Roll crossing apparatus for cross-rolling mill.

摘要

Herein disclosed is a roll crossing apparatus for use in a cross-rolling mill of the type, in which upper and lower work rolls are caused to cross together with their respective backup rolls by moving upper and lower roll chocks in pass lines opposite to each other together with upper and lower cross heads interposed between the upper and lower chocks and the inner side face of a housing. The roll crossing apparatus comprises: upper and lower gradient portions (E) formed in opposite directions on the inner side faces formed on the upper cross head (1) and the lower cross head (2) and at the inner side faces of the housing (10); and wedges (3) interposed between the upper and lower cross heads (1, 2) and the inner side faces of the housing (10) and having upper and lower opposite slopes (F) made slidable on the gradient portions (E) of the upper and lower cross heads (1, 2). Thus, the upper and lower cross heads (1, 2) are moved in the opposite pass lines by moving the slopes (F) of the wedges (3) upward and downward. <IMAGE>