Industrial glass fiber fabric coating device

Abstract

The invention provides an industrial glass fiber fabric coating device capable of effectively eliminating bubbles in the coating process. The industrial glass fiber fabric coating device comprises a rack, a coating roller assembly, a conveying roller assembly, a fixed-thickness scraper assembly, a front ash removal assembly and a negative pressure assembly, wherein the coating roller assembly, theconveying roller assembly, the fixed-thickness scraper assembly, the front ash removal assembly and the negative pressure assembly are arranged on the rack, the front ash removal assembly comprises asonic ash blower and a negative pressure dust removal pipeline which are arranged oppositely, a feeding channel is arranged between the sonic ash blower and the negative pressure dust removal pipeline, and one end of the negative pressure dust removal pipeline communicates with the negative pressure assembly; and the negative pressure assembly comprises a vacuum pump, an air suction main pipe anda negative pressure cover, the vacuum pump communicate with the negative pressure cover through the air suction main pipe, the negative pressure cover is arranged above the coating roller assembly and a back roller in a covering mode, and the middle of the air suction main pipe communicates with the negative pressure dust removal pipeline. According to the device, the negative pressure assembly enables the coating working portion of a glass fiber fabric to generate negative pressure, the residual bubbles in a polymer solution at the coating position are rapidly separated out, and the qualityof the finally formed coating is better.

Description

technical field [0001] The invention relates to a coating device, in particular to an industrial glass fiber fabric coating device. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has various types and has the characteristics of good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. Through weaving process, glass fiber can be made into various fabrics. Such as glass cloth, glass ribbon, unidirectional fabric, three-dimensional fabric, knitted felt, etc. However, due to the disadvantages of brittleness and poor wear resistance of glass fibers, the surface of the fabricated fabric requires a polymer coating to improve the performance of the fabric. Generally speaking, the formation of fabric coating has the following methods: 1. Direct method. The direct method is to flatten the fabric to form a uniform plane, and then let the fabric pass under a static scraper, and the sc...

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Problems solved by technology

[0003] At present, direct methods are commonly used to form polymer coatings on the surface of glass fiber fabrics. Therefore, the quality of fabric surface coatings depends largely on the coating device. The current coating device has a single function and structure, mainly using The material roller is carried out in the form of dipping the solution in the polymer solution and rolling the fabric, because the viscosity of the polymer melted state is high and needs to be stirred continuously, so that bubbles are generated inside the solution and it is difficult to overflow. The remaining air bubbles on the surface of the fabric cannot be discharged in time, which will affect the performance of the final fabric product

On the other hand, the glass fiber fabric as the base layer needs to be dust-removed before coating. If the dust-removal effect is not good, the dust residue on the fabric surface will also produce bubbles in the polymer coating on the fabric surface during the coating process, which will affect the quality of the finished product.

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