Steel pushing device and billet discharging method capable of realizing billet grouping and billet separation

Abstract

The present invention discloses a steel pushing device and a billet discharging method capable of achieving billet grouping and billet separation. The device comprises a beam frame, a pusher trolley, a synchronous shaft, a hydraulic cylinder, a movement control mechanism, and a billet detection mechanism. Multiple beam frames are arranged in parallel, and the beam frames are provided with support rails and tracks. The pusher trolley is movably mounted on the tracks of each beam frame, and a plurality of rotatable pushers are distributed along the pusher trolley. The pushers can automatically return to a vertical state and be limited at the lower portion of the side facing the rear end of the beam frame. A connecting rod assembly is distributed along the synchronous shaft. The hydraulic cylinder can drive the synchronous shaft to rotate and drive all the pusher trolleys to move synchronously through the connecting rod assemblies. The movement control mechanism is used to control the movement direction and amount of the pusher trolley via the hydraulic cylinder. The billet detection mechanism is used to detect whether a billet is present at the rear end of the beam frame. The device satisfies the requirement of achieving both billet grouping and billet separation with a single device, saving equipment investment and requiring a small site size.

Description

Technical Field

[0001] The invention belongs to the field of continuous casting of steel metallurgy, and in particular relates to a steel pushing device and a billet discharging method capable of realizing billet grouping and billet separation. Background Art

[0002] On the continuous steel casting production line, the billet first passes through the crystallizer for primary cooling, then passes through the secondary cooling area for secondary cooling and solidification, then passes through the straightening machine area for straightening, and then enters the pre-cutting roller. After the liquid core of the billet is completely solidified, it passes through the flame cutting area for cutting, and then enters the post-cutting roller and the billet discharge roller.

[0003] After the billet enters the billet discharge roller, there are generally two ways to discharge the billet:

[0004] The first method of billet discharge is direct hot delivery, which can be divided into two cases: Case 1, if the hot delivery line is facing the billet discharge line of the continuous casting machine, direct hot delivery can be performed; Case 2, if the hot delivery line and the billet discharge line of the continuous casting machine are not on the same center line and are far apart, the billets of each stream need to be pushed in groups to the vicinity of the hot delivery line by a billet transfer car, and since hot delivery generally requires single billet discharge, a steel dividing device is required to divide the grouped billets into single billets and send them to the hot delivery line.

[0005] The second way to discharge the billets is to take them off the line directly: the temperature of the billets is generally very high before they come off the line. Before they come off the line, they need to be cooled and straightened individually on a turning cooling bed, and then the cooled and straightened billets are hoisted in groups. Therefore, the billets need to be grouped according to the capacity of the clamps.

[0006] As can be seen from the above, there is a need to group the ingots and also to separate them when they are cast. The current implementation method is to use two sets of devices to respectively realize the grouping and separation of the ingots, which requires high equipment investment and a large site scale. Summary of the Invention

[0007] The purpose of the present invention is to provide a steel pushing device that can realize the grouping and separation of ingots, as well as a billet-discharging method based on the above-mentioned device. The device can realize the two functions of grouping and separating ingots in one set of devices, saving equipment investment and having smaller site scale requirements.

[0008] The technical solution adopted in the present invention is:

[0009] A steel pushing device capable of realizing the grouping and separation of ingots, comprising a beam frame, a pusher trolley, a synchronous shaft, a hydraulic cylinder, a mobile control mechanism and an ingot detection mechanism; a plurality of beam frames are arranged in parallel, and a support rail and a track are provided on the beam frame, and the support rail is used to store the ingots transported from the head end of the inverted cooling bed or the ingot transfer car; the pusher trolley is movably arranged on the track of each beam frame, and a plurality of rotatable pushers are distributed along the pusher trolley, and the center of gravity of the pusher trolley is below the rotation point and can automatically return to a vertical state and is limited at the lower part of the side facing the tail end of the beam frame The upper part of the pusher claw facing the tail end of the beam in the vertical state can push the ingot, and the upper part of the side facing the head end of the beam will rotate backward to avoid the ingot when passing through the ingot, and the upper part is higher than the support rail; connecting rod assemblies are distributed along the synchronous shaft, and each connecting rod assembly is connected to each pusher claw trolley respectively; at least one hydraulic cylinder is used, which can drive the synchronous shaft to rotate and drive all the pusher claw trolleys to move synchronously through each connecting rod assembly; the movement control mechanism is used to control the movement direction and movement amount of the pusher claw trolley through the hydraulic cylinder; the ingot detection mechanism is used to detect whether there is a ingot at the tail end of the beam.

[0010] Preferably, the beam frame adopts a split structure on the left and right sides, in which a support rail is installed on the upper end of one side of the frame body, and the space between the two side frames is used to accommodate the pusher claw trolley and the connecting rod assembly. C-shaped grooves are set on the opposite surfaces of the two side frames, and the C-shaped grooves are used to accommodate and limit the walking wheels of the pusher claw trolley. Pads are installed on the inner top and bottom surfaces of the C-shaped grooves as tracks for the walking wheels.

[0011] Preferably, the pusher claw trolley includes a pusher claw trolley body, a pin shaft, a pusher claw, a limit shaft, a wheel axle, a traveling wheel and an external ear piece. The pusher claw trolley body is two steel plates. The pin shaft passes through the two steel plates and is fixedly connected. The pusher claw is located between the two steel plates and is rotatably installed through the pin shaft. The limit shaft is provided between the two steel plates and is used to limit the lower part of the side of the vertical pusher claw facing the tail end of the beam frame. The wheel axle passes through the two steel plates and is fixedly connected. The traveling wheels are installed on the wheel axle and are located on both sides of the pusher claw trolley body. The external ear piece is fixed between the two steel plates and extends out of the two steel plates for articulating the connecting rod assembly.

[0012] Preferably, the pin is fixed to the steel plate through a clamping plate, a clamping groove is provided on the outer circle of the pin, the clamping plate is inserted into the clamping groove and fits on the steel plate and is fixed with bolts.

[0013] Preferably, the traveling wheel includes a wheel with a flange, a rolling bearing, an end cover and an oil cup. The wheel is mounted on the wheel axle through the rolling bearing, the end cover is mounted on the shaft end of the wheel axle and limits the inner ring of the rolling bearing, and the oil cup is mounted on the end of the wheel and limits the outer ring of the rolling bearing.

[0014] Preferably, the connecting rod assembly includes a fixed arm and a movable arm, the fixed arm is fixed on the synchronous shaft, and the movable arm adopts a double-ear structure to be hinged to the fixed arm and the pusher claw trolley respectively.

[0015] Preferably, the hydraulic cylinder and the synchronization shaft are located below the plane formed by each beam frame, and the hydraulic cylinder is mounted on a hydraulic cylinder support, which is provided with a protective cover capable of covering the upper portion of the hydraulic cylinder.

[0016] Preferably, the movement control mechanism includes an encoder and a controller. The encoder is used to detect the rotation direction and rotation angle of the synchronous shaft. The controller is electrically connected to the hydraulic cylinder and the encoder respectively. The controller can receive feedback from the encoder and control the extension and retraction direction and amount of the hydraulic cylinder so that the claw trolley reaches the set movement direction and movement amount.

[0017] Preferably, the billet detection mechanism includes a laser rangefinder, the distance measurement path of the laser rangefinder is perpendicular to the tail end of each beam and is within the height range of the billet. When the distance measurement value of the laser rangefinder is within a certain threshold, the presence of the billet at the tail end of the beam is detected.

[0018] A billet discharging method, based on the above-mentioned steel pushing device capable of realizing billet grouping and billet separation:

[0019] When grouping the billets: turn over the cooling bed and place the billets one by one on the head end of the beam on the support rail. Each time a billet is placed, the mobile control mechanism controls the pusher trolley to move a short distance to the head end of the beam, so that the first pusher passes the newly placed billet, and then moves to the tail end of the beam to reset, so that the first pusher pushes the newly placed billet from the head end of the beam to the storage position behind the first pusher. This is repeated until the first group of billets is collected at the storage position behind the first pusher. The mobile control mechanism controls the pusher trolley to move a large distance to the tail end of the beam. After a certain distance, the first pusher claw pushes the first group of billets into the storage position behind the original second pusher claw, and then moves to the head end of the beam to reset, and then continues to collect the next group of billets at the storage position behind the first pusher claw. Every time a group of billets is collected, the mobile control mechanism moves the current group of billets backward to the storage position behind the next pusher claw, until the first group of billets reaches the storage position behind the last pusher claw, and then continues to collect the last group of billets at the storage position behind the first pusher claw, that is, a group of billets is stored in the storage position behind each pusher claw;

[0020] When the billet is separated: the billet transfer car pushes a group of billets to the head end of the beam on the support rail, and the mobile control mechanism controls the claw trolley to reciprocate and transfer the current group of billets to the next claw step by step, until the last claw receives the current group of billets, and then the mobile control mechanism controls the claw trolley to move slowly to the tail end of the beam, so that the last claw pushes the current group of billets to move slowly to the hot delivery roller, until the billet detection mechanism detects the presence of billets at the tail end of the beam, and the mobile control mechanism controls the claw trolley to continue to move one billet to the hot delivery roller. Width distance, since the support rail is higher than the hot delivery roller, the first billet will fall onto the hot delivery roller, and then the hot delivery roller drives the first billet forward to leave the current roller section, and then the mobile control mechanism controls the claw trolley to continue to move toward the hot delivery roller the width distance of a billet, the second billet will fall onto the hot delivery roller, and then the hot delivery roller drives the second billet forward to leave the current roller section, and so on, until the current group of billets is split, and then the billet transfer car pushes the new group of billets to the head end of the beam frame on the support rail to continue the billet splitting operation.

[0021] The beneficial effects of the present invention are:

[0022] The device can realize both the grouping and the separation of ingots, so that one set of equipment can realize two functions, which saves equipment investment and has a small site size requirement. The device adopts hydraulic cylinders as the power source, which can meet the thrust requirements when grouping large-section ingots or even slabs, and has good adaptability. The synchronous shaft of the device can not only transmit power to each claw trolley synchronously, ensuring the synchronous movement of all claw trolleys, but also simultaneously receive input power from multiple hydraulic cylinders, ensuring the parallel output of the hydraulic cylinders. The claws of the device use a "tumbler" structure with the center of gravity below the rotation point to achieve automatic resetting, and use the limit at the lower part of one side to achieve the effect of pushing the ingot on only one side. The ingot can be transferred backward by reciprocating motion, reducing the stroke of a single movement of the claw trolley. The mobile control mechanism and the ingot detection mechanism of the device realize precise control of automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of a steel pushing device capable of grouping and separating ingots.

[0024] Figure 2 It is a side view of a steel pushing device that can realize the grouping and separation of cast billets.

[0025] Figure 3 It is a top view of a steel pushing device that can realize the grouping and separation of cast billets.

[0026] Figure 4 It is the assembly side view of the beam frame and the pusher claw trolley.

[0027] Figure 5 This is a side view of the beam frame.

[0028] Figure 6 It is a front view of the claw trolley.

[0029] Figure 7 It is a side sectional view of the assembly of the pusher claw.

[0030] Figure 8 It is a side sectional view of the assembly of the travel wheel.

[0031] Figure 9 This is the assembly front view of the hydraulic cylinder and synchronous shaft.

[0032] Figure 10 It is a front view of the movable arm.

[0033] Figure 11 It is a top view of the movable arm.

[0034] Figure 12 This is the front view of the encoder installation.

[0035] Figure 13 This is the front view of the installation of the laser rangefinder.

[0036] Figure 14 This is a working diagram for grouping ingots.

[0037] Figure 15 It is a working diagram when separating the ingot.

[0038] In the picture:

[0039] 1- beam frame; 11- frame body; 12- support rail; 13- pad; 14- beam frame base;

[0040] 2-push claw trolley; 21-push claw trolley body; 22-pin shaft; 23-clamping plate; 24-push claw; 241-thickening plate; 25-limiting shaft; 26-wheel shaft; 27-traveling wheel; 271-wheel; 272-rolling bearing; 273-end cover; 274-oil cup; 28-external ear piece;

[0041] 3-synchronizing shaft; 31-fixed arm; 32-movable arm; 33-bearing seat; 34-synchronizing shaft support;

[0042] 4-hydraulic cylinder; 41-hydraulic cylinder support; 42-protective cover;

[0043] 5-movement control mechanism; 51-encoder; 52-encoder support;

[0044] 6-slab detection mechanism; 61-laser rangefinder; 62-laser rangefinder support;

[0045] 7- casting billet;

[0046] 8- Turn over the cooling bed;

[0047] 9-Hot delivery roller. DETAILED DESCRIPTION

[0048] The present application will be further described below with reference to the accompanying drawings and examples.

[0049] This embodiment discloses a steel pushing device capable of realizing the grouping and separation of cast billets. Figures 1 to 9 As shown, it includes a beam frame 1, a pusher trolley 2, a synchronous shaft 3, a hydraulic cylinder 4, a movement control mechanism 5 and a casting billet detection mechanism 6; wherein:

[0050] Multiple beams 1 are arranged in parallel, see Figure 2 and Figure 3 , the beam 1 is provided with a support rail 12 and a track, see Figure 1 、 Figure 4 and Figure 5 The support rail 12 is used to store the ingot 7 transported from the head end of the beam 1 by the turning cooling bed 8 or the ingot transfer car;

[0051] The pusher trolley 2 is movably arranged on the track of each beam frame 1. Figures 1 to 4 There are several rotatable pusher claws 24 distributed along the pusher claw trolley 2. The center of gravity of the pusher claw 24 is below the rotation point and can automatically return to the vertical state and be limited at the lower part of the side facing the tail end of the beam frame 1. In the vertical state, the upper part of the pusher claw 24 facing the tail end of the beam frame 1 can push the billet 7. When the upper part of the side facing the head end of the beam frame 1 passes through the billet 7, it will rotate backward to avoid it. The upper part is higher than the support rail 12. Figure 1 、 Figure 4 and Figure 6 ;

[0052] There are connecting rod assemblies distributed along the synchronous shaft 3, and each connecting rod assembly is connected to each pusher trolley 2, as shown in FIG. Figures 2 to 4 ;

[0053] At least one hydraulic cylinder 4 is used, which can drive the synchronous shaft 3 to rotate and drive all the pusher trolleys 2 to move synchronously through the connecting rod assemblies. Figures 1 to 3 ;

[0054] The movement control mechanism 5 is used to control the movement direction and movement amount of the pusher claw trolley 2 through the hydraulic cylinder 4;

[0055] The casting blank detection mechanism 6 is used to detect whether there is casting blank 7 at the tail end of the beam frame 1. Figure 3 .

[0056] Regarding the beam 1, in this embodiment, preferably: Figure 4 and Figure 5As shown, the beam frame 1 adopts a left and right split structure, in which a support rail 12 is installed on the upper end of one side frame body 11, and the space between the two side frames 11 is used to accommodate the claw trolley 2 and the connecting rod assembly. The opposite surfaces of the two side frames 11 are provided with C-shaped grooves, and the C-shaped grooves are used to accommodate and limit the walking wheels 27 of the claw trolley 2. Pads 13 are installed on the inner top and bottom surfaces of the C-shaped grooves as tracks for the walking wheels. The beam frame 1 adopts a left and right split structure, which can provide space for the connecting rod assembly to move, and is convenient for the hydraulic cylinder 4 to be installed below. The setting of the C-shaped groove can limit and prevent the claw trolley 2 from falling off; as shown Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the beam frame 1 adopts a steel structure welded beam, and the beam frame 1 is supported and installed on a concrete foundation through a beam frame base 14. The beam frame base 14 is a steel structure processed part, and the support rail 12 adopts a heavy rail.

[0057] Regarding the finger carriage 2, in this embodiment, preferably: Figure 6 As shown, the claw trolley 2 includes a claw trolley body 21, a pin shaft 22, a claw 24, a limiting shaft 25, a wheel shaft 26, a running wheel 27 and an external ear piece 28. The claw trolley body 21 is two steel plates. The pin shaft 22 passes through the two steel plates and is fixedly connected. The claw 24 is located between the two steel plates and is rotatably installed through the pin shaft 22. The limiting shaft 25 is provided between the two steel plates and is used to limit the lower part of the side of the vertical claw 24 facing the tail end of the beam. The wheel shaft 26 passes through the two steel plates and is fixedly connected. The running wheel 27 is mounted on the wheel shaft 26 and is located on both sides of the claw trolley body 21. The external ear piece 28 is fixed between the two steel plates and extends out of the two steel plates for articulating the connecting rod assembly. The claw trolley has a simple structure and is easy to install. The wheel shaft 26 can be welded to the two steel plates. Figure 6 and Figure 7 As shown, the pin 22 is fixed to the steel plate by a clamping plate 23. A clamping groove is provided on the outer circle of the pin 22. The clamping plate 23 is inserted into the clamping groove and fits on the steel plate and is fixed with bolts. The clamping plate 23 can limit the axial and circumferential movement of the pin 22. There is no need to weld the pin 22, and the pin 22 can be recovered. Figure 6 As shown, the upper part of the finger 24 is narrow and the lower part is wide, forming a "tumbler" structure; Figure 8 As shown, the running wheel 27 includes a wheel 271 with a flange, a rolling bearing 272, an end cover 273 and an oil cup 274. The wheel 271 is mounted on the wheel shaft 26 through the rolling bearing 272. The end cover 273 is mounted on the shaft end of the wheel shaft 26 and limits the inner ring of the rolling bearing 272. The oil cup 274 is mounted on the end of the wheel 271 and limits the outer ring of the rolling bearing 272. Figure 6 As shown, a thickened plate 241 is provided on the upper portion of one side of the pusher claw 24 facing the tail end of the beam frame 1 in the vertical state.

[0058] Regarding the synchronous shaft 3, in this embodiment, preferably: Figure 1 、 Figure 2 、 Figure 9 As shown, the synchronous shaft 3 is mounted on the synchronous shaft support 34 through the bearing seat 33; the synchronous shaft 3 can be made of thick-walled steel pipe; Figure 1 、 Figure 2 、 Figure 4 、 Figures 9 to 11 As shown, the connecting rod assembly includes a fixed arm 31 and a movable arm 32. The fixed arm 31 is fixed on the synchronization shaft 3. The movable arm 32 adopts a double-ear structure and is hinged to the fixed arm 31 and the pusher trolley 2 respectively. The fixed arm 31 can be welded and fixed on the synchronization shaft 3.

[0059] Regarding the hydraulic cylinder 4, in this embodiment, preferably: Figure 1 、 Figure 2 、 Figure 9 As shown, the hydraulic cylinder 4 and the synchronous shaft 3 are located below the plane formed by each beam 1. The hydraulic cylinder 4 is mounted on a hydraulic cylinder support 41. The hydraulic cylinder support 41 is provided with a protective cover 42 that can cover the top of the hydraulic cylinder 4. The protective cover 42 can effectively isolate the radiant heat and increase the service life of the hydraulic cylinder 4.

[0060] Regarding the movement control mechanism 5, in this embodiment, preferably: the movement control mechanism 5 includes an encoder 51 and a controller, the encoder 51 is used to detect the rotation direction and rotation angle of the synchronization shaft 3, the controller is electrically connected to the hydraulic cylinder 4 and the encoder 51 respectively, the controller can receive feedback from the encoder 51 and control the extension direction and extension amount of the hydraulic cylinder 4 so that the pusher trolley 2 reaches the set movement direction and movement amount; Figure 12 As shown, one end of the encoder 51 is mounted on the synchronous shaft 3 and the other end is mounted on the encoder support 52 , and the encoder support 52 is mounted on the synchronous shaft support 34 .

[0061] Regarding the casting blank detection mechanism 6, in this embodiment, preferably: the casting blank detection mechanism 6 includes a laser rangefinder 61, such as Figure 3 As shown, the distance measurement path of the laser rangefinder 61 is perpendicular to the tail end of each beam 1 and is within the height range of the billet 7. When the distance measurement value of the laser rangefinder 61 is within a certain threshold, the presence of the billet 7 at the tail end of the beam 1 is detected; Figure 13 As shown, the laser rangefinder 61 is mounted on a laser rangefinder support 62 .

[0062] The billet discharging process of the above-mentioned steel pushing device capable of realizing billet grouping and billet separation is as follows.

[0063] When the billet is grouped into 7 groups, Figure 14 As shown:

[0064] The cooling bed 8 is turned over to place the ingots 7 one by one on the head end of the beam 1 on the support rail 12. Each time a ingot 7 is placed, the mobile control mechanism 5 controls the claw trolley 2 to move a short distance toward the head end of the beam 1, so that the first claw 24 passes the newly placed ingot 7, and then moves to the tail end of the beam 1 to reset, so that the first claw 24 pushes the newly placed ingot 7 from the head end of the beam 1 to the storage position behind the first claw 24. This is repeated until the first group of ingots 7 are collected at the storage position behind the first claw 24. The mobile control mechanism 5 controls the claw trolley 2 to move a long distance toward the tail end of the beam 1. , so that the first pusher claw 24 pushes the first group of cast billets 7 into the storage position behind the original second pusher claw 24, and then moves to the head end of the beam 1 to reset, and then continues to collect the next group of cast billets 7 at the storage position behind the first pusher claw 24. Every time a group of cast billets 7 is collected, the movement control mechanism 5 makes the current groups of cast billets 7 move backward to the storage position behind the next pusher claw 24, until the first group of cast billets 7 reaches the storage position behind the last pusher claw 24, and then continues to collect the last group of cast billets 7 at the storage position behind the first pusher claw 24, that is, a group of cast billets 7 is stored in the storage position behind each pusher claw 24.

[0065] When the casting is carried out, Figure 15 As shown:

[0066] The billet transfer car pushes a group of billets 7 to the head end position of the beam 1 on the support rail 12, and the mobile control mechanism 5 controls the claw trolley 2 to reciprocate and transfer the current group of billets 7 step by step to the next claw 24 until the last claw 24 receives the current group of billets 7. Then the mobile control mechanism 5 controls the claw trolley 2 to move slowly toward the tail end of the beam 1, so that the last claw 24 pushes the current group of billets 7 to move slowly toward the hot delivery roller 9 until the billet detection mechanism 6 detects the presence of billets 7 at the tail end of the beam 1. The mobile control mechanism 5 controls the claw trolley 2 to continue to move the width of one billet 7 toward the hot delivery roller 9. The distance is determined by the following steps: since the support rail 12 is higher than the hot delivery roller 9, the first billet 7 will fall onto the hot delivery roller 9, and then the hot delivery roller 9 drives the first billet 7 to move forward and leave the current roller section, and then the mobile control mechanism 5 controls the pusher trolley 2 to continue to move toward the hot delivery roller 9 by the width of a billet 7, and the second billet 7 will fall onto the hot delivery roller 9, and then the hot delivery roller 9 drives the second billet 7 to move forward and leave the current roller section, and so on, until the current group of billets 7 is split, and then the billet transfer car pushes a new group of billets 7 to the head end position of the beam 1 on the support rail 12 to continue the billet 7 splitting operation.

[0067] The device can not only realize the grouping of the ingots 7, but also realize the separation of the ingots 7, so that one set of equipment can realize two functions, saves equipment investment, and has a small site size requirement; the device adopts a hydraulic cylinder 4 as a power source, which can meet the thrust requirements when grouping large-section ingots 7 or even slabs, and has good adaptability; the synchronous shaft 3 of the device can not only synchronously transmit power to each claw trolley 2, ensuring the synchronous movement of all claw trolleys 2, but also simultaneously accept the input power of multiple hydraulic cylinders 4, ensuring the parallel output of the hydraulic cylinders 4; the claw 24 of the device uses a "tumbler" structure with the center of gravity below the rotation point to achieve automatic reset, and uses the limit at the lower part of one side to achieve the effect of pushing the ingot 7 on only one side, and uses reciprocating motion to transfer the ingot 7 backward, reducing the stroke of a single movement of the claw trolley 2; the mobile control mechanism 5 and the ingot detection mechanism 6 of the device realize precise control of automatic operation.

[0068] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A steel pushing device capable of grouping and separating cast billets, characterized in that: It includes a beam frame, a pusher trolley, a synchronous shaft, a hydraulic cylinder, a mobile control mechanism and a billet detection mechanism; multiple beam frames are arranged in parallel, and the beam frames are provided with support rails and tracks, and the support rails are used to store the billets transported from the head end of the beam frame by the turning cooling bed or the billet transfer car; the pusher trolley is movably arranged on the track of each beam frame, and a number of rotatable pushers are distributed along the pusher trolley, and the center of gravity of the pusher is below the rotation point and can automatically return to the vertical state and be limited at the lower part of the side facing the tail end of the beam frame. The pusher is facing the vertical state. The upper part of one side of the tail end of the beam can push the ingot, and the upper part of the side facing the head end of the beam will rotate backward to avoid the ingot when passing through the ingot, and the upper part is higher than the support rail; connecting rod assemblies are distributed along the synchronous shaft, and each connecting rod assembly is connected to each claw trolley respectively; at least one hydraulic cylinder is used, which can drive the synchronous shaft to rotate and drive all the claw trolleys to move synchronously through each connecting rod assembly; the movement control mechanism is used to control the movement direction and movement amount of the claw trolley through the hydraulic cylinder; the ingot detection mechanism is used to detect whether there is a ingot at the tail end of the beam.

2. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 1, characterized in that: The beam frame adopts a split structure on the left and right sides, with a support rail installed on the upper end of one side of the frame, and the space between the two sides of the frame is used to accommodate the pusher trolley and the connecting rod assembly. C-shaped grooves are set on the opposite surfaces of the two sides of the frame. The C-shaped grooves are used to accommodate and limit the walking wheels of the pusher trolley, and pads are installed on the inner top and bottom surfaces of the C-shaped grooves as tracks for the walking wheels.

3. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 1, characterized in that: The pusher claw trolley includes a pusher claw trolley body, a pin shaft, a pusher claw, a limit shaft, a wheel shaft, a traveling wheel and an external ear piece. The pusher claw trolley body is two steel plates. The pin shaft passes through the two steel plates and is fixedly connected. The pusher claw is located between the two steel plates and is rotatably installed through the pin shaft. The limit shaft is provided between the two steel plates and is used to limit the lower part of the side of the pusher claw facing the tail end of the beam in the vertical state. The wheel shaft passes through the two steel plates and is fixedly connected. The traveling wheels are installed on the wheel shaft and are located on both sides of the pusher claw trolley body. The external ear piece is fixed between the two steel plates and extends out of the two steel plates for articulating the connecting rod assembly.

4. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 3, characterized in that: The pin is fixed on the steel plate through a clamping plate. A clamping groove is provided on the outer circle of the pin. The clamping plate is inserted into the clamping groove and fits on the steel plate and is fixed with bolts.

5. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 3, characterized in that: The traveling wheel includes a wheel with a flange, a rolling bearing, an end cover and an oil cup. The wheel is installed on the wheel axle through the rolling bearing. The end cover is installed at the end of the wheel axle and limits the inner ring of the rolling bearing. The oil cup is installed at the end of the wheel and limits the outer ring of the rolling bearing.

6. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 1, characterized in that: The connecting rod assembly includes a fixed arm and a movable arm. The fixed arm is fixed on the synchronous shaft, and the movable arm adopts a double-ear structure to be hinged with the fixed arm and the pusher claw trolley respectively.

7. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 1, characterized in that: The hydraulic cylinder and the synchronous shaft are located below the plane formed by the beams. The hydraulic cylinder is installed on a hydraulic cylinder support. The hydraulic cylinder support is provided with a protective cover that can cover the upper part of the hydraulic cylinder.

8. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 1, characterized in that: The mobile control mechanism includes an encoder and a controller. The encoder is used to detect the rotation direction and rotation angle of the synchronous shaft. The controller is electrically connected to the hydraulic cylinder and the encoder respectively. The controller can receive feedback from the encoder and control the extension and retraction direction and amount of the hydraulic cylinder so that the claw trolley reaches the set movement direction and movement amount.

9. The steel pushing device capable of realizing the grouping and separation of cast strands according to claim 1, characterized in that: The billet detection mechanism includes a laser rangefinder. The distance measurement path of the laser rangefinder is perpendicular to the tail end of each beam and is within the height range of the billet. When the distance measurement value of the laser rangefinder is within a certain threshold, the presence of the billet at the tail end of the beam is detected.

10. A method for producing a blank, characterized in that: Based on the steel pushing device capable of realizing the grouping and separation of cast strands as claimed in any one of claims 1 to 9: When grouping the billets: turn over the cooling bed and place the billets one by one on the head end of the beam on the support rail. Each time a billet is placed, the mobile control mechanism controls the pusher trolley to move a short distance to the head end of the beam, so that the first pusher passes the newly placed billet, and then moves to the tail end of the beam to reset, so that the first pusher pushes the newly placed billet from the head end of the beam to the storage position behind the first pusher. This is repeated until the first group of billets is collected at the storage position behind the first pusher. The mobile control mechanism controls the pusher trolley to move a large distance to the tail end of the beam. After a certain distance, the first pusher claw pushes the first group of billets into the storage position behind the original second pusher claw, and then moves to the head end of the beam to reset, and then continues to collect the next group of billets at the storage position behind the first pusher claw. Every time a group of billets is collected, the mobile control mechanism moves the current group of billets backward to the storage position behind the next pusher claw, until the first group of billets reaches the storage position behind the last pusher claw, and then continues to collect the last group of billets at the storage position behind the first pusher claw, that is, a group of billets is stored in the storage position behind each pusher claw; When the billet is separated: the billet transfer car pushes a group of billets to the head end of the beam on the support rail, and the mobile control mechanism controls the claw trolley to reciprocate and transfer the current group of billets to the next claw step by step, until the last claw receives the current group of billets, and then the mobile control mechanism controls the claw trolley to move slowly to the tail end of the beam, so that the last claw pushes the current group of billets to move slowly to the hot delivery roller, until the billet detection mechanism detects the presence of billets at the tail end of the beam, and the mobile control mechanism controls the claw trolley to continue to move one billet to the hot delivery roller. Width distance, since the support rail is higher than the hot delivery roller, the first billet will fall onto the hot delivery roller, and then the hot delivery roller drives the first billet forward to leave the current roller section, and then the mobile control mechanism controls the claw trolley to continue to move toward the hot delivery roller the width distance of a billet, the second billet will fall onto the hot delivery roller, and then the hot delivery roller drives the second billet forward to leave the current roller section, and so on, until the current group of billets is split, and then the billet transfer car pushes the new group of billets to the head end of the beam frame on the support rail to continue the billet splitting operation.

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