CN202688660U - Driving mechanism of normal sewing machine - Google Patents
Driving mechanism of normal sewing machine Download PDFInfo
- Publication number
- CN202688660U CN202688660U CN 201220297729 CN201220297729U CN202688660U CN 202688660 U CN202688660 U CN 202688660U CN 201220297729 CN201220297729 CN 201220297729 CN 201220297729 U CN201220297729 U CN 201220297729U CN 202688660 U CN202688660 U CN 202688660U
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- synchronous pulley
- shaft
- driving mechanism
- upper axle
- axle
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Abstract
The utility model provides a driving mechanism of a normal sewing machine, and belongs to the technical field of sewing machines and the driving mechanism is used for solving the problems of complicate structure, high mounting requirements and the like in the prior art. The driving mechanism of the normal sewing machine comprises an upper shaft and a lower shaft of a sewing machine, and a backstitch wrench, wherein synchronous belt wheels are arranged the one ends of the upper shaft and the lower shaft, one side of a synchronous belt wheel on the upper shaft is fixedly connected with the motor shaft of a driving motor, the synchronous belt wheel on the upper shaft and a synchronous belt wheel on the lower shaft are in transmission by virtue of a synchronous belt, a feed lifting connection rod and a material feeding connection rod are respectively arranged on the other side of the synchronous belt wheel on the upper shaft by virtue of two eccentric wheels, and the synchronous belt wheels and the synchronous belt are arranged in an independent sealing cavity separated by a sealing baffle plate, or the eccentric wheels, the synchronous belt wheels and the synchronous belt are all arranged in the independent sealing cavity separated by the sealing baffle plate. The driving mechanism has the advantages that the structure is simple and practical, the use performance is excellent, and the like.
Description
Technical field
The utility model 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 by belt pulley transmission feed lifting rock shaft, feed lifting rock shaft is again by the gear drive lower shaft, there is following problem in this structure: the one, and higher to the required precision of gear, and structure is comparatively complicated, required part is also more, has caused part processing and assembly difficulty large, has influence on performance and the maintenance of complete machine, increased production cost, the 2nd, wear and tear after long-term the use because gear is intermeshing, then have influence on lower shaft and upper axle speed ratio, produce easily 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 purpose of this utility model has provided the driving mechanism of the flat seam machine that a kind of structural stability is strong, serviceability is good.
The purpose of this utility model is achieved in that a kind of driving mechanism of flat seam machine, comprise axle on the Sewing machines, lower shaft and backstitch spanner, it is characterized in that: an end of described upper axle and lower shaft all is equipped with synchronous pulley, synchronous pulley one side on the upper axle is connected by the motor shaft of shaft coupling and drive motors, synchronous pulley on the upper axle and the synchronous pulley on the lower shaft pass through toothed belt transmission, the opposite side that is positioned at the synchronous pulley on the axle is separately installed with by two eccentric wheels lifts tooth connecting rod and feeding connecting rod, synchronous pulley and Timing Belt are arranged in the independently sealed chamber that is partitioned into seal diaphragm, or eccentric wheel, synchronous pulley and Timing Belt all are arranged in the independently sealed chamber that is partitioned into seal diaphragm, described feeding connecting rod connects feed spool by the oscillating feed device, the oscillating feed device is connected with by Backsewing unit and backstitches spanner, describedly backstitches left side or the right side that spanner is arranged on Timing Belt.
Operation principle of the present utility model is directly to drive lower shaft by upper axle to rotate, to connect by toothed belt transmission, its sync rates of the upper and lower axle of this structure is high, therefore in Sewing machines work process, process more accurate, synchronous pulley on the upper axle, Timing Belt all are arranged in the independently sealed chamber that is partitioned into seal diaphragm, avoided skidding because entering of lubricating oil causes work, guaranteed stability in use, the fixed position that backstitches simultaneously spanner is positioned at left side or the right side of this sewing machine synchronous belt, 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 and passes the through hole that axle is used, and is installed with in the through hole and the counterrotating oil sealing of upper axle.
In the driving mechanism of above-mentioned a kind of flat seam machine, synchronous pulley on the described upper axle is connected with the motor shaft of drive motors by shaft coupling: be provided with the groove that is connected with shaft coupling one end on this synchronous pulley, 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, synchronous pulley on the described upper axle is connected with the motor shaft of drive motors by 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 upper axle and motor shaft all are plugged in the sleeve at two ends and by bolt and are screwed onto in the screwed hole with fixing upper axle and motor shaft.
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, synchronous pulley on the described upper axle is connected with the motor shaft of drive motors by shaft coupling: the side on the synchronous pulley axis is one-body molded sleeve, radially be provided with screwed hole on the sleeve, described upper axle or motor shaft are plugged in the sleeve and are screwed onto in the screwed hole fixing by 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 upper axle or motor shaft are plugged in the synchronous pulley centre bore and are screwed onto in the long screwed hole fixing by bolt.
In the driving mechanism of above-mentioned a kind of flat seam machine, describedly backstitch the right side that spanner is arranged on Timing Belt and be, the Timing Belt that the right-hand member that backstitches wrench shaft passes annular extends the right side of Timing Belt 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 upper axle and the reference diameter of the synchronous pulley on the lower shaft is 2: 1.
The utility model compared to existing technology outstanding and useful technique effect is:
1, the utility model is to adopt upper axle directly to drive lower shaft by Timing Belt, synchronous pulley, has omitted original gear drive or link 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 utility model and synchronous pulley the elastic buffer sheet, make the transmission of power of axle on electric machine main shaft and the Sewing machines steady, the waste that has reduced energy has guaranteed the service behaviour of Sewing machines simultaneously, or having adopted hard upper axle and the motor shaft of connecting of the integrated sleeve of synchronous pulley, syndeton is simple, practical function is good.
3, the wrench shaft that backstitches by different length of the present utility model is realized backstitching left side or the right side that spanner is arranged on Timing Belt, and structure is very clear, practical.
4, the utility model be by seal diaphragm with synchronous pulley, Timing Belt and eccentric wheel respectively in being located at two chambeies; prevented that lubricating oil from entering to skidding of causing in the chamber of Timing Belt, synchronous pulley; guaranteed the stability of using; or with synchronous pulley, Timing Belt and eccentric wheel in being located at same annular seal space, simultaneously to the feeding on the eccentric wheel, lift the tooth connecting rod and seal anti-skidding protection.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is drive connection structure chart of the present utility model.
Fig. 3 is the second syndeton schematic diagram and the cutaway view of synchronous pulley of the present utility model and each axle.
Fig. 4 is the third syndeton schematic diagram and cutaway view of synchronous pulley of the present utility model and each axle.
Fig. 5 is the 4th kind of syndeton schematic diagram and cutaway view of synchronous pulley of the present utility model and each axle.
Fig. 6 is the first syndeton schematic diagram and the cutaway view of synchronous pulley of the present utility model and each axle.
Fig. 7 is the mounting structure cutaway view of seal diaphragm of the present utility model in body.
Fig. 8 is the similar alternative arrangements cutaway view of seal diaphragm of the present utility model in body.
The specific embodiment
The utility model 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 axle 1 on the Sewing machines, lower shaft and backstitch spanner 2, it is characterized in that: described upper axle 1 all is equipped with synchronous pulley 3 with an end of lower shaft, synchronous pulley 3 one sides on the upper axle are connected by the motor shaft 11 of shaft coupling 10 with drive motors, synchronous pulley 3 on the upper axle and the synchronous pulley on the lower shaft are by Timing Belt 4 transmissions, the opposite side that is positioned at the synchronous pulley 3 on the axle is separately installed with by two eccentric wheels 12 lifts tooth connecting rod and feeding connecting rod 5, synchronous pulley and Timing Belt 4 are arranged in the independently sealed chamber that is partitioned into seal diaphragm 6, or eccentric wheel, synchronous pulley and Timing Belt all are arranged in the independently sealed chamber that is partitioned into seal diaphragm 6, described feeding connecting rod 5 connects feed spool 51 by the oscillating feed device, the oscillating feed device is connected with by Backsewing unit and backstitches spanner 2, describedly backstitches left side or the right side that spanner 2 is arranged on Timing Belt 4.Operation principle of the present utility model is directly to drive lower shaft by upper axle 1 to rotate, to be in transmission connection by Timing Belt 4, on this structure, its sync rates of lower shaft is high, therefore in Sewing machines work process, process more accurate, synchronous pulley 3 on the upper axle, Timing Belt 4 all is arranged in the independently sealed chamber that is partitioned into seal diaphragm or the opposite side that is positioned at the synchronous pulley 3 on the upper axle is separately installed with by two eccentric wheels 12 and lifts tooth connecting rod and feeding connecting rod 5, synchronous pulley and Timing Belt 4 are arranged in the independently sealed chamber that is partitioned into seal diaphragm 6, avoided skidding because entering of lubricating oil causes work, guaranteed stability in use, the fixed position that backstitches simultaneously spanner 2 is positioned at left side or the right side of this sewing machine synchronous belt 4, 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 and passes the through hole that axle is used, and is installed with in the through hole and the counterrotating oil sealing of upper axle.
As the first embodiment of the present utility model, referring to Fig. 6: the synchronous pulley 3 on above-mentioned upper axle is connected with the motor shaft 11 of drive motors by 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 the second of the present utility model and the third embodiment, be connected with Fig. 4 to be connected with the motor shaft 11 of drive motors by shaft coupling 10 at the synchronous pulley 3 on the above-mentioned upper axle referring to Fig. 3 and be: 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 upper axle 1 and motor shaft 11 all are plugged in the sleeve at two ends and by bolt and are screwed onto in the screwed hole with fixing upper axle and motor shaft.
As the 4th kind of embodiment of the present utility model, referring to Fig. 5: the synchronous pulley 3 on above-mentioned upper axle is connected with the motor shaft 11 of drive motors by shaft coupling 10 and is: the side on the synchronous pulley axis is one-body molded sleeve 100, radially be provided with screwed hole on the sleeve, described upper axle or motor shaft are plugged in the sleeve and are screwed onto in the screwed hole fixing by 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 upper axle or motor shaft are plugged in the synchronous pulley centre bore and by bolt and are screwed onto long screwed hole 32 interior fixing.
At above-mentioned Backsewing unit be: the oscillating feed device is connected with the connecting rod of falling the feeding 9 that matches and move with the crank of falling the feeding 8, 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 Timing Belt and be above-mentioned, the Timing Belt 4 that the right-hand member that backstitches wrench shaft 81 passes annular extends the right side of Timing Belt and is fixed with in its right part and backstitches wrench 2.
The ratio of the reference diameter of the synchronous pulley on the synchronous pulley 3 on the above-mentioned upper axle and lower shaft is 2: 1.Rotating ratio according to diaxon is different, adopts the synchronous pulley of corresponding reference diameter, and then connects by toothed belt transmission, and its sync rates of the upper and lower axle of this transmission mechanism is high, therefore in Sewing machines work process, processes more accurate.
Above-described embodiment is preferred embodiment of the present utility model only, is not to limit according to this protection domain of the present utility model, so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.
Claims (8)
1. the driving mechanism of a flat seam machine, comprise axle on the Sewing machines (1), lower shaft and backstitch spanner (2), it is characterized in that: described upper axle (1) all is equipped with synchronous pulley (3) with an end of lower shaft, synchronous pulley (3) one sides on the upper axle are connected by the motor shaft (11) of shaft coupling (10) with drive motors, synchronous pulley on synchronous pulley on the upper axle (3) and the lower shaft is by Timing Belt (4) transmission, the opposite side that is positioned at the synchronous pulley (3) on the axle is separately installed with by two eccentric wheels (12) lifts tooth connecting rod and feeding connecting rod (5), synchronous pulley and Timing Belt (4) are arranged in the independently sealed chamber that is partitioned into seal diaphragm (6), or eccentric wheel, synchronous pulley and Timing Belt all are arranged in the independently sealed chamber that is partitioned into seal diaphragm (6), described feeding connecting rod (5) connects feed spool (51) by the oscillating feed device, the oscillating feed device is connected with by Backsewing unit and backstitches spanner (2), describedly backstitches left side or the right side that spanner (2) is arranged on Timing Belt (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 and passes the through hole that axle is used, and is installed with in the through hole and the counterrotating oil sealing of upper axle.
3. the driving mechanism of a kind of flat seam machine according to claim 1, it is characterized in that: the synchronous pulley (3) on the described upper axle is connected with the motor shaft (11) of drive motors by shaft coupling (10) and is: be provided with the groove that is connected with shaft coupling (10) one ends on this synchronous pulley (3), 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 synchronous pulley (3) on the described upper axle is connected with the motor shaft (11) of drive motors by 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 upper axle (1) and motor shaft (11) all are plugged in the sleeve at two ends and by bolt and are screwed onto in the screwed hole with fixing upper axle and motor shaft.
5. the driving mechanism of a kind of flat seam machine according to claim 1, it is characterized in that: the synchronous pulley (3) on the described upper axle is connected with the motor shaft (11) of drive motors by shaft coupling (10) and is: the side on the synchronous pulley axis is one-body molded sleeve (100), radially be provided with screwed hole on the sleeve, described upper axle or motor shaft are plugged in the sleeve and are screwed onto in the screwed hole fixing by 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 upper axle or motor shaft are plugged in the synchronous pulley centre bore and are screwed onto in the long screwed hole (32) fixing by 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 Timing Belt and be, the Timing Belt (4) that the right-hand member that backstitches wrench shaft (81) passes annular extends the right side of Timing Belt and is fixed with in its right part and backstitches wrench (2).
8. it is characterized in that according to claim 1 and 2 or the driving mechanism of 3 or 4 or 5 described a kind of flat seam machine: the ratio of the reference diameter of the synchronous pulley on the synchronous pulley (3) on the described upper axle and the lower shaft is 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297729 CN202688660U (en) | 2012-06-22 | 2012-06-22 | Driving mechanism of normal sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297729 CN202688660U (en) | 2012-06-22 | 2012-06-22 | Driving mechanism of normal sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688660U true CN202688660U (en) | 2013-01-23 |
Family
ID=47544307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220297729 Withdrawn - After Issue CN202688660U (en) | 2012-06-22 | 2012-06-22 | Driving mechanism of normal sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720012A (en) * | 2012-06-22 | 2012-10-10 | 新杰克缝纫机股份有限公司 | Driving mechanism of level sewing machine |
| CN103952869A (en) * | 2014-05-21 | 2014-07-30 | 新杰克缝纫机股份有限公司 | Oil buffer backstitch electromagnet mechanism |
-
2012
- 2012-06-22 CN CN 201220297729 patent/CN202688660U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720012A (en) * | 2012-06-22 | 2012-10-10 | 新杰克缝纫机股份有限公司 | Driving mechanism of level sewing machine |
| CN102720012B (en) * | 2012-06-22 | 2014-02-19 | 新杰克缝纫机股份有限公司 | Driving mechanism of level sewing machine |
| CN103952869A (en) * | 2014-05-21 | 2014-07-30 | 新杰克缝纫机股份有限公司 | Oil buffer backstitch electromagnet mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20140219 |
|
| RGAV | Abandon patent right to avoid regrant |