Triangular conductive wire self-driven single-sided tin pick-up structure

Abstract

The utility model provides a triangular conductive wire self-driven single-face tin pick-up structure, the structure comprises a pay-off wheel, a correction wheel set, a tin pick-up wheel, a traction wheel and a take-up wheel in sequence, the lower surface of the tin pick-up wheel is immersed in the surface of tin liquor, and the pay-off wheel, the correction wheel set, the traction wheel and the take-up wheel are all located above the surface of the tin liquor. The tin pick-up wheel is provided with a V-shaped groove, namely a wire groove with a V-shaped section, the section shape of the V-shaped groove is suitable for the section of a triangular conductive wire to be subjected to tin pick-up so that only the bottom face of the triangular conductive wire can make contact with tin liquid, the correction wheel set at least comprises a flat groove wheel, and the flat groove wheel is provided with a flat groove, namely a wire groove with a horizontal bottom face. According to the utility model, the triangular conductive wire entering the tin pick-up wheel is ensured not to turn over through the correction wheel set, so that the problem that the conductive wire turns over in the single-side tin pick-up process of the triangular conductive wire is solved.

Description

A self-driven single-sided tin-plating structure for triangular conductive wires Technical Field

[0001] This utility model relates to the field of photovoltaic technology, specifically a triangular conductive wire self-driven single-sided tin-plating structure. Background Technology

[0002] With the continuous growth of global energy demand and the call for environmental protection, photovoltaic power generation technology has a very broad application prospect in energy production. In the future, photovoltaic power generation will become an important part of global energy supply, providing clean, reliable, and economical electricity to residents and businesses around the world. In the traditional tinning structure, the conductive wire is unwound by a pay-off wheel, tinned at the tinning wheel, and then pulled out of the molten tin by a traction wheel before being wound up by a take-up wheel (the acid washing process is not involved in this utility model and will not be mentioned). Except for the tinning wheel, all other wheels are self-driven, i.e., driving wheels, while the tinning wheel is a non-self-driven wheel, i.e., driven wheel. Its rotation is powered by the traction of the conductive wire by the traction wheel and driven by the friction between the conductive wire and the wheel. This structure is mainly used in full immersion tinning operations. This type of tinning wheel can have a very deep wire groove, thus reducing the occurrence of wire slippage and derailment. However, for non-full immersion operations, i.e., single-sided tinning, only the bottom surface of the triangular conductive wire is tinned, and the other two sides are not allowed to be tinned. Therefore, the wire groove needs to be made very shallow. In this case, relying solely on friction to drive the tinning wheel will easily cause the conductive wire to slip off the tinning wheel, i.e., wire falling off. Moreover, since the tinning wheel is driven by friction, slippage of the tinning wheel is inevitable. In addition, the triangular conductive wire wound on the feed wheel does not have completely consistent orientation on each side during winding, causing the released triangular conductive wire to flip at an angle when it reaches the tinning wheel. Summary of the Invention

[0003] The purpose of this invention is to provide a self-driven single-sided tinning structure for triangular conductive wires, which solves the problems of conductive wire flipping and slippage between the conductive wire and the tinning wheel during the tinning process in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A self-driven single-sided soldering structure for a triangular conductive wire includes, in sequence, a feed roller, a straightening roller group, a soldering roller, a traction roller, and a take-up roller. The lower surface of the soldering roller is immersed in the molten solder surface. The feed roller, straightening roller group, traction roller, and take-up roller are all located above the molten solder surface. The soldering roller has a V-shaped groove, i.e., a groove with a V-shaped cross-section. The cross-sectional shape of the V-shaped groove is suitable for the cross-section of the triangular conductive wire to be soldered so that only the bottom surface of the triangular conductive wire contacts the molten solder. The straightening roller group includes at least one flat groove roller, which has a flat groove, i.e., a groove with a horizontal bottom surface.

[0006] Preferably, the straightening wheel set further includes a V-groove wheel and a flat-groove wheel, wherein all three wheels have wire grooves, the flat-groove wheel has a flat groove, and the V-groove wheel has a V-shaped groove. The centers of the wire grooves of the three wheels are on the same plane. The V-groove wheel is sandwiched between the two flat-groove wheels, forming a combined structure of a first flat-groove wheel-V-groove wheel-second flat-groove wheel. The triangular conductive wire enters the straightening wheel set through the first flat-groove wheel, and enters the soldering wheel after passing through the V-groove wheel and the second flat-groove wheel.

[0007] Preferably, the tinning wheel is a drive wheel.

[0008] More preferably, the driving structure of the tinning wheel includes a motor, a motor bracket, a coupling, a connecting shaft, and a reducer, wherein the output power of the motor is output to the tinning wheel through the coupling, the connecting shaft, and the reducer to drive the tinning wheel to rotate.

[0009] Furthermore, the straightening wheel set is connected to the drive structure of the tinning wheel through a connecting structure, and the grooves of the three wheels of the straightening wheel set are on the same plane as the grooves of the tinning wheel.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the solution of this utility model ensures that the triangular conductive wires entering the soldering wheel are on the same side and do not flip; at the same time, the soldering wheel is driven by a servo motor, so that the linear speed of the soldering wheel is always consistent with the linear speed of the driving wheel, thereby avoiding the phenomenon of the soldering wheel slipping and the wire falling off. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 is a schematic diagram of the flat grooved wheel used in the straightening wheel assembly;

[0013] Figure 3 is a schematic diagram of the V-groove wheel used in the straightening wheel assembly;

[0014] Figure 4 is a schematic diagram of the integrated structure of the straightening wheel assembly and the tin-coating wheel drive mechanism;

[0015] Figure 5 is an exploded view of the structure shown in Figure 4.

[0016] In the diagram: 1. Pay-off reel; 2. Straightening reel set; 21. First grooved reel; 22. V-groove reel; 23. Second grooved reel; 3. Tinning reel; 4. Traction reel; 5. Take-up reel; 6. Motor; 7. Motor bracket; 8. Coupling; 9. Connecting shaft; 10. Bracket base; 11. Right-angle reducer; 12. Connecting plate; 13. Axle; 14. Wheel body; 15. Bearing; 16. Snap ring. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] This utility model provides a tinning production equipment for conductive wires, which solves the problems of conductive wire flipping, mismatch between the speed of the tinning wheel and the traction wheel when the linear speed of the tinning wheel exceeds 50m / s, slippage between the conductive wire and the tinning wheel, and wire drop during the single-sided tinning production of triangular conductive wires.

[0021] In this invention, a set of straightening wheels ensures that the triangular conductive wires entering the soldering wheel are on the same side and do not flip; at the same time, a servo motor drives the soldering wheel so that the linear speed of the soldering wheel is always consistent with the linear speed of the driving wheel, thereby avoiding the soldering wheel slipping and wire dropping.

[0022] The present invention relates to a non-full-immersion tinning production process for triangular conductive wires. In this process, the bottom surface of the conductive wire is tinned on one side only, meaning that only the lower surface of the conductive wire contacts and is tinned.

[0023] Referring to Figure 1, which is an overall schematic diagram of the structure of this utility model, the triangular conductive wire is released from the feed roller 1, passes through the straightening roller group 2, and then enters the soldering roller 3. After the bottom surface of the triangular conductive wire is soldered, it passes through the traction roller 4 and enters the take-up roller 5. In the scheme of this utility model, the straightening roller group includes at least one flat groove roller, the bottom surface of which contacts the bottom surface of the triangular conductive wire, ensuring that the apex of the triangular conductive wire faces upward, thereby ensuring the posture of the wire entering the soldering roller. In a more preferred embodiment, the straightening roller group includes three rollers: two flat groove rollers and one V-groove roller, and the arrangement of the three rollers is shown in the figure. The triangular conductive wire is fed into the straightening roller group from the front end of the equipment for straightening. It first enters the first flat groove roller 21, then passes through the V-groove roller 22, and then enters the second flat groove roller 23. Schematic diagrams of the three straightening rollers are shown in Figures 1, 4, and 5. Before passing the straightening wheel, the orientation of the triangular conductive wire is uncertain. After passing the first flat groove wheel 21, because the cross-section of the conductive wire is triangular, when it exits the first flat groove wheel 21, its bottom surface must be tightly against the flat groove wheel, and its pointed corner must be facing the normal direction of the tangent of the first flat groove wheel (which can be understood as perpendicular to the groove outwards). At this time, it enters the V-groove wheel 22 for straightening. This wheel has a V-groove, so when it outputs the triangular conductive wire, both sides must be tightly against the groove, and the bottom edge must be facing the normal direction of the tangent of the V-groove wheel. The straightening principle of the second flat groove wheel 23 can be referred to that of the first flat groove wheel. After three straightenings, it can be ensured that the triangular conductive wire fed to the soldering wheel is on the same side and will not flip, thus ensuring that the soldering surface of the conductive wire is the same side of the triangle. The straightening wheel rotates due to the friction between the conductive wire and the wheel.

[0024] The corrected triangular conductive wire is fed into the soldering wheel, which is preferably powered by a servo motor 6. The power is transmitted to the soldering wheel 3 through the coupling 8-connecting shaft 9-right angle reducer 11, so that it runs actively and avoids slippage and wire drop. Then it is pressed into the molten solder to a suitable height, so that the lower surface of the triangular conductive wire contacts the solder surface, while the other two sides do not contact the solder surface, producing a single-sided soldered triangular conductive wire that meets the production requirements. Then it is sent out of the soldering stage through the soldering wheel to proceed to the next step of the conductive wire production process.

[0025] The drive mechanism of the soldering wheel is shown in Figures 4 and 5. The drive structure includes a motor 6, a motor bracket 7, a coupling 8, a connecting shaft 9, a bracket base 10, and a right-angle reducer 11, which is directly connected to the soldering wheel. The servo motor provides torque to the soldering wheel and controls it to maintain the same linear speed as the drive wheel of the equipment. The motor bracket connects the motor to the bracket base. The coupling connects the motor and the connecting shaft. The connecting shaft transmits the servo motor torque to the right-angle reducer. The right-angle reducer converts the vertical torque of the servo motor into horizontal torque to power the soldering wheel. The bracket base is made of heat-insulating material, connecting the motor bracket to the right-angle reducer and preventing heat from the soldering wheel from being conducted upwards, thus avoiding affecting the motor's operating accuracy.

[0026] In a preferred embodiment, the straightening wheel assembly is integrated with the drive structure via a connecting structure, ensuring the correct posture of the triangular conductive wire as it enters the soldering wheel after straightening. The connecting structure primarily consists of a connecting plate 12, which directly connects to the drive structure and adjusts the positions of the straightening and soldering wheels, ensuring the center lines of the grooves of each wheel are on the same plane. Each wheel body 14 of the straightening wheel assembly is connected to the connecting plate via an axle 13, and the wheel body 14 is fixed to the axle 13 by bearings 15 and retaining rings 16.

[0027] With the above structure, the triangular conductive wire is calibrated when it passes through the calibrating wheel group. The calibrating wheel group is responsible for calibrating the incoming triangular conductive wire to the same direction. After calibration, the conductive wire is fed into the tinning wheel. The tinning wheel is responsible for pressing the conductive wire into the appropriate position of the molten solder so that its lower surface is tinned. The servo motor controls the rotation of the tinning wheel in real time to ensure that the linear speed of the tinning wheel is consistent with that of the traction wheel to avoid slippage and wire drop during the tinning process. Finally, the tinning wheel is sent out to complete the tinning process.

[0028] In the straightening wheel structure and the motor-driven soldering wheel structure of this utility model, the soldering wheel is replaced by an active wheel, whose driving force comes from the motor drive. It does not require the conductive wire to provide friction, thus greatly reducing the slippage and wire drop issues of the soldering wheel. This utility model features a straightening wheel structure that, through three straightening operations, ensures that the triangular conductive wires fed to the soldering wheel remain on the same side and do not flip, thereby ensuring that the soldering surface of the conductive wire is the same triangular side. Compared to traditional driven soldering wheels, where the grooves of single-sided soldering wheels are very shallow, relying solely on friction to drive the wheel easily leads to the conductive wire slipping off the wheel, resulting in wire drop. Furthermore, because the soldering wheel is driven by friction, slippage is inevitable. One improvement of this utility model is replacing the soldering wheel with an active wheel, whose driving force comes from the motor drive. It does not require the conductive wire to provide friction, thus greatly reducing slippage and wire drop issues. Moreover, it can be well matched with the speed of the active wheel, ensuring the stability of the production line, reducing equipment failure rates, extending the effective length of a single production cycle, and improving product quality.

[0029] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0030] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A self-driven single-sided tin-plating structure for a triangular conductive wire, characterized in that, The assembly includes, in sequence, a feed reel, a straightening reel, a soldering reel, a traction reel, and a take-up reel. The lower surface of the soldering reel is immersed in the molten solder. The feed reel, straightening reel, traction reel, and take-up reel are all located above the molten solder. The soldering reel has a V-shaped groove, i.e., a groove with a V-shaped cross-section. The cross-sectional shape of the V-shaped groove is suitable for the cross-section of the triangular conductive wire to be soldered so that only the bottom surface of the triangular conductive wire contacts the molten solder. The straightening reel includes at least one flat groove wheel, which has a flat groove, i.e., a groove with a horizontal bottom surface.

2. The triangular conductive wire self-driven single-sided tin-plating structure as described in claim 1, characterized in that, The straightening wheel set also includes a V-groove wheel and a flat-groove wheel. All three wheels have wire grooves. The flat-groove wheel has a flat groove, and the V-groove wheel has a V-shaped groove. The centers of the wire grooves of the three wheels are on the same plane. The V-groove wheel is sandwiched between the two flat-groove wheels, forming a combination structure of a first flat-groove wheel-V-groove wheel-second flat-groove wheel. The triangular conductive wire enters the straightening wheel set through the first flat-groove wheel, and enters the soldering wheel after passing through the V-groove wheel and the second flat-groove wheel.

3. The triangular conductive wire self-driven single-sided tin-plating structure as described in claim 1, characterized in that, The tinning wheel is the driving wheel.

4. The triangular conductive wire self-driven single-sided tin-plating structure as described in claim 3, characterized in that, The drive structure of the tinning wheel includes a motor, a motor bracket, a coupling, a connecting shaft, and a reducer. The output power of the motor is output to the tinning wheel through the coupling, the connecting shaft, and the reducer, driving the tinning wheel to rotate.

5. The triangular conductive wire self-driven single-sided tin-plating structure as described in claim 4, characterized in that, The straightening wheel set is connected to the drive structure of the tinning wheel through a connecting structure, and the grooves of the three wheels of the straightening wheel set are on the same plane as the grooves of the tinning wheel.

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