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混凝土砌块成型机是一种模制密实成型干硬性混凝土的复杂专用设备。在一个成型循环过程中,包括混凝土拌和物充实模具、振动密实、块材坯体脱模,整个过程必须自动化。图1系砌块成型机密实系统的原理示意。通过冲击振动产生的超强动力,对干硬性混凝土拌和物产生密实作用;振动系统为同步对置、旋转产生不平衡波的正弦振荡运动方式,称为四波源振动器。图2说明这种振动器的工作原理,激振块的旋转速度在1800转～4200转之间;密实装置的部件之间可能发生相对运动、对振动台面产生冲击,使振动脉冲波被“导入”混凝土拌和物中,进而获得密实效果。在砌块成型机运行中,所产生振动波的运动函数是随机的。根据不平衡波的旋转速度,振动加速度最大可达到2500ms-2,因此在砌块成型机的密实系统、底座和基础上,引起的动态应力分布构成一种独特的工况。这对混凝土砌块成型机的设计、制造产生非常高的要求。文献1综述了混凝土砌块的生产成型过程。
Concrete block molding machine is a kind of complicated and special equipment for molding solidified concrete. In a molding cycle, including concrete mix to enrich the mold, the vibration is compact, and the blank body is demolded. The whole process must be automated. Figure 1 is a block forming machine compact system principle shows. Strong impact generated by the impact of vibration on the dry hard concrete mix has a compact effect; vibration system is synchronized opposite, rotating sine wave oscillation generated imbalance of movement, known as the four-wave source vibrator. Figure 2 illustrates the working principle of this vibrator, the rotation speed of the vibration block 1800 to 4200 rpm; compact device may occur between the relative movement of components, the impact of the vibration table, so that the vibration pulse wave is Into the "concrete mix, and then get a compact effect. In the block molding machine operation, the vibration wave generated by the movement function is random. According to the rotational speed of the unbalanced wave, the maximum vibration acceleration can reach 2500ms-2. Therefore, the dynamic stress distribution caused by the compact system, base and foundation of the block forming machine constitutes a unique working condition. This concrete block molding machine design, manufacturing have very high requirements. Literature 1 summarizes the production of concrete block molding process.