Mixing equipment for improving uniformity of powder
By setting up a screen and a screening mechanism in the powder mixing equipment, the problem of low uniformity during the powder mixing process is solved, and more efficient powder mixing uniformity and more stable product quality are achieved.
Patent Information
- Application Number
- CN202421801285.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The powder is prone to agglomeration or inconsistent particle size during the mixing process, resulting in a decrease in mixing uniformity and affecting product quality stability and performance consistency.
A mixing device is designed, including a mixing cylinder, a first and a second screen, a screening mechanism and a servo motor. Through the first screen, the second screen is further screened by using the crankshaft and the flow guide ring to separate powder particles of different sizes and improve mixing uniformity.
It effectively improves the mixing uniformity of the powder, avoids the material sticking to the inner wall of the mixing cylinder during the stirring process, simplifies the disassembly and cleaning process of the screen, and improves the stability and smoothness of the flow guide ring.
Smart Images
Figure CN222943269U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder mixing, in particular to a mixing device for improving the uniformity of powder. Background Art
[0002] Powder mixing refers to the process of physically evenly distributing and mutually penetrating two or more powdered materials of different properties through specific equipment and methods, such as stirring, tumbling, convection or shearing, so as to achieve a uniform mixing state at the macro and micro levels, ensuring that the mixed materials have consistent physical and chemical properties. Powder mixing is widely used in many industries such as chemical, pharmaceutical, food, ceramics, etc., and is an indispensable part of industrial production.
[0003] During the powder mixing and stirring process, if the powder clumps or is inconsistent in size, it will have a significant adverse effect on the uniformity of mixing. The agglomeration phenomenon will make it difficult for the powder to be fully dispersed and mixed during stirring, thus forming an uneven block structure and reducing the overall uniformity. The inconsistency of powder particle size will affect the relative movement and collision between particles during stirring, making large particles more likely to gather together, while small particles may be covered or wrapped by large particles, resulting in local concentrations that are too high or too low. These uneven mixing states will affect the quality stability and performance consistency of the product, and may even cause product quality problems.
[0004] In order to solve the above problems, we have made improvements and proposed a mixing equipment that can improve the uniformity of powders. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a mixing device for improving the uniformity of powder, comprising a mixing cylinder, the mixing cylinder comprising an upper cylinder, a lower cylinder and a cylinder cover, a first clamping ring is fixedly connected to the top of the inner wall of the upper cylinder, a first screen is mounted on the top of the first clamping ring, and a screening mechanism is arranged at the middle end of the inner cavity of the lower cylinder;
[0006] The screening mechanism includes a crankshaft, which is movably connected to the right side of the inner cavity of the cylinder cover through a bearing, a movable sleeve is movably connected to the surface of the crankshaft, a movable rod is movably connected to the top of the movable sleeve through a rotating shaft, a guide ring is movably connected to the top of the movable rod through a rotating shaft, second retaining rings are fixedly connected to the left and right sides of the top of the guide ring, and a second screen is mounted on the top of the second retaining ring.
[0007] Preferably, the screening mechanism further comprises a servo motor, the servo motor is fixedly connected to the right side of the lower cylinder, and the output end of the servo motor is fixedly connected to the right side of the crankshaft.
[0008] Preferably, the left and right sides of the bottom of the second screen are fixedly connected with second clamping blocks, and the second clamping blocks are clamped in the inner cavity of the second clamping ring. The left and right sides of the bottom of the first screen are fixedly connected with first clamping blocks, and the first clamping blocks are clamped in the inner cavity of the first clamping ring.
[0009] Preferably, guide grooves are provided on both left and right sides of the inner wall of the lower cylinder, and the outer side of the guide ring is slidably connected to the inner cavity of the guide groove.
[0010] Preferably, a guide frame is fixedly connected to the top of the inner cavity of the upper cylinder, a mixing motor is fixedly connected to the inner side of the guide frame, a first stirring shaft is fixedly connected to the output end of the mixing motor, connecting rods are fixedly connected to the tops of the left and right sides of the first stirring shaft, a scraper is fixedly connected to the outer side of the connecting rod, the outer side of the scraper is in contact with the inner wall of the mixing cylinder, and a second stirring shaft is fixedly connected to the bottom of the connecting rod.
[0011] Preferably, the lower cylinder is fixedly connected to the bottom of the upper cylinder, the bottom of the lower cylinder is connected to a discharge pipe, and a discharge valve is arranged on the surface of the discharge pipe, guide plates are obliquely arranged on the left and right sides of the bottom of the inner cavity of the lower cylinder, the cylinder cover is fixedly connected to the top of the upper cylinder, the top of the cylinder cover is connected to a feed pipe, the outer side of the cylinder cover is fixedly connected to a support plate, and the left and right sides of the bottom of the support plate are fixedly connected to a support frame.
[0012] Compared with the prior art, the utility model provides a mixing device for improving the uniformity of powders, which has the following beneficial effects:
[0013] 1. The mixing equipment for improving the uniformity of powders can preliminarily screen the materials by setting the first screen, retain the larger materials on the top of the first screen, improve the mixing uniformity of the powders, and drive the guide ring to move up and down through the transmission of the movable sleeve and the movable rod by utilizing the crank mechanism principle during the rotation of the crankshaft. The guide ring drives the second screen to move up and down through the second clamping ring, and can screen the materials again, separate the powder particles of different sizes, and further improve the mixing uniformity of the materials.
[0014] 2. The mixing equipment for improving the uniformity of powder can clean the inner wall of the mixing barrel by arranging a scraper, so as to prevent the material from adhering to the inner wall during the stirring process and causing adverse effects on the powder mixing. By arranging the second clamping block and the second clamping ring, it is convenient to disassemble the second screen for cleaning or replacement. By arranging the first clamping ring and the first clamping block, the first screen can be disassembled for cleaning or replacement. By arranging the guide groove, the stability and smoothness of the guide ring during the up and down movement can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;
[0019] Figure 4 It is a structural schematic diagram of the screening mechanism of the utility model.
[0020] Wherein: 1. mixing cylinder; 101. upper cylinder; 102. lower cylinder; 103. cylinder cover; 2. feed pipe; 3. discharge pipe; 4. support plate; 5. support frame; 6. guide frame; 7. mixing motor; 8. first stirring shaft; 9. connecting rod; 10. scraper; 11. second stirring shaft; 12. screening mechanism; 1201. servo motor; 1202. crankshaft; 1203. movable sleeve; 1204. movable rod; 1205. guide ring; 1206. second clamping ring; 1207. second screen; 1208. second clamping block; 13. guide chute; 14. guide plate; 15. first clamping ring; 16. first screen; 17. first clamping block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-4A mixing device for improving the uniformity of powders comprises a mixing drum 1, wherein the mixing drum 1 comprises an upper drum 101, a lower drum 102 and a drum cover 103, wherein a first clamping ring 15 is fixedly connected to the top of the inner wall of the upper drum 101, a first screen 16 is mounted on the top of the first clamping ring 15, and a screening mechanism 12 is arranged at the middle end of the inner cavity of the lower drum 102; the screening mechanism 12 comprises a crankshaft 1202, wherein the crankshaft 1202 is movably connected to the right side of the inner cavity of the drum cover 103 through a bearing, a movable sleeve 1203 is movably connected to the surface of the crankshaft 1202, a movable rod 1204 is movably connected to the top of the movable sleeve 1203 through a rotating shaft, a guide ring 1205 is movably connected to the top of the movable rod 1204 through a rotating shaft, and both left and right sides of the top of the guide ring 1205 are fixedly connected with A second retaining ring 1206, a second screen 1207 is mounted on the top of the second retaining ring 1206, the screening mechanism 12 also includes a servo motor 1201, the servo motor 1201 is fixedly connected to the right side of the lower cylinder 102, the output end of the servo motor 1201 is fixedly connected to the right side of the crankshaft 1202, the left and right sides of the bottom of the second screen 1207 are fixedly connected with second clamping blocks 1208, the second clamping blocks 1208 are clamped in the inner cavity of the second retaining ring 1206, the left and right sides of the bottom of the first screen 16 are fixedly connected with first clamping blocks 17, the first clamping blocks 17 are clamped in the inner cavity of the first retaining ring 15, the left and right sides of the inner wall of the lower cylinder 102 are opened with guide grooves 13, the outer side of the guide ring 1205 is slidably connected in the inner cavity of the guide groove 13.
[0023] Through the above technical scheme, by setting the first screen 16, the material can be preliminarily screened, and the larger material can be retained on the top of the first screen 16, thereby improving the mixing uniformity of the powder. The crankshaft 1202 uses the crank mechanism principle to drive the guide ring 1205 up and down through the movable sleeve 1203 and the movable rod 1204 during the rotation process. The guide ring 1205 drives the second screen 1207 to move up and down through the second retaining ring 1206, so that the material can be screened again, and powder particles of different sizes can be separated, thereby further improving the mixing uniformity of the material. By setting the second clamping block 1208 and the second clamping ring 1206, the second screen 1207 can be easily disassembled for cleaning or replacement. By setting the first retaining ring 15 and the first clamping block 17, the first screen 16 can be disassembled for cleaning or replacement. By setting the guide slot 13, the stability and smoothness of the guide ring 1205 in the process of moving up and down can be effectively improved.
[0024] Specifically, the top of the inner cavity of the upper cylinder 101 is fixedly connected with a guide frame 6, the inner side of the guide frame 6 is fixedly connected with a mixing motor 7, the output end of the mixing motor 7 is fixedly connected with a first stirring shaft 8, the tops of the left and right sides of the first stirring shaft 8 are fixedly connected with connecting rods 9, the outer side of the connecting rod 9 is fixedly connected with a scraper 10, the outer side of the scraper 10 contacts the inner wall of the mixing cylinder 1, the bottom of the connecting rod 9 is fixedly connected with a second stirring shaft 11, the lower cylinder 102 is fixedly connected to the bottom of the upper cylinder 101, the bottom of the lower cylinder 102 is connected with a discharge pipe 3, and a discharge valve is provided on the surface of the discharge pipe 3, the left and right sides of the bottom of the inner cavity of the lower cylinder 102 are obliquely provided with guide plates 14, the cylinder cover 103 is fixedly connected to the top of the upper cylinder 101, the top of the cylinder cover 103 is connected with a feed pipe 2, the outer side of the cylinder cover 103 is fixedly connected with a support plate 4, and the left and right sides of the bottom of the support plate 4 are fixedly connected with support frames 5.
[0025] Through the above technical solution, by setting the upper cylinder 101, the lower cylinder 102 and the cylinder cover 103 as a detachable structure, it can be convenient to clean or repair them later. The first stirring shaft 8 and the second stirring shaft 11 are driven to rotate by the output end of the mixing motor 7, so that the powder can be fully mixed. By setting the scraper 10, the inner wall of the mixing cylinder 1 can be cleaned to avoid the material adhering to its inner wall during the mixing process, which may cause adverse effects on the powder mixing.
[0026] When in use, the material enters the inner cavity of the mixing drum 1 through the feed pipe 2, and the material is preliminarily screened by the first screen 16 to retain larger materials. At this time, the output end of the mixing motor 7 drives the first stirring shaft 8 to rotate, and the first stirring shaft 8 drives the second stirring shaft 11 to rotate through the connecting rod 9 to mix the materials. At the same time, the connecting rod 9 drives the scraper 10 to rotate along the inner wall of the mixing drum 1 to prevent the material from hanging on the wall during the mixing process. Then, the output end of the servo motor 1201 drives the crankshaft 1202 to rotate. During the rotation process, the crankshaft 1202 uses the crank mechanism principle to drive the guide ring 1205 to move up and down through the movable sleeve 1203 and the movable rod 1204. The guide ring 1205 drives the second screen 1207 to move up and down through the second retaining ring 1206, which can screen the material again, separate powder particles of different sizes, and further improve the mixing uniformity of the material (the above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field).
[0027] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A mixing device for improving the uniformity of powder, comprising a mixing barrel (1), characterized in that: The mixing cylinder (1) comprises an upper cylinder (101), a lower cylinder (102) and a cylinder cover (103); a first clamping ring (15) is fixedly connected to the top of the inner wall of the upper cylinder (101); a first screen (16) is mounted on the top of the first clamping ring (15); and a screening mechanism (12) is provided at the middle end of the inner cavity of the lower cylinder (102); The screening mechanism (12) comprises a crankshaft (1202), wherein the crankshaft (1202) is movably connected to the right side of the inner cavity of the cylinder cover (103) via a bearing, a movable sleeve (1203) is movably connected to the surface of the crankshaft (1202), the top of the movable sleeve (1203) is movably connected to a movable rod (1204) via a rotating shaft, the top of the movable rod (1204) is movably connected to a guide ring (1205) via a rotating shaft, the left and right sides of the top of the guide ring (1205) are fixedly connected to second retaining rings (1206), and a second screen (1207) is mounted on the top of the second retaining ring (1206).
2. A mixing device for improving powder uniformity according to claim 1, characterized in that: The screening mechanism (12) further comprises a servo motor (1201), wherein the servo motor (1201) is fixedly connected to the right side of the lower cylinder (102), and an output end of the servo motor (1201) is fixedly connected to the right side of the crankshaft (1202).
3. A mixing device for improving powder uniformity according to claim 1, characterized in that: The second screen (1207) is fixedly connected to the left and right sides of the bottom with a second clamping block (1208), and the second clamping block (1208) is clamped in the inner cavity of the second clamping ring (1206). The first screen (16) is fixedly connected to the left and right sides of the bottom with a first clamping block (17), and the first clamping block (17) is clamped in the inner cavity of the first clamping ring (15).
4. A mixing device for improving powder uniformity according to claim 1, characterized in that: The left and right sides of the inner wall of the lower cylinder (102) are provided with guide grooves (13), and the outer side of the guide ring (1205) is slidably connected to the inner cavity of the guide groove (13).
5. A mixing device for improving powder uniformity according to claim 1, characterized in that: A flow guide frame (6) is fixedly connected to the top of the inner cavity of the upper cylinder (101), a mixing motor (7) is fixedly connected to the inner side of the flow guide frame (6), a first stirring shaft (8) is fixedly connected to the output end of the mixing motor (7), connecting rods (9) are fixedly connected to the tops of both left and right sides of the first stirring shaft (8), a scraper (10) is fixedly connected to the outer side of the connecting rod (9), the outer side of the scraper (10) is in contact with the inner wall of the mixing cylinder (1), and a second stirring shaft (11) is fixedly connected to the bottom of the connecting rod (9).
6. A mixing device for improving powder uniformity according to claim 1, characterized in that: The lower cylinder (102) is fixedly connected to the bottom of the upper cylinder (101); the bottom of the lower cylinder (102) is connected to a discharge pipe (3), and a discharge valve is arranged on the surface of the discharge pipe (3); guide plates (14) are obliquely arranged on the left and right sides of the bottom of the inner cavity of the lower cylinder (102); the cylinder cover (103) is fixedly connected to the top of the upper cylinder (101); the top of the cylinder cover (103) is connected to a feed pipe (2); the outer side of the cylinder cover (103) is fixedly connected to a support plate (4); and the left and right sides of the bottom of the support plate (4) are fixedly connected to a support frame (5).