Automatically-limiting electric sausage filler and control method thereof

Abstract

The invention relates to an automatically-limiting electric sausage filler and control methods thereof. A piston is positioned at the tail end of a toothed piston rod and integrated as a whole; a DC motor drives an automatic shaft, the automatic shaft is meshed with the toothed piston rod through a gear train to drive the toothed piston rod to move up and down in a material cylinder, a meat outlet is formed at the bottom of the material cylinder, when the piston is arranged at the bottom of the material cylinder, the electric sausage filler has a lower limit; when the piston is arranged at the top of the material cylinder, the electric sausage filler has an upper limit; a lower limit signal detection element and an upper limit signal detection element are arranged on two sides of the toothed piston rod and correspond to an upper limit magnet strip and a lower limit magnet strip embedded on the toothed piston rod in an induction manner, and induction signals of the lower limit signal detection element and the upper limit signal detection element are sent to a control circuit which outputs a control signal to drive the DC motor to work. By virtue of the upper limit and the lower limit, the electric sausage filler is controlled to automatically fill sausages, overcurrent protection function is added in the control circuit for protecting the motor from stalling, so that a motor stalling protection device is omitted, and the cost is reduced; the sausage filling operation is simplified by virtue of the upper limit and the lower limit; and by virtue of the movement of the piston, the sausage filling process is fully automatic.