CN217709897U

CN217709897U - Thread trimming driving mechanism for overedger

Info

Publication number: CN217709897U
Application number: CN202221188762.5U
Authority: CN
Inventors: 于金锁
Original assignee: Supreme Intelligent Technology Co Ltd
Current assignee: Supreme Intelligent Technology Co Ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-11-01
Anticipated expiration: 2032-05-18

Abstract

The utility model discloses a thread trimming driving mechanism for a overedger, which comprises a driving motor, wherein a first thread trimming swing arm is fixed on an output shaft of the driving motor; the overedger base is provided with a thread trimming rod, and the thread trimming rod is vertically arranged on the thread trimming bracket; the upper end of the thread trimming rod is fixedly provided with a thread trimming transmission block, a thread trimming roller is installed on the thread trimming transmission block through a pin shaft, and the thread trimming roller is matched with the top surface of the first thread trimming swing arm. The utility model discloses a trimming actuating mechanism, the first trimming swing arm of driving motor's the first trimming of output shaft, first trimming swing arm can drive the trimming pole and move upward and carry out the trimming action through the trimming gyro wheel cooperation on a curved surface and the trimming pole. The trimming driving block is connected with the second trimming swing arm through the trimming connecting rod. The trimming driving mechanism reduces noise during operation, optimizes the trimming transmission structure and reduces part cost.

Description

Thread trimming driving mechanism for overedger

Technical Field

The utility model relates to an overedger, specifically speaking are trimming actuating mechanism for overedger.

Background

Overedgers, also known as hemming machines, stacking machines, and bone machines, generally divide into three, four, and five lines. The primary function is generally to prevent the sewing of the garment from fuzzing. The overedger can be used for edge wrapping, and can also be used for sewing fabrics such as T-shirts, sportswear, underwear and knitting.

Most of the existing presser foot lifting mechanisms and thread trimming mechanisms of overedgers adopt independent electromagnets as power sources respectively, and thread trimming is not stable.

Disclosure of Invention

The utility model discloses to motor drive thread trimming drive shaft transmission structure is unreasonable when carrying out the thread trimming action, the technical problem that the operation is noisy, and provide a thread trimming actuating mechanism for overedger, optimize the transmission structure between motor output shaft and the thread trimming drive shaft, reduce the running noise.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a trimming driving mechanism for a overedger comprises a driving motor, wherein a first trimming swing arm is fixed on an output shaft of the driving motor; the overedger base is provided with a thread trimming rod which is vertically arranged on the thread trimming bracket; the upper end of the thread trimming rod is fixed with a thread trimming transmission block, a thread trimming roller is installed on the thread trimming transmission block through a pin shaft, and the thread trimming roller is matched with the top surface of the first thread trimming swing arm.

For optimizing above-mentioned technical scheme, the utility model discloses still include following modified technical scheme.

A thread cutting driving block is fixed at the lower end of the thread cutting rod and provided with a connecting part; the connecting part is movably connected with the trimming driving shaft through the trimming connecting rod.

The thread trimming support is provided with two lug parts, and the thread trimming rod is slidably arranged in the through holes of the lug parts.

The thread trimming rod is sleeved with a thread trimming return spring; one end of the trimming reset spring is matched with the lug part, and the other end of the trimming reset spring is matched with the trimming driving block.

The trimming driving block is provided with a guide hole, a guide rod is fixedly arranged in the guide hole, and the guide rod is slidably arranged on the trimming support.

Compared with the prior art, the utility model discloses a trimming actuating mechanism, the first trimming swing arm of driving motor's output shaft, first trimming swing arm can drive the trimming pole upward movement through the trimming gyro wheel cooperation on a curved surface and the trimming pole and carry out the trimming action. The trimming driving block is connected with the second trimming swing arm through the trimming connecting rod. The output shaft of the driving motor extends out of two ends, and can respectively drive the trimming and the presser foot lifting to work, thereby optimizing the trimming transmission structure and reducing the noise during operation.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic perspective view of the thread trimming and presser foot lifting driving device in fig. 1.

Fig. 3 is a schematic perspective view of fig. 2 from another angle.

Fig. 4 is an assembled exploded view of fig. 2.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 4 are schematic structural views of the present invention.

Wherein the reference numerals are: the overlock machine comprises a overedging machine base 1, a driving motor 2, an output shaft 3, a first trimming swing arm 4, a trimming roller 5, a trimming driving block 6, a trimming reset spring 7, a trimming driving block 8, a connecting part 8a, a trimming connecting rod 9, a second trimming swing arm 10, a trimming driving shaft 11, a trimming rod 12, a trimming support 13, a guide hole 14, a guide rod 15, a presser foot swing arm 16, a presser foot roller 17, a presser foot driving rod 18, a presser foot rod sleeve 19, a connecting shaft fork 20, a presser foot driving plate 21, a lifting hook 22, a presser foot connecting rod 23, a presser foot reset spring 24, a presser foot shaft 25, a presser foot shaft sleeve 26 and a presser foot arm 27.

The utility model discloses a hemming machine, including locating trimming drive shaft 11 and presser foot arm 27 on hemming machine frame 1. A driving motor 2 is fixedly installed on the overedger base 1, and an output shaft 3 of the driving motor 2 extends out towards two ends. One end of the output shaft 3 is connected with a first trimming swing arm 4, and the first trimming swing arm 4 is connected with a trimming driving shaft 11 through a trimming transmission assembly. The other end of the output shaft 3 is provided with a presser foot swing arm 16, and the presser foot swing arm 16 is connected with a presser foot arm 27 through a presser foot lifting transmission assembly.

The driving motor 2 can respectively control the thread cutting driving shaft 11 and the presser foot arm 27 to work by controlling the rotating direction of the output shaft 3, and realizes that one power source is used for driving thread cutting and presser foot lifting.

The trimming transmission assembly comprises a vertically arranged trimming rod 12, a trimming transmission block 6 is fixed at the upper end of the trimming rod 12, and a trimming roller 5 matched with the first trimming swing arm 4 is arranged on the trimming transmission block 6. The thread trimming roller 5 and the first thread trimming swing arm 4 adopt a movable connection mode. When the presser foot is lifted for work, the thread trimming roller 5 is positioned above the first thread trimming swing arm 4, and the thread trimming roller 5 can be separated from the thread trimming rod 12, so that the interference of thread trimming work when the presser foot is lifted for work is avoided.

The trimming rod 12 is arranged on the trimming bracket 13 in an axial sliding manner, and the trimming reset spring 7 is sleeved on the trimming rod 12, so that the trimming drive shaft 11 is reset conveniently.

The trimming driving block 8 is provided with a connecting part 8a, and the connecting part 8a is rotatably connected with the trimming connecting rod 9 through an axial bolt. The other end of the thread cutting connecting rod 9 is rotatably connected with the free end of a second thread cutting swing arm 10, and a thread cutting driving shaft 11 is fixedly installed on one side of the second thread cutting swing arm 10. The trimming driving block 8 is in transmission connection with the second trimming swing arm 10 through the trimming connecting rod 9, and friction noise between the trimming driving block 8 and the second trimming swing arm 10 is eliminated.

The trimming driving block 8 is provided with a guide hole 14, a guide rod 15 is arranged in the guide hole 14, and the guide rod 15 can be slidably arranged on the trimming bracket 13. The guide rod 15 guides the trimming drive block 8 to slide on the trimming bracket 13.

The presser foot drive assembly comprises a presser foot drive rod 18 slidably mounted within a presser foot rod sleeve 19, and a presser foot roller 17 is mounted at the upper end of the presser foot drive rod 18. The presser foot swing arm 16 is provided with an arc cam surface which is matched with the presser foot roller 17. The presser foot swing arm 16 is movably connected with a presser foot roller 17 on the presser foot transmission rod 18. When the presser foot is lifted for work, the arc cam surface can be attached to the presser foot roller 17 to apply pressure along with the rotation of the presser foot swing arm 16, so that the hitting sound between the presser foot swing arm 16 and the presser foot transmission rod 18 is eliminated, and the running noise is reduced.

The lower end of the presser foot drive link 18 has a link yoke 20 and a presser foot drive plate 21 is mounted in a recess in the link yoke 20. The connecting shaft fork 20 is movably connected with the presser foot driving plate 21, so that interference in the work of lifting the presser foot is avoided during the thread trimming work.

The presser foot drive plate 21 is connected with the lower end of the hook 22, the upper end of the hook 22 is hooked on the presser foot connecting rod 23, and the other end of the presser foot connecting rod 23 is fixedly connected with the presser foot shaft sleeve 26. The middle part of the pressure foot shaft sleeve 26 is fixed with a pressure foot shaft 25, and one end of the pressure foot shaft 25 is fixedly connected with a pressure foot arm 27. The presser foot drive plate 21 moves up and down, and the hook 22 drives the presser foot connecting rod 23 to rotate, so that the presser foot arm 27 is driven to move to lift the presser foot.

The presser foot shaft sleeve 26 is sleeved with a presser foot reset spring 24, one end of the presser foot reset spring 24 is hooked on the presser foot connecting rod 23, and the other end is hooked on the overedger base 1, so that the presser foot arm 27 can be reset conveniently.

When the driving motor 2 rotates along one direction, the trimming driving shaft 11 is driven to rotate through the trimming assembly to perform trimming work; when the driving motor 2 rotates along the other direction, the pressure foot lifting assembly drives the pressure foot arm 27 to move, and the pressure foot lifting work is carried out.

While the preferred embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the scope of the invention.

Claims

1. The utility model provides a trimming actuating mechanism for overedger, includes driving motor (2), characterized by: a first trimming swing arm (4) is fixed on an output shaft (3) of the driving motor (2); the overedger base (1) is provided with a thread trimming rod (12), and the thread trimming rod (12) is vertically arranged on a thread trimming bracket (13); the upper end of the thread trimming rod (12) is fixed with a thread trimming transmission block (6), the thread trimming transmission block (6) is provided with a thread trimming roller (5) through a pin shaft, and the thread trimming roller (5) is matched with the top surface of the first thread trimming swing arm (4).

2. The thread trimming drive mechanism of claim 1, wherein: a trimming driving block (8) is fixed at the lower end of the trimming rod (12), and the trimming driving block (8) is provided with a connecting part (8 a); the connecting part (8 a) is movably connected with the thread trimming driving shaft (11) through a thread trimming connecting rod (9).

3. The thread trimming drive mechanism as claimed in claim 2, wherein: the trimming support (13) is provided with two lug parts, and the trimming rod (12) is slidably arranged in the through holes of the lug parts.

4. A thread trimming drive mechanism according to claim 3, wherein: the trimming rod (12) is sleeved with a trimming return spring (7); one end of the trimming reset spring (7) is matched with the lug part, and the other end of the trimming reset spring is matched with the trimming driving block (8).

5. The thread trimming drive mechanism of claim 4, wherein: the trimming driving block (8) is provided with a guide hole (14), a guide rod (15) is fixedly arranged in the guide hole (14), and the guide rod (15) is slidably arranged on the trimming support (13).