Short fibers and dust fly out from the two side panels of the upper vibrating hopper feeder, polluting the workshop air.
Cause analysis: The two side panels of the upper vibrating hopper feeder are mesh panels, the purpose is to exhaust air, but the dust in the fibers is also directly discharged, affecting the air quality of the workshop, which is not conducive to keeping the workshop clean and tidy, nor to the health of the workshop workers.
Solution: The mesh panels on the two side panels of the upper vibrating hopper feeder are removed, and the exhaust air is not directly discharged to the workshop. The mesh panels on the top plate are retained, and a dust hood is added to the top of the fiber storage box to exhaust air, and an exhaust fan is added.
The corner nail curtain brings too few fibers to the vibration area, and the output is low.
Cause analysis: The distance between the fiber-distributing roller and the corner nail curtain is too small. The fibers grabbed by the corner nail curtain from the fiber bin are knocked down by the fiber-distributing roller when passing through the fiber-distributing roller, and too few fibers are left on the corner nail curtain. Although the distance between the fiber-distributing roller and the corner nail curtain is adjustable, for some coarse denier fibers, the distance is small.
Solution: Appropriately reduce the diameter of the fiber-distributing roller so that there is more room for adjustment of the spacing between the fiber-distributing roller and the corner nail curtain to adapt to different raw materials.
Metal substances are detected in the product.
Cause analysis: There are fine metal substances or even metal dust in the raw materials. They are contained in the tightly compacted raw materials. The metal detection device equipped with the front-end cleaning equipment may not be able to completely detect these substances in time. If metal substances enter the subsequent equipment, it will affect the performance of the equipment and affect the product quality.
Solution: Add a strong magnetic bar above the corner nail curtain to absorb the remaining metal substances in the fiber to prevent them from entering the subsequent equipment, thereby protecting the subsequent equipment and fully removing metal impurities in non-woven fabric products.
For some raw materials, the uniformity of the fiber dropping is not good, and the output fiber layer is relatively loose and not dense.
Cause analysis: For some long fibers, fibers with insufficient curling and weak cohesion or coarse denier fibers, the fibers themselves are relatively fluffy. Under the same vibration conditions, they fall slowly compared to other fibers, resulting in deviation in mixing effect and difficulty in compaction.
Solution:
① Appropriately lengthen the vibration plate and the vibration front plate to lengthen the vibration area, prolong the vibration time of the fiber, and fully mix the raw materials;
② Appropriately increase the amplitude, increase the vibration space of the fiber, increase the vibration effect of the fiber, and fully mix the raw materials;
③ The vibration front plate is a mesh plate, which has an exhaust function, but the upper half of the vibration area of the vibration front plate is an observation window, and only the lower half is a mesh plate. For fluffy fibers, the exhaust volume needs to be increased, so the vibration plate is also changed to a mesh plate. During the reciprocating action of the vibration plate, the air in the fiber is fully discharged, so that the fiber falls smoothly and the output fiber layer is dense.
The fiber press roller failed to press the output fiber layer.
Cause analysis: The fiber press roller can only be adjusted forward and backward, not up and down. When the fiber layer becomes thinner, the fiber press roller cannot press the fiber layer, and the output fiber layer is not solid.
Solution: Change the adjustment method of the fiber press roller so that the fiber press roller can be adjusted forward and backward, and can also be adjusted up and down according to the thickness of the fiber layer to play the role of layer pressing.
There is fiber accumulation on the fiber guide plate below the fiber stripping roller.
Cause analysis: The cross-section of the fiber guide plate is triangular, the angle of the fiber guide plate is small, and the fiber guide slope is small, which leads to poor fiber flow and fiber accumulation.
Solution: Change the angle of the fiber guide plate to increase the fiber guide slope. The fiber will slide down smoothly and there will be no fiber accumulation. Since the accumulated fiber will form a large fiber ball once it falls, it also avoids the impact of fiber accumulation on the uniformity of fiber drop.