Stirring device for food processing

Abstract

The utility model relates to a stirring device, and particularly discloses a stirring device for food processing, which comprises a horizontally arranged stirring tank with two sealed ends, a material guide pipe arranged on the side wall of the stirring tank, a supporting device for supporting the stirring tank, a first driving device for driving the stirring tank to rotate along the axis of the stirring tank, and a stirring shaft horizontally arranged in the stirring tank, the stirring blade is horizontally arranged in the stirring tank, the connecting rod is used for connecting the stirring blade and the stirring shaft, the through holes are formed in the two end parts of the stirring tank, the connecting blocks are arranged in the through holes, and the second driving device is used for driving the stirring shaft to rotate; the stirring blades are arranged close to the inner wall of the stirring tank, the two ends of the stirring shaft are rotationally connected with connecting blocks, and the connecting blocks are made of rubber materials. According to the stirring device for food processing, the effective wall scraping effect on the stirring tank can be kept, and abrasion can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of stirring devices, and more specifically, to a stirring device for food processing. Background Technology

[0002] As a core piece of equipment in chemical and biological production, the mixing device plays a crucial role in processes such as material mixing, mass transfer, and heat transfer.

[0003] Especially in fields such as bio-fermentation and food processing, because the raw materials generally have high viscosity, the materials are very easy to adhere to the inner wall of the mixing tank to form a stagnant layer. This not only reduces the mixing efficiency, but also leads to local overheating or material deterioration.

[0004] Traditional solutions employ wall-scraping agitator blades, achieving self-cleaning through close contact between the blades and the tank wall. However, this design has significant drawbacks: continuous friction between the metal and the tank accelerates blade tip wear, and the resulting debris may contaminate materials, posing a threat to the safety of pharmaceuticals or food. Furthermore, to ensure effective wall scraping, the assembly gap between the blades and the tank must be controlled within ±0.5mm, which imposes stringent requirements on machining precision and installation / commissioning, significantly increasing equipment manufacturing costs. Utility Model Content

[0005] The purpose of this invention is to provide a stirring device for food processing that can maintain an effective scraping effect on the mixing tank and effectively reduce wear.

[0006] This utility model is achieved through the following technical solution: The food processing stirring device of this utility model includes a horizontally arranged stirring tank with both ends sealed, a guide pipe provided on the side wall of the stirring tank, a support device for supporting the stirring tank, a first driving device for driving the stirring tank to rotate along its axis, a stirring shaft horizontally arranged in the stirring tank, a stirring blade horizontally arranged in the stirring tank, a connecting rod for connecting the stirring blade and the stirring shaft, through holes opened at both ends of the stirring tank, connecting blocks provided in the through holes, and a second driving device for driving the stirring shaft to rotate; the stirring blade is arranged close to the inner wall of the stirring tank, and both ends of the stirring shaft are rotatably connected to the connecting blocks, which are made of rubber.

[0007] Furthermore, the first driving device includes a driven wheel disposed on the outer wall of the mixing tank, a first motor, a driving wheel disposed on the output shaft of the first motor, and a transmission belt for connecting the driving wheel and the driven wheel.

[0008] Furthermore, the support device includes a pair of support rings respectively fitted onto the outer walls of both ends of the mixing tank, and a support frame for supporting the support rings; the mixing tank is rotatably disposed within the support rings.

[0009] Furthermore, the second driving device includes a second motor located at one end of the mixing tank for connecting the second motor to the support rod of the mixing tank; the output shaft of the second motor is connected to the mixing shaft.

[0010] Furthermore, the output shaft of the second motor is connected to the stirring shaft by a flexible connection.

[0011] Furthermore, the output shaft end of the second motor is provided with a first connecting plate, and the end of the stirring shaft near the second motor is provided with a second connecting plate. The first connecting plate and the second connecting plate are connected by multiple connecting strips. The first connecting plate is parallel to the second connecting plate, and the axis of the stirring shaft is perpendicular to the plane where the first connecting plate is located.

[0012] Furthermore, the stirring blades are provided in multiples, and the multiple stirring blades are distributed circumferentially around the stirring shaft.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: In the food processing stirring device of this utility model, the slurry is fed into the stirring tank through a feed pipe, then the feed pipe is closed, and the first drive device is activated to drive the stirring tank to rotate. During the rotation of the stirring tank, the second drive device drives the stirring shaft to rotate, which in turn drives the stirring blades to rotate, thus stirring the slurry in the stirring tank. During the stirring process, because the connecting blocks at both ends of the stirring shaft are made of rubber, the stirring shaft will press downwards against the connecting blocks under its own gravity, causing the stirring blades to move closer to the inner wall of the stirring tank during rotation. The material is then scraped from the lower side of the inner wall of the mixing tank to prevent the slurry from adhering to the inner wall. As the mixing tank rotates slowly, the agitator blades gradually scrape the material from various parts of the inner wall. This ensures that the agitator blades fully contact the inner wall of the mixing tank without causing excessive friction between the blades and the inner wall, thus avoiding damage to the mixing tank or the blades. Furthermore, the assembly precision requirements between the blades and the inner wall of the mixing tank are not high. Even if friction occurs during long-term use, the blades can still make good contact with the inner wall of the mixing tank under the action of gravity. Finally, the slurry is discharged through the feed pipe. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a food processing stirring device provided in an embodiment of this utility model;

[0015] Figure 2 A two-view structural schematic diagram of the food processing stirring device provided in an embodiment of this utility model;

[0016] Figure 3This is a schematic diagram of the internal structure of the mixing tank provided in an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the mixing tank provided in an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the stirring plate portion provided in an embodiment of the present utility model;

[0019] Figure 6 This is a schematic diagram of the connecting block portion provided in an embodiment of the present utility model;

[0020] Figure 7 for Figure 5 Enlarged view of part A in the middle.

[0021] Icons: 11-Mixing tank, 12-Feed pipe, 13-Through hole, 14-Connecting block, 15-Support ring, 16-Support frame, 20-First drive device, 21-First motor, 22-Drive wheel, 23-Transmission belt, 24-Driven wheel, 31-Mixing shaft, 32-Mixing blade, 33-Connecting rod, 40-Second drive device, 41-Second motor, 42-First connecting plate, 43-Enemy connecting plate, 44-Connecting belt, 45-Supporting rod. Detailed Implementation

[0022] Example

[0023] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 7As shown, the food processing mixing device of this embodiment includes a horizontally arranged mixing tank 11 with both ends sealed, a guide pipe 12 disposed on the side wall of the mixing tank 11, a support device for supporting the mixing tank 11, a first drive device 20 for driving the mixing tank 11 to rotate along its axis, a mixing shaft 31 horizontally disposed in the mixing tank 11, a mixing blade 32 horizontally disposed in the mixing tank 11, a connecting rod 33 for connecting the mixing blade 32 and the mixing shaft 31, through holes 13 opened at both ends of the mixing tank 11, connecting blocks 14 disposed in the through holes 13, and a second drive device 40 for driving the mixing shaft 31 to rotate; the mixing blade 32 is disposed close to the inner wall of the mixing tank 11, and both ends of the mixing shaft 31 are rotatably connected to the connecting blocks 14, which are made of rubber. Specifically, during use, the slurry is fed into the mixing tank 11 through the feed pipe 12, then the feed pipe 12 is closed, and the first drive device 20 is started to drive the mixing tank 11 to rotate. During the rotation of the mixing tank 11, the second drive device 40 drives the stirring shaft 31 to rotate, which in turn drives the stirring blades 32 to rotate, thus stirring the slurry in the mixing tank 11. During the stirring process, because the connecting blocks 14 at both ends of the stirring shaft 31 are made of rubber, the stirring shaft 31 will press downwards against the connecting blocks 14 under its own weight, causing the stirring blades 32 to move closer to the lower side of the inner wall of the mixing tank 11 during rotation, thereby scraping the lower side of the inner wall of the mixing tank 11. To prevent slurry from adhering to the inner wall of the mixing tank 11, the mixing blades 32 gradually scrape the slurry from various parts of the inner wall of the mixing tank 11 as the mixing tank 11 slowly rotates. This ensures that the mixing blades 32 fully contact the inner wall of the mixing tank 11 without causing excessive friction between the mixing blades 32 and the inner wall of the mixing tank 11, thus avoiding damage to the mixing tank 11 or the mixing blades 32. Furthermore, the assembly precision requirements between the mixing blades 32 and the inner wall of the mixing tank 11 are not high. Even if friction occurs during prolonged use, the mixing blades 32 can still maintain good contact with the inner wall of the mixing tank 11 under the influence of gravity. Finally, the slurry is discharged through the feed pipe 12. It should be noted that the volume of slurry in the mixing tank 11 is usually less than half the capacity of the mixing tank 11. This results in a small amount of slurry contacting the connecting block 14, which provides a certain degree of sealing. If the amount of slurry is large and submerges the connecting block 14, a proper seal at the connecting block 14 is necessary.

[0024] In this embodiment, the first driving device 20 includes a driven wheel 24 disposed on the outer wall of the mixing tank 11, a first motor 21, a driving wheel 22 disposed on the output shaft of the first motor 21, and a transmission belt 23 for connecting the driving wheel 22 and the driven wheel 24. Specifically, the first motor 21 drives the mixing tank 11 to rotate via the transmission belt 23, changing direction with each revolution, which allows for better wiring. The transmission belt 23 needs to be equipped with a tensioning pulley or similar device. Gear transmission can also be used instead of the transmission belt 23.

[0025] The support device in this embodiment includes a pair of support rings 15 respectively fitted onto the outer walls of both ends of the mixing tank 11, and a support frame 16 for supporting the support rings 15; the mixing tank 11 is rotatably disposed within the support rings 15. Specifically, the mixing tank 11 is supported by a pair of support rings 15 and a pair of support frames 16, so that the mixing tank 11 can rotate stably, and ball bearings can be added at the contact points between the support rings 15 and the mixing tank 11.

[0026] In this embodiment, the second drive device 40 includes a second motor 41 located at one end of the mixing tank 11, used to connect the second motor 41 to a support rod 45 of the mixing tank 11; the output shaft of the second motor 41 is connected to the stirring shaft 31. The output shaft of the second motor 41 and the stirring shaft 31 are connected by a flexible connection. Specifically, the second motor 41 is fixed to the mixing tank 11 using the support rod 45, meaning the relative position between the mixing tank 11 and the second motor 41 remains constant. However, since the relative position between the stirring shaft 31 and the mixing tank 11 constantly changes, a flexible connection is needed between the stirring shaft 31 and the motor output shaft to accommodate these changes in relative position.

[0027] In this embodiment, the output shaft end of the second motor 41 is provided with a first connecting plate 42, and the end of the stirring shaft 31 near the second motor 41 is provided with a second connecting plate. The first connecting plate 42 and the second connecting plate are connected by multiple connecting straps 44. The first connecting plate 42 is parallel to the second connecting plate, and the axis of the stirring shaft 31 is perpendicular to the plane where the first connecting plate 42 is located. Specifically, a flexible connection between the motor output shaft and the stirring shaft 31 can be formed by multiple connecting straps 44. Alternatively, a connection method combining a universal joint and a telescopic joint can be used.

[0028] In this embodiment, there are multiple stirring blades 32, which are distributed circumferentially around the stirring shaft 31.

[0029] In summary, the food processing mixing device of this embodiment, during use, feeds the slurry into the mixing tank 11 through the feed pipe 12, then closes the feed pipe 12, and starts the first drive device 20 to drive the mixing tank 11 to rotate. During the rotation of the mixing tank 11, the second drive device 40 drives the stirring shaft 31 to rotate, which in turn drives the stirring blades 32 to rotate, thus stirring the slurry in the mixing tank 11. During the stirring process, because the connecting blocks 14 at both ends of the stirring shaft 31 are made of rubber, the stirring shaft 31 will press downward against the connecting blocks 14 under its own weight, causing the stirring blades 32 to move closer to the lower side of the inner wall of the mixing tank 11 during rotation, thereby stirring the mixing tank 11. The lower side of the inner wall is scraped to prevent the slurry from adhering to the inner wall of the mixing tank 11. As the mixing tank 11 rotates slowly, the stirring blades 32 will gradually scrape the material from various parts of the inner wall of the mixing tank 11. This ensures that the stirring blades 32 fully contact the inner wall of the mixing tank 11 without causing excessive friction between the stirring blades 32 and the inner wall of the mixing tank 11, thus avoiding damage to the mixing tank 11 or the stirring blades 32. Furthermore, the assembly precision requirements between the stirring blades 32 and the inner wall of the mixing tank 11 are not high. Even if the stirring blades 32 generate friction during long-term use, they can still make good contact with the inner wall of the mixing tank 11 under the action of gravity. Finally, the slurry can be discharged through the guide pipe 12.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stirring device for food processing, characterized in that: The system includes a horizontally arranged mixing tank (11) with both ends sealed, a guide pipe (12) disposed on the side wall of the mixing tank (11), a support device for supporting the mixing tank (11), a first drive device (20) for driving the mixing tank (11) to rotate along its axis, a stirring shaft (31) horizontally disposed in the mixing tank (11), a stirring blade (32) horizontally disposed in the mixing tank (11), a connecting rod (33) for connecting the stirring blade (32) and the stirring shaft (31), through holes (13) opened at both ends of the mixing tank (11), a connecting block (14) disposed in the through hole (13), and a second drive device (40) for driving the stirring shaft (31) to rotate. The stirring blade (32) is located close to the inner wall of the stirring tank (11), and both ends of the stirring shaft (31) are rotatably connected to the connecting block (14), which is made of rubber.

2. The mixing device for food processing according to claim 1, characterized in that: The first drive device (20) includes a driven wheel (24) disposed on the outer wall of the mixing tank (11), a first motor (21), a drive wheel (22) disposed on the output shaft of the first motor (21), and a transmission belt (23) for connecting the drive wheel (22) and the driven wheel (24).

3. The mixing device for food processing according to claim 1, characterized in that: The support device includes a pair of support rings (15) respectively fitted on the outer walls of both ends of the mixing tank (11), and a support frame (16) for supporting the support rings (15); the mixing tank (11) is rotatably disposed in the support rings (15).

4. The mixing device for food processing according to claim 1, characterized in that: The second drive device (40) includes a second motor (41) located at one end of the mixing tank (11) for connecting the second motor (41) to the support rod (45) of the mixing tank (11); the output shaft of the second motor (41) is connected to the stirring shaft (31).

5. The mixing device for food processing according to claim 4, characterized in that: The output shaft of the second motor (41) is softly connected to the stirring shaft (31).

6. The mixing device for food processing according to claim 5, characterized in that: The output shaft end of the second motor (41) is provided with a first connecting plate (42), and the end of the stirring shaft (31) near the second motor (41) is provided with a second connecting plate. The first connecting plate (42) and the second connecting plate are connected by multiple connecting strips (44). The first connecting plate (42) is parallel to the second connecting plate, and the axis of the stirring shaft (31) is perpendicular to the plane where the first connecting plate (42) is located.

7. The mixing device for food processing according to claim 1, characterized in that: The stirring blades (32) are provided in multiples, and the multiple stirring blades (32) are distributed in a circular pattern around the stirring shaft (31).

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