CN215593369U

CN215593369U - Adjusting structure and sewing machine with same

Info

Publication number: CN215593369U
Application number: CN202121474224.8U
Authority: CN
Inventors: 马光涛; 胡彬; 鲍增金; 陈海发; 陈栩华
Original assignee: Zhongjie Sewing Machine Co Ltd
Current assignee: Zhongjie Sewing Machine Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-01-21
Anticipated expiration: 2031-06-30

Abstract

The utility model provides an adjusting structure and a sewing machine with the same. The regulation structure is used for driving the rising or decline of sewing machine's well presser foot, and the regulation structure includes: the driving motor is arranged on a frame of the sewing machine; the pull rod component is rotatably arranged on an output shaft of the driving motor; the connecting assembly is connected with one end of the pull rod component, which is far away from the output shaft; the connecting component is provided with a connecting component used for being connected with the middle presser foot, and the connecting component is adjustably arranged in position so as to drive the connecting component to move by driving the output shaft to rotate by a preset angle, so that the middle presser foot is lifted or lowered to a preset position. The adjusting structure solves the problem that the position of the centering presser foot of the sewing machine in the prior art is difficult to control.

Description

Adjusting structure and sewing machine with same

Technical Field

The utility model relates to the field of sewing machines, in particular to an adjusting structure and a sewing machine with the adjusting structure.

Background

During the operation of the sewing machine, a middle presser foot of the sewing machine is a component which moves along with the movement of a needle, the middle presser foot is used for assisting a cloth-needling mechanism to form a sewing thread loop, and the middle presser foot ascends along with the rising of the needle to leave a sewing material so as to facilitate the feeding of the sewing machine. When the machine needle pierces cloth, the middle presser foot descends to tightly lean against the sewing material to fix the sewing material so as to form a thread loop and hook thread and avoid needle skipping.

However, in the existing sewing machine, an air cylinder or a hydraulic cylinder is generally adopted to drive the middle presser foot to move so as to adjust the height of the middle presser foot, and the driving mode is difficult to accurately control the position of the middle presser foot.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an adjusting structure and a sewing machine with the adjusting structure, and aims to solve the problem that the position of a centering presser foot of the sewing machine in the prior art is difficult to control.

In order to achieve the above object, according to one aspect of the present invention, there is provided an adjusting structure for lifting or lowering a middle presser foot of a sewing machine, the adjusting structure comprising: the driving motor is arranged on a frame of the sewing machine; the pull rod component is rotatably arranged on an output shaft of the driving motor; the connecting assembly is connected with one end of the pull rod component, which is far away from the output shaft; the connecting component is provided with a connecting component used for being connected with the middle presser foot, and the connecting component is adjustably arranged in position so as to drive the connecting component to move by driving the output shaft to rotate by a preset angle, so that the middle presser foot is lifted or lowered to a preset position.

Further, the coupling assembling includes a connecting rod, one end of which is rotatably connected with the pull rod part, and the other end of which is connected with the connecting part.

Furthermore, one end of the connecting part is rotatably arranged on the frame of the sewing machine, and the other end of the connecting part is rotatably connected with the connecting rod; one end of the connecting component close to the connecting rod is provided with a connecting part used for being connected with the middle presser foot.

Further, the connecting part comprises a first connecting body connected with the frame of the sewing machine and a second connecting body connected with the connecting rod; a connecting section is arranged between the first connecting body and the second connecting body, so that the first connecting body and the second connecting body are arranged at intervals along the extending direction of the connecting section.

Furthermore, a connecting shaft is arranged on the first connecting body, and the connecting part is rotatably connected with a frame of the sewing machine through the connecting shaft; and/or a connecting hole is formed in the second connecting body, and the connecting part is hinged to the connecting rod through the connecting hole.

Further, the connecting part is arranged on one side of the connecting part, which is far away from the connecting rod; and/or the connecting part extends towards the connecting part and away from the connecting rod.

Further, the extending direction of the connecting part is parallel to the rotating axis of the connecting part; and/or the connecting part is of a plate-shaped structure.

Further, the connecting portion includes a connecting surface for abutting against a lifting member of the sewing machine.

According to another aspect of the utility model, a sewing machine is provided, which comprises a middle presser foot and an adjusting structure for driving the middle presser foot to move, wherein the adjusting structure is the adjusting structure.

Further, the sewing machine includes a lifting assembly, the lifting assembly including: the lifting component is adjustably arranged, and is connected with the connecting component; the rotating component is rotatably arranged on the lifting component; the middle pressure foot is arranged at one end of the pressure rod, which is far away from the lifting component; the pressure lever is connected with the rotating part so as to drive the pressure lever to lift or descend by driving the rotating part to rotate.

By applying the technical scheme of the utility model, the adjusting structure is used for driving the middle presser foot of the sewing machine to lift or descend, and comprises the following components: the driving motor is arranged on a frame of the sewing machine; the pull rod component is rotatably arranged on an output shaft of the driving motor; the connecting assembly is connected with one end of the pull rod component, which is far away from the output shaft; the connecting component is provided with a connecting component used for being connected with the middle presser foot, and the connecting component is adjustably arranged in position so as to drive the connecting component to move by driving the output shaft to rotate by a preset angle, so that the middle presser foot is lifted or lowered to a preset position. By adopting the arrangement, the pull rod component is rotatably arranged on the output shaft of the driving motor, one end of the pull rod component is connected to the output shaft of the driving motor, and when the output shaft rotates, the pull rod component can be driven to move, so that the other end of the pull rod component moves up and down, and one end of the pull rod component, which is far away from the output shaft, is connected with the connecting component, thereby driving the middle presser foot arranged on the connecting component to move. Therefore, the output shaft rotates for a circle, the middle presser foot can be driven to move up and down for a cycle, the corresponding upper and lower positions of the middle presser foot can be found by controlling the rotation angle of the output shaft, and therefore the upper and lower positions of the middle presser foot can be conveniently controlled. The problem of sewing machine centering presser foot position control among the prior art difficult is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 illustrates a perspective view structural schematic of an embodiment of an adjustment structure, a lift assembly, and a middle presser foot according to the present invention;

FIG. 2 is a schematic structural view showing another perspective of the adjustment structure, lift assembly and center presser foot of the present invention; and

fig. 3 shows a schematic structural view of the adjustment structure of the present invention.

Wherein the figures include the following reference numerals:

1. a drive motor; 11. an output shaft; 2. a pull rod member; 3. a connecting assembly; 31. a connecting member; 311. a first connecting body; 3111. a connecting shaft; 312. a second connector; 313. a connecting section; 314. a connecting portion; 3141. a connecting surface; 32. a connecting rod; 4. a lifting assembly; 41. a lifting member; 42. a rotating member; 43. a pressure lever; 10. and a middle presser foot.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The adjusting structure of this embodiment, see fig. 1 to 3, is used for driving the middle presser foot 10 of the sewing machine to lift or descend, and the adjusting structure includes: the driving motor 1, the driving motor 1 is set up on the stander of the Sewing machines; the pull rod component 2 is rotatably arranged on an output shaft 11 of the driving motor 1; the connecting assembly 3 is connected with one end, far away from the output shaft 11, of the pull rod component 2; wherein, the connecting component 3 is provided with a connecting component 31 used for connecting with the middle presser foot 10, and the connecting component 31 is adjustably arranged, so that the connecting component 31 is driven to move by rotating the driving output shaft 11 by a preset angle, thereby the middle presser foot 10 is lifted or descended to a preset position. With the above arrangement, the pull rod member 2 is rotatably disposed on the output shaft 11 of the driving motor 1, one end of the pull rod member 2 is connected to the output shaft 11 of the driving motor 1, and when the output shaft 11 rotates, the pull rod member 2 can be driven to move, so that the other end of the pull rod member 2 moves up and down, and one end of the pull rod member 2, which is far away from the output shaft 11, is connected to the connecting member 31, thereby driving the middle presser foot 10 mounted on the connecting member 31 to move. Therefore, the output shaft 11 rotates for a circle to drive the middle presser foot 10 to move up and down for a cycle, and the corresponding up and down position of the middle presser foot 10 can be found by controlling the rotation angle of the output shaft 11, so that the up and down position of the middle presser foot 10 can be conveniently controlled. The problem of sewing machine centering presser foot 10's position control among the prior art difficulty is solved.

Referring to fig. 1 to 3, in the adjustment structure of the present embodiment, the connection assembly 3 includes a connection rod 32, one end of the connection rod 32 is rotatably connected to the lever member 2, and the other end of the connection rod 32 is connected to the connection member 31. The pull rod member 2 and the connecting member 31 are connected by the connecting rod 32, so that the position of the connecting member 31 can be adjusted.

In the adjusting structure of the present embodiment, referring to fig. 1 to 3, one end of the connecting member 31 is rotatably provided on the frame of the sewing machine, and the other end of the connecting member 31 is rotatably connected with the connecting rod 32; one end of the connecting member 31 near the connecting rod 32 is provided with a connecting portion 314 for connecting with the middle presser foot. Specifically, one end of the connecting member 31 is rotatably connected, and the other end of the connecting member 31 is used for connecting with the middle presser foot 10. Thus, the swing of the connecting member 31 can lift or lower the middle presser foot 10.

Referring to fig. 1 to 3, in the adjusting structure of the present embodiment, the connecting member 31 includes a first connecting body 311 for connecting with a frame of the sewing machine and a second connecting body 312 for connecting with the connecting rod 32; a connection section 313 is disposed between the first connection body 311 and the second connection body 312, so that the first connection body 311 and the second connection body 312 are disposed at intervals along an extending direction of the connection section 313. Thus, the connecting position of the connecting member 31 and the connecting rod 32 and the middle presser foot 10 can be adjusted by providing the connecting section 313. Also, providing the connection section 313 can increase the strength of the connection member 31.

In the adjusting structure of the present embodiment, referring to fig. 1 to 3, a connecting shaft 3111 is provided on the first connecting body 311, and the connecting member 31 is rotatably connected with the frame of the sewing machine through the connecting shaft 3111; and or, the second connection body 312 is provided with a connection hole through which the connection member 31 is hinged to the connection rod 32.

In the adjusting structure of the present embodiment, the first connecting body 311 is provided with a connecting shaft 3111, and the connecting member 31 is rotatably connected with the frame of the sewing machine through the connecting shaft 3111; the link member 31 is rotatably mounted on a frame of the sewing machine through a link shaft 3111. The second connection body 312 is provided with a connection hole through which the connection member 31 is hinged to the connection rod 32. The device has simple structure and reduces the production cost.

Referring to fig. 1 to 3, in the adjustment structure of the present embodiment, the connection portion 314 is provided on a side of the connection member 31 away from the connection rod 32; and/or, the connecting portion 314 extends toward the connecting member 31 away from the connecting rod 32. In this way, the connection of the connecting portion 314 to the middle presser foot 10 is facilitated.

In the adjustment structure of the present embodiment, referring to fig. 1 to 3, the extending direction of the connecting portion 314 is parallel to the rotational axis of the connecting member 31; and/or, the connecting portion 314 is a plate-like structure. By adopting the arrangement, the structure is simple, and the production cost is reduced.

Referring to fig. 1 to 3, in the adjusting structure of the present embodiment, the connecting portion 314 includes a connecting surface 3141, and the connecting surface 3141 is configured to abut against a lifting member 41 of the sewing machine. By adopting the arrangement, the structure is simple, and the production cost is reduced.

The sewing machine of this embodiment, including well presser foot and the regulation structure that is used for driving well presser foot motion, the regulation structure is foretell regulation structure.

In the sewing machine of this embodiment, the sewing machine includes a lifting assembly 4, and the lifting assembly includes: the lifting member 41 is arranged to be position adjustable, the lifting member 41 being connected to the connecting member 31; the rotating member 42 is rotatably mounted on the lifting member 41; the middle presser foot 10 is arranged at one end of the pressing rod 43 far away from the lifting component 41; the pressing rod 43 is connected with the rotating part 42, so that the pressing rod 43 is driven to lift or lower by driving the rotating part 42 to rotate.

The working principle of the sewing machine of the embodiment is as follows:

when the main shaft rotates in the direction of the arrow in fig. 1, the eccentric wheel is driven to rotate together, the rotating motion of the main shaft is converted into the left-right swing of the lower end of the swing crank through the eccentric wheel connecting rod, the left-right swing of the upper end of the L-shaped crank (the rotating component 42) is converted through the swing connecting rod, the left end of the L-shaped crank swings up and down, and the up-and-down motion of the left end of the L-shaped crank is transmitted to the middle presser foot 10 through the connecting rod, so that the middle presser foot 10 moves up and down.

The compression spring makes the right end of the lifting component 41 generate a downward movement trend, the right end of the connecting component 31 is provided with a boss (connecting part 314) in the horizontal direction, when the driving motor 1 drives one end of the connecting component 31 to move upwards, the connecting component 31 generates a rotation trend, when the moment of the driving motor 1 is large enough, the connecting component 31 overcomes the downward pressure of the compression spring and then drives the other end of the connecting component 31 to move upwards, and then the middle presser foot 10 is lifted through the pressure lever.

In summary, the rotation of the main shaft can make the middle presser foot 10 vibrate in the vertical direction, and the rotation of the driving motor 1 can make the middle presser foot 10 lift or lower, and can also make the middle presser foot 10 vibrate at different height positions.

The main shaft drives the middle presser foot 10 to follow the machine needle, so that the middle presser foot 10 can generate larger downward pressure when being close to the sewing material, and the sewing stitch is more beautiful and stable. The follow-up height of the middle presser foot controlled by the driving motor 1 can be dynamically adjusted according to the thickness change condition of the sewing material in the sewing process.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the adjusting structure of the utility model is used for driving the middle presser foot 10 of the sewing machine to lift or descend, and comprises: the driving motor 1, the driving motor 1 is set up on the stander of the Sewing machines; the pull rod component 2 is rotatably arranged on an output shaft 11 of the driving motor 1; the connecting assembly 3 is connected with one end, far away from the output shaft 11, of the pull rod component 2; wherein, the connecting component 3 is provided with a connecting component 31 used for connecting with the middle presser foot 10, and the connecting component 31 is adjustably arranged, so that the connecting component 31 is driven to move by rotating the driving output shaft 11 by a preset angle, thereby the middle presser foot 10 is lifted or descended to a preset position. With the above arrangement, the pull rod member 2 is rotatably disposed on the output shaft 11 of the driving motor 1, one end of the pull rod member 2 is connected to the output shaft 11 of the driving motor 1, and when the output shaft 11 rotates, the pull rod member 2 can be driven to move, so that the other end of the pull rod member 2 moves up and down, and one end of the pull rod member 2, which is far away from the output shaft 11, is connected to the connecting member 31, thereby driving the middle presser foot 10 mounted on the connecting member 31 to move. Therefore, the output shaft 11 rotates for a circle to drive the middle presser foot 10 to move up and down for a cycle, and the corresponding up and down position of the middle presser foot 10 can be found by controlling the rotation angle of the output shaft 11, so that the up and down position of the middle presser foot 10 can be conveniently controlled. The problem of sewing machine centering presser foot 10's position control among the prior art difficulty is solved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjusting structure for driving a middle presser foot (10) of a sewing machine to be raised or lowered, the adjusting structure comprising:

the driving motor (1), the said driving motor (1) is set up on the stander of the said Sewing machines;

the pull rod component (2), the pull rod component (2) is rotatably arranged on an output shaft (11) of the driving motor (1);

the connecting assembly (3) is connected with one end, far away from the output shaft (11), of the pull rod component (2);

the connecting component (3) is provided with a connecting component (31) connected with the middle presser foot (10), and the connecting component (31) is adjustably arranged in position so as to drive the connecting component (31) to move by driving the output shaft (11) to rotate by a preset angle, so that the middle presser foot (10) is lifted or lowered to a preset position.

2. The adjustment arrangement according to claim 1, characterized in that the connection assembly (3) comprises a connection rod (32), one end of the connection rod (32) being rotatably connected with the pull rod part (2) and the other end of the connection rod (32) being connected with the connection part (31).

3. The adjusting mechanism according to claim 2, wherein one end of the connecting member (31) is rotatably provided on a frame of the sewing machine, and the other end of the connecting member (31) is rotatably connected to the connecting rod (32); one end of the connecting component (31) close to the connecting rod (32) is provided with a connecting part (314) used for being connected with the middle presser foot (10).

4. The adjustment structure according to claim 3, characterized in that said connection member (31) comprises a first connection body (311) for connection with a frame of said sewing machine and a second connection body (312) for connection with said connection rod (32); a connecting section (313) is arranged between the first connecting body (311) and the second connecting body (312), so that the first connecting body (311) and the second connecting body (312) are arranged at intervals along the extending direction of the connecting section (313).

5. The adjustment structure according to claim 4, characterized in that a connection shaft (3111) is provided on the first connection body (311), the connection member (31) being rotatably connected with a frame of the sewing machine through the connection shaft (3111); and/or a connecting hole is arranged on the second connecting body (312), and the connecting part (31) is hinged with the connecting rod (32) through the connecting hole.

6. Adjustment arrangement according to claim 3, characterized in that the connection (314) is arranged on the side of the connection part (31) remote from the connection rod (32); and/or the connecting part (314) extends towards the connecting part (31) away from the connecting rod (32).

7. Adjustment structure as claimed in claim 3, characterized in that the direction of extension of the connecting portion (314) is parallel to the axis of rotation of the connecting member (31); and/or the connecting part (314) is of a plate-shaped structure.

8. Adjustment structure as claimed in claim 3, characterized in that said connection portion (314) comprises a connection surface (3141), said connection surface (3141) being intended to abut against a lifting member (41) of said sewing machine.

9. A sewing machine comprising a middle presser foot and an adjustment structure for moving the middle presser foot, wherein the adjustment structure is as claimed in any one of claims 1 to 8.

10. Sewing machine as in claim 9, characterized in that it comprises a lifting assembly (4) comprising:

a lifting element (41), the lifting element (41) being positionally adjustably arranged, the lifting element (41) being connected to the connecting element (31);

a rotating member (42), the rotating member (42) being rotatably mounted on the lifting member (41);

the middle presser foot (10) is arranged at one end of the pressing rod (43) far away from the lifting component (41); the pressing rod (43) is connected with the rotating part (42) so as to drive the pressing rod (43) to lift or descend by driving the rotating part (42) to rotate.