公开(公告)号：US4507167A

公开(公告)日：1985-03-26

申请号：US545247

申请日：1983-10-25

Applicant: Hans-Joachim Jahme ,  Harry Bracke

Inventor： Hans-Joachim Jahme ,  Harry Bracke

IPC: B41F27/12 ,  B41L29/16 ,  C23F1/02 ,  B44C1/22 ,  C03C15/00 ,  C03C25/06

CPC classification number: B41L29/16

Abstract: Plate changing apparatus for use with offset printing machines, including a plate stacking table, plate individualizing means for sequentially withdrawing only the lowermost plate from the stacking table, and plate transporting and guiding means to guide the freshly withdrawn plate to a form cylinder of the printing machine after having passed through a fixing bath. The apparatus includes means to pass the separated plate through a fixing bath prior to its deposit on the form cylinder and a depository for used plates removed from the form cylinder. The novelty resides in the individualizing means including a rotatable vacuum roll disposed adjacent a partly open bottom surface of the plate stacking table or container or tray holding the plates so that it can engage the lowermost plate. The vacuum roll has its shaft mounted in parallel with the leading edge of the plate stack for linear displacement in parallel with the bottom stack surface. A fixing bath container is disposed directly below the plate stack and the individualizing means and adjacent the form cylinder. This arrangement results in a particularly compact construction while enabling the plates to be handled carefully.

Abstract translation: 用于胶版印刷机的换板装置，包括板堆叠台，用于从堆叠台顺序取出最下板的板个别化装置，以及板输送和引导装置，用于将新取出的板引导至印版的成型筒 机器经过定影浴后。 该装置包括在分离板沉积在成型滚筒上之前将分离的板通过定影槽的装置，以及从成型滚筒移除的用过的板的储存器。 新颖性在于个性化装置，其包括可旋转的真空辊，其设置在板堆叠台的部分开口的底表面或容纳板的容器或托盘附近，使得其能够接合最下面的板。 真空辊的轴与板堆的前缘平行地安装，用于与底部堆叠表面平行的线性位移。 定影槽容器设置在板堆和个体化装置的正下方并邻近成形缸。 这种布置导致特别紧凑的结构，同时能够小心地处理板。