Circulating air duct device for thermocuring furnace

Abstract

The utility model relates to the field of thermocuring and discloses a circulating air duct device for a thermocuring oven, which comprises a curing oven main body, the inner wall of the curing oven main body is fixedly connected with a temperature sensor, the inside of the curing oven main body is fixedly connected with an air feeder, and the inside of the curing oven main body is fixedly connected with an air direction adjusting device. A motor base is welded to the interior of the curing oven body, a telescopic motor is fixedly connected to the motor base, a controller is fixedly connected to the motor base, a telescopic push rod of the telescopic motor is in threaded connection with a supporting frame, the other end of the supporting frame is fixedly connected with a bottom beam, and one side of the bottom beam is movably connected with a blade support. And the other end of the blade bracket is fixedly connected with a blade. According to the circulating air duct device for the thermocuring furnace, by arranging the multi-area temperature sensor and the air direction adjusting device, the temperature and air flow distribution of all parts can be accurately adjusted and controlled, and it is ensured that workpieces are evenly heated.

Description

Technical Field

[0001] This utility model relates to the field of thermosetting technology, specifically to a circulating air duct device for a thermosetting oven. Background Technology

[0002] In the industrial production field, after many workpieces have completed surface treatment processes such as painting and powder coating, they need to be cured in a thermosetting oven to ensure that the coating adheres firmly to the workpiece surface, thereby improving product quality and durability. The air circulation system inside the thermosetting oven plays a decisive role in the curing effect of the workpiece.

[0003] Most circulating air duct devices for thermosetting ovens on the market currently suffer from dead airflow and are unable to provide directional heating to specific areas, resulting in uneven heating of workpieces and poor curing quality, which makes it difficult to meet the needs of high-quality industrial production. Therefore, a circulating air duct device for thermosetting ovens is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a circulating air duct device for a thermosetting oven, which has the advantages of uniform heating and directional heating in special areas, and solves the problem of dead airflow in the curing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circulating air duct device for a thermosetting oven, comprising a curing oven body, a curing chamber inside the curing oven body, a return air inlet at the top of the curing chamber, a return air duct connected to the top of the return air inlet, a return air fan fixedly connected inside the return air duct, a dehumidifier fixedly connected inside the return air duct, an air inlet valve connected to the lower end of the return air duct, an air filter screen snapped into the inside of the return air duct, and a heating tube fixedly connected to the tail end of the return air duct;

[0006] Preferably, a hot air blower is fixedly connected inside the curing oven body, a temperature sensor is fixedly connected to the inner wall of the curing oven body, a blower is fixedly connected inside the curing oven body, an airflow adjustment device is fixedly connected inside the curing oven body, a motor base is welded inside the curing oven body, a telescopic motor is fixedly connected to the motor base, a controller is fixedly connected to the motor base, a support frame is threadedly connected to the telescopic push rod of the telescopic motor, a bottom beam is fixedly connected to the other end of the support frame, a blade bracket is movably connected to one side of the bottom beam, and a blade is fixedly connected to the other end of the blade bracket.

[0007] Preferably, the telescopic motor has two threaded support frames, one end of which is fixedly connected to the telescopic push rod of the telescopic motor, and the other end is fixedly connected to the bottom beam at the top and bottom respectively.

[0008] Preferably, a sliding tongue is welded onto the bottom beam, and a sliding groove is provided on the blade support, with the sliding tongue slidably connected to the sliding groove.

[0009] Preferably, the blade support is provided with a circular groove, and a support fixing rod is rotatably connected inside the circular groove.

[0010] Preferably, the number of temperature sensors is four, the number of hot air blowers is three, and the number of air blowers is one. The temperature sensors are arranged in pairs with the hot air blowers and the air blowers, and are respectively arranged in the four corners of the curing chamber.

[0011] Preferably, the heating tube is arranged in a serpentine pattern, located at the tail end of the return air duct and on the right side of the blower.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This thermosetting oven uses a circulating air duct device. By setting up an angle adjustment device and a temperature sensor, when the sensor detects that the temperature of the current area has reached the set value, the microcontroller sends a command to the controller to change the operation of the telescopic motor, thereby driving the fan blades to rotate and blow hot air to the lower temperature area, changing the airflow direction. This allows for precise control of the temperature and airflow distribution of each part, ensuring uniform heating of the workpiece and directional heating of dead corner areas, effectively improving the curing quality. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention;

[0015] Figure 2 This is an external structural diagram of the wind direction adjustment device of this utility model;

[0016] Figure 3 This is a partial sectional view of the blade support of this utility model.

[0017] In the diagram: 1. Curing oven body; 2. Curing chamber; 3. Return air inlet; 4. Return air duct; 5. Return air fan; 6. Dehumidifier; 7. Inlet valve; 8. Air filter; 9. Heating element; 10. Blower; 11. Air direction adjustment device; 111. Motor base; 112. Telescopic motor; 113. Support frame; 114. Sliding tongue; 115. Blade support; 116. Blade; 117. Bottom beam; 118. Support fixing rod; 119. Slide groove; 120. Controller; 12. Temperature sensor; 13. Hot air blower; 14. Microcontroller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 A circulating air duct device for a thermosetting oven in this embodiment includes a curing oven body 1, a curing chamber 2 inside the curing oven body 1, a return air inlet 3 on the top of the curing chamber 2, a return air duct 4 connected to the top of the return air inlet 3, a return air fan 5 fixedly connected inside the return air duct 4, a dehumidifier 6 fixedly connected inside the return air duct 4, an air inlet valve 7 connected to the lower end of the return air duct 4, an air filter 8 snapped into the inside of the return air duct 4, and a heating tube 9 fixedly connected to the tail end of the return air duct 4.

[0020] A hot air blower 13 is fixedly connected inside the curing oven body 1. A temperature sensor 12 is fixedly connected to the inner wall of the curing oven body 1. A blower 10 is fixedly connected inside the curing oven body 1 to drive airflow circulation, promote uniform heat distribution, and achieve forced convection heat exchange in conjunction with the hot air blower 13. An airflow adjustment device 11 is fixedly connected inside the curing oven body 1. A motor base 111 is welded inside the curing oven body 1 to provide a stable installation platform for the motor and controller 120 and to isolate the influence of motor vibration on the oven body. A telescopic motor 112 is fixedly connected to the motor base 111. A controller 120 is fixedly connected to the motor base 111. A support frame 113 is threadedly connected to the telescopic push rod of the telescopic motor 112. A bottom beam 117 is fixedly connected to the other end of the support frame 113, which links all blades 116 to move synchronously. A blade support 115 is movably connected to one side of the bottom beam 117. A blade 116 is fixedly connected to the other end of the blade support 115.

[0021] The telescopic motor 112 has two threaded support frames 113. One end is fixedly connected to the telescopic push rod of the telescopic motor 112, and the other end is fixedly connected to the bottom beam 117 at the top and bottom respectively. The two support frames 113 form a triangular structure, which increases the stability of the entire device and ensures that the blades 116 and the bottom beam 117 can remain stable during the wind direction adjustment process, without shaking or shifting, thus ensuring the accuracy and reliability of wind direction adjustment.

[0022] A sliding tongue 114 is welded onto the bottom beam 117, and a sliding groove 119 is provided on the blade support 115. The sliding tongue 114 and the sliding groove 119 are slidably connected to ensure that the movement trajectory of the blade support 115 is linear, reduce movement friction, and avoid jamming.

[0023] A circular slot is provided on the blade support 115, and a support fixing rod 118 is rotatably connected inside the circular slot.

[0024] The system includes four temperature sensors 12, three hot air blowers 13, and one blower 10. The temperature sensors 12, hot air blowers 13, and blower 10 are arranged in pairs at the four corners of the curing chamber 2. The hot air blower 13 in each corner can heat the area. With the real-time monitoring of the temperature sensors 12, the heat output can be precisely adjusted according to the temperature feedback of different areas to ensure that the temperature in each corner reaches and remains within a suitable range. This effectively improves the uniformity and consistency of the curing process and ensures stable product quality.

[0025] The heating tube 9 is arranged in a serpentine pattern and is located at the tail end of the return air duct 4, on the right side of the blower 10. The serpentine arrangement of the heating tube 9 increases the contact area and contact time between the heating tube 9 and the air in the return air duct. When the air flows through the tail end of the return air duct, the serpentine heating tube 9 can more fully transfer heat to the air, so that the air is heated evenly and efficiently, providing a stable source of hot air for the curing oven, which helps to improve the curing effect and the consistency of product quality.

[0026] When implementing this procedure, please follow these steps:

[0027] 1) First, close the intake valve 7;

[0028] 2) Then, based on the appearance of the workpiece, the angle of the blades 116 is adjusted by setting the controller 120 of the microcontroller 14 to control the four telescopic motors 112 respectively, so as to heat and solidify the dead corner area of ​​the workpiece.

[0029] 3) Restart the blower 10, hot air blower 13, and return air blower 5 to solidify the workpiece. When the sensor in a certain area detects that the temperature of the current area has reached the set value, the microcontroller sends a command to the controller to change the operation of the telescopic motor, thereby driving the fan blades to rotate and blow hot air to the area with a lower temperature.

[0030] 4) Then wait for the workpiece to cure completely.

[0031] 5) Finally, turn off the blower 10, the hot air blower 13, and the return air blower 5, and open the air inlet valve 7.

[0032] In summary, the circulating air duct device of this thermosetting oven, by setting a controller 120 to control the telescopic motor 112 to drive the bottom beam 117 to move up and down, thereby controlling the angle of the fan blades 116 to control the airflow direction, and by setting up multi-zone temperature sensors 12 and airflow adjustment device 11, can accurately regulate the temperature and airflow distribution of each part, ensuring uniform heating of the workpiece, and achieving directional heating of dead corner areas, effectively improving the curing quality.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating air duct device for a thermosetting oven, comprising a curing oven body (1), characterized in that: The curing oven body (1) has a curing chamber (2) inside. The top of the curing chamber (2) is provided with a return air vent (3). The curing oven body (1) is provided with a return air duct (4). A return air fan (5) is fixedly connected inside the return air duct (4). A dehumidifier (6) is fixedly connected inside the return air duct (4). An air inlet valve (7) is provided at the lower end of the return air duct (4). An air filter (8) is snapped into the inside of the return air duct (4). A heating tube (9) is fixedly connected to the tail of the return air duct (4). A microcontroller (14) is fixedly connected to the outside of the curing oven body (1). A hot air blower (13) is fixedly connected inside the curing oven body (1). A temperature sensor (12) is fixedly connected to the inner wall of the curing oven body (1). A blower (10) is fixedly connected inside the curing oven body (1). A wind direction adjustment device (11) is fixedly connected inside the curing oven body (1). A motor base (111) is welded inside the curing oven body (1). A telescopic motor (112) is fixedly connected to the motor base (111). A controller (120) is fixedly connected to the motor base (111). A support frame (113) is threadedly connected to the telescopic push rod of the telescopic motor (112). A bottom beam (117) is fixedly connected to the other end of the support frame (113). A blade bracket (115) is movably connected to one side of the bottom beam (117). A blade (116) is fixedly connected to the other end of the blade bracket (115).

2. The circulating air duct device for a thermosetting oven according to claim 1, characterized in that: The number of support frames (113) is two, one end of which is fixedly connected to the telescopic push rod of the telescopic motor (112), and the other end is fixedly connected to the bottom beam (117) at the top and bottom respectively.

3. The circulating air duct device for a thermosetting oven according to claim 1, characterized in that: A sliding tongue (114) is welded onto the bottom beam (117), and a sliding groove (119) is provided on the blade support (115). The sliding tongue (114) is adapted to the sliding groove (119).

4. The circulating air duct device for a thermosetting oven according to claim 1, characterized in that: The blade support (115) has a circular groove, and a support fixing rod (118) is provided inside the circular groove.

5. A circulating air duct device for a thermosetting oven according to claim 1, characterized in that: The number of temperature sensors (12) is four, the number of hot air blowers (13) is three, and the number of air blowers (10) is one. The temperature sensors (12), hot air blowers (13), and air blowers (10) are arranged in pairs at the four corners of the curing chamber (2).

6. A circulating air duct device for a thermosetting oven according to claim 1, characterized in that: The heating tube (9) is arranged in a serpentine pattern and is located at the tail end of the return air duct (4) and on the right side of the blower (10).

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