METHODS AND APPARATUS FOR CLEANING A STENCIL

摘要

A stencil wiper apparatus (36) for wiping a stencil (16) of a stencil printer includes a material supply assembly (42) having a supply roller (44) to deliver a roll of material, a take-up roller (50) to receive the material, and a drive (52) to move the material across the stencil between the supply roller and the take-up roller. The apparatus further includes a fluid delivery (56) assembly to wet the material. The fluid delivery assembly includes an outer tube (72), an inner tube (76) and a fluid delivery source (68). The outer tube is designed to engage the material and to deliver fluid to die material. The inner tube is positioned within the outer tube, and designed to deliver fluid to the outer tube. The fluid delivery source delivers fluid to the inner tube. A method for wiping a stencil of a printing machine is further disclosed.