Hot rolled steel plate processing trimming machine

Abstract

The present invention relates to the technical field of hot-rolled steel plates, and discloses a hot-rolled steel plate processing trimming machine, comprising an installation unit, a transmission unit and a drive unit, wherein the installation unit comprises a workbench, support frames are fixedly installed around the workbench, a top plate is fixedly installed above four support frames, a rectangular notch is provided on the workbench, and a hydraulic cylinder is arranged at the bottom of the top plate. According to the present invention, when the turntable rotates, it can drive the fixed plate to rotate, when the fixed plate rotates, it can drive the positioning plate, when the positioning plate rotates, it drives the second rotating rod to rotate, when the second rotating rod rotates, it can drive the round-shaped placement frame to rotate, when the round-shaped placement frame rotates, it can drive the sliding placement block to rotate, when the sliding placement block rotates, it can drive the hot-rolled steel plate to change the surface, so that when the threaded sleeve is reset, it can drive the hot-rolled steel plate whose surface has been changed to move, and perform trimming again.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-rolled steel plates, and in particular relates to a hot-rolled steel plate processing and trimming machine. Background Art

[0002] Hot rolled steel plates are made of continuous casting slabs or initial rolled slabs as raw materials. After the heating process and descaling process, they enter the rough rolling mill. The rough rolled material undergoes head cutting, tail cutting and other processes, and then is placed in the finishing mill for computer-controlled rolling. After the final rolling, it goes through the cooling process and coiling process to become a straight coil. The head and tail of the straight coil are often tongue-shaped and fishtail-shaped, with poor thickness and width accuracy, and the edges often have defects such as wave shape, folded edge, and tower shape. Generally speaking, the wave shape, folded edge, and tower shape defects on the edges need to be cut off by the cutting device of the hot rolled steel plate. After the straight coil is processed by head cutting, tail cutting, edge cutting and multiple straightening, flattening and other finishing lines, it is cut into plates or re-rolled to become: hot rolled steel plates, flat hot rolled steel coils, longitudinally cut strips and other products.

[0003] However, in the existing process of trimming the hot-rolled steel plate, after trimming one edge, the hot-rolled steel plate needs to be taken out, and then the surface needs to be changed and trimming is continued, which makes the trimming process more troublesome.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A hot-rolled steel plate processing trimming machine comprises an installation unit, a transmission unit and a driving unit, wherein the installation unit comprises a workbench, support frames are fixedly installed on all sides above the workbench, top plates are fixedly installed on four support frames, a rectangular notch is opened on the workbench, a hydraulic cylinder is arranged at the bottom of the top plate, a mounting bracket is arranged at the bottom of the hydraulic cylinder, a trimming assembly is arranged in the mounting bracket, a sliding placement block is also slidably arranged above the workbench, a hot-rolled steel plate is placed above the sliding placement block, a circular placement frame is fixedly installed on one side wall of the sliding placement block, an inclined sealing plate is arranged at the bottom of the circular placement frame, first rotating rods are fixedly installed on two opposite side walls of the inclined sealing plate, the other ends of the two first rotating rods are rotatably connected to the two opposite side walls of the circular placement frame, and a positioning plate is also fixedly installed above the workbench;

[0007] The driving unit comprises a first mounting block and a second mounting block, wherein the first mounting block and the second mounting block are respectively mounted on two opposite side walls of the inner cavity of the workbench, a connecting rod and a special-shaped plate are fixedly mounted on one side wall of the first mounting block, and a first limiting plate and a second limiting plate are fixedly mounted on one side wall of the second mounting block;

[0008] The transmission unit comprises a driving assembly, and the driving assembly is used to drive the sliding placement block to move horizontally. When the driving assembly and the driving unit cooperate, they are used to drive the sliding placement block to rotate.

[0009] As a preferred embodiment of the present invention, the driving assembly includes a servo motor, which is installed on the outer wall of the workbench. A threaded rod is fixedly installed on the output end of the servo motor, and the threaded rod moves through the workbench. A bearing is arranged at the other end of the threaded rod, and the bearing is arranged on the inner wall of the workbench.

[0010] As a preferred embodiment of the present invention, a threaded sleeve is meshedly installed on the threaded rod, and a first sliding mechanism is arranged at the bottom of the threaded sleeve. The first sliding mechanism includes a first slide groove, and the first slide groove is opened at the bottom of the inner cavity of the workbench. A first slider is slidably installed in the inner cavity of the first slide groove, and one end of the first slider away from the first slide groove is connected to the threaded sleeve.

[0011] As a preferred embodiment of the present invention, a concave plate is fixedly installed above the threaded sleeve, a damping bearing is arranged in the middle of the bottom of the concave plate, a rotating rod is arranged in the inner cavity of the damping bearing, four limiting holes distributed in a circumference are opened on the rotating rod, and a turntable is fixedly installed above the rotating rod.

[0012] As a preferred embodiment of the present invention, a fixed plate is fixedly installed above the turntable, a rotating rod is fixedly installed in the middle of the turntable, a positioning block is fixedly installed above the rotating rod, a second rotating rod is fixedly installed above the positioning block, the second rotating rod is movable through the rectangular slot, and an inclined sealing plate is fixedly connected to the upper end of the second rotating rod.

[0013] As a preferred embodiment of the present invention, a side plate is fixedly mounted on one side wall of the concave plate, a third sliding groove is opened on one side wall of the side plate, and a third sliding block is slidably mounted in the inner cavity of the third sliding groove.

[0014] As a preferred embodiment of the present invention, a movable slot is provided in the inner cavity of the third slide groove, a mounting block is provided in the inner cavity of the movable slot, and one end of the mounting block is fixedly connected to the third sliding block.

[0015] As a preferred embodiment of the present invention, a movable rod is movably installed at one end of the mounting block, a limiting rod is movably installed at the other end of the movable rod, and second sliding mechanisms are provided on two opposite side walls of the limiting rod, and the limiting rod and the limiting hole fit together.

[0016] As a preferred embodiment of the present invention, the second sliding mechanism includes two second sliding grooves, and two second sliding blocks are slidably installed in the inner cavities of the two second sliding grooves. Each of the second sliding blocks is symmetrical to each other, and the opposite ends of the four second sliding blocks are fixedly connected to the movable rod.

[0017] As a preferred embodiment of the present invention, one side wall of the inner cavity of the two second slide grooves is fixedly connected with a return spring, and the other ends of the two return springs are fixedly connected to the second sliding block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When the second rotating rod rotates, it can drive the circular placement rack to rotate, and when the circular placement rack rotates, it can drive the sliding placement block to rotate, and when the sliding placement block rotates, it can drive the hot-rolled steel plate to change the surface, so that when the threaded sleeve is reset, it can drive the hot-rolled steel plate whose surface has been changed to move for cutting the edge again.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the attached picture:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a hot-rolled steel plate processing trimming machine;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of a workbench of a hot-rolled steel plate processing trimming machine;

[0024] Figure 3 This is a schematic diagram of the inner structure of a workbench of a hot-rolled steel plate processing trimming machine;

[0025] Figure 4 It is a schematic diagram of the right side structure of the inner cavity of a workbench of a hot-rolled steel plate processing trimming machine;

[0026] Figure 5 It is a schematic diagram of the left side structure of the inner cavity of a workbench of a hot-rolled steel plate processing trimming machine;

[0027] Figure 6 It is a schematic diagram of the partial structure of the inner cavity of a workbench of a hot-rolled steel plate processing trimming machine;

[0028] Figure 7 The figure is a schematic diagram of the structure of an inclined sealing plate of a hot-rolled steel plate processing and trimming machine.

[0029] In the figure:

[0030] 100, mounting unit; 101, workbench; 1011, support frame; 1012, top plate; 1013, rectangular notch; 102, hydraulic cylinder; 1021, mounting bracket; 1022, trimming assembly; 103, positioning plate; 104, sliding placement block; 1041, hot-rolled steel plate; 1042, round-shaped placement frame; 1043, inclined sealing plate; 1044, first rotating rod;

[0031] 200, transmission unit; 201, servo motor; 2011, threaded rod; 2012, bearing; 2013, threaded sleeve; 202, first slide; 2021, first slider; 203, concave plate; 2031, second slide; 2032, second slider; 2033, return spring; 2034, limit rod; 204, rotating rod; 2041, damping bearing; 2042, limit hole; 2043, turntable; 2044, fixed plate; 2045, rotating rod; 2046, positioning block; 2047, second rotating rod; 205, side plate; 2051, third slide; 2052, third slider; 2053, moving notch; 2054, mounting block; 2055, movable rod;

[0032] 400, driving unit; 401, first mounting block; 4011, connecting rod; 4012, special-shaped plate; 402, second mounting block; 4021, first limiting plate; 4022, second limiting plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0034] Embodiment 1:

[0035] like Figures 1 to 7As shown, a hot-rolled steel plate processing trimming machine includes an installation unit 100, a transmission unit 200 and a drive unit 400. The installation unit 100 includes a workbench 101. Support frames 1011 are fixedly installed around the top of the workbench 101. A top plate 1012 is fixedly installed above the four support frames 1011. A rectangular notch 1013 is opened on the workbench 101. A hydraulic cylinder 102 is arranged at the bottom of the top plate 1012. A mounting bracket 1021 is arranged at the bottom of the hydraulic cylinder 102. A trimming assembly 1022 is arranged in the mounting bracket 1021. A sliding placement block 104 is also slidably arranged above the workbench 101. A hot-rolled steel plate 1041 is placed above the sliding placement block 104. A side wall of the sliding placement block 104 is fixedly installed with a circular placement frame 1042. An inclined sealing plate 1043 is arranged at the bottom of the circular placement frame 1042. The inclined sealing plate 1043 is arranged at the bottom of the circular placement frame 1042. 043 is fixedly installed with a first rotating rod 1044 on the two opposite side walls, and the other ends of the two first rotating rods 1044 are rotatably connected to the two opposite side walls of the circular placement frame 1042, and a positioning plate 103 is also fixedly installed above the workbench 101; the driving unit 400 includes a first mounting block 401 and a second mounting block 402, and the first mounting block 401 and the second mounting block 402 are respectively installed on the two opposite side walls of the inner cavity of the workbench 101, and a connecting rod 4011 and a special-shaped plate 4012 are fixedly installed on one side wall of the first mounting block 401, and a first limiting plate 4021 and a second limiting plate 4022 are fixedly installed on one side wall of the second mounting block 402; the transmission unit 200 includes a driving component, and the driving component is used to drive the sliding placement block 104 to move horizontally, and when the driving component and the driving unit 400 cooperate, it is used to drive the sliding placement block 104 to rotate. When the concave plate 203 continues to move, the connecting rod 4011 provided on the first mounting block 401 will be able to squeeze the fixed plate 2044 to drive the turntable 2043 to rotate with the assistance of the rotating rod 204. When the turntable 2043 rotates, it will be able to drive the fixed plate 2044 to rotate. When the fixed plate 2044 rotates, it will be able to drive the positioning block 2046. When the positioning block 2046 rotates, it will drive the second rotating rod 2047 to rotate. When the second rotating rod 2047 rotates, it will be able to drive the circular placement rack 1042 to rotate. When the circular placement rack 1042 rotates, it will be able to drive the sliding placement block 104 to rotate. When the sliding placement block 104 rotates, it will be able to drive the hot-rolled steel plate 1041 to change the surface. Therefore, when the threaded sleeve 2013 is reset, it will be able to drive the hot-rolled steel plate 1041 whose surface has been changed to move for re-cutting.

[0036] like Figures 1 to 6As shown, in a specific embodiment, the driving assembly includes a servo motor 201, which is mounted on the outer wall of the workbench 101, and a threaded rod 2011 is fixedly mounted on the output end of the servo motor 201, and the threaded rod 2011 movably penetrates the workbench 101, and a bearing 2012 is arranged at the other end of the threaded rod 2011, and the bearing 2012 is arranged on the inner wall of the workbench 101. In this arrangement, when the servo motor 201 is running, it can drive the threaded rod 2011 to rotate, and when the threaded rod 2011 rotates, it can drive the threaded sleeve 2013 to move horizontally with the assistance of the first slide groove 202 and the first slider 2021 in the first sliding mechanism.

[0037] like Figures 2 to 6 As shown, further, a threaded sleeve 2013 is meshedly mounted on the threaded rod 2011, a first sliding mechanism is arranged at the bottom of the threaded sleeve 2013, the first sliding mechanism comprises a first slide groove 202, the first slide groove 202 is arranged at the bottom of the inner cavity of the workbench 101, a first slider 2021 is slidably mounted in the inner cavity of the first slide groove 202, and one end of the first slider 2021 away from the first slide groove 202 is connected to the threaded sleeve 2013. In this configuration, the installation position and components of the first sliding mechanism are determined, ensuring that the threaded sleeve 2013 can move horizontally with the assistance of the first slider 2021 and the first slide groove 202.

[0038] like Figures 2 to 6 As shown, further, a concave plate 203 is fixedly installed above the threaded sleeve 2013, a damping bearing 2041 is arranged in the middle of the bottom of the concave plate 203, a rotating rod 204 is arranged in the inner cavity of the damping bearing 2041, four limiting holes 2042 arranged in a circumferential distribution are opened on the rotating rod 204, and a rotating disk 2043 is fixedly installed above the rotating rod 204. In this configuration, the installation position of the concave plate 203 and the components of the inner cavity of the concave plate 203 are determined, ensuring that when the concave plate 203 moves, it can drive the damping bearing 2041 and the rotating rod 204 to move horizontally.

[0039] like Figures 2 to 6As shown, further, a fixed plate 2044 is fixedly installed above the turntable 2043, a rotating rod 2045 is fixedly installed in the middle of the turntable 2043, a positioning block 2046 is fixedly installed above the rotating rod 2045, a second rotating rod 2047 is fixedly installed above the positioning block 2046, the second rotating rod 2047 is movable through the rectangular groove 1013, and the upper end of the second rotating rod 2047 is fixedly connected to the inclined sealing plate 1043. In this setting, the installation position and components of the inclined sealing plate 1043 are determined to ensure that when the fixed plate 2044 rotates, it will be able to drive the positioning block 2046, and when the positioning block 2046 rotates, it will drive the second rotating rod 2047 to rotate, and when the second rotating rod 2047 rotates, it will be able to drive the circular placement rack 1042 to rotate, and when the circular placement rack 1042 rotates, it will be able to drive the sliding placement block 104 to rotate, and when the sliding placement block 104 rotates, it will be able to drive the hot-rolled steel plate 1041 to change the surface. At the same time, when the circular placement rack 1042 and the inclined sealing plate 1043 move to a certain position, the inclined sealing plate 1043 will be able to leave the top of the positioning plate 103. Therefore, the inclined sealing plate 1043 can be rotated with the assistance of the first rotating rod 1044, so that the inclined sealing plate 1043 can be opened, so that the debris falling from the inner cavity of the circular placement rack 1042 can fall out along the inclined sealing plate 1043.

[0040] Embodiment 2:

[0041] The difference between the above embodiment and this embodiment is that: Figures 2 to 6 As shown, a hot-rolled steel plate processing trimming machine, a side plate 205 is fixedly installed on one side wall of the concave plate 203, a third slide groove 2051 is opened on one side wall of the side plate 205, and a third slider 2052 is slidably installed in the inner cavity of the third slide groove 2051. In this configuration, the installation position and components of the third sliding mechanism are determined, ensuring that when the concave plate 203 continues to move, the third slider 2052 will be able to move vertically upward with the assistance of the third slide groove 2051 under the extrusion force of the special-shaped plate 4012.

[0042] like Figures 2 to 6 As shown, in a specific embodiment, a movable slot 2053 is provided in the inner cavity of the third slide groove 2051, and a mounting block 2054 is provided in the inner cavity of the movable slot 2053, and one end of the mounting block 2054 is fixedly connected to the third slider 2052. In this configuration, the mounting position and components of the mounting block 2054 are determined, ensuring that when the mounting block 2054 moves vertically upward, the movable rod 2055 can pull the limiting rod 2034 to move horizontally with the assistance of the second slide groove 2031 and the second slider 2032.

[0043] like Figures 2 to 6As shown, further, a movable rod 2055 is movably mounted on one end of the mounting block 2054, and a limiting rod 2034 is movably mounted on the other end of the movable rod 2055. The two opposite side walls of the limiting rod 2034 are provided with a second sliding mechanism, and the limiting rod 2034 and the limiting hole 2042 fit each other. In this arrangement, it is ensured that the movable rod 2055 can drive the limiting rod 2034 to move, and when the limiting rod 2034 can move horizontally with the assistance of the second slide groove 2031 and the second slider 2032, the limiting rod 2034 can move out of the limiting hole 2042 provided in the rotating rod 204, so that the rotating rod 204 can rotate.

[0044] like Figures 2 to 6 As shown, further, the second sliding mechanism includes two second slide grooves 2031, and two second sliders 2032 are slidably installed in the inner cavities of the two second slide grooves 2031, and each second slider 2032 is symmetrical to each other, and one end of the four second sliders 2032 opposite to each other is fixedly connected to the movable rod 2055. In this configuration, the installation position and components of the second sliding mechanism are determined, ensuring that the limit rod 2034 can move horizontally with the assistance of the second slide groove 2031 and the second slider 2032.

[0045] like Figures 2 to 6 As shown, further, one side wall of the inner cavity of the two second slide grooves 2031 is fixedly connected with a return spring 2033, and the other ends of the two return springs 2033 are fixedly connected to the second slider 2032. In this configuration, the installation position and components of the return spring 2031 are determined.

[0046] The implementation principle of a hot-rolled steel plate processing trimming machine of this embodiment is as follows:

[0047] First, the staff places the hot-rolled steel plate 1041 on the sliding placement block 104, and then positions the hot-rolled steel plate 1041 from above by means of a clamping assembly (the clamping assembly is a prior art). When the hot-rolled steel plate 1041 is limited, the staff starts the servo motor 201. When the servo motor 201 is running, it can drive the threaded rod 2011 to rotate. When the threaded rod 2011 rotates, it can drive the threaded sleeve 2013 to move horizontally with the assistance of the first slide groove 202 and the first slider 2021 in the first sliding mechanism.

[0048] When the threaded sleeve 2013 moves horizontally, it can drive the concave plate 203 to move horizontally. When the concave plate 203 moves horizontally, it can drive the internal components of the concave plate 203 to move as a whole, thereby driving the second rotating rod 2047 to move horizontally. Because the second rotating rod 2047 is movable and penetrates the rectangular notch 1013, the second rotating rod 2047 can drive the circular placement frame 1042 to move horizontally, thereby pulling the sliding placement block 104 to move horizontally through the circular placement frame 1042;

[0049] At this time, while the placement block 104 drives the hot-rolled steel plate 1041 to move, the trimming operation is performed through the trimming assembly 1022 .

[0050] When the concave plate 203 is moved to the leftmost side, the third slider 2052 provided on the side plate 205 fixedly installed on one side wall of the concave plate 203 will be able to be located on the special-shaped plate 4012 fixedly installed on one side wall of the first mounting block 401 of the driving unit 400. When the concave plate 203 continues to move, the third slider 2052 will be able to move vertically upward with the assistance of the third slide groove 2051 under the extrusion force of the special-shaped plate 4012. When the third slider 2052 moves vertically upward, it will be able to drive the mounting block 2054 to slide horizontally on the moving notch 2053. When the mounting block 2054 moves vertically upward, it will be able to pull the limiting rod 2034 through the movable rod 2055 to move horizontally with the assistance of the second slide groove 2031 and the second slider 2032. Therefore, the limiting rod 2034 can be moved out of the limiting hole 2042 opened in the rotating rod 204, so that the rotating rod 204 can rotate.

[0051] At this time, when the concave plate 203 continues to move, the connecting rod 4011 provided on the first mounting block 401 will be able to squeeze the fixed plate 2044 to drive the rotating disk 2043 to rotate with the assistance of the rotating rod 204. When the rotating disk 2043 rotates, it will be able to drive the fixed plate 2044 to rotate. When the fixed plate 2044 rotates, it will be able to drive the positioning block 2046. When the positioning block 2046 rotates, it will drive the second rotating rod 2047 to rotate. When the second rotating rod 2047 rotates, it will be able to drive the circular placement frame 1042 to rotate. When the circular placement frame 1042 rotates, it will be able to drive the sliding placement block 104 to rotate. When the sliding placement block 104 rotates, it will be able to drive the hot-rolled steel plate 1041 to change the surface. Therefore, when the threaded sleeve 2013 is reset, it will be able to drive the hot-rolled steel plate 1041 whose surface has been changed to move for another edge cutting.

[0052] When the threaded sleeve 2013 is reset, the first limiting plate 4021 provided on the second mounting block 402 can squeeze the second slider 2032, so that the second slider 2032 can move horizontally, thereby driving the limiting rod 2034 to leave the limiting hole 2042 provided on the rotating rod 204, thereby ensuring that the rotating rod 204 can rotate. At this time, the second limiting plate 4022 can squeeze the fixing plate 2044 to drive the rotating disk 2043 to rotate with the assistance of the rotating rod 204. When the rotating disk 2043 rotates When the fixed plate 2044 rotates, it will be able to drive the positioning block 2046 to rotate. When the positioning block 2046 rotates, it will drive the second rotating rod 2047 to rotate. When the second rotating rod 2047 rotates, it will be able to drive the circular placement rack 1042 to rotate. When the circular placement rack 1042 rotates, it will be able to drive the sliding placement block 104 to rotate. When the sliding placement block 104 rotates, it will be able to drive the hot-rolled steel plate 1041 to change the surface.

Claims

1. A hot-rolled steel plate processing and trimming machine, comprising a mounting unit (100), a transmission unit (200) and a drive unit (400), characterized in that: The mounting unit (100) comprises a workbench (101), support frames (1011) are fixedly mounted on the four sides of the workbench (101), top plates (1012) are fixedly mounted on the four support frames (1011), a rectangular notch (1013) is provided on the workbench (101), a hydraulic cylinder (102) is arranged at the bottom of the top plate (1012), a mounting bracket (1021) is arranged at the bottom of the hydraulic cylinder (102), a trimming assembly (1022) is arranged in the mounting bracket (1021), and a sliding member (1022) is also slidably arranged above the workbench (101). A placement block (104), a hot-rolled steel plate (1041) is placed above the sliding placement block (104), a circular placement frame (1042) is fixedly installed on one side wall of the sliding placement block (104), an inclined sealing plate (1043) is arranged at the bottom of the circular placement frame (1042), first rotating rods (1044) are fixedly installed on two opposite side walls of the inclined sealing plate (1043), the other ends of the two first rotating rods (1044) are rotatably connected to the two opposite side walls of the circular placement frame (1042), and a positioning plate (103) is also fixedly installed above the workbench (101); The driving unit (400) comprises a first mounting block (401) and a second mounting block (402), wherein the first mounting block (401) and the second mounting block (402) are respectively mounted on two opposite side walls of the inner cavity of the workbench (101), a connecting rod (4011) and a special-shaped plate (4012) are fixedly mounted on one side wall of the first mounting block (401), and a first limiting plate (4021) and a second limiting plate (4022) are fixedly mounted on one side wall of the second mounting block (402); The transmission unit (200) comprises a driving component, the driving component is used to drive the sliding placement block (104) to move horizontally, and the driving component and the driving unit (400) are used to drive the sliding placement block (104) to rotate when they cooperate.

2. The hot rolled steel plate trimming machine according to claim 1, characterized in that: The driving assembly comprises a servo motor (201), the servo motor (201) being mounted on the outer wall of a workbench (101), a threaded rod (211) being fixedly mounted on the output end of the servo motor (201), the threaded rod (211) being movably inserted through the workbench (101), and a bearing (212) being arranged at the other end of the threaded rod (2011), the bearing (2012) being arranged on the inner wall of the workbench (101).

3. The hot rolled steel plate trimming machine according to claim 2, characterized in that: A threaded sleeve (2013) is meshedly mounted on the threaded rod (211), a first sliding mechanism is arranged at the bottom of the threaded sleeve (2013), the first sliding mechanism comprises a first slide groove (202), the first slide groove (202) is arranged at the bottom of the inner cavity of the workbench (101), a first slider (2021) is slidably mounted in the inner cavity of the first slide groove (202), and an end of the first slider (2021) away from the first slide groove (202) is connected to the threaded sleeve (2013).

4. The hot rolled steel plate trimming machine according to claim 3, characterized in that: A concave plate (203) is fixedly mounted above the threaded sleeve (2013); a damping bearing (2041) is arranged in the middle of the bottom of the concave plate (203); a rotating rod (204) is arranged in the inner cavity of the damping bearing (2041); four limiting holes (2042) are arranged in a circumferential distribution on the rotating rod (204); and a rotating disk (2043) is fixedly mounted above the rotating rod (204).

5. The hot rolled steel plate trimming machine according to claim 4, characterized in that: A fixing plate (2044) is fixedly mounted above the rotating disk (2043); a rotating rod (2045) is fixedly mounted in the middle of the rotating disk (2043); a positioning block (2046) is fixedly mounted above the rotating rod (2045); a second rotating rod (2047) is fixedly mounted above the positioning block (2046); the second rotating rod (2047) movably passes through the rectangular notch (1013); and the upper end of the second rotating rod (2047) is fixedly connected to an inclined sealing plate (1043).

6. The hot rolled steel plate trimming machine according to claim 4, characterized in that: A side plate (205) is fixedly mounted on one side wall of the concave plate (203), a third sliding groove (2051) is opened on one side wall of the side plate (205), and a third sliding block (2052) is slidably mounted in the inner cavity of the third sliding groove (2051).

7. The hot rolled steel plate trimming machine according to claim 6, characterized in that: The inner cavity of the third sliding groove (2051) is provided with a movable notch (2053), and the inner cavity of the movable notch (2053) is provided with a mounting block (2054), and one end of the mounting block (2054) is fixedly connected to the third sliding block (2052).

8. The hot rolled steel plate trimming machine according to claim 7, characterized in that: A movable rod (2055) is movably mounted on one end of the mounting block (2054), a limiting rod (2034) is movably mounted on the other end of the movable rod (2055), second sliding mechanisms are provided on opposite side walls of the limiting rod (2034), and the limiting rod (2034) and the limiting hole (2042) fit together.

9. The hot-rolled steel plate trimming machine according to claim 8, characterized in that: The second sliding mechanism comprises two second sliding grooves (2031), and two second sliding blocks (2032) are slidably mounted in the inner cavities of the two second sliding grooves (2031), and each of the second sliding blocks (2032) is symmetrical to each other, and opposite ends of the four second sliding blocks (2032) are fixedly connected to the movable rod (2055).

10. The hot rolled steel plate trimming machine according to claim 9, characterized in that: A return spring (2033) is fixedly connected to one side wall of the inner cavity of the two second sliding grooves (2031), and the other ends of the two return springs (2033) are fixedly connected to the second sliding block (2032).

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