94 inches computerized lock stitch duvet quilting machineIntroduce the knowledge of quilting machine

The threading mechanism of the quilting machine. It includes a driving shaft, a threading shaft, a main cam and a secondary cam are coaxially installed on the driving shaft; a main swing arm and an auxiliary swing arm are installed on an intermediate shaft, and the main swing arm cooperates with the main cam The intermediate shaft is driven to rotate, and the auxiliary swing arm cooperates with the auxiliary cam to drive the intermediate shaft to rotate, and the positive and negative coordination between the main swing arm and the auxiliary swing arm repeatedly swings;