Pre-folding line mold pressing device for pasting color box

In order to solve the technical problems of low production efficiency and high risk of the existing pre-folding line mould pressing device, the utility model discloses a pre-folding line mould pressing device for pasting a color box, which comprises an indentation mould, a die cutting platform and two parallel thin belt lines, the die cutting platform is arranged below the indentation mould, the side edges of the die cutting platform are respectively provided with a transverse groove, and the thin belt lines are arranged in the transverse grooves. Upper-layer belts of the two thin belt lines are located in the corresponding transverse grooves, and the top faces of the upper-layer belts are higher than or equal to the top face of the die cutting platform. A cavity is formed in the die cutting platform and connected with external negative pressure equipment, and a plurality of air suction holes communicated with the cavity are formed in the center of the top face of the die cutting platform. According to the fe