CN207047493U - A kind of pneumatic foot lifting mechanism of sewing machine - Google Patents
A kind of pneumatic foot lifting mechanism of sewing machine Download PDFInfo
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- CN207047493U CN207047493U CN201721007558.8U CN201721007558U CN207047493U CN 207047493 U CN207047493 U CN 207047493U CN 201721007558 U CN201721007558 U CN 201721007558U CN 207047493 U CN207047493 U CN 207047493U
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Abstract
The utility model provides a kind of pneumatic foot lifting mechanism of sewing machine, belongs to sewing machine technique field.The transmission component that it is solved in existing pneumatic foot lifting mechanism is complicated, influences the efficiency of assembling of foot lifting mechanism, and the space-consuming on sewing machine is big the problem of.The pneumatic foot lifting mechanism of this sewing machine, including cylinder, rotating shaft, riser and depression bar, transmission component is provided between the cylinder and rotating shaft, transmission mechanism is provided between the riser and depression bar, the transmission component includes being connected in the crank for acting in rotating shaft and with cylinder and rotating, the crank is located at close to one end of riser in rotating shaft, and the crank is on one end of riser integrally formed with the driving relative to crank evagination.Pneumatic foot lifting mechanism of the present utility model facilitates the assembling of transmission component, and the length of rotating shaft can also shorten accordingly, reduce the space-consuming again on sewing machine, reduce cost by the structure of simplified transmission component.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of sewing machine, the pneumatic lift pressure of particularly a kind of sewing machine
Pin mechanism.
Background technology
Sewing machine is with one or more sewing thread, and one or more stitchings are formed on sewing, make one or more layers seam
The machine that material interweaves or united by a seam, and foot lifting mechanism is the important component of sewing machine, foot lifting mechanism is used to stitch
Cloth is pushed down in the process such as system or cutting cloth, prevents cloth to be subjected to displacement, so as to ensure the sewing effect of cloth.
At present, Chinese patent net discloses a kind of foot lifting mechanism (Authorization Notice No. of sewing machine：CN203668641U),
It includes rotating shaft, presser bar, transmission levers and the cylinder being fixed on sewing machine case, and the transmission levers dumpling is connected on sewing machine
Casing on, the rotating shaft be connected on casing and rotating shaft can around its axis rotation, the rotating shaft and cylinder, piston rod mutually hang down
Directly, the depression bar lift cam that transmission levers can be driven to rotate when the spindle is rotated, the rotating shaft and gas are fixed with the rotating shaft
Being provided between cylinder enables cylinder to drive the transmission component of axis of rotation, and transmission levers are provided between the transmission levers and presser bar
The drive mechanism that presser bar can be driven to be lifted up during rotation, the transmission component include push rod contiguous block, connecting rod and swing rod, institute
Push rod contiguous block is stated to be connected on the piston rod of cylinder, one end and the push rod contiguous block phase dumpling of the connecting rod connect, connecting rod it is another
One end phase dumpling with swing rod is held to connect, the other end and the rotating shaft of the swing rod are fixedly connected with.The complicated influence of above-mentioned transmission component
The efficiency of assembling of foot lifting mechanism, and because swing rod and depression bar lift cam are provided separately in rotating shaft, on sewing machine
Space-consuming is big so that the space-consuming of transmission component and rotating shaft on sewing machine in foot lifting mechanism is big.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of pneumatic lift of sewing machine
Presser foot device, the technical problem that the utility model solves are：How to simplify the structure of the transmission component in foot lifting mechanism makes it
Space-consuming convenient for assembly and that reduction is on sewing machine.
The purpose of this utility model can be realized by following technical proposal：A kind of pneumatic foot lifting mechanism of sewing machine,
Including cylinder, rotating shaft, riser and depression bar, transmission component, the riser and depression bar are provided between the cylinder and rotating shaft
Between be provided with transmission mechanism, the transmission component includes being connected in the crank for acting in rotating shaft and with cylinder and rotating, the song
Handle is located at close to one end of riser in rotating shaft, and the crank is on one end of riser integrally formed with outside relative to crank
Convex drive division, the drive division is resisted against on riser and drive division can drive riser to rotate when crank rotates.
During presser foot lifter work of the present utility model, cylinder action causes the piston rod of cylinder to contract and drives crank to turn
Dynamic, crank is rotated after rotating by drive division drive riser, drives depression bar to carry upwards by transmission mechanism after riser rotation
Rise, realize that presser foot lifter acts.Drive division in this foot lifting mechanism is integrally formed with crank, and crank substitutes pendulum of the prior art
Bar and depression bar, structure is more compact compared with prior art, simplifies the structure of transmission component, facilitates the dress of transmission component
Match somebody with somebody, and the length of rotating shaft can also shorten accordingly, reduce the space-consuming again on sewing machine, reduce cost.
In a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, the outer end of the drive division is towards the side of riser
It is upper that there is projection, there is protuberance on the riser, the projection is resisted against on the lower surface of protuberance.Due to projection against
On the lower surface of protuberance, therefore when the piston rod of cylinder shrinks, driven and lifted by projection when drive division is swung up
Plate is to lower swing.
In a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, the transmission component also includes cylinder connector and joint
Connecting rod, the cylinder connector are connected on the piston rod of cylinder, one end of the connector link and the outer end of cylinder connector be hinged,
The other end is hinged with crank.Crank is driven to rotate by cylinder connector and connector link when the piston rod of cylinder shrinks.It is above-mentioned
Structure may be arranged as being fixed with cylinder connector on the piston rod of cylinder, outer end and the crank of cylinder connector are hinged, or
The outer end of the piston rod of cylinder is directly hinged with crank.
Have in a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, on the lateral surface of the crank and crank one
The connecting portion of shaping, the other end of the connector link are hinged on connecting portion.By set connecting portion convenient on crank with
Connector link is hinged.
In a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, it is all provided with the front end face and rear end face of the cylinder
There is installing plate, the cylinder can be fixed on sewing machine case by installing plate.In cylinder seam is fixed on by two pieces of installing plates
After threading on machine casing, cylinder is fixed on sewing machine case, and it is stable to be advantageous to cylinder operation.
In a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, the transmission mechanism includes the pressure being connected on depression bar
Rod carrier, the pneumatic foot lifting mechanism also include pendulum presser bar, and the presser bar spring bracket drives pendulum presser bar by link assembly
It is lifted up.Riser drives presser bar spring bracket to move up to after lower swing by transmission mechanism, and presser bar spring bracket moves up band
Dynamic pressure bar is lifted up, and presser bar spring bracket is lifted up by link assembly band movable pendulum presser bar.
In a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, the transmission mechanism also includes raising rod and lifting
Lever, the L-shaped tabular of lift lever, one end of the raising rod and riser are be hinged, the other end and lift lever
One end is hinged, and the other end of the lift lever is resisted against on the lower surface of presser bar spring bracket.Riser to after lower swing by carrying
Rise pull bar and lift lever drives presser bar spring bracket to move up, presser bar spring bracket, which moves up, drives depression bar and pendulum presser bar to be lifted up.
In a kind of pneumatic foot lifting mechanism of above-mentioned sewing machine, the link assembly includes presser bar spring bracket connecting rod, pressure
Pin wobble crank and V-shaped presser feet connecting rod crank, the presser bar spring bracket connecting rod is vertically arranged, and the presser feet wobble crank is horizontal
To setting, one end of the presser bar spring bracket connecting rod is hinged on presser bar spring bracket, the other end is hinged on one end of presser feet connecting rod crank,
The middle part of the presser feet connecting rod crank and the upper end of pendulum presser bar are hinged on one end of presser feet wobble crank.Presser bar spring bracket moves up
When by presser bar spring bracket connecting rod and presser feet connecting rod crank drive presser feet wobble crank to be swung up, presser feet wobble crank is swung up
Band movable pendulum presser bar is lifted up.
Compared with prior art, pneumatic foot lifting mechanism of the present utility model has advantages below：Drive division and crank one
Body formed, crank substitutes swing rod and depression bar of the prior art, and structure is more compact compared with prior art, simplifies transmission
The structure of component, facilitate the assembling of transmission component, and the length of rotating shaft can also shorten accordingly, reduce again on sewing machine
Space-consuming, reduce cost.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of first angle of the present utility model.
Fig. 2 is the dimensional structure diagram of second angle of the present utility model.
Fig. 3 is the dimensional structure diagram of third angle of the present utility model.
In figure, 1, cylinder；2nd, rotating shaft；3rd, riser；31st, portion is gone out；4th, depression bar；5th, crank；51st, drive division；52nd, projection；
53rd, connecting portion；6th, cylinder connector；7th, connector link；8th, installing plate；9th, presser bar spring bracket；10th, presser bar is put；11st, raising rod；
12nd, lift lever；13rd, presser bar spring bracket connecting rod；14th, presser feet wobble crank；15th, presser feet connecting rod crank.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, Figure 2 and shown in Fig. 3, including cylinder 1, rotating shaft 2, riser 3 and depression bar 4, the front end face of cylinder 1
With installing plate 8 is equipped with rear end face, cylinder 1 is fixed on sewing machine case by installing plate 8, rotating shaft 2 and riser 3
It is rotatably arranged on sewing machine case, transmission component is provided between cylinder 1 and rotating shaft 2, is provided with and passes between riser 3 and depression bar 4
Motivation structure.
More specifically, transmission component includes crank 5, cylinder connector 6 and connector link 7, and crank 5 is connected in rotating shaft
On 2, cylinder connector 6 is connected on the piston rod of cylinder 1, and one end and the outer end of cylinder connector 6 of connector link 7 are hinged, crank 5
Lateral surface on there is connecting portion 53 integrally formed with crank 5, the other end of connector link 7 is hinged on connecting portion 53, bent
Handle 5 is located at close to one end of riser 3 in rotating shaft 2, and crank 5 is on one end of riser 3 integrally formed with relative to crank 5
The drive division 51 of evagination, the outer end of drive division 51 have protrusion towards having projection 52 on the side of riser 3 on riser 3
Portion 31, the projection 52 are resisted against on the lower surface of protuberance 31.
More specifically, transmission mechanism includes presser bar spring bracket 9, raising rod 11 and lift lever 12, presser bar spring bracket 9
It is connected on depression bar 4, lift lever 12 is hinged on sewing machine case, 12 L-shaped tabular of lift lever, and the one of raising rod 11
End is hinged with riser 3, one end of the other end and lift lever 11 is hinged, and the other end of lift lever 11 is resisted against presser bar spring bracket
On 9 lower surface, pneumatic foot lifting mechanism also includes pendulum presser bar 10, and link assembly includes presser bar spring bracket connecting rod 13, presser feet is put
Dynamic crank 14 and V-shaped presser feet connecting rod crank 15, presser bar spring bracket connecting rod 13 is vertically arranged, and presser feet wobble crank 14 is laterally set
Put and and be hinged on sewing machine case, one end of presser bar spring bracket connecting rod 13 is hinged on presser bar spring bracket 9, the other end is hinged on pressure
One end of pin connecting rod crank 15, the middle part of presser feet connecting rod crank 15 and the upper end of pendulum presser bar 10 are hinged on presser feet wobble crank
14 one end.
Operation principle of the present utility model is：The piston rod of cylinder 1 passes through cylinder connector 6 and the band of connector link 7 when shrinking
Dynamic crank 5 rotates, and the projection 52 that crank rotates after 5 on drive division 51 is swung up and drives riser 3 to lower swing, riser
3 are resisted against presser bar spring bracket 9 to the rotation for driving lift lever 11 after lower swing by raising rod 11, lift lever 11 after rotating
End presser bar spring bracket 9 is jacked up upwards, presser bar spring bracket 9 drives depression bar 4 to be lifted up after moving up, and when presser bar spring bracket 9 moves up
Presser feet wobble crank 14 is driven to be swung up by presser bar spring bracket connecting rod 13, presser feet connecting rod crank 15 so that pendulum presser bar 10
It is lifted up, therefore during the piston rod contraction of cylinder 1, depression bar 4 and pendulum presser bar 10 are lifted up simultaneously, realize that presser foot lifter moves
Make.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein cylinder 1, rotating shaft 2, riser 3, go out portion 31, depression bar 4, crank 5, drive division 51,
Projection 52, connecting portion 53, cylinder connector 6, connector link 7, installing plate 8, presser bar spring bracket 9, pendulum presser bar 10, raising rod 11,
The terms such as lift lever 12, presser bar spring bracket connecting rod 13, presser feet wobble crank 14, presser feet connecting rod crank 15, but be not precluded from using
The possibility of other terms.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；
They are construed to any additional limitation and all disagreed with the utility model spirit.
Claims (8)
1. a kind of pneumatic foot lifting mechanism of sewing machine, including cylinder (1), rotating shaft (2), riser (3) and depression bar (4), described
Transmission component is provided between cylinder (1) and rotating shaft (2), transmission mechanism is provided between the riser (3) and depression bar (4), it is special
Sign is that the transmission component includes being connected in the crank (5) for acting in rotating shaft (2) and with cylinder and rotating, the crank (5)
Close to one end of riser (3) in rotating shaft (2), the crank (5) is on one end of riser (3) integrally formed with phase
For the drive division (51) of crank (5) evagination, the drive division (51) is resisted against on riser (3) and when crank (5) rotates
Drive division (51) can drive riser (3) to rotate.
A kind of 2. pneumatic foot lifting mechanism of sewing machine according to claim 1, it is characterised in that the drive division (51)
Outer end towards there is projection (52) on the side of riser (3), there is protuberance (31) on the riser (3), it is described convex
Post (52) is resisted against on the lower surface of protuberance (31).
A kind of 3. pneumatic foot lifting mechanism of sewing machine according to claim 1 or 2, it is characterised in that the transmission group
Part also includes cylinder connector (6) and connector link (7), and the cylinder connector (6) is connected on the piston rod of cylinder (1), described
One end of connector link (7) is hinged with the outer end of cylinder connector (6), the other end and crank (5) are be hinged.
4. the pneumatic foot lifting mechanism of a kind of sewing machine according to claim 3, it is characterised in that the crank (5)
Have on lateral surface and be hinged on connecting portion with crank (5) integrally formed connecting portion (53), the other end of the connector link (7)
(53) on.
5. the pneumatic foot lifting mechanism of a kind of sewing machine according to claim 1, it is characterised in that the cylinder (1)
Installing plate (8) is equipped with front end face and rear end face, the cylinder (1) can be fixed on sewing machine case by installing plate (8).
A kind of 6. pneumatic foot lifting mechanism of sewing machine according to claim 1 or 2, it is characterised in that the driver
Structure includes the presser bar spring bracket (9) being connected on depression bar (4), and the pneumatic foot lifting mechanism also includes pendulum presser bar (10), described
Presser bar spring bracket (9) drives pendulum presser bar (10) to be lifted up by link assembly.
7. the pneumatic foot lifting mechanism of a kind of sewing machine according to claim 6, it is characterised in that the transmission mechanism is also
Including raising rod (11) and lift lever (12), the L-shaped tabular of the lift lever (12), the one of the raising rod (11)
End is hinged with riser (3), one end of the other end and lift lever (12) is hinged, the other end of the lift lever (12) against
On the lower surface of presser bar spring bracket (9).
A kind of 8. pneumatic foot lifting mechanism of sewing machine according to claim 6, it is characterised in that the link assembly bag
Include presser bar spring bracket connecting rod (13), presser feet wobble crank (14) and V-shaped presser feet connecting rod crank (15), the presser bar spring bracket connecting rod
(13) vertically arranged, the presser feet wobble crank (14) is laterally set, and one end of the presser bar spring bracket connecting rod (13) is hinged on pressure
On rod carrier (9), the other end be hinged on one end of presser feet connecting rod crank (15), the middle part of the presser feet connecting rod crank (15) and pendulum
The upper end of presser bar (10) is hinged on one end of presser feet wobble crank (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007558.8U CN207047493U (en) | 2017-08-11 | 2017-08-11 | A kind of pneumatic foot lifting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721007558.8U CN207047493U (en) | 2017-08-11 | 2017-08-11 | A kind of pneumatic foot lifting mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207047493U true CN207047493U (en) | 2018-02-27 |
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ID=61502698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721007558.8U Active CN207047493U (en) | 2017-08-11 | 2017-08-11 | A kind of pneumatic foot lifting mechanism of sewing machine |
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| Country | Link |
|---|---|
| CN (1) | CN207047493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778438A (en) * | 2019-03-19 | 2019-05-21 | 张婷 | A kind of presser foot device and its sewing machine of application |
-
2017
- 2017-08-11 CN CN201721007558.8U patent/CN207047493U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778438A (en) * | 2019-03-19 | 2019-05-21 | 张婷 | A kind of presser foot device and its sewing machine of application |
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