Yeast material mixing device

Abstract

The utility model discloses a koji material mixing device which comprises a frame and a material box stirring device, a material box is erected in the frame; an upward opening is formed in the material box, and a discharging opening is formed in the bottom of the material box; the stirring device comprises a motor, a gear box, a first rotating shaft, a second rotating shaft, a first stirrer and a second stirrer; the gearbox is connected above the frame; an output shaft of the motor is fixedly connected with a first rotating shaft downwards; the first rotating shaft penetrates through the gear box and extends into the material box; the outer surface of the first rotating shaft in the feed box is connected with a first stirrer; the first rotating shaft is sleeved with the second rotating shaft, and the first rotating shaft is in transmission connection with the second rotating shaft through a gearbox. The second rotating shaft is shorter than the first rotating shaft; the outer surface of the second rotating shaft is connected with a second stirrer; the second stirrer clings to the inner surface of the material box; the first rotating shaft and the second rotating shaft rotate in opposite directions; the koji materials are stirred more uniformly, the koji materials remaining on the side wall are scraped away while stirring is conducted, and the koji materials are fully discharged after stirring is completed.

Description

Technical Field

[0001] This utility model relates to the field of brewing machinery, and in particular to a koji mixing device. Background Technology

[0002] The yeast starter is made by introducing Aspergillus conidia into rice that has been thoroughly steamed and then kept warm. Mycelia will then grow abundantly on the rice grains. The amylase produced by Aspergillus saccharifies the starch in the rice. Therefore, it has been used as a raw sugar along with malt since ancient times to make wine, sweet wine, and soy sauce.

[0003] Existing yeast mixing devices, such as CN212492587U, disclose a raw material lifting and mixing device for making yeast. It includes a frame, a material box located at one end of the frame, a transfer cylinder located at the other end of the frame, a hopper located at the bottom of the transfer cylinder, a connecting shaft inside the transfer cylinder, a rotating plate on the connecting shaft, and a first motor located at one end of the connecting shaft outside the transfer cylinder. The existing technology suffers from insufficient mixing, excessive yeast residue on the sidewalls of the mixing container, and inadequate yeast discharge after mixing.

[0004] Therefore, those skilled in the art urgently need to provide a koji mixing device that ensures uniform mixing and sufficient discharge of koji material after mixing. Utility Model Content

[0005] The purpose of this invention is to provide a koji mixing device to solve the problems existing in the prior art.

[0006] A material mixing device includes: a frame, a material box, and a stirring device; the material box is mounted inside the frame; the material box has an upward-facing opening and a discharge port at the bottom; the stirring device includes a motor, a gearbox, a first rotating shaft, a second rotating shaft, a first stirrer, and a second stirrer; the gearbox is fixedly connected above the frame; the output shaft of the motor is fixedly connected downward to one end of the first rotating shaft; the other end of the first rotating shaft extends through the gearbox into the interior of the material box; the first stirrer is fixedly connected to the outer surface of the first rotating shaft inside the material box; the second rotating shaft is sleeved on the first rotating shaft, and the first rotating shaft is driven by the gearbox to the second rotating shaft; the second rotating shaft is shorter than the first rotating shaft; the second stirrer is fixedly connected to the outer surface of the second rotating shaft; the second stirrer is in close contact with the inner surface of the material box; the first rotating shaft and the second rotating shaft rotate in opposite directions.

[0007] Preferably, the gearbox includes a rectangular housing, a first rectangular fixing block, a second rectangular fixing block, a first cylinder, a limiting plate, end face gears, and spur gears; two first rectangular fixing blocks are symmetrically arranged and parallel to each other; the opposing surfaces of the two first rectangular fixing blocks are respectively fixedly connected to the circular surface of one end of the first cylinder, and the circular surface of the other end of the first cylinder is fixedly connected to the limiting plate; the spur gears are respectively sleeved on the two first cylinders; two end face gears have opposing tooth surfaces, and the end face gears are symmetrically arranged and parallel vertically; the two spur gears are disposed between the two end face gears and mesh with each other; The inner surfaces of the upper and lower horizontal plates of the rectangular box are respectively fixedly connected to the second rectangular fixing blocks, which are in close contact with the plane of the end face gear. The first rotating shaft passes through the upper horizontal plate of the rectangular box, the center points of the two end face gears, the two second rectangular fixing blocks, and the lower horizontal plate of the rectangular box, and is fixedly connected to the first stirrer. The first rotating shaft is fixedly connected to the upper end face gear. The first rotating shaft is perpendicular to the lower horizontal plate of the rectangular box. The second rotating shaft passes through the lower horizontal plate of the rectangular box and the lower second rectangular fixing block, and is fixedly connected to the lower end face gear.

[0008] Preferably, the material box includes a cylindrical box and a frustum box; the diameters of the circular surfaces of the cylindrical box and the large circular surface of the frustum box are equal; both circular surfaces of the cylindrical box and the frustum box are open; the large circular end of the frustum box is fixedly connected to either circular end of the cylindrical box, and the other circular end of the cylindrical box faces upward; the small circular end of the frustum box is the discharge port; a baffle is movably connected to the small circular end of the frustum box; the second agitator is in close contact with the inner surface of the cylindrical box; the frame is movably connected to the outer surface of the cylindrical box.

[0009] Preferably, the first stirrer is a first stirring plate with an arc-shaped end, and the arc-shaped end of the first stirring plate matches the arc shape of the outer surface of the first rotating shaft; multiple first stirring plates are provided; the arc-shaped end of the first stirring plate is fixedly connected to the first rotating shaft and is perpendicular; the first rotating shaft is perpendicular to the ground, and the first stirring plate forms an angle of 30-90° with the ground.

[0010] Preferably, the second agitator includes a connecting plate, a first scraper, a second scraper, an arched plate, and a second stirring plate; two connecting plates are symmetrically arranged; one end of each of the two connecting plates is fixedly connected to the outer surface of the second rotating shaft and forms an obtuse angle; the other end of each of the two connecting plates is fixedly connected to one end of the first scraper; the other end of each of the two first scrapers is fixedly connected to one end of the second scraper, and the second scraper and the first scraper form an obtuse angle equal to the angle at the connection between the frustum and the cylindrical body; the other ends of each of the two second scrapers are respectively fixedly connected to both ends of the arched plate, and the arch of the arched plate faces upward; the first scraper is in close contact with the inner surface of the cylindrical body; the second scraper is in close contact with the inner surface of the frustum; the first scraper is fixedly connected to the second stirring plate in the direction of the first rotating shaft and is perpendicular to it; the first scraper is perpendicular to the ground; the second stirring plate forms an angle of 30-90° with the ground.

[0011] Preferably, the frame includes a first support rod, a second support rod, a third support rod, a fourth support rod, a first support plate, a second support plate, a fifth support rod, a sixth support rod, a seventh support rod, and an eighth support rod; two of each of the first and second support rods are symmetrically arranged and parallel; the first support rod is perpendicular to the second support rod; two of the first support rods and two of the second support rods are sequentially fixedly connected to form a U-shaped structure, and two of the U-shaped structures are symmetrically arranged vertically and parallel; the third support rod is fixedly connected between the four corresponding corners of the two U-shaped structures; the fourth support rod is fixedly connected to the middle of the upper end of the two lower first support rods, and the fourth support rod is perpendicular to the first support rod; two fifth support rods are also fixedly connected to the upper ends of the two lower first support rods respectively; the fifth support rods are located on both sides of the fourth support rod; the fifth support rods form a triangle towards the fourth support rod. Structure: The upper ends of the fifth support rod and the fourth support rod are on the same plane and fixedly connected to the first support plate; a hand-cranked reducer is fixedly connected to one of the first support plates, and the output end of the hand-cranked reducer is fixedly connected to the outer surface of the cylindrical housing; the outer ring of a bearing is fixedly connected to the other first support plate; the inner ring of the bearing is fixedly connected to one end of a second cylinder, and the other end of the second cylinder is fixedly connected to the outer surface of the cylindrical housing; the second support plate is fixedly connected to the middle position of the outer side of the two upper first support plates; two sixth support rods and two seventh support rods are symmetrically arranged and parallel; the sixth support rod is perpendicular to the seventh support rod; the two sixth support rods and the two seventh support rods are fixedly connected in sequence to form a U-shaped structure, and the lower ends of the four corners are fixedly connected to the eighth support rod; the eighth support rod is detachably connected to the second support plate; the upper end of the sixth support rod is fixedly connected to the lower end of the rectangular housing.

[0012] Preferably, the vertical plate of the L-shaped plate is fixedly connected to the outer surface of the cylindrical box; the horizontal plate of the L-shaped plate is detachably connected to one end of the ninth support rod, and the other end of the ninth support rod is movably connected to any of the second support rods below.

[0013] Preferably, the support wheels are fixedly connected to the lower ends of the four corners of the U-shaped structure formed by the two lower first support rods and the two lower second support rods.

[0014] Compared with the prior art, the present invention provides a koji mixing device, which has the following beneficial effects:

[0015] This utility model includes: a frame, a material box, and a stirring device; the material box is mounted inside the frame; the frame supports the material box; the material box has an upward-facing opening and a discharge port at the bottom; the opening is for pouring the koji into the material box, and the discharge port is for discharging the stirred koji; the stirring device includes a motor, a gearbox, a first rotating shaft, a second rotating shaft, a first stirrer, and a second stirrer; the gearbox is fixedly connected above the frame; the gearbox causes the first rotating shaft and the second rotating shaft to rotate in opposite directions; the output shaft of the motor is fixedly connected downward to one end of the first rotating shaft; the other end of the first rotating shaft extends through the gearbox into the inside of the material box; stirring at the top makes it easier to discharge the koji from the material box than stirring at the bottom; the first stirring device includes a motor, a gearbox, a first rotating shaft, a second rotating shaft, a first stirrer, and a second stirrer; the gearbox is fixedly connected above the frame; the gearbox makes it easier to discharge the koji from the material box than stirring at the bottom; the first stirring device includes a motor, a gearbox, a first rotating shaft, a second rotating shaft, a first stirrer, and a second stirrer. The outer surface of a rotating shaft is fixedly connected to the first stirrer; a second rotating shaft is sleeved on the first rotating shaft, and the first rotating shaft is driven by the gearbox to the second rotating shaft; the second rotating shaft is shorter than the first rotating shaft; the outer surface of the second rotating shaft is fixedly connected to the second stirrer; the first stirrer and the second stirrer stir simultaneously, making the koji material more evenly stirred; the second stirrer is in close contact with the inner surface of the material box; the second stirrer is also used to continuously scrape off residual koji material on the side wall; the first rotating shaft and the second rotating shaft rotate in opposite directions; the reverse rotation makes the koji material more evenly stirred; this utility model can make the koji material more evenly stirred, scrape off residual koji material on the side wall while stirring, and make the koji material discharge more fully after stirring. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the stirring device of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the gearbox of this utility model;

[0020] Figure 4 This is a schematic diagram of the side structure of the spur gear of this utility model;

[0021] Figure 5 This is a schematic diagram of the first rectangular fixing block, the first cylinder, and the limiting plate of the present invention.

[0022] Figure 6 This is a schematic diagram of the bearing and the second cylindrical structure of this utility model.

[0023] Wherein: 1 is the frame; 101 is the first support rod; 102 is the second support rod; 103 is the third support rod; 104 is the fourth support rod; 105 is the first support plate; 106 is the second support plate; 107 is the fifth support rod; 108 is the sixth support rod; 109 is the seventh support rod; 110 is the eighth support rod; 2 is the material bin; 21 is the cylindrical box; 22 is the frustum box; 3 is the mixing device; 31 is the motor; 32 is the gearbox; 321 is the rectangular box; 322 is the first rectangular fixing block; 323 is the... Two rectangular fixing blocks; 324 is the first cylinder; 325 is the limiting plate; 326 is the end face gear; 327 is the spur gear; 33 is the first rotating shaft; 34 is the second rotating shaft; 35 is the first agitator; 36 is the second agitator; 361 is the connecting plate; 362 is the first scraper; 363 is the second scraper; 364 is the arched plate; 365 is the second mixing plate; 4 is the discharge port; 5 is the baffle; 6 is the hand-cranked reducer; 7 is the bearing; 8 is the second cylinder; 9 is the L-shaped plate; 10 is the ninth support rod; 11 is the support wheel. Detailed Implementation

[0024] 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.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-2As shown, a material mixing device includes: a frame 1, a material box 2, and a stirring device 3; the material box 2 is mounted inside the frame 1; the material box 2 has an upward-facing opening and a discharge port 4 at its bottom; the stirring device 3 includes a motor 31, a gearbox 32, a first rotating shaft 33, a second rotating shaft 34, a first stirrer 35, and a second stirrer 36; the gearbox 32 is fixedly connected above the frame 1; the output shaft of the motor 31 is fixedly connected downward to one end of the first rotating shaft 33; the other end of the first rotating shaft 33 passes through the gearbox. 32 extends into the interior of the material box 2; the outer surface of the first rotating shaft 33 inside the material box 2 is fixedly connected to the first agitator 35; the second rotating shaft 34 is sleeved on the first rotating shaft 33, and the first rotating shaft 33 is connected to the second rotating shaft 34 through the gearbox 32; the second rotating shaft 34 is shorter than the first rotating shaft 33; the outer surface of the second rotating shaft 34 is fixedly connected to the second agitator 36; the second agitator 36 is in close contact with the inner surface of the material box 2; the first rotating shaft 33 and the second rotating shaft 34 rotate in opposite directions.

[0027] In this invention, the frame 1 is used to raise the material box 2 to a certain height from the ground; the bottom of the material box 2 has a discharge port 4, which allows for more complete discharge of the koji material; the first rotating shaft 33 drives the second rotating shaft 34 through the gearbox 32, and the first rotating shaft 33 and the second rotating shaft 34 rotate in opposite directions, which in turn drives the first agitator 35 and the second agitator 36 to rotate in opposite directions, making the mixing of the koji material more uniform; at the same time, the second agitator 36 is in close contact with the inner surface of the material box 2, which can scrape the koji material off the side wall of the material box 2, thus making the discharge of the koji material more complete.

[0028] In one exemplary embodiment, such as Figure 3-5As shown, the gearbox 32 includes a rectangular housing 321, a first rectangular fixing block 322, a second rectangular fixing block 323, a first cylinder 324, a limiting plate 325, end face gears 326, and spur gears 327. Two first rectangular fixing blocks 322 are symmetrically arranged and parallel to each other. The opposing surfaces of the two first rectangular fixing blocks 322 are respectively fixedly connected to the circular surfaces of one end of the first cylinder 324, and the circular surfaces of the other end of the first cylinder 324 are fixedly connected to the limiting plate 325. The spur gears 327 are respectively fitted onto the two first cylinders 324. Two end face gears 326 have opposing tooth surfaces, and the end face gears 326 are symmetrically arranged and parallel vertically. Two spur gears 327 are disposed between the two end face gears 326 and mesh with each other. The inner surfaces of the upper and lower horizontal plates of the rectangular box 321 are respectively fixedly connected to the second rectangular fixing blocks 323, which are in close contact with the plane of the end face gear 326; the first rotating shaft 33 passes through the upper horizontal plate of the rectangular box 321, the center points of the two end face gears 326, the two second rectangular fixing blocks 323, and the lower horizontal plate of the rectangular box 321 and is fixedly connected to the first stirrer 35; the first rotating shaft 33 is fixedly connected to the upper end face gear 326; the first rotating shaft 33 is perpendicular to the lower horizontal plate of the rectangular box 321; the second rotating shaft 34 passes through the lower horizontal plate of the rectangular box 321 and the lower second rectangular fixing block 323 and is fixedly connected to the lower end face gear 326.

[0029] In this invention, the first rotating shaft 33 passes through the upper horizontal plate of the rectangular box 321, the center point of the two end face gears 326, the two second rectangular fixing blocks 323, and the lower horizontal plate of the rectangular box 321, and is fixedly connected to the first stirrer 35. The upper end face gear 326 through which it passes is a fixed connection, while the others are rotatable connections. The second rotating shaft 34 passes through the lower horizontal plate of the rectangular box 321 and the lower second rectangular fixing block 323, both of which are rotatable connections. The motor drives the first rotating shaft 33 to rotate, and the first rotating shaft 33 drives the upper end face gear 326. The upper end face gear 326 drives the two spur gears 327 to rotate. The two spur gears 327 rotate in opposite directions, and the two spur gears 327 drive the lower end face gear 326 to rotate. Thus, the two end face gears 326 rotate in opposite directions, thereby achieving that the second rotating shaft 34 and the first rotating shaft 33 rotate in opposite directions, making the stirring more uniform.

[0030] In one exemplary embodiment, such as Figure 1As shown, the material box 2 includes a cylindrical box 21 and a frustum box 22; the diameters of the circular surfaces of the cylindrical box 21 and the larger circular surface of the frustum box 22 are equal; both circular surfaces of the cylindrical box 21 and the frustum box 22 are open; the larger circular end of the frustum box 22 is fixedly connected to either circular end of the cylindrical box 21, and the other circular end of the cylindrical box 21 faces upward; the smaller circular end of the frustum box 22 is the discharge port 4; a baffle 5 is movably connected to the smaller circular end of the frustum box 22; the second stirrer 36 is in close contact with the inner surface of the cylindrical box 21; the frame 1 is movably connected to the outer surface of the cylindrical box 21. In this invention, the side wall of the frustum box 22 is inclined, which allows the material to be discharged more smoothly; the baffle 5 is used to close the box during the stirring process.

[0031] In one exemplary embodiment, such as Figure 2 As shown, the first stirrer 35 is a first stirring plate with one end arc-shaped, and the arc-shaped end of the first stirring plate matches the arc shape of the outer surface of the first rotating shaft 33; multiple first stirring plates are provided; the arc-shaped end of the first stirring plate is fixedly connected to the first rotating shaft 33 and is perpendicular to it; the first rotating shaft 33 is perpendicular to the ground, and the first stirring plate forms an angle of 30-90° with the ground.

[0032] In this invention, the first stirring plate forms an angle of 30-90° with the ground, which is equivalent to the first stirring plate being fixed obliquely to the first rotating shaft 33. This arrangement results in better stirring effect and more uniform stirring.

[0033] In one exemplary embodiment, such as Figure 2 As shown, the second stirrer 36 includes a connecting plate 361, a first scraper 362, a second scraper 363, an arched plate 364, and a second stirring plate 365; two connecting plates 361 are symmetrically arranged; one end of each of the two connecting plates 361 is fixedly connected to the outer surface of the second rotating shaft 34 and forms an obtuse angle; the other end of each of the two connecting plates 361 is fixedly connected to one end of the first scraper 362; the other end of each of the two first scrapers 362 is fixedly connected to one end of the second scraper 363, and the second scraper 363 and the first scraper 362 form the frustum-shaped housing 2. 2. An obtuse angle equal to that at the connection point with the cylindrical box 21; the other ends of the two second scrapers 363 are respectively fixedly connected to the two ends of the arched plate 364, and the arched arc of the arched plate 364 faces upward; the first scraper 362 is in close contact with the inner surface of the cylindrical box 21; the second scraper 363 is in close contact with the inner surface of the frustum box 22; the first scraper 362 is fixedly connected to the second stirring plate 365 in the direction of the first rotating shaft 33 and is perpendicular to it; the first scraper 362 is perpendicular to the ground; the second stirring plate 365 forms an angle of 30-90° with the ground.

[0034] In this invention, the connecting plate 361, the first scraper 362, and the second scraper 363 are all straight plates; the second stirring plate 365 is also designed to make the stirring more uniform; the arched plate 364 is located at the upper end of the discharge port 4, and the width of the arched plate 364 is less than half the diameter of the discharge port 4. The arched plate 364 is designed to make the koji material better discharged after it is evenly stirred; the first scraper 362 and the second scraper 363 are used to scrape the koji material remaining on the side wall to make the koji material discharge more fully, avoid manual intervention, and avoid waste.

[0035] In one exemplary embodiment, such as Figure 1As shown, the frame 1 includes a first support rod 101, a second support rod 102, a third support rod 103, a fourth support rod 104, a first support plate 105, a second support plate 106, a fifth support rod 107, a sixth support rod 108, a seventh support rod 109, and an eighth support rod 110; two of the first support rods 101 and the second support rods 102 are symmetrically arranged and parallel; the first support rod 101 is perpendicular to the second support rod 102; the two first support rods 101 and the two second support rods 102 are fixedly connected in sequence to form a rectangular frame structure, and two such rectangular frame structures are symmetrically arranged up and down and parallel; the third support rod 103 is fixedly connected between the four corresponding corners of the two rectangular frame structures; the fourth support rod 104 is fixedly connected to the middle position of the upper ends of the two lower first support rods 101, and the fourth support rod 104 is perpendicular to the first support rod 101; the two fifth support rods 107 are also fixedly connected to the upper ends of the two lower first support rods 101 respectively; the fifth support rods 107 are located on both sides of the fourth support rod 104; the fifth support rods 107 form a triangular structure facing the fourth support rod 104; the upper ends of the fifth support rods 107 and the fourth support rod 104 are on the same plane and fixedly connected to the first support plate 105; a hand-operated speed reducer 6 is fixedly connected to one of the first support plates 105, and the output end of the hand-operated speed reducer 6 is fixedly connected to the outer surface of the cylindrical box body 21; the outer ring of a bearing 7 is fixedly connected to the other first support plate 105; the inner ring of the bearing 7 is fixedly connected to one end of the second cylinder 8, and the other end of the second cylinder 8 is fixedly connected to the outer surface of the cylindrical box body 21; the second support plate 106 is fixedly connected to the middle position outside the two upper first support plates 105; two of the sixth support rods 108 and the seventh support rods 109 are symmetrically arranged and parallel; the sixth support rod 108 is perpendicular to the seventh support rod 109; the two sixth support rods 108 and the two seventh support rods 109 are fixedly connected in sequence to form a rectangular frame structure, and the eighth support rod 110 is fixedly connected to the lower ends of the four corners; the eighth support rod 110 is detachably connected to the second support plate 106; the upper end of the sixth support rod 108 is fixedly connected to the lower end of the rectangular box body 321.

[0036] In this utility model, the hand-cranked reducer 6 is a hand-cranked worm gear reducer; the structure of the frame 1 makes the material box 2 more stable during the mixing process; the hand-cranked reducer 6 drives the material box 2 to rotate, the material box 2 drives the second cylinder 8 to rotate, and the second cylinder 8 drives the inner ring of the bearing 7 to rotate, achieving synchronization; the eighth support rod 110 can be detached in one of the following two ways: First, bolts are used to pass through the seventh support rod 109, the eighth support rod 110 and the second support plate 106 from top to bottom to achieve fastening; Second, the second support plate 106 has a hole that matches the eighth support rod 110, and the eighth support rod 110 passes through the hole on the second support plate 106, so that one end of the eighth support rod 110 is located at the lower end of the second support plate 106, and the part of the eighth support rod 110 located at the lower end of the second support plate 106 has a through hole, and a stainless steel ball quick-release pin is used to pass through the through hole of the eighth support rod 110 to achieve fastening; the second detachable connection method is preferred, as it has a fast disassembly speed and high efficiency.

[0037] In this utility model, during cleaning, the eighth support rod 110 is disassembled, and a simple crane is used to lift the structure formed by the eighth support rod 110, the seventh support rod 109, and the sixth support rod 108, as well as the stirring device 3. The rotation of the material box 2 can make the side wall of the cylindrical box 21 parallel to the ground, making cleaning more convenient. The tilting of the cylindrical box 21 can also make it easier to feed the material.

[0038] In one exemplary embodiment, such as Figure 1 As shown, the vertical plate of the L-shaped plate 9 is fixedly connected to the outer surface of the cylindrical box 21; the horizontal plate of the L-shaped plate 9 is detachably connected to one end of the ninth support rod 10, and the other end of the ninth support rod 10 is movably connected to any of the second support rods 102 below.

[0039] In this invention, the horizontal plate of the L-shaped plate 9 and one end of the ninth support rod 10 can be connected by bolts and nuts. In use, it is only necessary to remove the bolts and nuts connecting the L-shaped plate 9 and the ninth support rod 10, and then rotate the ninth support rod 10. The connection between the ninth support rod 10 and the second support rod 102 can be rotated, so that the material box 2 can be rotated by the hand-cranked reducer 6. The L-shaped plate 9 and the ninth support rod 10 can be fixed with bolts and nuts without rotating the material box 2, so that the material box 2 is more stable when stirring the koji.

[0040] In one exemplary embodiment, such as Figure 1 As shown, the support wheels 11 are fixedly connected to the lower ends of the four corners of the U-shaped structure formed by the two lower first support rods 101 and the two lower second support rods 102.

[0041] In this utility model, the support wheel 11 has a built-in brake; when it needs to be moved, the brake is released to move it, and the brake is used to fix it after it is pushed to a suitable position; the material mixing device installed on the support wheel 11 is convenient for movement.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A koji mixing device, characterized in that, include: Frame (1), hopper (2) and mixing device (3); The material box (2) is installed inside the frame (1); the material box (2) has an upward opening and a discharge port (4) at the bottom of the material box (2). The stirring device (3) includes a motor (31), a gearbox (32), a first rotating shaft (33), a second rotating shaft (34), a first stirrer (35), and a second stirrer (36). The gearbox (32) is fixedly connected above the frame (1); The output shaft of the motor (31) is fixedly connected to one end of the first rotating shaft (33) with its output shaft facing downward; the other end of the first rotating shaft (33) extends through the gearbox (32) into the inside of the hopper (2); the outer surface of the first rotating shaft (33) inside the hopper (2) is fixedly connected to the first agitator (35). The second rotating shaft (34) is sleeved on the first rotating shaft (33), and the first rotating shaft (33) is connected to the second rotating shaft (34) through the gearbox (32). The second rotating shaft (34) is shorter than the first rotating shaft (33); the outer surface of the second rotating shaft (34) is fixedly connected to the second agitator (36); the second agitator (36) is in close contact with the inner surface of the hopper (2); The first rotating shaft (33) and the second rotating shaft (34) rotate in opposite directions; The gearbox (32) includes a rectangular housing (321), a first rectangular fixing block (322), a second rectangular fixing block (323), a first cylinder (324), a limiting plate (325), an end face gear (326), and a spur gear (327). Two first rectangular fixing blocks (322) are symmetrically arranged and parallel to each other; the opposite surfaces of the two first rectangular fixing blocks (322) are respectively fixedly connected to the circular surface of one end of the first cylinder (324), and the circular surface of the other end of the first cylinder (324) is fixedly connected to the limiting plate (325). The two first cylinders (324) are respectively fitted with the spur gears (327); The end face gears (326) have two tooth surfaces facing each other, and the end face gears (326) are symmetrically arranged and parallel to each other vertically; the two spur gears (327) are arranged between the two end face gears (326) and mesh with each other; The inner surface of the upper horizontal plate and the inner surface of the lower horizontal plate of the rectangular box (321) are respectively fixedly connected to the second rectangular fixing block (323), and the second rectangular fixing block (323) is in close contact with the plane of the end face gear (326); The first rotating shaft (33) passes through the upper horizontal plate of the rectangular box (321), the center points of the two end face gears (326), the two second rectangular fixing blocks (323), and the lower horizontal plate of the rectangular box (321) and is fixedly connected to the first stirrer (35); the first rotating shaft (33) and the upper end face gear (326) are fixedly connected; the first rotating shaft (33) is perpendicular to the lower horizontal plate of the rectangular box (321); The second rotating shaft (34) passes through the lower horizontal plate of the rectangular box (321) and the second rectangular fixing block (323) below, and is fixedly connected to the end face gear (326) below.

2. The slurry mixing device according to claim 1, characterized in that: The hopper (2) includes a cylindrical box body (21) and a frustum box body (22); The diameters of the circular surface of the cylindrical box (21) and the large circular surface of the frustum box (22) are equal; Both circular surfaces of the cylindrical box (21) and the frustum box (22) are set to be open; the large circular end of the frustum box (22) is fixedly connected to either circular end of the cylindrical box (21), and the other circular end of the cylindrical box (21) faces upward; The small round end of the frustum box (22) is the discharge port (4); the small round end of the frustum box (22) is movably connected to a baffle (5); The second stirrer (36) is in close contact with the inner surface of the cylindrical box (21); the outer surface of the cylindrical box (21) is movably connected to the frame (1).

3. The slurry mixing device according to claim 1, characterized in that: The first stirrer (35) is a first stirring plate with one end arc-shaped. The arc-shaped end of the first stirring plate matches the arc shape of the outer surface of the first rotating shaft (33). Multiple first stirring plates are provided. The arc-shaped end of the first stirring plate is fixedly connected to the first rotating shaft (33) and is perpendicular to it; the first rotating shaft (33) is perpendicular to the ground, and the first stirring plate forms an angle of 30-90° with the ground.

4. The slurry mixing device according to claim 2, characterized in that: The second agitator (36) includes a connecting plate (361), a first scraper (362), a second scraper (363), an arched plate (364), and a second stirring plate (365); Two connecting plates (361) are symmetrically arranged; one end of the two connecting plates (361) is fixedly connected to the outer surface of the second rotating shaft (34) and forms an obtuse angle; the other end of the two connecting plates (361) is fixedly connected to one end of the first scraper (362); The other ends of the two first scrapers (362) are fixedly connected to one end of the second scraper (363), and the second scraper (363) and the first scraper (362) form an obtuse angle equal to that at the connection between the frustum box (22) and the cylindrical box (21); The other ends of the two second scrapers (363) are respectively fixedly connected to the two ends of the arched plate (364), and the arched arc of the arched plate (364) faces upward; The first scraper (362) is in close contact with the inner surface of the cylindrical box (21); the second scraper (363) is in close contact with the inner surface of the frustum box (22); The first scraper (362) is fixedly connected to the second stirring plate (365) in the direction of the first rotating shaft (33) and is perpendicular to it; the first scraper (362) is perpendicular to the ground; the second stirring plate (365) forms an angle of 30-90° with the ground.

5. The slurry mixing device according to claim 2, characterized in that: The frame (1) includes a first support rod (101), a second support rod (102), a third support rod (103), a fourth support rod (104), a first support plate (105), a second support plate (106), a fifth support rod (107), a sixth support rod (108), a seventh support rod (109), and an eighth support rod (110). The first support rod (101) and the second support rod (102) are both symmetrically arranged in two parallel positions; the first support rod (101) is perpendicular to the second support rod (102). Two first support rods (101) and two second support rods (102) are fixedly connected in sequence to form a square structure. Two square structures are arranged symmetrically and parallel to each other. The third support rod (103) is fixedly connected between the four corresponding corners of the two square structures. The upper middle position of the two lower first support rods (101) is fixedly connected to the fourth support rod (104), which is perpendicular to the first support rod (101); the upper ends of the two lower first support rods (101) are also fixedly connected to two fifth support rods (107); the fifth support rods (107) are located on both sides of the fourth support rod (104); The fifth support rod (107) forms a triangular structure toward the fourth support rod (104); the upper ends of the fifth support rod (107) and the fourth support rod (104) are on the same plane and are fixedly connected to the first support plate (105). A hand-cranked reducer (6) is fixedly connected to one of the first support plates (105), and the output end of the hand-cranked reducer (6) is fixedly connected to the outer surface of the cylindrical housing (21); the outer ring of a bearing (7) is fixedly connected to another of the first support plates (105); the inner ring of the bearing (7) is fixedly connected to one end of a second cylinder (8), and the other end of the second cylinder (8) is fixedly connected to the outer surface of the cylindrical housing (21); The second support plate (106) is fixedly connected to the middle position of the outer side of the two upper first support plates (105); The sixth support rod (108) and the seventh support rod (109) are both symmetrically arranged in two parallel positions; the sixth support rod (108) is perpendicular to the seventh support rod (109); the two sixth support rods (108) and the two seventh support rods (109) are fixedly connected in sequence to form a square structure and the lower ends of the four corners are fixedly connected to the eighth support rod (110). The eighth support rod (110) is detachably connected to the second support plate (106); The upper end of the sixth support rod (108) is fixedly connected to the lower end of the rectangular box (321).

6. The koji mixing device according to claim 5, characterized in that: The outer surface of the cylindrical box (21) is fixedly connected to the vertical plate of the L-shaped plate (9); the horizontal plate of the L-shaped plate (9) is detachably connected to one end of the ninth support rod (10), and the other end of the ninth support rod (10) is movably connected to any of the second support rods (102) below.

7. The slurry mixing device according to claim 5, characterized in that: Support wheels (11) are fixedly connected to the lower ends of the four corners of the U-shaped structure formed by the two lower first support rods (101) and the two lower second support rods (102).

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