Reflow oven for circuit board production
The automated unloading of circuit boards is achieved through a rotating disk and push plate structure, which solves the problems of manual contact with high temperatures and the reciprocating motion of robotic arms, thereby improving production efficiency and safety.
Patent Information
- Application Number
- CN202423161067.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing reflow ovens used in PCB manufacturing pose risks of human contact with high temperatures during the material feeding process and low production efficiency due to the reciprocating motion of robotic arms.
The system employs a rotating disk and push plate structure. The rotating disk drives the circuit board to rotate to the rear of the push plate. Combined with the L-shaped plate and the push plate, it achieves automated material feeding, avoids manual contact with high temperatures, and reduces the reciprocating motion of the robotic arm.
It improved the smoothness and efficiency of circuit board feeding, reduced safety risks, and enhanced overall production efficiency.
Smart Images
Figure CN223616919U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of circuit board manufacturing technology, and in particular relates to a reflow oven for circuit board manufacturing. Background Technology
[0002] A reflow oven, also known as a surface mount device, is a piece of equipment used in the surface mount manufacturing process. Its working principle is to heat the solder paste to form a liquid solder on the pads of the PCB. Then, the components to be soldered (mounted components) are placed on the PCB to connect with the pads, ultimately forming a reliable solder joint. A reflow oven typically consists of guide rails, a preheating zone, a soldering zone, and a cooling zone.
[0003] In existing reflow ovens used for PCB manufacturing, PCBs are typically unloaded manually or by robotic arms. However, manual unloading involves direct contact with the high-temperature PCBs and equipment, increasing the risk of burns and other safety hazards. Using robotic arms requires reciprocating motion, which necessitates stopping the reflow oven to wait for the robotic arms to move, resulting in low efficiency and reduced production efficiency. Utility Model Content
[0004] This utility model provides a reflow oven for circuit board production, aiming to solve the problems of manual unloading of circuit boards that require direct contact with high temperatures and the need for reciprocating motion of robotic arms when unloading circuit boards.
[0005] This utility model is implemented as follows: a reflow oven for circuit board production includes an oven body, a guide rail for placing circuit boards is provided in the middle of the oven body, a support plate is provided at the rear end of the oven body, a rotating disk for placing circuit boards is rotatably provided on the support plate, a bracket is provided at the rear end of the support plate, a support column is fixedly connected to the bracket, the bottom end of the support column is rotatably connected to the middle of the rotating disk, a support plate is provided on the front side of the surface of the support column that can be raised and lowered, an L-shaped plate for supporting circuit boards is movably provided on the front side of the support plate, a plurality of transverse grooves adapted to the L-shaped plate are formed on the surface of the rotating disk along its radial direction, and a push plate for pushing the circuit boards out is provided on the rear side of the surface of the support column.
[0006] Preferably, a first motor is vertically fixedly connected to the top of the support plate, a first gear is fixedly connected to the output shaft of the first motor, a rotating shaft is rotatably provided in the middle of the support plate, and a second gear that meshes with the first gear is rotatably provided on the surface of the rotating shaft.
[0007] Preferably, both sides of the support plate are vertically provided with arc-shaped plates, and the arc-shaped plates are provided with sliding grooves. The bottom of the rotating disk is fixedly connected with a protrusion that matches the sliding groove.
[0008] Preferably, a second motor is fixedly connected to the top of the support column, a threaded rod is fixedly connected to the output shaft of the second motor, a threaded sleeve is threadedly connected to the surface of the threaded rod, a connecting block is fixedly connected to the surface of the threaded sleeve, and the support plate is fixedly connected to the surface of the connecting block.
[0009] Preferably, a first electric telescopic rod is horizontally fixedly connected to the top of the support plate, and the L-shaped plate is fixedly connected to the front end of the first electric telescopic rod.
[0010] Preferably, a second electric telescopic rod is laterally fixedly connected to the rear side of the surface of the support column, and the push plate is fixedly connected to the rear end of the second electric telescopic rod. Beneficial effects
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The reflow oven for circuit board production of this utility model first places the circuit board in the guide rail for heating, welding and cooling. Then the circuit board moves to the rear end through the guide rail, and then rises to the bottom of the circuit board through the L-shaped plate to receive the circuit board. Then the L-shaped plate is lowered until it enters the horizontal groove. Then the support plate is moved backward to drive the L-shaped plate away from the horizontal groove. Finally, the turntable is rotated to make the circuit board rotate to the back side of the push plate. Then the push plate is started to unload the circuit board. This improves the smoothness of circuit board unloading, improves work efficiency, and thus further improves production efficiency. Attached Figure Description
[0012] Figure 1 This is a front sectional view of the present invention.
[0013] Figure 2 This is a partial enlarged structural diagram of part A in this utility model;
[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating disk in this utility model.
[0015] In the diagram: 1. Furnace body; 2. Support plate; 3. First motor; 4. Rotating shaft; 5. Horizontal groove; 6. Arc plate; 7. L-shaped plate; 8. First electric telescopic rod; 9. Second motor; 10. Bracket; 11. Support column; 12. Threaded sleeve; 13. Second electric telescopic rod; 14. Push plate; 15. Protrusion; 16. Slide groove; 17. First gear; 18. Second gear; 19. Support plate; 20. Connecting block; 21. Circuit board; 22. Rotating disk; 23. Guide rail; 24. Threaded rod. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0017] Please see Figure 1-3 This utility model provides a technical solution: a reflow oven for circuit board production, including an oven body 1. A guide rail 23 for placing circuit boards 21 is provided in the middle of the oven body 1. A support plate 2 is provided at the rear end of the oven body 1. A rotating disk 22 for placing circuit boards 21 is rotatably provided on the support plate 2. A bracket 10 is provided at the rear end of the support plate 2. A support column 11 is fixedly connected to the bracket 10. The bottom end of the support column 11 is rotatably connected to the middle of the rotating disk 22. A support plate 19 is provided on the front side of the surface of the support column 11. An L-shaped plate 7 for supporting the circuit boards 21 is movably provided on the front side of the support plate 19. A plurality of transverse grooves 5 adapted to the L-shaped plate 7 are opened along the radial direction on the surface of the rotating disk 22. A push plate 14 for pushing the circuit boards 21 out of the rear side of the surface of the support column 11 is provided.
[0018] In this embodiment, the furnace body 1 is the main part of the entire equipment, which is used to house and provide the necessary environment for heat treatment, welding and cooling of the circuit board 21.
[0019] The guide rail 23 is used to support and guide the movement of the circuit board 21 within the furnace body 1.
[0020] The circuit board 21 is rotated to the rear by rotating the rotating disk 22 to unload the circuit board 21.
[0021] The circuit board 21 can be removed from the guide rail 23 by using the L-shaped plate 7, and the circuit board 21 can be placed on the rotating disk 22 for material cutting.
[0022] First, the circuit board 21 is placed in the guide rail 23 for heating, welding, and cooling. Then, the circuit board 21 moves to the rear end through the guide rail 23. Next, it rises to the bottom of the circuit board 21 via the L-shaped plate 7 and is received on the L-shaped plate 7. Then, the L-shaped plate 7 is lowered until it enters the transverse groove 5. Then, the support plate 19 is moved backward to move the L-shaped plate 7 away from the transverse groove 5. Finally, the rotating disk 22 is rotated to make the circuit board 21 rotate to the rear side of the push plate 14. Then, the push plate 14 is activated to unload the circuit board 21.
[0023] Furthermore, a first motor 3 is vertically fixedly connected to the top of the support disk 2, and a first gear 17 is fixedly connected to the output shaft of the first motor 3. A rotating shaft 4 is rotatably provided in the middle of the support disk 2, and a second gear 18 that meshes with the first gear 17 is rotatably provided on the surface of the rotating shaft 4.
[0024] In this embodiment, when the first motor 3 starts, its output shaft drives the first gear 17 to rotate. Since the first gear 17 meshes with the second gear 18, the second gear 18 will also rotate. Since the second gear 18 is fixedly connected to the rotating shaft 4, the rotating shaft 4 will also rotate. Finally, the rotation of the rotating shaft 4 will drive the rotating disk 22 to rotate, realizing the feeding, rotating and feeding operations of the circuit board 21.
[0025] Furthermore, both sides of the support plate 2 are vertically provided with arc-shaped plates 6, and the arc-shaped plates 6 are provided with sliding grooves 16. The bottom of the rotating plate 22 is fixedly connected with a protrusion 15 that matches the sliding groove 16.
[0026] In this embodiment, when the rotating disk 22 rotates, the protrusion 15 at its bottom slides in the groove 16 on the arc plate 6. The protrusion 15 can slide stably along the groove 16, thereby driving the rotating disk 22 to rotate. At the same time, the design of the arc plate 6 and the groove 16 also restricts the radial and axial movement of the rotating disk, ensuring the stability and accuracy of the rotation.
[0027] Furthermore, a second motor 9 is fixedly connected to the top of the support column 11, and a threaded rod 24 is fixedly connected to the output shaft of the second motor 9. A threaded sleeve 12 is threadedly connected to the surface of the threaded rod 24, and a connecting block 20 is fixedly connected to the surface of the threaded sleeve 12. The support plate 19 is fixedly connected to the surface of the connecting block 20.
[0028] In this embodiment, when it is necessary to adjust the height of the support plate 19, the second motor 9 is started, and its output shaft drives the threaded rod 24 to rotate. Since the threaded rod 24 and the threaded sleeve 12 are connected by threads, when the threaded rod 24 rotates, the threaded sleeve 12 will move along the axial direction of the threaded rod 24. As the threaded sleeve 12 moves, the connecting block 20 and the support plate 19 will also rise and fall accordingly, thereby realizing the adjustment of the height of the L-shaped plate 7.
[0029] Furthermore, a first electric telescopic rod 8 is horizontally fixedly connected to the top of the support plate 19, and the L-shaped plate 7 is fixedly connected to the front end of the first electric telescopic rod 8.
[0030] In this embodiment, when it is necessary to place the circuit board 21 on the rotating disk 22, firstly, by adjusting the height of the support plate 19, the L-shaped plate 7 is positioned inside the transverse groove 5. Then, the first electric telescopic rod 8 is activated, causing its front end to move the L-shaped plate 7 backward until the L-shaped plate 7 is away from the circuit board 21. Then, the support plate 19 is raised to raise the L-shaped plate 7, thus placing the circuit board 21 on the rotating disk 22.
[0031] Furthermore, a second electric telescopic rod 13 is laterally fixedly connected to the rear side of the surface of the support column 11, and the push plate 14 is fixedly connected to the rear end of the second electric telescopic rod 13.
[0032] In this embodiment, when it is necessary to unload the circuit board 21 from the rotating disk 22, the second electric telescopic rod 13 is activated, causing its rear end to drive the push plate 14 to move backward, thereby driving the circuit board 21 to unload.
[0033] The working principle and usage process of this utility model are as follows: After the utility model is installed, the circuit board 21 is first placed in the guide rail 23 for heating, welding and cooling. Then the circuit board 21 moves to the rear end through the guide rail 23, and then rises to the bottom of the circuit board 21 through the L-shaped plate 7 to receive the circuit board 21. Then the L-shaped plate 7 is lowered until it enters the transverse groove 5. Then the support plate 19 is moved backward to drive the L-shaped plate 7 away from the transverse groove 5. Finally, the rotating disk 22 is rotated to make the circuit board 21 rotate to the rear side of the push plate 14. Then the push plate 14 is started to make the circuit board 21 unloaded.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. A reflow oven for circuit board production, comprising an oven body (1), characterized in that: The furnace body (1) is provided with a guide rail (23) for placing the circuit board (21) in the middle. The furnace body (1) is provided with a support plate (2) at the rear end. The support plate (2) is rotatably provided with a rotating disk (22) for placing the circuit board (21). The support plate (2) is provided with a bracket (10) at the rear end. The support column (11) is fixedly connected to the bracket (10). The bottom end of the support column (11) is rotatably connected to the middle of the rotating disk (22). The front side of the surface of the support column (11) is provided with a support plate (19) that can be raised and lowered. The front side of the support plate (19) is provided with an L-shaped plate (7) for supporting the circuit board (21). The surface of the rotating disk (22) is provided with several horizontal grooves (5) that are adapted to the L-shaped plate (7) along its radial direction. The rear side of the surface of the support column (11) is provided with a push plate (14) for pushing the circuit board (21) to be unloaded.
2. The reflow oven for circuit board production as described in claim 1, characterized in that: The support plate (2) is vertically fixedly connected to the top of the first motor (3), and the output shaft of the first motor (3) is fixedly connected to the first gear (17). The support plate (2) is rotatably provided with a rotating shaft (4) in the middle, and the surface of the rotating shaft (4) is rotatably provided with a second gear (18) that meshes with the first gear (17).
3. The reflow oven for circuit board production as described in claim 1, characterized in that: The support plate (2) has a vertically arranged arc plate (6) on both sides, and a groove (16) is provided on the arc plate (6). The bottom of the rotating plate (22) is fixedly connected with a protrusion (15) that matches the groove (16).
4. The reflow oven for circuit board production as described in claim 1, characterized in that: The top of the support column (11) is fixedly connected to a second motor (9), the output shaft of the second motor (9) is fixedly connected to a threaded rod (24), the surface of the threaded rod (24) is threadedly connected to a threaded sleeve (12), the surface of the threaded sleeve (12) is fixedly connected to a connecting block (20), and the support plate (19) is fixedly connected to the surface of the connecting block (20).
5. The reflow oven for circuit board production as described in claim 1, characterized in that: The support plate (19) is horizontally fixedly connected to the top of the first electric telescopic rod (8), and the L-shaped plate (7) is fixedly connected to the front end of the first electric telescopic rod (8).
6. The reflow oven for circuit board production as described in claim 1, characterized in that: The second electric telescopic rod (13) is fixedly connected laterally to the rear side of the surface of the support column (11), and the push plate (14) is fixedly connected to the rear end of the second electric telescopic rod (13).