Cherry tomato cleaning, soaking, fresh-keeping, grading and packaging integrated assembly line device

Abstract

The utility model discloses a cherry tomato cleaning, soaking, fresh-keeping, grading and packaging integrated assembly line device which comprises a feeding mechanism, a bubble spraying mechanism, a soaking, fresh-keeping and air-drying mechanism, a grading and packaging mechanism, a first conveying mechanism, a second conveying mechanism and a controller. The discharging end of the bubble spraying mechanism is connected with the feeding end of the soaking, fresh-keeping and air-drying mechanism through a first conveying mechanism, and the discharging end of the soaking, fresh-keeping and air-drying mechanism is connected with the feeding end of the grading and packaging mechanism through a second conveying mechanism. The feeding mechanism, the bubble spraying mechanism, the soaking, fresh-keeping and air-drying mechanism, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism are connected with the controller. The method is easy and convenient to operate, the automation and intelligence level of the picked cherry tomatoes can be improved, the storage period is prolonged, the commercialization treatment effect of the picked cherry tomatoes is improved, combined application of preservation and processing is achieved, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage, transportation and preservation of agricultural products, and in particular to an integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes. Background Art

[0002] Cherry tomatoes, belonging to the Solanaceae family, are also known as cherry tomatoes and grape tomatoes. They are small fruits with high water content and attractive color. They contain a variety of bioactive ingredients that are beneficial to the human body, such as lycopene, glutathione, sugar, minerals, organic acids and vitamins. The ascorbic acid content of cherry tomatoes is about twice that of ordinary tomatoes, making them an ideal and rare "fruit vegetable".

[0003] Cherry tomatoes are a typical respiratory climacteric fruit. Cellular metabolic activities are still ongoing during storage or transportation and quickly enter the respiratory climacteric period. Therefore, they have a very significant ripening period after picking. Due to the thin skin and high water content of the fruit, it is easily affected by changes in temperature and humidity after picking and is not easy to store. It loses water and wilts in 5 to 6 days at room temperature, causing the flesh to collapse and soften, juice to flow out, and light yellow and gradually black patches on the skin, which greatly reduces the sensory quality of cherry tomatoes. In addition, due to the corruption of microorganisms, cherry tomatoes undergo a series of abnormal physiological and biochemical reactions, which accelerates the corruption and deterioration of cherry tomatoes and greatly shortens the storage period and shelf life, greatly reducing its edible, commercial and medicinal value. Therefore, these corruption phenomena that occur during the storage of cherry tomatoes will greatly hinder the industrialization development of cherry tomatoes, which is unfavorable to the fruit and vegetable economic industry and daily life. In order to reduce the losses of cherry tomatoes during post-harvest storage, circulation and sales, extend the market supply period and supply range, and maintain the edible quality and nutritional value of cherry tomatoes, the preservation and storage of cherry tomatoes is particularly important.

[0004] At present, the patent "A cherry tomato cleaning device" (application number: CN202320435014.0) discloses a cherry tomato cleaning device, by which cherry tomatoes are cleaned. After cleaning, multiple cleaning rollers are used to filter the cleaned cherry tomatoes from the water. There is no need to use a sieve to pick the cherry tomatoes out of the water little by little, which is more convenient and efficient; the patent "A cherry tomato size grading machine" (application number: CN202223483980.4) discloses a cherry tomato size grading machine, which, by installing a screening mechanism and a convenient mechanism, can make the size screening of cherry tomatoes more efficient and faster in the process of size sorting of cherry tomatoes, greatly enhancing the working effect of the cherry tomato size grading machine equipment, and also making the work of cherry tomato size grading and screening simpler and more convenient, effectively reducing the workload of the staff; the patent "A small cherry tomato grading and screening device "(Application No.: CN202021385872.1) discloses a small cherry tomato grading and screening device, which screens and conveys cherry tomatoes through multiple groups of parallel belts. The screened fruits remain on the belts and move to the collection box with the belts, thus completing the screening and collection. The structural design of the utility model is simple, and the cherry tomatoes are collected while realizing multi-level screening, thereby improving work efficiency; the patent "A lifting type cherry tomato logistics transportation packaging gift box" (Application No.: CN202320600354.4) discloses a lifting type cherry tomato logistics transportation packaging gift box. Under the requirements of the green packaging design concept, this patent takes into account the large number of packaged cherry tomatoes and the convenience of storage, transportation, handling, etc. The outer packaging of this cherry tomato is a paper molding design, and a registration plate is designed for precise stacking to ensure stability when a large number of packages are stacked together.

[0005] However, there is no relevant patent regarding an integrated production line device for cleaning, soaking, preserving, grading and packaging cherry tomatoes after harvest.

[0006] Therefore, it is urgent to develop an integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes. Utility Model Content

[0007] The purpose of the utility model is to provide an integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes, which can greatly improve the intelligence and automation of sodium nitroprusside (SNP) preservation after cherry tomatoes are harvested, and provide strong technical support for the supply system of cherry tomatoes and the upgrading of the processing industry.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] The utility model discloses an integrated production line device for washing, soaking, preserving, grading and packaging of cherry tomatoes, comprising a feeding mechanism, a bubble spraying mechanism, a soaking, preserving and air-drying mechanism, a grading and packaging mechanism, a first conveying mechanism, a second conveying mechanism, a control panel, a soaking tank machine control panel and an air-drying machine control panel, wherein the feeding mechanism is connected with a feeding end of the bubble spraying mechanism, a discharging end of the bubble spraying mechanism is connected with a feeding end of the soaking, preserving and air-drying mechanism through the first conveying mechanism, a discharging end of the soaking, preserving and air-drying mechanism is connected with a feeding end of the grading and packaging mechanism through the second conveying mechanism, the control panel is electrically connected with the feeding mechanism, the bubble spraying mechanism, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism respectively, and the soaking tank machine control panel and the air-drying machine control panel are electrically connected with the soaking, preserving and air-drying mechanism.

[0010] The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes, preferably, the bubble spray mechanism includes a hair roller cleaning machine, a bubble spray head, a bubble spray water storage pipe, a bubble spray device water storage pipe branch pipe and a bracket, the hair roller cleaning machine and the bubble spray head are electrically connected to the control panel respectively, one end of the hair roller cleaning machine is connected to the feeding mechanism, and the other end of the hair roller cleaning machine is connected to the conveying mechanism, the bracket is arranged on the hair roller cleaning machine, the bubble spray device water storage pipe branch pipe is arranged on the bracket, the bubble spray device water storage pipe branch pipe is connected to the bubble spray head through the bubble spray water storage pipe, and the bubble spray head is arranged above the hair roller cleaning machine.

[0011] The integrated assembly line device for washing, soaking, preserving, grading and packaging of cherry tomatoes, preferably, the soaking, preserving and air-drying mechanism includes a soaking pool, an air-drying pool, a filter, a cylinder, an air-drying machine fan and a water outlet pipe, the filter is electrically connected to the air-drying machine fan and the air-drying machine control panel, the soaking pool is electrically connected to the soaking pool machine control panel, the soaking pool is provided with the water outlet pipe, the soaking pool is arranged below the air-drying pool, and the filter is arranged at the junction of the soaking pool and the air-drying pool, the cylinder is arranged at the bottom of the soaking pool, the bottom of the filter is connected to the telescopic rod of the cylinder, and the air-drying machine fan is provided above the air-drying pool.

[0012] The integrated assembly line device for washing, soaking, preserving, grading and packaging of cherry tomatoes, preferably, the grading and packaging mechanism includes a roller grading bed, a fruit conveyor belt, a fruit box and a packaging box, the roller grading bed is electrically connected to the control panel, a plurality of rollers are arranged on the roller grading bed, the spacing between the rollers is different, the fruit conveyor belt and the fruit box are alternately arranged below the rollers, and the fruit conveyor belt is connected to the packaging box.

[0013] The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes, preferably, the first conveying mechanism and the second conveying mechanism both include a roller conveyor and a conveyor material baffle, the roller conveyor is electrically connected to the control panel, the conveyor material baffles are provided on both sides of the roller conveyor, and the roller conveyor is respectively connected to the discharge end of the bubble spray mechanism and the discharge end of the soaking, preserving and air-drying mechanism.

[0014] The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes, preferably, the feeding mechanism includes a feeding port, a roller elevator and an elevator material baffle, the roller elevator is electrically connected to the control panel, the elevator material baffles are provided on both sides of the roller elevator, one end of the roller elevator is the feeding port, and the other end of the roller elevator is connected to the bubble spray mechanism.

[0015] The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes is preferably provided with support columns below the bubble spraying mechanism, the soaking, preserving and air-drying mechanism, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism.

[0016] The utility model adopts the above technical solution, which has the following advantages:

[0017] The filter can move up and down, so that soaking and air-drying can be completed by one machine, which improves the intelligent and automated level of freshness preservation.

[0018] The hair roller cleaning machine is combined with bubble spray to clean cherry tomatoes, which improves the cleaning efficiency and cleaning effect.

[0019] The application is simple and convenient to operate, can improve the automation and intelligence level of cherry tomatoes after harvest, extend the storage period, improve the commercial processing effect of cherry tomatoes after harvest, realize the combined application of preservation and processing, and save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Reference numerals in the figures:

[0022] 1. Feeding port; 2. Roller elevator; 3. Elevator material baffle; 4. Bracket;

[0023] 5. Bubble spray head; 6. Bubble spray device water storage pipe; 7. Bubble spray device water storage pipe branch;

[0024] 8. First roller conveyor; 9. First conveyor material baffle; 10. Air dryer fan; 11. Air dryer cover;

[0025] 12. Soaking, fresh-keeping and air-drying mechanism; 13. Soaking tank; 14. Second conveyor material baffle; 15. Second roller conveyor;

[0026] 16. Wool roller cleaning machine; 17. Support column; 18. Control panel; 19. Water outlet pipe; 20. Packing box;

[0027] 21. Fruit conveyor belt; 22. Adjustment knob of the grading machine; 23. Roller grading bed; 24. Control panel of the immersion tank machine;

[0028] 25. Air drying pool; 26. Net; 27. Air drying machine control panel. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "one end", "the other end", "below", "above", "first" and "second" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The utility model provides an integrated assembly line device for washing, soaking, preserving, grading and packaging of cherry tomatoes. The utility model includes a feeding mechanism, a bubble spraying mechanism, a soaking, preserving and air-drying mechanism, a grading and packaging mechanism, a first conveying mechanism, a second conveying mechanism and a controller. The feeding mechanism is connected to the feeding end of the bubble spraying mechanism, the discharging end of the bubble spraying mechanism is connected to the feeding end of the soaking, preserving and air-drying mechanism through the first conveying mechanism, the discharging end of the soaking, preserving and air-drying mechanism is connected to the feeding end of the grading and packaging mechanism through the second conveying mechanism, and the feeding mechanism, the bubble spraying mechanism, the soaking, preserving and air-drying mechanism, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism are respectively connected to the controller. The utility model is simple and convenient to operate, can improve the automation and intelligence level of cherry tomatoes after harvesting, prolong the storage period, improve the commercial processing effect of cherry tomatoes after harvesting, realize the combined application of preservation and processing, and save resources.

[0033] Below, a cherry tomato washing, soaking, fresh-keeping, grading and packaging integrated production line device provided by an embodiment of the utility model is described in detail with reference to the accompanying drawings.

[0034] Reference Figure 1 Reference shown Figure 1 The integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes shown in the figure comprises a feeding mechanism, a bubble spraying mechanism, a soaking, preserving and air-drying mechanism 12, a grading and packaging mechanism, a first conveying mechanism, a second conveying mechanism and a controller, wherein the feeding mechanism is connected to the feeding end of the bubble spraying mechanism, the discharging end of the bubble spraying mechanism is connected to the feeding end of the soaking, preserving and air-drying mechanism 12 through the first conveying mechanism, the discharging end of the soaking, preserving and air-drying mechanism 12 is connected to the feeding end of the grading and packaging mechanism through the second conveying mechanism, and the feeding mechanism, the bubble spraying mechanism, the soaking, preserving and air-drying mechanism 12, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism are respectively connected to the controller. Support columns 17 are respectively provided below the bubble spraying mechanism, the soaking, preserving and air-drying mechanism 12, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism.

[0035] The first conveying mechanism includes a first roller conveyor 8 and a first conveyor material baffle 9. The first conveyor material baffle 9 is provided on both sides of the first roller conveyor 8. The first roller conveyor 8 is connected to the discharge end of the bubble spray mechanism.

[0036] The second conveying mechanism includes a second roller conveyor and a second conveyor material baffle. Second conveyor material baffles 14 are provided on both sides of the second roller conveyor 15. The second roller conveyor 15 is connected to the discharge end of the soaking, fresh-keeping and air-drying mechanism 12.

[0037] Among them, the feeding mechanism includes a feeding port 1, a roller elevator 2 and an elevator material baffle 3, and elevator material baffles 3 are provided on both sides of the roller elevator 2. One end of the roller elevator 2 is the feeding port 1, and the other end of the roller elevator 2 is connected to the bubble spray mechanism.

[0038] Among them, the bubble spray mechanism includes a hair roller cleaning machine 16, a bubble spray head 5, a bubble spray water storage pipe 6, a bubble spray device water storage pipe branch 7 and a bracket 4, the hair roller cleaning machine 16 and the bubble spray head 5 are electrically connected to the controller respectively, one end of the hair roller cleaning machine 16 is connected to the feeding mechanism, and the other end of the hair roller cleaning machine 16 is connected to the conveying mechanism, the bracket 4 is arranged on the hair roller cleaning machine 16, the bubble spray device water storage pipe branch 7 is arranged on the bracket 4, the bubble spray device water storage pipe branch 7 is connected to the bubble spray head 5 through the bubble spray water storage pipe 6, and the bubble spray head 5 is arranged above the hair roller cleaning machine 16.

[0039] Among them, the soaking, preservation and air-drying mechanism 12 includes a soaking pool 13, an air-drying pool 25, a filter 26, a cylinder, an air-drying machine fan 10 and a water outlet pipe 19. The filter 26 and the air-drying machine fan 10 are electrically connected to the controller respectively. The soaking pool 13 is provided with the water outlet pipe 19. The soaking pool 13 is arranged below the air-drying pool 25, and the filter 26 is provided at the junction of the soaking pool 13 and the air-drying pool 25. The cylinder is arranged at the bottom of the soaking pool 13, and the bottom of the filter 26 is connected to the telescopic rod of the cylinder so that the cylinder can drive the filter 26 to move up and down. The air-drying machine fan 10 is provided above the air-drying pool 25.

[0040] The grading and packaging mechanism includes a roller grading bed 23, a fruit conveyor belt 21, a fruit box and a packaging box 20. A plurality of rollers are arranged on the roller grading bed 23, and the rollers form a plurality of roller groups respectively. Moreover, the spacing between the rollers in the roller group is the same, and the spacing between the rollers in different roller groups is different. A fruit conveyor belt 21 and a fruit box are arranged below the rollers. The fruit-outgoing end of the fruit conveyor belt 21 is connected to the packaging box 20, and a fruit conveyor belt 21 is respectively covered below each of the roller groups. Furthermore, the fruit box covers below the gap between two adjacent roller groups, which prevents the cherry tomatoes from falling while also making up for the screening of the cherry tomatoes by size.

[0041] Working process:

[0042] First, the control panel 18 is used to make the operation stable, and then the cherry tomatoes are manually poured into the feed port 1. The cherry tomatoes are automatically rotated and fed to the hair roller cleaning machine filled with water through the roller elevator 2 for cleaning 16. The roller elevator 2 is equipped with a material baffle 3 on both sides to prevent the cherry tomatoes from falling. A bubble spray head 5 is installed above the hair roller cleaning machine 16. The bubble spray head 5 is connected to the bubble spray head water storage pipe 7 through the bubble spray head water storage pipe 6. After the cherry tomatoes are cleaned, the cherry tomatoes are transported to the soaking, fresh-keeping and air-drying mechanism 12 by the first roller conveyor 8. The soaking, fresh-keeping and air-drying mechanism 12 is divided into two layers, the upper layer is the air-drying pool 25, and the lower layer is the soaking pool 13. The air-drying pool 25 and the soaking pool 13 are separated by a leakage net 26. The position of the leakage net 26 can be moved up and down through the soaking / air-drying machine control panel 24. The air-drying pool 25 is used to vibrate and air-dry the water stains on the surface of the cherry tomatoes, and the soaking pool 13 is soaked in the SNP preservative to achieve the purpose of preservation. Before the cleaned cherry tomatoes enter the soaking tank 13, the optimal concentration of the SNP preservative is first prepared. The preservative is prepared by first setting the required water volume through the water inlet button in the soaking tank control panel 24, and then setting the required preservative volume under the volume through the SNP sample volume button. The soaking conditions are set by the soaking time and soaking height keys. After the setting is completed, press the start button, and the water and preservative automatically flow into the soaking tank 13. The filter 26 automatically adjusts to the required height according to the setting. After the preparation is completed, the cherry tomatoes are transported to the soaking tank 13. After the soaking is completed, the filter 26 automatically rises to the air-drying tank 25. Cover the air-drying machine cover 11, set the air-drying time and vibration frequency through the buttons in the air-drying machine control panel 27, and after the setting is completed, turn on the air-drying machine fan 10 through the start button to air-dry the water stains on the surface of the cherry tomatoes. The air-dried cherry tomatoes are transported to the roller grading bed 23 through the second roller conveyor 15. The grading bed 23 is provided with a plurality of rollers arranged to form a plurality of roller groups with different roller arrangement spacings. Cherry tomatoes that meet the roller spacings fall onto the corresponding fruit conveyor belt 21 and the fruit box through the gaps between the rollers, and the fruit conveyor belt 21 transports the cherry tomatoes to the packaging box 20. After the machine operation is completed, the machine is turned off through the control panel 18, and the waste water is discharged through the water outlet pipe 19, thereby achieving the purpose of integrated cleaning, soaking, preservation, air-drying, grading and packaging.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes, characterized in that: It includes a feeding mechanism, a bubble spraying mechanism, an immersion preservation and air-drying mechanism, a grading packaging mechanism, a first conveying mechanism, a second conveying mechanism, a control panel, a immersion pool machine control panel and an air-drying machine control panel. The feeding mechanism is connected to the feeding end of the bubble spraying mechanism, the discharging end of the bubble spraying mechanism is connected to the feeding end of the immersion preservation and air-drying mechanism through the first conveying mechanism, the discharging end of the immersion preservation and air-drying mechanism is connected to the feeding end of the grading packaging mechanism through the second conveying mechanism, the control panel is electrically connected to the feeding mechanism, the bubble spraying mechanism, the grading packaging mechanism, the first conveying mechanism and the second conveying mechanism respectively, and the immersion pool machine control panel and the air-drying machine control panel are electrically connected to the immersion preservation and air-drying mechanism.

2. The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes according to claim 1, characterized in that: The bubble spray mechanism includes a hair roller cleaning machine, a bubble spray head, a bubble spray water storage pipe, a bubble spray device water storage pipe branch pipe and a bracket. The hair roller cleaning machine and the bubble spray head are electrically connected to the control panel respectively. One end of the hair roller cleaning machine is connected to the feeding mechanism, and the other end of the hair roller cleaning machine is connected to the conveying mechanism. The bracket is arranged on the hair roller cleaning machine, the bubble spray device water storage pipe branch pipe is arranged on the bracket, and the bubble spray device water storage pipe branch pipe is connected to the bubble spray head through the bubble spray water storage pipe. The bubble spray head is arranged above the hair roller cleaning machine.

3. The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes according to claim 2 is characterized in that: The soaking, fresh-keeping and air-drying mechanism includes a soaking pool, an air-drying pool, a filter, a cylinder, an air-drying machine fan and a water outlet pipe. The filter is electrically connected to the air-drying machine fan and the air-drying machine control panel, the soaking pool is electrically connected to the soaking pool control panel, the soaking pool is provided with the water outlet pipe, the soaking pool is arranged below the air-drying pool, and the filter is arranged at the junction of the soaking pool and the air-drying pool, the cylinder is arranged at the bottom of the soaking pool, the bottom of the filter is connected to the telescopic rod of the cylinder, and the air-drying machine fan is arranged above the air-drying pool.

4. The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes according to claim 3 is characterized in that: The grading and packaging mechanism includes a roller grading bed, a fruit conveyor belt, a fruit box and a packaging box. The roller grading bed is electrically connected to the control panel. A plurality of rollers are arranged on the roller grading bed. The intervals between the rollers are different. The fruit conveyor belt and the fruit box are alternately arranged below the rollers. The fruit outlet end of the fruit conveyor belt is connected to the packaging box.

5. The integrated assembly line device for washing, soaking, preserving, grading and packaging cherry tomatoes according to claim 4 is characterized in that: The first conveying mechanism and the second conveying mechanism both include a roller conveyor and a conveyor material baffle. The roller conveyor is electrically connected to the control panel. The conveyor material baffles are provided on both sides of the roller conveyor. The roller conveyor is respectively connected to the discharge end of the bubble spray mechanism and the discharge end of the immersion, fresh-keeping and air-drying mechanism.

6. The integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes according to any one of claims 1 to 5, characterized in that: The feeding mechanism includes a feeding port, a roller elevator and an elevator material baffle, the roller elevator is electrically connected to the control panel, the elevator material baffles are arranged on both sides of the roller elevator, one end of the roller elevator is the feeding port, and the other end of the roller elevator is connected to the bubble spray mechanism.

7. The integrated production line device for washing, soaking, preserving, grading and packaging cherry tomatoes according to any one of claims 1 to 5, characterized in that: Support columns are respectively provided below the bubble spraying mechanism, the soaking, fresh-keeping and air-drying mechanism, the grading and packaging mechanism, the first conveying mechanism and the second conveying mechanism.

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