Solder flux guide structure of double-end press terminal soldering machine

Abstract

The utility model discloses a soldering flux flow guide structure of double -end presss from both sides and dips tin machine, especially in the soldering flux flow guide technical field, including the flow guide box, be provided with flow guide pressurizing subassembly on the flow guide box, flow guide pressurizing subassembly includes the liquid inlet cover of setting in the top of flow guide box, one end of liquid inlet cover has the rotation of the rotation rod, be provided with a plurality of stop plates on the rotation rod. The utility model discloses the combination design of helical booster blade and flow guide cavity, on one hand, utilize the pressurization of helical blade, ensure that soldering flux is transported with stable pressure, avoid the local coverage not in place due to the pressure shortage, on the other hand, through the accurate guidance of flow guide cavity to soldering flux trajectory, prevent the flow disorder, realize the even coverage of soldering flux online material to be welded part, especially suitable for PLC module connection, computer host wiring and the scene of high welding precision requirement.

Description

Technical Field

[0001] This utility model relates to the field of flux guiding technology, and more specifically, to a flux guiding structure for a double-headed pressure end soldering machine. Background Technology

[0002] The double-head crimping and tinning machine is an automated device used for electronic wire harness processing. It can simultaneously crimp terminals and tin the ends of two wire harnesses. Through a high-precision servo motor and PLC control system, combined with a mechanical structure, it realizes automatic feeding, cutting, and stripping of wires, then crimps the terminals to the ends of the wires, and finally immerses the ends of the wires in a tin bath for tinning. It is mainly used in the 3C electronics industry, such as wire harness production for wiring between PLC modules, computer mainframes, terminal blocks, and other wiring applications.

[0003] Flux can remove oxides from the surface of wires and reduce the surface tension of tin, allowing tin to better wet the wire surface and thus achieve a good soldering effect. However, during the delivery process, it is not easy to guide the flux to evenly cover the wire to be soldered, resulting in localized lack of flux and problems such as cold solder joints and false solder joints. To address this, a flux guiding structure for a dual-head pressure end soldering machine is provided. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a flux guiding structure for a double-head pressure end tinning machine, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a flux guiding structure for a double-head pressure end tinning machine, including a guiding box, wherein a guiding pressurizing component is provided on the guiding box; The flow guiding and pressurizing assembly includes a liquid inlet cover disposed on the top of the flow guiding box, one end of which is rotatably connected to a rotating rod, and a plurality of sealing plates are disposed on the rotating rod; The flow guide box is equipped with two rotating shafts, and each rotating shaft has a number of booster blades on its outer side. A connecting plate is provided at one end of the flow guide box, and a conveying pipe is provided on the connecting plate.

[0006] Optionally, in a possible implementation, the bottom of the liquid inlet hood is provided with a connecting frame, the top of the flow guide box has a frame opening, the connecting frame is located at the top of the frame opening, and the connecting frame is installed on the flow guide box by bolts. A protective box is provided at the end of the flow guide box away from the connecting plate. Two meshing gears are provided inside the protective box, and each gear is located at one end of a corresponding rotating shaft. A motor is installed on the protective box by bolts, and the output end of the motor extends to one end of one of the gears. Optionally, in a possible implementation, two support sleeves are provided on the outer side of the liquid inlet hood, the rotating rod is inserted into the support sleeve and rotatably connected to the support sleeve, and the shape of the plurality of pressurizing blades is set as spiral, and a guide cavity is formed between each pair of adjacent pressurizing blades. The technical effects and advantages of this utility model are as follows: By combining spiral-shaped pressurizing blades and a flow guiding cavity, the design ensures stable flux delivery and avoids incomplete coverage due to insufficient pressure by utilizing the pressurizing effect of the spiral blades. On the other hand, the flow guiding cavity precisely guides the flux trajectory, preventing flow turbulence and achieving uniform flux coverage of the wire to be welded. This is especially suitable for scenarios with high welding precision requirements, such as PLC module wiring and computer host wiring.

[0007] By rotating the shaft to drive the sealing plate, the flow rate of flux into the guide box can be flexibly adjusted to meet the flux usage requirements of wire harnesses with different diameters. By controlling the speed of the servo motor, the rotation speed of the pressure booster blades can be adjusted, thereby changing the flux delivery pressure. This allows for both low-pressure and anti-spreading requirements for welding fine wires and high-pressure and strong coverage requirements for welding thick wires. Multi-specification wire harness processing can be achieved without changing the guide components, improving equipment versatility and reducing enterprise changeover costs. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0009] Figure 1 This is a front view of the overall structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the flow guide box, connecting plate, conveying pipe, protective box and motor of this utility model.

[0011] Figure 3 This is a schematic diagram of the liquid inlet cover, support sleeve, rotating shaft, sealing plate and connecting frame of this utility model.

[0012] Figure 4 This is a schematic diagram of the motor, shaft, booster blades, and gears of this utility model.

[0013] The attached diagram is labeled as follows: 1. Flow guide box; 2. Liquid inlet hood; 3. Rotating rod; 4. Sealing plate; 5. Connecting frame; 6. Frame opening; 7. Rotating shaft; 8. Pressure boosting blade; 9. Protective box; 10. Gear; 11. Motor; 12. Connecting plate; 13. Delivery pipe; 14. Support sleeve. Detailed Implementation

[0014] 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.

[0015] This embodiment discloses a flux guiding structure for a dual-head pressure end tinning machine, which aims to solve the problem in the prior art that the flux is difficult to evenly cover the wire to be soldered during the delivery process, and that local lack of flux can easily lead to poor soldering or false soldering. By optimizing the design of the guiding structure, the flux can be accurately and evenly delivered, thereby improving the quality of wire harness soldering.

[0016] Specifically, the flux guiding structure of this dual-head pressure-end soldering machine includes a guide box 1. The guide box 1, as the core load-bearing component for flux guiding, is made entirely of corrosion-resistant stainless steel. Its hollow interior forms a temporary storage and guiding channel for the flux, providing a basic space for the stable delivery of flux. A guiding and pressurizing component is installed on the guide box 1. This component undertakes the functions of flux introduction, pressurization, and delivery, and is a key structure for achieving uniform flux coverage.

[0017] The flow guiding and pressurizing assembly includes a liquid inlet hood 2 located at the top of the flow guiding box 1. The liquid inlet hood 2 has a funnel-shaped structure, with its larger end facing upwards to receive externally supplied flux, and its smaller end facing downwards to communicate with the inside of the flow guiding box 1. This allows the flux to flow quickly and centrally into the flow guiding box 1, preventing flux overflow and waste. Figure 3 As shown, the bottom of the liquid inlet cover 2 is integrally formed with a connecting frame 5, and its size is adapted to the frame opening 6 opened on the top of the flow guide box 1. The connecting frame 5 is located on the top of the frame opening 6, and the connecting frame 5 is fixedly installed on the flow guide box 1 by four evenly distributed bolts. This detachable connection method not only facilitates the installation and removal of the liquid inlet cover 2 and makes it convenient to clean and maintain the inside of the liquid inlet cover 2 and the frame opening 6 on the top of the flow guide box 1 in the later stage, but also ensures the sealing of the connection between the liquid inlet cover 2 and the flow guide box 1, and prevents flux from leaking from the connection.

[0018] At the same time, such as Figure 3As shown, two support sleeves 14 are symmetrically welded to the outer side of the liquid inlet cover 2. The axes of the two support sleeves 14 are collinear and consistent with the radial direction of the liquid inlet cover 2. The rotating rod 3 is inserted through the two support sleeves 14, and the rotating rod 3 and the support sleeves 14 are rotatably connected by bearings. The bearings can effectively reduce the frictional resistance between the rotating rod 3 and the support sleeves 14 when rotating, ensuring the smooth rotation of the rotating rod 3. On a section of the rotating rod 3 located inside the liquid inlet hood 2, several sealing plates 4 are evenly arranged along its axis. The sealing plates 4 are circular metal plates, and their diameter matches the inner diameter of the corresponding position inside the liquid inlet hood 2. By rotating the rotating rod 3, the sealing plates 4 can be rotated synchronously, thereby adjusting the gap between the sealing plates 4 and the inner wall of the liquid inlet hood 2, and controlling the speed at which flux flows into the guide box 1. When it is necessary to increase the flux flow rate, the rotating rod 3 can be rotated to increase the gap between the sealing plates 4 and the inner wall of the liquid inlet hood 2; when it is necessary to slow down the flow rate, the rotating rod 3 is rotated in the opposite direction to decrease the gap, thereby adapting to the flux flow rate requirements under different working conditions.

[0019] like Figure 4 As shown, two rotating shafts 7 are arranged parallel to each other along the length of the flow guide box 1. Both ends of the two rotating shafts 7 are rotatably connected to the side wall of the flow guide box 1 via bearings, ensuring stable rotation of the rotating shafts 7 within the flow guide box 1. Several pressure-boosting blades 8 are arranged on the outer side of each rotating shaft 7. The shape of each pressure-boosting blade 8 is spiral, and a flow guide cavity is formed between each pair of adjacent pressure-boosting blades 8. When the spiral pressure-boosting blades 8 rotate under the drive of the rotating shafts 7, they can, on the one hand, pressurize the flux within the flow guide box 1, increasing the flux delivery pressure and ensuring that the flux can be powerfully delivered to the part of the wire to be soldered; on the other hand, the flow guide cavity between adjacent pressure-boosting blades 8 can guide the flux, allowing it to flow stably along the trajectory of the flow guide cavity, avoiding turbulent flow of the flux within the flow guide box 1, and ensuring uniform flux delivery.

[0020] To achieve synchronous rotation of the two rotating shafts 7, such as Figure 2 , Figure 4 As shown, a protective box 9 is bolted to the end of the guide box 1 away from the connecting plate 12. The protective box 9 is made of metal and protects the internal transmission components, preventing external dust and impurities from entering and affecting the transmission effect. It also prevents operators from accidentally touching the transmission components and causing safety hazards. Inside the protective box 9, there are two meshing gears 10, and each gear 10 is fixed to one end of the corresponding rotating shaft 7 by a key connection. The two gears 10 have the same number of teeth and the same module, so that the two rotating shafts 7 rotate synchronously at the same speed. This allows the pressure boosting blades 8 on the two rotating shafts 7 to produce a uniform pressure and flow effect on the flux.

[0021] In addition, such as Figure 2 , Figure 4 As shown, a motor 11 is bolted to the protective housing 9. The motor 11 is a servo motor. The output end of the motor 11 is connected to one end of one of the gears 10 via a coupling. When the motor 11 starts, it drives the connected gear 10 to rotate. This gear 10 then drives the other gear 10 to rotate through meshing transmission, thereby achieving synchronous rotation of the two rotating shafts 7 and providing power for the rotation of the pressure-boosting blades 8. By controlling the speed of the motor 11, the rotation speed of the rotating shafts 7 and the pressure-boosting blades 8 can be adjusted, thereby adjusting the flux pressure and delivery speed according to actual needs and improving the applicability of the entire guide structure.

[0022] like Figure 1 , Figure 2 As shown, a connecting plate 12 is bolted to one end of the flow guide box 1. The center of the connecting plate 12 is connected to the flow guide channel inside the flow guide box 1. A conveying pipe 13 is provided on the connecting plate 12. One end of the conveying pipe 13 is fixed to the connecting plate 12 by a threaded connection, and the other end extends to the wire welding station of the double-headed end-coating soldering machine. The outlet end of the conveying pipe 13 is positioned corresponding to the part of the wire to be welded. The flux in the flow guide box 1, after being pressurized and guided, can enter the conveying pipe 13 through the connecting plate 12, and then be precisely delivered to the part of the wire to be welded by the conveying pipe 13, achieving uniform coverage of the flux.

[0023] The specific working principle is as follows: When using the flux guiding structure of this double-head pressure-end soldering machine, firstly, connect the external flux delivery equipment to the large end of the liquid inlet hood 2. Rotate the rotating rod 3 according to actual needs to adjust the gap between the sealing plate 4 and the inner wall of the liquid inlet hood 2, controlling the speed at which the flux flows into the guide box 1. Then, start the motor 11, which drives the gear 10 connected to it to rotate. This gear 10 drives another gear 10 to rotate through meshing transmission, thereby causing the two rotating shafts 7 to rotate synchronously. The spiral pressure-boosting blades 8 on the rotating shafts 7 rotate accordingly, pressurizing the flux in the guide box 1 and guiding the flux to flow stably through the guide cavity between adjacent pressure-boosting blades 8. Under the action of the pressure-boosting blades 8, the flux enters the delivery pipe 13 through the connecting plate 12 at a stable pressure and speed. Finally, the delivery pipe 13 accurately delivers the flux to the wire section to be soldered by the double-head pressure-end soldering machine, achieving uniform flux coverage and effectively avoiding the problems of cold solder joints and false solder joints caused by localized flux deficiency, thus improving the quality of wire harness soldering.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flux guiding structure for a double-headed pressure-end soldering machine, comprising a guide box (1), characterized in that: The flow guide box (1) is equipped with a flow guide and pressurization component; The flow guiding and pressurizing assembly includes a liquid inlet cover (2) set on the top of the flow guiding box (1), and a rotating rod (3) is rotatably mounted on one end of the liquid inlet cover (2), and a plurality of sealing plates (4) are mounted on the rotating rod (3). The flow guide box (1) is provided with two rotating shafts (7), and each rotating shaft (7) has a number of booster blades (8) on its outer side. One end of the flow guide box (1) is provided with a connecting plate (12), and a conveying pipe (13) is provided on the connecting plate (12).

2. The flux guiding structure of the double-head pressure-end tinning machine according to claim 1, characterized in that: The bottom of the liquid inlet hood (2) is provided with a connecting frame (5), and the top of the flow guide box (1) is provided with a frame opening (6). The connecting frame (5) is located at the top of the frame opening (6), and the connecting frame (5) is installed on the flow guide box (1) by bolts.

3. The flux guiding structure of the double-head pressure end tinning machine according to claim 1, characterized in that: The guide box (1) is provided with a protective box (9) at the end away from the connecting plate (12). The protective box (9) is provided with two meshing gears (10), and each gear (10) is located at one end of the corresponding rotating shaft (7).

4. The flux guiding structure of the double-head pressure end tinning machine according to claim 3, characterized in that: A motor (11) is bolted to the protective box (9), and the output end of the motor (11) extends to one end of one of the gears (10).

5. The flux guiding structure of the double-head pressure end tinning machine according to claim 1, characterized in that: Two support sleeves (14) are provided on the outside of the liquid inlet hood (2), and the rotating rod (3) is inserted into the support sleeve (14) and rotatably connected to the support sleeve (14).

6. The flux guiding structure of the double-head pressure end tinning machine according to claim 1, characterized in that: The multiple booster blades (8) are all spiral-shaped, and a flow guide cavity is formed between each pair of adjacent booster blades (8).

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