Improvement and testing for the washboard of Enshi Yulu tea fine rolling machine

doi:10.14088/j.cnki.issn0439-8114.2025.03.026

Abstract

Abstract: In response to the common problems of high breakage rate and flattened appearance in the mechanized shaping of Enshi Yulu tea, this study focused on the commonly used shaping equipment 60K-S fine rolling machine for Enshi Yulu tea mechanized production. Three different types of washboards were designed, optimized, and tested in production. The results showed that the third washboard had the best shaping effect, with a tooth height of 7 mm, a rounded tooth corner of 2.0 mm, and a rounded tooth groove corner of 3 mm. The triangular teeth in the middle of the washboard were changed to round straight strips.The changes in the structure of the washboard had a significant impact on shape and fragmentation, but had a relatively small impact on clarity and color. Reducing the height of the washboard teeth, increasing the rounded corners of the rubbing teeth, and adding rounded tooth grooves had a significant impact on the crushing of tea leaves, resulting in more uniform tea leaves and less breakage.

Key words: Enshi Yulu tea, tea, fine rolling machine, shape making, washboard, improvement, test

CLC Number:

S231

ZHOU Yang, ZHANG Qiang, GAO Shi-wei, CUI Qing-mei, LIANG Jin-bo, HUANG Zhong-hao. Improvement and testing for the washboard of Enshi Yulu tea fine rolling machine[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(3): 162-166.

References

[1] 杨胜伟. 恩施玉露[M].北京:中国农业出版社,2021.
[2] 孙锐,刘馨秋.恩施玉露制作技艺的发展及其价值探析[J].中国茶叶, 2023,45(2):54-61.
[3] 崔清梅, 张强, 梁金波, 等. 恩施玉露品质现状分析[J]. 中国茶叶, 2020, 42(2): 40-45.
[4] DB42/T611—2023,恩施玉露加工技术规程[S].
[5] 胡兴明, 陈根生, 尹军峰, 等.恩施州“一红一绿”茶业发展概况与对策探析[J].中国茶叶,2023,45(1):65-69.
[6] 余志, 郭栓喜, 李琛,等.恩施玉露茶机械化加工做形工艺的优化[J]. 华中农业大学学报,2016,35(1):126-130.
[7] 郭栓喜, 朱宏凯, 艾仄宜,等.机制恩施玉露茶固形工艺优化研究[J]. 湖北民族学院学报(自然科学版),2014,32(3): 252-254.
[8] 崔清梅,张强,梁金波,等. 恩施玉露茶适制品种筛选研究[J]. 中国茶叶, 2021, 43(3): 37-42.
[9] 叶飞,高士伟,张强,等. 恩施玉露茶精揉做形工艺的响应面法优化[J]. 湖北农业科学, 2014,53(2):350-354.
[10] 周洋, 张强, 崔清梅,等. 恩施玉露滚筒式整形上光机的研制与试验[J]. 中国农机化学报, 2019, 40(1): 56-60.
[11] 赵瑶,封雯,贺勇,等.针形名优绿茶固形机的研制与固形工艺优化[J].华中农业大学学报,2014,33(2):116-122.
[12] 林义生,林成智,丁天铎,等. 一种茶叶精揉机及无人化制茶机[P].中国专利:101658214B,2012-01-11.
[13] 张强,侯伟华,梁金波,等.川崎60K-S精揉机在恩施玉露加工中的应用技术研究[J].中国茶叶,2012,34(7):18-19.
[14] 叶飞,高士伟,龚自明,等.做形工艺对恩施玉露干茶色泽及汤色的影响[J].湖南农业大学学报(自然科学版),2013,39(1):91-94.
[15] 张宴志, 张家恒. 一种茶叶塑形用精揉机及其使用方法[P].中国专利:117530345A,2024-02-09.
[16] 章军,李源泽,车文亮.一种精揉机自动分配称量系统[P].中国专利:113508853B,2024-03-22.
[17] GB/T 23776—2018, 茶叶感官审评方法[S].