CN110394303A - Efficient tealeaves for tea dry sorting sieves - Google Patents
Efficient tealeaves for tea dry sorting sieves Download PDFInfo
- Publication number
- CN110394303A CN110394303A CN201910796699.XA CN201910796699A CN110394303A CN 110394303 A CN110394303 A CN 110394303A CN 201910796699 A CN201910796699 A CN 201910796699A CN 110394303 A CN110394303 A CN 110394303A
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- screen frame
- sliding block
- sieve
- unit
- driving
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- 240000007524 Camellia sinensis var. sinensis Species 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 241001122767 Theaceae Species 0.000 claims description 21
- 230000000875 corresponding Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 230000001105 regulatory Effects 0.000 claims description 8
- 239000002965 rope Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000001360 synchronised Effects 0.000 claims description 2
- 230000000903 blocking Effects 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000001788 irregular Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 241000429028 Porophyllum Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/526—Cleaning with brushes or scrapers with scrapers
Abstract
The present invention provides a kind of efficient tealeaves sieve for tea dry sorting, including screen frame (unit), screen frame (unit) is connect with the driving device for driving it to move back and forth, at least one screen frame is equipped on screen frame (unit), the hollow part of screen frame is equipped with sieve, by the position of two close end main shaft is respectively equipped in screen frame and from transmission shaft, main shaft is driven by driving device to be rotated, main shaft and from transmission shaft be equipped with sliding block driving wheel, sliding block transmission belt bypasses two sliding block driving wheels, cutter head sliding block is installed on sliding block transmission belt, the blade of cutter head sliding block is contacted with the bottom of sieve.By the way that the reciprocating blade of screen bottom is arranged in, the tealeaves being suspended in the sieve pore of sieve can be cut off, to realize automatic cleaning blocking.Using the program, artificial, the efficient continuous working period of holding tealeaves sieve can be greatly reduced.
Description
Technical field
The present invention relates to Tea Production apparatus field, especially a kind of efficient tealeaves for tea dry sorting is sieved.
Background technique
During tea screening, as shown in Figure 4, since the shape bending of tealeaves is irregular, tealeaves is easy passing through
It when sieve, hangs in sieve pore, so that sieve be caused to block.After blocking, the efficiency of tea screening is greatly reduced.Existing processing side
Formula is to take out screen frame from the side of screen frame (unit), is manually handled with special scraping blade, and efficiency is lower, and labour cost is high, and it is strong to work
It spends higher.Chinese patent literature CN207401726U describes a kind of environment-friendly type automatic block clearing vibrating screen, including shaker body,
Automatic knocking device is installed in the bottom of shaker body, by increased automatic knocking device, is being sieving through vibrating screen
Sieve is beaten in screening in journey, reaches the automatic emery dust removed and be blocked in mesh, it is ensured that vibrating screen efficient operation.But due to
Shape of tea is irregular, and tealeaves hangs over the situation for being difficult to clean off blocking in sieve pore by way of beaing.Chinese patent literature
CN203253633U describes a kind of outstanding anti-blocking automatic cleaning apparatus of sieve, including bracket, and the bracket is equipped with outstanding sieve, described outstanding
Sieve two sides, which are located on bracket, is equipped with baffle, and the baffle side is equipped with beater mechanism.Effectively outstanding sieve can be cleared up,
Outstanding screen blinding plug is prevented, it is time saving and energy saving.Same reason can not preferably solve technical problem present in the application.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of efficient tealeaves sieves for tea dry sorting, can be automatic
The blocking of tealeaves is cleared up, so that it is guaranteed that tealeaves sieve can be continued working with higher efficiency, and can reduce artificial investment.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of efficient tea for tea dry sorting
Leaf sieve, including screen frame (unit), screen frame (unit) are connect with the driving device for driving it to move back and forth, at least one screen frame, sieve are equipped on screen frame (unit)
The hollow part of frame is equipped with sieve, by the position of two close end is respectively equipped with main shaft in screen frame and from transmission shaft, main shaft
It is equipped with sliding block driving wheel by driving device driving rotation, main shaft and from transmission shaft, sliding block transmission belt bypasses two sliding blocks
Driving wheel, is installed with cutter head sliding block on sliding block transmission belt, and the blade of cutter head sliding block is contacted with the bottom of sieve.
In preferred scheme, in the lower section of sieve, multiple guide rods are additionally provided with, the both ends of guide rod are fixedly connected with screen frame, lead
Bar passes through cutter head sliding block, and cutter head sliding block is slidably connected with guide rod.
In preferred scheme, at the top of cutter head sliding block, two blades are hinged with the top of cutter head sliding block respectively, two knives
Tension spring is equipped between piece, so that blade is pressed in the bottom of sieve；
Close to main shaft and from the position of transmission shaft, it is respectively provided with the travel switch of spacing knife head slider position.
In preferred scheme, the sliding block driving wheel is located at the inside of screen frame, and sliding block transmission belt is synchronous belt.
In preferred scheme, be additionally provided with tensioning apparatus on screen frame, tensioning apparatus with from transmission axis connection.
In preferred scheme, it is equipped with the first driving wheel in the end of main shaft, the first driving wheel is located at the outside of screen frame,
First driving wheel is connect by main transmission belt with block clearing motor, and block clearing motor is fixedly mounted on screen frame (unit).
In preferred scheme, the screen frame is arranged as multiple from top to bottom；
The second driving wheel is additionally provided in the end of each screen frame main shaft, between the main shaft of each adjacent screen frame, is passed through
Between centers driving belt interconnects the first adjacent driving wheel or the second driving wheel.
In preferred scheme, the screen frame (unit) is suspended on bracket by hanging steel rope, and hanging steel rope, which is equipped with, to be used
In the regulating device of adjustment length.
In preferred scheme, the driving device structure of driving screen frame (unit) reciprocating motion are as follows: the eccentric pin shaft and screen frame (unit) of eccentric wheel
The central axis of pivot joint, eccentric wheel is connect by transmission mechanism with screening motor；
It is equipped with feed pipe flexible in one end of screen frame (unit), is equipped in the other end of screen frame (unit) corresponding on the sieve of each layer screen frame respectively
Discharge gate, be additionally provided with and discharge gate corresponding under the sieve of lowest level screen frame.
In preferred scheme, the screen frame (unit) is connect by multiple elastics with support, and eccentric electricity is installed on screen frame
Machine；
The axis of the eccentric motor is fixedly connected away from a manner of with eccentric block by adjustable eccentric；
The eccentric motor is speed regulating motor；
It is equipped with feed pipe flexible in one end of screen frame (unit), is equipped in the other end of screen frame (unit) corresponding on the sieve of each layer screen frame respectively
Discharge gate, be additionally provided with and discharge gate corresponding under the sieve of lowest level screen frame.
A kind of efficient tealeaves for tea dry sorting provided by the invention sieves, by the reciprocally fortune that screen bottom is arranged in
Dynamic blade can cut off the tealeaves being suspended in the sieve pore of sieve, to realize automatic cleaning blocking.Using the program,
Artificial, the efficient continuous working period of holding tealeaves sieve can be greatly reduced.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the overall structure diagram of outstanding sieve structure of the invention.
Fig. 2 is the side structure schematic view of screen frame in the present invention.
Fig. 3 is the present invention looks up structural representation of screen frame in the present invention.
Fig. 4 is the partial enlargement side view structural schematic diagram of cutter head sliding block in the present invention.
Fig. 5 is the drive mechanism schematic diagram in the present invention between the main shaft of each screen frame.
Fig. 6 is the overall structure diagram of Structure of Vibrating Screen in the present invention.
In figure: screen frame (unit) 1, screen frame 2, bracket 3, main shaft 4, block clearing motor 5, main transmission belt 6, sliding block transmission belt 7, sliding block
Driving wheel 8, cutter head sliding block 9, guide rod 10, reinforcing rod 11, from transmission shaft 12, the second driving wheel 13, the first driving wheel 14, sieve
15, tealeaves 16, blade 17, tension spring 18, between centers driving belt 19, elastic 20, regulating device 21, hanging steel rope 22, charging
Pipe 23, discharge gate 24, eccentric wheel 25, transmission mechanism 26 sieve motor 27, eccentric motor 28, travel switch 29, tensioning apparatus
30, support 31.
Specific embodiment
In Fig. 1 ~ 6, a kind of efficient tealeaves sieve for tea dry sorting, including screen frame (unit) 1, screen frame (unit) 1 are back and forth transported with its is driven
Dynamic driving device connection is equipped at least one screen frame 2 on screen frame (unit) 1, and the hollow part of screen frame 2 is equipped with sieve 15, in screen frame 2
Main shaft 4 is respectively equipped with by the position of two close end and from transmission shaft 12, main shaft 4 is driven by driving device to be rotated, main biography
Moving axis 4 and from transmission shaft 12 be equipped with sliding block driving wheel 8, sliding block transmission belt 7 bypass two sliding block driving wheels 8, sliding block be driven
Cutter head sliding block 9 is installed on band 7, the blade 17 of cutter head sliding block 9 is contacted with the bottom of sieve 15.Thus structure passes through main transmission
The rotation band dynamic cutter head sliding block 9 of axis 4 moves back and forth, thus with that will hang over sieve 15 by scraping between cutting blade 17 and sieve 15
Sieve pore tealeaves cutting, to realize the automatic blocking for removing sieve.
Preferred scheme such as Fig. 2, in 3, in the lower section of sieve 15, multiple guide rods 10, the both ends of guide rod 10 and sieve are additionally provided with
Frame 2 is fixedly connected, and guide rod 10 passes through cutter head sliding block 9, and cutter head sliding block 9 is slidably connected with guide rod 10.Thus structure, it is ensured that cutter head is sliding
The reciprocating motion of block 9 is smooth.
In preferred scheme such as Fig. 4, at the top of cutter head sliding block 9, two blades 17 are cut with scissors with the top of cutter head sliding block 9 respectively
It connects, tension spring 18 is equipped between two blades 17, so that blade 17 is pressed in the bottom of sieve 15；Thus structure, no matter cutter head
Sliding block 9 is moved to which direction, has a blade 17 can be with the bottom reliable contacts of sieve 15, and the tea that will hang over sieve pore
Leaf cutting.Equivalent scheme is that wind spring is arranged on the hinging pin shaft of two blades 17, for making two blades 17 tend to compress
In the bottom of sieve 15.
Close to main shaft 4 and from the position of transmission shaft 12, it is respectively provided with the stroke of 9 position of spacing knife head slider
Switch 29.Thus structure, for controlling extreme position when cutter head sliding block 9 moves back and forth.
In preferred scheme such as Fig. 3, the sliding block driving wheel 8 is located at the inside of screen frame 2, and sliding block transmission belt 7 is synchronization
Band.Thus structure, convenient for arrangement.
In preferred scheme such as Fig. 3, tensioning apparatus 30 is additionally provided on screen frame 2, tensioning apparatus 30 connects with from transmission shaft 12
It connects.The structure of tensioning apparatus 30 are as follows: bearing is socketed with from transmission shaft 12, and the outer ring of bearing is connect with bolt welding, and bolt passes through
Screen frame 2 is connect with nut, out of, the both ends of transmission shaft 12 are movably arranged on 2 inside of screen frame slot, by adjusting nut in spiral shell
The position of bolt, can tension adjusting size.
In preferred scheme, it is equipped with the first driving wheel 14 in the end of main shaft 4, the first driving wheel 14 is located at screen frame 2
Outside, the first driving wheel 14 connect by main transmission belt 6 with block clearing motor 5, and block clearing motor 5 is fixedly mounted on screen frame (unit) 1.
Preferred scheme such as Fig. 1, in 6, the screen frame 2 is arranged as multiple from top to bottom；The sieve 15 of each screen frame 2
Mesh specification is different, and the mesh size of top screen frame 2 is greater than the mesh size of lower part screen frame 2.
In Fig. 3,5, the second driving wheel 13, each adjacent screen frame 2 are additionally provided in the end of each 2 main shaft 4 of screen frame
Main shaft 4 between, adjacent the first driving wheel 14 or the second driving wheel 13 are interconnected by between centers driving belt 19.
Thus structure can be driven all main shafts 4 and rotated by the main shaft 4 of any one screen frame 2 of driving.
As shown in figure 1, the screen frame (unit) 1 is suspended on bracket 3 preferred scheme by hanging steel rope 22, hanging steel rope
22 are equipped with the regulating device 21 for adjustment length.The structure of regulating device 21 are as follows: two are equipped on hanging steel rope 22
Bolt, the thread rotary orientation of bolt pass through rotation screw shell and adjust entire suspension on the contrary, two bolts are connect with screw shell
The length of wirerope 22.
Preferred scheme as shown in figure 1, drives the driving device structure of the reciprocating motion of screen frame (unit) 1 are as follows: the cam pin of eccentric wheel 25
Axis and screen frame (unit) 1 are pivotally connected, and the central axis of eccentric wheel 25 is connect by transmission mechanism 26 with screening motor 27；Transmission mechanism in this example
26 include belt gear, chain-drive mechanism or gear drive, is additionally provided with retarder, screening motor 27 and retarder connect
It connects.
One end of screen frame (unit) 1 be equipped with feed pipe 23 flexible, screen frame (unit) 1 the other end be equipped with respectively with each layer screen frame 2
Corresponding discharge gate 24 on sieve is additionally provided with and discharge gate 24 corresponding under the sieve of lowest level screen frame 2.Enter from feed pipe
Tealeaves is sorted after multilayer is sieved as different specifications.
In another optional scheme such as Fig. 6, the screen frame (unit) 1 is connect by multiple elastics 20 with support 31, in screen frame 2
On be installed with eccentric motor 28；
The axis of the eccentric motor 28 is fixedly connected away from a manner of with eccentric block by adjustable eccentric；Thus structure, convenient for adjusting
The amplitude of eccentric motor 28.The eccentric motor 28 is speed regulating motor；Thus structure, convenient for adjusting the frequency of eccentric motor 28
Rate.
One end of screen frame (unit) 1 be equipped with feed pipe 23 flexible, screen frame (unit) 1 the other end be equipped with respectively with each layer screen frame 2
Corresponding discharge gate 24 on sieve is additionally provided with and discharge gate 24 corresponding under the sieve of lowest level screen frame 2.
By taking the structure in Fig. 1 as an example, in use, tealeaves enters from feed pipe 23, screening motor 27 starts, and drives entire sieve
Frame 1 moves in a circle, and tealeaves is successively from each screen frame 2 by sub-sieve, partially corresponding 24 row of discharge gate from the sieve of screen frame 2
Out, it is partially discharged under the sieve of the screen frame of bottom from discharge gate 24.When screen frame 2 be blocked, then start block clearing motor 5, block clearing
Motor 5 drives the rotation of main shaft 4 of the screen frame 2 of top layer by main transmission belt 6, and the main shaft 4 of the screen frame 2 of top layer is logical
Crossing between centers driving belt 19 drives the main shaft 4 of other screen frames 2 to rotate；The sliding block driving wheel 8 of each screen frame 2 rotates, band
Movable slider transmission belt 7 is run, and the blade 17 at 7 top of sliding block transmission belt cuts off the tealeaves for being blocked in sieve pore, to realize automatic
Cleaning blocking.Tealeaves due to not crossing sieve needs to reduce specification according to grade, and tealeaves cutting will not influence tealeaves
Quality.In preferred scheme, sliding block transmission belt 7 is configured to automatically past with slower speed, such as 1 m/min of speed
Multiple operation, to not have to shut down the operation that automatic cleaning blocking can be completed.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, can mutual any combination.Protection model of the invention
The technical solution that should be recorded with claim is enclosed, the equivalent replacement side of technical characteristic in the technical solution recorded including claim
Case is protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of efficient tealeaves for tea dry sorting sieves, including screen frame (unit) (1), screen frame (unit) (1) and the driving for driving it to move back and forth
Device connection is equipped at least one screen frame (2) on screen frame (unit) (1), and the hollow part of screen frame (2) is equipped with sieve (15), feature
It is: is respectively equipped with main shaft (4) by the position of two close end in screen frame (2) and from transmission shaft (12), main shaft (4) is by driving
Device driving rotation, main shaft (4) and from transmission shaft (12) be equipped with sliding block driving wheel (8), sliding block transmission belt (7) bypass two
A sliding block driving wheel (8), is installed with cutter head sliding block (9) on sliding block transmission belt (7), the blade (17) and sieve of cutter head sliding block (9)
The bottom of net (15) contacts.
2. a kind of efficient tealeaves for tea dry sorting according to claim 1 sieves, it is characterized in that: under sieve (15)
Side, is additionally provided with multiple guide rods (10), and the both ends of guide rod (10) are fixedly connected with screen frame (2), and guide rod (10) passes through cutter head sliding block
(9), cutter head sliding block (9) is slidably connected with guide rod (10).
3. a kind of efficient tealeaves for tea dry sorting according to claim 2 sieves, it is characterized in that: in cutter head sliding block (9)
Top, two blades (17) are hinged with the top of cutter head sliding block (9) respectively, between two blades (17) be equipped with tension spring (18),
So that blade (17) is pressed in the bottom of sieve (15)；
Close to main shaft (4) and from the position of transmission shaft (12), it is respectively provided with the row of spacing knife head slider (9) position
Cheng Kaiguan (29).
4. a kind of described in any item efficient tealeaves for tea dry sorting sieve according to claim 1 ~ 3, it is characterized in that: described
Sliding block driving wheel (8) is located at the inside of screen frame (2), and sliding block transmission belt (7) is synchronous belt.
5. a kind of efficient tealeaves for tea dry sorting according to claim 4 sieves, it is characterized in that: on screen frame (2) also
Equipped with tensioning apparatus (30), tensioning apparatus (30) is connect with from transmission shaft (12).
6. a kind of efficient tealeaves for tea dry sorting according to claim 4 sieves, it is characterized in that: in main shaft (4)
End be equipped with the first driving wheel (14), the first driving wheel (14) is located at the outside of screen frame (2), and the first driving wheel (14) passes through master
Transmission belt (6) is connect with block clearing motor (5), and block clearing motor (5) is fixedly mounted on screen frame (unit) (1).
7. a kind of efficient tealeaves for tea dry sorting according to claim 6 sieves, it is characterized in that: the screen frame (2)
It is arranged as from top to bottom multiple；
It is additionally provided with the second driving wheel (13) in the end of each screen frame (2) main shaft (4), the main biography of each adjacent screen frame (2)
Between moving axis (4), adjacent the first driving wheel (14) or the second driving wheel (13) are mutually connected by between centers driving belt (19)
It connects.
8. according to claim 1 ~ 3,5 ~ 7 described in any item a kind of efficient tealeaves sieves for tea dry sorting, it is characterized in that: institute
The screen frame (unit) (1) stated is suspended on bracket (3) by hanging steel rope (22), and hanging steel rope (22), which is equipped with, is used for adjustment length
Regulating device (21).
9. a kind of efficient tealeaves for tea dry sorting according to claim 8 sieves, it is characterized in that: driving screen frame (unit) (1) is past
The driving device structure moved again are as follows: the eccentric pin shaft of eccentric wheel (25) and screen frame (unit) (1) are pivotally connected, and the central axis of eccentric wheel (25) is logical
Transmission mechanism (26) is crossed to connect with screening motor (27)；
One end of screen frame (unit) (1) be equipped with feed pipe flexible (23), screen frame (unit) (1) the other end be equipped with respectively with each layer screen frame
(2) corresponding discharge gate (24) on sieve is additionally provided with and discharge gate (24) corresponding under the sieve of lowest level screen frame (2).
10. a kind of according to claim 1 ~ 3,5 ~ 7 described in any item efficient tealeaves sieves for tea dry sorting, it is characterized in that:
The screen frame (unit) (1) is connect by multiple elastics (20) with support (31), and eccentric motor (28) are installed on screen frame (2)；
The axis of the eccentric motor (28) is fixedly connected away from a manner of with eccentric block by adjustable eccentric；
The eccentric motor (28) is speed regulating motor；
One end of screen frame (unit) (1) be equipped with feed pipe flexible (23), screen frame (unit) (1) the other end be equipped with respectively with each layer screen frame
(2) corresponding discharge gate (24) on sieve is additionally provided with and discharge gate (24) corresponding under the sieve of lowest level screen frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796699.XA CN110394303B (en) | 2019-08-27 | 2019-08-27 | A high-efficient tealeaves sieve for tealeaves is selected separately |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796699.XA CN110394303B (en) | 2019-08-27 | 2019-08-27 | A high-efficient tealeaves sieve for tealeaves is selected separately |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110394303A true CN110394303A (en) | 2019-11-01 |
| CN110394303B CN110394303B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910796699.XA Active CN110394303B (en) | 2019-08-27 | 2019-08-27 | A high-efficient tealeaves sieve for tealeaves is selected separately |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570274A (en) * | 2020-06-16 | 2020-08-25 | 杭州龙冠实业有限公司 | Auxiliary feeding device and method for Longjing tea screening machine |
| CN112588581A (en) * | 2020-12-18 | 2021-04-02 | 新洲区旧街城楼寨茶厂 | Be used for tealeaves classified screening equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570274A (en) * | 2020-06-16 | 2020-08-25 | 杭州龙冠实业有限公司 | Auxiliary feeding device and method for Longjing tea screening machine |
| CN112588581A (en) * | 2020-12-18 | 2021-04-02 | 新洲区旧街城楼寨茶厂 | Be used for tealeaves classified screening equipment |
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| CN110394303B (en) | 2022-06-17 |
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