Laser cutting device for furniture processing

Abstract

The utility model provides a laser cutting device for furniture processing, which relates to the technical field of laser cutting and comprises a machine body, a guide rail moving frame is fixedly mounted on the upper surface of the machine body, a moving seat is slidably connected to the outer surface of the guide rail moving frame, a laser cutting head is fixedly connected to the bottom surface of the moving seat, and a cooling mechanism is arranged above the moving seat. According to the laser cutting device for furniture machining, the cooling mechanism is arranged to be matched with the flow disturbing assembly, low-temperature gas can be rapidly generated through cooperation of the vortex tube and high-pressure airflow, the low-temperature gas is blown to the cutting position of furniture raw materials cut by the laser cutting head through the exhaust hood, and then the furniture raw materials are cut through the low-temperature gas rapidly generated by the vortex tube; the laser cutting device can quickly cool a laser cutting opening, so that the laser cutting device can quickly cool the furniture cutting opening, waste heat generated by laser cutting is prevented from causing deformation of the two sides of a cutting position, and the furniture raw material cutting machining precision of the laser cutting device is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field, concretely is a laser cutting device for furniture processing. BACKGROUND

[0002] In furniture processing, especially in the carving process of some complex patterns and special shapes, the traditional carving method is to carve patterns on metal plates by slotting machines or cutting machines. Since it is hand carving, there will be deviations between the carved patterns and the actual patterns. Laser cutting technology can carve patterns on metal plates, wood and plastic materials by controlling laser beams. This technology can produce many exquisite patterns, such as European patterns, animal images and company logos, etc., while ensuring the beauty of the patterns, bringing more possibilities to furniture manufacturing.

[0003] In the patent CN221389403U, a laser cutting device for furniture processing is disclosed. By installing a collection unit and pulling the pull plate, the connecting plate moves forward and backward inside the pull slot. By moving the connecting plate inside the pull slot, the flip shaft one and the flip shaft two drive the flip plate to flip, so that the cut tools on the surface of the workbench enter the collection box, thereby protecting the workers and preventing them from being injured.

[0004] The existing laser cutting device of the above-mentioned patent technology has the problem that the residual heat of high-energy laser will cause deformation on both sides of the cutting position when cutting furniture raw materials, especially plastic materials and metal thin plates. Moreover, thicker furniture boards are also prone to excessive burning after laser cutting due to residual heat. However, the current laser cutting device cannot quickly cool the cutting port, resulting in poor precision when cutting furniture raw materials. Therefore, a laser cutting device for furniture processing is proposed. UTILITY MODEL CONTENTS

[0005] The utility model proposes a laser cutting device for furniture processing to solve the problem that the existing laser cutting device cannot quickly cool the cutting port, causing deformation of the furniture raw material cutting position.

[0006] The utility model is implemented by the following technical solutions: a laser cutting device for furniture processing, comprising a machine body, a guide rail moving frame is fixedly installed on the upper surface of the machine body, a moving seat is slidably connected to the outer surface of the guide rail moving frame, a laser cutting head is fixedly connected to the bottom surface of the moving seat, and a cooling mechanism is arranged above the moving seat.

[0007] The cooling mechanism comprises a vortex tube, the bottom surface of the vortex tube is fixedly connected with the upper surface of the moving base, the cold end of the vortex tube is fixedly communicated with a conveying pipe, the front surface of the moving base is fixedly connected with a connecting box, the bottom end of the conveying pipe penetrates into the interior of the connecting box, the bottom surface of the connecting box is fixedly communicated with a connecting pipe, the lower portion of the moving base is provided with an exhaust cover, the exhaust cover is arranged on the left side of the laser cutting head, the left side surface of the exhaust cover is fixedly communicated with an air inlet pipe.

[0008] The interior of the connecting box is provided with a turbulence component, the lower portion of the moving base is provided with a rotating component, and the upper portion of the rotating component is provided with a communication component.

[0009] The outer surface of the vortex tube is fixedly connected with a stable frame, and the bottom surface of the stable frame is fixedly connected with the upper surface of the moving base.

[0010] The turbulence component comprises a plurality of turbulence plates, one side surface of each of the plurality of turbulence plates is fixedly connected with the inner wall of the connecting box, the outer surface of the conveying pipe is fixedly communicated with two shunt pipes, the bottom end of each of the two shunt pipes penetrates into the interior of the connecting box, and the upper surface of the connecting box is fixedly communicated with a pressure relief valve.

[0011] The rotating component comprises a fixed disc, the inner wall of the fixed disc is fixedly connected with the outer surface of the laser cutting head, the outer surface of the fixed disc is sleeved with a rotating cylinder, the inner wall of the rotating cylinder is fixedly connected with two rotating bearings, the inner wall of the inner ring of one of the rotating bearings is fixedly connected with the outer surface of the fixed disc, the inner wall of the inner ring of the other rotating bearing is fixedly connected with a toothed disc, the upper portion of the fixed disc is provided with a servo motor, the upper surface of the servo motor is fixedly connected with the bottom surface of the moving base, the output end of the servo motor is fixedly connected with a gear, and the gear is engaged with the toothed disc.

[0012] The outer surface of the rotating cylinder is fixedly connected with a fixed frame, and the bottom surface of the fixed frame is fixedly connected with the upper surface of the exhaust cover.

[0013] The communication component comprises a sealing frame, the upper surface of the sealing frame is fixedly connected with the bottom surface of the moving base, the bottom end of the connecting pipe penetrates into the interior of the sealing frame, the inner wall of the sealing frame is fixedly connected with a first sealing bearing, the inner wall of the inner ring of the first sealing bearing is fixedly connected with a rotating ring, the top end of the air inlet pipe penetrates through the rotating ring and extends into the interior of the sealing frame, the inner wall of the rotating ring is fixedly connected with a second sealing bearing, and the inner wall of the inner ring of the second sealing bearing is fixedly connected with the inner wall of the sealing frame.

[0014] The utility model provides a laser cutting device for furniture processing, and has the following beneficial effects:

[0015] 1. The furniture processing laser cutting device is provided with a cooling mechanism and a spoiler assembly, which can quickly generate low-temperature gas by vortex tube and high-pressure airflow, and blow the low-temperature gas to the cutting position of the furniture raw material after the laser cutting head cuts, so as to quickly cool the laser cutting opening by the low-temperature gas generated by the vortex tube, so that the laser cutting device can quickly cool the furniture cutting opening, prevent the deformation of the cutting position on both sides caused by the residual heat of laser cutting, and ensure the cutting processing precision of the laser cutting device.

[0016] 2. The furniture processing laser cutting device is provided with a rotating assembly and a communication assembly, which can change the position of the exhaust hood according to the cutting moving direction of the laser cutting head without affecting the low-temperature gas entering the inside of the exhaust hood, so that the exhaust hood is always located on the cutting track of the laser cutting head, so that the cutting position can be fully cooled regardless of the moving direction of the laser cutting head, and the cooling performance and adaptability of the laser cutting device to the cutting position of the furniture raw material are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the machine body structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the sectional structure of the connecting box of the utility model;

[0019] Figure 3 It is a schematic diagram of the sectional structure of the sealing frame of the utility model;

[0020] Figure 4 It is a schematic diagram of the sectional structure of the rotating cylinder of the utility model.

[0021] REFERENCE SIGNS

[0022] 1, machine body; 2, guide rail moving frame; 3, moving seat; 4, laser cutting head;

[0023] 5, cooling mechanism; 501, vortex tube; 502, conveying pipe; 503, connecting box; 504, connecting pipe; 505, exhaust hood; 506, air inlet pipe; 507, stable frame;

[0024] 6, spoiler assembly; 601, spoiler plate; 602, shunt pipe; 603, pressure relief valve;

[0025] 7, rotating assembly; 701, fixed disc; 702, rotating cylinder; 703, rotating bearing; 704, toothed disc; 705, servo motor; 706, gear; 707, fixed frame;

[0026] 8, communication assembly; 801, seal frame; 802, first seal bearing; 803, rotating ring; 804, second seal bearing. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0028] Please refer to Figures 1-4 The utility model discloses a laser cutting device for furniture processing, including the body 1, the upper surface fixed mounting of body 1 has the guide rail moving frame 2, the outer surface sliding connection of guide rail moving frame 2 has the mobile seat 3, the bottom surface fixed connection of mobile seat 3 has the laser cutting head 4, and the upper of mobile seat 3 is provided with cooling mechanism 5;

[0029] The cooling mechanism 5 comprises a vortex tube 501, the bottom surface of which is fixedly connected with the upper surface of the moving base 3, the vortex tube 501 is composed of a nozzle, a vortex chamber, a separation orifice plate, a pipe and a control valve, the vortex chamber is in the middle and divides the pipe into cold and hot ends, the nozzle is tangentially arranged along the vortex chamber, that is, the high-pressure gas flow is introduced into the vortex chamber in a tangent direction, the gas compressed and cooled to normal temperature enters the nozzle, expands and accelerates to the sound speed in the nozzle, is injected into the vortex chamber from the tangent direction, forms a free vortex, the rotational angular velocity of the free vortex is larger closer to the center, due to the different angular velocities, friction is generated between the layers of the free vortex, the angular velocity of the gas flow in the center part is the largest, the friction results in that the energy is transmitted to the outer layer of the gas flow with lower angular velocity, the gas flow in the center layer loses energy, the kinetic energy is low, the speed is reduced, the temperature is reduced, the hole plate in the center of the vortex tube 501 is used to guide the cold gas flow required for refrigeration from one end, while the gas flow in the outer layer obtains momentum, the kinetic energy is increased, at the same time, the kinetic energy is converted into heat energy by friction with the wall of the vortex tube 501, the heat energy is guided out from the other end of the vortex tube 501 through the control valve, forms a hot gas flow, the flow and temperature of the cold and hot gas flows can be adjusted by controlling the control valve, the cold end of the vortex tube 501 is fixedly communicated with a conveying pipe 502, the front surface of the moving base 3 is fixedly connected with a connecting box 503, the bottom end of the conveying pipe 502 penetrates into the inside of the connecting box 503, the bottom surface of the connecting box 503 is fixedly communicated with a connecting pipe 504, a gas exhaust cover 505 is arranged below the moving base 3, the gas exhaust cover 505 is arranged on the left side of the laser cutting head 4, the left side surface of the gas exhaust cover 505 is fixedly communicated with an air inlet pipe 506, the outer surface of the vortex tube 501 is fixedly connected with a stable frame 507, the bottom surface of the stable frame 507 is fixedly connected with the upper surface of the moving base 3, the stable frame 507 can fix the position of the vortex tube 501 and increase the connection firmness of the vortex tube 501 and the moving base 3.

[0030] Please refer to Figure 2The interior of the connecting box 503 is provided with a spoiler assembly 6, the spoiler assembly 6 comprises a plurality of spoiler plates 601, one side of the plurality of spoiler plates 601 is fixedly connected with the inner wall of the connecting box 503, the outer surface of the conveying pipe 502 is fixedly communicated with two shunt pipes 602, the bottom ends of the two shunt pipes 602 are all penetrated into the interior of the connecting box 503, the upper surface of the connecting box 503 is fixedly communicated with a pressure relief valve 603, because the cutting position of the furniture raw material will soften due to high temperature after laser cutting, and then the high-speed airflow directly impacts will cause the laser cutting opening to deform, so when the high-speed low-temperature gas passes through the conveying pipe 502, the shunt pipe 602 can be used to shunt the gas in the conveying pipe 502, and the impact force of the low-temperature gas is preliminarily reduced, then when the gas enters the interior of the connecting box 503, through a plurality of spoiler plates 601 with a certain inclination angle, the flow rate of the low-temperature gas can be further reduced, so as to prevent the low-temperature gas flowing at high speed from directly blowing to the cutting position of the furniture raw material after laser cutting, causing the cutting position of the furniture raw material to deform due to the impact of the high-pressure gas, thereby improving the stability of the laser cutting position cooling, and finally the pressure relief valve 603 can further balance the pressure in the connecting box 503, so that the excessive gas pressure can be smoothly discharged outward.

[0031] Please refer to Figure 3 and Figure 4 The lower part of the moving seat 3 is provided with a rotating assembly 7, the rotating assembly 7 comprises a fixed disc 701, the inner wall of the fixed disc 701 is fixedly connected with the outer surface of the laser cutting head 4, the outer surface of the fixed disc 701 is sleeved with a rotating cylinder 702, the inner wall of the inner ring of one of the two rotating bearings 703 is fixedly connected with the outer surface of the fixed disc 701, the inner wall of the inner ring of the other rotating bearing 703 is fixedly connected with a toothed disc 704, the upper part of the fixed disc 701 is provided with a servo motor 705, the upper surface of the servo motor 705 is fixedly connected with the bottom surface of the moving seat 3, the output end of the servo motor 705 is fixedly connected with a gear 706, the gear 706 is engaged with the toothed disc 704, when the laser cutting head 4 changes the cutting direction, the power provided by the servo motor 705 cooperates with the gear 706 to drive the toothed disc 704 to rotate, when the toothed disc 704 rotates, cooperates with the rotating bearing 703 and the fixed disc 701, can drive the exhaust hood 505 to rotate horizontally, so that the exhaust hood 505 is located on the cutting track of the laser cutting head 4, so that no matter the laser cutting head 4 moves in any direction, the cutting position can be fully cooled, thereby improving the cooling adaptability of the laser cutting device to the cutting position of the furniture raw material.

[0032] Please refer to Figure 4The outer surface of the rotating cylinder 702 is fixedly connected with a fixing frame 707, and the bottom surface of the fixing frame 707 is fixedly connected to the upper surface of the exhaust hood 505. The fixing frame 707 can fix the exhaust hood 505 on the rotating cylinder 702 to ensure that the rotating cylinder 702 can smoothly drive the exhaust hood 505 to rotate horizontally.

[0033] Please refer to Figure 2 and Figure 3 , a connecting component 8 is provided above the rotating component 7. The connecting component 8 includes a sealing frame 801. The upper surface of the sealing frame 801 is fixedly connected to the bottom surface of the movable seat 3. The bottom end of the connecting pipe 504 passes through the interior of the sealing frame 801. The inner wall of the sealing frame 801 is fixedly connected to the first sealing bearing 802. The inner wall of the inner ring of the first sealing bearing 802 is fixedly connected to the rotating ring 803. The top end of the intake pipe 506 passes through the rotating ring 803 and extends to the interior of the sealing frame 801. The inner wall of the rotating ring 803 is fixedly connected to the second sealing bearing 804. The second sealing shaft The inner wall of the inner ring of the bearing 804 is fixedly connected to the inner wall of the sealing frame 801. When the exhaust hood 505 rotates horizontally, the rotating ring 803 can be driven to rotate through the air inlet pipe 506, and then the first sealing bearing 802 cooperates with the second sealing bearing 804 and the sealing frame 801. While not affecting the smooth rotation of the exhaust hood 505, the low-temperature gas can smoothly pass through the connecting pipe 504, the sealing frame 801 and the air inlet pipe 506 into the interior of the exhaust hood 505, ensuring that the exhaust hood 505 can smoothly follow the trajectory changes of the laser cutting head 4 to cool the cutting port.

[0034] When the present invention is in use: first, the servo motor 705 is connected to the external power supply and the controller, and then the high-pressure gas delivery port of the compressor is connected to the input port of the vortex tube 501 through a pipeline to ensure that the high-pressure gas can smoothly enter the interior of the vortex tube 501. When the laser cutting head 4 performs laser cutting processing on the furniture raw materials, the vortex tube 501 is used to cooperate with the entry of the high-pressure airflow to quickly generate low-temperature gas. At this time, the delivery pipe 502 connected to the cold end of the vortex tube 501 can deliver the high-speed low-temperature gas into the exhaust hood 505 through the connecting box 503, the connecting pipe 504, the sealing frame 801 and the air inlet pipe 506, and blow it to the cutting port of the furniture raw material after the laser cutting head 4 is cut through the exhaust hood 505, so that the laser cutting device can quickly cool down the cutting port of the furniture, prevent the residual heat generated by the laser cutting from causing deformation on both sides of the cutting position, and ensure the cutting processing accuracy of the furniture raw materials by the laser cutting device;

[0035] Since the furniture raw material will soften at the cutting position after laser cutting due to high temperature, and then the high-speed airflow directly impacts will cause the laser cutting opening to deform, when the high-speed low-temperature gas passes through the conveying pipe 502, the gas inside the conveying pipe 502 can be divided by the shunt pipe 602, so as to preliminarily reduce the impact force of the low-temperature gas, and then when the gas enters the inside of the connecting box 503, the flow rate of the low-temperature gas can be further reduced by the plurality of spoiler plates 601 with a certain inclination angle, so as to prevent the high-speed flowing low-temperature gas from directly blowing to the cutting position of the furniture raw material after laser cutting, causing the cutting position of the furniture raw material to deform due to the impact of the high-pressure gas, improving the stability of the cooling of the laser cutting position, and finally the pressure inside the connecting box 503 can be further balanced by the pressure relief valve 603, so that the excessive gas pressure can be smoothly discharged outward.

[0036] When the laser cutting head 4 changes the cutting direction, the power provided by the servo motor 705 cooperates with the gear 706 to drive the gear disc 704 to rotate, and when the gear disc 704 rotates, the rotating bearing 703 and the fixed disc 701 are matched to drive the exhaust hood 505 to rotate horizontally, so that the exhaust hood 505 is located on the cutting track of the laser cutting head 4, that is, when the laser cutting head 4 moves to the left, the exhaust hood 505 is rotated to the right side of the laser cutting head 4, and so on, so that no matter the laser cutting head 4 moves in any direction, the cutting position can be fully cooled, and the cooling adaptability of the laser cutting device to the cutting position of the furniture raw material is improved.

[0037] When the exhaust hood 505 rotates horizontally, the rotating ring 803 can be driven to rotate through the air inlet pipe 506, and then the low-temperature gas can smoothly pass through the connecting pipe 504, the sealing frame 801 and the air inlet pipe 506 into the inside of the exhaust hood 505 while the exhaust hood 505 is smoothly rotated by the first sealing bearing 802 cooperating with the second sealing bearing 804 and the sealing frame 801, so as to ensure that the exhaust hood 505 can smoothly follow the track change of the laser cutting head 4 to cool the cutting opening.

[0038] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for furniture processing, comprising a body (1), characterized in that: A guide rail movable frame (2) is fixedly mounted on the upper surface of the machine body (1); a movable seat (3) is slidably connected to the outer surface of the guide rail movable frame (2); a laser cutting head (4) is fixedly connected to the bottom surface of the movable seat (3); and a cooling mechanism (5) is provided above the movable seat (3); The cooling mechanism (5) comprises a vortex tube (501), the bottom surface of the vortex tube (501) is fixedly connected to the upper surface of the movable seat (3), the cold end of the vortex tube (501) is fixedly connected to a delivery pipe (502), the front surface of the movable seat (3) is fixedly connected to a connection box (503), the bottom end of the delivery pipe (502) passes through the interior of the connection box (503), the bottom surface of the connection box (503) is fixedly connected to a connection pipe (504), an exhaust hood (505) is provided below the movable seat (3), the exhaust hood (505) is provided on the left side of the laser cutting head (4), and the left side of the exhaust hood (505) is fixedly connected to an air intake pipe (506); A spoiler assembly (6) is provided inside the connection box (503), a rotating assembly (7) is provided below the movable seat (3), and a connecting assembly (8) is provided above the rotating assembly (7).

2. The laser cutting device for furniture processing according to claim 1, characterized in that: The outer surface of the vortex tube (501) is fixedly connected to a stabilizing frame (507), and the bottom surface of the stabilizing frame (507) is fixedly connected to the upper surface of the movable seat (3).

3. The laser cutting device for furniture processing according to claim 1, characterized in that: The spoiler assembly (6) comprises a plurality of spoilers (601), one side of each of the spoilers (601) is fixedly connected to the inner wall of the connection box (503), the outer surface of the delivery pipe (502) is fixedly connected to two shunt pipes (602), the bottom ends of the two shunt pipes (602) are passed through the interior of the connection box (503), and the upper surface of the connection box (503) is fixedly connected to a pressure relief valve (603).

4. The laser cutting device for furniture processing according to claim 1, characterized in that: The rotating assembly (7) comprises a fixed disk (701), the inner wall of the fixed disk (701) is fixedly connected to the outer surface of the laser cutting head (4), the outer surface of the fixed disk (701) is sleeved with a rotating cylinder (702), the inner wall of the rotating cylinder (702) is fixedly connected to two rotating bearings (703), the inner wall of the inner ring of one of the rotating bearings (703) is fixedly connected to the outer surface of the fixed disk (701), and the inner wall of the inner ring of the other rotating bearing (703) is fixedly connected to a toothed disk (704), a servo motor (705) is arranged above the fixed disk (701), the upper surface of the servo motor (705) is fixedly connected to the bottom surface of the movable seat (3), and the output end of the servo motor (705) is fixedly connected to a gear (706), and the gear (706) is meshed with the toothed disk (704).

5. The laser cutting device for furniture processing according to claim 4, characterized in that: The outer surface of the rotating cylinder (702) is fixedly connected to a fixing frame (707), and the bottom surface of the fixing frame (707) is fixedly connected to the upper surface of the exhaust hood (505).

6. The laser cutting device for furniture processing according to claim 1, characterized in that: The connecting component (8) includes a sealing frame (801), the upper surface of the sealing frame (801) is fixedly connected to the bottom surface of the movable seat (3), the bottom end of the connecting pipe (504) passes through the interior of the sealing frame (801), the inner wall of the sealing frame (801) is fixedly connected to a first sealing bearing (802), the inner wall of the inner ring of the first sealing bearing (802) is fixedly connected to a rotating ring (803), the top end of the air inlet pipe (506) passes through the rotating ring (803) and extends to the interior of the sealing frame (801), the inner wall of the rotating ring (803) is fixedly connected to a second sealing bearing (804), and the inner wall of the inner ring of the second sealing bearing (804) is fixedly connected to the inner wall of the sealing frame (801).

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