Smoke exhaust device of electric welding machine

Abstract

The utility model discloses a smoke exhaust device of an electric welding machine, which belongs to the technical field of electric welding machines and comprises a vehicle body, two sides of the vehicle body are respectively provided with two moving mechanisms, the top of the vehicle body is provided with a filter tank, and one end of the vehicle body is fixedly sleeved with a metal shaping hose. And the end part of the metal shaping hose extends to the inner cavity of the filter tank. According to the utility model, the exhaust fan is utilized to enable the metal shaping hose and the smoke suction cover to generate suction force, so that smoke at the welding part is sucked away, sweeps in the smoke are filtered by the filter screen in the inner cavity of the filter box, and the filtered smoke is directly discharged to an area far away from the welding part from the long air supply hose; according to the smoke exhaust hood, waste chips in smoke are collected and filtered, the smoke exhaust hood can be adjusted to any angle through the metal shaping hose, so that the smoke exhaust hood is suitable for smoke exhaust at welding positions at different positions, and the practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of electric welding machine technology, and more specifically, to a smoke exhaust device for an electric welding machine. Background Technology

[0002] Electric welding machines use the high-temperature electric arc generated when the positive and negative electrodes are short-circuited momentarily to melt the welding material on the welding rod and the material being welded, so that the objects in contact are joined together. During the welding process, electric welding machines produce odorous fumes, which can be harmful to the health of workers if not treated in time.

[0003] A search revealed that utility model patent CN217290845U discloses a fume extraction device suitable for welding machines, comprising a traveling trolley, an extraction mechanism, a blowing mechanism, an air supply component, a suction component, a limiting mechanism, a CPU, and a temperature sensor. The extraction mechanism is located at the center of one side of the traveling trolley. Two blowing mechanisms are symmetrically arranged on either side of the extraction mechanism. The air supply component is connected to the air inlet of the blowing mechanism. The suction component is connected to the air outlet of the extraction mechanism. The limiting mechanism is located at the bottom of the traveling trolley. The temperature sensor is located at the bottom of the extraction mechanism, away from the traveling trolley. The signal output of the temperature sensor is connected to the signal input of the CPU. This patent guides toxic gases generated during welding to a location away from welding personnel, thereby protecting the health of the workers.

[0004] However, the aforementioned patents have the following shortcomings: the position of the suction component is relatively fixed, making it inconvenient to exhaust smoke from welding points at different locations, and it is also inconvenient to collect waste debris from the smoke, resulting in poor practicality; in addition, although the use of bar magnets can stabilize the trolley's movement on the workpiece, waste debris from the workpiece easily adheres to the magnets, making it difficult to clean the debris from the magnets, and long-term use affects the stability of the trolley's movement. Therefore, we propose a smoke extraction device for an electric welding machine. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a fume extraction device for an electric welding machine.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A fume extraction device for an electric welding machine includes a vehicle body with two moving mechanisms on each side. A filter groove is provided on the top of the vehicle body. A metal flexible tube is fixedly sleeved at one end of the vehicle body, with its end extending into the inner cavity of the filter groove. A fume hood is fixedly connected to the other end of the metal flexible tube. An exhaust fan is fixedly installed in the inner cavity of the vehicle body, with its input end extending into the inner cavity of the filter groove and its output end extending to the outside of the vehicle body and fixedly connected to a long air supply hose. A filter box is fitted inside the inner cavity of the filter groove, and a filter screen is fixedly sleeved inside the inner cavity of the filter box. A handle is fixedly installed on the top surface of the filter box.

[0008] In a preferred embodiment of this utility model, the moving mechanism includes a mounting base fixedly connected to the side of the vehicle body. A multi-stage electric push rod is fixedly mounted on the mounting base. The output end of the multi-stage electric push rod is fixedly connected to a mounting box. A servo motor is fixedly mounted inside the mounting box. The output shaft of the servo motor extends to the outside of the mounting box and is fixedly connected to a moving wheel. A detachable outer shell is fitted on the outside of the moving wheel. Multiple strip magnets are fixedly fitted on the outside of the detachable outer shell. Multiple arc-shaped slots are formed on the outside of the moving wheel. Multiple arc-shaped blocks are provided on the inner side of the detachable outer shell. The arc-shaped blocks are fitted into the inner cavity of the arc-shaped slots. A pick-up seat is provided on the side of the detachable outer shell.

[0009] As a preferred embodiment of this utility model, a temperature sensor is fixedly installed at the end of the vehicle body, and a control panel is fixedly installed on the side of the vehicle body.

[0010] As a preferred embodiment of this utility model, the bottom surface of the vehicle body is provided with two support frames, and each of the two support frames is rotatably connected with a cam.

[0011] In a preferred embodiment of this utility model, the side of the filter box and the inner wall of the filter tank are fitted together.

[0012] In a preferred embodiment of this utility model, the outer diameter of the movable wheel is equal to the inner diameter of the detachable outer shell, and the inner diameter of the arc-shaped slot is equal to the outer diameter of the arc-shaped block.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In this utility model, the exhaust fan is used to generate suction between the metal shaped hose and the fume hood, thereby drawing away the fumes from the welding point. The filter screen inside the filter box filters out the debris in the fumes. The filtered fumes are directly discharged from the long air supply hose to the area away from the welding point, thus achieving the collection and filtration of debris in the fumes. In addition, the metal shaped hose can be used to adjust the fume hood to any angle to adapt to the fume exhaust at welding points in different locations.

[0015] (2) In this utility model, the bar magnet on the outside of the detachable shell ensures the stability of the vehicle body placed on the workpiece. When the detachable shell and the moving wheel rotate, the vehicle body is driven to move. When iron filings are attracted to the bar magnet on the outside of the detachable shell, the detachable shell is removed from the moving wheel by hand. This is to process the metal waste attracted to the bar magnet on the outside of the detachable shell and ensure that the vehicle body can move smoothly on the workpiece. Attached Figure Description

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a bottom view of the vehicle body of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the vehicle body of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the filter box of this utility model;

[0020] Figure 5 This is a schematic diagram showing the disassembled moving wheel and detachable outer shell of this utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Vehicle body; 2. Moving mechanism; 3. Filter tank; 4. Filter box; 5. Filter screen; 6. Metal shaped flexible hose; 7. Fume hood; 8. Exhaust fan; 9. Long air supply hose; 10. Handle; 11. Mounting base; 12. Multi-stage electric push rod; 13. Mounting box; 14. Servo motor; 15. Casters; 16. Removable outer shell; 17. Pick-up base; 18. Bar magnet; 19. Arc-shaped slot; 20. Arc-shaped locking block; 21. Support frame; 22. Casters; 23. Temperature sensor; 24. Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] Please see Figure 1-5 A fume extraction device for an electric welding machine includes a vehicle body 1, two moving mechanisms 2 respectively arranged on both sides of the vehicle body 1, a filter groove 3 arranged on the top of the vehicle body 1, a metal shaped flexible hose 6 fixedly sleeved at one end of the vehicle body 1, the end of the metal shaped flexible hose 6 extending into the inner cavity of the filter groove 3, a fume hood 7 fixedly connected to the other end of the metal shaped flexible hose 6, an exhaust fan 8 fixedly installed in the inner cavity of the vehicle body 1, the input end of the exhaust fan 8 extending into the inner cavity of the filter groove 3, the output end of the exhaust fan 8 extending to the outside of the vehicle body 1 and fixedly connected to a long air supply hose 9, a filter box 4 sleeved in the inner cavity of the filter groove 3, a filter screen 5 fixedly sleeved in the inner cavity of the filter box 4, and a handle 10 fixedly installed on the top surface of the filter box 4.

[0028] In this embodiment, the metal shaping hose 6 is made of metal or alloy material, and has the characteristics of flexibility and fold resistance. It can be bent at will without breaking easily. The smoking hood 7 can be adjusted to different heights and positions through the metal shaping hose 6.

[0029] For details, please refer to Figure 1 , Figure 2 and Figure 5The moving mechanism 2 includes a mounting base 11 fixedly connected to the side of the vehicle body 1. A multi-stage electric push rod 12 is fixedly mounted on the mounting base 11. The output end of the multi-stage electric push rod 12 is fixedly connected to a mounting box 13. A servo motor 14 is fixedly mounted in the inner cavity of the mounting box 13. The output shaft of the servo motor 14 extends to the outside of the mounting box 13 and is fixedly connected to a moving wheel 15. A detachable outer shell 16 is fitted on the outer side of the moving wheel 15. Multiple bar magnets 18 are fixedly fitted on the outer side of the detachable outer shell 16. Multiple arc-shaped slots 19 are opened on the outer side of the moving wheel 15. Multiple arc-shaped blocks 20 are provided on the inner side of the detachable outer shell 16. The arc-shaped blocks 20 are fitted into the inner cavity of the arc-shaped slots 19. A pick-up seat 17 is provided on the side of the detachable outer shell 16.

[0030] In this embodiment, the height of the mounting box 13, the moving wheel 15 and the detachable outer shell 16 are adjusted by using a multi-stage electric push rod 12, thereby changing the height at which the detachable outer shell 16 and the moving wheel 15 support the vehicle body 1. The servo motor 14 drives the moving wheel 15 and the detachable outer shell 16 to rotate, thereby driving the vehicle body 1 to move.

[0031] For details, please refer to Figure 1 A temperature sensor 23 is fixedly installed at the end of the vehicle body 1, and a control panel 24 is fixedly installed on the side of the vehicle body 1.

[0032] In this embodiment, the temperature sensor 23 can sense the real-time temperature of the solder joint and determine the distance between the solder joint and the vehicle body 1 by the temperature. It continuously controls the movement of the vehicle body 1 to ensure that the distance between the vehicle body 1 and the solder joint is always within a suitable range, thus achieving the purpose of the vehicle body 1 following the movement of the solder joint. No matter where the solder joint moves, it is always located at the end of the vehicle body 1, ensuring that the smoke is smoothly sucked away by the smoke hood 7. The device is controlled by the control panel 24.

[0033] For details, please refer to Figure 2 The bottom surface of the vehicle body 1 is provided with two support frames 21, and the two support frames 21 are respectively rotatably connected with rollers 22.

[0034] In this embodiment, when two plates are welded together, the chuck 22 is inserted into the seam so that the smoke exhaust device can move in the direction of the weld.

[0035] For details, please refer to Figures 1 to 4 The side of the filter box 4 fits against the inner wall of the filter tank 3.

[0036] In this embodiment, the sealing between the side of the filter box 4 and the inner wall of the filter groove 3 is ensured so that the flue gas drawn by the metal shaped hose 6 can be completely filtered by the filter screen 5 in the filter box 4.

[0037] For details, please refer to Figure 5The outer diameter of the movable wheel 15 is equal to the inner diameter of the detachable outer shell 16, and the inner diameter of the arc-shaped slot 19 is equal to the outer diameter of the arc-shaped block 20.

[0038] In this embodiment, the stability of the detachable outer shell 16 being fitted onto the outside of the moving wheel 15 is ensured, while the stability of the arc-shaped locking block 20 being engaged into the inner cavity of the arc-shaped locking groove 19 is also ensured.

[0039] Working principle: When welding two horizontally joined workpieces, the detachable outer shells 16 on both sides of the vehicle body 1 are placed on the two workpieces, and the chucks 22 at the bottom of the vehicle body 1 are engaged in the weld seam to be welded. At this time, the metal shaping hose 6 is moved so that the fume hood 7 is directly facing the welding point of the welding machine. The exhaust fan 8 is started to generate suction from the fume hood 7, thereby using the suction of the fume hood 7 to guide the welding fumes from the metal shaping hose 6 into the filter box 4 inside the filter tank 3. The filter screen 5 in the filter box 4 filters the waste in the fumes. The filtered fumes are discharged from the long air supply hose 9 to a location away from the construction site. In addition, during the welding process, the weld point moves continuously along the weld seam. The temperature sensor 23 can sense the real-time temperature and use the temperature to determine the distance between the weld point and the vehicle body 1. The servo motor 14 drives the moving wheel 15 and the detachable shell 16 to rotate. The rotation of the detachable shell 16 and the moving wheel 15 drives the vehicle body 1 to move, ensuring that the vehicle body 1 maintains a suitable distance from the welding point. This enables the vehicle body 1 to follow the welding point. No matter where the welding point moves, the fume hood 7 can always suck up the welding fumes. During the rotation of the detachable shell 16, the magnetic attraction between the bar magnet 18 and the workpiece ensures that the vehicle body 1 is stably placed on the workpiece. After the welding is completed, the detachable shell 16 can be pulled outward by holding the pick-up seat 17, so that the detachable shell 16 can be removed from the outside of the moving wheel 15. This allows the metal waste adsorbed on the bar magnet 18 on the outside of the detachable shell 16 to be processed, ensuring that the vehicle body 1 can move smoothly on the workpiece in the future.

[0040] When it is necessary to exhaust smoke from vertical welding, the metal shaping hose 6 is also moved so that the smoke hood 7 is aligned with the initial welding position. During the welding process, the temperature sensor 23 is used to control the distance between the vehicle body 1 and the weld point. At the same time, the output end of the multi-stage electric push rod 12 is extended so that the detachable housing 16 is supported on the ground to support the device. The multi-stage electric push rod 12 also lifts the vehicle body 1 and the smoke hood 7 upwards, thereby ensuring smoke exhaust from the vertical weld.

[0041] When it is necessary to exhaust smoke from welding at a fixed location, simply position the fume hood 7 directly over the welding area to extract the smoke.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A fume extraction device for an electric welding machine, comprising a vehicle body (1), characterized in that: Two moving mechanisms (2) are respectively provided on both sides of the vehicle body (1). A filter groove (3) is provided on the top of the vehicle body (1). A metal shaping hose (6) is fixedly sleeved on one end of the vehicle body (1). The end of the metal shaping hose (6) extends into the inner cavity of the filter groove (3). A smoking hood (7) is fixedly connected to the other end of the metal shaping hose (6). An exhaust fan (8) is fixedly installed in the inner cavity of the vehicle body (1). The input end of the exhaust fan (8) extends into the inner cavity of the filter groove (3). The output end of the exhaust fan (8) extends to the outside of the vehicle body (1) and is fixedly connected to a long air supply hose (9). A filter box (4) is sleeved in the inner cavity of the filter groove (3). A filter screen (5) is fixedly sleeved in the inner cavity of the filter box (4). A handle (10) is fixedly installed on the top surface of the filter box (4).

2. The fume extraction device for an electric welding machine according to claim 1, characterized in that: The moving mechanism (2) includes a mounting base (11) fixedly connected to the side of the vehicle body (1). A multi-stage electric push rod (12) is fixedly mounted on the mounting base (11). The output end of the multi-stage electric push rod (12) is fixedly connected to a mounting box (13). A servo motor (14) is fixedly mounted in the inner cavity of the mounting box (13). The output shaft of the servo motor (14) extends to the outside of the mounting box (13) and is fixedly connected to a moving wheel (15). A detachable outer shell (16) is fitted on the outer side of the moving wheel (15). A plurality of bar magnets (18) are fixedly fitted on the outer side of the detachable outer shell (16). A plurality of arc-shaped slots (19) are opened on the outer side of the moving wheel (15). A plurality of arc-shaped blocks (20) are provided on the inner side of the detachable outer shell (16). The arc-shaped blocks (20) are fitted into the inner cavity of the arc-shaped slots (19). A pick-up seat (17) is provided on the side of the detachable outer shell (16).

3. The fume extraction device for an electric welding machine according to claim 1, characterized in that: A temperature sensor (23) is fixedly installed at the end of the vehicle body (1), and a control panel (24) is fixedly installed on the side of the vehicle body (1).

4. The fume extraction device for an electric welding machine according to claim 1, characterized in that: The bottom surface of the vehicle body (1) is provided with two support frames (21), and the two support frames (21) are respectively rotatably connected with rollers (22).

5. The fume extraction device for an electric welding machine according to claim 1, characterized in that: The side of the filter box (4) is in contact with the inner wall of the filter tank (3).

6. The fume extraction device for an electric welding machine according to claim 2, characterized in that: The outer diameter of the movable wheel (15) is equal to the inner diameter of the detachable outer shell (16), and the inner diameter of the arc-shaped slot (19) is equal to the outer diameter of the arc-shaped block (20).

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