Elastic self-positioning pre-dicing device and method

An elastic self-positioning pre-dicing device comprising:

• a V-shaped self-positioning device including a first elastic conveying face and a second elastic conveying face, the first elastic conveying face and the second elastic conveying face symmetrically arranged in a V-shape forming a V-shaped conveying space, the first elastic conveying face and the second elastic conveying face being respectively provided by a first conveying mechanism and a second conveying mechanism, and materials are kept in a vertical state when arriving at a bottom end between the two elastic conveying faces when conveying the two elastic conveying faces;
• a cutter arranged at the bottom end between the two elastic conveying faces to cut the materials in half along a longitudinal axis;
• and
• a separation device arranged at a lower part of the cutter, the separation device being configured to convey the materials cut in half to a next stage respectively, wherein:
• each of the first conveying mechanism and the second conveying mechanism includes:
• at least three rollers that include an upper roller, a lower roller, and at least one remaining roller of the at least three rollers that is arranged between the upper roller and the lower roller and serves as at least one middle roller,
• a flexible conveying belt that is sleeved on the upper roller and the lower roller,
• a center shaft that is coaxially arranged in a middle of each of the at least one middle roller, two ends of the center shaft extending out of the at least one middle roller, and the two ends of the center shaft extending out of the at least one middle roller are provided with through holes, and
• a fixed shaft that penetrates through the through holes and is then fixed to an outer frame, and the at least one middle roller is configured to move along the fixed shaft.