CN101660251B - Upper shaft direct drive electric sewing machine - Google Patents
Upper shaft direct drive electric sewing machine Download PDFInfo
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- CN101660251B CN101660251B CN2009101808289A CN200910180828A CN101660251B CN 101660251 B CN101660251 B CN 101660251B CN 2009101808289 A CN2009101808289 A CN 2009101808289A CN 200910180828 A CN200910180828 A CN 200910180828A CN 101660251 B CN101660251 B CN 101660251B
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- sewing machine
- electric motor
- shaft
- synchronous belt
- output shaft
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to an electric sewing machine, in particular to an upper shaft direct drive electric sewing machine, comprising a shell, an electric motor, a synchronous belt mechanism for driving a lower shaft and a coiling vehicle assembly. The electric motor is fixed in the shell; the extending end of the output shaft of the electric motor is directly connected with a balance crank shaft; a synchronous belt pulley in the synchronous belt mechanism is fixed on the output shaft of the electric motor; and a friction pulley in the coiling vehicle assembly is against the side surface of the synchronous belt pulley. The upper shaft of the sewing machine replaces with the output shaft of the electric motor to be directly connected with the balance crank shaft, therefore, the electric sewing machine has no problem of axes concentricity, removes a wire bonding pulley, drives the coiling vehicle assembly by the synchronous belt pulley, simplifies the design, reduces the cost, reduces the energy consumption of the electric motor, and is easier for assembling and remaining.
Description
Technical field
The present invention relates to a kind of electric sewer, particularly relate to a kind of upper shaft direct drive electric sewing machine.
Background technology
The main motion parts of electric sewer all drives through last axle like eedle, reel etc., and last axle is then by motor-driven.At present, the connected mode of last axle and motor flexibly connects and is rigidly connected two kinds, like Fig. 1, shown in Figure 2.Fig. 1 is a flexible connection mode; The output shaft of motor 15 is connected with last axle 11 through flexible connector 14, and flexible connector 14 is connected pawl with the right side and is formed by left side connection pawl, yielding rubber, and the cost of this connected mode flexible connector is higher; Complex manufacturing technology; And yielding rubber spare is easy to wear, on last axle, also is provided with simultaneously the routing wheel 13 that is used to drive reel assembly 12, spring bearing, bearing fixing sleeve etc. than multi-part, the comparative resistance increase; Energy consumption of electrical machinery is increased, and the casing difficulty of processing is relatively large.Fig. 2 is the mode of being rigidly connected; The output shaft of motor 23 is connected with last axle 21 through rigid connector 22; This mode is had relatively high expectations to output shaft, rigid connector 22 and last axle 21 threes' of motor 23 axiality, and difficulty of processing is big, improper meeting is installed damages motor; Cause energy consumption of electrical machinery bigger because of off-centre simultaneously, the body vibrations are bigger.Therefore, higher through the electric sewer cost of shaft joint connection motor and last axle at present, energy consumption of electrical machinery is big, the body vibrations are bigger.
Summary of the invention
Technical problem to be solved by this invention is to solve the problem that the electric sewer cost is higher, energy consumption of electrical machinery big, the body vibrations are bigger.
In order to solve the problems of the technologies described above; The technical scheme that the present invention adopted provides a kind of upper shaft direct drive electric sewing machine; Comprise casing, motor, be used to drive the synchronous band mechanism and the reel assembly of lower shaft, said motor is fixed in the casing, and the external part of motor output shaft directly connects balance crankshaft; Synchronous pulley in the band mechanism is fixed on the motor output shaft synchronously, and the friction pulley in the reel assembly offsets through the side surface of clutch and synchronous pulley.
The present invention, axle directly is connected with balance crankshaft on the alternative Sewing machines of motor output shaft, does not have the concentric problem of axis; And saved the routing wheel, and drive the reel assembly through synchronous pulley, simplified design; Reduce cost, energy consumption of electrical machinery is reduced, loading and unloading and maintenance are easier.
Description of drawings
Fig. 1 is existing flexible connection mode structural representation;
Fig. 2 is the existing mode structural representation that is rigidly connected;
Fig. 3 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made detailed explanation.
As shown in Figure 3, the present invention includes casing, motor 5, be used to drive the synchronous band mechanism and the reel assembly 3 of lower shaft, motor 5 is fixed in the casing; Motor output shaft 2 is an extension shaft; Its left end directly connects balance crankshaft 1, has replaced original axle of going up, the motion of balance crankshaft 1 driving machine needle assemblies; Synchronous pulley 4 in the band mechanism is fixed on the motor output shaft 2 synchronously; And through being with 6 to drive lower shaft 7 synchronously; Friction pulley in synchronous pulley 4 and the reel assembly 3 is oppositely arranged, and through clutch original in the reel assembly 3 synchronous pulley 4 is combined selectively with friction pulley, promptly when Sewing machines normally uses; Synchronous pulley 4 separates with friction pulley; When needs carry out spiral, pull clutch synchronous pulley 4 is abutted against with friction pulley, so driving reel assemblies 3, synchronous pulley 4 realizes the coiling functions.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under enlightenment of the present invention, making, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (1)
1. upper shaft direct drive electric sewing machine; Comprise casing, motor, be used to drive the synchronous band mechanism and the reel assembly of lower shaft; It is characterized in that said motor is fixed in the casing; The external part of motor output shaft directly connects balance crankshaft, is fixed on the motor output shaft with the synchronous pulley in the mechanism synchronously, and the friction pulley in the reel assembly offsets through the side surface of clutch and synchronous pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101808289A CN101660251B (en) | 2009-10-19 | 2009-10-19 | Upper shaft direct drive electric sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101808289A CN101660251B (en) | 2009-10-19 | 2009-10-19 | Upper shaft direct drive electric sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660251A CN101660251A (en) | 2010-03-03 |
| CN101660251B true CN101660251B (en) | 2012-07-04 |
Family
ID=41788495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101808289A Active CN101660251B (en) | 2009-10-19 | 2009-10-19 | Upper shaft direct drive electric sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101660251B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720013A (en) * | 2012-06-22 | 2012-10-10 | 新杰克缝纫机股份有限公司 | Direct drive structure of sewing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239159A (en) * | 1998-06-04 | 1999-12-22 | 重机株式会社 | Uper shaft directly-driving sewing machine |
| CN1321807A (en) * | 2000-04-27 | 2001-11-14 | 重机公司 | Sewig machine for sewing zigzag stitch |
| CN201214710Y (en) * | 2008-06-24 | 2009-04-01 | 薛秀尧 | Generator straightly driven sewing machine |
| CN201525947U (en) * | 2009-10-19 | 2010-07-14 | 张章生 | Upper shaft direct-drive type electric sewing machine |
-
2009
- 2009-10-19 CN CN2009101808289A patent/CN101660251B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1239159A (en) * | 1998-06-04 | 1999-12-22 | 重机株式会社 | Uper shaft directly-driving sewing machine |
| CN1321807A (en) * | 2000-04-27 | 2001-11-14 | 重机公司 | Sewig machine for sewing zigzag stitch |
| CN201214710Y (en) * | 2008-06-24 | 2009-04-01 | 薛秀尧 | Generator straightly driven sewing machine |
| CN201525947U (en) * | 2009-10-19 | 2010-07-14 | 张章生 | Upper shaft direct-drive type electric sewing machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-93195A 2008.04.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101660251A (en) | 2010-03-03 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220406 Address after: 621052 No. 128, Wenwu Road, economic and Technological Development Zone, Mianyang City, Sichuan Province Patentee after: Sichuan Zhongfeng Heavy Industry Co.,Ltd. Address before: Yueqing City, Zhejiang province 325608 City Xiang Ma Village Patentee before: Zhang Zhangsheng |