Abstract: The present invention provides an improved twisting roller with a wire ends locking and cutting mechanism. The twisting roller includes a spool, a baffle plate at both ends, and a housing externally on the twisting roller. The locking groove and cutting groove are assembled onto the baffle plate of the twisting roller or hanging piece of the housing. A cutter is assembled into the cutting groove. The wires can be pulled through the locking groove and cutting groove for direct cutting. After the wires are cut, the wire ends are locked securely into the locking groove, and a portion is exposed for convenient operation and fixation with improved applicability.

Abstract: The present invention provides an improved lattice band structure of a crochet band style. There is a front crochet band, rear crochet band and connecting line element. The connecting line element is made of braided lines arranged at intervals along the extension direction of front and rear crochet bands. Both ends of the braided line are incorporated onto front and rear crochet bands. Due to the predefined length of braided lines, no braided line between front and rear crochet bands is required to be cut off. So, the front and rear crochet bands can be directly spread to a preset parallel state thus simplifying the structure and reducing the cost and chances of defect with improved economic efficiency.