CN117712453A - Lamination device and battery production line - Google Patents
Lamination device and battery production line Download PDFInfo
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- CN117712453A CN117712453A CN202311790804.1A CN202311790804A CN117712453A CN 117712453 A CN117712453 A CN 117712453A CN 202311790804 A CN202311790804 A CN 202311790804A CN 117712453 A CN117712453 A CN 117712453A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
本发明提供了一种叠片装置及电池生产线,其中,叠片装置包括:叠片台,叠片台固定设置;正极片供料机构和负极片供料机构,分别适于对叠片台提供正极片和负极片;隔膜供料机构,隔膜供料机构固定设置,并适于对叠片台提供隔膜;铺膜机构,可移动地设置在叠片台的上方,铺膜机构适于抓取隔膜,并在叠片台的上方沿着隔膜供料机构的供料方向往复移动。上述结构中,一方面铺膜机构重量轻,能够实现高速往复移动,大大提高叠片效率高;另一方面叠片台和隔膜供料机构均固定设置,也即二者不进行平面的移动,从而减小叠片装置的整体占用空间。本发明的技术方案解决了现有技术中的叠片机叠片效率低、占用空间大的缺陷。
The invention provides a lamination device and a battery production line, wherein the lamination device includes: a lamination table, which is fixedly installed; a positive electrode sheet feeding mechanism and a negative electrode sheet feeding mechanism, respectively adapted to provide The positive electrode sheet and the negative electrode sheet; the separator feeding mechanism is fixedly arranged and is suitable for providing separators to the lamination table; the film laying mechanism is movably arranged above the lamination table, and the film laying mechanism is suitable for grabbing The diaphragm moves reciprocally above the stacking table along the feeding direction of the diaphragm feeding mechanism. In the above structure, on the one hand, the film laying mechanism is light in weight and can achieve high-speed reciprocating movement, which greatly improves the lamination efficiency; on the other hand, the lamination table and the diaphragm feeding mechanism are both fixed, that is, they do not move in the plane. This reduces the overall space occupied by the stacking device. The technical solution of the present invention solves the defects of low stacking efficiency and large space occupation of stacking machines in the prior art.
Description
技术领域Technical field
本发明涉及电池生产设备技术领域,具体涉及一种叠片装置及电池生产线。The invention relates to the technical field of battery production equipment, and in particular to a lamination device and a battery production line.
背景技术Background technique
叠片是电池生产中的重要工艺之一,叠片时需要将正极片、隔膜和负极片往复进行堆叠,从而形成电芯。叠片机是专门用于叠片工艺的设备,现有技术中的叠片机通常采用两种方式进行叠片,一种方式为叠片台不动,隔膜放卷机构往复移动;另一种为隔膜放卷机构不动,叠片台往复移动。在这两种叠片方式中,通过搬运机构循环将正极片和负极片放置在叠片台上,隔膜相对于叠片台往复移动,实现朝两个方向的铺设,最终形成“正极片-隔膜-负极片-隔膜-正极片”的电芯形式。Lamination is one of the important processes in battery production. During lamination, positive electrode sheets, separators and negative electrode sheets need to be stacked back and forth to form a battery core. The lamination machine is a piece of equipment specially used for the lamination process. Lamination machines in the prior art usually use two methods for lamination. One method is that the lamination table does not move and the diaphragm unwinding mechanism moves back and forth; the other method Because the diaphragm unwinding mechanism does not move, the stacking table moves back and forth. In these two lamination methods, the positive electrode sheets and negative electrode sheets are placed on the lamination table through the circulation of the transport mechanism, and the separator moves back and forth relative to the lamination table to achieve laying in two directions, ultimately forming a "positive electrode sheet-separator" -The cell form of "negative electrode sheet-separator-positive electrode sheet".
但是上述的叠片机中,一方面叠片台和隔膜放卷机构具有较大的重量,因此二者的往复移动速度受限,影响叠片效率;另一方面,叠片台或者隔膜放卷机构往复移动需要额外的运动空间,因此使得叠片机的占用空间较大。However, in the above-mentioned lamination machine, on the one hand, the lamination table and the diaphragm unwinding mechanism have a large weight, so the reciprocating speed of the two is limited, which affects the lamination efficiency; on the other hand, the lamination table or the diaphragm unwinding mechanism The reciprocating movement of the mechanism requires additional movement space, thus making the lamination machine occupy a larger space.
发明内容Contents of the invention
因此,本发明要解决的技术问题在于克服现有技术中的叠片机叠片效率低、占用空间大的缺陷,从而提供一种叠片装置及电池生产线。Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of low lamination efficiency and large space occupation of lamination machines in the prior art, thereby providing a lamination device and a battery production line.
为了解决上述问题,本发明提供了一种叠片装置,包括:叠片台,叠片台固定设置;正极片供料机构和负极片供料机构,分别适于对叠片台提供正极片和负极片;隔膜供料机构,隔膜供料机构固定设置,并适于对叠片台提供隔膜;铺膜机构,可移动地设置在叠片台的上方,铺膜机构适于抓取隔膜,并在叠片台的上方沿着隔膜供料机构的供料方向往复移动,在平面上,正极片供料机构和负极片供料机构的供料方向,与隔膜供料机构的供料方向垂直布置。In order to solve the above problems, the present invention provides a lamination device, which includes: a lamination table, which is fixedly installed; a positive electrode sheet feeding mechanism and a negative electrode sheet feeding mechanism, respectively adapted to provide positive electrode sheets and negative electrode sheets to the laminating table. negative electrode sheet; a separator feeding mechanism, the separator feeding mechanism is fixedly arranged and is suitable for providing diaphragms to the lamination table; a film laying mechanism is movably arranged above the lamination table, and the film laying mechanism is suitable for grabbing the separator, and It moves back and forth above the stacking table along the feeding direction of the diaphragm feeding mechanism. On the plane, the feeding directions of the positive electrode sheet feeding mechanism and the negative electrode sheet feeding mechanism are arranged perpendicularly to the feeding direction of the diaphragm feeding mechanism. .
可选地,隔膜供料机构包括第一隔膜供料机构和第二隔膜供料机构,第一隔膜供料机构和第二隔膜供料机构沿着第一方向分别位于叠片台的两侧,铺膜机构适于沿第一方向在第一隔膜供料机构和第二隔膜供料机构之间移动。Optionally, the diaphragm feeding mechanism includes a first diaphragm feeding mechanism and a second diaphragm feeding mechanism, and the first diaphragm feeding mechanism and the second diaphragm feeding mechanism are respectively located on both sides of the stacking table along the first direction, The film laying mechanism is adapted to move along the first direction between the first membrane feeding mechanism and the second membrane feeding mechanism.
可选地,铺膜机构包括支撑架,支撑架朝向第一隔膜供料机构的一侧设置有第一夹膜结构,支撑架朝向第二隔膜供料机构的一侧设置有第二夹膜结构,第一夹膜结构和第二夹膜结构均为可开合结构,第一夹膜结构适于抓取第一隔膜供料机构的隔膜,第二夹膜结构适于抓取第二隔膜供料机构的隔膜。Optionally, the film laying mechanism includes a support frame, a first sandwich structure is provided on one side of the support frame facing the first membrane supply mechanism, and a second sandwich structure is provided on one side of the support frame facing the second membrane supply mechanism. , both the first sandwich structure and the second sandwich structure are openable and closable structures, the first sandwich structure is suitable for grabbing the diaphragm of the first diaphragm supply mechanism, and the second sandwich structure is suitable for grabbing the second diaphragm supply mechanism. The diaphragm of the material mechanism.
可选地,第一隔膜供料机构上设置有第一切断结构,第二隔膜供料机构上设置有第二切断结构,铺膜机构移动至靠近第二隔膜供料机构时,第一切断结构切断隔膜,铺膜机构移动至靠近第一隔膜供料机构时,第二切断结构切断隔膜。Optionally, a first cutting structure is provided on the first diaphragm feeding mechanism, and a second cutting structure is provided on the second diaphragm feeding mechanism. When the film laying mechanism moves close to the second diaphragm feeding mechanism, the first cutting structure The diaphragm is cut off, and when the film laying mechanism moves close to the first diaphragm feeding mechanism, the second cutting structure cuts off the diaphragm.
可选地,隔膜供料机构沿着第一方向设置在叠片台的侧部,铺膜机构包括卷辊,卷辊上设置有抓膜结构,卷辊能够通过夹膜结构抓取隔膜,并带动隔膜沿两个方向绕卷辊的中心轴线转动,铺膜机构具有靠近隔膜供料机构的第一铺膜位置和远离隔膜供料机构的第二铺膜位置,铺膜机构由第一铺膜位置向第二铺膜位置移动的过程中,卷辊朝第一周向方向转动,以将隔膜卷绕在卷辊外进行缓存,铺膜机构由第二铺膜位置向第一铺膜位置移动的过程中,卷辊朝第二周向方向转动,以将隔膜释放。Optionally, the separator feeding mechanism is arranged on the side of the stacking table along the first direction. The film laying mechanism includes a roll roller. The roll roller is provided with a film grabbing structure. The roll roller can grab the separator through the film sandwich structure, and The diaphragm is driven to rotate around the central axis of the winding roller in two directions. The film laying mechanism has a first film laying position close to the diaphragm feeding mechanism and a second film laying position far away from the diaphragm feeding mechanism. The film laying mechanism is composed of the first film laying position. During the movement of the position to the second film laying position, the roll roller rotates in the first circumferential direction to wind the diaphragm outside the roll roller for buffering, and the film laying mechanism moves from the second film laying position to the first film laying position. During the process, the roll roller rotates in the second circumferential direction to release the diaphragm.
可选地,叠片装置还包括适于夹持隔膜的第一夹持结构和第二夹持结构,以及适于切断隔膜的第一切断结构和第二切断结构,第一夹持结构和第一切断结构设置在第一铺膜位置处,第二夹持结构和第二切断结构设置在第二铺膜位置处。Optionally, the stacking device further includes a first clamping structure and a second clamping structure adapted to clamp the diaphragm, and a first cutting structure and a second cutting structure adapted to cut off the diaphragm. The first clamping structure and the third A cutting structure is arranged at the first film laying position, and the second clamping structure and the second cutting structure are arranged at the second film laying position.
可选地,正极片供料机构和负极片供料机构沿着第二方向分别位于叠片台的两侧,正极片供料机构包括正极料带放卷机构和正极片制片机构,负极片供料机构包括负极料带放卷机构和负极片制片机构,正极料带放卷机构适于对正极片制片机构放卷正极料带,正极片制片机构适于将正极料带切割为多个正极片,并对叠片台提供正极片,负极料带放卷机构适于对负极片制片机构放卷负极料带,负极片制片机构适于将负极料带切割为多个负极片,并对叠片台提供负极片。Optionally, the positive electrode sheet feeding mechanism and the negative electrode sheet feeding mechanism are respectively located on both sides of the stacking table along the second direction. The positive electrode sheet feeding mechanism includes a positive electrode strip unwinding mechanism and a positive electrode sheet making mechanism. The negative electrode sheet The feeding mechanism includes a negative electrode strip unwinding mechanism and a negative electrode sheet making mechanism. The positive electrode strip unwinding mechanism is suitable for unwinding the positive electrode strip to the positive electrode sheet making mechanism. The positive electrode strip making mechanism is suitable for cutting the positive electrode strip into A plurality of positive electrode sheets are provided to the stacking table. The negative electrode strip unwinding mechanism is suitable for unwinding the negative electrode strip to the negative electrode sheet making mechanism. The negative electrode strip making mechanism is suitable for cutting the negative electrode strip into multiple negative electrodes. sheets, and provide negative electrode sheets to the lamination table.
可选地,正极片制片机构和负极片制片机构均包括:固定台;滑动切割台,可滑动地设置在固定台上,滑动切割台适于接收正极料带或者负极料带,并使正极料带或负极料带与滑动切割台相对于固定台同步滑动,滑动切割台具有第一位置和第二位置;切割结构,固定设置在固定台的上方,其中,滑动切割台在由第一位置移动至第二位置的过程中,滑动切割台带动正极料带或负极料带通过切割结构,切割结构将正极料带或负极料带切割为多个正极片或者多个负极片。Optionally, both the positive electrode sheet making mechanism and the negative electrode sheet making mechanism include: a fixed table; a sliding cutting table, slidably disposed on the fixed table, the sliding cutting table is adapted to receive the positive electrode material strip or the negative electrode material strip, and make The positive electrode material belt or the negative electrode material belt and the sliding cutting table slide synchronously relative to the fixed table. The sliding cutting table has a first position and a second position; the cutting structure is fixedly arranged above the fixed table, wherein the sliding cutting table is moved by the first position. When the position is moved to the second position, the sliding cutting table drives the positive electrode material belt or the negative electrode material belt through the cutting structure, and the cutting structure cuts the positive electrode material belt or the negative electrode material belt into multiple positive electrode sheets or multiple negative electrode sheets.
可选地,固定台上设置有吸附结构,滑动切割台上设置有吸附孔,滑动切割台在由第一位置移动至第二位置的过程中,滑动切割台通过吸附结构。Optionally, an adsorption structure is provided on the fixed table, and an adsorption hole is provided on the sliding cutting table. When the sliding cutting table moves from the first position to the second position, the sliding cutting table passes through the adsorption structure.
可选地,正极片制片机构和负极片制片机构均包括:固定台;滑动切割台,可滑动地设置在固定台上,滑动切割台适于接收正极料带或者负极料带,并使正极料带或负极料带与滑动切割台相对于固定台同步滑动,滑动切割台具有第一位置和第二位置;切割结构,可移动地设置在固定台的上方,其中,滑动切割台在由第一位置移动至第二位置后,切割结构沿着正极料带或者负极料带的延伸方向移动,并将正极料带或负极料带切割为多个正极片或者多个负极片。Optionally, both the positive electrode sheet making mechanism and the negative electrode sheet making mechanism include: a fixed table; a sliding cutting table, slidably disposed on the fixed table, the sliding cutting table is adapted to receive the positive electrode material strip or the negative electrode material strip, and make The positive electrode material belt or the negative electrode material belt and the sliding cutting table slide synchronously relative to the fixed table, and the sliding cutting table has a first position and a second position; the cutting structure is movably arranged above the fixed table, wherein the sliding cutting table is moved by After the first position moves to the second position, the cutting structure moves along the extension direction of the positive electrode material belt or the negative electrode material belt, and cuts the positive electrode material belt or the negative electrode material belt into multiple positive electrode sheets or multiple negative electrode sheets.
可选地,叠片装置还包括送料结构,送料结构适于输送正极料带或者负极料带,滑动切割台的端部设置有夹料结构,滑动切割台处于第一位置时,夹料结构位于送料结构的前侧,并且夹料结构适于夹取送料结构输送的正极料带或者负极料带。Optionally, the stacking device further includes a feeding structure, which is suitable for transporting positive electrode material strips or negative electrode material strips. A clamping structure is provided at the end of the sliding cutting table. When the sliding cutting table is in the first position, the clamping structure is located The front side of the feeding structure, and the clamping structure is suitable for clamping the positive electrode material belt or the negative electrode material belt conveyed by the feeding structure.
可选地,正极片制片机构和负极片制片机构均包括:固定台,固定台的端部设置有夹料结构;送料结构,可滑动地设置在固定台上,送料结构适于输送正极料带或者负极料带,送料结构具有第一位置和第二位置;切割结构,可移动地设置在固定台的上方,其中,送料结构由第一位置移动至第二位置后,夹料结构位于送料结构的前侧并夹取送料结构输送的正极料带或者负极料带,然后送料结构回退至第二位置后,切割结构沿着正极料带或者负极料带的延伸方向移动,并将正极料带或负极料带切割为多个正极片或者多个负极片。Optionally, both the positive electrode sheet making mechanism and the negative electrode sheet making mechanism include: a fixed platform, the end of the fixed platform is provided with a clamping structure; and a feeding structure is slidably provided on the fixed platform, and the feeding structure is suitable for transporting the positive electrode. Material belt or negative electrode material belt, the feeding structure has a first position and a second position; the cutting structure is movably arranged above the fixed table, wherein, after the feeding structure moves from the first position to the second position, the clamping structure is located The front side of the feeding structure clamps the positive electrode material belt or negative electrode material belt conveyed by the feeding structure, and then after the feeding structure returns to the second position, the cutting structure moves along the extension direction of the positive electrode material belt or negative electrode material belt, and cuts the positive electrode material The material tape or negative electrode material tape is cut into multiple positive electrode pieces or multiple negative electrode pieces.
可选地,固定台上设置有除尘结构,除尘结构设置在切割结构的下方。Optionally, a dust removal structure is provided on the fixed platform, and the dust removal structure is provided below the cutting structure.
可选地,切割结构包括激光器。Optionally, the cutting structure includes a laser.
可选地,叠片装置还包括上料搬运机构,上料搬运机构设置在叠片台的上方,并且上料搬运机构适于在正极片供料机构和负极片供料机构之间往复移动,以将正极片搬运至叠片台上,或者将负极片搬运至叠片台上。Optionally, the stacking device further includes a loading and transporting mechanism, the loading and transporting mechanism is arranged above the stacking table, and the loading and transporting mechanism is adapted to move back and forth between the positive electrode sheet feeding mechanism and the negative electrode sheet feeding mechanism, To transport the positive electrode sheet to the lamination table, or to transport the negative electrode sheet to the lamination table.
可选地,上料搬运机构包括安装架,以及安装在安装架上的第一抓取结构和第二抓取结构,安装架具有第一搬运位置和第二搬运位置,安装架处于第一搬运位置时,第一抓取结构位于正极片供料机构的上方,第二抓取结构位于叠片台的上方,安装架处于第二搬运位置时,第一抓取结构位于叠片台的上方,第二抓取结构位于负极片供料机构的上方。Optionally, the loading and transporting mechanism includes a mounting frame, and a first grabbing structure and a second grabbing structure installed on the mounting frame. The mounting frame has a first carrying position and a second carrying position, and the mounting frame is in the first carrying position. When the mounting frame is in the second transport position, the first grabbing structure is located above the stacking table. The second grabbing structure is located above the negative electrode sheet feeding mechanism.
可选地,第一抓取结构和第二抓取结构均包括多个依次设置的吸附板,上料搬运机构还包括变距结构,变距结构设置在安装架上,并适于改变相邻的吸附板之间的距离。Optionally, both the first grabbing structure and the second grabbing structure include a plurality of adsorption plates arranged in sequence, and the loading and transporting mechanism also includes a pitch-changing structure. The pitch-changing structure is arranged on the mounting frame and is suitable for changing adjacent positions. The distance between the adsorption plates.
可选地,叠片装置还包括:下料搬运机构,适于将叠片后的电芯搬运下料;热切机构、贴胶机构和热压机构,依次设置在下料搬运机构的移动路径上。Optionally, the stacking device further includes: a unloading and conveying mechanism, which is suitable for conveying and unloading the laminated electric cores; a cutting mechanism, a gluing mechanism and a hot pressing mechanism, which are sequentially arranged on the moving path of the unloading and conveying mechanism.
本发明还提供了一种电池生产线,包括上述的叠片装置。The invention also provides a battery production line, including the above-mentioned laminating device.
本发明具有以下优点:The invention has the following advantages:
利用本发明的技术方案,叠片装置进行叠片时,正极片供料机构对叠片台提供正极片,铺膜机构抓取隔膜供料机构提供的隔膜沿一个方向进行隔膜铺设,然后负极片供料机构对叠片台提供负极片,铺膜机构沿另一个相反的方向进行隔膜铺设,也即铺膜机构进行往复隔膜铺设,从而实现正片、隔膜和负极片的往复叠片。上述结构中,一方面铺膜机构重量轻,能够实现高速往复移动,大大提高叠片效率高;另一方面叠片台和隔膜供料机构均固定设置,也即二者不进行平面的移动,从而减小叠片装置的整体占用空间。因此本发明的技术方案解决了现有技术中的叠片机叠片效率低、占用空间大的缺陷。Utilizing the technical solution of the present invention, when the lamination device performs lamination, the positive electrode sheet supply mechanism provides positive electrode sheets to the lamination table, and the film laying mechanism grabs the separator provided by the separator feeding mechanism to lay the separator in one direction, and then the negative electrode sheet The feeding mechanism provides negative electrode sheets to the lamination table, and the film laying mechanism lays the separator in the opposite direction, that is, the film laying mechanism performs reciprocating separator laying, thereby realizing reciprocating lamination of positive sheets, separators, and negative electrode sheets. In the above structure, on the one hand, the film laying mechanism is light in weight and can achieve high-speed reciprocating movement, which greatly improves the lamination efficiency; on the other hand, the lamination table and the diaphragm feeding mechanism are both fixed, that is, they do not move in the plane. This reduces the overall space occupied by the stacking device. Therefore, the technical solution of the present invention solves the defects of low stacking efficiency and large space occupation of stacking machines in the prior art.
附图说明Description of the drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案,下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description The drawings illustrate some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.
图1示出了本发明的叠片装置的实施例的各个机构的分布示意图;Figure 1 shows a schematic distribution diagram of various mechanisms of the embodiment of the lamination device of the present invention;
图2示出了图1中叠片装置的叠片台、隔膜供料机构、铺膜机构和上料搬运机构的分布示意图;Figure 2 shows a schematic diagram of the distribution of the lamination table, diaphragm feeding mechanism, film laying mechanism and loading and transporting mechanism of the laminating device in Figure 1;
图3示出了图1中叠片设备的叠片台、隔膜供料机构和铺膜机构的结构示意图;Figure 3 shows a schematic structural diagram of the lamination table, diaphragm feeding mechanism and film laying mechanism of the lamination equipment in Figure 1;
图4示出了图1中叠片设备的隔膜供料机构和铺膜机构的结构示意图;Figure 4 shows a schematic structural diagram of the diaphragm feeding mechanism and film laying mechanism of the lamination equipment in Figure 1;
图5示出了图5中膜供料机构和铺膜机构的一侧的立体示意图;Figure 5 shows a perspective view of one side of the film feeding mechanism and film laying mechanism in Figure 5;
图6示出了图1中叠片设备的铺膜机构的结构示意图;Figure 6 shows a schematic structural diagram of the film laying mechanism of the lamination equipment in Figure 1;
图7示出了图1中的叠片装置的隔膜供料机构和铺膜机构的另一种实施例的结构示意图;Figure 7 shows a schematic structural diagram of another embodiment of the separator feeding mechanism and film laying mechanism of the stacking device in Figure 1;
图8示出了图7中铺膜机构由第一铺膜位置移动至第二铺膜位置的示意图;Figure 8 shows a schematic diagram of the film laying mechanism in Figure 7 moving from the first film laying position to the second film laying position;
图9示出了图7中第一切断结构和第二切断结构切断隔膜的结构示意图;Figure 9 shows a schematic structural diagram of the first cutting structure and the second cutting structure cutting the diaphragm in Figure 7;
图10示出了图7中铺膜机构处于第二铺膜位置的示意图;Figure 10 shows a schematic diagram of the film laying mechanism in Figure 7 in the second film laying position;
图11示出了图7中铺膜机构由第二铺膜位置移动至第一铺膜位置的示意图;Figure 11 shows a schematic diagram of the film laying mechanism in Figure 7 moving from the second film laying position to the first film laying position;
图12示出了包括图7的隔膜供料机构和铺膜机构的叠片装置的另一种实施例的各个机构的分布示意图;Figure 12 shows a schematic distribution diagram of each mechanism of another embodiment of the lamination device including the separator feeding mechanism and film laying mechanism of Figure 7;
图13示出了图1中叠片设备的正极片制片机构或者负极片制片机构的滑动切割台处于第一位置时的结构示意图;Figure 13 shows a schematic structural diagram of the positive plate making mechanism or the sliding cutting table of the negative plate making mechanism of the lamination equipment in Figure 1 when it is in the first position;
图14示出了图13中A处放大示意图;Figure 14 shows an enlarged schematic diagram of position A in Figure 13;
图15示出了图1中叠片设备的正极片制片机构或者负极片制片机构的滑动切割台处于第二位置时的结构示意图;Figure 15 shows a schematic structural diagram of the positive electrode sheet making mechanism or the sliding cutting table of the negative electrode sheet making mechanism of the lamination equipment in Figure 1 when it is in the second position;
图16示出了图15中B处放大示意图;Figure 16 shows an enlarged schematic view of B in Figure 15;
图17示出了图1中叠片设备的正极片制片机构或者负极片制片机构的滑动切割台的结构示意图;Figure 17 shows a schematic structural diagram of the sliding cutting table of the positive electrode sheet making mechanism or the negative electrode sheet making mechanism of the lamination equipment in Figure 1;
图18示出了图1中叠片设备的正极片制片机构或者负极片制片机构的另一种实施例的结构示意图;Figure 18 shows a schematic structural diagram of another embodiment of the positive electrode sheet production mechanism or the negative electrode sheet production mechanism of the lamination equipment in Figure 1;
图19示出了图18中C处放大示意图;Figure 19 shows an enlarged schematic view of C in Figure 18;
图20示出了图18中D处放大示意图;Figure 20 shows an enlarged schematic diagram of D in Figure 18;
图21示出了图18中送料结构将极片料带铺设在固定台上的过程示意图;Figure 21 shows a schematic diagram of the process of laying the pole piece material strip on the fixed platform by the feeding structure in Figure 18;
图22示出了图1中叠片设备的正极料带放卷机构和负极料带放卷机构的结构示意图;Figure 22 shows a schematic structural diagram of the positive electrode tape unwinding mechanism and the negative electrode material tape unwinding mechanism of the lamination equipment in Figure 1;
图23示出了图1中叠片设备的上料搬运机构的结构示意图;Figure 23 shows a schematic structural diagram of the loading and handling mechanism of the lamination equipment in Figure 1;
图24示出了图23中上料搬运机构的吸附板的结构示意图;Figure 24 shows a schematic structural diagram of the adsorption plate of the material loading and transportation mechanism in Figure 23;
图25示出了图1中叠片设备的下料搬运机构的结构示意图。FIG. 25 shows a schematic structural diagram of the unloading and conveying mechanism of the lamination equipment in FIG. 1 .
附图标记说明:Explanation of reference symbols:
10、叠片台;20、正极片供料机构;21、正极料带放卷机构;22、正极片制片机构;30、负极片供料机构;31、负极料带放卷机构;32、负极片制片机构;40、隔膜供料机构;41、第一隔膜供料机构;42、第二隔膜供料机构;50、铺膜机构;51、支撑架;52、第一夹膜结构;53、第二夹膜结构;54、夹膜结构;55、第一夹持结构;56、第二夹持结构;57、第一切断结构;58、第二切断结构;61、固定台;62、滑动切割台;621、吸附孔;63、切割结构;64、吸附结构;65、送料结构;66、夹料结构;67、除尘结构;70、上料搬运机构;71、安装架;72、第一抓取结构;73、第二抓取结构;74、吸附板;75、变距结构;90、下料搬运机构;100、热压机构;110、热切机构;120、贴胶机构。10. Laminating table; 20. Positive electrode sheet feeding mechanism; 21. Positive electrode strip unwinding mechanism; 22. Positive electrode sheet making mechanism; 30. Negative electrode sheet feeding mechanism; 31. Negative electrode strip unwinding mechanism; 32. Negative sheet making mechanism; 40. Separator feeding mechanism; 41. First separator feeding mechanism; 42. Second separator feeding mechanism; 50. Film laying mechanism; 51. Support frame; 52. First sandwich structure; 53. Second sandwich structure; 54. Sandwich structure; 55. First clamping structure; 56. Second clamping structure; 57. First cutting structure; 58. Second cutting structure; 61. Fixed platform; 62 , Sliding cutting table; 621. Adsorption hole; 63. Cutting structure; 64. Adsorption structure; 65. Feeding structure; 66. Clamping structure; 67. Dust removal structure; 70. Feeding and transportation mechanism; 71. Installation frame; 72. First grabbing structure; 73. Second grabbing structure; 74. Adsorption plate; 75. Variable distance structure; 90. Blanking and conveying mechanism; 100. Hot pressing mechanism; 110. Cutting mechanism; 120. Gluing mechanism.
具体实施方式Detailed ways
下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations of the invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
此外,下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
如图1所示,根据本申请的叠片装置的实施例包括叠片台10、正极片供料机构20和负极片供料机构30、隔膜供料机构40和铺膜机构50。其中,叠片台10固定设置。正极片供料机构20和负极片供料机构30分别适于对叠片台10提供正极片和负极片。隔膜供料机构40固定设置,并适于对叠片台10提供隔膜。铺膜机构50可移动地设置在叠片台10的上方,铺膜机构50适于抓取隔膜,并在叠片台10的上方沿着隔膜供料机构40的供料方向往复移动。并且平面上,正极片供料机构20和负极片供料机构30的供料方向,与隔膜供料机构40的供料方向垂直布置。As shown in FIG. 1 , an embodiment of the lamination device according to the present application includes a lamination table 10 , a positive electrode sheet feeding mechanism 20 and a negative electrode sheet feeding mechanism 30 , a separator feeding mechanism 40 and a film laying mechanism 50 . Among them, the stacking table 10 is fixedly installed. The positive electrode sheet feeding mechanism 20 and the negative electrode sheet feeding mechanism 30 are respectively adapted to provide positive electrode sheets and negative electrode sheets to the stacking table 10 . The diaphragm feeding mechanism 40 is fixedly arranged and is adapted to provide diaphragms to the stacking table 10 . The film laying mechanism 50 is movably disposed above the laminating table 10 . The film laying mechanism 50 is adapted to grab the diaphragm and move reciprocally above the laminating table 10 along the feeding direction of the diaphragm feeding mechanism 40 . Furthermore, on a plane, the feeding directions of the positive electrode sheet feeding mechanism 20 and the negative electrode sheet feeding mechanism 30 are arranged perpendicularly to the feeding direction of the separator feeding mechanism 40 .
利用本实施例的技术方案,叠片装置进行叠片时,正极片供料机构20对叠片台10提供正极片,铺膜机构50抓取隔膜供料机构40提供的隔膜沿一个方向进行隔膜铺设,然后负极片供料机构30对叠片台10提供负极片,铺膜机构50沿另一个相反的方向进行隔膜铺设,也即铺膜机构50进行往复隔膜铺设,从而实现正片、隔膜和负极片的往复叠片。上述结构中,一方面铺膜机构50重量轻,能够实现高速往复移动,大大提高叠片效率高;另一方面叠片台10和隔膜供料机构40均固定设置,也即二者不进行平面的移动,从而减小叠片装置的整体占用空间。因此本实施例的技术方案解决了现有技术中的叠片机叠片效率低、占用空间大的缺陷。Using the technical solution of this embodiment, when the lamination device performs lamination, the positive electrode sheet supply mechanism 20 provides positive electrode sheets to the lamination table 10, and the film laying mechanism 50 grabs the separator provided by the separator supply mechanism 40 and performs diaphragm separation in one direction. Laying, then the negative electrode sheet feeding mechanism 30 provides negative electrode sheets to the stacking table 10, and the film laying mechanism 50 lays the separator in the other opposite direction, that is, the film laying mechanism 50 performs reciprocating separator laying, thereby realizing the positive sheet, separator and negative electrode. Reciprocating lamination of sheets. In the above structure, on the one hand, the film laying mechanism 50 is light in weight and can achieve high-speed reciprocating movement, which greatly improves the lamination efficiency; on the other hand, the lamination table 10 and the diaphragm feeding mechanism 40 are both fixedly arranged, that is, they do not carry out planar operations. movement, thereby reducing the overall space occupied by the stacking device. Therefore, the technical solution of this embodiment solves the defects of low stacking efficiency and large space occupation of stacking machines in the prior art.
需要说明的是,为了便于说明本实施例的叠片装置中各个机构的设置位置,以下规定第一方向为图1和图2中的左右方向,第二方向为图1和图2中的上下方向。因此上述的隔膜供料机构40的供料方向指的是第一方向。It should be noted that, in order to facilitate the explanation of the installation position of each mechanism in the stacking device of this embodiment, the first direction is defined as the left and right direction in Figures 1 and 2, and the second direction is the up and down direction in Figures 1 and 2. direction. Therefore, the feeding direction of the above-mentioned diaphragm feeding mechanism 40 refers to the first direction.
为了更好的理解本实施例的叠片装置的工作过程,以下以电芯的加工工艺流程为路径,来介绍本申请的叠片装置的各个机构。In order to better understand the working process of the lamination device of this embodiment, each mechanism of the lamination device of this application will be introduced below by taking the processing process flow of the battery cell as a path.
一、正负极料带放卷1. Unwinding the positive and negative electrode tapes
如图1和图22所示,在本实施例的技术方案中,正极片供料机构20包括正极料带放卷机构21,负极片供料机构30包括负极料带放卷机构31。正极料带放卷机构21适于对正极片制片机构22放卷正极料带,负极料带放卷机构31适于对负极片制片机构32放卷负极料带。As shown in FIGS. 1 and 22 , in the technical solution of this embodiment, the positive electrode sheet feeding mechanism 20 includes a positive electrode tape unwinding mechanism 21 , and the negative electrode sheet feeding mechanism 30 includes a negative electrode tape unwinding mechanism 31 . The positive electrode strip unwinding mechanism 21 is suitable for unwinding the positive electrode strip to the positive electrode sheet making mechanism 22 , and the negative electrode strip unwinding mechanism 31 is suitable for unwinding the negative electrode strip to the negative electrode piece making mechanism 32 .
如图22所示,正极料带放卷机构21用于将卷状的正极料带放卷为带状物料,以便于后续进行加工。正极料带包括正极箔材以及涂覆在正极箔材上的正极浆料,正极箔材的一侧不涂覆正极浆料,从而形成正极耳切割区(空箔区)。As shown in FIG. 22 , the positive electrode tape unwinding mechanism 21 is used to unwind the rolled positive electrode tape into a strip-shaped material to facilitate subsequent processing. The positive electrode strip includes a positive electrode foil and a positive electrode slurry coated on the positive electrode foil. One side of the positive electrode foil is not coated with the positive electrode slurry, thereby forming a positive electrode lug cutting area (empty foil area).
如图22所示,负极料带放卷机构31用于将卷状的负极料带放卷为带状物料,以便于后续进行加工。负极料带包括负极箔材以及涂覆在负极箔材上的负极浆料,负极箔材的一侧不涂覆正极浆料,从而形成负极耳切割区(空箔区)。As shown in FIG. 22 , the negative electrode tape unwinding mechanism 31 is used to unwind the rolled negative electrode tape into a strip-shaped material to facilitate subsequent processing. The negative electrode material strip includes a negative electrode foil and a negative electrode slurry coated on the negative electrode foil. One side of the negative electrode foil is not coated with the positive electrode slurry, thereby forming a negative electrode ear cutting area (empty foil area).
当然,在一些未示出的实施方式中,叠片装置也可以不包括正极料带放卷机构21和负极料带放卷机构31。在这种未示出的实施方式中,可以通过外部放卷机构将正极料带和负极料带放卷后,直接将带状物料通入至叠片装置内。Of course, in some not-shown embodiments, the stacking device may not include the positive electrode tape unwinding mechanism 21 and the negative electrode material tape unwinding mechanism 31 . In this embodiment (not shown), the positive electrode material tape and the negative electrode material tape can be unrolled through an external unwinding mechanism, and then the strip-shaped material can be directly introduced into the lamination device.
如图1所示,本实施例中的正极料带放卷机构21和负极料带放卷机构31的设置位置为:在沿着第一方向上,正极料带放卷机构21和负极料带放卷机构31位于叠片台10的一侧,具体而言,二者均位于叠片台10的图1所示的左侧位置。再沿着第二方向上,正极料带放卷机构21和负极料带放卷机构31分别位于叠片台10的两侧,具体而言,正极料带放卷机构21位于叠片台10的图1所示的上侧位置,负极料带放卷机构31位于叠片台10的图1所示的下侧位置(当然,二者的上下位置可以对调)。并且进一步地,在沿着第二方向上,正极料带放卷机构21和负极料带放卷机构31二者相对设置。As shown in FIG. 1 , the positive electrode material strip unwinding mechanism 21 and the negative electrode material strip unwinding mechanism 31 in this embodiment are arranged as follows: along the first direction, the positive electrode material strip unwinding mechanism 21 and the negative electrode material strip The unwinding mechanism 31 is located on one side of the laminating table 10 , specifically, both are located on the left side of the laminating table 10 as shown in FIG. 1 . Along the second direction, the positive electrode tape unwinding mechanism 21 and the negative electrode material tape unwinding mechanism 31 are respectively located on both sides of the lamination table 10 . Specifically, the positive electrode material tape unwinding mechanism 21 is located on the side of the lamination table 10 . In the upper position shown in FIG. 1 , the negative electrode tape unwinding mechanism 31 is located in the lower position shown in FIG. 1 of the stacking table 10 (of course, the upper and lower positions of the two can be reversed). Furthermore, along the second direction, the positive electrode tape unwinding mechanism 21 and the negative electrode tape unwinding mechanism 31 are arranged opposite to each other.
如图22所示,正极料带放卷机构21和负极料带放卷机构31的结构大致相同,二者均包括立板,立板上可以设置主动辊、过辊、张紧辊、纠偏机构等等。从图22还可以看到,正极料带放卷机构21的立板和负极料带放卷机构31的立板相对设置,正极料带放卷机构21和负极料带放卷机构31大致呈镜像对称布置。As shown in Figure 22, the structures of the positive electrode tape unwinding mechanism 21 and the negative electrode material tape unwinding mechanism 31 are roughly the same. Both include vertical plates. On the vertical plates, driving rollers, passing rollers, tension rollers, and correction mechanisms can be installed. etc. It can also be seen from Figure 22 that the vertical plate of the positive electrode tape unwinding mechanism 21 and the vertical plate of the negative electrode tape unwinding mechanism 31 are arranged oppositely, and the positive electrode tape unwinding mechanism 21 and the negative electrode tape unwinding mechanism 31 are roughly mirror images. Symmetrical arrangement.
二、正负极片制片2. Production of positive and negative electrode plates
在正极料带和负极料带放卷完成后,需要将正极料带加工为正极片,以及将负极料带加工为负极片。因此本实施例中,正极片供料机构20还包括正极片制片机构22,负极片供料机构30还包括负极片制片机构32。正极片制片机构22适于将正极料带切割为多个正极片,并对叠片台10提供正极片。负极片制片机构32适于将负极料带切割为多个负极片,并对叠片台10提供负极片。After the positive electrode material strip and the negative electrode material strip are unrolled, the positive electrode material strip needs to be processed into positive electrode sheets, and the negative electrode material strip needs to be processed into negative electrode sheets. Therefore, in this embodiment, the positive electrode sheet feeding mechanism 20 also includes a positive electrode sheet forming mechanism 22 , and the negative electrode sheet feeding mechanism 30 further includes a negative electrode sheet forming mechanism 32 . The positive electrode sheet making mechanism 22 is suitable for cutting the positive electrode strip into multiple positive electrode sheets and providing the positive electrode sheets to the stacking table 10 . The negative electrode sheet making mechanism 32 is suitable for cutting the negative electrode material strip into multiple negative electrode sheets and providing the negative electrode sheets to the stacking table 10 .
如图1所示,正极料带放卷机构21放卷的正极料带通入至正极片制片机构22后,正极片制片机构22将正极料带切割为多个正极片,正极片用于后续的叠片。负极料带放卷机构31放卷的负极料带通入至负极片制片机构32后,负极片制片机构32将负极料带切割为多个负极片,负极片用于后续的叠片。As shown in FIG. 1 , after the positive electrode tape unrolled by the positive electrode tape unwinding mechanism 21 passes into the positive electrode piece making mechanism 22 , the positive electrode piece making mechanism 22 cuts the positive electrode strip into multiple positive electrode pieces. for subsequent lamination. After the negative electrode strip unrolled by the negative electrode strip unwinding mechanism 31 passes into the negative electrode piece making mechanism 32, the negative electrode piece making mechanism 32 cuts the negative electrode strip into multiple negative electrode pieces, and the negative electrode pieces are used for subsequent lamination.
如图1所示,正极片制片机构22和负极片制片机构32的设置位置为:在沿着第一方向上,正极片制片机构22与正极料带放卷机构21相邻设置,具体而言,正极片制片机构22位于正极料带放卷机构21的图1所示的右侧位置。在沿着第一方向上,负极片制片机构32与负极料带放卷机构31相邻设置,具体而言,负极片制片机构32位于负极料带放卷机构31的图1所示的右侧位置。在沿着第二方向上,正极片制片机构22和负极片制片机构32分别位于叠片台10的两侧,具体而言,正极片制片机构22位于叠片台10的图1所示的正上方位置,负极片制片机构32位于叠片台10的图1所示的正下方位置。As shown in FIG. 1 , the positive electrode sheet making mechanism 22 and the negative electrode sheet making mechanism 32 are arranged in such a way that along the first direction, the positive electrode sheet making mechanism 22 is arranged adjacent to the positive electrode strip unwinding mechanism 21 , Specifically, the positive electrode sheet making mechanism 22 is located on the right side of the positive electrode strip unwinding mechanism 21 as shown in FIG. 1 . Along the first direction, the negative electrode sheet making mechanism 32 is disposed adjacent to the negative electrode strip unwinding mechanism 31. Specifically, the negative electrode sheet making mechanism 32 is located at the side of the negative electrode strip unwinding mechanism 31 as shown in FIG. 1 right position. Along the second direction, the positive electrode sheet production mechanism 22 and the negative electrode sheet production mechanism 32 are respectively located on both sides of the lamination table 10. Specifically, the positive electrode sheet production mechanism 22 is located on the lamination table 10 in Figure 1. The negative electrode sheet making mechanism 32 is located at the position directly below the stacking table 10 as shown in FIG. 1 .
进一步地,由于正极片制片机构22和负极片制片机构32的结构基本相同,因此以下一同介绍二者的结构。并且本实施例中正极片制片机构22和负极片制片机构32包括三个实施例,以下依次详细介绍:Furthermore, since the structures of the positive electrode sheet producing mechanism 22 and the negative electrode sheet producing mechanism 32 are basically the same, the structures of both are introduced below. In addition, in this embodiment, the positive electrode sheet producing mechanism 22 and the negative electrode sheet producing mechanism 32 include three embodiments, which are introduced in detail below:
实施例一Embodiment 1
如图13至图17所示,在本实施例的技术方案中,正极片制片机构22和负极片制片机构32均包括固定台61、滑动切割台62和切割结构63。其中,滑动切割台62可滑动地设置在固定台61上,滑动切割台62适于接收正极料带或者负极料带,并使正极料带或负极料带与滑动切割台62相对于固定台61同步滑动。切割结构63设置在固定台61的上方。As shown in FIGS. 13 to 17 , in the technical solution of this embodiment, both the positive electrode sheet producing mechanism 22 and the negative electrode sheet producing mechanism 32 include a fixed table 61 , a sliding cutting table 62 and a cutting structure 63 . Among them, the sliding cutting table 62 is slidably disposed on the fixed table 61. The sliding cutting table 62 is suitable for receiving the positive electrode material strip or the negative electrode material strip, and making the positive electrode material strip or the negative electrode material strip and the sliding cutting table 62 relative to the fixed table 61. Slide in sync. The cutting structure 63 is arranged above the fixing table 61 .
进一步地,滑动切割台62具有第一位置和第二位置。滑动切割台62在由第一位置移动至第二位置的过程中,滑动切割台62带动正极料带或负极料带通过切割结构63,切割结构63将正极料带或负极料带切割为多个正极片或者多个负极片。Further, the sliding cutting table 62 has a first position and a second position. When the sliding cutting table 62 moves from the first position to the second position, the sliding cutting table 62 drives the positive electrode material strip or the negative electrode material strip to pass through the cutting structure 63 , and the cutting structure 63 cuts the positive electrode material strip or the negative electrode material strip into multiple pieces. Positive electrode piece or multiple negative electrode pieces.
具体而言,本实施例中固定台61为固定设置,也即固定台61不进行移动。固定台61呈长条状结构,并且固定台61沿着第一方向延伸。滑动切割台62也为长条状,并且滑动切割台62也沿着第一方向延伸。滑动切割台62可滑动地设置在固定台61上,并且固定台61的长度要大于滑动切割台62,以保证滑动切割台62处于第一位置或者第二位置时,滑动切割台62不脱出固定台61。Specifically, in this embodiment, the fixed platform 61 is fixedly installed, that is, the fixed platform 61 does not move. The fixing platform 61 has a long strip structure, and the fixing platform 61 extends along the first direction. The sliding cutting table 62 is also elongated, and the sliding cutting table 62 also extends along the first direction. The sliding cutting table 62 is slidably disposed on the fixed table 61, and the length of the fixed table 61 is larger than the sliding cutting table 62 to ensure that the sliding cutting table 62 does not come out of the fixed position when the sliding cutting table 62 is in the first position or the second position. Taiwan 61.
如图13和图15所示,滑动切割台62在固定台61上具有第一位置和第二位置。以图13和图15所示的方向进行说明,当滑动切割台62处于第一位置时,滑动切割台62处于固定台61的右侧位置。并且从图14可以看到,当滑动切割台62处于第一位置时,滑动切割台62的首端(也即图13所示的左端)位于切割结构63的右侧位置。从图16还可以看到,当滑动切割台62处于第二位置时,滑动切割台62的绝大部分(或者全部)位于切割结构63的右侧位置,以保证料带上的多个极片能够全部切割完成。As shown in FIGS. 13 and 15 , the sliding cutting table 62 has a first position and a second position on the fixed table 61 . Taking the directions shown in FIG. 13 and FIG. 15 to illustrate, when the sliding cutting table 62 is in the first position, the sliding cutting table 62 is in the right position of the fixed table 61. And it can be seen from FIG. 14 that when the sliding cutting table 62 is in the first position, the head end of the sliding cutting table 62 (ie, the left end shown in FIG. 13 ) is located on the right side of the cutting structure 63 . It can also be seen from Figure 16 that when the sliding cutting table 62 is in the second position, most (or all) of the sliding cutting table 62 is located on the right side of the cutting structure 63 to ensure multiple pole pieces on the material belt. All cuts can be completed.
基于上述结构,以下以正极料带切割正极片为例介绍滑动切割台62的工作过程:Based on the above structure, the working process of the sliding cutting table 62 is introduced below by taking the positive electrode strip cutting the positive electrode sheet as an example:
1、滑动切割台62移动至第一位置,并请接收正极料带;1. Move the sliding cutting table 62 to the first position, and please receive the positive electrode strip;
2、滑动切割台62由第一位置滑动至第二位置,滑动过程中,正极料带与滑动切割台62同步移动,并通过切割结构63对正极料带进行切割;2. The sliding cutting table 62 slides from the first position to the second position. During the sliding process, the positive electrode material belt and the sliding cutting table 62 move synchronously, and the positive electrode material belt is cut through the cutting structure 63;
3、滑动切割台62移动至第二位置,切割结构63切割完多个正极片;3. The sliding cutting table 62 moves to the second position, and the cutting structure 63 completes cutting multiple positive electrode sheets;
4、上料搬运机构70将多个正极片搬运至叠片台10进行叠片;4. The loading and transporting mechanism 70 transports multiple positive electrode sheets to the stacking table 10 for stacking;
5、滑动切割台62由第二位置移动回第一位置。5. The sliding cutting table 62 moves back to the first position from the second position.
循环往复进行上述的步骤1至步骤5,即可实现正极片的循环制片。Repeat the above-mentioned steps 1 to 5 in a circular motion to realize the cyclic production of positive electrode sheets.
现有技术中的叠片机中,通常通过输送皮带将极片料带流转至切割结构(五金模切、激光切割等等)的下方。而输送皮带存在的问题包括:皮带存在打滑的问题,因此极片料带移动至切割结构的下方的位置精度很难保证,现有技术中通常会在极片切割前或者极片切割后设置CCD相机和纠偏工位,以保证极片的位置精度,但如此会增加设备占用空间和成本;此外,输送皮带的传输速度受限,限制了叠片的节拍。In lamination machines in the prior art, the pole piece material belt is usually transferred to the lower part of the cutting structure (hardware die cutting, laser cutting, etc.) through a conveyor belt. Problems with the conveyor belt include: the belt has slipping problems, so it is difficult to ensure the position accuracy of the pole piece material belt when it moves to the bottom of the cutting structure. In the existing technology, a CCD is usually installed before or after pole piece cutting. Cameras and correction stations are used to ensure the position accuracy of the pole pieces, but this will increase the space and cost of the equipment; in addition, the transmission speed of the conveyor belt is limited, which limits the tempo of lamination.
如图17所示,需要强调的是,本实施例中滑动切割台62为可滑动地设置在固定台61行,滑动切割台62的滑动可以通过直线模组来实现。也即固定台61上设置有直线模组,滑动切割台62连接在直线模组上。如此设置至少具有以下优点:As shown in FIG. 17 , it should be emphasized that in this embodiment, the sliding cutting table 62 is slidably arranged on the fixed table 61 , and the sliding of the sliding cutting table 62 can be realized by a linear module. That is, the fixed table 61 is provided with a linear module, and the sliding cutting table 62 is connected to the linear module. This setting has at least the following advantages:
1、直线模组的移动精度高,保证带动极片料带精确移动至切割位置,固定台的上下游不必设置CCD相机和纠偏工位,节省设备空间及成本;1. The movement precision of the linear module is high, ensuring that the pole piece material belt is accurately moved to the cutting position. There is no need to set up CCD cameras and correction stations upstream and downstream of the fixed table, saving equipment space and costs;
2、直线模组移动响应快,能够快速带动极片料带移动至切割位置,实现高速循环制片,能够匹配后续的高速叠片。2. The linear module has fast movement response and can quickly drive the pole piece material belt to the cutting position, realizing high-speed cycle production and matching the subsequent high-speed lamination.
如图13至图16所示,在本实施例的技术方案中,固定台61上设置有吸附结构64,滑动切割台62上设置有吸附孔621。滑动切割台62在由第一位置移动至第二位置的过程中,滑动切割台62通过吸附结构64。As shown in FIGS. 13 to 16 , in the technical solution of this embodiment, the fixing table 61 is provided with an adsorption structure 64 , and the sliding cutting table 62 is provided with an adsorption hole 621 . When the sliding cutting table 62 moves from the first position to the second position, the sliding cutting table 62 passes through the adsorption structure 64 .
具体而言,吸附结构64能够通入负压,负压能够通过吸附孔621传递至滑动切割台62上表面上。当滑动切割台62在由第一位置移动至第二位置的过程中,极片料带被切割分割为多个极片。由于滑动切割台62的上表面通过吸附孔621通入负压,因此能够保证切割后的多个极片均被吸附固定在滑动切割台62的上表面上,也即切割后的极片也能够跟随滑动切割台62同步移动。Specifically, the adsorption structure 64 can pass negative pressure, and the negative pressure can be transmitted to the upper surface of the sliding cutting table 62 through the adsorption holes 621 . When the sliding cutting table 62 moves from the first position to the second position, the pole piece material strip is cut and divided into a plurality of pole pieces. Since the upper surface of the sliding cutting table 62 is supplied with negative pressure through the adsorption holes 621, it is ensured that the multiple pole pieces after cutting are all adsorbed and fixed on the upper surface of the sliding cutting table 62, that is, the cut pole pieces can also be Follow the sliding cutting table 62 to move synchronously.
如图14和图16所示,在本实施例的技术方案中,固定台61上设置有送料结构65,送料结构65适于输送正极料带或者负极料带。滑动切割台62的端部设置有夹料结构66。滑动切割台62处于第一位置时,夹料结构66位于送料结构65的前侧,并且夹料结构66适于夹取送料结构65输送的正极料带或者负极料带。As shown in Figures 14 and 16, in the technical solution of this embodiment, a feeding structure 65 is provided on the fixed platform 61, and the feeding structure 65 is suitable for transporting the positive electrode material strip or the negative electrode material strip. The end of the sliding cutting table 62 is provided with a clamping structure 66 . When the sliding cutting table 62 is in the first position, the clamping structure 66 is located on the front side of the feeding structure 65 , and the clamping structure 66 is suitable for clamping the positive electrode material strip or the negative electrode material strip conveyed by the feeding structure 65 .
以切割正极片为例进行说明,正极料带放卷机构21放卷后的料带通入至送料结构65处。从图14和图16可以看到,送料结构65设置在切割结构63的朝向第一位置的一侧,固定送料结构65固定设置在固定台61上。Taking the cutting of positive electrode sheets as an example for illustration, the positive electrode tape unwinding mechanism 21 unwinds the material tape and passes it to the feeding structure 65 . As can be seen from FIGS. 14 and 16 , the feeding structure 65 is disposed on the side of the cutting structure 63 facing the first position, and the fixed feeding structure 65 is fixedly disposed on the fixed platform 61 .
进一步地,送料结构65可以包括驱动辊和纠偏辊,驱动辊能够驱动正极料带向前移动,纠偏辊能够保证正极料带输入至滑动切割台62的位置准确。Further, the feeding structure 65 may include a driving roller and a correction roller. The driving roller can drive the positive electrode strip to move forward, and the correction roller can ensure that the position of the positive electrode strip input to the sliding cutting table 62 is accurate.
如图14所示,当滑动切割台62处于第一位置时,夹料结构66位于送料结构65的前侧,也即图14所示的送料结构65的朝向第二位置的一侧,二者靠近设置。此时,夹料结构66能够夹住送料结构65上的正极料带,此动作在上述的步骤1中进行。当滑动切割台62由第一位置移动至第二位置的过程中,夹料结构66即能够向外拉动正极料带,从而实现正极料带与滑动切割台62的同步移动。As shown in Figure 14, when the sliding cutting table 62 is in the first position, the clamping structure 66 is located on the front side of the feeding structure 65, that is, the side of the feeding structure 65 shown in Figure 14 facing the second position. Close to the setting. At this time, the clamping structure 66 can clamp the positive electrode strip on the feeding structure 65 , and this action is performed in step 1 above. When the sliding cutting table 62 moves from the first position to the second position, the clamping structure 66 can pull the positive electrode strip outward, thereby achieving synchronous movement of the positive electrode strip and the sliding cutting table 62 .
进一步地,送料结构65上还可以设置切断结构(例如切刀),当滑动切割台62移动至第二位置时,切断结构将正极料带切断,以保证切割后的最后一个极片与上游的极片料带分离(此处的切断也可以通过切割结构63来实现)。Furthermore, a cutting structure (such as a cutter) can also be provided on the feeding structure 65. When the sliding cutting table 62 moves to the second position, the cutting structure cuts the positive electrode strip to ensure that the last pole piece after cutting is connected with the upstream pole piece. The pole piece material strip is separated (the cutting here can also be realized by the cutting structure 63).
以下进一步详细介绍切割过程:The cutting process is described in further detail below:
在滑动切割台62在初始移动阶段,也即切割结构63尚未切割第一片极片时,夹料结构66带动极片料带向外移动。当切割结构63切割完第一片极片时,第一片极片与上游的极片料带分离,因此夹料结构66无法再带动极片料带移动。但如上述所述,滑动切割台62的上表面通过吸附结构64和吸附孔621通入负压,因此上游的极片料带能够通过吸附在滑动切割台62的表面上的极片料带带动移动。也即在切割结构63切割极片的过程中,极片料带能够通过负压的吸附力带动,保持与滑动切割台62的同步移动。When the sliding cutting table 62 is in the initial movement stage, that is, when the cutting structure 63 has not yet cut the first pole piece, the clamping structure 66 drives the pole piece material strip to move outward. When the cutting structure 63 finishes cutting the first pole piece, the first pole piece is separated from the upstream pole piece material belt, so the clamping structure 66 can no longer drive the pole piece material belt to move. However, as mentioned above, the upper surface of the sliding cutting table 62 is introduced into the negative pressure through the adsorption structure 64 and the adsorption hole 621, so the upstream pole piece material belt can be driven by the pole piece material belt adsorbed on the surface of the sliding cutting table 62 move. That is to say, when the cutting structure 63 cuts the pole pieces, the pole piece material strip can be driven by the adsorption force of the negative pressure to keep moving synchronously with the sliding cutting table 62 .
如图14、图16和图17所示,固定台61上设置有除尘结构67,除尘结构67设置在切割结构63的下方。具体而言,除尘结构67包括风刀和集尘结构,风刀和集尘结构分别位于固定台61的两侧,二者相对设置。风刀可以吹出正压,从而将切割过程中的粉尘和物料碎屑吹起。集尘结构具有集尘口,集尘口处可以通入负压,因此上述的粉尘和物料碎屑能够通过集尘结构进行收集。As shown in FIGS. 14 , 16 and 17 , a dust removal structure 67 is provided on the fixed platform 61 , and the dust removal structure 67 is provided below the cutting structure 63 . Specifically, the dust removal structure 67 includes an air knife and a dust collection structure. The air knife and the dust collection structure are respectively located on both sides of the fixed platform 61 and are arranged opposite to each other. The air knife can blow out positive pressure to blow up dust and material debris during the cutting process. The dust collection structure has a dust collection port, and negative pressure can be introduced into the dust collection port, so the above-mentioned dust and material debris can be collected through the dust collection structure.
如图14和图16所示,在本实施例的技术方案中,切割结构63包括激光器。在滑动切割台62由第一位置移动至第二位置的过程中,激光器对极片料带进行切割,从而形成多个极片。As shown in Figures 14 and 16, in the technical solution of this embodiment, the cutting structure 63 includes a laser. When the sliding cutting table 62 moves from the first position to the second position, the laser cuts the pole piece material strip to form a plurality of pole pieces.
在一些未示出的实施方式中,切割结构63也可以为五金模切,也即切割结构63可以包括切刀。In some embodiments not shown, the cutting structure 63 may also be a metal die-cut, that is, the cutting structure 63 may include a cutter.
以下详细介绍滑动切割台62的上表面的结构:The structure of the upper surface of the sliding cutting table 62 is introduced in detail below:
如图14和图16所示,滑动切割台62的上表面形成有多个相邻的切割位,每个切割位的形状轮廓与极片的形状轮廓适配。切割位的数量与一次需要制片的极片数量匹配。例如本实施例中一次制片十二片极片,因此切割位的数量至少为十二个(切割位设置为十二个或者多于十二个)。激光器能够沿着切割位的轮廓切割出极片的形状,包括两个侧边、底边、顶边以及位于顶边的极耳。从图14和图16还可以看到,每个切割位上布置有多个上述的吸附孔621。并且由于极耳部分面积小,因此切割位在极耳处的吸附孔621分布密度要大于其余部分的吸附孔621分布密度。As shown in Figures 14 and 16, a plurality of adjacent cutting positions are formed on the upper surface of the sliding cutting table 62, and the shape profile of each cutting position is adapted to the shape profile of the pole piece. The number of cutting positions matches the number of pole pieces that need to be produced at one time. For example, in this embodiment, twelve pole pieces are produced at one time, so the number of cutting positions is at least twelve (the cutting positions are set to twelve or more than twelve). The laser can cut the shape of the pole piece along the contour of the cutting position, including the two side edges, the bottom edge, the top edge, and the pole tab located on the top edge. It can also be seen from Figures 14 and 16 that a plurality of the above-mentioned adsorption holes 621 are arranged at each cutting position. And because the area of the tab part is small, the distribution density of the adsorption holes 621 cut at the tab is greater than the distribution density of the adsorption holes 621 in the remaining parts.
进一步地,正极片制片机构22的滑动切割台62的切割位(以下简称第一切割位)和负极片制片机构32的滑动切割台62的切割位(以下简称第二切割位)存在些许区别,具体而言:由于正极片和负极片为平移搬运至叠片台10进行叠片,因此第一切割位的极耳区域和第二切割位的极耳区域应当处于同一侧。并且由于电芯的正极耳和负极耳为沿着中部对称设置,因此第一切割位和第二区域和第二切割位的极耳区域呈镜像对称设置。Furthermore, there are some differences between the cutting position of the sliding cutting table 62 of the positive electrode sheet making mechanism 22 (hereinafter referred to as the first cutting position) and the cutting position of the sliding cutting table 62 of the negative electrode sheet making mechanism 32 (hereinafter referred to as the second cutting position). The difference, specifically: since the positive electrode sheet and the negative electrode sheet are translated and transported to the lamination stage 10 for lamination, the tab area of the first cutting position and the tab area of the second cutting position should be on the same side. And since the positive and negative electrode tabs of the battery core are symmetrically arranged along the middle part, the first cutting position and the second area and the tab area of the second cutting position are arranged in mirror symmetry.
实施例二Embodiment 2
本申请的正极片制片机构22和负极片制片机构32的实施例二与实施例一的结构基本一致,其结构可以参考图13至图17的内容。正极片制片机构22和负极片制片机构32的实施例二与实施例一的区别在于,切割结构63为可滑动地设置在固定台61的上方,并且极片的切割过程有所不同。The structure of the second embodiment of the positive electrode sheet producing mechanism 22 and the negative electrode sheet producing mechanism 32 of the present application is basically the same as that of the first embodiment. For the structure, reference can be made to the contents of Figures 13 to 17. The difference between the second embodiment of the positive electrode piece making mechanism 22 and the negative electrode piece making mechanism 32 and the first embodiment is that the cutting structure 63 is slidably disposed above the fixed platform 61 and the cutting process of the electrode pieces is different.
具体而言,切割结构63能够沿着第一方向在固定台61的上方滑动,并且极片料带在滑动切割台62固定在第二位置后,切割结构63才开始移动进行切割。因此以正极料带切割正极片为,实施例二的滑动切割台62切割过程为:Specifically, the cutting structure 63 can slide above the fixed table 61 along the first direction, and the cutting structure 63 starts to move for cutting only after the pole piece strip is fixed at the second position on the sliding cutting table 62 . Therefore, the positive electrode sheet is cut from the positive electrode strip, and the cutting process of the sliding cutting table 62 in the second embodiment is:
1、滑动切割台62移动至第一位置,并请接收正极料带;1. Move the sliding cutting table 62 to the first position, and please receive the positive electrode strip;
2、滑动切割台62由第一位置滑动至第二位置,滑动过程中,正极料带与滑动切割台62同步移动;2. The sliding cutting table 62 slides from the first position to the second position. During the sliding process, the positive electrode material belt and the sliding cutting table 62 move synchronously;
3、滑动切割台62移动至第二位置后,切割结构63沿着第一方向移动,并切割完多个正极片;3. After the sliding cutting table 62 moves to the second position, the cutting structure 63 moves along the first direction and completes cutting of multiple positive electrode sheets;
4、上料搬运机构70将多个正极片搬运至叠片台10进行叠片;4. The loading and transporting mechanism 70 transports multiple positive electrode sheets to the stacking table 10 for stacking;
5、滑动切割台62由第二位置移动回第一位置。5. The sliding cutting table 62 moves back to the first position from the second position.
实施例二的方案与实施例一相比的优点在于,滑动切割台62在由第一位置移动至第二位置的过程中,切割结构63不对极片料带进行切割。因此在滑动切割台62进行滑动的过程中,夹料结构66始终能够对极片料带提供拉拽力,这使得固定台61上可以不设置吸附结构64,或者在固定台61上设置吸附力较低的吸附结构64,保证极片料带再被夹料结构66拉出的过程中不在滑动切割台62上发生抖动即可。The advantage of the solution of Embodiment 2 compared with Embodiment 1 is that during the process of moving the sliding cutting table 62 from the first position to the second position, the cutting structure 63 does not cut the pole piece strip. Therefore, during the sliding process of the sliding cutting table 62, the clamping structure 66 can always provide a pulling force to the pole piece material strip, which makes it possible not to provide the adsorption structure 64 on the fixed table 61, or to set an adsorption force on the fixed table 61 The lower adsorption structure 64 ensures that the pole piece strip does not vibrate on the sliding cutting table 62 when it is pulled out by the clamping structure 66 .
可选地,可以在固定台61上设置直线模组,切割结构63连接在直线模组上,从而实现切割结构63能够在固定台61上进行滑动。Optionally, a linear module can be provided on the fixed platform 61 , and the cutting structure 63 is connected to the linear module, so that the cutting structure 63 can slide on the fixed platform 61 .
进一步地,由于实施例二中切割结构63在切割极片料带的过程中不断移动,因此切割位置也在不断改变。实施例二中的除尘结构67可以设置为与切割结构63同步移动,保证在不同位置切割后的粉尘和物料碎屑能够被收集。或者,除尘结构67也可以被设置为长条状,当滑动切割台62处于第二位置时,除尘结构67的除尘范围能够涵盖各个切割位置。Furthermore, since the cutting structure 63 in the second embodiment continuously moves during the process of cutting the pole piece strip, the cutting position also continuously changes. The dust removal structure 67 in the second embodiment can be set to move synchronously with the cutting structure 63 to ensure that dust and material debris after cutting at different positions can be collected. Alternatively, the dust removal structure 67 can also be arranged in a long strip shape. When the sliding cutting table 62 is in the second position, the dust removal range of the dust removal structure 67 can cover various cutting positions.
实施例二的正极片制片机构22和负极片制片机构32的其余结构可以参考上述的实施例一,故不再赘述。The rest of the structure of the positive electrode sheet producing mechanism 22 and the negative electrode sheet producing mechanism 32 of the second embodiment can be referred to the above-mentioned first embodiment, and therefore will not be described again.
实施例三Embodiment 3
如图18至图20所示,本申请的正极片制片机构22和负极片制片机构32的实施例三与上述的实施例和实施例一与实施例二的区别在于,正极片制片机构22和负极片制片机构32仅包括固定台61,并且不再设置滑动切割台62。As shown in Figures 18 to 20, the difference between the third embodiment of the positive electrode sheet production mechanism 22 and the negative electrode sheet production mechanism 32 of the present application and the above-mentioned embodiments and the first and second embodiments is that the positive electrode sheet production mechanism The mechanism 22 and the negative electrode sheet making mechanism 32 only include the fixed table 61, and the sliding cutting table 62 is no longer provided.
进一步地,固定台61的端部设置有夹料结构66,并且送料结构65设置为可滑动地设置在固定台61上,送料结构65具有第一位置和第二位置。切割结构63也为可滑动地设置在固定台61的上方,与实施例二的方案一致。Further, a clamping structure 66 is provided at an end of the fixed platform 61 , and a feeding structure 65 is configured to be slidably disposed on the fixed platform 61 . The feeding structure 65 has a first position and a second position. The cutting structure 63 is also slidably disposed above the fixed platform 61, which is consistent with the solution of the second embodiment.
进一步地,送料结构65由第一位置移动至第二位置后,夹料结构66位于送料结构65的前侧并夹取送料结构65输送的正极料带或者负极料带,然后送料结构65回退至第二位置后,切割结构63沿着正极料带或者负极料带的延伸方向移动,并将正极料带或负极料带切割为多个正极片或者多个负极片。Further, after the feeding structure 65 moves from the first position to the second position, the clamping structure 66 is located on the front side of the feeding structure 65 and clamps the positive electrode material belt or the negative electrode material belt conveyed by the feeding structure 65, and then the feeding structure 65 retreats. After reaching the second position, the cutting structure 63 moves along the extension direction of the positive electrode material belt or the negative electrode material belt, and cuts the positive electrode material belt or the negative electrode material belt into multiple positive electrode sheets or multiple negative electrode sheets.
首先需要说明的是,图18中示出了两个送料结构65,其示意的为一个送料结构65分别处于两个位置的示意图。其中,右侧的送料结构65为处于第一位置,左侧的送料结构65为处于第二位置。图18示出了两个切割结构63,其示意的为一个切割结构在切割的过程中的两个极限位置。因此图18示出的内容不能被理解为固定台61上具有两个切割结构63和两个送料结构65。First of all, it should be noted that two feeding structures 65 are shown in FIG. 18 , which is a schematic diagram of one feeding structure 65 in two positions respectively. Among them, the feeding structure 65 on the right side is in the first position, and the feeding structure 65 on the left side is in the second position. Figure 18 shows two cutting structures 63, which schematically represent two extreme positions of a cutting structure during the cutting process. Therefore, what is shown in FIG. 18 cannot be understood as having two cutting structures 63 and two feeding structures 65 on the fixed table 61 .
如图19和图20所示,实施例三的送料结构65与上述的实施例一和实施例二基本一致,其作用是输送正极料带或者负极料带。区别在于实施例三的送料结构65能够沿着第一方向在固定台61上滑动。当送料结构65由第一位置滑动至第二位置时,即可将极片料带铺设在固定台61的上表面上。并且当送料结构65滑动至第二位置时,固定台61上的夹料结构66能够夹住送料结构65输送的极片料带。然后送料结构65由第二位置返回至第一位置,也即回退。As shown in Figures 19 and 20, the feeding structure 65 of the third embodiment is basically the same as the above-mentioned first and second embodiments, and its function is to transport the positive electrode material belt or the negative electrode material belt. The difference is that the feeding structure 65 of the third embodiment can slide on the fixed platform 61 along the first direction. When the feeding structure 65 slides from the first position to the second position, the pole piece material strip can be laid on the upper surface of the fixed platform 61 . And when the feeding structure 65 slides to the second position, the clamping structure 66 on the fixed platform 61 can clamp the pole piece material belt conveyed by the feeding structure 65 . Then the feeding structure 65 returns from the second position to the first position, that is, retreats.
进一步地,送料结构65可以包括上下夹棍,上下夹棍之一通过驱动机构驱动上下移动,使得送料结构65可以夹紧极片料带或者松开极片料带。Further, the feeding structure 65 may include upper and lower clamping rollers, and one of the upper and lower clamping rollers is driven to move up and down by a driving mechanism, so that the feeding structure 65 can clamp the pole piece material belt or loosen the pole piece material belt.
实施例三中固定台61铺设极片料带的方式如图21所示,图21中左侧为第二位置,右侧为第一位置。图21示出的上侧示意图中,送料结构65处于第一位置,并等待上次切割后的极片下料;图21示出的中部示意图中,当上次切割后的极片下料后,送料结构65夹住极片料带,并由第一位置移动至第二位置,并且夹料结构66夹住极片料带的端部;图21所示的下侧示意图中,送料结构65松开极片料带,并向第一位置的方向回退,直至移动至第一位置,完成极片料带的铺设。The way in which the pole piece material strip is laid on the fixing platform 61 in the third embodiment is as shown in Figure 21. In Figure 21, the left side is the second position and the right side is the first position. In the upper schematic diagram shown in Figure 21, the feeding structure 65 is in the first position and is waiting for the pole pieces to be unloaded after the last cutting. In the middle schematic diagram shown in Figure 21, when the pole pieces after the last cutting are unloaded, , the feeding structure 65 clamps the pole piece material belt and moves from the first position to the second position, and the clamping structure 66 clamps the end of the pole piece material belt; in the lower schematic diagram shown in Figure 21, the feeding structure 65 Loosen the pole piece material strip and move back toward the first position until it moves to the first position to complete the laying of the pole piece material strip.
极片料带铺设完成后,切割结构63即可移动对极片料带进行切割,从而形成多个极片,与实施例二的方案一致。After the pole piece material strip is laid, the cutting structure 63 can move to cut the pole piece material strip, thereby forming multiple pole pieces, which is consistent with the solution of the second embodiment.
实施例三的技术方案与上述的实施例一和实施例二相比,优点在于,由于不再设置滑动切割台62,因此固定台61的长度可以做的更短(实施例一与实施例二中固定台61的长度需要防止滑动切割台处于第一位置时脱离),比需要切割的多个极片的总宽度略长即可。因此在实施例三的技术方案中,叠片设备的沿第一方向的总长度可以设置为尺寸更小,有利于叠片设备的进一步小型化设计。Compared with the above-mentioned Embodiment 1 and Embodiment 2, the technical solution of Embodiment 3 has the advantage that since the sliding cutting table 62 is no longer provided, the length of the fixed table 61 can be made shorter (Embodiment 1 and Embodiment 2). The length of the middle fixing table 61 needs to prevent the sliding cutting table from detaching when it is in the first position), and it can be slightly longer than the total width of the multiple pole pieces that need to be cut. Therefore, in the technical solution of the third embodiment, the total length of the stacking device along the first direction can be set to be smaller, which is conducive to further miniaturization design of the stacking device.
此外,实施例三中固定台61的上表面作为切割表面,因此实施例三中固定台61的上表面的结构可以参考上述实施例一和实施例二的滑动切割台62的上表面的结构,故不再赘述。In addition, the upper surface of the fixed table 61 in the third embodiment is used as the cutting surface. Therefore, the structure of the upper surface of the fixed table 61 in the third embodiment can refer to the structure of the upper surface of the sliding cutting table 62 in the first and second embodiments. Therefore no further details will be given.
三、隔膜料带放卷3. Unwinding the diaphragm tape
本申请中,隔膜供料机构40可以采用两种设置方式,一种为在叠片台10的两侧均设置隔膜供料机构40,另一种为仅在叠片台10的一侧设置隔膜供料机构40,以下详细介绍。In this application, the diaphragm feeding mechanism 40 can be arranged in two ways, one is to set the diaphragm feeding mechanism 40 on both sides of the stacking table 10 , and the other is to set the diaphragm on only one side of the stacking table 10 The feeding mechanism 40 is introduced in detail below.
实施例一Embodiment 1
如图1至图5所示,根据本申请的隔膜供料机构40的实施例一种,隔膜供料机构40包括第一隔膜供料机构41和第二隔膜供料机构42。第一隔膜供料机构41和第二隔膜供料机构42沿着第一方向分别位于叠片台10的两侧,铺膜机构50适于沿第一方向在第一隔膜供料机构41和第二隔膜供料机构42之间移动。As shown in FIGS. 1 to 5 , according to an embodiment of the diaphragm feeding mechanism 40 of the present application, the diaphragm feeding mechanism 40 includes a first diaphragm feeding mechanism 41 and a second diaphragm feeding mechanism 42 . The first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42 are respectively located on both sides of the lamination table 10 along the first direction. The film laying mechanism 50 is adapted to connect the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 41 along the first direction. The two diaphragm feeding mechanisms 42 move between each other.
在本实施例中,第一隔膜供料机构41和第二隔膜供料机构42的设置位置为:在沿着第一方向上,第一隔膜供料机构41和第二隔膜供料机构42分别位于叠片台10的两侧。具体而言,第一隔膜供料机构41位于叠片台10的图1所示的左侧,第二隔膜供料机构42位于叠片台10的图1所示的右侧。在沿着第二方向上,第一隔膜供料机构41位于正极片供料机构20和负极片供料机构30之间的位置。In this embodiment, the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42 are arranged in such a position that along the first direction, the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42 are respectively Located on both sides of the stacking table 10. Specifically, the first diaphragm feeding mechanism 41 is located on the left side of the laminating table 10 as shown in FIG. 1 , and the second diaphragm feeding mechanism 42 is located on the right side of the laminating table 10 as shown in FIG. 1 . Along the second direction, the first separator feeding mechanism 41 is located between the positive electrode sheet feeding mechanism 20 and the negative electrode sheet feeding mechanism 30 .
从图1还可以看到,正极片制片机构22、负极片制片机构32、第一隔膜供料机构41和第二隔膜供料机构42分别围绕设置在叠片台10的四边处,并且叠片台10、第一隔膜供料机构41和第二隔膜供料机构42均为固定设置,不发生移动,因此使得各机构设置位置紧凑,布局小巧,大大减小了叠片设备的占用体积。It can also be seen from Figure 1 that the positive electrode sheet making mechanism 22, the negative electrode sheet making mechanism 32, the first separator feeding mechanism 41 and the second separator feeding mechanism 42 are respectively arranged around the four sides of the stacking table 10, and The stacking table 10, the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42 are all fixed and do not move. Therefore, the installation positions of each mechanism are compact and the layout is small, which greatly reduces the occupied volume of the laminating equipment. .
如图3和图4所示,第一隔膜供料机构41和第二隔膜供料机构42的结构基本相同,二者沿着叠片台10的中部呈镜像对称设置。图5示出了第二隔膜供料机构42的结构,其包括机架以及设置在机架上的主动辊、过辊、张紧辊和纠偏辊等等。As shown in FIGS. 3 and 4 , the structures of the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42 are basically the same, and they are arranged in mirror symmetry along the middle part of the stacking table 10 . Figure 5 shows the structure of the second diaphragm feeding mechanism 42, which includes a frame and a driving roller, a passing roller, a tensioning roller, a correction roller, etc. arranged on the frame.
第一隔膜供料机构41能够朝向第二隔膜供料机构42的方向进行隔膜供料,第二隔膜供料机构42能够朝向第一隔膜供料机构41的方向进行隔膜供料,上述的铺膜机构50与二者的具体配合方式将在下述的叠片部分进行说明。The first diaphragm feeding mechanism 41 can feed diaphragms in the direction of the second diaphragm feeding mechanism 42, and the second diaphragm feeding mechanism 42 can feed diaphragms in the direction of the first diaphragm feeding mechanism 41. The above-mentioned film laying The specific cooperation method between the mechanism 50 and the two will be described in the lamination section below.
实施例二Embodiment 2
如图7和图12所示,根据本申请的隔膜供料机构40的实施例二与上述的实施例一区别在于,隔膜供料机构40仅设置在叠片台10的一侧位置。具体而言,隔膜供料机构40设置在叠片台10的沿第一方向的一侧,并且位于图12所示的左侧位置。As shown in FIGS. 7 and 12 , the difference between the second embodiment of the diaphragm feeding mechanism 40 according to the present application and the above-mentioned first embodiment is that the diaphragm feeding mechanism 40 is only provided on one side of the stacking table 10 . Specifically, the diaphragm feeding mechanism 40 is provided on one side of the lamination table 10 along the first direction, and is located at the left position as shown in FIG. 12 .
由于实施例二中,叠片台10仅在其一侧设置了隔膜供料机构40,因此铺膜机构50需要在图12所示的方向由左至右铺设隔膜时,同步缓存回程的隔膜。当铺膜机构50在图12所示的方向由右至左的方向铺设隔膜时,铺膜机构50将缓存的隔膜释放,从而完成一次往复隔膜铺设。铺膜机构50具体如何实现该功能,将在下述叠片部分详细说明。Since in the second embodiment, the laminating table 10 is only provided with the diaphragm feeding mechanism 40 on one side thereof, the laminating mechanism 50 needs to simultaneously cache the returning diaphragms when laying diaphragms from left to right in the direction shown in FIG. 12 . When the film laying mechanism 50 lays the membrane from right to left in the direction shown in Figure 12, the film laying mechanism 50 releases the cached membrane, thereby completing a reciprocating membrane laying. How the film laying mechanism 50 implements this function will be described in detail in the lamination section below.
实施例二的隔膜供料机构40和上述的实施例一相比,由于仅在叠片台10的一侧设置,因此叠片设备的沿第一方向的总长度可以设置为尺寸更小,有利于叠片设备的进一步小型化设计。Compared with the above-mentioned first embodiment, the diaphragm feeding mechanism 40 of the second embodiment is only provided on one side of the lamination table 10, so the total length of the lamination equipment along the first direction can be set to be smaller, so that It is conducive to further miniaturization design of lamination equipment.
四、叠片4. Lamination
叠片过程中,需要将正片、隔膜、负极片进行往复堆叠,从而形成电芯结构。本实施例中的叠片主要通过铺膜机构50和上料搬运机构70来实现的,因此首先详细介绍二者的结构和工作过程:During the lamination process, positive sheets, separators, and negative electrode sheets need to be stacked back and forth to form a cell structure. The lamination in this embodiment is mainly realized by the film laying mechanism 50 and the loading and transporting mechanism 70. Therefore, the structure and working process of the two are first introduced in detail:
(1)、铺膜机构(1) Film laying mechanism
本申请的铺膜机构50包括两种实施方式,对应上述的隔膜供料机构40的两种实施方式,以下详细说明。The film laying mechanism 50 of the present application includes two embodiments, corresponding to the two embodiments of the membrane feeding mechanism 40 mentioned above, which will be described in detail below.
实施例一Embodiment 1
实施例一的铺膜机构50用于与上述的实施例一的隔膜供料机构40进行配合,如图1所示,本实施例中的铺膜机构50能够沿着第一方向可移动地设置在叠片台10的上方,并且铺膜机构50能够在第一隔膜供料机构41和第二隔膜供料机构42之间往复移动。铺膜机构50的作用是在沿着图1和图2所示的左右方向(第一方向)往复铺设隔膜。The film laying mechanism 50 of the first embodiment is used to cooperate with the membrane feeding mechanism 40 of the above-mentioned embodiment one. As shown in Figure 1, the film laying mechanism 50 in this embodiment can be movably arranged along the first direction. Above the lamination table 10 , the film laying mechanism 50 can reciprocate between the first membrane feeding mechanism 41 and the second membrane feeding mechanism 42 . The function of the membrane laying mechanism 50 is to reciprocally lay the membrane along the left-right direction (first direction) shown in FIGS. 1 and 2 .
具体而言,当铺膜机构50移动至靠近第一隔膜供料机构41时,铺膜机构50能够抓取第一隔膜供料机构41释放的隔膜,然后铺膜机构50朝向第二隔膜供料机构42移动,实现隔膜由左至右的铺设,直至铺膜机构50移动至靠近第二隔膜供料机构42的位置。当铺膜机构50移动至靠近第二隔膜供料机构42时,铺膜机构50能够抓取第二隔膜供料机构42释放的隔膜,然后铺膜机构50朝向第一隔膜供料机构41移动,实现隔膜由右至左的铺设,直至铺膜机构50移动至靠近第一隔膜供料机构41的位置。Specifically, when the film laying mechanism 50 moves close to the first separator feeding mechanism 41, the film laying mechanism 50 can grab the membrane released by the first separator feeding mechanism 41, and then the film laying mechanism 50 moves toward the second separator feeding mechanism 42 moves to realize the laying of the membrane from left to right until the membrane laying mechanism 50 moves to a position close to the second membrane feeding mechanism 42 . When the film laying mechanism 50 moves close to the second separator feeding mechanism 42, the film laying mechanism 50 can grab the separator released by the second separator feeding mechanism 42, and then the film laying mechanism 50 moves toward the first separator feeding mechanism 41 to achieve The membranes are laid from right to left until the membrane laying mechanism 50 moves to a position close to the first membrane feeding mechanism 41 .
往复进行上述步骤,即可实现铺膜机构50在第一方向上的往复铺设隔膜。By reciprocating the above steps, the film laying mechanism 50 can reciprocally lay the membrane in the first direction.
进一步地,上述的第一隔膜供料机构41上设置有第一切断结构,上述的第二隔膜供料机构42上设置有第二切断结构。铺膜机构50移动至靠近第二隔膜供料机构42时,第一切断结构切断隔膜,以使得隔膜的朝向第一隔膜供料机构41的一端能够落在叠片台10上。铺膜机构50移动至靠近第一隔膜供料机构41时,第二切断结构切断隔膜,以使得隔膜的朝向第二隔膜供料机构42的一端能够落在叠片台10上。Furthermore, the above-mentioned first separator supply mechanism 41 is provided with a first cutting structure, and the above-mentioned second septum supply mechanism 42 is provided with a second cutting structure. When the film laying mechanism 50 moves close to the second diaphragm feeding mechanism 42 , the first cutting structure cuts off the diaphragm, so that one end of the diaphragm facing the first diaphragm feeding mechanism 41 can fall on the stacking table 10 . When the film laying mechanism 50 moves close to the first diaphragm feeding mechanism 41 , the second cutting structure cuts off the diaphragm, so that one end of the diaphragm facing the second diaphragm feeding mechanism 42 can fall on the stacking table 10 .
如图6和图7所示,在本实施例的技术方案中,铺膜机构50包括支撑架51、第一夹膜结构52和第二夹膜结构53。其中,支撑架51朝向第一隔膜供料机构41的一侧设置有第一夹膜结构52,支撑架51朝向第二隔膜供料机构42的一侧设置有第二夹膜结构53。并且第一夹膜结构52和第二夹膜结构53均为可开合结构,第一夹膜结构52适于抓取第一隔膜供料机构41的隔膜,第二夹膜结构53适于抓取第二隔膜供料机构42的隔膜。As shown in FIGS. 6 and 7 , in the technical solution of this embodiment, the film laying mechanism 50 includes a support frame 51 , a first sandwich structure 52 and a second sandwich structure 53 . Among them, a first sandwich structure 52 is provided on the side of the support frame 51 facing the first diaphragm supply mechanism 41 , and a second sandwich structure 53 is provided on the side of the support frame 51 facing the second diaphragm supply mechanism 42 . And both the first sandwich structure 52 and the second sandwich structure 53 are openable and closable structures. The first sandwich structure 52 is suitable for grabbing the diaphragm of the first diaphragm feeding mechanism 41, and the second sandwich structure 53 is suitable for grabbing. Take the diaphragm from the second diaphragm feeding mechanism 42.
具体而言,支撑架51大致呈开口向下的“U”型结构,其包括一个顶边和两个侧边。第一夹膜结构52和第二夹膜结构53均为夹子结构,二者设置在支撑架51的顶边上。第一夹膜结构52和第二夹膜结构53可以通过驱动机构(例如直线电机、丝杠螺母等等)控制开合,使得第一夹膜结构52能够夹住第一隔膜供料机构41释放的隔膜,或者放开第一隔膜供料机构41释放的隔膜,并使得使得第二夹膜结构53能够夹住第二隔膜供料机构42释放的隔膜,或者放开第二隔膜供料机构42释放的隔膜。Specifically, the support frame 51 is generally in the form of a "U"-shaped structure with an opening downward, which includes a top edge and two side edges. The first sandwich structure 52 and the second sandwich structure 53 are both clip structures, and they are arranged on the top edge of the support frame 51 . The first membrane structure 52 and the second membrane structure 53 can be opened and closed through a driving mechanism (such as a linear motor, screw nut, etc.), so that the first membrane structure 52 can clamp the first membrane feeding mechanism 41 and release it. the diaphragm, or release the diaphragm released by the first diaphragm feeding mechanism 41, and enable the second sandwich structure 53 to clamp the diaphragm released by the second diaphragm feeding mechanism 42, or release the second diaphragm feeding mechanism 42 Released diaphragm.
从图6还可以看到,叠片装置还包括两个导轨,导轨沿着第一方向延伸,并且导轨设置在第一隔膜供料机构41和第二隔膜供料机构42之间。两个导轨相对设置,并且分别位于叠片台10的两侧。上述的支撑架51的两个侧边分别连接在两个导轨上,支撑架51可以通过直线机构在导轨上快速移动。It can also be seen from FIG. 6 that the stacking device further includes two guide rails, the guide rails extend along the first direction, and the guide rails are disposed between the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42 . The two guide rails are arranged opposite each other and located on both sides of the stacking table 10 . The two sides of the above-mentioned support frame 51 are respectively connected to two guide rails, and the support frame 51 can move quickly on the guide rails through a linear mechanism.
在本实施例中,铺膜机构50的结构简单,重量较轻,能够实现在第一隔膜供料机构41和第二隔膜供料机构42之间高速往复移动,配合上述的高速循环制片,因此本实施例中的叠片装置极大的提高了叠片速度和叠片效率。In this embodiment, the film laying mechanism 50 has a simple structure and is light in weight, and can realize high-speed reciprocating movement between the first diaphragm feeding mechanism 41 and the second diaphragm feeding mechanism 42. In conjunction with the above-mentioned high-speed cycle film making, Therefore, the lamination device in this embodiment greatly improves the lamination speed and lamination efficiency.
实施例二Embodiment 2
实施例二的铺膜机构50用于与上述的实施例二的隔膜供料机构40配合。如图7至图11所示,隔膜供料机构40沿着第一方向设置在叠片台10的侧部。铺膜机构50包括卷辊,卷辊上设置有抓膜结构54,卷辊能够通过夹膜结构54抓取隔膜,并带动隔膜沿两个方向绕卷辊的中心轴线转动。The membrane laying mechanism 50 of the second embodiment is used to cooperate with the membrane feeding mechanism 40 of the above-mentioned second embodiment. As shown in FIGS. 7 to 11 , the diaphragm feeding mechanism 40 is disposed on the side of the lamination table 10 along the first direction. The film laying mechanism 50 includes a roll roller. The roll roller is provided with a film grabbing structure 54. The roll roller can grab the membrane through the film clamping structure 54 and drive the membrane to rotate in two directions around the central axis of the roll roller.
进一步地,铺膜机构50具有靠近隔膜供料机构40的第一铺膜位置和远离隔膜供料机构40的第二铺膜位置。铺膜机构50由第一铺膜位置向第二铺膜位置移动的过程中,卷辊朝第一周向方向转动,以将隔膜卷绕在卷辊外进行缓存。铺膜机构50由第二铺膜位置向第一铺膜位置移动的过程中,卷辊朝第二周向方向转动,以将隔膜释放。Further, the film laying mechanism 50 has a first film laying position close to the membrane supply mechanism 40 and a second film laying position away from the membrane supply mechanism 40 . When the film laying mechanism 50 moves from the first film laying position to the second film laying position, the roll roller rotates in the first circumferential direction to wind the separator outside the roll roller for buffering. When the film laying mechanism 50 moves from the second film laying position to the first film laying position, the roll roller rotates in the second circumferential direction to release the membrane.
具体而言,实施例二的铺膜机构50与上述的实施例一不同,其为圆辊结构。铺膜机构50通过夹膜结构54抓取隔膜后,能够带动隔膜绕第一周向方向转动,或者带动隔膜绕第二周向方向转动。本实施例中,第一周向方向为逆时针,第二周向方向为顺时针,当然二者的方向也可以对调设置。Specifically, the film laying mechanism 50 of the second embodiment is different from the above-mentioned first embodiment in that it has a round roller structure. After the film laying mechanism 50 grabs the diaphragm through the sandwich structure 54, it can drive the diaphragm to rotate around the first circumferential direction, or drive the diaphragm to rotate around the second circumferential direction. In this embodiment, the first circumferential direction is counterclockwise and the second circumferential direction is clockwise. Of course, the two directions can also be reversed.
本实施例中,卷辊包括上下相对设置的两个半辊,半辊的外表面为弧形面,相对的内表面为平面(截面近似为“D”型结构),两个半辊的外表面形成完整的圆形辊面。两个半辊能够在驱动机构的驱动下互相靠近或者互相远离,二者之间的间隙形成了上述的夹膜结构54。本领域技术人员可以理解,当两个半辊相互靠近时,即可抓取隔膜,当两个半辊相互远离时,即可松开隔膜。In this embodiment, the winding roller includes two half-rollers arranged oppositely up and down. The outer surface of the half-roller is an arc surface, and the opposite inner surface is a flat surface (the cross-section is approximately a "D"-shaped structure). The outer surfaces of the two half-rollers are The surface forms a complete circular roller surface. The two half-rollers can move closer to or move away from each other under the drive of the driving mechanism, and the gap between the two half-rollers forms the above-mentioned sandwich structure 54. Those skilled in the art can understand that when the two half-rollers are close to each other, the separator can be grasped, and when the two half-rollers are far away from each other, the separator can be released.
当然,夹膜结构54也可以设置为其他结构,例如在卷辊的外表面设置吸附孔、夹子等等。Of course, the sandwich structure 54 can also be provided with other structures, such as providing adsorption holes, clips, etc. on the outer surface of the roll roller.
在图12所示的方向中,第一铺膜位置处于叠片台10的左侧,第二铺膜位置处于叠片台10的右侧。In the direction shown in FIG. 12 , the first film laying position is on the left side of the lamination table 10 , and the second film laying position is on the right side of the lamination table 10 .
进一步地,如图7至图11所示,叠片装置还包括适于夹持隔膜的第一夹持结构55和第二夹持结构56,以及适于切断隔膜的第一切断结构57和第二切断结构58,第一夹持结构55和第一切断结构57设置在第一铺膜位置处,第二夹持结构56和第二切断结构58设置在第二铺膜位置处。Further, as shown in Figures 7 to 11, the stacking device also includes a first clamping structure 55 and a second clamping structure 56 suitable for clamping the diaphragm, and a first cutting structure 57 and a third cutting structure suitable for cutting the diaphragm. Two cutting structures 58, the first clamping structure 55 and the first cutting structure 57 are arranged at the first film laying position, and the second clamping structure 56 and the second cutting structure 58 are arranged at the second film laying position.
基于上述结构,以下详细介绍实施例二的铺膜机构50的工作过程:Based on the above structure, the working process of the film laying mechanism 50 of the second embodiment is introduced in detail below:
1、如图7所示,卷辊初始处于第一铺膜位置,卷辊通过夹膜结构54抓取第一夹持结构55上的隔膜的端部,并准备朝向第二铺膜位置移动;1. As shown in Figure 7, the roll roller is initially in the first film laying position. The roll roller grabs the end of the separator on the first clamping structure 55 through the film clamping structure 54 and is ready to move toward the second film laying position;
2、如图8所示,卷辊朝向第二铺膜位置移动,卷辊边移动边朝第一周向方向转动,将隔膜卷绕在卷辊上,也即在铺设隔膜的过程中同时缓存隔膜;2. As shown in Figure 8, the roll roll moves toward the second film laying position, and the roll roll rotates in the first circumferential direction while moving, and the separator is wound on the roll roll, that is, the separator is cached at the same time during the process of laying the separator. diaphragm;
3、如图8和图9所示,第一切断结构47和第二切断结构48将隔膜的两侧切断,实现单张隔膜的铺设;3. As shown in Figures 8 and 9, the first cutting structure 47 and the second cutting structure 48 cut both sides of the diaphragm to realize the laying of a single diaphragm;
4、如图10所示,卷辊处于第二铺膜位置时,第二夹持结构56夹持住卷辊上缓存的隔膜的端部,卷辊准备朝向第一铺膜位置移动;4. As shown in Figure 10, when the roll roller is in the second film laying position, the second clamping structure 56 clamps the end of the separator buffered on the roll roller, and the roll roller is ready to move toward the first film laying position;
5、如图11所示,卷辊朝向第一铺膜位置移动,并且卷辊边移动边朝第二周向方向转动,将缓存的隔膜从卷辊上进行释放,也即在移动的过程中释放缓存的隔膜,直至卷辊移动至第一铺膜位置,释放完缓存的隔膜,第二夹持结构56松开隔膜,完成一次往复隔膜的铺设。5. As shown in Figure 11, the roll roll moves toward the first film laying position, and the roll roll rotates in the second circumferential direction while moving to release the buffered membrane from the roll roll, that is, during the movement The buffered diaphragm is released until the roll roller moves to the first film laying position. After the buffered diaphragm is released, the second clamping structure 56 releases the diaphragm, completing the laying of a reciprocating diaphragm.
往复进行上述的步骤1至步骤5,即可进行隔膜在第一方向上的往复铺设。Repeat the above steps 1 to 5 to reciprocate the laying of the membrane in the first direction.
实施例二的铺膜机构50与上述的实施例一相比,虽然结构和控制过程略有复杂,但是可以省去实施例一中的第二隔膜供料机构42,使得叠片装置在第一方向上的尺寸更小。Compared with the above-mentioned first embodiment, the film laying mechanism 50 of the second embodiment has a slightly complicated structure and control process. However, the second diaphragm feeding mechanism 42 in the first embodiment can be omitted, so that the lamination device can be placed in the first embodiment. The size in the direction is smaller.
(2)、上料搬运机构(2), loading and transporting mechanism
如图1、图23和图24所示,在本实施例的技术方案中,上料搬运机构70设置在叠片台10的上方,并且上料搬运机构70适于在正极片供料机构20和负极片供料机构30之间往复移动,以将正极片搬运至叠片台10上,或者将负极片搬运至叠片台10上。As shown in FIGS. 1 , 23 and 24 , in the technical solution of this embodiment, the loading and transporting mechanism 70 is arranged above the stacking table 10 , and the loading and transporting mechanism 70 is suitable for feeding the positive electrode sheet 20 It moves back and forth with the negative electrode sheet feeding mechanism 30 to transport the positive electrode sheets to the stacking table 10 or to transport the negative electrode sheets to the stacking table 10 .
具体而言,如图23所示,上料搬运机构70包括安装架71,以及安装在安装架71上的第一抓取结构72和第二抓取结构73。安装架71具有第一搬运位置和第二搬运位置,安装架71处于第一搬运位置时,第一抓取结构72位于正极片供料机构20的上方,第二抓取结构73位于叠片台10的上方,安装架71处于第二搬运位置时,第一抓取结构72位于叠片台10的上方,第二抓取结构73位于负极片供料机构30的上方。Specifically, as shown in FIG. 23 , the material loading and transportation mechanism 70 includes a mounting frame 71 and a first grabbing structure 72 and a second grabbing structure 73 installed on the mounting frame 71 . The mounting frame 71 has a first carrying position and a second carrying position. When the mounting frame 71 is in the first carrying position, the first grabbing structure 72 is located above the positive electrode sheet feeding mechanism 20 and the second grabbing structure 73 is located on the stacking table. 10, when the mounting frame 71 is in the second transport position, the first grabbing structure 72 is located above the stacking table 10, and the second grabbing structure 73 is located above the negative electrode sheet feeding mechanism 30.
进一步地,安装架71呈长条形结构,其沿着第一方向延伸。安装架71整体能够沿着第二方向进行移动。上述的第一抓取结构72和第二抓取结构73也为长条状结构,二者也均沿着第一方向延伸。第一抓取结构72和第二抓取结构73之间的距离,与滑动切割台62处于第二位置时与叠片台10支架的距离一致。Further, the mounting bracket 71 has a long strip structure extending along the first direction. The entire mounting bracket 71 is movable along the second direction. The above-mentioned first grabbing structure 72 and the second grabbing structure 73 are also elongated structures, and both of them also extend along the first direction. The distance between the first grabbing structure 72 and the second grabbing structure 73 is consistent with the distance between the sliding cutting table 62 and the stacking table 10 bracket when it is in the second position.
进一步地,第一抓取结构72能够一次抓取滑动切割台62上切割完成的多个正极片,或者同步将多个正极片放置在叠片台10上。第二抓取结构73能够一次抓取滑动切割台62上切割完成的多个负极片,或者同步将多个负极片放置在叠片台10上。Furthermore, the first grabbing structure 72 can grab multiple positive electrode sheets that have been cut on the sliding cutting table 62 at one time, or simultaneously place multiple positive electrode sheets on the stacking table 10 . The second grabbing structure 73 can grab multiple negative electrode sheets that have been cut on the sliding cutting table 62 at one time, or place multiple negative electrode sheets on the stacking table 10 simultaneously.
上料搬运机构70的正负极片上料搬运过程为:The loading and transporting process of the positive and negative electrode sheets of the loading and transporting mechanism 70 is as follows:
1、安装架71初始处于第一搬运位置,第一抓取结构72抓取多个正极片;1. The mounting frame 71 is initially in the first carrying position, and the first grabbing structure 72 grabs multiple positive electrode sheets;
2、安装架71移动至第二搬运位置;第一抓取结构72将多个正极片放置在叠片台10上,第二抓取结构73抓取多个负极片;2. The mounting frame 71 moves to the second transportation position; the first grabbing structure 72 places multiple positive electrode sheets on the stacking table 10, and the second grabbing structure 73 grabs multiple negative electrode sheets;
3、安装架71移动至第一搬运位置;第二抓取结构73将多个负极片放置在叠片台10上,第一抓取结构72抓取多个正极片。3. The mounting frame 71 moves to the first transportation position; the second grabbing structure 73 places multiple negative electrode sheets on the stacking table 10 , and the first grabbing structure 72 grabs multiple positive electrode sheets.
重复进行步骤2和步骤3,即可实现正极片和负极片往复堆叠放置在叠片台10上。Repeat steps 2 and 3 to achieve reciprocal stacking of positive electrode sheets and negative electrode sheets on the stacking table 10 .
如图23和图24所示,在本实施例的技术方案中,第一抓取结构72和第二抓取结构73均包括多个依次设置的吸附板74,上料搬运机构还包括变距结构75,变距结构75设置在安装架71上,并适于改变相邻的吸附板74之间的距离。As shown in Figures 23 and 24, in the technical solution of this embodiment, both the first grabbing structure 72 and the second grabbing structure 73 include a plurality of adsorption plates 74 arranged in sequence, and the loading and transporting mechanism also includes a variable pitch Structure 75, the distance-changing structure 75 is provided on the mounting bracket 71 and is suitable for changing the distance between adjacent adsorption plates 74.
具体而言,第一抓取结构72和第二抓取结构73的吸附板74的具体数量,与正极片制片机构22和负极片制片机构32一次的制片数量适配。例如在本实施例中,正极片制片机构22一次制片十二片正极片,负极片制片机构32一次制片十二片负极片,因此第一抓取结构72包括十二个吸附板74,第二抓取结构73包括十二个吸附板74。Specifically, the specific number of the adsorption plates 74 of the first grabbing structure 72 and the second grabbing structure 73 is adapted to the number of sheets produced by the positive electrode sheet producing mechanism 22 and the negative electrode sheet producing mechanism 32 at one time. For example, in this embodiment, the positive electrode sheet making mechanism 22 produces twelve positive electrode sheets at one time, and the negative electrode sheet producing mechanism 32 produces twelve negative electrode sheets at one time. Therefore, the first grabbing structure 72 includes twelve adsorption plates. 74. The second grabbing structure 73 includes twelve adsorption plates 74 .
如图24所示,吸附板74通过L型悬臂连接在安装架71上。安装架上设置有导轨,悬臂的竖边设置有滑块,滑块连接在导轨上,使得悬臂能够在安装架71上进行滑动。吸附板74连接在悬臂的横边的下表面上,吸附板74可以通过管路连接外部负压结构,使得吸附板74的下端能够通入负压。当吸附板74的下端通入负压时,吸附板74能够抓取正极片或者负极片,当吸附板74的下端不通入负压时,吸附板74能够将正极片或者负极片放置在叠片台10上。As shown in Figure 24, the adsorption plate 74 is connected to the mounting bracket 71 through an L-shaped cantilever. The mounting frame is provided with guide rails, and the vertical edge of the cantilever is provided with a slider. The slider is connected to the guide rail so that the cantilever can slide on the mounting frame 71 . The adsorption plate 74 is connected to the lower surface of the lateral edge of the cantilever. The adsorption plate 74 can be connected to an external negative pressure structure through a pipeline, so that the lower end of the adsorption plate 74 can receive negative pressure. When the lower end of the adsorption plate 74 is supplied with negative pressure, the adsorption plate 74 can grab the positive electrode sheet or the negative electrode sheet. When the lower end of the adsorption plate 74 is not supplied with negative pressure, the adsorption plate 74 can place the positive electrode sheet or the negative electrode sheet on the stack. On stage 10.
进一步地,当极片料带在上述的滑动切割台62完成切割后,相邻的极片之间呈紧贴状态(仅有切割缝隙),但是多个极片在叠片台10上叠片时,相邻的极片之间需要具有一定的间距,因此本实施例中设置了变距结构75,用于调整相邻的吸附板74之间的距离。Further, after the pole piece material strip is cut on the above-mentioned sliding cutting table 62, the adjacent pole pieces are in a close contact state (with only cutting gaps), but multiple pole pieces are stacked on the lamination table 10 , a certain spacing is required between adjacent pole pieces, so in this embodiment, a variable pitch structure 75 is provided to adjust the distance between adjacent adsorption plates 74 .
具体而言,变距结构75使得相邻的吸附板74之间具有互相紧贴的第一状态,以及具有一定间距的第二状态。当吸附板74抓取极片时,变距结构使吸附板74处于第一状态,以适配切割后的极片之间紧贴的装填。当安装架71移动,使得吸附板74由滑动切割台62移动至叠片台10的过程中,变距结构使吸附板74处于第二状态,以满足叠片过程中相邻的极片需要一定间距的要求。Specifically, the variable pitch structure 75 enables the adjacent adsorption plates 74 to have a first state in which they are in close contact with each other, and a second state in which they have a certain distance. When the adsorption plate 74 grabs the pole pieces, the variable pitch structure puts the adsorption plate 74 in the first state to adapt to the close contact between the cut pole pieces. When the mounting bracket 71 moves so that the adsorption plate 74 moves from the sliding cutting table 62 to the lamination table 10, the variable distance structure puts the adsorption plate 74 in the second state to meet the needs of adjacent pole pieces during the lamination process. spacing requirements.
上述的变距结构75可以包括直线气缸、限位块、复位弹簧等。直线气缸可以推动上述的悬臂上的滑块一同朝向一个方向移动,以减小相邻的吸附板74之间的距离。上述的限位块能够限制相邻的悬臂上的滑块之间的间距。上述的复位弹簧能够使相邻的悬臂之间的滑块位置复位,以增大相邻的吸附板74之间的距离。The above-mentioned pitch changing structure 75 may include a linear cylinder, a limiting block, a return spring, etc. The linear cylinder can push the slide blocks on the above-mentioned cantilevers to move in one direction together to reduce the distance between adjacent adsorption plates 74 . The above-mentioned limiting blocks can limit the distance between the sliding blocks on adjacent cantilevers. The above-mentioned return spring can reset the position of the slider between adjacent cantilever arms to increase the distance between adjacent adsorption plates 74 .
(3)、叠片过程(3), lamination process
根据上述铺膜机构50以及上料搬运机构70的结构,以下以实施例二的隔膜供料机构40和实施例二的铺膜机构50为例,详细介绍本实施例中叠片装置的叠片过程:According to the structures of the film laying mechanism 50 and the loading and transporting mechanism 70 mentioned above, the following takes the diaphragm feeding mechanism 40 of the second embodiment and the film laying mechanism 50 of the second embodiment as examples to introduce in detail the lamination of the lamination device in this embodiment. process:
1、上料搬运机构70在叠片台10上放置一排正极片;1. The loading and transporting mechanism 70 places a row of positive electrode sheets on the stacking table 10;
2、支撑架51移动至靠近第一隔膜供料机构41,第一夹膜结构52抓取隔膜;2. The support frame 51 moves close to the first diaphragm feeding mechanism 41, and the first membrane sandwich structure 52 grabs the diaphragm;
3、支撑架51移动至靠近第二隔膜供料机构42处,第一切断结构切断隔膜,第一夹膜结构52松开隔膜,第二夹膜结构53抓取隔膜;3. The support frame 51 moves to a position close to the second diaphragm feeding mechanism 42, the first cutting structure cuts off the diaphragm, the first sandwich structure 52 loosens the diaphragm, and the second sandwich structure 53 grabs the diaphragm;
3、上料搬运机构70在叠片台10上放置一排负极片;3. The loading and transporting mechanism 70 places a row of negative electrode sheets on the stacking table 10;
4、支撑架51移动至靠近第一隔膜供料机构41,第二切断结构切断隔膜,第二夹膜结构53松开隔膜,第一夹膜结构52抓取隔膜;4. The support frame 51 moves close to the first diaphragm feeding mechanism 41, the second cutting structure cuts off the diaphragm, the second sandwich structure 53 loosens the diaphragm, and the first sandwich structure 52 grabs the diaphragm;
往复进行上述的步骤1至步骤4,即可以进行“正极片-隔膜-负极片-隔膜”形式的堆叠,从而形成电芯。形成电芯的数量取决于滑动切割台62一次进行制片的数量。在本实施例中,滑动切割台62一次进行十二个极片的制片,因此叠片台10一次能够堆叠十二个电芯。Repeat the above-mentioned steps 1 to 4, that is, stacking in the form of "positive electrode sheet-separator-negative electrode sheet-separator" can be performed to form a battery core. The number of cells formed depends on the number of slices produced by the sliding cutting table 62 at one time. In this embodiment, the sliding cutting table 62 produces twelve pole pieces at a time, so the stacking table 10 can stack twelve cells at a time.
在本实施例中,正极片制片机构22和负极片制片机构32的高速循环制片,配合铺膜机构50的高速往复移动,实现了叠片装置的高速叠片,极大的提高了制片效率。In this embodiment, the high-speed cyclic production of the positive electrode sheet making mechanism 22 and the negative electrode sheet making mechanism 32 cooperates with the high-speed reciprocating movement of the film laying mechanism 50 to realize high-speed lamination of the lamination device, which greatly improves the Production efficiency.
五、电芯下料及后续处理5. Battery core cutting and subsequent processing
当正极片、负极片和隔膜在叠片台10完成叠片后,需要对多个电芯进行下料并进行后续处理。After the positive electrode sheet, negative electrode sheet and separator are stacked on the lamination station 10, multiple battery cells need to be unloaded and subsequently processed.
如图1和图25所示,在本实施例的技术方案中,叠片装置还包下料搬运机构90。具体而言,下料搬运机构90可以包括多个下料夹爪(图25所示的内容),下料夹爪的数量与电芯的数量适配。多个下料夹爪均安装在安装架上,下料夹爪能够从侧部夹住电芯。安装架能够通过直线机构在X、Y和Z方向移动,从而将电芯由叠片台10进行搬运下料并进行后续的处理。As shown in Figures 1 and 25, in the technical solution of this embodiment, the stacking device also includes a material conveying mechanism 90. Specifically, the blanking and conveying mechanism 90 may include a plurality of blanking clamps (as shown in FIG. 25 ), and the number of blanking clamps is adapted to the number of battery cores. Multiple unloading clamping jaws are installed on the mounting frame, and the unloading clamping jaws can clamp the battery core from the side. The mounting frame can move in the X, Y and Z directions through a linear mechanism, so that the cells can be transported and unloaded from the stacking table 10 for subsequent processing.
如图1所示,在本实施例的技术方案中,叠片装置还包括依次设置在叠片台10的下游的热切机构110、贴胶机构120和热压机构100。并且三者位于下料搬运机构90的移动路径上。As shown in FIG. 1 , in the technical solution of this embodiment, the laminating device also includes a hot cutting mechanism 110 , a glue applying mechanism 120 and a hot pressing mechanism 100 which are sequentially arranged downstream of the laminating table 10 . And the three are located on the moving path of the unloading and conveying mechanism 90 .
具体而言,叠片台10完成叠片的多个电芯中,一方面正极片、隔膜和电芯依然处于松散状态,另一方面相邻的电芯之间的隔膜尚未切断。因此在后续处理中,多个电芯先通过热切机构110,将相邻的电芯之间的隔膜进行切断。然后单个电芯通过贴胶机构120,对电芯的边缘进行贴胶,从而实现电芯的封边。最后单个电芯需要通过热压机构100进行压紧密实,完成电芯的加工。随后,电芯即完成叠片工艺,可以从叠片装置流转出并进行下一道工艺。Specifically, among the multiple cells that have been stacked by the lamination station 10, on the one hand, the positive electrode sheet, the separator and the cells are still in a loose state, and on the other hand, the separators between adjacent cells have not been cut off. Therefore, in the subsequent processing, multiple electric cores first pass through the cutting mechanism 110 to cut off the separators between adjacent electric cores. Then, the edge of the single battery core is glued through the gluing mechanism 120 to achieve edge sealing of the battery core. Finally, a single battery core needs to be compacted by the hot pressing mechanism 100 to complete the processing of the battery core. Subsequently, the battery core completes the lamination process and can be transferred from the lamination device to the next process.
当然,叠片装置可以根据实际需要增加后续处理的工位。Of course, the stacking device can add subsequent processing stations according to actual needs.
本申请还提供了一种电池生产线,根据本申请的电池生产线包括上述的叠片装置。This application also provides a battery production line. The battery production line according to this application includes the above-mentioned lamination device.
显然,上述实施例仅仅是为清楚地说明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Obviously, the above-mentioned embodiments are only examples for clear explanation and are not intended to limit the implementation. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. An exhaustive list of all implementations is neither necessary nor possible. The obvious changes or modifications derived therefrom are still within the protection scope of the present invention.
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CN212113908U (en) * | 2020-04-26 | 2020-12-08 | 天津市捷威动力工业有限公司 | A lamination device for improving the folds of lithium-ion battery separators |
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CN212113908U (en) * | 2020-04-26 | 2020-12-08 | 天津市捷威动力工业有限公司 | A lamination device for improving the folds of lithium-ion battery separators |
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