Preparation device of stainless steel powder

Abstract

The invention discloses a stainless steel powder preparation device, and belongs to the technical field of stainless steel powder.The stainless steel powder preparation device comprises a supporting assembly, the supporting assembly comprises a support, a grinding cylinder is arranged on the inner side of the support, a filter screen is arranged in the grinding cylinder, and a grinding mechanism is arranged between the inner side of the grinding cylinder and the support; the grinding mechanism comprises a grinding assembly and a lifting assembly, the grinding assembly comprises a rotating rod movably arranged in the grinding cylinder, a plurality of stirring blades are distributed at the end, close to the filter screen, of the rotating rod, a mounting cylinder is arranged on the rotating rod, a movable rod is movably arranged in the mounting cylinder, a plurality of second grinding balls are movably arranged on the movable rod, and a transmission gear is arranged on the rotating rod; mounting plates are arranged between the grinding cylinder and the support, a worm is rotationally connected between the mounting plates, the worm is connected with a rotating motor, the mounting plates are connected with a lifting assembly, and the grinding device has the advantages of efficient grinding, reciprocating lifting, full contact, convenience in replacement, wide applicability, simplicity, convenience and practicability.

Description

Technical Field

[0001] This invention relates to the field of stainless steel powder technology, and more specifically to an apparatus for preparing stainless steel powder. Background Technology

[0002] Stainless steel powder is a metallic stainless steel powder made from stainless steel alloys. The particles are regularly spherical in shape, with a density of 7.9 g / cm³. 3 The average particle size is <33μm. It has good corrosion resistance and durability. Its spherical particles can be positioned parallel to the coating surface and distributed throughout the coating, forming a shielding layer with excellent hiding power to block moisture. It can also be used in sandblasting machines to process some high-precision parts. Stainless steel powder uses low carbon steel as raw material. After atomization, it is ball-milled, sieved, and classified in the presence of a lubricant (stearic acid). It can be made into pigments or directly wet-ball-milled.

[0003] Most existing stainless steel powder preparation devices place grinding balls directly inside the grinding cylinder and stainless steel blocks inside the grinding cylinder. A stirring rod is used to drive the grinding balls and stainless steel blocks to contact and grind. Although the stainless steel blocks can be ground, the grinding efficiency is low. It is difficult for the grinding balls and stainless steel blocks to make sufficient contact, and the grinding balls tend to accumulate at the bottom of the grinding cylinder, reducing work efficiency.

[0004] Therefore, there is a need to provide an apparatus for preparing stainless steel powder, which aims to solve the above-mentioned problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a stainless steel powder preparation apparatus to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A stainless steel powder preparation apparatus includes a support assembly, which includes a bracket. A grinding cylinder is disposed inside the bracket, and a support ring connects the grinding cylinder and the bracket. The grinding cylinder has an opening and a discharge port at its bottom. A filter screen is disposed inside the grinding cylinder. A grinding mechanism is disposed between the inner side of the grinding cylinder and the bracket. The grinding mechanism includes a grinding component and a lifting component. The grinding component includes a rotating rod movably disposed inside the grinding cylinder. Several agitator blades are circumferentially distributed at the end of the rotating rod near the filter screen. Several mounting cylinders are disposed on the rotating rod. Movable rods are movably disposed on the mounting cylinders. Several second grinding balls are movably disposed on the movable rods. A transmission gear is disposed on the rotating rod. Mounting plates are symmetrically and movably disposed between the grinding cylinder and the bracket. A worm gear meshing with the transmission gear is rotatably connected between the mounting plates. One end of the worm gear is connected to a rotary motor disposed on the mounting plate. The mounting plate is connected to the lifting component.

[0007] As a further embodiment of the present invention, the lifting assembly includes: A rotating cam is mounted on a worm gear and movably abuts against the top of the support. A lifting plate, wherein the lifting plate is movably mounted on a bracket and rotatably connected to one end of a rotating rod that passes through the bracket; A lifting rod is symmetrically arranged at both ends of the mounting plate, and the outer end of the lifting rod passes through the bracket; A connecting plate, which is symmetrically and movably mounted on the support and located on both sides of the lifting plate, with both ends of the connecting plate connected to the lifting rod, and a spring connecting the connecting plate and the support; A skateboard, wherein the skateboards are symmetrically and slidably mounted on a support, and the ends of the skateboards that are close to each other are provided with a first inclined groove, and the ends of the skateboards that are far apart from each other are provided with a second inclined groove; The first sliding column is symmetrically arranged on both sides of the lifting plate and slides in cooperation with the first inclined groove. The second sliding column is symmetrically arranged at both ends of the connecting plate and connected to the connecting plate. The second sliding column is in sliding engagement with the second inclined groove.

[0008] As a further embodiment of the present invention, the first inclined groove and the second inclined groove are arranged in parallel, and the ends of the symmetrically arranged first inclined grooves that are close to each other are close to the support.

[0009] As a further aspect of the present invention, a plurality of first grinding balls are distributed circumferentially on the inner wall of the grinding cylinder.

[0010] As a further embodiment of the present invention, the agitator blade is provided with a plurality of arc-shaped protrusions, and the cross-section of the protrusions is set as semi-circular.

[0011] As a further aspect of the present invention, the thickness of the transmission gear is greater than the distance from the connecting plate to the bracket.

[0012] As a further embodiment of the present invention, a feed inlet is provided on one side of the support, and a guide plate is provided between the feed inlet and the opening of the grinding cylinder.

[0013] As a further embodiment of the present invention, the skateboard is configured as a C-shaped skateboard.

[0014] As a further embodiment of the present invention, the two ends of the movable rod are provided with elastic limiting blocks that abut against the second grinding ball.

[0015] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: This invention uses a rotating assembly to drive the second grinding ball and the agitator blade to rotate. Several arc-shaped protrusions on the agitator blade facilitate the grinding of the alloy by the second grinding ball in conjunction with the agitator blade, the arc-shaped protrusions, and the first grinding ball. A lifting assembly enables the reciprocating lifting of the rotating rod, movable rod, second grinding ball, agitator blade, and arc-shaped protrusions, ensuring sufficient contact between the alloy and each of these components for efficient grinding. The movable rod's interaction with the second grinding ball, and the ball's contact with the elastic abutment block, facilitate the replacement of the second grinding ball. Different specifications of grinding balls can be used, improving the device's practicality and avoiding the drawback of limited grinding ball specifications. The invention offers the advantages of efficient grinding, reciprocating lifting, sufficient contact, easy replacement, wide applicability, and simplicity.

[0016] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the invention.

[0018] Figure 2 This is a front view of an embodiment of the invention.

[0019] Figure 3 This is a top view of an embodiment of the invention.

[0020] Figure 4 This is a schematic diagram of the grinding mechanism in an embodiment of the invention.

[0021] Figure 5 This is a cross-sectional view of the grinding mechanism in an embodiment of the invention.

[0022] Figure 6 This is a schematic diagram of the structure of the grinding cylinder in an embodiment of the invention.

[0023] Reference numerals: 1-Support assembly, 101-Bracket, 102-Support ring, 103-Grinding cylinder, 104-Feed inlet, 105-Guide plate, 106-Filter screen, 107-First grinding ball, 108-Discharge port, 2-Grinding assembly, 201-Mounting plate, 202-Rotating motor, 203-Worm gear, 204-Transmission gear, 205-Rotor, 206-Agitator blade, 207-Protruding strip, 208-Mounting cylinder, 209-Moving rod, 210-Second grinding ball, 211-Elastic limit block, 3-Lifting assembly, 301-Lifting rod, 302-Spring, 303-Connecting plate, 304-Lifting plate, 305-Slide plate, 306-First inclined groove, 307-Second inclined groove, 308-First sliding column, 309-Second sliding column, 310-Rotating cam. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0026] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The apparatus for preparing stainless steel powder includes a support assembly 1, which includes a bracket 101. A grinding cylinder 103 is disposed inside the bracket 101. A support ring 102 connects the grinding cylinder 103 and the bracket 101. The grinding cylinder 103 has an opening and a discharge port 108 at its bottom. A filter screen 106 is disposed inside the grinding cylinder 103. A grinding mechanism is disposed between the inner side of the grinding cylinder 103 and the bracket 101. The grinding mechanism includes a grinding component 2 and a lifting component 3. The grinding component 2 includes a rotating rod 205 movably disposed inside the grinding cylinder 103, with the rotating rod 205 close to the filter screen. A plurality of agitator blades 206 are circumferentially distributed at one end of the net 106. A plurality of mounting cylinders 208 are provided on the rotating rod 205. A movable rod 209 is movably provided on the mounting cylinder 208. A plurality of second grinding balls 210 are movably provided on the movable rod 209. A transmission gear 204 is provided on the rotating rod 205. Mounting plates 201 are symmetrically and movably provided between the grinding cylinder 103 and the bracket 101. A worm gear 203 that meshes with the transmission gear 204 is rotatably connected between the mounting plates 201. One end of the worm gear 203 is connected to a rotary motor 202 provided on the mounting plate 201. The mounting plate 201 is connected to the lifting assembly 3.

[0027] In this embodiment, the rotary motor 202 drives the worm gear 203 to rotate. The worm gear 203 drives the rotating rod 205 to rotate by meshing with the transmission gear 204. The rotating rod 205 drives the second grinding ball 210 to rotate synchronously by driving the movable rod 209. Since the second grinding ball 210 is movably mounted on the movable rod 209, during the rotation of the second grinding ball 210 driven by the movable rod 209, the second grinding ball 210 will move axially on the movable rod 209 during contact with the alloy, which can meet the grinding requirements of the alloy at different positions. At the same time, the rotating rod 205 drives the stirring blade 206 to rotate, and the second grinding ball 210 moves axially on the stirring blade 206 during contact with the alloy. The alloy is ground by the paddle blades 206, and the stainless steel powder obtained is discharged through the filter screen 106 and the discharge port 108. The inner wall of the grinding cylinder 103 is circumferentially distributed with several first grinding balls 107. The agitator blades 206 are provided with several arc-shaped protrusions 207. The cross-section of the protrusions 207 is semi-circular. The support 101 is provided with a feed port 104 on one side. A guide plate 105 is provided between the feed port 104 and the opening of the grinding cylinder 103. The feed port 104 and the guide plate 105 facilitate the introduction of the alloy. The movable rod 209 is provided with elastic limiting blocks 211 at both ends that abut against the second grinding balls 210. The rotating assembly drives the second grinding ball 210 and the stirring blade 206 to rotate. The several arc-shaped protrusions 207 on the stirring blade 206 facilitate the grinding of the alloy by the second grinding ball 210 in conjunction with the stirring blade 206, the arc-shaped protrusions 207, and the first grinding ball 107. The lifting assembly enables the reciprocating lifting of the rotating rod 205, the movable rod 209, the second grinding ball 210, the stirring blade 206, and the arc-shaped protrusions 207, allowing the alloy to grind against the first grinding ball 107, the second grinding ball 210, and the first grinding ball 107 respectively. The grinding ball 210, the stirring blade 206, and the arc-shaped protrusion 207 make full contact to achieve efficient grinding. The movable rod 209 and the second grinding ball 210 are in active cooperation, and the second grinding ball 210 and the elastic abutment block 211 are in active contact, which makes it easy to replace the second grinding ball 210. Different specifications of second grinding balls 210 can be used to improve the practicality of the device and avoid the disadvantage of the single specification of the second grinding ball 210. It has the effects of efficient grinding, reciprocating lifting, full contact, easy replacement, wide applicability and simple and practical use.

[0028] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The lifting assembly 3 includes a rotary cam 310, which is mounted on the worm gear 203 and movably abuts against the top of the bracket 101; a lifting plate 304, which is movably mounted on the bracket 101 and rotatably connected to one end of the rotating rod 205 that passes through the bracket 101; a lifting rod 301, which is symmetrically arranged at both ends of the mounting plate 201, with its outer end passing through the bracket 101; and a connecting plate 303, which is symmetrically and movably arranged on the bracket 101 and located on both sides of the lifting plate 304, with both ends of the connecting plate 303 connected to the lifting rod 301. A spring 302 connects the connecting plate 303 to the bracket 101; a sliding plate 305 is symmetrically and slidably disposed on the bracket 101, with a first inclined groove 306 at one end of the sliding plates 305 that is close to each other, and a second inclined groove 307 at the other end of the sliding plates 305 that is far from each other; a first sliding column 308 is symmetrically disposed on both sides of the lifting plate 304 and slidably engaged with the first inclined groove 306; a second sliding column 309 is symmetrically disposed at both ends of the connecting plate 303 and connected to the connecting plate 303, and slidably engaged with the second inclined groove 307.

[0029] In this embodiment, initially, the rotating rod 205 is at its lowest point, the spring 302 is at its original length, the first sliding column 308 is located at the bottom end of the first inclined groove 306, the second sliding column 309 is located at the top end of the second inclined groove 307, the nearest end of the rotating cam 310 is in movable contact with the top of the bracket 101, the rotary motor 202 drives the worm gear 203 to rotate, and the worm gear 203 drives the rotating cam 310 to rotate. As the farthest end of the rotating cam 310 approaches the bracket 101, the rotating cam 310 pushes the worm gear 203 downward, and the worm gear 203 drives the mounting plate 201 downward. The mounting plate 201 moves downward via the lifting rod 301, causing the connecting plate 303 to move downward. The spring 302 contracts under pressure. The connecting plate 303, through the sliding engagement of the second sliding column 309 and the second inclined groove 307, pushes the symmetrically arranged sliding plates 305 closer together. The sliding plates 305, through the sliding engagement of the first inclined groove 306 and the first sliding column 308, drive the lifting plate 304 upward. The lifting plate 304 drives the rotating rod 205 upward synchronously, enabling the upward movement of the movable rod 209, the second grinding ball 210, the agitator blade 206, and the arc-shaped protrusion 207. This is achieved at the top of the rotating cam 310. As the distal end moves away from the support 101, the spring 302 extends and pushes the connecting plate 303 upward. The connecting plate 303, through the sliding engagement of the second sliding column 309 and the second inclined groove 307, pushes the symmetrically arranged sliding plates 305 away from each other. The sliding plates 305, through the sliding engagement of the first inclined groove 306 and the first sliding column 308, drive the lifting plate 304 downward. The lifting plate 304 drives the rotating rod 205 downward synchronously. This allows the movable rod 209, the second grinding ball 210, the stirring blade 206, and the arc-shaped protrusion 207 to move downward, and also allows the rotating rod 205 and the movable rod 205 to move downward. 9. The reciprocating lifting and lowering of the second grinding ball 210, the stirring blade 206, and the arc-shaped protrusion 207 facilitates full contact between the alloy and the first grinding ball 107, the second grinding ball 210, the stirring blade 206, and the arc-shaped protrusion 207, respectively, to achieve efficient grinding. The first inclined groove 306 and the second inclined groove 307 are arranged in parallel, with one end of the first inclined groove 306 close to the support 101. The thickness of the transmission gear 204 is greater than the distance from the connecting plate 303 to the support 101, which ensures that the transmission gear 204 and the worm gear 203 are always in a meshing state.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An apparatus for preparing stainless steel powder, comprising a support assembly, the support assembly including a bracket, a grinding cylinder disposed inside the bracket, and a support ring connecting the grinding cylinder and the bracket, characterized in that, The grinding cylinder has an opening and a discharge port at its bottom. A filter screen is installed inside the grinding cylinder. A grinding mechanism is located between the inner side of the grinding cylinder and the support frame. The grinding mechanism includes a grinding assembly and a lifting assembly. The grinding assembly includes a rotating rod movably disposed inside the grinding cylinder. Several agitator blades are circumferentially distributed at the end of the rotating rod near the filter screen. Several mounting cylinders are mounted on the rotating rod, and movable rods are movably mounted on the mounting cylinders. Several second grinding balls are movably mounted on the movable rods. A transmission gear is provided on the rotating rod. The grinding cylinder and the support frame are aligned... The device is equipped with mounting plates, and a worm gear meshing with a transmission gear is rotatably connected between the mounting plates. One end of the worm gear is connected to a rotary motor mounted on the mounting plates. The mounting plates are connected to a lifting assembly. The rotary motor drives the worm gear to rotate, and the worm gear drives a rotating rod to rotate by meshing with the transmission gear. The rotating rod drives a second grinding ball to rotate synchronously by driving a movable rod. At the same time, the rotating rod drives a stirring blade to rotate. The second grinding ball grinds the alloy by cooperating with the stirring blade. The stainless steel powder obtained from the grinding is discharged through a filter screen and a discharge port.

2. The apparatus for preparing stainless steel powder according to claim 1, characterized in that, The lifting assembly includes: A rotating cam is mounted on a worm gear and movably abuts against the top of the support. A lifting plate, wherein the lifting plate is movably mounted on a bracket and rotatably connected to one end of a rotating rod that passes through the bracket; A lifting rod is symmetrically arranged at both ends of the mounting plate, and the outer end of the lifting rod passes through the bracket; A connecting plate, which is symmetrically and movably mounted on the support and located on both sides of the lifting plate, with both ends of the connecting plate connected to the lifting rod, and a spring connecting the connecting plate and the support; A skateboard, wherein the skateboards are symmetrically and slidably mounted on a support, and the ends of the skateboards that are close to each other are provided with a first inclined groove, and the ends of the skateboards that are far apart from each other are provided with a second inclined groove; The first sliding column is symmetrically arranged on both sides of the lifting plate and slides in cooperation with the first inclined groove. The second sliding column is symmetrically arranged at both ends of the connecting plate and connected to the connecting plate. The second sliding column is in sliding engagement with the second inclined groove.

3. The apparatus for preparing stainless steel powder according to claim 2, characterized in that, The first and second inclined grooves are arranged in parallel, and the ends of the symmetrically arranged first inclined grooves that are close to each other are close to the support.

4. The apparatus for preparing stainless steel powder according to claim 1, characterized in that, The inner wall of the grinding cylinder has several first grinding balls distributed circumferentially.

5. The apparatus for preparing stainless steel powder according to claim 1, characterized in that, The agitator blade is provided with several arc-shaped protrusions, and the cross-section of the protrusions is set as semi-circular.

6. The apparatus for preparing stainless steel powder according to claim 2, characterized in that, The thickness of the transmission gear is greater than the distance from the connecting plate to the bracket.

7. The apparatus for preparing stainless steel powder according to claim 1, characterized in that, The support has a feed inlet on one side, and a guide plate is provided between the feed inlet and the opening of the grinding cylinder.

8. The apparatus for preparing stainless steel powder according to claim 2, characterized in that, The skateboard is designed as a C-shaped skateboard.

9. The apparatus for preparing stainless steel powder according to claim 2, characterized in that, The movable rod is provided with elastic limiting blocks at both ends that abut against the second grinding ball.

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