CN102720012A - Driving mechanism of level sewing machine - Google Patents
Driving mechanism of level sewing machine Download PDFInfo
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- CN102720012A CN102720012A CN2012102132400A CN201210213240A CN102720012A CN 102720012 A CN102720012 A CN 102720012A CN 2012102132400 A CN2012102132400 A CN 2012102132400A CN 201210213240 A CN201210213240 A CN 201210213240A CN 102720012 A CN102720012 A CN 102720012A
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- synchronous pulley
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Abstract
The invention provides a driving mechanism of a level sewing machine and belongs to the technical field of sewing machines. The invention solves the problems of complicated structure, high requirement on installation and the like in the prior art. The driving mechanism of the level sewing machine comprises a sewing machine upper shaft, a sewing machine lower shaft and a backstitch wrench, wherein a synchronous pulley is mounted at one end of the upper shaft and one end of the lower shaft respectively; one side of the synchronous pulley on the upper shaft is fixedly connected with the motor shaft of a driving motor by a coupling; the synchronous pulley on the upper shaft and the synchronous pulley on the lower shaft are driven by a synchronous belt; a tooth lifting connecting rod and a feeding connecting rod are respectively mounted at the other side of the synchronous pulley on the upper shaft through two eccentric wheels; and the synchronous pulleys and the synchronous belt are arranged in independent sealed cavities divided by sealing separators, or the eccentric wheels, the synchronous pulleys and the synchronous belt are all arranged in independent sealed cavities divided by the sealing separators. The driving mechanism of the level sewing machine has the advantages of simple and practical structure, good use performance and the like.
Description
Technical field
The invention belongs to the driving mechanism in sewing machine technique field, particularly a kind of flat seam machine.
Background technology
Flat seam machine is the most basic car type at sewing device, in making, is the simplest stitching, and the stitching neat appearance, the stitching that sew are even, and smooth firmly sewing velocity is fast, easy and simple to handle, and use is easily understood.
At present, flat seam machine of the prior art normally goes up axle through belt pulley transmission feed lifting rock shaft, and feed lifting rock shaft is again through the gear drive lower shaft, and there is following problem in this structure: the one, and higher to the required precision of gear; And structure is comparatively complicated, and required part is also more, has caused part processing and assembly difficulty big; Have influence on machine performance and maintenance, increased production cost, the 2nd, because of being meshing with each other, gear weares and teares in the long-term back of using; Then have influence on lower shaft and last axle speed ratio, be easy to generate the striker phenomenon, incured loss through delay the duration; Reduced production efficiency, the 3rd, inflexible because the complexity of this structure causes backstitching the installation site of spanner, can not install flexibly.
Summary of the invention
The driving mechanism that the purpose of this invention is to provide the flat seam machine that a kind of structural stability is strong, serviceability is good.
The objective of the invention is to realize like this: a kind of driving mechanism of flat seam machine; Comprise on the Sewing machines axle, lower shaft and backstitch spanner; It is characterized in that: described upward axle all is equipped with synchronous pulley with an end of lower shaft; Synchronous pulley one side on the last axle is connected through the motor shaft of shaft coupling and drive motors; Synchronous pulley on the last axle and the synchronous pulley on the lower shaft pass through band transmission synchronously, and the opposite side that is positioned at the synchronous pulley on the axle is separately installed with through two eccentric wheels lifts tooth connecting rod and feeding connecting rod, and synchronous pulley is arranged in the independently sealed chamber that is partitioned into seal diaphragm with synchronous band; Or eccentric wheel, synchronous pulley and synchronous band all are arranged in the independently sealed chamber that is partitioned into seal diaphragm; Described feeding connecting rod connects feed spool through the oscillating feed device, and the oscillating feed device is connected with through Backsewing unit and backstitches spanner, describedly backstitches left side or the right side that spanner is arranged on synchronous band.
Operation principle of the present invention is directly to drive lower shaft through last axle to rotate; Be to be in transmission connection through synchronous band, upper and lower its sync rates of axle of this structure is high, therefore in Sewing machines work process; Process more accurate; Synchronous pulley on the last axle, synchronous band all are arranged in the independently sealed chamber that is partitioned into seal diaphragm, have avoided causing work to be skidded because of the entering of lubricating oil, have guaranteed stability in use; The fixed position that backstitches spanner simultaneously is positioned at this Sewing machines left side or the right side of band synchronously, therefore applicable to multiple Sewing machines.
In the driving mechanism of above-mentioned a kind of flat seam machine, described seal diaphragm is arranged on the body inner chamber and the body inwall is one-body molded, and seal diaphragm is provided with the through hole that passes axle usefulness, is installed with in the through hole and the counterrotating oil sealing of last axle.
In the driving mechanism of above-mentioned a kind of flat seam machine; The described synchronous pulley of going up on the axle is connected with the motor shaft of drive motors through shaft coupling: this synchronous pulley is provided with the groove that is connected with shaft coupling one end; One end of shaft coupling is plugged in the groove; The other end of shaft coupling is fixedly connected with motor shaft, is provided with the elastic buffer sheet between the groove on shaft coupling and the synchronous pulley.
In the driving mechanism of above-mentioned a kind of flat seam machine; The described synchronous pulley of going up on the axle is connected with the motor shaft of drive motors through shaft coupling: one-body molded on the one or both ends on the synchronous pulley axis have a sleeve; All radially be provided with screwed hole on the sleeve, described going up in the sleeve that axle and motor shaft all be plugged in two ends and through bolt is screwed onto in the screwed hole with fixing axle and the motor shaft gone up.
In the driving mechanism of above-mentioned a kind of flat seam machine; Described Backsewing unit is: be connected with the connecting rod of falling the feeding that matches and move with the crank of falling the feeding on the oscillating feed device; One end of the described crank of falling the feeding is provided with the roller pin that drives the link motion of falling the feeding; The other end is fixed with the wrench shaft that backstitches that is supported on the head shell, backstitches wrench shaft and backstitches spanner and be connected mutually.
In the driving mechanism of above-mentioned a kind of flat seam machine; The described synchronous pulley of going up on the axle is connected with the motor shaft of drive motors through shaft coupling: the side on the synchronous pulley axis is one-body molded to have sleeve; Radially be provided with screwed hole on the sleeve; Described upward axle or motor shaft are plugged in the sleeve and are screwed onto in the screwed hole fixing through bolt; Radially be provided with the long screwed hole that is communicated with the synchronous pulley centre bore on the teeth groove of described synchronous pulley, described upward axle or motor shaft are plugged in the synchronous pulley centre bore and are screwed onto in the long screwed hole fixing through bolt.
In the driving mechanism of above-mentioned a kind of flat seam machine, describedly backstitch the right side that spanner is arranged on synchronous band and be, the synchronous band that the right-hand member that backstitches wrench shaft passes annular extends the right side of synchronous band and is fixed with in its right part and backstitches wrench.
In the driving mechanism of above-mentioned a kind of flat seam machine, the ratio of the synchronous pulley on the described upward axle and the reference diameter of the synchronous pulley on the lower shaft is 2: 1.
The present invention compares the outstanding and beneficial technical effects of prior art:
1, the present invention adopt to go up axle directly to drive lower shaft through synchronous band, synchronous pulley, has omitted original gear drive or connecting rod transmission, and therefore the sync rates of upper and lower axle is high, Sewing machines precision machining, stable.。
2, be provided with between the groove of shaft coupling of the present invention and synchronous pulley the elastic buffer sheet, make on electric machine main shaft and the Sewing machines transmission of power of axle steady; The waste that has reduced energy has guaranteed the service behaviour of Sewing machines simultaneously; Or having adopted hard connection of the integrated sleeve of synchronous pulley to go up axle and motor shaft, syndeton is simple, practical function is good.
3, the wrench shaft that backstitches through different length of the present invention realizes backstitching left side or the right side that spanner is arranged on synchronous band, and structure is very clear, practical.
4, the present invention is located at synchronous pulley, synchronous being with eccentric wheel is separated respectively in two chambeies through seal diaphragm; Prevented that lubricating oil from entering to skidding of causing in the chamber of synchronous band, synchronous pulley; Guaranteed the stability of using; Or with synchronous pulley, band and eccentric wheel be at a distance from being located in the same annular seal space synchronously, simultaneously to the feeding on the eccentric wheel, lift the tooth connecting rod and seal anti-skidding protection.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a drive connection structure chart of the present invention.
Fig. 3 is the second kind of syndeton sketch map and the cutaway view of synchronous pulley of the present invention and each.
Fig. 4 is synchronous pulley of the present invention and each the third syndeton sketch map and cutaway view.
Fig. 5 is synchronous pulley of the present invention and each the 4th kind of syndeton sketch map and cutaway view.
Fig. 6 is the first kind of syndeton sketch map and the cutaway view of synchronous pulley of the present invention and each.
Fig. 7 is the mounting structure cutaway view of seal diaphragm of the present invention in body.
Fig. 8 is the similar alternative arrangements cutaway view of seal diaphragm of the present invention in body.
The specific embodiment
The present invention is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-8:
A kind of driving mechanism of flat seam machine; Comprise on the Sewing machines axle 1, lower shaft and backstitch spanner 2; It is characterized in that: a described end of going up axle 1 and lower shaft all is equipped with synchronous pulley 3; Synchronous pulley 3 one sides on the last axle are connected through the motor shaft 11 of shaft coupling 10 with drive motors; Synchronous pulley on synchronous pulley 3 on the last axle and the lower shaft is through be with 4 transmissions synchronously, and the opposite side that is positioned at the synchronous pulley 3 on the axle is separately installed with through two eccentric wheels 12 lifts tooth connecting rod and feeding connecting rod 5, synchronous pulley and being arranged in the independently sealed chamber that is partitioned into seal diaphragm 6 with 4 synchronously; Or eccentric wheel, synchronous pulley and synchronous band all are arranged in the independently sealed chamber that is partitioned into seal diaphragm 6; Described feeding connecting rod 5 connects feed spool 51 through the oscillating feed device, and the oscillating feed device is connected with through Backsewing unit and backstitches spanner 2, and the described spanner 2 that backstitches is arranged on synchronously left side or right side with 4.Operation principle of the present invention is directly to drive lower shaft through last axle 1 to rotate; Be through being with 4 to be in transmission connection synchronously, upper and lower its sync rates of axle of this structure is high, therefore in Sewing machines work process; Process more accurate; Synchronous pulley 3 on the last axle, all be arranged in the independently sealed chamber that is partitioned into seal diaphragm with 4 synchronously or the opposite side that is positioned at the synchronous pulley 3 on the axle is separately installed with through two eccentric wheels 12 and lifts tooth connecting rod and feeding connecting rod 5, synchronous pulley and being arranged in the independently sealed chamber that is partitioned into seal diaphragm 6 with 4 synchronously; Avoided causing work to be skidded because of the entering of lubricating oil; Guaranteed stability in use, the fixed position that backstitches spanner 2 simultaneously is positioned at this Sewing machines synchronously with 4 left side or right side, therefore applicable to multiple Sewing machines.
Be arranged on the body inner chamber and the body inwall is one-body molded at above-mentioned seal diaphragm 6, seal diaphragm 6 is provided with the through hole that passes axle usefulness, is installed with in the through hole and the counterrotating oil sealing of last axle.
As first kind of embodiment of the present invention; Referring to Fig. 6: the synchronous pulley 3 on above-mentioned on the axle is connected with the motor shaft 11 of drive motors through shaft coupling 10 and is: this synchronous pulley 3 is provided with the groove that is connected with shaft coupling 10 1 ends; One end of shaft coupling is plugged in the groove; The other end of shaft coupling is fixedly connected with motor shaft, is provided with elastic buffer sheet 7 between the groove on shaft coupling and the synchronous pulley.
As second kind and the third embodiment of the present invention; Referring to Fig. 3 and Fig. 4: the synchronous pulley 3 on above-mentioned on the axle is connected with the motor shaft 11 of drive motors through shaft coupling 10 and is: one-body molded on the one or both ends on synchronous pulley 3 axis have a sleeve 100; All radially be provided with screwed hole on the sleeve 100, described going up in the sleeve that axle 1 and motor shaft 11 all be plugged in two ends and through bolt is screwed onto in the screwed hole with fixing axle and the motor shaft gone up.
As the 4th kind of embodiment of the present invention; Referring to Fig. 5: the synchronous pulley 3 on above-mentioned on the axle is connected with the motor shaft 11 of drive motors through shaft coupling 10 and is: the side on the synchronous pulley axis is one-body molded to have sleeve 100; Radially be provided with screwed hole on the sleeve; Described upward axle or motor shaft are plugged in the sleeve and are screwed onto in the screwed hole fixing through bolt; Radially be provided with the long screwed hole 32 that is communicated with the synchronous pulley centre bore on the teeth groove 31 of described synchronous pulley, described upward axle or motor shaft are plugged in the synchronous pulley centre bore and are screwed onto in the long screwed hole 32 fixing through bolt.
Backsewing unit above-mentioned is: be connected with the connecting rod of falling the feeding 9 that matches and move with the crank of falling the feeding 8 on the oscillating feed device; One end of the described crank of falling the feeding 8 is provided with the roller pin 80 that drives the link motion of falling the feeding; The other end is fixed with to be supported on and backstitches wrench shaft 81 on the head shell, backstitches wrench shaft and backstitches spanner and be connected mutually.
Backstitch the right side that spanner is arranged on synchronous band and be above-mentioned, the right-hand member that backstitches wrench shaft 81 passes extending the right side of synchronous band with 4 synchronously and be fixed with in its right part and backstitching wrench 2 of annular.
The ratio of the reference diameter of the synchronous pulley on the synchronous pulley 3 on above-mentioned on the axle and the lower shaft is 2: 1.Rotating ratio according to diaxon is different, adopts the synchronous pulley of corresponding reference diameter, and then is in transmission connection through synchronous band, and upper and lower its sync rates of axle of this transmission mechanism is high, therefore in Sewing machines work process, processes more accurate.
The foregoing description is merely preferred embodiment of the present invention, is not to limit protection scope of the present invention according to this, so: all equivalences of doing according to structure of the present invention, shape, principle change, and all should be covered by within protection scope of the present invention.
Claims (8)
1. the driving mechanism of a flat seam machine; Comprise on the Sewing machines axle (1), lower shaft and backstitch spanner (2); It is characterized in that: a described end of going up axle (1) and lower shaft all is equipped with synchronous pulley (3); Synchronous pulley (3) one sides on the last axle are connected through the motor shaft (11) of shaft coupling (10) with drive motors; Synchronous pulley (3) on the last axle and the synchronous pulley on the lower shaft are through band (4) transmission synchronously; The opposite side that is positioned at the synchronous pulley (3) on the axle is separately installed with through two eccentric wheels (12) lifts tooth connecting rod and feeding connecting rod (5); Synchronous pulley is arranged in the independently sealed chamber that is partitioned into seal diaphragm (6) with synchronous band (4), or eccentric wheel, synchronous pulley and synchronous band all be arranged in the independently sealed chamber that is partitioned into seal diaphragm (6), and described feeding connecting rod (5) passes through oscillating feed device connection feed spool (51); The oscillating feed device is connected with through Backsewing unit and backstitches spanner (2), describedly backstitches left side or the right side that spanner (2) is arranged on synchronous band (4).
2. the driving mechanism of a kind of flat seam machine according to claim 1; It is characterized in that: described seal diaphragm (6) is arranged on the body inner chamber and the body inwall is one-body molded; Seal diaphragm (6) is provided with the through hole that passes axle usefulness, is installed with in the through hole and the counterrotating oil sealing of last axle.
3. the driving mechanism of a kind of flat seam machine according to claim 1; It is characterized in that: the described synchronous pulley of going up on the axle (3) is connected with the motor shaft (11) of drive motors through shaft coupling (10) and is: this synchronous pulley (3) is provided with the groove that is connected with shaft coupling (10) one ends; One end of shaft coupling is plugged in the groove; The other end of shaft coupling is fixedly connected with motor shaft, is provided with elastic buffer sheet (7) between the groove on shaft coupling and the synchronous pulley.
4. the driving mechanism of a kind of flat seam machine according to claim 1; It is characterized in that: the described synchronous pulley of going up on the axle (3) is connected with the motor shaft (11) of drive motors through shaft coupling (10) and is: one-body molded on the one or both ends on synchronous pulley (3) axis have a sleeve (100); All radially be provided with screwed hole on the sleeve (100), described going up in the sleeve that axle (1) and motor shaft (11) all be plugged in two ends and through bolt is screwed onto in the screwed hole with fixing axle and the motor shaft gone up.
5. the driving mechanism of a kind of flat seam machine according to claim 1; It is characterized in that: the described synchronous pulley of going up on the axle (3) is connected with the motor shaft (11) of drive motors through shaft coupling (10) and is: the side on the synchronous pulley axis is one-body molded to have sleeve (100); Radially be provided with screwed hole on the sleeve; Described upward axle or motor shaft are plugged in the sleeve and are screwed onto in the screwed hole fixing through bolt; Radially be provided with the long screwed hole (32) that is communicated with the synchronous pulley centre bore on the teeth groove of described synchronous pulley (31), described upward axle or motor shaft are plugged in the synchronous pulley centre bore and are screwed onto in the long screwed hole (32) fixing through bolt.
6. the driving mechanism of a kind of flat seam machine according to claim 1; It is characterized in that: described Backsewing unit is: be connected with the connecting rod of falling the feeding (9) that matches and move with the crank of falling the feeding (8) on the oscillating feed device; One end of the described crank of falling the feeding (8) is provided with the roller pin (80) that drives the link motion of falling the feeding; The other end is fixed with to be supported on and backstitches wrench shaft (81) on the head shell, backstitches wrench shaft and backstitches spanner and be connected mutually.
7. the driving mechanism of a kind of flat seam machine according to claim 6; It is characterized in that: describedly backstitch the right side that spanner is arranged on synchronous band and be, the synchronous band (4) that the right-hand member that backstitches wrench shaft (81) passes annular extends the right side of synchronous band and is fixed with in its right part and backstitches wrench (2).
8. according to the driving mechanism of claim 1 or 2 or 3 or 4 or 5 described a kind of flat seam machine, it is characterized in that: the ratio of the synchronous pulley (3) on the described upward axle and the reference diameter of the synchronous pulley on the lower shaft is 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213240.0A CN102720012B (en) | 2012-06-22 | 2012-06-22 | Driving mechanism of level sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213240.0A CN102720012B (en) | 2012-06-22 | 2012-06-22 | Driving mechanism of level sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720012A true CN102720012A (en) | 2012-10-10 |
| CN102720012B CN102720012B (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210213240.0A Active CN102720012B (en) | 2012-06-22 | 2012-06-22 | Driving mechanism of level sewing machine |
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| Country | Link |
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| CN (1) | CN102720012B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556408A (en) * | 2013-10-29 | 2014-02-05 | 阮孟定 | Component transmission gear of sewing machine |
| CN103774354A (en) * | 2014-01-26 | 2014-05-07 | 上海富山精密机械科技有限公司 | Installation structure of computer lockstitch sewing machine driving mechanism |
| CN107090670A (en) * | 2017-07-05 | 2017-08-25 | 杰克缝纫机股份有限公司 | A kind of thick stuff sewing machine |
| CN110708895A (en) * | 2019-10-18 | 2020-01-17 | 王育安 | Aluminum substrate machining process |
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|---|---|---|---|---|
| CN2408127Y (en) * | 2000-01-17 | 2000-11-29 | 杨碧华 | Reverse sewing device for industrial sewing machine |
| CN101307531A (en) * | 2007-05-14 | 2008-11-19 | 日星产业缝制机械株式会社 | Electric machine straight-link type sewing machine feeding device |
| CN101314900A (en) * | 2008-07-21 | 2008-12-03 | 张章生 | Fully sealing transmission mechanism of caracol hook race sewing machine |
| US7565873B2 (en) * | 2007-03-05 | 2009-07-28 | Brother Kogyo Kabushiki Kaisha | Sewing machine |
| CN202688660U (en) * | 2012-06-22 | 2013-01-23 | 新杰克缝纫机股份有限公司 | Driving mechanism of normal sewing machine |
-
2012
- 2012-06-22 CN CN201210213240.0A patent/CN102720012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2408127Y (en) * | 2000-01-17 | 2000-11-29 | 杨碧华 | Reverse sewing device for industrial sewing machine |
| US7565873B2 (en) * | 2007-03-05 | 2009-07-28 | Brother Kogyo Kabushiki Kaisha | Sewing machine |
| CN101307531A (en) * | 2007-05-14 | 2008-11-19 | 日星产业缝制机械株式会社 | Electric machine straight-link type sewing machine feeding device |
| CN101314900A (en) * | 2008-07-21 | 2008-12-03 | 张章生 | Fully sealing transmission mechanism of caracol hook race sewing machine |
| CN202688660U (en) * | 2012-06-22 | 2013-01-23 | 新杰克缝纫机股份有限公司 | Driving mechanism of normal sewing machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556408A (en) * | 2013-10-29 | 2014-02-05 | 阮孟定 | Component transmission gear of sewing machine |
| CN103556408B (en) * | 2013-10-29 | 2016-06-22 | 阮孟定 | A kind of accessaries of sewing machine actuating device |
| CN103774354A (en) * | 2014-01-26 | 2014-05-07 | 上海富山精密机械科技有限公司 | Installation structure of computer lockstitch sewing machine driving mechanism |
| CN107090670A (en) * | 2017-07-05 | 2017-08-25 | 杰克缝纫机股份有限公司 | A kind of thick stuff sewing machine |
| CN110708895A (en) * | 2019-10-18 | 2020-01-17 | 王育安 | Aluminum substrate machining process |
| CN110708895B (en) * | 2019-10-18 | 2024-03-12 | 深圳市鑫荣进绝缘材料有限公司 | Aluminum substrate processing technology |
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| CN102720012B (en) | 2014-02-19 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JACK SEWING CO., LTD. Free format text: FORMER NAME: NEW JACK SEWING MACHINE CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 318000 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee after: JACK SEWING MACHINE CO., LTD. Address before: 318010 Taizhou Airport Road, Jiaojiang District, Zhejiang, No. 15 Patentee before: New Jack Sewing Machine Co., Ltd. |
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| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318000 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |