Method and device for processing machine-harvested old leaf green tea

Abstract

The invention discloses a machine-harvested old-leaf green tea processing method which comprises the following steps: S1, picking: picking old tea leaves by using a tea-leaf picker; s2, performing fixation: performing fixation on the old tea leaves with hot air at the temperature of 180-300 DEG C, and enabling the moisture content of the tea leaves subjected to fixation to be 50-60%; s3, performing rolling: performing heat transfer on the enzyme-deactivated tea leaves obtained in the S2 to a rolling part, rolling hot air is supplied to the rolling part while the enzyme-deactivated tea leaves are rolled on the rolling part, the temperature of the rolling hot air is 30-60 DEG C, the rolling time is 30-60 min, and rolled tea leaves are obtained for standby application; s4, drying: the rolled tea leaves in S3 are conveyed to a dynamic drying part, powder tea is screened and filtered out during dynamic drying, the drying temperature is 80-130 DEG C, and the moisture content of the dried tea leaves is 5%-10% for standby application; and S5, crushing: conveying the dried tea leaves in the S4 to a crushing part, uniformly dividing the dried tea leaves while receiving the dried tea leaves by the crushing part, pushing the dried tea leaves to perform multi-stage crushing, and performing crushing to form powder tea, broken tea and tea stems of different grades.

Description

Technical Field

[0001] The invention relates to a method for processing old tea leaves, and in particular to a method and a device for processing machine-picked old leaf green tea. Background Art

[0002] Summer and autumn tea refers to tea leaves picked from tea trees in summer and autumn, usually including summer tea and autumn tea. The picking time of summer and autumn tea is usually between early June and the end of October, and the specific time varies from region to region. Summer is generally from June to the end of July, when tea trees germinate and differentiate, and tea leaves grow rapidly, but the accumulation of internal substances is insufficient, resulting in relatively low quality of tea leaves. Autumn is from August to the end of October, during which time the temperature begins to drop, the temperature difference between day and night is large, the internal substances of tea leaves accumulate richly, the aroma is high, and the taste is mellow. Tea leaves picked in summer usually have wide leaves and high resistance to brewing, but the aroma is slightly bitter and astringent. Tea leaves picked in autumn are rich in aromatic substances, have a high aroma, a mellow taste, and low bitterness.

[0003] The processing method of summer and autumn tea mainly includes the steps of picking, spreading, killing green, rolling, drying, etc. However, the inventor found in the work that when tea leaves are rolled, they are usually rolled at room temperature, and the rolling rate of tea leaves is low, which reduces the quality of tea leaves. In addition, during the processing, when the tea leaves are dried after rolling, the tea pieces and tea powder produced are not screened and filtered in time, and are dried together with the tea leaves. The powder accumulated in the drum will burn and produce smoke due to the high temperature. The tea leaves will absorb the smoke and affect the quality, and the dust amount when the tea leaves are dried and discharged in a concentrated manner will cause dust pollution in the production environment. In addition, when summer and autumn tea is used to make broken tea and powdered tea, the broken tea is usually made by a tea crusher. Powdered tea is usually made by a tea grinder. However, when the tea crusher and the tea grinder work at a single time, a tea product of a single specification is produced. Therefore, in view of the defects of the above-mentioned prior art, a method and device for processing machine-picked old leaf green tea is developed. Summary of the invention

[0004] The purpose of the present invention is to provide a method and device for processing machine-picked old leaf green tea in view of the defects of the prior art.

[0005] In order to achieve the above-mentioned purpose of the present invention, the following technical scheme is adopted:

[0006] A method for processing machine-picked old leaf green tea, the method comprising the following steps:

[0007] S1: Picking old tea leaves, using a tea picking machine to pick old tea leaves;

[0008] S2: killing the old tea leaves by hot air, the hot air temperature is 180℃~300℃, after killing the tea leaves, the moisture content of the tea leaves is 50%~60%;

[0009] S3: rolling, transferring heat from the withered tea leaves obtained in S2 to a rolling part, supplying hot rolling air to the rolling part while the withered tea leaves are rolled on the rolling part, the hot rolling air temperature is 30°C to 60°C, the rolling time is 30min to 60min, and the rolled tea leaves are ready for use;

[0010] S4: drying, transferring the rolled tea leaves from S3 to a dynamic drying part, screening and filtering out broken tea leaves and powdered tea leaves during dynamic drying, the drying temperature being 80°C to 130°C, and the moisture content of the tea leaves being 5% to 10% after drying, and the dried tea leaves are ready for use;

[0011] S5: Crushing: The dried tea leaves from S4 are transferred to the crushing part. The crushing part receives the dried tea leaves and evenly distributes them, promoting multi-stage crushing of the dried tea leaves to form powdered tea, broken tea and tea stems of different grades.

[0012] Another scheme based on the same inventive concept: a device applied to the above-mentioned machine-picked old leaf green tea processing method, comprising a withering mechanism, which uses hot air to directly contact the tea leaves for heating and withering, and the generated moisture is pushed outward by the hot air; a rolling machine, one end of the rolling machine is connected to the withering mechanism, and the rolling machine uses hot rolling; a dryer, the dryer is a drum-type dynamic dryer, one end of which is connected to the other end of the rolling machine; and a crushing device, the crushing device is connected to the other end of the dryer, and the crushing device can produce tea stalks, multiple grades of broken tea, and multiple grades of powdered tea.

[0013] Furthermore, the kneading machine includes a kneading workbench, on which a plurality of kneading disks are arranged; a tea guide barrel, each kneading disk is communicated with one of the tea guide barrels, the tea guide barrel is equipped with a tea moving mechanism for pushing tea leaves to the kneading disk, and each tea guide barrel is also equipped with a hot air mechanism; a kneading movable plate, the kneading movable plate is connected to the kneading workbench by at least three swinging mechanisms, and a kneading pressure mechanism is installed on the kneading movable plate corresponding to a kneading disk, wherein at least two swinging mechanisms are respectively connected to a kneading drive motor in a transmission manner, at least two swinging mechanisms drive the kneading movable plates to swing, and the kneading pressure mechanism cooperates with the kneading disk to knead the tea leaves; a unloading and deblocking mechanism, each kneading disk is provided with a unloading port, and the unloading port is equipped with a unloading and deblocking mechanism; and a kneading tea conveyor, the kneading tea conveyor is installed at the bottom of the kneading workbench, and is used to collect and convey the tea leaves unloaded by the unloading and deblocking mechanism.

[0014] Furthermore, the unloading and deblocking mechanism includes a leaf-leveling deblocking cylinder, which is vertically installed at the bottom of the discharge port; a leaf-leveling deblocking shaft, which is placed in the leaf-leveling deblocking cylinder, and is rotatably connected to the leaf-leveling deblocking cylinder at both ends, and a plurality of deblocking rods are distributed at intervals on the axial circumferential side surface; a deblocking drive motor, which is installed on the leaf-leveling deblocking cylinder and is transmission-connected to the leaf-leveling deblocking shaft; and a capping mechanism, which is movably placed between the discharge port and the leaf-leveling deblocking cylinder to enable the discharge port to be opened and closed.

[0015] Further, the covering mechanism includes a first limit seat, which is equipped with a first limit sensor; a second limit seat, which is provided with a second limit sensor and is spaced apart from the first limit seat; a sealing plate, which is provided with a touch rod at one end and a swing rod at the other end; and a sealing plate driving motor, which is transmission-connected with the swing rod; wherein, the sealing plate driving motor drives the swing rod to swing, and the sealing plate drives the touch rod to swing between the first limit seat and the second limit seat.

[0016] Furthermore, the tea-leaf-pulling machine includes a tea-leaf-pulling plate, one end of which is rotatably connected to the kneading workbench 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-leaf-pulling plate via a third support shaft.

[0017] Furthermore, the dryer includes a drying cylinder, which is rotatably mounted on a supporting frame, and a plurality of screen cylinders are arranged at intervals along the length direction of the drying cylinder, and a plurality of deblocking guide strips are arranged at intervals on the inner side surface of the drying cylinder, and the plurality of deblocking guide strips extend in a spiral distribution; a wind shield, which is suspended on one end of the drying cylinder and connected to a hot air pipe, and the wind shield is provided with a feed port, which is connected to a feed mechanism; a material guide cylinder, one end of which is connected to the other end of the drying cylinder; an exhaust cap, which is suspended and sleeved on the other end of the material guide cylinder, an exhaust port is provided on the top, and a discharge port is provided on the bottom; a discharge mechanism, which is connected to the discharge port; a collecting basket, a collecting basket is movably mounted on the bottom of each screen cylinder; a drying shell, which covers the drying cylinder and is mounted on the top of the supporting frame; and a transmission mechanism, which is transmission-connected to the drying cylinder.

[0018] Furthermore, the unloading mechanism includes a base frame; a unloading chute, the top of the unloading chute is open, one end is closed, and the other end is open and connected to a second unloading chute; the unloading chute is connected to the base frame by at least four second elastic plates, and the second elastic plates are installed in an inclined manner; an air supply duct, the air supply duct is placed at the bottom of the unloading chute, one end is installed on the top support frame, and the other end is installed on the base frame; a blower, the blower is installed on the air supply duct; and a second propulsion mechanism, the second propulsion mechanism is transmission-connected to the unloading chute.

[0019] Furthermore, the pulverizing device includes a multi-stage net, which includes a fixed side plate, a movable side plate and a multi-stage screen. The multi-stage screen is a downwardly concave arc-shaped net structure, one side of which is connected to the fixed side plate, and the other side is connected to the movable side plate. The fixed side plate is fixedly installed on one side of the support frame, and the movable side plate movably overlaps the other side of the support frame; a sealing plate, the two ends of the multi-stage screen are respectively attached to a sealing plate, and the sealing plate is installed on the support frame; a rotating drum, both ends of the rotating drum are provided with rotating shafts, and the multi-stage screen is partially inserted, and each rotating shaft is installed on the support frame through a rotating drum distance adjusting member. A support frame, and a plurality of grades of crushing parts are installed on the longitudinal circumferential surface of the rotating drum corresponding to the multi-stage screen; a screen distance adjusting member, one end of the screen distance adjusting member is installed on the support frame, and the other end is connected to the movable side plate in a driving manner; a cover body, one end of the cover body is hinged to the support frame, and the other end is provided with a strap, when the cover body is movably buckled on the rotating drum, the strap overlaps the movable side plate; a locking mechanism, one end of the locking mechanism is hinged to the support frame, and the other end movably locks the strap and the movable side plate to the support frame; and a driving mechanism, the driving mechanism is connected to a rotating shaft in a driving manner.

[0020] Further, the screen mesh distance adjusting member includes a bottom plate, one end of which is mounted on the support frame, and the other end of which extends outward relative to the support frame and is connected to a vertical plate, wherein the vertical plate is provided with a U-shaped groove; a threaded barrel, wherein the threaded barrel is provided with a U-shaped groove; a snap ring, wherein the snap ring is installed at one end of the threaded barrel; a limiting boss, wherein the limiting boss is installed at the other end of the threaded barrel; and a push-pull screw, wherein the push-pull screw is provided with a limiting boss, a threaded barrel, and a snap ring in sequence, and is threadedly connected to the threaded barrel;

[0021] The locking mechanism comprises a swing rod, both ends of which are bent structures, one end of which is equipped with a threaded sleeve, and the other end of which is equipped with a rotating shaft; a support sleeve, which is sleeved on the rotating shaft and installed on the support frame; and a top screw, which is bolted with a threaded sleeve;

[0022] The graded crushing parts include first-level crushing parts, second-level crushing parts and third-level crushing parts. The third-level crushing parts, second-level crushing parts and first-level crushing parts are distributed in sequence along the longitudinal direction of the rotating drum, and the third-level crushing parts correspond to the hopper; the third-level crushing parts are spirally installed on the rotating drum; the second-level crushing parts include multiple second-level crushing rods, and the multiple second-level crushing rods are distributed on the circumferential surface of the rotating drum at intervals, and each second-level crushing rod intersects with the axis line of the rotating drum, and the angle formed by the intersection is α, 0<α≤30°; the first-level crushing parts include multiple first-level crushing rods, and the multiple first-level crushing rods are distributed on the circumferential surface of the rotating drum at intervals, and each first-level crushing rod intersects with the axis line of the rotating drum, and the angle formed by the intersection is β, 5°≤β≤50°.

[0023] The present invention has significant improvements over the prior art:

[0024] 1. The present invention can realize the production of powdered tea, broken tea and tea stems of different specifications from the same batch of machine-picked tea raw materials. The present invention improves the shaping appearance of tea leaves through hot rolling, and the rate of tea leaves is high. When the tea leaves are dried, the tea powder can be screened, filtered and recovered to avoid wasting tea powder. When the tea leaves are crushed, multiple grades of powder and broken tea can be obtained at the same time. The present invention realizes continuous production, that is, the withered tea leaves are conveyed to rolling, and then threaded to crushing after rolling, which improves production efficiency, increases the yield of tea leaves, and increases economic benefits.

[0025] 2. The rotary drum of the present invention is equipped with multiple grades of crushing parts, which can be used to crush tea leaves, push tea leaves to move and break up tea leaves. When producing crushed tea and powdered tea, the distance between the multi-level screen and the rotary drum is adjusted by the rotary drum distance adjusting part and the screen distance adjusting part, so that the multiple grades of crushing parts squeeze the tea leaves on the multi-level screen, and grind and crush the tea leaves. The crushed tea and tea powder of various specifications are filtered by the corresponding grade of screen, and the adjacent grade of screen is provided with a partition, and the filtered crushed tea and tea powder are guided by the guide plate to the corresponding grade outlet for discharge.

[0026] 3. The third-level crushing parts in the form of spiral blades, the second-level crushing parts in the form of long rods, and the first-level crushing parts in the form of short rods are distributed in sequence on the rotating drum of the present invention in the direction extending from the hopper to the zero-level discharge parts. The spiral blades can push the tea leaves falling from the hopper to be evenly distributed while pushing the tea leaves forward, avoiding local overload, preventing blockage, and improving the crushing efficiency. The second-level crushing parts in the form of long rods and the third-level crushing parts in the form of short rods further break up the tea leaves, increase the contact between the tea leaves and the graded crushing parts and the multi-stage screens, which can not only make the crushing more uniform, but also speed up the crushing speed. It can be understood that the graded crushing parts of the present invention can improve the crushing efficiency and uniformity, reduce blockage and energy consumption, extend the life of the equipment, and improve product quality.

[0027] 4. The drum distance adjusting member of the present invention is used to support and install the drum, and can also adjust the position of the drum. The support plate is intersected with the first limit plate, the second bolt can threadably fix the first limit plate to the support frame, and the first bolt threadably fixes the second limit plate to the support frame.

[0028] 5. The screen distance adjusting member of the present invention is used to push and pull the moving side plate, which drives the multi-stage screen to move, thereby changing the distance between the multi-stage screen and the multiple levels of crushing parts on the rotating drum. The limiting boss and the clamping ring clamp the threaded barrel in the U-shaped groove of the vertical plate. When the threaded barrel is rotated, the push-pull screw is screwed in and out of the threaded barrel, and the push-pull screw drives the moving side plate, which drives the multi-stage screen to move, thereby adjusting the distance between the multi-stage screen and the rotating drum.

[0029] 6. The present invention has the function of kneading tea leaves at multiple points at the same frequency. Multiple kneading and pressurizing mechanisms are installed on the kneading movable plate, and multiple kneading disks are arranged on the kneading workbench. The multiple kneading and pressurizing mechanisms correspond to the multiple kneading disks one by one. The kneading movable plate is connected to the kneading workbench through multiple swinging mechanisms, and at least two of the multiple swinging mechanisms are respectively connected to the kneading drive motor. It can be seen that at least two swinging mechanisms can drive the kneading movable plate to swing, and the kneading movable plate drives multiple kneading and pressurizing mechanisms to swing at the same time, so that multiple points can knead tea leaves at the same time; and during kneading, the hot air mechanism can also provide hot air to the kneading disk to achieve hot kneading, improve the kneading quality, and improve the kneading quality of tea leaves. After kneading, the tea leaves are directly put into the unloading and deblocking mechanism for deblocking, which has high work efficiency and saves production costs.

[0030] 7. The present invention has the function of screening tea powder, that is, a drying drum is provided with a multi-section screen drum, which can filter the tea powder produced by drying, so that the tea powder and tea leaves are separated in time, and the filtered tea powder falls into the collection basket, so as to realize the recycling of tea powder, avoid the accumulated tea powder from burning and producing smoke, and improve the drying quality of tea leaves. A plurality of deblocking guide bars in the drying drum extend in a spiral distribution, and the plurality of deblocking guide bars rotate with the drying drum, pushing the tea leaves in the drying drum while driving the tea leaves to move upward, so as to turn the tea leaves, so that the tea leaves are heated evenly; and when the plurality of deblocking guide bars rotate with the drying drum, they can also collide with the tea leaves in the drying drum, so as to deblock the lumps and blocks of tea leaves mixed in the tea leaves, so that the tea leaves are looser, and the tea leaves are heated more fully and evenly, so as to improve the drying efficiency and further improve the quality of the dried tea leaves.

[0031] 8. The screening cylinder on the drying cylinder of the present invention can not only filter the tea powder, but also discharge the water vapor generated by the drying cylinder. The top of the exhaust cap is provided with an exhaust port. When the water vapor generated by the drying in the drying cylinder enters the exhaust cap through the guide cylinder, the water vapor is discharged upward from the exhaust port of the exhaust cap along with the hot air, and the tea leaves are discharged from the discharge port of the exhaust cap, thereby achieving the separation of tea leaves and water vapor.

[0032] 9. The wind shield of the present invention is hung on the port of the drying drum and is spaced apart from the side of the drying drum. It does not affect the drying rotation and can also prevent the hot air ejected from the hot air pipe from escaping in the reverse direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a machine-picked old leaf green tea processing device of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the hot rolling machine for machine-picked old leaf tea in the present invention;

[0035] Figure 3 It is a partial structural schematic diagram of the rolling machine in the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the connection between the kneading cover, the kneading cylinder and the lifter in the present invention;

[0037] Figure 5 It is a schematic diagram of a plurality of kneading discs being arranged on the kneading workbench in the present invention and a discharging and deblocking mechanism being installed at the bottom of the kneading disc;

[0038] Figure 6 It is a structural schematic diagram of the unloading and deblocking mechanism in the present invention;

[0039] Figure 7 It is a structural schematic diagram of the leaf leveling and deblocking machine in the present invention;

[0040] Figure 8 A structural schematic diagram of the tea conveyor of the present invention;

[0041] Fig. 9 It is a structural schematic diagram of the dynamic tea drying machine in the present invention;

[0042] Fig.10 It is a partial structural schematic diagram of the dynamic tea drying machine in the present invention;

[0043] Fig.11 It is a structural schematic diagram of the connection between the drying drum and the transmission mechanism in the present invention;

[0044] Fig.12 It is a structural schematic diagram of the drying drum in the present invention;

[0045] Fig.13 It is a structural schematic diagram of a drying cylinder in the present invention in which a deblocking material guide strip is installed;

[0046] Fig.14 A structural schematic diagram of the unloading mechanism in the present invention;

[0047] Fig.15 A schematic diagram of the structure of the feeding mechanism in the present invention;

[0048] Fig.16 It is a structural schematic diagram of the connection and application of multiple tea dynamic drying machines capable of screening powdered tea according to the present invention;

[0049] Fig.17 It is a schematic diagram of the structure of a pulverizing device for grading tea leaves according to the present invention;

[0050] Fig.18 It is a schematic diagram of the structure in which multiple levels of crushing parts are installed on the rotary drum in the present invention;

[0051] Fig.19 It is a schematic diagram of the installation structure of the multi-level network in the present invention;

[0052] Fig. 20It is a structural schematic diagram of the rotary drum distance adjusting member in the present invention;

[0053] Fig.21 It is a structural schematic diagram of the locking mechanism in the present invention;

[0054] Fig. 22 A schematic diagram of the structure of the screen distance adjusting member in the present invention;

[0055] Fig.23 A schematic diagram of the structure of the fixing mechanism in the present invention;

[0056] Fig.24 A schematic diagram of an installation structure of the fixing roller in the present invention;

[0057] Fig.25 It is a structural schematic diagram of the withering conveyor in the present invention;

[0058] Fig.26 Fresh old tea leaves picked by the machine of the present invention;

[0059] Fig. 27 The tea leaves after withering of the present invention;

[0060] Fig.28 The tea leaves are dried according to the present invention;

[0061] Fig.29 A schematic diagram of the product form of green powder tea produced by the present invention;

[0062] Fig.30 This is a schematic diagram of the product form of green broken tea 1 produced by applying the present invention;

[0063] Fig.31 This is a schematic diagram of the product form of green broken tea 2 produced by applying the present invention;

[0064] Fig.32 This is a schematic diagram of the product form of green tea stems produced by applying the present invention;

[0065] Names and serial numbers of components in the figure:

[0066] 1- rolling machine, 11- rolling workbench, 12- rolling plate, 121- discharge port, 13- guardrail, 14- guardrail seat, 15- rolling tea conveyor; 16- leaf leveling and deblocking machine, 161- first motor table, 162- leaf leveling and deblocking motor, 163- reducer, 164- leaf leveling shaft, 165- leaf leveling and deblocking rod, 166- leaf leveling bearing seat; 17- baffle, 18- spray gun, 19- air supply pipe, 110- rolling drive motor, 111- first swing arm, 112- first support shaft, 113- first shaft sleeve, 114- second shaft sleeve, 115-second swing arm, 116-second support shaft, 117-kneading movable plate, 118-reinforcement sleeve, 119-kneading cylinder, 120-kneading cover; 122-screw lifter, 1221-screw lifter, 1222-lifting drive motor, 1223-encoder, 123-support rod, 124-support frame, 125-sliding bracket, 1251-guide sleeve, 1252-diamond bearing seat, 1253-guide rod; 126-tea distribution rack, 127-tea guide cylinder, 128-first tea conveyor, 129-tea distribution conveyor conveyor, 130-tea transfer conveyor, 131-tea supply conveyor, 1311-conveyor belt, 1312-second baffle, 1313-second claw, 132-second tea conveyor, 133-hot air valve, 134-hot air pipe, 135-hot air nozzle, 136-tea guide barrel, 137-warm air machine, 138-third shaft sleeve, 139-third swing arm, 140-third support shaft, 141-tea plate, 142-fourth support shaft; 143-unloading block release mechanism, 1431-first limit seat, 1432-first limit Position sensor, 1433-touch rod, 1434-sealing plate, 1435-second limit seat, 1436-second limit sensor, 1437-swing rod, 1438-blocking drive motor, 1439-second motor platform, 1440-support rod, 1441-leaf-uniform block-forming cylinder, 1442-first drive shaft, 1443-bearing seat, 1444-leaf-uniform block-forming shaft, 1445-block-forming rod, 1446-support platform, 1447-block-forming drive motor, 1448-second drive shaft; 144-temperature sensor, 145-sensor bracket.

[0067] 2-dryer, 21-drying shell, 22-drying cylinder, 2201-drum, 222-screen cylinder, 223-support ring, 224-blocking guide bar, 23-roller, 24-guide cylinder, 25-exhaust cap, 251-exhaust port, 252-blocking net, 26-sealing cover, 27-observation port, 28-hinge, 29-lock seat, 210-locking rod, 211-auxiliary roller member, 212-support frame, 213-collecting basket, 214-bracket, 215-hot air pipe, 216-auxiliary frame, 217-first driven wheel. 218-first bolt, 219-first transmission member, 220-first driving wheel, 221-first driving motor, 2211-first driving shaft; 225-wind shield, 226-feeding port, 227-suspension rod; 200-feeding mechanism, 2001-feeding trough, 2002-first unloading chute, 2003-feeding rack, 2004-first bearing sleeve, 2005-first rotating shaft, 2006-first shaft seat, 2007-first motor, 2008-second driving wheel. 2009-second transmission member, 20010-first workbench, 20011-first bearing seat, 20012-first driven wheel, 20013-first angle code, 20014-second bolt, 20015-first elastic plate, 20016-second bearing sleeve, 20017-second bearing seat, 20018-first drive shaft, 20019-first push rod; 201-unloading mechanism, 2011-unloading chute, 2012-blower, 2013-second elastic plate, 2014-second angle code, 2015-third bolt, 2016-sending Air duct, 2017-base frame, 2018-support frame, 2019-third driven wheel, 2020-second drive shaft, 2021-second workbench, 2022-third bearing seat, 2023-fourth bearing seat, 2024-second push rod, 2025-second transmission member, 2026-second driving 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.

[0068] 3-crushing device, 31-cover, 32-drum, 33-first-stage crushing parts, 34-second-stage crushing parts, 35-hopper, 36-feeding control valve, 37-feeding pipe, 38-multi-stage net, 381-third-stage screen, 382-second-stage screen, 383-first-stage screen, 384-moving side plate, 385-fixed side plate, 39-support seat, 391-support shaft, 310-rotating shaft, 311-transmission member, 3 12-driven wheel, 313-driving wheel, 314-driving shaft, 315-driving motor, 316-support frame, 317-material guide plate, 318-third-stage outlet, 319-third-stage unloading member, 320-conveyor, 321-second-stage outlet, 322-second-stage unloading member, 323-partition plate, 324-first-stage outlet, 325-first-stage unloading member, 326-longitudinal support member, 327-vertical support; 32 8-drum distance adjustment part, 3281-shaft sleeve, 32811-shaft hole, 3282-second bolt, 3283-support plate, 3284-bearing seat, 3285-first limit plate, 3286-first bolt, 3287-second limit plate, 32871-adjustment slot; 329-locking mechanism, 3291-support screw, 3292-shift rod, 3293-anti-slip plate, 3294-threaded sleeve, 3295-swing Moving rod, 3296-rotating shaft, 3297-support sleeve; 330-screen distance adjusting part, 3301-handle, 3302-push-pull screw, 3303-threaded cylinder, 3304-clamping ring, 3305-bottom plate, 3306-limiting boss, 3307-vertical plate, 33071-U-shaped groove; 331-third-stage crushing part, 332-sealing plate, 333-bridge board, 334-zero-stage outlet, 335-zero-stage unloading part.

[0069] 4-tea-killing mechanism, 41-first tea conveyor, 42-first conveyor belt, 43-side baffle, 44-first baffle, 441-first claw, 45-reinforcement rod, 46-tea-killing hot air pipe, 47-first hot air valve, 48-first leaf-leveling drum, 49-leaf-leveling rod, 410-leaf-leveling driving motor, 411-leaf-leveling driving wheel, 412-leaf-leveling driving shaft, 413-leaf-leveling transmission member, 414-leaf-leveling driven wheel, 415-leaf-leveling shaft, 416-first support frame, 417-first tea feeding bin, 418-tea-killing shell, 419-tea-killing support frame, 420-first bracket, 421-first warm air blower, 422-first support net, 423-tea-killing discharge trough, 424-tea-killing 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-dehumidification pipe, 435-heat dissipation area, 436-heat dissipation hole, 439-support rod, 440-extension tube, 441-killing roller, 442-first rolling wheel, 443-second auxiliary wheel, 444-first support, 445-killing drive motor, 446-killing driving wheel, 447-killing transmission member, 448-first killing driven wheel, 449-killing drive shaft, 450-first drive roller, 451-second killing driven wheel, 452-first auxiliary wheel. DETAILED DESCRIPTION

[0070] In order to enable persons skilled in the art to better understand the technical solution in the present application, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments.

[0071] Embodiment 1:

[0072] like Figures 1 to 25 As shown, this embodiment provides a method for processing machine-picked old leaf green tea, and the processing method comprises the following steps:

[0073] S1: Picking tea leaves, picking summer tea or autumn tea.

[0074] S2: killing green tea, using hot air to kill the summer tea or autumn tea, the hot air temperature is 180°C, after killing green tea, the moisture content of the tea leaves is 60%.

[0075] S3: rolling, transferring heat of the withered tea leaves obtained in S2 to the rolling part, while the withered tea leaves are rolled on the rolling part, hot air is supplied to the rolling part, the temperature of the hot air is 30°C, the rolling time is 30 minutes, and the rolled tea leaves are ready for use.

[0076] S4: Drying, the rolled tea leaves of S3 are transferred to the dynamic drying part, and the broken tea leaves and powdered tea leaves are screened and filtered out during dynamic drying. The drying temperature is 80°C. After drying, the moisture content of the tea leaves is 10%. The dried tea leaves are then set aside.

[0077] S5: Crushing: The dried tea leaves from S4 are transferred to the crushing part. The crushing part receives the dried tea leaves and evenly distributes them, promoting multi-stage crushing of the dried tea leaves to form powdered tea, broken tea and tea stems of different grades.

[0078] Embodiment 2:

[0079] like Figures 1 to 25 As shown, this embodiment provides a method for processing machine-picked old leaf green tea, and the processing method comprises the following steps:

[0080] S1: Picking tea leaves, using a tea picking machine to pick old tea leaves.

[0081] S2: killing green tea leaves: using hot air to kill green tea leaves, the hot air temperature is 240°C, after killing green tea leaves, the moisture content of tea leaves is 55%.

[0082] S3: rolling, transferring heat of the withered tea leaves obtained in S2 to the rolling part, while the withered tea leaves are rolled on the rolling part, hot air for rolling is supplied to the rolling part, the temperature of the hot air for rolling is 45°C, the rolling time is 45 minutes, and the rolled tea leaves are ready for use.

[0083] S4: Drying, the rolled tea leaves of S3 are transferred to the dynamic drying part, and the broken tea leaves and powdered tea leaves are screened and filtered out during dynamic drying. The drying temperature is 105°C. After drying, the moisture content of the tea leaves is 7.5%. The dried tea leaves are then set aside.

[0084] S5: Crushing: The dried tea leaves from S4 are transferred to the crushing part. The crushing part receives the dried tea leaves and evenly distributes them, promoting multi-stage crushing of the dried tea leaves to form powdered tea, broken tea and tea stems of different grades.

[0085] Embodiment 3:

[0086] like Figures 1 to 25 As shown, this embodiment provides a method for processing machine-picked old leaf green tea, and the processing method comprises the following steps:

[0087] S1: Picking old tea leaves, using a tea picking machine to pick old tea leaves.

[0088] S2: killing green tea leaves: using hot air to kill green tea leaves, the hot air temperature is 300°C, after killing green tea leaves, the moisture content of tea leaves is 50%.

[0089] S3: rolling, transferring heat of the withered tea leaves obtained in S2 to the rolling part, while the withered tea leaves are rolled on the rolling part, hot air is supplied to the rolling part, the temperature of the hot air is 60°C, the rolling time is 60 minutes, and the rolled tea leaves are ready for use.

[0090] S4: Drying, the rolled tea leaves of S3 are transferred to the dynamic drying part, and the broken tea leaves and powdered tea leaves are screened and filtered out during dynamic drying. The drying temperature is 130°C. After drying, the moisture content of the tea leaves is 5%, and the dried tea leaves are ready for use.

[0091] S5: Crushing: The dried tea leaves from S4 are transferred to the crushing part. The crushing part receives the dried tea leaves and evenly distributes them, promoting multi-stage crushing of the dried tea leaves to form powdered tea, broken tea and tea stems of different grades.

[0092] It should be noted that the old tea leaves of Examples 1-3 can be picked in summer or autumn. The old tea leaves picked in summer are made into summer tea, and the old tea leaves picked in autumn are made into autumn tea.

[0093] It should also be noted that when the tea leaves are conveyed from the withering position to the rolling position, the temperature of the hot air provided to the tea leaves during conveying may be 45° C. to 55° C., usually 45° C., 50° C. or 55° C.

[0094] Based on a general inventive concept, in order to realize the device of the machine-picked old leaf green tea processing method adopted in Examples 1-3, it includes a fixing mechanism 4, a rolling machine 1, a dryer 2 and a crushing device 3. The fixing mechanism 4 uses hot air to directly contact with the tea leaves to heat and fix the tea leaves, and the generated moisture is pushed outward by the hot air. One end of the rolling machine 1 is connected to the fixing mechanism 4, and the rolling machine 1 adopts hot rolling. The dryer 2 is a drum-type dynamic dryer, one end of which is connected to the other end of the rolling machine 1; the crushing device 3 is connected to the other end of the dryer 2, and the crushing device 3 can produce tea stems, multiple grades of broken tea, and multiple grades of powdered tea.

[0095] Working method:

[0096] The machine-picked old tea leaves are put into the fixing mechanism 4, and hot air is introduced into the fixing mechanism 4. The tea leaves are directly in contact with the hot air while rolling in the fixing mechanism. The hot air fixes the tea leaves and pushes the moisture generated by the fixing outward in time, thereby improving the quality of the tea leaves obtained by the fixing.

[0097] The withering mechanism transfers the withered tea leaves to the rolling machine 1, and supplies hot air to the tea leaves during the transfer process to prevent the temperature of the tea leaves from dropping. When the tea leaves are transferred 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.

[0098] After rolling, the tea leaves are transferred to the dryer 2. While the dryer 2 dynamically dries the tea leaves, the tea powder produced by drying the tea leaves is timely screened and filtered, and the filtered tea powder is recovered.

[0099] The dried tea leaves are sent to the crushing device 3, which can crush the tea leaves to obtain tea powder and broken tea. The crushing device 3 can also produce tea stems. The crushing device does not crush the tea leaves, but loosens the tea leaves sent from the dryer again, making the tea leaves looser and more distinct.

[0100] In some optional embodiments, a structure of a twisting machine is provided. Figure 2-8 As shown, the rolling machine 1 includes a rolling workbench 11, a tea leaf guiding barrel 136, a rolling movable plate 117, a discharging and deblocking mechanism 143 and a rolling tea leaf conveyor 15. A plurality of kneading disks 12 are provided on the kneading workbench 11; each kneading disk 12 is communicated with a tea guide barrel 136, and the tea guide barrel 136 is equipped with a tea moving machine for pushing tea leaves to the kneading disk 12, and each tea guide barrel is equipped with a hot air mechanism; the kneading movable plate is connected to the kneading workbench by at least three swinging mechanisms, and a kneading pressure mechanism is installed on the kneading movable plate corresponding to a kneading disk 12, wherein at least two swinging mechanisms are respectively connected to a kneading drive motor 110 in transmission, and at least two swinging mechanisms drive the kneading movable plate to swing, and the kneading pressure mechanism cooperates with the kneading disk to knead the tea leaves; each kneading disk 12 is provided with a discharge port 121, and the discharge port 121 is equipped with a discharge deblocking mechanism 143; the kneading tea conveyor 15 is installed at the bottom of the kneading workbench 11, and is used to collect and convey the tea leaves discharged by the discharge deblocking mechanism 143.

[0101] The unloading deblocking mechanism is used to close and open the unloading port. When the unloading deblocking mechanism is in the open state with respect to the unloading port, the tea balls obtained by kneading in the kneading disk fall into the unloading deblocking mechanism through the unloading port. The unloading deblocking mechanism deblocks and loosens the tea balls entering therein, and the loosened tea balls fall into the kneading tea conveyor 15.

[0102] A connecting structure between the tea-leaf guiding barrel 136 and the kneading plate: a tea-leaf outlet connected to the kneading plate 12 is provided on the side of the tea-leaf guiding barrel 136 .

[0103] The kneading movable plate 117 is provided with a plurality of kneading pressure mechanisms corresponding to the plurality of kneading disks on the kneading workbench, and the plurality of kneading pressure mechanisms and the plurality of kneading disks form a one-to-one correspondence, that is, one kneading pressure mechanism corresponds to one kneading disk, and the kneading pressure mechanism and the kneading disk cooperate with each other to knead the tea leaves, and the kneading movable plate 117 can be driven by at least two swing mechanisms, and the driven kneading movable plate drives the plurality of kneading pressure mechanisms thereon to swing simultaneously, so that the kneading of multiple tea leaves can be realized simultaneously. The problem of low tea kneading efficiency caused by the single operation of the existing kneading machine is overcome.

[0104] It can be understood that the swing mechanism can enable the kneading movable plate to swing relative to the kneading workbench while supporting the kneading movable plate to be spaced apart from the top surface of the kneading workbench.

[0105] like Figure 2 As shown, a protective mechanism is additionally installed around the swing mechanism. The protective mechanism includes a guardrail 13 and a guardrail seat 14. The guardrail 13 is an arc-shaped structure, and both ends are installed on the kneading workbench 11 through the guardrail seat 14. The guardrail 13 includes a plurality of arc-shaped rods, and the plurality of arc-shaped rods are vertically spaced and arranged in parallel.

[0106] like Figure 1 As shown, in order to facilitate cleaning of the kneading workbench and the kneading disk, a cleaning mechanism is additionally installed, and the cleaning mechanism includes a spray gun 18 and an air supply pipe 19, and the air supply pipe 19 is connected to the spray gun 18 to supply gas to the spray gun 18. The air supply pipe can be connected to a compressed air station or an air compressor in the factory. When in use, the spray gun 18 is held in the hand, and the trigger on the spray gun 18 is pressed by the finger, and the spray gun 18 sprays compressed air outward, and the kneading workbench, the kneading disk, etc. can be cleaned by moving the spray gun.

[0107] like Figure 2 As shown, a baffle 17 is additionally installed at the bottom of the rolling tea conveyor 15 and the rolling workbench. Baffles 17 are installed on both sides of the rolling tea conveyor extending outward along the bottom of the rolling workbench 11. The baffle 17 can guide the tea leaves splashed thereon to the rolling tea conveyor.

[0108] The tea rolling conveyor can use a belt conveyor or a plate conveyor with mature existing technology, which can prevent the rolled tea leaves from leaking from the conveyor belt or conveyor plate during the conveying process.

[0109] A structure for conveying tea leaves to a rolling machine is provided, and a tea distribution rack 126, a tea delivery conveyor 129, a first tea delivery conveyor 128, a second tea delivery conveyor 132 and a tea supply conveyor 131 are additionally installed. The tea distribution rack 126 is installed on the rolling workbench 11, the tea delivery conveyor 129, the first tea delivery conveyor 128 and the second tea delivery conveyor 132 are installed on the tea distribution rack 126, and the first tea delivery conveyor 128 is placed at the bottom of one end of the tea delivery conveyor 129, and the second tea delivery conveyor 132 is placed at the bottom of the other end of the tea delivery conveyor 129, and one end of the tea transfer conveyor 130 is overlapped with the tea delivery conveyor 129, and the other end is connected to the tea supply conveyor 131.

[0110] In order to reduce the temperature change of tea leaves during the tea leaves conveying process, a plurality of heaters 137 are installed at intervals on the tea leaves distributing conveyor 129 , the first tea leaves conveyor 128 , the second tea leaves conveyor 132 and / or the tea leaves supplying conveyor 131 .

[0111] The first structure may be: a plurality of heaters 137 are installed at intervals on the tea distributing conveyor 129 , the first tea conveyor 128 , the second tea conveyor 132 or the tea supply conveyor 131 .

[0112] The second structure may be: a plurality of heaters 137 are installed at intervals on the tea distribution conveyor 129 , the first tea conveyor 128 , the second tea conveyor 132 , and the tea supply conveyor 131 .

[0113] The third structure may be: a plurality of heaters 137 are installed at intervals on the tea distributing conveyor 129 and the tea supplying conveyor 131 .

[0114] The fourth structure may be: a plurality of heaters 137 are installed at intervals on the first tea leaf conveyor 128 , the second tea leaf conveyor 132 , and the tea leaf supply conveyor 131 .

[0115] It is understandable that the present invention is not limited to the above four structures, and a suitable installation structure can be selected according to needs.

[0116] The number of heaters installed can be 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc. The heater can provide hot air to the conveyor, thereby heating the tea leaves conveyed by the conveyor, which can help to slow down the temperature drop of the tea leaves during the transportation process after the tea leaves are withered.

[0117] It should be noted that the tea distribution conveyor 129, the first tea conveyor 128, the second tea conveyor 132, and the tea supply conveyor 131 are all mesh belt conveyors that are mature in the existing technology.

[0118] It should also be noted that the air heater supplies hot air from the bottom of the conveyor mesh belt, and the hot air emerges from the bottom of the mesh belt to the top, which can heat the mesh belt and the tea leaves being transported. The hot air provided by the air heater can be 45℃~55℃.

[0119] like Fig.23 As shown, a plurality of second baffles 1312 are installed in parallel at intervals on the conveyor belt 1311 of the tea supply conveyor 131, and a second tooth claw 1313 in a sawtooth shape is provided on the top of the second baffle 1312. The second baffle 1312 pushes the tea leaves unloaded onto the conveyor belt forward. When the tea supply conveyor conveys tea leaves at an angle, the tea leaves will accumulate on the second baffle 1312, and the second tooth claw 1313 will grab the tea leaves that fall on the edge of the second baffle, thereby preventing the tea leaves from sliding off, and facilitating the second baffle to smoothly push the tea leaves upward.

[0120] like Figure 1 As shown, the first tea leaf conveyor 128 and the second tea leaf conveyor 132 can respectively convey tea leaves to the two tea leaf guide cylinders 127. During the conveying, the tea leaf conveyor can first convey tea leaves to one of the two tea leaf guide cylinders, and then reversely convey tea leaves to the other tea leaf guide cylinder. The tea leaf guide cylinder guides the tea leaves to the tea leaf guide barrel 136.

[0121] In some embodiments, a structure of a hot air mechanism is provided. The hot air mechanism is connected to the tea guiding barrel 136 to supply hot air to the tea guiding barrel 136. The tea guiding barrel is connected to the kneading plate, and the hot air enters the kneading plate through the tea guiding barrel to provide heat for the tea leaves on the kneading plate.

[0122] like Figure 2 , 3 As shown, the hot air mechanism includes a hot air pipe 134, a hot air valve 134 and a hot air nozzle 135. The hot air pipe 134 is connected to one end of the hot air nozzle 135, and the other end of the hot air nozzle 135 is installed on the tea guide barrel. The hot air valve 134 is installed on the hot air pipe 134 to control the hot air pipe to supply or disconnect hot air to the hot air nozzle.

[0123] Working method:

[0124] The hot air valve 134 is opened, and the hot air pipe 134 supplies hot air to the hot air nozzle 135, and the temperature of the hot air can be 45°C to 55°C. While the hot air nozzle supplies hot air to the tea guide barrel, the hot air can also assist in pushing the tea leaves in the tea guide barrel into the kneading plate. The hot air enters the kneading plate through the tea guide barrel, and the kneading plate is heated to achieve hot kneading of the tea leaves.

[0125] The benefits of hot rolling of tea are: 1. Promote cell breakage: hot rolling breaks the cell wall of tea through heating and mechanical force, releases cell fluid, helps to evenly distribute the contents of tea, and improves the concentration and taste of tea soup. 2. Hot rolling can accelerate the reaction of enzymes and polyphenols, forming a unique aroma and color. 3. Improve the appearance of tea: hot rolling makes the tea soft and easy to shape, forming tea with tight ropes and beautiful appearance, and improving the value of goods. 4. Improve the aroma: during the hot rolling process, the aromatic substances in the tea are volatilized by heat, which helps to form the aroma and make the tea aroma more intense. 5. Improve drying efficiency: hot rolling reduces the water content of tea, reduces the subsequent drying time, improves production efficiency, and helps to maintain the quality of tea. 6. Improve the taste: hot rolling makes the contents of tea easier to dissolve, the tea soup is more mellow, the astringency is reduced, and the taste is better.

[0126] In some embodiments, a structure of a discharging and deblocking mechanism is provided. Figure 6 As shown, the unloading deblocking mechanism includes a leaf-leveling deblocking cylinder 1441, a leaf-leveling deblocking shaft 1444, a deblocking driving motor 1438 and a capping mechanism. The leaf-leveling deblocking cylinder 1441 is vertically installed at the bottom of the discharge port 121; the leaf-leveling deblocking shaft 1444 is placed in the leaf-leveling deblocking cylinder 1441, and both ends are rotatably connected to the leaf-leveling deblocking cylinder 1441, and a plurality of deblocking rods 1445 are distributed at intervals on the axial circumferential side surface; the deblocking driving motor 1438 is installed in the leaf-leveling deblocking cylinder 1441, and is transmission-connected to the leaf-leveling deblocking shaft 1444; the capping mechanism is movably placed between the discharge port 121 and the leaf-leveling deblocking cylinder 1441, and the discharge port can be opened and closed.

[0127] The number of deblocking 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.

[0128] An installation structure of a deblocking driving motor 1438 is additionally provided with a second motor platform 1439 , and the second motor platform 1439 is installed on the leaf-uniforming deblocking cylinder 1441 for supporting and installing the deblocking driving motor 1438 .

[0129] The rotation connection between the uniform leaf deblocking shaft and the uniform leaf deblocking cylinder 1441 is as follows: the uniform leaf deblocking shaft 1444 is connected to the uniform leaf deblocking cylinder 1441 through a bearing seat 1443. That is, both ends of the uniform leaf deblocking shaft 1444 are respectively installed on the uniform leaf deblocking cylinder 1441 through a bearing seat 1443.

[0130] Working method:

[0131] The sealing mechanism is in an open state with respect to the discharge port 121, and the tea leaves on the kneading disk fall into the leaf leveling and deblocking cylinder 1441 through the discharge port. The deblocking driving motor 1438 is connected to the leaf leveling and deblocking shaft 1444 through the first driving shaft 1442. The deblocking driving motor 1438 drives the first driving shaft 1442 to rotate, and the first driving shaft 1442 drives the leaf leveling and deblocking shaft 1444 to rotate. The leaf leveling and deblocking shaft 1444 drives multiple deblocking rods 1445 thereon to rotate, and the multiple deblocking rods 1445 rotate and hit the falling tea leaves, so that the tea leaves can be deblocked and loosened, thereby achieving a deblocking and loosening effect.

[0132] In some embodiments, a structure of a capping mechanism is provided, such as Figure 6 As shown, the capping mechanism includes a first limit seat 1431, a second limit seat 1435, a sealing plate 1434 and a sealing plate driving motor 1447. The sealing plate driving motor 1447 is provided with a second driving shaft 1448, and the first limit seat 1431 is installed with a first limit sensor 1432; the second limit seat 1435 is provided with a second limit sensor 1436, and is spaced apart from the first limit seat 1431; one end of the sealing plate 1434 is provided with a touch rod 1433, and the other end is provided with a swing rod 1437; the sealing plate driving motor 1447 and the swing rod 1437 are connected by transmission through the second driving shaft 1448; wherein, the sealing plate driving motor 1447 drives the swing rod 1437 to swing, and the sealing plate 1434 drives the touch rod 1433 to swing between the first limit seat 1431 and the second limit seat 1435.

[0133] One structure of the first limiting seat 1431 and the second limiting seat 1435 may be a U-shaped seat, which can help the first limiting seat and the second limiting seat to support the touch rod.

[0134] The second driving shaft 1448 and the swing rod 1437 can be connected by a key.

[0135] It should be noted that when the touch rod 1433 is on the first limit seat 1431, the sealing plate 1434 closes the discharge port 121. When the touch rod 1433 is on the second limit seat 1435, the sealing plate 1434 is separated from the discharge port 121, and the discharge port 121 is in an open state, and the tea balls on the kneading plate can be discharged through the discharge port.

[0136] The first limit sensor 1432 and the second limit sensor 1436 are both electrically connected to the sealing plate driving motor 1447 to limit the operation of the deblocking driving motor.

[0137] It is understandable that in order to facilitate the control of the deblocking drive motor and the sealing plate drive motor, a control module (not shown in the figure) is added. The first limit sensor 1432, the second limit sensor 1436, the sealing plate drive motor 1447, and the deblocking drive motor 1438 are all electrically connected to the control module.

[0138] It should be noted that, as is common knowledge in the art, the control module used in this solution and the motion control of the devices connected thereto are mature single-chip microcomputer technologies, which can be easily purchased from the market and can be used after simple debugging.

[0139] Working method:

[0140] In the initial state, the touch rod is placed in the first limit seat 1431. The control module controls the sealing plate driving motor 1447 and the block release driving motor 1438 to work, the sealing plate driving motor 1447 drives the second driving shaft 1448 to rotate, the second driving shaft 1448 drives the swing rod 1437 to rotate, the swing rod 1437 drives the sealing plate 1434 to swing, the sealing plate 1434 drives the touch rod 1433 to rotate toward the second limit seat 1435, and rotates until the touch rod 1433 touches the second limit sensor 1436, the second limit sensor 1436 sends a data signal to the control module, and the control module receives the data signal to control the sealing plate driving motor 1447 to stop working.

[0141] The control module can be set to stop working 30 to 60 seconds after the touch rod 1433 touches the second limit sensor 1436, and the control module controls the deblocking drive motor 1438 to stop working, and the sealing plate drive motor 1447 drives the second drive shaft 1448 to rotate, and the second drive shaft 1448 drives the swing rod 1437 to rotate, and the swing rod 1437 drives the sealing plate 1434 to swing, and the sealing plate 1434 drives the touch rod 1433 to rotate toward 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. The control module receives the data signal to control the sealing plate drive motor 1447 and the deblocking drive motor 1438 to temporarily work, and the sealing plate 1434 is closed at the discharge port.

[0142] It should be noted that the control module can also set the time after the touch rod touches the first limit sensor as T, and the value range of T can be 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 block release drive motor 1438 to work again, and the above-mentioned repeated cycle work is performed. It is understandable that the setting of T can also be set according to the tea rolling time, that is, according to the actual time required for the tea rolling work.

[0143] In some embodiments, in order to further level and de-agglomerate the tea leaves, a level and de-agglomerate machine 16 is additionally installed. The level and de-agglomerate machine 16 is installed on the rolling tea leaf conveyor 15 and is used to level and de-agglomerate the tea leaves conveyed by the rolling tea leaf conveyor 15 .

[0144] The leaf leveling and deblocking machine 16 includes a leaf leveling shaft 164, both ends of which are mounted on the rolling tea conveyor 15 via leaf leveling bearing seats 166, and a plurality of leaf leveling and deblocking rods 165 are installed at intervals on the axial circumferential side surfaces; and a leaf leveling and deblocking motor 162, which is mounted on the rolling tea conveyor 15 and is connected to the leaf leveling shaft 164 via a reducer 163.

[0145] The number of leaf-leveling and deblocking rods 165 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.

[0146] Working method:

[0147] The leaf leveling and delumping motor 162 drives the reducer 163 to work, and the reducer 163 drives the leaf leveling shaft 164 to work, and the leaf leveling shaft 164 drives the multiple leaf leveling and delumping rods thereon to rotate, and the multiple leaf leveling and delumping rods level and delump the tea leaves transported by the rolling tea conveyor, thereby achieving further leveling and delumping of the tea leaves, thereby effectively preventing tea clumps or lumps from entering the next tea processing step.

[0148] In some embodiments, a structure of a 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 movable plate 117; one end of the second swing arm 115 is rotatably connected to the other end of the first swing arm 111 through a first support shaft 112, and the other end is rotatably connected to the kneading workbench 11 through a second support shaft 116.

[0149] A connection structure between the first swing arm and the second swing arm: a first sleeve 113 is provided at one end of the first swing arm. Second sleeves 114 are provided at both ends of the second swing arm. The first sleeve 113 on the first swing arm is connected to a second sleeve on one end of the second swing arm 115 through a first support shaft 112. The first swing arm and the second swing arm can rotate relative to each other.

[0150] It should be noted that when the swing mechanism is in transmission connection with the kneading drive motor 110, the kneading drive motor 110 is in transmission connection with the second support shaft 116. The second support shaft is fixedly connected with 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, and the second swing arm drives the first swing arm to swing, and the first swing arm drives the kneading movable plate 117 to swing.

[0151] In some optional embodiments, a structure of a tea leaf moving machine is provided. The tea leaf moving machine is used to push the tea leaves in the tea leaf guide barrel into the kneading plate. The tea leaf moving machine includes a tea leaf moving plate 141 and a third swing arm 139. One end of the tea leaf moving plate 141 is rotatably connected to the kneading workbench 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 leaf moving plate 141 via a third support shaft 140.

[0152] The third swing arm 139 is provided with a third shaft sleeve 138, and the third shaft sleeve 138 is connected to the tea leaf shifting plate 141 through a third support shaft 140. That is, one end of the third support shaft 140 is rotatably connected to the third shaft sleeve 138, and the other end is connected to the tea leaf shifting plate 141.

[0153] When the kneading movable plate 117 swings, it drives the third swing arm 139 to swing, and the third swing arm 139 drives the tea leaf shifting plate 141 to swing through the third support shaft 140. When the tea leaf shifting plate 141 swings, it pushes the tea leaves in the tea leaf guiding barrel 136 into the kneading disk 12.

[0154] It is understandable that the tea-leaf-moving plate can rotate relative to the kneading workbench through the fourth support shaft. The third swing arm can rotate relative to the third support shaft through the third shaft sleeve.

[0155] In some optional embodiments, a structure of a kneading and pressing mechanism is provided. Figure 4 As shown, the kneading and pressurizing mechanism includes a kneading cylinder 119, a kneading cover 120, a screw lifter 122 and a temperature sensor 144. The kneading cylinder 119 passes through the kneading movable plate 117 and extends toward the kneading disk 12; the kneading cover 120 is movably placed on the kneading cylinder 119, and the top is connected to a sliding bracket 125, and 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 lifter 122 is provided with a retractable screw, which is mounted on the support frame 124, and the screw and the sliding bracket 125 are connected through a support rod 123; the temperature sensor 144 is mounted on the sliding bracket 125.

[0156] It is understandable that in order to facilitate the operation of the kneading and pressing machine, a controller (not shown in the figure) is added. The controller is electrically connected to the kneading and pressing machine.

[0157] In order to further strengthen the connection between the kneading cylinder and the kneading movable plate, a reinforcing sleeve 118 is additionally installed. The kneading cylinder is installed on the kneading movable plate 117 through the reinforcing sleeve 118.

[0158] It should be noted that a tube hole for installing a kneading tube is provided on the kneading movable plate.

[0159] When the screw lifter is working, it can drive the screw to extend and retract. The length of the screw can be adjusted according to the needs of kneading. The screw drives the kneading cover to move toward the kneading disk, which can increase the kneading pressure.

[0160] A structure of a screw lift includes a screw lifter 1221, a lifting drive motor 1222 and an encoder 1223. The screw lifter 1221 is provided with a screw and an input shaft. Both ends of the input shaft extend out of the screw lifter. One end of the input shaft is transmission-connected to the lifting drive motor 1222, and the other end is connected to the encoder 1223. The screw lifter 1221 is installed on a support frame 124.

[0161] The lifting drive motor 1222 drives the input shaft to rotate, the input shaft drives the screw lifter 1221 to work, and the screw lifter 1221 drives the screw to move.

[0162] The lifting drive motor 1222 and the encoder 1223 are both electrically connected to the controller. The encoder transmits data information to the controller in real time, and the controller controls the lifting drive motor to work according to the data information transmitted by the encoder, and then controls the work of the screw lifter to achieve the movement of the screw.

[0163] It should be noted that when the lifter driving motor drives the input shaft to rotate clockwise, the screw lifter drives the screw to extend outward. When the lifter driving motor drives the input shaft to rotate counterclockwise, the screw lifter drives the screw to retract.

[0164] The extension of the screw rod can increase the kneading pressure of the kneading gland, and the contraction of the screw rod can reduce the kneading pressure of the kneading gland.

[0165] It is understandable that one structure of the screw lifter may be an existing screw lifter with mature technology.

[0166] The temperature sensor 144 is mounted on the sliding bracket 125 through the sensor bracket 145. The temperature sensor can monitor the temperature of the kneading disk during kneading in real time.

[0167] The upper limit and lower limit can be set on the encoder. The lower limit can correspond to the maximum retracted height of the screw rod, and the upper limit can correspond to the maximum length of the screw rod extension. It can be understood that when the screw rod is at the maximum extension length, the distance between the kneading cover and the kneading disk is the smallest. When the encoder is at the upper limit, the controller can control the elevator drive motor to pause, and the pause time can be the time required for kneading the tea leaves. After the kneading time is reached, the controller controls the elevator drive motor to work in the reverse direction, and the screw rod retracts upward to the height corresponding to the lower limit of the encoder.

[0168] In some optional embodiments, a structure of a drying machine is provided. Figure 9-16As shown, the present embodiment is a dynamic tea drying machine capable of screening powdered tea, comprising a drying cylinder 22, a windshield plate 225, a material 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 support frame 212, and a plurality of screen cylinders 222 are arranged at intervals along the length direction on the drying cylinder 22, and a plurality of deblocking guide strips 224 are distributed at intervals on the inner side surface of the drying cylinder 22, and the plurality of deblocking guide strips extend in a spiral distribution; a wind shield 225 is suspended at one end of the drying cylinder 22 and is connected to the hot air pipe 215, and a feed port 226 is provided on the wind shield 225, and the feed port 226 is connected to the feed mechanism 200; one end of the guide cylinder 24 is connected to the other end of the drying cylinder 22; an exhaust cap 25 is suspended and sleeved on the other end of the guide cylinder 24, an exhaust port 251 is provided on the top, and a discharge port is provided at the bottom; the discharge mechanism 201 is connected to the discharge port; a collecting basket is movably installed at the bottom of each screen cylinder 22; a drying shell 21 covers the drying cylinder 22 and is mounted on the top of the support frame 212; a transmission mechanism is transmission-connected to the drying cylinder 22.

[0169] like Fig. 9 As shown, when the hot air pipe 215 hinders the supply of tea leaves to the feeding mechanism 200, the hot air pipe can be bent to reserve a working space above the feeding mechanism for placing the rolled tea leaves.

[0170] like Fig.11 As shown, the wind deflector 225 is suspended in the port of the drying drum.

[0171] like Fig.12 As shown, the screen cylinder 222 can not only allow hot air to pass through, but also filter the tea powder generated during the drying process in the drying cylinder. The tea powder falls into the collection basket below the drying cylinder through the screen cylinder, so that the tea powder is recycled.

[0172] It is understandable that if Fig. 9 , 10 As shown, baffles are installed on both sides of the support frame 212. The width of the baffles can be extended from the top of the support frame to the middle thereof. When the hot air in the drying cylinder is ejected outward through the screen cylinder, the tea powder carried by the hot air can be blocked by the baffles and fall into the collection basket below. The loss of tea powder can be reduced.

[0173] like Fig.13As shown, there are multiple de-agglomerating guide bars distributed in the drying drum, and the multiple de-agglomerating guide bars extend in a spiral distribution. This overcomes the problem that the existing spiral blades can only push the tea leaves but cannot loosen the tea leaves. The multiple de-agglomerating guide bars push the tea leaves in the drying drum forward and drive the tea leaves upward, thereby turning the tea leaves and heating them evenly. When the multiple de-agglomerating guide bars rotate with the drying drum, they can also collide with the tea leaves in the drying drum, thereby de-agglomerating the lumps and blocks of tea leaves mixed in the tea leaves, making the tea leaves looser and heating them more fully and evenly, thereby improving the drying efficiency and the quality of the dried tea leaves.

[0174] like Fig.16 As shown, the present invention can be used in series to achieve multiple dynamic drying. Tea leaves can be transported between adjacent dynamic dryers by a conveyor.

[0175] It should be noted that if Fig.16 As shown, a structure for drying tea leaves in series between multiple dynamic dryers is provided, 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 by the second dynamic dryer into the third conveyor 500, the third conveyor 500 conveys the tea leaves to the next conveyor, and the connection is repeated in this way to realize multiple dynamic dryers in series, so that the tea leaves can be dried multiple times.

[0176] In some optional embodiments, a structure of a transmission mechanism is provided. Fig.11 As shown, the transmission mechanism includes a first driven wheel 217, a first driving motor 221 and a first driving wheel 220. The first driven wheel 217 is mounted on the end surface of the drying drum 22 through a plurality of first bolts 218; the first driving motor 221 is provided with a first driving shaft 2211; the first driving wheel 220 is mounted on the first driving shaft 2211, and the first driving wheel 220 is in transmission connection with the first driven wheel 217.

[0177] 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 thereto, and an appropriate number of first bolts can be selected according to actual work needs.

[0178] A transmission connection structure between the first driving wheel 220 and the first driven wheel 217, the first driving wheel 220 and the first driven wheel 217 can be connected by meshing transmission. The first driving wheel 220 and the first driven wheel 217 are gear structures.

[0179] Another transmission connection structure of the first driving wheel 220 and the first driven wheel 217, the first driving wheel 220 and the first driven wheel 217 are transmission connected through the first transmission member 219. When the first transmission member 219 is a transmission belt, the first driving wheel 220 and the first driven wheel 217 are a pulley structure. When the first transmission member 219 is a transmission chain, the first driving wheel 220 and the first driven wheel 217 are a sprocket structure.

[0180] Working method:

[0181] The first driving motor 221 drives the first driving shaft 2211 to rotate, the first driving shaft 2211 drives the first driving wheel 220 to rotate, the first driving wheel 220 drives the first driven wheel 217 to rotate through the first transmission member 219, and the first driven wheel 217 drives the drying drum 22 to rotate.

[0182] In some optional embodiments, a rotating structure of the drying drum is provided, and an auxiliary roller 211 and a roller 23 are additionally installed. Figure 9-11 As shown, two auxiliary roller members 211 are installed in parallel and at intervals at both ends of the support frame 212, and rollers 23 are installed at both ends of the drying cylinder 22. The two auxiliary roller members 211 support a roller 23 to rotate.

[0183] The auxiliary roller member may be structured as a roller and a support seat, with both ends of the roller rotatably mounted on the support seat.

[0184] The rollers 23 at both ends of the drying drum are supported by two auxiliary roller members respectively. When the drying drum is subjected to a rotational driving force, the two auxiliary roller members at both ends of the drying drum support the drying drum to rotate.

[0185] An installation structure of the auxiliary roller member 211: the auxiliary roller member is installed on the support frame 212 through the auxiliary frame 216.

[0186] In some optional embodiments, a structure of a drying drum is provided. Fig.12 As shown, the drying drum 22 further comprises a drum 2201 and a support ring 223. A screen drum 222 is installed between two adjacent drums 2201, and at least one support ring 223 is sleeved on the screen drum 222.

[0187] The number of support rings that can be sleeved on the screen cylinder 222 can be 1, 2, 3 or 4, etc. The support rings can enhance the bearing force of the screen cylinder and prevent the screen cylinder from being deformed.

[0188] It is understandable that the side of the drum is sealed. The screen drum can filter the tea powder produced during the drying process. The drying drum is combined with the drum and the screen drum to avoid the drying drum being a fully ventilated structure. The drum can help the drying drum to have a certain heat accumulation effect, so that a certain drying temperature can be maintained in the drying drum to achieve tea drying.

[0189] In some embodiments, in order to facilitate the inspection of the drying status in the drying drum, a cover 26, a hinge 28, a lock seat 29 and a lock rod 210 are added. Fig.10 As shown, the exhaust cap 25 is provided with an observation port 27 , one end of the cover 26 is mounted on the exhaust cap 25 via a hinge 28 , one end of the locking rod 210 is mounted 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 .

[0190] One structure of the lock rod may be a screw. A through hole is provided on the lock seat, and a threaded hole is provided on the exhaust cap corresponding to the through hole of the lock seat. When the lock seat needs to be fixed on the exhaust cap, the screw is passed through the through hole on the lock seat and then screwed into the threaded hole, and the screw is tightened. The screw fixes the lock seat on the exhaust cap, and the cover closes the observation port. When the lock seat needs to be separated from the exhaust cap, the screw is unscrewed, the lock seat can be separated from the exhaust cap, and the cover can also be opened, so that the staff can view the drying conditions in the drying drum through the observation port. It is understandable that when the light in the drying drum is insufficient, a flashlight can be used to shine into the drying drum through the observation port to increase the brightness for easy viewing.

[0191] In some embodiments, a structure of a discharge mechanism is provided. Fig.14 As shown, the unloading mechanism 201 includes a base frame 2017, a unloading chute 20111, an air supply duct 2016, a blower 2012 and a second propulsion mechanism. The top of the unloading chute 2011 is open, one end is closed, and the other end is open and connected to the second unloading chute 2028; the unloading chute 20111 is connected to the base frame 2017 through at least four second elastic plates 2013, and the second elastic plates 2013 are installed in an inclined manner; the air supply duct 2016 is placed at the bottom of the unloading chute 20111, one end is installed on the top support frame 2018, and the other end is installed on the base frame 2017; the blower 2012 is installed on the air supply duct 2016; and the second propulsion mechanism is connected to the unloading chute 20111 in a transmission manner.

[0192] The top of the discharge chute is open so that tea leaves can be easily put into the discharge chute. One end of the discharge chute is closed to prevent the tea leaves from falling out from this end.

[0193] The air supply duct is spaced apart from the bottom of the discharge chute, and the air supply duct does not affect the movement of the discharge chute.

[0194] The blower 2012 supplies air to the air supply duct, and the air supply duct guides the air to the bottom of the discharge trough, which can achieve a cooling effect on the bottom of the discharge trough. The dried tea leaves discharged from the drying cylinder fall into the discharge trough, and the tea leaves exchange heat with the discharge trough, which can achieve an indirect cooling effect on the tea leaves.

[0195] An 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 code 214, and the other end of the second elastic plate is installed on the bottom of the discharge chute 20111 through another second angle code, and the second angle code is fixedly connected to the discharge chute and the base frame through a third bolt 2015.

[0196] like Fig.14 As shown, the second elastic plate 2013 is inclined in the opposite direction of the discharge chute.

[0197] In some embodiments, a structure of the second propulsion mechanism is provided. Fig.14 As shown, the second propulsion mechanism includes a second workbench 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 workbench 2021 through a fourth bearing seat 2023, and the other end is mounted on the second workbench 2021 through a third bearing seat 2022; both ends of the second rotating shaft 2030 are mounted on the bottom of the discharge chute 20111 through a fifth bearing seat 2029; one end of the second push rod 2024 is connected to the second rotating shaft 2030, and the other end extends downwardly and is connected to the second drive shaft 2020; the third driven wheel 2019 is in transmission connection with the second drive shaft 2020; the second drive motor 2027 is provided with a second output shaft; the second driving wheel 2026 is key-connected with the second output shaft, and is in transmission connection with the third driven wheel 2019.

[0198] A transmission connection structure between the third driven wheel 2019 and the second drive shaft 2020 is: the third driven wheel 2019 and the second drive shaft 2020 are connected by a key.

[0199] A third bearing sleeve 2031 is also mounted on the second rotating shaft 2030. The third bearing sleeve 2031 is fixed to the second rotating shaft 2030 and is used to be connected to the second push rod 2024.

[0200] A transmission structure of 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 member 2025.

[0201] It is understandable that the second transmission member 2025 is a transmission belt, and the third driven wheel 2019 and the second driving wheel 2026 are both pulleys. The second transmission member 2025 is a transmission chain, and the third driven wheel 2019 and the second driving wheel 2026 are both sprockets.

[0202] One structure of the second drive motor 2027 is a limited angle motor. It is understandable that the angle range of the reciprocating rotation of the second drive motor can be set according to work needs. The second drive motor reciprocates within the set angle range, which drives the third driven wheel 2019 to reciprocate, and the third driven wheel 2019 drives the second drive shaft 2020 to reciprocate, and the second drive shaft 2020 drives the second push rod 2024 to swing back and forth, and the second push rod 2024 pushes and pulls the discharge chute 20111 through the second rotating shaft 2020. Under the support of multiple second elastic plates, the discharge chute 20111 reciprocates and pushes upward relative to the discharge direction, so that the tea leaves in the discharge chute can be thrown in the discharge direction, so that the tea leaves gradually move toward the second discharge chute and are discharged from the second discharge chute.

[0203] In some optional embodiments, a structure of a feeding mechanism is provided. Fig.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 through at least four first elastic plates 20015, and the first elastic plates 20015 are installed in an inclined manner. The first propulsion mechanism is installed on the feeding frame 2003 and is in transmission connection with the feeding trough 2001.

[0204] 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 in the feed trough from falling out.

[0205] An 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 through the first angle code 20013, and the first angle code 20013 and the feed trough 2001 and the feed rack 2003 are fixedly connected by the second bolt 20014.

[0206] like Fig.15 As shown, the first elastic plate is inclined in the opposite direction of the feeding direction. When the feeding trough is subjected to the force applied by the first propulsion mechanism, the plurality of first elastic plates support the feeding trough to push it upward relative to the feeding direction, so that the tea leaves in the feeding trough are thrown in the opposite direction of the feeding direction. This can help the tea leaves to loosen during the movement.

[0207] 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 manner. The first elastic plate swings in the direction of feeding. Under the limiting action of multiple first elastic plates, the first propulsion mechanism causes the feed trough to move upward, and the tea leaves in the feed trough follow the upward movement. The feed trough moves upward reciprocatingly, so that the tea leaves continue to move in the direction of feeding until they fall into the feed port 226 from the first unloading chute.

[0208] like Fig.15 As shown, a structure of the first propulsion mechanism is: the first propulsion mechanism includes a first workbench 20010, a first driving shaft 20018, a first driven wheel 20012, a second driving wheel 2008, a first motor 2007, a first rotating shaft 2005 and a first push rod 20019. One end of the first driving shaft 20018 is installed on the first workbench 20010 through the first bearing seat 20011, and the other end is installed on the first workbench 20010 through the second bearing seat 20017; the first driven wheel 20012 is installed on the first driving shaft 20018; the first motor 2007 is provided with a first output shaft; the second driving wheel 2008 is installed on the first output shaft and is connected to the first driven wheel 20012 in transmission; both ends of the first rotating shaft 2005 are installed on the bottom of the feed trough 2001 through the first shaft seat 2006; one end of the first push rod 20019 is connected to the first driving shaft 20018, and the other end extends upward at an angle to be connected to the first rotating shaft 2005.

[0209] One structure of the first drive motor is a limited angle motor. It is understandable that the angle range of the reciprocating rotation of the first drive motor can be set according to work needs. The first drive motor reciprocates within the set angle range, driving the first driven wheel 20012 to reciprocate.

[0210] A second bearing sleeve 20016 is mounted on the first drive shaft 20018. The second bearing sleeve 20016 is used to be connected to the first push rod 20019.

[0211] A transmission connection structure of the first driven wheel 20012 and the second driving wheel 2008, the first driven wheel 20012 and the second driving wheel 2008 are transmission connected through the second transmission member 2009. When the second transmission member 2009 is a transmission belt, the first driven wheel 20012 and the second driving wheel 2008 are both pulleys. When the second transmission member 2009 is a transmission chain, the first driven wheel 20012 and the second driving wheel 2008 are both sprockets.

[0212] In some optional embodiments, a suspension structure of a windshield plate and an exhaust cap is provided, and a bracket 214 and a suspension rod 227 are additionally installed. Fig. 9 , 11 As shown, one end of the bracket 214 is connected to the hot air pipe 215, and the other end is bent and extended to be connected to the drying shell 21. Fig. 9 As shown, one end of the hanging rod 227 is connected to the exhaust cap 25 , and the other end is connected to the drying shell 21 .

[0213] The hot air pipe 215 is suspended on the drying shell through the bracket 214, and the wind shield is connected to the hot air pipe, and the hot air pipe supports the wind shield to be suspended in the port of the drying drum. It can be understood that the hot air pipe and the wind shield do not affect the rotation of the drying drum.

[0214] The exhaust cap 25 is sleeved on the material guide cylinder 24 under the support of the hanging rod 227. It can be understood that the exhaust cap does not affect the rotation of the material guide cylinder following the drying cylinder.

[0215] like Fig. 9 , 10 As shown, the exhaust port 251 of the exhaust cap 25 is equipped with a blocking net 252. The blocking net 252 prevents debris from falling into the exhaust cap.

[0216] It should be noted that the hot air in the drying drum enters the exhaust cap through the guide barrel and is then discharged through the exhaust port on the exhaust cap. It is understandable that the exhaust cap can separate the tea leaves from the hot air. The tea leaves are discharged from the discharge port at the bottom of the exhaust cap, and the hot air is discharged from the exhaust port.

[0217] According to the above embodiment, the working mode of the dryer of the present invention is as follows:

[0218] The hot air pipe 215 introduces hot air into the drying drum 22 to preheat the drying drum. The preheating time may be 10 to 30 minutes.

[0219] The tea leaves to be dried are put into the feeding mechanism 200, and the feeding mechanism 200 unloads the tea leaves from the feeding port 226 into the drying cylinder 22. The multiple deblocking guide bars in the drying cylinder 22 extend in a spiral distribution. When the multiple deblocking guide bars push the tea leaves to the guide cylinder 24, the tea leaves continue to move under the action of the multiple deblocking guide bars and can be lifted up to move. After moving to a certain height, the tea leaves fall down again under the action of their own weight, and can also collide with the tea leaves in the drying cylinder during rotation, so as to deblock the tea leaves in clumps and blocks, so that the tea leaves are fully loosened, thereby improving the drying efficiency and the drying quality of the tea leaves. The tea powder generated during the drying process is filtered through the screen cylinder 222 and falls into the collection basket under the drying cylinder to realize the recycling of the tea powder.

[0220] The multiple deblocking guide bars push the tea leaves in the drying drum to the guide cylinder 24, and the guide cylinder 24 sends the tea leaves into the exhaust cap 25. The tea leaves fall to the discharge mechanism 201 through the discharge port of the exhaust cap 25, and the hot air is discharged from the exhaust port 251 at the top of the exhaust cap 25. The discharge mechanism 201 pushes the tea leaves to the next processing step.

[0221] In some optional embodiments, a structure of a crushing device is provided. Figures 17 to 25As shown, the crushing device includes a multi-stage screen 38, a sealing plate 332, a guide plate 317, a partition 323, a rotating drum 32, a screen distance adjusting member 330, a cover body 31, a locking mechanism 329, a driving mechanism and a hopper 35. The multi-stage screen 38 includes a fixed edge plate 385, a moving edge plate 384 and a multi-stage screen. The multi-stage screen is a concave arc mesh structure, one side of which is connected to the fixed edge plate 385 and the other side is connected to the moving edge plate 384. The fixed edge plate 385 is fixedly installed on one side of the support frame 316, and the moving edge plate 384 is movably overlapped on the other side of the support frame 316. The two ends of the multi-stage screen are respectively attached to a sealing plate 332, and the sealing plate 332 is installed on the support frame 316. The guide plate 317 is installed at the bottom of the multi-stage screen. A partition 323 is provided between two adjacent screening nets on the outer side of the multi-stage screen, and the partition 323 extends and connects to the guide plate 317. The two ends of the drum 32 are provided with a rotating shaft 310, and the multi-stage screen is partially inserted. Each rotating shaft 310 is installed on the support frame 316 through a drum distance adjusting member 328, and the drum 32 is provided with multiple grades of crushing parts corresponding to the multi-stage screen along the longitudinal circumferential surface. One end of the screen distance adjusting member 330 is installed on the support frame 316, and the other end is connected to the moving side plate 384. One end of the cover body 31 is hinged to the support frame 316, and the other end is provided with a strap 333. When the cover body 31 is movably buckled on the drum 32, the strap 333 is overlapped with the moving side plate 384. One end of the locking mechanism 329 is hinged to the support frame 316, and the other end is movably locked to the strap 333 and the moving side plate 384 on the support frame 316. The driving mechanism is in transmission connection with a rotating shaft 310 ; the hopper 35 is mounted on one end of the cover body 31 ; wherein a sealing plate 332 away from the hopper 35 is provided with a zero-stage outlet 334 .

[0222] In order to facilitate the centralized delivery of the tea leaves discharged from the zero-stage outlet 334, a zero-stage discharge member 335 is additionally installed. Fig.19 As shown, one end of the zero-stage discharge member 335 is installed at the zero-stage outlet 334, and the other end extends downwardly obliquely relative to the support frame 316. Tea leaves fall from the multi-stage screen 38 through the discharge port into the zero-stage discharge member 335, and the zero-stage discharge member 335 guides the tea leaves outward.

[0223] A structure of the driving mechanism includes a driving motor 315, a driving shaft 314, a driven wheel 312 and a driving wheel 313. The driving motor 315 is provided with a driving shaft 314, the driving wheel 313 is key-connected with the driving shaft 314, the driven wheel 312 is key-connected with a rotating shaft 310, and the driving wheel 313 is transmission-connected with the driven wheel 312.

[0224] A transmission connection mode between the driving wheel 313 and the driven wheel 312: the driving wheel 313 and the driven wheel 312 are connected by transmission through the transmission member 311. The transmission member 311 can be a transmission belt or a transmission chain. When the transmission member is a transmission belt, the driving wheel 313 and the driven wheel 312 are both pulleys. When the transmission member 311 is a transmission chain, the driving wheel 313 and the driven wheel 312 are both sprockets.

[0225] It should be noted that U-shaped grooves are provided on both ends of the cover body 31 corresponding to the rotating shaft 310 , and the two ends of the cover body are sleeved on the rotating shaft through the U-shaped grooves.

[0226] It is understandable that the hopper 35 is communicated with the inner side of the cover body 31. The tea leaves in the hopper can fall into the interval space between the drum and the cover body.

[0227] like Fig.17 As shown, in order to facilitate the control of the tea leaves in the hopper 35 falling into the interval space between the rotating drum and the cover body, a feed pipe 37 and a feed control valve 36 are additionally installed. One end of the feed pipe 37 is connected to the inner side of the cover body 31, and the other end is connected to the hopper 35 through the feed control valve 36. When the feed control valve 36 is in an open state, the tea leaves in the hopper fall into the interval space between the rotating drum and the cover body. When the feed control valve 36 is in a closed state, the tea leaves in the hopper stop falling into the interval space between the rotating drum and the cover body. It can be understood that the feed control valve 36 can adjust the amount of tea leaves falling by the size of the opening.

[0228] A structure of the feed control valve 36 includes a first valve plate, a second valve plate, a pad and a plug plate. The first valve plate and the second valve plate are provided with 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 pads are installed in parallel and at intervals between the first valve plate and the second valve plate. A through groove is formed between the two pads and the first valve plate and the second valve plate, and the plug plate is movably inserted into the through groove. When the plug plate is inserted into the through groove to block the discharge port, the tea leaves in the hopper stop falling. When the plug plate is pulled out, the discharge port is connected to the feed pipe, and the tea leaves fall from the discharge hopper into the feed pipe.

[0229] It should be noted that the backing plate is placed on the edges of the first valve plate and the second valve plate. The backing plate, the first valve plate and the second valve plate can be fixedly connected by a plurality of bolts.

[0230] Another structure of the feed control valve 36 may be a gate valve. Further, the feed control valve may be an electric gate valve.

[0231] The drum distance adjusting member 328 supports the installation of the drum and can also be used to adjust the distance between the drum and the multi-stage screen, thereby adjusting the distance between multiple levels of crushing elements and the multi-stage screen.

[0232] The screen distance adjusting member 330 is used to adjust the interval between the multi-stage screen and the drum, thereby adjusting the interval between the multi-stage screen and multiple levels of crushing elements, and crushing tea pieces and powdered tea pieces of different particle sizes. Figure 1-3 As shown, the number of screen mesh distance adjusting members that can be installed is 1, 2 or 3, etc. Of course, an appropriate number of screen mesh distance adjusting members can also be installed according to the length of the multi-stage screen mesh.

[0233] The locking mechanism 329 is used to lock and fix the lap plate 333 and the moving side plate to the support frame 316. When the locking state of the locking mechanism is released, the lap plate can be separated from the moving side plate, and the cover body 31 can be opened. When the locking mechanism is in the locking state, the locking mechanism locks and fixes the lap plate 333 and the moving side plate 384 to the support frame 316. It is understandable that the number of locking mechanisms that can be installed is 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 body.

[0234] A structure of graded crushed pieces is given. Fig.17 , 18 As shown, the graded crushing pieces include first-stage crushing pieces 33 , second-stage crushing pieces 34 and third-stage crushing pieces 331 . The third-stage crushing pieces 331 , the second-stage crushing pieces 34 and the first-stage crushing pieces 331 are sequentially distributed along the longitudinal direction on the rotating drum 32 . The third-stage crushing pieces 331 correspond to the hopper 35 .

[0235] The multiple levels of crushed pieces on the drum 32 correspond to the multi-level screens. The multi-level screens may include a first-level screen 383, a second-level screen 382, ​​and a third-level screen 381. The third-level screen 381 corresponds to the third-level crushed piece 331. The second-level screen 382 corresponds to the second-level crushed piece 34. The first-level screen 383 corresponds to the third-level crushed piece 33.

[0236] It should be noted that the third-level crushing piece is used as the starting crushing point, and the third-level screen can filter out the powder and fine tea leaves mixed in the tea leaves. It can be understood that the largest level in the crushing grade corresponds to the hopper and is used as the starting crushing point.

[0237] like Figure 17-19 As shown, the partition 323 separates adjacent sieves to prevent the tea leaves, broken tea leaves and powder sieved from adjacent sieves from mixing with each other.

[0238] A third-stage outlet 318 is formed between the third-stage screen 381 , the partition plate 323 and the material guide plate 317 . The third-stage outlet 318 is provided with a third-stage discharge member 319 . The third-stage discharge member 319 collects the material discharged from the third-stage outlet.

[0239] A second-stage outlet 321 is formed between the second-stage screen 382 , the partition plate 323 and the guide plate 317 . A second-stage discharge member 322 is installed at the second-stage outlet 321 . The second-stage discharge member 322 collects the material discharged from the second-stage outlet.

[0240] A first-stage outlet 324 is formed between the first-stage screen 383 , the partition plate 323 and the material guide plate 317 . The first-stage outlet 324 is provided with a first-stage discharge member 325 . The first-stage discharge member 325 collects the material discharged from the first-stage outlet.

[0241] A zero-stage outlet 334 is formed on the sealing plate 332 away from the hopper 35 , and a zero-stage discharge member 335 is installed at the zero-stage outlet 334 .

[0242] It should be noted that the particle sizes of tea leaves screened out in the third, second, first and zeroth levels increase in sequence. It is understandable that the method is not limited to four levels, and multiple levels can be set according to production needs.

[0243] The mesh number of the third-level screen can be 80 mesh to 120 mesh. The mesh numbers that can be selected are 80, 90, 100, 110 or 120 mesh.

[0244] The mesh number of the second-stage screen can be 30 mesh to 50 mesh. The mesh numbers that can be selected are 30, 40 or 50 mesh.

[0245] The mesh size of the first-stage screen can be 15 to 25 meshes. The mesh sizes that can be selected are 15, 20 or 25 mu, etc.

[0246] It is understandable that the third-stage sieve, the second-stage sieve, and the first-stage sieve are not limited to the mesh sizes listed above, and appropriate mesh sizes can be selected according to production requirements.

[0247] like Fig.17 , 18 As shown, a structure of the third-stage crushing member. The third-stage crushing member 331 is spirally installed on the rotating drum 32. The third-stage crushing member with a spiral structure can not only crush the tea leaves, but also push the materials on the multi-stage screen to move.

[0248] It should be noted that the third-stage crushing element can be a belt-type spiral sheet. The thickness of the spiral sheet can be 10 to 20 mm, and the optional thickness is 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 sheet can be 10 to 20 mm. The optional width can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm or 20 mm.

[0249] like Fig.17 , 18As shown, the second-stage crushing element 34 includes a plurality of second-stage crushing rods, which are circumferentially distributed on the circumferential surface of the drum 32 at intervals, and each second-stage crushing rod intersects with the axis of the drum 32, and the angle formed by the intersection is α, 0<α≤30°. The angle α can be selected from 5°, 10°, 15°, 20°, 25° or 30°, etc.

[0250] When a plurality of second-stage crushing rods are distributed and installed along the circumferential surface of the rotating drum, a spiral structure is formed. The plurality of second-stage crushing rods crush the tea leaves and push the materials on the multi-stage screens to move.

[0251] like Fig.17 , 18 As shown, the first-stage crushing element 33 includes a plurality of first-stage crushing rods, which are circumferentially distributed on the circumferential surface of the drum 32 at intervals, and each first-stage crushing rod intersects with the axis of the drum 32, and the angle formed by the intersection is β, 5°≤β≤50°. The angle β can be 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45° or 50°, etc.

[0252] The first stage crushing rod and the second stage crushing rod are arranged on the rotating drum in an intersecting manner, and the first stage crushing rod and the second stage crushing rod are arranged in a staggered manner.

[0253] The height of the first-stage crushing rod and the second-stage crushing rod can be 10-20 mm, and the optional height can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm or 20 mm, etc.

[0254] The width of the first-stage crushing rod and the second-stage crushing rod can be 10-20 mm. The optional width can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm or 20 mm.

[0255] It should be noted that the direction extending from the hopper to the zero-level discharge piece on the rotating drum is sequentially distributed with the third-level crushing pieces in the form of spiral blades, the second-level crushing pieces in the form of long rods, and the first-level crushing pieces in the form of short rods. The spiral blades can push the tea leaves falling from the hopper to be evenly distributed while pushing the tea leaves forward, avoiding local overload, preventing blockage, and improving the crushing efficiency. The second-level crushing pieces in the form of long rods and the third-level crushing pieces in the form of short rods further break up the tea leaves, increase the contact between the tea leaves and the graded crushing pieces and the multi-stage screens, which can not only make the crushing more uniform, but also speed up the crushing speed. It can be understood that the graded crushing pieces of the present invention can improve the crushing efficiency and uniformity, reduce blockage and reduce energy consumption, extend the life of the equipment, and improve product quality.

[0256] like Fig.17As shown, the discharged broken tea leaves and tea powder can be transported by a conveyor 320. The first-stage outlet 324, the second-stage outlet 321, and the third-stage outlet 318 can each 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 conveyor, that is, the conveyor belt of the conveyor corresponds to 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 transported in a straight line on the conveyor belt, spaced from each other, and do not interfere with each other.

[0257] In some optional embodiments, a structure of the drum distance adjusting member is provided. Fig. 20 As shown, the drum distance adjusting member 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 hingedly connected to the support frame 316, and the other end extends downwardly in an inclined manner; the first limiting plate 3285 is connected to the other end of the support plate 3283; the second bolt 3282 is threadedly penetrated 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 is provided with an arc-shaped adjustment slot 32871; the first bolt 3286 penetrates the adjustment slot 32871; the bearing seat 3284 is installed on the support plate 3283, and is used to support and install the rotating shaft 310.

[0258] like Figure 18-20 As shown, the support plate 3283 is installed on the support frame 316 at an angle.

[0259] The second bolt 3282 is threadedly passed through the first limiting plate 3285 and is threadedly connected to the support frame 316. The second limiting plate 3285 is installed on the side of the first limiting plate, and the first bolt 3286 is threadedly passed through the adjustment slot 32871 and is threadedly connected to the support frame 316.

[0260] 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 support frame 316 .

[0261] The working method of the drum distance adjusting member for adjusting the drum is as follows: screw the second bolt 3282 to disengage the support frame 316, and then loosen the first bolt 3286. At this time, the first limit plate 3285, the second limit plate 3287, and the support plate 3283 can all move. That is, the adjustable drum 32 can move relative to the multi-stage screen, so that the drum distance adjusting member can adjust the drum. After adjusting to the required interval, the first bolt 3286 and the second bolt 3282 are tightened and fixed.

[0262] It should be noted that when the drum is adjusted, the distance between the drum and the side of the multi-stage screen close to the grade outlet is adjusted. When the support plate 3283 is swung downward for adjustment, the distance between the drum 32 and the multi-stage screen becomes smaller. When the support plate 3283 is swung upward for adjustment, the distance between the drum 32 and the multi-stage screen increases. It is understandable that when the distance between the drum and the multi-stage screen changes, the distance between the multiple grade crushing pieces and the multi-stage screen changes accordingly. The smaller the distance between the grade crushing pieces and the multi-stage screen, the smaller the particles of the tea powder or broken tea obtained by crushing. The larger the distance between the grade crushing pieces and the multi-stage screen, the larger the particles of the tea powder or broken tea obtained by crushing.

[0263] like Fig. 20 As shown, a hinge connection structure of the support plate 3283 is provided, and a shaft sleeve 3281, a support seat 39 and a support shaft 391 are additionally installed. The support plate 3283 is provided with a shaft sleeve 3281, the shaft sleeve 3281 is provided with a shaft hole 32811, the support seat 39 is provided with a support shaft 391 and is installed on the support frame 316, and the support shaft 391 is penetrated by the shaft hole 32811.

[0264] 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 through the support shaft 391 .

[0265] The adjusting slot 32871 is in an arc-shaped structure, which can correspond to the arc-shaped trajectory of the swing of the support plate. Therefore, when the support plate needs to swing, the first bolt 3286 and the second limit plate 3287 do not hinder the swing of the support plate.

[0266] In some optional embodiments, a structure of the screen distance adjusting member is provided. Fig. 22 As shown, the screen distance adjusting member 330 includes a bottom plate 3305, a threaded barrel 3303, a snap ring 3304, a limiting boss 3306 and a push-pull screw 3302. One end of the bottom plate 3305 is mounted on the support frame 316, and the other end extends outward relative to the support frame 316 and is connected to the vertical plate 3307, and the vertical plate 3307 is provided with a U-shaped groove 33071; the threaded barrel 3303 is penetrated with the U-shaped groove 33071; the snap ring 3304 is installed at one end of the threaded barrel 3303; the limiting boss 3306 is installed at the other end of the threaded barrel 3303; the push-pull screw 3302 is penetrated with the limiting boss 3306, the threaded barrel 3303, and the snap ring 3304 in sequence, and is threadedly connected with the threaded barrel 3303.

[0267] The threaded barrel 3303 is placed in the U-shaped groove 33071, and the two ends are respectively provided with a limiting boss 3306 and a snap ring 3304, which limit the threaded barrel 3303 on the vertical surface of the U-shaped groove 33071. That is, the threaded barrel 3303 is clamped on the vertical plate 3307 by the limiting boss 3306 and the snap ring 3304 in its longitudinal direction.

[0268] In order to facilitate the screwing of the threaded barrel 3303, a handle 3301 is additionally installed, and the handle 3301 is connected to the limiting boss 3306. When the handle 3301 is screwed, the handle 3301 drives the limiting boss 3306 to rotate, and the limiting boss 3306 drives the threaded barrel 3303 and the clamping ring 3304 to rotate, and the limiting boss 3306 and the clamping ring 3304 prevent the threaded barrel from moving relative to the vertical plate, and the threaded barrel 3303 is threadedly connected with the push-pull screw 3302, and the push-pull screw 3302 moves relative to the threaded barrel 3303, and the push-pull screw 3302 is connected with the moving side plate 384, and drives the moving side plate 384 to move, and the moving side plate 384 drives the multi-stage screen to move, so as to adjust the spacing of the multi-stage screen relative to the rotating drum, and then the spacing between the grade crushing parts on the rotating drum and the multi-stage screen can be adjusted, so as to change the particle size of the crushed tea leaves.

[0269] In some optional embodiments, a structure of a locking mechanism is provided. Fig.21 As shown, the locking mechanism 329 includes a swing rod 3295, a support sleeve 3297 and a top screw 3291. Both ends of the swing rod 3295 are bent structures, one end is installed with a threaded sleeve 3294, and the other end is installed with a rotating shaft 3296; the support sleeve 3297 is sleeved on the rotating shaft 3296 and installed on the support frame 316; the top screw 3291 is bolted with a threaded sleeve 3294.

[0270] The two ends of the swing rod 3295 are bent, which can facilitate the swing rod to swing and engage between the lap plate and the movable side plate.

[0271] The rotating shaft 3296 can rotate relative to the supporting sleeve 3297 , and the swing rod 3295 can swing relative to the supporting sleeve 3297 through the rotating shaft 3296 .

[0272] The top screw rod 3291 is threadedly connected with the threaded sleeve 3294. The top screw rod is screwed clockwise to screw into the threaded sleeve. The top screw rod is screwed counterclockwise to screw out of the threaded sleeve.

[0273] During operation, the cover 31 is buckled onto the rotating drum 32, the lap plate 333 overlaps the moving side plate 384, the swing rod 3295 is driven to swing and engage with the lap plate and the moving side plate, the threaded sleeve is perpendicular to the lap plate 333, the supporting screw 3291 is screwed, the supporting screw 3291 is screwed into the threaded sleeve 3294 and moves and extends toward the lap plate 333, the supporting screw is screwed to press against the lap plate, at this time, the supporting screw presses the lap plate and the moving side plate against the support frame 316. The locking mechanism fixes the cover to the support frame.

[0274] When the cover needs to be opened, the top screw 3295 is loosened, the top screw 3295 is separated from the lap plate 333, and the swing rod 3295 is pushed, and the top screw and the threaded sleeve can follow the swing and deviate from the lap plate, releasing the locking state of the locking mechanism, and the cover can be opened.

[0275] A driving structure of the top screw is provided, and a lever 3292 and an anti-slip plate 3293 are additionally installed. The lever 3292 penetrates the end of the top screw 3291 away from the threaded sleeve 3294, and anti-slip plates 3293 are installed at both ends.

[0276] Anti-slip plates are provided at both ends of the lever to prevent the lever from being detached from the supporting screw.

[0277] One structure of the anti-slip plate may be a circular plate. It is understandable that the diameter of the circular plate is larger than the diameter of the through hole on the top screw for penetrating the lever. The circular plate prevents the lever from detaching from the top screw.

[0278] like Figure 17-19 As shown, a longitudinal support member 326 and a vertical support 327 are additionally installed on the support frame 316. Both ends of the longitudinal support member 326 are installed on the support frame 316 through the vertical support 327. A gap is formed between the bottom of the longitudinal support member 326 and the support frame 316, which can provide space for the swing rod 3295 to swing downward. The support sleeve 3297 is installed on the longitudinal support member 326.

[0279] According to the above embodiment, the pulverizing device of the present invention works as follows:

[0280] The tea leaves to be crushed are put into the hopper 35, and enter the space formed by the cover 31, the drum 32 and the multi-stage screen through the hopper 35. The third-stage crushing parts 331 evenly distribute the fallen tea leaves, push them forward and crush them. The third-stage crushing parts squeeze the tea leaves on the third-stage screen 381 to grind and crush the tea leaves. The powder obtained by crushing is filtered through the third-stage screen, and the powder falls into the guide plate 317 and falls into the third-stage discharge part 319 from the third-stage outlet 318. The third-stage discharge part 319 guides the tea powder outward for discharge.

[0281] The third-stage crushing parts 331 push the tea materials to the second-stage crushing parts 34, which break up and distribute the pushed tea materials again and push them to the first-stage crushing parts, and the second-stage crushing parts 34 squeeze the tea materials on the second-stage screen 382 and grind and cut them into the first kind of broken tea, which are filtered by the second-stage screen 382 and fall into the guide plate 317, and the guide plate 317 guides the first kind of broken tea to the second-stage outlet 321, and the second-stage outlet 321 discharges the first kind of broken tea into the second-stage discharge part 322, and the second discharge part 322 discharges the first kind of broken tea outward.

[0282] The second-stage crushing parts 34 push the tea material to the first-stage crushing parts 33, the first-stage crushing parts 33 break up the tea material again and push it to the zero-stage outlet 334, the first-stage crushing parts 33 squeeze the tea material to the first-stage screen 383 and grind it into the second kind of broken tea, the first-stage screen 383 filters out the second kind of broken tea, the second kind of broken tea falls into the guide plate, the guide plate guides the second kind of broken tea to the first-stage outlet 324, the first-stage outlet 324 guides the second kind of broken tea into the first discharge part 325, and the first discharge part 325 discharges the second kind of broken tea outward.

[0283] The first-stage crushing element 33 pushes the remaining tea leaves to fall into the zero-stage outlet 334 provided on the sealing plate 332, and the tea leaves fall into the zero-stage discharge element 335 through the zero-stage outlet 334. The zero-stage discharge element 335 discharges the remaining tea leaves as tea stems.

[0284] The distance between the rotating drum and the multi-stage screen can be adjusted by the rotating drum distance adjusting member and the screen distance adjusting member, so that the corresponding particle size of broken tea and tea powder can be processed. When the multi-stage screen needs to be adjusted by the screen distance adjusting member, the locking state of the cover body by the locking mechanism can be released first, and the movable side plate 384 can be released from the pressing state, so that the screen distance adjusting member can push and pull the movable side plate to adjust the distance between the multi-stage screen and the rotating drum, and then the locking mechanism can lock the cover body.

[0285] In some optional embodiments, a structure of a killing mechanism is provided. Figure 23-25 As shown, the withering mechanism includes a first tea leaf conveyor 41, a withering shell 418, a withering dehumidification cap 424, a withering drum 441, a withering hot air duct 46, a first tea leaf feed bin 417, a withering unloading trough 423, a first supporting net 422, a first heater 421 and a first bracket 420. The fixing drum 441 is rotatably mounted on the fixing shell 418, the fixing shell 418 is mounted on the fixing support frame 419, the first feeding bin 417 is mounted on one end of the fixing shell 418, the fixing shell 418 is mounted with a fixing dehumidification cap 424 on the other end, a dehumidification pipe 434 is mounted on the top of the fixing dehumidification cap 424, a fixing discharge port is provided at the bottom, one end of the first bracket 420 is placed below the fixing discharge port, a fixing discharge chute 423 is mounted on the top of the first bracket 20, a first supporting net 422 is provided at the bottom of the fixing discharge chute 423, a plurality of first warm air machines 421 are arranged at intervals at the bottom of the first supporting net 422, and the plurality of first warm air machines 421 are mounted on the first bracket 420; one end of the fixing drum 441 is connected to the first tea feeding bin 417, and the other end is inserted into the fixing dehumidification cap 424. The fixing hot air pipe 46 passes through the first tea feeding bin 417 to supply hot air to the fixing drum 441.

[0286] The first tea leaf conveyor 41 can be a commonly used belt conveyor. A plurality of first baffles 44 are installed in parallel and at intervals on the first conveyor belt 42 of the first tea leaf conveyor 41, and a sawtooth-shaped first tooth claw 441 is provided on the top of the first baffle 44. 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, etc.

[0287] It should be noted that when the first tea conveyor conveys tea at an angle, the tea will accumulate on the first baffle 44, and the first claw 441 will grab the tea that falls on the edge of the first baffle, thereby preventing the tea from sliding off and facilitating the first baffle to push the tea upward smoothly.

[0288] In order to prevent the tea leaves on the first conveyor belt from falling from both sides, side baffles 43 are installed on both sides of the first tea leaf conveyor 41 along the conveying direction, and the two side baffles 43 are connected by a reinforcing rod 45. The two side baffles 43 can limit the conveyed tea leaves from moving along the first conveyor belt 42. The number of reinforcing rods 45 installed can be 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10.

[0289] In order to support the first tea leaf conveyor, a first support frame 416 is additionally installed, and the first support frame 416 supports and installs the first tea leaf conveyor.

[0290] In order to facilitate the heat dissipation of the fixing drum, a plurality of heat dissipation areas 435 are arranged in parallel and spaced apart on one end of the fixing shell 418 near the exhaust cap 424, and a plurality of heat dissipation holes 436 are distributed on the heat dissipation area 435. The plurality of heat dissipation holes facilitate the air to enter the fixing shell, so that the air can contact with the fixing drum for heat exchange. Therefore, after the fixing is completed, the fixing hot air pipe 46 stops supplying hot air to the fixing drum, and the fixing drum contacts the external air through the plurality of heat dissipation areas on the fixing shell, which is conducive to the cooling of the fixing drum.

[0291] In order to level and de-block the tea leaves conveyed on the first conveyor belt, a leveling and de-blocking mechanism is additionally installed. The leveling and de-blocking mechanism includes a first leveling drum 48, a leveling rod 49, a leveling drive motor 410, a leveling driving wheel 411, a leveling driving shaft 412, a leveling transmission member 413, a leveling driven wheel 414 and a leveling shaft 415. The two ends of the first leveling drum 48 are respectively rotatably connected with the corresponding side baffles 43, and a plurality of leveling rods 49 are spaced apart on the first leveling drum 48 along the length direction. The leveling drive motor 410 is installed on the side baffle 43, the leveling drive motor 410 is provided with a leveling driving shaft 412, the leveling driving wheel 411 is installed on the leveling driving shaft 412, one end of the leveling shaft 415 is provided with a leveling driven wheel 414, and the other end is transmission-connected with the first leveling drum 48, and the leveling driving wheel 411 and the leveling driven wheel 414 are transmission-connected through the leveling transmission member 413.

[0292] like Fig.23 As shown, in order to facilitate the control of the hot air pipe 46 for fixing the green tea, a first hot air valve 47 is installed on the hot air pipe 46 for fixing the green tea. The first hot air valve 47 can be used to control the hot air pipe 46 for fixing the green tea to supply hot air to the fixing drum and to cut off the hot air.

[0293] like Fig.24 As shown, the dehumidification cap 424 is installed on the dehumidification housing 418 through the supporting rod 439. The dehumidification cap 424 is sleeved on the dehumidification drum and does not affect the rotation of the dehumidification drum.

[0294] like Fig.23 , 24 As shown, the dehumidification pipe 434 on the dehumidification cap 424 discharges moisture outward by pulling. The dehumidification cap 424 adopts the chimney principle, and the water vapor collected in the dehumidification cap is naturally drawn through the ventilation pipe above to play a dehumidification function.

[0295] A rotating structure of the fixing drum includes a first auxiliary wheel 452, a second auxiliary wheel 443, a fixing driven wheel 451, a first rolling wheel 442, a fixing driving motor 445, a fixing driving wheel 446, a fixing transmission member 447, a fixing driven wheel 448, a fixing driving shaft 449, a first driving roller 450 and a fixing driven wheel 451. The fixing driven wheel 451 is installed at one end of the fixing drum 441 near the fixing moisture discharge cap 424, and the first rolling wheel 442 is installed at the other end. The first auxiliary wheel 452 is installed at one side of the bottom of the first rolling wheel 442, and the first driving roller 450 is installed at the other side. The first fixing driven wheel 448 is installed at one end of the fixing driving shaft 449, and the other end is connected to the first rolling wheel 450. The output shaft of the fixing driving motor 445 is provided with a fixing driving wheel 446 , and the fixing driving wheel 446 is connected to the first fixing driven wheel 448 through a fixing transmission member 447 .

[0296] The first driving roller 450 and the first auxiliary wheel 452 are each mounted on the fixing support frame 419 through a first support 444. The first driving roller 450 and the first auxiliary wheel 452 are both rotatably mounted on the first support 444.

[0297] Second auxiliary wheels 443 are installed on both sides of the bottom of the second finishing driven wheel 451, and the two second auxiliary wheels 443 support the second finishing driven wheel 451 to rotate.

[0298] like Fig.24 As shown, an extension tube 440 is installed on the killing cylinder, and the extension tube 440 is inserted into the killing moisture-removing cap 424.

[0299] The working mode of the fixing drum is as follows: the fixing driving motor 445 drives the fixing driving wheel 446 to rotate, the fixing driving wheel 446 drives the first fixing driven wheel 448 to rotate through the fixing transmission member 447, the first fixing driven wheel 448 drives the fixing driving shaft 449 to rotate, the fixing driving shaft 449 drives the first driving roller 450 to rotate, and the first driving roller 450 drives the first rolling wheel 442 to rotate. The first rolling wheel 442 drives the fixing drum 441 to rotate, and the two second auxiliary wheels 443 support the second fixing driven wheel 451 to rotate.

[0300] In order to check the killing status in the killing drum, the first screw 425, the first nut 426, the first support rod 427, the first cover 428, the first observation port 429, the second support rod 430, the second screw 431 and the second nut 432 are additionally installed. The killing and dehumidification cap 424 is provided with a first observation port 429, the first cover 428 is covered on the first observation port 429, the first cover 428 is provided with a first support rod 427 at one end, the first support rod 427 is provided with a first through hole, the first support rod 427 is sleeved on 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, and the first screw 425 is fixed to the killing and dehumidification cap 424. The second screw 431 is installed on the killing and dehumidification cap 424. The other end of the first cover 428 is provided with a second support rod 430. The second support rod 430 is provided with a slot 433. The second support rod 430 is engaged and connected with the second screw 431 through the slot 433. The second nut 432 is threadedly connected with the second screw 431 and squeezes and fixes the second support rod 430.

[0301] The first nut 426 and the second nut 432 are tightened, the first nut 426 squeezes and fixes the first support rod 427 , the second nut 432 squeezes and fixes the second support rod 430 , and the first support rod 427 and the second support rod 430 squeeze and fix the first cover 428 to the first observation port 429 .

[0302] Loosen the first nut 426 and the second nut 432. The first nut 426 releases the squeezing and fixing of the first support rod 427. The second nut 432 releases the squeezing and fixing of the second support rod 430. The second support rod 430 can be swung away from the second screw rod 431. The first support rod 427 can be swung relative to the first screw rod 425. The first cover 428 can be swung away from the first observation port 429. The first observation port 429 is open, and the killing condition of the killing roller can be checked through the first observation port 429.

[0303] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. A method for processing machine-picked old leaf green tea, characterized in that: The processing method comprises the following steps: S1: Picking old tea leaves, using a tea picking machine to pick old tea leaves; S2: killing the old tea leaves by hot air, the hot air temperature is 180℃~300℃, after killing the tea leaves, the moisture content of the tea leaves is 50%~60%; S3: rolling, transferring heat from the withered tea leaves obtained in S2 to a rolling part, supplying hot rolling air to the rolling part while the withered tea leaves are rolled on the rolling part, the hot rolling air temperature is 30°C to 60°C, the rolling time is 30min to 60min, and the rolled tea leaves are ready for use; S4: drying, transferring the rolled tea leaves from S3 to a dynamic drying part, screening and filtering out powdered tea during dynamic drying, the drying temperature is 80°C to 130°C, after drying, the moisture content of the tea leaves is 5% to 10%, and the dried tea leaves are ready for use; S5: Crushing: The dried tea leaves from S4 are transferred to the crushing part. The crushing part receives the dried tea leaves and evenly distributes them, promoting multi-stage crushing of the dried tea leaves to form powdered tea, broken tea and tea stems of different grades.

2. A device used in the method for processing machine-picked old leaf green tea according to claim 1, characterized in that: include The tea-tea-fixing mechanism (4) uses hot air to directly contact the tea leaves for heating and fixing, and the generated moisture is pushed outward by the hot air; A rolling machine (1), one end of which is connected to a fixing mechanism (4), and the rolling machine (1) adopts hot rolling; A drying machine (2), wherein the drying machine is a drum-type dynamic drying machine, one end of which is connected to the other end of the kneading machine (1); and A crushing device (3) is connected to the other end of the drying machine (2), and the crushing device (3) can produce tea stems, broken tea of ​​multiple grades, and powdered tea of ​​multiple grades.

3. The machine-picked old leaf green tea processing device according to claim 2, characterized in that: The kneading machine (1) comprises A kneading workbench (11), wherein a plurality of kneading disks (12) are provided on the kneading workbench; A tea leaf guiding barrel (136), each kneading disc (12) is connected to a tea leaf guiding barrel (136), the tea leaf guiding barrel (136) is equipped with a tea leaf moving mechanism for pushing tea leaves toward the kneading disc (12), and each tea leaf guiding barrel is also equipped with a hot air mechanism; A kneading movable plate, wherein the kneading movable plate is connected to the kneading workbench via at least three swinging mechanisms, and a kneading pressure mechanism is installed on the kneading movable plate corresponding to a kneading disk (12), wherein at least two of the swinging mechanisms are respectively connected to a kneading drive motor (110) in a transmission manner, and at least two of the swinging mechanisms drive the kneading movable plate to swing, and the kneading pressure mechanism cooperates with the kneading disk to knead the tea leaves; A discharging and deblocking mechanism, each kneading disk (12) is provided with a discharging port (121), and the discharging port (121) is equipped with a discharging and deblocking mechanism; and A tea leaf rolling conveyor (15) is installed at the bottom of the rolling workbench and is used to collect and convey the tea leaves discharged by the unloading and deblocking mechanism.

4. The machine-picked old leaf green tea processing device according to claim 3, characterized in that: The unloading and deblocking mechanism comprises A blade-leveling and de-agglomerating cylinder (1441), wherein the blade-leveling and de-agglomerating cylinder (1441) is vertically installed at a distance from the bottom of the discharge port (121); A blade leveling deblocking shaft (1444), wherein the blade leveling deblocking shaft (1444) is disposed in the blade leveling deblocking cylinder (1441), and both ends are rotatably connected to the blade leveling deblocking cylinder (1441), and a plurality of deblocking rods (1445) are distributed at intervals on the circumferential side surface along the axial direction; a deblocking drive motor (1438), wherein the deblocking drive motor (1438) is installed on the leaf leveling deblocking cylinder (1441) and is drivingly connected to the leaf leveling deblocking shaft (1444); and A capping mechanism is movably disposed between the discharge port (121) and the leaf-leveling and block-disintegrating cylinder (1441), and the discharge port can be opened and closed.

5. The machine-picked old leaf green tea processing device according to claim 4, characterized in that: The capping mechanism comprises A first limit seat (1431), wherein the first limit seat (1431) is equipped with a first limit sensor (1432); A second limit seat (1435), wherein the second limit seat (1435) is provided with a second limit sensor (1436) and is spaced apart from the first limit seat (1431); A sealing plate (1434), wherein one end of the sealing plate (1434) is provided with a touch rod (1433) and the other end is provided with a swing rod (1437); and A sealing plate driving motor (1447), wherein the sealing plate driving motor (1447) is drivingly connected to the swing rod (1437); The sealing plate driving motor (1447) drives the swing rod (1437) to swing, and the sealing plate (1434) drives the touch rod (1433) to swing between the first limit seat (1431) and the second limit seat (1435).

6. The machine-picked old leaf green tea processing device according to claim 2, characterized in that: The tea leaf shifting machine comprises a tea leaf shifting plate (141), one end of which is rotatably connected to the kneading workbench (11) via a fourth support shaft (142); as well as A third swing arm (139), one end of which is connected to the kneading movable plate (117), and the other end of which is rotatably connected to the tea leaf shifting plate (141) via a third support shaft (140).

7. The machine-picked old leaf green tea processing device according to claim 2, characterized in that: The drying machine (2) comprises A drying cylinder (22), the drying cylinder (22) being rotatably mounted on a support frame (212), and the drying cylinder (22) being provided with a plurality of screen cylinders (222) at intervals along the length direction, and a plurality of deblocking guide strips (224) being distributed at intervals on the inner side surface of the drying cylinder (22), and the plurality of deblocking guide strips extending in a spiral distribution; A windshield (225), the windshield (225) being suspended at one end of the drying cylinder (22) and connected to the hot air pipe (215), and the windshield (225) being provided with a feed port (226), and the feed port (226) being connected to the feed mechanism (200); A material guide cylinder (24), one end of which is connected to the other end of the drying cylinder (22); An exhaust cap (25), the exhaust cap (25) is suspended and sleeved on the other end of the material guide tube (24), the top of the exhaust cap (25) is provided with an exhaust port (251), and the bottom of the exhaust cap (25) is provided with a discharge port; A discharge mechanism (201), the discharge mechanism (201) being connected to the discharge port; A collecting basket (213), a collecting basket is movably mounted at the bottom of each screen cylinder (222); A drying shell (21), the drying shell (21) covers the drying cylinder (22) and is installed on the top of the support frame (212); and A transmission mechanism is in transmission connection with the drying cylinder (22).

8. The machine-picked old leaf green tea processing device according to claim 7, characterized in that: The unloading mechanism (201) comprises a base frame (2017); A discharge chute (2011), wherein the top of the discharge chute (2011) is open, one end is closed, and the other end is open and connected to a second discharge chute (2028); the discharge chute (2011) is connected to the base frame (2017) via at least four second elastic plates (2013), and the second elastic plates (2013) are installed in an inclined manner; An air supply duct (2016), wherein the air supply duct (2016) is placed at the bottom of the discharge chute (2011), one end of the air supply duct is mounted on the top support frame (2018), and the other end of the air supply duct is mounted on the bottom frame (2017); A blower (2012), wherein the blower (2012) is installed in the air supply duct (2016); and A second propulsion mechanism, wherein the second propulsion mechanism is transmission-connected to the discharge chute (2011).

9. The machine-picked old leaf green tea processing device according to claim 2, characterized in that: The pulverizing device (3) comprises A multi-stage net (38), the multi-stage net (38) comprising a fixed edge plate (385), a movable edge plate (384) and a multi-stage screen, the multi-stage screen presenting a downwardly concave arc-shaped net structure, one side of which is connected to the fixed edge plate (385), and the other side of which is connected to the movable edge plate (384), the fixed edge plate (385) is fixedly mounted on one side of a support frame (316), and the movable edge plate (384) is movably overlapped with the other side of the support frame (316); A sealing plate (332), wherein two ends of the multi-stage screen are respectively attached to a sealing plate (332), and the sealing plate (332) is installed on a support frame (316); A rotating drum (32), wherein 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 on a support frame (316) via a rotating drum distance adjusting member (328), and a plurality of grade crushing members are mounted on a longitudinal circumferential surface of the rotating drum (32) corresponding to the multi-stage screen; A screen distance adjusting member (330), one end of which is mounted on the support frame (316), and the other end of which is drivingly connected to the movable side plate (384); A cover body (31), one end of the cover body (31) is hingedly connected to the support frame (316), and the other end is provided with a strap (333). When the cover body (31) is movably buckled on the rotating drum (32), the strap (333) overlaps the movable side plate (385); A locking mechanism (329), one end of the locking mechanism (329) is hingedly connected to the support frame (316), and the other end of the locking mechanism (329) is movable to lock the strap (333) and the movable side plate (385) to the support frame (316); as well as A driving mechanism is drivingly connected to a rotating shaft (310).

10. The machine-picked old leaf green tea processing device according to claim 9, characterized in that: The screen distance adjusting member (330) comprises A bottom plate (3305), one end of the bottom plate (3305) is mounted on the support frame (316), and the other end of the bottom plate (3305) extends outward relative to the support frame (316) and is connected to a vertical plate (3307), wherein the vertical plate (3307) is provided with a U-shaped groove (33071); A threaded barrel (3303), wherein the threaded barrel (3303) is provided with a U-shaped groove (33071); A snap ring (3304), wherein the snap ring (3304) is mounted on one end of the threaded barrel (3303); A limiting boss (3306), wherein the limiting boss (3306) is installed at the other end of the threaded barrel (3303); and A push-pull screw (3302), wherein the push-pull screw (3302) is sequentially penetrated by a limiting boss (3306), a threaded barrel (3303), and a clamping ring (3304), and is threadedly connected to the threaded barrel (3303); The locking mechanism (329) comprises A swing rod (3295), both ends of the swing rod (3295) are bent structures, one end is installed with a threaded sleeve (3294), and the other end is installed with a rotating shaft (3296); A support sleeve (3297), the support sleeve (3297) is sleeved on the rotating shaft (3296) and installed on the support frame (316); and a top screw rod (3291), the top screw rod (3291) is bolted with a threaded sleeve (3294); The graded crushing pieces include a first-grade crushing piece (33), a second-grade crushing piece (34) and a third-grade crushing piece (331); the third-grade crushing piece (331), the second-grade crushing piece (34) and the first-grade crushing piece (33) are sequentially distributed on the rotating drum (32) in the longitudinal direction; the third-grade crushing piece (331) corresponds to the hopper (35); the third-grade crushing piece (331) is spirally mounted on the rotating drum (32); The second-stage crushing element (34) comprises a plurality of second-stage crushing rods, which are circumferentially distributed on the circumferential surface of the rotating drum (32) at intervals, and each second-stage crushing rod intersects with the axis of the rotating drum (32), and the angle formed by the intersection is α, 0<α≤30°; The first-stage crushing element (33) comprises a plurality of first-stage crushing rods, which are circumferentially distributed on the circumferential surface of the rotating drum (32) at intervals, and each first-stage crushing rod intersects with the axis of the rotating drum (32), and the angle formed by the intersection is β, 5°≤β≤50°.

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