A tea leaf spreading device
By using multi-stage inclined baffles and height and angle adjustment mechanisms in the tea-spreading equipment, the problems of insufficient coverage, splashing, and damage to tender leaves in the tea-spreading equipment have been solved, achieving uniform spreading and rapid adjustment of tea leaves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YICHANG JINGSHAN YUYA TEA CO
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-16
AI Technical Summary
Existing tea-spreading equipment suffers from insufficient spreading coverage, tea splattering, and damage to tender leaves. Furthermore, the adjustment process is cumbersome and it is difficult to adapt to the spreading thickness requirements of different types of tea.
The conveyor belt is fitted around the horizontally arranged drive roller and driven roller, and features a multi-stage inclined baffle system and height and angle adjustment mechanism. Combined with a flexible design, it achieves gradual flattening and effective constraint of the tea leaves.
It improves the uniformity of spreading and the integrity of tea leaves, reduces blind spots and splashing, protects tender leaves, and makes the adjustment process faster and more precise.
Smart Images
Figure CN224356946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea production, and in particular to a tea-spreading device. Background Technology
[0002] In the tea production and processing industry, the leveling process has a decisive impact on tea quality. Currently, mainstream mechanical leveling equipment generally adopts a rotary leveling roller structure, such as the Chinese patent application number CN202422306327.3, which uses a motor to drive circumferentially distributed leveling plates to move the tea leaves for leveling. However, this type of structure has significant drawbacks: the rotary leveling plate intermittently leaves the tea leaves during its rotation cycle, resulting in insufficient leveling coverage, with some tea leaves entering the next process without effective processing; the conveyor belt lacks effective restraint structures on both sides, making it easy for tea leaves to spill from the edges during leveling. Although this can be mitigated by adding external baffles, it adds extra cleaning dead zones and maintenance burden; existing leveling height adjustment relies on a bolt positioning structure, requiring repeated loosening of bolts and manual lifting, making the adjustment process cumbersome and time-consuming, and difficult to adapt to the different leveling thickness requirements of different types of tea; more seriously, the rigid rotary leveling plate is at a vertical angle when contacting the tea leaves, which can easily cause mechanical damage to tender leaves, directly affecting the yield of high-value tea products. Therefore, there is an urgent need to develop a new type of tea-leveling device that can achieve full-coverage, low-damage leveling, low-splash conveying, and rapid adjustment capabilities. Utility Model Content
[0003] To address the risks of blind spots, tea splattering, and damage to tender leaves in existing technologies, this utility model proposes a tea-flattening device, the technical solution of which is as follows:
[0004] A tea-spreading device includes a drive roller and a driven roller arranged horizontally and parallel to each other. A conveyor belt is sleeved on the outside of the drive roller and the driven roller. A hopper is provided above the starting end of the conveyor belt. A multi-stage inclined baffle system is provided above the conveyor belt.
[0005] The conveyor belt has a straight section in the middle along its width, and the two sides curve upward to form inclined sections, with the straight section and the inclined section being integrally formed.
[0006] The axial cross-sections of the drive roller and driven roller are matched with the conveyor belt, and include a central cylindrical section and two conical sections on both sides;
[0007] The multi-stage inclined baffle system includes at least two baffles that are sequentially arranged above the conveyor belt along the conveying direction by a bracket. The axis of the baffle in the length direction is perpendicular to the conveying direction. The inclination angle of the baffle surface relative to the horizontal plane increases progressively. An angle adjustment mechanism and a height adjustment mechanism are provided on the side of the baffle away from the conveyor belt to adjust the inclination angle and vertical height of the baffle.
[0008] Furthermore, the inclined section and the straight section of the conveyor belt have a smooth transition, and the surface of the conveyor belt is provided with a textured surface to enhance friction.
[0009] Furthermore, the baffle is a rectangular plate, and the side of the baffle that contacts the tea leaves has rounded corners and is equipped with flexible strips.
[0010] Furthermore, the height adjustment mechanism includes a hollow fixed sleeve vertically mounted above the conveyor belt via a bracket, and a first telescopic rod coaxially slidably inserted into the fixed sleeve. One end of the first telescopic rod is rotatably connected to the center of the side of the baffle away from the conveyor belt, and the rotation surface is parallel to the vertical plane where the conveyor belt is conveying. The first telescopic rod has several positioning holes arranged at equal intervals perpendicular to its own axis. The fixed sleeve is provided with a locking through hole. The height of the first telescopic rod can be fixed by coaxially inserting a pin into the locking through hole and the positioning hole. The angle adjustment mechanism is provided at the rotating connection to fix the angle.
[0011] Furthermore, the height adjustment mechanism also includes a pair of stabilizing sleeves, which are vertically symmetrically arranged on both sides of the fixed sleeve about the conveying direction. A second telescopic rod is coaxially slidably inserted in the stabilizing sleeve, and one end of the second telescopic rod is rotatably connected to the center of the side of the baffle away from the conveyor belt.
[0012] Furthermore, the angle adjustment mechanism includes an angle adjustment disc vertically arranged on the side of the baffle away from the conveyor belt. The angle adjustment disc is a semi-circular plate, and the angle adjustment disc is coaxial with the rotational connecting shaft of the first telescopic rod and the baffle. A plurality of first angle fixing holes are equally spaced on the angle adjustment disc, and a second angle fixing hole is provided on the first telescopic rod. The angle of the baffle relative to the conveyor belt can be fixed by inserting pins coaxially into the first angle fixing holes and the second angle fixing holes.
[0013] Furthermore, the multi-stage inclined baffle system includes two baffles that are sequentially arranged above the conveyor belt along the conveying direction by a bracket. The inclination angle of the first baffle along the conveying direction is smaller than that of the second baffle, and the distance between the lower edge of the first baffle and the conveyor belt is greater than the distance between the second baffle and the conveyor belt.
[0014] The beneficial effects of this utility model are as follows: This utility model achieves gradual flattening of tea leaves through a multi-level baffle system with progressively increasing inclination angles, and effectively constrains the flow of tea leaves by combining the conveyor belt structure with a straight center and upturned sides; the height and angle of the baffles are precisely controlled by a multi-level mechanical adjustment mechanism (positioning holes and pins), and combined with the flexible treatment of the baffle edges, it solves the problems of flattening blind spots, tea leaf splashing and damage to tender leaves in traditional processes, and significantly improves the flattening uniformity and tea leaf integrity. Attached Figure Description
[0015] Figure 1This is a top view of the entire utility model;
[0016] Figure 2 This is a side view of the present invention;
[0017] Figure 3 for Figure 2 Enlarged view of point a in the middle;
[0018] Figure 4 This is a partial schematic diagram of the present invention;
[0019] Figure 5 This is a schematic diagram of the baffle angle of this utility model;
[0020] Figure 6 for Figure 5 Enlarged view of point b in the middle.
[0021] In the above figures: drive roller 1, cylindrical section 101, conical section 102, driven roller 2, conveyor belt 3, straight section 31, inclined section 32, hopper 4, baffle 5, bracket 6, fixed sleeve 7, first telescopic rod 8, positioning hole 81, locking through hole 71, stabilizing sleeve 10, second telescopic rod 11, angle adjusting disc 12, first angle fixing hole 121, second angle fixing hole 122, rounded corner 51, flexible strip 52. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] like Figure 1 , Figure 2 , Figure 5 As shown, a tea-spreading device includes a horizontally arranged and parallel drive roller 1 and driven roller 2. A conveyor belt 3 is sleeved on the outside of the drive roller 1 and driven roller 2. A hopper 4 is provided above the starting end of the conveyor belt 3. A multi-stage inclined baffle system is provided above the conveyor belt 3. The middle part of the conveyor belt 3 along the width direction is a straight section 31, and the two sides are curved upward to form inclined sections 32. The straight section 31 and the inclined section 32 are integrally formed. The axial cross section of the drive roller 1 and driven roller 2 matches the conveyor belt 3, including a central cylindrical section 101 and two conical sections 102 on both sides. The multi-stage inclined baffle system includes at least two baffles 5 that are sequentially arranged above the conveyor belt 3 along the conveying direction by a bracket 6. The axis of the baffle 5 in the length direction is perpendicular to the conveying direction. The inclination angle of the baffle 5 relative to the horizontal plane increases progressively. An angle adjustment mechanism and a height adjustment mechanism are provided on the side of the baffle 5 away from the conveyor belt 3 to adjust the inclination angle and vertical height of the baffle 5.
[0024] like Figure 3As shown, preferably, the inclined section 32 and the straight section 31 of the conveyor belt 3 are smoothly transitioned, and the surface of the conveyor belt 3 is provided with texture to enhance friction, reduce tea leaves getting stuck and damaged, enhance friction to prevent tea leaves from sliding, and improve the flatness and uniformity of spreading.
[0025] like Figure 1 , Figure 5 Preferably, the baffle 5 is a rectangular plate, and the side of the baffle 5 that contacts the tea leaves is provided with rounded corners 51 and is equipped with flexible strips 52 to avoid scratching the tea leaves and to provide flexible cushioning to protect the tender leaves.
[0026] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, preferably, the height adjustment mechanism includes a hollow fixed sleeve 7 vertically mounted above the conveyor belt 3 via a bracket 6, and a first telescopic rod 8 coaxially slidably inserted into the fixed sleeve 7. One end of the first telescopic rod 8 is rotatably connected to the center of the side of the baffle 5 away from the conveyor belt 3, and the rotating surface is parallel to the vertical plane where the conveying direction of the conveyor belt 3 is located. The first telescopic rod 8 has a plurality of positioning holes 81 arranged at equal intervals perpendicular to its own axis. The fixed sleeve 7 is provided with a locking through hole 71. The height of the first telescopic rod 8 can be fixed by coaxially inserting a pin into the locking through hole 71 and the positioning hole 81. The angle adjustment mechanism is set at the rotating connection to fix the angle. Preferably, the angle adjustment mechanism includes an angle adjustment disc 12 vertically arranged on the side of the baffle 5 away from the conveyor belt 3. The angle adjustment disc 12 is a semi-circular arc-shaped plate, and the angle adjustment disc 12 is coaxial with the rotational connecting shaft of the first telescopic rod 8 and the baffle 5. A plurality of first angle fixing holes 121 are evenly spaced on the angle adjustment disc 12, and a second angle fixing hole 122 is provided on the first telescopic rod 8. The angle of the baffle 5 relative to the conveyor belt 3 can be fixed by coaxially inserting pins into the first angle fixing holes 121 and the second angle fixing holes 122. This allows for rapid adjustment of the baffle 5 height to adapt to different tea leaf thicknesses, precise control of the baffle 5's tilt angle, and optimized flattening force.
[0027] like Figure 2 As shown, preferably, the height adjustment mechanism further includes a pair of stabilizing sleeves 10, which are vertically symmetrically arranged on both sides of the fixed sleeve 7 about the conveying direction. A second telescopic rod 11 is coaxially slidably inserted in the stabilizing sleeve 10, and one end of the second telescopic rod 11 is rotatably connected to the center of the side of the baffle 5 away from the conveyor belt 3.
[0028] like Figure 1 , Figure 2 , Figure 5As shown, preferably, the multi-stage inclined baffle system includes two baffles 5 sequentially arranged above the conveyor belt 3 along the conveying direction via a bracket 6. The inclination angle of the first baffle 5 along the conveying direction is smaller than that of the second baffle 5, and the distance between the lower edge of the first baffle 5 and the conveyor belt 3 is greater than the distance between the second baffle 5 and the conveyor belt 3. The first baffle 5 is gently pre-flattened, and the second baffle 5 is flattened a second time, improving uniformity and reducing the breakage rate of tea leaves.
[0029] like Figure 2 , Figure 4 As shown, preferably, the connection between the fixing sleeve 7 and the bracket 6 is thickened to enhance stability, and the end of the fixing sleeve 7 away from the bracket 6 is also thickened to increase structural strength.
[0030] The normal operation of this tea-spreading device depends on the following external conditions and components (these prerequisites are not explicitly stated in the technical solution, but are necessary for the device to function):
[0031] Additional drive unit: A motor or other power source (such as a geared motor) is required to drive the drive roller 1 to make the conveyor belt 3 rotate. The conveyor belt 3 also needs a tensioning mechanism and a support mechanism to prevent the conveyor belt 3 from becoming loose, slipping, sagging, or deforming (the above are routine adjustments, so they will not be described in detail).
[0032] Power supply: The drive unit is electric and requires a stable power supply.
[0033] Tea input source: The feed hopper 4 needs to be connected to the tea supply system (such as a storage silo or manual feeding device) to continuously input tea.
[0034] Basic support structure: The device needs to be installed on a stable bracket 6 to ensure the stability of the drive roller 1, the driven roller 2 and the bracket 6.
[0035] Operators or control systems: The height and angle adjustment mechanisms require manual operation (such as inserting and removing pins, and the middle section of the pins used in this invention is smooth, while the tail is threaded for easy fixing), thus requiring operators.
[0036] Maintenance tools: The adjustment mechanism may require simple tools (such as pins or wrenches) to secure it.
[0037] Environmental conditions: The device should be used in a dry and clean environment to avoid the tea getting damp or contaminated.
[0038] Complete usage instructions:
[0039] First, adjust baffle 5: pull out the pin, slide the telescopic rod to the target height, and then lock the pin. Rotate the angle adjustment dial 12 to the target tilt angle, and then lock the pin.
[0040] The operating process is as follows: The drive motor is started, and conveyor belt 3 runs at a constant speed. Tea leaves fall from the hopper 4 into the middle of conveyor belt 3, with raised sections on both sides to prevent scattering. The tea leaves pass sequentially through: the first baffle 5: high position with a small inclination angle (pre-flattening to reduce impact); and the second baffle 5: low position with a large inclination angle (secondary flattening to enhance uniformity). The flattened tea leaves are output from the end of conveyor belt 3 and enter the collection or next process. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A tea-spreading device, characterized in that, include: A drive roller (1) and a driven roller (2) are set horizontally and parallel to each other. A conveyor belt (3) is sleeved on the outside of the drive roller (1) and the driven roller (2). A hopper (4) is set above the starting end of the conveyor belt (3). A multi-stage inclined baffle system is set above the conveyor belt (3). The conveyor belt (3) has a straight section (31) in the middle of its width direction, and the two sides curve upward to form an inclined section (32), and the straight section (31) and the inclined section (32) are integrally formed. The axial cross-section of the drive roller (1) and the driven roller (2) matches that of the conveyor belt (3), and includes a central cylindrical section (101) and two conical sections (102) on both sides; The multi-stage inclined baffle system includes at least two baffles (5) arranged sequentially above the conveyor belt (3) along the conveying direction via brackets (6). The axis of the baffle (5) in the length direction is perpendicular to the conveying direction. The inclination angle of the baffle (5) relative to the horizontal plane increases progressively. An angle adjustment mechanism and a height adjustment mechanism are provided on the side of the baffle (5) away from the conveyor belt (3) to adjust the inclination angle and vertical height of the baffle (5).
2. The tea-spreading device according to claim 1, characterized in that: The inclined section (32) and the straight section (31) of the conveyor belt (3) are smoothly transitioned, and the surface of the conveyor belt (3) is provided with texture to enhance friction.
3. The tea-spreading device according to claim 1, characterized in that: The baffle (5) is a rectangular plate, and the side of the baffle (5) that contacts the tea leaves is provided with rounded corners (51) and is equipped with flexible strips (52).
4. The tea-spreading device according to claim 1, characterized in that: The height adjustment mechanism includes a hollow fixed sleeve (7) vertically mounted above the conveyor belt (3) via a bracket (6), and a first telescopic rod (8) coaxially slidably inserted into the fixed sleeve (7). One end of the first telescopic rod (8) is rotatably connected to the center of the side of the baffle (5) away from the conveyor belt (3), and the rotating surface is parallel to the vertical plane where the conveying direction of the conveyor belt (3) is located. The first telescopic rod (8) has several positioning holes (81) arranged at equal intervals perpendicular to its own axis. The fixed sleeve (7) is provided with a locking through hole (71). The height of the first telescopic rod (8) can be fixed by coaxially inserting a pin into the locking through hole (71) and the positioning hole (81). The angle adjustment mechanism is set at the rotating connection to fix the angle.
5. The tea-spreading device according to claim 4, characterized in that: The height adjustment mechanism also includes a pair of stabilizing sleeves (10). The pair of stabilizing sleeves (10) are vertically symmetrically arranged on both sides of the fixed sleeve (7) about the conveying direction. A second telescopic rod (11) is coaxially slidably inserted in the stabilizing sleeve (10). One end of the second telescopic rod (11) is rotatably connected to the center of the side of the baffle (5) away from the conveyor belt (3).
6. The tea-spreading device according to claim 4, characterized in that: The angle adjustment mechanism includes an angle adjustment disc (12) vertically arranged on the side of the baffle (5) away from the conveyor belt (3). The angle adjustment disc (12) is a semi-circular plate, and the angle adjustment disc (12) is coaxial with the rotational connecting shaft of the first telescopic rod (8) and the baffle (5). A number of first angle fixing holes (121) are equally spaced on the angle adjustment disc (12), and a second angle fixing hole (122) is opened on the first telescopic rod (8). The angle of the baffle (5) relative to the conveyor belt (3) can be fixed by inserting a pin coaxially into the first angle fixing hole (121) and the second angle fixing hole (122).
7. The tea-spreading device according to claim 1, characterized in that: The multi-stage inclined baffle system includes two baffles (5) that are sequentially arranged above the conveyor belt (3) along the conveying direction by a bracket (6). The inclination angle of the first baffle (5) along the conveying direction is smaller than that of the second baffle (5), and the distance between the lower edge of the first baffle (5) and the conveyor belt (3) is greater than that between the second baffle (5) and the conveyor belt (3).