CN114744297B - Lamination reflux unit and battery production line - Google Patents

Lamination reflux unit and battery production line Download PDF

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Publication number
CN114744297B
CN114744297B CN202210468071.9A CN202210468071A CN114744297B CN 114744297 B CN114744297 B CN 114744297B CN 202210468071 A CN202210468071 A CN 202210468071A CN 114744297 B CN114744297 B CN 114744297B
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Prior art keywords
lamination
station
pressing
follower
jig
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CN202210468071.9A
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CN114744297A (en
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请求不公布姓名
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Guangdong Lyric Robot Automation Co Ltd
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Guangdong Lyric Robot Intelligent Automation Co Ltd
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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
    • H01M10/0404—Machines for assembling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/58—Belts or like endless load-carriers with means for holding or retaining the loads in fixed position, e.g. magnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B65G47/68—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices adapted to receive articles arriving in one layer from one conveyor lane and to transfer them in individual layers to more than one conveyor lane or to one broader conveyor lane, or vice versa, e.g. combining the flows of articles conveyed by more than one conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G57/00—Stacking of articles
    • B65G57/02—Stacking of articles by adding to the top of the stack
    • B65G57/11—Stacking of articles by adding to the top of the stack the articles being stacked by direct action of the feeding conveyor
    • 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
    • H01M10/052—Li-accumulators
    • 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
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a lamination reflux device and a battery production line, wherein the lamination reflux device comprises a lamination jig, a lamination station, a conveying assembly and a reflux assembly, the lamination jig comprises a lamination platform and a plurality of pressing cutters arranged on two sides of the lamination platform, opening and closing assemblies for controlling the pressing cutters to open and close are arranged on two sides of the lamination station, the reflux assembly comprises a first lifting component, a second lifting component and a reflux conveying chain, the reflux conveying chain is arranged between the first lifting component and the second lifting component, the lamination station and the hot-pressing station are arranged between the first lifting component and the second lifting component, the lamination jig can sequentially pass through the lamination station and the hot-pressing station under the action of the conveying assembly, stacking of pole pieces and hot-pressing of a battery core are completed, automatic reflux conveying of the lamination jig is realized through the reflux device, conveying efficiency and utilization efficiency of the lamination jig are improved, and production efficiency of the battery core is improved.

Description

Lamination reflux unit and battery production line
Technical Field
The invention relates to the field of production of battery core laminates, in particular to a laminate reflux device and a battery production line.
Background
The lithium battery has the advantages of high energy, no memory effect, no pollution, small self-discharge, long cycle life and the like, and is widely applied to various devices, and the battery core is a core component of the lithium battery in a composition structure and is generally formed by mutually staggered and overlapped positive and negative plates. The battery cell composition structure comprises a plurality of positive and negative plates which are overlapped up and down in a staggered way, and the positive and negative plates are isolated and insulated through a diaphragm. In the existing lamination process, after lamination is completed on a lamination jig, a pole piece assembly is generally transferred to other stations through a manipulator grabbing mode for hot pressing, dislocation can occur in the pole piece assembly in the process of taking, discharging and transferring to affect lamination efficiency, the pole piece assembly needs to be positioned for a plurality of times to ensure alignment, the time consumed by the plurality of times of positioning is long, and the production efficiency of an electric core is affected.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the lamination reflow device which can reflow and convey the lamination jig and improve the production efficiency of the battery core.
The invention also provides a battery production line with the lamination reflow device.
According to a first aspect of the present invention, a lamination reflow apparatus includes
The lamination jig is provided with at least two lamination jigs, and comprises a lamination platform and a plurality of pressing cutters arranged on two sides of the lamination platform;
the two sides of the lamination station are provided with opening and closing components for controlling the pressing knife to open and close;
a hot pressing station;
a transport assembly;
a reflow assembly including a first lifting member, a second lifting member, and a reflow conveyor chain disposed between the first lifting member and the second lifting member;
the lamination station and the hot pressing station are arranged between the first lifting component and the second lifting component, and the conveying assembly conveys the lamination jig to sequentially pass through the lamination station and the hot pressing station.
According to the embodiment of the first aspect of the invention, the lamination reflux device has at least the following beneficial effects: the invention relates to a lamination reflux device, which comprises a lamination jig, a lamination station, a hot-pressing station, a conveying assembly and a reflux assembly, wherein the lamination jig comprises a lamination platform and a plurality of pressing cutters arranged on two sides of the lamination platform, the two sides of the lamination station are provided with opening and closing assemblies for controlling the opening and closing of the pressing cutters, the reflux assembly comprises a first lifting part, a second lifting part and a reflux conveying chain, the reflux conveying chain is arranged between the first lifting part and the second lifting part, the lamination station and the hot-pressing station are arranged between the first lifting part and the second lifting part, the lamination jig can sequentially pass through the lamination station and the hot-pressing station under the action of the conveying assembly, the lamination jig is used for completing the stacking of pole pieces and the hot-pressing of battery cores, the pole pieces do not need to be transported and positioned for a plurality of times, and the production efficiency and the lamination quality are improved; realize carrying lamination tool's automatic reflux through reflux unit, improve conveying efficiency and utilization efficiency to lamination tool.
According to some embodiments of the invention, the pressing blade comprises a diaphragm pressing blade and a plurality of pole piece pressing blades, wherein the diaphragm pressing blade is arranged at two sides of the pole piece pressing blade.
According to some embodiments of the invention, the opening and closing assembly comprises a first opening and closing member for controlling the opening and closing of the diaphragm pressing blade and a second opening and closing member for controlling the opening and closing of the pole piece pressing blade.
According to some embodiments of the invention, the opening and closing components are arranged at two sides of the lamination station, two opening and closing components are arranged at each side of the lamination station, and the two opening and closing components are symmetrically arranged at the head end and the tail end of the lamination station so as to stack the positive electrode plate and the negative electrode plate respectively.
According to some embodiments of the present invention, the pressing tool includes a tool body, a first follower member driving the tool body to move longitudinally, and a second follower member driving the tool body to move laterally, the first follower member including a first rail slide, a first moving plate slidable on the first rail slide, and a first follower disposed on the first moving plate, the second follower member including a second rail slide, a second moving plate slidable on the second rail slide, and a second follower disposed on the second moving plate.
According to some embodiments of the invention, the shutter assembly includes a first cam follower plate for cooperating with the first follower, a second cam follower plate for cooperating with the second follower, a first drive member for driving the first cam follower plate to move longitudinally, and a second drive member for driving the second cam follower plate to move laterally.
According to some embodiments of the invention, the lamination station is provided with a positioning device, the positioning device comprises an adsorption component and a limiting component, and the limiting component is arranged on two sides of the adsorption component.
According to some embodiments of the invention, the transport assembly comprises a first transport member, a second transport member and a third transport member, the first transport member and the second transport member transporting the reciprocating movement of the lamination stage over the lamination station, the third transport member transporting the lamination stage to the hot press station.
According to some embodiments of the invention, a feeding station and a discharging station are further provided, the feeding station is arranged on one side of the lamination station, the discharging station is arranged on one side of the hot pressing station, the first lifting component is arranged on the feeding station, and the second lifting component is arranged on the discharging station.
A battery production line according to an embodiment of the second aspect of the present invention includes a lamination reflow apparatus according to the embodiment of the first aspect.
The battery production line according to the embodiment of the second aspect of the invention has at least the following beneficial effects: according to the battery production line, the lamination reflux device in the embodiment of the first aspect comprises the lamination jig, the lamination station, the conveying assembly and the reflux assembly, the lamination jig can sequentially pass through the lamination station and the hot-pressing station under the action of the conveying assembly to complete stacking of pole pieces and hot-pressing of battery cells, automatic reflux conveying of the lamination jig is achieved through the reflux device, conveying efficiency and utilization efficiency of the lamination jig are improved, and production efficiency of the battery cells is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a laminated reflow apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angle of the laminated reflow apparatus shown in FIG. 1;
FIG. 3 is a schematic view of the lamination station shown in FIG. 1;
FIG. 4 is a schematic view of the opening and closing assembly shown in FIG. 1;
fig. 5 is a schematic view of the structure of the pressing blade shown in fig. 1.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, inner, outer, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, mounting, connection, assembly, cooperation, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical solution.
A laminated sheet reflow apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
The lamination reflux device comprises a lamination jig 100, a lamination station 200, a hot pressing station 400, a conveying assembly and a reflux assembly, wherein the lamination jig 100 comprises a lamination platform and a plurality of pressing cutters arranged on two sides of the lamination platform, a diaphragm is arranged on the lamination platform, a pole piece is arranged on the diaphragm, the pressing cutters compress the diaphragm and the pole piece, and the diaphragm and the pole piece are stacked in sequence conveniently. The lamination station 200 is used for stacking pole pieces, the two sides of the lamination station 200 are provided with opening and closing components for controlling the opening and closing of the pressing cutters, the opening and closing components control the opening and closing of the pressing cutters, the conveying components convey the lamination jig 100, the lamination jig 100 is conveyed to the lamination station 200 under the action of the conveying components, the opening and closing components at the two sides of the lamination station 200 are matched with the pressing cutters at the two sides of the lamination platform, the opening and closing of the pressing cutters can be controlled, and the placement and the compression of the pole pieces are completed. The folding component is arranged on two sides of the lamination station 200, the pressing knife is arranged on the lamination platform, the folding component serving as a power source is arranged in a split mode with the pressing knife, moving mass and inertia during opening of the pressing knife can be reduced, load during opening of the pressing knife is reduced, stability of mechanical movement is guaranteed, multiple pole pieces can be stacked and pressed simultaneously, and stacking efficiency of the pole pieces is improved. The conveying assembly conveys the lamination jig 100 to the hot-pressing station 400, and the hot-pressing station 400 carries out hot pressing on the battery cells to finish hot-pressing shaping on the battery cells. The reflow assembly is used for carrying lamination jig 100, the reflow assembly includes first elevating component 610, second elevating component 620 and reflow conveying chain 630, reflow conveying chain 630 sets up between first elevating component 610 and second elevating component 620, lamination station 200 and hot pressing station 400 set gradually between first elevating component 610 and second elevating component 620, conveying assembly carries lamination jig 100 to pass through lamination station 200 and hot pressing station 400 in proper order, after accomplishing stacking to the pole piece and hot pressing to the electric core, conveying assembly carries lamination jig 100 to second elevating component 620 department. The second lifting member 620 drives the lamination jig 100 to descend onto the reflow conveyor chain 630, the reflow conveyor chain 630 conveys the lamination jig 100, the lamination jig 100 is conveyed to the first lifting member 610, the first lifting member 610 drives the lamination jig 100 to ascend, and the conveying assembly conveys the lamination jig 100 for lamination and hot pressing of the next round. The automatic reflow conveying of the lamination jig 100 can be realized through the reflow device, and the conveying efficiency and the utilization efficiency of the lamination jig 100 are improved. The stacking and hot pressing of the pole pieces are completed on the lamination jig 100, the pole pieces do not need to be transported and positioned for many times, and the production efficiency and lamination quality are improved. It can be appreciated that, the lamination jig 100 is provided with at least two lamination jigs, and when one lamination jig 100 reflows on the reflow conveyor chain 630, at least one lamination jig 100 is in the cell production stage, so that the production equipment can be fully utilized, and the cell production efficiency is improved.
In some embodiments, a pre-cut station 300 is also provided between lamination station 200 and hot press station 400. The pre-cutting station 300 is used for cutting the diaphragm, the conveying assembly conveys the lamination jig 100 from the lamination station 200 to the pre-cutting station 300, and as a plurality of pole pieces are stacked on the diaphragm at the same time, the pre-cutting station 300 cuts the diaphragm, and can cut the diaphragm into a plurality of battery cells according to the number of the pole pieces to form a plurality of battery cells so as to facilitate subsequent hot-pressing of the battery cells, ensure that interference is not caused between different battery cells when the battery cells are hot-pressed, and ensure the hot-pressing effect of the battery cells.
Referring to fig. 3 and 5, according to some embodiments of the present invention, the pressing blade includes a diaphragm pressing blade 121 and a plurality of pole piece pressing blades 122, the diaphragm pressing blade 121 is provided with two, and the two diaphragm pressing blades 121 are provided at both sides of the pole piece pressing blade 122. The diaphragm pressing knife 121 is used for pressing the diaphragm, so that the position of the diaphragm is stable in the pole piece placement process. After the pole piece is placed, the pole piece pressing knife 122 presses the pole piece so as to lay the diaphragm on the pole piece and ensure the stability of the pole piece position. The two diaphragm pressing cutters 121 are arranged on two sides of the pole piece pressing cutter 122, and can simultaneously or respectively press the diaphragms on two sides of the pole piece according to the requirement, so that the applicability is improved. It will be appreciated that in some embodiments, the pole piece pressing cutters 122 are provided in four, and the four pole piece pressing cutters 122 can correspondingly stack four pole pieces at the same time, so as to improve the stacking efficiency of the pole pieces. It is understood that in some other embodiments, the pole piece presser 122 may be configured to be three, five, six or other numbers depending on the actual production requirements, and are within the scope of the present invention.
Referring to fig. 3 and 5, according to some embodiments of the present invention, a pressing tool includes a tool body 123, a first follower member for driving the tool body 123 to move longitudinally, the first follower member including a first rail-slide 126, a first moving plate slidable on the first rail-slide 126, and a first follower 124 provided on the first moving plate, and a second follower member for driving the tool body 123 to move laterally, the second follower member including a second rail-slide 127, a second moving plate slidable on the second rail-slide 127, and a second follower 125 provided on the second moving plate. The conveying assembly conveys the lamination jig 100, the lamination jig 100 is conveyed to the lamination station 200 under the action of the conveying assembly, the opening and closing assemblies at two sides of the lamination station 200 are matched with the pressing knives at two sides of the lamination platform, the opening and closing assemblies can control the opening and closing of the pressing knives, specifically, the opening and closing assemblies are matched with the first follower 124 to drive the first follower 124 to move, the first follower 124 drives the first moving plate to move relative to the first guide rail sliding seat 126, the longitudinal movement of the cutter body 123 is realized, and the cutter body 123 moves upwards to be separated from the diaphragm; the opening and closing assembly is matched with the second follower 125, drives the second follower 125 to move, can drive the second movable plate to move relative to the second guide rail sliding seat 127, realizes the transverse movement of the cutter body 123, enables the cutter body 123 to move out above the diaphragm, avoids the interference between the cutter body 123 and the pole piece, and facilitates the stacking of the subsequent pole pieces. In some embodiments, the first follower 124 and the second follower 125 are configured as a follower wheel or ball, each of which is capable of rolling relative to the opening and closing assembly, reducing friction between the first follower 124 and the second follower 125 and the opening and closing assembly, and smoothing movement of the first follower 124 and the second follower 125 relative to the opening and closing assembly. The first follow-up part and the second follow-up part are provided with first extension spring 128 and second extension spring 129 respectively, and first extension spring 128 can be taut to first movable plate, and second extension spring 129 can be taut to the second movable plate, and after first follow-up part and second follow-up part break away from the subassembly that opens and shuts, first extension spring 128 and second extension spring 129 can pull cutter body 123 to reset, and cutter body 123 carries out lateral movement and longitudinal movement, compresses tightly the pole piece on diaphragm and the diaphragm, guarantees the stability of pole piece on the diaphragm.
Referring to fig. 4, according to some embodiments of the present invention, the opening and closing assembly includes a first cam follower plate 133 for cooperation with the first follower 124, a second cam follower plate 134 for cooperation with the second follower 125, a first driving part 135 driving the first cam follower plate 133 to move longitudinally, and a second driving part 136 driving the second cam follower plate 134 to move laterally. The opening and closing assembly comprises a first cam follower 133, a second cam follower 134, a first driving component 135 and a second driving component 136, wherein the first driving component 135 can drive the first cam follower 133 to longitudinally move, the second driving component 136 can drive the second cam follower 134 to transversely move, the first cam follower 133 is matched with the first follower 124, and the second cam follower 134 is matched with the second follower 125 to drive the pressing knife to transversely move and longitudinally move. Specifically, when the lamination jig 100 is conveyed to the lamination station 200 under the action of the conveying component, the pressing knives on two sides of the lamination jig 100 are in contact with the opening and closing components on two sides of the lamination station 200, at this time, the first follower 124 is clamped into the first cam follower plate 133, the second follower 125 is clamped into the second cam follower plate 134, the first driving component 135 drives the first cam follower plate 133 to move longitudinally, the second driving component 136 drives the second cam follower plate 134 to move transversely, so that the movement of the cutter body 123 relative to the diaphragm and the pole piece can be realized, and the compression and the release of the cutter body 123 are controlled. It should be noted that, in some embodiments, the first follower 124 and the second follower 125 are configured as follower wheels, the first cam follower plate 133 and the second cam follower plate 134 are provided with limiting grooves for moving the follower wheels, when the lamination jig 100 is conveyed to the lamination station 200 under the action of the conveying assembly, the pressing knives on two sides of the lamination jig 100 are contacted with the opening and closing assemblies on two sides of the lamination station 200, and the follower wheels are clamped into the limiting grooves to realize connection between the opening and closing assemblies and the pressing knives. It will be appreciated that in some embodiments, the first drive member 135 and the second drive member 136 are provided as linear motors. The first driving part 135 and the second driving part 136 are arranged at two sides of the lamination station 200 and are separated from the lamination station 200, so that the mass and the motion inertia of the opening and closing assembly can be reduced, and the opening and closing of the pressing knife can be facilitated.
Referring to fig. 1, 2 and 4, according to some embodiments of the present invention, the opening and closing assembly includes a first opening and closing member 131 for controlling the opening and closing of the diaphragm pressing blade 121 and a second opening and closing member 132 for controlling the opening and closing of the pole piece pressing blade 122. The first opening and closing part 131 and the second opening and closing part 132 respectively control the diaphragm pressing knife 121 and the pole piece pressing knife 122, specifically, when the lamination jig 100 is conveyed to the lamination station 200 under the action of the conveying component, the second opening and closing part 132 controls the pole piece pressing knife 122 to open, and the first opening and closing part 131 controls the diaphragm pressing knife 121 to press the diaphragm, so that the position of the diaphragm is ensured to be stable in the pole piece placement process. After the pole piece is placed, the second opening and closing component 132 controls the pole piece pressing knife 122 to press the pole piece so as to lay the diaphragm on the pole piece and ensure the stability of the pole piece position.
Referring to fig. 1 and 2, according to some embodiments of the present invention, the opening and closing assemblies are disposed at both sides of the lamination station 200, and two opening and closing assemblies are disposed at both ends of the lamination station 200 symmetrically to stack the positive and negative electrode sheets, respectively, at each side of the lamination station 200. The two opening and closing assemblies control the pressing knife, so that the pressing knife can be opened and closed twice to stack the positive electrode plate and the negative electrode plate respectively. Specifically, the two opening and closing assemblies are arranged at the front end and the rear end of the lamination station 200, the lamination jig 100 moves back and forth on the lamination station 200 under the action of the conveying assembly, and the positive plate and the negative plate are respectively stacked at the front end and the rear end of the lamination station 200, so that the stacking efficiency of the pole pieces is improved. The opening and closing components are arranged on two sides of the lamination station 200, and two opening and closing components are arranged on each side of the lamination station 200, so that pole pieces can be stacked on two sides, the stacking quantity of the pole pieces is increased, and the stacking efficiency of the pole pieces is improved.
Referring to fig. 1 and 2, a preheating component for heating the cells is also provided under the lamination stage according to some embodiments of the invention. The conveying assembly conveys the lamination jig 100, and the lamination jig 100 sequentially passes through the lamination station 200, the pre-cutting station 300 and the hot-pressing station 400 to finish stacking of pole pieces, cutting of diaphragms and hot-pressing of battery cells. Lamination tool 100 includes the lamination platform, and lamination platform below is provided with preheating component, and diaphragm and pole piece are placed on the lamination platform, and preheating component can preheat pole piece and diaphragm, is favorable to going on of follow-up hot pressing technology, improves electric core production efficiency.
Referring to fig. 1 and 2, according to some embodiments of the present invention, a positioning device 210 is provided on a lamination station 200, and the positioning device includes an adsorption member 211 for adsorbing a lamination platform and a limiting member 212 for limiting the lamination platform, and the limiting member 212 is provided at both sides of the adsorption member 211. The positioning device 210 is movably arranged on the lamination station 200, the positioning device 210 is used for positioning the lamination platform, the positioning device 210 comprises an adsorption component 211 and a limiting component 212, the limiting component 212 is arranged on two sides of the adsorption component 211, the adsorption component 211 adsorbs the lamination platform, the limiting component 212 is matched with the lamination platform, the lamination platform is fixed on the positioning device, and limiting of the lamination platform is completed. Specifically, the limiting component 212 is set to be a limiting pin, the lamination platform is provided with a limiting hole corresponding to the limiting pin, the adsorption component 211 adsorbs the lamination platform, so that the limiting hole is correspondingly installed in the limiting pin, and positioning and limiting of the lamination platform are completed. It will be appreciated that in some embodiments, the suction members 211 are provided as electromagnets and the lamination platforms are provided with corresponding electromagnets so that the suction members 211 suck the lamination platforms.
Referring to fig. 1 and 2, according to some embodiments of the present invention, the transport assembly includes a first transport member 510, a second transport member 520, and a third transport member 530, the first transport member 510 and the second transport member 520 being for effecting a reciprocating movement of the lamination stage over the lamination station 200, the third transport member 530 being for transporting the lamination stage to the hot press station 400. The first conveying component 510 and the second conveying component 520 are arranged in the lamination station 200, the first conveying component 510 comprises a first conveying belt and a first lifting component arranged below the first conveying belt, the second conveying component 520 comprises a second conveying belt and a second lifting component arranged below the second conveying belt, the third conveying component 530 comprises a third conveying belt and a third lifting component arranged below the third conveying belt, the first conveying belt and the second conveying belt are matched, the reciprocating motion of the lamination platform on the lamination station 200 can be achieved, and stacking of pole pieces is completed. The first conveying component 510 includes a first conveying belt and a first lifting component disposed below the first conveying belt, and the first lifting component can lift the first conveying belt and the lamination jig 100 placed on the first conveying belt, and can convey the lamination jig 100 from the first conveying belt to the second conveying belt, so that the lamination jig 100 is transported. The second conveying component 520 includes a second conveying belt and a second lifting component disposed below the second conveying belt, and the second lifting component can lift the second conveying belt and the lamination jig 100 placed on the second conveying belt, and can convey the lamination jig 100 from the second conveying belt to the third conveying belt, so that the lamination jig 100 is transported. It can be understood that the baffle plates are arranged on the first conveying belt, the second conveying belt and the third conveying belt, the baffle plates are arranged on two sides of the first conveying belt, the second conveying belt and the third conveying belt, the baffle plates can clamp two ends of the lamination jig 100, slipping caused by insufficient friction force is avoided, conveying capacity of the first conveying belt, the second conveying belt and the third conveying belt to the lamination jig 100 is improved, and movement of the lamination jig 100 on the first conveying belt, the second conveying belt and the third conveying belt is more stable.
Referring to fig. 1 and 2, according to some embodiments of the present invention, a loading station and a discharging station are further provided, the loading station is disposed at one side of the lamination station 200, the discharging station is disposed at one side of the hot pressing station 400, the first elevation member 610 is disposed on the loading station, and the second elevation member 620 is disposed on the discharging station. The feeding station and the discharging station are respectively arranged at two ends of the lamination reflux device, the feeding station is arranged at one side of the lamination station 200, the discharging station is arranged at one side of the hot pressing station 400, the first lifting part 610 is arranged on the feeding station, the second lifting part 620 is arranged on the discharging station, the reflux conveying chain 630 is arranged between the first lifting part 610 and the second lifting part 620, the lamination station 200, the pre-cutting station 300 and the hot pressing station 400 are sequentially arranged between the first lifting part 610 and the second lifting part 620, the conveying assembly conveys the lamination jig 100 to sequentially pass through the lamination station 200, the pre-cutting station 300 and the hot pressing station 400, and after stacking of pole pieces, cutting of a diaphragm and hot pressing of a battery core are completed, the conveying assembly conveys the lamination jig 100 to the second lifting part 620. The second lifting member 620 drives the lamination jig 100 to descend onto the reflow conveyor chain 630, the reflow conveyor chain 630 conveys the lamination jig 100, the lamination jig 100 is conveyed to the first lifting member 610, the first lifting member 610 drives the lamination jig 100 to ascend, and the conveying assembly conveys the lamination jig 100 for lamination, cutting and hot pressing of the next round. The automatic reflow conveying of the lamination jig 100 can be realized through the reflow device, and the conveying efficiency and the utilization efficiency of the lamination jig 100 are improved.
A battery production line (not shown) according to an embodiment of the second aspect of the present invention includes a lamination reflow apparatus according to the embodiment of the first aspect. According to the battery production line, by using the lamination reflow device in the embodiment of the first aspect, the battery production line comprises the lamination jig 100, the lamination station 200, the pre-cutting station 300, the hot pressing station 400, the conveying component and the reflow component, the lamination jig 100 can sequentially pass through the lamination station 200, the pre-cutting station 300 and the hot pressing station 400 under the action of the conveying component, stacking of pole pieces, cutting of a diaphragm and hot pressing of a battery core are completed, automatic reflow conveying of the lamination jig 100 is realized through the reflow device, conveying efficiency and utilization efficiency of the lamination jig 100 are improved, and production efficiency of the battery core is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims (10)

1. A laminated reflow apparatus, comprising:
the lamination jig is provided with at least two lamination jigs, and comprises a lamination platform and a plurality of pressing cutters arranged on two sides of the lamination platform;
the two sides of the lamination station are provided with opening and closing components for controlling the pressing knife to open and close;
a hot pressing station;
a transport assembly;
a reflow assembly including a first lifting member, a second lifting member, and a reflow conveyor chain disposed between the first lifting member and the second lifting member;
the lamination station and the hot pressing station are arranged between the first lifting component and the second lifting component, and the conveying assembly conveys the lamination jig to sequentially pass through the lamination station and the hot pressing station.
2. The lamination reflow apparatus of claim 1, wherein the knife comprises a diaphragm knife and a plurality of pole pieces, the diaphragm knife disposed on either side of the pole pieces.
3. A laminated reflow apparatus in accordance with claim 2, wherein the shutter assembly includes a first shutter member for controlling the shutter of the diaphragm presser and a second shutter member for controlling the shutter of the pole piece presser.
4. A laminated reflow apparatus according to claim 3, wherein the opening and closing members are provided on both sides of the lamination station, two opening and closing members are provided on each side of the lamination station, and the two opening and closing members are symmetrically provided on both ends of the lamination station so as to stack the positive electrode sheet and the negative electrode sheet respectively.
5. The lamination reflow apparatus of claim 1, wherein the pressing blade includes a blade body, a first follower member driving the blade body to move longitudinally, and a second follower member driving the blade body to move laterally, the first follower member including a first rail slide, a first moving plate slidable on the first rail slide, and a first follower disposed on the first moving plate, the second follower member including a second rail slide, a second moving plate slidable on the second rail slide, and a second follower disposed on the second moving plate.
6. A laminated reflow apparatus in accordance with claim 5, wherein the shutter assembly includes a first cam follower plate for engaging the first follower, a second cam follower plate for engaging the second follower, a first drive member for driving the first cam follower plate for longitudinal movement, and a second drive member for driving the second cam follower plate for lateral movement.
7. The lamination reflow apparatus of claim 1, wherein the lamination station is provided with a positioning device, the positioning device comprises an adsorption component and a limiting component, and the limiting component is arranged at two sides of the adsorption component.
8. A lamination reflow apparatus in accordance with claim 1, wherein the transport assembly comprises a first transport member, a second transport member and a third transport member, the first and second transport members transporting the lamination stage in a reciprocating motion over the lamination station, the third transport member transporting the lamination stage to the hot press station.
9. The lamination reflow apparatus of claim 1, further comprising a loading station and a unloading station, wherein the loading station is disposed on one side of the lamination station, the unloading station is disposed on one side of the hot press station, the first lifting member is disposed on the loading station, and the second lifting member is disposed on the unloading station.
10. A battery production line comprising a laminate reflow apparatus according to any one of claims 1 to 9.
CN202210468071.9A 2022-04-29 2022-04-29 Lamination reflux unit and battery production line Active CN114744297B (en)

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CN114744297B true CN114744297B (en) 2023-05-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209133621U (en) * 2018-11-15 2019-07-19 合肥国轩高科动力能源有限公司 A kind of power cell pole piece laser film-making and lamination integration apparatus
CN113675481A (en) * 2021-07-28 2021-11-19 深圳科瑞技术股份有限公司 Pole piece lamination device and lamination equipment
CN113745635A (en) * 2021-11-05 2021-12-03 三一技术装备有限公司 Lamination device and lamination method
DE202022100440U1 (en) * 2021-01-28 2022-02-28 Lg Energy Solution, Ltd. Secondary battery laminator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209133621U (en) * 2018-11-15 2019-07-19 合肥国轩高科动力能源有限公司 A kind of power cell pole piece laser film-making and lamination integration apparatus
DE202022100440U1 (en) * 2021-01-28 2022-02-28 Lg Energy Solution, Ltd. Secondary battery laminator
CN113675481A (en) * 2021-07-28 2021-11-19 深圳科瑞技术股份有限公司 Pole piece lamination device and lamination equipment
CN113745635A (en) * 2021-11-05 2021-12-03 三一技术装备有限公司 Lamination device and lamination method

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