CN207572457U - Power battery and the ultracapacitor two-sided set position coating machine of wide cut pole piece - Google Patents

Abstract

The utility model discloses a kind of power battery and the ultracapacitor two-sided set position coating machine of wide cut pole piece, unwinding unit, electrion processing unit, front apparatus for coating, lower drying tunnel, reverse side apparatus for coating, upper drying tunnel, the rolling unit set gradually including control unit and along the metal foil direction of motion；Electrion processing unit includes the discharge electrode of high pressure babinet, negative pressure extractor fan, high-voltage power supply and several strips；On electrion roller, discharge electrode is arranged on the front end of high pressure box opening to the metal foil, and the circumference of electrion roller is axially arranged in parallel in along electrion roller；The rear end of high pressure babinet is provided with negative pressure air outlet, and air outlet is connected with external negative pressure extractor fan.The core technologies such as the utility model is based on electrion surface treatment, multilevel tensions control, segmentation cascades baking, material grain smoothes out, realize breadth 1.5m, operating rate 150m/min, the aluminium foil for covering position precision ± 0.3mm and copper foil positive and negative and are coated with.

Description

Power battery and the ultracapacitor two-sided set position coating machine of wide cut pole piece

Technical field

The utility model belongs to power battery and supercapacitor technologies field, and in particular to a kind of two-sided set position of pole piece applies Cloth machine.

Background technology

Power battery and ultracapacitor are widely used for field of new energy technologies, in power battery and ultracapacitor The pole piece of electrode is a critical component, it usually needs functional material is coated uniformly on metal foil (copper foil or aluminium foil) by coating machine On surface.Coiled base material is sent to application to printed by the principle of common coating machine similar to intaglio press by transmission mechanism Area coats functional material to the specified location of substrate surface, then by drying, winding etc., for the system of subsequent product Make.Thickness, uniformity, adhesion strength, breadth size, positional precision and the coating rate of wherein coated medium are that its measurement refers to Mark.

Chinese patent " lithium battery pole piece coating machine (201320299315.1) " discloses a kind of lithium battery pole piece coating machine, The machine is made of unreeling device for pole piece, tension-adjusting gear, slurry coats device, drying unit and wrap-up, existing for Problem is using conventional coating machine scheme, can not realize quick wide cut and the coating of two-sided set position, while functional material is in metal The adhesive ability of foil is not strong, influences the electrical parameter of pole piece.

Utility model content

The utility model proposes a kind of power batteries and the ultracapacitor two-sided set position coating machine of wide cut pole piece, will divide The conductive nano graphite and carbon coating grain dissipated is uniformly, fine and smooth ground, front reverse side position is corresponding, is disposably coated in aluminium foil or copper On foil, since there is provided substrate surface treatment links before coating, the adhesion strength between functional material and metal foil is improved, Contact resistance, while the scheme toasted using two-sided set position and gradient are reduced, realizes at a high speed with the coating of wide cut, improves Production efficiency.

The technical solution of the utility model is as follows：

Power battery and the ultracapacitor two-sided set position coating machine of wide cut pole piece, it is characterised in that：Including control unit With the unwinding unit, electrion processing unit, front apparatus for coating, lower drying tunnel, anti-set gradually along the metal foil direction of motion Face apparatus for coating, upper drying tunnel, rolling unit；

The more electrions processing that the electrion processing unit is included in the setting of metal foil surface to be treated is single Member, every unit include the discharge electrode of high pressure babinet, negative pressure extractor fan, high-voltage power supply and several strips；The gold Belong to foil on electrion roller, discharge electrode is arranged on the front end of high pressure box opening, and axially flat along electrion roller Row is arranged on the circumference of electrion roller；The discharge electrode keeps gap with metal foil, generates arcing to metal Foil so that metal foil surface generates pit and salient point；The rear end of the high pressure babinet is provided with negative pressure air outlet, air outlet with External negative pressure extractor fan is connected.

Above-mentioned power battery and ultracapacitor in the two-sided set position coating machine of wide cut pole piece, discharge electrode and metal foil it Between gap be 2-4mm.

Above-mentioned power battery and ultracapacitor are in the two-sided set position coating machine of wide cut pole piece, around every electrion roller 1-2 group electrion processing units are set；Every group of electrion processing unit then includes 2-6 discharge electrode.

Above-mentioned power battery and ultracapacitor are in the two-sided set position coating machine of wide cut pole piece, front apparatus for coating and reverse side Apparatus for coating includes intermediate correction unit, tension control units, coating and printing unit and squeezes spin coating unit；

With in the two-sided set position coating machine of wide cut pole piece, tension control units include master for above-mentioned power battery and ultracapacitor Dynamic roller, pendulum roller, gear wheel, pinion gear, potentiometer, swing rod, cylinder and control axis；Swing rod is arranged in vertical, and pendulum roller is set It puts in the lower end of swing rod, upper end and the gear wheel of swing rod connect firmly and along the axis swings of gear wheel；The piston rod of cylinder passes through work Dynamic hinge is fixed on the middle part of swing rod, stretches with the oscillating-piston bar of swing rod；Pinion gear is mounted on the spindle nose of potentiometer shaft, And it is meshed with gear wheel；

Base material is arranged on drive roll and pendulum roller, and drive roll is provided with power drive unit, control axis and power drive Device and potentiometer electrically connect.

Above-mentioned power battery and ultracapacitor are in the two-sided set position coating machine of wide cut pole piece, cylinder and air accumulator unicom, The pressure regulating valve of control axis and air accumulator electrically connects, and the parameter that control axis adjusts pressure regulating valve realizes air accumulator output pressure Adjusting.

Above-mentioned power battery and ultracapacitor include moving with spin coating unit in the two-sided set position coating machine of wide cut pole piece, is squeezed Power gear unit, pressure regulating unit and extruding smoothing roller, extruding smoothing roller overlays under the action of pressure regulating unit to be applied There is the substrate surface of material, and rotated under the driving of power transmission unit along the reverse direction of base material direction of advance.

With in the two-sided set position coating machine of wide cut pole piece, extruding spin coating unit further includes for above-mentioned power battery and ultracapacitor Swing arm, the swing arm include fixing end and swinging end, and fixing end is actively connected on by shaft in rack, squeeze smoothing roller and set It puts on the swinging end of swing arm, pressure regulating unit changes the swing angle of swing arm so that extruding smoothing roller, which overlays, is being coated with object The substrate surface of material.

Above-mentioned power battery and ultracapacitor are in the two-sided set position coating machine of wide cut pole piece, the power transmission unit Including being separately positioned on the first pulley of swing arm swinging end and the second belt wheel of swing arm fixing end, the first pulley and extruding Smoothing roller coaxially couples, and the second belt wheel is rotated by power transmission unit, drives first pulley synchronous with smoothing roller is squeezed Rotation.

Above-mentioned power battery and ultracapacitor are in the two-sided set position coating machine of wide cut pole piece, above and below upper drying tunnel and lower drying tunnel It is stacked, is arranged at intervals with live-roller in upper drying tunnel and lower drying tunnel, metal foil support is on live-roller, and live-roller is outside drying tunnel The actuating unit driving in portion is lower to drive metal foil to walk material.

The advantageous effects that the utility model has are as follows：

First, the utility model has carried out base material real-time online surface height before metal foil coats graphite or carbon particle Electroetching and roughening treatment are pressed, height is carried out to the positive and negative of base material on electrion roller using more high voltage power supply loadings The high-power multiple discharge processing of density large area, the nano-graphite or carbon particle with coating are formd on the positive and negative surface of metal foil Scale is suitable and equally distributed pit, therefore the carbon-coated aluminum foils or copper foil (ferric phosphate lithium cell positive and negative anodes material of coating machine production Material precoating；The positive and negative material precoating of lithium manganate battery；Electrode of super capacitor coating：Ternary material battery electrode coating) it can provide Splendid static conductive performance collects the micro-current of active goods and materials, so as to be greatly lowered between positive and negative pole material and afflux Contact resistance, and (adhesive ability improves 5 times to the adhesive ability that can improve between the two than conventional without discharging surface processing surface More than), the usage amount of adhesive can be reduced, and then the promotion for making the overall performance generation of battery huge, i.e. inhibition battery polarization, It reduces fuel factor, improve high rate performance；The internal resistance of cell is reduced, and significantly reduces the dynamic internal resistance amplification of cyclic process battery core, Consistency is improved, the cycle life of battery is significantly increased；The adhesion strength of active goods and materials and collector is improved, pole piece is reduced and is manufactured into This；Protect collector not by electrolytic corrosion；Improve the processing performance of LiFePO 4 material.

2nd, the utility model is provided with multigroup deviation correcting device in a device, wherein the first deviation correcting device is realized at electric discharge Base material integral error correcting and position before reason, it is ensured that the consistency of lateral position when whole picture metal foil high pressure is surface-treated；It is coated in front Before be provided with the second deviation correcting device, it is ensured that material lateral position is with being coated with the constant of roller position during the coating of front；In reverse side Third deviation correcting device is provided with before coating, it is ensured that the stability of material lateral position and coating roller position when reverse side is coated with； The 4th deviation correcting device is provided with before winding, it is ensured that the regularity of finished product end face after winding.

3rd, the utility model is provided with multigroup closed-loop tension control unit in a device, it is ensured that in entire coating process The tension of metal foil is kept constant to be stablized with lateral position, is ensured that in material positive and negative coating process and wrapup procedure Uniformity and consistency, finally ensure prepare painting carbon metal foil conductive characteristic consistency and stability.Tension Control unit use swing rod and angle of gear enlarged structure, the tension variation of metal foil in production can be measured amplification and it is anti- It is fed on drive roll, realizes stable closed-loop tension control；It simultaneously can also be by the pressure of adjusting control cylinder to required Tension is adjusted, and meets the demand of different occasions.

4th, the utility model in device layout using the dual oven structure of top-bottom layout, upper strata place weight compared with and body The larger positive and negative drying drying tunnel of product space, lower floor is unwinding device, more high-pressure discharging devices, feeds draft gear, front Apparatus for coating, reverse side apparatus for coating, wrap-up.Upper and lower heating drying tunnel is located at machine upper portion, other devices are located at lower part, are convenient for Artificial production operation and installation and debugging, good appearance are generous.

5th, the utility model employs gradient PID thermostats, and upper and lower drying tunnel is made of multiple temperature controlled regions, even Under conditions of continuous high-speed production, the temperature-gradient method and cooling of coated substrate are realized, metal foil is overcome and dashes forward the prominent cold belt of heat Wrinkle, it is ensured that product quality, and ensure that continuous high speed is uninterruptedly coated with production.

6th, the utility model increases after coating station squeezes spin coating device, and the smoothing roller using pressure adjustable is applying Negative direction, which squeezes, after cloth smoothes out spin coating, further increases the contact area of material grain and substrate, increases adhesive force, improve into Product apply the conductive characteristic of carbon metal foil.

7th, the utility model is surface-treated based on electrion, multilevel tensions control, segmentation cascade is toasted, multistage is rectified a deviation, Expect the core technologies such as grain floating, the utility model realizes breadth 1.5m, operating rate 150m/min, set position precision ± 0.3mm Aluminium foil and the coating of copper foil positive and negative, it is mixed for developing in the manufacture that can be widely used for power battery and super-capacitor pole piece Closing the rechargeable battery and wind-power electricity generation of power car and electric vehicle and the electric power storage rechargeable battery of solar power generation etc. has Important function.

Description of the drawings

Fig. 1 is the topology layout figure of the utility model coating machine；

Fig. 2 is the theory of constitution schematic diagram of the utility model coating machine；

Fig. 3 is the principle schematic of the utility model electrion processing unit；

Fig. 4 is the principle schematic of the utility model electrion processing unit；

Fig. 5 is the principle schematic of the utility model tenslator；

Fig. 6 is big pinion gear mesh schematic representation in the utility model tenslator；

Fig. 7 is principle of moment balance schematic diagram in the utility model tenslator；

Fig. 8 is the principle schematic that the utility model squeezes spin coating device；

In figure：1-unwinding unit；2-tension sensor；3-electrion processing unit；4-the first deviation correcting device； 5-metal foil；6-transfer roller；7-the first tension control units；8-front coating and printing unit；9-front apparatus for coating； 11-front vertical drying channel；The horizontal drying channel in 12-front；16-the second deviation correcting device；17-the second tension force list Member；18-reverse side coating and printing unit；19-reverse side apparatus for coating；21-reverse side vertical drying channel；The horizontal baking of 22-reverse side Dry passage；23-live-roller；27-third tension control units；28-third deviation correcting device；30-the four deviation correcting device；31— Electrion processing unit；41-rolling unit；42-floating roller unit；43-front spin coating device；44-reverse side spin coating device； 51-lower drying tunnel；52-upper drying tunnel；55-support base；56-steelframe；58-ground；701-drive roll；702-driving motor； 703-pinion gear；704-gear wheel；705-cylinder；706-piston rod；707-swing rod；708-pendulum roller；709-current potential Device；710-control axis；711-air accumulator；712-potentiometer shaft；715-upper transfer roller；716-lower transfer roller；81-outlet air Mouthful；82-high pressure babinet；83-discharge electrode；84-air-flow；85-electrion roller；86-electric arc；901-conducting medium object Material；902-coating roller；903-scraper；904-coining rubber roller；905-first pulley；906-extruding smoothing roller；907— Spin coating motor；908-belt；909-swing arm；911-worm gear；912-worm screw；913-handwheel；914-smoothing roller rotation side To；915-the second belt wheel；916-swing arm swaying direction；925-third belt wheel；920-fixing end；921-swinging end； 923-shaft.

Specific embodiment

Power battery and ultracapacitor are by scattered conductive nano graphite with the two-sided set position coating machine of wide cut pole piece Uniform with carbon coating grain, fine and smooth ground, front reverse side position is corresponding, is disposably coated on aluminium foil or copper foil, in moving for large capacity The high electric energy storage equipment such as power battery, super bulky capacitor, particularly requires the charging time short, electric energy storage capacity is big, cycle life Long power battery and ultracapacitor has tremendous skill upgrading.

As shown in Figure 1, the coating machine of the utility model includes being laid in lower drying tunnel 51, the upper drying tunnel 52 above frame structure With unwinding unit, rolling unit, electrion processing unit 3, front apparatus for coating 9 and the reverse side being arranged in below frame structure Apparatus for coating 19, frame structure include steelframe 56 and several support bases 55 for being supported on ground 58, and wherein unwinding unit, winding is single Member, electrion processing unit 3 are arranged on the space between support base 55.This space is had the advantage that heavier-weight The ground below frame is placed on the unwinding unit, rolling unit, electrion processing unit 3 for needing manual operation intervention On, and the lower drying tunnel 51 of lighter in weight, upper drying tunnel 52 are placed on above frame, and lower drying tunnel 51 and upper drying tunnel 52 are according to base material Move towards overlapping place, saved space, facilitated operation.In addition front apparatus for coating 9 and reverse side apparatus for coating 19 then depend on Support base 55 is fixed, and the base material between disparate modules and device rides in transition and fixation on support base 55, facilitates these Being fixedly connected between component and structure and frame becomes an entirety, and simplifies system structure.

As shown in Fig. 2, entire coating machine includes control unit and unreels list along what metal foil transmission direction was set gradually Member 1, electrion processing unit 3, front apparatus for coating 9, lower drying tunnel 51, reverse side apparatus for coating 19, upper drying tunnel 52 and winding are single Member 41 and several transfer rollers 6.

First, unwinding unit

Unreeling wheel acts on driving metal foil 5 in magnetic powder brake to be unfolded, and tension sensor 2 is provided in metal foil 5, Magnetic powder brake on force controller 2 and unreeling wheel forms closed-loop control, it is ensured that the tension of metal foil 5 is kept constant, and can be with It is manually set.The first deviation correcting device 4 is also provided at 1 position of unwinding unit of metal foil 5, is detected using ultrasonic wave electric eye, It realizes that metal foil 5 runs pilot process correction, ensures that lateral position is consistent when metal foil 5 is coated with.Wherein metal foil is maximum It unreels straight through for φ 700mm, the fixed single-station that can carry out upper and lower uncoiling unreels.

2nd, electrion processing unit

Electrion processing is one of main points that the utility model is different from traditional pole piece coating machine, traditional pole coating Machine is directly coated after base material generally is carried out cleaning treatment, is also had using sided corona treatment.Sided corona treatment is that its principle is profit With high-frequency high voltage in processed frosting corona discharge, and low temperature plasma is generated, frosting is made to generate trip Reacted from base and that polymer is made to crosslink surfaces is roughening and increase its wetability to polar solvent, these gas ions by It shocks by electricity and penetrates by its molecular structure of the surface breakdown of print body, and then processed surface molecular is aoxidized and polarized, from Son electric shock erosion surface, so that increasing the adhesive ability on stock surface, is mainly used at the surface of silicon rubber, plastic basis material Reason.

The utility model is provided with electrion processing links before printing process, the side punctured using electrion Method, on the one hand so that the grease gasification of metal foil surface, plays the role of air electricity that is clean, while being generated in discharge electrode From and the ionization ozone and oxygen atom effect that generate under, the surface of metal foil is etched and roughening treatment so that gold The positive and negative surface for belonging to foil forms suitable with the nano-graphite or carbon particle scale coated and equally distributed pit, coated media It is easily embedded in inside pit, and combines closely with substrate, improve contact area and adhesive force, reducing adhesive usage amount Under conditions of, the contact resistance between medium and substrate is reduced, the charge-discharge characteristic of battery can be improved.

As shown in Figure 3 and Figure 4, the electrion processing unit of the utility model is included in positive and negative two surfaces of metal foil and sets The more electrion processing units 31 put, every unit include high pressure babinet 82, negative pressure extractor fan, high-voltage power supply and several Discharge electrode 83, discharge electrode 83 are arranged in an axially parallel mode the circumference in electrion roller 85, and and metal along electrion roller 85 Foil 5 keeps certain spacing, and discharge electrode 83 generates electric arc 86 and acts on to metal foil 5.Discharge electrode 83 is arranged on high pressure babinet Front end inside 82, the rear end of high pressure babinet 82 are provided with negative pressure air outlet 81, air outlet 81 and external negative pressure extractor fan It is connected.1-2 group electrion processing units can be put around a usual electrion roller 85, every group of electrion processing is single It is first then including 2-6 discharge electrode 83.

The effect of etching and roughening treatment is formed on the surface of metal foil 5, it usually needs in order to meet in same height Pressure 85 surrounding of discharge roller sets more discharge electrodes 83, these discharge electrodes 83 can generate a large amount of heat in electrion, such as These heat of fruit cannot be discharged instantaneously, then metal foil surface can be caused to generate higher temperatures liter, and metal foil physical property becomes due to annealing Change.Generally for big heat heat dissipation using water-cooling pattern, i.e., several pipelines are processed inside electrion roller 85 and are passed through Cold water, the heat that electrion roller 85 generates are conducted by metal foil and metal high voltage discharge roller 85 and are taken away by water, this mode The heat of electrion can effectively be reduced, but power battery and ultracapacitor can not be met and apply carbon technological requirement, this be because To work as after discharge roller 64 is passed through ice water, roll body surface is because moisture condensation frosting can be pre-chilled in temperature difference roll body surface, and then leads to metal foil 5 Surface generate water mist, and apply in carbon technique using aqueous medium material, meet water performance change after the meeting, influence to apply cloth Amount.In addition it in the 85 inside water flowing of electrion roller, influences whether dynamic balancing when electrion roller 85 rotates, leads to rotating speed not Surely, the uniformity of coating is influenced, therefore can only be by the way of air-cooled.

In order to meet the air-cooled of big heat, the utility model uses powerful negative pressure extractor fan, negative pressure extractor fan It is connected on the air outlet 81 of the rear side of high pressure babinet 82, while the gap setting of electrode and metal foil is 2-4mm, preferably 3mm, only Have and just can guarantee that the air-flow 84 of big flow walks the torrid zone in this way, achieve the purpose that cooling, meanwhile, the air of big flow is in high pressure The lower ionization effect of effect is strengthened, and produce more ozone and oxygen atom, so as to which the surface strengthened to metal foil is lost Quarter and roughening treatment.In addition electrion roller 85 using aluminum alloy surface spraying oxidation-resistant ceramic be made, have high temperature resistant and Resistance to abrasion characteristic bears prolonged electrion and still keeps original transmission accuracy.The metal foil that electrion is disposed Need the coating link for entering next step as early as possible, after preventing metal foil especially aluminium foil exposed in air can Quick Oxidation into three Al 2 O influences inner resistance.

The utility model uses ceramic electrode of the length for 600mm-1200mm, and the mean power loaded on every electrode is The gap of 1-2kW, electric voltage frequency 10-20KHz, electrode and metal foil is 2-4mm, and metal foil walks to expect that rate is 50m/min- 180m/min, a diameter of 320mm of electrion roller set 4-12 electrode, entire coating machine on every electrion roller 85 The upper electrion roller 85 fifty-fifty there is provided positive and negative quantity.Wherein discharge power, electrode radical and delivery speed and spraying carbon The diameter of particle is related, and in the case of structure determination, different delivery speed and difference can be met by adjusting discharge power The spraying requirement of size carbon particle.

By before and after HIGH PRESSURE TREATMENT aluminium foil surface brush dyne water gaging surface tension, micro- sem observation material surface with And measure the internal resistance of product after painting carbon, the results showed that：

(1) by electrion, treated that aluminium foil observes that its surface produces average dimension about under the microscope The pit and salient point of 50nm -500nm, it is substantially suitable with the carbon particle scale of coating, and it is loaded onto the electricity of electrode by changing Pressure, thus it is possible to vary the scale of pit and salient point, to be suitable for the carbon particle material of different-diameter.

The mechanism that this pit and salient point generate not yet learns that only conjecture is that the heat generated due to high-voltage arc is burnt at present Under ozone and oxygen atom effect that the pit or oxygen ionization that erosion, plasma attack generate generate so that original aluminium foil The alundum (Al2O3) of surface compact is reduced into no longer fine and close aluminium, and then is rendered as bowl configurations under the microscope, it is also possible to It is that two kinds of effects be combined with each other.

(2) by brushing aluminium foil and the aluminium foil by electrion processing that dyne water gaging handle without electrion, Surface tension is improved by average 10gf to 50gf, improves 5 times.

(3) using same process carbon-coated aluminum foils product made of identical equipment, by electrion handle product internal resistance It is decreased to more than the 1/3 of the product handled without electrion, internal resistance is close to zero under limiting case, and the charge and discharge of battery are special Property is significantly increased.

(4) using same process carbon-coated aluminum foils product made of identical equipment and identical electrion treatment process, point It is not coated with the granularity D50 of nano-graphite and carbon nanotube, wherein nano graphite powder<400nm, and the caliber of carbon nanotube about 2- 5nm, length are 10-20 μm, the results showed that, the internal resistance of nano-graphite product will be much smaller than carbon nanotube, analyze the reason is that, receiving The pit of rice graphite particle and aluminium foil surface is basically identical, can be very good to be embedded in the inside of pit, forms carbon and substrate aluminium Close contact, effectively reduce internal resistance；Although and carbon nanotube average particle size be hundred nanometers, due to being had exceeded in length direction The scale of pit, caliber are much smaller than the scale of pit again, are in close contact it is difficult to be embedded in and formed inside the pit of aluminium foil surface, therefore The internal resistance of product is relatively large.

3rd, apparatus for coating

Apparatus for coating includes intermediate correction unit, tension control units, coating and printing unit and squeezes spin coating unit, is applying It needs to carry out intermediate correction and tension force before cloth printing element.

(1) intermediate correction unit

Material needs to carry out intermediate correction and tension force before coating and printing unit.Centre correction unit is using ultrasound Wave electric eye detector, metal foil enter coating before double roller among rectify a deviation, ensure material enter painting process front position perseverance It is fixed, and ensure that metal foil is wrinkle resistant during correction.Wherein the first deviation correcting device realizes the base material entirety before discharge treatment Correction, it is ensured that the consistency of lateral position when whole picture metal foil high pressure is surface-treated；There is provided second before the coating of front to entangle Deflection device, it is ensured that material lateral position is with being coated with the constant of roller position during the coating of front；The is provided with before reverse side coating Three deviation correcting devices, it is ensured that the stability of material lateral position and coating roller position when reverse side is coated with；It is set before winding 4th deviation correcting device, it is ensured that the regularity of finished product end face after winding.According to the required precision that metal foil transmits, can set more The intermediate correction unit of group.

(2) tension control units

The purpose of tension control units is to realize that the tension of metal foil in entire coating process is kept constant and lateral position Stablize, particularly in positive and negative coating process, the printing coating only under constant-tension could ensure metal foil surface printing The uniformity and consistency of material finally ensure the consistency and stability of painting carbon metal foil conductive characteristic prepared.

The utility model is provided with multigroup tension control units in link is coated with, wherein the first tension control units are set Before charging traction with front coating, it is ensured that material tension is constant during the coating of front stablizes with lateral position；Second tension Control unit is arranged on before discharging traction, it is ensured that the stabilization and lateral position stability of reverse side coating tension.Additionally exist Third tension control units are provided with before winding, it is ensured that the tension stability of finished product after winding.According to the transmission of metal foil Required precision can also set similar tension control units in unreeling, feeding traction link and other intermediate links, it is ensured that Constant tension and base material lateral position in whole process are stablized.

As illustrated in figs. 5-7, the tension control units of the utility model include drive roll 701, gear wheel 704, swing rod 707, Put roller 708, cylinder 705, potentiometer 709 and control axis 710.When usually working, metal foil 5 is along drive roll 701, upper transfer roller 715th, the signal direction sequential advancement of roller 708 and lower transfer roller 716 is put, drive roll 701 drives or by motor 702 by motor Drive roll 701 is driven to rotate by synchronous belt.Core component is a swing rod 707 vertically, and pendulum roller 708 is then fixed on The lower end of swing rod 707.The upper end of swing rod 707 is fixed together with gear wheel 704, and can be along the axis swing of gear wheel 704；Gas Cylinder 705 is fixed on stent, and the piston rod 706 of cylinder 705 is fixed on the middle part of swing rod 707 by hinges, with swing rod 707 oscillating-piston bar 706 is flexible.

Potentiometer 709 is installed, the spindle nose of potentiometer shaft 712 is equipped with pinion gear on the corresponding position of gear wheel 704 703, gear wheel 704 and 703 parameter of pinion gear are matched and are intermeshed, and when swing rod 707 is swung, gear wheel 704 are driven to rotate One smaller angle, while pinion gear 703 is driven to rotate a larger angle, cause the resistance variations of potentiometer 709.

The effect of pinion gear 703, gear wheel 704 and swing rod 707 be an angle enlargement and measure effect, swing rod 707 Minor change angle, by the amplification of big pinion gear, be reflected in the resistance variations of potentiometer 709.

As shown in fig. 7, in actual work, the tension of metal foil can act on to pendulum roller 708 formed pulling force F2 to putting roller and F3, and cylinder can generate swing rod 707 when negative pressure works F1 pulling force, wherein F1 and F2, F3 direction are opposite.In equilibrium state When, swing rod 707 vertically downward when, at this moment F1 and F2+F3 holding torques balance records the resistance parameter of potentiometer 709 as R, one The tension of denier metal foil 5 becomes larger suddenly, i.e., F2+F3 becomes larger, then the equalising torque on swing rod 707 is destroyed, and swing rod 707 is inverse around the shaft Hour hands rotate, and deviate upright position, while after the angle enlargement by big pinion gear, the resistance R variations of potentiometer 709, it is assumed that Resistance R becomes larger, then control axis 710 is according to the input electrical parameter of the increase amplitude regulation motor 702 of resistance R so that motor 702 Output speed increase, drive roll 701 consequently also rotating speed increase, be released into pendulum roller in more metal foils 5 of increased moment On 708, then putting roller 708 can overcome the effect of F2 and F3 to restore to equilbrium position, while potentiometer 709 under the pulling force effect of F1 Resistance revert to R, control axis 710 can the output speed of driving motor 702 restore to conventional parameter, so as to keep metal foil Constant tension.Vice versa, that is to say, that after the variation of tension is acted on by the angle enlargement of swing rod and size dimension, instead The variation of potentiometer resistance is fed to, is further compensated by adjusting the rotating speed of driving motor so that the tension of metal foil begins It keeps constant eventually.

It should be noted that the cylinder 705 of the utility model is connected with air accumulator 711, the output pressure of air accumulator 711 F1 can change the change of the parameter realization pressure of pressure regulating valve by control axis 710, meet the needs of different metal foil tension. Further, since the limited angle that gear wheel 704 rotates, can also use half gear structure；Cylinder 705 uses low rubbing cylinder, Resistance can be neglected in piston movement.Entire coating machine is provided with several groups of tension control mechanisms, is respectively used to before being coated with, before winding Etc. the tension force of multiple links.

(3) coating and printing unit

As shown in figure 8, the coating and printing unit of the utility model is mainly uniform by gravure printing roller by graphite or carbon particle It is coated on two surfaces of metal foil, by the way of intaglio plate coating, is coated with the printing that intaglio plate is carved on the roll body of roller 902 Pattern, coating roller 902 is immersed in the conducting medium material 901 of liquid, during operating by conducting medium material sticks on roll body, Hang extra material through scraper 903, with coining rubber roller 904 by 901 even spread of conducting medium material on metal foil.

Rubber roller 904 is imprinted using ethylene propylene diene rubber, 75~80 ° of Shao Er hardness, roller structure is swing arm structure, is put There is the long compensation deflector roll of material on arm simultaneously so that smaller in the length variation of motion process material.Scraper 903 has enough thickness and width Degree, is pressurizeed using Pneumatic floating, and adjustable with three-dimensional.Conducting medium material 901 for graphite, carbon particle, carbon nanotube, Graphene etc. mixes the sticky liquid material formed after bonding agent and water.

(4) spin coating unit is squeezed

The utility model, which is provided with, squeezes spin coating unit, and medium is more uniform after the purpose of spin coating is to ensure that coating, passes through Extrusion process, medium material grain are pressed into the pit of material surface, and adhesive force is stronger.As shown in Fig. 2, the utility model is in coating machine Positive spin coating device 43 and reverse side spin coating device 44 are increased respectively after positive and negative is coated with, and in material grain, there are no dryings In the case of pressurize smooth out, further increase material grain and substrate contact area, reduce the internal resistance of finished product, improve product matter Amount.

As shown in figure 8, the core that the utility model squeezes spin coating device is the extruding smoothing roller 906 of a high-speed rotation, And power transmission unit and pressure regulating unit.It squeezes smoothing roller 906 to be mounted in swing arm 909, be overlayed with certain pressure On 5 surface of metal foil of firm coated conducting medium material, and under power drive along opposite with 5 direction of advance of metal foil Direction rotates.

Power transmission unit includes spin coating motor 907, first pulley 905, the second belt wheel 915, third belt wheel 925 and corresponding Belt 908, wherein squeeze smoothing roller 906 be arranged on the swinging end 921 of swing arm 909, the fixing end 920 of swing arm passes through shaft 923 are actively connected in rack, and the spin coating motor 907 being fixed in rack drives third belt wheel 925 to rotate, and is driven by belt Second belt pulley 915 and the first belt pulley 905 rotate, the first belt pulley 905 with squeeze the coaxially connection and synchronous turn of smoothing roller 906 Dynamic, wherein spin coating motor 907 uses frequency control motor, can adjust rotating speed according to material difference.

Pressure regulating unit includes worm gear 911 and worm screw 912, wherein worm gear 911, the first belt pulley 905 and extruding spin coating Roller 906 is arranged in swing arm 909, and worm gear 911 connects firmly the fixing end 920 in swing arm 909, and the driving rotated in worm screw 912 Under can with around the shaft 923 rotation.Worm screw 912 is fixed in rack, and the front end of worm screw is provided with handwheel 913, rotates handwheel 913, Worm screw 912 rotates therewith, and drives worm gear 911 around axis rotation so that the swing arm swaying direction 916 along figure of swing arm 909 is swung At this moment certain angle squeezes smoothing roller 906 and then overlays on the surface of metal foil 5, and pressure can be adjusted by handwheel 913 Section, the self-locking pushing power of worm and gear is kept constant again after adjusting.

Since in this way, smoothing roller 906 is squeezed and has overlayed on 5 surface of metal foil and run at high speed, and spin coating with certain pressure Roller rotation direction 914 is with 5 direction of advance of metal foil on the contrary, therefore being smoothed out coated material and being compacted handle in electrion In the pit arrived, the contact area of material grain and substrate is further increased, reduces the internal resistance for applying carbon metal foil product.

It squeezes smoothing roller 906 and uses 45# steel modifier treatment rear surface chromium plating, coating is sufficiently thick, and maximum line velocity reaches 150m/min meets the needs of different clothes, it can be achieved that the adjusting of pressure and rotating speed.

The painting process of the utility model includes obverse and reverse, is coated with principle and structural parameters are consistent.

4th, drying tunnel

In order to realize spraying after product rapid shaping, need to carry out baking processing to the product after coating.Drying tunnel uses The concrete scheme of gradient increased temperature and gradient cooling, every drying tunnel are made of more piece baking oven, real under conditions of continuous high speed production Show gradient increased temperature and the cooling of coated substrate, overcome metal foil and dash forward the wrinkle of the prominent cold belt of heat, it is ensured that product quality, And it ensure that continuous high speed is uninterruptedly coated with production.

As illustrated in fig. 1 and 2, drying tunnel is divided into drying tunnel 52 and lower drying tunnel 51.Lower drying tunnel 51 is for the first of front coated product Step drying, upper drying tunnel 52 is then for front coated product and reverse side coated product thorough drying.

Lower drying tunnel 51 includes the horizontal drying channel 12 of front vertical drying channel 11 and several fronts, and every drying channel is long About 2-5 meters of degree, it is real under conditions of coating machine continuous production by the way of the blowing of electric heating exchanger combination high pressure positive blower Temperature-gradient method and cooling of the metal foil from 40 DEG C of -120 DEG C of -200 DEG C -100 DEG C-room temperature are showed.Temperature control uses PID (ratios-product Point-derivative controller) automatic temperature-controlled mode, it is ensured that accuracy of temperature control reaches 1 DEG C.

Same principle, upper drying tunnel 52 then include reverse side vertical drying channel 21 and the horizontal drying channel 22 of several reverse side, often About 2-5 meters of drying channel length, by the way of the blowing of electric heating exchanger combination high pressure positive blower, in coating machine continuous production Under conditions of, realize temperature-gradient method and cooling of the metal foil 5 from 40 DEG C -100 DEG C -150-200 DEG C -100 DEG C-room temperature.Temperature control In a manner that PID (proportional-integral derivative controller) is automatic temperature-controlled, it is ensured that accuracy of temperature control reaches 1 DEG C.

The mode of temperature control under conditions of continuous high speed production, overcomes the prominent cold belt of the prominent heat of metal foil 5 step by step above Wrinkle, it is ensured that product quality, and ensure that continuous high speed is uninterruptedly coated with production.

Traditional double-face spray painting drying tunnel is generally suspended in drying tunnel due to meeting dual oven simultaneously using metal foil 5 Both ends avoid live-roller from contacting some coating surface when being made, and the tension of metal foil is inconsistent when this mode causes to toast, Coating material baking after-contraction is inconsistent and quality occur irregular.The utility model overcomes disadvantage mentioned above, after coating Metal foil whole tension support in drying tunnel.Either upper drying tunnel 52 or the lower all built-in live-roller of drying tunnel 51, by synchronous belt It is connected with external impetus and is driven, bearing is placed in outside baking oven.Drying tunnel 51 is wherein descended to be only used for preliminary baking when front is coated with It is roasting, it is ensured that carbon particle bonding is substantially firm, and live-roller is supported on reverse side during baking, and front coating will not be had an impact；Upper baking Then for front coated product and reverse side coated product thorough drying, live-roller, which is supported on, during baking has already passed through just in road 52 Walk the front of baking.The live-roller of drying tunnel is mirror roller, and steel surface chromium plating is simultaneously processed, finish 0.8, mirror by super grinding Face roller high precision machining, frictional force are small, can reduce wrinkle to avoid damage of the roll body surface to material in transmission, meet accurate The requirement of transmission.It is supported during baking using mirror roller, avoids the tension uneven influence to product when toasting that suspends.High temperature is dried It is wound with reference to cooling, it is ensured that the consistency of product, while drying tunnel is superposed up and down, can greatly save space, reduces manufacture Cost.

5th, rolling unit

The traction of rolling unit 41 is using a pair of of steel rider and rubber roller to pressure relative rolling type traction, steel roller faces chromium plating.Rubber roller It presses and detaches using pneumatic control, commutated by solenoid directional control valve, the pressure of both ends cylinder can show and adjust.It unreels Traction electric machine uses floating roller tension force, and cornerite of the metal foil in floating roller is very big, and floating roller uses surface anodization aluminium roller.Mesh The preceding a diameter of φ 750mm of maximum rewinding accomplished.

The coating process flow of the utility model is as follows：

Metal foil uncoiling → integral error correcting and position → electrion processing → charging traction → centre correction → front coating → even Glue floating → drying → cooling → centre correction → centre correction → reverse side coating → spin coating floating → drying → cooling → centre Correction → winding traction → winding.

The major parameter of high-speed broad-width coating machine is as follows at present：

(1) coating set type arrangement, whole type top-bottom layout, comprising two printing stations, one unreels station, one Wind station；

(2) drying tunnel is divided into baking oven and lower baking oven, and heat drying method converts Hot-blast Heating for electric energy；

(3) base material is adapted to：The duralumin foil of 8um-40um, the copper foil of 8um-15um and other metal foils；

(4) highest delivery speed：180m/min (is determined) according to coating and material；

(5) alignment precision：Positive and negative laterally covers position：±0.3mm；Positive and negative longitudinal sleeve position：±0.3mm；

(6) maximum gauge is unreeled：φ700mm；Wind maximum gauge：φ750mm；Base material maximum width 1.5m；

(7) coating type：Solvent type or water paint.

The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art For art personnel, under the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (10)

1. power battery and the ultracapacitor two-sided set position coating machine of wide cut pole piece, it is characterised in that：Including control unit and The unwinding unit (1) that is set gradually along metal foil (5) direction of motion, electrion processing unit (3), front apparatus for coating (9), Lower drying tunnel (51), reverse side apparatus for coating (19), upper drying tunnel (52), rolling unit (41)；

The electrion processing unit (3) is included in the more electrions processing of metal foil (5) surface to be treated setting Unit (31), every unit include the discharge electrode of high pressure babinet (82), negative pressure extractor fan, high-voltage power supply and several strips (83)；For the metal foil (5) on electrion roller (85), discharge electrode (83) is arranged on high pressure babinet (82) opening Front end, and be arranged in an axially parallel mode the circumference in electrion roller (85) along electrion roller (85)；The discharge electrode (83) gap is kept with metal foil (5), generates electric arc (86) and act on to metal foil (5) so that metal foil surface generates pit And salient point；The rear end of the high pressure babinet (82) is provided with negative pressure air outlet (81), and air outlet (81) is taken out with external negative pressure Wind apparatus is connected.

2. power battery according to claim 1 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：Gap of the discharge electrode (83) between metal foil is 2-4mm.

3. power battery according to claim 1 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：Setting 1-2 group electrion processing units around every electrion roller (85)；Every group of electrion processing unit then wraps Include 2-6 discharge electrode (83).

4. power battery according to claim 1 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：The front apparatus for coating (9) and reverse side apparatus for coating (19) includes centre correction unit, tension control units, painting Cloth printing element and extruding spin coating unit.

5. power battery according to claim 4 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：The tension control units include drive roll (701), pendulum roller (708), gear wheel (704), pinion gear (703), current potential Device (709), swing rod (707), cylinder (705) and control axis (710)；Swing rod (707) is arranged in vertical, pendulum roller (708) The lower end of swing rod (707) is arranged on, upper end and the gear wheel (704) of swing rod (707) are connected firmly and put along the axle center of gear wheel (704) It is dynamic；The piston rod (706) of cylinder (705) is fixed on the middle part of swing rod (707) by hinges, with the pendulum of swing rod (707) Piston bar (706) is flexible；Pinion gear (703) and is mutually nibbled mounted on the spindle nose of potentiometer shaft (712) with gear wheel (704) It closes；

Metal foil (5) is arranged on drive roll (701) and pendulum roller (708), and drive roll (701) is provided with power drive unit, control Maincenter (710) processed electrically connects with power drive unit and potentiometer (709).

6. power battery according to claim 5 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：Cylinder (705) and air accumulator (711) unicom, control axis (710) and the pressure regulating valve of air accumulator (711) electrically connect, and control Maincenter (710) processed adjusts the adjusting of parameter realization air accumulator (711) output pressure of pressure regulating valve.

7. power battery according to claim 4 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：The extruding spin coating unit includes power transmission unit, pressure regulating unit and squeezes smoothing roller (906), squeezes even Rubber roller (906) is overlayed under the action of pressure regulating unit in the substrate surface for being coated with material, and in the drive of power transmission unit It is rotated under dynamic along the reverse direction of base material direction of advance.

8. power battery according to claim 7 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：The extruding spin coating unit further includes swing arm (909), and the swing arm (909) includes fixing end (920) and swinging end (921), fixing end (920) is actively connected on by shaft (923) in rack, is squeezed smoothing roller (906) and is arranged on swing arm (909) Swinging end (921) on, pressure regulating unit change swing arm (909) swing angle so that squeeze smoothing roller (906) overlay It is coated with the substrate surface of material.

9. power battery according to claim 7 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：The power transmission unit includes the first pulley (905) for being separately positioned on swing arm (909) swinging end (921) and pendulum The second belt wheel (915) of arm (909) fixing end (920), the first pulley (905) and extruding smoothing roller (906) coaxially join It connects, the second belt wheel (915) is rotated by power transmission unit, is driven first pulley (905) and is squeezed smoothing roller (906) together Step rotation.

10. power battery according to claim 1 and the ultracapacitor two-sided set position coating machine of wide cut pole piece, feature It is：Biography is arranged at intervals in upper drying tunnel (52) and lower drying tunnel (51) setting stacked on top of one another, upper drying tunnel (52) and lower drying tunnel (51) Dynamic roller (23), metal foil support is on live-roller (23), actuating unit driving lower band of the live-roller (23) outside drying tunnel Dynamic metal foil (5) walks material.