CN216919640U

CN216919640U - Presser foot lifting mechanism of ejector rod of sewing machine

Info

Publication number: CN216919640U
Application number: CN202220623097.1U
Authority: CN
Inventors: 戴其均; 周相建
Original assignee: Zhejiang Maqi Sewing Machine Co Ltd
Current assignee: Zhejiang Maqi Sewing Machine Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-08
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a push rod presser foot lifting mechanism of a sewing machine, which comprises: the motor, the motor wears to establish on the casing, and installs the cam on the output shaft of motor, and the ejector pin passes through roller, gasket and nut and is connected with the swinging arms simultaneously, and the crank fixing base is fixed on the casing, and the ejector pin crank passes through pull rod axle position screw and nut and installs on the crank fixing base, and the ejector pin guide holder is installed on the casing, and the ejector pin wears to establish on the ejector pin guide holder, and the roller of ejector pin one end is spacing through the nut simultaneously. According to the push rod presser foot lifting mechanism of the sewing machine, when the push rod pushes up and down, the rollers slide in the long row grooves of the oscillating rod to enable the oscillating rod to rotate left and right, the pull rod is pulled, and the pull rod drives the presser foot lifting assembly to achieve the function of presser foot lifting; through automatically controlled, the presser foot is lifted in the cooperation of control motor, has the laborsaving, the motor energy consumption of mechanical work is low, simple to operate's advantage.

Description

Presser foot lifting mechanism of ejector rod of sewing machine

Technical Field

The utility model relates to the field of sewing machines, in particular to a push rod presser foot lifting mechanism of a sewing machine.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material and enables one or more layers of the sewing material to be interwoven or sewed; the general sewing machine consists of a machine head, a table plate, a transmission and an accessory; the direct-drive sewing machine has the advantages that the transmission part is provided with the direct-drive motor, the motor enables power to be transmitted to the main shaft without loss, and the direct-drive sewing machine is low in power consumption, good in energy-saving effect, low in vibration and silent; the applicant researches the structure of the sewing machine, and how to achieve the purposes of labor saving in work, low energy consumption of the motor and convenience in installation when the sewing machine works has important significance.

Disclosure of Invention

The utility model aims to provide a push rod presser foot lifting mechanism of a sewing machine, which aims to solve the defects in the prior art.

In order to realize the above-mentioned purpose, provide a presser foot mechanism is lifted to sewing machine's ejector pin, include:

the motor is arranged on the machine shell in a penetrating mode, a cam is arranged on an output shaft of the motor, meanwhile, the ejector rod is connected with the oscillating rod through a roller, a gasket and a nut, the crank fixing seat is fixed on the machine shell, the ejector rod crank is arranged on the crank fixing seat through a pull rod shaft position screw and a nut, the ejector rod guide seat is arranged on the machine shell, the ejector rod is arranged on the ejector rod guide seat in a penetrating mode, meanwhile, the roller at one end of the ejector rod is limited through the nut, the roller at the other end of the ejector rod is arranged on the oscillating rod in a penetrating mode and limited through the gasket and the nut, two groups of screws are arranged on the ejector rod guide seat, and a roller shaft assembly is arranged on the left side of the cam;

and the bottom of the pressure foot lifting component is provided with a pressure foot, one end of the pressure foot lifting component, which is far away from the pressure foot, is connected with the triangular transmission sheet, and the triangular transmission sheet is movably connected with the machine shell through a front lever threaded pin and a clamp spring.

Preferably, one end of the swing rod is provided with a long row groove, the other end of the swing rod is fixed with the pull rod, the other end of the pull rod is provided with a pressure foot lifting assembly, and the pressure foot lifting assembly is arranged on the machine shell through a front lever threaded pin.

Preferably, the swinging rod and the ejector rod are integrally arranged in a stepped manner.

Preferably, the swinging rod is an L-shaped structure made of metal materials, and the top rod drives the pull rod through the swinging rod.

Preferably, the ejector rod guide seat is of an L-shaped structure made of metal materials, a U-shaped groove is formed in the end of the ejector rod guide seat, and the ejector rod guide seat and the ejector rod are installed together.

Preferably, the swing rod is provided with a swing rod axis position screw, and the upper end of the swing rod is connected with the pull rod through a pull rod axis position screw.

Compared with the prior art, the utility model has the beneficial effects that: when the ejector rod pushes up and down, the roller slides in the long row groove of the oscillating rod to enable the roller to rotate left and right, and the pull rod is pulled to drive the presser foot lifting assembly, so that the function of lifting the presser foot is realized; through automatically controlled, the presser foot is lifted in the cooperation of control motor, has the laborsaving, the motor energy consumption of mechanical work is low, simple to operate's advantage.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic view of the driving structure of the presser foot lifting assembly of the present invention;

FIG. 3 is an exploded view of FIG. 2 of the present invention;

FIG. 4 is a schematic view of the ejector guide seat of the present invention.

Reference numbers in the figures: 1. a housing; 2. a motor; 3. a swing lever; 4. a pull rod; 5. a pull rod shaft position screw; 6. a sway bar axis position screw; 7. a top rod; 8. a roller; 9. a gasket; 10. a nut; 11. a mandril guide seat; 12. a screw; 13. a mandril crank; 14. a crank fixing seat; 15. a cam; 16. a roller shaft assembly; 17. lifting the presser foot assembly; 18. a front lever threaded pin; 19. and a clamp spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a presser foot lifting mechanism for a push rod of a sewing machine, comprising: the motor 2 and the presser foot lifting assembly 17;

the motor 2 penetrates through the machine shell 1, a cam 15 is installed on an output shaft of the motor 2, meanwhile, the ejector rod 7 is connected with the oscillating rod 3 through a roller 8, a gasket 9 and a nut 10, the crank fixing seat 14 is fixed on the machine shell 1, the ejector rod crank 13 is installed on the crank fixing seat 14 through a pull rod shaft position screw 5 and the nut 10, the ejector rod guide seat 11 is installed on the machine shell 1, the ejector rod 7 penetrates through the ejector rod guide seat 11, meanwhile, the roller 8 at one end of the ejector rod 7 is limited through the nut 10, the roller 8 at the other end of the ejector rod 7 penetrates through the oscillating rod 3 and is limited through the gasket 9 and the nut 10, two groups of screws 12 are installed on the ejector rod guide seat 11, and a roller shaft assembly 16 is installed on the left side of the cam 15;

the bottom of the presser foot lifting assembly 17 is provided with a presser foot, one end of the presser foot lifting assembly 17 far away from the presser foot is connected with a triangular driving sheet, and the triangular driving sheet is movably connected with the machine shell 1 through a front lever threaded pin 18 and a clamp spring 19.

When the ejector rod 7 pushes up and down, the roller 8 slides in the long row groove of the oscillating rod 3, so that the oscillating rod rotates left and right, the pull rod 4 is pulled, and the pull rod 4 drives the presser foot lifting assembly 17 to realize the function of lifting the presser foot; through automatically controlled, the presser foot is lifted in the cooperation of control motor 2, has the laborsaving, the motor energy consumption of mechanical work is low, simple to operate's advantage.

In a preferred embodiment, one end of the swing rod 3 is provided with a long row of grooves, the other end of the swing rod 3 is fixed with the pull rod 4, the other end of the pull rod 4 is provided with a pressure raising and pressing foot assembly 17, and the pressure raising and pressing foot assembly 17 is arranged on the machine shell 1 through a front lever threaded pin 18.

As shown in fig. 1-3: one end of the oscillating rod 3 is provided with a long row groove, the roller 8 slides in the long row groove, force is transmitted to the pull rod 4 through the oscillating rod 3, and the pull rod 4 drives the presser foot lifting assembly 17 to lift the presser foot assembly 17.

In a preferred embodiment, the swing rod 3 and the top rod 7 are integrally provided in a stepped shape.

The swing rod 3 and the ejector rod 7 are integrally arranged in a stepped manner, and the swing rod 3 and the ejector rod 7 are combined together to form a driving transmission structure of the pull rod 4.

In a preferred embodiment, the swing lever 3 is an "L" shaped structure made of metal, and the top rod 7 drives the pull rod 4 through the swing lever 3.

As shown in fig. 2-3: the push rod 7 is driven under the action of a push rod crank 13 and a cam 15, the push rod 7 drives the pull rod 4 through the swing rod 3, and finally the pull rod 4 transmits force to the presser foot lifting assembly 17 to drive the presser foot lifting assembly 17 to carry out lifting operation.

In a preferred embodiment, the ejector guide seat 11 is an "L" shaped structure made of metal, and a "U" shaped groove is installed at the end of the ejector guide seat 11, and the ejector guide seat 11 and the ejector 7 are installed together.

In a preferred embodiment, a swing lever shaft position screw 6 is mounted on the swing lever 3, and the upper end of the swing lever 3 is connected to the pull rod 4 by a pull rod shaft position screw 5.

The drive work of the presser foot lifting assembly 17 is realized through a group of motors 2 and a series of transmission structures, the presser foot lifting is realized through electric control and the cooperation of the control motors 2, and the presser foot lifting device has the advantages of labor saving in mechanical work, low motor energy consumption and convenience in installation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a presser foot mechanism is lifted to sewing machine's ejector pin which characterized in that includes:

the motor (2), the motor (2) is arranged on the machine shell (1) in a penetrating mode, a cam (15) is installed on an output shaft of the motor (2), meanwhile, the ejector rod (7) is connected with the oscillating rod (3) through a roller (8), a gasket (9) and a nut (10), a crank fixing seat (14) is fixed on the machine shell (1), an ejector rod crank (13) is installed on the crank fixing seat (14) through a pull rod axis position screw (5) and the nut (10), an ejector rod guide seat (11) is installed on the machine shell (1), the ejector rod (7) is arranged on the ejector rod guide seat (11) in a penetrating mode, meanwhile, the roller (8) at one end of the ejector rod (7) is limited through the nut (10), the roller (8) at the other end of the ejector rod (7) is arranged on the oscillating rod (3) in a penetrating mode and limited through the gasket (9) and the nut (10), and two groups of screws (12) are installed on the ejector rod guide seat (11), a roller shaft assembly (16) is arranged on the left side of the cam (15);

the pressure foot lifting assembly (17), the pressure foot is installed at the bottom of the pressure foot lifting assembly (17), one end, far away from the pressure foot, of the pressure foot lifting assembly (17) is connected with the triangular transmission piece, and meanwhile the triangular transmission piece is movably connected with the machine shell (1) through a front lever threaded pin (18) and a clamp spring (19).

2. The presser foot lifting mechanism of sewing machine according to claim 1, characterized in that: one end of the swing rod (3) is provided with a long row of grooves, the other end of the swing rod (3) is fixed with the pull rod (4), meanwhile, the other end of the pull rod (4) is provided with a pressure foot lifting assembly (17), and the pressure foot lifting assembly (17) is arranged on the machine shell (1) through a front lever threaded pin (18).

3. The presser foot lifting mechanism of sewing machine according to claim 1, characterized in that: the swinging rod (3) and the ejector rod (7) are integrally arranged in a stepped manner.

4. The presser foot lifting mechanism of sewing machine according to claim 1, characterized in that: the swinging rod (3) is of an L-shaped structure made of metal materials, and the ejector rod (7) drives the pull rod (4) through the swinging rod (3).

5. The presser foot lifting mechanism of sewing machine according to claim 1, characterized in that: the ejector rod guide seat (11) is of an L-shaped structure made of metal materials, a U-shaped groove is formed in the end portion of the ejector rod guide seat (11), and meanwhile the ejector rod guide seat (11) and the ejector rod (7) are installed together.

6. The presser foot lifting mechanism of sewing machine according to claim 1, characterized in that: and a swing rod axis position screw (6) is installed on the swing rod (3), and the upper end of the swing rod (3) is connected with the pull rod (4) through a pull rod axis position screw (5).