Mixing device

Abstract

The utility model relates to the technical field of material mixing, in particular to a mixing device. The mixing device comprises a mixing barrel and a screw. Wherein a feed port and a discharge port are respectively arranged at two ends close to the mixing barrel, the screw rod and the mixing barrel are coaxially arranged in the mixing barrel, and the mixing barrel is obliquely arranged, so that one end of the discharge port is higher than one end of the feed port, and various materials are close to one end of the feed port under the action of gravity, so that the positions of the various materials are concentrated; therefore, the materials can be fully mixed in the mixing barrel, and the mixing uniformity and stability can be improved.

Description

Technical Field

[0001] This utility model relates to the field of material mixing technology, and in particular to a mixing device. Background Technology

[0002] In many industrial production processes, such as chemical, plastics processing, and food manufacturing, it is often necessary to uniformly mix various materials to obtain mixtures with specific properties. Traditional batch mixers suffer from low production efficiency when processing large quantities of materials.

[0003] To address the aforementioned problems, continuous mixing devices are commonly used to mix materials. These devices include a mixing drum and a screw, with the screw coaxially aligned with the drum. The drum has an inlet and an outlet, and is horizontally positioned. However, because the blades on the screw divide the mixing drum into multiple spaces, and because the drum is horizontal, the screw easily pushes material towards the outlet, resulting in unstable mixing uniformity.

[0004] To address the aforementioned problems, there is an urgent need to provide a mixing device that can resolve the issue of unstable material mixing uniformity. Utility Model Content

[0005] The purpose of this invention is to provide a mixing device that, by setting the inlet lower than the outlet, ensures that the materials are fully mixed in the mixing tank, thereby improving the mixing uniformity and stability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A mixing device, comprising:

[0008] A mixing tank has an inlet and an outlet at its two ends near the mixing tank, respectively. The mixing tank is tilted so that one end of the outlet is higher than one end of the inlet.

[0009] The screw is coaxially disposed in the mixing tank.

[0010] As an alternative, the screw includes:

[0011] Shaft body;

[0012] The mixing propeller is a plurality of such propellers, which are arranged sequentially along the axial direction of the shaft.

[0013] As an alternative, the cross-sectional shape of the shaft is polygonal, the mixing paddle is provided with mounting holes, the mounting holes are correspondingly provided with the shaft, and the mixing paddle is sleeved on the shaft.

[0014] As an optional embodiment, the hybrid propeller includes:

[0015] The body, wherein the outer periphery of the body is polygonal; and

[0016] Multiple blades are provided, which are respectively disposed on each side of the polygonal body, or the blades are disposed at intervals on multiple sides of the body.

[0017] As an optional solution, two adjacent mixing propellers are set at a preset angle, where the preset angle is the central angle corresponding to each side of the body.

[0018] As an optional feature, the screw further includes:

[0019] A fastener is fitted onto one end of the shaft body, and the fastener is configured to constrain the displacement of the mixing paddle along the axial direction of the shaft body.

[0020] As an optional feature, the screw further includes:

[0021] A gasket is disposed between the fixing member and the mixing paddle located away from the feed inlet.

[0022] As an optional feature, the mixing tank is also provided with an exhaust port, which is located near the end of the mixing tank away from the feed inlet.

[0023] As an optional solution, the mixing device further includes:

[0024] support;

[0025] A fixing seat is disposed on the bracket, and the fixing seat is configured to hold the mixing tank.

[0026] As an optional solution, the mixing device further includes:

[0027] A drive assembly is disposed at one end of the screw, and the drive assembly is configured to drive the screw to rotate.

[0028] The beneficial effects of this utility model are as follows:

[0029] This invention provides a mixing device, which includes a mixing tank and a screw. An inlet and an outlet are respectively located at opposite ends near the mixing tank. The screw is coaxially mounted within the mixing tank, which is tilted so that the outlet is higher than the inlet. This causes various materials to move towards the inlet under gravity, concentrating their positions and ensuring thorough mixing within the mixing tank. This improves mixing uniformity and stability. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the mixing device provided in this embodiment of the utility model. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of the mixing device provided in this embodiment of the utility model. Figure 2 ;

[0033] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0034] Figure 4 yes Figure 1 Schematic diagram of a partial cross-sectional structure at point BB;

[0035] Figure 5 This is a schematic diagram of the screw structure provided in an embodiment of the present invention.

[0036] The markings in the image are as follows:

[0037] 100 - Mixing tank; 110 - Feed inlet; 120 - Discharge outlet; 130 - Exhaust outlet;

[0038] 200-Screw; 210-Shaft; 220-Mixing Paddle; 221-Body; 222-Paddle Blade; 230-Fixing Component; 250-Shim; 260-Mixing Space;

[0039] 300-Standard;

[0040] 400-Fixed base;

[0041] 500 - Drive assembly; 510 - Servo motor; 520 - Reducer; 530 - Housing. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only partial structures relevant to the present invention, not the complete structure.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection of the internal structures of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] like Figures 1-3 As shown, this embodiment provides a mixing device, which includes a mixing tank 100 and a screw 200. An inlet 110 and an outlet 120 are respectively located near the two ends of the mixing tank 100. The screw 200 is coaxially arranged within the mixing tank 100. In use, material is fed in through the inlet 110, and the rotation of the screw 200 mixes the material in the mixing tank 100. The screw 200 also pushes the material towards the outlet 120. Because the screw 200 rotates continuously, both the inlet 110 and the outlet 120 remain open. The inlet 110 can continuously feed material, the screw 200 continuously mixes and conveys the material, and the outlet 120 continuously discharges material, achieving continuous mixing. This mixing device can effectively and continuously mix various materials uniformly, improving mixing efficiency and quality, and meeting the needs of continuous production.

[0047] Specifically, the feed inlet 110 is designed to open upwards to facilitate feeding into it. Meanwhile, the discharge outlet 120 is designed to open downwards to facilitate material discharge from it.

[0048] like Figure 4 As shown, in this embodiment, the mixing device further includes a drive assembly 500 for driving the screw 200 to rotate. The output end of the drive assembly 500 is connected to one end of the screw 200. Specifically, the drive assembly 500 includes a servo motor 510 and a reducer 520, which helps to ensure output accuracy and efficiency when the screw 200 rotates at low speed. Meanwhile, to protect the servo motor 510 and the reducer 520, the drive assembly 500 also includes a cover 530, which covers the servo motor 510 and the reducer 520 to improve the safety of the mixing device.

[0049] If different materials are continuously fed into the inlet 110 of the mixing device, as the screw 200 rotates, the materials fed in first may be pushed forward a certain distance by the screw 200 before the materials fed in later just enter the inlet 110, resulting in unstable mixing uniformity of the various materials. To solve this problem, in this embodiment, the mixing tank 100 is tilted so that one end of the outlet 120 is higher than one end of the inlet 110. This causes the various materials to move closer to one end of the inlet 110 under the action of gravity, so that the different materials are concentrated in one position, ensuring that the materials are fully mixed in the mixing tank 100, which is beneficial to improving the mixing uniformity and stability.

[0050] Specifically, please see Figure 3 and Figure 5 The screw 200 includes a shaft 210 and mixing paddles 220. Multiple mixing paddles 220 are arranged sequentially along the axial direction of the shaft 210. These multiple mixing paddles divide the mixing tank 100 into multiple mixing spaces 260 for mixing materials. When various materials are fed into the inlet 110, the materials are mixed in each mixing space 260. Simultaneously, during the rotation of the screw 200, the mixing paddles 220 can push the materials towards the outlet 120, thus conveying the materials. Optionally, one end of the shaft 210 is provided with a large-diameter end cap to limit the movement of the mixing paddles 220. The mixing paddles 220 are assembled and fixed one by one from the end of the shaft 210 away from the end cap.

[0051] Furthermore, the outer periphery of the mixing paddle 220 is fitted with the inner wall of the mixing barrel 100 with a clearance to avoid interference. At the same time, the clearance between the outer periphery of the mixing paddle 220 and the inner wall of the mixing barrel 100 is between 1mm and 4mm, which ensures a small clearance and helps to ensure that each mixing space 260 is relatively independent, thereby improving the uniformity of material mixing.

[0052] In one embodiment, the shaft 210 has a polygonal cross-sectional shape, and the mixing propeller 220 has mounting holes corresponding to those on the shaft 210. The mixing propeller 220 is fitted onto the shaft 210, allowing for separate processing of the mixing propeller 220 and the shaft 210, which helps reduce processing costs. Simultaneously, the polygonal constraint between the mixing propeller 220 and the shaft 210 restricts the circumferential movement of the mixing propeller 220 relative to the shaft 210, which helps improve the structural stability of the assembled screw 200. Exemplarily, the mixing propeller 220 is molded, which further reduces processing costs. Exemplarily, the cross-sectional shape of the shaft 210 can be quadrilateral, pentagonal, hexagonal, etc.

[0053] Optionally, the mixing propeller 220 includes a body 221 and a plurality of blades 222. The outer periphery of the body 221 is polygonal, and the plurality of blades 222 are respectively disposed on each side of the polygonal body 221. At least one blade 222 is disposed on each side of the body 221, so that blades 222 are disposed along the circumference of the shaft 210 to improve the mixing effect of the mixing propeller 220.

[0054] In another embodiment, blades 222 are spaced apart on multiple sides of the body 221.

[0055] Adjacent mixing blades 220 are set at a preset angle, where the preset angle is the central angle corresponding to each side of the main body 221. Optionally, in this embodiment, the shaft 210 is a regular hexagonal structure, and the main body 221 is also a hexagonal structure accordingly, that is, the main body 221 has six sides, and the central angle corresponding to each side is 60°. In this case, adjacent mixing blades 220 are set at a 60° angle. During assembly, after the first mixing blade 220 is assembled, the second mixing blade is rotated 60°, the third mixing blade is rotated 60° again, and so on, assembling multiple mixing blades 220 one by one along the axial direction of the shaft 210. In this way, multiple mixing blades 220 form a spirally rotating blade 222, which is beneficial to improving the mixing effect.

[0056] The screw 200 also includes a fixing member 230, which is sleeved on one end of the shaft 210. The fixing member 230 is configured to constrain the displacement of the mixing propeller 220 along the axial direction of the shaft 210, so as to achieve the effect of fixing the mixing propeller 220. Optionally, the fixing member 230 is a nut. Nuts are commonly used fixing structures, with simple structures, easy assembly and disassembly, and low cost.

[0057] In addition, a gasket 250 may be provided between the fixing member 230 and the mixing paddle 220 which is far from the feed port 110 to improve the stability of the fixing.

[0058] In addition, the mixing tank 100 is also provided with an exhaust port 130. The exhaust port 130 is located near the end of the mixing tank 100 away from the feed port 110 to balance the air pressure inside and outside the mixing tank 100, which helps to ensure that the discharge port 120 can continuously discharge material.

[0059] Of course, the mixing device also includes a support 300 and a fixing base 400. The fixing base 400 is mounted on the support 300 and is used to mount the mixing tank 100 to ensure the stability of the mixing tank 100. At the same time, the support 300 can be equipped with multiple balancing feet to ensure the overall balance of the mixing device.

[0060] Note that the above description illustrates and describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of the claimed utility model, which is defined by the appended claims and their equivalents.

Claims

1. A mixing device, characterized by The utility model relates to a mixing device, which comprises: a mixing barrel (100) having an inlet (110) and an outlet (120) at two ends thereof, respectively, and being inclinedly arranged so that one end of the outlet (120) is higher than one end of the inlet (110); a screw (200) coaxially arranged in the mixing barrel (100).

2. The mixing device of claim 1, wherein, The screw (200) comprises: a shaft body (210); a plurality of mixing paddles (220) arranged along the axial direction of the shaft body (210) in sequence.

3. The mixing device of claim 2, wherein, The cross-sectional shape of the shaft body (210) is polygonal, and the mixing paddles (220) are provided with mounting holes corresponding to the shaft body (210) and are sleeved on the shaft body (210).

4. The mixing device of claim 2, wherein, The mixing paddles (220) comprise: a body (221) having a polygonal outer contour; and a plurality of blades (222) arranged on each side of the polygonal body (221) or arranged at intervals on multiple sides of the body (221).

5. The mixing device of claim 4, wherein, Two adjacent mixing paddles (220) are arranged at a preset angle corresponding to the central angle of each side of the body (221).

6. The mixing device of claim 2, wherein The screw (200) further comprises: a fixing member (230) sleeved on one end of the shaft body (210), configured to constrain the displacement of the mixing paddles (220) in the axial direction of the shaft body (210).

7. The mixing device of claim 6, wherein The screw (200) further comprises: a gasket (250) arranged between the fixing member (230) and the mixing paddles (220) away from the inlet (110).

8. The mixing device of any one of claims 1-7, wherein, The mixing barrel (100) is further provided with an exhaust port (130) arranged near one end of the mixing barrel (100) away from the inlet (110).

9. The mixing device of any one of claims 1-7, wherein, The mixing device further comprises: a support (300); a fixing seat (400) arranged on the support (300) and configured to arrange the mixing barrel (100).

10. The mixing device of any one of claims 1-7, wherein, The mixing device further comprises: a driving assembly (500) arranged at one end of the screw (200) and configured to drive the screw (200) to rotate.

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