NRC16-76 Paralllel Paper Tube Machine

Raw Material Feeding: First, large rolls of paper strips are loaded onto the machine’s unwinding units. These units are equipped with tension control systems to maintain a steady and uniform feed rate, preventing paper jams or uneven stretching of the material.

Gluing and Laminating: As the paper strips are fed forward, a precision gluing mechanism applies a uniform layer of adhesive (typically water-based or solvent-based glue, depending on the paper type and end use) to one side of each strip. The machine then laminates multiple layers of glued paper strips together— the number of layers can be adjusted according to the required thickness and strength of the final paper tube.

Forming and Rolling: The laminated paper layers are guided into a forming section, where they are wrapped around a rotating mandrel (a cylindrical metal rod). The mandrel’s diameter determines the inner diameter of the paper tube. Simultaneously, pressure rollers apply consistent pressure to the wrapped paper, ensuring tight bonding between layers and shaping the tube into a smooth, parallel cylinder.

Drying and Curing: After forming, the newly created paper tube moves through a drying tunnel. This tunnel uses controlled heat (often from hot air or infrared heaters) to evaporate the moisture in the adhesive, curing it and strengthening the bond between the paper layers. The drying temperature and speed are carefully regulated to avoid warping or cracking of the tube.

Cutting to Length: Once dried, the continuous paper tube is fed into a precision cutting system. This system uses sharp blades or laser technology to cut the tube into sections of the desired length—with high accuracy (often within ±0.1mm) to ensure consistency across all finished products.