Screening device for tea processing and processing method

Abstract

The invention discloses a screening device for tea leaf processing and a processing method, and belongs to the technical field of tea leaf processing.The screening device comprises a workbench, an outer shell, a feeding pipe, a filtering mechanism and a layering mechanism, and is characterized in that the outer shell is arranged on the workbench, the feeding pipe is arranged on the outer shell, and the filtering mechanism is arranged on the outer shell; the filtering mechanism is arranged in the feeding pipe, and the layering mechanism is arranged on the outer shell and the workbench, so that light impurities such as dust, leaf chips and other non-tea substances in tea leaves can be effectively separated, the layering mechanism conducts layering screening on the tea leaves, continuous work can be achieved, manual intervention is not needed, the production efficiency is improved, and the production cost is reduced. A large amount of tea leaves can be quickly treated, the treatment time is shortened, accurate grading can be performed according to the size, shape and density of the tea leaves, the quality stability of the tea leaves of different grades is ensured, tea leaf waste caused by manual operation errors is reduced, and the cross contamination risk in manual operation can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tea processing, and more specifically, to a screening device and a processing method for tea processing. Background Art

[0002] Tea is a drink that comes from the leaves and young buds of the tea plant. In the production of tea, tea screening is an important process, which involves removing impurities and debris from the tea leaves, as well as sorting the tea leaves according to their size and shape. During the tea screening process, it is difficult to completely remove non-tea impurities such as dust, branches, leaves, etc., which contain a large number of irregularly shaped impurities, so the tea leaves must be screened at multiple levels.

[0003] However, in the prior art, most of the traditional tea screening is done manually. When screening tea manually, workers need to repeatedly bend over and stretch their arms. Such physical labor for a long time can easily lead to physical fatigue and injury of workers, and is inefficient. Manual screening cannot meet the needs of large-scale production, and it is difficult to process a large amount of tea in a short period of time. The labor cost is too high, which makes it difficult to ensure the consistency of tea quality.

[0004] Therefore, it is necessary to provide a screening device and a processing method for tea processing to solve the above problems. Summary of the invention

[0005] The invention provides a screening device and a processing method for tea processing, which can improve the problem of low efficiency of manual screening existing in the related technology.

[0006] In the first aspect, an embodiment of the present application provides a screening device for tea processing, comprising a workbench, an outer shell, a feed pipe, a filtering mechanism and a stratification mechanism, characterized in that: the outer shell is arranged on the workbench, the feed pipe is arranged on the outer shell, the filtering mechanism is arranged in the feed pipe, the stratification mechanism is arranged on the outer shell and the workbench, and the filtering mechanism is used to remove impurities in the tea leaves, and the stratification mechanism is used to stratify and screen the tea leaves.

[0007] When using the screening device for tea processing, the staff first places the tea to be screened in the feed pipe, and then filters the tea through the filtering mechanism. The filtered tea goes through the feed pipe into the outer shell. The staff screens the tea in layers through the stratification mechanism, and finally the screened tea is automatically collected.

[0008] The above-mentioned technical scheme in the embodiment of the present application has at least the following technical effects: through the filtering mechanism, light impurities in the tea leaves, such as dust, leaf debris and other non-tea substances, can be effectively separated. Because the density of these impurities is different from that of the tea leaves, the filtering mechanism equipment is simple to operate and easy to maintain, does not require complex mechanical structures or chemical treatments, and has low costs. It helps to maintain the integrity and appearance of the tea leaves, significantly improves the purity of the tea leaves, reduces the content of non-tea substances, improves the quality of the tea leaves, realizes the automation of tea screening, and improves production efficiency and consistency. The stratification mechanism performs stratified screening on the tea leaves, which can work continuously without manual intervention, improves production efficiency, can quickly process a large amount of tea leaves, shortens processing time, and can accurately grade the tea leaves according to their size, shape and density, ensuring the stable quality of tea leaves of different grades, reducing tea waste due to manual operating errors, reducing the risk of cross contamination in manual operations, and improving health and safety.

[0009] In some embodiments, the filtering mechanism includes a first filter component and a second filter component, the first filter component includes a first support seat, a first drive motor, an eccentric disk, a first filter screen, a connecting block and a first slider, the first support seat is fixedly connected to the outer peripheral surface of the outer shell, the first drive motor is arranged on the first support seat, the eccentric disk is connected to the output shaft of the first drive motor, the first filter screen is arranged on the outer shell, one end of the connecting block is fixedly connected to the first filter screen, and the other end of the connecting block abuts against the eccentric disk, a first slide groove is opened on the outer shell, the first slider is fixedly connected to the connecting block, and the first slider is slidably connected to the first slide groove, and the second filter component is arranged on the feed pipe.

[0010] In some embodiments, the second filter assembly includes a first fan, a second fan, a second filter, a dust outlet pipe and a dust collection box, the first fan is arranged on the feed pipe, the second fan is arranged on the feed pipe, the feed pipe is provided with a first through hole and a second through hole, the second filter is arranged on the first through hole, the dust outlet pipe is arranged on the feed pipe, and the dust outlet pipe is located at the opening of the first through hole, the dust collection box is arranged on the outer shell and the feed pipe, and the dust collection box is located directly below the second through hole.

[0011] In some embodiments, the stratification mechanism includes a stratification component, a drive component, a first sliding component and a second sliding component, the drive component includes a second support seat, a second drive motor, a flexible coupling, a belt, an auger and an eccentric block, the second support seat is fixedly connected to the top surface of the workbench, the second drive motor is arranged on the second support seat, the flexible coupling is connected to the output shaft of the second drive motor, the belt is arranged on the flexible coupling, the auger is arranged at one end of the flexible coupling away from the second drive motor, and the other end of the auger is rotatably connected to the second sliding component, the stratification component is arranged on the auger, the first sliding component is arranged on the stratification component and the feed pipe, the second sliding component is arranged on the outer shell, and the eccentric block is fixedly connected to the auger.

[0012] In some embodiments, the layered assembly includes a first filter cylinder, a second filter cylinder, a first connecting plate, a second connecting plate and a feeding tube, one end of the feeding tube is rotatably connected to the auger, one end of the first connecting plate is fixedly connected to the auger, the other end of the first connecting plate is fixedly connected to the first filter cylinder, one end of the second connecting plate is fixedly connected to the outer circumferential surface of the first filter cylinder, the other end of the second connecting plate is fixedly connected to the second filter cylinder, one end of the first filter cylinder away from the first connecting plate is fixedly connected to the second filter cylinder, and one end of the first filter cylinder away from the first connecting plate is rotatably connected to the feeding tube.

[0013] In some embodiments, the first sliding assembly includes a first limiting ring and a second limiting ring, a second sliding groove is provided on the end of the feed tube away from the first drive motor, the first limiting ring is snap-connected with the second limiting ring, and the second limiting ring is slidably connected on the second sliding groove.

[0014] In some embodiments, the second sliding assembly includes a fixed frame, a first spring, a second slider and a limit plate, the fixed frame is fixedly connected to the outer shell, the fixed frame is provided with a third slide groove, the limit plate is slidably connected to the third slide groove, the limit plate is fixedly connected to the second slider, one end of the first spring is fixedly connected to the fixed frame, the other end of the first spring is fixedly connected to the second slider, and the auger is rotatably connected to the second slider.

[0015] In some embodiments, the outer shell is provided with a first discharge port, a second discharge port and a third discharge port, and the outer shell is also provided with a first discharge plate, a second discharge plate and a third discharge plate, and the first discharge plate is located on the first discharge port, the second discharge plate is located on the second discharge port, and the third discharge plate is located on the third discharge port.

[0016] In some embodiments, a fourth slide groove is provided on one end of the outer shell close to the second drive motor, and the auger is slidably connected to the fourth slide groove.

[0017] In a second aspect, the present invention provides a method for using a screening device for tea processing, the method comprising the following steps: S1: Untreated tea leaves are poured into the feeding tube; S2: Start the first driving motor, the first driving motor drives the eccentric disk to rotate, as the eccentric disk rotates, the eccentric disk abuts against the connecting block, the eccentric disk drives the connecting block to move up and down, drives the first slider to slide on the first slide groove, and then drives the first filter to vibrate, starts the first fan and the second fan, and screens the tea leaves by airflow; S3: Start the second drive motor, the second drive motor drives the flexible coupling to rotate, the flexible coupling drives the auger to rotate, the eccentric block rotates with the rotation of the auger, the eccentric block drives the auger to vibrate, and with the rotation of the auger, the first filter cylinder and the second filter cylinder are driven to rotate; S4: The auger vibrates, driving the second slider to slide up and down on the fixed frame. As the second slider slides up and down, the fixed frames at both ends of the second slider are compressed, and the feeding pipe vibrates as the auger vibrates. The second limiting ring and the first limiting ring are locked with each other, and the second limiting ring slides on the second slide groove, and the auger slides up and down in the fourth slide groove; S5: With the rotation and vibration of the auger, the tea leaves gradually move from the first filter cylinder toward the first connecting plate, fall from the end of the first filter cylinder close to the first connecting plate, fall onto the first discharge plate, and then fall out from the first discharge port; the tea leaves gradually move from the second filter cylinder toward the first connecting plate, fall from the end of the second filter cylinder close to the first connecting plate, fall onto the second discharge plate; the tea leaves that fall inside the outer shell fall from the third discharge port, and fall from the third discharge plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a screening device and a processing method for tea processing according to the present invention; Figure 2A cross-sectional view of a feed pipe of a screening device and a processing method for tea processing according to the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 A side view of a screening device and a processing method for tea processing according to the present invention; Figure 6 A cross-sectional view of an outer shell of a screening device and a processing method for tea processing according to the present invention; Figure 7 for Figure 6 Enlarged view of point C in the middle; Figure 8 for Figure 6 Enlarged view of point D in the middle; Fig. 9 A sectional view of a stratified mechanism of a screening device and a processing method for tea processing according to the present invention; Fig.10 A schematic diagram of a stratification mechanism of a screening device and a processing method for tea processing according to the present invention; Fig.11 A cross-sectional view of an outer shell of a screening device and a processing method for tea processing according to the present invention; Fig.12 The present invention is a bottom view of the outer shell of a screening device and a processing method for tea processing.

[0019] Description of the numbers in the figure: 1. Workbench; 2. Outer shell; 3. Feed pipe; 4. Filter mechanism; 401. First filter assembly; 4011. First support seat; 4012. First drive motor; 4013. Eccentric disk; 4014. First filter screen; 4015. Connecting block; 4016. First slider; 402. Second filter assembly; 4021. First fan; 4022. Second fan; 4023. Second filter screen; 4024. Dust outlet pipe; 4025. Dust collection box; 5. First chute; 6. First through hole; 7. Second through hole; 8. Layering mechanism; 801. Layering assembly; 8011. First filter cylinder; 8012. Second filter cylinder; 8013. First connecting plate; 8014. Second connecting plate Plate; 8015, material placement tube; 802, drive assembly; 8021, second support seat; 8022, second drive motor; 8023, flexible coupling; 8024, belt; 8025, auger; 8026, eccentric block; 803, first sliding assembly; 8031, first limiting ring; 8032, second limiting ring; 804, second sliding assembly; 8041, fixed frame; 8042, first spring; 8043, second slider; 8044, limiting plate; 9, second slide; 10, third slide; 11, first discharge port; 12, second discharge port; 13, third discharge port; 14, first discharge plate; 15, second discharge plate; 16, third discharge plate; 17, fourth slide. DETAILED DESCRIPTION

[0020] In the prior art, tea leaves are traditionally screened manually. When screening tea leaves manually, workers need to bend over and stretch their arms repeatedly. Such physical labor for a long time can easily lead to physical fatigue and injury of workers, and is inefficient. Manual screening cannot meet the needs of large-scale production, and it is difficult to process a large amount of tea leaves in a short period of time. The labor cost is too high, which makes it difficult to ensure the consistency of tea quality.

[0021] Based on this, the problem of low efficiency of manual screening in related technologies can be improved.

[0022] Example 1: Please refer to Figures 1 to 12 , comprising a workbench 1, an outer shell 2, a feed pipe 3, a filter mechanism 4 and a stratification mechanism 8, characterized in that: the outer shell 2 is arranged on the workbench 1, the feed pipe 3 is arranged on the outer shell 2, the filter mechanism 4 is arranged in the feed pipe 3, the stratification mechanism 8 is arranged on the outer shell 2 and the workbench 1, and the filter mechanism 4 is used to remove impurities in tea leaves, and the stratification mechanism 8 is used to stratify and screen the tea leaves.

[0023] See also Figures 2 to 4The filtering mechanism 4 includes a first filtering component 401 and a second filtering component 402, wherein the first filtering component 401 includes a first supporting seat 4011, a first driving motor 4012, an eccentric disk 4013, a first filter screen 4014, a connecting block 4015 and a first sliding block 4016, wherein the first supporting seat 4011 is fixedly connected to the outer peripheral surface of the outer shell 2, the first driving motor 4012 is arranged on the first supporting seat 4011, the eccentric disk 4013 is connected to the output shaft of the first driving motor 4012, the first filter screen 4014 is arranged on the outer shell 2, one end of the connecting block 4015 is fixedly connected to the first filter screen 4014, the other end of the connecting block 4015 is in contact with the eccentric disk 4013, the outer shell 2 is provided with a first sliding groove 5, and the first sliding block 4016 is fixedly connected to the outer shell 2. The connecting block 4015 is arranged on the connecting block 4015, and the first slider 4016 is slidably connected to the first slide groove 5, the second filter assembly 402 is arranged on the feed pipe 3, the second filter assembly 402 includes a first fan 4021, a second fan 4022, a second filter screen 4023, a dust outlet pipe 4024 and a dust collecting box 4025, the first fan 4021 is arranged on the feed pipe 3, the second fan 4022 is arranged on the feed pipe 3, the feed pipe 3 is provided with a first through hole 6 and a second through hole 7, the second filter screen 4023 is arranged on the first through hole 6, the dust outlet pipe 4024 is arranged on the feed pipe 3, and the dust outlet pipe 4024 is located at the opening of the first through hole 6, the dust collecting box 4025 is arranged on the outer shell 2 and the feed pipe 3, and the dust collecting box 4025 is located directly below the second through hole 7.

[0024] With such arrangement, when the user uses the screening device for processing tea leaves, the user first pours the tea leaves into the tea leaves from the opening of the feed pipe 3, and then the user starts the first drive motor 4012, and the first drive motor 4012 drives the eccentric disk 4013 to rotate. As the eccentric disk 4013 rotates, the eccentric disk 4013 abuts against the connecting block 4015, driving the connecting block 4015 to slide up and down. Because the other end of the connecting block 4015 is fixedly connected to the first filter screen 4014, as the connecting block 4015 slides up and down, the first filter screen 4014 is driven to vibrate up and down, and the poured tea leaves are screened, some larger impurities are separated from the tea leaves, and the tea leaves are screened, thereby improving the overall purity of the tea leaves. Purity and quality, the tea leaves screened by the first filter 4014 fall into the feed pipe 3, and the user starts the first through hole 6 again to screen the fallen tea leaves for the second time. The first through hole 6 performs wind screening on the fallen tea leaves, and the first through hole 6 uses wind to separate impurities in tea boxes of different densities. Impurities lighter than tea leaves will be blown away by the wind, and the impurities fall from the second filter 4023 into the dust outlet pipe 4024, and fall from the dust outlet pipe 4024. The tea leaves fall again, and the user starts the second fan 4022. The wind force of the second fan 4022 is greater than that of the first fan 4021. The second fan 4022 performs wind screening on the fallen tea leaves, and uses airflows of different speeds to separate the tea leaves and impurities by using the density difference. will be blown away by the wind, while heavier impurities such as stones, metal blocks, etc. will fall from the second through hole 7 due to the force of gravity and fall into the dust collecting box 4025 to collect the impurities. The remaining tea leaves will fall from the feed pipe 3 into the outer shell 2 for final stratification screening, which can effectively separate light impurities in the tea leaves, such as dust, leaf debris and other non-tea substances. Because the density of these impurities is different from that of the tea leaves, the filtering mechanism is simple to operate and easy to maintain, does not require complex mechanical structures or chemical treatments, and has low costs, helps to maintain the integrity and appearance of the tea leaves, significantly improves the purity of the tea leaves, reduces the content of non-tea substances, improves the quality of the tea leaves, realizes the automation of tea leaf screening, and improves production efficiency and consistency. Because tea leaves will generate a lot of heat during the process of withering, rolling, etc., the first fan 4021 and the second fan 4022 can dissipate heat for the tea leaves as they fall, which can quickly reduce the temperature of the tea leaves and prevent quality degradation caused by overheating. High temperatures can easily promote the oxidation of tea leaves, and wind heat dissipation can reduce the contact between tea leaves and air, slow down the oxidation process, maintain the aroma and taste of the tea leaves, and accelerate the evaporation of water to dry the tea leaves for subsequent storage and preservation. It can help control the enzyme activity in the tea leaves and avoid excessive oxidation, thereby improving the quality of the tea leaves and facilitating subsequent processing. In addition, when tea leaves are exposed to high temperatures, harmful substances in the tea leaves may increase, and wind heat dissipation can help reduce these risks.

[0025] See also Figures 5 to 10The stratification mechanism 8 includes a stratification component 801, a driving component 802, a first sliding component 803 and a second sliding component 804. The driving component 802 includes a second support seat 8021, a second driving motor 8022, a flexible coupling 8023, a belt 8024, a screw dragon 8025 and an eccentric block 8026. The second support seat 8021 is fixedly connected to the top surface of the workbench 1. The second driving motor 8022 is arranged on the second support seat 8021. The flexible coupling 8023 is connected to the output shaft of the second driving motor 8022. The belt 8024 is arranged on the flexible coupling 8023. The flexible coupling 8023 is away from the second driving motor 8022. The auger 8025 is provided at one end, and the other end of the auger 8025 is rotatably connected to the second sliding component 804, the layered component 801 is provided on the auger 8025, the first sliding component 803 is provided on the layered component 801 and the feed pipe 3, the second sliding component 804 is provided on the outer shell 2, the eccentric block 8026 is fixedly connected to the auger 8025, the layered component 801 includes a first filter cylinder 8011, a second filter cylinder 8012, a first connecting plate 8013, a second connecting plate 8014 and a feeding pipe 8015, one end of the feeding pipe 8015 is rotatably connected to the auger 8025, and one end of the first connecting plate 8013 is fixedly connected to the feed pipe 8015. The first connecting plate 8013 is connected to the auger 8025, the other end of the first connecting plate 8013 is fixedly connected to the first filter cylinder 8011, one end of the second connecting plate 8014 is fixedly connected to the outer circumferential surface of the first filter cylinder 8011, the other end of the second connecting plate 8014 is fixedly connected to the second filter cylinder 8012, the end of the first filter cylinder 8011 away from the first connecting plate 8013 is fixedly connected to the second filter cylinder 8012, and the end of the first filter cylinder 8011 away from the first connecting plate 8013 is rotatably connected to the feeding pipe 8015, the first sliding assembly 803 includes a first limiting ring 8031 ​​and a second limiting ring 8032, and the feeding pipe 3 A second slide groove 9 is provided on the end away from the first driving motor 4012, the first limiting ring 8031 ​​is snap-connected with the second limiting ring 8032, and the second limiting ring 8032 is slidably connected on the second slide groove 9, the second sliding assembly 804 includes a fixing frame 8041, a first spring 8042, a second slider 8043 and a limiting plate 8044, the fixing frame 8041 is fixedly connected to the outer shell 2, a third slide groove 10 is provided on the fixing frame 8041, the limiting plate 8044 is slidably connected to the third slide groove 10, the limiting plate 8044 is fixedly connected with the second slider 8043, one end of the first spring 8042 is fixedly connected to the fixing frame 8041,The other end of the first spring 8042 is fixedly connected to the second slider 8043, and the auger 8025 is rotatably connected to the second slider 8043. A fourth slide groove 17 is provided on one end of the outer shell 2 close to the second drive motor 8022, and the auger 8025 is slidably connected to the fourth slide groove 17.

[0026] With such arrangement, after the impurities in the tea leaves are screened, the tea leaves fall from the feed pipe 3 into the placement pipe 8015, and the user starts the second drive motor 8022 again. The second drive motor 8022 drives the flexible coupling 8023 to rotate. When the main shaft on the flexible coupling 8023 rotates, the pass belt 8024 rotates. The belt 8024 drives the driven shaft to rotate through friction, and the driven shaft drives the auger 8025 to rotate. The flexible coupling 8023 allows axial displacement between the auger 8025 and the second drive motor 8022. This is because the belt 8024 has a certain elasticity in a tensioned state and can absorb the axial displacement, and the belt 8024 has a certain elasticity and can absorb the vibration to a certain extent. The impact caused by the auger 8025 can protect the connected shaft and machine, and at the same time keep the power transmission stable. With the rotation of the auger 8025, the tea leaves dropped in the feeding tube 8015 are brought into the first filtering cylinder 8011 by the rotation of the auger 8025. With the rotation of the auger 8025, the eccentric block 8026 fixedly connected to the auger 8025 rotates with the rotation of the auger 8025. The eccentric block 8026 generates centrifugal force, which makes the auger 8025 vibrate, and can make the auger 8025 jump up and down under the action of the centrifugal force. One end of the auger 8025 is rotatably connected to the second slider 8043. With the vibration of the auger 8025, the second slider 8043 slides up and down in the third slide groove 10 through the limit plate 8044. The springs arranged at both ends of 043 are compressed as the second slider 8043 slides, and the fixing frame 8041 provides the necessary supporting force, which can absorb and reduce the vibration of the mechanical equipment, protect the equipment itself and the surrounding environment from the vibration, improve the stability and service life of the equipment, and limit the vibration of the auger 8025 to prevent the equipment from malfunctioning. The auger 8025 slides up and down in the fourth slide groove 17. As the auger 8025 vibrates, and because one end of the feeding tube 8015 is rotatably connected to the auger 8025, and the other end of the feeding tube 8015 is rotatably connected to the first filter cylinder 8011 and the second filter cylinder 8012, the feeding tube 8015 is rotatably connected to the first filter cylinder 8011 and the second filter cylinder 8012 as the auger 8025 vibrates. The first limiting ring 8031 ​​slides in the second slide groove 9 to prevent the placement tube 8015 from being separated from the feed tube 3, resulting in the inability of all tea leaves to enter the placement tube 8015, affecting work efficiency. In addition, as the auger 8025 vibrates, the auger 8025 drives the first filter cylinder 8011 and the second filter cylinder 8012 to rotate and vibrate, and the filter hole diameters of the first filter cylinder 8011 and the second filter cylinder 8012 are different. As the first filter cylinder 8011 vibrates and rotates, part of the tea leaves in the first filter cylinder 8011 are screened out from the first filter cylinder 8011 and fall into the second filter cylinder 8012. As the second filter cylinder 8012 vibrates and rotates,Part of the tea leaves in the second filter cylinder 8012 are screened out and fall into the outer shell 2. With the vibration and rotation of the first filter cylinder 8011 and the second filter cylinder 8012, the tea leaves will be continuously screened out and moved forward, so that the tea leaves can be screened in layers. This can work continuously without manual intervention, improve production efficiency, quickly process a large amount of tea leaves, shorten processing time, and accurately grade tea leaves according to their size, shape and density, ensuring the stability of the quality of tea leaves of different grades, reducing the waste of tea leaves due to manual operation errors, reducing the risk of cross contamination in manual operation, and improving hygiene and safety.

[0027] See also Fig.11 and Fig.12 The outer shell 2 is provided with a first discharge port 11, a second discharge port 12 and a third discharge port 13, and the outer shell 2 is also provided with a first discharge plate 14, a second discharge plate 15 and a third discharge plate 16, and the first discharge plate 14 is located on the first discharge port 11, the second discharge plate 15 is located on the second discharge port 12, and the third discharge plate 16 is located on the third discharge port 13.

[0028] In this way, after the tea leaves are screened by the stratification mechanism 8, the tea leaves in the first filtering cylinder 8011 fall from the opening at one end close to the second slider 8043, and fall onto the first discharging plate 14, and fall from the first discharging port 11 through the first discharging plate 14 for collection; the tea leaves in the second filtering cylinder 8012 fall from the opening at one end close to the second slider 8043, and fall onto the second discharging plate 15, and fall from the second discharging port 12 through the second discharging plate 15 for collection; the tea leaves in the outer shell 2 fall from the third discharging port 13, and are collected through the third discharging plate 16. In this way, tea leaves of different grades can be automatically collected into corresponding containers or packages without manual collection, which significantly improves efficiency and reduces labor costs, avoids manual contact with tea leaves, reduces the risk of cross contamination, maintains the purity of tea leaves, and can accurately collect tea leaves of different grades into corresponding containers according to the screening results, ensure the consistency of each batch of tea leaves, and facilitate subsequent storage and transportation.

[0029] In the present embodiment 1, the implementation principle of a screening device for tea processing is as follows: unprocessed tea leaves are poured into the feed pipe 3, and the first drive motor 4012 is started. The first drive motor 4012 drives the eccentric disk 4013 to rotate. As the eccentric disk 4013 rotates, the eccentric disk 4013 abuts against the connecting block 4015. The eccentric disk 4013 drives the connecting block 4015 to move up and down, drives the first slider 4016 to slide on the first slide groove 5, and then drives the first filter 4014 to vibrate, and starts the first fan. The fans 4021 and 40222 are used to filter the tea leaves by airflow. The second driving motor 8022 is started. The second driving motor 8022 drives the flexible coupling 8023 to rotate. The flexible coupling 8023 drives the auger 8025 to rotate. The eccentric block 8026 rotates with the rotation of the auger 8025. The eccentric block 8026 drives the auger 8025 to vibrate. With the rotation of the auger 8025, the first filter cylinder 8011 and the second filter cylinder 8012 are driven to rotate, and the auger 8025 vibrates. The second slider 8043 is driven to slide up and down on the fixing frame 8041. As the second slider 8043 slides up and down, the fixing frames 8041 at both ends of the second slider 8043 are compressed, and the feeding tube 8015 vibrates with the vibration of the auger 8025. The second limiting ring 8032 and the first limiting ring 8031 ​​are mutually locked, and the second limiting ring 8032 slides on the second slide groove 9. The auger 8025 slides up and down on the fourth slide groove 17. As the auger 8025 rotates and vibrates, the tea leaves gradually move from the first filter cylinder 8011 to the filter cylinder 8011. The tea leaves move toward the first connecting plate 8013, fall from the end of the first filter cylinder 8011 close to the first connecting plate 8013, fall onto the first discharge plate 14, and then fall out from the first discharge port 11. The tea leaves gradually move from the second filter cylinder 8012 toward the first connecting plate 8013, fall from the end of the second filter cylinder 8012 close to the first connecting plate 8013, fall onto the second discharge plate 15, and the tea leaves that fall into the outer shell 2 fall from the third discharge port 13 and fall from the third discharge plate 16.

[0030] Embodiment 2: The embodiment of the present application also provides a method for using a screening device for tea processing, and the method for using a screening device for tea processing comprises the following steps: S1: Untreated tea leaves are poured into the feeding pipe 3; S2: Start the first driving motor 4012, the first driving motor 4012 drives the eccentric disk 4013 to rotate, as the eccentric disk 4013 rotates, the eccentric disk 4013 abuts against the connecting block 4015, the eccentric disk 4013 drives the connecting block 4015 to move up and down, drives the first slider 4016 to slide on the first slide groove 5, and then drives the first filter 4014 to vibrate, and starts the first fan 4021 and the second fan 4022 to filter the tea leaves; S3: Start the second drive motor 8022, the second drive motor 8022 drives the flexible coupling 8023 to rotate, the flexible coupling 8023 drives the auger 8025 to rotate, the eccentric block 8026 rotates with the rotation of the auger 8025, the eccentric block 8026 drives the auger 8025 to vibrate, and with the rotation of the auger 8025, the first filter cylinder 8011 and the second filter cylinder 8012 are driven to rotate; S4: the auger 8025 vibrates, driving the second slider 8043 to slide up and down on the fixing frame 8041. As the second slider 8043 slides up and down, the fixing frames 8041 at both ends of the second slider 8043 are compressed, and the feeding tube 8015 vibrates as the auger 8025 vibrates. The second limiting ring 8032 and the first limiting ring 8031 ​​are locked with each other, and the second limiting ring 8032 slides on the second slide groove 9, and the auger 8025 slides up and down in the fourth slide groove 17; S5: With the rotation and vibration of the auger 8025, the tea leaves gradually move from the first filter cylinder 8011 toward the first connecting plate 8013, fall from the end of the first filter cylinder 8011 close to the first connecting plate 8013, fall onto the first discharge plate 14, and then fall out from the first discharge port 11; the tea leaves gradually move from the second filter cylinder 8012 toward the first connecting plate 8013, fall from the end of the second filter cylinder 8012 close to the first connecting plate 8013, fall onto the second discharge plate 15; the tea leaves that fall into the outer shell 2 fall from the third discharge port 13, and fall from the third discharge plate 16.

[0031] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening device for tea processing, comprising a workbench (1), an outer shell (2), a feed pipe (3), a filtering mechanism (4) and a stratification mechanism (8), characterized in that: The outer shell (2) is arranged on the workbench (1), the feed pipe (3) is arranged on the outer shell (2), the filter mechanism (4) is arranged in the feed pipe (3), the stratification mechanism (8) is arranged on the outer shell (2) and the workbench (1), and the filter mechanism (4) is used to remove impurities in the tea leaves, and the stratification mechanism (8) is used to stratify and screen the tea leaves.

2. A screening device for tea processing according to claim 1, characterized in that: The filtering mechanism (4) comprises a first filtering assembly (401) and a second filtering assembly (402); the first filtering assembly (401) comprises a first supporting seat (4011), a first driving motor (4012), an eccentric disk (4013), a first filtering screen (4014), a connecting block (4015) and a first sliding block (4016); the first supporting seat (4011) is fixedly connected to the outer peripheral surface of the outer shell (2); the first driving motor (4012) is arranged on the first supporting seat (4011); and the output shaft of the first driving motor (4012) is connected to a The eccentric disk (4013), the first filter screen (4014) is arranged on the outer shell (2), one end of the connecting block (4015) is fixedly connected to the first filter screen (4014), the other end of the connecting block (4015) is in contact with the eccentric disk (4013), a first slide groove (5) is provided on the outer shell (2), the first slider (4016) is fixedly connected to the connecting block (4015), and the first slider (4016) is slidably connected to the first slide groove (5), and the second filter assembly (402) is arranged on the feed pipe (3).

3. A screening device for tea processing according to claim 2, characterized in that: The second filter assembly (402) comprises a first fan (4021), a second fan (4022), a second filter (4023), a dust outlet pipe (4024) and a dust collecting box (4025); the first fan (4021) is arranged on the feed pipe (3); the second fan (4022) is arranged on the feed pipe (3); a first through hole (6) and a second through hole (7) are provided on the feed pipe (3); the second filter (4023) is arranged on the first through hole (6); the dust outlet pipe (4024) is arranged on the feed pipe (3), and the dust outlet pipe (4024) is located at the opening of the first through hole (6); the dust collecting box (4025) is arranged on the outer shell (2) and the feed pipe (3), and the dust collecting box (4025) is located directly below the second through hole (7).

4. A screening device for tea processing according to claim 3, characterized in that: The stratification mechanism (8) comprises a stratification component (801), a drive component (802), a first sliding component (803) and a second sliding component (804); the drive component (802) comprises a second support seat (8021), a second drive motor (8022), a flexible coupling (8023), a belt (8024), an auger (8025) and an eccentric block (8026); the second support seat (8021) is fixedly connected to the top surface of the workbench (1); the second drive motor (8022) is arranged on the second support seat (8021); the flexible coupling (8023) is connected to the output shaft of the second drive motor (8022). 3), the belt (8024) is arranged on the flexible coupling (8023), the auger (8025) is arranged at one end of the flexible coupling (8023) away from the second drive motor (8022), and the other end of the auger (8025) is rotatably connected to the second sliding component (804), the layered component (801) is arranged on the auger (8025), the first sliding component (803) is arranged on the layered component (801) and the feed pipe (3), the second sliding component (804) is arranged on the outer shell (2), and the eccentric block (8026) is fixedly connected to the auger (8025).

5. A screening device for tea processing according to claim 4, characterized in that: The layered assembly (801) comprises a first filter cylinder (8011), a second filter cylinder (8012), a first connecting plate (8013), a second connecting plate (8014) and a material placing tube (8015), one end of the material placing tube (8015) being rotatably connected to the auger (8025), one end of the first connecting plate (8013) being fixedly connected to the auger (8025), the other end of the first connecting plate (8013) being fixedly connected to the first filter cylinder (8011), and the second connecting plate (8014) being fixedly connected to the first filter cylinder (8011). One end of the connecting plate (8014) is fixedly connected to the outer peripheral surface of the first filter cylinder (8011), the other end of the second connecting plate (8014) is fixedly connected to the second filter cylinder (8012), one end of the first filter cylinder (8011) away from the first connecting plate (8013) is fixedly connected to the second filter cylinder (8012), and one end of the first filter cylinder (8011) away from the first connecting plate (8013) is rotatably connected to the material placement tube (8015).

6. A screening device for tea processing according to claim 5, characterized in that: The first sliding assembly (803) comprises a first limiting ring (8031) and a second limiting ring (8032); a second slide groove (9) is provided on the end of the feed pipe (3) away from the first drive motor (4012); the first limiting ring (8031) and the second limiting ring (8032) are snap-connected, and the second limiting ring (8032) is slidably connected on the second slide groove (9).

7. A screening device for tea processing according to claim 6, characterized in that: The second sliding assembly (804) comprises a fixing frame (8041), a first spring (8042), a second sliding block (8043) and a limiting plate (8044); the fixing frame (8041) is fixedly connected to the outer shell (2); a third sliding groove (10) is provided on the fixing frame (8041); the limiting plate (8044) is slidably connected to the third sliding groove (10); the second sliding block (8043) is fixedly connected to the limiting plate (8044); one end of the first spring (8042) is fixedly connected to the fixing frame (8041); the other end of the first spring (8042) is fixedly connected to the second sliding block (8043); and the auger (8025) is rotatably connected to the second sliding block (8043).

8. A screening device for tea processing according to claim 7, characterized in that: The outer shell (2) is provided with a first discharge port (11), a second discharge port (12) and a third discharge port (13); the outer shell (2) is also provided with a first discharge plate (14), a second discharge plate (15) and a third discharge plate (16); the first discharge plate (14) is located on the first discharge port (11), the second discharge plate (15) is located on the second discharge port (12), and the third discharge plate (16) is located on the third discharge port (13).

9. A screening device for tea processing according to claim 8, characterized in that: A fourth slide groove (17) is provided on one end of the outer shell (2) close to the second drive motor (8022), and the auger (8025) is slidably connected to the fourth slide groove (17).

10. A method for using a screening device for tea processing according to any one of claims 1 to 9, characterized in that: The steps include: S1: Untreated tea leaves are poured into the feeding pipe (3); S2: starting the first drive motor (4012), the first drive motor (4012) drives the eccentric disk (4013) to rotate, and as the eccentric disk (4013) rotates, the eccentric disk (4013) abuts against the connecting block (4015), and the eccentric disk (4013) drives the connecting block (4015) to move up and down, driving the first slider (4016) to slide on the first slide groove (5), thereby driving the first filter (4014) to vibrate, and starting the first fan (4021) and the second fan (4022) to filter the tea leaves by air flow; S3: starting the second drive motor (8022), the second drive motor (8022) drives the flexible coupling (8023) to rotate, the flexible coupling (8023) drives the auger (8025) to rotate, the eccentric block (8026) rotates along with the rotation of the auger (8025), the eccentric block (8026) drives the auger (8025) to vibrate, and along with the rotation of the auger (8025), the first filter cylinder (8011) and the second filter cylinder (8012) are driven to rotate; S4: the auger (8025) vibrates, driving the second slider (8043) to slide up and down on the fixed frame (8041). As the second slider (8043) slides up and down, the fixed frames (8041) at both ends of the second slider (8043) are compressed, and the material placement tube (8015) vibrates as the auger (8025) vibrates. The second limiting ring (8032) and the first limiting ring (8031) are locked with each other. The second limiting ring (8032) slides on the second slide groove (9), and the auger (8025) slides up and down in the fourth slide groove (17); S5: With the rotation and vibration of the auger (8025), the tea leaves gradually move from the first filter cylinder (8011) toward the first connecting plate (8013), fall from the end of the first filter cylinder (8011) close to the first connecting plate (8013), fall onto the first discharge plate (14), and then fall out from the first discharge port (11). The tea leaves gradually move from the second filter cylinder (8012) toward the first connecting plate (8013), fall from the end of the second filter cylinder (8012) close to the first connecting plate (8013), fall onto the second discharge plate (15), and the tea leaves that fall into the outer shell (2) fall from the third discharge port (13), and fall from the third discharge plate (16).

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