Seed-on-paper-band packaging machine suitable for plot breeding and working method thereof

A seed-on-paper-band packaging machine suitable for plot breeding, comprising:

• a seed delivery mechanism, comprising a seed filling assembly and an air-suction-type seed metering device connected sequentially, wherein a plurality of suction holes are arranged on an outer wall of the seed metering device at equal intervals along a circumferential direction of the seed metering device;
• a seed metering baffle is arranged on one side of one suction hole of the plurality of suction holes that is at a lowest point of the seed metering device facing a rotating direction of the seed metering device, and is configured to block seeds and reduce a speed of the seeds in a horizontal direction to zero;
• a paper-band releasing and collecting mechanism, being positioned below the seed delivery mechanism, comprising a first reel used for releasing a paper band and a second reel used for winding a seed-on band;
• a paper-band glue spraying and sealing mechanism, being positioned above the paper-band releasing and collecting mechanism and at a side of the seed delivery mechanism adjacent to the first reel, and being configured to spray glue onto the paper band;
• a seed-on band drawing mechanism, being positioned between the first reel and the second reel, and being configured to draw, extrude and dry the seed-on band;
• and
• a frame having wheels arranged at a bottom of the frame;
• wherein
• the seed filling assembly comprises a seed bin and a seed chamber, wherein the seed bin comprises a plurality of bin chambers, each of the plurality of bin chambers is respectively provided with an electrically controlled valve;
• a bottom of the seed bin communicates with the seed chamber, and part of the outer wall of the seed metering device is positioned in the seed chamber;
• a pneumatic interrupter is arranged inside the seed metering device, the pneumatic interrupter is rotatably mounted on a transmission shaft of the seed metering device through a bearing, and the pneumatic interrupter is contacted with the suction hole at the lowest point of the seed metering device through a steel ball capable of rotating in situ, to block a communication between the suction hole at the lowest point of the seed metering device and an inner cavity of the seed metering device;
• the seed-on band drawing mechanism comprises a tractor and a dryer arranged sequentially, wherein the tractor comprises two groups of sponge rollers arranged oppositely about the seed-on band, and the two groups of sponge rollers are driven by a servo motor to draw and extrude the seed-on band, and provide assistance in gluing of the seed-on band;
• and
• the seed metering device is arranged at a position no more than 1 cm above the paper band, and is configured to cooperate with the draw speed of the seed-on band drawing mechanism to evenly package the seeds, on the paper band.