CN112391750A - Driving structure in sewing machine - Google Patents
Driving structure in sewing machine Download PDFInfo
- Publication number
- CN112391750A CN112391750A CN202011084086.2A CN202011084086A CN112391750A CN 112391750 A CN112391750 A CN 112391750A CN 202011084086 A CN202011084086 A CN 202011084086A CN 112391750 A CN112391750 A CN 112391750A
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- CN
- China
- Prior art keywords
- feeding
- tangent
- adjusting
- sewing machine
- rocker
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a driving structure in a sewing machine, and belongs to the technical field of machinery. The driving structure in the sewing machine comprises an adjusting motor, feeding teeth, a tangent line driving arm and a feeding adjusting seat, wherein the output shaft of the adjusting motor is in transmission connection with the feeding adjusting seat and can drive the feeding adjusting seat to move, the feeding adjusting seat is in transmission connection with the feeding teeth and the tangent line driving arm respectively, and the adjusting motor can adjust the lifting height of the feeding teeth and drive the tangent line driving arm to cut a thread. The invention has the advantages that the tangent action can be controlled and the lifting height of the feeding tooth can be adjusted simultaneously through the motor.
Description
Technical Field
The invention belongs to the technical field of machinery, in particular to a driving structure in a sewing machine.
Background
At present sewing machine in the use, need use different kinds of sewing cloth, different thickness can appear in these cloths, different smoothness, for make the cloth have better smoothness nature at the sewing in-process, in current sewing machine operation process, often can adjust the angle of lifting a tooth swing arm, be used for controlling the height of pay-off tooth, thereby improve pay-off smoothness nature. But the swing arm needs to loosen the loose screw above the swing arm, so that the adjusting mode is very complex and is not easy to operate, and meanwhile, the swing arm needs to be adjusted by experience in the adjusting process, so that the adjusting uncertainty is increased. The traditional thread cutting is realized by a separate driving structure to control the thread cutting action.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a driving structure in a sewing machine, and has the characteristics that the tangent action can be controlled and the lifting height of a feeding tooth can be adjusted simultaneously through a motor.
The purpose of the invention can be realized by the following technical scheme:
the driving structure in the sewing machine comprises an adjusting motor, feeding teeth, a tangent driving arm and a feeding adjusting seat, wherein an output shaft of the adjusting motor is in transmission connection with the feeding adjusting seat and can drive the feeding adjusting seat to move.
In the driving structure of the sewing machine, an output shaft of the adjusting motor is fixedly provided with an adjusting crank, the adjusting crank is rotatably connected with an adjusting connecting rod, and the other end of the adjusting connecting rod is rotatably connected with a feeding adjusting seat.
In the driving structure of the sewing machine, the feeding adjusting seat is rotatably connected with a tooth lifting shaft, the adjusting connecting rod can rotate around the tooth lifting shaft, a tooth lifting arm is fixed at the end part of the tooth lifting shaft, and the tooth lifting arm is in transmission connection with the tooth lifting.
In the driving structure of the sewing machine, the tangent driving arm is fixedly connected with a tangent shaft with a rotation of the tangent driving arm, a tangent rocker is fixed on the tangent shaft, and a sliding column is arranged at the end part of the feeding adjusting seat and is connected with the tangent rocker and can drive the tangent rocker to swing.
In the driving structure of the sewing machine, a sliding groove is formed in the tangent rocker, the sliding column extends into the sliding groove, and a space is formed between the inner wall of the sliding groove and the sliding column;
when the lifting height of the feeding teeth is adjusted, the sliding column is not in contact with the inner wall of the sliding groove, and when the tangent driving arm is driven to cut a line, the sliding column moves to be in contact with the inner wall of the sliding groove and drives the tangent rocker to swing.
In the driving structure of the sewing machine, a distance larger than 2mm is formed between the inner wall of the sliding chute and the sliding column.
In the driving structure of the sewing machine, the thread-loosening plate is fixedly connected to the thread-cutting rocker, the thread-loosening plate is fixedly connected to the other end of the thread-loosening plate, and the thread-loosening plate is driven to rotate to complete thread-loosening action when the thread-cutting rocker swings.
In the driving structure of the sewing machine, the sewing machine further comprises a machine shell, and the tangent rocker is connected with the machine shell through a tension spring.
Compared with the prior art, the invention has the following advantages:
the working principle of the invention is as follows: the feeding mechanism comprises a feeding gear, a feeding driving arm, a cutting motor, a motor driving mechanism and a control mechanism.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic view of the connection at the feed adjusting seat of the present invention.
Fig. 3 is a schematic view of a feed adjustment block according to the present invention.
Fig. 4 is a schematic view of the invention at the tangent rocker.
In the figure, 1, an upper shaft; 2. a tooth lifting connecting rod; 3. a feeding eccentric wheel; 4. adjusting the motor; 5. adjusting a crank; 6. adjusting the connecting rod; 7. a feed gear shaft; 8. a tooth lifting shaft; 9. a needle plate; 10. a feeding tooth holder; 11. a feeding rack; 12. a feed lifting arm; 13. feeding teeth; 14. feeding short plates; 15. a feeding crank; 16. a feeding adjusting seat; 16-1, hole one; 16-2 and a hole II; 16-3, hole three; 16-4, hole four; 17. feeding a long plate; 18. a tangent drive arm; 20. a traveler; 21. a tangent rocker; 22. cutting the bobbin; 23. a pull wire; 24. and (4) loosening the wire plate.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, the driving structure in the sewing machine includes an adjusting motor 4, a feeding tooth 13, a tangent line driving arm 18, and a feeding adjusting seat 16, wherein an output shaft of the adjusting motor 4 is in transmission connection with the feeding adjusting seat 16 and can drive the feeding adjusting seat 16 to move, the feeding adjusting seat 16 is in transmission connection with the feeding tooth 13 and the tangent line driving arm 18, respectively, and the adjusting motor can adjust the adjusting seat to move so as to drive the lifting height of the feeding tooth 13 and drive the tangent line driving arm 18 to cut a tangent line.
The working principle of the invention is as follows: the height of the feeding tooth 13 is adjusted through the control of the adjusting motor 4, the tangent line driving arm 18 can be controlled to cut off the tangent line through the adjusting motor 4, compared with a transmission adjusting mode of the feeding tooth 13 and a tangent line mode of the tangent line driving arm 18, the invention adopts the adjusting motor 4 to control two structures simultaneously, the cost is greatly saved, and the feeding tooth 13 is driven by the adjusting motor 4, the control precision of the height of the feeding tooth 13 is better, and the tangent line effect is better.
The automatic feeding device also comprises a machine shell, the adjusting motor 4 is fixed on the machine shell, the feeding teeth 13 and the tangent driving arms 18 are arranged on the machine shell, and the connection mode of the feeding teeth 13 and the tangent driving arms 18 with the machine shell belongs to the prior art and is not described in detail herein.
The feeding tooth 13 is also provided with a feeding tooth shaft 7, a feeding tooth holder 10, a feeding tooth rack 11 and a feed lifting arm 12. The feeding tooth shaft 7, the feeding tooth holder 10, the feeding tooth frame 11 and the tooth lifting arm 12 are all in the prior art, the tooth lifting arm 12 is fixed on the tooth lifting tooth shaft 8, and the feeding tooth 13 is in transmission connection with the tooth lifting tooth shaft 8 through the tooth lifting arm 12.
Specifically, an adjusting crank 5 is fixed on an output shaft of the adjusting motor 4, an adjusting connecting rod 6 is rotatably connected to the adjusting crank 5, and a feeding adjusting seat 16 is rotatably connected to the other end of the adjusting connecting rod 6. The adjusting motor 4 can drive the adjusting crank 5 to rotate, the adjusting connecting rod 6 is rotatably connected to the eccentric position of the adjusting crank 5, and the adjusting crank 5 can drive the adjusting connecting rod 6 to move.
Specifically, the feeding adjusting seat 16 is rotatably connected with a tooth lifting tooth shaft 8, the adjusting connecting rod 6 can rotate around the tooth lifting tooth shaft 8, a tooth lifting arm 12 is fixed at the end part of the tooth lifting tooth shaft 8, and the tooth lifting arm 12 is in transmission connection with the tooth lifting tooth. The tooth lifting shaft 8 is rotatably connected to the housing, and the connection of the tooth lifting arm 12 to the tooth lifting is conventional and will not be described in detail herein.
Specifically, a tangent axis 22 with a rotation thereof is fixedly connected to the tangent driving arm 18, a tangent rocker 21 is fixed to the tangent axis 22, a sliding column 20 is fixed to the end of the feeding adjusting seat 16, and the sliding column 20 is connected to the tangent rocker 21 and can drive the tangent rocker 21 to swing.
The feeding adjusting seat 16 is provided with a first hole 16-1, a second hole 16-2, a third hole 16-3 and a fourth hole, and the feeding adjusting seat 16 is fixedly matched with the tooth lifting shaft 8 through the first hole 16-1.
The hole II 16-2 is connected with a driving mechanism which drives the tooth lifting shaft 8 to rotate back and forth, the driving mechanism comprises a feeding crank 15, a feeding long plate 17, a feeding short plate 14, an upper shaft 1, a tooth lifting connecting rod 2 and a feeding eccentric wheel 3, the feeding crank 15 is fixed on the tooth lifting shaft 8, one end of the feeding long plate 17 and one end of the feeding short plate 14 are concentrically and rotatably connected, the other end of the feeding long plate 17 is rotatably connected with one end of the feeding crank 15, the other end of the feeding short plate 14 is rotatably connected to the middle of a feeding adjusting seat 16, namely, the other end of the feeding short plate 14 is matched with the hole II 16-2, the feeding eccentric wheel 3 is fixed on the upper shaft 1, the upper shaft 1 is rotatably connected on a machine shell, the upper shaft 1 is driven to rotate by the conventional driving motor, one end of the tooth connecting rod 2 is rotatably connected to the side, One end of the feeding short plate 14 is concentrically and rotatably connected with the other end of the tooth lifting connecting rod 2. This structure is also prior art and is described briefly.
In the normal sewing process, the adjusting motor 4 is adjusted to a corresponding angle according to the preset height of the feeding tooth 13, a certain torque is kept fixed, the feeding eccentric wheel 3 is driven by the upper shaft 1 to rotate, the feeding short plate 14 is driven to swing through the tooth lifting connecting rod 2, the feeding crank 15 is driven to swing through the feeding long plate 17, the feeding crank 15 fixed on the tooth lifting tooth shaft 8 and the tooth lifting arm 12 are in the same swing amplitude, and therefore the vertical movement amplitude of the feeding tooth 13 is controlled.
When the height of the feeding teeth 13 needs to be adjusted in the sewing process, the adjusting motor starts to rotate according to the amplitude which needs to be adjusted, the angle position of the feeding adjusting seat 16 changes at the moment, so that the swing angle of the feeding crank 15 changes, if the height of the feeding teeth 13 increases, the swing amplitude of the feeding crank 15 also increases, and vice versa, and the sewing machine can be well adapted to different sewing working conditions.
One end of the adjusting connecting rod 6 is matched with the third hole 16-3.
The sliding column 20 is rotatably arranged on the hole four, and the sliding column 20 is connected with the tangent rocker 21.
Specifically, a sliding groove is formed in the tangent rocker 21, the sliding column 20 extends into the sliding groove, when the lifting height of the feeding tooth 13 is adjusted, the sliding column 20 is not in contact with the inner wall of the sliding groove, and when the tangent driving arm 18 is driven to conduct tangent, the sliding column 20 moves to be in contact with the inner wall of the sliding groove and drives the tangent rocker 21 to swing.
In the adjusting process, the sliding column 20 and the tangent rocker 21 are always in a non-contact state, when a tangent is needed, the rotating angle of the adjusting motor 4 exceeds the adjusting range of the feeding gear 13, then the sliding column 20 is in contact with the tangent rocker 21 and drives the tangent rocker 21 to swing, and the tangent rocker 21 drives the tangent driving arm 18 to swing and tangent. When the sliding column 20 moves and is not in contact with the tangent rocker 21, the height adjusting stage of the feeding teeth 13 is performed, and after the sliding column 20 is in contact with the tangent rocker 21, the tangent stage is performed. Under normal sewing conditions, the sliding column 20 and the thread cutting rocker 21 are separated, and only the thread cutting is contacted.
Specifically, the inner wall of the chute has a distance of more than 2mm from the strut 20.
Specifically, the tangent rocker 21 is fixedly connected with a pull wire 23, the other end of the pull wire 23 is fixedly connected with a thread releasing plate 24, and the thread releasing plate 24 is driven to rotate to complete thread releasing action when the tangent rocker 21 swings. In the thread cutting process, the thread cutting rocker 21 swings and can pull the pull wire 23 to swing the thread loosening plate 24, so that the thread loosening action is completed, and the structure of the thread loosening plate 24 also belongs to the prior art. The thread cutting action and the thread releasing action are performed synchronously. The wire releasing plate 24 is rotatably connected to the housing.
Specifically, the tangent rocker 21 is connected to the housing by a tension spring. The tangent rocker 21 is kept still by the elasticity provided by the spring in the static state.
The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. The driving structure in the sewing machine comprises an adjusting motor, feeding teeth, a tangent driving arm and a feeding adjusting seat, wherein an output shaft of the adjusting motor is in transmission connection with the feeding adjusting seat and can drive the feeding adjusting seat to move.
2. The driving structure of sewing machine according to claim 1, wherein an adjusting crank is fixed to the output shaft of the adjusting motor, an adjusting link is rotatably connected to the adjusting crank, and a feed adjusting seat is rotatably connected to the other end of the adjusting link.
3. The driving structure of sewing machine according to claim 2, wherein the feed adjusting seat is rotatably connected with a tooth lifting shaft, the adjusting link rod can rotate around the tooth lifting shaft, a tooth lifting arm is fixed at the end of the tooth lifting shaft, and the tooth lifting arm is in transmission connection with the tooth lifting shaft.
4. The driving structure of sewing machine according to claim 2, wherein the tangent driving arm is fixedly connected with a tangent axis with rotation thereof, the tangent axis is fixedly connected with a tangent rocker, and the end of the feeding adjustment seat is provided with a sliding column which is connected with the tangent rocker and can drive the tangent rocker to swing.
5. The driving structure of sewing machine according to claim 4, wherein the tangent rocker is provided with a sliding slot, the sliding post extends into the sliding slot, and a space is formed between the inner wall of the sliding slot and the sliding post;
when the lifting height of the feeding teeth is adjusted, the sliding column is not in contact with the inner wall of the sliding groove, and when the tangent driving arm is driven to cut a line, the sliding column moves to be in contact with the inner wall of the sliding groove and drives the tangent rocker to swing.
6. The driving structure of sewing machine according to claim 4, wherein the thread-releasing plate is fixedly connected to the thread-cutting rocking bar, and the thread-releasing plate is fixedly connected to the other end of the thread-releasing plate, and is driven to rotate to release the thread when the thread-cutting rocking bar swings.
7. The driving structure in a sewing machine according to claim 1, further comprising a housing, wherein the tangent rocker is connected to the housing by a tension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011084086.2A CN112391750A (en) | 2020-10-12 | 2020-10-12 | Driving structure in sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011084086.2A CN112391750A (en) | 2020-10-12 | 2020-10-12 | Driving structure in sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112391750A true CN112391750A (en) | 2021-02-23 |
Family
ID=74595945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011084086.2A Pending CN112391750A (en) | 2020-10-12 | 2020-10-12 | Driving structure in sewing machine |
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| Country | Link |
|---|---|
| CN (1) | CN112391750A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198690A1 (en) * | 2021-03-24 | 2022-09-29 | 浙江沪龙科技股份有限公司 | Sewing machine |
-
2020
- 2020-10-12 CN CN202011084086.2A patent/CN112391750A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198690A1 (en) * | 2021-03-24 | 2022-09-29 | 浙江沪龙科技股份有限公司 | Sewing machine |
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