The KT-266 window opening film coating and adhesive bonding machine integrates window opening film, pre coated mouth glue, and envelope bonding into one, and can process Chinese 1-7 size, Western 2-7 size, and other non-standard envelopes. It has bottom suction feeding and can continue paper without stopping the machine; Pin positioning, automatic indentation, ensuring paste accuracy; Air suction rollers stack paper with uniform and stable spacing; Halogen lamp drying ensures rapid drying of the adhesive; The combination of photoelectric counting and electromagnetic mechanism ensures accurate counting.