CN208136466U - Thorn material feeding mechanism based on dual drive - Google Patents

Abstract

The utility model discloses a stabbing material feeding mechanism based on double drivers, which comprises a casing and a first driver and a second driver fixedly installed on the casing; The swing of the shaft drives the swing of the needle bar crank, which makes the needle bar assembly connected with the needle bar crank reciprocate up and down; the output shaft of the second driver is equipped with a differential crank and a feeding crank, and the swing of the output shaft of the second driver drives the differential The swinging of the crank and the feeding crank respectively drives the differential tooth frame connected with the differential crank and the cloth feeding tooth frame connected with the feeding crank to move back and forth. The utility model changes the stroke of the stabbing material and the size of the cloth feeding needle distance through the change of the swing amount of the first driver and the second driver. Through the cooperation of the two, the equipment transmission mechanism is greatly simplified, and the thickness of the cloth is adapted. Stronger.

Description

Brick Feeding Mechanism Based on Dual Drivers

technical field

The utility model relates to a stab material feeding mechanism based on double drivers, which belongs to the technical field of sewing machines.

Background technique

With the development of the times, garment enterprises have higher and higher requirements for sewing equipment, especially to improve the adaptability of sewing materials. Among them, such as overlock sewing machine, the traditional overlock sewing machine adopts the eccentric drive of the main shaft, through the connecting rod and crank The function of stabbing material is realized; the feeding shaft is driven by the complex connecting rod crank, and the complex needle pitch component controls the swing of the feeding shaft to realize the feeding action and change the size of the needle pitch. This thorn material feeding mechanism has many defects such as complicated structure, inconvenient installation and maintenance, and weak adaptability to cloth thickness.

Contents of the invention

The purpose of the utility model is to solve the technical problems of complex structure, inconvenient installation and maintenance, and weak adaptability to the thickness of the current thorn material feeding mechanism.

In order to achieve the above purpose of the utility model, the utility model provides a stab material feeding mechanism based on double drivers, including a casing and a first driver and a second driver fixedly installed on the casing;

A needle bar crank is installed on the output shaft of the first driver, and the swing of the output shaft drives the needle bar crank to swing, so that the needle bar assembly connected with the needle bar crank reciprocates up and down;

A differential crank and a feed crank are installed on the output shaft of the second driver, and the swing of the output shaft of the second driver drives the swing of the differential crank and the feed crank, thereby respectively driving the differential teeth connected to the differential crank. The frame and the feed dog frame connected with the feed crank move back and forth.

Further, the first driver and the second driver are rotary and reciprocating devices, including but not limited to motors and electromagnets.

Further, the needle bar crank is mounted on the output shaft of the first driver directly or through a coupling.

Further, the differential crank and the feed crank are mounted on the output shaft of the second driver directly or through a coupling.

Further, the differential crank is connected to the differential tooth frame through a first axial screw;

The cloth feed crank is connected with the cloth feed dog frame through the second axial screw.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model changes the stroke of the stabbing material and the size of the cloth feeding needle distance through the change of the swing amount of the first driver and the second driver, and greatly simplifies the transmission mechanism of the equipment through the cooperation of the two, and adapts to the thickness of the cloth. Stronger.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the utility model one (excluding the casing);

Fig. 2 is a structural schematic diagram II of the utility model (excluding the casing);

Fig. 3 is a structural schematic diagram three of the utility model (excluding the casing);

Fig. 4 is the structural representation of stabbing material mechanism;

Fig. 5 is the structural representation of feeding mechanism;

Figure 6 is a schematic structural view of the utility model (including the casing).

In the figure, first driver 1; needle bar crank 2; needle bar assembly 3; second driver 4; differential crank 5;

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Figures 1-6, the needle bar crank 2 is fixedly installed on the output shaft of the first driver 1, and the other end of the needle bar crank 2 passes through the pin and the needle bar in the stab material feeding mechanism based on double drivers of the present invention. The assembly 3 is connected, and the first driver 1 drives the needle bar crank 2 to swing through the swing of the output shaft, so that the needle bar assembly 3 reciprocates up and down to realize the stabbing action. By changing the swing angle of the output shaft of the first driver 1, it can Change the stroke of the needle bar assembly 3 up and down to make it more adaptable to the thickness of the sewing material; the output shaft of the second driver 4 is fixedly installed with a differential crank 5 and a feed crank 8, and a differential crank 5 and a feed crank 8 They are respectively connected to the differential rack 6 and the feed rack 7 through axial screws, and the swing of the output shaft of the second driver 4 drives the differential crank 5 and the feed crank 8 to swing, so that the differential rack 6 and the feed rack 7 Back and forth reciprocating movement, by changing the swing angle of the output shaft of the second driver 4, the forward and backward movement of the differential tooth frame 6 and the cloth feeding tooth frame 7 can be changed, thereby realizing the change of the needle pitch.

Through the change of the swinging amount of the first driver 1 and the second driver 4, the stroke of the punching material and the size of the needle pitch of the cloth feeding can be changed. Through the cooperation of the two, the transmission mechanism of the equipment is greatly simplified, and the adaptability to the thickness of the cloth stronger.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (5)

1. A double-driver-based stab material feeding mechanism, characterized in that it includes a casing (100) and a first driver (1) and a second driver (4) fixedly installed on the casing (100); A needle bar crank (2) is installed on the output shaft of the first driver (1), and the swing of the output shaft drives the needle bar crank (2) to swing, so that the needle bar assembly connected to the needle bar crank (2) (3) Up and down reciprocating motion; A differential crank (5) and a feed crank (8) are installed on the output shaft of the second drive (4), and the differential crank (5) and feed crank are driven by the swing of the output shaft of the second drive (4) (8) swings, thereby respectively driving the differential tooth frame (6) connected with the differential crank (5) and the cloth feeding tooth frame (7) connected with the feed crank (8) to move back and forth. 2. The double-driver-based stab material feeding mechanism according to claim 1, characterized in that, the first drive (1) and the second drive (4) are rotary and reciprocating devices, including but not limited to motors and electromagnet. 3. The double-driver-based stab material feeding mechanism according to claim 1, characterized in that, the needle bar crank (2) is mounted on the output shaft of the first driver (1) directly or through a coupling. 4. The stab material feeding mechanism based on dual drivers according to claim 1, characterized in that, the differential crank (5) and the feeding crank (8) are mounted on the second driver ( 4) on the output shaft. 5. The stab material feeding mechanism based on dual drivers according to claim 1, characterized in that, the differential crank (5) is connected to the differential tooth frame (6) through a first axial screw; The feed crank (8) is connected to the feed dog frame (7) through a second axial screw.