Article Sorting Equipment Position Detection via Light-Blocking Plates

The patent replaces the mechanical pulse encoder-based distance calculation system with an optical detection system. Detected plates attached to article supporters block light beams from detection devices, providing direct positional feedback without relying on chain length or pulse counting. This substitution eliminates measurement errors caused by chain extension and provides accurate real-time position detection.

The patent implements a feedback mechanism where detection devices continuously monitor the position of article supporters and shoes. The system receives detection results and determines whether to actually move shoes based on this feedback. This closed-loop control prevents accidental shoe movement when articles are not properly positioned, eliminating the harmful effect while maintaining sorting efficiency.

The patent uses simple detected plates that copy the function of complex mechanical encoders. Instead of using intricate pulse counting mechanisms, the system employs straightforward light-blocking plates that provide equivalent positional information through optical detection. This simplifies the overall system while achieving high precision, as the detected plates are basic components that can be easily manufactured and maintained.