Stirring blade assembly with dispersing disc

Abstract

The utility model discloses a stirring knife subassembly with dispersing disc, including central gear, center spindle, mounting panel, at least two side edge gear, at least two side edge rotating shaft, dispersing disc, stirring knife, central gear drives center spindle to rotate around Z axle, and the mounting panel is installed on the upper end of center spindle to rotate around Z axle with center spindle, and the stirring knife is installed on center spindle, two side edge gears are located on the mounting panel, and are symmetrically engaged transmission connection on the both sides of central gear, and the side edge rotating shaft passes through the mounting panel, and the side edge gear drives corresponding side edge rotating shaft to rotate around Z axle, and the dispersing disc is installed on the side edge rotating shaft, and the dispersing disc is staggered and arranged with the stirring knife up and down, and the dispersing disc revolves around center spindle with the mounting panel, simultaneously, the dispersing disc rotates around the side edge rotating shaft. Like this, effectively promote mixing efficiency and evenness, eliminate mixing dead angle, improve dispersing, emulsification, disaggregation effect, and its compact structure, transmission efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of mixing devices, and in particular to a mixing blade assembly that also functions as a dispersing disc. Background Technology

[0002] For some mixing devices that only have a single stirring effect, the mixing effect is not ideal. Therefore, the industry has provided a variety of improvement solutions, such as: 1. CN208302590U discloses a two-stage agitator for emulsifiers, including a mixing tank, a servo motor, and a mixing mechanism. The servo motor is located at the center of the top of the mixing tank. Multiple sets of mixing mechanisms are arranged inside the mixing tank. The top of the set of mixing mechanisms closest to the servo motor is connected to the servo motor. The mixing mechanism includes a mixing shaft, a mixing rod, a receiving cavity, a pin, and a cutter. The mixing shaft has a mixing rod with a receiving cavity. A pin is rotatably connected to the receiving cavity, and a cutter is mounted on the pin. One end of the cutter is located in the receiving cavity. In use, the servo motor rotates forward, driving the mixing shaft to rotate forward, which in turn drives the mixing rod and its attachments to rotate forward. The entire mixing mechanism forms a swastika shape on the plane, performing mixing operations to achieve more thorough mixing and improve the uniformity. The servo motor reverses, driving the stirring shaft to reverse, which in turn drives the stirring rod to reverse. Under the centrifugal force of high-speed rotation, the cutter opens, and the entire stirring mechanism forms a cross shape on the plane. The cutter performs shearing and dispersing operations, and while stirring, it shears and disperses the chemical raw materials to achieve a homogenization effect and realize two-stage processing.

[0003] 2. CN118698387A discloses a stirring device for water-based ink processing, comprising: an inner tank and an electric rotating shaft equipped with stirring blades, wherein the electric rotating shaft is used to drive multiple stirring blades to stir the ink in the inner tank, a lower scraper is provided at the lower end of the electric rotating shaft, a lifting base plate is provided on the lower inner wall of the inner tank, and an installation groove is provided at the lower part of the electric rotating shaft, wherein a scraper position adjustment device is provided in the installation groove; the scraper position adjustment device comprises: a pushing device and a mounting plate, wherein the pushing device... The mounting plate is slidably connected to the mounting groove. It is disposed in the mounting groove by a first elastic element. A side scraper is provided on one side of the mounting plate. The pushing device is connected to the other side of the mounting plate and is in contact with the lifting base plate. The pushing device is used to push the side scraper to abut against the inner wall of the inner tub. The lifting base plate is used to drive the pushing device to push the side scraper to move horizontally. When the lifting base plate abuts against the lower scraper, the side scraper abuts against the inner side wall of the inner tub.

[0004] However, it is still difficult to meet the requirements of higher mixing uniformity and mixing efficiency, especially for some high-viscosity materials, chemical materials that need to be dispersed and are difficult to mix. Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a stirring blade assembly that also functions as a dispersing disc. This assembly effectively improves mixing efficiency and uniformity, eliminates mixing dead zones, and enhances dispersion, emulsification, and deagglomeration effects. Furthermore, it has a compact structure and high transmission efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A stirring blade assembly that also functions as a dispersing disc includes a central gear, a central spindle, a mounting plate, at least two side gears, at least two side shafts, a dispersing disc, and a stirring blade. The central gear drives the central spindle to rotate around the Z-axis. The mounting plate is installed on the upper end of the central spindle to rotate around the Z-axis along with the central spindle. The stirring blade is installed on the central spindle. Two side gears are located on the mounting plate and are symmetrically meshed and connected to the central gear on both sides. The side shafts pass through the mounting plate, and the side gears drive the corresponding side shafts to rotate around the Z-axis. The dispersing disc is installed on the side shafts, and the dispersing disc and the stirring blade are staggered vertically. The dispersing disc revolves around the central spindle along with the mounting plate, and simultaneously rotates on its own axis around the side shafts.

[0007] As a preferred embodiment, there are two or more sets of both the dispersing disc and the stirring blade, and the dispersing disc and the stirring blade are staggered one by one in the vertical direction.

[0008] As a preferred embodiment, the stirring blades extend radially, and the two sets of stirring blades are arranged in a cross-shaped staggered arrangement; the side rotating shaft and the dispersing disk are located in the staggered and recessed area of ​​the two sets of stirring blades, such that: from a top view angle, the dispersing disk and the stirring blades are arranged with circumferential spacing.

[0009] As a preferred embodiment, the lower end of the central spindle is also connected to a scraping blade.

[0010] As a preferred embodiment, the scraping knife includes a bottom horizontal scraping knife and a side arc-shaped scraping knife, wherein the bottom horizontal scraping knife extends laterally; and two sets of side arc-shaped scraping knives are provided and respectively connected to the two lateral ends of the bottom horizontal scraping knife.

[0011] As a preferred embodiment, the scraping knife further includes a side vertical scraper, which extends upward from the upper end of the side arc-shaped scraping knife.

[0012] As a preferred embodiment, the upper end of the vertical scraper on the side is connected to the outer periphery of the mounting plate via an auxiliary bracket.

[0013] As a preferred embodiment, an iron ring is welded to the outer periphery of the mounting plate, and the auxiliary frame is connected to the opposite side of the iron ring.

[0014] As a preferred embodiment, the upper end of the auxiliary frame is detachably connected to the iron ring, and the lower end of the auxiliary frame is detachably connected to the upper end of the side vertical scraper.

[0015] As a preferred embodiment, the auxiliary frame is positioned so that the upper end of the vertical scraper on the side is close to the side pivot.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves setting the stirring blade on the central main shaft and setting the dispersion disk on the side rotating shaft, with the side rotating shaft and the central main shaft sharing the same transmission power. The stirring blade and the dispersion disk greatly improve the mixing efficiency and uniformity. The dispersion disk, which revolves on the side and rotates on its own axis, provides local high-intensity shearing and dispersion. Since the dispersion disk and the stirring blade are staggered vertically, a strong three-dimensional turbulence can be formed, resulting in more thorough mixing, which helps to shorten the mixing time and improve the mixing uniformity. It is suitable for general chemical liquids and for some high-viscosity materials, as well as chemical materials that require dispersion and are difficult to mix.

[0017] Secondly, the mixing blades on the central spindle are arranged in a cross shape, which allows the mixing blades to provide a wide range of powerful mixing and eliminate the axial "columnar dead zone". At the same time, the compound motion of the side dispersion discs helps to eliminate dead zones on the side walls and corners.

[0018] Furthermore, a single drive source (drive center gear) enables all complex movements. Gear meshing transmission has high efficiency and reliability. The structure is more compact, lower in cost, and simpler to maintain than multi-motor drive or complex transmission systems.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a top view (including the mixing tank) of a stirring blade assembly that also has a dispersing disc, according to one embodiment of this utility model. Figure 2 This is a front view of a stirring blade assembly that also functions as a dispersing disc, according to one embodiment of this utility model. Figure 3 This is a front view of the stirring blade assembly that also functions as a dispersing disc, according to Embodiment 2 of this utility model. Figure 4 This is a top view (including the mixing tank) of the stirring blade assembly that also has a dispersing disc, according to Embodiment 3 of this utility model. Figure 5 This is a physical image of a stirring blade assembly that also functions as a dispersing disc, according to one embodiment of this utility model. Detailed Implementation

[0021] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of various embodiments of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0023] A mixing blade assembly that also functions as a dispersing disc extends into a mixing tank 200 and can be widely used in industries such as chemical, food, pharmaceutical, and coatings to meet the needs of high-efficiency mixing. It is a compact mixing blade assembly with high mixing efficiency, good uniformity, strong dispersing ability, and the ability to effectively eliminate mixing dead zones. The mixing blade assembly with a dispersing disc includes a central gear 101, a central spindle 102, a mounting plate 103, at least two side gears 104, at least two side shafts 105, a dispersing disc 106, and a mixing blade 107.

[0024] The central gear 101 drives the central spindle 102 to rotate around the Z-axis. The mounting plate 103 is mounted on the upper end of the central spindle 102 to rotate around the Z-axis along with the central spindle 102. The stirring blade 107 is mounted on the central spindle 102. The central spindle 102 is located at the center of the mounting plate 103. The two side gears 104 are located on the mounting plate 103 and are symmetrically meshed with the central gear 101 on both sides. The symmetrical meshing ensures the synchronicity and balance of the movement on both sides and reduces vibration. The side rotating shaft 105 passes through the mounting plate 103, and the side gear 104 drives the corresponding side rotating shaft 105 to rotate around the Z-axis. The dispersing disk 106 is mounted on the side rotating shaft 105, and the dispersing disk 106 is vertically offset from the stirring blade 107. The dispersing disk 106 revolves around the central main shaft 102 along with the mounting plate 103, and simultaneously rotates on its own axis around the side rotating shaft 105. Figure 1As shown, the rotation direction of the central gear 101 is R0, the rotation direction of the central spindle 102 and the mounting plate 103 is R1, and the rotation direction of the two side gears 104 is R2. If the motor driving the central gear is designed to be a reversible motor, when reversing, the above rotation directions will switch to the opposite direction accordingly.

[0025] Typically, two or more sets of the dispersing disc 106 and the stirring blade 107 are provided, and they are staggered one by one in the vertical direction. In actual design and manufacturing, the dispersing disc 106 and the stirring blade 107 are designed to be detachably mounted on the corresponding central spindle 102 and side rotating shaft 105, providing adaptability to the design. The number of stirring blade layers, angle, dispersing disc type, rotation speed, etc., can be flexibly adjusted to adapt to chemical materials with different viscosities and different mixing requirements (mixing, dispersing, emulsifying, etc.).

[0026] The stirring blades 107 extend radially, and each set of stirring blades 107 includes two laterally extending blades. The inner end of each blade is adapted to the central spindle 102 via a semi-circular mounting part. The two ears at the arc-shaped ends of the two mounting parts are then overlapped and locked (screw-locked). This fixes the two blades at the corresponding height of the central spindle 102. Therefore, the installation height of each set of stirring blades 107 can be flexibly set, and they are detachable for easy cleaning, inspection, maintenance, and replacement. Simultaneously, the two sets of stirring blades 107 are arranged in a cross-shaped staggered pattern. This vertical spacing expands the vertical stirring range, and the cross-shaped staggered arrangement avoids interference between upper and lower blades, increasing the radial stirring coverage area and intensity, effectively eliminating the "columnar dead zone" in the stirring. The side rotating shaft 105 and the dispersing disk 106 are located within the staggered, recessed area of ​​the two sets of stirring blades 107, such that, from a top-view perspective, the dispersing disk 106 and the stirring blades 107 are arranged at circumferential intervals. Figure 1 As shown, two side rotating shafts 105 are provided, and the dispersing discs 106 mounted on them are respectively located in two opposite quadrant regions separated by the two sets of stirring blades 107, and as... Figure 4As shown, four side rotating shafts 105 are provided, and the dispersion discs 106 mounted on them are respectively located in the four opposite quadrants separated by the two sets of stirring blades 107. Considering the force balance of the device and the stirring force and uniformity in the stirring tank 200, it is generally not advisable to set three side rotating shafts 105. In the case of using three side rotating shafts 105, the stirring blades need to be arranged in three evenly divided shapes, with a 120° arc angle between adjacent two. The three-part structure can be formed on one stirring hole or it can be composed of three stirring blades. Preferably, one stirring blade is designed as a mounting ring and three blades integrally connected to the outer circumference of the mounting ring. The three blades are evenly arranged along the outer circumference of the mounting ring. In this way, more than two stirring blades can be arranged vertically according to the length of the central main shaft. Three side gears need to be set, which are set above the clamping clearance area of ​​the three blades, which is equivalent to being evenly arranged along the circumference of the central gear. In the industry, a single dispersing disc is suitable for high-shear, particle-dispersing, or emulsifying applications. In this patent, it is used in combination with the mixing blade assembly. The dispersing disc and the central mixing blade do not overlap vertically and are staggered circumferentially. This avoids interference between them, ensuring that each performs at its best. Furthermore, it cleverly creates a three-dimensional mixing flow field, allowing the mixing flow in the central region of the mixing blade and the high-shear flow (revolution + rotation) of the dispersing disc in the side regions to be staggered vertically yet still mutually influential. This generates more complex and intense three-dimensional turbulence and material exchange, significantly improving overall mixing efficiency, uniformity, and dispersion effect. This is difficult to achieve with traditional single-agitator or coaxial multi-layer mixing technologies.

[0027] To scrape the inner surface of the mixing tank 200 and prevent material from adhering to the walls, a scraper blade 108 is also connected to the lower end of the central main shaft 102. For example... Figure 2 The scraping blade 108 shown includes a bottom horizontal scraping blade 1081 and a side arc-shaped scraping blade 1082. The bottom horizontal scraping blade 1081 extends laterally; two sets of the side arc-shaped scraping blades 1082 are provided and respectively connected to the two lateral ends of the bottom horizontal scraping blade 1081. Figure 3As shown, for mixing tanks with a large depth, especially when liquid tends to adhere to the walls, the scraper 108 also includes a vertical side scraper 1083, which extends upward from the upper end of the curved side scraper 1082. The upper end of the vertical side scraper 1083 is connected to the outer periphery of the mounting plate 103 via an auxiliary frame 109. Since the mounting plate rotates around the Z-axis with the central spindle 102, power is provided to the upper end of the vertical side scraper 1083, resulting in a more stable and powerful scraping force and a better scraping effect. An iron ring 1031 is welded to the outer periphery of the mounting plate 103, and the auxiliary frame 109 is connected to the opposite side of the iron ring. The upper end of the auxiliary frame 109 is detachably connected to the iron ring, and the lower end of the auxiliary frame 109 is detachably connected to the upper end of the vertical side scraper 1083. The auxiliary frame 109 is positioned relative to the upper end of the side vertical scraper 1083, approaching the side pivot 105. It should be noted that the bottom horizontal scraper 1081, the side arc-shaped scraper 1082, and the side vertical scraper 1083 define their overall shape and function. The bottom horizontal scraper 1081 is used to scrape the horizontal area of ​​the bottom wall of the mixing tank 200; the side arc-shaped scraper 1082 is used to scrape the arc-shaped connecting wall between the horizontal area of ​​the bottom wall and the vertical area of ​​the side wall of the mixing tank 200; and the side vertical scraper 1083 is used to scrape the vertical area of ​​the side wall of the mixing tank 200. Each of these three scraper components includes a mounting frame and several elastic scraper assemblies mounted along the mounting frame. The mounting frames for each component are arranged in the following order: horizontally extending, arc-shaped extending, and vertically extending. The flexible scraper assembly is a mature technology that is readily available on the market. The scraper can float flexibly relative to the mounting bracket. The scraper is made of silicone or slightly hard plastic, and its scraping edge is designed with a bevel.

[0028] The key design feature of this invention lies in its placement of the stirring blades on the central spindle and the dispersion disc on a side rotating shaft, with both shafts sharing the same power transmission. This significantly improves mixing efficiency and uniformity. The side-rotating dispersion disc provides localized high-intensity shearing and dispersion. The staggered arrangement of the dispersion disc and stirring blades creates strong three-dimensional turbulence, resulting in more thorough mixing, shorter mixing time, and improved uniformity. This design is suitable for general chemical liquids, as well as some high-viscosity materials, and difficult-to-mix chemical materials requiring dispersion. Secondly, the cross-shaped staggered arrangement of the stirring blades on the central spindle provides wide-range, powerful mixing, eliminating axial "columnar dead zones." Simultaneously, the combined motion of the side dispersion disc helps eliminate dead zones on the side walls and in corners. Finally, a single drive source (driving the central gear) enables all complex movements. The gear meshing transmission offers high efficiency and reliability, and the structure is more compact, lower in cost, and simpler to maintain than multi-motor drives or complex transmission systems.

[0029] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A stirring blade assembly that also functions as a dispersing disc, characterized in that: It includes a central gear, a central spindle, a mounting plate, at least two side gears, at least two side shafts, a dispersing disc, and a stirring blade; The central gear drives the central spindle to rotate around the Z-axis. The mounting plate is installed on the upper end of the central spindle to rotate around the Z-axis along with the central spindle. The stirring blade is installed on the central spindle. Two side gears are located on the mounting plate and are symmetrically meshed and connected to the central gear on both sides. The side shafts pass through the mounting plate, and the side gears drive the corresponding side shafts to rotate around the Z-axis. The dispersing disc is installed on the side shafts, and the dispersing disc and the stirring blade are staggered vertically. The dispersing disc revolves around the central spindle along with the mounting plate, and simultaneously rotates on its own axis around the side shafts.

2. The stirring blade assembly that also functions as a dispersing disc according to claim 1, characterized in that: There are two or more sets of the dispersing disc and the stirring blade, and the dispersing disc and the stirring blade are staggered one by one in the vertical direction.

3. The stirring blade assembly that also functions as a dispersing disc according to claim 2, characterized in that: The stirring blades extend radially, and the two sets of stirring blades are arranged in a cross shape and staggered. The side rotating shaft and the dispersing disk are located in the staggered and recessed area of ​​the two sets of stirring blades, so that: in the top view, the dispersing disk and the stirring blades are arranged with circumferential spacing.

4. The stirring blade assembly that also functions as a dispersing disc according to claim 1, characterized in that: The lower end of the central spindle is also connected to a scraping blade.

5. The stirring blade assembly that also functions as a dispersing disc according to claim 4, characterized in that: The scraping knife includes a bottom horizontal scraping knife and a side arc-shaped scraping knife. The bottom horizontal scraping knife extends laterally. There are two sets of side arc-shaped scraping knives, which are respectively connected to the two ends of the bottom horizontal scraping knife.

6. The stirring blade assembly that also functions as a dispersing disc according to claim 5, characterized in that: The scraping knife also includes a side vertical scraper, which extends upward from the upper end of the side arc-shaped scraping knife.

7. The stirring blade assembly that also functions as a dispersing disc according to claim 6, characterized in that: The upper end of the vertical scraper on the side is connected to the outer periphery of the mounting plate via an auxiliary bracket.

8. The stirring blade assembly that also functions as a dispersing disc according to claim 7, characterized in that: An iron ring is welded to the outer periphery of the mounting plate, and the auxiliary frame is connected to the opposite side of the iron ring.

9. The stirring blade assembly that also functions as a dispersing disc according to claim 8, characterized in that: The upper end of the auxiliary frame is detachably connected to the iron ring, and the lower end of the auxiliary frame is detachably connected to the upper end of the side vertical scraper.

10. The stirring blade assembly with a dispersing disc according to claim 7, 8, or 9, characterized in that: The auxiliary frame is positioned so that the upper end of the vertical scraper on the side faces the side pivot.

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