| 摘要 |
<p>An automatic position control system is for a slitter which longitudinally slits a sheet, e.g. of paper, into strips. Each slitter has an upper and lower slitter station which can be moved transversely to the sheet to be cut. Each slitter includes an electronic communication module, an electronic stepping motor drive module, and a stepping motor gear box and pinion assembly for moving the slitter. Each electronic module recognises when a main control computer 53 is communicating with that module by recognising its selectable address. Communication can occur in either direction between the electronic modules and the computer. The computer can command an electronic module to carry out specific functions and also can request information from the electronic module concerning its status at a particular time. Control information can also be supplied to the computer which can rapidly move the slitters to desired locations. <IMAGE></p> |
