Mixer for metal additive production

Abstract

The invention relates to the technical field of mixers, and provides a metal additive production mixer which comprises a first mixing bin, the first mixing bin is provided with a first mixing cavity, and the first mixing bin comprises a distributing hopper rotationally connected to the interior of the first mixing cavity and a stirring part connected to the lower portion of the distributing hopper; the material distribution hopper is provided with a plurality of material distribution grooves distributed in the circumferential direction, premixing holes communicated with the material distribution grooves are formed in the bottom of the material distribution hopper, when the first material mixing part rotates, the premixing holes are used for discharging materials in the material distribution grooves into the first material mixing cavity under the action of centrifugal force, and the stirring part is located below the premixing holes and rotates along with the material distribution hopper; and the materials discharged into the first material mixing cavity are stirred. By means of the technical scheme, the technical problems that in the prior art, a mixer is uneven in mixing and high in energy consumption are solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of mixers, and more specifically, to a mixer for producing metal additives. Background Art

[0002] In the field of metal additive production, as a key piece of equipment, the performance of the mixer directly affects the quality and production efficiency of metal additives. However, traditional mixers have many problems in practical applications and are difficult to meet the strict requirements of modern metal additive production for efficient and uniform mixing.

[0003] Most mixers use a simple stirring method for mixing. This method mainly relies on the mechanical movement of the stirring components to achieve the mixing of materials, and there are obvious limitations. On the one hand, for a large quantity of materials, simple stirring is difficult to achieve uniform mixing in a short time. Especially when the material specifications are different, it is easy for a certain material to agglomerate or be difficult to disperse, resulting in poor mixing effects. On the other hand, the design of a single feed port makes the way materials enter the mixing chamber single, and the contact opportunities between materials are limited, making it difficult to achieve multi-directional dispersion, further affecting the uniformity of mixing.

[0004] The mixing efficiency of traditional mixers is relatively low. Due to the lack of an effective premixing mechanism, all mixing work relies on the stirring components to complete, which makes the working burden of the stirring components relatively heavy and requires a long working time to achieve a certain mixing effect. Moreover, long-term stirring not only increases the energy consumption of the equipment but also may cause the materials to be subjected to excessive shear and friction during stirring, affecting the performance and quality of the materials. Summary of the Invention

[0005] To overcome the above defects, the present invention provides a mixer for producing metal additives, which solves the technical problems of uneven mixing and high energy consumption of mixers in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a mixer for producing metal additives, including: A first mixing bin, the first mixing bin having a first mixing chamber; A first mixing member, the first mixing member including a cloth hopper rotatably connected in the first mixing chamber and a stirring part connected below the cloth hopper. The cloth hopper has a plurality of circumferentially arranged cloth grooves, and the bottom of the cloth hopper has premixing holes communicating with the cloth grooves. When the first mixing member rotates, the premixing holes are used to discharge the materials in the cloth grooves into the first mixing chamber under the action of centrifugal force, and the stirring part is located below the premixing holes and rotates with the cloth hopper to stir the materials discharged into the first mixing chamber.

[0007] For example, in at least one embodiment of the present disclosure, a mixer for producing metal additives is provided, wherein the first mixing part comprises: A mounting shaft, the mounting shaft is rotatably disposed in the first mixing chamber and extends in the up-down direction, the mounting shaft has a radially penetrating mounting groove, the mounting shaft passes through the distribution hopper and is fixedly connected to the distribution hopper; A stirring shaft is provided to penetrate the installation groove, and the outer periphery of the stirring shaft has the stirring part.

[0008] For example, at least one embodiment of the present disclosure provides a mixer for producing metal additives, wherein the inner circumferential wall of the first mixing bin is further provided with an annular groove, the lower side wall of the annular groove is provided with a first tooth portion, the end of the stirring shaft is provided with a circumferentially arranged second tooth portion, the second tooth portion is meshed with the first tooth portion, and further comprises: A sealing swivel is rotatably arranged at the notch of the annular groove for sealing the annular groove. The end of the stirring shaft passes through the sealing swivel. When the mounting shaft rotates, the stirring shaft and the sealing swivel can be driven to rotate synchronously. The second tooth portion drives the stirring shaft to rotate circumferentially under the guidance of the first tooth portion so as to stir the material with the help of the stirring portion.

[0009] For example, at least one embodiment of the present disclosure provides a mixer for metal additive production, wherein the inner cavity of the distribution hopper is conical, and the cross-sectional area gradually decreases from top to bottom; the distribution hopper is provided with a plurality of partitions arranged at intervals in the circumferential direction, and the distribution trough is formed between two adjacent partitions; The outer peripheral wall of the installation shaft is provided with a plurality of circumferentially arranged clearance grooves, the partition has a fixing portion protruding toward the axial center side of the installation shaft, and the partition can slide down along the axial direction of the installation shaft into the material distribution hopper so that the fixing portion is clamped into the clearance groove.

[0010] For example, at least one embodiment of the present disclosure provides a mixer for producing metal additives, wherein a sliding cavity is provided on the peripheral wall of the premixing hole, a baffle and an elastic member connected to the baffle are slidably arranged in the sliding cavity, and the elastic member is used to elastically push the baffle to make the baffle slide and block the premixing hole.

[0011] For example, at least one embodiment of the present disclosure provides a mixer for producing metal additives, further comprising: A feeding hopper, which is arranged on the top of the first mixing bin, and there are multiple feeding hoppers, each of which is connected to a feeding pipe; The material distribution bins, which are fixedly connected to the feed pipe, are provided in plurality. The material distribution bins are located on the outer periphery of the cloth hopper and are rotationally engaged with the cloth hopper. An annular cloth groove is formed inside the material distribution bin, and the feed pipe is in one-to-one correspondence and communication with the annular cloth groove.

[0012] For example, a mixer for producing metal additives provided by at least one embodiment of the present disclosure, the bottom of the first mixing chamber has a premixing outlet, and further includes: A second mixing bin, which is arranged below the first mixing bin. The second mixing bin has a second mixing chamber, and the second mixing chamber is communicated with the first mixing chamber through the premixing outlet; A second mixing member, which is rotatably arranged in the second mixing chamber and is used for stirring the materials in the second mixing chamber.

[0013] For example, a mixer for producing metal additives provided by at least one embodiment of the present disclosure, the upper end of the second mixing member has a material scattering assembly corresponding to the premixing outlet up and down, including a material throwing part and a material receiving hopper connected above the material throwing part. A material falling channel for the material to fall is formed between the material throwing part and the material receiving hopper. The material throwing part is used for dispersing the material flowing out of the material receiving hopper. The material throwing part is conical, and the cross-sectional area of the material throwing part gradually increases from top to bottom.

[0014] For example, a mixer for producing metal additives provided by at least one embodiment of the present disclosure, the second mixing member includes: A rotating shaft, which is rotatably arranged in the second mixing chamber; A stirring member, which is connected to the outer periphery of the rotating shaft and is used for stirring the materials in the second mixing chamber. The stirring member has an upwardly convex arc-shaped material pushing part, and the arc-shaped material pushing part faces the material scattering assembly; A scraping member, which is arranged at the outer end of the stirring member and can contact the inner peripheral wall of the second mixing chamber to clean the materials adhered to the wall of the second mixing chamber.

[0015] For example, a mixer for producing metal additives provided by at least one embodiment of the present disclosure, further includes: A valve, which is arranged at the premixing outlet and is used for opening or closing the premixing outlet.

[0016] The beneficial effects of the embodiments of the present invention are as follows: In the present invention, a plurality of cloth grooves are uniformly arranged on the cloth hopper of the first mixing member for accommodating materials and enabling the materials to be smoothly discharged under the action of centrifugal force. A premixing hole communicated with the cloth groove is arranged at the bottom of the cloth hopper, and the premixing hole can ensure that the materials can be smoothly discharged into the first mixing chamber under the action of centrifugal force.

[0017] The stirring part stirs the material discharged from the premixing holes. Since the material has been preliminarily dispersed in the cloth-feeding tank, the stirring part can stir the material more effectively, avoiding the problems of material accumulation and uneven stirring. A number of cloth-feeding tanks are arranged in a circle, enabling different materials to enter the first mixing cavity from multiple directions. Under the action of the rotation of the first mixing part, multi-directional dispersion of the material can be achieved during feeding.

[0018] The stirring part continuously stirs the material entering the first mixing cavity, further promoting the mixing of the material. The design of the stirring part can cover all areas in the mixing cavity, ensuring that the material is fully stirred in the mixing cavity.

[0019] By adjusting the rotation speed of the first mixing part, the magnitude of the centrifugal force of the material in the cloth-feeding tank can be changed, thereby controlling the speed and quantity of the material discharged into the first mixing cavity. At the same time, the stirring speed and time of the stirring part can also be adjusted as needed to achieve the best mixing effect. Since the cloth-feeding tank realizes the rapid dispersion and premixing of the material, the working burden of the stirring part is reduced, enabling the stirring part to complete the mixing task in a shorter time. Compared with the traditional mixing method, the working time of the stirring part is shortened, thereby reducing the energy consumption of the equipment. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the exemplary embodiments of the present invention and these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention; Figure 2 It is Figure 1 a three-dimensional sectional structural diagram of the embodiment of Figure 3 It is Figure 1 an enlarged structural diagram of A in Figure 4 It is Figure 1 an enlarged structural diagram of B in Figure 5 It is Figure 1 an enlarged structural diagram of C in

[0022] In the figure: First mixing bin - 1, first mixing cavity - 101, annular groove - 102, first tooth part - 103, premixing outlet - 104, first mixing part - 2, cloth trough - 201, stirring part - 202, premixing hole - 203, mounting shaft - 204, mounting groove - 205, cloth hopper - 206, partition board - 208, stirring shaft - 209, second tooth part - 210, relief groove - 211, fixing part - 212, sliding cavity - 213, baffle - 214, elastic part - 215, feed inlet - 216, sealing rotating ring - 3, feeding hopper - 4, feed pipe - 401, material distribution bin - 402, annular cloth trough - 403, second mixing bin - 5, second mixing cavity - 501, second mixing part - 6, bulk material component - 601, material receiving hopper - 602, material throwing part - 603, through hole - 604, rotating shaft - 605, stirring part - 606, scraping part - 607, arc-shaped material pushing part - 608, valve - 7. Detailed implementation mode The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0023] To make the drawings concise, only the parts related to the invention are schematically shown in each drawing, and they do not represent their actual structures as products. In addition, to make the drawings concise and easy to understand, in some drawings, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0024] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0026] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0027] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be construed as indicating or implying relative importance.

[0028] As Figures 1 to 5 shown, it shows a mixer for producing metal additives in an embodiment of the present invention.

[0029] In some examples, a plurality of cloth grooves 201 are uniformly arranged on the cloth hopper 206 of the first mixing member 2 for accommodating materials and enabling the materials to be smoothly discharged under the action of centrifugal force. A premixing hole 203 communicating with the cloth groove 201 is provided at the bottom of the cloth hopper 206, and the premixing hole 203 can ensure that the materials can be smoothly discharged into the first mixing cavity 101 under the action of centrifugal force.

[0030] The stirring part 202 stirs the materials discharged from the premixing hole 203. Since the materials have been preliminarily dispersed in the cloth groove 201, the stirring part 202 can more effectively stir the materials, avoiding the problems of material accumulation and uneven stirring. The plurality of cloth grooves 201 are arranged in a circumferential manner, enabling different materials to enter the first mixing cavity 101 from multiple directions, and under the action of the rotation of the first mixing member 2, multi-directional dispersion of the materials can be achieved during feeding.

[0031] The stirring part 202 continuously stirs the materials entering the first mixing cavity 101, further promoting the mixing of the materials. The design of the stirring part 202 can cover all regions in the mixing cavity, ensuring that the materials are fully stirred in the mixing cavity.

[0032] By adjusting the rotation speed of the first mixing component 2, the centrifugal force of the material in the material distribution trough 201 can be changed, thereby controlling the speed and quantity of the material discharged into the first mixing chamber 101. At the same time, the mixing speed and time of the mixing part 202 can also be adjusted according to needs to achieve the best mixing effect. Since the material distribution trough 201 realizes the rapid dispersion and premixing of the material, the working burden of the mixing part 202 is reduced, enabling the mixing part 202 to complete the mixing task in a shorter time. Compared with the traditional mixing method, the working time of the mixing part 202 is shortened, thus reducing the energy consumption of the equipment.

[0033] In some examples, the mixing shaft 209 is rotatably arranged in the installation groove 205 and is perpendicular to the rotation axis of the installation shaft 204, and the mixing part 202 can mix the material in different directions. The rotation of the installation shaft 204 drives the mixing shaft 209 to perform a circular motion in the first mixing chamber 101, and at the same time, the mixing shaft 209 itself also rotates, realizing multi-dimensional mixing of the material, achieving the effect of uniform mixing of the material in a shorter time, and improving the mixing efficiency.

[0034] The design that the mixing shaft 209 is perpendicular to the installation shaft 204 enables the mixing part 202 to cover different areas in the first mixing chamber 101 and realize all-round mixing of the material. Whether it is the central area close to the installation shaft 204 or the edge area close to the inner wall of the first mixing bin 1, the material can be fully mixed.

[0035] The components of the first mixing component 2 are relatively independent, and the installation and disassembly are relatively convenient. When a certain component is worn or fails, the operator can easily maintain or replace it without large-scale disassembly of the entire mixer, reducing the maintenance cost of the equipment and improving the use efficiency of the equipment.

[0036] In some examples, when the installation shaft 204 rotates, it drives the mixing shaft 209 and the sealing rotating ring 3 to rotate circumferentially around the installation shaft 204. At the same time, the second tooth part 210 meshes with the first tooth part 103, causing the mixing shaft 209 to rotate in the axial direction perpendicular to the installation shaft 204. This compound rotation method enables the mixing part 202 to form a complex mixing trajectory in the first mixing chamber 101 and mix the material in multiple directions and at multiple angles. Due to the compound rotation of the mixing shaft 209, the flow and exchange speed of the material in the first mixing chamber 101 are accelerated. Materials at different positions can be stirred together faster, reducing the time required for mixing.

[0037] The provision of the annular groove 102 and the sealing rotating ring 3 offers stable support and guidance for the rotation of the stirring shaft 209. The sealing rotating ring 3 seals the notch of the annular groove 102, preventing debris from entering the annular groove 102 and affecting the rotation of the stirring shaft 209. Meanwhile, it plays a certain positioning role for the stirring shaft 209. The engagement of the second tooth part 210 and the first tooth part 103 also makes the rotation of the stirring shaft 209 more stable, avoiding shaking or deviation of the stirring shaft 209 during rotation, ensuring the normal progress of the mixing process, and extending the service life of the equipment.

[0038] The sealing rotating ring 3 seals the annular groove 102, effectively preventing the material in the first mixing chamber 101 from leaking from the annular groove 102. This not only ensures the normal progress of the mixing process, avoids material waste, but also reduces the pollution to the equipment and the working environment caused by material leakage.

[0039] Convenient for component inspection and maintenance: The provision of the sealing rotating ring 3 enables the operator to conveniently open the notch of the annular groove 102 to inspect and maintain components such as the stirring shaft 209, the second tooth part 210, and the first tooth part 103. When these components are worn or malfunction, they can be promptly detected and replaced or repaired without the need for large-scale disassembly of the entire mixer.

[0040] In some examples, the inner cavity of the feeding hopper 206 is conical, and the partition plate 208 divides it into several feeding grooves 201, enabling the material to be stored in the feeding grooves 201 orderly. When the first mixing member 2 rotates, due to the cross-sectional area of the feeding hopper 206 gradually decreasing from top to bottom, under the combined action of gravity and centrifugal force, the material is more likely to be discharged into the first mixing chamber 101 through the premixing holes 203, achieving rapid premixing. Compared with the disorderly feeding method in traditional mixers, this orderly feeding improves the premixing speed, greatly shortens the preliminary preparation time of mixing, saves time for subsequent stirring, and improves the overall mixing efficiency.

[0041] Several partition plates 208 are arranged circumferentially around the installation shaft 204, evenly dividing the inner cavity of the feeding hopper 206 into several feeding grooves 201, ensuring that the material can be evenly distributed when entering the first mixing chamber 101. This method of uniform feeding combined with the feeding and stirring actions of rotational feeding enables the mixing effect after mixing for a period of time in the prior art to be achieved immediately after feeding.

[0042] A plurality of relief grooves 211 arranged circumferentially along the mounting shaft 204 cooperate with the fixing portion 212 of the partition plate 208, enabling the partition plate 208 to slide on the mounting shaft 204. When the partition plate 208 slides, the fixing portion 212 slides into or out of the relief groove 211, thereby changing the volume of the material distribution tank 201. For the material mixing requirements of different batches, the operator can adjust the volume of the material distribution tank 201 according to the actual situation to achieve flexible material distribution, thus better meeting the requirements of different production scales.

[0043] By adjusting the volume of the material distribution tank 201, the mixing process can also be optimized. For some metal additive materials that require special mixing ratios, the volume of each material distribution tank 201 can be adjusted according to the characteristics and mixing requirements of the materials, so that the materials of different components have a suitable proportion distribution before entering the first mixing chamber 101. Different metal additive materials have different characteristics such as particle size, density, and fluidity. The slidable design of the partition plate 208 enables the mixer to be adjusted according to the characteristics of the materials. For materials with larger particle sizes, the volume of the material distribution tank 201 can be appropriately increased to accommodate more materials and ensure their smooth entry into the first mixing chamber 101; for materials with poor fluidity, the shape and size of the material distribution tank 201 can be adjusted to improve the fluidity of the materials, expanding the application range of the equipment.

[0044] In some examples, the baffle plate 214 is slidably arranged in the sliding cavity 213 and can block or open the premixing hole 203 under the action of the elastic member 215. The conical structure of the premixing hole 203 and the adjustability of the baffle plate 214 help prevent the material from clogging the premixing hole 203. When the material has a larger particle size or poor fluidity, the elastic coefficient of the elastic member 215 can be appropriately adjusted, so as to adjust the position of the baffle plate 214 according to the rotation speed and control the feeding speed of the material to avoid the material from accumulating and clogging in the premixing hole 203.

[0045] The elastic member 215 provides the force for the baffle plate 214 to block the premixing hole 203. At the same time, the operator can use elastic members 215 with different elastic coefficients according to the actual mixing requirements, and adjust the position of the baffle plate 214 by overcoming the force of the elastic member 215 through the centrifugal force generated during rotation. This design enables the mixer to be flexibly adjusted according to different material characteristics and mixing requirements. The operator can accurately control the feeding speed of the material through the rotation speed.

[0046] By accurately controlling the feeding speed and mixing sequence of the materials, the problem of uneven material mixing can be effectively avoided. Different types of materials enter the first mixing chamber 101 at an appropriate speed and sequence, and can be more fully mixed under the action of the stirring portion 202, improving the uniformity of mixing.

[0047] The size of the premixing holes 203 of the cloth hopper 206 can be adjusted according to the particle size of the material. For materials with larger particle sizes, the size of the premixing holes 203 can be increased to ensure that the materials can be smoothly discharged into the first mixing chamber 101; for materials with smaller particle sizes, the size of the premixing holes 203 can be appropriately reduced to prevent the materials from leaking during the mixing process. The design that the stirring shaft 209 is perpendicular to the mounting shaft 204 enables the stirring part 202 to adjust the stirring method and intensity according to the fluidity of the material. For materials with better fluidity, the stirring speed can be appropriately reduced to avoid splashing of the materials during the stirring process; for materials with poor fluidity, the stirring intensity can be increased to ensure that the materials can be fully mixed.

[0048] In some examples, the corresponding feed pipes 401 of several feeding hoppers 4 are respectively connected to several annular cloth troughs 403 of the material distribution bin 402, and the annular cloth troughs 403 are further connected to the feed ports 216 of the cloth trough 201. This multi-channel cloth feeding method enables different types of materials to enter the cloth trough 201 evenly from multiple directions, avoiding the situation that a single feed port cannot add materials during the operation of the mixer. Through multiple feed pipes 401, the feed amounts of different types of materials can be respectively controlled, so as to accurately control the proportion of each material entering the cloth trough 201, improving the accuracy of the mixer in material proportion control, better meeting the requirements of the production process, and ensuring the stability of the mixing quality.

[0049] Each feed pipe 401 can independently perform the feeding operation. The operator can flexibly select to add different types of materials according to the production requirements. There is no need to alternately add different materials at a single feed port like a traditional mixer, reducing confusion and errors during the feeding process.

[0050] When it is necessary to replace and produce different types of metal additives, the materials can be quickly switched through the independent feed pipes 401. Just close the corresponding feed pipe valve 7 and open the feed pipe valve 7 for the new material, without the need for complex cleaning and adjustment of the entire feeding system.

[0051] In some examples, the materials preliminarily mixed in the first mixing chamber 101 enter the second mixing chamber 501 through the premixing outlet 104, and the second mixing member 6 remixes them. This secondary mixing method can further improve the mixing uniformity of the materials. After the first mixing member 2 completes the preliminary mixing in the first mixing chamber 101, there may still be some cases where the local mixing is insufficient. The remixing by the second mixing member 6 can make up for this deficiency. Compared with a mixer that only performs one mixing, the uniformity of the materials mixed by using this mixer is improved, ensuring the high quality of the metal additive product.

[0052] The premixing outlet 104 faces the bulk material component 601, and the bulk material component 601 can disperse the material flowing out from the premixing outlet 104. This enables the material to be more evenly distributed when entering the second mixing chamber 501, increasing the contact opportunities between the materials, thereby improving the mixing effect.

[0053] Adopting a segmented mixing method, the first mixing chamber 101 and the second mixing chamber 501 are respectively responsible for the mixing tasks in different stages. The first mixing chamber 101 performs preliminary material distribution and premixing, and the second mixing chamber 501 performs further fine mixing. This clearly defined division of labor in the mixing method can improve the mixing efficiency, reduce the time for each mixing stage, improve the production efficiency, and meet the requirements of large-scale production. The rapid dispersion of the material by the bulk material component 601 enables the material to enter the mixed state faster. Under the action of the second mixing member 6, the dispersed material can be quickly and evenly mixed, reducing the time required for mixing.

[0054] In some examples, the receiving hopper 602 is located at the top of the bulk material component 601 and faces the premixing outlet 104 directly. The material flowing out from the premixing outlet 104 of the first mixing chamber 101 can be accurately and efficiently received by the receiving hopper 602. The trough shape of the receiving hopper 602 is adapted to the discharging angle and range of the premixing outlet 104, avoiding the splashing and scattering of the material during the collection process. The material falls from the receiving hopper 602 into the throwing part 603 below through the through hole 604. The through hole 604 can ensure that the material can pass through smoothly and maintain a relatively stable state when entering the throwing part 603, avoiding affecting the subsequent dispersion effect due to too large or too small material flow.

[0055] As the cross-sectional area of the throwing part 603 gradually increases from top to bottom, when the second mixing member 6 drives the throwing part 603 to rotate, the material is thrown outwards along the conical surface under the action of centrifugal force. This structure enables the material to obtain an acceleration during the throwing process, thereby achieving a wide and uniform dispersion of the material in the horizontal direction.

[0056] The material collected by the receiving hopper 602 and dispersed by the throwing part 603 is more evenly distributed in the second mixing chamber 501. This enables the second mixing member 6 to come into more sufficient contact with the material during the stirring and mixing process, avoiding mixing dead corners caused by uneven material distribution.

[0057] In some examples, the stirring member 606 is installed on the rotating shaft 605. When the rotating shaft 605 drives the stirring member 606 to rotate at a high speed, the stirring member 606 can form a strong material flow in the second mixing chamber 501. For metal additive materials with large density differences, the high-speed rotation of the stirring member 606 can overcome the influence of gravity and buoyancy, enabling the heavy and light materials to be fully mixed; for materials with high viscosity, the stirring member 606 can effectively break the adhesion between the materials and achieve uniform dispersion.

[0058] During the mixing process of metal additives, due to factors such as the viscosity and static electricity of the materials, some materials are prone to adhering to the inner wall of the second mixing chamber 501. If these adhered materials are not cleaned in time, it will not only affect the uniformity of mixing, resulting in a decline in product quality, but may also dry and harden after long-term accumulation, damaging the inner wall of the equipment and even affecting the normal operation of the equipment. The scraping member 607 is installed on the rotating shaft 605, and one end thereof is in close contact with the inner wall of the second mixing chamber 501. When the rotating shaft 605 rotates, the scraping member 607 rotates synchronously therewith, scraping off the materials adhered to the inner wall.

[0059] The stirring member 606 and the scraping member 607 work together under the drive of the rotating shaft 605, improving the mixing quality and efficiency. The scraping member 607 keeps the inner wall clean, avoiding the interference of the adhered materials on the mixing uniformity and further improving the mixing effect. At the same time, the efficient mixing process shortens the production cycle, enabling the enterprise to produce more high-quality metal additive products within the same time, improving the market competitiveness and economic benefits of the enterprise.

[0060] In some examples, the arc-shaped pushing portion 608 of the stirring member 606 faces the material scattering assembly 601. When the second mixing member 6 rotates, the arc-shaped pushing portion 608 can apply an additional thrust to the materials scattered from the material scattering assembly 601. This thrust prompts the materials to form a stronger flow and tumbling in the second mixing chamber 501, increasing the collision and mixing opportunities between the materials and further enhancing the mixing uniformity.

[0061] The shape design of the arc-shaped pushing portion 608 makes the flow path of the materials more reasonable during the pushing process. The materials no longer simply move in a straight line in the second mixing chamber 501, but form a complex curved motion trajectory under the action of the arc-shaped pushing portion 608. This optimized flow path helps the materials to be more evenly distributed in the second mixing chamber 501, reducing the mixing dead zones.

[0062] The valve 7 provided at the premixing outlet 104 can precisely control the timing and flow rate of the material in the first mixing chamber 101 entering the second mixing chamber 501. The operator can flexibly open or close the valve 7 according to different production process requirements. When staged mixing is required, the valve 7 can be first closed to fully premix the material in the first mixing chamber 101, and then the valve 7 can be opened to allow the premixed material to enter the second mixing chamber 501 for further mixing, which can better meet the diverse production needs.

[0063] The presence of the valve 7 enables the mixer to adapt to different production rhythms. When there are temporary pauses or adjustments in other links on the production line, the operator can promptly close the valve 7 to suspend the material from entering the second mixing chamber 501 from the first mixing chamber 101, avoiding waste of materials and idling of the equipment. When production resumes normal, the valve 7 can be opened to continue mixing, improving the production flexibility and efficiency of the equipment.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A mixer for metal additive production, characterized in that: include: A first mixing bin (1), the first mixing bin (1) comprising a first mixing chamber (101); A first mixing element (2), the first mixing element (2) comprising a distribution hopper (206) rotatably connected to the first mixing chamber (101) and a stirring portion (202) connected below the distribution hopper (206), the distribution hopper (206) having a plurality of distribution grooves (201) arranged circumferentially, the bottom of the distribution hopper (206) having a premixing hole (203) connected to the distribution groove (201), when the first mixing element (2) rotates, the premixing hole (203) is used to discharge the material in the distribution groove (201) into the first mixing chamber (101) under the action of centrifugal force, the stirring portion (202) is located below the premixing hole (203) and rotates with the distribution hopper (206) to stir the material discharged into the first mixing chamber (101).

2. A mixer for producing metal additives according to claim 1, characterized in that: The first mixing element (2) comprises: a mounting shaft (204), the mounting shaft (204) being rotatably disposed in the first mixing chamber (101) and extending in the up-down direction, the mounting shaft (204) having a radially penetrating mounting groove (205), the mounting shaft (204) penetrating the material distribution hopper (206) and being fixedly connected to the material distribution hopper (206); A stirring shaft (209), wherein the stirring shaft (209) is disposed through the mounting groove (205), and the outer periphery of the stirring shaft (209) has the stirring portion (202).

3. A mixer for producing metal additives according to claim 2, characterized in that: The first mixing bin (1) further comprises an annular groove (102) on the inner peripheral wall, a first tooth portion (103) on the lower side wall of the annular groove (102), and the end of the stirring shaft (209) comprises a circumferentially arranged second tooth portion (210), the second tooth portion (210) being meshed with the first tooth portion (103), and further comprising: A sealing swivel (3) is rotatably arranged at the notch of the annular groove (102) and is used to seal the annular groove (102). The end of the stirring shaft (209) passes through the sealing swivel (3). When the mounting shaft (204) rotates, it can drive the stirring shaft (209) and the sealing swivel (3) to rotate synchronously. The second tooth portion (210) drives the stirring shaft (209) to rotate circumferentially under the guidance of the first tooth portion (103) so as to stir the material with the help of the stirring portion (202).

4. A mixer for producing metal additives according to claim 2, characterized in that: The inner cavity of the material distribution hopper (206) is conical, and the cross-sectional area gradually decreases from top to bottom; the material distribution hopper (206) is provided with a plurality of partitions (208) arranged at intervals in the circumferential direction, and the material distribution trough (201) is formed between two adjacent partitions; The outer peripheral wall of the installation shaft (204) is provided with a plurality of circumferentially arranged clearance grooves (211), the partition plate (208) has a fixing portion (212) protruding toward the axial center side of the installation shaft (204), and the partition plate (208) can slide down along the axial direction of the installation shaft (204) into the material distribution hopper (206) so that the fixing portion (212) is engaged with the clearance groove (211).

5. A mixer for producing metal additives according to claim 2, characterized in that: A sliding cavity (213) is provided on the peripheral wall of the premixing hole (203), a baffle (214) and an elastic member (215) connected to the baffle (214) are slidably arranged in the sliding cavity (213), and the elastic member (215) is used to elastically push the baffle (214) so ​​that the baffle (214) slides and blocks the premixing hole (203).

6. A mixer for producing metal additives according to claim 2, characterized in that: Also includes: A feeding hopper (4), the feeding hopper (4) being arranged at the top of the first mixing bin (1), and a plurality of the feeding hoppers (4) being provided, and each of the feeding hoppers (4) being connected to a feeding pipe (401); A material distribution bin (402) is fixedly connected to a feed pipe, and a plurality of the material distribution bins (402) are provided. The material distribution bin (402) is located at the periphery of the material distribution hopper (206) and is rotatably matched with the material distribution hopper (206). An annular material distribution groove (403) is provided inside the material distribution bin (402), and the feed pipe (401) is connected to the annular material distribution groove (403) in a one-to-one correspondence.

7. A mixer for producing metal additives according to claim 1, characterized in that: The first mixing chamber (101) has a premixing outlet (104) at the bottom, and further comprises: a second mixing bin (5), the second mixing bin (5) being arranged below the first mixing bin (1), the second mixing bin (5) having a second mixing chamber (501), the second mixing chamber (501) being in communication with the first mixing chamber (101) via the premixing outlet (104); A second mixing piece (6), the second mixing piece (6) is rotatably disposed in the second mixing chamber (501) and is used to stir the material in the second mixing chamber (501).

8. A mixer for producing metal additives according to claim 7, characterized in that: The upper end of the second mixing element (6) has a bulk material assembly (601) corresponding to the premixing outlet (104) above and below, including a material throwing portion (603) and a material receiving hopper (602) connected to the upper side of the material throwing portion (603), and a material dropping channel for materials to fall is formed between the material throwing portion (603) and the material receiving hopper (602), and the material throwing portion (603) is used to disperse the materials flowing out of the material receiving hopper (602), and the material throwing portion (603) is conical, and the cross-sectional area of ​​the material throwing portion (603) gradually increases from top to bottom.

9. A mixer for producing metal additives according to claim 8, characterized in that: The second mixing element (6) comprises: a rotating shaft (605), the rotating shaft (605) being rotatably disposed in the second mixing chamber (501); a stirring member (606), the stirring member (606) being connected to the outer periphery of the rotating shaft (605) and being used for stirring the material in the second mixing chamber (501), the stirring member (606) having an upwardly protruding arc-shaped material pushing portion (608), the arc-shaped material pushing portion (608) facing the bulk material assembly (601); A scraper (607), wherein the scraper (607) is arranged at the outer end of the stirring member (606), and the scraper (607) is capable of contacting the inner peripheral wall of the second mixing chamber (501) to clean the material adhered to the cavity wall of the second mixing chamber (501).

10. A mixer for producing metal additives according to claim 9, characterized in that: Also includes: A valve (7), wherein the valve (7) is arranged at the premix outlet (104) and is used to open or close the premix outlet (104).

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