High-temperature steel billet robot laser identification system

Abstract

The utility model provides a high-temperature steel billet robot laser marking system, which relates to the field of steel hot rolling and comprises a conveying roller way, a laser marking device, a laser marking device and a laser marking device. The blank pushing machine is positioned on one side of the conveying roller way; the discharging rack is located on the other side of the conveying roller way. The laser marking mechanism can carry out laser marking on the steel billets located in the bearing area of the discharging rack; according to the configuration of the high-temperature steel billet robot laser marking system, the conveying roller way is provided with a first position, when the tail of a steel billet is conveyed to the first position, the speed of the conveying roller way is reduced to zero, and the steel billet is located in an operation area of the billet pushing machine. And the safety risk caused by frequent manual operation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hot rolling of steel, and in particular to a high-temperature steel billet robot laser marking system. Background Technology

[0002] According to the process management requirements of the hot rolling production line of steel, after the steel billet is cut and segmented in the initial rolling, each high-temperature steel billet needs to be identified online (such as the furnace number) before being transferred to the next annealing or reheating process.

[0003] Currently, the marking is done manually. First, the initials are sorted according to requirements and placed into a letterbox. During marking, the operator stands next to the red-hot steel billet, places the initials from the letterbox onto the end face of the high-temperature steel billet, and then strikes the letterbox with a hammer, thus engraving the characters onto the end face of the high-temperature steel billet. The temperature of the high-temperature steel billet reaches over 1000 degrees Celsius. Typing and marking is a typical 3D job, posing significant safety risks. Changing the initials is also tedious and carries the risk of incorrect initials being placed. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature steel billet robotic laser marking system to solve the safety risks caused by frequent manual operation in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature steel billet robot laser marking system, comprising: a conveyor roller conveyor, located downstream of the post-shear conveyor roller conveyor in the process, capable of conveying steel billets; a billet pusher, located on one side of the conveyor roller conveyor, having an operating area, the operating area covering a portion of the conveying area formed by the conveyor roller conveyor, the advancing direction within the operating area being perpendicular to the conveying direction of the conveyor roller conveyor; a blanking platform, located on the other side of the conveyor roller conveyor, having a receiving area, the receiving area being used to receive steel billets pushed away from the conveyor roller conveyor by the billet pusher; and a laser marking mechanism, located on the other side of the conveyor roller conveyor, the laser marking mechanism being capable of laser marking the steel billets located in the receiving area of ​​the blanking platform; the high-temperature steel billet robot laser marking system is configured such that: the conveyor roller conveyor has a first position, when the tail of the steel billet is conveyed to the first position, the speed of the conveyor roller conveyor drops to 0, and the steel billet is located within the operating area of ​​the billet pusher.

[0006] Furthermore, a stop detection sensor is configured at the first position, and the stop detection sensor is a hot metal detector sensor.

[0007] Furthermore, the stop detection sensor is model HMD530-SL.

[0008] Furthermore, the conveyor rollers also have a second position, and the second position, the first position, and the billet pusher are arranged sequentially along the conveying direction of the conveyor rollers. When the tail of the billet is conveyed to the second position, the speed of the conveyor rollers drops to greater than 0 and less than the initial speed of the conveyor rollers.

[0009] Furthermore, a deceleration detection sensor, which is a hot metal detector, is disposed at the second position.

[0010] Furthermore, the deceleration detection sensor is model HMD530-SL.

[0011] Furthermore, the laser marking mechanism includes an industrial robot and a laser marking head. The laser marking head is located at the end of the robotic arm of the industrial robot. The laser marking head can laser mark the steel billet, and the robotic arm of the industrial robot can drive the laser marking head to move. The unloading platform is configured such that the receiving area has a third position, and when the steel billet is in the third position, the laser emission direction of the laser marking head is perpendicular to the tail end face of the steel billet.

[0012] Furthermore, the laser marking mechanism is configured such that when the receiving area receives the steel billet, the industrial robot makes the laser emission direction of the laser marking head perpendicular to the tail end face of the steel billet.

[0013] Analysis reveals that this utility model discloses a high-temperature steel billet robot laser marking system, configured as follows: a conveyor roller conveyor, located downstream of the post-shear conveyor roller conveyor, capable of conveying steel billets; a billet pusher, located on one side of the conveyor roller conveyor, having an operating area covering part of the conveying area formed by the conveyor roller conveyor, with the pushing direction within the operating area perpendicular to the conveying direction of the conveyor roller conveyor; a unloading platform, located on the other side of the conveyor roller conveyor, having a receiving area for receiving steel billets pushed away from the conveyor roller conveyor by the billet pusher; and a laser marking mechanism, located on the other side of the conveyor roller conveyor, capable of laser marking the steel billets located in the receiving area of ​​the unloading platform. The high-temperature steel billet robot laser marking system is configured such that: the conveyor roller conveyor has a first position; when the tail of the steel billet is conveyed to the first position, the speed of the conveyor roller conveyor drops to 0, and the steel billet is located within the operating area of ​​the billet pusher, thus realizing laser marking of the steel billet using the laser marking mechanism, reducing the safety risks caused by frequent manual operation. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0015] Figure 1 A schematic diagram of the structure of a high-temperature steel billet robot laser marking system according to an embodiment of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Conveyor roller; 2. Billet pusher; 3. Deceleration detection sensor; 4. Stop detection sensor; 5. Unloading table; 6. Industrial robot; 7. Laser marking head; 8. Rangefinder; 9. Steel billet. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, modifications and variations can be made to the present invention by those skilled in the art without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention include such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0018] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0019] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” “third,” and “fourth,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of a single component.

[0020] Specifically, during the production process, the steel billet is first heated to about 1250 degrees Celsius in a heating furnace. The steel tapping mechanism extends into the heating furnace to lift out the high-temperature steel billet and places it on the tapping roller conveyor. The tapping roller conveyor rotates and sends the steel billet to the billet mill. After multiple reciprocating rolling processes by the billet mill, the cross-section of the steel billet becomes smaller and the length becomes longer. The steel billet is then sent to the shearing machine via the rear roller conveyor, intermediate roller conveyor, and pre-shear roller conveyor (or pre-shear conveyor roller conveyor). After being cut into sections by the shearing machine, the steel billet is conveyed to the transfer roller conveyor via the post-shear roller conveyor (or post-shear conveyor roller conveyor).

[0021] like Figure 1 As shown, according to an embodiment of the present invention, a high-temperature steel billet robotic laser marking system is provided, comprising:

[0022] The conveyor roller conveyor, located downstream of the post-shear conveyor roller conveyor in the process, is used to transport steel billets.

[0023] Understandably, the conveyor rollers can transport steel billets at a set speed, and the length direction of the steel billet is the same as the conveying direction of the conveyor rollers.

[0024] The pusher is located on one side of the conveyor roller table and has an operating area that covers part of the conveying area formed by the conveyor roller table. The pushing direction within the operating area is perpendicular to the conveying direction of the conveyor roller table.

[0025] The unloading platform, located on the other side of the conveyor roller table, has a receiving area for receiving steel billets pushed away from the conveyor roller table by the billet pusher.

[0026] The high-temperature billet robot laser marking system is configured as follows: the conveyor roller has a first position, and when the tail of the billet is conveyed to the first position, the speed of the conveyor roller drops to 0. The billet is located in the operating area of ​​the billet pusher so that the billet pusher can push the billet in a direction perpendicular to the length direction of the billet.

[0027] Specifically, a stop detection sensor is configured at the first position, and the conveyor roller also has a second position. The second position, the first position, and the billet pusher are arranged sequentially along the conveying direction of the conveyor roller. When the tail of the billet is conveyed to the second position, the speed of the conveyor roller drops to greater than 0 and less than the initial speed of the conveyor roller. A deceleration detection sensor is configured at the second position.

[0028] Specifically, the deceleration detection sensor and the stop detection sensor enable the automatic and precise positioning of the billet on the roller conveyor. During operation, the billet is conveyed forward through the roller conveyor. When the deceleration detection sensor detects the tail end face of the billet, it reduces the speed setpoint of the conveyor roller frequency converter, causing the billet to be conveyed at a low speed. When the stop detection sensor detects the tail end face of the billet, the roller frequency converter sets the speed to zero, and the billet stops immediately, meaning the billet has been conveyed to the correct position.

[0029] Specifically, after the detection sensor stops detecting the signal at the tail end of the billet, the billet pusher begins to push the billet forward toward the stand. The forward stroke is, for example, 1700mm. A proximity switch is set at the end of the billet pusher's stroke. When the proximity switch detects that the billet has moved to the correct position, the billet pusher stops moving forward and the billet stops at the target position to be marked. The billet pusher then moves backward back to the original position.

[0030] Specifically, both the deceleration detection sensor and the stop detection sensor are hot metal detectors. Due to the high temperature of the steel billet, the hot metal detector can accurately determine the position of the steel billet. The hot metal detector model can be HMD530-SL hot metal detector. The detection method of the deceleration detection sensor and the stop detection sensor is to continuously detect the front of the sensor. When the high temperature steel billet is continuously detected, if the detection signal of the high temperature steel billet is interrupted, it means that the sensor has detected the tail of the steel billet.

[0031] Specifically, the laser marking system also includes a frequency converter and a PLC controller. The frequency converter can control the running speed of the conveyor rollers, and the PLC controller can control the working status of the pusher.

[0032] The laser marking mechanism, located on the other side of the conveyor roller conveyor, is capable of laser marking the steel billets located in the receiving area of ​​the unloading table.

[0033] Specifically, the laser marking mechanism includes an industrial robot and a laser marking head. The laser marking head is located at the end of the robotic arm of the industrial robot. The laser marking head can mark steel billets with lasers, and the robotic arm of the industrial robot can drive the laser marking head to move.

[0034] The unloading platform is configured such that the receiving area has a third position, and when the billet is in the third position, the laser emission direction of the laser marking head is perpendicular to the tail end face of the billet. Specifically, the laser marking mechanism is configured such that when the receiving area receives the billet, the industrial robot makes the laser emission direction of the laser marking head perpendicular to the tail end face of the billet.

[0035] Specifically, the laser marking system also includes a rangefinder, which can detect the distance between the billet and the rangefinder to determine whether the billet is in the third position. If the billet is not in the third position, it is moved to the third position by means of a crane or other tools.

[0036] Specifically, the laser marking system also includes a host computer, which is connected to the laser marking mechanism. The host computer can control the laser marking mechanism, specifically by communicating with the robot and controlling the laser marking mechanism to mark the steel billet according to the characters set by the host computer.

[0037] Specifically, the distance between the billet end face to be marked and the rangefinder is detected. If the distance feedback is within the set range (3015mm ± 50mm), it can be confirmed that the billet has reached the third position, that is, the billet end face has been identified. The robotic arm of the industrial robot (ABB six-axis) moves the laser (usually 450W) to a position 500mm from the billet end face, marking the billet end face in a non-contact manner.

[0038] Specifically, the rangefinders mentioned above are usually laser rangefinders.

[0039] The specific usage of this system is as follows: The conveyor rollers are controlled by deceleration detection sensors and stop detection sensors to achieve automatic positioning of the tail end face of the billet; the billet pusher pushes the positioned billet to the unloading table; the rangefinder and the forward position detection signal of the billet pusher are combined for logical judgment; after the billet is determined to be in place, the robot is controlled to laser mark the end face of the billet. The laser works to realize the laser marking of characters on the end face of the billet. After the marking is completed, the robot drive arm returns to the original position.

[0040] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: This utility model realizes fully automatic laser marking, replacing manual close-range typing marking, making it convenient, simple and reliable to change the marking characters when the steel grade changes; at the same time, it saves the cost of character consumption.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-temperature steel billet robotic laser marking system, characterized in that, include: The conveyor roller conveyor is located downstream of the post-shear conveyor roller conveyor in the process and is used to transport steel billets; A pusher, located on one side of the conveyor roller table, has an operating area that covers a portion of the conveying area formed by the conveyor roller table, and the pushing direction within the operating area is perpendicular to the conveying direction of the conveyor roller table. The unloading platform, located on the other side of the conveyor roller table, has a receiving area for receiving steel billets pushed away from the conveyor roller table by the billet pusher. A laser marking mechanism is located on the other side of the conveyor roller conveyor. The laser marking mechanism is capable of laser marking the steel billet located in the receiving area of ​​the unloading table. The high-temperature billet robot laser marking system is configured such that: the conveyor roller has a first position; when the tail of the billet is conveyed to the first position, the speed of the conveyor roller is reduced to 0, and the billet is located within the operating area of ​​the billet pusher.

2. The high-temperature steel billet robot laser marking system according to claim 1, characterized in that, A stop detection sensor is provided at the first position, and the stop detection sensor is a hot metal detector sensor.

3. The high-temperature steel billet robot laser marking system according to claim 2, characterized in that, The stop detection sensor is model HMD530-SL.

4. The high-temperature steel billet robot laser marking system according to claim 2, characterized in that, The conveyor rollers also have a second position. The second position, the first position, and the billet pusher are arranged sequentially along the conveying direction of the conveyor rollers. When the tail of the billet is conveyed to the second position, the speed of the conveyor rollers drops to greater than 0 and less than the initial speed of the conveyor rollers.

5. The high-temperature steel billet robot laser marking system according to claim 4, characterized in that, A deceleration detection sensor, which is a hot metal detector, is configured at the second position.

6. The high-temperature steel billet robot laser marking system according to claim 5, characterized in that, The deceleration detection sensor is model HMD530-SL.

7. The high-temperature steel billet robot laser marking system according to claim 1, characterized in that, The laser marking mechanism includes an industrial robot and a laser marking head. The laser marking head is located at the end of the robotic arm of the industrial robot. The laser marking head can laser mark the steel billet, and the robotic arm of the industrial robot can drive the laser marking head to move. The unloading platform is configured such that the receiving area has a third position, and when the steel billet is in the third position, the laser emission direction of the laser marking head is perpendicular to the tail end face of the steel billet.

8. The high-temperature steel billet robot laser marking system according to claim 7, characterized in that, The laser marking mechanism is configured such that when the receiving area receives the steel billet, the industrial robot makes the laser emission direction of the laser marking head perpendicular to the tail end face of the steel billet.

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