A reflow soldering furnace temperature adjusting based air volume adjusting mechanism

Abstract

This utility model discloses an airflow regulating mechanism based on reflow oven temperature control, including a reflow oven body. Support plates are installed in mounting holes at both the front and rear ends of the reflow oven body. A guide shell is located between the lower inner sides of the two support plates, with an open upper end. A gap exists between the outer side of the guide shell and the inner side of the reflow oven body. A blower is provided on the upper surface of the guide shell. Airflow regulating baffles are rotatably connected between the two support plates via rotating shafts. The airflow regulating baffles are located between the left and right inner walls of the reflow oven body and the guide shells. This utility model changes the size of the air inlet by varying the rotation angle of the airflow regulating baffles, allowing for adjustment of the airflow during reflow oven temperature control according to customer requirements, thus optimizing the reflow oven temperature and making temperature control more accurate.

Description

Technical Field

[0001] This utility model relates to the field of reflow soldering equipment technology, specifically to an airflow regulating mechanism based on reflow oven temperature regulation. Background Technology

[0002] Reflow oven temperature control refers to adjusting the temperature settings of the reflow oven to ensure that the temperature of each temperature zone is controlled within the optimal range during the welding process, thereby ensuring welding quality. Reflow ovens are usually divided into several temperature zones, including a preheating zone, a constant temperature zone, a reflow zone, and a cooling zone. Each zone has strict requirements for temperature and dwell time.

[0003] In existing technologies, when adjusting the temperature of a reflow oven, in order to reduce the mutual influence of air in different areas, it is often necessary to install air guiding components inside the reflow oven. By guiding the air in each area to circulate within that area, the diffusion of air from that area to other areas is reduced, thereby achieving temperature adjustment of the reflow oven. However, different customers have different needs for reflow oven temperature, and during adjustment, the airflow control during the air circulation process is relatively inconvenient and can easily affect the accuracy of reflow oven temperature adjustment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an air volume adjustment mechanism based on reflow oven temperature regulation. By changing the rotation angle of the air volume adjustment baffle, the size of the air inlet can be changed. According to the different customer requirements for reflow oven temperature, the air volume during the reflow oven temperature regulation process can be adjusted to optimize the reflow oven temperature and make the reflow oven temperature regulation more accurate. This can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an airflow regulating mechanism based on reflow oven temperature regulation, comprising a reflow oven body;

[0006] Support plates are installed in the mounting holes at both ends of the reflow oven body. A flow guide shell is installed between the lower inner sides of the two support plates. The upper end of the flow guide shell is open. There is a gap between the outer side of the flow guide shell and the inner side of the reflow oven body. A blower is installed on the upper surface of the flow guide shell. Air volume regulating baffles are rotatably connected between the two support plates through a rotating shaft. The air volume regulating baffles are located between the left and right inner walls of the reflow oven body and the flow guide shell.

[0007] Furthermore, a guide tube is provided in the mounting hole in the middle of the bottom wall of the guide shell. An upper air hole is provided at the upper end of the outer arc surface of the guide tube, which is located inside the guide shell. A lower air hole is provided at the lower end of the outer arc surface of the guide tube, which is located between the lower surface of the guide shell and the bottom wall of the reflow oven body, to guide the airflow direction.

[0008] Furthermore, an electric fan is provided in the middle of the inner arc surface of the guide tube, and the input end of the electric fan is electrically connected to the output end of the reflow oven controller to provide power for the airflow.

[0009] Furthermore, a mounting plate is provided in the mounting hole on the lower surface of the reflow oven body, a switching baffle is movably fitted on the outer arc surface of the guide pipe, a corrugated pipe is provided between the outer edge of the lower surface of the switching baffle and the upper surface of the mounting plate, and an air inlet pipe is provided at the air inlet on the lower surface of the mounting plate to introduce fresh hot air.

[0010] Furthermore, the lower surface of the airflow regulating baffle is provided with a vertical plate at the end away from the guide shell. The bottom wall of the reflow oven body is provided with a rotating frame. The front and rear inner walls of the rotating frame are rotatably connected to an adjusting rotating plate through a rotating shaft. The sliding column at the lower end of the vertical plate is slidably connected to the sliding groove at the upper end of the adjusting rotating plate. The outer arc surface of the rotating shaft of the adjusting rotating plate is provided with an adjusting rotating plate. A linkage plate is vertically slidably connected to the lower end of the reflow oven body. The linkage plate is a U-shaped plate. The sliding column at the upper end of the vertical plate of the linkage plate is slidably connected to the sliding groove on the surface of the adjacent adjusting rotating plate, so as to rotate the airflow regulating baffle synchronously.

[0011] Furthermore, the lower surface of the reflow oven body is provided with an electric push rod II. The lower end of the telescopic end of the electric push rod II is fixedly connected to the horizontal plate of the linkage plate. An electric push rod I is provided in the round hole on the upper surface of the mounting plate. The upper end of the telescopic end of the electric push rod I is fixedly connected to the lower surface of the switching baffle. The input ends of the electric push rod I and the electric push rod II are electrically connected to the output end of the reflow oven controller to provide power for the up and down movement of the linkage plate and the switching baffle.

[0012] Furthermore, the surface of each airflow regulating baffle is fixedly fitted with a rubber sleeve to improve the sealing effect of the airflow regulating baffle.

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

[0014] By changing the rotation angle of the airflow regulating baffle to alter the size of the air inlet, the airflow during the reflow oven temperature regulation process can be adjusted according to the customer's different requirements for reflow oven temperature, thereby optimizing the reflow oven temperature and making the reflow oven temperature regulation more accurate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front view of the overall device of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0018] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 5 This is an enlarged structural diagram of section B of the present invention.

[0020] In the diagram: 1 Reflow oven body, 2 Support frame plate, 3 Guide shell, 4 Blower plate, 5 Air volume adjustment baffle, 6 Guide pipe, 7 Upper air hole, 8 Lower air hole, 9 Electric fan, 10 Mounting plate, 11 Electric push rod one, 12 Switching baffle, 13 Corrugated pipe, 14 Air inlet pipe, 15 Vertical plate, 16 Adjusting rotating plate one, 17 Adjusting rotating plate two, 18 Linkage plate, 19 Electric push rod two, 20 Rotating frame, 21 Rubber sleeve. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 This embodiment provides a technical solution: an airflow regulating mechanism based on reflow oven temperature regulation, including a reflow oven body 1; support plates 2 are provided in the mounting holes at both ends of the reflow oven body 1, and a guide shell 3 is provided between the lower ends of the inner sides of the two support plates. The upper end of the guide shell 3 is an open structure, and there is a gap between the outer side of the guide shell 3 and the inner side of the reflow oven body 1. A blower plate 4 is provided on the upper surface of the guide shell 3. Airflow regulating baffles 5 are rotatably connected between the two support plates 2 through a rotating shaft. The airflow regulating baffles 5 are located between the left and right inner walls of the reflow oven body 1 and the guide shell 3, respectively.

[0023] The guide tube 6 is installed in the mounting hole in the middle of the bottom wall of the guide shell 3. The upper end of the outer arc surface of the guide tube 6 is provided with an upper air hole 7, which is located inside the guide shell 3. The lower end of the outer arc surface of the guide tube 6 is provided with a lower air hole 8, which is located between the lower surface of the guide shell 3 and the bottom wall of the reflow oven body 1. An electric fan 9 is provided in the middle of the inner arc surface of the guide tube 6. The input end of the electric fan 9 is electrically connected to the output end of the reflow oven controller. An mounting plate 10 is installed in the mounting hole on the lower surface of the reflow oven body 1. A switching baffle 12 is movably fitted on the outer arc surface of the guide tube 6. A corrugated pipe 13 is provided between the outer edge of the lower surface of the switching baffle 12 and the upper surface of the mounting plate 10. An air inlet pipe 14 is provided at the air inlet on the lower surface of the mounting plate 10.

[0024] The airflow regulating baffle 5 has a vertical plate 15 on the lower surface away from the guide shell 3. The bottom wall of the reflow oven body 1 is provided with a rotating frame 20. The front and rear inner walls of the rotating frame 20 are rotatably connected to the regulating rotating plate 16 via a rotating shaft 2. The sliding column 1 at the lower end of the vertical plate 15 is slidably connected to the sliding groove 1 at the upper end of the regulating rotating plate 16. The outer arc surface of the rotating shaft 2 of the regulating rotating plate 16 is provided with regulating rotating plate 2 17. The lower end of the reflow oven body 1 is vertically slidably connected to a linkage plate 18. The linkage plate 18 is a U-shaped plate. The vertical plates of the linkage plate 18 are vertically slidably connected to the sliding holes on the surface of the reflow oven body 1. The sliding column 2 at the upper end of the vertical plate of the linkage plate 18 is slidably connected to the sliding groove 2 on the surface of the adjacent regulating rotating plate 2 17.

[0025] The reflow oven body 1 is provided with an electric push rod 2 19 on its lower surface. The lower end of the telescopic end of the electric push rod 2 19 is fixedly connected to the horizontal plate of the linkage plate 18. Electric push rod 11 is provided in the round hole on the upper surface of the mounting plate 10. The upper end of the telescopic end of the electric push rod 11 is fixedly connected to the lower surface of the switching baffle 12. The input ends of the electric push rod 11 and the electric push rod 2 19 are electrically connected to the output end of the reflow oven controller.

[0026] The working principle of this utility model is as follows:

[0027] During the reflow oven temperature regulation process, the electric fan 9 is started by the reflow oven controller to guide the airflow. At this time, the switching baffle 12 is located below the lower air hole 8. The air between the lower surface of the guide shell 3 and the bottom wall of the reflow oven body 1 will enter the guide tube 6 through the lower air hole 8. Then, under the guidance of the guide component, the air between the lower surface of the guide shell 3 and the bottom wall of the reflow oven body 1 is discharged from the upper air hole 7 into the interior of the guide shell 3. The air inside the guide shell 3 is blown out from the surface hole of the blower plate 4. The blown air re-enters the space between the guide shell 3 and the reflow oven body 1 through the gap between the left and right sides of the guide shell 3 and the left and right inner walls of the reflow oven body 1, so as to realize the air circulation during the reflow oven temperature regulation process, reduce the loss of reflow oven temperature, and realize the regulation of reflow oven temperature.

[0028] When it is necessary to switch the airflow mode, the switching baffle 12 moves upward and contacts the lower surface of the guide shell 3. During the movement of the switching baffle 12, the bellows 13 extends and retracts. The bellows 13 seals the outer edge of the lower surface of the switching baffle 12 and the outer edge of the upper surface of the mounting plate 10, guiding the airflow path. At this time, external hot air will enter between the lower surface of the switching baffle 12, the inner arc surface of the bellows 13 and the upper surface of the mounting plate 10 through the air inlet pipe 14. Under the guidance of the bellows 13, fresh hot air will enter the interior of the guide pipe 6 through the lower air hole 8, injecting fresh hot air into the circulating air.

[0029] Depending on the customer's requirements for reflow oven temperature, the electric push rod 19 can be activated during airflow. The telescopic end of the electric push rod 19 moves the linkage plate 18 downward. The sliding column 2 at the upper end of the vertical plate of the linkage plate 18 slides in the sliding groove 2 of the adjusting plate 17, causing the adjusting plate 17 and the coaxial adjusting plate 16 to rotate. The sliding column 1 of the vertical plate 15 slides in the sliding groove 1 of the adjusting plate 16, causing the adjusting plate 16 to push the airflow regulating baffle 5 to rotate. The airflow regulating baffle 5 on the left rotates counterclockwise. The air volume regulating baffle 5 on the right side rotates clockwise. During the rotation, the rubber sleeve 21 on the surface of the air volume regulating baffle 5 is always in contact with the inner surfaces of the two support plates 2, sealing the air volume regulating baffle 5 and the support plates 2. The airflow can only flow through the gap between the upper surface of the blower plate 4, the air volume regulating baffle 5 and the left and right inner walls of the reflow oven body 1. By controlling the size of the gap by different rotation angles of the air volume regulating baffle 5, the size of the air inlet is changed, and the air volume is adjusted during the reflow oven temperature adjustment process to optimize the reflow oven temperature.

[0030] It is worth noting that the electric linear actuator 11 and electric linear actuator 2 19 disclosed in the above embodiments can be freely configured according to the actual application scenario. It is recommended to use the ANT-52 model electric linear actuator. The reflow oven controller controls the operation of electric linear actuator 11 and electric linear actuator 2 19 using methods commonly used in the prior art.

[0031] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An airflow regulating mechanism based on reflow oven temperature regulation, characterized in that: Including the reflow oven body (1); The reflow oven body (1) has support plates (2) installed in the mounting holes at both ends. A guide shell (3) is provided between the lower ends of the inner sides of the two support plates. The upper end of the guide shell (3) is an open structure. There is a gap between the outer side of the guide shell (3) and the inner side of the reflow oven body (1). A blower plate (4) is provided on the upper surface of the guide shell (3). A flow rate regulating baffle (5) is rotatably connected between the two support plates (2) through a rotating shaft. The flow rate regulating baffle (5) is located between the left and right inner walls of the reflow oven body (1) and the guide shell (3).

2. The airflow regulating mechanism based on reflow oven temperature regulation according to claim 1, characterized in that: The guide tube (6) is provided in the mounting hole in the middle of the bottom wall of the guide shell (3). The upper end of the outer arc surface of the guide tube (6) is provided with an upper air hole (7). The upper air hole (7) is located inside the guide shell (3). The lower end of the outer arc surface of the guide tube (6) is provided with a lower air hole (8). The lower air hole (8) is located between the lower surface of the guide shell (3) and the bottom wall of the reflow oven body (1).

3. The airflow regulating mechanism based on reflow oven temperature regulation according to claim 2, characterized in that: An electric fan (9) is provided in the middle of the inner arc surface of the guide tube (6), and the input end of the electric fan (9) is electrically connected to the output end of the reflow oven controller.

4. The airflow regulating mechanism based on reflow oven temperature regulation according to claim 2, characterized in that: The reflow oven body (1) has an installation plate (10) installed in the mounting hole on the lower surface. The outer arc surface of the guide pipe (6) is movably fitted with a switching baffle (12). A corrugated pipe (13) is provided between the lower outer edge of the switching baffle (12) and the upper surface of the installation plate (10). An air inlet pipe (14) is provided at the air inlet on the lower surface of the installation plate (10).

5. The airflow regulating mechanism based on reflow oven temperature regulation according to claim 4, characterized in that: The lower surface of the air volume regulating baffle (5) is provided with a vertical plate (15) at the end away from the guide shell (3). The bottom wall of the reflow oven body (1) is provided with a rotating frame (20). The front and rear inner walls of the rotating frame (20) are rotatably connected to the first adjusting plate (16) through the second rotating shaft. The first sliding column at the lower end of the vertical plate (15) is slidably connected to the first sliding groove at the upper end of the first adjusting plate (16). The outer arc surface of the second rotating shaft of the first adjusting plate (16) is provided with the second adjusting plate (17). The lower end of the reflow oven body (1) is vertically slidably connected with a linkage plate (18). The linkage plate (18) is a U-shaped plate. The second sliding column at the upper end of the vertical plate of the linkage plate (18) is slidably connected to the second sliding groove on the surface of the adjacent second adjusting plate (17).

6. The airflow regulating mechanism based on reflow oven temperature regulation according to claim 5, characterized in that: The lower surface of the reflow oven body (1) is provided with an electric push rod two (19). The lower end of the telescopic end of the electric push rod two (19) is fixedly connected to the horizontal plate of the linkage plate (18). The round holes on the upper surface of the mounting plate (10) are provided with electric push rod one (11). The upper end of the telescopic end of the electric push rod one (11) is fixedly connected to the lower surface of the switching baffle (12). The input ends of the electric push rod one (11) and the electric push rod two (19) are electrically connected to the output end of the reflow oven controller.

7. The airflow regulating mechanism based on reflow oven temperature regulation according to claim 1, characterized in that: The surface of each air volume regulating baffle (5) is fixedly fitted with a rubber sleeve (21).

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