Steel pushing device capable of achieving casting blank grouping and casting blank separating and blank discharging method

Abstract

The invention discloses a steel pushing device capable of achieving casting blank grouping and casting blank separation and a blank ejection method. The device comprises a beam frame, a pusher dog trolley, a synchronizing shaft, a hydraulic cylinder, a movement control mechanism and a casting blank detection mechanism. The plurality of beam frames are arranged in parallel, and supporting rails and tracks are arranged on the beam frames; the pusher dog trolley is movably arranged on the track of each beam frame, a plurality of rotatable pusher dogs are distributed along the line of the pusher dog trolley, and the pusher dogs can automatically return to a vertical state and are limited at the lower parts of one sides facing the tail ends of the beam frames; connecting rod assemblies are distributed along the synchronizing shaft. The hydraulic cylinder can drive the synchronizing shaft to rotate and drive all the pusher dog trolleys to move synchronously through the connecting rod assemblies. The moving control mechanism is used for controlling the moving direction and the moving amount of the pusher dog trolley through the hydraulic cylinder. The casting blank detection mechanism is used for detecting whether casting blanks exist at the tail end of the beam frame. According to the device, the two functions of casting blank grouping and casting blank dividing can be achieved through one device, equipment investment is saved, and the requirement for the site scale is small.

Description

Technical Field

[0001] The invention belongs to the field of continuous casting of iron and 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 ingot is first cooled in the crystallizer, then cooled and solidified in the secondary cooling area, straightened in the straightening machine area, and then enters the pre-cutting roller. After the liquid core of the ingot is completely solidified, it is cut in the flame cutting area, 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: The first method of billet discharge is direct hot delivery, which can be divided into two situations: In the first situation, if the hot delivery line is directly opposite to the billet discharge line of the continuous casting machine, direct hot delivery can be carried out; In the second situation, 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 to the vicinity of the hot delivery line in groups through the billet transfer car, and because 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.

[0004] The second way to discharge the billet is to take it off the line directly: the temperature of the billet is generally very high before it comes off the line. Before it comes off the line, it needs to be cooled and straightened individually on a turning cooling bed, and then the single billets after cooling and straightening are lifted in groups. Therefore, the billets need to be grouped according to the capacity of the clamps.

[0005] As can be seen from the above, there is a need to group and separate the ingots 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

[0006] The object of the present invention is to provide a steel pushing device capable of realizing the grouping and separation of ingots, and a method for discharging ingots based on the above device. The device satisfies the requirement that a set of devices can realize the two functions of grouping and separating ingots, thereby saving equipment investment and having smaller requirements on site scale.

[0007] The technical solution adopted by the present invention is: A steel pushing device capable of realizing the grouping and separation of ingots, comprising a beam frame, a claw 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 beam frame by the overturning cooling bed or the ingot transfer vehicle; the claw trolley is movably arranged on the track of each beam frame, and a plurality of rotatable claws are distributed along the claw trolley, and the center of gravity of the claw 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 In a vertical state, the upper part of the pusher claw facing 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 respectively connected to each pusher claw trolley; 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.

[0008] 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 claw trolley and the connecting rod assembly. C-shaped grooves are arranged on the opposite surfaces of the two side frames, and the C-shaped grooves are used to accommodate and limit the running wheels of the claw trolley. Pads are installed on the inner top and bottom surfaces of the C-shaped grooves as tracks for the running wheels.

[0009] 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 arranged 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 frame in the vertical state. 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.

[0010] Preferably, the pin is fixed on the steel plate by 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 by bolts.

[0011] Preferably, the traveling wheel comprises 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.

[0012] Preferably, the connecting rod assembly comprises a fixed arm and a movable arm, the fixed arm is fixed on the synchronous shaft, and the movable arm is hinged to the fixed arm and the pusher claw trolley respectively by adopting a double-ear plate structure.

[0013] Preferably, the hydraulic cylinder and the synchronous shaft are located below the plane formed by each beam frame, and the hydraulic cylinder is mounted on a hydraulic cylinder support, and a protective cover capable of covering the upper part of the hydraulic cylinder is provided on the hydraulic cylinder support.

[0014] Preferably, 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 can reach the set movement direction and movement amount.

[0015] Preferably, the ingot detection mechanism includes a laser rangefinder, the distance measurement path of the laser rangefinder is perpendicular to the tail end of each beam frame and is within the height range of the ingot, and when the distance measurement value of the laser rangefinder is within a certain threshold, the presence of the ingot at the tail end of the beam frame is detected.

[0016] A billet discharging method, based on the above-mentioned steel pushing device capable of realizing billet grouping and billet separation: When grouping the ingots: turn over the cooling bed and place the ingots one by one on the head end of the beam frame on the support rail. Each time a ingot is placed, the mobile control mechanism controls the pusher trolley to move a short distance to the head end of the beam frame, so that the first pusher passes the newly placed ingot, and then moves to the tail end of the beam frame to reset, so that the first pusher pushes the newly placed ingot from the head end of the beam frame to the storage position behind the first pusher, and repeats this process until the storage position behind the first pusher gathers the first group of ingots, and then the mobile control mechanism controls the pusher trolley to move a large distance to the tail end of the beam frame. The first pusher claw moves the first group of cast billets to the storage position behind the second pusher claw, and then moves to the front end of the beam frame to reset. Then, the next group of cast billets is collected at the storage position behind the first pusher claw. Each time a group of cast billets is collected, the mobile control mechanism moves the current groups of cast billets backward to the storage position behind the next pusher claw. After the first group of cast billets reaches the storage position behind the last pusher claw, the last group of cast billets is collected at the storage position behind the first pusher claw, that is, a group of cast billets is stored at 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 frame on the support rail, and the mobile control mechanism controls the claw trolley to reciprocate and gradually transfer the current group of billets to the next claw, until the last claw receives the current group of billets, and then the mobile control mechanism controls the claw trolley to slowly move to the tail end of the beam frame, 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 frame, 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 and leaves 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, and the second billet will fall onto the hot delivery roller, and then the hot delivery roller drives the second billet forward and leaves the current roller section, and this is repeated until the current group of billets is split, and then the billet transfer car pushes a new group of billets to the head end of the beam frame on the support rail to continue the billet splitting operation.

[0017] The beneficial effects of the present invention are: The device can realize both the grouping and the separation of ingots, so that one set of device can realize two functions, thus saving equipment investment and having small requirements for site size; the device adopts hydraulic cylinders as power sources, 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 pusher trolley synchronously, ensuring the synchronous movement of all pusher trolleys, but also simultaneously accept input power of multiple hydraulic cylinders, ensuring the parallel output of hydraulic cylinders; the pushers 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, and use reciprocating motion to transfer the ingot backward, reducing the stroke of a single movement of the pusher trolley; the mobile control mechanism and the ingot detection mechanism of the device realize precise control of automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a steel pushing device capable of grouping and separating ingots.

[0019] Figure 2 It is a side view of a steel pushing device capable of grouping and separating ingots.

[0020] Figure 3 It is a top view of a steel pushing device capable of grouping and separating ingots.

[0021] Figure 4 It is the assembly side view of the beam frame and the claw trolley.

[0022] Figure 5 It is a side view of the beam frame.

[0023] Figure 6 It is a front view of the claw trolley.

[0024] Figure 7 It is a side sectional view of the assembly of the pusher claw.

[0025] Figure 8 It is the assembly side sectional view of the travel wheel.

[0026] Fig. 9 It is the assembly front view of the hydraulic cylinder and synchronous shaft.

[0027] Fig.10 It is a front view of the movable arm.

[0028] Fig.11 It is a top view of the movable arm.

[0029] Fig.12 This is the front view of the encoder installation.

[0030] Fig.13 This is the front view of the installation of the laser rangefinder.

[0031] Fig.14 It is a working diagram for grouping the ingots.

[0032] Fig.15 It is a working diagram for splitting the ingot.

[0033] In the figure: 1-beam frame; 11-frame body; 12-rail; 13-pad; 14-beam frame base; 2-claw trolley; 21-claw trolley body; 22-pin shaft; 23-claw plate; 24-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; 3-synchronizing shaft; 31-fixed arm; 32-movable arm; 33-bearing seat; 34-synchronizing shaft support; 4-hydraulic cylinder; 41-hydraulic cylinder support; 42-protective cover; 5-movement control mechanism; 51-encoder; 52-encoder support; 6-casting billet detection mechanism; 61-laser rangefinder; 62-laser rangefinder support; 7- Casting billet; 8-Turn over the cooling bed; 9-Hot delivery roller. DETAILED DESCRIPTION

[0034] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0035] 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 claw trolley 2, a synchronous shaft 3, a hydraulic cylinder 4, a movement control mechanism 5 and a casting billet detection mechanism 6; wherein: Multiple beams 1 are arranged in parallel, see Figure 2 and Figure 3 , the beam frame 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 frame 1 by the turning cooling bed 8 or the ingot transfer vehicle; The claw trolley 2 is movably arranged on the track of each beam frame 1. Figures 1 to 4 A plurality of rotatable pusher claws 24 are 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 a vertical state and be limited at the lower part of the side facing the tail end of the beam frame 1. The pusher claw 24 can push the billet 7 at the upper part of the side facing the tail end of the beam frame 1 in the vertical state, and will rotate backward to avoid the billet 7 when passing the upper part of the side facing the head end of the beam frame 1, and the upper part is higher than the support rail 12. Figure 1 , Figure 4 and Figure 6 ; There are connecting rod assemblies distributed along the synchronous shaft 3, and each connecting rod assembly is connected to each pusher claw trolley 2, as shown in FIG. Figures 2 to 4 ; At least one hydraulic cylinder 4 is used, which can drive the synchronous shaft 3 to rotate and drive all the pusher claw trolleys 2 to move synchronously through each connecting rod assembly. Figures 1 to 3 ; 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; The casting blank detection mechanism 6 is used to detect whether there is a casting blank 7 at the tail end of the beam frame 1. Figure 3 .

[0036] Regarding the beam frame 1, in this embodiment, preferably: Figure 4 and Figure 5 As shown, the beam frame 1 adopts a left-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 running wheels 27 of the claw trolley 2. Pads 13 are installed on the inner top surface and the inner bottom surface of the C-shaped groove as the track of the running wheel. The beam frame 1 adopts a left-right split structure, which can provide a movable space for the connecting rod assembly and facilitate the installation of the hydraulic cylinder 4 at the bottom. The setting of the C-shaped groove can limit the claw trolley 2 and prevent it from falling off; as shown Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the beam frame 1 is made of welded steel beams, 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 processed steel structure part, and the support rail 12 is a heavy rail.

[0037] 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 arranged 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 frame, the wheel shaft 26 passes through the two steel plates and is fixedly connected, the running wheel 27 is installed on the wheel shaft 26 and is located on both sides of the claw trolley body 21, and 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; as shown in FIG. Figure 6 and Figure 7 As shown, the pin 22 is fixed on 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, presenting 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, and 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 part of one side of the pusher claw 24 facing the rear end of the beam frame 1 in the vertical state.

[0038] Regarding the synchronous shaft 3, in this embodiment, preferably: Figure 1 , Figure 2 , Fig. 9 As shown, the synchronous shaft 3 is installed 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 synchronous shaft 3. The movable arm 32 adopts a double-ear structure to be hinged with the fixed arm 31 and the pusher claw trolley 2 respectively. The fixed arm 31 can be welded and fixed on the synchronous shaft 3.

[0039] Regarding the hydraulic cylinder 4, in this embodiment, preferably: Figure 1 , Figure 2 , Fig. 9 As shown, the hydraulic cylinder 4 and the synchronous shaft 3 are located below the plane formed by each beam 1, and 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.

[0040] Regarding the mobile control mechanism 5, in this embodiment, preferably: the mobile 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 synchronous 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 claw trolley 2 reaches the set movement direction and movement amount; Fig.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 .

[0041] 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 frame 1 and is within the height range of the ingot 7. When the distance measurement value of the laser rangefinder 61 is within a certain threshold, it is detected that there is a ingot 7 at the tail end of the beam frame 1; Fig.13 As shown, the laser rangefinder 61 is mounted on a laser rangefinder support 62 .

[0042] The billet discharging process of the above-mentioned steel pushing device capable of realizing billet grouping and billet separation is as follows.

[0043] When the billet is grouped into 7 groups, Fig.14 As shown: The cooling bed 8 is turned over to place the ingots 7 one by one at the head end of the beam frame 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 to the head end of the beam frame 1, so that the first claw 24 passes the newly placed ingot 7, and then moves to the tail end of the beam frame 1 to reset, so that the first claw 24 pushes the newly placed ingot 7 from the head end of the beam frame 1 to the storage position behind the first claw 24, and repeats this process until the storage position behind the first claw 24 collects the first group of ingots 7, and then the mobile control mechanism 5 controls the claw trolley 2 to move a long distance to the tail end of the beam frame 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 front end of the beam frame 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. Each time a group of cast billets 7 is collected, the mobile control mechanism 5 moves the current groups of cast billets 7 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.

[0044] When the casting is divided into 7 pieces, Fig.15 As shown: The billet transfer vehicle pushes a group of billets 7 to the front end of the beam frame 1 on the support rail 12, and the mobile control mechanism 5 controls the claw trolley 2 to reciprocate and gradually transfer the current group of billets 7 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 slowly move toward the rear end of the beam frame 1, so that the last claw 24 pushes the current group of billets 7 to slowly move toward the hot delivery roller 9, until the billet detection mechanism 6 detects that there is a billet 7 at the rear end of the beam frame 1, and the mobile control mechanism 5 controls the claw trolley 2 to continue to move the width of a billet 7 toward the hot delivery roller 9. 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 claw 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 this is repeated until the current group of billets 7 are split, and then the billet transfer car pushes a new group of billets 7 to the head end position of the beam frame 1 on the support rail 12 to continue the billet 7 splitting operation.

[0045] The device can realize both grouping and splitting of the ingots 7, so that one set of device can realize two functions, thus saving equipment investment and requiring a smaller site size. 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 transmit power to each claw trolley 2 synchronously, ensuring the synchronous movement of all claw trolleys 2, but also simultaneously receive input power from multiple hydraulic cylinders 4, ensuring the parallel output of the hydraulic cylinders 4. The claw 24 of the device realizes automatic resetting by using a "tumbler" structure in which the center of gravity is below the rotation point, and by using the limit at the lower part of one side, the effect of pushing the ingot 7 on only one side can be achieved. By using reciprocating motion, the ingot 7 can be transferred backward, reducing the stroke of a single motion 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.

[0046] 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 the 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 creative work are within the scope of protection of the present application.

Claims

1. A steel pushing device capable of realizing the grouping and separation of cast billets, characterized in that: It includes a beam frame, a claw 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 claw trolley is movably arranged on the track of each beam frame, and a number of rotatable claws are distributed along the claw trolley, the center of gravity of the claw 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, and the claw faces 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 backwards 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 respectively connected to each claw trolley; 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 the cast billets as claimed in 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 of the frames, and the space between the two frames is used to accommodate the push claw trolley and the connecting rod assembly. C-shaped grooves are set on the opposite surfaces of the two frames, and the C-shaped grooves are used to accommodate and limit the running wheels of the push claw trolley. Pads are installed on the inner top and bottom surfaces of the C-shaped grooves as tracks for the running wheels.

3. The steel pushing device capable of realizing the grouping and separation of the cast billets as claimed in 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 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 arranged 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 frame in the vertical state. 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.

4. The steel pushing device capable of realizing the grouping and separation of the cast billets as claimed in claim 3, characterized in that: The pin shaft is fixed on the steel plate through a clamping plate. A clamping groove is provided on the outer circle of the pin shaft. 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 the casting billets as claimed in claim 3, characterized in that: The travel 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 on the shaft 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 billets as claimed in claim 1, characterized in that: The connecting rod assembly comprises a fixed arm and a movable arm, the fixed arm is fixed on the synchronous shaft, and the movable arm adopts a double-ear piece structure to be respectively hinged with the fixed arm and the pusher claw trolley.

7. The steel pushing device capable of realizing the grouping and separation of cast billets as claimed in claim 1, characterized in that: The hydraulic cylinder and the synchronous shaft are located below the plane formed by the beam frames. 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 billets as claimed in 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 direction and extension amount of the hydraulic cylinder so that the claw trolley can reach the set movement direction and movement amount.

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

10. A method for discharging a blank, characterized in that: Based on the steel pushing device capable of realizing the grouping and separation of the cast billets as claimed in any one of claims 1 to 9: When grouping the ingots: turn over the cooling bed and place the ingots one by one on the head end of the beam frame on the support rail. Each time a ingot is placed, the mobile control mechanism controls the pusher trolley to move a short distance to the head end of the beam frame, so that the first pusher passes the newly placed ingot, and then moves to the tail end of the beam frame to reset, so that the first pusher pushes the newly placed ingot from the head end of the beam frame to the storage position behind the first pusher, and repeats this process until the storage position behind the first pusher gathers the first group of ingots, and then the mobile control mechanism controls the pusher trolley to move a large distance to the tail end of the beam frame. The first pusher claw moves the first group of cast billets to the storage position behind the second pusher claw, and then moves to the front end of the beam frame to reset. Then, the next group of cast billets is collected at the storage position behind the first pusher claw. Each time a group of cast billets is collected, the mobile control mechanism moves the current groups of cast billets backward to the storage position behind the next pusher claw. After the first group of cast billets reaches the storage position behind the last pusher claw, the last group of cast billets is collected at the storage position behind the first pusher claw, that is, a group of cast billets is stored at 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 frame on the support rail, and the mobile control mechanism controls the claw trolley to reciprocate and gradually transfer the current group of billets to the next claw, until the last claw receives the current group of billets, and then the mobile control mechanism controls the claw trolley to slowly move to the tail end of the beam frame, 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 frame, 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 and leaves 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, and the second billet will fall onto the hot delivery roller, and then the hot delivery roller drives the second billet forward and leaves the current roller section, and this is repeated until the current group of billets is split, and then the billet transfer car pushes a 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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