The invention relates to the technical field of
starch gelatinization, in particular to a
starch gelatinization device for glucose preparation, which comprises a gelatinization tank, a
discharge pipe and a water inlet
pipe with valves are fixedly arranged at the bottom and the side part of the gelatinization tank respectively, and a pretreatment mechanism is arranged on the gelatinization tank. According to the device, the driving motor is arranged to enable the crushing roller to crush
starch, and then the output motor and the
grinding roller can
grind the crushed starch, so that the starch is firstly crushed and then ground, the uniformity of the size of starch particles is greatly improved, and the influence on subsequent gelatinization and taste is avoided; meanwhile, output of a driving motor enables a discharging
pipe and an annular plate to rotate, rotation of the discharging pipe enables an extension pipe to do
circular motion, at the moment, rotation of the annular plate enables the extension pipe to stretch out and draw back through a sliding block, a tension spring and a triangular block, stretching-out and drawing-back positions are different, then starch is evenly laid, and the quality after rolling is greatly improved.