舂砂是一項笨重的体力劳动,目前不少工厂都采用风动砂舂代替人工舂砂。风动砂舂构造比较复杂,气缸与活塞都要用膨胀系数小、耐磨性强的材料,而且加工要求也高。現在介紹一种簡易风动砂舂,各厂可以自行制造。簡易风动砂舂的构造如图1,是由气缸、活塞、活塞杆和閥柜等組成。 Mud sand is a bulky manual labor, many factories are using pneumatic sand mound instead of artificial sand. Pneumatic sand 舂 structure is more complex, the cylinder and piston should be used with a small coefficient of expansion, wear-resistant materials, and processing requirements are high. Now introduce a simple wind sand, the factory can create their own. The structure of the simple pneumatic sands is shown in Figure 1, which consists of cylinder, piston, piston rod and valve cabinet.