Fermentation device for fermenting burdock tea at constant temperature

Abstract

The utility model relates to the technical field of burdock tea processing, and discloses a fermentation device for constant-temperature fermentation of burdock tea, which comprises a fermentation tank, a stirring motor, a stirring shaft, a stirring rod, a grate plate and a base, a swinging mechanism is arranged in an inner cavity of the base, the swinging mechanism comprises a swinging support and a swinging driving assembly, the swing support is rotatably connected with the base through a swing bearing, the fermentation tank is connected with the swing support through a bolt, the swing driving assembly comprises a rotating shaft, the rotating shaft is rotatably connected to an inner cavity of the base, two cams are fixedly connected to the surface of the rotating shaft, and swing arms are rotatably connected to the surfaces of the two cams; the swing arm is rotationally connected with one side of the swing support through a pin shaft, and the swing driving assembly can drive the fermentation tank to swing left and right.

Description

Technical Field

[0001] This utility model relates to the field of burdock tea processing technology, specifically to a fermentation device for constant temperature fermentation of burdock tea. Background Technology

[0002] Burdock tea is a beverage made from burdock root, with a long history and wide application. Burdock (scientific name: Arctium lappa), also known as burdock, is a nutrient-rich root vegetable containing various vitamins, trace elements, and dietary fiber. It has many health benefits, such as clearing heat and detoxifying, moisturizing the intestines and relieving constipation, and enhancing immunity. Fermentation devices can increase the beneficial microorganisms in burdock tea, further improving its nutritional value and taste.

[0003] Chinese Patent Publication No. (CN221949147U) discloses a fermentation device for burdock tea, including a fermentation tank with feed inlets fixed on both sides. The fermentation tank is equipped with a stirring assembly for stirring flaky burdock roots. The stirring assembly includes a stirring motor fixed on the fermentation tank, a stirring shaft fixed at the bottom of the stirring motor, and a stirring rod fixed on the side of the stirring shaft. The stirring rod is used to stir the flaky burdock roots.

[0004] Existing technology uses a stirring motor to drive the stirring shaft to rotate, which in turn drives the stirring rod and the baffle to disperse the piled burdock slices, thereby promoting their contact and mixing with the fermentation solution. However, this method has certain limitations in practical applications. First, since the fermentation tank cannot be oscillated and relies solely on the rotational shear force of the stirring rod, fluid stratification is easily formed inside the tank. In particular, the burdock slices at the edges and bottom of the tank are difficult to be fully stirred, which not only affects the full contact between the burdock slices and the fermentation solution, but also leads to insufficient fermentation uniformity.

[0005] In view of this, the present invention solves the above-mentioned technical problems by proposing a fermentation device for constant temperature fermentation of burdock tea. Utility Model Content

[0006] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for a constant-temperature fermentation device for burdock tea. By adding a left-right swaying structure to the fermentation tank while stirring, the rotational motion of the stirring rod and the left-right swaying of the tank create a complex vortex and inertial force that alternates. This not only reduces mixing dead zones and ensures sufficient contact between the burdock slices and the fermentation liquid, but also shortens the dispersion time of the burdock slices and improves mixing efficiency. Simultaneously, the swaying vibration breaks up the solid-liquid stratification in the high-viscosity liquid, improving suspension uniformity. The swaying motion also enhances the renewal of the gas-liquid interface, increasing dissolved oxygen efficiency and the escape rate of metabolic gases such as carbon dioxide, thereby reducing product inhibition effects. The grate of this device is raised and lowered through a drive structure of worm gear, worm wheel, gear, and rack. The operator only needs to rotate the handle to drive the worm wheel to rotate, which in turn raises and lowers the rack, thus raising and lowering the grate. This not only improves operational convenience but also ensures the stability of the fermentation process.

[0007] This utility model provides the following technical solution: a fermentation device for constant temperature fermentation of burdock tea, including a fermentation tank, a stirring motor, a stirring shaft, a stirring rod, a grate and a base;

[0008] The base cavity is provided with a rocking mechanism, which includes a rocking support and a rocking drive assembly;

[0009] The rocking support is rotatably connected to the base via a rocking bearing, and the fermentation tank is connected to the rocking support via bolts.

[0010] The rocking drive assembly includes a rotating shaft, which is rotatably connected to the inner cavity of the base. Two cams are fixedly connected to the surface of the rotating shaft, and rocking arms are rotatably connected to the surfaces of the two cams. The rocking arms are rotatably connected to one side of the rocking support via pins.

[0011] The swing drive assembly can drive the fermenter to swing left and right.

[0012] As a preferred technical solution of this utility model, the swing drive assembly further includes a swing motor, which is installed inside the base. One end of the output shaft of the swing motor and the surface of the rotating shaft are both fixedly connected to a synchronous wheel. A synchronous belt is fitted on the surface of the synchronous wheel. The swing motor drives the swing arm to make the fermentation tank swing left and right.

[0013] As a preferred technical solution of this utility model, the grate is disposed in the inner cavity of the fermentation tank. The grate is raised and lowered by a lifting mechanism. The lifting mechanism includes two connecting frames, which are fixed to the top of the fermentation tank. Gears are rotatably connected to the inner cavities of the two connecting frames. A rack is slidably connected to the inner cavity of the fermentation tank. The bottom end of the rack is connected to one end of the fermentation tank. The rack and the gear support are meshed together.

[0014] As a preferred technical solution of this utility model, the lifting mechanism further includes a fixed frame, which is fixed to the top of the fermentation tank. A worm gear is rotatably connected to the inner cavity of the fixed frame, and a worm wheel is fixedly connected to the surface of the gear extension shaft. The worm gear and the worm wheel are meshed together, and the worm gear and the worm wheel are designed to be self-locking.

[0015] In a preferred embodiment of this invention, the stirring rod is mounted on the stirring shaft and is evenly distributed along the axial direction of the stirring shaft.

[0016] As a preferred technical solution of this utility model, the fermenter is provided with an insulation layer inside, which is a polyurethane foam insulation layer with a thickness of 50-100 mm.

[0017] As a preferred embodiment of this utility model, the stirring motor has a power of 0.5-2 kW, the oscillating motor has a power of 0.2-1 kW, and both motors are controlled by frequency conversion.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This utility model adds a swaying mechanism to the fermentation tank while stirring, forming a compound vortex and inertial force working alternately. This compound motion not only effectively reduces mixing dead zones and ensures full contact between burdock slices and fermentation liquid, but also significantly improves the uniformity of fermentation. The swaying inertial force pushes the material on the tank wall and bottom towards the center, further enhancing the mixing effect.

[0020] 2. This utility model designs a grate lifting mechanism driven by a worm, worm wheel, gear and rack. The grate can be lifted and lowered by rotating the handle. This design not only simplifies the operation process and improves work efficiency, but also ensures the stability and safety of the grate during the lifting process through the self-locking function of the worm and worm wheel. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the swing motor structure of this utility model;

[0024] Figure 4 This is a partially enlarged view of the present invention.

[0025] In the diagram: 1. Fermentation tank; 101. Stirring motor; 102. Stirring shaft; 103. Stirring rod; 104. Grate; 2. Base; 201. Swing support; 202. Rotating shaft; 203. Cam; 204. Swing arm; 3. Swing motor; 301. Synchronous pulley; 302. Synchronous belt; 4. Connecting frame; 401. Gear; 402. Rack; 5. Fixing frame; 501. Worm gear; 502. Worm wheel; 6. Insulation layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 As shown, a constant-temperature fermentation device for burdock tea includes a fermentation tank 1, a stirring motor 101, a stirring shaft 102, a stirring rod 103, a grate 104, and a base 2. The base 2 has an internal rocking mechanism, which includes a rocking support 201 and a rocking drive assembly. The rocking support 201 is rotatably connected to the base 2 via a rocking bearing. The fermentation tank 1 is bolted to the rocking support 201. The rocking drive assembly includes a rotating shaft 202, which is rotatably connected to the internal cavity of the base 2. Two cams 203 are fixedly connected to the surface of the rotating shaft 202, and rocking arms 204 are rotatably connected to the surfaces of the two cams 203. The rocking arms 204 are rotatably connected to one side of the rocking support 201 via pins. The rocking drive assembly can drive the fermentation tank 1 to move left and right. The swing motion drive assembly also includes a swing motor 3, which is installed inside the base 2. One end of the output shaft of the swing motor 3 and the surface of the rotating shaft 202 are both fixedly connected to a synchronous wheel 301. A synchronous belt 302 is fitted on the surface of the synchronous wheel 301. The swing motor 3 drives the swing arm 204 to drive the fermentation tank 1 to swing left and right. The grate 104 is located in the inner cavity of the fermentation tank 1. The grate 104 is raised and lowered by a lifting mechanism. The lifting mechanism includes two connecting frames 4, which are fixed to the top of the fermentation tank 1. The inner cavity of the two connecting frames 4 is rotatably connected to a gear 401. The inner cavity of the fermentation tank 1 is slidably connected to a rack 402. The bottom end of the rack 402 is connected to one end of the fermentation tank 1. The rack 402 and the gear 401 support are meshed.

[0028] The lifting mechanism also includes a fixed frame 5, which is fixed to the top of the fermentation tank 1. The inner cavity of the fixed frame 5 is rotatably connected to a worm gear 501, and the surface of the extension shaft of the gear 401 is fixedly connected to a worm wheel 502. The rotation of the worm gear 501 drives the worm wheel 502 to rotate in both directions, thereby driving the rack 402 and the grate 104 to lift and lower. The worm gear 501 and the worm wheel 502 are meshed together. The worm gear 501 and the worm wheel 502 are designed to be self-locking to ensure the stability of the grate 104 during the lifting process and prevent the grate 104 from sliding down on its own due to gravity.

[0029] The stirring rod 103 is mounted on the stirring shaft 102 and is evenly distributed along the axial direction of the stirring shaft 102. It can effectively disperse the burdock slices and promote their contact and mixing with the fermentation liquid.

[0030] The fermenter 1 is equipped with an insulation layer 6, which is a polyurethane foam insulation layer with a thickness of 50-100 mm. The polyurethane foam insulation layer can effectively maintain a constant temperature environment inside the fermenter 1 and ensure the stability of the fermentation process.

[0031] The stirring motor 101 has a power of 0.5-2 kW, and the swing motor 3 has a power of 0.2-1 kW. Both motors are frequency converters, which can adjust the stirring and swinging speeds according to the needs of the fermentation process.

[0032] Fermentation tank 1 has a cylindrical structure with an arc-shaped bottom to reduce material accumulation. The stirring motor 101 is installed on the top of fermentation tank 1 and is connected to the stirring rod 103 through the stirring shaft 102. It is used to break up the burdock slices in the accumulation state during the stirring process.

[0033] In use, burdock slices and fermentation solution are added to fermentation tank 1 through the feed pipe. Then, the stirring motor 101 is started, driving the stirring shaft 102 and stirring rod 103 to rotate, thus dispersing the burdock slices piled up inside fermentation tank 1. Simultaneously, the oscillating motor 3 is started. The oscillating motor 3 drives the rotating shaft 202 to rotate through the synchronous pulley 301 and synchronous belt 302. The rotation of the rotating shaft 202 in turn drives the cam 203 to rotate, which in turn drives the oscillating arm 204 to reciprocate. The reciprocating motion of the oscillating arm 204 in turn drives the oscillating support 201 to oscillate, thereby causing fermentation tank 1 to oscillate in the left and right directions. The rotation of the stirring rod 103 and the oscillation of fermentation tank 1 create a complex vortex and inertial force that alternately act, pushing the tank wall and... The material at the bottom flows towards the center, reducing mixing dead zones and ensuring full contact between the burdock slices and the fermentation liquid. During the stirring process, when the grate 104 needs to be raised or lowered to adjust the material accumulation height, the handle is rotated to drive the worm gear 501 to rotate. The worm gear 501 drives the worm wheel 502 to rotate forward and backward. The rotation of the worm wheel 502 drives the gear 401 to rotate. The rotation of the gear 401 drives the grate 104 to be raised or lowered through the rack 402 to adjust the material accumulation height. Due to the self-locking function of the meshing design of the worm gear 501 and the worm wheel 502, the grate 104 can be kept stable and reliable during the raising and lowering process. When the fermentation reaches the predetermined time, the stirring motor 101 and the swing motor 3 are stopped, and the discharge valve of the discharge pipe of the fermentation tank 1 is opened to discharge the fermented burdock tea.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fermentation apparatus for constant-temperature fermentation of burdock tea, comprising: The fermentation tank (1), stirring motor (101), stirring shaft (102), stirring rod (103), grate (104), and base (2) are characterized in that: the inner cavity of the base (2) is provided with a rocking mechanism, the rocking mechanism includes a rocking support (201) and a rocking drive assembly, the rocking support (201) is rotatably connected to the base (2) through a rocking bearing, the fermentation tank (1) is connected to the rocking support (201) through bolts, the rocking drive assembly includes a rotating shaft (202), the rotating shaft (202) is rotatably connected to the inner cavity of the base (2), two cams (203) are fixedly connected to the surface of the rotating shaft (202), and rocking arms (204) are rotatably connected to the surfaces of the two cams (203). The rocking arms (204) are rotatably connected to one side of the rocking support (201) through a pin, and the rocking drive assembly can drive the fermentation tank (1) to rock left and right.

2. The fermentation apparatus for constant-temperature fermentation of burdock tea according to claim 1, characterized in that: The swing drive assembly also includes a swing motor (3), which is installed inside the base (2). One end of the output shaft of the swing motor (3) and the surface of the rotating shaft (202) are both fixedly connected to a synchronous pulley (301). The surface of the synchronous pulley (301) is fitted with a synchronous belt (302). The swing motor (3) drives the swing arm (204) to drive the fermentation tank (1) to swing left and right.

3. The fermentation apparatus for constant-temperature fermentation of burdock tea according to claim 1, characterized in that: The grate (104) is located inside the fermentation tank (1). The grate (104) is raised and lowered by a lifting mechanism. The lifting mechanism includes two connecting frames (4). The two connecting frames (4) are fixed to the top of the fermentation tank (1). The inner cavities of the two connecting frames (4) are rotatably connected to gears (401). The inner cavity of the fermentation tank (1) is slidably connected to a rack (402). The bottom end of the rack (402) is connected to one end of the fermentation tank (1). The rack (402) and the gear (401) support are meshed.

4. The fermentation apparatus for constant-temperature fermentation of burdock tea according to claim 3, characterized in that: The lifting mechanism also includes a fixed frame (5), which is fixed to the top of the fermentation tank (1). The inner cavity of the fixed frame (5) is rotatably connected to a worm gear (501), and a worm wheel (502) is fixedly connected to the surface of the extension shaft of the gear (401). The worm gear (501) and the worm wheel (502) are meshed together, and the worm gear (501) and the worm wheel (502) are designed to be self-locking.

5. The fermentation apparatus for constant-temperature fermentation of burdock tea according to claim 1, characterized in that: The stirring rod (103) is mounted on the stirring shaft (102), and the stirring rod (103) is evenly distributed along the axial direction of the stirring shaft (102).

6. The fermentation apparatus for constant-temperature fermentation of burdock tea according to claim 1, characterized in that: The fermenter (1) is provided with an insulation layer (6) inside. The insulation layer (6) is a polyurethane foam insulation layer with a thickness of 50-100 mm.

7. The fermentation apparatus for constant-temperature fermentation of burdock tea according to claim 2, characterized in that: The stirring motor (101) has a power of 0.5-2 kW, and the swing motor (3) has a power of 0.2-1 kW. Both motors are controlled by frequency conversion.

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