74results about How to "Improve winding quality" patented technology

This utility model discloses a plastic film winding device, applied in the field of plastic film production. It includes a base plate, a support plate bolted to the top of the base plate, and a fixing plate bolted to the surface of a fixing plate. A tension roller is rotatably sleeved between the inner walls of the fixing plates. This utility model achieves good winding quality and ease of use by using friction between a friction block and a friction disc to generate resistance in the tension roller and tighten the plastic film for winding. The rotating head changes the friction between the friction block and the friction disc, adjusting the winding resistance and improving practicality and applicability. Furthermore, the device facilitates replacement by moving a sliding cylinder to disengage it from the fixing groove, and a locking connector, under the action of a third spring, engages with the locking hole to fix the sliding cylinder. The winding roller is then removed from the fixing groove for replacement, reducing workload and improving replacement efficiency.

This invention provides a new energy core based on wide-width amorphous alloy strip and its preparation method, comprising the following steps: winding the amorphous alloy strip based on a tension-wound diameter linear decreasing function to form a single-frame core; splicing multiple single-frame cores along the magnetic circuit direction to form a core body; and annealing the obtained core body under a protective atmosphere to obtain a new energy core. This invention solves the key technical problems of winding, splicing, and annealing of wide-width amorphous alloy strip in the preparation of high-power new energy cores, and realizes the preparation of large-size amorphous alloy cores with low loss, high saturation magnetic induction intensity, and high structural stability.

The utility model belongs to the field of winding devices, and particularly relates to an adjustable winding device which comprises a bottom plate. A first vertical plate is fixedly connected to the side wall of the top of the bottom plate; a second vertical plate is fixedly connected to the side wall of the top of the bottom plate; the first vertical plate and the second vertical plate are symmetrically arranged; by arranging a first electric push rod, a second electric push rod, a movable rod, a fixed seat, an adjusting plate, a fixed plate and a supporting rod, the diameter can be quickly adjusted to be proper according to the specification and winding requirements of polyester cotton yarns, the flexibility is beneficial for a production line to quickly adapt to production of the polyester cotton yarns of different batches or specifications, the overall production efficiency is improved, and the production cost is reduced. By arranging the supporting devices matched with different winding roller diameters, the winding rollers can be fixed from the inside, so that when polyester cotton yarns are wound by the winding rollers, a more stable rotating state can be kept, shaking or deviation caused by external factors is reduced, uniform tension and arrangement of the yarns in the winding process can be kept, and the winding quality of the polyester cotton yarns is improved. Therefore, the winding quality is improved.

The utility model discloses a kind of winding devices for photovoltaic adhesive tape processing in the technical field of adhesive tape winding, including base, vertically fixed with mounting plate on the base upper end, further including winding mechanism and limiting mechanism, the winding mechanism is connected in mounting plate, the limiting mechanism is connected on base.This utility model has the advantages that: the utility model embodiment is equipped with winding mechanism, utilize fastening tube cover and interval ring to can be fixed with multiple winding tube cover on first connecting shaft, and then through motor drive first connecting shaft rotation can simultaneously realize the winding of multiple adhesive tape, be equipped with support mechanism, by spring effect make support frame tightly adhere to winding tube cover on adhesive tape, and then improve the winding quality of adhesive tape, be equipped with limiting mechanism, by the limiting of the both sides of adhesive tape by the limiting roller corresponding to winding tube cover one by one, avoid the deviation of adhesive tape winding.

The utility model discloses a kind of wire winding chuck mechanisms, including fixed seat, rotating shaft, locating block, chuck assembly and two groups of wire clamp components;Rotating shaft is rotatably installed in the fixed seat, chuck assembly is installed at the end of rotating shaft, two groups of wire clamp components are symmetrically installed at the two sides of chuck assembly, through slot is opened in fixed seat, locating block is placed in through slot and can move along through slot, locating groove is opened in locating block, rotating shaft is provided with the flat position matched with locating groove, when chuck assembly is in non-winding state, flat position is connected with locating groove to limit rotating shaft rotation.The wire winding chuck mechanism has self-locking function, self-adapting clamping and the wire winding chuck mechanism of double wire rod fixing structure, solve the problem that positioning is unstable, clamping force is uneven and wire rod is easy to fall off in prior art.

This invention relates to the field of yarn tension testing technology, specifically to a textile yarn tension testing device. The device includes a main frame, a force gauge adapted and installed inside the top of the main frame, two fixed rollers rotatably connected inside the main frame, a motor adapted and installed on the outer side of the back of the main frame, a take-up reel located outside the motor's output end, and two adjusting rollers located inside the main frame. In this invention, the yarn is fixed to the take-up reel after a series of windings. Upon starting the motor, a rotating rod and a disc drive the take-up reel to rotate, thus winding the yarn. Simultaneously, the tension generated during winding is transmitted to the force gauge via a hook to measure the yarn tension. This design allows winding and tension measurement to be performed simultaneously, improving work efficiency.

This invention relates to the field of battery production equipment technology, and in particular to an arc-shaped battery feeding and winding mechanism, comprising a frame base plate, a feeding assembly, and a positive and negative electrode winding assembly. The feeding assembly is mounted on the frame base plate and is used to transport the positive and negative electrode sheets to the winding process. The positive and negative electrode winding assembly is located adjacent to the feeding assembly and is mounted on the frame base plate, and is used for winding the positive and negative electrode sheets. This invention, through the cooperative action of the internal components of the feeding assembly and the positive and negative electrode winding assembly, realizes automated and precise feeding, alignment, winding, and pressing of the positive and negative electrode sheets, replacing the traditional manual winding and stacking process, significantly improving the production efficiency and quality of arc-shaped batteries, reducing manual operation costs, and meeting the needs of large-scale production.

This invention relates to the field of spinning equipment technology, and discloses an anti-tangling high-efficiency winding device for spinning and its usage method. The device includes: a mounting plate, which is configured as a rectangular plate structure for mounting the base layer of the winding device. Positioning plate one and positioning plate two are symmetrically mounted on the upper end of the mounting plate, and an electrically driven rotating rod is disposed between positioning plate one and positioning plate two. This anti-tangling high-efficiency winding device and its usage method, through a positioning clamp assembly set on the surface of the mounting plate and in conjunction with the rollers inside the support frame, provides tension traction for the yarn output. The tapered threaded guide rod installed inside the support frame adopts a spiral protrusion design, which prevents yarn deviation during rapid yarn transport. Combined with the tension roller installed below, it further pulls the yarn tension, allowing for rapid control of the yarn tension. This ensures that the yarn tension is uniform and stable throughout the winding process, maintaining the yarn tension within a suitable range.

The utility model relates to the technical field of winding equipment, and discloses a winding device for a carbon-coated aluminum foil, which comprises a base, a winding device and a winding device, the deviation rectifying mechanism is arranged at the top end of the base; the deviation rectifying mechanism comprises a fixing frame, the bottom end of the fixing frame is fixedly connected with the top end of the base, a driving motor is fixedly installed on the fixing frame, and an output shaft of the driving motor is fixedly connected with a screw in a sleeved mode. According to the winding device for the carbon-coated aluminum foil, due to the design of the deviation rectifying mechanism, the defects in the prior art are effectively overcome, the guide plate can be flexibly adjusted according to the size specification of the carbon-coated aluminum foil, the winding device can be matched with both narrow-width aluminum foil and wide-width aluminum foil, the application range of the winding device in diversified production scenes is greatly expanded, and the winding device is suitable for popularization and application. And the aluminum foil is effectively prevented from deviating, wrinkling and the like in the winding process, the winding quality is greatly improved, and then the performance and production efficiency of the lithium ion battery are guaranteed.

The utility model relates to the technical field of spinning yarns, in particular to a spinning yarn winding and spooling guide device which comprises a vertical plate and a threaded rod, the vertical plate is rotatably connected with two ends of the threaded rod through bearings, the threaded rod is in threaded connection with a threaded block, two ends of the threaded block are slidably connected with the vertical plate, and the vertical plate is connected with the threaded block. A tension detecting structure is arranged in front of the threaded block, a position adjusting structure is arranged on the right side of the threaded rod, a wire inlet is fixedly connected to the upper portion of the front end of the vertical plate, and a wire outlet is fixedly connected to the lower portion of the front end of the vertical plate. Through cooperation of the tension adjusting structure and a worker, the combat power of the spinning yarn is adjusted to be in a proper state, the bolt abuts against the vertical plate, the situation that the thread block moves in the working process, and consequently the tension of the spinning yarn is changed is prevented, winding work is facilitated, and the winding quality is improved. Through cooperation of the tension detection structure and a worker, the tension of the spinning yarn can be displayed and observed in real time, visual inspection of the worker is avoided, and accuracy is improved.

The utility model discloses an optical transparent film roll material deviation rectifying and guiding device, and belongs to the technical field of roll material processing and production. The optical transparent adhesive roll material deviation rectifying and guiding device comprises a winding machine, a bottom plate is connected to one side of the winding machine, a deviation rectifying mechanism is arranged on the top face of the bottom plate, the deviation rectifying mechanism comprises a base, the base is installed on the top face of the bottom plate, a sliding groove is formed in the top face of the base, a sliding block is slidably connected to the interior of the sliding groove, and the sliding block is connected to the bottom face of the bottom plate. One side of the sliding block is in threaded connection with a lead screw, the two ends of the lead screw are rotationally connected to the inner walls of the sliding grooves correspondingly, a motor is installed on one side of the outer wall of the base, the output end of the motor is in transmission connection with one end of the lead screw, and a guide assembly is arranged on the top face of the sliding block; detection mechanisms are arranged on the two sides, away from the guide assembly, of the winding machine correspondingly, the guide assembly comprises a U-shaped base, and the U-shaped base is installed on the top face of the sliding block.

The application discloses a yarn rotary conveying motor, which comprises a bobbin and a shaft sleeve installed at the bottom end of the bobbin, the bobbin is vertically penetrated and rotationally installed on the axis of a shell, the driving mechanism comprises a stator assembly and a rotor assembly, the stator assembly is fixed at equal angles in the inner wall of the shell, a rotor assembly is arranged at the center of the stator assembly and fixed on the bobbin, the bobbin is rotationally installed in the shell through a bearing, and the driving mechanism is connected with a plug-in terminal for power supply through a cable penetrating a lead-out line sheath on the shell. The yarn rotary conveying motor utilizes the principle of electromagnetic driving to form a driving mechanism for driving the bobbin to rotate, saves space and is more convenient to control, and can utilize centrifugal force and magnetic force effect generated in the rotating process to respectively realize overall cooling of a conveying mechanism and efficient winding and cleaning and conveying of the yarn body.

The utility model discloses a novel take-up type winding mechanism for a polytetrafluoroethylene film, which relates to the technical field of winding mechanisms, and adopts the technical scheme that the novel take-up type winding mechanism comprises a case, two cross beam swing arms are connected in the case through bearings, a second connecting shaft is fixedly arranged between the two cross beam swing arms; a floating guide roller is connected between the two cross beam swing arms through bearings, a first air cylinder is installed in the machine box, the tail end of the first air cylinder is movably connected with the machine box through a rotating shaft, a connecting frame is installed at the output end of the first air cylinder, and a second connecting shaft penetrates through the connecting frame and is connected with the connecting frame through a bearing. According to the automatic winding machine, the rhythm of the whole production process is improved, the winding quality is greatly improved, the consistency and excellent quality of products are ensured, the situation of excessive stretching or insufficient tension of materials in the winding process is avoided through accurate tension control, the physical performance and quality of the materials are protected, and the labor intensity is reduced.

The utility model discloses an electrical equipment maintenance wire harness winding device with an adjustable winding space, and particularly relates to the technical field of wire harness winding, the electrical equipment maintenance wire harness winding device comprises a winding drum, a winding roller and a fastening assembly, the winding drum is made of a flexible rubber material, can extend and deform, and is fixed with an arc-shaped seat of the fastening assembly through a pin to ensure that the winding drum cannot be separated when being stressed; an arc-shaped rod, a limiting seat, a fastening spring and other parts in the fastening assembly achieve dynamic adjustment of the fastening force of the winding drum, the stability of the winding process is guaranteed, a worker enables a wire harness to penetrate through a communication window to be fixed to a winding roller, the winding roller rotates to drive the wire harness to be wound, along with the change of the winding amount, the flexible winding drum can automatically contract or expand, and the fastening assembly is synchronously adjusted; the winding drum and the wire harness are tightly attached all the time, and loosening and knotting are avoided. The wire harness winding device is high in self-adaptive attaching capacity, capable of coping with wire harnesses of different winding amounts and specifications, convenient to operate, good in environment adaptability and high in universality, and the efficiency and quality of winding the wire harnesses for maintenance of power equipment are improved.

The utility model discloses a film winding mechanism in the technical field of film winding, which comprises a base, a square groove is arranged on the base, two sliders are movably mounted in the square groove, a vertical plate and a hydraulic cylinder are respectively and fixedly mounted at the tops of the two sliders, a driving motor is fixedly mounted on the vertical plate, and the hydraulic cylinder is fixedly mounted on the driving motor. And an output shaft of the driving motor is connected with a rotating shaft through a coupling. Through the arrangement of the circular shaft, the connecting rod, the auxiliary roller and the rotating assembly, in the using process, a film is wound around the winding roller installed on the rotating shaft after passing through the bottom of the auxiliary roller, and when a worker needs to adjust the height of the auxiliary roller to reduce the tension force, the circular shaft can be rotated through the rotating assembly; and therefore, the connecting rod can drive the auxiliary roller to rotate, the height of the auxiliary roller can be adjusted, adjustment of tensile force is achieved, different winding requirements are met, the situation that a thin film is pulled and deformed due to too large tensile force is avoided, and the winding quality is improved.

This utility model relates to the field of roll forming machine technology, and discloses a roll forming machine for easy conveying of waterproof roll forming materials. It includes a frame, multiple conveyor rollers rotatably connected to the frame, and a conveyor belt sleeved between the multiple conveyor rollers. A pressing assembly, a cleaning assembly, and a winding assembly are sequentially installed on the frame along the conveying direction of the conveyor belt. The winding assembly includes a winding roller, mounting cylinders symmetrically installed on both sides of the frame, and clamping assemblies that hold both ends of the winding roller. A winding assembly that drives the mounting cylinders on both sides to rotate synchronously on the frame is installed at the bottom of the frame. This utility model has the following advantages and effects: it facilitates quick disassembly of the winding roller and improves the conveying and winding efficiency of waterproof roll forming materials.

The utility model discloses a woven cloth smoothing, compressing and winding device, and particularly relates to the field of woven cloth processing, which comprises a base and two first supports arranged on the base, a first roller piece for guiding and compressing woven cloth is arranged between the two first supports, a lower bearing piece and an upper pressure piece are arranged on one side of the first roller piece, and the lower bearing piece and the upper pressure piece are arranged up and down. Woven cloth penetrates through the space between the lower bearing piece and the upper pressure piece, the upper pressure piece is movably matched with the lower bearing piece in a lifting mode to flatten the woven cloth, a winding roller is arranged on the sides, away from the first roller piece, of the lower bearing piece and the upper pressure piece, and a movable adjusting roller is arranged above the winding roller. According to the automatic winding device, the whole process automation from guiding, pressing to winding of the woven cloth is achieved, high efficiency, intelligentization and reliability are achieved, the automatic winding device is suitable for continuous production of high-precision flexible materials in the fields of spinning, packaging and the like, and the winding quality and efficiency are remarkably improved.

The utility model relates to the technical field of plastic packaging bag processing discloses a kind of winding extrusion devices for plastic packaging bag processing, including machine body component, adjusting assembly and extrusion component.Machine body component is wound by winding drum packaging bag, and the extrusion roller of extrusion component is contacted with winding drum to extrude bubble in winding material, and the spring and extrusion block on its side connecting rod can adjust the contact force of extrusion roller and winding drum;Adjusting assembly moves extrusion component by electric cylinder, push-pull rod and other structures drive, adapt to the change of winding drum winding thickness.The device can stably keep extrusion force to efficiently remove bubble, and winding drum is replaced conveniently, improve winding quality and operation convenience, and be applicable to the winding processing of plastic packaging bag.

This utility model provides a multi-color overprinting precision positioning roller printing machine, belonging to the field of printing technology. It includes a printing machine body, an operating platform, and support legs fixedly installed at the bottom of the operating platform. The positioning mechanism includes an arc-shaped fixing block fixedly installed on the outer surface of the support legs, a sleeve movably connected to the inner surface of the arc-shaped fixing block, a roller sleeved on the outer surface of the sleeve, an inner support assembly disposed on the outer surface of the support legs for fixing the roller, and a drive assembly disposed on one side of the inner support assembly for rotating and retracting the printed paper sheet. This utility model, through the mutual cooperation of the various components of the positioning mechanism, ensures accurate positioning each time material is loaded. Furthermore, the cylinder drive achieves a uniform and stable clamping force distribution, avoiding roller displacement or tilting caused by inaccurate manual adjustment. It also ensures consistent tension and stable rotation speed of the material during winding, improving printing accuracy and winding quality.

The utility model relates to the technical field of wrapping film winding, in particular to a wrapping film pressing device which comprises a machining table, supporting legs which are symmetrically distributed are fixedly installed on the two sides of the bottom of the machining table, a fixing plate is fixedly installed behind one side of the top of the machining table, and a rail is fixedly installed on the other side of the top of the machining table. According to the wrapping film pressing device, through cooperative use of the machining table, the supporting legs, the fixing plate, the first servo motor, the winding frame, a positioning cylinder, a movable plate, a limiting rod, a supporting plate, an electric telescopic rod, a rail, an adjusting lead screw, a second servo motor and an adjusting block, when the wrapping film pressing device is used, the movable plate can be pushed through the electric telescopic rod; the cylinder core is clamped and fixed between the two winding frames, and the first servo motor drives the winding frames to rotate to complete winding of the winding film. And after winding is completed, the distance between the winding frames is increased through the electric telescopic rods again, limiting is relieved, and then the second servo motor is started.

This utility model relates to the field of anti-tangling technology for nylon spinning winding, and discloses an anti-tangling nylon spinning winding device, including a winding box, and further including: a winding disc rotatably connected to the front side of the winding box; two take-up rollers rotatably connected to the front side of the winding disc for rotating and winding the nylon yarn; and a guiding mechanism disposed on the outer wall of the winding box for guiding the nylon yarn to be wound and wound onto the outer wall of the take-up rollers. This utility model guides the nylon yarn through multiple guide cylinders, ensuring that the nylon yarn maintains a straight path during winding, avoiding tangling and knotting. The guide rollers abut against the outer wall of the nylon yarn, and a return spring pushes the arc-shaped sleeve to move, further tightening the nylon yarn, ensuring stability during winding and effectively preventing tangling.

The utility model discloses a kind of steel band winding decontamination devices, belong to steel band winding technical field, including winding roller, spraying component and dehumidification component, winding roller is rotatably installed on rack;Spraying component is set in the front of winding roller, including two upper and lower two sides of steel band for spraying respectively spraying frame;Dehumidification component is set between spraying component and winding roller, for the dehumidification of steel band after spraying.The two spraying frames designed in the utility model are located in the upper and lower two sides of steel band, can simultaneously spray cleaning agent and clean water to the upper and lower two sides of steel band, after completing steel band decontamination, promptly flush off cleaning agent, the water mark on the surface of steel band can be scraped off by the water removal scraper plate set, reduce the moisture residual amount on the surface of steel band, and drying machine can dry the upper and lower two sides of steel band, steel band completes decontamination and removes moisture completely and is wound by winding roller, effectively prevent steel band from rusting and other problems due to moisture residual in winding process, improve steel band winding quality.

The utility model belongs to the technical field of winding wrinkle prevention, and discloses an anti-wrinkle structure in a Teflon adhesive tape winding process, which comprises a support frame and an unwinding roller arranged at the upper end of the right side, a winding roller is arranged at the upper end of the left side of the support frame, a movable frame is arranged at the upper end of the middle of the support frame, and the lower end of the movable frame is connected with a tensioning roller. A partition plate is arranged outside the tensioning roller, a positioning frame is arranged at the upper end of the supporting frame, a threaded lead screw penetrates through the middle of the positioning frame, limiting sliding grooves are formed in the two sides of the supporting frame, limiting sliding blocks are arranged in the limiting sliding grooves, and the limiting sliding blocks are connected with the tensioning roller. According to the anti-wrinkle structure in the Teflon adhesive tape winding process, the adjustable tensioning roller is arranged, the height of the tensioning roller can be conveniently and properly adjusted according to winding use, the appropriate tightening degree of the Teflon adhesive tape is kept, meanwhile, a positioning structure is arranged, the winding moving path of the Teflon adhesive tape can be limited, the deviation condition of the Teflon adhesive tape is facilitated, and the winding quality of the Teflon adhesive tape is improved. And the winding quality is improved.

This utility model relates to the field of tape cutting technology and discloses a tape cutting guide device for a plastic box tape wrapping and sealing machine. It includes a base, an auxiliary bonding mechanism fixedly connected to the upper right side of the base, an auxiliary bonding mechanism fixedly connected to the upper front side of the auxiliary bonding mechanism, and a cutting component arranged on the upper rear side of the auxiliary bonding mechanism for cutting the tape. A mounting column is fixedly connected to the upper left side of the base, a sliding column is slidably connected inside the mounting column, a rack plate is fixedly connected to the right side of the sliding column, and a support plate is fixedly connected to the right rear side of the mounting column. In this utility model, through the cooperation of structures such as a second motor, a rotating disk, a first motor, gears, a rack plate, a sliding column, a support plate, a mounting ring, a rotating disk, a cylinder, and a cutting blade, the cutting guide device can cut the tape after it is fully wrapped around the plastic box, improving the wrapping quality and efficiency of the plastic box tape.

The invention discloses a continuous winding drum type drawing device, and relates to the technical field of copper wire drawing devices, the continuous winding drum type drawing device comprises a rack, the top of the rack is sequentially provided with a pay-off assembly, a multi-mold drawing assembly and a limiting assembly from left to right, and the pay-off assembly, the multi-mold drawing assembly and the limiting assembly are all installed on the upper surface of the rack through bolts; the multi-winding-drum drawing mechanism and the winding device are arranged on the upper surface of the rack; by arranging the adjustable wrap angle guide assembly, a driving motor drives a screw rod to rotate, so that a movable sliding block moves along the screw rod, the relative position between a first guide wheel and a second guide wheel is changed, a wrap angle formed by winding a copper wire around the two guide wheels is changed, and the contact length and friction force between a wire rod and the guide wheels are adjusted accordingly; therefore, accurate control over tension in the drawing process is achieved, and the problem of wire breakage or quality fluctuation caused by too large or too small tension is solved.

The utility model provides quick drying equipment for colored spun yarn production, which comprises a box body, two guide rollers are rotatably connected to the inside of one side of the box body, a plurality of rotating rollers are arranged on one sides of the guide rollers, a tension adjusting mechanism is arranged on one sides of the rotating rollers, and a yarn arranging mechanism is arranged on one side of the tension adjusting mechanism. The interior of the box body is rotationally connected with a winding roller, and a driving mechanism is arranged between the winding roller and the wire arranging mechanism. By using the tension adjusting mechanism, the adjusting motor drives the threaded rod to rotate, so that the fixing frame and the pressing roller move up and down, and the yarn tension degree can be flexibly and stably adjusted. Meanwhile, limiting rings are installed on the surfaces of the pressing roller and the rotating roller, and yarn deviation can be prevented. In the yarn conveying process, even if the rotating speeds or friction forces of all the rollers are different, the tension of the yarn can be adjusted in time, it is ensured that the tension of the yarn is uniform in the drying process, and therefore the drying effect and the winding quality are improved, and the stability of colored spun yarn production is guaranteed.

The utility model relates to thin film winding equipment technical field, especially in kind of self -gravity clamping membrane device, including opposite first side plate and second side plate, install winding roll between first side plate and second side plate, winding roll one end is connected with first side plate rotation, and winding roll other end stretches to the outside of second side plate, for with outside driving mechanism is connected, the oblique side of winding roll top is installed with self -gravity compression roller. The application is through self -gravity compression roller and utilizes self -gravity to exert pressure to film, effectively guaranteed the compactness and neatness of film winding, avoided film loose, wrinkle etc. problem, improved the winding quality of film, satisfied the requirement of subsequent use. The whole device structure is simple, and each component is reasonably designed, and convenient to install and disassemble. The gravity pressure mode of self -gravity compression roller does not need complex power system and control system, reduces the operation difficulty and maintenance cost.

The utility model provides a kind of electrode assembly, winding cell and battery, the electrode assembly of utility model embodiment includes pole piece, first diaphragm and second diaphragm, first pole piece has first winding beginning end;First diaphragm is located in one side of first pole piece, and second diaphragm is located in the other side of first pole piece;In the length direction of first pole piece, first diaphragm has first area beyond first winding beginning end, and second diaphragm has second area beyond first winding beginning end;First area is connected with second area.The electrode assembly of utility model embodiment is connected by first area and second area, can avoid that winding needle drives diaphragm to move in winding core drawing process, and then can avoid the problem that diaphragm is folded, even leaks out pole piece, so it can greatly improve the winding quality of cell and the performance of cell.