Etched wire slip ring conductive device

Abstract

The application provides an etching line slip ring conductive device, which comprises a shell, two guide support mechanisms, a copper material belt, a conductive slip ring mechanism, a sliding conductive mechanism and a servo motor. The two guide support mechanisms surround the shell to form a mouth structure, and the copper material belt passes through the hollow area of the mouth structure. The conductive slip ring mechanism is arranged at the top of the guide support mechanism and comprises a rotating shaft and three electric contacts which are uniformly arranged around the rotating shaft. The sliding conductive mechanism is arranged below the conductive slip ring mechanism and comprises a universal shaft coupling and a copper conductive wheel. The two ends of the universal shaft coupling are respectively connected with the two ends of the copper braided wire. One end of the universal shaft coupling is connected with the lower end of the rotating shaft, and the other end is connected with the copper conductive wheel. The side wall of the copper conductive wheel is in abutment with the upper surface of the copper material belt. The servo motor is connected with the upper end of the rotating shaft and is used for driving the rotating shaft to rotate, so that the copper conductive wheel moves synchronously with the copper material belt. The application can effectively improve the contact reliability in the dynamic conductive process of semiconductor products such as lead frame, and significantly improve the quality stability and production efficiency of the copper material belt etching.

Description

Technical Field

[0001] This application relates to the field of semiconductor automated production line devices, and more specifically, to an etched line slip ring conductive device. Background Technology

[0002] In etching production lines for semiconductor products such as lead frames, copper strips need to undergo electrochemical etching during continuous transport. Stable conductivity and current transmission of the copper strip are crucial for ensuring etching process accuracy and production efficiency. To guarantee the stability of current transmission during etching, existing etching production lines often employ grooved mercury conductive slip rings for dynamic power supply. However, the application of existing grooved mercury conductive slip rings in etching production lines for semiconductor products such as lead frames still faces numerous technical bottlenecks, making it difficult to meet the production requirements of high precision, high reliability, and long lifespan.

[0003] Existing mercury conductive slip rings utilize a concentric nested structure with liquid mercury filling the space between the upper and lower electrodes, forming a stator and rotor structure. This structure relies on the high conductivity and self-lubricating properties of liquid mercury to create a continuous conductive path at the rotating contact interface. In the etching production line, the copper strip on both sides engages with the grooves on the sidewalls of the conductive slip ring. During connection and use, uneven stress on the conductive slip ring can lead to wear and failure, or even seizing. This prevents the conductive slip ring and the contacting copper strip from achieving effective synchronous rolling, resulting in unstable power supply and ablation. Furthermore, the conductive slip ring lacks lateral auxiliary power, while the etching line transports materials in an acidic or alkaline corrosive environment. The surface of the conductive slip ring's grooves is at risk of corrosion by the etching solution, easily causing the copper strip and the conductive slip ring to seize up, severely impacting the quality stability and production efficiency of the copper strip etching process.

[0004] Therefore, there is an urgent need to develop a new type of slip ring conductive device for etched lines, which can fundamentally solve the problems of contact reliability, maintenance frequency and integration in the dynamic conductive process of etched lines in semiconductor products such as lead frames. Summary of the Invention

[0005] In view of one of the defects in the prior art, the purpose of this application is to provide an etched line slip ring conductive device.

[0006] This application provides an etched line slip ring conductive device, comprising: The shell is a U-shaped structure formed by three metal plates; Two guide support mechanisms are respectively connected to the top of the metal plates on both sides of the housing. The two guide support mechanisms and the housing form an apex structure, and the copper strip passes through the hollow area of ​​the apex structure. A conductive slip ring mechanism is located at the top of the guide support mechanism, and includes a rotating shaft and three electrical contacts evenly arranged around the rotating shaft; A sliding conductive mechanism, located below the conductive slip ring mechanism, includes a universal joint and a copper conductive wheel. The two ends of the universal joint are respectively connected to the two ends of the copper braided wire. One end of the universal joint is connected to the lower end of the rotating shaft, and the other end is connected to the copper conductive wheel. The side wall of the copper conductive wheel abuts against the upper surface of the copper strip. A servo motor is connected to the upper end of the rotating shaft to drive the rotating shaft to rotate, so that the copper conductive wheel moves synchronously with the copper strip.

[0007] Optionally, the guide support mechanism includes: Two parallel guide support rods are provided, with both ends of the guide support rods horizontally mounted on the top of the metal plates on both sides of the housing. Two platforms are mounted on the guide support rod and located on both sides of the copper strip, respectively. The platforms can slide horizontally along the guide support rod.

[0008] Optionally, the guide support mechanism further includes: A width ruler, with its two ends horizontally mounted on the top of the metal plates on both sides of the housing, and the width ruler being parallel to the guide support rod; A pointer, located on the side of the platform, is used to indicate the position scale of the platform after it has moved on the width scale.

[0009] Optionally, the conductive slip ring mechanism includes: A sealing shell is located at the top of the platform, and the rotating shaft passes through both ends of the sealing shell; A copper slip ring is disposed in the cavity of the sealing shell, and the copper slip ring is nested on the rotating shaft; Three sets of conductive copper plates are respectively connected to the inner wall of the sealing shell; one end of the electrical contact is welded to the conductive copper plate, and the other end abuts against the surface of the copper slip ring; A circulating pump, whose inlet and outlet are both connected to the sealing shell, is used to inject heat-conducting lubricating oil into the cavity of the sealing shell and drive the heat-conducting lubricating oil to flow inside the sealing shell, thereby driving the debris on the surface of the electrical contact to be discharged from the sealing shell.

[0010] Optionally, the two ends of the copper braided wire are respectively welded to the two ends of the universal joint, and the copper braided wire is covered with an insulating sleeve.

[0011] Optionally, the universal joint is made of any one of brass, pure copper, red copper, and oxygen-free copper.

[0012] Optionally, the device further includes a limiting mechanism; the limiting mechanism is located at the bottom of the platform and is used to clamp the copper strip.

[0013] Optionally, the limiting mechanism includes: A fastener, connected to the bottom of the platform; Two limiting wheels are installed on the surface of the fixing component. The two limiting wheels contact the upper and lower surfaces of the edge of the copper strip, respectively, to limit the position of the copper strip and drag the copper strip.

[0014] Optionally, the bottom of the fixing member is provided with a pressure adjusting roller screw, which is used to adjust the contact pressure between the limiting roller and the copper strip.

[0015] Optionally, the copper conductive wheel is a conductive wheel made of any one of pure copper, red copper, oxygen-free copper, and iron bronze.

[0016] The etching line slip ring conductive device provided in this application uses a copper conductive wheel to conduct electricity in contact with the surface of the copper strip. This solves the problems of poor contact reliability, unstable power supply, and ablation associated with existing mercury conductive slip rings in etching lines. It can effectively improve the contact reliability during the dynamic conductive process of etching lines in semiconductor products such as lead frames, reduce the maintenance frequency of the production line, and extend its service life. In addition, this application uses a servo motor as an auxiliary power source, combined with a conductive slip ring mechanism in which three-lobed electrical contacts symmetrically abut against the rotating shaft to achieve synchronous dynamic conductivity. A universal joint provides transmission power to the copper conductive wheel, thereby providing effective auxiliary power for the conductive conveying of the copper strip. This significantly improves problems such as copper strip jamming and greatly enhances the quality stability and production efficiency of copper strip etching.

[0017] Other technical effects resulting from the additional features will be further illustrated in the corresponding embodiments. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of an etched line slip ring conductive device according to an exemplary embodiment; Figure 2 This is a schematic cross-sectional view of an etched line slip ring conductive device according to an exemplary embodiment. Figure 3 This is a partial cross-sectional schematic diagram of a sliding conductive mechanism according to an exemplary embodiment.

[0019] In the diagram: 1 is the housing, 2 is the guide support mechanism, 3 is the conductive slip ring mechanism, 4 is the sliding conductive mechanism, 5 is the servo motor, 6 is the limit mechanism, 7 is the copper strip, 8 is the guide support rod, 9 is the platform, 10 is the width scale, 11 is the pointer, 12 is the electrical contact, 13 is the conductive copper plate, 14 is the copper slip ring, 15 is the rotating shaft, 16 is the sealing shell, 17 is the circulating pump, 18 is the universal joint, 19 is the copper braided wire, 20 is the copper conductive wheel, 21 is the limit wheel, 22 is the fixing part, and 23 is the pressure adjusting wheel screw. Detailed Implementation

[0020] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all fall within the protection scope of the present application. Parts not described in detail in the following embodiments can be implemented using existing technology.

[0021] In existing etching production lines for semiconductor products such as lead frames, mercury slip rings may suffer scratches, seizing, or ablation failure due to eccentricity. Conductive slip rings, lacking lateral auxiliary power, are prone to jamming on both sides of the copper strip and the conductive slip ring, thus affecting the quality stability and production efficiency of the copper strip etching. To address these issues, this application provides an etching line slip ring conductive device to solve these problems.

[0022] Reference Figure 1 and Figure 2 As shown, in one embodiment of this application, the etched line slip ring conductive device includes a housing 1, two guide support mechanisms 2, two conductive slip ring mechanisms 3, two sliding conductive mechanisms 4, and a servo motor 5. The housing 1 is a U-shaped structure formed by three metal plates. The two guide support mechanisms 2 are respectively connected to the tops of the metal plates on both sides of the housing 1, forming a U-shaped structure with the housing 1. A copper strip 7 passes through the hollow area of ​​the U-shaped structure. The conductive slip ring mechanism 3 is located on top of the guide support mechanism 2 and includes a rotating shaft 15 and a surrounding rotating shaft. Three electrical contacts 12 are evenly arranged on the shaft 15; the sliding conductive mechanism 4 is located below the conductive slip ring mechanism 3, including a universal joint 18 and a copper conductive wheel 20. The two ends of the universal joint 18 are respectively connected to the two ends of the copper braided wire 19. One end of the universal joint 18 is connected to the lower end of the rotating shaft 15, and the other end is connected to the copper conductive wheel 20. The side wall of the copper conductive wheel 20 abuts against the upper surface of the copper strip 7; the servo motor 5 is connected to the upper end of the rotating shaft 15 and is used to drive the rotating shaft 15 to rotate, so that the copper conductive wheel 20 moves synchronously with the copper strip 7.

[0023] Specifically, the housing 1 is arranged around the copper strip 7 but does not contact it. The guide support mechanism 2, the conductive slip ring mechanism 3, the sliding conductive mechanism 4, and the servo motor 5 are all arranged in pairs and are located on both sides of the copper strip 7. One end of each universal joint 18 is installed at the lower end of the rotating shaft 15 of the conductive slip ring mechanism 3, and the other end of the universal joint 18 is bolted to the copper conductive wheel 20. The cylindrical sidewall of the copper conductive wheel 20 can roll in contact with the upper surface of the copper strip 7. When the etching line slip ring conductive device is working, the servo motor 5 drives the rotating shaft 15 of the conductive slip ring mechanism 3 to rotate, which drives the universal joint 18 at the lower end of the rotating shaft 15 to rotate, and then drives the copper conductive wheel 20 at the end of the universal joint 18 to move synchronously with the copper strip 7. The conveying speed of the copper strip is set according to the etching process. The rotation speed of the copper conductive wheel 20 can be controlled by the servo motor 5. That is, the rotation speed of the copper conductive wheel 20 is adjusted by the servo motor 5 so that the rotation speed of the copper conductive wheel is adapted to the conveying speed of the copper strip.

[0024] When the external circuit is started, the rotating shaft 15 installed on the guide support mechanism 2 rotates with the servo motor 5, which drives the sliding conductive mechanism 4 at the tail end of the rotating shaft 15 to rotate, thereby driving the copper conductive wheel 20 at the other end of the sliding conductive mechanism 4 to roll and rub against the upper surface of the copper strip 7. Through the copper braided wire 19, the current is transmitted from the terminal of the outer casing of the conductive slip ring mechanism 3 to the copper conductive wheel 20, and flows through the copper strip 7 and the copper conductive wheel 20 on the other side of the copper strip, and finally to the conductive slip ring mechanism 3 on the other side of the copper strip 7, forming a dynamic conductive circuit for the etching line. By setting a servo motor 5 at the end of the rotating shaft 15, the conventional conductive sliding mechanism is changed from a driven mercury conductive slip ring to a servo motor-assisted active conductive slip ring mechanism in this embodiment. Here, "driven" means that the mercury conductive slip ring itself does not generate rotational force, but the copper strip transmits the power to drive the mercury conductive slip ring to rotate; while "assisted active" means that the servo motor provides part of the rotational power to adjust the rotational speed of the copper conductive wheel, ensuring that the rotational speed of the copper conductive wheel can match the transmission speed of the copper strip, thereby ensuring that the copper conductive wheel 20 and the copper strip 7 maintain good synchronous movement and avoid problems such as scratches caused by friction.

[0025] For example, the metal plate can be made of stainless steel, and the copper conductive wheel 20 can be made of any one of copper alloys such as pure copper, red copper, oxygen-free copper, and iron bronze.

[0026] The embodiments described above employ a design where the copper conductive wheel 20 rolls and contacts the surface of the copper strip 7 for conductive conduction. This ensures good contact between the conductive wheel 20 and the surface of the copper strip 7, solving problems such as poor contact reliability, unstable power supply, and ablation in existing mercury conductive slip rings used in etching lines. It also addresses the shortcomings of carbon brush slip rings, such as high contact resistance, insufficient resistance to arc erosion, easy wear and chipping leading to sparks, burns, and short service life. This design effectively improves the contact reliability during the dynamic conductive process of semiconductor product etching lines such as lead frames, reduces the maintenance frequency of the production line, and extends its service life. In addition, this application uses a servo motor 5 as an auxiliary power source, combined with a conductive slip ring mechanism 3 that symmetrically abuts the rotating shaft 15 with three-lobed electrical contacts to achieve synchronous dynamic conductivity, and drives the universal joint 18 to move with the shaft, causing the copper conductive wheel 20 to roll. The universal joint 18 provides transmission power to the copper conductive wheel 20, thereby providing effective auxiliary power for the conductive transmission between the copper strip 7 and the conductive wheel 20, which greatly improves the problem of copper strip jamming, ensures the stability and reliability of dynamic conductivity, and significantly improves the quality stability and production efficiency of copper strip etching.

[0027] In order to achieve the purpose of using a set of etched line slip ring conductive device to transmit copper strips of different widths, in some specific embodiments of this application, the guide support mechanism 2 includes two guide support rods 8 and two platforms 9, wherein: the two guide support rods 8 are arranged in parallel, and the two ends of the guide support rods 8 are horizontally installed on the top of the metal plates on both sides of the housing 1; the two platforms 9 are installed on the guide support rods 8 and are respectively located on both sides of the copper strip 7, and the platforms 9 can slide horizontally along the guide support rods 8.

[0028] Specifically, guide support rods 8 are mounted on both sides of platform 9, serving to support platform 9; two platforms 9 are mounted on double parallel guide support rods 8, forming a planar shape, and positioned above and on both sides of the copper strip 7. Platform 9 can slide horizontally along the guide support rods 8, thereby conveying copper strips of different widths. Sliding refers to the platform moving along the guide support rods according to the width of the copper strip, achieving arbitrary horizontal adjustment so that the two platforms are close to both sides of the copper strip, thus facilitating the clamping of both sides of the copper strip by the limiting wheels at the bottom of the platform.

[0029] In the above embodiments of this application, the distance between the two platforms 9 can be reduced or increased by the horizontal sliding of the platform 9 along the guide support rod 8, thereby adapting to copper strips of different widths.

[0030] In order to adjust the spacing accurately online, in some specific embodiments of this application, the guide support mechanism 2 also includes a width scale 10 and a pointer 11. The two ends of the width scale 10 are respectively horizontally installed on the top of the metal plates on both sides of the housing 1, and the width scale 10 is parallel to the guide support rod 8. The pointer 11 is located on the side of the platform 9 and is used to indicate the position scale of the platform 9 after it has moved on the width scale 10.

[0031] Specifically, the pointer 11 fixed on the platform 9 moves together with the platform 9 and indicates the position scale of the platform 9 after it moves on the width scale 10.

[0032] In the above embodiments of this application, by setting a width scale 10 and a pointer 11, the two platforms 9 can be precisely adjusted online to accurately adapt to copper strips of different widths.

[0033] In order to achieve dynamic conductivity through the rotation of the conductive slip ring mechanism 3, in some specific embodiments of this application, the conductive slip ring mechanism 3 includes a sealing shell 16, a copper slip ring 14, three sets of conductive copper plates 13, and a circulating pump 17. The sealing shell 16 is located at the top of the platform 9, and the rotating shaft 15 passes through both ends of the sealing shell 16. The copper slip ring 14 is disposed in the cavity of the sealing shell 16 and is nested on the rotating shaft 15. The three sets of conductive copper plates 13 are respectively connected to the inner wall of the sealing shell 16. One end of the electrical contact 12 is welded to the conductive copper plate 13, and the other end abuts against the surface of the copper slip ring 14. The inlet and outlet of the circulating pump 17 are both connected to the sealing shell 16. The circulating pump 17 is used to inject heat-conducting lubricating oil into the cavity of the sealing shell 16 and drive the heat-conducting lubricating oil to flow inside the sealing shell 16, causing the debris on the surface of the electrical contact 12 to be discharged from the outlet of the sealing shell 16 along with the heat-conducting lubricating oil.

[0034] Specifically, the sealing shell 16 has an internal cavity structure, and the copper slip ring 14, electrical contacts 12, and conductive copper plate 13 are all disposed inside the cavity of the sealing shell 16. One end of the electrical contact 12 is welded to the conductive copper plate 13, and the other end of the electrical contact 12 abuts against the surface of the copper slip ring 14. There are three sets of conductive copper plate 13 and electrical contacts 12, forming a three-lobed structure, which are evenly spaced around the outer circumference of the copper slip ring 14. The conductive copper plate 13 is fastened to the inner wall of the sealing shell 16. The three electrical contacts 12 are evenly spaced around the outer circumference of the rotating shaft 15 and are in surface contact with the copper slip ring 14 sleeved on the rotating shaft. The electrical contacts 12 are equivalent to the stator, and the electrical contacts are connected to the external circuit through the conductive copper plate 13. The rotating shaft 15 is the rotor. For example, the current in the external circuit flows sequentially through the conductive copper plate, electrical contact, copper slip ring, shaft, universal joint, copper braided wire, copper conductive wheel, and copper strip located on the left side of the copper strip, then through the copper conductive wheel, copper braided wire, universal joint, shaft, electrical contact, and conductive copper plate on the right side of the copper strip, before returning to another line of the external circuit, forming a dynamic conductive loop for the etched line. The inlet and outlet of the circulating pump 17 are both connected to the sealing housing 16, used to discharge lubricating oil from inside the sealing housing 16 to remove debris and dissipate heat.

[0035] For example, the copper slip ring 14 is a copper ring.

[0036] In the above embodiments of this application, the rotating shaft 15 rotates under the drive of the servo motor 5, and the copper slip ring 14 and the electrical contact 12 on the rotating shaft 15 rotate and make contact. At the same time, the sealing shell 16 of the conductive slip ring mechanism 3 is connected to the external circuit, and the current is transmitted from the electrical contact 12 to the copper slip ring 14, the rotating shaft 15, the universal joint 18, and the copper braided wire 19 to achieve its dynamic conductivity effect.

[0037] In order to improve the conductivity of the copper conductive wheel 20 and the copper strip 7, in some specific embodiments of this application, the two ends of the copper braided wire 19 are respectively welded to the two ends of the universal joint 18, and the copper braided wire 19 is covered with an insulating sleeve.

[0038] In the above embodiments of this application, the universal joint 18 moves with the rotating shaft 15, thereby driving the conductive wheel at the end of the universal joint 18 to move. Adjusting the rotation speed of the rotating shaft 15 can achieve stable surface-to-surface contact between the side wall of the conductive wheel and the surface of the copper strip 7. At the same time, the two ends of the copper braided wire 19 are respectively welded to the two end side walls of the universal joint 18, transmitting current from the rotating shaft 15 to the copper conductive wheel 20, realizing dynamic contact and conductivity between the conductive wheel and the copper strip 7, avoiding the problem of frequent jamming when the existing mercury slip ring contacts the copper strip 7 laterally.

[0039] To further improve conductivity, in some specific embodiments of this application, the universal joint 18 is made of any one of brass, pure copper, copper and oxygen-free copper.

[0040] It should be noted that the universal joint 18 can also be made of other materials, as long as the same technical effect can be achieved.

[0041] In order to clamp both sides of the copper strip 7, in some specific embodiments of this application, the above-mentioned device further includes a limiting mechanism 6; the limiting mechanism 6 is located at the bottom of the platform 9 and is used to provide a clamping effect on the copper strip 7.

[0042] In order to improve the clamping effect on the copper strip 7, in some specific embodiments of this application, the limiting mechanism 6 includes a fixing member 22 and a limiting wheel 21. The fixing member 22 is connected to the bottom of the platform 9; the two limiting wheels 21 are installed on the surface of the fixing member 22, and the two limiting wheels 21 are in contact with the upper and lower surfaces of the edge of the copper strip 7 respectively, so as to limit the position of the copper strip 7 and drag the copper strip 7.

[0043] Specifically, four limiting mechanisms 6 are installed on both sides of the bottom of each platform 9 of the guide support mechanism 2, with two on each side of the platform 9. The two limiting wheels 21 of each limiting mechanism 6 are arranged vertically to clamp the copper strip 7.

[0044] In order to achieve a stable pressurized contact between the conductive wheel and the copper strip 7, the contact pressure between the limiting wheel 21 and the copper strip 7 is adjusted. In some specific embodiments of this application, the bottom of the fixing member 22 is provided with a pressure adjusting screw 23, which is used to adjust the contact pressure between the limiting wheel 21 and the copper strip 7.

[0045] Specifically, the position of the lower limit wheel of each limit mechanism 6 is adjusted by adjusting the pressure roller screw 23, thereby adjusting the distance between the two limit wheels 21 of each limit mechanism 6, and thus adjusting the contact pressure between the limit wheel 21 and the copper strip 7. Two limit wheels are on the upper surface of the copper strip, and two limit wheels are on the lower surface of the copper strip. The contact pressure of the four limit wheels is adjusted by adjusting the pressure roller screw, which achieves the effect of clamping the copper strip.

[0046] In order to limit the movement without damaging the copper strip, in some specific embodiments of this application, the limiting wheel 21 is a rubber wheel or a plastic roller.

[0047] For example, the limit wheel 21 can be a PTFE wheel.

[0048] It should be noted that in some other embodiments, the limiting wheel 21 may also be made of other materials, as long as the same function can be achieved.

[0049] In the above embodiments of this application, the surface of the copper strip 7 is clamped by double limiting wheels, so that the two sides of the copper strip 7 are planar and have a certain tension, thereby promoting the copper conductive wheel 20 to have a stable surface-to-surface contact with the surface of the copper strip 7. Since the copper conductive wheel 20 itself has a certain gravity, the copper conductive wheel 20 and the copper strip 7 are pressurized and stable, the contact resistance is stable, and the contact reliability during the dynamic conductivity process of the etching line is further improved.

[0050] The preferred features in the above embodiments can be used individually in any embodiment, or in any combination thereof, provided they do not conflict with each other. Furthermore, parts not described in detail in the embodiments can be implemented using existing technologies.

[0051] The following examples and comparative examples will be used to further illustrate this application in order to better understand the above-mentioned technical solutions. It should be understood that the following are only some examples and are not intended to limit this application.

[0052] Using the mercury slip ring device commonly used in etching production lines as a comparison, the performance of the two devices was tested, and the results are shown in Table 1.

[0053]

[0054] For the etched-line slip ring conductive device, the contact reliability of the slip ring conductive device in dynamic contact with the copper strip and the quality stability of the copper strip etching are reflected by factors such as the etched-line yield and maintenance frequency; the service life of the copper strip etching and the production efficiency are reflected by factors such as maintenance frequency. According to Table 1, compared with the existing mercury slip ring device, the etched-line slip ring conductive device in this embodiment has the characteristics of higher contact reliability, longer service life and higher production efficiency.

[0055] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application 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 application.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0057] In the description of the embodiments in this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or devices.

[0059] The foregoing has described some specific embodiments of this application. It should be understood that this application is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this application. The above-described preferred features can be used in any combination without conflict.

Claims

1. An etched line slip ring conductive device, characterized in that, include: The shell is a U-shaped structure formed by three metal plates; Two guide support mechanisms are respectively connected to the top of the metal plates on both sides of the housing. The two guide support mechanisms and the housing form an opening structure, and the copper strip passes through the hollow area of ​​the opening structure. A conductive slip ring mechanism is located at the top of the guide support mechanism, and includes a rotating shaft and three electrical contacts evenly arranged around the rotating shaft; A sliding conductive mechanism, located below the conductive slip ring mechanism, includes a universal joint and a copper conductive wheel. The two ends of the universal joint are respectively connected to the two ends of the copper braided wire. One end of the universal joint is connected to the lower end of the rotating shaft, and the other end is connected to the copper conductive wheel. The side wall of the copper conductive wheel abuts against the upper surface of the copper strip. A servo motor is connected to the upper end of the rotating shaft to drive the rotating shaft to rotate, so that the copper conductive wheel moves synchronously with the copper strip.

2. The etched line slip ring conductive device according to claim 1, characterized in that, The guiding support mechanism includes: Two parallel guide support rods are provided, with both ends of the guide support rods horizontally mounted on the top of the metal plates on both sides of the housing. Two platforms are mounted on the guide support rod and located on both sides of the copper strip, respectively. The platforms can slide horizontally along the guide support rod.

3. The etched line slip ring conductive device according to claim 2, characterized in that, The guiding support mechanism also includes: A width ruler, with its two ends horizontally mounted on the top of the metal plates on both sides of the housing, and the width ruler being parallel to the guide support rod; A pointer, located on the side of the platform, is used to indicate the position scale of the platform after it has moved on the width scale.

4. The etched line slip ring conductive device according to claim 2, characterized in that, The conductive slip ring mechanism includes: A sealing shell is located at the top of the platform, and the rotating shaft passes through both ends of the sealing shell; A copper slip ring is disposed in the cavity of the sealing shell, and the copper slip ring is nested on the rotating shaft; Three sets of conductive copper plates are respectively connected to the inner wall of the sealing shell; one end of the electrical contact is welded to the conductive copper plate, and the other end abuts against the surface of the copper slip ring; A circulating pump, whose inlet and outlet are both connected to the sealing shell, is used to inject heat-conducting lubricating oil into the cavity of the sealing shell and drive the heat-conducting lubricating oil to flow inside the sealing shell, thereby driving the debris on the surface of the electrical contact to be discharged from the sealing shell.

5. The etched line slip ring conductive device according to claim 1, characterized in that, The two ends of the copper braided wire are respectively welded to the two ends of the universal joint, and the copper braided wire is covered with an insulating sleeve.

6. The etched line slip ring conductive device according to claim 1, characterized in that, The universal joint is made of brass or pure copper.

7. The etched line slip ring conductive device according to claim 2, characterized in that, Also includes: A limiting mechanism is located at the bottom of the platform and is used to clamp the copper strip.

8. The etched line slip ring conductive device according to claim 7, characterized in that, The limiting mechanism includes: A fastener, connected to the bottom of the platform; Two limiting wheels are installed on the surface of the fixing component. The two limiting wheels contact the upper and lower surfaces of the edge of the copper strip, respectively, to limit the position of the copper strip and drag the copper strip.

9. The etched line slip ring conductive device according to claim 8, characterized in that, The bottom of the fixing component is provided with a pressure adjusting screw, which is used to adjust the contact pressure between the limiting wheel and the copper strip.

10. The etched line slip ring conductive device according to claim 1, characterized in that, The copper conductive wheel is made of any one of pure copper, red copper, oxygen-free copper, and iron bronze.

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