A dummy bar storage centering device and a dummy bar storage centering method for a slab continuous caster

Abstract

The application provides a dummy bar storage centering device of a slab continuous casting machine and a dummy bar storage centering method, and relates to the technical field of steel smelting. The dummy bar storage centering device of the slab continuous casting machine comprises a roller way, a storage rack, a track and a dummy bar trolley. The roller way and the storage rack are arranged at intervals along a first direction. The track is arranged along the first direction and is located on one side of the roller way and the storage rack along a second direction. The second direction is perpendicular to the first direction. The dummy bar trolley is movably installed on the track along the track. The upper end of the dummy bar trolley is provided with a liftable supporting plate. The dummy bar storage centering device eliminates the safety hazard of dummy bar sliding out and improves the centering efficiency.

Description

Technical Field

[0001] This invention relates to the field of iron and steel smelting technology, and more specifically, to a device and method for storing and centering the dummy bar of a slab continuous casting machine. Background Technology

[0002] The dummy bar storage and alignment device is an important component of the slab continuous casting machine. After the dummy bar pulls the slab in the crystallizer of the continuous casting machine to the roller table, the dummy bar storage and alignment device realizes the storage operation of the dummy bar and the alignment operation when it is loaded again.

[0003] Currently, the ingot bar storage and centering device typically includes a ramp-type slide and a fixed stop. During storage, the ingot bar trolley needs to move the ingot bar from a lower position on the ramp-type slide to a higher position. During centering, the fixed stop limits the ingot bar to achieve passive centering. However, the ramp-type slide causes the ingot trolley to tilt as it moves, making it easy for the ingot bar to slide off, posing a safety hazard. Furthermore, the passive centering method often has a low success rate on the first attempt, requiring multiple transfers of the ingot bar, thus affecting centering efficiency. Summary of the Invention

[0004] The problem this invention addresses is how to eliminate the safety hazard of the spindle slippage and improve centering efficiency.

[0005] To address the aforementioned problems, the present invention provides a slab continuous casting machine ingot storage and centering device, comprising a roller conveyor, a storage rack, a track, and an ingot trolley. The roller conveyor and the storage rack are spaced apart along a first direction. The track extends along the first direction and is located on one side of the roller conveyor and the storage rack along a second direction, which is perpendicular to the first direction. The ingot trolley is movably mounted on the track, and the upper end of the ingot trolley is provided with a liftable support plate.

[0006] Compared with the prior art, the present invention provides a slab continuous casting machine dummy bar storage and centering device, which has, but is not limited to, the following technical effects:

[0007] In the slab continuous casting machine dummy bar storage and centering device provided by the present invention, the track extends along a first direction, that is, the length direction of the track extends along the first direction. Thus, the dummy bar trolley, which is moved and installed on the track, can switch between the roller conveyor and the storage rack. The support plate at the upper end of the dummy bar trolley can be raised and lowered to support or lower the dummy bar. Specifically, when the support plate rises, it can lift the dummy bar on the roller conveyor or the storage rack, and when the support plate falls, it can lower the dummy bar onto the roller conveyor or the storage rack. Therefore, when it is necessary to store the dummy bar on the roller conveyor, the dummy bar trolley can be moved to a position close to the roller conveyor, the support plate can be raised to support the dummy bar, and then the dummy bar trolley can be moved to a position close to the storage rack, the support plate can be lowered to allow the dummy bar to fall into the storage rack, thus completing the storage operation. When it is necessary to center the dummy bar that has just been placed on the roller conveyor, the support plate is first raised or lowered to an appropriate height, and then the dummy bar trolley is moved along the track to push the dummy bar on the roller conveyor, so that the center line of the dummy bar coincides with the center line of the roller conveyor, thus completing the centering operation. During the storage operation, the track is a horizontal track, and the dummy bar trolley will not tilt during its movement, which can prevent the dummy bar from slipping off the dummy bar and eliminate the safety hazard of the dummy bar slipping off the trolley. During the centering operation, an active centering method is used, which can push the dummy bar to complete the centering in one push according to the deviation between the center line of the dummy bar and the center line of the roller conveyor, avoiding multiple repeated transfers of the dummy bar and improving the centering efficiency.

[0008] Optionally, the trolley includes a trolley base plate and a lifting cylinder located at the upper end of the trolley base plate. The lifting cylinder is driven and connected to the support plate to drive the support plate to move up and down.

[0009] Optionally, the upper end of the trolley base plate is provided with a guide seat, and the guide seat is provided with guide holes extending vertically;

[0010] The lower end of the support plate is provided with a guide shaft that slides in conjunction with the guide hole.

[0011] Optionally, the guide seat and the guide shaft constitute a guide assembly, and multiple guide assemblies are provided, which are arranged sequentially along the circumference of the lifting cylinder.

[0012] Optionally, the lower end of the trolley is provided with wheels that roll in cooperation with the track;

[0013] The slab continuous casting machine's dummy bar storage and centering device also includes a hydraulic motor, which is driven and connected to the wheel to drive the wheel to rotate around its own axis so that the dummy bar trolley moves along the track.

[0014] Optionally, the hydraulic motor is equipped with an encoder for detecting the angular displacement of the hydraulic motor output shaft.

[0015] The present invention also provides a method for storing and centering the dummy bar, based on the dummy bar storage and centering device of the slab continuous casting machine as described above. The method includes sequentially performing a dummy bar storage operation, a dummy bar lowering operation, and a dummy bar centering operation.

[0016] Compared with the prior art, the present invention provides a method for storing and aligning a derrick, which has, but is not limited to, the following technical effects:

[0017] The ingot guide rod storage and alignment method provided by this invention uses an ingot guide rod storage and alignment device to sequentially perform ingot guide rod storage, ingot guide rod lowering, and ingot guide rod alignment. Specifically, the ingot guide rod on the roller conveyor is first transferred to a storage rack. When the ingot guide rod is needed, it is then transferred from the storage rack to the roller conveyor. If the center line of the roller conveyor does not coincide with the center line of the ingot guide rod, the ingot guide rod can be aligned to the roller conveyor. The ingot guide rod storage and alignment device completes the storage, lowering, and alignment of the ingot guide rod, which can effectively prevent the ingot guide rod from slipping off the ingot guide trolley and improve alignment efficiency.

[0018] Optionally, the spindle storage operation includes:

[0019] The trolley is in the center position of the track, and the support plate is at the first height. The center position is the area on the track corresponding to the roller conveyor. When it is at the first height, the upper surface of the support plate is lower than the upper surface of the roller conveyor.

[0020] Push the guide rod on the roller conveyor so that the guide rod is above the support plate;

[0021] The support plate is raised by a lifting cylinder until the height of the support plate is a second height, so as to support the spindle rod on the roller conveyor. When it is at the second height, the upper end face of the support plate is higher than the upper end face of the roller conveyor.

[0022] The trolley is driven by a hydraulic motor to move along the track, so that the trolley is moved from the centering position to the storage position, wherein the storage position is the area on the track corresponding to the storage rack;

[0023] The lifting cylinder drives the support plate to descend until the height of the support plate is the first height, so that the guide rod on the support plate falls to the storage rack.

[0024] Optionally, the lowering operation of the derrick includes:

[0025] The lifting cylinder drives the support plate to rise until the height of the support plate is the second height, so as to support the ingot rod on the storage rack;

[0026] The hydraulic motor drives the trolley to move along the track, so that the trolley is moved from the storage position to the centering position;

[0027] The lifting cylinder drives the support plate to descend until the height of the support plate is the first height, so that the siphon rod on the support plate falls onto the roller conveyor.

[0028] Optionally, the spindle alignment operation includes:

[0029] Determine whether the centerline of the siphon rod coincides with the centerline of the roller conveyor;

[0030] When the centerline of the siphon bar does not coincide with the centerline of the roller conveyor;

[0031] The hydraulic motor drives the trolley to move along the track, so that the trolley is displaced from the centering position to the parking position, wherein, when in the parking position, the horizontal projection of the support plate is separated from the horizontal projection of the trolley rod.

[0032] The lifting cylinder drives the support plate to rise until the height of the support plate is the third height, wherein, at the third height, the upper end surface of the support plate is higher than the upper end surface of the roller conveyor and lower than the upper end of the dummy bar.

[0033] The hydraulic motor drives the trolley to move from the parking position toward the centering position, so that the support plate can push the trolley rod to move in the first direction until the center line of the trolley rod coincides with the center line of the roller conveyor. Attached Figure Description

[0034] Figure 1 This is a top view of the slab continuous casting machine's dummy bar storage and centering device according to an embodiment of the present invention;

[0035] Figure 2 This is a rear view of the track and the trolley in an embodiment of the present invention;

[0036] Figure 3 This is a left view of the track and the trolley in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the track and the trolley in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the process for storing the derrick in the derrick storage and alignment method according to an embodiment of the present invention;

[0039] Figure 6This is a schematic diagram of the process of lowering the derrick in the derrick storage and centering method according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the aligning operation of the derrick in the derrick storage and aligning method of this invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1-Roller conveyor, 2-Storage rack, 3-Railway, 4-Ingot trolley, 41-Trolley base plate, 42-Lifting cylinder, 43-Guide seat, 44-Wheel, 5-Support plate, 51-Guide shaft, 6-Hydraulic motor, 7-Center position, 8-Storage position. Detailed Implementation

[0043] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] In the description of this invention, it should be understood that if the terms "upper", "lower", "front", "rear", "left", and "right" are used, they indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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.

[0045] Furthermore, in the description of this invention, the X-axis in the accompanying drawings represents the horizontal direction and is designated as the front-to-back position, with the positive direction of the X-axis representing the front and the negative direction representing the rear; the Y-axis in the accompanying drawings represents the horizontal direction and is designated as the left-to-right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right; the Z-axis in the accompanying drawings represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis representing the top and the negative direction representing the bottom. It should be noted that the aforementioned representations of the X, Y, and Z axes are merely for the convenience of describing this invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0046] Please refer to Figure 1 This invention provides a slab continuous casting machine ingot storage and centering device, including a roller conveyor 1, a storage rack 2, a track 3, and an ingot trolley 4. The roller conveyor 1 and the storage rack 2 are spaced apart along a first direction. The track 3 extends along the first direction and is located on one side of the roller conveyor 1 and the storage rack 2 along a second direction, which is perpendicular to the first direction. The ingot trolley 4 is movably mounted on the track 3. The upper end of the ingot trolley 4 is provided with a liftable support plate 5.

[0047] Specifically, the first direction is the Y-axis direction, and the second direction is the X-axis direction.

[0048] In this embodiment, the track 3 extends along the first direction, that is, the length direction of the track 3 extends along the first direction. This allows the trolley 4, which is movable and installed on the track 3, to switch between the roller conveyor 1 and the storage rack 2. The support plate 5 at the upper end of the trolley 4 can be raised and lowered to support or lower the trolley rod. Specifically, when the support plate 5 rises, it can lift the trolley rod on the roller conveyor 1 or the storage rack 2. When the support plate 5 falls, it can lower the trolley rod onto the roller conveyor 1 or the storage rack 2. Therefore, when it is necessary to store the ingot rod on the roller conveyor 1, the ingot trolley 4 can be moved to the position of the track 3 near the roller conveyor 1, and the support plate 5 can be raised to support the ingot rod. Then, the ingot trolley 4 can be moved to the position of the track 3 near the storage rack 2, and the support plate 5 can be lowered to let the ingot rod fall into the storage rack 2, thus realizing the storage operation of the ingot rod. When it is necessary to center the ingot rod that has just been placed on the roller conveyor 1, the support plate 5 is first raised and lowered to an appropriate height, and then the ingot trolley 4 is moved along the track 3 to push the ingot rod on the roller conveyor 1 so that the center line of the ingot rod coincides with the center line of the roller conveyor 1, thus realizing the centering operation of the ingot rod. During storage operations, the track 3 is a horizontal track, and the trolley 4 will not tilt during movement, which can prevent the trolley rod from sliding out of the trolley 4 and eliminate the safety hazard of the trolley rod sliding out. During centering operations, an active centering method is adopted, which can push the trolley rod to complete the centering in one go according to the deviation between the center line of the trolley rod and the center line of the roller table 1, avoiding repeated transfer of the trolley rod and improving the centering efficiency.

[0049] Alternatively, please refer to Figure 2 and Figure 3 The trolley 4 includes a trolley base plate 41 and a lifting cylinder 42 located on the upper end of the trolley base plate 41. The lifting cylinder 42 is driven and connected to the support plate 5 to drive the support plate 5 to move up and down.

[0050] Specifically, the lifting cylinder 42 is arranged vertically, with its cylinder body fixed to the upper end of the trolley base plate 41. The piston rod of the lifting cylinder 42 faces upward, and the lower end face of the support plate 5 is connected to the upper end of the piston rod of the lifting cylinder 42. It should be noted that the derrick storage and centering device may also include a hydraulic system. The lifting cylinder 42 is connected to the hydraulic system, and the valve body in the hydraulic system is controlled by a control device to control the movement of the lifting cylinder 42.

[0051] In this embodiment, the lifting cylinder 42 can drive the support plate 5 to rise and fall. The lifting cylinder 42 can provide stable support, so that the support plate 5 can support the spindle rod more stably.

[0052] Alternatively, please refer to Figure 2 and Figure 3 The upper end of the trolley base plate 41 is provided with a guide seat 43, and the guide seat 43 is provided with a guide hole extending vertically; the lower end of the support plate 5 is provided with a guide shaft 51 that slides with the guide hole.

[0053] In this embodiment, the combination of guide shaft 51 and guide seat 43 can guide the lifting and lowering of support plate 5. Specifically, when lifting cylinder 42 drives support plate 5 to lift and lower, guide shaft 51 will also slide along guide hole. The mutual cooperation of guide shaft 51 and guide hole can ensure that the movement of support plate 5 is always maintained in the up and down direction, avoid support plate 5 from swaying, and improve the lifting and lowering stability of support plate 5.

[0054] Alternatively, please refer to Figure 4 The guide seat 43 and the guide shaft 51 constitute a guide assembly. Multiple guide assemblies are provided, and the multiple guide assemblies are arranged sequentially along the circumference of the lifting cylinder 42.

[0055] Specifically, four guide components are provided, and the four guide components are located at the four corners of the lower end face of the support plate 5.

[0056] In this embodiment, the arrangement of multiple guide components along the circumference of the lifting cylinder 42 can further improve the lifting stability of the support plate 5.

[0057] Alternatively, please refer to Figure 2 and Figure 3 The lower end of the trolley 4 is provided with a wheel 44 that rolls with the track 3; the trolley rod storage and centering device of the slab continuous casting machine also includes a hydraulic motor 6, which is driven and connected to the wheel 44 to drive the wheel 44 to rotate around its own axis so that the trolley 4 moves along the track 3.

[0058] It should be noted that the derrick storage and centering device may also include a hydraulic system, with the hydraulic motor 6 connected to the hydraulic system. The valve body in the hydraulic system is controlled by a control device to control the action of the hydraulic motor 6.

[0059] In this embodiment, a hydraulic motor 6 is used, which facilitates hydraulic synchronous control and improves the positioning accuracy of the ingot trolley 4 during its movement. Furthermore, the hydraulic motor 6 can be infinitely speed-regulated, allowing the ingot trolley 4 to have multiple different moving speeds to meet the needs of different working conditions.

[0060] Optionally, the hydraulic motor 6 is equipped with an encoder, which is used to detect the angular displacement of the output shaft of the hydraulic motor 6.

[0061] In this embodiment, the encoder can detect the angular displacement of the output shaft of the hydraulic motor 6, and indirectly obtain the angular displacement of the wheel 44, which is beneficial for accurately grasping the real-time position of the traction trolley 4.

[0062] This invention also provides a method for storing and aligning a dummy bar, based on the dummy bar storage and alignment device of the slab continuous casting machine described above. The method includes sequentially performing a dummy bar storage operation, a dummy bar lowering operation, and a dummy bar alignment operation.

[0063] In this embodiment, a bar storage and alignment device is used to sequentially perform bar storage, bar lowering, and bar alignment operations. Specifically, the bar on roller conveyor 1 is first transferred to storage rack 2. When the bar is needed, it is transferred from storage rack 2 back to roller conveyor 1. If the center line of roller conveyor 1 does not coincide with the center line of bar, the bar can be aligned to roller conveyor 1. The bar storage and alignment device completes the storage, lowering, and alignment of the bar, effectively preventing the bar from slipping off the bar trolley 4 and improving alignment efficiency.

[0064] Alternatively, please refer to Figure 5 The operation of storing the derrick includes:

[0065] Step S11: The ingot trolley 4 is in the center position 7 of the track 3, and the support plate 5 is at the first height. The center position 7 is the area on the track 3 corresponding to the roller conveyor 1. When it is at the first height, the upper surface of the support plate 5 is lower than the upper surface of the roller conveyor 1.

[0066] It should be noted that the area on track 3 corresponding to roller 1 is the horizontally opposite position on track 3 to roller 1, that is, the area on track 3 located directly behind roller 1.

[0067] Step S12: Push the guide rod on the roller conveyor 1 so that the guide rod is above the support plate 5.

[0068] Step S13: The support plate 5 is driven to rise by the lifting cylinder 42 until the height of the support plate 5 is the second height, so as to support the spindle rod on the roller conveyor 1, wherein, when it is at the second height, the upper end surface of the support plate 5 is higher than the upper end surface of the roller conveyor 1.

[0069] Step S14: Drive the trolley 4 along the track 3 by the hydraulic motor 6 so that the trolley 4 moves from the centering position 7 to the storage position 8, wherein the storage position 8 is the area on the track 3 corresponding to the storage rack 2.

[0070] It should be noted that the area on track 3 corresponding to storage rack 2 is the horizontally opposite position on track 3 to storage rack 2, that is, the area on track 3 located directly behind storage rack 2.

[0071] Step S15: The lifting cylinder 42 drives the support plate 5 to descend until the height of the support plate 5 is the first height, so that the guide rod on the support plate 5 falls to the storage rack 2.

[0072] In this embodiment, the traction rod is first pushed above the support plate 5, then the support plate 5 is raised to lift the traction rod from the roller conveyor 1, thereby supporting the traction rod. Then the traction trolley 4 is moved to the storage position 8, and then the support plate 5 is lowered to place the traction rod into the storage rack 2, thus realizing the storage of the traction rod. In the above process, since the driving components controlling the movement of the traction trolley 4 and the support plate 5 are the hydraulic motor 6 and the lifting cylinder 42, respectively, both of which are hydraulic devices, they can be controlled by the hydraulic system, making the control more convenient and improving the automation of traction rod storage.

[0073] Alternatively, please refer to Figure 6 The lowering operation of the derrick includes:

[0074] Step S21: The lifting cylinder 42 drives the support plate 5 to rise until the height of the support plate 5 is the second height, so as to support the spindle rod on the storage rack 2.

[0075] Step S22: The hydraulic motor 6 drives the ingot trolley 4 to move along the track 3, so that the ingot trolley 4 moves from the storage position 8 to the centering position 7.

[0076] Step S23: The lifting cylinder 42 drives the support plate 5 to descend until the height of the support plate 5 is the first height, so that the guide rod on the support plate 5 falls to the roller table 1.

[0077] In this embodiment, the support plate 5 is first raised to lift the derrick from the storage rack 2, thereby supporting the derrick. Then, the derrick trolley 4 is moved to the centering position 7, and then the support plate 5 is lowered to place the derrick onto the roller conveyor 1, thus realizing the lowering of the derrick. In the above process, since the driving components controlling the movement of the derrick trolley 4 and the support plate 5 are the hydraulic motor 6 and the lifting cylinder 42, respectively, both of which are hydraulic devices, they can be controlled by the hydraulic system, making the control more convenient and improving the automation of the derrick lowering.

[0078] Alternatively, please refer to Figure 7 The spindle alignment operation includes:

[0079] Step S31: Determine whether the center line of the derrick coincides with the center line of the roller conveyor 1.

[0080] Step S32: When the center line of the derrick does not coincide with the center line of the roller conveyor 1.

[0081] It should be noted that when the center line of the siphon rod coincides with the center line of the roller conveyor 1, there is no need to perform the subsequent siphon rod centering step.

[0082] Step S33: The hydraulic motor 6 drives the trolley 4 to move along the track 3, so that the trolley 4 moves from the centering position 7 to the parking position, wherein, when in the parking position, the horizontal projection of the support plate 5 is separated from the horizontal projection of the trolley rod.

[0083] It should be noted that the parking position is the position on track 3. When the center line of the derrick is deflected to the left relative to the center line of roller conveyor 1, the parking position is the position on track 3 between the centering position 7 and the storage position 8. When the center line of the derrick is deflected to the right relative to the center line of roller conveyor 1, the parking position is on the side of the centering position 7 away from the storage position 8.

[0084] Step S34: The lifting cylinder 42 drives the support plate 5 to rise until the height of the support plate 5 is the third height, wherein, at the third height, the upper end surface of the support plate 5 is higher than the upper end surface of the roller conveyor 1 and lower than the upper end of the traction rod.

[0085] Step S35: The hydraulic motor 6 drives the trolley 4 to move from the parking position toward the centering position 7, so that the support plate 5 can push the trolley rod to move in the first direction until the center line of the trolley rod coincides with the center line of the roller conveyor 1.

[0086] In this embodiment, when it is determined that the center line of the traction rod does not coincide with the center line of the roller conveyor 1, the traction trolley 4 is first moved from the centering position 7 to the parking position, and then the height of the support plate 5 is adjusted to the third height. Then, the traction trolley 4 is moved to the centering position 7 to push the traction rod until the center line of the traction rod coincides with the center line of the roller conveyor 1, thus completing the centering of the traction rod. In the above process, since the driving components controlling the movement of the traction trolley 4 and the support plate 5 are the hydraulic motor 6 and the lifting cylinder 42, respectively, both of which are hydraulic devices, they can be controlled by the hydraulic system, making the control more convenient and improving the automation of traction rod centering.

[0087] In the description of this invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature.

[0088] Furthermore, in the description of this invention, the term "embodiment" refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation that is included in at least one embodiment or implementation of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0089] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A method for storing and centering a derrick, characterized in that, Based on the slab continuous casting machine, the slab continuous casting machine includes a roller conveyor (1), a storage rack (2), a track (3) and a slab trolley (4). The roller conveyor (1) and the storage rack (2) are spaced apart along a first direction. The track (3) extends along the first direction and is located on one side of the roller conveyor (1) and the storage rack (2) along a second direction. The second direction is perpendicular to the first direction. The slab trolley (4) is movably installed on the track (3) along the track (3). The upper end of the slab trolley (4) is provided with a liftable support plate (5). The method for storing and aligning the derrick includes sequentially performing the derrick storage operation, the derrick lowering operation, and the derrick alignment operation. The spindle alignment operation includes: Determine whether the center line of the derrick coincides with the center line of the roller table (1); When the centerline of the derrick does not coincide with the centerline of the roller table (1); The trolley (4) is driven by a hydraulic motor (6) to move along the track (3) so that the trolley (4) moves from the centering position (7) to the parking position, wherein, when in the parking position, the horizontal projection of the support plate (5) is separated from the horizontal projection of the trolley rod. The support plate (5) is driven to rise by the lifting cylinder (42) until the height of the support plate (5) is the third height. When it is at the third height, the upper end of the support plate (5) is higher than the upper end of the roller table (1) and lower than the upper end of the traction rod. The hydraulic motor (6) drives the trolley (4) to move from the parking position toward the centering position (7), so that the support plate (5) can push the trolley rod to move in the first direction until the center line of the trolley rod coincides with the center line of the roller table (1).

2. The method for storing and centering the derrick according to claim 1, characterized in that, The trolley (4) includes a trolley base plate (41) and a lifting cylinder (42) located on the upper end of the trolley base plate (41). The lifting cylinder (42) is connected to the support plate (5) and is used to drive the support plate (5) to lift.

3. The method for storing and centering the derrick according to claim 2, characterized in that, The upper end of the trolley base plate (41) is provided with a guide seat (43), and the guide seat (43) is provided with guide holes extending vertically. The lower end of the support plate (5) is provided with a guide shaft (51) that slides with the guide hole.

4. The method for storing and centering the derrick according to claim 3, characterized in that, The guide seat (43) and the guide shaft (51) constitute a guide assembly. Multiple guide assemblies are provided, and the multiple guide assemblies are arranged sequentially along the circumference of the lifting cylinder (42).

5. The method for storing and centering the derrick according to claim 1, characterized in that, The lower end of the trolley (4) is provided with wheels (44) that roll in cooperation with the track (3); The slab continuous casting machine's dummy bar storage and centering device also includes a hydraulic motor (6), which is connected to the wheel (44) to drive the wheel (44) to rotate around its own axis so that the dummy bar trolley (4) moves along the track (3).

6. The method for storing and centering the derrick according to claim 5, characterized in that, The hydraulic motor (6) is equipped with an encoder, which is used to detect the angular displacement of the output shaft of the hydraulic motor (6).

7. The method for storing and centering the derrick according to claim 1, characterized in that, The operation of storing the dredger rod includes: The trolley (4) is in the center position (7) of the track (3), and the support plate (5) is at the first height. The center position (7) is the area on the track (3) corresponding to the roller (1). When it is at the first height, the upper surface of the support plate (5) is lower than the upper surface of the roller (1). Push the siphon rod on the roller conveyor (1) so that the siphon rod is above the support plate (5); The support plate (5) is driven to rise by the lifting cylinder (42) until the height of the support plate (5) is the second height, so as to support the spindle rod on the roller table (1). When it is at the second height, the upper end face of the support plate (5) is higher than the upper end face of the roller table (1). The hydraulic motor (6) drives the trolley (4) to move along the track (3) so that the trolley (4) moves from the centering position (7) to the storage position (8), wherein the storage position (8) is the area on the track (3) corresponding to the storage rack (2); The lifting cylinder (42) drives the support plate (5) to descend until the height of the support plate (5) is the first height, so that the guide rod on the support plate (5) falls to the storage rack (2).

8. The method for storing and centering the derrick according to claim 7, characterized in that, The lowering operation of the derrick includes: The lifting cylinder (42) drives the support plate (5) to rise until the height of the support plate (5) is the second height, so as to support the ingot rod on the storage rack (2); The trolley (4) is driven by a hydraulic motor (6) to move along the track (3) so that the trolley (4) moves from the storage position (8) to the centering position (7); The lifting cylinder (42) drives the support plate (5) to descend until the height of the support plate (5) is the first height, so that the dummy bar on the support plate (5) falls to the roller table (1).

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