A sand mixer for cylinder head casting

Abstract

The invention discloses a sand mixing machine for casting of an air cylinder cover. The sand mixing machine comprises a device support, a driving motor, a control electric box and a sand mixing barrel; the sand mixing barrel is fixedly mounted at the upper part of the device support; a feeding opening is formed in the upper part of the sand mixing barrel; a discharging opening is formed in the bottom of the sand mixing barrel; the driving motor is mounted on the device support; the control electric box is mounted on one side of the device support and is electrically connected with the drivingmotor; a rotating rod is mounted in the middle of the sand mixing barrel along the axis; the lower end of the rotating rod penetrates through the sand mixing barrel and is connected with a rotating shaft of the driving motor through a flange plate; a fixing disk is arranged in the middle of the part, located inside the sand mixing barrel, of the rotating rod; side rods are hinged to two symmetricsides of the fixing disk; a grinding wheel is mounted at the other end of each side rod; and the outside of the rotating rod is circularly sleeved with a casing pipe. The sand mixing machine is simplein structure, the casing pipe is mounted on the outside of the rotating rod, molding sand is prevented by a protecting sleeve from entering the casing pipe from the upper end of the casing pipe, themolding sand and the rotating rod are isolated, and abrasions of the rotating rod are reduced.

Description

technical field [0001] The invention relates to the field of cylinder head casting equipment and facilities, in particular to a sand mixer for cylinder head casting. Background technique [0002] Cylinders are widely used in transportation fields such as ships and automobiles. As an important component of cylinders, cylinder heads need to be processed through various processes such as casting, milling, and drilling in the production process. During the casting process of cylinder heads, it is necessary to use Molding sand is used for molding. Molding sand is generally mixed with molding materials such as raw sand for casting, molding sand binder and auxiliary additives in a certain proportion. When mixing molding sand, sand mixers are usually used to process the molding sand. [0003] When the traditional sand mixer mixes the molding sand, the rotating rod is located inside the sand mixing bucket and rotates, driving the roller to move inside the sand mixing bucket to crush ...

AI Technical Summary

Problems solved by technology

[0004] What the present invention aims to overcome is that the molding sand grains will enter the connection between the rotary rod and the sand mixing bucket during the rotation of the sand mixer, which will increase the friction between the rotary rod and the sand mixing bucket and cause damage to the rotary rod. The purpose is to Provide a sand mixer for cylinder head casting

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