S20 series bowl type sand mixer is a new type of high-efficiency sand mixer. It is characterized by high sand mixing efficiency and short sand mixing cycle. It is named because of the design of the sand mixing chamber as a sphere. Its working mechanism consists of two sand mixing blades. Symmetrically mounted on the crosshead, the transmission device drives the main shaft to rotate at high speed during sand mixing, which drives the two blades with special helix angles to rotate, turning the sand up by vortex motion, and fixing the blades in the upper hemisphere to reflect the sand. The sand is quickly mixed with the curing agent and the resin sand binder, and there is a sand outlet under the sphere to release the molding sand. The spherical shape of the basin on the one hand can reduce the dead corner of the sand pile, which is conducive to accelerating the circulation of the sand flow. On the other hand, under the action of the spiral blades, the inertia of the sand is used to make the sand flow upward along the ball, and then rolled down under the force of gravity. Thrown by another blade. The speed of the main shaft of the sand mixer is high, the blades throw and diffuse the material, and the effects of convection friction and tumble are very strong, so the sand mixing efficiency is high.
Resin sand bowl type sand mixer system is one of the necessary equipment of the cold box core shooting machine. The bowl type sand mixer produced by our company is an intermittent automatic sand mixer. The sand is mixed in a bowl container through a special high speed. Stirring the blades to promote the three-dimensional eddy current movement of the sand body can fully and uniformly mix the sand with the resin binder and curing agent in a short time, thereby obtaining high-quality cold-core box resin sand.
This equipment is small and used only for mixing self-hardening core sand and molding sand. It can be used alone or combined with other self-hardening sand equipment. Sand mixer can also be used for separate experiments.The continuous sand mixer is divided into four types: single arm, double arms, lifting type and mobile type. It is suitable for mixing various types of self-hardening sand in the production of cast steel, cast iron and non-ferrous alloys castings, which not only can meet the single-piece and small-batch manual molding, but also can be configured in core shooting machines and mechanized molding line.