Blowing device and laser apparatus

Abstract

The utility model provides a kind of blowing device and laser equipment, blowing device includes: shell, shell is equipped with blowing passage in its height direction first side, shell is equipped with air inlet in its height direction second side, air inlet is communicated with blowing passage;Blowing passage is equipped with multiple orifice plates spacedly distributed along the height direction of shell;In the height direction of shell, the projection of at least part of hole body on at least two orifice plates is mutually staggered.The blowing device of the utility model, by being spacedly arranged multiple orifice plates along the height direction of shell in blowing passage, and the projection of at least part of hole body on at least two orifice plates is mutually staggered, can realize the effective dispersion of airflow, can effectively improve the uniformity of blowing device air outlet, effectively avoid the problem that local airflow is too strong or too weak, to optimize the dust removal effect in welding and cutting process, effectively solve the welding cutting quality problem caused by uneven dust removal, to improve the overall quality of laser welding cutting.

Description

Technical Field

[0001] This utility model relates to the field of laser equipment technology, and more specifically, to an air blowing device and a laser device. Background Technology

[0002] During laser welding and cutting, a large amount of dust particles are generated, which can affect welding quality and threaten the health of operators. Currently, the common dust removal method involves using a combination of air blowers and suction nozzles to blow dust towards the suction nozzle for removal. However, the uniform distribution of holes in the internal perforated plate of existing air blowers leads to uneven airflow, resulting in unsatisfactory dust removal and affecting the quality of laser welding and cutting. Utility Model Content

[0003] This invention provides a new technical solution for an air blowing device, which can at least solve the technical problem of poor air uniformity of existing air blowing nozzles.

[0004] This utility model also provides a new technical solution for laser equipment.

[0005] According to a first aspect of the present invention, an air blowing device is provided, comprising:

[0006] The housing has an air blowing channel on a first side in the height direction and an air inlet on a second side in the height direction, the air inlet being connected to the air blowing channel;

[0007] The air blowing channel is provided with a plurality of perforated plates spaced apart along the height direction of the housing;

[0008] In the height direction of the housing, the projections of at least a portion of the holes on at least two of the perforated plates are staggered from each other.

[0009] Optionally, in the direction from the first side to the second side of the housing, the pore density of the perforated plate at the first end is less than that of the perforated plate at the tail end.

[0010] Optionally, the air blowing channel is provided with at least three perforated plates, and the perforation density of the perforated plate located at the tail end is greater than that of the other perforated plates in the direction from the first side to the second side of the housing.

[0011] Optionally, the second side of the housing is provided with a plurality of air inlets, which are spaced apart along the length of the housing.

[0012] Optionally, in the height direction of the housing, the projections of at least a portion of the holes on adjacent perforated plates are distributed at intervals in the length direction of the housing.

[0013] Optionally, from the first side to the second side of the housing, the perforated plate at the tail end has a perforation body consisting of a first perforation body, a second perforation body, and a third perforation body, while the perforation bodies of the remaining perforated plates have a perforation body consisting of a first perforation body and a second perforation body.

[0014] Wherein, in the length direction of the housing, the second hole is adjacent to the air inlet;

[0015] In the height direction of the housing, the projections of the first holes on adjacent perforated plates are distributed at intervals in the length direction of the housing.

[0016] The projections of the second holes on adjacent perforated plates coincide, and the projections of the third holes on the end-positioned perforated plate coincide with the projections of the first holes on adjacent perforated plates.

[0017] Optionally, in the length direction of the housing, the perforated plate is provided with the second hole on both sides of the air inlet.

[0018] Optionally, the air inlet is opposite to one or more of the first holes of the adjacent perforated plate.

[0019] Optionally, in the length direction of the housing, the first hole and the third hole on the perforated plate at the tail end are staggered.

[0020] Optionally, the perforated plate at the tail end is spaced apart from the opening end of the air blowing channel in the direction from the first side to the second side of the housing.

[0021] According to a second aspect of the present invention, a laser device is provided, comprising the air blowing device described in any of the preceding claims.

[0022] According to the present invention, the air blowing device, by arranging multiple perforated plates at intervals along the height direction of the housing in the air blowing channel, and making the projections of at least a portion of the holes on at least two perforated plates staggered from each other, can effectively disperse the airflow, effectively improve the uniformity of the air output of the air blowing device, effectively avoid the problem of excessively strong or weak local airflow, thereby optimizing the dust removal effect during welding and cutting, effectively solving the welding and cutting quality problems caused by uneven dust removal, and thus improving the overall quality of laser welding and cutting.

[0023] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0025] Figure 1 This is a diagram showing the gas velocity distribution at the air outlet of an existing air nozzle during use.

[0026] Figure 2 It is a diagram showing the airflow trajectory and velocity of an existing air nozzle during use, both inside the nozzle and at its outlet.

[0027] Figure 3 This is a schematic diagram of the structure of an air blowing device according to an embodiment of the present invention;

[0028] Figure 4 This is a gas velocity distribution diagram of the airflow at the air outlet of an air blowing device according to an embodiment of the present invention during use;

[0029] Figure 5 This is a diagram showing the airflow trajectory and velocity of the airflow inside the device and at its outlet during use, according to an embodiment of the present invention.

[0030] Figure 6 This is a flow velocity distribution diagram at 3mm from the air outlet of an air blowing device according to an embodiment of the present invention and an existing air blowing nozzle.

[0031] Figure Labels

[0032] 100. Air blowing device; 10. Housing; 11. Air blowing channel; 12. Air inlet; 20. Orifice plate; 21. First orifice; 22. Second orifice; 23. Third orifice. Detailed Implementation

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0035] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0036] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0038] The blowing device 100 according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0039] like Figure 3 As shown, the air blowing device 100 according to an embodiment of the present utility model includes: a housing 10.

[0040] Specifically, the housing 10 has an air blowing channel 11 on a first side in the height direction, and an air inlet 12 on a second side in the height direction, the air inlet 12 being connected to the air blowing channel 11; the air blowing channel 11 has a plurality of perforated plates 20 spaced apart along the height direction of the housing 10; in the height direction of the housing 10, at least a portion of the holes on at least two of the perforated plates 20 are staggered from each other.

[0041] In other words, the air blowing device 100 according to this embodiment of the utility model mainly includes a housing 10 and a plurality of perforated plates 20. The housing 10 can be an elongated structure, and the housing 10 has a first side and a second side arranged opposite to each other in its height direction. An air blowing channel 11 is formed on the first side of the housing 10, and an air inlet 12 communicating with the air blowing channel 11 is provided on the second side of the housing 10. The plurality of perforated plates 20 are spaced apart in the air blowing channel 11 along the thickness direction of the housing 10, and the perforated plates 20 have a plurality of holes penetrating along their thickness direction. The position of the holes on the perforated plates 20 will be described in detail below, taking two perforated plates 20 as an example.

[0042] The plurality of perforated plates 20 includes a first perforated plate 20 and a second perforated plate 20, with the first perforated plate 20 located on the side of the second perforated plate 20 closer to the air inlet 12. In the height direction of the housing 10, the projections of at least a portion of the perforations in the first perforated plate 20 and at least a portion of the perforations in the second perforated plate 20 are offset from each other, meaning their projections partially overlap or do not overlap at all. Based on this, when some airflow passes through the perforations in the first perforated plate 20, it impacts the portion of the second perforated plate 20 without perforations, thus dispersing it in all directions. The dispersed airflow then continues to flow through the perforations in the second perforated plate 20, thereby effectively improving the uniformity of the airflow.

[0043] Therefore, according to the air blowing device 100 provided in this embodiment, by arranging multiple perforated plates 20 at intervals along the height direction of the housing 10 in the air blowing channel 11, and making the projections of at least a portion of the holes on at least two perforated plates 20 staggered from each other, the airflow can be effectively dispersed, which can effectively improve the uniformity of the air outlet of the air blowing device 100, effectively avoid the problem of excessively strong or weak local airflow, thereby optimizing the dust removal effect during welding and cutting, effectively solving the welding and cutting quality problem caused by uneven dust removal, and thus improving the overall quality of laser welding and cutting.

[0044] In some specific embodiments of this utility model, from the first side to the second side of the housing 10, the pore density of the perforated plate 20 at the first end is less than that of the perforated plate 20 at the tail end.

[0045] In other words, from the first side to the second side of the housing 10, the pore density of the first orifice plate 20 is less than that of the last orifice plate 20. A lower pore density indicates fewer pores per unit area, which ensures uniform air pressure at all positions on the air inlet side of the first orifice plate 20. This facilitates uniform airflow from all positions on the first orifice plate 20. Finally, the airflow is further dispersed by the last orifice plate 20, which has a higher pore density, thus effectively improving the uniformity of the airflow from the blowing device 100.

[0046] According to one embodiment of the present invention, the air blowing channel 11 is provided with at least three perforated plates 20. In the direction from the first side to the second side of the housing 10, the perforation density of the perforated plate 20 located at the tail end is greater than the perforation density of the other perforated plates 20.

[0047] Specifically, the air blowing channel 11 is provided with three perforated plates 20. From the first side to the second side of the housing 10, the pore density of the third perforated plate 20 is greater than that of the first and second perforated plates 20. That is, the first perforated plate 20 has a smaller pore density, which can initially distribute the airflow evenly and avoid local airflow concentration; the second perforated plate 20 can further adjust the airflow distribution; and the third perforated plate 20, with the largest pore density, can finally disperse the airflow, thereby making the outlet airflow more uniform.

[0048] In some specific embodiments of this utility model, the second side of the housing 10 is provided with a plurality of air inlets 12, and the plurality of air inlets 12 are distributed at intervals along the length direction of the housing 10.

[0049] In this embodiment, there are multiple air inlets 12, such as two. Through multiple air inlets 12, air can be supplied to the air blowing channel 11 at different positions along the length of the housing 10, thereby improving the uniformity of airflow distribution in the air blowing channel 11 and making the air blowing device 100 output air more evenly.

[0050] According to one embodiment of the present invention, in the height direction of the housing 10, the projections of at least a portion of the holes on adjacent perforated plates 20 are distributed at intervals in the length direction of the housing 10.

[0051] In other words, in the height direction of the housing 10, the projections of at least a portion of the holes in one of the adjacent perforated plates 20 and the projections of at least a portion of the holes in the other perforated plate 20 are spaced apart in the length direction (i.e., the X direction) of the housing 10. Based on this, when the airflow passes through the holes of the upstream perforated plate 20 and impacts the downstream perforated plate 20, it will make full contact with the solid part of the downstream perforated plate 20 and be guided to disperse in all directions, thereby making the airflow more evenly distributed to various areas of the downstream perforated plate 20, further enhancing the airflow dispersion effect, and significantly improving the uniformity of the airflow from the blowing device 100.

[0052] In some specific embodiments of this utility model, from the first side to the second side of the housing 10, the perforated plate 20 at the tail end is composed of a first perforated body 21, a second perforated body 22, and a third perforated body 23, while the perforated bodies of the remaining perforated plates 20 are composed of a first perforated body 21 and a second perforated body 22. In the length direction of the housing 10, the second perforated body 22 is adjacent to the air inlet 12. In the height direction of the housing 10, the projections of the first perforated bodies 21 on adjacent perforated plates 20 are spaced apart in the length direction of the housing 10, the projections of the second perforated bodies 22 on adjacent perforated plates 20 coincide, and the projection of the third perforated body 23 on the perforated plate 20 at the tail end coincides with the projection of the first perforated body 21 on the adjacent perforated plate 20.

[0053] Specifically, from the first side to the second side of the housing 10, the last perforated plate 20 has three types of perforations: a first perforation 21, a second perforation 22, and a third perforation 23; the remaining perforated plates 20 have two types of perforations: a first perforation 21 and a second perforation 22. In the height direction of the housing 10, the projections of the first perforations 21 on adjacent perforated plates 20 are spaced apart in the length direction of the housing 10. When airflow passes through the first perforation 21 on the upstream perforated plate 20, it impacts the solid portion of the downstream perforated plate 20 and then disperses outwards.

[0054] Because the airflow exiting from the air inlet 12 has a relatively high velocity, when it impacts the solid portion of the perforated plate 20, the velocity of the airflow dispersed in all directions is also relatively high, with most of the airflow flowing to both sides of the blowing channel 11. Therefore, by placing the second orifice 22 adjacent to the air inlet 12 along the length of the housing 10, and ensuring that the projections of the second orifices 22 on the adjacent perforated plates 20 coincide, flow resistance can be effectively reduced, allowing the airflow to flow smoothly from the second orifice 22 adjacent to the air inlet 12, thereby further improving the uniformity of the airflow from the blowing device 100.

[0055] Furthermore, the projection of the third orifice 23 on the last orifice plate 20 coincides with that of the first orifice 21 on the adjacent orifice plate 20. Through the synergistic effect of the first orifice 21, the second orifice 22 and the third orifice 23 on the last orifice plate 20, the airflow distribution can be further optimized, so that the airflow can flow out more evenly when passing through the last orifice plate 20.

[0056] According to one embodiment of the present invention, in the length direction of the housing 10, the perforated plate 20 is provided with the second hole 22 on both sides of the air inlet 12.

[0057] In this embodiment, by providing second holes 22 on both sides of the air inlet 12, the airflow intensity on both sides can be effectively balanced, thereby significantly improving the uniformity of the air output from the blowing device 100.

[0058] In some specific embodiments of this utility model, the diameter of the air inlet 12 is larger than the diameter of the hole body, and the air inlet 12 is opposite to one or more of the first holes 21 of the adjacent hole plate 20.

[0059] In other words, the radial dimension of the air inlet 12 is larger than the radial dimension of the first hole 21. In the height direction of the housing 10, the air inlet 12 is opposite to one or more first holes 21 on the first perforated plate 20. This can avoid wasting space on the first perforated plate 20 and further improve the uniformity of airflow distribution, providing better initial conditions for subsequent airflow dispersion and homogenization.

[0060] According to one embodiment of the present invention, in the length direction of the housing 10, the first hole 21 and the third hole 23 on the perforated plate 20 located at the tail end are arranged alternately.

[0061] In this embodiment, the first orifice 21 and the third orifice 23 are arranged alternately on the orifice plate 20 at the tail end, thereby more effectively dispersing the airflow and ensuring that the airflow is more uniform when passing through the tail end orifice plate 20.

[0062] In some specific embodiments of this utility model, from the first side to the second side of the housing 10, the perforated plate 20 at the tail end is spaced apart from the opening end of the air blowing channel 11.

[0063] In other words, the perforated plate 20 at the tail end is located inside the air blowing channel 11 and is spaced apart from the opening end of the air blowing channel 11, thereby forming a certain buffer space between the perforated plate 20 at the tail end and the opening end of the air blowing channel 11, which makes the airflow blown out from the opening end of the air blowing channel 11 more uniform.

[0064] According to this utility model Figure 1 and Figure 2 It is known that the high-speed airflow generated by existing air outlets is mainly concentrated in the central area of ​​the outlet and its surrounding areas, resulting in a significantly uneven airflow distribution. In contrast, according to this utility model... Figure 4 and Figure 5 It can be seen that the blowing device 100 involved in this utility model embodiment has significantly improved the uniformity of air velocity distribution at the air outlet, and the airflow is more evenly distributed throughout the entire air outlet range.

[0065] Furthermore, according to the present utility model Figure 6 Data calculations show that the range of wind speed at 3mm from the outlet of the air blowing device 100 in this embodiment is much smaller than that of existing air nozzles. Furthermore, calculations show that the variance of the wind speed at 3mm from the outlet of the air blowing device 100 in this embodiment is only 0.37, while the variance of the wind speed at 3mm from the outlet of existing air nozzles is as high as 29.3.

[0066] Therefore, the air blowing device 100 of this utility model embodiment can effectively improve the uniformity of the air blowing device 100, effectively avoid the problem of excessively strong or weak local airflow, thereby optimizing the dust removal effect during welding and cutting, effectively solving the welding and cutting quality problem caused by uneven dust removal, and thus improving the overall quality of laser welding and cutting.

[0067] An embodiment of this utility model also provides a laser device, which is a laser welding device or a laser cutting device. This laser device includes the air blowing device 100 described in any of the above embodiments. Since the air blowing device 100 according to the embodiments of this utility model has the above-described technical effects, the laser device according to the embodiments of this utility model also has corresponding technical effects, which will not be repeated in this embodiment.

[0068] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0069] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An air blowing device, characterized in that, include: The housing (10) has an air blowing channel (11) on a first side in the height direction and an air inlet (12) on a second side in the height direction, the air inlet (12) being connected to the air blowing channel (11). The air blowing channel (11) is provided with a plurality of perforated plates (20) spaced apart along the height direction of the housing (10); In the height direction of the housing (10), the projections of at least a portion of the holes on at least two of the perforated plates (20) are staggered from each other.

2. The air blowing device according to claim 1, characterized in that, In the direction from the first side to the second side of the housing (10), the pore density of the perforated plate (20) at the first end is less than that at the last end.

3. The air blowing device according to claim 1, characterized in that, The air blowing channel (11) is provided with at least three perforated plates (20). From the first side to the second side of the housing (10), the perforation density of the perforated plate (20) located at the tail end is greater than the perforation density of the other perforated plates (20).

4. The air blowing device according to claim 1, characterized in that, The second side of the housing (10) is provided with a plurality of air inlets (12), and the plurality of air inlets (12) are spaced apart along the length direction of the housing (10).

5. The air blowing device according to claim 1, characterized in that, In the height direction of the housing (10), the projections of at least a portion of the holes on adjacent perforated plates (20) are distributed at intervals in the length direction of the housing (10).

6. The air blowing device according to claim 1, characterized in that, From the first side to the second side of the housing (10), the perforated plate (20) at the tail end is composed of a first perforated body (21), a second perforated body (22) and a third perforated body (23), and the perforated plates (20) of the remaining perforated plates (20) are composed of a first perforated body (21) and a second perforated body (22). In the longitudinal direction of the housing (10), the second hole (22) is adjacent to the air inlet (12); In the height direction of the housing (10), the projections of the first holes (21) on adjacent perforated plates (20) are distributed at intervals in the length direction of the housing (10). The projections of the second hole (22) on the adjacent perforated plates (20) coincide, and the projections of the third hole (23) on the end of the perforated plate (20) coincide with the projections of the first hole (21) on the adjacent perforated plate (20).

7. The air blowing device according to claim 6, characterized in that, Along the length of the housing (10), the perforated plate (20) is provided with the second hole (22) on both sides of the air inlet (12).

8. The air blowing device according to claim 6, characterized in that, The radial dimension of the air inlet (12) is greater than the radial dimension of the orifice, and the air inlet (12) is opposite to one or more of the first orifices (21) of the adjacent orifice plate (20).

9. The air blowing device according to claim 6, characterized in that, Along the length of the housing (10), the first hole (21) and the third hole (23) on the perforated plate (20) at the tail end are staggered.

10. The air blowing device according to claim 1, characterized in that, In the direction from the first side to the second side of the housing (10), the perforated plate (20) at the tail end is spaced apart from the opening end of the air blowing channel (11).

11. A laser device, characterized in that, The blowing device includes any one of claims 1 to 10.

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