manual brick making machine production causes uneven corners

manual brick making machine production processes are roughly the same, why some manufacturers will be a phone call asking them to produce the four corners of the unburned brick uneven in some places, high density, low density and in some places more, than the gap between the level large, seriously affecting the quality of masonry, resulting in not selling. In fact, this aspect of the problem is that there are several reasons.
1 mold: In order to save money on buying cheap out on my own soil brick making machine quality, but off cause uneven masonry corners; never care or long-term use of molds, making problems.
2 Installation Issues: Mold is improperly installed card mode when stripping or pressure head mold frame levels did not regulate, mold height difference exists, there is the card die situation;
3 ingredients Problem: After manual brick making machine materials, humidity or improper ratio, raw material particles is too large, no do not meet the requirements, such as uneven mixing.
4 Attribute: Adjust parameters or adjust the equipment, so that equipment more uniform cloth, bricks highly consistent.