An automated beer fermentation device and its fermentation process

Abstract

This invention relates to the field of brewing technology, and particularly to an automated beer fermentation device and its fermentation process. The device includes a fermentation tank with an inlet and an outlet at its upper and lower ends, respectively. A motor is fixedly connected to the upper end of the fermentation tank, and a rotating shaft is fixedly connected to the bottom output shaft of the motor. The rotating shaft is located inside the fermentation tank, and a stirring plate is fixedly connected to the outer wall of the bottom end of the rotating shaft. An air vent is provided at the upper end of the fermentation tank. This invention provides an automated beer fermentation device and its fermentation process. The device can automatically switch the stirring speed according to different needs in the early and middle stages of fermentation. During high-speed stirring in the early stage, aeration is maintained to reduce energy consumption. During low-speed stirring in the middle stage, a defoaming function is activated. Furthermore, the defoaming mechanism 8 and the liquid stabilizing mechanism 9 work together to achieve a smoother liquid level through defoaming and to enhance the effects of stirring and defoaming through liquid stabilization, thus comprehensively optimizing the fermentation process and ultimately improving beer quality and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of brewing technology, specifically to an automated beer fermentation device and its fermentation process. Background Technology

[0002] In the beer brewing industry, automated beer fermentation equipment plays a key role in improving beer quality and production efficiency. With the development of economy and technology, people's consumption level has gradually increased, and their demand for leisure and health has also greatly increased. In the leisure field, the demand for alcohol has also increased significantly. Beer is made primarily from wheat malt and barley malt. Currently, traditional automated beer fermentation equipment usually uses a stirring mechanism.

[0003] However, existing stirring mechanisms usually do not have the function of removing bubbles. The generation of a large number of bubbles will change the rheological properties of the fermentation liquid, increase its viscosity, and affect the stirring mechanism, affecting the mixing effect during fermentation and causing uneven fermentation. Furthermore, during the fermentation process, the generation of carbon dioxide gas and the accumulation of bubbles cause violent fluctuations in the liquid level, making it impossible to effectively maintain a stable liquid level. The large fluctuations in the liquid level not only affect the normal operation of the stirring mechanism, but also cause the stirring blades to be partially exposed above the liquid surface or submerged too deeply due to abnormal liquid levels, reducing the stirring effect and ultimately affecting the quality of the beer. Summary of the Invention

[0004] To address the aforementioned problems, the present invention provides an automated beer fermentation apparatus.

[0005] This invention adopts the following technical solution: an automated beer fermentation device and its fermentation process, comprising a fermentation tank, wherein the fermentation tank is provided with an inlet and an outlet at its upper and lower ends respectively, an electric motor is fixedly connected to the upper end of the fermentation tank, a rotating shaft is fixedly connected to the bottom output shaft of the electric motor, the rotating shaft is located in the inner cavity of the fermentation tank, a stirring plate is fixedly connected to the outer wall of the bottom end of the rotating shaft, and a ventilation port is provided at the upper end of the fermentation tank, further comprising: The defoaming mechanism is designed to defoam during stirring and is located inside the fermentation tank. And a liquid stabilizing mechanism, which can effectively maintain the stability of the liquid level, is installed inside the fermentation tank.

[0006] As a further description of the above technical solution: the defoaming mechanism includes a lifting plate, which is movably disposed within the inner cavity of the fermentation tank. The outer wall of the lifting plate is in close contact with the inner wall of the fermentation tank. Guide rods are fixedly connected to two opposite sides at the upper end of the lifting plate. The upper ends of the guide rods extend to the upper side of the fermentation tank. A spring is fixedly connected between the lower surface of the upper end of the guide rod and the top of the fermentation tank. An air inlet is provided at the bottom end of the lifting plate. A sliding block is horizontally slidably disposed within the lifting plate. A spring is fixedly connected between the sliding block and the lifting plate. A connecting slot is provided within the sliding block. The upper end is provided with an exhaust slot. Insertion brackets are inserted into the upper end of the sliding block. A spring three is fixed between the bottom end of the insertion bracket and the sliding block. A trigger rod is horizontally inserted into the end of the sliding block near the rotating shaft. A spring four is fixed between the end of the trigger rod located inside the sliding block and the sliding block. A placement groove is provided inside the sliding block. The bottom end of the trigger rod is movably disposed in the placement groove. An extrusion connecting block and an extrusion protrusion are fixed to the outer wall of the rotating shaft. An inclined sliding surface one is provided on the upper side of the end of the sliding block near the rotating shaft. An inclined sliding surface two is provided on the lower side of the inclined sliding surface inside the sliding block.

[0007] As a further description of the above technical solution: the liquid stabilizing mechanism includes a floating plate, which is slidably disposed on the inner wall of the fermentation tank. A liquid guiding pipe is disposed inside the fermentation tank. One end of the liquid guiding pipe is connected to a sleeve, which is fixedly connected to the inside of the fermentation tank. The upper section of the liquid guiding pipe is connected to a connecting groove, and the other end of the connecting groove is connected to the inner cavity of the fermentation tank. A sliding column is slidably disposed inside the sleeve. One end of the sliding column is fixedly connected to the sleeve with a spring, and the other end of the sliding column is connected to the floating plate with a pulling rope.

[0008] As a further description of the above technical solution: a sealing ring is fixedly connected at the center of the bottom end of the lifting plate, and the sealing ring is in close contact with the rotating shaft.

[0009] As a further description of the above technical solution: a non-Newtonian fluid is placed in the placement groove.

[0010] As a further description of the above technical solution: the extrusion protrusions are arranged in a ring with equal spacing.

[0011] As a further description of the above technical solution: when the extrusion connecting block extrudes the inclined sliding surface one and the inclined sliding surface two, it can drive the sliding block to move upward and horizontally, respectively.

[0012] As a further description of the above technical solution: the liquid guiding pipe is arranged in a spiral shape.

[0013] Furthermore, the present invention adopts the following technical solution: a fermentation process for an automated beer fermentation device, comprising the following steps: S1. Introduce the beer fermentation raw materials into the fermentation tank through the feed inlet. After closing the feed inlet, start the motor. The motor drives the rotating shaft and the bottom stirring plate to rotate, stirring and mixing the fermentation liquid. S2. In the early stage of fermentation, high-speed stirring is required to provide oxygen for yeast to absorb and multiply. At this time, the motor rotates at high speed, the extrusion protrusion quickly extrudes the trigger rod, the non-Newtonian fluid hardens and drives the sliding block to move, so that the fermentation tank is ventilated with the outside world and energy consumption is reduced. In the middle stage of fermentation, the stirring speed is switched to low speed, the extrusion connecting block extrudes the inclined sliding surface of the sliding block, which drives the lifting plate to move up and the sliding block to move horizontally, so that the air pressure in the fermentation tank periodically drops and then recovers, accelerating the bursting of bubbles and achieving defoaming. S3. When the liquid level rises, the floating plate moves upward due to buoyancy, which pulls the sliding column through the rope, and the liquid guide pipe draws in some fermentation liquid. When the liquid level falls, the spring five drives the sliding column to reset, the liquid in the pipe flows back, and the buffer level fluctuates.

[0014] This invention provides an automated beer fermentation apparatus and its fermentation process, which, compared with the prior art, has the following improvements and advantages: Firstly, during the middle stage of fermentation, by reducing the speed of the motor, the extrusion connecting block is pressed against the inclined sliding surface of the sliding block, which drives the lifting plate to move upward and the sliding block to move horizontally. This causes the air pressure inside the fermentation tank to periodically decrease and then recover. The bubbles burst faster due to the change in the pressure difference between the inside and outside, reducing the impact of bubbles on the rheological properties of the fermentation liquid, avoiding uneven stirring, and creating a stable environment for beer fermentation. Secondly, the liquid stabilization mechanism, consisting of a floating plate, a liquid guiding pipe, and a sliding column, works by moving the floating plate upwards and pulling the sliding column when the liquid level rises, drawing in some fermentation liquid through the liquid guiding pipe. When the liquid level drops, the sliding column returns to its original position, and the liquid in the pipe flows back, effectively buffering the fluctuation of the liquid level and preventing the stirring plate from being exposed above the liquid surface or submerged too deeply due to abnormal liquid level. This ensures the continuous and stable operation of the defoaming mechanism and improves the mixing effect. Thirdly, the device can automatically switch the stirring speed according to the different needs in the early and middle stages of fermentation, which can reduce the required energy and thus reduce the operating cost; In summary, the device can automatically switch the stirring speed according to the different needs in the early and middle stages of fermentation. In the early stage, high-speed stirring is used to maintain aeration and reduce energy consumption, while in the middle stage, low-speed stirring is used to activate the defoaming function. Moreover, the defoaming mechanism and the liquid stabilizing mechanism work together to make the liquid level more stable by defoaming and to promote the stirring and defoaming effects by stabilizing the liquid, thus optimizing the fermentation process in all aspects and ultimately improving beer quality and production efficiency. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a perspective sectional view of a fermentation tank provided in an embodiment of the present invention; Figure 3 A longitudinal sectional view of the lifting plate provided in an embodiment of the present invention; Figure 4 A transverse sectional view of the lifting plate provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of inclined sliding surface one and inclined sliding surface two provided in an embodiment of the present invention; Figure 6 This is a perspective sectional view of the sleeve provided in an embodiment of the present invention; Figure 7 for Figure 3 Enlarged view of point A in the middle; Figure 8 for Figure 3 Enlarged view of point B in the middle; Figure 9 for Figure 4 A magnified view of point C in the middle.

[0016] In the diagram: 1. Fermentation tank; 2. Feed inlet; 3. Motor; 4. Discharge outlet; 5. Ventilation port; 6. Rotating shaft; 7. Stirring plate; 8. Defoaming mechanism; 81. Lifting plate; 82. Guide rod; 83. Spring 1; 84. Air inlet; 85. Sliding block; 86. Connecting slot; 87. Exhaust slot; 88. Spring 2; 89. Insertion frame; 810. Spring 3; 811. Trigger rod; 812. Spring 4; 813. Placement slot; 814. Extrusion connecting block; 815. Extrusion protrusion; 816. Inclined sliding surface 1; 817. Inclined sliding surface 2; 9. Liquid stabilizing mechanism; 91. Floating plate; 92. Liquid guiding pipe; 93. Sleeve; 94. Connecting slot; 95. Pulling rope; 96. Sliding column; 97. Spring 5; 10. Sealing ring. Detailed Implementation

[0017] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Please see Figure 1 - Figure 9 This invention provides a technical solution: an automated beer fermentation device, including a fermentation tank 1, with an inlet 2 and an outlet 4 respectively at the upper and lower ends of the fermentation tank 1. A motor 3 is fixedly connected to the upper end of the fermentation tank 1, and a rotating shaft 6 is fixedly connected to the bottom output shaft of the motor 3. The rotating shaft 6 is located inside the fermentation tank 1, and a stirring plate 7 is fixedly connected to the outer wall of the bottom end of the rotating shaft 6. A ventilation port 5 is provided at the upper end of the fermentation tank 1. The device also includes: Defoaming mechanism 8 can defoam during stirring, and defoaming mechanism 8 is set in the inner cavity of fermentation tank 1; And the liquid stabilizing mechanism 9, which can effectively maintain the stability of the liquid level, is installed inside the fermentation tank 1.

[0019] Specifically, during the middle stage of fermentation, by reducing the speed of the motor 3, the extrusion connecting block 814 extrudes the inclined sliding surface of the sliding block 85, which drives the lifting plate 81 to move upward and the sliding block 85 to move horizontally. This causes the air pressure inside the fermentation tank 1 to periodically decrease and then recover. The bubbles burst faster due to the change in the internal and external pressure difference, reducing the impact of bubbles on the rheological properties of the fermentation liquid, avoiding uneven stirring, and creating a stable environment for beer fermentation. With the help of the liquid stabilizing mechanism 9, which consists of floating plate 91, liquid guiding pipe 92, and sliding column 96, when the liquid level rises, the floating plate 91 moves upward to pull the sliding column 96, and the liquid guiding pipe 92 draws in part of the fermentation liquid. When the liquid level drops, the sliding column 96 returns to its original position, and the liquid in the pipe flows back, effectively buffering the fluctuation of the liquid level and preventing the stirring plate 7 from being exposed on the liquid surface or immersed too deeply due to abnormal liquid level. This ensures that the defoaming mechanism 8 works continuously and stably, and improves the mixing effect. The device can automatically switch the stirring speed according to the different needs in the early and middle stages of fermentation. In the early stage, high-speed stirring is used to maintain aeration and reduce energy consumption. In the middle stage, low-speed stirring is used to activate the defoaming function. The defoaming mechanism 8 and the liquid stabilizing mechanism 9 work together to make the liquid level more stable by defoaming and to promote the stirring and defoaming effects by stabilizing the liquid. This optimizes the fermentation process in all aspects and ultimately improves the quality of beer and production efficiency.

[0020] In another embodiment of the present invention, the defoaming mechanism 8 includes a lifting plate 81, which is movably disposed within the inner cavity of the fermentation tank 1. The outer wall of the lifting plate 81 is in close contact with the inner wall of the fermentation tank 1. Guide rods 82 are fixedly connected to two opposite sides of the upper end of the lifting plate 81. The upper ends of the guide rods 82 extend to the upper side of the fermentation tank 1. A spring 83 is fixedly connected between the lower surface of the upper end of the guide rods 82 and the top of the fermentation tank 1. An air inlet slot 84 is provided at the bottom end of the lifting plate 81. A sliding block 85 is horizontally slidably disposed inside the lifting plate 81. A spring 88 is fixedly connected between the sliding block 85 and the lifting plate 81. A connecting slot 86 is provided inside the sliding block 85. An exhaust slot 87 is provided at the upper end of the lifting plate 81. The upper end of the moving block 85 is provided with an insertion bracket 89. The bottom end of the insertion bracket 89 is fixedly connected to the sliding block 85 with a spring 810. The end of the sliding block 85 near the rotating shaft 6 is horizontally provided with a trigger rod 811. The end of the trigger rod 811 located inside the sliding block 85 is fixedly connected to the sliding block 85 with a spring 812. The sliding block 85 is provided with a placement groove 813. The bottom end of the trigger rod 811 is movably set in the placement groove 813. The outer wall of the rotating shaft 6 is fixedly connected with a pressing connecting block 814 and a pressing protrusion 815. The upper side of the end of the sliding block 85 near the rotating shaft 6 is provided with a first inclined sliding surface 816. The sliding block 85 is provided with a second inclined sliding surface 817 located below the first inclined sliding surface 816.

[0021] A sealing ring 10 is fixed at the center of the bottom end of the lifting plate 81, and the sealing ring 10 is in close contact with the rotating shaft 6.

[0022] A non-Newtonian fluid is placed in the placement tank 813.

[0023] The extrusion protrusions 815 are arranged in a ring with equal spacing.

[0024] When the extrusion connecting block 814 extrudes the inclined sliding surface 816 and the inclined sliding surface 817, it can drive the sliding block 85 to move upward and horizontally, respectively.

[0025] Specifically, during the middle stage of fermentation, by reducing the speed of motor 3, the extrusion connecting block 814 presses the inclined sliding surface of sliding block 85, causing lifting plate 81 to move upward and sliding block 85 to move horizontally. This causes the air pressure inside fermentation tank 1 to periodically decrease and then recover. Due to the change in internal and external pressure difference, the bubbles burst faster, reducing the impact of bubbles on the rheological properties of the fermentation liquid, avoiding uneven stirring, and creating a stable environment for beer fermentation. The device can automatically switch the stirring speed according to the different needs of the early and middle stages of fermentation. During the high-speed stirring in the early stage, aeration is maintained to reduce energy consumption, while the defoaming function is activated during the low-speed stirring in the middle stage.

[0026] In another embodiment of the present invention, the liquid stabilizing mechanism 9 includes a floating plate 91, which is slidably disposed on the inner wall of the fermentation tank 1. A liquid guiding pipe 92 is disposed inside the fermentation tank 1. One end of the liquid guiding pipe 92 is connected to a sleeve pipe 93, which is fixedly connected to the inside of the fermentation tank 1. The inner cavity of the upper section of the liquid guiding pipe 92 is connected to a connecting groove 94. The other end of the connecting groove 94 is connected to the inner cavity of the fermentation tank 1. A sliding column 96 is slidably disposed inside the sleeve pipe 93. A spring 97 is fixedly connected between one end of the sliding column 96 and the sleeve pipe 93, and a pulling rope 95 is connected between the other end of the sliding column 96 and the floating plate 91.

[0027] The fluid guiding channel 92 is arranged in a spiral shape.

[0028] Specifically, with the help of the liquid stabilizing mechanism 9, which consists of a floating plate 91, a liquid guiding pipe 92, and a sliding column 96, when the liquid level rises, the floating plate 91 moves upward to pull the sliding column 96, and the liquid guiding pipe 92 draws in some fermentation liquid. When the liquid level drops, the sliding column 96 returns to its original position, and the liquid in the pipe flows back, effectively buffering the fluctuation of the liquid level and preventing the stirring plate 7 from being exposed above the liquid surface or immersed too deeply due to abnormal liquid level. This ensures that the defoaming mechanism 8 works continuously and stably, and improves the mixing effect.

[0029] Working principle: When using this device, the raw materials are first introduced into the inner cavity of the fermentation tank 1 through the feed inlet 2, then the feed inlet 2 is closed, and the motor 3 is started. The motor 3 drives the rotating shaft 6 and the stirring plate 7 to rotate. The stirring plate 7 stirs the liquid to make the mixture more uniform. In the early stage of fermentation, the yeast needs a lot of oxygen to reproduce, so a high speed of stirring is required to make the air and fermentation liquid fully contact. At this time, the motor 3 rotates at high speed, and the extrusion protrusion 815 will also rotate quickly. When the extrusion protrusion 815 quickly squeezes the trigger rod 811, due to the setting of the non-Newtonian fluid in the placement groove 813, the non-Newtonian fluid hardens, and there is no relative displacement between the trigger rod 811 and the sliding block 85. The trigger rod 811 drives the non-Newtonian fluid and the sliding block 85 to move away from the rotating shaft 6. The upper end of the connecting groove 86 is connected to the exhaust groove 87. At this time, the inner cavity of the fermentation tank 1 and the air outside the fermentation tank 1 are always connected. Therefore, when stirring at high speed, the lifting plate 81 will not perform subsequent pressure reduction operation, which can reduce the required energy and thus reduce the cost of use. During the mid-fermentation stage, the yeast enters a phase of large-scale metabolism, producing alcohol and carbon dioxide. The stirring speed should be appropriately reduced. Excessive speed may cause the fermentation broth temperature to rise too quickly, and the large amount of carbon dioxide produced during mid-fermentation can easily form numerous bubbles, affecting fermentation. Therefore, the speed of motor 3 should be reduced at this time. When motor 3 rotates slowly, the extrusion protrusion 815 slowly extrudes the trigger rod 811, allowing the bottom end of the trigger rod 811 to slide in a non-Newtonian fluid. The trigger rod 811 retracts into the sliding block 85. The extrusion connecting block 814 can extrude the inclined sliding surface 816 and inclined sliding surface 817 on the sliding block 85. When the extrusion connecting block 81... When the first inclined sliding surface 816 is pressed, the sliding block 85 will drive the insertion frame 89 and the lifting plate 81 to move upward. When the pressing connecting block 814 presses the second inclined sliding surface 817, the sliding block 85 moves away from the rotating shaft 6 and connects the connecting slot 86 with the exhaust slot 87 to exhaust air. This allows the air pressure in the inner cavity of the fermentation tank 1 to first decrease and then recover. After the air pressure in the fermentation tank 1 decreases, the pressure inside the bubble is greater than that on the outside, so the bubble can burst faster. Moreover, the pressure decreases periodically, so the bubble can be large or small, which further accelerates the bursting speed of the bubble. The insertion frame 89 is provided to prevent the sliding block 85 from being jammed due to excessive resistance during pressure reduction. When the liquid level rises, the floating plate 91 is buoyed and moves upward. The connecting groove 94 will then connect with the liquid. As the floating plate 91 moves upward, the sliding column 96 is pulled by the pulling rope 95, which reduces the pressure in the liquid guiding pipe 92. The liquid above will be drawn into the liquid guiding pipe 92 through the connecting groove 94. When the floating plate 91 moves downward, the spring 97 resets the sliding column 96, and the liquid in the liquid guiding pipe 92 will flow back into the inner cavity of the fermentation tank 1. This prevents the liquid level from rising too high and affecting the stirring and mixing effect, thus slowing down the fluctuation of the liquid level. When the liquid level fluctuates frequently, the liquid in the liquid guiding pipe 92 will also be frequently pumped back and forth, and the liquid in the liquid guiding pipe 92 can also automatically achieve the mixing effect.

[0030] A fermentation process for an automated beer fermentation apparatus includes the following steps: S1. The beer fermentation raw materials are introduced into the inner cavity of the fermentation tank 1 through the feed inlet 2. After the feed inlet 2 is closed, the motor 3 is started. The motor 3 drives the rotating shaft 6 and the bottom stirring plate 7 to rotate, and stirs and mixes the fermentation liquid. S2. In the early stage of fermentation, high-speed stirring is required to provide oxygen for yeast to absorb and reproduce. At this time, the motor 3 rotates at high speed, and the extrusion protrusion 815 quickly extrudes the trigger rod 811. The non-Newtonian fluid hardens and drives the sliding block 85 to move, so that the fermentation tank 1 can be ventilated with the outside world, reducing energy consumption. In the middle stage of fermentation, the stirring speed is switched to low speed. The extrusion connecting block 814 extrudes the inclined sliding surface of the sliding block 85, which drives the lifting plate 81 to move upward and the sliding block 85 to move horizontally, so that the air pressure in the inner cavity of the fermentation tank 1 drops and then recovers periodically, accelerating the bursting of bubbles and achieving defoaming. S3. When the liquid level rises, the floating plate 91 moves upward due to buoyancy, and pulls the sliding column 96 by the pulling rope 95. The liquid guiding pipe 92 draws in part of the fermentation liquid. When the liquid level falls, the spring 97 drives the sliding column 96 to reset, and the liquid in the pipe flows back, causing the buffer level to fluctuate.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated beer fermentation device, comprising a fermentation tank (1), wherein the fermentation tank (1) is provided with an inlet (2) and an outlet (4) at its upper and lower ends respectively, an electric motor (3) is fixedly connected to the upper end of the fermentation tank (1), a rotating shaft (6) is fixedly connected to the bottom output shaft of the electric motor (3), the rotating shaft (6) is located in the inner cavity of the fermentation tank (1), a stirring plate (7) is fixedly connected to the outer wall of the bottom end of the rotating shaft (6), and an air exchange port (5) is provided at the upper end of the fermentation tank (1), characterized in that, Also includes: The defoaming mechanism (8) can play a defoaming role during stirring, and the defoaming mechanism (8) is set in the inner cavity of the fermentation tank (1); And a liquid stabilizing mechanism (9) is provided inside the fermentation tank (1) to effectively maintain the stability of the liquid level.

2. The automated beer fermentation apparatus according to claim 1, characterized in that: The defoaming mechanism (8) includes a lifting plate (81), which is movably disposed in the inner cavity of the fermentation tank (1). The outer wall of the lifting plate (81) is in close contact with the inner wall of the fermentation tank (1). Guide rods (82) are fixedly connected to both opposite sides of the upper end of the lifting plate (81). The upper end of the guide rods (82) extends to the upper side of the fermentation tank (1). A spring (83) is fixedly connected between the lower surface of the upper end of the guide rods (82) and the top of the fermentation tank (1). An air inlet slot (84) is opened at the bottom end of the lifting plate (81). A sliding block (85) is horizontally slidably disposed inside the lifting plate (81). A spring (88) is fixedly connected between the sliding block (85) and the lifting plate (81). A connecting slot (86) is opened inside the sliding block (85). An exhaust slot (87) is opened at the upper end of the lifting plate (81). 5) An insertion bracket (89) is inserted at the top and bottom. A spring three (810) is fixed between the bottom end of the insertion bracket (89) and the sliding block (85). A trigger rod (811) is horizontally inserted at one end of the sliding block (85) near the rotating shaft (6). A spring four (812) is fixed between the end of the trigger rod (811) inside the sliding block (85) and the sliding block (85). A placement groove (813) is opened inside the sliding block (85). The bottom end of the trigger rod (811) is movably set in the placement groove (813). An extrusion connecting block (814) and an extrusion protrusion (815) are fixed to the outer wall of the rotating shaft (6). An inclined sliding surface one (816) is opened on the upper side of one end of the sliding block (85) near the rotating shaft (6). An inclined sliding surface two (817) is opened on the lower side of the inclined sliding surface one (816) inside the sliding block (85).

3. The automated beer fermentation apparatus according to claim 2, characterized in that: The liquid stabilizing mechanism (9) includes a floating plate (91), which is slidably disposed on the inner wall of the fermentation tank (1). A liquid guiding pipe (92) is disposed inside the fermentation tank (1). One end of the liquid guiding pipe (92) is connected to a sleeve pipe (93), which is fixedly connected to the fermentation tank (1). The upper section of the liquid guiding pipe (92) is connected to a connecting groove (94), and the other end of the connecting groove (94) is connected to the inner cavity of the fermentation tank (1). A sliding column (96) is slidably disposed inside the sleeve pipe (93). A spring (97) is fixedly connected between one end of the sliding column (96) and the sleeve pipe (93), and a pulling rope (95) is connected between the other end of the sliding column (96) and the floating plate (91).

4. An automated beer fermentation apparatus according to claim 2, characterized in that: A sealing ring (10) is fixed at the center of the bottom end of the lifting plate (81), and the sealing ring (10) is in close contact with the rotating shaft (6).

5. An automated beer fermentation apparatus according to claim 2, characterized in that: The placement slot (813) contains a non-Newtonian fluid.

6. An automated beer fermentation apparatus according to claim 2, characterized in that: The extrusion protrusions (815) are arranged in a ring with equal spacing.

7. An automated beer fermentation apparatus according to claim 2, characterized in that: When the extrusion connecting block (814) extrudes the first inclined sliding surface (816) and the second inclined sliding surface (817), it can drive the sliding block (85) to move upward and horizontally, respectively.

8. An automated beer fermentation apparatus according to claim 3, characterized in that: The liquid guiding pipe (92) is arranged in a spiral shape.

9. A fermentation process for an automated beer fermentation apparatus, based on the automated beer fermentation apparatus according to any one of claims 1-8, characterized in that: Includes the following steps: S1. Introduce the beer fermentation raw materials into the fermentation tank (1) through the feed inlet (2), close the feed inlet (2) and start the motor (3). The motor (3) drives the rotating shaft (6) and the bottom stirring plate (7) to rotate and stir the fermentation liquid. S2. In the early stage of fermentation, high-speed stirring is required to provide oxygen for yeast to reproduce. At this time, the motor (3) rotates at high speed, and the extrusion protrusion (815) quickly extrudes the trigger rod (811). The non-Newtonian fluid hardens and drives the sliding block (85) to move, so that the fermentation tank (1) can be ventilated with the outside world, reducing energy consumption. In the middle stage of fermentation, the stirring is switched to low speed. The extrusion connecting block (814) extrudes the inclined sliding surface of the sliding block (85), which drives the lifting plate (81) to move up and the sliding block (85) to move horizontally, so that the air pressure in the inner cavity of the fermentation tank (1) drops periodically and then recovers, accelerating the bursting of bubbles to achieve defoaming. S3. When the liquid level rises, the floating plate (91) moves upward due to buoyancy, and pulls the sliding column (96) by pulling the rope (95). The liquid guide pipe (92) sucks in part of the fermentation liquid. When the liquid level drops, the spring five (97) drives the sliding column (96) to reset, the liquid in the pipe flows back, and the buffer level fluctuates.

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