Handling methods for different faults caused by deviation in automated assembly lines

Handling methods for different faults caused by deviation in automated assembly lines

Belt deviation is a common fault during the operation of automated assembly lines, and there are different ways to handle different faults. Let's take a look together:

1. Adjust the load-bearing roller group. When the belt of the conveyor belt deviates in the middle of the entire belt conveyor, the position of the roller group can be adjusted to adjust the deviation; During manufacturing, the mounting holes on both sides of the roller group are machined into long holes for adjustment. The specific method is to determine which side the belt is biased towards, which side of the roller group moves forward towards the direction of the belt, or which side moves backward towards the other side. If the belt deviates in the upward direction, the lower part of the roller group should move to the left, and the upper part of the roller group should move to the right.

2. Install the self-aligning roller assembly. There are various types of self-aligning roller groups, such as intermediate shaft type, four-bar linkage type, vertical roller type, etc. The principle is to use blocking or roller rotation in the horizontal plane to block or generate lateral thrust, so that the belt automatically centers to achieve the purpose of adjusting belt deviation. It is generally reasonable to use this method when the total length of the belt conveyor is short or when the belt runs in both directions, because shorter belt conveyors are more prone to deviation and difficult to adjust. However, this method is not used for long belt conveyors because the use of self-aligning roller sets will have a certain impact on the service life of the belt.

3. Adjust the position of the drive drum and the reversing drum. The adjustment of the driving drum and the reversing drum is an important part of adjusting belt deviation. Because a belt conveyor has at least 2 to 5 rollers, the installation position of all rollers must be perpendicular to the centerline of the length direction of the belt conveyor. If the deviation is too large, it will inevitably cause deviation. The adjustment method is similar to adjusting the roller group. For the head drum, if the belt deviates towards the right side of the drum, the right bearing seat should move forward. If the conveyor belt deviates towards the left side of the drum, the left bearing seat should move forward. Correspondingly, the left bearing seat can also be moved backward or the right bearing seat can be moved backward. The adjustment method of the tail drum is exactly opposite to that of the head drum. After repeated adjustments until the belt is adjusted to the ideal position, accurately install its position before adjusting the drive or reversing the drum.

4. Adjustment at the tension point. The adjustment of belt tension is a very important step in the adjustment of belt conveyor deviation. The two deflection rollers at the upper part of the heavy hammer tensioning point should be perpendicular to the vertical line of gravity in addition to the length direction of the belt, ensuring that their axis centerlines are horizontal. When using spiral tensioning or hydraulic cylinder tensioning, the two bearing seats of the tensioning drum should translate simultaneously to ensure that the drum axis is perpendicular to the longitudinal direction of the belt. The specific adjustment method for belt deviation is similar to the adjustment at the drum.

5. The adjustment of belt deviation of two-way belt conveyor is much more difficult than that of one-way belt line. In specific adjustment, one direction should be adjusted first, and then another. When adjusting, carefully observe the relationship between the direction of belt movement and the tendency of deviation, and make adjustments one by one. The focus should be on the adjustment of the driving drum and the reversing drum, followed by the adjustment of the idler and the material dropping point. At the same time, it should be noted that the force on the length direction of the belt section should be uniform when the belt is vulcanized, and the force on both sides should be as equal as possible when using a guide chain for traction.