Small green tea leaf screening device

Abstract

The utility model discloses a small-sized green tea leaf screening device which comprises a rack and a green tea leaf screening machine main body arranged on the rack, and a vibration reduction mechanism is arranged between a support and the green tea leaf screening machine main body; the top of the box body is provided with a feeding port, the side wall of the box body is provided with a discharging port, the vibrating mechanism is arranged on one side of the box body, a screen rod base plate is arranged at the bottom in the box body, and a plurality of n-shaped screen rods are arranged on the screen rod base plate in the transverse direction perpendicular to the discharging direction at intervals to form an upper-layer space and a lower-layer space; the discharge hole comprises an upper-layer discharge hole communicated with the upper-layer space and a lower-layer discharge hole communicated with the lower-layer space; during use, picked fresh tea leaf raw materials are fed into the feeding port through the feeding port, then the vibrating mechanism is started, one bud and one leaf are output from the upper-layer discharging port, and leftover materials are output from the lower-layer discharging port. The device provided by the utility model can effectively improve the sorting efficiency of fresh tea leaf raw materials.

Description

Technical Field

[0001] This utility model belongs to the technical field of accessories for tea picking and grading devices, and particularly relates to a small tea leaf screening device. Background Technology

[0002] Tea is one of the world's three major beverages, alongside coffee and cocoa. Different grades of fresh tea leaves (single bud, one bud and one leaf, one bud and two leaves, etc.) have significant differences in value, making grading a crucial step in tea production. Premium teas have extremely high requirements for fresh leaf raw materials, and currently rely primarily on hand-picking. Hand-picking tea relies heavily on experience to sort fresh leaves, resulting in relatively low grading efficiency. Simultaneously, with the increasing shortage of young and middle-aged labor in rural areas, the cost of manual tea picking is rising sharply.

[0003] Currently, most screening equipment is bulky and complex to operate. For example, patent document CN 119456395A discloses a tea grading and screening device, which includes a base, a sieve plate, and a guide plate. The sieve plate has several screening zones. The base is equipped with a drive component that pushes the sieve plate to slide intermittently back and forth. The base and the sieve plate are respectively fixed with a bracket and a connecting block. The bracket has several guide grooves, with one end of each guide groove close to the other. The length direction of one guide groove is consistent with the direction of gravity, while the length directions of the other guide grooves are at an angle to the direction of gravity, and the angles are not uniform. The connecting block is slidably equipped with several guide blocks, which are used to enter the several guide grooves respectively. The base is equipped with a control component for controlling the position of the several guide blocks.

[0004] Patent document CN118303221A discloses a tea picking and grading device that can automatically sieve tea leaves into bud-and-leaf, bud-and-two-leaf, bud-and-three-leaf, and higher grades during the picking process, thus improving the grading efficiency of tea picking. In practical applications, this device can effectively separate buds and leaves, but it may contain single leaves and broken leaves, requiring further sieving to meet the production standards of premium teas. Existing tea leaf grading machines are generally large in structure, often requiring a separate workshop, making them difficult to use in the field. Utility Model Content

[0005] The purpose of this invention is to provide a small tea leaf screening device. This device has a compact structure and is easy to deploy at the first harvesting site, so as to screen the fresh tea leaves as soon as possible and further improve the tea picking efficiency.

[0006] In order to achieve the purpose of this utility model, the following technical solution is provided: a small tea leaf screening device, including a frame, a tea leaf screening machine body set on the frame, and a vibration damping mechanism provided between the support and the tea leaf screening machine body;

[0007] The main body for screening tea leaves includes a box with an inlet at the top and an outlet on the side wall, and a vibration mechanism on one side of the box. The bottom of the box is provided with a screen rod base. Multiple n-shaped screen rods are arranged horizontally and vertically on the screen rod base to form an upper space and a lower space. The outlet includes an upper outlet communicating with the upper space and a lower outlet communicating with the lower space.

[0008] In use, freshly picked tea leaves are fed into the inlet, and the vibration mechanism is activated. One bud and one leaf are output from the upper outlet, and scraps are output from the lower outlet. The scraps include single leaves and broken leaves.

[0009] This invention is based on the unique shape of one bud and one leaf in fresh tea leaves. It uses a sieve surface composed of multiple n-shaped sieve bars for filtration, thereby improving the efficiency of tea picking and sorting.

[0010] Specifically, the feed inlet is equipped with a funnel-shaped opening for guiding fresh tea leaves into the box.

[0011] Specifically, there are four vibration damping mechanisms, with four vibration damping base rings arranged on the side of the housing.

[0012] Specifically, the vibration damping mechanism includes a bracket fixed to the outer side of the housing and a spring base mounted on the frame, wherein the bracket and the spring base are fixedly connected.

[0013] Specifically, the spacing between adjacent n-type screen bars is 3~5 mm.

[0014] Specifically, the n-type screen rod includes a first vertical screen rod standing on the screen rod base near the discharge port and a second vertical screen rod on the side away from the discharge port, as well as a transverse screen rod connecting the first support rod and the second support rod. The height of the transverse screen rod and the screen rod base is greater than the height of the lower discharge port, so as to avoid fresh tea leaves with one bud and one leaf falling into the lower scrap outlet and causing waste.

[0015] Specifically, a raised block is provided between the side of the screen base away from the discharge port and the bottom of the box to form a slope, thereby driving the fresh tea leaves to roll toward the discharge port.

[0016] Specifically, the vibration mechanism includes a vibration motor disposed on one side of the housing exterior and a mobile power supply for providing power to drive the vibration motor.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This device features a simple structure, small size, and low cost. Furthermore, by cooperating with its frame and vibration damping mechanism, the main body of the tea leaf sorting machine can be deployed at the first harvesting site, thereby effectively improving the efficiency of manual tea picking. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the small tea leaf sorting device provided in this embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the tea leaf screening body provided in this embodiment;

[0021] Figure 3 This is a sectional view of the interior of the box provided in this embodiment;

[0022] Figure 4 This is a schematic diagram of the screen surface composed of multiple n-type screen rods provided in this embodiment;

[0023] In the diagram, 1. Main body of the tea leaf screening machine; 2. Support frame; 3. Vibration damping spring; 4. Spring base; 5. Frame; 1001. N-type screen rod; 1002. Box body; 1003. Motor support side plate; 1004. Lower discharge port; 1005. Upper discharge port; 1006. Top cover plate; 1007. Feed inlet; 1008. Screen rod base plate; 1009. Motor support base plate; 1010. Vibration motor. Detailed Implementation

[0024] 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.

[0025] like Figure 1 As shown, this is a small tea leaf sorting device provided in this embodiment. The device has a compact overall structure and includes a frame 5. In this embodiment, it is constructed using square aluminum materials. The tea leaf sorting body 1 is fixed on the frame 5 by a vibration damping mechanism. The vibration damping mechanism includes four supports 2 arranged on the four sides of the tea leaf sorting body 1. Each support 2 is provided with a spring base 4 between it and the frame 5. During its operation, the vibration is eliminated by the vibration damping spring on the spring base 4, thereby ensuring a stable working environment for the frame at the first harvesting site.

[0026] In this embodiment, the bracket 2 and the tea leaf screening body 1 are fixed by bolts or by welding, while the spring base 4 is fixed to the frame 5 by setting magnets or by welding. At the same time, the bracket 2 and the spring base 4 are also fixed by welding.

[0027] like Figure 2The diagram shows the main body of the tea leaf screening device provided in this embodiment. The main body 1 of the tea leaf screening device includes a box 1002. The top cover plate 1006 of the box 1002 is provided with a feed inlet 1007 on one side. The feed inlet 1007 is equipped with a funnel opening, so as to facilitate the quick pouring of freshly picked tea leaves into the box 1002 for screening. The box 1002 is provided with two discharge ports on the side away from the feed inlet 1007, namely the upper discharge port 1005 for screening out one bud and one leaf and the lower discharge port 1004 for discharging single leaves and broken leaves.

[0028] like Figure 3 and Figure 4 The diagram shows the internal layout of the housing 1002 provided in this embodiment. A screen rod base 1008 is provided inside the housing 1002. Multiple mounting holes are provided on both sides of the screen rod base 1008, with each pair corresponding to a fixed n-shaped screen rod 1001. Multiple n-shaped screen rods 1001 are arranged side-by-side to form a screen surface. The principle is that a common bud and leaf will always be positioned above two adjacent n-shaped screen rods 1001 due to the unfolding of the bud and leaf. Single leaves and broken leaves will fall into the lower area through these gaps. The space on the n-shaped screen rod 1001 forms a bud and leaf discharge channel with the upper discharge port 1005, while the space below the n-shaped screen rod 1001 forms a single leaf and broken leaf discharge channel with the lower discharge port 1004.

[0029] In this embodiment, the spacing between adjacent n-type screen bars is 3mm.

[0030] In addition, a shim block is provided between the bottom of the sieve rod base 1008 and the bottom of the box 1002 to appropriately raise the material and create a slope, which facilitates the transportation of fresh tea leaves.

[0031] A motor support side plate 1003 is installed on the bottom of the outer casing 1002, and a motor support base plate 1009 is fixed to the motor support side plate 1003 by bolts. A vibrating motor 1010 is installed on the motor support base plate 1009. The motor parameters can be determined according to the required maximum screening weight, or multiple vibrating motors 1010 can be installed to meet actual needs. In addition, the frame 5 is also equipped with an equipment platform to place a mobile power supply to provide power to the vibrating motors 1010.

[0032] The working principle of this invention is as follows: Freshly picked tea leaves (mainly one bud and one leaf, but also containing single leaves and broken leaves) are fed into the screening machine through the inlet. When the vibrating motor is working, the single leaves and broken leaves mixed in with the one bud and one leaf can fall into the lower space of the box through the gaps between the screen bars, while the one bud and one leaf itself, due to the unfolding of the bud and leaves, will always remain above the screen bars and be conveyed forward along with the single leaves and broken leaves by the vibration of the motor. Finally, the single leaves and broken leaves are output through the lower outlet, and the one bud and one leaf are output through the upper outlet. The rear end of the screen bar base can be appropriately raised to create a slope as needed to facilitate the conveying of the fresh tea leaves.

[0033] In summary, the advantages of this utility model are its simple structure, small size, and low cost. When combined with the already disclosed tea picking and grading device, it can further improve the purity of one bud and one leaf.

[0034] Furthermore, the terms "upper," "lower," "inner," "outer," "front," and "rear" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise specifically stated, the relative steps, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this invention.

[0035] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

[0036] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A small-scale tea leaf sorting device, characterized in that, The machine includes a frame, a tea leaf screening machine body mounted on the frame, and a vibration damping mechanism between the support and the tea leaf screening machine body. The main body for screening tea leaves includes a box with an inlet at the top and an outlet on the side wall, and a vibration mechanism set on one side of the box. The bottom of the box is provided with a screen rod base. Multiple n-shaped screen rods are arranged horizontally and vertically on the screen rod base to form an upper space and a lower space. The outlet includes an upper outlet communicating with the upper space and a lower outlet communicating with the lower space. When in use, fresh tea leaves are fed into the feed inlet and the vibration mechanism is activated. One bud and one leaf are output from the upper discharge outlet, and scraps are output from the lower discharge outlet.

2. The small-scale tea leaf screening device according to claim 1, characterized in that, The feed inlet is equipped with a funnel-shaped opening for guiding fresh tea leaves into the box.

3. The small-scale tea leaf screening device according to claim 1, characterized in that, There are four vibration damping mechanisms, and four vibration damping base rings are arranged on the side of the box.

4. The small-scale tea leaf screening device according to claim 1 or 3, characterized in that, The vibration damping mechanism includes a bracket fixed to the outer side of the housing and a spring base mounted on the frame, the bracket and the spring base being fixedly connected.

5. The small-scale tea leaf screening device according to claim 1, characterized in that, The spacing between adjacent n-type screen bars is 3~5 mm.

6. The small-scale tea leaf screening device according to claim 1, characterized in that, The n-type screen rod includes a first vertical screen rod standing on the screen rod base near the discharge port and a second vertical screen rod standing on the side away from the discharge port, as well as a transverse screen rod connecting the first support rod and the second support rod. The height of the transverse screen rod and the screen rod base is greater than the height of the lower discharge port.

7. The small-scale tea leaf screening device according to claim 1, characterized in that, The vibration mechanism includes a vibration motor mounted on one side of the housing and a mobile power source for providing power to drive the vibration motor.

8. The small-scale tea leaf screening device according to claim 1, characterized in that, A raised block is provided between the side of the screen base away from the discharge port and the bottom of the box to form a slope.

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