Cooling device for laser cutting machine

Abstract

The utility model discloses a cooling device for a laser cutting machine, and relates to the technical field of cooling devices, the cooling device comprises a table plate, a cutting platform is arranged on the top surface of the table plate, a heat dissipation assembly is arranged in the cutting platform, the heat dissipation assembly comprises a heat pipe, a sealing cavity is formed in the heat pipe, the sealing cavity is filled with cooling liquid, and the cooling liquid is filled with cooling liquid. Heat dissipation ends are arranged at the two ends of the heat pipe; according to the heat dissipation device, the heat dissipation assembly is arranged, so that when a workpiece is cut, generated high temperature can be conducted into the heat pipe, cooling liquid evaporates and absorbs heat in the heat pipe, then rises to the heat dissipation end to be condensed, dissipated and liquefied, and slides back into the heat pipe along the inner wall of the heat dissipation end, the operation is repeated, and the heat dissipation device is achieved under the condition that electric appliances such as a water pump are not needed. And heat dissipation of the cutting platform is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a cooling device for a laser cutting machine. Background Art

[0002] Laser cutting technology, with its high precision and high efficiency, has been widely used in many industries such as metal, plastic and cloth. However, with the increase of laser cutting machine power and the extension of continuous working time, the heat generated also increases, which makes heat dissipation a key factor restricting the further improvement of laser cutting machine performance.

[0003] An existing Chinese patent (application number: CN202321151984.4) discloses a rapid cooling device for a laser cutting machine, comprising a workbench, on which a laser cutting machine is arranged, on which a laser cutting head housing is arranged, and on which a placement table located below the laser cutting machine is arranged. The placement table is filled with cooling water, and both sides of the placement table are respectively connected to a liquid distribution pipe and a liquid collecting pipe installed on the workbench, and the workbench is provided with a pre-cooling water tank located outside the laser cutting machine.

[0004] The above-mentioned cooling device needs to transport cooling water back and forth through a water pump, and then dissipate heat through the flow of cooling water. In the process of heat dissipation, it needs to consume additional electricity resources to dissipate heat, which undoubtedly increases the operating cost of the laser cutting device, and then increases the production cost of the workpiece. Therefore, the above-mentioned cooling device has the defect of high use cost.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The purpose of the utility model is to provide a cooling device for a laser cutting machine to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model provides a cooling device for a laser cutting machine, including a table top, a cutting platform is arranged on the top surface of the table top, a heat dissipation component is arranged inside the cutting platform, the heat dissipation component includes a heat pipe, a sealed cavity is opened inside the heat pipe, the sealed cavity is filled with coolant, and heat dissipation ends are arranged at both ends of the heat pipe.

[0008] Furthermore, the cutting platform is wavy in shape, with connecting openings on both sides. The heat pipe has two layers, which are respectively attached to the upper and lower surfaces of the cutting platform. The two ends of the two layers of heat pipes pass through the connecting openings and are connected together, and the connecting point is connected to the heat dissipation end.

[0009] Furthermore, there are multiple heat dissipation ends, which are arranged in a linear array, and the heat dissipation ends are also interconnected.

[0010] Furthermore, a positive blade fan and a reverse blade fan are arranged between the heat dissipation end and the cutting platform, and a plurality of the positive blade fans and the reverse blade fans are arranged, and the number of the positive blade fans and the reverse blade fans corresponds to the heat dissipation end.

[0011] Furthermore, support columns are arranged between the two layers of heat pipes. The support columns are arranged in a horizontal array in multiple rows, and each row is arranged in a vertical array in multiple rows.

[0012] Furthermore, an open cavity is opened at the inner center of the table top, one side of the open cavity is fixedly connected to one end of an airbag, the airbag is filled with hydrogen, the other end of the airbag is provided with a slider adapted to the open cavity, the other side of the open cavity is provided with an electric control switch, and the electric control switch is electrically connected to the positive blade fan and the reverse blade fan.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By setting up a heat dissipation component, the high temperature generated when the workpiece is cut will be conducted to the heat pipe, and the coolant will evaporate in the heat pipe to absorb heat, and then rise to the heat dissipation end to condense and dissipate heat to become liquefied, and then slide along the inner wall of the heat dissipation end back into the heat pipe, and repeat this process, without the need for electrical appliances such as water pumps, to achieve heat dissipation for the cutting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a cooling device for a laser cutting machine;

[0016] Figure 2 A schematic diagram of a shelling structure of a cooling device for a laser cutting machine;

[0017] Figure 3 The figure is a schematic diagram of the cross-sectional structure of a cooling device for a laser cutting machine.

[0018] In the figure: 1. table top; 101. opening cavity; 2. cutting platform; 3. heat pipe; 301. coolant; 302. heat dissipation end; 303. support column; 4. air bag; 401. electric control switch; 402. positive blade fan; 403. reverse blade fan. 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 1-3 The utility model provides a technical solution: a cooling device for a laser cutting machine, comprising a table top 1, a laser cutter head is arranged on one side of the table top 1, and the laser cutter head is a prior art, so it is not described in detail. A cutting platform 2 is arranged on the top surface of the table top 1, and a heat dissipation component is arranged inside the cutting platform 2. The heat dissipation component includes a heat pipe 3, and a sealed cavity is opened inside the heat pipe 3, and the sealed cavity is filled with a coolant 301. Heat dissipation ends 302 are arranged at both ends of the heat pipe 3. The cutting platform 2 is wavy and has connecting ports on both sides. The heat pipe 3 has two layers, which are respectively attached to the upper and lower surfaces of the cutting platform 2. The two ends of the two layers of heat pipes 3 pass through the connecting port and are gathered and connected. The connecting point is connected to the heat dissipation end 302. There are multiple heat dissipation ends 302, which are arranged in a linear array, and the heat dissipation ends 302 are also connected to each other.

[0021] By adopting the above design, when laser cutting is performed, the workpiece can be placed on the top surface of the cutting platform 2, and then the workpiece can be cut with a laser cutter head. When the cutting platform 2 absorbs a large amount of heat due to long-term cutting, the heat will be transferred to the heat pipe 3 because the heat pipe 3 is in close contact with the cutting platform 2. The cooling liquid 301 in the heat pipe 3 has a low boiling point and will vaporize and absorb heat after being heated. After evaporation, the cooling liquid 301 will rise to the heat dissipation end 302 because of its light weight. Since the heat dissipation end 302 is far away from the processing location and has a large contact area with the air, the temperature there is relatively low. When the cooling liquid 301 rises to the heat dissipation end 302, it will contact the inner wall of the heat dissipation end 302 and condense on the inner wall of the heat dissipation end 302. During the condensation process, the heat will be dissipated and then become liquid again. Then, under the influence of gravity, it will slide back to the heat pipe 3 along the inner wall of the heat dissipation end 302, and this will be repeated without the need for electrical appliances such as water pumps to achieve heat dissipation of the cutting platform 2.

[0022] Further, refer to Figure 1 and Figure 2 A positive blade fan 402 and a reverse blade fan 403 are arranged between the heat dissipation end 302 and the cutting platform 2. There are multiple positive blade fans 402 and reverse blade fans 403, and their numbers correspond to the heat dissipation end 302.

[0023] By adopting the above-mentioned design, when the positive blade fan 402 and the reverse blade fan 403 are in operation, the air can be guided to quickly pass through the heat dissipation end 302 and the top surface of the cutting platform 2, thereby taking away the heat thereon. Moreover, the guiding directions of the positive blade fan 402 and the reverse blade fan 403 are the same, and a unidirectional air duct can be formed, so that after the air takes away the heat, it will not return again, thereby further improving the heat dissipation effect of the device.

[0024] refer to Figure 3Furthermore, an opening cavity 101 is opened at the inner center of the table top 1, one side of the opening cavity 101 is fixedly connected to one end of the airbag 4, the airbag 4 is filled with hydrogen, and the other end of the airbag 4 is provided with a slider adapted to the opening cavity 101, and the other side of the opening cavity 101 is provided with an electric control switch 401, and the electric control switch 401 is electrically connected to the positive blade fan 402 and the reverse blade fan 403.

[0025] By adopting the above design, after the cutting platform 2 reaches a certain temperature, the airbag 4 in the opening cavity 101 will automatically expand due to the heat, and then resist and press the electric control switch 401. The electric control switch 401 will start the positive blade fan 402 and the reverse blade fan 403 electrically connected to it, so that the device uses natural wind for heat dissipation under normal conditions. After the temperature of the cutting platform 2 rises, in order to prevent the cutting platform 2 from being damaged due to high temperature, the positive blade fan 402 and the reverse blade fan 403 can be automatically turned on for auxiliary heat dissipation.

[0026] In addition, support columns 303 are arranged between the two layers of heat pipes 3. The support columns 303 are arranged in a horizontal array in multiple rows, and each row is arranged in a vertical array in multiple rows.

[0027] By adopting the above design, support can be provided for the upper heat pipe 3 to prevent it from collapsing due to the heavy coolant 301 inside.

[0028] Working principle:

[0029] When in use, the workpiece to be cut is placed on the top surface of the cutting platform 2, and then the laser cutting device can be started to cut the workpiece.

[0030] When the workpiece is cut, the high temperature generated will be conducted to the heat pipe 3. The cooling liquid 301 in the heat pipe 3 has a low boiling point. It will vaporize and absorb heat after being heated. After evaporation, it will rise to the heat dissipation end 302 because of its light weight. Since the heat dissipation end 302 is far away from the processing place and has a large contact area with the air, the temperature there is relatively low. When the cooling liquid 301 rises to the heat dissipation end 302, it will contact the inner wall of the heat dissipation end 302 and condense on the inner wall of the heat dissipation end 302. During the condensation process, the heat will be dissipated and then become liquid again. Then, under the influence of gravity, it will slide back to the heat pipe 3 along the inner wall of the heat dissipation end 302, and repeat this process. This is achieved without the help of electrical appliances such as water pumps, thereby realizing the heat dissipation of the cutting platform 2.

[0031] When the heat dissipation end 302 cannot dissipate heat well and the cutting platform 2 reaches a certain temperature, the airbag 4 in the opening cavity 101 will automatically expand due to the heat, and then resist and press the electric control switch 401. The electric control switch 401 will start the positive blade fan 402 and the reverse blade fan 403 electrically connected to it, so that the device uses natural wind for heat dissipation under normal circumstances. After the temperature of the cutting platform 2 rises, in order to prevent the cutting platform 2 from being damaged due to high temperature, the positive blade fan 402 and the reverse blade fan 403 can be automatically turned on for auxiliary heat dissipation.

Claims

1. A cooling device for a laser cutting machine, comprising a table top (1), a cutting platform (2) being arranged on the top surface of the table top (1), a heat dissipation component being arranged inside the cutting platform (2), characterized in that: The heat dissipation component comprises a heat pipe (3), a sealed cavity is provided inside the heat pipe (3), the sealed cavity is filled with cooling liquid (301), and heat dissipation ends (302) are provided at both ends of the heat pipe (3).

2. A cooling device for a laser cutting machine as claimed in claim 1, characterized in that: The cutting platform (2) is wavy in shape and has connecting openings on both sides. The heat pipe (3) has two layers, which are respectively attached to the upper and lower surfaces of the cutting platform (2). The two ends of the two layers of the heat pipe (3) pass through the connecting openings and are connected together, and the connecting point is connected to the heat dissipation end (302).

3. A cooling device for a laser cutting machine as claimed in claim 2, characterized in that: There are a plurality of heat dissipation ends (302), which are arranged in a linear array, and the heat dissipation ends (302) are also interconnected.

4. A cooling device for a laser cutting machine as claimed in claim 3, characterized in that: A positive blade fan (402) and a reverse blade fan (403) are arranged between the heat dissipation end (302) and the cutting platform (2), and a plurality of the positive blade fans (402) and the reverse blade fans (403) are arranged, and their number corresponds to the heat dissipation end (302).

5. A cooling device for a laser cutting machine as claimed in claim 4, characterized in that: Support columns (303) are arranged between the two layers of heat pipes (3); the support columns (303) are arranged in a horizontal array in multiple rows, and each row is arranged in a vertical array in multiple rows.

6. A cooling device for a laser cutting machine as claimed in claim 5, characterized in that: An open cavity (101) is provided at the inner center of the table top (1), one side of the open cavity (101) is fixedly connected to one end of an airbag (4), the airbag (4) is filled with hydrogen, the other end of the airbag (4) is provided with a slider adapted to the open cavity (101), the other side of the open cavity (101) is provided with an electric control switch (401), and the electric control switch (401) is electrically connected to a positive blade fan (402) and a reverse blade fan (403).

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