This machine consists  transmission, book presser , cam ,side cutter ,front cutter ,book carrier , vertical and horizontal book arranging device ,book-out shelf and electric control etc .The main transmission is roller bearing structure with bath lubrication ,well-tight seal and non-leaking .　　The structure of book pushing book is used for book arranging device to govern book out in good order .The operator only put book pile before carrier ,then this machine can auto finish all the action reliably.
 

　　This machine is fully closed in to prevent form wastepaper.The foot switch is equipped to control magnetic clutch(brake) alone ,thus it is more convenient and more safe to operate it manually . The assemble of workbench , active side mark , cutter readjustment are the same to QS420. The fast-positioning cutter apparatus is used for front cutter and side cutter in order to reduce time of cutter replacing . The leaning cutter device is equipped to avoid paper in back of book tearing for having good quality of book .(has requested patent ).
 

　　The variable frequency control is used for master motor and the counting device is used for book-out shelf ,both of them can display on screen clearly .