Among the common failures of sand making machines, blockage is more common. There are various reasons for this, but they will affect the efficiency of sand making, thereby reducing production. Mastering the common causes and solutions of sand making machine blockage is very important to the production of enterprises. Here are some common reasons and solutions for sand making machine blockage: 　
　
1, Feeding speed is too fast
If the feeding speed and processing speed are not well matched, such as fast feeding, slow crushing, and untimely discharging, it is easy to cause blockage. Therefore, when feeding the sand making machine, we must ensure the uniformity of the feeding. And continuity, reduce the problem of equipment blockage. 　
　
In addition, when feeding, pay attention to the change of the ammeter pointer. Generally speaking, if the feed amount is too large, the deflection angle of the ammeter pointer will be large, and the motor will be easily burned out due to long-term dyeing and loading. In this case, the material door should be reduced or closed immediately, or the feeder can be increased to control the feed volume, so as to prevent the sand making machine from blocking the material. 　　

2, the material is inappropriate
If the material has a large water content, it may stick to the sand making machine. The efficient solution is to pre-heat and other treatments at the material inlet; if it is harder or larger in size, it will also cause blockage, which needs to be crushed before being fed. Sand making machine. 　　
3, Improper adjustment of the discharge opening 　　
In the production process of the crusher, if the discharge speed of the material is too slow, it will cause the subsequent crushed materials to accumulate in the discharge port and the crushing cavity, causing discharge obstacles.
　　
4, the V-belt tightness is inappropriate 　　
The production process of the sand making machine is to transfer the power to the groove wheel by the V-belt, and then crush the stone. When the triangular drive belt is loose, it will cause slipping, and it will rotate with the sheave instead of driving the sheave. The material cannot be subjected to normal crushing force, and cannot be crushed in the crushing cavity, resulting in material blockage. 　
　
5, The wearing parts are severely worn 　　
If the materials entering the sand making machine cannot be crushed sufficiently and discharged in time, material blockage is likely to occur. Therefore, if the wearing parts are severely worn, they need to be replaced in time.
　　
6, the voltage is too low or unstable 　　
The actual processing capacity of the sand making machine will be lower than the theoretical value. If the feeding speed is not adjusted at this time, it is easy to cause blockage. After the equipment is started, the on-site voltage must be stabilized. 　
　
7, improper manual operation 　　
This is a very common cause of blockage in sand making machines. The operator of the sand making machine must be systematically trained, and can only work after getting familiar with the equipment.