Filter cloth processing technology and device

The invention discloses a filter cloth processing technology and device. The filter cloth processing technology comprises the following steps of raw material selecting, thread twisting, treating through a warping machine, gray fabric weaving, hot air drying, calendaring, ultrasonic edge cutting, gluing and steel button knotting, joint treatment and packaging. A raw material adopts a polyester product; the step of thread twisting is completed at a time by adopting three threads and one strand; after grey cloth enters a heating cavity, a gear driving part drives a moving rod to do horizontal reciprocating motion and can drive a plurality of sets of air outlet plates to swing around the axis of a mounting base at the same time, and air blowing openings conduct hot air drying on filter cloth in the reciprocating swing process, so that the filter cloth is heated evenly, and the heating and drying effect is improved; a cooling cavity is arranged behind the heating cavity, and the filter cloth passes through the hea