Multi-stage roller tea screening machine

Abstract

The utility model discloses a multi-stage roller tea screening machine which comprises a fixing assembly, a power system, a collecting system, a net roller assembly and a feeding port. An inclined fine screen, an inclined medium screen and an inclined coarse screen are arranged to form a screen roller to screen tea leaves, and the tea leaves are screened into different shapes and sizes such as fine, medium, coarse and extremely-coarse tea leaves; inclined baffles which are parallel to one another and distributed in a staggered mode are arranged in the fine screen, the medium screen and the coarse screen respectively, tea leaves at the bottom of the screen roller are separated, and the tea leaves sequentially leave the bottom of the screen roller along with rotation of the screen roller and vibration of the vibration assembly and are screened while sliding and sliding down. The inclined baffles distributed in a staggered mode enable the tea leaves to be frequently turned over in the multiple sliding-down process, and the tea leaves can be fully and thoroughly screened. The problem that tea leaves are not thoroughly screened due to the fact that the tea leaves are easily accumulated at the bottom of the net roller is solved, dispersion, turning and multi-stage screening of the tea leaves are achieved, and the tea leaves are more thoroughly and completely screened.

Description

Technical Field

[0001] This utility model relates to the field of tea sieving machine technology, specifically a multi-stage drum tea sieving machine. Background Technology

[0002] After the initial processing of tea leaves, a sieving process is necessary to remove fine tea dust, coarse leaves, and branches, separating the tea leaves into coarse, medium, and fine sizes before further processing into higher-grade teas. When using a sieving machine, a screening mesh is typically used.

[0003] For example, Chinese invention patent CN222197712U, published on December 20, 2024, discloses a rotary sieving machine for fresh tea leaves. It includes a support assembly, a roller assembly, a collection box assembly, and a shaking assembly. The roller assembly is fixedly mounted on the top of the support assembly, the collection box assembly is fixedly mounted on the bottom of the roller assembly, and the shaking assembly is fixedly mounted on the bottom of the collection box assembly. The roller assembly contains a sieving roller with three fixed sections, each corresponding to a different size of mesh opening. This invention divides the tea leaves into three areas (small, medium, and large) on the same roller using a single mesh roller. Combined with the collection box below, the tea leaves are continuously moved forward by the rolling motion as they are poured in, thus unconsciously separating the tea leaves by size.

[0004] As can be seen from the above patents, the rotary sieving machine divides tea leaves into three areas on the same screen drum for grading and sieving. However, since the tea leaves are basically at the bottom of the screen drum, they tend to accumulate at the bottom, resulting in incomplete sieving. Therefore, this utility model provides a multi-stage drum tea sieving machine to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-stage drum tea sieving machine.

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

[0007] A multi-stage drum tea sieving machine includes a fixed assembly, a power system, a collection system, and a mesh drum assembly. The fixed assembly includes a fixed bracket and a fixed base. The power system includes a controller, a motor, a rotating shaft, and rotating rods. The controller and motor are respectively mounted on the fixed base. The rotating shaft is rotatably connected to the output end of the motor via a belt. Several rotating rods are arranged on the rotating shaft. The mesh drum assembly includes a fine screen, a medium screen, and a coarse screen arranged in segments. The rotating shaft, rotating rods, fine screen, medium screen, and coarse screen are inclined at an angle of 5-10º to the horizontal direction. The left and right ends of the fine screen, medium screen, and coarse screen are respectively arranged around the outer end of the rotating rod to form a mesh drum, and the overlapping points are fixed to the rotating rod with screws. Parallel and staggered baffles are respectively arranged inside the fine screen, medium screen, and coarse screen, and the baffles are inclined at an angle of 10-15º to the horizontal direction.

[0008] Preferably, the collection system includes a first collection box, a second collection box, a third collection box, and a fourth collection box. The first collection box, the second collection box, and the third collection box are sequentially arranged directly below the fine screen, the medium screen, and the coarse screen. The fourth collection box is arranged at the lower edge of the coarse screen, and the right end of the fourth collection box is located directly below the lower end of the coarse screen.

[0009] Preferably, in the plane of each layer of rotating rods, adjacent rotating rods are evenly distributed at a 45º angle, and the inner end of each layer of rotating rods is integrally formed into a circular sleeve with a protrusion, which engages with the groove of the rotating shaft.

[0010] Preferably, the mesh roller assembly is movably connected to the fixed support, the fixed support is provided with a vibration component in the middle, and the controller is electrically connected to the vibration component and the motor respectively.

[0011] Preferably, the bottom of the fine screen extends to the right to provide a feed inlet.

[0012] The beneficial effects of this utility model are:

[0013] An inclined fine, medium, and coarse screen is used to form a screen drum for sieving tea leaves, separating them into different sizes: fine, medium, coarse, and extra coarse. Parallel and staggered inclined baffles are installed inside the fine, medium, and coarse screens to separate the tea leaves at the bottom of the screen drum. As the screen drum rotates and the vibration component vibrates, the tea leaves sequentially leave the bottom of the screen drum, sliding and falling while being sieved. The staggered inclined baffles cause the tea leaves to be frequently turned over during the multiple sliding process, resulting in thorough and complete sieving. This application solves the problem of tea leaves easily accumulating at the bottom of the screen drum, leading to incomplete sieving, and achieves dispersion, turning, and multi-stage sieving of the tea leaves, resulting in more thorough and complete sieving. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the unfolded structure of the screen of this utility model.

[0019] As shown in the figure:

[0020] 1. Fixing components; 101. Fixing bracket; 102. Fixing seat; 103. Vibration assembly; 2. Power system; 201. Controller; 202. Motor; 203. Rotating shaft; 204. Rotating rod; 3. Collection system; 301. First collection box; 302. Second collection box; 303. Third collection box; 304. Fourth collection box; 4. Mesh roller assembly; 401. Fine screen; 402. Medium screen; 403. Coarse screen; 404. Baffle; 5. Feed inlet. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Reference Figure 1-3This utility model discloses a multi-stage drum tea sieving machine, including a fixed assembly 1, a power system 2, a collection system 3, a mesh drum assembly 4, and a feed inlet 5. The fixed assembly 1 includes a fixed bracket 101 for supporting the mesh drum assembly 4 and a fixed base 102 for fixing the power system 2. The power system 2 includes a controller 201, a motor 202, a rotating shaft 203, and rotating rods 204. The controller 201 and the motor 202 are respectively fixed on the fixed base 102, and the controller 201 controls the motor 202. The rotating shaft 203 is rotatably connected to the output end of the motor 202 via a belt and is driven by the motor 202. The rotating shaft 203 is provided with four layers of rotating rods 204. The four layers of rotating rods 204 are used to divide the mesh drum assembly 4 into three screen sections: a fine screen 401, a medium screen 402, and a coarse screen 403, and at the same time, to spread out the three screen sections and drive the three screen sections to rotate. The mesh roller assembly 4 includes a segmented fine screen 401, a medium screen 402, and a coarse screen 403. The rotating shaft 203, rotating rod 204, and the fine screen 401, medium screen 402, and coarse screen 403 are inclined at an angle of 5-10º to the horizontal direction. This inclined screen design facilitates the sliding of tea leaves. The left and right ends of the fine screen 401, medium screen 402, and coarse screen 403 respectively wrap around the outer end of the rotating rod 204 to form a mesh roller, and the overlapping points are fixed to the rotating rod 204 with screws for easy disassembly and installation. The screens 401, 402, and 403 are equipped with parallel and staggered baffles 404. The baffles 404 are inclined at an angle of 10 to 15 degrees to the horizontal. The baffles 404 are used to separate the tea leaves at the bottom of the screen drum. As the screen drum rotates and the vibrating component vibrates, the tea leaves leave the bottom of the screen drum one by one and slide and fall while being screened. The staggered baffles 404 make the multiple sliding process equivalent to frequent turning of the tea leaves, which can fully and thoroughly screen the tea leaves. The collection system 3 includes a first collection box 301, a second collection box 302, a third collection box 303, and a fourth collection box 304. The first collection box 301, the second collection box 302, and the third collection box 303 are arranged directly below the fine screen 401, the medium screen 402, and the coarse screen 403, respectively. The fourth collection box 304 is located at the lower edge of the coarse screen 403, and the right end of the fourth collection box 304 is located directly below the lower end of the coarse screen 403. They are used to collect tea leaves of four different sizes: fine, medium, coarse, and extra coarse.

[0028] In an optional embodiment, the mesh roller assembly 4 is movably connected to the fixed bracket 101. A vibration component 103 is provided in the middle of the fixed bracket 101. The vibration component 103, which is electrically connected to the controller 201 and controlled by the controller 201, generates vibration, which is then used to vibrate the mesh roller assembly 4, which is beneficial for the sieving of tea leaves.

[0029] In an optional embodiment, adjacent rotating rods 204 are evenly distributed at a 45º angle within the plane of each layer of rotating rods 204, that is, 8 rotating rods 204 are provided within the plane of each layer of rotating rods 204. The inner end of each layer of rotating rods 204 is integrally formed into a circular sleeve with a protrusion, which engages with the groove of the rotating shaft 203, and the rotating shaft 203 drives the rotating rods 204 to rotate.

[0030] In an optional embodiment, a feed inlet 5 is provided at the bottom right of the fine screen 401 for feeding tea leaves.

[0031] Of course, the embodiments described in this specific implementation are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A multi-stage rolling drum tea screening machine, comprising a fixed assembly (1), a power system (2), a collection system (3) and a mesh drum assembly (4), wherein the fixed assembly (1) comprises a fixed support (101) and a fixed seat (102), the power system (2) comprises a controller (201), a motor (202), a rotating shaft (203) and a rotating rod (204), the controller (201) and the motor (202) are arranged on the fixed seat (102) respectively, the rotating shaft (203) is rotationally connected to the output end of the motor (202) through a belt, and 4 layers of rotating rods (204) are arranged on the rotating shaft (203), characterized in that: The net cylinder assembly (4) comprises a fine screen (401), a medium screen (402) and a coarse screen (403) arranged in sections, the rotating shaft (203), the rotating rod (204), the fine screen (401), the medium screen (402) and the coarse screen (403) are inclined at an angle of 5-10º to the horizontal direction, the left and right ends of the fine screen (401), the medium screen (402) and the coarse screen (403) are respectively wrapped around the outer end of the rotating rod (204) to form a net cylinder, and the overlapping points are fixed on the rotating rod (204) by screws, the fine screen (401), the medium screen (402) and the coarse screen (403) are respectively provided with baffles (404) arranged in parallel and staggered, and the baffles (404) are inclined at an angle of 10-15º to the horizontal direction.

2. A multi-stage drum tea screening machine according to claim 1, characterized in that: The collecting system (3) comprises a first collecting box (301), a second collecting box (302), a third collecting box (303) and a fourth collecting box (304), the first collecting box (301), the second collecting box (302) and the third collecting box (303) are arranged in sequence below the fine screen (401), the medium screen (402) and the coarse screen (403), and the fourth collecting box (304) is arranged at the low end edge of the coarse screen (403), and the right end of the fourth collecting box (304) is located directly below the low end of the coarse screen (403).

3. A multi-stage drum tea screening machine as claimed in claim 1, wherein: In the plane of each layer of the rotating rod (204), adjacent rotating rods (204) are uniformly distributed at an angle of 45º, and the inner end of each layer of the rotating rod (204) is integrally formed into a circular sleeve of a protruding block which is engaged with the groove of the rotating shaft (203).

4. A multi-stage drum tea screening machine as claimed in claim 1, wherein: The net cylinder assembly (4) is movably connected and arranged on the fixed support (101), the vibration assembly (103) is arranged in the middle of the fixed support (101), and the controller (201) is electrically connected with the vibration assembly (103) and the motor (202).

5. A multi-stage drum tea screening machine as claimed in claim 1, wherein: The fine screen (401) is provided with a feed inlet (5) extending to the right at the bottom.

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