A device for reducing white spots on the foil side of a copper foil

Abstract

The utility model discloses a device for reducing copper foil foil face white spot relates to copper foil foil surface technical field, including the liquid separation tank, the liquid separation tank side wall fixed mounting has the shunt box, the shunt box outer wall fixed mounting has the fixed tube, the fixed tube top fixed mounting has the flow baffle mechanism, the flow baffle mechanism includes with the fixed tube top fixed connection's outer tube, the outer tube top is equipped with six even distribution's guide groove, each guide groove inner wall is slidably installed with the slide column, the slide column outer wall rotatable installation has the connecting rod, and the connecting rod side end top rotatable installation has the flow baffle, in the utility model, through the rotation connecting pipe drive flow baffle mechanism linkage, makes the slide column along the guide groove sliding adjustment flow baffle circumscribed area, realizes the control of electrolyte flow rate, ensures that flow rate is always in the uniform velocity range that meets the copper foil performance requirement, weakens electrolyte impact strength, avoids small bubble production.

Description

Technical Field

[0001] This utility model relates to the field of copper foil surface technology, specifically to a device for reducing white spots on copper foil surfaces. Background Technology

[0002] In the industrial production of electrolytic copper foil, the flow state of the electrolyte directly determines the appearance quality and physical properties of the copper foil, and is one of the core process parameters affecting the production qualification rate.

[0003] In the existing production process, the electrolyte needs to be stored in a high-level tank first, and then flow through the separatory tank before entering the foil-making machine, where it is finally electroplated into foil on the electrode surface.

[0004] However, in actual production, due to the drop of more than ten meters between the high-level tank and the separator, the electrolyte generates a strong impact force when it falls. After the impact force collides with the inner wall of the separator, it easily forms a large number of tiny bubbles. These tiny bubbles enter the foil forming machine with the electrolyte and adhere to the surface of the copper foil during the electroplating process, eventually forming small white spots that are visible to the naked eye. This results in defects in the appearance of the copper foil, and in severe cases, it can directly cause the product to be scrapped, significantly increasing production costs and restricting the improvement of production efficiency.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a device for reducing white spots on copper foil, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a device for reducing white spots on copper foil, including a liquid separator, a flow divider box fixedly installed on the side wall of the liquid separator, a fixed tube fixedly installed on the outer wall of the flow divider box, and a flow blocking mechanism fixedly installed on the top of the fixed tube.

[0008] The flow-blocking mechanism includes an outer tube fixedly connected to the top of a fixed pipe. The top of the outer tube has six evenly distributed guide grooves. A sliding column is slidably installed on the inner wall of each guide groove. A connecting rod is rotatably installed on the outer wall of the sliding column. A flow-blocking plate is rotatably installed on the top of the side end of the connecting rod. The six flow-blocking plates are arranged in a ring array and enclose a flow regulating channel. An adjusting ring is rotatably installed on the top of the flow-blocking plate. An adjusting plate is fixedly installed at the bottom of the flow-blocking plate near the center. A guide plate is sleeved on the outer wall of the adjusting plate. The adjusting plate and the guide plate are slidably engaged.

[0009] Furthermore, the inner walls of the regulating plate, the first-stage accommodating plate, the second-stage accommodating plate, and the third-stage accommodating plate are all provided with guide grooves, and the guide grooves of the regulating plate and the guide plate can be spliced ​​together to form a continuous channel.

[0010] Furthermore, thirteen inlet pipes are fixedly installed on the side of the diversion box away from the fixed pipe, and a receiving chamber is opened on the inner wall of the diversion box. The inlet pipes are fixedly installed on the inner wall of the receiving chamber. The diversion box and the diversion box are an integral welded fixed structure, and the thirteen inlet pipes are evenly distributed along the length direction of the diversion box.

[0011] Furthermore, the spring is made of corrosion-resistant stainless steel, one end of the spring is welded and fixed to the outer wall of the adjusting plate, and the other end is welded and fixed to the inner wall of the guide plate. The first-stage, second-stage, and third-stage receiving plates are all made of titanium alloy.

[0012] Furthermore, a connecting pipe is rotatably mounted on the top of the flow-blocking mechanism, and the top of the connecting pipe is used for fixed connection with the high-level tank.

[0013] Furthermore, the guide plate includes a spring fixedly connected to the top of the outer wall of the adjusting plate, a first-stage receiving plate fixedly connected to the side end of the spring, a second-stage receiving plate connected to the side end of the first-stage receiving plate via another spring, a third-stage receiving plate fixedly connected to the side end of the second-stage receiving plate via yet another spring, and the outer wall of the third-stage receiving plate fixedly connected to the inner wall of the outer tube.

[0014] The inner walls of the first-level, second-level, and third-level accommodating plates are all provided with accommodating grooves. The size of the accommodating groove of the first-level accommodating plate is adapted to the outer wall size of the second-level accommodating plate, and the size of the accommodating groove of the second-level accommodating plate is adapted to the outer wall size of the third-level accommodating plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By rotating the connecting pipe to drive the flow-blocking mechanism, the sliding column slides along the guide groove to adjust the cross-sectional area of ​​the flow-blocking plate, thereby controlling the electrolyte flow rate and ensuring that the flow rate is always within a uniform range that meets the performance requirements of the copper foil, thus reducing the impact force of the electrolyte and avoiding the generation of small bubbles.

[0017] 2. The spiral flow channel formed by the splicing of the regulating plate and the multi-stage guide plate extends the flow path, enhances the slow flow effect, solves the appearance defects of copper foil caused by air bubbles in traditional production, and greatly reduces the product scrap rate. Attached Figure Description

[0018] Figure 1 A schematic diagram of the front structure of a device for reducing white spots on copper foil;

[0019] Figure 2 A schematic diagram of the internal structure of a separatory tank in a device for reducing white spots on copper foil.

[0020] Figure 3 A schematic diagram of the exploded structure of a flow-blocking mechanism for a device used to reduce white spots on copper foil.

[0021] Figure 4 This is a schematic diagram of the extension structure of a guide plate for a device used to reduce white spots on copper foil.

[0022] In the diagram: 1. Separating tank; 11. Dividing box; 12. Receiving chamber; 13. Inlet pipe; 2. Fixed pipe; 3. Baffle mechanism; 31. Outer pipe; 32. Connecting rod; 33. Baffle plate; 34. Adjusting ring; 35. Guide groove; 36. Sliding column; 37. Flow guide plate; 371. Third-stage receiving plate; 372. Second-stage receiving plate; 373. First-stage receiving plate; 374. Receiving groove; 375. Spring; 38. Adjusting plate; 381. Flow guide groove; 4. Connecting pipe. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4This utility model provides a technical solution: a device for reducing white spots on copper foil, comprising a separator 1, a flow distribution box 11 fixedly installed on the side wall of the separator 1, a fixed tube 2 fixedly installed on the outer wall of the flow distribution box 11, and a flow-blocking mechanism 3 fixedly installed on the top of the fixed tube 2; the flow-blocking mechanism 3 includes an outer tube 31 fixedly connected to the top of the fixed tube 2, and six evenly distributed guide grooves 35 opened on the top of the outer tube 31. A sliding column 36 is slidably installed on the inner wall of each guide groove 35, a connecting rod 32 is rotatably installed on the outer wall of the sliding column 36, and a flow-blocking plate 33 is rotatably installed on the top of the side end of the connecting rod 32. The six flow-blocking plates 33 are arranged in a ring array and enclose a flow regulation channel. By adjusting the linkage structure of the adjusting ring 34, the connecting rod 32 and the sliding column 36, rotating the adjusting ring 34 can drive the sliding column 36 to slide along the guide groove 35 of the outer tube 31. The smooth sliding mechanism alters the cross-sectional area of ​​the channel enclosed by the baffle plate 33. The annular array design ensures uniform force distribution during flow regulation, preventing sudden changes in flow velocity at the bottom. An adjusting ring 34 is rotatably mounted on the top of the baffle plate 33, and an adjusting plate 38 is fixedly mounted near the center of the bottom of the baffle plate 33. A guide plate 37 is fitted onto the outer wall of the adjusting plate 38, and the adjusting plate 38 and the guide plate 37 slide together. This sliding fit structure allows the electrolyte to form a continuous spiral guiding channel, extending the flow path to reduce impact. Simultaneously, the guide grooves 381 of the six adjusting plates 38 cooperate with each other to ensure a smooth and turbulent water flow. Combined with the subsequent expansion and contraction adjustment of the multi-stage containment plates, the slow-flow effect is further enhanced. This structure avoids water flow impact and bubble generation from the flow path design, directly addressing the core cause of copper foil white spot defects, resulting in a more stable and reliable anti-bubble effect.

[0025] Please see Figures 1-4This utility model provides a technical solution: a device for reducing white spots on copper foil, comprising a flow guide plate 37 including a spring 375 fixedly connected to the top of the outer wall of an adjusting plate 38, a first-stage receiving plate 373 fixedly connected to the side of the spring 375, a second-stage receiving plate 372 connected to the side of the first-stage receiving plate 373 via another spring 375, a third-stage receiving plate 371 fixedly connected to the side of the second-stage receiving plate 372 via yet another spring 375, and the outer wall of the third-stage receiving plate 371 fixedly connected to the inner wall of an outer tube 31. The first-stage receiving plate 373, the second-stage receiving plate 372, and the third-stage receiving plate 371, connected sequentially by springs 375, form a telescopic structure. The adjusting plate 38 can drive the receiving plates of each stage to extend and retract along the receiving groove 374 by compressing the springs 375, flexibly adjusting the length of the flow guide channel and the buffer level, which can cope with the strong impact of high drops and also adapt to the precise slow flow in low flow rate scenarios. The inner walls of the primary receiving plate 373, the secondary receiving plate 372, and the tertiary receiving plate 371 are all provided with receiving grooves 374. The size of the receiving groove 374 of the primary receiving plate 373 is adapted to the outer wall size of the secondary receiving plate 372, and the size of the receiving groove 374 of the secondary receiving plate 372 is adapted to the outer wall size of the tertiary receiving plate 371. The inner walls of the adjusting plate 38, the primary receiving plate 373, the secondary receiving plate 372, and the tertiary receiving plate 371 are all provided with guide grooves 381, and the size of the receiving groove 374 of each receiving plate is precisely adapted to the outer wall size of the adjacent receiving plate. This ensures that the guide groove 381 of the adjusting plate 38 and the guide groove 381 of the guide plate 37 can always be spliced ​​to form a continuous channel during the telescoping adjustment. This design avoids the occurrence of discontinuities or turbulent areas in the flow channel during the adjustment process, so that the electrolyte always flows smoothly along the complete spiral guide groove 381, which not only extends the flow path but also ensures the consistency of the slow flow effect.

[0026] Please see Figures 1-4 This utility model provides a technical solution: a device for reducing white spots on copper foil, including a distribution box 11 with thirteen liquid inlet pipes 13 fixedly installed on the side away from the fixed pipe 2, a receiving chamber 12 is opened on the inner wall of the distribution box 1, the liquid inlet pipes 13 are fixedly installed on the inner wall of the receiving chamber 12, and the thirteen liquid inlet pipes 13 can evenly distribute the electrolyte after it has been slowed down by the flow blocking mechanism 3 to each area of ​​the foil production machine.

[0027] Please see Figures 1-4 This utility model provides a technical solution: a device for reducing white spots on copper foil, including a flow-blocking mechanism 3 with a connecting pipe 4 rotatably mounted on the top. The top of the connecting pipe 4 is used to fix the connection to the high-level tank. By rotating the connecting pipe 4, the flow rate can be adjusted by linking the adjusting ring 34, the baffle plate 33 and other components. This design does not require disassembling the equipment or additional operating tools. It can quickly adapt to tanks of different heights by simply rotating the connecting pipe 4.

[0028] Please see Figures 1-4This utility model provides a technical solution: a device for reducing white spots on copper foil, including a distribution box 11 and a liquid distribution tank 1 as an integral welded fixed structure, and thirteen liquid inlet pipes 13 are evenly distributed along the length direction of the distribution box 11, and the thirteen liquid inlet pipes 13 can combine with the flow guiding effect of the distribution box 11 to evenly distribute the electrolyte after slow flow adjustment to each liquid inlet pipe 13.

[0029] Please see Figures 1-4 This utility model provides a technical solution: a device for reducing white spots on the surface of copper foil, including a spring 375 made of corrosion-resistant stainless steel, one end of the spring 375 being welded and fixed to the outer wall of the adjusting plate 38, and the other end being welded and fixed to the inner wall of the guide plate 37. The first-stage receiving plate 373, the second-stage receiving plate 372, and the third-stage receiving plate 371 are all made of titanium alloy. Both the corrosion-resistant stainless steel and the titanium alloy have excellent acid resistance and corrosion resistance, which can effectively resist the long-term erosion of the electrolyte and prevent the components from rusting, becoming brittle, or experiencing performance degradation.

[0030] Working principle: In the initial state, supported by the elasticity of spring 375, the primary receiving plate 373, secondary receiving plate 372, and tertiary receiving plate 371 are in an extended state. The guide grooves 381 of the six adjusting plates 38 abut against each other to form a basic spiral channel. Then, the connecting pipe 4 is rotated according to the height of the high-level tank. The connecting pipe 4 drives the bottom adjusting ring 34 to rotate. The adjusting ring 34 drives the six baffle plates 33 distributed in a ring array to move synchronously. The baffle plates 33 drive the sliding column 36 to slide along the guide groove 35 of the outer pipe 31 through the connecting rod 32, changing the cross-sectional area of ​​the flow regulating channel formed by the baffle plates 33, thereby controlling the electrolyte flow rate and ensuring a uniform flow rate range. After the electrolyte in the high-level tank enters the baffle mechanism 3 through the connecting pipe 4, it first flows through the flow regulating channel enclosed by the baffle plates 33, and then enters the adjusting plates 38 and the surrounding area. The spiral guide channel formed by the splicing of the guide plates 37 on the outer wall, if the high-level tank is not high, the opening angle of the baffle plate 33 increases, causing the adjusting plate 38 to move downward. The outer wall of the adjusting plate 38 abuts against the first-level receiving plate 373 and compresses the spring 375, so that the first-level receiving plate 373 is embedded in the receiving groove 374 of the second-level receiving plate 372. The second-level receiving plate 372 is simultaneously embedded in the receiving groove 374 of the third-level receiving plate 371, forming a longer extended spiral guide channel. The water flow impact is weakened by the extended flow path and the elastic buffering effect of the spring 375, avoiding the generation of bubbles. The electrolyte after multi-stage slow flow enters the distribution box 11 through the fixed pipe 2. In the distribution box 11, it is evenly distributed to the thirteen liquid inlet pipes 13. Finally, it enters the foil making machine through the liquid inlet pipe 13 to complete the electroplating into foil, solving the white spot problem caused by drop impact.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus for reducing white spots on the surface of copper foil, comprising a separatory tank (1), characterized in that: The side wall of the liquid separator (1) is fixedly installed with a flow divider box (11), the outer wall of the flow divider box (11) is fixedly installed with a fixed tube (2), and the top of the fixed tube (2) is fixedly installed with a flow blocking mechanism (3). The flow-blocking mechanism (3) includes an outer tube (31) fixedly connected to the top of the fixed tube (2). The top of the outer tube (31) is provided with six evenly distributed guide grooves (35). Each guide groove (35) has a sliding column (36) slidably installed on its inner wall. A connecting rod (32) is rotatably installed on the outer wall of the sliding column (36). A flow-blocking plate (33) is rotatably installed on the top of the side end of the connecting rod (32). The six flow-blocking plates (33) are arranged in a ring array and enclose a flow regulation channel. An adjustment ring (34) is rotatably installed on the top of the flow-blocking plate (33). An adjustment plate (38) is fixedly installed at the bottom of the flow-blocking plate (33) near the center. A guide plate (37) is sleeved on the outer wall of the adjustment plate (38). The adjustment plate (38) and the guide plate (37) are slidably engaged.

2. The apparatus for reducing white spots on copper foil as described in claim 1, characterized in that: The guide plate (37) includes a spring (375) fixedly connected to the top of the outer wall of the adjusting plate (38). A first-stage receiving plate (373) is fixedly connected to the side end of the spring (375). A second-stage receiving plate (372) is connected to the side end of the first-stage receiving plate (373) through another spring (375). A third-stage receiving plate (371) is fixedly connected to the side end of the second-stage receiving plate (372) through yet another spring (375). The outer wall of the third-stage receiving plate (371) is fixedly connected to the inner wall of the outer tube (31).

3. The apparatus for reducing white spots on copper foil as described in claim 2, characterized in that: The inner walls of the first-level receiving plate (373), the second-level receiving plate (372), and the third-level receiving plate (371) are all provided with receiving grooves (374). The size of the receiving groove (374) of the first-level receiving plate (373) is adapted to the size of the outer wall of the second-level receiving plate (372), and the size of the receiving groove (374) of the second-level receiving plate (372) is adapted to the size of the outer wall of the third-level receiving plate (371).

4. The apparatus for reducing white spots on copper foil as described in claim 3, characterized in that: The inner walls of the regulating plate (38), the first-level accommodating plate (373), the second-level accommodating plate (372), and the third-level accommodating plate (371) are all provided with guide grooves (381). The guide grooves (381) of the regulating plate (38) and the guide grooves (381) of the guide plate (37) can be spliced ​​together to form a continuous channel.

5. The apparatus for reducing white spots on copper foil as described in claim 4, characterized in that: Thirteen inlet pipes (13) are fixedly installed on the side of the diversion box (11) away from the fixed pipe (2). The inner wall of the diversion box (1) is provided with a receiving chamber (12), and the inlet pipes (13) are fixedly installed on the inner wall of the receiving chamber (12).

6. The apparatus for reducing white spots on copper foil as described in claim 5, characterized in that: The top of the flow-blocking mechanism (3) is rotatably mounted with a connecting pipe (4), the top of which is used to be fixedly connected to the high-level tank.

7. The apparatus for reducing white spots on copper foil as described in claim 6, characterized in that: The diversion box (11) and the liquid distribution tank (1) are an integral welded fixed structure, and the thirteen liquid inlet pipes (13) are evenly distributed along the length direction of the diversion box (11).

8. The apparatus for reducing white spots on copper foil as described in claim 7, characterized in that: The spring (375) is made of corrosion-resistant stainless steel. One end of the spring (375) is welded and fixed to the outer wall of the adjusting plate (38), and the other end is welded and fixed to the inner wall of the guide plate (37). The first-stage receiving plate (373), the second-stage receiving plate (372), and the third-stage receiving plate (371) are all made of titanium alloy.

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