Function Of Grooving Department： 1.Grooving phase adjusting mechanism,Planet type gear structure. 2.Grooving phase is controlled by PLC& touching screen and adjusted by the way of electric digital type 360 degrees.(It can be adjusted while revolving and stopping.) 3.The space of the line-pressing wheel is adjusted by hand.The scale panel shows the adjusted data. 4.The space of the grooving knife-stand is adjusted by hand.The scale panel shows the adjusted data. 5.The horizontal moving of the line-pressing wheel and grooving knife-stand must be done synchronorsly.(Inserting joint-moving plank.) 6.The grooving knife must be adjusted synchronously. 7.The width of the grooving knife is 7.0mm and of alloy steel material.Undre heat treatment blade grinding.Sawtooth shape grooving knife.Double blades side repairing knife .The edge of the knife is very sharp and of high precision.