Powder flow velocity control and segregation prevention device

Abstract

The utility model belongs to the technical field of powder spraying, and particularly relates to a powder flow velocity control and segregation prevention device. Comprising a storage bin, a flow guide pipe, a control bin, an ultrasonic generator, a driving piece, blades and a pressure sensor. The storage bin is provided with a containing cavity for storing powder, a feeding port and a discharging port, one end of the flow guide pipe is connected with the discharging port, the control bin is installed above the storage bin, and the ultrasonic generator and the driving part are both installed in the control bin; the blades are installed in the flow guide pipe and connected with the driving part, and the pressure sensor is arranged in the end, away from the storage bin, of the flow guide pipe; and the arranged blades can stir the mixed powder, prevent powder segregation and assist in conveying the powder, the problem that existing low-apparent-density mixed powder is difficult to flow is solved, the flowing powder is controlled through a pressure sensor, and accurate conveying is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of powder metallurgy equipment technology, and in particular relates to a powder flow rate control and anti-segregation device. Background Technology

[0002] Powder metallurgy is a process that uses metal powder as raw material to manufacture metal materials, composite materials, and various types of products through forming and sintering. In powder metallurgy, powder feeding equipment is required to transport the powder to the forming equipment. If a low bulk ratio mixed powder is used for conveying, the powder is prone to bridging during the flow of the equipment, which can lead to blockage and affect the processing. Utility Model Content

[0003] The purpose of this invention is to provide a powder flow rate control and anti-segregation device, which aims to solve the technical problem that low bulk ratio mixed powders are prone to clogging in the prior art.

[0004] To achieve the above objectives, this utility model provides a powder flow rate control and anti-segregation device, comprising a storage chamber, a guide pipe, a control chamber, an ultrasonic generator, a drive component, blades, and a pressure sensor. The storage chamber has a cavity for storing powder, an inlet, and an outlet. One end of the guide pipe is connected to the outlet. The control chamber is installed above the storage chamber. The ultrasonic generator and the drive component are both installed inside the control chamber. The blades are installed inside the guide pipe and connected to the drive component. The pressure sensor is located at the end of the guide pipe furthest from the storage chamber.

[0005] Optionally, the control compartment is provided with a mounting frame, the ultrasonic generator is mounted on the mounting frame, and a buffer spring is provided between the mounting frame and the control compartment.

[0006] Optionally, the mounting bracket includes a connecting plate and a connecting column, the connecting column is fixed in the control compartment, the connecting plate is provided with a through hole adapted to the connecting column, the through hole is slidably connected to the connecting column, and the buffer spring is connected between the control compartment and the bottom of the connecting plate.

[0007] Optionally, the ultrasonic generator includes an ultrasonic transducer and a collector ring, the ultrasonic transducer being mounted on the mounting bracket and the collector ring being disposed on the ultrasonic transducer.

[0008] Optionally, the ultrasonic transducer is located at the center of the mounting bracket.

[0009] Optionally, it also includes a universal joint, which connects the drive member and the blade.

[0010] Optionally, the universal joint is made of stainless steel.

[0011] Optionally, the output end of the drive unit is connected to a synchronous pulley, and a synchronous belt is provided between the synchronous pulley and the universal joint.

[0012] Optionally, the universal joint is located at the center of the control compartment.

[0013] Optionally, a cover is also provided at the end of the guide tube.

[0014] The powder flow rate control and anti-segregation device provided in this embodiment of the present invention has at least one of the following technical effects: During use, mixed powder is added to the storage chamber through the inlet. After adding the mixed powder, the ultrasonic generator is activated. The vibration of the ultrasonic generator changes the angle of repose of the mixed powder, causing it to flow from the storage chamber into the guide pipe and out of the guide pipe outlet. A pressure sensor located at the outlet of the guide pipe detects the pressure of the mixed powder and controls the drive component to drive the blades. The powder flows in the guide tube. When the detected pressure is too high, the blades are driven to rotate to lift the powder in the guide tube, causing the powder to flow back towards the storage chamber. When the detected pressure is too low, the blades are driven to rotate to lower the powder in the guide tube, causing the powder to flow towards the outlet of the guide tube. The blades can also stir the mixed powder to prevent powder segregation and assist in conveying the powder. This solves the problem of difficult flow of mixed powder with low bulk ratio. The flow of powder is controlled by a pressure sensor to achieve precise conveying. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0016] Figure 1 A schematic diagram of the structure of the powder flow rate control and anti-segregation device provided in the embodiment of this utility model.

[0017] Figure 2 for Figure 1 An enlarged schematic diagram of the control chamber in the provided powder flow rate control and anti-segregation device.

[0018] Figure 3 for Figure 1 An enlarged schematic diagram of the cover in the provided powder flow rate control and anti-segregation device.

[0019] The following are the labeling elements in the figure:

[0020] 10—Storage compartment; 20—Flow guide pipe; 21—Cover body

[0021] 30—Control compartment; 40—Ultrasonic generator; 41—Ultrasonic transducer

[0022] 42—Slip ring; 50—Drive component; 51—Universal shaft

[0023] 52—Synchronous pulley; 60—Blade; 70—Pressure sensor

[0024] 80—Mounting bracket 81—Connecting plate 82—Connecting column

[0025] 90—Buffer spring. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In one embodiment of this utility model, such as Figures 1-3 As shown, a powder flow rate control and anti-segregation device is provided, including a storage chamber 10, a guide pipe 20, a control chamber 30, an ultrasonic generator 40, a drive component 50, a blade 60, and a pressure sensor 70. The storage chamber 10 has a cavity for storing powder, an inlet, and an outlet. One end of the guide pipe 20 is connected to the outlet. The control chamber 30 is installed above the storage chamber 10. The ultrasonic generator 40 and the drive component 50 are both installed inside the control chamber 30. The blade 60 is installed inside the guide pipe 20 and is connected to the drive component 50. The pressure sensor 70 is located at the end of the guide pipe 20 away from the storage chamber 10.

[0031] Specifically, in use, the mixed powder is added to the storage chamber 10 through the inlet. After adding the mixed powder, the ultrasonic generator 40 is activated. The vibration of the ultrasonic generator 40 changes the angle of repose of the mixed powder, causing the mixed powder to flow from the storage chamber 10 into the guide pipe 20 and out of the guide pipe 20. The pressure sensor 70 located at the outlet of the guide pipe 20 is used to detect the pressure of the mixed powder and control the drive component 50 to drive the blades 60 to flow in the guide pipe 20. If the detected pressure value is too high, then... The drive blade 60 rotates to lift the powder in the guide pipe 20, that is, to make the powder flow back towards the storage chamber 10; when the detected pressure value is too low, the drive blade 60 rotates to reduce the powder in the guide pipe 20, that is, to make the powder flow towards the outlet end of the guide pipe 20; the blade 60 can also stir the mixed powder to prevent powder segregation, and can also assist in conveying the powder, solving the problem of difficult flow of mixed powder with low bulk ratio, and the flow of powder is controlled by the pressure sensor 70 to achieve precise conveying.

[0032] Furthermore, the control chamber 30 is also equipped with a touch screen, which is connected to the pressure sensor 70. The pressure sensor 70 outputs a 4-20mA current based on the monitored pressure, and the current is converted by the PLC in the touch screen and displayed on the touch screen to facilitate real-time monitoring of the mixed powder in the equipment.

[0033] Furthermore, the pressure sensor 70, touch screen, and PLC conversion structure and method are all existing technologies, and will not be described in detail here; in this embodiment, the above applications are used to enable people to monitor the pressure of powder in the equipment at all times.

[0034] In another embodiment of this utility model, such as Figures 1-2 As shown, a mounting bracket 80 is provided in the control compartment 30, and the ultrasonic generator 40 is mounted on the mounting bracket 80. A buffer spring 90 is provided between the mounting bracket 80 and the control compartment 30. Specifically, the mounting bracket 80 facilitates the installation of the ultrasonic generator 40 and the drive component 50. The buffer spring 90 between the mounting bracket 80 and the control compartment 30 can extend the service life of the mounting bracket 80.

[0035] In another embodiment of this utility model, such as Figures 1-2 As shown, the mounting bracket 80 includes a connecting plate 81 and a connecting post 82. The connecting post 82 is fixed in the control compartment 30. The connecting plate 81 has a through hole adapted to the connecting post 82, and the through hole is slidably connected to the connecting post 82. The buffer spring 90 is connected between the control compartment 30 and the bottom of the connecting plate 81. Specifically, during assembly, the connecting post 82 is passed through the through hole, and the buffer spring 90 is sleeved on the connecting post 82. Finally, the connecting post 82 is fixed in the control compartment 30. The buffer spring 90 provides a buffering effect on the connecting plate 81. Compared with the one-piece structure mounting bracket 80, it has a longer service life and can effectively prevent cracks from appearing between the connecting post 82 and the connecting plate 81 due to long-term vibration.

[0036] In another embodiment of this utility model, such as Figures 1-2 As shown, the ultrasonic generator 40 includes an ultrasonic transducer 41 and a slip ring 42. The ultrasonic transducer 41 is mounted on the mounting bracket 80, and the slip ring 42 is disposed on the ultrasonic transducer 41. Specifically, the slip ring 42 is electrically connected to the ultrasonic transducer 41 to ensure that the ultrasonic transducer 41 can effectively maintain electrical conductivity during long-term vibration, avoiding situations such as wires coming loose due to prolonged vibration, thus ensuring stable operation.

[0037] In another embodiment of this utility model, such as Figures 1-2 As shown, the ultrasonic transducer 41 is located at the center of the mounting bracket 80. Specifically, its central location ensures that the powder in the device receives more uniform vibration in all directions.

[0038] In another embodiment of this utility model, such as Figures 1-3As shown, it also includes a universal joint 51, which connects the drive member 50 and the blade 60. Specifically, the universal joint 51 ensures that it can stably drive the blade 60 to rotate even under long-term vibration.

[0039] In another embodiment of this invention, the universal joint 51 is made of stainless steel. Specifically, the universal joint 51 made of stainless steel is more durable.

[0040] In another embodiment of this utility model, the blade 60 is a spiral auger blade; the spiral auger blade and the universal joint 51 are flexibly connected.

[0041] In another embodiment of this utility model, such as Figures 1-2 As shown, the output end of the drive component 50 is connected to a synchronous pulley 52, and a synchronous belt is provided between the synchronous pulley 52 and the universal joint 51. In this way, the axis of the universal joint 51 can be connected to the drive component 50 without coinciding with the axis of the drive component 50. That is, by setting the universal joint 51 in the central position, it can be arranged coaxially with the blade 60, while avoiding the ultrasonic generator 40 located in the central position, and the transmission effect is satisfied.

[0042] In another embodiment of this utility model, the universal joint 51 is located at the center of the control compartment 30. Specifically, the universal joint 51 is located at the center and can be arranged coaxially with the blade 60 to better drive the blade 60 to rotate.

[0043] In another embodiment of this utility model, such as Figures 1-3 As shown, a cover 21 is also provided at the end of the guide pipe 20. Specifically, the cover 21 is used to prevent external environmental factors from affecting the outlet of the guide pipe 20, such as the powder at the outlet of the guide pipe 20 being agglomerated due to moisture in the external environment.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder flow rate control and anti-segregation device, characterized in that, The device includes a storage chamber, a guide pipe, a control chamber, an ultrasonic generator, a drive unit, blades, and a pressure sensor. The storage chamber has a cavity for storing powder, an inlet, and an outlet. One end of the guide pipe is connected to the outlet. The control chamber is installed above the storage chamber. The ultrasonic generator and the drive unit are both installed inside the control chamber. The blades are installed inside the guide pipe and connected to the drive unit. The pressure sensor is located at the end of the guide pipe away from the storage chamber.

2. The powder flow rate control and anti-segregation device according to claim 1, characterized in that, The control compartment is equipped with a mounting frame, the ultrasonic generator is mounted on the mounting frame, and a buffer spring is provided between the mounting frame and the control compartment.

3. The powder flow rate control and anti-segregation device according to claim 2, characterized in that, The mounting bracket includes a connecting plate and a connecting column. The connecting column is fixed in the control compartment. The connecting plate is provided with a through hole adapted to the connecting column. The through hole is slidably connected to the connecting column. The buffer spring is connected between the control compartment and the bottom of the connecting plate.

4. The powder flow rate control and anti-segregation device according to claim 2, characterized in that, The ultrasonic generator includes an ultrasonic transducer and a collector ring. The ultrasonic transducer is mounted on the mounting bracket, and the collector ring is disposed on the ultrasonic transducer.

5. The powder flow rate control and anti-segregation device according to claim 4, characterized in that, The ultrasonic transducer is located at the center of the mounting bracket.

6. The powder flow rate control and anti-segregation device according to claim 1, characterized in that, It also includes a universal joint, which connects the drive unit and the blade.

7. The powder flow rate control and anti-segregation device according to claim 6, characterized in that, The universal joint is made of stainless steel.

8. The powder flow rate control and anti-segregation device according to claim 6, characterized in that, The output end of the drive component is connected to a synchronous pulley, and a synchronous belt is provided between the synchronous pulley and the universal joint.

9. The powder flow rate control and anti-segregation device according to claim 8, characterized in that, The universal joint is located at the center of the control compartment.

10. The powder flow rate control and anti-segregation device according to claim 1, characterized in that, The end of the guide tube is also provided with a cover.

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