with the feeding tooth rack so that the feed lifting shaft drives the feeding tooth to move through the feeding tooth rack.
Further, the feeding part further comprises: the first connecting piece and the swinging piece are both rod bodies, one end of the first connecting piece is hinged with the swinging piece, and a first preset included angle is formed between the rod body of the first connecting piece and the rod body of the swinging piece; the second connecting piece is a rod body, the other end of the first connecting piece is hinged to the second connecting piece, one end, far away from the first connecting piece, of the second connecting piece is in driving connection with the tooth lifting shaft, and a second preset included angle is formed between the rod body of the second connecting piece and the rod body of the first connecting piece, so that the swinging piece drives the tooth lifting shaft to rotate around a preset axis through the first connecting piece and the second connecting piece.
Further, the feeding part further comprises: and one end of the second connecting frame is fixedly connected with the feed lifting tooth shaft, and the other end of the second connecting frame is hinged with the feed tooth frame so as to drive the feed tooth frame to move along a preset track through the second connecting frame when the feed lifting tooth shaft moves around a preset axis.
The invention adopts the technical proposal that the sewing machine is provided with a needle distance adjusting mechanism which can adjust the sewing needle distance of the sewing machine, the needle distance adjusting mechanism comprises a presser foot driving component, a feeding component and a swinging component, the presser foot of the sewing machine is arranged on the presser foot driving component to drive the presser foot to move along a preset sewing track through the presser foot driving component, the feeding teeth of the sewing machine are arranged on the feeding component to drive the feeding teeth to move along a preset feeding direction through the feeding component, one end of the swinging component is connected with the presser foot driving component, the other end of the swinging component is connected with the feeding component to drive the presser foot and the feeding teeth to move relatively through swinging the swinging component around a preset axis, and the sewing needle distance of the sewing machine is adjusted through adjusting the swinging stroke of the swinging component, the structure is simple and convenient to install, the sewing needle distance of the sewing machine can be independently adjusted, when the stitch length needs to be adjusted, the sewing machine does not need to be stopped, and the problem that the sewing machine in the prior art is low in working efficiency is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, 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 sewing machine according to the present invention; and
fig. 2 shows a schematic structural view of an embodiment of the adjustment assembly according to the invention.
Wherein the figures include the following reference numerals:
10. a presser foot drive member; 11. a presser foot; 12. a needle swinging shaft; 13. a presser foot shaft; 14. a first connecting frame;
20. a feeding part; 21. feeding teeth; 22. a feed lifting shaft; 23. a feeding tooth rack; 24. a first connecting member; 25. a second connecting member; 26. a second link frame;
30. a swinging member;
40. an adjustment assembly; 41. an adjusting seat; 42. a first link group; 420. a first end; 421. a second end; 43. a second linkage; 44. a connecting pin; 45. a drive device; 46. mounting a plate; 47. a coupling;
50. a power assembly; 51. an eccentric link; 510. an eccentric hole; 52. an eccentric block;
60. and (7) an upper shaft.
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 embodiments with reference to the attached drawings.
The present invention provides a sewing machine, please refer to fig. 1 and 2, having a stitch length adjusting mechanism capable of adjusting a sewing stitch length of the sewing machine, the stitch length adjusting mechanism comprising: a presser foot driving part 10, on which a presser foot 11 of the sewing machine is mounted, to drive the presser foot 11 to move along a predetermined sewing track by the presser foot driving part 10; the feeding part 20, the feeding tooth 21 of the sewing machine is installed on the feeding part 20, so that the feeding tooth 21 is driven to move along the preset feeding direction by the feeding part 20; and the swinging piece 30, one end of the swinging piece 30 is connected with the presser foot driving part 10, the other end of the swinging piece 30 is connected with the feeding part 20, so that the swinging piece 30 swings around a preset axis to drive the presser foot 11 and the feeding tooth 21 to move relatively, and the movement stroke of the presser foot 11 and the feeding tooth 21 is adjusted by adjusting the swinging stroke of the swinging piece 30 to adjust the sewing needle pitch of the sewing machine.
According to the invention, the sewing machine is provided with a needle distance adjusting mechanism capable of adjusting the sewing needle distance of the sewing machine, the needle distance adjusting mechanism comprises a presser foot driving part 10, a feeding part 20 and a swinging part 30, a presser foot 11 of the sewing machine is arranged on the presser foot driving part 10 so as to drive the presser foot 11 to move along a preset sewing track through the presser foot driving part 10, a feeding tooth 21 of the sewing machine is arranged on the feeding part 20 so as to drive the feeding tooth 21 to move along a preset feeding direction through the feeding part 20, one end of the swinging part 30 is connected with the presser foot driving part 10, the other end of the swinging part 30 is connected with the feeding part 20 so as to drive the presser foot 11 and the feeding tooth 21 to move relatively through swinging the swinging part 30 around a preset axis, and the sewing needle distance of the sewing machine is adjusted through adjusting the swinging stroke of the swinging part 30 and adjusting the moving stroke of the presser foot 11 and the feeding tooth 21, the sewing needle pitch of the sewing machine can be independently adjusted, when the needle pitch is required to be adjusted, the sewing machine does not need to be stopped, and the problem that the sewing machine in the prior art is low in working efficiency is solved.
Specifically, the sewing machine further includes: the power assembly 50, the power assembly 50 includes an eccentric connecting rod 51, one end of the eccentric connecting rod 51 is provided with an eccentric hole 510, at least part of an upper shaft 60 of the sewing machine is arranged in the eccentric hole 510 in a penetrating way to be in driving connection with the eccentric connecting rod 51, so that the eccentric connecting rod 51 is driven to swing back and forth along a preset direction through the rotation of the upper shaft 60; the other end of the eccentric link 51 is drivingly connected to the oscillating member 30 to adjust the oscillating stroke of the oscillating member 30 by adjusting the distance between the hole center line of the eccentric hole 510 and the axis line of the upper shaft 60, and the oscillating member 30 is driven to oscillate by the power assembly 50 to move the presser foot 11 and the feed dog 21 relatively synchronously during normal sewing.
In order to facilitate adjustment of the swing stroke of the swing member 30, the sewing machine further includes: the adjusting assembly 40, the adjusting assembly 40 includes an adjusting seat 41, the adjusting seat 41 is connected to one end of the eccentric link 51 far away from the upper shaft 60, so as to adjust the distance between the hole center line of the eccentric hole 510 and the shaft center line of the upper shaft 60 by rotating the adjusting seat 41 around a predetermined axis to drive the eccentric link 51 to move in the vertical direction, and it should be noted herein that, when the upper shaft 60 rotates in the eccentric hole 510, the distance between the hole center line of the eccentric hole 510 and the shaft center line of the upper shaft 60 generates a cyclic variation along with the rotation of the upper shaft 60, so that the upper shaft 60 drives the eccentric link 51 to swing.
Further, as shown in fig. 2, the adjusting assembly 40 further includes: the first connecting rod group 42, at least part of the first connecting rod group 42 is connected with the eccentric connecting rod 51 through the connecting pin 44, and one end of the first connecting rod group 42 far away from the connecting pin 44 is connected with the adjusting seat 41, so that the adjusting seat 41 drives the eccentric connecting rod 51 to move through the first connecting rod group 42; specifically, the first end 420 of the first link group 42 is connected to the connecting pin 44, and the second end 421 of the first link group 42 is connected to the adjusting base 41, so that the adjusting base 41 drives the eccentric link 51 to move through the first link group 42.
Preferably, the adjusting base 41 includes a first connecting plate and a second connecting plate which are oppositely arranged, the first connecting plate and the second connecting plate are connected through a third connecting plate, a mounting area is formed among the first connecting plate, the second connecting plate and the third connecting plate, and the first link group 42, the second link group 43 and the connecting pin 44 are all mounted in the mounting area; the first connecting rod group 42 comprises a first connecting rod and a second connecting rod, the first connecting rod is connected with the first connecting plate, the second connecting rod is connected with the second connecting plate, the first connecting rod group 42 is driven to move more stably when the adjusting seat 41 is adjusted, and the stability of the presser foot 11 and the feeding tooth 21 is guaranteed when the sewing needle pitch is adjusted.
Specifically, the adjustment assembly 40 further includes: a second linkage 43, at least part of the second linkage 43 is mounted on the connecting pin 44, and one end of the second linkage 43 away from the connecting pin 44 is hinged with the swinging member 30, so that the eccentric link 51 drives the swinging member 30 to move through the second linkage 43; the second linkage 43 includes a third link and a fourth link, which are respectively connected to two sides of the swinging member 30, so that the swinging member 30 moves more stably in the transmission process.
In particular implementation, the adjustment assembly 40 further includes: the driving device 45 is connected with the adjusting seat 41 in a driving mode and used for driving the adjusting seat 41 to rotate for a preset angle around a preset axis, the driving device 45 is preferably a driving motor, the driving device 45 is installed on the machine body of the sewing machine through an installation plate 46, and a driving shaft of the driving motor is connected with the adjusting seat 41 in a driving mode through a coupler 47.
In order to further improve the transmission performance of the eccentric link 51, the power assembly 50 further includes: the eccentric block 52, the eccentric block 52 is sleeved on the upper shaft 60, the eccentric connecting rod 51 is sleeved on the eccentric block 52 through the eccentric hole 510, so that at least part of the hole wall of the eccentric hole 510 is abutted against the circumferential surface of the eccentric block 52, and the eccentric connecting rod 51 is driven to swing back and forth along the preset direction through the circumferential motion of the eccentric block 52.
In an embodiment provided by the present invention, the presser foot drive member 10 includes: the needle swinging shaft 12 and the swinging piece 30 are in driving connection with the needle swinging shaft 12; the presser foot shaft 13 is used for driving the presser foot 11 to move, and the presser foot 11 is arranged at the end part of the presser foot shaft 13; one end of the presser foot shaft 13 far away from the presser foot 11 is connected with the needle swinging shaft 12, so that the needle swinging shaft 12 drives the presser foot 11 to move through the presser foot shaft 13.
The presser foot driving component 10 further includes a first connecting frame 14, at least a portion of the first connecting frame 14 is connected to the needle swinging shaft 12, a first mounting hole is formed in the first connecting frame 14, at least a portion of one end, far away from the presser foot 11, of the presser foot shaft 13 is inserted into the first mounting hole and connected to the first connecting frame 14, and the needle swinging shaft 12 drives the presser foot shaft 13 to move along a predetermined direction through the first connecting frame 14.
In the embodiment provided by the present invention, the feeding part 20 includes: the lifting tooth shaft 22 and the swinging piece 30 are in driving connection with the lifting tooth shaft 22; the feeding tooth rack 23 is provided with feeding teeth 21, the feeding teeth 21 are arranged on the feeding tooth rack 23, and one end of the feed lifting tooth shaft 22, which is far away from the swinging piece 30, is in driving connection with the feeding tooth rack 23, so that the feed lifting tooth shaft 22 drives the feeding teeth 21 to move through the feeding tooth rack 23.
Specifically, the feeding part 20 further includes: the first connecting piece 24, the first connecting piece 24 and the swinging piece 30 are rod bodies, one end of the first connecting piece 24 is hinged with the swinging piece 30, and a first preset included angle is formed between the rod body of the first connecting piece 24 and the rod body of the swinging piece 30; and the second connecting piece 25 is a rod body, the other end of the first connecting piece 24 is hinged to the second connecting piece 25, one end, far away from the first connecting piece 24, of the second connecting piece 25 is in driving connection with the feed lifting teeth shaft 22, and a second preset included angle is formed between the rod body of the second connecting piece 25 and the rod body of the first connecting piece 24, so that the swinging piece 30 drives the feed lifting teeth shaft 22 to rotate around a preset axis through the first connecting piece 24 and the second connecting piece 25.
The feeding part 20 further includes: and one end of the second connecting frame 26 is fixedly connected with the feed lifting teeth shaft 22, and the other end of the second connecting frame 26 is hinged with the feed lifting teeth frame 23, so that when the feed lifting teeth shaft 22 moves around a preset axis, the feed lifting teeth frame 23 is driven to move along a preset track through the second connecting frame 26.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the invention provides a sewing machine, which is provided with a needle distance adjusting mechanism capable of adjusting the sewing needle distance of the sewing machine, the needle distance adjusting mechanism comprises a presser foot driving component 10, a feeding component 20 and a swinging component 30, a presser foot 11 of the sewing machine is arranged on the presser foot driving component 10 so as to drive the presser foot 11 to move along a preset sewing track through the presser foot driving component 10, a feeding tooth 21 of the sewing machine is arranged on the feeding component 20 so as to drive the feeding tooth 21 to move along a preset feeding direction through the feeding component 20, one end of the swinging component 30 is connected with the presser foot driving component 10, the other end of the swinging component 30 is connected with the feeding component 20 so as to drive the presser foot 11 and the feeding tooth 21 to move relatively through swinging the swinging component 30 around a preset axis, and adjust the sewing needle distance of the sewing machine through adjusting the swinging stroke of the swinging component 30 and adjusting the moving stroke of the presser foot 11 and the feeding tooth 21, through the rotation angle of adjusting the driving motor drive shaft, can independently adjust sewing machine's sewing gauge of stitch, when needs adjust the gauge of stitch, need not to shut down sewing machine, the problem that sewing machine work efficiency among the prior art is low has been solved.
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 sewing machine having a needle pitch adjustment mechanism capable of adjusting a sewing needle pitch of the sewing machine, characterized in that the needle pitch adjustment mechanism comprises:
a presser foot driving part (10), a presser foot (11) of the sewing machine is arranged on the presser foot driving part (10) so as to drive the presser foot (11) to move along a preset sewing track through the presser foot driving part (10);
the feeding part (20), a feeding tooth (21) of the sewing machine is arranged on the feeding part (20) so as to drive the feeding tooth (21) to move along a preset feeding direction through the feeding part (20);
the swing piece (30) is connected with the presser foot driving component (10) at one end, and the other end of the swing piece (30) is connected with the feeding component (20) so as to drive the presser foot (11) and the feeding tooth (21) to move relatively by swinging the swing piece (30) around a preset axis and adjust the movement stroke of the presser foot (11) and the feeding tooth (21) by adjusting the swinging stroke of the swing piece (30) to adjust the sewing needle pitch of the sewing machine.
2. The sewing machine of claim 1, further comprising:
the power assembly (50) comprises an eccentric connecting rod (51), one end of the eccentric connecting rod (51) is provided with an eccentric hole (510), at least part of an upper shaft (60) of the sewing machine penetrates through the eccentric hole (510) to be in driving connection with the eccentric connecting rod (51), and the eccentric connecting rod (51) is driven to swing back and forth along a preset direction through the rotation of the upper shaft (60);
the other end of the eccentric connecting rod (51) is in driving connection with the swinging piece (30) so as to adjust the swinging stroke of the swinging piece (30) by adjusting the distance between the hole center line of the eccentric hole (510) and the shaft center line of the upper shaft (60).
3. The sewing machine of claim 2, further comprising:
the adjusting assembly (40) comprises an adjusting seat (41), the adjusting seat (41) is connected with one end, far away from the upper shaft (60), of the eccentric connecting rod (51), so that the adjusting seat (41) rotates around a preset axis to drive the eccentric connecting rod (51) to move along the vertical direction to adjust the distance between the hole center line of the eccentric hole (510) and the shaft center line of the upper shaft (60).
4. The sewing machine according to claim 3, characterized in that the adjustment assembly (40) further comprises:
the first connecting rod group (42), at least part of the first connecting rod group (42) is connected with the eccentric connecting rod (51) through a connecting pin (44), and one end, far away from the connecting pin (44), of the first connecting rod group (42) is connected with the adjusting seat (41), so that the adjusting seat (41) drives the eccentric connecting rod (51) to move through the first connecting rod group (42).
5. Sewing machine as in claim 4, characterized in that said adjustment assembly (40) further comprises:
a second linkage (43), at least part of the second linkage (43) is mounted on the connecting pin (44), and one end of the second linkage (43) far away from the connecting pin (44) is hinged with the swinging piece (30) so that the eccentric connecting rod (51) drives the swinging piece (30) to move through the second linkage (43).
6. Sewing machine as in claim 5, characterized in that said adjustment assembly (40) further comprises:
the driving device (45) is in driving connection with the adjusting seat (41) and used for driving the adjusting seat (41) to rotate around a preset axis by a preset angle.
7. The sewing machine according to claim 2, wherein the power assembly (50) further comprises:
the eccentric block (52), eccentric block (52) cover is established on upper shaft (60), eccentric connecting rod (51) pass through eccentric hole (510) cover is established on eccentric block (52), so that at least partial pore wall of eccentric hole (510) with the periphery butt of eccentric block (52), in order to pass through the circular motion drive of eccentric block (52) eccentric connecting rod (51) is along predetermined direction reciprocating swing.
8. The sewing machine according to claim 1, wherein the presser foot drive member (10) comprises:
the needle swinging shaft (12), the swinging piece (30) is in driving connection with the needle swinging shaft (12);
the presser foot shaft (13), the presser foot (11) is installed at the end part of the presser foot shaft (13) so as to drive the presser foot (11) to move through the presser foot shaft (13); one end of the presser foot shaft (13) far away from the presser foot (11) is connected with the needle swinging shaft (12) so that the needle swinging shaft (12) drives the presser foot (11) to move through the presser foot shaft (13).
9. The sewing machine according to claim 1, characterized in that the feed member (20) comprises:
the lifting tooth shaft (22), the swinging piece (30) is in driving connection with the lifting tooth shaft (22);
the feeding tooth rack (23), the feeding tooth (21) is installed on the feeding tooth rack (23), and one end, far away from the swinging piece (30), of the feed lifting tooth shaft (22) is in driving connection with the feeding tooth rack (23), so that the feed lifting tooth shaft (22) drives the feeding tooth (21) to move through the feeding tooth rack (23).
10. The sewing machine according to claim 9, wherein the feed member (20) further comprises:
the first connecting piece (24) and the swinging piece (30) are both rod bodies, one end of the first connecting piece (24) is hinged with the swinging piece (30), and a first preset included angle is formed between the rod body of the first connecting piece (24) and the rod body of the swinging piece (30);
the swing piece (30) is driven by the first connecting piece (24) and the second connecting piece (25) to rotate around a preset axis through the first connecting piece (24) and the second connecting piece (25), the second connecting piece (25) is a rod body, the other end of the first connecting piece (24) is hinged to the second connecting piece (25), one end, far away from the first connecting piece (24), of the second connecting piece (25) is in driving connection with the tooth lifting shaft (22), and a second preset included angle is formed between the rod body of the second connecting piece (25) and the rod body of the first connecting piece (24).
11. The sewing machine according to claim 10, wherein the feed member (20) further comprises:
one end of the second connecting frame (26) is fixedly connected with the feed lifting tooth shaft (22), and the other end of the second connecting frame (26) is hinged with the feed lifting tooth frame (23) so that the feed lifting tooth frame (23) is driven to move along a preset track through the second connecting frame (26) when the feed lifting tooth shaft (22) moves around a preset axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250823.2A CN111748918A (en) | 2019-03-29 | 2019-03-29 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250823.2A CN111748918A (en) | 2019-03-29 | 2019-03-29 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111748918A true CN111748918A (en) | 2020-10-09 |
Family
ID=72671746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910250823.2A Pending CN111748918A (en) | 2019-03-29 | 2019-03-29 | Sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111748918A (en) |
-
2019
- 2019-03-29 CN CN201910250823.2A patent/CN111748918A/en active Pending
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