CN205035620U - Transmission mechanism of sewing machine - Google Patents
Transmission mechanism of sewing machine Download PDFInfo
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- CN205035620U CN205035620U CN201520770366.7U CN201520770366U CN205035620U CN 205035620 U CN205035620 U CN 205035620U CN 201520770366 U CN201520770366 U CN 201520770366U CN 205035620 U CN205035620 U CN 205035620U
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- synchronous pulley
- pulley
- regulating wheel
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Abstract
The utility model belongs to the technical field of sewing machine, refer in particular to a transmission mechanism of sewing machine, including all pivots, lower and take -up pulley regulating spindle, be provided with big synchronous pulley in that the turnover is epaxial, the lower epaxial axle synchronous pulley that is provided with down is provided with the take -up pulley on the take -up pulley regulating spindle, and at the take -up pulley, be provided with the double rack hold -in range outside the synchronous pulley greatly, the transmission is connected to take -up pulley, gear wheel and the inboard tooth of double rack hold -in range, and the transmission is connected to a lower synchronous pulley and the outside tooth of double rack hold -in range, transmission and last hub connection and drive action are passed through in the week pivot, the utility model discloses need not soak in lubricating oil at operation in -process double rack hold -in range, the structure has been simplified in the design that can save gear box box on the bottom plate, has practiced thrift the cost, can adjust the tension of double rack hold -in range through the take -up pulley, and need not realize the apolegamy through changing bringing in step of different length tolerance, so also simplify the degree of difficulty among the assembling process, it is more convenient to use.
Description
Technical field:
The utility model belongs to sewing machine technique field, refers in particular to a kind of Sewing machines transmission mechanism.
Background technology:
Existing transmission mechanism is the transformation transmission being realized rotating speed and rotation direction by group gear of on feed lifting rock shaft and lower shaft, is to realize rotation direction oppositely and the relation (as shown in Figure 1) of rotating speed twice by a pair gear.Adopt the machine of this transmission mechanism to need to match a pair gear when assembling, installation process more complicated, difficulty is high, selects a good matching relationship after installing what a gear 1 by another gear 2 changing different tolerance.Meanwhile, the on-stream gear 1,2 that must allow is in lubricating oil, the lubrication of such guarantee gear 1,2.Therefore, adopt gear-driven scheme, the gear-box of a gear box cover and base plate 3 must be installed on base plate 3, form gear case body, complex structure.
Summary of the invention:
The purpose of this utility model is to provide a kind of Sewing machines transmission mechanism assembling simple, structure and simplify.
The utility model is achieved in that
Sewing machines transmission mechanism, include all rotating shafts, lower shaft and regulating wheel regulating shaft, all rotating shafts are provided with large synchronous pulley, lower shaft is provided with lower shaft synchronous pulley, regulating wheel regulating shaft is provided with regulating wheel, double cog synchronous belt is outside equipped with at regulating wheel, large synchronous pulley, the inner tines connection for transmission of regulating wheel, gear wheel and double cog synchronous belt, the outside tooth connection for transmission of lower shaft synchronous pulley and double cog synchronous belt, described all rotating shafts are connected and drive actions with upper axle by transmission device.
In technique scheme, described regulating wheel regulating shaft is eccentric shaft, and the setting angle regulating regulating wheel regulating shaft and then the position regulating regulating wheel realize regulating Timing Belt tension force, and described regulating wheel regulating shaft is fixed by screws on base plate.
In technique scheme, described transmission device comprises the small synchronous pulley be arranged in all rotating shafts, and upper axle is provided with axle synchronous pulley, is connected between small synchronous pulley with upper axle synchronous pulley by Timing Belt, described upper axle is connected with motor, by motor-driven rotation.
In technique scheme, the number of teeth of the large synchronous pulley in described all rotating shafts is the twice of the lower shaft synchronous pulley number of teeth.
The advantage that the utility model is given prominence to compared to existing technology is:
1, the utility model double cog synchronous belt in operation process does not need to be immersed in lubricating oil, can save the design of base plate upper gear box casing, simplify the structure, save cost;
2, the utility model can regulate the tension force of double cog synchronous belt by regulating wheel, and does not need to realize apolegamy by changing synchronously bringing of different length tolerance, also simplify the difficulty in assembling process like this, uses convenient;
3, the utility model kind of drive achieves the non-oil ultra high vacuum system of lower shaft motion transmission on Sewing machines, more clean environment firendly;
4, the utility model opposed pair gear drive noise change in operation process, generates heat also less.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of background technology;
Fig. 2 is schematic diagram of the present utility model;
Fig. 3 is upward view of the present utility model;
Fig. 4 is the schematic perspective view that the utility model is unkitted base plate;
Fig. 5 is the front view that the utility model is unkitted base plate;
Fig. 6 is the schematic diagram of regulating wheel regulating shaft of the present utility model.
Detailed description of the invention:
With specific embodiment, the utility model is further described below, see Fig. 2-6:
Sewing machines transmission mechanism, include all rotating shafts 10, lower shaft 20 and regulating wheel regulating shaft 30, week rotating shaft 10, lower shaft 20 and regulating wheel regulating shaft 30 are arranged on base plate 40, all rotating shafts 10 are provided with large synchronous pulley 50, lower shaft 20 is provided with lower shaft synchronous pulley 60, regulating wheel regulating shaft 30 is provided with regulating wheel 70, at regulating wheel 70, large synchronous pulley 50 is outside equipped with double cog synchronous belt 80, regulating wheel 60, the inner tines connection for transmission of large synchronous pulley 50 and double cog synchronous belt 80, the outside tooth connection for transmission of lower shaft synchronous pulley 60 and double cog synchronous belt 80, described all rotating shafts 10 are connected and drive actions with upper axle 90 by transmission device.Be installed with the rotating shuttle 170 of Sewing machines in the front end of lower shaft 20, the rotation speed requirements of sewing-machine rotating shuttle 170 is twices of upper axle 90 rotating speed, and direction of rotation is contrary.
In technique scheme, described regulating wheel regulating shaft 3 is eccentric shaft, the setting angle regulating regulating wheel regulating shaft 30 and then the position regulating regulating wheel realize regulating double cog synchronous belt 80 tension force, and described regulating wheel regulating shaft is fixed on base plate 40 by spiral shell 100 nail.
Described regulating wheel regulating shaft 30 is made up of axle 1 and axle 2 302, axle 1, axle 2 302 eccentric setting, and the diameter of axle 1 is less than the diameter of axle 2 302, step surface 303 is formed between axle 1 and axle 2 302, regulating wheel 70 is set with outside axle 1, and fixed by back-up ring 110, axle 2 302 is arranged in the installing hole of base plate 40, turning cylinder 2 302, axle 1 eccentric rotary regulates the position of regulating wheel 70 to realize regulating double cog synchronous belt 80 tension force, and by screw 100 fixed axis 2 302.
In technique scheme, described transmission device comprises the small synchronous pulley 120 be arranged in all rotating shafts 10, upper axle 90 is provided with axle synchronous pulley 130, be connected by Timing Belt 140 between small synchronous pulley 120 with upper axle synchronous pulley 130, described upper axle 90 is connected with motor 160 by shaft coupling 150, drives upper axle 90 to rotate by motor 160.
In technique scheme, the number of teeth of the large synchronous pulley 50 in described all rotating shafts 10 is twices of lower shaft synchronous pulley 60 number of teeth.
Operation principle of the present utility model:
Motor 160 drives upper axle 90 to rotate by shaft coupling 150, upper axle synchronous pulley 130 and then upper axle 90 rotates, by Timing Belt 140, the rotation of upper axle 90 is delivered to all rotating shafts 10 of base plate 40, the number of teeth of the large synchronous pulley 50 that week rotating shaft 10 is installed is twices of lower shaft synchronous pulley 60, large synchronous pulley 50 is connected by double cog synchronous belt 80 with lower shaft synchronous pulley 60, lower shaft synchronous pulley 60 is connected with the external tooth of double cog synchronous belt 80, in order to realize the transmission of double cog synchronous belt 80, regulating wheel 70 is used for realizing the Movement transmit of double cog synchronous belt 80 and the adjustment of double cog synchronous belt 80 tension force.Thus it is contrary with upper axle 90 rotation direction to realize lower shaft 20, lower shaft 20 is movement relations of upper axle 90 rotating speed twice.
Above-described embodiment is only one of preferred embodiment of the present utility model; not limit practical range of the present utility model with this; therefore: all equivalence changes done according to shape of the present utility model, structure, principle, all should be covered by within protection domain of the present utility model.
Claims (5)
1. Sewing machines transmission mechanism, it is characterized in that: include all rotating shafts, lower shaft and regulating wheel regulating shaft, all rotating shafts are provided with synchronous pulley, lower shaft is provided with lower shaft synchronous pulley, regulating wheel regulating shaft is provided with regulating wheel, double cog synchronous belt is outside equipped with at regulating wheel, large synchronous pulley, the inner tines connection for transmission of regulating wheel, large synchronous pulley and double cog synchronous belt, the outside tooth connection for transmission of lower shaft synchronous pulley and double cog synchronous belt, described all rotating shafts are connected and drive actions with upper axle by transmission device.
2. Sewing machines transmission mechanism according to claim 1, it is characterized in that: described regulating wheel regulating shaft is eccentric shaft, the setting angle regulating regulating wheel regulating shaft and then the position regulating regulating wheel realize regulating Timing Belt tension force, and described regulating wheel regulating shaft is fixed by screws on base plate.
3. Sewing machines transmission mechanism according to claim 2, it is characterized in that: described regulating wheel regulating shaft is made up of axle one and axle two, axle one, axle two eccentric setting, and the diameter of axle one is less than the diameter of axle two, between axle one and axle two, be formed with step surface, regulating wheel is set with outside axle one, and fixed by back-up ring, axle two is arranged in the installing hole of base plate, turning cylinder two, axle one eccentric rotary regulates the position of regulating wheel to realize regulating double cog synchronous belt tension force, and by screw fixed axis two.
4. Sewing machines transmission mechanism according to claim 1, it is characterized in that: described transmission device comprises the small synchronous pulley be arranged in all rotating shafts, upper axle is provided with axle synchronous pulley, be connected by Timing Belt between small synchronous pulley with upper axle synchronous pulley, described upper axle is connected with motor, by motor-driven rotation.
5. Sewing machines transmission mechanism according to claim 1, is characterized in that: the number of teeth of the large synchronous pulley in described all rotating shafts is the twice of the lower shaft synchronous pulley number of teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770366.7U CN205035620U (en) | 2015-09-30 | 2015-09-30 | Transmission mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770366.7U CN205035620U (en) | 2015-09-30 | 2015-09-30 | Transmission mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205035620U true CN205035620U (en) | 2016-02-17 |
Family
ID=55294532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520770366.7U Active CN205035620U (en) | 2015-09-30 | 2015-09-30 | Transmission mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205035620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177880A (en) * | 2015-09-30 | 2015-12-23 | 杰克缝纫机股份有限公司 | Transmission mechanism of sewing machine |
| CN110699874A (en) * | 2019-11-01 | 2020-01-17 | 浙江龙泰缝纫设备有限公司 | Transmission structure of sewing machine |
-
2015
- 2015-09-30 CN CN201520770366.7U patent/CN205035620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177880A (en) * | 2015-09-30 | 2015-12-23 | 杰克缝纫机股份有限公司 | Transmission mechanism of sewing machine |
| CN110699874A (en) * | 2019-11-01 | 2020-01-17 | 浙江龙泰缝纫设备有限公司 | Transmission structure of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| 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. |