Method for preparing continuous bamboo fibers

A method for preparing continuous bamboo fibers, the method comprising:

• processing bamboo raw materials into bamboo fiber strips to form preliminary differentiated bamboo fibers;
• screening, by a bamboo unit quality evaluation device according to an optical classification or a mechanical flexural modulus, the bamboo fiber strips, and separating the bamboo fiber strips with different properties according to product requirements;
• performing high pressure splitting on the bamboo fiber strips which conform to a screening condition, to separate and form bamboo fibers and provide bamboo fiber raw materials for subsequent bamboo fiber products;
• separating the bamboo fibers with different slenderness ratios from the bamboo fiber strips after the high pressure splitting is performed;
• forming a partial oriented bamboo fiber mat with uniform density by the bamboo fibers;
• forming an oriented bamboo fiber bundle with uniform linear density by the bamboo fiber mat;
• twisting the oriented bamboo fiber bundle to form a bamboo fiber yarn;
• forming a rope by the bamboo fiber yarn;
• and
• winding the bamboo fiber yarn or the rope around a spindle based on a specification,
• wherein:
• the bamboo unit quality evaluation device includes a host machine and sorting frames, the host machine includes a frame, an inlet driving mechanism, a mechanical testing mechanism, and an outlet driving mechanism, all of which are arranged on the frame;
• the inlet driving mechanism includes an inlet bracket, inlet pressing rollers, and inlet driving rollers, the inlet pressing rollers being moveably arranged on the inlet bracket, each of the inlet driving rollers being arranged directly below a corresponding one of the inlet pressing rollers, and a power connection being provided between the inlet driving rollers and a power source;
• the outlet driving mechanism includes an outlet bracket, an outlet pressing roller, and an outlet driving roller, the outlet pressing roller being moveably arranged on the outlet bracket, the outlet driving roller being arranged directly below the outlet pressing roller, and a power connection being provided between the outlet driving roller and a power source;
• a plurality of sorting frames are provided at an outlet side of the host machine along a straight line, and a power connection is provided between the inlet driving mechanism and a power source and between the outlet driving mechanism and the power source;
• the mechanical testing mechanism includes two pillars arranged in parallel in a middle of the frame, a support plate being arranged on top of the two pillars, and a pressure sensor being arranged on the support plate;
• a cross beam is slidably arranged between the two pillars, and two test pressing wheels are arranged on the cross beam;
• a guide assembly is arranged below each of the test pressing wheels;
• and
• each of the sorting frames includes a plurality of conveying rollers arranged on a support, a sloping plate being arranged on one side of the support, an optical probe and a moving sheet being arranged between the conveying rollers, the moving sheet being connected to pneumatic clamps, and the optical probe being electrically connected to the pneumatic clamps.