Smoke adsorption device for pine board laser cutting

Abstract

The utility model relates to the technical field of laser cutting, in particular to a pine board laser cutting smoke dust adsorption device which comprises a cutting platform, a smoke suction assembly and a smoke guide cover, a moving mechanism is arranged on the cutting platform, and a laser cutting device is arranged on the moving mechanism. The smoke suction assembly is arranged on the moving mechanism, synchronously moves along with the moving mechanism and is used for adsorbing smoke dust generated during laser cutting, the smoke suction assembly comprises an adsorption mechanism and a smoke suction nozzle connected with the output end of the adsorption mechanism, and the smoke guide cover is arranged on the periphery of the laser cutting equipment. Smoke dust generated during laser cutting is guided upwards through the smoke guide cover and then adsorbed upwards, a specific flowing path is provided for the smoke dust, the adsorption effect is optimized, the smoke suction assembly is prevented from getting close to laser cutting equipment, and the smoke suction assembly is prevented from getting close to the laser cutting equipment. The influence of negative pressure generated when the smoke suction assembly sucks smoke on airflow near the cutting head is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a smoke and dust adsorption device for laser cutting of pine wood boards. Background Art

[0002] Laser cutting is a modern technology that can achieve very precise cutting with minimal error. When complex patterns need to be cut on pine wood, laser cutting is usually used. Although laser cutting has high precision and high efficiency, the high-energy laser beam during cutting will cause the wood to melt and vaporize instantly, generating a large amount of heat and gas. These gases will expand and escape rapidly under high temperature, forming smoke and tiny particles. In order to avoid the impact of smoke on the human body, smoke adsorption will be carried out.

[0003] Currently, there are two main ways to absorb the smoke generated during laser cutting. One is to place the suction port under the cutting platform and perform adsorption when negative pressure is generated. However, when smoke is generated, it usually floats upward first and cannot be sucked away immediately. The second is to set the suction port at the laser cutting head and move synchronously with the movement of the laser cutting head to perform real-time suction. Although the suction effect is good, the airflow direction generated by the suction head is inconsistent with the airflow direction of the original cutting area, and even local vortices may be formed in the cutting area, which may disrupt the originally stable airflow environment and cause uneven energy distribution when the laser interacts with the pine wood board, thereby affecting the cutting accuracy and quality. Based on the above situation, it is necessary to design a pine wood board laser cutting smoke adsorption device to solve the above problems. Utility Model Content

[0004] The utility model provides a smoke adsorption device for laser cutting of pine wood boards, which solves the problem in the prior art that a smoke adsorption mechanism generates negative pressure smoke which affects the cutting airflow.

[0005] The technical problem solved by the present invention is achieved by the following technical solutions:

[0006] A smoke adsorption device for laser cutting of pine wood boards, comprising a cutting platform, a moving mechanism being provided on the cutting platform, a laser cutting device being provided on the moving mechanism, a smoking assembly and a smoke guide hood, wherein the smoking assembly is provided on the moving mechanism and moves synchronously with the moving mechanism, and is used to adsorb smoke generated during laser cutting, the smoking assembly comprising an adsorption mechanism and a smoking nozzle connected to the output end of the adsorption mechanism, the smoke guide hood being provided at the periphery of the laser cutting device, and the cross-section of the smoke guide hood being a closed structure, and is used to guide smoke generated during laser cutting to the input end of the smoking assembly, the smoke guide hood comprising a guide portion and a smoke receiving portion connected to the guide portion, the smoking nozzle being provided inside the smoke receiving portion, and the cross-sectional area of ​​the guide portion gradually decreasing from bottom to top.

[0007] Preferably, the bottom end of the guide portion is slidably connected to a closing cover, and the closing cover can slide downward under the action of its own gravity to contact the cutting platform.

[0008] Preferably, a cavity is provided inside the smoke guide hood, and the interior of the cavity is filled with heat insulation material.

[0009] Preferably, the output end of the adsorption mechanism is connected to an annular distributor, a plurality of adsorption tubes are equidistantly provided on the circumference of the annular distributor, and the input ends of the plurality of adsorption tubes are all connected to the smoking mouthpiece.

[0010] Preferably, the smoke guide cover further includes a closing portion connected to the top of the smoke receiving portion, and the cross-sectional area of ​​the closing portion gradually decreases from bottom to top.

[0011] Preferably, a connecting ring is provided on the inner wall of the smoke guide hood, and the connecting ring is rotatably connected to the laser cutting equipment.

[0012] The beneficial effects of the utility model are as follows: the smoke generated during laser cutting is guided upward by the smoke guide hood and then adsorbed from above, providing a specific flow path for the smoke, optimizing the adsorption effect, and avoiding the smoking component from being close to the laser cutting equipment, reducing the influence of the negative pressure generated by the smoking component when smoking on the airflow near the cutting head, ensuring that the laser cutting work can operate normally without being disturbed by the smoking component. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation scheme of the present invention or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 This is an isometric structural diagram provided by the utility model;

[0015] Figure 2 A schematic cross-sectional view of a local structure provided by the utility model;

[0016] Figure 3 A schematic diagram of the three-dimensional structure of the smoke guide hood provided by the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the smoke guide hood in the present utility model.

[0018] In the figure, 1. cutting platform; 11. moving mechanism; 12. laser cutting equipment; 2. adsorption mechanism; 21. smoking nozzle; 3. smoke guide hood; 31. diversion part; 32. smoke receiving part; 33. closing hood; 34. closing part; 4. cavity; 5. annular distributor; 51. adsorption tube; 6. connecting ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0020] Reference Figure 1-Figure 4 As shown, a pine wood board laser cutting smoke adsorption device includes a cutting platform 1, a moving mechanism 11 is provided on the cutting platform 1, and the moving mechanism 11 can correctly and accurately realize the movement in the X, Y, and Z axis directions according to the control program. A laser cutting device 12 is provided on the moving mechanism 11, and the laser cutting device 12 includes a laser generator, a refractive reflector for directing the laser in the required direction, and a telescopic member for driving the cutting to adjust up and down, etc. This technology is prior art, and those skilled in the art should be aware that this embodiment does not protect the moving mechanism 11 and the laser cutting device 12, so their specific connection relationship and structure are not described in detail;

[0021] Specifically, it also includes a smoking component and a smoke guide hood 3. The smoking component is arranged on the moving mechanism 11 and moves synchronously with the moving mechanism 11, and is used to absorb the smoke generated during laser cutting. The smoking component includes an adsorption mechanism 2 and a smoking nozzle 21 connected to the output end of the adsorption mechanism 2. The adsorption mechanism 2 can be a vacuum cleaner with a filtering structure inside, etc., which can generate suction. When the laser cutting equipment 12 moves with the moving mechanism 11 to perform laser cutting on the pine wood board, the moving mechanism 11 will drive the smoking component to move synchronously, and synchronously absorb the smoke generated during laser cutting through the smoking nozzle 21 to prevent the smoke from floating around and affecting the surrounding environment. In order to prevent the negative pressure generated when the smoking component absorbs the smoke from disturbing the airflow near the laser cutting head and affecting the cutting accuracy, the smoke guide hood 3 is arranged on the periphery of the laser cutting equipment 12 to guide the smoke.

[0022] Reference Figure 3As shown, further, the cross section of the smoke guide hood 3 is a closed structure, which can guide the smoke and dust around the periphery of the laser cutting head in all directions, and is used to guide the smoke and dust generated during laser cutting to the input end of the smoking component. The smoke guide hood 3 includes a guide portion 31 and a smoke receiving portion 32 connected to the guide portion 31. The smoking nozzle 21 is arranged inside the smoke receiving portion 32. The cross section of the smoke guide hood 3 can be circular, elliptical, polygonal, etc., and the smoking nozzle 21 can have the same cross-sectional shape as the smoke guide hood 3. Preferably, a circular cross-sectional structure is adopted to ensure that the adsorption force on the smoke and dust is consistent in different directions, no matter which direction the smoke and dust drifts. The smoking nozzles 21 can all perform adsorption with the same efficiency, avoiding the situation of insufficient local adsorption due to distance differences, and the cross-sectional area of ​​the guide part 31 gradually decreases from bottom to top. While guiding the smoke, the smoke can be gradually gathered, which is convenient for the suction nozzle in the smoke receiving part 32 to adsorb. The smoke is intercepted and guided by the smoke guide hood 3, so that the smoke can only move upward, and through the principle of the smoking component near the cutting working surface of the cutting head, when the smoke moves to the top of the cutting head, it is adsorbed by the smoking nozzle 21, thereby avoiding the negative pressure generated by the smoking nozzle 21 to disturb the airflow during cutting, thereby improving the cutting accuracy.

[0023] Among them, the bottom end of the guide part 31 is slidably connected to a closing cover 33, and the closing cover 33 can slide downward under the action of its own gravity and contact the cutting platform 1. When the pine board is placed on the cutting platform 1, the bottom end of the closing cover 33 will come into contact with the upper surface of the pine board, thereby sealing the bottom end of the smoke guide cover 3 and reducing the leakage of smoke and dust from the bottom. It can also be used when cutting boards of different thicknesses. The closing cover 33 can be made of flexible materials such as rubber sheets.

[0024] Reference Figure 4 As shown, further, since a large amount of heat is generated during the laser cutting process, if the smoke guide hood 3 is in direct contact with high-temperature smoke for a long time, it is easy to cause its own structure to deform and damage the guide. Therefore, a cavity 4 is provided inside the smoke hood, and the interior of the cavity 4 is filled with heat-insulating material. The heat-insulating material can be made of transparent aerogel and other materials. The smoke guide hood 3 can also be made of transparent material, which does not affect the observation of the cutting work from the outside, and can also protect the smoke guide hood 3. At the same time, it can also prevent outsiders from accidentally touching the smoke guide hood 3 and causing burns.

[0025] Furthermore, the smoke guide hood 3 also includes a closing portion 34 connected to the top of the smoke receiving portion 32, and the cross-sectional area of ​​the closing portion 34 gradually decreases from bottom to top, which can intercept the smoke and dust that is not completely adsorbed by the smoking nozzle 21, so that the smoke and dust move downward and drift into the negative pressure area of ​​the smoking nozzle 21 for adsorption again, thereby reducing the possibility of smoke and dust diffusion and leakage.

[0026] Among them, the output end of the adsorption mechanism 2 is connected to the annular distributor 5, and a plurality of adsorption tubes 51 are equidistantly provided on the circumference of the annular distributor 5, and the input ends of the plurality of adsorption tubes 51 are all connected to the smoking nozzle 21, which can provide uniform adsorption force to the smoking nozzle 21 and reduce the occurrence of insufficient suction due to the smoking nozzle 21 being far away from the input end of the smoking component.

[0027] Among them, a connecting ring 6 is provided on the inner wall of the smoke guide hood 3, which is rotatably connected to the laser cutting equipment 12, can fix the smoke guide hood 3, and rotate when the cutting head rotates to perform cutting operations, and can drive the smoke guide hood 3 to rotate asynchronously.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A pine wood board laser cutting smoke adsorption device, comprising a cutting platform (1), a moving mechanism (11) provided on the cutting platform (1), a laser cutting device (12) provided on the moving mechanism (11), characterized in that: Also includes; A smoking assembly, the smoking assembly being arranged on the moving mechanism (11) and moving synchronously with the moving mechanism (11), and being used for absorbing smoke generated during laser cutting, the smoking assembly comprising an adsorption mechanism (2) and a smoking nozzle (21) connected to an output end of the adsorption mechanism (2); A smoke guide hood (3) is provided on the periphery of the laser cutting device (12), and the cross section of the smoke guide hood (3) is a closed structure, and is used to guide smoke generated during laser cutting to the input end of the smoking component. The smoke guide hood (3) includes a guide portion (31) and a smoke receiving portion (32) connected to the guide portion (31), the smoking nozzle (21) is provided inside the smoke receiving portion (32), and the cross-sectional area of ​​the guide portion (31) gradually decreases from bottom to top.

2. The smoke adsorption device for laser cutting of pine wood boards according to claim 1 is characterized in that: The bottom end of the guide portion (31) is slidably connected to a closing cover (33), and the closing cover (33) can slide downward under the action of its own gravity to contact the cutting platform (1).

3. The smoke adsorption device for laser cutting of pine wood boards according to claim 1 is characterized in that: A cavity (4) is provided inside the smoke guide cover (3), and the interior of the cavity (4) is filled with heat insulation material.

4. The smoke adsorption device for laser cutting of pine wood boards according to claim 1 is characterized in that: The output end of the adsorption mechanism (2) is connected to an annular distributor (5), a plurality of adsorption tubes (51) are equidistantly arranged on the circumference of the annular distributor (5), and the input ends of the plurality of adsorption tubes (51) are all connected to the smoking nozzle (21).

5. The smoke adsorption device for laser cutting of pine wood boards according to claim 1 is characterized in that: The smoke guide cover (3) further comprises a closing portion (34) connected to the top end of the smoke receiving portion (32), and the cross-sectional area of ​​the closing portion (34) gradually decreases from bottom to top.

6. The smoke adsorption device for laser cutting of pine wood boards according to claim 1, characterized in that: A connecting ring (6) is provided on the inner wall of the smoke guide hood (3), and the connecting ring (6) is rotatably connected to the laser cutting equipment (12).

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