A kind of preparation method of oatmeal food

Abstract

The invention belongs to the technical field of food processing, in particular to a method for preparing oatmeal food, comprising the following steps: S1: performing low-temperature maturation treatment on oats, and after the maturation treatment is completed, screening oatmeal particles to select oatmeal particles with complete particle shapes; S2: coating the surfaces of the selected oatmeal particles with complete shapes with a layer of milk powder, and drying the coated oats to obtain oatmeal components; S3: adding liquid food components and oatmeal components to a mixing device, mixing the two to obtain a finished oatmeal food; the invention uses milk powder to coat oatmeal particles, thereby avoiding or reducing the crushing and breaking of oatmeal particles, ensuring good quality and taste of oatmeal food, and in the production process, using a cleaning plate and a stirring rod to clean the inside of the mixing device, reducing oatmeal food residues and promoting the discharge of oatmeal food from the mixing device, thereby ensuring product quality and production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of food processing, in particular to a method for preparing oatmeal food. Background Art

[0002] Oatmeal rice is one of the grains with high nutritional value recognized in the world. The fat content of oatmeal rice is 4 times that of rice, and it contains multiple amino acids needed by the human body. Adding oatmeal grains to liquid foods, such as yogurt, porridge and other relatively viscous foods, will increase the chewiness, bring richer flavor and taste, and bring health and satisfaction to consumers.

[0003] In existing oatmeal foods, oatmeal particles are easily damaged and broken, which greatly damages the integrity of the oatmeal particles, causes the starch in the oats to flow out, and the oatmeal particles to lose their shape, so that the chewy texture of the oatmeal particles disappears, affecting the taste of the oatmeal food products. In addition, since the fat combined with starch or protein in the oats is released, the fat content will increase, and excessive processing will significantly reduce the mineral content in the oats.

[0004] During the production process, the pretreated oatmeal particles are added to the liquid food components and evenly mixed with the liquid food components through a mixing device. Afterwards, when the mixed oatmeal food is discharged, the viscosity of the liquid food makes the flow rate of the oatmeal food slow during discharge. In particular, after most of the oatmeal food is discharged, the gravity squeeze is lost and most of the oatmeal food remaining at the bottom of the inner wall cannot be discharged. As a result, a large amount of raw materials will adhere to the inner wall, which will form dirt after long-term use, affecting the normal production of subsequent oatmeal food and product quality. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, milk powder is used to wrap oat particles to avoid or reduce the breakage and fragmentation of oat particles, thereby ensuring the good quality and taste of oat food. In addition, during the production process, a cleaning plate and a stirring rod are used to clean the inside of a mixing device to reduce oat food residues and promote the discharge of oat food from the mixing device to ensure product quality and production efficiency. The present invention proposes a method for preparing oat food.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a method for preparing an oatmeal food according to the present invention, the method comprising the following steps:

[0007] S1: performing low-temperature maturation treatment on oats, and after the maturation treatment is completed, screening the oat particles to select oat particles with complete particle shapes;

[0008] S2: coating the surface of the selected oat particles with complete shapes with a layer of milk powder, and drying the coated oats to obtain oat components;

[0009] S3: adding the liquid food component and the oat component to a mixing device, and mixing the liquid food component and the oat component to obtain a finished oat food;

[0010] Wherein, the milk powder in step S2 is common commercially available milk powder, and the milk powder wrapped on the surface of the oats after drying in step S2 forms a shell layer;

[0011] The mixing device comprises a tank body, a feed pipe and a discharge pipe are installed on the tank body, a tank cover is installed on the tank body, a motor is installed on the tank cover, a rotating shaft is installed on the motor, a sliding ring is installed on the rotating shaft, a stirring rod is installed on the sliding ring, an elastic rod is installed between the stirring rods, and the rotating shaft and the sliding ring are connected by a spline;

[0012] A cleaning plate is installed on the rotating shaft, and the cleaning plate is above the stirring rod. A sliding seal is formed between the cleaning plate and the inner wall of the tank body. An air inlet pipe is installed on the tank cover, and a locking groove is installed on the tank cover. An electromagnet is installed on the locking groove. A card block is installed on the cleaning plate, and the electromagnet locks the card block.

[0013] Preferably, a mounting ring is installed at one end of the stirring rod close to the rotating shaft, the mounting ring and the stirring rod rotate relatively, and the elastic rod is hinged on the mounting ring;

[0014] The elastic rod is in a spiral shape, the projection of the elastic rod on the horizontal plane is in a ring shape, and the projections of the stirring rods on the horizontal plane do not contact each other.

[0015] Preferably, the openings of the feed pipe and the discharge pipe in the tank body are located below the tank body.

[0016] Preferably, a cavity is provided in the cleaning plate, a spray hole is provided on the cleaning plate, the spray hole and the cavity are connected to each other, a cleaning pipe is installed on the tank cover, the cleaning pipe is connected to the cavity, and the cleaning pipe is an elastic telescopic pipe;

[0017] A swivel is installed on the rotating shaft, the swivel is connected to the rotating shaft via a spline, and the cleaning plate is rotatably installed on the swivel.

[0018] Preferably, an upper scraper is installed on the stirring rod on the rotating shaft near one end of the cleaning plate, and a lower scraper is installed on the stirring rod on the rotating shaft near the bottom surface of the tank body;

[0019] The upper scraper blade contacts the lower surface of the cleaning plate, and the lower scraper blade contacts the bottom surface in the tank body.

[0020] Preferably, the surfaces of the stirring rod, the rotating shaft and the elastic rod are covered with hydrophobic material, and the speed of the motor is adjusted by a controller.

[0021] Preferably, the upper scraper comprises a vertical section and an oblique scraping section, and the side surface of the oblique scraping section is in contact with the inner wall of the tank body.

[0022] Preferably, an elastic layer is installed on the cleaning plate, and the elastic layer is located between the cleaning plate and the inner wall of the tank;

[0023] The inner diameter of the inner wall of the tank body gradually decreases from top to bottom, and the difference in diameter between the upper and lower ends of the inner wall of the tank body is smaller than the allowable deformation range of the elastic layer.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The method for preparing an oatmeal food of the present invention comprises wrapping and drying oatmeal particles with milk powder to form a shell layer on the surface of the oatmeal particles to protect the oatmeal particles, thereby avoiding or reducing the breakage and fragmentation of the oatmeal particles during the production process, and allowing the oatmeal particles in the oatmeal food to maintain a complete shape as much as possible, thereby ensuring the quality and good taste of the oatmeal food.

[0026] 2. The method for preparing oatmeal food described in the present invention comprises the following steps: providing a cleaning plate, a stirring rod and an elastic rod. After the oatmeal component and the liquid food component are mixed, the cleaning plate is moved downward to increase the pressure in the space below the cleaning plate, thereby promoting the discharge of the oatmeal food in the mixing device and accelerating the production efficiency. At the same time, when the cleaning plate moves downward, the stirring rod and the elastic rod are pressed close to each other, which reduces the size of the space occupied by the stirring rod, thereby reducing the size of the space that needs to be cleaned due to the residual oatmeal food in the mixing device and avoiding the existence of cleaning dead corners, thereby facilitating the cleaning of the mixing device and improving the cleaning effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a flowchart of the steps of the preparation method of the present invention;

[0029] Figure 2 is a front view of a mixing device used in the preparation method of the present invention;

[0030] Figure 3 is a cross-sectional view of a mixing device used in the preparation method of the present invention;

[0031] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0032] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle;

[0033] Figure 6 yes Figure 3 A partial enlarged view of point C in the middle;

[0034] Figure 7 yes Figure 3 A partial enlarged view of point D in the middle;

[0035] Figure 8 yes Figure 3 A partial enlarged view of point E in the middle;

[0036] In the figure: tank body 1, tank cover 11, air inlet pipe 111, cleaning pipe 112, locking groove 13, electromagnet 131, motor 2, rotating shaft 21, stirring rod 3, sliding ring 31, elastic rod 32, mounting ring 321, upper scraper 33, vertical section 331, oblique scraper section 332, lower scraper 34, cleaning plate 4, block 41, cavity 42, spray hole 421, rotating ring 43, elastic layer 44. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 8 As shown, a method for preparing an oatmeal food according to the present invention comprises the following steps:

[0039] S1: performing low-temperature maturation treatment on oats, and after the maturation treatment is completed, screening the oat particles to select oat particles with complete particle shapes;

[0040] S2: coating the surface of the selected oat particles with complete shapes with a layer of milk powder, and drying the coated oats to obtain oat components;

[0041] S3: adding the liquid food component and the oat component to a mixing device, and mixing the liquid food component and the oat component to obtain a finished oat food;

[0042] Wherein, the milk powder in step S2 is common commercially available milk powder, and the milk powder wrapped on the surface of the oats after drying in step S2 forms a shell layer;

[0043] The mixing device comprises a tank body 1, a feed pipe and a discharge pipe are installed on the tank body 1, a tank cover 11 is installed on the tank body 1, a motor 2 is installed on the tank cover 11, a rotating shaft 21 is installed on the motor 2, a sliding ring 31 is installed on the rotating shaft 21, a stirring rod 3 is installed on the sliding ring 31, an elastic rod 32 is installed between the stirring rods 3, and the rotating shaft 21 and the sliding ring 31 are connected by a spline;

[0044] The rotating shaft 21 is provided with a cleaning plate 4, the cleaning plate 4 is above the stirring rod 3, the cleaning plate 4 is slidably sealed with the inner wall of the tank body 1, the tank cover 11 is provided with an air inlet pipe 111, the tank cover 11 is provided with a locking groove 113, the locking groove 113 is provided with an electromagnet 114, the cleaning plate 4 is provided with a card block 41, the electromagnet 114 locks the card block 41;

[0045] The oats are subjected to low-temperature maturation treatment to avoid loss of oat nutrients as much as possible, and then the oats are wrapped with milk powder so that the surface of the maturated oats is covered with a shell layer formed by the milk powder. At the same time, since there will be water vapor on the surface of the oats after the maturation treatment, the surface of the oats is relatively moist, so that the part of the milk powder forming the shell layer close to the oat particles absorbs water and becomes muddy. Then, the wrapped oat particles are dried to harden and solidify the shell layer formed by the milk powder wrapping, especially the muddy milk powder layer close to the surface of the oat particles, so that the oat particles are protected and isolated by the shell layer formed by the milk powder, so that when the oat particles are subsequently mixed with the liquid food components, the complete shape of the oat particles is guaranteed as much as possible to avoid the oat particles from breaking and fragmenting, which affects the quality and taste of the oat food product;

[0046] At the same time, by using milk powder to wrap oat particles, the additional additives used in the production process can be reduced, ensuring the safety and health of oat food products. At the same time, since milk powder is also a food raw material, after the oat particles are wrapped with milk powder, the milk powder will gradually dissolve and merge into the liquid food component to release the oat particles, and there is no need to subsequently dissociate and remove the coating layer on the oat particles, ensuring that consumers have a good taste when tasting oat food, and reducing the number of process steps in the production process, reducing production costs and improving production efficiency.

[0047] At the same time, after the liquid food component and the oat component are fed into the tank body 1 of the mixing device through the feed pipe, the motor 2 is controlled by the controller to operate, thereby driving the rotating shaft 21 and the stirring rod 3 to stir and mix the liquid food component and the oat in the tank body 1. After the two are mixed, the valve on the discharge pipe is opened to discharge the mixed oat food from the mixing device;

[0048] At the same time, when the mixed oatmeal food is discharged, the controller controls the external air source to fill the space between the tank cover 11 and the cleaning plate 4 with gas through the air inlet pipe 111, and the cleaning plate 4 is gradually moved downward by the gas pressure, and the space below the cleaning plate 4 in the tank body 1 is squeezed to increase the pressure in the space below the cleaning plate 4, thereby promoting the discharge of the mixed oatmeal food in the tank body 1, avoiding the situation that the oatmeal food has a high viscosity and is not easy to flow and discharge quickly, thereby accelerating the discharge speed of the oatmeal food in the mixing equipment and improving the production efficiency;

[0049] At the same time, as the cleaning plate 4 moves downward, the cleaning plate 4 will push the oatmeal food attached to the inner wall of the tank body 1 downward together, so as to prevent the oatmeal food from remaining on the inner wall of the tank body 1, and to prevent the oatmeal food remaining on the inner wall and the bottom from being unable to be discharged after most of the oatmeal food is discharged due to the loss of gravity squeezing, causing waste and contamination of the oatmeal food to be subsequently processed;

[0050] At the same time, when the cleaning plate 4 moves downward, the stirring rods 3 connected to the rotating shaft 21 through the spline will also be gradually squeezed closer, and cooperate with the elastic rods 32 connected between the stirring rods 3, so that the distance between the stirring rods 3 is reduced, and the space occupied by the stirring rods 3 in the tank body 1 is also reduced. After that, the clean water used for cleaning from the outside is input into the tank body 1 from the feed inlet or the specially provided cleaning port, and the rotating shaft 21, the stirring rod 3 and the inner wall of the tank body 1 are cleaned, so as to improve the cleaning effect and efficiency, reduce the possibility of residual oatmeal food in the cleaning dead corner, and at the same time, because the stirring rods 3 are squeezed and close to each other, the space occupied is reduced, so that the space under the cleaning plate 4 where the oatmeal food remains and needs to be cleaned is relatively reduced, so that it is convenient to clean the mixing equipment after the input of clean water, and improve the cleaning effect;

[0051] At the same time, after the cleaning is completed, under the control of the controller, the external air source introduces negative pressure into the space above the cleaning plate 4, so that the cleaning plate 4 moves upward again to the initial position. At this time, the block 41 on the cleaning plate 4 is inserted into the locking groove 113. Thereafter, the controller controls the electromagnet 114 to operate and lock the block 41, thereby ensuring that the position of the cleaning plate 4 in the tank body 1 is fixed when the mixing equipment is running. At the same time, after the cleaning plate 4 returns to the initial position, each stirring rod 3 is no longer squeezed, so that under the action of the elastic elastic rod 32, each stirring rod 3 moves upward again, so that each stirring rod 3 also returns to the initial position, waiting for the subsequent oat component and liquid food component to be mixed to obtain a mixed oat food.

[0052] As an embodiment of the present invention, a mounting ring 321 is installed at one end of the stirring rod 3 close to the rotating shaft 21, and the mounting ring 321 rotates relatively with the stirring rod 3, and the elastic rod 32 is hinged on the mounting ring 321;

[0053] The elastic rod 32 is in a spiral shape, and the projection of the elastic rod 32 on the horizontal plane is annular, and the projections of the stirring rods 3 on the horizontal plane do not touch each other;

[0054] When the stirring rod 3 is squeezed and moves upward or returns to the initial position without being squeezed, the elastic rod 32 will be elastically deformed, thereby driving the stirring rod 3 to relatively move on the rotating shaft 21. During this process, the position angle between the elastic rod 32 and the stirring rod 3 is prone to change. By installing a rotating mounting ring 321 on the stirring rod 3, the change in the position angle of the elastic rod 32 between the stirring rods 3 when the stirring rod 3 moves is compensated, thereby preventing the elastic rod 32 from causing the two adjacent stirring rods 3 to get stuck when the stirring rod 3 moves, or forcibly squeezing the elastic rod 32 between the stirring rods 3 to plastically deform or bend, thereby affecting the normal use of the mixing device.

[0055] At the same time, since the projections of the stirring rods 3 on the horizontal plane do not touch each other, when the stirring rods 3 are squeezed and move downward, the stirring rods 3 can be staggered with each other to avoid overlap and obstruction between the stirring rods 3, and to reduce the size of the space occupied by the stirring rods 3 after being compressed as much as possible, and to avoid overlapping or overlapping to produce dead corners, thereby facilitating the cleaning of the mixing equipment and improving the cleaning effect and efficiency.

[0056] As an embodiment of the present invention, the openings of the feed pipe and the discharge pipe in the tank body 1 are located below the tank body 1;

[0057] At least two feeding pipes are installed on the tank body 1 so as to simultaneously feed the liquid food component and the oat component into the tank body 1 according to the mixing ratio, so that the two will first contact each other at the bottom of the tank body 1, and the oat component and the liquid food component fed into the tank body 1 will be stirred by the stirring rod 3 to promote the full mixing of the two. At the same time, as the oat component and the liquid food component fed into the tank body 1 increase, the first fed and mixed oat component and liquid food component will be pushed up, so that the unmixed oat component and liquid food component are located at the bottom of the tank body 1, so as to facilitate the mixing of the two, and avoid the situation that after adding from the top of the tank body 1, the oat component is fed into the tank body 1, and the oat component floats on the surface of the liquid food component, making it difficult for the oat component and the liquid food component to mix or the mixing effect is poor, thereby ensuring good production efficiency and product quality.

[0058] As an embodiment of the present invention, a cavity 42 is formed in the cleaning plate 4, a spray hole 421 is formed on the cleaning plate 4, the spray hole 421 is connected to the cavity 42, a cleaning pipe 112 is installed on the tank cover 11, the cleaning pipe 112 is connected to the cavity 42, and the cleaning pipe 112 is an elastic telescopic pipe;

[0059] A swivel 43 is mounted on the rotating shaft 21, the swivel 43 is connected to the rotating shaft 21 via a spline, and the cleaning plate 4 is rotatably mounted on the swivel 43;

[0060] After the stirring rods 3 move downward and contact each other, the cleaning plate 4 reaches the limit of downward movement. At this time, the motor 2 is kept running so that the stirring rods 3 continue to move after contacting each other, stirring the remaining oatmeal food in the space below the cleaning plate 4, and promoting the discharge of this part of the remaining oatmeal food from the tank body 1. After that, after the mixed oatmeal food is discharged, the controller controls the external water source to enter the cavity 42 through the cleaning pipe 112, and then the clean water in the cavity 42 is sprayed out from the spray hole 421, so as to clean the stirring rod 3 below the cleaning plate 4 and the inner wall of the tank body 1, and the sewage after cleaning is discharged from the specially set sewage outlet;

[0061] At the same time, due to the relative rotation between the rotating ring 43 and the cleaning plate 4, when clean water is sprayed out from the spray hole 421, the stirring rod 3 will continue to rotate, so as to fully clean the stirring rod 3 and avoid cleaning dead corners, resulting in the presence of oatmeal food residues, affecting the normal use of subsequent mixing equipment.

[0062] As an embodiment of the present invention, an upper scraper 33 is installed on the stirring rod 3 on the rotating shaft 21 near one end of the cleaning plate 4, and a lower scraper 34 is installed on the stirring rod 3 on the rotating shaft 21 near the inner bottom surface of the tank body 1;

[0063] The upper scraper 33 contacts the lower surface of the cleaning plate 4, and the lower scraper 34 contacts the bottom surface of the tank body 1;

[0064] When the stirring rod 3 rotates, the lower scraper 34 on the stirring rod 3 at the bottom of the tank body 1 will scrape the bottom surface of the tank body 1, promoting the stirring of the material near the bottom surface of the tank body 1, thereby stirring and mixing the oat component and liquid food component just fed into the tank body 1, improving the mixing effect and efficiency. At the same time, when the cleaning plate 4 moves downward to the extreme position, the lower scraper 34 will clean the oat food remaining on the bottom surface of the tank body 1, so as to discharge the oat food on the bottom surface, avoid the oat food remaining on the bottom surface of the tank body 1, and cause waste. At the same time, the upper scraper 33 on the uppermost stirring rod 3 in the tank body 1 will also scrape and clean the lower surface of the cleaning plate 4, so that the oat food remaining on the lower surface of the cleaning plate 4 is cleaned up, thereby avoiding the oat food remaining in the area between the spray holes 421 on the lower surface of the cleaning plate 4, affecting the cleaning effect of the mixing equipment, so that the mixing equipment cannot be used normally later.

[0065] As an embodiment of the present invention, the surfaces of the stirring rod 3, the rotating shaft 21, and the elastic rod 32 are covered with a hydrophobic material, and the speed of the motor 2 is adjusted by a controller;

[0066] By covering the surface of the stirring rod 3, the rotating shaft 21 and the elastic rod 32 with hydrophobic material, the possibility of oatmeal food in the mixing device adhering to the surface thereof is reduced or the adhesive force of the oatmeal food when adhering to the surface thereof is reduced. Afterwards, the rotation speed of the motor 2 is adjusted by the controller. After the oatmeal food in the tank body 1 is discharged, the rotation speed of the motor 2 is accelerated, so that the rotation speed of the stirring rod 3 is increased, so as to utilize the centrifugal force to promote the separation of the residual oatmeal food. Afterwards, the separated oatmeal food will be discharged again under the action of the upper scraper 33 and the lower scraper 34, which may reduce the amount of residual oatmeal food in the mixing device, reduce waste and reduce the difficulty of subsequent cleaning.

[0067] As an embodiment of the present invention, the upper scraper 33 includes a vertical section 331 and an oblique scraper section 332, and the side surface of the oblique scraper section 332 is in contact with the inner wall of the tank body 1;

[0068] At the same time, the vertical section 331 on the upper scraper 33 will clean the lower surface of the cleaning plate 4, and cooperate with the controller to increase the rotation speed of the motor 2, so that the oatmeal food scraped off by the vertical section 331 is thrown out toward the inner wall of the tank body 1. At the same time, the oblique scraping section 332 will push and move the material on the inner wall of the tank body 1, so that the material is thrown out downward instead of slowly sliding downward along the inner wall of the tank body 1, so as to impact and push the material attached to the inner wall of the tank body 1, promote the material to fall from the inner wall of the tank body 1, and be driven and cleaned to the outside of the tank body 1 by the lower scraper 34, thereby minimizing the residual material in the tank body 1, that is, the amount of mixed oatmeal food, reducing waste and facilitating the cleaning of the inside of the tank body 1.

[0069] As an embodiment of the present invention, an elastic layer 44 is installed on the cleaning plate 4, and the elastic layer 44 is located between the cleaning plate 4 and the inner wall of the tank body 1;

[0070] The inner diameter of the inner wall of the tank body 1 gradually decreases from top to bottom, and the difference in diameter between the upper and lower ends of the inner wall of the tank body 1 is smaller than the allowable deformation range of the elastic layer 44;

[0071] By providing the elastic layer 44, the cleaning plate 4 and the inner wall of the tank body 1 are sealed to prevent the oatmeal food from overflowing upward from the gap between the cleaning plate 4 and the inner wall of the tank body 1 when the cleaning plate 4 moves downward. At the same time, the elastic layer 44 can also reduce the wear between the cleaning plate 4 and the inner wall of the tank body 1, thereby extending the service life of both.

[0072] At the same time, since the inner diameter of the inner wall of the tank body 1 gradually decreases from top to bottom, the sealing performance of the cleaning plate 4 when it is at the bottom of the tank body 1 is better than that when it is at the top of the tank body 1, that is, when the cleaning plate 4 is located at the top of the tank body 1, the extrusion deformation of the elastic layer 44 is relatively small, and when the feed pipe feeds material into the tank body 1, the compressed air in the space below the cleaning plate 4 is allowed to be discharged from the gap between the elastic layer 44 and the inner wall of the tank body 1, thereby avoiding continuous compression of the air in the space below the cleaning plate 4 and continuous increase in pressure, which would affect the addition of materials. At the same time, when the cleaning plate 4 moves downward and cooperates with the gravity of the mixed oatmeal food itself to empty the oatmeal food in the tank body 1, the sealing performance of the elastic layer 44 will gradually improve, effectively preventing the mixed oatmeal food from overflowing upward, affecting the normal use of the mixing equipment, and increasing the difficulty of cleaning the mixing equipment.

[0073] The specific workflow is as follows:

[0074] The oats are subjected to low-temperature maturation treatment, and then the oats are wrapped with milk powder, so that the surface of the maturated oats is covered with a shell layer formed by the milk powder to protect and isolate the oat particles;

[0075] At the same time, after the liquid food component and the oat component are fed into the tank body 1 of the mixing device through the feed pipe, the motor 2 is controlled by the controller to operate, thereby driving the rotating shaft 21 and the stirring rod 3 to stir and mix the liquid food component and the oat in the tank body 1. After the two are mixed, the valve on the discharge pipe is opened to discharge the mixed oat food from the mixing device;

[0076] At the same time, when the mixed oat food is discharged, the controller controls the external air source to fill the space between the tank cover 11 and the cleaning plate 4 through the air inlet pipe 111, and the cleaning plate 4 is gradually moved downward by the gas pressure to squeeze the space below the cleaning plate 4 in the tank body 1, so as to promote the discharge of the mixed oat food in the tank body 1;

[0077] At the same time, as the cleaning plate 4 moves downward, the cleaning plate 4 will push the oatmeal food attached to the inner wall of the tank body 1 downward together;

[0078] At the same time, when the cleaning plate 4 moves downward, the stirring rods 3 connected to the rotating shaft 21 through the spline will also be gradually squeezed closer, and cooperate with the elastic rods 32 connected between the stirring rods 3, so that the distance between the stirring rods 3 is reduced, and the space occupied by the stirring rods 3 in the tank body 1 is also reduced. After that, the clean water used for cleaning from the outside is input into the tank body 1 from the feed inlet or the specially provided cleaning inlet to clean the rotating shaft 21, the stirring rods 3 and the inner wall of the tank body 1. At the same time, because the stirring rods 3 are squeezed and close to each other, the space occupied is reduced, so that the space under the cleaning plate 4 where the oatmeal food remains and needs to be cleaned is relatively reduced;

[0079] At the same time, after the cleaning is completed, under the control of the controller, the external air source introduces negative pressure into the space above the cleaning plate 4, so that the cleaning plate 4 moves upward to the initial position again. At this time, the block 41 on the cleaning plate 4 is inserted into the locking groove 113. After that, the controller controls the electromagnet 114 to operate to lock the block 41. At the same time, after the cleaning plate 4 returns to the initial position, each stirring rod 3 is no longer squeezed. Under the action of the elastic rod 32, each stirring rod 3 moves upward again and returns to the initial position.

[0080] By installing a rotating mounting ring 321 on the stirring rod 3, the change in the position angle of the elastic rod 32 between the stirring rods 3 is compensated when the stirring rod 3 moves, so as to avoid the elastic rod 32 causing two adjacent stirring rods 3 to get stuck when the stirring rod 3 moves, or forcibly squeezing the elastic rod 32 between the stirring rods 3 to cause plastic deformation and bending;

[0081] At the same time, when the stirring rods 3 are squeezed and move downward, the stirring rods 3 can be staggered to avoid overlapping and blocking between the stirring rods 3, reduce the space occupied by the stirring rods 3 after being pressed as much as possible, and avoid overlapping or overlapping to produce dead angles;

[0082] At least two feeding pipes are installed on the tank body 1, so as to simultaneously feed the liquid food component and the oat component into the tank body 1 according to the mixing ratio, so that the two will first contact each other at the bottom of the tank body 1, and the oat component and the liquid food component fed into the tank body 1 will be stirred by the stirring rod 3 to promote the full mixing of the two. At the same time, as the oat component and the liquid food component fed into the tank body 1 increase, the first fed and mixed oat component and liquid food component will be pushed up, so that the unmixed oat component and liquid food component are located at the bottom of the tank body 1;

[0083] After the stirring rods 3 move downward and contact each other, the cleaning plate 4 reaches the limit of downward movement. At this time, the motor 2 is kept running so that the stirring rods 3 continue to move after contacting each other, stirring the remaining oatmeal food in the space below the cleaning plate 4, and promoting the remaining oatmeal food to be discharged from the tank body 1. After that, after the mixed oatmeal food is discharged, the controller controls the external water source to enter the cavity 42 through the cleaning pipe 112. After that, the clean water in the cavity 42 is sprayed out from the spray hole 421 to clean the stirring rod 3 below the cleaning plate 4 and the inner wall of the tank body 1. The sewage after cleaning is discharged from the specially set sewage outlet;

[0084] At the same time, due to the relative rotation between the rotating ring 43 and the cleaning plate 4, when the clean water is sprayed out from the spray hole 421, the stirring rod 3 will continue to rotate, so as to fully clean the stirring rod 3 and avoid the existence of cleaning dead corners;

[0085] When the stirring rod 3 rotates, the lower scraper 34 on the stirring rod 3 at the bottom of the tank body 1 will scrape the bottom surface of the tank body 1 to promote the stirring of the material near the bottom surface of the tank body 1. At the same time, when the cleaning plate 4 moves downward to the extreme position, the lower scraper 34 will clean the oatmeal food remaining on the bottom surface of the tank body 1. At the same time, the upper scraper 33 on the stirring rod 3 at the top of the tank body 1 will also scrape and clean the lower surface of the cleaning plate 4.

[0086] The hydrophobic material covering the surfaces of the stirring rod 3, the rotating shaft 21 and the elastic rod 32 reduces the possibility of the oatmeal food in the mixing device adhering to the surfaces thereof or reduces the adhesive force of the oatmeal food when adhering to the surfaces thereof. Afterwards, the rotation speed of the motor 2 is adjusted by the controller. After the oatmeal food in the tank 1 is discharged, the rotation speed of the motor 2 is accelerated, so that the rotation speed of the stirring rod 3 is increased, so as to utilize the centrifugal force to promote the separation of the residual oatmeal food. Afterwards, the separated oatmeal food is discharged again under the action of the upper scraper 33 and the lower scraper 34.

[0087] At the same time, the vertical section 331 on the upper scraper 33 will clean the lower surface of the cleaning plate 4, and cooperate with the controller to increase the rotation speed of the motor 2, so that the oatmeal food scraped by the vertical section 331 is thrown out toward the inner wall of the tank body 1. At the same time, the oblique scraper section 332 will push and move the material on the inner wall of the tank body 1, so that the material is thrown out downward instead of slowly sliding down along the inner wall of the tank body 1, so as to impact and push the material attached to the inner wall of the tank body 1, promote the material to fall from the inner wall of the tank body 1, and be driven by the lower scraper 34 and cleaned to the outside of the tank body 1;

[0088] By providing the elastic layer 44, the cleaning plate 4 and the inner wall of the tank body 1 are kept sealed, thereby reducing the wear between the cleaning plate 4 and the inner wall of the tank body 1;

[0089] At the same time, since the inner diameter of the inner wall of the tank body 1 gradually decreases from top to bottom, the sealing performance of the cleaning plate 4 when it is at the bottom of the tank body 1 is better than that when it is at the top of the tank body 1, that is, when the cleaning plate 4 is located at the top of the tank body 1, the extrusion deformation of the elastic layer 44 is relatively small, and when the feed pipe feeds material into the tank body 1, the compressed air in the space below the cleaning plate 4 is allowed to be discharged from the gap between the elastic layer 44 and the inner wall of the tank body 1, thereby avoiding continuous compression of the air in the space below the cleaning plate 4 and continuous increase in pressure, which would affect the addition of materials. At the same time, when the cleaning plate 4 moves downward and cooperates with the gravity of the mixed oatmeal food itself to empty the oatmeal food in the tank body 1, the sealing performance of the elastic layer 44 will gradually improve, effectively preventing the mixed oatmeal food from overflowing upward, affecting the normal use of the mixing equipment, and increasing the difficulty of cleaning the mixing equipment.

[0090] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preparing oatmeal food, characterized in that: The method comprises the following steps: S1: performing low-temperature maturation treatment on oats, and after the maturation treatment is completed, screening the oat particles to select oat particles with complete particle shapes; S2: coating the surface of the selected oat particles with complete shapes with a layer of milk powder, and drying the coated oats to obtain oat components; S3: adding the liquid food component and the oat component to a mixing device, and mixing the liquid food component and the oat component to obtain a finished oat food; Wherein, the milk powder in step S2 is common commercially available milk powder, and the milk powder wrapped on the surface of the oats after drying in step S2 forms a shell layer; The mixing device comprises a tank body (1), a feed pipe and a discharge pipe are mounted on the tank body (1), a tank cover (11) is mounted on the tank body (1), a motor (2) is mounted on the tank cover (11), a rotating shaft (21) is mounted on the motor (2), a sliding ring (31) is mounted on the rotating shaft (21), a stirring rod (3) is mounted on the sliding ring (31), an elastic rod (32) is mounted between the stirring rods (3), and the rotating shaft (21) and the sliding ring (31) are connected via a spline; A cleaning plate (4) is installed on the rotating shaft (21), the cleaning plate (4) is above the stirring rod (3), the cleaning plate (4) and the inner wall of the tank body (1) are slidably sealed, and an air inlet pipe (111) is installed on the tank cover (11); A mounting ring (321) is installed at one end of the stirring rod (3) close to the rotating shaft (21), the mounting ring (321) and the stirring rod (3) are relatively rotatable, and the elastic rod (32) is hinged on the mounting ring (321); The elastic rod (32) is in a spiral shape, the projection of the elastic rod (32) on the horizontal plane is in a ring shape, and the projections of the stirring rods (3) on the horizontal plane do not contact each other; The openings of the feed pipe and the discharge pipe in the tank body (1) are located below the tank body (1).

2. The method for preparing an oatmeal food according to claim 1, characterized in that: A cavity (42) is formed in the cleaning plate (4), a spray hole (421) is formed on the cleaning plate (4), the spray hole (421) and the cavity (42) are communicated with each other, a cleaning pipe (112) is installed on the tank cover (11), the cleaning pipe (112) is communicated with the cavity (42), and the cleaning pipe (112) is an elastic telescopic pipe; A rotating ring (43) is mounted on the rotating shaft (21). The rotating ring (43) is connected to the rotating shaft (21) via a spline. The cleaning plate (4) is rotatably mounted on the rotating ring (43).

3. The method for preparing an oatmeal food according to claim 2, characterized in that: An upper scraper (33) is installed on the stirring rod (3) on the rotating shaft (21) near one end of the cleaning plate (4), and a lower scraper (34) is installed on the stirring rod (3) on the rotating shaft (21) near the inner bottom surface of the tank body (1); The upper scraper (33) contacts the lower surface of the cleaning plate (4), and the lower scraper (34) contacts the bottom surface inside the tank body (1).

4. The method for preparing an oatmeal food according to claim 3, characterized in that: The surfaces of the stirring rod (3), the rotating shaft (21) and the elastic rod (32) are covered with hydrophobic material, and the rotation speed of the motor (2) is adjusted by a controller.

5. The method for preparing an oatmeal food according to claim 3, characterized in that: The upper scraper (33) comprises a vertical section (331) and an oblique scraper section (332), and the side surface of the oblique scraper section (332) is in contact with the inner wall of the tank body (1).

6. The method for preparing an oatmeal food according to claim 1, characterized in that: An elastic layer (44) is installed on the cleaning plate (4), and the elastic layer (44) is located between the cleaning plate (4) and the inner wall of the tank body (1); The inner diameter of the inner wall of the tank body (1) gradually decreases from top to bottom, and the difference in diameter between the upper and lower ends of the inner wall of the tank body (1) is smaller than the allowable deformation range of the elastic layer (44).

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