Automatic fruit and vegetable soaking and cleaning machine

Abstract

The invention relates to an automatic fruit and vegetable soaking and cleaning machine, which effectively solves the problems that the cleaning of agricultural residues in fruits and vegetables is not thorough and multi-stage cleaning is not possible; the technical solution thereof comprises an outer shell, a rotating shaft is arranged in the middle of the outer shell, an upper bracket and a lower bracket are arranged on the rotating shaft, the upper bracket and the lower bracket can rotate synchronously and intermittently in the opposite direction, a plurality of filter frames are evenly distributed on the upper bracket, and a plurality of water tanks corresponding to the filter frames are evenly distributed on the lower bracket; the lower bracket moves upward to make the water tank cover the outer side of the filter frame; the lower bracket moves downward to make the water tank and the filter frame separate; a group of filter frames and water tanks corresponding to each other above and below form a work station; a plurality of main joints corresponding to a plurality of work stations are fixed on the bottom of the outer shell, and a vertical sub-joint is installed at the bottom of each water tank; the main joint and the sub-joint are connected after docking, and closed after separation; the invention adopts a small batch water use method to achieve a water-like flushing effect, can achieve multi-stage cleaning, improve the cleaning effect, and reduce agricultural residues.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, in particular to an automatic fruit and vegetable soaking and cleaning machine. Background Art

[0002] In recent years, the contamination of agricultural products such as fruits and vegetables by pesticides or pathogens has become increasingly serious. Reports of people being harmed by residual pesticides or infected by pathogens after eating fruits and vegetables are not uncommon. In the field of food processing technology, the first step of fruits and vegetables is to wash them to remove the attached dust and pesticide residues.

[0003] There are many ways to wash fruits and vegetables at present. A common one is a fruit and vegetable washing machine with dust removal function disclosed in patent document CN114586996B. The machine has a large water tank, and a stirring or bubbling device is arranged in the water tank to wash the fruits and vegetables. At the same time, a conveyor belt is used to transport the fruits and vegetables. This method has a long water change cycle, which may easily cause incomplete subsequent washing of fruits and vegetables, and the soaking time is short, so the pesticide residue is not thoroughly washed.

[0004] For example, patent documents CN103919483B disclose a fruit and vegetable cleaning machine and CN113529878B disclose a fruit and vegetable cleaning machine, both of which use a built-in stirring frame for stirring, which can easily cause damage to fruits and vegetables, especially some soft fruits and vegetables, such as tomatoes, strawberries, peaches, etc.

[0005] In addition, the pesticide residues of fruits and vegetables such as strawberries and tomatoes are relatively serious, and they need to be soaked and rinsed multiple times before the pesticide residues can be reduced. At the same time, for different types of pesticide residues, different types of cleaning agents need to be added to achieve the purpose of rapid dissolution of pesticide residues. In summary, the above patent documents still cannot change the water in time, and the amount of water changed each time is large, wasting water resources. Therefore, there is a need for a more gentle device that can change the cleaning water in time and save water. Summary of the invention

[0006] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide an automatic fruit and vegetable soaking and cleaning machine, which can effectively solve the problems of incomplete cleaning of agricultural residues in fruits and vegetables and inability to perform multi-stage cleaning.

[0007] The technical solution is to include an outer shell, a vertical rotating shaft is arranged in the middle of the outer shell, an upper bracket and a lower bracket are installed on the rotating shaft, the upper bracket and the lower bracket can rotate synchronously and intermittently, and the rotation directions of the upper bracket and the lower bracket are opposite; a plurality of filter frames are evenly arranged on the upper bracket, and a plurality of water tanks corresponding to the filter frames are evenly arranged on the lower bracket; the lower bracket moves upward to make the water tank cover the outer side of the filter frame; the lower bracket moves downward to make the water tank and the filter frame separate;

[0008] The set of filter frames and water tanks corresponding to each other above and below constitute a workstation; a plurality of main joints corresponding to the plurality of workstations are fixed on the bottom of the outer shell, and a vertical sub-joint is installed at the bottom of each water tank; the main joint and the sub-joint can be connected after docking, and can be closed separately after separation;

[0009] A feeding hopper corresponding to one of the workstations is fixed on the upper part of the outer shell, a discharge port corresponding to one of the workstations is arranged on the side wall of the outer shell, and an inclined receiving plate is arranged at the discharge port; the workstation of the discharge port is adjacent to the workstation corresponding to the feeding hopper.

[0010] The advantages of the present invention are: 1. It can realize timely replacement of cleaning water. 2. It adopts the method of using water in small batches to achieve the effect of running water flushing, and can realize multi-stage cleaning, improve the cleaning effect, and reduce agricultural residues. 3. It can automatically realize the filling and drainage of water tanks, as well as the addition of cleaning agents, and can also automatically discharge processed fruits and vegetables. 4. The damage to fruits and vegetables is reduced by multi-stage soaking, which is suitable for fruits and vegetables with softer texture. 5. Each batch of fruits and vegetables can be soaked in clean water during the last washing to avoid pesticide residues on the surface of fruits and vegetables. 6. The purpose of saving water and improving cleaning efficiency is achieved by using water circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the present invention.

[0012] Figure 2 It is a front cross-sectional view of the present invention (immersed state).

[0013] Figure 3 It is a front cross-sectional view of the present invention (disengaged and rotated state).

[0014] Figure 4 It is the front cross-sectional view of the present invention (water injection and drainage state).

[0015] Figure 5 for Figure 2 Top view of the .

[0016] Figure 6 It is a three-dimensional schematic diagram of the outer shell. DETAILED DESCRIPTION

[0017] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0018] Depend on Figures 1 to 6The present invention comprises an outer shell 1, a vertical rotating shaft 2 is arranged in the middle of the outer shell 1, an upper bracket 3 and a lower bracket 4 are installed on the rotating shaft 2, the upper bracket 3 and the lower bracket 4 can rotate synchronously and intermittently, and the rotation directions of the upper bracket 3 and the lower bracket 4 are opposite; a plurality of filter frames 5 are evenly distributed on the upper bracket 3, and a plurality of water tanks 6 corresponding to the filter frames 5 are evenly distributed on the lower bracket 4; the lower bracket 4 moves upward so that the water tank 6 is sleeved on the outside of the filter frame 5; the lower bracket 4 moves downward so that the water tank 6 and the filter frame 5 are separated;

[0019] The set of filter frames 5 and water tanks 6 corresponding to each other above and below constitute a workstation; a plurality of main joints 7 corresponding to the plurality of workstations are fixed on the bottom of the outer shell 1, and a vertical auxiliary joint 8 is installed at the bottom of each water tank 6; the main joint 7 and the auxiliary joint 8 can be connected after docking, and can be closed separately after separation;

[0020] A feeding hopper 9 corresponding to one of the workstations is fixed on the upper part of the outer shell 1, and a discharge port 10 corresponding to one of the workstations is arranged on the side wall of the outer shell 1, and an inclined receiving plate 11 is arranged at the discharge port 10; the workstation of the discharge port 10 is adjacent to the workstation corresponding to the feeding hopper 9.

[0021] In order to achieve the purpose of multi-stage cleaning by water circulation, the main joint 7 corresponding to the discharge port 10 is connected to the water inlet pipe via a pipe, the main joint 7 corresponding to the feeding hopper 9 is connected to the waste water tank via a pipe, and some of the remaining multiple main joints 7 are connected to the cleaning agent via a pipe.

[0022] In order to realize automatic discharging, a baffle 12 that can move up and down is provided on the side of the filter frame 5 facing away from the rotating shaft 2, and a lever 13 is fixed on the baffle 12. A circle of concave annular grooves 14 are provided on the inner wall of the outer shell 1. The position on the annular groove 14 corresponding to the discharge port 10 protrudes upward, and the lever 13 is placed in the annular groove 14.

[0023] In order to realize the installation and rotation of the upper bracket 3 and the lower bracket 4, the central parts of the upper bracket 3 and the lower bracket 4 are provided with a sleeve mounted on the rotating shaft 2, the sleeve corresponding to the upper bracket 3 is rotatably connected to the rotating shaft 2, and the sleeve corresponding to the lower bracket 4 is splined to the rotating shaft 2; a stepper motor 15 is fixed to the outer shell 1, and a first bevel gear 16 is provided on the output shaft of the stepper motor 15, and a second bevel gear 17 meshing with the first bevel gear 16 is provided on the rotating shaft 2 and the sleeve corresponding to the upper bracket 3.

[0024] In order to achieve multi-stage cleaning, the filter frame 5 and the water tank 6 are each provided with five, the station corresponding to the feeding hopper 9 is station A, and the clockwise directions are station B, station C, station D, and station E, wherein station B corresponds to the discharge port 10.

[0025] In order to realize the up and down movement of the lower bracket 4, an auxiliary motor 18 is fixed on the rotating shaft 2, and a wire wheel 19 is installed on the output shaft of the auxiliary motor 18. A rope 20 is wound around the wire wheel 19, and the free end of the rope 20 is fixed to the lower bracket 4.

[0026] In order to prevent water from accumulating inside the outer shell 1 , a plurality of drainage holes 21 are provided at the bottom of the outer shell 1 .

[0027] In order to realize that the main joint 7 and the auxiliary joint 8 can be connected after docking, and can be closed separately after separation; the main joint 7 and the auxiliary joint 8 are both one-way valves, and a push rod is fixed on the valve core inside the one-way valve; the push rods of the main joint 7 and the auxiliary joint 8 are opposite.

[0028] In order to allow the fruits and vegetables in the filter frame 5 to be fully poured onto the receiving plate 11 , the bottom of the filter frame 5 is inclined, and an extended rubber pad is installed at one end of the receiving plate 11 inside the outer shell 1 .

[0029] For better cleaning, the main joint 7 of the E station is connected to a detergent box, the detergent box has a certain pressure, the pressure of the water inlet pipe is greater than the pressure in the detergent box, and the main joints 7 of the C station and the D station are blocked by plugs.

[0030] In order to realize automatic cleaning, the control method is:

[0031] Step 1: The auxiliary motor 18 reverses to make the water tank 6 drop down to be out of contact with the filter frame 5, and the filter frame 5 drains the water and drops the water into the water tank 6;

[0032] Step 2: The stepper motor rotates to make the upper bracket 3 rotate 72 degrees counterclockwise, and the lower bracket 4 rotates 72 degrees clockwise, and the filter frame 5 and the water tank 6 are fed one station respectively; at this time, the fruits and vegetables in the filter frame 5 corresponding to the B station begin to fall.

[0033] Step 3: The auxiliary motor 18 reverses to drive the water tank 6 down to the point where the main joint 7 and the auxiliary joint 8 are connected; at this time, the water in the water tank 6 corresponding to the A station is emptied, and the water tank 6 corresponding to the B station is filled with water;

[0034] Step 4: The auxiliary motor 18 rotates forward, driving the water tank 6 to rise to the maximum stroke and sleeved on the outside of the filter frame 5;

[0035] Step 5: Wait for soaking and add new fruits and vegetables into the feeding hopper 9.

[0036] In the present invention, the filter frames 5 are designed to be five and rotate counterclockwise, with station A as the starting point, the corresponding station A is responsible for loading, the corresponding stations E, D and C are responsible for soaking and cleaning, and the corresponding station B is responsible for unloading. The corresponding water tanks 6 are also designed to be five and rotate clockwise, with station A as the starting point, the corresponding station A is responsible for drainage, the corresponding station B is responsible for adding water, and the corresponding stations C, D and E are responsible for soaking and cleaning; wherein cleaning agents can be added to stations C, D and E, and the cleaning agents added by the three should preferably not interact with each other, that is, they are all acidic or alkaline, and salt water can be added at will without any reaction.

[0037] Through the above design, it can be known that the fruits and vegetables are fed in a counterclockwise direction, while the water tank is fed in a clockwise direction. The fruits and vegetables are soaked and washed in the three stations E, D, and C in sequence. The concentration of pesticide residues in the water tank 6 decreases from E, D, and C in sequence, and the C station is rinsed with clean water.

[0038] Therefore, after continuous washing, the fruits and vegetables will first enter the water tank 6 corresponding to the E station for washing. The concentration of drug residues in the water tank 6 is relatively high. Take strawberries as an example. At this time, the concentration of drug residues on the surface of the strawberries corresponding to the E station and the content of dust are also relatively high. Through preliminary washing, the dust and agricultural residues on the surface of the strawberries can be preliminarily cleaned. Then, the water in the E station will be transferred to the A station for emptying.

[0039] Then the strawberries will enter the D station for cleaning. The water in the water tank 6 of the D station has less drug residue and dust content. At this time, after the strawberries are soaked in the D station for a certain period of time, most of the drug residue can be removed.

[0040] The strawberries will then enter station C for cleaning. The water in station C can further rinse and soak the small amount of pesticide residues remaining on the surface of the strawberries, thereby achieving thorough cleaning of the strawberries.

[0041] Finally, the strawberries after three-stage cleaning will fall into the discharge port 10 corresponding to the B station.

[0042] The above is an explanation based on the running trajectory of strawberries. The strawberries are washed three times respectively. At the same time, it is best to add a cleaning agent at the E station, which will have a better effect. Most of the pesticide residues can be separated at the E station, and the water with high pesticide residues can be directly discarded.

[0043] Since it is difficult to completely remove pesticide residues with just one traditional wash, the strawberries in this device will be rinsed three times, and the water quality will get better and better, so that the pesticide residues can be completely removed.

[0044] Another aspect of the description is described below using the motion trajectory of the water tank 6.

[0045] First, the clean water corresponding to station C will be used to rinse the strawberries that have been washed twice, so the clean water at station C can ensure that the pesticide residues on the surface of the tank after rinsing are minimal; at the same time, the strawberries have been rinsed twice, so the water at station C does not contain a high concentration of pesticide residues, so it can be fed to station D for a second rinse of the strawberries that have been rinsed once; similarly, the water at station D has been used twice at this time, and the pesticide residue content has gradually increased. Finally, the water at station D will be fed to station E for the initial rinse of the unrinsed strawberries to rinse away the floating dust, insect eggs, pesticide residues and other residues on the surface of the strawberries. At the same time, cleaning agents can be added to station E for a more powerful rinse, and finally it will be emptied at station A.

[0046] The embodiment of water saving of the device is that the conventional one generally uses a large water tank 6, and the repeated washing requires a large amount of water each time. However, the device adopts a small batch soaking method, and the fruits and vegetables in the filter frame 5 already occupy a large space, so only a small amount of water is needed in the water tank 6 to achieve the complete immersion of the fruits and vegetables.

[0047] And because less water is used each time, clean water can be continuously added to achieve a method similar to flushing with running water, but for the purpose of intermittent cleaning, thereby obtaining a better cleaning and soaking effect.

[0048] This device uses a small batch of water flow each time, so that the water can be replaced quickly, thereby ensuring that each batch of fruits and vegetables can be washed with clean water when being washed. At the same time, the circulation method is used to realize the reuse of water, which achieves the purpose of saving water and multi-stage washing, and accelerates the washing process.

[0049] In the device, the fruits and vegetables rotate intermittently counterclockwise, coordinated with the clockwise intermittent rotation of the water tank 6, and the loading and unloading of fruits and vegetables, as well as the water inlet and outlet of the water tank 6 are designed, so that fast multi-stage fruit and vegetable cleaning is achieved, and the influence of untimely water replacement on the cleaning effect is avoided. At the same time, multi-stage cleaning can also be achieved, which improves the cleaning effect and reduces agricultural residues.

Claims

1. An automatic fruit and vegetable soaking and cleaning machine, comprising an outer shell (1), a vertical rotating shaft (2) being arranged in the middle of the outer shell (1), characterized in that: An upper bracket (3) and a lower bracket (4) are mounted on the rotating shaft (2); the upper bracket (3) and the lower bracket (4) can rotate synchronously and intermittently, and the upper bracket (3) and the lower bracket (4) rotate in opposite directions; a plurality of filter frames (5) are evenly distributed on the upper bracket (3); a plurality of water tanks (6) corresponding to the filter frames (5) are evenly distributed on the lower bracket (4); the lower bracket (4) moves upward so that the water tank (6) is sleeved on the outer side of the filter frame (5); the lower bracket (4) moves downward so that the water tank (6) and the filter frame (5) are separated; The set of filter frames (5) and water tanks (6) corresponding to each other above and below constitute a workstation; a plurality of main joints (7) corresponding to the plurality of workstations are fixed on the bottom of the outer shell (1), and a vertical auxiliary joint (8) is installed at the bottom of each water tank (6); the main joint (7) and the auxiliary joint (8) can be connected after docking, and can be closed separately after separation; A feeding hopper (9) corresponding to one of the workstations is fixed on the upper part of the outer shell (1), a discharge port (10) corresponding to one of the workstations is arranged on the side wall of the outer shell (1), and an inclined receiving plate (11) is arranged at the discharge port (10); the workstation of the discharge port (10) is adjacent to the workstation corresponding to the feeding hopper (9); The main joint (7) corresponding to the discharge port (10) is connected to the water inlet pipe via a pipeline, the main joint (7) corresponding to the feeding hopper (9) is connected to the waste water tank via a pipeline, and some of the other main joints (7) are connected to the cleaning agent via a pipeline; A baffle plate (12) that can move up and down is arranged on the side of the filter frame (5) that is away from the rotating shaft (2), and a lever (13) is fixed on the baffle plate (12). A circle of concave annular grooves (14) is arranged on the inner side wall of the outer shell (1), and a position on the annular groove (14) corresponding to the discharge port (10) protrudes upward, and the lever (13) is placed in the annular groove (14).

2. The automatic fruit and vegetable soaking and cleaning machine according to claim 1, characterized in that: The central parts of the upper bracket (3) and the lower bracket (4) are both provided with sleeves sleeved on the rotating shaft (2); the sleeve corresponding to the upper bracket (3) is rotatably connected to the rotating shaft (2); the sleeve corresponding to the lower bracket (4) is spline-connected to the rotating shaft (2); a stepper motor (15) is fixed to the outer shell (1); a first bevel gear (16) is provided on the output shaft of the stepper motor (15); and a second bevel gear (17) meshing with the first bevel gear (16) is provided on the rotating shaft (2) and the sleeve corresponding to the upper bracket (3).

3. The automatic fruit and vegetable soaking and cleaning machine according to claim 1, characterized in that: The filter frame (5) and the water tank (6) are each provided with five, the station corresponding to the feeding hopper (9) is station A, and the stations are station B, station C, station D, and station E in clockwise order, wherein station B corresponds to the discharge port (10).

4. The automatic fruit and vegetable soaking and cleaning machine according to claim 1, characterized in that: An auxiliary motor (18) is fixed on the rotating shaft (2), a wire wheel (19) is installed on the output shaft of the auxiliary motor (18), a rope (20) is wound around the wire wheel (19), and the free end of the rope (20) is fixed to the lower bracket (4).

5. The automatic fruit and vegetable soaking and cleaning machine according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a plurality of drainage holes (21).

6. The automatic fruit and vegetable soaking and cleaning machine according to claim 1, characterized in that: The main joint (7) and the auxiliary joint (8) are both one-way valves, and a push rod is fixed on the valve core inside the one-way valve; the push rods of the main joint (7) and the auxiliary joint (8) are opposite to each other.

7. The control method of the automatic fruit and vegetable soaking and cleaning machine according to claim 1, wherein the steps are as follows: Step 1: the auxiliary motor (18) is reversed to make the water tank (6) descend until it is out of contact with the filter frame (5), and the filter frame (5) drains the water and the water falls into the water tank (6); Step 2: The stepper motor rotates to rotate the upper support (3) counterclockwise (72 degrees), and at the same time the lower support (4) rotates clockwise (72 degrees), and the filter frame (5) and the water tank (6) are respectively fed to one station; at this time, the fruits and vegetables in the filter frame (5) corresponding to station B begin to fall; Step 3: The auxiliary motor (18) rotates in reverse, driving the water tank (6) to descend until the main joint (7) and the auxiliary joint (8) are connected; at this time, the water in the water tank (6) corresponding to the A station is emptied, and the water tank (6) corresponding to the B station is filled with water; Step 4: The auxiliary motor (18) rotates forward, driving the water tank (6) to rise to the maximum stroke and to be sleeved on the outside of the filter frame (5); Step 5: Wait for soaking and add new fruits and vegetables into the feeding hopper (9).

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