Electromagnetic wire paint film baking machine

Abstract

The utility model belongs to the technical field of paint film drying, and particularly relates to an electromagnetic wire paint film baking machine which comprises a baking box, an air inlet and an air outlet are formed in the top of the baking box, a glacial acetic acid storage tank is fixedly connected to the outer side of the baking box, and absorption assemblies are installed on the glacial acetic acid storage tank, the glacial acetic acid storage tank and the baking box. Gas in the baking box is extracted through the negative pressure fan and guided into a glacial acetic acid solution through the guide pipe, the glacial acetic acid solution and the gas are fully fused, benzene compounds such as methylbenzene in the gas are absorbed, the glacial acetic acid storage tank is installed outside the baking box, the temperature of glacial acetic acid can be effectively reduced, evaporation of the glacial acetic acid is reduced, and the production efficiency is improved. Glacial acetic acid is fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of paint film drying, in particular to an electromagnetic wire paint film baking machine. Background Art

[0002] Baking chamber, also known as drying box, is often used to dry various polymer materials that can withstand high temperatures. Baking machines can be seen in resin curing, pharmaceuticals, paint, electronics, electroplating and other industries. Baking machines are generally made of steel and thin plates and then welded to form a relatively sealed environment. The baking chamber is heated and dried by a heater. A thermal insulation layer with good insulation properties is filled between the working room and the box shell to reduce heat loss. Some baking chambers are equipped with a blast device and an air duct is installed between the box shell and the working room to improve the temperature balance in the box and the air renewal during operation.

[0003] The conventional design of the baking machine used for baking electromagnetic wire paint film is relatively simple in structure, easy to use and low in price. However, in the process of baking the paint film, toluene and other benzene compounds will be produced. These compounds will continue to accumulate in the baking chamber as the drying progresses. These toluene and other benzene compounds will vaporize at high temperatures and are prone to deflagration under the action of high-temperature expansion. At the end of the drying process, once the chamber door is opened, the gas of toluene and other benzene compounds will leak out. Toluene and other benzene compounds are a Class III carcinogen, which can cause serious harm to the human body if inhaled.

[0004] The existing Chinese patent with the announcement number CN112246573B discloses an electromagnetic wire paint film baking machine, including a baking chamber, door shafts are fixedly installed at both ends of the front of the baking chamber, the door shaft includes a door shaft frame, the circular through hole on the back of the door shaft frame is connected to the circular through hole on the front of the baking chamber, the top of the door shaft frame is provided with a circular through hole, and the circular through hole extends from the top of the door shaft frame to the bottom, and both sides of the inner wall of the circular through cylinder at the top of the door shaft are fixedly installed with movable devices. The gas in the baking chamber will flow into the exhaust pipe along the through hole in the door shaft.

[0005] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device places glacial acetic acid inside the baking chamber, which evaporates quickly due to the heat and is discharged through the exhaust pipe. The utilization efficiency of the glacial acetic acid is not high, and more glacial acetic acid is required, which increases the cost and needs to be improved. Therefore, an electromagnetic wire paint film baking machine is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model provides an electromagnetic wire paint film baking machine.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the electromagnetic wire paint film baking machine described in the utility model includes a baking box, the top of the baking box is provided with an air inlet and an air outlet, the outer side of the baking box is fixedly connected with a glacial acetic acid storage tank, the glacial acetic acid storage tank is made of transparent material, the glacial acetic acid storage tank, the glacial acetic acid storage tank and the baking box are equipped with an absorption component, the absorption component includes a cover body and a reflux pipe, the cover body is fixedly installed on the surface of the baking box corresponding to the air inlet, the inside of the cover body is fixedly connected with a negative pressure fan, and the top of the cover body is fixed A conduit is connected, the other end of which passes through and extends to the interior of the glacial acetic acid storage tank, one end of the reflux pipe is fixedly installed on the top of the glacial acetic acid storage tank, and the other end of the reflux pipe is fixedly connected to the air outlet, the electromagnetic wire is placed inside the baking oven for paint film baking, the gas inside the baking oven is extracted by a negative pressure fan and introduced into the glacial acetic acid solution through the conduit, so that the glacial acetic acid solution and the gas are fully dissolved, and benzene compounds such as toluene in the gas are absorbed, and the glacial acetic acid storage tank is installed outside the baking oven, which can effectively reduce the temperature of the glacial acetic acid, reduce the evaporation of the glacial acetic acid, and make full use of the glacial acetic acid.

[0008] Preferably, a filter is fixedly connected to the reflux pipe, and after the gas is absorbed by the glacial acetic acid solution, it flows back to the inside of the baking oven through the reflux pipe to form a circulating flow, and the gas can be secondary filtered through the filter to further remove harmful gases in the gas.

[0009] Preferably, a one-way valve and an electric pressure relief valve are installed on the reflux pipe, and the internal pressure of the baking oven is detected by a pressure sensor. When the pressure is high, the electric pressure relief valve is controlled to open for pressure relief, thereby discharging the filtered gas and reducing the problem of excessive pressure in the baking oven due to heating. During pressure relief, the high pressure inside the baking oven pushes the one-way valve to close, thereby reducing the outflow of gas from the baking oven.

[0010] Preferably, an air pressure sensor is fixedly connected to the baking oven, and the air pressure sensor is electrically connected to the electric pressure relief valve.

[0011] Preferably, a liquid adding assembly is installed on the glacial acetic acid storage tank, and the liquid adding assembly includes a liquid adding end, and the liquid adding end is fixedly installed on the top of the glacial acetic acid storage tank.

[0012] Preferably, the liquid adding end is connected to a glacial acetic acid adding pump via a pipeline, and a solenoid valve is installed on the liquid adding end, and the solenoid valve is closed to prevent gas from being discharged from the liquid adding end.

[0013] Preferably, the liquid adding component also includes a liquid level sensor, which is fixedly connected to the glacial acetic acid storage tank, and is electrically connected to the solenoid valve and the adding pump. The amount of glacial acetic acid solution inside the glacial acetic acid storage tank is detected by the liquid level sensor. When the glacial acetic acid solution is low, the liquid level sensor controls the movement of the solenoid valve and the adding pump, and then automatically adds glacial acetic acid solution through the adding pump.

[0014] Preferably, a cooling copper tube is fixedly connected to the interior of the glacial acetic acid storage tank, and both ends of the cooling copper tube pass through the glacial acetic acid storage tank and extend to the outside. The condenser or cooling water pump is connected through the cooling copper tube, and cold air or cooling water is introduced through the circulation of the two to lower the temperature of the glacial acetic acid solution and further reduce evaporation.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model uses a negative pressure fan to draw the gas inside the baking oven and introduces it into the glacial acetic acid solution through a conduit, so that the glacial acetic acid solution and the gas are fully dissolved and the benzene compounds such as toluene in the gas are absorbed. The glacial acetic acid storage tank is installed outside the baking oven, which can effectively reduce the temperature of the glacial acetic acid, reduce the evaporation of the glacial acetic acid, and make full use of the glacial acetic acid.

[0017] 2. The utility model detects the amount of glacial acetic acid solution inside the glacial acetic acid storage tank through a liquid level sensor. When the glacial acetic acid solution is low, the liquid level sensor controls the movement of the solenoid valve and the adding pump, and then automatically adds glacial acetic acid solution through the adding pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of a glacial acetic acid storage tank of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the absorption component of the utility model;

[0022] Figure 4 For this utility model Figure 3 A structural diagram of ;

[0023] Figure 5 This is a schematic diagram of the structure of the liquid adding component of the utility model.

[0024] In the figure: 1. baking oven; 2. air inlet; 3. air outlet; 4. glacial acetic acid storage tank; 5. absorption component; 51. cover; 52. return pipe; 53. negative pressure fan; 54. conduit; 55. filter; 56. one-way valve; 57. electric pressure relief valve; 6. air pressure sensor; 7. liquid adding component; 71. liquid adding end; 72. solenoid valve; 73. liquid level sensor; 74. cooling copper tube. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1

[0027] See also Figure 1-4 As shown, an electromagnetic wire paint film baking machine includes a baking box 1, an air inlet 2 and an air outlet 3 are opened on the top of the baking box 1, a glacial acetic acid storage tank 4 is fixedly connected to the outside of the baking box 1, the glacial acetic acid storage tank 4, an absorption component 5 is installed on the glacial acetic acid storage tank 4 and the baking box 1, and the absorption component 5 includes a cover body 51 and a return pipe 52, the cover body 51 is fixedly installed on the surface of the baking box 1 corresponding to the air inlet 2, the inside of the cover body 51 is fixedly connected to a negative pressure fan 53, the top of the cover body 51 is fixedly connected to a conduit 54, and the other end of the conduit 54 passes through and extends to the glacial acetic acid storage tank 4. Inside the acid storage tank 4, one end of the reflux pipe 52 is fixedly installed on the top of the glacial acetic acid storage tank 4, and the other end of the reflux pipe 52 is fixedly connected to the air outlet 3. The electromagnetic wire is placed inside the baking oven 1 to bake the paint film. The gas inside the baking oven 1 is extracted by the negative pressure fan 53 and introduced into the glacial acetic acid solution through the conduit 54, so that the glacial acetic acid solution and the gas are fully dissolved and the benzene compounds such as toluene in the gas are absorbed. The glacial acetic acid storage tank 4 is installed outside the baking oven 1, which can effectively reduce the temperature of the glacial acetic acid, reduce the evaporation of the glacial acetic acid, and make full use of the glacial acetic acid.

[0028] A filter 55 is fixedly connected to the reflux pipe 52. After being absorbed by the glacial acetic acid solution, the gas flows back to the inside of the baking oven 1 through the reflux pipe 52 to form a circulation flow, and the gas can be secondary filtered through the filter 55 to further remove harmful gases in the gas.

[0029] A one-way valve 56 and an electric pressure relief valve 57 are installed on the reflux pipe 52. The pressure inside the baking oven 1 is detected by the air pressure sensor 6. When the pressure is high, the electric pressure relief valve 57 is controlled to open for pressure relief to discharge the filtered gas, thereby reducing the problem of excessive pressure inside the baking oven 1 caused by heating. During pressure relief, the high pressure inside the baking oven 1 pushes the one-way valve 56 to close, thereby reducing the outflow of gas from the baking oven 1.

[0030] An air pressure sensor 6 is fixedly connected to the baking oven 1 , and the air pressure sensor 6 is electrically connected to the electric pressure relief valve 57 .

[0031] Embodiment 2

[0032] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, a liquid adding assembly 7 is installed on the glacial acetic acid storage tank 4, and the liquid adding assembly 7 includes a liquid adding end 71, and the liquid adding end 71 is fixedly installed on the top of the glacial acetic acid storage tank 4.

[0033] The liquid adding end 71 is connected to a glacial acetic acid adding pump through a pipeline, and a solenoid valve 72 is installed on the liquid adding end 71 . The solenoid valve 72 is closed to prevent gas from being discharged from the liquid adding end 71 .

[0034] The liquid adding component 7 also includes a liquid level sensor 73, which is fixedly connected to the glacial acetic acid storage tank 4. The liquid level sensor 73 is electrically connected to the solenoid valve 72 and the adding pump. The amount of glacial acetic acid solution inside the glacial acetic acid storage tank 4 is detected by the liquid level sensor 73. When the glacial acetic acid solution is low, the liquid level sensor 73 controls the movement of the solenoid valve 72 and the adding pump, and then automatically adds glacial acetic acid solution through the adding pump.

[0035] A cooling copper tube 74 is fixedly connected to the interior of the glacial acetic acid storage tank 4. Both ends of the cooling copper tube 74 pass through the glacial acetic acid storage tank 4 and extend to the outside. The condenser or cooling water pump is connected through the cooling copper tube 74. Cold air or cooling water is introduced through the circulation of the two to lower the temperature of the glacial acetic acid solution and further reduce evaporation.

[0036] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0037] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art.

[0038] Working principle: the electromagnetic wire is placed inside the baking oven 1 to bake the paint film, the gas inside the baking oven 1 is extracted by the negative pressure fan 53 and introduced into the glacial acetic acid solution through the conduit 54, so that the glacial acetic acid solution and the gas are fully dissolved and the toluene and other benzene compounds in the gas are absorbed, and the glacial acetic acid storage tank 4 is installed outside the baking oven 1, which can effectively reduce the temperature of the glacial acetic acid, reduce the evaporation of the glacial acetic acid, and make full use of the glacial acetic acid.

[0039] The pressure inside the baking oven 1 is detected by the air pressure sensor 6. When the pressure is high, the electric pressure relief valve 57 is controlled to open for pressure relief, and the filtered gas is discharged, thereby reducing the problem of excessive pressure inside the baking oven 1 caused by heating. During pressure relief, the high pressure inside the baking oven 1 pushes the one-way valve 56 to close, thereby reducing the outflow of gas inside the baking oven 1.

[0040] The amount of glacial acetic acid solution in the glacial acetic acid storage tank 4 is detected by the liquid level sensor 73. When the amount of glacial acetic acid solution is low, the liquid level sensor 73 controls the movement of the solenoid valve 72 and the adding pump, and then the glacial acetic acid solution is automatically added through the adding pump.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An electromagnetic wire paint film baking machine, comprising a baking box (1), characterized in that: The top of the baking oven (1) is provided with an air inlet (2) and an air outlet (3); the outer side of the baking oven (1) is fixedly connected to a glacial acetic acid storage tank (4); the glacial acetic acid storage tank (4) is made of a transparent material; an absorption component (5) is installed on the glacial acetic acid storage tank (4) and the baking oven (1); the absorption component (5) comprises a cover body (51) and a return pipe (52); the cover body (51) is fixedly installed on the surface of the baking oven (1) at a position corresponding to the air inlet (2); the inside of the cover body (51) is fixedly connected to a negative pressure fan (53); the top of the cover body (51) is fixedly connected to a conduit (54); the other end of the conduit (54) penetrates and extends to the inside of the glacial acetic acid storage tank (4); one end of the return pipe (52) is fixedly installed on the top of the glacial acetic acid storage tank (4), and the other end of the return pipe (52) is fixedly connected to the air outlet (3).

2. The electromagnetic wire paint film baking machine according to claim 1, characterized in that: The reflux pipe (52) is fixedly connected to a filter (55).

3. The electromagnetic wire paint film baking machine according to claim 1, characterized in that: A one-way valve (56) and an electric pressure relief valve (57) are installed on the return pipe (52).

4. The electromagnetic wire paint film baking machine according to claim 1, characterized in that: An air pressure sensor (6) is fixedly connected to the baking oven (1).

5. The electromagnetic wire paint film baking machine according to claim 1, characterized in that: A liquid adding assembly (7) is installed on the glacial acetic acid storage tank (4), and the liquid adding assembly (7) comprises a liquid adding end (71), and the liquid adding end (71) is fixedly installed on the top of the glacial acetic acid storage tank (4).

6. The electromagnetic wire paint film baking machine according to claim 5, characterized in that: The liquid adding end (71) is connected to a glacial acetic acid adding pump via a pipeline, and a solenoid valve (72) is installed on the liquid adding end (71).

7. The electromagnetic wire paint film baking machine according to claim 5, characterized in that: The liquid adding assembly (7) further comprises a liquid level sensor (73), and the liquid level sensor (73) is fixedly connected to the glacial acetic acid storage tank (4).

8. The electromagnetic wire paint film baking machine according to claim 1, characterized in that: A cooling copper tube (74) is fixedly connected to the interior of the glacial acetic acid storage tank (4), and both ends of the cooling copper tube (74) penetrate the glacial acetic acid storage tank (4) and extend to the outside.

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