高粘度环氧树脂胶液的自动涂覆工艺方法

Automatic Coating Technology of High Viscosity Epoxy Resin Adhesive

针对点火器类火工品装配过程手工涂覆高粘度环氧树脂胶液效率低、涂胶量不量化、涂覆一致性差的问题,提出其在连续装配生产及间断式装配生产模式下不同的自动涂覆工艺方法。识别了影响该类胶液涂覆质量的因素,摸索了涂胶压力、针头孔径等多个影响因素与涂胶质量的关系。在此基础上,确定采用气动点胶、伺服加压涂胶的方法分别进行间断装配及连续装配模式下的胶液自动涂覆。开发适用于点火器类带药火工品胶液自动涂覆装置,用于装配生产。应用结果表明,该方法的应用能够使得涂胶效率提升80%以上,通过控制涂胶量,保证涂胶的一致性。

Aiming at the low efficiency of manual coating of high viscosity epoxy resin glue in the assembly process of igniter-type pyrotechnics devices,the non-quantification of glue amount and the poor consistency of coating,some different automatic coating methods under continuous assembly production and intermittent assembly production modes were proposed.The factors affecting the coating quality of this glue were identified.The relationship between the coating pressure,needle aperture and the coating quality was explored.On this basis,the method of pneumatic dispensing and servo pressure coating is determined to be used for automatic glue coating under discontinu-ous and continuous assembly modes respectively.The automatic glue coating device for igniter-type pyrotechnics devices’assembly and production was developed.The application results show that the application of this method can improve the coating efficiency by more than 80%.The consistency of the coating can be guaranteed by controlling the amount of the coating.