292results about "Winding capacitor machines" patented technology

A method for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The invention discloses a solid-state capacitor and a preparation method thereof, and the preparation method comprises the following steps: (1) core package winding: interposing electrolytic paper between an anode foil and a cathode foil, and winding to form a core package; (2) a repairing step: immersing the core package into a formation liquid for repairing treatment; (3) a drying step: carrying out drying treatment on the core package in the step (2); (4) an impregnation step: immersing the core package in the step (3) into a first impregnation liquid for impregnation treatment; performing drying; immersing into a second impregnation liquid for impregnation treatment, and drying; (5) a polymerization step: immersing the core cladding in the step (4) into an oxidation liquid for polymerization; and (6) assembling, girdling and aging treatment.

A production apparatus of an electrode active material layer, comprising: a support unit; a feeding unit feeding prescribed granulated particles on or above the support unit; a first conveying unit; a squeegee unit; a first stock guide; a second stock guide; a first position measurement unit; a second position measurement unit; a rolling unit; a first gap adjustment unit; a second gap adjustment unit; and a control unit. The first position measurement unit measures a distance D1. The second position measurement unit measures a distance D2. The control unit causes the first gap adjustment unit to adjust a gap G1 based on a difference between the gap G1 obtained based on the distance D1 and a gap threshold T1 and causes the second gap adjustment unit to adjust a gap G2 based on a difference between the gap G2 obtained based on the distance D2 and a gap threshold T2.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The invention relates to the technical field of aluminum foil winding, and specifically to an aluminum foil winding device for electrolytic capacitors and a method thereof, comprising a winding base, a winding driver is fixedly installed on one end of the upper surface of the winding base, a main winding roller is rotatably installed on one end of the winding driver, a supporting shaft frame matching the main winding roller is rotatably connected to one end of the upper surface of the winding base, a top cover is fixedly connected to one end of the winding driver, a film-driving assembly is rotatably installed between the winding driver and the mounting frame, and the film-driving assembly comprises a rotating drum rotatably installed between the winding driver and the mounting frame, and a plurality of distribution films obliquely and symmetrically connected to the outer surface of the rotating drum, which is beneficial to multiple compaction of the winding material when the aluminum foil is wound, improves the compactness, cooperates with impurity cleaning, prevents bubbles and wrinkles from appearing during winding, and improves the overall forming quality of the winding.

A system for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The invention discloses a universal low-impedance electrolyte for a high-voltage aluminum electrolytic capacitor and the high-voltage aluminum electrolytic capacitor in the technical field of electrolytes for capacitors, the universal low-impedance electrolyte is suitable for high-voltage lead type, ox horn type and bolt type aluminum electrolytic capacitors, and the universal low-impedance electrolyte comprises the following components in percentage by mass: 60-80% of a solvent, 10-18% of a main solute, 2-6% of a solute improver and 0.5-4% of a special solute, 5-15 wt% of a PVA and SiO2 aerosol compound, and 2-7 wt% of other functional additives; according to the universal low-impedance electrolyte for the high-voltage aluminum electrolytic capacitor and the high-voltage aluminum electrolytic capacitor, the conductivity and the sparking voltage of the electrolyte are properly improved, so that the internal resistance and the breakdown risk of the capacitor are reduced, various electrolytes are replaced, the production efficiency is greatly improved, and the production cost is reduced; the method can be applied to manufacturing of 450V and below lead, ox horn and bolt aluminum electrolytic capacitors, the production line impregnation efficiency is greatly improved, and the production cost is saved.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll.

The invention relates to the technical field of data processing, in particular to an equipment abnormity monitoring method for capacitor component production, which comprises the following steps: acquiring the temperature and current of a capacitor core winding machine at each moment, selecting a target moment, and calculating the temperature and current of the capacitor core winding machine according to the temperature and current difference between the target moment and a plurality of historical moments. Determining a temperature deviation degree and a current deviation degree of the target moment, then calculating a first abnormal degree of the target moment, obtaining first abnormal degrees of a plurality of historical moments of the target moment, and correcting the first abnormal degree of the target moment into a second abnormal degree according to a change trend of the first abnormal degree; according to the method, the second abnormal degree at the target moment is compared with the preset threshold value, abnormity monitoring of the capacitor core winding machine is achieved, the interaction among the parameters of the capacitor core winding machine and the dynamic change trend are fully considered, and the accuracy and reliability of abnormity monitoring are improved.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. The method may include providing a multi-roll calender system comprising a first calender roll, a second calender roll; rotating the first calendering roll at a first rotational velocity; rotating the second calendering roll at a second rotational velocity; providing a first dry electrode material to a first nip between the first calendering roll and the second calendering roll to form a dry electrode film. The second rotational velocity may be greater than the first rotational velocity.

The invention discloses a special aluminum fixing capacitor for an electronic detonator with ultralow electric leakage characteristic and a preparation method thereof, the capacitor comprises a positive foil electrode, a negative foil electrode, an aluminum foil or an aluminum alloy foil coated with an oxide film on the surface, electrolytic paper and an electrolyte, and the electrolyte can be a phosphate-based electrolyte, a borate-based electrolyte or an organic electrolyte containing high-conductivity salt, and an additive, the preparation method comprises the following steps: slitting positive and negative foils and electrolytic paper, winding the positive and negative foils and the electrolytic paper to form a concentric circle, forming a repair oxide film, dipping a conductive polymer material, baking and polymerizing to form a conductive film, injecting a pouring sealant into an aluminum shell, and carrying out heat treatment to obtain the conductive aluminum shell. The formation liquid is ammonium dihydrogen phosphate, ammonium adipate or boric acid aqueous solution, and the pouring sealant is epoxy resin or polyurethane; the capacitor has an ultra-low electric leakage characteristic, is suitable for being used as a power supply energy storage element in an electronic detonator system, stabilizes power supply output and inhibits an electric leakage phenomenon.

The invention discloses a high-performance electrode foil and a sintering process thereof. The sintering process comprises the following steps: carrying out hydration treatment on an aluminum-containing interlayer foil to obtain a hydrated interlayer foil; winding the base layer foil and the hydrated interlayer foil at intervals to form a foil roll; and sintering the foil roll. The adopted interlayer foil is the aluminum-containing interlayer foil, and when the aluminum-containing interlayer foil is subjected to hydration treatment, hydrated aluminum hydroxide can be formed on the surface of the aluminum-containing interlayer foil; when sintering is carried out, on one hand, hydrated aluminum hydroxide on the surface of the hydrated interlayer foil can be decomposed, generated water can react with aluminum powder on the surface of the base layer foil at a high temperature, aluminum oxide and hydrogen are generated, and therefore the purposes of promoting the aluminum powder on the surface of the base layer foil to generate aluminum oxide and promoting the sintering process are achieved, and aluminum powder oxidation is more uniform; and on the other hand, generation and decomposition of aluminum hydroxide can cause a large number of pores to be generated in the interlayer foil, so that the adhesive gasified from the base layer foil is better adsorbed, adhesive discharging is more complete, and improvement of the performance of the electrode foil is facilitated.

A production apparatus of an electrode active material layer, comprising: a support unit; a feeding unit feeding prescribed granulated particles on or above the support unit; a first conveying unit; a squeegee device; and a rolling unit. The squeegee device includes a cylindrical squeegee roll, stock guides being in a plate shape and having a shaft hole, a rotation shaft inserted into the stock guide and penetrating the squeegee roll in an axial direction of the squeegee roll, and a fixing member restricting movement of the stock guides in an axial direction of the rotation shaft. The stock guides and the squeegee roll are alternately disposed along the axial direction of the rotation shaft. The stock guides are disposed at both ends of the squeegee roll in the axial direction. The squeegee roll is fixed to the rotation shaft. The rotation shaft is freely rotatable to the stock guides.

The invention relates to the technical field of capacitors, in particular to a high-thermal-conductivity thin-film capacitor of a graphite material and a preparation method thereof, and the preparation method comprises the following steps: spraying a graphene dispersion liquid on the surface of a thin film, judging the conductive state of a coating, and adjusting winding parameters to control spraying equipment to move; judging whether the graphene layer is uniformly distributed or not, and checking the concentration of the dispersion liquid, or checking the actual layer thickness; the dispersion state of the graphene dispersion liquid is judged, the reason for uneven distribution of the graphene layer is determined, and the ultrasonic treatment duration or spraying parameters are adjusted; spraying parameters are adjusted according to whether the actual layer thickness meets the curing requirement or not, or drying and curing are conducted; determining the curing degree of the graphene coating, winding the film roll material into a capacitor core package, or carrying out thermal stability test on the capacitor core package, calling back the judgment standard of the conductive state of the coating and the distribution of the graphene layer, and adjusting the initial detection length; according to the invention, the working temperature of the capacitor is reduced by coating the high-thermal-conductivity graphene material.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. 62385256

The invention relates to the technical field of power electronic components, and discloses a fast charge-discharge aluminum electrolytic capacitor and a preparation method thereof. The fast charge and discharge aluminum electrolytic capacitor comprises a high-purity aluminum foil subjected to aluminum chloride-hydrochloric acid etching and oxalic acid-tartaric acid oxidation treatment, a porous electrolyte layer with the thickness of 0.015-0.020 mm, a composite organic-inorganic electrolyte and an aluminum shell packaging structure, the preparation method comprises the steps of aluminum foil processing, electrolyte cutting, winding and assembling, vacuum infusion under-0.09 to-0.095 MPa, staged aging charging under the condition of 70-90 DEG C, and finally packaging and forming. According to the method, a compact oxidation film is formed through anodic oxidation, the proportion of gamma-butyrolactone in the electrolyte is optimized, the staged voltage aging and vacuum infusion process is implemented, and the fast charging performance, high-temperature stability and overall reliability of the aluminum electrolytic capacitor are synergistically improved from the material level and the process level.

The utility model discloses a capacitor winding device based on a tension adjusting and deviation rectifying function, which relates to the technical field of capacitor manufacture and comprises a bearing substrate, a tension adjusting base is arranged on one side of the front end of the bearing substrate, and a tension adjusting device is arranged on the tension adjusting base. A winding mechanism is mounted on the other side of the front end of the bearing base plate, a driving mechanism is mounted on the other side of the rear end of the bearing base plate, the output end of the driving mechanism is in transmission connection with the winding mechanism, and the tension adjusting base comprises a bearing table, a first mounting plate, a second mounting plate, a first speed reducer and a servo motor; the first mounting plate and the second mounting plate are mounted on the two sides of the bearing table correspondingly, mounting holes are formed in the rear end of the first mounting plate and the rear end of the second mounting plate correspondingly and used for being connected with the bearing base plate through bolts, and the problem that in the using process of an existing device, shutdown operation is needed for deviation correction, and the machining efficiency is affected is solved.

To provide a winding device that can more reliably prevent collision of tabs with an outer peripheral surface of a transfer roller, and can effectively prevent breaking of the tabs.SOLUTION: A winding device comprises a rotatable winding core, and electrode sheets 4, 5 having tabs 4b, 5b are supplied to the winding core while being accelerated or decelerated. The winding device includes a rotatable transfer roller 711, an outer peripheral surface of which is covered by the electrode sheets 4, 5, and an upstream blow device 715 that can blow air. The upstream blow device 715 is provided at an immediately upstream position of the transfer roller 711 along a conveyance direction of the electrode sheets 4, 5, and can blow air directed from the root toward the leading end of the tabs 4b, 5b, simultaneously to both the front side and the rear side of the tabs 4b, 5b. The air blown from the upstream blow device 715 prevents the shaking motion of the tabs 4b, 5b and prevents collision of the tabs 4b, 5b with the transfer roller 711.SELECTED DRAWING: Figure 8

The invention discloses an aluminum electrolytic capacitor special for a block chain computer and a preparation method of the aluminum electrolytic capacitor, and the preparation method comprises the following steps: S1, a positive guide pin and a negative guide pin are respectively riveted on an anode foil and a cathode foil, and a formation liquid used by the anode foil is composed of boric acid, citric acid mixed acid and maleic acid; s2, interposing electrolytic paper between the anode foil and the cathode foil, and winding to form a core package; s3, carrying out heating and impregnation on the wound core package in an electrolyte; s4, assembling the core package, the aluminum shell and the sealing rubber plug; s5, an aging step; the electrolyte consists of the following components in percentage by mass: 43-60% of a solvent, 30-42% of a solute, 3-10% of an additive and 1-5% of a surfactant, the surfactant is composed of ammonium chromate, alkyl phosphate, a silicic acid compound and polyacrylamide. The aluminum electrolytic capacitor prepared by the method provided by the invention can keep good performance and long service life in a high-temperature and high-pressure working environment, and is very suitable for a block chain computer.

The invention provides a high-voltage capacitor core rolling method and rolling equipment, and the method comprises the steps: employing the rolling equipment to prepare a test paper sample, the rolling equipment comprises at least two material shafts, and the material shafts are used for placing metallized films; in N layers of stacked metallized films disassembled from the test paper sample, at least one layer of metallized film is selected as a reference film, metallized films except the reference film are selected as alignment films, and each metallized film comprises a base film and metal evaporation layers which are arranged on the surface of one side of the base film in the first direction and are arranged at intervals; according to the overlapping size of the projection of the metal evaporation layer of the reference film in the stacking direction and the projection of the metal evaporation layer of the alignment film in the stacking direction, the position of a material shaft used for placing the alignment film in the rolling equipment is adjusted; and preparing the capacitor core by adopting the adjusted rolling equipment. The inter-batch high-voltage capacitor cores obtained based on the rolling method have higher product quality, and the error value of the capacitance values of the inter-batch high-voltage capacitor cores is small.

To provide a power storage element in which generation of a gap between electrodes is suppressed.SOLUTION: A power storage element comprises a wound electrode body 2 having a flat shape and a winding core 6 disposed in a central part of the wound electrode body. The winding core has a flat shape formed by winding a belt-like sheet member and including two folding positions 7A and 7B. The winding core 6 includes a cylindrical part 8 and inner peripheral margin parts 9A and 9B which are disposed inside of the cylindrical part and in which only one end is fixed to the cylindrical part. A length of the inner peripheral margin parts is shorter than a distance from fixing positions 10A and 10B with the cylindrical part 8 to the folding position at a farther side with respect to the fixing positions.SELECTED DRAWING: Figure 2

To provide a winding device that can more reliably prevent collision of tabs with an outer peripheral surface of a transfer roller, and can effectively prevent breaking of the tabs.SOLUTION: A winding device comprises a rotatable winding core, and electrode sheets 4, 5 having tabs 4b, 5b are supplied to the winding core while being accelerated or decelerated. The winding device includes a rotatable transfer roller 711, an outer peripheral surface of which is covered by the electrode sheets 4, 5, and that defines a conveyance path of the electrode sheets 4, 5, and a position adjustment part 712 that can adjust the position of the transfer roller 711 along a rotation axis direction of the transfer roller 711. The position adjustment part 712 adjusts the relative positional relationship between the transfer roller 711 and the electrode sheets 4, 5 covering the transfer roller 711, so that valley parts 4c, 5c of the electrode sheets 4, 5 protrude from width directional edge 711e of the outer peripheral surface of the transfer roller 711.SELECTED DRAWING: Figure 10

The invention discloses an aluminum foil disc positioning device for a capacitor roll nailing machine, belongs to the technical field of capacitor roll nailing machines, and solves the problem that an existing aluminum foil disc positioning device for the capacitor roll nailing machine is poor in limiting effect on an aluminum foil disc. Through the round frame, a hydraulic rod, a first rack, a first gear, a rotating rod, a disc, a channel, a sliding block, a connecting column, a long connecting plate, a sliding groove, a sliding rod, an opening and a limiting plate, the hydraulic rod fixed to the inner wall of the round frame is started to drive the first rack to move, and the first rack and the first gear drive the disc on the surface of the rotating rod to rotate; sliding blocks in four sets of arc-shaped channels formed in the surface of a disc at equal intervals slide outwards from the ends, close to a rotating rod, of the channels to the ends, away from the rotating rod, of the channels, so that the sliding blocks drive sliding rods to slide outwards in sliding grooves formed in the surface of a long connecting plate, and the sliding rods drive limiting plates to move outwards out of an opening. Accurate positioning and pressing of the disc body are achieved, the problem of deviation or dislocation is avoided, and the positioning accuracy is improved.

The invention relates to the technical field of film winding equipment, in particular to a winding device of a metallized film capacitor, which comprises a rack and a winding roller rotationally mounted in the rack, and a winding control mechanism is arranged in the rack and used for controlling the sample injection direction of a film relative to a film roll when the film is wound; a tension roller is arranged in the machine frame, and an adjusting mechanism is arranged between the tension roller and the winding control mechanism and used for controlling the position of the tension roller. The tension roller and the winding control mechanism are arranged on the rack, so that the position of the guide roller is automatically adjusted when the thickness of a film roll is increased, a to-be-wound film and the film roll are always in a tangent state, the influence of tension can be effectively reduced, the tensile deformation of the film is reduced, and the production efficiency is improved. The size stability is improved; and the winding compactness uniformity of the film is improved.

The invention discloses a workshop field round element metallized film winding tension device and method, and the device comprises a base, a back frame assembly fixedly connected to the top of the base, a winding roller movably connected to the front surface of the back frame assembly through a bearing, a transmission assembly fixedly connected to the front side of the top of the base, and an electric control assembly fixedly connected to the right side of the back frame assembly. The left side of the back frame assembly is fixedly connected with a tension adjusting mechanism, the tension adjusting mechanism comprises a machine base, the top of the machine base is fixedly connected with a motor, the output end of the motor is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a screw block, and the front face and the back face of the screw block are fixedly connected with first special-shaped plates. According to the winding tension device, the phenomenon that the tension cannot be changed according to the lack of workshop site'calibration 'or'calibration' in the prior art is changed, the convex rod is adopted to drive the winding roller to be adjusted upwards, the tension needed by metallized films with different production requirements can be adapted, and the machining quality of the metallized films cannot be affected.

The utility model discloses a winding machine with good stability for capacitor processing, which relates to the technical field of winding machines and comprises a support frame, a first feeding shaft, a transmission shaft, a heating piece and an air drying piece, and the first feeding shaft, the transmission shaft, the heating piece and the air drying piece are mounted on the surface of the support frame. And a stabilizing piece is installed on the surface of the supporting frame, a second feeding shaft is arranged on the surface of the supporting frame, a cutter is arranged on the surface of the supporting frame, and a damping piece is arranged at the bottom of the supporting frame. Hot air is conveyed through the air heater, air of the air heater is conveyed through the fan cover, the air is blown to a roll film, residual water vapor is evaporated again, dust on the roll film is blown, the quality of the roll film is guaranteed, the upper portion of the roll film is pressed through the pressure sensing block, and the roll film is prevented from being damaged. The lower portion of the rolled film is controlled through the pressing wheels on the fixing columns, the rolled film is conveyed in a limited mode, and displacement of the rolled film in the conveying process is prevented.

A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. The method may include providing a multi-roll calender system comprising a first calender roll, a second calender roll; rotating the first calendering roll at a first rotational velocity; rotating the second calendering roll at a second rotational velocity; providing a first dry electrode material to a first nip between the first calendering roll and the second calendering roll to form a dry electrode film. The second rotational velocity may be greater than the first rotational velocity.

The invention provides a capacitor core, a metallized film winding type flattening capacitor and an electronic product, and relates to the technical field of electronic components. According to the capacitor core provided by the invention, the transverse thermal shrinkage rate and the longitudinal thermal shrinkage rate of the metalized film used for preparing the capacitor core body are close to those of the insulating film used for preparing the protective sleeve (outer wrapping film); therefore, in the subsequent heat setting process of the capacitor core, the contraction degree of the capacitor core body and the contraction degree of the protective sleeve are basically consistent, the protective sleeve and the capacitor core body can be tightly attached, and metal particles are prevented from permeating into a gap between the protective sleeve and the capacitor core body in the metal spraying process. Therefore, the possibility of explosion abnormity in the energizing process is reduced. The capacitor prepared by the capacitor core provided by the invention is safer in the subsequent use process.

The invention provides an external automatic deviation rectifying device and capacitor winding equipment, the external automatic deviation rectifying device is used for being arranged on the outer side of a capacitor winding machine, the external automatic deviation rectifying device comprises a rack part and a deviation rectifying part arranged on the rack part, and the deviation rectifying part comprises a driving device, a driving device, a deviation rectifying device and a control device; the driving device is used for being in shaft driving connection with a pole foil discharging disc in the capacitor winding machine; the position detection device is used for detecting offset information of the electrode foil located in the foil guide channel; and the controller is used for controlling the axial movement of the electrode foil discharging disc shaft according to the deviation information so as to correct the position of the electrode foil, so that the existing manual deviation correction type capacitor winding machine has an automatic deviation correction function of the electrode foil, and meanwhile, structural transformation or repurchase of a new capacitor winding machine on the existing manual deviation correction type capacitor is not needed. The improvement cost of the capacitor winding machine is reduced, and the situation that an existing manual correction type capacitor winding machine is idle and wasted is also avoided.

The utility model discloses a paper channel structure of a winding machine, which comprises a paper channel A, a paper channel B, a paper channel C and a paper channel D. An idler wheel A is arranged between the paper channel A and the paper channel B, an idler wheel A and an idler wheel B are arranged between the paper channel A and the paper channel C, and an idler wheel is arranged between the paper channel B and the paper channel D. According to the utility model, the number of the rollers B and the number of the rollers A are increased in the paper channel A, the paper channel B, the paper channel C and the paper channel D, so that the friction force between electrolytic paper and the rollers is improved, and the paper channel A, the paper channel B and the paper channel C are additionally provided with the pressing plates, so that the slipping phenomena such as paper running and foil running are avoided. The overlapping degree of the electrolytic paper, the positive aluminum foil and the negative aluminum foil is kept between 0.25 mu m and 0.35 mu m, after long-term operation for more than one year, the performance is stable, and the overlapping degree of the produced positive foil and negative foil meets the production process requirements of capacitors.