Efficient black tea leaf rolling and drying device

By designing an arc-shaped kneading disc and a omnidirectional rotating kneading drum, combined with kneading brushes and pressure adjustment, the problem of insufficient precision in existing dark tea kneading devices has been solved, achieving refined kneading and improved drying efficiency, thus enhancing the quality of the tea.

CN224140078UActive Publication Date: 2026-04-21HUBEI YIDELAI BIOTECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI YIDELAI BIOTECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing black tea rolling and drying equipment, the rolling barrel is perpendicular to the rolling disc, which results in insufficient precision in the rolling process, affecting the formation of tea leaves, cell breakage rate, and fermentation effect.

Method used

A high-efficiency black tea kneading and drying device was designed. The inner cavity of the kneading disc is arc-shaped. Through the cooperation of the crank and the universal rod, the kneading barrel can rotate in all directions along the arc surface of the inner cavity of the kneading disc, which increases the rolling friction of the tea leaves and promotes cell breakage. The kneading pressure can be adjusted by the kneading brush and the pressure cover. Combined with the heating and stirring functions of the drying box, fine kneading and drying can be achieved.

Benefits of technology

This process refines the rolling process of dark tea, improves the shaping and brewing quality of the tea leaves, solves the problem of insufficient precision in the rolling process, and promotes cell breakage and drying efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224140078U_ABST
    Figure CN224140078U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of black tea leaf rolling and drying equipment, in particular to an efficient black tea leaf rolling and drying device which comprises a fixing plate, a fixing frame is fixedly connected to the top of the fixing plate, a rolling mechanism is movably installed on the top of the fixing frame, and a hopper is fixedly connected to the bottom of the fixing plate. A drying box is fixedly connected to the bottom of the hopper; the inner cavity of the rolling disc is arc-shaped, the connecting shaft is driven to rotate, the connecting shaft drives the universal rod to rotate through the crank, the universal rod circumferentially swings under the action of the spherical groove and the ball, and the universal rod drives the rolling barrel to circumferentially swing through the connecting frame, so that the rolling barrel performs universal rotating rolling along the arc surface of the inner cavity of the rolling disc; further, the rolling friction force of the tea leaves is increased in the rolling process, cell disruption is promoted, the effect that dark tea is rolled more finely is achieved, and the problem that the fineness of the rolling process is insufficient due to the fact that a rolling barrel of a dark tea rolling and drying device is perpendicular to a rolling disc is solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of black tea rolling and drying equipment, specifically a high-efficiency black tea rolling and drying device. Background Technology

[0002] The processing of dark tea requires a crucial step of kneading and drying. The principle is to use external force to make the tea leaves tightly kneaded, causing appropriate damage to the leaf tissue, thereby squeezing out the tea juice, which lays the foundation for the shape and brewing quality of the tea.

[0003] Currently, the kneading drum of existing kneading equipment is perpendicular to the kneading disc, resulting in a vertical kneading angle. However, in the traditional black tea production process, the kneading angle is a key parameter affecting the formation of tea leaves, cell breakage rate, and fermentation effect. Therefore, the existing black tea kneading and drying equipment has insufficient precision in its kneading process. Utility Model Content

[0004] To address the shortcomings of existing technologies, the fact that the kneading drum of the black tea kneading and drying device is perpendicular to the kneading disc results in insufficient precision in the kneading process, this utility model proposes a high-efficiency black tea kneading and drying device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-efficiency black tea kneading and drying device, including a fixed plate, a fixed frame fixedly connected to the top of the fixed plate, a kneading mechanism movably installed on the top of the fixed frame, a hopper fixedly connected to the bottom of the fixed plate, and a drying box fixedly connected to the bottom of the hopper;

[0006] The kneading mechanism includes a support frame, a rotating connecting shaft at the top of the support frame, a crank fixedly connected to the bottom of the connecting shaft, a universal joint rotatably connected to the bent end of the crank, a spherical groove at the top of the fixed frame, a ball rotatably connected in the spherical groove, the ball fixedly connected to the outer wall of the universal joint, a connecting frame fixedly connected to the bottom of the universal joint, a kneading barrel fixedly connected to the inner wall of the connecting frame, and a kneading disc fixedly connected to the inner cavity of the fixed frame, the inner wall of the kneading disc being arc-shaped.

[0007] Preferably, a first motor is fixedly connected to the top of the inner wall of the support frame, and the output end of the first motor passes through the support frame and is fixedly connected to a first gear.

[0008] Preferably, the first gear meshes with a second gear, which is fixedly connected to the top of the connecting shaft.

[0009] Preferably, a screw is fixedly connected to the top of the inner wall of the connecting frame, the screw extends into the inner cavity of the kneading drum, and a pressure cap is threaded onto the outer wall of the screw.

[0010] Preferably, the inner wall of the kneading disc is arc-shaped, and a kneading brush is fixedly connected to the bottom of the kneading drum, with the kneading brush in contact with the inner wall of the kneading disc.

[0011] Preferably, a bottom cover is rotatably connected to the bottom of the kneading disc at the material leakage hole, and a movable plate is slidably connected to one side of the material leakage hopper, the movable plate cooperating with the bottom cover to open and close.

[0012] Preferably, a heating tube is fixedly installed on one side of the inner wall of the drying box, and a second motor is fixedly connected to one side of the drying box. The output end of the second motor passes through the inner cavity of the drying box and is fixedly connected to a stirring shaft.

[0013] The advantages of this utility model are:

[0014] This invention utilizes the arc-shaped inner cavity of the kneading disc to drive the connecting shaft to rotate. The connecting shaft, via a crank, drives the universal joint to rotate. The universal joint oscillates in a circular motion under the action of the spherical groove and the sphere. The universal joint, through the connecting frame, drives the kneading barrel to oscillate in a circular motion, causing the kneading barrel to rotate and knead along the arc surface of the inner cavity of the kneading disc. This increases the friction of the rolling tea leaves during the kneading process, promotes cell breakage, and achieves a more refined kneading effect for dark tea. It solves the problem of insufficient precision in the kneading process caused by the kneading barrel being perpendicular to the kneading disc in dark tea kneading and drying devices. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the kneading mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the drying oven of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0020] Figure 5 This utility model Figure 2 Enlarged structural diagram of section B in the middle.

[0021] In the diagram: 1. Fixed plate; 2. Fixed frame; 3. Kneading mechanism; 301. Support frame; 302. First motor; 303. First gear; 304. Second gear; 305. Connecting shaft; 306. Crank; 307. Universal rod; 308. Spherical groove; 309. Sphere; 310. Connecting frame; 311. Kneading drum; 312. Kneading brush; 313. Kneading disc; 314. Screw; 315. Pressure cover; 4. Drying oven; 41. Heating tube; 42. Stirring shaft; 43. Second motor; 5. Fennel hopper; 51. Bottom cover; 52. Movable plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a high-efficiency black tea rolling and drying device. (Refer to...) Figures 1-5 A high-efficiency black tea kneading and drying device includes a fixed plate 1, a fixed frame 2 fixedly connected to the top of the fixed plate 1, a kneading mechanism 3 movably installed on the top of the fixed frame 2, a hopper 5 fixedly connected to the bottom of the fixed plate 1, a drying box 4 fixedly connected to the bottom of the hopper 5, the inner cavity of the kneading disc 313 is arc-shaped, and the kneading mechanism 3 tilts and swings in a circular motion to help increase the rolling friction of the tea leaves, promote cell breakage, and thus make the kneading of black tea more refined;

[0025] The kneading mechanism 3 includes a support frame 301, a rotating connecting shaft 305 at the top of the support frame 301, a crank 306 fixedly connected to the bottom of the connecting shaft 305, a universal rod 307 rotatably connected to the bent end of the crank 306, a spherical groove 308 at the top of the fixed frame 2, a ball 309 rotatably connected inside the spherical groove 308, the ball 309 fixedly connected to the outer wall of the universal rod 307, a connecting frame 310 fixedly connected to the bottom of the universal rod, a kneading drum 311 fixedly connected to the inner wall of the connecting frame 310, and a kneading disc 313 fixedly connected to the inner cavity of the fixed frame 2. The inner wall is arc-shaped. By driving the connecting shaft 305 to rotate, the connecting shaft 305 drives the crank 306 to rotate. The curved end of the crank 306 tilts and moves in a circular motion, causing the universal rod 307 to swing in a circular motion. The universal rod 307 is stably tilted and swung in a circular motion through the spherical groove 308 and the ball 309 on the fixed frame 2. The connecting frame 310 follows the tilted and swung in a circular motion with the universal rod 307. The kneading drum 311 follows the tilted and swung in a circular motion with the connecting frame 310, so that the kneading drum 311 can fit into the arc-shaped surface of the kneading disc 313 for kneading, thereby achieving the purpose of kneading black tea more finely.

[0026] Reference Figure 1 , Figure 2 and Figure 4 A first motor 302 is fixedly connected to the top of the inner wall of the support frame 301. The output end of the first motor 302 passes through the support frame 301 and is fixedly connected to a first gear 303. The first gear 303 meshes with a second gear 304. The second gear 304 is fixedly connected to the top of the connecting shaft 305. A screw 314 is fixedly connected to the top of the inner wall of the connecting frame 310. The screw 314 passes through the inner cavity of the kneading drum 311. A pressure cover 315 is threaded onto the outer wall of the screw 314. The inner wall of the kneading disc 313 is arc-shaped. A kneading brush 3 is fixedly connected to the bottom of the kneading drum 311. 12. The kneading brush 312 contacts the inner wall of the kneading disc 313. The first motor 302 drives the first gear 303 to rotate, and the first gear 303 drives the second gear 304 to rotate, so that the connecting shaft 305 can rotate stably with the second gear 304. By rotating the pressure cover 315, the pressure is located above and below the inner cavity of the kneading barrel 311 under the action of the screw 314. The kneading brush 312 follows the movement of the kneading barrel 311 and cleans along the arc surface of the kneading disc 313, so that the pressure cover 315 can adjust the kneading pressure of the black tea leaves in the kneading barrel 311.

[0027] Reference Figure 2 , Figure 3 and Figure 5A bottom cover 51 is rotatably connected to the bottom of the kneading disc 313 at the material leakage hole. A movable plate 52 is slidably connected to one side of the material leakage hopper 5. The movable plate 52 and the bottom cover 51 cooperate to open and close. A heating tube 41 is fixedly installed on one side of the inner wall of the drying chamber 4. A second motor 43 is fixedly connected to one side of the drying chamber 4. The output end of the second motor 43 passes through the inner cavity of the drying chamber 4 and is fixedly connected to the stirring shaft 42. By pulling the movable plate 52, the movable plate 52 slides to the outside of the material leakage hopper 5. When the movable plate 52 is separated from the bottom cover 51, the bottom plate flips downward under the action of gravity, so that the tea leaves in the kneading disc 313 can enter the drying chamber 4 through the material leakage hopper 5. The heating tube 41 in the drying chamber 4 heats and dries the tea leaves. At the same time, the second motor 43 drives the stirring shaft 42 to stir the black tea leaves, accelerating the drying of the black tea leaves. Working principle: During use, the kneading drum 311 of the kneading mechanism 3 cooperates with the kneading disc 313 inside the cavity of the fixed plate 1 for kneading. The first motor 302 drives the first gear 303 to rotate, which in turn drives the second gear 304 to rotate. The second gear 304 drives the connecting shaft 305 to rotate on the support frame 301. The crank 306 follows the rotation of the connecting shaft 305 and drives the universal rod 307 to move in a inclined circular motion. The universal rod 307 is stably tilted and rotated in a circular motion through the cooperation of the spherical groove 308 and the ball 309 on the fixed frame 2. The connecting frame 310 follows the tilted circular motion of the universal rod 307 and drives the kneading drum 311 to move in a tilted circular motion, thus kneading the arc surface of the kneading disc 313. The kneading drum 311 is fitted to the arc-shaped surface of the kneading disc 313 for kneading, while the kneading brush 312 is fitted to the arc-shaped surface of the kneading disc 313 for cleaning. The pressure cover 315 is rotated, and the pressure cover 315 moves up and down on the outer wall of the screw 314, so that the pressure cover 315 can adjust the kneading pressure of the black tea leaves in the kneading drum 311. After kneading, the movable plate 52 is pulled, and the movable plate 52 separates from the bottom cover 51, so that the bottom cover 51 flips downward under the action of gravity, so that the black tea leaves in the kneading disc 313 fall into the drying box 4 through the hopper 5. The heating tube 41 on the side wall of the drying box 4 heats and dries the tea leaves, while the second motor 43 drives the stirring shaft 42 to stir and turn the black tea leaves, accelerating the drying of the tea leaves.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-efficiency black tea kneading and drying device, characterized in that: Includes a fixed plate (1), a fixed frame (2) is fixedly connected to the top of the fixed plate (1), a kneading mechanism (3) is movably installed on the top of the fixed frame (2), a hopper (5) is fixedly connected to the bottom of the fixed plate (1), and a drying box (4) is fixedly connected to the bottom of the hopper (5). The kneading mechanism (3) includes a support frame (301), the top of the support frame (301) is rotatably connected to a shaft (305), the bottom of the shaft (305) is fixedly connected to a crank (306), the curved end of the crank (306) is rotatably connected to a universal rod (307), the top of the fixed frame (2) is provided with a spherical groove (308), a ball (309) is rotatably connected in the spherical groove (308), the ball (309) is fixedly connected to the outer wall of the universal rod (307), the bottom of the universal rod is fixedly connected to a connecting frame (310), the inner wall of the connecting frame (310) is fixedly connected to a kneading drum (311), and the inner cavity of the fixed frame (2) is fixedly connected to a kneading disc (313), the inner wall of the kneading disc (313) is arc-shaped.

2. The high-efficiency black tea rolling and drying device according to claim 1, characterized in that: The top of the inner wall of the support frame (301) is fixedly connected to a first motor (302), and the output end of the first motor (302) passes through the support frame (301) and is fixedly connected to a first gear (303).

3. The high-efficiency black tea rolling and drying device according to claim 2, characterized in that: The first gear (303) meshes with the second gear (304), and the second gear (304) is fixedly connected to the top of the connecting shaft (305).

4. The high-efficiency black tea rolling and drying device according to claim 1, characterized in that: The connecting frame (310) has a fixed connecting screw (314) on the top of its inner wall. The screw (314) extends into the inner cavity of the kneading drum (311). A pressure cap (315) is threaded onto the outer wall of the screw (314).

5. The high-efficiency black tea rolling and drying device according to claim 1, characterized in that: A kneading brush (312) is fixedly connected to the bottom of the kneading drum (311), and the kneading brush (312) is in contact with the inner wall of the kneading disc (313).

6. The high-efficiency black tea rolling and drying device according to claim 1, characterized in that: The bottom cover (51) is rotatably connected to the bottom of the kneading disc (313) at the material leakage hole, and the movable plate (52) is slidably connected to one side of the material leakage hopper (5). The movable plate (52) and the bottom cover (51) cooperate to open and close.

7. The high-efficiency black tea rolling and drying device according to claim 1, characterized in that: A heating tube (41) is fixedly installed on one side of the inner wall of the drying box (4), and a second motor (43) is fixedly connected to one side of the drying box (4). The output end of the second motor (43) extends through the inner cavity of the drying box (4) and is fixedly connected to a stirring shaft (42).