Drum-type tea fixation machine

Abstract

The utility model discloses a drum-type tea leaf fixation machine which comprises a drum assembly, the drum assembly comprises an inner drum body and an outer drum body sleeved on the outer wall of the inner drum body, a mounting area is formed between the outer wall of the inner drum body and the inner wall of the outer drum body, and a heating wire is arranged in the mounting area; heat generated by the heating wire can be transmitted to the inner barrel through the wall surface of the inner barrel, the wall of the inner barrel is rapidly heated, external high-temperature gas is introduced into the gas inlet pipe, enters the conveying channel in the stirring shaft through the gas inlet pipe, then is conveyed to the fixed pipe and flows out of the inner barrel, and the gas is heated from the inside of the inner barrel, so that the stirring effect is improved. Double heating is formed by conducting heat with the wall surfaces of the heating wires, so that the uniformity of heat distribution is remarkably improved, the tea leaves are uniformly heated inside and outside, and the uniformity of fixation is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of tea production technology, and in particular to a drum-type tea fixing machine. Background Technology

[0002] The process of fixing tea leaves involves using high temperatures to destroy and deactivate the oxidase activity in fresh tea leaves, inhibiting the enzymatic oxidation of tea polyphenols and other substances in the fresh leaves, evaporating some of the moisture in the fresh leaves, making the tea leaves softer and easier to roll and shape, while also removing the grassy smell and promoting the formation of a good aroma.

[0003] The heating elements of existing drum-type tea fixing machines are installed in a single location and cannot fully cover the drum. This results in a temperature difference between the inside and outside of the drum, causing uneven heating of the tea leaves during fixing. Some tea leaves are over-fixed while others are under-fixed, which seriously affects the quality of the tea. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A tea drum-type fixation machine includes:

[0006] A roller assembly, comprising an inner cylinder and an outer cylinder sleeved on the outer wall of the inner cylinder, wherein an installation area is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, and a heating wire is provided in the installation area;

[0007] The rotating assembly includes a fixed pipe rotatably inserted into the inner cylinder, an air inlet pipe rotatably inserted into the fixed pipe, and multiple sets of stirring shafts disposed on the fixed pipe. The stirring shafts have a conveying channel inside, the air inlet end of the conveying channel is connected to the air inlet pipe, and the air outlet end of the conveying channel is connected to the inside of the fixed pipe.

[0008] As an improvement to the above technical solution, a bracket is also provided below the roller assembly, on which two sets of rollers are rotatably mounted, and the outer wall of the rollers is fitted against the outer wall of the outer cylinder.

[0009] As an improvement to the above technical solution, a driving component is also included, which includes a motor and a transmission belt sleeved between the motor and the outer cylinder.

[0010] As an improvement to the above technical solution, the heating wire is installed in a spiral structure within the installation area, the inner cylinder is made of a thermally conductive material, and the outer cylinder is made of a thermally insulating material.

[0011] As an improvement to the above technical solution, an opening is provided at one end of the inner cylinder, and a cover is engaged with the opening.

[0012] As an improvement to the above technical solution, one end of the fixed tube is provided with an air outlet, and an air outlet pipe is fixedly inserted into the cover, with one end of the air outlet pipe engaging with the air outlet.

[0013] As an improvement to the above technical solution, a second motor is fixedly installed at the end of the inner cylinder, and a second transmission belt is provided between the output shaft of the second motor and the fixed tube.

[0014] The beneficial effects of this utility model are:

[0015] The heat generated by the heating wire is transferred to the inner cylinder through the wall surface, rapidly heating the inner cylinder wall. The air inlet pipe introduces high-temperature gas from the outside, which enters the conveying channel inside the stirring shaft, and then flows out of the inner cylinder after being conveyed to the fixed pipe. The gas is heated from the inside of the inner cylinder, forming a dual heating effect with the heat conducted through the wall surface of the heating wire. This significantly improves the uniformity of heat distribution, ensuring that the tea leaves are heated evenly inside and out, further guaranteeing the uniformity of the fixation process. Attached Figure Description

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

[0017] Figure 2 This is a side view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the rotating assembly of this utility model.

[0019] Reference numerals: 10. Inner cylinder; 11. Heating wire; 12. Outer cylinder; 13. Cover; 14. Air outlet pipe; 20. Bracket; 21. Roller; 30. Rotating assembly; 31. Fixed pipe; 32. Air inlet pipe; 33. Stirring shaft; 34. Air outlet; 40. Transmission belt 1; 41. Motor 1. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] A tea drum-type fixation machine includes:

[0022] A roller assembly includes an inner cylinder 10 and an outer cylinder 12 sleeved on the outer wall of the inner cylinder 10. An installation area is formed between the outer wall of the inner cylinder 10 and the inner wall of the outer cylinder 12. A heating wire 11 is provided in the installation area.

[0023] The rotating assembly 30 includes a fixed pipe 31 rotatably inserted into the inner cylinder 10, an air inlet pipe 32 rotatably inserted into the fixed pipe 31, and multiple sets of stirring shafts 33 disposed on the fixed pipe 31. The stirring shafts 33 have a conveying channel inside, the air inlet end of the conveying channel is connected to the air inlet pipe 32, and the air outlet end of the conveying channel is connected to the inside of the fixed pipe 31.

[0024] When the heating wire 11 is energized, it generates heat, which is transferred to the inner cylinder 10 through the wall surface, rapidly heating the inner cylinder wall. External force drives the drum assembly to rotate, and multiple stirring shafts 33 continuously stir the tea leaves in the inner cylinder 10. On the one hand, this ensures that the tea leaves are heated evenly within the inner cylinder 10, avoiding localized overheating or uneven heating that could lead to poor fixation. On the other hand, the air inlet pipe 32 introduces high-temperature gas from the outside. The gas enters the conveying channel within the stirring shaft 33 through the air inlet pipe 32, and then flows out of the inner cylinder 10 after being conveyed to the fixed pipe 31. This heats the tea leaves from the inside of the inner cylinder 10, forming a dual heating effect with the heat conducted through the wall surface of the heating wire 11. This significantly improves the uniformity of heat distribution, ensuring that the tea leaves are heated evenly inside and out, further guaranteeing the uniformity of fixation.

[0025] In one embodiment, a bracket 20 is also provided below the roller assembly. Two sets of rollers 21 are rotatably mounted on the bracket 20. The outer wall of the rollers 21 is fitted to the outer wall of the outer cylinder 12. The two rollers 21 are symmetrically distributed and can provide support for the outer cylinder 12, making the roller assembly more stable when rotating.

[0026] In one embodiment, a driving component is also included, which includes a motor 41 and a transmission belt 40 sleeved between the motor 41 and the outer cylinder 12. The motor 41 is started so that the motor 41 drives the roller assembly to rotate through the transmission belt 40, so as to ensure that the tea leaves can be heat-treated evenly during the fixation process.

[0027] In one embodiment, the heating wire 11 is installed in a spiral structure within the installation area. The inner cylinder 10 is made of a thermally conductive material, and the outer cylinder 12 is made of a thermally insulating material. The spiral heating wire 11 allows for more uniform heat transfer. The thermally conductive material of the inner cylinder 10 provides excellent thermal conductivity, enabling heat to be transferred quickly and efficiently from the heating wire 11 to the interior space of the inner cylinder 10. The thermally insulating material of the outer cylinder 12 effectively prevents heat from dissipating outward, reducing heat loss and ensuring that the interior of the inner cylinder 10 maintains a stable high-temperature environment.

[0028] In one embodiment, one end of the inner cylinder 10 has an opening, and a cover 13 is snapped onto the opening. Before the tea leaves are processed, the operator opens the cover 13 and puts the tea leaves to be processed into the inner cylinder 10 through the opening. Then, the cover 13 is snapped shut to prevent heat loss and tea leaves from splashing out during the processing. After the processing is completed, the cover 13 is opened again to facilitate the removal of the processed tea leaves for subsequent processing steps.

[0029] In one embodiment, one end of the fixed tube 31 is provided with an air outlet 34, and an air outlet tube 14 is fixedly inserted into the cover 13. One end of the air outlet tube 14 is engaged with the air outlet 34. When the cover 13 is engaged, and at the same time, it is ensured that one end of the air outlet tube 14 is tightly engaged with the air outlet 34 at one end of the fixed tube 31, the high-temperature gas in the fixed tube 31 can be guaranteed to flow out through the air outlet tube 14.

[0030] In one embodiment, a second motor is fixedly installed at the end of the inner cylinder 10. A second transmission belt is provided between the output shaft of the second motor and the fixed tube 31. The second motor drives the fixed tube 31 to rotate, thereby driving the stirring shaft 33 to rotate. The roller assembly rotates in the opposite direction to the stirring shaft 33. The reverse rotation can increase the relative movement between the tea leaves, so that the surface of the tea leaves can come into more full contact with the high temperature environment, thereby accelerating the enzyme inactivation process and improving the efficiency and quality of fixing. Therefore, the rotation of the roller assembly and the tumbling of the stirring shaft 33 are combined to completely break the static accumulation of tea leaves and ensure that each leaf is evenly contacted with the heat source.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A tea leaf drum-type fixing machine, characterized in that, include: The roller assembly includes an inner cylinder (10) and an outer cylinder (12) sleeved on the outer wall of the inner cylinder (10). An installation area is formed between the outer wall of the inner cylinder (10) and the inner wall of the outer cylinder (12). A heating wire (11) is provided in the installation area. The rotating assembly includes a fixed pipe (31) rotatably inserted into the inner cylinder (10), an air inlet pipe (32) rotatably inserted into the fixed pipe (31), and multiple sets of stirring shafts (33) disposed on the fixed pipe (31). The stirring shaft (33) has a conveying channel inside. The air inlet end of the conveying channel is connected to the air inlet pipe (32), and the air outlet end of the conveying channel is connected to the inside of the fixed pipe (31).

2. The tea drum-type fixation machine according to claim 1, characterized in that: It also includes a bracket (20) disposed below the roller assembly, on which two sets of rollers (21) are rotatably mounted, and the outer wall of the rollers (21) is fitted against the outer wall of the outer cylinder (12).

3. The tea drum-type fixation machine according to claim 2, characterized in that: It also includes a drive unit, which includes a motor (41) and a transmission belt (40) sleeved between the motor (41) and the outer cylinder (12).

4. The tea drum-type fixation machine according to claim 1, characterized in that: The heating wire (11) is installed in a spiral structure within the installation area. The inner cylinder (10) is made of thermally conductive material, and the outer cylinder (12) is made of thermally insulating material.

5. The tea drum-type fixation machine according to claim 1, characterized in that: An opening is provided at one end of the inner cylinder (10), and a cover (13) is engaged with the opening.

6. The tea drum-type fixation machine according to claim 5, characterized in that: One end of the fixed tube (31) is provided with an air outlet (34), and an air outlet tube (14) is fixedly inserted into the cover (13), with one end of the air outlet tube (14) engaging with the air outlet (34).

7. The tea drum-type fixation machine according to claim 1, characterized in that: A second motor is fixedly installed at the end of the inner cylinder (10), and a second transmission belt is provided between the output shaft of the second motor and the fixed tube (31).

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