CN106742203B - Automatic weighing system for fruits and vegetables - Google Patents
Automatic weighing system for fruits and vegetables Download PDFInfo
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- CN106742203B CN106742203B CN201710098783.5A CN201710098783A CN106742203B CN 106742203 B CN106742203 B CN 106742203B CN 201710098783 A CN201710098783 A CN 201710098783A CN 106742203 B CN106742203 B CN 106742203B
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- weighing
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- hopper
- conveying belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/02—Packaging agricultural or horticultural products
- B65B25/04—Packaging fruit or vegetables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
- B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Quality & Reliability (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Sorting Of Articles (AREA)
Abstract
The invention relates to an automatic fruit and vegetable weighing system which comprises a material lifting system, an automatic material distributing system, a control system and a discharging system, wherein the material lifting system is used for transporting materials to be weighed to the automatic material distributing system; the automatic material distribution system comprises a material distribution plate and two groups of weighing and screening systems connected with the material distribution plate, wherein each group of weighing and screening systems comprises a material distribution slope, a first conveying belt connected with the material distribution slope, a weighing hopper for receiving and weighing materials on the first conveying belt, a swing arm for controlling the supply of the materials on the weighing hopper and a second conveying belt for conveying the materials in the weighing hopper to the discharge system; the control system is used for controlling the actions of the first conveying belt, the weighing hopper and the swing arm in the automatic material distribution system; the discharging system is used for transferring the materials conveyed by the second conveying belt to the packaging system. The invention can realize full-automatic feeding, weighing and screening, controls the weighing and screening process through the control system, improves the production efficiency and reduces the labor cost.
Description
Technical Field
The invention relates to the field of food processing machinery, in particular to an automatic weighing system for fruits and vegetables.
Background
The automatic screening and packaging of food is an important technology for realizing food mechanized production and improving food processing efficiency, at present, various weighed and packaged vegetables and fruits are on a shelf of a supermarket, the products usually comprise three five uniform vegetables or fruits collected in a packaging box, although the sizes of the vegetables and fruits are different, the total quality is usually controlled in a uniform range, however, at present, the products cannot realize full-automatic production, and the main reason is limited by the following technical bottlenecks:
1. different varieties of fruits and vegetables such as big tomatoes and cherry tomatoes have great differences in mass and volume, the identification modes of the big tomatoes and the small tomatoes by a feeding system on a packaging machine are very different, the existing automatic weighing system is difficult to realize continuous feeding of different specifications, in short, the automatic weighing machine can only realize automatic weighing of fruits and vegetables of one specification, and cannot realize the function of continuously weighing multiple complex materials on one line.
2. The prior weighing system mostly uses platform type scales, the weighing times are less, and the weighing control mode is single, so the weighing precision is lower and the error is larger.
3. In the feeding process, the swing arm controls feeding, and the round material is easily extruded or broken by smashing, so that the material is damaged in the weighing process, and the loss of the material is high.
4. The feeding of weighing system needs manual screening letter sorting, can't realize automatic weighing.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides an automatic fruit and vegetable weighing system, which comprises a material lifting system, an automatic material distributing system, a control system and a discharging system, wherein,
the material lifting system comprises an inclined conveying belt and is used for conveying materials to be weighed to the automatic material distribution system;
the automatic material distribution system comprises a material distribution plate and two groups of weighing and screening systems connected with the material distribution plate, wherein each group of weighing and screening systems comprises a material distribution slope, a first conveying belt connected with the material distribution slope, a weighing hopper for receiving and weighing materials on the first conveying belt, and a swing arm for controlling the supply of the materials on the weighing hopper; the automatic material distribution system also comprises a second conveying belt for conveying the materials in the weighing hopper to the discharge system; the control system is electrically connected with the automatic material distribution system and is used for controlling the actions of the first conveying belt, the weighing hopper and the swing arm in the automatic material distribution system;
the discharging system is arranged to be a discharging hopper, is connected with one end, far away from the material distributing plate, of the second conveying belt and is used for transferring materials conveyed by the second conveying belt to the packaging system.
Each group of weighing and screening systems comprises a plurality of weighing hoppers and swing arms, the number of the swing arms and the number of the weighing hoppers are equal, one swing arm corresponds to one weighing hopper, a weighing device used for weighing materials is arranged in each weighing hopper, a receiving hopper is further arranged between each weighing hopper and the second conveying belt, the receiving hopper can automatically sense the materials and is used for automatically opening an opening after receiving the materials in the weighing hoppers and automatically closing the opening after the materials which are weighed and qualified slide down to the second conveying belt.
Wherein, each receiving hopper is also electrically connected with the control system.
The swing arm is movably connected with a driving rod fixedly arranged in the weighing and screening system, and when the swing arm is in an opening state, an inlet of the weighing hopper is communicated with the first conveying belt; when the swing arm is in a closed state, the inlet of the weighing hopper is not communicated with the first conveying belt.
Wherein, the control system to automatic branch material system's control includes:
controlling the swing arm to be in an opening state, so that the material on the first conveying belt falls into the corresponding weighing hopper;
controlling the swing arm to be in a closed state, integrating the mass of the materials in all weighing hoppers, screening out several groups with qualified total mass, and enabling the materials in the groups to slide down into the receiving hopper;
after the receiving hopper slides the material to the second conveying belt and the opening is closed, the swing arm corresponding to the weighing hopper needing to be fed is controlled to be opened, and the next weighing and screening period is started.
In each group of weighing and screening systems, the weighing hoppers, the receiving hoppers and the swing arms are the same in number and are all 5-10.
In the automatic material distribution system, the feeding modes of the weighing hoppers are bilaterally symmetrical, namely in one weighing and screening period, the corresponding weighing hoppers in the two groups of weighing and screening systems feed simultaneously or do not feed simultaneously.
The material distributing plate and the material distributing slope are arranged in an inclined mode and used for buffering the impact degree of the fruits and vegetables when the fruits and vegetables roll downwards.
Wherein, the first conveyer belt outside is equipped with the baffle for avoid the material landing.
The automatic fruit and vegetable weighing system provided by the invention can realize full-automatic feeding, weighing and screening, and the weighing and screening processes are controlled by the control system, so that the production efficiency is improved, and the labor cost is reduced.
Drawings
FIG. 1: side view schematic of the invention (only the main components are shown);
FIG. 2: the invention has a three-dimensional structure schematic diagram (only main components are illustrated);
FIG. 3: the partial structure of another angle of the invention is a three-dimensional structure schematic diagram (only main components are illustrated);
FIG. 4: the front view of the invention (only the main components are illustrated).
Description of the reference numerals
10 Material lifting System
20 automatic material distributing system
21 material distributing plate
22 divide the material slope
23 first conveyor belt
24 weighing hopper
25 swing arm
26 second conveyor belt
27 receiving hopper
28 baffle
29 fixing device
30 control system
40 discharge system/hopper
50 conveyer belt support
60 swing arm supporting device
The rod is driven 61.
Detailed Description
In order to further understand the technical scheme and the beneficial effects of the present invention, the following detailed description of the technical scheme and the beneficial effects thereof is provided with the accompanying drawings.
Fig. 1 and 2 are a schematic side view and a schematic perspective view of the present invention, and as shown in fig. 1 to 2, the present invention provides an automatic fruit and vegetable weighing system, which includes a material lifting system 10, an automatic material distributing system 20, a control system 30 and a discharging system 40, wherein the material lifting system 10 includes an inclined conveyor belt for transporting materials to be weighed to the automatic material distributing system 20.
Please refer to fig. 3 and fig. 4, which are a schematic perspective view and a front view of a partial structure according to another angle of the present invention: the automatic material distributing system 20 comprises a material distributing plate 21 and two groups of weighing and screening systems connected with the material distributing plate 21, wherein each group of weighing and screening systems comprises a material distributing slope 22, a first conveying belt 23 connected with the material distributing slope 22, a plurality of weighing hoppers 24 for receiving and weighing materials on the first conveying belt 23 and a plurality of swing arms 25 for controlling the supply of the materials on the weighing hoppers 24; the automatic material distribution system 20 further comprises a second conveyor belt 26 for transporting the material in the weighing hopper 24 to the discharge system 40; the weighing and screening system further comprises a plurality of receiving hoppers 27 arranged between the weighing hoppers 24 and the second conveyor belt 26; the number of the weighing hoppers 24, the swing arms 25 and the receiving hoppers 27 in each group of weighing and screening systems is set to be multiple, the number of the weighing hoppers 24, the swing arms 25 and the receiving hoppers 27 in each group of weighing and screening systems is the same, and the number of the hoppers 24, the swing arms 25 and the receiving hoppers 27 in the two groups of weighing and screening systems is also the same.
In the invention, the swing arms 25 are movably connected in the automatic material distributing system 20, specifically, a swing arm supporting device 60 is fixedly arranged on each conveyer belt bracket 50, the swing arms are movably connected with the swing arm supporting device 60 through a driving rod 61 fixedly arranged in the swing arm supporting device 60, the swing arms are used for being opened or closed according to the requirements of the weighing hoppers 24 under the control of the control system 30, and when the swing arms 25 are opened, the inlets of the weighing hoppers 24 are communicated with the first conveyer belts 23; when the swing arm 25 is in a closed state, the inlet of the weighing hopper 24 is not communicated with the first conveyer belt 23; thereby allowing the material on the first conveyor belt 23 to fall into the weighing hopper 24 or preventing the material on the first conveyor belt 23 from falling into the weighing hopper 24.
In the present invention, a person skilled in the art can set the structure and the swinging manner of the swinging arm 25 according to the common knowledge, but the present invention is not limited, but in order to avoid the material extruded onto the first conveying belt 23 when the swinging arm 25 moves, it is preferable to set the moving range of the swinging arm 25 not to overlap with the first conveying belt 23, that is, when the swinging arm 25 is opened, it moves toward the inner side (close to the second conveying belt 26) to make the material on the first conveying belt 23 fall into the weighing hopper 24; after the swing arm 25 is closed, it is disposed in the gap between the first conveyor belt 23 and the second conveyor belt 26 in the longitudinal direction. Specifically, when swing arm 25 is in the closed state, swing arm 25 is horizontally arranged right in front of hopper 24, when swing arm 25 is in the open state, swing arm 25 moves obliquely backward relative to hopper 24, and swing arm 25 is obliquely arranged on the side of hopper 24.
In the invention, the receiving hopper 27 is used for receiving the materials falling from the weighing hopper 24, the receiving hopper 27 is provided with an opening capable of automatically sensing the materials, the opening is automatically opened after receiving the materials from the weighing hopper 24, and the opening is automatically closed after the weighed qualified materials slide down to the second conveyer belt 26.
The control system 30 is electrically connected to the automatic distributing system 20, and is configured to control the actions of the first conveyor belt 23, the weighing hopper 24, and the swing arm 25 in the automatic distributing system 20, and end the weighing and screening cycle after receiving the information that the opening of the receiving hopper 27 is closed, and start the next weighing and screening cycle.
Specifically, the control of the automatic material distribution system 20 by the control system 30 includes:
controlling the swing arm 25 to be in an open state, so that the materials on the first conveying belt 23 fall into the corresponding weighing hopper 24;
controlling the swing arm 25 to be in a closed state, integrating the mass of the materials in all the weighing hoppers 24, screening several groups with qualified total mass, and enabling the materials in the groups to slide down into the receiving hopper 27;
after the receiving hopper 27 slides the material downwards to the second conveyer belt 26 and closes the opening, the swing arm 25 corresponding to the weighing hopper 24 needing to be fed is controlled to be opened, and the next weighing and screening period is started;
the discharging system 40 is configured as a discharging hopper 40, and is connected to an end of the second conveyor belt 26 away from the material separating plate 21, for transferring the material conveyed by the second conveyor belt 26 to a packaging system (not shown).
In the present invention, the number of each weighing hopper 24, receiving hopper 27 and swing arm 25 in each weighing and screening system is 5-10, however, in specific implementation, 2, 3 or 4 of the weighing hoppers 24, receiving hoppers 27 and swing arms 25 in each weighing and screening system can be selected for automatic weighing and screening, and all the weighing hoppers 24, receiving hoppers 27 and swing arms 25 are not required to be used, depending on the mass size of the actually selected material and the total mass range of the material, for example, in actual production, an appropriate tomato combination can be selected from every 8 tomatoes to package into a qualified product, and in each weighing and screening system, only 4 weighing hoppers 24, receiving hoppers 27 and swing arms 25 in each weighing and screening system are controlled to work, but it should be noted that in the weighing and screening system of the present invention, the feeding mode of a plurality of weighing hoppers 24 is left-right symmetric feeding, that is in one weighing and screening cycle, the weighing hoppers 24 corresponding to the two weighing and screening systems feed simultaneously or do not feed simultaneously; specifically, for example, two right and left weighing and sorting systems are respectively provided with 7 sets of weighing hoppers 24, receiving hoppers 27, and swing arms 25, and are respectively numbered from front to back as the 1 st to 7 th sets and the 8 th to 14 th sets, and in actual production, only 8 sets are required, and when the 1 st to 4 th sets of weighing hoppers 24, receiving hoppers 27, and swing arms 25 are selected from the left weighing and sorting system, the 8 th to 11 th sets need to be selected correspondingly from the right weighing and sorting system.
In the invention, in order to buffer the impact degree of the fruits and vegetables when the fruits and vegetables roll downwards and avoid the fruits and vegetables with juice or soft texture from being smashed, the material distributing plate 21 and the material distributing slope 22 are arranged in an inclined shape.
Referring to fig. 3, in the present invention, a baffle 28 is disposed outside the first conveyor belt 23 for preventing the material from sliding off, and in order to prevent the baffle 28 from affecting the movement of the first conveyor belt 23, the baffle 28 is fixed on the conveyor belt bracket 50 by a fixing device 29, so that a certain gap is maintained between the baffle 28 and the first conveyor belt 23, and the first conveyor belt 23 runs smoothly, and meanwhile, in order to prevent the feeding of the weighing hoppers 24 of each group from affecting each other, the baffle 28 is preferably configured as a concave-convex screen structure, each concave structure corresponds to one group of the swing arms 25 and the weighing hoppers 24 (each concave structure corresponds to the position of the swing arm 25 when being closed, that is, the position of the inlet of the weighing hopper 24), so as to prevent the material corresponding to the swing arm 25 of the adjacent group from sliding to the group, and achieve the ordered feeding.
To further understand the working mode and beneficial effects of the present invention, the working mode of the present invention will be described by taking the example that each group of weighing and screening systems is respectively provided with 7 groups of weighing hoppers 24, receiving hoppers 27 and swing arms 25:
1. the material lifting system 10 transports the materials to be weighed and screened to the material distributing plate 21, and the materials on the material distributing plate 21 fall onto two groups of first conveying belts 23 through material distributing slopes 22 on the left side and the right side respectively;
2. 7 groups of weighing hoppers 24, receiving hoppers 27 and swing arms 25 in each weighing and screening system are all in working states, so that in the first weighing and screening period, the control system 30 controls 14 swing arms 25 to be opened, so that 14 weighing hoppers 24 all fall into the materials, and then the swing arms 25 are controlled to be closed.
3. The 14 weighing hoppers 24 weigh the materials in the weighing hoppers 24 simultaneously, the control system 30 calculates and integrates the materials, and finally, the total mass of the materials in the weighing hoppers 24 selected from the groups 1, 2, 5 and 7 meets the production requirement, and then the materials in the weighing hoppers 24 selected from the groups 1, 2, 5 and 7 are controlled to fall into the receiving hopper 27.
4. The receiving hopper 27 automatically opens the opening after sensing the material, so that the material falls into the second conveyor belt 26, is conveyed to the discharging hopper 40 through the second conveyor belt 26, and is conveyed to the packaging system.
5. After receiving the information that the opening of the receiving hopper 27 is closed, the control system 30 controls the swing arms 25 of the 1 st, 2 nd, 5 th and 7 th groups to be opened, so that the materials fall into the weighing hoppers 24 of the 1 st, 2 nd, 5 th and 7 th groups again, and the next weighing and screening cycle is started.
In the present invention, the operation of the swing arm 25 can be realized by setting a time swing difference.
The invention has the beneficial effects that:
1. through the material lift system who sets up the slope, divide the flitch and divide the material slope, avoid the material to be extruded impaired from a plurality of levels, reduced the loss of material.
2. Through the combination of the material lifting system and the automatic material distributing system, full-automatic feeding, weighing and split charging are realized, and the labor cost is saved.
3. The control system can be combined with the calculator to realize the control of the weighing screening, the weighing screening of the materials can be realized 400 times per second, and the weighing precision is improved.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that the scope of the present invention is not limited thereto, and those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a fruit vegetables automatic weighing system which characterized in that: comprises a material lifting system, an automatic material distributing system, a control system and a discharging system, wherein,
the material lifting system comprises an inclined conveying belt and is used for conveying materials to be weighed to the automatic material distribution system;
the automatic material distribution system comprises a material distribution plate and two groups of weighing and screening systems connected with the material distribution plate, wherein each group of weighing and screening systems comprises a material distribution slope, a first conveying belt connected with the material distribution slope, a weighing hopper for receiving and weighing materials on the first conveying belt, and a swing arm for controlling the supply of the materials on the weighing hopper; the automatic material distribution system also comprises a second conveyer belt used for conveying the materials in the weighing hopper to the discharge system;
the control system is electrically connected with the automatic material distribution system and is used for controlling the actions of the first conveying belt, the weighing hopper and the swing arm in the automatic material distribution system;
the discharging system is a discharging hopper, is connected with one end of the second conveying belt, which is far away from the material distributing plate, and is used for transferring the materials conveyed by the second conveying belt to the packaging system; each group of weighing and screening systems comprises a plurality of weighing hoppers and swing arms, the number of the swing arms is equal to that of the weighing hoppers, one swing arm corresponds to one weighing hopper, a weighing device for weighing materials is arranged in each weighing hopper, a receiving hopper is arranged between each weighing hopper and the second conveying belt, the receiving hopper can automatically sense the materials, the opening can be automatically opened after the materials in the weighing hoppers are received, and the opening can be automatically closed after the weighed qualified materials slide down to the second conveying belt;
the swing arm is movably connected with a driving rod fixedly arranged in the weighing and screening system, and when the swing arm is in an opening state, an inlet of the weighing hopper is communicated with the first conveying belt; when the swing arm is in a closed state, the inlet of the weighing hopper is not communicated with the first conveying belt;
the control system controls the automatic material distribution system and comprises the following steps:
controlling the swing arm to be in an opening state, so that the material on the first conveying belt falls into the corresponding weighing hopper;
controlling the swing arm to be in a closed state, integrating the mass of the materials in all weighing hoppers, screening out several groups with qualified total mass, and enabling the materials in the groups to slide down into the receiving hopper;
after the receiving hopper slides the material to the second conveying belt and the opening is closed, controlling the swing arm corresponding to the weighing hopper needing to be fed to be opened, and entering the next weighing and screening period;
the outer side of the first conveying belt is provided with a baffle for preventing materials from sliding off, and the baffle is of a screen structure.
2. The automatic fruit and vegetable weighing system of claim 1, wherein: each receiving hopper is also electrically connected with the control system.
3. The automatic fruit and vegetable weighing system of claim 1, wherein: in each group of weighing and screening systems, the weighing hoppers, the receiving hoppers and the swing arms are the same in number and are all 5-10.
4. The automatic fruit and vegetable weighing system of claim 1, wherein: in the automatic material distribution system, the feeding modes of the weighing hoppers are bilaterally symmetrical, namely, in one weighing and screening period, the corresponding weighing hoppers in the two groups of weighing and screening systems simultaneously feed or do not feed.
5. The automatic fruit and vegetable weighing system of claim 1, wherein: the material distributing plate and the material distributing slope are arranged in an inclined mode and used for buffering the impact degree of the fruits and vegetables when the fruits and vegetables roll downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098783.5A CN106742203B (en) | 2017-02-23 | 2017-02-23 | Automatic weighing system for fruits and vegetables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098783.5A CN106742203B (en) | 2017-02-23 | 2017-02-23 | Automatic weighing system for fruits and vegetables |
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| Publication Number | Publication Date |
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| CN106742203A CN106742203A (en) | 2017-05-31 |
| CN106742203B true CN106742203B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710098783.5A Active CN106742203B (en) | 2017-02-23 | 2017-02-23 | Automatic weighing system for fruits and vegetables |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110816965A (en) * | 2019-12-13 | 2020-02-21 | 郑州思念食品有限公司 | Rice dumpling pairing equipment and method |
| CN111567613A (en) * | 2020-05-22 | 2020-08-25 | 张艳 | Processing method of dehydrated fruits and vegetables |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028426A1 (en) * | 1980-07-26 | 1982-02-18 | Wickers Automatische Verpackungssysteme GmbH, 2084 Rellingen | LOADING LINE FOR FRUIT, VEGETABLES AND OTHER PIECE GOODS AND METHOD FOR LOADING A PACKAGING DEVICE WITH FRUIT, VEGETABLES AND OTHER PIECE GOODS |
| ES2004770A6 (en) * | 1987-07-29 | 1989-02-01 | Gual Asociados S A L | Automatic filling machine of horticultural bulk or volumetric filling products (Machine-translation by Google Translate, not legally binding) |
| CN1712142A (en) * | 2005-07-20 | 2005-12-28 | 广东省农业机械研究所 | Intelligent fruits grading device |
| CN100506650C (en) * | 2007-11-13 | 2009-07-01 | 农业部南京农业机械化研究所 | Automatic weighing boxing apparatus for fresh fruit |
| CN202453061U (en) * | 2012-03-14 | 2012-09-26 | 江西科技师范学院 | Continuous weighing device |
| CN203318751U (en) * | 2013-05-30 | 2013-12-04 | 宁夏大学 | Automated fruit weighing and boxing system |
| CN203832784U (en) * | 2014-05-14 | 2014-09-17 | 赣州市天源果业有限公司 | Automatic fruit incasing machine |
| CN206665013U (en) * | 2017-02-23 | 2017-11-24 | 北京市裕农优质农产品种植公司 | Fruits and vegetables automatic weighing system |
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Address after: No. 26, Leyuan Street, Yanqi Economic Development Zone, Huairou District, Beijing 101400 Applicant after: BEIJING YUNONG HIGH QUALITY AGRICULTURAL PRODUCTS CO.,LTD. Applicant after: BEIJING University OF AGRICULTURE Address before: Building 17, Sino Korean cultural and creative innovation park, No. 813, Changlin, Xisanqi, Haidian District, Beijing 100085 Applicant before: BEIJING YUNONG HIGH-QUALITY FARM PRODUCTS PLANTING CO. Applicant before: BEIJING University OF AGRICULTURE |
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