Double-shaft paddle stirring mechanism of zero-gravity mixer

Abstract

The utility model relates to a double-shaft paddle stirring mechanism of a zero-gravity mixing machine, which belongs to the field of mixing machines and comprises a mixing machine box, a bidirectional stirring mechanism is arranged in the mixing machine box, and the bidirectional stirring mechanism comprises a rotating motor fixedly mounted on the right side of the mixing machine box; the first rotating shaft is fixedly mounted on the left side of the rotating motor; and the driving gear is fixedly mounted on the outer side of the first rotating shaft. According to the double-shaft paddle stirring mechanism of the zero-gravity mixer, stirring paddles on the outer sides of the first rotating shaft and the second rotating shaft can be driven to rotate in opposite directions, the mixing effect of the device can be greatly improved through bidirectional stirring, and limiting pins can be driven to be separated from the outer sides of the stirring paddles through the action of pull rings, movable rods and movable plates; the stirring blades are not inserted and fixed any more, at the moment, the stirring blades can be directly removed from the outer sides of the first rotating shaft and the second rotating shaft and can be detached, stirring blades with other lengths can be replaced conveniently, and effective stirring of different materials is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a dual-shaft paddle stirring mechanism for a zero-gravity mixer. Background Technology

[0002] A zero-gravity mixer is a mixing device that mixes multiple different materials uniformly. A zero-gravity mixer includes a frame and a pair of rotating shafts. A mixing cavity is opened in the frame. The pair of rotating shafts rotate in opposite directions at the same speed. Multiple stirring paddles are fixedly connected to the rotating shafts. The rotation of the rotating shafts drives the stirring paddles to rotate, tumbling and scattering multiple materials at the same time. The materials experience instantaneous weightlessness in the spatial flow layer and mix into each other's areas to achieve uniform mixing. Commonly used mixers are divided into four categories: gas and low-viscosity liquid mixers, medium and high-viscosity liquid and paste mixers, and powder and granular solid material mixing machines.

[0003] The zero-gravity mixer also includes a flying knife assembly, which includes a drive motor, a rotating shaft, and blades. The rotating shaft is fixedly connected to the output shaft of the drive motor. Several blades are provided and fixedly connected to the rotating shaft. Traditional mixers usually rely on the rotation of a single mixing paddle for mixing. This method has low mixing efficiency. When the material is being mixed, the mixing paddle always rotates in one direction, which can easily cause the material to centrifuge. Moreover, existing paddles are generally fixedly installed on the rotating shaft, and the size of the paddles cannot be changed, making it inconvenient to mix and stir different types of materials. Therefore, this application proposes another technical solution to address this problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a dual-shaft paddle stirring mechanism for a zero-gravity mixer. It offers advantages such as convenient bidirectional rotational stirring, quick assembly and disassembly of the paddles, and the ability to replace them with different sizes for more efficient stirring. This solves the problems of traditional mixers that typically rely on a single rotating mixing paddle, which results in low mixing efficiency. Furthermore, the mixing paddle always rotates in one direction during material mixing, which can easily cause centrifugal forces in the materials. Moreover, existing paddles are generally fixedly installed on the shaft, and the size of the paddles cannot be changed, making it inconvenient to mix different types of materials.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-shaft paddle stirring mechanism for a zero-gravity mixer, comprising a mixer housing, wherein a bidirectional stirring mechanism is provided inside the mixer housing;

[0006] The bidirectional stirring mechanism includes a rotary motor fixedly installed on the right side of the mixing chamber; a first rotating shaft fixedly installed on the left side of the rotary motor; a drive gear fixedly installed on the outside of the first rotating shaft; and a second rotating shaft rotatably connected to the inside of the mixing chamber and extending to the outside.

[0007] A driven gear fixedly installed on the outside of the second rotating shaft and meshing with the drive gear; a stirring blade movably connected to the outside of the first and second rotating shafts; and an adjustment and disassembly mechanism including an adjustment mechanism disposed on the outside of the first and second rotating shafts.

[0008] Optionally, the adjustment and disassembly mechanism includes an installation box fixedly installed on the outer sides of both the first and second rotating shafts; a telescopic spring fixedly installed inside the installation box; a movable plate fixedly installed on one side of the telescopic spring; limiting blocks fixedly installed on the top and bottom of the movable plate and slidably connected to the installation box; and snap-fit ​​components provided on both sides of the movable plate.

[0009] By adopting the above technical solution, it is convenient to install the telescopic spring and press and compress it to make it move.

[0010] Optionally, the snap-fit ​​assembly includes a movable rod fixedly installed on one side of the movable plate and extending to the outside of the mounting box; a pull ring fixedly installed on the side of the movable rod away from the movable plate; and a limiting pin fixedly installed on the other side of the movable plate and inserted into the stirring blade.

[0011] By adopting the above technical solution, it is convenient to insert and fix the stirring blade with the limiting pin and to disassemble and detach it.

[0012] Optionally, bearing grooves are provided on both the left and right sides of the mixing chamber, and the first and second rotating shafts are rotatably connected to the mixing chamber through corresponding bearing grooves.

[0013] By adopting the above technical solution, it is convenient for the first and second rotating shafts to rotate in opposite directions.

[0014] Optionally, the number of stirring blades is several, and the stirring blades are evenly arranged on the outer side of the first rotating shaft and the second rotating shaft.

[0015] By adopting the above technical solution, it is convenient for the stirring blades to perform effective and uniform mixing.

[0016] Optionally, the outer sides of the first and second rotating shafts are provided with slots, and the stirring blades are engaged with the first and second rotating shafts through the slots.

[0017] By adopting the above technical solution, it is helpful to fix the stirring blades on the outside of the first and second rotating shafts.

[0018] Optionally, a movable groove is provided on one side of the mounting box, and the movable rod extends to the outside of the mounting box through the movable groove.

[0019] By adopting the above technical solution, the movable rod can be moved freely inside the mounting box.

[0020] Furthermore, slots are provided on both the left and right sides of the stirring blade, and the limiting pin is inserted into the stirring blade through the slots.

[0021] By adopting the above technical solution, it is convenient to limit and fix the stirring blade 7 and to quickly disassemble it.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This zero-gravity mixer features a dual-shaft paddle stirring mechanism. Through a rotating motor, a first shaft, a drive gear, a driven gear, and a second shaft, the stirring paddles on the outer sides of the first and second shafts rotate in opposite directions. As the material passes over these opposing rotating paddles, it undergoes rapid bidirectional mixing. This bidirectional stirring significantly enhances the mixing effect. Using a pull ring, movable rod, and movable plate, the limit pin can be disengaged from the outer side of the stirring paddles, eliminating the need for paddle insertion and fixation. The paddles can then be directly removed from the outer side of the first and second shafts for easy disassembly and replacement with paddles of different lengths and sizes, facilitating effective mixing of various materials. Attached Figure Description

[0024] Figure 1 This is a top view of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram showing the connection between the first rotating shaft and the stirring blade structure of this utility model;

[0026] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0027] Figure 4 This is an external perspective view of the structure of this utility model.

[0028] In the diagram: 1. Mixing box; 2. Rotary motor; 3. First rotating shaft; 4. Drive gear; 5. Second rotating shaft; 6. Driven gear; 7. Stirring blade; 8. Mounting box; 9. Telescopic spring; 10. Movable plate; 11. Limit block; 12. Movable rod; 13. Pull ring; 14. Limit pin. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-3 The zero-gravity mixer dual-shaft paddle stirring mechanism in this embodiment includes a mixer box 1, and a bidirectional stirring mechanism is provided inside the mixer box 1.

[0031] In this embodiment, the bidirectional stirring mechanism includes a rotary motor 2 fixedly installed on the right side of the mixing chamber 1; the rotary motor 2 in this application is a permanent magnet stepper motor that can rotate in both directions. The mixing chamber 1 is made of high-quality steel plate with a thickness generally between 0.8-2 mm. This material has high strength and can withstand the weight of the equipment inside the chamber as well as a certain degree of external impact. The first rotating shaft 3 is fixedly installed on the left side of the rotary motor 2.

[0032] The drive gear 4 is fixedly installed on the outside of the first rotating shaft 3; the second rotating shaft 5 is rotatably connected to the inside of the mixing chamber 1 and extends to the outside. Bearing grooves are provided on both the left and right sides of the mixing chamber 1. The first rotating shaft 3 and the second rotating shaft 5 are rotatably connected to the mixing chamber 1 through the corresponding bearing grooves, which helps the first rotating shaft 3 and the second rotating shaft 5 to rotate inside the mixing chamber 1.

[0033] Among them, the driven gear 6 is fixedly installed on the outside of the second rotating shaft 5 and meshes with the drive gear 4; the stirring blade 7 is movably connected to the outside of the first rotating shaft 3 and the second rotating shaft 5; the outside of the first rotating shaft 3 and the second rotating shaft 5 is provided with a slot, and the stirring blade 7 is engaged with the first rotating shaft 3 and the second rotating shaft 5 through the slot, which helps to install and fix the stirring blade 7 on the outside of the first rotating shaft 3 and the second rotating shaft 5.

[0034] In this embodiment, there are several stirring blades 7, which are evenly arranged on the outer side of the first rotating shaft 3 and the second rotating shaft 5. This helps the stirring blades 7 to effectively and evenly mix and stir. The paddle blades mainly generate tangential flow force. When the blades rotate, the material is pushed by the blades and forms a circular motion in the mixer. This stirring method can make the material fully mixed in the horizontal direction, which is more effective for liquids or granular materials with good flowability. The axial mixing effect of the existing paddle blades is relatively weak, which may lead to uneven mixing of materials in the vertical direction. Therefore, using bidirectional rotation stirring can increase the uniformity of stirring.

[0035] The device includes an adjustment and disassembly mechanism located on the outside of the first rotating shaft 3 and the second rotating shaft 5. The adjustment and disassembly mechanism includes a mounting box 8 fixedly installed on the outside of both the first rotating shaft 3 and the second rotating shaft 5; and a telescopic spring 9 fixedly installed inside the mounting box 8. The telescopic spring, also known as a tension spring, is a mechanical component that uses the elastic deformation of an elastic material (usually metal) to store and release energy. When an external force stretches the spring, the spring generates an elastic force that resists the external force. After the external force disappears, the spring returns to its original shape, which helps to reset and perform telescopic movement. The end structure of the telescopic spring is crucial for its installation and use. Common end structures include hook type, spiral type, and earring type. The hook type end is formed by bending the two ends of the spring into a hook shape, which facilitates connection with other components. The shape of the hook can be circular, semi-circular, or right-angled, depending on the connection method. The spiral type end is formed by winding several turns of the spring end into a spiral shape. This end structure can increase the contact area between the spring and the connecting component and improve the stability of the connection. In this application, one side of the telescopic spring 9 is fixedly connected to the mounting box 8, while the outer side and the other side are movably connected.

[0036] The system includes a movable plate 10 fixedly installed on one side of the telescopic spring 9; a limiting block 11 fixedly installed on the top and bottom of the movable plate 10 and slidably connected to the mounting box 8; and a snap-fit ​​assembly provided on both sides of the movable plate 10, the snap-fit ​​assembly including a movable rod 12 fixedly installed on one side of the movable plate 10 and extending to the outside of the mounting box 8; a movable groove is provided on one side of the mounting box 8, and the movable rod 12 extends to the outside of the mounting box 8 through the movable groove, which helps the movable rod 12 to move.

[0037] In this embodiment, a pull ring 13 is fixedly installed on the side of the movable rod 12 away from the movable plate 10; a limiting pin 14 is fixedly installed on the other side of the movable plate 10 and inserted into the stirring blade 7. Slots are provided on both the left and right sides of the stirring blade 7. The limiting pin 14 is inserted into the stirring blade 7 through the slots, which helps the limiting pin 14 to fix and disassemble the stirring blade 7.

[0038] The working principle of the above embodiments is as follows:

[0039] The dual-shaft paddle stirring mechanism of this zero-gravity mixer can be used by first starting the rotary motor 2, which drives the first rotating shaft 3 to rotate. The rotation of the first rotating shaft 3 drives the drive gear 4 to rotate, which in turn drives the driven gear 6 on the outer side to rotate in the opposite direction. The rotation of the driven gear 6 drives the second rotating shaft 5 to rotate, thus driving the first rotating shaft 3 and the second rotating shaft 5 to rotate in opposite directions. This causes the stirring blades 7 on the outer side of the first rotating shaft 3 and the second rotating shaft 5 to rotate in opposite directions. At this time, the material can be poured into the inside of the mixer box 1. When the material passes through the stirring blades 7 rotating in opposite directions, it undergoes rapid bidirectional stirring and mixing. Using bidirectional stirring can greatly increase the mixing effect of the device.

[0040] When different materials need to be used, the stirring blade 7 can be disassembled and replaced. At this time, pull the ring 13, which drives the movable rod 12 to move. The movable rod 12 moves the movable plate 10, which moves smoothly under the limit of the limiting block 11. This causes the movable plate 10 to move the limiting pin 14 until the limiting pin 14 disengages from the outside of the stirring blade 7, and the stirring blade 7 is no longer inserted and fixed. At this point, the stirring blade 7 can be directly removed from the outside of the first rotating shaft 3 and the second rotating shaft 5 for disassembly. Similarly, when different materials need to be used, the stirring blade 7 can be disassembled. When installing and fixing other sizes of stirring blades 7, first pull the pull ring 13. The pull ring 13 drives the telescopic spring 9 to retract, causing the limiting pin 14 to disengage from the slots inside the first rotating shaft 3 and the second rotating shaft 5. The replacement stirring blade 7 can then be inserted into the slot inside the first rotating shaft 3. Then, slowly release the pull ring 13 again, causing the telescopic spring 9 to drive the limiting pin 14 to re-insert into the stirring blade 7. This allows for the insertion and fixing of the stirring blade 7, facilitating the replacement of stirring blades 7 of other lengths and sizes. It also helps to effectively stir different materials, greatly improving the flexibility and practicality of the device.

Claims

1. A zero-gravity mixer with a dual-shaft paddle stirring mechanism, comprising a mixer housing (1), characterized in that: The mixing chamber (1) is equipped with a bidirectional stirring mechanism inside; The bidirectional stirring mechanism includes a rotary motor (2) fixedly installed on the right side of the mixing chamber (1); a first rotating shaft (3) fixedly installed on the left side of the rotary motor (2); a drive gear (4) fixedly installed on the outside of the first rotating shaft (3); and a second rotating shaft (5) rotatably connected to the inside of the mixing chamber (1) and extending to the outside. A driven gear (6) fixedly installed on the outside of the second rotating shaft (5) and meshing with the drive gear (4); a stirring blade (7) movably connected to the outside of the first rotating shaft (3) and the second rotating shaft (5); including an adjustment and disassembly mechanism disposed on the outside of the first rotating shaft (3) and the second rotating shaft (5).

2. The dual-shaft paddle stirring mechanism for a zero-gravity mixer according to claim 1, characterized in that: The adjustment and disassembly mechanism includes an installation box (8) fixedly installed on the outer sides of the first rotating shaft (3) and the second rotating shaft (5); a telescopic spring (9) fixedly installed inside the installation box (8); a movable plate (10) fixedly installed on one side of the telescopic spring (9); a limiting block (11) fixedly installed on the top and bottom of the movable plate (10) and slidably connected to the installation box (8); and a snap-fit ​​assembly provided on both sides of the movable plate (10).

3. The zero-gravity mixer with a dual-shaft paddle stirring mechanism according to claim 2, characterized in that: The snap-fit ​​assembly includes a movable rod (12) fixedly installed on one side of the movable plate (10) and extending to the outside of the mounting box (8); a pull ring (13) fixedly installed on the side of the movable rod (12) away from the movable plate (10); and a limiting pin (14) fixedly installed on the other side of the movable plate (10) and inserted into the stirring blade (7).

4. The dual-shaft paddle stirring mechanism for a zero-gravity mixer according to claim 1, characterized in that: The mixing chamber (1) has bearing grooves on both the left and right sides, and the first rotating shaft (3) and the second rotating shaft (5) are rotatably connected to the mixing chamber (1) through the corresponding bearing grooves.

5. The dual-shaft paddle stirring mechanism for a zero-gravity mixer according to claim 1, characterized in that: The number of stirring blades (7) is several, and the stirring blades (7) are evenly arranged on the outside of the first rotating shaft (3) and the second rotating shaft (5).

6. The dual-shaft paddle stirring mechanism for a zero-gravity mixer according to claim 1, characterized in that: The first rotating shaft (3) and the second rotating shaft (5) are provided with slots on their outer sides, and the stirring blade (7) is engaged with the first rotating shaft (3) and the second rotating shaft (5) through the slots.

7. The zero-gravity mixer with dual-shaft paddle stirring mechanism according to claim 3, characterized in that: The mounting box (8) has a movable groove on one side, and the movable rod (12) extends to the outside of the mounting box (8) through the movable groove.

8. The dual-shaft paddle stirring mechanism for a zero-gravity mixer according to claim 3, characterized in that: The stirring blade (7) has slots on both the left and right sides, and the limiting pin (14) is inserted into the stirring blade (7) through the slots.

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