1157results about "Rotary press" patented technology

The embodiment of the invention provides an online detection method and system for extension information of a pole piece and a roller press, relates to the technical field of battery production, and at least solves the problem that the extension rate of an empty foil area is detected mainly through offline detection, manual visual detection and the like in the related technology. The problems of low detection efficiency, poor real-time performance, low accuracy, much material waste and the like exist in the prior art. The online detection method comprises the steps that extension information of a current pole piece is determined based on first identification information of the current pole piece and second identification information of the current pole piece, and the first identification information is determined based on a first image, collected by a first visual detection system of the roller press, of the current pole piece; the roller press comprises an unwinding mechanism, a marking mechanism, a first visual detection system, a rolling mechanism, an extension mechanism, a second visual detection system and a winding mechanism which are sequentially arranged in the conveying direction of the pole piece, and the second identification information is determined based on a second image, collected by the second visual detection system, of the current pole piece.

The rolling device comprises a heat conduction roller and a temperature control mechanism, and the heat conduction roller is provided with an axial end face located at the end and a radial surface located on the circumferential side; the temperature control mechanism is arranged outside the heat conduction roller and located in the axial direction and / or the radial direction of the heat conduction roller, and the temperature control mechanism is used for heating or cooling the axial end face and / or the radial surface of the heat conduction roller. The temperature control mechanism can adjust the temperature of the local deformation area of the heat conduction roller in a targeted manner, so that the surface of the heat conduction roller generates temperature change, and the temperature change can enable the heat conduction roller to generate deformation resisting deflection and thermal expansion due to thermal expansion and cold contraction, so that the problem that the thickness of the local area of a pole piece is thinned due to excessive approaching of the heat conduction roller is solved; therefore, the thickness uniformity of the rolled pole piece is improved. The thickness uniformity of the rolled pole piece is improved.

The invention relates to the technical field of lithium battery manufacturing equipment, and discloses a rolling thickness control method and device, electronic equipment and a storage medium. According to the method, in the working process of the roller press, the real-time thickness of a machined object of the roller press is measured, the real-time thickness is compared with the target thickness, all adjusting parameters in a PID control algorithm are updated according to the comparison result, and the adjustment amount of the rolling parameters of the roller press is calculated through the PID control algorithm with the updated adjusting parameters. And therefore, closed-loop control on the rolling thickness is realized. In the working process of the roller press, the adjusting parameters of the PID control algorithm are updated on line according to the real-time condition, extra manpower and time do not need to be occupied for updating the adjusting parameters of the control algorithm, manpower and time consumption is saved, the adjusted adjusting parameters can better adapt to the real-time working condition of the roller press, and the working efficiency of the roller press is improved. And the accuracy of controlling the rolling thickness is improved.

The invention provides a pole piece and a manufacturing method thereof, a rolling system and a secondary battery, and the manufacturing method of the pole piece comprises the following steps: coating slurry on a current collector and drying to obtain a dried pole piece; the difference between the thickness of the dried pole piece and the preset thickness after rolling is used as the total rolling reduction; the dried pole piece is subjected to continuous multi-stage rolling, adjacent two-stage rolling is carried out, the percentage of the rolling reduction of the previous-stage rolling in the total rolling reduction is larger than or equal to the percentage of the rolling reduction of the next-stage rolling in the total rolling reduction, and the sum of the rolling reduction of all stages of rolling is equal to the total rolling reduction; in the multi-stage rolling, the rolling reduction of each stage of rolling is gradually reduced on the whole; and the multi-stage rolling is cold pressing. According to the manufacturing method of the pole piece, the multi-stage rolling mode is adopted, the rolling reduction decreasing and roller gap adjusting mode is adopted, the diameter, roughness and hardness of the roller body are combined to adapt to different rolling reduction, and finally the consistency of stress release and the pole piece is achieved.

Proposed is an apparatus and method for manufacturing a dry electrode sheet. The apparatus includes a material feeder supplying an electrode material, a pair of sheet forming rollers facing each other and forming an electrode sheet by pressurizing the electrode material supplied from the material feeder, a first force sensor connected to each of the sheet forming rollers and measuring a force applied to each of the sheet forming rollers, a thickness sensor measuring a thickness of the electrode sheet, a gap adjuster connected to each of the sheet forming rollers and adjusting the gap between the sheet forming rollers, and a controller controlling the gap adjuster to adjust the gap between the sheet forming rollers on the basis of a force value measured by the first force sensor so that the thickness of the electrode sheet received from the thickness sensor matches a target value.

The invention provides an anti-sticking roller self-cleaning pole piece pressing device for lithium battery production, which comprises a supporting plate and two groups of supporting rods symmetrically arranged on the top surface of the supporting plate, an operation part is arranged between the two groups of supporting rods, a plurality of groups of vertically parallel pressing roller pieces are arranged in the operation part, the two ends of the pressing roller pieces are connected with the supporting rods, and one group of pressing roller pieces is connected with the supporting rods in a sliding manner. A driver for driving the support rod to move and rotate is arranged on one side of the support rod; cleaning parts are arranged on the two sides of the supporting plate, an operation part is located between the cleaning parts, a cleaning assembly comprising a mounting frame and two sets of scrapers is arranged in each cleaning part, the scrapers scrape and press roller impurities, the mounting frames are connected with the supporting rods through lead screw structures, and the scrapers are mounted in the frames and make contact with the rollers; and a dry ice spraying part for spraying dry ice particles to the compression roller piece is also arranged in the group of cleaning parts. The device realizes self-cleaning of the compression roller piece through the cleaning assembly and the dry ice spraying part, solves the problems that a traditional device depends on manual cleaning, is low in efficiency and is easy to damage the compression roller, and guarantees the production quality and efficiency of the lithium battery pole piece.

The utility model relates to the field of cooked wheaten food production, and discloses flour cake forming equipment which comprises a base, a flour box is installed at the top of one end of the base, a flour discharging pipe is arranged at the bottom of the flour box, a flour screening plate is movably connected to the bottom of the flour discharging pipe, and two sets of moving rods are connected into the flour screening plate. One ends of the two moving rods are connected with a driving assembly, two side plates are installed on one side of the flour box, two arc-shaped grooves are formed in the two side plates, two connecting shafts are slidably connected into the two arc-shaped grooves, and the other ends of the two connecting shafts are connected with extrusion rollers; and one side of the arc-shaped groove is rotationally connected with a connecting handle, the height of the extrusion roller can be adjusted through the side plate, the arc-shaped groove, the connecting handle and the connecting shaft, the distance between the extrusion roller and the conveying belt can be adjusted, dough cakes with different thicknesses can be conveniently rolled out, cooked wheaten food of different types can be conveniently produced, and the application range of the equipment is widened.

The invention discloses roll forming equipment with a cooling structure, and belongs to the technical field of electrode roll forming equipment, the roll forming equipment comprises a shell, a press roll driving unit is arranged on one side of the top of the shell, and two press roll units with opposite rotating directions are arranged in the press roll driving unit. According to the device, an external adjusting device adjusts the use distance between multiple compression rollers in the compression roller unit, at the moment, a spring can drive a sliding base and a rack to move, a second annular gear drives a rotating shaft and a protruding block to rotate, a main oil bag expands, and a second spiral blade is driven to move; according to the cooling device, the screw pitch between the second spiral blade and the first spiral blade is adjusted, the flowing speed of cooling liquid between the first spiral blade and the second spiral blade is increased in an auxiliary mode, the laminar flow of the cooling liquid is destroyed, and therefore the overall cooling effect of equipment is effectively improved; and through dynamic adjustment, the equipment is suitable for the cooling requirements of electrode diaphragms with different thicknesses produced under variable working conditions.

The utility model discloses a rolling device which comprises an installation frame, an upper roller and a lower roller, a crack for a pole piece to pass through is arranged between the upper roller and the lower roller, two ends of the upper roller are respectively connected with a first bearing seat, the two first bearing seats are installed on the installation frame in a sliding mode, two ends of the lower roller are respectively connected with a second bearing seat, and the second bearing seats are installed on the installation frame in a sliding mode. The two second bearing seats are installed on an installation frame, the upper roller and the lower roller are in transmission through a gear transmission mechanism, an ultrasonic transducer is arranged on the installation frame, the output end of the ultrasonic transducer is connected with the first bearing seat, and the ultrasonic transducer is used for driving the first bearing seat to vibrate up and down. According to the rolling device disclosed by the utility model, under the action of inertia force generated by high-frequency vibration of the upper roller, the pole piece is rolled and generates plastic deformation, particles in a coating displace, and pores are reduced, so that the surface density of the pole piece is increased.

The application discloses a dynamic roller pressing forming device for a gradient-pore diaphragm for a silicon-based negative electrode, comprising a modular coating unit, a multi-shaft roller pressing machine group and a partitioned annealing cavity arranged in sequence, the modular coating unit comprises a slit coating mechanism, a spray coating mechanism and a micro-gravure coating mechanism arranged in sequence, the multi-shaft roller pressing machine group comprises a main pressing roller and a supporting roller matched with the main pressing roller, and a dynamic pressure feedback system is arranged on the main pressing roller; and the application further discloses a method for preparing a gradient-pore high-molecular diaphragm by using the forming device. The device is provided with the main pressing roller of the multi-shaft roller pressing machine group and the partitioned annealing cavity, and the dynamic pressure feedback system is arranged on the main pressing roller, so that the accurate matching between the pore structure and the expansion behavior of the silicon-based negative electrode is realized, the stress buffering capacity and the ion transmission efficiency of the diaphragm are improved, and the device is suitable for the technical field of lithium ion battery materials.

A device and method for manufacturing an electrode are disclosed. An electrode manufacturing device includes an electrode sheet supply roll transferring a pre-electrode sheet which forms a face and another face; a position adjustment roll adjacent to the electrode sheet supply roll and receiving the pre-electrode sheet from the electrode sheet supply roll; a laminating roll and a pressurizing roll which receive the pre-electrode sheet from the position adjustment roll and face each other; an active material supply roll facing the laminating roll and providing an active material to the laminating roll; and a heater proving heat to a heating area of the pre-electrode sheet positioned between the electrode sheet supply roll and the position adjustment roll. The pre-electrode sheet and the active material are inserted into and discharged from between the laminating roll and the pressurizing roll.

The invention relates to a main roller wiping device for a lithium battery roller press, which comprises a bottom plate, a bracket is arranged on the bottom plate, a cleaning roller is arranged above a main roller area in the bracket, a sleeve is coaxially fixed at the end part of the cleaning roller, and the sleeve at at least one end of the cleaning roller is circumferentially connected with an output shaft of a rotary driving piece fixed on a supporting piece. While the rotary driving piece can drive the sleeve to move, the sleeve can move relative to an output shaft of the rotary driving piece along the axis, the supporting piece is installed on the support, and the sleeve is connected with a reciprocating linear motion driving mechanism on the supporting piece so as to drive the cleaning roller to do reciprocating motion along the axis of the cleaning roller. The roller wiping device is good in cleaning effect.

The invention discloses double-roller type pressing equipment for lithium battery production and manufacturing, and relates to the technical field of lithium battery production, the double-roller type pressing equipment comprises a machine base, and a lifting frame and a supporting frame are fixedly mounted on the two sides of the top of the machine base correspondingly; and the conveying assembly is used for guiding and conveying the lithium battery pole pieces, and the conveying assembly is fixedly mounted at the top of the lifting frame. According to the double-roller type pressing equipment for lithium battery production and manufacturing, before a pole piece is pressed, a worker adjusts the height of a guide roller and a bearing frame set, so that the pole piece is placed above the bearing frame set, the guide roller and a rotating rod are arranged on the two sides of the pole piece when the pole piece is conveyed and generate friction with the surface of the pole piece, and at the moment, a second motor drives the guide roller to rotate; the pole pieces are guided and conveyed, the pole pieces are pretreated by the guide rollers and the rotating rods before being pressed, the pressing positions are more fit, and the obliquely arranged lifting frame rubs with the pole pieces through the guide rollers, the rotating rods and the pole pieces to clean dust on the pole pieces when the pole pieces are conveyed.

A bump preparation device, comprising a bump preparation mechanism (100) and a compacting mechanism (200) which are sequentially arranged in a conveying direction (X) of a first material (300), wherein the bump preparation mechanism (100) is used for preparing overvoltage bumps (310) on the first material (300); the height (h) of each overvoltage bump is greater than the height of a preset bump, and the preset bump is a bump required by the first material (300); and the compacting mechanism (200) is used for applying a pressure to the overvoltage bumps (310) towards a main body of the first material (300), so that the thickness (a) of the first material reaches a preset value. The device can improve the thickness consistency of electrode sheets and reduce the risk of tab dislocation. Also provided are a battery production system and a winding method.

The invention is suitable for the technical field of battery production equipment, and provides a bulge making device, a battery production system and a winding method. The protrusion making device comprises a protrusion making mechanism and a compaction mechanism which are sequentially arranged in the conveying direction of the first material, the protrusion making mechanism is used for making overpressure protrusions on the first material, the height of the overpressure protrusions is larger than that of preset protrusions, and the preset protrusions are the protrusions needed by the first material; and the compaction mechanism is used for applying pressure towards the main body part of the first material to the overpressure salient points, so that the thickness of the first material reaches a preset value. According to the bulge making device, the battery production system and the winding method provided by the invention, the consistency of the thickness of the pole piece can be improved, and the risk of dislocation of the tab is reduced.

The utility model discloses an auxiliary device for additive remanufacturing, and relates to the technical field of additive manufacturing. The device comprises a gathering frame, a discharging box is fixedly installed at the bottom end of the gathering frame, two sets of symmetrically-distributed rotating rods are rotationally arranged in the discharging box, pressing rollers are fixedly arranged on the outer sides of the two sets of rotating rods, first gears are fixedly arranged at one ends of the two sets of rotating rods, and the multiple first gears are connected in a meshed mode. A collecting box is slidably arranged at the bottom of the discharging box, a rotating shaft is rotatably arranged on one side of the discharging box, a second gear is fixedly arranged on the outer side of the rotating shaft, and a third gear is connected to the bottom of the second gear in a meshed mode. According to the device, chippings can be extruded to be in a sheet shape through the pressing rollers, the occupied area of the chippings is reduced, meanwhile, the collecting box can move in a reciprocating mode, the chippings can be evenly distributed in the collecting box, the chippings are prevented from being accumulated at one position of the collecting box, and the cleaning frequency of workers is reduced.

Generally described, one or more aspects of the present disclosure relate to methods, systems, and devices related to pre-straining bare lanes of a multilane electrode with a system for calendering a multilane electrode including a pre-strain roll device including a plurality of pre-strain rollers and a pressure roller forming a pre-strain nib and a calender roll device comprising a pair of calendering rollers forming a calendering nip positioned downstream from the pre-strain roll device.

The utility model discloses a soybean flattening cooking processing device which comprises a feeding auger, a material box, a flattening machine and a steam auger, the flattening machine is installed on the lower portion of a support, the flattening machine comprises a motor, an output shaft of the motor is connected with a driving belt wheel, one side of the motor is provided with an extrusion cylinder, the upper portion of the extrusion cylinder is provided with a material receiving hopper, and the material receiving hopper is connected with the steam auger. The lower part of the extrusion cylinder is provided with a discharge port, the interior of the extrusion cylinder is rotatably connected with a screw rod, the screw rod is a variable-pitch screw rod, the pitch of the screw rod is gradually reduced from the receiving hopper to one side of the discharge port, and one end of the screw rod is provided with a driven belt wheel; one end of the steam auger is communicated with a steam connecting pipe, the steam connecting pipe is connected with a steam boiler, and a blanking port is formed in one end of the steam auger. According to the soybean organic fertilizer processing device, soybeans are flattened through the flattening machine, the flattened soybeans are cooked through the steam auger, manual operation is reduced, the processing cost of soybean organic fertilizer is reduced, and the processing efficiency and quality of the soybean organic fertilizer can be greatly improved.

The invention relates to the technical field of data processing, and discloses a roller press parameter adjusting method and system, rolling equipment and a storage medium, and the method comprises the following steps: obtaining target parameters of a roller press reaching a preset operation state, and carrying out parameter configuration on roll gaps at all levels to form a first parameter sequence; on the basis of the first parameter sequence and the target parameter, determining speed ratio configuration among all sections of rollers of the roller press to form a second parameter sequence; the roller press is controlled to execute feeding operation according to the first parameter sequence and the second parameter sequence, and diaphragm detection data formed through processing of the roller press are collected; and correcting the parameter sequence according to the difference between the diaphragm detection data and the target parameter to obtain a target diaphragm parameter. According to the invention, automation and standardization of debugging of the roller press are realized, the precision of parameter configuration and the production consistency are remarkably improved, the dependence on manpower is reduced, the targets of membrane thickness and surface density are stably realized, and the machine debugging efficiency and the product yield are improved.

The utility model relates to a battery pole piece and a rolling device, and belongs to the technical field of batteries, the battery pole piece comprises a foil piece, at least one surface of the foil piece is provided with blank areas and coating areas which are alternately arranged in the width direction of the foil piece, and the coating areas are coated with electrode slurry layers and protective slurry layers located on at least one side of the electrode slurry layers in the width direction; and a plurality of notches which penetrate through the protective slurry layer and the foil and are arranged at intervals along the length direction of the foil are formed in the battery pole piece. As the protective slurry layer coating part is provided with the plurality of notches which penetrate through the protective slurry layer and the foil and are arranged at intervals along the length direction of the foil, the notches can release stress, so that the extension of the protective slurry layer coating part is larger, and the tensile extension of the protective slurry layer coating part is ensured; and the coating part of the protective slurry layer can be matched with the stretching extension of the blank area, so that the extension of the coating part of the subsequent electrode slurry layer after rolling can be matched, and wrinkles generated by rolling can be effectively reduced.

The invention provides a control method and device of a roller press, and belongs to the technical field of batteries. According to the implementation scheme, the control method of the roller press comprises the steps that the measured thickness value of a to-be-measured pole piece obtained by conducting thickness detection on the to-be-measured pole piece is obtained; calculating a thickness deviation value according to the measured thickness value and a target thickness value of the to-be-measured pole piece; in response to the fact that the thickness deviation value is larger than a preset threshold value, the roller pressure adjusting amount is determined based on the thickness deviation value and a PID algorithm; the roller pressure value of the roller press is corrected based on the roller pressure adjusting quantity, and the roller press is controlled to conduct rolling operation on the to-be-measured pole piece through the corrected roller pressure value; and repeating the steps until the thickness deviation value is smaller than or equal to a preset threshold value.

Calendering methods that accurately and / or precisely calender dry electrode films, and systems thereof, are described. The methods and systems are able to control the calendering nip and / or calendering distance between the calendering rollers with and / or without the presence of an electrode film and / or electrode powder mixture such that the variation of the calendering distance is reduced.

The invention relates to a multi-roller calender for producing electrodes in a dry coating method, comprising a plurality of rollers which are arranged one behind the other substantially in a main conveyor direction of an electrode path to be produced. A respective roller gap for passing through the electrode path is formed between each pair of adjacent rollers, which run in opposite directions, wherein at least two adjacent rollers of the plurality of rollers are arranged such that the outer radii thereof overlap in the main conveyor direction. The invention additionally relates to an assembly comprising two multi-roller calenders for laminating both sides of a metal foil with electrode paths and to a method for producing an electrode path using a multi-roller calender.

The invention relates to a rotary press comprising a rotor which can be rotated by means of a rotary drive and which has upper and lower punch guides for upper and lower press punches and a die plate arranged between the punch guides, the press punches interacting with the cavities of the die plate, and a filling device, the invention relates to a rotary press for filling a powder material to be pressed into a cavity of a mold disc, comprising a pressure device having an upper and a lower pressure unit which, during operation, interacts with an upper and a lower pressing punch in order to press the powder material in the cavity into a pressed article, comprising a scraping device, and a scraping device for scraping off the pressed product ejected onto the upper side of the mold plate by the lower pressing punch after pressing, the scraping device having a scraping channel arranged at least partially above the mold plate in order to guide the pressed product ejected onto the upper side of the mold plate from the mold plate to the first pressed product outlet along the scraping channel.

The invention provides a prepreg method and equipment for automatically adjusting compensation parallelism, computer equipment and a storage medium. The method comprises the steps that an upper roller and a lower roller abut against each other in parallel to obtain a current end pressure standard value; setting an end pressure deviation threshold value; respectively obtaining a first end pressure value and a second end pressure value when the two ends of the upper roller and the lower roller jointly extrude the carbon fibers during preimpregnation; carrying out difference processing on the first end pressure value and the second end pressure value to obtain an end pressure deviation value; judging whether the absolute value of the end pressure deviation value is greater than an end pressure deviation threshold value; if yes, the gaps between the two ends of the upper roller and the gaps between the lower roller are automatically adjusted so as to compensate the parallelism between the upper roller and the lower roller. Through comparison and judgment of the end pressure deviation threshold value and the absolute value of the end pressure deviation value, the gap does not need to be adjusted according to the pressure detection value, mechanical vibration and pressure detection noise are prevented from causing excessive adjustment of preimpregnation equipment, interference items of mechanical vibration and pressure detection noise are eliminated, and the prepreg operation is more stable.

The present disclosure relates to a roll crusher, the roll crusher comprising a frame, a first crushing roll and a second crushing roll arranged axially parallel to each other, and a deflection distributor. The roll crusher further comprises: at least one load sensor configured to detect a material load in the deflection distributor; and at least one positioning sensor configured to detect a parameter related to a distance between a first point and a second point of the roll crusher. At least the first point is defined on the deflection distributor or on one of the movable bearing housings of the roll crusher. The present disclosure also relates to a method for monitoring a physical condition of a deflection distributor and a retrofit kit for a roll crusher.

The present disclosure relates to a press bonding apparatus for an electrode foil of an all-solid-state secondary battery including an asymmetric rolling press element that may precisely adjust the supply speed and rolling speed while preventing damage to metal foils, thereby improving the uniformity and coating flatness of the electrode foil.

The invention relates to a self-adaptive dry method pole piece rolling parameter adjusting method and device and electronic equipment. The method comprises the following steps: collecting first sample data, training by adopting a machine learning algorithm based on the first sample data, and constructing a prediction model; in response to the received target pole piece thickness and target pole piece surface density, determining target process parameters based on the prediction model; the target process parameters are issued to an execution mechanism of the roller press, and the actual pole piece thickness and the actual pole piece surface density in the production process are collected; and comparing the actual pole piece thickness and the actual pole piece surface density with the target pole piece thickness and the target pole piece surface density respectively, and when a comparison result determines that a deviation value exceeds a preset threshold value, recalculating and issuing corrected target process parameters based on the prediction model, the actual pole piece thickness and the actual pole piece surface density. According to the scheme provided by the invention, self-adaptive dry-method pole piece rolling parameter adjustment can be realized, the debugging period is effectively shortened, and the production efficiency is improved.

Aspects of the disclosure include an electrode calendering system having an electrode foil wrinkle remover band and a process for manufacturing electrodes using the same. An exemplary system includes a top roll press and a bottom roll press separated from the top roll press by a gap. The gap includes a distance selected to accommodate a current collector having a bare portion and a coated portion having thereon an active electrode material of a first thickness. The system further includes a wrinkle remover band having a second thickness selected, based on the first thickness, to evenly distribute stress across the bare portion and the coated portion of the current collector during a calendering process for forming a pressed electrode.

A rolling forming apparatus used for textures on ceramic, comprising an upper pressing roller assembly (1) and a lower pressing roller assembly (2), the upper pressing roller assembly (1) and the lower pressing roller assembly (2) being oppositely distributed, and the upper pressing roller assembly (1) and the lower pressing roller assembly (2) being spaced apart to form an embossing channel (3) therebetween. An upper steel belt (11) of the upper pressing roller assembly (1) and / or a lower steel belt (21) of the lower pressing roller assembly (2) is wound with a texture roll-pressing member (41) which is elastic, the surface of the texture roll-pressing member (41) being provided with embossing protrusions. The texture roll-pressing member (41) is used for rolling forming of textured ceramic board blanks during the process of ceramic powder passing through the embossing channel (3) in a conveying direction.