Biscuit stuffing stirrer and mixing equipment
By using a layered, multi-functional paddle design and a dual-shaft rotating mixing assembly, the problem of uneven mixing of materials at the bottom of traditional mixers is solved, achieving all-round efficient mixing and temperature control, thus improving the mixing quality and production efficiency of biscuit fillings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JIASHILI FOOD GRP CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional vertical single-shaft mixers often result in uneven mixing of materials at the bottom when mixing cookie fillings, leading to accumulation and difficulty in achieving all-around mixing. This is especially true for components with large density differences or poor flowability, resulting in prolonged mixing time and poor performance.
It adopts a layered multi-functional impeller design and a dual-shaft rotary stirring assembly, including a main impeller unit group, a secondary impeller unit group and a propulsion impeller unit group. Through the multi-layer composite stirring structure, it achieves all-round and multi-level stirring. Combined with flexible drive control and temperature adjustment functions, it can adapt to the stirring needs of different viscosities and components.
It significantly improves mixing uniformity, shortens mixing time, and enhances production efficiency. Through temperature control and the design of the discharge mechanism, it ensures efficient mixing and stable conveying of materials, avoiding mixing dead zones and wall sticking.
Smart Images
Figure CN224180693U_ABST
Abstract
Description
A biscuit filling mixer and mixing equipment Technical Field
[0001] This utility model relates to the field of biscuit production technology, and in particular to a biscuit filling mixer and mixing equipment. Background Technology
[0002] In the production of foods such as biscuits and pastries, the preparation of fillings is a crucial step. For solid fillings, such as mixtures of various powdery, granular, and small-lump materials, or fillings that require the crushing and mixing of larger materials to a certain extent, the uniformity of mixing, the physical state of the materials, and the processing efficiency directly affect the quality and taste of the final product.
[0003] Traditional vertical single-shaft mixers, especially when the mixing shaft is driven from the top, often have a weak mixing zone at the bottom. Material tends to accumulate at the bottom of the tank or be trapped in a mixing dead zone, making it difficult for the impeller to effectively reach and agitate it, resulting in uneven mixing. Even with bottom discharge, the uniformity of the discharged material may be affected by insufficient mixing at the bottom.
[0004] While many mixing devices can achieve circular motion of materials, they struggle to create effective vertical tumbling and overall axial circulation for solid materials, especially those with significant density differences or poor flowability. This often leads to stratification, prolonged mixing time, and difficulty in guaranteeing proper mixing results.
[0005] Therefore, it is necessary to improve the existing biscuit filling mixing technology to overcome its shortcomings. Summary of the Invention
[0006] To overcome the problems existing in the related technologies, one of the objectives of this utility model is to provide a biscuit filling mixer. This biscuit filling mixer overcomes the problems of insufficient mixing of bottom materials and easy stratification in the prior art by using a layered multi-functional paddle design and a dual-shaft rotating mixing assembly.
[0007] A biscuit filling mixer includes a vertical mixing tank and a mixing assembly;
[0008] The vertical mixing tank includes a cylindrical inner wall and a bottom plate, the cylindrical inner wall and the bottom plate forming a mixing chamber for carrying and mixing solid materials;
[0009] The stirring assembly includes:
[0010] A first stirring shaft and a second stirring shaft are both vertically arranged along the central axis of the mixing tank and extend upward from the bottom plate. The first stirring shaft is sleeved outside the second stirring shaft.
[0011] A multi-layered composite stirring blade structure is provided in the stirring chamber. The multi-layered composite stirring blade structure includes a main blade unit group, a secondary blade unit group, and a propulsion blade unit group arranged sequentially along the direction away from the bottom plate.
[0012] The main blade unit group includes a plurality of first blades extending from the first stirring shaft to the cylindrical inner wall. Each first blade includes an extension rod and a mixing scraper. One end of the extension rod is connected to the first stirring shaft, and the other end is connected to the mixing scraper. The mixing scraper is inclined toward the first stirring shaft in a direction close to the bottom plate.
[0013] The auxiliary blade unit group includes at least two second blades, one end of which is connected to the second stirring shaft, and the other end extends toward the cylindrical inner wall;
[0014] The propulsion blade unit assembly includes at least one push rod, which is connected to the second stirring shaft and extends toward the cylindrical inner wall and away from the bottom plate.
[0015] Furthermore, the vertical mixing tank also includes a tank shell fitted around the cylindrical inner wall, the tank shell and the cylindrical inner wall forming a temperature-regulating sealed cavity, the temperature-regulating sealed cavity being filled with a temperature-regulating medium.
[0016] Furthermore, the outer shell of the tank is provided with two media inlets and outlets, one of which is located near the top of the outer shell and the other is located near the bottom of the outer shell, with the two media inlets and outlets being far apart from each other.
[0017] Furthermore, the second blade is a plate-shaped blade, and the height of the second blade is located above the mixing scraper of the main blade unit group.
[0018] Furthermore, the plate-shaped blades are inclined relative to the plane of the base plate.
[0019] Furthermore, the biscuit filling mixer also includes a drive base, on which a drive mechanism is provided. The lower ends of the first stirring shaft and the lower ends of the second stirring shaft both pass through the base plate and are connected to the drive mechanism.
[0020] Furthermore, the drive mechanism includes a gear transmission assembly and at least one drive motor. The gear transmission assembly is connected to the first stirring shaft and the second stirring shaft, and the at least one drive motor drives the first stirring shaft and the second stirring shaft through the gear transmission assembly.
[0021] Furthermore, the bottom side of the vertical mixing tank is provided with at least one discharge mechanism, which includes a discharge channel arranged tangentially along the inner wall of the cylinder and a discharge valve arranged near the inner wall of the cylinder. The discharge channel is selectively connected to the mixing chamber through the discharge valve.
[0022] The second objective of this utility model is to provide a biscuit filling mixing device, including the aforementioned biscuit filling mixer. The biscuit filling mixing device also includes a screw pump disposed in the discharge channel, which is used to pump solid materials from the discharge channel.
[0023] Furthermore, the discharge channel includes a discharge buffer chamber and a discharge pipe. One side of the discharge buffer chamber is connected to the vertical mixing tank, and the other side is connected to one end of the discharge pipe. The other end of the discharge pipe is connected to the downstream equipment for making biscuit fillings. The discharge valve and the screw pump are located in the discharge buffer chamber.
[0024] The beneficial effects of this utility model are as follows:
[0025] This utility model provides a biscuit filling mixer. Through a nested structure of a first and second stirring shaft, and a multi-layered composite design of a main impeller unit group, an auxiliary impeller unit group, and a pusher impeller unit group, it achieves comprehensive and multi-layered mixing of materials within the mixing chamber. The mixing scraper of the main impeller unit group tilts downwards and inwards, effectively scraping up and pushing the bottom material towards the center, promoting circulation and mixing of the bottom material, while simultaneously scraping the bottom and lower tank wall. The auxiliary impeller unit group provides radial and axial shearing and mixing in the middle. The pusher impeller unit group lifts and tumbles the material upwards, promoting the exchange of materials between upper and lower layers, effectively eliminating mixing dead zones and improving mixing uniformity. The synergistic effect of the multi-layered composite impellers increases the contact surface and movement complexity of the materials, enhancing shearing, convection, and diffusion effects, thereby significantly shortening mixing time and improving production efficiency. The mixing scraper design of the main impeller also functions as a wall scraper, effectively preventing material from adhering to the bottom and lower tank wall. The dual shafts can be controlled independently or in conjunction, and the multi-layered blade structure allows for adjustment of speed and working mode for biscuit fillings of different viscosities and compositions, making it highly adaptable. Attached Figure Description
[0026] Figure 1 is a top view of the vertical mixing tank provided in this application;
[0027] Figure 2 is an overall schematic diagram of the biscuit filling mixer provided in this application;
[0028] Figure 3 is a cross-sectional schematic diagram of the biscuit filling mixer provided in this application.
[0029] Figure label:
[0030] 100. Vertical mixing tank body; 110. Cylindrical inner wall; 120. Bottom plate; 130. Tank outer shell; 140. Medium inlet / outlet; 150. Discharge mechanism;
[0031] 200. Stirring assembly;
[0032] 210. Main blade unit assembly; 211. Extension rod; 212. Mixing scraper;
[0033] 220. Secondary blade unit group; 221. Second blade;
[0034] 230. Push lever. Detailed Implementation
[0035] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0036] Example 1
[0037] As shown in Figures 1 to 3, this embodiment provides a biscuit filling mixer and a biscuit filling mixing device including the mixer.
[0038] The biscuit filling mixer mainly includes a vertical mixing tank 100 and a mixing component 200 located inside the tank.
[0039] The vertical mixing tank 100 includes a tank body with a cylindrical inner wall 110 and a bottom plate 120.
[0040] The cylindrical inner wall 110 and the bottom plate 120 together form a mixing chamber, which is used to hold and mix solid or semi-solid materials such as biscuit fillings. The container is typically made of food-grade stainless steel, such as SUS304 or SUS316L, to ensure hygiene, safety, and ease of cleaning.
[0041] The stirring assembly 200 is the core component for achieving efficient mixing, and includes a first stirring shaft and a second stirring shaft. Both stirring shafts are vertically arranged along the central axis of the mixing tank and extend stably upward from the base plate 120 to a predetermined height inside the mixing chamber.
[0042] The first stirring shaft is a hollow tubular structure and is fitted over the second stirring shaft. This means that the second stirring shaft passes through the central hole of the first stirring shaft. This coaxial fitting design allows the two stirring shafts to rotate independently or in conjunction.
[0043] The mixing assembly 200 also includes a multi-layer composite mixing blade structure, mounted on the first and second mixing shafts and rotating with them. Its design aims to achieve all-round, multi-layer mixing of materials. A main blade unit group 210, an auxiliary blade unit group 220, and a pusher blade unit group are arranged sequentially along the direction away from the bottom plate 120 (i.e., from the bottom of the mixing chamber upwards).
[0044] The main impeller unit 210 is fixedly connected to the outer wall of the first stirring shaft. It includes six evenly arranged first impellers. Each first impeller consists of a radially extending extension rod 211 and a mixing scraper 212 connected to the end of the extension rod 211. One end of the extension rod 211 is firmly connected to the first stirring shaft, and the other end is connected to the mixing scraper 212, such that the mixing scraper 212 extends from the first stirring shaft towards the cylindrical inner wall 110.
[0045] The mixing scraper 212 is key to achieving efficient mixing and wall scraping of the bottom material. Its shape and installation angle are designed to be inclined in a direction close to the bottom plate 120 (i.e., downwards) and simultaneously towards the first stirring shaft (i.e., inwards). This special inclined design allows the main impeller to effectively scrape up the material at the bottom of the mixing chamber when rotating, generating a downward, center-push and converging effect. Simultaneously, its outer edge can closely adhere to or be very close to the bottom plate 120 and the lower part of the cylindrical inner wall 110, acting as a scraper to prevent material deposition and adhesion to the walls in these areas and promoting upward tumbling and circulation of the material.
[0046] The auxiliary blade unit assembly 220 is fixedly connected to the second stirring shaft. It includes two symmetrically arranged second blades 221. One end of each second blade 221 is firmly connected to the second stirring shaft, and the other end extends radially toward the cylindrical inner wall 110.
[0047] The second blade 221 is preferably a plate-shaped blade. Its height is positioned above the mixing scraper 212 of the main blade unit group 210. To enhance its mixing effect, the plate-shaped blade can be inclined at a certain angle relative to the plane of the bottom plate 120 (for example, the inclination angle can be selected between 10-60 degrees, preferably 15-45 degrees). This inclination can generate stronger radial dispersion, axial shearing, and tumbling effects on the material, helping to break up any material clumps that may form and enhancing the penetration and mixing between different components.
[0048] The propeller unit assembly is fixedly connected to the second stirring shaft and located above the auxiliary propeller unit assembly 220, i.e., in the upper-middle region of the stirring chamber. It includes at least one push rod 230. The push rod 230 has a unique structural design. It first extends radially from the second stirring shaft towards the cylindrical inner wall 110, and then bends and extends in a direction away from the bottom plate 120 (i.e., upwards). This L-shaped or spiral-ascending structural design allows the push rod 230 to effectively break the static friction between the materials in the upper-middle section when rotating, causing the powder in the upper-middle section to flow and allowing the lighter powder to flow into the main material. This greatly enhances the overall axial circulation of the material and the exchange between the upper and lower layers, ensuring that the material at the top is also fully and uniformly mixed, and avoiding material stratification.
[0049] The mixer also includes a drive base located below the vertical mixing tank 100.
[0050] A drive mechanism is provided on the drive base. The lower ends of the first and second stirring shafts pass through the base plate 120 (ensuring a seal through a sealing assembly) and are reliably connected to the drive mechanism.
[0051] The drive mechanism includes a gear transmission assembly and at least one drive motor (e.g., a main drive motor can be used to drive the inner and outer shafts separately via a complex gear transmission assembly, or two independent drive motors can be used to drive the first and second stirring shafts respectively). The gear transmission assembly is drively connected to the first and second stirring shafts. The drive motor (such as a variable frequency motor or a servo motor) drives the first and second stirring shafts to rotate via the gear transmission assembly. Through a control system (such as a PLC with a variable frequency drive / servo driver), the first and second stirring shafts can rotate in the same direction, in opposite directions, or at the same speed or different speeds (i.e., differential speed). This flexible control capability allows the mixer to adapt to the physical properties of different types of biscuit fillings and the process requirements of different mixing stages (such as initial rapid dispersion, intermediate homogenization, and later degassing or gentle mixing), thereby achieving optimal mixing results.
[0052] This embodiment also provides a biscuit filling mixing device including the biscuit filling mixer described in detail above, and the mixing device further includes a discharge mechanism 150 and a pumping unit.
[0053] The discharge mechanism 150 is provided on the side bottom of the vertical mixing tank 100, for example, on the cylindrical inner wall 110 near the bottom plate 120, with two symmetrically arranged discharge mechanisms 150.
[0054] The discharge mechanism 150 includes a discharge channel tangentially arranged along the cylindrical inner wall 110. This tangential design facilitates the smooth discharge of materials under the action of centrifugal force and gravity, reducing accumulation and residue at the outlet.
[0055] A discharge valve (e.g., a sanitary ball valve, butterfly valve, or plunger valve) is located near the inner cylindrical wall 110 (i.e., at the entrance of the discharge channel). The discharge channel is selectively connected to the mixing chamber via the discharge valve. After mixing is complete, the discharge valve is opened, and the filling is discharged from the mixing chamber.
[0056] Pumping unit:
[0057] A screw pump is installed in the discharge channel, particularly downstream of the discharge valve. Screw pumps are well-suited for pumping well-mixed biscuit fillings because they can stably and continuously transport high-viscosity fluids, even those containing solid particles, with relatively low shearing action.
[0058] To optimize pumping performance, the discharge channel can be further designed to include a discharge buffer chamber and a discharge pipe. One side of the discharge buffer chamber is connected to the mixing chamber of the vertical mixing tank 100 via a discharge valve, and the other side is connected to one end of the discharge pipe. The other end of the discharge pipe is used to connect to downstream production equipment, such as a biscuit filling forming machine, a filling machine, or a temporary storage tank. Both the discharge valve and the screw pump can be located within the discharge buffer chamber, or the screw pump can be located immediately downstream of the discharge valve at the inlet of the discharge buffer chamber. The design of the discharge buffer chamber helps to provide a stable feeding condition for the screw pump, preventing pump cavitation or pulsation due to uneven material supply.
[0059] The working process of the mixer and mixing equipment in this embodiment is as follows:
[0060] After various biscuit filling ingredients (such as powdered sugar, oil, milk powder, flavoring, water, etc.) are added to the mixing chamber of the mixer according to the formula, the drive mechanism is activated. The first mixing shaft drives the main impeller unit group 210 to rotate, and its downward and inward inclined mixing scraper 212 scrapes, pushes, and lifts the bottom material, forming a strong bottom circulation flow and preventing sticking to the wall. At the same time or according to a preset program, the second mixing shaft drives the auxiliary impeller unit group 220 and the pusher impeller unit group to rotate (which can be in the same direction, opposite direction, at the same speed, or at a different speed than the first shaft). The plate-shaped blades of the auxiliary impeller unit group 220 efficiently disperse and shear the material radially in the middle and lower area, breaking up clumps. The pusher rod 230 of the pusher impeller unit group turns over the middle and upper layer of material, promoting a large axial circulation of the entire material. This multi-dimensional and multi-level synergistic mixing action ensures that the material reaches a highly uniform mixing state in a short time, without any dead zones. After mixing is complete, open the discharge valve and start the screw pump. The high-viscosity biscuit filling can then be pumped smoothly and continuously to the downstream process.
[0061] The biscuit filling mixer and mixing equipment provided in this embodiment achieves all-round, efficient and uniform mixing of biscuit fillings through a unique dual-shaft sleeve and multi-layer composite mixing blade system, including six downward and inward inclined main blade mixing scrapers 212, two symmetrical plate-shaped auxiliary blades in the middle and lower part, and an L-shaped push rod 230 at the top. This effectively eliminates mixing dead corners and significantly shortens the production cycle. Its flexible and controllable drive mechanism can adapt to diverse filling characteristics and process requirements. Combined with two tangential discharge mechanisms 150 symmetrically arranged on the side bottom and a downstream screw pump, it ensures smooth discharge and stable delivery of high-viscosity fillings, thereby improving overall production efficiency, automation level, equipment operation reliability, and hygiene and safety standards.
[0062] Example 2
[0063] Referring to Figures 1 to 3, this embodiment provides another biscuit filling mixer and a biscuit filling mixing device including the mixer, which mainly adds a temperature control function based on embodiment 1.
[0064] The basic structure of this biscuit filling mixer includes a vertical mixing tank 100 (cylindrical inner wall 110, bottom plate 120, mixing chamber), a mixing assembly 200 (first mixing shaft, second mixing shaft, multi-layer composite mixing blade structure and its specific main blade unit group 210, auxiliary blade unit group 220, and push blade unit group structure and connection method), and a drive part (drive base, drive mechanism, gear transmission assembly, drive motor), all of which are the same as or similar to the biscuit filling mixer described in Example 1.
[0065] Its distinguishing and new features lie in the temperature control structure of the vertical mixing tank 100:
[0066] The vertical mixing tank 100 also includes a tank shell 130 that is fitted over the cylindrical inner wall 110.
[0067] A closed jacketed cavity is formed between the outer shell 130 of the tank and the cylindrical inner wall 110. The jacketed cavity is designed to be filled with a temperature regulating medium, such as hot water, steam (for heating or keeping the filling warm, such as melting chocolate or butter or maintaining a specific process temperature) or cooling water, or chilled brine (for cooling the filling, such as preventing frictional overheating or reaching a specific discharge temperature).
[0068] To achieve effective circulation and heat exchange of the temperature-regulating medium, the outer shell 130 of the tank is provided with a medium inlet and a medium outlet. Preferably, the medium inlet is located near the top of the outer shell 130, while the medium outlet is located near the bottom of the outer shell 130, and the medium inlet should be spatially away from the medium outlet (e.g., located at different positions around the circumference of the tank or diagonally). This "top-in, bottom-out" arrangement (for hot media such as steam) or "bottom-in, top-out" arrangement (for cold media to achieve better countercurrent heat exchange) helps to form a uniform temperature distribution within the jacketed cavity, thereby enabling efficient and uniform temperature control of the material in the stirring chamber.
[0069] Cookie filling mixing equipment
[0070] The biscuit filling mixing equipment of this embodiment is characterized by including the biscuit filling mixer with temperature control function described in detail above, and the mixing equipment also includes a discharge mechanism 150 and a pumping unit similar to those in Embodiment 1.
[0071] A discharge mechanism 150 is provided on the bottom side of the vertical mixing tank 100, including a discharge channel arranged tangentially along the cylindrical inner wall 110 and a discharge valve arranged near the cylindrical inner wall 110, for selectively connecting the mixing chamber.
[0072] A screw pump is installed in the discharge channel to pump out solid (high viscosity) materials that have been stirred and may have undergone temperature control.
[0073] The working process of the mixer and mixing equipment in this embodiment is as follows:
[0074] The working process is similar to that of Example 1, except that the temperature of the biscuit filling in the mixing chamber can be precisely controlled by introducing a corresponding temperature regulating medium into the jacketed cavity during or before mixing. For example, when mixing a formula containing solid fats, hot water or steam can be introduced first for pre-melting and heating mixing; when mixing materials that are prone to heating up due to friction, cooling water can be introduced for cooling mixing. The remaining mixing, discharging, and pumping processes are the same as described in Example 1.
[0075] This embodiment, while inheriting all the advantages of embodiment 1 such as efficient and uniform mixing, smooth discharge, and flexible control, adds a jacketed cavity and a precise media circulation system, enabling the biscuit filling mixer and mixing equipment to have temperature control capabilities. This not only allows for precise temperature control of the filling during mixing to ensure the quality of temperature-sensitive products (such as chocolate filling), but also broadens the equipment's process applicability to accommodate more formulas with strict processing temperature requirements. Furthermore, by eliminating the influence of ambient temperature fluctuations, it improves process stability and product repeatability, making it a more complete biscuit filling solution that meets higher production standards.
[0076] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0077] Furthermore, it should be noted that the use of terms such as "first" and "second" is merely for ease of distinction, and unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.
[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A biscuit filling mixer, characterized in that, The system includes a vertical mixing tank (100) and a mixing assembly (200); the vertical mixing tank (100) includes a cylindrical inner wall (110) and a bottom plate (120), the cylindrical inner wall (110) and the bottom plate (120) forming a mixing chamber for carrying and mixing materials; the mixing assembly (200) includes: a first mixing shaft and a second mixing shaft, both of which are vertically arranged along the central axis of the mixing tank and extend upward from the bottom plate (120), the first mixing shaft being sleeved outside the second mixing shaft; a multi-layer composite mixing blade structure disposed in the mixing chamber, the multi-layer composite mixing blade structure including a main blade unit group (210), a secondary blade unit group (220) and a pusher blade unit group arranged sequentially along the direction away from the bottom plate (120); the main blade unit group (210) includes a composite blade unit group (210) and a pusher blade unit group (220). A plurality of first blades extending from the first stirring shaft to the cylindrical inner wall (110) are provided. Each first blade includes an extension rod (211) and a mixing scraper (212). One end of the extension rod (211) is connected to the first stirring shaft, and the other end is connected to the mixing scraper (212). The mixing scraper (212) is inclined toward the first stirring shaft in a direction close to the bottom plate (120). The auxiliary blade unit group (220) includes at least two second blades (221). One end of the second blade (221) is connected to the second stirring shaft, and the other end extends toward the cylindrical inner wall (110). The push blade unit group includes at least one push rod (230). The push rod (230) is connected to the second stirring shaft and extends toward the cylindrical inner wall (110) and toward the bottom plate (120).
2. The biscuit filling mixer according to claim 1, characterized in that: The vertical mixing tank (100) also includes a tank shell (130) sleeved outside the cylindrical inner wall (110). The tank shell (130) and the cylindrical inner wall (110) form a temperature-regulating closed cavity, which is used to fill a temperature-regulating medium.
3. The biscuit filling mixer according to claim 2, characterized in that: The outer shell (130) of the tank is provided with two medium inlet / outlet (140). One medium inlet / outlet (140) is located near the top of the outer shell (130), and the other medium inlet / outlet (140) is located near the bottom of the outer shell (130). The two medium inlet / outlet (140) are far apart from each other.
4. The biscuit filling mixer according to claim 1, characterized in that: The second blade (221) is a plate-shaped blade, and the setting height of the second blade (221) is above the mixing scraper (212) of the main blade unit group (210).
5. The biscuit filling mixer according to claim 4, characterized in that: The plate-shaped blades are inclined relative to the plane of the base plate (120).
6. The biscuit filling mixer according to claim 1, characterized in that: The biscuit filling mixer also includes a drive base, on which a drive mechanism is provided. The lower ends of the first stirring shaft and the lower ends of the second stirring shaft both pass through the base plate (120) and are connected to the drive mechanism.
7. The biscuit filling mixer according to claim 6, characterized in that: The drive mechanism includes a gear transmission assembly and at least one drive motor. The gear transmission assembly is connected to the first stirring shaft and the second stirring shaft, and the at least one drive motor drives the first stirring shaft and the second stirring shaft through the gear transmission assembly.
8. The biscuit filling mixer according to claim 7, characterized in that: The vertical mixing tank (100) has at least one discharge mechanism (150) on its side bottom. The discharge mechanism (150) includes a discharge channel arranged tangentially along the cylindrical inner wall (110) and a discharge valve arranged near the cylindrical inner wall (110). The discharge channel is selectively connected to the mixing chamber through the discharge valve.
9. A biscuit filling mixing device, characterized in that, The biscuit filling mixer as described in claim 8 further includes a screw pump disposed in the discharge channel, the screw pump being used to pump solid materials from the discharge channel.
10. The biscuit filling mixing equipment according to claim 9, characterized in that: The discharge channel includes a discharge buffer chamber and a discharge pipe. One side of the discharge buffer chamber is connected to the vertical mixing tank (100), and the other side is connected to one end of the discharge pipe. The other end of the discharge pipe is connected to the downstream equipment for making biscuit filling. The discharge valve and the screw pump are located in the discharge buffer chamber.