Laser cutting machine facilitating smoke exhaust

Abstract

The laser cutting machine comprises a machine body and supports, bearing beams are connected to the two sides of the machine body through the supports, a sliding plate is connected to the tops of the bearing beams, a cutting gun head is connected to the center of the sliding plate, a cooling liquid box is arranged in the center of the machine body, and a cutting head is arranged in the cooling liquid box. A telescopic rod is arranged in the center of the interior of the cooling liquid box, a motor is arranged on one side of the telescopic rod, a water guide groove is connected to the other side of the telescopic rod, water guide pipes are connected to the two sides of the cooling liquid box, dust collection covers are arranged at the tops of the two sides of the cooling liquid box, and air pipes are connected to one sides of the dust collection covers; one side of the air pipe is connected with the air bellow, the water guide groove plate is adopted to drive a cut object to enter the cooling liquid box to be rapidly cooled through vertical movement of the telescopic rod, internal stress deformation caused by uneven cooling of the cut object is reduced, the filter layer is arranged in the air bellow to filter smoke dust, the environment is protected, and the health of workers cannot be harmed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a laser cutting machine which is convenient for smoke exhaust. Background Art

[0002] Laser cutting machines are now widely used in cutting various materials. Laser cutting machines use a high-power density laser beam to scan the surface of the material, heating the material to several thousand to tens of thousands of degrees Celsius in a very short time, melting or vaporizing the material, and then blowing the melted or vaporized material away from the cut to achieve the purpose of cutting the material.

[0003] According to the patent number CN106425113A, a laser cutting machine includes a bed frame, a feeding device, a first transverse bracket, and a second transverse bracket. The first transverse bracket and the second transverse bracket are arranged in the tracks on both sides of the bed frame, and the track between the first transverse bracket and the second transverse bracket is provided with a limit block. The first transverse bracket is provided with a laser head, and the second transverse bracket is provided with a plurality of sorting devices. The first transverse bracket is arranged in the cutting device, and the cutting device also includes a segmented dust removal device arranged at the lower part of the first transverse bracket. The feeding device includes a clamping roller and a feeding roller, and the clamping roller is controlled by a controller. The setting of the sorting device of the feeding part is conducive to sorting out the cut products, and the structure is simple and the sorting is convenient, so as to avoid the discharge of products and waste materials together, reduce the steps of manual sorting of products in the later stage, save time, and save manpower and material resources. However, the patent lacks a cooling device for the cutting parts, which may cause the cut parts to be thermally deformed at high temperature and affect the product quality. Workers are at risk of being scalded when taking out the parts. At the same time, the smoke exhaust device will generate noise during the smoke exhaust process, and directly discharge smoke into the air to pollute the environment, which is harmful to employees.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a laser cutting machine that is easy to exhaust smoke is proposed to achieve a more practical purpose. Utility Model Content

[0005] The purpose of the utility model is to provide a laser cutting machine that is easy to exhaust smoke, so as to solve the problem proposed in the above-mentioned background technology that the above-mentioned laser cutting machine lacks a cooling device for the cut parts during use, resulting in thermal deformation affecting product quality, and at the same time, the noise is too loud during smoke exhaust and is directly discharged into the air to pollute the environment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cutting machine that is easy to exhaust smoke, including a machine body and a support, characterized in that: both sides of the machine body are connected with support beams through the support, the top of the support beam is connected with a sliding plate, the center of the sliding plate is connected with a cutting gun head, a coolant tank is arranged at the center of the machine body, a telescopic rod is arranged at the inner center of the coolant tank, a motor is arranged on one side of the telescopic rod, a water guide trough is connected on the other side of the telescopic rod, water pipes are connected on both sides of the coolant tank, dust hoods are arranged on the top of both sides of the coolant tank, one side of the dust hood is connected with an air duct, one side of the air duct is connected with a bellows, and a water tank is arranged on the lower inner side of the machine body.

[0007] Furthermore, the supports are provided in four groups, the support beams are provided in two groups, and every two groups of the supports are evenly arranged at the bottom of one group of the support beams.

[0008] Furthermore, the top of the support beam is connected to a No. 1 slide rail, the top of the sliding plate is connected to a No. 2 slide rail, and limit blocks are provided at both ends of the No. 1 slide rail and the No. 2 slide rail, and a rack is connected at the top center of the cutting gun head.

[0009] Furthermore, two groups of dust hoods and air ducts are provided, and both groups of dust hoods are connected to the interior of the bellows through air ducts, an activated carbon layer is provided inside the bellows, a filter layer is provided below the activated carbon layer, negative pressure fans are connected to both sides of the bellows, an exhaust port is provided on the side of the negative pressure fan close to the machine body, and a sound insulation cover is provided on one side of the exhaust port.

[0010] Furthermore, a water inlet is provided on an inner wall of one side of the water tank, a water pump is connected to the top of the water tank, a water pipe on one side of the coolant tank is connected to the water pump, and a water outlet is connected to the water pipe on the other side of the coolant tank.

[0011] Furthermore, a numerical control plate is provided on one side of the support beam.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the laser cutting machine that is convenient for smoke exhaust uses a water guide plate to move up and down through a telescopic rod to drive the cut object into the coolant tank for rapid cooling, thereby reducing the internal stress deformation of the cut object caused by uneven cooling, and reducing the emission noise through a soundproof cover. At the same time, a filter layer is provided in the wind box for filtering and then discharged, thereby protecting the environment and not endangering the health of the staff. The specific contents are as follows:

[0013] A coolant tank is arranged on the top of the machine body, and soundproof covers are arranged on the upper sides of the coolant tank. The soundproof covers are connected to the bellows through air ducts. When the cutting operation starts, the cutting of the object to be cut by the cutting gun head will generate smoke and dust that will be melted and blown away by high temperature. At this time, two sets of negative pressure fans arranged at the bottom of the bellows can make the smoke and dust enter the bellows from the dust collecting hood. The bellows are provided with an activated carbon layer and a filter layer, which can filter out tiny particle pollutants, miscellaneous colors and odors in the smoke and dust, and then discharge them into the air through the exhaust port of the negative pressure fan, which can effectively prevent the smoke and dust in the cutting operation from polluting the environment and endangering the health of the workers. A water guide plate is connected to the coolant tank through a telescopic rod, and the object to be cut is placed on the water guide plate and cut using the cutting gun head. When the cutting operation is completed, the water guide plate is driven downward by the telescopic rod, thereby driving the cut object to enter the coolant for rapid cooling, reducing the internal stress and deformation caused by uneven cooling, and avoiding damage to the surface treatment layer due to high temperature. The water guide groove on the surface of the water guide plate can prevent the liquid from remaining at the bottom of the object to be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of a laser cutting machine that is convenient for smoke exhaust in the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of a laser cutting machine that is convenient for smoke exhaust in the utility model;

[0016] Figure 3 This is a side structural schematic diagram of a laser cutting machine that is convenient for smoke exhaust in the utility model;

[0017] Figure 4 It is a schematic diagram of the side outer surface of a laser cutting machine that is convenient for smoke exhaust according to the utility model.

[0018] In the figure: 1. Machine body; 2. Support; 3. Support beam; 4. Sliding plate; 5. Cutting gun head; 6. Coolant tank; 7. Telescopic rod; 8. Motor; 9. Water guide trough plate; 10. Water guide pipe; 11. Dust hood; 12. Air duct; 13. Bellows; 14. Negative pressure fan; 15. Water tank; 16. Water pump; 17. No. 1 slide rail; 18. No. 2 slide rail; 19. Limit block; 20. Rack; 21. Activated carbon layer; 22. Filter layer; 23. Exhaust port; 24. Water inlet; 25. CNC board; 26. Water outlet; 27. Soundproof cover. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 - Figure 4 The utility model provides a technical solution: a laser cutting machine that is convenient for smoke exhaust, including a machine body 1 and a support 2. The tops of both sides of the machine body 1 are connected with support beams 3 through the support 2. The support 2 is made of metal material and plays the role of supporting the support beam 3. The support 2 is provided with four groups, and every two groups of supports 2 are evenly connected to the bottom of a group of support beams 3. The support beam 3 is provided with two groups. A No. 1 slide rail 17 is provided on the top of the support beam 3. The No. 1 slide rail 17 can make the sliding plate 4 installed on the support beam 3 slide forward and backward. Both ends of the No. 1 slide rail 17 are provided with limit blocks 19. The limit blocks 19 are made of rubber material and play the role of limiting the displacement of the sliding plate 4 beyond the limited range. A No. 2 slide rail 18 is provided on the upper surface of the sliding plate 4. The No. 2 slide rail 18 can allow the cutting gun head 5 installed thereon to move left and right, so as to accurately cut the object to be cut. Limit blocks 19 are also provided at both ends of the No. 2 slide rail 18. The cutting gun head 5 uses a high-density laser beam to scan the surface of the object to be cut and then blows away the high-temperature vaporized material to cut the object. A rack 20 is connected above the cutting gun head 5. The rack 20 can cooperate with the gear in the cutting gun head 5 to highly accurately control the displacement of the cutting gun head 5 on the No. 2 slide rail 18, thereby ensuring high repeatability and low error of the cutting process.

[0021] A coolant tank 6 is arranged at the center of the machine body 1. The coolant tank 6 is made of metal material and serves to contain coolant. Ethylene glycol antifreeze is placed therein for quickly cooling the object to be cut. A telescopic rod 7 is arranged at the center of the coolant tank 6. The telescopic rod 7 can be moved up and down along the thread on the rod body by the drive of the bottom motor 8. A water guide plate 9 is connected to one side of the telescopic rod 7. The water guide plate 9 is a metal plate body and serves as a platform for placing the object to be cut. At the same time, a plurality of groups of water guide grooves are opened on the top of the water guide plate 9, which can make the water guide plate 9 drop into the coolant under the action of the telescopic rod 7 to cool the object to be cut and then rise to make the plate body The remaining coolant on the plate is quickly discharged without remaining on the plate body. Water pipes 10 are arranged on both sides of the coolant tank 6. The water pipes 10 are made of soft materials. One side of the water pipe 10 is connected to the water outlet 26 opened on the machine body 1. The water outlet 26 can discharge the used coolant in the coolant tank 6 to prevent corrosion of machine parts. The water pipe 10 on the other side is connected to the water pump 16. The water pump 16 is connected to the water tank 15. The water tank 15 plays the role of containing the coolant. The coolant can be added to the water tank 15 through the water inlet 24 on the water tank 15, and then pumped into the coolant tank 6 by the water pump 16 for use, which is easy to replace and use the coolant.

[0022] Dust hoods 11 are arranged on the top of both sides of the coolant tank 6. The dust hoods 11 prevent smoke from scattering and make the suction more concentrated. Two groups of dust hoods 11 are arranged. The rear side of each group of dust hoods 11 is connected to an air duct 12. The air duct 12 is a soft material pipe body. The two groups of air ducts 12 are connected to the bellows 13. Two layers of filtration are arranged inside the bellows 13. The first layer is an activated carbon layer 21. The activated carbon layer 21 can absorb fine particles and impurities in the smoke. The second layer is a filter screen. Layer 22, the filter layer 22 can filter out the flocculent matter in the smoke again, and then through the action of two groups of negative pressure fans 14, the filtered clean gas is discharged into the air from the exhaust ports 23 on both sides to form a circulation filtration. A soundproof cover 27 is arranged on one side of the exhaust port 23, and the soundproof cover 27 plays a role in reducing the noise problem caused by the circulation filtration. A numerical control board 25 is arranged on one side of the support beam 3, and the numerical control board 25 can accurately operate the cutting gun head 5, the telescopic rod 7 and the negative pressure fan 14.

[0023] Working principle: When using a laser cutting machine that is easy to exhaust smoke, the object to be cut is placed on the water guide plate 9, and then the cutting gun head 5 is started through the numerical control board 25. The cutting gun head 5 moves in multiple directions in the No. 1 slide rail 17 and the No. 2 slide rail 18 set on the sliding plate 4 and the support beam 3, and accurately performs high-temperature cutting operations on the object to be cut. During the operation, the smoke generated by the cutting can be sucked in through the dust collecting hood 11 set above both sides of the coolant tank 6 to avoid its direct discharge to pollute the environment and endanger the health of the workers. The smoke is sent to the bellows 13 through the air duct 12. After the smoke passes through the activated carbon layer 21 and the filter layer 22 in the bellows 13 to filter out tiny particles of impurities and odors, it is discharged into the air through the negative pressure fan 14 through the exhaust port 23. After circulating and filtering, it is discharged without polluting the environment. When the cutting operation is completed, the water guide plate 9 will drive the object to be cut to descend through the telescopic rod 7 The coolant entering the coolant tank 6 is cooled quickly, which can quickly absorb the heat of the components, thereby quickly reducing their temperature. The use of coolant can make the components cool more evenly and reduce internal stress and deformation caused by uneven cooling. Rapid cooling helps to maintain the integrity of these surfaces and avoid damage to the surface treatment layer due to high temperature, thereby improving production efficiency. After cooling is completed, the water guide plate 9 will carry the cut object up and out of the coolant tank 6, and the residual coolant will flow down through the water guide groove on the water guide groove plate 9 to prevent accumulation on the plate body. When the work is completed, the used coolant can be discharged through the water outlet 26 through the water pipe 10 set at the bottom of the coolant tank 6 to prevent internal corrosion of the body 1 parts. When it is necessary to work again, the coolant in the water tank 15 can be pumped into the coolant tank 6 through the water pump 16 through the water pipe 10 on the other side, thereby improving work efficiency.

Claims

1. A laser cutting machine that facilitates smoke exhaust, comprising a machine body (1) and a support (2), characterized in that: The two sides of the machine body (1) are connected to a support beam (3) through a support (2), the top of the support beam (3) is connected to a sliding plate (4), the center of the sliding plate (4) is connected to a cutting gun head (5), a coolant tank (6) is arranged at the center of the machine body (1), a telescopic rod (7) is arranged at the inner center of the coolant tank (6), a motor (8) is arranged on one side of the telescopic rod (7), a water guide groove (9) is connected to the other side of the telescopic rod (7), both sides of the coolant tank (6) are connected to water guide pipes (10), both sides of the coolant tank (6) are provided with dust hoods (11) on the top, one side of the dust hood (11) is connected to an air duct (12), one side of the air duct (12) is connected to a bellows (13), and a water tank (15) is arranged on the lower side of the inner part of the machine body (1).

2. The laser cutting machine for facilitating smoke exhaust according to claim 1, characterized in that: The supports (2) are provided in four groups, the support beams (3) are provided in two groups, and every two groups of the supports (2) are evenly arranged at the bottom of one group of the support beams (3).

3. The laser cutting machine for facilitating smoke exhaust according to claim 1, characterized in that: The top of the support beam (3) is connected to a first slide rail (17), the top of the sliding plate (4) is connected to a second slide rail (18), and both ends of the first slide rail (17) and the second slide rail (18) are provided with limit blocks (19), and the top center of the cutting gun head (5) is connected to a rack (20).

4. The laser cutting machine for facilitating smoke exhaust according to claim 1, characterized in that: The dust collecting hood (11) and the air duct (12) are provided in two groups, and the two groups of dust collecting hoods (11) are connected to the interior of the wind box (13) through the air duct (12); an activated carbon layer (21) is provided inside the wind box (13); a filter layer (22) is provided below the activated carbon layer (21); negative pressure fans (14) are connected to both sides of the wind box (13); an exhaust port (23) is provided on a side of the negative pressure fan (14) close to the machine body (1); and a soundproof cover (27) is provided on one side of the exhaust port (23).

5. The laser cutting machine for facilitating smoke exhaust according to claim 1, characterized in that: A water inlet (24) is provided on an inner wall of one side of the water tank (15), a water pump (16) is connected to the top of the water tank (15), a water pipe (10) on one side of the coolant tank (6) is connected to the water pump (16), and a water pipe (10) on the other side of the coolant tank (6) is connected to a water outlet (26).

6. The laser cutting machine for facilitating smoke exhaust according to claim 1, characterized in that: A numerical control plate (25) is provided on one side of the support beam (3).

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