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CN-121986852-A - Wave type tea leaf rocking method and device

CN121986852ACN 121986852 ACN121986852 ACN 121986852ACN-121986852-A

Abstract

The invention relates to a wave-type tea leaf shaking method and device, which are used for controlling a shaking barrel to respectively run at four different preset speeds in four quadrant areas which the shaking barrel sequentially passes through in the process of rotating for one circle, wherein the four different preset speeds are sequentially set to be a first speed V 1 , a second speed V 2 , a third speed V 3 and a fourth speed V 4 , and V 1 >V 3 >V 4 >V 2 is used for forming wave-type speed change. The invention can reduce severe collision damage of tea in the process of shaking green, and realize soft enzymatic oxidation reaction control.

Inventors

  • WANG ZIFA
  • CHEN YINGYONG
  • MA YONGFENG
  • CHEN XIANGLONG
  • Jian Qinyang

Assignees

  • 福州市前鹏电子科技有限公司

Dates

Publication Date
20260508
Application Date
20260311

Claims (10)

  1. 1. A wave-type tea leaf shaking method is characterized in that a shaking barrel is controlled to run at four different preset speeds in four quadrant areas where the shaking barrel sequentially passes in the process of rotating for one circle, wherein the four different preset speeds are sequentially set to be a first speed V 1 , a second speed V 2 , a third speed V 3 and a fourth speed V 4 , and V 1 >V 3 >V 4 >V 2 is formed into wave-type speed change.
  2. 2. A method of rocking a leaf of formula (1) wherein during rotation of the rocking barrel from the fourth quadrant to the first quadrant, the rocking barrel is controlled to operate at a first speed V 1 to cause the leaf to be lifted to the first quadrant and to undergo a tilting motion.
  3. 3. A wavy tea leaf shaking method according to claim 1, wherein during rotation of the shaking barrel from the first quadrant to the second quadrant, the shaking barrel is controlled to operate at a second speed V 2 lower than the first speed V 1 so as to reduce collision energy loss when tea leaves fall back to the barrel wall from a high point.
  4. 4. A method of rocking a leaf of a wave-type tea according to claim 1 wherein the rocking barrel is controlled to operate at a third speed V 3 higher than the second speed V 2 during rotation from the second quadrant to the third quadrant and is controlled to operate at a fourth speed V 4 lower than the third speed V 3 during rotation from the third quadrant to the fourth quadrant.
  5. 5. A method of rocking a leaf of a wavy tea according to claim 1, wherein when the rocking barrel rotates to the starting point of the fourth, first, second and third quadrant regions, slow start times t 1 、t 2 、t 3 、t 4 are respectively provided correspondingly, so that the speed of the rocking barrel smoothly transits to a preset speed V 1 、V 2 、V 3 、V 4 of the corresponding quadrant.
  6. 6. A wave-type tea leaf shaking device for realizing the method as claimed in any one of claims 1-5, which is characterized by comprising a shaking barrel, a driving motor and a control unit, wherein the shaking barrel is cylindrical, four stop rods are arranged on the inner wall of the shaking barrel along the circumferential direction, and the control unit is electrically connected with the driving motor and used for controlling the driving motor to respectively operate at four different preset speeds in four quadrant areas in the process of shaking the shaking barrel for one circle.
  7. 7. A wavy tea leaf rocking device according to claim 6, wherein the four different preset speeds comprise a first speed V 1 for lifting the tea leaf to be thrown up, a second speed V 2 for reducing the energy of the falling collision of the tea leaf, a third speed V 3 for lifting the tea leaf again and a fourth speed V 4 for reducing the energy of the falling collision of the tea leaf again.
  8. 8. The wavy tea rocking device of claim 6, wherein the rocking barrels are respectively provided with magnetic elements on peripheral walls corresponding to positions of the four stop rods, and hall switches are arranged on the outer sides of the rocking barrels so as to change the rotation speed of the rocking barrels when the hall switches sense that the magnetic elements pass through.
  9. 9. A wave type tea rocking device according to claim 6, wherein the driving motor is one of a variable frequency control motor, a servo motor, an electromagnetic speed regulating motor or a brushless direct current motor.
  10. 10. The wave-type tea rocking device according to claim 6 is characterized by further comprising a man-machine interaction module and a communication module, wherein the man-machine interaction module is used for setting working parameters of the wave-type tea rocking device, sending the working parameters to the control unit and generating control instructions by the control unit, and the communication module is used for connecting the Internet to achieve data interaction and remote control between the control unit and a mobile terminal or a remote computer.

Description

Wave type tea leaf rocking method and device Technical Field The invention relates to the technical field of tea processing, in particular to a wave-type tea rocking method and device for tea making. Background Shaking green (also called green) is a key process for forming unique aroma and quality in the processing process of tea such as oolong tea. The existing green shaking equipment comprises a comprehensive green making machine, and single rotating speed or simple sectional variable speed control is generally adopted. In the process of shaking the green, the tea leaves are driven in the shaking barrel along with the rotation of the barrel. Through intensive research and motion analysis of a single-speed green shaking process in the prior art, when the green shaking barrel rotates at a constant speed, tea leaves can undergo two more severe collisions in one motion period, namely one inclined collision when the tea leaves are obliquely thrown from a high point and then fall back to the barrel wall, and the other collision when the tea leaves fall back along the barrel wall and then collide with a stop lever in the barrel. The two collisions can generate larger energy loss, the lost energy is converted into the internal energy of the tea, and excessive damage of cells of the tea and damage of tea branches, stems and leaves are easily caused, so that the enzymatic oxidation reaction of the tea is difficult to achieve an ideal control effect, and finally the color, the aroma and the taste of the finished tea are influenced. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a wave-type tea rocking method and device, so as to reduce severe collision damage of tea in the rocking process and realize soft enzymatic oxidation reaction control. In order to achieve the purpose, the technical scheme is that the wavy tea leaf shaking method is characterized in that a shaking barrel is controlled to run at four different preset speeds in four quadrant areas which the shaking barrel sequentially passes through in the process of rotating for one circle, and the four different preset speeds are sequentially set to be a first speed V 1, a second speed V 2, a third speed V 3 and a fourth speed V 4, wherein V 1>V3>V4>V2 is used for forming wavy speed change. Further, in the process of rotating the green rocking barrel from the fourth quadrant to the first quadrant, the green rocking barrel is controlled to operate at a first speed V 1, so that the tea leaves are lifted to the first quadrant and subjected to oblique throwing motion. Further, during the process of rotating the green rocking barrel from the first quadrant to the second quadrant, the green rocking barrel is controlled to operate at a second speed V 2 lower than the first speed V 1 so as to reduce collision energy loss when tea leaves fall back to the barrel wall from a high point. Further, the green barrel is controlled to operate at a third speed V 3 higher than the second speed V 2 during the rotation from the second quadrant to the third quadrant, and is controlled to operate at a fourth speed V 4 lower than the third speed V 3 during the rotation from the third quadrant to the fourth quadrant. Further, when the green barrel rotates to the starting point of the fourth, first, second and third quadrant regions, slow start time t 1、t2、t3、t4 is correspondingly arranged respectively, so that the speed of the green barrel is smoothly transited to the preset speed V 1、V2、V3、V4 of the corresponding quadrant. The invention also provides a wave-type tea leaf shaking device for realizing the method, which comprises a shaking barrel, a driving motor and a control unit, wherein the shaking barrel is cylindrical, four stop rods are arranged on the inner wall of the shaking barrel along the circumferential direction, and the control unit is electrically connected with the driving motor and used for controlling the driving motor to respectively operate at four different preset speeds in four quadrant areas in the process of shaking the barrel for one circle. Further, the four different preset speeds include a first speed V 1 for lifting up the tea leaves, a second speed V 2 for reducing the falling collision energy of the tea leaves, a third speed V 3 for lifting up the tea leaves again, and a fourth speed V 4 for reducing the falling collision energy of the tea leaves again. Further, the rocking barrel is provided with magnetic elements on peripheral walls corresponding to positions of the four stop rods respectively, and a Hall switch is arranged on the outer side of the rocking barrel so as to change the rotation speed of the rocking barrel when the Hall switch senses that the magnetic elements pass through. Further, the driving motor is one of a variable frequency control motor, a servo motor, an electromagnetic speed regulating motor or a brushless direct current motor. The system further comprises a man-machine interactio