A powder metallurgical ultrasonic cleaning machine

Abstract

This utility model discloses an ultrasonic cleaning machine for powder metallurgy, comprising at least a vertical cleaning tank that can swing and tilt back and forth. The tank includes a circular outer cylinder and a polygonal inner cylinder disposed within the inner cavity of the outer cylinder, forming a cavity for ultrasonic transducers between the outer and inner cylinders. A plurality of ultrasonic transducers are disposed on the periphery of the outer wall of the inner cylinder, and these transducers are evenly spaced in both the circumferential and vertical directions. This ultrasonic cleaning machine for powder metallurgy achieves high quality and efficiency in removing impurities from superhard materials and superhard micro-powder materials.

Description

Technical Field

[0001] This utility model relates to the field of superhard materials and superhard material micro powder production technology, specifically to a powder metallurgy ultrasonic cleaning machine. Background Technology

[0002] Superhard materials and superhard material micropowders are a new type of superhard and ultrafine abrasives formed through special processing. They are ideal raw materials for grinding and polishing high-hardness materials such as cemented carbide, ceramics, gemstones, and optical glass. Diamond products, also known as superhard material products, are tools and components made from diamond or superhard materials, with a wide range of applications. Diamond micropowder and its products are widely used in the automotive, machinery, electronics, aerospace, optical instrument, glass, ceramic, petroleum, and geological industries. With the continuous development of technology and products, the application fields of diamond micropowder and its products are constantly expanding. With the continuous development of technology and products, the demand for superhard abrasives has increased significantly in recent years, and the quality requirements are becoming increasingly stringent.

[0003] In the production process of superhard materials and superhard material micro powders, one step requires the use of ultrasound to remove impurities, achieving high-quality finished products. For example, Chinese patent document ZL2023219706196, entitled "Ultrasonic Device for Diamond Impurity Removal," includes a cleaning tank with several ultrasonic generators at the bottom, conveyor plates on both sides, a mesh frame on one side of the conveyor plate, a slide rail above the cleaning tank with a slider, a first hydraulic cylinder at the lower end of the slider, and a detachable connection between the first hydraulic cylinder and the mesh frame. Symmetrical sliding tracks for moving the mesh frame are provided on the inner wall of the cleaning tank, and a rinsing device is located at the conveyor plate on the other side of the cleaning tank.

[0004] The drawbacks of the above-mentioned device are that the bottom area of ​​the cleaning tank is too small, which prevents the installation of a large number of ultrasonic generators, resulting in poor cleaning effect and poor impurity removal quality; in addition, the material in the cleaning tank is distributed along the height, and the ultrasonic device for diamond impurity removal has a strong cleaning effect on diamonds at the bottom of the cleaning tank, but a poor cleaning effect on diamonds at slightly higher positions. Furthermore, the ultrasonic device for diamond impurity removal lacks a stirring device, which will lead to its low production efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a powder metallurgy ultrasonic cleaning machine that improves the quality and efficiency of impurity removal from superhard materials and superhard material micro powders.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: An ultrasonic cleaning machine for powder metallurgy includes at least a vertical ultrasonic cleaning tank that can swing back and forth and tilt. The tank includes a circular outer cylinder and a polygonal inner cylinder disposed in the inner cavity of the outer cylinder, so that a cavity for ultrasonic transducers is formed between the outer cylinder and the inner cylinder. A plurality of ultrasonic transducers are disposed on the periphery of the outer wall of the inner cylinder, and the plurality of ultrasonic transducers are evenly spaced in the circumferential and height directions.

[0007] This utility model discloses an ultrasonic cleaning machine for powder metallurgy, used for ultrasonic cleaning of superhard materials and superhard material micro powders. Ultrasonic transducers are evenly spaced circumferentially around the outer periphery of the inner cylinder, generating sound waves to uniformly and non-agglomeratedly clean the superhard materials and superhard material micro powders within the inner cylinder. Furthermore, the evenly spaced ultrasonic transducers along the height direction allow for the deployment of multiple rows of transducers, enabling the number of transducers to be adjusted based on the amount of material, thereby reducing water consumption. This achieves multi-purpose functionality, allowing for cleaning of superhard materials and superhard material micro powders within the inner cylinder over a wide area, avoiding significant differences in cleaning effectiveness along the height direction. The ultrasonic cleaning machine for powder metallurgy offers a large cleaning range, wide coverage, and excellent cleaning results.

[0008] As an improvement to the above technical solution, the inner cylinder is a quadrilateral, hexagonal, or octagonal structure, and the ultrasonic transducers are spaced apart and arranged in multiple rows on the periphery of the quadrilateral, hexagonal, or octagonal structure, with multiple rows arranged in the height direction and multiple rows arranged in the periphery direction.

[0009] As an improvement to the above technical solution, the top ends of the inner cylinder and the outer cylinder are flush, and the top ends of the inner cylinder and the outer cylinder are provided with a cover to cover the cavity between the inner cylinder and the outer cylinder. The cover is provided with a water outlet on one side.

[0010] As an improvement to the above technical solution, the top of the inner cylinder is provided with a support plate, a stirring reduction motor provided on the support plate, a stirring rod for stirring provided in the inner cylinder, and stirring blades provided at the end of the stirring rod; the output shaft of the stirring reduction motor is connected to the stirring rod to drive the stirring rod to rotate and stir.

[0011] As an improvement to the above technical solution, the reducer of the stirring reducer motor is an RV worm gear reducer motor. The output shaft of the stirring reducer motor and the stirring rod are integrated into a hexagonal rod structure. The top of the hexagonal stirring rod is a cylindrical head. The worm gear of the stirring reducer motor has a hexagonal hole through which the stirring rod slides up and down. Several support rods are provided on the housing of the stirring reducer motor, and cylinders are fixedly installed at the top of the support rods. The lower end of the piston rod of the cylinder is connected to an upper connecting plate. Several connecting rods are connected below the upper connecting plate. The bottom end of the connecting rods is fixedly connected to a lower connecting plate. The central through hole of the lower connecting plate is rotatably connected to the stirring rod through a bearing to pull the stirring rod up and down.

[0012] As an improvement to the above technical solution, the support plate is provided with an external water inlet hose for the water inlet pipe, and a level gauge mounting hole is provided for fixing the level gauge. The water inlet pipe is equipped with a flow meter.

[0013] As an improvement to the above technical solution, the powder metallurgy ultrasonic cleaning machine also includes a frame, a tile frame set on the frame and a rotating shaft passing through the tile frame, and the cylinder is fixedly connected to the transmission shaft; a drive reduction motor is set on one side of the frame, and the transmission shaft is connected to the output shaft of the drive reduction motor; the drive reduction motor is an RV worm gear reduction motor.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are: This utility model discloses an ultrasonic cleaning machine for powder metallurgy. The cylinder body consists of an inner cylinder and an outer cylinder, with an ultrasonic transducer forming between the outer cylinder and the inner cylinder. Within this cavity, a plurality of ultrasonic transducers are arranged on the periphery of the outer wall of the inner cylinder, and the ultrasonic transducers are evenly spaced in the circumferential and height directions. Diamond micro powder is placed inside the inner cylinder, and water is introduced through the water inlet pipe on the support plate. The ultrasonic transducers on the outer wall of the inner cylinder vibrate and clean the ultrahard material and ultrahard material micro powder inside the inner cylinder.

[0015] When the cylinder of this invention is working, it can raise or lower the stirring rod. At the start of operation, the cylinder raises the stirring rod to start stirring in the water part, which requires less starting force and makes it easy to start the stirring rod. Then the cylinder lowers the stirring rod to enter the material part, causing the material to tumble up and down, which better promotes the cleaning effect.

[0016] After cleaning, the drive reduction motor on the frame can drive the cylinder to rotate and pour out the cleaning water from the water outlet. After the cleaning water is poured out, the superhard material and superhard material powder are poured out, and the entire cleaning process is completed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the cover plate and its supporting plate; Figure 3 This is a schematic diagram of the connection structure of the cylinder, stirring rod, and worm gear reducer. Detailed Implementation

[0019] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art to all other embodiments obtained without creative effort should be included within the protection scope of the present utility model.

[0020] As is well known to those skilled in the art, the core component of an ultrasonic transducer is a piezoelectric crystal. A piezoelectric crystal can deform under pressure, causing it to polarize and resulting in positive and negative bound charges on its surface; this effect is known as the piezoelectric effect. The piezoelectric effect is reversible; that is, applying a voltage to the piezoelectric crystal causes deformation, and this inverse piezoelectric effect can generate ultrasonic waves.

[0021] like Figure 1 , 2 As shown in Figure 3, the powder metallurgy ultrasonic cleaning machine of this utility model includes at least a vertical cleaning tank that can swing and tilt back and forth. During cleaning, the tank is in a vertical state, and after cleaning, the tank can be tilted to pour out the cleaning water and the cleaned material. The tank includes a circular outer cylinder 9 and a polygonal inner cylinder 1 disposed within the cavity of the outer cylinder 9, forming a cavity for ultrasonic transducers between the outer cylinder 9 and the inner cylinder 1. A plurality of ultrasonic transducers 2 are disposed on the periphery of the outer wall of the inner cylinder 1, and the ultrasonic transducers 2 are evenly spaced in the circumferential and height directions. The polygonal shape of the inner cylinder 1 provides a stable mounting plane for the ultrasonic transducers 2, simplifying installation and ensuring stable fixation. The outer cylinder 9 encloses the outer periphery of the ultrasonic transducers 2, providing protection for them.

[0022] This utility model discloses an ultrasonic cleaning machine for powder metallurgy. Ultrasonic transducers are evenly spaced circumferentially around the outer periphery of the inner cylinder. This allows the circumferentially distributed transducers to generate sound waves, providing uniform and indiscriminate cleaning of the ultra-hard materials and ultra-hard material powder within the inner cylinder. Furthermore, the evenly spaced transducers along the height direction allow for the deployment of multiple rows of transducers, enabling the number of transducers to be adjusted based on the amount of material, thereby reducing water consumption. This achieves multi-purpose functionality, enabling cleaning of ultra-hard materials and ultra-hard material powder within a wide area of ​​the inner cylinder, avoiding the drawback of significant differences in cleaning effectiveness along the height direction. The ultrasonic cleaning machine for powder metallurgy offers a large cleaning range, a wide area coverage, and excellent cleaning results.

[0023] The inner cylinder 1 is a hexagonal or octagonal prism, and the ultrasonic transducers 2 are spaced apart on the facets of the hexagonal or octagonal prism, arranged in multiple rows along the height and multiple rows along the periphery. This arrangement allows for relatively stable installation of the ultrasonic transducers on the planes between adjacent prisms, and creates a larger installation space along the height, allowing for the installation of a larger number of ultrasonic transducers 2, thus achieving better cleaning efficiency. The tops of the inner cylinder 1 and the outer cylinder 9 are flush, and a cover 11 is provided at the top of the inner cylinder 1 and the outer cylinder 9 to cover the cavity between them. A water outlet 14 is provided on one side of the cover 11. After the cover 11 is placed on the inner cylinder 1 and the outer cylinder 9, the cavity of the inner cylinder 1 and the outer cylinder 9 is sealed, preventing cleaning water from entering the inner cavity and causing a short circuit in the ultrasonic transducers 2.

[0024] The inner cylinder 1 is topped with a support plate 13, a stirring reducer motor with a worm gear reducer 6 mounted on the support plate 13, a stirring rod 7 for stirring inside the inner cylinder 1, and stirring blades 8 at the end of the stirring rod 7. The output shaft of the worm gear reducer 6 is connected to the stirring rod 7 to drive the stirring rod 7 to rotate and stir. This design provides the stirring rod with basic stirring function, allowing it to stir and tumble the ultra-hard materials and ultra-hard material powder inside the inner cylinder, resulting in a more uniform cleaning operation.

[0025] The output shaft of the worm gear reducer 6 and the stirring rod 7 are integrated into a hexagonal rod structure. The top of the hexagonal stirring rod 7 is a cylindrical head. The worm gear 20 of the worm gear reducer 6 has a hexagonal hole through which the stirring rod 7 slides up and down. The worm gear reducer 6 is equipped with several support rods 18, and cylinders 5 are fixedly mounted on the top of the support rods 18. The lower end of the piston rod 16 of the cylinder 5 is connected to an upper connecting plate 15. Several tie rods 17 are connected to the lower part of the upper connecting plate 15. The bottom end of the tie rods 17 is fixedly connected to a lower connecting plate 19. The central through hole of the lower connecting plate 19 is rotatably connected to the stirring rod 7 through a bearing to pull the stirring rod 7 up and down. The arrangement of the support rods 18, cylinders 5, upper connecting plate 15, tie rods 17, and lower connecting plate 19 allows the stirring rod to slide up and down with the moving surface of the cylinder. The output shaft of the worm gear reducer 6 is integrated with the stirring rod 7, and the worm wheel 20 is positioned at the center so that the integrated stirring rod passes through, resulting in a better connection between the stirring rod and the worm gear reducer 6 and forming a good vertical sliding structure. The top cylinder is movably connected to the lower connecting plate 19 via a bearing, allowing for vertical sliding without affecting the rotation of the stirring rod. The worm gear reducer selected by our company is the RV50 reducer.

[0026] The powder metallurgy ultrasonic cleaning machine also includes a frame 10, a bracket set on the frame 104, and a rotating shaft passing through the bracket set 4. The cylinder is fixedly connected to the rotating shaft. A motor with a reducer is installed on one side of the frame 103, and the rotating shaft is connected to the output shaft of the reducer. A water inlet pipe 12 is provided on the support plate 13 for connecting a flexible water inlet hose. A level gauge mounting hole is also provided on the support plate for fixing a level gauge, and a flow meter is installed on the water inlet pipe. The water inflow into the inner cylinder is controlled by the level gauge and flow meter to achieve better cleaning and prevent poor cleaning effect due to insufficient water, as well as to prevent overflow due to excessive water.

Claims

1. A powder metallurgy ultrasonic cleaning machine, characterized in that: It includes at least a vertical ultrasonic cleaning tank that can swing back and forth and tilt. The tank includes a circular outer cylinder and a polygonal inner cylinder disposed in the inner cavity of the outer cylinder, so that a cavity for ultrasonic transducers is formed between the outer cylinder and the inner cylinder. Several ultrasonic transducers are disposed on the periphery of the outer wall of the inner cylinder, and the several ultrasonic transducers are evenly spaced in the circumferential and height directions.

2. The powder metallurgy ultrasonic cleaning machine as described in claim 1, characterized in that: The inner cylinder has a quadrilateral, hexagonal, or octagonal structure, and the ultrasonic transducers are spaced apart and arranged on the periphery of the quadrilateral, hexagonal, or octagonal structure in multiple rows in the height direction and in multiple rows in the periphery direction.

3. The powder metallurgy ultrasonic cleaning machine as described in claim 2, characterized in that: The tops of the inner and outer cylinders are flush, and the tops of the inner and outer cylinders are provided with a cover to cover the cavity between the inner and outer cylinders. The cover has a water outlet on one side.

4. The powder metallurgy ultrasonic cleaning machine as described in claim 3, characterized in that: The inner cylinder is provided with a support plate at the top, a stirring reduction motor on the support plate, a stirring rod for stirring inside the inner cylinder, and stirring blades at the end of the stirring rod; the output shaft of the stirring reduction motor is connected to the stirring rod to drive the stirring rod to rotate and stir.

5. The powder metallurgy ultrasonic cleaning machine as described in claim 4, characterized in that: The reducer of the stirring reducer motor is an RV worm gear reducer motor. The output shaft of the stirring reducer motor and the stirring rod are integrated into a hexagonal rod structure. The top of the hexagonal stirring rod is a cylindrical head. The worm gear of the stirring reducer motor has a hexagonal hole through which the stirring rod slides up and down. Several support rods are provided on the housing of the stirring reducer motor, and cylinders are fixedly installed at the top of the support rods. The lower end of the piston rod of the cylinder is connected to an upper connecting plate. Several connecting rods are connected below the upper connecting plate. The bottom end of the connecting rods is fixedly connected to a lower connecting plate. The central through hole of the lower connecting plate is rotatably connected to the stirring rod through a bearing to pull the stirring rod up and down.

6. The powder metallurgy ultrasonic cleaning machine as described in claim 4, characterized in that: The support plate is provided with an inlet pipe and an external inlet hose, and a level gauge mounting hole is provided for fixing the level gauge. The inlet pipe is equipped with a flow meter.

7. The powder metallurgy ultrasonic cleaning machine as described in claim 1, characterized in that: The powder metallurgy ultrasonic cleaning machine also includes a frame, a tile frame mounted on the frame, and a rotating shaft passing through the tile frame. The cylinder is fixedly connected to the drive shaft. A drive reduction motor is provided on one side of the frame, and the drive shaft is connected to the output shaft of the drive reduction motor. The drive reduction motor is an RV worm gear reduction motor.

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