Automatic billet casting and discharging system

Abstract

The utility model relates to metallurgical technical field relates to billet continuous casting automatic delivery system, for solving the comprehensive problem of low operation efficiency, serious energy waste of idle running of equipment, abnormal wear of mechanical parts and high risk of production safety and quality etc. caused by complete reliance on manual naked eye judgment and manual operation in the existing technology of small square billet continuous casting delivery link, through the roller way part conveying casting blank, the steel billet is pushed to the cooling bed part in the steel pushing part, and the first detection device and second detection device are used to monitor the steel billet conveying position and the steel pushing state respectively, the control unit receives the detection signal and controls the roller way start and stop intelligently, counts the steel billet in place simultaneously, and automatically triggers the steel pushing operation when reaching the preset quantity, realizes the full process automation delivery, effectively improves the operation precision and efficiency. The utility model has good application prospect and popularization value in the field of steel metallurgy continuous casting automation technology.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, specifically to an automatic billet unloading system for continuous casting of small square billets. Background Technology

[0002] In the field of continuous casting steelmaking, billet output from small billets is a crucial process connecting billet cutting with subsequent collection and transfer. However, this process currently relies heavily on manual operation, leading to numerous technical bottlenecks. Taking a typical continuous casting production line as an example, although the billets are automatically transported to the turning machine after fire cutting, the subsequent processes are entirely controlled manually: operators must visually determine the stopping position of each billet on the roller conveyor and manually control the conveying process; the turning machine lacks lifting position detection capabilities, requiring emergency manual intervention in case of occasional lifting failures; and the pushing operation also relies entirely on experience to determine the quantity and timing of pushing. This traditional model has significant drawbacks: First, the efficiency, proficiency, and sense of responsibility of personnel directly affect billet output stability, and delays and negligence in manual operation lead to uncontrollable production rhythms; second, the roller conveyor motors, lacking material sensing capabilities, run idle for extended periods, wasting energy and accelerating wear on mechanical parts; third, manual operation easily causes billet collisions and scratches, increasing product quality risks and safety hazards; finally, the low efficiency of multi-process collaboration makes it difficult to match the efficient continuous casting rhythm, becoming a production bottleneck. Existing basic timer or limit switch control schemes lack real-time sensing and intelligent decision-making capabilities, making them unable to adapt to changing working conditions and failing to fundamentally solve the above problems. Utility Model Content

[0003] To address the comprehensive problems in existing technologies where the billet unloading process in small square billet continuous casting relies entirely on manual judgment and operation, resulting in low operational efficiency, significant energy waste from equipment idling, abnormal wear of mechanical parts, and high production safety and quality risks, this utility model provides an automatic billet unloading system for small square billet continuous casting, comprising:

[0004] The roller conveyor section is used to transport steel billets cut by the continuous casting machine;

[0005] The steel pushing section is located at the end of the roller conveyor section and is used to push multiple steel billets that have been gathered away from the roller conveyor.

[0006] The cooling bed section is used to receive and accommodate the steel billets pushed in by the steel pushing section;

[0007] The first detection device is installed at the roller conveyor section to detect the conveying position of the steel billet and generate a first position signal.

[0008] The second detection device is installed at the steel pushing section to detect whether the steel billet has reached the pre-pushing position and generate a second position signal.

[0009] The control unit is electrically connected to the roller conveyor section, the steel pushing section, the first detection device, and the second detection device, respectively.

[0010] The control unit is configured to receive the first position signal and the second position signal, control the start and stop of the roller conveyor section according to the first position signal, count the steel billets that have reached the pre-push position according to the second position signal, and when the count reaches a preset number, control the push section to perform a push action to push the steel billets to the cooling bed section.

[0011] Furthermore, the first detection device is a laser rangefinder installed at the end of the billet exit roller conveyor after the fire cutting machine, used to detect whether the billet has passed through and left the section of the roller conveyor; the second detection device is a laser rangefinder installed below the steel turning machine, used to detect whether the billet has reached the pre-turning position, and each device is set up independently for each batch.

[0012] Furthermore, the steel pushing section includes a steel turning machine and a steel pushing machine, wherein the steel turning machine is used to turn the horizontally laid billet conveyed by the roller conveyor into an upright position, and the steel pushing machine is used to push the grouped upright billets arranged by the steel turning machine laterally to the cooling bed area.

[0013] Furthermore, the control unit is an automatic control PLC system, which is connected to the original control system of the continuous casting machine to acquire production parameters and realize automatic control and interlocking alarm functions for the roller conveyor, steel turning, steel pushing and cooling bed.

[0014] The beneficial effects of this utility model are:

[0015] This invention enables fully automated steel output without human intervention throughout the entire process. The system operates unmanned from billet drawing to cooling bed. At the same time, the roller conveyor motor intelligently starts and stops based on the presence or absence of steel billets, greatly saving energy.

[0016] After the automatic billet output system is adopted, the connection between each process relies on logical interlocking. If any abnormality occurs, an alarm can be triggered in time and the interlocking action can be activated. This can promptly prompt relevant personnel to handle the situation and also prevent equipment damage accidents. Attached Figure Description

[0017] Figure 1 This is a system structure diagram of the present invention.

[0018] Among them, 1 is the roller conveyor section, 2 is the cooling bed section, 3 is the steel pushing section, 4 is the steel turning machine, and 5 is the steel pushing machine. Detailed Implementation

[0019] To make the technical solutions and advantages of the embodiments of this utility model clearer, the exemplary embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] Example 1, combined with Figure 1 This embodiment describes an automatic billet unloading system for continuous casting of small square billets, comprising:

[0021] Roller conveyor section 1 is used to transport steel billets cut by the continuous casting machine;

[0022] The steel pushing section 3 is located at the end of the roller conveyor section 1 and is used to push multiple steel billets that have been gathered away from the roller conveyor.

[0023] Cooling bed section 2 is used to receive and accommodate steel billets pushed by the steel pushing section 3;

[0024] The first detection device is installed at the roller conveyor section 1 to detect the conveying position of the steel billet and generate a first position signal.

[0025] The second detection device is installed at the steel pushing part 3 to detect whether the steel billet has reached the pre-pushing position and generate a second position signal;

[0026] The control unit is electrically connected to the roller conveyor section 1, the steel pushing section 3, the first detection device, and the second detection device, respectively.

[0027] The control unit is used to receive the first position signal and the second position signal, and control the start and stop of the roller conveyor section 1 according to the first position signal, count the steel billets that have reached the pre-push position according to the second position signal, and when the count reaches a preset number, control the push section 3 to perform the push action to push the steel billets to the cooling bed section 2.

[0028] The automatic billet unloading system for continuous casting of small square billets described in this embodiment uses a mechanical combination of roller conveyor section 1, steel pushing section 3, and cooling bed section 2. Combined with first and second detection devices deployed at key locations, it monitors the billet conveying position and pre-pushing status in real time and generates position signals. The control unit receives and processes these signals in real time. On the one hand, it intelligently controls the start and stop of roller conveyor section 1 to optimize conveying efficiency and energy consumption. On the other hand, it accurately counts the billets that arrive at the pre-pushing position and automatically triggers the steel pushing section 3 to perform the pushing action after reaching a preset number. Finally, it accurately pushes the group of billets to the cooling bed section 2, thereby realizing automated and precise control of the entire process from billet conveying, positioning, counting to pushing. This completely replaces the traditional manual operation mode and significantly improves the reliability, efficiency, and safety of billet unloading operations.

[0029] The first detection device is a laser rangefinder installed at the end of the billet exit roller conveyor after the fire cutting machine, used to detect whether the billet has passed through and left the section of the roller conveyor; the second detection device is a laser rangefinder installed below the steel turning machine 4, used to detect whether the billet has reached the pre-turning position, and each device is set up independently for each batch.

[0030] The steel pushing section 3 includes a steel turning machine 4 and a steel pushing machine 5. The steel turning machine 4 is used to turn the flat-lying billet conveyed by the roller conveyor into an upright position, and the steel pushing machine 5 is used to push the grouped upright billets arranged by the steel turning machine 4 laterally to the cooling bed area.

[0031] The control unit is an automatic control PLC system. This PLC system communicates with the original control system of the continuous casting machine to acquire production parameters and realize automatic control and interlocking alarm functions for the roller conveyor, steel turning, steel pushing and cooling bed.

[0032] The main improvements of this utility model are as follows: At the equipment level, multiple sets of laser ranging devices are deployed at the end of the roller conveyor after the fire cutting machine and at key workstations above and below the steel turning machine 4. Through real-time distance monitoring and signal interlock control, the steel billet is accurately positioned and protected against collision. At the control level, an independent PLC control system is added to communicate with the continuous casting host, integrating the automatic control and interlock alarm of the entire process of roller conveyor, steel turning, steel pushing and cooling bed, and equipped with an HMI human-machine interface to support remote or local dual-mode switching and parameter setting. At the execution level, the laser positioning device on the track side of the steel pushing machine 5 realizes intelligent control of the steel pushing stroke, so that the system can adaptively select the starting point of operation according to the set number of steel billets. This system not only reserves interfaces for integration with MES and visual recognition systems, laying the foundation for future intelligent upgrades, but also brings significant economic benefits. Specifically, the total annual spare parts consumption cost is approximately 140,000 yuan. By reducing equipment idling and wear, spare parts consumption is expected to decrease by 30%, generating an annual saving of approximately 42,000 yuan. In terms of energy, by replacing the original time control method and eliminating the waste caused by roller conveyor idling due to short-length steel billets, an estimated 30% saving, or approximately 39,000 yuan, is expected out of the annual electricity expenditure of approximately 118,000 yuan. In summary, the project's total annual savings can reach 80,000 yuan, with a reasonable investment payback period and good economic and technical feasibility.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic billet unloading system for continuous casting of small square billets, characterized in that, include: The roller conveyor section is used to transport steel billets cut by the continuous casting machine; The steel pushing section is located at the end of the roller conveyor section and is used to push multiple steel billets that have been gathered away from the roller conveyor. The cooling bed section is used to receive and accommodate the steel billets pushed in by the steel pushing section; The first detection device is installed at the roller conveyor section to detect the conveying position of the steel billet and generate a first position signal. The second detection device is installed at the steel pushing section to detect whether the steel billet has reached the pre-pushing position and generate a second position signal. The control unit is electrically connected to the roller conveyor section, the steel pushing section, the first detection device, and the second detection device, respectively. The control unit is configured to receive the first position signal and the second position signal, control the start and stop of the roller conveyor section according to the first position signal, count the steel billets that have reached the pre-push position according to the second position signal, and when the count reaches a preset number, control the push section to perform a push action to push the steel billets to the cooling bed section.

2. The automatic billet unloading system for continuous casting of small square billets according to claim 1, characterized in that, The first detection device is a laser rangefinder installed at the end of the billet exit roller conveyor after the fire cutting machine, used to detect whether the billet has passed through and left the section of the roller conveyor; the second detection device is a laser rangefinder installed below the steel turning machine, used to detect whether the billet has reached the pre-turning position, and each device is set up independently for each batch.

3. The automatic billet unloading system for continuous casting of small square billets according to claim 1, characterized in that, The steel pushing section includes a steel turning machine and a steel pushing machine. The steel turning machine is used to turn the horizontally laid-out billets conveyed by the roller conveyor into an upright position, and the steel pushing machine is used to push the grouped upright billets arranged by the steel turning machine laterally to the cooling bed area.

4. The automatic billet unloading system for continuous casting of small square billets according to claim 1, characterized in that, The control unit is an automatic control PLC system. This PLC system communicates with the original control system of the continuous casting machine to acquire production parameters and realize automatic control and interlocking alarm functions for the roller conveyor, steel turning, steel pushing and cooling bed.

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