Metal powder preparation device

Abstract

The utility model provides a metal powder preparation device, and relates to the technical field of metal powder processing. The metal powder preparation device comprises a box body and a box cover, the box cover covers the box body, a grinding disc, a grinding wheel and a filter plate are arranged in the box body, the grinding disc is located above the grinding wheel, the grinding wheel is located at the top of the filter plate, the grinding disc is connected with a grinding motor, and the grinding motor is connected with the box cover. A grinding wheel is arranged in the box body, an electric telescopic rod is connected to the grinding wheel, a discharging port is formed in the bottom of the box body, a screening mechanism is arranged below the discharging port, the screening mechanism comprises a screening frame, a collecting box and a driving mechanism, and the driving mechanism is used for driving the screening frame and the collecting box to do reciprocating motion. According to the metal powder screening device, metal powder can be directly screened in the production process, the machining efficiency can be improved, and harm to the bodies of workers can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder processing, in particular to a metal powder preparation device. Background Art

[0002] Metal powder materials are widely used in industrial fields such as powder metallurgy and metal surface engineering. In recent years, metal 3D printing technology has developed rapidly, and the demand for metal powder raw materials has become more urgent than ever before, while also placing higher requirements on the performance of metal powder.

[0003] However, in the prior art, in the process of preparing metal powder, it is often necessary to grind the metal into powder and then collect the powder. However, in the existing device, there are certain requirements on the diameter of the powder during the production of the metal powder. Under normal circumstances, the general size requirement is 1 mm, so the metal powder needs to be screened after the machine is ground. The existing metal powder preparation device cannot directly screen the metal powder during production, which affects the processing efficiency, and it is easy for the staff to inhale the powder into the lungs during the screening process, which is harmful to the health of the staff. Utility Model Content

[0004] The utility model aims to provide a metal powder preparation device, which can directly screen the metal powder during the production process, which can not only improve the processing efficiency but also avoid physical harm to the workers.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A metal powder preparation device comprises a box body and a box cover, the box cover is closed on the box body, a grinding disc, a grinding wheel and a filter plate are arranged in the box body, the grinding disc is located above the grinding wheel, the grinding wheel is located on the top of the filter plate, the grinding disc is connected to a grinding motor, the grinding wheel is connected to an electric telescopic rod, a discharge port is opened at the bottom of the box body, a screening mechanism is arranged below the discharge port, the screening mechanism comprises a screen frame, a collecting box and a driving mechanism, the driving mechanism is used to drive the screen frame and the collecting box to reciprocate.

[0007] Furthermore, the driving mechanism includes a base, a first slider, a second slider, a rocker arm, a connecting rod and a spring. The base is provided with a first cavity and a second cavity which are independent of each other. The first slider is located in the first cavity, and the second slider is located in the second cavity. Connecting columns are provided at both ends of the first slider. The second slider has the same structure as the first slider. Springs are mounted on the connecting columns of the first slider and the second slider. The other ends of the springs are respectively connected to the inner side wall of the first cavity and the inner side wall of the second cavity. One end of the rocker arm is connected to one side of the first slider through a first rotating shaft, and the other end of the rocker arm is rotatably connected to the connecting rod. The other end of the connecting rod is rotatably connected to the second slider through the second rotating shaft. A driving motor is provided on the side of the first slider away from the rocker arm, and the output end of the driving motor is connected to the first rotating shaft. The bottom of the collecting box is connected to the top of the first slider through a first connecting plate, and the bottom of the screen frame is connected to the top of the second slider through a support member.

[0008] Furthermore, the support member includes a crossbeam and a second connecting plate, both ends of the crossbeam are connected to the bottom of the screen frame through a support plate, one end of the second connecting plate is connected to the bottom of the crossbeam, and the other end of the second connecting plate is connected to the top of the second slider, and the collection box is located on the crossbeam.

[0009] Furthermore, the collection box includes an inner box body and an outer box body, and the inner box body is slidably mounted on the outer box body.

[0010] Furthermore, a feeding mechanism is provided on the box body, which includes a cylinder and a clamping member. The cylinder is installed on the outer wall of the box body, the clamping member is located inside the box body, and the piston rod of the cylinder passes through the side wall of the box body and is connected to the clamping member.

[0011] Furthermore, the clamping member includes an outer cylinder and an inner cylinder, the outer side wall of the inner cylinder is provided with a plurality of elastic members distributed in a ring shape, and the other end of the elastic member is connected to the inner side wall of the outer cylinder.

[0012] Furthermore, a fan is provided at the bottom of the box cover.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0014] In the utility model, a grinding motor is used to drive the grinding disc to rotate. During the rotation of the grinding disc, friction is generated with the metal rod, thereby grinding the metal rod into powder, thus realizing the initial grinding; then, the electric telescopic rod is used to drive the grinding wheel to reciprocate on the filter plate, thereby performing secondary grinding on the powder on the filter plate. Through the cooperation of the two grindings, the quality of the metal powder can be improved, and metal powder that meets the requirements can be obtained. At the same time, the reciprocating motion of the grinding wheel on the filter plate can speed up the speed at which the powder passes through the filter plate, thereby improving the processing efficiency. The ground powder falls into the screen frame from the discharge port, and the driving mechanism is used to drive the screen frame and the collection box to reciprocate, so that the screen frame swings back and forth on the collection box, thereby realizing screening, which can speed up the screening speed and avoid the harm of manual screening to the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the structure of a metal powder preparation device provided in Example 1 of the utility model;

[0017] Figure 2 A schematic diagram of the structure of the screening mechanism state 1 provided in Example 1 of the utility model;

[0018] Figure 3 A schematic diagram of the structure of the screening mechanism state 2 provided in Example 1 of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the screen frame and the collection box in Example 1 of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the clamping member in Example 1 of the utility model.

[0021] Icons: 1-box body, 2-box cover, 3-grinding disc, 4-grinding wheel, 5-grinding motor, 6-electric telescopic rod, 7-filter plate, 8-screen frame, 9-collecting box, 10-driving mechanism, 11-cylinder, 12-clamping piece, 13-metal rod, 14-fan, 15-discharge port, 91-first connecting plate, 92-outer box body, 93-inner box body, 81-support plate, 82-second connecting plate, 83-crossbeam, 101-base, 102-first slider, 103-second slider, 104-first cavity, 105-second cavity, 106-connecting column, 107-spring, 108-rocker arm, 109-connecting rod, 121-outer cylinder, 122-inner cylinder, 123-elastic part. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1

[0028] like Figure 1-5 As shown, this embodiment provides a metal powder preparation device, including a box body 1 and a box cover 2, the box cover 2 is covered on the box body 1, and a grinding disc 3, a grinding wheel 4 and a filter plate 7 are arranged in the box body 1, the grinding disc 3 is located above the grinding wheel 4, the grinding wheel 4 is located on the top of the filter plate 7, the grinding disc 3 is connected to a grinding motor 5, the grinding wheel 4 is connected to an electric telescopic rod 6, a discharge port 15 is opened at the bottom of the box body 1, and a screening mechanism is arranged below the discharge port 15, the screening mechanism includes a screen frame 8, a collecting box 9 and a driving mechanism 10, and the driving mechanism 10 is used to drive the screen frame 8 and the collecting box 9 to reciprocate.

[0029] The grinding motor 5 is used to drive the grinding disc 3 to rotate. During the rotation of the grinding disc 3, friction is generated with the metal rod 13, thereby grinding the metal rod 13 into powder, thus realizing the initial grinding; the electric telescopic rod 6 is then used to drive the grinding wheel 4 to reciprocate on the filter plate 7, thereby performing secondary grinding on the powder on the filter plate 7. Through the cooperation of the two grindings, the quality of the metal powder can be improved, and metal powder that meets the requirements can be obtained. At the same time, the reciprocating motion of the grinding wheel 4 on the filter plate 7 can speed up the speed at which the powder passes through the filter plate 7, thereby improving the processing efficiency. The ground powder falls into the screen frame 8 from the discharge port 15, and the driving mechanism 10 is used to drive the screen frame 8 and the collection box 9 to reciprocate, so that the screen frame 8 swings back and forth on the collection box 9, thereby realizing screening, which can speed up the screening speed and avoid the harm of manual screening to the health of the staff.

[0030] In this embodiment, the driving mechanism 10 includes a base 101, a first slider 102, a second slider 103, a rocker arm 108, a connecting rod 109 and a spring 107. The base 101 is provided with a first cavity 104 and a second cavity 105 which are independent of each other. The first slider 102 is located in the first cavity 104, and the second slider 103 is located in the second cavity 105. Connecting columns 106 are provided at both ends of the first slider 102. The second slider 103 has the same structure as the first slider 102. The connecting columns 106 of the first slider 102 and the second slider 103 are both provided with springs 107. The other ends of the springs 107 are connected to the connecting columns 106 of the first slider 102 and the second slider 103. The inner wall of the first cavity 104 is connected to the inner wall of the second cavity 105, one end of the rocker arm 108 is connected to one side of the first slider 102 through the first rotating shaft, the other end of the rocker arm 108 is rotatably connected to the connecting rod 109, and the other end of the connecting rod 109 is rotatably connected to the second slider 103 through the second rotating shaft. A driving motor (not shown in the figure) is provided on the side of the first slider 102 away from the rocker arm 108, and the output end of the driving motor is connected to the first rotating shaft. The bottom of the collecting box 9 is connected to the top of the first slider 102 through the first connecting plate 91, and the bottom of the screen frame 8 is connected to the top of the second slider 103 through a support. When in use, the first rotating shaft is driven to rotate by the driving motor, the first rotating shaft drives the rocker arm 108 to rotate, the rocker arm 108 drives the connecting rod 109 to rotate, during the rotation process, the rocker arm 108 drives the first slider 102 to slide in the first cavity 104, the connecting rod 109 drives the second slider 103 to slide in the second cavity 105, while the first slider 102 and the second slider 103 slide, the spring 107 on the connecting column 106 on the side where the two sliders are close to each other is stretched, and the spring 107 on the connecting column 106 on the side away from each other is compressed. Thereby, the first slider 102 drives the collecting box 9 to move in the horizontal direction, and the second slider 103 drives the screen frame 8 to move in the horizontal direction, and the screen frame 8 and the collecting box 9 move away from each other. When the rocker arm 108 and the connecting rod 109 are located in the same horizontal plane, the screen frame 8 is farthest away from the collecting box 9; the rotation continues, and the screen frame 8 and the collecting box 9 approach each other. When the angle between the rocker arm 108 and the connecting rod 109 is the smallest, the spring 107 returns to its original state, and the screen frame 8 is closest to the collecting box 9. The above process is repeated, so that the screen frame 8 moves repeatedly on the collecting box 9 to achieve screening.

[0031] In this embodiment, the support member includes a crossbeam 83 and a second connecting plate 82, both ends of the crossbeam 83 are connected to the bottom of the screen frame 8 through a support plate 81, one end of the second connecting plate 82 is connected to the bottom of the crossbeam 83, and the other end of the second connecting plate 82 is connected to the top of the second slider 103, and the collection box 9 is located on the crossbeam 83. The collection box 9 is supported by the crossbeam 83 and the first connecting plate 91, thereby improving the stability of the collection box 9 and the screen frame 8 during screening.

[0032] In this embodiment, the collecting box 9 includes an inner box body 93 and an outer box body 92, and the inner box body 93 is slidably mounted on the outer box body 92. After screening, the inner box body 93 can be removed from the outer box body 92 to collect the metal powder in the inner box body 93, thereby improving the convenience of collecting the metal powder.

[0033] In this embodiment, a feeding mechanism is also provided on the box body 1, and the feeding mechanism includes a cylinder 11 and a clamping member 12. The cylinder 11 is installed on the outer wall of the box body 1, and the clamping member 12 is located inside the box body 1. The piston rod of the cylinder 11 passes through the side wall of the box body 1 and is connected to the clamping member 12. The clamping member 12 and the grinding disc 3 are arranged opposite to each other, and the metal rod 13 is clamped by the clamping member 12, and then the clamping member 12 is driven by the cylinder 11 to move in the horizontal direction, and the clamping member 12 drives the metal rod 13 to move toward the grinding disc 3. The grinding disc 3 rotates at a high speed under the drive of the grinding motor 5, and the grinding disc 3 and the metal rod 13 are ground by high-speed friction. By using the cylinder 11 for feeding, metal rods 13 of different lengths can be ground, which is highly practical.

[0034] In this embodiment, the clamping member 12 includes an outer cylinder 121 and an inner cylinder 122. The outer wall of the inner cylinder 122 is provided with a plurality of elastic members 123 distributed in an annular shape, and the other end of the elastic member 123 is connected to the inner wall of the outer cylinder 121. The metal rod 13 is placed in the inner cylinder 122. The outer cylinder 121, the inner cylinder 122 and the elastic member 123 can be used to grind metal rods 13 of different diameters, thereby further improving the practicality of the device.

[0035] In this embodiment, a fan 14 is provided at the bottom of the box cover 1. During the grinding process, the box cover 1 is closed on the box body 1. When the fan 14 rotates, the air flows downward, blowing the metal powder downward, allowing the metal powder to fall on the filter plate 7 as quickly as possible, and then the metal powder is ground again by the grinding wheel 4, which can improve the processing speed. At the same time, the fan 14 can also clean the inside of the box body 1, the grinding disc 3 and the clamping member 12, that is, the metal powder attached to the above is blown off by wind force, which improves the convenience of cleaning the device.

[0036] The working principle of a metal powder preparation device is: a metal rod 13 is clamped by a clamping member 12, a box cover 1 is closed, a fan 14, a grinding motor 5, a cylinder 11, an electric telescopic rod 6 and a driving motor are started, the grinding motor 5 drives the grinding disc 3 to rotate, the cylinder 11 drives the metal rod 13 to approach the grinding disc 3 to achieve grinding, the ground metal powder falls onto a filter plate 7 under the action of its own gravity and the wind force of the fan 14, the electric telescopic rod 6 drives the grinding wheel 4 to reciprocate on the filter plate 7, thereby performing secondary grinding on the metal powder on the filter plate 7. The metal powder coming out of the filter plate 7 falls into the screen frame 8 through the discharge port 15. At the same time, the driving motor drives the first rotating shaft to rotate, the first rotating shaft drives the rocker arm 108 to rotate, the rocker arm 108 drives the connecting rod 109 to rotate, and during the rotation process, the rocker arm 108 drives the first slider 102 to slide in the first cavity 104, and the connecting rod 109 drives the second slider 103 to slide in the second cavity 105. When the first slider 102 and the second slider 103 slide, the spring 107 on the connecting column 106 on the side where the two sliders are close to each other is stretched, and the connecting column 106 on the side away from each other is stretched. The spring 107 on 06 is compressed, so that the first slider 102 drives the collecting box 9 to move in the horizontal direction, and the second slider 103 drives the screen frame 8 to move in the horizontal direction, and the screen frame 8 and the collecting box 9 move away from each other. When the rocker arm 108 and the connecting rod 109 are located in the same horizontal plane, the screen frame 8 is farthest from the collecting box 9; continue to rotate, the screen frame 8 and the collecting box 9 approach each other, when the angle between the rocker arm 108 and the connecting rod 109 is the smallest, the spring 107 returns to its original state, and the screen frame 8 is closest to the collecting box 9. The above process is repeated, so that the screen frame 8 moves repeatedly on the collecting box 9 to achieve screening.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A metal powder preparation device, characterized in that: It includes a box body and a box cover, the box cover is closed on the box body, a grinding disc, a grinding wheel and a filter plate are arranged in the box body, the grinding disc is located above the grinding wheel, the grinding wheel is located on the top of the filter plate, the grinding disc is connected to a grinding motor, the grinding wheel is connected to an electric telescopic rod, a discharge port is opened at the bottom of the box body, a screening mechanism is arranged below the discharge port, the screening mechanism includes a screen frame, a collecting box and a driving mechanism, the driving mechanism is used to drive the screen frame and the collecting box to reciprocate.

2. The metal powder preparation device according to claim 1, characterized in that: The driving mechanism includes a base, a first slider, a second slider, a rocker arm, a connecting rod and a spring, the base is provided with a first cavity and a second cavity which are independent of each other, the first slider is located in the first cavity, the second slider is located in the second cavity, connecting columns are provided at both ends of the first slider, the second slider has the same structure as the first slider, and springs are mounted on the connecting columns of the first slider and the second slider, the other ends of the springs are respectively connected to the inner side wall of the first cavity and the inner side wall of the second cavity, one end of the rocker arm is connected to one side of the first slider through a first rotating shaft, the other end of the rocker arm is rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to the second slider through the second rotating shaft, a driving motor is provided on the side of the first slider away from the rocker arm, the output end of the driving motor is connected to the first rotating shaft, the bottom of the collecting box is connected to the top of the first slider through a first connecting plate, and the bottom of the screen frame is connected to the top of the second slider through a support member.

3. The metal powder preparation device according to claim 2, characterized in that: The support member includes a crossbeam and a second connecting plate, both ends of the crossbeam are connected to the bottom of the screen frame through a support plate, one end of the second connecting plate is connected to the bottom of the crossbeam, and the other end of the second connecting plate is connected to the top of the second sliding block, and the collecting box is located on the crossbeam.

4. The metal powder preparation device according to claim 1, characterized in that: The collection box comprises an inner box body and an outer box body, and the inner box body is slidably mounted on the outer box body.

5. The metal powder preparation device according to claim 1, characterized in that: The box body is also provided with a feeding mechanism, which includes a cylinder and a clamping member. The cylinder is installed on the outer wall of the box body, the clamping member is located in the box body, and the piston rod of the cylinder passes through the side wall of the box body and is connected to the clamping member.

6. The metal powder preparation device according to claim 5, characterized in that: The clamping member comprises an outer cylinder and an inner cylinder. The outer side wall of the inner cylinder is provided with a plurality of elastic members distributed in a ring shape. The other end of the elastic member is connected to the inner side wall of the outer cylinder.

7. The metal powder preparation device according to claim 1, characterized in that: A fan is arranged at the bottom of the box cover.

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