Trimming device

The utility model relates to the field of paper box processing, in particular to a trimming device. The trimming device comprises trimming tables, compression roller devices and adjusting plates, wherein the trimming tables are arranged inside the adjusting plates; both sides of the trimming tables are connected with the adjusting plates through springs; fixed seats for accommodating the compression roller device are arranged on the adjusting plates; the front fixed seat and the back fixed seat are connected to a fixing rod and a rotating rod at the two ends of the compression roller devices respectively; compression rollers are arranged between the fixing rod and the rotating rod; adjustable bolts which are in threaded fit are arranged behind the U-shaped adjusting plates; one end of each adjustable bolt is pressed against the trimming tables; clamping plates are arranged in the trimming tables; springs are arranged between bolts on both sides of the compression roller devices and the compression rollers on which bearings are arranged in a sleeving way; the distance between the trimming tables can be changed by easily rotating the adjustable bolts in order that a box can pass through. In the entire trimming process of the box, downward acting force is applied to the top of the box through the compression rollers, so that the stability and accuracy of the box are ensured in a transport process.