Multi-section steel billet continuous flipping straightening walking cooling bed device and its control method

Abstract

This invention discloses a walking beam cooling bed device and its control method for continuous flipping and straightening of steel billets with multiple cross-sectional dimensions. The device includes a fixed arm and a movable arm. Several proximity switches are arranged along the running trajectory of the movable arm. These proximity switches include a high-position proximity switch for the movable arm, a low-position proximity switch for the movable arm, a horizontal in-situ switch, a forward deceleration switch, and several stop switches. By improving the fixed arm, the movable arm, and the control method, this walking beam cooling bed device can achieve automatic continuous flipping and straightening of high-temperature continuously cast steel billets with multiple cross-sectional dimensions during production, thereby improving the shape quality of the steel billets and facilitating the production of the next process.

Description

Technical Field

[0001] This invention relates to the field of continuous casting billet production technology, specifically to a walking beam cooling bed device and its control method for achieving continuous tumbling and straightening of high-temperature continuous casting billets with multiple cross-sectional dimensions. Background Technology

[0002] Steel billets produced by continuous casting machines are typically transported and cooled via a cooling bed. However, due to the high temperature, the billets produced by continuous casting machines are prone to bending to varying degrees, requiring straightening. Ordinary continuous casting machines use walking beam cooling beds, which have a simple structure and cannot straighten high-temperature continuously cast billets, affecting the billet's shape quality and the normal production of subsequent processes, and even causing the billets to be scrapped. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a multi-section steel billet continuous flipping straightening walking cooling bed device and its control method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A multi-section steel billet continuous flipping straightening walking cooling bed device includes a fixed arm and a movable arm arranged parallel to the fixed arm. The fixed arm has continuous fixed arm teeth, and the movable arm has continuous movable arm teeth. The length of a single fixed arm tooth and a single movable arm tooth is the same. The fixed arm teeth are obtuse-angled, and the movable arm teeth are right-angled. One angle in the movable arm teeth is the same as one angle in the fixed arm teeth. Several proximity switches are provided along the running trajectory of the movable arm, including a movable arm high-position proximity switch, a movable arm low-position proximity switch, a horizontal home position switch, and a forward deceleration switch. The device includes a switch and several stop switches. The high-position proximity switch and the low-position proximity switch of the movable arm are installed in a vertically arranged first mounting plate. The horizontal home position switch, the forward deceleration switch, and several stop switches are sequentially installed in a horizontally arranged second mounting plate. The first mounting plate and the second mounting plate are respectively located close to the movable arm. The movable arm is also provided with a first metal baffle and a second metal baffle. The first metal baffle acts between the high-position proximity switch and the low-position proximity switch of the movable arm, and the second metal baffle acts between the horizontal home position switch, the forward deceleration switch, and the several stop switches.

[0006] This walking beam cooling bed device, through improvements to the fixed arm, movable arm, and their control methods, can achieve automatic and continuous flipping and straightening of high-temperature continuous casting steel billets of various cross-sectional sizes during the production process, thereby improving the shape quality of the steel billets and facilitating the production of the next process.

[0007] By improving the dimensions and angles of the fixed arm teeth and the movable arm teeth, the movable arm can lift the billet and drop it onto the fixed arm in a flipping motion, repeating this process. The billet's residual heat and weight are used to straighten it during the repeated flipping and falling. Moreover, this improvement in the teeth allows it to handle continuous flipping and straightening of billets of different sizes, expanding its applicability. It can also be used in conjunction with proximity switches to achieve automated operation control.

[0008] Several proximity switches are provided along the running trajectory of the movable arm, which can realize the position detection of the movable arm in low position, high position, horizontal original position, forward deceleration position, and multiple stop positions, so that the movable arm can accurately flip the steel billet on the preset path and enable the steel billet to move forward to the next tooth. That is to say, the movable arm moves cyclically within the preset movement trajectory, and the steel billet can be flipped and moved forward, and continuously straightened.

[0009] The proximity switches for detecting the lifting and lowering of the movable arm and the proximity switches for detecting the horizontal movement of the movable arm are respectively located in two mounting plates. They are interconnected but do not interfere with each other's movements and do not obstruct the path. The first metal baffle and the second metal baffle act on the first and second mounting plates respectively, and their orientations are different, allowing each to perform its specific function. The forward deceleration proximity switch allows the movable arm to decelerate and stop smoothly when approaching the stop position, facilitating the smooth landing of the billet on the fixed arm. Multiple stop proximity switches can be sequentially set to stop and billet landing positions according to the size of the billet cross-section, ensuring that billets of all sizes can achieve flipping, forward movement, and straightening in the same cycle.

[0010] Furthermore, it also includes an operating console, which is equipped with a multi-position selector switch. Each multi-position selector switch corresponds to a plurality of the stop position switches, and the signals of the multi-position selector switch and the plurality of proximity switches are respectively connected to the control system PLC.

[0011] The multi-position selector switch enables the selection of different billet cross-sections. Through the design of the automated control program, the movable arm can operate automatically, requiring only one person to operate and control it in the control room, which greatly reduces the difficulty and manpower required for billet straightening.

[0012] Furthermore, the first mounting plate is provided with a vertical mounting groove, and the movable arm high position proximity switch and the movable arm low position proximity switch are respectively installed in the vertical mounting groove. The distance between the movable arm high position proximity switch and the movable arm low position proximity switch is greater than the vertical height between the tooth peak of the fixed arm and the tooth valley when the movable arm is at its lowest point.

[0013] The vertical mounting slot has both installation and limiting functions. The high-position proximity switch and the low-position proximity switch of the movable arm can be adaptively fine-tuned within the vertical mounting slot. The distance between the two is greater than the height of the fixed arm, ensuring that the lifted billet can exceed the high point of the fixed arm tooth profile, thus providing space for falling and straightening.

[0014] Furthermore, the second mounting plate is provided with a horizontal mounting groove, and the horizontal home position switch, the forward deceleration position switch and a plurality of the stop position switches are sequentially and spaced apart in the horizontal mounting groove. The distance between the horizontal home position switch and the forward deceleration position switch is greater than the length of a single fixed arm tooth, and the distance between the horizontal home position switch and the last stop position switch is less than the length of two consecutive fixed arm teeth.

[0015] Furthermore, the fixed arm tooth profile has a horizontal angle of 15 degrees and another acute angle of 40 degrees along the direction of travel, the movable arm has a horizontal angle of 50 degrees and another acute angle of 40 degrees along the direction of travel, the length of a single fixed arm tooth profile and a single movable arm tooth profile is 370±10mm, and the distance between the movable arm high position proximity switch and the movable arm low position proximity switch is 335±10mm.

[0016] The fixed arm tooth profile and the movable arm tooth profile are set at this angle so that the depth of the fixed arm tooth profile is less than the depth of the movable arm tooth profile, and the length of the low slope slope of the fixed arm tooth profile is longer. This allows the low point of the movable arm to be lower than the low point of the fixed arm tooth profile at the starting position. The slope of the movable arm tooth profile is greater than the slope of the fixed arm tooth profile. In this way, when the movable arm moves upward and receives the billet, it can make the billet flip. Combined with the 90-degree angle setting, the billet can be flipped 90 degrees, that is, one side of the square billet flips to the adjacent side. This allows the billet to continuously flip and fall during the movement, which is conducive to the uniform straightening of the billet side by side.

[0017] Furthermore, the distance between the horizontal home position switch and the forward deceleration position switch is 450±10mm, the distance between the horizontal home position switch and the first stop position switch is 514±10mm, and the distance between adjacent stop position switches is 38 to 50mm.

[0018] Furthermore, the fixed arms and the movable arms are arranged in parallel intervals to support the billet along its length and straighten it along its entire length. The vertical distance between the tooth valley of the fixed arm and the tooth peak of the movable arm when it is at its lowest position is 50±10mm, and the maximum height of the fixed arm is lower than the maximum height of the movable arm.

[0019] Furthermore, the aforementioned stop switches include 150mm stop positions, 200mm stop positions, and 240mm stop positions, corresponding to billet cross-sectional dimensions of 150×150mm respectively. 2 200×200mm 2 and 240×240mm 2 .

[0020] Furthermore, the first mounting plate and the second mounting plate are respectively fixed to the ground foundation by brackets, and are installed independently of the movable arm, so they are not affected by the movement of the movable arm and the position monitoring accuracy is high; the first metal baffle and the second metal baffle are respectively welded and fixed to the outer wall of the movable arm, and the connection is simple and convenient.

[0021] A control method for a multi-section steel billet continuous tilting straightening and walking cooling bed device, the control method comprising the following steps:

[0022] (1) The movable arm returns to its original low horizontal position, and the billet falls onto the toothed surface of the fixed arm.

[0023] (2) The movable arm is raised to a high position, triggering the high position proximity switch of the movable arm to send a signal for the movable arm to move forward.

[0024] (3) The movable arm moves forward, and the corresponding translation distance is selected according to the cross-sectional dimensions of the steel billet;

[0025] If the end face size of the steel billet is 150×150mm 2 The movable arm moves to the forward deceleration position switch and triggers a command to decelerate the movable arm forward; when the movable arm advances to the 150-degree stop position switch, a command is issued to stop the forward movement.

[0026] If the end face size of the steel billet is 200×200mm 2 The movable arm moves to the 150 square stop switch and triggers a command to slow down the movable arm; when the movable arm reaches the 200 square stop switch, a command is issued to stop the movement.

[0027] If the end face size of the steel billet is 240×240mm 2 The movable arm moves to the 200 square stop switch and triggers a command to slow down the movable arm; when the movable arm reaches the 240 square stop switch, a command is issued and the arm stops moving forward.

[0028] (4) After receiving the stop forward command, the movable arm moves downward to the low position;

[0029] (5) The movable arm moves back from the low position to the horizontal original position. At this time, the billet moves from the first fixed arm tooth of the fixed arm to the second fixed arm tooth and flips 90 degrees.

[0030] Repeat steps (1) to (5), in which the billet continues to move forward and flip over on the fixed arm.

[0031] Compared with the prior art, the beneficial effects of the present invention are: 1. By improving the fixed arm, movable arm, and their control method, this walking beam cooling bed device can achieve automatic continuous tumbling and straightening of high-temperature continuous casting steel billets of various cross-sectional sizes during the production process, thereby improving the shape quality of the steel billets and facilitating the production of the next process; 2. By improving the size and angle of the teeth of the fixed arm and the movable arm, the movable arm can lift the steel billet and drop it onto the fixed arm in a tumbling posture, repeating this process. The residual heat and weight of the steel billet are used to complete the straightening during the repeated tumbling and falling process; moreover, this improvement in the teeth allows it to handle the continuous tumbling and straightening of steel billets of different sizes, improving... In addition to its applicable scope, it can also be used in conjunction with proximity switches to complete automated operation control; 3. The fixed arm tooth profile and the movable arm tooth profile, through this angle setting, allow the movable arm to flip the billet when it receives the billet during the upward movement from the starting position. Combined with the 90-degree included angle setting, the billet can be flipped 90 degrees, so that the billet can be continuously flipped and fallen during the movement, which is conducive to the uniform straightening of the billet side by side; 4. The multi-position selection switch can realize the function of selecting different billet cross sections. Through the design of the automated control program, the movable arm can run automatically, requiring only one person to operate and control it in the control room, greatly reducing the difficulty of billet straightening. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the arrangement of the fixed arm and movable arm of the multi-section steel billet continuous flipping straightening walking cooling bed device of the present invention;

[0033] Figure 2 This is a schematic diagram of the first mounting plate of the present invention and the proximity switch disposed above it;

[0034] Figure 3 This is a schematic diagram of the second mounting plate of the present invention and the proximity switch disposed above it;

[0035] Figure 4 This is a schematic diagram of the control flow of the multi-section steel billet continuous flipping straightening walking cooling bed device of the present invention;

[0036] Figure 5 This diagram illustrates the operating cycle of the movable arm of the cooling bed device of the present invention and the positional change of the high-temperature steel billet on the fixed arm. Figure 1 ;

[0037] Figure 6 This diagram illustrates the operating cycle of the movable arm of the cooling bed device of the present invention and the positional change of the high-temperature steel billet on the fixed arm. Figure 2 ;

[0038] Figure 7 This diagram illustrates the operating cycle of the movable arm of the cooling bed device of the present invention and the positional change of the high-temperature steel billet on the fixed arm. Figure 3 ;

[0039] Figure 8 This diagram illustrates the operating cycle of the movable arm of the cooling bed device of the present invention and the positional change of the high-temperature steel billet on the fixed arm. Figure 4 ;

[0040] Figure 9 This diagram illustrates the operating cycle of the movable arm of the cooling bed device of the present invention and the positional change of the high-temperature steel billet on the fixed arm. Figure 5 ;

[0041] Figure 10 This diagram illustrates the operating cycle of the movable arm of the cooling bed device of the present invention and the positional change of the high-temperature steel billet on the fixed arm. Figure 6 ;

[0042] In the diagram: 1. Movable arm; 101. Movable arm tooth profile; 2. Fixed arm; 201. Fixed arm tooth profile; 3. First mounting plate; 4. Vertical mounting slot; 5. Movable arm high-position proximity switch; 6. Movable arm low-position proximity switch; 7. First metal baffle; 8. Second mounting plate; 9. Horizontal mounting slot; 10. Horizontal home position switch; 11. Forward deceleration position switch; 12. 150 cubic meter stop position switch; 13. 200 cubic meter stop position switch; 14. 240 cubic meter stop position switch; 15. Second metal baffle; 16. Steel billet; 17. Steel billet A-side. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," 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 invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] like Figures 1-3 As shown, a multi-section steel billet continuous flipping straightening walking cooling bed device includes a fixed arm 2 and a movable arm 1 arranged parallel to the fixed arm 2. The fixed arm 2 has continuous fixed arm teeth 20, and the movable arm 1 has continuous movable arm teeth 101. The length of a single fixed arm tooth 201 and a single movable arm tooth 101 is the same. The fixed arm tooth 201 is an obtuse-angle tooth, and the movable arm tooth 101 is a right-angle tooth. One angle of the movable arm tooth 101 is the same as one angle of the fixed arm tooth 201. A plurality of proximity switches are provided along the running trajectory of the movable arm 1. The proximity switches include a movable arm high-position proximity switch 5, a movable arm low-position proximity switch 6, and a horizontal home position switch 10. The moving arm 1 is equipped with a forward deceleration switch 11 and several stop switches. The high-position proximity switch 5 and the low-position proximity switch 6 of the moving arm are installed in the vertically arranged first mounting plate 3. The horizontal home position switch 10, the forward deceleration switch 11 and several stop switches are sequentially installed in the horizontally arranged second mounting plate 8. The first mounting plate 3 and the second mounting plate 8 are respectively located close to the moving arm 1. The moving arm 1 is also provided with a first metal baffle 7 and a second metal baffle 15. The first metal baffle 7 acts between the high-position proximity switch 5 and the low-position proximity switch 6 of the moving arm, and the second metal baffle 15 acts between the horizontal home position switch 10, the forward deceleration switch 11 and several stop switches.

[0046] This stepping cooling bed device, through improvements to the fixed arm 2, the movable arm 1, and their control methods, can achieve automatic continuous flipping and straightening of high-temperature continuous casting steel billets of various cross-sectional sizes during the production process, thereby improving the shape quality of the steel billets and facilitating the production of the next process.

[0047] By improving the dimensions and angles of the fixed arm tooth profile 201 and the movable arm tooth profile 101, the movable arm 1 can lift the steel billet and drop it onto the fixed arm 2 in a flipped manner, repeating this process. The steel billet's residual heat and weight are used to straighten it during the repeated flipping and falling process. Moreover, this improvement in the tooth profile allows it to handle the continuous flipping and straightening of steel billets of different sizes, thus expanding its applicability. It can also be used in conjunction with proximity switches to achieve automated operation control.

[0048] Several proximity switches are provided along the running trajectory of the movable arm 1, which can realize the position detection of the movable arm 1 in low position, high position, horizontal original position, forward deceleration position, and multiple stop positions, so that the movable arm can accurately flip the billet on the preset path and enable the billet to move forward to the next tooth. That is to say, the movable arm moves cyclically within the preset movement trajectory, and the billet can be flipped and moved forward, and continuously straightened.

[0049] The proximity switches for detecting the height of the movable arm 1 and the proximity switches for detecting its horizontal movement are located on two separate mounting plates. They are interconnected but do not interfere with each other's movements and do not obstruct the path. The first metal baffle 7 and the second metal baffle 15 act on the first mounting plate 3 and the second mounting plate 8 respectively, with different orientations to ensure each performs its function. The forward deceleration switch 11 allows the movable arm 1 to decelerate and stop smoothly when approaching the stop position, facilitating the smooth landing of the billet on the fixed arm 2. Multiple stop switches can sequentially set the stop and billet landing positions according to the billet's cross-sectional size, ensuring that billets of all sizes can be flipped, moved forward, and straightened in the same cycle.

[0050] Furthermore, it also includes an operating console, which is equipped with a multi-position selector switch. Each multi-position selector switch corresponds to a plurality of the stop position switches, and the signals of the multi-position selector switch and the plurality of proximity switches are respectively connected to the control system PLC.

[0051] The movable arm is driven by several hydraulic cylinders to realize the lifting, lowering, forward and backward movement functions of the movable arm. The drive control unit of these hydraulic cylinders is also connected to the control system PLC.

[0052] The multi-position selector switch enables the selection of different billet cross-sections. Through the design of the automated control program, the movable arm can operate automatically, requiring only one person to operate and control it in the control room, which greatly reduces the difficulty and manpower required for billet straightening.

[0053] Furthermore, the first mounting plate 3 is provided with a vertical mounting groove 4, and the movable arm high position proximity switch 5 and the movable arm low position proximity switch 6 are respectively installed in the vertical mounting groove 4. The distance between the movable arm high position proximity switch 5 and the movable arm low position proximity switch 6 is greater than the vertical height between the tooth peak of the fixed arm 2 and the tooth valley when the movable arm 1 is at its lowest point.

[0054] The vertical mounting slot 4 has the functions of installation and limiting. The high position proximity switch of the movable arm and the low position proximity switch of the movable arm can be adaptively fine-tuned in the vertical mounting slot. The distance between the two is greater than the height of the fixed arm, ensuring that the lifted steel billet can exceed the high point of the tooth profile of the fixed arm, thus having space for falling and straightening.

[0055] Furthermore, the second mounting plate 8 is provided with a horizontal mounting groove 9, and the horizontal home position switch 10, the forward deceleration position switch 11 and a plurality of the stop position switches are sequentially and spaced apart in the horizontal mounting groove 9. The distance between the horizontal home position switch 10 and the forward deceleration position switch 11 is greater than the length of a single fixed arm tooth 201, and the distance between the horizontal home position switch 10 and the last stop position switch is less than the length of two consecutive fixed arm tooth 201s.

[0056] Similarly, the horizontal mounting groove 9 has the functions of installation and limiting. The horizontal home position switch 10, the forward deceleration position switch 11 and the several stop position switches can all be adaptively fine-tuned in the vertical mounting groove. By designing the spacing between the forward deceleration position switch 11 and the several stop position switches in relation to the tooth length, the billet can be flipped and moved forward on the continuous tooth profile.

[0057] Furthermore, the fixed arm tooth profile 201 has a horizontal included angle of 15 degrees and another acute angle of 40 degrees along the direction of travel, the movable arm tooth profile 101 has a horizontal included angle of 50 degrees and another acute angle of 40 degrees along the direction of travel, the length of a single fixed arm tooth profile 201 and a single movable arm tooth profile 101 is 370±10mm, and the distance between the movable arm high position proximity switch 5 and the movable arm low position proximity switch 6 is 335±10mm.

[0058] The fixed arm tooth 201 and the movable arm tooth 101 are set at such an angle that the depth of the fixed arm tooth 201 is less than the depth of the movable arm tooth 101, and the length of the low slope inclined surface of the fixed arm tooth 201 is longer. This allows the low point of the movable arm 1 at the starting position to be lower than the low point of the fixed arm tooth 201. The slope of the inclined side of the movable arm tooth 101 is greater than the slope of the fixed arm tooth 201. In this way, when the movable arm 1 moves upward, it can make the steel billet flip when receiving it. Combined with the setting of the 90-degree included angle, the steel billet can be flipped 90 degrees, that is, one side of the square steel billet flips to the adjacent side. This allows the steel billet to continuously flip and fall during the movement, which is conducive to the uniform straightening of the steel billet side by side.

[0059] Furthermore, the distance between the horizontal home position switch 10 and the forward deceleration switch 11 is 450±10mm, the distance between the horizontal home position switch 10 and the first stop switch (150 square stop switch 12) is 514±10mm, the distance between the horizontal home position switch 10 and the second stop switch (200 square stop switch 13) is 563±10mm, and the distance between the horizontal home position switch 10 and the third stop switch (240 square stop switch 14) is 601±10mm.

[0060] By limiting the angles and dimensions mentioned above, the billet can be straightened in the most reasonable flipping and forward position, reducing unnecessary lifting and displacement. For continuous flipping and straightening, energy consumption can be reduced and straightening efficiency and production speed can be improved while ensuring straightening quality.

[0061] Furthermore, the fixed arms 2 and the movable arms 1 are arranged in parallel intervals to support the billet along its length and straighten it along its entire length. The vertical distance between the tooth valley of the fixed arm 2 and the tooth peak of the movable arm 1 when it is at its lowest position is 50±10mm, and the maximum height of the fixed arm 2 is lower than the maximum height of the movable arm 1.

[0062] Furthermore, the plurality of stop switches include a 150 cubic meter stop switch 12, a 200 cubic meter stop switch 13, and a 240 cubic meter stop switch 14, with corresponding billet cross-sectional dimensions of 150×150mm, respectively. 2 200×200mm 2 and 240×240mm 2 .

[0063] Furthermore, the first mounting plate 3 and the second mounting plate 8 are respectively fixed to the ground foundation by brackets and installed independently of the movable arm 1, so as not to be affected by the movement of the movable arm and the position monitoring accuracy is high; the first metal baffle 7 and the second metal baffle 15 are respectively welded and fixed to the outer wall of the movable arm 1, and the connection is simple and convenient.

[0064] A control method for a multi-section steel billet continuous flipping straightening walking cooling bed device, combined with Figure 4 As shown, the control method includes the following steps:

[0065] (1) As Figure 5 As shown, the movable arm 1 is in the starting position, in a low horizontal position, and the billet 16 falls onto the fixed arm tooth 201. At this time, the fixed arm 2 supports the billet 16, and the billet A surface 17 of the billet faces upward. The low point of the movable arm tooth does not contact the billet.

[0066] (2) The movable arm 1 is raised to a high position, such as... Figure 6 As shown, during the lifting process, the billet 16 can be rotated 90 degrees on the movable arm 1, so that the A side 17 of the billet faces to the left; and trigger the high-position proximity switch of the movable arm to send a signal for the movable arm to move forward.

[0067] (3) Figure 7 As shown, the movable arm 1 moves forward, and the corresponding translation distance is selected according to the cross-sectional dimensions of the steel billet;

[0068] If the end face size of the steel billet is 150×150mm 2 The movable arm 1 moves to the forward deceleration position switch and triggers a command to decelerate the movable arm 1 forward; the movable arm 1 moves forward to the 150-degree stop position switch and issues a command to stop moving forward.

[0069] If the end face size of the steel billet is 200×200mm 2 The movable arm 1 moves to the 150 square stop switch and triggers a command to slow down the movable arm 1; when the movable arm 1 moves to the 200 square stop switch, a command is issued and the movable arm 1 stops moving.

[0070] If the end face size of the steel billet is 240×240mm 2 The movable arm 1 moves to the 200 square stop switch and triggers a command to slow down the movable arm 1; when the movable arm 1 moves to the 240 square stop switch, a command is issued and the movable arm 1 stops moving.

[0071] These stop positions are designed to allow the billet 16 to fall smoothly onto the long side of the toothed fixed plate with one side flipped over; moreover, for billets of different cross-sectional dimensions, the stop position switch at the front can also be used as a forward deceleration switch to decelerate it in a timely manner, without having to set the forward deceleration switch near each stop position; these switches are all photoelectric proximity switches, which are easy to install and use, and have high detection sensitivity and accuracy.

[0072] (4) Figure 8 As shown, after receiving a stop command, the movable arm 1 begins to move downwards to a lower position, as... Figure 9 As shown, during the descent, the billet 16 moves from the first fixed arm tooth to the second fixed arm tooth and rotates 90 degrees.

[0073] (5) Figure 10 As shown, the movable arm 1 retracts from the low position to its original horizontal position;

[0074] Repeat steps (1) to (5), and the billet 16 will continue to move forward on the fixed arm 2 and flip face by face to complete the straightening.

[0075] By accurately controlling the dimensions and grasping the timing, the above operations can be automated using an automated control program. The operation logic is simple and clear, and the billet correction operation can be continuously and stably completed during the billet movement and cooling process, which improves the overall production efficiency and facilitates the smooth progress of the next process.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous flipping and straightening walking cooling bed device for multi-section steel billets, comprising a fixed arm and a movable arm arranged parallel to the fixed arm, characterized in that, The fixed arm has continuous fixed arm teeth, and the movable arm has continuous movable arm teeth. The length of a single fixed arm tooth and a single movable arm tooth is the same. The fixed arm teeth are obtuse-angled, and the movable arm teeth are right-angled. One angle in the movable arm teeth is the same as one angle in the fixed arm teeth. Several proximity switches are provided along the running trajectory of the movable arm. These proximity switches include a movable arm high-position proximity switch, a movable arm low-position proximity switch, a horizontal home position switch, a forward deceleration position switch, and several stop position switches. The movable arm high-position proximity switches and the movable arm low-position proximity switches are installed in a vertically arranged first mounting plate. The horizontal in-situ switch, the forward deceleration switch, and a plurality of stop switches are sequentially installed in a horizontally arranged second mounting plate. The first mounting plate and the second mounting plate are respectively positioned close to the movable arm. The movable arm is also provided with a first metal baffle and a second metal baffle. The first metal baffle acts between the high-position proximity switch and the low-position proximity switch of the movable arm, and the second metal baffle acts between the horizontal in-situ switch, the forward deceleration switch, and the plurality of stop switches. The plurality of stop switches include 150mm, 200mm, and 240mm stop switches, corresponding to billet cross-sectional dimensions of 150×150mm. 2 200×200mm 2 and 240×240mm 2 ; The control method for the multi-section steel billet continuous flipping straightening walking cooling bed device includes the following steps: (1) The movable arm returns to its original low horizontal position, and the billet falls onto the toothed surface of the fixed arm; (2) The movable arm is raised to a high position, triggering the high position proximity switch of the movable arm and sending a signal for the movable arm to move forward; (3) The movable arm moves forward, and the corresponding translation distance is selected according to the cross-sectional dimensions of the billet; If the end face size of the steel billet is 150×150mm 2 The movable arm moves to the forward deceleration position switch and triggers a command to decelerate the movable arm forward; when the movable arm advances to the 150-degree stop position switch, a command is issued to stop the forward movement. If the end face size of the steel billet is 200×200mm 2 The movable arm moves to the 150 square stop switch and triggers a command to slow down the movable arm; when the movable arm reaches the 200 square stop switch, a command is issued to stop the movement. If the end face size of the steel billet is 240×240mm 2 The movable arm moves to the 200 square stop switch and triggers a command to slow down the movable arm; when the movable arm reaches the 240 square stop switch, a command is issued and the arm stops moving forward. (4) After receiving the stop forward command, the movable arm moves downward to the low position; (5) The movable arm moves back from the low position to the horizontal original position. At this time, the steel billet moves from the first fixed arm tooth of the fixed arm to the second fixed arm tooth and is rotated 90 degrees. Repeat steps (1) to (5), in which the billet continues to move forward and flip over on the fixed arm.

2. The multi-section steel billet continuous flipping straightening walking cooling bed device according to claim 1, characterized in that, It also includes an operating console, which is equipped with a multi-position selector switch. Each multi-position selector switch corresponds to a number of the stop position switches. The signals of the multi-position selector switch and the number of proximity switches are respectively connected to the control system PLC.

3. The multi-section steel billet continuous flipping straightening walking cooling bed device according to claim 1, characterized in that, The first mounting plate has a vertical mounting groove. The high-position proximity switch and the low-position proximity switch of the movable arm are respectively installed in the vertical mounting groove. The distance between the high-position proximity switch and the low-position proximity switch of the movable arm is greater than the vertical height between the tooth peak of the fixed arm and the tooth valley when the movable arm is at its lowest point.

4. The multi-section steel billet continuous flipping straightening walking cooling bed device according to claim 1, characterized in that, The second mounting plate is provided with a horizontal mounting groove. The horizontal home position switch, the forward deceleration position switch and a number of the stop position switches are installed sequentially and at intervals in the horizontal mounting groove. The distance between the horizontal home position switch and the forward deceleration position switch is greater than the length of a single fixed arm tooth, and the distance between the horizontal home position switch and the last stop position switch is less than the length of two consecutive fixed arm teeth.

5. The multi-section steel billet continuous flipping straightening walking cooling bed device according to claim 1, characterized in that, The fixed arm tooth profile has a horizontal angle of 15 degrees and another acute angle of 40 degrees along the direction of travel. The movable arm has a horizontal angle of 50 degrees and another acute angle of 40 degrees along the direction of travel. The length of a single fixed arm tooth profile and a single movable arm tooth profile is 370±10mm. The distance between the high-position proximity switch and the low-position proximity switch of the movable arm is 335±10mm.

6. The multi-section steel billet continuous flipping straightening walking cooling bed device according to claim 5, characterized in that, The distance between the horizontal home position switch and the forward deceleration position switch is 450±10mm, the distance between the horizontal home position switch and the first stop position switch is 514±10mm, and the distance between adjacent stop position switches is 38 to 50mm.

7. The multi-section steel billet continuous flipping straightening walking cooling bed device according to claim 1, characterized in that, The fixed arms and the movable arms are arranged in parallel intervals. The vertical distance between the tooth valley of the fixed arm and the tooth peak of the movable arm when it is at its lowest position is 50±10mm. The maximum height of the fixed arm is lower than the maximum height of the movable arm.

8. The multi-section steel billet continuous turning and straightening walking cooling bed device according to claim 1, characterized in that, The first mounting plate and the second mounting plate are respectively fixed to the ground foundation by brackets, and the first metal baffle and the second metal baffle are respectively welded and fixed to the outer wall of the movable arm.

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