Overvoltage and overcurrent protection system of sewing equipment

Abstract

The invention relates to an overvoltage and overcurrent protection system for sewing equipment, which includes a rectification circuit module, an inverter and power conversion circuit module, an overvoltage and overcurrent monitoring circuit module, and an alarm circuit module. The alarm circuit module includes a controller and is connected to the controller. The display screen used to set the current and voltage alarm parameters, the controller is connected to the alarm light, the current and voltage monitoring terminal of the controller is connected to the overvoltage and overcurrent monitoring circuit module, and when the current voltage and current value is monitored to exceed When the set limit value is set, the alarm lamp is turned on and the overvoltage and overcurrent information is displayed on the display screen, and at the same time, the controller outputs a power-off shutdown control command to control the sewing machine motor to stop running when the power is off. When the present invention detects voltage fluctuations input to the sewing equipment, it will give an alarm prompt and stop the machine, which has important production practice and practical significance for protecting the sewing equipment.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment control, and in particular relates to an overvoltage and overcurrent protection system for sewing equipment. Background technique [0002] The industrial sewing machine control process is that both the mechanic and the operator input the sewing process parameters through the operation panel to determine the kinematic characteristics of the various parts of the sewing machine, including the "parameter setting" and "action execution" of the sewing machine motor controller; most of the industrial Sewing machines are all that these two kinds of operations are concentrated in one operation panel to complete. The current control of industrial sewing machines such as overlock sewing machines is generally realized through the operation panel. However, the existing sewing equipment cannot give an alarm when the input external power fluctuates. If the fluctuation range is large, it will affect the ...

AI Technical Summary

Problems solved by technology

The current control of industrial sewing machines such as overlock sewing machines is generally realized through the operation panel. However, the existing sewing equipment cannot give an alarm when the input external power fluctuates. If the fluctuation range is large, it will affect the normal operation of the sewing equipment and may be damaged. Sewing equipment, developing an overvoltage and overcurrent protection system for sewing equipment, has important production practice and practical significance

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