Ceramic glue spreader for paper packaging

Abstract

The invention discloses a ceramic glue spreader for paper packaging. The ceramic glue spreader comprises a steel roller arranged on the middle part of the ceramic glue spreader, nichrome priming coatof 0.15 mm is sprayed on the surface of the steel roller to protect an iron core from long-term corrosion by glue, a ceramic coating of 0.3-0.4 mm is sprayed on the outer layer of the nichrome primingcoat, a non-contact and pressureless laser engraving process is used on the ceramic coating to carry out net pattern carving on the ceramic surface, according to the difference of the viscosity of the glue, a Teflon anti-stick coating is sprayed on the surface of the ceramic coating, and the ceramic glue spreader is prepared. The roller surface accuracy, circular runout and roundness of the laserengraved ceramic glue spreader can finally reach within 0.005 mm, the glue spreading gap can be controlled within 0.05 mm, glue loss is reduced by about 20%, the spreading amount of the glue is moreeconomical, only a shorter drying time is required, energy consumption and carbon emission are reduced, the service life of the ceramic glue spreader can reach more than 6 times that of a chrome plated glue spreader, and meanwhile, environmental pressure caused by hard chromium electroplating is not caused.

Description

technical field [0001] The invention relates to the technical field of gluing rollers, in particular to a ceramic gluing roller for paper packaging. Background technique [0002] At present, on the single-sided machine of the corrugated cardboard production line, a set of rubber coating rollers and uniform rubber rollers are used to control the thickness of the glue by the surface texture of the rubber coating rollers and the gap between the rubber coating rollers and the rubber uniform rollers. After the corrugated paper is formed, pass The gluing roller applies a layer of glue on the top of the corrugated paper and combines it with the inner paper to form a single-sided corrugated paper. In addition, on the composite machine, there is the same set of glue rollers and cot rollers. Glue is applied to the top of another layer of single-sided corrugated paper, and then compounded with face paper or different types of single-sided corrugated paper to form three or five layers. ...

AI Technical Summary

Problems solved by technology

However, the extrusion of the mold will cause the deformation of the steel roller, resulting in jumping on the roller surface. If the runout exceeds 0.05mm, use a press to correct it to less than 0.03mm, and then use the cylindrical grinder to finely grind the outer circle to 0.02mm. within

Then carry out electroplating, because of the high temperature of electroplating, it will cause jumping, so the jumping of the actual factory-made glue rollers is generally between 0.02-0.03mm

In the process of cardboard production, in order to meet the basic bonding strength, it is necessary to ensure that the amount of glue applied at the highest point of the roller meets the bonding strength, and the roller surface is finely ground, which will cause a certain degree of wear and tear on the roller surface. Can lead to uneven glue application

At the same time, the thickness of the glue layer caused by jumping changes within the range of 0.03mm in height difference, so the gluing gap between the gluing roller and the gluing roller (squeegee roller) can only be controlled above 0.07mm. To ensure sufficient bonding strength between papers, in view of the above problems, it is urgent to improve the existing glue roller

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