Powder stirring mechanism and stirring device

Abstract

The utility model relates to the technical field of material stirring equipment, in particular to a powder stirring mechanism and a stirring device.The powder stirring mechanism comprises a rotor stirring assembly and a driving assembly used for driving the rotor stirring assembly; the rotor stirring assembly comprises a rotating shaft and a plurality of rotor blade groups arranged on the rotating shaft, the rotor blade groups are arranged at intervals in the length direction of the rotating shaft, and the rotor blade groups comprise a plurality of different types of blades. According to the stirring device, the multiple blades are matched, when the rotating shaft rotates, the rotating shaft drives the multiple blades to rotate, and the multiple blades are matched with the stator blade group to guide materials and continuously change the flow direction of the materials, so that the materials can be well stirred and mixed, and the stirring efficiency and the stirring quality of the materials are improved. Meanwhile, as the stirring efficiency and the stirring quality are improved, the materials can be mixed and stirred under the condition of continuous feeding, front-end and rear-end procedures do not need to be paused, and the production speed is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of material mixing equipment, and in particular to a powder mixing mechanism and a mixing device. Background Art

[0002] The stirring mechanism is a mechanical device used to stir powder materials. The stirring mechanism includes a rotating shaft with blades and a drive motor for driving the rotating shaft. During stirring, the powder material is fed into the stirring mechanism, and then the drive motor drives the rotating shaft to rotate. The rotating shaft drives the blades to stir and mix the materials and then discharge the materials.

[0003] Conventional stirring mechanisms can only drive the powder material to flow in a single manner within the stirring mechanism. The powder material is easy to stick together during the mixing process, and it is difficult to continue mixing subsequently, resulting in poor quality of the finished product when discharged. At the same time, the stirring process is intermittent production, and the front-end and back-end processes need to be paused during the stirring process, and continuous production is impossible. When the process has high requirements on the uniformity of the powder material and the particle morphology, it is difficult to meet them. Utility Model Content

[0004] In order to improve the problem of powder materials being easily adhered during the stirring process in the stirring device in the related art, the utility model provides a powder stirring mechanism and a stirring device.

[0005] On the one hand, the present application provides a powder stirring mechanism, including a rotor stirring assembly and a driving assembly for driving the rotor stirring assembly; the rotor stirring assembly includes a rotating shaft and a plurality of rotor blade groups arranged on the rotating shaft, the rotor blade groups are arranged at intervals along the length direction of the rotating shaft, and the rotor blade groups include a plurality of blades of different types.

[0006] Furthermore, the rotor blade group includes at least one first blade group and at least one second blade group arranged along the length direction of the rotating shaft, and the first blade group and the second blade group are arranged at intervals.

[0007] Furthermore, the first blade group includes a plurality of first blades, and the plurality of first blades are arranged along the circumferential direction of the rotating shaft; the second blade group includes a plurality of second blades, and the plurality of second blades are arranged along the circumferential direction of the rotating shaft.

[0008] Furthermore, the first blade includes a first main body arranged on the rotating shaft, one end of the first main body is fixedly connected to the rotating shaft, and the other end of the first main body is provided with a first stirring part for guiding the material.

[0009] Furthermore, one end of the first stirring portion along its length direction is a first front flange, and an included angle α1 between a tangent line of the first front flange and a material repose angle of the first front flange is 10°-30°.

[0010] Furthermore, the other end of the first stirring portion along its length direction is a first rear flange; an included angle α2 between a tangent line of the first rear flange and a material repose angle of the first rear flange is 20°-40°.

[0011] Furthermore, the first stirring portion is arranged in an arc shape.

[0012] Furthermore, the second blade includes a second body arranged along the circumferential direction of the rotating shaft, and a second stirring portion for guiding materials is arranged on a side of the second body away from the rotating shaft, and the guiding direction of the second stirring portion is different from that of the first stirring portion.

[0013] Furthermore, one end of the second stirring portion along its length direction is a second front flange, and an included angle β1 between a tangent line of the second front flange and a material repose angle of the second front flange is 10°-30°.

[0014] Furthermore, the other end of the second stirring portion along its length direction is a second rear flange; an included angle β2 between a tangent line of the second rear flange and a material repose angle of the second rear flange is 20°-40°.

[0015] Furthermore, the second stirring portion is arranged in an arc shape.

[0016] On the other hand, the present application provides a stirring device, comprising a cylinder, a feeding component and a discharging component arranged on the cylinder, wherein any one of the powder stirring mechanisms described above is arranged in the cylinder.

[0017] Furthermore, it also includes a detection component, which includes an upper limit material level meter and a lower limit material level meter arranged on the cylinder.

[0018] Furthermore, the feeding component includes a feeding pipe arranged above the cylinder and a feeding spiral arranged on the feeding pipe, and the feeding pipe is connected to the cylinder.

[0019] Furthermore, the discharging component includes a discharging pipe arranged below the cylinder and a discharging spiral arranged on the discharging pipe, and the discharging pipe is connected to the cylinder.

[0020] The utility model has the following advantages:

[0021] 1. The powder stirring mechanism of the utility model is provided with a rotor stirring assembly, which includes a plurality of blades arranged on a rotating shaft. When the rotating shaft rotates, the rotating shaft drives the plurality of blades to rotate. The plurality of blades cooperate with the stator blade group to guide the material, and continuously change the flow direction of the material, so that the materials can be stirred and mixed better, thereby improving the stirring efficiency and stirring quality of the materials. At the same time, due to the improvement of stirring efficiency and quality, the materials can be mixed and stirred under continuous feeding, without pausing the front-end and back-end processes, thereby effectively improving the production speed.

[0022] 2. In the powder mixing mechanism of the utility model, the rotor blade group is provided with a first blade and a second blade with different guide directions. The first blade and the second blade cooperate with each other. When the powder mixing mechanism is running, the material will flow in at least two directions under the guide action of the first blade and the second blade, thereby achieving high-efficiency and high-quality mixing.

[0023] 3. The stirring device of the utility model sets a detection component in the cylinder, and uses the upper limit level meter and the lower limit level meter to detect the material height in the cylinder, so that the amount of material in the cylinder can be easily known and the feeding and discharging speeds can be controlled according to the material amount, thereby ensuring the stable operation of continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the structure of a powder mixing mechanism of the present application;

[0026] Figure 2 A top view of the first blade group in this application;

[0027] Figure 3 A top view of the second blade group in this application;

[0028] Figure 4 This is a schematic structural diagram of a stirring device of the present application.

[0029] Description of reference numerals:

[0030] 1. rotor stirring assembly; 11. rotating shaft; 12. rotor blade group; 121. first blade group; 1211. first main body; 1212. first stirring part; 12121. first front flange; 12122. first rear flange; 122. second blade group; 1221. second main body; 1222. second stirring part; 12221. second front flange; 12222. second rear flange; 2. driving assembly;

[0031] 01. Cylinder; 011. Exhaust port; 02. Feed component; 021. Feed screw; 03. Discharge component; 031. Discharge screw; 04. Detection component; 041. Upper limit level meter; 042. Lower limit level meter. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0038] Reference Figure 1 On the one hand, the present application provides a powder stirring mechanism, including a rotor stirring assembly 1 for stirring powder materials and a driving assembly 2 for driving the rotor stirring assembly 1. Specifically, the rotor stirring assembly 1 includes a rotating shaft 11 and a plurality of rotor blade groups 12 arranged on the rotating shaft 11, and the plurality of rotor blade groups 12 are arranged along the length direction of the rotating shaft 11. The rotating shaft 11 is driven by the driving assembly 2, and the driving assembly 2 can be a driving motor, and the driving motor can be connected to the rotating shaft 11 through a coupling, a reduction gear set, a reducer or other connecting and positioning parts.

[0039] Reference Figure 2 and Figure 3The rotor blade group 12 includes a plurality of different types of blades. In this embodiment, each group of rotor blade groups 12 includes two types of blade groups, that is, each group of rotor blade groups 12 includes a first blade group 121 and a second blade group 122 arranged along the length direction of the rotating shaft 11. There is at least one group of the first blade group 121 and at least one group of the second blade group 122, and the first blade group 121 and the second blade group 122 are arranged at intervals. It can be understood that the number of the first blade group 121 and the second blade group 122 can be adjusted according to actual needs in each group of rotor blade groups 12.

[0040] The first blade group 121 includes a plurality of first blades, and the plurality of first blades are arranged along the circumferential direction of the rotating shaft 11. In this embodiment, there are two first blades, and the two first blades are respectively located at the two ends of the diameter direction of the rotating shaft 11. The first blade includes a first main body 1211 arranged on the rotating shaft 11, one end of the first main body 1211 is fixedly connected to the rotating shaft 11, and the other end of the first main body 1211 is provided with a first stirring part 1212 for guiding the material. The first stirring part 1212 is used to guide the material. In this embodiment, the first stirring part 1212 is a baffle arranged in a circular arc. Driven by the rotating shaft 11, the first stirring part 1212 will drive the material to move in the direction close to the rotating shaft 11 to gather the material.

[0041] More specifically, with the rotation direction of the rotating shaft 11 as a reference, one end of the first stirring portion 1212 along its length direction is the first front flange 12121, and the first front flange 12121 first contacts the powder material; the other end of the first stirring portion 1212 along its length direction is the first rear flange 12122, and the powder material will transition to the first rear flange 12122 after passing through the first front flange 12121. In this embodiment, in order to achieve a better polymerization effect, the angle α1 between the tangent of the first front flange 12121 and the material repose angle of the first front flange 12121 is 10°-30°. The angle between the line connecting the first front flange 12121 and the axis of the rotating shaft 11 and the perpendicular line to the line is the material repose angle γ. Similarly, the angle α2 between the tangent line of the first rear flange 12122 and the material repose angle of the first rear flange 12122 is 20°-40°. By setting the angle in this way, the material can enter the first stirring part 1212 at a better angle to achieve a better aggregation and diversion effect.

[0042] Similarly, the second blade group 122 includes a plurality of second blades, and the plurality of second blades are arranged along the circumferential direction of the rotating shaft 11. In this embodiment, there are two second blades, and the two second blades are respectively located at the two ends of the diameter direction of the rotating shaft 11. The second blade includes a second body 1221 arranged on the rotating shaft 11, one end of the second body 1221 is fixedly connected to the rotating shaft 11, and the other end of the second body 1221 is provided with a second stirring portion 1222 for guiding the material. The second stirring portion 1222 is used to guide the material. In this embodiment, the second stirring portion 1222 is a baffle arranged in an arc shape, and the direction of the second stirring portion 1222 is opposite to that of the first stirring portion 1212. When observed from a top view, the second stirring portion 1222 is symmetrical with the first stirring portion 1212 about the diameter direction of the rotating shaft 11. Driven by the rotating shaft 11, the second stirring portion 1222 will drive the material to move in a direction away from the rotating shaft 11 to diffuse the material.

[0043] More specifically, with the rotation direction of the rotating shaft 11 as a reference, one end of the second stirring portion 1222 along its length direction is the second front flange 12221, and the second front flange 12221 first contacts the powder material; the other end of the second stirring portion 1222 along its length direction is the second rear flange 12222, and the powder material will transition to the second rear flange 12222 after passing through the second front flange 12221. In this embodiment, in order to achieve a better polymerization effect, the angle β1 between the tangent of the second front flange 12221 and the material repose angle of the second front flange 12221 is 10°-30°. The angle β2 between the tangent of the second rear flange 12222 and the material repose angle of the second rear flange 12222 is 20°-40°. By setting the angle in this way, the material can enter the second stirring portion 1222 at a better angle, thereby achieving a better diffusion and diversion effect.

[0044] Through such an arrangement, after the powder material enters the stirring mechanism, it passes through several rotor stirring assemblies 1 in sequence. Each group of rotor blade groups 12 will form several flow guides in the direction of aggregation and diffusion for the powder material. After multiple flow guides and flow changes, the material enters the discharge component 03 for discharge, thereby effectively improving the stirring and mixing rate and quality. At the same time, due to the increase in the stirring rate, continuous feeding and discharging can be carried out without pausing the front-end and back-end processes to achieve continuous production.

[0045] Reference Figure 4On the other hand, the present application provides a stirring device, comprising a barrel 01, a feeding component 02 and a discharging component 03 disposed in the barrel 01, and the barrel 01 is also provided with the powder stirring mechanism as described above. When the stirring device is in operation, the feeding component 02 introduces powder materials into the barrel 01, and the powder stirring mechanism in the barrel 01 stirs and mixes the introduced powder materials, and the powder materials are discharged through the discharging component 03 after being stirred and mixed.

[0046] Specifically, the barrel 01 is used to support and install various components. In this embodiment, there is a feed port on the top of the barrel 01, and the feed component 02 includes a feed pipe connected to the feed port of the barrel 01 and a feed screw 021 arranged on the feed pipe. Driven by the feed screw 021, the powder material enters the barrel 01 from the feed port through the feed pipe. Correspondingly, there is a discharge port at the bottom of the barrel 01, and the discharge component 03 includes a discharge pipe connected to the discharge port of the barrel 01 and a discharge screw 031 arranged on the discharge pipe. After being stirred and mixed, the material enters the discharge pipe through the discharge port and is discharged under the drive of the discharge screw 031. In addition, there is also an exhaust port 011 on the barrel 01, and the exhaust port 011 is used to discharge the gas generated during the stirring process to balance the air pressure.

[0047] In addition, the stirring device further includes a detection component 04, which includes an upper limit material level meter 041 and a lower limit material level meter 042 disposed on the cylinder 01. In this embodiment, the upper limit material level meter 041 and the lower limit material level meter 042 are respectively disposed on the inner wall of the cylinder 01 and are located above the stator stirring assembly and the rotor stirring assembly 1. When the upper limit material level meter 041 detects material, the feeding is paused or slowed down; when the lower limit material level meter 042 does not detect material, the feeding is accelerated.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A powder stirring mechanism, characterized in that: The invention comprises a rotor stirring assembly (1) and a driving assembly (2) for driving the rotor stirring assembly (1); the rotor stirring assembly (1) comprises a rotating shaft (11) and a plurality of rotor blade groups (12) arranged on the rotating shaft (11); the rotor blade groups (12) are arranged at intervals along the length direction of the rotating shaft (11); and the rotor blade groups (12) comprise a plurality of blades of different types.

2. A powder stirring mechanism according to claim 1, characterized in that: The rotor blade group (12) comprises at least one first blade group (121) and at least one second blade group (122) arranged along the length direction of the rotating shaft (11), and the first blade group (121) and the second blade group (122) are arranged at intervals.

3. A powder stirring mechanism according to claim 2, characterized in that: The first blade group (121) comprises a plurality of first blades, and the plurality of first blades are arranged along the circumferential direction of the rotating shaft (11); the second blade group (122) comprises a plurality of second blades, and the plurality of second blades are arranged along the circumferential direction of the rotating shaft (11).

4. A powder stirring mechanism according to claim 3, characterized in that: The first blade comprises a first main body (1211) arranged on the rotating shaft (11), one end of the first main body (1211) is fixedly connected to the rotating shaft (11), and the other end of the first main body (1211) is provided with a first stirring portion (1212) for guiding materials.

5. A powder stirring mechanism according to claim 4, characterized in that: One end of the first stirring portion (1212) along its length direction is a first front flange (12121), and an included angle α1 between a tangent line of the first front flange (12121) and a material repose angle of the first front flange (12121) is 10°-30°.

6. A powder stirring mechanism according to claim 5, characterized in that: The other end of the first stirring portion (1212) along its length direction is a first rear flange (12122); the included angle α2 between the tangent of the first rear flange (12122) and the material repose angle of the first rear flange (12122) is 20°-40°.

7. A powder stirring mechanism according to any one of claims 4 to 6, characterized in that: The first stirring portion (1212) is arranged in an arc shape.

8. A powder stirring mechanism according to any one of claims 4 to 6, characterized in that: The second blade comprises a second main body (1221) arranged along the circumferential direction of the rotating shaft (11); a second stirring portion (1222) for guiding materials is arranged on a side of the second main body (1221) away from the rotating shaft (11); and a guiding direction of the second stirring portion (1222) is different from that of the first stirring portion (1212).

9. A powder stirring mechanism according to claim 8, characterized in that: One end of the second stirring portion (1222) along its length direction is a second front flange (12221), and an included angle β1 between a tangent line of the second front flange (12221) and a material repose angle of the second front flange (12221) is 10°-30°.

10. A powder stirring mechanism according to claim 9, characterized in that: The other end of the second stirring portion (1222) along its length direction is a second rear flange (12222); an included angle β2 between a tangent line of the second rear flange (12222) and a material repose angle of the second rear flange (12222) is 20°-40°.

11. A powder stirring mechanism according to claim 8, characterized in that: The second stirring portion (1222) is arranged in an arc shape.

12. A stirring device, characterized in that: It comprises a barrel (01), a feeding component (02) and a discharging component (03) arranged on the barrel (01), and a powder stirring mechanism according to any one of claims 1 to 11 is arranged in the barrel (01).

13. A stirring device according to claim 12, characterized in that: It also includes a detection component (04), wherein the detection component (04) includes an upper limit material level meter (041) and a lower limit material level meter (042) arranged on the cylinder (01).

14. A stirring device according to claim 12, characterized in that: The feeding component (02) comprises a feeding pipeline arranged above the barrel (01) and a feeding screw (021) arranged on the feeding pipeline, and the feeding pipeline is connected to the barrel (01).

15. A stirring device according to claim 12, characterized in that: The discharge component (03) comprises a discharge pipe arranged below the cylinder (01) and a discharge screw (031) arranged on the discharge pipe, and the discharge pipe is in communication with the cylinder (01).

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