A automatic cycle assembly line for assembly of car seat back

The utility model discloses an automatic cycle assembly line for assembly of car seat back, including upper and lower parallel arrangement and the same upper and lower assembly line of structure, upper and lower assembly line all reaches including " worker " type guide rail and installs a plurality of station frocks on " worker " type guide rail at the, each in succession the station frock all is connected with " worker " type guide rail direction, it is provided with an elevating gear and a thrust unit to go up the assembly line tail end, the assembly line tail end is provided with the 2nd elevating gear and the 2nd thrust unit down, the station frock of assembly line tail end drops to the assembly line head end and promotes the station frock by a thrust unit and makes way in the elevating gear drive, the 2nd elevating gear drives the ascending supreme assembly line head end of station frock of lower assembly line tail end and promotes the station frock by the 2nd thrust unit and makes way. The utility model discloses simple structure can realize car seat back automatic cycle assembly operation on the assembly line.