Who can tell us what kind of automatic bait feeder is sold in the market?

In the automatic bait feeder sold in the market, the structure of feed box and centrifugal throwing plate is basically stable, and there is little change between products. In order to improve the automation degree of bait feeder, manufacturers focus on the research and development of bait feeder and automatic controller, so the structures of these two parts are very different between products. There are several feeder structures. One is that the small motor is connected with the eccentric wheel to generate up-and-down vibration at the feed inlet end, and the other is that the vibration generated by the electromagnet is transmitted to the feed tray to make the feed move in one direction on the tray to form the feed.