CN219032565U

CN219032565U - Thread cutting and presser foot lifting driving mechanism of overedger

Info

Publication number: CN219032565U
Application number: CN202223155384.3U
Authority: CN
Inventors: 胡义斌
Original assignee: Zhejiang Lejiang Machine Co ltd
Current assignee: Zhejiang Lejiang Machine Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-16
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a thread cutting and presser foot lifting driving mechanism of an overedger, which comprises a motor fixed on one side of a shell of the overedger, a driving wheel sleeved on an output shaft of the motor, a first transmission mechanism linked with a thread cutting shaft, a second transmission mechanism linked with a presser foot lifting shaft, wherein the driving wheel is respectively provided with a first driving surface capable of driving the first transmission mechanism, a second driving surface capable of driving the second transmission mechanism and an idle stroke surface concentrically arranged with the output shaft of the motor, the first driving surface is a plane, and an elastic piece is arranged between the first transmission mechanism and the shell, so that the driving structure is simplified, and the thread cutting shaft can react more timely.

Description

Thread cutting and presser foot lifting driving mechanism of overedger

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a driving mechanism for trimming and lifting presser feet of an overedger.

Background

Overedger is also called edge beating machine, edge stacking machine, and bone car, and is generally divided into three lines, four lines, and five lines. The primary function is generally to prevent the stitch ends of the garment from fuzzing. The traditional overedger is characterized in that the traditional overedger is provided with two independently arranged electromagnets for respectively driving the thread cutting shaft and the presser foot lifting shaft, so that the structure is heavy and high in cost, the traditional overedger thread cutting and presser foot lifting driving mechanism is provided with driving wheels on the output shaft of the motor, the thread cutting shaft and the presser foot lifting shaft can be driven by different driving surfaces arranged on the surfaces of the driving wheels, namely, the thread cutting shaft and the presser foot lifting shaft can be respectively controlled by adopting one motor, the structure is simpler, but the driving mechanism is still complex in structure, and the problem of untimely reaction of the driving thread cutting shaft is solved.

Disclosure of Invention

In order to solve the problems, the utility model provides a driving mechanism for trimming and lifting a presser foot of an overedger.

The utility model provides a hemming machine cuts line and lifts presser foot actuating mechanism, includes the motor that is fixed in hemming machine casing one side, the cover locates the epaxial drive wheel of motor output, with the first drive mechanism of cutting spool linkage, with lift presser foot axle linkage's second drive mechanism, be equipped with respectively on the drive wheel and drive first drive face of first drive mechanism, can drive the second drive face of second drive mechanism to and with the concentric idle running surface that sets up of the output shaft of motor, first drive face is the plane, be equipped with the elastic component between first drive mechanism and the casing.

The elastic piece is a tension spring, hooks are arranged at two ends of the tension spring, one end of the tension spring is hung on the shell, and the other end of the tension spring is hung on the first transmission mechanism.

The first transmission mechanism comprises a wire cutting arm, a connecting rod and a wire cutting shaft connecting seat, a first protruding portion in linkage fit with the driving wheel is arranged at the upper end of the wire cutting arm, the lower end of the wire cutting arm is rotationally connected with the connecting rod, and the lower end of the connecting rod is connected with the rear end of the wire cutting shaft through the wire cutting shaft connecting seat.

The first boss is cylindrical.

The motor is fixed on the overedger shell through a motor bracket, and the top end of the thread cutting arm is hinged on the motor bracket.

The second transmission mechanism comprises a presser foot lifting arm, the presser foot lifting arm is sleeved on a presser foot lifting shaft, and the upper end of the presser foot lifting arm is provided with a second protruding portion in linkage fit with the driving wheel.

The second boss is cylindrical.

The second driving surface is a convex curved surface.

The idle stroke surface is semicircular, the first driving surface and the second driving surface are respectively arranged on two sides of the idle stroke surface, and the idle stroke surface, the first driving surface and the second driving surface form a complete outer edge of the driving wheel.

The utility model has the beneficial effects that: according to the utility model, the driving wheel structure is optimized, the driving structure is simplified, and the elastic piece is arranged between the first transmission mechanism and the machine shell, so that the reaction of the shear spool is more timely.

Drawings

Fig. 1 is a perspective view of a hemming machine according to an embodiment of the present utility model.

Fig. 2 is a perspective view of an embodiment of the present utility model.

Fig. 3 is a perspective view showing a structure of a driving scissor wire shaft according to an embodiment of the utility model.

Fig. 4 is a perspective view of a foot lifting shaft driven by an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a driving wheel according to an embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are further described below with reference to the accompanying drawings.

As shown in the figure, the driving mechanism for trimming and lifting the presser foot of the overedger comprises a motor 2 fixed on one side of a shell 1 of the overedger, a driving wheel 4 sleeved on an output shaft of the motor 2, a first transmission mechanism linked with the trimming shaft 6, a second transmission mechanism linked with the presser foot lifting shaft 5, a first driving surface 41 capable of driving the first transmission mechanism, a second driving surface 42 capable of driving the second transmission mechanism and an idle stroke surface 43 concentrically arranged with the output shaft of the motor 2, wherein the first driving surface 41 is a plane, an elastic piece 7 is arranged between the first transmission mechanism and the shell 1, in the embodiment, the elastic piece 7 is a tension spring, hooks are arranged at two ends of the tension spring, one end of the tension spring is hung on the shell 1, the other end of the tension spring is hung on the first transmission mechanism, the tension spring provides elasticity, and the first driving surface 41 is in a plane shape, so that the trimming shaft can react more timely.

In this embodiment, first drive mechanism includes cuts line arm 8, connecting rod 9, cuts spool connecting seat 10, motor 2 is fixed in overedger casing 1 through motor support 3, cut line arm top 81 articulates in motor support 3, cut line arm 8 upper end be equipped with drive wheel 4 linkage complex first bellying 82, cut line arm 8 lower extreme and connecting rod 9 rotate and be connected, connecting rod 9 lower extreme passes through cut spool connecting seat 10 and cuts spool 6 rear end and links to each other, cuts spool 6 front end and is equipped with cutter 61, first bellying 82 is preferably cylindrical, and the drive is smoother.

In this embodiment, the second transmission mechanism includes a presser foot lifting arm 11, the presser foot lifting arm 11 is sleeved on the presser foot lifting shaft 5, a second protruding portion 12 in linkage fit with the driving wheel 4 is disposed at the upper end of the presser foot lifting arm 11, and the second protruding portion 12 is preferably cylindrical and has smoother driving.

In this embodiment, the second driving surface 42 is a convex curved surface, the idle running surface 43 is a semicircle, the first driving surface 41 and the second driving surface 42 are respectively disposed on two sides of the idle running surface 43, and the idle running surface 43, the first driving surface 41 and the second driving surface 42 form a complete outer edge of the driving wheel. The driving wheel 4 rotates clockwise, the second driving surface 42 presses against the second protruding part 12 to lift the presser foot, and the first protruding part 82 contacts with the idle stroke surface 43 and keeps still; the driving wheel 4 rotates anticlockwise, the first driving surface 41 presses against the first protruding portion 82 to achieve thread cutting, and at this time, the second protruding portion 12 contacts with the idle running surface 43 and keeps still.

The examples should not be construed as limiting the utility model, and any non-inventive modifications based on the spirit of the utility model should be regarded as being within the scope of the utility model.

Claims

1. The utility model provides a hemming machine cuts line and lifts presser foot actuating mechanism, includes motor (2) that are fixed in hemming machine casing (1) one side, cover locates driving wheel (4) on the motor output shaft, with the first drive mechanism of cutting spool (6) linkage, with lift second drive mechanism of presser foot axle (5) linkage, be equipped with respectively on driving wheel (4) and drive first drive face (41) of first drive mechanism, can drive second drive face (42) of second drive mechanism to and with the concentric idle running surface (43) that set up of the output shaft of motor, its characterized in that: the first driving surface (41) is a plane, and an elastic piece (7) is arranged between the first transmission mechanism and the casing (1).

2. The overedger thread cutting and presser foot lifting drive mechanism of claim 1, wherein: the elastic piece (7) is a tension spring, hooks are arranged at two ends of the tension spring, one end of the tension spring is hung on the shell (1), and the other end of the tension spring is hung on the first transmission mechanism.

3. The overedger thread cutting and presser foot lifting drive mechanism of claim 1, wherein: the first transmission mechanism comprises a wire cutting arm (8), a connecting rod (9) and a wire cutting shaft connecting seat (10), a first protruding portion (82) in linkage fit with the driving wheel (4) is arranged at the upper end of the wire cutting arm (8), the lower end of the wire cutting arm (8) is rotationally connected with the connecting rod (9), and the lower end of the connecting rod (9) is connected with the rear end of the wire cutting shaft (6) through the wire cutting shaft connecting seat (10).

4. A hemming machine thread cutting and presser foot lifting drive mechanism according to claim 3 wherein: the first boss (82) is cylindrical.

5. A hemming machine thread cutting and presser foot lifting drive mechanism according to claim 3 wherein: the motor (2) is fixed on the overedger casing (1) through the motor bracket (3), and the top end of the thread cutting arm is hinged on the motor bracket (3).

6. The overedger thread cutting and presser foot lifting drive mechanism of claim 1, wherein: the second transmission mechanism comprises a presser foot lifting arm (11), the presser foot lifting arm (11) is sleeved on the presser foot lifting shaft (5), and a second protruding portion (12) in linkage fit with the driving wheel (4) is arranged at the upper end of the presser foot lifting arm (11).

7. The overedger thread trimming and presser foot lifting drive mechanism of claim 6, wherein: the second boss (12) is cylindrical.

8. The overedger thread cutting and presser foot lifting drive mechanism of claim 1, wherein: the second driving surface (42) is a convex curved surface.

9. The overedger thread cutting and presser foot lifting drive mechanism of claim 8, wherein: the idle stroke surface (43) is semicircular, the first driving surface (41) and the second driving surface (42) are respectively arranged on two sides of the idle stroke surface (43), and the idle stroke surface (43), the first driving surface (41) and the second driving surface (42) form the complete outer edge of the driving wheel (4).