CN2646174Y - Lower feeding mechanism of high speed parallel sewing machine - Google Patents
Lower feeding mechanism of high speed parallel sewing machine Download PDFInfo
- Publication number
- CN2646174Y CN2646174Y CN 03209730 CN03209730U CN2646174Y CN 2646174 Y CN2646174 Y CN 2646174Y CN 03209730 CN03209730 CN 03209730 CN 03209730 U CN03209730 U CN 03209730U CN 2646174 Y CN2646174 Y CN 2646174Y
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- CN
- China
- Prior art keywords
- shaft
- tooth
- crank
- feed
- rock shaft
- 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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Abstract
The utility model provides a lower feeding mechanism of high speed parallel sewing machine of seven-lever mechanism; an upper shaft conveys the motion to a raising tooth shaft through a timing belt; the raising tooth shaft conveys the motion to a cloth feeding shaft. The seven-lever mechanism combines the rotation movement of the raising tooth shaft and the cloth feeding movement of the cloth feeding shaft for the cloth feeding tooth to perform cloth feeding movement. All lower feeding movements of the utility model are realized at the lower part of the bottom board of sewing machine, so the vibration and the noise of sewing machine are reduced; at the same time, compared with the mechanism and practicability of traditional five-lever mechanism, the seven-lever mechanism is easier to optimize the cloth feeding tooth track so that the feeding movement more satisfies sewing demand.
Description
Technical field
The utility model relates to the sewing field, specifically is a kind of down charging mechanism of high speed parallel sewing machine.
Background technology
Traditional down charging mechanism is a five-bar mechanism, sees also Fig. 1, and Fig. 1 is the down charging mechanism sketch of traditional high speed parallel sewing machine.Wherein go up axle (not drawing among the figure) and motion is delivered to feed lifting rock shaft 29 by a kink four bar linkage, the swing of feed lifting rock shaft 29, drive 28 swings of feed lifting rock shaft crank, retainer connecting rod 26 is around 27 swings of feed lifting rock shaft crank hinge axis, by retainer connecting rod link axle 25 retainer 24 is formed and move up and down, realize that the tooth of lifting of feeding down moves.Last axle (not drawing among the figure) is delivered to cloth pushing shaft 21 to motion by a seven-link assembly mechanism, swing by cloth pushing shaft 21, drive the swing of crank of tooth frame 22, by crank of tooth frame axle 23 retainer 24 is moved horizontally again, realize the work feed motion of feeding campaign down.Make feed dog form the feeding movement locus of sub-elliptical after lifting tooth motion and work feed motion combination, like this, realized the work feed motion of feed dog by five-bar mechanism.
Traditional mechanism lift tooth motion and the work feed motion all will drive respectively by last axle, big at the space structure upper span, be easy to generate when running up and vibrate and the sound.Another shortcoming of five-bar mechanism is that the optimization degree of feed dog path is limited, can not require mechanism size is optimized according to work feed fully.
Summary of the invention
The purpose of this utility model is to provide a kind of and reduces vibration and noise, realizes a kind of seven-link assembly down charging mechanism of the high speed parallel sewing machine that feed dog path is optimized easily.
The purpose of this utility model is to finish by following technical solution.Down charging mechanism of the present utility model is a seven-link assembly mechanism.Last axle (not drawing among the figure) transmits motion to feed lifting rock shaft by synchronous band, and feed lifting rock shaft transmits motion to cloth pushing shaft by two quadric chains (not drawing among the figure), realizes the work feed motion of feeding down.Behind rotatablely move the work feed kinematic synthesis with cloth pushing shaft of seven-link assembly mechanism, finish the work feed motion of feed dog with feed lifting rock shaft.After last axle transmitted motion to feed lifting rock shaft, all following feeding campaigns all realized in the bottom of Sewing machines base plate (not drawing among the figure).Concrete structure is that feed lifting rock shaft is supported by bearing and bearing holder (housing, cover), feed lifting rock shaft joins with the tooth lifting cam of off-centre, one end of tooth lifting cam puts in and forms a hinge in the circular hole of tooth lifting cam connecting rod, the feed lifting rock shaft crank minor axis is fixed on the base plate, the macropore of feed lifting rock shaft crank and feed lifting rock shaft crank minor axis movingly, a stomidium of feed lifting rock shaft crank connecting rod links to each other by the aperture of eccentric shaft with tooth lifting cam connecting rod and feed lifting rock shaft crank; Another stomidium of feed lifting rock shaft crank connecting rod links to each other with retainer by minor axis, and feed dog is installed on the retainer; Cloth pushing shaft is supported by the cloth pushing shaft axle sleeve, and cloth pushing shaft puts in the hole of crank of tooth frame and links to each other, and by the crank of tooth frame eccentric shaft retainer other end is linked to each other with crank of tooth frame.
The beneficial effects of the utility model are that all following feeding campaigns all realize in the bottom of Sewing machines base plate, have so just reduced the vibration and the sound of Sewing machines; Simultaneously, seven-link assembly mechanism reaches the optimization of all easier realization feed dog path in the practice from theory of mechanisms, thereby makes the feeding campaign more meet the sewing demand.
Description of drawings
Fig. 1 is the sketch of traditional high speed parallel sewing machine down charging mechanism.
Fig. 2 is a down charging mechanism sketch of the present utility model.
Fig. 3 is the flat assembly drawing of down charging mechanism of the present utility model.
Fig. 4 is the three-dimensional combination figure of down charging mechanism of the present utility model.
Fig. 5 is the three-dimensional exploded view of down charging mechanism of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 2 to Fig. 5, down charging mechanism of the present utility model is a seven-link assembly mechanism, last axle (not drawing among the figure) transmits motion to feed lifting rock shaft 1 by synchronous band, feed lifting rock shaft 1 transmits motion to cloth pushing shaft 16 by two quadric chains (not drawing among the figure), realizes down the work feed motion of feeding.Feed lifting rock shaft 1 of the present utility model is supported by bearing 2 and bearing block 3, and rotation feed lifting rock shaft 1 drives tooth lifting cam 4 and rotates, and under the effect of tooth lifting cam 4 off-centre, tooth lifting cam connecting rod 5 slightly moves.One end of tooth lifting cam 4 puts in the annulus of tooth lifting cam connecting rod 5, and is covered by tooth lifting cam end cap 8, forms a hinge.Feed lifting rock shaft crank minor axis 7 is fixed on the base plate simultaneously, feed lifting rock shaft crank 6 rotates around feed lifting rock shaft crank minor axis 7, feed lifting rock shaft crank connecting rod 12 links to each other with feed lifting rock shaft crank 6 with tooth lifting cam connecting rod 5 by eccentric shaft 13, moving up and down of feed lifting rock shaft crank connecting rod 12, pass through the connection of minor axis 10 again, drive moving up and down of retainer 11, the agomphiasis of lifting that forms the feed dog 9 that is installed on the retainer 11 is done.Cloth pushing shaft 16 is supported by cloth pushing shaft axle sleeve 17, and the swing of cloth pushing shaft 16 drives the swing of crank of tooth frame 15, again by crank of tooth frame eccentric shaft 14 interlocks, thereby makes retainer 11 form the straight feeding motion.Two kinematic synthesis form the feeding movement locus of the sub-elliptical of feed dog 9 later on.
Through trial-production and on probation, by aforesaid feed lifting rock shaft 1, the on-stream more traditional five-bar mechanism of seven-link assembly down charging mechanism of the compositions such as hinge, feed lifting rock shaft crank minor axis 7, eccentric shaft 13, minor axis 10, crank of tooth frame eccentric shaft 14 and cloth pushing shaft 16 that tooth lifting cam 4 and tooth lifting cam connecting rod 5 constitute has reduced vibration and noise, and realizes the optimization to feed dog path easily.
Claims (1)
1, a kind of down charging mechanism of high speed parallel sewing machine,
It is characterized in that, be installed in the bottom of Sewing machines base plate, feed lifting rock shaft (1) is supported by bearing (2) and bearing holder (housing, cover) (3), and feed lifting rock shaft (1) joins with eccentric tooth lifting cam (4), and an end of tooth lifting cam (4) puts in the circular hole of tooth lifting cam connecting rod (5) and forms a hinge; Feed lifting rock shaft crank minor axis (7) is fixed on the base plate, the macropore of feed lifting rock shaft crank (6) and feed lifting rock shaft crank minor axis (7) movingly, a stomidium of feed lifting rock shaft crank connecting rod (12) links to each other with the aperture of tooth lifting cam connecting rod (5) with feed lifting rock shaft crank (6) by eccentric shaft (13); Another stomidium of feed lifting rock shaft crank connecting rod (12) links to each other with retainer (11) by minor axis (10), and feed dog (9) is installed on the retainer (11); Cloth pushing shaft (16) is supported by cloth pushing shaft axle sleeve (17), and cloth pushing shaft (16) puts in crank of tooth frame (15) hole and links to each other, and by crank of tooth frame eccentric shaft (14) retainer (11) other end is linked to each other with crank of tooth frame (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209730 CN2646174Y (en) | 2003-08-13 | 2003-08-13 | Lower feeding mechanism of high speed parallel sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209730 CN2646174Y (en) | 2003-08-13 | 2003-08-13 | Lower feeding mechanism of high speed parallel sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2646174Y true CN2646174Y (en) | 2004-10-06 |
Family
ID=34289073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209730 Expired - Fee Related CN2646174Y (en) | 2003-08-13 | 2003-08-13 | Lower feeding mechanism of high speed parallel sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2646174Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304825A (en) * | 2011-08-25 | 2012-01-04 | 中屹机械工业有限公司 | Connecting rod type sleeve joining feeding mechanism |
| CN102704200A (en) * | 2012-05-22 | 2012-10-03 | 吴江市金真缝纫机有限公司 | Bottom feed articulator set and production process of articulator seat |
| CN103981650A (en) * | 2014-05-27 | 2014-08-13 | 新杰克缝纫机股份有限公司 | Swing seat component with bearing |
| CN105442195A (en) * | 2015-12-29 | 2016-03-30 | 杰克缝纫机股份有限公司 | Sewing machine |
-
2003
- 2003-08-13 CN CN 03209730 patent/CN2646174Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304825A (en) * | 2011-08-25 | 2012-01-04 | 中屹机械工业有限公司 | Connecting rod type sleeve joining feeding mechanism |
| CN102304825B (en) * | 2011-08-25 | 2013-04-03 | 中屹机械工业有限公司 | Connecting rod type sleeve joining feeding mechanism |
| CN102704200A (en) * | 2012-05-22 | 2012-10-03 | 吴江市金真缝纫机有限公司 | Bottom feed articulator set and production process of articulator seat |
| CN103981650A (en) * | 2014-05-27 | 2014-08-13 | 新杰克缝纫机股份有限公司 | Swing seat component with bearing |
| CN105442195A (en) * | 2015-12-29 | 2016-03-30 | 杰克缝纫机股份有限公司 | Sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041006 Termination date: 20100813 |