Laser cutting machine with flue gas treatment function

Abstract

The utility model relates to the technical field of laser cutting machines, and discloses a laser cutting machine with a flue gas treatment function, which comprises a driving frame and a laser cutter arranged below the driving frame, and a mounting frame is mounted on the outer surface of the laser cutter. According to the laser cutting machine with the flue gas treatment function, the pressure of a pressing ring is dynamically adjusted through a pneumatic push rod of the pre-pressing assembly, the pressing state is monitored in real time in combination with a symmetrical pressure sensor, buckling deformation of a thin plate caused by thermal stress is effectively restrained, meanwhile, a high-temperature workpiece is prevented from suddenly upwarping and colliding with a laser head, and the working efficiency is improved. Sliding friction is converted into rolling friction through the design of circumferential balls at the bottom of the pressing ring, scratches on the surface of a plate are reduced, the plate can flexibly move along with the cutting head, and through the dual-power collaborative design of the centrifugal fan and the draw-off pump, the centrifugal fan provides high air pressure adsorption force, the draw-off pump enhances the negative pressure stability of the long pipeline, and the corrugated pipe is matched with the flexible telescopic characteristic. A smoke suction port is always close to a cutting point when the laser head lifts, and the smoke escape amount is obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting machine technical field, concretely is a kind of laser cutting machine with flue gas treatment. BACKGROUND

[0002] Laser cutting machine is emitted from laser, focuses into high power density laser beam by optical path system, laser beam irradiation to workpiece surface, so that workpiece reaches melting point or boiling point and then completes cutting.

[0003] The existing patent (announcement number: CN213497193U) discloses a kind of laser cutting machine with flue gas treatment, including cabinet, the left end of the cabinet top is fixedly connected with filter box, the left and right ends of the inner side in the filter box inner cavity are all fixedly connected with filter screen, the lower end of the left side of the filter box is equipped with air outlet, the lower end of the right side of the filter box is equipped with air inlet, the left end of the inner side in the air inlet is fixedly installed with first motor by first installation strip, the output end of the first motor is movably connected with first fan blade by first rotating rod, the upper end of the right side of the cabinet is fixedly connected with wind collecting cover by mounting block, the right end of the inner side of the wind collecting cover is fixedly installed with second motor by second installation strip.The utility model is provided with second fan blade, second installation strip, second rotating rod and second motor, reaches the purpose of flue gas treatment, solves the problem that the existing laser cutting machine does not have the function of flue gas treatment, causes the harm to human body by the flue gas generated.

[0004] The second fan blade of the above-mentioned laser cutting machine drives air to flow quickly from right to left, and blows the flue gas generated by cutting to the left side, and the first fan blade sucks the blown flue gas into the inner cavity of filter box for filtering through air inlet, however, in the process of blowing by the second fan blade, flue gas is easy to diffuse to periphery, thereby causing the flue gas amount sucked by the first fan blade to be limited, and the flue gas treatment efficiency is poor. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of laser cutting machine with flue gas treatment, with the advantages of high flue gas treatment efficiency, solves the problems raised in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of laser cutting machine with flue gas treatment, including drive frame and the laser cutting device of drive frame lower setting, the outer surface of the laser cutting device is installed with mounting bracket, the lower part of the mounting bracket is provided with pre-pressing assembly;

[0007] The pre-pressing assembly comprises two pneumatic push rods, both of which are fixedly connected with the mounting frame, and the output ends of both of the pneumatic push rods are fixedly connected with the same fixing ring, the bottom of the fixing ring is provided with two symmetrically arranged pressure sensors, and the bottom monitoring end of both of the pressure sensors is fixedly provided with a pressure ring, and the pressure ring is on the same axis as the laser cutter.

[0008] The back of the drive frame is provided with an extraction pump, the input end of the extraction pump is fixedly communicated with a smoke suction pipe, the bottom end of the smoke suction pipe is fixedly communicated with a corrugated pipe, the bottom end of the corrugated pipe is fixedly communicated with a machine shell, the inside of the machine shell is provided with a fan, the output end of the extraction pump is fixedly communicated with a discharge pipe, the other end of the discharge pipe is fixedly communicated with a smoke storage tank, and the smoke storage tank is fixedly connected with the top of the drive frame.

[0009] Further, both ends of the smoke storage tank are threadedly connected with filter pipes, and the inside of each filter pipe is provided with a filter core.

[0010] Through the above scheme, through the setting of the filter core, the extracted smoke can be effectively filtered and purified, and the pollution to the environment is reduced.

[0011] Further, the outer surface of the machine shell is fixedly provided with a connecting plate, and the other end of the connecting plate is fixedly connected with the mounting frame.

[0012] Through the above scheme, through the connecting plate, the machine shell can move with the mounting frame, thereby realizing the purpose of close-range suction.

[0013] Further, the bottom end of the machine shell is fixedly provided with a grille.

[0014] Through the above scheme, the setting of the grille can prevent large-particle impurities or metal debris from entering the inside of the machine shell, causing damage to the fan and the extraction pump, and can also protect the workers.

[0015] Further, the bottom of the pressure ring is provided with a plurality of circumferentially arranged rolling balls.

[0016] Through the above scheme, the setting of the rolling balls can improve the smoothness of the movement of the pressure ring on the surface of the plate and reduce the friction coefficient with the workpiece.

[0017] Further, the inside of the drive frame is provided with a first electric push rod, and the output end of the first electric push rod is fixedly connected with the laser cutter.

[0018] Through the above scheme, through the setting of the first electric push rod, power can be provided for the up-and-down movement of the laser cutter.

[0019] Further, the fan is a centrifugal fan.

[0020] Through the above scheme, the requirement of rapid extraction of a large amount of smoke gas in the laser cutting process can be met.

[0021] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0022] The laser cutting machine with smoke treatment has the following advantages: the pressure ring pressure is dynamically adjusted by the pneumatic push rod of the pre-pressing assembly, the pressure tightening state is monitored in real time by the symmetrical pressure sensor, the warping deformation of the thin plate caused by thermal stress is effectively inhibited, the collision of the high-temperature workpiece with the laser head is avoided, the sliding friction is converted to rolling friction by the circumferential ball design at the bottom of the pressure ring, the surface scratch of the plate is reduced, the cutting head can be flexibly moved, the high air pressure adsorption force is provided by the centrifugal fan, the negative pressure stability of the long pipeline is enhanced by the extraction pump, the flexible extension characteristics of the corrugated pipe are matched, the smoke suction port is always close to the cutting point when the laser head is lifted, the smoke escape amount is significantly reduced, the filter element is built-in in the detachable filter pipe at both ends of the smoke storage tank, and the smoke gas is purified and filtered. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The whole structure of the application is shown in the figure Figure 1 ;

[0024] Figure 2 The whole structure of the application is shown in the figure Figure 2 ;

[0025] Figure 3 The whole structure of the application is shown in the figure

[0026] Figure 4 The pre-pressing assembly structure of the application is shown in the figure

[0027] Figure 5 The smoke suction pipe structure of the application is shown in the figure

[0028] Figure 6 The smoke storage tank structure of the application is shown in the figure.

[0029] In the figure:

[0030] 1, drive frame; 2, laser cutter; 3, mounting frame;

[0031] 4, pre-pressing assembly; 401, pneumatic push rod; 402, fixed ring; 403, pressure sensor; 404, pressure ring;

[0032] 5, extraction pump; 6, smoke suction pipe; 7, corrugated pipe; 8, machine shell; 9, fan; 10, exhaust pipe; 11, smoke storage tank; 12, filter pipe; 13, filter element; 14, connecting plate; 15, grille; 16, ball; 17, first electric push rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described 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 other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 , the laser cutting machine with flue gas treatment in the embodiment comprises a driving frame 1 and a laser cutting device 2 arranged below the driving frame 1, an installation frame 3 is mounted on the outer surface of the laser cutting device 2, a pre-pressing assembly 4 is arranged below the installation frame 3, a first electric push rod 17 is mounted in the driving frame 1, and the output end of the first electric push rod 17 is fixedly connected with the laser cutting device 2. Through the arrangement of the first electric push rod 17, power can be provided for the up-down movement of the laser cutting device 2.

[0035] Please refer to Figure 1 , Figure 2 and Figure 4 , the pre-pressing assembly 4 comprises two pneumatic push rods 401, both of which are fixedly connected with the installation frame 3, the output ends of the two pneumatic push rods 401 are fixedly connected with the same fixing ring 402, the bottom of the fixing ring 402 is mounted with two symmetrically arranged pressure sensors 403, the bottom monitoring end of each of the two pressure sensors 403 is fixedly mounted with a pressing ring 404, and the pressing ring 404 is on the same axis as the laser cutting device 2. Through the arrangement of the pre-pressing assembly 4, the purpose of pressing around the cutting area can be achieved, the bulging of the thin plate can be effectively avoided, and the cutting precision can be ensured. In the process of moving the laser cutting device 2, the laser cutting device 2 can be protected, the collision between the workpiece stress release bulge caused by high temperature and the laser cutting device 2 can be avoided, and the bottom of the pressing ring 404 is provided with a plurality of circumferentially arranged balls 16. At the same time, the arrangement of the balls 16 can improve the smoothness of the movement of the pressing ring 404 on the surface of the plate and reduce the friction coefficient with the workpiece.

[0036] Please refer to Figure 1 , Figure 5 and Figure 6The back of the driving frame 1 is provided with an extraction pump 5, the input end of the extraction pump 5 is fixedly communicated with a smoke suction pipe 6, the bottom end of the smoke suction pipe 6 is fixedly communicated with a corrugated pipe 7, the bottom end of the corrugated pipe 7 is fixedly communicated with a machine shell 8, the inside of the machine shell 8 is provided with a fan 9, the fan 9 is a centrifugal fan 9, can meet the requirement of rapid extraction of a large amount of smoke gas in the laser cutting process, the output end of the extraction pump 5 is fixedly communicated with a discharge pipe 10, the other end of the discharge pipe 10 is fixedly communicated with a smoke storage tank 11, the smoke storage tank 11 is fixedly connected with the top of the driving frame 1, through the setting of the corrugated pipe 7, can follow in the process of the laser cutting device 2 descending, and cooperates with the double setting of the fan 9 and the extraction pump 5, can effectively improve the suction force.

[0037] Please refer to Figure 1 、 Figure 5 and Figure 6 , both ends of the smoke storage tank 11 are threadedly connected with filter pipes 12, the inside of each filter pipe 12 is provided with a filter core 13, through the setting of the filter core 13, can effectively filter and purify the extracted smoke gas, reduce the pollution to the environment, the outer surface of the machine shell 8 is fixedly provided with a connecting plate 14, the other end of the connecting plate 14 is fixedly connected with the mounting frame 3, through the connecting plate 14, can make the machine shell 8 move with the mounting frame 3, and then realize the purpose of close-range suction, the bottom end of the machine shell 8 is fixedly provided with a grating 15, the setting of the grating 15 can prevent large-particle impurities or metal scraps from entering the inside of the machine shell 8, causing damage to the fan 9 and the extraction pump 5, and can also protect the workers.

[0038] The laser cutting machine with smoke gas treatment in the embodiment, through the dynamic adjustment of the pressure ring 404 pressure by the pneumatic push rod 401 of the pre-pressing assembly 4, combined with the real-time monitoring of the pressing state by the symmetrical pressure sensor 403, effectively suppresses the warping deformation of the thin plate due to thermal stress, and avoids the collision of the high-temperature workpiece with the laser head due to the sudden lifting of the high-temperature workpiece. The design of the circumferential ball 16 at the bottom of the pressure ring 404 converts sliding friction into rolling friction, which not only reduces the scratching of the surface of the plate, but also can move flexibly with the cutting head. Through the double-power collaborative design of the centrifugal fan 9 and the extraction pump 5, the centrifugal fan 9 provides high air pressure adsorption force, and the extraction pump 5 enhances the negative pressure stability of the long pipe. Combined with the flexible stretching and contracting characteristics of the corrugated pipe 7, the smoke suction port is always close to the cutting point when the laser head is lifted, the smoke escape amount is significantly reduced, and the built-in filter core 13 of the detachable filter pipe 12 at both ends of the smoke storage tank 11 realizes the purification and filtration of the smoke gas.

[0039] It needs to be explained that the pressure of the pressure ring 404 is dynamically adjusted by the pneumatic push rod 401 of the pre-pressing assembly 4, and the pressure is monitored in real time by the symmetrical pressure sensor 403 to effectively suppress the warping deformation of the thin plate caused by thermal stress, while avoiding the collision of the high-temperature workpiece with the laser head. The circumferential ball 16 at the bottom of the pressure ring 404 is designed to convert sliding friction into rolling friction, which not only reduces the scratches on the surface of the plate, but also can move flexibly with the cutting head. Through the dual-power cooperative design of the centrifugal fan 9 and the suction pump 5, the centrifugal fan 9 provides high wind pressure adsorption force, and the suction pump 5 enhances the negative pressure stability of the long pipeline, and cooperates with the flexible expansion characteristics of the corrugated pipe 7 to ensure that the smoke suction port is always close to the cutting point when the laser head rises and falls, and the amount of smoke escaping is significantly reduced. The built-in filter element 13 in the detachable filter pipe 12 at both ends of the smoke storage tank 11 realizes the purification and filtration of smoke.

[0040] The working principle of the above embodiment is as follows: first, the laser cutting machine adjusts the up-down position of the laser cutting device 2 through the first electric push rod 17 on the driving frame 1, so that it is aligned with the plate to be cut. At the same time, the pre-pressing assembly 4 below the mounting frame 3 is started, and the two pneumatic push rods 401 push the fixed ring 402 and the pressure ring 404 to press down until the pressure ring 404 is in close contact with the plate. The pressure sensor 403 monitors the pressure of the pressure ring 404 on the plate in real time to ensure that the pressure is moderate and prevent the plate from rising due to high temperature generated by laser cutting. The laser cutting device 2 starts to work, and the laser beam irradiates the plate surface after focusing, making the plate quickly reach the melting point or boiling point and complete the cutting. In this process, the ball 16 design at the bottom of the pressure ring 404 ensures that the pressure ring 404 can move flexibly with the laser cutting device 2, while reducing scratches on the surface of the plate. As the laser cutting proceeds, the smoke is quickly adsorbed by the centrifugal fan 9 in the machine shell 8, and the centrifugal fan 9 provides high wind pressure adsorption force to ensure that the smoke is effectively extracted. The suction pump 5 enhances the negative pressure stability of the long pipeline, so that the smoke can smoothly pass through the smoke suction pipe 6, the corrugated pipe 7 and the machine shell 8, and finally enter the smoke storage tank 11. The flexible expansion characteristics of the corrugated pipe 7 ensure that the smoke suction port is always close to the cutting point when the laser cutting device 2 rises and falls, reducing smoke escape. The smoke entering the smoke storage tank 11 is purified through the filter pipe 12 at both ends. The filter element 13 inside the filter pipe 12 can effectively filter out harmful substances in the smoke, reducing pollution to the environment. The purified smoke can be safely discharged through the discharge pipe 10.

[0041] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0042] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A laser cutting machine with flue gas treatment, comprising a driving frame (1) and a laser cutting device (2) arranged below the driving frame (1), characterized in that: The outer surface of the laser cutter (2) is provided with a mounting frame (3), and the lower portion of the mounting frame (3) is provided with a pre-pressing assembly (4). The pre-pressing assembly (4) comprises two pneumatic push rods (401), both of which are fixedly connected with the mounting frame (3), and the output ends of the two pneumatic push rods (401) are fixedly connected with the same fixed ring (402), the bottom of the fixed ring (402) is provided with two symmetrically arranged pressure sensors (403), and the bottom monitoring end of the two pressure sensors (403) is fixedly provided with a pressure ring (404), and the pressure ring (404) is on the same axis with the laser cutter (2). The back of the driving frame (1) is provided with an extraction pump (5), the input end of the extraction pump (5) is fixedly communicated with a smoke suction pipe (6), the bottom end of the smoke suction pipe (6) is fixedly communicated with a corrugated pipe (7), the bottom end of the corrugated pipe (7) is fixedly communicated with a machine shell (8), the inside of the machine shell (8) is provided with a fan (9), the output end of the extraction pump (5) is fixedly communicated with a discharge pipe (10), the other end of the discharge pipe (10) is fixedly communicated with a smoke storage tank (11), and the top of the driving frame (1) is fixedly connected with the smoke storage tank (11).

2. A laser cutting machine with fume treatment as claimed in claim 1, characterized in that: The two ends of the smoke storage tank (11) are threadedly connected with filter pipes (12), and the inside of each filter pipe (12) is provided with a filter core (13).

3. The laser cutting machine with smoke treatment according to claim 1, characterized in that: The outer surface of the machine shell (8) is fixedly provided with a connecting plate (14), and the other end of the connecting plate (14) is fixedly connected with the mounting frame (3).

4. The laser cutting machine with smoke treatment according to claim 1, characterized in that: The bottom end of the machine shell (8) is fixedly provided with a grille (15).

5. The laser cutting machine with smoke treatment according to claim 1, characterized in that: The bottom of the pressure ring (404) is provided with a plurality of circumferentially arranged balls (16).

6. The laser cutting machine with smoke treatment according to claim 1, characterized in that: The inside of the driving frame (1) is provided with a first electric push rod (17), and the output end of the first electric push rod (17) is fixedly connected with the laser cutter (2).

7. The laser cutting machine with smoke treatment according to claim 1, characterized in that: The fan (9) is a centrifugal fan (9).

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