Steel plate cutting equipment facilitating removal of cutting scraps

Abstract

The invention discloses steel plate cutting equipment capable of conveniently removing cutting scraps in the technical field of metal cutting equipment. The steel plate cutting equipment comprises a bottom support, and a plasma cutting machine capable of moving in a three-axis mode is arranged above the bottom support; a fixedly-connected supporting frame is arranged at the top end of the bottom support, a fixedly-connected recycling box is arranged in the bottom support, and a first mounting box and a movable second mounting box which are fixedly connected are arranged above the supporting frame. The full-process waste slag automatic cleaning is achieved, manpower is liberated, the efficiency is improved, the equipment is integrated with an automatic slag cleaning system, after cutting is completed, large molten slag and sediment on the working table top can be automatically conveyed to a designated collecting box, continuity and automation of cutting production are achieved, and the effective working time of the equipment is greatly prolonged; and water / dry type quick switching can be realized, and the machine has two purposes and is extremely flexible.

Description

Technical Field

[0001] This invention relates to the field of metal cutting equipment technology, specifically to a steel plate cutting device that facilitates the removal of cutting debris. Background Technology

[0002] Steel plate cutting is a fundamental and crucial process in metal processing. Based on its principles and characteristics, it can be mainly divided into two categories: hot cutting and cold cutting.

[0003] Plasma cutting is a common thermal cutting method, widely used in the processing of medium and thin plates, such as chassis and cabinets, engineering machinery, steel structures, and sheet metal processing. Plasma cutting uses a plasma arc generator to ionize gas into a high-temperature, high-energy plasma arc, which instantly melts the metal and is then blown away by a high-speed airflow. Plasma cutting is fast, can cut various conductive metals, has a wide range of cutting thicknesses, and its precision and cut quality are superior to flame cutting.

[0004] Traditional plasma cutting methods have revealed the following insurmountable drawbacks in long-term use: Traditional equipment has a fixed design from the outset. Waterbed equipment cannot cut plates that need to be kept dry, such as thick carbon steel plates that are prone to rusting or require subsequent welding. Dry equipment faces enormous environmental pressure when cutting materials such as stainless steel and aluminum, which generate large amounts of toxic fumes. Customers often need to prepare two machines depending on the material, resulting in high investment and land costs. After prolonged use, the water in the waterbed becomes turbid, rich in metal particles and oil, turning into "stinky water." This not only reduces dust suppression effectiveness, but the turbid water vapor also affects the stability of the plasma arc and cutting quality, while corroding equipment components. Regularly changing the water is a heavy logistical task. After cutting, suspended slag (debris) adheres to the cut surfaces of parts and remaining sheet metal. Current technology lacks any automatic cleaning capability, requiring workers to perform secondary processing such as hammering and grinding. This is a bottleneck in the production process that is considered "inevitable," significantly hindering overall efficiency.

[0005] In response to this situation, the present invention proposes a steel plate cutting device that facilitates the removal of cutting debris. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a steel plate cutting device that facilitates the removal of cutting waste, so as to solve the problems mentioned in the background art.

[0007] The objective of this invention can be achieved through the following technical solutions: A steel plate cutting device that facilitates the removal of cutting debris includes a bottom support, and a plasma cutter capable of three-axis movement is mounted above the bottom support; The bottom support is provided with a fixed support frame at the top, a fixed recycling bin is provided inside the bottom support, and a fixed first mounting box and a movable second mounting box are provided above the support frame.

[0008] Preferably, the upper end of the support frame is provided with arrayed partition plates, and the bottom ends of both sides of the partition plates are provided with welded inclined guide edges. The partition plates support the steel plates that need to be cut, and the support frame is fixed to the top of the recycling bin and communicates with it.

[0009] Preferably, the second mounting box moves along the partition to clean up waste, the first mounting box is provided with a fixedly connected first electric slide, the second mounting box is provided with a fixedly connected movable frame, the movable frame is slidably engaged with the first mounting box, and the sliding end of the first electric slide is fixedly connected to the movable frame.

[0010] Preferably, the movable frame has a first support and a second support fixedly connected inside. The second support is installed below the first support. The first support has an array of spray nozzles. The spray nozzles are installed between the array of partition plates. Below the second support, there is an array of third supports. The third supports are located directly above the partition plates. The third support has a rotatable upper scraper and a side scraper inside. The upper scraper has a first torsion spring at its rotation point, and the side scraper has a second torsion spring at its rotation point. The first torsion spring causes the upper scraper head to tilt and contact the upper end of the partition plate, and the second torsion spring causes the side scraper head to tilt and contact the side of the partition plate and the inclined guide edge.

[0011] Preferably, the recycling bin is provided with a first cavity, a second cavity and a third cavity. The third cavity is above the first cavity and the second cavity. The bottom of the second cavity is composed of a long horizontal surface and an inclined long slope. One end of the long horizontal surface is provided with a first drain outlet. The connection between the long horizontal surface and the long slope is provided with a second drain outlet. The side of the second cavity is provided with a water inlet.

[0012] Preferably, a sliding groove is provided at the connection between the third cavity and the first and second cavities, and a partition plate is inserted into the bottom of the third cavity through the sliding groove to completely separate the third cavity. An exhaust vent is provided on the side of the third cavity.

[0013] Preferably, the first cavity is provided with a fixedly connected second electric slide, the second cavity is provided with a movable fourth support and a long scraper, the second electric slide drives the fourth support to move, and there are arrayed elastic telescopic columns between the fourth support and the long scraper, one end of the elastic telescopic column is fixedly connected to the lower end of the fourth support, and the other end of the elastic telescopic column is fixedly connected to the upper end of the long scraper, and the blade head of the long scraper contacts the long horizontal surface and the long inclined surface.

[0014] Preferably, the second cavity is provided with a floating material discharge box on the outer side away from the first cavity, and the floating material discharge box is provided with a rotatable first sealing door and a first electric cylinder. The first electric cylinder can pull the first sealing door to open and close.

[0015] Preferably, a fixedly connected bottom waste discharge box is provided below the long inclined surface. The bottom waste discharge box is equipped with a rotatable second sealing door and a second electric cylinder. The bottom of the bottom waste discharge box is equipped with a waste guide groove. The second electric cylinder can pull the second sealing door to open and close.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention provides a steel plate cutting equipment that facilitates the removal of cutting waste. It realizes the automatic cleaning of waste slag throughout the entire process, freeing up manpower and improving efficiency. The equipment integrates an automatic slag removal system, which can automatically transport large pieces of molten slag and sediment on the worktable to a designated collection box after cutting. This realizes the continuous and automated cutting production and greatly improves the effective working time of the equipment.

[0017] 2. The present invention provides a steel plate cutting device that facilitates the removal of cutting waste. It can quickly switch between water / dry modes, making it a dual-purpose and highly flexible machine. Operators can easily switch between water bed mode and dry mode. One machine can meet the cutting needs of all materials. When cutting thick carbon steel plates, use the dry mode to avoid rusting of the workpiece. When cutting stainless steel and aluminum, switch to water bed mode to perfectly suppress smoke and dust.

[0018] 3. The present invention provides a steel plate cutting equipment that facilitates the removal of cutting waste, optimizes the dynamic management of the waterbed, maintains water quality, reduces maintenance frequency, and can separately discharge oily and smelly water from the upper surface of the waterbed, extending the water change cycle, maintaining the stability of the cutting environment and the consistency of cutting quality, while reducing equipment corrosion and lowering long-term operation and maintenance costs.

[0019] 4. The present invention provides a steel plate cutting equipment that facilitates the removal of cutting waste by integrating an adhesive waste removal function. This device can automatically perform the adhesive waste removal operation, eliminating the need for a separate subsequent slag removal process, making the cutting and subsequent processing seamlessly connected, greatly optimizing the production cycle, and reducing secondary handling and manpower input. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the structure of a steel plate cutting device that facilitates the removal of cutting waste in an embodiment of the present invention; Figure 2 This is a front view schematic diagram of the structure of a steel plate cutting device that facilitates the removal of cutting waste in an embodiment of the present invention; Figure 3 This is a schematic cross-sectional view of the structure of a steel plate cutting device that facilitates the removal of cutting waste in an embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic cross-sectional view of the structure of a steel plate cutting device that facilitates the removal of cutting waste in an embodiment of the present invention. Figure 2 ; Figure 5 This is the present invention. Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the structure of the third support in an embodiment of the present invention; Figure 7 This is the present invention. Figure 3 Enlarged schematic diagram of the structure at point B; Figure 8 This is the present invention. Figure 4 Enlarged schematic diagram of the structure at point C; Figure 9 This is the present invention. Figure 4 Enlarged schematic diagram of the structure at point D; In the diagram: 1. Bottom support; 2. Horizontal support; 3. Vertical support; 4. Plasma cutter; 5. Support frame; 6. First mounting box; 7. Second mounting box; 8. Recycling box; 51. Divider plate; 61. First electric slide; 71. Moving frame; 72. First support; 73. Spray nozzle; 74. Second support; 75. Third support; 81. First cavity; 82. Second cavity; 83. Long scraper; 84. Elastic telescopic column; 85. Third cavity; 86. Water inlet; 87. First drain outlet; 88 8. Second drain outlet; 89. Settled waste discharge box; 511. Inclined guide edge; 851. Slide chute; 751. Upper scraper; 752. Side scraper; 801. Long horizontal surface; 802. Long inclined surface; 811. Second electric slide table; 821. Fourth bracket; 822. Floating material discharge box; 823. First sealing door; 824. First electric cylinder; 852. Exhaust vent; 891. Second sealing door; 892. Waste guide chute; 893. Second electric cylinder; 7511. First torsion spring; 7521. Second torsion spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 9 As shown, this embodiment provides a steel plate cutting device that facilitates the removal of cutting waste. The steel plate cutting device includes a bottom support 1, a movable transverse support 2 above the bottom support 1, a movable longitudinal support 3 above the transverse support 2, and a plasma cutter 4 that can be raised and lowered on the longitudinal support 3. The transverse support 2 is guided to slide along the bottom support 1 via a slide rail slider assembly. The movement of the transverse support 2 is driven by rack and pinion gear meshing. The longitudinal support 3 is guided to slide along the transverse support 2 via a slide rail slider assembly. The movement of the longitudinal support 3 is driven by rack and pinion gear meshing. The plasma cutter 4 is guided to slide along the longitudinal support 3 via a slide rail slider assembly. The movement of the plasma cutter 4 is driven by a lead screw. The plasma cutter 4 can move in three axes.

[0024] Furthermore, the bottom support 1 has a fixedly connected support frame 5 at its top, a fixedly connected recycling bin 8 inside the bottom support 1, and a fixedly connected first mounting box 6 and a movable second mounting box 7 above the support frame 5.

[0025] Specifically, the upper end of the support frame 5 is provided with arrayed partition plates 51, and the bottom ends of both sides of the partition plates 51 are provided with welded inclined guide edges 511. The partition plates 51 support the steel plates that need to be cut. The support frame 5 is fixed to the top of the recycling bin 8 and connected to it. The second mounting box 7 moves along the partition plate 51 to clean up waste. The first mounting box 6 has a fixedly connected first electric slide 61 and slide rail slider assembly inside. The second mounting box 7 has a fixedly connected movable frame 71 inside. The movable frame 71 moves and is guided to the first mounting box 6 through the slide rail slider assembly. The sliding end of the first electric slide 61 is fixedly connected to the movable frame 71. The first electric slide 61 drives the movable frame 71 and the second mounting box 7 to move. The movable frame 71 has a first support 72 and a second support 74 fixedly connected inside. The second support 74 is installed below the first support 72. The first support 72 has an array of spray nozzles 73, which are installed between the array of partition plates 51. Below the second support 74 is an array of third supports 75, which are located directly above the partition plates 51. The third support 75 has a rotatable upper scraper 751 and a side scraper 752 inside. The upper scraper 751 has a first torsion spring 7511 at its rotation point, and the side scraper 752 rotates... The moving part is equipped with a second torsion spring 7521. The first torsion spring 7511 drives the upper scraper 751 to tilt and contact the upper end of the partition plate 51. The second torsion spring 7521 drives the side scraper 752 to tilt and contact the side of the partition plate 51 and the inclined guide edge 511. When the moving frame 71 moves, it drives the first support 72, the second support 74, the spray nozzle 73, the upper scraper 751 and the side scraper 752 to move forward synchronously along the partition plate 51. The upper scraper 751 and the side scraper 752 scrape off the waste from the partition plate 51 and the inclined guide edge 511. The spray nozzle 73 can perform side rinsing.

[0026] Furthermore, the recycling bin 8 is provided with a first cavity 81, a second cavity 82 and a third cavity 85. The third cavity 85 is above the first cavity 81 and the second cavity 82. The bottom end of the second cavity 82 is formed by bending a long horizontal surface 801 and an inclined long slope 802. One end of the long horizontal surface 801 is provided with a first drain outlet 87. The connection between the long horizontal surface 801 and the long slope 802 is provided with a second drain outlet 88. The side of the second cavity 82 is provided with a water inlet 86. A groove 851 is provided at the connection between the third cavity 85 and the first cavity 81 and the second cavity 82. The partition plate is inserted into the bottom of the third cavity 85 through the groove 851, thereby completely separating the third cavity 85. An exhaust port 852 is provided on the side of the third cavity 85. The first cavity 81 is provided with a fixedly connected second electric slide 811. The second cavity 82 is provided with a movable fourth support 821 and a long scraper 83. One end of the fourth support 821 is slidably engaged with the second cavity 82, and the other end of the fourth support 821 is fixedly connected to the sliding end of the second electric slide 811. The second electric slide 811 drives the fourth support 821 to move. There are arrayed elastic telescopic columns 84 between the fourth support 821 and the long scraper 83. One end of the elastic telescopic column 84 is fixedly connected to the lower end of the fourth support 821, and the other end of the elastic telescopic column 84 is fixedly connected to the upper end of the long scraper 83. The blade of the long scraper 83 contacts the long horizontal surface 801 and the long inclined surface 802. The second cavity 82 is provided with a floating material discharge box 822 on the outer side away from the first cavity 81. The floating material discharge box 822 is provided with a rotatable first sealing door 823 and a first electric cylinder 824. The tail end of the first electric cylinder 824 is rotatably connected to the inside of the floating material discharge box 822, and the telescopic end of the first electric cylinder 824 is rotatably connected to the first sealing door 823. The first electric cylinder 824 can pull the first sealing door 823 to open and close. Below the long inclined plane 802, there is a fixedly connected bottom waste discharge box 89. Inside the bottom waste discharge box 89, there is a rotatable second sealing door 891 and a second electric cylinder 893. The bottom of the bottom waste discharge box 89 is provided with a waste guide groove 892. The tail end of the second electric cylinder 893 is rotatably connected to the bottom waste discharge box 89, and the telescopic end of the second electric cylinder 893 is rotatably connected to the second sealing door 891. The second electric cylinder 893 can pull the second sealing door 891 to open and close.

[0027] The working principle of a steel plate cutting device that facilitates the removal of cutting debris is as follows: When dry mode is required, the dust extraction equipment is connected to the exhaust port 852. The partition plate is inserted into the bottom of the third cavity 85 through the slide 851, thereby completely separating the third cavity 85. Then, the first electric slide 61 is started to drive the second mounting box 7 to move to the edge of the support frame 5. The robot or worker places the metal plate to be cut on the partition plate 51. The horizontal support 2, the vertical support 3, and the plasma cutter 4 move to cut the metal plate. The dust extraction equipment removes the cutting dust through the gap of the partition plate 51 and the third cavity 85. After the cutting is completed, the metal plate is removed. The moving frame 71 moves, causing the first support 72, the second support 74, the spray nozzle 73, the upper scraper 751 and the side scraper 752 to move forward synchronously along the partition plate 51. The upper scraper 751 and the side scraper 752 scrape off the waste from the partition plate 51 and the inclined guide edge 511. The waste falls onto the partition plate, and the partition plate is pulled out to complete the cleaning.

[0028] When the waterbed mode is required, seal the openings of the exhaust port 852, the first drain port 87, the second drain port 88, the first sealing door 823, the second sealing door 891, and the chute 851. Then, add liquid to the inside of the recovery tank 8 through the water inlet 86. Stop when the liquid in the recovery tank 8 exceeds the bottom of the first sealing door 823. Then, the first electric slide 61 starts and drives the second mounting box 7 to move to the edge of the support frame 5. The second electric slide 811 pulls the long scraper 83 and stops it at the end of the long horizontal surface 801 away from the long inclined surface 802. The robot or worker places the metal plate to be cut on the partition plate 51. The horizontal support 2, the vertical support 3, and the plasma cutter 4 move to cut the metal plate. The metal particles and oil produced by cutting fall into the recovery tank 8. After the cutting is completed, the metal plate is removed. The moving frame 71 moves, causing the first support 72, the second support 74, the spray nozzle 73, the upper scraper 751, and the side scraper 752 to move synchronously along the partition plate 51. The upper scraper 751 and the side scraper 752 scrape away the waste from the partition plate 51 and the inclined guide edge 511, while the spray nozzle 73 performs side rinsing. The waste falls onto the long horizontal surface 801 and the long inclined surface 802. After the equipment has been used for a period of time, the oil and foul-smelling water on the surface of the waterbed needs to be drained. The first electric cylinder 824 pulls the first sealing door 8. 23 is opened, and oily and foul-smelling water is discharged from the floating waste discharge box 822. When it is necessary to clean the waste inside the recycling box 8, first open the first drain port 87 and the second drain port 88 to discharge the internal liquid, then close the first drain port 87 and the second drain port 88. The second electric cylinder 893 pulls the second sealing door 891 to open, and the second electric slide 811 pulls the long scraper 83 forward to scrape the waste stuck and residual on the long horizontal surface 801 and the long inclined surface 802 forward and fall into the waste guide trough 892 for discharge.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A steel plate cutting device for easy removal of cutting waste, comprising a bottom support (1), characterized in that, A plasma cutter (4) capable of three-axis movement is provided above the bottom support (1). The bottom support (1) has a fixed support frame (5) at the top, a fixed recycling bin (8) inside the bottom support (1), and a fixed first mounting box (6) and a movable second mounting box (7) above the support frame (5).

2. The steel plate cutting equipment for easy removal of cutting waste as described in claim 1, characterized in that, The upper end of the support frame (5) is provided with arrayed partition plates (51), and the bottom ends of both sides of the partition plates (51) are provided with welded inclined guide edges (511). The partition plates (51) support the steel plates that need to be cut. The support frame (5) is fixed to the top of the recycling bin (8) and connected to it.

3. The steel plate cutting equipment for easy removal of cutting waste as described in claim 2, characterized in that, The second mounting box (7) moves along the partition plate (51) to clean up waste. The first mounting box (6) is provided with a fixedly connected first electric slide (61). The second mounting box (7) is provided with a fixedly connected movable frame (71). The movable frame (71) slides with the first mounting box (6). The sliding end of the first electric slide (61) is fixedly connected to the movable frame (71).

4. The steel plate cutting equipment for easy removal of cutting waste as described in claim 3, characterized in that, The movable frame (71) is internally provided with a first support (72) and a second support (74) fixedly connected. The second support (74) is installed below the first support (72). The first support (72) is provided with an array of spray nozzles (73), which are installed between the array of partition plates (51). Below the second support (74) is an array of third supports (75), which are located directly above the partition plates (51). The frame (75) is equipped with a rotatable upper scraper (751) and a side scraper (752). The upper scraper (751) is equipped with a first torsion spring (7511) at the rotation point, and the side scraper (752) is equipped with a second torsion spring (7521) at the rotation point. The first torsion spring (7511) drives the upper scraper (751) to tilt and contact the upper end of the partition plate (51), and the second torsion spring (7521) drives the side scraper (752) to tilt and contact the side of the partition plate (51) and the inclined guide edge (511).

5. A steel plate cutting device for easy removal of cutting waste as described in claim 4, characterized in that, The recycling bin (8) is provided with a first cavity (81), a second cavity (82) and a third cavity (85). The third cavity (85) is above the first cavity (81) and the second cavity (82). The bottom end of the second cavity (82) is composed of a long horizontal surface (801) and an inclined long slope (802). One end of the long horizontal surface (801) is provided with a first drain outlet (87) that is connected to it. The connection between the long horizontal surface (801) and the long slope (802) is provided with a second drain outlet (88) that is connected to it. The side of the second cavity (82) is provided with a water inlet (86).

6. A steel plate cutting device for easy removal of cutting waste chips according to claim 5, characterized in that, The third cavity (85) is provided with a sliding groove (851) at the connection between it and the first cavity (81) and the second cavity (82). The partition plate is inserted into the bottom of the third cavity (85) through the sliding groove (851) to completely separate the third cavity (85). The side of the third cavity (85) is provided with an exhaust port (852).

7. A steel plate cutting device for easy removal of cutting waste as described in claim 6, characterized in that, The first cavity (81) is provided with a fixedly connected second electric slide (811), and the second cavity (82) is provided with a movable fourth support (821) and a long scraper (83). The second electric slide (811) drives the fourth support (821) to move. An array of elastic telescopic columns (84) is provided between the fourth support (821) and the long scraper (83). One end of the elastic telescopic column (84) is fixedly connected to the lower end of the fourth support (821), and the other end of the elastic telescopic column (84) is fixedly connected to the upper end of the long scraper (83). The blade of the long scraper (83) contacts the long horizontal surface (801) and the long inclined surface (802).

8. A steel plate cutting device for easy removal of cutting waste chips according to claim 7, characterized in that, The second cavity (82) is provided with a floating material discharge box (822) on the outer side away from the first cavity (81). The floating material discharge box (822) is provided with a rotatable first sealing door (823) and a first electric cylinder (824). The first electric cylinder (824) can pull the first sealing door (823) to open and close.

9. A steel plate cutting device for easy removal of cutting waste as described in claim 8, characterized in that, Below the long inclined surface (802) is a fixedly connected bottom waste discharge box (89). The bottom waste discharge box (89) is equipped with a rotatable second sealing door (891) and a second electric cylinder (893). The bottom of the bottom waste discharge box (89) is equipped with a waste guide groove (892). The second electric cylinder (893) can pull the second sealing door (891) to open and close.

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