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The turning mechanism on the conveyor belt is an important component specially designed to change the direction of the conveyor belt, and its structure and design may vary depending on the application and requirements. The following is a general description of the turning mechanism on the conveyor belt: 
1、 Basic components of the U-turn mechanism 
The U-turn mechanism usually consists of the following key components: 
Headframe and tailframe: used to support and fix the two ends of the conveyor belt, ensuring that the conveyor belt can remain stable during the turning process. 
Drive drum: set on the head or tail frame, powered by a driving device (such as a motor) to enable the conveyor belt to operate continuously. 
Reversing drum: used to change the running direction of the conveyor belt. In the turning mechanism, the reversing drum is usually installed at an appropriate angle to guide the conveyor belt from one direction of operation to another. 
Roller and intermediate frame: Roller is used to support the conveyor belt, reduce its running resistance, and ensure that its suspension does not exceed a certain limit. The middle frame is used to install rollers and support the weight of the conveyor belt. 
Tightening device: used to ensure that the conveyor belt has sufficient tension to generate sufficient frictional traction between the driving drum and the conveyor belt. In the U-turn mechanism, the tensioning device may need to be adjusted to adapt to changes in the direction of the conveyor belt. 
2、 The working principle of the U-turn mechanism 
When the conveyor belt needs to change its running direction, the following steps usually occur: 
Drive device startup: The motor and other drive devices start to provide power for the transmission drum. 
Conveyor belt movement: Under the drive of the transmission drum, the conveyor belt starts to run continuously. 
Change direction roller function: When the conveyor belt reaches the change direction roller, due to its special surface design (such as a flower like adhesive layer), the conveyor belt will be guided to another running direction. 
Roller and intermediate frame support: During the process of changing the direction of the conveyor belt, the roller and intermediate frame provide necessary support to ensure a smooth transition of the conveyor belt. 
Adjustment of tensioning device: The tensioning device may need to be adjusted as needed to maintain stable tension of the conveyor belt after changing direction. 
3、 Turning mechanism for special application scenarios 
In certain special applications, such as food processing, mining, etc., the turning mechanism on the conveyor belt may require additional functions or features. For example, in the food processing industry, it may be necessary to use a turn around device that imitates the manual kneading of Mantou conveyor belt. The device realizes the effect of manual kneading of Mantou through specially designed kneading side belts, turn around guards and other components. In mining, the turning mechanism of the mining belt conveyor needs to be able to withstand significant material impact and wear, and ensure the stable operation of the conveyor belt in harsh environments. 
4、 Maintenance and upkeep 
To ensure the long-term stable operation of the turning mechanism on the conveyor belt, regular maintenance and upkeep are required. This includes checking the wear and tear of components such as drums and rollers, and promptly replacing damaged parts; Clean the adhesive on the conveyor belt to prevent it from affecting the transmission or damaging the belt; And adjust the tensioning device to ensure that the conveyor belt has appropriate tension. 
In summary, the turning mechanism on the conveyor belt is an indispensable and important component in the conveyor system. Its structure and design need to be customized according to specific application scenarios and requirements to ensure that the conveying system can operate efficiently and stably.