Fly cutter, cutter and mixing equipment
By designing specific structures of flying knives and misaligned tools, combined with vertical and bucket-shaped cylinder mixing equipment, the problem of uneven material mixing in high-energy carbon machine is solved, achieving more efficient mixing effects and lower maintenance costs.
Patent Information
- Application Number
- CN202422122375.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In the process of preparing ultrafine tungsten carbide powder, the existing high-energy carbon distribution machines have poor material fluidity and are difficult to mix. In particular, the fluidity becomes worse after mixing carbon black and tungsten powder, resulting in uneven mixing.
A flying knife is designed, including a fixed part and an inclined first and second blade bodies. The inclination angle of the second blade body is greater than that of the first blade body, and the surface is coated with a nickel-based tungsten carbide wear-resistant layer. The tool is installed in a layered and dislocated manner along the rotation axis. The mixing equipment is equipped with a vertical and bucket-shaped cylinder body, a coulter and a mixing device.
It improves the efficiency and uniformity of material mixing, reduces viscosity problems, extends the service life of the flying knife, reduces equipment maintenance costs, and achieves a more efficient mixing effect.
Smart Images
Figure CN223249135U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of efficient material mixing, in particular to a flying knife, a cutting tool and material mixing equipment. Background Art
[0002] With the continuous development of modern industrial technology, ultrafine tungsten carbide powder is increasingly used in many fields, such as cemented carbide, metal ceramics, abrasives, etc. In the process of preparing ultrafine tungsten carbide powder, the carbon mixing process is crucial.
[0003] At present, the equipment used in this process is mainly a high-energy carbon mixing machine, which consists of a transmission mechanism, a vertical cylinder, a plow blade, a flying knife, etc. In the high-energy carbon mixing machine, tungsten and carbon powder are convectively moved along the cylinder wall under the action of the plow blade. When the material flows through the flying knife, it is thrown by the high-speed rotating flying knife. The strong cutting action of the flying knife enables it to have high-performance mixing quality, thereby achieving uniform mixing in a shorter time.
[0004] However, the existing high-energy carbon mixing machine has poor material fluidity and difficulty in mixing in the carbon mixing process of preparing ultrafine tungsten carbide powder; carbon black is sticky, and its overall fluidity deteriorates after mixing with tungsten powder, resulting in increased difficulty in mixing and uneven material mixing. Utility Model Content
[0005] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a flying knife, a cutting tool and a mixing device.
[0006] In the first aspect, a flying knife adopts the following technical solution:
[0007] A flying cutter comprises a fixed portion located in the middle, a first cutter body portion respectively arranged on both sides of the fixed portion, and a second cutter body portion respectively located on both sides as an extension of the first cutter body portion, wherein the fixed portion is used to be fixedly connected to a rotating shaft, the first cutter body portion is inclined in a direction close to the rotating shaft, the second cutter body portion has the same inclination direction as the first cutter body portion, and the angle at which the second cutter body portion is inclined toward the rotating shaft is greater than the angle at which the first cutter body portion is inclined toward the rotating shaft.
[0008] Furthermore, the first blade body portion and the second blade body portion are provided with cutting edges along the rotation direction of the rotation axis.
[0009] Furthermore, a nickel-based tungsten carbide wear-resistant layer is provided on the surface of the flying cutter.
[0010] In the second aspect, a cutting tool adopts the following technical solution:
[0011] A cutting tool comprises a rotating shaft and the above-mentioned flying cutter, wherein the fixing portion is fixedly connected to the rotating shaft.
[0012] Furthermore, more than two layers of the flying cutters are arranged along the axial direction of the rotating shaft, and at least one flying cutter is installed in each layer.
[0013] Furthermore, the uppermost layer and the lowermost layer of the tool along the axial direction of the rotating shaft are respectively provided with multiple flying cutters; and the middle layer of the tool along the direction of the rotating shaft is provided with a single flying cutter.
[0014] Furthermore, the plurality of flying knives are staggered and fixed, and the flying knives of two adjacent layers of single-pieces are staggered and fixed.
[0015] Furthermore, when the angle of the staggered fixed setting of the multiple flying cutters is 60°, the cross section of the rotating shaft is a regular hexagon, and the number of the flying cutters installed is 2 to 3;
[0016] Alternatively, when the angle of the staggered fixed setting is 90°, the cross section of the rotating shaft is a square, and the number of flying cutters installed is 2.
[0017] In the third aspect, a mixing device adopts the following technical solution:
[0018] A mixing device comprises the aforementioned cutter.
[0019] Furthermore, the mixing equipment further comprises:
[0020] A vertical cylinder, wherein the upper portion of the vertical cylinder is a cylindrical cylinder and the lower portion of the vertical cylinder is a bucket-shaped cylinder; a feed port is provided at the top of the vertical cylinder, and the material enters the interior of the vertical cylinder through the feed port;
[0021] A plow, the plow is installed at the center of the vertical cylinder, the plow is connected to a reduction motor, and the reduction motor drives the plow to rotate and lift the central material;
[0022] A mixing device is symmetrically installed on the bucket-shaped cylinder; the mixing device includes a motor and a cutter, the motor drives the cutter to rotate, the motor is arranged outside the bucket-shaped cylinder, and the cutter is arranged inside the bucket-shaped cylinder.
[0023] Beneficial effects of the utility model:
[0024] The flying cutter provided by the utility model has a first cutter body portion and a second cutter body portion obliquely arranged on both sides of its fixed portion, and the angle of inclination of the second cutter body portion to the rotating axis is greater than the angle of inclination of the first cutter body portion to the rotating axis, thereby enhancing the cutting effect of the flying cutter during high-speed rotation and improving the mixing efficiency of the material; the structural design of the flying cutter helps to optimize the flow of materials in the mixing equipment, reduce viscosity problems, and thus improve the overall mixing quality and uniformity. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 Schematic diagram of the structure of the flying knife;
[0026] Figure 2 Schematic diagram of the tool structure;
[0027] Figure 3 It is a structural diagram of the mixing equipment;
[0028] 10. Flying cutter; 11. Fixed part; 12. First cutter body; 13. Second cutter body; 14. Cutting edge; 20. Tool; 21. Rotating shaft; 30. Mixing device; 31. Vertical cylinder; 311. Cylindrical cylinder; 312. Bucket-shaped cylinder; 32. Feed inlet; 33. Plow blade; 34. Mixing device; 341. Motor. DETAILED DESCRIPTION
[0029] The following is a further detailed description of a flying knife, a cutting tool and a mixing device described in the present invention in conjunction with the examples. For the sake of simplicity of description, this document cannot enumerate all the alternative technical features and implementation schemes contained in the present invention. Therefore, those skilled in the art should know that any technical features and implementation schemes in this embodiment do not limit the scope of protection of the present invention, which includes any alternative technical features and implementation schemes adopted by all those skilled in the art without creative work. Specifically, the implementation schemes obtained by replacing any technical feature in the present invention or combining any two or more technical features provided by the present invention should all be within the scope of protection of the present invention.
[0030] This embodiment provides a flying knife 10, such as Figure 1 The flying cutter 10 includes a central fixing portion 11, first blade portions 12 disposed on either side of the fixing portion 11, and second blade portions 13 extending outward from the first blade portions 12. The fixing portion 11 is configured to be fixedly connected to a rotation axis 21. The first blade portion 12 is tilted toward the rotation axis 21, and the second blade portion 13 is tilted in the same direction as the first blade portion 12. The second blade portion 13 is tilted toward the rotation axis 21 at a greater angle than the first blade portion 12.
[0031] In some embodiments, the first blade body portion 12 and the second blade body portion 13 are provided with cutting edges 14 along the rotation direction of the rotation axis.
[0032] In some embodiments, a nickel-based tungsten carbide wear-resistant layer is provided on the surface of the flying cutter 10 .
[0033] Nickel-based tungsten carbide is a high-hardness and wear-resistant material. Setting it on the surface of the fly cutter 10 can significantly improve the wear resistance of the fly cutter 10; this wear-resistant layer can reduce the wear of the material on the fly cutter 10 and extend the service life of the fly cutter 10; even in long-term continuous use, this wear-resistant layer can maintain the cutting performance of the fly cutter 10 and ensure the efficiency and quality of material mixing; because the wear-resistant layer can significantly reduce the wear of the fly cutter 10, the need for frequent replacement of the fly cutter 10 can be reduced, thereby reducing the maintenance cost of the equipment.
[0034] This embodiment provides a tool 20, such as Figure 2 The tool 20 includes a rotating shaft 21 and a flying cutter 10 , and the fixing portion 11 is fixedly connected to the rotating shaft 21 .
[0035] In some embodiments, as Figure 2 More than two layers of flying cutters 10 are arranged along the direction of the rotating shaft 21, with at least one flying cutter 10 being installed on each layer.
[0036] By arranging and installing the flying cutters 10 along the direction of the rotating shaft 21, the effective cutting area of the mixing zone can be increased, thereby improving the efficiency of material mixing; allowing more flying cutters 10 to be installed in a limited space, increasing the mixing area, and helping to mix materials more quickly and evenly; the layered installation of the flying cutters 10 can optimize the flow of materials in the mixing equipment, reduce the accumulation and adhesion of materials, and ensure the uniform distribution of materials during the mixing process.
[0037] The rotating shaft 21 provides stable support, ensuring that the flying cutter 10 can remain stable during high-speed rotation, avoiding uneven mixing or equipment damage due to vibration or swinging; by installing the flying cutters 10 in layers, the number of flying cutters 10 can be increased or decreased according to the mixing requirements, providing flexible equipment configuration to adapt to different material properties and mixing requirements; the layered installation design facilitates the maintenance and replacement of the flying cutter 10, especially when the flying cutter 10 is worn or needs to be replaced, it can be operated more conveniently.
[0038] In some embodiments, the uppermost and lowermost layers of the tool 20 along the rotation axis 21 are respectively provided with multiple flying cutters 10 ; the middle layer of the tool 20 along the rotation axis 21 is provided with a single flying cutter 10 .
[0039] In some embodiments, multiple flying cutters 10 are staggered and fixed, and two adjacent layers of single-piece flying cutters 10 are staggered and fixed.
[0040] By staggering the installation of the flying cutter 10, a more uniform distribution of materials can be achieved during the mixing process; local accumulation of materials can be reduced, ensuring that the materials in the entire mixing area can be fully mixed and processed; staggered installation helps the materials to flow more smoothly during the mixing process, reduces blockage and adhesion of materials in the mixing area, and improves mixing efficiency.
[0041] In a mixing device, if all the flying knives 10 are installed in the same direction and order, uneven mixing of the materials in certain areas will occur; staggered installation can reduce this phenomenon and ensure uniform treatment of the materials during the mixing process; by staggering the flying knives 10 between adjacent layers, the interaction between the materials and the flying knives 10 can be increased, thereby improving the mixing efficiency; this design helps to achieve higher quality mixing effects in a shorter time.
[0042] In some embodiments, when the staggered fixed setting angle of the multiple flying knives 10 on the uppermost and lowermost layers is 60°, the cross section of the rotating shaft 21 is a regular hexagon, and the number of flying knives 10 installed is 2 to 3;
[0043] Alternatively, when the offset installation angle is 90°, the cross section of the rotating shaft 21 is a square, and the number of flying cutters 10 installed is two.
[0044] The staggered installation at different angles can increase the interaction between the material and the flying knife 10, thereby improving the mixing efficiency; a smaller angle can provide a milder mixing effect, while a larger angle provides a stronger mixing effect; the staggered installation at different angles helps to optimize the flow of materials during the mixing process, reduce the blockage and adhesion of materials in the mixing area, and ensure the uniform distribution of materials during the mixing process.
[0045] Choosing different offset installation angles can adapt to the characteristics of different materials. For example, for materials with high viscosity, a smaller offset installation angle may be required to reduce tearing and damage to the material. By providing multiple offset installation angle options, the equipment can more flexibly adapt to different mixing needs and material characteristics, improving its versatility and adaptability. Different angles of offset installation allow adjustments based on specific mixing needs and material characteristics to achieve the best mixing effect.
[0046] Different cross-sectional shapes of the rotating shaft 21 and the corresponding number of flying cutters 10 installed can help improve the efficiency of material mixing. For example, a regular hexagonal rotating shaft can provide more mixing area, while a square rotating shaft 21 may provide a more concentrated mixing effect. Different cross-sectional shapes of the rotating shaft 21 can optimize the flow of materials during the mixing process, reduce material blockage and adhesion in the mixing area, and ensure uniform distribution of materials during the mixing process.
[0047] Selecting different cross-sectional shapes of the rotating shaft 21 and the number of flying knives 10 installed can adapt to the characteristics of different materials; for example, for materials with larger particles, more flying knives 10 and a larger mixing area are required; by providing multiple options for cross-sectional shapes of the rotating shaft 21 and the number of flying knives 10 installed, the equipment can more flexibly adapt to different mixing needs and material characteristics, improving its versatility and adaptability; different shapes of cross-sectional shapes of the rotating shaft 21 and the number of flying knives 10 installed allow adjustments according to specific mixing needs and material characteristics to achieve the best mixing effect.
[0048] For example, Figure 2 The rotating shaft 21 is sleeved with three layers of flying cutters 10. The cross section of the rotating shaft 21 is a regular hexagon. The bottom layer is equipped with three flying cutters 10, which are staggered by 60 degrees. The top layer is equipped with two flying cutters 10, which are staggered by 60 degrees. The middle layer is a single flying cutter 10.
[0049] This embodiment provides a mixing device 30, such as Figure 3 The mixing device 30 includes a cutter 20 .
[0050] In some embodiments, the mixing device 30 further includes:
[0051] The vertical cylinder 31 has a cylindrical upper portion 311 and a bucket-shaped lower portion 312. A feed port 32 is provided at the top of the vertical cylinder 31, and the material enters the interior of the vertical cylinder 31 through the feed port 32.
[0052] The plow 33 is installed at the center of the vertical cylinder 31. The plow 33 is connected to a reduction motor, which drives the plow 33 to rotate and lift the center material;
[0053] The mixing device 34 is symmetrically installed on the bucket-shaped cylinder 312; the mixing device 34 includes a motor 341 and a cutter 20, the motor 341 drives the cutter 20 to rotate. The motor 341 is set outside the bucket-shaped cylinder 312, and the cutter 20 is set inside the bucket-shaped cylinder 312.
[0054] The upper part of the vertical cylinder 31 is a cylindrical cylinder 311, and the lower part is a bucket-shaped cylinder 312. This design can effectively guide the material to enter from the top and form an effective mixing area inside the cylinder.
[0055] The feed port 32 is located at the top, which facilitates the addition and control of materials and reduces the loss of materials during the addition process.
[0056] The plow blade 33 is installed in the center of the cylinder and is used to lift the material so that the material forms a circulation flow in the cylinder, which helps the mixing process.
[0057] A reduction motor (not shown) is connected to the plow blade 33 to drive it to rotate, thereby achieving the lifting and mixing of materials. This design can reduce energy consumption while ensuring the stability and efficiency of the mixing process.
[0058] Symmetrical Installation The mixing device 34 is symmetrically installed on the bucket-shaped cylinder 312. This symmetrical design helps to ensure uniform mixing of materials in the cylinder.
[0059] The mixing device 34 includes a motor 341 and a cutter 20. The motor 341 is connected to the rotating shaft 21 in the cutter 20 to drive the cutter 20 to rotate, thereby mixing the material sinking along the edge of the vertical cylinder 31; this design can improve the mixing efficiency especially when processing sticky or difficult-to-mix materials.
[0060] The motor 341 is arranged outside the bucket-shaped cylinder 312 for easy maintenance and operation.
[0061] The cutter 20 is disposed inside the bucket-shaped cylinder 312 , close to the material mixing area, to ensure that the material can be fully mixed.
[0062] Those skilled in the art will appreciate that other variations or modifications may be made based on the above description. It is not necessary and impossible to enumerate all embodiments here, and any obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this utility model.
Claims
1. A flying knife, characterized in that: The flying cutter includes a fixed part located in the middle, a first blade body part respectively arranged on both sides of the fixed part, and a second blade body part respectively located on both sides of the first blade body part. The fixed part is used to be fixedly connected to the rotating shaft, the first blade body part is inclined in the direction close to the rotating shaft, the second blade body part is inclined in the same direction as the first blade body part, and the angle at which the second blade body part is inclined to the rotating shaft is greater than the angle at which the first blade body part is inclined to the rotating shaft.
2. A flying knife according to claim 1, characterized in that: The first blade body portion and the second blade body portion are provided with cutting edges along the rotation direction of the rotation axis.
3. A flying knife according to claim 1, characterized in that: The surface of the flying cutter is provided with a nickel-based tungsten carbide wear-resistant layer.
4. A cutting tool, characterized in that: The tool comprises a rotating shaft and a flying cutter according to any one of claims 1 to 3, and the fixing portion is fixedly connected to the rotating shaft.
5. A cutting tool according to claim 4, characterized in that: More than two layers of the flying cutters are arranged along the axial direction of the rotating shaft, and at least one flying cutter is installed in each layer.
6. A cutting tool according to claim 5, characterized in that: The uppermost layer and the lowermost layer of the tool along the axial direction of the rotating shaft are respectively provided with multiple flying cutters; the middle layer of the tool along the direction of the rotating shaft is provided with a single flying cutter.
7. A cutting tool according to claim 6, characterized in that: The flying knives of the plurality of sheets are staggered and fixed, and the flying knives of the two adjacent layers of single sheets are staggered and fixed.
8. A cutting tool according to claim 7, characterized in that: When the angle of the staggered fixed arrangement of the plurality of flying cutters is 60°, the cross section of the rotating shaft is a regular hexagon, and the number of flying cutters installed is 2 to 3; Alternatively, when the angle of the staggered fixed setting is 90°, the cross section of the rotating shaft is a square, and the number of flying cutters installed is 2.
9. A mixing device, characterized in that: The mixing device comprises the cutting tool according to any one of claims 4 to 8.
10. A mixing device according to claim 9, characterized in that: The mixing equipment also includes: A vertical cylinder, wherein the upper portion of the vertical cylinder is a cylindrical cylinder and the lower portion of the vertical cylinder is a bucket-shaped cylinder; a feed port is provided at the top of the vertical cylinder, and the material enters the interior of the vertical cylinder through the feed port; A plow, the plow is installed at the center of the vertical cylinder, the plow is connected to a reduction motor, and the reduction motor drives the plow to rotate and lift the central material; A mixing device is symmetrically installed on the bucket-shaped cylinder; the mixing device includes a motor and a cutter, the motor drives the cutter to rotate, the motor is arranged outside the bucket-shaped cylinder, and the cutter is arranged inside the bucket-shaped cylinder.