The vibration mode of the cement brick machine directly affects the strength and compactness of the block bricks. Here we will introduce the common ones.
The vibration mode of the block machine. The forming methods of cement brick making machine mainly include vibration table vibration forming (referred to as table vibration) and mold forming.
There are two types of box vibration forming (referred to as mold vibration). From the perspective of vibration forming principle, table vibration and die vibration are both vertical vibrations, but the transmission.
The form of the progressive vibration force is different, the table vibration is indirect, and the mode vibration is direct.
Regarding the vibration frequency of the cement brick machine, from the perspective of concrete vibration technology, the frequency of forced vibration is close to
Resonance occurs at the natural frequency of the concrete mixture particles, at which time the attenuation is the smallest and the amplitude can reach the maximum. block
The aggregate particle size of the concrete mixture is 3~10mm, and the ideal vibration frequency is 100~125Hz.
In terms of machine, it can't reach it, generally 46~47Hz in the United States; individual molding machines in Europe are as high as 66~67Hz. This main reason
Because the life of the vibration system is considered, the vibration frequency is too high and the bearing life is short, so generally 44~50Hz can meet the requirements.
Block vibration forming requirements. Vibration frequency conversion has a certain meaning in theory, but from the perspective of engineering practice, especially
It is of little significance for the vibration molding machine with large vibration power, because the actual vibration molding time is only 1~2s,
Applying different vibration frequencies to the concrete mixture in such a short period of time will not change the densification effect significantly.
Due to the high vibration power of the current cement brick machine and the good vibration compaction effect, in the production of MU15.0 and MU20.0
When waiting for blocks, the vibration molding machine should be used first. Die vibration forming machines are generally more expensive, because the vibration excitation device is directly.
It is directly installed on the mold box, the structure of the mold box is more complicated, and the cost of the mold box is large. When choosing a cement brick machine, it should be based on.
Product requirements, production process plans and investment status are comprehensively researched and determined.