Discharging device of SMT (Surface Mount Technology) reflow soldering furnace

Abstract

The utility model relates to the technical field of welding furnace discharging, and discloses an SMT reflow welding furnace discharging device which comprises a reflow welding furnace, the left side and the right side of the inner wall of the reflow welding furnace are both fixedly connected with fixing blocks, the inner wall of the right side of the reflow welding furnace is fixedly connected with a second motor, and the output end of the second motor is fixedly connected with a power wheel. And a rotating shaft is rotationally connected between every two adjacent fixing blocks, a power wheel is fixedly connected to the middle of each rotating shaft, the outer walls of the two power wheels are in transmission connection through a transmission belt, transmission wheels are fixedly connected to the front end and the rear end of each rotating shaft, and a conveying frame is fixedly connected to the right side of the outer wall of the reflow soldering furnace. According to the utility model, the automatic transmission function can realize rapid discharging, reduce manual intervention and improve the efficiency of the whole production line, the correction function ensures the accurate position of the PCB in the discharging process, the assembly problem caused by position deviation is avoided, and the welding quality and the yield can be improved.

Description

Technical Field

[0001] This utility model relates to the field of furnace discharge technology, and in particular to a discharge device for an SMT reflow oven. Background Technology

[0002] SMT reflow ovens are essential equipment in the electronics manufacturing process, used to solder surface mount components onto PCBs. The reflow oven heats the solder paste, melting the solder and thus connecting the components to the PCB. Reflow ovens typically have precise temperature control and can be programmed with multiple heating profiles to ensure uniform heating and cooling of the solder during the soldering process, preventing heat damage. SMT reflow ovens play a crucial role in electronics manufacturing, ensuring high-quality soldering and efficient production processes.

[0003] When PCB soldering is completed, it needs to be transferred to the next process. The SMT reflow oven unloading device safely and efficiently transports the soldered PCB from the reflow oven to the next process. The unloading device usually has an automated transfer function, which can efficiently transfer the PCB from the soldering oven to the next processing stage, reduce manual intervention, and improve production efficiency. Many unloading devices are equipped with monitoring systems that can track and record the unloading status in real time, promptly identify and resolve potential problems, and ensure the smooth operation of the production process.

[0004] In modern electronics manufacturing, the design and performance of the unloading device directly affect production efficiency and product quality. Choosing the right equipment is crucial. Existing SMT reflow oven unloading devices simply transport the circuit boards out via conveyor belt. When proceeding to the next process, manual correction of their position is required. They cannot automatically correct the position of the circuit boards, resulting in low unloading efficiency and a lack of automatic correction mechanisms, making it impossible to complete the mass production of circuit boards. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an SMT reflow oven unloading device, which aims to improve the problems of low unloading efficiency in the prior art, which requires manual correction of the circuit board position and cannot automatically correct the position of the circuit board.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an SMT reflow oven unloading device, comprising a reflow oven, wherein fixed blocks are fixedly connected to both the left and right sides of the inner wall of the reflow oven, a second motor is fixedly connected to the right inner wall of the reflow oven, a power wheel is fixedly connected to the output end of the second motor, a rotating shaft is rotatably connected between adjacent fixed blocks, a power wheel is fixedly connected to the middle of the rotating shaft, the outer walls of the two power wheels are connected by a transmission belt, transmission wheels are fixedly connected to the front and rear ends of the rotating shaft, and a conveyor frame is fixedly connected to the right side of the outer wall of the reflow oven. A drive wheel is rotatably connected to an adjacent side of the conveyor frame. The outer walls of the multiple drive wheels are connected by a conveyor belt. A first correcting wheel is rotatably connected to the top of the front and rear sides of the conveyor frame. A first limiting stop is fixedly connected to the middle of the conveyor frame. The top of the first limiting stop is rotatably connected to the top of the first correcting wheel. A second limiting stop is fixedly connected to the right side of the conveyor frame. A second correcting wheel is rotatably connected to the inner wall of the top of the second limiting stop. A limiting block is fixedly connected to the top of the right side of the conveyor frame. A fixing mechanism is provided inside the reflow oven. The fixing mechanism is used to fix the module.

[0007] Through the above technical solution: the fixed block provides stable support for the device, ensuring the overall structural stability; motor two serves as the power source, with its output end fixedly connected to the power wheel, providing power support for the operation of the entire device; the outer walls of the two power wheels are connected by a transmission belt, which improves the transmission efficiency and stability of the device; the transmission connection between the transmission wheel and the conveyor frame ensures the smoothness of material transport; the outer walls of multiple transmission wheels are connected by a conveyor belt, which further ensures the stability of material transport; the first corrective wheel ensures the correct direction and position of the material during transport; the first limit stop prevents material slippage during transport; the second limit stop further ensures the stability of material transport; the limit block is designed to prevent excessive movement of material during transport, ensuring the safety of material transport; the fixing mechanism is used to fix the module, ensuring the stability of the module during welding, and ensuring the accuracy and reliability of the welding process.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes a motor, the top of which is fixedly connected to the bottom of a fixing block. A limit box is fixedly connected between adjacent fixing blocks. A rotating rod is fixedly connected to the output end of the motor. A connecting rod is rotatably connected to the left and right ends of the rotating rod. A clamping part is fixedly connected to the other end of the connecting rod. The outer wall of the clamping part is slidably connected to the inner wall of the limit box. A short connecting rod is rotatably connected to the left side of the rotating rod. A connecting column is rotatably connected to the left side of the short connecting rod. A push rod is rotatably connected to the top of the connecting column. A limit strip is fixedly connected between adjacent right sides of the fixing blocks. The inner wall of the limit strip is slidably connected to the outer wall of the push rod.

[0010] Through the above technical solution: the limiting box is a key component that limits the range of motion, ensuring that the clamped part moves accurately within a predetermined trajectory. The output end of motor one is fixedly connected to the rotating rod through a precision transmission device. The clamped part is the component in the mechanism used to perform specific operations. Its outer wall can slide on the inner wall of the limiting box. The top of the connecting column is rotatably connected to the push rod. The multi-layered transmission design ensures the high efficiency of power transmission and increases the stability and reliability of the mechanism.

[0011] As a further description of the above technical solution:

[0012] Each of the conveyor frames is fixedly connected to a support column at its bottom, and a horizontal connecting rod is fixedly connected between adjacent support columns.

[0013] Through the above technical solution: the support column plays a supporting role in the structure, ensuring the stability and load-bearing capacity of the entire conveyor frame, while the horizontal and vertical connecting rods enhance the lateral stability of the structure and provide additional rigidity for the entire conveyor frame.

[0014] As a further description of the above technical solution:

[0015] A controller is fixedly connected to the front right side of the reflow oven, and the controller is electrically connected to motor two and motor one.

[0016] Through the above technical solution, a precise electrical connection is established between the controller and motor 2 as well as motor 1, ensuring precise control of the motors and automation of the welding process.

[0017] As a further description of the above technical solution:

[0018] A screw is fixedly connected to the front left side of the reflow oven, and an information plate is fixedly connected to the outer wall of the screw.

[0019] Through the above technical solution, the information board provides operators with necessary reference data, facilitating equipment management and maintenance.

[0020] As a further description of the above technical solution:

[0021] A platform is fixedly connected to the top of the fixed block, and a processing machine is fixedly connected to the right side of the conveyor frame.

[0022] The above technical solution allows for the convenient placement of circuit boards, facilitating their fixing and soldering.

[0023] As a further description of the above technical solution:

[0024] An observation door is rotatably connected to the front side of the reflow oven, and a handle is fixedly connected to the lower side of the observation door.

[0025] The above technical solution allows operators to easily observe the welding process through an observation door, ensuring welding quality. A handle is fixedly connected to the lower side of the observation door for easy operation.

[0026] As a further description of the above technical solution:

[0027] The reflow oven has support columns fixedly connected at each of its four corners, and anti-slip pads are fixedly connected to the bottom of each support column.

[0028] The above technical solutions enhance the stability of the equipment by providing support columns, and ensure its stability in various working environments by using anti-slip pads at the bottom.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the conveyor belt drives the circuit board to move towards the first limit stop, and the position of the circuit board is corrected by the first correction wheel. Then it moves towards the second limit stop, and the position is corrected again by the second correction wheel. The automatic transmission function can realize rapid material output, reduce manual intervention, and improve the efficiency of the overall production line. The correction function ensures the accurate position of the PCB during the material output process, avoids assembly problems caused by position deviation, and helps to improve welding quality and yield.

[0031] 2. In this utility model, the rotating rod pulls the connecting rod to clamp the circuit board and complete the welding. The rotation of the rotating rod pulls the short connecting rod to move the push rod towards the circuit board in the limit bar, pushing the circuit board towards the conveyor belt. The fixed clamp can firmly fix the PCB and avoid movement and tilting during the unloading process, thereby improving the stability and reliability of the product, ensuring that the PCB remains in the same position during unloading, reducing possible errors during the welding process, and improving welding quality and yield. Attached Figure Description

[0032] Figure 1 This is a perspective view of the front side of a reflow oven for an SMT reflow oven discharge device proposed in this utility model;

[0033] Figure 2 This is a perspective view of the right side of an SMT reflow oven, which is a material discharge device for an SMT reflow oven according to this utility model.

[0034] Figure 3 This is a partial structural diagram of a reflow oven for an SMT reflow oven discharge device proposed in this utility model;

[0035] Figure 4 This is a partial structural diagram of the fixing mechanism of the SMT reflow oven discharge device proposed in this utility model;

[0036] Figure 5 This is a partial structural diagram of the conveyor frame of the SMT reflow oven discharge device proposed in this utility model.

[0037] Legend:

[0038] 1. Reflow oven; 2. Fixing mechanism; 201. Motor 1; 202. Rotating rod; 203. Limiting box; 204. Connecting rod; 205. Clamping parts; 206. Short connecting rod; 207. Connecting column; 208. Push rod; 209. Limiting strip; 3. Fixing block; 4. Motor 2; 5. Rotating shaft; 6. Transmission wheel; 7. Power wheel; 8. Transmission belt; 9. Conveyor belt; 10. Conveyor frame; 11. First correcting wheel; 12. First limiting stop; 13. Second correcting wheel; 14. Second limiting stop; 15. Limiting block; 16. Support column; 17. Horizontal connecting rod; 18. Longitudinal connecting rod; 19. Controller; 20. Screw; 21. Information board; 22. Storage platform; 23. Processing machine; 24. Anti-slip mat; 25. Observation door; 26. Handle; 27. Support column. Detailed Implementation

[0039] 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.

[0040] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5This utility model provides an embodiment of an SMT reflow oven unloading device, comprising a reflow oven 1, with fixed blocks 3 fixedly connected to both the left and right sides of the inner wall of the reflow oven 1, a motor 4 fixedly connected to the right inner wall of the reflow oven 1, a power wheel 7 fixedly connected to the output end of the motor 4, a rotating shaft 5 rotatably connected between adjacent fixed blocks 3, a power wheel 7 fixedly connected to the middle of the rotating shaft 5, and a transmission belt 8 connecting the outer walls of the two power wheels 7, with transmission wheels 6 fixedly connected to the front and rear ends of the rotating shaft 5, and a conveyor frame 10 fixedly connected to the right side of the outer wall of the reflow oven 1, with adjacent conveyor frames 10 connected to the right side of the reflow oven 1. A drive wheel 6 is rotatably connected to the side, and the outer walls of multiple drive wheels 6 are connected by a conveyor belt 9. A first correcting wheel 11 is rotatably connected to the top of the front and rear sides of the conveyor frame 10. A first limiting stop 12 is fixedly connected to the middle of the conveyor frame 10. The top of the first limiting stop 12 is rotatably connected to the top of the first correcting wheel 11. A second limiting stop 14 is fixedly connected to the right side of the conveyor frame 10. A second correcting wheel 13 is rotatably connected to the top inner wall of the second limiting stop 14. A limiting block 15 is fixedly connected to the top right side of the conveyor frame 10. A fixing mechanism 2 is provided inside the reflow oven 1. The fixing mechanism 2 is used to fix the module.

[0041] Specifically, the fixing block 3 provides stable support for the device, ensuring the overall structural stability. The motor 4 serves as the power source, with its output end fixedly connected to the power wheel 7, providing power support for the operation of the entire device. The outer walls of the two power wheels 7 are connected by a transmission belt 8, which improves the transmission efficiency and stability of the device. The transmission connection between the transmission wheel 6 and the conveyor frame 10 ensures the smoothness of the material during the conveying process. The outer walls of multiple transmission wheels 6 are connected by a conveyor belt 9, which further ensures the stability of the material during the conveying process. The first correcting wheel 11 ensures the correct direction and position of the material during the conveying process. The first limiting stop 12 prevents the material from slipping during the conveying process. The second limiting stop 14 further ensures the stability of the material during the conveying process. The design of the limiting block 15 is to prevent excessive movement of the material during the conveying process, ensuring the safety of the material during the conveying process. The fixing mechanism 2 is used to fix the module, ensuring the stability of the module during the welding process and ensuring the accuracy and reliability of the welding process.

[0042] Please see the appendix Figure 2 and attached Figure 4The fixing mechanism 2 includes a motor 201, the top of which is fixedly connected to the bottom of the fixing block 3. A limit box 203 is fixedly connected between adjacent fixing blocks 3. A rotating rod 202 is fixedly connected to the output end of the motor 201. A connecting rod 204 is rotatably connected to the left and right ends of the rotating rod 202. A clamping part 205 is fixedly connected to the other end of the connecting rod 204. The outer wall of the clamping part 205 is slidably connected to the inner wall of the limit box 203. A short connecting rod 206 is rotatably connected to the left side of the rotating rod 202. A connecting column 207 is rotatably connected to the left side of the short connecting rod 206. A push rod 208 is rotatably connected to the top of the connecting column 207. A limit strip 209 is fixedly connected between adjacent right sides of the fixing block 3. The inner wall of the limit strip 209 is slidably connected to the outer wall of the push rod 208.

[0043] Specifically, the limiting box 203 is a key component that limits the range of motion, ensuring that the clamping part 205 moves precisely within a predetermined trajectory. The output end of the motor 201 is fixedly connected to the rotating rod 202 through a precision transmission device. The clamping part 205 is the component in the mechanism used to perform specific operations. Its outer wall can slide on the inner wall of the limiting box 203. The top of the connecting column 207 is rotatably connected to the push rod 208. The multi-layered transmission design ensures the high efficiency of power transmission and increases the stability and reliability of the mechanism.

[0044] Please see the appendix Figure 1 and attached Figure 2 Each conveyor frame 10 has a support column 16 fixedly connected to its bottom. A horizontal connecting rod 17 is fixedly connected between adjacent support columns 16. A longitudinal connecting rod 18 is fixedly connected between adjacent support columns 16. A controller 19 is fixedly connected to the front right side of the reflow oven 1. The controller 19 is electrically connected to motor 4 and motor 201. A screw 20 is fixedly connected to the front left side of the reflow oven 1. An information plate 21 is fixedly connected to the outer wall of the screw 20.

[0045] Specifically, the support column 16 provides structural support, ensuring the stability and load-bearing capacity of the entire conveyor frame 10. The horizontal connecting rod 17 and the vertical connecting rod 18 enhance the lateral stability of the structure and provide additional rigidity to the entire conveyor frame 10. The controller 19 establishes a precise electrical connection with the second motor 4 and the first motor 201, ensuring precise control of the motor and automation of the welding process. The information board 21 provides operators with necessary reference data, facilitating equipment management and maintenance.

[0046] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3A platform 22 is fixedly connected to the top of the fixed block 3, a processing machine 23 is fixedly connected to the right side of the conveyor 10, an observation door 25 is rotatably connected to the front of the reflow oven 1, a handle 26 is fixedly connected to the lower side of the observation door 25, and support columns 27 are fixedly connected to the four corners of the reflow oven 1, with anti-slip pads 24 fixedly connected to the bottom of the support columns 27.

[0047] Specifically, the observation door 25 allows operators to easily observe the welding process and ensure welding quality. A handle 26 is fixedly connected to the lower side of the observation door 25 for easy operation, the support column 27 enhances the stability of the equipment, and the anti-slip pad 24 at the bottom ensures the equipment's stability in various working environments.

[0048] Working principle: When the circuit board is soldered, the controller 19 is activated to start the motor 4. The motor 4 drives multiple power wheels 7 to rotate via the transmission belt 8. The power wheels 7 rotate via the shaft 5 to drive multiple transmission wheels 6, which in turn causes the conveyor belt 9 to move the circuit board towards the first limit stop 12. The first correction wheel 11 corrects the position of the circuit board, and then it moves towards the second limit stop 14. The second correction wheel 13 corrects the position again, and the circuit board moves to the next step via the limit block 15. The automatic transmission function enables rapid material output, reduces manual intervention, and improves the efficiency of the overall production line. The equipment can work continuously, reducing downtime. The correction function ensures the accurate position of the PCB during the output process, avoiding assembly problems caused by positional deviations, and helps to improve soldering quality and yield.

[0049] When the circuit board is soldered in the reflow oven 1, the motor 201 drives the rotating rod 202 to rotate. The rotating rod 202 pulls the connecting rod 204 to move the clamping part 205 in the limiting box 203 to clamp the circuit board and complete the soldering. The rotation of the rotating rod 202 will pull the short connecting rod 206 to move the push rod 208 in the limiting bar 209 towards the circuit board, pushing the circuit board towards the conveyor belt. The fixed clamp can firmly fix the PCB and avoid movement and tilting during the unloading process, thereby improving the stability and reliability of the product, ensuring that the position of the PCB remains unchanged during unloading, reducing possible errors in the soldering process, and improving soldering quality and yield.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An SMT reflow oven unloading device, comprising a reflow oven (1), characterized in that: The reflow oven (1) has fixed blocks (3) fixedly connected to the left and right sides of its inner wall. The reflow oven (1) has a motor (4) fixedly connected to the right inner wall. The output end of the motor (4) is fixedly connected to a power wheel (7). A rotating shaft (5) is rotatably connected between the two adjacent fixed blocks (3). The middle of the rotating shaft (5) is fixedly connected to the power wheel (7). The outer walls of the two power wheels (7) are connected by a transmission belt (8). The front and rear ends of the rotating shaft (5) are fixedly connected to transmission wheels (6). The right side of the outer wall of the reflow oven (1) is fixedly connected to a conveyor frame (10). The adjacent sides of the two conveyor frames (10) are rotatably connected to transmission wheels (6). Multiple transmission wheels (6) The outer walls are connected by a conveyor belt (9). The top of the front and rear sides of the conveyor frame (10) is rotatably connected to a first correcting wheel (11). The middle of the conveyor frame (10) is fixedly connected to a first limiting stop (12). The top of the first limiting stop (12) is rotatably connected to the top of the first correcting wheel (11). The right side of the conveyor frame (10) is fixedly connected to a second limiting stop (14). The top inner wall of the second limiting stop (14) is rotatably connected to a second correcting wheel (13). The top right side of the conveyor frame (10) is fixedly connected to a limiting block (15). The reflow oven (1) is equipped with a fixing mechanism (2). The fixing mechanism (2) is used to fix the module.

2. The SMT reflow oven unloading device according to claim 1, characterized in that: The fixing mechanism (2) includes a motor (201), the top of which is fixedly connected to the bottom of the fixing block (3). Limit boxes (203) are fixedly connected between adjacent motors (201). A rotating rod (202) is fixedly connected to the output end of the fixing block (3). A connecting rod (204) is rotatably connected to the left and right ends of the rotating rod (202). A clamping part (205) is fixedly connected to the other end of the connecting rod (204). The outer wall of component (205) is slidably connected to the inner wall of the limiting box (203). A short connecting rod (206) is rotatably connected to the left side of the rotating rod (202). A connecting column (207) is rotatably connected to the left side of the short connecting rod (206). A push rod (208) is rotatably connected to the top of the connecting column (207). A limiting strip (209) is fixedly connected between adjacent right sides of the fixing block (3). The inner wall of the limiting strip (209) is slidably connected to the outer wall of the push rod (208).

3. The SMT reflow oven unloading device according to claim 1, characterized in that: Each of the conveyor frames (10) is fixedly connected to a support column (16), and a horizontal connecting rod (17) is fixedly connected between adjacent supports (16), and a vertical connecting rod (18) is fixedly connected between adjacent supports (16).

4. The SMT reflow oven unloading device according to claim 1, characterized in that: A controller (19) is fixedly connected to the front right side of the reflow oven (1), and the controller (19) is electrically connected to motor two (4) and motor one (201).

5. The SMT reflow oven unloading device according to claim 1, characterized in that: A screw (20) is fixedly connected to the left front part of the reflow oven (1), and an information plate (21) is fixedly connected to the outer wall of the screw (20).

6. The SMT reflow oven unloading device according to claim 1, characterized in that: The top of the fixed block (3) is fixedly connected to a platform (22), and the right side of the conveyor (10) is fixedly connected to a processing machine (23).

7. The SMT reflow oven unloading device according to claim 1, characterized in that: The front side of the reflow oven (1) is rotatably connected to an observation door (25), and the lower side of the observation door (25) is fixedly connected to a handle (26).

8. The SMT reflow oven unloading device according to claim 1, characterized in that: The reflow oven (1) is fixedly connected to four corners with support columns (27), and the bottom of the support columns (27) is fixedly connected with anti-slip pads (24).

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