906results about "Rotary press" patented technology

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 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 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 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 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 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 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.

The invention relates to the technical field of battery pole piece rolling processing, and provides lithium battery pole piece rolling equipment and a rolling method.The lithium battery pole piece rolling equipment comprises a machine tool and a rolling assembly arranged on the machine tool, a first pressing roller and a second pressing roller are located at the same height, the rotating axes of the first pressing roller and the second pressing roller are parallel, and a third roller gap used for rolling a battery pole piece is formed between the first pressing roller and the second pressing roller; the third compression roller rotates and swings around the first compression roller, a second roller gap used for rolling the battery pole piece is formed between the third compression roller and the first compression roller, the rotation axis and the swing axis of the third compression roller are parallel to the rotation axis of the first compression roller, and the third compression roller eccentrically swings on the side, away from the second compression roller, of the first compression roller; and the size of the second roll gap is increased or decreased. The problems that lithium battery pole piece rolling equipment in the prior art is generally limited to adjustment of the horizontal distance of a roll gap and lacks the capacity of adjusting the length of a moving path of a battery pole piece, so that the yield of the pole piece is difficult to improve, the production cost is increased, and the production efficiency is reduced are solved.

The invention relates to the technical field of rolling equipment, in particular to high-speed heavy intelligent rolling equipment which comprises a main body rack, a rolling mechanism, an adjusting mechanism and a control panel. A rolling chamber and a mounting chamber are formed in the main body rack, and the rolling chamber is used for accommodating a rolling mechanism; the mounting chamber is adjacent to one side of the rolling chamber and is used for integrating and accommodating a power driving assembly; the rolling mechanism is connected with the adjusting mechanism and comprises a rolling set in transmission connection with the power driving assembly. The adjusting mechanism is connected to the axial end of the rolling set, and the roller shape of the rolling set is adjusted through the telescopic action of the adjusting mechanism so that the fit clearance between rollers can be eliminated. And the control panel is movably connected to one end of the main body rack and is used for integrally controlling operation parameters of the equipment. The invention aims to provide the high-speed heavy intelligent rolling equipment with high precision and high efficiency.

A rolling system for the electrode plate substrate may include a pair of rolling rolls configured to roll an electrode plate substrate to which an active material is applied. Upstream guide rolls are disposed on an upstream side of the rolling rolls and configured to supply and guide the electrode plate substrate from an unwinder to the rolling rolls. Downstream guide rolls are disposed on a downstream side of the rolling rolls and configured to guide the rolled electrode plate substrate from the rolling rolls to a rewinder to be wound on the rewinder. Scratch rolls may be provided upstream and downstream of the rolling rolls to prevent formation of wrinkles in the electrode plate substrate.

Generally described, one or more aspects of the present disclosure relate to systems, methods, and devices for trimming and peeling electrode films. The system can be integrated into a calender rolling system and can create multi-lane films with clean edge quality for lamination. The system can include a trimming device including a cutting device, and a material removing device positioned downstream from the cutting device, the material removing device including a scraper element, a support element positioned upstream from the scraper element, and a vacuum element.

The present invention discloses a tableting device for powder coating production, and relates to a tableting device comprising an equipment frame, a panel fixedly connected to the equipment frame, a driving roller and a driven roller rotatably connected to the panel, the driving roller and the driven roller being connected via a gear transmission, the driving roller and the driving motor being connected via a gear transmission, the driving roller and the driven roller both comprising a rotating extrusion roller body, the outer edges of the extrusion roller bodies being provided with cooling channels for supplying cool air, and a cooling fan being further provided on the equipment frame for supplying air to the cooling channels. By providing cooling channels on the driving roller and the driven roller, the cooling airflow provided by the cooling fan can be injected into the cooling channels in real time. Based on the structural arrangement of the air distribution mechanism, the cooling airflow can be directly injected into the extrusion surface between the driving roller and the driven roller, thereby avoiding insufficient cooling and providing a guarantee for the continuous tableting of the powder coating.

The utility model discloses an electric adjusting roller press for a carbon plate for a battery, relates to the technical field of battery manufacturing equipment, and aims to solve the problems that a gap of a roller shaft of an existing carbon plate roller press for the battery often needs to be manually adjusted, and carbon powder adhered to the outer side of the roller shaft can influence subsequent production of the carbon plate during rolling of the carbon plate. According to the scheme, the device comprises a supporting table, a first adjusting groove is formed in one side of the supporting table, a fixed block is fixedly arranged at one end in the first adjusting groove, an adjusting block is installed at the other end in the first adjusting groove, a movable block is arranged on one side of the adjusting block, and an adjusting lead screw is connected into the movable block in a penetrating mode; roll shafts are connected to one sides of the fixing blocks and the adjusting blocks, first cleaning blocks are installed on one sides of the roll shafts, and second cleaning blocks are connected to the other sides of the roll shafts. The carbon plate rolling device is novel in structure, gaps between the roller shafts can be automatically adjusted, the roller shafts can be cleaned when carbon plates are rolled, and the quality of subsequent carbon plate rolling production is guaranteed.

The utility model relates to the technical field of bottle cap production, in particular to a pressing type aluminum foil sealing tool for bottle cap production, which is reasonable in structural design and mainly comprises a lower cap conveying component, an aluminum foil feeding component and a sealing component. The aluminum foil feeding assembly is used for continuously transferring a strip material used for forming an aluminum foil piece through stamping to the position above the lower cover, the sealing assembly is used for stamping the strip material, and the separated aluminum foil piece is heat-sealed on the lower cover. A spinning heating head capable of ascending, descending and rotating is arranged in the sealing assembly, the separated aluminum foil can be bonded in an annular spinning groove in a hot melting mode through the spinning heating head, and the sealing performance after heat sealing is improved through spinning.

The invention provides a lithium-manganese button cell positive electrode ring prepared based on a dry electrode process as well as a preparation method and application of the lithium-manganese button cell positive electrode ring. The method comprises the following steps: premixing electrolytic manganese dioxide (EMD) powder, a conductive agent and low-melting-point polytetrafluoroethylene (PTFE) fibers in a low-temperature environment; carrying out high-speed shearing on the premixed material to form a dry electrode blank material with self-supporting capability; the obtained dry electrode blank material is subjected to hot rolling through a heating roller device, and an obtained film material is conveyed back to the heating roller device to be subjected to second face rolling; wherein the temperature of the roller is controlled within a temperature range which is lower than the melting point of the PTFE fiber but is enough to enable the PTFE fiber to creep, and meanwhile, high pressure is applied; and die cutting and forming. The positive electrode ring of the lithium-manganese button cell prepared by the method has a unique gradient pore structure and a high-conductivity network, and polarization is greatly reduced, so that the cell is more suitable for an application scene of high pulse current discharge.

The utility model relates to a hot rolling device which comprises a hot pressing assembly, and the hot pressing assembly comprises an upper pressing roller and a lower pressing roller which are used for rolling a material layer and a heating piece used for heating the material layer to be rolled and the pressing rollers. The heating pieces are arranged on the upstream and downstream of the upper and lower pressing rollers in the conveying direction of the material layer, heat reflecting surfaces are further formed on the sides, away from the conveying direction and the pressing rollers, of the heating pieces, the heat reflecting surfaces are used for reflecting heat emitted by the heating pieces, and the heating pieces are separated from the pressing rollers, so that a heat source is separated; the heat generated by the heat source is concentrated in the space where the material layer conveying path near the compression roller is located, so that the heating uniformity of the material layer is improved while the heating effect on the material layer is ensured.

The invention relates to the technical field of lithium battery electrode rolling forming, and discloses a lithium battery electrode pressing forming device and method, the lithium battery electrode pressing forming device comprises a workbench and a base, the top of the workbench and the bottom of the base are fixedly installed, and the two sides of the workbench are each provided with a deviation rectifying tension compensation mechanism. According to the compression molding equipment and method for the lithium battery electrode, the contact detection mechanism can convert a pole piece deviation force into a detection force and transmit different detection forces according to different deviation degrees, and the oil path switching mechanism carries out different opening operations on an oil path according to the magnitude of the detection force; the tension adjusting mechanism converts rotating force into adjusting force for tension compensation adjustment, the tension can be detected and accurately adjusted in real time when the pole piece deviates during high-speed continuous rolling, the problem that the edge of the pole piece and the pressure of a roller are unbalanced due to deviation is effectively solved, and the service life of the pole piece is prolonged. And the conditions that the thickness consistency of the pole piece becomes poor, the compaction density is not uniform, the edge is torn, wrinkles or belt breakage are generated and the like are prevented.

Disclosed is an electrode sheet calender roll including a hard layer formed by physical vapor deposition and a manufacturing method thereof. The manufacturing method of the electrode sheet calender roll according to one embodiment of the present invention is characterized by including: a hard layer forming step of forming a hard layer on a roll core composed of a steel material containing carbon by a PVD method; and a hard layer forming step of polishing the hard layer so that the thickness of the hard layer is different between a center portion and end portions of the calender roll.

The multi-station rolling die comprises a machine frame, a plurality of rotating rollers are rotationally connected to the interior of the machine frame, a plurality of strip-shaped openings are formed in the inner wall of the top end of the machine frame, rolling rollers are arranged on the inner walls of the strip-shaped openings in a sliding mode respectively, a movable frame is arranged above the machine frame in a sliding mode, and the movable frame is connected with the rotating rollers in a sliding mode. An air cylinder is fixedly connected to the top end of the rack, an opening is formed in the top inner wall of the movable frame, the air cylinder penetrates through the opening, a connecting frame is fixedly connected to the end of a piston rod of the air cylinder, and the connecting frame is fixedly connected to the upper surface of the movable frame. The piston rod of the air cylinder stretches out and draws back to drive the connecting frame and the movable frame to move up and down, so that the distance between the rolling roller and the rotating roller is adjusted, the rolling roller is adjusted to a proper position according to the size and forming requirements of a pencil holder, and a pencil holder raw material can smoothly pass through the position between the rotating roller and the rolling roller and is rolled.

The utility model discloses a flue-cured tobacco seedling raising hole pressing roller cleaning device, which comprises a hole pressing unit, which comprises a bearing conveying table, a hole pressing roller erected on the bearing conveying table, and a plurality of rows of hole pressing blocks formed on the hole pressing roller at intervals along the circumferential direction; the cleaning unit comprises a cleaning roller erected on the bearing conveying table, a brush arranged on the cleaning roller and a material receiving box arranged below the cleaning roller, and the brush is arranged to be in contact with the hole pressing roller. By arranging the cleaning roller, the brush and the material receiving box outside the hole pressing roller, the brush can clean the adhered matrix before and after hole pressing of the hole pressing roller, so that the hole pressing treatment effect is better, and the cleaned soil falls into the material receiving box, so that waste of the cleaned soil can be avoided, or the cleaned soil is prevented from being scattered on a seedling raising tray again.

A solid electrolyte-electrode assembly, as well as an all-solid-state battery including the assembly are described. For instance, a solid electrolyte-cathode assembly can be formed by co-rolling a plurality of cathode particles and a plurality of solid electrolyte particles, which results in the simultaneous production of the assembly and makes it possible to achieve improved interface resistance between the electrolyte membrane and electrode to improve battery performance. Also, the resulting electrolyte can be thin, which improves the energy density, while also maintaining excellent strength by using an electrode as a support.

A simulation method and a simulation apparatus of roll press for secondary battery production are provided. The simulation apparatus comprises a memory configured to store at least one instruction; and at least one processor configured to execute the at least one instruction stored in the memory, the at least one instruction comprising instructions for executing a device operation unit comprising a 3D roll press associated with secondary battery production, a facility operation unit comprising a plurality of adjustment parameters for determining the operation of the 3D roll press, a main operation panel comprising a plurality of buttons for driving a 3D roll press, and a quality confirmation unit comprising quality information related to the quality of a material produced by the 3D roll press; obtaining at least one of first user behavior information obtained through the device operation unit, button manipulation information obtained through the main operation panel, or first user condition information obtained through the facility operation unit; determining an operation of the 3D roll press based on at least one of the obtained first user behavior information, the obtained button manipulation information, or the obtained first user condition information; and executing the operation of 3D roll press based on the determined operation.

The utility model relates to the field of battery manufacturing, in particular to double-roller equipment for a solid-state battery pole piece, which comprises a feeding assembly, a double-roller assembly, a receiving assembly, a first tray and a second tray, the solid-state battery pole piece in the first tray is fed into the roller assembly through the feeding assembly, the solid-state battery pole piece is rolled through the roller assembly, and the rolled solid-state battery pole piece is contained in the second tray through the receiving assembly. Moreover, the guide rollers can ensure that the solid-state battery pole piece has certain tension and is kept flat when being fed into the roller assembly, so that the thinned solid-state battery pole piece does not have wrinkles, a better rolling effect is achieved, the rolling efficiency is improved, and continuous production is realized.

The utility model discloses an adjustable hygienic product embossing device, and relates to the technical field of hygienic product embossing. The first motor drives the driving wheel to rotate so as to drive the toothed chain to rotate on the two supporting wheels, the toothed chain drives the driven wheel of the moving assembly to rotate, the driven wheel is fixedly connected with the threaded column, the threaded column is driven by the driven wheel to rotate and moves on the supporting plate at the same time, and finally the second motor and the auxiliary part are driven to move. And the distance between the knurling wheel and the auxiliary wheel is further adjusted. The distance between the knurling wheel and the auxiliary wheel can be flexibly adjusted according to the thickness of a hygienic product material, a production line does not need to be frequently replaced, and the production efficiency is improved.