Tea twisting machine
By designing an orderly tea-rubbing machine and using a combination of small and large rolling rollers, the problem of surface damage caused by disordered overlapping of tea leaves was solved, thus achieving high-quality processing of high-grade tea.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-07
AI Technical Summary
Existing tea-rolling devices cause disordered overlapping of tea leaves during processing, resulting in surface damage and affecting the appearance and quality of the tea, making them particularly unsuitable for processing high-grade teas.
Design a tea-rubbing machine that uses several small knurled rollers arranged horizontally with increased spacing, combined with a mesh knurled roller and a conveyor belt. The machine drives the tea leaves to be arranged in an orderly manner by a motor, and uses the cooperation of the large roller and the medium knurled roller to adjust the kneading force, so as to retain only the core of the tea leaves.
It achieves orderly arrangement and delicate kneading of tea leaves, effectively removing outer leaves and improving the quality and appearance of tea, making it suitable for processing high-end teas.
Smart Images

Figure CN224084592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tea-rubbing machine, mainly in the field of tea processing, especially green tea processing. Background Technology
[0002] Currently, the tea-making process is as follows: (1) First, before dawn, go to the tea field to pick tea, only taking the tender parts; (2) Spread out the tea leaves picked in the morning to remove the water vapor and grassy smell from the leaves; (3) Next is the fixation step, where the dried tea leaves are placed in a professional tool and rubbed; (4) After continuous rubbing, the tea leaves become small and pointed on both sides; (5) Steam the rubbed tea leaves to release their aroma, evaporate the water vapor, and dry them for preservation. This utility model mainly relates to steps (3) and (4) above, and its main purpose is to remove the larger outer leaves and rough parts of the tea leaves, leaving only the tea core, and making the leaves small and delicate.
[0003] Patent document No. 201811107178.0 discloses a small-scale automatic tea-making device, including a tea-making base, a tea-making box with through holes, and a tea-pressing lid. The tea-pressing lid is installed inside the tea-making box. The tea-making base includes a base plate, a top plate, and four support rods. The four corners of the base plate and the four corners of the top plate are detachably connected by the support rods. The tea-making box is slidably installed inside the tea-making base. A lead screw is rotatably installed between two of the support rods. One end of the lead screw passes through the support rod and is connected to a fixed motor. The motor is also connected to a power source. A forward and reverse switch is provided between the motor and the power source. This device solves the need for homemade tea processing equipment in households and simplifies the complex traditional tea-making device. Tea can be shaped simply by sliding the tea-making box back and forth. The design of the motor and lead screw enables the device to automatically make tea. Although this patent can remove the rough parts of the tea leaves, during the processing, the tea leaves are disorderly and overlapping, and there is also disorderly kneading between the tea leaves and between the tea leaves and the machinery. This causes damage to the surface of the tea leaves, or even inadequate kneading, resulting in poor appearance of the tea leaves. Some outer leaves cannot be removed, some are not kneaded properly, and some are incomplete, which affects the quality of the tea leaves. Therefore, the above patent is only applicable to the processing of low- to medium-grade tea leaves. Summary of the Invention
[0004] The purpose of this invention is to provide a tea-rubbing machine that, during the deep processing of tea, enables tea leaves to be arranged in an orderly manner, reduces overlapping, effectively removes outer leaves, retains the leaf core, makes the rubbing process more refined, and improves the quality of tea processing.
[0005] The technical solution adopted by this utility model is as follows: a tea-rubbing machine, comprising a machine body, characterized in that a plurality of small knurled rollers are provided at one end of the machine body, the plurality of small knurled rollers are arranged horizontally among each other, the spacing between them increasing sequentially, and all the plurality of small knurled rollers are driven by a motor; a plurality of large rollers and medium knurled rollers are provided at the other end of the machine body, the axis of the large rollers and medium knurled rollers is lower than that of the small knurled rollers, and the small knurled rollers, large rollers and medium knurled rollers are arranged in a stepped manner on the machine body; a conveyor belt is provided at the lower part of the small knurled rollers, large rollers and medium knurled rollers, the conveyor belt is driven by a motor through a rotating shaft; the large rollers and medium knurled rollers are on the same shaft, the medium knurled rollers are driven by a motor through a rotating shaft to rotate slowly counterclockwise, the large rollers are mounted on the rotating shaft through bearings, the large rollers are tangential to the conveyor belt and are driven by the conveyor belt to rotate rapidly clockwise.
[0006] The tea-rubbing machine is characterized in that it further includes a feeding device, which is disposed on one side of the small knurling roller and located above the small knurling roller.
[0007] The tea-rubbing machine is characterized in that the small knurled roller is a mesh knurled roller.
[0008] The tea-rubbing machine is characterized in that the large roller is a knurled roller or a brush-knurled roller.
[0009] The present invention has the following advantages: First, several small knurling rollers are arranged horizontally with increasing spacing between them. When tea leaves enter the small knurling rollers, they are driven forward sequentially by the mesh pattern. When they reach the first gap between the small knurling rollers, tea leaves with a width smaller than the first gap will fall vertically and lie flat on the conveyor belt. When the remaining tea leaves reach the second gap between the small knurling rollers, the above operation is repeated, so that all the tea leaves are arranged vertically in an orderly manner and only one layer of tea leaves is retained. Second, when the tea leaves reach the middle knurling roller, the gap between the middle knurling roller and the conveyor belt can be adjusted according to the thickness of the tea leaves and by adjusting the diameter of the large roller. This allows for control of the kneading force between the tea leaves, the middle knurling roller, and the conveyor belt, ensuring that only the larger outer leaves are kneaded and removed, leaving only the leaf core. This prevents the tea leaves from being crushed against each other, which could damage or deform the tea leaves. As a result, the tea produced is of high quality, exquisite, and beautiful. Attached Figure Description
[0010] Figure 1 This is a top view of the present invention.
[0011] Figure 2 This is a utility model Figure 1 BB cross-section diagram.
[0012] Figure 3This is a schematic diagram of the coaxial connection between the knurled roller and the large roller in this utility model.
[0013] The numbers in the diagram represent: 1. Medium knurled roller; 2. Motor 2; 3. Conveyor belt; 4. Feeding device; 5. Small knurled roller; 6. Motor 1; 7. Shaft 1; 8. Motor 3; 9. Machine body; 10. Shaft 2; 11. Bearing; and 12. Large roller. Detailed Implementation
[0014] The technical solution of this utility model will be fully described below with reference to specific embodiments. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0015] Reference Figure 1 , Figure 2 and Figure 3 This tea-rubbing machine includes a body 9. At one end of the body 9 are several small knurled rollers 5, each a knurled mesh roller. These small knurled rollers 5 are horizontally arranged, with the spacing increasing progressively, ranging from 5mm to 12mm. All small knurled rollers 5 are driven by a motor 6. At the other end of the body 9 are several large rollers 12 and medium knurled rollers 1. The medium knurled rollers are either knurled mesh rollers or brush knurled rollers. The large rollers 12 are ordinary rollers. The axial positions of the large rollers 12 and medium knurled rollers 1 are lower than the small knurled rollers 5. The small knurled rollers 5, large rollers 12, and medium knurled rollers 1 are arranged in a stepped manner on the body 9. At the lower part of the small knurled rollers 5, large rollers 12, and medium knurled rollers 1 are... The conveyor belt 3 is driven by the motor 8 through the shaft 7; the large roller 12 and the medium knurled roller 1 are on the same shaft 10. The medium knurled roller 1 is driven by the motor 2 through the shaft 10 to rotate slowly counterclockwise. The large roller 12 is mounted on the shaft 10 through the bearing 11. The large roller 12 is cut off from the conveyor belt 3 and is driven by the conveyor belt 3 to rotate quickly clockwise; the feeding device 4 is set on one side of the small knurled roller 5 and located above the small knurled roller 5.
[0016] In use, firstly, several small knurling rollers 5 are arranged horizontally, with the spacing between them increasing sequentially. When tea leaves enter the small knurling rollers 5, they are driven forward sequentially by the mesh pattern. When they reach the first gap between the small knurling rollers 5, tea leaves with a width smaller than the first gap will fall vertically and lie flat on the conveyor belt 3. When the remaining tea leaves reach the second gap between the small knurling rollers 5, the above operation is repeated, so that all the tea leaves are arranged vertically in an orderly manner and only one layer of tea leaves is retained. Secondly, when the tea leaves reach the lower part of the middle knurling roller 1, the mesh or brush on the middle knurling roller 1 rubs the tea leaves. The gap between the middle knurling roller 1 and the conveyor belt 3 can be adjusted according to the thickness of the tea leaves by adjusting the diameter of the large roller 12, so as to control the rubbing force between the tea leaves, the middle knurling roller 1, and the conveyor belt 3. Only the larger outer leaves are rubbed and removed, leaving only the leaf core, without causing mutual crushing between the tea leaves, which would damage or deform the tea leaves. In this way, the tea leaves produced are of good quality, exquisite and beautiful.
Claims
1. A tea-rubbing machine, comprising a body, characterized in that: Several small knurled rollers are arranged horizontally at one end of the machine body, with the spacing between them increasing sequentially. All the small knurled rollers are driven by motor one. Several large and medium knurled rollers are arranged at the other end of the machine body. The axis of the large and medium knurled rollers is lower than that of the small knurled rollers. The small knurled rollers, large and medium knurled rollers are arranged in a stepped manner on the machine body. A conveyor belt is provided below the small, large and medium knurled rollers. The conveyor belt is driven by motor three through shaft one. The large and medium knurled rollers are on the same shaft. The medium knurled roller is driven by motor two through shaft two to rotate slowly counterclockwise. The large roller is mounted on shaft two through bearings. The large roller is tangent to the conveyor belt and is driven by the conveyor belt to rotate quickly clockwise.
2. The tea-rubbing machine according to claim 1, characterized in that: It also includes a feeding device, which is located on one side of the small knurling roller and above the small knurling roller.
3. A tea-rubbing machine according to claim 1, characterized in that: The small knurled roller is a knurled roller with a reticular pattern.
4. A tea-rubbing machine according to claim 1, characterized in that: The large roller is a knurled roller or a brush knurled roller.
Citation Information
Patent Citations
Small automatic tea rubbing device
CN109221462A