The invention discloses a tray-free operation mechanism for
brick stack packaging. The tray-free operation mechanism comprises a rack, a circulation chain, stack loading components, a stack rotating front packaging component, a stack rotating rear packaging component and a stack rotating component and is characterized in that the circulation chain performs stepping circulation motions on the rack,the stack loading components are equationally installed on the circulation chain at a certain distance, formed by horizontal flexible connection combination of a plurality of
branch section bars andcapable of performing corresponding combination according to different
brick types and stack types, and spaces between the adjacent section bars facilitate passing of a packaging strap; the stack rotating front packaging component, the stack rotating rear packaging component and the stack rotating component are installed on the rack at appropriate separation distances to perform own correspondingmotions independently; the stack loading components are hinged to the circulation chain together to perform stepping type motions, complex actions of tray loading, tray unloading, tray moving and trayreturning are omitted, time is effectively saved, the production quantity is increased, meanwhile, the fabrication maintenance cost is lowered, and the equipment
failure rate is reduced; in addition,the stack loading components can be reassembled according to the different
brick types, and requirements for the different brick types and stack types are simply and quickly met; and meanwhile, the stack rotating front packaging component, the stack rotating rear packaging component and the stack rotating component can be installed with the rack together being taken as independent parts, and whole
machine components are concise and compact in structure and easy to maintain and install.