Intelligent powder screening and mistake adding prevention system for alloy powder production

Abstract

The invention provides an intelligent powder screening and mistake adding prevention system for alloy powder production, and belongs to the technical field of powder metallurgy. The intelligent powder screening and mistake adding prevention system comprises a raw material trolley, a multi-stage screening unit, a plurality of sets of stock bins and a control unit; the multi-stage screening unit can automatically output metal powder in a graded mode after screening the metal powder, then the metal powder can be output into the multiple bins, second feeding ports capable of being opened or closed are formed in the bins, information of the second recognition terminal and information of the first recognition terminal can be received through the control unit, and when it is judged that the information of the second recognition terminal and the information of the first recognition terminal are the same, the second feeding ports are controlled to be opened. And then metal powder can be added into the stock bin. The intelligent powder screening and mistake adding preventing system for alloy powder production has the technical effects that manual adding of powder raw materials into powder screening equipment and receiving of discharged metal powder are omitted, mistakes are prevented, and operation of the powder screening equipment can be monitored.

Description

Technical Field

[0001] The present invention belongs to the technical field of powder metallurgy, and more specifically, relates to an intelligent powder screening and error-adding prevention system for alloy powder production. Background Art

[0002] Powder metallurgy is the process of producing metal powder or using metal powder as raw material, forming and sintering it to manufacture metal materials, composite materials, and various types of products. Powder metallurgy includes both powder making and product manufacturing. While powder making is primarily a metallurgical process, powder metallurgy products often go far beyond the scope of materials and metallurgy, often involving multiple disciplines. Modern metal powder 3D printing technology, in particular, integrates mechanical engineering, CAD, reverse engineering, layered manufacturing, CNC, materials science, and laser technology, making powder metallurgy product technology a modern, multidisciplinary, and comprehensive technology.

[0003] At present, powder making requires the use of powder screening equipment and a variety of barrels for holding powders of different names. The powder screening equipment can screen different types of powders, and after screening, the powders of the corresponding names must be loaded into the barrels of the same names to achieve a one-to-one correspondence. However, during the powder screening process, it is necessary to manually add powder to the powder screening equipment and receive the powder discharged from the powder screening equipment. Moreover, during the operation of the powder screening equipment, there is a lack of monitoring of the equipment's operation and quality inspection of the output products, as well as a lack of measures to prevent the wrong powder to be screened from being added to the equipment. However, if different types of alloy powders are added incorrectly or errors are made due to manual operation, the entire batch of products cannot be delivered for use, and errors in a single batch of products can lead to huge economic losses.

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

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

[0006] To achieve the above objectives, the present invention adopts the following technical solution: to provide an intelligent powder screening and error-prevention system for alloy powder production, comprising: A multi-stage screening unit, for screening metal powder and outputting the screened metal powder, the multi-stage screening unit having a first feed port and a plurality of first discharge ports, wherein the plurality of first discharge ports are respectively used to output metal powder of different grades; A plurality of raw material carts, each for holding different types of metal powder to be screened, each of the raw material carts having a first identification terminal having type information corresponding to the name of the metal powder held in the raw material cart, and the raw material carts being suitable for adding the metal powder to be screened into the first feed port; A plurality of silos, each having a second feed port at an upper end and a second discharge port at a lower end, wherein a second identification terminal is provided on an outer wall of the silo, wherein the plurality of silos are respectively connected to the plurality of first discharge ports and receive the metal powder output from the multi-stage screening unit, and each of the plurality of silos is provided with a first valve for closing or opening the second feed port; A control unit is electrically connected to the first identification terminal and the second identification terminal respectively and is used to receive metal powder variety information. The control unit is also electrically connected to the multi-stage screening unit and the first valve and is suitable for controlling the opening or closing of the second feed port. When the control unit receives and determines that the second identification terminal information is the same as the first identification terminal information, it controls the first valve to open to input metal powder into the silo. The control unit is suitable for monitoring the operation of the multi-stage screening unit.

[0007] In one possible implementation, the raw material cart has a hopper for holding metal powder to be screened, the first discharge port is arranged at the bottom of the hopper, the bottom of the hopper is connected to one end of a feeding pipe, the other end of the feeding pipe is used to be inserted into the first feeding port, and the metal powder inside the raw material cart enters the first feeding port after passing through the feeding pipe; the feeding pipe is connected to a second valve for controlling the on and off of the metal powder inside the feeding pipe, and the second valve is opened when the second identification terminal information is the same as the first identification terminal information, and the second valve is electrically connected to the control unit and the on and off action of the feeding pipe is controlled by the control unit.

[0008] In one possible implementation, a buffer bin is provided between the feed pipeline and the first feed port, and the buffer bin is suitable for buffering the metal powder discharged from the feed pipeline. After buffering, the metal powder is discharged from the bottom of the buffer bin and enters the interior of the multi-stage screening unit.

[0009] In a possible implementation, the intelligent powder screening and mis-addition prevention system for alloy powder production further includes a plurality of transfer carts, which are respectively connected to a plurality of the silos, and the transfer carts are used to support and transfer the silos.

[0010] In one possible implementation, the intelligent powder screening and anti-misaddition system for alloy powder production also includes multiple discharge barrels, one end of the multiple discharge barrels corresponds to the multiple first discharge ports, and the other end corresponds to the second feed ports of the multiple silos. A discharge valve is provided at one end of the discharge barrel away from the multi-stage screening unit. The discharge valve is suitable for controlling the on-off of the metal powder inside the discharge barrel. The discharge valve is electrically connected to the control unit and its operation is controlled by the control unit.

[0011] In one possible implementation, the first identification terminal and the second identification terminal both 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 metal powder variety information, the output module is suitable for outputting and displaying metal powder information, and the communication module is suitable for communicating with the control unit.

[0012] In one possible implementation, a weighing unit is provided inside the silo, and the weighing unit is configured 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 weight information to the control unit. After receiving the weight information, the control unit analyzes and determines that if it meets the weight information range preset by the control unit, it is defined that the metal powder inside the silo is full.

[0013] In one possible implementation, the intelligent powder screening and anti-misaddition system for alloy powder production also includes a floor scale, the transfer cart can be moved to the upper end of the floor scale, the floor scale is suitable for weighing the transfer cart, the silo and the metal powder contained therein, and the floor scale is electrically connected to the control unit and is suitable for sending weighing information to the control unit.

[0014] 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 suitable for receiving information of the first identification terminal and the second identification terminal, the control setting module is suitable for controlling the opening or closing of the first valve, the judgment and analysis module is suitable for judging and analyzing whether the information of the second identification terminal is the same as the information of the first identification terminal, the display screen is suitable for displaying the received information, and the alarm is suitable for issuing an alarm signal when the information of the first identification terminal and the second identification terminal are different.

[0015] In a possible implementation, the multi-stage screening unit is connected to a monitoring component, which is used to monitor the graded screening unit during operation. The monitoring component is electrically connected to the control unit and its operation is controlled by the control unit.

[0016] The beneficial effect of the intelligent powder screening and anti-misaddition system for alloy powder production provided by the present invention is that: compared with the existing technology, the intelligent powder screening and anti-misaddition system for alloy powder production provided by the present invention includes a multi-stage screening unit, a raw material trolley, multiple groups of silos 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 output the metal powder in grades after screening, and then output it to multiple silos. The silos have a second feed port that can be opened or closed. The control unit can receive the second identification terminal information and the first identification terminal information through the control unit, and when the information of the two is the same, it controls the second feed port to open, and then metal powder can be added to the silo. The intelligent powder screening and anti-misaddition system for alloy powder production provided by the present invention has the technical effect 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 being able to monitor the operation of the powder screening equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of an intelligent powder screening and mis-addition prevention system for alloy powder production provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a silo and transfer trolley for an intelligent powder screening and mis-addition prevention system for alloy powder production provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the silo and transfer trolley of the intelligent powder screening and anti-misaddition system for alloy powder production provided by another embodiment of the present invention.

[0019] Description of reference numerals: 1. Multi-stage screening unit; 11. First feed port; 12. First discharge port; 2. Raw material trolley; 21. Hopper; 22. Feed pipeline; 3. Silo; 31. Second feed port; 32. Second discharge port; 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. Wheel; 10. Discharge barrel; 110. Floor scale; 120. Monitoring component. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0025] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0027] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0028] Please also refer to Figures 1 to 2, the intelligent powder screening and anti-misaddition system for alloy powder production provided by the present invention is now described. The intelligent powder screening and anti-misaddition system for alloy powder production includes a multi-stage screening unit 1, a raw material trolley 2, multiple silos 3 and a control unit 4. The multi-stage screening unit 1 is used to screen metal powder and can output the screened metal powder. The multi-stage screening unit 1 has a first feed port 11 and multiple first discharge ports 12. The multiple first discharge ports 12 are respectively used to output metal powders of different levels; the multiple raw material trolleys 2 are respectively used to hold different varieties of metal powders to be screened. Each raw material trolley 2 has a first identification terminal 5. The first identification terminal 5 has variety information corresponding to the name of the metal powder contained in the raw material trolley 2. The raw material trolley 2 is suitable for adding the metal powder to be screened into the first feed port 11; the multiple silos 3 have a second feed port 31 at the upper end and a first discharge port 32 at the lower end. There are two discharge ports 32, and a second identification terminal 6 is provided on the outer wall of the silo 3. The multiple silos 3 are respectively used to connect to the corresponding multiple first discharge ports 12 and receive the metal powder output from the multi-stage screening unit 1. The multiple silos 3 are all provided with a first valve for closing or opening the second feed port 31 (which is the existing technology 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 the metal powder variety information. The control unit 4 is also electrically connected to the multi-stage screening unit 1 and the first valve and is suitable for controlling the second feed port 31 to open or close. When the control unit 4 receives and determines 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 to input metal powder into the silo 3. The control unit 4 is suitable for monitoring the operation of the multi-stage screening unit 1.

[0029] Compared with the prior art, the intelligent powder screening and error-addition prevention system for alloy powder production provided by the present invention has a raw material trolley 2 that can add metal powder to be screened into a multi-stage screening unit 1. After screening the metal powder, the multi-stage screening unit 1 can automatically output the metal powder in grades, and then output it into multiple silos 3. The silos 3 have a second feed port 31 that can be opened or closed. The control unit 4 can receive information from the second identification terminal 6 and the first identification terminal 5, and when the information from the second identification terminal 6 and the first identification terminal 5 is determined and analyzed to be the same, the second feed port 31 is controlled to open, thereby adding metal powder to the silo 3. The intelligent powder screening and error-addition prevention system for alloy powder production provided by the present invention has the technical effect 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 being able to monitor the operation of the powder screening equipment.

[0030] In this embodiment, the multi-stage screening unit 1 is a multi-stage screening machine or a multi-layer grading screen or a multi-layer vibrating screen in the prior art, which can screen the alloy powder, and after screening, it is divided into a plurality of powders of different sizes, and then falls into different silos 3 respectively to achieve classified storage. The raw material trolley 2 can automatically add metal powder to the multi-stage screening unit 1, and the amount of addition can be controlled and adjusted. In this embodiment, the control unit 4 has multiple functions, including multiple units or modules, which control the opening and closing of the first valve, thereby preventing the screened metal powder from being mistakenly added to different silos 3, effectively preventing the occurrence of the wrong addition phenomenon. The first feed port 11 is located at the upper end of the multi-stage screening unit 1, and the first discharge port 12 is located at its side position.

[0031] The first identification terminal 5 and the second identification terminal 6 have the same structure and function. Metal powder information can be pre-entered on both terminals and sent to the control unit 4. The control unit 4 then determines whether the information on the first and second identification terminals is identical. If so, the control unit opens the first valve, allowing the metal powder to fall into the silo 3 and store it properly. Conversely, if the information on the first and second identification terminals is different, the control unit closes the first valve, preventing the metal powder from entering the silo 3 and preventing storage. This serves to alert staff and effectively prevents errors.

[0032] In order to effectively prevent the wrong metal powder from being added to the multi-stage screening unit 1, in some embodiments, refer to Figures 1 to 2 The raw material cart 2 has a hopper 21 for holding the metal powder to be screened. The first discharge port 12 is located at the bottom of the hopper 21. One end of a feed pipe 22 is connected to the bottom of the hopper 21. The other end of the feed pipe 22 is inserted into the first feed port 11. The metal powder in the raw material cart 2 enters the first feed port 11 after passing through the feed pipe 22. The feed pipe 22 is connected to a second valve (conventional technology, not shown in the figure) for controlling the flow of metal powder within the feed pipe 22. The second valve opens when the information from the second identification terminal 6 matches the information from the first identification terminal 5. The second valve is electrically connected to the control unit 4, and the flow of metal powder from the feed 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. This effectively prevents mis-addition and errors, and avoids the cross- or mixed screening of multiple types of metal powder. In this embodiment, the feed pipe 22 is arranged vertically, 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, and the amount of metal powder inside the hopper 21 can be pre-controlled.

[0033] Specifically, the first valve and the second valve have the same structure, and are both electrically controlled devices that can be controlled to achieve switching actions. For details, please refer to the prior art.

[0034] In some embodiments, see Figures 1 to 2 A buffer bin 7 is provided between the feed pipe 22 and the first feed port 11. The buffer bin 7 is suitable for buffering the metal powder discharged from the feed pipe 22. After buffering, the metal powder is discharged from the bottom of the buffer bin 7 and enters the multi-stage screening unit 1. In this embodiment, the buffer bin 7 is funnel-shaped, with an open upper end and a smaller lower end. The lower end of the feed pipe 22 can be inserted into the buffer bin 7 to input metal powder into the buffer bin 7. The purpose of the buffer bin 7 is to prevent a large amount of metal powder from being added to the multi-stage screening unit 1, so that the metal powder can be evenly added to the multi-stage screening unit 1.

[0035] Preferably, a partition wall 8 is provided between the buffer bin 7 and the raw material trolley 2 , and a through hole is vertically passed through the partition wall 8 , through which the material delivery pipe 22 passes. The raw material trolley 2 can travel on the upper end of the partition wall 8 , and the buffer bin 7 can be fixedly connected to the partition wall 8 .

[0036] To achieve the transfer of the silo 3, in some embodiments, refer to Figures 1 to 2 The intelligent powder screening and mis-addition prevention system for alloy powder production also includes multiple transfer carts 9, which are respectively connected to multiple silos 3. The transfer carts 9 are used to support the transfer silos 3. The transfer carts 9 have four wheels at the bottom, which can support the silos 3 and move them to any location, making it easier to use the metal powder later and providing convenience.

[0037] The transfer trolley 9 includes a body 91 and a handle 92 . An installation space for installing the silo 3 is formed in the middle of the body 91 . The handle 92 is provided on the side of the body 91 . A plurality of wheels 93 are provided at the bottom of the body 91 .

[0038] In some embodiments, see Figures 1 to 2 The intelligent powder screening and error-prevention system for alloy powder production also includes multiple discharge barrels 10, each of which has one end connected to a plurality of first discharge ports 12 and the other end connected to a plurality of second feed ports 31 of the silos 3. A discharge valve (not shown in the figure due to prior art) is provided at the end of the discharge barrel 10 away from the multi-stage screening unit 1. The discharge valve is suitable for controlling the flow of metal powder within the discharge barrel 10. The discharge valve is electrically connected to a 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 described above, and both can achieve on-off control during the metal powder conveying process, thereby effectively preventing errors in the metal powder screening and storage processes.

[0039] Specifically, the discharge valve can be a rotary valve, a butterfly valve, etc., which is electrically controlled, that is, the motor can drive the discharge valve to operate, thereby realizing the on and off of the metal powder conveying process, that is, it can open the discharge barrel 10 to allow the powder to flow into the interior of the silo 3, and can also close the discharge barrel 10 to prevent it from flowing into the interior of the silo 3.

[0040] In some embodiments, see 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 metal powder type information, the output module is suitable for outputting and displaying 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, the output module, and the communication module are all existing technologies that can achieve the above functions and are all electrically connected to the PLC controller. The input module is a key-type module that can be manually controlled to pre-set metal powder type information, thereby transmitting 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 the information is the same, an action is executed. The first valve, the second valve, and the discharge valve are usually in a closed state, that is, a normally closed state.

[0041] In some embodiments, see Figures 1 to 2 A weighing unit 33 is provided inside the silo 3. The weighing unit 33 is configured to weigh the metal powder input into the silo 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 weight information to the control unit 4. After receiving the weight information, the control unit 4 analyzes and determines that if it meets the weight information range preset by the control unit 4, it is defined that the metal powder inside the silo 3 is full. In this embodiment, the weighing unit 33 includes a weighing sensor, a controller, etc., and is provided in the middle position of the silo 3 in the vertical direction. It can weigh the metal powder entering the silo 3. After weighing, the metal powder can be poured into the bottom of the silo 3. It can also be weighed twice or multiple times. After weighing again, the metal powder can be poured into the bottom of the silo 3, thereby achieving multiple weighing of the metal powder. After weighing, the weight information can be sent to the control unit 4 and displayed. The control unit 4 can control the operation of the weighing unit 33. A module that can control the operation of the weighing unit 33 is provided on the control unit 4. A weight information range is preset on the control unit 4. When the total weight information after weighing is within the preset range, it is considered that the metal powder inside the silo 3 is full, and the metal powder will not be received and contained. At this time, a new silo 3 can be replaced.

[0042] To achieve the weighing of metal powder, in some embodiments, refer to Figure 3The intelligent powder screening and anti-misaddition system for alloy powder production also includes a floor scale 110. The transfer cart 9 can be moved to the upper end of the floor scale 110. The floor scale 110 is suitable for weighing the transfer cart 9, the silo 3 and the metal powder contained therein. 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 weight of the transfer cart 9 and the silo 3 is a fixed weight, when weighing the metal powder inside the silo 3, the weight of the transfer cart 9 and the silo 3 can be regarded as the gross weight, and the total weight minus the gross weight is the weight of the metal powder. Weighing the metal powder can be beneficial for later use. The floor scale 110 in this embodiment is a prior art and is set on the floor of the workshop. It can be moved to the upper end of the floor scale 110 by pushing the transfer cart 9 for weighing.

[0043] Preferably, a slope is provided on one side of the floor scale 110, and the transfer trolley 9 travels along the slope and moves to the upper end of the floor scale 110, thereby facilitating the transfer trolley 9 to move onto the floor scale 110 and facilitating weighing operations.

[0044] In some embodiments, see 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 suitable for receiving information from the first identification terminal 5 and the second identification terminal 6. The control setting module is suitable for controlling the opening or closing of the first valve. The judgment and analysis module is suitable for judging and analyzing whether the information from the second identification terminal 6 is the same as the information from the first identification terminal 5. The display screen is suitable for displaying the received information. The alarm is suitable for sending an alarm signal when the information from the first identification terminal 5 and the second identification terminal 6 is different. The receiving module, control setting module, judgment and analysis module, display screen, and alarm in this embodiment can all adopt existing technologies and can achieve the above functions or effects, thereby meeting the requirements. The above-mentioned preset weight information range can be set on the control setting module, and the range value can be adjusted and changed according to the capacity of the silo 3.

[0045] In some embodiments, see Figures 1 to 2 The multi-stage screening unit 1 is connected to a monitoring component 120, which is used to monitor the operation of the graded screening unit. 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 monitor in the prior art, which can realize real-time monitoring of the multi-stage screening unit 1 during operation, so that the screening operation status of the metal powder can be clearly seen on the control unit 4, thereby providing support for the reasonable operation of the present invention.

[0046] Specifically, the monitor is fixedly connected to the side wall of the multi-stage screening unit 1 through a mounting frame, which does not affect the normal use of the multi-stage screening unit 1. The monitoring angle or direction of the monitor can be adjusted, and it can shoot or record multiple directions or angles or positions, thereby meeting the real-time monitoring of the multi-stage screening unit 1.

[0047] 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 in the scope of protection of the present invention.

Claims

1. Intelligent powder screening and anti-misaddition system for alloy powder production, characterized by: include: A multi-stage screening unit, for screening metal powder and outputting the screened metal powder, the multi-stage screening unit having a first feed port and a plurality of first discharge ports, wherein the plurality of first discharge ports are respectively used to output metal powder of different grades; A plurality of raw material carts, each for holding different types of metal powder to be screened, each of the raw material carts having a first identification terminal having type information corresponding to the name of the metal powder held in the raw material cart, and the raw material carts being suitable for adding the metal powder to be screened into the first feed port; A plurality of silos, each having a second feed port at an upper end and a second discharge port at a lower end, wherein a second identification terminal is provided on an outer wall of the silo, wherein the plurality of silos are respectively connected to the plurality of first discharge ports and receive the metal powder output from the multi-stage screening unit, and each of the plurality of silos is provided with a first valve for closing or opening the second feed port; A control unit is electrically connected to the first identification terminal and the second identification terminal respectively and is used to receive metal powder variety information. The control unit is also electrically connected to the multi-stage screening unit and the first valve and is suitable for controlling the opening or closing of the second feed port. When the control unit receives and determines that the second identification terminal information is the same as the first identification terminal information, it controls the first valve to open to input metal powder into the silo. The control unit is suitable for monitoring the operation of the multi-stage screening unit.

2. The intelligent powder screening and mis-addition prevention system for alloy powder production according to claim 1, characterized in that: The raw material cart has a hopper for holding metal powder to be screened, the first discharge port is arranged at the bottom of the hopper, the bottom of the hopper is connected to one end of a feeding pipe, the other end of the feeding pipe is used to be inserted into the first feeding port, and the metal powder inside the raw material cart enters the first feeding port after passing through the feeding pipe; the feeding pipe is connected to a second valve for controlling the on and off of the metal powder inside the feeding pipe, and the second valve is opened when the second identification terminal information is the same as the first identification terminal information, and the second valve is electrically connected to the control unit and the on and off action of the feeding pipe is controlled by the control unit.

3. The intelligent powder screening and error-prevention system for alloy powder production according to claim 2, characterized in that: A buffer bin is provided between the feeding pipeline and the first feeding port, and the buffer bin is suitable for buffering the metal powder discharged from the feeding pipeline. After buffering, the metal powder is discharged from the bottom of the buffer bin and enters the interior of the multi-stage screening unit.

4. The intelligent powder screening and mis-addition prevention system for alloy powder production according to claim 1, characterized in that: It also includes a plurality of transfer carts, which are respectively connected to a plurality of the silos, and the transfer carts are used to support and transfer the silos.

5. The intelligent powder screening and error-prevention system for alloy powder production according to claim 1, characterized in that: It also includes multiple discharge barrels, one end of each of which corresponds to the multiple first discharge ports, and the other end corresponds to the multiple second feed ports of the silo. A discharge valve is provided at one end of the discharge barrel away from the multi-stage screening unit. The discharge valve is suitable for controlling the on and off of the metal powder inside the discharge barrel. The discharge valve is electrically connected to the control unit and its operation is controlled by the control unit.

6. The intelligent powder screening and mis-addition prevention system for alloy powder production according to claim 1, characterized in that: The first identification terminal and the second identification terminal both 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 metal powder variety information, the output module is suitable for outputting and displaying metal powder information, and the communication module is suitable for communicating with the control unit.

7. The intelligent powder screening and error-prevention system for alloy powder production according to claim 1, characterized in that: A weighing unit is provided inside the silo, and the weighing unit is configured 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 weight information to the control unit. After receiving the weight information, the control unit analyzes and determines that if it meets the weight information range preset by the control unit, it is defined that the metal powder inside the silo is full.

8. The intelligent powder screening and mis-addition prevention system for alloy powder production according to claim 2, characterized in that: The intelligent powder screening and anti-misaddition system for alloy powder production also includes a floor scale. The transfer cart can be moved to the upper end of the floor scale. The floor scale is suitable for weighing the transfer cart, 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.

9. The intelligent powder screening and mis-addition prevention system for alloy powder production according to 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 suitable for receiving information from the first identification terminal and the second identification terminal. The control setting module is suitable for controlling the opening or closing of the first valve. The judgment and analysis module is suitable for judging and analyzing whether the information of the second identification terminal is the same as the information of the first identification terminal. The display screen is suitable for displaying the received information. The alarm is suitable for issuing an alarm signal when the information of the first identification terminal and the second identification terminal are different.

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

Images