Graphite electrode safety detection platform and detection method

Abstract

A graphite electrode safety detection platform disclosed by the present invention comprises a detection table, the upper end of the detection table is symmetrically and fixedly connected with two connection plates, the upper ends of the two connection plates are jointly and fixedly connected with a connection box, the inner top of the connection box is provided with an infrared optical detection head, and the rear side of the connection box is provided with a travel switch. The travel switch is matched with the infrared optical detection head; and the rotating mechanism comprises a rectangular groove formed in the upper end of the detection table, and two rotating rollers are rotationally connected between the inner walls of the left side and the right side of the rectangular groove. The invention further comprises a detection method for safety detection of the graphite electrode. During specific detection, the graphite electrode can rotate and move at the same time, so that continuous comprehensive detection is achieved, the actual detection efficiency is greatly improved, in addition, unqualified parts can be marked when detected, an alarm is given out, workers are reminded, and actual use is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of graphite electrode detection, and in particular to a graphite electrode safety detection platform and a detection method. Background Art

[0002] In the production and application of graphite electrodes, quality inspection is a key link to ensure product performance and safety. As an important conductive material, graphite electrodes are widely used in industrial scenarios such as steel smelting and electric arc furnace steelmaking. Their quality directly affects smelting efficiency and product quality.

[0003] There are many traditional methods for graphite electrode inspection, and infrared optical inspection is one of them. In order to conduct comprehensive inspection, the existing inspection method generally uses the graphite electrode limit, then rotates it, and uses a moving infrared optical inspection head to inspect it. However, this method cannot perform continuous inspection, resulting in low inspection efficiency.

[0004] On the other hand, traditional testing methods lack effective marking and reminder functions. Even if inspectors find that an electrode has a defective part, they will not mark it. Due to the lack of clear markings, it is difficult for staff to quickly and accurately locate the defective part, which increases the difficulty and time cost of handling. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the existing technology and propose a graphite electrode safety detection platform. During specific detection, the graphite electrode can be rotated and moved at the same time, thereby realizing continuous and comprehensive detection, greatly improving the actual detection efficiency. In addition, when unqualified areas are detected, they will be marked and an alarm will be issued to remind the staff, which is convenient for actual use.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A graphite electrode safety detection platform includes a detection platform, the upper end of the detection platform is symmetrically fixedly connected to two connecting plates, the upper ends of the two connecting plates are commonly fixedly connected to a connection box, the inner top of the connection box is installed with an infrared optical detection head, the rear side of the connection box is installed with a limit switch, the limit switch cooperates with the infrared optical detection head; a rotating mechanism, the rotating mechanism includes a rectangular groove on the upper end of the detection platform, two rotating rollers are rotatably connected between the inner walls of the left and right sides of the rectangular groove, and two transmission rollers are rotatably connected between the front and rear inner walls of the rectangular groove, and a rotating shaft is wound around the two transmission rollers. There is a transmission belt, and a plurality of support rollers for supporting the transmission belt are rotatably connected between the front and rear inner walls of the rectangular groove. A plurality of abutments are fixedly connected to the outside of the transmission belt, and the abutments include a vertical abutment plate fixedly connected to the outside of the transmission belt, a horizontal plate fixedly connected to one side of the vertical abutment plate, and a plurality of ball bearings are provided on the other side of the vertical abutment plate, and the upper ends of the plurality of vertical abutment plates located above extend to the gap between the two rotating rollers; a driving mechanism, which is used to realize the operation of the rotating mechanism; a cleaning mechanism, which is used to clean dust on the graphite electrode before detection.

[0008] Preferably, the driving mechanism includes a transmission installed on the front side of the detection platform, the output end of the transmission extends into the inside of the rectangular groove and is fixedly connected to the front end of the rotating shaft of the right transmission roller, and a mounting frame is installed on the front side of the detection platform, and a driving motor is installed on the mounting frame, and the output shaft of the driving motor is fixedly connected to the input shaft of the transmission.

[0009] Preferably, two mounting plates are fixedly connected to the left side of the detection platform, and a rotating shaft is rotatably connected between the two mounting plates. The front end of the rotating shaft passes through the front mounting plate, and a second synchronous wheel is installed on the rotating shaft and the output shaft of the driving motor. The two second synchronous wheels are connected by a second synchronous belt transmission. The left end rotating shafts of the two rotating rollers extend to the outside world and are installed with a first synchronous wheel. The two first synchronous wheels are connected by a first synchronous belt transmission. The rear end of the rotating shaft passes through the rear mounting plate and is fixedly connected with a second bevel gear. The left rotating shaft of the rotating roller located on the front side is installed with a first bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0010] Preferably, the cleaning mechanism includes a piston cylinder fixedly connected to the front side of the detection platform, a first piston plate that can slide up and down is provided in the piston cylinder, the front end of the rotating shaft is fixedly connected to a driving disk, the front eccentric part of the driving disk is rotatably connected to a driving rod, and the other end of the driving rod is rotatably connected to the upper end of the first piston plate.

[0011] Preferably, the upper end of the connecting box is fixedly connected to the gas cartridge, the inner top of the gas cartridge is connected to the outside through an air hole, a second piston plate that can slide up and down is provided in the gas cartridge, and the upper end of the second piston plate is elastically connected to the inner top of the gas cartridge through a release spring.

[0012] Preferably, a U-shaped hollow bar is fixedly connected to the upper end of the testing platform, a plurality of air jets are opened at the bottom of the horizontal portion of the U-shaped hollow bar, and the inner top space of the gas cylinder is connected to the interior of the U-shaped hollow bar through a release tube.

[0013] Preferably, the inner bottom space of the piston cylinder is connected to the outside world through a one-way port, and the inner bottom space of the piston cylinder is connected to the inner bottom hole of the air cylinder through a one-way tube. One-way valves are installed inside the one-way port and the one-way tube. The one-way valve inside the one-way port flows in a one-way direction from the outside world into the piston cylinder, and the one-way valve inside the one-way tube flows in a one-way direction from the piston cylinder into the air cylinder.

[0014] Preferably, the inner top of the connecting box is fixedly connected to the exhaust cylinder, and a piston block that can slide up and down is provided in the exhaust cylinder. The upper end of the piston block is elastically connected to the inner top of the exhaust cylinder through a restoring spring, and the inner bottom space of the air storage cylinder is connected with the inner top space of the exhaust cylinder through a connecting pipe. A solenoid valve is installed in the connecting pipe, and the solenoid valve is electrically connected to the infrared optical detection head. The inner top space of the exhaust cylinder is connected to the outside world through the exhaust pipe. A whistle is installed inside the exhaust pipe. The diameter of the exhaust pipe is half of the diameter of the connecting pipe. The lower end of the piston block is fixedly connected to the indicator pen, and the lower end of the indicator pen passes through the inner bottom of the exhaust cylinder.

[0015] The present invention also discloses a method for detecting the safety of graphite electrodes, which uses the above-mentioned detection platform and includes the following steps:

[0016] Step 1: Start the cleaning mechanism. The driving motor drives the rotating shaft through the transmission. The front drive disc pushes the first piston plate in the piston cylinder to slide back and forth through the driving rod. The gas is sucked in through the one-way port and pressed into the bottom of the gas reservoir through the one-way pipe, pushing the second piston plate up to above the release pipe. The gas is continuously transported through the release pipe to the U-shaped hollow bar air outlet for discharge.

[0017] Step 2: Place the cylindrical graphite electrode between the two rotating rollers in the rectangular groove of the test table. The driving motor drives the right transmission roller to rotate through the transmission, driving the transmission belt to circulate clockwise. The ball of the outer moving part contacts the right side of the graphite electrode and pushes it to the right. The rotating shaft drives the first synchronous wheel through the second synchronous wheel and the second synchronous belt. The two rotating rollers rotate synchronously through the first synchronous belt, the first bevel gear and the second bevel gear. The graphite electrode continues to rotate when it moves to the right, and the surface dust is blown away and cleaned through the U-shaped hollow strip air jet.

[0018] Step 3: When the right end of the graphite electrode moves to the bottom of the infrared optical inspection head, the travel switch triggers the inspection head to start and detect the distance between it and the electrode surface in real time. If the detection value is within the preset error range, the size is determined to be qualified; if the local distance exceeds the tolerance, it is determined that there is a defect at that location.

[0019] Step 4: When a local defect is detected, the solenoid valve is triggered to open, and the high-pressure gas in the gas cylinder is quickly injected into the top of the exhaust pipe through the connecting pipe. Due to the diameter limitation of the exhaust pipe, the gas pressure pushes the piston block downward, driving the indicator pen to mark the defect position;

[0020] Step 5: When the high-pressure gas in the exhaust cylinder is discharged through the exhaust pipe, the whistle is driven to sound, alerting the staff; if the overall size is detected to be unqualified, the solenoid valve will automatically close after being opened for 4 seconds, and only a short marking process will be carried out.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The motor drives the piston cylinder to reciprocate for suction and exhaust, and the multi-jet port design of the U-shaped hollow bar is combined to achieve all-round sweeping of the graphite electrode surface without dead angles, effectively removing dust and impurities, avoiding light reflection interference, and significantly improving the accuracy and reliability of subsequent infrared detection.

[0023] 2. The transmission belt and the moving ball are used to push the graphite electrode to the right, and the rotating roller is driven to rotate by the synchronous wheel and the bevel gear set, realizing the automatic conveying mode of "moving and rotating" of the electrode, which greatly simplifies the operation process and improves the detection efficiency.

[0024] 3. When a local defect is detected, the solenoid valve triggers the high-pressure gas in the air cylinder to push the piston block downward, driving the indicator pen to directly mark the defect location. At the same time, the wind whistle sounds an alarm, realizing rapid defect location and manual intervention, reducing the risk of missed detection.

[0025] 4. For graphite electrodes with diameters that are consistently too large or too small, the infrared optical inspection head only triggers a brief marking process for a few seconds, avoiding invalid depth inspections, concentrating resources on processing key defects, optimizing inspection resource allocation, and improving overall inspection efficiency.

[0026] In summary, the detection platform realizes automated continuous detection, greatly improving the efficiency of detection. In addition, it can also effectively mark defects, thereby facilitating subsequent troubleshooting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a graphite electrode safety detection platform proposed in the present invention;

[0028] Figure 2 for Figure 1A magnified view of point A;

[0029] Figure 3 Schematic diagram of the cooperation between the drive disc and the piston cylinder;

[0030] Figure 4 for Figure 1 Schematic diagram of the cross-section structure;

[0031] Figure 5 A cross-sectional diagram of the connection between the connection box and the gas cylinder;

[0032] Figure 6 This is an enlarged view of one of the moving parts.

[0033] In the figure: 1 detection table, 2 air hole, 3 mounting frame, 4 transmission, 5 drive motor, 6 rotating shaft, 7 rectangular groove, 8 rotating roller, 9 U-shaped hollow bar, 10 connecting plate, 11 connecting box, 12 gas cylinder, 13 one-way pipe, 14 exhaust pipe, 15 first synchronous wheel, 16 first synchronous belt, 17 first bevel gear, 18 second bevel gear, 19 ball, 20 mounting plate, 21 drive plate, 22 second synchronous wheel, 23 second synchronous belt, 24 piston cylinder, 25 drive rod, 26 first piston plate, 27 one-way port, 28 drive roller, 29 support roller, 30 vertical abutment plate, 31 drive belt, 32 release pipe, 33 release spring, 34 second piston plate, 35 connecting pipe, 36 infrared optical detection head, 37 travel switch, 38 exhaust pipe, 39 return spring, 40 piston block, 41 indicator pen, 42 cross plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] Reference Figures 1-6 A graphite electrode safety detection platform includes a detection platform 1. Two connecting plates 10 are symmetrically fixedly connected to the upper end of the detection platform 1. The upper ends of the two connecting plates 10 are commonly fixedly connected to a connection box 11. An infrared optical detection head 36 is installed on the inner top of the connection box 11. The infrared optical detection head 36 adopts an infrared ranging head, which can detect the distance between it and the graphite electrode. Specifically, if the graphite electrode is of qualified size, the distance between the infrared optical detection head 36 and the graphite electrode is always within the error range. If this error is exceeded, it means that there is a problem with its size. A limit switch 37 is installed on the rear side of the connection box 11. The limit switch 37 cooperates with the infrared optical detection head 36. When it detects that the right end of the graphite electrode is just below the infrared optical detection head 36, it can control the infrared optical detection head 36 to start working, and when its left end leaves the bottom of the infrared optical detection head 36, it controls the infrared optical detection head 36 to turn off.

[0036] As an embodiment of the present invention, it also includes a rotating mechanism, which includes a rectangular groove 7 at the upper end of the detection table 1, two rotating rollers 8 are rotatably connected between the left and right inner walls of the rectangular groove 7, two transmission rollers 28 are rotatably connected between the front and rear inner walls of the rectangular groove 7, a transmission belt 31 is wound around the two transmission rollers 28, a plurality of support rollers 29 for supporting the transmission belt 31 are rotatably connected between the front and rear inner walls of the rectangular groove 7, a plurality of abutting members are fixedly connected to the outside of the transmission belt 31, and the abutting members include a vertical abutment plate 30 fixedly connected to the outside of the transmission belt 31, and one side of the vertical abutment plate 30 is fixedly connected There is a horizontal plate 42, and a plurality of balls 19 are provided on the other side of the vertical abutment plate 30. The upper ends of the plurality of vertical abutment plates 30 located above extend to the gap between the two rotating rollers 8. Furthermore, when the driving mechanism is running, the transmission belt 31 will rotate clockwise in the front-to-back direction, and the two rotating rollers 8 will rotate synchronously. In this way, the columnar graphite electrode is placed between the two rotating rollers 8, and after it contacts both rotating rollers 8, it will rotate, and after one of the abutment parts rotates to the right side (at the ball 19) to contact the graphite electrode, the graphite electrode will move to the right, so that it rotates and moves to the right at the same time.

[0037] As an embodiment of the present invention, it also includes a driving mechanism, which is used to realize the operation of the rotating mechanism. The driving mechanism includes a transmission 4 installed on the front side of the detection platform 1. The transmission 4 adopts a reducer so that the rotation speed of the transmission belt 31 will not be too fast. The output end of the transmission 4 extends to the inside of the rectangular groove 7 and is fixedly connected to the front end of the rotating shaft of the right transmission roller 28. A mounting frame 3 is installed on the front side of the detection platform 1. A driving motor 5 is installed on the mounting frame 3. The output shaft of the driving motor 5 is fixedly connected to the input shaft of the transmission 4. Two mounting plates 20 are fixedly connected to the left side of the detection platform 1. The two mounting plates 20 are fixedly connected to each other. The rotating shaft 6 is rotatably connected, the front end of the rotating shaft 6 passes through the front mounting plate 20, and the second synchronous wheel 22 is installed on the rotating shaft 6 and the output shaft of the driving motor 5. The two second synchronous wheels 22 are connected by a second synchronous belt 23. The left end rotating shafts of the two rotating rollers 8 extend to the outside and are installed with the first synchronous wheel 15. The two first synchronous wheels 15 are connected by the first synchronous belt 16. The rear end of the rotating shaft 6 passes through the rear mounting plate 20 and is fixedly connected with the second bevel gear 18. The left rotating shaft of the rotating roller 8 on the front side is installed with the first bevel gear 17, and the first bevel gear 17 is engaged with the second bevel gear 18.

[0038] As an embodiment of the present invention, it also includes a cleaning mechanism, which is used to clean dust on the graphite electrode before testing. The cleaning mechanism includes a piston cylinder 24 fixedly connected to the front side of the testing platform 1, and a first piston plate 26 that can slide up and down is provided in the piston cylinder 24. The front end of the rotating shaft 6 is fixedly connected to the driving disk 21, and the front eccentric part of the driving disk 21 is rotatably connected to the driving rod 25. The other end of the driving rod 25 is rotatably connected to the upper end of the first piston plate 26. The upper end of the connecting box 11 is fixedly connected to the gas cylinder 12, and the inner top of the gas cylinder 12 is connected to the outside world through the air hole 2. A second piston plate 34 that can slide up and down is provided in the gas cylinder 12, and the upper end of the second piston plate 34 is elastically connected to the inner top of the gas cylinder 12 through a release spring 33. The upper end of the testing platform 1 is fixedly connected to a U-shaped hollow bar 9, and a plurality of air jets are provided at the bottom inner side of the horizontal part of the U-shaped hollow bar 9. The inner top space of the gas cylinder 12 is connected to the interior of the U-shaped hollow bar 9 through a release pipe 32.

[0039] As an embodiment of the present invention, the inner bottom space of the piston cylinder 24 is connected to the outside world through the one-way port 27, and the inner bottom space of the piston cylinder 24 is connected to the inner bottom hole of the air cylinder 12 through the one-way tube 13. One-way valves are installed inside the one-way port 27 and the one-way tube 13. The one-way valve inside the one-way port 27 flows in a one-way direction from the outside world into the piston cylinder 24, and the one-way valve inside the one-way tube 13 flows in a one-way direction from the piston cylinder 24 into the air cylinder 12.

[0040] As an embodiment of the present invention, the inner top of the connecting box 11 is fixedly connected to the exhaust cylinder 38, and a piston block 40 that can slide up and down is provided in the exhaust cylinder 38. The upper end of the piston block 40 is elastically connected to the inner top of the exhaust cylinder 38 through a restoring spring 39. The spring coefficient of the restoring spring 39 is smaller than the spring coefficient of the release spring 33. The inner bottom space of the gas cylinder 12 is connected with the inner top space of the exhaust cylinder 38 through a connecting pipe 35. A solenoid valve is installed in the connecting pipe 35, and the solenoid valve is electrically connected to the infrared optical detection head 36. The inner top space of the exhaust cylinder 38 is connected to the outside world through the exhaust pipe 14. A whistle is installed inside the exhaust pipe 14. The diameter of the exhaust pipe 14 is half of the diameter of the connecting pipe 35. The lower end of the piston block 40 is fixedly connected to the indicator pen 41.

[0041] As an embodiment of the present invention, when the infrared optical detection head 36 detects that the position of the graphite electrode surface is not within the set range, the solenoid valve will be triggered to energize. When the solenoid valve is energized, the gas in the bottom space of the gas cylinder 12 will be released from the connecting pipe 35, and a large amount of gas will be released into the top space of the exhaust cylinder 38. Since the exhaust speed of the exhaust pipe 14 is slow (the exhaust pipe 14 will also make a whistle sound when exhausting, reminding the staff that there is a problem with the graphite electrode and to conduct a secondary inspection later), the air pressure in the top space therein will accumulate, which will cause the piston block 40 to move down, and the indicator pen 41 to move down so that it contacts the graphite electrode and marks the position. This method can be used to detect damage and depression on the graphite electrode surface. If the size of the graphite electrode is incorrect, that is, The overall size becomes larger or smaller. At this time, the data detected by the infrared optical detection head 36 is always in a constant larger or smaller state. In this case, the solenoid valve will only be controlled to start and then closed after 4 seconds. If its size is unqualified, it will not be subjected to deep surface detection. The lower end of the indicator pen 41 penetrates the inner bottom of the exhaust pipe 38. It should be noted that a large amount of gas is gathered at the bottom of the gas cylinder 12 in the initial state. At this time, the second piston plate 34 is in a position just below the second piston plate 34. When the first piston plate 26 moves up and down and supplies gas to the gas cylinder 12, the gas supply speed is faster and the gas supply per unit time is larger. Even when the solenoid valve in the connecting pipe 35 is opened, part of the gas will be released from the release pipe 32 after supply to achieve a cleaning operation.

[0042] In the present invention, before detection, the cleaning mechanism is started: the driving motor 5 drives the rotating shaft 6 to rotate through the transmission 4, and the driving disk 21 at the front end of the rotating shaft 6 drives the driving rod 25 to move eccentrically, and the driving rod 25 pushes the first piston plate 26 in the piston cylinder 24 to slide back and forth. After the gas is sucked in through the one-way port 27 (the one-way valve allows external gas to enter the piston cylinder 24), it is pressed into the bottom of the gas cylinder 12 through the one-way tube 13 (the one-way valve allows gas to enter the gas cylinder 12 in one direction). In the initial state, a large amount of gas is accumulated at the bottom of the gas cylinder 12. At this time, the second piston plate 34 is in a position just below the second piston plate 34. As the gas is supplied, the second piston plate 34 moves up to a position higher than the release tube 32, so that part of the gas is released through the release tube 32. The gas in the gas cylinder 12 is continuously transported to the U-shaped hollow bar 9 through the release tube 32 and ejected through multiple air jets.

[0043] The cylindrical graphite electrode is placed between the two rotating rollers 8 in the rectangular groove 7 of the detection table 1 so that it contacts the two rotating rollers 8. The driving motor 5 drives the right transmission roller 28 to rotate through the transmission 4. The transmission roller 28 drives the transmission belt 31 to circulate clockwise. The multiple abutments (vertical abutment plate 30, horizontal plate 42 and ball 19) on the outside of the transmission belt 31 move with the belt. When the ball 19 of a certain abutment contacts the right side of the graphite electrode, it pushes the graphite electrode to the right. At the same time, the rotating shaft 6 rotates through the second synchronous wheel 22 and the second synchronous belt 23. Then, the first synchronous wheel 15 and the first synchronous belt 16 cooperate with the first bevel gear 17 and the second bevel gear 18 to drive the two rotating rollers 8 to rotate synchronously, so that the graphite electrode continues to rotate during the rightward movement, achieving a state of rotating and moving. When passing through the U-shaped hollow bar 9, it will be fully self-cleaned and the dust on it will be blown off to prevent the dust from affecting the accuracy of subsequent detection (dust will cause changes in light reflection and affect detection).

[0044] When the right end of the graphite electrode moves to the position directly below the infrared optical detection head 36, the limit switch 37 detects the position signal and triggers the infrared optical detection head 36 to start real-time detection of the distance between it and the graphite electrode surface. If the surface dimensions of the graphite electrode are qualified, the distance value detected by the infrared optical detection head 36 is always within the preset error range; if the local distance is detected to be outside the error range (such as the presence of damage or depression on the surface), it is determined that there is a defect at that location;

[0045] When the infrared optical inspection head 36 detects a local defect, it triggers the solenoid valve to open, and the high-pressure gas at the bottom of the gas cylinder 12 is quickly injected into the top space of the exhaust pipe 38 through the connecting pipe 35. Because the diameter of the exhaust pipe 14 (one-half of the connecting pipe 35) limits the exhaust speed, the air pressure at the top of the exhaust pipe 38 rises rapidly, pushing the piston block 40 to overcome the elastic force of the return spring 39 and move downward, driving the indicator pen 41 to contact the surface of the graphite electrode and leave a mark at the defect location. At the same time, when the high-pressure gas is discharged through the exhaust pipe 14, it drives the whistle to sound, alerting the staff. It should be noted that if the overall size of the graphite electrode is detected to be unqualified (such as the diameter is continuously too large or too small), the infrared optical inspection head 36 will only trigger the solenoid valve to open for 4 seconds and then automatically close, briefly marking the process without performing deep surface inspection. After the inspection is completed, the material is unloaded from the right side of the drive belt 31. Using the above method, continuous and comprehensive inspection can be achieved, greatly improving the efficiency of inspection.

[0046] The present invention also discloses a method for detecting the safety of graphite electrodes, which uses the above-mentioned detection platform and includes the following steps:

[0047] Step 1: Start the cleaning mechanism. The drive motor 5 drives the rotating shaft 6 to rotate through the transmission 4. The front drive disc 21 pushes the first piston plate 26 in the piston cylinder 24 to slide back and forth through the drive rod 25. The gas is sucked in through the one-way port 27 and then pressed into the bottom of the gas reservoir 12 through the one-way pipe 13, pushing the second piston plate 34 upward to above the release pipe 32. The gas is continuously transported through the release pipe 32 to the air outlet of the U-shaped hollow bar 9 for discharge.

[0048] Step 2: Place the cylindrical graphite electrode between the two rotating rollers 8 in the rectangular groove 7 of the testing table 1. The driving motor 5 drives the right transmission roller 28 to rotate through the transmission 4, driving the transmission belt 31 to circulate clockwise. The ball 19 of the outer moving part contacts the right side of the graphite electrode and pushes it to the right. The rotating shaft 6 drives the first synchronous wheel 15 through the second synchronous wheel 22 and the second synchronous belt 23. The two rotating rollers 8 rotate synchronously through the first synchronous belt 16, the first bevel gear 17 and the second bevel gear 18. The graphite electrode continues to rotate when it moves to the right, and the surface dust is blown away and cleaned through the air outlet of the U-shaped hollow bar 9.

[0049] Step 3: When the right end of the graphite electrode moves to the position directly below the infrared optical detection head 36, the limit switch 37 triggers the detection head to start and detect the distance between it and the electrode surface in real time; if the detection value is within the preset error range, the size is determined to be qualified; if the local distance exceeds the tolerance, it is determined that there is a defect at that position;

[0050] Step 4: When a local defect is detected, the solenoid valve is triggered to open, and the high-pressure gas in the gas reservoir 12 is quickly injected into the top of the exhaust pipe 38 through the connecting pipe 35. Due to the diameter limitation of the exhaust pipe 14, the gas pressure pushes the piston block 40 downward, driving the indicator pen 41 to mark the defect location;

[0051] Step 5: When the high-pressure gas in the exhaust cylinder 38 is discharged through the exhaust pipe 14, the whistle is driven to sound, alerting the staff; if the overall size is detected to be unqualified, the solenoid valve will automatically close after being opened for 4 seconds, and only a short marking process will be carried out.

[0052] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A graphite electrode safety detection platform, characterized in that: include: A detection platform (1), wherein two connection plates (10) are symmetrically fixedly connected to the upper end of the detection platform (1), a connection box (11) is fixedly connected to the upper ends of the two connection plates (10), an infrared optical detection head (36) is installed on the inner top of the connection box (11), and a travel switch (37) is installed on the rear side of the connection box (11), and the travel switch (37) cooperates with the infrared optical detection head (36); A rotating mechanism, wherein the rotating mechanism includes a rectangular groove (7) at the upper end of the detection platform (1), two rotating rollers (8) are rotatably connected between the left and right inner walls of the rectangular groove (7), two transmission rollers (28) are rotatably connected between the front and rear inner walls of the rectangular groove (7), a transmission belt (31) is wound around the two transmission rollers (28), a plurality of support rollers (29) for supporting the transmission belt (31) are rotatably connected between the front and rear inner walls of the rectangular groove (7), a plurality of abutting members are fixedly connected to the outer side of the transmission belt (31), the abutting members include a vertical abutting plate (30) fixedly connected to the outer side of the transmission belt (31), a horizontal plate (42) is fixedly connected to one side of the vertical abutting plate (30), a plurality of balls (19) are provided on the other side of the vertical abutting plate (30), and the upper ends of the plurality of vertical abutting plates (30) located above extend to the gap between the two rotating rollers (8); A driving mechanism, the driving mechanism being used to realize the operation of the rotating mechanism; The cleaning mechanism is used to clean dust from the graphite electrode before testing.

2. A graphite electrode safety detection platform according to claim 1, characterized in that: The driving mechanism comprises a transmission (4) mounted on the front side of the detection platform (1); the output end of the transmission (4) extends into the interior of the rectangular slot (7) and is fixedly connected to the front end of the rotating shaft of the right transmission roller (28); a mounting frame (3) is mounted on the front side of the detection platform (1); a driving motor (5) is mounted on the mounting frame (3); and the output shaft of the driving motor (5) is fixedly connected to the input shaft of the transmission (4).

3. A graphite electrode safety detection platform according to claim 2, characterized in that: The left side of the detection platform (1) is fixedly connected to two mounting plates (20), and a rotating shaft (6) is rotatably connected between the two mounting plates (20). The front end of the rotating shaft (6) passes through the front mounting plate (20), and the rotating shaft (6) and the output shaft of the driving motor (5) are both installed with a second synchronous wheel (22), and the two second synchronous wheels (22) are connected by a second synchronous belt (23). The left end rotating shafts of the two rotating rollers (8) extend to the outside and are installed with a first synchronous wheel (15), and the two first synchronous wheels (15) are connected by a first synchronous belt (16). The rear end of the rotating shaft (6) passes through the rear mounting plate (20) and is fixedly connected with a second bevel gear (18). The left rotating shaft of the rotating roller (8) located on the front side is installed with a first bevel gear (17), and the first bevel gear (17) is meshed with the second bevel gear (18).

4. A graphite electrode safety detection platform according to claim 3, characterized in that: The cleaning mechanism comprises a piston cylinder (24) fixedly connected to the front side of the detection platform (1), a first piston plate (26) which can slide up and down is arranged in the piston cylinder (24), a driving disk (21) is fixedly connected to the front end of the rotating shaft (6), a driving rod (25) is rotatably connected to the front eccentric position of the driving disk (21), and the other end of the driving rod (25) is rotatably connected to the upper end of the first piston plate (26).

5. A graphite electrode safety detection platform according to claim 4, characterized in that: The upper end of the connecting box (11) is fixedly connected to the gas cylinder (12), the inner top of the gas cylinder (12) is connected to the outside through the air hole (2), and a second piston plate (34) that can slide up and down is provided in the gas cylinder (12), and the upper end of the second piston plate (34) is elastically connected to the inner top of the gas cylinder (12) through a release spring (33).

6. A graphite electrode safety detection platform according to claim 5, characterized in that: The upper end of the detection platform (1) is fixedly connected to a U-shaped hollow bar (9), and a plurality of air jets are provided at the bottom of the horizontal portion of the U-shaped hollow bar (9). The top space of the gas storage cylinder (12) is connected to the interior of the U-shaped hollow bar (9) through a release pipe (32).

7. A graphite electrode safety detection platform according to claim 6, characterized in that: The inner bottom space of the piston cylinder (24) is communicated with the outside world through a one-way port (27), and the inner bottom space of the piston cylinder (24) is communicated with the inner bottom hole of the gas storage cylinder (12) through a one-way tube (13). One-way valves are installed inside the one-way port (27) and the one-way tube (13). The one-way valve inside the one-way port (27) allows the outside world to flow into the piston cylinder (24) in one direction, and the one-way valve inside the one-way tube (13) allows the piston cylinder (24) to flow into the gas storage cylinder (12) in one direction.

8. A graphite electrode safety detection platform according to claim 7, characterized in that: The inner top of the connecting box (11) is fixedly connected to an exhaust cylinder (38), and a piston block (40) that can slide up and down is provided in the exhaust cylinder (38). The upper end of the piston block (40) is elastically connected to the inner top of the exhaust cylinder (38) through a restoring spring (39). The inner bottom space of the gas storage cylinder (12) is connected to the inner top space of the exhaust cylinder (38) through a connecting pipe (35). A solenoid valve is installed in the connecting pipe (35), and the solenoid valve is electrically connected to the infrared optical detection head (36). The inner top space of the exhaust cylinder (38) is connected to the outside world through an exhaust pipe (14). A whistle is installed inside the exhaust pipe (14). The diameter of the exhaust pipe (14) is half of the diameter of the connecting pipe (35). The lower end of the piston block (40) is fixedly connected to the indicator pen (41), and the lower end of the indicator pen (41) passes through the inner bottom of the exhaust cylinder (38).

9. A method for detecting safety of graphite electrodes, using the detection platform according to claim 8, characterized in that: The following steps are involved: The first step is to start the cleaning mechanism, drive the motor (5) through the transmission (4) to drive the rotating shaft (6) to rotate, and the front end drive disc (21) pushes the first piston plate (26) in the piston cylinder (24) to slide back and forth through the drive rod (25). The gas is sucked in through the one-way port (27) and then pressed into the bottom of the gas storage cylinder (12) through the one-way pipe (13), pushing the second piston plate (34) to move up to above the release pipe (32). The gas is continuously transported to the air outlet of the U-shaped hollow bar (9) through the release pipe (32) and ejected; Step 2: Place the columnar graphite electrode between the two rotating rollers (8) in the rectangular groove (7) of the test table (1), and the driving motor (5) drives the right transmission roller (28) to rotate through the transmission (4), driving the transmission belt (31) to circulate clockwise, and the ball (19) of the outer side of the moving member contacts the right side of the graphite electrode and pushes it to move right. The rotating shaft (6) drives the first synchronous wheel (15) through the second synchronous wheel (22) and the second synchronous belt (23), and the two rotating rollers (8) rotate synchronously through the first synchronous belt (16), the first bevel gear (17) and the second bevel gear (18). When the graphite electrode moves to the right, it continues to rotate, and the surface dust is blown away and cleaned through the air outlet of the U-shaped hollow bar (9); Step 3: When the right end of the graphite electrode moves to the position just below the infrared optical detection head (36), the travel switch (37) triggers the detection head to start and detect the distance between it and the electrode surface in real time; if the detection value is within the preset error range, the size is determined to be qualified; if the local distance exceeds the tolerance, it is determined that there is a defect at that position; Step 4: When a local defect is detected, the electromagnetic valve is triggered to open, and the high-pressure gas in the gas cylinder (12) is quickly injected into the top of the exhaust cylinder (38) through the connecting pipe (35). Due to the diameter limitation of the exhaust pipe (14), the gas pressure pushes the piston block (40) downward, driving the indicator pen (41) to mark the defect position; Step 5: When the high-pressure gas in the exhaust cylinder (38) is discharged through the exhaust pipe (14), the whistle is driven to sound, alerting the staff; if the overall size is detected to be unqualified, the solenoid valve is automatically closed after being opened for 4 seconds, and only a short marking process is performed.

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