With the changes of The Times, the sand mixing process in casting production from the beginning of artificial to mechanical equipment, let''''s have a look at the type and role of sand mixing machine!

Foundry sand mixer is used for mixing molding sand or core sand casting equipment, sand mixer generally has the following functions: mix old sand, new sand, molding sand binder and auxiliary materials evenly; make the binder and auxiliary materials evenly distributed and effectively coated on the sand surface.According to the characteristics of sand mixing process, sand mixing machine can be divided into:

Rolling wheel sand mixer with rolling, rolling and grinding functions;

Blade sand mixer with mixing action;

The countercurrent type or rotor type sand mixing which has the functions of grinding and mixing;

Swing wheel sand mixer with rolling and mixing function.

Sand mixer can be divided into intermittent type and continuous type according to its working property.

The wheeled sand mixer appeared in the early 20th century and is still widely used in clay - type (core) sand mixing.The sand mixer is equipped with wheels of certain weight. The wheels can rotate around the main shaft of the sand mixer as well as around the wheel shaft during sand mixing.At the same time the roller is rolled, the molding sand is coated with a film of binder.When mixing surface sand (a layer of molding sand near the surface of the casting cavity) and core sand, the quality of sand mixing is better than other sand mixing machines.In the early 1950s, the roller sand mixer with spring pressure was used.Due to the use of spring pressure, the dead weight of the roller is reduced, the spindle speed can be higher, and the rolling pressure can be automatically adjusted with the thickness of the rolled sand layer, so as to ensure the uniform effect of sand mixing and improve the efficiency of sand mixing.

Blade sand mixer is used for mixing resin self - hardening sand.When mixing sand, dry sand enters into two sand tanks. The binder is added into one of the sand tanks, and the hardener is added into the other sand tank for premixing with the original sand. Then, it enters the vertical agitator from the end outlet of the sand tank, and after rapid mixing, it comes out and fills the sand box or core box.Immediately after filling, automatically cut off the hardener and binder access, at the same time close the sand inlet gate and remove the residual sand in the tank.

With the development of high speed and high pressure molding automatic production line, a new type of mixing clay wet sand machine appears.Its structural features are in the sand mixer chassis above the eccentric part of the installation of scraper and blade high-speed rotor, chassis for clockwise rotation, rotor and scraper for counterclockwise rotation, rotor speed is higher than the speed of chassis.When mixing sand, as a result of chassis and rotor have opposite motion, and rotational speed is different, the molding sand on chassis then obtains different velocity difference, the friction force that produces corresponding between sand grain and shear force, produce rub grind thereby, mix, broken wait for action, mix not only make efficiency is high, the molding sand quality that mixes make gives is good.

Sanzhuji combines more than ten years of experience to customize and produce various sand mixers, mainly divided into wet sand/green sand/green sand/clay sand (clay + coal + sand + water) special rotor sand mixer ( GS high-efficiency rotor sand mixer, S14 series rotor type sand mixer); wheel type sand mixer (S13 series wheel wheel type sand mixer, S11 series wheel type sand mixer). Self-hardening sand/resin sand/furan resin sand/water glass sand (resin curing agent + sand) dedicated fixed single and double arm resin sand mixer (S24/S25 series fixed single and double arm resin sand mixer); mobile Special sand mixer for resin sand. Special sand mixer for coated sand (FS16 series special sand mixer for coated sand), sand processing equipment is produced according to the amount of sand, and one-stop procurement service is provided.

I hope your knowledge of the sand mixer will be helpful to your foundry company，Welcome to visit the factory

Qingdao Sanzhuji Equipment Manufacturing Co., Ltd. specializes in the production of sand reclamation equipment,foundry machines,Sand casting equipment,GS high efficiency rotary mixer,no-bake resin sand mixer,Jolt squeeze molding machine/Jolt-squeezing moulding machines,Multi- Piston Moulding Machine/Hydraulic multi-piston moulding machine,foundry molding machine,flaskless moulding machine,shot blasting machine,dust collector,according to the amount of old sand recovered Carry out plan customization, and provide sand reclamation equipment installation, commissioning, and training. Welcome guests to visit the factory.