CN114657608A - Light-duty electrode copper foil apparatus for producing - Google Patents
Light-duty electrode copper foil apparatus for producing Download PDFInfo
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- CN114657608A CN114657608A CN202210391318.1A CN202210391318A CN114657608A CN 114657608 A CN114657608 A CN 114657608A CN 202210391318 A CN202210391318 A CN 202210391318A CN 114657608 A CN114657608 A CN 114657608A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/20—Separation of the formed objects from the electrodes with no destruction of said electrodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
A light electrode copper foil production device is characterized in that a plurality of anode plates are arranged in an inner cavity of an electrolytic cell, a titanium roller is concentric with the semicircular outline of the anode plates, a wind-up roller is arranged beside the titanium roller, a guide roller is arranged between the wind-up roller and the titanium roller, and the wind-up roller is in transmission connection with a power unit; the two ends of the titanium roller are provided with wire grooves, the two ends of the wind-up roller are provided with wind-up grooves, the two ends of the guide roller are provided with guide grooves, the two ends of the wire grooves are provided with insulating belts, the inner ends of the wind-up grooves are provided with insulating blocks, and one end of the titanium roller is sleeved with a conductive slip ring and connected to the logic module; and two ends of the wind-up roll are sleeved with conductive slip rings and connected with the logic module in parallel. Because the insulating tape can avoid the reduction of copper electrolyte, only produce the copper foil in the middle part of the titanium roller to produce the copper wire in the wire groove of both sides, then guide through guide roll, wind-up roll, therefore the copper foil tears the trend and will be born by the copper wire, simultaneously, when the copper wire breaks off, logic module detection end is empty, thus stop the transmission work rapidly, make the copper foil probability of rupture reduce to extremely low, broken through in the trade because of the technological bottleneck that the fracture hidden danger restricts minimum production thickness.
Description
Technical Field
The invention belongs to the technical field of copper foil production, and particularly relates to a light electrode copper foil production device.
Background
The copper foil is a continuous metal foil for a basal layer of a circuit board, is used as an inner layer conductor of a base material, is arranged on the bottom surface of the base material substrate to provide the electric conduction and electromagnetic shielding effects, is one of basic materials of the electronic industry, is also a current collector substrate of various batteries, is widely applied to various electronic equipment, and has huge demand in domestic and foreign markets.
When the copper foil on the market is applied to battery manufacturing at present, due to the influence of the self weight of the copper foil, the energy density of the battery for producing a battery product is limited, and with the development of market demands, no matter the copper foil is a lithium battery of a digital product or a power battery of an electric automobile, a user wants the energy density of the battery to be high enough and the weight of the battery to be light enough, so that the conventional copper foil cannot meet the increasingly high performance requirements of the current market on the power battery. Although the existing production technology reduces the generated thickness of the copper foil by controlling the electroplating time, if the generated thickness of the copper foil is too thin, the thin copper foil layer is easy to break and deform due to mechanical vibration or operation error in the production process, especially the continuous production operation of the copper foil, the broken thin copper foil can cause the whole roll of base material to be wasted, so that a large amount of production materials and time and labor cost are lost, in order to prevent the breakage hidden trouble, the minimum thickness generated by the copper foil is controlled within a certain size, so that the minimum thickness cannot be reduced to a smaller range, and the energy density of a finished battery is restricted to a certain extent.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a light electrode copper foil production device which is used for effectively avoiding the production hidden trouble of fracture deformation in the manufacturing process of a thin-layer copper foil, breaking through the minimum thickness limitation of the thin-layer copper foil produced in the industry and improving the battery energy density and the service performance of a power battery.
The invention is implemented by the following technical scheme: the utility model provides a light-duty electrode copper foil apparatus for producing, includes and divides liquid jar, electrolysis trough, anode plate, titanium roller, wind-up roll, guide roll, power unit, a plurality of conductive slip ring, logic module, control module. The electrolytic cell is a hollow container with an upper opening, the inner cavity of the electrolytic cell is provided with a plurality of anode plates in parallel, the top edges of the anode plates are provided with grooves with semicircular profiles, the titanium roller is concentrically arranged on a central shaft with the semicircular profiles of the grooves, the wind-up rollers are arranged beside the titanium roller at intervals, the guide roller is arranged between the wind-up rollers and the titanium roller, the power unit is a rotary power device, and the wind-up rollers, the guide roller and the titanium roller are all in transmission connection with the power unit; the two ends of the titanium roller are respectively provided with a circle of wire grooves, the two ends of the wind-up roller are respectively provided with a circle of winding grooves, the two ends of the guide roller are respectively provided with a circle of guide grooves, the wire grooves, the winding grooves and the guide grooves on the two sides are respectively superposed on two reference surfaces, the two ends of each wire groove are respectively provided with a layer of insulating tape, and the insulating tapes are attached to the surface of the titanium roller; an insulation block is arranged at the joint part of the inner end of each winding groove, the insulation block is embedded in the titanium roller body, and the two ends of the insulation block are butted with the winding roller body in a sleeving manner; the shaft body at one end of the titanium roller is sleeved with the conductive slip ring and is connected with a ground wire end of the logic module in a conduction mode through a wire; the two end shaft bodies of the winding roller are respectively sleeved with one conductive slip ring and are connected to the detection end of the logic module through a lead, the power unit is controlled and driven by the control module, and the feedback end of the logic module is connected to the control module.
Furthermore, the invention also comprises an alarm module, and the feedback end of the logic module is connected with the alarm module.
Furthermore, the invention also comprises a polishing wheel, a cleaning spray head and a drying spray head, wherein the polishing wheel is attached to the surface of one side of the titanium roller, which is far away from the guide roller, and is in transmission connection with the power unit; the cleaning spray head and the drying spray head are fixed on one side of the titanium roller from bottom to top, the spray head faces the surface area of the roller body between the titanium roller and the guide roller, a cleaning medium in the cleaning spray head is foam liquid, and a drying medium in the drying spray head is hot air.
Furthermore, the anode plate is communicated with the positive electrode of a power supply, the titanium roller is communicated with the negative electrode of the power supply, and the control module is connected with a time delay relay on the power supply switch circuit.
Furthermore, copper foils are attached to the middle roller surfaces of the titanium roller, the guide roller and the winding roller, copper wires are embedded into the wire grooves, the guide groove and the winding groove, the two copper wires are arranged on two sides of the copper foils, and the directions of the copper wires and the copper foil extending paths are the same.
Further, the cylindrical ends at the two ends of the insulating block are sleeved with the inner hole of the roller body of the winding roller to form transition fit or interference fit, the ends at the two ends of the insulating block are provided with flat keys or splines, and the winding roller is provided with a plurality of fixing pins which penetrate through the roller body and the ends of the insulating block.
Further, wind-up roll middle part roll body is equipped with the breach groove, and its roll body surface laminating is equipped with the buffering shell simultaneously, buffering shell tip is the circular arc casing, is equipped with the slot in its circular arc end, the embedding is equipped with the clamp plate in the slot, the clamp plate top is equipped with and runs through the holding screw of slot cell wall, the wind-up roll inner chamber is equipped with wind-up shaft, digging arm, fixed arm, extension spring, the wind-up shaft is located wind-up roll inner chamber axis department, digging arm one end with buffering shell inner wall fixed connection, the other end with the wind-up shaft registrates and forms articulated assembly, the fixed arm is fixed in wind-up roll inner wall department, extension spring both ends end is fixed respectively the digging arm with on the fixed arm, the digging arm supports under extension spring elastic force the cell wall in breach groove.
Further, the outer side of the winding roller, which is attached to the winding groove, is provided with a threaded sleeve, the threaded sleeve is assembled with the guide roller in a threaded sleeving manner, and the edge of the surface of the winding groove, which faces the insulating block, is provided with a fillet.
Furthermore, the diameter of the middle roller body of the titanium roller is equal to that of the wire groove, the diameter of the middle roller body of the guide roller is equal to that of the guide groove, and the diameter of the middle roller body of the winding roller is equal to that of the winding groove.
Furthermore, the shaft end of the guide roller is installed on the power unit through a sliding block type bearing seat.
Furthermore, the width of the wire groove, the width of the coiling groove and the width of the guide groove are equal, and the size of the wire groove, the coiling groove and the guide groove is less than or equal to 2 mm.
Furthermore, the insulating tape is made of polytetrafluoroethylene.
Furthermore, the insulating block is made of PEEK.
Furthermore, the layer body of the insulating tape at the outer end of the wire groove extends to cover the edge of the outer end of the titanium roller.
Furthermore, the end face of the titanium roller and the surface of the shaft end close to the end face are both provided with insulating coatings, and the insulating coatings are made of polytetrafluoroethylene.
The invention has the beneficial effects that: the device utilizes groove bodies and insulating structures which are symmetrically arranged on two sides of various roller bodies to form a synchronous production curling structure aiming at copper foils and copper wires on two sides, and because the insulating materials of the insulating belts on two sides of the wire groove can avoid the reduction reaction of copper electrolyte, only the surface parts in the wire groove and the middle section of the titanium roller can generate the reduction copper-generating reaction, copper ions are induced by the parts to generate the copper foils in the middle parts of the titanium roller, copper wires are generated in the wire grooves on two sides, and then the copper foils and the copper wires on two sides form an integral system with the same extension direction through the guide action of a guide roller, a wind-up roller and the corresponding groove bodies, when the copper foils are subjected to tearing force due to mechanical vibration or operation error, because the tearing path of a planar object is always generated from the edge of the side edge first and then extends to the middle part, therefore, the tearing trend of the side edge of the copper foil can be independently borne by the copper wires which are arranged on two sides in an isolated way, the fracture risk of the copper foil is effectively avoided; meanwhile, two different isolation structures formed by the attachment of the insulating tape and the embedding of the insulating block are utilized, the shaft end of the titanium roller and the shaft end of the winding roller are in different potential states, when a copper wire for communicating the titanium roller and the winding roller is broken, the shaft end of the winding roller is changed from a low level to empty through the detection end potential of the logic module connected with the conductive slip ring and the lead, so that the shaft end of the winding roller is timely fed back to the power unit to rapidly stop transmission work, the first-time pause action of rotating pieces such as the titanium roller is enabled to prevent the copper foil from being further damaged, and the maintenance work is carried out. Through the double protection effects of copper wire stress protection and electrode feedback blocking, the accident probability of copper foil breakage is reduced to be extremely low, the technical bottleneck that the minimum production thickness is limited due to breakage hidden danger in the industry is broken through, copper foil products with smaller thickness can be smoothly produced through the equipment, and the energy density and the service performance of the finished battery are further improved.
Drawings
FIG. 1 is a top view of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is an inside elevational view of one embodiment of the invention;
FIG. 4 is a front view showing the internal structure of a guide roll according to an embodiment of the present invention;
FIG. 5 is a side view showing the internal structure of the guide roller according to an embodiment of the present invention;
FIG. 6 is a top plan view of an operational state of an embodiment of the present invention;
FIG. 7 is a side view of an operational state of an embodiment of the present invention;
FIG. 8 is an isometric view of a copper foil and wire transfer structure in accordance with an embodiment of the invention;
FIG. 9 is a logic control diagram of an embodiment of the present invention.
In the figure: 1-liquid separation cylinder, 2-electrolytic bath, 2 a-copper electrolyte, 2 b-copper foil, 2 c-copper wire, 3-anode plate, 4-titanium roller, 4 a-wire groove, 4 b-insulating tape, 4 c-insulating coating, 5-winding roller, 5 a-winding groove, 5 b-insulating block, 5 c-screw sleeve, 5 d-flat key, 5 e-fixed pin, 5 f-notch groove, 5 g-buffer shell, 5 h-slot, 5 i-pressing plate, 5 j-set screw, 5 k-winding shaft, 5 l-movable arm, 5 m-fixed arm, 5 n-tension spring, 6-guide roller, 6 a-guide groove, 6 b-7-power unit, 8-conductive slip ring, 8 a-lead wire, 9-logic module, 10-control module, 11-alarm module, 12-polishing wheel, 13-cleaning spray head, 14-drying spray head, 15-power supply and 15 a-time delay relay.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
As shown in fig. 1-3, a light electrode copper foil 2b production device comprises a liquid separating cylinder 1, an electrolytic tank 2, an anode plate 3, a titanium roller 4, a winding roller 5, a guide roller 6, a power unit 7, a plurality of conductive slip rings 8, a logic module 9, a control module 10 and an alarm module 11. The electrolytic bath 2 is a hollow container with an upper opening, the inner cavity of the electrolytic bath is provided with a plurality of anode plates 3 in parallel, the top edges of the anode plates 3 are provided with grooves with semicircular profiles, the titanium roller 4 is concentrically arranged on a central shaft with the semicircular profiles of the grooves, the wind-up rollers 5 are arranged beside the titanium roller 4 at intervals, the guide roller 6 is arranged between the wind-up rollers 5 and the titanium roller 4, the power unit 7 is a rotary power device, and the wind-up rollers 5, the guide roller 6 and the titanium roller 4 are all in transmission connection with the power unit 7; two ends of the titanium roller 4 are respectively provided with a circle of wire grooves 4a, two ends of the winding roller 5 are respectively provided with a circle of winding grooves 5a, two ends of the guide roller 6 are respectively provided with a circle of guide grooves 6a, the wire grooves 4a, the winding grooves 5a and the guide grooves 6a on two sides are respectively superposed on two reference surfaces, two ends of each wire groove 4a are respectively provided with a layer of insulating tape 4b, and the insulating tapes 4b are attached to the surface of the titanium roller 4; an insulation block 5b is arranged at the joint part of the inner end of each winding groove 5a, the insulation block 5b is embedded in the roller body of the titanium roller 4, and the two ends of the insulation block are butted with the roller body of the winding roller 5 in a sleeving manner; a shaft body at one end of the titanium roller 4 is sleeved with a conductive slip ring 8 and is connected with a ground wire end of the logic module 9 in a conduction mode through a lead 8 a; the two end shaft bodies of the wind-up roll 5 are respectively sleeved with a conductive slip ring 8 and are connected to the detection end of the logic module 9 through a lead 8a, the power unit 7 is controlled and driven by the control module 10, the feedback end of the logic module 9 is respectively connected to the control module 10 and the alarm module 11 to form the logic control module 10 shown in fig. 9, in addition, the anode plate 3 is communicated with the positive pole of the power supply 15, the titanium roll 4 is communicated with the negative pole of the power supply 15, and the control module 10 is connected to a delay relay 15a on the switch circuit of the power supply 15.
Because the insulation material of the insulation tapes 4b at the two sides of the wire groove 4a can avoid the reduction reaction of the copper electrolyte 2a, only the surface parts inside the wire groove 4a and the middle section of the titanium roller 4 can generate the reduction copper generation reaction, copper ions are induced by the parts to generate copper foils 2b in the middle of the titanium roller 4 (as shown in figure 6), copper wires 2c are generated in the wire grooves 4a at the two sides, then the copper foils 2b pass through the guide roller 6 and the winding roller 5, the copper wires 2c pass through the guide groove and the winding groove 5a, the copper foils 2b and the copper wires 2c at the two sides form an integral system with the same extension direction, the winding paths of the copper foils 2b and the copper wires 2c are shown in figures 7-8, at the moment, the copper foils 2b are attached to the middle roller surfaces of the titanium roller 4, the guide roller 6 and the winding roller 5, the copper wires 2c are embedded in the grooves of the wire groove 4a, the guide groove 6a and the winding groove 5a, and the copper wires 2c are arranged at the two sides of the copper foils 2b, the copper wire 2c and the copper foil 2b extend in the same direction. When the copper foil 2b is subjected to tearing force due to mechanical vibration or operation errors, the tearing path of the planar object always generates from the edge of the side edge first, and then the crack extends to the middle part, so that the tearing trend of the side edge of the copper foil 2b is born by the copper wires 2c arranged on the two sides in an isolated manner, and the self-fracture risk of the copper foil 2b is effectively avoided. Meanwhile, two different isolation structures are formed by attaching the insulating tape 4b and embedding the insulating block 5b, wherein the insulating tape 4b only provides the surface layer electrolysis inhibiting function, the insulating block 5b can provide the double functions of surface layer electrolysis inhibiting and internal current blocking, so that the shaft ends of the titanium roller 4 and the wind-up roller 5 are in different potential states, when the copper wire 2c for connecting the winding roller and the winding roller is broken, the electric potential of the shaft end of the winding roller 5 is changed from low level to empty through the electric conduction slip ring 8 and the detection end of the logic module 9 connected with the lead 8a, so as to trigger the feedback end of the logic module 9 to feed back a turn-off signal to the control module 10, thereby enabling the power unit 7 to stop transmission work rapidly in time, then the control module 10 stops the power supply 15 in a delayed way through the delay relay 15a to block the foil reaction, meanwhile, the detection end can also feed back to the alarm module 11 to start the audible and visual alarm so that the staff can overhaul in time.
As shown in fig. 2, the present embodiment further includes a polishing wheel 12, a cleaning nozzle 13, and a drying nozzle 14, wherein the polishing wheel 12 is disposed in close contact with a side surface of the titanium roller 4 away from the guide roller 6, and is in transmission connection with the power unit 7, and the power unit 7 drives the polishing wheel 12 to rotate synchronously with the titanium roller 4, so that the polishing wheel 12 performs polishing operation on the surface of the titanium roller 4 at the rear end of the guide roller 6, thereby ensuring the surface quality of the attached copper foil 2b in continuous production; the cleaning sprayer 13 and the drying sprayer 14 are fixed on one side of the titanium roller 4 from bottom to top, the sprayers face the surface area of the roller body between the titanium roller 4 and the guide roller 6, a cleaning medium in the cleaning sprayer 13 is foam liquid, a drying medium in the drying sprayer 14 is hot air, when the titanium roller 4 rotates clockwise (the direction is in accordance with the figure 2) to convey the copper foil 2b, through the flexible cleaning and hot air isolation and drying effects of the foam liquid, safe scouring and drying operations are applied to the generated thin-layer copper foil 2b to avoid fracture hidden dangers, and the winding roller 5 is ensured to collect and obtain a clean, dry and complete-shape copper foil 2b coiled material.
As shown in fig. 4, the cylindrical ends at the two ends of the insulating block 5b are sleeved with the inner hole of the roller body of the winding roller 5, and form transition fit to ensure the stability of the winding roller 5 and the shape of the subsequent copper foil 2b to be correct, the ends at the two ends of the insulating block 5b are provided with flat keys 5d, the winding roller 5 is provided with a plurality of fixing pins 5e penetrating through the roller body and the ends of the insulating block 5b, meanwhile, the insulating block 5b is made of PEEK, the good electrical insulation property of PEEK is utilized, so that the electric potentials of the shaft end and the middle roller body of the winding roller 5 are effectively insulated and isolated and blocked by the insulating block 5b, meanwhile, the high mechanical strength performance of PEEK is utilized, the tangential reinforcement of the flat key 5d at the shaft end of the insulating block 5b and the axial reinforcement of the fixing pin 5e on the roller body are combined, the insulating assembly with stable action, high precision and good mechanical performance is formed, and the winding roller body of the copper foil 2b is formed by stable action of the winding roller body, the electric potentials of the shaft end and the copper wire 2c are not influenced by the electric potentials of the middle roller body and the copper foil 2b, the detection accuracy of the logic module 9 on the electric potential of the copper wire 2c is guaranteed, and the triggered turn-off protection action can be normally implemented.
As shown in FIG. 5, a gap 5f is provided on the middle roller body of the wind-up roller 5, a buffer shell 5g is provided on the surface of the roller body, the end of the buffer shell 5g is an arc shell, a slot 5h is provided in the arc end, a pressing plate 5i is embedded in the slot 5h, a set screw 5j penetrating the slot wall of the slot 5h is provided above the pressing plate 5i, a wind-up shaft 5k, a movable arm 5l, a fixed arm 5m and a tension spring 5n are provided in the inner cavity of the wind-up roller 5, the wind-up shaft 5k is located at the axis of the inner cavity of the wind-up roller 5, one end of the movable arm 5l is fixedly connected with the inner wall of the buffer shell 5g, the other end is sleeved with the wind-up shaft 5k to form a hinged assembly, the fixed arm 5m is fixed at the inner wall of the wind-up roller 5, the two ends of the tension spring 5n are respectively fixed on the movable arm 5l and the fixed arm 5m, the movable arm 5l butts against the slot wall of the gap 5f under the elastic force of the tension spring 5n, through the structure, the traditional rigid fixation of the copper foil 2b is changed into an elastic fixation mode, and impact resistance protection is further provided for the copper foil 2 b.
When the rotation speeds of the roller bodies are inconsistent due to operation and debugging errors, if the rotation speed of the titanium roller 4 is too low or the rotation speed of the winding roller 5 is too high, the copper foil 2b between the titanium roller 4 and the titanium roller is subjected to a large tearing force, or mechanical impact caused by external interference drinking factors, the copper foil 2b is also subjected to a huge instant tearing force, even if the copper wires 2c on two sides are protected, due to the fact that the shutdown action of the power unit 7 is delayed, the copper foil 2b can still be rapidly damaged after the copper wires 2c are broken due to the fact that the amplitude of the instant tearing force is too large, however, the instant impact on the copper foil 2b can be effectively buffered through the arrangement of the buffer shell 5g, an operator can start all parts to act to enable the winding roller 5 to rotate in the counterclockwise direction after stably pressing the ends of the copper foil 2b through the set screw 5j and the pressing plate 5i (as shown by an arc arrow in figure 5), if above-mentioned interference condition appears, copper foil 2b will receive the power of tearing in the twinkling of an eye towards the right side (the direction is according to fig. 5), after tearing off side copper wire 2c, then can drive buffer shell 5g earlier and follow the articulated action of power arm and move towards clockwise (the direction is according to fig. 5), the rotation action of 5l of digging arm is provided the buffering time by extension spring 5 n's tension this moment, utilize this buffering time to provide sufficient execution time for the turn-off action that triggers behind the fracture of copper wire 2c, thereby ensure that power unit 7 can stop the rotation action of each roll body in the fracture of copper wire 2c smoothly, protected thin layer copper foil 2b not influenced by the power of tearing in the twinkling of an eye by a wide margin. On the basis, triple protection effects of stress protection of the copper wire 2c, electrode feedback blocking and impact resistance protection of the buffer shell 5g are formed, and the morphological integrity of the produced thin-layer copper foil 2b is further guaranteed.
In this embodiment, a thread insert 5c is provided on the outer side of the wind-up roll 5, which is attached to the wind-up groove 5a, the thread insert 5c is assembled with the guide roll 6 by a thread-fitting manner, and the thread insert 5c and the insulating block 5b are provided with rounded corners (as shown in fig. 4) toward the edge of the surface body of the godet 4 a. Through the thread distance adjusting effect of the screw sleeve 5c, the copper wire 2c is embedded into the winding groove 5a and then is pressed by the screw sleeve 5c in a screwing mode, so that the gap between the copper wire 2c and the side wall of the winding groove 5a is reduced as much as possible, the multilayer copper wire 2c is ensured to be stacked layer by layer in a compact groove body space, when the curling form of the multilayer copper wire 2c collapses, the copper wire 2c can be further flattened towards a right screwing nut (the direction is in accordance with a figure 4), the curling forms of the copper wire 2c and the copper foil 2b are ensured to be consistent as much as possible, and the tearing force borne by the copper foil 2b can be smoothly shared to the copper wires 2c on the two sides. Meanwhile, due to the pressing form, edges of the thread sleeve 5c and the insulating block 5b can scratch the copper wire 2c, and the edges of the thread sleeve 5c and the insulating block 5b are designed to be in a fillet form, so that the copper wire 2c is protected from being cut and scratched, and the copper wire is smoothly brought into the winding groove 5a by the rotating winding roller 5 in the flexible contact process with the fillet cambered surface.
In this embodiment, the diameter of the middle roller body of the titanium roller 4 is equal to that of the wire groove 4a, the diameter of the middle roller body of the guide roller 6 is equal to that of the guide groove 6a, and the diameter of the middle roller body of the winding roller 5 is equal to that of the winding groove 5 a. Because the middle roller body is attached with the copper foil 2b, and the two side groove bodies are attached with the copper wires 2c, the equal diameters of the roller body and the groove bodies can ensure that the copper foil 2b and the copper wires 2c are same in bending form, so that the tearing force borne by the copper foil 2b can be smoothly shared to the two side copper wires 2c, and the form completeness of the copper foil 2b is further ensured.
In this embodiment, the shaft end of the guide roll 6 is installed on the power unit 7 through the slider type bearing seat 6b, and the guide roll 6 is adjusted to a proper position to ensure that the tension of the attached copper foil 2b is proper by utilizing the adjustable function of the slider type bearing seat 6b, so that when the fault maintenance of the fracture of the copper wire 2c occurs, the position of the guide roll 6 can be adjusted by utilizing the slider type bearing seat 6b, and the tension of the copper foil 2b is recovered to a normal level.
In the embodiment, the widths of the wire groove 4a, the coiling groove 5a and the guide groove 6a are equal, the sizes of the wire groove 4a, the coiling groove and the guide groove are not more than 2mm, the widths of the groove bodies are equal, the guiding form of the copper wire 2c can be ensured to be correct, the cross section size of the generated copper wire 2c is in a small range by limiting the width of the wire groove 4a, the copper wire 2c belongs to consumables, the copper wire 2c is controlled to be in a small size, secondary dissolved copper utilization after recovery can be facilitated, the effect of producing the copper foil 2b can not be influenced appreciably, and a small amount of copper wire 2c is recycled, so that a high-quality ultrathin copper foil 2b product is produced normally.
In this embodiment, the insulating tape 4b is made of teflon, and the excellent electrical insulation property of teflon is utilized to ensure that the copper-containing electrolyte 2a cannot react on the surface of the insulating tape 4b, and the layer body of the insulating tape 4b at the outer end of the wire groove 4a extends to cover the outer end edge of the titanium roller 4, so as to ensure that the copper-containing electrolyte 2a cannot react on the outer end edge of the titanium roller 4, and in addition, the end surface of the titanium roller 4 and the shaft end surface near the end surface are both provided with the insulating coating 4c made of teflon (as shown in fig. 3), and the copper electrolyte 2a cannot react with these parts, so that copper ions can only reduce and generate the form of the copper foil 2b and the copper wire 2c in the middle of the titanium roller 4 and the wire groove 4 a. The corrosion resistance of the polytetrafluoroethylene material can ensure that the insulating tape 4b and the insulating coating 4c have good performance after being soaked in the copper electrolyte 2a for a long time, so as to adapt to long-time continuous production operation.
The working principle of the embodiment is as follows:
s1: the liquid separating cylinder 1 is started to pump the copper sulfate electrolyte into the electrolytic tank 2, the anode plate 3 is communicated with the positive pole of the power supply 15, the titanium roller 4 is communicated with the negative pole of the power supply 15, and the anode plate 3 reacts as follows:
H20-2e＝2H++O2↑，SO4 2-+2H+＝H2SO4
the sulfate radical is combined with hydrogen ions at the anode to produce sulfuric acid again so as to be recycled in the initial copper dissolving operation, and meanwhile, the surface reaction of the cathode titanium roller 4 is as follows:
Cu2++2e＝Cu↓
at this time, the precipitated copper is attached to the surface of the titanium roller 4 at the middle part to form a copper foil 2b, and is attached and formed at the part of the bottom of the titanium roller 4, which is in contact with the copper electrolyte 2a (as shown in fig. 7), as shown in fig. 1, because the electrical insulativity of the insulating tapes 4b at the two sides of the titanium roller 4 cannot communicate with the electrodes, raw copper cannot be reduced on the surface of the insulating tapes 4b, but the wire slot 4a between the adjacent insulating tapes 4b has a titanium roller 4 exposed surface, the raw copper is reduced in the narrow gap on the surface of the wire slot 4a to form a copper wire 2c, and is attached and formed at the part of the bottom of the wire slot 4a, which is in contact with the copper electrolyte 2a (the path is the same as the copper foil 2b shown in fig. 7), at this time, the cathode current density is regulated to control the electrolytic reaction speed, and the thickness of the copper foil 2b is lower than 4.5 um.
S2: the titanium roller 4 is driven by a power unit 7 to rotate at a proper rotating speed, as shown in fig. 7, at the moment, the titanium roller 4 rotates anticlockwise, the copper foils 2b and the copper wires 2c are taken out of the liquid level under the condition of controlling the electrolysis speed and in a proper thickness, a plurality of cleaning spray heads 13 are started to wash the liquid on the surfaces of the copper foils 2b and the copper wires 2c into the electrolysis bath 2, then a plurality of drying spray heads 14 are started to dry the residual moisture of the copper foils 2b and the copper wires 2c, when the ends of the copper foils 2b and the copper wires 2c are close to the guide roller, the copper foils 2b and the copper wires 2c are manually stripped to bypass the guide roller and are arranged on the winding roller 5 (manual stripping is needed only in the initial stage and automatic stripping is carried out later), wherein the ends of the copper foils 2b are pressed and fixed on a buffer shell 5g of the winding roller 5 through a pressing plate 5i (as shown in fig. 5), the ends of the copper wires 2c are screwed and clamped and fixed in the winding groove 5a through a screw sleeve 5a, along with the synchronous rotation of the winding roller 5, the copper foil 2b and the copper wire 2c form a winding path as shown in fig. 7-8.
S3: because the titanium roller 4 is communicated with the negative electrode of the power supply 15, the conductive slip ring 8 at the shaft end of the titanium roller 4 is communicated with the ground wire end of the logic module 9, and then the conductive slip rings 8 at the shaft ends of the two ends of the winding roller 5 are communicated with the detection end of the logic module 9, so as to form a state shown in figure 6, when the copper foil 2b and the copper wire 2c are normally wound, because the insulating tape 4b is only attached to the surface layer on the titanium roller 4, the potential of the ground wire end of the logic module 9 can be sequentially transmitted to the shaft end of the winding roller 5 through the conducting wire 8a, the conductive slip ring 8, the shaft end of the titanium roller 4, the wire groove 4a, the copper wire 2c and the winding groove 5a, so that the detection end potential of the logic module 9 connected with the shaft end of the winding roller 5 through the conductive slip ring 8 is pulled down, when the thin layer of the copper foil 2b has a fracture tendency due to mechanical vibration or operation error, because a planar object crack is generated from the edge, the copper wire 2c at the two sides are firstly broken, when the copper wire 2c is broken, the conductor between the communicating wire groove 4a and the winding groove 5a is cut off, meanwhile, the insulating block 5b isolates the electric potential in the middle of the winding roller 5 from the shaft end, so the negative electric potential carried by the titanium roller 4 and the copper foil 2b is only transmitted to the middle of the winding roller 5 and then is blocked by the insulating block 5b, therefore, at this time, the negative potentials carried by the copper wire 2c and the copper foil 2b cannot be transmitted to the shaft end of the wind-up roll 5, so that the detection end of the logic module 9 communicated with the shaft end conductive slip ring 8 is changed from the low potential to the null position, at this time, the logic module 9 triggers a braking instruction through a jump signal of the detection end, signals are transmitted to the control module 10 through the feedback end, so that the control module 10 performs emergency braking control on the power unit 7, the titanium roller 4 and the winding roller 5 driven by the control module are forcibly braked and shut down, and the thin copper foil 2b is automatically stopped from being wound to prevent the thin copper foil from being torn.
In addition, the control module 10 also sends a turn-off instruction to the delay relay 15a to turn off the power supply 15, so that the titanium roller 4 and the anode plate 3 lose electrodes and interrupt the reduction reaction to prevent the copper foil 2b from continuously thickening, and because the action of the delay relay 15a has delay, the action lags behind the turn-off instruction of the power unit 7, the braking action of the power unit 7 does not conflict with the turn-off action of the power supply 15, and the braking action is preferentially implemented to ensure the safety of the copper foil 2 b; the feedback end of the logic module 9 can also send a signal to the alarm module 11, and the sound-light alarm of the alarm module 11 is started to enable the staff to arrive at the site for maintenance. The buffer shell 5g of the wind-up roll 5 can also buffer the instantaneous impact by the hinged structure of the buffer shell on the movable arm 5l, and provides multiple protection measures for the thin copper foil 2b to ensure the complete shape of the thin copper foil.
S4: after troubleshooting of the maintenance personnel is completed, the position of the adjustable bearing seat is readjusted to enable the copper foil 2b guided by the guide roller 6 to be in proper tension, the broken copper wires are connected through gluing or spot welding (preferably, in other embodiments, the broken copper wires can be connected through welding glue or nail-free glue), then the power supply 15 and the power unit 7 are restarted to enable the titanium roller 4 to continue to be subjected to copper production and rotation, normal production operation of the thin-layer copper foil 2b is ensured, and therefore the battery energy density of a terminal battery product is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and it should be understood that the present invention is capable of modification and variation of other equivalent forms within the scope of the appended claims, and all such modifications and variations are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a light-duty electrode copper foil apparatus for producing, is including dividing hydraulic cylinder, electrolysis trough, anode plate, titanium roller, wind-up roll, guide roll, power unit, a plurality of slip rings that lead electricity, logic module, control module, its characterized in that: the device is characterized in that copper-containing electrolyte is filled in the liquid separating cylinder, the positive pressure end of the copper-containing electrolyte is connected with the inner cavity of the electrolytic cell through a liquid guide pipe, the electrolytic cell is a hollow container with an upper opening, the inner cavity of the electrolytic cell is provided with a plurality of anode plates in parallel, the top edges of the anode plates are all provided with grooves with semicircular profiles, the titanium roller is concentrically arranged on the central shaft with the semicircular profiles of the grooves, the winding rollers are arranged on one side of the titanium roller at intervals, the guide roller is arranged between the winding rollers and the titanium roller, the power unit is a rotary power device, the winding rollers, the guide roller and the titanium roller are all in transmission connection with the power unit, the two ends of the titanium roller are respectively provided with a wire groove, the two ends of the winding rollers are respectively provided with a winding groove, the two ends of the guide roller are respectively provided with a guide groove, and the wire grooves, the winding grooves and the guide grooves on the two sides are respectively superposed on two reference surfaces, every the both ends in silk groove all are equipped with the one deck insulated tape, the insulated tape attached in titanium roller surface, every the laminating position of the inner of winding up the groove all is equipped with the collets, the collets imbed in the titanium roller roll body, its both ends with the winding up roller roll body docks through the registing mode, the one end axis body registrates of titanium roller be equipped with electrically conductive sliding ring to through the wire turn-on connect in logic module's earth terminal, the both ends axis body of winding up roller respectively registrates and is equipped with one electrically conductive sliding ring to connect in logic module's sense terminal jointly through the wire, the power unit by control module control drive, logic module's feedback end connect in control module.
2. The light weight electrode copper foil production apparatus of claim 1, wherein: the titanium roller is communicated with the negative electrode of the power supply, and the control module is connected with a time delay relay on a power switch circuit.
3. The light-weight electrode copper foil production apparatus of claim 1, wherein: the titanium roller cleaning device is characterized by further comprising a polishing wheel, a cleaning sprayer and a drying sprayer, wherein the polishing wheel is attached to one side surface, far away from the guide roller, of the titanium roller and is in transmission connection with the power unit, the cleaning sprayer and the drying sprayer are fixed on one side of the titanium roller from bottom to top and face the titanium roller surface area between the titanium roller and the guide roller through the sprayers, cleaning media in the cleaning sprayer are foam liquid, and drying media in the drying sprayer are hot air.
4. The light weight electrode copper foil production apparatus of claim 1, wherein: the titanium roller, the guide roller, the attached copper foil that is equipped with of middle part roll surface of wind-up roll, the silk groove, the guide way, the groove embedding of rolling up the groove is equipped with the copper wire, two the copper wire cloth is in the both sides of copper foil, the copper wire with the direction of copper foil extension route is the same.
5. The light-weight electrode copper foil production apparatus of claim 1, wherein: the cylindrical ends at the two ends of the insulating block are sleeved with the inner hole of the roller body of the winding roller to form transition fit or interference fit, flat keys or splines are arranged at the ends at the two ends of the insulating block, and a plurality of fixing pins which penetrate through the roller body and the ends of the insulating block are arranged on the winding roller.
6. The light weight electrode copper foil production apparatus of claim 1, wherein: the utility model discloses a take-up roller, including wind-up roller middle part roll body, buffer shell, movable arm, fixed arm, extension spring, wind-up roller inner chamber, wind-up roller middle part roll body is equipped with the breach groove, and its roll body surface laminating is equipped with the buffering shell simultaneously, buffer shell tip is the circular arc casing, is equipped with the slot in its circular arc end, the embedding is equipped with the clamp plate in the slot, the clamp plate top is equipped with and runs through the holding screw of slot cell wall, the wind-up roller inner chamber is equipped with wind-up shaft, movable arm, fixed arm, extension spring, the wind-up shaft is located wind-up roller inner chamber axis department, movable arm one end with buffer shell inner wall fixed connection, the other end with the wind-up shaft registrates and forms articulated assembly, the fixed arm is fixed in wind-up roller inner wall department, extension spring both ends are fixed respectively the movable arm with on the fixed arm, the movable arm supports under extension spring elastic action the cell wall in breach groove.
7. The light weight electrode copper foil production apparatus of claim 1, wherein: the winding roller is provided with a threaded sleeve outside the winding groove, the threaded sleeve is assembled with the guide roller in a threaded sleeving mode, and the threaded sleeve and the insulating block face the edge of the face body of the winding groove to form a fillet.
8. The light weight electrode copper foil production apparatus of claim 1, wherein: the middle roller body of the titanium roller is equal to the diameter of the wire groove, the middle roller body of the guide roller is equal to the diameter of the guide groove, the middle roller body of the winding roller is equal to the diameter of the winding groove, the wire groove, the winding groove and the guide groove are equal in width, and the size of the wire groove, the winding groove and the guide groove is less than or equal to 2 mm.
9. The light weight electrode copper foil production apparatus of claim 1, wherein: the shaft end of the guide roller is installed on the power unit through a sliding block type bearing seat, the end face of the titanium roller and the surface of the shaft end close to the end face are both provided with insulating coatings, and the insulating coatings are made of polytetrafluoroethylene.
10. The light weight electrode copper foil production apparatus of claim 1, wherein: the insulating tape material is polytetrafluoroethylene, the insulating block material is PEEK, the silk groove outer end the body of layer body extension in insulating tape cover in the outer end edge of titanium roller.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114974903A (en) * | 2022-07-15 | 2022-08-30 | 梁计铣 | Production method of anode foil for aluminum electrolytic capacitor |
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