Reflow soldering furnace convenient to adjust

Abstract

The utility model belongs to the technical field of reflow soldering furnaces, and discloses a reflow soldering furnace convenient to adjust, which comprises a lower furnace body and two groups of conveying mechanisms, bottom plates are placed at the bottom of the inner wall of the lower furnace body, clamping grooves are formed in the upper surfaces of the bottom plates, and adjusting mechanisms for driving the two groups of bottom plates to adjust use positions are arranged in the clamping grooves of the bottom plates. A positioning mechanism is arranged on the front face of the adjusting mechanism, a groove is formed in the front face of the bottom plate, a limiting mechanism is arranged in the groove of the bottom plate, the position of electronic driving equipment in the adjusting mechanism is arranged at the lower end of the bottom plate, and then the heat dissipation equipment is synchronously driven to be started in the starting process of the electronic driving equipment through the adjusting mechanism. And electronic driving equipment in the follow-up adjusting mechanism can effectively dissipate heat in the using process, so that the situation that the follow-up adjusting mechanism cannot dissipate heat in the using process and is damaged is avoided as much as possible, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of reflow oven technology, and specifically to a reflow oven that is easy to adjust. Background Technology

[0002] After the pick-and-place machine places the components, they enter the reflow oven chamber. The oven temperature is set according to the principles of heat conduction, convection, and radiation, and the solder paste temperature profile provided by the manufacturer. The active / passive components are then soldered onto the printed circuit board.

[0003] In the process of developing this application, the following problems were found with the technology: Most existing reflow ovens rely on electronic drive devices to move two sets of conveying mechanisms inside the oven body. However, most electronic drive devices are prone to damage after prolonged contact with high temperatures, making it impossible for the subsequent drive mechanism to be turned on for a long time, thus reducing the practicality of the equipment.

[0004] Therefore, a reflow oven that is easy to adjust is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that most electronic drive devices are easily damaged after prolonged contact with high temperatures, making it impossible for the subsequent drive mechanism to be turned on for a long time. This invention provides a reflow oven that is easy to adjust.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An easily adjustable reflow oven includes a lower oven body and two sets of conveying mechanisms. A base plate is placed at the bottom of the inner wall of the lower oven body. A slot is formed on the upper surface of the base plate. An adjustment mechanism is provided inside the slot of the base plate to drive the two sets of base plates to adjust their positions. A positioning mechanism is provided on the front of the adjustment mechanism. A groove is formed on the front of the base plate. A limit mechanism is provided inside the groove of the base plate.

[0008] Furthermore, the adjustment mechanism includes a bidirectional screw, a motor, and a fan. Through holes are provided on both the left and right sides of the base plate slot. The bidirectional screw is rotatably connected inside the two sets of through holes in the base plate. The motor and the fan are both mounted on the lower surface of the base plate, which also has through holes. The output shaft of the motor passes through the through holes in the base plate and is fitted with a first bevel gear. The external teeth of the first bevel gear mesh with a second bevel gear. The second bevel gear is mounted on the outer surface of the bidirectional screw. Two sets of sliding plates are threaded onto the external surface of the bidirectional screw. Two sets of transmission mechanisms are respectively mounted on the upper surfaces of the two sets of sliding plates. The output end of the motor and the control end of the fan are electrically connected.

[0009] Furthermore, the positioning mechanism includes two sets of T-shaped slide rods, two sets of connecting rods, and scale markings. The scale markings are located on the front of the base plate. The two sets of connecting rods are respectively installed on the front of the two sets of sliding plates. The two sets of T-shaped slide rods are slidably connected inside the slots of the base plate. The positions of the two sets of T-shaped slide rods are located on the moving paths of the two sets of connecting rods. Slots are provided on opposite sides of the two sets of T-shaped slide rods. Pressure sensors are provided inside the slots of the two sets of T-shaped slide rods. The backs of the two sets of T-shaped slide rods abut against the front of the scale markings. The two sets of pressure sensors are electrically connected to the control terminal of the motor.

[0010] Furthermore, the limiting mechanism includes two sets of connecting blocks, which are respectively installed on the adjacent side of the two sets of T-shaped slide rods. The positions of the two sets of connecting blocks are both located inside the slots of the base plate. The front of the two sets of connecting blocks is provided with screws, and the external threads of the two sets of screws are connected with nuts. The back of the two sets of nuts abuts against the front of the base plate.

[0011] Furthermore, both sets of nuts have anti-slip grooves on their back sides.

[0012] Furthermore, a positioning groove is provided on the back of the base plate, and two sets of U-shaped limiting rods are slidably connected inside the positioning groove of the base plate. The front sides of the two sets of U-shaped limiting rods are respectively installed on the back of the two sets of sliding plates.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a starting motor to drive bevel gear one, bevel gear two, and a bidirectional screw to rotate. During rotation, the bidirectional screw drives two sets of sliding plates and two sets of conveying mechanisms to adjust and move to the left and right sides of the PCB board. This allows for adjustment of the distance between the two sets of conveying mechanisms during use, enabling the conveying of various PCB board models during startup, thus expanding the applicability of the device and improving its practicality. Furthermore, by positioning the motor directly below the base plate and simultaneously triggering a fan during startup, the motor can quickly dissipate heat during use, minimizing the risk of damage to the adjusting mechanisms due to insufficient heat dissipation, thereby extending the device's lifespan.

[0015] 2. This utility model adjusts the position of two sets of T-shaped slide rods to the corresponding position on the front of the scale mark by pushing two sets of T-shaped slide rods. Then, by positioning two sets of pressure sensors on the movement path of two sets of connecting rods, the subsequent two sets of slide plates drive the two sets of connecting rods to trigger the two sets of pressure sensors to shut down the motor during the movement. This allows the subsequent positioning mechanism to replace the manual shutdown of the motor and adjust the position of the two sets of conveying mechanisms, thereby improving the accuracy of the position adjustment of the two sets of conveying mechanisms and thus improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the top structure of the positioning mechanism of this utility model;

[0019] Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle.

[0020] Reference numerals in the attached drawings: 1. Lower furnace body; 2. Base plate; 3. Conveying mechanism; 4. Adjusting mechanism; 401. Slide plate; 402. Motor; 403. Fan; 404. Bevel gear one; 405. Bevel gear two; 406. Bidirectional screw; 5. U-shaped limit rod; 6. Positioning mechanism; 601. Scale mark; 602. Connecting rod; 603. T-shaped slide rod; 604. Pressure sensor; 7. Limiting mechanism; 701. Screw; 702. Nut; 703. Connecting block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figures 1 to 4 As shown, an easily adjustable reflow oven includes a lower furnace body 1 and two sets of conveying mechanisms 3. A base plate 2 is placed at the bottom of the inner wall of the lower furnace body 1. A slot is formed on the upper surface of the base plate 2. An adjustment mechanism 4 is set inside the slot of the base plate 2 to drive the two sets of base plates 2 to adjust their positions. A positioning mechanism 6 is set on the front of the adjustment mechanism 4. A groove is formed on the front of the base plate 2. A limit mechanism 7 is set inside the groove of the base plate 2. Specifically, the position of the electronic drive device inside the adjustment mechanism 4 is set at the lower end of the base plate 2. When the electronic drive device of the adjustment mechanism 4 is started, the heat dissipation device is started simultaneously. This allows the electronic drive device inside the adjustment mechanism 4 to effectively dissipate heat during use, thereby avoiding damage caused by insufficient heat dissipation during use and thus improving the service life of the device.

[0026] like Figures 1 to 4 As shown, the adjustment mechanism 4 includes a bidirectional screw 406, a motor 402, and a fan 403. Through holes are provided on both the left and right sides of the slot in the base plate 2. The bidirectional screw 406 is rotatably connected to the two sets of through holes in the base plate 2. The motor 402 and the fan 403 are both installed on the lower surface of the base plate 2. Through holes are provided on the lower surface of the base plate 2. The output shaft of the motor 402 passes through the through hole in the base plate 2 and is fitted with a bevel gear 404. The external teeth of the bevel gear 404 mesh with a bevel gear 405. The bevel gear 405 is installed on the outer surface of the bidirectional screw 406. Two sets of sliding plates 401 are threaded onto the external surface of the bidirectional screw 406. Two sets of transmission mechanisms 3 are respectively installed on the upper surfaces of the two sets of sliding plates 401. The output end of the motor 402 and the control end of the fan 403 are electrically connected.

[0027] Specifically, by starting the motor 402, the bevel gear 404, bevel gear 405, and bidirectional screw 406 are rotated. During this rotation, the bidirectional screw 406 drives two sets of sliding plates 401 and two sets of conveying mechanisms 3 to adjust and move to the left and right sides of the PCB board. This allows the spacing between the two sets of conveying mechanisms 3 to be adjusted during use, enabling the conveying of various PCB board models and expanding the applicability of the device, thus improving its practicality. Furthermore, by positioning the motor 402 directly below the base plate 2 and simultaneously triggering the fan 403 during startup, the motor 402 can quickly dissipate heat, minimizing the risk of damage to the adjusting mechanism 4 due to insufficient heat dissipation, thereby extending the device's lifespan.

[0028] like Figure 1 and Figure 3 As shown, the positioning mechanism 6 includes two sets of T-shaped slide rods 603, two sets of connecting rods 602, and scale marks 601. The scale marks 601 are set on the front of the base plate 2. The two sets of connecting rods 602 are respectively installed on the front of the two sets of sliding plates 401. The two sets of T-shaped slide rods 603 are slidably connected inside the slots of the base plate 2. The positions of the two sets of T-shaped slide rods 603 are located on the moving path of the two sets of connecting rods 602. Slots are opened on opposite sides of the two sets of T-shaped slide rods 603. Pressure sensors 604 are installed inside the slots of the two sets of T-shaped slide rods 603. The backs of the two sets of T-shaped slide rods 603 abut against the front of the scale marks 601. The two sets of pressure sensors 604 and the motor 402 are connected. Electrical connections are established between the control terminals. Specifically, by pushing two sets of T-shaped slide bars 603, the positions of the two sets of T-shaped slide bars 603 are adjusted and moved to the positions corresponding to the front of the scale mark 601. Then, the positions of the two sets of pressure sensors 604 are located on the movement path of the two sets of connecting rods 602, so that the subsequent two sets of slide plates 401 drive the two sets of connecting rods 602 to trigger the two sets of pressure sensors 604 to shut down the motor 402 during the movement. This allows the subsequent positioning mechanism 6 to replace the manual shutdown of the motor 402 by the operator to adjust the position of the two sets of conveying mechanisms 3, thereby improving the accuracy of the position adjustment of the subsequent two sets of conveying mechanisms 3 and thus improving the practicality of the device.

[0029] like Figure 1 and Figure 3As shown, the limiting mechanism 7 includes two sets of connecting blocks 703, which are respectively installed on the adjacent side of the two sets of T-shaped slide rods 603. The positions of the two sets of connecting blocks 703 are both located inside the slots of the base plate 2. The front of each set of connecting blocks 703 is provided with a screw 701, and the external threads of the two sets of screws 701 are connected to nuts 702. The back of the two sets of nuts 702 abuts against the front of the base plate 2. Specifically, after the positions of the two sets of T-shaped slide rods 603 are adjusted and moved, the back of the two sets of nuts 702 are abutted against the front of the base plate 2 by rotating the two sets of nuts 702. This allows the limiting mechanism 7 to restrict the movement of the two sets of T-shaped slide rods 603 inside the slots of the base plate 2, thereby minimizing the movement of the two sets of T-shaped slide rods 603 during use and thus improving the stability of the subsequent positioning mechanism 6 during use.

[0030] like Figure 1 As shown, anti-slip textures are provided on the back of both sets of nuts 702. Specifically, the anti-slip textures are positioned between the two sets of nuts 702 and the front of the base plate 2, thereby increasing the friction between the contact surfaces of the two sets of nuts 702 and the front of the base plate 2. This helps to prevent the two sets of nuts 702 from sliding on the front of the base plate 2, thus improving the stability of the subsequent limiting mechanism 7 during use.

[0031] like Figure 2 As shown, a positioning groove is provided on the back of the base plate 2. Two sets of U-shaped limiting rods 5 are slidably connected inside the positioning groove of the base plate 2. The front of the two sets of U-shaped limiting rods 5 are respectively installed on the back of the two sets of sliding plates 401. Specifically, by slidably connecting the two sets of U-shaped limiting rods 5 inside the positioning groove of the base plate 2, the subsequent two sets of U-shaped limiting rods 5 restrict the movement path of the two sets of sliding plates 401, thereby minimizing the risk of the subsequent two sets of sliding plates 401 causing the two sets of conveying mechanisms 3 to deviate during the movement, thus improving the stability of the subsequent two sets of conveying mechanisms 3 during the movement.

[0032] In summary: By starting the motor 402, the bevel gear 404, bevel gear 405, and bidirectional screw 406 are rotated. During this rotation, the bidirectional screw 406 moves the two sets of sliding plates 401 and the two sets of conveying mechanisms 3 to the left and right sides of the PCB board. This allows for adjustment of the distance between the two sets of conveying mechanisms 3 during use, enabling the conveying of various PCB board models. The motor 402 is positioned directly below the base plate 2, and the fan 403 is simultaneously activated during startup. This ensures rapid heat dissipation for the motor 402, minimizing the risk of damage to the adjustment mechanism 4 due to insufficient heat dissipation.

[0033] Simultaneously, by pushing the two sets of T-shaped slide bars 603, the positions of the two sets of T-shaped slide bars 603 are adjusted and moved to the positions corresponding to the front of the scale mark 601. Then, the positions of the two sets of pressure sensors 604 are located on the movement path of the two sets of connecting rods 602, so that the subsequent two sets of slide plates 401 drive the two sets of connecting rods 602 to trigger the two sets of pressure sensors 604 to shut down the motor 402 during the movement. This allows the subsequent positioning mechanism 6 to replace the manual shutdown of the motor 402 and adjust the position of the two sets of conveying mechanisms 3, thereby improving the accuracy of the position adjustment of the subsequent two sets of conveying mechanisms 3. By rotating the two sets of nuts 702, the backs of the two sets of nuts 702 are abutted against the front of the base plate 2, so that the subsequent limiting mechanism 7 restricts the movement of the two sets of T-shaped slide bars 603 inside the slots of the base plate 2, thereby minimizing the movement of the subsequent two sets of T-shaped slide bars 603 during use.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An easily adjustable reflow oven, comprising a lower oven body (1) and two sets of conveying mechanisms (3), characterized in that: A bottom plate (2) is placed at the bottom of the inner wall of the lower furnace body (1). A slot is provided on the upper surface of the bottom plate (2). An adjustment mechanism (4) is provided inside the slot of the bottom plate (2) to drive the two sets of bottom plates (2) to adjust their positions. A positioning mechanism (6) is provided on the front of the adjustment mechanism (4). A groove is provided on the front of the bottom plate (2). A limit mechanism (7) is provided inside the groove of the bottom plate (2). The adjusting mechanism (4) includes a bidirectional screw (406), a motor (402), and a fan (403). Through holes are provided on both the left and right sides of the slot in the base plate (2). The bidirectional screw (406) is rotatably connected to the two sets of through holes in the base plate (2). The motor (402) and the fan (403) are both installed on the lower surface of the base plate (2). Through holes are provided on the lower surface of the base plate (2). The output shaft of the motor (402) passes through the through holes inside the base plate (2) and is installed with... A bevel gear one (404) is connected to a bevel gear two (405) by meshing the external teeth of the bevel gear one (404). The bevel gear two (405) is mounted on the outer surface of the bidirectional screw (406). The external threads of the bidirectional screw (406) are connected to two sets of sliding plates (401). The two sets of transmission mechanisms (3) are respectively mounted on the upper surfaces of the two sets of sliding plates (401). The output end of the motor (402) and the control end of the fan (403) are electrically connected.

2. The easily adjustable reflow oven according to claim 1, characterized in that: The positioning mechanism (6) includes two sets of T-shaped slide rods (603), two sets of connecting rods (602), and scale marks (601). The scale marks (601) are set on the front of the base plate (2). The two sets of connecting rods (602) are respectively installed on the front of the two sets of sliding plates (401). The two sets of T-shaped slide rods (603) are slidably connected to the slots inside the base plate (2). The positions of the two sets of T-shaped slide rods (603) are located on the moving path of the two sets of connecting rods (602). The opposite sides of the two sets of T-shaped slide rods (603) are provided with slots. Pressure sensors (604) are provided inside the slots of the two sets of T-shaped slide rods (603). The back sides of the two sets of T-shaped slide rods (603) abut against the front of the scale marks (601). The two sets of pressure sensors (604) are electrically connected to the control end of the motor (402).

3. The easily adjustable reflow oven according to claim 2, characterized in that: The limiting mechanism (7) includes two sets of connecting blocks (703). The two sets of connecting blocks (703) are respectively installed on the adjacent side of the two sets of T-shaped slide bars (603). The positions of the two sets of connecting blocks (703) are both located inside the slot of the base plate (2). The front of the two sets of connecting blocks (703) is provided with screws (701). The external threads of the two sets of screws (701) are connected with nuts (702). The back of the two sets of nuts (702) abut against the front of the base plate (2).

4. The easily adjustable reflow oven according to claim 3, characterized in that: Both sets of nuts (702) have anti-slip grooves on their back sides.

5. The easily adjustable reflow oven according to claim 1, characterized in that: The back of the base plate (2) is provided with a positioning groove, and two sets of U-shaped limiting rods (5) are slidably connected inside the positioning groove of the base plate (2). The front of the two sets of U-shaped limiting rods (5) are respectively installed on the back of the two sets of sliding plates (401).

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