Non-woven fiber board production line

Abstract

The invention discloses a non-woven fiber board production line which comprises an unwinding frame, an impregnating roller, a drying-cylinder drying machine, a drying and molding machine and a calendar which are sequentially arranged in the delivering direction of a non-woven base fiber, wherein the impregnating roller, the drying-cylinder drying machine, the drying and molding machine and the calendar are respectively provided with a drive dragging motor. The integral production speed of the production line can reach 30m/min at maximum; and compared with the prior art, the invention has higher production speed and higher yield. Because the drying and molding machine adopts hot air transmission type drying, the circulating hot air is blown from all directions of the fiber board and can carry out comprehensive drying on the non-woven fiber board; and the circulating hot air is beneficial to the osmosis and diffusion of colors in the fiber board in addition to have the drying effect, and the printed colors are uniform. The circulating hot air can also carry some impurities away and improve the surface effect of the fiber board. The breaking strength and the tearing strength of the fiber board are improved so that the physical performance consistency of the non-woven fiber board is higher.

Description

technical field [0001] The invention belongs to production equipment for finishing nonwovens, in particular to a production line for finishing nonwoven base fabrics by acupuncture into nonwoven fiber boards. Background technique [0002] Non-woven fiber sheet is made of needle-punched non-woven base fabric impregnated with high-solid glue, and then dried and shaped. It is generally used for midsoles or Luggage liner, hat brim, etc. [0003] Existing non-woven fiber boards are generally produced by a full-drum tenter. The structure of the full-dryer tenter is as follows: figure 1 As shown, it is composed of an unwinding frame 1', a padding machine 2', a drying drum drying machine 3' and a winding machine 4' arranged in sequence according to the conveying direction of the needle-punched nonwoven base fabric. The full drying drum tenter Machine production has the following disadvantages: [0004] 1. If the production speed of the drying cylinder is too fast, it is easy to ca...

AI Technical Summary

Problems solved by technology

During the production process of the drying cylinder, the temperature of the drying cylinder is not easy to control, the hardness of the produced fiberboard is inconsistent, and it is easy to dry, and the moisture content of the fiberboard is too high, which will cause the deterioration of the fiberboard (moldy, smelly), thus affecting the quality of the fiber. Strength and service life;

[0007] B. Difference in strength: When the needle-punched nonwoven base fabric is dried by a drying cylinder, heat shrinkage will occur when the temperature is higher than 180°C. The drying cylinder produces fiberboard, and the force on the fiberboard is only the elongation of the fiberboard in the longitudinal direction. and tension, can not effectively control the transverse elongation and tension

During production, increasing the speed of the vehicle or controlling the thickness of the fiberboard will affect the longitudinal tension of the fiberboard to a certain extent, while the transverse direction of the fiberboard is not stressed, which will cause; a. The width of the fiberboard shrinks, and the width does not meet the requirements b. The vertical and horizontal difference of fiberboard increases;

[0008] C. Appearance difference: The fiber board produced by the dryer has poor air permeability, and the surface is prone to glue spots, and the color and color difference are large

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