CN108246635B - Method for selecting green tea leaves - Google Patents
Method for selecting green tea leaves Download PDFInfo
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- CN108246635B CN108246635B CN201810058438.3A CN201810058438A CN108246635B CN 108246635 B CN108246635 B CN 108246635B CN 201810058438 A CN201810058438 A CN 201810058438A CN 108246635 B CN108246635 B CN 108246635B
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- 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
- B07B15/00—Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
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- 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
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Abstract
A green tea leaf fine-selecting method adopts a device comprising a vibration dust removal mechanism and a color selection mechanism, wherein the vibration dust removal mechanism comprises a vibrating screen, the vibrating screen is in driving connection with a vibrating screen driving device, a conveying belt is arranged on the rear side of the vibrating screen, a humidifying pipe is arranged above the conveying belt, and the humidifying pipe is communicated with a humidifier through a pipeline; the color sorting mechanism comprises a double-layer roller, the circumference of the double-layer roller is tangent to the end part of the conveying belt, uniform small holes are formed in the roller, the inner cavity of the double-layer roller is communicated with an air exhaust device through a pipeline, and a CCD camera is arranged above the double-layer roller; the double-layer roller is in driving connection with a double-layer roller rotation driving device; the CCD camera is in signal connection with a control system. According to the invention, the tea with scabs is better and obviously compared with normal tea by spraying moisture to the tea, so that the tea is easier to be identified by a color selection mechanism.
Description
Technical Field
The invention relates to a method for carefully selecting green tea leaves, and belongs to the technical field of tea leaf processing.
Background
Tea leaves, as a perennial economic crop, have a long history in China and are popular with consumers because of having various effects of resisting bacteria, diminishing inflammation, preventing radiation, regulating blood fat and the like. However, in the planting and production process of tea, the disease problem greatly affects the quality and yield of tea, the economic benefit is lost, and how to accurately and timely find out diseased tea and remove the diseased tea is an important means for ensuring the quality of tea.
Diseases of Yangtze river tea include tea cake diseases, tea leaf cloud blight and the like. Tea cake diseases mainly damage tender leaves and young shoots, the yield of diseased tea trees is low, and the prepared dry tea is fragile, bitter in taste and poor in quality. The disease spots are mostly distributed on the leaf tips and leaf edges, the disease spots are initially in a light yellow water stain shape, gradually expand to be light yellow brown smooth round spots, the front surfaces of the leaves are sunken downwards, the back surfaces of the leaves are raised in a cake shape, and grey-white mildew-shaped substances are densely distributed. Mainly damaging the adult and old leaves, but also the twigs and fruits. The tea leaf cloud stripe disease generates yellow brown water stain-like spots at the leaf tip or leaf margin at first, gradually expands into semicircular or irregular brown large spots, is provided with brown cloud-like stripes with alternating density, the center of later stage disease spots is grey white, and grey black small spots are formed and are arranged in a wheel shape or scattered; the lesion spots on the branches are grayish brown spots, and are slightly sunken; the disease spots on the fruits are round, yellowish brown, and black small spots are grown on the disease spots.
These spots become lighter in color after pan-firing, making it difficult to identify the tea leaves having the spots, and it is therefore necessary to devise a method of selecting green tea leaves.
Disclosure of Invention
The invention aims to provide a method for selecting green tea leaves.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a green tea leaf fine-selecting method adopts a device comprising a vibration dust removal mechanism and a color selection mechanism, wherein the vibration dust removal mechanism comprises a vibrating screen, the vibrating screen is in driving connection with a vibrating screen driving device, a conveying belt is arranged on the rear side of the vibrating screen, a humidifying pipe is arranged above the conveying belt, and the humidifying pipe is communicated with a humidifier through a pipeline; the color sorting mechanism comprises a double-layer roller, the circumference of the double-layer roller is tangent to the end part of the conveying belt, uniform small holes are formed in the roller, the inner cavity of the double-layer roller is communicated with an air exhaust device through a pipeline, and a CCD camera is arranged above the double-layer roller; the double-layer roller is in driving connection with a double-layer roller rotation driving device; the CCD camera is in signal connection with a control system;
the concentration method comprises the following steps:
the first step is as follows: starting the vibrating screen, and then placing the pan-fired tea leaves on a screen mesh of the vibrating screen;
the second step is that: taking out the tea leaves in the first step, placing the tea leaves on a conveying belt, and starting the humidifier to spray moisture to the tea leaves on the conveying belt through a humidifying pipe;
the third step: and starting the air exhaust device and the double-layer roller rotation driving device to transfer the moisture-treated tea leaves onto the double-layer roller, and then starting the CCD camera.
The preferable technical scheme is as follows: the screen mesh of the vibrating screen is 40-60 meshes.
The preferable technical scheme is as follows: the vibrating screen driving device is an ultrasonic wave generating device.
The preferable technical scheme is as follows: the scraper is in driving connection with a scraper rotation driving device, the free end of the scraper is abutted against the double-layer roller, and a control device of the scraper rotation driving device is in signal connection with the control system.
The preferable technical scheme is as follows: the scraper rotation driving device is a servo motor.
The preferable technical scheme is as follows: and when moisture is sprayed to the tea leaves, the relative humidity of the atmosphere above the tea leaves on the conveying belt is 70-85%.
Drawings
Fig. 1 is a schematic diagram of the general structure of the present invention.
In the above drawings: 1. the device comprises a vibrating screen, 2, a conveying belt, 3, a double-layer roller, 4 and a scraper; 5. a CCD camera; 6. and (5) humidifying the tube.
Due to the application of the technical scheme, compared with the prior art, the invention has the advantages that:
according to the invention, the tea with scabs is compared with the normal tea more obviously by spraying moisture to the tea, so that the tea is easier to be identified by a color sorting mechanism.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
A green tea leaf fine selection method adopts a device comprising a vibration dust removal mechanism and a color selection mechanism, wherein the vibration dust removal mechanism comprises a vibrating screen 1, the vibrating screen is in driving connection with a vibrating screen driving device, a conveying belt 2 is arranged below the vibrating screen, a humidifying pipe 6 is arranged above the conveying belt, and the humidifying pipe is communicated with a humidifier through a pipeline; the color sorting mechanism comprises a double-layer roller, the circumference of the double-layer roller 3 is tangent to the end part of the conveying belt, the roller is provided with uniform small holes, the inner cavity of the double-layer roller is communicated with an air extractor through a pipeline, and a CCD camera 5 is arranged above the double-layer roller; the double-layer roller is in driving connection with a double-layer roller rotation driving device; the CCD camera is in signal connection with a control system;
the concentration method comprises the following steps:
the first step is as follows: starting the vibrating screen, and then placing the pan-fired tea leaves on a screen mesh of the vibrating screen;
the second step is that: taking out the tea leaves in the first step, placing the tea leaves on a conveying belt, and starting the humidifier to spray moisture to the tea leaves on the conveying belt through a humidifying pipe;
the third step: and starting the air exhaust device and the double-layer roller rotation driving device to transfer the moisture-treated tea leaves onto the double-layer roller, and then starting the CCD camera.
The preferred embodiment is: the screen mesh of the vibrating screen is 50 meshes. And in other embodiments 40 mesh, 60 mesh.
The preferred embodiment is: the vibrating screen driving device is an ultrasonic wave generating device.
The preferred embodiment is: the scraper blade rotating and driving device is connected with a scraper blade rotating and driving device in a driving mode, the free end of the scraper blade is abutted to the double-layer roller, and a control device of the scraper blade rotating and driving device is in signal connection with the control system.
The preferred embodiment is: the scraper rotation driving device is a servo motor.
The preferred embodiment is: when moisture is sprayed to the tea leaves, the relative humidity of the atmosphere above the tea leaves on the conveyor belt is 85%. And in other embodiments 70%, 75%, and 80%.
The operation method comprises the following steps: starting the vibrating screen, the vibrating screen can be driven to vibrate by an ultrasonic generating device, and can also be driven by the driving mode of the prior art. The dust mixed in the tea leaves is removed, then the tea leaves subjected to dust removal are transferred to a conveying belt, a humidifier is started, and when moisture is sprayed to the tea leaves, the relative humidity of the atmosphere above the tea leaves on the conveying belt is 85%, and due to the fact that the moisture absorption of tea scabs is different from the moisture absorption of tea leaves, and the color change after moisture absorption is different (the moisture absorption of the scabs is more obvious, and the color is darker), the color contrast between the tea scabs and the tea leaves is more obvious. When tea leaves reach the tail end of the conveying belt, the circumference of the double-layer roller 3 is tangent to the end portion of the conveying belt, negative pressure is generated in the double-layer roller under the air extracting device, the tea leaves are transferred to the surface of the double-layer roller, the broken tea leaves enter the inner cavity of the double-layer roller on the double-layer roller, and the large tea leaves are relatively and tidily fixed on the surface of the double-layer roller, so that the CCD camera of the color sorting mechanism can photograph the tea leaves more conveniently. The connecting mode of the CCD camera and the control system can adopt the technical scheme of the existing color selector. The CCD camera is to information transmission to control system will shooing, and when control system discernment, when the tealeaves that has the scab exists, the scraper blade is contradicted with double-deck cylinder to the tealeaves that will have the scab is rejected.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A method for selecting green tea leaves is characterized by comprising the following steps: the device adopted by the selection method comprises a vibration dust removal mechanism and a color selection mechanism, wherein the vibration dust removal mechanism comprises a vibration screen, the vibration screen is in driving connection with a vibration screen driving device, a conveying belt is arranged on the rear side of the vibration screen, a humidifying pipe is arranged above the conveying belt, and the humidifying pipe is communicated with a humidifier through a pipeline; the color sorting mechanism comprises a double-layer roller, the circumference of the double-layer roller is tangent to the end part of the conveying belt, uniform small holes are formed in the roller, the inner cavity of the double-layer roller is communicated with an air exhaust device through a pipeline, and a CCD camera is arranged above the double-layer roller; the double-layer roller is in driving connection with a double-layer roller rotation driving device; the CCD camera is in signal connection with a control system;
the concentration method comprises the following steps:
the first step is as follows: starting the vibrating screen, and then placing the pan-fired tea leaves on a screen mesh of the vibrating screen;
the second step is that: taking out the tea leaves in the first step, placing the tea leaves on a conveying belt, and starting the humidifier to spray moisture to the tea leaves on the conveying belt through a humidifying pipe;
the third step: starting the air exhaust device and the double-layer roller rotation driving device to transfer the tea subjected to moisture treatment onto the double-layer roller, and then starting the CCD camera;
and when moisture is sprayed to the tea leaves, the relative humidity of the atmosphere above the tea leaves on the conveying belt is 70-85%.
2. The method of selecting green tea leaves according to claim 1, wherein: the screen mesh of the vibrating screen is 40-60 meshes.
3. The method of selecting green tea leaves according to claim 1, wherein: the vibrating screen driving device is an ultrasonic wave generating device.
4. The method of selecting green tea leaves according to claim 1, wherein: the scraper is in driving connection with a scraper rotation driving device, the free end of the scraper is abutted against the double-layer roller, and a control device of the scraper rotation driving device is in signal connection with the control system.
5. The method of selecting green tea leaves according to claim 4, wherein: the scraper rotation driving device is a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058438.3A CN108246635B (en) | 2018-01-22 | 2018-01-22 | Method for selecting green tea leaves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058438.3A CN108246635B (en) | 2018-01-22 | 2018-01-22 | Method for selecting green tea leaves |
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| CN108246635A CN108246635A (en) | 2018-07-06 |
| CN108246635B true CN108246635B (en) | 2020-06-30 |
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| CN201810058438.3A Active CN108246635B (en) | 2018-01-22 | 2018-01-22 | Method for selecting green tea leaves |
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| CN109548943B (en) * | 2019-01-16 | 2021-06-22 | 重庆市中药研究院 | Processing method of fried sophora flower bud tea |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001050901A (en) * | 1999-08-11 | 2001-02-23 | Hajime Sangyo Kk | Foreign-body inspection apparatus |
| CN202725517U (en) * | 2012-06-07 | 2013-02-13 | 湖南兰岭绿态茶业有限公司 | Tea color separator |
| CN103721944B (en) * | 2014-01-09 | 2015-08-26 | 新昌县马黛茶业有限公司 | One selects tea method |
| CN203913246U (en) * | 2014-06-22 | 2014-11-05 | 浙江省新昌县澄潭茶厂 | A kind of mono-roller type tealeaves tedder |
| CN106269577A (en) * | 2016-09-21 | 2017-01-04 | 合肥万宝光电科技有限公司 | Waterfall type crawler color separator |
| CN106798036A (en) * | 2017-03-17 | 2017-06-06 | 遵义茗香康源茶饮发展科技有限公司 | The automatic kneading machine of tealeaves |
| CN107335628B (en) * | 2017-07-10 | 2019-05-14 | 合肥名德光电科技股份有限公司 | Ultraviolet light ore color sorter |
| CN107439715A (en) * | 2017-08-29 | 2017-12-08 | 贵州安顺春来茶业有限公司 | A kind of green tea tea leaf tedder |
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