A continuous cutting device for steel structural section processing and a cutting method thereof

Abstract

The application relates to the technical field of steel structure section cutting processing devices, and provides a continuous cutting device for steel structure section processing and a cutting method thereof, which comprises a conveying frame, a blowing mechanism is installed on the outer wall of the conveying frame, the blowing mechanism comprises a frame plate fixedly installed on the outer wall of the conveying frame, a first motor is fixedly connected to the outer wall of the frame plate, an output shaft of the first motor is fixedly connected with a rotating rod through a shaft coupling, one end of the rotating rod is fixedly connected with a cam, and the blowing mechanism further comprises a sleeve fixedly installed on the outer wall of the conveying frame. By starting the first motor, the cam fixedly connected to one end of the rotating rod can be rotated, the cam can extrude the receiving plate, the piston fixedly connected to one end of the movable rod can slide along the sleeve, and the discharged air can be conveyed into the blowing plate through the first air guide pipe, so that the dust attached to the surface of the steel structure section can be conveniently blown away when the steel structure section is conveyed to pass through the bottom of the blowing plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure section cutting processing device, in particular to a continuous cutting device for steel structure section processing and a cutting method thereof. BACKGROUND

[0002] Steel structure section is a kind of metal material used for building steel structure buildings, bridges, towers and other engineering structures, usually with specific shape, size and mechanical properties, and the continuous cutting device for steel structure section processing is a kind of equipment specially used for continuous cutting of steel structure section, which usually uses various cutting technologies such as flame cutting, plasma cutting, laser cutting, etc., through high temperature, high energy beam and other ways to make the steel structure section rapidly melt or gasify in local area, so as to realize the purpose of cutting. During the cutting process, the cutting device moves continuously along the preset path of the steel structure section, while the cutting tool continuously works to complete the continuous cutting operation of the section;

[0003] Therefore, a new type of steel structure processing steel rapid cutting device with the publication number CN112743162B is disclosed, which comprises a cutting operation box, a first motor is fixedly installed on the outer side wall of the cutting operation box, the output shaft of the first motor extends to the inside of the cutting operation box and is fixedly connected with a first rotating rod, and the end of the first rotating rod away from the output shaft of the first motor is rotatably connected with the inner side wall of the cutting operation box through a bearing. The two first L-shaped rods can clamp the garbage can, the abutting plate can abut against the garbage can, then the first motor is started to make the garbage can overturn and dump the garbage in the inside of the cutting operation box, and the automatic feeding and tipping mechanism of the whole garbage truck is very stable during work, so that the garbage can does not easily separate during overturning, which reduces a lot of unnecessary trouble for garbage disposal workers.

[0004] The prior art in the above has the following defects: it is inconvenient to clean the dust attached to the surface of the steel structure section before cutting processing, which leads to the fact that these dusts cannot be removed in time and conveniently during cutting processing. Without proper cleaning means, these attached dusts will produce a series of adverse effects during the cutting process. For example, dusts may enter the key parts of the cutting equipment, accelerate the wear of the equipment and reduce the service life of the equipment; at the same time, dusts may also mix into the cut section of the cut steel structure section, affect the quality of the cut section, reduce the precision and performance of the product, and bring many inconveniences to the subsequent processing procedures. SUMMARY

[0005] The present application aims to provide a continuous cutting device for steel structure section processing and a cutting method thereof, so as to solve the problem that the prior continuous cutting device for steel structure section processing cannot clean the dust attached to the surface of the steel structure section before cutting processing.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a continuous cutting device for steel structure section processing, comprising a conveying frame;

[0007] A blowing mechanism is mounted on the outer wall of the conveying frame, the blowing mechanism comprises a frame plate fixedly mounted on the outer wall of the conveying frame, a first motor is fixedly connected to the outer wall of the frame plate, a rotating rod is fixedly connected to the output shaft of the first motor through a shaft coupling, a cam is fixedly connected to one end of the rotating rod, and the blowing mechanism further comprises a sleeve fixedly mounted on the outer wall of the conveying frame, a piston is movably connected to the inside of the sleeve, an active rod is fixedly connected to one side of the piston, and a receiving plate is fixedly connected to one end of the active rod;

[0008] A first air guide pipe is fixedly connected to the outer wall of the sleeve, a blowing plate is fixedly connected to one end of the first air guide pipe, a first one-way valve is mounted on the top of the sleeve, and a second one-way valve is mounted on the bottom of the sleeve;

[0009] A laser cutting machine is mounted on the top of the conveying frame, a laser cutting head is movably mounted on one side of the laser cutting machine, and a collection box is mounted on one side of the conveying frame.

[0010] Preferably, the cam and the frame plate constitute a rotating structure through the rotating rod, the cam is movably connected to the receiving plate, the first one-way valve is symmetrically arranged about the central axis of the sleeve, and the second one-way valve is symmetrically arranged about the central axis of the sleeve.

[0011] Preferably, the sleeve is designed in a slotted manner, the sleeve and the piston constitute a sliding structure, a spring is fixedly connected to one side of the receiving plate, and the spring is sleeved on the outer wall of the active rod.

[0012] Preferably, a cleaning mechanism is fixedly connected to the outer wall of the sleeve, the cleaning mechanism comprises a second air guide pipe fixedly mounted on the top of the sleeve, a sealing insertion pipe is fixedly connected to one end of the second air guide pipe, a rotating shaft is clamped and mounted on the outer wall of the sealing insertion pipe, a cleaning roller is fixedly connected to the outer wall of the rotating shaft, a brush is fixedly connected to the outer wall of the cleaning roller, and a blowing hole is formed in the inside of the cleaning roller.

[0013] Preferably, the rotating shaft is designed in a hollow manner, and the rotating shaft and the sealing insertion pipe constitute a rotating structure.

[0014] Preferably, the cleaning roller and the conveying frame constitute a rotating structure through the rotating shaft, and the brush is arranged in a ring shape about the central axis of the cleaning roller.

[0015] Preferably, the outer wall of the rotating shaft is fixedly connected with a first synchronous wheel, the outer wall of the first synchronous wheel is provided with a synchronous belt, the inner wall of the synchronous belt is provided with a second synchronous wheel, the first synchronous wheel is in meshing connection with the synchronous belt, and the synchronous belt is in meshing connection with the second synchronous wheel.

[0016] Preferably, the outer wall of the conveying frame is fixedly connected with a feeding mechanism, the feeding mechanism comprises a second motor fixedly installed on one side of the conveying frame, the output shaft of the second motor is fixedly connected with a movable shaft through a shaft coupling, the outer wall of the movable shaft is fixedly connected with a conveying roller, the outer wall of the movable shaft is fixedly connected with a gear, and the outer wall of the gear is provided with a toothed belt.

[0017] Preferably, the conveying roller and the conveying frame constitute a rotating structure through the movable shaft, the gear is in meshing connection with the toothed belt, and the gear is arranged at equal intervals on the inner wall of the toothed belt.

[0018] A cutting method of a continuous cutting device for steel structure section machining, comprising the following steps:

[0019] S1. Start the first motor, so that the cam fixedly connected to one end of the rotating rod rotates, so that the cam extrudes the receiving plate, drives the piston fixedly connected to one end of the movable rod to slide along the sleeve, so that air enters the sleeve through the second one-way valve, and is discharged from the first one-way valve with the movement of the piston, when the piston slides back, the air is discharged through the first one-way valve on the other side, and the discharged air is transported to the blowing plate through the first air duct, when the steel structure section is conveyed through the bottom of the blowing plate, the dust is blown off;

[0020] S2. When the air in the sleeve is compressed, it is transported to the rotating shaft fixedly connected to one end of the sealing plug tube through the second air duct, and then the air is discharged through the air blowing hole in the cleaning roller, so as to clean the dust on the steel structure section;

[0021] S3. When the movable shaft rotates, it can drive the second synchronous wheel to rotate, under the action of the synchronous belt, the first synchronous wheel can rotate, so that the rotating shaft rotates, and then drives the brush fixedly connected to the outer wall of the cleaning roller to clean the steel structure section;

[0022] S4. Start the second motor, so that the movable shaft rotates, drives the gear to rotate, under the action of the toothed belt, a plurality of gears can rotate, so as to drive a plurality of conveying rollers to rotate, and the steel structure section can be stably fed.

[0023] The continuous cutting device for steel structure section machining and the cutting method thereof have the following advantages:

[0024] Through setting the blowing mechanism, the first air duct, the blowing plate, the first one-way valve and the second one-way valve, through starting the first motor, the cam fixedly connected at one end of the rotating rod can be rotated, the cam extrudes the bearing plate, drives the piston fixedly connected at one end of the movable rod to slide along the sleeve, air enters into the sleeve through the second one-way valve, and is discharged from the first one-way valve along with the movement of the piston, and the discharged air is transported to the blowing plate through the first air duct, when the steel structure profile is conveyed to pass through the bottom of the blowing plate, dust is blown, and the effect of conveniently blowing the dust attached to the surface of the steel structure profile is achieved.

[0025] Further, under the action of the spring, the piston can reciprocate, when the piston slides back, air is discharged through the first one-way valve on the other side, and the efficiency of blowing the dust on the steel structure profile is further improved.

[0026] Further, when the air in the sleeve is compressed, the air is transported to the rotating shaft fixedly connected at one end of the sealing insertion tube through the second air duct, and then the air is discharged through the air blowing hole arranged in the cleaning roller, and the dust on the steel structure profile can be blown.

[0027] Further, when the movable shaft rotates, the second synchronous wheel can be driven to rotate, under the action of the synchronous belt, the first synchronous wheel can be driven to rotate, the rotating shaft is driven to rotate, and then the brush fixedly connected to the outer wall of the cleaning roller can clean the steel structure profile, the quality of cleaning the dust attached to the surface of the steel structure profile is further improved, and the precision of cutting and processing the steel structure profile is improved.

[0028] By setting the feeding mechanism, through starting the second motor, the movable shaft can be driven to rotate, the gears can be driven to rotate under the action of the toothed belt, and then the plurality of conveying rollers can be driven to rotate, and the steel structure profile can be stably fed. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a three-dimensional structure schematic view of the present application;

[0030] Figure 2 It is a front view schematic view of the present application;

[0031] Figure 3 It is a blowing mechanism top view schematic view of the present application;

[0032] Figure 4 It is a sleeve three-dimensional sectional view of the present application;

[0033] Figure 5 It is a cam three-dimensional view of the present application;

[0034] Figure 6 It is a cleaning mechanism top view schematic view of the present application;

[0035] Figure 7 is a perspective view of the cleaning roller of the present application;

[0036] Figure 8 is a perspective view of the blowing plate of the present application;

[0037] Figure 9 is a top view of the present application;

[0038] Figure 10 is a top view of the feeding mechanism of the present application.

[0039] The reference signs in the drawings are explained as follows: 1, conveying frame; 2, blowing mechanism; 21, frame plate; 22, first motor; 23, rotating rod; 24, cam; 25, sleeve; 26, piston; 27, movable rod; 28, receiving plate; 3, first air guide pipe; 4, blowing plate; 5, cleaning mechanism; 51, second air guide pipe; 52, sealing insertion pipe; 53, rotating shaft; 531, first synchronous wheel; 532, synchronous belt; 533, second synchronous wheel; 54, cleaning roller; 55, brush; 56, air blowing hole; 6, feeding mechanism; 61, second motor; 62, movable shaft; 63, conveying roller; 64, gear; 65, toothed belt; 7, laser cutting machine; 8, laser cutting head; 9, collecting box; 10, first one-way valve; 11, second one-way valve. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0041] Please refer to Figures 1-10 The present application provides a continuous cutting device for steel structure section machining, which comprises a conveying frame 1.

[0042] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 8As shown, the outer wall of the conveying frame 1 is provided with a blowing mechanism 2, the blowing mechanism 2 comprises a frame plate 21 fixedly installed on the outer wall of the conveying frame 1, the outer wall of the frame plate 21 is fixedly connected with a first motor 22, the output shaft of the first motor 22 is fixedly connected with a rotating rod 23 through a shaft coupling, one end of the rotating rod 23 is fixedly connected with a cam 24, the blowing mechanism 2 further comprises a sleeve 25 fixedly installed on the outer wall of the conveying frame 1, the inside of the sleeve 25 is movably connected with a piston 26, one side of the piston 26 is fixedly connected with a movable rod 27, one end of the movable rod 27 is fixedly connected with an accommodating plate 28, the outer wall of the sleeve 25 is fixedly connected with a first air duct 3, one end of the first air duct 3 is fixedly connected with a blowing plate 4, the top of the sleeve 25 is provided with a first check valve 10, the bottom of the sleeve 25 is provided with a second check valve 11, the cam 24 and the frame plate 21 form a rotating structure through the rotating rod 23, the cam 24 is movably connected with the accommodating plate 28, the first check valve 10 is symmetrically arranged about the central axis of the sleeve 25, the second check valve 11 is symmetrically arranged about the central axis of the sleeve 25, the sleeve 25 is designed in a slotted manner, the sleeve 25 and the piston 26 form a sliding structure, one side of the accommodating plate 28 is fixedly connected with a spring, and the spring is sleeved on the outer wall of the movable rod 27.

[0043] By starting the first motor 22, the cam 24 fixedly connected with one end of the rotating rod 23 can be rotated, so that the cam 24 extrudes the accommodating plate 28, drives the piston 26 fixedly connected with one end of the movable rod 27 to slide along the sleeve 25, so that air enters the sleeve 25 through the second check valve 11, and is discharged from the first check valve 10 along with the movement of the piston 26, and the discharged air is delivered to the blowing plate 4 through the first air duct 3, when the steel structure profile is conveyed to pass through the bottom of the blowing plate 4, the dust is blown away, and under the action of the spring, the piston 26 can slide back and forth, when the piston 26 slides back, air is discharged through the first check valve 10 on the other side, which further improves the efficiency of blowing dust on the steel structure profile.

[0044] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 6 , and Figure 7As shown, the outer wall of the sleeve 25 is fixedly connected with the cleaning mechanism 5, the cleaning mechanism 5 includes a second air duct 51 fixedly installed on the top of the sleeve 25, one end of the second air duct 51 is fixedly connected with a sealing pipe 52, the outer wall of the sealing pipe 52 is clampedly installed with a rotating shaft 53, the outer wall of the rotating shaft 53 is fixedly connected with a cleaning roller 54, the outer wall of the cleaning roller 54 is fixedly connected with a brush 55, the inside of the cleaning roller 54 is provided with a blowing hole 56, the rotating shaft 53 is designed as a hollow type, the rotating shaft 53 and the sealing pipe 52 constitute a rotating structure, the cleaning roller 54 constitutes a rotating structure with the conveying frame 1 through the rotating shaft 53, the brush 55 is arranged in a ring shape around the central axis of the cleaning roller 54, the outer wall of the rotating shaft 53 is fixedly connected with a first synchronous wheel 531, the outer wall of the first synchronous wheel 531 is installed with a synchronous belt 532, the inner wall of the synchronous belt 532 is installed with a second synchronous wheel 533, the first synchronous wheel 531 is engagedly connected with the synchronous belt 532, and the synchronous belt 532 is engagedly connected with the second synchronous wheel 533.

[0045] When the air in the sleeve 25 is compressed, it is transported into the rotating shaft 53 installed at one end of the sealing pipe 52 through the second air duct 51, and then the air is discharged through the blowing hole 56 in the inside of the cleaning roller 54, so as to blow off the dust on the steel structure profile, when the movable shaft 62 rotates, the second synchronous wheel 533 is driven to rotate, under the action of the synchronous belt 532, the first synchronous wheel 531 is driven to rotate, so that the rotating shaft 53 rotates, and then drives the brush 55 fixedly connected with the outer wall of the cleaning roller 54 to clean the steel structure profile.

[0046] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 10 , the top of the conveying frame 1 is installed with a laser cutting machine 7, one side of the laser cutting machine 7 is movably installed with a laser cutting head 8, one side of the conveying frame 1 is installed with a collection box 9, the outer wall of the conveying frame 1 is fixedly connected with a feeding mechanism 6, the feeding mechanism 6 includes a second motor 61 fixedly installed on one side of the conveying frame 1, the output shaft of the second motor 61 is fixedly connected with a movable shaft 62 through a shaft coupling, the outer wall of the movable shaft 62 is fixedly connected with a conveying roller 63, the outer wall of the movable shaft 62 is fixedly connected with a gear 64, the outer wall of the gear 64 is installed with a toothed belt 65, the conveying roller 63 constitutes a rotating structure with the conveying frame 1 through the movable shaft 62, the gear 64 is engagedly connected with the toothed belt 65, and the gear 64 is arranged at equal intervals on the inner wall of the toothed belt 65.

[0047] By starting the second motor 61, the movable shaft 62 can be rotated, driving the gear 64 to rotate, under the action of the toothed belt 65, a plurality of gears 64 can be rotated, thereby driving a plurality of conveying rollers 63 to rotate, so that the steel structure section bar can be stably fed. When the steel structure section bar is conveyed to the lower side of the laser cutting machine 7, the laser cutting machine 7 is started, the laser cutting head 8 is controlled to move to the required cutting position, and the laser cutting head 8 is started. The steel structure section bar can be cut, and the cutting waste falls into the collecting box 9 for collection.

[0048] A cutting method of a continuous cutting device for steel structure section bar processing, comprising the following steps:

[0049] S1. Starting the first motor 22 can make the cam 24 fixedly connected at one end of the rotating rod 23 rotate, so that the cam 24 extrudes the receiving plate 28, drives the piston 26 fixedly connected at one end of the movable rod 27 to slide along the sleeve 25, so that air enters the sleeve 25 through the second one-way valve 11, and is discharged from the first one-way valve 10 with the movement of the piston 26. When the piston 26 slides back, air is discharged through the first one-way valve 10 on the other side, and the discharged air is delivered to the blowing plate 4 through the first air duct 3. When the steel structure section bar is conveyed through the bottom of the blowing plate 4, the dust is blown away;

[0050] S2. When the air in the sleeve 25 is compressed, it is delivered to the rotating shaft 53 fixedly connected at one end of the sealing plug tube 52 through the second air duct 51, and then the air is discharged through the air blowing hole 56 in the cleaning roller 54, so that the dust on the steel structure section bar can be cleaned;

[0051] S3. When the movable shaft 62 rotates, it can drive the second synchronous pulley 533 to rotate, under the action of the synchronous belt 532, the first synchronous pulley 531 can be rotated, so that the rotating shaft 53 is rotated, and then the brush 55 fixedly connected to the outer wall of the cleaning roller 54 can be used to clean the steel structure section bar;

[0052] S4. Starting the second motor 61 can make the movable shaft 62 rotate, driving the gear 64 to rotate, under the action of the toothed belt 65, a plurality of gears 64 can be rotated, thereby driving a plurality of conveying rollers 63 to rotate, so that the steel structure section bar can be stably fed.

[0053] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some of the technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous cutting device for steel structure section processing, comprising a conveying frame (1); Characterized in that: The outer wall of the conveying frame (1) is provided with a blowing mechanism (2), the blowing mechanism (2) comprises a frame plate (21) fixedly installed on the outer wall of the conveying frame (1), the outer wall of the frame plate (21) is fixedly connected with a first motor (22), the output shaft of the first motor (22) is fixedly connected with a rotating rod (23) through a shaft coupling, one end of the rotating rod (23) is fixedly connected with a cam (24), the blowing mechanism (2) further comprises a sleeve (25) fixedly installed on the outer wall of the conveying frame (1), the inside of the sleeve (25) is movably connected with a piston (26), one side of the piston (26) is fixedly connected with a movable rod (27), one end of the movable rod (27) is fixedly connected with an accommodating plate (28); The outer wall of the sleeve (25) is fixedly connected with a first air guide pipe (3), one end of the first air guide pipe (3) is fixedly connected with a blowing plate (4), the top of the sleeve (25) is provided with a first check valve (10), the bottom of the sleeve (25) is provided with a second check valve (11); The top of the conveying frame (1) is provided with a laser cutting machine (7), one side of the laser cutting machine (7) is movably provided with a laser cutting head (8), one side of the conveying frame (1) is provided with a collecting box (9), the cam (24) and the frame plate (21) constitute a rotating structure through the rotating rod (23), the cam (24) is movably connected with the accommodating plate (28), the first check valve (10) is symmetrically arranged about the central axis of the sleeve (25), the second check valve (11) is symmetrically arranged about the central axis of the sleeve (25), the outer wall of the sleeve (25) is fixedly connected with a cleaning mechanism (5), the cleaning mechanism (5) comprises a second air guide pipe (51) fixedly installed on the top of the sleeve (25), one end of the second air guide pipe (51) is fixedly connected with a sealing insertion tube (52), the outer wall of the sealing insertion tube (52) is clampedly provided with a rotating shaft (53), the outer wall of the rotating shaft (53) is fixedly connected with a cleaning roller (54), the outer wall of the cleaning roller (54) is fixedly connected with a brush (55), and the inside of the cleaning roller (54) is provided with a blowing hole (56).

2. A continuous cutting device for processing a steel structural section according to claim 1, characterized in that: The sleeve (25) is designed as a slotted type, the sleeve (25) and the piston (26) constitute a sliding structure, one side of the accommodating plate (28) is fixedly connected with a spring, and the spring is sleeved on the outer wall of the movable rod (27).

3. A continuous cutting device for processing a steel structural section according to claim 1, characterized in that: The rotating shaft (53) is designed as a hollow type, and the rotating shaft (53) and the sealing insertion tube (52) constitute a rotating structure.

4. A continuous cutting device for processing a steel structural section according to claim 1, characterized in that: The cleaning roller (54) and the conveying frame (1) constitute a rotating structure through the rotating shaft (53), and the brush (55) is arranged in a ring shape with the central axis of the cleaning roller (54) as the center.

5. A continuous cutting device for processing a steel structural section according to claim 1, characterized in that: The outer wall of the rotating shaft (53) is fixedly connected with a first synchronous wheel (531), the outer wall of the first synchronous wheel (531) is provided with a synchronous belt (532), the inner wall of the synchronous belt (532) is provided with a second synchronous wheel (533), the first synchronous wheel (531) is engagedly connected with the synchronous belt (532), and the synchronous belt (532) is engagedly connected with the second synchronous wheel (533).

6. A continuous cutting device for processing a steel structural section according to claim 5, characterized in that: The outer wall of the conveying frame (1) is fixedly connected with a feeding mechanism (6), the feeding mechanism (6) comprises a second motor (61) fixedly installed on one side of the conveying frame (1), the output shaft of the second motor (61) is fixedly connected with a movable shaft (62) through a shaft coupling, the outer wall of the movable shaft (62) is fixedly connected with a conveying roller (63), the outer wall of the movable shaft (62) is fixedly connected with a gear (64), and the outer wall of the gear (64) is provided with a toothed belt (65).

7. A continuous cutting device for processing a steel structural section according to claim 6, characterized in that: The conveying roller (63) is rotatably connected with the conveying frame (1) through the movable shaft (62), the gear (64) is engagedly connected with the toothed belt (65), and the gears (64) are arranged at equal intervals on the inner wall of the toothed belt (65).

8. A cutting method of a continuous cutting device for steel structure profile machining, which adopts the continuous cutting device for steel structure profile machining according to claim 7, and comprises the following steps, characterized by: S1. Start the first motor (22) to make the cam (24) fixedly connected to one end of the rotating rod (23) rotate, so that the cam (24) extrudes the receiving plate (28) to drive the piston (26) fixedly connected to one end of the movable rod (27) to slide along the sleeve (25), so that air enters the sleeve (25) through the second one-way valve (11) and is discharged from the first one-way valve (10) along with the movement of the piston (26), when the piston (26) slides back, air is discharged through the other side of the first one-way valve (10), and the discharged air is delivered to the blowing plate (4) through the first air guide pipe (3), when the steel structure profile is conveyed through the bottom of the blowing plate (4), dust is blown off; S2. When the air in the sleeve (25) is compressed, it is delivered to the rotating shaft (53) fixedly connected to one end of the sealing insertion tube (52) through the second air guide pipe (51), and then the air is discharged through the air blowing holes (56) in the cleaning roller (54), so as to clean the dust on the steel structure profile; S3. When the movable shaft (62) rotates, the second synchronous wheel (533) rotates, the first synchronous wheel (531) rotates under the action of the synchronous belt (532), the rotating shaft (53) rotates, and then the brush (55) fixedly connected to the outer wall of the cleaning roller (54) sweeps the steel structure profile; S4. Start the second motor (61) to make the movable shaft (62) rotate, drive the gear (64) to rotate, and make a plurality of gears (64) rotate under the action of the toothed belt (65), so as to drive a plurality of conveying rollers (63) to rotate and stably feed the steel structure profile.

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