A cooling system for a laser cutting machine

Abstract

The present invention discloses a cooling system for a laser cutting machine, comprising an air cooler and a cooling pipe, wherein the air outlet end of the air cooler is bolted with an air collecting hopper, and the air outlet end of the air collecting hopper is provided with an air supply pipe, an air inlet pipe connected to the interior of the cooling pipe is welded to the bottom of one end of the cooling pipe, the air outlet end of the air supply pipe is sealed with the air inlet pipe, an arc-shaped groove is provided on the inner surface of the cooling pipe, the top and bottom of the arc-shaped groove extend to the top and bottom of the cooling pipe respectively, and an exhaust fan for upward exhaust is provided at the top of the cooling pipe. The exhaust fan can make the gas in the cooling pipe move upward, and the arc-shaped groove in the cooling pipe provides sufficient channels for the flow of gas, so that the gas in the cooling pipe after cooling the laser can be discharged from the top of the cooling pipe, thereby preventing the sparks during cutting from flying further under the action of turbulent airflow, thereby improving safety.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting machines, and in particular relates to a cooling system for a laser cutting machine. Background Art

[0002] Laser cutting machine is a new cutting method in the cutting field. It is more efficient than traditional cutting methods, generates less heat, and has better integrity of the cutting area. It can be applied to cutting multiple groups of materials, such as steel, wood, plastic and rubber, etc. Although the laser cutting machine has a small amount of heat when working, in order to ensure its cutting stability for long-term use, a cooling system is generally installed on the laser cutting machine.

[0003] The cooling system of existing laser cutting machines can use air cooling, that is, using low-temperature gas to blow through the laser to cool the laser. However, when using low-temperature gas for cooling, the direction of the airflow cannot be well controlled, causing the airflow to spread around, thereby causing the sparks generated by the laser cutting machine during the cutting process to fly farther, posing a safety hazard. Summary of the Invention

[0004] The purpose of the present invention is to provide a cooling system for a laser cutting machine to solve the problem proposed in the above-mentioned background technology that the method of better controlling the movement direction of the airflow causes the airflow to spread around, thereby causing the sparks generated by the laser cutting machine during the cutting process to fly farther, causing a safety hazard.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a laser cutting machine cooling system, comprising an air cooler and a cooling pipe, the air outlet end of the air cooler is installed with an air collecting hopper by bolts, and the air outlet end of the air collecting hopper is equipped with an air supply pipe, an air inlet pipe connected to the interior is welded to the bottom of one end of the cooling pipe, the air outlet end of the air supply pipe is sealed with the air inlet pipe, an arc groove is provided on the inner surface of the cooling pipe, the top and bottom of the arc groove extend to the top and bottom of the cooling pipe respectively, and an exhaust fan for exhausting air upward is provided at the top of the cooling pipe.

[0006] Furthermore, the cooling tube is composed of a first arc tube and a second arc tube, a plug rod is welded to the end of the first arc tube relative to the second arc tube, a slot for accommodating the plug rod is opened on the end surface of the second arc tube relative to the first arc tube, and electric cylinders are provided at the ends of the first arc tube and the second arc tube that are away from each other, and the output shafts of the two electric cylinders are respectively connected to the first arc tube and the second arc tube by screws.

[0007] Furthermore, the gas transmission pipe is composed of a hose and a thermal insulation layer. A cavity is opened in the wall of the hose, and the cavity is filled with coolant. The thermal insulation layer is glued and connected to the outer periphery of the hose.

[0008] Furthermore, the end of the gas pipe close to the wind collecting hopper is hot-melt-connected with a liquid pipe connected to the hose, and a valve is provided on the liquid pipe.

[0009] Furthermore, a positioning tube is slidingly sleeved on the periphery of the gas delivery pipe, and a shaping hose is mounted on the outer side of the positioning tube via screws, and a free end of the shaping hose is mounted on a connecting plate via bolts.

[0010] Furthermore, the exhaust fan is connected to the second arc-shaped tube via screws, and the air intake pipe is located on the first arc-shaped tube.

[0011] Furthermore, a thermometer is mounted on one end of the first arc tube via a screw, and a detection end of the thermometer is located inside the cooling tube.

[0012] Furthermore, a filter is installed in the air collecting hopper by screws.

[0013] Furthermore, a fixing plate is mounted on one end of the electric cylinder away from the cooling pipe via bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting up the exhaust fan, cooling pipe and arc groove, the exhaust fan can make the gas in the cooling pipe move upward, and the arc groove in the cooling pipe will provide sufficient channels for the flow of gas, so that the gas in the cooling pipe after cooling the laser can be discharged from the top of the cooling pipe, thereby preventing the sparks during cutting from flying further under the action of turbulent airflow, thereby improving safety.

[0016] 2. By setting up an electric cylinder, a first arc tube and a second arc tube, the cooling tube is composed of the first arc tube and the second arc tube, and the electric cylinder can separate the first arc tube and the second arc tube from each other, so that the cooling tube no longer wraps the laser. Therefore, when the working environment temperature is low, personnel can use the electric cylinder to separate the first arc tube and the second arc tube from each other, so that there is no obstruction around the laser, and it is naturally cooled by the low temperature environment of the working area, so that there is no need to use equipment such as air coolers, thereby reducing energy loss.

[0017] 3. By setting up the gas pipe, cavity and coolant, the coolant has a large specific heat capacity. When the air cooler starts working, the low-temperature gas transported to the gas pipe will pre-cool the coolant, so that the coolant is in a low-temperature state. At this time, the laser has just started working, so its temperature has not reached the cooling requirement. When the laser cutting machine is turned off, the low temperature remaining in the coolant can still be transferred to the cooling pipe through the gas, thereby cooling the laser and improving the utilization rate of the cold air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of a cooling system for a laser cutting machine according to the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of a cooling pipe of a laser cutting machine cooling system of the present invention.

[0020] Figure 3 This is a schematic diagram of the connection structure between the second arc tube and the first arc tube of a cooling system for a laser cutting machine of the present invention.

[0021] Figure 4 This is a schematic diagram of the connection structure of the arc groove, the second arc tube and the exhaust fan of the cooling system of a laser cutting machine of the present invention.

[0022] Figure 5 The figure is a schematic diagram of the cross-sectional structure of the gas pipeline of the cooling system of a laser cutting machine according to the present invention.

[0023] Figure 6 This is a schematic diagram of the connection structure of an air cooler, an air collecting hopper and a filter screen in a cooling system of a laser cutting machine of the present invention.

[0024] In the figure: 1. Air cooler; 2. Air collecting scoop; 3. Liquid pipe; 4. Air pipe; 5. Connecting plate; 6. Molded hose; 7. Positioning pipe; 8. Exhaust fan; 9. Electric cylinder; 10. Fixing plate; 11. Cooling pipe; 12. Thermometer; 13. Inlet pipe; 14. Insert rod; 15. Slot; 16. Arc groove; 17. Second arc pipe; 18. First arc pipe; 19. Hose; 20. Cavity; 21. Coolant; 22. Insulation layer; 23. Valve; 24. Filter. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1 、 2As shown in Figure 4, a cooling system for a laser cutting machine includes an air cooler 1 and a cooling pipe 11. The air outlet end of the air cooler 1 is installed with an air collecting hopper 2 by bolts, and the air outlet end of the air collecting hopper 2 is covered with an air supply pipe 4. An air inlet pipe 13 connected to the interior of the cooling pipe 11 is welded to the bottom of one end of the cooling pipe 11. The air outlet end of the air supply pipe 4 is sealed with the air inlet pipe 13. An arc groove 16 is provided on the inner surface of the cooling pipe 11. The top and bottom of the arc groove 16 extend to the top and bottom of the cooling pipe 11 respectively. An exhaust fan 8 for exhausting air upward is provided at the top of the cooling pipe 11. There are multiple groups of arc grooves 16, which can provide sufficient channels for gas flow, and the corresponding wires can also be connected to the laser through the arc grooves 16.

[0027] Among them, such as Figure 1 、 3 As shown, the cooling tube 11 is composed of a first arc tube 18 and a second arc tube 17. The first arc tube 18 is welded with an insertion rod 14 at the end opposite to the second arc tube 17. The end surface of the second arc tube 17 opposite to the first arc tube 18 is provided with a slot 15 for accommodating the insertion rod 14. The ends of the first arc tube 18 and the second arc tube 17 that are away from each other are both provided with electric cylinders 9. The output shafts of the two electric cylinders 9 are respectively connected to the first arc tube 18 and the second arc tube 17 by screws; the first arc tube 18 and the second arc tube 17 can be separated from each other, so that the cooling tube 11 no longer wraps the laser, and when the insertion rod 14 is inserted into the slot 15, the first arc tube 18 and the second arc tube 17 will have good connection stability.

[0028] Among them, such as Figure 1 、 5 As shown, the gas pipe 4 is composed of a hose 19 and an insulation layer 22. A cavity 20 is opened in the wall of the hose 19, and the cavity 20 is filled with coolant 21. The insulation layer 22 is glued to the outer periphery of the hose 19; the insulation layer 22 is made of rock wool material and has good thermal insulation performance.

[0029] Among them, such as Figure 5 As shown, the end of the gas pipe 4 near the wind collecting hopper 2 is hot-melt connected to a liquid pipe 3 connected to the hose 19, and a valve 23 is provided on the liquid pipe 3; personnel can open the valve 23 to replace the coolant 21 in the cavity 20 through the liquid pipe 3.

[0030] Among them, such as Figure 1As shown, a positioning tube 7 is slidingly sleeved on the outer periphery of the gas pipe 4, and a shaping hose 6 is installed on the outside of the positioning tube 7 by screws, and the free end of the shaping hose 6 is installed on the connecting plate 5 by bolts; the shape of the shaping hose 6 is easy to change, and the positioning tube 7 can be located at a specified position of the gas pipe 4, so personnel can connect and fix the connecting plate 5 to the corresponding external components, so that the layout trajectory of the gas pipe 4 meets personnel requirements.

[0031] Among them, such as Figure 1 、 2 As shown in FIG. 4 , the exhaust fan 8 is connected to the second arc tube 17 by screws, and the air inlet pipe 13 is located on the first arc tube 18 ; the exhaust fan 8 can make the gas in the cooling pipe 11 move upward.

[0032] Among them, such as Figure 1 、 2 As shown in FIG. 4 , a thermometer 12 is installed at one end of the first arc tube 18 by a screw, and the detection end of the thermometer 12 is located in the cooling tube 11 ; personnel can know the temperature condition in the cooling tube 11 through the thermometer 12 .

[0033] Among them, such as Figure 6 As shown, a filter 24 is installed in the air collecting hopper 2 by screws; the filter 24 can intercept impurities in the air, and both the filter 24 and the air collecting hopper 2 can be disassembled, so the filter 24 can be easily cleaned by personnel.

[0034] Among them, such as Figure 1 As shown, a fixing plate 10 is mounted on one end of the electric cylinder 9 away from the cooling pipe 11 through bolts; personnel can fix the electric cylinder 9 on a component that moves together with the laser through the fixing plate 10 .

[0035] The working principle and usage process of the present invention are as follows: personnel can install the cooling pipe 11 to the periphery of the laser of the laser cutting machine, and install the electric cylinder 9 on the component that moves with the laser. Next, when the laser cutting machine is working, personnel can turn on the air cooler 1, which can transport the low-temperature gas to the inside of the cooling pipe 11 through the gas pipe 4, thereby cooling the laser in the cooling pipe 11. During this process, personnel can turn on the exhaust fan 8, which can make the gas in the cooling pipe 11 move upward, and the arc groove 16 in the cooling pipe 11 will provide sufficient channels for the flow of gas, so that the gas in the cooling pipe after cooling the laser can be discharged from the top of the cooling pipe, thereby preventing the sparks during cutting from flying farther under the action of turbulent airflow, so as to improve safety. Next, when the working environment temperature is low, personnel can control the electric cylinder 9 to work, so that the first arc tube 18 and the second arc tube 17 are separated from each other, so that there is no obstruction around the laser, and it is naturally cooled by the low temperature environment of the working area, so that there is no need to use equipment such as the air cooler 1, thereby reducing energy loss.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cooling system for a laser cutting machine, comprising an air cooler (1) and a cooling pipe (11), characterized in that: The air outlet end of the air cooler (1) is installed with an air collecting hopper (2) by means of bolts, and the air outlet end of the air collecting hopper (2) is provided with an air supply pipe (4), an air inlet pipe (13) which is in communication with the interior of the cooling pipe (11) is welded to the bottom of one end of the cooling pipe (11), the air outlet end of the air supply pipe (4) is sealedly connected to the air inlet pipe (13), an arc groove (16) is provided on the inner surface of the cooling pipe (11), the top and bottom of the arc groove (16) respectively extend to the top and bottom of the cooling pipe (11), and an exhaust fan (8) for exhausting air upward is provided at the top of the cooling pipe (11); The cooling tube (11) is composed of a first arc tube (18) and a second arc tube (17), wherein an insertion rod (14) is welded to the end of the first arc tube (18) relative to the second arc tube (17), and a slot (15) for accommodating the insertion rod (14) is provided on the surface of the end of the second arc tube (17) relative to the first arc tube (18), and electric cylinders (9) are provided at the ends of the first arc tube (18) and the second arc tube (17) that are away from each other, and the output shafts of the two electric cylinders (9) are respectively connected to the first arc tube (18) and the second arc tube (17) by screws; The gas delivery pipe (4) is composed of a hose (19) and a heat-insulating layer (22); a cavity (20) is provided in the wall of the hose (19), and the cavity (20) is filled with a coolant (21); the heat-insulating layer (22) is glued to the outer periphery of the hose (19); The end of the gas delivery pipe (4) close to the air collecting hopper (2) is hot-melt-connected to a liquid pipe (3) connected to the hose (19), and a valve (23) is provided on the liquid pipe (3).

2. A cooling system for a laser cutting machine according to claim 1, characterized in that: The air delivery pipe (4) is slidably sleeved with a positioning pipe (7), and a shaping hose (6) is mounted on the outside of the positioning pipe (7) via screws, and the free end of the shaping hose (6) is mounted on the connecting plate (5) via bolts.

3. The cooling system for a laser cutting machine according to claim 1, characterized in that: The exhaust fan (8) is connected to the second arc-shaped tube (17) via screws, and the air intake pipe (13) is located on the first arc-shaped tube (18).

4. A cooling system for a laser cutting machine according to claim 1, characterized in that: A thermometer (12) is mounted on one end of the first arc tube (18) via a screw, and a detection end of the thermometer (12) is located inside the cooling tube (11).

5. The cooling system for a laser cutting machine according to claim 1, characterized in that: A filter screen (24) is installed in the air collecting hopper (2) via screws.

6. The cooling system for a laser cutting machine according to claim 1, characterized in that: One end of the electric cylinder (9) away from the cooling pipe (11) is mounted with a fixing plate (10) via bolts.

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