Air blowing and dust collecting mechanism, laser cutting device and air blowing and dust collecting method

Abstract

The invention discloses an air blowing and dust collection mechanism, a laser cutting device and an air blowing and dust collection method.The air blowing and dust collection mechanism comprises a dust collector, a dust collection cover, a dust collection pipeline and an air outlet module, the dust collection cover forms a first dust collection cavity with an opening facing a cutting station, and the dust collection pipeline is provided with an injection air channel and a dust collection air channel; the air flow in the injection air channel is used for injecting the air flow in the dust collection air channel, the dust collection air channel communicates with the first dust collection cavity and a dust collection opening of the dust collector, the air inlet end of the dust collection air channel is arranged close to an opening of the first dust collection cavity, and the air outlet module is used for conveying the air flow to the injection air channel and the cutting station. According to the air blowing and dust collection mechanism, waste chippings can be prevented from splashing while generation of the waste chippings is reduced, the suction effect on dust, smoke, the waste chippings and the like is improved, then the dust can be prevented from polluting the working environment, and the body health of workers can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of processing equipment, and in particular to an air blowing and dust suction mechanism, a laser cutting device and an air blowing and dust suction method. Background Art

[0002] At present, with the continuous development of laser technology, laser cutting machines are increasingly being used in various industries. The laser is emitted to irradiate the workpiece to be cut. As heat is generated and accumulated, the material temperature continues to rise and eventually a cut is formed. When the laser pulse width required for the workpiece to be cut is large, the greater the diffusion distance of the heat energy generated by the laser on the workpiece to be cut, the greater the thermal damage to the workpiece to be cut, and ultimately leads to a burst in the form of a body explosion. In addition, smoke, dust, debris, etc. are easily generated during the cutting process, and the dust collection mechanism in the relevant technology has a poor dust collection effect, resulting in smoke, dust, debris, etc. polluting the working environment and affecting the health of the staff. Summary of the invention

[0003] The present invention proposes an air blowing and dust suction mechanism for laser cutting, which can reduce the generation of waste debris and prevent the waste debris from splashing to the outside of the cutting station, and can better improve the suction effect of the air blowing and dust suction mechanism on dust, smoke, waste debris, etc., so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the workers.

[0004] The present invention also proposes a laser cutting device having the air blowing and dust suction mechanism.

[0005] The invention also provides an air blowing and dust removal method for the laser cutting device.

[0006] According to the first aspect of the present invention, the air blowing and dust suction mechanism for laser cutting includes: a vacuum cleaner; a dust suction hood, suitable for forming a first dust suction chamber opening toward a cutting station; a dust suction duct, comprising an ejection air duct and a dust suction air duct, the air flow in the ejection air duct being used for ejecting the air flow in the dust suction air duct, the dust suction air duct connecting the first dust suction chamber and the dust suction port of the vacuum cleaner, the air inlet end of the dust suction air duct being arranged adjacent to the opening of the first dust suction chamber; an air outlet module, the air outlet module being used for conveying air flow to the ejection air duct and the cutting station.

[0007] According to the air blowing and dust suction mechanism for laser cutting of the first aspect of the embodiment of the present invention, by conveying air flow to the cutting station to lower the temperature of the laser cutting area, it is possible to avoid the laser cutting area from bursting in the form of a body explosion, thereby reducing the generation of waste debris and avoiding the waste debris from splashing to the outside of the cutting station. By conveying air flow into the induced air duct, the air flow in the dust suction air duct can be better induced, thereby better improving the suction force of the dust suction air duct through the first dust suction chamber on dust, smoke, waste debris, etc. on the cutting station, and further better improving the suction effect of the air blowing and dust suction mechanism on dust, smoke, waste debris, etc., so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0008] According to some embodiments of the present invention, the air outlet module includes a vortex tube, a hot air end of the vortex tube is used to convey airflow to the injection air duct, and a cold air end of the vortex tube is used to convey airflow to the cutting station.

[0009] According to some embodiments of the present invention, a plurality of vortex tubes are provided, and the plurality of vortex tubes are connected in series in sequence; and / or a boost air duct extending in an up-down direction is also formed in the dust suction duct, the air outlet ends of the ejection air duct and the dust suction air duct are both connected to the boost air duct and are adjacent to the lower end of the boost air duct, the upper end of the boost air duct is connected to the external space and the lower end is connected to the dust suction port of the vacuum cleaner.

[0010] According to some embodiments of the present invention, the dust hood is suitable for being arranged above the cutting station, and an upper surface of the dust hood forms a laser avoidance hole opposite to the opening of the first dust chamber in the up and down directions.

[0011] According to some embodiments of the present invention, the air outlet module has an induced air outlet and a cooling air outlet arranged in the first dust suction chamber, the induced air outlet is used to convey the induced air flow to the induced air duct, and the cooling air outlet is suitable for conveying the cooling air flow toward the cutting station, the induced air outlet is located above the cooling air outlet, and the air inlet end of the induced air duct is connected to the first dust suction chamber and is arranged opposite to the induced air outlet.

[0012] According to some embodiments of the present invention, the induced air outlet is in the shape of a long strip extending along a first direction, the laser avoidance hole is formed between the two ends of the induced air outlet in the first direction, and in the second direction, the induced air outlet and the air inlet end of the induced air duct are respectively located on opposite sides of the laser avoidance hole, and the second direction is perpendicular to the first direction; and / or, the induced air duct is located above the dust suction air duct, and in the air flow direction, the dust suction air duct extends upward at an angle.

[0013] According to some embodiments of the present invention, the air blowing dust suction mechanism also includes: a dust suppression part, which is arranged on the dust suction hood and is located on the downstream side of the airflow conveyed by the air outlet module toward the cutting station, and the dust suppression part is suitable for extending in a direction close to the cutting station; and / or, a mixing air duct is also formed in the dust suction duct, and the extension direction of the mixing air duct is consistent with that of the induced air duct, the outlet end of the induced air duct and the outlet end of the dust suction air duct are both connected to the air inlet end of the mixing air duct, and the outlet end of the mixing air duct is connected to the dust suction port of the vacuum cleaner.

[0014] According to some embodiments of the present invention, the cross-section of the ejection air duct decreases in the airflow direction; and / or the cross-section of the ejection air duct is smaller than the cross-section of the dust suction air duct.

[0015] According to some embodiments of the present invention, the air blowing dust suction mechanism also includes: a dust suction platform, the cutting station is formed on the dust suction platform, a second dust suction chamber is formed in the dust suction platform and is located below the cutting station, a dust suction hole connected to the second dust suction chamber is formed on the cutting station, and the dust suction port of the vacuum cleaner is connected to the second dust suction chamber.

[0016] According to some embodiments of the present invention, the dust suction platform includes a base and a hollow pad detachably connected to the base, the base and the hollow pad define the second dust suction chamber located below the hollow pad, the hollow pad constitutes the cutting station, and the dust suction hole is formed on the hollow pad.

[0017] According to some embodiments of the present invention, the air blowing and dust suction mechanism also includes a side suction module, which is arranged on the outer peripheral side of the cutting station, and a side inlet facing the cutting station is formed on the side suction module, and the side inlet is located on the downstream side of the airflow delivered by the air outlet module toward the cutting station.

[0018] The laser cutting device according to the second embodiment of the present invention comprises: a frame provided with a cutting station; the above-mentioned air blowing and dust suction mechanism provided on the frame; and a laser cutting mechanism provided on the frame and used for cutting a workpiece.

[0019] According to the laser cutting device of the second aspect of the embodiment of the present invention, by conveying airflow to the cutting station to lower the temperature of the laser cutting area, it is possible to avoid the laser cutting area from bursting in the form of a body explosion, thereby reducing the generation of waste debris and avoiding the waste debris from splashing to the outside of the cutting station. By conveying airflow into the induced air duct, the airflow in the dust suction air duct can be better induced, thereby better improving the suction force of the dust suction air duct through the first dust suction chamber on dust, smoke, waste debris, etc. on the cutting station, and further better improving the suction effect of the air blowing dust suction mechanism on dust, smoke, waste debris, etc., so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0020] According to some embodiments of the present invention, the laser cutting device further includes: a moving mechanism, the moving mechanism is movable relative to the frame, and the dust hood and the laser cutting mechanism are both arranged on the moving mechanism.

[0021] According to the air blowing and dust removal method of the laser cutting device of the third aspect of the embodiment of the present invention, the laser cutting device includes a laser cutting mechanism and the above-mentioned air blowing and dust removal mechanism, and the air blowing and dust removal method includes: placing the workpiece to be cut on the cutting station; turning on the vacuum cleaner; turning on the laser cutting mechanism, and at the same time, the cooling air outlet conveys a cooling airflow to the cut workpiece, and the induced air outlet conveys an induced airflow into the induced air duct.

[0022] According to the air blowing and dust suction method of the laser cutting device of the third aspect of the embodiment of the present invention, by conveying air flow to the cutting station to lower the temperature of the laser cutting area, the laser cutting area can be prevented from bursting in the form of a body explosion, thereby reducing the generation of waste debris and preventing the waste debris from splashing to the outside of the cutting station. By conveying air flow into the induced air duct, the air flow in the dust suction air duct can be better induced, so that the suction force of the dust suction air duct on the dust, smoke and waste debris on the cutting station through the first dust suction chamber can be better improved, and then the suction effect of the air blowing and dust suction mechanism on dust, smoke and waste debris can be better improved, so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0023] According to some embodiments of the present invention, the air blowing dust suction mechanism also includes: a dust suction platform, the dust suction platform includes a base and a hollow pad detachably connected to the base, the base and the hollow pad define a second dust suction chamber located below the hollow pad, the dust suction port of the vacuum cleaner is connected to the second dust suction chamber, and a dust suction hole connected to the second dust suction chamber is formed on the hollow pad; placing the workpiece to be cut on the cutting station includes: placing the workpiece to be cut on the hollow pad.

[0024] According to some embodiments of the present invention, the dust hood and the laser cutting mechanism are movably disposed above the cutting station, the workpiece to be cut includes multiple cutting areas, and the dust hood and the laser cutting mechanism have multiple cutting positions corresponding to the multiple cutting areas one by one; after the workpiece is placed on the cutting station and before the laser cutting mechanism is turned on, it includes: the dust hood and the laser cutting mechanism move to any cutting position; after the cutting of the current cutting area is completed, the dust hood and the laser cutting mechanism move to the remaining cutting positions in turn until the cutting of all cutting areas is completed, and the vacuum cleaner is turned off.

[0025] According to some embodiments of the present invention, the dust hood and the laser cutting mechanism move to the remaining cutting positions in sequence, including: when the dust hood and the laser cutting mechanism move between the multiple cutting positions, the laser cutting mechanism is turned off; after the dust hood and the laser cutting mechanism move into place, the laser cutting mechanism is turned on.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the internal structure of an air blowing and dust suction mechanism according to an embodiment of the present invention;

[0028] Figure 2 is a partial axonometric diagram of an air blowing and dust suction mechanism according to an embodiment of the present invention;

[0029] Figure 3 yes Figure 2 A top view of a portion of the central air blowing and dust collecting mechanism;

[0030] Figure 4 yes Figure 2 A partial side view of the air blowing and dust suction mechanism;

[0031] Figure 5 yes Figure 2 A partial front view of the air blowing and dust suction mechanism;

[0032] Figure 6 is a top view of a dust collection hood and a dust collection duct of an air blowing dust collection mechanism according to an embodiment of the present invention;

[0033] Figure 7 is a top view of a dust suction platform of an air blowing dust suction mechanism according to an embodiment of the present invention;

[0034] Figure 8 is a partial schematic diagram of a laser cutting device according to an embodiment of the present invention.

[0035] Reference numerals:

[0036] Laser cutting device 1000;

[0037] Air blowing and dust suction mechanism 100; cutting station 10;

[0038] Dust collection cover 1; first dust collection chamber 11; laser avoidance hole 12;

[0039] Dust suction duct 2; ejection air duct 21; dust suction air duct 22; booster air duct 23; mixing air duct 24;

[0040] Air outlet module 3; induced air outlet 31; cooling air outlet 32; induced air flow 33; cooling air flow 34;

[0041] Dust suppression parts 4;

[0042] Dust suction platform 5; second dust suction chamber 50; base 51; hollow pad 52; dust suction hole 521;

[0043] Side suction module 6; side inlet 61; dust removal module 7;

[0044] Frame 200; laser cutting mechanism 300; moving mechanism 400;

[0045] First direction e1; second direction e2. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0047] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0048] The following describes an air blowing and dust suction mechanism 100 for laser cutting according to an embodiment of the present invention with reference to the accompanying drawings.

[0049] like Figure 1-Figure 7As shown, the blowing and dust collection mechanism 100 for laser cutting according to an embodiment of the present invention comprises: a vacuum cleaner (not shown), a dust collection hood 1, a dust collection duct 2 and an air outlet module 3, wherein the dust collection hood 1 is suitable for forming a first dust collection chamber 11 with an opening facing the cutting station 10. Among them, the dust collection port of the vacuum cleaner is connected to the first dust collection chamber 11, and the cutting station 10 refers to the position where the workpiece, such as FPC or PI film, is placed when cutting. Therefore, a connected air flow channel is formed between the vacuum cleaner and the first dust collection chamber 11. Under the drive of the vacuum cleaner, a negative pressure can be formed in the first dust collection chamber 11. Under the negative pressure state, the air on the cutting station 10 flows toward the first dust collection chamber 11 through the opening of the first dust collection chamber 11, thereby driving the dust, smoke, waste debris, etc. generated during the cutting process on the cutting station 10 into the first dust collection chamber 11 and finally being collected by the vacuum cleaner. As a result, the dust, smoke, waste debris, etc. generated during the cutting process can be better avoided from polluting the working environment, which is beneficial to protecting the health of the staff.

[0050] Among them, the dust suction duct 2 has an ejection duct 21 and a dust suction duct 22. The airflow in the ejection duct 21 is used to eject the airflow in the dust suction duct 22. The dust suction duct 22 connects the first dust suction chamber 11 and the dust suction port of the vacuum cleaner. In other words, the first dust suction chamber 11 is connected to the suction port of the vacuum cleaner through the dust suction duct 22, that is, under the drive of the vacuum cleaner, dust, smoke, waste debris, etc. on the cutting station 10 can enter the vacuum cleaner through the first dust suction chamber 11, the dust suction duct 22 and the dust suction port. Further, the air inlet end of the dust suction duct 22 is arranged adjacent to the opening of the first dust suction chamber 11. That is, the position where the dust suction duct 22 is connected to the first dust suction chamber 11 is arranged adjacent to the opening of the first dust suction chamber 11. In this way, the distance between the air inlet end of the dust suction duct 22 and the cutting station 10 can be shortened, thereby enhancing the suction force of the vacuum cleaner on the dust, smoke and waste debris on the cutting station 10 through the dust suction duct 22, which is beneficial to avoid the dust, smoke and waste debris generated during the cutting process from polluting the working environment.

[0051] The air outlet module 3 is used to deliver airflow to the induced air duct 21 and the cutting station 10. It can be understood that the faster the gas flow rate, the smaller the pressure of the fluid. By delivering airflow to the induced air duct 21, the negative pressure value in the dust suction duct 22 can be improved. Therefore, when the airflow in the induced air duct 21 intersects with the airflow in the dust suction duct 22, a suction effect can be generated, so that the air around the opening of the first dust suction chamber 11 toward the cutting station 10 flows toward the dust suction duct 22 under the action of suction, so that the suction force of the dust suction duct 22 on the dust, smoke, waste debris, etc. on the cutting station 10 through the first dust suction chamber 11 can be improved, and then the suction effect of the air blowing dust suction mechanism 100 on dust, smoke, waste debris, etc. can be improved, so as to further avoid the dust, smoke, waste debris, etc. generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0052] In addition, during the cutting process of the workpiece, the temperature of the laser cutting area on the workpiece can be reduced by delivering airflow to the cutting station 10, so that the thermal carbonization and thermal expansion of the workpiece during the laser cutting process can be reduced, and the laser cutting area can be prevented from bursting in the form of a body explosion, that is, the generation of waste debris is reduced while the waste debris is prevented from splashing to the outside of the cutting station 10. Therefore, by cooling the laser cutting area with airflow, the amount of waste debris generated during the laser cutting process can be reduced, and the waste debris generated during the laser cutting process can be kept in the cutting station 10, so that the air blowing and dust collection mechanism 100 can recover the waste debris, which is beneficial to improving the cleanliness of the working environment. At the same time, it can prevent the waste debris from splashing to other processing areas to cause interference, so as to avoid interference with other processing equipment.

[0053] According to the embodiment of the present invention, the air blowing and dust suction mechanism 100 for laser cutting can reduce the temperature of the laser cutting area by conveying air flow to the cutting station 10, thereby preventing the laser cutting area from bursting in the form of a body explosion, thereby reducing the generation of waste debris and preventing the waste debris from splashing to the outside of the cutting station 10. By conveying air flow into the induced air duct 21, the air flow in the dust suction air duct 22 can be better induced, thereby better improving the suction force of the dust suction air duct 22 on the dust, smoke, waste debris, etc. on the cutting station 10 through the first dust suction chamber 11, and further better improving the suction effect of the air blowing and dust suction mechanism 100 on dust, smoke, waste debris, etc., so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0054] According to some embodiments of the present invention, the air outlet module 3 includes a vortex tube, the hot air end of the vortex tube is used to convey airflow to the injection air duct 31, and the cold air end of the vortex tube is used to convey airflow to the cutting station 10. Wherein, the vortex tube includes a vortex chamber, and after the compressed air is injected into the vortex chamber of the vortex tube, the high-energy gas molecules and the low-energy gas molecules in the airflow can be separated by centrifugal force, and the high-energy gas molecules rotate at a very high speed on the outside and flow to the hot air end outlet of the vortex tube, and the low-energy gas molecules rotate in the opposite direction at the same speed on the inside and flow to the cold air end of the vortex tube. In this process, the two airflows undergo heat exchange, the temperature of the low-energy gas molecule airflow decreases, and flows out from the cold air end of the vortex tube, and the temperature of the outer ring airflow increases, and flows out from the hot air end of the vortex tube. Thus, the vortex tube enables the air outlet module 3 to output high-speed hot air and high-speed cold air at the same time. The high-speed hot air is transported to the drainage air duct, which can further enhance the effect of the airflow in the dust suction air duct 22, so as to further enhance the suction effect of the air blowing and dust suction mechanism 100 on dust, smoke, waste debris, etc. The temperature of the high-speed cold air is low, such as the temperature at the cold air end can reach minus 40°C, which can better enhance the cooling effect of the airflow on the laser cutting area of ​​the workpiece, thereby further avoiding the laser cutting area from bursting in the form of a body explosion, which is conducive to further reducing the amount of waste debris generated. In addition, the vortex tube can output high-speed hot air and high-speed cold air at the same time, which can better simplify the structure of the air outlet module 3, so as to reduce the number of parts of the blowing and dust suction structure, and the vortex tube is small in size, so as to better save the installation space occupied by the air outlet module 3.

[0055] According to some optional embodiments of the present invention, a plurality of vortex tubes are provided, and the plurality of vortex tubes are connected in series in sequence. For example, the vortex tube may include two, three, four, etc., which are connected in series in sequence, and the number of vortex tubes connected in series is not specifically limited here. Thus, the separation distance of the gas in the plurality of vortex tubes can be well extended, so that the separation performance of the plurality of vortex tubes for hot air and cold air can be well improved, and then the temperature difference between the two ends of the plurality of vortex tubes connected in series, i.e., the hot air end and the cold air end, can be further increased. Therefore, a plurality of vortex tubes connected in series can output a lower temperature airflow through the cold air end to improve the cooling effect of the air outlet module 3 on the workpiece.

[0056] In a specific example, the number of vortex tubes ranges from 1 to 3. Thus, on the basis that the cold end of the vortex tubes satisfies the cooling of the workpiece by the airflow, it is possible to better avoid the impact of too many vortex tubes on the investment cost and the installation space occupied.

[0057] According to some optional embodiments of the present invention, a booster air duct 23 extending in the up-down direction is further formed in the dust collection duct 2, and the air outlet ends of the ejection air duct 21 and the dust collection air duct 22 are both connected to the booster air duct 23 and are arranged adjacent to the lower end of the booster air duct 23, and the upper end of the booster air duct 23 is connected to the external space and the lower end is connected to the dust collection port of the vacuum cleaner. In other words, the dust collection air duct 22 is connected to the dust collection port of the vacuum cleaner through the booster air duct 23, and the airflow discharged through the ejection air duct 21 and the dust collection air duct 22 flows into the booster air duct 23. Among them, the airflow discharged through the induced air duct 21 and flowing into the boost air duct 23 has a relatively high temperature, and the air in the external space has a certain temperature difference with the induced airflow 33, so that the high-temperature airflow in the boost air duct 23 flows toward the upper end of the boost air duct 23, and the external air enters the boost air duct 23 through the upper end of the boost air duct 23 and flows toward the lower end of the boost air duct 23, so that the airflow discharged from the dust collection air duct 22 into the boost air duct 23 can be better pushed downward by the downward-flowing airflow. Thus, a chimney effect can be formed through the boost air duct 23 to achieve a boost to the dust collection airflow, that is, to accelerate the speed of the dust collection airflow flowing into the boost air duct 23 through the dust collection air duct 22 and entering the vacuum cleaner. In addition, the induced airflow 33 in the induced air duct 21 and the descending airflow in the boost air duct 23 can twice enhance the suction force of the air blowing and dust collection mechanism 100 on dust, smoke, waste debris, etc., which is conducive to further enhancing the dust collection effect of the air blowing and dust collection mechanism 100.

[0058] According to some embodiments of the present invention, the dust hood 1 is suitable for being arranged above the cutting station 10. That is, the opening of the first dust suction chamber 11 is downward, and during the cutting process of the workpiece, the dust suction chamber 1 is located above the workpiece, and the opening of the first dust suction chamber 11 is located at the bottom of the dust suction chamber 1. As a result, the dust suction area of ​​the first dust suction chamber 11 in the horizontal direction can be better increased, so that the air-blowing dust suction mechanism 100 can more comprehensively suck the dust, smoke, waste debris, etc. generated during the laser cutting process of the workpiece through the dust suction chamber 1, which is conducive to improving the dust suction effect of the air-blowing dust suction mechanism 100. In a specific example, the dust suction chamber 1 is movably arranged above the cutting station 10, so that the dust suction chamber 1 can be better prevented from moving relative to the cutting station 10 and interfering with the workpiece.

[0059] According to some embodiments of the present invention, a laser avoidance hole 12 is formed on the upper surface of the dust hood 1, which is opposite to the opening of the first dust suction chamber 11 in the up-down direction. That is to say, the laser avoidance hole 12 is connected to the first dust suction chamber 11, and the laser can be irradiated downward onto the workpiece of the cutting station 10 through the laser avoidance hole 12 and the first dust suction chamber 11, that is, a laser channel that runs through the up-down direction is formed in the dust hood 1. As a result, the laser emitting head that emits the laser can be arranged above the dust hood 1, that is, during the process of laser cutting the workpiece, the dust hood 1 is located between the laser emitting head and the workpiece, and while ensuring that the laser passes through the flat dust hood 1 and irradiates the workpiece, the dust hood 1 can be close to the workpiece, and at the same time, the dust suction area of ​​the dust hood 1 can better cover the laser cutting area, so as to enhance the suction effect of the air blowing and dust suction mechanism 100 on the dust, smoke, waste debris, etc. generated on the workpiece.

[0060] According to some embodiments of the present invention, the air outlet module 3 has an induced air outlet 31 and a cooling air outlet 32 ​​arranged in the first dust suction chamber 11. The induced air outlet 31 is used to convey an induced airflow 33 to the induced air duct 21. The airflow in the dust suction air duct 22 can be better induced by the induced airflow 33. The cooling air outlet 32 ​​is suitable for conveying a cooling airflow 34 toward the cutting station 10, and the workpiece is cooled by the cooling airflow 34. The induced air outlet 31 is located above the cooling air outlet 32, and the air inlet end of the induced air duct 21 is connected to the first dust suction chamber 11 and is arranged opposite to the induced air outlet 31. It can be understood that during the laser cutting process of the workpiece, the workpiece is located under the dust hood 1, and the cooling air outlet 32 ​​is used to deliver the cooling air flow 34 to the laser cutting area of ​​the workpiece. By arranging the cooling air outlet 32 ​​at the lower side of the induced air outlet 31, the distance between the cooling air outlet 32 ​​and the workpiece can be shortened, thereby reducing the loss of the cooling air flow 34 from the cooling air outlet 32 ​​to the workpiece, thereby ensuring the cooling effect of the cooling air flow 34 on the laser cutting area on the workpiece, and at the same time, it can better avoid the induced air flow 33 interfering with the cooling air flow 34.

[0061] In a specific example, the induced air outlet 31 and the air inlet end of the induced air duct 21 are respectively located on opposite sides of the first dust suction chamber 11. Therefore, when the induced air flow 33 outputted from the induced air outlet 31 flows toward the air inlet end of the induced air duct 21, that is, when the induced air flow 33 flows in the first dust suction chamber 11, a suction effect can be formed in the first dust suction chamber 11, so that the air around the opening of the first dust suction chamber 11 can flow upward into the first dust suction chamber 11 under the suction effect, thereby helping to enhance the suction force of the first dust suction chamber 11 for dust, smoke, waste debris, etc.

[0062] In another specific example, the air inlet end of the induced air duct 21 is located outside the first dust suction chamber 11 and is directly connected to the air outlet module 3 , which helps to reduce the loss of airflow transported by the air outlet module 3 to the induced air duct 21 .

[0063] Furthermore, the induced air outlet 31 is in the shape of a long strip extending along the first direction e1, and the laser avoidance hole 12 is formed between the two ends of the induced air outlet 31 in the first direction e1. In the second direction e2, the induced air outlet 31 and the air inlet end of the induced air duct 21 are respectively located on the opposite sides of the laser avoidance hole 12, and the second direction e2 is perpendicular to the first direction e1. That is to say, the induced air outlet 31 is located on one side of the laser avoidance hole 12 in the second direction e2, and the air inlet end of the induced air duct 21 is located on the other side of the laser avoidance hole 12 in the second direction e2. The induced air outlet 31 and the air inlet end of the induced air duct 21 are arranged relatively to each other in the second direction e2. In the first direction e1, the induced air outlet 31 can completely cover the laser avoidance hole 12. Therefore, when the induced air outlet 31 emits an induced airflow 33 flowing toward the induced air duct 21, a wind curtain flowing toward the induced air duct 21 in the second direction e2 can be formed below the laser avoidance hole 12. The width of the wind curtain in the first direction e1 is greater than the width of the laser avoidance hole 12 in the first direction e1, so that the wind curtain can better cover the laser avoidance hole 12 below. Therefore, the wind curtain formed by the induced airflow 33 can better form a partition to prevent the dust, smoke, waste debris, etc. generated by the laser cutting of the workpiece from passing upward through the laser avoidance hole 12, thereby better preventing the dust, smoke, waste debris, etc. from escaping to the laser transmitter head and interfering with the laser transmitter head, which is beneficial to improving the stability of the laser transmitter head.

[0064] Furthermore, the induced air outlet 31 and the induced air duct 21 are both extended in the horizontal direction. Thus, the distance between the induced air outlet 31 and the induced air duct 21 in the horizontal direction can be shortened, and at the same time, the loss of the induced airflow 33 entering the induced air duct 21 can be reduced, so as to ensure that the induced airflow 33 can maintain a relatively high flow rate to induced airflow in the dust collection air duct 22.

[0065] According to some optional embodiments of the present invention, the induced air duct 21 is located above the dust suction air duct 22, and the dust suction air duct 22 extends upwardly in an inclined manner in the air flow direction. That is, the dust suction air duct 22 is located below the induced air duct 21, so that the distance between the air inlet end of the dust suction air duct 22 and the cutting station 10 can be reduced, that is, the air inlet end of the dust suction air duct 22 can be close to the cutting station 10, and the induced airflow 33 can be prevented from interfering with the airflow sucked in by the dust suction air duct 22. Therefore, when the workpiece is laser cut, the suction force of the vacuum cleaner on dust, smoke, waste debris, etc. through the dust suction air duct 22 can be improved.

[0066] According to some optional embodiments of the present invention, the air blowing and dust suction mechanism 100 further includes: a dust suppression member 4, which is disposed in the dust hood 1 and is located on the downstream side of the airflow delivered by the air outlet module 3 toward the cutting station 10, and the dust suppression member 4 is suitable for extending in the direction close to the cutting station 10. That is to say, at least a portion of the dust suppression member 4 is located between the cutting station 10 and the dust hood 1. Thus, the portion of the dust suppression member 4 located between the dust hood 1 and the cutting station 10 can better prevent the dust, smoke, and waste debris generated during the laser cutting of the workpiece from escaping to the outside of the cutting station 10, so that the waste debris generated during the laser cutting process can be kept in the cutting station 10, so that the air blowing and dust suction mechanism 100 can recover the waste debris, which is beneficial to improving the cleanliness of the working environment. At the same time, it can prevent the waste debris from splashing to other processing areas to cause interference, so as to avoid interference with other processing equipment.

[0067] In a specific example, a U-shaped bayonet is formed on the bottom end face of the dust hood 1, and the dust suppression component 4 is a brush strip, which is detachably arranged on the U-shaped bayonet, so that the dust suppression component 4 and the dust hood 1 are simply matched and the brush strip can be easily cleaned and replaced later.

[0068] Furthermore, the dust suppression member 4 is spaced apart from the cutting station 10. Thus, it is possible to better avoid the dust suppression member 4 from contacting with the workpiece and causing damage to the workpiece. Among them, the interval a between the dust suppression member 4 and the cutting station 10 in the up and down directions satisfies: 5≤a≤30mm. That is, the interval between the dust suppression member 4 and the cutting station 10 in the up and down directions is controlled within the range of 5mm to 30mm. For example, the interval between the dust suppression member 4 and the cutting station 10 in the up and down directions can be 5mm, or 10mm, or 15mm, or 20mm, or 30mm, etc., and no specific restrictions are made here. Thus, it is possible to better avoid the dust suppression member 4 and the cutting station 10 from contacting with the workpiece and causing friction damage due to the small spacing between the dust suppression member 4 and the cutting station 10, and at the same time, it is possible to better avoid the dust suppression member 4 and the cutting station 10 from contacting with the workpiece and causing dust, smoke and waste debris to escape in large quantities through the gap between the dust suppression member 4 and the cutting station 10, so that the dust suppression effect of the dust suppression member 4 can be ensured while ensuring that the dust suppression member 4 is at a safe distance from the workpiece.

[0069] According to some embodiments of the present invention, a mixing air duct 24 is further formed in the dust suction duct 2. The mixing air duct 24 is consistent with the extension direction of the induced air duct 21. The air outlet end of the induced air duct 21 and the air outlet end of the dust suction duct 22 are both connected to the air inlet end of the mixing air duct 24. The air outlet end of the mixing air duct 24 is connected to the dust suction port of the vacuum cleaner. That is to say, the induced airflow 33 outputted from the induced air duct 21 enters the mixing air duct 24. Under the drive of the vacuum cleaner, the airflow in the dust suction duct 22 enters the mixing chamber. After entering the mixing chamber, the induced airflow 33 mixes with the airflow entering the dust suction duct 22, thereby forming a suction effect in the mixing chamber, so that the air around the opening of the first dust suction chamber 11 is accelerated to flow through the dust suction duct 22 toward the mixing chamber under the suction effect, so as to enhance the suction force of the dust suction duct 22 on dust, smoke and waste debris.

[0070] According to some embodiments of the present invention, the cross-section of the induced air duct 21 is reduced in the direction of the airflow. The airflow direction here refers to the flow direction of the induced airflow 33 in the induced air duct 21. In other words, the cross-section of the air inlet end of the induced air duct 21 is larger than the cross-section of the air outlet end of the induced air duct 21. As a result, when the induced airflow 33 flows from the air inlet end of the induced air duct 21 toward the air outlet end, the flow velocity of the induced airflow 33 increases, that is, the flow velocity of the induced airflow 33 can be further increased by the induced air duct 21, thereby further improving the induced effect of the induced airflow 33 on the airflow in the dust collection air duct 22, and then further improving the suction force of the dust collection air duct 22 on dust, smoke, waste debris, etc.

[0071] According to some embodiments of the present invention, the cross section of the induced air duct 21 is smaller than the cross section of the dust suction air duct 22. Thus, while ensuring the dust suction air duct 22's adsorption efficiency for dust, smoke, waste debris, etc., it is possible to prevent the cross section of the induced air duct 21 from being too large to slow down the flow rate of the induced airflow 33.

[0072] In some examples, the cross section of the induced air duct 21 decreases in the airflow direction, and the cross section of the induced air duct 21 is smaller than the cross section of the dust suction duct 22. Thus, while improving the dust suction duct 22's adsorption efficiency for dust, smoke, and waste debris, the cross section of the induced air duct 21 is prevented from being too large to slow down the flow rate of the induced airflow 33.

[0073] According to some embodiments of the present invention, the air blowing dust suction mechanism 100 further includes: a dust suction platform 5, a cutting station 10 is formed on the dust suction platform 5, a second dust suction chamber 50 is formed in the dust suction platform 5 and is located below the cutting station 10, a dust suction hole 521 connected to the second dust suction chamber 50 is formed on the cutting station 10, and the dust suction port of the vacuum cleaner is connected to the second dust suction chamber 50. That is to say, a connected air flow channel is formed between the vacuum cleaner and the second dust suction chamber 50, and under the drive of the vacuum cleaner, a negative pressure is formed in the second dust suction chamber 50. Under the negative pressure state, the air on the cutting station 10 flows toward the second dust suction chamber 50 through the dust suction hole 521, so that the dust, smoke and waste debris generated in the cutting process on the cutting station 10 can be better driven into the second dust suction chamber 50 and finally collected by the vacuum cleaner. At the same time, the waste debris generated during the laser cutting process can directly fall into the second dust suction chamber 50 through the dust suction port, which can better avoid the accumulation of waste debris on the cutting station 10. As a result, the vacuum cleaner can collect dust, smoke, waste debris, etc. generated during the cutting process of the workpiece from the upper and lower sides of the workpiece through the dust hood 1 and the dust collection platform 5, respectively, thereby better improving the suction effect of the air blowing and dust collection mechanism 100 on dust, smoke and waste debris to further ensure the cleanliness of the working environment.

[0074] The dust suction platform 5 includes a base 51 and a hollow pad 52 detachably connected to the base 51. The base 51 and the hollow pad 52 define a second dust suction chamber 50 located below the hollow pad 52. The hollow pad 52 constitutes a cutting station 10, and a dust suction hole 521 is formed on the hollow pad 52. That is, the workpiece is placed on the hollow pad 52 for laser cutting, and the waste debris generated during the laser cutting of the workpiece can fall down into the second dust suction chamber 50 through the dust suction hole 521. The detachable hollow pad 52 can better reduce the difficulty of replacing the hollow pad 52, and at the same time, it is convenient to remove the hollow pad 52 from the base 51 to clean the second dust suction chamber 50.

[0075] Secondly, the specific size of the hollow pad 52 can be set according to the cutting area of ​​the workpiece, that is, the workpiece with the same cutting requirement corresponds to the hollow pad 52 of the same specification, so the hollow pad 52 of different specifications can be disassembled and replaced to adapt to the workpieces with different cutting requirements. Specifically, the shape, number and distribution of the dust suction holes 521 on the hollow pad 52 are the same as the shape, number and distribution of the area to be cut on the workpiece, that is, the dust suction holes 521 on the hollow pad 52 correspond to the area to be cut on the workpiece one by one, wherein the projection of the area to be cut on the workpiece on the horizontal plane is the first projection, and the projection of the dust suction holes 521 on the hollow pad 52 corresponding to the cutting area on the horizontal plane is the second projection, and the first projection is located in the second projection, therefore, when the workpiece is laser cut, the cutting area can be directly separated from the workpiece and fall into the second dust suction chamber 50 through the dust suction holes 521, and at the same time, when the laser moves along the edge of the cutting area, it can better avoid the contact between the laser and the hollow pad 52, which is conducive to improving the safety of the laser cutting process. Among them, the interval range between the outer edge of the first projection and the outer edge of the second projection is 10 to 100 microns, so as to ensure that the cut part can fall into the second dust suction chamber 50 through the dust suction hole 521 while preventing the dust suction hole 521 from being too large to interfere with other cutting areas.

[0076] According to some embodiments of the present invention, the air blowing and dust collecting mechanism 100 further includes a side suction module 6, which is disposed on the outer peripheral side of the cutting station 10, and a side inlet 61 is formed on the side suction module 6 toward the cutting station 10, and the side inlet 61 is located on the downstream side of the airflow delivered by the air outlet module 3 toward the cutting station 10. Here, the downstream side of the airflow (i.e., the cooling airflow 34) delivered by the air outlet module 3 toward the cutting station 10 is relative to the flow direction of the airflow delivered by the air outlet module 3 toward the cutting station 10, and the airflow delivered by the air outlet module 3 toward the cutting station 10 at least partially flows into the side inlet 61 after flowing through the workpiece, that is, the side inlet 61 faces the flow direction of the airflow delivered by the air outlet module 3 toward the cutting station 10. As a result, the dust, smoke, and waste debris driven by the airflow delivered by the air outlet module 3 toward the cutting station 10 when passing through the workpiece can enter the side suction module 6 through the side inlet 61, thereby better preventing the dust, smoke, and waste debris driven by the airflow delivered by the air outlet module 3 toward the cutting station 10 from escaping, which is beneficial to ensuring the cleanliness of the working environment to ensure the health of the staff. Among them, the side suction module 6 can be formed as a closed enclosure surrounding the cutting station 10, and the side suction module 6 can also be set to a single strip, a right angle or a U shape, etc., and the shape and setting position of the side suction module 6 are not specifically limited here.

[0077] According to some optional embodiments of the present invention, the height h of the side suction module 6 satisfies: 10≤h≤25mm. That is, the height of the side suction module 6 protruding from the cutting station 10 is controlled within the range of 10mm to 25mm. For example, the height of the side suction module 6 protruding from the cutting station 10 can be 10mm, or 12mm, or 15mm, or 19mm, or 25mm, etc., and no specific restrictions are made here. In this way, the risk of interference caused by the height of the side suction module 6 being too high can be avoided, and at the same time, the side suction module 6 can be avoided from being too low and the height of the side inlet 61 being too small, which affects the recovery effect of the side suction module 6 on the dust, smoke, and waste debris driven by the cooling airflow 34.

[0078] According to some optional embodiments of the present invention, a dust removal module 7 is provided in the side inlet 61, and the dust removal module 7 includes a brush and a filter element stacked along the direction of the cooling airflow 34. That is, after the cooling airflow 34 enters the side suction module 6 through the side inlet 61, it first flows through the brush, and the flow rate of the cooling airflow 34 can be reduced by the brush, and the waste debris in the cooling airflow 34 can be filtered out. After the cooling airflow 34 passes through the brush, it flows toward the filter element, and the flow of the cooling airflow 34 can be further reduced by the filter element, and the waste debris in the cooling airflow 34 can be filtered out. Therefore, the flow rate of the cooling airflow 34 after entering the side inlet 61 can be reduced in turn by the brush and the filter element, and the waste debris in the cooling airflow 34 can be filtered out, so that the noise of the cooling airflow 34 entering the side suction module 6 can be reduced, and the waste debris can be collected. In a specific example, the dust removal module 7 is detachably arranged in the side suction module 6, such as the dust removal module 7 can be a plug-in structure or a snap-on structure, etc., which is not specifically limited here. The exhaust brush can be made of aluminum profile to improve the wear resistance of the exhaust brush, and the filter element can be a polyurethane filter sponge. The control density of the filter element is 10 to 60 PPI, which can better improve the filtering effect of the filter element on waste debris and the like.

[0079] In some examples, the height h of the side suction module 6 satisfies: 10≤h≤25 mm, and a dust removal module 7 is provided in the side inlet 61 . The dust removal module 7 includes brushes and filters stacked along the direction of the cooling airflow 34 .

[0080] The laser cutting device 1000 according to an embodiment of the second aspect of the present invention will be described below with reference to the accompanying drawings.

[0081] like Figure 8As shown, the laser cutting device 1000 according to the second embodiment of the present invention comprises: a frame 200, an air blowing and dust suction mechanism 100 and a laser cutting structure, the frame 200 is provided with a cutting station 10, the air blowing and dust suction mechanism 100 is arranged on the frame 200, and the laser cutting mechanism 300 is arranged on the frame 200 and is used to cut the workpiece. Therefore, when the workpiece is laser cut, the workpiece can be placed on the cutting station 10, the workpiece is cut by the laser cutting structure, and the cooling airflow 34 is delivered to the cutting area on the workpiece by the air blowing and dust suction mechanism 100, so that the generation of waste debris can be reduced and the waste debris can be prevented from splashing to the outside of the cutting station 10, and the dust, smoke and waste debris generated during the laser cutting of the workpiece can be sucked at the same time, so as to avoid the dust, smoke and waste debris generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff. In a specific example, the laser cutting mechanism 300 is a galvanometer laser cutting mechanism 300, which can well improve the accuracy and efficiency of workpiece cutting.

[0082] According to the laser cutting device 1000 of the second invention embodiment of the present invention, by conveying airflow to the cutting station 10 to lower the temperature of the laser cutting area, the laser cutting area can be prevented from bursting in the form of a body explosion, thereby reducing the generation of waste debris and preventing the waste debris from splashing to the outside of the cutting station 10. By conveying airflow into the induced air duct 21, the airflow in the dust suction air duct 22 can be better induced, so that the suction force of the dust suction air duct 22 on the dust, smoke and waste debris on the cutting station 10 through the first dust suction chamber 11 can be better improved, and then the suction effect of the air blowing and dust suction mechanism 100 on dust, smoke and waste debris can be better improved, so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0083] According to some embodiments of the present invention, the laser cutting device 1000 further includes a moving mechanism 400, which is movable relative to the frame 200, and the dust hood 1 and the laser cutting mechanism 300 are both arranged on the moving mechanism 400. That is, the dust hood 1 and the laser cutting mechanism 300 can be driven to move relative to the frame 200 by the moving mechanism 400, so as to adjust the positions of the dust hood 1 and the laser cutting mechanism 300 relative to the cutting station 10. Thus, the mobility of the dust hood 1 and the laser cutting mechanism 300 can be improved, so that the laser cutting mechanism 300 can perform cutting operations in different areas of the workpiece while ensuring that the dust hood 1 can suck the dust, smoke, waste debris, etc. generated in the cutting area.

[0084] Reference below Figure 1-Figure 8 The laser cutting device 1000 according to a specific embodiment of the present invention is described. It is worth noting that the following description is only exemplary and intended to be used to explain the present invention, and cannot be understood as limiting the present invention.

[0085] The laser cutting device 1000 includes: a frame 200, an air blowing and dust collecting mechanism 100, a laser cutting mechanism 300 and a moving mechanism 400. The moving mechanism 400 is arranged on the frame 200, the laser cutting mechanism 300 is arranged on the moving mechanism 400, the air blowing and dust collecting mechanism 100 includes: a dust collecting hood 1, a dust collecting device, a dust collecting pipe 2, an air blowing module, a dust suppressing member 4, a dust collecting platform 5 and a side suction module 6, the dust collecting platform 5 is arranged on the frame 200, the dust collecting hood 1 is arranged on the moving mechanism 400 and is located above the dust collecting platform 5, the dust collecting hood 1 forms a first dust collecting chamber 11 opening downward, and the upper surface of the dust collecting hood 1 forms a first dust collecting chamber 11 opening downwardly and the upper surface of the dust collecting hood 1 forms a first dust collecting chamber 11 opening downwardly and the upper surface of the dust collecting hood 1 forms a first dust collecting chamber 11 opening downwardly and the upper surface of the dust collecting chamber 11 opens upwardly and ... The opening of the dust suction chamber 11 is opposite to the laser avoidance hole 12, the dust suction cover 1, the laser avoidance hole 12 and the first dust suction chamber 11 are all square, the dust suction duct 2 is arranged on the outer wall of the dust suction cover 1 on one side in the second direction e2, and the dust suction duct 2 is formed with an ejection air duct 21, a dust suction air duct 22, a mixing air duct 24 and a boost air duct 23, the ejection air duct 21 and the dust suction air duct 22 are arranged in the up-down direction and extend in the second direction e2 in the direction away from the dust suction cover 1, and the air inlet end of the ejection air duct 21 and the dust suction air duct 23 are arranged in the up-down direction and extend in the second direction e2 in the direction away from the dust suction cover 1. The air inlet ends of the ducts 22 are connected to the first dust suction chamber 11, the cross-section of the ejection duct 21 gradually decreases in the extension direction, the ejection duct 21 is located above the dust suction duct 22 and is parallel to the horizontal direction, the dust suction duct 22 extends upward in the extension direction, the mixing duct 24 is located at one end of the ejection duct 21 away from the dust suction hood 1 in the second direction e2 and extends in the horizontal direction, the air outlet end of the ejection duct 21 is connected to the upper area of ​​the mixing duct 24, the dust suction duct 22 is connected to the lower area of ​​the mixing duct 24. The cross-section of the mixing air duct 24 is larger than the cross-section of the air outlet end of the induced air duct 21 and is also larger than the cross-section of the air outlet end of the dust suction air duct 22. The boost air duct 23 is arranged at one end of the mixing air duct 24 away from the induced air duct 21 in the second direction e2. The boost air duct 23 extends in the up and down directions. The air outlet end of the mixing air duct 24 is connected to the boost air duct 23 and is arranged adjacent to the lower end of the boost air duct 23. The upper end of the boost air duct 23 is connected to the external space, and the lower end of the boost air duct 23 is connected to the dust suction port of the vacuum cleaner.

[0086] Furthermore, the air outlet module 3 is a cyclone axial flow vortex refrigerator and is arranged in the dust hood 1. The air outlet module 3 includes an axial flow supersonic turbine nozzle and a vortex tube. The axial flow supersonic turbine nozzle is used to inject high-speed airflow into the vortex tube. The vortex tube is arranged in the first dust suction chamber 11. The hot air end of the vortex tube forms an induced air outlet 31, and the cold air end of the vortex tube forms a cooling air outlet 32. The induced air outlet 31 and the cooling air outlet 32 ​​are arranged in the up and down direction. The induced air outlet 31 The air inlet end of the induced air duct 21 is respectively arranged on the opposite sides of the laser avoidance hole 12 in the second direction e2, the induced air outlet 31 and the air inlet end of the induced air duct 21 are both arranged adjacent to the top wall of the first dust suction chamber 11, and the induced air outlet 31 is in the shape of a strip extending along the first direction e1. In the first direction e1, the laser avoidance hole 12 is located between the two ends of the induced air outlet 31, and the air inlet end of the induced air duct 21 is opposite to the induced air outlet 31 in the second direction e2 and has the same shape.

[0087] Among them, the adsorption platform includes a base 51 and a hollow pad 52, the hollow pad 52 is detachably arranged on the base 51, and a second dust suction chamber 50 located below the hollow pad 52 is defined between the hollow pad 52 and the base 51, and the second dust suction chamber 50 is connected to the dust suction port of the vacuum cleaner, the upper surface of the hollow pad 52 is formed as a cutting station 10, and dust suction holes 521 penetrating along the up and down directions are formed on the hollow pad 52, and the workpiece is suitable for preventing cutting operations on the hollow pad 52, wherein the cooling air outlet 32 ​​is arranged below the induced air outlet 31 and adjacent to the lower end of the dust hood 1, and the cooling air flow 34 output by the cooling air outlet 32 ​​is transported to the workpiece in a downwardly inclined manner, and the side suction module 6 is arranged on the outer peripheral side of the dust suction platform 5 and forms a side inlet 61 that opens to affect the cooling air flow 34, and a dust removal module 7 is provided in the side suction module 6, and the dust removal module 7 includes a brush and a filter arranged along the flow direction of the cooling air flow 34. In addition, the dust hood 1 is provided with a dust suppression member 4 extending downwards. The dust suppression member 4 is located at the downstream side of the cooling airflow 34 and is spaced apart from the dust collection platform 5 .

[0088] The following describes an air blowing and dust removal method for a laser cutting device 1000 according to an embodiment of the third aspect of the present invention with reference to the accompanying drawings.

[0089] According to the air blowing and dust removal method of the laser cutting device 1000 of the third aspect of the embodiment of the present invention, the laser cutting device 1000 includes a laser cutting mechanism 300 and an air blowing and dust removal mechanism 100, and the air blowing and dust removal method includes: placing the workpiece to be cut on the cutting station 10. Among them, the workpiece can be better placed by the cutting station 10 to ensure the stability of the workpiece during the cutting process. Further, after the workpiece to be cut is placed on the cutting station 10, the vacuum cleaner is turned on, and the laser cutting mechanism 300 is turned on, and at the same time, the cooling air outlet 32 ​​conveys the cooling airflow 34 to the cut workpiece, and the induced air outlet 31 conveys the induced airflow 33 into the induced air duct 21. That is, the laser cutting mechanism 300 emits a laser to cut the workpiece, and the cooling airflow 34 is delivered to the cutting area on the workpiece, so that the generation of waste debris can be reduced and the waste debris can be prevented from splashing to the outside of the cutting station 10. At the same time, the air blowing and dust suction mechanism 100 sucks the dust, smoke and waste debris generated during the laser cutting of the workpiece. The negative pressure value in the dust suction duct 22 can be better improved through the induced airflow 33, so that the suction force of the dust suction duct 22 on the dust, smoke and waste debris on the cutting station 10 through the first dust suction chamber 11 can be better improved, and then the suction effect of the air blowing and dust suction mechanism 100 on dust, smoke and waste debris can be better improved, so as to avoid the dust, smoke and waste debris generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0090] According to the air blowing and dust suction method of the laser cutting device 1000 of the third aspect of the embodiment of the present invention, by conveying airflow to the cutting station 10 to lower the temperature of the laser cutting area, the laser cutting area can be prevented from bursting in the form of a body explosion, thereby reducing the generation of waste debris and preventing the waste debris from splashing to the outside of the cutting station 10. By conveying airflow into the induced air duct 21, the airflow in the dust suction duct 22 can be better induced, so that the suction force of the dust suction duct 22 on the dust, smoke and waste debris on the cutting station 10 through the first dust suction chamber 11 can be better improved, and then the suction effect of the air blowing and dust suction mechanism 100 on dust, smoke and waste debris can be better improved, so as to avoid the dust generated during the cutting process from polluting the working environment, which is beneficial to protecting the health of the staff.

[0091] According to some embodiments of the present invention, the air blowing dust suction mechanism 100 further includes: a dust suction platform 5, the dust suction platform 5 includes a base 51 and a hollow pad 52 detachably connected to the base 51, the base 51 and the hollow pad 52 define a second dust suction chamber 50 located below the hollow pad 52, the dust suction port of the vacuum cleaner is connected to the second dust suction chamber 50, and a dust suction hole 521 connected to the second dust suction chamber 50 is formed on the hollow pad 52. Among them, placing the workpiece to be cut on the cutting station 10 includes: placing the workpiece to be cut on the hollow pad 52. That is to say, a connected air flow channel is formed between the vacuum cleaner and the second dust suction chamber 50. Under the drive of the vacuum cleaner, a negative pressure is formed in the second dust suction chamber 50. Under the negative pressure state, the air on the cutting station 10 flows toward the second dust suction chamber 50 through the dust suction hole 521, so that the dust, smoke, and waste debris generated during the cutting process on the cutting station 10 can be driven into the second dust suction chamber 50 and finally collected by the vacuum cleaner. At the same time, the waste debris generated during the laser cutting process can directly fall into the second dust suction chamber 50 through the dust suction port, which can better avoid the accumulation of waste debris on the cutting station 10. As a result, the vacuum cleaner can collect the dust, smoke, and waste debris generated during the cutting process on the cutting station 10 through the dust hood 1 and the dust suction platform 5 at the same time, so that the suction effect of the air blowing and dust suction mechanism 100 on dust, smoke, and waste debris can be better improved to further ensure the cleanliness of the working environment.

[0092] According to some embodiments of the present invention, the dust hood 1 and the laser cutting mechanism 300 are movably arranged above the cutting station 10, the workpiece to be cut includes multiple cutting areas, and the dust hood 1 and the laser cutting mechanism 300 have multiple cutting positions corresponding to the multiple cutting areas. Wherein, after the workpiece is placed on the cutting station 10 and before the laser cutting mechanism 300 is turned on, it includes: the dust hood 1 and the laser cutting mechanism 300 move to any cutting position; after the current cutting area is cut, the dust hood 1 and the laser cutting mechanism 300 move to the remaining cutting positions in turn until all cutting areas are cut, and the vacuum cleaner is turned off. That is to say, when the workpiece is large, the cutting area on the workpiece can be planned, and the laser cutting mechanism 300 can cut multiple cutting areas in turn by moving between multiple cutting positions. At the same time, the dust, smoke, waste debris, etc. generated during the laser cutting of the workpiece can be sucked in time by moving the dust hood 1 between multiple cutting positions until all cutting areas on all workpieces are cut.

[0093] Furthermore, the dust hood 1 and the laser cutting mechanism 300 move to the remaining cutting positions in sequence, including: when the dust hood 1 and the laser cutting mechanism 300 move between multiple cutting positions, the laser cutting mechanism 300 is turned off; after the dust hood 1 and the laser cutting mechanism 300 move into place, the laser cutting mechanism 300 is turned on. In this way, it is possible to better avoid laser damage to the non-cutting area on the workpiece during the movement of the laser cutting mechanism 300. In addition, during the movement of the dust hood 1, the vacuum cleaner remains on, so that the air-blowing dust suction mechanism 100 can clean up the waste debris and the like splashed from the target cutting area during the movement, that is, to ensure the cleanliness of the workpiece surface, so as to ensure the cutting accuracy of the target cutting area by the laser cutting mechanism 300.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0096] Although the 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 claims and their equivalents.

Claims

1. An air blowing and dust suction mechanism for laser cutting, characterized in that: include: Vacuum cleaner; A dust suction hood, adapted to form a first dust suction chamber opening toward the cutting station; A dust suction duct, comprising an ejection duct and a dust suction duct, wherein the airflow in the ejection duct is used to eject the airflow in the dust suction duct, the dust suction duct is connected to the first dust suction cavity and the dust suction port of the vacuum cleaner, and the air inlet end of the dust suction duct is arranged adjacent to the opening of the first dust suction cavity; An air outlet module is used to deliver airflow to the injection air duct and the cutting station.

2. The air blowing and dust suction mechanism for laser cutting according to claim 1, characterized in that: The air outlet module comprises a vortex tube, a hot air end of the vortex tube is used to convey airflow to the ejection air duct, and a cold air end of the vortex tube is used to convey airflow to the cutting station.

3. The air blowing and dust suction mechanism for laser cutting according to claim 2, characterized in that: There are multiple vortex tubes, which are connected in series in sequence; and / or, a boost air duct extending in the up and down directions is also formed in the dust suction duct, the air outlet ends of the ejection air duct and the dust suction air duct are connected to the boost air duct and are adjacent to the lower end of the boost air duct, the upper end of the boost air duct is connected to the external space and the lower end is connected to the dust suction port of the vacuum cleaner.

4. The air blowing and dust suction mechanism for laser cutting according to claim 1, characterized in that: The dust hood is suitable for being arranged above the cutting station, and the upper surface of the dust hood forms a laser avoidance hole which is opposite to the opening of the first dust chamber in the up and down direction.

5. The air blowing and dust suction mechanism for laser cutting according to claim 4, characterized in that: The air outlet module has an induced air outlet and a cooling air outlet arranged in the first dust suction chamber, the induced air outlet is used to convey the induced air flow to the induced air duct, and the cooling air outlet is suitable for conveying the cooling air flow toward the cutting station, the induced air outlet is located above the cooling air outlet, and the air inlet end of the induced air duct is connected to the first dust suction chamber and is arranged opposite to the induced air outlet.

6. The air blowing and dust suction mechanism for laser cutting according to claim 5, characterized in that: The induced air outlet is in the shape of a long strip extending along a first direction, and the laser avoidance hole is formed between the two ends of the induced air outlet in the first direction. In the second direction, the induced air outlet and the air inlet end of the induced air duct are respectively located on the opposite sides of the laser avoidance hole, and the second direction is perpendicular to the first direction; and / or, the induced air duct is located above the dust suction air duct, and in the air flow direction, the dust suction air duct extends upward at an angle.

7. The air blowing and dust suction mechanism for laser cutting according to claim 1, characterized in that: Also includes: A dust suppression piece is arranged on the dust hood and is located on the downstream side of the airflow delivered by the air outlet module toward the cutting station, and the dust suppression piece is suitable for extending in the direction close to the cutting station; and / or a mixing air duct is also formed in the dust suction duct, and the extension direction of the mixing air duct is consistent with that of the induced air duct, the air outlet end of the induced air duct and the air outlet end of the dust suction air duct are both connected with the air inlet end of the mixing air duct, and the air outlet end of the mixing air duct is connected with the dust suction port of the vacuum cleaner.

8. The air blowing and dust suction mechanism for laser cutting according to claim 1, characterized in that: The cross section of the ejection air duct decreases in the airflow direction; and / or the cross section of the ejection air duct is smaller than the cross section of the dust collection air duct.

9. The air blowing and dust suction mechanism for laser cutting according to claim 1, characterized in that: Also includes: A dust suction platform, wherein the cutting station is formed on the dust suction platform, a second dust suction chamber located below the cutting station is formed in the dust suction platform, a dust suction hole connected to the second dust suction chamber is formed on the cutting station, and the dust suction port of the vacuum cleaner is connected to the second dust suction chamber.

10. The air blowing and dust suction mechanism for laser cutting according to claim 9, characterized in that: The dust suction platform includes a base and a hollow pad detachably connected to the base, the base and the hollow pad define the second dust suction cavity below the hollow pad, the hollow pad constitutes the cutting station, and the dust suction hole is formed on the hollow pad.

11. The air blowing and dust suction mechanism for laser cutting according to claim 9, characterized in that: It also includes a side suction module, which is arranged on the outer peripheral side of the cutting station. A side inlet facing the cutting station is formed on the side suction module, and the side inlet is located on the downstream side of the airflow delivered by the air outlet module toward the cutting station.

12. A laser cutting device, characterized in that: include: The frame is provided with a cutting station; An air blowing and dust suction mechanism, arranged on the frame, wherein the air blowing and dust suction mechanism is the air blowing and dust suction mechanism according to any one of claims 1 to 11; The laser cutting mechanism is arranged on the frame and is used for cutting the workpiece.

13. The laser cutting device according to claim 12, characterized in that: Also includes: A moving mechanism, wherein the moving mechanism is movable relative to the frame, and the dust hood and the laser cutting mechanism are both arranged on the moving mechanism.

14. A method for blowing and dust removal of a laser cutting device, characterized in that: The laser cutting device comprises a laser cutting mechanism and an air blowing and dust suction mechanism according to any one of claims 1 to 11, and the air blowing and dust suction method comprises: Place the workpiece to be cut on the cutting station; Turn on the vacuum cleaner; The laser cutting mechanism is turned on, and at the same time, the cooling air outlet delivers cooling air to the cutting workpiece, and the induced air outlet delivers induced air into the induced air duct.

15. The air blowing and dust removal method for a laser cutting device according to claim 14, characterized in that: The air blowing dust suction mechanism further includes: a dust suction platform, the dust suction platform includes a base and a hollow pad detachably connected to the base, the base and the hollow pad define a second dust suction cavity below the hollow pad, the dust suction port of the vacuum cleaner is connected to the second dust suction cavity, and a dust suction hole connected to the second dust suction cavity is formed on the hollow pad; placing the workpiece to be cut on the cutting station includes: The workpiece to be cut is placed on the hollow pad.

16. The air blowing and dust removal method for a laser cutting device according to claim 15, characterized in that: The dust hood and the laser cutting mechanism are movably arranged above the cutting station, the workpiece to be cut includes a plurality of cutting areas, and the dust hood and the laser cutting mechanism have a plurality of cutting positions corresponding to the plurality of cutting areas one by one; After the workpiece is placed on the cutting station and before the laser cutting mechanism is turned on, the process includes: The dust hood and the laser cutting mechanism move to any cutting position; After the current cutting area is cut, the dust hood and the laser cutting mechanism are moved to the remaining cutting positions in sequence until all cutting areas are cut, and the dust collector is turned off.

17. The air blowing and dust removal method for a laser cutting device according to claim 16, characterized in that: The dust hood and the laser cutting mechanism are moved to other cutting positions in sequence, including: When the dust hood and the laser cutting mechanism move between the plurality of cutting positions, the laser cutting mechanism is turned off; After the dust hood and the laser cutting mechanism are moved into place, the laser cutting mechanism is turned on.

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