基于温度变化的压差式密封成型技术的研究

Research on Differential Pressure Seal Forming Technology Based on Temperature Change

摘要: 为了解决中支烟机组YB55小盒外包装BOPP薄膜气密性缺陷问题，本章对YB55小盒热封系统的热封工艺进行研究。为改变小盒BOPP薄膜气密性缺陷问题，对BOPP薄膜的材料特性和热封特性进行分析，根据薄膜材料的热封机理研究BOPP薄膜在热封过程中的变化过程，并通过气密性试验验证影响BOPP气密性的因素。最后结合小盒硬包气密性差的缺陷对烙铁的结构进行分析，改进烙铁的结构。用ANSYS热分析模块对烙铁的温度分布进行分析并对比烙铁改进前后的效果得出相应结论。

Abstract: In order to solve the air tightness defect of BOPP film in the outer packaging of YB55 small box of medium cigarette set, this chapter studies the heat sealing process of YB55 small box heat sealing system. In order to change the air tightness defect of small box BOPP film, the material character-istics and heat sealing characteristics of BOPP film are analyzed. According to the heat sealing mechanism of film material, the change process of BOPP film in the heat sealing process is studied, and the factors affecting the air tightness of BOPP are verified by air tightness test. Finally, com-bined with the defect of poor air tightness of small box hard package, the structure of soldering iron is analyzed to improve the structure of soldering iron. The temperature distribution of soldering iron is analyzed with ANSYS thermal analysis module, and the corresponding conclusions are obtained by comparing the effects of soldering iron before and after improvement.