A billet position detecting device

Abstract

The utility model discloses a billet position detection device, including laser detection mechanism and set between two roll -way's ball -bumping insulation induction mechanism and whether the PLC control unit for controlling laser detection mechanism, ball -bumping insulation induction mechanism work and roll -way whether motion, ball -bumping insulation induction mechanism upper end's ball -bumping is slightly higher than the height of the contact surface between roll -way and billet, laser detection mechanism's laser beam irradiation is in the position where ball -bumping insulation induction mechanism is located, the PLC control unit receives and handles the induction signal of laser detection mechanism, ball -bumping insulation induction mechanism, the billet position detection device provided by the utility model can detect the position condition of billet on one hand, prevent the accident of blocking billet, on the other hand can reasonably control roll -way start -stop, reduce the electric energy consumption and spare part wear and tear.

Description

Technical Field

[0001] This utility model relates to the field of steel metallurgical industry technology, and in particular to a billet position detection device. Background Technology

[0002] In the steel metallurgical industry, with the rapid development of modern smelting technology, steel mills pay close attention to the position of steel billets. If position feedback is not timely, billets behind can collide with those in front, causing blockages. Furthermore, continuously operating the roller conveyor wastes energy and causes wear on the rollers, motors, chains, and gears, affecting equipment lifespan. Currently, roller conveyor control is manual, relying on visual inspection to start and stop the conveyor, or on proximity switch signals to determine the billet status of each section. However, since the surface temperature of continuously cast steel billets is around 700℃, proximity switches are easily damaged by high temperatures. Moreover, proximity switch signals are susceptible to interference from surrounding high temperatures, dust, and iron oxide scale, leading to false triggering and inaccurate sensing. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a billet position detection device, which can detect the position of the billet to prevent billet blockage accidents, and can also reasonably control the start and stop of the roller conveyor to reduce power consumption and spare parts wear.

[0004] The technical solution provided by this utility model is as follows: A billet position detection device includes a laser detection mechanism, a ball-collision insulation sensing mechanism disposed between two roller conveyors, and a PLC control unit for controlling whether the laser detection mechanism and the ball-collision insulation sensing mechanism operate and whether the roller conveyors move. The ball at the upper end of the ball-bearing insulating sensing mechanism is slightly higher than the contact surface between the roller and the billet, so that when the billet passes over the ball-bearing insulating sensing mechanism, it will come into contact with the ball of the ball-bearing insulating sensing mechanism and trigger the sensing signal of the ball-bearing insulating sensing mechanism. The laser beam emitted by the laser detection mechanism illuminates the location of the ball-bearing insulation sensing mechanism so that when the billet moves above the ball-bearing insulation sensing mechanism, the sensing signal of the laser detection mechanism is triggered simultaneously. The PLC control unit receives and processes the sensing signals from the laser detection mechanism and the ball-impact insulation sensing mechanism.

[0005] Preferably, the number of laser detection mechanisms and ball-impact insulation sensing mechanisms are the same and they are configured in a one-to-one combination.

[0006] Preferably, the number of ball-bearing insulating induction mechanisms is related to the total number of roller conveyors, the distance between two roller conveyors, and the length of the steel billet. The distance L between two adjacent ball-bearing insulating induction mechanisms is greater than the length of a steel billet and less than the distance between n+1 rollers, where the number of n is equal to the number of roller supports required for a steel billet.

[0007] Preferably, the ball-impact insulation sensing mechanism includes a ball, a tower spring, a tower spring mounting plate, and a height adjustment bracket unit. The ball is fixedly mounted on the upper end of the tower spring. The tower spring is mounted on the tower spring mounting plate. The tower spring mounting plate is mounted on the height adjustment bracket unit via an insulating ceramic flange.

[0008] Preferably, the height-adjustable support unit comprises two "∏"-shaped frames with oppositely different dimensions. The lower "∏" shaped frame has waist-shaped holes on the opposite side plates that form the U-shaped opening. The upper "∏" shaped frame and the lower "∏" shaped frame are connected by adjusting screws located in the waist-shaped holes.

[0009] Preferably, the ball is a hollow metal sphere. The insulating ceramic flange has a hollow structure.

[0010] Preferably, the upper surface of the tower spring mounting plate is provided with a mounting groove for fastening and welding the tower spring.

[0011] Preferably, the laser detection mechanism includes a laser and an angle-adjustable component, wherein the laser is mounted on the angle-adjustable component.

[0012] Preferably, the laser is equipped with a water-cooling unit and an air-cooling unit. The water inlet of the water-cooling unit is located on the lower surface of the laser, and the water outlet of the water-cooling unit is located on the upper surface of the laser. The air inlet of the air-cooling unit is located near the cable port of the laser and is connected to the cable port, while the front horn of the laser serves as the air outlet of the air-cooling unit.

[0013] Preferably, the angle-adjustable component includes a pitch support, a rotation support, a height support, and a fixed support. The upper end of the pitch support is connected to the base of the laser via a pitch pin. The rotating support and the pitch support are connected by pitch screws. The rotating bracket is connected to the upper end of the height bracket by a rotating screw. The lower end of the height bracket is installed inside the fixed bracket.

[0014] This invention has the following advantages over the prior art: This utility model's billet position detection device, through the combination of a ball-bearing insulated sensing mechanism and a laser detection mechanism, enables redundant detection. It includes both laser-based arrival detection and ball-bearing arrival triggering, preventing inaccurate detection caused by a single sensor malfunction and increasing the system's success rate. The ball-bearing insulated sensing mechanism's contact-based detection method further enhances the system's reliability. Simultaneously, this billet position detection device enables segmented automatic control of the roller conveyor, replacing manual operation, preventing billet blockage accidents, saving energy wasted due to motor idling, and extending the service life of the roller conveyor, motor, and chain. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the billet position detection device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the billet position detection device in specific use according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the ball-collision insulation sensing mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram of the laser detection mechanism in an embodiment of the present invention; Figure 5 for Figure 4 Side view.

[0017] Figure label: 100. Steel billet; 200. Laser inspection mechanism; 21. Laser inspection mechanism one; 22. Laser inspection mechanism two; 201. Laser base; 202. Pitch support; 203. Pitch pin; 204. Rotation support; 205. Pitch screw; 206. Rotation screw; 207. Height support; 208. Fixed support; 210. Laser; 211. Water outlet of water-cooled unit; 212. Air inlet of air-cooled unit; 213. Cable port; 214. Water inlet of water-cooled unit; 300. Ball-impact insulation induction machine Structure; 31. Ball-collision insulation sensing mechanism one; 32. Ball-collision insulation sensing mechanism two; 301. Ball-collision; 302. Tower spring; 303. Spring mounting plate; 304. Insulating ceramic flange; 305. Upper "∏" shaped frame; 306. Adjusting screw; 307. Lower "∏" shaped frame; 400. Roller conveyor; 41. Roller conveyor one; 42. Roller conveyor two; 43. Roller conveyor three; 44. Roller conveyor four; 45. Roller conveyor five; 46. Roller conveyor six; 47. Roller conveyor seven; 48. Roller conveyor eight; 49. Roller conveyor nine; Roller conveyor. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1-5 As shown, this utility model embodiment provides a billet position detection device, including a laser detection mechanism 200, a ball-bearing insulation sensing mechanism 300 disposed between two roller conveyors 400, and a PLC control unit for controlling whether the laser detection mechanism 200 and the ball-bearing insulation sensing mechanism 300 are working and whether the roller conveyors 400 are moving. The ball 301 at the upper end of the ball-bearing insulation sensing mechanism 300 is slightly higher than the height of the contact surface between the roller conveyor 400 and the billet 100 so that when the billet 100 passes over the ball-bearing insulation sensing mechanism 300, it will contact the ball 301 of the ball-bearing insulation sensing mechanism 300 and trigger a collision. The ball insulation sensing mechanism 300 senses the signal; the laser beam 201 emitted by the laser detection mechanism 200 illuminates the location of the ball insulation sensing mechanism 300 so that when the billet 100 moves above the ball insulation sensing mechanism 300, the sensing signal of the laser detection mechanism 200 is triggered simultaneously. Therefore, there are two sensing signals triggered at this location (when the billet 100 moves above the ball insulation sensing mechanism 300), achieving redundant detection and preventing signal loss caused by a single sensor. The PLC control unit receives and processes the sensing signals from the laser detection mechanism 200 and the ball insulation sensing mechanism 300.

[0020] In this embodiment, the number of laser detection mechanisms 200 and ball-impact insulation sensing mechanisms 300 are the same and they are matched in a one-to-one combination.

[0021] In this embodiment, the number of ball-bump insulation sensing mechanisms 300 is related to the total number of rollers, the distance between two rollers 400, and the length of the billet 100. The setting distance L between two adjacent ball-bump insulation sensing mechanisms 300 is greater than the length of a billet 100 and less than the distance between n+1 rollers 400, where the number of n is equal to the number of rollers 4000 required to support a billet 100.

[0022] A specific embodiment of the billet position detection device used in this example is as follows: The billet travels from left to right. When there is no billet between roller conveyor 1 (41) and roller conveyor 2 (42), the laser detection mechanism 1 (21) and the ball-bearing insulation sensing mechanism 1 (31) send a disconnection signal to the system PLC control unit. At this time, the PLC control unit sequentially controls roller conveyor 6 (46), roller conveyor 5 (45), roller conveyor 44, roller conveyor 3 (43), and roller conveyor 2 (42) to move, conveying billet 11 forward. After billet 11 separates from the laser detection mechanism 2 (22) and the ball-bearing insulation sensing mechanism 2 (32), the PLC control unit immediately controls roller conveyor 6 (46), roller conveyor 5 (45), and roller conveyor 44 to stop moving, while roller conveyor 3 (43) and roller conveyor 2 (42) continue moving. After billet 11 contacts the laser detection mechanism 1 (21) and the ball-bearing insulation sensing mechanism 1 (31), the PLC control unit immediately controls roller conveyor 3 (43) and roller conveyor 2 (42) to stop moving. At this time, billet 11 completes the first... During the first stage of transport, when the laser detection mechanism 22 and the ball-bearing insulation sensing mechanism 232 send a disconnection signal to the system PLC control unit, the PLC control unit sequentially controls the movement of roller conveyors 949, 848, 747, 646, and 545 to convey the billet 212 forward. After the billet 212 disengages from the laser detection mechanism 323 and the ball-bearing insulation sensing mechanism 333, the PLC control unit immediately stops the movement of roller conveyors 949, 848, and 747, while roller conveyors 646 and 545 continue to move. After the billet 212 contacts the laser detection mechanism 222 and the ball-bearing insulation sensing mechanism 232, the PLC control unit immediately stops the movement of roller conveyors 646 and 545. At this point, the billet 212 completes the second stage of transport, and the subsequent transport of billets 100 proceeds sequentially.

[0023] In this embodiment, the ball-bearing insulation sensing mechanism 300 includes a ball-bearing element 301, a spring 302, a spring mounting plate 303, and a height adjustment bracket unit. The ball-bearing element 301 is fixedly mounted on the upper end of the spring 302. The spring 302 is mounted on the spring mounting plate 303, which is mounted on the height adjustment bracket unit via an insulating ceramic flange 304. The spring mounting plate 303 and the insulating ceramic flange 304 are connected by three screws, and the insulating ceramic flange 304 is connected to the height adjustment bracket unit by three screws. The center of the height adjustment bracket unit is milled downwards by several millimeters to position it with the inlet of the insulating ceramic flange 304 and ensure a tight fit. The connecting cable is installed at the circular hole of the spring mounting plate 303. Because the insulating ceramic flange 304 isolates the lower metal structure, the resistance is a specific value when the billet is not in contact with the ball-bearing element 301. When the billet contacts the ball-bearing element 301, the resistance value changes geometrically, at which point the system determines that the billet is in position.

[0024] In this embodiment, the height adjustment bracket unit includes two "∏"-shaped frames with different relative sizes. The lower "∏"-shaped frame 307 has waist-shaped holes on the opposite side plates forming a U-shaped opening. The upper "∏"-shaped frame 306 and the lower "∏"-shaped frame 307 are connected by adjusting screws 306 located in the waist-shaped holes. The height of the ball 301 can be adjusted by adjusting the position of the adjusting screws 306 in the waist-shaped holes.

[0025] In this embodiment, the contact ball 301 is a hollow metal ball, made of solid steel with a hollowed-out structure. This lightweight design reduces the pressure on the spring 302. The tapered design of the spring 302 ensures strong resilience when the contact ball 301 contacts the steel billet. The upper support surface of the spring 302 is inserted into the contact ball 301 and welded together to ensure strong fastening. The insulating ceramic flange 304 is hollow and made of zirconium oxide to improve its heat resistance. Its hollow internal structure enhances the impact resistance of the ceramic.

[0026] In this embodiment, the upper surface of the tower spring mounting plate 303 is provided with a mounting groove for fastening welding of the tower spring (the center of the spring mounting plate 303 is milled down a few millimeters to form the mounting groove), so as to position and weld with the tower spring 302 to ensure fastening.

[0027] In this embodiment, the laser detection mechanism 200 includes a laser 210 and an angle adjustable component, with the laser 210 mounted on the angle adjustable component.

[0028] In this embodiment, the laser is equipped with a water-cooling unit and an air-cooling unit. The water inlet 214 of the water-cooling unit is located on the lower surface of the laser 210, and the water outlet 211 of the water-cooling unit is located on the upper surface of the laser 210. The air inlet 212 of the air-cooling unit is located near the cable port 213 of the laser 210 and is connected to the cable port 213. The front horn of the laser 210 serves as the air outlet of the air-cooling unit.

[0029] In this embodiment, the angle-adjustable component includes a pitch bracket 202, a rotation bracket 204, a height bracket 207, and a fixed bracket 208. The upper end of the pitch bracket 202 is connected to the laser base 201 via a pitch pin 203. The rotation bracket 204 is connected to the pitch bracket 202 via a pitch screw 205. The upper end of the rotation bracket 204 is connected to the height bracket 207 via a rotation screw 206. The lower end of the height bracket 207 is installed inside the fixed bracket 208.

[0030] Because the surface temperature of the billet 100 reaches 700 degrees Celsius, the ambient temperature is high, and there is a lot of dust on site, the laser 210 needs to be cooled and purged. The method is as follows: cooling water flows in from the lower part of the water-cooling unit inlet 214, circulates inside the laser 210, and then flows out from the water-cooling unit outlet 211, thus cooling the laser 210. Cooling air flows in from the air inlet 212 of the air-cooling unit, circulates inside the laser 210, directly purifies the electronic components of the laser 210, and then flows out from the flared end of the laser 210. This serves two purposes: cooling and purifying the surface of the laser lens to prevent dust adhesion. The cable is connected to the air inlet 212 of the air-cooling unit through the cable port 213, which also serves to cool the cable.

[0031] The laser 210's orientation adjustment mechanism is as follows: The laser base 201 is connected to the pitch bracket 202 via a pitch pin 203. The upper end of the adjusting screw 205 is connected to the pitch bracket 202, and the lower end is connected to the rotation bracket 204. The pitch angle of the laser 210 can be adjusted by adjusting the vertical displacement of the pitch screw 205. The rotation bracket 204 is connected to the height bracket 205 via a rotating screw 206. The rotation angle of the rotation bracket 204 can be adjusted by tightening or loosening the rotating screw 206. The height bracket 207 is installed inside the fixed bracket 208 and can be moved up and down to adjust the vertical height of the laser 210.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A billet position detection device, characterized in that, It includes a laser detection mechanism, a ball-collision insulation sensing mechanism installed between two roller conveyors, and a PLC control unit for controlling whether the laser detection mechanism and the ball-collision insulation sensing mechanism are working and whether the roller conveyors are moving. The ball at the upper end of the ball-bearing insulating sensing mechanism is slightly higher than the contact surface between the roller and the billet, so that when the billet passes over the ball-bearing insulating sensing mechanism, it will come into contact with the ball of the ball-bearing insulating sensing mechanism and trigger the sensing signal of the ball-bearing insulating sensing mechanism. The laser beam emitted by the laser detection mechanism illuminates the location of the ball-bearing insulation sensing mechanism so that when the billet moves above the ball-bearing insulation sensing mechanism, the sensing signal of the laser detection mechanism is triggered simultaneously. The PLC control unit receives and processes the sensing signals from the laser detection mechanism and the ball-impact insulation sensing mechanism.

2. The billet position detection device according to claim 1, characterized in that, The number of laser detection mechanisms and ball-impact insulation sensing mechanisms are the same, and they are configured in a one-to-one combination.

3. The billet position detection device according to claim 2, characterized in that, The number of ball-bearing insulating induction mechanisms is related to the total number of roller conveyors, the distance between two roller conveyors, and the length of the steel billet. The distance L between two adjacent ball-bearing insulating induction mechanisms is greater than the length of a steel billet and less than the distance between n+1 rollers, where the number of n is equal to the number of roller supports required for a steel billet.

4. The billet position detection device according to claim 1, 2, or 3, characterized in that, The ball-bearing insulation sensing mechanism includes a ball, a tower spring, a tower spring mounting plate, and a height adjustment bracket unit. The ball is fixedly mounted on the upper end of the tower spring. The tower spring is mounted on the tower spring mounting plate. The tower spring mounting plate is mounted on the height adjustment bracket unit via an insulating ceramic flange.

5. The billet position detection device according to claim 4, characterized in that, The height-adjustable support unit includes two "∏"-shaped frames with different dimensions set opposite to each other. The lower "∏" shaped frame has waist-shaped holes on the opposite side plates that form the U-shaped opening. The upper "∏" shaped frame and the lower "∏" shaped frame are connected by adjusting screws located in the waist-shaped holes.

6. The billet position detection device according to claim 4, characterized in that, The ball is a hollow metal ball. The insulating ceramic flange has a hollow structure.

7. The billet position detection device according to claim 4, characterized in that, The upper surface of the tower spring mounting plate is provided with a mounting groove for fastening and welding the tower spring.

8. The billet position detection device according to claim 1, 2, or 3, characterized in that, The laser detection mechanism includes a laser and an angle-adjustable component, with the laser mounted on the angle-adjustable component.

9. The billet position detection device according to claim 8, characterized in that, The laser is equipped with a water-cooling unit and an air-cooling unit. The water inlet of the water-cooling unit is located on the lower surface of the laser, and the water outlet of the water-cooling unit is located on the upper surface of the laser. The air inlet of the air-cooling unit is located near the cable port of the laser and is connected to the cable port, while the front horn of the laser serves as the air outlet of the air-cooling unit.

10. The billet position detection device according to claim 8, characterized in that, The angle-adjustable component includes a pitch support, a rotation support, a height support, and a fixed support. The upper end of the pitch support is connected to the base of the laser via a pitch pin. The rotating support and the pitch support are connected by pitch screws. The rotating bracket is connected to the upper end of the height bracket by a rotating screw. The lower end of the height bracket is installed inside the fixed bracket.

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