Internal wind pressure uniform distribution device for full-surrounding laser cutting machine

Abstract

The utility model discloses an internal wind pressure uniform distribution device for a full-surrounding laser cutting machine, which relates to the technical field of laser cutting processing devices and comprises a conical diverging device, the conical diverging device is mounted in the full-surrounding laser cutting machine, and the tip of the conical diverging device faces a blower positioned at the top of the full-surrounding laser cutting machine. A plurality of air holes are formed in the conical diverging device and distributed in the side face of the conical diverging device in an annular array mode. While the smoke suction and dust removal effects of the full-surrounding laser cutting machine are achieved, the arrangement number of the top air blowers is reduced, the turbulent flow phenomenon caused by direct blowing of the air blowers to the equipment space is reduced, smoke dust can be evenly discharged out of the equipment space in order according to the cutting sequence, environmental pollution is prevented, energy is saved, emission is reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting processing devices, in particular to an internal wind pressure uniform distribution device for a fully enclosed laser cutting machine. Background Art

[0002] Since its introduction, laser cutting machines have greatly accelerated the process of social industrialization. They have not only been widely used in military and national defense, but have also been involved in the processing and manufacturing of products in all aspects of production and life. The use of laser cutting machines has greatly saved materials, reduced production costs, and improved the efficiency and processing accuracy of pipe cutting. However, while laser cutting machines produce high-efficiency products, they will produce a large amount of smoke, causing pollution to the factory area and damage to the environment. Smoking and dust removal mainly uses the pressure difference of atmospheric pressure to make the air flow from the low-pressure and low-flow area to the high-pressure and high-flow area, thereby forming an airflow, and the dust and particles entrained in the air are centrally processed through the smoking equipment for harmless discharge. In the prior art, the smoking and dust removal device of the laser cutting machine forms the pressure difference of atmospheric pressure by blowing air through a hair dryer located on the top of the laser cutting machine, but the direct blowing of the hair dryer brings a very serious turbulence phenomenon to the equipment space, so that the smoke and dust cannot be discharged from the equipment space evenly, causing environmental pollution. Utility Model Content

[0003] In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides an internal wind pressure uniform distribution device for a fully enclosed laser cutting machine, which reduces the turbulence phenomenon caused by the direct blowing of the hair dryer to the equipment space, so that the smoke and dust can be discharged from the equipment space in an orderly and uniform manner according to the cutting sequence, thereby preventing environmental pollution, saving energy and reducing emissions, and reducing costs.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An internal wind pressure uniform distribution device for a fully enclosed laser cutting machine comprises a conical diverging device, wherein the conical diverging device is installed inside the fully enclosed laser cutting machine, and the tip of the conical diverging device faces a blower located on the top of the fully enclosed laser cutting machine;

[0006] The conical diverging device is provided with a plurality of air holes, and the air holes are arranged in a circular array on the side surface of the conical diverging device.

[0007] As a further implementation, the annular array is a concentric annular array.

[0008] As a further implementation, the pores of a portion of the annular array close to the tip of the conical diverging device are densely distributed, and the pores of a portion of the annular array far from the tip of the conical diverging device are sparsely distributed.

[0009] As a further implementation, in the concentric annular array, the angle between the straight lines formed by the lines connecting the air holes on the inner ring to the air holes on the outer ring along the generatrix direction of the cone is set.

[0010] As a further implementation method, the conical diverging device is installed inside a large enclosure that fully surrounds the laser cutting machine through an open upper sealing plate.

[0011] As a further implementation method, a plurality of the conical diverging devices are provided inside the fully enclosed laser cutting machine and are reasonably arranged according to specific dimensions.

[0012] As a further implementation, the pores are elliptical.

[0013] As a further implementation, an air flow channel formed by air suction from an exhaust fan is provided below the conical diverging device.

[0014] As a further implementation, the position of the cut plate inside the fully enclosed laser cutting machine is located below the conical diverging device and above the air flow channel.

[0015] As a further implementation, the air outlet of the hair dryer is perpendicular to the top of the large enclosure that fully surrounds the laser cutting machine, and the tip of the conical diverging device is directly opposite to the air outlet of the hair dryer.

[0016] The beneficial effects of the above utility model are as follows:

[0017] The utility model provides an internal wind pressure uniform distribution device for a fully enclosed laser cutting machine, which is installed on the top of the internal large enclosure of the fully enclosed laser cutting machine and is located below the air outlet of the blower. While meeting the smoke and dust removal effect of the fully enclosed laser cutting machine, the number of top fans arranged can be reduced, and the turbulence phenomenon caused by the direct blowing of the blower to the equipment space can be reduced. The smoke and dust can be effectively and evenly discharged from the equipment space according to the cutting order, preventing environmental pollution, saving energy, reducing emissions, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of a fully enclosed laser cutting machine equipped with the wind pressure uniform distribution device of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the wind pressure uniform distribution device of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the conical diverging device of the utility model at different angles.

[0022] Among them, 1. Conical diverging device, 2. Open hole upper sealing plate, 3. Blower, 4. Large surround. DETAILED DESCRIPTION

[0023] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0024] Embodiment 1

[0025] like Figure 1-2 As shown, this embodiment provides an internal wind pressure uniform distribution device for a fully enclosed laser cutting machine, including a conical diverging device, which is installed inside the fully enclosed laser cutting machine and installed inside the large enclosure of the fully enclosed laser cutting machine through an upper sealing plate with a hole. Its tip faces the hair dryer located at the top of the fully enclosed laser cutting machine. The air outlet of the hair dryer is perpendicular to the top of the large enclosure of the fully enclosed laser cutting machine, and the tip of the conical diverging device is directly opposite to the air outlet of the hair dryer, and the conical diverging device is provided with a plurality of air holes. This design can make the conical diverging device partially block and reflect the direct current wind blown out from the air outlet of the hair dryer, a part of which continues to blow downward through the air holes of the device, a part of which blows downward along the surface contour of the diverging device because the flow rate is not large, and a part of which hits the surface of the device due to excessive speed and refracts, thereby being rebounded laterally, and continuing to rebound back to the large enclosure by the upper sealing plate with a hole, resulting in the airflow of the fan with a diameter of 300mm blowing vertically downward being dispersed to the inside of the large enclosure due to the blocking effect of the device to form a wind pressure area greater than 600mm in diameter.

[0026] An airflow channel formed by air suction from an exhaust fan is provided below the conical diverging device. The position of the cut plate inside the fully enclosed laser cutting machine is located below the conical diverging device and above the airflow channel. Since the device is located in a sealed environment with an upper seal and a 5.5kw exhaust fan sucking air from the lower part, the fan can apply uniform wind pressure to the position of the cut plate after a period of time. At this time, cutting begins, and smoke and dust will form an airflow with the continuous influx of upper air and the traction of the fan below, bringing the exhaust gas and smoke and dust from cutting into the exhaust fan below for the next step of processing.

[0027] like Figure 3As shown, the pores are elliptical, and in this embodiment, 4*10mm slots are preferably used, so that the wind can leak out along the blowing direction, reduce the small area of ​​the circular hole to block the passage of the airflow and do not affect its structural strength. The pores are arranged on the side of the conical diverging device in the form of a concentric annular array. According to the strength of the airflow diffusion and the amount of airflow required, the pores of the part of the annular array close to the tip of the conical diverging device are densely distributed, and the pores of the part away from the tip of the conical diverging device are sparsely distributed. In the concentric annular array, along the generatrix direction of the cone, the angle between the straight lines formed by the lines connecting the pores on the inner ring to the pores on the outer ring is set, and the set angle is related to the air flow and the opening area of ​​the conical diverging device. In this embodiment, it is set to between 10-30 degrees. Such a design can ensure that 1 / 4 of the air volume blows through this hole, so that the airflow is full directly below the device, and there will be no airflow depression, and the side air pressure filling will also be reduced. A small part of the airflow blows directly downward. At this time, affected by the viscosity of the airflow and other wind forces, only a part of the airflow along the edge will blow vertically downward, and the rest of the airflow will rebound laterally due to the obstruction of the device and refract. With the occurrence of refraction and rebound, the airflow will reverse and reverse again. However, due to the influence of reversal, the pressure of the airflow will also decrease, and the flow rate will be at least 50% weaker than the initial state. At this time, if there is no obstruction, it will extend wirelessly according to the distance of airflow transmission; but we are using a confined space, and when the airflow extends to a diameter of 1100mm, it will be affected by other external forces and blow downward. So at this time, the airflow continues to increase, and the pressure will slowly reach the same intensity and move downward at the same time. The change of this movement wind pressure is based on the power and air volume of the "power source" fan, but when it drops to a certain distance, the pressure in each direction will be the same, and the effect of uniform wind pressure is achieved at this time.

[0028] The conical diverging devices are provided in multiple numbers inside the fully enclosed laser cutting machine and are arranged reasonably according to specific sizes, so as to form a uniform wind pressure inside the entire fully enclosed laser cutting machine.

[0029] The utility model provides an internal wind pressure distribution device for a fully enclosed laser cutting machine, which can meet the smoke and dust removal effect of a large enclosed laser cutting machine while reducing the number of top fans arranged, and reducing the turbulence caused by the direct blowing of the blower to the equipment space. The smoke and dust can be uniformly discharged from the equipment space in an orderly manner according to the cutting sequence, preventing environmental pollution, saving energy and reducing emissions, and reducing costs.

[0030] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An internal wind pressure distribution device for a fully enclosed laser cutting machine, characterized in that: It includes a conical diverging device, which is installed inside the fully enclosed laser cutting machine, with its tip facing the blower located on the top of the fully enclosed laser cutting machine; The conical diverging device is provided with a plurality of air holes, and the air holes are arranged in a circular array on the side surface of the conical diverging device.

2. The internal wind pressure distribution device for a fully enclosed laser cutting machine as claimed in claim 1, characterized in that: The annular array is a concentric annular array.

3. The internal wind pressure distribution device for a fully enclosed laser cutting machine as claimed in claim 2, characterized in that: The pores of the annular array are densely distributed in a portion close to the tip of the conical diverging device, and sparsely distributed in a portion far from the tip of the conical diverging device.

4. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 2, characterized in that: In the concentric annular array, along the generatrix direction of the cone, the angle between the straight lines formed by the lines connecting the air holes on the inner ring to the air holes on the outer ring is set.

5. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 1, characterized in that: The conical diverging device is installed inside a large enclosure that fully surrounds the laser cutting machine through an open hole upper sealing plate.

6. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 1, characterized in that: The conical diverging devices are provided in plurality inside the fully enclosed laser cutting machine and are reasonably arranged according to specific dimensions.

7. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 1, characterized in that: The pores are elliptical.

8. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 1, characterized in that: An air flow channel formed by air suction from an exhaust fan is arranged below the conical diverging device.

9. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 8, characterized in that: The position of the cut plate inside the fully enclosed laser cutting machine is located below the conical diverging device and above the air flow channel.

10. The internal wind pressure uniform distribution device for a fully enclosed laser cutting machine as claimed in claim 1, characterized in that: The air outlet of the hair dryer is perpendicular to the top of the large enclosure that fully surrounds the laser cutting machine, and the tip of the conical diverging device is directly opposite to the air outlet of the hair dryer.

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