Automatic roll changing device for adhesive tape raw material roll

The invention belongs to the technical field of adhesive tape production, and particularly relates to an automatic reel changing device for adhesive tape raw material reels. When the automatic reel changing device is used, after a roller shaft with used adhesive tape raw material reels moves to a reel changing position, a main shaft is fixed, and at the moment, a tensioning mechanism shrinks under the action of a tensioning driving mechanism; the sliding driving mechanism drives the roller shaft to move along the axis of the roller shaft, the roller shaft leaves the position between the first rotating plate and the second rotating plate, the adhesive tape raw material roll falls down, and a worker conveys the unused adhesive tape raw material roll to the position between the first rotating plate and the second rotating plate through tools such as a forklift. The roller shaft is driven by the sliding driving mechanism to penetrate into the roller of the adhesive tape raw material roll and is in sliding connect