CN205062390U - Sewing machine drawing -inroller turns to switching mechanism - Google Patents
Sewing machine drawing -inroller turns to switching mechanism Download PDFInfo
- Publication number
- CN205062390U CN205062390U CN201520843940.7U CN201520843940U CN205062390U CN 205062390 U CN205062390 U CN 205062390U CN 201520843940 U CN201520843940 U CN 201520843940U CN 205062390 U CN205062390 U CN 205062390U
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- CN
- China
- Prior art keywords
- rotating shaft
- inroller
- connecting rod
- sewing machine
- press down
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Abstract
The utility model discloses a sewing machine drawing -inroller turns to switching mechanism, it includes the drawing -inroller, is used for to drive transmission portion, underdrive portion on the drawing -inroller pivoted, it includes the pivot, goes up fixed block and lower fixed block, corotation bearing and reverses the bearing, pushes down the member, pushes down the pivot to go up transmission portion, push down the member with it pushes down the connecting rod to push down to be connected with between the pivot, the both ends that push down the connecting rod respectively with push down the member and push down pivot looks universal connection. The both ends that push down the connecting rod respectively with push down the member and push down pivot looks universal connection, it is smooth and easy to guarantee to push down the member swing, it does not have a time delay to ensure that the switching -over is also smooth and easy, sewing machine drawing -inroller turns to switching mechanism that unanimous and then pinhole when making the forward make up of pay -off volume when making the sewing machine forward make up with reverse making up and the pinhole when backward making up can coincide.
Description
Technical field
The utility model relates to Sewing machines, and particularly a kind of sewing machine feed wheel turns to switching mechanism.
Background technology
Current sewing machine feed wheel can realize forward feeding and reverse feeding, but easily block when switching is changed at existing switching mechanism, such as application number is the utility model patent of 201020656023.5, the application is really just to the improvement that the Sewing machines of this type turns to switching mechanism to do, the pressing down rod member 27 and press down rotating shaft 28 by realizing being in transmission connection with the connecting plate that presses down of both phase hinges of the Sewing machines of this type, press down connecting plate press down in process very easily stuck, cause commutation to have some setbacks and have time delay, and then drawing-inroller feeding amount is inconsistent when causing Sewing machines to rotate and reverse, pin hole dislocation when forward is made and oppositely made.
Utility model content
The purpose of this utility model be to provide a kind of switch drawing-inroller turn to smooth without time delay enable Sewing machines forward make consistent with feeding amount when oppositely making so that forward is made time the sewing machine feed wheel that overlaps with pin hole when oppositely making of pin hole turn to switching mechanism.
For achieving the above object, the technical solution of the utility model is: a kind of sewing machine feed wheel turns to switching mechanism, it comprises drawing-inroller, the upper driving portion rotated for driving described drawing-inroller, be connected to the underdrive portion between described upper driving portion and drawing-inroller, described upper driving portion comprises rotating shaft, to be sheathed in described upper rotating shaft and the upper fixed block be fixed in the frame of Sewing machines and lower fixed block, being sheathed on being respectively used in described upper rotating shaft drives described upper rotating shaft rotate forward with the rotating forward bearing of backwards rotation and reverse bearing, with fixed piece of phase hinge and for need in upper rotating shaft to press when commutating described on rotating shaft press down rod member, hinge presses down rotating shaft for what press down that rod member presses down described in driving on sewing machine frame, described press down rod member and described press down to be connected with between rotating shaft press down connecting rod, the described two ends pressing down connecting rod press down rod member with described respectively and press down that rotating shaft is mutually universal to be connected.
Optimize, the two ends of described connecting rod respectively with described press down rod member and press down rotating shaft be connected by cross universal connector.
Optimize, the two ends of described connecting rod respectively with described press down rod member and press down rotating shaft be connected by spherical universal connector.
Optimize, described underdrive portion comprises scalable connecting rod, to be in transmission connection mutually by helical gear with described drawing-inroller and the perpendicular lower rotary shaft of the pivot center of pivot center and described drawing-inroller, and the two ends of described scalable connecting rod are connected by cross universal connector with upper rotating shaft with described lower rotary shaft.
The beneficial effects of the utility model are: the two ends pressing down connecting rod respectively with press down rod member and press down that rotating shaft is mutually universal to be connected; can ensure that pressing down rod member swings smooth and easy; guarantee that commutation is also smooth and easy without time delay, enable Sewing machines forward make consistent with feeding amount when oppositely making so that forward is made time the sewing machine feed wheel that overlaps with pin hole when oppositely making of pin hole turn to switching mechanism.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the structural representation in upper driving portion when upperpush rod part does not press down in the utility model;
Accompanying drawing 3 is the structural representation in upper driving portion when upperpush rod part presses down in the utility model;
In accompanying drawing: 1, drawing-inroller; 2, upper driving portion; 3, underdrive portion; 21, upper rotating shaft; 22, bearing is rotated forward; 23, bearing is reversed; 25, upper fixed block; 26, lower fixed block; 27, rod member is pressed down; 28, rotating shaft is pressed down; 29, connecting rod is pressed down; 31, scalable connecting rod; 32, lower rotary shaft.
Detailed description of the invention
Below in conjunction with embodiment shown in the drawings, the utility model is described in detail below:
As shown in Figure 1, a kind of sewing machine feed wheel turns to switching mechanism, it comprise drawing-inroller 1, for drive described drawing-inroller 1 to rotate upper driving portion 2, be connected to underdrive portion 3 between described upper driving portion 2 and drawing-inroller 1.
As Fig. 2, shown in 3, described upper driving portion 2 comprises rotating shaft 21, to be sheathed in described upper rotating shaft 21 and the upper fixed block 25 be fixed in the frame of Sewing machines and lower fixed block 26, being sheathed on being respectively used in described upper rotating shaft 21 drives described upper rotating shaft 21 rotate forward with the rotating forward bearing 22 of backwards rotation and reverse bearing 23, with fixed piece of 25 phase hinges and for need in upper rotating shaft 21 to press when commutating described on rotating shaft 21 press down rod member 27, hinge presses down rotating shaft 28 for what press down that rod member 27 presses down described in driving on sewing machine frame, upper fixed block 25 is connected with upper rotating shaft by bearing with lower fixed block 26, described press down rod member 27 and described press down to be connected with between rotating shaft 28 press down connecting rod 29, the described two ends pressing down connecting rod 29 press down rod member 27 with described respectively and press down that rotating shaft 28 is mutually universal to be connected.In the present embodiment, the two ends pressing down connecting rod 29 described in respectively with described press down rod member 27 and press down rotating shaft 28 be connected by spherical universal connector.Described underdrive portion 3 comprises scalable connecting rod 31, to be in transmission connection mutually by helical gear with described drawing-inroller 1 and the perpendicular lower rotary shaft 32 of the pivot center of pivot center and described drawing-inroller 1, and the two ends of described scalable connecting rod 31 are connected by cross universal connector with upper rotating shaft 21 with described lower rotary shaft 32.
The operation principle of said mechanism is as follows: when pressing down rotating shaft 28 to lower swing, by pulling press down rod member 27 to lower swing with its universal connecting rod 29 that presses down be connected, thus drive described upper rotating shaft 21 descending, be in transmission connection mutually with reverse bearing 23, thus drive underdrive portion 3 comprise backwards rotation and then drive drawing-inroller backwards rotation.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalence changes of doing according to the utility model spirit or modify, as described in connecting rod two ends respectively with as described in press down rod member and press down rotating shaft by changes such as cross universal connector are connected, all should be encompassed within protection domain of the present utility model.
Claims (4)
1. a sewing machine feed wheel turns to switching mechanism, it comprises drawing-inroller (1), the upper driving portion (2) rotated for driving described drawing-inroller (1), be connected to the underdrive portion (3) between described upper driving portion (2) and drawing-inroller (1), described upper driving portion (2) comprises rotating shaft (21), be sheathed on described upper rotating shaft (21) to go up and the upper fixed block (25) be fixed in the frame of Sewing machines and lower fixed block (26), being sheathed on being respectively used on described upper rotating shaft (21) drives described upper rotating shaft (21) rotate forward with the rotating forward bearing (22) of backwards rotation and reverse bearing (23), rod member (27) is pressed down with fixed piece of (25) phase hinge and for what need to press when commutating described upper rotating shaft (21) in upper rotating shaft (21), hinge presses down rotating shaft (28) for what press down that rod member (27) presses down described in driving on sewing machine frame, it is characterized in that: described in press down rod member (27) and described press down to be connected with between rotating shaft (28) press down connecting rod (29), the described two ends pressing down connecting rod (29) press down rod member (27) with described respectively and press down that rotating shaft (28) is mutually universal to be connected.
2. sewing machine feed wheel according to claim 1 turns to switching mechanism, it is characterized in that: the two ends of described connecting rod (29) are pressed down rod member (27) with described and press down rotating shaft (28) respectively and are connected by cross universal connector.
3. sewing machine feed wheel according to claim 1 turns to switching mechanism, it is characterized in that: the two ends of described connecting rod (29) are pressed down rod member (27) with described and press down rotating shaft (28) respectively and are connected by spherical universal connector.
4. sewing machine feed wheel according to claim 1 turns to switching mechanism, it is characterized in that: described underdrive portion (3) comprises scalable connecting rod (31), to be in transmission connection mutually by helical gear with described drawing-inroller (1) and the perpendicular lower rotary shaft (32) of the pivot center of pivot center and described drawing-inroller (1), the two ends of described scalable connecting rod (31) are connected by cross universal connector with upper rotating shaft (21) with described lower rotary shaft (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843940.7U CN205062390U (en) | 2015-10-28 | 2015-10-28 | Sewing machine drawing -inroller turns to switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843940.7U CN205062390U (en) | 2015-10-28 | 2015-10-28 | Sewing machine drawing -inroller turns to switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205062390U true CN205062390U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520843940.7U Active CN205062390U (en) | 2015-10-28 | 2015-10-28 | Sewing machine drawing -inroller turns to switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205062390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268188A (en) * | 2017-06-23 | 2017-10-20 | 杰克缝纫机股份有限公司 | One kind volume open-wire line automatic sewing machine |
-
2015
- 2015-10-28 CN CN201520843940.7U patent/CN205062390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268188A (en) * | 2017-06-23 | 2017-10-20 | 杰克缝纫机股份有限公司 | One kind volume open-wire line automatic sewing machine |
| CN107268188B (en) * | 2017-06-23 | 2019-08-16 | 杰克缝纫机股份有限公司 | One kind volume open-wire line automatic sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |