Waste gas collecting mechanism of multi-head straight flame cutting machine

Abstract

The invention discloses a multi-head straight flame cutting machine waste gas collecting mechanism which comprises a mounting seat, the upper side of the mounting seat is connected with a collecting assembly, and the collecting assembly comprises a hydraulic cylinder assembly arranged at the top of the mounting seat; and the adjusting part is installed at the extending end of the bottom of the hydraulic cylinder assembly, the adjusting part comprises a moving frame, a screw rod is rotationally connected into the moving frame, and a first motor is arranged on the left side of the moving frame. According to the waste gas collecting mechanism of the multi-head straight flame cutting machine, a first motor, a screw rod, a hydraulic cylinder assembly and a moving frame are matched, and the moving blocks, the shielding frame and a first filter plate cover the outer sides of a plurality of groups of spray heads of the multi-head straight flame cutting machine by adjusting the distance and height of a plurality of groups of moving blocks, a limiting rod, a spring, the shielding frame and the first filter plate; and the exhaust gas generated by flame cutting is extracted through cooperation of the gas extraction piece, the cooling piece, the first pipeline and the first filter plate.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas collection for flame cutting machines, in particular to a waste gas collection mechanism for multi-head straight strip flame cutting machines. Background Art

[0002] When a multi-head straight-strip flame cutting machine is in use, a corresponding exhaust gas collection device is required to recycle and process the generated exhaust gas. Reference publication number CN215027061U is a exhaust gas collection mechanism for a multi-head straight-strip flame cutting machine, comprising a flame cutting machine body, a collection box fixedly connected to the flame cutting machine body, a box door provided on the collection box, and an air pump fixedly connected to the collection box. Through the action of the filter, the exhaust gas can be filtered to prevent the exhaust gas from polluting the environment. The filter will vibrate during filtering to prevent the filter from being blocked, thereby improving the exhaust gas filtration efficiency. As described in the above patent, when the existing exhaust gas collection device for a multi-head straight-strip flame cutting machine is used, most of them are difficult to respectively shield and filter and extract the exhaust gas according to the multiple groups of nozzles in the multi-head straight-jump flame cutting machine, which easily causes cutting debris to splash, and it is difficult to synchronously extract and filter the exhaust gas on the lower side of the cut plate, resulting in poor exhaust gas collection efficiency and affecting the subsequent recovery of cutting impurities. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a waste gas collection mechanism for a multi-head straight-strip flame cutting machine, which solves the problems of the device blocking multiple groups of nozzles in the cutting machine and poor exhaust filtration effect, affecting the waste gas collection efficiency and subsequent impurity recovery.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A waste gas collection mechanism for a multi-head straight flame cutting machine includes a mounting seat, and a collection component for collecting waste gas from the multi-head straight flame cutting machine is connected to the upper side of the mounting seat, and the collection component includes:

[0005] A hydraulic cylinder assembly is arranged on the top of the mounting seat;

[0006] An adjusting member is installed at the bottom extension end of the hydraulic cylinder assembly and is used to adjust the position of the exhaust gas collection end. The adjusting member includes a moving frame installed at the bottom of the hydraulic cylinder assembly. A screw is rotatably connected in the moving frame. A first motor for driving the screw is arranged on the left side of the moving frame. Eight groups of moving blocks are threadedly connected to the screw. Two groups of limit rods are vertically installed on the upper side of the moving block. A spring is arranged on the moving block near the outer side of the limit rod. A shielding frame is fixedly connected to the bottom of the spring and is vertically slidably connected to the limit rod and the moving frame respectively. A first filter plate is installed on the shielding frame near the inner wall of the moving frame. A first pipe fixedly connected to the first filter plate is arranged on the outer side of the upper end of the shielding frame;

[0007] A discharge piece, arranged at the front end of the bottom of the mounting seat, for discharge from the waste recycling machine;

[0008] A cooling component is arranged on the left side of the mounting seat and is used to extract exhaust gas for cooling;

[0009] The air extraction component is arranged on the mounting seat and connected with the temperature reduction component and is used for extracting air for the regulating component and the discharging component.

[0010] Preferably, the screw rod is provided with opposite threads near the adjacent moving frame side, the first motor output end is coaxially fixedly connected to the screw rod, the upper side of the moving frame is provided with sliding rods respectively slidably connected to the eight groups of moving blocks, and a stop block is installed at the bottom of the limit rod.

[0011] Preferably, the discharge member includes a conveying shell fixedly connected to the front end of the lower side of the mounting seat, a second motor is arranged on the right side of the conveying shell, an auger driven by the second motor is rotatably connected in the conveying shell, a receiving frame is arranged on the upper side of the conveying shell corresponding to the lower end of the adjusting member, a second filter plate is horizontally slidably connected to the upper side of the receiving frame, a cylinder assembly for adjusting the horizontal position of the second filter plate is arranged on the outer side of the receiving frame, and an array of second pipes connected to the cooling member are arranged on the rear side of the second filter plate.

[0012] Preferably, the output end of the second motor is coaxially fixedly connected to the auger, a discharge port is provided on the left side of the conveying shell, and a square groove slidably connected to the second filter plate is provided on the rear side of the receiving frame.

[0013] Preferably, the cooling component includes a water pump arranged on the left side of the mounting seat, a first bifurcated pipe is installed at the discharge end of the water pump, a group of cooling pipes are respectively installed on the upper and lower sides of the first bifurcated pipe, a first air extraction plate and a second air extraction plate are respectively installed on the outer sides of the two groups of cooling pipes, the first air extraction plate and the second air extraction plate are both connected to the air extraction component, the first air extraction plate is fixedly connected to the first pipeline, the second air extraction plate is connected to the discharge component, and a reflux pipe is provided on the right side of the two groups of cooling pipes.

[0014] Preferably, the vacuum component includes an vacuum pump arranged on the right side of the mounting seat, a second bifurcated pipe connected to the cooling component is installed at the vacuum end of the vacuum pump, a three-way valve is installed on the exhaust side of the vacuum pump, and conduits are provided on the front and upper sides of the three-way valve. A group of filter tanks with built-in activated carbon nets are respectively installed at the lower ends of the front sides of the two groups of conduits, and a detection shell is installed at the bottom of the two groups of filter tanks.

[0015] Preferably, the upper and lower sides of the filter tank are fixedly connected to the conduit and the detection shell respectively through flanges, a gas concentration sensor electrically connected to an external controller is provided on the inner side of the detection shell, and an exhaust port is provided on the right side of the detection shell.

[0016] Preferably, mounting screw holes are provided on both sides of the mounting seat, and the first filter plate is an arc-shaped plate and the inner wall is flush with the inner wall of the shielding frame.

[0017] Beneficial Effects

[0018] The present invention provides an exhaust gas collection mechanism for a multi-head straight strip flame cutting machine. Compared with the prior art, it has the following beneficial effects:

[0019] (1) The exhaust gas collection mechanism of the multi-head straight strip flame cutting machine is provided with an adjustment member in the device to make the first motor, the screw, the hydraulic cylinder assembly, and the moving frame cooperate. By adjusting the spacing and height of the array moving block, the limit rod, the spring, the shielding frame, and the first filter plate, the shielding moving block, the shielding frame, and the first filter plate are arranged outside the array nozzle of the multi-head straight strip flame cutting machine. The exhaust gas generated by the flame cutting is extracted by the cooperation of the exhaust member, the cooling member, the first pipeline, and the first filter plate. After the flame cutting is completed, the height of the adjustment member is adjusted so that the moving block scrapes the surface of the shielding frame and the first filter plate to achieve the stripping of the attached impurities. This arrangement enables the exhaust gas collection end to cover and exhaust the outer end of the multiple groups of nozzles of the cutting machine, thereby improving the exhaust gas extraction efficiency and having a certain shielding effect on the splash generated by the flame cutting, and having the function of stripping the impurities retained at the filter end.

[0020] (2) The exhaust gas collection mechanism of the multi-head straight strip flame cutting machine is provided with a discharge member in the device. During the flame cutting process of the nozzle, the cooling member cooperates with the exhaust member so that the second pipe and the second filter plate exhaust gas treatment is carried out on the lower side of the plate. The blocked solid impurities are retained on the surface of the second filter plate. After the flame cutting is completed, the cylinder assembly adjusts the horizontal position of the second filter plate so that the receiving frame scrapes off the impurities retained on the upper side of the second filter plate. The scraped impurities fall into the conveying shell, and the second motor cooperates with the auger to guide out the impurities retained in the conveying shell. This arrangement cooperates with the adjusting member to respectively exhaust gas treatment on the upper and lower sides of the plate, and has the functions of removing impurities at the filter end, gathering and guiding out solid impurities, reducing the subsequent processing steps, and improving the cleaning efficiency.

[0021] (3) The exhaust gas collection mechanism of the multi-head straight flame cutting machine is provided with a cooling component and an exhaust component in the device. The exhaust pump cooperates with each other through the second bifurcated pipe, the first exhaust plate, the first pipeline, the second exhaust plate, and the second pipeline to extract the exhaust gas through the first filter plate and the second filter plate. The exhaust gas is injected into a group of filter tanks through a three-way valve and a group of conduits, so that the activated carbon net in the filter tank adsorbs the exhaust gas. When the exhaust gas concentration reaches a critical value, the three-way valve is reversed to allow the other group of conduits and the activated carbon net in the filter tank to adsorb the exhaust gas, and the original filter tank is replaced to achieve uninterrupted collection of the exhaust gas. In the above process, the water pump cooperates with the water extraction pipe, the first bifurcated pipe, and the two groups of cooling pipes to cool the gas passing through the first exhaust plate and the second exhaust plate through heat exchange to avoid desorption of the activated carbon net due to overheating of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a partially cutaway stereoscopic view of the present invention;

[0023] Figure 2 It is a partial enlarged view of the adjusting member of the present invention;

[0024] Figure 3 It is an enlarged cross-sectional view of the discharge member of the present invention;

[0025] Figure 4 It is an enlarged view of the cooling element of the present invention;

[0026] Figure 5 is an enlarged view of the air extraction member of the present invention;

[0027] Figure 6 It is a stereogram of the present invention.

[0028] In the figure: 1. mounting base; 2. hydraulic cylinder assembly; 3. adjusting member; 31. moving frame; 32. screw; 33. first motor; 34. moving block; 35. limiting rod; 36. spring; 37. shielding frame; 38. first filter plate; 39. first pipeline; 4. discharging member; 41. conveying shell; 42. second motor; 43. auger; 44. receiving frame; 45. cylinder assembly; 46. second filter plate; 47. second pipeline; 5. cooling member; 51. water pump; 52. first bifurcated pipe; 53. first exhaust plate; 54. second exhaust plate; 55. cooling pipe; 6. exhaust member; 61. exhaust pump; 62. second bifurcated pipe; 63. three-way valve; 64. conduit; 65. filter tank; 66. detection shell. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] refer to Figure 1-6 , the present invention provides the following three technical solutions:

[0031] The first embodiment: an exhaust gas collection mechanism for a multi-head straight strip flame cutting machine, comprising a mounting seat 1, a collecting assembly for collecting exhaust gas from the multi-head straight strip flame cutting machine is connected to the upper side of the mounting seat 1, and the collecting assembly comprises: a hydraulic cylinder assembly 2, which is arranged on the top of the mounting seat 1; an adjusting member 3, which is installed at the bottom extension end of the hydraulic cylinder assembly 2 and is used to adjust the position of the exhaust gas collection end, the adjusting member 3 comprises a moving frame 31 installed at the bottom of the hydraulic cylinder assembly 2, a screw rod 32 is rotatably connected in the moving frame 31, a first motor 33 for driving the screw rod 32 is arranged on the left side of the moving frame 31, eight groups of moving blocks 34 are threadedly connected to the screw rod 32, two groups of limiting rods 35 are vertically installed on the upper side of the moving blocks 34, a spring 36 is arranged on the moving blocks 34 near the outer side of the limiting rod 35, and a shielding frame 37 which is respectively vertically slidably connected to the limiting rod 35 and the moving frame 31 is fixedly connected at the bottom of the spring 36;

[0032] A first filter plate 38 is installed on the shielding frame 37 near the inner wall of the moving frame 31, and a first pipe 39 fixedly connected to the first filter plate 38 is arranged on the outer side of the upper end of the shielding frame 37; a discharge member 4 is arranged at the front end of the bottom of the mounting seat 1 for exporting the waste recycling machine; a cooling member 5 is arranged on the left side of the mounting seat 1 for extracting exhaust gas for cooling; an exhaust member 6 is arranged on the mounting seat 1 and connected to the cooling member 5 and is used to exhaust air for the adjusting member 3 and the discharge member 4; the screw rod 32 is provided with opposite threads near the adjacent moving frame 31, the output end of the first motor 33 is coaxially fixedly connected to the screw rod 32, the upper side of the moving frame 31 is provided with sliding rods respectively connected to eight groups of moving blocks 34 for sliding, and a stopper is installed at the bottom of the limit rod 35 with the upper side fitting the shielding frame 37; mounting screw holes are provided on both sides of the mounting seat 1, the first filter plate 38 is an arc-shaped plate and the inner wall is flush with the inner wall of the shielding frame 37;

[0033] The position of the adjusting device is adjusted so that the moving blocks 34 are symmetrically arranged on both sides of the nozzle end of the multi-head paper strip flame cutting machine, and the first motor 33 and the screw 32 cooperate to adjust the spacing between the moving blocks 34, the limit rod 35, the spring 36, the shielding frame 37 and the first filter plate 38 on both sides of the nozzle, and cooperate with the hydraulic cylinder assembly 2 and the moving frame 31 to make the shielding moving blocks 34, the shielding frame 37 and the first filter plate 38 cover the outside of the nozzle. In the process of the nozzle spraying flame to cut the plate, the exhaust gas generated by the flame cutting is extracted through the exhaust part 6, the cooling part 5, the first pipeline 39 and the first filter plate 38. The solid impurities in the exhaust gas are retained on the surface of the first filter plate 38. After the flame cutting is completed, the height of the adjusting part 3 is continuously adjusted so that the moving block 34 scrapes the surface of the shielding frame 37 and the first filter plate 38 to achieve the peeling of the attached impurities;

[0034] The second implementation mode is mainly different from the first implementation mode in that:

[0035] The discharge member 4 includes a conveying shell 41 fixedly connected to the front end of the lower side of the mounting seat 1, a second motor 42 is arranged on the right side of the conveying shell 41, an auger 43 driven by the second motor 42 is rotatably connected in the conveying shell 41, a receiving frame 44 is arranged on the upper side of the conveying shell 41 corresponding to the lower end of the adjusting member 3, a second filter plate 46 is horizontally slidably connected to the upper side of the receiving frame 44, a cylinder assembly 45 for adjusting the horizontal position of the second filter plate 46 is arranged on the outer side of the receiving frame 44, and an array of second pipes 47 connected to the cooling member 5 are arranged on the rear side of the second filter plate 46;

[0036] The output end of the second motor 42 is coaxially fixedly connected with the auger 43, a discharge port is provided on the left side of the conveying shell 41, and a square groove slidably connected with the second filter plate 46 is provided on the rear side of the receiving frame 44; during the flame cutting process of the nozzle, the cooling member 5 cooperates with the exhaust member 6 to extract the exhaust gas from the lower side of the plate through the second pipe 47 and the second filter plate 46, and the blocked solid impurities are retained on the surface of the second filter plate 46. After the flame cutting is completed, the cylinder assembly 45 adjusts the horizontal position of the second filter plate 46, so that the receiving frame 44 scrapes off the impurities retained on the second filter plate 46, and the scraped impurities fall into the conveying shell 41, and the second motor 42 cooperates with the auger 43 to guide the impurities retained in the conveying shell 41 out;

[0037] The third implementation mode is mainly different from the second implementation mode in that:

[0038] The cooling member 5 comprises a water pump 51 arranged on the left side of the mounting seat 1, a water pumping pipe is arranged at the water pumping end of the water pump 51, a first bifurcated pipe 52 is arranged at the water discharge end of the water pump 51, a group of cooling pipes 55 are respectively arranged on the upper side and the lower side of the first bifurcated pipe 52, a first air extraction plate 53 and a second air extraction plate 54 are respectively arranged on the outer sides of the two groups of cooling pipes 55, the first air extraction plate 53 and the second air extraction plate 54 are both connected to the air extraction member 6, the first air extraction plate 53 is fixedly connected to the first pipeline 39, the second air extraction plate 54 is fixedly connected to the second pipeline 47 in the discharge member 4, and a return pipe is arranged on the right side of the two groups of cooling pipes 55;

[0039] The air extraction member 6 comprises an air extraction pump 61 arranged on the right side of the mounting seat 1, a second bifurcated pipe 62 connected to the cooling member 5 is installed at the air extraction end of the air extraction pump 61, the second bifurcated pipe 62 is respectively fixedly connected to the first air extraction plate 53 and the second air extraction plate 54, a three-way valve 63 is arranged on the exhaust side of the air extraction pump 61, a conduit 64 is arranged on the front side and the upper side of the three-way valve 63, a group of filter tanks 65 with built-in activated carbon nets are respectively installed at the lower ends of the front sides of the two groups of conduits 64, and a detection shell 66 is installed at the bottom of the two groups of filter tanks 65; the upper and lower sides of the filter tanks 65 are respectively fixedly connected to the conduit 64 and the detection shell 66 through flanges, a gas concentration sensor electrically connected to the external controller is arranged on the inner side of the detection shell 66, an exhaust port is arranged on the right side of the detection shell 66, and the first pipeline 39, the second pipeline 47, the first bifurcated pipe 52, and the second bifurcated pipe 62 are all corrugated pipes;

[0040] The exhaust pump 61 cooperates with each other through the second bifurcated pipe 62, the first exhaust plate 53, the first pipeline 39, the second exhaust plate 54, and the second pipeline 47 to extract the exhaust gas through the first filter plate 38 and the second filter plate 46, and then the exhaust gas is injected into a group of filter tanks 65 through the three-way valve 63 and a group of conduits 64, so that the activated carbon net in the filter tank 65 adsorbs the exhaust gas, and then the exhaust gas is introduced into the detection shell 66. The gas concentration sensor in the detection shell 66 detects the exhaust gas concentration. When the exhaust gas concentration is After the temperature reaches the critical value, the three-way valve 63 is reversed. At this time, the exhaust gas is injected into another group of filter tanks 65 through the three-way valve 63 and another group of conduits 64 to replace the saturated filter tanks 65. In the above process, the water pump 51 draws water from the outside through the water pumping pipe, and then the water is injected into the two groups of cooling pipes 55 through the first bifurcated pipe 52. The water flowing through the cooling pipes 55 cools the gas passing through the first exhaust plate 53 and the second exhaust plate 54 through heat exchange, and finally the water flows back to the outside water source through the reflux pipe.

[0041] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] When in use, the user installs the mounting base 1 on the front side of the nozzle array of the multi-head straight strip flame cutting machine, so that the shielding frames 37 of the array are symmetrically arranged on both sides of the nozzle, and starts the first motor 33. The first motor 33 drives the symmetrical moving blocks 34, the limiting rod 35, the spring 36, and the shielding frame 37 to move toward the nozzle through the screw 32. After the two groups of symmetrical moving blocks 34 are attached to each other, the first motor 33 is turned off, and the plate to be cut is transported to the receiving frame 44 through the external conveying component, and the height of the adjusting member 3 is adjusted by the hydraulic cylinder assembly 2. After the bottom of the shielding frame 37 contacts the plate, it slides upward along the limiting rod 35 and squeezes the spring 36. The spring 36 generates elastic force to press the shielding frame 37 against the upper end of the plate, horizontally move the plate and start the multi-head straight jump flame cutting machine, so that its nozzle cuts the plate;

[0043] In the above process, the air pump 61 and the water pump 51 are started, and the air pump 61 extracts the waste gas generated by the cutting on the upper side of the nozzle through the second bifurcated pipe 62, the first air extraction plate 53, the first pipeline 39, and the first filter plate 38. At the same time, the lower side of the second bifurcated pipe 62 extracts the waste gas from the lower side of the plate through the second air extraction plate 54, the second pipeline 47, and the second filter plate 46, wherein the impurities in the waste gas are respectively retained on the surfaces of the first filter plate 38 and the second filter plate 46, and the extracted waste gas is injected into the filter tank 65 through the three-way valve 63 and the conduit 64, and the activated carbon net in the filter tank 65 adsorbs the waste gas. After the cutting is completed and the waste gas is extracted After that, continue to adjust the height of the adjusting member 3. Under the action of the plate, the shielding frame 37 continues to move upward. When the first filter plate 38 on the inner wall of the shielding frame 37 passes the moving block 34, the moving block 34 scrapes the outer surface of the first filter plate 38 to promote the falling of attached impurities. The position of the second filter plate 46 is adjusted by the cylinder assembly 45, so that the receiving frame 44 scrapes the upper surface of the second filter plate 46 to promote the falling of impurities. The fallen impurities fall into the conveying shell 41. When the plate is separated from the shielding frame 37, the impurities retained on its upper side also fall into the conveying shell 41, allowing the second motor 42 to drive the auger 43 to rotate, so that the auger 43 can export the impurities retained in the conveying shell 41.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas collection mechanism for a multi-head straight strip flame cutting machine, comprising a mounting seat, characterized in that: The upper side of the mounting seat is connected with a collection assembly for collecting exhaust gas from a multi-head straight flame cutting machine, and the collection assembly includes: A hydraulic cylinder assembly is arranged on the top of the mounting seat; An adjusting member is installed at the bottom extension end of the hydraulic cylinder assembly and is used to adjust the position of the exhaust gas collection end. The adjusting member includes a moving frame installed at the bottom of the hydraulic cylinder assembly. A screw is rotatably connected in the moving frame. A first motor for driving the screw is arranged on the left side of the moving frame. Eight groups of moving blocks are threadedly connected to the screw. Two groups of limit rods are vertically installed on the upper side of the moving block. A spring is arranged on the moving block near the outer side of the limit rod. A shielding frame is fixedly connected to the bottom of the spring and is vertically slidably connected to the limit rod and the moving frame respectively. A first filter plate is installed on the shielding frame near the inner wall of the moving frame. A first pipe fixedly connected to the first filter plate is arranged on the outer side of the upper end of the shielding frame; A discharge piece, arranged at the front end of the bottom of the mounting seat, for discharge from the waste recycling machine; A cooling component is arranged on the left side of the mounting seat and is used to extract exhaust gas for cooling; The air extraction component is arranged on the mounting seat and connected with the temperature reduction component and is used for extracting air for the regulating component and the discharging component.

2. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 1, characterized in that: The screw rod is provided with opposite threads near the adjacent moving frame side, the first motor output end is coaxially fixedly connected with the screw rod, the upper side of the moving frame is provided with sliding rods which are respectively slidably connected with eight groups of moving blocks, and a stopper is installed at the bottom of the limit rod.

3. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 1, characterized in that: The discharging member includes a conveying shell fixedly connected to the front end of the lower side of the mounting seat, a second motor is arranged on the right side of the conveying shell, an auger driven by the second motor is rotatably connected in the conveying shell, a receiving frame is arranged on the upper side of the conveying shell corresponding to the lower end of the adjusting member, a second filter plate is horizontally slidably connected to the upper side of the receiving frame, a cylinder assembly for adjusting the horizontal position of the second filter plate is arranged on the outer side of the receiving frame, and an array of second pipes connected to the cooling member are arranged on the rear side of the second filter plate.

4. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 3 is characterized in that: The output end of the second motor is coaxially fixedly connected to the auger, a discharge port is provided on the left side of the conveying shell, and a square groove slidably connected to the second filter plate is provided on the rear side of the receiving frame.

5. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 1, characterized in that: The cooling component includes a water pump arranged on the left side of the mounting seat, a first bifurcated pipe is installed at the discharge end of the water pump, a group of cooling pipes are respectively installed on the upper and lower sides of the first bifurcated pipe, a first air pumping plate and a second air pumping plate are respectively installed on the outer sides of the two groups of cooling pipes, the first air pumping plate and the second air pumping plate are both connected to the air pumping component, the first air pumping plate is fixedly connected to the first pipeline, the second air pumping plate is connected to the discharge component, and a reflux pipe is provided on the right side of the two groups of cooling pipes.

6. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 1, characterized in that: The vacuum component includes an vacuum pump arranged on the right side of the mounting seat, a second bifurcated pipe connected to the cooling component is installed at the vacuum end of the vacuum pump, a three-way valve is arranged on the exhaust side of the vacuum pump, and conduits are arranged on the front and upper sides of the three-way valve. A group of filter tanks with built-in activated carbon nets are respectively installed at the lower ends of the front sides of the two groups of conduits, and a detection shell is installed at the bottom of the two groups of filter tanks.

7. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 6, characterized in that: The upper and lower sides of the filter tank are fixedly connected to the conduit and the detection shell through flanges respectively. A gas concentration sensor electrically connected to an external controller is provided on the inner side of the detection shell, and an exhaust port is provided on the right side of the detection shell.

8. The exhaust gas collection mechanism of a multi-head straight strip flame cutting machine according to claim 1, characterized in that: Both sides of the mounting seat are provided with mounting screw holes, and the first filter plate is an arc-shaped plate and the inner wall thereof is flush with the inner wall of the shielding frame.

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