Laser cutting smoke exhaust device

Abstract

The utility model belongs to the field of laser cutting machines, and particularly relates to a laser cutting smoke exhaust device which comprises a cover body. The side face of the cover body is fixedly connected with a connecting pipe. The top end of the connecting pipe is fixedly connected with a flexible air pipe; the top end of the flexible air pipe is fixedly connected with a fan shell; a fan is fixedly connected in the fan shell; the end, away from the flexible air pipe, of the fan shell is fixedly connected with an exhaust pipe. By arranging the fan shell, the fan, the filter plate frame, the filter screen, the exhaust pipe, the flexible air pipe and the cover body, during use, the fan is started, the fan extracts air in the cover body through the flexible air pipe so as to extract smoke dust generated during cutting, then the filter screen can be used for filtering the smoke dust, and the smoke dust can be filtered through the exhaust pipe. And then the smoke is exhausted outdoors through the exhaust pipe, so that negative-pressure suction can be carried out on the smoke, the situation that a worker inhales the smoke during working can be reduced, and the body health of the worker is protected.

Description

Technical Field

[0001] The utility model relates to the field of laser cutting machines, in particular to a laser cutting smoke exhaust device. Background Art

[0002] Laser cutting machine is a workpiece processing and cutting equipment, which mainly uses a high-power density laser beam to irradiate the material to be cut, vaporizing the irradiated part to complete the cutting of the material.

[0003] In the current existing technology, laser cutting machines are often used for workpiece cutting processing. They have the characteristics of narrow cutting and high cutting accuracy. A three-axis linear module is installed on the laser cutting machine. A laser head is installed on the driving seat of the three-axis linear module. The laser head emits a laser beam to irradiate and cut the workpiece. The three-axis linear module is used to control the movement of the laser head to complete the cutting of workpieces of different shapes.

[0004] However, when a laser cutting machine is used to cut a workpiece, smoke will be generated when the laser beam cuts the workpiece. The smoke will float into the air and be inhaled by the workers, thereby affecting their health. Therefore, a laser cutting smoke exhaust device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a laser cutting smoke exhaust device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the laser cutting smoke exhaust device described in the utility model includes a cover body; a connecting pipe is fixedly connected to the side of the cover body; a flexible air duct is fixedly connected to the top of the connecting pipe; a fan housing is fixedly connected to the top of the flexible air duct; a fan is fixedly connected in the fan housing; an exhaust pipe is fixedly connected to one end of the fan housing away from the flexible air duct; a filter component is arranged in the fan housing.

[0007] Preferably, the filter assembly includes a filter plate frame; the top of the filter plate frame is bolted to the fan casing; a slot is provided inside the fan casing; the filter plate frame is inserted into the slot and slidably connected thereto; a rubber strip is fixedly connected to the top of the filter plate frame; and a filter net is fixedly connected to the bottom of the filter plate frame.

[0008] Preferably, one end of the exhaust pipe away from the fan housing is fixedly connected to a water filter box; one end of the exhaust pipe away from the fan housing is fixedly connected to an air injection pipe; a plurality of through holes are provided at the bottom end of the air injection pipe; and an air outlet pipe is fixedly connected to the top of the water filter box.

[0009] Preferably, a connecting seat is bolted to the bottom end of the air injection pipe; a mesh cylinder is fixedly connected to one end of the connecting seat away from the air injection pipe; the mesh cylinder and the through hole are interconnected; and the mesh cylinder is located at the bottom of the water filter box.

[0010] Preferably, a plurality of dehumidification plates are fixedly connected to both sides of the inner wall of the water filter box; the plurality of dehumidification plates are staggered; the dehumidification plates are inclined; the dehumidification plates are made of stainless steel; the air injection pipe passes through the dehumidification plates and is fixedly connected thereto.

[0011] Preferably, a metal plate is fixed to the bottom of the fan housing and the water filter box; a plurality of magnetic rings are provided at the bottom of the metal plate; a fixing seat is fixed to the middle of the magnetic ring; a fixing hoop is fixed to the bottom of the fixing seat; and the fixing hoop is fixed to the flexible air duct.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model is provided with a fan housing, a fan, a filter plate frame, a filter screen, an exhaust pipe, a flexible air duct and a cover body. When in use, the fan is started, and the fan draws air in the cover body through the flexible air duct, so as to draw out the smoke and dust generated during cutting, and then the smoke and dust can be filtered by the filter screen, and then discharged to the outside by the exhaust pipe, so that the smoke and dust can be sucked by negative pressure, thereby reducing the situation of workers inhaling smoke and dust during work, and protecting the health of the workers;

[0014] 2. The utility model is provided with an exhaust pipe, a water filter box, an air injection pipe and an air outlet pipe. When in use, the air flow will be injected into the bottom of the water filter box through the exhaust pipe and the air injection pipe. The inside of the water filter box is filled with water, and the air flow is injected into the water. The metal dust in the air flow is adsorbed to a certain extent by the water, thereby playing a further dust reduction role and improving the removal effect of the metal dust. After that, the air is connected to the outdoors or other exhaust gas treatment equipment through the air outlet pipe for discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0017] Figure 2 This is a schematic diagram of the fan casing structure of the utility model;

[0018] Figure 3This is a schematic diagram of the metal plate structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the fixing seat of the utility model.

[0020] In the figure: 11, cover body; 12, connecting pipe; 13, flexible air duct; 14, fan casing; 15, fan; 21, filter plate frame; 22, filter screen; 31, water filter box; 32, exhaust pipe; 33, air outlet pipe; 34, air injection pipe; 41, metal plate; 42, magnetic ring; 43, fixing seat; 44, fixing hoop; 51, connecting seat; 52, mesh tube; 6, dehumidification plate; 7, ball bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Specific examples are given below.

[0023] See also Figure 1-4 As shown, a laser cutting smoke exhaust device comprises a cover body 11; a connecting pipe 12 is fixedly connected to the side of the cover body 11; a flexible air duct 13 is fixedly connected to the top of the connecting pipe 12; a fan casing 14 is fixedly connected to the top of the flexible air duct 13; a fan 15 is fixedly connected in the fan casing 14; an exhaust pipe 32 is fixedly connected to the end of the fan casing 14 away from the flexible air duct 13; a filter assembly is arranged in the fan casing 14; the filter assembly comprises a filter plate frame 21; the top of the filter plate frame 21 is bolted to the fan casing 14; a slot is opened inside the fan casing 14; the filter plate frame 21 is inserted into the slot and slidably connected thereto; a rubber strip is fixedly connected to the top of the filter plate frame 21; a filter screen 22 is fixedly connected to the bottom of the filter plate frame 21;

[0024] During installation, the cover body 11 is installed on the cutting head of the laser cutting machine. The cover body 11 wraps the cutting head. The cover body 11 is made of glass. If there is a gap on the top of the cover body 11, it needs to be covered and sealed with a rubber film. Then the filter plate frame 21 is inserted into the slot, and then the filter plate frame 21 is fixed by bolts. When in use, the fan 15 is started. The fan 15 draws air in the cover body 11 through the flexible air duct 13 to extract the smoke generated during cutting. Then the smoke can be filtered by the filter net 22, and then discharged to the outside by the exhaust pipe 32. Therefore, the smoke can be sucked under negative pressure, thereby reducing the situation of smoke inhalation by the staff during work and protecting the health of the staff.

[0025] Further, such as Figure 1 and Figure 2 As shown, one end of the exhaust pipe 32 away from the fan housing 14 is fixedly connected to the water filter box 31; the one end of the exhaust pipe 32 away from the fan housing 14 is fixedly connected to the air injection pipe 34; the bottom end of the air injection pipe 34 is provided with a plurality of through holes; the top of the water filter box 31 is fixedly connected to an air outlet pipe 33; when in use, the airflow will be injected into the bottom of the water filter box 31 through the exhaust pipe 32 and the air injection pipe 34, the inside of the water filter box 31 is filled with water, the airflow is injected into the water, and the water is used to adsorb the metal dust in the airflow to a certain extent, thereby playing a further dust reduction role and improving the removal effect of the metal dust, and then it is connected to the outdoors or other exhaust gas treatment equipment through the air outlet pipe 33 for discharge.

[0026] Further, such as Figure 2 As shown, the bottom end of the gas injection pipe 34 is bolted with a connecting seat 51; the end of the connecting seat 51 away from the gas injection pipe 34 is fixedly connected with a mesh tube 52; the mesh tube 52 is interconnected with the through hole; the mesh tube 52 is located at the bottom of the water filter box 31; when in use, the air flow will be ejected through the holes on the mesh tube 52 to form tiny bubbles, thereby increasing the contact area with water, thereby facilitating the adsorption of dust in the air flow and improving the treatment effect of metal dust.

[0027] Further, such as Figure 2 As shown, a plurality of dehumidification plates 6 are fixedly connected to both sides of the inner wall of the water filter box 31; the plurality of dehumidification plates 6 are staggered; the dehumidification plates 6 are inclined; the dehumidification plates 6 are made of stainless steel; the air injection pipe 34 passes through the dehumidification plates 6 and is fixedly connected thereto; when in use, the upwardly flowing airflow will contact the staggered dehumidification plates 6, and the micro water droplets in the middle part of the airflow will contact and condense with the dehumidification plates 6, and the water vapor in contact with the metal dehumidification plates 6 will condense, thereby playing a role in dehumidifying the discharged air, and the dehumidified water is recovered along the inclined surface.

[0028] Further, such as Figure 3-4 As shown, a metal plate 41 is fixed to the bottom of the fan casing 14 and the water filter box 31; a plurality of magnetic rings 42 are provided at the bottom of the metal plate 41; a fixing seat 43 is fixed to the middle of the magnetic ring 42; a fixing hoop 44 is fixed to the bottom of the fixing seat 43; the fixing hoop 44 is fixed to the flexible air duct 13; during installation, the metal plate 41 is installed on the corresponding bracket, which is installed on the top of the laser cutting machine. When the cutting head of the laser cutting machine moves, the flexible air duct 13 will move accordingly, and the magnetic ring 42 will slide on the bottom side of the metal plate 41. The magnetic ring 42 is adsorbed on the bottom side of the metal plate 41 by magnetic force. The metal plate 41 is an iron plate. The fixing seat 43 is adsorbed on the metal plate 41 by the magnetic ring 42, so that the flexible air duct 13 can be fixed, and it can slide at the bottom of the metal plate 41, so as to reduce the interference of the flexible air duct 13 with the normal operation.

[0029] Further, such as Figure 4 As shown, the top of the fixing seat 43 is buckled and rollingly connected with a ball 7; when in use, the ball 7 is arranged to roll in contact with the metal plate 41 and to support the magnetic ring 42, so that a certain gap is left between the metal plate 41 and the magnetic ring 42, and the ball 7 rolls on the bottom side of the metal plate 41, thereby reducing the friction during the movement.

[0030] Working principle: during installation, the cover 11 is installed on the cutting head of the laser cutting machine. The cover 11 wraps the cutting head. The cover 11 is made of glass. If there is a gap on the top of the cover 11, it needs to be covered and sealed with a rubber film. Then the filter plate frame 21 is inserted into the slot, and then the filter plate frame 21 is fixed by bolts. When in use, the fan 15 is started. The fan 15 draws air in the cover 11 through the flexible air duct 13 to extract the smoke generated during cutting, and then the smoke can be filtered by the filter net 22. The smoke is then discharged to the outside through the exhaust pipe 32, so that the smoke can be sucked under negative pressure, thereby reducing the situation of workers inhaling smoke during work and protecting their health. When in use, the air flow is injected into the bottom of the water filter box 31 through the exhaust pipe 32 and the air injection pipe 34. The water filter box 31 is filled with water, and the air flow is injected into the water. The metal dust in the air flow is adsorbed by the water to further reduce the dust and improve the removal effect of the metal dust. Then, the air is connected to the outside or other exhaust gas treatment equipment through the outlet pipe 33. The airflow will be discharged directly, and the airflow will be ejected through the holes on the mesh tube 52 to form tiny bubbles, which can increase the contact area with water, so that the dust in the airflow can be easily adsorbed, and the treatment effect of metal dust can be improved. When in use, the upward airflow will contact the staggered dehumidification plates 6, and the micro water droplets in the middle of the airflow will contact and condense with the dehumidification plates 6, and the water vapor in contact with the metal dehumidification plates 6 will condense, so it can play a role in dehumidifying the discharged air, and the dehumidified water will be recovered along the inclined surface. When installing, the metal The metal plate 41 is installed on the corresponding bracket, which is installed on the top of the laser cutting machine. When the cutting head of the laser cutting machine moves, the flexible air duct 13 will move accordingly, and the magnetic ring 42 will slide on the bottom side of the metal plate 41. The magnetic ring 42 is adsorbed on the bottom side of the metal plate 41 by magnetic force. The metal plate 41 is an iron plate. The fixing seat 43 is adsorbed on the metal plate 41 by the magnetic ring 42, so that the flexible air duct 13 can be fixed, and it can slide at the bottom of the metal plate 41, so as to reduce the interference of the flexible air duct 13 hanging down and normal work.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A laser cutting fume exhaust device, characterized in that: The invention comprises a cover body (11); a connecting pipe (12) is fixedly connected to the side of the cover body (11); a flexible air duct (13) is fixedly connected to the top end of the connecting pipe (12); a fan housing (14) is fixedly connected to the top end of the flexible air duct (13); a fan (15) is fixedly connected inside the fan housing (14); an exhaust pipe (32) is fixedly connected to one end of the fan housing (14) away from the flexible air duct (13); and a filter assembly is arranged inside the fan housing (14).

2. A laser cutting fume exhaust device according to claim 1, characterized in that: The filter assembly comprises a filter plate frame (21); the top of the filter plate frame (21) is bolted to the fan housing (14); a slot is provided inside the fan housing (14); the filter plate frame (21) is inserted into the slot and slidably connected thereto; a rubber strip is fixedly connected to the top of the filter plate frame (21); and a filter screen (22) is fixedly connected to the bottom of the filter plate frame (21).

3. A laser cutting fume exhaust device according to claim 2, characterized in that: One end of the exhaust pipe (32) away from the fan housing (14) is fixedly connected to a water filter box (31); one end of the exhaust pipe (32) away from the fan housing (14) is fixedly connected to an air injection pipe (34); a plurality of through holes are formed at the bottom end of the air injection pipe (34); and an air outlet pipe (33) is fixedly connected to the top of the water filter box (31).

4. A laser cutting fume exhaust device according to claim 3, characterized in that: The bottom end of the air injection pipe (34) is bolted with a connecting seat (51); one end of the connecting seat (51) away from the air injection pipe (34) is fixedly connected with a net cylinder (52); the net cylinder (52) and the through hole are interconnected; the net cylinder (52) is located at the bottom of the water filter box (31).

5. The laser cutting fume exhaust device according to claim 4, characterized in that: A plurality of dehumidification plates (6) are fixedly connected to both sides of the inner wall of the water filter box (31); the plurality of dehumidification plates (6) are arranged in a staggered manner; the dehumidification plates (6) are arranged in an inclined manner; the dehumidification plates (6) are made of stainless steel; and the air injection pipe (34) passes through the dehumidification plates (6) and is fixedly connected thereto.

6. The laser cutting fume exhaust device according to claim 5, characterized in that: A metal plate (41) is fixedly connected to the bottom of the fan housing (14) and the water filter box (31); a plurality of magnetic rings (42) are provided at the bottom of the metal plate (41); a fixing seat (43) is fixedly connected to the middle of the magnetic ring (42); A fixing hoop (44) is fixedly connected to the bottom of the fixing seat (43); the fixing hoop (44) is fixedly connected to the flexible air duct (13).

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