CN215593368U

CN215593368U - Adjusting structure and sewing machine with same

Info

Publication number: CN215593368U
Application number: CN202120989257.XU
Authority: CN
Inventors: 易相瑞; 郭超恒; 严海军; 黄贤木; 鲍增金
Original assignee: Zhongjie Sewing Machine Co Ltd
Current assignee: Zhongjie Sewing Machine Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-01-21
Anticipated expiration: 2031-05-10

Abstract

The utility model provides an adjusting structure and a sewing machine with the same. The adjusting structure is used for adjusting the pressure on a part to be fixed on an operation part of the sewing machine, and comprises: the presser foot component comprises a presser wheel; the other end of the pushing component is provided with a pushing part used for being connected with the presser foot component; the pressing component is movably arranged on the machine shell; the pressing part is arranged at one end of the pushing part far away from the material pressing wheel, so that the pushing part is extruded by the pressing part, and the pushing part drives the material pressing wheel to press the part to be fixed; or the pushing component is loosened through the pressing component, so that the pushing part drives the pressing wheel to reduce the pressure of the pressing wheel on the component to be fixed. The utility model solves the problem that the sewing machine in the prior art is inconvenient to adjust the pressure of the presser foot.

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

At present, in the sewing process of a sewing machine, a presser foot needs to be arranged to press a sewing material so as to ensure the working stability of the sewing machine, and the presser foot needs to be lifted when the sewing machine feeds or discharges materials so as to be convenient to operate.

The traditional sewing machine presser foot pressure regulation is realized by providing pressure regulation through compression deformation of a compression spring arranged on a presser foot rod, the regulation method is inconvenient to control, and meanwhile, the regulation range of the pressure is generally smaller.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an adjusting structure and a sewing machine with the same, and aims to solve the problem that the sewing machine in the prior art is inconvenient to adjust the pressure of a presser foot.

In order to achieve the above object, according to one aspect of the present invention, there is provided an adjusting structure for adjusting a magnitude of a pressing force to which a member to be fixed on an operation portion of a sewing machine is subjected, the adjusting structure including: the presser foot component comprises a presser wheel; the other end of the pushing component is provided with a pushing part used for being connected with the presser foot component; the pressing component is movably arranged on the machine shell; the pressing part is arranged at one end of the pushing part far away from the material pressing wheel, so that the pushing part is extruded by the pressing part, and the pushing part drives the material pressing wheel to press the part to be fixed; or the pushing part is loosened through the pressing part, so that the pushing part drives the pressing wheel to reduce the pressure of the pressing wheel on the part to be fixed.

Further, the adjusting structure comprises a supporting piece, the supporting piece is installed on a machine shell of the sewing machine, at least part of the pushing part is sleeved on the supporting piece, and the pushing part is arranged at one end, far away from the supporting piece, of the pushing part.

Further, the pushing member includes a first connecting body and a second connecting body; one end of the first connecting body is connected with the supporting piece, and the other end of the first connecting body is connected with the second connecting body; one end of the second connector is connected with the first connector, and the other end of the second connector is provided with a pushing part.

Further, the first connecting body comprises an elastic part, the elastic part is of a plate-shaped structure, and the elastic part is provided with a contact surface used for being abutted with the pressing component.

Further, the pressing component is movably arranged along a first preset direction, the elastic part is of an arc-shaped plate-shaped structure, and a straight line of the first preset direction is parallel to a radial plane of the elastic part.

Further, the elastic part extends along a second predetermined direction, and the second predetermined direction is perpendicular to the first predetermined direction; wherein a minimum width of the elastic part in the second predetermined direction is greater than a maximum thickness of the elastic part in the radial direction.

Further, the second connecting body is of an arc-shaped plate-shaped structure and extends along a second preset direction; and/or the second connecting body is connected with one side of the first connecting body, which is close to the pressing component.

Furthermore, the adjusting structure further comprises a presser bar, the presser bar comprises a first connecting part and a second connecting part, the first connecting part is used for being connected with the pushing part, the second connecting part is used for being connected with the presser assembly, and the presser bar is movably arranged to drive the presser assembly to move.

Furthermore, the first connecting portion comprises a supporting groove, the pushing portion is clamped in the supporting groove, and the groove bottom of the supporting groove is used for being abutted against the pushing portion so that the pushing portion can push or release the first connecting portion.

Furthermore, adjust the structure and still include guide part, guide part includes the guide way, and the guide way sets up along the direction of motion of presser bar, is provided with on the presser bar to be used for with guide way matched with guide block.

According to another aspect of the present invention, there is provided a sewing machine including an adjustment structure as described above.

According to the technical scheme of the utility model, the adjusting structure is used for adjusting the pressure on a part to be fixed on an operating part of the sewing machine, and comprises: the presser foot component comprises a presser wheel; the other end of the pushing component is provided with a pushing part used for being connected with the presser foot component; the pressing component is movably arranged on the machine shell; the pressing part is arranged at one end of the pushing part far away from the material pressing wheel, so that the pushing part is extruded by the pressing part, and the pushing part drives the material pressing wheel to press the part to be fixed; or the pushing part is loosened through the pressing part, so that the pushing part drives the pressing wheel to reduce the pressure of the pressing wheel on the part to be fixed. Therefore, the pressure of the material pressing wheel on the presser foot component to the fixed component is adjustably set by utilizing an elastic lever component and through lever deformation transmission, and the adjustment is convenient and easy to control, and larger pressure adjustable quantity can be provided. The problem of sewing machine among the prior art to the regulation inconvenient of presser foot pressure 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 shows a schematic structural view of an embodiment of an adjustment structure according to the utility model;

FIG. 2 shows a close-up view of portion I of the adjustment mechanism of the present invention of FIG. 1;

fig. 3 shows a partial enlarged view of the section II of the adjusting mechanism of the present invention in fig. 2.

Wherein the figures include the following reference numerals:

1. a presser foot assembly; 11. a material pressing wheel; 2. a pushing member; 21. a first connecting body; 211. an elastic portion; 2111. a contact surface; 22. a second connector; 23. a pushing part; 3. a hold-down member; 4. a support member; 5. a presser bar; 51. a first connection portion; 511. a support groove; 52. a second connecting portion; 53. a guide block; 6. a guide member; 61. a guide groove; 10. an operation unit.

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 the present embodiment, referring to fig. 1 to 3, for adjusting the magnitude of the pressure to which a member to be fixed on an operating portion 10 of a sewing machine is subjected, includes: the presser foot component 1, the presser foot component 1 includes the pinch roller 11; a pushing component 2, one end of the pushing component 2 is arranged on the shell of the sewing machine, and the other end of the pushing component 2 is provided with a pushing part 23 used for being connected with the presser foot component 1; a pressing member 3, the pressing member 3 being movably provided on the cabinet; the pressing part 3 is arranged at one end of the pushing part 2 far away from the pressing wheel 11, so that the pushing part 3 can extrude the pushing part 2, and the pushing part 23 can drive the pressing wheel 11 to press the part to be fixed; or the pushing component 2 is loosened through the pressing component 3, so that the pushing part 23 drives the pressure wheel 11 to reduce the pressure of the pressure wheel 11 on the component to be fixed. Therefore, the pressure of the material pressing wheel 11 on the presser foot component 1 to the part to be fixed can be adjustably set by utilizing an elastic lever component and through lever deformation transmission, and the adjustment is convenient and easy to control, and larger pressure adjustable quantity can be provided. The problem of sewing machine among the prior art to the regulation inconvenient of presser foot pressure is solved.

Preferably, the pushing member 2 in this embodiment is made of a material with good elastic deformation.

Specifically, the pressing member 3 is disposed at one end of the pushing member 2 far from the nip wheel 11, so that the pushing member 2 is pressed by the pressing member 3, the pushing portion 23 moves in a direction close to the nip wheel 11, and the nip wheel 11 is driven to press the member to be fixed; or the pushing member 2 is loosened by the pressing member 3, the pushing portion 23 is moved in a direction away from the nip wheel 11, and the nip wheel 11 releases the member to be fixed.

In the adjusting structure of the present embodiment, referring to fig. 1 and 2, the adjusting structure includes a supporting member 4, the supporting member 4 is mounted on the housing of the sewing machine, at least a portion of the pushing member 2 is sleeved on the supporting member 4, and the pushing portion 23 is disposed at an end of the pushing member 2 away from the supporting member 4. Thus, by fixing one end of the pushing member 2 to the supporting member 4, the other end of the pushing member 2 obtains a larger elastic force, which is more beneficial to the pushing action of the pushing portion 23.

Preferably, the supporting member 4 in this embodiment is a fixed pin, which reduces the production cost and facilitates the deformation of the pushing member 2 to provide the pushing force.

Referring to fig. 1 and 2, in the adjusting structure of the present embodiment, the pushing member 2 includes a first connecting body 21 and a second connecting body 22; one end of the first connecting body 21 is connected with the supporting member 4, and the other end of the first connecting body 21 is connected with the second connecting body 22; one end of the second connecting body 22 is connected to the first connecting body 21, and the other end of the second connecting body 22 is provided with a pushing portion 23. With the above arrangement, the first connecting body 21 is mainly used for providing elastic deformation, and the second connecting body 22 is mainly used for providing support for the pushing portion 23. In this way, the regulating action of the pushing member 2 is made more effective.

In the adjusting structure of the present embodiment, referring to fig. 1 and 2, the first connecting body 21 includes an elastic portion 211, the elastic portion 211 is a plate-shaped structure, and the elastic portion 211 has a contact surface 2111 for abutting against the pressing member 3. Thus, the pushing member 2 can be more effectively pressed by the pressing member 3, which is advantageous for the pushing member 2 to obtain elastic deformation.

Referring to fig. 1 and 2, in the adjusting structure of the present embodiment, the pressing member 3 is movably disposed along a first predetermined direction, the elastic portion 211 is an arc-shaped plate-shaped structure, and a straight line of the first predetermined direction is parallel to a radial plane of the elastic portion 211. Thus, the pushing member 2 can be more effectively pressed by the pressing member 3, which is advantageous for the pushing member 2 to obtain elastic deformation.

In the adjustment structure of the present embodiment, referring to fig. 1 and 2, the elastic portion 211 extends in a second predetermined direction, which is perpendicular to the first predetermined direction; wherein a minimum width of the elastic part 211 in the second predetermined direction is greater than a maximum thickness of the elastic part 211 in the radial direction. Thus, the pushing member 2 can be more effectively pressed by the pressing member 3, which is advantageous for the pushing member 2 to obtain elastic deformation.

Referring to fig. 1 and 2, in the adjusting structure of the present embodiment, the second connecting body 22 is an arc-shaped plate-shaped structure, and the second connecting body 22 extends along a second predetermined direction; and/or the second connecting body 22 is connected with one side of the first connecting body 21 close to the pressing part 3.

In this embodiment, the second connecting body 22 is an arc-shaped plate-shaped structure, and the second connecting body 22 extends along the second predetermined direction, so that the pushing member 2 can be more effectively pressed by the pressing member 3, which is beneficial to the pushing member 2 to obtain elastic deformation.

In the present embodiment, the second connecting body 22 is connected to the first connecting body 21 on the side close to the push-down member 3. Thus, the structure is more stable, and when the first connecting body 21 is elastically deformed, the elastic deformation is more favorably transmitted to the second connecting body 22, so that the second connecting body drives the pushing part 23 to move.

In the adjusting structure of the present embodiment, referring to fig. 1 and fig. 3, the adjusting structure further includes a presser bar 5, the presser bar 5 includes a first connecting portion 51 for connecting with the pushing portion 23 and a second connecting portion 52 for connecting with the presser assembly 1, and the presser bar 5 is movably disposed to drive the presser assembly 1 to move. In this way, the moving direction of the presser foot assembly 1 is adjusted by the arrangement direction and posture of the presser foot lever 5, so that the presser foot operation is more efficient.

Referring to fig. 1 and 3, in the adjusting structure of the present embodiment, the first connecting portion 51 includes a supporting groove 511, the pushing portion 23 is clamped in the supporting groove 511, and a groove bottom of the supporting groove 511 is used for abutting against the pushing portion 23, so that the pushing portion 23 pushes or releases the first connecting portion 51. In this way, the connection between the pushing portion 23 and the first connecting portion 51 is ensured, and the pushing portion 23 can transmit the deformation of the first connecting body 21 to the presser bar 5 to drive the presser bar 5 to push the presser foot assembly 1 to move.

In the adjusting structure of the present embodiment, referring to fig. 1 and fig. 3, the adjusting structure further includes a guiding component 6, the guiding component 6 includes a guiding groove 61, the guiding groove 61 is disposed along the moving direction of the presser bar 5, and the presser bar 5 is provided with a guiding block 53 for cooperating with the guiding groove 61. Therefore, the presser foot rod 5 can move along a preset track, the phenomenon that the presser foot rod turns over and deflects movably due to uneven stress is avoided, and the effectiveness of the presser foot operation is ensured.

The sewing machine of this implementation, including adjusting the structure, adjust the structure for foretell regulation structure.

The assembly structure of the sewing machine of the embodiment is as follows:

the pressure regulating part (the lower pressing part 3) is connected to the sewing machine body and can move up and down, one end of the pressure regulating part abuts against the elastic pressure part (the pushing part 2), one end of the elastic pressure part abuts against the supporting part, the elastic pressure part can swing along the axis of the supporting part 4, and the supporting part 4 is fixedly connected to the sewing machine body; the other end of the elastic pressure member abuts against the support groove 511 of the pressure adjustment support base (the first connection portion 51), and the end of the elastic pressure member abutting against the support groove 511 can slide in the groove direction, so that the elastic pressure member and the support groove 511 can always maintain a contact state when the pressure adjustment support base vertically moves up and down.

The pressure adjustment supporting seat is fixedly connected to the presser bar rod 5, the presser bar rod 5 can vertically move up and down, one end of the presser bar rod 5 is connected with a presser foot connecting mechanism (presser foot component 1), the presser bar rod 5 is abutted to the piece and fixedly connected to the presser bar rod, the presser foot is abutted to the piece and abutted to the presser foot connecting mechanism, and the roller presser foot component is connected to the presser foot connecting mechanism.

The material pressing principle of the sewing machine of the embodiment is as follows:

adjusting the pressure of material pressing:

when a material pressing wheel 11 on the roller presser foot component presses a sewing material (a component to be fixed), the pressure adjusting piece moves downwards, the pressure adjusting piece applies downward pressure to the elastic pressure piece, the elastic deformation of the elastic pressure piece under the action of force is increased, the elastic pressure piece provides downward acting pressure for the pressure adjusting support, the presser bar 5 is simultaneously under the action of downward pressure, and the pressure action is transmitted to the presser foot connecting mechanism and the roller presser foot component connected to the presser bar through the presser bar abutting piece, so that the pressure action of the material pressing wheel 11 on the sewing material is increased;

material pressing pressure is adjusted to be small:

when the material pressing wheel on the roller presser foot component presses the sewing material, the pressure adjusting piece moves upwards, the elastic deformation of the pressure adjusting piece is reduced, and therefore the pressure of the material pressing wheel 11 on the sewing material is reduced through pressure adjustment.

It should be noted that the guide rod (guide part 6) is fixedly connected to the sewing machine body, and the guide rod ensures that the pressure regulating support can only slide up and down, so as to prevent circumferential rotation, thereby avoiding circumferential rotation of the presser foot rod fixedly connected with the pressure regulating support.

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 adjusting the pressure on the part to be fixed on the operation part 10 of the sewing machine, and comprises: the presser foot component 1, the presser foot component 1 includes the pinch roller 11; a pushing component 2, one end of the pushing component 2 is arranged on the shell of the sewing machine, and the other end of the pushing component 2 is provided with a pushing part 23 used for being connected with the presser foot component 1; a pressing member 3, the pressing member 3 being movably provided on the cabinet; the pressing part 3 is arranged at one end of the pushing part 2 far away from the pressing wheel 11, so that the pushing part 3 can extrude the pushing part 2, and the pushing part 23 can drive the pressing wheel 11 to press the part to be fixed; or the pushing component 2 is loosened through the pressing component 3, so that the pushing part 23 drives the pressure wheel 11 to reduce the pressure of the pressure wheel 11 on the component to be fixed. Therefore, the pressure of the material pressing wheel 11 on the presser foot component 1 to the part to be fixed can be adjustably set by utilizing an elastic lever component and through lever deformation transmission, and the adjustment is convenient and easy to control, and larger pressure adjustable quantity can be provided. The problem of sewing machine among the prior art to the regulation inconvenient of presser foot pressure is solved.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 adjusting the magnitude of pressure to which a member to be fixed on an operating portion (10) of a sewing machine is subjected, characterized by comprising:

the pressure foot component (1), the pressure foot component (1) comprises a pressure wheel (11);

the device comprises a pushing component (2), wherein one end of the pushing component (2) is installed on a shell of the sewing machine, and the other end of the pushing component (2) is provided with a pushing part (23) used for being connected with the presser foot component (1);

a pressing member (3), the pressing member (3) being movably provided on the housing;

the pressing part (3) is arranged at one end, far away from the pressing wheel (11), of the pushing part (2), so that the pushing part (2) is extruded through the pressing part (3), and the pressing wheel (11) is driven by the pushing part (23) to press the part to be fixed; or the pushing component (2) is loosened through the pressing component (3), so that the pushing part (23) drives the pressing wheel (11) to reduce the pressure of the pressing wheel (11) on the component to be fixed.

2. The adjusting mechanism of claim 1, characterized in that the adjusting mechanism comprises a support member (4), the support member (4) is mounted on a housing of the sewing machine, at least a portion of the pushing member (2) is fitted over the support member (4), and the pushing portion (23) is provided at an end of the pushing member (2) away from the support member (4).

3. The adjustment structure according to claim 2, characterized in that the pushing member (2) comprises a first connection body (21) and a second connection body (22); one end of the first connecting body (21) is connected with the supporting piece (4), and the other end of the first connecting body (21) is connected with the second connecting body (22); one end of the second connecting body (22) is connected with the first connecting body (21), and the other end of the second connecting body (22) is provided with the pushing part (23).

4. The adjustment arrangement according to claim 3, characterized in that the first connection body (21) comprises an elastic portion (211), the elastic portion (211) being of plate-like construction, the elastic portion (211) having a contact surface (2111) for abutment with the hold-down member (3).

5. The adjustment arrangement according to claim 4, characterized in that the hold-down element (3) is movably arranged in a first predetermined direction, the resilient part (211) is of an arc-shaped plate-like configuration, and a line in the first predetermined direction is parallel to a radial plane of the resilient part (211).

6. The adjustment structure according to claim 5, characterized in that said elastic portion (211) extends along a second predetermined direction, said second predetermined direction being perpendicular to said first predetermined direction; wherein a minimum width of the elastic part (211) in the second predetermined direction is greater than a maximum thickness of the elastic part (211) in a radial direction.

7. The adjustment structure according to claim 6, characterized in that the second connection body (22) is an arc-shaped plate-like structure, the second connection body (22) extending in the second predetermined direction; and/or the second connecting body (22) is connected with one side of the first connecting body (21) close to the pressing component (3).

8. The adjustment arrangement according to claim 1, characterized in that the adjustment arrangement further comprises a presser bar (5), the presser bar (5) comprising a first connection portion (51) for connection with the push portion (23) and a second connection portion (52) for connection with the presser foot assembly (1), the presser bar (5) being movably arranged to bring the presser foot assembly (1) into motion.

9. The adjustment structure according to claim 8, wherein the first connection portion (51) comprises a support groove (511), the pushing portion (23) is clamped in the support groove (511), and a groove bottom of the support groove (511) is used for abutting against the pushing portion (23) so that the pushing portion (23) pushes or loosens the first connection portion (51).

10. The adjustment structure according to claim 8, characterized in that the adjustment structure further comprises a guide member (6), the guide member (6) comprises a guide groove (61), the guide groove (61) is arranged along the moving direction of the presser bar (5), and a guide block (53) for cooperating with the guide groove (61) is arranged on the presser bar (5).

11. A sewing machine comprising an adjustment structure, characterized in that the adjustment structure is as claimed in any one of claims 1 to 10.