A multi-stage swing sorting screen for tea leaves

Abstract

The utility model relates to tea beverage production equipment technical field especially is related to a kind of tea multi-stage swing sorting screen, including support base, sieve tray assembly, and swing mechanism, sieve tray assembly is detachably connected on support base, and sieve tray assembly is drivingly connected with swing mechanism;Sieve tray assembly includes multiple sieve trays of superimposed settings and top cover covered in the top end of sieve tray, each sieve tray is composed of frame and screen, and the adjacent two frames are mutually clamped and connected by setting buckle structure, and the side of each frame is provided with discharge port;Limiting track is set on screen, limiting track extends outward in spiral shape around the center of screen, and the end of limiting track extends to the side of discharge port and is fixedly connected with it. Swing mechanism drives sieve tray assembly to swing, simulate the action when manually shaking screen;Meanwhile by setting spiral limiting track, tea can be guided to move along specific path to discharge port, ensure that tea can be smoothly discharged from screen.

Description

Technical Field

[0001] This utility model relates to the technical field of tea beverage production equipment, and in particular to a multi-stage swing sorting sieve for tea. Background Technology

[0002] With the current trend of large-scale industrial production of tea beverages, the requirements for the efficiency and precision of tea raw material processing are becoming increasingly stringent. Traditional manual shaking of the filter screen is not only labor-intensive and inefficient, but also struggles to guarantee the consistency and accuracy of screening, failing to meet the demands of large-scale production. While existing automated tea screening machines have improved efficiency to some extent, they also have several drawbacks: On the one hand, each layer of screen is equipped with a vibration mechanism, which makes the equipment structure complex and increases manufacturing and maintenance costs; on the other hand, the screen is fixedly connected to the machine body, and after long-term use, tea residue is easy to adhere to the screen. Cleaning requires a lot of time and effort to disassemble the entire screen assembly, and replacement is inconvenient, affecting the continuous operation time of the equipment.

[0003] In addition, during the screening process, some tea leaves may not be able to be discharged smoothly along the discharge port due to unreasonable screen design, resulting in some tea leaves remaining in the screen, causing waste of raw materials, reducing the purity of screening, and thus affecting the quality stability and flavor uniformity of subsequent tea beverage products.

[0004] Therefore, there is an urgent need for a device that has a reasonable structure, is easy to clean and maintain, and can efficiently and accurately sort tea leaves. Utility Model Content

[0005] In order to address the technical deficiencies mentioned in the background section, the purpose of this utility model is to provide a multi-stage oscillating sorting sieve for tea. By mimicking the oscillating structure of a human hand-shaking mechanism, it achieves multi-stage precise filtration of tea leaves, effectively sorting tea leaves of different particle sizes, thereby improving the sorting efficiency and quality of tea leaves.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-stage oscillating sorting sieve for tea includes a support base, a sieve tray assembly for sorting tea, and an oscillating mechanism for driving the sieve tray assembly to oscillate. The sieve tray assembly is detachably connected to the support base and is drively connected to the oscillating mechanism. The sieve tray assembly includes multiple stacked sieve trays and a top cover on top of the sieve trays. Each sieve tray consists of a frame and a screen. Adjacent frames are connected to each other by a snap-fit ​​structure, and each frame has a discharge port on one side. The screen is fixed to the bottom of the frame, and the mesh size of the screen increases from bottom to top. A limiting track is provided on the screen, which extends outward in a spiral shape around the center of the screen, and the end of the limiting track extends to one side of the discharge port and is fixedly connected thereto to form a limiting channel for guiding the tea leaves to move along the discharge port direction.

[0007] Preferably, one side of the frame is provided with an opening for connecting an external cleaning pipe, and a sealing cap is threaded onto the opening.

[0008] Preferably, the discharge port protrudes from one side of the screen plate, and a telescopic pipe is connected to the discharge port, with a collection tank connected to the end of the telescopic pipe.

[0009] Preferably, the top cover has a feeding port, and the inner wall of the feeding port is configured as a threaded interface for connecting with an external tea conveying pipe.

[0010] Preferably, the buckle structure includes a clamp and a lock. The clamp is composed of two semi-circular clamp bodies, which are spliced ​​and locked together by the lock. The inner side of the clamp body is provided with a slot that matches the edge of the frame. The slot is a trapezoidal structure.

[0011] Preferably, the support base has an inverted conical structure, and the top of the support base is provided with a base plate that matches the diameter of the screen. One end of the base plate is connected to the screen, and a swing fixing rod is connected between the outer side of the base plate and the support base. The swing fixing rod is distributed around the circumference of the base plate, and both ends of the swing fixing rod are fixed to the base plate and the support base respectively by support feet.

[0012] Preferably, the swing mechanism includes a drive motor, a rotating shaft, and a swing arm. The drive motor is fixedly connected to the support base, and a belt pulley transmission assembly is connected between the output end of the drive motor and the rotating shaft. The rotating shaft and the axis of the chassis are located on the same axis, and one rotating end is connected to the bottom end of the chassis, while the other end is connected to the belt pulley assembly. The swing arm is sleeved on the end of the rotating shaft connected to the chassis, and one end of the swing arm abuts against the inner side of the chassis.

[0013] Preferably, the swing mechanism includes a drive motor, a rotating shaft, and a swing arm. The drive motor is fixedly connected to the support base, and a belt pulley transmission assembly is connected between the output end of the drive motor and the rotating shaft. The rotating shaft and the axis of the chassis are located on the same axis, and one end of the rotating shaft is connected to the bottom end of the chassis, while the other end is connected to the belt pulley transmission assembly. The swing arm is sleeved on the end of the rotating shaft connected to the chassis, and one end of the swing arm abuts against the inner side of the chassis.

[0014] In summary, the beneficial effects of this utility model are as follows: 1. This utility model uses a swing mechanism to drive the sieve plate assembly to swing, simulating the action of manually shaking a sieve. This causes the tea leaves to move on the sieve in a similar trajectory to manual sifting. Compared with traditional vibration sifting, this allows the tea leaves to move and be sifted more fully on the sieve, effectively improving the sifting efficiency, accelerating the production pace, and meeting the needs of large-scale production. Furthermore, the simple and reasonable swing mechanism drives the sieve plate assembly, simplifying the equipment structure, reducing manufacturing costs, and ensuring high equipment stability, while also reducing the difficulty and cost of later maintenance.

[0015] 2. This utility model, through the setting of multi-level sieves with different mesh sizes, can accurately grade and screen tea leaves according to their particle size, improve the accuracy of tea sorting, and ensure the quality stability of different grades of tea raw materials; at the same time, the spiral-shaped limiting track set on the sieve can guide the tea leaves to move smoothly towards the discharge port, effectively avoiding tea leaves remaining in the sieve, reducing raw material waste, improving raw material utilization, and thus helping to improve the quality uniformity of subsequent tea beverage products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the multi-stage oscillating sorting sieve for tea of ​​this utility model; Figure 2 This is a front view of the multi-stage swing sorting sieve for tea of ​​this utility model; Figure 3 This is an exploded view of the multi-stage oscillating sorting sieve for tea according to this utility model; Figure 4 This is a vertical sectional view of the multi-stage oscillating sorting sieve for tea according to this utility model; Figure 5 This is a cross-sectional view of the multi-stage swing sorting sieve for tea of ​​this utility model.

[0017] Explanation of the reference numerals in the figure: 1. Support base; 2. Screen tray; 21. Frame; 211. Discharge port; 212. Opening; 213. Sealing cover; 22. Screen mesh; 3. Swinging mechanism; 31. Drive motor; 32. Rotating shaft; 33. Swinging arm; 34. Belt pulley transmission assembly; 341. Drive pulley; 342. Driven pulley; 343. Transmission belt; 4. Top cover; 41. Feed port; 5. Buckle structure; 51. Clamp; 52. Lock; 6. Restriction track; 7. Telescopic tube; 8. Collection tank; 9. Chassis; 10. Swing fixing rod. Detailed Implementation

[0018] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0019] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only 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, the above terms should not be construed as limitations on this utility model.

[0020] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0021] The following is in conjunction with the appendix Figure 1-5 The present invention provides a more detailed description of an embodiment of a multi-stage swing sorting sieve for tea.

[0022] A multi-stage oscillating sorting sieve for tea, such as Figures 1 to 3As shown, the assembly includes a support base 1, a sieve tray 2 assembly for sorting tea leaves, and a swing mechanism 3 for driving the sieve tray 2 assembly to swing. The sieve tray 2 assembly is detachably connected to the support base 1, and the sieve tray 2 assembly is connected to the swing mechanism 3 in a transmission manner. The sieve tray 2 assembly includes multiple stacked sieve trays 2 and a top cover 4 covering the top of the sieve tray 2. Each sieve tray 2 consists of a frame 21 and a screen 22. Adjacent frames 21 are connected to each other by a snap-fit ​​structure 5, and each frame 21 has a discharge port 211 on one side. The screen 22 is fixed to the bottom end of the frame 21, and the mesh size of the screen 22 increases from bottom to top. A limiting track 6 extends outward in a spiral shape around the center of the screen 22, and the end of the limiting track 6 extends to one side of the discharge port 211 and is fixedly connected thereto, so as to form a limiting channel for guiding the tea leaves to move along the direction of the discharge port 211.

[0023] Specifically, the number and mesh size of the sieves 2 can be selected according to the specific sorting accuracy requirements. In this invention, 2-5 sieves are preferred. The mesh size of the sieves 22 decreases sequentially from top to bottom. For example, in this embodiment, the mesh sizes of the sieves 22 are 80 mesh, 50 mesh, and 20 mesh. When sorting tea leaves, tea leaves of different sizes enter the sieve 2 assembly through the feeding port 41. During the swaying process of the sieve 2, smaller tea leaves will pass through the upper 80-mesh sieve 22 first, while larger tea leaves remain on the sieve 22. The smaller tea leaves mixed in continue to move to the lower 50-mesh sieve 22 for further sorting. Through this multi-stage sorting method, tea leaves can be accurately graded according to particle size, effectively improving the accuracy of tea sorting, ensuring the quality stability of different grades of tea raw materials, and providing a strong guarantee for the quality uniformity of subsequent tea beverage products.

[0024] It is worth noting that, during the oscillation of the sieve disc 2, guided by the spirally distributed limiting tracks 6 on the sieve mesh 22, the particles remaining on the sieve mesh 22 will move towards the discharge port 211 along the limiting channels formed by the limiting tracks. This effectively prevents tea leaves from randomly scattering or remaining on the sieve mesh 22, ensuring that the tea leaves can be smoothly discharged and collected through the discharge port 211. They then fall into the collection tank 8 through the telescopic pipe 7.

[0025] In this embodiment, as Figure 2 As shown, one side of the frame 21 is also provided with an opening 212 for connecting an external cleaning pipe, and a sealing cap 213 is threaded onto the opening 212.

[0026] Specifically, when cleaning the screen 22 is required, unscrew the sealing cap 213, connect the external cleaning pipe to the opening 212, and use the pressure and flow of the external cleaning medium to rinse and clean the screen 22. After cleaning, screw the sealing cap 213 back on. This setup allows for convenient cleaning of the screen 22 without disassembling it, maintaining the permeability and screening effect of the screen 22, extending the service life of the screen 22, and reducing the impact of screen 22 blockage on screening efficiency and tea quality.

[0027] In this embodiment, the discharge port 211 protrudes from one side of the screen plate 2, and a telescopic pipe 7 is connected to the discharge port 211, with a collection tank 8 connected to the end of the telescopic pipe 7.

[0028] Specifically, during installation, the discharge port 211 is first welded or secured to one side of the frame 21 of the sieve disc 2 using other secure methods, making it protrude outwards. Then, one end of the telescopic tube 7 is connected to the discharge port 211, using clamps 51 or similar methods to ensure a tight connection, while the other end is connected to the collection tank 8. This allows the tea leaves to be guided on the screen 22 via the limiting track 6 to the discharge port 211, and then fall into the collection tank 8 through the telescopic tube 7. Because the telescopic tube 7 is extendable, it can be flexibly adjusted according to the actual space and the position of the collection tank 8 during installation, facilitating the placement and replacement of the collection tank 8. This setup effectively collects the screened tea leaves, prevents spillage, and allows for convenient replacement of the collection tank 8 as needed, improving the continuity and convenience of the screening process.

[0029] In this embodiment, the top cover 4 has a feeding port 41, and the inner wall of the feeding port 41 is configured with a threaded interface for connection with an external tea conveying pipe. Tea leaves enter the sieve tray 2 assembly through the feeding port 41 via the external conveying pipe. This threaded connection ensures a tight seal, preventing leakage of tea leaves during transport. It also facilitates the installation and disassembly of the external conveying pipe, allowing the equipment to interface with different tea conveying systems and improving its versatility and ease of use.

[0030] In this embodiment, as Figure 3 As shown, the buckle structure 5 includes a clamp 51 and a lock 52. The clamp 51 is composed of two semi-circular clamp bodies, which are spliced ​​and locked together by the lock 52. The inner side of the clamp body is provided with a slot that matches the edge of the frame 21. The slot is a trapezoidal structure.

[0031] Specifically, two hoops are wrapped around the edges of the adjacent screen plate 2 frame 21, so that the edges of the frame 21 are embedded in the slots, and then the two hoops are spliced ​​and locked together by the locking buckle 52. For disassembly, the locking buckle 52 is released to separate the two hoops. This snap-fit ​​structure 5 is convenient and quick to install and disassemble. Compared with traditional bolt connections, it can significantly reduce the time required for disassembling and installing the screen 22, facilitate cleaning and replacement of the screen 22, and improve the maintenance efficiency of the equipment.

[0032] In this embodiment, the support base 1 has an inverted conical structure, and the top of the support base 1 is provided with a base plate 9 that matches the diameter of the screen 22. One end of the base plate 9 is connected to the screen 22, and a swing fixing rod 10 is connected between the outer side of the base plate 9 and the support base 1. The swing fixing rod 10 is distributed around the circumference of the base plate 9, and the two ends of the swing fixing rod 10 are fixed to the base plate 9 and the support base 1 respectively by support feet.

[0033] Specifically, the inverted conical structure gives the support base 1 good stability, and the swing fixing rod 10 can effectively support and fix the chassis 9, ensuring that the screen plate 2 assembly operates stably during the swinging process, reducing equipment shaking and vibration, thereby improving the screening accuracy and the service life of the equipment.

[0034] In this embodiment, as Figure 4 , 5 As shown, the swing mechanism 3 includes a drive motor 31, a rotating shaft 32, and a swing arm 33. The drive motor 31 is fixedly connected to the support base 1, and a belt pulley transmission assembly 34 is connected between the output end of the drive motor 31 and the rotating shaft 32. The rotating shaft 32 and the axis of the chassis 9 are located on the same axis, and one end of the rotating shaft 32 is connected to the bottom end of the chassis 9, and the other end is connected to the belt pulley transmission assembly 34. The swing arm 33 is sleeved on the end of the rotating shaft 32 connected to the chassis 9, and one end of the swing arm 33 abuts against the inner side of the chassis 9.

[0035] Specifically, the pulley assembly 34 includes a driving pulley 341, a driven pulley 342, and a transmission belt 343. The driving pulley 341 is mounted on the output shaft of the drive motor 31, the driven pulley 342 is mounted on the rotating shaft 32, and the transmission belt 343 is sleeved on the driving pulley 341 and the driven pulley 342. During operation, the drive motor 31 drives the driving pulley 341 to rotate, which in turn drives the driven pulley 342 and the rotating shaft 32 to rotate via the transmission belt 343. The swing arm 33 swings with the rotation of the rotating shaft 32, thereby causing the screen plate 2 assembly to swing. This swing mechanism 3 is reasonably designed, has stable transmission, and can provide stable and appropriate swinging power, enabling the screen plate 2 assembly to achieve efficient swinging screening action and ensuring screening effect.

[0036] It is worth noting that a control panel can also be installed on the support base 1. The control panel is installed on the side of the main frame and connected to the drive motor 31 through wires. The control panel is equipped with a power switch, speed adjustment button and indicator lights, which are used to control the start and stop of the motor and adjust the speed of the motor. At the same time, the indicator lights show the operating status of the equipment.

[0037] The working process of this utility model multi-stage swing sorting sieve for tea: Preparation stage: Connect the external tea-carrying pipe to the threaded interface of the feeding port 41 on the top cover 4, then stack the sieves 2 of different mesh sizes on the base plate 9 in sequence, and fix the sieves 2 with the snap-fit ​​structure 5; then connect the collection tanks 8 of different specifications to the discharge port 211 of the sieves 2 through the telescopic pipe 7 to ensure a tight connection.

[0038] Screening stage: Tea leaves are fed into the feed port 41, the drive motor 31 is started, the drive motor 31 drives the rotating shaft 32 to rotate through the belt pulley transmission assembly, the swing arm 33 sleeved on the end of the rotating shaft 32 connected to the chassis 9 swings with the rotation of the rotating shaft 32, thereby driving the screen plate 2 assembly to swing.

[0039] Sorting stage: The tea leaves first fall onto the top screen 22. During the oscillation of the screen plate 2, smaller tea leaves will fall through the screen holes of the screen 22, while larger tea leaves will remain on the screen 22. The tea leaves remaining on the screen 22 are guided by the centrifugal force of the oscillating mechanism 3 and move towards the discharge port 211 along the spiral limiting track 6. Finally, they fall into the corresponding collection tank 8 through the discharge port 211 and the telescopic pipe 7. The tea leaves that have been screened by the upper screen 22 continue to repeat the above screening and moving process on the lower screen 22, thereby achieving multi-stage screening.

[0040] Cleaning stage: When the screen 22 needs to be cleaned, the conveying pipe connected to the feeding port 41 can be disconnected, and the cleaning pipe can be connected through the opening 212 on the frame 21. The screen 22 can be rinsed and cleaned using an external cleaning medium (such as water, cleaning liquid, etc.). After cleaning, tighten the sealing cap 213. If the screen 22 needs to be replaced, the lock 52 in the buckle structure 5 can be released, the clamp 51 can be separated, and the screen 22 can be disassembled for replacement.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-stage oscillating sorting sieve for tea leaves, comprising a support base, a sieve tray assembly for sorting tea leaves, and an oscillating mechanism for driving the sieve tray assembly to oscillate, characterized in that, The sieve assembly is detachably connected to the support base and is drivenly connected to the swing mechanism. The sieve assembly includes multiple stacked sieves and a top cover on top of the sieves. Each sieve consists of a frame and a screen. Adjacent frames are connected to each other by a snap-fit ​​structure, and each frame has a discharge port on one side. The screen is fixed to the bottom of the frame, and the mesh size of the screen increases from bottom to top. A limiting track is provided on the screen. The limiting track extends outward in a spiral shape around the center of the screen, and the end of the limiting track extends to one side of the discharge port and is fixedly connected thereto to form a limiting channel for guiding the tea leaves to move along the direction of the discharge port.

2. The multi-stage oscillating sorting sieve for tea leaves according to claim 1, characterized in that, One side of the frame is also provided with an opening for connecting an external cleaning pipe, and a sealing cap is threaded onto the opening.

3. The multi-stage oscillating sorting sieve for tea leaves according to claim 1, characterized in that, The discharge port protrudes from one side of the screen plate and is connected to a telescopic pipe, the end of which is connected to a collection tank.

4. The multi-stage oscillating sorting sieve for tea leaves according to claim 1, characterized in that, The top cover has a feeding port, and the inner wall of the feeding port is configured with a threaded interface for connecting to an external tea conveying pipe.

5. The multi-stage oscillating sorting sieve for tea leaves according to claim 1, characterized in that, The buckle structure includes a clamp and a lock. The clamp consists of two semi-circular clamp bodies, which are spliced ​​and locked together by the lock. The inner side of the clamp body has a slot that matches the edge of the frame. The slot is trapezoidal in shape.

6. The multi-stage oscillating sorting sieve for tea leaves according to claim 1, characterized in that, The support base has an inverted conical structure, and the top of the support base is provided with a base plate that matches the diameter of the screen. One end of the base plate is connected to the screen plate, and a swing fixing rod is connected between the outer side of the base plate and the support base. The swing fixing rod is distributed around the circumference of the base plate, and the two ends of the swing fixing rod are respectively fixed to the base plate and the support base by support feet.

7. The multi-stage oscillating sorting sieve for tea leaves according to claim 6, characterized in that, The swing mechanism includes a drive motor, a rotating shaft, and a swing arm. The drive motor is fixedly connected to the support base, and a belt pulley transmission assembly is connected between the output end of the drive motor and the rotating shaft. The rotating shaft and the axis of the chassis are located on the same axis, and one end of the rotating shaft is connected to the bottom end of the chassis, while the other end is connected to the belt pulley transmission assembly. The swing arm is sleeved on the end of the rotating shaft connected to the chassis, and one end of the swing arm abuts against the inner side of the chassis.

8. The multi-stage oscillating sorting sieve for tea leaves according to claim 7, characterized in that, The pulley drive assembly includes a driving pulley, a driven pulley, and a drive belt. The driving pulley is mounted on the output shaft of the drive motor, the driven pulley is mounted on a rotating shaft, and the drive belt is sleeved on the driving pulley and the driven pulley.

Images