Anti-caking stirring device for yogurt

Abstract

The utility model discloses a kind of anti-caking stirring devices for yoghurt, it is related to yoghurt production equipment technical field, including stirring tank body, the upper end of stirring tank body is equipped with support round frame, the upper end of support round frame is equipped with variable-speed motor, stirring tank body frame one end is equipped with control system, the upper end of stirring tank body is rotatably installed with rotating column, the upper end of stirring tank body is installed with hopper, the lower end of hopper is installed with guide cylinder, the inner wall of stirring tank body is installed with semicircle block.The utility model, realize the whole-process management and control of material from feeding to dispersion, shunt cone can avoid material concentrated accumulation, spiral deflector extends mixing path, double-layer screen realizes coarse and fine classification dispersion, effectively break the hard core agglomeration formed when powder auxiliary material and liquid raw material contact, lay good foundation for subsequent stirring.

Description

Technical Field

[0001] This utility model relates to the technical field of yogurt production equipment, and in particular to an anti-caking stirring device for yogurt. Background Technology

[0002] In the industrial production process of yogurt, the raw material mixing process is a key step that determines the quality of the product. Especially when the formula contains powdered excipients such as thickeners, sweeteners, and nutritional fortifiers, how to achieve efficient dispersion and mixing of powders and liquid raw materials such as milk to avoid clumping has become a common technical challenge in the industry.

[0003] However, existing yogurt mixing devices have many shortcomings in practical applications: the pre-dispersion structure is missing or poorly designed, most devices simply feed the material directly through a simple funnel, and the powdered auxiliary materials and liquid raw materials come into concentrated contact at the inlet, which easily forms hard clumps due to uneven wetting. The subsequent mixing mechanism is difficult to completely break them up, resulting in a grainy texture in the final product, affecting the taste and quality; some devices equipped with simple screens lack a diversion and guiding structure, and the material is easy to accumulate and clog on the screen surface, greatly reducing the dispersion effect. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an anti-caking stirring device for yogurt.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a yogurt anti-caking stirring device, comprising a stirring tank, a supporting circular frame installed at the upper end of the stirring tank, a variable speed motor installed at the upper end of the supporting circular frame, a control system installed at one end of the stirring tank frame, a rotating column rotatably installed through the upper end of the stirring tank, a funnel installed through the upper end of the stirring tank, a guide cylinder installed at the lower end of the funnel, a semi-circular block installed on the inner wall of the stirring tank, a spiral guide plate installed on the inner wall of the guide cylinder, a flow divider cone fixedly installed inside the guide cylinder and at its center, and an upper coarse screen and a lower fine screen installed inside the guide cylinder.

[0006] Preferably, the outer wall of the guide cylinder is fixed to the inner wall of the semicircular block, and the spiral guide plate is located above the flow divider cone.

[0007] Preferably, the upper coarse screen is located below the diversion cone, and the lower fine screen is located below the upper coarse screen.

[0008] Preferably, the mixing tank is equipped with a mixing assembly inside, wherein the upper end of the mixing rod in the mixing assembly is fixed to the lower end of the rotating column.

[0009] Preferably, the upper end of the rotating column is fixed to the output end of the variable speed motor, and the variable speed motor is connected to the control system signal.

[0010] Preferably, the outer wall of the stirring rod in the stirring assembly is equipped with two sets of circular frames, and the inner wall of the stirring tank is provided with three sets of elastic scrapers.

[0011] Preferably, one end of each of the three sets of elastic scrapers is equipped with two sets of connecting blocks, and the other end of each of the six sets of connecting blocks is fixed to the outer wall of the two sets of circular frames.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the pre-dispersion effect is significant, solving the problem of agglomeration: The pre-dispersion unit, composed of a funnel, a spiral guide plate, a flow divider cone, and a double-layer screen, realizes full-process control of materials from feeding to dispersion. The flow divider cone can avoid material accumulation, the spiral guide plate extends the mixing path, and the double-layer screen realizes coarse and fine graded dispersion, effectively breaking the hard core agglomerates formed when powdered excipients come into contact with liquid raw materials, laying a good foundation for subsequent stirring.

[0013] 2. In this utility model, the anti-adhesion effect is excellent and the waste of raw materials is reduced: the three sets of elastic scrapers are fixed to the ring frame by the connecting block and rotate synchronously with the stirring component. The scrapers made of food-grade silicone material are closely attached to the polished inner wall of the tank and scrape off the attached material in real time. This not only reduces the waste of raw materials, but also avoids the pollution caused by the deterioration of residual materials to subsequent production. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of an anti-caking stirring device for yogurt; Figure 2 This utility model provides a partial half-sectional structural diagram of an anti-caking stirring device for yogurt; Figure 3 This utility model provides a half-sectional structural diagram of a funnel, a semi-circular block, and a guide cylinder for an anti-caking stirring device for yogurt. Figure 4 This utility model provides a structural diagram of the stirring assembly, the ring frame, the elastic scraper, and the connecting block of an anti-caking stirring device for yogurt.

[0015] Legend: 1. Mixing tank; 2. Supporting circular frame; 3. Variable speed motor; 4. Control system; 5. Rotating column; 6. Funnel; 7. Mixing assembly; 8. Circular ring frame; 9. Elastic scraper; 10. Semi-circular block; 11. Guide cylinder; 12. Spiral guide plate; 13. Diverting cone; 14. Upper coarse screen; 15. Lower fine screen; 16. Connecting block. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides an anti-caking stirring device for yogurt, including a stirring tank 1, a supporting circular frame 2 installed at the upper end of the stirring tank 1, a variable speed motor 3 installed at the upper end of the supporting circular frame 2, a control system 4 installed at one end of the frame of the stirring tank 1, a rotating column 5 rotatably installed through the upper end of the stirring tank 1, a funnel 6 rotatably installed through the upper end of the stirring tank 1, a guide cylinder 11 installed at the lower end of the funnel 6, and a semi-circular block 1 installed on the inner wall of the stirring tank 1. 0. A spiral guide plate 12 is installed on the inner wall of the guide cylinder 11. A flow divider cone 13 is fixedly installed inside the guide cylinder 11 and in the middle. An upper coarse screen 14 and a lower fine screen 15 are installed inside the guide cylinder 11. The outer wall of the guide cylinder 11 is fixed to the inner wall of the semi-circular block 10. The spiral guide plate 12 is located above the flow divider cone 13. The upper coarse screen 14 is located below the flow divider cone 13. The lower fine screen 15 is located below the upper coarse screen 14.

[0019] The mixing tank 1 is equipped with a mixing assembly 7. The upper end of the mixing rod in the mixing assembly 7 is fixed to the lower end of the rotating column 5. The upper end of the rotating column 5 is fixed to the output end of the variable speed motor 3. The variable speed motor 3 is connected to the control system 4 via signal.

[0020] The specific settings and functions of this embodiment are described below. The mixing tank 1 is a cylindrical cavity made of food-grade stainless steel, with its inner wall precision polished to effectively reduce the risk of material adhesion. The bottom of the tank is designed with an inverted conical structure to facilitate material collection and discharge. A discharge port is reserved on the lower part of the side wall of the tank and equipped with a solenoid valve control switch. A support frame 2 is fixedly installed on the upper end of the mixing tank 1 by bolts. The support frame 2 is forged from high-strength aluminum alloy and has a ring frame structure with a reserved mounting hole in the center for fitting the rotating column 5. A variable speed motor 3 is installed in the center of the upper end of the support frame 2, which can accurately match the mixing speed according to the viscosity changes of the yogurt raw materials. A control system 4 is fixedly installed on one end of the frame of the mixing tank 1 by a bracket. The control system 4 uses a PLC controller as its core and is equipped with a touch screen, which can realize the visual operation of parameters such as speed adjustment and mixing time setting. It is also connected to the variable speed motor 3 through a communication cable to realize real-time monitoring and precise control of the motor's operating status.

[0021] A rotating column 5 is mounted through the center of the upper end of the mixing tank 1 and rotates through a bearing. The rotating column 5 is a solid stainless steel shaft. Its upper end is rigidly connected to the output end of the variable speed motor 3 through a coupling, and its lower end extends into the interior of the mixing tank 1 and is fixedly connected to the mixing assembly 7 to achieve stable power transmission.

[0022] The feeding pre-dispersion unit is the core structure to prevent powdered excipients from clumping. It mainly includes a funnel 6, a guide cylinder 11, a spiral guide plate 12, a flow divider cone 13, an upper coarse screen 14, and a lower fine screen 15. It is fixed to the mixing tank 1 by a semi-circular block 10. The funnel 6 adopts a funnel-shaped structure, and the lower discharge port is sealed to the top of the guide cylinder 11 by a flange. The inner wall of the funnel 6 is provided with a polytetrafluoroethylene anti-stick coating to prevent powdered excipients from adhering and remaining during the feeding process.

[0023] The guide cylinder 11 is a cylindrical hollow structure made of food-grade 304 stainless steel. Its outer wall is welded and fixed to the inner wall of three sets of semi-circular blocks 10. The semi-circular blocks 10 are evenly distributed at 120°, and the outer wall of the semi-circular blocks 10 is fastened to the inner wall of the mixing tank 1 with bolts, so that the guide cylinder 11 is kept centered and fixed in the mixing tank 1, ensuring the stability of the pre-dispersion process. A spiral guide plate 12 is fixedly installed on the inner wall of the guide cylinder 11 from the top to the middle, with a spiral rise angle of 30°. Its upper end is flush with the discharge port of the funnel 6, which can guide the incoming material to form a spiral downward flow and prolong the residence time of the material in the guide cylinder 11.

[0024] A diversion cone 13 is fixedly installed in the middle of the guide cylinder 11. The diversion cone 13 has a conical structure with a cone apex angle of 60°. The top of the cone faces upward and is directly opposite the center of the discharge port of the funnel 6. The cone surface is polished. When the material enters from the funnel 6, it first contacts the cone surface of the diversion cone 13 and is evenly diverted to the spiral guide plate 12 on the inner wall of the guide cylinder 11, avoiding the accumulation of material and the formation of lumps. The upper coarse screen 14 and the lower fine screen 15 are both stainless steel woven mesh, which are horizontally fixed inside the guide cylinder 11. The upper coarse screen 14 is located below the diversion cone 13 and is used to initially break up the smaller lumps that have formed in the material. The lower fine screen 15 is located below the upper coarse screen 14 and realizes secondary fine dispersion of the material. The edges of both screens are fixed to the inner wall of the guide cylinder 11 with bolts through pressure strips, which facilitates disassembly and cleaning.

[0025] Example 2: Figure 1 , Figure 2 and Figure 4 As shown, the outer wall of the stirring rod in the stirring assembly 7 is equipped with two sets of circular ring frames 8, and the inner wall of the stirring tank 1 is provided with three sets of elastic scrapers 9. One end of each of the three sets of elastic scrapers 9 is equipped with two sets of connecting blocks 16, and the other ends of the six sets of connecting blocks 16 are respectively fixed to the outer wall of the two sets of circular ring frames 8.

[0026] The overall effect of this embodiment is that the mixing tank 1 is equipped with a mixing assembly 7, which is centered around a mixing rod. The mixing rod is a solid stainless steel rod with a length adapted to the height of the mixing tank 1. Its upper end is fixed to the lower end of the rotating column 5 by a key connection and rotates synchronously with the rotating column 5. Two sets of circular frames 8 are installed axially on the outer wall of the mixing rod. The circular frames 8 are welded from stainless steel round tubes and have a ring structure. Their diameter is slightly smaller than the inner diameter of the mixing tank 1 to ensure that they do not interfere with the tank when rotating. To address the issue of material adhering to the inner wall of the tank, three sets of elastic scrapers 9 are installed on the inner wall of the mixing tank 1. The elastic scrapers 9 are made of food-grade silicone and their length is adapted to the height of the mixing tank 1. Their scraper surfaces are specially treated to ensure a tight fit with the inner wall of the tank. The three sets of elastic scrapers 9 are evenly distributed at 120°. Two sets of connecting blocks 16 are bolted to one end of the inner side of each set of elastic scrapers 9. The connecting blocks 16 are made of stainless steel and have an L-shaped structure. The other ends of the six sets of connecting blocks 16 are welded and fixed to the outer walls of the two sets of circular frames 8, so that the elastic scrapers 9 rotate synchronously with the circular frames 8 and the stirring rod, achieving all-round scraping of the inner wall of the tank.

[0027] The method of use and working principle of this device: First, the speed and stirring time of the variable speed motor 3 are set by the control system 4. Then, the milk raw materials and powdered excipients (such as thickeners, sweeteners, etc.) are poured into the funnel 6 in proportion. After the materials enter the funnel 6, they flow into the guide cylinder 11 through the outlet. They first come into contact with the centrally located diversion cone 13 and are evenly distributed to the spiral guide plates 12 around the perimeter. Under the guidance of the spiral guide plates 12, a spiral downward flow is formed, and the materials are initially mixed in the process. Then, the materials pass through the upper coarse screen 14 and the lower fine screen 15 in sequence. Through the interception and dispersion of the screens, the initial agglomeration formed when the powdered excipients come into contact with the liquid raw materials is completely broken, and the pre-dispersion process is completed.

[0028] Finally, the pre-dispersed material enters the main mixing area of ​​the mixing tank 1. At this time, the variable speed motor 3 starts, driving the mixing component 7 to rotate via the rotating column 5. The mixing rod drives the two sets of circular frames 8 to rotate synchronously. The circular frames 8 mix the material through their own structure and drive the three sets of elastic scrapers 9 to rotate along the inner wall of the tank, scraping off the attached material in real time. During the mixing process, the speed of the variable speed motor 3 can be adjusted in real time by the control system 4 according to the mixing state of the material to ensure that materials at different viscosity stages can be fully mixed. After the mixing is completed, the variable speed motor 3 is turned off, and the discharge solenoid valve at the bottom of the tank is opened. The mixed material is discharged from the discharge port under the guidance of the bottom of the inverted conical tank, completing the entire anti-caking mixing process.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A yogurt anti-caking stirring device, comprising a stirring tank (1), characterized in that: The upper end of the mixing tank (1) is equipped with a support frame (2), the upper end of the support frame (2) is equipped with a variable speed motor (3), one end of the frame of the mixing tank (1) is equipped with a control system (4), the upper end of the mixing tank (1) is rotatably mounted with a rotating column (5), the upper end of the mixing tank (1) is rotatably mounted with a funnel (6), the lower end of the funnel (6) is equipped with a guide cylinder (11), the inner wall of the mixing tank (1) is equipped with a semi-circular block (10), the inner wall of the guide cylinder (11) is equipped with a spiral guide plate (12), the inside of the guide cylinder (11) and the middle part are fixedly mounted with a flow divider cone (13), the inside of the guide cylinder (11) is equipped with an upper coarse screen (14) and a lower fine screen (15).

2. The yogurt anti-caking stirring device according to claim 1, characterized in that: The outer wall of the guide cylinder (11) is fixed to the inner wall of the semicircular block (10), and the spiral guide plate (12) is located above the flow divider cone (13).

3. The yogurt anti-caking stirring device according to claim 2, characterized in that: The upper coarse screen (14) is located below the diversion cone (13), and the lower fine screen (15) is located below the upper coarse screen (14).

4. The yogurt anti-caking stirring device according to claim 1, characterized in that: The mixing tank (1) is equipped with a mixing assembly (7), and the upper end of the mixing rod in the mixing assembly (7) is fixed to the lower end of the rotating column (5).

5. The yogurt anti-caking stirring device according to claim 4, characterized in that: The upper end of the rotating column (5) is fixed to the output end of the variable speed motor (3), and the variable speed motor (3) is connected to the control system (4) via signal.

6. The yogurt anti-caking stirring device according to claim 4, characterized in that: The stirring assembly (7) has two sets of ring frames (8) installed on the outer wall of the stirring rod, and the stirring tank (1) has three sets of elastic scrapers (9) installed on the inner wall.

7. The yogurt anti-caking stirring device according to claim 6, characterized in that: Two sets of connecting blocks (16) are installed at one end of each of the three sets of elastic scrapers (9), and the other end of the six sets of connecting blocks (16) is fixed to the outer wall of the two sets of circular frames (8).

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