A rapid processing device and method for nickel electrodeposition anode plate

CN120095567BActive Publication Date: 2026-09-25ZHEJIANG JUTAI NEW ENERGY MATERIALS CO LTD
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Patent Information

Application Number
CN202510499248.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-09-25
Estimated Expiration
2045-04-21

AI Technical Summary

Technical Problem

[0003]针对上述问题,本发明提供一种镍电积始极片快速加工装置及方法,通过送料机构、激光切割机构、增材打印机构和焊接机构解决了传统始极片制作整个过程费时、繁锁、成品率低,大部分是人工操作,劳动强度大而且设备投入也大且不能实现自动化的问题

Benefits of technology

[0024]1.本发明通过送料机构、激光切割机构、焊接机构和工作台实现了对镍电积始极片进行高效加工的功能,并且通过塑料边框形成用于支撑镍电积始极片的框架对始极片进行稳定支撑的效果。既固定了镍箔又使制作的始极片容易入槽,还不会划破隔膜袋。由于采用商品镍箔卷材作原料,省去了传统工艺种板制作、始极片电积制作、镍片剥离、吊带裁剪、极耳清洗、始极片压整等工序,节约了时间;采用塑料边框固定,可以将始极片的厚度降到0.01mm,是传统始极片的六十到一百二十分之一,也就是说一片传统始极片重量的镍箔可以制作六十到一百二十片始极片,由于镍箔、铜箔比较薄可以采用超声波自动焊接,比传统人工、激光焊接效率高,焊接面大,降低了导电电阻。

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Abstract

The present application relates to the technical field of nickel electrowinning sulfate system, and particularly relates to a kind of nickel electrowinning anode sheet rapid processing device and method, processing device includes the feeding mechanism for conveying nickel foil and copper foil;Processing device further includes laser cutting mechanism, additive printing mechanism and welding mechanism;In working condition, feeding mechanism conveys nickel foil to laser cutting mechanism, laser cutting mechanism cuts nickel foil to form square nickel sheet, and square nickel sheet is conveyed to additive printing mechanism by manipulator;Feeding mechanism conveys copper foil to welding mechanism, and copper foil is welded to the lug of square nickel sheet, and then frame for supporting nickel electrowinning anode sheet is formed by additive printing mechanism.The present application realizes the function of efficiently processing nickel electrowinning anode sheet, solves the problem that existing anode sheet production needs to be electrowon on a kind of plate, stripped, cut, embossed correction, lug shearing, hanging band riveting, cleaning and other complex work procedures, and is time-consuming and laborious, cannot be automated.
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Description

Technical Field

[0001] This invention relates to the field of nickel electrowinning technology in sulfate systems, specifically to a rapid processing apparatus and method for nickel electrowinning starter sheets. Background Technology

[0002] In the nickel electrowinning process of sulfate systems, the cathode starter sheet of the electrowinning cell must first be made. The traditional method is to first electrowinet a nickel plate of a certain thickness (generally 0.6-1.2 mm) on a cathode seed plate (such as a titanium seed plate). Then, after peeling, cutting, embossing and straightening, shearing with lifting lugs, riveting with lifting straps, and cleaning, the cathode starter sheet of the electrowinning cell is finally made. To make the starter sheet, a seed plate must first be made. The seed plate is usually made of titanium and has the same shape as the starter sheet. To prevent the nickel sheets deposited on both sides of the seed plate from growing together, a clamping strip (plastic) must be installed on the seed plate. This also prevents the seed plate from tearing the diaphragm bag when it is put into the cell. The entire process from seed plate making to starter sheet making is time-consuming, complicated, and has a low yield. Most of the operation is manual, which is labor-intensive and requires a large investment in equipment, which greatly affects the efficiency of nickel electrowinning production. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a rapid processing device and method for nickel electrodeposition starter sheets. By employing a feeding mechanism, a laser cutting mechanism, an additive printing mechanism, and a welding mechanism, it solves the problems of the traditional starter sheet manufacturing process being time-consuming, cumbersome, and having a low yield rate. The process is mostly manual, labor-intensive, and requires significant equipment investment, and cannot be automated.

[0004] To address the problems of the prior art, the present invention provides a rapid processing apparatus for nickel electrowinning starter sheets, including a feeding mechanism for conveying nickel foil and copper foil;

[0005] The welding mechanism includes an ultrasonic welding torch and a band pressing assembly;

[0006] The processing device also includes a laser cutting mechanism, a welding mechanism, and a worktable. In operation, the feeding mechanism delivers nickel foil to the laser cutting mechanism, which cuts the nickel foil into square nickel sheets. The robotic arm moves the square nickel sheets to a pre-printed plastic base frame and a copper foil head. The welding mechanism welds the copper foil head to the tabs of the square nickel sheets. The laser cutting mechanism cuts the copper foil strip, and the pressing assembly on the worktable rolls the other end of the copper foil onto the tab. The welding mechanism then welds the other end of the copper foil onto the tab, and finally, the additive printing mechanism prints the plastic face frame.

[0007] Preferably, the worktable is equipped with an additive printing mechanism, which includes a printer head and a vacuum storage tank; the printer head is set on the worktable; the printer head is equipped with an electric heater for heating the raw material; the vacuum storage tank is connected to the printer head through a pipe.

[0008] Preferably, the additive printing mechanism includes a storage tank and a vacuum feeder; the vacuum feeder is mounted on a vacuum storage tank, and the storage tank is connected to the vacuum storage tank via the vacuum feeder.

[0009] Preferably, the die head is equipped with a pusher screw for pushing materials; the die head is also equipped with a drive motor for driving the pusher screw to rotate.

[0010] Preferably, the feeding mechanism includes a rubber roller mill and a pressure roller; at least two rubber roller mills are provided, and the two rubber roller mills are used to convey nickel foil and copper foil respectively; two pressure rollers are provided, and the two pressure rollers are respectively set on two rubber roller mills, and the two pressure rollers are used to press the nickel foil roll and the copper foil roll respectively.

[0011] Preferably, the laser cutting mechanism includes a processing table and a positioning component; the processing table is provided with a cutting head for cutting nickel foil or copper foil; the positioning component includes a mounting base and a photoelectric sensor, the mounting base being disposed on the processing table and the photoelectric sensor being disposed on the mounting base.

[0012] Preferably, the welding mechanism includes an ultrasonic welding gun and a pressing assembly; the ultrasonic welding gun is set on the worktable; the pressing assembly includes a pressing bar for rolling processing, and the worktable has a pressing groove that cooperates with the pressing bar.

[0013] A rapid processing method for nickel electrodeposition starter sheets includes the following steps:

[0014] S1. The nickel foil is fed to the laser cutting mechanism via the feeding mechanism, and the laser cutting mechanism cuts the nickel foil into square nickel sheets;

[0015] S2. The additive printing mechanism processes a square plastic base frame;

[0016] S3. The copper foil is conveyed to the welding mechanism via the feeding mechanism;

[0017] S4. Transfer the cut nickel foil sheet to the top of the plastic base frame and the copper foil strip;

[0018] S5. Weld one end of the copper foil strip to the electrode tab using a welding mechanism;

[0019] S6. Cut the copper foil strip by laser cutting mechanism (4), and weld the other end of the cut copper foil strip to the nickel foil tab by pressing assembly (52) and welding mechanism (5) to form a conductive sling.

[0020] S7. Additive printing is performed around the nickel foil to form a complete border. After the conductive rod is assembled by a robotic arm, the nickel electrode assembly starter sheet is transferred to the electrodeposition tank hanger.

[0021] Preferably, the plastic frame in step S2 is made of thermoplastic material, selected from nylon, polyethylene, polyvinyl chloride, polypropylene, polystyrene, and ABS, with a melting temperature of 120-240°C and a heat distortion temperature of >100°C.

[0022] Preferably, the conductive sling in step S5 has a thickness of 0.1-0.5 mm and a width of 90-300 mm, and is fixed by ultrasonic welding; the square nickel sheet in step S1 has 3-6 positioning holes on its edge, with a hole diameter of 3-8 mm and a hole edge distance of 2-7 mm.

[0023] The advantages of this invention compared to the prior art are:

[0024] 1. This invention achieves efficient processing of nickel electrowinning starter sheets through a feeding mechanism, laser cutting mechanism, welding mechanism, and worktable. Furthermore, a plastic frame provides stable support for the starter sheets. This not only secures the nickel foil but also facilitates the insertion of the starter sheets into the slot without tearing the diaphragm bag. Using commercially available nickel foil rolls as raw material eliminates traditional processes such as seed plate preparation, starter sheet electrowinning, nickel sheet peeling, strap cutting, tab cleaning, and starter sheet pressing, saving time. The plastic frame fixation reduces the starter sheet thickness to 0.01mm, which is one-sixtieth to one-one-hundred-and-twentieth the thickness of traditional starter sheets. This means that the weight of one traditional starter sheet can produce sixty to one-hundred-and-twentieth starter sheets. Because the nickel and copper foils are relatively thin, ultrasonic automatic welding can be used, which is more efficient than traditional manual or laser welding, resulting in a larger welding surface and reduced conductivity.

[0025] 2. This invention achieves the function of printing the base frame and face frame by using a 3D printer head and a vacuum storage tank. The base frame and face frame are printed directly on the production line using molten plastic, eliminating the need for prefabricated borders and saving the steps of handling prefabricated parts, welding, and bonding, thus improving processing efficiency and reducing the need for spare parts inventory. Plastic powder or granules are stored in the vacuum storage tank, and then heated by an electric heater inside the printer head, ensuring stable operation of the frame printing process. During the 3D printing of the base frame and face frame, the raw material is supplied through the vacuum storage tank. After entering the printer head, the material is heated, preheated in the preheating section, and further heated in the melting section before the printing of the face frame and base frame.

[0026] 3. This invention achieves automatic material replenishment through a storage tank and a vacuum temporary storage tank. The vacuum feeder is inserted into the storage tank through a hose. During the printing process, the vacuum feeder transports plastic powder or granules to the storage tank for temporary replenishment, and the material is heated in stages by an electric heater inside the print head. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a rapid processing device for nickel electrowinning starting sheets according to the present invention.

[0028] Figure 2 This is a three-dimensional schematic diagram of the cooperation of nickel foil roll, feeding mechanism, laser cutting mechanism and additive printing mechanism in a rapid processing device for nickel electrodeposition starting sheet according to the present invention.

[0029] Figure 3 This is a schematic diagram of the assembly of the starter sheet and the conductive rod in a rapid processing device for nickel electrowinning starter sheets according to the present invention.

[0030] Figure 4 This is a schematic diagram of the transfer of finished nickel electrode sheets in a rapid processing apparatus for nickel electrode sheets according to the present invention.

[0031] Figure 5 This is a three-dimensional schematic diagram of the additive printing mechanism in a rapid processing device for nickel electrode stock of the present invention.

[0032] Figure 6 This is the invention Figure 5 A magnified view of a portion of point A in the middle.

[0033] Figure 7 This is the invention Figure 5 A magnified view of a portion of point B in the middle.

[0034] Figure 8 This is a three-dimensional schematic diagram of the machine head and vacuum storage tank in a rapid processing device for nickel electrowinning starting sheets according to the present invention.

[0035] Figure 9 This is a schematic diagram of the mechanism, vacuum storage tank, and storage tank in a rapid processing device for nickel electrode stock according to the present invention.

[0036] Figure 10 This is a three-dimensional schematic diagram of the feeding mechanism in a rapid processing device for nickel electrode stock of the present invention.

[0037] Figure 11 This is a three-dimensional schematic diagram of the laser cutting mechanism in a rapid processing device for nickel electrode stock of the present invention.

[0038] Figure 12 This is a three-dimensional schematic diagram of a nickel electrolytic capacitor starting sheet according to the present invention.

[0039] The diagram is labeled as follows: 1. Nickel foil roll; 2. Copper foil roll; 3. Feeding mechanism; 31. Rubber roller machine; 311. First rotary driver; 32. Pressure roller; 4. Laser cutting mechanism; 41. Processing table; 411. Cutting head; 42. Positioning assembly; 421. Mounting base; 422. Photoelectric sensor; 5. Welding mechanism; 51. Ultrasonic welding gun; 52. Pressing assembly; 521. First pressure bar; 522. Pressure groove; 523. Second pressure bar; 53. First drive assembly; 531. Mounting bracket; 5311. 532. Rack; 5321. Movable frame; 5322. First rotating shaft; 5322. Rotary gear; 533. Second rotary actuator; 54. Second drive assembly; 541. Base; 542. Mounting plate; 5421. Eccentric shaft; 543. First connecting rod; 544. Hinge seat; 545. Second connecting rod; 6. Worktable; 7. Additive printing mechanism; 71. Printer head; 72. Vacuum storage tank; 73. Vacuum feeder; 74. Drive motor; 8. Nickel foil; 81. Electrode; 82. Conductive sling; 83. Conductive rod. Detailed Implementation

[0040] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0041] Reference Figures 1-4 A rapid processing apparatus for nickel electrowinning starter sheets includes a feeding mechanism 3 for conveying nickel foil and copper foil;

[0042] The processing device also includes a laser cutting mechanism 4, a welding mechanism 5, and a worktable 6. The welding mechanism 5 includes an ultrasonic welding gun 51 and a pressing assembly 52. ​​In operation, the feeding mechanism 3 transports nickel foil to the laser cutting mechanism 4, which cuts the nickel foil into square nickel sheets. The feeding mechanism 3 transports copper foil to the welding mechanism 5. Then, the robotic arm moves the square nickel sheet to the pre-printed plastic base frame and the copper foil head. The welding mechanism 5 welds the copper foil head to the tab 81 of the square nickel sheet. The laser cutting mechanism 4 cuts the copper foil strip. The pressing assembly 52 on the worktable 6 rolls the other end of the copper foil onto the tab 81. The welding mechanism 5 then welds the other end of the copper foil onto the tab 81. Finally, the additive printing mechanism 7 prints the plastic face frame.

[0043] As a first embodiment of the present invention, the present invention achieves efficient processing of nickel electrolytic capacitor blanks through a feeding mechanism 3, a laser cutting mechanism 4, a welding mechanism 5, and a worktable 6. Furthermore, it uses 3D printing to form a frame for supporting the nickel electrolytic capacitor blanks, providing stable support. This not only fixes the nickel foil but also makes it easy to insert the manufactured blanks into the slot without tearing the diaphragm bag. The nickel foil used in this embodiment is a finished nickel foil roll 1 produced by rolling, with a purity of 99.95%, a thickness of 0.1 mm, and a width of 1000 mm. The blanks used in this embodiment have an external dimension of 880 + 40 mm, where 880 mm is the length of the nickel electrolytic capacitor plate in the next process; 40 mm is the width of the two side frames; and the blanks have an external dimension of 900 + 40 mm, where 900 mm is the width of the nickel electrolytic capacitor plate in the next process, and 40 mm is the width of the two side frames. The square nickel foil sheet 8 has external dimensions of (880+20)mm × (900+20)mm. Two tabs 81 are provided on one side of the 900mm edge, and the dimensions of tab 81 are 300mm × 100mm. Six 5mm diameter circular holes are laser-drilled at designated positions on each side of the cut square nickel foil, with the outer perimeter of the holes 3mm from the edge of the square nickel foil. The robotic arm is a handling robot equipped with positioning and suction cups. In this embodiment, after the starting electrode sheet is used for the production of electrolytic nickel plates, the nickel-free parts of the frame and copper straps are separated from the finished nickel plates by laser cutting. The copper straps are recycled as scrap copper. The frame, containing a small amount of nickel foil and copper, is dissolved by heating with dilute sulfuric acid and hydrogen peroxide at 50-65℃, and the metal is returned to the nickel electrolyte production line for recycling. The waste plastic can be reused after cleaning, drying, and granulation.

[0044] Traditionally, starter sheets are produced by electrodeposition using a seed plate as the cathode in an electrodeposition cell. Because nickel can be deposited on all four sides of the seed plate during electrodeposition, plastic clamping strips must be installed to prevent the two sides from growing together. It takes approximately 48-56 hours to reach a nickel thickness of 0.6-1.2 mm. The seed plate is then removed, the clamping strips are removed, and the nickel sheets on both sides of the seed plate are peeled off using a peeling machine. After peeling, the sheet undergoes cutting, straightening, riveting and welding of conductive straps, and rinsing. The peeling process is the most critical and affects the yield. This invention aims to improve the efficiency of starter sheet production by directly using commercial nickel foil rolls as raw materials, eliminating the seed plate fabrication, starter sheet electrodeposition, and peeling processes. Commercial nickel foil is used because it allows for rapid, mass production of nickel foil with a thickness of 0.01 mm or more, a certain width, and arbitrary length through physical rolling or roller electrodeposition. Furthermore, its surface is regular and smooth, and after cold rolling, it possesses high hardness and strength, laying the foundation for automated starter sheet production. However, thick nickel foil cannot be used, otherwise the amount of nickel used will increase, which is not economical. If thin nickel foil is used, its strength and rigidity are insufficient, making it difficult to make an ideal flat starter sheet, and also making it difficult to insert the starter sheet into the slot. Therefore, this invention adopts a process of adding a frame to the nickel foil, which not only fixes the nickel foil but also makes it easy to insert the manufactured starter sheet into the slot, without tearing the diaphragm bag. This is similar to adding a frame to a soft painting. The worktable 6 has a bottom frame slot. In this embodiment, the frame is welded from a bottom frame and a top frame. Both the bottom frame and the top frame are pre-made injection molded parts, and the material's heat distortion temperature is >100℃.

[0045] In operation, nickel foil is fed by the feeding mechanism 3, and then the robot moves the base frame to the base frame slot on the worktable 6 for later use. Next, copper foil is fed by the feeding mechanism 3. The nickel foil first reaches the laser cutting mechanism 4 for cutting, which forms square nickel sheets. The robot then transports the square nickel sheets to the base frame, where the tabs 81 of the nickel foil sheet 8 press against the copper foil strip. The welding mechanism 5 welds the two together. The laser cutting mechanism 4 cuts the copper foil strip, and the worktable 6 pressing assembly 52 rolls the other end of the copper foil and presses it against the tab 81. The welding mechanism 5 then welds the other end of the copper foil to the tab 81. The robot moves the face frame to the base frame, and then welds the face frame and base frame together. Finally, the robot inserts a conductive rod 83 into the starter sheet and lifts the starter sheet into the electrodeposition tank.

[0046] Reference Figure 1 , Figure 5 , Figure 8 and Figure 9 The worktable 6 is equipped with an additive printing mechanism 7, which includes a printer head 71 and a vacuum storage tank 72. The printer head 71 is set on the worktable 6. The printer head 71 is equipped with an electric heater for heating the raw materials. The vacuum storage tank 72 is connected to the printer head 71 through a pipe.

[0047] As a second embodiment of the present invention, the present invention realizes the function of printing and generating the base frame and face frame through the printer head 71 and the vacuum storage tank 72. The base frame and face frame are directly printed on the production line using molten plastic, eliminating the need for prefabrication of the base frame and face frame, saving the steps of handling prefabricated parts, welding and bonding, improving processing efficiency and reducing the need for spare parts inventory. The plastic powder or plastic granules are stored in the vacuum storage tank 72, and then the raw material is heated by the electric heater in the printer head 71 to ensure the stable operation of the frame printing. The electric heater forms a preheating section and a melting section in the printer head 71. The heating temperature of the preheating section is 20-50°C lower than the softening temperature of the selected thermoplastic plastic, and the heating temperature of the melting section is 20-50°C higher than the softening temperature of the selected thermoplastic plastic, preferably 30°C. The base frame and face frame are preferably made of nylon, and the melting temperature range is 180-260°C.

[0048] In operation, nickel foil is fed by the feeding mechanism 3, and first reaches the laser cutting mechanism 4 for cutting. The laser cutting mechanism 4 cuts the nickel foil into square nickel sheets. At this time, a square base frame is printed by the additive printing mechanism 7 for later use, and the feeding mechanism 3 feeds copper foil to the welding mechanism 5 for later use. Then, the robot arm feeds the square nickel sheet to the square base frame and copper foil strip at the additive printing mechanism 7, and welds the copper foil strip to the square nickel sheet tab 81. The copper foil strip is cut by the laser cutting mechanism 4, and the other end of the copper foil is rolled up and pressed onto the tab 81 by the pressing assembly 52 of the worktable 6. Then, the other end of the copper foil is welded to the tab 81 by the welding mechanism 5 to form a conductive suspender 82. Finally, the additive printing mechanism 7 prints thermoplastic plastic around the nickel sheet to form a square plastic frame, thus producing the nickel electrode assembly starter sheet. When performing 3D printing of the bottom frame and the frame, the raw material is supplied through the vacuum storage tank 72. After the raw material enters the die head 71, it is heated. The raw material is preheated in the preheating section and further heated in the melting section before the printing of the frame and the bottom frame is carried out.

[0049] Reference Figure 1 , Figure 8 and Figure 9 The additive printing mechanism 7 includes a storage tank and a vacuum feeder 73; the vacuum feeder 73 is installed on the vacuum storage tank 72, and the storage tank is connected to the vacuum storage tank 72 through the vacuum feeder 73.

[0050] This invention achieves automatic material replenishment through a storage tank and a vacuum storage tank 72. The vacuum feeder 73 is inserted into the storage tank through a hose. During the printing process, the vacuum feeder 73 transports plastic powder or granules to the storage tank for temporary replenishment, and performs segmented heating through an electric heater inside the print head 71.

[0051] Reference Figure 1 , Figure 8 and Figure 9 The die head 71 is equipped with a pusher screw for pushing materials; the die head 71 is equipped with a drive motor 74 for driving the pusher screw to rotate.

[0052] This invention achieves the function of pushing materials through a pusher screw and a drive motor 74. After the plastic powder or granules are heated and melted by the electric heater inside the die head 71, the pusher screw is driven to rotate by the drive motor 74. The pusher screw pushes the material towards the end of the die head 71, thereby extruding the molten material for the printing of the border.

[0053] The starting electrode sheet has an external dimension of X+2n (X is the length of the nickel electroplating plate in the next process, X is 800-960mm; n is the width of the frame, n is 20-30mm) and a width of Y+2n (Y is the width of the nickel electroplating plate in the next process, Y is 800-960mm). The square nickel foil sheet 8 has an external dimension of (X+n)mm×(Y+n)mm, with two tabs 81 on one side of the Y side. The tabs 81 have a length c of 100-300mm and a width d of 50-100mm. 3-6 circular holes with a diameter of 3-8mm are laser-drilled at designated positions on each side of the cut square nickel foil. These holes are for fixing and can also be square or other shapes. The outer perimeter of the holes is 2-7mm from the edge of the square nickel foil. The plastic frame is made of thermoplastic nylon, polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), or acrylonitrile-butadiene-styrene (ABS), preferably nylon. The selected plastic has a melting temperature range of 120–260°C and a heat distortion temperature greater than 100°C.

[0054] Reference Figure 1 , Figure 2 and Figure 10 The feeding mechanism 3 includes a rubber roller machine 31 and a pressure roller 32; at least two rubber roller machines 31 are provided, and the two rubber roller machines 31 are used to convey nickel foil and copper foil respectively; two pressure rollers 32 are provided, and the two pressure rollers 32 are respectively set on the two rubber roller machines 31, and the two pressure rollers 32 are used to press the nickel foil roll 1 and the copper foil roll 2 respectively.

[0055] This invention achieves the function of conveying nickel foil and copper foil through a rubber roller mill 31 and a pressure roller 32. The rubber roller mill 31 is equipped with two conveying rollers and a first rotary drive 311 for driving the conveying rollers to rotate. A gap exists between the two conveying rollers for nickel foil or copper foil to pass through. The pressure roller 32 is hinged to the frame of the rubber roller mill 31 via a first connecting rod and a second connecting rod. An air spring is provided at the hinge point between the rubber roller mill 31 and the second connecting rod. The piston rod of the air spring is hinged to the first connecting rod. The elastic force provided by the nitrogen spring causes the two pressure rollers 32 to abut against the nickel foil roll 1 and the copper foil roll 2, respectively.

[0056] Reference Figure 1 , Figure 5 , Figure 9 and Figure 11 The laser cutting mechanism 4 includes a processing table 41 and a positioning component 42; the processing table 41 is provided with a cutting head 411 for cutting nickel foil or copper foil; the positioning component 42 includes a mounting base 421 and a photoelectric sensor 422, the mounting base 421 is disposed on the processing table 41, and the photoelectric sensor 422 is disposed on the mounting base 421.

[0057] This invention achieves precise cutting of copper or nickel foil using a processing table 41 and a positioning component 42. When the rubber roller conveyor 31 transports the nickel foil onto the processing table 41, the photoelectric sensor 422 detects the position of the nickel foil and stops the conveying of the rubber roller conveyor 31. Then, the cutting head 411 cuts the nickel foil. The position of the nickel foil is determined by the detection function provided by the photoelectric sensor 422, thereby completing the automatic cutting of the nickel foil.

[0058] Reference Figure 1 , Figures 4-7 The pressing assembly 52 includes a first pressing bar 521, a pressing groove 522, and a second pressing bar 523; the worktable 6 is provided with a first driving assembly 53 and a second driving assembly 54 for driving the first pressing bar 521 and the second pressing bar 523 to move respectively; the ultrasonic welding gun 51 is disposed on the worktable 6.

[0059] This invention achieves the welding and rolling processes of the conductive sling 82 through the pressing assembly 52, the first driving assembly 53, and the second driving assembly 54. The diameter of the first pressing bar 521 is the same as the diameter of the pressing groove 522. The first driving assembly 53 includes a mounting frame 531, a movable frame 532, and a rotary driver. The mounting frame 531 is set on the worktable 6 and is equipped with a rack 5311. The movable frame 532 is vertically mounted on the mounting frame 531. The first pressing bar 521 is connected to the movable frame 532 through the frame. A first rotating shaft 5321 is rotatably mounted on the movable frame 5322. A rotating gear 5322 is sleeved on the first rotating shaft 5321 and meshes with the rack 5311. The rotary driver is mounted on the mounting frame 531 and is used to drive the first rotating shaft 5321 to rotate. The second drive assembly 54 includes a base 541, a mounting plate 542, a first connecting rod 543, a hinge seat 544, and a second connecting rod 545. The base 541 is disposed below the worktable 6, and the mounting plate 542 is rotatably mounted on the base 541. The base 541 has a built-in servo motor for driving the rotation of the mounting plate 542. An eccentric shaft 5421 is provided on the mounting plate 542. The two ends of the first connecting rod 543 are hinged to the eccentric shaft 5421 and the second pressure bar 523, respectively. The hinge seat 544 is disposed on the worktable 6, and the two ends of the second connecting rod 545 are hinged to the hinge seat 544 and the second pressure bar 523, respectively.

[0060] During processing, the copper foil is conveyed to the designated position by the feeding mechanism 3, and then one end of the copper foil is welded to the tab 81 of the nickel foil sheet 8 by the ultrasonic welding gun 51. Then, the copper foil is cut by the laser cutting mechanism 4. Then, the first rotating shaft 5321 is driven to rotate by the rotary driver. The first rotating shaft 5321 drives the rotating gear 5322 to rotate. The rotating gear 5322 is meshed with the rack 5311. Under the rotation of the rotating gear 5322, the movable frame 532 is controlled to move down. The movable frame 532 drives the first pressure bar 521 to move down. The cut copper foil is pressed into the pressure groove 522 by the first pressure bar 521. Under the pressure, the end of the copper foil away from the nickel foil sheet 8 is lifted up. Next, the mounting plate 542 is driven to rotate by the servo motor built into the base 541. The mounting plate 542 pushes the second pressure bar 523 to rotate via the first connecting rod 543. During rotation, the second pressure bar 523 rotates around the pressure groove 522 guided by the second connecting rod 545, thereby rolling the cut copper foil onto the tab 81 of the nickel foil sheet 8. Then, the other end of the copper foil is welded to the tab 81 of the nickel foil sheet 8 using an ultrasonic welding gun 51, completing the processing of the conductive sling 82.

[0061] Conductive sling 82, nickel foil sheet 8 pole lug 81 (reference) Figure 12 .

[0062] A rapid processing method for nickel electrodeposition starter sheets includes the following steps:

[0063] S1. The nickel foil is conveyed to the laser cutting mechanism by the feeding mechanism 3, and the laser cutting mechanism 4 cuts the nickel foil into square nickel sheets;

[0064] S2, the additive printing mechanism 7 processes a square plastic base frame;

[0065] S3. The copper foil is conveyed to the welding mechanism via the feeding mechanism 3;

[0066] S4. Transfer the cut nickel foil sheet 8 to the plastic base frame and the copper foil strip above it;

[0067] S5. Weld one end of the copper foil strip to the electrode tab 81 using a welding mechanism;

[0068] S6. Cut the copper foil strip using the laser cutting mechanism 4, and weld the other end of the cut copper foil strip to the tab 81 of the nickel foil sheet 8 using the pressing assembly 52 and the welding mechanism 5 to form a conductive suspender 82.

[0069] S7. Additive printing is performed around the nickel foil 8 to form a complete border. After the conductive rod 83 is assembled by a robotic arm, the nickel electrodeposition starter sheet is transferred to the electrodeposition tank hanger.

[0070] Reference Figure 9 and Figure 10The plastic base frame in step S2 is made of thermoplastic material, selected from one of nylon, polyethylene, polyvinyl chloride, polypropylene, polystyrene, and ABS, with a melting temperature of 120-260℃ and a heat distortion temperature of >100℃.

[0071] Reference Figure 1 and Figure 2 The conductive sling 82 in step S5 has a thickness of 0.1-0.5 mm and a width of 90-300 mm, and is fixed by ultrasonic welding; the square nickel sheet in step S1 has 3-6 positioning holes on its edge, with a hole diameter of 3-8 mm and a hole edge distance of 2-7 mm.

[0072] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A rapid processing apparatus for nickel electrodeposition starter sheets, comprising a feeding mechanism (3) for conveying nickel foil and copper foil; Its features are, The processing device also includes a laser cutting mechanism (4), a welding mechanism (5), a worktable (6), and an additive printing mechanism (7). The welding mechanism (5) includes an ultrasonic welding gun (51) and a pressure band assembly (52); In operation, the feeding mechanism (3) delivers the nickel foil to the laser cutting mechanism (4), which cuts the nickel foil into a square nickel sheet. The feeding mechanism (3) delivers the copper foil to the welding mechanism (5), which then moves the square nickel sheet to the pre-printed plastic base frame and the copper foil head via a robotic arm. The welding mechanism (5) welds the copper foil head to the tab (81) of the square nickel sheet. The laser cutting mechanism (4) cuts the copper foil strip. The other end of the copper foil is rolled up and pressed onto the tab (81) by the pressing assembly (52) on the worktable (6). The other end of the copper foil is then welded onto the tab (81) by the welding mechanism (5). The plastic face frame is then printed by the additive printing mechanism (7). The worktable (6) is equipped with an additive printing mechanism (7), which includes a head (71) and a vacuum storage tank (72). The machine head (71) is set on the workbench (6); The head (71) is equipped with an electric heater for heating the raw materials; The vacuum storage tank (72) is connected to the head (71) via a pipe; the additive printing mechanism (7) includes a storage tank and a vacuum feeder (73); The vacuum conveyor (73) is installed on the vacuum storage tank (72), and the storage tank is connected to the vacuum storage tank (72) through the vacuum conveyor (73); the pressing assembly (52) includes a first pressing bar (521), a pressing groove (522), and a second pressing bar (523); The workbench (6) is provided with a first drive assembly (53) and a second drive assembly (54) for driving the first pressure bar (521) and the second pressure bar (523) to move respectively; The ultrasonic welding gun (51) is set on the workbench (6).

2. The rapid processing apparatus for nickel electrodeposition starter sheets according to claim 1, characterized in that, The head (71) is equipped with a pusher screw for pushing materials; The head (71) is equipped with a drive motor (74) for driving the pusher screw to rotate.

3. The rapid processing apparatus for nickel electrodeposition starter sheets according to claim 1, characterized in that, The feeding mechanism (3) includes a rubber roller mill (31) and a pressure roller (32); At least two rubber roller conveyors (31) are provided, and the two rubber roller conveyors (31) are used to convey nickel foil and copper foil respectively; Two pressure rollers (32) are provided, and the two pressure rollers (32) are respectively set on two rubber roller machines (31). The two pressure rollers (32) are used to press the nickel foil roll (1) and the copper foil roll (2).

4. The rapid processing apparatus for nickel electrodeposition starter sheets according to claim 1, characterized in that, The laser cutting mechanism (4) includes a processing table (41) and a positioning component (42). The processing table (41) is equipped with a cutting head (411) for cutting nickel foil or copper foil. The positioning component (42) includes a mounting base (421) and a photoelectric sensor (422). The mounting base (421) is mounted on the processing table (41), and the photoelectric sensor (422) is mounted on the mounting base (421).

5. A method for rapid processing of nickel electrodeposition starter sheets, employing the rapid processing apparatus for nickel electrodeposition starter sheets as described in any one of claims 1-4, characterized in that, Includes the following steps: S1. The nickel foil is fed to the laser cutting mechanism (4) by the feeding mechanism (3), and the laser cutting mechanism (4) cuts the nickel foil into square nickel sheets; S2, The additive printing mechanism (7) processes a square plastic base frame; S3. The copper foil is conveyed to the welding mechanism (5) by the feeding mechanism (3); S4. Transfer the cut nickel foil sheet to the top of the plastic base frame and the copper foil strip; S5. Weld one end of the copper foil strip to the electrode tab (81) using the welding mechanism (5); S6. Cut the copper foil strip by laser cutting mechanism (4), and weld the other end of the cut copper foil strip to the nickel foil tab (81) by pressing assembly (52) and welding mechanism (5) to form a conductive sling (82). S7. Additive printing is performed around the nickel foil to form a complete border. After the conductive rod (83) is assembled by a robot, the nickel electrode assembly starter sheet is transferred to the electrode assembly tank hanger.

6. The rapid processing method for nickel electrodeposition starter sheets according to claim 5, characterized in that, The plastic frame in step S2 is made of thermoplastic material, selected from one of nylon, polyethylene, polyvinyl chloride, polypropylene, polystyrene, and ABS, with a melting temperature of 120~240℃ and a heat distortion temperature of >100℃.

7. The rapid processing method for nickel electrodeposition starter sheets according to claim 6, characterized in that, The conductive sling (82) in step S5 has a thickness of 0.1~0.5mm and a width of 90~300mm, and is fixed by ultrasonic welding; The square nickel sheet in step S1 has 3 to 6 positioning holes on its edge, with a hole diameter of 3 to 8 mm and a hole edge distance of 2 to 7 mm.

Citation Information

Patent Citations

  • Welding table and welding method for aluminum-nickel composite electrode lug

    CN105563048A

  • Method and apparatus for additively producing electrochemical devices

    WO2024089010A1