CN2499419Y - stop positioning mechanism for computer sewing machine - Google Patents
stop positioning mechanism for computer sewing machine Download PDFInfo
- Publication number
- CN2499419Y CN2499419Y CN 01253508 CN01253508U CN2499419Y CN 2499419 Y CN2499419 Y CN 2499419Y CN 01253508 CN01253508 CN 01253508 CN 01253508 U CN01253508 U CN 01253508U CN 2499419 Y CN2499419 Y CN 2499419Y
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- CN
- China
- Prior art keywords
- positioning
- cam
- bar
- extension spring
- sewing machine
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- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model provides a stop positioning mechanism for computer sewing machine. Based on the electric magnet and cam control principle, in the last circle before stopping, a positioning mechanism receives the order form a computer to set an electric magnet out to work and to drive a middle spring piece in the positioning mechanism to move downwards and contact with the cam arranged on the main shaft of a sewing machine when the cam is at an angle of 120 degrees until slides into a groove for the cam, thereby realizing the stop positioning. After a short stop, the middle spring piece moves upwards and returns to the original state, so the sewing can rotate again. The position of the utility model is very accurate with the control of the groove of the cam.
Description
Technical field
This practicality relates to the stop mechanism of Sewing machines in the garment production machinery.
Background technology
The clothing industry streamline is produced higher to the parking positioning accuracy request of high-speed cruising Sewing machines, when wishing that computer controlled sewing machine stops at every turn, angle of eccentricity can both reach accurate position, and is correct to guarantee the needle bar of sewing machine height and position, improves the sewing performances such as reliability of automatic shearing.The computer controlled sewing machine of present domestic employing pulse code frequency control, though can reach higher parking positioning accuracy, but can not guarantee that still each shank height and position that stops is highly stable and automatic shearing is very reliable, trimming instability after causing computer controlled sewing machine to stop sometimes, the off-line phenomenon takes place when rotating once more, influences operating efficiency and end product quality.
Summary of the invention
The purpose of this utility model is to utilize the electromagnet effect, constitutes a kind ofly to control Sewing machines parking detent mechanism reliable and simple in structure, thereby guarantees that each parking spot is all very correct.
The technical scheme that the utility model is taked is that a cover electromagnet device is installed on the computer controlled sewing machine side frame, and the electromagnet of slip flexibly connects by connecting rod and the fixed bar that the spring spacer is housed.And positioning cam is housed on machine spindle.After computer sends cutoff command, the motor stall, electromagnet produces suction-operated, and descending by connecting rod drive spacer contacts with cam, turns to the groove that the big minor radius of cam intersects, the positioning action after realization is stopped in the spring leaf insertion groove.The electromagnet device is through stopping in short-term because of dead electricity resets, and fixed bar is got back to the origin-location by spring action, the spring spacer is moved upward leave cam to return to original state.
The advantage of this mechanism is that control is reliable, and response fast, and is simple in structure and easy for installation, when computer controlled sewing machine stopped at every turn, angle of eccentricity was in the exact position, thereby improved the reliability of automatic shearing, guaranteed the shank height and position, each parts coordinate well, complete machine stable performance.
Description of drawings
1. positioning electromagnet holder; 2. electromagnet; 3. connecting rod base;
4. loose ends shifting block bar seated; 5. connecting screw rod; 6. the reed of being hit by a bullet;
7. lack spring leaf; 8. location bar; 9. positioning and fixing bar;
10. positioning and fixing bar axial screw; 11. cam; 12. belt pulley connection cover;
13. thread tension releasing lever presser feet extension spring seat; 14. extension spring; 15. adjustment screw.
The specific embodiment
Below be an embodiment in conjunction with the accompanying drawings.The GE series type high-speed electronic calculator Sewing machines that Liming Clothing Machinery Factory, Shanghai produces adopts pulse code frequency control transmission device.Original parking positioning accuracy in order to improve this precision, now adopts this parking detent mechanism in ± 20 ° of scopes.On GE series type high-speed electronic calculator Sewing machines side frame, install a location electromagnet holder 1, electromagnet 2 is by connecting rod base 3, connecting screw rod 5 and loose ends shifting block bar seated 4 and be inverted 9 flexible connections of J type positioning and fixing bar, J-shaped positioning and fixing bar 9 is packed on the frame by axial screw 10, and top is clamped and be packed in together in middle part to two short spring leafs 7 and the middle reed 6 of being hit by a bullet by location bar 8 on it; There are several (on the accompanying drawing being 5) apertures can tangle extension spring 14 on the lower end shaft core line of positioning and fixing bar 9, and the other end of extension spring 14 hangs on the adjustment screw 15, adjustment screw 15 is packed on the thread tension releasing lever presser feet extension spring seat 13 on the frame, on the coaxial main shaft of belt pulley connection cover 12 zigzag shape cam 11 is housed, in cam 11 length radius intersection short radius one sides one groove is arranged, the be hit by a bullet thickness of reed 6 of the bigger what of groove width.When detent mechanism moves last lap before computer controlled sewing machine stops, electromagnet 2 is subjected to computer instruction work, by connecting rod base 3, loose ends shifting block bar seated 4 and connecting screw rod 5, positioning and fixing bar 9 is counterclockwise rotated for the axle center around axial screw 10, the spring leaf 6 and 7 that drives in the detent mechanism moves downward, the reed 6 of being hit by a bullet does not at ordinary times contact with cam 11, locate to begin to contact and be in 120 ° at belt pulley connection cover 12 and cam 11 this moment with cam, reed 6 slips into vehicle positioning stop in the cam groove up to being hit by a bullet, through after the short stay, because of the electromagnet dead electricity, positioning and fixing bar 9 rotates as clockwise direction by the work of extension spring 14, and the reed 6 of being hit by a bullet also moves upward, break away from cam, Sewing machines rotates once more.Owing to adopt the control of electromagnet and cam groove, each parking spot all can reach correct unanimity.
Claims (3)
1. the parking detent mechanism of computer controlled sewing machine, it is characterized in that installing on the Sewing machines side frame location electromagnetic block iron 1, electromagnet 2 is by connecting rod base 3, connecting screw rod 5 and loose ends shifting block bar seated 4 and positioning and fixing bar 9 flexibly connect, positioning and fixing bar 9 is packed on the frame by axial screw 10, top is clamped and be packed in middle part to two short spring leafs 7 and the middle reed 6 of being hit by a bullet thereof together by location bar 8 on it, positioning and fixing bar 9 lower ends hang with extension spring 14, the other end of extension spring 14 hangs on the adjustment screw 15, adjustment screw 15 is packed on the thread tension releasing lever presser feet extension spring seat 13 on the frame, on the coaxial main shaft of belt pulley connection cover 12 zigzag shape cam 11 is housed.
2. the detent mechanism that stops according to claim 1 is characterized in that positioning and fixing bar 9 for being inverted J-shaped bar, can rotate around axial screw 10, have the aperture that several hang extension spring 14 usefulness on the axial line of its underpart.
3. parking detent mechanism as claimed in claim 1 or 2 is characterized in that short radius one side of the length radius intersection of zigzag shape cam 11 has a groove, and groove width is slightly larger than the thickness of the reed 6 of being hit by a bullet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253508 CN2499419Y (en) | 2001-09-06 | 2001-09-06 | stop positioning mechanism for computer sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01253508 CN2499419Y (en) | 2001-09-06 | 2001-09-06 | stop positioning mechanism for computer sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499419Y true CN2499419Y (en) | 2002-07-10 |
Family
ID=33662993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01253508 Expired - Fee Related CN2499419Y (en) | 2001-09-06 | 2001-09-06 | stop positioning mechanism for computer sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499419Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570246B (en) * | 2003-07-11 | 2011-04-20 | 上海鲍麦克斯电子科技有限公司 | Solenoid for realizing sewing operation and its control method |
| CN101109136B (en) * | 2006-07-19 | 2012-10-03 | Juki株式会社 | Drive separating mechanism of sewing machine |
-
2001
- 2001-09-06 CN CN 01253508 patent/CN2499419Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570246B (en) * | 2003-07-11 | 2011-04-20 | 上海鲍麦克斯电子科技有限公司 | Solenoid for realizing sewing operation and its control method |
| CN101109136B (en) * | 2006-07-19 | 2012-10-03 | Juki株式会社 | Drive separating mechanism of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |