A reinforced wide cathode roller structure with high stability

Abstract

The invention discloses a reinforced large-width cathode roller structure with high stability, comprising a steel shaft, a steel cylinder, an ultra-large-width pure titanium cylinder and a sealed end plate, wherein several circles of fan-shaped support ribs are arranged in the circumferential direction of the steel shaft inside the steel cylinder, a reinforcement ring is arranged between the fan-shaped support ribs and the steel shaft, and a circumferential reinforcement rib is arranged between the fan-shaped support ribs and the steel cylinder; a large support plate is arranged inside the sealed end plates at both ends of the steel cylinder, and a first reinforcement plate, a second reinforcement plate and a positioning block are arranged between the large support plate and the sealed end plate to support the large support plate in a stepped manner; the fan-shaped support ribs and the large support plate greatly enhance the rigidity of the cathode roller, ensure the quality of the cathode roller, and have a simple structure, while also enhancing the conductivity and ensuring that the surface current of the cathode roller is uniform and stable.

Description

Technical Field

[0001] The invention relates to the field of electrolytic copper foil manufacturing, and in particular to a reinforced wide cathode roller structure with high stability. Background Art

[0002] The cathode roller is a key equipment for producing copper foil. Its structure mainly consists of a steel cylinder in the middle of a steel shaft, a titanium cylinder on the steel cylinder, end plates at both ends of the steel cylinder, and copper cylinders at both ends of the steel shaft for end plate conduction. The outer diameter of the cathode roller has been increased from φ1000 to φ3000, and the width has been increased from 1150mm to 1900mm. Since the surface state of the cathode roller directly determines the surface quality of the copper foil, it is very important to strengthen the stability of the surface state of the cathode roller.

[0003] As the cathode roller specifications develop towards larger diameters and wider widths, the size of the pure titanium cylinder made by strong spinning is also getting larger. Since the pure titanium cylinder has the characteristics of large diameter, wide width, and thin wall, as the size of the cylinder gradually increases, the overall rigidity of the cylinder gradually becomes worse. Especially for the ultra-wide pure titanium cylinder, the rigidity will be worse, and the surface state of the finished cylinder will be directly photocopied onto the surface of the copper foil; therefore, the design of the internal support structure of the ultra-wide titanium cylinder is crucial.

[0004] According to a new internal conductive device for a cathode roller disclosed in publication number CN210796661U, a copper sleeve and a conductive copper side plate are added to the cathode roller core, and copper wires are added therein to form a mesh-like uniform distribution, so that the current is evenly distributed. However, the middle copper wire is connected to the conductive copper ring for electrical conduction, and the conductive copper ring is connected to the copper sleeves at both ends for electrical conduction. The rigidity of the cathode roller cannot be guaranteed, and the structure of the device is complex. Summary of the invention

[0005] The object of the present invention is to provide a cathode roller structure with good rigidity, simple structure, good and uniform conductivity and high stability.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a reinforced large-width cathode roller structure with high stability, comprising a steel shaft, a steel cylinder, an ultra-large-width pure titanium cylinder and a sealed end plate, characterized in that a fan-shaped support rib plate is arranged between the steel shaft and the steel cylinder, the fan-shaped support rib plate is evenly arranged along the circumferential direction of the steel shaft, the fan-shaped support rib plate is conductively connected to the steel shaft and the steel cylinder, and a large support plate is also arranged on the inner side of the sealed end plate at both ends of the steel cylinder to be conductively connected to the steel shaft and the steel cylinder.

[0007] Preferably, a reinforcement ring is provided between the fan-shaped supporting rib plate and the steel shaft.

[0008] Preferably, a circle of mounting grooves is provided at the center position in the circumferential direction of the outer surface of the reinforcement ring, and the fan-shaped supporting ribs are inserted into the mounting grooves and welded.

[0009] Preferably, through holes are provided on the outer circumferential walls at both ends of the reinforcement ring, and bolts are provided in the through holes to fix the reinforcement ring to the steel shaft.

[0010] Preferably, a circumferential reinforcing rib is provided between the fan-shaped support rib, the large support plate and the inner surface of the steel cylinder, and the circumferential reinforcing rib is conductively connected to the fan-shaped support rib, the large support plate and the steel cylinder.

[0011] Preferably, at the position of the large support plate, positioning platforms are respectively provided at both ends of the steel shaft, and positioning rings are provided on the positioning platforms. The positioning rings are fixedly and conductively connected to the positioning platforms and the large support plate on the steel shaft.

[0012] Preferably, through holes are provided on the circumferential outer surfaces of both ends of the positioning ring, and bolts are provided in the through holes to fix the positioning ring to the steel shaft.

[0013] Preferably, a first reinforcing plate, a second reinforcing plate and a positioning block for support and positioning are provided on the steel shaft between the sealing end plates and the large support plates at both ends to reinforce the end surface of the large support plate in a stepped manner.

[0014] Preferably, support and reinforcement ring plates are provided around the circumference of the sealing end plates at both ends of the steel cylinder.

[0015] The present invention has the following beneficial effects: the present invention arranges fan-shaped support ribs inside the steel cylinder and arranges them evenly in the circumferential direction of the steel shaft, thereby supporting the steel cylinder and ensuring uniform current on the surface of the cathode roller; a reinforcing ring is arranged between the fan-shaped support ribs and the steel shaft, and a circumferential reinforcing rib is arranged between the fan-shaped support ribs and the steel cylinder, both of which play a role of reinforcing support and also increase the conductive area to enhance conductivity; large support plates are arranged at both ends of the steel cylinder, and the large support plates greatly enhance the rigidity of the two ends of the steel cylinder, and at the same time, they also enhance the current input to the surface of the cathode roller; a first reinforcing plate, a second reinforcing plate and a positioning block are also arranged between the large support plate and the sealing end plate to step-wise reinforce the end face of the large support plate; the present invention ensures the rigidity of the cathode roller, has a simple structure, and also ensures uniform and stable current on the surface of the cathode roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the general assembly diagram of the reinforced wide cathode roller structure with high stability of the present invention.

[0017] Figure 2 This is the left view of the general assembly diagram of the reinforced wide cathode roller structure with high stability of the present invention.

[0018] Figure 3It is a schematic diagram of the fan-shaped supporting ribs and the reinforcing ring of the present invention.

[0019] Figure 4 The present invention is enhanced by a ring cross-sectional view.

[0020] Among them: 1. Steel shaft; 2. Positioning block; 3. First reinforcement plate; 4. Second reinforcement plate; 5. Large support plate; 6. Sealing end plate; 7. Extra-wide pure titanium cylinder; 8. Steel cylinder; 9. Fan-shaped support rib plate; 10. Circumferential reinforcement rib plate; 11. Support reinforcement ring plate; 12. Reinforcement ring; 13. Positioning ring. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings. Figures 1 to 4 The present invention provides a technical solution: a reinforced large-width cathode roller structure with high stability, comprising a steel shaft 1, a steel cylinder 8, an ultra-large-width pure titanium cylinder 7, and a sealing end plate 6. The steel cylinder 8 is arranged on the steel shaft 1, and the ultra-large-width pure titanium cylinder 7 is assembled on the steel cylinder 8 by interference heat treatment. Sealing end plates 6 are arranged at both ends of the steel cylinder 8 to seal the interior of the steel cylinder 8. The sealing end plates 6 are arranged on both ends of the steel shaft 1 and are electrically connected thereto; the steel cylinder 8 adopts an integral structure, and is formed by rolling a whole piece of carbon steel plate with a thickness of 40mm at one time, which improves the quality of the steel cylinder 8, reduces the risk of leakage in splicing welding, and welding deformation, so that the overall roundness and straightness of the steel cylinder 8 are better. At the same time, because it is an ultra-wide steel cylinder 8, a 40mm thickened carbon steel plate is used to make the steel The rigidity of the cylinder 8 in the circumferential direction and the width direction is strengthened as a whole; on the inner wall of the steel shaft 1, in the width direction, 6 reinforcement positions are designed in the center, and at each reinforcement position, 8 circumferential reinforcement ribs 10 are designed in the circumferential direction; on the steel shaft 1, in the axial direction, 3 reinforcement rings 12 are designed in the center, and the reinforcement ring 12 is a thick-walled cylindrical part. A circle of installation grooves with a width of 20mm and a depth of 8mm is set at the center position of the outer surface of the reinforcement ring 12 in the circumferential direction, which is used to install the fan-shaped support rib plate 9. At the same time, 3 through holes are designed on the outer circumferential wall at both ends of the reinforcement ring 12, which are used to bolt and fix the reinforcement ring 12 and the steel shaft 1, and then weld the reinforcement ring 12 to the steel shaft 1, so that both the steel shaft 1 and the fan-shaped support rib plate 9 play a reinforcing and supporting role. Among them, the fan-shaped support rib plate 9 located between the circumferential reinforcement rib plate 10 and the reinforcement ring 12 on the steel shaft 1 is distributed in a cross shape along the circumferential direction, and 8 pieces are set; between the fan-shaped support rib plate 9 and the reinforcement ring 12, a welding structure is used. At the same time, the small end of the fan-shaped support rib plate 9 is first inserted into the mounting groove on the outer surface of the reinforcement ring 12 and then welded, so that the welding weld is reinforced twice. The steel shaft 1, reinforcement ring 12, fan-shaped support rib plate 9, circumferential reinforcement rib plate, steel cylinder 8, and ultra-wide pure titanium cylinder 7 are all conductively connected, and the evenly arranged fan-shaped support rib plates 9 are conducive to the stable and uniform output of the current to the surface of the ultra-wide pure titanium cylinder 7.

[0022] Positioning platforms are provided at both ends of the steel shaft 1. Two positioning rings 13 are provided on the positioning platforms on the inner side of the sealing end plates 6 at both ends of the steel shaft 1. A large support plate 5 is provided between the circumferential reinforcement ribs 10 at the inner wall of the steel cylinder 8 near the two ends and the positioning rings 13 on the steel shaft 1. The large support plate 5 is welded to the circumferential reinforcement ribs and the positioning rings 13, which greatly strengthens the rigidity of the two ends of the ultra-wide steel cylinder 8 and supplies power to the surface of the ultra-wide pure titanium cylinder 7, which is conducive to sufficient current on the surface of the cathode roller. The first reinforcement plate 3, the second reinforcement plate 4 and the positioning block 2 are provided on the steel shaft 1 between the sealing end plate 6 and the large support plate 5, and the end face of the large support plate 5 is stepped to strengthen. In this way, the surface support of the two ends of the steel cylinder 8 is strengthened. At the same time, the positioning block 2 is provided on the end face of the second reinforcement plate 4, which not only strengthens the first reinforcement plate 3 twice, but also plays a positioning role. The sealing end plates 6 at both ends of the steel cylinder 8 are surrounded by a circular periphery with a design thickness of 90 mm. The thickened supporting reinforcing ring plate 11 not only supports the circular periphery of the sealing end plates 6, but also reinforces the support at both ends of the ultra-wide pure titanium cylinder 7 on the basis of the support of the steel cylinder 8 for the ultra-wide pure titanium cylinder 7. At the same time, the ring plate is made of carbon steel material to reduce economic costs.

[0023] Specific implementation steps:

[0024] Insert the reinforcement ring 12 and the positioning ring 13 on the steel shaft 1 in sequence, fix them firmly with bolts, and then weld the mounting holes of the reinforcement ring 12 and the positioning ring 13 with welding wire. After the carbon steel plate is leveled, roll it into a steel cylinder 8. After the steel cylinder 8 is formed, use a sample to test the roundness and straightness of the steel cylinder 8. Perform a secondary rounding on the steel cylinder 8 to ensure that the roundness and straightness of the steel cylinder 8 meet the requirements. Then, slightly roll the circumferential reinforcement rib plate 10, mark the inner surface of the steel cylinder 8, assemble the spot-welded circumferential reinforcement rib plate 10, and perform dislocation and intermittent welding on the circumferential reinforcement rib plate 10. According to the reinforcement ring 12 fixed on the steel shaft 1, assemble the fan-shaped support rib plate 9 in sequence. First, insert the fan-shaped support rib plate 9 into the mounting groove of the reinforcement ring 12, adjust the position of the fan-shaped support rib plate 9, and then spot-weld the fan-shaped support rib plate 9. The fan-shaped support rib plate 9 is continuously welded with the circumferential reinforcement rib plate 10 and the reinforcement ring 12.

[0025] Then, according to the position of the positioning ring 13 on the steel shaft 1, insert the large support plate 5, adjust the position of the large support plate 5, make the gap between the circumference of the large support plate 5 and the inner surface of the steel cylinder 8 consistent, and then continuously weld the large support plate 5, the steel cylinder 8, and the positioning ring 13. Then, sequentially assemble and weld the second reinforcement plate 4, the first reinforcement plate 3, and the positioning block 2, and the weld is continuous welding. After welding, assemble the sealing end plate 6 according to the position of the positioning block 2, adjust the gap between the assemblies, and symmetrically and continuously weld the sealing end plate 6. Grind the weld and the periphery of the sealing end plate 6, assemble the support reinforcement ring plate 11, and the weld is required to be no higher than the outer surface of the steel cylinder 8.

[0026] After all parts are assembled and welded, the outer surface of the steel cylinder 8 is processed to make the surface of the steel cylinder 8 flat and smooth, without defects such as ridges and pits, and the surface of the steel cylinder 8 is polished. Then, the ultra-wide pure titanium cylinder 7 and the steel cylinder 8 are hot-installed, and the ultra-wide pure titanium cylinder 7 and the steel cylinder 8 are interference fit. At the same time, the support reinforcement ring plate 11 is welded around the periphery of the sealing end plate 6 to form a thickened ring plate. The steel cylinder 8 is supported and reinforced three times. In this way, the surface of the steel cylinder 8 has super rigidity and stability. In addition, the ultra-wide pure titanium cylinder 7 and the steel cylinder 8 are in the form of interference fit, which greatly improves the rigidity of the outer surface of the ultra-wide pure titanium cylinder 7, greatly improves the stability of the roller surface of the ultra-wide cathode roller, and improves the production efficiency and quality of the copper foil on the basis of reducing economic costs.

[0027] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

Claims

1. A reinforced wide cathode roller structure with high stability, comprising a steel shaft, a steel cylinder, an ultra-wide pure titanium cylinder and a sealing end plate, characterized in that: A fan-shaped support rib is arranged between the steel shaft and the steel cylinder. The fan-shaped support rib is evenly arranged along the circumferential direction of the steel shaft, and the fan-shaped support rib is conductively connected to the steel shaft and the steel cylinder; a reinforcement ring is arranged between the fan-shaped support rib and the steel shaft, and through holes are arranged on the outer circumferential walls at both ends of the reinforcement ring. Bolts are arranged in the through holes to fix the reinforcement ring to the steel shaft, and a circle of mounting grooves is arranged at the center position in the circumferential direction of the outer surface of the reinforcement ring, and the fan-shaped support rib is inserted into the mounting groove and welded; a large support plate is also arranged on the inner side of the sealing end plate at both ends of the steel cylinder, and the large support plate is conductively connected to the steel shaft and the steel cylinder; a first reinforcement plate, a second reinforcement plate and a positioning block for support and positioning are arranged on the steel shaft between the sealing end plates at both ends and the large support plate, and the end face of the large support plate is steppedly reinforced.

2. The reinforced wide cathode roller structure with high stability according to claim 1, characterized in that: A circumferential reinforcement rib plate is arranged between the fan-shaped support rib plate, the large support plate and the inner surface of the steel cylinder, and the circumferential reinforcement rib plate is electrically connected to the fan-shaped support rib plate, the large support plate and the steel cylinder.

3. The reinforced wide cathode roller structure with high stability according to claim 1, characterized in that: Positioning platforms are respectively arranged at both ends of the steel shaft, and positioning rings are arranged on the positioning platforms. The positioning rings are fixedly and conductively connected with the positioning platforms and the large supporting plate on the steel shaft.

4. The reinforced wide cathode roller structure with high stability according to claim 3, characterized in that: Through holes are arranged on the outer surfaces of the circumferences at both ends of the positioning ring, and bolts are arranged in the through holes to fix the positioning ring and the steel shaft.

5. The reinforced wide cathode roller structure with high stability according to claim 1, characterized in that: The sealing end plates at both ends of the steel cylinder are provided with supporting and reinforcing ring plates around their circumferences.

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