牙刷真空吸塑包装在自动机生产上的焊接合格率提升方法研究

发布时间：2018-11-03 08:45

【摘要】：真空吸塑包装在国内牙刷品牌上的应用十分普遍,这种方式从包装的美观性和保护的有效性、包装的成本、生产的普及型和便利性、包装工艺的自动化程度等各个方面的综合表现十分突出。中山某大型的牙刷生产企业在采用牙刷全自动焊接生产工艺生产过程中,遇到最大的问题就是吸塑油背卡的焊接问题,该项目的研究目标是帮助该企业将焊接合格率从目前的90-95%提升至99.9%。牙刷真空吸塑包装的焊接效果由生产过程中采用的原材料和生产工艺两大方面所决定。原材料包括纸张、油墨、吸塑油和塑料片材。生产工艺包括吸塑油背卡的印刷和涂布工艺,以及牙刷生产企业的焊接工艺。目前的研究主要集中在吸塑产品采用的纸张、油墨、吸塑油以及塑料片材的性能调整,但对吸塑产品生产工艺的研究寥寥无几。本课题主要研究,当各包装材料性能稳定的情况下,吸塑油的涂布工艺和牙刷生产的全自动焊接工艺对其焊接合格率高低的影响。实验证明,由于吸塑油背卡存在一定的保质期,吸塑的焊接效果会在吸塑油背卡储存一定时间之后出现明显下降。不同企业不同品牌不同种类的吸塑油保质期是存在差异的,企业可通过人工加速老化试验进行测试并可以通过吸塑剥离强度的力值变化进行验证。吸塑油的涂布过程中,二次涂布可明显提高吸塑油背卡的抗老化性能,帮助企业达到更高的焊接合格率水平。在稳定的吸塑油涂布工艺下,牙刷生产企业可以通过控制全自动真空焊接机器的温度、压力和时间达到稳定的焊接合格率水平。通过单因素分析和正交实验分析可得出,这几个因素对吸塑剥离强度的影响优先次序为,焊接边宽度、焊接时间、温度、压力。最佳焊接效果的工艺条件是,焊接边宽度6mm,热封保压时间1.7s、热封温度为190℃和热封压力180KPa。在保持焊接边7mm不变的情况下,为提升产能可将热封保压时间调整至1.3s、热封温度调整至160℃和热封压力调整至210KPa,吸塑剥离强度和焊接合格率依然可以得到保证,可为企业提升产能17%。这些结论在中山该牙刷生产企业的实际生产中得以验证,焊接合格率达到项目目标值99.9%。水性吸塑油和PET塑料片材因其良好的环保性能是未来材料的发展方向。当材料发生升级换代时候,其对焊接合格率的影响可以采取本文研究成果进行判定。
[Abstract]:Vacuum plastic packaging is widely used in domestic toothbrush brands. This method includes the beauty of packaging and the effectiveness of protection, the cost of packaging, the popularity and convenience of production. Packaging process automation and other aspects of the comprehensive performance is very prominent. The biggest problem encountered by a large toothbrush manufacturer in the production process of fully automatic welding of toothbrushes is the welding of suction oil back cards. The goal of the project is to help the company raise the welding pass rate from the current 90-95% to 99. 9%. The welding effect of vacuum suction packaging of toothbrush is determined by raw materials and production process. Raw materials include paper, ink, plastic oil and plastic sheets. The manufacturing process includes printing and coating process of absorbent oil back card and welding process of toothbrush manufacturer. At present, the research mainly focuses on the performance adjustment of paper, ink, absorbent oil and plastic sheet used in absorbent products, but the research on the production technology of absorbent products is very few. This paper mainly studies the influence of coating technology of absorbent oil and automatic welding process of toothbrush on the welding qualification rate when the performance of each packing material is stable. The experimental results show that the welding effect of the absorbent oil back card will decrease obviously after a certain period of storage due to the existence of a certain shelf life of the absorbent oil back card. The shelf life of different brands and different kinds of absorbent oil is different. The enterprises can be tested by artificial accelerated aging test and verified by the change of the force value of the absorptive stripping strength. In the process of coating the absorbent oil, the secondary coating can obviously improve the anti-aging performance of the absorbent oil back card, and help the enterprise to reach a higher level of welding qualification rate. Under the stable plastic oil coating process, the toothbrush manufacturer can control the temperature, pressure and time of the automatic vacuum welding machine to achieve a stable welding pass rate level. Through single factor analysis and orthogonal experiment, it can be concluded that the influence of these factors on the exfoliation strength is as follows: welding edge width, welding time, temperature and pressure. The optimum welding conditions are as follows: width of welding edge is 6mm, holding time of heat seal is 1.7 s, sealing temperature is 190 鈩，

本文编号：2307288