Flame cutting machine

By incorporating a water tank and filter plate structure into the flame cutting machine, the molten slag is collected using the movement of the cutting frame. This solves the problems of sparks and residue splashing and difficult cleaning, achieving effective cooling and collection of the molten slag, and improving the safety and ease of cleaning of the working environment.

CN120962043APending Publication Date: 2025-11-18HANGXIAO STEEL STRUCTURE (YUDU) CO LTD
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Patent Information

Application Number
CN202511278325.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Traditional flame cutting machines produce sparks and residues that easily splatter and cool into metallic impurities during cutting, making them difficult to clean and affecting the working environment.

Method used

A water tank is set up below the cutting machine frame. The filter plate in the water tank traps the molten slag. The movement of the cutting machine frame causes the filter plate to move up and down, collecting the molten slag to one side of the water tank, where it is collected by a collection component.

Benefits of technology

It effectively cools and collects molten slag, prevents slag splashing, simplifies the cleaning process, saves energy, and is environmentally friendly and efficient.

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Abstract

The invention discloses a flame cutting machine, and relates to the technical field of flame cutting machines, the flame cutting machine comprises a cutting rack driven by two sides, a cutting table for moving the cutting rack and a collecting assembly, a cutting machine body driven by a hydraulic gas circuit is fixedly arranged on the cutting rack, a water tank is arranged in the middle of the cutting table, and a filter plate is arranged in the water tank; the filter plate is obliquely arranged in a water body of the water tank and slidably connected with the interior of the water tank, a fixing frame is fixedly arranged at the top of the filter plate, a sliding rail is fixedly arranged at the top of the fixing frame, movable assemblies are arranged on the two sides of the interior of the cutting rack, and connecting bases are arranged on the outer sides of the movable assemblies and slidably arranged on the sliding rail. The water tank for containing water is arranged on the cutting table below the cutting rack, the water in the water tank is used for cooling molten slag generated during flame cutting, then the filter plate in the water tank is used for intercepting the molten slag, the movable assembly drives the filter plate to move up and down in the water tank, and the molten slag intercepted by the filter plate can be gradually collected to one side of the water tank; and the collecting assembly is used for collecting.
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Description

Technical Field

[0001] This invention relates to the field of flame cutting machine technology, specifically to a flame cutting machine. Background Technology

[0002] A flame cutting machine is a cutting device that uses gas mixed with oxygen or gasoline mixed with oxygen to cut metal materials. It is mainly used in heavy industry. A flame cutting machine generally includes a flame cutting head, a flame generating device, and a moving device. The cutting pattern can be programmed to cut various patterns.

[0003] Traditional flame cutting machines produce sparks and debris that fly out during flame cutting. These sparks and debris carry heat and can easily ignite combustible materials if they fall onto them. Furthermore, the sparks and debris can form metallic impurities after cooling, which are difficult to clean and affect the working environment. To address these issues, we propose a new type of flame cutting machine. Summary of the Invention

[0004] The purpose of this invention is to provide a flame cutting machine, which has the advantage of cooling and collecting the molten slag generated during flame cutting by using water. At the same time, the force of the cutting machine frame itself moving up and down drives the filter plate in the water tank to collect the molten slag on the filter plate to one side of the water tank, thus preventing the problem of molten slag splashing and being difficult to clean.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flame cutting machine, comprising a cutting frame with double-sided drive, a cutting table for the movement of the cutting frame, and a collection component. The cutting frame is fixedly equipped with a cutting machine body driven by a hydraulic air circuit. A water tank is provided in the middle of the cutting table, and a filter plate is provided in the water tank. The filter plate is inclinedly disposed in the water body of the water tank and is slidably connected to the inside of the water tank. A fixing frame is fixedly provided on the top of the filter plate, and a slide rail is fixedly provided on the top of the fixing frame. Movable components are provided on both sides inside the cutting frame, and connecting seats are provided on the outside of the movable components. The connecting seats are slidably disposed on the slide rail. The collection component for collecting the slag trapped by the filter plate is disposed in the water tank.

[0006] Preferably, the movable component includes a swing arm, a symmetrically distributed rack fixed on the top of the cutting table, rolling gears rotatably mounted on both sides inside the cutting frame, the rolling gears meshing with the racks, a rotating gear meshing with the outer side of the rolling gears, a symmetrically distributed rotating shaft rotatably mounted on the inner side of the cutting frame, the rotating gear fixed on the rotating shaft, an extension plate fixed on the outer side of the rotating shaft, an auxiliary shaft rotatably mounted on the outer end of the extension plate away from the rotating shaft, one end of the swing arm rotatably connected to the auxiliary shaft, and the other end of the swing arm rotatably connected to the connecting seat.

[0007] Preferably, the top of the connecting seat is fixedly provided with symmetrically distributed telescopic rods, and the top of the telescopic rods is fixedly connected to the support plate fixedly provided on the inner side of the cutting machine frame.

[0008] Preferably, an inclined block is fixed at the connection between the fixed frame and the filter plate, with the higher side of the inclined block located on the fixed frame and the lower side of the inclined block located on the filter plate.

[0009] Preferably, the periphery of the filter plate and the interior of the water tank are in a closed state, and the filter holes on the filter plate are perpendicular to the upper and lower surfaces of the filter plate.

[0010] Preferably, the collection assembly includes a collection box, a filter plate with an inclination angle of 15°, an opening at the bottom of the filter plate, a limiting plate fixedly installed in the opening, the limiting plate being slidably connected to the inside of the collection box, the collection box being fitted into a placement groove at the bottom of the water tank, a slot being provided on the outside of the cutting table, a sealing block being fitted into the slot, and one side of the collection box being fitted into the inside of the slot.

[0011] Preferably, the height of the limiting plate is greater than the vertical range of motion of the filter plate.

[0012] Preferably, the sealing block and the slot are connected by a sealing ring gasket.

[0013] Preferably, a support frame is fixedly provided on the top of the water tank, and the fixed frame is slidably connected to the outside of the support frame.

[0014] Preferably, the flame torch of the cutting machine body is set perpendicular to the surface of the water in the water tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention sets a water tank filled with water on the cutting table below the cutting machine frame. The water in the tank is used to cool the molten slag generated during flame cutting. The filter plate in the tank traps the molten slag. The filter plate moves up and down in the tank through a movable component, and the molten slag trapped by the filter plate can be gradually collected to one side of the tank and collected by a collection component.

[0016] 2. This invention employs a rolling gear that rolls on a rack on the cutting table as the cutting frame moves, driving the rotating gear and the extension plate on the rotating shaft to rotate around the shaft. This causes one end of the swing arm to rotate around the shaft via the extension plate, and the rigidity of the swing arm drives the connecting seat to move up and down. This, in turn, causes the filter plate to move up and down in the water tank via the fixed frame. Since the filter plate is inclined in the water tank, the up-and-down movement of the filter plate can gradually push the trapped slag into the collection box set on the lower side of the filter plate for collection.

[0017] 3. The movement of the filter plate of the present invention is driven by the back-and-forth movement of the cutting frame, without the need for an additional power source such as a motor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the active component structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the water tank of the present invention; Figure 4 This is a cross-sectional view of the internal structure of the water tank of the present invention; Figure 5 This is a schematic diagram of the grooved portion of the present invention; Figure 6 This is a cross-sectional view of the inclined block portion of the present invention; Figure 7 This is a cross-sectional schematic diagram of the filter plate structure of the present invention; Figure 8 for Figure 4 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Cutting machine frame; 2. Cutting machine body; 3. Cutting table; 4. Water tank; 5. Filter plate; 6. Fixed frame; 7. Slide rail; 8. Movable component; 9. Connecting seat; 10. Collection component; 11. Swing arm; 12. Rack; 13. Rolling gear; 14. Rotating gear; 15. Rotating shaft; 16. Extension plate; 17. Auxiliary shaft; 18. Telescopic rod; 19. Inclined block; 20. Collection box; 21. Opening; 22. Limiting plate; 23. Slot; 24. Sealing block; 25. Support frame. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figure 1 - Figure 8The illustrated flame cutting machine includes a cutting frame 1 with double-sided drive, a cutting table 3 for moving the cutting frame 1, and a collection component 10. The cutting frame 1 is fixedly equipped with a cutting machine body 2 driven by a hydraulic air circuit. The cutting table 3 has a water tank 4 in the middle. A support frame 25 is fixedly equipped on the top of the water tank 4. A fixed frame 6 is slidably connected to the outside of the support frame 25. The support frame 25 supports the metal plate being cut. The slag generated during cutting falls into the water tank 4 through the support frame 25. A filter plate 5 is provided in the water tank 4. The filter plate 5 is inclined in the water body of the water tank 4 and is slidably connected to the inside of the water tank 4. A fixed frame 6 is fixedly equipped on the top of the filter plate 5. A slide rail 7 is fixedly equipped on the top of the fixed frame 6. Movable components 8 are provided on both sides inside the cutting frame 1. A connecting seat 9 is provided on the outside of the movable components 8. The connecting seat 9 is slidably mounted on the slide rail 7. The collection component 10 for collecting the slag trapped by the filter plate 5 is located in the water tank 4. It should be noted that in this solution, a water tank 4 filled with water is set on the cutting table 3 below the cutting machine frame 1. The water in the water tank 4 is used to cool down the molten slag generated during flame cutting. The filter plate 5 in the water tank 4 is used to trap the molten slag. The filter plate 5 is moved up and down in the water tank 4 by the movable component 8, so that the molten slag trapped by the filter plate 5 can be gradually collected to one side of the water tank 4 and collected by the collection component 10.

[0022] For details, please refer to Figures 1-6 The active component 8 includes a swing arm 11, a symmetrically distributed rack 12 fixed on the top of the cutting table 3, rolling gears 13 rotatably provided on both sides inside the cutting frame 1, the rolling gears 13 meshing with the racks 12, a rotating gear 14 meshing with the outer side of the rolling gears 13, a symmetrically distributed rotating shaft 15 rotatably provided on the inner side of the cutting frame 1, the rotating gear 14 fixed on the rotating shaft 15, an extension plate 16 fixed on the outer side of the rotating shaft 15, an auxiliary shaft 17 rotatably provided at the outer end of the extension plate 16 away from the rotating shaft 15, one end of the swing arm 11 rotatably connected to the auxiliary shaft 17, and the other end of the swing arm 11 rotatably connected to the connecting seat 9. The top of the connecting seat 9 is fixedly provided with symmetrically distributed telescopic rods 18. The top of the telescopic rods 18 is fixedly connected to the support plate fixedly provided on the inner side of the cutting frame 1. The telescopic rods 18 are provided to limit the up and down movement of the connecting seat 9, ensuring that the movement trajectory of the connecting seat 9 is perpendicular to the cutting frame 1. It is worth noting that, reference Figure 2 , Figure 4 and Figure 8 As shown, an inclined block 19 is fixedly provided at the connection between the fixed frame 6 and the filter plate 5. The higher side of the inclined block 19 is located on the fixed frame 6, and the lower side of the inclined block 19 is located at the filter plate 5.

[0023] The principle of the moving component 8 driving the filter plate 5 to move up and down: First, during the cutting process, the cutting frame 1 drives the cutting machine body 2 to move back and forth on the cutting table 3. The rolling gear 13 set on the inner side of the cutting frame 1 rolls on the rack 12 set on the cutting table 3. The rolling gear 13 drives the rotating shaft 15 to rotate through the meshing with the rotating gear 14. The rotating shaft 15 drives the swing arm 11 and the end connected to the extension plate 16 to revolve around the rotating shaft 15 through the extension plate 16. Thus, the rigidity of the swing arm 11 drives the connecting seat 9 to move up and down, which in turn drives the fixed frame 6 connected to the connecting seat 9 to move up and down, thereby driving the filter plate 5 to move up and down in the water tank 4. The slag produced by the flame torch of the cutting machine body 2 cutting the metal plate is gradually pushed to the lower side of the filter plate 5.

[0024] At the same time, refer to Figure 5 and Figure 8 The collection assembly 10 includes a collection box 20, a filter plate 5 with an inclination angle of 15°, an opening 21 at the bottom of the filter plate 5, a limiting plate 22 fixedly installed in the opening 21, the limiting plate 22 being slidably connected to the inside of the collection box 20, the collection box 20 being fitted into the placement groove at the bottom of the water tank 4, a slot 23 being provided on the outside of the cutting table 3, a sealing block 24 being fitted into the slot 23, and one side of the collection box 20 being fitted into the inside of the slot 23. The height of the limiting plate 22 is greater than the vertical movement range of the filter plate 5, so as to prevent the limiting plate 22 from separating from the collection box 20 during the vertical movement of the filter plate 5, thereby ensuring that the molten slag can be collected in the collection box 20 for subsequent cleaning. It is worth noting that the sealing block 24 and the slot 23 are connected by a sealing ring gasket, which improves the sealing performance between the sealing block 24 and the slot 23, thereby preventing water in the water tank 4 from overflowing through the slot 23. The principle of slag collection component 10: First, since the filter plate 5 is inclined in the water tank 4, with an inclination angle of 15°, the gravity acting on the slag at this angle will have a component that falls downwards along the slope, allowing the slag to fall more quickly. Furthermore, the opening 21 of the filter plate 5 is located at its lower end. This means that as the filter plate 5 moves up and down, the slag trapped on it gradually falls through the opening 21 into the collection box 20. Due to the presence of the limiting plate 22, the filter plate 5 moves up and down... During the process, the limiting plate 22 will not detach from the collection box 20, thus ensuring that all the slag is collected in the collection box 20. After the device is used, drain the water in the water tank 4, then pull out the sealing block 24 to open the slot 23, lift the fixing frame 6 to drive the limiting plate 22 away from the collection box 20, pull out the collection box 20 through the slot 23, pour out the slag in the collection box 20, insert the collection box 20 back into the slot, and then lower the limiting plate 22 to complete the cleaning operation of the slag generated during flame cutting.

[0025] In this scheme, the metal plate to be cut is placed on the support frame 25, and the metal plate is cut by the flame torch of the cutting machine body 2. During this process, the slag produced by the flame torch is carried out by the high-speed gas and falls into the water in the water tank 4. The slag cools down quickly and becomes block particles, which fall onto the filter plate 5. During the process of the cutting frame driving the cutting machine body 2 to move back and forth on the cutting table 3 to cut the metal plate, the moving cutting frame drives the rolling gear 13 to roll on the rack 12 of the cutting table 3. Thus, the meshing of the rolling gear 13 and the rotating gear 14 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the extension plate 16 to rotate around the rotating shaft 15. Furthermore, the extension plate 16 drives one end of the swing arm 11 to revolve around the rotating shaft 15 through the auxiliary shaft 17. Utilizing the rigidity of the swing arm 11 and the limiting of the trajectory of the connecting seat 9 by the telescopic rod 18, the swing arm 11 drives the connecting seat 9 to move up and down. Thus, the filter plate 5 moves up and down in the water tank 4 through the fixed frame 6. As the filter plate 5 moves up and down intermittently with the movement of the cutting frame 1, the inclined filter plate 5 gradually pushes the slag trapped on the filter plate 5 to the opening 21 of the filter plate 5. The slag that reaches the opening 21 falls into the collection box 20 for collection. When the cutting operation is completed and enough slag has been collected in the collection box 20, drain the water from the water tank 4, then pull out the sealing block 24 in the slot 23, open the slot 23, pull the limiting plate 22 out of the collection box 20 by pulling the fixing bracket 6 upward, pull the collection box 20 out of the slot 23, pour out the slag collected in the collection box 20, and then put the collection box 20 back into the slot 23 to collect the slag generated by the next cutting operation.

[0026] This solution uses the power generated by the movement of the cutting frame 1 to drive the filter plate 5 to move up and down, without the need for an additional external electric or pneumatic power source, making it green, environmentally friendly, and energy-saving.

[0027] Example 2: Reference Figure 7 This embodiment further explains the first embodiment, and the difference lies in the optimization of the filter plate 5.

[0028] Specifically, the filter plate 5 is closed around the periphery and inside the water tank 4, and the filter holes on the filter plate 5 are perpendicular to the upper and lower surfaces of the filter plate 5. In this scheme, since the filter plate 5 is inclined in the water tank 4, the filter holes on the filter plate 5 are set to be perpendicular to the filter plate 5. This allows the filter holes to be inclined in the water body. As the filter plate 5 moves downward, when the water flow from the lower surface of the filter plate 5 rushes from the filter holes to the upper surface of the filter plate 5, the direction of the water flow is towards the lower part of the filter plate 5. This allows the water flow to push the slag trapped on the filter plate 5 into the opening 21 at the lower part of the filter plate 5 more quickly, thereby improving the slag collection efficiency.

[0029] It is worth noting that, since the periphery of the filter plate 5 and the interior of the water tank 4 are in a closed state, the water can only flow through the filter holes during the downward movement of the filter plate 5. The water flows from the bottom of the filter plate 5 to the upper surface of the filter plate 5, which can push out any molten slag that may be embedded in the filter holes, prevent the molten slag from being embedded in the filter holes and affecting the water flow through the filter holes, and ensure the filtration effect of the filter plate 5.

[0030] Example 3: This embodiment further explains other embodiments, the difference being the description of the flame direction of the flame torch of the cutting machine body 2.

[0031] Specifically, the flame torch of the cutting machine body 2 is set perpendicular to the water surface in the water tank 4, so that the molten stone slag enters the water in a nearly vertical manner. This reduces the contact area between the molten slag and the water surface, thereby reducing the formation of water droplets and preventing water droplets from splashing and affecting the cutting process of the flame torch.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flame cutting machine, comprising: A cutting frame (1) with dual-sided drive is used, and a cutting machine body (2) driven by hydraulic air circuit is fixed on the cutting frame (1). Its characteristic is that it further includes: The cutting table (3) is used for the movement of the cutting frame (1). A water tank (4) is provided in the middle of the cutting table (3). A filter plate (5) is provided in the water tank (4). The filter plate (5) is inclined in the water body of the water tank (4). The filter plate (5) is slidably connected to the inside of the water tank (4). A fixing frame (6) is fixedly provided on the top of the filter plate (5). A slide rail (7) is fixedly provided on the top of the fixing frame (6). Movable components (8) are provided on both sides inside the cutting frame (1). A connecting seat (9) is provided on the outside of the movable component (8). The connecting seat (9) is slidably provided on the slide rail (7). The collection component (10) for collecting the slag trapped by the filter plate (5) is located in the water tank (4).

2. The flame cutting machine according to claim 1, characterized in that: The active component (8) includes a swing arm (11), a symmetrically distributed rack (12) is fixedly provided on the top of the cutting table (3), and rolling gears (13) are rotatably provided on both sides inside the cutting frame (1). The rolling gears (13) are meshed with the rack (12), and a rotating gear (14) is meshed on the outside of the rolling gears (13). A symmetrically distributed rotating shaft (15) is rotatably provided on the inside of the cutting frame (1), and the rotating gear (14) is fixedly provided on the rotating shaft (15). An extension plate (16) is fixedly provided on the outside of the rotating shaft (15). An auxiliary shaft (17) is rotatably provided on the outside of the extension plate (16) away from the rotating shaft (15). One end of the swing arm (11) is rotatably connected to the auxiliary shaft (17), and the other end of the swing arm (11) is rotatably connected to the connecting seat (9).

3. A flame cutting machine according to claim 2, characterized in that: The top of the connecting seat (9) is fixedly provided with symmetrically distributed telescopic rods (18), and the top of the telescopic rods (18) is fixedly connected to the support plate fixedly provided on the inner side of the cutting frame (1).

4. A flame cutting machine according to claim 3, characterized in that: An inclined block (19) is fixedly provided at the connection between the fixed frame (6) and the filter plate (5). The higher side of the inclined block (19) is located on the fixed frame (6), and the lower side of the inclined block (19) is located on the filter plate (5).

5. A flame cutting machine according to claim 2, characterized in that: The filter plate (5) is closed around the periphery and inside the water tank (4), and the filter holes on the filter plate (5) are perpendicular to the upper and lower surfaces of the filter plate (5).

6. A flame cutting machine according to claim 2, characterized in that: The collection assembly (10) includes a collection box (20), the filter plate (5) has an inclination angle of 15°, the filter plate (5) has an opening (21) at its low point, a limiting plate (22) is fixedly installed in the opening (21), the limiting plate (22) is slidably connected to the inside of the collection box (20), the collection box (20) is fitted into the placement groove provided at the bottom of the water tank (4), the cutting table (3) has a slot (23) on its outer side, a sealing block (24) is fitted into the slot (23), and one side of the collection box (20) is fitted into the inside of the slot (23).

7. A flame cutting machine according to claim 6, characterized in that: The height of the limiting plate (22) is greater than the vertical range of motion of the filter plate (5).

8. A flame cutting machine according to claim 6, characterized in that: The sealing block (24) and the slot (23) are connected by a sealing ring gasket.

9. A flame cutting machine according to claim 1, characterized in that: The top of the water tank (4) is fixedly provided with a support frame (25), and the fixed frame (6) is slidably connected to the outside of the support frame (25).

10. A flame cutting machine according to claim 1, characterized in that: The flame torch of the cutting machine body (2) is set perpendicular to the surface of the water in the water tank (4).