A dough raw material mixing device

Abstract

This utility model discloses a mixing device for koji powder raw materials, including a base, with support frames fixedly connected to both sides of the top of the base. A tilting drum is rotatably installed between the support frames on both sides. A mixing cylinder is movably installed inside the tilting drum. An extension tube shaft is fixedly installed at the bottom of the mixing cylinder, extending out of the bottom of the tilting drum and rotatably connected to the tilting drum. A drive device is installed at the bottom of the tilting drum, and the power output end of the drive device is connected to the extension tube shaft. A discharge disc is slidably installed inside the mixing cylinder, with a discharge rod fixedly installed in the middle of the discharge disc. The discharge rod slides through the central hole of the extension tube shaft. A discharge telescopic device is installed at the bottom of the tilting drum, and the telescopic end of the discharge telescopic device is connected to the discharge rod. The discharge disc can clean the inner wall of the mixing cylinder. When cleaning, personnel only need to clean the top part of the mixing cylinder and the top area of ​​the discharge disc, making the cleaning of the inner wall of the mixing cylinder more convenient.

Description

Technical Field

[0001] This utility model relates to the field of koji-making equipment technology, and in particular to a koji powder raw material mixing device. Background Technology

[0002] During koji making, the koji powder raw material and the old koji are mixed with water. Currently, U-shaped mixers are commonly used for this mixing process. After mixing, the resulting material adheres to the inner wall and impeller of the U-shaped mixer. Each time the material is discharged, a scraper is needed to clean the material adhering to the inner wall and impeller. Especially after koji making, the mixer will be shut down for a period of time, which may be several days or even longer. During this time, it is necessary to carefully clean the material adhering to the inner wall and impeller to prevent the material from deteriorating and affecting the mixing of the koji powder raw material in the next batch. Since the existing U-shaped mixer is not convenient for cleaning the material, we have proposed a koji powder raw material mixing device according to this application. Utility Model Content

[0003] The technical problem to be solved by this utility model is to solve the problems existing in the background art and provide a mixing device for koji powder raw materials. By sliding a stripping disc inside the mixing cylinder, the stripping disc is driven by a stripping telescopic device. During the movement of the stripping disc, the stripping disc can clean the inner wall of the mixing cylinder. When cleaning, the personnel only need to clean the top part of the mixing cylinder and the top area of ​​the stripping disc, making the cleaning of the inner wall of the mixing cylinder more convenient.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A mixing device for koji powder raw materials includes a base, with support frames fixedly connected to both sides of the top of the base. A tilting drum is rotatably installed between the support frames on both sides. One end of a tilting telescopic device is hinged to the base, and the other end is hinged to the tilting drum. A mixing cylinder is movably installed inside the tilting drum. An extension tube shaft is fixedly installed at the bottom of the mixing cylinder, extending out of the bottom of the tilting drum and rotatably connected to the tilting drum. A driving device is installed at the bottom of the tilting drum, and the power output end of the driving device is connected to the extension tube shaft to drive the mixing cylinder to rotate. A discharge disc is slidably installed inside the mixing drum. A discharge rod is fixedly installed in the middle of the discharge disc, sliding through the center hole of the extension tube shaft. A discharge telescopic device is installed at the bottom of the tilting drum, and the telescopic end of the discharge telescopic device is connected to the discharge rod to drive the discharge disc to move axially inside the mixing drum.

[0005] An extension plate is fixedly connected to one end of the bottom of the tilting bucket, and pins are fixedly connected to both sides of the end of the extension plate. The pins on both sides are rotatably connected to the support frames on both sides. Alternatively, two pins are fixedly connected to the side wall of the tilting bucket. The two pins are installed in symmetrical positions, and the pins on both sides are rotatably connected to the support frames on both sides.

[0006] The inner wall of the tilting drum is equipped with multiple sets of support wheels, which rotate and support the outer wall of the mixing cylinder.

[0007] A baffle ring is installed on the top of the tilting drum. The baffle ring is fitted around the outside of the mixing cylinder, and there is a gap between the baffle ring and the mixing cylinder.

[0008] The protruding tube shaft includes a support tube with a flange at one end. The flange is connected and fixed to the bottom of the mixing cylinder. A bearing is installed in the center hole at the bottom of the tilting bucket, and the support tube passes through the inner ring of the bearing.

[0009] A driven wheel is installed at one end of the support tube extending from the bottom of the tilting bucket. A bracket is installed at the top of the tilting bucket. The drive device is mounted on the bracket. A drive wheel is installed at the power output end of the drive device. The drive wheel and the driven wheel are driven by gear meshing, belt drive, or chain drive.

[0010] The inner wall of the mixing cylinder is axially fixed with multiple baffles, and the unloading disc is provided with notches at the positions of the corresponding baffles, with the notches slidingly engaging with the baffles; the telescopic end of the unloading telescopic device is equipped with a drive plate, which is rotatably connected to the unloading rod, and the drive plate is axially limited on the unloading rod.

[0011] The outer circumference of the unloading disc is provided with a sealing groove, and a sealing ring is installed in the sealing groove.

[0012] The bottom of the tilting bucket is also fixedly installed with a guide rod, and a guide sleeve is also installed on the drive plate. The guide rod slides through the guide sleeve.

[0013] The stripping rod is a hollow tubular structure with a water conveying channel inside. The upper end of the stripping rod extends into the mixing cylinder. The upper end of the stripping rod is closed and has water spray holes in the circumferential direction. A rotary joint is installed at the lower end of the stripping rod.

[0014] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:

[0015] 1. The base of this utility model is used to support the tilting drum via a support frame, and the tilting telescopic device is used to drive the tilting drum to switch between an upward and downward tilting state. The driving device drives the extension tube shaft to rotate, thereby driving the mixing cylinder to rotate and mix the koji powder raw materials. The discharge disc is slidably installed inside the mixing cylinder. When the tilting drum is in the downward tilting state, the discharge telescopic device drives the discharge rod to move, thereby causing the discharge disc to move axially to the upper position of the mixing cylinder. During the movement of the discharge disc, the discharge disc can clean the inner wall of the mixing cylinder. When cleaning, personnel only need to clean the top part of the mixing cylinder and the top area of ​​the discharge disc, making the cleaning of the inner wall of the mixing cylinder more convenient.

[0016] 2. This utility model welds a baffle plate to the inner wall of the mixing cylinder. When the mixing cylinder rotates, the baffle plate blocks the material so that the material can be turned over in the mixing cylinder, so that the material is mixed more evenly.

[0017] 3. This utility model guides the telescopic end of the unloading telescopic device with a guide rod to prevent deformation of the telescopic end and improve the stability of the unloading telescopic device operation.

[0018] 4. The material release rod of this utility model is a hollow tube structure with a water conveying channel inside. The upper end of the material release rod extends into the mixing cylinder. The upper end of the material release rod is closed and has water spray holes in the circumferential direction. A rotary joint is installed at the lower end of the material release rod so as to inject water into the mixing cylinder through the material release rod. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the structure from the right side of the middle view.

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0023] Figure 4 for Figure 3 A schematic diagram of the connection structure of the tilting drum, mixing cylinder, and unloading disc.

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0025] Figure 6 for Figure 4 Enlarged structural diagram at point B.

[0026] Figure 7 for Figure 4 Enlarged structural diagram at point C.

[0027] Figure 8 for Figure 3 The diagram shows the material removal disc moving to the top of the mixing cylinder.

[0028] Figure 9 This is a schematic diagram of the material stripping disc of this utility model.

[0029] Figure 10 This is a diagram showing the state of the material being discharged from the device.

[0030] Figure label:

[0031] Base 10, support frame 11, first ear seat 12;

[0032] 20. Tilting bucket, 21. Second ear seat, 22. Extension plate, 23. Support wheel, 24. Material stop ring, 25. Bracket, 26.

[0033] Tilting telescopic device 30,

[0034] Mixing cylinder 40, baffle 41, extension tube shaft 42, support tube 421, flange 422, bearing 423, first end cover 424, driven wheel 43, sliding sleeve 44, second end cover 45;

[0035] Drive unit 50, drive pulley 51, belt 52;

[0036] 60, notch 601, sealing groove 602, sealing ring 603, unloading rod 61, water conveying channel 62, water spray hole 63, limit nut 64;

[0037] 70 for unloading telescopic device, 71 for drive plate;

[0038] Guide rod 80, guide sleeve 81, guide rod seat 82;

[0039] Rotary joint 90, steel wire hose 91. Detailed Implementation

[0040] 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.

[0041] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0042] Example 1:

[0043] See Figure 1-10A mixing device for koji powder raw materials includes a base 10, with support frames 11 fixedly connected to both sides of the top of the base 10. A tilting drum 20 is rotatably installed between the support frames 11 on both sides. A tilting telescopic device 30 is hinged at one end to the base 10 and at the other end to the tilting drum 20. A mixing cylinder 40 is movably installed inside the tilting drum 20. An extension tube shaft 42 is fixedly installed at the bottom of the mixing cylinder 40, extending out of the bottom of the tilting drum 20, and the extension tube shaft 42 is rotatably connected to the tilting drum 20. A driving device is also included. The drive unit 50 is installed at the bottom of the tilting drum 20. The power output end of the drive unit 50 is connected to the extension tube shaft 42 to drive the mixing cylinder 40 to rotate. The unloading disc 60 is slidably installed in the mixing cylinder 40. The unloading rod 61 is fixedly installed in the middle of the unloading disc 60. The unloading rod 61 slides out from the center hole of the extension tube shaft 42. The unloading telescopic device 70 is installed at the bottom of the tilting drum 20. The telescopic end of the unloading telescopic device 70 is connected to the unloading rod 61 to drive the unloading disc 60 to move axially in the mixing cylinder 40.

[0044] The base 10 supports the tilting bucket 20 via the support frame 11, and the tilting telescopic device 30 drives the tilting bucket 20 to switch between an upward tilting state and a downward tilting state. Figure 1 The image shows an upward-sloping state. Figure 10 The diagram shows the angled downward position. The drive device 50 drives the extension tube shaft 42 to rotate, thereby causing the mixing cylinder 40 to rotate and mix the koji powder raw materials. The discharge disc 60 is slidably installed inside the mixing cylinder 40. When the tilting drum 20 is in the angled downward position, the discharge telescopic device 70 drives the discharge rod 61 to move, thereby causing the discharge disc 60 to move axially to the upper position of the mixing cylinder 40, as shown. Figure 8 As shown, during the movement of the stripping disc 60, the stripping disc 60 can clean the inner wall of the mixing cylinder 40. When cleaning, personnel only need to clean the top part of the mixing cylinder 40 and the top area of ​​the stripping disc 60, making it more convenient to clean the inner wall of the mixing cylinder 40.

[0045] See Figure 5 A sliding sleeve 44 is installed in the center hole of the protruding tube shaft 42. The stripping rod 61 is movably connected to the sliding sleeve 44. A second end cap 45 is installed at the bottom of the protruding tube shaft 42 by screws. The second end cap 45 limits the sliding sleeve 44 to prevent the sliding sleeve 44 from falling out of the protruding tube shaft 42.

[0046] In this embodiment, the tilting and telescopic device 30 is a hydraulic cylinder. Specifically, see... Figure 1 , 2A first ear seat 12 is welded to the base 10 between the support frames 11 on both sides. The lower end of the flipping telescopic device 30 is hinged to the first ear seat 12 via a pin. A second ear seat 21 is welded to the outer wall of the flipping barrel 20 at the position corresponding to the first ear seat 12. The telescopic end of the flipping telescopic device 30 is hinged to the second ear seat 21 via a pin. See also Figure 1 When the piston rod of the tilting telescopic device 30 extends, the tilting drum 20 and the mixing cylinder 40 are tilted upwards, at which point the materials in the mixing cylinder 40 are mixed; see also Figure 10 When the piston rod of the tilting telescopic device 30 retracts, the tilting barrel 20 and the mixing cylinder 40 are tilted downwards, which facilitates the discharge of the internal materials.

[0047] In this embodiment, the material unloading telescopic device 70 can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The drive device 50 is a geared motor.

[0048] In one of the solutions, see Figure 1 , 2 An extension plate 22 is fixedly connected to one end of the bottom of the tilting bucket 20. Pins 26 are fixedly connected to both sides of the end of the extension plate 22. The pins 26 on both sides are rotatably connected to the support frames 11 on both sides.

[0049] In another embodiment, two pins 26 are fixed to the side wall of the tilting bucket 20. The two pins 26 are installed in symmetrical positions, and the pins 26 on both sides are rotatably connected to the support frames 11 on both sides.

[0050] Specifically, bearing seats can be installed on the top of the support frames 11 on both sides, and the pin 26 cooperates with the bearing in the bearing seat to achieve a rotatable connection. Of course, through holes can also be opened on the support frame 11, and the pin 26 can be inserted into the through holes on the support frame 11 with clearance fit.

[0051] See Figure 3 The inner wall of the tilting drum 20 is equipped with multiple sets of support wheels 23, which rotate and support the outer wall of the mixing cylinder 40. By setting the support wheels 23, the outer wall of the mixing cylinder 40 is rotated and supported, thereby improving the stability of the mixing cylinder 40 during rotation.

[0052] In this embodiment, at least three sets of support wheels 23 are evenly distributed along the inner wall of the tilting drum 20, with each set containing at least two support wheels 23. Figure 3 , 4 As shown.

[0053] Specifically, the support wheel 23 includes a wheel seat and a roller. The wheel seat is welded to the inner wall of the tilting barrel 20, and an axle is installed on the wheel seat. The roller is rotatably mounted on the axle through a bearing.

[0054] Further, see Figure 3A baffle ring 24 is installed on the top of the tilting drum 20. The baffle ring 24 is fitted around the outside of the mixing cylinder 40. There is a gap between the baffle ring 24 and the mixing cylinder 40 to prevent debris from entering the gap between the tilting drum 20 and the mixing cylinder 40.

[0055] Specifically, the retaining ring 24 can be bolted to the top of the tilting drum 20.

[0056] See Figure 4 , 5 The protruding tube shaft 42 includes a support tube 421, one end of which is provided with a flange 422. The flange 422 is connected and fixed to the bottom of the mixing cylinder 40. A bearing 423 is installed in the center hole at the bottom of the tilting tank 20, and the support tube 421 passes through the inner ring of the bearing 423. Through the above structure, the protruding tube shaft 42 and the tilting tank 20 are rotatably connected, and the mixing cylinder 40 and the tilting tank 20 are limited in position.

[0057] Specifically, Figure 5 In the middle, the support tube 421 is bolted or welded to the bottom of the mixing cylinder 40 via the flange 422. The bottom center hole of the tilting tank 20 is provided with a bearing mounting position, and the bearing 423 is installed in the bearing mounting position. The diameter of the bearing mounting position on the support tube 421 is smaller than the outer diameter of the support tube 421. The bearing mounting position on the support tube 421 passes through the inner hole of the bearing 423. The bottom of the center hole of the tilting tank 20 is fitted with a first end cap 424 by screws. The first end cap 424 limits the bearing 423 on the lower side.

[0058] See Figure 4 , 5 A driven wheel 43 is installed at one end of the support tube 421 that extends out of the bottom of the tilting barrel 20. A bracket 25 is installed on the top of the tilting barrel 20. The drive device 50 is installed on the bracket 25. A drive wheel 51 is installed at the power output end of the drive device 50. The drive wheel 51 and the driven wheel 43 are driven by gear meshing, belt drive, or chain drive.

[0059] Specifically, when the driving wheel 51 and the driven wheel 43 are both gears, the driving wheel 51 and the driven wheel 43 are driven by gear meshing; when the driving wheel 51 and the driven wheel 43 are both pulleys, the driving wheel 51 and the driven wheel 43 are driven by belt; when the driving wheel 51 and the driven wheel 43 are both sprockets, the driving wheel 51 and the driven wheel 43 are driven by chain.

[0060] In this embodiment, the driving wheel 51 and the driven wheel 43 are pulleys, and the belt 52 is fitted onto the driving wheel 51 and the driven wheel 43.

[0061] Example 2:

[0062] Based on Example 1, see Figure 2Multiple baffles 41 are axially welded to the inner wall of the mixing cylinder 40. (See also...) Figure 9 The discharge disc 60 has a notch 601 at the position corresponding to the baffle 41, and the notch 601 slides with the baffle 41. A drive plate 71 is fixedly installed at the telescopic end of the discharge telescopic device 70. The drive plate 71 is rotatably connected to the discharge rod 61, and the drive plate 71 is axially limited on the discharge rod 61. By welding the baffle 41 to the inner wall of the mixing cylinder 40, the baffle 41 blocks the material when the mixing cylinder 40 rotates, so that the material tumbles in the mixing cylinder 40, making the material more evenly mixed. After the notch 601 slides with the baffle 41, the discharge disc 60 will rotate with the mixing cylinder 40. Therefore, see... Figure 6 The drive plate 71 is movably mounted on the step at the lower end of the stripper rod 61 through the mounting hole. The stripper rod 61 is also fixed with a limit nut 64 on the lower side of the drive plate 71, thereby placing the drive plate 71 on the step, allowing the stripper rod 61 to rotate, and the drive plate 71 can drive the stripper rod 61 to move axially.

[0063] Furthermore, to improve sealing, see Figure 9 The outer circumference of the unloading disc 60 is provided with a sealing groove 602, and a sealing ring 603 is installed in the sealing groove 602. In this embodiment, the sealing ring 603 can be a silicone sealing ring.

[0064] Example 3:

[0065] See Figure 4 Since the unloading rod 61 occupies the center position of the bottom of the tilting drum 20, the unloading telescopic device 70 can only be installed on one side of the bottom of the tilting drum 20. To improve the operational stability of the unloading telescopic device 70, based on Embodiment 1 or Embodiment 2, a guide rod 80 is also fixedly installed at the bottom of the tilting drum 20, and a guide sleeve 81 is also installed on the drive plate 71. The guide rod 80 slides through the guide sleeve 81. The guide rod 80 guides the telescopic end of the unloading telescopic device 70, preventing deformation of the telescopic end of the unloading telescopic device 70 and improving the operational stability of the unloading telescopic device 70.

[0066] Specifically, see Figure 4 A guide rod seat 82 is fixedly installed at the bottom of the tilting drum 20. One end of the guide rod 80 is fixedly connected to the guide rod seat 82, and the other end of the guide rod 80 slides through the guide sleeve 81. The guide rod 80, guide sleeve 81, and guide rod seat 82 can all be purchased in the market according to the corresponding models. The guide rod seat 82 can be bolted or welded to the bottom of the tilting drum 20. The guide rod 80 passes through the center hole of the guide rod seat 82, and the guide rod 80 and the guide rod seat 82 are interference fit.

[0067] In this embodiment, the material removal telescopic device 70 can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0068] Example 4:

[0069] Based on Example 1, Example 2, or Example 3, see [link to example]. Figure 4 , 5 7. The discharge rod 61 is a hollow tubular structure with a water delivery channel 62 inside. The upper end of the discharge rod 61 extends into the mixing cylinder 40. The upper end of the discharge rod 61 is closed and has water spray holes 63 arranged in the circumferential direction. A rotary joint 90 is installed at the lower end of the discharge rod 61. Through the above structure, water can be injected into the mixing cylinder 40 through the discharge rod 61.

[0070] In use, the rotary joint 90 is connected to the water supply steel wire hose 91. When the unloading rod 61 rotates, the steel wire hose 91 will not rotate because the rotary joint 90 is installed and the steel wire hose 91 has a certain degree of rigidity.

[0071] The rotary joint 90 is existing technology, such as the DN type rotary joint from Tengzhou Haoyang Sealing Technology Co., Ltd.

[0072] The working principle or working process of this utility model:

[0073] During installation, the base 10 is connected and secured to the concrete foundation with anchor bolts. For usage, please refer to... Figure 1 When the piston rod of the tilting telescopic device 30 extends, the tilting barrel 20 and the mixing cylinder 40 are tilted upwards. At this time, the raw materials of koji powder and old koji can be added quantitatively into the mixing cylinder 40. The driving device 50 drives the extension tube shaft 42 to rotate, thereby driving the mixing cylinder 40 to rotate and mix the raw materials of koji powder and old koji. During the mixing process, water is supplied by opening the valve on the steel wire hose 91. The water passes through the rotary joint 90 and the water supply channel 62, and finally sprays out from the water spray hole 63. After the water volume is sufficient, the valve is closed.

[0074] After the mixing cylinder 40 rotates for a period of time, the piston rod of the tilting telescopic device 30 retracts, and the tilting barrel 20 and the mixing cylinder 40 are in a downward-sloping position, as shown. Figure 10 As shown, the material inside the mixing cylinder 40 is poured out. Afterwards, the drive unit 50 stops operating.

[0075] Then, see Figure 8 The telescopic end of the unloading telescopic device 70 retracts, driving the unloading rod 61 to move, thereby causing the unloading disc 60 to move axially to the upper position of the mixing cylinder 40. During the movement of the unloading disc 60, the unloading disc 60 cleans the inner wall of the mixing cylinder 40. Figure 10 In the state shown, when cleaning, personnel only need to clean the top part of the mixing cylinder 40 and the top area of ​​the unloading plate 60, making it easier to clean the inner wall of the mixing cylinder 40.

[0076] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A mixing device for koji powder raw materials, characterized in that: Includes a base (10), on which support frames (11) are fixedly connected to the top two sides respectively. A tilting bucket (20) is rotatably installed between the support frames (11) on both sides. One end of the tilting telescopic device (30) is hinged to the base (10), and the other end is hinged to the tilting bucket (20). A mixing cylinder (40) is movably installed inside the tilting bucket (20). An extension tube shaft (42) is fixedly installed at the bottom of the mixing cylinder (40). The extension tube shaft (42) extends out of the bottom of the tilting bucket (20), and the extension tube shaft (42) is rotatably connected to the tilting bucket (20). A drive device (50) is installed... Installed at the bottom of the tilting drum (20), the power output end of the drive device (50) is connected to the extension tube shaft (42) to drive the mixing cylinder (40) to rotate; the unloading disc (60) is slidably installed in the mixing cylinder (40), and the unloading rod (61) is fixedly installed in the middle of the unloading disc (60). The unloading rod (61) slides out from the center hole of the extension tube shaft (42). The unloading telescopic device (70) is installed at the bottom of the tilting drum (20), and the telescopic end of the unloading telescopic device (70) is connected to the unloading rod (61) to drive the unloading disc (60) to move axially in the mixing cylinder (40).

2. The mixing device for koji powder raw materials according to claim 1, characterized in that: An extension plate (22) is fixedly connected to one end of the bottom of the tilting bucket (20). Pins (26) are fixedly connected to both sides of the end of the extension plate (22). The pins (26) on both sides are rotatably connected to the support frames (11) on both sides. Alternatively, two pins (26) are fixedly connected to the side wall of the tilting bucket (20). The two pins (26) are installed in symmetrical positions. The pins (26) on both sides are rotatably connected to the support frames (11) on both sides.

3. The mixing device for koji powder raw materials according to claim 1, characterized in that: The inner wall of the tilting drum (20) is equipped with multiple sets of support wheels (23), which rotate and support the outer wall of the mixing cylinder (40).

4. The mixing device for koji powder raw materials according to claim 3, characterized in that: A baffle ring (24) is installed on the top of the tilting drum (20). The baffle ring (24) is fitted around the outside of the mixing cylinder (40), and there is a gap between the baffle ring (24) and the mixing cylinder (40).

5. The mixing device for koji powder raw materials according to claim 1, characterized in that: The protruding tube shaft (42) includes a support tube (421), one end of which is provided with a flange (422). The flange (422) is connected and fixed to the bottom of the mixing cylinder (40). A bearing (423) is installed in the center hole at the bottom of the tilting bucket (20), and the support tube (421) passes through the inner ring of the bearing (423).

6. The mixing device for koji powder raw materials according to claim 5, characterized in that: The support tube (421) has a driven wheel (43) installed at one end extending from the bottom of the tilting bucket (20). A bracket (25) is installed on the top of the tilting bucket (20). The drive device (50) is installed on the bracket (25). The power output end of the drive device (50) is equipped with a drive wheel (51). The drive wheel (51) and the driven wheel (43) are driven by gear meshing, belt drive, or chain drive.

7. The mixing device for koji powder raw materials according to claim 1, characterized in that: The inner wall of the mixing cylinder (40) is axially fixed with multiple baffles (41). The unloading disc (60) is provided with a notch (601) at the position corresponding to the baffle (41). The notch (601) slides with the baffle (41). The telescopic end of the unloading telescopic device (70) is equipped with a drive plate (71). The drive plate (71) is rotatably connected with the unloading rod (61), and the drive plate (71) is axially limited on the unloading rod (61).

8. A mixing device for koji powder raw materials according to claim 1 or 7, characterized in that: The outer circumference of the unloading disc (60) is provided with a sealing groove (602), and a sealing ring (603) is installed in the sealing groove (602).

9. The mixing device for koji powder raw materials according to claim 7, characterized in that: The bottom of the flipping bucket (20) is also fixedly installed with a guide rod (80), and a guide sleeve (81) is also installed on the drive plate (71). The guide rod (80) slides through the guide sleeve (81).

10. A mixing device for koji powder raw materials according to claim 1 or 7, characterized in that: The stripping rod (61) is a hollow tube structure. The stripping rod (61) has a water conveying channel (62) inside. The upper end of the stripping rod (61) extends into the mixing cylinder (40). The upper end of the stripping rod (61) is closed and a water spray hole (63) is provided in the circumferential direction. A rotary joint (90) is installed at the lower end of the stripping rod (61).

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