Two-degree-of-freedom round vibrating screen special for tea making

Abstract

The invention discloses a two-degree-of-freedom round vibrating screen special for tea making. The round vibrating screen comprises upright posts, a support frame, an intermittent swing driving device, hanging springs, a screen drum, a vertical vibration excitation device, an undersize material box, an oversize material box and a material box seat. The support frame is fixedly arranged on the top ends of the upright posts, the intermittent swing driving device is arranged on the support frame, the intermittent swing driving device is connected with the screen drum through the hanging springs, the vertical vibration excitation device is positioned below the support frame, the oversize material box is an annular container, the oversize material box is sleeved on the outside of the undersize material box, and the oversize material box and the undersize material box are both arranged on the material box seat. The round vibrating screen disclosed by the invention not only can vibrate in a straight and reciprocating mode in the vertical direction, but also can move around a vertical axis in an intermittent swing mode, the sieving efficiency is high, moreover movement parameters in the two-degree-of-freedom directions can be adjusted, and the adaptability is strong. The round vibrating screen disclosed by the invention also has the advantages of stable and reliable quality, less occupation space of equipment, convenient operation and maintenance, and the like.

Description

Technical field [0001] The invention relates to a tea processing machine, in particular to a two-degree-of-freedom circular vibrating screen special for tea making. Background technique [0002] Pu'er tea is made by processing the fresh leaves of large-leaf tea trees in Yunnan as raw materials. The production of loose Pu'er tea needs to be finalized, rolled, and dried to make sun-dried green hair tea. The processing of sun-dried green hair tea includes curing, rolling, drying and sieving. There are four processes; the cooked tea needs to be piled, dried and sieved in moderate tide. Sieving is an indispensable and important process in the production of Pu'er tea. The screening of Pu'er tea is generally divided into wool sieve and re-screening. The purpose of wool sieve is to give full play to the economic value of raw materials and reduce agglomeration during fermentation. After sorting, the tea is fermented and then re-screened after fermentation. , Through the re-screening to ...

AI Technical Summary

Problems solved by technology

However, the manual operation of the circular screen is labor-intensive, the efficiency is extremely low, and the screening quality is unstable.

[0004] In addition, in the production process of other types of tea, it is also necessary to use circular vibrating screens to classify tea leaves. However, the existing tea vibrating screens are single-degree-of-freedom vibrating screens, and the screening efficiency is low. The improvement of tea sieving quality by such methods is very limited. Therefore, it is necessary to increase the freedom of movement of the tea vibrating screen and simulate the action of manual sieving tea. It is possible to design a vibrating machine with reciprocating vibration in the vertical direction and intermittent movement around the vertical axis. Two-degree-of-freedom circular vibrating sieve for tea making

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