Method for forming fall-plate weave by using groove pin warp knitting machine based on servo driving

A method for forming fall-plate structures by using a grooved needle warp knitting machine, the grooved needle comprising a groove needle bar and a tongue bar;

• wherein the groove needle bar and the tongue bar are connected to linkage and two servo motors, and the two servo motors respectively and separately control the groove needle bar and the tongue bar, comprising:
• a. moving the groove needle bar upward for a first time;
• pressing, by the sinker bar, an old loop;
• and looping, by a fall-plate guide bar, a pressed yarn around the groove needle, wherein a ground guide bar does not loop a ground yarn around the groove needle,
• b. moving the groove needle bar and the tongue bar downward for a first time;
• and placing the pressed yarn and the old loop inside of a needle hook of the groove needle bar,
• c. moving the groove needle bar upward for a second time;
• pressing, by the sinker bar, the fall-plate yarn and the previous loop to slip out of the needle hook of the groove needle bar;
• and looping, by the ground guide bar, the ground yarn around the groove needle, wherein the fall-plate guide bar does not loop the pressed yarn around the groove needle, and
• d. moving the groove needle bar downward for a second time;
• closing, by the tongue bar, the needle hook of the groove needle bar, wherein the closed hook includes the ground yarn;
• retreating the old loop and the pressed yarn from the closed hook;
• forming, by the ground yarn, a new loop;
• and placing the pressed yarn under the new loop.