CN214193709U

CN214193709U - Multifunctional driving device of sewing machine

Info

Publication number: CN214193709U
Application number: CN202022707195.7U
Authority: CN
Inventors: 林子春; 刘霖; 林群
Original assignee: Qixing Intelligent Technology Co Ltd
Current assignee: Qixing Intelligent Technology Co Ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-09-14
Anticipated expiration: 2030-11-19

Abstract

The application provides a multifunctional driving device of a sewing machine, in particular to the technical field of sewing machines, the driving device comprises a motor, an electromagnetic clutch, a backstitch linkage device, a thread trimming linkage device and a presser foot lifting linkage device, an output shaft of the motor controls the backstitch linkage device, the thread trimming linkage device and the presser foot lifting linkage device, the motor performs backstitch action by back and forth rotation when the electromagnetic clutch is connected or disconnected with the backstitch linkage device, the motor performs thread trimming action of the thread trimming linkage device and presser foot lifting action of the presser foot lifting linkage device by back and forth rotation when the electromagnetic clutch is disconnected or connected with the backstitch linkage device, the motor is arranged on the machine body of the sewing machine, the motor controls different sewing actions in different time periods, and the sewing actions are not interfered with each other, the intelligent control level of the sewing machine is improved.

Description

Multifunctional driving device of sewing machine

Technical Field

The application provides a multi-functional drive arrangement of sewing machine, concretely relates to sewing machine technical field.

Background

A sewing machine is a machine for forming one or more stitches on a material to be sewn using one or more sewing threads to interlace or sew one or more layers of the material, and is a conventional sewing device capable of sewing fabrics such as cotton, hemp, silk, wool, rayon, etc., and products such as leather, plastic, paper, etc. With the development of sewing machine technology, many manufacturers improve the sewing operation of the sewing machine, and some manufacturers propose to use only one motor to control a plurality of sewing operations, so that the programmed control level of the sewing machine can be further improved, and the manufacturing cost of the sewing machine is reduced. However, in actual production, the motor adopts a double-head power output mode, so that the motor is difficult to install on a base of the sewing machine, and the technology is difficult to popularize and use.

Disclosure of Invention

Aiming at the defects existing in the motor installation in the prior sewing machine technology, the multifunctional driving device of the sewing machine is convenient to install, simple in structure and modularized, and is characterized in that the driving device comprises a motor, an electromagnetic clutch, a backstitch linkage device, a thread cutting linkage device and a presser foot lifting linkage device, an output shaft of the motor controls the backstitch linkage device, the thread cutting linkage device and the presser foot lifting linkage device, the motor performs backstitch action in a back-and-forth rotation mode when the backstitch linkage device is connected or disconnected, the motor performs thread cutting action of the thread cutting linkage device and presser foot lifting action of the presser foot lifting linkage device in a back-and-forth rotation mode when the backstitch linkage device is disconnected or connected, the motor is installed on a machine body of the sewing machine, the motor controls different sewing actions in different time periods, the sewing actions are not interfered with each other and do not influence each other, and the intelligent control level of the sewing machine is improved.

Preferably, the output shaft is controlled to be provided with the backward sewing linkage device, the thread trimming linkage device and the presser foot lifting linkage device in one of the following mounting modes:

a reverse seam linkage device is fixed on the output shaft; the output shaft is fixed with a backstitch linkage device, and the output shaft is fixed with a trimming linkage device; the output shaft is fixed with a backstitch linkage device, and the output shaft is fixed with a presser foot lifting linkage device.

Preferably, the electromagnetic clutch has a driven wheel and a driving wheel sleeved on the output shaft, the driving wheel is sleeved on the driving wheel, the driving wheel is transmitted by the driving wheel to rotate back and forth to the driven wheel, the driving wheel of the electromagnetic clutch is connected with the driven wheel, the electromagnetic clutch controls the driving wheel in a clutch mode, and the driving wheel is connected with the driving wheel to execute the backstitch action. The clutch function of the motor realizes the backstitch action and has high operability.

Preferably, the motor is installed on the right side surface of the sewing machine body; or the motor is arranged on the rear side panel of the sewing machine body; or the motor is arranged on the front side panel of the sewing machine body and is provided with a cover. The motor installation mode is a practical and feasible setting no matter at that position, and the motor installation has higher practical significance.

Preferably, the output shaft is fixed with a thread cutting crank, the thread cutting crank is located inside a thread cutting fork wheel, the thread cutting fork wheel is linked with a thread cutting connecting rod, and the thread cutting connecting rod pushes a thread cutting tail end execution assembly to implement thread cutting.

Preferably, the thread cutting fork wheel is axially and movably connected to the fixed shaft, the fixed shaft is fixedly connected to the support, the support is fixed to the motor, and the fixed shaft is fixed and has an obvious technical effect.

Preferably, the output shaft of the motor is fixed with a pressure foot lifting cam, the pressure foot lifting cam abuts against a pressure foot lifting connecting rod at different positions at different time, and the pressure foot lifting connecting rod pushes a pressure foot lifting tail end execution assembly of the pressure foot lifting linkage device to perform pressure foot lifting action.

Preferably, the driving device assembly integrates a motor, an electromagnetic clutch, a backstitch linkage device, a trimming linkage device and a presser foot lifting linkage device into a whole to form a modular product. Of course, the present invention is not limited to the above modularization, and the assembly of the components can achieve the same technical effect.

Compared with the prior art, the beneficial effects of this application are: the multifunctional driving device of the sewing machine is convenient to install, simple in structure, capable of forming a modular product and convenient to install on various sewing machines of different models. Modular's drive arrangement standardizes on the one hand in the manufacturing, does benefit to the improvement of product quality, and on the other hand sewing machine is more convenient in installation or maintenance, also does benefit to the sewing machine who installs additional simultaneously and uses this product, has higher spreading value.

Drawings

FIG. 1 is an internal configuration view of a multi-function driving apparatus of a sewing machine according to the present application;

FIG. 2 is a schematic view of an installation position of a motor of a multi-function driving apparatus of a sewing machine according to the present application;

FIG. 3 is a schematic view of a multi-function drive and its various linkages of a sewing machine according to the present application;

FIG. 4 is a schematic view of a thread trimming linkage and a presser foot lifting linkage of the multi-function drive of the present application;

FIG. 5 is a broken state view of the thread trimming linkage and the presser foot lifting linkage of the multi-function driving apparatus of the sewing machine according to the present application.

Reference numerals: the sewing machine comprises a motor 10, an electromagnetic clutch 11, a fixed shaft 12, an output shaft 13, a support 14, a cover cap 15, a machine body 20, a driven wheel 21, a driving wheel 22, a driving wheel 23, an elastic element 3, a swing seat connecting rod 41, a swing seat 42, a feeding shaft 43, a thread cutting crank 51, a thread cutting fork wheel 52, a thread cutting connecting rod 53, a pressure foot lifting cam 61, a pressure foot lifting connecting rod 62, a backstitch linkage device 70, a pressure foot lifting linkage device 80 and a thread cutting linkage device 90.

Detailed Description

The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, is provided to enable those skilled in the art to more readily understand the advantages and features of the present application, and is intended to more clearly and distinctly define the scope of the invention, which is set forth by way of illustration only and is not intended to be limiting of the invention.

With reference to the drawings, the multifunctional driving device of the sewing machine comprises a motor 10, an electromagnetic clutch 11, a backstitch linkage 70, a trimming linkage 90 and a presser foot lifting linkage 80, and the driving device assembly effectively integrates the motor 10, the electromagnetic clutch 11, the backstitch linkage 70, the trimming linkage 90 and the presser foot lifting linkage 80 into a whole to form a modular product which is convenient to install on various sewing machines of different models. Modular drive arrangement's on the one hand standardizes in the manufacturing, does benefit to the improvement of product quality, and on the other hand sewing machine is more convenient in installation or maintenance, also does benefit to the sewing machine who installs additional simultaneously and uses this product.

The multifunctional driving device of the sewing machine is provided with an electromagnetic clutch 11, the motor 10 performs the backstitch action by back and forth rotation when the electromagnetic clutch 11 is connected or disconnected with the backstitch linkage device 70, and the motor 10 performs the thread cutting action of the thread cutting linkage device 90 and the presser foot lifting action of the presser foot lifting linkage device 80 by back and forth rotation when the electromagnetic clutch 11 is disconnected or connected with the backstitch linkage device 70. The motor 10 is mounted on the machine body 20 of the sewing machine, and specifically, may be mounted on the right side surface of the machine body 20 of the sewing machine, and may also be mounted on the back side panel or the front side panel of the machine body 20 of the sewing machine, in the embodiment, the right side surface of the machine body 20 on which the motor 10 is mounted is used for explanation, and it is worth proposing that the mounting manner of the motor 10 is not limited to this right side surface mounting scheme. The electromagnetic clutch 11 is mounted on an end cap portion of the motor 10.

The motor 10 has an output shaft 13 as a coming-rotation output end, and the output shaft 13 controls the backstitch linkage 70, the trimming linkage 90 and the presser foot lifting linkage 80, wherein the electromagnetic clutch 11 drives the backstitch linkage 70 to operate by the back-and-forth rotation of the motor 10 by utilizing the clutch function, and the output shaft 13 drives the trimming linkage 90 and the presser foot lifting linkage 80 to operate by the back-and-forth rotation of the motor 10. The output shaft 13 drives the backstitch linkage 70, the trimming linkage 90 and the presser foot lifting linkage 80 at different time periods, and the devices do not interfere with each other and do not affect each other when performing sewing. In addition to the above scheme that the output shaft 13 controls the backstitch linkage 70, the trimming linkage 90 and the presser foot lifting linkage 80, the present application also provides the installation mode of the other three linkages, namely, the backstitch linkage 70 is fixed on the output shaft 13 at the back-and-forth rotation output end of the motor 10; secondly, a backstitch linkage device 70 is fixed on the output shaft 13 at the back-and-forth rotation output end of the motor 10, and a trimming linkage device 90 is fixed on the output shaft 13; thirdly, a backward sewing linkage device 70 is fixed on the output shaft 13 at the back-and-forth rotation output end of the motor 10, and a presser foot lifting linkage device 80 is fixed on the output shaft 13.

The electromagnetic clutch 11 has a cover 15, and the cover 15 covers the electromagnetic clutch 11 and the backstitch linkage 70. The backstitch linkage 70 has a motor 10, an electromagnetic clutch 11, and an output shaft 13, and the electromagnetic clutch 11 has a driven pulley 21, a driving pulley 22, a transmission pulley 23, and an elastic member 3. The electromagnetic clutch 11 has a driven wheel 21 and a driving wheel 23 sleeved on the output shaft 13, a driving wheel 22 sleeved on the driving wheel 23, and in an initial state, the driving wheel 22 is sleeved and connected with the driving wheel 23, and the driving wheel 23 is transmitted by the driving wheel 22 to rotate to the driven wheel 21 (shown in fig. 4 and 5). The driven wheel 21 is linked with a swing seat connecting rod 41, the swing seat connecting rod 41 receives a swing source generated by the rotation of the motor 10 to the swing seat 42, and the swing seat 42 transmits the driving source to the feeding shaft 43 to realize the backstitch action.

As the initial state is that the driving wheel 22 is connected with the transmission wheel 23 to perform the backstitch action, the scheme can also connect the driving wheel 22 with the driven wheel 21, and the electromagnetic clutch 11 is in clutch control over the transmission wheel 23, so that the initial state is that the driving wheel 22 is disconnected with the transmission wheel 23, and the transmission wheel 23 is connected with the driving wheel 22 to perform the backstitch action.

After the backstitch action is finished, the electromagnetic clutch 11 drives the clutch function to stop the swinging seat 42 swinging, and the electromagnetic clutch 11 starts the suction action to separate the driving wheel 22 from the driven wheel 21. After the driving wheel 22 is separated from the driven wheel 21, the electromagnetic clutch 11 is engaged to make the driving wheel 22 abut against the motor 10, and the elastic member 3 is pressed between the motor 10 and the driving wheel 22.

After the reverse sewing operation is completed in the reverse sewing corner of the motor 10, the motor 10 changes the corner to perform other sewing operations. The present embodiment first performs the trimming operation of the trimming linkage 90. The trimming linkage 90 has a motor 10, an output shaft 13, a trimming crank 51, a trimming fork wheel 52, a trimming link 53, and a trimming end effector assembly. The output shaft 13 of the motor 10 is fixed with a thread cutting crank 51, the thread cutting crank 51 is located inside a thread cutting fork wheel 52, the thread cutting fork wheel 52 is linked with a thread cutting connecting rod 53, and the thread cutting connecting rod 53 pushes a thread cutting end executing component to implement thread cutting. The thread cutting fork wheel 52 is axially movably connected to the fixed shaft 12, so that the thread cutting fork wheel 52 has a rotating shaft as a fulcrum under the pushing of the thread cutting crank 51, the fixed shaft 12 is fixedly connected to the bracket 14, and the bracket 14 is fixed on the motor 10.

After the motor 10 completes the thread trimming operation in a short time, the motor 10 immediately performs the presser foot lifting operation within the presser foot lifting rotation angle. The presser foot lifting linkage 80 has a motor 10, an output shaft 13, a presser foot lifting cam 61, a presser foot lifting link 62 and a presser foot lifting end actuator assembly. The output shaft 13 of the motor 10 is fixed with a pressure raising and pressing foot cam 61, the pressure raising and pressing foot cam 61 abuts against a pressure raising and pressing foot connecting rod 62 at different positions at different time, and the pressure raising and pressing foot connecting rod 62 pushes a pressure raising and pressing foot end executing component of the pressure raising and pressing foot linkage device 80 to carry out pressure raising and pressing foot action.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A multifunctional driving device of a sewing machine is characterized in that the driving device comprises a motor (10), an electromagnetic clutch (11), a backstitch linkage device (70), a thread cutting linkage device (90) and a presser foot lifting linkage device (80), an output shaft (13) of the motor (10) controls a backstitch linkage device (70), a thread cutting linkage device (90) and a presser foot lifting linkage device (80), the electromagnetic clutch (11) is used for executing the backstitch action by the motor (10) in a way of rotating back and forth when the backstitch linkage device (70) is connected or disconnected, when the electromagnetic clutch (11) is disconnected or connected with the backstitch linkage device (70), the motor (10) sequentially executes the thread cutting action of the thread cutting linkage device (90) and the presser foot lifting action of the presser foot lifting linkage device (80) in a back-and-forth rotating mode, and the motor (10) is installed on the machine body (20) of the sewing machine.

2. The multifunctional driving device of sewing machine according to claim 1, characterized in that the output shaft (13) controls the installation of the backstitch linkage (70), the thread cutting linkage (90) and the presser foot lifting linkage (80) in one of the following ways:

a backstitch linkage device (70) is fixed on the output shaft (13);

a backstitch linkage device (70) is fixed on the output shaft (13), and a trimming linkage device (90) is fixed on the output shaft (13);

thirdly, a backstitch linkage device (70) is fixed on the output shaft (13), and a presser foot lifting linkage device (80) is fixed on the output shaft (13).

3. The multifunctional driving device of a sewing machine as claimed in claim 1, wherein the electromagnetic clutch (11) has a driven pulley (21) and a driving pulley (23) which are sleeved on the output shaft (13), the driving pulley (22) is sleeved on the driving pulley (23), and the driving pulley (23) is transmitted by the driving pulley (22) to rotate back and forth to the driven pulley (21).

4. A multifunctional driving device for a sewing machine according to claim 1, characterized in that the electromagnetic clutch (11) has a driving pulley (22) connected to the driven pulley (21), the electromagnetic clutch (11) engaging and disengaging controls a driving pulley (23), the driving pulley (23) being connected to the driving pulley (22) to perform a backstitch operation.

5. The multifunctional driving device of sewing machine according to claim 1, wherein the motor (10) is installed on the right side surface of the sewing machine body (20); /or the motor (10) is arranged on the rear side panel of the sewing machine body (20); or the motor (10) is arranged on the front side panel of the sewing machine body (20), and the electromagnetic clutch (11) is provided with a cover (15).

6. The multifunctional driving device of the sewing machine according to claim 1, wherein the output shaft (13) is fixed with a thread cutting crank (51), the thread cutting crank (51) is located inside a thread cutting fork wheel (52), the thread cutting fork wheel (52) is linked with a thread cutting connecting rod (53), and the thread cutting connecting rod (53) pushes a thread cutting end executing component to execute thread cutting action.

7. The multifunctional driving device for sewing machine according to claim 6, wherein the thread cutting fork wheel (52) is axially movably connected to the fixed shaft (12), the fixed shaft (12) is fixedly connected to the bracket (14), and the bracket (14) is fixed to the motor (10).

8. The multifunctional driving device of a sewing machine according to claim 1, characterized in that the output shaft (13) of the motor (10) is fixed with a presser foot lifting cam (61), the presser foot lifting cam (61) abuts against the presser foot lifting connecting rod (62) at different positions of the presser foot lifting cam at different times, and the presser foot lifting connecting rod (62) pushes a presser foot lifting end executing component of the presser foot lifting linkage device (80) to execute a presser foot lifting action.

9. The multifunctional driving device of sewing machine according to claim 1, wherein the driving device assembly integrates a motor (10), an electromagnetic clutch (11), a backstitch linkage (70), a thread trimming linkage (90) and a presser foot lifting linkage (80) into a whole to form a modular product.