阅读说明：本技术 一种电机剪“鸟巢”自控系统 (Motor scissors 'bird' nest automatic control system ) 是由 刘岩 于 2018-08-02 设计创作，主要内容包括：本发明公开了一种电机剪“鸟巢”自控系统,包括：步进电机、剪线机械机构、缝制针杆、剪刀、夹线气缸；其特征在于：所述的步进电机与剪线机械机构相联接,通过电路板卡发出信号指令,驱动器使电机开始转动,当达到夹线位置、剪线位置、原点位置时,电机停止运动；所述的剪线机械机构为连杆结构,所述的缝制针杆安装在机头的最下端,所述的剪刀安装在平面针板的内侧,且与平面针板贴合,目的是剪线过程中避免出现多余的底线；所述的夹线气缸安装于机头的侧面,控制缝制过程中的夹线；该装置通过步进电机的控制剪线装置从而达到剪掉多余底线,可使缝制的布料美观,节约工人成本。(The invention discloses a bird nest automatic control system of a motor shear, comprising: a stepping motor, a thread cutting mechanical mechanism, a sewing needle rod, scissors and a thread clamping cylinder; the method is characterized in that: the stepping motor is connected with the thread cutting mechanical mechanism, a signal instruction is sent out through the circuit board card, the driver enables the motor to start to rotate, and when the thread clamping position, the thread cutting position and the original point position are reached, the motor stops moving; the thread cutting mechanical mechanism is of a connecting rod structure, the sewing needle rod is arranged at the lowest end of the machine head, the scissors are arranged on the inner side of the plane needle plate and attached to the plane needle plate, and the purpose is to avoid redundant bottom threads in the thread cutting process; the thread clamping cylinder is arranged on the side surface of the machine head and used for controlling thread clamping in the sewing process; the device cuts off redundant bottom lines by controlling the line cutting device through the stepping motor, so that the sewn cloth is attractive, and the cost of workers is saved.)

1. A bird nest self-control system of a motor shear comprises: a stepping motor, a thread cutting mechanical mechanism, a sewing needle rod, scissors and a thread clamping cylinder; the method is characterized in that: the stepping motor is connected with the thread cutting mechanical mechanism; the thread cutting mechanical mechanism is of a connecting rod structure, the sewing needle rod is arranged at the lowest end of the machine head, the scissors are arranged on the inner side of the plane needle plate and attached to the plane needle plate, and the purpose is to avoid redundant bottom threads in the thread cutting process; the wire clamping cylinder is arranged on the side surface of the machine head.

2. The bird nest self-control system of claim 1, wherein: the stepping motor sends a signal instruction through the circuit board card, the driver enables the motor to start rotating, and when the wire clamping position, the wire shearing position and the original point position are reached, the motor stops moving.

3. The bird nest self-control system of claim 1, wherein: the mechanical linkage mechanism achieves the wire clamping and shearing actions of the linkage mechanism through the rotation of the motor.

Technical Field

The invention relates to the technical field of sewing machines, in particular to a bird nest automatic control system of a motor shear.

Background

The current clothing industry has the following phenomena: when the machine is used for sewing down clothes, a redundant bottom thread is produced from the beginning, namely a thread coil similar to a bird nest shape appears at the bottom of the fabric. The bird nest is formed mainly because the surplus thread ends of the upper threads are irregularly sewn on the cloth due to the fact that the needle raising upper threads are too long (the needle raising upper threads cannot form thread sleeves with the bottom threads when being short, and therefore the sewing requirements cannot be met), and the bird nest can be formed no matter a household flat sewing machine or an industrial large-scale automatic template machine.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a bird nest self-control system of a motor shear, which is mainly used for hooking, clamping and shearing by controlling the step number of a stepping motor.

The technical scheme adopted by the invention is as follows: a bird nest self-control system of a motor shear comprises: a stepping motor, a thread cutting mechanical mechanism, a sewing needle rod, scissors and a thread clamping cylinder; the stepping motor is connected with the thread cutting mechanical mechanism, a signal instruction is sent out through the circuit board card, the driver enables the motor to start to rotate, and when the thread clamping position, the thread cutting position and the original point position are reached, the motor stops moving; the thread cutting mechanical mechanism is of a connecting rod structure, the sewing needle rod is arranged at the lowest end of the machine head, the scissors are arranged on the inner side of the plane needle plate and attached to the plane needle plate, and the purpose is to avoid redundant bottom threads in the thread cutting process; the thread clamping cylinder is arranged on the side face of the machine head and used for controlling thread clamping in the sewing process.

Compared with the prior art, the invention has the beneficial effects that: a bird nest self-control system of a motor scissors cuts redundant bottom lines by controlling a thread cutting device of a stepping motor, so that sewn cloth is attractive, and the cost of workers is saved.

Drawings

FIG. 1 is a perspective view of a "bird's nest" device of a pair of motor scissors;

FIG. 2 is a front view of a "bird's nest" of motor shears as assembled on a complete machine;

fig. 3 is a 'bird nest' self-control schematic diagram of a motor shear.

1. The stepping motor 2, the thread trimming mechanical mechanism 3, the sewing needle rod 4, the scissors 5, the thread clamping cylinder 6 and the touch screen.

Detailed Description

The invention is further explained below with reference to the accompanying drawings, in which a "bird nest" automatic control system for a motor shear comprises: the sewing machine comprises a stepping motor (1), a thread cutting mechanical mechanism (2), a sewing needle rod (3), scissors (4), a thread clamping cylinder (5) and a touch screen (6); the sewing machine is characterized in that the stepping motor (1) is connected with the thread cutting mechanical mechanism (2), the thread cutting mechanical mechanism (2) is of a connecting rod structure, the sewing needle rod (3) is installed at the lowest end of the machine head, the scissors (4) are installed on the inner side of the plane needle plate and attached to the plane needle plate, and the thread clamping cylinder (5) is installed on the side face of the machine head.