A reflow soldering apparatus anti-deviation web belt assembly

Abstract

This utility model discloses an anti-deviation conveyor belt assembly for reflow soldering equipment, including a reflow soldering machine. The reflow soldering machine has an adjustable conveyor belt inside and an anti-deviation mechanism. The anti-deviation mechanism includes mounting seats, mounting holes, fixed seats, limit frames, assembly holes, support frames, and positioning rollers. The bottom wall of the reflow soldering machine has evenly distributed mounting seats on both the front and rear sides, each with mounting holes on its upper surface. The reflow soldering machine also has evenly distributed fixed seats on both the front and rear sides inside, each with a limit frame on its upper surface. The limit frames have evenly distributed assembly holes on their outer surfaces. A support frame is located between two adjacent limit frames. This utility model uses the anti-deviation mechanism to maintain appropriate tension on the conveyor belt during operation, ensuring the conveyor belt maintains linear motion and preventing the conveyor belt and accessories from being scrapped due to deviation.

Description

Technical Field

[0001] This utility model relates to the field of reflow soldering equipment technology, specifically to a reflow soldering equipment anti-deviation mesh belt assembly. Background Technology

[0002] Reflow soldering equipment is a device used to solder surface mount components onto printed circuit boards. It is widely used in the electronics manufacturing industry because of its advantages such as high soldering quality, high production efficiency and minimal damage to components.

[0003] When using existing reflow soldering equipment, the operator usually places the object to be soldered on a mesh belt, which then transports the object through the preheating zone, constant temperature zone, reflow zone, and cooling zone to complete the soldering process.

[0004] Existing reflow soldering equipment has the following problems: during long-term operation, the long and wide mesh belt may shift, leading to the scrapping of both the mesh belt and accessories. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a reflow soldering equipment anti-deviation mesh belt assembly. The anti-deviation mechanism keeps the mesh belt under appropriate tension during operation, ensuring that the mesh belt maintains straight movement during operation. This avoids the situation where the mesh belt and accessories are scrapped due to mesh belt deviation, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reflow soldering equipment anti-deviation mesh belt assembly, including a reflow soldering machine, an adjustable mesh belt inside the reflow soldering machine, and an anti-deviation mechanism;

[0007] The anti-deviation mechanism includes a mounting base, mounting holes, a fixed base, a limiting frame, assembly holes, a support frame, and positioning rollers. The bottom wall of the reflow soldering machine is provided with evenly distributed mounting bases on both the front and rear sides. The upper surface of each mounting base is provided with mounting holes. The interior of the reflow soldering machine is provided with evenly distributed fixed bases on both the front and rear sides. The upper surface of each fixed base is provided with a limiting frame. The outer surface of each limiting frame is provided with evenly distributed assembly holes. A support frame is provided between two adjacent limiting frames. The inside of each support frame is rotatably connected to a positioning roller via a rotating rod. The outer surface of each positioning roller is in contact with the outer surface of the mesh belt.

[0008] Furthermore, the fixed bases are all installed with adjacent mounting holes by bolts and nuts, and the front and rear sides of the support frame are also installed with adjacent assembly holes by bolts and nuts, which facilitates the installation of the anti-deviation mechanism.

[0009] Furthermore, it also includes a controller, which is located on the front side of the reflow soldering machine. The input terminal of the controller is electrically connected to an external power supply to facilitate the normal operation of the equipment.

[0010] Furthermore, it also includes a limiting mechanism, which includes a limiting rod, a limiting plate, and a bidirectional lead screw. The reflow soldering machine has limiting rods on both the left and right sides inside, and the front and rear sides between the two limiting rods are slidably connected to the limiting plate. The upper right side of the reflow soldering machine is provided with a protective cover, and the inside of the protective cover is rotatably connected to the bidirectional lead screw. The threaded holes on the right side of the limiting plate are threadedly connected to the outer surface of the bidirectional lead screw, which facilitates the limiting of the object to be welded.

[0011] Furthermore, a motor is provided on the front side of the protective cover. The rear end of the output shaft of the motor is fixedly connected to the front end of the bidirectional lead screw. The input end of the motor is electrically connected to the output end of the controller to provide driving force.

[0012] Furthermore, the upper left and right sides of the reflow soldering machine are rotatably connected to conveyor rollers via rotating shafts, and the lower left and right sides of the reflow soldering machine are rotatably connected to limit rollers. The two conveyor rollers and the two limit rollers are connected by a mesh belt drive to facilitate the transportation work.

[0013] Furthermore, each of the outer surfaces of the rotating shaft is fixedly fitted with a sprocket, and the two sprockets are connected by a chain drive. The reflow soldering machine is equipped with a second motor. The rear end of the output shaft of the second motor is fixedly connected to the front end of the left rotating shaft. The input end of the second motor is electrically connected to the output end of the controller to provide driving force.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The fixed seat and the limiting frame are installed together on the mounting hole of the mounting base with bolts and nuts. A support frame is installed between two adjacent limiting frames. The front and rear ends of the support frame are installed with two adjacent mounting holes at the same horizontal level with bolts and nuts. The outer surface of the positioning roller is in contact with the outer surface of the mesh belt. By adjusting the mounting holes on the limiting frame and the support frame vertically, as well as adjusting the fixed seat and the mounting base horizontally, the imbalance and deviation of the mesh belt can be adjusted. This ensures that the mesh belt maintains appropriate tension during operation and keeps the mesh belt moving in a straight line during operation, avoiding the situation where the mesh belt and accessories are scrapped due to mesh belt deviation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of section B of this utility model;

[0020] Figure 5 This is a schematic diagram of the anti-deviation mechanism of this utility model;

[0021] Figure 6 This is an enlarged structural schematic diagram of point C of this utility model.

[0022] In the diagram: 1 Reflow soldering machine, 2 Controller, 3 Anti-deviation mechanism, 31 Mounting base, 32 Mounting hole, 33 Fixed base, 34 Limiting frame, 35 Assembly hole, 36 Support frame, 37 Positioning roller, 4 Mesh belt, 5 Protective cover, 6 Limiting mechanism, 61 Limiting rod, 62 Limiting plate, 63 Bidirectional lead screw, 7 Motor 1, 8 Rotary shaft, 9 Conveyor roller, 10 Sprocket, 11 Chain, 12 Motor 2, 13 Limiting roller. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 This embodiment provides a technical solution: a reflow soldering equipment anti-deviation mesh belt assembly, including a reflow soldering machine 1 and a controller 2. The reflow soldering machine 1 is equipped with an adjustable mesh belt 4 inside, and the controller 2 is located on the front side of the reflow soldering machine 1. The input end of the controller 2 is electrically connected to an external power supply.

[0025] The reflow soldering machine 1 consists of a heating system, a conveying system, a temperature control system, a cooling system, and an oven cavity, as per existing technologies. The heating system is the core of the reflow soldering machine, responsible for providing the temperature profile required for soldering, ensuring the solder paste undergoes a complete soldering process of preheating, heat preservation, reflow, and cooling. Hot air circulation heating uses a fan to drive hot air to circulate within the oven cavity, uniformly heating the PCB and components. The conveying system uses a conveyor belt 4 to move the PCB, carrying it and ensuring it passes through the oven cavity at a set speed, ensuring the stability and continuity of the soldering process. The temperature control system precisely controls the temperature of each zone within the oven cavity to ensure compliance with soldering process requirements. Specifically, temperature sensors are mostly thermocouples, distributed at the top, bottom, or sides of the oven cavity, monitoring the temperature in real time. The cooling system rapidly cools the solder paste after reflow, causing it to solidify and form reliable solder joints. Specifically, forced air cooling uses a fan to blow cold air to accelerate cooling, offering low cost, easy maintenance, and suitability for most scenarios. The oven cavity is the physical space for heating and soldering; its design directly affects temperature uniformity and thermal efficiency. The oven cavity shell uses insulating materials (such as ceramic fiber) to reduce heat loss.

[0026] The system also includes an anti-deviation mechanism 3. The anti-deviation mechanism 3 includes a mounting base 31, mounting holes 32, a fixed base 33, a limiting frame 34, assembly holes 35, a support frame 36, and a positioning roller 37. The bottom wall of the reflow soldering machine 1 is provided with evenly distributed mounting bases 31 on both the front and rear sides. The upper surface of each mounting base 31 is provided with mounting holes 32. The interior of the reflow soldering machine 1 is provided with evenly distributed fixed bases 33 on both the front and rear sides. The upper surface of each fixed base 33 is provided with a limiting frame 34. The outer surface of each limiting frame 34 is provided with evenly distributed assembly holes 35. A support frame 36 is provided between two adjacent limiting frames 34. The interior of each support frame 36 is rotatably connected to a positioning roller 37 via a rotating rod. The outer surface of each positioning roller 37 is in contact with the outer surface of the mesh belt 4. The fixed bases 33 are installed with adjacent mounting holes 32 by bolts and nuts. The front and rear sides of the support frame 36 are installed with adjacent assembly holes 35 by bolts and nuts.

[0027] The system also includes a limiting mechanism 6; the limiting mechanism 6 includes a limiting rod 61, a limiting plate 62, and a bidirectional lead screw 63. Limiting rods 61 are provided on both the left and right sides inside the reflow soldering machine 1. Limiting plates 62 are slidably connected to the front and rear sides between the two limiting rods 61. A protective cover 5 is provided on the right side of the upper surface of the reflow soldering machine 1. The bidirectional lead screw 63 is rotatably connected inside the protective cover 5. The threaded holes on the right side of the limiting plate 62 are threaded to the outer surface of the bidirectional lead screw 63. A bellows is fitted onto the exposed portion of the outer surface of the bidirectional lead screw 63, and the ends of the bellows... The bellows are fixedly connected to the side of the limiting plate 62 and the inner wall of the protective cover 5 respectively. The bellows are reserved with sufficient length. When the limiting plate 62 moves, the bellows on one side retracts and the bellows on the other side extends, so that when the bidirectional lead screw 63 is working, the bellows always wraps around and shields the bidirectional lead screw 63 to prevent dust from affecting the thread transmission of the bidirectional lead screw 63 and the limiting plate 62. The front side of the protective cover 5 is equipped with a motor 7. The rear end of the output shaft of the motor 7 is fixedly connected to the front end of the bidirectional lead screw 63. The input end of the motor 7 is electrically connected to the output end of the controller 2.

[0028] The reflow soldering machine 1 has conveyor rollers 9 rotatably connected to the upper left and right sides of the interior via a rotating shaft 8, and limit rollers 13 rotatably connected to the lower left and right sides of the interior. The two conveyor rollers 9 and the two limit rollers 13 are connected by a mesh belt 4. The front end of the outer surface of the rotating shaft 8 is fixedly fitted with a sprocket 10, and the two sprockets 10 are connected by a chain 11. The reflow soldering machine 1 has a second motor 12 inside. The rear end of the output shaft of the second motor 12 is fixedly connected to the front end of the rotating shaft 8 on the left side. The input end of the second motor 12 is electrically connected to the output end of the controller 2.

[0029] The working principle of this utility model is as follows:

[0030] The staff operates the controller 2 to turn on the motor 7. The output shaft of the motor 7 drives the bidirectional lead screw 63 to rotate. The rotation of the bidirectional lead screw 63 causes the limit plates 62 connected by threads on both sides to move towards each other along the limit rod 61.

[0031] After adjusting the limiting plate 62 to the appropriate position, place the object on the mesh belt 4 between the two limiting plates 62, and then turn on the second motor 12. The output shaft of the second motor 12 drives the left rotating shaft 8 to rotate. The rotation of the left rotating shaft 8 drives the right rotating shaft 8 to rotate through the sprocket 10 and chain 11. The rotation of the rotating shaft 8 drives the mesh belt 4 to run through the conveyor roller 9. The mesh belt 4 transports the object from left to right. At the same time, turn on the reflow soldering machine 1. Hot air circulation heating is driven by the fan to circulate hot air in the furnace cavity to heat the object evenly. Forced air cooling is accelerated by the fan blowing cold air to cool down. The temperature sensor monitors the temperature in real time, so that the object passes through the preheating zone, constant temperature zone, reflow zone and cooling zone in sequence to complete the welding work.

[0032] To prevent the mesh belt 4 from shifting during long-term operation, the operator can install the fixed seat 33 together with the limiting frame 34 on the mounting hole 32 of the mounting base 32 using bolts and nuts. Then, a support frame 36 is installed between two adjacent limiting frames 34. The front and rear ends of the support frame 36 are installed with two adjacent mounting holes 35 at the same horizontal level using bolts and nuts, so that the outer surface of the positioning roller 37 contacts the outer surface of the mesh belt 4. By adjusting the mounting holes 35 on the limiting frame 34 and the support frame 36 vertically, as well as adjusting the fixed seat 33 and the mounting base 32 horizontally, the imbalance and deviation of the mesh belt 4 can be adjusted to maintain appropriate tension during operation and prevent the mesh belt 4 from shifting.

[0033] It is worth noting that the reflow soldering machine 1 disclosed in the above embodiments can be a GSD series hot air reflow soldering machine, the controller 2 can be a C8051F005, and the motor 7 and motor 12 can be V5IK60A-CF. The controller 2 controls the operation of the reflow soldering machine 1, the motor 7 and the motor 12 using methods commonly used in the prior art.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A reflow soldering equipment anti-deviation mesh belt assembly, comprising a reflow soldering machine (1), wherein the reflow soldering machine (1) is provided with an adjustable mesh belt (4), characterized in that: It also includes an anti-deviation mechanism (3); The anti-deviation mechanism (3) includes a mounting base (31), mounting holes (32), a fixed base (33), a limiting frame (34), an assembly hole (35), a support frame (36), and a positioning roller (37). The bottom wall of the reflow soldering machine (1) is provided with evenly distributed mounting bases (31) on both the front and rear sides. The upper surface of the mounting base (31) is provided with mounting holes (32). The interior of the reflow soldering machine (1) is provided with evenly distributed fixed bases (33) on both the front and rear sides. The upper surface of the fixed base (33) is provided with a limiting frame (34). The outer surface of the limiting frame (34) is provided with evenly distributed assembly holes (35). A support frame (36) is provided between two adjacent limiting frames (34). The interior of the support frame (36) is rotatably connected to the positioning roller (37) through a rotating rod. The outer surface of the positioning roller (37) is in contact with the outer surface of the mesh belt (4).

2. The anti-deviation mesh belt assembly for reflow soldering equipment according to claim 1, characterized in that: The fixed base (33) is installed with the adjacent mounting hole (32) by bolts and nuts, and the front and rear sides of the support frame (36) are installed with the adjacent assembly hole (35) by bolts and nuts.

3. The anti-deviation mesh belt assembly for reflow soldering equipment according to claim 1, characterized in that: It also includes a controller (2), which is located on the front side of the reflow soldering machine (1), and the input terminal of the controller (2) is electrically connected to an external power supply.

4. The anti-deviation mesh belt assembly for reflow soldering equipment according to claim 3, characterized in that: It also includes a limiting mechanism (6), which includes a limiting rod (61), a limiting plate (62) and a bidirectional screw (63). The reflow soldering machine (1) is provided with limiting rods (61) on both the left and right sides. The front and rear sides of the two limiting rods (61) are slidably connected to the limiting plate (62). The upper surface of the reflow soldering machine (1) is provided with a protective cover (5). The inside of the protective cover (5) is rotatably connected to the bidirectional screw (63). The threaded holes on the right side of the limiting plate (62) are threadedly connected to the outer surface of the bidirectional screw (63).

5. The anti-deviation mesh belt assembly for reflow soldering equipment according to claim 4, characterized in that: The front side of the protective cover (5) is provided with a motor (7), the rear end of the output shaft of the motor (7) is fixedly connected to the front end of the bidirectional lead screw (63), and the input end of the motor (7) is electrically connected to the output end of the controller (2).

6. The anti-deviation mesh belt assembly for reflow soldering equipment according to claim 3, characterized in that: The reflow soldering machine (1) has conveyor rollers (9) rotatably connected to the upper left and right sides of the interior via a rotating shaft (8), and limit rollers (13) rotatably connected to the lower left and right sides of the interior. The two conveyor rollers (9) and the two limit rollers (13) are connected by a mesh belt (4).

7. The anti-deviation mesh belt assembly for reflow soldering equipment according to claim 6, characterized in that: The outer surface of the rotating shaft (8) is fixedly fitted with sprockets (10), and the two sprockets (10) are connected by a chain (11). The reflow soldering machine (1) is equipped with a second motor (12). The rear end of the output shaft of the second motor (12) is fixedly connected to the front end of the rotating shaft (8) on the left side. The input end of the second motor (12) is electrically connected to the output end of the controller (2).

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