It can be widely used for mixed packaging of accessory installation screws, nuts, and small plastic parts for electrical appliances, lighting fixtures, and hardware decoration products. This device adopts a microcontroller control board, and the LCD display screen intuitively displays various technical parameters of the operation settings. It can also be equipped with Chinese and English display screens for operation, with touch sensitive button control, making it easy to achieve human-machine dialogue. Advanced photoelectric recognition, bag making length, and the ability to directly set bag length on the operating surface. When using packaging materials with color codes, the color codes can be captured, making bag pulling synchronous, smooth, and accurate.