When the throughput of a single passage S-shaped elevator in a carton conveying system exceededrn50 cartons/minute, a series of problems might occur, including: accelerated chain plate wear, carton cornerrncrease, BOPP film scratch, high carton breakage, etc. Therefore, a dual-passage ultrahigh-speed carton elevatorrnwas designed on the basis of single passage S-shaped elevator, wherein carton and conveying chain plate movedrnin the same direction to minimize the sliding friction between carton and the surface of rollers and chain plates.rnThe results of application showed that carton conveying was stable and reliable, the maximum conveyingrncapacity of elevator increased from 50 to 100 cartons/minute, the working life of chain plate prolonged fromrn2-3 to 5-6 years, while the proportion of cartons with the said defects decreased from 5%-7% to less than 0.5%.%当条烟输送系统中的单道S型提升机的输送能力＞50条/min时,容易导致链板磨损加快、条烟折角、表面BOPP薄膜划痕、条烟破损率高等问题,无法满足超高速包装机组的生产输送需求,为此对条烟提升机进行了改进.在单道S型提升机条烟平条进烟、平条出烟方式的基础上,设计了双通道超高速条烟提升机,实现了条烟与输送链板运动方向的一致,减少了条烟在滚轮和链板上表面的滑动摩擦.应用效果表明,条烟输送稳定可靠,提升机最大输送能力由50条/min提高到100条/min,链板使用寿命由2～3年提高到5～6年,条烟折角、表面BOPP薄膜划痕、破损等缺陷由5％～7％降低到0.5％以下,提高了条烟输送能力和产品质量.
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