CN215103871U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN215103871U CN215103871U CN202120309162.9U CN202120309162U CN215103871U CN 215103871 U CN215103871 U CN 215103871U CN 202120309162 U CN202120309162 U CN 202120309162U CN 215103871 U CN215103871 U CN 215103871U
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Abstract
The utility model provides a sewing machine belongs to sewing machine equipment technical field. The sewing machine comprises a main feeding mechanism and a differential mechanism, the main feeding mechanism comprises a main shaft, a main feeding shaft and a first stepping motor, the main shaft is connected with a main feeding tooth rack, a main feeding tooth is arranged on the main feeding tooth rack, a main feeding tooth transmission assembly is connected between the first stepping motor and the main feeding tooth rack, the differential mechanism comprises a differential shaft and a second stepping motor, a third differential connecting rod is connected onto the differential shaft, one end of the third differential connecting rod is connected with the differential tooth rack, differential teeth are arranged on the differential tooth rack, and a differential tooth transmission assembly is connected between the second stepping motor and the differential shaft. According to the sewing machine, the stroke of the main feeding tooth and the stroke of the differential tooth are respectively controlled through the first stepping motor and the second stepping motor, so that an operator can easily adjust the needle pitch and the differential size, and the operation convenience is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of sewing machine equipment, a sewing machine is related to.
Background
At present, the stitch length and the differential motion of the flat seaming machine are manually adjusted, when fabrics are switched in batches in a factory, each sewing machine needs to be adjusted, the operation is very complicated, and due to the fact that a plurality of lathes do not know the corresponding adjusting method, the differential motion adjustment is also a decoration, and therefore the sewing effect of certain fabrics is poor.
Disclosure of Invention
The utility model discloses to the above-mentioned problem that prior art exists, provide a sewing machine, the utility model aims to solve the technical problem that: how to conveniently adjust the needle pitch and the differential size.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a sewing machine, a serial communication port, sewing machine includes that the owner send the mechanism, the owner send the mechanism to include main shaft, owner send axle and step motor one, be connected with owner on the main shaft and send the dental framework, the owner is provided with owner on sending the dental framework and send the tooth, step motor one and owner send to be connected with owner between the dental framework and send tooth transmission assembly, sewing machine still includes differential mechanism, differential mechanism includes differential shaft and step motor two, be connected with differential connecting rod three on the differential shaft, the one end of differential connecting rod three is connected with differential dental framework, is provided with differential tooth on the differential dental framework, be connected with differential tooth transmission assembly between step motor two and the differential shaft.
The working principle is as follows: the main feeding mechanism of the sewing machine comprises a main shaft, the rotation of the main shaft can be converted into the swing of the main feeding shaft, and then the main feeding rack is driven to move back and forth through a main feeding connecting rod III, so that the main feeding rack is driven to move back and forth. In the sewing machine, the stroke of the main feed gear is controlled by the first stepping motor and the main feed gear transmission assembly, the stroke of the differential gear is controlled by the second stepping motor and the differential gear transmission assembly, and the operation panel is combined, so that an operator can easily adjust the needle pitch and the differential gear, the operation convenience is greatly improved, and the needle pitch and the differential gear have the function of electronic adjustment.
In the sewing machine, the main feed dog transmission assembly comprises a first eccentric wheel which is fixed on an output shaft of a first stepping motor, a first main conveying adjusting connecting rod is connected to the first eccentric wheel, one end of the first main conveying adjusting connecting rod is connected with a first main conveying adjusting connecting rod, a main feeding adjusting shaft is fixed on the first main feeding adjusting connecting rod, a main feeding adjusting crank is fixed on the main feeding adjusting shaft, the main feeding adjusting crank is connected with a main feeding connecting rod IV, the main feeding connecting rod IV is connected with a main feeding connecting rod I, the main shaft is sleeved with an eccentric sleeve, the first main feeding connecting rod is sleeved and fixed on the eccentric sleeve, the first main feeding connecting rod is connected with a second main feeding connecting rod, one end of the second main conveying connecting rod is connected with a main conveying crank, the main conveying crank is fixed on a main conveying shaft, a third main conveying connecting rod is connected to the main conveying shaft, and the third main conveying connecting rod is hinged to the main conveying tooth frame.
The other end of the main feeding connecting rod IV is connected with a main feeding adjusting crank, a main feeding adjusting shaft is fastened on the main feeding adjusting crank, and a main feeding adjusting connecting rod I is fixed on the main feeding adjusting shaft and connected with a main feeding adjusting connecting rod II; the first eccentric wheel is fixed on an output shaft of the first stepping motor and matched with the second main feeding adjusting connecting rod, when the first stepping motor rotates, the first eccentric wheel can be driven to rotate, so that the second main feeding adjusting connecting rod is driven to drive the second main feeding adjusting shaft to swing, the four positions of the first main feeding connecting rod are changed by the swing of the first main feeding adjusting shaft, the position of the first main feeding connecting rod is influenced, the stroke of the front and back movement of the main feeding tooth is changed, and the adjustment of the needle pitch is conveniently realized.
This sewing machine passes through the stroke that step motor one control owner sent the tooth, can automatically regulated gauge needle, combines operating panel, and operating personnel can be relaxed adjusts the gauge needle, the convenience of very big improvement operation.
In the sewing machine, the main feeding mechanism further comprises a feed lifting tooth driving shaft, a feed lifting tooth driving connecting rod is connected to the feed lifting tooth driving connecting rod, a feed lifting tooth crank is connected to the feed lifting tooth driving connecting rod, a feed lifting tooth shaft is fixed to the feed lifting tooth crank, a first crank is connected to one end of the pressure lifting shaft, and the first crank is fixed to the main feed tooth frame.
In the structure, the rotation of the tooth lifting driving shaft can be finally converted into the swing of the tooth lifting shaft, so that the up-and-down motion of teeth is driven; in addition, the rotation of the spindle can drive the teeth to move up and down due to the eccentric structure at the end part of the spindle.
In the sewing machine, a first clamp spring is clamped on an output shaft of the first stepping motor, and the first clamp spring is located on the outer side of the second main feeding adjusting connecting rod and is abutted against the second main feeding adjusting connecting rod.
In the structure, the clamp spring I can limit the main feeding adjusting connecting rod II, so that the main feeding adjusting connecting rod II is prevented from generating displacement in the axial direction of the output shaft, and the transmission stability is ensured.
In foretell sewing machine, be fixed with the gauge needle indicator board on the main regulating spindle that send, be fixed with gauge needle scale plate and hall sensor on sewing machine's the casing, go up the gauge needle indicator board and be located between gauge needle scale plate and hall sensor, be fixed with the magnet steel on the gauge needle indicator board.
The gauge needle indicator board is fixed on the main regulating spindle that send, the gauge needle scale plate is fixed on sewing machine, be used for showing the gauge needle size, can fix the gauge needle indicator board through lock nut, the magnet steel is fixed on the gauge needle indicator board, hall sensor fixes on the casing, when the upper and lower position of adjusting the gauge needle indicator board changes the gauge needle size, the magnet steel also follows position change from top to bottom, thereby make the relative position of hall sensor and magnet steel change, hall sensor can be to the different magnitude of voltage of automatically controlled output, automatically controlled can judge the size of gauge needle this moment according to the magnitude of voltage.
In this embodiment, the needle pitch may also be manually adjusted, and after the needle pitch is manually adjusted, the electronic control detects the size of the needle pitch at that time, and controls the size of the differential according to the differential ratio set by the user, thereby realizing that the differential changes according to the change of the needle pitch.
In the sewing machine, the differential mechanism further comprises a first differential connecting rod and a differential adjusting shaft, the differential tooth transmission assembly comprises a second eccentric wheel which is fixed on an output shaft of the second stepping motor, a second differential adjusting connecting rod is connected to the second eccentric wheel, one end of the second differential adjusting connecting rod is connected with a first differential adjusting connecting rod, the first differential adjusting connecting rod is fixed on a differential adjusting shaft, a differential adjusting crank is fixed on the differential adjusting shaft, the differential adjusting crank is connected with a differential connecting rod IV, one end of the differential connecting rod I is connected with the eccentric sleeve, the other end of the differential connecting rod I is connected with a differential connecting rod II and a differential connecting rod IV, one end of the differential connecting rod II is connected with a differential crank which is fixed on the differential shaft.
In the structure, an eccentric sleeve is fixed on a main shaft, one end of a differential connecting rod is matched with the eccentric sleeve, the other end of the differential connecting rod is matched with a differential connecting rod II and a differential connecting rod IV, the other end of the differential connecting rod II is matched with a differential crank, the differential crank is fastened on a differential shaft, the differential shaft is connected with a differential connecting rod III, and the differential connecting rod III is connected with a differential tooth rack, so that the rotation of the main shaft can be converted into the swing of the differential shaft, and the differential tooth rack is driven to move back and forth through the differential connecting rod III, so that the differential tooth is driven to move back and forth.
One end of the differential connecting rod IV is connected with the differential adjusting crank, the differential adjusting shaft is fastened on the differential adjusting crank, and the differential adjusting connecting rod I is fixed on the differential adjusting shaft and connected with the differential adjusting connecting rod II; when the second stepping motor rotates, the second eccentric wheel is driven to rotate, so that the second differential adjusting connecting rod is driven to drive the differential adjusting shaft to swing, the differential adjusting shaft swings to change the four positions of the differential connecting rod, the position of the differential connecting rod is influenced, the stroke of the differential tooth in forward and backward movement is changed, the adjustment of the differential size is realized, and the cloth sewing quality is improved.
In the sewing machine, the output shaft of the second stepping motor is clamped with the second snap spring, and the second snap spring is located on the outer side of the second differential adjusting connecting rod and is abutted against the second differential adjusting connecting rod.
In the structure, the clamp spring II can limit the differential adjusting connecting rod II, so that the differential adjusting connecting rod II is prevented from generating displacement in the axial direction of the output shaft, and the transmission stability is ensured.
Compared with the prior art, the utility model has the advantages as follows:
1. according to the sewing machine, the stroke of the main feeding tooth and the stroke of the differential tooth are respectively controlled through the first stepping motor and the second stepping motor, and the operation panel is combined, so that an operator can easily adjust the needle pitch and the differential size, the operation convenience is greatly improved, and the needle pitch and the differential function of electronic adjustment are achieved.
2. After the needle pitch is manually adjusted, the electric control can detect the size of the needle pitch, and then the size of the differential motion is controlled according to the differential motion ratio set by a user, so that the differential motion is changed according to the change of the needle pitch.
Drawings
FIG. 1 is a schematic view of the connection between the main feed mechanism and the differential mechanism;
FIG. 2 is a schematic view of the main feed mechanism;
FIG. 3 is a schematic structural view of the differential mechanism;
FIG. 4 is a schematic view of the mechanism from another perspective of the main and differential mechanisms;
FIG. 5 is a schematic view of the structure of the needle gage indicating plate and the needle gage scale plate connected to the main feed adjusting shaft.
In the figure, 1, main shaft; 2. a main feeding shaft; 3. a first stepping motor; 4. a first eccentric wheel; 5. a second main feeding adjusting connecting rod; 6. a first main conveying adjusting connecting rod; 7. a main feed adjustment shaft; 8. a main feeding adjusting crank; 9. a main feeding connecting rod IV; 10. a first main conveying connecting rod; 11. an eccentric sleeve; 12. a second main conveying connecting rod; 13. a main feed crank; 14. a third main feeding connecting rod; 15. a main tooth feeding rack; 16. carrying out primary tooth feeding; 17. a feed lifting drive shaft; 18. the lifting tooth drives the connecting rod; 19. a feed lifting crank; 20. a feed lifting shaft; 21. a first crank; 22. a clamp spring I; 23. a gauge needle indicator board; 24. a needle pitch scale plate; 25. a Hall sensor; 26. magnetic steel; 27. a differential shaft; 28. a differential connecting rod I; 29. a differential adjustment shaft; 30. a second stepping motor; 31. a second eccentric wheel; 32. a second differential adjusting connecting rod; 33. a first differential adjusting connecting rod; 34. a differential adjustment crank; 35. a differential connecting rod IV; 36. a differential crank; 37. a differential connecting rod III; 38. a differential dental articulator; 39. differential teeth; 40. a second clamp spring; 41. locking the nut; 42. a differential connecting rod II; 43. a main conveying mechanism; 44. a differential mechanism.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the sewing machine includes a main feeding mechanism 43, the main feeding mechanism 43 includes a main shaft 1, a main feeding shaft 2 and a first stepping motor 3, the main shaft is connected with a first feeding rack 15, the main feeding rack 15 is provided with a first feeding rack 16, a main feeding rack transmission assembly is connected between the first stepping motor 3 and the first feeding rack 15, the sewing machine further includes a differential mechanism 44, the differential mechanism 44 includes a differential shaft 27 and a second stepping motor 30, the differential shaft 27 is connected with a third differential connecting rod 37, one end of the third differential connecting rod 37 is connected with a differential rack 38, the differential rack 38 is provided with a differential rack 39, and a differential rack transmission assembly is connected between the second stepping motor 30 and the differential shaft 27.
As shown in fig. 2, in the present embodiment, the primary feed drive assembly includes a primary eccentric wheel 4, the primary eccentric wheel 4 is fixed on an output shaft of a first stepper motor 3, a secondary primary feed adjusting connecting rod 5 is connected to the primary eccentric wheel 4, a primary feed adjusting connecting rod 6 is connected to one end of the secondary primary feed adjusting connecting rod 5, a primary feed adjusting shaft 7 is fixed to the primary feed adjusting connecting rod 6, a primary feed adjusting crank 8 is fixed to the primary feed adjusting shaft 7, a primary feed connecting rod four 9 is connected to the primary feed adjusting crank 8, a primary feed connecting rod one 10 is connected to the primary feed connecting rod four 9, an eccentric sleeve 11 is sleeved on the primary shaft 1, the primary feed connecting rod one 10 is sleeved and fixed to the eccentric sleeve 11, a secondary primary feed connecting rod 12 is connected to the primary feed connecting rod one 10, a primary feed crank 13 is connected to one end of the secondary feed connecting rod 12, the primary feed crank 13 is fixed to the primary feed shaft 2, a primary feed connecting rod three 14 is connected to the primary feed shaft 2, and the primary feed connecting rod three 14 is hinged to a primary feed carrier 15.
The main feeding mechanism 43 of the sewing machine comprises a main shaft 1, the rotation of the main shaft 1 can be converted into the swing of a main feeding shaft 2, and then a main feeding connecting rod III 14 drives a main feeding tooth rack 15 to move back and forth, so that a main feeding tooth 16 is driven to move back and forth. When the first stepping motor 3 rotates, the first eccentric wheel 4 is driven to rotate, so that the second main feeding adjusting connecting rod 5 is driven to drive the second main feeding adjusting shaft 7 to swing, the position of the fourth main feeding connecting rod 9 is changed by the swing of the second main feeding adjusting shaft 7, the position of the first main feeding connecting rod 10 is influenced, the stroke of the front and back movement of the first main feeding tooth 16 is changed, and the adjustment of the needle pitch is conveniently realized.
As shown in fig. 2, in this embodiment, the main feeding mechanism 43 further includes a feed lifting teeth driving shaft 17, a feed lifting teeth driving link 18 is connected to the feed lifting teeth driving link 17, a feed lifting teeth crank 19 is connected to the feed lifting teeth driving link 18, a feed lifting teeth shaft 20 is fixed to the feed lifting teeth crank 19, a first crank 21 is connected to one end of the pressure lifting shaft, and the first crank 21 is fixed to the main feed rack 15.
In the structure, the rotation of the tooth lifting driving shaft 17 can be finally converted into the swing of the tooth lifting shaft 206, so that the up-and-down motion of teeth is driven; in addition, the rotation of the main shaft 1 can drive the teeth to move up and down due to the eccentric structure at the end part of the main shaft 1.
As shown in fig. 2, in this embodiment, a first snap spring 22 is clamped on an output shaft of the first stepping motor 3, and the first snap spring 22 is located outside the second main feeding adjusting connecting rod 5 and abuts against the second main feeding adjusting connecting rod 5.
In this structure, jump ring one 22 can send the two 5 of adjusting connecting rod to main spacing, prevents that the main two 5 of adjusting connecting rod from sending and producing the displacement in the axial of output shaft, guarantees driven stability.
As shown in fig. 5, in this embodiment, a needle gauge indicating plate 23 is fixed on the main feeding adjusting shaft 7, a needle gauge scale plate 24 and a hall sensor 25 are fixed on a housing of the sewing machine, the needle gauge indicating plate 23 is located between the needle gauge scale plate 24 and the hall sensor 25, and a magnetic steel 26 is fixed on the needle gauge indicating plate 23.
In this embodiment, the needle pitch may also be manually adjusted, and after the needle pitch is manually adjusted, the electronic control detects the size of the needle pitch at that time, and controls the size of the differential according to the differential ratio set by the user, thereby realizing that the differential changes according to the change of the needle pitch.
As shown in fig. 1 and 3, in the present embodiment, the differential mechanism 44 further includes a first differential connecting rod 28 and a second differential adjusting shaft 29, the differential gearing assembly includes a second eccentric wheel 31, the second eccentric wheel 31 is fixed on the output shaft of the second stepping motor 30, the second eccentric wheel 31 is connected with a second differential adjusting connecting rod 32, one end of the second differential adjusting connecting rod 32 is connected with a first differential adjusting connecting rod 33, the first differential adjusting connecting rod 33 is fixed on the differential adjusting shaft 29, the differential adjusting shaft 29 is fixed with a differential adjusting crank 34, the differential adjusting crank 34 is connected with a fourth differential connecting rod 35, one end of the first differential connecting rod 28 is connected with the eccentric sleeve 11, the other end of the first differential connecting rod 28 is connected with a second differential connecting rod 42 and a fourth differential connecting rod 35, one end of the fourth differential connecting rod 35 is connected with the differential adjusting crank 34, one end of the second differential connecting rod 42 is connected with a differential crank 36, and the differential crank 36 is fixed on the shaft 27.
In the structure, an eccentric sleeve 11 is fixed on a main shaft 1, one end of a differential connecting rod I28 is matched with the eccentric sleeve 11, the other end of the differential connecting rod I is matched with a differential connecting rod II 42 and a differential connecting rod IV 35, the other end of the differential connecting rod II 42 is matched with a differential crank 36, the differential crank 36 is fastened on a differential shaft 27, the differential shaft 27 is connected with a differential connecting rod III 37, and the differential connecting rod III 37 is connected with a differential tooth rack 38, so that the rotation of the main shaft 1 can be converted into the swing of the differential shaft 27, and the differential tooth rack 38 is driven to move back and forth through the differential connecting rod III 37, so that a differential tooth 39 is driven to move back and forth.
One end of the differential connecting rod four 35 is connected with the differential adjusting crank 34, the differential adjusting shaft 29 is fastened on the differential adjusting crank 34, and the differential adjusting connecting rod one 33 is fixed on the differential adjusting shaft 29 and connected with the differential adjusting connecting rod two 32; when the second stepping motor 30 rotates, the second eccentric wheel 31 is driven to rotate, so that the second differential adjusting connecting rod 32 is driven to drive the differential adjusting shaft 29 to swing, the position of the fourth differential connecting rod 35 is changed by swinging the differential adjusting shaft 29, the position of the second differential connecting rod 42 is influenced, the stroke of the forward and backward movement of the differential tooth 39 is changed, the adjustment of the differential size is realized, and the quality of cloth sewing is improved.
According to the sewing machine, the strokes of the main feeding teeth 16 and the differential teeth 39 are respectively controlled through the first stepping motor 3 and the second stepping motor 30, and the operation panel is combined, so that an operator can easily adjust the needle pitch and the differential size, the operation convenience is greatly improved, and the needle pitch and the differential have the electronic adjusting function.
As shown in fig. 3, in the present embodiment, a second snap spring 40 is snapped on an output shaft of the second stepping motor 30, and the second snap spring 40 is located outside the second differential adjusting link 32 and abuts against the second differential adjusting link 32.
In the structure, the clamp spring II 40 can limit the differential adjusting connecting rod II 32, so that the main differential adjusting connecting rod II 32 is prevented from generating displacement in the axial direction of the output shaft, and the transmission stability is ensured.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. A sewing machine, characterized in that it comprises a main feed mechanism (43), the main feeding mechanism (43) comprises a main shaft (1), a main feeding shaft (2) and a first stepping motor (3), a main tooth feeding rack (15) is connected on the main shaft (1), a main tooth feeding (16) is arranged on the main tooth feeding rack (15), a main tooth feeding transmission component is connected between the first stepping motor (3) and the main tooth feeding rack (15), the sewing machine further comprises a differential mechanism (44), the differential mechanism (44) comprises a differential shaft (27) and a second stepping motor (30), a differential connecting rod III (37) is connected on the differential shaft (27), one end of the differential connecting rod III (37) is connected with a differential tooth rack (38), differential teeth (39) are arranged on the differential tooth rack (38), and a differential tooth transmission assembly is connected between the second stepping motor (30) and the differential shaft (27).
2. The sewing machine according to claim 1, wherein the primary feed tooth transmission assembly comprises a primary eccentric wheel (4), the primary eccentric wheel (4) is fixed on an output shaft of a first stepping motor (3), a primary feed adjusting connecting rod (5) is connected to the primary eccentric wheel (4), a primary feed adjusting connecting rod (6) is connected to one end of the primary feed adjusting connecting rod (5), a primary feed adjusting shaft (7) is fixed to the primary feed adjusting connecting rod (6), a primary feed adjusting crank (8) is fixed to the primary feed adjusting shaft (7), a primary feed connecting rod four (9) is connected to the primary feed adjusting crank (8), a primary feed connecting rod one (10) is connected to the primary feed connecting rod four (9), an eccentric sleeve (11) is sleeved on the main shaft (1), and the primary feed connecting rod one (10) is sleeved and fixed on the eccentric sleeve (11), the main feeding connecting rod I (10) is connected with a main feeding connecting rod II (12), one end of the main feeding connecting rod II (12) is connected with a main feeding crank (13), the main feeding crank (13) is fixed on the main feeding shaft (2), the main feeding shaft (2) is connected with a main feeding connecting rod III (14), and the main feeding connecting rod III (14) is hinged with the main feeding tooth rack (15).
3. The sewing machine of claim 1, wherein the main feed mechanism (43) further comprises a feed lifting dog driving shaft (17), a feed lifting dog driving connecting rod (18) is connected to the feed lifting dog driving connecting rod (17), a feed lifting dog crank (19) is connected to the feed lifting dog driving connecting rod (18), a feed lifting dog shaft (20) is fixed to the feed lifting dog crank (19), a first crank (21) is connected to one end of the feed lifting dog shaft (20), and the first crank (21) is fixed to the main feed dog frame (15).
4. The sewing machine according to claim 2, characterized in that a first snap spring (22) is clamped on an output shaft of the first stepping motor (3), and the first snap spring (22) is located on the outer side of the second main feeding adjusting connecting rod (5) and abuts against the second main feeding adjusting connecting rod (5).
5. The sewing machine according to claim 4, characterized in that a needle gauge indicating plate (23) is fixed on the main feed adjusting shaft (7), a needle gauge scale plate (24) and a Hall sensor (25) are fixed on a shell of the sewing machine, the needle gauge indicating plate (23) is positioned between the needle gauge scale plate (24) and the Hall sensor (25), and a magnetic steel (26) is fixed on the needle gauge indicating plate (23).
6. The sewing machine according to claim 1, wherein the differential mechanism (44) further comprises a first differential connecting rod (28) and a differential adjusting shaft (29), the differential gear transmission assembly comprises a second eccentric wheel (31), the second eccentric wheel (31) is fixed on an output shaft of the second stepping motor (30), the second eccentric wheel (31) is connected with a second differential adjusting connecting rod (32), one end of the second differential adjusting connecting rod (32) is connected with a first differential adjusting connecting rod (33), the first differential adjusting connecting rod (33) is fixed on the differential adjusting shaft (29), the differential adjusting shaft (29) is fixed with a second differential adjusting crank (34), the differential adjusting crank (34) is connected with a fourth differential connecting rod (35), one end of the first differential connecting rod (28) is connected with the eccentric sleeve (11), and the other end of the first differential connecting rod (28) is connected with the second differential connecting rod (42) and the fourth differential connecting rod (35), one end of the differential connecting rod four (35) is connected to the differential adjusting crank (34), one end of the differential connecting rod two (42) is connected to the differential crank (36), and the differential crank (36) is fixed on the differential shaft (27).
7. The sewing machine according to claim 6, characterized in that a second snap spring (40) is clamped on an output shaft of the second stepping motor (30), and the second snap spring (40) is located outside the second differential adjusting connecting rod (32) and abuts against the second differential adjusting connecting rod (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120309162.9U CN215103871U (en) | 2021-02-03 | 2021-02-03 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120309162.9U CN215103871U (en) | 2021-02-03 | 2021-02-03 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215103871U true CN215103871U (en) | 2021-12-10 |
Family
ID=79334036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120309162.9U Active CN215103871U (en) | 2021-02-03 | 2021-02-03 | Sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215103871U (en) |
-
2021
- 2021-02-03 CN CN202120309162.9U patent/CN215103871U/en active Active
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |