Movable plasma cutting device with adjustable air pressure

Abstract

The invention discloses a movable plasma cutting device with adjustable air pressure, and aims to solve the problems that an existing movable plasma cutting device cannot adjust the air pressure of provided air in real time, and the phenomena that the quality of a notch is poor, the notch cannot be cut thoroughly and nodules are accumulated on the notch due to the fact that the air pressure is too high or too low or insufficient. The movable plasma cutting device solves the technical problems that an arc column is easily blown away by air flow and the cutting strength is easily weakened due to too high air pressure, and smoke generated by the movable plasma cutting device can directly drift away in a working environment to affect the health of operators in the prior art. A gas compressor is installed at one end of the cutting rack and connected with a gas pressure detection box through a gas conveying pipe. The air pressure of the cutting device is adjusted in real time, the phenomena that due to the fact that the air pressure is too high or too low or insufficient, the quality of a notch is poor, cutting is not thorough, and nodules are accumulated in the notch are avoided, and the phenomena that due to the fact that the air pressure is too high, airflow blows away an arc column, and the cutting strength is weakened can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of cutting devices, in particular to a movable plasma cutting device with adjustable air pressure. Background Art

[0002] Regarding the cutting of curved pipes, due to the special structure of the curved pipes, the cutting angle and height of the existing cutting device are not conducive to precise control, so the existing cutting machine is not conducive to the use of curved pipes, thereby affecting the working efficiency and cutting effect of the cutting machine.

[0003] According to the published patent 202021073545.2, a movable plasma cutting device with adjustable air pressure relates to the field of pipe bending production technology. The utility model includes a column, a transverse guide rail and a plasma cutting gun. A driving device is fixed on the top of the column. A rotating sleeve is connected to the driving device. The inner wall of the bottom end of the rotating sleeve is connected to the column through a bearing. The transverse guide rail is fixed to the peripheral side of the rotating sleeve. A longitudinal guide rail is connected to the transverse guide rail. A sliding plate is connected to the longitudinal guide rail. In the process of realizing the invention, the inventor found that at least the following problems in the prior art have not been solved: the existing cutting machine is not conducive to cutting the curved pipe by setting the transverse guide rail, the longitudinal guide rail, the driving device and the rotating sleeve. During use, the traditional movable plasma cutting device cannot adjust the gas pressure of the gas in real time. The gas pressure is too high or too low and the gas pressure is insufficient, which easily leads to poor incision quality, incomplete cutting and incision accumulation. It is also easy to cause the airflow to blow away the arc column and weaken the cutting strength due to the excessive gas pressure. In addition, the smoke generated by the movable plasma cutting device will directly float in the working environment and affect the health of the operator. For this reason, it is necessary to design a new technical solution to solve it. Summary of the invention

[0004] The purpose of the present invention is to provide a movable plasma cutting device with adjustable air pressure to solve the technical problems that the current movable plasma cutting device cannot adjust the air pressure of the gas provided in real time, and the air pressure is too high or too low or insufficient, which easily leads to poor incision quality, incomplete cutting and incision accumulation. It is also easy for the air pressure to be too high, which causes the airflow to blow away the arc column and weaken the cutting strength. In addition, the smoke generated by the movable plasma cutting device will directly float in the working environment, causing an impact on the health of the operator.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a movable plasma cutting device with adjustable air pressure, comprising a cutting frame, a gas compressor is installed at one end of the cutting frame, the gas compressor is connected to an air pressure detection box through an air supply pipe, an air pressure sensor is installed on one side of the air pressure detection box, the top of the air pressure detection box is connected to an air supply hose through an electromagnetic valve, a plasma cutting head is installed at the other end of the air supply hose, an exhaust hood is installed above the plasma cutting head, the top of the exhaust hood is connected to an exhaust fan through an exhaust hose, the other end of the exhaust fan is connected to a gas treatment box through an air guide pipe, the interior of the gas treatment box is divided into an acid storage chamber, an alkali storage chamber and a water storage chamber by two isolation plates, the acid storage chamber, the alkali storage chamber and the water storage chamber are connected through a connecting pipe, an air outlet is installed at one end of the outside of the gas treatment box, a drain valve is installed at the bottom of the gas treatment box, and a controller is installed on one side of the gas treatment box.

[0006] As a preferred embodiment of the present invention, a cutting platform is fixedly connected to the middle of the upper surface of the cutting frame, first movable rails are fixedly installed on both sides of the cutting platform, the first movable rails are connected to a beam via a first movable mechanism, the top of the beam is connected to a second movable mechanism via a second movable rail, and a lifting mechanism is installed on one side of the second movable mechanism.

[0007] As a preferred embodiment of the present invention, one end of the gas pipe is sealed and connected to the gas outlet end of the gas compressor, and the other end of the gas pipe is sealed and connected to one side of the air pressure detection box and communicates with the interior thereof, and the detection end of the air pressure sensor is located inside the air pressure detection box.

[0008] As a preferred embodiment of the present invention, one end of the solenoid valve is sealed connected to the bottom end of the air pressure detection box and communicated with the interior thereof, the other end of the solenoid valve is sealed connected to one end of the air supply hose, and the other end of the air supply hose is sealed connected to one end of the plasma cutting head.

[0009] As a preferred embodiment of the present invention, the exhaust hood covers the top of the plasma cutting head, and one side of the exhaust hood is fixedly connected to one side of the second moving mechanism and is located above the lifting mechanism.

[0010] As a preferred embodiment of the present invention, one end of the exhaust hose is sealed connected to the middle of the top of the exhaust hood and communicates with the interior thereof, and the other end of the exhaust hose is sealed connected to one end of the exhaust fan, and the exhaust fan is fixedly connected to the top of the gas treatment box.

[0011] As a preferred embodiment of the present invention, one end of the air duct is sealed connected to the other end of the vacuum pump, and the other end of the air duct is sealed connected to the top of the gas processing box and communicates with the interior of the acid storage chamber.

[0012] As a preferred embodiment of the present invention, the four sides of the isolation plate are sealed and connected to the inner wall of the gas processing box, and one end of the connecting pipe is sealed and connected to the interior of the isolation plate.

[0013] As a preferred embodiment of the present invention, one end of the gas outlet is sealed and connected to one end of the gas processing box, and communicates with the interior of the water storage chamber.

[0014] As a preferred embodiment of the present invention, three drain valves are provided, and are communicated with the interiors of the acid storage chamber, the alkali storage chamber, and the water storage chamber respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention combines a controller, a gas compressor, a gas pipeline, a gas pressure detection box, a gas pressure sensor, a solenoid valve, a gas supply hose and a plasma cutting head. When the cutting device is used, the gas is first compressed by the gas compressor and then transported to the gas pressure detection box by the gas pipeline. When the air pressure value in the gas pressure detection box reaches the detection range of the gas pressure sensor, the controller controls the solenoid valve to open. At this time, the gas supply hose transports the compressed gas to the inside of the plasma cutting head for gas supply. When the air pressure in the gas pressure detection box is too high, the controller controls the gas compressor to slow down the speed. When the air pressure in the gas pressure detection box is too low, the controller controls the gas compressor to speed up the speed, so as to achieve real-time adjustment of the air pressure of the cutting device, avoid the phenomenon of poor incision quality, incomplete cutting and incision accumulation caused by excessive or too low air pressure and insufficient air pressure, and also prevent the phenomenon of airflow blowing away the arc column and weakening the cutting strength due to excessively high air pressure. When a large amount of smoke is generated during the metal cutting process by the cutting device, the exhaust hood will absorb the smoke generated during this process, and then the exhaust fan will extract the smoke in the exhaust hood through the exhaust hose and transport it to the inside of the gas treatment box. At this time, the smoke will be processed in the acid storage room, alkali storage room and water storage room in turn, and then discharged from the air outlet, so as to avoid the smoke generated by the cutting device directly drifting in the working environment and affecting the health of the operator, thereby improving the protection effect of the cutting device on the working environment during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is the left schematic diagram of the present invention; Figure 2 It is a right schematic diagram of the present invention; Figure 3 It is a front schematic diagram of the present invention; Figure 4 A cross-sectional view of a gas processing box of the present invention; In the figure: 1. cutting frame; 11. gas compressor; 12. gas pipe; 13. air pressure detection box; 14. air pressure sensor; 15. solenoid valve; 16. air supply hose; 17. plasma cutting head; 2. Suction hood; 21. Suction hose; 22. Suction machine; 23. Air guide tube; 3. Gas treatment box; 31. Isolation plate; 32. Acid storage chamber; 33. Alkali storage chamber; 34. Water storage chamber; 35. Connecting pipe; 36. Gas outlet; 37. Drain valve; 38. Controller; 4. Cutting stage; 41. First moving track; 42. First moving mechanism; 43. Crossbeam; 44. Second moving track; 45. Second moving mechanism; 46. Lifting mechanism. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] Example 1: A movable plasma cutting device with adjustable air pressure, see Figures 1 to 4, including a cutting frame 1, a gas compressor 11 is installed at one end of the cutting frame 1, the gas compressor 11 is connected to an air pressure detection box 13 through an air supply pipe 12, an air pressure sensor 14 is installed on one side of the air pressure detection box 13, the top of the air pressure detection box 13 is connected to an air supply hose 16 through an electromagnetic valve 15, and a plasma cutting head 17 is installed on the other end of the air supply hose 16, one end of the air supply pipe 12 is sealed and connected to the air outlet end of the gas compressor 11, the other end of the air supply pipe 12 is sealed and connected to one side of the air pressure detection box 13 and communicated with the interior thereof, the detection end of the air pressure sensor 14 is located inside the air pressure detection box 13, one end of the electromagnetic valve 15 is sealed and connected to the bottom end of the air pressure detection box 13 and communicated with the interior thereof, the other end of the electromagnetic valve 15 is sealed and connected to one end of the air supply hose 16, and the other end of the air supply hose 16 is sealed and connected to one end of the plasma cutting head 17, when cutting When the device is in use, the gas is first compressed by the gas compressor 11 and then transported to the gas pressure detection box 13 through the gas pipe 12. When the air pressure value in the air pressure detection box 13 reaches the detection range of the air pressure sensor 14, the controller 38 controls the solenoid valve 15 to open, and the air supply hose 16 then transports the compressed gas to the interior of the plasma cutting head 17 for gas supply. When the air pressure in the air pressure detection box 13 is too high, the controller 38 controls the gas compressor 11 to slow down the speed. When the air pressure in the air pressure detection box 13 is too low, the controller 38 controls the gas compressor 11 to speed up the speed, so as to achieve real-time adjustment of the air pressure of the cutting device, avoiding the phenomenon of poor incision quality, incomplete cutting and incision accumulation caused by excessive or too low air pressure and insufficient air pressure, and can also prevent the phenomenon of airflow blowing away the arc column and weakening the cutting strength due to excessive air pressure; An exhaust hood 2 is installed above the plasma cutting head 17. The exhaust hood 2 covers the top of the plasma cutting head 17. One side of the exhaust hood 2 is fixedly connected to one side of the second moving mechanism 45 and is located above the lifting mechanism 46. The top of the exhaust hood 2 is connected to an exhaust fan 22 through an exhaust hose 21. The other end of the exhaust fan 22 is connected to a gas treatment box 3 through an air guide pipe 23. The interior of the gas treatment box 3 is divided into an acid storage chamber 32, an alkali storage chamber 33 and a water storage chamber 34 by two isolation plates 31. The acid storage chamber 32 and the alkali storage chamber 33 are connected to the water storage chamber 34. The storage chamber 33 and the water storage chamber 34 are connected through a connecting pipe 35. An air outlet 36 is installed at one end of the outside of the gas processing box 3. A drain valve 37 is installed at the bottom of the gas processing box 3. A controller 38 is installed on one side of the gas processing box 3. One end of the air extraction hose 21 is sealed and connected to the middle of the top of the exhaust hood 2 and communicates with the inside thereof. The other end of the air extraction hose 21 is sealed and connected to one end of the exhaust fan 22. The exhaust fan 22 is fixedly connected to the top of the gas processing box 3. One end of the air guide pipe 23 is sealed and connected to the other end of the exhaust fan 22. The other end of the air guide pipe 23 is sealed and connected to the top of the gas treatment box 3 and communicates with the interior of the acid storage chamber 32. The surrounding of the isolation plate 31 is sealed and connected to the inner wall of the gas treatment box 3. One end of the connecting pipe 35 is sealed and connected to the interior of the isolation plate 31. One end of the air outlet 36 is sealed and connected to one end of the gas treatment box 3 and communicates with the interior of the water storage chamber 34. Three drain valves 37 are provided, and are respectively communicated with the interiors of the acid storage chamber 32, the alkali storage chamber 33 and the water storage chamber 34. When the cutting device is used to cut metal A large amount of smoke is generated during the process. The exhaust hood 2 absorbs the generated smoke, and then the exhaust fan 22 extracts the smoke in the exhaust hood 2 through the exhaust hose 21, and transports it to the inside of the gas treatment box 3. At this time, the smoke will be processed in the acid storage chamber 32, the alkali storage chamber 33 and the water storage chamber 34 in turn, and then discharged from the air outlet 36, so as to avoid the smoke generated by the cutting device from directly dispersing in the working environment and affecting the health of the operator, thereby improving the protection effect of the cutting device on the working environment during use.

[0020] For details, see Figures 1 to 3A cutting stage 4 is fixedly connected to the middle of the upper surface of the cutting frame 1, and first moving rails 41 are fixedly installed on both sides of the cutting stage 4. The first moving rail 41 is connected to a beam 43 through a first moving mechanism 42, and the top of the beam 43 is connected to a second moving mechanism 45 through a second moving rail 44. A lifting mechanism 46 is installed on one side of the second moving mechanism 45. When the position of the plasma cutting head 17 is adjusted, the first moving mechanism 42 first drives the beam 43 to move on the first moving rail 41, so as to adjust the X-direction position of the plasma cutting head 17, and then the second moving mechanism 45 moves on the second moving rail 44, so as to adjust the Y-direction position of the plasma cutting head 17, and then the lifting mechanism 46 drives the plasma cutting head 17 to be lifted and lowered, so as to adjust its Z-direction position.

[0021] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A movable plasma cutting device with adjustable air pressure, comprising a cutting frame (1), characterized in that: A gas compressor (11) is installed at one end of the cutting machine frame (1), and the gas compressor (11) is connected to an air pressure detection box (13) via an air supply pipe (12). An air pressure sensor (14) is installed on one side of the air pressure detection box (13). The top end of the air pressure detection box (13) is connected to an air supply hose (16) via an electromagnetic valve (15). A plasma cutting head (17) is installed at the other end of the air supply hose (16). An exhaust hood (2) is installed above the plasma cutting head (17), and the top end of the exhaust hood (2) is connected to an exhaust machine (22) via an exhaust hose (21). The other end of the air pump (22) is connected to a gas treatment box (3) via an air guide pipe (23); the interior of the gas treatment box (3) is divided into an acid storage chamber (32), an alkali storage chamber (33) and a water storage chamber (34) by two isolation plates (31); the acid storage chamber (32), the alkali storage chamber (33) and the water storage chamber (34) are connected via a connecting pipe (35); an air outlet (36) is installed at one end of the outside of the gas treatment box (3); a drain valve (37) is installed at the bottom of the gas treatment box (3); and a controller (38) is installed on one side of the gas treatment box (3).

2. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: A cutting platform (4) is fixedly connected to the middle of the upper surface of the cutting machine frame (1), first movable rails (41) are fixedly installed on both sides of the cutting platform (4), the first movable rail (41) is connected to a crossbeam (43) via a first movable mechanism (42), the top end of the crossbeam (43) is connected to a second movable mechanism (45) via a second movable rail (44), and a lifting mechanism (46) is installed on one side of the second movable mechanism (45).

3. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: One end of the gas delivery pipe (12) is sealedly connected to the gas outlet end of the gas compressor (11), and the other end of the gas delivery pipe (12) is sealedly connected to one side of the air pressure detection box (13) and communicates with the interior thereof, and the detection end of the air pressure sensor (14) is located inside the air pressure detection box (13).

4. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: One end of the solenoid valve (15) is sealed and connected to the bottom end of the air pressure detection box (13) and communicates with the interior thereof, the other end of the solenoid valve (15) is sealed and connected to one end of the air supply hose (16), and the other end of the air supply hose (16) is sealed and connected to one end of the plasma cutting head (17).

5. The movable plasma cutting device with adjustable air pressure according to claim 2, characterized in that: The exhaust hood (2) covers the top of the plasma cutting head (17); one side of the exhaust hood (2) is fixedly connected to one side of the second moving mechanism (45) and is located above the lifting mechanism (46).

6. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: One end of the exhaust hose (21) is sealedly connected to the middle of the top of the exhaust hood (2) and communicates with the interior thereof, and the other end of the exhaust hose (21) is sealedly connected to one end of the exhaust fan (22), and the exhaust fan (22) is fixedly connected to the top of the gas processing box (3).

7. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: One end of the air guide pipe (23) is sealedly connected to the other end of the air pump (22), and the other end of the air guide pipe (23) is sealedly connected to the top of the gas processing box (3) and communicates with the interior of the acid storage chamber (32).

8. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: The four sides of the isolation plate (31) are sealed to the inner wall of the gas processing box (3), and one end of the connecting pipe (35) is sealed to the inside of the isolation plate (31).

9. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: One end of the gas outlet (36) is sealed and connected to one end of the gas processing box (3), and is communicated with the interior of the water storage chamber (34).

10. The movable plasma cutting device with adjustable air pressure according to claim 1, characterized in that: Three drain valves (37) are provided, and are respectively connected to the interior of the acid storage chamber (32), the alkali storage chamber (33), and the water storage chamber (34).

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