CN203002641U - Double-helix tea fresh leaf grader - Google Patents

Double-helix tea fresh leaf grader Download PDF

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Publication number
CN203002641U
CN203002641U CN 201220578910 CN201220578910U CN203002641U CN 203002641 U CN203002641 U CN 203002641U CN 201220578910 CN201220578910 CN 201220578910 CN 201220578910 U CN201220578910 U CN 201220578910U CN 203002641 U CN203002641 U CN 203002641U
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CN
China
Prior art keywords
double helix
screen
double
screening
leaf
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Expired - Fee Related
Application number
CN 201220578910
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Chinese (zh)
Inventor
杨拥军
包小村
陈力航
刘伟英
喻季红
刘同乐
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HUNAN INST OF TEA
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HUNAN INST OF TEA
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Priority to CN 201220578910 priority Critical patent/CN203002641U/en
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Publication of CN203002641U publication Critical patent/CN203002641U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a double-helix tea fresh leaf grader. A machine frame and a support are of an integrated structure, a motor and a controller are arranged on the support, a support frame is arranged at the front end of the upper portion of the machine frame, a feeding hopper is arranged above the support frame, a cover plate is arranged on the upper portion of the feeding hopper, a chute is formed in an outlet, and an air inlet is formed in the outlet. A fan is arranged below the support frame. The motor and the fan are respectively connected with the controller. A double-helix screening device is arranged on the upper portion of the machine frame, the motor is connected with a gear by a belt, the gear is connected with a friction wheel group, and the friction wheel group is arranged below an inlet of the double-helix screening device. The chute formed in the outlet of the feeding hopper and the inlet of the double-helix screening device are in butt joint. A grading groove is formed in a position where the lower portion of the machine frame corresponds to the double-helix screening device, and a receiving disc is arranged at the tail of the double-helix screening device. Fan and double-helix guiding type screening is adopted so as to achieve of high quality of automatic grading screening of fresh leaf, effectively reduce labor intensity, and improve working efficiency.

Description

A kind of double helix fresh tea leaf grader
Technical field
The utility model relates to fresh tea leaf grading machinery apparatus field, is specially a kind of double helix fresh tea leaf grader.
Background technology
In recent years, Famous High-quality Tea is plucked the difficult technical bottleneck that has become the sustainable development of restriction Famous High-quality Tea.current, fresh tea leaf is plucked and is mainly contained artificial harvesting and mechanical picking dual mode, the artificial harvesting has selectively raw material, can identify and the characteristics such as controllability, the harvesting quality is better, but picking efficiency is low, cost is high, be difficult to adapt to enterprise scale production, development along with mechanization and automatic control technology, the harvesting of tealeaves also is tending towards Mechaniaed harvest gradually, due to the randomness of the tea picking machine that uses at present to leaf picking, pluck old tender the differing of bright leaf, monolithic, intermediate plate is more, be difficult to reach the quality standard of artificial harvesting, needing further bright leaf to be carried out classification processes, to promote the tealeaves commercial quality, increase the benefit, bright leaf classification processor also arises at the historic moment thus.
Present bright leaf classification treatment facility mainly contains two kinds, a kind of is drum sieve, whole sieve turns round around tubular axis, bright leaf feeds from cylindrical shell one end, fall into container through the sieve aperture screening in the cylindrical shell rotary course, unsized bright leaf is discharged from the cylindrical shell other end, manually unsized bright leaf is added into the cylindrical shell entrance, then carries out new round screening; Another kind is to adopt the blower fan air-supply that bright leaf is fallen within different stage isolation plates by under proximad far away by Different Weight, and bright leaf size is not easily distinguishable in screening process.These two kinds bright leaf screening plants all exist grading effect not obvious, and screening efficiency is low, and need manually-operated, and labour intensity is large.
From the bright leaf grader of the more Famous High-quality Tea of marketing, exist still that the tea dry sorting grade is very few, classification efficiency is low, grading effect is poor, the fresh tea leaf damage ratio is high, be not easy to the problem such as collection.Need that to design a kind of cost low badly, grading effect is good, the classification grade is more and the special-purpose classifying equipoment of the machine fresh tea picking of convenient operation.
The utility model content
The technical problem that the utility model solves is to provide a kind of double helix fresh tea leaf grader, by adopting the screen cloth of different pore size size, screen drum is divided for level Four, increases the sorting grade; By the integrated design of screen drum and double helix guide vane, extend screening time simultaneously, improve screening effect; The collection structure that next adopts drawer type makes the bright leaf after sorting be more convenient for collecting, and saves acquisition time, increases work efficiency, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of double helix fresh tea leaf grader, comprise frame, support, feed hopper, controller, blower fan, motor, bracing frame, gear, friction wheels, double helix separating screen device, log washer, receiver, wherein, frame and support are structure as a whole, and support is equipped with motor and controller, and the upper rack front end is provided with bracing frame, the bracing frame top is equipped with feed hopper, the top of feed hopper is provided with cover plate, and its exit is provided with chute, and is provided with air intake vent in the exit; Assembling is in the bracing frame below; Blower fan is connected with controller with motor and is connected; Upper rack is provided with the double helix separating screen device, and motor is connected with gear by belt, and gear is connected with the friction wheels, and the friction wheels are arranged on below double helix separating screen device entrance; The chute that the feed hopper exit arranges docks with double helix separating screen device entrance; The frame lower position corresponding with the double helix separating screen device is provided with log washer, the double helix separating screen device comprises screen cloth, screen drum, screen drum wheel hub and double helix guide vane, screen cloth is fixed in the screen drum wheel hub, the double helix guide vane is arranged on the screen drum wheel hub, the screen-aperture of screen cloth increases from inside to outside successively, and receiver is arranged on the afterbody of double helix separating screen device.
In the utility model, in the double helix separating screen device, the screen drum end is provided with mandrel; Mandrel one end is circumferentially located by bearing pin and axle bed, at axle head, shaft end ring is installed simultaneously and is carried out axial location; The other end of mandrel circumferentially coordinates with bearing on screen drum by interference fits, carries out axial location by round nut and stop washer; Mandrel is connected with friction pulley, and motor rotates by the belt driven gear, and gear is connected with the friction wheels, and the friction wheels rotate and drive the mandrel rotation, and then drives the rotation of double helix separating screen device.
In the utility model, the friction wheels are that the diameter of a pair roller and roller does not wait.
In the utility model, controller is controlled the operating condition of blower fan and motor, and blower fan is provided with timer.
In the utility model, screen cloth adopts the stainless steel steel wire to make, and when realizing the bright leaf classification of tea, avoids the mechanical damage of bright leaf, reduces the friction between bright leaf and screen cloth, reduces the damage ratio of bright leaf, thereby improves the quality of bright leaf.
In the utility model, log washer adopts level Four drawer type collection structure.
In the utility model, fan outlet is connected with air supply duct, and air supply duct is communicated with the air intake vent of feed hopper exit setting.
In the utility model, the screen drum wheel hub selects the carbon constructional quality steel welding to make.
In the utility model, the double helix guide vane adopts the method for wear-resisting steel plate cold roll forming to make.
operation principle of the present utility model: provide power source by rack-mount motor, the band wheel mechanism, gear mechanism, and the friction pulley transmission mechanism is reduced to the required rotating speed of machine when work screen drum running with motor speed, the steel wire that at first raw material of coming in from feed hopper is 25*25 by aperture on screen drum carries out one-level, then bright leaf slides under the rotation of the effect of conducting oneself with dignity and screen drum thereof, the steel wire that enters the aperture and be 30*30 carries out the secondary screening, then fresh tea leaf continues screening and moves to next stage by the double helix guide vane that is fixed in rotating cylinder in rotating cylinder, be that 35*35 and aperture are three grades and the level Four screen cloth of 40*40 by the aperture successively, remaining fresh tea leaf is directly fallen by the discharging port, and enter in the collection and treatment basket of raw material.The bright leaf that falls from one-level screen cloth, secondary screen cloth, three grades of screen clothes and the screening of level Four screen cloth simultaneously enters respectively one to the drawer type gathering-device of level Four, satisfy multistage screening and the collection of bright leaf, simultaneously, reduce the damage ratio of bright leaf, promote the efficient of bright leaf sorting.
when the utility model uses, bright leaf through chute, enters double helix separating screen device entrance through feed hopper, falls into log washer at the bright leaf of action of gravitation next part, when bright leaf enters the double helix separating screen device when more than half, opening controller, starter motor, motor driven gear rotation, gear driven friction wheels rotate, the double helix separating screen device is started working, and starts simultaneously blower fan, and the air intake vent of feed hopper exit setting delivered to wind by air supply duct by blower fan, bright leaf is under the effect of blower fan, carry out a sorting at chute, the fresh tea leaf that proportion is larger falls under the effect of wind-force nearby, the fresh tea leaf that proportion is less falls into corresponding log washer along the sieve aperture of screen cloth, the blower fan timer can arrange according to actual conditions, after through the timing time that arranges, blower fan is out of service, motor works on, driven by motor double helix separating screen device is to the direction running of feed hopper, in operation process, the bright leaf of part sieves under Action of Gravity Field and enters log washer, unsized bright leaf arrives double helix separating screen device entrance with the double helix separating screen device, carry out again the screening of a new round, so circulation, until bright leaf screening is complete, disable motor.In screening process, there are a small amount of Lao Ye, residual leaf to waft to double helix separating screen device afterbody, collect and process with receiver.
Beneficial effect: the utility model adopts blower fan primary election, and bright leaf is more evenly distributed, and follow-up grading effect is better; And adopt the screening of double helix guide type screen drum, and extended screening time, improved the efficient of screening, screen cloth adopts the stainless steel steel wire simultaneously, has reduced the frictional force to bright leaf, reduces the damage of bright leaf, and then avoids screen cloth to the pollution of fresh tea leaf; Secondly, gathering-device adopts the drawer type design, and is more convenient and practical; Control motor and blower fan by controller, realize the automatic classification of bright leaf, the screening quality is high, can adjust operation pattern real-time according to actual conditions repeat screening, effectively reduces labour intensity, has improved operating efficiency.
Description of drawings
Fig. 1 is the side view of the utility model preferred embodiment.
Fig. 2 is the top view of the utility model preferred embodiment.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to a kind of double helix fresh tea leaf grader of Fig. 1, Fig. 2, comprise frame 1, support 2, feed hopper 3, gear 4, friction wheels 5, double helix separating screen device 6, log washer 7, bracing frame, controller, blower fan, motor, receiver.
In the present embodiment, frame 1 is structure as a whole with support 2, and support 2 is equipped with motor and controller, frame 1 top front end is provided with bracing frame, above bracing frame, feed hopper 3 is installed, and the top of feed hopper 3 is provided with cover plate, its exit is provided with chute, and is provided with air intake vent in the exit; Assembling is in the bracing frame below; Blower fan is connected with controller with motor and is connected; Frame 1 top is provided with double helix separating screen device 6, and motor is connected with gear 4 by belt, and gear 4 is connected with friction wheels 5, and friction wheels 5 are arranged on below double helix separating screen device 6 entrances; The chute that feed hopper 3 exits arrange docks with double helix separating screen device 6 entrances; The position corresponding with double helix separating screen device 6, frame 1 bottom is provided with log washer 7, double helix separating screen device 6 comprises screen cloth, screen drum, screen drum wheel hub and double helix guide vane, screen cloth is fixed in the screen drum wheel hub, the double helix guide vane is arranged on the screen drum wheel hub, the screen-aperture of screen cloth increases from inside to outside successively, and receiver is arranged on the afterbody of double helix separating screen device 6.
In the present embodiment, in double helix separating screen device 6, the screen drum end is provided with mandrel; Mandrel one end is circumferentially located by bearing pin and axle bed, at axle head, shaft end ring is installed simultaneously and is carried out axial location; The other end of mandrel circumferentially coordinates with bearing on screen drum by interference fits, carries out axial location by round nut and stop washer; Mandrel is connected with friction pulley, and motor rotates by belt driven gear 4, and gear 4 is connected with friction wheels 5, and friction wheels 5 rotate and drive the mandrel rotation, and then drives 6 rotations of double helix separating screen device.
In the present embodiment, friction wheels 5 are that the diameter of a pair roller and roller does not wait.
In the present embodiment, controller is controlled the operating condition of blower fan and motor, and blower fan is provided with timer.
In the present embodiment, screen cloth employing string diameter is that the stainless steel steel wire of 1mm is made, and when realizing the bright leaf classification of tea, avoids the mechanical damage of bright leaf, reduces the friction between bright leaf and screen cloth, reduces the damage ratio of bright leaf, thereby improves the quality of bright leaf.
In the present embodiment, log washer 7 adopts level Four drawer type collection structure.
In the present embodiment, fan outlet is connected with air supply duct, and air supply duct is communicated with the air intake vent of feed hopper 3 exits settings.
In the present embodiment, the screen drum wheel hub selects the carbon constructional quality steel welding to make.
In the present embodiment, the double helix guide vane adopts the method for wear-resisting steel plate cold roll forming to make.
when the present embodiment is worked, bright leaf through chute, enters double helix separating screen device 6 entrances through feed hopper 3, falls into log washer 7 at the bright leaf of action of gravitation next part, when bright leaf enters double helix separating screen device 6 when more than half, opening controller, starter motor, motor driven gear 4 rotations, gear 4 drives friction wheels 5 and rotates, double helix separating screen device 6 is started working, and starts simultaneously blower fan, and the air intake vent of feed hopper 3 exits settings delivered to wind by air supply duct by blower fan, bright leaf is under the effect of blower fan, carry out a sorting at chute, the fresh tea leaf that proportion is larger falls under the effect of wind-force nearby, the fresh tea leaf that proportion is less falls into corresponding log washer 7 along the sieve aperture of screen cloth, the blower fan timer can arrange according to actual conditions, after through the timing time that arranges, blower fan is out of service, motor works on, driven by motor double helix separating screen device 6 is to the direction running of feed hopper 3, in operation process, the bright leaf of part sieves under Action of Gravity Field and enters log washer 7, unsized bright leaf arrives double helix separating screen device 6 entrances with double helix separating screen device 6, carry out again the screening of a new round, so circulation, until bright leaf screening is complete, disable motor.In screening process, there are a small amount of Lao Ye, residual leaf to waft to double helix separating screen device 6 afterbodys, receiver is used for collecting a small amount of Lao Ye, residual leaf etc., avoids in the bright leaf of screening, surrounding environment being polluted.
In the present embodiment, bright leaf classification requires specific as follows:
(1) quality of fresh tea leaf is tenderer, and easy damaged should avoid bright leaf and screen drum to produce excessive friction during classification, cause the scuffing of bright leaf, affects the manufactured goods quality;
(2) the superfine bright leaf that sorts out is that bud one leaf or two leaves and a bud are just opened up, and requires bud one leaf to account for total amount 16% to 20%, and bud is longer than leaf or bud-leaf is isometric, big or small uniformity, and color and luster is bud green, must not be with the base of a fruit, anosis leaf, purple leaf, remaining leaf or red autumnal leaves; Be that two leaves and a bud or bud three leaves are just opened up for the bright leaf of one-level, require two leaves and a bud to account for 36% to 50%, bud-leaf is isometric, and size is basically identical, and color and luster is fresh, and bud-leaf is complete, anosis leaf, purple leaf, fish leaf, red autumnal leaves; Be two leaves and a bud, bud three leaves or to pressing from both sides two, three leaves for the bright leaf of secondary, require two leaves and a bud to account for 21%~35%, look green is uniform, free from admixture, sick leaf, purple leaf, fish leaf, red autumnal leaves; For three grades of bright leaves be bud three or four leaves or equal tender degree to the folder leaf, require look green uniform, free from admixture, sick leaf, purple leaf, fish leaf, red autumnal leaves; All the other be followed successively by the level Four leaf, etc. siphonal lobe etc.;
(3) each sieve of bright leaf grader mouthful screening precision reaches 80%, and damage ratio is lower than 8%.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. double helix fresh tea leaf grader, it is characterized in that, frame and support are structure as a whole, support is equipped with motor and controller, the upper rack front end is provided with bracing frame, above bracing frame, feed hopper is installed, and the top of feed hopper is provided with cover plate, its exit is provided with chute, and is provided with air intake vent in the exit; Assembling is in the bracing frame below; Blower fan is connected with controller with motor and is connected; Upper rack is provided with the double helix separating screen device, and motor is connected with gear by belt, and gear is connected with the friction wheels, and the friction wheels are arranged on below double helix separating screen device entrance; The chute that the feed hopper exit arranges docks with double helix separating screen device entrance; The frame lower position corresponding with the double helix separating screen device is provided with log washer, the double helix separating screen device comprises screen cloth, screen drum, screen drum wheel hub and double helix guide vane, screen cloth is fixed in the screen drum wheel hub, the double helix guide vane is arranged on the screen drum wheel hub, the screen-aperture of screen cloth increases from inside to outside successively, and receiver is arranged on the afterbody of double helix separating screen device.
2. a kind of double helix fresh tea leaf grader according to claim 1, is characterized in that, blower fan is provided with timer.
3. a kind of double helix fresh tea leaf grader according to claim 1, is characterized in that, in the double helix separating screen device, the screen drum end is provided with mandrel.
4. a kind of double helix fresh tea leaf grader according to claim 1, is characterized in that, the friction wheels are that the diameter of a pair roller and roller does not wait.
CN 201220578910 2012-11-06 2012-11-06 Double-helix tea fresh leaf grader Expired - Fee Related CN203002641U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220578910 CN203002641U (en) 2012-11-06 2012-11-06 Double-helix tea fresh leaf grader

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Application Number Priority Date Filing Date Title
CN 201220578910 CN203002641U (en) 2012-11-06 2012-11-06 Double-helix tea fresh leaf grader

Publications (1)

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CN203002641U true CN203002641U (en) 2013-06-19

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104368519A (en) * 2014-12-07 2015-02-25 正安县瑞缘茶业有限公司 Tea leaf grading mechanism
CN105170443A (en) * 2015-07-31 2015-12-23 衢州学院 Tea grader with filter net cleaning mechanism
WO2017161924A1 (en) * 2016-03-21 2017-09-28 江苏大学 Equal-diameter trommel apparatus and method for fresh tea leaf grading
CN108526021A (en) * 2018-05-24 2018-09-14 嘉兴玉兔食品有限公司 Screening plant for cranberry juice production line
CN108967571A (en) * 2018-06-29 2018-12-11 贵州省桐梓县绿康茶业有限公司 Green tea processing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104368519A (en) * 2014-12-07 2015-02-25 正安县瑞缘茶业有限公司 Tea leaf grading mechanism
CN105170443A (en) * 2015-07-31 2015-12-23 衢州学院 Tea grader with filter net cleaning mechanism
WO2017161924A1 (en) * 2016-03-21 2017-09-28 江苏大学 Equal-diameter trommel apparatus and method for fresh tea leaf grading
CN108526021A (en) * 2018-05-24 2018-09-14 嘉兴玉兔食品有限公司 Screening plant for cranberry juice production line
CN108967571A (en) * 2018-06-29 2018-12-11 贵州省桐梓县绿康茶业有限公司 Green tea processing device

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20161106

CF01 Termination of patent right due to non-payment of annual fee