The invention discloses an
adhesive applying device for
honeycomb paperboards and relates to a device for connecting paper or paper boards together. The
adhesive applying device comprises a rack, an oven and two groups of driving units which are vertically symmetrically arranged, wherein each driving unit comprises an annular pressing belt, a tensioning roller, a driving roller and a
planishing roller group, the annular pressing belt is tensioned by the tensioning roller, the driving roller drives the annular pressing belt to rotate, and the rollers of the
planishing roller group are pressed against the annular pressing belt, forming a planished surface on the annular pressing belt; a compression channel is formed between the two driving units; a plurality of
cut nails are fixed at the parts close to the edges, of the annular pressing belt of one of the driving units; a separating unit is arranged in front of the compression channel; the separating unit comprises a support roller group and a separating mechanism; the separating mechanism comprises a bracket capable of rising and falling and two separating roller groups which are connected to the bracket in a rotating manner; the separating roller groups are arranged at the two sides of the support roller group; and the
cut nails are correspondingly arranged between the support roller group and the separating roller groups. According to the device, by removing the edges of the molded
honeycomb paperboards, the damage of the edges of the
honeycomb paperboards can be prevented.