METHOD FOR FINE ROLLING FOR GREEN TEA MANUFACTURING

• Main Author: MIMORI TAKASHI
• Format: Patent
• Language: English
• Published: 28.05.1996
• Edition: 6
• Subjects: COFFEE; FOODS OR FOODSTUFFS; HUMAN NECESSITIES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF; TEA; THEIR SUBSTITUTES; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

PURPOSE: To enable the usual weight control according to the properties of green tea leaves, the reduction in load on an operator and automation of a fine rolling step by automatically controlling the position of weight in a machine for fine rolling for green tea manufacturing according to the amplitude of the vertical movement and a tilt angle of a weight lever. CONSTITUTION: The position of a weight is automatically controlled with the amplitude of vertical movement and tilt angle of a weight lever 6 in a machine for fine rolling for green tea manufacturing. Specifically, e.g. the green tea leaves are thrown in the fine rolling machine for green tea manufacturing, dried and treated by reshaping between a rolling board 1 heated with a burner 2 and a rolling pressurizing board 3. In the process, the amplitude of the vertical movement and tilt angle of the weight lever 6 are measured with a laser displacement gauge 9 to successively transfer the measured values to a weight controller 10. The transferred measured values are computed with the weight controller 10 and compared with the previously programmed target values of the amplitude and tilt angle of weight lever 6. The weight 5 is then moved to the next position when the deviation of the target values from the present value become negative. The weight 5 is further successively moved according to the program to complete the fine rolling step when the weight 5 reaches the rear end of the weight lever 6.