A copper wire surface treatment drawing machine for photovoltaic welding strips

Abstract

This utility model belongs to the field of copper wire drawing surface treatment technology, and discloses a copper wire surface treatment drawing machine for photovoltaic welding strips. It includes a drawing machine body for drawing copper wires. The drawing machine body has a cleaning mechanism at the final drawing and forming end for removing cooling and lubricating emulsion from the surface of the copper wire. The cleaning mechanism includes an oil scraping mechanism on the drawing machine body, which includes a pair of scrapers arranged vertically to clamp and scrape oil from the copper wire. A cleaning tank for cleaning the copper wire is located at the rear end of the oil scraping mechanism, and the cleaning tank contains a warm alkaline cleaning agent. The copper wire passes through the inside of the cleaning tank. This utility model can remove the remaining trace amounts of drawing liquid and boundary layer oil film tightly adhering to the surface of the copper wire, thus achieving a better cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of copper wire drawing surface treatment technology, and in particular to a copper wire surface treatment drawing machine for photovoltaic welding strips. Background Technology

[0002] Copper wire is required for photovoltaic soldering ribbons. However, the raw copper wire purchased is too large in diameter, necessitating a wire drawing process to make the wire diameter suitable for photovoltaic soldering ribbons. The cooling and lubricating emulsions used during the wire drawing process leave behind an oil film, which severely hinders the adhesion of any subsequent treatments on the copper wire surface (especially the critical tin plating). If copper wire with oil contamination is directly tinned, the tin layer will not adhere well, blister, and peel off, resulting in soldering ribbons that cannot form reliable solder joints with the solar cells. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a copper wire surface treatment drawing machine for photovoltaic welding ribbon, which can remove the residual trace amount of drawing liquid and boundary layer oil film tightly adhering to the surface of the copper wire, thus achieving a better cleaning effect.

[0004] The technical solution adopted by this utility model is: a copper wire surface treatment drawing machine for photovoltaic welding strips, comprising a drawing machine body for drawing copper wires, wherein the drawing machine body is provided with a cleaning mechanism at the final drawing and forming take-up end for removing cooling and lubricating emulsion from the surface of the copper wires, the cleaning mechanism including an oil scraping mechanism provided on the drawing machine body, the oil scraping mechanism including a pair of scrapers arranged above and below, the scrapers clamping and scraping oil from the copper wires, and a cleaning tank for cleaning the copper wires at the rear end of the oil scraping mechanism, wherein the cleaning tank is filled with a warm alkaline cleaning agent, and the copper wires pass through the inside of the cleaning tank. An installation groove is provided between the clamping surfaces of each scraper, and a rubber layer is installed in the installation groove, with the surface of the rubber layer protruding from the surface of the scraper.

[0005] Preferably, the cleaning tank has reels at both ends that are immersed in the warm alkaline cleaning agent, and the copper wire passes between the reels.

[0006] Preferably, the outlet end of the cleaning tank is provided with a water tank containing water for removing the cleaning agent from the surface of the copper wire, and the outlet end of the water tank is provided with a hot air knife for drying the water on the surface of the copper wire.

[0007] Preferably, the clear water tank is provided in multiple locations.

[0008] Preferably, the two scrapers are fixed together by positioning bolts, and a mounting block is provided on the back side of one of the scrapers, the mounting block being fixed to the body of the wire drawing machine.

[0009] Preferably, the cleaning tank is equipped with an electric heater for heating the warm alkaline cleaning agent, and the cleaning tank is also equipped with a temperature sensor for detecting the temperature of the warm alkaline cleaning agent.

[0010] Preferably, the cleaning tank is equipped with a circulating pump for agitating the warm alkaline cleaning agent.

[0011] The beneficial effects of this invention are as follows: This invention features a cleaning mechanism at the final drawing and winding end of the wire drawing machine body to remove the cooling and lubricating emulsion from the surface of the copper wire. This cleaning mechanism mainly consists of an oil scraping mechanism and a cleaning tank. The rubber layer on the clamping plate effectively scrapes off the viscous drawing fluid without scratching the soft copper wire, mechanically removing most of the drawing fluid from its surface. This significantly reduces the burden of subsequent chemical cleaning and extends the service life of the cleaning solution. Then, a warm alkaline cleaning agent is used to decompose and remove the remaining trace amounts of drawing fluid and boundary layer oil film tightly adhering to the surface of the copper wire, thus achieving a better cleaning effect. Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the cleaning tank of this utility model; Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model; Figure 4 This is a schematic diagram of the mounting groove of this utility model; Figure 5 This is a schematic diagram of the structure of the rubber layer of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Main body of the wire drawing machine; 2. Cleaning mechanism; 3. Oil scraping mechanism; 4. Scraper; 5. Cleaning tank; 6. Mounting tank; 7. Rubber layer; 8. Wire wheel; 9. Clean water tank; 10. Hot air knife; 12. Mounting block; 13. Electric heater; 14. Temperature sensor; 15. Circulation pump; 16. Ultrasonic generator. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0016] like Figures 1-5 As shown, this embodiment provides a copper wire surface treatment drawing machine for photovoltaic welding strips, including a drawing machine body 1 for drawing copper wires. The drawing machine body 1 is provided with a cleaning mechanism 2 at the final drawing and forming end for removing the cooling and lubricating emulsion on the surface of the copper wire. The cleaning mechanism 2 includes an oil scraping mechanism 3 provided on the drawing machine body. The oil scraping mechanism 3 includes a pair of scrapers 4 arranged at the top and bottom, and the scrapers 4 clamp and scrape the copper wire. The rear end of the oil scraping mechanism 3 is provided with a cleaning tank 5 for cleaning the copper wire, and the cleaning tank 5 is filled with a warm alkaline cleaning agent. The copper wire passes through the inside of the cleaning tank 5.

[0017] An installation groove 6 is provided between the clamping surfaces of each scraper 4, and a rubber layer 7 is installed in the installation groove 6, with the surface of the rubber layer 7 protruding from the surface of the scraper 4; this avoids excessive clamping force that could cause the copper wire to break. This invention features a cleaning mechanism 2 at the final drawing and forming end of the wire drawing machine body 1, which removes the cooling and lubricating emulsion from the surface of the copper wire. The cleaning mechanism 2 mainly consists of an oil scraping mechanism 3 and a cleaning tank 5. The rubber layer 7 on the clamping plate effectively scrapes off the viscous drawing fluid without scratching the soft copper wire, mechanically removing most of the drawing fluid from its surface. This greatly reduces the burden of subsequent chemical cleaning and extends the service life of the cleaning fluid. Then, a warm alkaline cleaning agent is used to clean, decomposing and removing the remaining trace amounts of drawing fluid and boundary layer oil film tightly adhering to the surface of the copper wire, thus achieving a better cleaning effect.

[0018] The cleaning tank 5 has reels 8 at both ends that are immersed in the warm alkaline cleaning agent, and the copper wire passes between the reels 8.

[0019] The outlet end of the cleaning tank 5 is equipped with a water tank 9 containing water for removing cleaning agent from the surface of the copper wire, and the outlet end of the water tank 9 is equipped with a hot air knife 10 for drying the water on the surface of the copper wire. There are multiple water tanks 9, so as to perform multi-stage water cleaning and use the hot air knife 10 for drying, thereby ensuring a better cleaning effect.

[0020] The two scrapers 4 are fixed together by positioning bolts. One of the scrapers 4 has a mounting block 12 on its back side. The mounting block 12 is fixed to the body of the wire drawing machine 1, which facilitates installation and disassembly.

[0021] The cleaning tank 5 is equipped with an electric heater 13 for heating the warm alkaline cleaning agent, and the cleaning tank 5 is also equipped with a temperature sensor 14 for detecting the temperature of the warm alkaline cleaning agent. The agent is heated, usually at 50-70°C, and a certain concentration is maintained to accelerate the reaction and improve the cleaning efficiency.

[0022] The cleaning tank 5 is equipped with a circulating pump 15 for agitating the warm alkaline cleaning agent, which makes the warm alkaline cleaning agent have good fluidity, thereby ensuring a good cleaning effect.

[0023] The cleaning tank 5 is equipped with an ultrasonic generator 16, which assists in ultrasonic cleaning. By utilizing the "cavitation effect" to generate shock waves from the bursting of tiny bubbles, it can deeply clean the micropores and defects on the surface of the copper wire.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] Working Principle: A cleaning mechanism 2 is located at the final drawing and winding end of the wire drawing machine body 1 to remove the cooling and lubricating emulsion from the surface of the copper wire. The cleaning mechanism 2 mainly consists of an oil scraping mechanism 3 and a cleaning tank 5. The rubber layer 7 on the clamping plate effectively scrapes off the viscous drawing fluid without scratching the soft copper wire, mechanically removing most of the drawing fluid from its surface. This significantly reduces the burden of subsequent chemical cleaning and extends the service life of the cleaning solution. Then, a warm alkaline cleaning agent is used to decompose and remove the remaining trace amounts of drawing fluid and boundary layer oil film tightly adhering to the surface of the copper wire, thus achieving a good cleaning effect.

[0026] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A copper wire surface treatment drawing machine for photovoltaic welding strips, comprising a drawing machine body (1) for drawing copper wires, characterized in that: The main body (1) of the wire drawing machine is provided with a cleaning mechanism (2) at the final wire drawing and forming end for removing the cooling and lubricating emulsion on the surface of the copper wire. The cleaning mechanism (2) includes an oil scraping mechanism (3) provided on the main body of the wire drawing machine. The oil scraping mechanism (3) includes a pair of scrapers (4) arranged above and below, and the scrapers (4) clamp and scrape the copper wire. The rear end of the oil scraping mechanism (3) is provided with a cleaning tank (5) for cleaning the copper wire, and the cleaning tank (5) is filled with a warm alkaline cleaning agent. The copper wire passes through the inside of the cleaning tank (5). An installation groove (6) is provided between the clamping surfaces of each scraper (4), and a rubber layer (7) is installed in the installation groove (6), with the surface of the rubber layer (7) protruding from the surface of the scraper (4).

2. The surface treatment drawing machine for copper wire used in photovoltaic welding strips according to claim 1, characterized in that: The cleaning tank (5) has spools (8) at both ends that are immersed in the warm alkaline cleaning agent, and the copper wires pass between the spools (8).

3. The surface treatment drawing machine for copper wire used in photovoltaic welding strips according to claim 1, characterized in that: The outlet end of the cleaning tank (5) is provided with a water tank (9) containing water for removing the cleaning agent from the surface of the copper wire, and the outlet end of the water tank (9) is provided with a hot air knife (10) for drying the water on the surface of the copper wire.

4. The surface treatment drawing machine for copper wire used in photovoltaic welding strips according to claim 3, characterized in that: The clear water tank (9) is provided in multiple locations.

5. The copper wire surface treatment drawing machine for photovoltaic welding strips according to claim 1, characterized in that: The two scrapers (4) are fixed together by positioning bolts, and a mounting block (12) is provided on the back side of one of the scrapers (4), and the mounting block (12) is fixed to the body of the wire drawing machine (1).

6. The copper wire surface treatment drawing machine for photovoltaic welding strips according to claim 1, characterized in that: The cleaning tank (5) is equipped with an electric heater (13) for heating the warm alkaline cleaning agent, and the cleaning tank (5) is also equipped with a temperature sensor (14) for detecting the temperature of the warm alkaline cleaning agent.

7. The surface treatment drawing machine for copper wire used in photovoltaic welding strips according to claim 1, characterized in that: The cleaning tank (5) is equipped with a circulating pump (15) for agitating the warm alkaline cleaning agent.

8. The copper wire surface treatment drawing machine for photovoltaic welding strips according to claim 1, characterized in that: An ultrasonic generator (16) is installed inside the cleaning tank (5).

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