A laser cutting device for furniture manufacturing

Abstract

This invention discloses a laser cutting device for furniture manufacturing, relating to the field of laser cutting technology. The device includes a main frame, a drive assembly fixedly connected to the top of the main frame, a drive head movably connected to the top of the drive assembly, a laser head fixedly connected to the bottom of the drive head, a cooling mechanism on the outer wall of the laser head, and a fixing mechanism on the top of the main frame. This laser cutting device uses external air supplied into a shield 53, causing the air to flow in a spiral pattern to cool the top of the board being cut. When the laser penetrates the board, the gas flows through the gaps, further cooling the cutting kerf. As cutting continues, the cut portion is continuously cooled, significantly reducing the blackening and carbonization of the board.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for furniture manufacturing. Background Technology

[0002] Laser cutting is now widely used in the processing of various furniture boards. It has extremely high cutting precision, produces smooth and flat cuts, and adopts a non-contact processing method, which does not cause mechanical compression to the board and effectively avoids deformation and damage to solid wood, MDF, ecological board and other boards. At the same time, it can easily complete the cutting of complex shapes such as arcs, irregular contours and hollow carvings.

[0003] Chinese patent application number 202410107260.2 discloses a plate laser cutting device, including a mounting frame; a hydraulic component disposed on the mounting frame and capable of moving along the length and width directions of the mounting frame; and a laser cutting head disposed at the output end of the hydraulic component.

[0004] Existing equipment uses airflow to cool the cut area of ​​furniture boards when using laser cutting equipment to prevent the boards from blackening and carbonizing. However, the airflow generated by the existing equipment can only cool the surface of the board and cannot effectively alleviate the problem of blackening and carbonization of the laser-cut section. Afterwards, too much time needs to be spent polishing the blackened parts of the board, which is not conducive to the rapid manufacturing of furniture. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a laser cutting device for furniture manufacturing boards, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a laser cutting device for furniture manufacturing boards, comprising a main frame, a driving assembly fixedly connected to the top of the main frame, a driving head movably connected to the top of the driving assembly, a laser head fixedly connected to the bottom of the driving head, a cooling mechanism provided on the outer wall of the laser head, and a fixing mechanism provided on the top of the main frame;

[0007] The fixing mechanism includes:

[0008] A support grid is provided, which is located at the top of the main frame and at the bottom of the laser head. The top of the main frame is provided with a limiting structure, which allows the support grid to move only in the vertical direction.

[0009] The cooling mechanism includes:

[0010] The fan is fixedly connected to the top of the main frame;

[0011] A shielding cover, which is fixedly connected to the outer wall of the main frame;

[0012] A connecting pipe, one end of which is fixedly connected to a fan, and the other end of which is fixedly connected to a shield.

[0013] Preferably, a guide screw is fixedly connected to the inner wall of the shield, and a connecting pipe is fixedly connected to the outer wall of the shield.

[0014] Preferably, a limiting plate is fixedly connected to the outer wall of the shield, an airbag is fixedly connected to the bottom of the limiting plate on the outer wall of the shield, and an opening is provided inside the shield at the corresponding position of the airbag.

[0015] Preferably, a pressure relief valve is fixedly connected to the top of the connecting pipe, and a directional pipe is fixedly connected to the top of the pressure relief valve.

[0016] Preferably, a collection box is movably connected to the outer wall of the steering tube via a thread, and a barrier net is provided on the side of the collection box away from the steering tube.

[0017] Preferably, the top of the support net platform is fixedly connected with several limiting protrusions, the bottom of the support net platform is provided with a connecting cylinder, the bottom of the connecting cylinder is fixedly connected with a collecting cylinder by bolts, a filter screen is fixedly connected inside the collecting cylinder, and a wind turbine is fixedly connected inside the collecting cylinder at the bottom of the filter screen.

[0018] Preferably, the bottom of the support net platform is provided with a guide rail, and the bottom of the support net platform is movably connected to a sliding rail through the guide rail. Both ends of the sliding rail are fixedly connected with limiting position links. Each limiting position link is fixedly connected with a pushing column, and the pushing column is fixedly connected to the corresponding position of the driving component. The outer wall of the sliding rail is movably connected with a driving block, and the driving block is fixedly connected to the connecting cylinder.

[0019] Preferably, a cam is movably connected to the top of the main frame at the bottom of the support platform, and a servo motor is fixedly connected to the top of the main frame, with the output shaft of the servo motor fixedly connected to the cam.

[0020] This invention provides a laser cutting device for wood panels used in furniture manufacturing. It offers the following advantages:

[0021] 1. This laser cutting device for furniture manufacturing uses external air to enter the shield 53, causing the air to flow in a spiral pattern to cool the top of the cutting board. When the laser penetrates the board, the gas flows through the gap, thereby cooling the cutting gap. As the cutting progresses, the cutting part can be continuously cooled, which can greatly reduce the blackening and carbonization of the board and improve the efficiency of furniture manufacturing.

[0022] 2. This laser cutting device for furniture manufacturing uses airflow to blow the debris generated by laser cutting towards a rotating collection box. The collection box can be removed from the deflector tube, making it easier to clean the impurities accumulated inside. This facilitates the collection and cleaning of impurities generated during cutting, reduces the steps involved in waste disposal during processing, and helps improve the efficiency of furniture manufacturing.

[0023] 3. The laser cutting device for furniture manufacturing uses a wind turbine to push the air at the bottom of the board downwards, causing the board to press against the limiting protrusions, thereby fixing the board and improving the fixing speed of the board during the cutting process, which is beneficial to improving the efficiency of furniture manufacturing.

[0024] 4. This laser cutting device for furniture manufacturing penetrates the board material through laser cutting, allowing airflow to quickly pass through the cut surface of the board material. This blows the debris from the laser-cut board material into the collection cylinder, where a filter screen collects the debris, reducing waste processing steps and improving the efficiency of furniture manufacturing.

[0025] 5. The laser cutting device for furniture manufacturing can quickly reverse the rotation of a cam driven by a servo motor after cutting. The cam impacts the support grid, causing the cut template at the top to vibrate. This weakens the bond between the cut wood and the board, making it easier to separate the cut wood. This allows the cut board to quickly enter the next processing step, improving the efficiency of furniture manufacturing. Attached Figure Description

[0026] Figure 1 This is a front-view stereoscopic structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention viewed from below;

[0028] Figure 3 This is a schematic cross-sectional view of the shielding structure of the present invention;

[0029] Figure 4 for Figure 1 Enlarged structural diagram of section A in the middle;

[0030] Figure 5 for Figure 3 Enlarged structural diagram of section E in the middle;

[0031] Figure 6 for Figure 1 Enlarged structural diagram of section B;

[0032] Figure 7 for Figure 1 Enlarged structural diagram of section C;

[0033] Figure 8 for Figure 2 Enlarged structural diagram of section D in the middle;

[0034] Figure 9 This is a cross-sectional view of the connecting cylinder structure of the present invention.

[0035] In the diagram: 1. Main frame; 2. Drive assembly; 3. Drive head; 4. Laser head; 5. Cooling mechanism; 51. Fan; 52. Connecting pipe; 53. Shielding cover; 54. Guide spiral; 55. Limiting plate; 56. Airbag; 57. Connecting pipe; 58. Pressure relief valve; 59. Diverting pipe; 510. Collection box; 511. Barrier net; 6. Fixing mechanism; 61. Supporting mesh platform; 62. Limiting protrusion; 63. Sliding rail; 64. Limiting position linkage; 65. Push column; 66. Drive block; 67. Connecting cylinder; 68. Collection cylinder; 69. Filter screen; 610. Wind turbine; 611. Cam; 612. Servo motor. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0038] Example 1: Please refer to Figure 1-5 The present invention provides a technical solution: a laser cutting device for wood panels for furniture manufacturing, comprising a main frame 1, a drive assembly 2 fixedly connected to the top of the main frame 1, a drive head 3 movably connected to the top of the drive assembly 2, a laser head 4 fixedly connected to the bottom of the drive head 3, a cooling mechanism 5 provided on the outer wall of the laser head 4, and a fixing mechanism 6 provided on the top of the main frame 1.

[0039] Fixed mechanism 6 includes:

[0040] The support grid 61 is located at the top of the main frame 1 and at the bottom of the laser head 4. The top of the main frame 1 is equipped with a limiting structure, which allows the support grid 61 to move only in the vertical direction on the top of the main frame 1.

[0041] Cooling mechanism 5 includes:

[0042] Fan 51 is fixedly connected to the top of the main frame 1;

[0043] The shield 53 is fixedly connected to the outer wall of the main frame 1;

[0044] The connecting pipe 52 has one end fixedly connected to the fan 51 and the other end fixedly connected to the shield 53.

[0045] The plate is placed on top of the support mesh platform 61, and then the support mesh platform 61 is raised by the fixing mechanism 6 so that the top of the plate is attached to the bottom of the shield 53. Then the laser head 4 cuts the plate with a laser. At the same time, the drive component 2 can drive the drive head 3 to continuously cut the plate on top of the support mesh platform 61.

[0046] A guide screw 54 is fixedly connected to the inner wall of the shield 53, and a connecting pipe 57 is fixedly connected to the outer wall of the shield 53.

[0047] While the board is being cut, the fan 51 continuously sends external air into the shield 53 through the connecting pipe 52. The air pressure inside the shield 53 gradually increases, causing the gas inside the shield 53 to be discharged from the shield 53 through the connecting pipe 57. When the air enters the shield 53 through the connecting pipe 52, the guide spiral 54 can guide the flow, making the air inside the shield 53 flow in a spiral. The flowing air can cool down the cut board.

[0048] A limiting plate 55 is fixedly connected to the outer wall of the shield 53, and an airbag 56 is fixedly connected to the bottom of the limiting plate 55 on the outer wall of the shield 53. An opening is provided inside the shield 53 at the corresponding position of the airbag 56.

[0049] A pressure relief valve 58 is fixedly connected to the top of the connecting pipe 57, and a diverting pipe 59 is fixedly connected to the top of the pressure relief valve 58.

[0050] When the air pressure inside the shield 53 is too high, it will push open the valve core inside the steering pipe 59, allowing the air inside the shield 53 to be discharged through the connecting pipe 57. During the process of gas being injected into the shield 53, air will enter the airbag 56 through the opening, causing the airbag 56 to inflate. The inflated airbag 56 can fill the gap between the plate and the fan 51, and can prevent air leakage, thus preventing the gas pressure inside the shield 53 from being too low.

[0051] When the laser penetrates the plate, the air inside the shield 53 will quickly flow out through the gap penetrated by the laser because the gas pressure inside the shield 53 is always greater than the outside air pressure. This achieves the effect of cooling the cutting gap and continuously cooling the cutting part as the cutting progresses.

[0052] A collection box 510 is movably connected to the outer wall of the steering pipe 59 by a thread, and a barrier net 511 is provided on the side of the collection box 510 away from the steering pipe 59.

[0053] When exhaust is vented to the outside through connecting pipe 57, the airflow discharged from the shield 53 will enter the collection box 510 through the deflector pipe 59, and finally be discharged to the outside through the barrier net 511. When the airflow passes through the barrier net 511, it will be filtered by the barrier net 511, and the cutting debris will be intercepted inside the barrier net 511. Later, the collection box 510 can be removed from the deflector pipe 59 by rotating the collection box 510 and the thread action, which makes it easy to clean the impurities accumulated inside the collection box 510.

[0054] Example 2: Please refer to Figure 1-9 Based on Embodiment 1, the present invention provides a technical solution:

[0055] Several limiting protrusions 62 are fixedly connected to the top of the support net platform 61. A connecting cylinder 67 is provided at the bottom of the support net platform 61. A collecting cylinder 68 is fixedly connected to the bottom of the connecting cylinder 67 by bolts. A filter screen 69 is fixedly connected inside the collecting cylinder 68. A wind turbine 610 is fixedly connected to the bottom of the filter screen 69 inside the collecting cylinder 68.

[0056] After placing the board on top of the support mesh platform 61, move the connecting cylinder 67 to the bottom of the corresponding board and start the wind turbine 610. The wind turbine 610 will push the air at the bottom of the board downward, making the pressure at the bottom of the board negative, and the air at the top of the board will exert downward pressure on the board, thus pressing the board down onto the limiting protrusion 62, thereby fixing the board. After cutting is completed, the wind turbine 610 can be turned off, which can easily fix and release the board.

[0057] When the laser penetrates the plate, the laser-cut part of the plate will connect the top and bottom of the plate. The air pressure at the top of the shield 53 will push the air downward through the gap, so that the airflow will quickly pass through the cut surface of the plate. While cooling the cut surface, it will blow the debris generated by the laser cutting of the plate into the collection cylinder 68 and be intercepted by the filter screen 69 on the collection cylinder 68, thus achieving the collection function.

[0058] The collection cylinder 68 can be removed from the bottom of the connecting cylinder 67 by unscrewing the bolts connecting the connecting cylinder 67 and the collection cylinder 68, which facilitates the rapid processing of impurities collected at the top of the filter screen 69.

[0059] The bottom of the support platform 61 is provided with a guide rail, and the bottom of the support platform 61 is movably connected to a sliding rail 63 through the guide rail. Both ends of the sliding rail 63 are fixedly connected to a limiting position link 64. Inside the limiting position link 64, a pushing column 65 is fixedly connected, and the pushing column 65 is fixedly connected to the corresponding position of the drive component 2. The outer wall of the sliding rail 63 is movably connected to a drive block 66, and the drive block 66 is fixedly connected to the connecting cylinder 67.

[0060] The drive assembly 2 moves in the drive head 3 and can drive the sliding rail 63 to move along the track at the bottom of the main frame 1 by pushing the column 65 to pull the limiting position link 64. When cutting, the drive block 66 drives the connecting cylinder 67 to move to the cutting position of the plate.

[0061] The top of the main frame 1 is movably connected to the bottom of the support platform 61 with a cam 611, and the top of the main frame 1 is fixedly connected to a servo motor 612, and the output shaft of the servo motor 612 is fixedly connected to the cam 611.

[0062] After the board to be cut is placed on top of the support grid 61, the cam 611 can be driven to rotate by the servo motor 612. The rotating cam 611 lifts the support grid 61 upward through the protrusion, raising the board to a suitable position. The laser head 4 then cuts the board. After the cutting is completed, the cam 611 can be driven to rotate rapidly in the opposite direction by the servo motor 612. During this process, the bottom of the support grid 61 will quickly lose support, and then the support grid 61 will fall onto the cam 611, causing the top of the support grid 61 to vibrate. This vibration can shake the cut wood, weaken the bonding strength between the cut wood and the board, and make it easier to separate the cut wood after the board is removed.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A laser cutting device for furniture manufacturing, comprising a main frame (1), characterized in that: The main frame (1) is fixedly connected to the top of the drive assembly (2), the drive assembly (2) is movably connected to the top of the drive head (3), the drive head (3) is fixedly connected to the bottom of the laser head (4), the outer wall of the laser head (4) is provided with a cooling mechanism (5), and the top of the main frame (1) is provided with a fixing mechanism (6). The fixing mechanism (6) includes: The support grid (61) is located at the top of the main frame (1) and at the bottom of the laser head (4). The top of the main frame (1) is provided with a limiting structure so that the support grid (61) can only move vertically on the top of the main frame (1). The cooling mechanism (5) includes: Fan (51), the fan (51) is fixedly connected to the top of the main frame (1); A shield (53) is fixedly connected to the outer wall of the main frame (1); A connecting pipe (52) is fixedly connected at one end to a fan (51) and at the other end to a shield (53).

2. The laser cutting device for furniture manufacturing according to claim 1, characterized in that: The inner wall of the shield (53) is fixedly connected with a guide screw (54), and the outer wall of the shield (53) is fixedly connected with a connecting pipe (57).

3. The laser cutting device for furniture manufacturing according to claim 1, characterized in that: The outer wall of the shield (53) is fixedly connected to a limiting plate (55), and an airbag (56) is fixedly connected to the bottom of the limiting plate (55) on the outer wall of the shield (53). An opening is provided inside the shield (53) at the corresponding position of the airbag (56).

4. The laser cutting device for furniture manufacturing according to claim 2, characterized in that: A pressure relief valve (58) is fixedly connected to the top of the connecting pipe (57), and a diverting pipe (59) is fixedly connected to the top of the pressure relief valve (58).

5. The laser cutting device for furniture manufacturing according to claim 4, characterized in that: The outer wall of the steering tube (59) is connected to a collection box (510) by a thread, and a barrier net (511) is provided on the side of the collection box (510) away from the steering tube (59).

6. The laser cutting device for furniture manufacturing according to claim 1, characterized in that: The top of the support net platform (61) is fixedly connected with several limiting protrusions (62), and the bottom of the support net platform (61) is provided with a connecting cylinder (67). The bottom of the connecting cylinder (67) is fixedly connected with a collecting cylinder (68) by bolts. The inside of the collecting cylinder (68) is fixedly connected with a filter screen (69), and the bottom of the filter screen (69) inside the collecting cylinder (68) is fixedly connected with a wind turbine (610).

7. The laser cutting device for furniture manufacturing according to claim 1, characterized in that: The bottom of the support platform (61) is provided with a guide rail, and the bottom of the support platform (61) is movably connected to a sliding rail (63) through the guide rail. Both ends of the sliding rail (63) are fixedly connected to a limiting position ring (64). The inside of the limiting position ring (64) is fixedly connected to a pushing column (65), and the pushing column (65) is fixedly connected to the corresponding position of the driving component (2). The outer wall of the sliding rail (63) is movably connected to a driving block (66), and the driving block (66) is fixedly connected to the connecting cylinder (67).

8. The laser cutting device for furniture manufacturing according to claim 1, characterized in that: The top of the main frame (1) is movably connected to the bottom of the support platform (61) and a cam (611) is fixedly connected to the top of the main frame (1), and the output shaft of the servo motor (612) is fixedly connected to the cam (611).

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