CN211689461U - Adjusting device for presser foot alternating quantity of sewing machine - Google Patents
Adjusting device for presser foot alternating quantity of sewing machine Download PDFInfo
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- CN211689461U CN211689461U CN201922501861.9U CN201922501861U CN211689461U CN 211689461 U CN211689461 U CN 211689461U CN 201922501861 U CN201922501861 U CN 201922501861U CN 211689461 U CN211689461 U CN 211689461U
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Abstract
The utility model belongs to the technical field of make up equipment, a adjusting device of sewing machine presser foot volume in turn is related to, its adjusting device who has solved current sewing machine presser foot volume in turn occupies the big scheduling problem of assembly space. This adjusting device includes the rotary drive source, the presser foot promotes the regulating spindle, presser foot promotes axle support crank and presser foot and promotes the axle, be provided with between rotary drive source and the presser foot promotes the regulating spindle and drive the rotatory drive mechanism of this presser foot promotion regulating spindle, presser foot promotes axle support crank and sets up on the presser foot promotes the regulating spindle, and this presser foot promotes axle support crank and can pass through the oscillating quantity of self removal adjustment presser foot promotion axle, presser foot promotes the axle and can form alternately through presser foot and external pressure foot up-and-down motion in the self reciprocal swing drive. Because presser foot lifting shaft support crank's among this application removal is realized through presser foot lifting adjusting shaft rotation, and it is less to occupy assembly space, can conveniently assemble, avoids the part in the sewing machine to take place to interfere.
Description
Technical Field
The utility model belongs to the technical field of make up equipment, a adjusting device of sewing machine presser foot volume in turn is related to.
Background
At present, most of common sewing machines with adjustable presser foot lifting amount in the market adopt a movable sliding block for adjustment, the sliding block is fixed by using a screw, the adjustment can be carried out only after the screw is loosened during the adjustment, the adjustment is inconvenient in actual use, the time is wasted, the adjustment height cannot be confirmed, and the actual use effect is not ideal; the presser foot lift amount is adjusted through the rotary scale plate, the adjustment mode is visual and convenient, but in the sewing process, the lifting height required by the sewing can not be directly achieved through functions such as keys, and the sewing effect is not ideal.
In order to solve the above problems, chinese patent CN 109706631 a discloses a presser foot alternation amount adjusting mechanism and method, including a driving motor, a connecting rod and a support shaft capable of driving a presser foot lifting shaft support to rotate, wherein two ends of the connecting rod are respectively provided with a first connecting hole and a second connecting hole, the first connecting hole is sleeved on the periphery of the support shaft, and the second connecting hole is fixedly connected with an output shaft of the driving motor. During the use, driving motor's output shaft rotates the in-process, and the support shaft can rotate round the output shaft under the drive of connecting rod, and then control presser foot lifting shaft support crank removes, consequently, control driving motor's swing angle can change the swing range of presser foot lifting shaft subassembly to the stroke of control presser foot alternating quantity realizes the adjustment of presser foot alternating quantity, accomplishes the bank of crossing of climbing of presser foot.
However, when the support crank of the lifting shaft with presser foot moves in the above patent, the support shaft swings, and a longer support shaft swings due to a smaller assembly space inside the sewing machine, which occupies a larger assembly space and is not beneficial to actual assembly.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, provided a sewing machine presser foot adjusting device of volume in turn, the utility model aims to solve the technical problem that: how to improve the assembly convenience through reducing the required assembly space of this adjusting device.
The purpose of the utility model can be realized by the following technical proposal:
the adjusting device is characterized by comprising a rotary driving source, a presser foot lifting adjusting shaft, a presser foot lifting shaft bracket crank and a presser foot lifting shaft, wherein a transmission mechanism capable of driving the presser foot lifting adjusting shaft to rotate is arranged between the rotary driving source and the presser foot lifting adjusting shaft, the presser foot lifting shaft bracket crank is arranged on the presser foot lifting adjusting shaft and can adjust the swinging amount of the presser foot lifting shaft through self movement, and the presser foot lifting shaft can drive an inner presser foot and an outer presser foot to move up and down through self reciprocating swinging to form alternation.
The working principle is as follows: in the working process, the output shaft of the rotary driving source rotates, the presser foot lifting adjusting shaft can be driven to rotate through the transmission mechanism, so that the presser foot lifting shaft support crank is driven to move, the effect of adjusting the swinging amount of the presser foot lifting shaft is finally achieved, and the adjustment of the alternating amount formed by the up-and-down movement of the inner presser foot and the outer presser foot is achieved. It should be noted that, as to how the presser foot lift shaft support crank adjusts the swing amount of the presser foot lift shaft assembly through its own movement, the structure mentioned in patent document CN 109706631 a or other structure in the prior art may be adopted, which will be described in the present application. What is different among this application and the prior art is, presser foot lifting shaft support cranked removal in this application is realized around the rotation of self through presser foot lifting adjusting shaft, and presser foot lifting adjusting shaft is rotatory around self, and it is less to occupy assembly space, can conveniently assemble, avoids the part in the sewing machine to take place to interfere.
In the above device for adjusting the presser foot alternation amount of the sewing machine, as an aspect, the transmission mechanism includes a first gear and a second gear that are engaged with each other, the first gear is fixed to the output shaft of the rotary drive source, and the second gear is fixed to the presser foot lifting adjustment shaft. The rotary driving source rotates to drive the first gear to rotate, then the second gear drives the presser foot lifting adjusting shaft to rotate, and finally the presser foot lifting shaft support crank is driven to move, so that the presser foot alternating quantity is adjusted.
In the above adjusting device for the presser foot alternating quantity of the sewing machine, the adjusting device further comprises a third gear meshed with the second gear, and the third gear is connected with a presser foot adjusting dial through a dial adjusting shaft. When the rotary driving source drives the presser foot lifting adjusting shaft to rotate to adjust the presser foot alternating quantity, the presser foot adjusting dial can synchronously rotate under the action of the third gear to display the height value of the presser foot alternating quantity.
In the above mentioned device for adjusting the presser foot alternation amount of the sewing machine, as another aspect, the transmission mechanism includes a belt assembly or a chain assembly disposed between the rotary drive source and the presser foot elevation adjustment shaft. The rotary driving source can also drive the presser foot lifting adjusting shaft to rotate in a belt transmission or chain transmission mode.
In the above device for adjusting the presser foot alternation amount of the sewing machine, the presser foot lifting adjusting shaft is further provided with a presser foot lifting shaft support, and one end of the presser foot lifting shaft support crank is fixed on the presser foot lifting shaft support through a presser foot lifting shaft support shaft.
In the above mentioned device for adjusting the presser foot alternation amount of the sewing machine, the rotary driving source includes a motor or a rotary electromagnet or a rotary cylinder.
In the above adjusting device for the presser foot alternation amount of the sewing machine, the adjusting device further comprises an upper shaft, a feeding crank cam, a feeding crank, a lifting shaft adjusting crank connecting rod and a lifting shaft adjusting crank, wherein the feeding crank cam is sleeved on the upper shaft, one end of the feeding crank is connected with the feeding crank cam, the other end of the feeding crank is connected with the other end of the presser foot lifting shaft support and one end of the lifting shaft adjusting crank connecting rod through a pin shaft, the other end of the lifting shaft adjusting crank connecting rod is connected with one end of the lifting shaft adjusting crank, and the other end of the lifting shaft adjusting crank is connected with the presser foot lifting adjusting shaft. The upper shaft rotates to drive the feeding crank to perform cam motion so as to drive the feeding crank to swing in a reciprocating manner, the presser foot lifting shaft support crank can limit the reciprocating swing range of the feeding crank, and therefore the presser foot lifting adjusting shaft can be driven by the rotary driving source to adjust the position of the presser foot lifting shaft support crank, so that the function of adjusting the reciprocating swing range of the feeding crank is achieved, when the feeding crank swings in a reciprocating manner, the presser foot lifting shaft can be adjusted by the lifting shaft to adjust the crank connecting rod to drive the lifting shaft to adjust the crank to swing, so that the presser foot lifting shaft is driven to swing in a reciprocating manner, and finally the inner presser foot and the outer; therefore, when the rotary driving source drives the presser foot lifting adjusting shaft to adjust the position of the presser foot lifting shaft support crank, the function of adjusting the presser foot alternating quantity can be achieved.
In the above device for adjusting the presser foot alternation amount of the sewing machine, the presser foot lifting shaft sleeve is provided with the left shaft sleeve and the right shaft sleeve. After the left shaft sleeve and the right shaft sleeve are designed, the axial leaping up of the presser foot lifting shaft sleeve can be avoided.
Compared with the prior art, the utility model has the advantages of it is following:
the presser foot lifting shaft support crank in the application moves through the presser foot lifting adjusting shaft to be realized around the rotation of the presser foot lifting adjusting shaft, the presser foot lifting adjusting shaft rotates around the presser foot lifting adjusting shaft, the occupied assembly space is small, the assembly can be facilitated, and the interference of components in the sewing machine is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the adjusting device.
Fig. 2 is a partially enlarged view of fig. 1.
In the figure, 1, a rotation drive source; 2. the presser foot lifts the regulating shaft; 3. a presser foot lifting shaft support crank; 4. a presser foot lift shaft; 5. a transmission mechanism; 6. a first gear; 7. a second gear; 8. a third gear; 9. a dial adjustment shaft; 10. a presser foot adjusting dial; 11. a presser foot lifting shaft support; 12. a presser foot lifting shaft support shaft; 13. a feed crank cam; 14. a feeding crank; 15. the lifting shaft adjusts the crank connecting rod; 16. a lifting shaft adjusting crank; 17. a pin shaft; 18. a left shaft sleeve; 19. a right shaft sleeve; 20. an inner presser foot; 21. an outer presser foot.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the adjusting device includes a rotary driving source 1, a presser foot lifting adjusting shaft 2, and a presser foot lifting shaft support crank 3, wherein the rotary driving source 1 can be a motor, a rotary electromagnet or a rotary cylinder, and is preferably a stepping motor in this embodiment. A transmission mechanism 5 capable of driving the presser foot lifting adjusting shaft 2 to rotate is arranged between the rotary driving source 1 and the presser foot lifting adjusting shaft 2, and a presser foot lifting shaft support crank 3 is arranged on the presser foot lifting adjusting shaft 2.
Preferably, the presser foot lifting adjustment shaft 2 is further provided with a presser foot lifting shaft support 11, and one end of the presser foot lifting shaft support crank 3 is fixed to the presser foot lifting shaft support 11 through a presser foot lifting shaft support shaft 12. Of course, if the presser foot lifting shaft support 11 is omitted, the presser foot lifting shaft support crank 3 may be directly fixed to the presser foot lifting adjustment shaft 2.
Regarding the transmission mechanism 5, in this embodiment, the transmission mechanism 5 includes a first gear 6 and a second gear 7 engaged with each other, the first gear 6 is fixed on the output shaft of the rotation driving source 1, and the second gear 7 is fixed on the presser foot lift adjustment shaft 2. In order to conveniently observe the alternating quantity of the inner presser foot and the outer presser foot, the adjusting device preferably further comprises a gear three 8 meshed with the gear two 7, and the gear three 8 is connected with a presser foot adjusting dial 10 through a dial adjusting shaft 9.
Of course, as other schemes, the transmission mechanism 5 may also include a transmission belt assembly or a transmission chain assembly disposed between the rotation driving source 1 and the presser foot lifting adjusting shaft 2, or other transmission modes capable of driving the presser foot lifting adjusting shaft 2 to rotate, and even the rotation driving source 1 may be directly connected to the rotation driving source without considering the assembly space, which is only difficult to implement.
As shown in fig. 1 and 2, the adjusting device further includes a presser foot lifting shaft 4, preferably, the presser foot lifting shaft 4 is sleeved with a left shaft sleeve 18 and a right shaft sleeve 19, the presser foot lifting shaft support crank 3 can adjust the swing amount of the presser foot lifting shaft 4 by its own movement, and the presser foot lifting shaft 4 can drive the inner presser foot 20 and the outer presser foot 21 to move up and down to form alternation by its own reciprocating swing.
Specifically, the adjusting device further comprises an upper shaft, a feeding crank cam 13, a feeding crank 14, a lifting shaft adjusting crank connecting rod 15 and a lifting shaft adjusting crank 16, wherein the feeding crank cam 13 is sleeved on the upper shaft, one end of the feeding crank 14 is connected with the feeding crank cam 13, the other end of the feeding crank 14 is connected with the other end of the presser foot lifting shaft support crank 3 and one end of the lifting shaft adjusting crank connecting rod 15 through a pin shaft 17, the other end of the lifting shaft adjusting crank connecting rod 15 is connected with one end of the lifting shaft adjusting crank 16, and the other end of the lifting shaft adjusting crank 16 is connected with the presser foot lifting adjusting shaft 2.
For the specific structure of the inner presser foot 20 and the outer presser foot 21, it is prior art, and those skilled in the art can implement the structure according to the drawings disclosed in the present application, or according to the disclosure disclosed in the patent CN 109706631 a mentioned in the background art, or according to the other structures disclosed in the prior art, and the detailed description thereof is omitted here.
The working principle of the utility model is as follows: in the working process, the upper shaft rotates to drive the feeding crank cam 13 to move, so as to drive the feeding crank 14 to swing in a reciprocating mode, when the feeding crank 14 swings in a reciprocating mode, the lifting shaft adjusting crank connecting rod 15 can drive the lifting shaft adjusting crank 16 to swing, so that the presser foot lifting shaft 4 is driven to swing in a reciprocating mode, and finally the inner presser foot and the outer presser foot are driven to move up and down to form an alternating amount. When the alternating quantity needs to be adjusted, the output shaft of the motor rotates, the presser foot lifting adjusting shaft 2 can be driven to rotate through the first gear 6 and the second gear 7, so that the presser foot lifting shaft support crank 3 is driven to move, the reciprocating swing range of the feeding crank 14 is adjusted, the reciprocating swing quantity of the presser foot lifting shaft 4 is adjusted, and finally the adjustment of the alternating quantity of the up-and-down movement of the inner presser foot and the outer presser foot is realized.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The adjusting device for the presser foot alternation amount of the sewing machine is characterized by comprising a rotary driving source (1), a presser foot lifting adjusting shaft (2), a presser foot lifting shaft support crank (3) and a presser foot lifting shaft (4), wherein a transmission mechanism (5) capable of driving the presser foot lifting adjusting shaft (2) to rotate is arranged between the rotary driving source (1) and the presser foot lifting adjusting shaft (2), the presser foot lifting shaft support crank (3) is arranged on the presser foot lifting adjusting shaft (2), the presser foot lifting shaft support crank (3) can adjust the oscillation amount of the presser foot lifting shaft (4) through self movement, and the presser foot lifting shaft (4) can drive an inner presser foot (20) and an outer presser foot (21) to move up and down through self reciprocating oscillation to form alternation.
2. The presser foot alternation amount adjusting device of a sewing machine according to claim 1, wherein the transmission mechanism (5) comprises a first gear (6) and a second gear (7) which are engaged, the first gear (6) is fixed on an output shaft of the rotary driving source (1), and the second gear (7) is fixed on the presser foot elevation adjusting shaft (2).
3. The device for adjusting the amount of alternation of presser feet of a sewing machine according to claim 2, characterized in that it further comprises a third gear (8) engaged with said second gear (7), said third gear (8) being connected to a presser foot adjustment dial (10) by a dial adjustment shaft (9).
4. The device for adjusting presser foot alternation amount of a sewing machine according to claim 1, wherein the transmission mechanism (5) comprises a belt assembly or a drive chain assembly disposed between the rotary drive source (1) and a presser foot elevation adjustment shaft (2).
5. The device for adjusting the amount of alternation of presser foot of sewing machine according to claim 1, 2, 3 or 4, characterized in that a presser foot lift shaft support (11) is further provided on the presser foot lift adjustment shaft (2), and one end of the presser foot lift shaft support crank (3) is fixed to the presser foot lift shaft support (11) through a presser foot lift shaft support shaft (12).
6. The device for adjusting the presser foot alternation amount of a sewing machine according to claim 1, 2, 3 or 4, wherein the rotary drive source (1) comprises a motor or a rotary electromagnet or a rotary cylinder.
7. The device for adjusting the amount of alternation of presser feet of sewing machine according to claim 1, 2, 3 or 4, characterized in that the adjusting device also comprises an upper shaft, a feeding crank cam (13), a feeding crank (14), a lifting shaft adjusting crank connecting rod (15) and a lifting shaft adjusting crank (16), the feeding crank cam (13) is sleeved on the upper shaft, one end of the feeding crank (14) is connected with the feeding crank cam (13), the other end of the feeding crank (14) is connected with the other end of the presser foot lifting shaft bracket crank (3) and one end of a lifting shaft adjusting crank connecting rod (15) through a pin shaft (17), the other end of the lifting shaft adjusting crank connecting rod (15) is connected with one end of the lifting shaft adjusting crank (16), the other end of the lifting shaft adjusting crank (16) is connected with the presser foot lifting adjusting shaft (2).
8. The device for adjusting the amount of alternation of presser feet of a sewing machine according to claim 1, 2, 3 or 4, characterized in that the presser foot lifting shaft (4) is sleeved with a left bushing (18) and a right bushing (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501861.9U CN211689461U (en) | 2019-12-31 | 2019-12-31 | Adjusting device for presser foot alternating quantity of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501861.9U CN211689461U (en) | 2019-12-31 | 2019-12-31 | Adjusting device for presser foot alternating quantity of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211689461U true CN211689461U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922501861.9U Active CN211689461U (en) | 2019-12-31 | 2019-12-31 | Adjusting device for presser foot alternating quantity of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211689461U (en) |
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2019
- 2019-12-31 CN CN201922501861.9U patent/CN211689461U/en active Active
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