Machine-harvested old leaf green tea processing device

Abstract

The utility model discloses a machine-harvested old-leaf green tea processing device which comprises a fixation mechanism, the fixation mechanism adopts hot air to directly contact with tea leaves for heating and fixation, and generated moisture is outwards pushed and discharged by the hot air; one end of the rolling machine is connected with the fixation mechanism, and the rolling machine adopts hot rolling; one end of the drying machine is connected with the other end of the rolling machine; the crushing device is connected with the other end of the drying machine, and the crushing device can be used for producing tea stems, broken tea and powder tea. The machine has the characteristics that the machine-picked old leaf tea can be subjected to fixation, hot rolling, dynamic drying and crushing in sequence, and tea stems, broken tea, powder tea and the like can be prepared at the same time.

Description

Technical Field

[0001] This utility model relates to a processing equipment for old tea leaves, specifically a processing device for machine-harvested old tea leaves. Background Technology

[0002] Summer and autumn tea refers to tea leaves harvested during the summer and autumn seasons, typically including summer and autumn teas. The harvesting time for summer and autumn teas is usually between early June and the end of October, with the specific timing varying by region. Summer tea, generally from June to the end of July, is the period of rapid bud differentiation and leaf growth, but the accumulation of internal substances is insufficient, resulting in relatively lower tea quality. Autumn tea, from August to the end of October, is a period of decreasing temperatures and large diurnal temperature variations, allowing for richer accumulation of internal substances in the tea leaves, resulting in a more pronounced aroma and a mellow taste. Summer-harvested tea leaves are usually large and have high brewing endurance, but their aroma is slightly bitter and astringent. Autumn-harvested tea leaves, on the other hand, are rich in aromatic substances, have a more pronounced aroma, a mellow taste, and lower bitterness and astringency.

[0003] The processing methods for summer and autumn tea mainly include picking, spreading, fixing, rolling, and drying. However, in practice, the inventors have discovered that rolling tea leaves is usually done at room temperature, resulting in a low yield of rolled tea leaves and reduced tea quality. Furthermore, during the drying process after rolling, tea fragments and powder are not promptly sieved and filtered, and are dried along with the tea leaves. The powder accumulates in the drying drum, and due to the high temperature, it burns, producing a smoky flavor. The tea leaves absorb this smoky flavor, further affecting quality. Therefore, to address the shortcomings of the existing technology, a machine-harvested old-leaf green tea processing device has been developed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a machine-harvested old leaf green tea processing device.

[0005] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0006] A processing device for machine-harvested old-leaf green tea includes a fixation mechanism that uses hot air to directly contact and heat the tea leaves, with the generated moisture being pushed outwards by the hot air; a rolling machine, one end of which is connected to the fixation mechanism, and the rolling machine uses hot rolling; a drying machine, one end of which is connected to the other end of the rolling machine; and a pulverizing device, which is connected to the other end of the drying machine, and the pulverizing device can produce tea stems, broken tea, and powdered tea.

[0007] Furthermore, the kneading machine includes a kneading worktable with multiple kneading discs; a tea guide barrel, each kneading disc communicating with one of the tea guide barrels, the tea guide barrels being equipped with a tea pusher for pushing tea leaves onto the kneading discs, and each tea guide barrel also being equipped with a hot air mechanism; a kneading movable plate, the kneading movable plate being connected to the kneading worktable via at least three swinging mechanisms, and a kneading pressure mechanism being installed on the kneading movable plate corresponding to one of the kneading discs, wherein at least two swinging mechanisms are respectively connected to a kneading drive motor, and the at least two swinging mechanisms drive the kneading movable plate to swing, the kneading pressure mechanism cooperating with the kneading discs to knead the tea leaves; a discharge and de-clumping mechanism, each kneading disc having a discharge port, the discharge port being equipped with a discharge and de-clumping mechanism; and a kneading tea leaf conveyor, the kneading tea leaf conveyor being installed at the bottom of the kneading worktable for collecting and conveying the tea leaves discharged by the discharge and de-clumping mechanism.

[0008] Furthermore, the unloading and deblocking mechanism includes a uniform leaf deblocking cylinder, which is vertically installed at the bottom of the unloading port; a uniform leaf deblocking shaft, which is placed inside the uniform leaf deblocking cylinder and rotatably connected to the uniform leaf deblocking cylinder at both ends, and has multiple deblocking rods spaced apart on its axial circumferential side; a deblocking drive motor, which is installed in the uniform leaf deblocking cylinder and is drively connected to the uniform leaf deblocking shaft; and a sealing mechanism, which is movably positioned between the unloading port and the uniform leaf deblocking cylinder, allowing the unloading port to open and close.

[0009] Furthermore, the sealing mechanism includes a first limiting seat, on which a first limiting sensor is installed; a second limiting seat, on which a second limiting sensor is provided and spaced apart from the first limiting seat; a first sealing plate, on which a touch rod is provided at one end and a first swing rod is provided at the other end; and a sealing plate drive motor, which is connected to the swing rod in a transmission manner; wherein, the sealing plate drive motor drives the swing rod to swing, and the first sealing plate drives the touch rod to swing between the first limiting seat and the second limiting seat.

[0010] Furthermore, the tea-tea stirring mechanism includes a tea-tea stirring plate, one end of which is rotatably connected to the kneading worktable via a fourth support shaft; and a third swing arm, one end of which is connected to the kneading movable plate, and the other end of which is rotatably connected to the tea-tea stirring plate via a third support shaft.

[0011] Furthermore, the dryer includes a drying cylinder rotatably mounted on a first support frame, with multiple screen cylinders spaced along its length, and multiple de-blocking guide strips distributed at intervals on the inner side of the drying cylinder, extending in a spiral pattern; a baffle plate suspended from one end of the drying cylinder and connected to a hot air pipe, with a feed inlet connected to a feeding mechanism; a guide cylinder, one end of which is connected to the other end of the drying cylinder; an exhaust cap suspended from the other end of the guide cylinder, with an exhaust port at the top and a discharge port at the bottom; a discharge mechanism connected to the discharge port; a collection basket movably mounted at the bottom of each screen cylinder; a drying shell covering the drying cylinder and mounted on the top of the first support frame; and a transmission mechanism drivingly connected to the drying cylinder.

[0012] Furthermore, the unloading mechanism includes a base frame; an unloading trough, the top of which is open, one end is closed, and the other end is open and connected to a second unloading chute; the unloading trough is connected to the base frame by at least four second elastic plates, the second elastic plates being installed at an angle; an air supply duct, the air supply duct being placed at the bottom of the unloading trough, one end being installed on a support frame, and the other end being installed on the base frame; a blower, the blower being installed in the air supply duct; and a second propulsion mechanism, the second propulsion mechanism being drivenly connected to the unloading trough.

[0013] Furthermore, the crushing device includes a multi-stage mesh, which comprises a fixed-edge plate, a movable-edge plate, and a multi-stage screen. The multi-stage screen has a downwardly concave arc-shaped mesh structure, with one side connected to the fixed-edge plate and the other side connected to the movable-edge plate. The fixed-edge plate is fixedly installed on one side of the second support frame, and the movable-edge plate movably overlaps the other side of the second support frame. A second sealing plate is attached to each end of the multi-stage screen and is installed on the support frame. A rotating drum has rotating shafts at both ends, partially inserted into the multi-stage screen. Each rotating shaft is installed via a rotating drum adjusting component. The system includes a support frame, with multiple grades of crushing components installed on the longitudinal circumferential surface of the rotating drum corresponding to the multi-stage screen; a screen adjusting component, one end of which is mounted on the second support frame and the other end is connected to the moving side plate; a cover, one end of which is hinged to the second support frame and the other end has a mounting plate, which overlaps the moving side plate when the cover is movably fastened to the rotating drum; a locking mechanism, one end of which is hinged to the second support frame and the other end of which movably locks the mounting plate and the moving side plate to the second support frame; and a drive mechanism, which is connected to a rotating shaft.

[0014] Furthermore, the screen adjustment component includes a base plate, one end of which is mounted on a second support frame, and the other end of which extends outward relative to the second support frame and connects to a vertical plate. The vertical plate has a U-shaped groove. A threaded cylinder passes through the U-shaped groove. A retaining ring is mounted on one end of the threaded cylinder. A limiting boss is mounted on the other end of the threaded cylinder. A push-pull screw passes through the limiting boss, the threaded cylinder, and the retaining ring in sequence and is threadedly connected to the threaded cylinder.

[0015] The locking mechanism includes a swing rod with both ends bent, one end fitted with a threaded sleeve and the other end fitted with a rotating shaft; a support sleeve fitted onto the rotating shaft and mounted on a support frame; and a support screw with the threaded sleeve passing through the bolt.

[0016] The graded crushing components include a first-stage crushing component, a second-stage crushing component, and a third-stage crushing component. The third-stage crushing component, the second-stage crushing component, and the first-stage crushing component are sequentially distributed longitudinally on the rotating drum. The third-stage crushing component corresponds to the hopper. The third-stage crushing component is spirally installed on the rotating drum. The second-stage crushing component includes multiple second-stage crushing rods, which are circumferentially distributed at intervals on the circumferential surface of the rotating drum. Each second-stage crushing rod intersects the axis of the rotating drum at an angle α, where 0 < α ≤ 30°. The first-stage crushing component includes multiple first-stage crushing rods, which are circumferentially distributed at intervals on the circumferential surface of the rotating drum. Each first-stage crushing rod intersects the axis of the rotating drum at an angle β, where 5° ≤ β ≤ 50°.

[0017] The present invention represents a significant advancement over the prior art:

[0018] 1. This utility model enables the simultaneous production of powdered tea, broken tea, and tea stems of different specifications from the same batch of machine-harvested tea leaves. Through hot rolling, this utility model improves the shaping and appearance of the tea leaves, resulting in a high yield of rolled tea leaves. During tea drying, the tea powder can be sieved, filtered, and recycled, avoiding waste. The tea pulverization process simultaneously yields multiple grades of powder and broken tea. This utility model achieves continuous production, meaning that the withered tea leaves are conveyed to the rolling mill, and then pulverized, improving production efficiency, increasing tea yield, and enhancing economic benefits.

[0019] 2. This utility model features a rotating drum equipped with multiple grades of pulverizing components. These components can be used to pulverize tea leaves, move the tea leaves, and disperse them. During the production of broken tea and powdered tea, the distance between the multi-stage screens and the rotating drum is adjusted using the drum and screen adjustment components. This allows the multiple grades of pulverizing components to press the tea leaves onto the screens, completing the grinding and pulverization process. Broken tea and tea powder of various sizes are filtered through the corresponding grade of screen. Furthermore, partitions are installed between adjacent grades of screens, and the filtered broken tea and tea powder are guided by a guide plate to the corresponding grade outlet for discharge.

[0020] 3. In this invention, the rotating drum features a spiral-shaped third-stage crusher, a long-rod-shaped second-stage crusher, and a short-rod-shaped first-stage crusher, arranged sequentially from the hopper towards the zero-stage discharge component. The spiral-shaped blades evenly distribute the tea leaves falling from the hopper while propelling them forward, preventing localized overload, blocking, and improving crushing efficiency. The long-rod-shaped second-stage crusher and the short-rod-shaped third-stage crusher further disperse the tea leaves, increasing contact between the tea leaves and the graded crushers and multi-stage screens, resulting in more uniform crushing and faster crushing speed. It is understood that the graded crushers of this invention improve crushing efficiency and uniformity, reduce clogging and energy consumption, extend equipment life, and improve product quality.

[0021] 4. The rotary drum adjusting component of this utility model is used to support and install the rotary drum, and can also adjust the position of the rotary drum. The support plate and the first limiting plate are connected at an intersection. The second bolt can thread-fix the first limiting plate to the support frame, and the first bolt can thread-fix the second limiting plate to the support frame.

[0022] 5. The screen spacing adjustment component of this utility model is used to push and pull the moving side plate. The moving side plate drives the multi-stage screen to move, thereby changing the spacing between the multi-stage screen and the multiple grades of crushing parts on the rotating drum. The limiting boss and the retaining ring clamp the threaded cylinder in the U-shaped groove of the vertical plate. When the threaded cylinder is rotated, the push-pull screw screws in and out of the threaded cylinder. The push-pull screw drives the moving side plate, which drives the multi-stage screen to move, thereby adjusting the spacing between the multi-stage screen and the rotating drum.

[0023] 6. This utility model features multi-point simultaneous kneading of tea leaves. Multiple kneading and pressurizing mechanisms are installed on the kneading movable plate, and multiple kneading discs are provided on the kneading worktable. Each kneading and pressurizing mechanism corresponds one-to-one with a kneading disc. The kneading movable plate and the kneading worktable are connected via multiple swing mechanisms. At least two of these swing mechanisms are connected to a kneading drive motor. Therefore, at least two swing mechanisms can drive the kneading movable plate to swing, which in turn drives multiple kneading and pressurizing mechanisms to swing simultaneously, achieving simultaneous kneading of tea leaves at multiple points. Furthermore, during kneading, a hot air mechanism can provide hot air to the kneading discs, achieving hot kneading, improving kneading quality, and enhancing the overall quality of the kneaded tea leaves. After kneading, the tea leaves are directly fed into a discharging and breaking-up mechanism for breaking up clumps, resulting in high work efficiency and cost savings in production.

[0024] 7. This utility model features a tea powder sieving function. Specifically, the drying drum is equipped with multiple sections of screen cylinders. These screen cylinders filter the tea powder produced during drying, separating it from the tea leaves in a timely manner. The filtered tea powder falls into a collection basket for recycling, preventing the accumulated tea powder from burning and producing a smoky smell, thus improving the quality of the dried tea. Multiple de-clumping guide strips are spirally distributed inside the drying drum. These strips rotate with the drum, pushing and moving the tea leaves upwards, thus turning the tea leaves and ensuring even heating. Furthermore, the rotating strips collide with the tea leaves, breaking up any clumps or blocks, making the tea leaves more loose and ensuring more thorough and even heating, improving drying efficiency and further enhancing the quality of the dried tea.

[0025] 8. The sieving cylinder on the drying cylinder of this utility model filters the tea powder while also expelling the moisture generated during the drying process. The top of the exhaust cap has an exhaust port. When the moisture generated during drying inside the drying cylinder enters the exhaust cap through the guide cylinder, the moisture follows the hot air and is expelled upwards from the exhaust port of the exhaust cap. The tea leaves are discharged from the discharge port of the exhaust cap, thus achieving separation of the tea leaves from the moisture.

[0026] 9. The baffle plate of this utility model is suspended at the port of the drying cylinder and spaced apart from the side of the drying cylinder. It does not affect the drying rotation and can also prevent the hot air ejected from the hot air pipe from rushing out in the opposite direction. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0028] Figure 1 This is a schematic diagram of the structure of a machine-harvested old leaf green tea processing device according to the present invention;

[0029] Figure 2 This is a schematic diagram of the hot rolling machine for machine-harvested old tea leaves in this utility model;

[0030] Figure 3 This is a partial structural diagram of the kneading machine in this utility model;

[0031] Figure 4 This is a schematic diagram of the connection between the kneading cover, the kneading cylinder, and the lifting device in this utility model;

[0032] Figure 5This is a schematic diagram of the structure of the present invention, in which a kneading workbench is provided with multiple kneading discs and a material unloading and disassembly mechanism is installed at the bottom of the kneading discs;

[0033] Figure 6 This is a schematic diagram of the unloading and disassembly mechanism in this utility model;

[0034] Figure 7 This is a schematic diagram of a uniform leaf deblocking machine according to the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the tea conveyor of this utility model;

[0036] Figure 9 This is a schematic diagram of the dynamic tea drying machine of this utility model;

[0037] Figure 10 This is a schematic diagram of a portion of the dynamic tea drying machine in this utility model;

[0038] Figure 11 This is a schematic diagram of the connection between the drying cylinder and the transmission mechanism in this utility model;

[0039] Figure 12 This is a schematic diagram of the drying cylinder in this utility model;

[0040] Figure 13 This is a schematic diagram of the structure of the drying cylinder in this utility model, in which a deblocking guide strip is installed inside.

[0041] Figure 14 This is a schematic diagram of one structure of the unloading mechanism in this utility model;

[0042] Figure 15 This is a schematic diagram of one structure of the feeding mechanism in this utility model;

[0043] Figure 16 This is a schematic diagram illustrating the structural application of a dynamic tea dryer capable of sieving powdered tea according to this utility model.

[0044] Figure 17 This is a schematic diagram of the pulverizing device for tea grading in this utility model.

[0045] Figure 18 This is a schematic diagram of the structure of the rotating drum of this utility model, which is equipped with multiple levels of crushing components;

[0046] Figure 19 This is a schematic diagram of the installation structure of the multi-level network in this utility model;

[0047] Figure 20 This is a schematic diagram of the structure of the rotary drum adjusting component of this utility model;

[0048] Figure 21This is a schematic diagram of the locking mechanism in this utility model;

[0049] Figure 22 This is a schematic diagram of a screen spacing adjustment component in this utility model;

[0050] Figure 23 This is a schematic diagram of one structure of the blanching mechanism in this utility model;

[0051] Figure 24 This is a schematic diagram of an installation structure of the blanching roller in this utility model;

[0052] Figure 25 This is a schematic diagram of one structure of the blanching conveyor in this utility model;

[0053] The names and serial numbers of each component in the diagram are as follows:

[0054] 1- Kneading machine, 11- Kneading workbench, 12- Kneading disc, 121- Discharge port, 13- Guardrail, 14- Guardrail base, 15- Kneading tea conveyor; 16- Leaf unblocking machine, 161- First motor platform, 162- Leaf unblocking motor, 163- Reducer, 164- Leaf unblocking shaft, 165- Leaf unblocking rod, 166- Leaf unblocking bearing seat; 17- Baffle, 18- Spray gun, 19- Air supply pipe, 110- Kneading drive motor, 111- First swing arm, 112- First support shaft, 113- First bushing, 114- Second bushing, 1 15-Second swing arm, 116-Second support shaft, 117-Kneading moving plate, 118-Reinforcing sleeve, 119-Kneading cylinder, 120-Kneading cap; 122-Screw jack, 1221-Screw jack, 1222-Lifting drive motor, 1223-Encoder, 123-Support rod, 124-Support frame, 125-Sliding bracket, 1251-Guide sleeve, 1252-Rhomboid bearing seat, 1253-Guide rod; 126-Tea distribution rack, 127-Tea guide cylinder, 128-First tea conveyor, 129-Tea distribution conveyor 130-Tea leaf transfer conveyor, 131-Tea leaf supply conveyor, 1311-Conveyor belt, 1312-Second baffle, 1313-Second toothed claw, 132-Second tea leaf conveyor, 133-Hot air valve, 134-Hot air pipe, 135-Hot air nozzle, 136-Tea leaf guide barrel, 137-Warm air blower, 138-Third bushing, 139-Third swing arm, 140-Third support shaft, 141-Tea leaf guide plate, 142-Fourth support shaft; 143-Unloading and disassembly mechanism, 1431-First limit seat, 1432-First limit sensor Device, 1433-Touch rod, 1434-First sealing plate, 1435-Second limit seat, 1436-Second limit sensor, 1437-First swing rod, 1438-Disintegration drive motor, 1439-Second motor platform, 1440-Support rod, 1441-Unsplitting disintegration cylinder, 1442-First drive shaft, 1443-Bearing seat, 1444-Unsplitting disintegration shaft, 1445-Disintegration rod, 1446-Support platform, 1447-Disintegration drive motor, 1448-Second drive shaft; 144-Temperature sensor, 145-Sensor bracket.

[0055] 2-Dryer, 21-Drying shell, 22-Drying cylinder, 2201-Roller, 222-Screen cylinder, 223-Support ring, 224-Debriding guide strip, 23-Roller, 24-Guide cylinder, 25-Exhaust cap, 251-Exhaust port, 252-Bar screen, 26-Cap, 27-Observation port, 28-Hinge, 29-Lock seat, 210-Lock rod, 211-Auxiliary roller component, 212-First support frame, 213-Collection basket, 214-Bracket, 215-Hot air pipe, 216-Auxiliary frame, 217-First driven wheel. 218-First bolt, 219-First transmission component, 220-First drive wheel, 221-First drive motor, 2211-First drive shaft; 225-Wind baffle, 226-Feed inlet, 227-Suspension rod; 200-Feeding mechanism, 2001-Feed chute, 2002-First unloading chute, 2003-Feeding frame, 2004-First bearing sleeve, 2005-First rotating shaft, 2006-First bearing seat, 2007-First motor, 2008-Second drive wheel. 2009 - Second transmission component; 20010 - First worktable; 20011 - First bearing housing; 20012 - First driven wheel; 20013 - First angle bracket; 20014 - Second bolt; 20015 - First elastic plate; 20016 - Second bearing sleeve; 20017 - Second bearing housing; 20018 - First drive shaft; 20019 - First push rod; 201 - Unloading mechanism; 2011 - Unloading chute; 2012 - Blower; 2013 - Second elastic plate; 2014 - Second angle bracket; 2015 - Third bolt; 2016 - Conveyor... Air duct, 2017-base frame, 2018-support frame, 2019-third driven wheel, 2020-second drive shaft, 2021-second worktable, 2022-third bearing seat, 2023-fourth bearing seat, 2024-second push rod, 2025-second transmission component, 2026-second drive wheel, 2027-second drive motor, 2028-second unloading chute, 2029-fifth bearing seat, 2030-second rotating shaft, 2031-third bearing sleeve; 300-first conveyor, 400-second conveyor, 500-third conveyor.

[0056] 3-Grinding device, 31-Cover, 32-Rotating drum, 33-First-stage crushing component, 34-Second-stage crushing component, 35-Hopper, 36-Feed control valve, 37-Feed pipe, 38-Multi-stage screen, 381-Third-stage screen, 382-Second-stage screen, 383-First-stage screen, 384-Moving edge plate, 385-Fixed edge plate, 39-Support base, 391-Support shaft, 310-Rotating shaft, 311-Transmission component, 312 - Driven wheel, 313 - Driving wheel, 314 - Drive shaft, 315 - Drive motor, 316 - Second support frame, 317 - Guide plate, 318 - Third stage outlet, 319 - Third stage unloading component, 320 - Conveyor, 321 - Second stage outlet, 322 - Second stage unloading component, 323 - Partition, 324 - First stage outlet, 325 - First stage unloading component, 326 - Longitudinal support component, 327 - Vertical support; 328 - Rotary drum adjusting component, 3281- Bushing, 32811- Shaft hole, 3282- Second bolt, 3283- Support plate, 3284- Bearing seat, 3285- First limiting plate, 3286- First bolt, 3287- Second limiting plate, 32871- Adjusting groove; 329- Locking mechanism, 3291- Support screw, 3292- Lever, 3293- Anti-detachment plate, 3294- Threaded sleeve, 3295- Second swing arm Rod, 3296-rotating shaft, 3297-support sleeve; 330-screen adjustment part, 3301-handle, 3302-push-pull screw, 3303-threaded cylinder, 3304-clamping ring, 3305-base plate, 3306-limiting boss, 3307-vertical plate, 33071-U-shaped groove; 331-third-stage crushing part, 332-second sealing plate, 333-stepping plate, 334-zero-stage outlet, 335-zero-stage unloading part.

[0057] 4-Firing mechanism; 41-First tea leaf conveyor; 42-First conveyor belt; 43-Side baffle; 44-First baffle; 441-First toothed claw; 45-Reinforcing rod; 46-Firing hot air pipe; 47-First hot air valve; 48-First leaf-leveling rotary drum; 49-Leaf-leveling rod; 410-Leaf-leveling drive motor; 411-Leaf-leveling drive wheel; 412-Leaf-leveling drive shaft; 413-Leaf-leveling transmission component; 414-Leaf-leveling driven wheel; 415-Leaf-leveling shaft; 416-First support frame; 417-First tea leaf feed hopper; 418-Firing shell; 419-Firing support frame; 420-First bracket; 421-First warm air blower; 422-First support net; 423-Firing unloading chute; 424-Firing dehumidification cap. 425-First screw, 426-First nut, 427-First support rod, 428-First cover, 429-First observation port, 430-Second support rod, 431-Second screw, 432-Second nut, 433-Slot, 434-Damping pipe, 435-Heat dissipation area, 436-Heat dissipation hole, 439-Support rod, 440-Extension cylinder, 441-Firing roller, 442-First rolling wheel, 443-Second auxiliary wheel, 444-First support, 445-Firing drive motor, 446-Firing drive wheel, 447-Firing transmission component, 448-First firing driven wheel, 449-Firing drive shaft, 450-First drive roller, 451-Second firing driven wheel, 452-First auxiliary wheel. Detailed Implementation

[0058] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0059] Example 1:

[0060] like Figures 1 to 25 As shown in the figure, this embodiment of a machine-harvested old-leaf green tea processing device includes a fixation mechanism 4, a rolling machine 1, a dryer 2, and a pulverizing device 3. The fixation mechanism 4 uses hot air to directly contact and heat the tea leaves, and the generated moisture is pushed outwards by the hot air. One end of the rolling machine 1 is connected to the fixation mechanism 4, and the rolling machine 1 uses hot rolling. The dryer 2 is a drum-type dynamic dryer, with one end connected to the other end of the rolling machine 1; the pulverizing device 3 is connected to the other end of the dryer 2, and the pulverizing device 3 can produce tea stems, multiple grades of broken tea, and multiple grades of powdered tea.

[0061] Work style:

[0062] The machine-picked old tea leaves are placed into the fixing mechanism 4, and hot air is introduced into the fixing mechanism 4. The tea leaves are in direct contact with the hot air while rolling in the fixing mechanism. The hot air not only fixes the tea leaves, but also pushes the moisture generated during fixing out in time, thereby improving the quality of the tea leaves obtained from fixing.

[0063] The withering mechanism conveys the withered tea leaves to the rolling machine 1. During the conveying process, hot air is also supplied to the tea leaves to prevent the tea temperature from dropping. When the tea leaves are conveyed to the rolling machine, hot air is also supplied to the rolling machine, and the rolling machine 1 performs hot rolling on the tea leaves.

[0064] After kneading, the tea leaves are conveyed to dryer 2. While the dryer 2 dynamically dries the tea leaves, it also promptly sieves and filters the tea powder produced during the drying process and recycles the filtered tea powder.

[0065] The dried tea leaves are conveyed to the pulverizing device 3, which pulverizes the tea leaves to produce tea powder and broken tea. The pulverizing device 3 can also produce tea stems. The pulverizing device does not pulverize the tea leaves, but rather loosens the tea leaves conveyed from the dryer, making the tea leaves more loose and the strips more distinct.

[0066] In some alternative embodiments, one structure of the kneading machine is provided. For example... Figure 2-8 As shown, the kneading machine 1 includes a kneading worktable 11, a tea guide barrel 136, a kneading movable plate 117, a material unloading and de-clumping mechanism 143, and a tea kneading conveyor 15. The kneading worktable 11 is equipped with multiple kneading discs 12; each kneading disc 12 is connected to a tea guide barrel 136, the tea guide barrel 136 is equipped with a tea pusher for pushing tea leaves onto the kneading disc 12, and each tea guide barrel is equipped with a hot air mechanism; the kneading movable plate is connected to the kneading worktable through at least three swinging mechanisms, and a kneading pressure mechanism is installed on the kneading movable plate corresponding to one kneading disc 12, wherein at least two swinging mechanisms are respectively connected to a kneading drive motor 110, and at least two swinging mechanisms drive the kneading movable plate to swing, and the kneading pressure mechanism and the kneading disc cooperate with each other to knead the tea leaves; each kneading disc 12 is equipped with a discharge port 121, and the discharge port 121 is equipped with a discharge and de-clumping mechanism 143; the kneading tea leaf conveyor 15 is installed at the bottom of the kneading worktable 11 for collecting and conveying the tea leaves discharged by the discharge and de-clumping mechanism 143.

[0067] The unloading and unblocking mechanism is used to close and open the unloading port. When the unloading and unblocking mechanism is in the open state, the tea clumps obtained by kneading in the kneading disc fall into the unloading and unblocking mechanism through the unloading port. The unloading and unblocking mechanism breaks up and loosens the tea clumps that have entered it. The loosened tea clumps fall into the kneading tea conveyor 15.

[0068] A connection structure between the tea guide barrel 136 and the kneading disc: the side of the tea guide barrel 136 has a tea outlet that communicates with the kneading disc 12.

[0069] Multiple kneading and pressing mechanisms are installed on the kneading movable plate 117, corresponding to the multiple kneading discs on the kneading worktable. These mechanisms form a one-to-one correspondence with the kneading discs; that is, one kneading and pressing mechanism corresponds to one kneading disc. The kneading and pressing mechanisms work together with the kneading discs to knead the tea leaves. The kneading movable plate 117 can be driven by at least two swinging mechanisms. The driven kneading movable plate causes the multiple kneading and pressing mechanisms on it to swing simultaneously, thus enabling the simultaneous kneading of multiple tea leaves. This overcomes the problem of low efficiency in tea kneading caused by single-operation in existing kneading machines.

[0070] Understandably, the oscillating mechanism allows the kneading moving plate to oscillate relative to the kneading worktable while supporting the kneading moving plate at a distance from the top surface of the kneading worktable.

[0071] like Figure 2 As shown, a protective mechanism is added around the swing mechanism. The protective mechanism includes a guardrail 13 and a guardrail base 14. The guardrail 13 has an arc-shaped structure, and both ends are installed on the kneading worktable 11 through the guardrail base 14. The guardrail 13 includes multiple arc-shaped bars, which are arranged vertically at intervals in parallel.

[0072] like Figure 1 As shown, a cleaning mechanism is added to facilitate cleaning the kneading worktable and kneading disc. The cleaning mechanism includes a spray gun 18 and an air supply pipe 19, which is connected to the spray gun 18 to supply air. The air supply pipe can be connected to a compressed air station or air compressor within the factory. In use, the spray gun 18 is held in hand, and the trigger on the spray gun 18 is pressed. The spray gun 18 sprays compressed air outwards, and moving the spray gun allows for cleaning of the kneading worktable, kneading disc, etc.

[0073] like Figure 2 As shown, baffles 17 are added to the bottom of the tea kneading conveyor 15 and the kneading worktable. Baffles 17 are installed on both sides of the tea kneading conveyor extending outward from the bottom of the kneading worktable 11. The baffles 17 can guide the tea leaves that splash onto them to the tea kneading conveyor.

[0074] The tea leaf conveyor can be a belt conveyor or a plate conveyor, both of which are currently technologically mature. This prevents the rolled tea leaves from leaking out of the conveyor belt or plate during the conveying process.

[0075] A structure for conveying tea leaves to a rolling machine is provided, comprising a tea distribution rack 126, a tea delivery conveyor 129, a first tea conveyor 128, a second tea conveyor 132, and a tea supply conveyor 131. The tea distribution rack 126 is mounted on the rolling worktable 11. The tea delivery conveyor 129, the first tea conveyor 128, and the second tea conveyor 132 are mounted on the tea distribution rack 126. The first tea conveyor 128 is located at the bottom of one end of the tea delivery conveyor 129, and the second tea conveyor 132 is located at the bottom of the other end of the tea delivery conveyor 129. One end of the tea transfer conveyor 130 is connected to the tea delivery conveyor 129, and the other end is connected to the tea supply conveyor 131.

[0076] To reduce temperature changes in tea during transport, multiple heaters 137 are installed at intervals on the tea delivery conveyor 129, the first tea conveyor 128, the second tea conveyor 132, and / or the tea supply conveyor 131.

[0077] The first structure can be: multiple heaters 137 are installed at intervals on the tea delivery conveyor 129, the first tea conveyor 128, the second tea conveyor 132, or the tea supply conveyor 131.

[0078] The second structure can be: multiple heaters 137 are installed at intervals on the tea delivery conveyor 129, the first tea conveyor 128, the second tea conveyor 132, and the tea supply conveyor 131.

[0079] The third structure can be: multiple heaters 137 are installed at intervals on the tea delivery conveyor 129 and the tea supply conveyor 131.

[0080] The fourth structure can be: multiple warm air blowers 137 are installed at intervals on the first tea conveyor 128, the second tea conveyor 132, and the tea supply conveyor 131.

[0081] It is understandable that the installation is not limited to the four structures mentioned above; other suitable installation structures can be selected as needed.

[0082] The number of warm air blowers installed can be 2, 3, 4, 5, 6, 7, 8, 9, or 10. The warm air blowers can provide hot air to the conveyor, thereby heating the tea leaves being transported by the conveyor and helping to slow down the temperature drop of the tea leaves during the transportation process after the withering process.

[0083] It should be noted that the tea delivery conveyor 129, the first tea conveyor 128, the second tea conveyor 132, and the tea supply conveyor 131 all adopt the existing mature mesh belt conveyor technology.

[0084] It should also be noted that the heater supplies hot air from the bottom of the conveyor belt. The hot air rises from the bottom of the belt to the top, heating both the belt and the tea leaves being transported. The heater provides hot air at temperatures ranging from 45℃ to 55℃.

[0085] like Figure 23 As shown, multiple second baffles 1312 are installed parallel to each other at intervals on the conveyor belt 1311 of the tea supply conveyor 131. The top of the second baffle 1312 is provided with a serrated second claw 1313. The second baffles 1312 push the tea leaves unloaded onto the conveyor belt forward. When the tea supply conveyor is conveying tea at an incline, the tea leaves will accumulate on the second baffles 1312. The second claws 1313 will grasp the tea leaves that fall onto the edge of the second baffle, thereby preventing the tea leaves from slipping and facilitating the second baffle to push the tea leaves upward smoothly.

[0086] like Figure 1 As shown, the first tea conveyor 128 and the second tea conveyor 132 can each convey tea leaves to two tea guide cylinders 127. During conveying, the tea conveyor can first convey tea leaves to one of the two tea guide cylinders, and then convey them in the opposite direction to the other tea guide cylinder. The tea guide cylinders guide the tea leaves to the tea guide barrel 136.

[0087] In some embodiments, a structure for the hot air mechanism is provided. The hot air mechanism is connected to the tea guide barrel 136 and supplies hot air to the tea guide barrel 136. The tea guide barrel is connected to the kneading disc, and the hot air enters the kneading disc through the tea guide barrel, providing heat to the tea leaves on the kneading disc.

[0088] like Figure 2 , 3 As shown, the hot air mechanism includes a hot air duct 134, a hot air valve 134, and a hot air nozzle 135. One end of the hot air duct 134 is connected to one end of the hot air nozzle 135, and the other end of the hot air nozzle 135 is installed in the tea guide container. The hot air valve 134 is installed on the hot air duct 134 and is used to control the supply or disconnection of hot air from the hot air duct to the hot air nozzle.

[0089] Work style:

[0090] Opening the hot air valve 134 allows hot air to be supplied from the hot air pipe 134 to the hot air nozzle 135. The temperature of the hot air can be between 45℃ and 55℃. While the hot air nozzle supplies hot air to the tea guide container, it also helps to push the tea leaves inside into the kneading disc. The hot air then enters the kneading disc through the tea guide container, heating the disc and achieving hot kneading of the tea leaves.

[0091] The benefits of hot rolling tea leaves include: 1. Promoting cell breakage: Hot rolling breaks down the cell walls of tea leaves through heating and mechanical force, releasing cell fluid. This helps to evenly distribute the tea's components, increasing the concentration and flavor of the tea soup. 2. Hot rolling accelerates the reaction of enzymes and polyphenols, forming a unique aroma and color. 3. Improving tea leaf appearance: Hot rolling softens the tea leaves, making them easier to shape and resulting in tightly rolled, aesthetically pleasing leaves, thus increasing their commercial value. 4. Enhancing aroma: During hot rolling, aromatic substances in the tea leaves volatilize due to heat, contributing to aroma formation and making the tea more fragrant. 5. Improving drying efficiency: Hot rolling reduces the moisture content of the tea leaves, shortening subsequent drying time, increasing production efficiency, and helping to maintain tea quality. 6. Improving taste: Hot rolling makes the tea's components more easily dissolved, resulting in a richer tea soup, reduced astringency, and a better overall taste.

[0092] In some embodiments, a structure for the unloading and disassembling mechanism is provided. For example... Figure 6 As shown, the unloading and disassembling mechanism includes a uniform leaf disassembling cylinder 1441, a uniform leaf disassembling shaft 1444, a disassembling drive motor 1438, and a sealing mechanism. The uniform leaf disassembling cylinder 1441 is vertically installed at the bottom of the unloading port 121; the uniform leaf disassembling shaft 1444 is placed inside the uniform leaf disassembling cylinder 1441, with both ends rotatably connected to the uniform leaf disassembling cylinder 1441, and multiple disassembling rods 1445 are distributed at intervals on the circumferential side along the axial direction; the disassembling drive motor 1438 is installed in the uniform leaf disassembling cylinder 1441 and is drively connected to the uniform leaf disassembling shaft 1444; the sealing mechanism is movably positioned between the unloading port 121 and the uniform leaf disassembling cylinder 1441, enabling the unloading port to open and close.

[0093] The number of disintegrating rods installed can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 or 22, etc.

[0094] One mounting structure for the deblocking drive motor 1438 includes an additional second motor platform 1439, which is mounted on the uniform leaf deblocking cylinder 1441 to support and mount the deblocking drive motor 1438.

[0095] The rotational connection between the uniform leaf unblocking shaft 1444 and the uniform leaf unblocking cylinder 1441 is as follows: the uniform leaf unblocking shaft 1444 and the uniform leaf unblocking cylinder 1441 are connected through bearing seats 1443. That is, each end of the uniform leaf unblocking shaft 1444 is mounted on the uniform leaf unblocking cylinder 1441 through a bearing seat 1443.

[0096] Work style:

[0097] The sealing mechanism is in the open state for the discharge port 121. The tea clumps on the kneading disc fall into the leaf-unblocking cylinder 1441 through the discharge port. The unblocking drive motor 1438 and the leaf-unblocking shaft 1444 are connected by a first drive shaft 1442. The unblocking drive motor 1438 drives the first drive shaft 1442 to rotate. The first drive shaft 1442 drives the leaf-unblocking shaft 1444 to rotate. The leaf-unblocking shaft 1444 drives the multiple unblocking rods 1445 on it to rotate. The multiple unblocking rods 1445 rotate and strike the falling tea clumps, which can break the tea clumps apart and achieve the function of unblocking and loosening.

[0098] In some embodiments, a structure for the sealing mechanism is provided, such as... Figure 6 As shown, the sealing mechanism includes a first limiting seat 1431, a second limiting seat 1435, a first sealing plate 1434, and a sealing plate drive motor 1447. The sealing plate drive motor 1447 is provided with a second drive shaft 1448. The first limiting seat 1431 is equipped with a first limiting sensor 1432; the second limiting seat 1435 is provided with a second limiting sensor 1436 and is spaced apart from the first limiting seat 1431; one end of the first sealing plate 1434 is provided with a touch rod 1433, and the other end is provided with a first swing rod 1437; the sealing plate drive motor 1447 and the first swing rod 1437 are connected by transmission through the second drive shaft 1448; wherein, the sealing plate drive motor 1447 drives the first swing rod 1437 to swing, and the first sealing plate 1434 drives the touch rod 1433 to swing between the first limiting seat 1431 and the second limiting seat 1435.

[0099] One possible structure for the first limiting seat 1431 and the second limiting seat 1435 is a U-shaped seat. This allows the first and second limiting seats to provide support for the contact rod.

[0100] The second drive shaft 1448 and the first swing arm 1437 can be connected by a key.

[0101] It should be noted that when the touch rod 1433 is on the first limit seat 1431, the first sealing plate 1434 closes the discharge port 121. When the touch rod 1433 is on the second limit seat 1435, the first sealing plate 1434 disengages from the discharge port 121, the discharge port 121 is open, and the tea leaves on the kneading disc can be discharged through the discharge port.

[0102] The first limit sensor 1432 and the second limit sensor 1436 are both electrically connected to the sealing plate drive motor 1447 and are used to limit the operation of the unblocking drive motor.

[0103] Understandably, a control module (not shown in the figure) is added to facilitate the control of the unblocking drive motor and the sealing drive motor. The first limit sensor 1432, the second limit sensor 1436, the sealing drive motor 1447, and the unblocking drive motor 1438 are all electrically connected to the control module.

[0104] It should be noted that, as is common knowledge in this field, the control module used in this solution and the motion control of the devices connected to it are based on mature microcontroller technology, which can be easily purchased from the market and used after simple debugging.

[0105] Work style:

[0106] Initially, the touch lever is positioned at the first limit seat 1431. The control module controls the sealing plate drive motor 1447 and the unblocking drive motor 1438 to operate. The sealing plate drive motor 1447 drives the second drive shaft 1448 to rotate, which in turn drives the first swing rod 1437 to rotate. The first swing rod 1437 drives the first sealing plate 1434 to swing, which in turn drives the touch lever 1433 to rotate towards the second limit seat 1435. The rotation continues until the touch lever 1433 touches the second limit sensor 1436. The second limit sensor 1436 then sends a data signal to the control module, which, upon receiving this signal, stops the sealing plate drive motor 1447 from operating.

[0107] The control module can be set to pause the operation of the unblocking drive motor 1438 30 to 60 seconds after the touch rod 1433 touches the second limit sensor 1436, and the sealing plate drive motor 1447 drives the second drive shaft 1448 to rotate. The second drive shaft 1448 drives the first swing rod 1437 to rotate. The first swing rod 1437 drives the first sealing plate 1434 to swing. The first sealing plate 1434 drives the touch rod 1433 to rotate towards the first limit seat 1431. When the touch rod 1433 touches the first limit sensor 1432, the first limit sensor 1432 sends a data signal to the control module. Upon receiving the data signal, the control module controls the sealing plate drive motor 1447 and the unblocking drive motor 1438 to temporarily stop working, and the first sealing plate 1434 closes at the discharge port.

[0108] It should be noted that the control module can also be set to a time T after the touch rod touches the first limit sensor, with T ranging from 20 to 60 minutes. After the touch rod touches the first limit sensor for 20, 30, 40, 50, or 60 minutes, the control module controls the sealing plate drive motor 1447 and the unblocking drive motor 1438 to work again, repeating the above cycle. It is understandable that T can also be set according to the tea rolling time, i.e., based on the actual time required for the tea rolling process.

[0109] In some embodiments, in order to further unbundle the tea leaves, a leaf unbundling machine 16 is added. The leaf unbundling machine 16 is installed on the tea kneading conveyor 15 and is used to unbundle the tea leaves conveyed by the tea kneading conveyor 15.

[0110] The leaf unblocking machine 16 includes a leaf unblocking shaft 164, both ends of which are mounted on the tea kneading conveyor 15 via leaf unblocking bearing seats 166, and multiple leaf unblocking rods 165 are spaced apart on the circumferential side along the axial direction; and a leaf unblocking motor 162, which is mounted on the tea kneading conveyor 15 and is connected to the leaf unblocking shaft 164 via a reducer 163.

[0111] The number of uniform leaf deblocking rods 165 that can be installed can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 or 22, etc.

[0112] Work style:

[0113] The leaf-unbundling motor 162 drives the reducer 163 to work, and the reducer 163 drives the leaf-unbundling shaft 164 to work. The leaf-unbundling shaft 164 then drives the multiple leaf-unbundling rods on it to rotate. The multiple leaf-unbundling rods unbundle the tea leaves conveyed by the tea-rolling conveyor, and achieve the second unbundling of the tea leaves, thus effectively preventing tea clumps or blocks from entering the next tea processing step.

[0114] In some embodiments, a structure of the swing mechanism is provided. The swing mechanism includes a first swing arm 111 and a second swing arm 115. One end of the first swing arm 111 is connected to the kneading moving plate 117; one end of the second swing arm 115 is rotatably connected to the other end of the first swing arm 111 via a first support shaft 112, and the other end is rotatably connected to the kneading worktable 11 via a second support shaft 116.

[0115] A connection structure between the first and second swing arms: A first bushing 113 is provided at one end of the first swing arm. Second bushings 114 are provided at both ends of the second swing arm. The first bushing 113 on the first swing arm and a second bushing at one end of the second swing arm 115 are connected by a first support shaft 112. The first and second swing arms can rotate relative to each other.

[0116] It should be noted that when the swing mechanism is connected to the kneading drive motor 110, the kneading drive motor 110 is connected to the second support shaft 116. The second support shaft is fixedly connected to the second swing arm. When the kneading drive motor drives the second support shaft 116 to rotate, the second support shaft 116 drives the second swing arm to rotate, the second swing arm pushes the first swing arm to swing, and the first swing arm drives the kneading movable plate 117 to swing.

[0117] In some alternative embodiments, one structure of the tea-pulling mechanism is provided. The tea-pulling mechanism is used to push tea leaves from the tea guide container into the kneading disc. The tea-pulling mechanism includes a tea-pulling plate 141 and a third swing arm 139. One end of the tea-pulling plate 141 is rotatably connected to the kneading worktable 11 via a fourth support shaft 142; one end of the third swing arm 139 is connected to the kneading movable plate 117, and the other end is rotatably connected to the tea-pulling plate 141 via a third support shaft 140.

[0118] The third swing arm 139 is provided with a third bushing 138, which is connected to the tea pick 141 via a third support shaft 140. That is, one end of the third support shaft 140 is rotatably connected to the third bushing 138, and the other end is connected to the tea pick 141.

[0119] When the kneading plate 117 swings, it drives the third swing arm 139 to swing. The third swing arm 139 drives the tea leaf pick 141 to swing through the third support shaft 140. When the tea leaf pick 141 swings, it pushes the tea leaves in the tea leaf guide barrel 136 into the kneading disc 12.

[0120] Understandably, the tea-stirring plate can rotate relative to the kneading worktable via the fourth support shaft. The third swing arm can rotate relative to the third support shaft via the third bushing.

[0121] In some alternative embodiments, one structure of the kneading and pressing mechanism is provided. For example... Figure 4 As shown, the kneading and pressurizing mechanism includes a kneading cylinder 119, a kneading pressure cap 120, a screw jack 122, and a temperature sensor 144. The kneading cylinder 119 extends through the kneading movable plate 117 to the kneading disc 12; the kneading pressure cap 120 is movably placed on the kneading cylinder 119, and its top is connected to a sliding bracket 125. The sliding bracket 125 is slidably mounted on a support frame 124, and the support frame 124 is mounted on the kneading movable plate 117; the screw jack 122 is provided with a retractable screw, which is mounted on the support frame 124, and the screw is connected to the sliding bracket 125 through a support rod 123; the temperature sensor 144 is mounted on the sliding bracket 125.

[0122] Understandably, a controller (not shown in the diagram) is added to facilitate the operation of the kneading press. The controller is electrically connected to the kneading press.

[0123] To further strengthen the connection between the kneading drum and the kneading moving plate, a reinforcing sleeve 118 is added. The kneading drum is mounted to the kneading moving plate 117 via the reinforcing sleeve 118.

[0124] It should be noted that the kneading plate has holes for installing the kneading cylinder.

[0125] When the screw jack is working, it can drive the screw to extend or retract. The length of the screw can be adjusted according to the kneading needs. The screw drives the kneading pressure cap to move towards the kneading disc, which can increase the kneading pressure.

[0126] One structure of a screw jack includes a screw jack 1221, a lifting drive motor 1222, and an encoder 1223. The screw jack 1221 is provided with a screw and an input shaft. Both ends of the input shaft extend out of the screw jack. One end of the input shaft is connected to the lifting drive motor 1222 for transmission, and the other end is connected to the encoder 1223. The screw jack 1221 is mounted on a support frame 124.

[0127] The lifting drive motor 1222 drives the input shaft to rotate, the input shaft drives the screw jack 1221 to work, and the screw jack 1221 drives the screw to move.

[0128] Both the lifting drive motor 1222 and the encoder 1223 are electrically connected to the controller. The encoder transmits data information to the controller in real time. The controller controls the lifting drive motor to work based on the data information transmitted by the encoder, which in turn controls the screw jack to work, thereby controlling the movement of the screw.

[0129] It should be noted that when the jack drive motor rotates clockwise to drive the input shaft, the screw jack drives the lead screw to extend outward. When the jack drive motor rotates counterclockwise to drive the input shaft, the screw jack drives the lead screw to retract.

[0130] The extension of the lead screw increases the kneading pressure of the kneading cap. The retraction of the lead screw reduces the kneading pressure of the kneading cap.

[0131] Understandably, one structure of the screw jack can be an existing, technologically mature screw jack.

[0132] Temperature sensor 144 is mounted on sliding bracket 125 via sensor bracket 145. The temperature sensor can monitor the air temperature of the kneading disc in real time during kneading.

[0133] The encoder can be set with upper and lower limits. The lower limit corresponds to the maximum retraction height of the lead screw, and the upper limit corresponds to the maximum extension length of the lead screw. Understandably, the gap between the kneading cap and the kneading disc is minimized when the lead screw is at its maximum extension length. When the encoder is at its upper limit, the controller can stop the lifting motor from operating for the duration required for tea kneading. After the kneading time is reached, the controller then controls the lifting motor to reverse, causing the lead screw to retract upwards to the height corresponding to the lower limit of the encoder.

[0134] In some alternative embodiments, one structure of the dryer is provided. For example... Figure 9-16As shown in the figure, this embodiment of a dynamic tea drying machine for sieving powdered tea includes a drying cylinder 22, a baffle plate 225, a guide cylinder 24, an exhaust cap 25, a discharge mechanism 201, a collection basket 213, a drying shell 21, and a transmission mechanism. The drying cylinder 22 is rotatably mounted on the first support frame 212, and multiple screen cylinders 222 are spaced apart along the length of the drying cylinder 22. Multiple deblocking guide strips 224 are distributed at intervals on the inner side of the drying cylinder 22, and the multiple deblocking guide strips extend in a spiral distribution. The baffle plate 225 is suspended at one end of the drying cylinder 22 and connected to the hot air pipe 215. The baffle plate 225 has a feed inlet 226, which is connected to the feeding mechanism 200. One end of the guide cylinder 24 is connected to the other end of the drying cylinder 22. The exhaust cap 25 is suspended on the other end of the guide cylinder 24, with an exhaust port 251 at the top and a discharge port at the bottom. The discharge mechanism 201 is connected to the discharge port. A collection basket is movably installed at the bottom of each screen cylinder 222. The drying shell 21 covers the drying cylinder 22 and is installed on the top of the first support frame 212. The transmission mechanism is connected to the drying cylinder 22.

[0135] like Figure 9 As shown, when the hot air pipe 215 obstructs the supply of tea leaves to the feeding mechanism 200, the hot air pipe can be bent to provide working space above the feeding mechanism for feeding the kneaded tea leaves.

[0136] like Figure 11 As shown, the baffle plate 225 is suspended inside the port of the drying cylinder.

[0137] like Figure 12 As shown, the screen cylinder 222 allows hot air to pass through while filtering the tea powder generated during the drying process inside the drying cylinder. The tea powder falls into the collection basket below the drying cylinder through the screen cylinder, thus achieving the recycling of the tea powder.

[0138] Understandably, such as Figure 9 , 10 As shown, baffles are installed on both sides of the first support frame 212. The width of the baffles can extend from the top of the support frame to its middle. This allows the tea powder carried by the hot air in the drying cylinder to fall into the collection basket below as it is blocked by the baffles when it is sprayed outward through the screen cylinder, thus reducing the amount of tea powder lost.

[0139] like Figure 13As shown, multiple de-clumping guide strips are distributed inside the drying drum, extending in a spiral pattern. This overcomes the problem of existing spiral blades that only push the tea leaves without loosening them. The multiple de-clumping guide strips push the tea leaves forward within the drying drum while simultaneously moving them upwards, thus tumbling the tea leaves and ensuring even heating. Furthermore, as the drying drum rotates, the multiple de-clumping guide strips collide with the tea leaves, breaking up any clumps or blocks of tea, making the tea leaves more loose and ensuring more thorough and even heating, thereby improving drying efficiency and the quality of the dried tea.

[0140] like Figure 16 As shown, multiple units of this invention can be used in series to achieve multiple dynamic drying processes. Tea leaves can be transferred between adjacent dynamic dryers via a conveyor.

[0141] It should be noted that, as Figure 16 As shown, a structure for drying tea leaves by connecting multiple dynamic dryers in series is presented. The unloading mechanism of the first dynamic dryer unloads the tea leaves into the first conveyor 300. The first conveyor 300 conveys the tea leaves to the second conveyor 400. The second conveyor 400 unloads the tea leaves into the feeding mechanism of the second dynamic dryer. The unloading mechanism of the second dynamic dryer unloads the tea leaves dried in the second dynamic dryer into the third conveyor 500. The third conveyor 500 conveys the tea leaves to the next conveyor. This process is repeated to connect multiple dynamic dryers in series, thus enabling the tea leaves to be dried multiple times.

[0142] In some alternative embodiments, one structure of the transmission mechanism is provided. For example... Figure 11 As shown, the transmission mechanism includes a first driven wheel 217, a first drive motor 221, and a first driving wheel 220. The first driven wheel 217 is mounted to the end face of the drying cylinder 22 by multiple first bolts 218; the first drive motor 221 is provided with a first drive shaft 2211; the first driving wheel 220 is mounted on the first drive shaft 2211, and the first driving wheel 220 is connected to the first driven wheel 217 in a transmission connection.

[0143] The number of the first bolts 218 can be 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, or 22, etc. Of course, it is not limited to these; the appropriate number of first bolts can be selected according to the actual needs of the work.

[0144] A transmission connection structure between the first driving gear 220 and the first driven gear 217, wherein the first driving gear 220 and the first driven gear 217 can be connected by meshing transmission. The first driving gear 220 and the first driven gear 217 are gear structures.

[0145] Another transmission connection structure between the first driving pulley 220 and the first driven pulley 217 involves a transmission connection between the first driving pulley 220 and the first driven pulley 217 via a first transmission member 219. When the first transmission member 219 is a transmission belt, the first driving pulley 220 and the first driven pulley 217 form a pulley structure. When the first transmission member 219 is a transmission chain, the first driving pulley 220 and the first driven pulley 217 form a sprocket structure.

[0146] Work style:

[0147] The first drive motor 221 drives the first drive shaft 2211 to rotate, the first drive shaft 2211 drives the first drive wheel 220 to rotate, the first drive wheel 220 drives the first driven wheel 217 to rotate through the first transmission component 219, and the first driven wheel 217 drives the drying drum 22 to rotate.

[0148] In some alternative embodiments, a rotating structure for the drying drum is provided, with auxiliary rollers 211 and rollers 23 added. For example... Figure 9-11 As shown, two auxiliary rollers 211 are installed in parallel at intervals at both ends of the first support frame 212, and rollers 23 are installed at both ends of the drying cylinder 22. The two auxiliary rollers 211 support the rotation of one roller 23.

[0149] The auxiliary roller component can consist of a roller and a support base, with both ends of the roller rotatably mounted on the support base.

[0150] The rollers 23 at both ends of the drying cylinder are each supported by two auxiliary rollers. When the drying cylinder is subjected to rotational driving force, the two auxiliary rollers at both ends of the drying cylinder support the drying cylinder to rotate.

[0151] An installation structure for the auxiliary roller component 211: The auxiliary roller component is installed on the first support frame 212 via an auxiliary frame 216.

[0152] In some alternative embodiments, one structure of the drying cylinder is provided. For example... Figure 12 As shown, the drying cylinder 22 also includes a roller 2201 and a support ring 223. A screen cylinder 222 is installed between two adjacent rollers 2201, and at least one support ring 223 is sleeved on the screen cylinder 222.

[0153] The screen cylinder 222 can be fitted with 1, 2, 3, or 4 support rings. The support rings can enhance the load-bearing capacity of the screen cylinder and prevent deformation of the screen cylinder.

[0154] Understandably, the sides of the drum are sealed. The screen cylinder filters out tea powder produced during the drying process. The drying drum combines the drum and the screen cylinder to avoid a completely permeable structure. The drum helps to concentrate heat inside the drying drum, maintaining a certain drying temperature and thus achieving the desired tea drying effect.

[0155] In some embodiments, a cover 26, a hinge 28, a locking seat 29, and a locking rod 210 are added to facilitate observation of the drying process inside the drying drum. For example... Figure 10 As shown, the exhaust cap 25 has an observation port 27. One end of the cover 26 is installed on the exhaust cap 25 via a hinge 28. One end of the locking rod 210 is installed on the cover 26 via another hinge 28, and the other end is movably fixed to the exhaust cap 25 via the locking rod 210.

[0156] One possible structure for the locking rod is a screw. The locking seat has a through hole, and the exhaust cap has a corresponding threaded hole. To fix the locking seat to the exhaust cap, the screw is passed through the through hole and then screwed into the threaded hole. Tightening the screw secures the locking seat to the exhaust cap, and the cover closes the observation port. To separate the locking seat from the exhaust cap, the screw is unscrewed, allowing the locking seat to detach and the cover to be opened, enabling staff to observe the drying process inside the drying drum through the observation port. Understandably, if the lighting inside the drying drum is insufficient, a flashlight can be used to shine into the drum through the observation port to increase brightness and facilitate observation.

[0157] In some embodiments, a structure for the unloading mechanism is provided. For example... Figure 14 As shown, the unloading mechanism 201 includes a base frame 2017, an unloading trough 20111, an air supply duct 2016, a blower 2012, and a second propulsion mechanism. The top of the unloading trough 2011 is open, one end is closed, and the other end is open and connected to the second unloading inclined chute 2028; the unloading trough 20111 is connected to the base frame 2017 by at least four second elastic plates 2013, which are installed at an angle; the air supply duct 2016 is located at the bottom of the unloading trough 20111, with one end installed on the support frame 2018 and the other end installed on the base frame 2017; the blower 2012 is installed on the air supply duct 2016; and the second propulsion mechanism is drivenly connected to the unloading trough 20111.

[0158] The top of the unloading chute is open to facilitate the feeding of tea leaves. One end of the unloading chute is closed to prevent tea leaves from falling out from that end.

[0159] The air supply duct and the bottom of the unloading chute are separated, and the air supply duct does not affect the movement of the unloading chute.

[0160] Blower 2012 blows air into the air duct, which guides the air to the bottom of the unloading trough, thus cooling the bottom of the trough. The dried tea leaves discharged from the drying cylinder fall into the unloading trough, where heat exchange occurs, indirectly cooling the tea leaves.

[0161] One installation method of the second elastic plate: one end of the second elastic plate is installed on the base frame 2017 through a second angle bracket 214, and the other end of the second elastic plate is installed on the bottom of the unloading chute 20111 through another second angle bracket. The second angle bracket is fixedly connected to the unloading chute and the base frame by a third bolt 2015.

[0162] like Figure 14 As shown, the second elastic plate 2013 is inclined in the opposite direction of the unloading chute.

[0163] In some embodiments, a structure for the second propulsion mechanism is provided. For example... Figure 14 As shown, the second propulsion mechanism includes a second worktable 2021, a second drive shaft 2020, a second rotating shaft 2030, a second push rod 2024, a third driven wheel 2019, a second drive motor 2027, and a second driving wheel 2026. One end of the second drive shaft 2020 is mounted on the second worktable 2021 via a fourth bearing seat 2023, and the other end is mounted on the second worktable 2021 via a third bearing seat 2022; both ends of the second rotating shaft 2030 are mounted on the bottom of the unloading chute 20111 via fifth bearing seats 2029; one end of the second push rod 2024 is connected to the second rotating shaft 2030, and the other end extends downwards and is connected to the second drive shaft 2020; the third driven wheel 2019 is drivenly connected to the second drive shaft 2020; the second drive motor 2027 is provided with a second output shaft; the second driving wheel 2026 is keyed to the second output shaft and is drivenly connected to the third driven wheel 2019.

[0164] One transmission connection structure between the third driven wheel 2019 and the second drive shaft 2020 is as follows: the third driven wheel 2019 and the second drive shaft 2020 are connected by a key.

[0165] A third bearing sleeve 2031 is also installed on the second rotating shaft 2030. The third bearing sleeve 2031 is fixed to the second rotating shaft 2030 and is used to connect with the second push rod 2024.

[0166] A transmission structure for the third driven wheel 2019 and the second driving wheel 2026: The third driven wheel 2019 and the second driving wheel 2026 are connected by a second transmission component 2025.

[0167] Understandably, the second transmission component 2025 is a transmission belt, while the third driven pulley 2019 and the second driving pulley 2026 are both pulleys. Alternatively, the second transmission component 2025 is a transmission chain, while the third driven pulley 2019 and the second driving pulley 2026 are both sprockets.

[0168] One structure of the second drive motor 2027 is a limited-angle motor. It is understood that the reciprocating rotation angle range of the second drive motor can be set according to operational needs. When the second drive motor reciprocates within the set angle range, it drives the third driven wheel 2019 to reciprocate. The third driven wheel 2019 drives the second drive shaft 2020 to reciprocate. The second drive shaft 2020 drives the second push rod 2024 to reciprocate. The second push rod 2024 pushes and pulls the unloading chute 20111 via the second rotating shaft 2020. Supported by multiple second elastic plates, the unloading chute 20111 reciprocates upwards relative to the unloading direction, causing the tea leaves in the unloading chute to be thrown towards the unloading direction. Thus, the tea leaves gradually move towards the second unloading chute and are unloaded from the second unloading chute.

[0169] In some alternative embodiments, one structure of the feeding mechanism is provided. For example... Figure 15 As shown, the feeding mechanism 200 includes a feeding frame 2003, a feeding trough 2001, and a first propulsion mechanism. The top of the feeding trough 2001 is open, one end is closed, and the other end is open and connected to the first unloading chute 2002. The feeding trough 2001 is connected by at least four first elastic plates 20015, which are installed at an angle. The first propulsion mechanism is installed on the feeding frame 2003 and is drivenly connected to the feeding trough 2001.

[0170] The top of the feed trough 2001 is open to facilitate the feeding of tea leaves. One end of the feed trough is closed to prevent the tea leaves from falling out.

[0171] One installation method of the first elastic plate: the two ends of the first elastic plate are respectively installed on the feed trough 2001 and the feed rack 2003 by the first corner bracket 20013. The first corner bracket 20013 is fixedly connected to the feed trough 2001 and the feed rack 2003 by the second bolt 20014.

[0172] like Figure 15 As shown, the first elastic plate is inclined in the opposite direction to the feeding direction. When the feeding trough is subjected to a force by the first propulsion mechanism, the multiple first elastic plates support the feeding trough and push it upwards relative to the feeding direction, causing the tea leaves in the feeding trough to be thrown in the opposite direction of feeding. This facilitates the loosening of the tea leaves during movement.

[0173] It should be noted that the first elastic plate is installed at an angle. When the first propulsion mechanism pushes the feed trough, the first elastic plate swings in a circular motion. The first elastic plate swings in the direction of feeding. Under the constraint of multiple first elastic plates, the feed trough moves upward. The tea leaves in the feed trough follow the upward movement. The feed trough moves upward repeatedly, causing the tea leaves to move continuously in the direction of feeding until they fall from the first discharge chute into the feed inlet 226.

[0174] like Figure 15 As shown, one structure of the first propulsion mechanism is as follows: the first propulsion mechanism includes a first worktable 20010, a first drive shaft 20018, a first driven wheel 20012, a second drive wheel 2008, a first electric motor 2007, a first rotating shaft 2005, and a first push rod 20019. One end of the first drive shaft 20018 is mounted on the first worktable 20010 via the first bearing seat 20011, and the other end is mounted on the first worktable 20010 via the second bearing seat 20017; the first driven wheel 20012 is mounted on the first drive shaft 20018; the first motor 2007 is provided with a first output shaft; the second drive wheel 2008 is mounted on the first output shaft and is connected to the first driven wheel 20012 in a transmission manner; both ends of the first rotating shaft 2005 are mounted on the bottom of the feed trough 2001 via the first shaft seat 2006; one end of the first push rod 20019 is connected to the first drive shaft 20018, and the other end extends upward at an incline and is connected to the first rotating shaft 2005.

[0175] One structure of the first drive motor is a finite-angle motor. Understandably, the reciprocating rotation angle range of the first drive motor can be set according to operational requirements. When the first drive motor reciprocates within the set angle range, it drives the first driven wheel 20012 to reciprocate.

[0176] A second bearing sleeve 20016 is mounted on the first drive shaft 20018. The second bearing sleeve 20016 is used to connect with the first push rod 20019.

[0177] A transmission connection structure between the first driven pulley 20012 and the second driving pulley 2008, wherein the first driven pulley 20012 and the second driving pulley 2008 are connected by a second transmission member 2009. When the second transmission member 2009 is a transmission belt, both the first driven pulley 20012 and the second driving pulley 2008 are pulleys. When the second transmission member 2009 is a transmission chain, both the first driven pulley 20012 and the second driving pulley 2008 are sprockets.

[0178] In some alternative embodiments, a suspension structure for the windshield and exhaust cap is provided, with the addition of a bracket 214 and a suspension rod 227. For example... Figure 9 , 11As shown, one end of the bracket 214 is connected to the hot air duct 215, and the other end is bent and extended to connect to the drying housing 21. Figure 9 As shown, one end of the suspension rod 227 is connected to the exhaust cap 25, and the other end is connected to the drying housing 21.

[0179] The hot air duct 215 is suspended from the drying shell via a bracket 214, while the baffle plate is connected to the hot air duct, and the hot air duct supports the baffle plate suspended inside the drying drum. It is understood that neither the hot air duct nor the baffle plate affects the rotation of the drying drum.

[0180] The exhaust cap 25 is fitted onto the guide cylinder 24 with the support of the suspension rod 227. Understandably, the exhaust cap does not affect the rotation of the guide cylinder along with the drying cylinder.

[0181] like Figure 9 , 10 As shown, a screen 252 is installed at the exhaust port 251 of the exhaust cap 25. The screen 252 prevents debris from falling into the exhaust cap.

[0182] It should be noted that the hot air inside the drying drum enters the exhaust cap through the guide tube and then exits through the exhaust port on the exhaust cap. Understandably, the exhaust cap separates the tea leaves from the hot air. The tea leaves are discharged from the discharge port at the bottom of the exhaust cap, while the hot air is discharged from the exhaust port.

[0183] According to the above embodiments, the working method of the dryer of this utility model is as follows:

[0184] Hot air is introduced into the drying cylinder 22 through the hot air pipe 215 to preheat the drying cylinder. The preheating time can be 10 to 30 minutes.

[0185] The tea leaves to be dried are placed into the feeding mechanism 200, which discharges the tea leaves from the inlet 226 into the drying cylinder 22. Multiple de-clumping guide strips inside the drying cylinder 22 extend in a spiral distribution. As the multiple de-clumping guide strips push the tea leaves into the guide cylinder 24, the tea leaves move continuously under the action of the multiple de-clumping guide strips, and can also carry the tea leaves upward. After moving to a certain height, the tea leaves fall down under their own weight. They can also collide with the tea leaves inside the drying cylinder during rotation, thereby breaking up clumps and lumps, making the tea leaves fully loose, improving the drying efficiency and the quality of the dried tea. The tea powder generated during the drying process is filtered through the screen cylinder 222 and falls into the collection basket below the drying cylinder, realizing the recycling of tea powder.

[0186] Multiple de-clumping guide bars push the tea leaves inside the drying cylinder to the guide cylinder 24. The guide cylinder 24 then feeds the tea leaves into the exhaust cap 25. The tea leaves fall through the discharge port of the exhaust cap 25 to the unloading mechanism 201, while hot air is discharged from the exhaust port 251 at the top of the exhaust cap 25. The unloading mechanism 201 then pushes the tea leaves to the next processing step.

[0187] In some alternative embodiments, one structure of the pulverizing device is provided. For example... Figures 17 to 25 As shown, the crushing device includes a multi-stage screen 38, a second sealing plate 332, a guide plate 317, a partition plate 323, a rotating drum 32, a screen spacing adjustment component 330, a cover 31, a locking mechanism 329, a drive mechanism, and a hopper 35. The multi-stage screen 38 includes a fixed-edge plate 385, a movable-edge plate 384, and a multi-stage screen. The multi-stage screen has a downwardly concave arc-shaped mesh structure, with one side connected to the fixed-edge plate 385 and the other side connected to the movable-edge plate 384. The fixed-edge plate 385 is fixedly installed on one side of the second support frame 316, and the movable-edge plate 384 is movably overlapped on the other side of the second support frame 316. A second sealing plate 332 is attached to each end of the multi-stage screen, and the second sealing plate 332 is installed on the second support frame 316. The guide plate 317 is installed at the bottom of the multi-stage screen. A partition 323 is provided between adjacent screening screens on the outer side of the multi-stage screen, and the partition 323 extends and connects to the guide plate 317. Rotating shafts 310 are provided at both ends of the rotating drum 32, and are partially inserted into the multi-stage screen. Each rotating shaft 310 is mounted to the second support frame 316 via a rotating drum adjusting member 328. Multiple grades of crushing components are installed on the longitudinal circumferential surface of the rotating drum 32, corresponding to the multi-stage screen. One end of the screen adjusting member 330 is mounted to the second support frame 316, and the other end is connected to the moving side plate 384. One end of the cover 31 is hinged to the second support frame 316, and the other end is provided with a mounting plate 333. When the cover 31 is movably fastened to the rotating drum 32, the mounting plate 333 overlaps the moving side plate 384. One end of the locking mechanism 329 is hinged to the second support frame 316, and the other end movably locks the mounting plate 333 and the moving side plate 384 to the second support frame 316. The drive mechanism is connected to a rotating shaft 310; the hopper 35 is installed at one end of the cover 31; wherein, the second sealing plate 332, which is away from the hopper 35, has a zero-level outlet 334.

[0188] To facilitate the centralized conveying of tea leaves discharged from the zero-stage outlet 334, a zero-stage unloading component 335 is added. For example... Figure 19 As shown, one end of the zero-stage unloading component 335 is installed at the zero-stage outlet 334, and the other end extends downward at an angle relative to the second support frame 316. Tea leaves fall from the multi-stage screen 38 through the discharge port into the zero-stage unloading component 335, which guides the tea leaves outward.

[0189] One structure of the drive mechanism includes a drive motor 315, a drive shaft 314, a driven wheel 312 and a drive wheel 313. The drive motor 315 is provided with a drive shaft 314. The drive wheel 313 is keyed to the drive shaft 314. The driven wheel 312 is keyed to a rotating shaft 310. The drive wheel 313 and the driven wheel 312 are connected by a transmission.

[0190] One transmission connection method between the driving pulley 313 and the driven pulley 312: The driving pulley 313 and the driven pulley 312 are connected by a transmission component 311. The transmission component 311 can be a transmission belt or a transmission chain. When the transmission component is a transmission belt, both the driving pulley 313 and the driven pulley 312 are pulleys. When the transmission component 311 is a transmission chain, both the driving pulley 313 and the driven pulley 312 are sprockets.

[0191] It should be noted that U-shaped grooves are provided on both ends of the cover 31 corresponding to the rotating shaft 310, and the two ends of the cover are fitted onto the rotating shaft through the U-shaped grooves. The overlapping plate 333 on the cover overlaps with the moving edge plate 384.

[0192] Understandably, the inner side of the hopper 35 is connected to the inner side of the cover 31. The tea leaves in the hopper can fall into the space between the rotating drum and the cover.

[0193] like Figure 17 As shown, to facilitate control of the tea leaves falling from the hopper 35 into the space between the rotating drum and the lid, a feed pipe 37 and a feed control valve 36 are added. One end of the feed pipe 37 is connected to the inner side of the lid 31, and the other end is connected to the hopper 35 via the feed control valve 36. When the feed control valve 36 is open, the tea leaves in the hopper fall into the space between the rotating drum and the lid. When the feed control valve 36 is closed, the tea leaves in the hopper stop falling into the space between the rotating drum and the lid. It can be understood that the amount of tea leaves falling can be adjusted by the degree of opening of the feed control valve 36.

[0194] One structure of the feed control valve 36 includes a first valve plate, a second valve plate, a gasket plate, and a slide plate. The first and second valve plates have corresponding through holes. The first valve plate is connected to the discharge port at the bottom of the hopper, and the second valve plate is connected to the feed pipe. Two gasket plates are installed parallel to each other between the first and second valve plates, forming a through groove between the two gasket plates and the first and second valve plates. The slide plate is movably inserted into the through groove. When the slide plate is inserted into the through groove to block the discharge port, the tea leaves in the hopper stop falling. Pulling out the slide plate connects the discharge port to the feed pipe, and the tea leaves fall from the discharge hopper into the feed pipe.

[0195] It should be noted that the gasket is placed along the edges of the first valve plate and the second valve plate. The gasket, the first valve plate, and the second valve plate can be fixedly connected by multiple bolts.

[0196] Another configuration for the feed control valve 36 is a gate valve. Furthermore, the feed control valve can be an electrically operated gate valve.

[0197] While supporting the installation of the rotating drum, the rotary drum adjusting component 328 can also adjust the interval between the rotating drum and the multi-stage screens, thereby adjusting the interval between the multiple grades of crushing parts and the multi-stage screens.

[0198] The screen spacing adjustment component 330 is used to adjust the interval between the multi-stage screen and the rotating drum, thereby adjusting the spacing between the multi-stage screen and the multiple grades of grinding components, which can grind tea into broken tea and powdered tea with different particle sizes. For example... Figure 1-3 As shown, the screen spacing adjustment device can be installed in quantities of 1, 2, or 3. Of course, an appropriate number of screen spacing adjustment devices can also be installed according to the length of the multi-stage screen.

[0199] The locking mechanism 329 is used to lock and fix the overlapping plate 333 and the moving side plate to the second support frame 316. When the locking mechanism is released, the overlapping plate can be separated from the moving side plate, and the cover 31 can be opened. When the locking mechanism is in the locked state, it locks and fixes the overlapping plate 333 and the moving side plate 384 to the second support frame 316. It is understood that the number of locking mechanisms can be 2, 3, 4, 5, or 6, etc. Of course, an appropriate number of locking mechanisms can be installed according to the length of the cover.

[0200] One structure for graded crushing components is given. For example... Figure 17 , 18 As shown, the graded crushing components include a first-stage crushing component 33, a second-stage crushing component 34, and a third-stage crushing component 331. The third-stage crushing component 331, the second-stage crushing component 34, and the first-stage crushing component 33 are distributed sequentially along the longitudinal direction on the rotating drum 32. The third-stage crushing component 331 corresponds to the hopper 35.

[0201] The multiple levels of crushing elements on the rotating drum 32 correspond to a multi-stage screen. The multi-stage screen may include a first-stage screen 383, a second-stage screen 382, ​​and a third-stage screen 381. The third-stage screen 381 corresponds to the third-stage crushing element 331. The second-stage screen 382 corresponds to the second-stage crushing element 34. The first-stage screen 383 corresponds to the third-stage crushing element 33.

[0202] It should be noted that the third-stage pulverizer is used as the starting point for pulverization. The third-stage sieve can filter out powder and fine tea fragments mixed in with the tea leaves. Understandably, the highest pulverization level corresponds to the hopper and is used as the starting point for pulverization.

[0203] like Figure 17-19 As shown, the partition 323 separates adjacent screens to prevent tea leaves, broken tea leaves, and powder from adjacent screens from mixing with each other.

[0204] A third-stage outlet 318 is formed between the third-stage screen 381, the partition 323 and the guide plate 317. The third-stage outlet 318 is equipped with a third-stage unloading component 319, which collects the material discharged from the third-stage outlet.

[0205] A second-stage outlet 321 is formed between the second-stage screen 382, ​​the partition 323 and the guide plate 317. The second-stage outlet 321 is equipped with a second-stage unloading component 322, which collects the material discharged from the second-stage outlet.

[0206] The first-stage outlet 324 is formed between the first-stage screen 383, the partition 323 and the guide plate 317. The first-stage outlet 324 is equipped with a first-stage unloading component 325, which collects the material discharged from the first-stage outlet.

[0207] The second sealing plate 332, which is far away from the hopper 35, has a zero-level outlet 334, and the zero-level outlet 334 is equipped with a zero-level unloading component 335.

[0208] It should be noted that the particle size of the tea leaves screened at the third, second, first, and zeroth stages increases sequentially. It is understandable that this is not limited to four stages; multiple stages can be set according to production needs.

[0209] The mesh size of the third-stage sieve can be 80 to 120 mesh. Selectable mesh sizes include 80, 90, 100, 110, or 120 mesh.

[0210] The mesh size of the second-stage sieve can be 30 to 50 mesh. Selectable mesh sizes include 30, 40, or 50 mesh.

[0211] The mesh size of the first-stage sieve can be 15 to 25 mesh. Selectable mesh sizes include 15, 20, or 25 mesh.

[0212] It is understandable that the third-stage, second-stage, and first-stage screens are not limited to the mesh sizes listed above; appropriate mesh sizes can be selected according to production needs.

[0213] like Figure 17 , 18 As shown, this is one structure of the third-stage crusher. The third-stage crusher 331 is spirally mounted on the rotating drum 32. The spiral structure of the third-stage crusher can both crush tea leaves and propel the material on the multi-stage screen.

[0214] It should be noted that the third-stage crushing component can be a ribbon-type spiral blade. The thickness of the spiral blade can be 10–20 mm, with selectable thicknesses including 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm. The width of the spiral blade can also be 10–20 mm, with selectable widths including 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm.

[0215] like Figure 17 ,18 As shown, the second-stage crushing component 34 includes multiple second-stage crushing rods, which are circumferentially distributed at intervals on the circumferential surface of the rotating drum 32. Each second-stage crushing rod intersects the axis of the rotating drum 32, and the included angle formed by the intersection is α, where 0 < α ≤ 30°. The included angle α can be selected from 5°, 10°, 15°, 20°, 25°, or 30°, etc.

[0216] When multiple secondary crushing rods are installed along the circumference of the rotating drum, they form a spiral-like structure. While crushing the tea leaves, the multiple secondary crushing rods push the material on the multi-stage screen to move.

[0217] like Figure 17 , 18 As shown, the first-stage crushing component 33 includes multiple first-stage crushing rods, which are circumferentially distributed at intervals on the circumferential surface of the rotating drum 32. Each first-stage crushing rod intersects the axis of the rotating drum 32, and the included angle formed by the intersection is β, where 5°≤β≤50°. The included angle β can be selected from 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, or 50°, etc.

[0218] The first-stage and second-stage crushing rods are intersecting on the rotating drum, and are also staggered.

[0219] The height of the first-stage crushing rod and the second-stage crushing rod can be 10-20mm, and the selectable heights can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or 20mm, etc.

[0220] The width of the first-stage crusher and the second-stage crusher can be 10-20mm. Optional widths include 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm.

[0221] It should be noted that the rotating drum, extending from the hopper towards the zero-stage discharge component, features a third-stage crushing component arranged in a spiral pattern, a second-stage crushing component arranged in a long rod pattern, and a first-stage crushing component arranged in a short rod pattern. The spiral pattern propels the tea leaves falling from the hopper evenly, preventing local overload, clogging, and improving crushing efficiency. The long-rod second-stage crushing component and the short-rod third-stage crushing component further disperse the tea leaves, increasing contact between the tea leaves and the graded crushing components and multi-stage screens, resulting in more uniform crushing and faster crushing speed. Understandably, the graded crushing components of this invention improve crushing efficiency and uniformity, reduce clogging and energy consumption, extend equipment life, and improve product quality.

[0222] like Figure 17As shown, the discharged broken tea leaves and tea powder can be conveyed by conveyor 320. Each of the first-stage outlet 324, the second-stage outlet 321, and the third-stage outlet 318 can be equipped with a conveyor 320. Alternatively, the first-stage outlet 324, the second-stage outlet 321, and the third-stage outlet 318 can share a single conveyor. That is, the conveyor belt is aligned with the first-stage outlet 324, the second-stage outlet 321, and the third-stage outlet 318, and the tea materials discharged from the first-stage outlet 324, the second-stage outlet 321, and the third-stage outlet 318 are conveyed in a straight line on the conveyor belt, spaced apart from each other, without interference.

[0223] In some alternative embodiments, one structure for the rotary drum adjusting element is provided. For example... Figure 20 As shown, the rotary drum adjusting component 328 includes a support plate 3283, a first limiting plate 3285, a second bolt 3282, a second limiting plate 3287, and a first bolt 3286. One end of the support plate 3283 is hinged to the second support frame 316, and the other end extends downward at an incline; the first limiting plate 3285 is connected to the other end of the support plate 3283; the second bolt 3282 is threaded through the first limiting plate 3285; the second limiting plate 3287 is installed on the first limiting plate 3285 and extends downward, and the second limiting plate 3287 has an arc-shaped adjusting groove 32871; the first bolt 3286 passes through the adjusting groove 32871; the bearing seat 3284 is installed on the support plate 3283 and is used to support and install the rotating shaft 310.

[0224] like Figure 18-20 As shown, the support plate 3283 is installed at an angle on the second support frame 316.

[0225] The second bolt 3282 is threaded through the first limiting plate 3285 and threadedly connected to the second support frame 316. The second limiting plate 3285 is installed on the side of the first limiting plate, and the first bolt 3286 is threaded through the adjusting groove 32871 and threadedly connected to the second support frame 316.

[0226] The first limiting plate 3285, the second bolt 3282, the second limiting plate 3287, and the first bolt 3286 work together to fix the support plate 3283 to the second support frame 316.

[0227] The working principle of the adjustable drum: Loosen the second bolt 3282 from the second support frame 316, then loosen the first bolt 3286. At this point, the first limiting plate 3285, the second limiting plate 3287, and the support plate 3283 can all move. This allows the adjustable drum 32 to move relative to the multi-stage screen, thus adjusting the drum. After adjusting to the desired interval, tighten the first bolt 3286 and the second bolt 3282 to secure it.

[0228] It should be noted that when adjusting the distance between the rotating drum and the multi-stage screen, the distance between the rotating drum 32 and the multi-stage screen is adjusted. When the support plate 3283 is swung downwards, the distance between the rotating drum 32 and the multi-stage screen decreases. When the support plate 3283 is swung upwards, the distance between the rotating drum 32 and the multi-stage screen increases. Understandably, when the distance between the rotating drum and the multi-stage screen changes, the distance between the multiple grade grinding components and the multi-stage screen also changes. A smaller distance between the grade grinding components and the multi-stage screen results in smaller tea powder or broken tea particles. A larger distance between the grade grinding components and the multi-stage screen results in larger tea powder or broken tea particles.

[0229] like Figure 20 As shown, a hinge connection structure for the support plate 3283 is provided, which includes a bushing 3281, a support base 39, and a support shaft 391. The support plate 3283 is provided with a bushing 3281, which has a shaft hole 32811. The support base 39 is provided with a support shaft 391 and is installed on the second support frame 316. The support shaft 391 passes through the shaft hole 32811.

[0230] The support shaft 391 can rotate relative to the support base 39, and the support plate 3283 can swing relative to the support base 39 via the support shaft 391.

[0231] The adjusting groove 32871 has an arc-shaped structure, which corresponds to the arc-shaped trajectory of the support plate's swing. Therefore, when the support plate needs to swing, the first bolt 3286 and the second limiting plate 3287 do not obstruct the swing of the support plate.

[0232] In some alternative embodiments, one structure for the screen adjustment element is provided. For example... Figure 22 As shown, the screen adjustment component 330 includes a base plate 3305, a threaded cylinder 3303, a retaining ring 3304, a limiting boss 3306, and a push-pull screw 3302. One end of the base plate 3305 is mounted on the second support frame 316, and the other end extends outward relative to the second support frame 316 and connects to the vertical plate 3307. The vertical plate 3307 has a U-shaped groove 33071. The threaded cylinder 3303 passes through the U-shaped groove 33071. The retaining ring 3304 is mounted on one end of the threaded cylinder 3303. The limiting boss 3306 is mounted on the other end of the threaded cylinder 3303. The push-pull screw 3302 passes through the limiting boss 3306, the threaded cylinder 3303, and the retaining ring 3304 in sequence, and is threadedly connected to the threaded cylinder 3303.

[0233] The threaded cylinder 3303 is placed in the U-shaped groove 33071, with a limiting boss 3306 and a retaining ring 3304 at each end. The limiting boss 3306 and the retaining ring 3304 confine the threaded cylinder 3303 to the vertical surface of the U-shaped groove 33071. That is, the threaded cylinder 3303 is clamped to the vertical plate 3307 in its longitudinal direction by the limiting boss 3306 and the retaining ring 3304.

[0234] To facilitate the turning of the threaded cylinder 3303, a handle 3301 is added, which is connected to the limiting boss 3306. Turning the handle 3301 causes the limiting boss 3306 to rotate, which in turn causes the threaded cylinder 3303 and the retaining ring 3304 to rotate. The limiting boss 3306 and the retaining ring 3304 prevent the threaded cylinder from moving relative to the vertical plate. The threaded cylinder 3303 is threadedly connected to the push-pull screw 3302, which moves relative to the threaded cylinder 3303. The push-pull screw 3302 is connected to the moving side plate 384, which in turn moves the moving side plate 384. The moving side plate 384 then moves the multi-stage screen, thus adjusting the distance between the multi-stage screen and the rotating drum. This allows for adjustment of the distance between the graded pulverizing parts on the rotating drum and the multi-stage screen, thereby changing the particle size of the tea powder.

[0235] In some alternative embodiments, one structure of the locking mechanism is provided. For example... Figure 21 As shown, the locking mechanism 329 includes a second swing rod 3295, a support sleeve 3297, and a support screw 3291. Both ends of the second swing rod 3295 are bent, with a threaded sleeve 3294 installed at one end and a rotating shaft 3296 installed at the other end; the support sleeve 3297 is sleeved on the rotating shaft 3296 and installed on the second support frame 316; the support screw 3291 is bolted through the threaded sleeve 3294.

[0236] The two ends of the second swing rod 3295 are bent to facilitate the swing rod to swing and engage between the overlapping plate and the moving edge plate.

[0237] The pivot 3296 can rotate relative to the support sleeve 3297, and the second swing rod 3295 swings relative to the support sleeve 3297 via the pivot 3296.

[0238] The support screw 3291 is threadedly connected to the threaded sleeve 3294. Turning the support screw clockwise screws it into the threaded sleeve. Turning the support screw counterclockwise screws it out of the threaded sleeve.

[0239] During operation, the cover 31 is fastened onto the rotating cylinder 32, and the overlapping plate 333 overlaps with the moving side plate 384. The second swing rod 3295 is driven to swing and engage with the overlapping plate and the moving side plate. The threaded sleeve is perpendicular to the overlapping plate 333. When the support screw 3291 is turned, the support screw 3291 screws into the threaded sleeve 3294 and moves towards the overlapping plate 333. When the support screw is turned until it is tightened against the overlapping plate, the support screw tightens and fixes the overlapping plate and the moving side plate to the second support frame 316. The locking mechanism fixes the cover to the support frame.

[0240] When the cover needs to be opened, loosen the support screw 3295. The support screw 3295 will disengage from the overlapping plate 333. Push the second swing rod 3295, and the support screw and threaded sleeve will swing away from the overlapping plate, releasing the locking state of the locking mechanism, and the cover can be opened.

[0241] A drive structure for the support screw is provided, which adds a lever 3292 and an anti-detachment plate 3293. The lever 3292 passes through the end of the support screw 3291 away from the threaded sleeve 3294, and anti-detachment plates 3293 are installed at both ends.

[0242] Both ends of the lever are equipped with anti-detachment plates to prevent the lever from separating from the support screw.

[0243] One possible structure for the anti-detachment plate is a circular plate. Understandably, the diameter of the circular plate is larger than the diameter of the through hole on the support screw used to pass the lever. The circular plate prevents the lever from detaching from the support screw.

[0244] like Figure 17-19 As shown, a longitudinal support member 326 and a vertical support 327 are added to the second support frame 316. Both ends of the longitudinal support member 326 are mounted to the second support frame 316 via the vertical support 327. A gap is formed between the bottom of the longitudinal support member 326 and the second support frame 316, providing space for the second swing rod 3295 to swing downwards. A support sleeve 3297 is mounted on the longitudinal support member 326.

[0245] According to the above embodiments, the working method of the pulverizing device of this utility model is as follows:

[0246] The tea leaves to be crushed are placed into the hopper 35. The tea leaves enter the space formed by the cover 31, the rotating drum 32 and the multi-stage screen through the hopper 35. The third-stage crushing component 331 evenly distributes the falling tea leaves, pushes them forward and crushes them. The third-stage crushing component squeezes the tea leaves onto the third-stage screen 381 to achieve the grinding and crushing of the tea leaves. The crushed powder is filtered through the third-stage screen and falls into the guide plate 317. It then falls from the third-stage outlet 318 into the third-stage discharge component 319. The third-stage discharge component 319 guides the tea powder outward and discharges it.

[0247] The third-stage crusher 331 pushes the tea material to the second-stage crusher 34. The second-stage crusher further disperses and distributes the pushed tea material and pushes it back to the first-stage crusher. The second-stage crusher 34 squeezes the tea material onto the second-stage screen 382 to grind and cut it into the first type of broken tea. The first type of broken tea is filtered through the second-stage screen 382 and falls into the guide plate 317. The guide plate 317 guides the first type of broken tea to the second-stage outlet 321. The second-stage outlet 321 unloads the first type of broken tea into the second-stage unloading member 322. The second unloading member 322 discharges the first type of broken tea outward.

[0248] The second-stage crusher 34 pushes the tea material to the first-stage crusher 33. The first-stage crusher 33 further disperses and distributes the tea material and pushes it towards the zero-stage outlet 334. The first-stage crusher 33 squeezes the tea material against the first-stage screen 383 to grind and cut it into a second type of broken tea. The first-stage screen 383 filters out the second type of broken tea, which falls into the guide plate. The guide plate guides the second type of broken tea to the first-stage outlet 324. The first-stage outlet 324 introduces the second type of broken tea into the first unloading component 325, which discharges the second type of broken tea outward.

[0249] The first-stage crusher 33 pushes the remaining tea material into the zero-stage outlet 334 opened on the second sealing plate 332. The tea material falls into the zero-stage unloading component 335 through the zero-stage outlet 334. The zero-stage unloading component 335 discharges the remaining tea material, which is the tea stem, outward.

[0250] The distance between the rotating drum and the multi-stage screen can be adjusted using the rotating drum adjustment component and the screen adjustment component, thereby producing broken tea and tea powder of corresponding particle sizes. When it is necessary to adjust the multi-stage screen using the screen adjustment component, the locking mechanism on the cover can be released first, and the moving side plate 384 can be released from its pressing state. This allows the screen adjustment component to push and pull the moving side plate to adjust the distance between the multi-stage screen and the rotating drum. Then, the locking mechanism can be locked onto the cover.

[0251] In some alternative embodiments, one structure of the blanching mechanism is provided. For example... Figure 23-25 As shown, the fixing mechanism includes a first tea conveyor 41, a fixing shell 418, a fixing dehumidification cap 424, a fixing drum 441, a fixing hot air pipe 46, a first tea feed hopper 417, a fixing unloading chute 423, a first support net 422, a first warm air blower 421, and a first bracket 420. The fixing drum 441 is rotatably mounted on the fixing shell 418, which is mounted on the fixing support frame 419. A first feeding chamber 417 is mounted at one end of the fixing shell 418, and a fixing dehumidification cap 424 is mounted at the other end. A dehumidification pipe 434 is mounted on the top of the fixing dehumidification cap 424, and a fixing discharge port is located at the bottom. One end of a first support frame 420 is positioned below the fixing discharge port, and a fixing discharge trough 423 is mounted on top of the first support frame 420. A first support net 422 is located at the bottom of the fixing discharge trough 423, and multiple first warm air blowers 421 are spaced apart at the bottom of the first support net 422. These multiple first warm air blowers 421 are mounted on the first support frame 420. One end of the fixing drum 441 is connected to the first tea feeding chamber 417, and the other end is inserted into the fixing dehumidification cap 424. A fixing hot air pipe 46 passes through the first tea feeding chamber 417 to supply hot air to the fixing drum 441.

[0252] The first tea conveyor 41 can be a commonly used belt conveyor. Multiple first baffles 44 are installed parallel to each other at intervals on the first conveyor belt 42 of the first tea conveyor 41. The top of each first baffle 44 is provided with serrated first claws 441. The number of first baffles 44 installed can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20.

[0253] It should be noted that when the first tea conveyor is conveying tea at an angle, the tea leaves will accumulate on the first baffle 44. The first toothed claw 441 will grab the tea leaves that fall onto the edge of the first baffle, thereby preventing the tea leaves from slipping and facilitating the first baffle to push the tea leaves upward smoothly.

[0254] To prevent tea leaves from falling off the sides of the first conveyor belt, side baffles 43 are installed on both sides of the first tea conveyor 41 along the conveying direction. The two side baffles 43 are connected by reinforcing rods 45. The two side baffles 43 can restrict the conveyed tea leaves from moving along with the first conveyor belt 42. The number of reinforcing rods 45 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, etc.

[0255] To support the first tea conveyor, a first support frame 416 is added, which supports the installation of the first tea conveyor.

[0256] To facilitate heat dissipation from the blanching drum, multiple heat dissipation zones 435 are arranged in parallel at intervals on one end of the blanching shell 418 near the exhaust cap 424, and multiple heat dissipation holes 436 are distributed on the heat dissipation zones 435. These multiple heat dissipation holes allow air to enter the blanching shell, thus facilitating heat exchange with the blanching drum. Therefore, after blanching is completed, the blanching hot air pipe 46 stops supplying hot air to the blanching drum, and the blanching drum comes into contact with the outside air through the multiple heat dissipation zones on the blanching shell, which helps to cool the drum down.

[0257] To uniformly break up tea leaves conveyed on the first conveyor belt, a leaf-breaking mechanism is added. This mechanism includes a first leaf-breaking drum 48, leaf-breaking rods 49, a leaf-breaking drive motor 410, a leaf-breaking drive wheel 411, a leaf-breaking drive shaft 412, a leaf-breaking transmission component 413, a leaf-breaking driven wheel 414, and a leaf-breaking shaft 415. Both ends of the first leaf-breaking drum 48 are rotatably connected to corresponding side baffles 43, and multiple leaf-breaking rods 49 are spaced apart along the length of the drum. The leaf-breaking drive motor 410 is mounted on the side baffles 43 and has a leaf-breaking drive shaft 412. The leaf-breaking drive wheel 411 is mounted on the drive shaft 412. One end of the leaf-breaking shaft 415 has a leaf-breaking driven wheel 414, and the other end is connected to the first leaf-breaking drum 48. The leaf-breaking drive wheel 411 and the leaf-breaking driven wheel 414 are connected via the leaf-breaking transmission component 413.

[0258] like Figure 23 As shown, a first hot air valve 47 is installed on the hot air pipe 46 for easy control. The first hot air valve 47 can be used to control the supply of hot air from the hot air pipe 46 to the hot air drum and to disconnect the hot air.

[0259] like Figure 24 As shown, the blanching moisture-removing cap 424 is installed on the blanching shell 418 via a support rod 439. The blanching moisture-removing cap 424 is fitted onto the blanching drum and does not affect the rotation of the blanching drum.

[0260] like Figure 23 , 24 As shown, the dehumidification pipe 434 on the blanching dehumidification cap 424 discharges moisture outward by pulling it out. The blanching dehumidification cap 424 adopts the chimney principle, which draws the water vapor collected in the blanching dehumidification cap through the ventilation pipe above to achieve the dehumidification function.

[0261] One rotating structure of the blanching drum includes a first auxiliary wheel 452, a second auxiliary wheel 443, a blanching driven wheel 451, a first rolling wheel 442, a blanching drive motor 445, a blanching drive wheel 446, a blanching transmission component 447, a blanching driven wheel 448, a blanching drive shaft 449, a first drive roller 450, and a blanching driven wheel 451. The blanching driven wheel 451 is mounted on one end of the blanching drum 441 near the blanching dehumidification cap 424, and the first rolling wheel 442 is mounted on the other end. The first auxiliary wheel 452 is mounted on one side of the bottom of the first rolling wheel 442, and the first drive roller 450 is mounted on the other side. The first blanching driven wheel 448 is mounted on one end of the blanching drive shaft 449, and the other end is connected to the first rolling wheel 450 for transmission. The output shaft of the blanching drive motor 445 is equipped with a blanching drive wheel 446, and the blanching drive wheel 446 and the first blanching driven wheel 448 are connected by a blanching transmission component 447.

[0262] The first drive roller 450 and the first auxiliary wheel 452 are each mounted on the blanching support frame 419 via a first support 444. The first drive roller 450 and the first auxiliary wheel 452 are rotatably mounted on the first support 444.

[0263] Second auxiliary wheels 443 are installed on both sides of the bottom of the second driven wheel 451, and the two second auxiliary wheels 443 support the rotation of the second driven wheel 451.

[0264] like Figure 24 As shown, an extension cylinder 440 is installed on the blanching drum, and the extension cylinder 440 is inserted into the blanching dehumidification cap 424.

[0265] The working principle of the blanching drum: The blanching drive motor 445 drives the blanching drive wheel 446 to rotate. The blanching drive wheel 446 drives the first blanching driven wheel 448 to rotate through the blanching transmission component 447. The first blanching driven wheel 448 drives the blanching drive shaft 449 to rotate. The blanching drive shaft 449 drives the first drive roller 450 to rotate. The first drive roller 450 drives the first rolling wheel 442 to rotate. The first rolling wheel 442 drives the blanching drum 441 to rotate, while the two second auxiliary wheels 443 support the rotation of the second blanching driven wheel 451.

[0266] To allow for inspection of the blanching process inside the blanching drum, a first screw 425, a first nut 426, a first support rod 427, a first cover 428, a first observation port 429, a second support rod 430, a second screw 431, and a second nut 432 are added. The blanching dehumidification cap 424 has a first observation port 429, which is covered by the first cover 428. One end of the first cover 428 has a first support rod 427 with a first through hole. The first support rod 427 is fitted onto the first screw 425 through the first through hole. The first screw 425 passes through the first through hole and is threadedly connected to the first nut 426. The first screw 425 is fixed to the blanching dehumidification cap 424. The second screw 431 is installed on the blanching and dehumidifying cap 424. The other end of the first cover 428 is provided with a second support rod 430. The second support rod 430 has a slot 433. The second support rod 430 is engaged with the second screw 431 through the slot 433. The second nut 432 is threadedly connected to the second screw 431 and presses and fixes the second support rod 430.

[0267] Tighten the first nut 426 and the second nut 432. The first nut 426 presses and fixes the first support rod 427, and the second nut 432 presses and fixes the second support rod 430. The first support rod 427 and the second support rod 430 press and fix the first cover 428 to the first observation port 429.

[0268] Loosen the first nut 426 and the second nut 432. The first nut 426 is released from its compression and fixation on the first support rod 427, and the second nut 432 is released from its compression and fixation on the second support rod 430. The second support rod 430 can be swung away from the second screw 431. The first support rod 427 can swing relative to the first screw 425, which will swing the first cover 428 away from the first observation port 429. The first observation port 429 will then open, allowing the viewing of the blanching process of the blanching roller.

[0269] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, any obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A machine for processing mechanically picked old leaves for green tea, characterized by: The utility model relates to a tea processing device, which comprises a fixation mechanism (4) for heating fixation of tea leaves by hot air, a rubbing and rolling machine (1) connected to the fixation mechanism (4) and adopting hot rubbing and rolling, a drying machine (2) connected to the other end of the rubbing and rolling machine (1), and a crushing device (3) connected to the other end of the drying machine (2) and capable of producing tea stems, broken tea and powder tea. The rubbing and rolling machine (1) comprises a rubbing and rolling workbench (11) provided with a plurality of rubbing and rolling discs (12), a tea guiding and protecting barrel (136) in communication with each rubbing and rolling disc (12), a tea guiding and protecting barrel (136) provided with a tea pushing mechanism for pushing tea leaves to the rubbing and rolling disc (12), and a hot air mechanism installed on each tea guiding and protecting barrel. The rubbing and rolling machine (1) further comprises a rubbing and rolling movable plate connected to the rubbing and rolling workbench (11) through at least three swing mechanisms, a rubbing and rolling pressing mechanism installed on the rubbing and rolling movable plate corresponding to each rubbing and rolling disc (12), and at least two swing mechanisms respectively connected to a rubbing and rolling driving motor (110) and driving the rubbing and rolling movable plate to swing. The rubbing and rolling machine (1) further comprises a discharging and unblocking mechanism installed on each rubbing and rolling disc (12) and a rubbing and rolling tea conveying machine (15) installed at the bottom of the rubbing and rolling workbench (11) for collecting and conveying tea leaves discharged by the discharging and unblocking mechanism. The discharging and unblocking mechanism comprises a uniform leaf unblocking cylinder (1441) installed vertically at the bottom of the discharging port (121), a uniform leaf unblocking shaft (1444) arranged in the uniform leaf unblocking cylinder (1441) and connected to the uniform leaf unblocking cylinder (1441) at both ends, a plurality of unblocking rods (1445) distributed on the circumferential side of the uniform leaf unblocking shaft (1444) along the axial direction, a unblocking driving motor (1438) installed on the uniform leaf unblocking cylinder (1441) and connected to the uniform leaf unblocking shaft (1444), and a sealing mechanism movably arranged between the discharging port (121) and the uniform leaf unblocking cylinder (1441) and capable of opening and closing the discharging port (121).

2. The machine-plucked old-leaf green tea processing apparatus according to claim 1, characterized by: The sealing mechanism comprises a first limiting seat (1431) provided with a first limiting sensor (1432), a second limiting seat (1435) provided with a second limiting sensor (1436) and arranged at a distance from the first limiting seat (1431), a first sealing plate (1434) provided with a touch rod (1433) at one end and a first swing rod (1437) at the other end, and a second sealing plate (1439) provided with a second swing rod (1438) at one end and a second touch rod (1437) at the other end. ​ ​ ​ ​ ​ 3. The machine-harvested old-leaf green tea processing apparatus according to claim 2, characterized by: ​ ​ ​ ​ ​ 4. The machine-harvested old-leaf green tea processing apparatus according to claim 3, characterized by: ​ ​ ​ ​ A sealing plate driving motor (1447) is in transmission connection with the swing rod (1437); The sealing plate driving motor (1447) drives the swing rod (1437) to swing, and the first sealing plate (1434) drives the touch rod (1433) to swing between the first limiting seat (1431) and the second limiting seat (1435).

5. The machine-plucked old leaf green tea processing apparatus as claimed in claim 2, wherein: The tea leaf stirring machine comprises A tea leaf stirring plate (141) is rotatably connected to the rolling workbench (11) through a fourth supporting shaft (142) at one end of the tea leaf stirring plate (141); and A third swing arm (139) is connected to the rolling movable plate (117) at one end and rotatably connected to the tea leaf stirring plate (141) through a third supporting shaft (140) at the other end.

6. The machine-plucked old leaf green tea processing apparatus as claimed in claim 1, wherein: The drying machine (2) comprises A drying cylinder (22) is rotatably installed on the first supporting frame (212), and a plurality of screen mesh cylinders (222) are arranged on the drying cylinder (22) at intervals along the length direction, and a plurality of de-agglomeration guide strips (224) are arranged on the inner side of the drying cylinder (22) at intervals, and the plurality of de-agglomeration guide strips extend in a spiral manner; A wind baffle (225) is hung at one end of the drying cylinder (22) and connected with the hot air pipe (215), and the wind baffle (225) is provided with an inlet (226), and the inlet (226) is connected with the feeding mechanism (200); A guide cylinder (24) is connected with the other end of the drying cylinder (22); An exhaust cap (25) is hung on the other end of the guide cylinder (24), and the top is provided with an exhaust port (251), and the bottom is provided with a discharge port; A discharge mechanism (201) is connected with the discharge port; A collection basket (213) is movably installed at the bottom of each screen mesh cylinder (222); A drying shell (21) is provided on the top of the first supporting frame (212) and covers the drying cylinder (22); and A transmission mechanism is in transmission connection with the drying cylinder (22).

7. The machine-harvested old-leaf green tea processing apparatus according to claim 6, characterized by: The discharge mechanism (201) comprises A bottom frame (2017); A discharge chute (2011) is open at the top, closed at one end, and open at the other end and connected with the second discharge chute (2028); the discharge chute (2011) is connected with the bottom frame (2017) through at least four second elastic plates (2013), and the second elastic plates (2013) are installed in an inclined manner; An air supply channel (2016) is provided at the bottom of the discharge chute (2011), one end of which is installed on the top supporting frame (2018), and the other end is installed on the bottom frame (2017); A blower (2012) is installed on the air supply channel (2016); and A second propulsion mechanism is in transmission connection with the discharge chute (2011).

8. The machine-plucked old leaf green tea processing apparatus as claimed in claim 1, wherein: The crushing device (3) comprises Multi-stage screen (38) comprising fixed edge plate (385), movable edge plate (384) and multi-stage screen, the multi-stage screen is downwardly concave arc-shaped net structure, one side is connected with fixed edge plate (385), the other side is connected with movable edge plate (384), the fixed edge plate (385) is fixedly installed on one side of the second support frame (316), the movable edge plate (384) is hingedly connected to the other side of the second support frame (316); Second sealing plate (332), both ends of the multi-stage screen are respectively attached to a second sealing plate (332), and the second sealing plate (332) is installed on the support frame (316); Rotary drum (32), both ends of the rotary drum (32) are provided with rotating shafts (310) and are partially inserted into the multi-stage screen, each rotating shaft (310) is installed on the support frame (316) through a rotary drum distance adjusting piece (328), and a plurality of level crushing pieces are installed on the longitudinal circumferential surface of the rotary drum (32) corresponding to the multi-stage screen; Screen distance adjusting piece (330), one end of the screen distance adjusting piece (330) is installed on the second support frame (316), and the other end is in transmission connection with the movable edge plate (384); Cover body (31), one end of the cover body (31) is hingedly connected with the second support frame (316), and the other end is provided with a clamping plate (333), when the cover body (31) is hingedly connected with the rotary drum (32), the clamping plate (333) is hingedly connected with the movable edge plate (384); Locking mechanism (329), one end of the locking mechanism (329) is hingedly connected with the second support frame (316), and the other end is used for hingedly locking the clamping plate (333) and the movable edge plate (384) on the second support frame (316); and Driving mechanism, the driving mechanism is in transmission connection with a rotating shaft (310).

9. The machine-harvested old leaf green tea processing apparatus as claimed in claim 8, wherein: The screen distance adjusting piece (330) comprises Bottom plate (3305), one end of the bottom plate (3305) is installed on the second support frame (316), the other end is outwardly extended relative to the second support frame (316) and connected with a vertical plate (3307), and the vertical plate (3307) is provided with a U-shaped groove (33071); Threaded cylinder (3303), the threaded cylinder (3303) penetrates the U-shaped groove (33071); Snap ring (3304), the snap ring (3304) is installed on one end of the threaded cylinder (3303); Limiting boss (3306), the limiting boss (3306) is installed on the other end of the threaded cylinder (3303); and Push-pull screw rod (3302), the push-pull screw rod (3302) is sequentially provided with the limiting boss (3306), the threaded cylinder (3303), the snap ring (3304) and is in threaded connection with the threaded cylinder (3303).

10. The machine-harvested old leaf green tea processing device according to claim 8, wherein: The locking mechanism (329) comprises Second swing rod (3295), both ends of the second swing rod (3295) are in a bent structure, one end is provided with a threaded sleeve (3294), and the other end is provided with a rotating shaft (3296); A support sleeve (3297) sleeved on the rotating shaft (3296) is installed on the second support frame (316); and A supporting screw rod (3291) is bolted through the threaded sleeve (3294); The grading crushing elements include first-stage crushing elements (33), second-stage crushing elements (34) and third-stage crushing elements (331), the third-stage crushing elements (331), the second-stage crushing elements (34) and the first-stage crushing elements (33) are sequentially distributed in the longitudinal direction on the rotating drum (32), the third-stage crushing elements (331) correspond to the hopper (35), and the third-stage crushing elements (331) are spirally installed on the rotating drum (32); The second-stage crushing elements (34) include a plurality of second-stage crushing rods which are circumferentially distributed on the circumferential surface of the rotating drum (32) at intervals, each second-stage crushing rod intersects with the axis of the rotating drum (32), and the included angle formed by the intersection is α, 0 < α ≤ 30°; The first-stage crushing elements (33) include a plurality of first-stage crushing rods which are circumferentially distributed on the circumferential surface of the rotating drum (32) at intervals, each first-stage crushing rod intersects with the axis of the rotating drum (32), and the included angle formed by the intersection is β, 5° ≤ β ≤ 50°.

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