Contactless online detection device and method for green ball falling strength

Abstract

The present invention discloses a contactless online detection device and method for the falling strength of raw balls of pellets, comprising: a sampling assembly device; a raw ball particle size detection and screening device, and a raw ball strength detection device; a computer control system for controlling the movement of detection cameras in the raw ball particle size detection and screening device and the raw ball strength detection device, while simultaneously acquiring images from the cameras for identification and judgment, and converting the results of the identification and judgment into corresponding data for display. Ensuring that there is no contact between the human body and the raw balls during the detection process not only ensures the integrity of the raw balls but also improves the accuracy of the detection results, so that the raw ball strength detection can be completed independently without relying on the subjective experience and judgment of the staff; at the same time, information on multiple dimensions and angles of the raw balls can be captured, and with the help of image processing technology, the morphology, structure, and surface characteristics of the raw balls can be accurately analyzed, which is beneficial to the optimization and improvement of the production process. The efficiency of strength detection and the accuracy of detection are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of green ball smelting detection technology, and in particular to a strength detection technology in a green ball manufacturing process. Background Art

[0002] Green pellets are a crucial raw material in ironmaking. Strength testing is a crucial step in the pelletizing process, ensuring their quality and usability. The results directly impact the performance of subsequent process steps and the ultimate quality of ironmaking. Unacceptable green pellet strength indicates poor quality, failing to meet design and production requirements. This can lead to product failures or performance issues during use, negatively impacting customer experience and brand reputation. Substandard products require reprocessing or elimination, resulting in low production efficiency and increased costs. Furthermore, the production of substandard products can affect the stability and efficiency of subsequent process steps, further impacting production efficiency. Green pellet size, to a certain extent, determines both the productivity of the pelletizing machine and the strength of the resulting pellets. Smaller pellets result in higher productivity, while larger pelletizing times and lower productivity result in lower drop strength. However, smaller pellets also result in lower compressive strength. A reasonable green pellet size is essential for both increasing green pellet yield and improving strength. Therefore, real-time acquisition of green pellet strength information during green pellet production is essential for ensuring green pellet quality.

[0003] At present, most mining plants on the market use manual testing, where workers select qualified green balls, pinch them by hand, and drop them from a height of 500mm. This operation is repeated 10 times. If no cracks occur, the green balls are considered strong enough. However, the process of manually selecting green balls involves subjective factors, and different workers have different subjective selection criteria, resulting in uncertainty in the results. Manual testing lacks unified standards and operating procedures, making it difficult to compare and replicate under different circumstances. The lack of standardization also affects the credibility and accuracy of the results. The process of pinching green balls by hand requires workers to have certain skills and experience, and differences in operating skills between different workers can also lead to deviations in the results. Manual testing can only simply evaluate the strength of green balls, and cannot fully consider the internal structure and mechanical properties of green balls. It is easy to overlook some key factors that affect strength. Although manual testing methods can preliminarily evaluate the strength of green balls, their accuracy is not enough to meet some strict strength requirements. Therefore, there is an urgent need for an online green ball drop strength detection device and method that can achieve unified and standardized testing. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a contactless green ball falling strength online detection device and method, so that the green ball strength detection can be completed independently without the subjective experience judgment of the staff, making the detection results more objective and accurate.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A non-contact green ball drop strength online detection device, characterized by at least comprising:

[0007] The sampling device is lifted and moved by a lifting pulley and is provided with a horizontally arranged and rotatable sample receiving groove;

[0008] The particle size detection device is provided with a ball receiving slide corresponding to the ball receiving groove, and determines whether each groove has a corresponding raw ball sample through a ball receiving plate with a groove provided on the top and a switch detection device; the ball receiving plate is configured to be driven by chain 1 to move toward the transfer slide, and a camera body corresponding to chain 1 photographs the raw balls carried by the ball receiving plate; the particle size detection device also includes a rejection component driven by chain 1, and if the raw ball particle size data exceeds a set range, the rejection component will reject the raw balls on the corresponding ball receiving plate;

[0009] The strength detection device includes a camera, and the camera body is configured to shoot the raw ball after the ball is dropped directly downward, obtain the image of the raw ball after the ball is dropped, judge the ball dropping data and display it; the raw ball with qualified particle size enters the vertical lifting trough assembly below the strength detection device through a transfer slide, and chain 2 is configured to drive the lifting trough assembly.

[0010] In the above technical solution, the rejection component includes a rejection push rod 1 installed on a particle size detection fixed frame and perpendicular to a chain 1, the telescopic end of the rejection push rod 1 is installed with a rejection brush corresponding to the height of the ball receiving plate, and the particle size detection fixed frame is fixedly connected with a rejection slide 1 corresponding to the position of the rejection brush.

[0011] The above technical solution also includes a sliding base, which includes a base slide rail and a base slider slidably connected to the base slide rail, and the mounting base is slidably connected to the base slide rail through the base slider.

[0012] The above technical solution also includes a lens cleaning assembly, which includes a cleaning push rod installed under the camera bracket, and a telescopic end of the cleaning push rod is installed with a soft cleaning brush that contacts the lens of the camera body.

[0013] In the above technical solution, the mobile camera assembly also includes an inductive buffer assembly installed on a linear slide, and the inductive buffer assembly includes a buffer connecting frame installed on a slider of the linear slide. A spring telescopic rod 2 is movably connected to the side of the buffer connecting frame corresponding to the camera moving motor, and a proximity switch 4 is fixedly connected to the end of the spring telescopic rod 2 away from the buffer connecting frame.

[0014] In the above technical solution, the upper ends of one group of the columns are movably mounted on the sampling fixture via transversely arranged bolts, and the upper ends of the other group of columns are movably mounted on the sampling fixture via telescopic adjustment rods and transversely arranged bolts.

[0015] In the above technical solution, the particle size detection fixed frame is equipped with a chain guide groove supported below the upper half of the chain link.

[0016] In the above technical solution, the rejection components of the particle size detection device are provided in two groups along the direction of chain one.

[0017] The above technical solution also includes a computer control system for acquiring images through the image acquisition device and converting the images into corresponding data for display, while feedback controlling the horizontal movement of the sliding mechanism to drive the image acquisition device to move.

[0018] The computer control system module consists of two parts: hardware and software. The software includes programming and configuration software. The hardware includes a computer, PLC, power supply, input module, output module, proximity switch, network cable, and buttons. These two parts work together to load the software into the hardware, and through relevant communication, the entire device's control actions are completed.

[0019] The above technical solution also includes a frame-type support structure, which uses aluminum profiles and angle aluminum to complete the construction of the aluminum profile outer frame of the entire contactless pellet raw ball falling strength online detection device.

[0020] In the above technical solution, the sampling terminal is a V-shaped plate for receiving the sampling, which has a groove structure at the bottom of the cross section and is in the shape of a long strip as a whole.

[0021] In the above technical solution, the sampling assembly device includes a sampling fixed plate, and after the sampling is completed, the rotating mechanism rotates the fixed wheel fixed by the sampling fixed plate to complete the transfer of the green balls.

[0022] In the above technical solution, the lifting mechanism is a rack and pinion mechanism.

[0023] In the above technical solution, the sliding mechanism drives the camera protection tube with the built-in camera to move horizontally to complete the vertical particle size detection, and the electromagnet assembly completes the screening. At least the part of the protection tube opposite to the camera lens is made of transparent material.

[0024] In the above technical solution, the two sides of the rack in the sampling assembly device are composed of V-shaped guide rails, the V-shaped guide rails and the V-shaped rollers fixed on the roller fixing plate slide with each other, and the gears are fixed and driven by a servo motor and a worm gear reducer.

[0025] In the above technical solution, the roller fixing plates that fix the V-shaped rollers on both sides are fixed by two fixed shafts, and the two ends of one of the fixed shafts are connected to the chain connecting rod. The sampling angle is adjusted by adjusting the length of the two ends of the chain connecting rod.

[0026] In the above technical solution, when the sampling V-shaped plate is driven by the gear rack and contacts the fixed wheel, the pressure of the fixed wheel forces the V-shaped plate to rotate to complete the transfer of the raw balls.

[0027] In the above technical solution, each movement of a chain link of the chain drive in the green ball particle size detection and screening device will be identified by the contact switch, and the particle size of the identified chain link will be detected.

[0028] In the above technical solution, the rejection assembly and the rejection funnel are both arranged in conjunction with the electromagnet assembly. The electromagnet assembly consists of an electromagnet, a brush and a light rod passing through two linear bearings. The two linear bearings are fixed on both sides of the electromagnet by two L-plates respectively. The electromagnet motion axis and the front section of the light rod are fixed to the brush through a connecting plate. The raw balls that are detected as unqualified by the particle size detection camera will be pushed out of the horizontal conveyor chain by the electromagnet assembly.

[0029] In the above technical solution, the green balls that have passed the particle size detection and are qualified slide down the inclined slideway into the vertical lifting hook assembly in a horizontal state.

[0030] In the above technical solution, when the raw ball moves to a certain height with the vertical lifting hook assembly, it slides into the funnel automatic opening and closing assembly due to its own weight. The automatic opening and closing assembly controls the opening and closing of the funnel by two rotatable ball receiving plates. The two rotatable ball receiving plates are respectively fixed on two rotating shafts, and the two rotating shafts are respectively fixed on two gears on the plate.

[0031] In the above technical solution, the lead screw and the two optical rods are fixed together on the motor fixing plate. The lead screw drives the connecting block to make the camera move horizontally and perform green ball particle size detection and green ball strength detection respectively.

[0032] A green ball online detection method, characterized by comprising the following steps:

[0033] S1. Chain 1 of the particle size detection device drives the ball receiving plate to move toward the transfer slide, and the camera body corresponding to the chain 1 photographs the raw balls carried by the ball receiving plate;

[0034] S2. The computer obtains the raw ball image, determines the particle size data, and displays it. If the raw ball size data is within the set range, the rejection component does not take any action. If the raw ball size data exceeds the set range, the rejection component's rejection push rod 1 drives the rejection brush to move telescopically, pushing the raw ball on the corresponding ball receiving plate onto the rejection slide 1 to complete the rejection.

[0035] S3, the green balls with qualified particle size enter the vertical lifting trough assembly below the strength testing device through the transfer slide. Chain 2 transfers the green balls to the ball-dropping assembly through the vertical lifting trough assembly, and drops the balls downward into the vertical lifting trough assembly directly below.

[0036] S4. The camera body corresponding to the strength detection device shoots the green ball received by the vertical lifting trough assembly directly downward, and the computer obtains the green ball image after the ball is dropped, determines the ball drop data, and displays it;

[0037] S5. Chain 2 lifts the raw balls after falling upward through the vertical lifting trough assembly. The rejection push rod 2 pushes the telescopic rod connecting plate of the vertical lifting trough assembly, and pushes the raw balls after falling from the vertical lifting trough assembly into the rejection chute 2 through the ball pushing plate for discharge.

[0038] A contactless online ball detection system is characterized by comprising a PLC controller for implementing the above-mentioned contactless online ball detection method.

[0039] This invention ensures that there is no human contact with the raw ball during the testing process, which not only ensures the integrity of the raw ball but also improves the accuracy of the test results. This allows for independent testing of raw ball strength, independent of the subjective judgment of the operator. Furthermore, it captures information from multiple dimensions and angles of the raw ball. Using image processing technology, it can accurately analyze the morphology, structure, and surface characteristics of the raw ball, facilitating optimization and improvement of the production process. This significantly improves the efficiency and accuracy of strength testing.

[0040] Compared with the prior art, the present invention has the following specific beneficial effects:

[0041] 1: Use cameras to measure the strength of green balls. The camera can capture information of multiple dimensions and angles of the green balls. With the help of advanced image processing technology, the morphology, structure and surface characteristics of the green balls can be accurately analyzed, which improves the accuracy of strength recognition and can comprehensively evaluate the quality and characteristics of the green balls, which is conducive to the optimization and improvement of the production process.

[0042] 2: The device adopts a modular concept, designing each part into modules and then making corresponding connections. The device is light and compact, which is convenient for later transportation, installation, disassembly and maintenance, and the installation method is flexible. The design of this device is mainly divided into 5 parts. According to the on-site environment, two solutions can be adopted: transporting the parts to the site for assembly or assembling them first and then transporting them.

[0043] 3: The device invented a camera protective tube lens brush. In order to prevent the camera lens from being affected by dust during use, it was decided to use the lens brush to clean the dust on the lens. This can not only ensure the safety of the camera during use, but also ensure that the camera can capture clear images during work.

[0044] 4: The use of automatic detection system reduces manual operation and labor costs. It has no contact with the raw balls, avoids possible damage or deformation of the raw balls, ensures the integrity of the raw balls, reduces production costs, and improves the detection accuracy.

[0045] 5: The entire device has the characteristics of long-term stable operation. During use, it will not generate waste that requires multiple treatments, keeping the environment clean and pollution-free, and complying with the national policy orientation of environmental protection and green development.

[0046] 6. Intelligent control of the device through the computer control system module enables automated operation of each process. It can monitor the strength changes of green balls in real time, promptly identify problems or abnormalities in the production process, and facilitate timely adjustments and measures. Detected data can be recorded and analyzed to form historical data, providing a basis for production quality traceability and analysis. This helps to continuously optimize the production process, ensure the production of high-quality products, enhance corporate competitiveness and product credibility, and lay a solid foundation for the intelligent management of green ball production. This move is in line with the current trend of high-quality development and humanistic care in society, actively promotes the practice of smart manufacturing, and establishes a good social image for the mine.

[0047] In summary, the software system for qualified green ball judgment and fracture discrimination based on visual technology of the present invention has the advantages of high detection efficiency and high measurement accuracy. The device adopts a modular design, which makes it more convenient in maintenance, installation and disassembly. The entire device system is complete, and the initial investment cost is relatively low, but it can obtain high returns. Through the computer control system, the automation of each process is realized without the need for human intervention, thereby effectively reducing labor costs, not only improving production efficiency and product quality, but also effectively ensuring work safety and environmental protection. This series of innovative features together constitute a complete production management system, which provides strong support for the intelligent transformation of the steel industry and demonstrates the company's leading position in scientific and technological innovation and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is an overall structural diagram of a contactless online detection device for the falling strength of raw pellets according to an embodiment of the present invention.

[0049] Figure 2 This is a schematic diagram of the structure of the sampling assembly device of the present invention.

[0050] Figure 3 It is a schematic structural diagram of the green ball particle size detection and screening device of the present invention.

[0051] Figure 4 This is a structural diagram of the sampling component of the present invention from another perspective.

[0052] Figure 5 The driving structure of the sampling assembly of the present invention is composed of a partial enlargement of the meshing portion between the sampling gear 101 and the rack 10.

[0053] Figure 6 This is a state diagram of the green ball of the present invention before it falls into the funnel from the sampling assembly.

[0054] Figure 7 This is a diagram showing the process of the green balls falling from the sampling assembly into the funnel of the present invention (during the ascending process of the sampling assembly, the pressing plate is pressed by the fixed wheel so that the sampling V-shaped plate gradually tilts to a certain angle, and the green balls slide into the funnel).

[0055] Figure 8 This is a schematic structural diagram of a device for detecting green ball strength according to the present invention;

[0056] Figure 9 This is a schematic structural diagram of the overall mobile device of the present invention;

[0057] Figure 10 This is a schematic diagram of the structure of a portion of the device of the present invention where the raw balls enter the transfer slide from the ball receiving plate (the raw balls in the funnel slide into the ball receiving plate, move with the chain drive, and slide into the transfer slide at the last stage, and transfer

[0058] The slide is a circular track with a certain inclination angle).

[0059] Figure 11 This is a partial structural diagram of the present invention in which green balls that fail the particle size test are rejected by the rejection component (the electromagnet drives the brush to push the green balls into the rejection funnel).

[0060] Figure 12 This is a structural diagram of the ball receiving plate of the present invention (ball receiving plate, proximity switch sensing block and chain link assembly combination).

[0061] Figure 13 This is a partial structural diagram of the present invention, in which a raw ball falls from a ball receiving plate into a vertical lifting trough assembly (perspective view, the transfer slide is fixed to the horizontal main board via a fixed L-plate 371).

[0062] Figure 14 It is a three-dimensional diagram of the local structure of the vertical lifting trough assembly of the present invention (the raw balls slide into the vertical lifting trough assembly through the transfer slide, and the arc at the lower end of the transfer slide is slightly higher than the lifting trough body of the vertical lifting trough assembly).

[0063] Figure 15 This is a schematic diagram of the aluminum profile outer frame structure of the present invention;

[0064] Figure 16 This is a structural diagram of the splice plate assembly of the present invention;

[0065] Figure 17This is a schematic structural diagram of the driving wheel assembly of the present invention;

[0066] Figure 18 This is a schematic diagram of the structure of the rejection component of the present invention;

[0067] Figure 19 This is a structural diagram of a screw-type camera assembly according to the present invention;

[0068] Figure 20 This is a structural schematic diagram of the lens brush assembly of the present invention.

[0069] Figure 21 This is a schematic structural diagram of the vertical lifting hook assembly of the present invention.

[0070] Figure 22 This is an exploded schematic diagram of the vertical lifting hook assembly of the present invention.

[0071] Figure 23 This is a structural diagram of the automatic opening and closing component of the funnel of the present invention.

[0072] Figure 24 It is a schematic structural diagram of the V-type roller assembly of the present invention.

[0073] Figure 25 This is a schematic structural diagram of the buffer induction block assembly of the present invention.

[0074] Figure 26 This is a partial structural diagram of the vertical lifting trough assembly of the present invention being fixed to the chain link by screws.

[0075] Figure 27 This is the structure diagram of the vertical lifting trough assembly of the present invention, which has been tested for strength and moves with the vertical chain (when the position is as shown, the sensor

[0076] The block is sensed by the proximity switch, and the electromagnet moves to push the ball push plate in the vertical lifting chute assembly to remove the raw balls. The raw balls fall into the rejection funnel and leave the device from the rejection chute).

[0077] Figure 28 This is another perspective three-dimensional structural diagram of the vertical lifting trough assembly of the present invention.

[0078] Figure 29 This is the overall structural diagram of the present invention (the raw balls that fail the horizontal particle size test and are rejected also fall from the rejection funnel into the rejection chute and leave the device). DETAILED DESCRIPTION

[0079] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clearly understood, the following specific embodiments are given in conjunction with the attached drawings. Figure 1 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.

[0080] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connected," and "fixed" should be understood broadly. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct connections or indirect connections through an intermediary, and internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0081] like Figures 1 to 29 This device, based on the present invention, is a contactless, online testing device for measuring the falling strength of green pellets. It utilizes a visual inspection system and a computer control system to test the strength of the pellets during the pelletizing process. The device consists of five main components: a sampling assembly 1, a green pellet size detection and screening device 2, a green pellet strength tester 3, an integrated moving device 4, and an aluminum profile frame 5.

[0082] like Figure 2 、 Figures 4 to 7 As shown, the sampling assembly device 1 includes a servo motor 6, a worm gear reducer 7, a motor fixing plate 8, a 1# aluminum profile 9, a rack 10, a V-shaped guide rail 11, a V-shaped roller 12, a roller fixing plate 13, a fixed wheel 14, an angle change plate 15, a receiving plate assembly 16, a 1# fixed shaft 17, a chain connecting plate 18, a 2# fixed shaft 19, a 2# aluminum profile 20, an I-beam 21, an angle aluminum 22, and an I-beam connecting plate 23. The sampling assembly device is connected to the aluminum profile outer frame by bolts and is located before the raw ball particle size detection and screening device. Driven by the power system, the sampling gear 101 starts to rotate, and the rack 10 drives the aluminum profile to move downward together. The raw balls are received by the receiving plate assembly 16. The rack 10 then drives the aluminum profile to move upward together. When it contacts the roller fixing wheel 13, it is squeezed to form an inclination angle, causing the raw balls to fall into the raw ball particle size detection and screening device. The splicing plate assembly 16 is fixed with angle aluminum and 1# aluminum profile 9, the servo motor 6 is connected to the key and the worm gear reducer 7 through the flange connection plate, the output shaft is connected to the gear through the key, and then fixed to the motor fixing plate 8 through screws, the two sides of the motor fixing plate and the roller fixing plate 13, the two roller fixing plates 13 are respectively fixed with four symmetrical V-shaped rollers 12 and mesh with the V-shaped guide rail 11 fixed on the rack 10, the 1# fixed shaft 17 and the 2# fixed shaft 19 pass through the other side of the two roller fixing plates 13 and the upper part of the 2# aluminum profile 20 at the same time, and the two fixed shafts are fixed with a lock nut, the two sides of the 1# fixed shaft 17 and the 2# fixed shaft 19 are then connected in pairs by 2 chain connecting plates 18, and the 2# aluminum profile 20 is fixed to the I-beam 21 as a whole with angle aluminum 22, and the four I-beams 21 are spliced ​​into a rectangle and fixed with four I-beam connecting plates 23 to form a whole.

[0083] like Figure 3 、 Figure 8-20 As shown, the green ball particle size detection and screening device 2 includes a funnel 24, a funnel fixing plate 25, a horizontal fixing main plate 26, a dust cover fixing plate 27, a dust cover 28, an idler pulley tension adjustment device 29, a rejection funnel 30, a chain guide 31, a chain 32, a ball receiving plate 33, a rejection funnel 34, a driving wheel assembly 35, an aluminum angle 36, a transfer slide 37, a rejection assembly 38, a proximity switch 39, a sensor block 40, a screw camera assembly 41, and a lens brush assembly 42. The green balls that slide from the funnel 24 into the ball receiving plate 33 move horizontally along with the chain 32 driven by the driving force provided by the driving wheel assembly 35, and then pass through the transfer slide 37 into the green ball strength detection device. The ball receiving plate 33 is fixed to the chain 32, and the driving wheel assembly 35 provides driving force to drive the gear to mesh with the chain 32 and ensure the stability of the gear chain meshing to realize chain transmission. The driving wheel assembly 35 and the idler tension adjustment device 29 are fixed to the horizontal fixed main board 26 through the flange and ensure the parallelism between their axes. The funnel 24 is fixed to the dust cover 28 with the funnel fixing plate 25, and the dust cover 28 is fixed to the lower left of the horizontal fixed main board 26 with the dust cover fixing plate 27. The lower end of the chain in the upper part of the chain transmission is equipped with a chain guide 31 fixed to the middle of the horizontal fixed main board 26. The rejection funnel 30 and the rejection funnel 34 are fixed on the outside of the chain guide 31, and the two rejection assemblies 38 are fixed on the horizontal Fix the upper end of the main board 26, and make the brush at the bottom of the rejection funnel overlap with the ball receiving plate 33 by 3 to 5 mm, so that it can effectively reject unqualified raw balls. The sensing block 40 is fixed in the middle position of the ball receiving plate 33, and the proximity switch 39 is fixed on the horizontally fixed main board 26 and is 2 mm away from the sensing block 40. The transfer slide 37 is fixed to the lower right side of the horizontally fixed main board 26, so that qualified raw balls can slide smoothly to complete the transfer. Directly above the entire raw ball particle size detection and screening device is a screw camera assembly 41 fixed to the aluminum profile frame 5, and the lens brush assembly 42 is fixed to the aluminum profile frame 5 and is located on one side of the camera lens, so that the brush overlaps with the camera lens by 5 mm, so that it completes the dust cleaning function during operation.

[0084] like Figure 9 、 Figures 21 to 29As shown, the green ball strength detection device 3 includes a driving wheel assembly 43, an electromagnet 44, a cleaning funnel 45, a proximity switch 46, a vertical fixing main board 47, a sensor block 48, an aluminum angle 49, a chain 50, a vertical lifting hook assembly 51, an idler pulley tension adjustment device 52, a first cleaning chute fixing plate 53, a second cleaning chute fixing plate 54, a cleaning chute 55, a lens brush assembly 56, a screw camera assembly 57, and an automatic funnel opening and closing assembly 58. The green ball slides from the transfer chute 37 into the vertical lifting hook assembly 51, and moves vertically along with the chain 50 driven by the driving force provided by the driving wheel assembly 43. When it reaches a certain height, it slides into the automatic funnel opening and closing assembly 58 by its own weight, and the funnel automatic opening and closing assembly 58 realizes the ball drop test. The driving wheel assembly 43 provides driving force to drive the gear and chain 50 to mesh and ensure the stability of the gear chain meshing to realize chain transmission. The driving wheel assembly 43 and the idler tension adjustment device 52 are fixed to the vertical fixed main board 47 through the flange and ensure the parallelism between their axes. The electromagnet 44 is fixed to the vertical fixed main board 47. The sensor block 48 is fixed on the chain link that can be sensed by the proximity switch 46 when the vertical lifting hook assembly 51 is in the horizontal position directly below, and ensure that the sensor block 48 is 2mm away from the proximity switch 46. The vertical lifting hook assembly 51 is fixed by bolts. The funnel automatic opening and closing assembly 58 is fixed on the chain and moves with the chain. The funnel automatic opening and closing assembly 58 is fixed to the vertical fixed main board 47 by bolts. The 1# cleaning slide fixing plate 53 and the 2# cleaning slide fixing plate 54 are welded to the cleaning slide 55 and fixed to the screw camera assembly 57 and the chain guide 31 by screws respectively. Directly above the entire raw ball strength detection device 3 is the screw camera assembly 57 fixed to the aluminum profile outer frame 5. The lens brush assembly 56 is fixed to the aluminum profile outer frame 5 and is located on one side of the camera lens. The brush and the camera lens overlap by 5mm, so that it can complete the dust cleaning function during operation.

[0085] like Figure 15 、 Figures 21 to 29 As shown, the overall moving device 4 includes a 1# I-beam frame 59, a V-shaped guide rail 60, a V-shaped roller assembly 61, a 2# I-beam 62, a 3# I-beam 63, an L-shaped connecting plate 64, and a connecting plate 65. Two 2# I-beams 62 and three 3# I-beams 63 are parallel and perpendicularly spliced ​​into a rectangular shape, fixed with L-shaped connecting plates 64 and connecting plates 65 to form an overall I-beam frame. The four lower corners of the I-beam frame are screwed to the V-shaped roller assemblies 61, and the two sides of the entire I-beam frame are bolted to the 1# I-beam frame 59. The two 1# I-beam frames 59 are each fixed with a V-shaped guide rail 60. The overall movement of the device is achieved by the relative sliding of the roller assembly 61 on the V-shaped guide rail 60.

[0086] like Figure 15As shown, the aluminum profile outer frame 5 includes 1# aluminum profile 66, fixing plate 67, 2# aluminum profile 68, T-bolt 69, angle aluminum 70, 3# aluminum profile 71, 1# aluminum alloy square tube 72, and 2# aluminum alloy square tube 73. 1# aluminum profile 66 and 3# aluminum profile 71 are fixed through angle aluminum 70 and T-bolt 69 and 2# aluminum profile 68. The 3# aluminum profile 71 located in the middle part is covered with 2# aluminum alloy square tube 73 and fixed with bolts. The gold square tube 73 is used to fix the screw camera assembly in the green ball particle size detection and screening device and the green ball strength detection device. One side of the three 3# aluminum profiles 71 is covered with a 1# aluminum alloy square tube 72 and fixed with bolts. The 1# aluminum alloy square tube 72 is used to fix the green ball particle size detection and screening device 2 and the green ball strength detection device 3 in the lens brush assembly to form an integral aluminum profile. The fixing plate 67 is then used to fix the 1# aluminum profile 66 and the integral moving device 4 together.

[0087] like Figure 16 As shown, the material receiving plate assembly 16 includes a V-shaped ball receiving plate 74, a fixed plate 75, a fixed shaft 76, a fixed connecting block 77, a spring slot 78, a bearing seat 79, an angle changing plate 80, a compression spring 81, and a rotating shaft 82. The fixed connecting block 77 is fixed as a whole by bolts and bearing seat 79, and a fixed plate 75 is welded to the fixed shaft 76 and the rotating shaft 82 respectively, and a V-shaped ball receiving plate 74 is placed on the two fixed plates 75, wherein the fixed plate 75 and the V-shaped ball receiving plate 74 on the rotating shaft 82 are welded together, while the fixed plate 75 and the V-shaped ball receiving plate 74 on the fixed shaft 76 are not welded, so that they can rotate with the rotating shaft 82. The fixed shaft 76 is designed as a stepped shaft and can be fixed to the fixed connecting block 77 with a spring retaining ring. The rotating shaft 82 is designed as a stepped shaft and is fixed to the bearing seat 79 with a spring retaining ring, and a compression spring 81 is sleeved at the tail of the rotating shaft 82. The compression spring 81 uses two spring retaining rings 78 to fix the springs at both ends to the fixed connecting block 77 and the angle changing plate 80 respectively, so that the rotating shaft 82 can rotate with the angle changing plate 80 and can automatically recover. The angle changing plate 80 is fixed to the rotating shaft 82 by bolts. This allows the splicer assembly 16 to be tilted relative to the axis of rotation 82 .

[0088] like Figure 17As shown, the driving wheel assembly 35 includes a servo motor 83, a right-angle reducer 84, a commutator 85, a flange 86, a sleeve 87, a gear 88, an output shaft 89, a fixing nut 90, a motor fixing bracket 91, and a fixing plate 92. The servo motor 83 is directly connected to the right-angle reducer 84 and then connected to the commutator 85 via the motor fixing bracket 91. The output shaft 89 passes through the output hole of the commutator 85 and is tightened with bolts. The output shaft 89 is designed to be stepped and, together with the sleeve 87, fixes the flange 86. The gear 88 is sleeved on the output shaft 89 and fixed with a fixing nut 90. The driving wheel assembly 35 is fixed to the horizontal fixed main plate 26 via the flange 86 to provide power support for the horizontal chain drive. The driving wheel assembly 43 in the green ball strength detection device 3 has the same structure and installation method as the driving wheel assembly 35. Finally, it is fixed to the vertical fixed main plate 47 to provide power support for the vertical chain drive.

[0089] like Figure 18 As shown, the rejection assembly 38 includes an electromagnet 93, a bearing fixing plate 94, an L fixing plate 95, a brush 96, a connecting plate 97, a connecting nut 98, a fixing plate 99, a linear bearing 100, and a polished rod 101. The rejection assembly 38 is mainly composed of the electromagnet 93. Two linear bearings 100 are fixed on both sides of the rear end of the electromagnet 93 by two bearing fixing plates 94. Two linear bearings 100 are fixed on both sides of the front end of the electromagnet 93 by two bearing fixing plates 94 and an L fixing plate 95 to maintain the parallelism between the axes of the two linear bearings. The polished rod 101 passes through the two linear bearings 100 and is fixed to the fixing plate 99. At the same time, the fixing plate 99 is fixed to the moving axis of the electromagnet 93 by the connecting nut 98. The brush 96 is fixed to the fixing plate 99 through the connecting plate 97 and overlaps with the ball receiving plate 33 by 5mm, so that the brush 96 can realize its own linear rejection motion along with the push-pull motion of the electromagnet 93.

[0090] like Figure 19As shown, the lead screw camera assembly 41 includes a servo motor 102 (preferably an MG series servo motor), a motor housing 103, a bearing seat 104, a connecting shaft 105, an optical rod 106, a camera fixing plate 107, a linear bearing 108, a lead screw nut 109, a lead screw 110, a connecting block 111, a camera protective tube 112, an integral movable fixing plate 113, a buffer sensor block assembly 114, a fixed L-plate 115, a proximity switch 116, and a proximity switch fixing plate 117. The servo motor 102 is fixed to the bearing seat 104 via the motor housing 103, and the proximity switch 116 is fixed to the bearing seat 104 via the proximity switch fixing plate 117. The bearing seat 104, the connecting shaft 105, and the lead screw 110 are each secured together by keys, allowing the lead screw nut 109, which is fixed to the lead screw 110, to achieve linear motion due to the driving force provided by the servo motor 102. The screw screw 109, camera fixing plate 107, and integral movable fixing plate 113 are bolted together into a single unit. A camera protective tube 112 is secured to the other side of the camera fixing plate 107. A buffer sensor block assembly 114 is secured to the upper end of the integral movable fixing plate 113. Two linear bearings 108 and a screw nut 109 pass through the middle and are secured thereto. The two linear bearings 108 then pass through the optical rod 106, respectively, preventing the camera fixing plate 107 and integral movable fixing plate 113 from deflecting during linear motion. One end of the two linear bearings 108 is secured to the bearing seat 104, and the other end is secured by a connecting block 111. The diameter of the circle coaxial with the screw 110 is greater than that of the screw 110, preventing interference between the screw and the connecting block 111 during rotation. The screw camera assembly 41 is secured to the aluminum profile outer frame 5 via a fixed L-plate 115.

[0091] like Figure 20 As shown, the lens brush assembly 42 includes an electromagnet 118 , a brush 119 , a connecting plate 120 , a connecting nut 121 , a fixing plate 122 , a linear bearing 123 , a bearing fixing plate 124 , a polished rod 125 , and an L fixing plate 126 . The main bodies of the lens brush assembly 42 and the rejection assembly 38 are roughly the same. Both achieve their own linear cleaning motion through the push-pull motion of the electromagnet. The difference is that the linear bearing 123 and the optical rod 125 passing through the linear bearing 123 are fixed to the bottom of the electromagnet with a bearing fixing plate 124. The fixing plate 122, the connecting plate 120 and the brush 119 are fixed with screws and then fixed with connecting nuts 121 and bolts and the moving axis of the electromagnet 118 and the optical rod. Unlike the rejection assembly 38, the brush 119 is directed upward, and the brush 119 used is wider, and the width is greater than the diameter of the camera protective tube 114, and overlaps with the camera protective tube 114 by 5mm, so that the brush 119 achieves its own linear cleaning motion with the push-pull motion of the electromagnet 118.

[0092] like Figure 21-22As shown, the vertical lifting hook assembly 51 includes a 1# fixing plate 127, a 2# fixing plate 128, a ball pushing plate 129, a 3# fixing plate 130, a hollow cylinder 131, a linear bearing 132, a spring retaining ring 133, a connecting shaft 134, a spring 135, a force plate 136, and a connecting plate 137. The 1# fixing plate 127, the 2# fixing plate 128 and the 3# fixing plate 130 are fixed together with bolts to form a ball receiving groove. The hollow cylinder 131 is designed to have an external thread at one end connected to the internal thread designed for the 3# fixing plate 130. The interior of the hollow cylinder 131 is The linear bearing 132 is positioned with a spring retaining ring 133. One end of the connecting shaft 134 passes through the linear bearing 132 and is fixed to the ball pushing plate 129. One end is covered with a spring 135 and fixed with a force plate 136. When the thrust of the electromagnet 44 acts on the force plate 136, the thrust is transmitted from the 2 force plates 136 to the connecting shaft 134 and then to the ball pushing plate 129 to realize a linear cleaning motion, and the raw balls are removed from the vertical lifting hook assembly 51. The 3# fixed plate 130 is fixed to the connecting plate 137, and is fixed by the connecting plate 137 and the chain 50 in the raw ball strength detection device 3.

[0093] like Figure 23As shown, the funnel automatic opening and closing assembly 58 includes a servo motor 138 (preferably an MG series servo motor), a motor fixed housing 139, a 1# bearing seat 140, a connecting shaft 141, a gear 142, a funnel 143, a 1# rotating shaft 144, a ball receiving plate 145, a 2# rotating shaft 146, an integral fixing plate 147, a funnel fixing plate 148, a proximity switch fixing plate 149, a proximity switch 150, a 2# bearing seat fixing plate 151, a 2# bearing seat 152, and a 1# bearing seat fixing plate 153. The servo motor 138 is fixed to the 1# bearing seat 140 through the motor fixing housing 139. The 1# bearing seat 140 is fixed to the 1# bearing seat fixing plate 153. The output shaft of the servo motor 138 is fixed to the connecting shaft 141 through a key. The gear 142 has 4 evenly distributed through holes for fixing to the connecting shaft 141. The 1# rotating shaft 144 and the 2# rotating shaft 146 are designed as stepped shafts to facilitate the axial fixation of the gear 142, and are connected to the two gears 142 and the ball receiving plate 145 through a key. The other end of the 2# rotating shaft 146 is fixed to the 2# bearing seat 152 through the 1# bearing seat fixing plate 151. The 1# bearing seat fixing plate 151 is fixed to the 1# bearing seat fixing plate On 153, the driving force provided by the servo motor 138 causes the two gears to engage with each other and respectively drive the 1# rotating shaft 144 and the 2# rotating shaft 146 to rotate, and also causes the ball receiving plate 145 to rotate together to realize the automatic opening and closing rotation movement of the funnel. The proximity switch 150 is fixed to the funnel fixing plate 148 through the proximity switch fixing plate 149. The two sides of the funnel are fixed to the two funnel fixing plates 148 by welding. The rear ends of the two funnel fixing plates 148 are respectively fixed on the 1# bearing seat fixing plate 153, and the front ends are fixed to the integral fixing plate 147 with bolts to form a whole. The integral fixing plate 147 is fixed to the vertical fixed main board 47 in the raw ball strength detection device 3.

[0094] like Figure 24 As shown, the V-shaped roller assembly 61 includes a connecting plate 154, a fixing plate 155, and a V-shaped roller 156. The two V-shaped rollers 156 maintain parallelism between their axes. The center position of the V-shaped roller 156 is determined by the position when engaged with the V-shaped guide rail 60 in the integral moving device 4. The V-shaped roller 156 is fixed to the fixing plate 155. The fixing plate 155 is fixed to the connecting plate 154 to form an integral body, and is fixed to the No. 1 I-beam frame 59 in the integral moving device 4 through the connecting plate 154.

[0095] like Figure 25 As shown, the buffer sensor block assembly 114 includes a fixed block 157, a connecting block 158, a connecting shaft 159, a spring 160, and a sensor block 161. One end of the connecting shaft 159 passes through the fixed block 157 and is fixed by the connecting block 158, and the other end passes through the spring 160 and is fixed by the sensor block 161. The fixed block 157 is fixed to the integral movable fixed plate 113 of the screw camera assembly 41.

[0096] In summary, the present invention provides a contactless online detection device for the falling strength of raw balls, which does not require contact with the balls and therefore will not cause any damage or deformation to the balls, thereby ensuring the safety and stability of the production process; the camera recognition technology can quickly and accurately capture the motion trajectory and falling strength of the balls, making the detection process more efficient and improving production efficiency; realizing automated detection, reducing manual intervention, reducing labor costs, and improving the degree of automation of the production line; the detection data of each ball, including falling strength, time and other information, can be recorded by computer, and abnormal situations can be discovered and adjusted in time, providing data support for quality control of the production process; compared with traditional manual detection or other detection methods, the device can save labor costs, improve production efficiency and reduce production costs; it adopts a modular design concept, which is convenient for maintenance, installation, transportation and disassembly, and no waste that needs to be recycled is generated during use, which is in line with the green and environmentally friendly development route and policies; it lays the foundation for the future realization of unmanned production and processing, and the promotion of smart manufacturing and intelligent production.

Claims

1. A non-contact green ball drop strength online detection device, characterized in that At least: The sampling device is lifted and moved by a lifting pulley and is provided with a horizontally arranged and rotatable sample receiving groove; The particle size detection device is provided with a ball receiving slide corresponding to the ball receiving groove, and determines whether each groove has a corresponding raw ball sample through a ball receiving plate with a groove provided on the top and a switch detection device; the ball receiving plate is configured to be driven by chain 1 to move toward the transfer slide, and a camera body corresponding to chain 1 photographs the raw balls carried by the ball receiving plate; the particle size detection device also includes a rejection component driven by chain 1, and if the raw ball particle size data exceeds a set range, the rejection component will reject the raw balls on the corresponding ball receiving plate; The strength detection device includes a camera, and the camera body is configured to shoot the raw ball after the ball is dropped directly downward, obtain the image of the raw ball after the ball is dropped, judge the ball dropping data and display it; the raw ball with qualified particle size enters the vertical lifting trough assembly below the strength detection device through a transfer slide, and chain 2 is configured to drive the vertical lifting trough assembly.

2. The non-contact green ball drop strength online detection device according to claim 1 is characterized in that The rejection component includes a rejection push rod 1 installed on a particle size detection fixed frame and perpendicular to a chain 1. The telescopic end of the rejection push rod 1 is installed with a rejection brush corresponding to the height of the ball receiving plate. The particle size detection fixed frame is fixedly connected with a rejection slide 1 corresponding to the position of the rejection brush.

3. The non-contact green ball drop strength online detection device according to claim 1 is characterized in that It also includes a sliding base, which includes a base slide rail and a base slider slidably connected to the base slide rail, and the sliding base is slidably connected to the base slide rail through the base slider.

4. The non-contact green ball drop strength online detection device according to claim 1 is characterized in that It also includes a lens cleaning component, which includes a cleaning push rod installed below the camera bracket, and a soft cleaning brush in contact with the lens of the camera body is installed at the telescopic end of the cleaning push rod.

5. The non-contact green ball drop strength online detection device according to claim 1 is characterized in that It also includes a mobile camera assembly, which also includes an inductive buffer assembly installed on a linear slide. The inductive buffer assembly includes a buffer connecting frame installed on a slider of the linear slide. A spring telescopic rod 2 is movably inserted into the buffer connecting frame corresponding to the side of the camera moving motor. A proximity switch 4 is fixedly connected to the end of the spring telescopic rod 2 away from the buffer connecting frame.

6. The non-contact green ball drop strength online detection device according to claim 2 is characterized in that The particle size detection fixed frame is provided with a chain guide groove supported below the chain links of an upper half of the chain.

7. The non-contact green ball drop strength online detection device according to claim 1 is characterized in that The particle size detection device has two groups of rejecting components arranged along the direction of chain one.

8. The non-contact green ball drop strength online detection device according to claim 1 is characterized in that It also includes a computer control system for acquiring images through the camera and converting the images into corresponding data for display, while feedback-controlling the horizontal movement of the sliding mechanism to drive the camera integrated device to move.

9. A non-contact green ball online detection method, characterized in that The non-contact green ball drop strength online detection device according to any one of claims 1 to 8 comprises the following steps: S1. Chain 1 of the particle size detection device drives the ball receiving plate to move toward the transfer slide, and the camera body corresponding to the chain 1 photographs the raw balls carried by the ball receiving plate; S2. The computer obtains the raw ball image, determines the particle size data, and displays it. If the raw ball size data is within the set range, the rejection component does not take any action. If the raw ball size data exceeds the set range, the rejection component's rejection push rod 1 drives the rejection brush to move telescopically, pushing the raw ball on the corresponding ball receiving plate onto the rejection slide 1 to complete the rejection. S3, the green balls with qualified particle size enter the vertical lifting trough assembly below the strength testing device through the transfer slide. Chain 2 transfers the green balls to the ball-dropping assembly through the vertical lifting trough assembly, and drops the balls downward into the vertical lifting trough assembly directly below. S4. The camera body corresponding to the strength detection device shoots the green ball received by the vertical lifting trough assembly directly downward, and the computer obtains the green ball image after the ball is dropped, determines the ball drop data, and displays it; S5. Chain 2 lifts the raw balls after falling upward through the vertical lifting trough assembly. The rejection push rod 2 pushes the telescopic rod connecting plate of the vertical lifting trough assembly, and pushes the raw balls after falling from the vertical lifting trough assembly into the rejection chute 2 through the ball pushing plate for discharge.

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