CN216966568U

CN216966568U - Air guide device for cooling temperature of hearth of reflow soldering furnace

Info

Publication number: CN216966568U
Application number: CN202122913077.6U
Authority: CN
Inventors: 卢明; 马雪峰; 李占斌; 詹姆斯·内维尔; 大卫·海乐
Original assignee: Heller Shanghai Co ltd
Current assignee: Heller Shanghai Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-07-15
Anticipated expiration: 2031-11-25

Abstract

The utility model relates to an air guide device for cooling the temperature of a hearth of a reflow soldering furnace, which comprises an air blowing mechanism and a heat exhaust mechanism, wherein the air blowing mechanism is provided with an air suction motor and a blowing pipe connected with the air suction motor, the blowing pipe is provided with a plurality of openings, the plurality of openings respectively correspond to temperature areas in the hearth, the heat exhaust mechanism is arranged in the hearth and is provided with an exhaust motor, the air blowing mechanism sucks room-temperature gas, the room-temperature gas is blown into the hearth through the blowing pipe, and the exhaust motor exhausts hot air in the hearth into an exhaust pipeline of a factory. Compared with the prior art, the utility model has the advantages of quickly reducing the temperature of the hearth, avoiding influencing the working environment, along with high automation degree and the like.

Description

Air guide device for cooling temperature of hearth of reflow soldering furnace

Technical Field

The utility model relates to the technical field of reflow soldering furnaces, in particular to an air guide device for cooling the temperature of a hearth of a reflow soldering furnace.

Background

At the present stage, because the environment needs to be heated, the temperature of the whole reflow soldering furnace is higher in the working state, but the temperature of the hearth is expected to be rapidly cooled down when the machine is maintained or the product is replaced, so that some heating modules or heating mechanisms can be rapidly cooled down, and the equipment can be conveniently operated, maintained and maintained as soon as possible.

In order to reduce the temperature of the hearth in the prior art, the heating wires are usually closed to accelerate the rotating speed of the motor, so that the temperature inside the hearth is reduced in a natural convection state, the temperature of the hearth is reduced to a reasonable temperature of 60 ℃ usually by the method for more than 3 hours, and for a user, the temperature is reduced to the reasonable temperature in the shortest time, and only the hearth is opened to perform other related operations, but the operations can cause the leakage of various gases in the hearth, and the working environment can be seriously influenced because some harmful gases are not exhausted.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the air guide device for cooling the hearth temperature of the reflow soldering furnace, which can quickly reduce the hearth temperature, avoid influencing the working environment and avoid the degree of automation.

The purpose of the utility model can be realized by the following technical scheme:

an air guide device for cooling the temperature of a hearth of a reflow soldering furnace comprises an air blowing mechanism and a heat exhausting mechanism; the blowing mechanism is provided with an air suction motor and a blowing pipe connected with the air suction motor; the blowpipe is provided with a plurality of openings which respectively correspond to temperature zones in the hearth; the hot exhaust mechanism is arranged in the hearth and is provided with an exhaust motor; the blowing mechanism sucks room temperature gas, the room temperature gas is blown into the hearth through the blowing pipe, and the exhaust motor exhausts hot air in the hearth into an exhaust pipeline of a factory.

Preferably, the blowing mechanism is provided with an air pipe; the output port of the air suction motor is connected with the blowing pipe through an air pipe.

More preferably, the number of the blowpipes is several; the blowing mechanism is provided with a guide pipe, an input port of the guide pipe is connected with the air pipe, and a plurality of output ports are respectively connected with the blowing pipe.

More preferably, a butterfly valve is arranged on the air pipe.

More preferably, the butterfly valve is a pneumatic control butterfly valve.

More preferably, the pneumatic control butterfly valve is a high-temperature-resistant pneumatic control butterfly valve.

More preferably, the air suction motor and the air exhaust motor are both provided with a stalling alarm module; the butterfly valve is provided with an opening and closing position alarm module.

Preferably, the blowpipe is provided with a gas guide plate at the opening.

Preferably, the hot exhaust mechanism comprises an air suction box, an exhaust pipe and an exhaust connecting cylinder; the air suction box is arranged in the hearth; one end of the exhaust pipe is connected into the air suction box, and the other end of the exhaust pipe is connected into the exhaust motor; the output port of the air exhaust motor is connected to a factory air exhaust pipeline through an air exhaust connecting cylinder.

Preferably, the number of the air blowing mechanisms and the number of the hot air exhaust mechanisms are a plurality and are respectively arranged in the hearth.

Compared with the prior art, the utility model has the following beneficial effects:

firstly, rapidly reducing the temperature of a hearth: the air guide device guides the room temperature gas into the hearth through the large-flow motor, so that the temperature of the hearth is rapidly cooled.

Secondly, avoiding influencing the working environment: the air guide device is provided with the large-flow exhaust motor, so that hot air in the hearth can be quickly exhausted into the exhaust pipe, and the working environment is not influenced.

Thirdly, the automation degree is high: the air suction motor and the air exhaust motor are provided with motor stall alarm modules, and the butterfly valve is provided with an opening and closing position alarm module, so that the normal operation of the whole device can be ensured to the maximum extent.

Drawings

FIG. 1 is a schematic structural view of a blowing mechanism according to the present invention;

fig. 2 is a schematic structural view of the heat exhausting mechanism of the present invention.

The reference numbers in the figures indicate:

1. the air suction device comprises an air suction barrel, 2, an air suction motor, 3, a butterfly valve, 4, an air pipe, 5, a guide pipe, 6, a blowing pipe, 7, a guide plate, 8, an air suction box, 9, an exhaust pipe, 10, an exhaust motor, 11 and an exhaust connecting barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

The utility model provides an air ducting for cooling reflow soldering furnace temperature, as shown in figure 1 and figure 2, air ducting includes blast mechanism and hot exhaust mechanism, blast mechanism is equipped with induced draft motor 2 and the blowing pipe 6 that links to each other with induced draft motor 2, blowing pipe 6 is equipped with a plurality of opening, a plurality of opening corresponds the warm area in the furnace respectively, hot exhaust mechanism sets up in furnace, hot exhaust mechanism is equipped with exhaust motor 10, blast mechanism inhales the room temperature gas, blow in furnace with the room temperature gas through blowing pipe 6, exhaust motor 10 arranges the exhaust pipe of mill with the hot-blast in the furnace into.

As shown in fig. 1, the blower mechanism in this embodiment is provided with an air pipe 4, and the output port of the suction motor 2 is connected to a blower pipe 6 through the air pipe 4. The number of the blowpipes 6 is a plurality, the blowing mechanism is provided with a guide pipe 5, the input port of the guide pipe 5 is connected with the air pipe 4, and the output port is provided with a plurality of blowpipes 6 respectively. The air pipe 4 is provided with a butterfly valve 3.

The butterfly valve 3 in the embodiment adopts a high-temperature and high-heat resistant pneumatic control butterfly valve so as to be capable of bearing high-temperature gas in a hearth. The air suction motor 2 and the air exhaust motor 10 are both provided with a stalling alarm module, and the butterfly valve 3 is provided with an opening and closing position alarm module.

The opening of the blowpipe 6 is provided with a gas guide plate 7 so that the room temperature gas can be blown into each temperature zone of the hearth rapidly.

The structure of the hot air exhaust mechanism is shown in figure 2, and comprises an air suction box 8, an exhaust pipe 9 and an air exhaust connecting cylinder 11, wherein the air suction box 8 is arranged in a hearth, one end of the exhaust pipe 9 is connected into the air suction box 8, the other end of the exhaust pipe is connected into an air exhaust motor 10, and an output port of the air exhaust motor 10 is connected into an air exhaust pipeline of a factory through the air exhaust connecting cylinder 11.

The number of the blowing mechanisms and the number of the hot air exhaust mechanisms in the embodiment are a plurality of, the blowing mechanisms and the hot air exhaust mechanisms are respectively arranged in the hearth, and the specific number can be freely set according to actual conditions.

As shown in fig. 1 and fig. 2, the working principle of the air guiding device in this embodiment is as follows:

the air suction motor 2 sucks room temperature gas into the air pipe 4 through the air suction barrel 1, the butterfly valve 3 is closed when the furnace normally works, and is opened when the temperature of the furnace needs to be reduced. The gas in the intake air pipe 4 passes through the stand pipe 5 and gets into in the blast pipe 6, the blast pipe 6 sets up an opening at every warm area to the stove, opening outside installation deflector 7, can make room temperature gas inhale by the module that induced drafts of every warm area in the furnace fast, reduce the interior temperature of furnace fast, simultaneously because a large amount of room temperature gas get into furnace, make the steam in the original furnace can be excessive to furnace both sides, in order to guarantee that hot gas can be discharged fast, hot exhaust apparatus has been set up in furnace both sides, the box 8 that induced drafts absorbs excessive hot-blast, get into behind the exhaust motor 10 through exhaust pipe 9, discharge hot gas into exhaust connecting cylinder 11 through exhaust motor 10, discharge into factory exhaust system at last.

While the utility model has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An air guide device for cooling the temperature of a hearth of a reflow soldering furnace is characterized by comprising an air blowing mechanism and a heat exhausting mechanism; the blowing mechanism is provided with an air suction motor (2) and a blowing pipe (6) connected with the air suction motor (2); the blowing pipe (6) is provided with a plurality of openings which respectively correspond to temperature zones in the hearth; the hot exhaust mechanism is arranged in the hearth and is provided with an exhaust motor (10); the air blowing mechanism sucks room temperature gas, the room temperature gas is blown into the hearth through the air blowing pipe (6), and the hot air in the hearth is discharged into an exhaust pipeline of a factory through the exhaust motor (10).

2. The air guide device for cooling the hearth temperature of the reflow oven according to claim 1, wherein the air blowing mechanism is provided with an air pipe (4); the output port of the air suction motor (2) is connected with the blowing pipe (6) through the air pipe (4).

3. The air guide device for cooling the hearth temperature of the reflow oven according to claim 2, wherein the number of the blowpipes (6) is several; the blowing mechanism is provided with a guide pipe (5), the input port of the guide pipe (5) is connected with the air pipe (4), and the output ports are provided with a plurality of air outlets which are respectively connected with the blowing pipe (6).

4. The air guide device for cooling the hearth temperature of the reflow oven according to claim 2, wherein the air pipe (4) is provided with a butterfly valve (3).

5. Air guide device for cooling the hearth temperature of a reflow oven according to claim 4, characterized in that the butterfly valve (3) is a pneumatic control butterfly valve.

6. The air guide device for cooling the hearth temperature of the reflow oven according to claim 5, wherein the pneumatic control butterfly valve is a high temperature resistant pneumatic control butterfly valve.

7. The air guide device for cooling the hearth temperature of the reflow oven according to claim 4, wherein the air suction motor (2) and the air exhaust motor (10) are provided with stall warning modules; the butterfly valve (3) is provided with an opening and closing position alarm module.

8. The air guide device for cooling the hearth temperature of the reflow oven according to claim 1, wherein the blowpipe (6) is provided with a gas guide plate (7) at an opening.

9. The air guide device for cooling the hearth temperature of the reflow oven according to claim 1, wherein the heat exhaust mechanism comprises an air suction box (8), an exhaust duct (9) and an exhaust connecting cylinder (11); the air suction box (8) is arranged in the hearth; one end of the exhaust pipe (9) is connected into the air suction box (8), and the other end is connected into the exhaust motor (10); the output port of the exhaust motor (10) is connected to a factory exhaust pipeline through an exhaust connecting cylinder (11).

10. The air guide device for cooling the hearth temperature of the reflow oven according to claim 1, wherein the number of the air blowing mechanisms and the number of the hot air exhausting mechanisms are a plurality and are respectively arranged in the hearth.