Large-dispensing-stroke double-guide-rail dispensing system

The utility model belongs to the technical field of adhesive dispensing, and particularly relates to a large-adhesive-dispensing-stroke double-guide-rail adhesive dispensing system which comprises a base, a back plate is fixedly arranged at the top of the base, shells are symmetrically arranged on one side of the back plate, an adjusting assembly is arranged between the two shells, one end of the adjusting assembly is rotationally connected with the shells on the two sides, and the other end of the adjusting assembly is rotationally connected with the back plate. The adjusting assembly located on one side of the back plate is arranged, the first electric telescopic rod is started to drive the connecting piece to slide in the sliding groove, the connecting rod drives the shell to rotate on the back plate in the sliding process of the connecting piece, and therefore the distance between the two dispensing heads is adjusted; meanwhile, the shells on the two sides move inwards or outwards at the same time under t