Optimization ideas for production scheduling of fully automatic filter assembly line

Filter production machines often include units such as end cap curing, hot melt adhesive injection, mesh installation, and thread locking. An assembly line needs to handle filter cartridge orders of different lengths, diameters, and interface specifications simultaneously, and the replacement time becomes an efficiency bottleneck.

Suggest using grouping technology: group orders according to "same diameter, similar length", process similar products first, and reduce the number of product changes. For example, concentrate on producing all 2.5-inch diameter filter cartridges within a week and then switch to 4.5 inches.

Another practical technique is modular assembly. By making positioning fixtures of different specifications into quick change base plates, the production time can be compressed from 40 minutes to less than 8 minutes. At the same time, each filter manufacturing machine is equipped with a small buffer material rack to avoid the entire line shutdown due to temporary shortage of previous processes.

In terms of data monitoring, the time taken for each batch of production change and the scrap rate were recorded. Analysis revealed that the waiting time for preheating hot melt adhesive is often of no value and can be eliminated by alternating the use of dual heating cylinders. These minor improvements can increase the overall equipment efficiency (OEE) by 15% to 25%.