关键词: 恩施玉露茶, 茶叶, 精揉机, 做形, 搓板, 改进, 测试

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