An automatic flame cutting device and cutting method for scrap steel coils with dust removal function

Abstract

The present invention discloses an automatic flame cutting device and a cutting method for scrap steel coils with a dust removal function. The scrap steel coil feeding and positioning device and the scrap steel coil anti-rebound limiting device cooperate to improve the stability of the scrap steel coil to be processed during the processing, prevent the scrap steel coil from being displaced during the processing, thereby improving the cutting accuracy, and preventing the scrap steel coil from rebounding, thereby protecting the safety of operators and equipment, especially the cutting gun; the hollow tubular cutting machine frame column and the cutting machine frame cantilever beam serve as dust removal passages while supporting, the dust removal system has a significant dust removal effect and does not interfere with the cutting process, thereby improving the on-site operating environment and protecting the personal safety of workers; the cutting gun can be adjusted up and down, left and right and at multiple angles through the rotatable lifting cutting mechanism, thereby realizing automatic cutting, and a plurality of rotatable lifting cutting mechanisms can be provided to realize simultaneous cutting of multiple slits, thereby improving cutting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of flame cutting, and in particular to an automatic flame cutting device and a cutting method for scrap steel coils with a dust removal function. Background Art

[0002] The supply and sale of scrap steel has become an important international market. In order to make the scrap steel suitable for transportation, reasonable loading and effective smelting, it needs to be processed into scrap steel with a certain size density and cleanness that can be put into the furnace.

[0003] Currently, scrap steel coils are processed domestically using a manual handheld flame cutting torch to cut the entire coil into sections. To avoid damage from rebound after the coil is cut, manual scrap steel coil cutting typically leaves a certain length uncut at each cut, allowing the coil to release a certain amount of stress before cutting all the cuts. This not only poses a risk of injury to workers due to the stress released by the coil during cutting, but also reduces cutting efficiency due to the time required to release stress. Furthermore, existing flame cutting equipment for scrap steel coils lacks dust removal facilities, and the dust and harmful gases generated during the cutting process pollute the environment and harm human health. Therefore, a flame cutting device that can automatically cut and remove dust from scrap steel coils of different sizes is needed in actual production. Summary of the Invention

[0004] The present invention discloses an automatic flame cutting device and cutting method for scrap steel coils with a dust removal function, which realizes the automatic cutting of scrap steel coils of different specifications and sizes. The device is simple and convenient with high cutting precision, and dust and harmful gases generated by cutting are simply and efficiently eliminated, thereby protecting the safety of operators.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] By adopting the above technical solution,

[0007] An automatic flame cutting device for scrap steel coils with a dust removal function comprises a cantilever flame cutting machine with dust removal, a scrap steel coil feeding and positioning device, and a scrap steel coil anti-rebound limiting device;

[0008] The scrap steel coil feeding and positioning device is a conical structure, the bottom surface of the scrap steel coil feeding and positioning device is fixed to the ground, and the conical surface is installed vertically upward. The scrap steel coil feeding and positioning device is made of wear-resistant and high-temperature resistant materials. The maximum diameter of the conical cross-section of the scrap steel coil feeding and positioning device does not exceed the minimum inner diameter of the scrap steel coil to be processed. The center hole of the scrap steel coil to be processed can be sleeved on the scrap steel coil feeding and positioning device for positioning;

[0009] The scrap steel coil anti-rebound limiting device includes a limiting member and a limiting plate that can move in a piston-like manner. The limiting plate is an arc-shaped steel plate. The curvature of the limiting plate does not exceed the curvature of the minimum cutting process parameter of the steel coil. The limiting plate is fixedly connected to the limiting member. The scrap steel coil feeding and positioning device is fixedly and symmetrically provided with multiple scrap steel coil anti-rebound limiting devices around it. The limiting member drives the limiting plate to move back and forth to achieve anti-rebound restriction of the scrap steel coil to be processed;

[0010] The cantilever flame cutting machine with dust removal includes a dust removal system, a cantilever beam structure frame and a rotatable lifting and cutting mechanism installed above the cantilever beam structure frame;

[0011] The cantilever beam structure frame is the main body of the flame cutting device, and the rotatable lifting cutting mechanism provided on the cantilever beam structure frame can move up and down to perform cutting work;

[0012] The cantilever beam structure frame includes a cutting machine frame column, a cutting machine frame counterweight, a cutting machine cantilever beam rotating mechanism, and a cutting machine frame cantilever beam; the cutting machine frame column is vertically fixed to the ground, the top of the cutting machine frame column is connected to the cutting machine frame cantilever beam and the cutting machine cantilever beam rotating mechanism, and the cutting machine frame cantilever beam can be driven to rotate to the processing station by controlling the cutting machine cantilever beam rotating mechanism, and the cutting machine frame counterweight with a counterweight function is provided at one end of the cutting machine frame cantilever beam;

[0013] The dust removal system includes a dust removal hood, a dust removal pipeline and a dust collector. The dust removal hood is vertically provided at the lower part of the working end of the cantilever beam of the cutting machine frame. The dust removal hood is located directly above the scrap steel coil loading and positioning device. The dust removal pipeline is a hollow tubular cutting machine frame column and the cutting machine frame cantilever beam. The dust collector is connected to the dust removal hood through the dust removal pipeline. The tubular cutting machine frame column and the cutting machine frame cantilever beam serve as a dust removal passage while providing support.

[0014] As a further solution of the present invention: the dust removal cover is welded below the cantilever beam of the cutting machine frame to form a whole, and the dust removal cover is concentric with the scrap steel coil to be processed when the cutting machine is working.

[0015] As a further solution of the present invention: a plurality of the rotatable lifting and cutting mechanisms are provided on the cantilever beam structure frame according to the maximum diameter of the scrap steel coil to be processed, and the plurality of the rotatable lifting and cutting mechanisms can meet the requirements of cutting multiple slits at the same time and cutting multiple slits at the same time.

[0016] As a further solution of the present invention: the rotatable lifting and cutting mechanism includes a rotating part, a lifting part and a cutting part. The rotating part can drive the rotatable lifting and cutting mechanism to adaptively rotate according to processing requirements to achieve the purpose of efficient cutting. The lifting part is fixed on the rotating part, and the lifting end of the lifting part is connected to the cutting part. The lifting part can drive the cutting part to lift and lower for cutting. The center of rotation of the rotatable lifting and cutting mechanism coincides with the center of the scrap steel roll to be processed, and the lifting direction of the cutting part is consistent with the axial direction of the scrap steel roll to be processed.

[0017] As a further solution of the present invention: the rotating part includes a cutting trolley beam and a cutting beam rotating mechanism, the cutting beam rotating mechanism and the cutting trolley beam are provided on the upper part of the working end of the cantilever beam of the cutting machine frame, and the cutting beam rotating mechanism is provided in the middle of the cutting trolley beam, and the cutting trolley beam can be driven by the cutting beam rotating mechanism to rotate adaptively for work;

[0018] The lifting part includes a cutting trolley and a cutting gun lifting device. The cutting trolley is arranged at both ends of the cutting trolley crossbeam. The cutting trolley can move left and right relative to the cutting trolley crossbeam to adapt to different diameters of scrap steel coils to be processed. The cutting trolley is long and is arranged perpendicular to the cutting trolley crossbeam. The cutting gun lifting device is provided on the cutting trolley, and the cutting gun lifting device can move up and down relative to the cutting trolley.

[0019] The cutting part includes a clamping mechanism and a cutting gun. One end of the clamping mechanism is connected to the cutting gun lifting device, and the other end is clamped and connected to the cutting gun. The cutting gun lifting device can drive the cutting gun to move up and down through the clamping mechanism.

[0020] The lifting part can drive the cutting gun to move left and right and up and down to adapt to processing.

[0021] The clamping mechanism includes an angle adjuster capable of adjusting the angle of the cutting torch.

[0022] An automatic flame cutting method for scrap steel coils with a dust removal function comprises the following steps:

[0023] S1, loading the scrap steel coil to be processed to the designated cutting station through a loading device, and positioning the scrap steel coil to be processed by the scrap steel coil loading and positioning device provided at the cutting station;

[0024] S2, starting the scrap steel coil anti-rebound limiting device to limit the scrap steel coil;

[0025] S3, starting the cantilever beam rotating mechanism of the cutting machine, so that the rotating portion of the rotatable lifting and cutting mechanism is concentric with the scrap steel coil to be processed, and the dust removal cover is positioned directly above the axis of the scrap steel coil to be processed;

[0026] S4, starting the dust collector to exhaust air;

[0027] S5. Controlling the cutting carriage to move left and right along the cutting carriage beam according to the diameter of the scrap steel coil to be processed, adjusting the angle of the cutting torch by adjusting the angle adjuster so that the cutting torch reaches a designated preheating position, and starting the ignition preheating of the cutting torch;

[0028] S6, starting the cutting gun lifting device to move up and down along the cutting trolley to cut the scrap steel coil to be processed;

[0029] S7, after the cutting is completed, the cutting carriage moves to the maximum opening position, and the cutting torch rises to the highest position;

[0030] S8, the cantilever beam of the cutting machine frame rotates to a safe position;

[0031] S9, the scrap steel coil anti-rebound limiting device is retracted to the maximum opening;

[0032] S10, use the electromagnetic chuck to cut the material, and the whole cutting process is completed.

[0033] As a further solution of the present invention: a plurality of the rotatable lifting cutting mechanisms include a plurality of the cutting guns that can cut and sever the steel coils at the same time.

[0034] As a further solution of the present invention: a plurality of cutting stations are provided, each of which is provided with the scrap steel coil feeding and positioning device, and alternating cutting operations can be performed by adjusting the cantilever beam of the cutting machine frame.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. The cutting device includes a scrap steel coil feeding and positioning device and a scrap steel coil anti-rebound limiting device. The scrap steel coil feeding and positioning device is a conical structure. The center hole of the scrap steel coil to be processed can be sleeved on the scrap steel coil feeding and positioning device for positioning; the scrap steel coil anti-rebound limiting device includes a limiting component and a limiting plate that can move in a piston-like manner. The scrap steel coil feeding and positioning device is fixedly and symmetrically and evenly provided with multiple scrap steel coil anti-rebound limiting devices around the scrap steel coil feeding and positioning device. The limiting component drives the limiting plate to move back and forth to achieve anti-rebound restriction on the scrap steel coil to be processed, thereby improving the stability of the scrap steel coil to be processed during the processing process, preventing the scrap steel coil from being displaced during the processing process, thereby improving the cutting accuracy, and preventing the scrap steel coil from rebounding, protecting the safety of the operator, equipment, especially the cutting gun.

[0037] 2. The cutting device also includes a dust removal system, which consists of a dust removal hood, a dust removal pipeline and a dust collector. When the cutting machine is working, the dust removal hood is concentric with the scrap steel coil to be processed and is located directly above the scrap steel coil to be processed. The dust removal pipeline is composed of a hollow tubular cutting machine frame column and a cutting machine frame cantilever beam. The dust collector is connected to the dust removal hood through the dust removal pipeline. The tubular cutting machine frame column and the cutting machine frame cantilever beam serve as a dust removal passage in addition to supporting function. The dust removal system has a significant dust removal effect and does not interfere with the cutting process, thereby improving the on-site operating environment and protecting the personal safety of workers.

[0038] 3. The cutting gun can be adjusted up and down, left and right and at multiple angles through the rotatable lifting cutting mechanism, realizing automatic cutting. Multiple rotatable lifting cutting mechanisms can realize simultaneous cutting of multiple slits, thus improving cutting efficiency.

[0039] 4. By setting up multiple cutting stations and adjusting the cantilever beam of the cutting machine frame, alternate cutting work can be performed, thereby improving cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0041] In the attached figure:

[0042] Figure 1 The present invention is a schematic structural diagram of an automatic flame cutting device for scrap steel coils with a dust removal function.

[0043] Figure 2 This is a side view of an automatic flame cutting device for scrap steel coils with a dust removal function according to the present invention.

[0044] Figure 3 This is a schematic diagram of an automatic flame cutting device for scrap steel coils with a dust removal function working between two cutting stations according to the present invention.

[0045] Reference numerals:

[0046] 1. Cantilever flame cutting machine with dust removal; 11. Cantilever beam structure frame; 12. Rotatable lifting and lowering cutting mechanism; 13. Dust removal system; 111. Cutting machine frame column; 112. Cutting machine frame counterweight; 113. Cutting machine cantilever beam rotation mechanism; 114. Cutting machine frame cantilever beam; 131. Dust hood; 132. Dust collector; 121. Rotating unit; 122. Lifting unit; 123. Cutting unit; 1211. Cutting trolley beam; 1212. Cutting beam rotating mechanism; 1221. Cutting trolley; 1222. Cutting gun lifting device; 1231. Clamping mechanism; 1232. Cutting gun; 1233. Angle adjuster; 2. Scrap coil loading and positioning device; 3. Scrap coil anti-rebound limiting device; 31. Limiting member; 32. Limiting plate; 4. Scrap coil to be processed; DETAILED DESCRIPTION

[0047] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0048] It should be noted that all directional indications in the embodiments (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, in the embodiments, descriptions such as "first" and "second" are only for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0051] like Figure 1-3 As shown:

[0052] The invention discloses an automatic flame cutting device for scrap steel coils with a dust removal function, comprising a cantilever flame cutting machine 1 with dust removal, a scrap steel coil feeding and positioning device 2 and a scrap steel coil anti-rebound limiting device 3.

[0053] The scrap steel coil feeding and positioning device 2 is a conical structure. The bottom surface of the scrap steel coil feeding and positioning device 2 is fixed to the ground, and the conical surface is installed vertically upward. The scrap steel coil feeding and positioning device 2 is made of wear-resistant and high-temperature resistant materials. The maximum diameter of the conical cross-section of the scrap steel coil feeding and positioning device 2 does not exceed the minimum inner diameter of the scrap steel coil 4 to be processed. The center hole of the scrap steel coil 4 to be processed can be mounted on the scrap steel coil feeding and positioning device 2 for positioning; the scrap steel coil feeding and positioning device 2 is made of fire-resistant and wear-resistant materials to ensure that it is not damaged by large-scale flame cutting when cutting the steel coil. With the conical structure, the scrap steel coil will automatically fall to the designated cutting position along its edge, and it also provides a loading reference for the loading operation.

[0054] The scrap steel coil anti-rebound limiting device 3 includes a limiting member 31 and a limiting plate 32 that can move in a piston-like manner. The limiting plate 32 is an arc-shaped steel plate. The curvature of the limiting plate 32 does not exceed the curvature of the minimum cutting process parameter of the steel coil. The limiting plate 32 is fixedly connected to the limiting member 31. A plurality of scrap steel coil anti-rebound limiting devices 3 are fixedly and symmetrically arranged around the scrap steel coil loading and positioning device 2. The limiting member 31 drives the limiting plate 32 to move back and forth to achieve anti-rebound restriction on the scrap steel coil 4 to be processed.

[0055] like Figure 2-3 As shown, the two scrap steel coil anti-rebound limiting devices 3 are arranged in a mirror image according to the center line of the steel coil, and the maximum openings on both sides leave necessary space for loading and unloading of the steel coil. The piston-movable limiting member 31 is installed on the ground through anchor bolts, and the limiting plate 32 is installed on the movable shaft of the limiting member 31. The piston-movable limiting member 31 can provide space for loading and unloading of scrap steel coils, and can provide two radial thrusts of equal size and opposite directions for steel coils of different diameters. When the steel coil is cut, the steel coil is restrained, and the cut steel coil can maintain its original shape as much as possible, creating conditions for the subsequent mechanical flame cutting of the uncut slits of the steel coil, while protecting the cutting equipment from damage by the rebounded steel coil and protecting personal safety.

[0056] The piston-like motion limiting member 31 may be a piston-like motion device such as an air cylinder, an electro-hydraulic push rod or a hydraulic cylinder.

[0057] The cantilever flame cutting machine 1 with dust removal includes a dust removal system 13, a cantilever beam structure frame 11 and a rotatable lifting cutting mechanism 12 installed above the cantilever beam structure frame 11; the cantilever beam structure frame 11 is the main body of the flame cutting device, and the rotatable lifting cutting mechanism 12 set on the cantilever beam structure frame 11 can move up and down to perform cutting work.

[0058] The cantilever beam structure frame 11 includes a cutting machine frame column 111, a cutting machine frame counterweight 112, a cutting machine cantilever beam rotating mechanism 113, and a cutting machine frame cantilever beam 114; the cutting machine frame column 111 is vertically fixed to the ground, and the top of the cutting machine frame column 111 is connected to the cutting machine frame cantilever beam 114 and the cutting machine cantilever beam rotating mechanism 113. By controlling the cutting machine cantilever beam rotating mechanism 113, the cutting machine frame cantilever beam 114 can be driven to rotate to the processing station. A cutting machine frame counterweight 112 with a counterweight function is provided at one end of the cutting machine frame cantilever beam 114.

[0059] The dust removal system 13 includes a dust removal hood 131, a dust removal pipeline and a dust collector 132. A dust removal hood 131 is vertically provided at the lower part of the working end of the cutting machine frame cantilever beam 114. The dust removal hood 131 is welded to the bottom of the cutting machine frame cantilever beam 114 to form a whole. When the cutting machine is working, the dust removal hood 131 is concentric with the scrap steel coil 4 to be processed. The dust removal hood 131 is located directly above the scrap steel coil feeding and positioning device 2. The dust removal pipeline is a hollow tubular cutting machine frame column 111 and the cutting machine frame cantilever beam 114. The dust collector 132 is connected to the dust removal hood 131 through the dust removal pipeline. The tubular cutting machine frame column 111 and the cutting machine frame cantilever beam 114 serve as a dust removal passage while providing support.

[0060] The cutting machine frame's cantilever beam 114 and upright column 111 are both constructed of hollow steel tubular structures. A dust removal outlet is provided on the upright column 111 and connects to a dust collector 132 on the ground. The dust hood 131 is positioned as close to the top surface of the steel coil as possible to ensure effective dust removal. This ensures dust removal regardless of the cantilever beam's rotation angle. Excessive rotation prevents the dust removal piping from interfering with the equipment or its own piping, effectively solving the challenge of routing dust removal piping on cutting equipment.

[0061] like Figure 3 As shown: a plurality of rotatable lifting cutting mechanisms 12 are provided on the cantilever beam structure frame 11 according to the maximum diameter of the scrap steel coil 4 to be processed. The plurality of rotatable lifting cutting mechanisms 12 can meet the requirements of cutting multiple slits at the same time and cutting multiple slits at the same time.

[0062] The rotatable lifting and cutting mechanism 12 includes a rotating part 121, a lifting part 122 and a cutting part 123. The rotating part 121 can drive the rotatable lifting and cutting mechanism 12 to adaptively rotate according to processing requirements to achieve the purpose of efficient cutting. The lifting part 122 is fixed on the rotating part 121. The lifting end of the lifting part 122 is connected to the cutting part 123. The lifting part 122 can drive the cutting part 123 to lift and lower for cutting. The center of rotation of the rotatable lifting and cutting mechanism 12 coincides with the center of the scrap steel coil 4 to be processed, and the lifting direction of the cutting part 123 is consistent with the axial direction of the scrap steel coil 4 to be processed.

[0063] The rotating part 121 includes a cutting trolley beam 1211 and a cutting beam rotating mechanism 1212. The cutting beam rotating mechanism 1212 and the cutting trolley beam 1211 are provided on the upper part of the working end of the cutting machine frame cantilever beam 114. The cutting beam rotating mechanism 1212 is arranged in the middle of the cutting trolley beam 1211. The cutting beam rotating mechanism 1212 can drive the cutting trolley beam 1211 to rotate adaptively for work.

[0064] The lifting part 122 includes a cutting trolley 1221 and a cutting gun lifting device 1222. The cutting trolley 1221 is arranged at both ends of the cutting trolley beam 1211. The cutting trolley 1221 can move left and right relative to the cutting trolley beam 1211 to adapt to different diameters of scrap steel coils 4 to be processed. The cutting trolley 1221 is long and is arranged vertically with the cutting trolley beam 1211. A cutting gun lifting device 1222 is provided on the cutting trolley 1221, and the cutting gun lifting device 1222 can move up and down relative to the cutting trolley 1221.

[0065] The cutting part 123 includes a clamping mechanism 1231 and a cutting torch 1232. One end of the clamping mechanism 1231 is connected to the torch lifting device 1222, and the other end is clamped and connected to the cutting torch 1232. The cutting torch lifting device 1222 can drive the cutting torch 1232 to move up and down through the clamping mechanism 1231.

[0066] The lifting portion 122 can drive the cutting torch 1232 to move left and right and up and down to adapt to processing.

[0067] The clamping mechanism 1231 includes an angle adjuster 1233 that can adjust the angle of the cutting torch 1232. The angle of the cutting torch 1232 can be adjusted by the angle adjuster 1233, thereby improving cutting efficiency and accuracy.

[0068] The cutting gun 1232 can be adjusted up and down, left and right, and at multiple angles through the rotatable lifting cutting mechanism 12, thereby realizing automatic cutting. Providing multiple rotatable lifting cutting mechanisms 12 allows for simultaneous cutting of multiple slits, thereby improving cutting efficiency.

[0069] The automatic flame cutting method for scrap steel coils with dust removal function comprises the following steps:

[0070] S1, the scrap steel coil 4 to be processed is loaded to the designated cutting station through the loading device, and the scrap steel coil loading and positioning device 2 provided at the cutting station positions the scrap steel coil 4 to be processed;

[0071] S2, start the scrap steel coil anti-rebound limiting device 3 to limit the scrap steel coil;

[0072] S3. Start the cantilever beam rotating mechanism 113 of the cutting machine, so that the rotating portion 121 of the rotatable lifting and cutting mechanism 12 is concentric with the scrap steel coil 4 to be processed, and the dust removal cover 131 is positioned directly above the axis of the scrap steel coil 4 to be processed;

[0073] S4, start the dust collector 132 to exhaust air;

[0074] S5. Control the cutting trolley 1221 to move left and right along the cutting trolley beam 1211 according to the diameter of the scrap steel coil 4 to be processed, adjust the angle of the cutting torch 1232 by adjusting the angle adjuster 1233 so that the cutting torch 1232 reaches the specified preheating position, and start the cutting torch 1232 to ignite and preheat;

[0075] S6, start the cutting gun lifting device 1222 and move it up and down along the cutting trolley 1221 to cut the scrap steel coil 4 to be processed;

[0076] S7. After the cutting is completed, the cutting carriage 1221 moves to the maximum opening position, and the cutting torch 1232 rises to the highest position;

[0077] S8, the cutting machine frame cantilever beam 114 rotates to a safe position;

[0078] S9, the scrap steel coil anti-rebound limiting device 3 is withdrawn to the maximum opening;

[0079] S10, use the electromagnetic chuck to cut the material, and the whole cutting process is completed.

[0080] A plurality of rotatable lifting cutting mechanisms 12 can be provided, and a plurality of cutting guns 1232 can cut and sever the steel coil at the same time.

[0081] There are multiple cutting stations, each of which is equipped with a scrap steel coil loading and positioning device 2. Alternating cutting work can be performed by adjusting the cantilever beam 114 of the cutting machine frame.

[0082] In practical applications:

[0083] The cutting device includes a scrap steel coil feeding and positioning device 2 and a scrap steel coil anti-rebound limiting device 3. The scrap steel coil feeding and positioning device 2 is a conical structure. The center hole of the scrap steel coil 4 to be processed can be mounted on the scrap steel coil feeding and positioning device 2 for positioning; the scrap steel coil anti-rebound limiting device 3 includes a limiting component 31 and a limiting plate 32 that can move in a piston-like manner. A plurality of scrap steel coil anti-rebound limiting devices 3 are fixedly, symmetrically and evenly arranged around the scrap steel coil feeding and positioning device 2. The limiting component 31 drives the limiting plate 32 to move back and forth to achieve anti-rebound limitation of the scrap steel coil 4 to be processed, thereby improving the stability of the scrap steel coil 4 to be processed during the processing process, preventing the scrap steel coil from being displaced during the processing process, thereby improving the cutting accuracy, and preventing the scrap steel coil from rebounding, protecting the operator and the safety of the equipment, especially the cutting gun 1232.

[0084] The cutting device also includes a dust removal system 13, which consists of a dust removal hood 131, a dust removal pipeline and a dust collector 132. When the cutting machine is working, the dust removal hood 131 is concentric with the scrap steel coil 4 to be processed and is located directly above the scrap steel coil 4 to be processed. The dust removal pipeline is composed of a hollow tubular cutting machine frame column 111 and a cutting machine frame cantilever beam 114. The dust collector 132 is connected to the dust removal hood 131 through the dust removal pipeline. The tubular cutting machine frame column 111 and the cutting machine frame cantilever beam 114 serve as a dust removal passage while providing support. The dust removal system 13 has a significant dust removal effect and does not interfere with the cutting process, thereby improving the on-site operating environment and protecting the personal safety of workers.

[0085] The cutting gun 1232 can be adjusted up and down, left and right, and at multiple angles through the rotatable lifting cutting mechanism 12, thereby realizing automatic cutting. Providing multiple rotatable lifting cutting mechanisms 12 allows for simultaneous cutting of multiple slits, thereby improving cutting efficiency.

[0086] By setting up multiple cutting stations and adjusting the cantilever beam 114 of the cutting machine frame, alternate cutting work can be performed, thereby improving cutting efficiency.

[0087] Finally, it should be noted that the above disclosure is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The scope of this application is limited only by the appended claims.

Claims

1. An automatic flame cutting device for scrap steel coils with dust removal function, comprising a cantilever flame cutting machine with dust removal function, a scrap steel coil feeding and positioning device, and a scrap steel coil anti-rebound limiting device; Its characteristics are: The scrap steel coil feeding and positioning device is a conical structure, the bottom surface of the scrap steel coil feeding and positioning device is fixed to the ground, and the conical surface is installed vertically upward. The scrap steel coil feeding and positioning device is made of wear-resistant and high-temperature resistant materials. The maximum diameter of the conical cross-section of the scrap steel coil feeding and positioning device does not exceed the minimum inner diameter of the scrap steel coil to be processed. The center hole of the scrap steel coil to be processed can be sleeved on the scrap steel coil feeding and positioning device for positioning; The scrap steel coil anti-rebound limiting device includes a limiting member and a limiting plate that can move in a piston-like manner. The limiting plate is an arc-shaped steel plate. The curvature of the limiting plate does not exceed the curvature of the minimum cutting process parameter of the steel coil. The limiting plate is fixedly connected to the limiting member. The scrap steel coil feeding and positioning device is fixedly and symmetrically provided with multiple scrap steel coil anti-rebound limiting devices around it. The limiting member drives the limiting plate to move back and forth to achieve anti-rebound restriction of the scrap steel coil to be processed; The cantilever flame cutting machine with dust removal includes a dust removal system, a cantilever beam structure frame and a rotatable lifting and cutting mechanism installed above the cantilever beam structure frame; The cantilever beam structure frame is the main body of the flame cutting device, and the rotatable lifting cutting mechanism provided on the cantilever beam structure frame can move up and down to perform cutting work; The cantilever beam structure frame includes a cutting machine frame column, a cutting machine frame counterweight, a cutting machine cantilever beam rotating mechanism, and a cutting machine frame cantilever beam; the cutting machine frame column is vertically fixed to the ground, the top of the cutting machine frame column is connected to the cutting machine frame cantilever beam and the cutting machine cantilever beam rotating mechanism, and the cutting machine frame cantilever beam can be driven to rotate to the processing station by controlling the cutting machine cantilever beam rotating mechanism, and the cutting machine frame counterweight with a counterweight function is provided at one end of the cutting machine frame cantilever beam; The dust removal system includes a dust removal hood, a dust removal pipeline and a dust collector. The dust removal hood is vertically provided at the lower part of the working end of the cantilever beam of the cutting machine frame. The dust removal hood is located directly above the scrap steel coil feeding and positioning device. The dust removal pipeline is a hollow tubular cutting machine frame column and the cutting machine frame cantilever beam. The dust collector is connected to the dust removal hood through the dust removal pipeline. The tubular cutting machine frame column and the cutting machine frame cantilever beam serve as a dust removal passage while providing support. The rotatable lifting and cutting mechanism includes a rotating part, a lifting part and a cutting part. The rotating part can drive the rotatable lifting and cutting mechanism to adaptively rotate according to processing requirements to achieve efficient cutting. The lifting part is fixed to the rotating part, and the lifting end of the lifting part is connected to the cutting part. The lifting part can drive the cutting part to lift and lower for cutting. The center of rotation of the rotatable lifting and cutting mechanism coincides with the center of the scrap steel coil to be processed, and the lifting direction of the cutting part is consistent with the axial direction of the scrap steel coil to be processed. The rotating part includes a cutting trolley beam and a cutting beam rotating mechanism. The cutting beam rotating mechanism and the cutting trolley beam are provided on the upper part of the working end of the cantilever beam of the cutting machine frame. The cutting beam rotating mechanism is provided in the middle of the cutting trolley beam. The cutting beam rotating mechanism can drive the cutting trolley beam to rotate adaptively for work. The lifting part includes a cutting trolley and a cutting gun lifting device. The cutting trolley is arranged at both ends of the cutting trolley crossbeam. The cutting trolley can move left and right relative to the cutting trolley crossbeam to adapt to different diameters of scrap steel coils to be processed. The cutting trolley is long and is arranged perpendicular to the cutting trolley crossbeam. The cutting gun lifting device is provided on the cutting trolley, and the cutting gun lifting device can move up and down relative to the cutting trolley. The cutting part includes a clamping mechanism and a cutting gun. One end of the clamping mechanism is connected to the cutting gun lifting device, and the other end is clamped and connected to the cutting gun. The cutting gun lifting device can drive the cutting gun to move up and down through the clamping mechanism. The lifting part can drive the cutting gun to move left and right and up and down to adapt to processing; The clamping mechanism includes an angle adjuster capable of adjusting the angle of the cutting torch.

2. The automatic flame cutting device for scrap steel coils with dust removal function according to claim 1 is characterized in that: The dust removal cover is welded below the cantilever beam of the cutting machine frame to form a whole. When the cutting machine is working, the dust removal cover is concentric with the scrap steel coil to be processed.

3. The automatic flame cutting device for scrap steel coils with dust removal function according to claim 1 is characterized in that: The cantilever beam structure frame is provided with a plurality of rotatable lifting and cutting mechanisms according to the maximum diameter of the scrap steel coil to be processed. The plurality of rotatable lifting and cutting mechanisms can meet the requirements of simultaneously cutting and cutting off multiple slits.

4. The cutting method of the scrap steel coil automatic flame cutting device with dust removal function according to claim 1 is characterized in that: The following steps are involved: S1, loading the scrap steel coil to be processed to the designated cutting station through a loading device, and positioning the scrap steel coil to be processed by the scrap steel coil loading and positioning device provided at the cutting station; S2, starting the scrap steel coil anti-rebound limiting device to limit the scrap steel coil; S3, starting the cantilever beam rotating mechanism of the cutting machine, so that the rotating portion of the rotatable lifting and cutting mechanism is concentric with the scrap steel coil to be processed, and the dust removal cover is positioned directly above the axis of the scrap steel coil to be processed; S4, starting the dust collector to exhaust air; S5. Controlling the cutting carriage to move left and right along the cutting carriage beam according to the diameter of the scrap steel coil to be processed, adjusting the angle of the cutting torch by adjusting the angle adjuster so that the cutting torch reaches a designated preheating position, and starting the ignition preheating of the cutting torch; S6, starting the cutting gun lifting device to move up and down along the cutting trolley to cut the scrap steel coil to be processed; S7, after the cutting is completed, the cutting carriage moves to the maximum opening position, and the cutting torch rises to the highest position; S8, the cantilever beam of the cutting machine frame rotates to a safe position; S9, the scrap steel coil anti-rebound limiting device is retracted to the maximum opening; S10, use the electromagnetic chuck to cut the material, and the whole cutting process is completed.

5. The cutting method of the scrap steel coil automatic flame cutting device with dust removal function according to claim 4 is characterized in that: The plurality of rotatable lifting and cutting mechanisms include a plurality of cutting guns that can cut and sever the steel coils at the same time.

6. The cutting method of the scrap steel coil automatic flame cutting device with dust removal function according to claim 4, characterized in that: A plurality of cutting stations are provided, each of which is provided with the scrap steel coil feeding and positioning device, and alternating cutting work can be performed by adjusting the cantilever beam of the cutting machine frame.

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