CN202415925U - Semi-automatic thread shearing device - Google Patents
Semi-automatic thread shearing device Download PDFInfo
- Publication number
- CN202415925U CN202415925U CN2011204939947U CN201120493994U CN202415925U CN 202415925 U CN202415925 U CN 202415925U CN 2011204939947 U CN2011204939947 U CN 2011204939947U CN 201120493994 U CN201120493994 U CN 201120493994U CN 202415925 U CN202415925 U CN 202415925U
- Authority
- CN
- China
- Prior art keywords
- crank
- thread
- trimming
- shearing
- thread shearing
- Prior art date
- 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.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to a semi-automatic thread shearing device, which comprises a push button, a fixed block, a slider, an extension spring, a thread loosening lever, a bracing wire and a thread clamp, wherein the upper of a thread shearing crankshaft 2 is provided with the push button 22, the crankshaft 2 is fixed with a thread shearing swing crank 1, the lower end of the thread shearing swing crank 1 is provided with a notch, a cylindrical end screw 17 and a crank 16 are arranged in the notch through a shoulder screw 15, the lower end of the crank 16 is connected with the thread clamp 29 through a connection plate 21, a connection wire 20, the thread loosening lever 19 and a thread loosening nail 18, the thread shearing swing crank 1 is connected with a fixed cutter 26 through a thread shearing connection rod 5, a crank 6, a moving cutter shaft 7, a moving cutter 8, and a fixed cutter 26, and the thread shearing connection rod 5 is provided with a spring hanging plate 12. Compared with the existing thread shearing mechanism, the device has the advantages that the thread shearing function is realized; a thread shearing electromagnet and a thread loosening electromagnet are not adopted, so that the cost of the machine can be saved; and a motor can only be required to have the up and down needle stopping positioning function, so that the working efficiency is improved.
Description
Technical field
The utility model relates to the parts in a kind of industrial sewing machine, a kind of semi-automatic cutting facility in the comprehensive wheel of the promptly high head feed sewing machine.
Background technology
The comprehensive wheel of the high head of present automatic shearing feed sewing machine; Its trimming principle such as Fig. 1: when trimming, the driven by motor machine turns, and under stop the pin position begin to turn an angle the back respectively output voltage give trimming electromagnet 27 and loose ends electromagnet 28; After 27 energisings of trimming electromagnet; 16 swings of pulling crank, the cylindrical end screw 17 on it drives trimming wobble crank 1 and moves down, and trimming roller 3 gets in the trimming cam path.On the other hand; Loose ends electromagnet energising back action promotes thread tension releasing disc and accomplishes loose ends, and machine is rotated further; Trimming cam 4 drives entire mechanism and through a series of mechanical action suture is cut off; Machine turns on stop the pin position, motor stops operating and discharges trimming electromagnet and loose ends electromagnet, the trimming action is accomplished.Such motor will have the output port of power source of accurate localization function and trimming electromagnet and loose ends electromagnet; With respect to common not with the machine of trimming function; Though improved operating efficiency; But, improved requirement, so the cost of entire machine increases greatly to motor owing to increased trimming electromagnet and loose ends electromagnet.
Summary of the invention
In order to reduce the production of machinery cost, and don't as for the operating efficiency that influences the user, the utility model provides a kind of semi-automatic cutting facility.
This semi-automatic cutting facility; Comprise button, fixed block, sliding shoe, extension spring, loose ends lever, backguy and tension disk, it is characterized in that the top of trimming crank axle 2 is provided with button 22; Be fixed with trimming wobble crank 1 on the crank axle 2; The lower end of trimming wobble crank 1 is provided with notch, and axial screw 15 is installed in cylindrical end screw 17 and crank 16 in the notch, and crank 16 lower ends are connected with tension disk 29 through connecting plate 21, backguy 20, loose ends lever 19, tension releasing pin 18; Trimming wobble crank 1 is connected with stationary knife 26 through trimming connecting rod 5, crank 6, movable arbor 7, moving knife 8; Trimming connecting rod 5 is provided with spring hanging plate 12; Fixed block 9 is provided with sliding shoe 10, and the left end of sliding shoe 10 is connected with spring hanging plate 12 through extension spring 11, and the end of trimming wobble crank 1 is fixed between sliding shoe 10 and the fixed block 9, and sliding shoe 10 left ends also are provided with nut 14 and screw 13.
Machine under stop after the pin position stops; Press push button 22 moves down the crank axle 2 drive trimming wobble cranks 1 of its lower end, and the cylindrical end screw 17 that is positioned at trimming wobble crank 1 bottom notch drives thereupon and can swing around the crank 16 that axial screw 15 rotates; The connecting plate 21 that links to each other with crank 16 drives backguy 20; Loose ends lever 19 travels forward tension releasing pin 18, thereby the thread tension releasing disc 25 that promotion clamp spring 24 is pushed down unclamps the strong device 29 of folder, realizes loose ends, trimming work.
The utility model is compared with existing thread cutting mechanism, has the function of trimming equally, does not adopt trimming electromagnet and loose ends electromagnet, has practiced thrift machine cost, and motor has been only required that the upper and lower pin positioning function of stopping gets final product, and has improved operating efficiency.
Description of drawings
Fig. 1 is traditional comprehensive wheel thread cutting mechanism part sketch map that feed sewing machine adopted of high head
Fig. 2 is the drive mechanism figure of the utility model
Fig. 3 is the parts explosion of the utility model
Fig. 4 is the I-I cutaway view of non-trimming state
Fig. 5 is the I-I cutaway view of trimming state
Among the figure: 1 trimming wobble crank, 2, the trimming crank axle, 3, the trimming roller, 4, the trimming cam, 5, trimming connects fourth, 6, crank, 7, movable arbor; 8, moving knife, 9, fixed block, 10, sliding shoe, 11, extension spring, 12, spring hanging plate, 13, screw; 14, nut, 15, axial screw, 16, crank, 17, the cylindrical end screw, 18, tension releasing pin, 19, the loose ends lever; 20, backguy, 21, connecting plate, 22, button, 23, back-moving spring, 24, the clamp spring; 25, thread tension releasing disc, 26, stationary knife, 27, the trimming electromagnet, 28, the loose ends electromagnet, 29, tension disk.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is specified as follows:
In Fig. 2 and Fig. 3; This semi-automatic cutting facility comprises button, fixed block, sliding shoe, extension spring, loose ends lever, backguy and tension disk, and the top of trimming crank axle 2 is provided with button 22; Be fixed with trimming wobble crank 1 on the crank axle 2; The lower end of trimming wobble crank 1 is provided with notch, and axial screw 15 is installed in cylindrical end screw 17 and crank 16 in the notch, and crank 16 lower ends are connected with tension disk 29 through connecting plate 21, backguy 20, loose ends lever 19, tension releasing pin 18; Trimming wobble crank 1 is connected with stationary knife 26 through trimming connecting rod 5, crank 6, movable arbor 7, moving knife 8; Trimming connecting rod 5 is provided with spring hanging plate 12; Fixed block 9 is provided with sliding shoe 10, and the left end of sliding shoe 10 is connected with spring hanging plate 12 through extension spring 11, and the end of trimming wobble crank 1 is fixed between sliding shoe 10 and the fixed block 9, and sliding shoe 10 left ends also are provided with nut 14 and screw 13.
When Fig. 4 representes non-trimming state, the mutual alignment of sliding shoe 10, fixed block 9 and trimming wobble crank 1.
When Fig. 5 representes the trimming state, the mutual alignment of sliding shoe 10, fixed block 9 and trimming wobble crank 1.
Claims (1)
1. semi-automatic cutting facility; Comprise button, fixed block, sliding shoe, extension spring, loose ends lever, backguy and tension disk; It is characterized in that; The top of trimming crank axle (2) is provided with button (22), is fixed with trimming wobble crank (1) on the crank axle (2), and the lower end of trimming wobble crank (1) is provided with notch; Axial screw (15) is installed in cylindrical end screw (17) and crank (16) in the notch, and crank (16) lower end is connected with tension disk (29) through connecting plate (21), backguy (20), loose ends lever (19), tension releasing pin (18); Trimming wobble crank (1) is connected with stationary knife (26) through trimming connecting rod (5), crank (6), movable arbor (7), moving knife (8); Trimming connecting rod (5) is provided with spring hanging plate (12); Fixed block (9) is provided with sliding shoe (10); The left end of sliding shoe (10) is connected with spring hanging plate (12) through extension spring (11); The end of trimming wobble crank (1) is fixed between sliding shoe (10) and the fixed block (9), and sliding shoe (10) left end also is provided with nut (14) and screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204939947U CN202415925U (en) | 2011-12-02 | 2011-12-02 | Semi-automatic thread shearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204939947U CN202415925U (en) | 2011-12-02 | 2011-12-02 | Semi-automatic thread shearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202415925U true CN202415925U (en) | 2012-09-05 |
Family
ID=46740705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204939947U Expired - Fee Related CN202415925U (en) | 2011-12-02 | 2011-12-02 | Semi-automatic thread shearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202415925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877929A (en) * | 2020-12-31 | 2021-06-01 | 浙江美机缝纫机有限公司 | Thread cutting and loosening mechanism of sewing machine |
-
2011
- 2011-12-02 CN CN2011204939947U patent/CN202415925U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877929A (en) * | 2020-12-31 | 2021-06-01 | 浙江美机缝纫机有限公司 | Thread cutting and loosening mechanism of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20161202 |