A classer for green tea processing

Abstract

This utility model discloses a grading machine for green tea processing, belonging to the field of green tea screening technology. It includes an inclined support frame, within which a roller sieve assembly for grading and screening green tea is inclinedly arranged. Below the roller sieve assembly is a drive assembly for driving its operation. A feed hopper, communicating with the roller sieve assembly, is fixedly connected to the right side of the inclined support frame. A uniform feeding assembly is located inside the feed hopper and is drively connected to the roller sieve assembly. The roller sieve assembly contains a green tea limiting assembly to block green tea. Through the roller sieve assembly and the green tea limiting assembly, this utility model enables the roller sieve assembly to achieve three-level fine grading of green tea. Simultaneously, the green tea can be agitated during sieving to improve screening uniformity. The green tea limiting assembly can precisely adjust the baffle position to control the residence time of green tea, thereby improving screening quality.

Description

Technical Field

[0001] This utility model belongs to the field of green tea screening technology, specifically relating to a grading machine for green tea processing. Background Technology

[0002] Green tea is one of the main types of tea in my country. It is made from the new leaves or buds of tea trees through processes such as fixation, shaping, and drying. This process preserves the natural substances of the fresh leaves, and the finished product retains more of the green color of fresh green tea in both its appearance and the brewed tea soup. Screening is an important step in the refining process of green tea, and its quality determines the grading of green tea.

[0003] In the process of processing and grading green tea, grading machines are often used to screen and classify green tea to determine its quality and price segmentation for sale. However, the current drum green tea grading machines still have the following defects in use.

[0004] 1. When green tea is placed down for grading and screening, it tends to pile up and conduct, making it difficult for the green tea on top to be evenly distributed for grading and screening, resulting in poor grading effect; 2. When the rotating drum screens green tea, there is no limiting mechanism between the two screens with different aperture sizes, which means that the green tea stays in each section of the screen for a short time during the screening process, resulting in insufficient screening and affecting the screening quality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a grading machine for green tea processing.

[0006] The technical solution adopted to solve the above-mentioned technical problems is: a grading machine for green tea processing, including an inclined support frame, in which a roller sieve assembly for grading and screening green tea is inclinedly arranged, and below the roller sieve assembly is a drive assembly for driving the roller sieve assembly to run. A feed hopper communicating with the roller sieve assembly is fixedly connected to the right side of the inclined support frame, and a uniform feeding assembly is provided in the feed hopper. The uniform feeding assembly is drivenly connected to the roller sieve assembly. The roller sieve assembly has a green tea limiting assembly inside to block green tea. A threaded groove that is threadedly engaged with the green tea limiting assembly is opened on the left side of the inclined support frame. Three discharge plates are arranged below the roller sieve assembly.

[0007] Furthermore, the drum screening assembly includes a drum frame rotatably connected to the inner wall of the inclined support frame. The right end of the drum frame is fixedly connected to a feed pipe rotatably connected to the feed hopper. A toothed ring is sleeved and fixed on the outer wall of the drum frame. Screen 1, screen 2, and screen 3 are fixedly connected to the inner wall of the drum frame in sequence from low to high, and the aperture of screen 1, screen 2, and screen 3 decreases in sequence. Several dispersing plates are fixedly connected at equal intervals along the rotation axis to the inner wall of screen 1, screen 2, and screen 3.

[0008] Through the above technical solution, the screens are arranged from low to high with decreasing aperture, realizing step-by-step screening of green tea and improving grading accuracy. The dispersing plate on the inner wall moves the green tea with the rotation of the drum to prevent accumulation, ensuring full contact between the green tea and the screen, improving screening uniformity, multi-stage sorting improves efficiency, the dispersing plate enhances the screening effect, and the structure is compact.

[0009] Furthermore, the drive assembly includes a rotating shaft and a motor. There are two rotating shafts, both of which are rotatably mounted on the inner side wall of the inclined support frame. A gear is fixedly connected to the outer side wall of each rotating shaft, and the gear meshes with a gear ring. The motor is fixedly mounted on the outer side wall of the inclined support frame, and the output end of the motor is fixedly connected to one end of the rotating shaft.

[0010] Through the above technical solution, the motor-driven dual rotating shafts provide more stable power transmission, and the meshing of gear one with the gear ring ensures smooth rotation of the cylinder frame, providing stable and reliable drive, reducing vibration, and extending equipment life.

[0011] Furthermore, the uniform feeding assembly includes a fixed base fixedly installed at the top of the inclined support frame. A rotating rod is rotatably connected through the side wall of the fixed base. A gear two is fixedly connected to the left end of the rotating rod, and the gear two meshes with a gear ring. The right end of the rotating rod penetrates the side wall of the feeding hopper. Several isolation plates are fixedly connected at equal intervals along the rotation axis to the side wall of the rotating rod located inside the feeding hopper.

[0012] Through the above technical solution, the rotating rod is driven to rotate by the meshing transmission of the gear ring and the second gear. The rotating rod drives the isolation plate to rotate, and the green tea in the feed hopper is introduced into the drum in sections to achieve uniform feeding and avoid uneven screening caused by instantaneous overload.

[0013] Furthermore, the green tea limiting component includes a servo motor and a fixing frame. The fixing frame is fixedly installed on the left side wall of the inclined support frame. A sliding groove is provided on the top of the fixing frame. A slider is provided at the bottom of the servo motor. The outer side wall of the slider is slidably connected to the inner side wall of the sliding groove. A screw is fixedly connected to the output end of the servo motor. The outer side wall of the screw is threadedly connected to the inner wall of the threaded groove. A baffle is rotatably connected to one end of the screw located on the cylinder frame. A limiting groove corresponding to the position of the dispersing plate is provided on the side wall of the baffle. The side wall of the dispersing plate is in sliding contact with the inner wall of the limiting groove.

[0014] Through the above technical solution, the servo motor can precisely adjust the position of the baffle by the threaded engagement of the screw and the threaded groove, controlling the residence time of green tea in the drum to adapt to the sieving requirements of different green teas. The limiting groove of the baffle and the dispersing plate slide together to limit the overflow of green tea while avoiding damage to the leaves and improving the sieving quality. The sliding engagement of the slider and the chute ensures the linear movement of the baffle, and the adjustment process is stable and reliable.

[0015] Furthermore, the screens one, two, and three correspond to the positions of the three discharge plates, respectively.

[0016] Through the above technical solution, each layer of screen corresponds to an independent discharge plate, realizing the directional collection of green tea after grading, reducing cross-contamination, and improving production efficiency.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) By setting up the drum sieving component and the green tea limiting component, the drum sieving component can realize the three-level fine grading of green tea. The three discharge plates collect different grades of green tea respectively, with clear classification and avoidance of mixing. At the same time, the green tea can be stirred during sieving to prevent accumulation and ensure that the green tea is in full contact with the screen, thereby improving the uniformity of sieving. The green tea limiting component can precisely adjust the position of the baffle to control the residence time of green tea in each section of the drum, adapt to the sieving requirements of different green teas, and improve the sieving quality.

[0019] (2) Through the set drive component and uniform feeding component, the drive component can synchronously link the uniform feeding component and the drum screening component to operate. The drum screening component saves power resources, and the uniform feeding component introduces the green tea in the feed hopper into the drum in segments to achieve uniform feeding and avoid uneven screening caused by instantaneous overload. Attached Figure Description

[0020] Figure 1 This is a perspective view of a grading machine for green tea processing according to this utility model;

[0021] Figure 2 This is a structural diagram of a grading machine for green tea processing according to this utility model;

[0022] Figure 3 This is a perspective view of the drive component of a grading machine for green tea processing according to this utility model;

[0023] Figure 4 This is a three-dimensional I-shaped view of a uniform feeding component of a grading machine for green tea processing according to this utility model;

[0024] Figure 5 This is a structural diagram of the green tea limiting component of a grading machine for green tea processing according to this utility model.

[0025] Reference numerals: 1. Inclined support frame; 2. Drum screening assembly; 3. Drive assembly; 4. Feed hopper; 5. Uniform feeding assembly; 6. Green tea limiting assembly; 7. Discharge plate; 101. Threaded groove; 201. Cylinder frame; 2011. Feed pipe; 202. Gear ring; 203. Screen one; 204. Screen two; 205. Screen three; 206. Dispersing plate; 301. Rotating shaft; 302. Gear one; 303. Motor; 501. Fixed base; 502. Rotating rod; 503. Isolation plate; 504. Gear two; 601. Servo motor; 602. Slider; 603. Screw; 604. Baffle; 6041. Limiting groove; 605. Fixed frame; 606. Slide groove. Detailed Implementation

[0026] 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.

[0027] like Figures 1-5 As shown, a green tea grading machine of this embodiment includes an inclined support frame 1, a roller sieve assembly 2 for grading and screening green tea is inclinedly arranged inside the inclined support frame 1, a drive assembly 3 for driving the roller sieve assembly 2 is provided below the roller sieve assembly 2, a feed hopper 4 communicating with the roller sieve assembly 2 is fixedly connected to the right side of the inclined support frame 1, a uniform feeding assembly 5 is provided inside the feed hopper 4, the uniform feeding assembly 5 is connected to the roller sieve assembly 2 in a transmission manner, a green tea limiting assembly 6 for blocking green tea is provided inside the roller sieve assembly 2, a threaded groove 101 for threaded engagement with the green tea limiting assembly 6 is opened on the left side of the inclined support frame 1, and three discharge plates 7 are arranged below the roller sieve assembly 2.

[0028] The drum screening assembly 2 includes a drum frame 201 rotatably connected to the inner wall of the inclined support frame 1. A feed pipe 2011 rotatably connected to the feed hopper 4 is fixed to the right end of the drum frame 201. A toothed ring 202 is sleeved and fixed to the outer wall of the drum frame 201. Screens 203, 204, and 305 are sequentially fixed to the inner wall of the drum frame 201 from low to high, with the apertures of screens 203, 204, and 305 decreasing sequentially. The inner walls of screens 203, 204, and 305 are equidistantly fixed along the rotation axis. There are several dispersing plates 206, and the screens are arranged from low to high with decreasing apertures, which realizes the step-by-step screening of green tea and improves the grading accuracy. The dispersing plates 206 on the inner wall move the green tea with the rotation of the drum to prevent accumulation and ensure that the green tea is in full contact with the screens, thus improving the screening uniformity. Multi-stage sorting improves efficiency. The dispersing plates 206 enhance the screening effect and have a compact structure. When screening green tea, the green tea enters the drum from the feed hopper 4. When the drum rotates, the green tea passes through the screens 205, 204, and 203 in sequence according to the tilt angle.

[0029] Screen 1 (203), Screen 2 (204), and Screen 3 (205) correspond to the positions of the three discharge plates 7, with each screen layer corresponding to an independent discharge plate 7. This enables the directional collection of green tea after grading, reduces cross-contamination, and improves production efficiency.

[0030] The drive assembly 3 includes a rotating shaft 301 and a motor 303. There are two rotating shafts 301, both of which are rotatably mounted on the inner side wall of the inclined support frame 1. Gear 302 is fixedly connected to the outer side wall of each rotating shaft 301. Gear 302 meshes with the gear ring 202. The motor 303 is fixedly mounted on the outer side wall of the inclined support frame 1. The output end of the motor 303 is fixedly connected to one end of the rotating shaft 301. The motor 303 drives the two rotating shafts 301 to provide more stable power transmission. The meshing of gear 302 with the gear ring 202 ensures that the drum frame 201 rotates smoothly, providing stable and reliable drive, reducing vibration, and extending the equipment life. During operation, the motor 303 drives the rotating shaft 301 to rotate, which drives gear 302 to rotate. Through the meshing transmission with the gear ring 202, the drum rotates.

[0031] The uniform feeding assembly 5 includes a fixed base 501 fixedly installed at the top of the inclined support frame 1. A rotating rod 502 is rotatably connected through the side wall of the fixed base 501. A gear 504 is fixedly connected to the left end of the rotating rod 502. The gear 504 meshes with the gear ring 202. The right end of the rotating rod 502 passes through the side wall of the feeding hopper 4. Several isolation plates 503 are fixedly connected at equal intervals along the rotation axis on the side wall of the rotating rod 502 located inside the feeding hopper 4. The rotating rod 502 is driven to rotate through the meshing of the gear ring 202 and the gear 504. The rotating rod 502 drives the isolation plates 503 to rotate, so that the green tea in the feeding hopper 4 is introduced into the drum in sections to achieve uniform feeding and avoid uneven screening caused by instantaneous overload.

[0032] The green tea limiting component 6 includes a servo motor 601 and a fixing frame 605. The fixing frame 605 is fixedly installed on the left side wall of the inclined support frame 1. A sliding groove 606 is provided on the top of the fixing frame 605. A slider 602 is provided at the bottom of the servo motor 601. The outer side wall of the slider 602 is slidably connected to the inner side wall of the sliding groove 606. A screw 603 is fixedly connected to the output end of the servo motor 601. The outer side wall of the screw 603 is threadedly connected to the inner wall of the threaded groove 101. A baffle 604 is rotatably connected to one end of the screw 603 located on the cylinder frame 201. A limiting groove 6041 corresponding to the position of the dispersing plate 206 is provided on the side wall of the baffle 604. The side wall of the dispersing plate 206 is in sliding contact with the inner wall of the limiting groove 6041. The screw 603 and the… The threaded engagement of the threaded groove 101 allows the servo motor 601 to precisely adjust the position of the baffle 604, controlling the residence time of green tea within the drum and adapting to the sieving requirements of different green teas. The limiting groove 6041 of the baffle 604 slides in engagement with the dispersing plate 206, limiting green tea overflow while preventing damage to the leaves and improving sieving quality. The sliding engagement of the slider 602 with the chute 606 ensures the linear movement of the baffle 604, making the adjustment process smooth and reliable. When adjusting the blocking position of the baffle 604 on the green tea, the servo motor 601 drives the screw 603 to rotate. By cooperating with the threaded groove 101 to adjust the position of the screw 603, the slider 602 of the servo motor 601 is simultaneously driven to slide along the chute 606, thereby arbitrarily adjusting the position of the baffle 604.

[0033] The working principle of this embodiment is as follows: When in use, green tea is poured into the feed hopper 4. At this time, the motor 303 is started. The motor 303 drives the rotating shaft 301 to rotate, which drives the gear 1 302 to rotate. Through the meshing transmission with the gear ring 202, the drum is driven to rotate. The meshing transmission between the gear ring 202 and the gear 2 504 drives the rotating rod 502 to rotate. The rotating rod 502 drives the isolation plate 503 to rotate, so that the green tea in the feed hopper 4 is introduced into the drum in sections to achieve uniform feeding.

[0034] Afterwards, green tea enters the drum from the feed hopper 4. As the drum rotates, the green tea passes through screen 3 205, screen 2 204, and screen 1 203 in sequence according to the tilt angle. The dispersing plate 206 moves the green tea with the rotation of the drum to prevent accumulation. When the baffle 604 is adjusted to block the green tea and increase the green tea retention time, the servo motor 601 drives the screw 603 to rotate. By cooperating with the threaded groove 101, the position of the screw 603 is adjusted, and at the same time, the slider 602 of the servo motor 601 slides along the slide groove 606, thereby arbitrarily adjusting the position of the baffle 604 to adapt to the sieving requirements of different green teas. The sieved green tea falls into the independent discharge plate 7 corresponding to each screen, realizing the directional collection of the graded green tea.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A grader for green tea processing comprising an inclined support frame (1), characterized in that: The inclined support frame (1) is inclinedly provided with a drum sieve assembly (2) for grading and screening green tea. Below the drum sieve assembly (2) is a drive assembly (3) for driving the drum sieve assembly (2). The right side of the inclined support frame (1) is fixedly connected to a feed hopper (4) that communicates with the drum sieve assembly (2). The feed hopper (4) is provided with a uniform feeding assembly (5). The uniform feeding assembly (5) is connected to the drum sieve assembly (2) in a transmission connection. The inside of the drum sieve assembly (2) is provided with a green tea limiting assembly (6) to block green tea. The left side of the inclined support frame (1) is provided with a threaded groove (101) that is threadedly engaged with the green tea limiting assembly (6). Three discharge plates (7) are arranged below the drum sieve assembly (2).

2. A grader for processing green tea according to claim 1, characterized in that, The drum screening assembly (2) includes a cylinder frame (201) rotatably connected to the inner wall of the inclined support frame (1). The right end of the cylinder frame (201) is fixedly connected to a feed pipe (2011) rotatably connected to the feed hopper (4). A toothed ring (202) is sleeved and fixed on the outer wall of the cylinder frame (201). The inner wall of the cylinder frame (201) is fixedly connected to screen one (203), screen two (204), and screen three (205) in sequence from low to high. The aperture of screen one (203), screen two (204), and screen three (205) decreases in sequence. Several dispersing plates (206) are fixedly connected at equal intervals along the rotation axis on the inner wall of screen one (203), screen two (204), and screen three (205).

3. A grader for processing green tea according to claim 1, characterized in that, The drive assembly (3) includes a rotating shaft (301) and a motor (303). There are two rotating shafts (301) that are rotatably mounted on the inner side wall of the inclined support frame (1). A gear (302) is fixedly connected to the outer side wall of each rotating shaft (301). The gears (302) mesh with the gear ring (202). The motor (303) is fixedly mounted on the outer side wall of the inclined support frame (1). The output end of the motor (303) is fixedly connected to one end of the rotating shaft (301).

4. The grading machine for processing green tea according to claim 1, characterized by The uniform feeding assembly (5) includes a fixed seat (501) fixedly installed at the top of the inclined support frame (1). A rotating rod (502) is rotatably connected through the side wall of the fixed seat (501). A gear two (504) is fixedly connected to the left end of the rotating rod (502). The gear two (504) meshes with the gear ring (202). The right end of the rotating rod (502) penetrates the side wall of the feeding hopper (4). Several isolation plates (503) are fixedly connected at equal intervals along the rotation axis on the side wall of the rotating rod (502) inside the feeding hopper (4).

5. The grading machine for processing green tea according to claim 1, characterized by The green tea limiting component (6) includes a servo motor (601) and a fixing frame (605). The fixing frame (605) is fixedly installed on the left side wall of the inclined support frame (1). The top of the fixing frame (605) is provided with a sliding groove (606). The bottom end of the servo motor (601) is provided with a slider (602). The outer side wall of the slider (602) is slidably connected to the inner side wall of the sliding groove (606). The output end of the servo motor (601) is fixedly connected with a screw (603). The outer side wall of the screw (603) is threadedly connected to the inner wall of the threaded groove (101). The end of the screw (603) located on the cylinder frame (201) is rotatably connected with a baffle (604). The side wall of the baffle (604) is provided with a limiting groove (6041) corresponding to the position of the dispersing plate (206). The side wall of the dispersing plate (206) is in sliding contact with the inner wall of the limiting groove (6041).

6. A grader for processing green tea according to claim 2, characterized in that, The screens 1 (203), 2 (204), and 3 (205) correspond to the positions of the three discharge plates (7), respectively.

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