A modular mixing and kneading device for nickel-aluminum powder recycling

Abstract

The utility model discloses a modularization mixing kneading device for nickel aluminium powder material recycling, including kneading machine body and kneading paddle, kneading paddle includes the kneading part of middle part and installs respectively at the spline sleeve and hollow axle rod of kneading part both ends, stroke conduit, the outer wall of hollow axle rod is fixedly connected with kneading machine body and is sleeved in, and the outer wall of hollow axle rod is rotatably connected with movable piston through sealing bearing, and hollow axle rod passes through movable piston and stroke conduit sliding seal cooperation, the end of hollow axle rod outer wall still is provided with arc circulating slide groove, and the inner side wall of stroke conduit still is fixedly connected with the sliding block, and stroke conduit passes through the sliding block and arc circulating slide groove sliding. The utility model provides a modularization mixing kneading device for nickel aluminium powder material recycling, and the clearance type compound motion of " rotation + axial swing " of driving kneading paddle is periodically carried out in kneading machine body, and the turning, extrusion and kneading effect of material are enhanced, and the agglomerated powder is effectively scattered.

Description

Technical Field

[0001] This utility model relates to the field of powder processing technology, and in particular to a modular mixing and kneading device for the reuse of nickel-aluminum powder. Background Technology

[0002] In the production, processing, and recycling of nickel-aluminum based materials (such as nickel-aluminum coatings, self-propagating high-temperature synthetic materials, etc.), a large amount of waste or re-proportioning nickel-aluminum metal powder is generated. The reuse of these powders usually requires an efficient and uniform mixing and kneading process to eliminate agglomeration, ensure uniform composition, and may involve the uniform dispersion of trace additives (such as binders and dispersants).

[0003] While conventional kneaders can mix powerfully, their blades only rotate, which can cause powder to accumulate in dead zones, resulting in poor mixing uniformity. Utility Model Content

[0004] Therefore, it is necessary to provide a modular mixing and kneading device for the reuse of nickel-aluminum powder to address the above-mentioned technical problems. This device can realize the composite motion of "rotation + periodic oscillation" of the blades and combine it with a retractable pneumatic scraper and a modular cleaning structure to solve the problems of uneven mixing and difficult cleaning of sticky materials.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A modular mixing and kneading device for the recycling of nickel-aluminum powder includes:

[0007] The kneader body and kneading blades are provided. A sliding bearing is slidably mounted on the outer wall of the kneading blades, and a rotating bearing is rotatably mounted on the outer wall of the sliding bearing. The rotating bearing is rotatably connected to the kneader body. The sliding bearing, the kneading blades, and the sliding bearing and the rotating bearing are all sealed structures. The kneader body also includes:

[0008] The drive mechanism includes a drive motor and a gearbox. The output end of the drive motor is fixedly connected to one of the gears in the gearbox. Splined shafts are fixedly connected to the middle of both gears in the gearbox. The kneading blades are slidably engaged with the splined shafts to drive the kneading blades to rotate relative to the kneader body.

[0009] The kneading blade includes a kneading part located in the middle and a splined sleeve and a hollow shaft respectively installed at both ends of the kneading part. The splined sleeve is slidably engaged with the splined shaft, and both the splined sleeve and the hollow shaft extend through the kneader body to the outside.

[0010] The travel guide tube is fitted onto the outer wall of the hollow shaft and is fixedly connected to the kneader body;

[0011] The hollow shaft has a movable piston rotatably connected to its outer wall via a sealed bearing, and the hollow shaft is in sliding sealed engagement with the stroke guide via the movable piston.

[0012] The hollow shaft is also provided with an arc-shaped circulating groove at the end of its outer wall, and a slider is fixedly connected to the inner wall of the stroke guide. The stroke guide drives the kneading blade to oscillate periodically within the kneader body by sliding the slider with the arc-shaped circulating groove.

[0013] A scraper is attached to the outer edge of the kneading part. The scraper and the kneading part are magnetically attached to each other, and the contact surface is a beveled structure.

[0014] Furthermore, the inner wall of the kneading part has a cavity, which is connected to the hollow shaft.

[0015] Furthermore, a sliding rod is fixedly connected to the inner wall of the scraper. The sliding rod passes through the inner wall of the kneading part and is connected to a columnar rubber that slides and seals with the cavity of the inner wall of the kneading part. The columnar rubber and the kneading part are elastically engaged by a spring.

[0016] Furthermore, a hydraulic push rod is fixedly connected to the end of the kneader body, and a push plate is fixedly connected to the output end of the hydraulic push rod. Two guide rods are fixedly connected to the side wall of the push plate, and a push piston is fixedly connected to one end of each guide rod.

[0017] Furthermore, when the push piston slides within the stroke guide, it can deliver gas from the stroke guide into the cavity to push the scraper to extend and retract relative to the kneading part.

[0018] Furthermore, the arc-shaped circulating chute includes planar chutes at both ends and an inclined chute in the middle. When the slider slides in the inclined chute, it drives the kneading blade to slide horizontally. The slider is in clearance fit with the arc-shaped circulating chute.

[0019] Furthermore, the side walls and top walls of the kneader body are fitted with cleaning plates, which can be opened to directly clean the kneader body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model provides a modular mixing and kneading device for the reuse of nickel-aluminum powder:

[0022] 1. The drive motor drives two splined shafts to rotate synchronously in opposite directions via a gearbox. This drives the kneading part of the kneading blade to rotate around its own axis within the kneader body, generating basic stirring and shearing effects on the material. Simultaneously, the slider, fixed to the travel guide, rotates along with the hollow shaft (i.e., with the kneading blade). When the slider slides on the inclined section of the curved circulating chute, it generates an axial thrust on the hollow shaft (and the entire kneading blade). This axial thrust pushes the entire kneading blade horizontally along the splined shaft axis. When the slider slides to the planar chute section, no axial thrust is generated, and the kneading blade only rotates. This drives the kneading blade to periodically perform an intermittent compound motion of "rotation + axial oscillation" within the kneader body, enhancing the material's agitation, compression, and kneading effects, effectively breaking up agglomerated powder.

[0023] 2. The hydraulic pusher pushes the top piston into the stroke guide, and the air in the guide is forced into the cavity of the kneading part. The air pressure in the cavity increases, which pushes the columnar rubber to move against the elastic force of the spring. Then, through the slide rod, it pushes the scraper to extend outward, so that it can more tightly scrape the inner wall of the kneader body to prevent the material from sticking to the wall. After completion, the hydraulic pusher is retracted and the top piston exits the stroke guide, realizing controllable dynamic cleaning of the inner wall. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model;

[0025] Figure 2 A three-dimensional structural diagram of a modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model;

[0026] Figure 3 A top view of a modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model;

[0027] Figure 4 A schematic diagram of the kneading blade structure of a modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model;

[0028] Figure 5 A schematic diagram of the hollow shaft structure of a modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model;

[0029] Figure 6 A schematic diagram of the spline sleeve structure of a modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model;

[0030] Figure 7This utility model provides a schematic diagram of the kneading section and scraper of a modular mixing and kneading device for the reuse of nickel-aluminum powder.

[0031] The markings in the diagram are explained as follows:

[0032] 1. Kneader body; 11. Cleaning plate;

[0033] 2. Kneading blade; 21. Kneading part; 22. Spline sleeve; 23. Hollow shaft; 24. Movable piston; 25. Scraper; 26. Slide rod; 27. Columnar rubber; 28. Spring; 29. ​​Cavity;

[0034] 3. Drive mechanism; 31. Drive motor; 32. Gearbox; 33. Splined shaft;

[0035] 4. Travel guide tube; 41. Slider;

[0036] 5. Hydraulic push rod; 51. Push plate; 52. Guide rod; 53. Push piston;

[0037] 6. Arc-shaped circulating chute; 61. Planar chute; 62. Inclined chute. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0039] Example 1

[0040] Please refer to Figure 1-7 A modular mixing and kneading device for the recycling of nickel-aluminum powder, comprising:

[0041] The kneader body 1 and kneading blades 2 are provided. A sliding bearing is slidably mounted on the outer wall of the kneading blades 2, and a rotating bearing is rotatably mounted on the outer wall of the sliding bearing. The rotating bearing is rotatably connected to the kneader body 1. The sliding bearing, the kneading blade, and the sliding bearing and the rotating bearing are all sealed structures. The kneader body 1 also includes:

[0042] The drive mechanism 3 includes a drive motor 31 and a gearbox 32. The output end of the drive motor 31 is fixedly connected to one of the gears in the gearbox 32. Splined shafts 33 are fixedly connected to the middle of the two gears in the gearbox 32. The kneading blade 2 is slidably engaged with the splined shaft 33 to drive the kneading blade 2 to rotate relative to the kneader body 1.

[0043] Cleaning plates 11 are attached to both the side and top walls of the kneader body 1. The kneader body 1 can be cleaned directly by opening the cleaning plates 11. The top of the kneader body 1 has a feed inlet and the bottom has a discharge outlet (with a valve plate to form a closed state).

[0044] The kneading blade 2 includes a kneading part 21 located in the middle and a splined sleeve 22 and a hollow shaft 23 respectively installed at both ends of the kneading part 21. The splined sleeve 22 is slidably engaged with the splined shaft 33. Both the splined sleeve 22 and the hollow shaft 23 extend through the kneader body 1 to the outside. The splined sleeve 22 and the hollow shaft 23 are rotatably engaged with the kneader body 1. Since the splined sleeve 22 at the end of the kneading blade 2 is slidably engaged with the splined shaft 33, the rotation of the splined shaft 33 can not only drive the blade to rotate, but also allow the blade to be displaced in the axial direction.

[0045] The travel guide 4 is fitted onto the outer wall of the hollow shaft 23 and is fixedly connected to the kneader body 1;

[0046] The outer wall of the hollow shaft 23 is rotatably connected to the movable piston 24 through a sealed bearing, and the hollow shaft 23 is in sliding sealing fit with the stroke guide 4 through the movable piston 24;

[0047] The hollow shaft 23 is also provided with an arc-shaped circulating groove 6 at the end of its outer wall. The inner wall of the stroke guide 4 is also fixedly connected with a slider 41. The stroke guide 4 drives the kneading blade 2 to oscillate periodically in the kneader body 1 by sliding the slider 41 with the arc-shaped circulating groove 6.

[0048] The arc-shaped circulating grooves 6 on the two kneading blades 2 are symmetrically arranged to achieve synchronous oscillation of the two sets of kneading blades 2.

[0049] A scraper 25 is snapped onto the outer edge of the kneading part 21. The scraper 25 and the kneading part 21 are magnetically attached to each other, and the contact surface is a beveled structure. Magnets that can attract each other are installed on the scraper 25 and the kneading part 21, thereby forming an attraction force. Specifically, two scrapers 25 are installed on each kneading part 21, and the two scrapers 25 cover the bottom wall of the entire kneading machine body 1.

[0050] Example 2

[0051] The modular mixing and kneading device for the reuse of nickel-aluminum powder provided in Embodiment 1 is further optimized, wherein the inner wall of the kneading part 21 has a cavity 29, and the cavity 29 is connected to the hollow shaft 23.

[0052] A slide rod 26 is also fixedly connected to the inner wall of the scraper 25. The slide rod 26 passes through the inner wall of the kneading part 21 and is connected to a columnar rubber 27 that slides and seals with the cavity 29 of the inner wall of the kneading part 21. The columnar rubber 27 and the kneading part 21 are elastically engaged by a spring 28.

[0053] The arc-shaped circulating slide 6 includes a planar slide 61 at both ends and an inclined slide 62 in the middle. When the slider 41 slides in the inclined slide 62, it drives the kneading blade 2 to slide horizontally. The slider 41 is in clearance fit with the arc-shaped circulating slide 6.

[0054] When the spline shaft 33 drives the hollow shaft 23 to rotate, the blade only rotates when the slider 41 is in the planar groove 61. When the slider 41 enters the inclined groove 62, the inclined structure forces the hollow shaft 23 and the entire kneading blade 2 to slide horizontally along the axial direction because the slider 41 is radially limited by the stroke guide 4. Thus, the composite three-dimensional motion of the blade "rotating and oscillating back and forth along the axial direction" is realized, and the mixing dead angle is completely eliminated.

[0055] Example 3

[0056] The modular mixing and kneading device for the reuse of nickel-aluminum powder provided in Embodiment 1 or 2 is further optimized. A hydraulic push rod 5 is fixedly connected to the end of the kneader body 1. A push plate 51 is fixedly connected to the output end of the hydraulic push rod 5. Two guide rods 52 are fixedly connected to the side wall of the push plate 51. A push piston 53 is fixedly connected to one end of the guide rod 52.

[0057] When the push piston 53 slides in the stroke guide 4, it can deliver the gas in the stroke guide 4 to the cavity 29 to push the scraper 25 to extend and retract relative to the kneading part 21.

[0058] When it is necessary to clean the inner wall or enhance the kneading cutting force, the hydraulic push rod 5 extends, pushing the push piston 53 to slide forward in the stroke guide 4, compressing the air in the stroke guide 4. The compressed gas enters the cavity 29 through the connected hollow shaft 23. The gas pressure overcomes the elastic force of the spring 28, pushing the columnar rubber 27 to move outward. The columnar rubber 27 pushes the scraper out from the edge of the kneading part 21 through the slide rod 26. When the hydraulic push rod 5 retracts, the air pressure is released, the spring 28 rebounds and pulls the scraper back, and the magnetic inclined surface re-fits and locks.

[0059] The modular mixing and kneading device for the reuse of nickel-aluminum powder provided by this utility model is used as follows: The drive motor 31 is started, and power is transmitted to the splined shaft 33 via the gearbox 32, driving the kneading blades 2 to rotate. During this process, the slider 41 slides repeatedly within the arc-shaped circulating groove, causing the kneading blades 2 to automatically and periodically oscillate axially while rotating, performing three-dimensional flipping and shearing of the powder.

[0060] When the kneading process reaches the middle or late stage, or when the powder begins to adhere to the machine wall, activate the hydraulic push rod 5. The push piston 53 compresses the gas in the stroke guide 4, which then enters the cavity 29 via the hollow shaft 23, pushing the scraper outwards. At this time, the blades performing a compound motion, carrying the extended scraper, forcefully scrape the inner wall and corners of the machine. After scraping is complete, control the hydraulic push rod 5 to retract, and the scraper returns to its original position under the action of the spring 28.

[0061] After kneading is completed, the bottom discharge port is opened for unloading. After the batch production is completed, the top and side cleaning plates 11 are opened in sequence to expose the internal space of the kneader body 1. The machine can then be directly rinsed with a high-pressure water gun or manually scraped for cleaning, which is extremely convenient.

[0062] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0063] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A modular mixing and kneading device for the recycling of nickel-aluminum powder, comprising a kneader body (1) and kneading blades (2), wherein a sliding bearing is slidably mounted on the outer wall of the kneading blades (2), and a rotating bearing is rotatably mounted on the outer wall of the sliding bearing, the rotating bearing being rotatably connected to the kneader body (1), and the sliding bearing and the kneading blades, as well as the sliding bearing and the rotating bearing, are all sealed structures, characterized in that, It includes: The drive mechanism (3) includes a drive motor (31) and a gearbox (32). The output end of the drive motor (31) is fixedly connected to one of the gears in the gearbox (32). Splined shafts (33) are fixedly connected to the middle of the two gears in the gearbox (32). The kneading blade (2) is slidably engaged with the splined shaft (33) to drive the kneading blade (2) to rotate relative to the kneader body (1). The kneading blade (2) includes a kneading part (21) located in the middle and a splined sleeve (22) and a hollow shaft (23) respectively installed at both ends of the kneading part (21). The splined sleeve (22) is slidably engaged with the splined shaft (33). The splined sleeve (22) and the hollow shaft (23) both extend through the kneader body (1) to the outside. The travel guide (4) is fitted onto the outer wall of the hollow shaft (23) and fixedly connected to the kneader body (1); The outer wall of the hollow shaft (23) is rotatably connected to a movable piston (24) through a sealed bearing. The hollow shaft (23) is in sliding and sealed cooperation with the stroke guide (4) through the movable piston (24). The hollow shaft (23) is also provided with an arc-shaped circulating groove (6) at the end of its outer wall. The inner side wall of the stroke guide (4) is also fixedly connected with a slider (41). The stroke guide (4) slides with the arc-shaped circulating groove (6) through the slider (41) to drive the kneading blade (2) to oscillate periodically in the kneader body (1). A scraper (25) is attached to the outer edge of the kneading part (21). The scraper (25) and the kneading part (21) are magnetically attached to each other, and the attachment surface is a sloping structure.

2. The modular mixing and kneading device for the reuse of nickel-aluminum powder according to claim 1, characterized in that, The inner wall of the kneading part (21) has a cavity (29), which is connected to the hollow shaft (23).

3. A modular mixing and kneading device for the reuse of nickel-aluminum powder according to claim 2, characterized in that, The inner wall of the scraper (25) is also fixedly connected to a slide rod (26). The slide rod (26) extends through the inner wall of the kneading part (21) and is connected to a columnar rubber (27) that slides and seals with the cavity (29) of the inner wall of the kneading part (21). The columnar rubber (27) and the kneading part (21) are elastically engaged by a spring (28).

4. A modular mixing and kneading device for the reuse of nickel-aluminum powder according to claim 3, characterized in that, The end of the kneader body (1) is also fixedly connected to a hydraulic push rod (5), the output end of the hydraulic push rod (5) is fixedly connected to a push plate (51), the side wall of the push plate (51) is fixedly connected to two guide rods (52), and one end of the guide rod (52) is fixedly connected to a push piston (53).

5. A modular mixing and kneading device for the reuse of nickel-aluminum powder according to claim 4, characterized in that, When the push piston (53) slides in the stroke guide (4), it can deliver the gas in the stroke guide (4) to the cavity (29) to push the scraper (25) to extend and retract relative to the kneading part (21).

6. A modular mixing and kneading device for the reuse of nickel-aluminum powder according to claim 1, characterized in that, The arc-shaped circulating chute (6) includes a planar chute (61) at both ends and an inclined chute (62) in the middle. When the slider (41) slides in the inclined chute (62), it drives the kneading blade (2) to slide horizontally. The slider (41) is in clearance fit with the arc-shaped circulating chute (6).

7. A modular mixing and kneading device for the reuse of nickel-aluminum powder according to claim 1, characterized in that, The side walls and top walls of the kneader body (1) are fitted with cleaning plates (11), and the kneader body (1) can be cleaned directly by opening the cleaning plates (11).

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