The rice thresher has the advantages of high efficiency, energy saving, simple operation and reasonable price, and has developed into a popular agricultural product processing machine in the market. However, due to the influence of factors such as production equipment, technical level and employee quality of enterprises, the quality of rice mills currently on the market varies greatly. Consumers are prone to fall into misunderstandings when purchasing rice mills and suffer losses. The following summarizes several key shopping points to help consumers purchase suitable products.

Understand the performance and features of different products

There are mainly three types of rice milling machines in China, namely the separated rice milling machine, the combined rice milling machine for husking and milling, and the jet rice milling machine. The separable rice mill is easy to operate and low in price, but its model is outdated and the quality of rice milling is poor, so it has been gradually phased out. This husking and rice milling combination machine can process high-quality and cost-effective rice. It can complete the peeling and whitening procedures in one go. The processed rice is white and shiny. In recent years, it has become a mainstream product in the market.

2. Make specific choices based on your own needs

First of all, you can consult an authoritative quality inspection department or information network. Then, based on factors such as one's own economic level and processing capacity, position the reference indicators such as the type and hourly output of the rice mill to be purchased, and select the appropriate type and model.

3. Check the mechanical appearance and quality inspection certificate

First, inspect the overall appearance of the product to see if the paint film is intact. Whether the exposed surface of the casting is smooth and free of cracks; Are there any warning signs on the dangerous parts? Secondly, check whether the factory name and address of the product are complete; Is there a quality inspection report issued by the quality inspection department and a factory inspection certificate? Is there a three-guarantee certificate?

4. Check the operation status of the machinery through debugging

Read the manual carefully to understand the installation, commissioning, operation, safety precautions and other contents, and then conduct a trial run of the machine. During the operation, pay attention to checking whether the separator, feeding device and weight adjustment are flexible, and whether there is any jamming or abnormal friction sound. Check if your body is vibrating violently; Check the actual treatment effect.

The maintenance of the rice thresher is as follows:

The rice mill is clogged, resulting in a decrease in output. The main reasons are: excessive feed, too high outlet pressure or too low outlet. The outlet is blocked by rice bran, which might be caused by the slippage of the drive belt, the wear of the roller or the wear of the rice knife. The moisture content of the raw materials is too high or the screw heads are worn or loose.

2. The rice bran contains too much rice and broken rice. The main reason: The rice sieve is damaged or the joint is too large; The connection between the conveying head and the sand roller is uneven, and the surface of the sand roller is also uneven. The export of the rice machine is not smooth. The rice knife is too thick and the distance between the roller and the rice knife is too small. The speed is unstable.

3. Sudden increase and decrease in current. The main reasons are: damage to the feeding port, malfunction of the pressure valve, damage to the rice screen, and damage to the rice screen support. Foreign objects enter the machine or the feed volume is too large; The outlet pressure valve malfunctions, the rice sieve is clogged, and the rice bran discharge is not smooth. The rice pipe or husk pipe is clogged. The power supply is out of phase.

4. The precision of the machine body is reduced, and the roughness and whiteness are uneven. The main reason: The rice knife is worn out. Too little feed or too low outlet pressure.

5. The machine body vibrates greatly and the bearings get hot. The main reason: Imbalance of the shaft cylinder or pulley; The anchor bolts are loose. Excessive or insufficient oil injection into the bearing; The lubricating oil is too dirty.

6. There are strange noises and odors. The main reason: The drum is loose or cracked; Foreign objects fall into the machine; The bearing and valve seat are damaged. The drive belt is slipping. The nut is loose.