Authors

Abstract

Aiming at the problems of insufficient machinery for dried chili segmenting, as well as low working efficiency and high damage rate of the existing segmenting machines, a rotary cutter-type dried chili segmenting machine was designed. The working mechanism of cooperative cutting by the rotary cutter and the drum was elaborated, and the structural parameters were determined according to the movement characteristics of the rotary cutter and actual operational requirements. Three factors affecting the chili segmenting efficiency were identified, namely rotary cutter speed, drum speed and conveyor belt speed. Taking the qualification rate and damage rate of chili segmenting as the experimental indicators, the experimental design and data processing were carried out by using Design-Expert 13 software. The influence laws of the experimental factors on the segmenting qualification rate and damage rate were clarified, a regression model between the experimental indicators and the influencing factors was established, and the optimal parameter combination was determined. The experimental results showed that when the rotary cutter speed was 51 r/min, the conveyor belt speed was 0.6 m/s and the drum speed was 51 r/min, the damage rate of the device was 1.42% and the qualified rate was 98.21%, which met the industry standards. This research can provide a reference for the research on the technology and equipment of rotary cutter-type dried chili segmenting machines.

Abstract in Chinese

针对干辣椒切段机械匮乏且现存切段机工作效率低、破损率高等问题，设计了一种滚刀式干辣椒切段机，阐述了滚刀与滚筒配合切割的工作机理，并根据滚刀的运动特点和实际需要得出结构参数。确定了影响辣椒切段效率的三个因素：滚刀转速、滚筒转速、传送带带速，以辣椒切段合格率和破损率作为试验指标，通过Design-expert13软件进行试验设计及数据处理，明确了试验因素对切段合格率、破损率的影响规律，建立了试验指标与影响因素之间的回归模型，并确定了最优参数组合。试验结果表明，当滚刀转速为51r/min，传送带速度为0.6m/s，滚筒的转速为51r/min时，装置损伤率为1.42％，脱净率为98.21％，符合行业标准。该研究可为滚刀式干辣椒切段机技术与装备研究提供参考。