Air knife structure of laser welding machine

Abstract

The utility model discloses an air knife structure of a laser welding machine, and relates to the technical field of air knives. The air knife comprises an air knife body, an air inlet is formed in the top of the air knife body, air outlet grooves are formed in the two sides of the bottom of the air knife body, an air partition plate is arranged in the center of the interior of the air knife body, an adjusting baffle is arranged below the air partition plate, and a rotating shaft is installed in the center of the adjusting baffle in a penetrating mode. Adjusting screws are arranged on the two sides of the rotating shaft. The adjusting baffle is driven to rotate by rotating the adjusting screw, the air outlet groove in one side is blocked by the adjusting baffle so that airflow can be exhausted from the air outlet groove in one side, the air outlet direction of the air knife is changed, the air knife does not need to be disassembled and reversely installed during adjustment, use is more flexible, and meanwhile two-way air outlet can be achieved by rotating the adjusting baffle to the middle position; and the air outlet area is larger, so that the cleaning effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of air knife technology, specifically, it relates to an air knife structure for a laser welding machine. Background Technology

[0002] Air knives have numerous applications in the industrial field, such as blowing away water and dust, removing dust and moisture from flat surfaces like steel plates and aluminum alloy profiles, removing welding slag from laser welding, and cleaning conveyor belts. With a compressed air supply, air knives can perfectly meet these applications.

[0003] Chinese patent CN214813246U discloses an air knife, comprising: an air knife body integrally formed, an air knife having an air inlet for connection to external pneumatic equipment, multiple interconnected chambers inside the air knife body, the chambers communicating with the air inlet, and an air outlet in the chamber opposite to the air inlet for exhausting air; the air knife also includes a sealing assembly installed at both ends of the air knife body to seal the inner cavity of the air knife body. Existing technology changes the air outlet direction of the air knife from vertical to oblique to improve air utilization, but the oblique air outlet can only blow air in one direction. When the air outlet needs to be adjusted, the air knife often has to be disassembled, reversed, and reinstalled, making it very inconvenient to use.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a laser welding machine air knife structure, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A laser welding machine air knife structure includes: an air knife body, an air inlet at the top of the air knife body, air outlet slots on both sides of the bottom of the air knife body, an air baffle plate at the center of the air knife body, an adjusting baffle plate below the air baffle plate, a rotating shaft through the center of the adjusting baffle plate, adjusting screws on both sides of the rotating shaft, bases on the bottom surfaces of both sides of the air knife body, the rotating shaft through the two bases, and an extension block extending inward from the top of the bases to fit the air outlet slots.

[0008] Optionally, an air guide block is fixedly connected to the top of the air baffle, and the air guide block is arc-shaped.

[0009] Optionally, a block is provided below the air inlet, and the block is positioned between two air guide blocks.

[0010] Optionally, sealing baffles are installed on both sides of the air knife body, and the sealing baffles have adjustment holes corresponding to the adjustment screws.

[0011] Optionally, the distance from the center of the adjusting baffle to the bottom of the windbreak plate and the distance to the top of the extending baffle are equal.

[0012] Optionally, the bottom of the windbreak plate is chamfered, and the thickness of the bottommost part of the windbreak plate is the same as the thickness of the adjusting baffle.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. The air knife structure of this laser welding machine drives the adjustment baffle to rotate by rotating the adjustment screw. The adjustment baffle blocks one side of the air outlet slot, allowing the airflow to exit from the other side. Rotating the adjustment baffle changes the air outlet direction of the air knife. There is no need to disassemble and reverse the air knife during adjustment, making it more flexible to use. At the same time, rotating the adjustment baffle to the middle position can achieve bidirectional air outlet, with a larger air outlet area to improve the cleaning effect.

[0015] 2. The air knife structure of this laser welding machine, with the assistance of the blocking block and air guide block at the top of the baffle plate, allows the air entering the air inlet to flow towards both ends, the air force is evenly distributed, and the air discharged from the air outlet is more uniform and stable, further improving the cleaning effect.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the picture:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a schematic diagram of the interior of the sealing baffle of this utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A shown

[0023] Figure 5 This is a schematic diagram of the structure below the air inlet of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Air knife body; 101. Air inlet; 102. Air outlet slot; 103. Mounting hole; 2. Air baffle; 201. Air guide block; 202. Block; 3. Adjusting baffle; 301. Adjusting screw; 302. Extension block; 303. Base; 4. Sealing baffle; 401. Adjusting hole.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Please see Figure 1-5 As shown in the figure, this embodiment provides a laser welding machine air knife structure, including: air knife body 1.

[0029] like Figures 1 to 4 As shown, the air knife body 1 of this embodiment has an air inlet 101 at the top and air outlet slots 102 on both sides of the bottom. An air baffle 2 is located at the center of the air knife body 1, and an adjusting baffle 3 is located below the air baffle 2. A rotating shaft is installed through the center of the adjusting baffle 3, and adjusting screws 301 are located on both sides of the rotating shaft. Bases 303 are located on the bottom surfaces of both sides of the air knife body 1, and the rotating shaft is installed through two bases 303. An extension block 302 extends inward from the top of the base 303, fitting against the air outlet slot 102. The air outlet slots 102 are located on the inclined sides of the bottom of the air knife body 1, with one on each side. In use, an air compressor is connected to the air inlet 101, and the entire air knife body 1 is mounted on a laser welding machine, with the air outlet slots 102 close to the welding position. Air is pumped into the air knife body 1 by an air compressor. The air enters the air knife body 1 and the bottom adjusting baffle 3 is vertically upward and parallel to the air baffle 2. The two separate the air knife body 1 into two parts, so that the air entering is sprayed out from different air outlets 102 at the same time. This achieves air outlet from both the front and rear of the air knife body 1, resulting in a wider cleaning area. The bottom adjusting baffle 3 can rotate around the pivot, which is supported by the two bases 303. The bases 303 extend into the center of the air knife body 1 with extension blocks 302, which are set above the two air outlets 102. When the adjusting baffle 3 rotates, it will be blocked by the extension blocks 302 and cannot move downward. The adjusting baffle 3 can cover the air outlet 102 on one side, so that the air force is concentrated and sprayed out from the air outlet 102 on the other side.

[0030] like Figure 5As shown, in this embodiment, the top of the wind baffle 2 is fixedly connected to a guide block 201, which is arc-shaped. The guide block 201 is symmetrically arranged inside the air knife body 1, with an arc that rises to the far end on both sides. This causes a portion of the air blown into the air knife body 1 to flow upwards and then move to both sides of the air knife body 1 by subsequent wind force. This avoids excessive airflow from concentrating at the center of the air outlet 102, resulting in more uniform airflow.

[0031] like Figure 5 As shown, a block 202 is provided below the air inlet 101 in this embodiment, and the block 202 is located between two air guide blocks 201. The block 202 is used to prevent the air entering from the air inlet 101 from passing directly through the two sides of the baffle plate 2 and being discharged from the air outlet 102. In this way, the air in the center is unobstructed, and the air generated by the air outlet 102 will inevitably be larger in the center and smaller on both sides, resulting in uneven air output. By blocking the air in the center with the block 202, the air in the center is redirected to flow to both sides. With the help of the air guide blocks 201, the air force is evenly distributed, and the overall air output can be more uniform.

[0032] like Figure 1 As shown, in this embodiment, sealing baffles 4 are installed on both sides of the air knife body 1. The sealing baffles 4 have adjustment holes 401 at the corresponding adjustment screws 301. The multiple sets of mounting holes on the sealing baffles 4 are aligned with the mounting holes on both sides of the air knife body 1. By fastening, the entire air knife body 1 is sealed on both sides to prevent air leakage. The adjustment holes 401 are aligned with the adjustment screws 301 so that the operator can rotate the adjustment screws 301 to adjust the position of the adjustment baffles 3.

[0033] like Figure 2 As shown, in this embodiment, the distance from the axis of the adjusting baffle 3 to the bottom of the windbreak plate 2 and the distance to the top of the extension block 302 are equal. When the adjusting baffle 3 rotates around the pivot, the front end of the adjusting baffle 3 makes an arc motion. Sufficient space needs to be reserved below the windbreak plate 2 to ensure that the baffle 3 can rotate. When the baffle 3 is in contact with the surface of the extension block 302 on one side, the airflow blows and squeezes the surface of the baffle 3 so that it is firmly pressed on the extension baffle 302. When the baffle 3 is vertically upward below the windbreak plate 2, the airflow blows from both sides and the airflow on both sides squeezes and pushes to fix the baffle 3 in the center position, so that the baffle 3 will not fall down easily.

[0034] like Figure 2 As shown, the bottom of the windbreak plate 2 in this embodiment is chamfered, and the thickness of the bottommost part of the windbreak plate 2 is the same as the thickness of the adjusting baffle 3. When the adjusting baffle 3 is rotated to the bottom of the windbreak plate 2, the two are in contact and will not collide. The bottom chamfer makes the upper wind blow downwards and adhere to the windbreak plate 2 to both sides of the adjusting baffle 3. The wind pressure makes the adjusting baffle 3 more stable under the windbreak plate 2, and the adjusting baffle 3 will not easily shake.

[0035] Example 1:

[0036] In this embodiment, when only one side needs to be vented, by rotating the adjusting screw 301, the adjusting baffle 3 is rotated to one side around the pivot until it rests on the extension block 302, thereby blocking the air outlet 102 on one side. This allows the air blown from that side to pass through the bottom of the baffle 2 and converge with the other side, and finally be discharged from a single air outlet 102. Compared to dual-sided venting, the air force is not dispersed and is stronger. When the other side needs to be vented, simply rotate the adjusting screw 301 to let the adjusting baffle 3 rest on another extension block 302. When the adjusting baffle 3 is rotated until the bottom of the baffle 2 is parallel, the air outlets 102 on both sides open simultaneously. The air entering through the air inlet 101 is divided into two parts by the baffle 2 and discharged from the corresponding air outlet 102, achieving simultaneous venting from both sides.

[0037] Example 2:

[0038] In this embodiment, an external air compressor injects air into the air knife body 1 through the air inlet 101. The airflow passes through the air inlet 101 and is blocked by the block 202, blowing to both sides. It is then guided and separated by multiple sets of air guide blocks 201 and flows back upward. This process is repeated so that the airflow can flow downward from the gaps between each air guide block 201, ensuring that there is airflow even at a distance from the air knife body 1. The overall airflow is then pressurized and ejected through the air outlet 102, making the airflow ejected from the entire air outlet 102 more uniform and the blowing range wider.

[0039] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A structure for an air knife in a laser welding machine, characterized in that, include: The air knife body (1) has an air inlet (101) at the top and air outlet slots (102) on both sides of the bottom. An air baffle (2) is provided at the center of the air knife body (1). An adjusting baffle (3) is provided below the air baffle (2). A rotating shaft is installed through the center of the adjusting baffle (3). Adjusting screws (301) are provided on both sides of the rotating shaft. A base (303) is provided on the bottom surface of both sides of the air knife body (1). The rotating shaft is installed through the two bases (303). An extension baffle (302) is provided on the top of the base (303) and extends inward along the air outlet slot (102).

2. The air knife structure for a laser welding machine according to claim 1, characterized in that, The top of the windbreak plate (2) is fixedly connected to a wind guide block (201), which is arc-shaped.

3. The air knife structure for a laser welding machine according to claim 1 or 2, characterized in that, A block (202) is provided below the air inlet (101), and the block (202) is located between two air guide blocks (201).

4. The air knife structure for a laser welding machine according to claim 1, characterized in that, The air knife body (1) is equipped with sealing baffles (4) on both sides, and the sealing baffles (4) have adjustment holes (401) at the corresponding adjustment screws (301).

5. The air knife structure for a laser welding machine according to claim 1, characterized in that, The distance from the center of the adjusting baffle (3) to the bottom of the windbreak plate (2) is equal to the distance to the top of the extension block (302).

6. The air knife structure for a laser welding machine according to claim 1, characterized in that, The bottom of the windbreak plate (2) is chamfered, and the thickness of the bottom of the windbreak plate (2) is the same as the thickness of the adjusting baffle (3).

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