Double crank-rocker type synchronous gap adjusting roller press

The invention discloses a double crank-rocker type synchronous gap adjusting roller press. The double crank-rocker type synchronous gap adjusting roller press comprises an upper roller and a lower roller which are arranged in parallel on a rack, comprises a first lower fixing seat and a second lower fixing seat which are fixed on a rack base, comprises a first upper sliding seat and a second uppersliding seat which are elastically fixed over the first lower fixing seat and the second lower fixing seat correspondingly through supporting springs, further comprises a first gap adjusting mechanism and a second gap adjusting mechanism which are located over the first upper sliding seat and the second upper sliding seat to control the first upper sliding seat and the second upper sliding seat to be lifted to adjust a gap between the roller faces of the upper roller and the lower roller correspondingly, and also comprises a double crank-rocker type synchronous adjusting mechanism for synchronously driving the first