A detachable coffee fermentation vat stirring device

CN224646945UActive Publication Date: 2026-08-18SPICE & BEVERAGE RES INST CHINESE ACAD OF TROPICAL AGRI SCI +1
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Patent Information

Application Number
CN202521504839.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-08-18
Estimated Expiration
2035-07-18

AI Technical Summary

Technical Problem

[0004]该装置为单筒体结构,当需要对咖啡豆进行发酵作业时,将咖啡豆一次性全部倒入保温桶中进行集中发酵,但是,在发酵期间,这种方式容易致使部分咖啡豆原料不能与氧气充分接触,进而对发酵速度产生不利影响,最终导致生产效率降低

Benefits of technology

[0008]本实用新型相较于现有技术,其有益效果为:1、使得次级储料组件内,各个区域的咖啡原料进行搅拌的同时,均可以与氧气得到充分接触,从而可以提升发酵速率,保证发酵效果;

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Abstract

The utility model discloses a detachable coffee fermentation vat stirring device belongs to coffee fermentation technical field, including fermentation vat and U type base frame, and U type base frame installs inside the fermentation vat, install on the U type base frame and have multistage material removal storage mechanism, multistage material removal storage mechanism is by a plurality of secondary storage component constitutes, and secondary storage component is in U type base frame and is linearly equidistantly evenly distributed along the height direction, install on the U type base frame and have the gas delivery uniform stirring mechanism, the gas delivery uniform stirring mechanism includes multiple stirring subassembly, and the oxygen content and temperature in each secondary storage component are all different. Through above -mentioned mode, make in secondary storage component, each area coffee raw material carries out stirring while, can all with oxygen and get sufficient contact to can promote fermentation rate, guarantee fermentation effect.
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Description

Technical Field

[0001] This utility model relates to the field of coffee fermentation technology, specifically to a detachable coffee fermentation tank stirring device. Background Technology

[0002] Stirring is an important step in coffee fermentation. It helps ensure that coffee beans are evenly exposed to air or microorganisms during fermentation, thereby promoting flavor development.

[0003] Chinese patent CN212655780U discloses a coffee bean fermentation and stirring device, comprising an insulated container, an internal fermentation tank, and a heating device. A top cover is installed on the top of the fermentation tank, with a funnel attached to one end of the cover. A support column is installed at the bottom of the insulated container, and a base is installed at the bottom of the support column. A motor is installed at the upper center of the base, with a second gear attached to one end of the motor. A stirring shaft is installed at the upper end of the motor, with a stirring rod attached to its outer surface. A first gear is installed at the lower end of the stirring shaft, and a second filter screen is installed at the upper end. A water pipe is installed on one side of the lower end of the insulated container, with a valve at the upper end. A first filter screen is located on the lower end of the water pipe near the insulated container. However, this device still has the following problems during use:

[0004] The device has a single-cylinder structure. When coffee beans need to be fermented, all the coffee beans are poured into the insulated container at once for centralized fermentation. However, during fermentation, this method can easily cause some coffee bean raw materials to not come into full contact with oxygen, which will have an adverse effect on the fermentation speed and ultimately reduce production efficiency.

[0005] Based on this, the present invention designs a detachable coffee fermentation tank stirring device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a detachable coffee fermentation tank stirring device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A detachable coffee fermentation tank stirring device includes a fermentation tank and a U-shaped base frame, and also includes a multi-stage material transfer and storage mechanism and a gas delivery and uniform stirring mechanism; the U-shaped base frame is installed inside the fermentation tank; A multi-stage material transfer and storage mechanism is installed on the U-shaped base frame for the orderly transfer of coffee raw materials in stages, enabling continuous fermentation operations. The multi-level material transfer and storage mechanism consists of multiple secondary material storage components, and the secondary material storage components are linearly and evenly distributed along the height direction on the U-shaped base frame. An air-feeding and uniform stirring mechanism is installed on the U-shaped base frame for stirring the coffee raw materials in the secondary storage assembly. The gas delivery and uniform mixing mechanism includes multiple sets of mixing components; a main gas delivery channel is opened on the right side of the U-shaped base; an air pipe is fixedly installed on the main gas delivery channel; the air pipe is connected to an external air pump; the mixing components are linearly and evenly distributed on the U-shaped base; and the mixing components correspond one-to-one with the secondary storage components; and the mixing components are connected to the secondary storage components. Furthermore, the oxygen content and temperature are different in each level of the storage assembly; Furthermore, the upper left and right sides of the U-shaped base frame are symmetrically equipped with fixing mechanisms to fix the U-shaped base frame to the fermentation tank, achieving a detachable connection. Furthermore, the fixing mechanism includes a clamping plate, a lead screw, a clamping plate, and a guide rod; the clamping plate is symmetrically fixedly installed on the left and right sides of the upper end of the U-shaped base frame; the lead screw is rotatably installed on the inner walls of the left and right sides of the clamping plate; the left and right ends of the guide rod are fixedly installed on the inner walls of the left and right sides of the clamping plate; the clamping plate is threadedly connected to the lead screw; the clamping plate and the guide rod are slidably connected. Furthermore, the secondary storage assembly includes a secondary stirring fermentation chamber, a feed hopper, and a flat valve; the left and right sides of the secondary stirring fermentation chamber are fixedly installed on the inner walls of the left and right sides of the U-shaped base frame; the upper end of the secondary stirring fermentation chamber is provided with a feed inlet; the lower end of the feed hopper is provided with a discharge outlet. A feed hopper is fixedly installed at the upper end of the secondary stirred fermentation chamber; and the discharge port of the feed hopper is connected to the feed port of the secondary stirred fermentation chamber. The secondary mixing and fermentation chamber has a discharge port at the lower end; a flat valve is also fixedly installed at the discharge port. Furthermore, the lower end of the secondary stirring fermentation chamber is symmetrically provided with downward sloping surfaces on the left and right sides; Furthermore, the stirring assembly includes a stirring spindle, stirring rods, a stirring motor, and an induction heating ring; the left and right ends of the stirring spindle are sealed and rotatably connected to the inner walls of the left and right sides of the U-shaped base frame; and the middle part of the stirring spindle is also sealed and rotatably connected to the left and right ends of the secondary stirring fermentation chamber. Multiple stirring rods are fixedly installed on the stirring spindle; the stirring rods are distributed in a circumferential array at equal intervals on the stirring spindle. The stirring motor is fixedly installed at the left end of the U-shaped base frame; the output end of the stirring motor is fixedly connected to the stirring main shaft. An induction heating ring for heating the secondary stirred fermentation chamber is fixedly installed at the outer end of the secondary stirred fermentation chamber; Furthermore, the mixing shaft and mixing rod are provided with an auxiliary gas delivery channel inside; the auxiliary gas delivery channel of the mixing rod is connected to the auxiliary gas delivery channel of the mixing shaft; and the auxiliary gas delivery channel is connected to the main gas delivery channel. Furthermore, the stirring rod is provided with multiple air outlets for venting; and a filter screen is fixedly installed on the air outlet to prevent coffee ingredients from entering.

[0008] Compared with the prior art, the advantages of this utility model are: 1. It enables the coffee raw materials in each area of ​​the secondary storage component to be fully contacted with oxygen while being stirred, thereby improving the fermentation rate and ensuring the fermentation effect; 2. Through the cooperation of multiple secondary storage components, the coffee raw materials are transferred step by step, thereby achieving continuous fermentation and ensuring the original flavor of the coffee. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This utility model provides a three-dimensional detachable coffee fermentation tank stirring device. Figure 1 ; Figure 2 This is a front view of a detachable coffee fermentation tank stirring device according to the present invention. Figure 3 This utility model provides a three-dimensional detachable coffee fermentation tank stirring device. Figure 2 ; Figure 4 This is a perspective view of a detachable coffee fermentation tank stirring device of the present invention, with a portion of the front cut away. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a three-dimensional diagram of a fixed mechanism.

[0011] The labels in the diagram represent: 1. Fermentation tank; 2. U-shaped base frame; 3. Fixing mechanism; 31. Clamping plate; 32. Lead screw; 33. Clamping plate; 34. Guide rod; 4. Multi-stage material transfer and storage mechanism; 41. Secondary stirring fermentation chamber; 42. Feed hopper; 43. Flat plate valve; 5. Gas supply and uniform stirring mechanism; 51. Main gas supply channel; 52. Stirring main shaft; 53. Stirring rod; 54. Secondary gas supply channel; 55. Gas supply hole; 56. Stirring motor; 57. Induction heating ring. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0013] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0014] In some embodiments, please refer to the accompanying drawings. Figures 1-6 A detachable coffee fermentation barrel stirring device includes a fermentation barrel 1 and a U-shaped base frame 2, and also includes a fixing mechanism 3, a multi-stage material transfer and storage mechanism 4 and a gas delivery and uniform stirring mechanism 5; the U-shaped base frame 2 is installed inside the fermentation barrel 1; and the upper left and right sides of the U-shaped base frame 2 are symmetrically equipped with fixing mechanisms 3 for fixing the U-shaped base frame 2 to the fermentation barrel 1 to achieve a detachable connection. A multi-stage material transfer and storage mechanism 4 is installed on the U-shaped base frame 2 for the orderly transfer of coffee raw materials in stages to achieve continuous fermentation operation; like Figure 1 As shown, the multi-stage material transfer and storage mechanism 4 is composed of multiple secondary material storage components, and the secondary material storage components are linearly and evenly distributed along the height direction on the U-shaped base frame 2. The U-shaped base frame 2 is equipped with an air-feeding and uniform stirring mechanism 5 for stirring the coffee raw materials in the secondary storage assembly; The gas delivery and uniform stirring mechanism 5 includes multiple stirring components; a main gas delivery channel 51 is opened on the right side of the U-shaped base frame 2; an air pipe is fixedly installed on the main gas delivery channel 51; the air pipe is connected to an external air pump; the stirring components are linearly and evenly distributed on the U-shaped base frame 2; and the stirring components correspond one-to-one with the secondary storage components; and the stirring components are connected to the secondary storage components. Among them, the discharge position of the lowest set of secondary storage components is set as the maximum storage position of coffee raw materials in fermentation tank 1; In this invention, the U-shaped base frame 2 is fixed inside the fermentation tank 1 by the fixing mechanism 3; then the coffee raw material is added into the uppermost secondary storage component; and the upper end of the fermentation tank 1 is sealed with a sealing cloth. Subsequently, the stirring component corresponding to the uppermost secondary storage component can stir the coffee raw materials in the secondary storage component. During the stirring process, oxygen enters the stirring component through the main gas supply channel 51, so that the coffee raw materials in each area of ​​the secondary storage component can be fully contacted with oxygen while being stirred, thereby improving the fermentation rate and ensuring the fermentation effect. After the first round of fermentation is completed, the topmost stirring component stops working, and the topmost secondary storage component discharges the coffee raw material after the first round of fermentation downwards into the next layer of secondary storage component; then the stirring component of the next layer performs a further fermentation process on the coffee raw material that has completed the first round of fermentation. The process is then repeated until the coffee raw materials have completed the continuous fermentation process; finally, the fermented coffee raw materials are discharged into the fermentation tank 1 through the lowest secondary storage component. When the coffee raw material stored in fermentation tank 1 reaches the maximum storage position of fermentation tank 1, the sealing cloth at the top of fermentation tank 1 is removed, and then the fixing mechanism 3 releases the fixing effect between the U-shaped base frame 2 and fermentation tank 1. Then, the U-shaped base frame 2 is removed, and the coffee raw material in fermentation tank 1 is removed. Through the cooperation of multiple secondary storage components, the coffee raw material is transferred step by step, thereby achieving continuous fermentation and ensuring the original flavor of the coffee.

[0015] like Figure 6 As shown, the fixing mechanism 3 includes a clamping plate 31, a lead screw 32, a clamping plate 33, and a guide rod 34; the clamping plate 31 is symmetrically fixedly installed on the left and right sides of the upper end of the U-shaped base frame 2; the lead screw 32 is rotatably installed on the inner walls of the left and right sides of the clamping plate 31; the left and right ends of the guide rod 34 are fixedly installed on the inner walls of the left and right sides of the clamping plate 31; the clamping plate 33 is threadedly connected to the lead screw 32; the clamping plate 33 and the guide rod 34 are in a limited sliding connection. like Figure 3 and Figure 4 As shown, the secondary storage assembly includes a secondary stirring fermentation chamber 41, a feed hopper 42, and a flat valve 43; the left and right sides of the secondary stirring fermentation chamber 41 are fixedly installed on the inner walls of the left and right sides of the U-shaped base frame 2; the upper end of the secondary stirring fermentation chamber 41 is provided with a feed inlet; the lower end of the feed hopper 42 is provided with a discharge outlet. A feed hopper 42 is fixedly installed at the upper end of the secondary stirred fermentation chamber 41; and the discharge port of the feed hopper 42 is connected to the feed port of the secondary stirred fermentation chamber 41. The secondary stirred fermentation chamber 41 has symmetrical downward sloping surfaces on the left and right sides at the lower end; The secondary mixing and fermentation chamber 41 is provided with a discharge port at its lower end; a flat valve 43 is also fixedly installed at the discharge port. like Figure 5As shown, the stirring assembly includes a stirring shaft 52, a stirring rod 53, a stirring motor 56, and an induction heating ring 57; the left and right ends of the stirring shaft 52 are sealed and rotatably connected to the inner walls of the left and right sides of the U-shaped base frame 2; and the middle part of the stirring shaft 52 is also sealed and rotatably connected to the left and right ends of the secondary stirring fermentation chamber 41. Multiple stirring rods 53 are fixedly installed on the stirring shaft 52; the stirring rods 53 are distributed in a circumferential array at equal intervals on the stirring shaft 52. The mixing main shaft 52 and the mixing rod 53 are provided with an air supply auxiliary channel 54; the air supply auxiliary channel 54 of the mixing rod 53 is connected to the air supply auxiliary channel 54 of the mixing main shaft 52; and the air supply auxiliary channel 54 is connected to the air supply main channel 51. The stirring rod 53 is provided with a plurality of air outlets 55 for venting; and a filter screen is fixedly installed on the air outlets 55 to prevent coffee raw materials from entering. The stirring motor 56 is fixedly installed at the left end of the U-shaped base frame 2; the output end of the stirring motor 56 is fixedly connected to the stirring main shaft 52. An induction heating ring 57 for heating the secondary stirred fermentation chamber 41 is fixedly installed at the outer end of the secondary stirred fermentation chamber 41. The diameter of the gas delivery auxiliary channel 54 in each layer of the stirring assembly is different, and the size of the gas delivery auxiliary channel 54 gradually decreases from top to bottom; When the oxygen input rate in the main gas supply channel 51 is constant, the larger the diameter of the secondary gas supply channel 54, the more oxygen will be discharged into the secondary stirring fermentation chamber 41 from the gas supply hole 55 per unit time, which will accelerate the fermentation of coffee raw materials. As the size of the secondary gas supply channel 54 gradually decreases, the fermentation speed of coffee raw materials after multiple rounds of fermentation will slow down, which will help improve the flavor of coffee raw materials. Each layer of induction heating ring 57 heats the secondary stirred fermentation chamber 41 at a different temperature, and the heating temperature is inversely proportional to the amount of oxygen in the secondary stirred fermentation chamber 41. The lower the amount of oxygen, the higher the temperature. The higher the temperature, the more it can inhibit the growth of microorganisms and further slow down the fermentation rate.

[0016] In this utility model, by placing the left and right sides of the U-shaped base frame 2 on the upper end of the fermentation tank 1, and then rotating the screws 32 on the left and right sides, the clamping plate 33 is moved along the guide rod 34 toward the fermentation tank 1 until the clamping plate 33 is pressed against the outer arm of the fermentation tank 1. The coffee raw materials are then added to the secondary stirring and fermentation chamber 41 through the feed hopper 42 in the uppermost storage component; and the upper end of the fermentation tank 1 is sealed with a sealing cloth. Subsequently, the stirring motor 56 corresponding to the top-level storage component drives the stirring main shaft 52 to rotate. The rotation of the stirring main shaft 52 drives multiple stirring rods 53 to rotate simultaneously, which can stir the coffee raw materials in the secondary stirring fermentation chamber 41. During the stirring process, oxygen enters the secondary air supply channel 54 opened inside the stirring main shaft 52 through the main air supply channel 51, and is discharged outward into the secondary stirring fermentation chamber 41 through the air supply holes 55 opened on the stirring rods 53. This ensures that the coffee raw materials in each area of ​​the secondary stirring fermentation chamber 41 can be fully contacted with oxygen while being stirred. After the first round of fermentation is completed, the top stirring motor 56 stops working, and then the top plate valve 43 opens to release the seal on the outlet of the secondary stirring fermentation chamber 41; at this time, the coffee raw material after the first round of fermentation will pass through the outlet into the feed hopper 42 of the next level storage component; The process is then repeated until the coffee raw material completes the step-by-step continuous fermentation process; finally, the fermented coffee raw material is discharged into the fermentation tank 1 through the secondary stirring fermentation chamber 41 of the lowest secondary storage component. When the coffee raw material stored in the fermentation tank 1 reaches its maximum value, remove the sealing cloth at the top of the fermentation tank 1, then rotate the screw 32 to drive the clamp 33 to rotate, releasing the fixing effect between the U-shaped base frame 2 and the fermentation tank 1. Then remove the U-shaped base frame 2 and remove the coffee raw material from the fermentation tank 1.

[0017] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A detachable coffee fermentation tank stirring device, comprising a fermentation tank (1) and a U-shaped base frame (2), characterized in that: It also includes a multi-stage material transfer and storage mechanism (4) and a gas delivery and uniform stirring mechanism (5); the U-shaped base frame (2) is installed inside the fermentation tank (1); A multi-stage material transfer and storage mechanism (4) is installed on the U-shaped base frame (2) for orderly transfer of coffee raw materials to achieve continuous fermentation operation. The multi-level material transfer and storage mechanism (4) is composed of multiple secondary material storage components, and the secondary material storage components are evenly distributed linearly and at equal intervals along the height direction on the U-shaped base frame (2); A gas-feeding uniform stirring mechanism (5) is installed on the U-shaped base frame (2) for stirring the coffee raw materials in the secondary storage assembly. The gas conveying uniform stirring mechanism (5) includes multiple stirring components; a gas conveying main channel (51) is opened on the right side of the U-shaped base frame (2); an air pipe is fixedly installed on the gas conveying main channel (51); the air pipe is connected to an external air pump; the stirring components are evenly distributed linearly and at equal intervals on the U-shaped base frame (2); and the stirring components correspond one-to-one with the secondary storage components; and the stirring components are connected to the secondary storage components. Furthermore, the oxygen content and temperature are different in each level of the storage assembly.

2. The detachable coffee fermentation tank stirring device according to claim 1, characterized in that, The upper left and right sides of the U-shaped base frame (2) are symmetrically equipped with fixing mechanisms (3) for fixing the U-shaped base frame (2) and the fermentation tank (1) to achieve detachable connection.

3. The detachable coffee fermentation tank stirring device according to claim 2, characterized in that, The fixing mechanism (3) includes a clamping plate (31), a lead screw (32), a clamping plate (33), and a guide rod (34); the clamping plate (31) is symmetrically fixed on the upper left and right sides of the U-shaped base frame (2); the lead screw (32) is rotatably installed on the inner walls of the left and right sides of the clamping plate (31); the left and right ends of the guide rod (34) are fixedly installed on the inner walls of the left and right sides of the clamping plate (31); the clamping plate (33) is threadedly connected to the lead screw (32); the clamping plate (33) is limited and slidably connected to the guide rod (34).

4. The detachable coffee fermentation tank stirring device according to claim 3, characterized in that, The secondary storage assembly includes a secondary stirring fermentation chamber (41), a feed hopper (42), and a flat valve (43); the left and right sides of the secondary stirring fermentation chamber (41) are fixedly installed on the inner walls of the left and right sides of the U-shaped base frame (2); the upper end of the secondary stirring fermentation chamber (41) is provided with a feed inlet; the lower end of the feed hopper (42) is provided with a discharge outlet. A feed hopper (42) is fixedly installed at the upper end of the secondary stirred fermentation chamber (41); and the discharge port of the feed hopper (42) is connected to the feed port of the secondary stirred fermentation chamber (41); The secondary stirring fermentation chamber (41) has a discharge port at the lower end; a flat valve (43) is also fixedly installed at the discharge port.

5. The detachable coffee fermentation tank stirring device according to claim 4, characterized in that, The secondary stirred fermentation chamber (41) has symmetrical downward inclined surfaces on the left and right sides at the lower end.

6. The detachable coffee fermentation tank stirring device according to claim 4, characterized in that, The stirring assembly includes a stirring spindle (52), a stirring rod (53), a stirring motor (56), and an induction heating ring (57); the left and right ends of the stirring spindle (52) are sealed and rotatably connected to the inner walls of the left and right sides of the U-shaped base frame (2); and the middle part of the stirring spindle (52) is also sealed and rotatably connected to the left and right ends of the secondary stirring fermentation chamber (41). Multiple stirring rods (53) are fixedly installed on the stirring spindle (52); the stirring rods (53) are distributed in a circular array at equal intervals on the stirring spindle (52); The stirring motor (56) is fixedly installed on the left end of the U-shaped base frame (2); the output end of the stirring motor (56) is fixedly connected to the stirring main shaft (52); An induction heating ring (57) for heating the secondary stirred fermentation chamber (41) is fixedly installed at the outer end of the secondary stirred fermentation chamber (41).

7. The detachable coffee fermentation tank stirring device according to claim 6, characterized in that, The mixing shaft (52) and the mixing rod (53) are provided with a gas supply auxiliary channel (54); the gas supply auxiliary channel (54) of the mixing rod (53) is connected to the gas supply auxiliary channel (54) of the mixing shaft (52); and the gas supply auxiliary channel (54) is connected to the gas supply main channel (51).

8. The detachable coffee fermentation tank stirring device according to claim 7, characterized in that, The stirring rod (53) is provided with a plurality of air outlets (55) for venting; and a filter screen is fixedly installed on the air outlets (55) to prevent coffee raw materials from entering.

Citation Information

Patent Citations

  • Coffee bean fermentation stirring device

    CN212655780U