Introduction to rotary screen printing machine

Rotary screen printing machines are divided into vertical, horizontal and radial types according to the arrangement of the rotary screen. The most commonly used machine at home and abroad is the horizontal rotary screen printing machine, which has two basic types: scraper printing and magnetic roller scraping. The rotary screen printing machine consists of cloth feeding, printing, drying, cloth discharging and other devices, as shown in the figure "Rotary Screen Printing Machine". The mechanical components of the printing part can be divided into printing rubber guide belt, rotary screen driving device, rotary screen and printing scraper frame, pattern matching device, rubber guide belt washing and wiping device, and printing fabric pasting and slurry pump system. When printing, when the printed fabric comes into contact with the rubber guide belt, a layer of fabric adhesive is pre-coated on the rubber guide belt so that the printed fabric is close to it without moving. After printing, the fabric enters the drying device. The rubber guide belt travels in a reciprocating loop and is transferred under the machine for water washing and scraping off water droplets. The drying and cloth discharging device adopts loose hot air drying. The printed fabric is immediately separated from the rubber belt. It relies on the polyester guide belt rotated by the driving roller and uses the pressure of the hot air nozzle to smoothly "stick" the fabric to the polyester guide belt and enters the drying room for drying. The fabric dried by hot air is sent out from the drying section at the correct speed and appropriate tension. Fold or roll the fabric after printing. The rotary screen printing machine has the following advantages: the nickel mesh is lightweight, easy to operate, such as loading and unloading the rotary screen, patterning, and adding pulp, and has low labor intensity; high output and small color registration limit. Since the processing is carried out without tension, it is suitable for printing easily deformed fabrics and wide fabrics without interlining, but it is not easy to print fine patterns such as moire and fine lines.