Automatic recovery device and automatic recovery system for ink-jet printer of production line

The utility model discloses a production line ink-jet printer automatic withdrawing device and an automatic withdrawing system thereof, the automatic withdrawing system comprises an ink-jet printer automatic withdrawing device, a gypsum board detection device and a controller, the ink-jet printer automatic withdrawing device comprises an ink-jet printer rack and an ink-jet printer, the ink-jet printer rack comprises a cross beam and a support assembly, and the support assembly is arranged on the cross beam. The supporting assembly comprises a supporting column, a vertical sliding rail, a base assembly fixed to the top of the supporting column and a vertical pneumatic cylinder fixed to the lower portion of the base assembly, a vertical sliding groove matched with the vertical sliding rail is formed in the end of the cross beam, the cylinder bottom of the vertical pneumatic cylinder is connected with the base assembly, and the tail end of a piston rod of the vertical pneumatic cylinder is connected with the cro