Automatic tin scraping mechanism for copper wire of welding strip

Abstract

The application provides a kind of automatic tin scraping mechanism of solder strip copper wire, including scraper mechanism and the tin blowing seat of being arranged in the one side of scraper mechanism, scraper mechanism includes tin scraping plate, tin scraping plate is connected on driving mechanism, driving mechanism includes rotary cam, up-down cam, front-rear cam, connecting rod and lifting platform, one end of rotary cam is connected with motor, up-down cam and front-rear cam are respectively abutted on rotary cam, up-down cam is rotatably installed on lifting platform, front-rear cam is rotatably installed on connecting rod, connecting rod is connected lifting platform by driving plate, tin scraping plate is connected driving plate.The application provides a kind of automatic tin scraping mechanism of solder strip copper wire, rotary cam is driven to reciprocate by motor and transmission shaft, up-down cam and front-rear cam can be driven to realize that pull rod and lifting platform automatically advance tin scraping plate and reciprocate tin scraping, so that high efficiency and high stability realize tin scraping, so that copper wire solder strip can keep longer service life after tin scraping treatment.

Description

Technical Field

[0001] This application relates to the field of photovoltaic soldering equipment technology, specifically to an automatic solder scraping mechanism for copper wire in soldering strips. Background Technology

[0002] Photovoltaic solder ribbon is a crucial raw material in the welding process of photovoltaic modules. The quality of the solder ribbon directly affects the current collection efficiency of the photovoltaic module, significantly impacting its power output. Commonly used photovoltaic solder ribbon is tin-plated copper ribbon, which is obtained by uniformly passing copper ribbon through a high-temperature molten tin bath. During this process, because the tin bath is maintained at a high temperature, the tin layer on the surface of the tin bath is continuously oxidized, forming a tin oxide film. If this oxide film is not treated, it will mix into the surface plating when the photovoltaic solder ribbon leaves the tin bath. After cooling, this affects the physical properties of the plating, making it brittle, reducing the adhesion between the plating and the copper ribbon surface, affecting the protective effect of the tin plating, and shortening the lifespan of the photovoltaic solder ribbon. Therefore, a tin-scraping mechanism is needed to treat the solder ribbon. However, existing tin-scraping equipment has poor stability and tin-scraping effect, resulting in a short lifespan for the solder ribbon. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The problem to be solved by this application is to provide an automatic solder scraping mechanism for solder strip copper wire, so as to overcome the defects of the prior art in which the solder scraping mechanism has poor solder scraping effect and short service life of solder strip.

[0005] (II) Technical Solution

[0006] The embodiments in this specification provide the following technical solutions:

[0007] This specification provides an automatic solder scraping mechanism for copper wire solder strips, including a solder scraper and a solder blowing seat disposed on one side of the solder scraper. The externally tinned copper wire solder strip passes through the solder blowing seat. The solder scraper is connected to a drive mechanism, which includes a rotary cam, upper and lower cams, front and rear cams, a connecting rod, and a lifting platform. One end of the rotary cam is connected to a motor. The upper and lower cams and the front and rear cams respectively abut against the rotary cam. The upper and lower cams are rotatably mounted on the lifting platform, and the front and rear cams are rotatably mounted on the connecting rod. The connecting rod is connected to the lifting platform via a drive plate, and the solder scraper is connected to the drive plate. The motor drives the rotary cam to rotate. When the rotary cam rotates, it drives the upper and lower cams and the lifting platform to rise and fall, and also drives the front and rear cams and the connecting rod to swing back and forth. The lifting platform can drive the drive plate to rise and fall synchronously. Thus, the connecting rod drives the solder scraper to approach the solder blowing seat, and then the lifting platform drives the solder scraper to rise and fall to perform solder scraping.

[0008] In some embodiments, the rotary cam includes a first rotary cam and a second rotary cam, both of which are eccentrically mounted on a drive shaft connected to a motor. The upper and lower cams abut against the first rotary cam, and the front and rear cams abut against the second rotary cam. The second rotary cam is larger than the first rotary cam, and both the first and second rotary cams have symmetrical protrusions on their sides. The upper and lower cams abut against the upper end of the first rotary cam, and the front and rear cams abut against the side end of the second rotary cam.

[0009] In some embodiments, the lifting platform is movably mounted on the mounting base via a vertical slide rail, the bottom of the lifting platform is provided with a horizontal slide rail, the drive plate is movably mounted on the horizontal slide rail, the drive plate is provided with a vertical waist-shaped groove, and the bottom of the connecting rod is rotatably mounted with a limiting shaft, which is placed in the waist-shaped groove.

[0010] In some embodiments, a connecting plate is fixed on the drive plate, the tin scraper is fixed on the connecting plate, the top of the connecting rod is hinged to the mounting base, the connecting rod is bent and the front and rear cams are installed at the bend, a first connecting hole is provided below the front and rear cams, a second connecting hole is provided at one end of the lifting platform, a positioning pin is provided on the mounting base, and both the first connecting hole and the second connecting hole are connected to the positioning pin by a tension spring.

[0011] In some embodiments, the solder blower is fixed to one side of the mounting base, the motor is mounted on the back of the mounting base, a lead frame is fixed to the bottom of the mounting base, the lead frame is provided with a lead slot, the lead slot corresponds to the wire passage hole in the solder blower, and a detection device is also provided on the side of the mounting base located on the drive mechanism.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the beneficial effects that can be achieved by the above-mentioned at least one technical solution adopted in the embodiments of this specification include at least the following: by driving the rotating cam to reciprocate through the motor and the transmission shaft, the upper and lower cams and the front and rear cams can be driven to realize the automatic advancement of the tin scraper plate to reciprocate tin scraping through the pull rod and the lifting platform, thereby achieving tin scraping with high efficiency and high stability, so that the copper wire solder strip can maintain a longer service life after tin scraping. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view from this application;

[0016] Figure 2 This is a perspective view of the drive mechanism and solder scraper in this application;

[0017] Figure 3 This is a perspective view of the rear of the drive mechanism in this application;

[0018] Figure 4 This is a side view of the drive mechanism in this application;

[0019] Figure 5 This is a perspective view of the lead frame in this application;

[0020] Figure 6 This is a perspective view of the solder ball in this application.

[0021] The component names corresponding to the various labels in the figure are: 1. Solder blower; 2. Solder scraper; 3. Upper and lower cams; 4. Front and rear cams; 5. Connecting rod; 6. Lifting platform; 7. Motor; 8. Drive plate; 9. First rotating cam; 10. Second rotating cam; 11. Vertical slide rail; 12. Mounting base; 13. Horizontal slide rail; 14. Waist-shaped groove; 15. Limiting shaft; 16. Connecting plate; 17. First connecting hole; 18. Second connecting hole; 19. Positioning pin; 20. Lead wire bracket; 21. Lead wire groove; 22. Wire passage hole; 23. Detection device; 24. Drive shaft. Detailed Implementation

[0022] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0023] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0025] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0027] Combination Figures 1-6As shown, this application provides an automatic solder scraping mechanism for copper wire soldering, including a solder scraper 2 and a solder blowing seat 1 disposed on one side of the solder scraper 2. The external copper wire passes through the solder blowing seat 1 after being processed in a tin plating bath. The solder scraper 2 is connected to a drive mechanism, which includes a rotary cam, upper and lower cams 3, front and rear cams 4, a connecting rod 5, and a lifting platform 6. One end of the rotary cam is connected to a motor 7. The upper and lower cams 3 and the front and rear cams 4 respectively abut against the rotary cam. The upper and lower cams 3 are rotatably mounted on the lifting platform 6, and the front and rear cams 4 are rotatably mounted on the connecting rod 5. The connecting rod 5 is connected to the lifting platform 6 via a drive plate 8, and the solder scraper 2 is connected to the drive plate 8. The motor 7 drives the rotary cam to rotate, and when the rotary cam rotates, it drives the upper and lower cams 3... The lifting platform 6 can be raised and lowered, and the front and rear cams 4 and connecting rod 5 can be driven to swing back and forth. This, in turn, drives the tin scraper 2 to move back and forth and up and down through the connecting rod 5 and the lifting platform 6, so that the tin scraper 2 is close to the tin blowing seat 1 to scrape solder. Specifically, the rotating cam includes a first rotating cam 9 and a second rotating cam 10. Both the first rotating cam 9 and the second rotating cam 10 are eccentrically mounted on the drive shaft 24, which is connected to the motor 7. The upper and lower cams 3 abut against the first rotating cam 9, and the front and rear cams 4 abut against the second rotating cam 10. The second rotating cam 10 is larger than the first rotating cam 9. Both the first rotating cam 9 and the second rotating cam 10 have symmetrical protrusions on both sides. The upper and lower cams 3 abut against the first rotating cam 10. At the upper end of wheel 9, the front and rear cams 4 abut against the side of the second rotating cam 10. Therefore, when the first rotating cam 9 rotates, it pushes the upper and lower cams 3 through the protrusions on both sides, causing them to move up and down. When the second rotating cam 10 rotates, it drives the front and rear cams 4 to move back and forth through the protrusions on both sides, thereby realizing the swing of the connecting rod 5. The lifting platform 6 is movably mounted on the mounting base 12 via the vertical slide rail 11. The bottom of the lifting platform 6 is provided with a horizontal slide rail 13. The drive plate 8 is movably mounted on the horizontal slide rail 13. The drive plate 8 is provided with a vertical waist-shaped groove 14. The bottom of the connecting rod 5 is rotatably mounted with a limit shaft 15, which is placed in the waist-shaped groove 14. Therefore, the lifting platform 6 can drive the whole structure to move up and down. A connecting plate 16 is fixed on the drive plate 8, and a tin scraper 2 is fixed on the connecting plate 16. The connecting rod 5 can drive the tin scraper 2 to move laterally through the drive plate 8. When the motor 7 rotates from 0 to 120 degrees, the front and rear cams 4 drive the connecting rod 5 to move forward, and the upper and lower cams 3 are in a resting state so their upper and lower positions remain unchanged. When the motor 7 rotates to 120 to 180 degrees, the upper and lower cams 3 drive the lifting platform 6 and the whole to move downward, and the front and rear cams 4 are in a resting state so their front and rear positions remain unchanged. When the motor 7 rotates to 180 to 300 degrees, the front and rear cams 4 drive the connecting rod 5 to move backward, and the upper and lower cams 3 are in a resting state. When the motor 7 rotates to 300 to 360 degrees, the front and rear cams 4 are in a resting state, and the upper and lower cams 3 drive the whole to move upward, completing one motion cycle.

[0028] In some embodiments, such as Figure 1As shown, the top of the connecting rod 5 is hinged to the mounting base 12. The connecting rod 5 is bent and the front and rear cams 4 are installed at the bend. The lower part of the front and rear cams 4 is provided with a first connecting hole 17. One end of the lifting platform 6 is provided with a second connecting hole 18. The mounting base 12 is provided with a positioning pin 19. The first connecting hole 17 and the second connecting hole 18 are both connected to the positioning pin 19 by a tension spring. The tension spring is used to ensure that each cam can keep in contact on the motion trajectory. The soldering base 1 is fixed on one side of the mounting base 12. The motor 7 is installed on the back of the mounting base 12. The bottom of the mounting base 12 is fixed with a lead wire frame 20. The lead wire frame 20 is provided with a lead wire groove 21. The lead wire groove 21 corresponds to the wire passage hole 22 in the soldering base 1. The mounting base 12 is also provided with a detection device 23 on one side of the drive mechanism, which can detect the movement of each cam.

[0029] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0030] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic solder scraping mechanism for copper wire soldering, comprising a solder scraper (2) and a solder blowing seat (1) disposed on one side of the solder scraper (2), characterized in that, The tin scraper (2) is connected to the drive mechanism, which includes a rotary cam, upper and lower cams (3), front and rear cams (4), a connecting rod (5), and a lifting platform (6). One end of the rotary cam is connected to a motor (7). The upper and lower cams (3) and the front and rear cams (4) abut against the rotary cam respectively. The upper and lower cams (3) are rotatably mounted on the lifting platform (6), and the front and rear cams (4) are rotatably mounted on the connecting rod (5). The connecting rod (5) is connected to the lifting platform (6) through a drive plate (8), and the tin scraper (2) is connected to the drive plate (8). The motor (7) is used to drive the rotary cam to rotate. When the rotary cam rotates, it drives the upper and lower cams (3) and the lifting platform (6) to rise and fall. It can also drive the front and rear cams (4) and the connecting rod (5) to swing back and forth, thereby driving the tin scraper (2) to approach the tin blower (1) for tin scraping through the connecting rod (5) and the lifting platform (6).

2. The automatic solder scraping mechanism for copper wire solder strips according to claim 1, characterized in that, The rotating cam includes a first rotating cam (9) and a second rotating cam (10). The first rotating cam (9) and the second rotating cam (10) are both eccentrically mounted on a drive shaft (24). The drive shaft (24) is connected to the motor (7). The upper and lower cams (3) abut against the first rotating cam (9), and the front and rear cams (4) abut against the second rotating cam (10).

3. The automatic solder scraping mechanism for copper wire solder strips according to claim 2, characterized in that, The second rotating cam (10) is larger than the first rotating cam (9). Both sides of the first rotating cam (9) and the second rotating cam (10) are symmetrically provided with protrusions. The upper and lower cams (3) abut against the upper end of the first rotating cam (9), and the front and rear cams (4) abut against the side end of the second rotating cam (10).

4. The automatic solder scraping mechanism for copper wire solder strips according to claim 1, characterized in that, The lifting platform (6) is movably mounted on the mounting base (12) via a vertical slide rail (11). The bottom of the lifting platform (6) is provided with a horizontal slide rail (13), and the drive plate (8) is movably mounted on the horizontal slide rail (13).

5. The automatic solder scraping mechanism for copper wire solder strips according to claim 1, characterized in that, The drive plate (8) is provided with a vertical waist-shaped groove (14), and a limiting shaft (15) is rotatably installed at the bottom of the connecting rod (5), and the limiting shaft (15) is placed in the waist-shaped groove (14).

6. The automatic solder scraping mechanism for copper wire solder strips according to claim 1, characterized in that, A connecting plate (16) is fixed on the drive board (8), and the tin scraper (2) is fixed on the connecting plate (16).

7. The automatic solder scraping mechanism for copper wire solder strips according to claim 4, characterized in that, The top of the connecting rod (5) is hinged to the mounting base (12). The connecting rod (5) is bent and the front and rear cams (4) are installed at the bend. A first connecting hole (17) is provided below the front and rear cams (4). A second connecting hole (18) is provided at one end of the lifting platform (6). A positioning pin (19) is provided on the mounting base (12). The first connecting hole (17) and the second connecting hole (18) are both connected to the positioning pin (19) by a tension spring.

8. The automatic solder scraping mechanism for copper wire solder strips according to claim 4, characterized in that, The soldering stand (1) is fixed to one side of the mounting base (12), and the motor (7) is mounted on the back of the mounting base (12).

9. The automatic solder scraping mechanism for copper wire solder strips according to claim 4, characterized in that, The bottom of the mounting base (12) is fixed with a lead frame (20), and the lead frame (20) is provided with a lead groove (21), which corresponds to the wire hole (22) in the solder blower (1).

10. The automatic solder scraping mechanism for copper wire solder strips according to claim 4, characterized in that, A detection device (23) is also provided on one side of the drive mechanism on the mounting base (12).

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