Processing line of bast fiber

A processing line of bast fiber including various devices for carding, cutting, degumming, high temperature washing, separating and water washing, softening, drying, applying hemp-softening oil, permeating and reconditioning, stretch-breaking and carding, and combing and sorting, wherein:

• the cutting device includes a door-shaped rack with a motor disposed on one side, said motor drives a group of worm and worm wheel mechanisms through a driving mechanism, the worm wheel in said worm and worm wheel mechanism is coaxially connected to a crank disc of a crank mechanism, the crank disc is eccentrically attached with a connecting rod, an other end of the connecting rod is connected to a cutter which crosses two vertical beams of the rack, and is movably supported on a horizontal beam of the rack, the cutter and the horizontal beam have a correspondingly arranged guiding block and a guiding groove in inclined movement, two sides of the rack below the cutter are provided with a feeding support plate and a discharging support plate respectively, in which a cutter resting groove facing the cutter is connected between the feeding support plate and the discharging support plate, and at least one of the feeding support plate and the discharging support plate is designed with a scale for measuring fiber length;
• the degumming device includes a mechanical degumming device, a biological degumming device, and a high temperature digesting and degumming device which is also used for high temperature washing;
• the separating and water washing device includes a rack on which an endless holed conveying belt is disposed, and above the belt, a feeding roller, a compression roller, a plurality of beaters spaced apart and a separating roller are disposed sequentially, wherein a bundle collecting plate is disposed between the beater and the separating roller, and a high pressure nozzle is disposed above the beater and separating roller, a water collection tank is disposed below the belt, and an arranging mechanism is disposed at the end of the belt;
• the stretch-breaking and carding device includes a sequentially disposed stretch-breaking mechanism, a bundle collecting device, a gill box and a strip forming can, in which the stretch-breaking mechanism includes a hemp-feeding plate disposed at an input end of the rack and a feeding roller driven by the motor, several groups of stretching units are disposed at a front of an output end of the feeding roller, each stretching unit provided with two synchronously rotational support rollers, and a rotating speed of the support roller in the front stretching unit is greater than that of the support roller in a rear stretching unit;
• a pressurizing roller driven by friction of the two support rollers is disposed on a top of each of the two support rollers, wherein a pressurizing device connected to the rack is disposed in a central axial of the pressurizing roller, the two support rollers are connected to a driving mechanism at one end and supported on a moving device at a bottom;
• the combing and sorting device includes a feeding mechanism, a nipping plate mechanism, a carding mechanism, a pulling and separating mechanism, a strip producing mechanism, and a cleaning mechanism, wherein the feeding mechanism includes a feeding rack, a strip guiding plate, a strip guiding roller, a hemp holding plate, a compression roller, a feeding roller and a feeding box;
• the carding mechanism includes a circular comb and a top comb, in which needles of the circular comb are arranged in a circumference range between 0-270°, and density of the needle is gradually increased and a fineness of the needle is gradually reduced along a rotation direction;
• the pulling and separating mechanism includes a pulling carriage, a pulling roller, a pulling leather plate and a breaking cutter, wherein the pulling carriage is mounted on an adjusting bracket, the adjusting bracket is disposed with a bane at one side, and designed with an arc sliding chute inserted with a bolt which is fixed onto the rack, and the adjusting bracket can slide along the arc sliding chute by releasing the bolt and moving the barre;
• the strip producing mechanism includes at least two pairs of crimping rollers which are disposed with a horizontal groove in a surface;
• a breakage automatic stop device and a hemp-twisting automatic stop device are disposed in the carding mechanism and the pulling and separating mechanism, and a full package automatic stop device is disposed in a packaging mechanism.