Dust removal system of plasma cutting machine

Abstract

The utility model belongs to the field of environmental protection and dust removal, and particularly discloses a dust removal system of a plasma cutting machine, which adopts the technical scheme that the dust removal system comprises a dust hood fixed on the plasma cutting machine, a dust collection trolley moving along with a cutting rack is arranged in the dust hood, and a first dust collection port and a second dust collection port are formed in the side edge of the dust collection trolley. The first dust collection opening is communicated with an air inlet cover fixed to the top of the dust collection cover through a dust collection pipeline, a ventilation groove is formed in the lower portion of the dust collection trolley, the ventilation groove is laid in the direction of a movement track of the plasma cutting machine, the ventilation groove is communicated with a dust remover through an air pipe, and a dust outlet of the dust remover is communicated with an air inlet of an induced draft fan. And an exhaust outlet of the induced draft fan is communicated with the exhaust pipe. Flying dust generated in the working process of the plasma arc cutting machine equipment is extracted in time, the device can adapt to different movement tracks, the needed air volume is small, dust removal efficiency is high, implementation is convenient, and cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of environmental protection dust removal, in particular to a dust removal system for a plasma cutting machine. Background Art

[0002] Plasma arc cutting equipment is widely used in modern industry to process metal materials. A large amount of dust will be generated in the process of cutting steel plates. This dust will cause great pollution hazards: 1. Seriously affect the health of workshop workers and easily cause diseases in the respiratory system and other aspects; 2. Dust falls on motors, cranes and other equipment, seriously affecting the maintenance and service life of the equipment; 3. Dust is diffused in the workshop, the visibility of the workshop is reduced, and the workers' operation is affected; 4. Dust is diffused in the workshop and drifts outdoors, polluting the environment inside and outside the workshop; The dust pollution hazards and resource waste generated by the operation of the plasma arc cutting machine are so serious that it is necessary to control it.

[0003] Conventionally, a dust removal device is arranged outside the plasma arc cutting machine to absorb the dust generated by the arc cutting machine. However, this method can only absorb a part of the dust generated by the plasma arc cutting machine, and a lot of dust still enters the workshop, and the dust removal efficiency is not high. Utility Model Content

[0004] In view of the problems existing in the existing dust removal methods, a plasma cutting machine dust removal system is proposed. The utility model can timely extract and process the dust generated by the plasma arc cutting machine equipment during operation, can adapt to different motion tracks, requires a small air volume, has high dust removal efficiency, is easy to implement and has low cost.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a dust removal system for a plasma cutting machine, comprising a dust hood fixed on the plasma cutting machine, a dust suction trolley that moves with the cutting machine frame is arranged in the dust hood, a first dust suction port and a second dust suction port are opened on the side of the dust suction trolley, the first dust suction port is connected with the air inlet hood fixed on the top of the dust suction hood through a dust suction pipe, a ventilation slot is arranged under the dust suction trolley, the ventilation slot is laid along the direction of the moving track of the plasma cutting machine, the ventilation slot is connected with the dust collector through the air duct, the dust outlet of the dust collector is connected with the air inlet of the induced draft fan, and the exhaust outlet of the induced draft fan is connected with the exhaust pipe.

[0006] The dust suction trolley is a box structure with an opening at the bottom, two upper rollers are arranged at intervals on the top of the box, two lower rollers are arranged at the bottom of the box, and the first dust suction port and the second dust suction port are arranged side by side on the side of the box.

[0007] The top of the ventilation slot is preset with an air inlet channel arranged along the length direction of the ventilation slot, and a tape is laid above the air inlet channel. The tape passes around the lower roller and the upper roller of the box body, and the dust suction trolley moves with the cutting frame to drive the tape and the air inlet channel to separate.

[0008] The air inlet channel is laterally spaced apart with a plurality of support bars.

[0009] The dust hood comprises a frame structure, a sealing plate is installed on the outer side of the frame structure, a maintenance door is opened on the sealing plate, a sealing rubber plate is installed at the bottom of the frame structure, and the bottom surface of the sealing rubber plate is placed on the upper surface of the workpiece to be cut.

[0010] Compared with the prior art, the utility model has the following beneficial effects: after the utility model adopts the ventilation slot sealed by the tape and the mobile trolley structure, the mobile trolley moves along the ventilation slot according to the activity of the plasma arc cutting machine, and a corresponding ventilation port is formed between the ventilation slot and the dust collecting hood, and the dust removal working parts outside the ventilation port are fully sealed. The dust generated by the plasma arc cutting machine equipment during operation can be immediately extracted and processed, and can adapt to different movement tracks, and the required air volume is small, the dust removal efficiency is high, the implementation is convenient, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the main view structure of the dust hood.

[0014] Figure 3 This is a schematic diagram of the installation of the dust hood and plasma cutting machine.

[0015] Figure 4 for Figure 3 Schematic diagram of the side structure.

[0016] Figure 5 Schematic diagram of the location of the dust collection cart and ventilation slots.

[0017] Figure 6 It is a schematic diagram of the structure of the dust collection vehicle.

[0018] Figure 7 for Figure 6 Schematic diagram of the middle AA direction.

[0019] Figure 8 Schematic diagram of the structure of the ventilation slot.

[0020] In the figure, 1 is a plasma cutting machine, 2 is a dust hood, 21 is a frame structure, 22 is a maintenance door, 23 is a sealing rubber plate, 3 is a ventilation slot, 31 is a tape, 32 is a support bar, 4 is a dust suction trolley, 41 is a first dust suction port, 42 is a second dust suction port, 43 is an upper roller, 44 is a lower roller, 5 is an air inlet hood, 6 is a dust collector, 7 is an induced draft fan, 8 is an exhaust pipe, and 9 is a workpiece. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 3 As shown, a dust removal system for a plasma cutting machine includes a dust hood 2 fixed on a plasma cutting machine 1, and the dust hood 2 seals the cutting frame of the plasma cutting machine 1 inside. A dust suction trolley 4 is arranged inside the dust hood 2 and moves with the cutting frame. A first dust suction port 41 and a second dust suction port 42 are opened on the side of the dust suction trolley 4. The first dust suction port 41 is connected to an air inlet hood 5 fixed on the top of the dust hood 2 through a dust suction pipe.

[0022] A ventilation slot 3 is provided below the dust collecting trolley 4, and the ventilation slot 3 is laid along the direction of the moving track of the plasma cutting machine 1. When the dust collecting trolley 4 moves with the cutting machine frame, the air inlet of the ventilation slot 3 is opened, and the dust adsorbed by the dust collecting trolley 4 is sent into the ventilation slot 3 through the opened air inlet of the ventilation slot 3. Then the ventilation slot 3 is connected to the dust collector 6 through the air duct, the dust outlet of the dust collector 6 is connected to the air inlet of the induced draft fan 7, and the exhaust outlet of the induced draft fan 7 is connected to the exhaust pipe 8.

[0023] The working process of the utility model is as follows: under the action of the ventilator, the dust-containing gas enters the interior of the dust suction cart 4 from the air inlet hood 5 and the second dust suction port 42. The air inlet hood 5 and the second dust suction port 42 are respectively located at the upper and lower parts of the dust suction hood 2. All the dust in the dust suction hood 2 is sucked into the dust suction cart 4, and then enters the dust collector 6 through the ventilation slot 3. The dust-removed gas passes through the induced draft fan 7 and is discharged from the exhaust pipe 8 to the outside of the workshop.

[0024] The above embodiment introduces the general working process of the utility model, but does not limit the specific connection method between the dust suction vehicle 4 and the ventilation slot 3. In order to enable those skilled in the art to better understand the working process of the utility model, Figure 5 As shown, in this embodiment, the structures of the dust suction cart 4 and the ventilation slot 3 and the connection relationship between the two are specifically disclosed.

[0025] like Figure 6-Figure 7 The dust suction trolley 4 is a box structure with an opening at the bottom. Two upper rollers 43 are arranged at intervals on the top of the box, and two lower rollers 44 are arranged at the bottom of the box. The first dust suction port 41 and the second dust suction port 42 are arranged side by side on the side of the box.

[0026] like Figure 8As shown, the top of the ventilation slot 3 is preset with an air inlet channel arranged along the length direction of the ventilation slot 3, and a tape 31 is laid above the air inlet channel. In specific implementation, a commonly used transport tape 31 is selected to meet the sealing and flexibility requirements. The tape 31 passes around the lower roller 44 and the upper roller 43 of the box body, and the dust suction trolley 4 moves with the cutting frame to drive the tape 31 and the air inlet channel to separate.

[0027] The top of the ventilation slot 3 is sealed with an adhesive tape 31, which is placed on a roller. When the dust collecting trolley 4 moves, the adhesive tape 31 is separated from the air inlet channel, so that the opening below the dust collecting trolley 4 is connected to the air inlet channel, and the dust-containing air enters the ventilation slot 3 from the dust collecting trolley 4. In this way, the dust can be transferred from the dust collecting trolley 4 to the ventilation slot 3, and the sealing of the dust collecting trolley 4 and the ventilation slot 3 can be ensured.

[0028] In addition, in order to facilitate the support of the adhesive tape 31, a plurality of support strips 32 are arranged at intervals in the horizontal direction on the air inlet passage. The support strips 32 not only play a supporting role, but also facilitate the tight coverage of the adhesive tape 31.

[0029] On the basis of the above embodiment, in order to further improve the sealing performance of the dust hood 2, a sealing rubber plate 23 is added in this embodiment, and the specific configuration is as follows:

[0030] The dust hood 2 includes a frame structure 21, a sealing plate is installed outside the frame structure 21, a maintenance door 22 is opened on the sealing plate, and a sealing rubber plate 23 is installed at the bottom of the frame structure 21. The bottom surface of the sealing rubber plate 23 rests on the upper surface of the workpiece 9 to be cut.

[0031] During the forward movement of the steel plate to be cut, the sealing rubber sheet 23 is always in contact with the steel plate to be cut to prevent dust from being dispersed from the gap between the two. Moreover, the dust gathered at the lower part of the dust hood 2 is directly sucked into the dust cart through the second dust suction port 42.

[0032] In the utility model, under the action of the ventilator, dust-containing gas is sucked in by the dust hood 2, enters the dust cart, ventilation slot 3, dust collector 6, and is discharged into the atmosphere by the ventilator through the air duct. When the dust-producing process equipment moves, the dust cart moves in parallel with it under the action of the equipment. When the dust cart moves to a new position, the position of the ventilation hole formed on the upper surface of the ventilation slot 3 also changes accordingly, and the dust-containing gas enters the ventilation hole at the new position, completing the flow conversion from the mobile cart to the ventilation slot 3. The required air volume is small, the dust removal efficiency is high, the implementation is convenient, and the cost is low.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A dust removal system for a plasma cutting machine, characterized in that: The invention comprises a dust hood (2) fixed on a plasma cutting machine (1), a dust trolley (4) moving with the cutting machine frame being arranged in the dust hood (2), a first dust suction port (41) and a second dust suction port (42) being provided on the side of the dust trolley (4), the first dust suction port (41) being connected to an air inlet hood (5) fixed on the top of the dust hood (2) through a dust suction pipe, a ventilation slot (3) being arranged below the dust trolley (4), the ventilation slot (3) being arranged along the direction of the moving track of the plasma cutting machine (1), the ventilation slot (3) being connected to a dust collector (6) through an air duct, the dust outlet of the dust collector (6) being connected to the air inlet of an induced draft fan (7), and the air outlet of the induced draft fan (7) being connected to an exhaust pipe (8).

2. A plasma cutting machine dust removal system according to claim 1, characterized in that: The dust suction trolley (4) is a box structure with an opening at the bottom, two upper rollers (43) are arranged at intervals on the top of the box, two lower rollers (44) are arranged at the bottom of the box, and the first dust suction port (41) and the second dust suction port (42) are arranged side by side on the side of the box.

3. A plasma cutting machine dust removal system according to claim 2, characterized in that: The top of the ventilation slot (3) is provided with an air inlet passage extending along the length of the ventilation slot (3); an adhesive tape (31) is laid above the air inlet passage; the adhesive tape (31) passes around a lower roller (44) and an upper roller (43) of the box body; the dust suction trolley (4) moves with the cutting frame, driving the adhesive tape (31) and the air inlet passage to separate.

4. A plasma cutting machine dust removal system according to claim 3, characterized in that: The air inlet channel is laterally spaced apart with a plurality of support bars (32).

5. The dust removal system for a plasma cutting machine according to claim 3, characterized in that: The dust hood (2) comprises a frame structure (21), a sealing plate is installed on the outside of the frame structure (21), a maintenance door (22) is provided on the sealing plate, a sealing rubber plate (23) is installed on the bottom of the frame structure (21), and the bottom surface of the sealing rubber plate (23) rests on the upper surface of the workpiece (9) to be cut.

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