Patent ID: 6138560
Filing Date: 2000-10-31
Classification: B41F,B41P

Abstract:
A sliding mechanism and a driving mechanism thereof for a cantilever type screen-printing machine, comprising an elevating mechanism, a transverse sliding assembly, a driving mechanism, and a print thickness fine adjustment mechanism;said elevating mechanism including two identical and upstanding aluminum extrusion columns symmetrically spaced at a predetermined distance, two steel slide rails and associated slides being symmetrically mounted to inner sides of said two columns for a guide block to transversely connect at two outer ends to said two slides;said transverse sliding assembly including a main seat made of an aluminum extrusion, said aluminum extrusion providing internal transverse hollow channels in which other necessary parts may be accommodated or mounted; said transverse sliding assembly being connected to said two columns of said elevating mechanism via said guide block and two slide pairs mounted to two outer ends of said guide block;said driving mechanism including a gear reduction motor that provides necessary driving force to move the transverse sliding assembly, said gear reduction motor having an output crank that is connected at an outer end to a lower end of a driving bar, and an upper end of said driving bar upward extending through and projecting from a top surface of a base of said screen-printing machine to pivotally connect to a back middle portion of said guide block, so that said guide block is brought by said driving bar, and accordingly the transverse sliding assembly, to move up and down; andsaid print thickness fine adjustment mechanism including said two slide pairs mounted to two outer ends of said guide block and a hand wheel assembly mounted to a head portion of said guide block to locate above said main seat of said transverse sliding assembly; each said slide pair including two associated guide rails separately screwed to said guide block and said main seat, said two guide rails being slidable relative to one another and therefore allow said main seat of said transverse sliding assembly to move up and down relative to said guide block; a wheel included in said hand wheel assembly being turnable to finely adjust a vertical position of said main seat of said transverse sliding assembly relative to said guide block, and accordingly a print thickness available on said screen-printing machine.