Three-dimensional mixing stirrer for adding vitamins and minerals into biscuits

Abstract

The utility model relates to the technical field of food raw material mixing equipment, and provides a three-dimensional mixing stirrer for adding vitamins and mineral substances into biscuits, the three-dimensional mixing stirrer comprises a main stirring barrel, the main stirring barrel is arranged in a multi-degree-of-freedom rotation mode in space, the main stirring barrel is provided with a main mixing cavity, and the main mixing cavity is provided with a first material inlet and a first material outlet; the auxiliary stirring barrel is arranged in the main mixing cavity, the auxiliary stirring barrel is provided with an auxiliary mixing cavity, the auxiliary mixing cavity is provided with a second material inlet, a communication port and a second material outlet, and the communication port and the second material outlet are both used for communicating the auxiliary mixing cavity with the main mixing cavity. By means of the technical scheme, the technical problem that in the prior art, additives added into powdery food raw materials are not evenly mixed is solved.

Description

Technical Field

[0001] The embodiments of this disclosure relate to the field of food ingredient mixing equipment technology, and more specifically, to a three-dimensional mixing mixer for adding vitamins and minerals to biscuits. Background Technology

[0002] With consumers' increasing demand for fortified food nutrition, biscuit production requires the precise addition of vitamins, minerals, and other trace elements to meet specific nutritional standards (such as fortifying infant biscuits with iron and zinc). However, existing mixing equipment has significant technical shortcomings when handling the mixing of flour and various additives. First, traditional two-dimensional mixing equipment (such as twin-helix mixers) can only achieve simple material stirring and cannot create a three-dimensional turbulent flow field. This results in materials with large density differences (such as calcium carbonate and flour) showing obvious stratification after standing for 30 minutes (the stratification rate reaches 45% when the density difference is >2g / cm³). Experimental data shows that when a company produces calcium-fortified biscuits, the standard deviation of calcium content reaches ±8%, and some products exceed the standard value by 30%. For example, hygroscopic ingredients such as vitamin C powder easily form clumps with a particle size >500μm during the mixing process, and the scraping structure of traditional equipment cannot dynamically remove the adhering substances on the cavity wall (the residual thickness reaches 0.5-2mm). When the ambient humidity is >60%, the mixing uniformity decreases by 23%, and electrostatic adsorption leads to a vitamin B12 loss rate of up to 15%. When magnesium stearate (angle of repose 35°) is mixed with flour (angle of repose 45°), local voids are created due to differences in flowability. Even after mixing with conventional equipment, 12%–18% of the material remains unmixed, resulting in a residue of 0.1%–0.3%, which fails to meet the stringent FSMA requirement of <10 ppm for allergen residue. Therefore, there is an urgent need for a three-dimensional mixing device that can simultaneously solve the problems of uniform mixing of multiple materials and prevent agglomeration, to meet the industrial production needs of fortified biscuits. Utility Model Content

[0003] To overcome the above-mentioned defects, embodiments of this disclosure provide a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, which solves the technical problem of uneven mixing of additives in powdered food ingredients in the prior art.

[0004] According to one aspect, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to cookies, comprising:

[0005] The main mixing tank is arranged to rotate freely in space, and the main mixing tank has a main mixing chamber, which has a first material inlet and a first material outlet;

[0006] An auxiliary mixing tank is disposed within the main mixing chamber. The auxiliary mixing tank has an auxiliary mixing chamber, which has a second material inlet, a connecting port, and a second material outlet. The connecting port and the second material outlet are both used to connect the auxiliary mixing chamber and the main mixing chamber.

[0007] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to cookies, which further includes:

[0008] A sliding plate is slidably disposed on the inner wall of the auxiliary mixing tank, and the sliding direction is parallel to the axis of the auxiliary mixing tank. The sliding plate is configured such that after the main mixing tank rotates, the second material inlet faces obliquely upward or obliquely downward, and the sliding plate blocks or unblocks the communication port under the action of gravity.

[0009] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, wherein the second material outlet is located at one end of the auxiliary mixing tank near the first material outlet, and further includes:

[0010] A screen is disposed inside the second material outlet.

[0011] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to cookies, which further includes:

[0012] A counterweight is disposed on the sliding plate.

[0013] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, wherein the inner wall of the auxiliary mixing tank has a first diameter-reducing guide surface on the side near the second material outlet.

[0014] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, wherein the main mixing hopper has a second narrowing guide surface on the side near the first material inlet, and the communication port faces the second narrowing guide surface.

[0015] For example, at least one embodiment of this disclosure provides a three-dimensional mixing machine for adding vitamins and minerals to biscuits, wherein there are several communication ports arranged circumferentially on the side wall of the auxiliary mixing tank, and several sliding plates and counterweights are provided corresponding to the communication ports.

[0016] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, wherein one end of the second material inlet of the auxiliary mixing tank has a connecting portion for threaded connection with the outer wall of the first material inlet.

[0017] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to cookies, which further includes:

[0018] Organism;

[0019] A first rotating shaft and a second rotating shaft are rotatably mounted on the machine body, and the rotation axes of the first rotating shaft and the second rotating shaft are parallel.

[0020] The first fixing member is hinged to one end of the first rotating shaft;

[0021] The second fixing member is hinged to one end of the second rotating shaft, and the cylinder walls at both ends of the main mixing tank are respectively hinged to the first fixing member and the second fixing member.

[0022] For example, at least one embodiment of this disclosure provides a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, wherein both the first fixing member and the second fixing member have arc-shaped portions, and the two ends of the arc-shaped portions of the first fixing member and the second fixing member are respectively hinged to the two side walls of the main mixing tank.

[0023] The beneficial effects of the embodiments disclosed herein are as follows:

[0024] In this disclosure, the multi-degree-of-freedom rotation of the main mixing tank, especially the combination of axial, radial, and eccentric rotation, can create a complex three-dimensional flow field within the main mixing chamber. This flow field allows materials with significant density differences, such as calcium carbonate and flour, to no longer be limited to simple material stirring, but rather to be mixed omnidirectionally in space, effectively avoiding stratification caused by static placement and significantly improving mixing uniformity. For additives that are prone to agglomeration or clumping, the auxiliary mixing tank first performs preliminary mixing with a small amount of the main material, reducing the possibility of additive agglomeration. Subsequently, the preliminary mixture enters the main mixing chamber for further mixing, further ensuring the overall uniformity of the material mixture and solving the problem that traditional equipment cannot effectively mix such additives. The auxiliary mixing tank is designed for additives that are prone to moisture absorption and clumping, such as vitamin C powder. Before being added to the main mixing chamber, it is pre-mixed with a portion of the main material in the auxiliary mixing chamber, reducing the likelihood of clumping due to moisture absorption when the additive exists alone. The optional assembly design of the auxiliary mixing tank allows the equipment to flexibly adjust the mixing method according to the characteristics of different additives. For additives that do not require special treatment, they can be directly mixed using the main mixing tank; for additives that are prone to accumulating or clumping, an auxiliary mixing tank is installed to meet the diverse mixing needs in biscuit production. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to one embodiment of the present disclosure;

[0027] Figure 2 for Figure 1 A schematic diagram of the internal structure of a three-dimensional mixing mixer for adding vitamins and minerals to cookies is shown in the embodiment.

[0028] Figure 3 for Figure 2 A partially enlarged structural diagram of section A in the middle;

[0029] Figure 4 for Figure 2 A partially enlarged structural diagram of section B in the middle;

[0030] Figure 5 for Figure 2 A magnified schematic diagram of part C in the middle.

[0031] In the diagram: Main mixing tank - 1, Main mixing chamber - 101, First material inlet - 102, First material outlet - 103, Auxiliary mixing tank - 2, Auxiliary mixing chamber - 201, Second material inlet - 202, Connecting port - 203, Second material outlet - 204, Sliding plate - 3, Screen - 4, Counterweight - 5, First diameter reduction guide surface - 205, Second diameter reduction guide surface - 104, Connecting part - 206, Machine body - 6, First rotating shaft - 7, Second rotating shaft - 8, First fixing part - 9, Second fixing part - 10, Arc-shaped part - 901. Detailed Implementation

[0032] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0033] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0035] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] like Figures 1-5 The diagram illustrates a three-dimensional mixing mixer for adding vitamins and minerals to biscuits, according to one embodiment of this disclosure. The main mixing tank 1 achieves multi-degree-of-freedom rotation in space via a mechanism consisting of multiple rotating shafts, a motor, and transmission components. This allows the main mixing tank 1 to rotate axially, radially, and eccentrically, creating a complex three-dimensional flow field in the main mixing chamber 101, aiding in thorough mixing of materials. The main mixing chamber 101, located inside the main mixing tank 1, is the primary site for material mixing. A first material inlet 102 is conveniently located on the side of the main mixing tank 1 for adding main materials such as flour. A first material outlet 103 is located at a lower position on the side of the main mixing tank 1 and is equipped with a valve for precise discharge after mixing. The inner wall of the main mixing chamber 101 is treated to be very smooth, preventing materials from easily sticking and facilitating smoother flow in the three-dimensional flow field. For additives that tend to accumulate or clump after addition, an auxiliary mixing tank 2 is installed inside the main mixing tank 1. It is connected to the main mixing tank 1 via a specific connection structure; when the main mixing tank 1 moves, the auxiliary mixing tank 2 moves accordingly. The auxiliary mixing chamber 201 is located inside the auxiliary mixing tank 2 and is used to pre-mix specific additives. The second material inlet 202 is located on the side of the auxiliary mixing tank 2 for easy addition of additives. The connecting port 203 is on the wall of the auxiliary mixing tank 2; when the main mixing tank 1 rotates, a small portion of the main material can enter the auxiliary mixing chamber 201 through the connecting port 203 to mix with the additives. The second material outlet 204 is located at a suitable position on the wall of the auxiliary mixing tank 2, for example, near the bottom; the initial mixture of additives and main material exits from here and enters the main mixing chamber 101 for further mixing.

[0039] In summary, the multi-degree-of-freedom rotation of the main mixing tank 1, especially the combination of axial, radial, and eccentric rotation, creates a complex three-dimensional flow field within the main mixing chamber 101. This flow field allows materials with significant density differences, such as calcium carbonate and flour, to be mixed in all directions in space, rather than being confined to planar mixing. This effectively avoids stratification caused by static placement and significantly improves mixing uniformity. For additives that are prone to agglomeration or clumping, the auxiliary mixing tank 2 first performs preliminary mixing with a small amount of the main material, reducing the possibility of additive agglomeration. The initial mixture then enters the main mixing chamber 101 for further mixing, further ensuring the overall uniformity of the material mixture and solving the problem of traditional equipment being unable to effectively mix such additives. The auxiliary mixing tank 2 is designed for additives that are easily hygroscopic and prone to clumping, such as vitamin C powder. Before being added to the main mixing chamber 101, it is first pre-mixed with a portion of the main material in the auxiliary mixing chamber 201, reducing the likelihood of clumping due to moisture absorption when the additive exists alone. The optional assembly design of the auxiliary mixing tank 2 allows the equipment to flexibly adjust the mixing method according to the characteristics of different additives. For additives that do not require special treatment, they can be directly mixed using the main mixing tank 1; for additives that are prone to accumulating or clumping, an auxiliary mixing tank 2 is installed to meet the diverse mixing needs in biscuit production.

[0040] In some examples, the sliding plate 3 is an arc-shaped plate component whose shape adapts to the inner wall of the auxiliary mixing tank 2. Its material is typically chosen to have a low coefficient of friction with the inner wall of the auxiliary mixing tank 2 and a certain strength, such as a smooth stainless steel plate. The edges of the sliding plate 3 fit tightly against the inner wall of the auxiliary mixing tank 2, while still ensuring smooth sliding. To facilitate sliding, a groove structure is provided between the sliding plate 3 and the inner wall of the auxiliary mixing tank 2 to reduce sliding resistance. The length of the groove covers the required sliding stroke of the sliding plate 3. The two side edges of the sliding plate 3 are embedded in the groove, forming a sliding fit, ensuring that the sliding plate 3 can slide smoothly along the axial direction of the auxiliary mixing tank 2. Before feeding materials into the equipment, check that the sliding plate 3 is in its initial position, i.e., completely blocking the connection port 203, to ensure that no material accidentally enters the auxiliary mixing chamber 201 during the initial startup of the equipment. Simultaneously, the main material is added to the main mixing chamber 101 through the first material inlet 102, and the additive is added to the auxiliary mixing chamber 201 through the second material inlet 202. The three-dimensional mixer is started, and the main mixing tank 1 begins to rotate with multiple degrees of freedom. When the main mixing tank 1 rotates to the point where the end containing the connecting port 203 tilts downwards, the sliding plate 3 slides axially, removing the obstruction of the connecting port 203. At this time, the main material in the main mixing chamber 101 begins to enter the auxiliary mixing chamber 201 through the connecting port 203 under the action of gravity. As the main mixing tank 1 continues to rotate, more main material enters the auxiliary mixing chamber 201, where it begins to mix initially with the additives under the rotation of the auxiliary mixing tank 2. When the main mixing tank 1 swings to the point where the end containing the connecting port 203 is raised, the sliding plate 3 slides, blocking the connecting port 203 again, stopping the main material from entering the auxiliary mixing chamber 201. The material that has been initially mixed in the auxiliary mixing chamber 201 is discharged through the second material outlet 204 and enters the main mixing chamber 101 for further mixing. Controlling the entry of the main material into the auxiliary mixing chamber 201 during the rotation of the main mixing tank 1 ensures the initial mixing of the additives and the main material. When the connecting port 203 is open, an appropriate amount of the main material enters the auxiliary mixing chamber 201 and mixes with the additives, avoiding the problem of uneven mixing that may be caused by a large amount of main material entering at once. This staged mixing method helps to improve the mixing uniformity of the material in the auxiliary mixing chamber 201, thereby improving the effect of the entire mixing process and ensuring the quality stability of the final product. The sliding plate 3 closes in time when the connecting port 203 is raised, effectively preventing the excessive entry of the main material and reducing the possibility of material remaining in the auxiliary mixing chamber 201 due to excessive material and failing to mix fully.

[0041] In some examples, the screen 4 is a mesh structure woven from metal wire or high-strength plastic wire. The mesh size is determined based on actual production needs, generally chosen to effectively filter out potential material lumps and impurities without obstructing the passage of normal mixed materials. For example, for common vitamins and minerals added in biscuit production, the mesh size might be set between 0.1 and 1 mm. The shape of the screen 4 is adapted to the internal contour of the second material outlet 204, typically circular or square, ensuring complete coverage of the channel cross-section of the second material outlet 204. Its edges are bolted tightly to the inner wall of the second material outlet 204, ensuring that the screen 4 does not shift or loosen during material passage. This also facilitates the disassembly and cleaning of the screen 4.

[0042] Under the rotation of the auxiliary mixing tank 2, the additive and the main material come into full contact and are initially mixed in the auxiliary mixing chamber 201. After the initial mixing is completed, the material flows to the second material outlet 204. When passing through the second material outlet 204, the material must pass through the screen 4. The screen 4 screens the material, intercepting lumps, larger particle agglomerates, and any impurities that may be mixed in. Only materials that meet the particle size requirements and are relatively uniformly mixed can pass through the screen 4 and enter the main mixing chamber 101. The material screened by the screen 4 enters the main mixing chamber 101 and, together with other materials in the main mixing chamber, undergoes more thorough three-dimensional mixing under the continuous multi-degree-of-freedom rotation of the main mixing tank 1. After mixing is completed, the valve of the first material outlet 103 is opened, and the mixed material is discharged from the mixer. This helps to improve the initial mixing quality of the material in the main mixing chamber, making the subsequent three-dimensional mixing process more efficient and reducing the situation where the overall mixing effect is poor due to uneven mixing of local materials. The second material outlet 204 is located close to the first material outlet 103, and combined with the screening effect of the screen 4, the flow of material in the equipment is more rational. The screened material can quickly integrate into the area near the discharge end of the main mixing chamber 101, preparing for final mixing and discharge, thus improving the continuity and efficiency of the entire mixing process. The screen 4 effectively intercepts lumps and impurities in the material. During the process of adding vitamins and minerals in biscuit production, these lumps and impurities can affect the taste, appearance, and uniform distribution of nutrients in the biscuits. Filtration by the screen 4 ensures higher quality material entering the final product, improving the quality stability and consistency of the biscuit products.

[0043] In some examples, the counterweight 5 is fixed to the sliding plate 3 by welding. Before the equipment is started, the sliding plate 3 is in the position blocking the connection port 203, and the counterweight 5 is stationary and fixed to the sliding plate 3. The main material has been added to the main mixing chamber 101 through the first material inlet 102, and the additive has been added to the auxiliary mixing chamber 201 through the second material inlet 202. The three-dimensional mixer is started, and the main mixing tank 1 begins to rotate in multiple degrees of freedom, driving the auxiliary mixing tank 2 to move together. When the main mixing tank 1 rotates, causing the auxiliary mixing tank 2 to tilt, and the end where the connection port 203 is located tilts downward, the counterweight 5, under the action of gravity, pulls the sliding plate 3 to slide along the slide rail on the inner wall of the auxiliary mixing tank 2, thus removing the obstruction of the connection port 203. This automatic mechanical control method reduces the cost and maintenance difficulty of the equipment, while reducing the possible failure points due to the complex control system and improving the reliability of equipment operation. The counterweight 5 is tightly connected to the sliding plate 3, enabling it to precisely follow the tilt angle changes of the main mixing tank 1 and the auxiliary mixing tank 2, and timely control the opening and closing of the connecting port 203. No matter how complex the multi-degree-of-freedom rotation of the main mixing tank 1 is, the counterweight 5 can accurately drive the sliding plate 3 at the appropriate time based on the change in the direction of gravity, ensuring that the main material enters the auxiliary mixing chamber 201 at the right moment, achieving precise control of the mixing process. This ensures a relatively stable amount of main material entering the auxiliary mixing chamber 201 each time, helping to improve the mixing uniformity of the material in the auxiliary mixing chamber, thereby enhancing the overall mixing effect.

[0044] In some examples, the first narrowing guide surface 205 is located on the inner wall of the auxiliary mixing tank 2 near the second material outlet 204, and is an inwardly tapering curved structure. This guide surface gradually transitions from the normal diameter region of the inner wall of the auxiliary mixing tank 2 to a smaller diameter region near the second material outlet 204. Its shape is similar to a portion of a cone, but is optimized according to the specific shape and size of the auxiliary mixing tank 2 and the position of the second material outlet 204. The surface of the first narrowing guide surface 205 is finely machined to be very smooth, reducing resistance to material flow. The first narrowing guide surface 205 is integrally formed with the inner wall of the auxiliary mixing tank 2, ensuring its structural strength and stability, and preventing cracks or loosening during material mixing that would affect the guiding effect. Under the rotation of the auxiliary mixing tank 2, the main material and additives are continuously mixed in the auxiliary mixing chamber 201. As mixing proceeds, the material gradually moves towards the second material outlet 204. At this time, the first narrowing guide surface 205 begins to function, guiding the material towards the second material outlet 204. Due to the reduced diameter design of the guide surface, the material is gradually gathered during the flow, making the material flow more concentrated and facilitating smooth passage through the second material outlet 204. After initial mixing and guided by the first reduced diameter guide surface 205, the material is discharged from the second material outlet 204 and enters the main mixing chamber 101 for further mixing. Afterward, the main mixing tank 1 continues to rotate, ensuring thorough mixing of the material within the main mixing chamber 101. Once mixing is complete, the valve of the first material outlet 103 is opened, discharging the mixed material from the mixer. The design of the first reduced diameter guide surface 205 clearly defines the flow direction of the material within the auxiliary mixing chamber 201, effectively guiding the material to the second material outlet 204. This avoids disordered flow of material within the auxiliary mixing chamber 201, reduces material accumulation in corners or areas far from the outlet, and improves the efficiency of material discharge from the auxiliary mixing chamber 204. The reduced diameter design causes the material to gradually gather as it flows towards the second material outlet 204, forming a more concentrated material flow. The concentrated material flow facilitates passage through the second material outlet 204, reducing the likelihood of blockages at the outlet and ensuring smooth material flow, thus improving the continuity of the entire mixing process. Because the first narrowing guide surface 205 guides the orderly flow of material, it allows for more thorough mixing within the auxiliary mixing chamber 201. As the material flows towards the outlet, it continuously collides and mixes with other materials, further enhancing the uniformity of the mixture. This is crucial for ensuring the uniform distribution of vitamins and minerals in the final product, thereby improving the quality stability of the biscuit product.

[0045] In some examples, the second narrowing guide surface 104 is located on the side of the main mixing tank 1 near the first material inlet 102, and is an inwardly contracting curved surface. This curved surface gradually transitions from the normal diameter area of ​​the inner wall of the main mixing tank 1 to a smaller diameter area near the first material inlet 102. The connecting port 203 faces the second narrowing guide surface 104, and their relative positions are precisely planned. This layout allows the main material in the main mixing tank 1 to flow smoothly to the connecting port 203 under the guidance of the second narrowing guide surface 104 during movement, and then enter the auxiliary mixing chamber 201. The second narrowing guide surface 104 plays a key role in the flow of the main material. Due to its inwardly contracting shape, the main material is gradually gathered at the narrower end of the guide surface, that is, near the connecting port 203. As the main mixing tank 1 rotates to a specific angle, the connecting port 203 corresponds to the main material gathering area, and the main material, guided by the guide surface, smoothly enters the auxiliary mixing chamber 201 through the connecting port 203, where it undergoes preliminary mixing with the additives already present. The unique constriction shape of the second constriction guide surface 104 effectively gathers the relatively dispersed main material within the main mixing tank 1. Compared to the random flow of the main material within the main mixing chamber without this guide surface, the guide surface directs the main material towards the connecting port 203, significantly improving the efficiency of the main material reaching the connecting port 203. This allows more main material to enter the auxiliary mixing chamber 201 through the connecting port 203 within a unit of time. Furthermore, the position of the second constriction guide surface 104 ensures that when the first material outlet 102 of the main mixing tank 1 is downward, the main material is piled up at the corresponding position. At this time, the connecting port 203 is approximately blocked by external material. As the tank rotates, the main material can enter the auxiliary mixing chamber 201. After entering, the main material continues to close the connecting port 203 as the main mixing tank 1 rotates, enhancing the initial mixing effect of the main material and additives. This ensures the stability and reliability of the main material entering the auxiliary mixing chamber 201, contributing to a more stable and efficient mixing operation.

[0046] In some examples, multiple circumferentially arranged connecting ports 203 allow the main material to enter the auxiliary mixing chamber 201 from different positions in the auxiliary mixing tank 2, avoiding the problem of excessively high local concentrations or uneven mixing that may occur when the material enters from a single position. The main material coming into contact with the additive from multiple directions helps to form a more uniform material distribution within the auxiliary mixing chamber, improving the uniformity of the initial mixing. By setting multiple connecting ports 203, sliding plates 3, and counterweights 5, the position and timing of the main material entering the auxiliary mixing chamber 201 can be flexibly adjusted according to different material characteristics and mixing requirements. For example, for additives that are prone to clumping, a specific connecting port 203 can be selected to open preferentially, allowing the main material to enter from that position to better disperse the additive; for materials with different flowability, the mixing process can also be optimized by controlling the opening and closing sequence and timing of the connecting ports 203, improving the equipment's adaptability to diverse mixing tasks.

[0047] In some examples, the auxiliary mixing tank 2 has a connecting part 206 at one end of the second material inlet 202. The connecting part 206 is annular, and its inner diameter is adapted to the second material inlet 202 to ensure smooth material passage. The inner wall of the connecting part 206 has an internal thread that matches the outer wall of the first material inlet 102. When installing the auxiliary mixing tank 2, the connecting part 206 of the auxiliary mixing tank 2 is aligned with the first material inlet 102. By rotating the auxiliary mixing tank 2, the internal thread of the connecting part 206 gradually engages with the external thread of the outer wall of the first material inlet 102 until the two are tightly connected. Using a threaded connection, the installer only needs to align the connecting part 206 of the auxiliary mixing tank 2 with the first material inlet 102 and then achieve a tight connection through a simple rotation. Compared with other complex connection methods, such as welding or using a large number of bolts and nuts for fixing, the threaded connection greatly simplifies the installation process of the auxiliary mixing tank 2, saving installation time and labor costs.

[0048] In some examples, the first fixing member 9 and the second fixing member 10 have similar structures, and their shapes are designed according to the connection requirements with the main mixing tank 1 and the rotating shaft. One end of the first fixing member 9 has a hinge hole, which is hinged to one end of the first rotating shaft 7 via a pin, allowing the first fixing member 9 to rotate around the axis of the first rotating shaft 7. The other end also has a hinge hole for hinged to one end of the main mixing tank 1. The second fixing member 10 is connected to the second rotating shaft 8 and the other end of the main mixing tank 1 in the same way as the first fixing member 9. When the motor is started, the motor drives the first rotating shaft 7 and the second rotating shaft 8 to rotate synchronously through the transmission device. The rotation of the first rotating shaft 7 and the second rotating shaft 8 is transmitted to the main mixing tank 1 through the first fixing member 9 and the second fixing member 10, causing the main mixing tank 1 to rotate around the axis of the first rotating shaft 7 and the second rotating shaft 8. Since the two ends of the main mixing tank 1 are connected to the first fixing member 9 and the second fixing member 10 through hinges, the main mixing tank 1 will swing during rotation, thereby achieving multi-degree-of-freedom rotation. During the rotation of the main mixing tank 1, the main material in the main mixing chamber 101 is continuously tumbling and mixing under the action of centrifugal force, gravity, etc. If an auxiliary mixing tank 2 is provided, the main material will enter the auxiliary mixing chamber 201 through the connecting port 203 to be initially mixed with the additives, and then return to the main mixing chamber 101 for further mixing.

[0049] In some examples, during the equipment assembly stage, the first rotating shaft 7 and the second rotating shaft 8 are first mounted on the machine body 6 via bearings to ensure smooth rotation and coaxiality. Then, the first fixing member 9 and the second fixing member 10 are hinged to one end of the first rotating shaft 7 and the second rotating shaft 8, respectively. Next, the hinge seats on both sides of the main mixing tank 1 are hinged to the two ends of the arc-shaped portion 901 of the first fixing member 9 and the second fixing member 10, completing the main assembly of the equipment. Afterwards, the main material is added to the main mixing chamber 101 through the first material inlet 102, and the additive is added to the auxiliary mixing chamber 201 (if an auxiliary mixing tank 2 is provided) through the second material inlet 202. The flexibility of each hinge point and the overall stability of the equipment are then checked. The hinge design of the arc-shaped portion 901 and the main mixing tank 1 adds a unique degree of freedom of movement to the main mixing tank 1. Based on the rotation of the main mixing tank 1 driven by the first rotating shaft 7 and the second rotating shaft 8, the main mixing tank 1 can swing around the hinge point of the arc-shaped portion 901, making the motion trajectory of the main mixing tank 1 more complex and diverse. This complex motion allows the materials in the main mixing chamber 101 to be stirred in different directions and angles, greatly increasing the mixing opportunities between materials and significantly improving the uniformity of mixing.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits, characterized in that, include: The main mixing tank (1) is arranged to rotate freely in space. The main mixing tank (1) has a main mixing chamber (101) with a first material inlet (102) and a first material outlet (103). An auxiliary mixing tank (2) is disposed in the main mixing chamber (101). The auxiliary mixing tank (2) has an auxiliary mixing chamber (201). The auxiliary mixing chamber (201) has a second material inlet (202), a connecting port (203), and a second material outlet (204). The connecting port (203) and the second material outlet (204) are both used to connect the auxiliary mixing chamber (201) and the main mixing chamber (101).

2. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 1, characterized in that, Also includes: The sliding plate (3) is slidably disposed on the inner wall of the auxiliary mixing tank (2), and the sliding direction is parallel to the axis of the auxiliary mixing tank (2). The sliding plate (3) is configured such that after the main mixing tank (1) rotates, the second material inlet (202) faces obliquely upward or obliquely downward, and the sliding plate (3) blocks or unblocks the communication port under the action of gravity.

3. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 1, characterized in that, The second material outlet (204) is located at one end of the auxiliary mixing tank (2) near the first material outlet (103), and further includes: A screen (4) is disposed inside the second material outlet (204).

4. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 2, characterized in that, Also includes: Counterweight (5) is disposed on the sliding plate (3).

5. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 1, characterized in that, The inner wall of the auxiliary mixing tank (2) has a first diameter reduction guide surface (205) on the side near the second material outlet (204).

6. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 1, characterized in that, The main mixing tank (1) has a second narrowing guide surface (104) on the side near the first material inlet (102), and the connecting port (203) faces the second narrowing guide surface (104).

7. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 4, characterized in that, There are several connecting ports (203), which are arranged circumferentially on the side wall of the auxiliary stirring tank (2). The sliding plate (3) and the counterweight (5) are each provided with several corresponding to the connecting ports (203).

8. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 1, characterized in that, The auxiliary mixing tank (2) has a connecting part (206) at one end of the second material inlet (202), which is used to be threaded to the outer wall of the first material inlet (102).

9. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 1, characterized in that, Also includes: Body (6); A first rotating shaft (7) and a second rotating shaft (8) are rotatably mounted on the body (6), and the rotation axes of the first rotating shaft (7) and the second rotating shaft (8) are parallel. The first fixing member (9) is hinged to one end of the first rotating shaft (7); The second fixing member (10) is hinged to one end of the second rotating shaft (8), and the cylinder walls at both ends of the main mixing tank (1) are respectively hinged to the first fixing member (9) and the second fixing member (10).

10. A three-dimensional mixing mixer for adding vitamins and minerals to biscuits according to claim 9, characterized in that, Both the first fixing member (9) and the second fixing member (10) have an arc-shaped portion (901), and the two ends of the arc-shaped portion (901) corresponding to the first fixing member (9) and the second fixing member (10) are respectively hinged to the two side walls of the main mixing tank (1).

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