Automatic tea leaf natural light withering equipment

Abstract

The utility model discloses a kind of tea natural light automatic sun-curing equipment, including two or more than sun-curing conveying devices, each sun-curing conveying device is sequentially arranged high and low, and sun-curing conveying device is by sun-curing conveying frame, the sun-curing conveying belt component of sun-curing conveying frame, along the direction of conveyance, the end of last sun-curing conveying belt component is located above the front end of next sun-curing conveying belt component;Tea falls into the front end of next sun-curing conveying device from the end of last sun-curing conveying device along the direction of conveyance.The equipment is installed in sunning ground or glass room, by setting two or more than sun-curing conveying device sequentially arranged high and low, fresh tea can be aired in conveying process, and at least once material turning is automatically realized by height difference, finally automatic material collecting is carried out by material collecting conveying device;Tea completes material turning procedure in free falling process, directly act on tea by equipment such as turnover device to the greatest extent, thereby avoid tea damage problem.

Description

Technical Field

[0001] This utility model relates to the technical field of tea production equipment, specifically an automatic sun-drying device for tea under natural light. Background Technology

[0002] Dancong tea is a special type of oolong tea, belonging to the semi-fermented category, possessing its own unique style and excellent quality. The initial processing of Dancong tea consists of six steps: sun-drying, air-drying, oxidation, fixation, rolling, and roasting. Among these, oxidation is the key process for forming its quality characteristics, consisting of multiple alternating processes of shaking and resting. Through oxidation, the grassy aroma in the fresh leaves transforms into aromatic substances and the unique floral and fruity flavors of Dancong tea.

[0003] Sun-drying is a crucial step in the initial processing of Dancong tea (and other types of oolong and Pu'er tea). Its core significance lies in the initial physical and chemical reactions of fresh leaves through sunlight exposure and spreading, laying the foundation for subsequent processes. Traditionally, sun-drying involves manually selecting the time, humidity, and light intensity using traditional tools such as sieves and mesh frames. To adapt to automated production, conveyor belt sun-drying machines have been developed. These machines are key equipment for achieving large-scale, standardized sun-drying in modern tea processing. Their structural design closely revolves around the goals of "uniform light exposure, precise time control, and high energy efficiency," making them particularly suitable for oolong teas (such as Dancong tea) and Pu'er tea, which require a high degree of sun-drying.

[0004] Existing conveyor belt sun-drying machines typically have turners spaced along the conveyor belt. When the conveyor belt is running, the turners turn the tea leaves to ensure uniform sun-drying. However, because the turners directly contact the tea leaves, they can easily cause some damage. Furthermore, since the turners move from the surface of the conveyor belt, multiple turners are needed to ensure uniform turning, which can lead to even more damage to the tea leaves. Utility Model Content

[0005] The purpose of this invention is to provide an automatic sun-drying device for tea leaves under natural light, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic sun-drying device for tea leaves includes two or more sun-drying conveyor devices, each arranged sequentially at different heights. Each sun-drying conveyor device consists of a sun-drying conveyor frame and a sun-drying conveyor belt assembly mounted on the sun-drying conveyor frame. Along the conveying direction, the end of the previous sun-drying conveyor belt assembly is located above the front end of the next sun-drying conveyor belt assembly. The tea leaves fall from the end of the previous sun-drying conveyor device to the front end of the next sun-drying conveyor device along the conveying direction.

[0008] Furthermore, the automatic sun-drying equipment for tea leaves also includes a material collection and conveying device, which is located at the end of the last sun-drying conveying device along the conveying direction.

[0009] Specifically, the material conveying device includes a material conveying frame and a scraper conveyor belt assembly mounted on the material conveying frame. A material conveying drive assembly is also mounted on one side of the material conveying frame. The material conveying drive assembly drives the scraper conveyor belt assembly to rotate. The scraper conveyor belt assembly is located below the end of the last of the sun-drying conveyor belt assemblies.

[0010] Furthermore, the automatic sun-drying equipment for tea leaves also includes multiple sun-drying conveyor lines composed of two or more sun-drying conveyor devices, with the end of the last sun-drying conveyor belt assembly in each sun-drying conveyor line located above the scraper conveyor belt assembly of the material collection conveyor device.

[0011] Furthermore, the automatic sun-drying equipment for tea leaves also includes an intelligent control box, which is provided for each of the sun-drying conveyor lines. The intelligent control box is used to control the rotation of the sun-drying conveyor belt assembly.

[0012] Specifically, the sun-drying conveyor belt assembly includes two conveyor chains, each with its ends connected to a drive shaft on the upper part of the sun-drying conveyor frame; multiple supporting round tubes are evenly arranged between the two conveyor chains, and an elastic mesh belt is fitted onto the supporting round tubes, the elastic mesh belt rotating synchronously with the conveyor chains.

[0013] Specifically, the two ends of the supporting cylindrical tube are respectively mounted on opposite sides of the two conveyor chains via a connecting pin. The connecting pins are fixed to the sides of the conveyor chains, and the supporting cylindrical tube is rotatably positioned between the two connecting pins.

[0014] Furthermore, a set of chain groove square tubes is provided on both sides of the sun-drying conveyor frame for each of the conveyor chains. The chain groove square tubes on both sides have slots on opposite sides, and the conveyor chains are positioned and moved within the chain groove square tubes.

[0015] Optionally, baffles are provided on both sides of the upper part of the sun-drying conveyor frame corresponding to the sun-drying conveyor belt assembly, and the baffles allow the tea leaves to be dried and conveyed in the middle of the sun-drying conveyor belt assembly.

[0016] Furthermore, a sun-drying reduction gearbox is provided at one end of the sun-drying conveyor frame. The sun-drying reduction gearbox is connected to one of the drive shafts through a transmission component, and the drive shaft drives the two conveyor chains to rotate.

[0017] Furthermore, along the conveying direction, the sun-drying conveyor belt assemblies of the sun-drying conveyor frame are all inclined upwards from the front end to the end end, thereby creating a height difference between the end of the previous sun-drying conveyor belt assembly and the front end of the next sun-drying conveyor belt assembly.

[0018] The beneficial effects of this utility model are:

[0019] The automatic sun-drying equipment for tea leaves according to this utility model is installed in a drying yard or glass room. By setting up two or more sun-drying conveyor devices arranged at different heights, the fresh tea leaves can be sun-dried during the conveying process. The height difference automatically achieves at least one turning of the tea leaves, and finally the tea leaves are automatically collected by the collection conveyor device. The turning process is completed during the free fall of the tea leaves, which minimizes the direct impact of the turning device and other equipment on the tea leaves, thereby avoiding the problem of tea leaf damage.

[0020] Furthermore, the system utilizes multiple sun-drying conveyor lines, each consisting of two or more sun-drying conveyors. Each conveyor line can be used independently or simultaneously. Due to variations in the arrival time and quality of fresh tea leaves, the conveyor lines can be used sequentially, and the turning time for each line can be set differently, allowing for flexible adjustment of the sun-drying time based on the quality of the fresh tea leaves. The equipment can also automatically generate sun-drying and turning times by incorporating data such as temperature, humidity, and light intensity, as well as sensing parameters like the moisture content of fresh tea leaves and image recognition technology, thus achieving intelligent and automated production. Attached Figure Description

[0021] Figure 1 This is a schematic side view of the structure of the automatic sun-drying equipment for tea leaves under natural light, according to an embodiment of this utility model.

[0022] Figure 2 The main view is a schematic diagram of the structure of the sun-drying conveyor device according to an embodiment of this utility model. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the sun-drying conveyor belt assembly structure according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic side view of the structure of the sun-drying conveyor device according to an embodiment of the present utility model;

[0025] Figure 5 This is a schematic front view of the sun-drying conveyor device according to an embodiment of the present invention. Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the production line structure in the automatic sun-drying equipment for tea leaves under natural light, according to an embodiment of this utility model.

[0027] Among them, 10-sun-drying conveyor device, 11-sun-drying conveyor frame, 12-sun-drying conveyor belt assembly, 121-elastic mesh belt, 122-conveyor chain, 123-supporting round tube, 124-connecting pin;

[0028] 13-Sun-dried greening reduction gearbox, 14-Transmission assembly, 15-Drive shaft, 16-Chain groove square tube, 17-Adjustable support foot, 18-Baffle plate;

[0029] 20-Collecting material conveying device, 21-Collecting material conveying frame, 22-Scraper conveyor belt assembly, 23-Collecting material conveying drive assembly. Detailed Implementation

[0030] 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 protection scope of the present utility model. Example 1

[0031] Please see Figure 1-2 This utility model embodiment proposes an automatic sun-drying device for tea leaves under natural light, including two or more sun-drying conveyor devices 10. Each sun-drying conveyor device 10 is arranged sequentially at different heights. Each sun-drying conveyor device 10 consists of a sun-drying conveyor frame 11 and a sun-drying conveyor belt assembly 12 disposed on the sun-drying conveyor frame 11. Along the conveying direction, the end of the previous sun-drying conveyor belt assembly 12 is located above the front end of the next sun-drying conveyor belt assembly 12. The tea leaves fall from the end of the previous sun-drying conveyor device 10 to the front end of the next sun-drying conveyor device 10 along the conveying direction.

[0032] In use, fresh tea leaves are fed into the sun-drying conveyor belt assembly from the front end of the first sun-drying conveyor device. As the sun-drying conveyor belt assembly rotates, the tea leaves are evenly spread on the first sun-drying conveyor belt assembly. When the sun-drying time reaches the preset time, the first and second sun-drying conveyor devices rotate synchronously. Along the conveying direction, the tea leaves fall from the end of the first sun-drying conveyor belt assembly to the front end of the second sun-drying conveyor belt assembly. The tea leaves complete the turning process during the free fall, minimizing the direct impact of the turning device and other equipment on the tea leaves, thereby avoiding tea leaf damage.

[0033] like Figure 1 As shown, the automatic sun-drying equipment for tea leaves also includes a material collection and conveying device 20, which is located at the end of the last sun-drying conveying device 10 along the conveying direction.

[0034] Specifically, the material collection and conveying device 20 includes a material collection and conveying frame 21 and a scraper conveyor belt assembly 22 disposed on the material collection and conveying frame 21. A material collection and conveying drive assembly 23 is also disposed on one side of the material collection and conveying frame 21. The material collection and conveying drive assembly 23 drives the scraper conveyor belt assembly 22 to rotate. The scraper conveyor belt assembly 22 is located below the end of the last sun-drying conveyor belt assembly 12.

[0035] like Figure 6 As shown, the automatic sun-drying equipment for tea leaves also includes multiple sun-drying conveyor lines composed of two or more sun-drying conveyor devices 10. The end of the last sun-drying conveyor belt assembly 12 in each sun-drying conveyor line is located above the scraper conveyor belt assembly 22 of the material collection conveyor 20.

[0036] Optionally, the automatic sun-drying equipment for tea leaves also includes an intelligent control box, with each sun-drying conveyor line having its own intelligent control box, which is used to control the rotation of the sun-drying conveyor belt assembly.

[0037] In use, each sun-drying conveyor line can be used independently or simultaneously. Due to the different arrival times and quality of fresh tea leaves, the sun-drying conveyor lines can be used sequentially. Furthermore, the turning time of each sun-drying conveyor line can be set differently, thus allowing for flexible adjustment of the sun-drying time based on the quality of the fresh tea leaves.

[0038] In addition, by combining data such as temperature, humidity, and light intensity, as well as sensing parameters such as the moisture content of fresh tea leaves and image recognition technology for fresh tea leaves, the drying time and turning time can be automatically generated, thereby achieving intelligent and automated production.

[0039] like Figure 1-3 As shown, the sun-drying conveyor belt assembly 12 includes two conveyor chains 122, with each end of the two conveyor chains 122 being mounted on the upper part of the sun-drying conveyor frame 11 via a drive shaft 15; a plurality of support tubes 123 are evenly arranged between the two conveyor chains 122, and an elastic mesh belt 121 is sleeved on the support tubes 123, the elastic mesh belt 121 rotating synchronously with the conveyor chains 122.

[0040] Specifically, the two ends of the supporting cylindrical tube 123 are respectively installed on opposite sides of the two conveyor chains 122 via a connecting pin 124. The connecting pin 124 is fixed to the side of the conveyor chain 122, and the supporting cylindrical tube 123 is rotatably positioned between the two connecting pins 124.

[0041] like Figure 3As shown, a set of chain groove square tubes 16 are respectively provided on both sides of the sun-drying conveyor frame 11 for each of the conveyor chains 122. The chain groove square tubes 16 on both sides have slots on opposite sides, and the conveyor chains 122 are positioned and moved within the chain groove square tubes 16.

[0042] Optionally, baffle plates 18 are respectively provided on both sides of the upper part of the sun-drying conveyor frame 11 corresponding to the sun-drying conveyor belt assembly 12. The baffle plates 18 allow the tea leaves to be sun-dried and conveyed in the middle position of the sun-drying conveyor belt assembly 12.

[0043] like Figure 1 As shown, a sun-drying conveyor frame 11 is also provided with a sun-drying reduction drive box 13 at one end. The sun-drying reduction drive box 13 is connected to one of the drive shafts 15 through a transmission component 14, and the drive shaft 15 drives the two conveyor chains 122 to rotate.

[0044] like Figure 4 , 5 As shown, along the conveying direction, the sun-drying conveyor belt assemblies 12 of the sun-drying conveyor frame 11 are all inclined upward from the front end to the end end, thereby creating a height difference between the end of the previous sun-drying conveyor belt assembly 12 and the front end of the next sun-drying conveyor belt assembly 12.

[0045] Optionally, the bottom of the sun-drying conveyor frame 11 is provided with an adjustable support foot 147. The adjustable support foot 147 is used to adjust the tilt angle of the sun-drying conveyor device 10, so that a large height difference is formed between the end of the previous sun-drying conveyor belt assembly 12 and the front end of the next sun-drying conveyor belt assembly 12, and the height difference is adjustable.

[0046] The automatic sun-drying equipment for tea leaves according to this utility model is installed in a drying yard or glass room. By setting up two or more sun-drying conveyor devices arranged at different heights, the fresh tea leaves can be sun-dried during the conveying process. The height difference automatically achieves at least one turning of the tea leaves, and finally the tea leaves are automatically collected by the collection conveyor device. The turning process is completed during the free fall of the tea leaves, which minimizes the direct impact of the turning device and other equipment on the tea leaves, thereby avoiding the problem of tea leaf damage.

[0047] Furthermore, the system utilizes multiple sun-drying conveyor lines, each consisting of two or more sun-drying conveyors. Each conveyor line can be used independently or simultaneously. Due to variations in the arrival time and quality of fresh tea leaves, the conveyor lines can be used sequentially, and the turning time for each line can be set differently, allowing for flexible adjustment of the sun-drying time based on the quality of the fresh tea leaves. The equipment can also automatically generate sun-drying and turning times by incorporating data such as temperature, humidity, and light intensity, as well as sensing parameters like the moisture content of fresh tea leaves and image recognition technology, thus achieving intelligent and automated production.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic sun-drying device for tea leaves under natural light, characterized in that, It includes two or more sun-drying conveyor devices, each of which is arranged sequentially at different heights. Each sun-drying conveyor device consists of a sun-drying conveyor frame and a sun-drying conveyor belt assembly mounted on the sun-drying conveyor frame. Along the conveying direction, the end of the previous sun-drying conveyor belt assembly is located above the front end of the next sun-drying conveyor belt assembly. The tea leaves fall from the end of the previous sun-drying conveyor device to the front end of the next sun-drying conveyor device along the conveying direction.

2. The automatic sun-drying equipment for tea leaves under natural light according to claim 1, characterized in that, The automatic sun-drying equipment for tea leaves also includes a material collection and conveying device, which is located at the end of the last sun-drying conveying device along the conveying direction.

3. The automatic sun-drying equipment for tea leaves under natural light according to claim 2, characterized in that, The material conveying device includes a material conveying frame and a scraper conveyor belt assembly mounted on the material conveying frame. A material conveying drive assembly is also mounted on one side of the material conveying frame. The material conveying drive assembly drives the scraper conveyor belt assembly to rotate. The scraper conveyor belt assembly is located below the end of the last of the sun-drying conveyor belt assemblies.

4. The automatic sun-drying equipment for tea leaves under natural light according to claim 3, characterized in that, The automatic sun-drying equipment for tea leaves also includes multiple sun-drying conveyor lines consisting of two or more sun-drying conveyor devices. The end of the last sun-drying conveyor belt assembly in each sun-drying conveyor line is located above the scraper conveyor belt assembly of the material collection conveyor device.

5. The automatic sun-drying equipment for tea leaves under natural light according to claim 4, characterized in that, The automatic sun-drying equipment for tea leaves also includes an intelligent control box. Each sun-drying conveyor line is equipped with an intelligent control box, which is used to control the rotation of the sun-drying conveyor belt assembly.

6. The automatic sun-drying equipment for tea leaves under natural light according to claim 1, characterized in that, The sun-drying conveyor belt assembly includes two conveyor chains, each with its ends connected to a drive shaft on the upper part of the sun-drying conveyor frame. Multiple support tubes are evenly arranged between the two conveyor chains, and an elastic mesh belt is fitted onto each support tube, rotating synchronously with the conveyor chains.

7. The automatic sun-drying equipment for tea leaves under natural light according to claim 6, characterized in that, On both sides of the sun-drying conveyor frame, a set of chain groove square tubes are respectively provided for each of the conveyor chains. The chain groove square tubes on both sides have slots on opposite sides, and the conveyor chains are positioned and moved within the chain groove square tubes.

8. The automatic sun-drying equipment for tea leaves under natural light according to claim 1, characterized in that, The upper sides of the sun-drying conveyor frame are respectively provided with baffles corresponding to the sun-drying conveyor belt assembly. The baffles allow the tea leaves to be dried and conveyed in the middle of the sun-drying conveyor belt assembly.

9. The automatic sun-drying equipment for tea leaves under natural light according to claim 6, characterized in that, One end of the sun-drying conveyor frame is also equipped with a sun-drying reduction gearbox, which is connected to one of the drive shafts through a transmission component, and drives the two conveyor chains to rotate through the drive shaft.

10. The automatic sun-drying equipment for tea leaves under natural light according to claim 1, characterized in that, Along the conveying direction, the sun-drying conveyor belt assemblies of the sun-drying conveyor frame are all inclined upward from the front end to the end end, thereby creating a height difference between the end of the previous sun-drying conveyor belt assembly and the front end of the next sun-drying conveyor belt assembly.

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