The piston bottle filling machine is suitable for quantitative filling viscosity liquid food into plastic bottles, glass bottles and jars, such as tomato sauce, chili sauce, tomato and garlic paste, mayonnaise, peanut and sesame butter, fruit pulp and puree, fruit and vegetable jams and other fruit sauces, syrup, honey, vegetable oil, dressings and spices and other free-flowing viscosity products.
The piston bottle filling machine drives the ball screw to move up and down through the servo motor to drive the piston in the cylinder to reciprocate to complete the filling work. When the ball screw moves in the reverse time, the piston is pulled down, the three-way valve is closed, the plug is closed, and negative pressure is generated in the upper part of the material cylinder. The material in the material tank is pressed into the feed pipe by atmospheric pressure, and enters the cylinder through the three-way valve to complete the suction work. When the ball screw moves clockwise, the piston is pushed upward, the three-way valve opens, the plug opens, and the piston squeezes the material. The material enters the discharge pipe through the discharge joint, and then enters the empty bottle to be filled through the filling head to complete the filling work. The piston filling machine is a single mechanical action for each filling, so it has a high filling accuracy for every regular container.