CN108611769B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN108611769B CN108611769B CN201810699812.8A CN201810699812A CN108611769B CN 108611769 B CN108611769 B CN 108611769B CN 201810699812 A CN201810699812 A CN 201810699812A CN 108611769 B CN108611769 B CN 108611769B
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- Prior art keywords
- backstitch
- connecting rod
- crank
- wrench
- shaft
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- 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
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/14—Devices for changing speed or for reversing direction of rotation
- D05B69/16—Devices for changing speed or for reversing direction of rotation mechanical
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention belongs to the technical field of sewing equipment, in particular to a sewing machine; the backstitch device comprises a needle pitch adjusting stud, an adjuster shaft and a needle pitch adjuster fixed on the adjuster shaft, wherein the upper end of a backstitch connecting rod is connected to the needle pitch adjuster, the lower end of the backstitch connecting rod is connected to a swing seat, the swing seat is arranged on a bottom plate in a swinging mode through two positioning pins, a sliding groove is formed in the middle of the backstitch connecting rod, one end of a backstitch wrench crank is connected with the sliding groove in a sliding mode, the other end of the backstitch wrench crank is connected with a backstitch wrench shaft, the backstitch wrench shaft is connected with a backstitch electromagnet through a backstitch electromagnet crank, the backstitch electromagnet drives the backstitch wrench shaft to rotate, and the middle of the backstitch connecting rod or the; the invention simplifies the transmission chain of the forward and backward sewing mechanism, simplifies the complex part design and reduces the processing cost of parts.
Description
The technical field is as follows:
the invention belongs to the technical field of sewing equipment, and particularly relates to a sewing machine.
Background art:
in a flat seaming machine, backstitches are often used to reinforce the material during the initial and final stages of the seam. The conventional sewing machine stitch length forward and backward sewing switching structure is as follows (as shown in figures 1-4): including gauge needle adjusting stud 1, regulator axle 2 and fix gauge needle regulator 3 on regulator axle 2, gauge needle regulator 3 is including main part 4, be provided with V type groove 5 in the one end of main part 4, be provided with the crank portion 7 of being connected with the upper end of backfeeding connecting rod 6 at the other end of main part 4, the lower extreme of main part 4 between V type groove 5 and crank portion 7 is provided with fork 8, be provided with spout 9 at fork 8, be provided with backstitch crank 11 on backstitch trigger axle 10, be provided with backstitch crank pin 12 on the backstitch crank 11, backstitch crank pin 12 sets up in gauge needle regulator 3's spout 9, still be provided with on backstitch crank 11 and be used for hanging the extension spring connecting portion 13 of establishing extension spring 14 that resets, the one end of extension spring 14 is hung and is established on extension spring connecting portion 13, the other end sets firmly on bottom plate 15. The lower end of the material reversing and feeding connecting rod 6 is connected with a swing seat 16, the swing seat 16 is rotatably connected on the bottom plate 15 through a left pin and a right pin, and the swing seat 16, the long swing plate, the short swing plate and the material reversing and feeding connecting rod 17 transmit the driving force of an upper shaft 18 to a feeding shaft 19. The backstitch wrench shaft 10 is connected with a backstitch electromagnet 20.
From the above, the needle pitch regulator 3 and the backstitch crank 11 in the existing structure have complex structures, high processing cost, redundant transmission chains in the whole structure and complex structures.
The invention content is as follows:
the invention aims to provide a sewing machine which simplifies a part structure and a needle pitch forward and backward sewing switching structure.
The invention is realized by the following steps:
the utility model provides a sewing machine, includes gauge needle adjusting stud, regulator axle and fixes the gauge needle regulator on the regulator axle, the upper end of back feed connecting rod is connected on the gauge needle regulator, the lower extreme of back feed connecting rod is connected on swing seat, swing seat sets up on the bottom plate through two locating pins swings, is provided with the spout at the middle part of back feed connecting rod, back stitch spanner articulate one end and spout sliding connection, the other end is connected with the backstitch spanner axle, the backstitch spanner axle passes through backstitch electromagnet crank and is connected with the backstitch electro-magnet to by backstitch electro-magnet drive backstitch spanner axle rotation, the middle part of back feed connecting rod or the middle part of backstitch spanner crank are connected with the bottom plate through the extension spring that resets.
In foretell sewing machine, backstitch spanner articulate one end is provided with the backstitch crank pin, and backstitch spanner crank passes through the backstitch crank pin to be connected with the spout, but backstitch crank pin and spout mutual slip.
In the sewing machine, one end of the backstitch wrench crank is provided with a backstitch crank pin hole, one end of the backstitch crank pin is connected with the backstitch crank pin hole in an interference fit mode, and the other end of the backstitch crank pin is arranged in a sliding groove of the backstitch wrench.
In the sewing machine, a slider is connected to one end of the backstitch wrench crank and the side face adjacent to the reverse feeding connecting rod through a slider pin, the slider is arranged in a sliding groove of the reverse feeding connecting rod, the slider and the sliding groove can slide mutually, and the slider is limited in the axis direction of the slider pin through the head of the slider pin and the reverse feeding connecting rod.
In the sewing machine, a mounting hole is formed in one end of the needle pitch regulator, a through hole is formed in the upper end of the material reversing and feeding connecting rod, the upper end of the material reversing and feeding connecting rod penetrates through the mounting hole through an eccentric pin and is connected with the needle pitch regulator through the through hole, and the eccentric pin is fixed on the needle pitch regulator through a screw arranged along the radial direction of the mounting hole.
In the sewing machine, the middle part of the back feeding connecting rod extends outwards towards the left side or the right side to form an upper extending plate and a lower extending plate, and a sliding groove is formed between the upper extending plate and the lower extending plate.
In the sewing machine, the swing seat is U-shaped, the inner walls of the outer ends of the two arms of the swing seat are respectively connected with the outer ends of the short swing plates, the inner ends of the two long swing plates are arranged between the inner ends of the two short swing plates, the lower end of the cloth feeding connecting rod is arranged between the inner ends of the two long swing plates, the lower end of the cloth feeding connecting rod, the inner ends of the two short swing plates and the inner ends of the two long swing plates are all fixedly arranged on the same mounting shaft, the upper end of the cloth feeding connecting rod is connected with the upper shaft, the outer ends of the two long swing plates are connected with the feeding shaft through the feeding shaft crank, and the driving force of the upper shaft is transmitted to the feeding shaft through the inverted feeding connecting rod, the swing seat, the long swing plates.
Compared with the prior art, the invention has the outstanding advantages that:
the invention simplifies the transmission chain of the forward and backward sewing mechanism, simplifies the complex part design and reduces the processing cost of parts.
Description of the drawings:
FIG. 1 is a schematic diagram of the background art;
FIG. 2 is a schematic view of a background art backstitch wrench crank;
FIG. 3 is a schematic diagram of a prior art gauge adjuster;
FIG. 4 is a schematic diagram of a background art mechanism;
FIG. 5 is a schematic perspective view of one of the structures of the present invention;
FIG. 6 is a front view of one of the structures of the present invention;
FIG. 7 is a front elevational view of a partial assembly of components of one of the structures of the present invention;
FIG. 8 is a left side elevational view of a partial component assembly of one of the structures of the present invention;
FIG. 9 is a schematic view of the gauge adjuster of the present invention;
FIG. 10 is a schematic view of the reverse feed linkage of the present invention;
FIG. 11 is a schematic view of the swing seat of the present invention;
FIG. 12 is a schematic diagram of the mechanism of the present invention;
FIG. 13 is a schematic perspective view of another configuration of the present invention;
FIG. 14 is a perspective view of a partial component assembly of another construction of the present invention;
FIG. 15 is a schematic view of the present invention slider disposed on the backstitch wrench crank via a slider pin;
FIG. 16 is an exploded view of the present invention slider disposed on the backstitch wrench crank by a slider pin;
FIG. 17 is a schematic view of the eccentric pin of the present invention.
In FIGS. 1-4: 1. a needle pitch adjusting stud; 2. a regulator shaft; 3. a needle pitch adjuster; 4. a main body; 5. a V-shaped groove; 6. a material reversing connecting rod; 7. a crank portion; 8. a fork portion; 9. a chute; 10. backstitch wrench shaft; 11. backstitch wrench cranks; 12. backstitch crank pin; 13. a tension spring connecting part; 14. a return tension spring; 15. a base plate; 16. a swing seat; 17. a material reversing connecting rod; 18. an upper shaft; 19. a feed shaft; 20. backstitch electromagnet.
In FIGS. 5-15: 21. a needle pitch adjusting stud; 22. a regulator shaft; 23. a needle pitch adjuster; 24. a material reversing connecting rod; 25. a swing seat; 26. positioning pins; 27. a chute; 28. backstitch wrench cranks; 29. backstitch wrench shaft; 30. backstitch electromagnet crank; 31. backstitch electromagnets; 32. a return tension spring; 33. hanging holes; 34. backstitch crank pin; 35. a slider pin; 36. a slider; 37. a head portion; 38. mounting holes; 39. an eccentric pin; 40. an eccentric pin head; 41. a first pin shaft; 42. a second pin shaft; 43. an upper extension plate; 44. a lower extension plate; 45. backstitch electromagnet connecting rods; 46. a support arm; 47. a short swing plate; 48. a long swing plate; 49. a cloth feeding connecting rod; 50. an upper shaft; 51. a feed shaft crank; 52. a feeding shaft.
The specific implementation mode is as follows:
the invention is further described below in specific embodiments, with reference to fig. 5-17:
a sewing machine includes a needle pitch adjusting stud 21, an adjuster shaft 22, and a needle pitch adjuster 23 fixed to the adjuster shaft 22. The adjusting stud 21 is rotatably mounted in a housing (not shown) by means of a screw thread for limiting the needle gage adjuster 23. The regulator shaft 22 is rotatably arranged in the casing, and the needle pitch regulator 23 is fixedly connected with the regulator shaft 22 and can synchronously rotate along with the regulator shaft 22. The upper end of a reverse feeding connecting rod 24 is connected to the needle pitch regulator 23, the lower end of the reverse feeding connecting rod 24 is connected to a swing seat 25, the swing seat 25 is arranged on a bottom plate (not shown) in a swing mode through two positioning pins 26, a sliding groove 27 is formed in the middle of the reverse feeding connecting rod 24, one end of a reverse sewing wrench crank 28 is movably connected with the sliding groove 27, the other end of the reverse sewing wrench crank is connected with a reverse sewing wrench shaft 29, the reverse sewing wrench shaft 29 is connected with a reverse sewing electromagnet 31 through a reverse sewing electromagnet crank 30, the reverse sewing wrench shaft 29 is driven to rotate by the reverse sewing electromagnet 31, and the middle of the reverse feeding connecting rod 24 or the middle of the reverse sewing wrench crank 28 is connected with the bottom plate through a reset tension spring 32. In actual use, the specific position of the return tension spring 32 connected to the bottom plate depends on the space. The backstitch wrench shaft 29 is rotatably arranged in the machine shell, and a backstitch electromagnet 31 is fixedly arranged in the machine shell.
When the reset tension spring 32 is arranged in the middle of the material reversing and feeding connecting rod 24, a hanging hole 33 is arranged in the middle of the material reversing and feeding connecting rod 24, and one end of the reset tension spring 32 is hung in the hanging hole 33; when the return tension spring 32 is arranged in the middle of the backstitch wrench crank 28, a spring pin is arranged in the middle of the backstitch wrench crank 28, and one end of the return tension spring 32 is hung on the spring pin.
As shown in fig. 5, 6, 7 and 8, one embodiment of the invention in which one end of the backstitch wrench crank 28 is slidably connected to the slide groove 27 is as follows: backstitch spanner crank 28's one end is provided with backstitch crank pin 34, and backstitch spanner crank 28 passes through backstitch crank pin 34 to be connected with spout 27, and backstitch crank pin 34 and spout 27 can slide each other.
Specifically, one end of the backstitch wrench crank 28 is provided with a backstitch crank pin hole, one end of the backstitch crank pin 34 is connected with the backstitch crank pin hole in an interference fit manner, and the other end is arranged in the chute 27 of the material reversing connecting rod 24.
Of course, the backstitch crank pin 34 may be fixed by a screw connection, welding, glue, etc. instead of the interference fit plug connection.
When the backstitch wrench crank 28 is driven by the backstitch electromagnet 31 to lift the backstitch connecting rod 24, the backstitch crank pin 34 slides in the chute 27 of the backstitch connecting rod 24.
As shown in fig. 12-15, another embodiment of the present invention in which one end of the backstitch wrench crank 28 is slidably connected to the slide slot 27 is as follows: the side surface of one end of the backstitch wrench crank 28 adjacent to the material reversing connecting rod 24 is connected with a sliding block 36 through a sliding block pin 35, the sliding block 36 is arranged in the sliding groove 27 of the material reversing connecting rod 24, the sliding block 36 and the sliding groove 27 can slide mutually, and the sliding block 36 limits the sliding block 36 in the axial direction of the sliding block pin 35 through the head 37 of the sliding block pin 35 and the material reversing connecting rod 24.
When the backstitch wrench crank 28 is driven by the backstitch electromagnet 31 to lift the backstitch connecting rod 24, the sliding block 36 slides in the sliding groove 27 of the backstitch connecting rod 24, so that the friction resistance can be effectively reduced.
Further, as shown in fig. 9, one end of the gauge adjuster 23 is provided with a mounting hole 38, the upper end of the material reversing link 24 is provided with a through hole, the upper end of the material reversing link 24 passes through the mounting hole 38 and is connected with the gauge adjuster 23 through an eccentric pin 39, and the eccentric pin 39 is fixed on the gauge adjuster 23 through a screw arranged along the radial direction of the mounting hole 38. Compared with the existing needle pitch regulator 23, the structure of the needle pitch regulator 23 of the invention simplifies the structure, reduces the processing difficulty and reduces the processing cost.
As shown in fig. 17, the eccentric pin 39 according to the present invention includes an eccentric pin head 40, a first pin 41 is disposed in the center of one end surface of the eccentric pin head 40, a second pin 42 is disposed on the outer end surface of the first pin 41, the upper end of the material reversing connection rod 24 is disposed on the first pin 41, the second pin 42 is inserted into the mounting hole 38 of the needle pitch adjuster 23, and the second pin 42 is fixedly connected to the needle pitch adjuster 23 by a screw. The eccentricity between the axes of the first pin shaft 41 and the second pin shaft 42 is designed according to actual conditions, and the eccentricity is 0.7 ± 0.015mm in this embodiment.
Further, as shown in fig. 10, the middle portion of the material pouring link 24 according to the present invention is provided with an upper extension plate 43 and a lower extension plate 44 extending outward in the right direction, and a chute 27 is formed between the upper extension plate 43 and the lower extension plate 44.
Compared with the existing design, the invention also simplifies the structure of the backstitch wrench crank 28, simplifies the structure, reduces the processing difficulty and reduces the processing cost.
Further, the iron core of the backstitch electromagnet 31 is hinged with the backstitch electromagnet crank 30 through a backstitch electromagnet connecting rod 45. The backstitch electromagnet crank 30 and the backstitch wrench crank 28 are fixed on the backstitch wrench shaft 29 at a fixed angle with each other.
The backstitch electromagnet 31 of the present invention may be replaced with an air cylinder, an electric push rod, or the like.
In addition, the swing seat 25 of the invention is U-shaped, the inner walls of the outer ends of the two arms 46 of the swing seat 25 are respectively hinged with the outer ends of the short swing plates 47, the inner ends of the two long swing plates 48 are arranged between the inner ends of the two short swing plates 47, the lower end of the cloth feeding connecting rod 49 is arranged between the inner ends of the two long swing plates 48, the lower end of the cloth feeding connecting rod 49, the inner ends of the two short swing plates 47 and the inner ends of the two long swing plates 48 are all fixedly arranged on the same mounting shaft, the upper end of the cloth feeding connecting rod 49 is connected with the upper shaft 50, the outer ends of the two long swing plates 48 are connected with the feeding shaft 52 through the feeding shaft crank 51, and the driving force of the upper shaft 50 is transmitted to the feeding shaft 52 through the cloth feeding connecting rod 49, the swing seat 25, the.
The working principle of the invention is as follows:
1. during normal sewing, the backstitch electromagnet 31 is in a power-off state, the reset tension spring 32 applies a downward pulling force to the backstitch connecting rod 24, the backstitch connecting rod 24 drives the needle pitch adjuster 23 to rotate around the adjuster shaft 22 until the lower surface of a V-shaped groove on the needle pitch adjuster 23 is abutted and limited with the needle pitch adjusting stud 21, and the axial position of the needle pitch adjusting stud 21 is the current needle pitch. The specific principle is the same as that of the needle pitch adjusting mechanism of the existing flat sewing machine, and the detailed description is omitted.
2. When the backstitch is automatically switched, the backstitch electromagnet 31 is electrified, the iron core of the backstitch electromagnet 31 pushes the backstitch electromagnet connecting rod 45 leftwards, and meanwhile, the backstitch electromagnet connecting rod 45 acts on the backstitch electromagnet crank 30, so that the backstitch electromagnet crank 30 rotates by taking the backstitch wrench shaft 28 as an axis, and the backstitch electromagnet crank 30 rotates to drive the backstitch wrench crank 28 fixed on the backstitch wrench shaft 28 to rotate. At this time, the backstitch crank pin 34 or the slider 36 on the backstitch wrench crank 28, which is matched with the backstitch connecting rod 24, drives the backstitch connecting rod 24 to move upwards, so as to drive the needle pitch adjuster 23 to rotate around the adjuster shaft 22 until the upper surface of the V-shaped groove of the needle pitch adjuster upper 23 is abutted against the needle pitch adjusting stud 21. The above-mentioned complete process has realized the automatic switch-over of a certain stitch length of positive sewing to the corresponding stitch length of backstitch.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a sewing machine, includes gauge needle regulation double-screw bolt (21), regulator axle (22) and fixes gauge needle regulator (23) on regulator axle (22), its characterized in that: the upper end of a reverse feeding connecting rod (24) is connected to a needle pitch regulator (23), the lower end of the reverse feeding connecting rod (24) is connected to a swinging seat (25), the swinging seat (25) is arranged on a bottom plate in a swinging mode through two positioning pins (26), a sliding groove (27) is formed in the middle of the reverse feeding connecting rod (24), one end of a reverse sewing wrench crank (28) is connected with the sliding groove (27) in a sliding mode, the other end of the reverse sewing wrench crank is connected with a reverse sewing wrench shaft (29), the reverse sewing wrench shaft (29) is connected with a reverse sewing electromagnet (31) through a reverse sewing electromagnet crank (30), the reverse sewing wrench shaft (29) is driven to rotate by the reverse sewing electromagnet (31), and the middle of the reverse feeding connecting rod (24) or the middle of the reverse sewing wrench crank (28) is connected with the bottom plate through a reset tension spring (32); during normal sewing, the backstitch electromagnet (31) is in a power-off state, the reset tension spring (32) applies a downward pulling force to the backstitch connecting rod (24), the backstitch connecting rod (24) drives the needle pitch regulator (23) to rotate around the regulator shaft (22) until the lower surface of a V-shaped groove on the needle pitch regulator (23) is abutted and limited with the needle pitch regulating stud (21), and the axial position of the needle pitch regulating stud (21) is the current needle pitch; when automatic switch backstitch, backstitch electro-magnet (31) circular telegram, backstitch electro-magnet (31) drive backstitch electro-magnet crank (30) use backstitch spanner axle (29) to rotate as the axle center, and then drive backstitch spanner crank (28) and rotate, backstitch spanner crank (28) drive reverse feeding connecting rod (24) upward movement, and then drive gauge needle regulator (23) and rotate around regulator axle (22), until V type groove upper surface and gauge needle on gauge needle regulator (23) adjust double-screw bolt (21) butt, realized that a certain gauge needle of forward sewing is to the automatic switch-over of the corresponding gauge needle of backstitch.
2. A sewing machine according to claim 1, wherein: one end of the backstitch wrench crank (28) is provided with a backstitch crank pin (34), the backstitch wrench crank (28) is connected with the sliding groove (27) through the backstitch crank pin (34), and the backstitch crank pin (34) and the sliding groove (27) can slide mutually.
3. A sewing machine according to claim 2, wherein: one end of the backstitch wrench crank (28) is provided with a backstitch crank pin hole, one end of the backstitch crank pin (34) is connected with the backstitch crank pin hole in an interference fit mode, and the other end of the backstitch crank pin is arranged in a sliding groove (27) of the backstitch wrench.
4. A sewing machine according to claim 1, wherein: one end of the backstitch wrench crank (28) is connected with a sliding block (36) through a sliding block pin (35) on the side face adjacent to the material reversing and feeding connecting rod (24), the sliding block (36) is arranged in a sliding groove (27) of the material reversing and feeding connecting rod (24), the sliding block (36) and the sliding groove (27) can slide mutually, and the sliding block (36) limits the sliding block (36) in the axis direction of the sliding block pin (35) through the head portion (37) of the sliding block pin (35) and the material reversing and feeding connecting rod (24).
5. A sewing machine according to claim 1, wherein: one end of the needle pitch regulator (23) is provided with a mounting hole (38), the upper end of the material reversing and feeding connecting rod (24) is provided with a through hole, the upper end of the material reversing and feeding connecting rod (24) penetrates through the mounting hole (38) through an eccentric pin (39) to be connected with the needle pitch regulator (23) through the through hole, and the eccentric pin (39) is fixed on the needle pitch regulator (23) through a screw arranged along the radial direction of the mounting hole (38).
6. A sewing machine according to claim 1, wherein: the middle part of the material pouring and feeding connecting rod (24) extends outwards towards the left side or the right side to form an upper extending plate (43) and a lower extending plate (44), and a sliding groove (27) is formed between the upper extending plate (43) and the lower extending plate (44).
7. A sewing machine according to claim 1, wherein: the swing seat (25) is U-shaped, the inner walls of the outer ends of two arms (46) of the swing seat (25) are respectively connected with the outer ends of the short swing plates (47), the inner ends of the two long swing plates (48) are arranged between the inner ends of the two short swing plates (47), the lower end of the cloth feeding connecting rod is arranged between the inner ends of the two long swing plates (48), the lower end of the cloth feeding connecting rod, the inner ends of the two short swing plates (47) and the inner ends of the two long swing plates (48) are fixedly arranged on the same mounting shaft, the upper end of the cloth feeding connecting rod is connected with the upper shaft (50), the outer ends of the two long swing plates (48) are connected with the feeding shaft (52) through a feeding shaft crank (51), and the driving force of the upper shaft (50) is transmitted to the feeding shaft (52) through the inverted feeding connecting rod (24), the swing seat (25), the long swing plates (48) and the short swing plates (.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699812.8A CN108611769B (en) | 2018-06-29 | 2018-06-29 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699812.8A CN108611769B (en) | 2018-06-29 | 2018-06-29 | Sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108611769A CN108611769A (en) | 2018-10-02 |
| CN108611769B true CN108611769B (en) | 2021-04-02 |
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ID=63665817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810699812.8A Active CN108611769B (en) | 2018-06-29 | 2018-06-29 | Sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN108611769B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235766B (en) * | 2018-11-29 | 2021-06-29 | 高林股份有限公司 | Close-sewing device for chain-stitch sewing machine |
| CN109594208A (en) * | 2019-01-14 | 2019-04-09 | 安徽杰羽制鞋机械科技有限公司 | A kind of needle gage of sewing machine adjusts and falls automatically feeding structure |
| CN109518364A (en) * | 2019-01-14 | 2019-03-26 | 安徽杰羽制鞋机械科技有限公司 | A kind of needle gage of sewing machine adjusts and falls automatically feeding structure |
| CN109868577B (en) * | 2019-03-05 | 2021-04-02 | 杰克缝纫机股份有限公司 | Backstitch structure of sewing machine |
| CN109898245A (en) * | 2019-04-02 | 2019-06-18 | 浙江美机缝纫机有限公司 | A kind of needle gage adjustment structure of sewing machine |
| CN109989184B (en) * | 2019-04-25 | 2021-09-28 | 杰克缝纫机股份有限公司 | Backstitch adjusting mechanism and sewing machine using same |
| CN112626728B (en) * | 2019-09-24 | 2022-07-05 | 杰克科技股份有限公司 | Sewing machine |
| CN110923964B (en) * | 2019-12-27 | 2021-07-23 | 杰克缝纫机股份有限公司 | Needle pitch adjusting mechanism based on arc stepping motor and sewing machine |
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| CN104233644A (en) * | 2014-09-02 | 2014-12-24 | 蔡金财 | Sewing machine for up-down differential feeding |
| CN206580985U (en) * | 2017-03-25 | 2017-10-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000051557A (en) * | 1998-08-07 | 2000-02-22 | Juki Corp | Cloth feeding device for sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06292778A (en) * | 1993-04-08 | 1994-10-21 | Brother Ind Ltd | Sewing machine |
| JPH0871286A (en) * | 1994-09-08 | 1996-03-19 | Brother Ind Ltd | Silencing structure for sewing machine |
| CN2578365Y (en) * | 2002-08-12 | 2003-10-08 | 上工股份有限公司 | Feeding needle distance regulator |
| CN2584626Y (en) * | 2002-09-18 | 2003-11-05 | 上海宝狮缝纫机有限公司 | Device for adjusting length of stitch for forward-backward feeding mechanism of sewing machine |
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| CN104233644A (en) * | 2014-09-02 | 2014-12-24 | 蔡金财 | Sewing machine for up-down differential feeding |
| CN206580985U (en) * | 2017-03-25 | 2017-10-24 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
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| Publication number | Publication date |
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| CN108611769A (en) | 2018-10-02 |
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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: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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