A wet coating device

Abstract

The invention discloses a wet-process coating device. According to the technical scheme adopted by the invention, the key point is that the wet-process coating device comprises a rack, wherein a transmission mechanism and a coating mechanism are arranged on the rack; the transmission mechanism comprises a charge roller, a coating roller and a discharge roller; one end of the coating roller is connected with a drive motor; the coating mechanism comprises a hopper positioned above the coating roller; a charge tube for feeding slurry into the hopper is arranged above the hopper; the hopper comprises a charge plate, a discharge plate and two side plates; the lower side of the discharge plate is connected with a reeding tool; and the two ends of the discharge roller are equipped with regulatingparts for regulating up-down positions of the discharge roller. When base cloth gets out from the discharge hopper, residual slurry is blocked by the reeding tool and cannot pass through, so that theslurry on the surface of the base cloth is uniform and even. The regulators regulate up-down positions of the discharge roller, so that spacing between the base cloth and the reeding tool is guaranteed to be changed, and therefore, thickness of the slurry on the surface of the base cloth can be suitable for different needs.

Description

technical field [0001] The invention relates to the field of synthetic leather production, in particular to a wet coating device. Background technique [0002] Polyurethane synthetic leather has the advantages of breathability, washability, wear resistance and anti-aging, and is the most ideal substitute for natural leather. The industrial production methods of polyurethane synthetic leather mainly include dry method and wet method. The wet method is as follows: First, the polyurethane slurry is evenly coated on the base fabric, and then the base fabric is passed through DMF aqueous solution to make the polyurethane solidify and tighten. Stick it on the base cloth. [0003] The Chinese patent with the notification number CN105568702B discloses a single-side coating machine based on synthetic leather processing, including a slurry pool, a first pressure roller is installed in the slurry pool, and the circumferential surface of the first pressure roller is partially immersed ...

AI Technical Summary

Problems solved by technology

This coating method has the following technical defects: first, the slurry is coated on the underside of the base fabric, and the slurry tends to fall when the base fabric moves to the solidification mechanism, resulting in uneven slurry surface; The amount of attached slurry cannot be controlled, which leads to the uncontrollable thickness of the slurry on the surface of the base cloth; third, the slurry at the bottom of the slurry pool cannot be attached to the first pressure roller, resulting in waste

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