The invention discloses a
dyeing cylinder in a
dyeing assembly line of non-
woven fabric. The
dyeing cylinder comprises a cylinder body, a plurality of fixing buckles, an
aeration pipe, an adjusting valve, a plurality of air outlets, a plurality of guide rollers, a protection cover, heat insulation
layers, a plurality of connecting bodies, a
handle, a
discharge outlet and a
thermometer, wherein the internal side surface and the internal bottom surface of the cylinder body are both provided with the fixing buckles, the fixing buckles are provided with the
aeration pipe, the
aeration pipe is provided with the adjusting valve and the air outlets, the cylinder body is internally provided with the guide rollers, the cylinder body is provided with the protection cover which can be opened and closed in a matching way, the internal top surface and the internal side surface of the protection cover are both provided with the heat insulation
layers, the side surface of the protection cover is provided with an inlet and an outlet of the non-
woven fabric, the bottom part of the cylinder body is provided with the
discharge outlet, and the cylinder body is provided with the
thermometer. The dyeing cylinder disclosed by the invention has the advantages that manpower is not needed for stirring, the labor can be saved, the stirring is uniform, the heat loss in the dye cylinder can be also reduced, impurities such as dust and particles can be prevented from entering the dyeing cylinder, the dyeing quality of a product is ensured, and the structure is simple.