Casting blank heating and discharging mechanism

Abstract

The utility model relates to a casting blank heating and discharging mechanism, and relates to the technical field of hot rolled steel. The discharging device comprises a discharging table, a first top plate, a second top plate and a hydraulic cylinder. The discharging table is opposite to an outlet in one side of the heating furnace; the first top plate is slidably connected to the discharging table, and the moving direction of the first top plate is right opposite to an outlet of the heating furnace. A telescopic groove is formed in the end, facing the heating furnace, of the first top plate, the second top plate is slidably connected into the telescopic groove, a through groove communicated with the telescopic groove is formed in the first top plate, a pulley is rotationally connected into the through groove, a traction rope is wound around the pulley, the second top plate comprises a first end and a second end which are oppositely distributed in the length direction, and the pulley is arranged close to the second end. One end of the traction rope is connected with the first end, and the other end is connected with the discharging table. Through the telescopic structure of the second top plate and the first top plate, the lengths of the second top plate and the first top plate are reduced, meanwhile, the stroke required by the hydraulic cylinder is also reduced, and the effect of saving the occupied space is achieved.

Description

Technical Field

[0001] This application relates to the field of hot-rolled steel technology, and in particular to a billet heating and discharging mechanism. Background Art

[0002] Hot rolling refers to rolling carried out above the crystallization temperature, which can improve the processing performance of metals and alloys.

[0003] To heat the steel billet to the crystallization temperature, a natural gas heating furnace is usually used to heat the steel billet. During operation, the operator uses a crane and a lifting tool to lift the steel billet onto the workbench, and then uses a hydraulic cylinder to push the steel billet from the workbench into the heating furnace. Through continuous pushing, the steel billets are arranged to enter each temperature section of the heating furnace.

[0004] When a batch of steel billets is heated, new steel billets are continuously pushed into the furnace, so that the heated steel billets are pushed to the outlet of the heating furnace. There are two outlets, which are respectively located on both sides of the heating furnace and are distributed opposite to each other. A pushing mechanism is installed at one of the outlets on one side of the heating furnace. The pushing mechanism includes an oil cylinder and a push plate. When the piston rod of the oil cylinder extends, it drives the push plate to move into the furnace and push the steel billet out from the other outlet.

[0005] Due to the high temperature in the furnace, the piston rod of the oil cylinder cannot enter the furnace, and it can only rely entirely on the push plate to move in the furnace. This makes the length of the push plate and the stroke of the oil cylinder at least as long as the width of the heating furnace. Moreover, the oil cylinder and the push plate are arranged in the same direction, resulting in a large space occupied by the oil cylinder and the push plate. Summary of the Utility Model

[0006] In order to improve the problem of the large space occupied by the pushing mechanism, this application provides a billet heating and discharging mechanism.

[0007] A billet heating and discharging mechanism provided by this application adopts the following technical solutions:

[0008] A billet heating and discharging mechanism includes a discharging platform, a first top plate, a second top plate, and a hydraulic cylinder;

[0009] The discharging platform is distributed opposite to one of the outlets of the heating furnace;

[0010] The first top plate is slidably connected to the discharging platform, and the moving direction of the first top plate is opposite to the outlet of the heating furnace;

[0011] One end of the first top plate facing the heating furnace is provided with a telescopic groove, the second top plate is slidably connected in the telescopic groove, a through groove communicating with the telescopic groove is provided on the first top plate, a pulley is rotatably connected in the through groove, a traction rope is wound around the pulley, the second top plate includes a first end and a second end distributed oppositely along the length direction, the pulley is arranged close to the second end, one end of the traction rope is connected to the first end, and the other end is connected to the unloading platform; when the first top plate moves close to the heating furnace, the second top plate moves out of the first top plate;

[0012] The hydraulic cylinder is installed on the unloading platform and configured to drive the first top plate to move.

[0013] By adopting the above technical solution, during unloading, the hydraulic cylinder drives the first top plate to move forward. Since one end of the traction rope is pulled by the unloading platform, the other end of the traction rope pulls the second top plate to move outwards, and the second top plate pushes the billet out from the other side outlet; due to the telescopic structure of the second top plate and the first top plate, it is only necessary to ensure that the total length after expansion is not less than the width of the heating furnace, the length of each is reduced, and at the same time the required stroke of the hydraulic cylinder is also reduced, reducing the occupied space.

[0014] Optionally, a roller is rotatably connected to the unloading platform, a pulling rope is wound around the roller, the front end of the pulling rope penetrates into the telescopic groove and is connected to the second top plate, and a servo motor is provided on the unloading platform, and the motor shaft of the servo motor is coaxially connected to the roller.

[0015] By adopting the above technical solution, when the first top plate advances, the servo motor drives the roller to rotate and releases the pulling rope. When the first top plate moves backward, the servo motor drives the roller to wind up the pulling rope, and the pulling rope drives the second top plate to move into the telescopic groove, eliminating the need for manual reset of the second top plate and increasing the convenience and working efficiency of the mechanism.

[0016] Optionally, a limiting block is provided on the side wall of the first top plate, and a limiting groove for the limiting block to move is provided on the unloading platform.

[0017] By adopting the above technical solution, the limiting groove limits the movable distance of the limiting block, playing a role in positioning the first top plate.

[0018] Optionally, two adjusting blocks are fixed in the first limiting groove by first screws, the two adjusting blocks are distributed on both sides of the limiting block, and a number of first screw holes threadedly matched with the first screws are provided in the first limiting groove;

[0019] The limiting block is fixed to the first top plate by a second screw, and a number of second screw holes threadedly matched with the second screw are provided on the side wall of the first top plate.

[0020] By adopting the above technical solution, the position of the adjusting block can be adjusted by adjusting different first screw holes to change the distance between the two adjusting blocks, and the position of the limiting block can be adjusted by different second screw holes, so that the movable distance of the first top plate can be adjusted according to different requirements, with high flexibility.

[0021] Optionally, a plurality of sinking grooves are provided on the groove wall of the telescopic groove and are located below the second top plate. A plurality of roller wheels arranged at intervals along the moving direction parallel to the second top plate are rotatably connected in each of the sinking grooves, and the second top plate is supported on each of the roller wheels.

[0022] By adopting the above technical solution, when the second top plate moves, the rolling between the roller wheel and the second top plate helps to reduce the resistance received by the second top plate.

[0023] Optionally, two through grooves are arranged in parallel and are distributed on both sides of the axial direction of the hydraulic cylinder. A pulley is rotatably connected in each of the through grooves.

[0024] By adopting the above technical solution, the two traction ropes are beneficial to increasing the stability of the force received by the second top plate and can share the received acting force.

[0025] Optionally, a rib plate is connected between the piston rod of the hydraulic cylinder and the first top plate.

[0026] By adopting the above technical solution, the rib plate increases the connection strength between the piston rod of the hydraulic cylinder and the first top plate.

[0027] Optionally, a push plate is connected to the second end of the second top plate, and the bottom surface of the push plate is flush with the bottom of the heating furnace.

[0028] By adopting the above technical solution, the position of the push plate can ensure its contact area with the billet to prevent the billet from shifting during the pushing process.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. Through the telescopic structure of the second top plate and the first top plate, it is only necessary to ensure that the total length after expansion is not less than the width of the heating furnace, so that the respective lengths are reduced, and at the same time, the required stroke of the hydraulic cylinder is also reduced, reducing the occupied space.

[0031] 2. The positions of the adjusting block and the limiting block can both be adjusted, so that the movable distance of the first top plate can be adjusted according to different requirements, with high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0033] Figure 2It is a schematic diagram used in the embodiment of the present application to illustrate the unloading platform.

[0034] Figure 3 It is a schematic diagram used in the embodiment of the present application to illustrate the second top plate.

[0035] Figure 4 It is a schematic diagram used in the embodiment of the present application to illustrate the roller.

[0036] Figure 5 It is a schematic diagram used in the embodiment of the present application to illustrate the limit block.

[0037] Figure 6 It is Figure 5 The enlarged view at position A in

[0038] Explanation of reference numerals: 1, unloading platform; 21, first top plate; 211, telescopic groove; 212, through groove; 213, pulley; 214, towing rope; 22, second top plate; 221, push plate; 3, hydraulic cylinder; 31, rib plate; 4, roller; 41, pulling rope; 42, servo motor; 5, limit block; 51, limit groove; 52, adjusting block; 521, first screw; 522, first screw hole; 56, second screw; 561, second screw hole; 6, sunken groove; 61, roller; 7, heating furnace. Detailed implementation manners

[0039] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific preferred implementation manners.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of the components, so it cannot be understood as a limitation to the present utility model. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example, and do not limit the protection scope of the present utility model.

[0041] Such as Figure 1 , Figure 2 And Figure 3 , the embodiment of the present application discloses a billet heating and discharging mechanism, including an unloading platform 1, a first top plate 21, a second top plate 22 and a hydraulic cylinder 3. The unloading platform 1 is distributed opposite to the outlet on one side of the heating furnace 7, and the first top plate 21 is slidably connected to the unloading platform 1, and the moving direction of the first top plate 21 is directly opposite to the outlet of the heating furnace 7.

[0042] Such as Figure 2 And Figure 3A telescopic groove 211 extending along its length direction is provided at one end of the first top plate 21 facing the heating furnace 7, and the second top plate 22 is slidably connected in the telescopic groove 211. The moving direction of the second top plate 22 is parallel to the moving direction of the first top plate 21. Two through grooves 212 connected to the telescopic groove 211 are provided on the first top plate 21. The two through grooves 212 are distributed on both sides of the axial direction of the hydraulic cylinder 3. A pulley 213 is rotatably connected in each through groove 212, and a traction rope 214 is wound around the pulley 213. The second top plate 22 includes a first end and a second end relatively distributed along the length direction, and the pulley 213 is arranged near the second end. One end of the traction rope 214 is connected to the first end, and the other end is connected to the unloading platform 1; when the first top plate 21 moves close to the heating furnace 7, the second top plate 22 moves outward from the first top plate 21.

[0043] The second end of the second top plate 22 is connected to a push plate 221 , and the bottom surface of the push plate 221 is flush with the bottom of the heating furnace 7 .

[0044] like Figure 2 and Figure 3 A roller 4 is rotatably connected to the unloading platform 1. The roller 4 is located on one side of the hydraulic cylinder 3. A pull rope 41 is wound around the roller 4. The front end of the pull rope 41 passes through the telescopic groove 211 and is connected to the second top plate 22. A servo motor 42 is provided on the unloading platform 1. The motor shaft of the servo motor 42 is coaxially connected to the roller 4.

[0045] The hydraulic cylinder 3 is installed on the unloading platform 1 and is located on the side of the first top plate 21 away from the heating furnace 7. The piston rod of the hydraulic cylinder 3 is connected to the first top plate 21. Two ribs 31 symmetrically distributed about the axis of the hydraulic cylinder 3 are connected between the piston rod of the hydraulic cylinder 3 and the first top plate 21.

[0046] like Figure 5 and Figure 6 The side wall of the first top plate 21 is fixed with the limiting block 5 by the second screw 56. The side wall of the first top plate 21 is provided with a plurality of second screw holes 561 which are threadedly matched with the second screw 56. The limiting block 5 can be connected with different second screw holes 561 by the second screw 56 to adjust its position. The unloading platform 1 is provided with a limiting groove 51 for the limiting block 5 to move. The limiting groove 51 extends along the moving direction of the first top plate 21. Two adjustment blocks 52 are fixed in the first limiting groove 51 by the first screw 521. The two adjustment blocks 52 are distributed on both sides of the limiting block 5. The first limiting groove 51 is provided with a plurality of first screw holes 522 which are threadedly matched with the first screw 521. The two adjustment blocks 52 can change the distance between each other by threaded connection between the first screw 521 and the first screw holes 522 at different positions. When the first top plate 21 moves, the limit block 5 moves between the two adjustment blocks 52. The operator can use the two adjustment blocks 52 to limit the movable distance of the limit block 5, and then locate the starting and end positions of the first top plate 21.

[0047] As Figure 4 , a plurality of sinking grooves 6 located below the second top plate 22 are formed in the groove walls of the telescopic groove 211. The sinking grooves 6 are parallel to each other and arranged at intervals. A plurality of roller wheels 61 arranged at intervals along the moving direction parallel to the second top plate 22 are rotatably connected in each sinking groove 6. The second top plate 22 is supported on each roller wheel 61. When the second top plate 22 moves, it drives the roller wheels 61 to roll.

[0048] Principle of the embodiment of the present application: During unloading, the outlets on both sides of the heating furnace 7 are opened. The hydraulic cylinder 3 pushes the first top plate 21 forward towards the outlet, and the towing rope 214 pulls the second top plate 22 to move forward synchronously. The servo motor 42 drives the roller 4 to release the pulling rope 41. As the first top plate 21 moves and the second top plate 22 extends, the pushing plate 221 abuts against the steel billet, and gradually pushes the steel billet out from the other outlet.

[0049] After the steel billet is pushed out, the hydraulic cylinder 3 drives the first top plate 21 to move back, and the servo motor 42 drives the roller 4 to wind up the pulling rope 41. The pulling rope 41 drives the second top plate 22 to move into the telescopic groove 211.

[0050] The total length of the first top plate 21 and the second top plate 22 after being unfolded is not less than the width of the heating furnace 7, while the width of each of the first top plate 21 and the second top plate 22 is less than the width of the heating furnace 7. The stroke of the hydraulic cylinder 3 matches the length of the first top plate 21. Therefore, the lengths of the first top plate 21, the second top plate 22 and the hydraulic cylinder 3 are all reduced. In addition, when located outside the heating furnace 7, the second top plate 22 is in a contracted state, and the total length of the first top plate 21, the second top plate 22 and the hydraulic cylinder 3 is reduced, saving the occupied space.

[0051] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model.

Claims

1. A billet heating and discharging mechanism, characterized in that: It includes a discharging platform (1), a first top plate (21), a second top plate (22) and a hydraulic cylinder (3); The discharging platform (1) is distributed opposite to the outlet on one side of the heating furnace (7); The first top plate (21) is slidably connected to the discharging platform (1), and the moving direction of the first top plate (21) is directly opposite to the outlet of the heating furnace (7); One end of the first top plate (21) facing the heating furnace (7) is provided with a telescopic groove (211), the second top plate (22) is slidably connected in the telescopic groove (211), a through groove (212) communicating with the telescopic groove (211) is opened on the first top plate (21), a pulley (213) is rotatably connected in the through groove (212), a traction rope (214) is wound around the pulley (213), the second top plate (22) includes a first end and a second end distributed oppositely along the length direction, the pulley (213) is arranged close to the second end, one end of the traction rope (214) is connected to the first end, and the other end is connected to the discharging platform (1); when the first top plate (21) moves close to the heating furnace (7), the second top plate (22) moves out of the first top plate (21); The hydraulic cylinder (3) is installed on the discharging platform (1) and configured to drive the first top plate (21) to move.

2. The billet heating and discharging mechanism according to claim 1, characterized in that: A roller (4) is rotatably connected to the discharging platform (1), a pull rope (41) is wound around the roller (4), the front end of the pull rope (41) penetrates into the telescopic groove (211) and is connected to the second top plate (22), and a servo motor (42) is provided on the discharging platform (1), and the motor shaft of the servo motor (42) is coaxially connected to the roller (4).

3. The billet heating and discharging mechanism according to claim 2, characterized in that: A limiting block (5) is arranged on the side wall of the first top plate (21), and a limiting groove (51) for the limiting block (5) to move is opened on the discharging platform (1).

4. The billet heating and discharging mechanism according to claim 3, characterized in that: Two adjusting blocks (52) are fixed in the first limiting groove (51) by first screws (521), the two adjusting blocks (52) are distributed on both sides of the limiting block (5), and a number of first screw holes (522) threadedly matched with the first screws (521) are opened in the first limiting groove (51); The limiting block (5) is fixed to the first top plate (21) by a second screw (56), and a number of second screw holes (561) threadedly matched with the second screw (56) are opened on the side wall of the first top plate (21).

5. The billet heating and discharging mechanism according to claim 1, characterized in that: A number of sinking grooves (6) are opened on the groove wall of the telescopic groove (211) below the second top plate (22), and a number of roller wheels (61) arranged at intervals along the direction parallel to the moving direction of the second top plate (22) are rotatably connected in each sinking groove (6), and the second top plate (22) is supported by each roller wheel (61).

6. The billet heating and discharging mechanism according to claim 1, characterized in that: Two through grooves (212) are arranged in parallel and distributed on both sides of the axial direction of the hydraulic cylinder (3), and a pulley (213) is rotatably connected in each through groove (212).

7. The billet heating and discharging mechanism according to claim 1, wherein: A rib plate (31) is connected between the piston rod of the hydraulic cylinder (3) and the first top plate (21).

8. The billet heating and discharging mechanism according to claim 1, characterized in that: A push plate (221) is connected to the second end of the second top plate (22), and the bottom surface of the push plate (221) is flush with the bottom of the heating furnace (7).

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