Intelligent powder screening and anti-mistake adding system for alloy powder production

Abstract

The application provides a powder intelligent screening and anti-mistake adding system for alloy powder production, and belongs to the technical field of powder metallurgy, which comprises a raw material trolley, a multi-stage screening unit, multiple groups of material bins and a control unit, the raw material trolley can add metal powder to be screened into the multi-stage screening unit, the multi-stage screening unit can automatically grade and output the metal powder after screening, and then the metal powder can be output into the multiple groups of material bins, the material bins are provided with second feeding openings that can be opened or closed, the control unit can receive second identification terminal information and first identification terminal information, and determine and analyze whether the information of the two is the same, and control the second feeding opening to be opened when the information of the two is the same, and then metal powder can be added into the material bin. The powder intelligent screening and anti-mistake adding system for alloy powder production has the technical effects that manual adding of powder raw material to the powder screening equipment and manual receiving of discharged metal powder are omitted, mistakes are prevented, and the operation of the powder screening equipment can be monitored.

Description

Technical Field

[0001] This invention belongs to the field of powder metallurgy technology, and more specifically, relates to an intelligent powder screening and error prevention system for alloy powder production. Background Technology

[0002] Powder metallurgy is a process technology that involves producing metal powders or using metal powders as raw materials, followed by forming and sintering to manufacture metallic materials, composite materials, and various types of products. Powder metallurgy includes both powder preparation and product manufacturing. Powder preparation is primarily a metallurgical process, while powder metallurgy products often extend far beyond the scope of materials and metallurgy, frequently involving multidisciplinary technologies. In particular, modern metal powder 3D printing technology integrates mechanical engineering, CAD, reverse engineering, layered manufacturing, CNC technology, materials science, and laser technology, making powder metallurgy product technology a modern comprehensive technology that spans even more disciplines.

[0003] Currently, powder sieving equipment and various hoppers for holding powders of different names are required in powder production. The sieving equipment can separate different types of powders, and after sieving, the powders must be placed into their corresponding hoppers to ensure a one-to-one correspondence. However, the powder sieving process requires manual addition of powder to the equipment and manual collection of powder discharged from it. Furthermore, there is a lack of monitoring of the equipment's operation, quality inspection of the output products, and measures to prevent the incorrect addition of powders to be sieving. If different types of alloy powders are added incorrectly due to manual operation, the entire batch of products cannot be delivered, and a single batch error can result in significant economic losses.

[0004] Therefore, it is necessary to design a device that can add powder into the powder screening equipment and receive the powder discharged from the powder screening equipment, so as to replace manual operation, realize the monitoring of the operation of the powder screening equipment, and avoid losses caused by incorrect powder addition. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent powder screening and error prevention system for alloy powder production, which aims to solve the technical problems of low efficiency, high error rate, and lack of operation monitoring of powder screening equipment when manually adding powder raw materials.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an intelligent powder screening and error prevention system for alloy powder production, comprising:

[0007] A multi-stage screening unit is used to screen metal powder and output the screened metal powder. The multi-stage screening unit has a first inlet and multiple first outlets, and the multiple first outlets are used to output metal powder of different grades respectively.

[0008] Multiple raw material carts are used to hold different types of metal powder to be screened. Each raw material cart has a first identification terminal, which has variety information corresponding to the name of the metal powder contained in the raw material cart. The raw material cart is adapted to add the metal powder to be screened into the first feed inlet.

[0009] Multiple hoppers, each having a second inlet at the top and a second outlet at the bottom, with a second identification terminal on the outer wall of each hopper, and each hopper being used to connect to multiple first outlets and receive metal powder output from the multi-stage screening unit, and each hopper being equipped with a first valve for closing or opening the second inlet;

[0010] The control unit is electrically connected to the first identification terminal and the second identification terminal respectively and is used to receive metal powder type information. The control unit is also electrically connected to the multi-stage screening unit and the first valve and is adapted to control the opening or closing of the second feed port. When the control unit receives and determines that the information of the second identification terminal is the same as the information of the first identification terminal, it controls the first valve to open so as to input metal powder into the silo. The control unit is adapted to monitor the operation of the multi-stage screening unit.

[0011] In one possible implementation, the raw material trolley has a hopper for holding metal powder to be screened, a first discharge port is located at the bottom of the hopper, one end of the conveying pipe is connected to the bottom of the hopper, and the other end of the conveying pipe is inserted into the first inlet. The metal powder inside the raw material trolley enters the first inlet after passing through the conveying pipe. The conveying pipe is connected to a second valve for controlling the flow of metal powder inside the conveying pipe. When the second identification terminal information is the same as the first identification terminal information, the second valve opens. The second valve is electrically connected to the control unit, and the operation of opening and closing the conveying pipe is controlled by the control unit.

[0012] In one possible implementation, a buffer chamber is provided between the conveying pipe and the first inlet. The buffer chamber is adapted to buffer the metal powder discharged from the conveying pipe. After buffering, the metal powder is discharged from the bottom of the buffer chamber and enters the multi-stage screening unit.

[0013] In one possible implementation, the intelligent powder screening and anti-misfilling system for alloy powder production also includes multiple transfer trolleys, each of which is connected to a plurality of silos, and the transfer trolleys are used to support and transfer the silos.

[0014] In one possible implementation, the intelligent powder screening and anti-misfilling system for alloy powder production further includes multiple discharge cylinders. One end of each discharge cylinder is connected to a plurality of first discharge ports, and the other end is connected to a plurality of second feed ports of the silos. A discharge valve is provided at the end of each discharge cylinder away from the multi-stage screening unit. The discharge valve is adapted to control the flow of metal powder inside the discharge cylinder. The discharge valve is electrically connected to the control unit and its operation is controlled by the control unit.

[0015] In one possible implementation, both the first identification terminal and the second identification terminal include a chip, an input module, an output module, and a communication module that are electrically connected to each other. The input module is adapted to input metal powder type information, the output module is adapted to output and display metal powder information, and the communication module is adapted to communicate with the control unit.

[0016] In one possible implementation, a weighing unit is provided inside the silo to weigh the metal powder input into the silo. The weighing unit is electrically connected to the control unit and its operation is controlled by the control unit. After weighing the metal powder, the weighing unit sends the weight information to the control unit. After receiving the weight information, the control unit analyzes and determines that if the weight information falls within the preset weight range of the control unit, it defines the silo as being full of metal powder.

[0017] In one possible implementation, the intelligent powder screening and anti-misfilling system for alloy powder production also includes a weighbridge, wherein the transfer trolley can move to the top of the weighbridge, the weighbridge is adapted to weigh the transfer trolley, the silo and the contained metal powder, and the weighbridge is electrically connected to the control unit and adapted to send weighing information to the control unit.

[0018] In one possible implementation, the control unit includes a PLC controller and a receiving module, a control setting module, a judgment and analysis module, a display screen, and an alarm connected to the PLC controller. The receiving module is adapted to receive information from the first identification terminal and the second identification terminal. The control setting module is adapted to control the first valve to open or close. The judgment and analysis module is adapted to judge and analyze whether the information of the second identification terminal is the same as the information of the first identification terminal. The display screen is adapted to display the received information. The alarm is adapted to issue an alarm signal when the information of the first identification terminal and the second identification terminal are different.

[0019] In one possible implementation, the multi-stage screening unit is connected to a monitoring component, which monitors the grading screening unit during operation. The monitoring component is electrically connected to the control unit and its operation is controlled by the control unit.

[0020] The beneficial effects of the intelligent powder screening and error prevention system for alloy powder production provided by this invention are as follows: Compared with the prior art, the intelligent powder screening and error prevention system for alloy powder production of this invention includes a multi-stage screening unit, a raw material trolley, multiple sets of silos, and a control unit. The raw material trolley can add metal powder to be screened into the multi-stage screening unit. After screening, the multi-stage screening unit can automatically classify and output the metal powder, which can then be output into multiple silos. Each silo has a second inlet that can be opened or closed. The control unit can receive information from a second identification terminal and information from a first identification terminal, and when the information is the same, it controls the second inlet to open, thereby adding metal powder into the silo. The intelligent powder screening and error prevention system for alloy powder production provided by this invention has the technical effects of eliminating the need for manual addition of powder raw materials to the powder screening equipment and receiving the discharged metal powder, preventing errors, and monitoring the operation of the powder screening equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the intelligent powder screening and error prevention system for alloy powder production provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the silo and transfer trolley structure of the intelligent powder screening and anti-misaddition system for alloy powder production provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the silo and transfer trolley structure of an intelligent powder screening and anti-misfilling system for alloy powder production provided in another embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Multi-stage screening unit; 11. First feed inlet; 12. First discharge outlet; 2. Raw material trolley; 21. Hopper; 22. Conveying pipe; 3. Storage bin; 31. Second feed inlet; 32. Second discharge outlet; 33. Weighing unit; 4. Control unit; 5. First identification terminal; 6. Second identification terminal; 7. Buffer bin; 8. Partition wall; 9. Transfer trolley; 91. Car body; 92. Handle; 93. Wheels; 10. Discharge cylinder; 110. Floor scale; 120. Monitoring components. Detailed Implementation

[0027] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present 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 of the present invention and are not intended to limit the present invention.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0033] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0035] Please refer to the following: Figures 1 to 2The present invention describes an intelligent powder sieving and anti-misfilling system for alloy powder production. The system includes a multi-stage sieving unit 1, raw material carts 2, multiple silos 3, and a control unit 4. The multi-stage sieving unit 1 is used to sieve metal powder and output the sieved metal powder. The multi-stage sieving unit 1 has a first inlet 11 and multiple first outlets 12, which are used to output metal powder of different grades. Multiple raw material carts 2 are used to hold different types of metal powder to be sieved. Each raw material cart 2 has a first identification terminal 5, which contains type information corresponding to the name of the metal powder contained in the cart. The raw material cart 2 is adapted to add the metal powder to be sieved into the first inlet 11. Multiple silos 3 have a second inlet 31 at the upper end and a third inlet 32 ​​at the lower end. Two discharge ports 32 are provided. A second identification terminal 6 is provided on the outer wall of the silo 3. Multiple silos 3 are respectively used to connect to multiple first discharge ports 12 and receive metal powder output from the multi-stage screening unit 1. Each of the multiple silos 3 is provided with a first valve for closing or opening the second feed port 31 (which is prior art and is not shown in the figure). The control unit 4 is electrically connected to the first identification terminal 5 and the second identification terminal 6 respectively and is used to receive metal powder type information. The control unit 4 is also electrically connected to the multi-stage screening unit 1 and the first valve and is adapted to control the opening or closing of the second feed port 31. When the control unit 4 receives and judges that the information of the second identification terminal 6 is the same as the information of the first identification terminal 5, it controls the first valve to open so as to input metal powder into the silo 3. The control unit 4 is adapted to monitor the operation of the multi-stage screening unit 1.

[0036] The intelligent powder screening and error prevention system for alloy powder production provided by this invention, compared with the prior art, allows the raw material trolley 2 to add metal powder to be screened into the multi-stage screening unit 1. The multi-stage screening unit 1 automatically grades and outputs the metal powder after screening, which is then distributed to multiple silos 3. Each silo 3 has a second feed inlet 31 that can be opened or closed. The control unit 4 receives information from the second identification terminal 6 and the first identification terminal 5, and controls the second feed inlet 31 to open when the information is identical, thus adding metal powder into the silos 3. This intelligent powder screening and error prevention system for alloy powder production eliminates the need for manual addition of powder raw materials to the powder screening equipment and receives the discharged metal powder, prevents errors, and enables monitoring of the operation of the powder screening equipment.

[0037] In this embodiment, the multi-stage screening unit 1 is a multi-stage screening machine, multi-layer grading screen, or multi-layer vibrating screen in the prior art, which can screen alloy powder into multiple powders of different sizes, which then fall into different silos 3 for classified storage. The raw material trolley 2 can automatically add metal powder into the multi-stage screening unit 1, and the amount added can be controlled and adjusted. In this embodiment, the control unit 4 has multiple functions, including multiple units or modules. By controlling the opening and closing of the first valve, it can prevent the screened metal powder from being added to the wrong silos 3, effectively preventing the occurrence of incorrect addition. The first feed inlet 11 is located at the upper end of the multi-stage screening unit 1, and the first discharge outlet 12 is located on its side.

[0038] The first identification terminal 5 and the second identification terminal 6 have the same structure and function. Both terminals can pre-input metal powder information and send it to the control unit 4. The control unit 4 analyzes the information to determine if the information from the first and second terminals is the same. If they are the same, the first valve is opened, allowing the metal powder to fall into the hopper 3, thus storing the metal powder. Conversely, if the information from the first and second terminals is different, the first valve is closed, preventing the metal powder from entering the hopper 3 and thus failing to store it. This serves to alert staff and effectively prevent errors.

[0039] To effectively prevent the incorrect addition of metal powder to the multi-stage screening unit 1, in some embodiments, please refer to... Figures 1 to 2 The raw material trolley 2 has a hopper 21 for holding metal powder to be screened. A first discharge port 12 is located at the bottom of the hopper 21. One end of a conveying pipe 22 is connected to the bottom of the hopper 21, and the other end of the conveying pipe 22 is inserted into the first feed port 11. The metal powder inside the raw material trolley 2 enters the first feed port 11 after passing through the conveying pipe 22. The conveying pipe 22 is connected to a second valve (existing technology, not shown in the figure) for controlling the flow of metal powder inside the conveying pipe 22. When the information of the second identification terminal 6 is the same as the information of the first identification terminal 5, the second valve opens. The second valve is electrically connected to the control unit 4, and the operation of the flow of the conveying pipe 22 is controlled by the control unit 4. When processing the same type of metal powder, the metal powder in the hopper 21 can be added to the multi-stage screening unit 1, and the screened metal powder can also be stored in the silo 3, effectively preventing incorrect addition and errors, and avoiding the cross-contamination or mixing of multiple types of metal powder during screening. In this embodiment, the conveying pipe 22 is vertically arranged, and the metal powder can fall freely inside it. When the second valve is opened, it can automatically fall into the multi-stage screening unit 1, realizing automatic feeding. The amount of metal powder inside the hopper 21 can be controlled in advance.

[0040] Specifically, the first valve and the second valve have the same structure. Both are electrically controlled devices that can be controlled to achieve switching actions. See the prior art for details.

[0041] In some embodiments, please refer to Figures 1 to 2 A buffer chamber 7 is provided between the conveying pipe 22 and the first feed inlet 11. The buffer chamber 7 is suitable for buffering the metal powder discharged from the conveying pipe 22. After buffering, the metal powder is discharged from the bottom of the buffer chamber 7 and enters the multi-stage screening unit 1. In this embodiment, the buffer chamber 7 is funnel-shaped, with an open upper end and a smaller lower end, allowing the lower end of the conveying pipe 22 to be inserted into the buffer chamber 7 to input metal powder into it. The purpose of the buffer chamber 7 is to prevent a large amount of metal powder from being added into the multi-stage screening unit 1, ensuring that the metal powder is added evenly into the multi-stage screening unit 1.

[0042] Preferably, a partition wall 8 is provided between the buffer bin 7 and the raw material trolley 2. The partition wall 8 has a vertical through hole along its upper edge, through which the material conveying pipe 22 passes. The raw material trolley 2 can travel on the upper part of the partition wall 8, and the buffer bin 7 can be fixedly connected to the partition wall 8.

[0043] To facilitate the transfer of materials from silo 3, please refer to the following embodiments: Figures 1 to 2 The intelligent powder screening and anti-misfilling system for alloy powder production also includes multiple transfer trolleys 9, each connected to multiple hoppers 3. The transfer trolleys 9 support the hoppers 3. Each transfer trolley 9 has four wheels at its bottom, enabling it to move the hoppers 3 to any location, facilitating the later use of metal powder and providing convenience.

[0044] The transfer trolley 9 includes a body 91 and a handle 92. The middle of the body 91 has an installation space for installing the hopper 3. The handle 92 is located on the side of the body 91. Multiple wheels 93 are provided at the bottom of the body 91.

[0045] In some embodiments, please refer to Figures 1 to 2 The intelligent powder screening and error prevention system for alloy powder production also includes multiple discharge cylinders 10. One end of each discharge cylinder 10 is connected to multiple first discharge ports 12, and the other end is connected to multiple second inlets 31 of multiple silos 3. A discharge valve (not shown in the figure, as it is prior art) is provided at the end of the discharge cylinder 10 away from the multi-stage screening unit 1. The discharge valve is suitable for controlling the flow of metal powder inside the discharge cylinder 10. The discharge valve is electrically connected to the control unit 4 and its operation is controlled by the control unit 4. The structure of this discharge valve is the same as that of the first and second valves mentioned above, and both can realize the on / off control of the metal powder conveying process, thereby effectively preventing errors in the screening and storage of metal powder.

[0046] Specifically, the discharge valve can be a rotary valve, butterfly valve, etc., and is electrically controlled, meaning that the motor can drive the discharge valve to operate, thereby enabling the on / off switching of the metal powder conveying process. That is, it can open the discharge cylinder 10 to allow the powder to flow into the hopper 3, and it can also close the discharge cylinder 10 to prevent the powder from flowing into the hopper 3.

[0047] In some embodiments, please refer to Figures 1 to 2 The first identification terminal 5 and the second identification terminal 6 each include a chip, an input module, an output module, and a communication module that are electrically connected to each other. The input module is suitable for inputting information about the type of metal powder, the output module is suitable for outputting and displaying the metal powder information, and the communication module is suitable for communicating with the control unit 4. The chip can be a PLC controller. The input module, output module, and communication module are all existing technologies capable of performing the above functions and are all electrically connected to the PLC controller. The input module is a manually input module, allowing manual operation to preset the metal powder type information, thereby sending the preset information to the control unit 4. The control unit 4 can determine whether the information of the first identification terminal 5 and the second identification terminal 6 is the same. If they are the same, an action is executed. The first valve, the second valve, and the discharge valve are normally closed.

[0048] In some embodiments, please refer to Figures 1 to 2 The hopper 3 is equipped with a weighing unit 33, which weighs the metal powder entering the hopper 3. The weighing unit 33 is electrically connected to the control unit 4 and its operation is controlled by the control unit 4. After weighing the metal powder, the weighing unit 33 sends the weight information to the control unit 4. After receiving the weight information, the control unit 4 analyzes and determines whether the weight information falls within a preset range. If so, the control unit 4 defines the hopper 3 as full. In this embodiment, the weighing unit 33 includes a weighing sensor, a controller, etc., and is located in the middle of the vertical direction of the hopper 3. It can weigh the metal powder entering the hopper 3 and pour the weighed metal powder into the bottom of the hopper 3. It can also perform secondary or multiple weighings and pour the metal powder into the bottom of the hopper 3 after each weighing, thus enabling multiple weighings of the metal powder. After each weighing, the weight information is sent to the control unit 4 and displayed. The control unit 4 can control the operation of the weighing unit 33. The control unit 4 is equipped with a module that can control the operation of the weighing unit 33. The control unit 4 has a preset weight information range. When the total weight information after weighing is within the preset range, it is considered that the metal powder inside the hopper 3 is full. Then, the metal powder is not received or placed. At this time, a new hopper 3 can be replaced.

[0049] To achieve the weighing of metal powder, please refer to some embodiments. Figure 3The intelligent powder screening and anti-misaddition system for alloy powder production also includes a floor scale 110. A transfer trolley 9 can be moved to the top of the floor scale 110. The floor scale 110 is suitable for weighing the transfer trolley 9, the hopper 3, and the contained metal powder. The floor scale 110 is electrically connected to the control unit 4 and is suitable for sending weighing information to the control unit 4. Because the weights of the transfer trolley 9 and the hopper 3 are fixed, when weighing the metal powder inside the hopper 3, the weights of the transfer trolley 9 and the hopper 3 can be considered as the gross weight. The total weight minus the gross weight gives the weight of the metal powder. Weighing the metal powder facilitates its later use. The floor scale 110 in this embodiment is existing technology, installed on the workshop floor. The transfer trolley 9 can be moved to the top of the floor scale 110 for weighing.

[0050] Preferably, a ramp is provided on one side of the weighbridge 110, and the transfer trolley 9 travels up the ramp and moves to the top of the weighbridge 110, which helps the transfer trolley 9 to move onto the weighbridge 110 and facilitates the weighing operation.

[0051] In some embodiments, please refer to Figures 1 to 2 The control unit 4 includes a PLC controller and a receiving module, a control setting module, a judgment and analysis module, a display screen, and an alarm connected to the PLC controller. The receiving module is adapted to receive information from the first identification terminal 5 and the second identification terminal 6. The control setting module is adapted to control the opening or closing of the first valve. The judgment and analysis module is adapted to judge and analyze whether the information of the second identification terminal 6 is the same as the information of the first identification terminal 5. The display screen is adapted to display the received information. The alarm is adapted to issue an alarm signal when the information of the first identification terminal 5 and the second identification terminal 6 is different. In this embodiment, the receiving module, control setting module, judgment and analysis module, display screen, and alarm can all adopt existing technologies and can all achieve the above functions or effects, thereby meeting the usage requirements. The control setting module can set the above-mentioned preset weight information range, and this range value can be adjusted and changed according to the capacity of the hopper 3.

[0052] In some embodiments, please refer to Figures 1 to 2 The multi-stage screening unit 1 is connected to a monitoring component 120, which monitors the multi-stage screening unit during operation. The monitoring component 120 is electrically connected to the control unit 4 and its operation is controlled by the control unit 4. In this embodiment, the monitoring component 120 is a prior art monitor that can perform real-time monitoring of the multi-stage screening unit 1 during operation, thereby allowing the control unit 4 to clearly see the screening operation status of the metal powder, thus providing support for the reasonable operation of this invention.

[0053] Specifically, the monitor is fixedly connected to the side wall of the multi-stage screening unit 1 via a mounting bracket, without affecting the normal use of the multi-stage screening unit 1. The monitoring angle or direction of the monitor can be adjusted, and it can capture or record multiple directions, angles or positions, thereby meeting the real-time monitoring of the multi-stage screening unit 1.

[0054] 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 intelligent powder sieving and error prevention system for alloy powder production, characterized in that, include: A multi-stage screening unit is used to screen metal powder and output the screened metal powder. The multi-stage screening unit has a first inlet and multiple first outlets, and the multiple first outlets are used to output metal powder of different grades respectively. Multiple raw material carts are used to hold different types of metal powder to be screened. Each raw material cart has a first identification terminal, which has variety information corresponding to the name of the metal powder contained in the raw material cart. The raw material cart is adapted to add the metal powder to be screened into the first feed inlet. Multiple hoppers, each having a second inlet at the top and a second outlet at the bottom, with a second identification terminal on the outer wall of each hopper, and each hopper being used to connect to multiple first outlets and receive metal powder output from the multi-stage screening unit, and each hopper being equipped with a first valve for closing or opening the second inlet; The control unit is electrically connected to the first identification terminal and the second identification terminal respectively and is used to receive metal powder type information. The control unit is also electrically connected to the multi-stage screening unit and the first valve and is adapted to control the opening or closing of the second feed port. When the control unit receives and determines that the information of the second identification terminal is the same as the information of the first identification terminal, it controls the first valve to open so as to input metal powder into the silo. The control unit is adapted to monitor the operation of the multi-stage screening unit. The raw material trolley has a hopper for holding metal powder to be screened. The first discharge port is located at the bottom of the hopper. One end of the conveying pipe is connected to the bottom of the hopper. The other end of the conveying pipe is inserted into the first feed port. The metal powder inside the raw material trolley enters the first feed port after passing through the conveying pipe. The conveying pipe is connected to a second valve for controlling the flow of metal powder inside the conveying pipe. When the second identification terminal information is the same as the first identification terminal information, the second valve opens. The second valve is electrically connected to the control unit, and the operation of the flow of the conveying pipe is controlled by the control unit.

2. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, A buffer chamber is provided between the conveying pipe and the first inlet. The buffer chamber is adapted to buffer the metal powder discharged from the conveying pipe. After buffering, the metal powder is discharged from the bottom of the buffer chamber and enters the multi-stage screening unit.

3. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, It also includes multiple transfer trolleys, each of which is connected to a different silo, and the transfer trolleys are used to support and transfer the silos.

4. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, It also includes multiple discharge cylinders, one end of which is connected to multiple first discharge ports and the other end of which is connected to multiple second feed ports of the silos. A discharge valve is provided at the end of the discharge cylinder away from the multi-stage screening unit. The discharge valve is adapted to control the flow of metal powder inside the discharge cylinder. The discharge valve is electrically connected to the control unit and its operation is controlled by the control unit.

5. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, Both the first identification terminal and the second identification terminal include a chip, an input module, an output module, and a communication module that are electrically connected to each other. The input module is adapted to input metal powder type information, the output module is adapted to output and display metal powder information, and the communication module is adapted to communicate with the control unit.

6. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, The silo is equipped with a weighing unit for weighing the metal powder input into the silo. The weighing unit is electrically connected to the control unit and its operation is controlled by the control unit. After weighing the metal powder, the weighing unit sends the weight information to the control unit. After receiving the weight information, the control unit analyzes and determines that if the weight information falls within the preset range of the control unit, the silo is defined as being full of metal powder.

7. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, The intelligent powder screening and anti-misfilling system for alloy powder production also includes a floor scale. The transfer trolley can move to the top of the floor scale. The floor scale is suitable for weighing the transfer trolley, the silo, and the metal powder contained therein. The floor scale is electrically connected to the control unit and is suitable for sending weighing information to the control unit.

8. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, The control unit includes a PLC controller and a receiving module, a control setting module, a judgment and analysis module, a display screen, and an alarm connected to the PLC controller. The receiving module is adapted to receive information from the first identification terminal and the second identification terminal. The control setting module is adapted to control the first valve to open or close. The judgment and analysis module is adapted to judge and analyze whether the information of the second identification terminal is the same as the information of the first identification terminal. The display screen is adapted to display the received information. The alarm is adapted to issue an alarm signal when the information of the first identification terminal and the second identification terminal are different.

9. The intelligent powder screening and error prevention system for alloy powder production as described in claim 1, characterized in that, The multi-stage screening unit is connected to a monitoring component, which is used to monitor the grading screening unit during operation. The monitoring component is electrically connected to the control unit and its operation is controlled by the control unit.

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