CN215251594U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN215251594U CN215251594U CN202120943610.0U CN202120943610U CN215251594U CN 215251594 U CN215251594 U CN 215251594U CN 202120943610 U CN202120943610 U CN 202120943610U CN 215251594 U CN215251594 U CN 215251594U
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Abstract
The present invention relates to a sewing machine. The sewing equipment comprises a main shaft mechanism, a cloth feeding differential shaft, a needle pitch adjusting shaft, a differential tooth mechanism and a cloth feeding tooth mechanism; the main shaft mechanism is respectively connected with the differential tooth mechanism and the feed tooth mechanism through a feed differential shaft and drives the differential tooth mechanism and the feed tooth mechanism to move; the needle distance adjusting shaft is respectively connected with the main shaft mechanism and the cloth feeding differential shaft, the swing amplitude of the cloth feeding differential shaft can be adjusted by adjusting the position of the needle distance adjusting shaft, so that the differential tooth driven by the differential tooth mechanism and the cloth feeding tooth driven by the cloth feeding tooth mechanism move according to different tracks, and the nearest positions of the differential tooth and the cloth feeding tooth in the different tracks and a needle of the sewing device are the same. The cloth feeding effect of the sewing equipment is better.
Description
Technical Field
The invention relates to the field of textile equipment, in particular to sewing equipment.
Background
The flat seaming machine is an industrial sewing machine which mainly utilizes two kinds of stitches of a needle and a shuttle to enable the shuttle thread to form a single-side covering chain stitch on the bottom surface of a sewing material, or adds a covering thread on the front surface of the sewing material to form a double-side covering chain stitch and sews two or more layers of sewing materials.
The existing flat seaming machine has the problems that a main shaft pin is easy to break, a needle pitch pin is easy to break, the contact effective tooth number with a presser foot is small in the tooth feeding process, and the feeding is unsmooth due to a large gap with a needle plate 3. Especially in the processes of pressing bones and the like, the feeding effect is greatly influenced because the effective tooth number of the contact between the teeth and the presser foot is small.
Disclosure of Invention
In view of the above, the present invention provides a sewing machine to solve the problem of poor feeding effect of the existing flat seaming machine.
The invention provides sewing equipment which comprises a main shaft mechanism, a cloth feeding differential shaft, a needle pitch adjusting shaft, a differential tooth mechanism and a cloth feeding tooth mechanism, wherein the main shaft mechanism is connected with the cloth feeding differential shaft; the main shaft mechanism is respectively connected with the differential tooth mechanism and the feed tooth mechanism through a feed differential shaft and drives the differential tooth mechanism and the feed tooth mechanism to move; the needle distance adjusting shaft is respectively connected with the main shaft mechanism and the cloth feeding differential shaft, the swing amplitude of the cloth feeding differential shaft can be adjusted by adjusting the position of the needle distance adjusting shaft, so that the differential tooth driven by the differential tooth mechanism and the cloth feeding tooth driven by the cloth feeding tooth mechanism move according to different tracks, and the nearest positions of the differential tooth and the cloth feeding tooth in the different tracks and a needle of the sewing device are the same.
According to the arrangement, the sewing equipment drives the differential tooth mechanism and the feed tooth mechanism to move respectively through the main shaft mechanism, so that the differential tooth and the feed tooth are driven to move, and cloth feeding is realized. The feed differential shaft is respectively connected with the differential tooth mechanism and the feed tooth mechanism, and the swing amplitude of the feed differential shaft is limited by the needle pitch adjusting shaft, so that the differential tooth and the feed tooth can move according to different tracks by adjusting the needle pitch adjusting shaft, thereby realizing different feed effects.
In other embodiments, the spindle mechanism comprises: a main shaft; the cloth feeding cam is fixed on the main shaft; the cloth feeding large connecting rod is hinged to the cloth feeding cam and is connected with the needle pitch adjusting shaft and the cloth feeding differential shaft respectively so as to drive the cloth feeding differential shaft to move.
So set up, can realize the reliable drive to work feed differential shaft.
In other embodiments, the spindle mechanism further comprises: the differential eccentric wheel is fixedly connected with the main shaft; and the differential transmission connecting rod is hinged with the differential eccentric wheel and is connected with the differential tooth mechanism, and the differential tooth mechanism is also connected with the differential tooth and the cloth feeding differential shaft respectively so as to ensure that the differential tooth and the nearest position of the needle are at the same position when moving along different tracks.
The arrangement can reliably drive the differential tooth.
In other embodiments, the sewing apparatus further comprises a small gauge needle connecting rod and a large gauge needle swinging connecting rod, the large cloth feeding connecting rod is connected with the gauge needle adjusting shaft through the small gauge needle connecting rod, and the large cloth feeding connecting rod is connected with the cloth feeding differential shaft through the large gauge needle swinging connecting rod.
So set up for the structure is simpler, firm, and realizes the gauge needle and adjusts.
In other embodiments, a needle pitch swing crank is fixedly arranged on the cloth feeding differential shaft, and a needle pitch swing connecting rod is hinged on the needle pitch swing crank.
So set up, can promote transmission reliability, and simplify the structure.
In other embodiments, the feed dog mechanism comprises: the needle pitch crank connecting rod is fixedly connected with the cloth feeding differential shaft; the needle pitch swing small connecting rod is hinged with the needle pitch crank connecting rod and a cloth feeding tooth frame of the cloth feeding tooth respectively.
So set up, can realize the drive to feed dog frame and feed dog.
In other embodiments, a differential tooth mechanism comprises: the differential swing crank is respectively hinged with the differential transmission connecting rod and the cloth feeding differential shaft; and the differential connecting rod assembly is respectively hinged with the differential transmission connecting rod and the differential tooth rack of the differential tooth so as to drive the differential tooth to move along different tracks, and the positions of the differential tooth closest to the needle in the different tracks are the same.
By such an arrangement, the reliability of the differential tooth drive can be improved.
In other embodiments, a differential link assembly includes: the first differential small connecting rod is hinged with the differential tooth rack; the second differential small connecting rod is hinged with the differential transmission connecting rod; and the differential swing connecting rod is hinged with the first differential small connecting rod and the second differential small connecting rod respectively.
So set up for the structure is compacter.
In other embodiments, the differential oscillating link is further articulated with a differential adjustment assembly to adjust the differential amount of the differential teeth driven by the differential adjustment assembly.
So set up, can conveniently adjust the difference momentum.
In other embodiments, the sewing apparatus further comprises: the needle pitch adjusting crank is fixedly connected with the needle pitch adjusting shaft; the needle pitch adjusting rod penetrates through the needle pitch adjusting crank and can move relative to the needle pitch adjusting crank; the needle distance limiting block is in threaded connection with the needle distance adjusting rod, and the position of the needle distance limiting block on the needle distance adjusting rod is adjustable; the needle pitch resetting component is connected with the needle pitch adjusting crank and applies acting force which is tightly propped against the needle pitch limiting block to the needle pitch adjusting crank.
So set up, can make the gauge needle adjust more convenient.
Drawings
Fig. 1 is a schematic perspective view of a sewing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic partial perspective view of a first viewing angle of a sewing apparatus according to an embodiment of the present invention;
FIG. 3 is a partial perspective view of a second viewing angle of a sewing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the trajectories of the differential feed dog and the feed dog of the sewing apparatus according to the embodiment of the present invention.
Description of reference numerals:
1. differential teeth; 2. a feed dog; 3. a needle plate; 4. a small tooth lifting slider; 5. a feed lifting shaft; 6. a main shaft; 7. a needle pitch swing crank; 8. a cloth feeding differential shaft; 9. a needle pitch adjusting shaft; 10. needle pitch reset spring screws; 11. a needle pitch reset spring; 12. a stitch length limiting block; 13. a needle pitch adjusting crank; 14. a needle pitch adjusting rod; 15. a needle pitch fixing connecting rod; 16. a cloth feeding large connecting rod; 17. a cloth feeding cam; 18. a differential conversion crank; 19. a big feed lifting slider; 20. a feed dog frame; 21. a differential dental articulator; 22. a first differential small connecting rod; 23. a second differential small connecting rod; 24. a differential swing crank; 25. a differential swing link; 26. a differential drive link; 27. a differential eccentric wheel; 28. a small gauge link; 29. a needle pitch swing link; 30. a stitch length crank link; 31. a small needle pitch swing connecting rod; 32. a differential adjustment assembly; 33. a needle; 34. and a presser foot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, the present embodiment provides a sewing apparatus, which includes a main shaft mechanism, a feeding differential shaft 8, a needle pitch adjusting shaft 9, a differential gear mechanism and a feeding gear mechanism; the main shaft mechanism is respectively connected with the differential tooth mechanism and the feed tooth mechanism through a feed differential shaft 8 and drives the differential tooth mechanism and the feed tooth mechanism to move; the needle distance adjusting shaft 9 is respectively connected with the main shaft mechanism and the cloth feeding differential shaft 8, the swinging amplitude of the cloth feeding differential shaft 8 can be adjusted by adjusting the position of the needle distance adjusting shaft 9, so that the differential tooth 1 driven by the differential tooth mechanism and the cloth feeding tooth 2 driven by the cloth feeding tooth mechanism move according to different tracks, and the nearest positions of the differential tooth 1 and the cloth feeding tooth 2 in the different tracks and a machine needle of the sewing device are the same.
The sewing equipment respectively drives the differential tooth mechanism and the feed tooth mechanism to move through the main shaft mechanism, thereby driving the differential tooth 1 and the feed tooth 2 to move and realizing the feed. Because the feed differential shaft 8 is respectively connected with the differential tooth mechanism and the feed tooth mechanism, and the swing amplitude of the feed differential shaft 8 is limited by the needle pitch adjusting shaft 9, the differential tooth 1 and the feed tooth 2 can move according to different tracks by adjusting the needle pitch adjusting shaft 9, thereby realizing different feed effects, and because the feed tooth mechanism and the differential tooth mechanism can ensure that the positions closest to the machine needle are the same when the feed tooth 2 and the differential tooth 1 move along different tracks, and the position closest to the machine needle is the position with the most effective teeth contacted with the presser foot, the effective teeth matched with the presser foot are higher no matter which track the feed tooth 2 and the differential tooth 1 move along, thereby ensuring the feed effect.
In the present embodiment, the main shaft mechanism is used as a power source for driving the needle pitch adjusting shaft 9, the feed differential shaft 8, the differential feed mechanism, the feed dog mechanism, and the like.
As shown in fig. 1, a differential feed dog 1 of the sewing machine is fixedly connected to a differential feed dog holder 21, a feed dog 2 is fixedly connected to a feed dog holder 20, and both the feed dog 2 and the differential feed dog 1 are movably provided on a needle plate 3. The needle plate 3 is fixed to a base body of the sewing machine, the differential feed dog 1 is supported by a differential feed dog holder 21 and movably provided on the base body, and the feed dog 2 is supported by a feed dog holder 20 so as to movably engage with the base body.
An open slot is arranged at the tail ends of the feed dog 2 and the differential dog 1, a small feed dog slider 4 is arranged in the open slot, the small feed dog slider 4 can be connected with the differential dog 1 in a sliding way relative to the feed dog 2, and a feed dog shaft 5 is hinged on the small feed dog slider 4 to drive the feed dog to move.
In one example, the spindle mechanism includes a spindle 6, a cloth feed cam 17, and a cloth feed large link 16, wherein the cloth feed cam 17 is fixed on the spindle 6; the cloth feeding large connecting rod 16 is hinged on the cloth feeding cam 17, and the cloth feeding large connecting rod 16 is respectively connected with the needle pitch adjusting shaft 9 and the cloth feeding differential shaft 8 so as to drive the cloth feeding differential shaft 8 to move. The main shaft 6 is used as a power source, the main shaft 6 drives the cloth feeding cam 17 fixed on the main shaft to rotate when rotating, and the cloth feeding cam 17 is of an eccentric structure, so that the cloth feeding cam 17 rotates to drive the hinged cloth feeding large connecting rod 16 to swing, further drive the needle pitch adjusting shaft 9 and the cloth feeding differential shaft 8 connected with the cloth feeding large connecting rod to move, and further drive the cloth feeding tooth mechanism by the cloth feeding differential shaft 8 to drive the cloth feeding tooth 2 to move.
In order to avoid the interference between the main shaft 6 and the differential tooth 1 and the feed dog 2, a big feed dog sliding block 19 is further arranged on the main shaft 6, the big feed dog sliding block 19 is hinged with the main shaft 6, and the big feed dog sliding block 19 can slide relative to the feed dog 2 and the differential tooth 1.
In order to drive the differential gear 1 to move, the main shaft mechanism further comprises a differential eccentric 27 and a differential transmission connecting rod 26, wherein the differential eccentric 27 is fixedly connected with the main shaft 6; the differential drive connecting rod 26 is hinged to the differential eccentric 27 and connected to a differential tooth mechanism, which is also connected to the differential tooth 1 and the feed differential shaft 8, respectively, so that the differential tooth 1 moves along different trajectories at the same position as the nearest position of the needle. Thus, when the main shaft 6 rotates, the differential eccentric wheel 27 fixed on the main shaft rotates along with the main shaft, and further the differential transmission connecting rod 26 hinged with the differential eccentric wheel 27 swings under the eccentric action to drive the differential tooth mechanism to move, and because the differential tooth mechanism is respectively connected with the differential tooth 1 and the cloth feeding differential shaft 8, the differential tooth 1 can move along different tracks under the limiting action of the cloth feeding differential shaft 8, and the nearest positions of the differential tooth 1 and a machine needle can be ensured to be the same when the differential tooth 1 moves along different tracks, so that the differential tooth 1 can be ensured to have positions with more effective teeth along different tracks, and the cloth feeding effect is ensured.
The following description will be made of a connection structure between the spindle mechanism and the feed dog 2 and a connection structure between the spindle mechanism and the differential dog 1, respectively, as follows:
as shown in fig. 1 and 3, in order to realize the cloth feeding large link 16 and the pitch adjustment shaft 9, and the cloth feeding differential shaft 8, the sewing apparatus further includes a pitch small link 28 and a pitch swing link 29, the cloth feeding large link 16 is connected to the pitch adjustment shaft 9 through the pitch small link 28, and the cloth feeding large link 16 is connected to the cloth feeding differential shaft 8 through the pitch swing link 29. In this way, when the cloth feeding large connecting rod 16 drives the cloth feeding differential shaft 8 to move, the swing angle of the cloth feeding differential shaft 8 can be limited by the needle pitch adjusting shaft 9 in association with the needle pitch adjusting shaft 9.
As shown in fig. 1, a needle pitch fixing connecting rod 15 is fixedly connected to the needle pitch adjusting shaft 9, and a needle pitch small connecting rod 28 is hinged to the needle pitch fixing connecting rod 15 to realize transmission.
In a specific example, a pitch oscillating crank 7 is fixedly arranged on the cloth feeding differential shaft 8, and a pitch oscillating connecting rod 29 is hinged on the pitch oscillating crank 7, so that transmission between the cloth feeding large connecting rod 16 and the cloth feeding differential shaft 8 is realized.
The feed dog mechanism is connected between the feed differential shaft 8 and the feed dog frame 20, in one example, the feed dog mechanism comprises a needle pitch crank connecting rod 30 and a needle pitch swing small connecting rod 31, and the needle pitch crank connecting rod 30 is fixedly connected with the feed differential shaft 8; the small pitch swing link 31 is hinged to the pitch crank link 30 and the feed dog holder 20 of the feed dog 2, respectively. This drives the pitch crank link 30, which is fixedly connected to the feed differential shaft 8, in a pivoting manner, so that the articulated pitch small link 31 is moved and thus drives the feed dog carrier 20.
Optionally, the sewing device further comprises a needle pitch adjusting crank 13, a needle pitch adjusting rod 14, a needle pitch limiting block 12 and a needle pitch resetting assembly, wherein the needle pitch adjusting crank 13 is fixedly connected with the needle pitch adjusting shaft 9; the needle pitch adjusting rod 14 penetrates through the needle pitch adjusting crank 13 and can move relative to the needle pitch adjusting crank 13; the needle distance limiting block 12 is in threaded connection with the needle distance adjusting rod 14, and the position of the needle distance limiting block 12 on the needle distance adjusting rod 14 is adjustable; the needle pitch resetting component is connected with the needle pitch adjusting crank 13 and applies acting force which is tightly propped against the needle pitch limiting block 12 to the needle pitch adjusting crank 13. The needle pitch limiting block 12 is matched with the needle pitch resetting component, so that the position of the needle pitch adjusting shaft 9 can be adjusted, the swinging range of the cloth feeding large connecting rod 16 is further limited, and the purpose of limiting the swinging range of the cloth feeding differential shaft 8 is achieved.
In this embodiment, the needle pitch resetting assembly comprises a needle pitch resetting spring 11 and a needle pitch resetting spring screw 10, the needle pitch resetting spring screw 10 is fixedly arranged on the substrate, one end of the needle pitch resetting spring 11 is connected to the needle pitch resetting spring screw 10, and the other end of the needle pitch resetting spring is connected to the needle pitch adjusting crank 13, so that the needle pitch adjusting crank 13 is tensioned.
Optionally, the differential tooth mechanism comprises a differential oscillating crank 24 and a differential connecting rod assembly, the differential oscillating crank 24 being respectively articulated with the differential transmission connecting rod 26 and the feeding differential shaft 8; the differential connecting rod assembly is respectively hinged with the differential transmission connecting rod 26 and the differential tooth rack 21 of the differential tooth 1 so as to drive the differential tooth 1 to move along different tracks, and the positions, closest to the needle, of the differential tooth 1 in the different tracks are the same. Because the differential tooth 1 may exceed the presser foot of the sewing equipment in the moving process, the number of teeth of the differential tooth 1 contacting with the presser foot may be reduced, but the differential connecting rod assembly in the embodiment can ensure that the positions of the differential tooth 1 closest to the presser foot are the same when moving along different tracks, and the number of effective teeth matched with the presser foot is the largest, thereby ensuring the cloth feeding effect.
In one possible way, the differential link assembly comprises a first differential small link 22, a second differential small link 23 and a differential oscillating link 25, the first differential small link 22 being hinged to the differential dental articulator 21; the second differential small connecting rod 23 is hinged with the differential transmission connecting rod 26; the differential swing link 25 is hinged to the first differential small link 22 and the second differential small link 23, respectively. The differential connecting rod assembly with the structure has simple structure and reliable transmission.
Optionally, in order to be able to adjust the differential momentum and thus the feed amount, the differential oscillating link 25 is further articulated with a differential adjusting assembly 32 to adjust the differential momentum of the differential tooth 1 driven by the differential adjusting assembly 32. For example, the differential oscillating link 25 is connected to the differential adjusting unit 32 through the differential converting crank 18 so that the oscillating amount thereof is restricted by the differential adjusting unit 32, thereby achieving adjustment of the differential amount.
The sewing equipment can improve the contact tooth number of the teeth of the feed dog 2 and the differential dog 1 and the presser foot, and shorten the distance between the teeth and the needle to improve the feeding capacity. In addition, the gap between the end of the tooth close to the machine needle and the needle plate 3 does not change along with the change of the running track of the adjusting tooth in the running process, the gap between the tooth and the needle plate 3 is reduced as much as possible, the needle pitch is separated from the differential motion, the debugging of the needle pitch and the differential motion ratio in the running process of the machine is realized, the coaxial design of the differential motion and the feeding can simplify the mechanism, and the pin 6 of the main shaft is cancelled to prevent the pin from being broken.
The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. A sewing device is characterized by comprising a main shaft mechanism, a cloth feeding differential shaft (8), a needle pitch adjusting shaft (9), a differential tooth mechanism and a cloth feeding tooth mechanism;
the main shaft mechanism is respectively connected with the differential tooth mechanism and the feed tooth mechanism through the feed differential shaft (8) and drives the differential tooth mechanism and the feed tooth mechanism to move;
the needle distance adjusting shaft (9) is respectively connected with the main shaft mechanism and the cloth feeding differential shaft (8), the swinging amplitude of the cloth feeding differential shaft (8) can be adjusted by adjusting the position of the needle distance adjusting shaft (9), so that the differential tooth (1) driven by the differential tooth mechanism and the cloth feeding tooth (2) driven by the cloth feeding tooth mechanism move according to different tracks, and the nearest positions of the differential tooth (1) and the cloth feeding tooth (2) and a machine needle of the sewing device in different tracks are the same.
2. The sewing apparatus of claim 1, wherein the spindle mechanism comprises:
a main shaft (6);
a cloth feeding cam (17), wherein the cloth feeding cam (17) is fixed on the main shaft (6);
the cloth feeding large connecting rod (16) is hinged to the cloth feeding cam (17), and the cloth feeding large connecting rod (16) is connected with the needle pitch adjusting shaft (9) and the cloth feeding differential shaft (8) respectively to drive the cloth feeding differential shaft (8) to move.
3. The sewing apparatus of claim 2, wherein the spindle mechanism further comprises:
the differential eccentric wheel (27), the said differential eccentric wheel (27) is fixedly connected with said main shaft (6);
and the differential transmission connecting rod (26) is hinged with the differential eccentric wheel (27) and is connected with the differential tooth mechanism, and the differential tooth mechanism is also respectively connected with the differential tooth (1) and the cloth feeding differential shaft (8) so that the differential tooth (1) and the nearest position of the needle are at the same position when moving along different tracks.
4. The sewing machine according to claim 2, characterized in that it further comprises a small gauge link (28) and a large gauge swing link (29), the large feed link (16) being connected to the gauge adjustment shaft (9) through the small gauge link (28), the large feed link (16) being connected to the differential feed shaft (8) through the large gauge swing link (29).
5. Sewing machine as in claim 4, characterized in that said feed differential shaft (8) is fixedly provided with a needle pitch oscillating crank (7), said needle pitch oscillating connecting rod (29) being hinged on said needle pitch oscillating crank (7).
6. Sewing device as in any of claims 1-5, characterized in that said feed dog mechanism comprises:
the needle pitch crank connecting rod (30), the needle pitch crank connecting rod (30) is fixedly connected with the cloth feeding differential shaft (8);
the needle pitch swing small connecting rod (31), the needle pitch swing small connecting rod (31) is respectively hinged with the needle pitch crank connecting rod (30) and the cloth feeding tooth rack (20) of the cloth feeding tooth (2).
7. The sewing apparatus of claim 3, wherein the differential tooth mechanism comprises:
a differential oscillating crank (24), said differential oscillating crank (24) being hinged to said differential transmission connecting rod (26) and to said feed differential shaft (8), respectively;
and the differential connecting rod assembly is hinged with the differential transmission connecting rod (26) and the differential tooth (1) frame of the differential tooth (1) respectively so as to drive the differential tooth (1) to move along different tracks, and the positions of the differential tooth (1) closest to the needle in the different tracks are the same.
8. The sewing apparatus of claim 7, wherein the differential link assembly comprises:
the first differential small connecting rod (22), the first differential small connecting rod (22) is hinged with the differential tooth (1) frame;
a second differential small connecting rod (23), wherein the second differential small connecting rod (23) is hinged with the differential transmission connecting rod (26);
and the differential swing connecting rod (25) is hinged with the first differential small connecting rod (22) and the second differential small connecting rod (23) respectively.
9. Sewing device as in claim 8, characterized in that said differential oscillating link (25) is also articulated with a differential adjustment assembly (32) to adjust the differential quantity of said differential tooth (1) driven by said differential adjustment assembly (32).
10. The sewing apparatus of claim 1, further comprising:
the needle pitch adjusting crank (13), the needle pitch adjusting crank (13) is fixedly connected with the needle pitch adjusting shaft (9);
the needle pitch adjusting rod (14) penetrates through the needle pitch adjusting crank (13) and can move relative to the needle pitch adjusting crank (13);
the needle distance limiting block (12), the needle distance limiting block (12) is in threaded connection with the needle distance adjusting rod (14), and the position of the needle distance limiting block (12) on the needle distance adjusting rod (14) is adjustable;
the needle pitch resetting component is connected with the needle pitch adjusting crank (13) and applies acting force which is tightly propped against the needle pitch limiting block (12) to the needle pitch adjusting crank (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120943610.0U CN215251594U (en) | 2021-04-28 | 2021-04-28 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120943610.0U CN215251594U (en) | 2021-04-28 | 2021-04-28 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215251594U true CN215251594U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120943610.0U Active CN215251594U (en) | 2021-04-28 | 2021-04-28 | Sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN215251594U (en) |
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2021
- 2021-04-28 CN CN202120943610.0U patent/CN215251594U/en active Active
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: JACK SEWING MACHINE Co.,Ltd. |