Inner spray method and device for medical packing aluminum tube

Abstract

The invention discloses an inner spray method for a medical packing aluminum tube. The inner spray method comprises a process for spraying a coating onto the inner side face of the thin top of the medical packing aluminum tube and a process for spraying the coating onto the inner side face of the tube body of the medical packing aluminum tube, and comprises the following specific steps of: inserting a thin-top spray gun from an opening on the tail part of the aluminum tube for spraying on the inner side of the thin top; and inserting two tube body spray guns for spraying onto the tube shoulder and the tube body of the aluminum tube, wherein an angle of 15-25 degrees is formed between the spray direction of the coating and the central axis of the medical packing tube. The pressures of the coating and air current passing through the thin-top spray gun and the tube body spray guns are adjusted according to the temperature and specifications of the medical packing aluminum tube. The invention further discloses an inner spray device, which comprises a thin-top spray gun and two tube body spray guns. In the invention, the coating is sprayed onto the medical packing aluminum tube through the tube body spray guns and the thin-top spray gun, so that screw threads on a coat are prevented after spraying, air bubbles do not appear on the shoulder, variegation and slobbering inside are prevented, coating is uniform, the aluminum tube is isolated effectively from a medicament, and the effects of resisting corrosion and isolating are achieved.

Description

Technical field: [0001] The invention relates to the fields of operation and transportation, in particular to a method for coating a liquid on the surface of an object, in particular to an internal spray coating method and an internal spray coating device for a medicinal packaging aluminum tube. Background technique: [0002] Since aluminum is a chemically active substance, it is very easy to react or interact with the medicine contained in the aluminum tube, resulting in rotten tube and drug denaturation and deterioration. Therefore, the internal spraying of the aluminum tube is extremely important, which directly affects the function and use of the aluminum tube. [0003] Generally, the main component of the material for internal spraying is epoxy phenolic resin. Its main principle is to use an annealed hose (cleaned hard tube) to spray three times, and then pass a set of special spraying devices to spray the aluminum tube and the contents. An inert barrier is formed betwe...

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to provide a method for internal spraying of aluminum tubes for pharmaceutical packaging, the method for internal spraying of aluminum tubes for pharmaceutical packaging needs to solve the problems of the internal spraying process of the flexible tubes for pharmaceutical packaging in the prior art. Technical issues such as coating threading, shoulder bubbles, undercoat mottle and drooling appear

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