Automatic foreign matter cleaning device for flat screen of magnetic separator

Abstract

The invention discloses an automatic foreign matter cleaning device for a flat screen of a magnetic separator, which is used for automatically cleaning foreign matters accumulated on a screen surface in a to-be-cleaned channel, and comprises a cleaning scraper movably arranged on the to-be-cleaned channel, the working states of the cleaning scraper comprise a first state and a second state, and when the cleaning scraper works in the first state, the cleaning scraper is driven by the second state to rotate; when the cleaning scraping plate works in the first state, the cleaning scraping plate falls into the to-be-cleaned channel and moves in the to-be-cleaned channel so as to scrape away foreign matter accumulated on the screen surface, and when the cleaning scraping plate works in the second state, the cleaning scraping plate ascends to the position above the to-be-cleaned channel so as to release the materials; the image acquisition module is located above the to-be-cleaned channel, the detection end of the image acquisition module faces the to-be-cleaned channel, and the image acquisition module is used for acquiring foreign matter quantity information of the to-be-cleaned channel in real time; and the control module is connected with the image acquisition module, and the control module is used for receiving the foreign matter amount information transmitted by the image acquisition module, comparing the foreign matter amount information with a preset range and controlling the cleaning scraper to move based on a comparison result.

Description

Technical Field

[0001] The invention belongs to the technical field of visual detection, and in particular relates to an automatic foreign matter cleaning device for a flat screen of a magnetic separator. Background Art

[0002] In many industrial production and material transportation scenarios, the smooth flow of channels is crucial to production efficiency and stable system operation. However, in actual applications, channels to be cleaned often face the problem of foreign matter accumulation. Traditional cleaning methods usually rely on manual operations, which not only consumes a lot of manpower and time, but is also inefficient and may affect production progress due to untimely cleaning. At the same time, manual cleaning makes it difficult to monitor the amount of foreign matter in the channel in real time, and it is impossible to accurately determine when it is most appropriate to clean. Summary of the invention

[0003] In view of this, the present invention provides an automatic foreign matter cleaning device for a flat screen of a magnetic separator, the main purpose of which is to automatically clean foreign matter accumulated on the screen surface in a cleaning channel.

[0004] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0005] The present invention provides a device for automatically cleaning foreign matter from a flat screen of a magnetic separator, comprising:

[0006] A cleaning scraper, the cleaning scraper is movably arranged on the channel to be cleaned, and the working state of the cleaning scraper includes a first state and a second state. When the cleaning scraper is working in the first state, the cleaning scraper falls into the channel to be cleaned and moves in the channel to be cleaned to scrape off foreign matter accumulated on the screen surface. When the cleaning scraper is working in the second state, the cleaning scraper rises above the channel to be cleaned to release the material.

[0007] An image acquisition module, the image acquisition module is located above the channel to be cleaned, the detection end of the image acquisition module is arranged toward the channel to be cleaned, and the image acquisition module is used to obtain information on the amount of foreign matter in the channel to be cleaned in real time;

[0008] A control module is connected to the image acquisition module, and is used to receive the foreign matter amount information transmitted by the image acquisition module, and compare it with a preset setting range, and control the movement of the cleaning scraper based on the comparison result.

[0009] Optionally, the magnetic separator flat screen foreign matter automatic cleaning device also includes:

[0010] An isolation baffle is liftably arranged on the channel to be cleaned. When the cleaning scraper scrapes away the foreign matter accumulated on the screen surface, the isolation baffle falls into the channel to be cleaned. The isolation baffle is located on the upstream side of the cleaning scraper in the material transmission direction.

[0011] Optionally, the isolation baffle can also move in the channel to be cleaned, and the moving path of the isolation baffle is part of the moving path of the cleaning scraper. When the cleaning scraper scrapes away the foreign matter accumulated on the screen surface, the isolation baffle and the cleaning scraper move synchronously a first distance along the material transmission direction.

[0012] Optionally, a first sensor is provided at the initial position of the isolation baffle and the cleaning scraper in the channel to be cleaned where the isolation baffle and the cleaning scraper move synchronously along the material transmission direction for the first distance, and the first sensor is connected to the control module. The first sensor is used to sense the position information of the isolation baffle and the cleaning scraper. When the first sensor is triggered, the control module controls the isolation baffle and the cleaning scraper to move synchronously along the material transmission direction.

[0013] Optionally, a second sensor is provided at the end position of the isolation baffle and the cleaning scraper in the channel to be cleaned where the isolation baffle and the cleaning scraper move synchronously along the material transmission direction for the first distance, and the second sensor is connected to the control module. The second sensor is used to sense the position information of the isolation baffle. When the second sensor is triggered, the control module controls the isolation baffle to stop moving.

[0014] Optionally, a third sensor is provided at a position near the exit in the channel to be cleaned, and the third sensor is connected to the control module. The third sensor is used to sense the position information of the cleaning scraper. When the third sensor is triggered, the control module controls the cleaning scraper to move in the opposite direction of the material transmission direction.

[0015] Optionally, a fourth sensor is further provided at the end position of the first distance where the isolation baffle and the cleaning scraper in the channel to be cleaned move synchronously along the material transmission direction, and the fourth sensor is connected to the control module. The fourth sensor is used to sense the position information of the cleaning scraper. When the fourth sensor is triggered, the control module controls the cleaning scraper and the isolation baffle to move synchronously in the opposite direction of the material transmission direction.

[0016] Optionally, the total length of the channel to be cleaned is A, and the initial position of the isolation baffle and the cleaning scraper in the channel to be cleaned that move synchronously along the material transmission direction for the first distance is A / 3 away from the entrance of the channel to be cleaned, and the first distance is also A / 3.

[0017] Optionally, the magnetic separator flat screen foreign matter automatic cleaning device also includes:

[0018] A discharge gate is liftably arranged at the outlet of the channel to be cleaned. When the cleaning scraper is in the first state, the discharge gate rises to the top of the channel to be cleaned. When the cleaning scraper is in the second state, the discharge gate falls into the channel to be cleaned.

[0019] By means of the above technical solution, the present invention has at least the following beneficial effects:

[0020] The automatic cleaning device for foreign matter on the flat screen of a magnetic separator provided by an embodiment of the present invention can automatically clean according to the actual amount of foreign matter on the screen surface in the channel to be cleaned. First, when the image acquisition module detects that the amount of foreign matter reaches a certain level, the control module can promptly control the cleaning scraper to drop into the channel to be cleaned for scraping operations, ensuring that the normal operation of the channel to be cleaned will not be affected by the accumulation of foreign matter, thereby improving the pertinence and efficiency of cleaning. Secondly, the image acquisition module obtains foreign matter amount information in real time, and the control module compares it with the preset setting range to achieve precise control of the cleaning scraper, which can avoid unnecessary cleaning operations and save energy and equipment operating costs. In addition, the automatic cleaning device for foreign matter on the flat screen of a magnetic separator can also automatically adjust the working state of the cleaning scraper according to the actual situation on the screen surface in the channel to be cleaned. When cleaning is not required, the cleaning scraper rises to the top of the channel to release the material, which does not affect the normal transportation of the material, thereby improving the operating efficiency and intelligence level of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of one step of the automatic cleaning device for foreign matter on a flat screen of a magnetic separator according to an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of one step of the automatic cleaning device for foreign matter on a flat screen of a magnetic separator according to an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of one step of the automatic cleaning device for foreign matter on a flat screen of a magnetic separator according to an embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of one step of the automatic cleaning device for foreign matter on a flat screen of a magnetic separator according to an embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of one step of the automatic cleaning device for foreign matter on a flat screen of a magnetic separator according to an embodiment of the present invention;

[0026] Figure 6 This is a structural schematic diagram of one step of the automatic cleaning device for foreign matter on a flat screen of a magnetic separator according to an embodiment of the present invention.

[0027] The reference numerals are as follows:

[0028] 1. Cleaning scraper; 2. Image acquisition module; 3. Isolation baffle; 4. First sensor; 5. Second sensor; 6. Third sensor; 7. Fourth sensor; 8. Discharge gate; 9. Channel to be cleaned. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] See also Figures 1 to 6As shown, an automatic cleaning device for foreign matter on a flat screen of a magnetic separator provided by an embodiment of the present invention comprises: a cleaning scraper 1, which is movably arranged on a channel 9 to be cleaned, and the working state of the cleaning scraper 1 comprises a first state and a second state. When the cleaning scraper 1 is in the first state, the cleaning scraper 1 falls into the channel 9 to be cleaned and moves in the channel 9 to be cleaned to scrape off foreign matter accumulated on the screen surface. When the cleaning scraper 1 is in the second state, the cleaning scraper 1 rises above the channel 9 to be cleaned to release the material; an image acquisition module 2, which is located above the channel 9 to be cleaned, and the detection end of the image acquisition module 2 is arranged toward the channel 9 to be cleaned, and the image acquisition module 2 is used to obtain foreign matter amount information of the channel 9 to be cleaned in real time; a control module, which is connected to the image acquisition module 2, and the control module is used to receive the foreign matter amount information transmitted by the image acquisition module 2, and compare it with a preset setting range, and control the movement of the cleaning scraper 1 based on the comparison result.

[0034] In this embodiment, the channel to be cleaned 9 is a feed channel, and a flat screen is arranged in the feed channel. The above-mentioned magnetic separator flat screen foreign body automatic cleaning device is used to automatically clean foreign bodies on the screen surface in the feed channel.

[0035] In this embodiment, the automatic cleaning device for foreign matter on the flat screen of the magnetic separator can automatically clean according to the actual amount of foreign matter on the screen surface in the channel 9 to be cleaned. First, when the image acquisition module 2 detects that the amount of foreign matter reaches a certain level, the control module can promptly control the cleaning scraper 1 to fall into the channel 9 to be cleaned for scraping operations, ensuring that the normal operation will not be affected by the accumulation of foreign matter on the screen surface in the channel 9 to be cleaned, thereby improving the pertinence and efficiency of cleaning. Secondly, the image acquisition module 2 obtains the foreign matter amount information in real time, and the control module compares it with the preset setting range, thereby realizing the precise control of the cleaning scraper 1, avoiding unnecessary cleaning operations, and saving energy and equipment operating costs. In addition, the automatic cleaning device for foreign matter on the flat screen of the magnetic separator can also automatically adjust the working state of the cleaning scraper 1 according to the actual situation on the screen surface in the channel 9 to be cleaned. When cleaning is not required, the cleaning scraper 1 rises to the top of the channel to release the material, which does not affect the normal transportation of the material, thereby improving the operating efficiency and intelligence level of the entire system.

[0036] Among them, in some specific examples, the cleaning scraper 1 is movably arranged in the channel 9 to be cleaned as follows: vertical guide rails are installed on both sides of the channel 9 to be cleaned, and sliders adapted to the guide rails are installed on both sides of the cleaning scraper 1 to ensure that the cleaning scraper 1 can be lifted and lowered in the vertical direction. At the same time, a horizontal guide rail is installed above the channel 9 to be cleaned, and the cleaning scraper 1 is connected to the slider on the horizontal guide rail through a connecting device to achieve horizontal movement. In addition, a drive motor is equipped, which is connected to the motion mechanism in the vertical and horizontal directions through a transmission device (such as a chain, a belt, a gear, etc.) to provide power for it; in other specific examples, the cleaning scraper 1 is movably arranged in the channel 9 to be cleaned as follows: a retractable mechanical arm is used as the lifting mechanism of the cleaning scraper 1, and the mechanical arm is installed on a mobile platform. The mobile platform can adopt a track design, and tracks are laid on both sides of the channel 9 to be cleaned, and the mobile platform moves on the track through rollers. At the same time, a driving device, such as a motor, a hydraulic system, etc., is equipped to control the telescopic movement of the mechanical arm and the movement of the mobile platform respectively.

[0037] Specifically, in actual application, when working in the first state, the cleaning scraper 1 will move downward and fall into the channel 9 to be cleaned. Once the cleaning scraper 1 falls into the channel 9 to be cleaned, the cleaning scraper 1 can be moved. The purpose of this movement process is to scrape off various foreign objects accumulated in the channel 9 to be cleaned. For example, in some industrial production processes, the channel 9 to be cleaned may accumulate dust, small particles of impurities or other foreign objects due to material transmission and other reasons. The movement of the cleaning scraper 1 can effectively scrape these foreign objects off the wall of the channel 9 to be cleaned or push them to a specific position for subsequent processing; when working in the second state, the cleaning scraper 1 will rise above the channel 9 to be cleaned. At this time, the material can be released. When cleaning work is not required, the cleaning scraper 1 is above the channel 9 to be cleaned to ensure that the material passes smoothly in the channel 9 to be cleaned without being hindered by the cleaning scraper 1.

[0038] The image acquisition module 2 is placed above the channel 9 to be cleaned, and the detection end of the image acquisition module 2 is arranged toward the channel 9 to be cleaned, so that the amount of foreign matter in the channel 9 to be cleaned can be obtained in real time. The image acquisition module 2 may capture the image in the channel 9 to be cleaned by a camera or other image sensor, and then use image recognition and analysis technology to determine the number, size and distribution of foreign matter in the channel 9 to be cleaned. For example, the image acquisition module 2 can identify foreign matter based on the color, shape, texture and other features in the image, and estimate the degree of accumulation of foreign matter.

[0039] Specifically, the image acquisition module 2 is connected to the control module, and the function of the control module is to receive the foreign matter amount information transmitted by the image acquisition module 2. A preset setting range of the foreign matter amount is preset inside the control module. After receiving the foreign matter amount information, the control module will compare the foreign matter amount information with the preset setting range. If it is determined that the foreign matter amount information in the channel 9 to be cleaned exceeds the preset setting range, the control module will issue an instruction to control the cleaning scraper 1 to enter the first state, that is, to fall into the channel 9 to be cleaned for scraping operation, so as to ensure that the channel will not affect normal production or operation due to the accumulation of foreign matter. If the foreign matter amount information in the channel 9 to be cleaned is within the preset setting range or is less, the control module will control the cleaning scraper 1 to be in the second state, rise to the top of the channel to release the material, so as to avoid unnecessary cleaning operations, thereby saving energy and reducing the operating cost of the equipment. For example, the lifting and movement of the cleaning scraper 1 are driven by a motor, and the control module can realize the motion control of the cleaning scraper 1 by controlling the start and stop, forward and reverse rotation and speed of the motor. When the cleaning scraper 1 needs to be lowered, the control module sends a signal to the vertical drive motor to make the motor rotate forward, driving the cleaning scraper 1 to descend along the vertical guide rail. When the cleaning scraper 1 needs to be raised, the control module controls the motor to reverse and raise the cleaning scraper 1. For horizontal movement, the control module sends a corresponding signal to the horizontal drive motor to control the direction and speed of the motor to realize the movement of the cleaning scraper 1 on the horizontal guide rail.

[0040] It should be noted that the image acquisition module 2 can calculate the foreign matter quantity information representing the total volume of the foreign matter based on the proportion of the foreign matter in the image and the known size of the channel 9 to be cleaned. The preset setting range sets the allowable foreign matter volume range in the channel 9 to be cleaned. When the foreign matter volume measured by the image acquisition module 2 is within this range, the system operates normally; when it exceeds the range, the cleaning scraper 1 is started.

[0041] In some possible implementations of the present invention, see Figures 1 to 6 As shown, the automatic cleaning device for foreign matter on the flat screen of the magnetic separator also includes: an isolation baffle 3, which can be raised and lowered on the channel to be cleaned 9. When the cleaning scraper 1 scrapes away foreign matter accumulated on the screen surface, the isolation baffle 3 falls into the channel to be cleaned 9. The isolation baffle 3 is on the upstream side of the cleaning scraper 1 in the material transmission direction.

[0042] In this embodiment, when the cleaning scraper 1 performs the scraping operation, the isolation baffle 3 falls into the channel to be cleaned 9 and is located on the upstream side of the cleaning scraper 1, which can effectively block the upstream material from continuing to flow downstream, and prevent new material from entering the cleaning area during the operation of the cleaning scraper 1, thereby ensuring that the cleaning scraper 1 can focus on scraping existing foreign matter, thereby improving the cleaning effect and thoroughness. At the same time, the isolation baffle 3 can prevent the material from impacting the cleaning scraper 1 and other components during the cleaning process, reducing the risk of wear and damage to the equipment. In other words, with the isolation effect of the isolation baffle 3, the cleaning scraper 1 will not be affected by the flow of upstream materials during operation, and can maintain a stable working state, thereby improving the reliability of the entire magnetic separator flat screen foreign matter automatic cleaning device.

[0043] Among them, the isolation baffle 3 and the cleaning scraper 1 can be lifted in the same manner. For example, both the isolation baffle 3 and the cleaning scraper 1 can be lifted by installing vertical guide rails on both sides of the channel and cooperating with sliders. As a result, the entire magnetic separator flat screen foreign body automatic cleaning device is more coordinated and unified during operation. When cleaning operations are required, the isolation baffle 3 and the cleaning scraper 1 can respond synchronously and perform lifting operations according to a preset program, thereby improving cleaning efficiency and reliability. At the same time, the same lifting method also facilitates the installation, commissioning and maintenance of the equipment, reducing the complexity and cost of the equipment. In addition, the isolation baffle 3 is parallel to the cleaning scraper 1. On the one hand, when the isolation baffle 3 falls into the channel 9 to be cleaned, it can better cooperate with the work of the cleaning scraper 1 because it is parallel to the cleaning scraper 1. When the cleaning scraper 1 scrapes off foreign matter, the isolation baffle 3 can effectively block the upstream material and ensure that the cleaning scraper 1 operates in a relatively independent and stable area. The parallel layout makes the space between the two more regular, reducing material accumulation or cleaning dead corners that may be caused by irregular shapes. On the other hand, this parallel setting also facilitates the unified scheduling of the control module. During the operation of the automatic cleaning device for foreign bodies on the flat screen of the magnetic separator, the control module can more accurately coordinate the actions of the isolation baffle 3 and the cleaning scraper 1. When cleaning operations are required, the lifting time and speed of both can be controlled at the same time, making the entire cleaning process more efficient and orderly.

[0044] Specifically, in actual application, when the cleaning scraper 1 is ready to scrape the foreign matter, the control module will send a signal to trigger the lifting mechanism of the isolation baffle 3, so that the isolation baffle 3 falls into the to-be-cleaned channel 9. At this time, the isolation baffle 3 is on the upstream side of the cleaning scraper 1 in the material transmission direction, playing the role of blocking the upstream material. After the cleaning scraper 1 completes the scraping operation, the control module will send a signal again to make the isolation baffle 3 rise and resume the normal material transmission of the channel.

[0045] In some possible implementations of the present invention, see Figure 2 and Figure 3 As shown, the isolation baffle 3 can also move in the channel to be cleaned 9, and the moving path of the isolation baffle 3 is part of the moving path of the cleaning scraper 1. When the cleaning scraper 1 scrapes away foreign matter accumulated on the screen surface, the isolation baffle 3 and the cleaning scraper 1 move synchronously along the material transmission direction for a first distance.

[0046] In this embodiment, when the cleaning scraper 1 starts to scrape away foreign matter, the isolation baffle 3 moves synchronously with the cleaning scraper 1, and can gradually adjust the direction and speed of the material flow instead of suddenly cutting it off, so that the material can be guided and controlled in a relatively stable process, reducing the impact force caused by sudden changes in the material flow, thereby reducing the possibility of material splashing.

[0047] Among them, the isolation baffle 3 and the cleaning scraper 1 can also move in the same way. For example, the isolation baffle 3 and the cleaning scraper 1 can both move on a preset track through rollers driven by a motor, or move along a specific guide device through a chain drive. As a result, the movement of the entire automatic cleaning device is more coordinated and unified, and it is easy to control and maintain. Furthermore, when cleaning operations are required, the control module can simultaneously issue the same movement instructions to the isolation baffle 3 and the cleaning scraper 1 to ensure that they can reach the specified position synchronously and accurately. During the movement process, the isolation baffle 3 is always on the upstream side of the cleaning scraper 1, creating a relatively stable working environment for the cleaning scraper 1 to prevent interference from upstream materials.

[0048] Among them, the moving path of the isolation baffle 3, as a part of the moving path of the cleaning scraper 1, can form a buffer zone in front of the cleaning scraper 1, so that the material has enough time to adapt to the new flow state, so as to avoid the material from being strongly blocked and splashing out in an instant. Furthermore, when the cleaning scraper 1 starts to scrape foreign matter, the control system will trigger the movement of the isolation baffle 3 at the same time. The two move synchronously along the material transmission direction for a first distance. It should be noted that the first distance is the length of the isolation baffle 3 and the cleaning scraper 1 moving synchronously along the material transmission direction when the cleaning scraper 1 scrapes foreign matter.

[0049] In some possible implementations of the present invention, see Figure 2 As shown, a first sensor 4 is provided at the initial position where the isolation baffle 3 and the cleaning scraper 1 in the channel 9 to be cleaned move synchronously for a first distance in the material transmission direction. The first sensor 4 is connected to the control module. The first sensor 4 is used to sense the position information of the isolation baffle 3 and the cleaning scraper 1. When the first sensor 4 is triggered, the control module controls the isolation baffle 3 and the cleaning scraper 1 to move synchronously in the material transmission direction.

[0050] In this embodiment, the first sensor 4 can accurately sense the position information of the isolation baffle 3 and the cleaning scraper 1. When the isolation baffle 3 and the cleaning scraper 1 are in the initial position, the first sensor 4 is triggered and transmits the signal to the control module, so that the control module can accurately grasp the timing of starting the synchronous movement of the isolation baffle 3 and the cleaning scraper 1, ensuring that the cleaning operation is started at the most appropriate time.

[0051] The first sensor 4 may be a photoelectric sensor, a proximity switch, a travel switch, etc., and it only needs to be able to sense the position information of the isolation baffle 3 and the cleaning scraper, and the present invention is not limited to this.

[0052] The initial position of the isolation baffle 3 and the cleaning scraper 1 in the to-be-cleaned channel 9 where they move synchronously for the first distance in the material transmission direction is the position of the isolation baffle 3 and the cleaning scraper 1 after they fall into the to-be-cleaned channel 9. The initial position is the starting point of the entire cleaning process. When the isolation baffle 3 and the cleaning scraper 1 are in the initial position, the isolation baffle 3 and the cleaning scraper 1 are ready to respond to the command of the control module and start to move synchronously in the material transmission direction to perform foreign matter cleaning operations.

[0053] Specifically, the first sensor 4 is installed at the initial position, and is used to monitor in real time whether the isolation baffle 3 and the cleaning scraper 1 are in the initial position. The control module is connected to the first sensor 4 through a reliable electrical connection or communication line. When the isolation baffle 3 and the cleaning scraper 1 reach the initial position, the first sensor 4 can quickly capture the signal and transmit it to the control module. The control module first analyzes and processes the signal to confirm that the position information of the isolation baffle 3 and the cleaning scraper 1 is accurate, and then the control module issues a control instruction according to the preset movement parameters, such as movement speed, distance, etc., to start the synchronous movement of the isolation baffle 3 and the cleaning scraper 1.

[0054] In some possible implementations of the present invention, see Figure 3 As shown, a second sensor 5 is provided at the end position where the isolation baffle 3 and the cleaning scraper 1 in the channel 9 to be cleaned move synchronously for a first distance along the material transmission direction. The second sensor 5 is connected to the control module. The second sensor 5 is used to sense the position information of the isolation baffle 3. When the second sensor 5 is triggered, the control module controls the isolation baffle 3 to stop moving.

[0055] In this embodiment, the second sensor 5 can accurately sense the position of the isolation baffle 3 after the first distance of synchronous movement. When the isolation baffle 3 reaches the end position, the second sensor 5 is triggered and transmits a signal to the control module, and the control module then controls the isolation baffle 3 to stop moving. This allows the isolation baffle 3 to accurately stop at the preset position, avoiding excessive movement or insufficient movement, and ensuring the accuracy and stability of the cleaning process.

[0056] The second sensor 5 may also be a photoelectric sensor, a proximity switch, a travel switch, etc., which is not limited in the present invention.

[0057] The end position of the isolation baffle 3 and the cleaning scraper 1 in the cleaning channel 9 where they move synchronously for the first distance along the material transmission direction is the position where the isolation baffle 3 and the cleaning scraper 1 move synchronously for the first distance. After the isolation baffle 3 reaches the end position, the isolation baffle 3 plays a key isolation role, which is used to prevent the upstream material from continuing to enter the cleaning area, creating a relatively stable working environment for the cleaning scraper 1, so that the cleaning scraper 1 can perform the foreign matter scraping operation more efficiently.

[0058] Specifically, the second sensor 5 is installed at the end position, and is used to monitor in real time whether the isolation baffle 3 is at the end position. The control module is connected to the second sensor 5 through a reliable electrical connection or a communication line. When the second sensor 5 senses that the isolation baffle 3 has reached the end position, the second sensor 5 will generate a trigger signal, which is immediately transmitted to the control module, informing the control module that the isolation baffle 3 has reached the specified position and needs to stop moving. After receiving the signal, the control module issues a stop command according to the preset program and logic to control the isolation baffle 3 to stop moving.

[0059] In some possible implementations of the present invention, see Figure 4 As shown, a third sensor 6 is provided near the exit of the channel 9 to be cleaned. The third sensor 6 is connected to the control module. The third sensor 6 is used to sense the position information of the cleaning scraper 1. When the third sensor 6 is triggered, the control module controls the cleaning scraper 1 to move in the opposite direction of the material transmission direction.

[0060] In this embodiment, the third sensor 6 can accurately sense the moment when the cleaning scraper 1 reaches a position close to the outlet. When the cleaning scraper 1 reaches this position, the third sensor 6 is triggered and transmits a signal to the control module, which then controls the cleaning scraper 1 to move in the opposite direction of the material conveying direction. This enables the cleaning scraper 1 to accurately start the return journey, avoids excessive movement or misses the return journey opportunity, and ensures the efficiency and accuracy of the cleaning process.

[0061] The third sensor 6 may also be a photoelectric sensor, a proximity switch, a travel switch, etc., which is not limited in the present invention. In practical applications, the third sensor 6 is installed in a position close to the exit of the channel to be cleaned 9, and is used to monitor in real time whether the cleaning scraper 1 reaches the position close to the exit. When the cleaning scraper 1 reaches the position, the third sensor 6 can quickly capture this information and transmit it to the control module.

[0062] Specifically, the control module is connected to the third sensor 6 through a reliable electrical connection or communication line. When the third sensor 6 senses that the cleaning scraper 1 has reached a position close to the outlet, the third sensor 6 generates a trigger signal. The signal is immediately transmitted to the control module, informing the control module that the cleaning work of the cleaning scraper 1 has been completed. After receiving the signal, the control module analyzes and processes the signal to confirm that the position information of the cleaning scraper 1 is accurate, and then the control module issues a command to control the cleaning scraper 1 to move in the opposite direction of the material transmission direction according to the preset control strategy.

[0063] In some possible implementations of the present invention, see Figure 5 As shown, a fourth sensor 7 is also provided at the end position where the isolation baffle 3 and the cleaning scraper 1 in the channel 9 to be cleaned move synchronously for a first distance along the material transmission direction. The fourth sensor 7 is connected to the control module. The fourth sensor 7 is used to sense the position information of the cleaning scraper 1. When the fourth sensor 7 is triggered, the control module controls the cleaning scraper 1 and the isolation baffle 3 to move synchronously in the opposite direction of the material transmission direction.

[0064] In this embodiment, the fourth sensor 7 can accurately sense the moment when the cleaning scraper 1 reaches the end position. When the cleaning scraper 1 triggers the fourth sensor 7, the control module can immediately control the cleaning scraper 1 and the isolation baffle 3 to move synchronously in the opposite direction of the material transmission direction. This allows the cleaning scraper 1 and the isolation baffle 3 to accurately start the return journey, avoiding excessive movement or missing the return opportunity, and ensuring the efficiency and accuracy of the cleaning process.

[0065] The fourth sensor 7 may also be a photoelectric sensor, a proximity switch, a travel switch, etc., which is not limited in the present invention. In practical applications, the fourth sensor 7 is installed at the end position where the isolation baffle 3 and the cleaning scraper 1 move synchronously for the first distance along the material transmission direction, and is used to sense the position information of the cleaning scraper 1. When the cleaning scraper 1 reaches this position, the fourth sensor 7 can quickly capture this signal and transmit it to the control module.

[0066] Specifically, the control module is connected to the fourth sensor 7 through a reliable electrical connection or wireless communication. When the fourth sensor 7 senses that the cleaning scraper 1 has reached the end position, it will immediately generate a trigger signal. The trigger signal is quickly transmitted to the control module, informing the control module that the cleaning scraper 1 has reached a position close to the isolation baffle 3 and needs to perform the next step of operation control. The control module first analyzes and processes the signal to confirm that the position information of the cleaning scraper 1 is accurate, and then according to the preset program and logic, the control module issues a command to control the cleaning scraper 1 and the isolation baffle 3 to move synchronously in the opposite direction of the material transmission direction.

[0067] In the above embodiment, the total length of the channel 9 to be cleaned is A, and the initial position of the isolation baffle 3 and the cleaning scraper 1 in the channel 9 to be cleaned that move synchronously for the first distance along the material transmission direction is A / 3 away from the entrance of the channel 9 to be cleaned, and the first distance is also A / 3.

[0068] In this embodiment, since the initial position is close to the entrance, the isolation baffle 3 can start to block the upstream material at the early stage of the material entering the channel to be cleaned 9, preventing the material from interfering with the area being cleaned. Thus, a relatively stable working environment is provided for the cleaning scraper 1, which is conducive to improving the cleaning effect. At the same time, the clear first distance parameter enables the control module to more accurately control the movement of the isolation baffle 3 and the cleaning scraper 1, which helps to reduce position errors and motion instability factors, and improve the operation accuracy and reliability of the equipment.

[0069] Among them, starting from the entrance of the channel to be cleaned 9, the length of A / 3 along the direction of material transmission is the starting point where the isolation baffle 3 and the cleaning scraper 1 start to move synchronously. On the one hand, a certain distance from the entrance allows the material to have a buffer area after entering the channel to be cleaned 9, avoiding material accumulation or blockage that may be caused by immediately starting the automatic cleaning device of the magnetic separator flat screen at the entrance. On the other hand, the distance A / 3 is relatively moderate, neither too close to the entrance to cause untimely cleaning, nor too far from the entrance to make the response time of the cleaning device too long.

[0070] Among them, when the isolation baffle 3 and the cleaning scraper 1 start to move synchronously, the distance that the isolation baffle 3 and the cleaning scraper 1 will move along the material transmission direction is one third of the total length A of the channel to be cleaned 9. When the automatic cleaning device for foreign matter on the flat screen of the magnetic separator starts to work, the isolation baffle 3 and the cleaning scraper 1 start from the initial position of A / 3 from the inlet and move synchronously in the direction of material transmission by a distance of A / 3.

[0071] In some possible implementations of the present invention, see Figures 1 to 6 As shown, the automatic cleaning device for foreign matter of the flat screen of the magnetic separator also includes: a discharge gate 8, which is liftably arranged at the outlet of the channel to be cleaned 9. When the cleaning scraper 1 is in the first working state, the discharge gate 8 rises to the top of the channel to be cleaned 9. When the cleaning scraper 1 is in the second working state, the discharge gate 8 falls into the channel to be cleaned 9.

[0072] In this embodiment, when the cleaning scraper 1 is in different working states, the discharge gate 8 rises or falls accordingly, and the discharge of foreign matter at the outlet of the to-be-cleaned channel 9 can be accurately controlled. When the cleaning scraper 1 is in the first working state, the discharge gate 8 rises above the channel, allowing foreign matter to be discharged smoothly, and realizing orderly material flow control. When the cleaning scraper 1 is in the second working state, the discharge gate 8 falls into the channel to prevent the material from flowing out.

[0073] Among them, the discharge gate 8 can be lifted in the same manner as the isolation baffle 3 and the cleaning scraper 1. For example, the discharge gate, the isolation baffle 3 and the cleaning scraper 1 can all be lifted by installing vertical guide rails on both sides of the channel and cooperating with sliders.

[0074] Specifically, the control module can establish a connection with the drive system of the discharge gate 8 through electrical lines, communication buses or wireless connections. After the control module receives the status information of the cleaning scraper 1, the control module determines the action of the discharge gate 8 according to the preset control logic. If the cleaning scraper 1 is in the first state, the control module generates an instruction to make the discharge gate 8 rise to the top of the channel 9 to be cleaned; if the cleaning scraper 1 is in the second state, the control module generates an instruction to make the discharge gate 8 fall into the channel 9 to be cleaned. The drive system of the discharge gate 8 can be composed of a motor, a hydraulic system or a pneumatic system. The control module controls the lifting and lowering action of the discharge gate 8 by sending a control signal to the drive system. For example, the control module can send a start, stop, forward or reverse signal to the motor to realize the rise or fall of the discharge gate 8.

[0075] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0076] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An automatic cleaning device for foreign matter on a flat screen of a magnetic separator, characterized in that: include: A cleaning scraper (1), the cleaning scraper (1) is movably arranged on the channel to be cleaned (9), and the working state of the cleaning scraper (1) includes a first state and a second state. When the cleaning scraper (1) is in the first state, the cleaning scraper (1) falls into the channel to be cleaned (9) and moves in the channel to be cleaned (9) to scrape off foreign matter accumulated on the screen surface. When the cleaning scraper (1) is in the second state, the cleaning scraper (1) rises above the channel to be cleaned (9) to release the material. An image acquisition module (2), the image acquisition module (2) being located above the channel to be cleaned (9), the detection end of the image acquisition module (2) being arranged toward the channel to be cleaned (9), and the image acquisition module (2) being used to acquire information on the amount of foreign matter in the channel to be cleaned (9) in real time; A control module, the control module being connected to the image acquisition module (2), the control module being used to receive the foreign matter quantity information transmitted by the image acquisition module (2), and compare it with a preset setting range, and control the movement of the cleaning scraper (1) based on the comparison result.

2. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 1, characterized in that: Also includes: An isolation baffle (3) is movably arranged on the passage to be cleaned (9); when the cleaning scraper (1) performs a scraping operation on the foreign matter accumulated on the screen surface, the isolation baffle (3) falls into the passage to be cleaned (9); the isolation baffle (3) is located on the upstream side of the cleaning scraper (1) in the material transmission direction.

3. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 2, characterized in that: The isolation baffle (3) can also move within the channel to be cleaned (9), and the moving path of the isolation baffle (3) is part of the moving path of the cleaning scraper (1). When the cleaning scraper (1) scrapes away the foreign matter accumulated on the screen surface, the isolation baffle (3) and the cleaning scraper (1) move synchronously along the material transmission direction for a first distance.

4. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 3, characterized in that: A first sensor (4) is provided at the initial position of the isolation baffle (3) and the cleaning scraper (1) in the to-be-cleaned channel (9) at which the isolation baffle (3) and the cleaning scraper (1) move synchronously along the material transmission direction for the first distance. The first sensor (4) is connected to the control module. The first sensor (4) is used to sense position information of the isolation baffle (3) and the cleaning scraper (1). When the first sensor (4) is triggered, the control module controls the isolation baffle (3) and the cleaning scraper (1) to move synchronously along the material transmission direction.

5. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 4, characterized in that: A second sensor (5) is provided at the end position of the isolation baffle (3) and the cleaning scraper (1) in the channel to be cleaned (9) where the isolation baffle (3) and the cleaning scraper (1) move synchronously along the material transmission direction for the first distance. The second sensor (5) is connected to the control module. The second sensor (5) is used to sense the position information of the isolation baffle (3). When the second sensor (5) is triggered, the control module controls the isolation baffle (3) to stop moving.

6. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 5, characterized in that: A third sensor (6) is provided at a position close to the exit of the passage (9) to be cleaned. The third sensor (6) is connected to the control module. The third sensor (6) is used to sense the position information of the cleaning scraper (1). When the third sensor (6) is triggered, the control module controls the cleaning scraper (1) to move in the opposite direction to the material transmission direction.

7. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 6, characterized in that: A fourth sensor (7) is also provided at the end position of the first distance at which the isolation baffle (3) and the cleaning scraper (1) in the channel to be cleaned (9) move synchronously along the material transmission direction. The fourth sensor (7) is connected to the control module and is used to sense the position information of the cleaning scraper (1). When the fourth sensor (7) is triggered, the control module controls the cleaning scraper (1) and the isolation baffle (3) to move synchronously in the opposite direction of the material transmission direction.

8. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 3, characterized in that: The total length of the channel to be cleaned (9) is A, and the isolation baffle (3) and the cleaning scraper (1) in the channel to be cleaned move synchronously along the material transmission direction. The initial position of the first distance is A / 3 away from the entrance of the channel to be cleaned (9), and the first distance is also A / 3.

9. The automatic cleaning device for foreign matter on the flat screen of a magnetic separator according to claim 1, characterized in that: Also includes: A discharge gate (8), the discharge gate (8) being liftably arranged at the outlet of the passage to be cleaned (9); when the cleaning scraper (1) is in the first state, the discharge gate (8) rises to the top of the passage to be cleaned (9); when the cleaning scraper (1) is in the second state, the discharge gate (8) falls into the passage to be cleaned (9).

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