公开(公告)号：US3835777A

公开(公告)日：1974-09-17

申请号：US32411373

申请日：1973-01-16

Applicant: HARRIS INTERTYPE CORP

Inventor： KRYGERIS A

IPC: B41F31/04

CPC classification number: B41F31/045

Abstract: Control of ink supply in a printing press in accordance with sensing of the density of ink being printed on imprint-receiving material, wherein sensing measurements are made and smoothed by considering previous printing press cycles and wherein the smoothed measurement is compared to a desired predetermined standard density and the ink feed is adjusted accordingly. Erratic density measurements are automatically identified and disregarded. Interaction between adjacent ink adjustment keys of the ink feed mechanism is automatically taken into account, and lift-off of keys from an ink fountain blade of the mechanism is prevented. Proportional, derivative, and integral control signals are produced and combined to provide a composite control signal for the ink feed. The invention may be implemented by analog or digital embodiments.

Abstract translation: 根据印刷在印版接收材料上的油墨密度的感测来控制印刷机中的墨水供应，其中通过考虑先前的印刷机循环来进行感光测量和平滑，并且其中将平滑测量与期望的预定标准进行比较 密度和墨水进给量相应调整。