What is resin sand mixer machine

Resin sand mixer refers to a continuous sand mixing machine for mixing resin molding sand and core sand in foundry enterprises. This machine is a resin self-hardening sand mixer for continuous mixing molding or core making with liquid curing agent and liquid resin. Resin sand mixers can be divided into: double-arm resin sand mixers and single-arm resin sand mixers. In terms of domestic use, resin sand mixers generally refer to double-arm resin sand mixers, which are characterized by being composed of two levels of freely rotating agitating cages. The first level is conveying agitating cages, conveying raw sand; The second stage of high-speed sand mixing cage, high-speed sand mixing. Both liquid resin and curing agent are sprayed in the second stirring cage. The curing agent is sprayed first, and then the resin is sprayed after a delay.


1、 Main components:

The components of the resin sand mixer include: primary conveying stirrer, secondary mixing stirrer, PLC electric control system, operation electric control cabinet, liquid material system (including curing agent pump, resin pump, liquid material valve, etc.), air circuit system, sand quantitative system, etc.

2、 Structural features

The resin sand mixer is mainly composed of a low-speed conveying agitating cage, a high-speed mixing agitating cage, a base, a sand hopper, a liquid material conveying system, a gas pipeline system, an electric control operating system and a sand quantitative system. The key components are a high-speed mixing agitating cage shell that can be opened in all directions to facilitate cleaning. The surface of the sand mixing cutter is welded with wear-resistant materials, and the arrangement of the sand mixing cutter has a certain angle. In case of any change in the use process, the machine should be stopped to adjust the angle. Since the resin sand mixer uses curing agent as hardener, and the curing agent is a weak acid with certain corrosivity, pay attention to take protective measures during the addition process. The metering pump of resin sand mixer used for conveying curing agent also requires strong corrosion resistance. It is recommended to select the mechanical diaphragm pump imported from Italy OBL.

.Main features:

1. Double-arm continuous resin (sand) mixer is a single sand and single mixer. This machine is composed of a primary conveying stirrer and a secondary mixing stirrer. The conveying agitating cage is transported at low speed, and the sand mixing agitating cage is mixed at high speed.


2. The sand mixing cage is fully open. The cemented carbide welded on the sand mixing blade has a service life of more than 2000 hours.


3. The liquid material is transported by the mechanical diaphragm metering pump imported from Italy to transport the curing agent (curing agent pump), and the gear pump (equipped with stepless variable speed motor) to transport the resin. The imported gear pump can also be selected for transportation according to the user''s requirements.


4. The mixed molding sand head and tailings are very small. The electrical control system is controlled by imported PLC to ensure 100% operation rate of the machine.


5. The liquid material delivery valve (commonly known as the near-end control valve) can be a corrosion-resistant liquid material reversing valve (return valve). This valve can stop the pump without stopping. When the sand mixer is working, the valve is in the working position, when it is not working, it is turned to the return position, and then it is turned to the working position, which solves the problem of too much sand at the head and tail when the pump is frequently started. The liquid material is sprayed into a fan-shaped fog-shaped belt with the help of compressed air, which makes it easier for the binder to mix with the sand quickly and evenly. The blowback liquid material valve with blowback function can also be selected.