Stable packing machine weighing support convenient to replace

A stable packing machine weighing support convenient to replace is characterized in that side beams are arranged on the four sides of the lower surface of a support chassis, two longitudinal beams are distributed between the side beams at the two ends of the lower surface in the longitudinal direction, the two ends of the weighing support in the longitudinal direction comprise two outer wheels and two inner wheels respectively, and the two wheels in each set are distributed in the direction perpendicular to the longitudinal direction; the outer wheels are arranged on the two longitudinal beams and can at least rotate in the longitudinal direction, the outer wheels are erected between one longitudinal beam and the side beam on the side, the distance between the two outer wheels is larger than that between the two inner wheels, a first weighing sensor is installed above the position between the inner wheels, and a second weighing sensor is installed above each outer wheel. Weighing is supported through wide and