A synchronous frequency clean air system and its working method

Abstract

A same-frequency blowing system and working method belong to the technical field of square tube cutting. The system blows the square tube head and tail simultaneously while cutting, and the blowing device is linked with the cutting power supply, effectively saving energy. The system ensures that the tail blowing mechanism does not collide with the running square tube. When the square tube advances, the floating roller rotates around the rotating bearing after being pushed by the square tube, and turns to the lower side of the square tube. When the square tube is taken away, the floating roller reverses and rotates around the rotating bearing under the gravity of the weight. According to the dust collection mode of steel plate plasma cutting operation, the dust collector adopts frequency conversion control, blowing is added on one side of the smoke suction port, the smoke dust collection effect is improved, the electric energy is saved, the blowing distance is closer, the control is more sensitive, the effect is better, the smoke dust diffusion problem can be effectively solved, the environmental pollution is reduced, and the normal use of the equipment is ensured.

Description

Technical Field

[0001] This invention relates to a synchronous air purification system and its working method, which belongs to the technical field of square tube cutting. Background Technology

[0002] The square tube processing production line is a highly automated and intelligent specialized production line. To address the issue of plasma cutting fumes, the line is equipped with a dedicated cutting chamber and dust collector. However, due to the considerable length of the square tubes, one end is exposed during cutting, resulting in an incompletely sealed cutting chamber, poor fume collection, and excessive fume diffusion. Critical components of the robot within the cutting chamber are chronically affected by residual fume, leading to a high failure rate, severely impacting equipment precision, and delaying production. The fumes also cause significant environmental pollution and shorten the lifespan of critical equipment components. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention provides a synchronous frequency clean air system and its working method. By applying the synchronous frequency clean air system, the problem of smoke and dust diffusion can be effectively solved, environmental pollution can be reduced, and normal equipment operation can be guaranteed.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: a synchronous frequency clean air system, which includes a material roller mounted on a material roller bracket, and a square tube placed on the material roller; the square tube includes a square tube head end and a square tube tail end, and a certain point at the square tube head end and the square tube tail end is a square tube cut-out point; a head end clamping device is provided at the head end of the square tube, and a head end air inlet pipe is fixed on the head end clamping device, with the air inlet of the head end air inlet pipe inserted into the head end of the square tube;

[0005] A tail-end blowing mechanism is provided at the tail end of the square tube. In the tail-end blowing mechanism, the floating roller is mounted on the material roller support through a rotary bearing. The upper end of the floating roller is connected to the floating roller, and the lower end of the floating roller is connected to the weight.

[0006] The floating roller is connected to the first and second floating roller sections by a connecting rod in the middle. A rigid tube is fixed on the connecting rod. One end of the rigid tube is an air inlet, and the other end is connected to the tail end air inlet pipe.

[0007] The upper edge of the floating roller is higher than the lower edge of the tail end of the square tube, and the lower edge of the floating roller is lower than the lower edge of the tail end; the upper edge of the air blowing port is lower than the upper edge of the floating roller, and the lower edge of the air blowing port is higher than the lower edge of the tail end.

[0008] The floating roller and the weight in the tail-end blowing mechanism can rotate around the rotary bearing, and multiple sets of tail-end blowing mechanisms are set on the material roller support.

[0009] A method for operating a synchronous frequency clean air system includes the following steps:

[0010] (1) Square tube cutting and dust collection

[0011] Cut at a point between the first and last ends of the square tube, and simultaneously activate the dust collection device to collect dust during the cutting process.

[0012] (2) Blow air at the head end

[0013] While cutting, the air pump at the beginning is started. The gas enters the beginning of the square tube through the air inlet pipe and blows the cutting dust inside the square tube back into the cutting chamber, where it is sucked away by the dust collection device. The air pump at the beginning is turned off a few seconds after the cutting is completed.

[0014] After the entire square tube is cut, the clamping device at the head end is released, causing the air inlet pipe at the head end to return to its original position, ready for the next operation.

[0015] (3) Blow air at the tail end

[0016] While cutting, the air pump at the tail end is started. The gas flows along the air inlet pipe and rigid pipe from the air outlet into the tail end of the square tube, blowing the cutting dust inside the square tube back into the cutting chamber, where it is sucked away by the dust collection device. The air pump at the head end is turned off a few seconds after the cutting is completed.

[0017] After cutting, the square tube moves forward along the material roller. The lower edge of the tail end of the square tube touches the floating roller. The floating roller rotates around the rotating bearing, causing the rigid tube to be pressed under the square tube.

[0018] When cutting again, the other air blowing mechanism at the front of the square tube tail end will work to blow air until all cutting is completed;

[0019] The cut square tubes are moved away by a crane, and the floating roller rotates in the opposite direction around the rotating bearing under the action of the weight until the floating roller returns to the center position, ready for the next operation.

[0020] The beneficial effects of this invention are: based on the end position of the square tube and the cutting operation time, the inside of the square tube is blew at the same frequency, thereby improving the dust collection effect of the dust collector.

[0021] Simultaneous airflow at the beginning and end of the square tube during cutting, with the blowing device linked to the cutting power supply, effectively saves energy. The synchronous airflow system in this application ensures that the tail-end blowing mechanism does not collide with the running square tube. When the square tube advances, the floating roller rotates around the rotary bearing under the thrust of the square tube, flipping to the lower position of the square tube. After the square tube is removed, the floating roller rotates back to its original position under the gravity of the weight. This application utilizes a dust collection method based on plasma cutting of steel plates, employing frequency conversion control for the dust collector and adding airflow on the side directly opposite the smoke inlet to improve dust collection efficiency while saving energy. The blowing distance is closer, control is more agile, and the effect is better; it effectively solves the problem of dust diffusion, reduces environmental pollution, and ensures normal equipment operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a square tube processing production line.

[0023] Figure 2 This is a schematic diagram of a synchronous frequency clean air system.

[0024] Figure 3 This is a schematic diagram of the floating roller structure.

[0025] In the diagram: 1. Square tube, 2. First end of square tube, 3. Tail end of square tube, 4. Lower edge of tail end, 5. Material roller bracket, 6. Material roller, 7. Air inlet pipe at the first end, 8. Floating roller, 8a. First section of floating roller, 8b. Second section of floating roller, 8c. Connecting rod, 8d. Upper edge of floating roller, 8e. Lower edge of floating roller, 9. Rotary bearing, 10. Floating roller rotating rod, 11. Weight, 12. Rigid tube, 13. Air inlet, 14. Air inlet pipe at the tail end, 15. Clamping device at the first end. Implementation

[0026] 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.

[0027] Figures 1 to 3 A synchronous air purification system is shown, which includes a material roller 6 mounted on a material roller bracket 5, and a square tube 1 placed on the material roller 6; the square tube 1 includes a square tube head end 2 and a square tube tail end 3, and a certain point of the square tube head end 2 and the square tube tail end 3 is a square tube cutting point; a head end clamping device 15 is provided at the head end 2 of the square tube, and a head end air inlet pipe 7 is fixed on the head end clamping device 15, and the air inlet of the head end air inlet pipe 7 is inserted into the head end 2 of the square tube.

[0028] A tail-end blowing mechanism is installed at three points on the tail end of the square tube. In the tail-end blowing mechanism, the floating roller rod 10 is mounted on the material roller support 5 via a rotary bearing 9. The upper end of the floating roller rod 10 is connected to the floating roller 8, and the lower end of the floating roller rod 10 is connected to the weight 11. The floating roller 8 and the weight 11 in the tail-end blowing mechanism can rotate around the rotary bearing 9. Multiple sets of tail-end blowing mechanisms are installed on the material roller support 5.

[0029] The floating roller 8 is connected to the first section 8a and the second section 8b of the floating roller by a connecting rod 8c in the middle. A rigid tube 12 is fixed on the connecting rod 8c. One end of the rigid tube 12 is an air inlet 13, and the other end is connected to the tail end air inlet pipe 14. The upper edge 8d of the floating roller 8 is higher than the lower edge 4 of the tail end 3 of the square tube, and the lower edge 8e of the floating roller is lower than the lower edge 4 of the tail end. The upper edge of the air inlet 13 is lower than the upper edge 8d of the floating roller, and the lower edge of the air inlet 13 is higher than the lower edge 4 of the tail end.

[0030] A method for operating a synchronous frequency clean air system includes the following steps:

[0031] (1) Square tube cutting and dust collection

[0032] Cut at a point between the first end 2 and the last end 3 of the square tube, and simultaneously activate the dust collection device to collect dust during the cutting process;

[0033] (2) Blow air at the head end

[0034] Start the air pump at the beginning. The gas enters the square tube at the beginning 2 along the air inlet pipe 7 at the beginning. The cutting dust in the square tube is blown back to the cutting chamber and sucked away by the dust collection device.

[0035] After the entire square tube is cut, the head end clamping device 15 releases its clamp, causing the head end air inlet pipe 7 to return to its original position, ready for the next operation.

[0036] (3) Blow air at the tail end

[0037] Start the air pump at the tail end. The gas flows along the air inlet pipe 14 and the rigid pipe 12 from the air outlet 13 into the tail end 3 of the square tube, blowing the cutting dust inside the square tube back into the cutting chamber, where it is sucked away by the dust collection device.

[0038] After cutting, the square tube 1 moves forward along the material roller 6. The lower edge 4 of the tail end 3 of the square tube touches the floating roller 8. The floating roller 8 rotates around the rotating bearing 9, driving the rigid tube 12 to press down under the square tube 1. When cutting again, the other tail end blowing mechanism in front of the tail end 4 of the square tube works to blow air until all cutting is completed, and then the tail end air pump is turned off after a few seconds.

[0039] The cut square tube is moved away by a crane, and the floating roller 8 rotates in the opposite direction around the rotating bearing 9 under the action of the weight 11 until the floating roller 8 returns to the center and waits for the next operation.

[0040] When the tail end of the square tube is being cut, the clamping device holds the head end of the square tube at the feed roller conveyor. At this time, the cutting dust from the tail end spreads along the tube towards the head end and then emerges from the head end, polluting the environment. At this moment, the air inlet pipe at the head end of the clamping device is activated, blowing air into the tube and blowing the cutting dust inside the tube into the cutting chamber, where it is sucked away by a high-power dust collection device, ensuring a dust-free operation at the work site.

[0041] When the square tube is being cut, the tail end is positioned on the discharge roller conveyor. At this time, cutting fumes from the head end spread along the tube towards the tail end, polluting the environment. Simultaneously, a multi-segment air-blowing device on the discharge roller conveyor activates, blowing air into the tube to draw the cutting fumes into the cutting chamber, where they are then sucked away by a high-powered dust collector, ensuring a dust-free operation. The air-blowing device on the discharge roller conveyor is integrated with floating rollers. Before the square tube touches the floating roller, air is blown into the tube through the air duct on the roller. Upon contact, the roller rotates, pressing the air duct downwards to prevent impact damage. After the square tube is removed, the floating roller lifts and returns to its normal position. Multiple floating rollers are installed on the discharge roller conveyor to accommodate square tubes of varying lengths. The air-blowing and cutting functions are linked: air-blowing starts during cutting and stops a few seconds after cutting ends, ensuring energy conservation and environmental protection.

[0042] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A same-frequency clean wind system for plasma cutting, comprising a material roller (6) arranged on a material roller support (5), and a square tube (1) arranged on the material roller (6); the square tube (1) comprises a square tube head end (2) and a square tube tail end (3), and a cutting position of the square tube is arranged at a position between the square tube head end (2) and the square tube tail end (3); characterized in that: The first end clamping device (15) is arranged at the first end of the square tube (2), the first end air inlet pipe (7) is fixed on the first end clamping device (15), and an air inlet of the first end air inlet pipe (7) is inserted into the first end of the square tube (2); ​ The tail end blowing mechanism is arranged at the tail end of the square tube (3), the first end air inlet pipe and the tail end air inlet mechanism blow the cutting smoke in the square tube back to the cutting chamber, and the cutting smoke is sucked away by the dust collecting device; the floating roller rotating rod (10) in the tail end blowing mechanism is arranged on the material roller support (5) through the rotating bearing (9); the upper end of the floating roller rotating rod (10) is connected with the floating roller (8), and the lower end of the floating roller rotating rod (10) is connected with the weight (11); The floating roller (8) is connected with the floating roller first section (8a) and the floating roller second section (8b) through the connecting rod (8c) in the middle, the hard pipe (12) is fixed on the connecting rod (8c), one end of the hard pipe (12) is the blowing port (13), and the other end of the hard pipe (12) is connected with the tail end air inlet pipe (14); The upper edge of the floating roller (8) is higher than the tail end lower edge (4) of the tail end of the square tube (3), and the lower edge of the floating roller (8) is lower than the tail end lower edge (4); the upper edge of the blowing port (13) is lower than the upper edge of the floating roller (8), and the lower edge of the blowing port (13) is higher than the tail end lower edge (4); The floating roller (8) and the weight (11) in the tail end blowing mechanism can rotate around the rotating bearing (9), and a plurality of tail end blowing mechanisms are arranged on the material roller support (5).

2. The method of claim 1, wherein the same frequency cleaning wind system is characterized in that, The method comprises the following steps: (1) cutting and dust collecting of the square tube Cutting is performed at a position between the first end of the square tube (2) and the tail end of the square tube (3), and the dust collecting device is started to collect the cutting dust; (2) blowing at the first end The first end air inlet pump is started at the same time of cutting, the gas enters into the first end of the square tube (2) along the first end air inlet pipe (7), the cutting smoke in the square tube is blown back to the cutting chamber, and the cutting smoke is sucked away by the dust collecting device; the first end air inlet pump is turned off several seconds later after cutting is completed; After the whole square tube is completely cut, the first end clamping device (15) is loosened, the first end air inlet pipe (7) is returned, and the next work is waited; (3) blowing at the tail end The tail end air inlet pump is started at the same time of cutting, the gas enters into the tail end of the square tube (3) along the tail end air inlet pipe (14), the hard pipe (12) and the blowing port (13), the cutting smoke in the square tube is blown back to the cutting chamber, and the cutting smoke is sucked away by the dust collecting device; the tail end air inlet pump is turned off several seconds later after cutting is completed; The square tube (1) is advanced along the material roller (6) after cutting, the tail end lower edge (4) of the tail end of the square tube (3) collides with the floating roller (8), the floating roller (8) rotates around the rotating bearing (9), and the hard pipe (12) is pressed below the square tube (1); The other tail end blowing mechanisms in front of the tail end of the square tube (3) are worked to blow again when cutting is performed again, and the blowing is performed until all cutting is completed; The square tube after cutting is adjusted away by the crane, the floating roller (8) rotates reversely around the rotating bearing (9) under the action of the weight (11), and the floating roller (8) is returned to the normal position, and the next work is waited.

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