Laser engraving machine with efficient cooling laser head

Abstract

The utility model discloses a laser engraving machine with a laser head efficiently cooled, which comprises an engraving machine body, an engraving head arranged on the engraving machine body, a copper heat dissipation piece arranged at the bottom of the engraving head, heat dissipation holes arranged on the copper heat dissipation piece, heat dissipation fins arranged on the outer side of the copper heat dissipation piece, a nozzle arranged at the bottom of the copper heat dissipation piece and an installation piece arranged on the outer side of the engraving head. An air groove is formed in the bottom of the installation part, a copper cooling fin is arranged on the inner side of the air groove, an air box is arranged on the outer side of the air groove, a fan is arranged in the air box, and a water tank is arranged above the installation part. The heat dissipation holes and the heat dissipation fins enable the carving head to dissipate heat quickly, the circle of copper cooling fins are used for dissipating heat of the carving head, and the fan blows air into the air groove, so that the copper cooling fins are lowered quickly, the copper cooling fins continuously dissipate heat of the carving head, and hot air is exhausted through the air outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of laser engraving, in particular to a laser engraving machine with a laser head having high-efficiency cooling. Background Art

[0002] Laser engraving is based on numerical control technology and uses laser as the processing medium. The physical transformation of the processing material, which melts and vaporizes instantly under the irradiation of laser engraving, can achieve the purpose of laser engraving. Laser engraving machines can improve the efficiency of engraving, make the surface of the engraved part smooth and round, quickly reduce the temperature of the engraved non-metallic material, and reduce the deformation and internal stress of the engraved object. According to the different laser light sources, it can be divided into CO2 non-metallic laser engraving machines and optical fiber metal engraving machines.

[0003] The laser in the existing laser engraving machine is its core. The laser is very sensitive to temperature, so it has very high requirements for heat dissipation. The laser cutting head will generate a lot of heat during use. The existing laser engraving machine can only cool its nozzle, but cannot cool the entire laser head. As a result, the laser head is greatly damaged during use and is not convenient for long-term use. Utility Model Content

[0004] The utility model aims to provide a laser engraving machine with efficient cooling of the laser head, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A laser engraving machine with efficient cooling of the laser head comprises an engraving machine body, an engraving head is arranged on the engraving machine body, a copper heat sink is arranged at the bottom of the engraving head, heat dissipation holes are arranged on the copper heat sink, heat dissipation fins are arranged on the outer side of the copper heat sink, a nozzle is arranged at the bottom of the copper heat sink, a mounting piece is arranged at the outer side of the engraving head, an air groove is arranged at the bottom of the mounting piece, a copper heat sink is arranged inside the air groove, a bellows is arranged outside the air groove, a fan is arranged inside the bellows, a water tank is arranged above the mounting piece, and the water tank is filled with coolant.

[0007] In a preferred embodiment of the present utility model, a first screw strip is arranged at the top of the nozzle, a first screw groove is arranged at the bottom of the copper heat sink, and the first screw strip is threadedly connected to the first screw groove.

[0008] In a preferred embodiment of the present utility model, a second screw strip is disposed on the top of the copper heat sink, a second screw groove is disposed on the bottom of the engraving head, and the second screw strip is threadedly connected to the second screw groove.

[0009] In a preferred embodiment of the utility model, a mounting plate is arranged on the top of the engraving machine body, a threaded strip is arranged on the outer side of the bottom of the mounting plate, a threaded groove is arranged on the inner side of the top of the mounting piece, and the threaded groove is threadedly connected to the threaded strip.

[0010] In a preferred embodiment of the present utility model, an air outlet is arranged at the top of the air slot, and an air inlet is arranged at one side of the air slot.

[0011] In a preferred embodiment of the present utility model, a filter screen is provided on one side of the bellows, and an air inlet is provided on the other side of the bellows, and the air inlet is connected to the air inlet.

[0012] In a preferred embodiment of the utility model, a threaded opening is provided on one side of the water tank, a threaded plug is provided on the threaded opening, and the threaded plug is threadedly connected to the threaded opening.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0014] Beneficial effects: When the engraving machine is in use, the temperature of the nozzle and the bottom of the engraving head is absorbed by the copper heat sink, thereby reducing the temperature, and the heat is quickly dissipated through the heat dissipation holes and heat dissipation fins. The engraving head is cooled by a circle of copper heat sinks, and air is blown into the wind slot by a fan, thereby quickly lowering the copper heat sink, so that it continuously dissipates heat to the engraving head, and the hot air is discharged through the air outlet. The coolant filled in the water tank increases its cooling speed.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of the main structure of a laser engraving machine with efficient cooling of the laser head;

[0018] Figure 2 A schematic diagram of the outer structure of an engraving head in a laser engraving machine with efficient cooling of the laser head;

[0019] Figure 3 A schematic diagram of the connection structure of a copper heat sink in a laser engraving machine for efficient cooling of the laser head;

[0020] Figure 4 It is a schematic diagram of the structure of a mounting part in a laser engraving machine with efficient cooling of the laser head;

[0021] Figure 5 The figure is a schematic diagram of the bellows structure of a laser engraving machine for efficient cooling of the laser head.

[0022] In the figure: 1. engraving machine body; 11. engraving head; 12. nozzle; 13. first screw strip; 14. second screw groove; 15. mounting plate; 2. copper heat sink; 21. heat dissipation hole; 22. heat dissipation fin; 23. first screw groove; 24. second screw strip; 3. mounting part; 31. threaded groove; 32. copper heat sink; 33. wind slot; 34. air outlet; 35. air inlet; 4. water sink; 41. threaded port; 42. threaded plug; 43. threaded strip; 5. bellows; 51. fan; 52. air inlet; 53. filter. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Please refer to Figure 1-5 The utility model discloses a laser engraving machine with efficient cooling of a laser head, comprising an engraving machine body 1, which is the whole of the laser engraving machine. An engraving head 11 is arranged on the engraving machine body 1, and the engraving head 11 is the main structure of the laser engraving machine, that is, a laser head, which is used to engrave objects. A copper heat sink 2 is arranged at the bottom of the engraving head 11, and a heat dissipation hole 21 is arranged on the copper heat sink 2. Heat dissipation fins 22 are arranged on the outer side of the copper heat sink 2, and a nozzle 12 is arranged at the bottom of the copper heat sink 2. The engraving head 11 performs laser engraving through the nozzle 12, that is, when engraving, the temperature of the nozzle 12 will increase, that is, the temperature of the nozzle 12 and the bottom of the engraving head 11 is absorbed by the copper heat sink 2, thereby reducing the temperature of the nozzle 12 and the bottom of the engraving head 11, and the heat is quickly dissipated through the heat dissipation hole 21 and the heat dissipation fins 22, so that the heat dissipation is more durable.

[0025] A mounting member 3 is provided on the outside of the engraving head 11. The mounting member 3 is a mounting structure and covers the outside of the engraving head 11. A mounting plate 15 is provided on the top of the engraving machine body 1. A threaded strip 43 is provided on the outside of the bottom of the mounting plate 15. A threaded groove 31 is provided on the inside of the top of the mounting member 3. The threaded groove 31 is threadedly connected to the threaded strip 43, that is, the threaded strip 43 is connected through the threaded groove 31, so that the mounting member 3 is installed on the outside of the engraving head 11. A first screw strip 13 is provided on the top of the nozzle 12. A first screw groove 23 is provided on the bottom of the copper heat sink 2. The first screw strip 13 is threadedly connected to the first screw groove 23, that is, the first screw groove 23 is connected through the first screw strip 13, so that the nozzle 12 is connected to the copper heat sink 2. A second screw strip 24 is provided on the top of the copper heat sink 2. A second screw strip 24 is provided on the bottom of the engraving head 11. The second screw strip 24 is threadedly connected to the second screw groove 14, and the second screw strip 24 is connected to the second screw groove 14 through the second screw strip 24, so that the bottom of the engraving head 11 is connected to the copper heat sink 2.

[0026] The bottom of the mounting part 3 is provided with an air slot 33, and a copper heat sink 32 is provided inside the air slot 33. The engraving head 11 is cooled by a circle of copper heat sink 32. A bellows 5 is provided outside the air slot 33, and a fan 51 is provided inside the bellows 5. An air outlet 34 is provided at the top of the air slot 33. An air inlet 35 is provided on one side of the air slot 33. A filter screen 53 is provided on one side of the bellows 5, and an air inlet 52 is provided on the other side of the bellows 5. That is, the air inlet 35 is connected through the air inlet 52, so that the fan 51 blows air into the air slot 33, thereby quickly reducing the copper The heat sink 32 continuously dissipates heat for the engraving head 11, and the hot air is discharged through the air outlet 34. The filter 53 on the outside blocks impurities. A water tank 4 is arranged above the mounting part 3, and the water tank 4 is filled with coolant. A threaded opening 41 is arranged on one side of the water tank 4, and a threaded plug 42 is arranged on the threaded opening 41. The threaded plug 42 is threadedly connected to the threaded opening 41, that is, the threaded opening 41 is opened and closed by the threaded plug 42, and the coolant is replaced at the threaded opening 41, that is, the cooling speed is increased by the coolant filled in the water tank 4.

[0027] The working principle of the utility model is as follows: the threaded strip 43 is connected through the threaded groove 31, so that the mounting member 3 is installed on the outside of the engraving head 11, the first screw strip 13 is connected to the first screw groove 23, and the second screw strip 24 is connected to the second screw groove 14, so that the bottom of the engraving head 11 is connected to the copper heat sink 2, and the water tank 4 is filled with coolant at the threaded port 41, and the threaded port 41 is closed by the threaded plug 42. When in use, the engraving head 11 performs laser engraving through the nozzle 12, and the nozzle 12 is connected to the copper heat sink 2. The temperature of the bottom of the engraving head 11 is absorbed, thereby reducing the temperature of the nozzle 12 and the bottom of the engraving head 11, and the heat is quickly dissipated through the heat dissipation holes 21 and the heat dissipation fins 22, so that the heat dissipation is more lasting, and the engraving head 11 is cooled by a circle of copper heat sinks 32, and the air inlet 35 is connected through the air inlet 52, so that the fan 51 blows air into the wind slot 33, thereby quickly reducing the copper heat sink 32, so that it can continuously dissipate heat for the engraving head 11, and the hot air is discharged through the air outlet 34. The coolant filled in the water tank 4 increases its cooling speed.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A laser engraving machine with efficient cooling of a laser head, comprising an engraving machine body (1), Features: The engraving machine body (1) is provided with an engraving head (11), a copper heat sink (2) is provided at the bottom of the engraving head (11), a heat dissipation hole (21) is provided on the copper heat sink (2), a heat dissipation fin (22) is provided on the outside of the copper heat sink (2), a nozzle (12) is provided at the bottom of the copper heat sink (2), a mounting member (3) is provided on the outside of the engraving head (11), a wind groove (33) is provided at the bottom of the mounting member (3), a copper heat sink (32) is provided on the inside of the wind groove (33), a bellows (5) is provided on the outside of the wind groove (33), a fan (51) is provided inside the bellows (5), and a water tank (4) is provided above the mounting member (3), and a coolant is filled inside the water tank (4).

2. A laser engraving machine with efficient cooling of the laser head according to claim 1, It is characterized in that A first screw strip (13) is provided at the top of the nozzle (12), a first screw groove (23) is provided at the bottom of the copper heat sink (2), and the first screw strip (13) and the first screw groove (23) are threadedly connected.

3. A laser engraving machine with efficient cooling of the laser head according to claim 1, It is characterized in that A second screw thread (24) is provided on the top of the copper heat sink (2), a second screw groove (14) is provided on the bottom of the engraving head (11), and the second screw thread (24) is threadedly connected to the second screw groove (14).

4. A laser engraving machine with efficient cooling of the laser head according to claim 1, It is characterized in that A mounting plate (15) is arranged on the top of the engraving machine body (1), a threaded strip (43) is arranged on the outside of the bottom of the mounting plate (15), a threaded groove (31) is arranged on the inside of the top of the mounting member (3), and the threaded groove (31) is threadedly connected to the threaded strip (43).

5. A laser engraving machine with efficient cooling of the laser head according to claim 1, It is characterized in that An air outlet (34) is provided at the top of the air slot (33), and an air inlet (35) is provided at one side of the air slot (33).

6. A laser engraving machine with efficient cooling of the laser head according to claim 5, It is characterized in that A filter screen (53) is provided on one side of the wind box (5), and an air inlet (52) is provided on the other side of the wind box (5), wherein the air inlet (52) is connected to the air inlet (35).

7. A laser engraving machine with efficient cooling of the laser head according to claim 1, It is characterized in that A threaded opening (41) is provided on one side of the water tank (4), a threaded plug (42) is provided on the threaded opening (41), and the threaded plug (42) is threadedly connected to the threaded opening (41).

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