Dust removal device of laser cutting machine

Abstract

The utility model provides a dust removal device for a laser cutting machine, which belongs to the field of laser cutting machines and comprises a dust removal base, a dust removal channel is arranged in the dust removal base and communicated with a dust remover, and a ventilation opening penetrates through the dust removal channel and the outer surface of the dust removal base. An air suction trolley is horizontally and slidably mounted on one surface of the dust removal base provided with the ventilation opening; a communicating channel is arranged in the air suction trolley, an air inlet of the communicating channel communicates with a rigid air suction pipe, and the air inlet end of the rigid air suction pipe is installed on a cross beam of the laser cutting machine. An air outlet of the communication channel faces the ventilation opening and can communicate with the ventilation opening; a first sealing cover and a second sealing cover are arranged on the two sides of the air suction trolley respectively and can cover all the ventilation openings in the outer side of the air suction trolley. The beneficial effects of the utility model lie in that the device has the effect of high efficiency and is basically maintenance-free.

Description

Technical Field

[0001] The utility model belongs to the field of laser cutting machines, and in particular relates to a dust removal device for a laser cutting machine. Background Art

[0002] In modern industrial processing, laser cutting machines, owing to their high precision and efficiency, are widely used in industries such as metal processing, electronics manufacturing, and automotive parts production. However, during the laser cutting process, high temperatures cause the material to rapidly melt and vaporize, generating large amounts of pollutants including metal dust, smoke particles, and hazardous chemicals. These pollutants not only deposit on the cutting equipment's optical components and transmission parts, reducing laser focusing accuracy and causing frequent equipment failures, but also pollute the working environment, seriously threatening the respiratory health of operators. Long-term exposure may even lead to occupational diseases such as pneumoconiosis. Therefore, most laser cutting machines on the market are equipped with dust removal systems.

[0003] To achieve efficient dust removal, existing large-format laser cutting machines often integrate dust removal systems into the machine bed. Specifically, these systems typically feature multiple ventilation windows on either side of the machine bed, with each window equipped with a corresponding zoned dust removal system consisting of pipes and valves. During the cutting process, the valves in each ventilation window are controlled to absorb the dust generated, enhancing dust removal effectiveness.

[0004] However, in practice, the numerous ventilation windows, pipes, and valves not only increase system complexity and make installation and commissioning more difficult, but also complicate subsequent maintenance tasks like clearing pipe blockages and troubleshooting valve failures, reducing equipment repair efficiency. Furthermore, the dispersed and independent distribution of ventilation windows can easily lead to uneven airflow, making it difficult to create a stable and sufficiently strong negative pressure field in the cutting area. This prevents some dust from being absorbed in time, causing it to escape and spread. Utility Model Content

[0005] The purpose of this utility model is to propose and design a dust removal device for a laser cutting machine in response to the problems existing in the dust removal system used in existing large-format laser cutting machines during actual operation, such as complex structure, high failure rate, difficult maintenance, and poor dust removal effect. The dust removal device can overcome the above problems and has high efficiency and basically maintenance-free effect.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: a dust removal device for a laser cutting machine, which includes a dust removal base placed on the outside of the bed of the laser cutting machine, a dust removal channel is opened inside the dust removal base, the dust removal channel is connected to a connecting pipe through a connecting hole, the connecting pipe is connected to a dust collector, and a ventilation opening is passed through the dust removal channel and the outer surface of the dust removal base; a suction trolley is horizontally slidably installed on the side of the dust removal base where the ventilation opening is provided, and the sliding direction of the suction trolley and the length direction of the dust removal channel are parallel to the sliding direction of the beam of the laser cutting machine; a connecting channel is provided inside the suction trolley, and the air inlet of the connecting channel is connected to a rigid suction pipe, and the air inlet end of the rigid suction pipe is installed at the beam of the laser cutting machine; the air outlet of the connecting channel faces the ventilation opening and can be connected to the ventilation opening; a sealing cover 1 and a sealing cover 2 are respectively provided on both sides of the suction trolley, the sealing cover 1 can cover all the ventilation openings located in the front side of the suction trolley, and the sealing cover 2 can cover all the ventilation openings located in the rear side of the suction trolley.

[0007] At this time, during the operation of the laser cutting machine, since the utility model installs the rigid suction pipe of the dust removal device on the crossbeam of the laser cutting machine, during the movement of the crossbeam of the laser cutting machine, the rigid suction pipe and the suction trolley can be driven by the crossbeam of the laser cutting machine to move synchronously, and perform suction and dust removal operations in real time, so as to achieve the effect of smoking from the source, so that the suction efficiency can reach more than 90%; at the same time, based on the special ventilation structure of the utility model, that is, based on the utility model, a longer dust removal channel is directly set on the dust removal base, and the ventilation ports on both sides of the suction trolley are directly sealed through the sealing cover 1 and the sealing cover 2, and the air outlet of the connecting channel in the suction trolley is connected to the dust removal channel through the ventilation port arranged opposite to the suction trolley, which can not only ensure that the negative pressure generated by the dust collector can be transmitted to the rigid suction pipe, but also eliminate the large number of valves and complex pipeline arrangements of the frame-trough type partitioned dust removal system, so that the whole has the characteristics of simple structure, convenient operation, low failure rate and basically maintenance-free.

[0008] Furthermore, the side of the air suction trolley provided with the air outlet of the communication channel is fitted with the side of the dust removal base provided with the vent to ensure the overall sealing effect and avoid air leakage.

[0009] Furthermore, the number of ventilation holes is at least two, the interval distance between any two adjacent ventilation holes is smaller than the width of the air outlet of the connecting channel of the suction trolley, and they are evenly arranged on the dust removal base to ensure that when the suction trolley is in any position, the air outlet of the connecting channel provided therein can be connected to the corresponding one or two ventilation holes.

[0010] Furthermore, the number of the ventilation opening is one, and the length of the ventilation opening is greater than or equal to the stroke of the beam on the laser cutting machine, so as to ensure that the connecting channel of the suction trolley can always be connected with the dust removal channel during the movement of the beam.

[0011] Furthermore, the two ends of the dust removal base are respectively rotatably installed with a rotating shaft 1 and a rotating shaft 2, the sealing cover 1 includes a sealing belt 1, and the sealing cover 2 includes a sealing belt 2, the width of the sealing belt 1 and the width of the sealing belt 2 are both greater than the width of the vent, one end of the sealing belt 1 is connected to the front end of the suction trolley, the other end of the sealing belt 1 is connected to the front end of the middle sealing belt after bypassing the rotating shaft 1, one end of the sealing belt 2 is connected to the rear end of the suction trolley, and the other end of the sealing belt 2 is connected to the rear end of the middle sealing belt after bypassing the rotating shaft 2, and the connection hole of the dust removal channel is located on the side of the middle sealing belt close to the vent to ensure that the gas can flow out smoothly from the connection hole.

[0012] Furthermore, the sealing belt 1, the sealing belt 2 and the middle sealing belt are an integrated part.

[0013] Furthermore, the outer cover of the crossbeam of the laser cutting machine is provided with a sheet metal cover, the inner top wall of the sheet metal cover is provided with a top suction cover, the air inlet end of the rigid suction pipe is connected to the air outlet end of the top suction cover, and can perform smoking and dust removal operations in real time.

[0014] Furthermore, the vent is arranged on the top surface of the dust removal base, the suction trolley is slidably installed on the top surface of the dust removal base, and the sealing cover 1 and the sealing cover 2 are tightly fitted on the dust removal base by their own gravity.

[0015] Furthermore, sliding guide mechanisms are provided on both sides of the dust removal base, and the sliding guide mechanisms are used to guide the sliding of the sealing cover 1, the sealing cover 2 and the suction trolley to avoid large angle deviations during movement.

[0016] Furthermore, the sliding guide mechanism includes a mounting bracket, which is mounted on the surface of the dust removal base through fasteners. A guide plate is provided at the upper end of the mounting bracket, and the upper part of the guide plate is located above the dust removal base. The front and rear ends of the upper part of the guide plate are bent in the direction away from the vent, thereby forming a trapezoidal groove structure to guide the sliding of sealing cover 1, sealing cover 2 and the suction trolley.

[0017] It can be seen from the above technical solutions that the utility model has the following advantages: when the large-format laser cutting machine is applied with the utility model, on the one hand, during the movement of the beam of the laser cutting machine, the rigid suction pipe connected to the beam and the suction trolley can be used to drive the suction trolley to move synchronously with it, and smoke and dust removal operations can be performed in real time during the movement, so as to achieve the effect of smoking from the source, so that the smoking efficiency can reach more than 90%; at the same time, it can also save the exhaust volume of the dust removal device; on the other hand, it can use the special ventilation structure adopted by the utility model to ensure that the negative pressure generated by the dust collector can be transmitted to the rigid suction pipe, and can also eliminate a large number of valves and complex pipeline arrangements of the frame-trough type partitioned dust removal system, so that the whole has the characteristics of simple structure, convenient operation, low failure rate, and basically maintenance-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of a specific embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the dust removal base in the utility model;

[0021] Figure 3 It is a structural diagram of the sliding guide mechanism in the utility model.

[0022] In the figure: 1. Bed; 2. Sheet metal cover; 3. Top suction cover; 4. Rigid suction pipe; 5. Sealing cover 2; 6. Suction trolley; 7. Dust removal base; 8. Sealing cover 1; 9. Sliding guide mechanism; 10. Dust collector; 11. Connecting hole; 12. Connecting channel; 13. Air outlet; 14. Air inlet; 15. Ventilation port; 16. Rotating shaft 2; 17. Middle sealing belt; 18. Rotating shaft 1; 19. Dust removal channel; 20. Mounting bracket; 21. Guide plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0024] like Figure 1 As shown, the utility model provides a dust removal device for a laser cutting machine, which is particularly suitable for a large-format laser cutting machine, and the laser cutting machine to which it is applicable needs to have a horizontally arranged bed 1, a beam mounted on the bed 1 for horizontal sliding along the front-back direction, a Z-axis assembly mounted on the beam for horizontal sliding along the left-right direction, a laser head assembly mounted on the Z-axis assembly for vertical sliding, a sheet metal cover 2 arranged on the outside of the beam and other components.

[0025] Specifically in this embodiment, Figure 1 、 Figure 2 、 Figure 3 As shown, the dust removal device for a laser cutting machine provided by the present invention includes a dust removal base 7, which is horizontally arranged on the outside of a side of the bed 1 where a guide rail for cooperating with a crossbeam is provided. The length of the dust removal base 7 should be substantially the same as the length of the bed 1. The bottom of the dust removal base 7 is provided with a foot, and a dust removal channel 19 is provided inside the dust removal base 7. The length direction of the dust removal channel 19 is parallel to the sliding direction of the crossbeam, and a connecting hole 11 is opened at one end of the dust removal channel 19, and a connecting pipe is connected through the connecting hole 11, and the connecting pipe is connected to the dust collector 10.

[0026] A vent 15 is provided between the dust removal channel 19 and the upper surface of the dust removal base 7, and the vent 15 can be a long hole structure directly opened on the upper surface of the dust removal base 7 with a length that is compatible with the stroke of the upper beam of the laser cutting machine, or a structure in which a plurality of small holes are evenly opened on the upper surface of the dust removal base 7. When the long hole structure is adopted, it is necessary to ensure that the length of the vent 15 is greater than or equal to the stroke of the upper beam of the laser cutting machine, so as to ensure that the dust removal channel 19 can always be connected to the connecting channel 12 of the suction trolley 6 described below during the movement of the beam. When the small hole structure is adopted, it is necessary to ensure that the distance between any two adjacent vents 15 is less than the width of the air outlet 13 of the connecting channel 12 provided at the suction trolley 6 described below, so as to ensure that when the suction trolley 6 is moved to any position, the air outlet 13 of the connecting channel 12 provided therein can be connected to the corresponding one or two vents 15.

[0027] A suction trolley 6 is also mounted horizontally and slidably above the dust removal base 7. The trolley 6 slides parallel to the direction of movement of the laser cutting machine's beam, and a connecting passage 12 is provided within the trolley 6. The air inlet 14 of the connecting passage 12 is connected to a rigid suction pipe 4, the pipe body of which is fixedly mounted on the sheet metal cover 2, located outside the beam. The air inlet end of the rigid suction pipe 4 is connected to the air outlet end of the top suction hood 3, located at the top of the sheet metal cover 2, and is capable of transmitting negative pressure to the top suction hood 3 for real-time smoke and dust removal. The air outlet 13 of the connecting passage 12 faces the vent 15 and is always connected to the dust removal passage 19 through the corresponding vent 15. Furthermore, the side of the suction trolley 6 where the air outlet 13 of the connecting passage 12 is located mates with the side of the dust removal base 7 where the vent 15 is located, ensuring a sealed seal.

[0028] At the same time, the present invention also provides a sealing cover 1 8 and a sealing cover 2 5 on the front and rear sides of the suction trolley 6, respectively, and the sealing cover 1 8 can cover all the vents 15 on the front side of the suction trolley 6, and the sealing cover 2 5 can cover all the vents 15 on the rear side of the suction trolley 6, so as to ensure the sealing of the entire dust removal channel 19. Figure 2 As shown, the utility model has a rotating shaft 18 and a rotating shaft 2 16 rotatably mounted on the front and rear ends of the dust removal base 7, and an intermediate sealing belt 17 is provided in the dust removal channel 19. At this time, the sealing cover 1 8 includes a sealing belt 1, and the sealing cover 2 5 includes a sealing belt 2, and the width of the sealing belt 1 and the width of the sealing belt 2 are both greater than the width of the vent 15. One end of the sealing belt 1 is connected to the front end of the suction trolley 6, and the other end of the sealing belt 1 is connected to the front end of the intermediate sealing belt 17 after passing through the rotating shaft 18. One end of the sealing belt 2 is connected to the rear end of the suction trolley 6, and the other end of the sealing belt 2 is connected to the rear end of the intermediate sealing belt 17 after passing through the rotating shaft 2 16. In addition, the sealing belts 1, 2, and 17 are preferably made of a single piece. The connection hole 11 of the dust removal channel 19 is located on the side of the intermediate sealing belt 17 near the vent 15, that is, the connection hole 11 of the dust removal channel 19 is located above the intermediate sealing belt 17, and the intermediate sealing belt 17 is preferably directly arranged in the gap between the dust removal base 7 and the ground. In addition, in addition to the above structure, the sealing cover 1 8 and the sealing cover 2 5 can also choose a telescopic folding structure such as a common accordion cover on the market.

[0029] At this time, during the operation of the laser cutting machine, that is, during the movement of the beam of the laser cutting machine, the utility model can drive the rigid suction pipe 4 to move synchronously through the beam and the sheet metal cover 2 arranged on the outside of the beam, and drive the suction trolley 6 to move synchronously through the rigid suction pipe 4, and make the connecting channel 12 of the suction trolley 6 always connected to the dust removal channel 19. In this way, the negative pressure generated at the dust collector 10 will be transmitted to the top suction cover 3 above the beam through the dust removal channel 19, the connecting channel 12, and the rigid suction pipe 4, and the smoke and dust removal operation will be carried out in real time to achieve the effect of smoking at the source, so that the smoking efficiency can reach more than 90%. At the same time, during the movement of the suction trolley 6, the utility model can directly seal the vent 15 located on the outside of the suction trolley 6 through the sealing belt 1 and the sealing belt 2 connected on both sides of the suction trolley 6 to avoid air leakage and other phenomena.

[0030] In addition, as a preferred embodiment, the present invention can also be provided with sliding guide mechanisms 9 on both sides of the dust removal base 7. Figure 3 As shown, the sliding guide mechanism 9 includes a mounting bracket 20, which is mounted on the left and right sides of the dust removal base 7 via fasteners. A guide plate 21 is provided at the upper end of the mounting bracket 20. The upper portion of the guide plate 21 is located above the dust removal base 7, and the front and rear ends of the upper portion of the guide plate 21 are bent away from the vent 15, thereby forming a trapezoidal groove structure with an outward opening, so as to guide the sliding of the sealing cover 1 8, the sealing cover 2 5, and the suction carriage 6, and prevent them from deviating at a large angle during movement.

[0031] Based on this, compared to traditional laser cutting machine dust removal devices, the present invention not only achieves good ventilation and dust removal effects, but also eliminates the numerous valves and complex piping arrangements of frame-trough partitioned dust removal systems, resulting in a simple structure, convenient operation, low failure rate, and virtually maintenance-free operation. Furthermore, the suction trolley 6 in the present invention requires no power, operates smoothly, and is quiet.

[0032] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust removal device for a laser cutting machine, characterized in that: The invention comprises a dust removal base (7) placed outside a bed (1) of a laser cutting machine, a dust removal channel (19) being provided inside the dust removal base (7), the dust removal channel (19) being connected to a connecting pipe through a connecting hole (11), the connecting pipe being connected to a dust collector (10), a vent (15) being passed through the dust removal channel (19) and the outer surface of the dust removal base (7); a suction trolley (6) being horizontally slidably mounted on a side of the dust removal base (7) provided with the vent (15), the sliding direction of the suction trolley (6) and the length direction of the dust removal channel (19) being parallel to the sliding direction of the beam of the laser cutting machine; the suction trolley A connecting passage (12) is provided inside (6), an air inlet (14) of the connecting passage (12) is connected to a rigid air suction pipe (4), and an air inlet end of the rigid air suction pipe (4) is installed at the crossbeam of the laser cutting machine; an air outlet (13) of the connecting passage (12) faces the vent (15) and can be connected to the vent (15); sealing cover 1 (8) and sealing cover 2 (5) are provided on both sides of the air suction trolley (6), respectively, the sealing cover 1 (8) can cover all the vents (15) located on the front side of the air suction trolley (6), and the sealing cover 2 (5) can cover all the vents (15) located on the rear side of the air suction trolley (6).

2. The dust removal device for a laser cutting machine according to claim 1, characterized in that: The side of the air suction trolley (6) provided with the air outlet (13) communicating with the channel (12) is in contact with the side of the dust removal base (7) provided with the vent (15).

3. The dust removal device for a laser cutting machine according to claim 2, characterized in that: The number of the ventilation openings (15) is at least two, and the distance between any two adjacent ventilation openings (15) is smaller than the width of the air outlet (13) of the communication channel (12) of the air suction trolley (6).

4. The dust removal device for a laser cutting machine according to claim 2, characterized in that: The number of the vent (15) is one, and the length of the vent (15) is greater than or equal to the stroke of the upper beam of the laser cutting machine.

5. The dust removal device for a laser cutting machine according to claim 2, characterized in that: The two ends of the dust removal base (7) are rotatably mounted with a rotating shaft 1 (18) and a rotating shaft 2 (16), respectively. The sealing cover 1 (8) includes a sealing belt 1, and the sealing cover 2 (5) includes a sealing belt 2. The width of the sealing belt 1 and the width of the sealing belt 2 are both greater than the width of the vent (15). One end of the sealing belt 1 is connected to the front end of the suction trolley (6), and the other end of the sealing belt 1 is connected to the front end of the middle sealing belt (17) after passing through the rotating shaft 1 (18). One end of the sealing belt 2 is connected to the rear end of the suction trolley (6), and the other end of the sealing belt 2 is connected to the rear end of the middle sealing belt (17) after passing through the rotating shaft 2 (16). The connection hole (11) of the dust removal channel (19) is located on the side of the middle sealing belt (17) close to the vent (15).

6. The dust removal device for a laser cutting machine according to claim 5, characterized in that: Sealing belt one, sealing belt two and middle sealing belt (17) are an integral part.

7. The dust removal device for a laser cutting machine according to any one of claims 1 to 6, characterized in that: The outer cover of the crossbeam of the laser cutting machine is provided with a sheet metal cover (2), the inner top wall of the sheet metal cover (2) is provided with a top suction cover (3), and the air inlet end of the rigid suction pipe (4) is connected to the air outlet end of the top suction cover (3).

8. The dust removal device for a laser cutting machine according to claim 7, characterized in that: The vent (15) is provided on the top surface of the dust removal base (7), and the air suction trolley (6) is slidably mounted on the top surface of the dust removal base (7).

9. The dust removal device for a laser cutting machine according to claim 8, characterized in that: Sliding guide mechanisms (9) are provided on both the left and right sides of the dust removal base (7).

10. The dust removal device for a laser cutting machine according to claim 9, characterized in that: The sliding guide mechanism (9) includes a mounting bracket (20), which is mounted on the surface of the dust removal base (7) through fasteners. A guide plate (21) is provided at the upper end of the mounting bracket (20), and the upper portion of the guide plate (21) is located above the dust removal base (7). The front end and the rear end of the upper portion of the guide plate (21) are bent in a direction away from the vent (15).

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