CN210712006U

CN210712006U - Sewing machine needle distance adjusting mechanism and sewing machine with same

Info

Publication number: CN210712006U
Application number: CN201921537298.4U
Authority: CN
Inventors: 熊径武
Original assignee: Zhejiang Dole Sewing Machine Co ltd
Current assignee: Zhejiang Dole Sewing Machine Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-09
Anticipated expiration: 2029-09-16

Abstract

The utility model provides a sewing machine gauge needle adjustment mechanism and have its sewing machine. The needle distance adjusting mechanism of the sewing machine comprises a driving portion, a connecting rod portion and a swinging plate seat, wherein a first end of the connecting rod portion is connected with the driving portion, a first end of the swinging plate seat is arranged towards one side where a presser foot of the sewing machine is located, a second end of the swinging plate seat is arranged opposite to the first end of the swinging plate seat, a second end of the swinging plate seat is connected with a second end of the connecting rod portion, and the driving portion can drive the connecting rod portion to drive the swinging plate seat to swing so as to adjust the needle distance of the sewing machine. One end of the swing plate seat far away from the sewing machine presser foot is connected with the second end of the connecting rod part, and the driving part drives the swing plate seat to swing through the driving connecting rod part so as to adjust the needle pitch of the sewing machine, so that the utilization rate of the space in the sewing machine is improved, and the noise is reduced.

Description

Sewing machine needle distance adjusting mechanism and sewing machine with same

Technical Field

The utility model relates to a sewing machine technical field particularly, relates to a sewing machine gauge needle adjustment mechanism and have its sewing machine.

Background

The needle pitch adjusting function of the current industrial flat sewing machine is realized by a mechanical structure through manual operation. The mechanical stitch length adjustment has limitations, the required stitch length cannot be quickly adjusted, and the stitch length cannot be adjusted at any time in the sewing process to adapt to various sewing conditions. Parts of the mechanical structure are abraded after long-time use, the precision is influenced, and the size of the needle pitch is also influenced. The common backstitch mode of the industrial sewing machine is an automatic backstitch function driven by a manual pressing backstitch wrench and a backstitch electromagnet, the electromagnet is high in driving noise, the dense seam and the backstitch stitch distance cannot be accurately controlled, the electromagnet occupies a large space, the space utilization rate is low, and the function is single.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sewing machine gauge needle adjustment mechanism and have its sewing machine to solve the problem that space utilization is low in the sewing machine among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a needle pitch adjusting mechanism of a sewing machine, comprising: a drive section; the first end of the connecting rod part is connected with the driving part; the sewing machine comprises a swinging plate seat, wherein a first end of the swinging plate seat is arranged towards one side of a presser foot of the sewing machine, a second end of the swinging plate seat is arranged opposite to the first end of the swinging plate seat, a second end of the swinging plate seat is connected with a second end of a connecting rod part, a driving part can drive the connecting rod part to drive the swinging plate seat to swing so as to adjust the needle pitch of the sewing machine, a U-shaped notch is formed in the side edge of the swinging plate seat, a stopping part is arranged on the end face of the second end of the swinging plate seat, and the second end of the connecting rod part is connected with the surface of the swinging plate seat, which is.

Further, the swing plate seat comprises a first assembly section, a second assembly section and a third assembly section, the first assembly section, the second assembly section and the third assembly section are sequentially connected and enclosed to form a U-shaped structure, the first assembly section forms a first end of the swing plate seat, the third assembly section forms a second end of the swing plate seat, and the stopping portion is arranged on the outer surface of the third assembly section.

Further, the outer surface of the first component section is provided with a plurality of pin holes.

Further, the outer surface of the second component section, which is opposite to the U-shaped notch, is an arc surface.

Further, the link portion includes: the first end of the first connecting rod is rotatably connected with the second end of the swinging plate seat; and the first end of the second connecting rod is hinged with the second end of the first connecting rod, and the second end of the second connecting rod is connected with the driving part.

Further, the first connecting rod is of an arc-shaped structure.

Further, the driving part is a stepping motor.

Further, the needle pitch adjusting mechanism of the sewing machine further comprises: and the control module is electrically connected with the driving part and is used for controlling the steering and rotating angle of an output shaft of the driving part.

According to another aspect of the present invention, there is provided a sewing machine, comprising a sewing machine stitch length adjusting mechanism, the sewing machine stitch length adjusting mechanism is the above sewing machine stitch length adjusting mechanism.

Use the technical scheme of the utility model, through keeping away from the one end of sewing machine presser foot with the swing plate seat and being connected with the second end of connecting rod portion, the drive division passes through drive connecting rod portion in order to drive the swing plate seat swing in order to adjust sewing machine's gauge needle, sets up the utilization ratio that has improved the space in the sewing machine like this to the noise has been reduced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a stitch gauge adjusting mechanism of a sewing machine according to the present invention;

fig. 2 shows an enlarged schematic view of the structure at a in fig. 1.

Wherein the figures include the following reference numerals:

10. a link section; 11. a first link; 12. a second link;

20. a swing plate base; 21. a first composition segment; 211. a pin hole; 22. a second composition segment; 23. a third group of segments; 231. a stopper portion;

30. a presser foot;

40. a drive section.

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 accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 2, according to an embodiment of the present invention, a needle pitch adjusting mechanism of a sewing machine is provided.

Specifically, as shown in fig. 1, the needle pitch adjusting mechanism of the sewing machine includes a driving portion 40, a link portion 10 and a swing plate seat 20, wherein a first end of the link portion 10 is connected to the driving portion 40, a first end of the swing plate seat 20 is disposed toward a side where a presser foot 30 of the sewing machine is located, a second end of the swing plate seat 20 is disposed opposite to the first end of the swing plate seat 20, a second end of the swing plate seat 20 is connected to a second end of the link portion 10, and the driving portion 40 can drive the link portion 10 to drive the swing plate seat 20 to swing to adjust the needle pitch of the sewing machine.

In this embodiment, through keeping away from the one end of sewing machine presser foot with the swing plate seat and being connected with the second end of connecting rod portion, drive portion 40 is through drive connecting rod portion in order to drive the swing plate seat swing in order to adjust sewing machine's gauge needle, sets up the utilization ratio that has improved the space in the sewing machine like this to the noise has been reduced.

As shown in fig. 1, a U-shaped notch is formed on a side edge of the swing plate seat 20, a stop portion 231 is disposed on an end surface of the second end of the swing plate seat 20, and the second end of the link portion 10 is connected to a surface of the swing plate seat 20 on a side of the stop portion 231. The stopping part 231 is arranged on the end surface of the second end of the swing plate seat 20, so that a safe movement area of the connecting rod part is formed in the movement stroke of the connecting rod part, and the phenomenon that the mechanism is blocked due to overlarge movement of the connecting rod is prevented.

As shown in fig. 2, the swing plate seat 20 includes a first component section 21, a second component section 22, and a third component section 23, the first component section 21, the second component section 22, and the third component section 23 are sequentially connected to form a U-shaped structure, the first component section 21 forms a first end of the swing plate seat 20, the third component section 23 forms a second end of the swing plate seat 20, and a stop 231 is disposed on an outer surface of the third component section 23. The first component section 21, the second component section 22 and the third component section 23 are sequentially connected and enclosed to form a U-shaped structure, a containing space is formed in the middle of the U-shaped structure, so that the containing space is internally provided with a connecting component, and the connecting component in the containing space can be connected with a foot pressing component outside the containing space through a notch of the U-shaped structure.

In the present embodiment, the outer surface of the first constituent section 21 is provided with a plurality of pin holes 211. At least one pin hole 211 can be inserted with a connecting pin, the driving part 40 can drive the swing plate seat to rotate around the connecting pin through the connecting rod part 10, so as to achieve the purpose of changing the stitch length of the sewing machine.

As shown in fig. 2, the outer surface of the second component section 22 opposite the U-shaped notch is curved. The arrangement ensures that the outer surface of the second component section 22 is not easy to interfere with other structural components in the sewing machine, and improves the utilization rate of the use space in the sewing machine.

As shown in fig. 1, the link portion 10 includes a first link 11 and a second link 12, a first end of the first link 11 is rotatably connected to a second end of the swing plate base 20, a first end of the second link 12 is hinged to a second end of the first link 11, and a second end of the second link 12 is connected to the driving portion 40. The driving part 40 drives the first connecting rod 11 to swing through the rotation of the second connecting rod 12, and then drives the swing plate seat to rotate around the connecting pin, so as to achieve the purpose of changing the needle pitch of the sewing machine.

Preferably, the first link 11 has an arc-shaped configuration. The arrangement effectively utilizes the use space in the sewing machine and prevents the first connecting rod 11 from interfering with other structural components in the sewing machine to cause the blocking phenomenon.

In the present embodiment, the driving portion 40 is a stepping motor.

In this embodiment, the needle pitch adjusting mechanism of the sewing machine further comprises a control module, the control module is electrically connected with the driving part, and the control module is used for controlling the steering and the rotation angle of the output shaft of the driving part. The control module can control the rotation direction and the rotation angle of the output shaft of the driving part so as to change the rotation angle and the rotation frequency of the swing plate seat, thereby achieving the purpose of changing the needle pitch of the sewing machine.

The needle pitch adjusting mechanism of the sewing machine of the embodiment can also be used in the technical field of sewing machine equipment, namely, the utility model discloses a further aspect provides a sewing machine. The sewing machine comprises a needle pitch adjusting mechanism of the sewing machine, wherein the needle pitch adjusting mechanism of the sewing machine is the needle pitch adjusting mechanism of the sewing machine in the embodiment.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

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. A sewing machine needle pitch adjustment mechanism, comprising:

a drive unit (40);

the first end of the connecting rod part (10) is connected with the driving part (40);

the first end of the swinging plate seat (20) faces to one side where a presser foot (30) of the sewing machine is located, the second end of the swinging plate seat (20) is arranged opposite to the first end of the swinging plate seat (20), the second end of the swinging plate seat (20) is connected with the second end of the connecting rod part (10), and the driving part (40) can drive the connecting rod part (10) to drive the swinging plate seat (20) to swing so as to adjust the needle pitch of the sewing machine;

the side edge of the swing plate seat (20) is provided with a U-shaped notch, the end face of the second end of the swing plate seat (20) is provided with a stopping part (231), and the second end of the connecting rod part (10) is connected with the surface of the swing plate seat (20) on one side of the stopping part (231).

2. The needle pitch adjustment mechanism of a sewing machine according to claim 1, wherein the swing plate base (20) comprises a first component (21), a second component (22) and a third component (23), the first component (21), the second component (22) and the third component (23) are sequentially connected to enclose a U-shaped structure, the first component (21) forms a first end of the swing plate base (20), the third component (23) forms a second end of the swing plate base (20), and the stopper (231) is disposed on an outer surface of the third component (23).

3. Sewing machine gauge adjustment mechanism according to claim 2, characterized in that the outer surface of the first component section (21) is provided with a plurality of pin holes (211).

4. Sewing machine gauge adjustment mechanism according to claim 2, characterized in that the outer surface of the second component part (22) opposite the U-shaped notch is curved.

5. The sewing machine gauge adjusting mechanism according to claim 1, wherein the link portion (10) includes:

a first connecting rod (11), wherein a first end of the first connecting rod (11) is rotatably connected with a second end of the swinging plate seat (20);

a second connecting rod (12), wherein the first end of the second connecting rod (12) is hinged with the second end of the first connecting rod (11), and the second end of the second connecting rod (12) is connected with the driving part (40).

6. Sewing machine gauge adjustment mechanism according to claim 5, characterized in that the first link (11) is of an arc-shaped configuration.

7. The needle pitch adjustment mechanism of a sewing machine according to claim 1, wherein the drive portion (40) is a stepping motor.

8. The sewing machine gauge adjustment mechanism of claim 1, further comprising:

the control module is electrically connected with the driving part (40) and is used for controlling the steering and the rotation angle of an output shaft of the driving part (40).

9. A sewing machine comprising a sewing machine pitch adjustment mechanism, characterized in that the sewing machine pitch adjustment mechanism is the sewing machine pitch adjustment mechanism of any one of claims 1 to 8.