| 摘要 |
The method and apparatus relates to the use of a staging conveyor between an initial conveyor and a main conveyor, such as is used for large multiwall or woven packages or bags. The staging conveyor is driven by a servo which is controlled by a programmable logic controller or similar device. A photo-eye senses the leading of the package or bag after the package or bag is captured within the staging conveyor. The position of the leading edge is fed back to the programmable logic device which then calculates a desired speed of the staging conveyor in order to present the package or bag to the main conveyor at the desired time. The programmable logic device controls the servo so as to achieve the desired speed. |
