摘要
针对现有茶叶理条压扁机存在的工序不连续、自动化程度低及缺乏自动加压系统等问题,依据扁形茶的工艺参数要求,以PLC为核心控制器,成功研制了一套扁形茶自动化理条压扁机。该机集成了传动、投料、理条与压扁等控制模块,实现了对质量、温度、时间等的闭环控制与整机联动运行。以绿茶为试验材料,采用单因素试验法,以直条率与完整度为评价指标。结果表明,该机的最佳工艺参数为投入量400 g、理条压扁温度200℃、理条压扁时间570 s、振动频率45 Hz。该设备能有效降低劳动强度,显著提升生产效率与茶叶品质。
Aiming at the problems of discontinuous processes,low automation,and lack of an automatic pressure system in the exist⁃ing tea straightening and flattening machine,an automatic flat tea straightening and flattening machine was successfully developed with a PLC as the core controller,based on the process parameters requirements for flat tea.This machine integrated control modules for transmission,feeding,straightening,and flattening,achieving closed-loop control of mass,temperature,time,and the coordinat⁃ed operation of the entire machine.Using green tea as the test material and the straight strip rate and integrity as evaluation indices,a single-factor experiment was conducted.The results showed that the optimal process parameters for this machine were a feeding quanti⁃ty of 400 g,a straightening and flattening temperature of 200℃,a straightening and flattening time of 570 s,and a vibration frequen⁃cy of 45 Hz.The equipment effectively reduced labor intensity and significantly improved production efficiency and tea quality.
作者
周晓晖
张涛
佘小明
曹中华
唐兴隆
ZHOU Xiao-hui;ZHANG Tao;SHE Xiao-ming;CAO Zhong-hua;TANG Xing-long(Institute of Agricultural Machinery Research,Chongqing Academy of Agricultural Sciences,Chongqing 401329,China;Institute of Agricultural Engineering,Chongqing Academy of Agricultural Sciences,Chongqing 401329,China)
出处
《湖北农业科学》
2025年第11期189-194,202,共7页
Hubei Agricultural Sciences
基金
重庆市科研机构绩效激励引导专项(CSTB2023JXJL-YFX0005)
重庆市技术创新与应用发展专项面上项目(CSTB2024TIAD-GPX0037)。
关键词
扁形茶
自动化理条压扁机
设计
工艺优化
绿茶
flat tea
automatic straightening and flattening machine
design
process optimization
green tea
