CN113594642B - Liquid injection device for battery production - Google Patents
Liquid injection device for battery production Download PDFInfo
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- CN113594642B CN113594642B CN202110845816.4A CN202110845816A CN113594642B CN 113594642 B CN113594642 B CN 113594642B CN 202110845816 A CN202110845816 A CN 202110845816A CN 113594642 B CN113594642 B CN 113594642B
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- assembly
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
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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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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a liquid injection device for battery production, which relates to the field of lithium battery processing and comprises a rack, wherein a lifting mechanism and a liquid injection mechanism are arranged on the rack, the lifting mechanism and the liquid injection mechanism are correspondingly arranged, the liquid injection mechanism comprises a plurality of injection nozzles, a sealing assembly is vertically and slidably arranged on an injection port of each injection nozzle, and the sealing assembly is provided with a sealing position for sealing the injection port and an injection position for exposing the injection port after being jacked up. After the injection is completed, the liquid drainage channel is blocked by the sealing component in the injection nozzle under the action of gravity, so that the electrolyte in the injection nozzle is prevented from dripping out and corroding mechanical equipment.
Description
Technical Field
The invention relates to a lithium battery processing technology, in particular to a liquid injection device for battery production.
Background
Lithium batteries are batteries in which metallic lithium is used as a negative electrode, and are also called lithium metal batteries. It is noted that lithium batteries are classified into primary batteries and secondary batteries according to the configuration of the batteries. Early lithium batteries were primary batteries, but because of the very active chemical properties of metallic lithium, their processing, storage, use have very high environmental requirements. In the production process of the lithium battery, a liquid injection device is required to be used for injecting liquid.
The name of the patent number "202010210931. X" is a battery liquid injection device, which comprises a frame, a liquid injection mechanism, a jacking mechanism and a battery bearing mechanism. Before liquid injection, the battery receiving shell to be injected with liquid can be placed in the battery bearing mechanism at the feeding station. Then, the jacking driving piece drives the supporting rod to ascend, the supporting rod penetrates through the avoiding structure and jacks up the battery shell in the battery bearing mechanism until the battery shell which is jacked up is in butt joint with the liquid injection nozzle, and liquid injection is completed.
As in the prior art including the above patent, after the injection of the electrolyte is completed, the liquid discharge channel on the injection nozzle is still in an open state, and since some electrolyte is still remained in the injection nozzle, the electrolyte is generally a strong acid electrolyte or a strong alkaline electrolyte, and has a certain corrosiveness, so that the electrolyte is easily dripped out of the liquid discharge channel of the injection nozzle, and the injection device is corroded.
Disclosure of Invention
The invention aims to provide a liquid injection device for battery production, which is used for solving the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a liquid injection device for battery production comprises a frame, wherein a lifting mechanism and a liquid injection mechanism are arranged on the frame, the lifting mechanism and the liquid injection mechanism are correspondingly arranged, the liquid injection mechanism comprises a plurality of injection nozzles,
the injection nozzle is characterized in that a sealing assembly is vertically and slidably arranged on an injection port of the injection nozzle, and the sealing assembly is provided with a sealing position for sealing the injection port and an injection position for being ejected out of the injection port.
Preferably, a pressure applying assembly is further arranged in the injection nozzle, and the pressure applying assembly is used for applying pressure to the sealing assembly during liquid injection.
Preferably, the pressure applying assembly comprises a sealing slider slidably connected within the nozzle and a second spring connected between the nozzle and the sealing slider.
Preferably, the device further comprises two conveying mechanisms; and the two conveying mechanisms are respectively positioned at two ends of the lifting mechanism and are respectively used for feeding and discharging the battery box body.
Preferably, each conveying mechanism comprises two conveying wheels, and a conveying belt is sleeved on each conveying wheel.
Preferably, the conveying mechanism is provided with an intermittent transmission assembly, the intermittent transmission assembly comprises an active rotation member and a passive rotation member, the active rotation member comprises an active rotating shaft, a connecting rod and a driving shaft which are sequentially connected, the passive rotation member comprises a rotating disc arranged on a passive shaft, the rotating disc is provided with four transmission grooves 1.100 in a circle center array shape, the four transmission grooves 1.100 are radially arranged in the center, and the driving shaft is clamped into one transmission groove 1.100 under the driving of the active rotating shaft so as to drive the rotating disc to rotate for 90 degrees;
the driving rotating shaft receives the driving of a motor, and the driven shaft drives the conveying wheels to realize intermittent transmission.
Preferably, the rotating disc is provided with four first arc-shaped notches matched with the driving rotating shaft in an encircling manner, and the periphery of the driving rotating shaft is attached to the first arc-shaped notches in the driving rotating shaft to limit the rotating disc.
Preferably, the lifting mechanism comprises a lifting platform, and the end parts of the lifting platform are respectively connected with a roller in a rotating manner.
Preferably, the rack is further provided with a lifting assembly, and the lifting assembly is used for controlling the lifting mechanism to reciprocate in the vertical direction.
Preferably, the lifting assembly comprises a cam and a roller matched with the cam, and the roller moves on a stroke track of the cam.
In the technical scheme, the liquid injection device for battery production provided by the invention has the advantages that after liquid injection is completed, the liquid discharge channel is blocked by the sealing assembly in the injection nozzle under the action of gravity, so that the electrolyte in the injection nozzle is prevented from dripping out and corroding mechanical equipment.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic diagram of a cover plate of a liquid injection device according to an embodiment of the present invention;
fig. 2 is a schematic liquid injection diagram of a liquid injection device provided in an embodiment of the present invention;
fig. 3 is a schematic overall structure diagram of a liquid injection device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first pulley provided in an embodiment of the present invention;
FIG. 5 is a schematic view of the injection nozzle according to the embodiment of the present invention
FIG. 6 is a schematic view of a nozzle according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
fig. 8 is a schematic view of an installation structure of the material placing frame according to the embodiment of the present invention;
fig. 9 is a schematic view of an installation structure of a rectangular chute according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a frame according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an elastic reset assembly according to an embodiment of the present invention;
fig. 12 is a schematic view of a sealing plug according to an embodiment of the present invention;
fig. 13 is a schematic view of an engagement structure of the driving shaft and the rotating disk according to an embodiment of the present invention.
Description of reference numerals:
1. a frame; 1.1, a conveying mechanism; 1.10, rotating a disc; 1.100, a transmission groove 1.100; 1.11, driving rotating shaft; 1.110, connecting rod; 1.111, drive shaft; 1.13, a conveying wheel; 1.130, a first pulley; 1.12, a conveying belt; 1.2, a lifting mechanism; 1.20, a lifting platform; 1.201, a telescopic supporting column; 1.202, a roller; 1.2021, rollers; 1.202, cam; 1.203, a belt; 1.204, a second pulley; 1.3, a material placing frame; 1.300, a rectangular chute; 1.30, a frame body; 1.31, an elastic reset component; 1.310, a sliding rod; 1.311, a first sleeve; 1.312, a return spring; 1.32, a transmission rod; 1.34, a baffle; 1.35, a cover plate; 1.351, elastic bulges; 1.3510, a cavity; 1.3511, a hollow support part; 1.3512, a sealing plug; 1.35120, a first loop bar; 1.3514, a first spring; 1.3513, a second sleeve; 1.4, an injection mechanism; 1.40, an injection nozzle; 1.401, a second spring; 1.402, sealing the sliding block; 1.403, sealing the bump; 1.403, a second loop bar; 1.404, a fixed frame; 1.405, a liquid inlet channel; 2. an electric motor.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-13, a liquid injection device for battery production comprises a frame 1, wherein a lifting mechanism 1.2 and a liquid injection mechanism are arranged on the frame 1, the lifting mechanism 1.2 and the liquid injection mechanism are correspondingly arranged, the liquid injection mechanism comprises a plurality of injection nozzles 1.40, a sealing assembly is vertically arranged on an injection port of the injection nozzle 1.40 in a sliding manner, and the sealing assembly has a sealing position for sealing the injection port and an injection position for exposing the injection port after being jacked up.
Wherein, frame 1 is used for installing elevating system 1.2 and annotates liquid mechanism, elevating system 1.2 and notes liquid mechanism set up relatively in vertical direction, annotate liquid mechanism fixed mounting at the topmost of frame 1, be provided with elevating system 1.2 under annotating liquid mechanism, it includes a plurality of injection nozzle 1.40 to annotate liquid mechanism, the bottom of injection nozzle 1.40 is provided with drainage channel, through liquid inlet channel 1.405 through-connection between a plurality of injection nozzle 1.40, liquid inlet channel 1.405 is located the below of injection nozzle 1.40, and liquid inlet channel 1.405 and injection nozzle 1.40's drainage channel through-connection, through-connection has the feed liquor pipe with the coaxial axle center setting of feed liquor channel 1.405 on one of them injection nozzle 1.40, the feed liquor pipe is connected with the conveyor of electrolyte, and then carry electrolyte to in a plurality of injection nozzle 1.40 simultaneously.
The lifting mechanism 1.2 and the injection mechanism 1.4 are arranged oppositely, the lifting mechanism 1.2 can reciprocate in the vertical direction, the lifting mechanism 1.2 controls the lifting and resetting of the lifting mechanism 1.2 through a driving device, and a hydraulic driving mechanism is generally adopted to control the lifting and resetting of the lifting mechanism 1.2 in the prior art.
In this embodiment, preferably, a fixing frame 1.404 is fixedly connected to a bottom end of the injection nozzle 1.40, the fixing frame 1.404 is hollow, so that electrolyte can be discharged from the injection nozzle 1.40, the fixing frame 1.404 is sleeved in the liquid discharge channel of the injection nozzle 1.40, the sealing assembly can slide up and down in the liquid discharge channel, and further the liquid discharge channel is controlled to be opened or closed, wherein the sealing assembly comprises a second sleeve rod 1.403 sleeved on the fixing frame 1.404, the bottom end of the second sleeve rod 1.403 is provided with a protruding portion, a sealing bump 1.403 matched with the liquid discharge channel is fixedly connected to an upper end of the second sleeve rod 1.403, and the sealing bump 1.403 moves upwards to open the liquid discharge channel.
When the electrolyte is delivered into the plurality of injection nozzles 1.40 through the liquid inlet pipe, the liquid discharge channel of the injection nozzle 1.40 is in the closing device at this time, so that the electrolyte enters into the plurality of injection nozzles 1.40 at the same time, as shown in fig. 6, after the electrolyte completely fills the injection nozzle 1.40, the delivery of the electrolyte is stopped, at this time, the lifting mechanism 1.2 drives the battery case to move upwards, after the battery case is contacted with the protruding part on the second sleeve rod 1.403 on the injection nozzle 1.40, the lifting mechanism 1.2 continues to rise by a certain height until the battery case is contacted with the protruding part on the second sleeve rod 1.403, the force is applied to the second sleeve rod 1.403, at this time, the sealing lug 1.403 moves upwards, the liquid discharge channel on the injection nozzle 1.40 is opened, so that the electrolyte in the liquid injection nozzle flows into the battery case, at this time, the lifting mechanism 1.2 resets, so that the lifting mechanism 1.2 drives the battery case to move downwards, and when the battery case moves downwards, make battery case slowly break away from with annotating liquid mouth, and then receive ascending power and disappear on making second sleeve pole 1.403, under the effect of gravity, make second sleeve pole 1.403 drive sealed lug 1.403 and move down, and then make the drain passage on injection mouth 1.40 block up by sealed lug 1.403, as shown in fig. 5, realized closing the drain passage who annotates the liquid mouth, reciprocal above-mentioned process in proper order, realized after accomplishing to annotate the liquid, make the interior seal assembly of injection nozzle block up the drain passage under the effect of gravity, avoid the electrolyte in the injection nozzle to drip out, corrode mechanical equipment.
Referring to fig. 5 and 6, a pressure applying assembly is also provided in the nozzle 1.40 for applying pressure during injection.
Wherein the pressure applying assembly comprises a sealing slider 1.402 slidably connected within nozzle 1.40 and a second spring 1.401 connected between nozzle 1.40 and sealing slider 1.402.
Specifically, two convex blocks are arranged on the periphery of the sealing slide block 1.402, two limit grooves matched with the convex blocks are formed in the inner wall of the injection nozzle 1.40, and two ends of the second spring 1.401 are fixedly connected to the top end of the inner wall of the injection nozzle 1.40 and the sealing slide block 1.402 respectively.
When electrolyte is delivered into the injection nozzle 1.40, the sealing lug 1.403 is positioned below the nozzle of the injection nozzle 1.40, the liquid discharge channel is positioned in the closing device, when the electrolyte in the liquid injection nozzle gradually increases, the hydraulic pressure of the electrolyte in the injection nozzle 1.40 gradually increases, the electrolyte pushes the sealing slide block 1.402 to move upwards, the second spring 1.401 is stressed and compressed, and the sealing slide block 1.402 generates a downward sliding trend due to the trend of the second spring 1.401 for recovering the original length in the compression process, according to newton's third law, the sealing slide block 1.402 applies an upward acting force to the sealing slide block 1.402 and a downward acting force to the electrolyte, so that the sealing lug 1.403 is subjected to the pressure of the electrolyte and simultaneously also subjected to the vertical downward pressure applied to the electrolyte by the sealing slide block 1.402, and the sealing lug 1.403 can be tightly attached to the liquid discharge channel of the injection nozzle 1.40, further, the liquid discharge channel of the injection nozzle 1.40 is in a closed state, and liquid leakage is not easy to occur.
As shown with reference to fig. 1, 2, 3 and 4, two conveying means 1.1 are also included; the two conveying mechanisms 1.1 are respectively positioned at two ends of the lifting mechanism 1.2, and the two conveying mechanisms 1.1 are respectively used for feeding and discharging the battery shell.
Each conveying mechanism 1.1 comprises two conveying wheels 1.13, and a conveying belt 1.12 is sleeved between the two conveying wheels 1.13.
The conveying mechanism 1.1 is provided with an intermittent transmission assembly which is driven by a motor 2.
Specifically, two conveying mechanism 1.1 include material loading subassembly and ejection of compact subassembly, and material loading subassembly and ejection of compact subassembly level set up, make material loading subassembly and ejection of compact subassembly be located elevating system 1.2's both ends respectively, and material loading subassembly and ejection of compact subassembly flush each other with elevating system 1.2's initial position, and then make things convenient for battery case's pay-off and unloading.
Referring to fig. 1, 2, 3, 4 and 13, an intermittent transmission assembly is arranged on the conveying mechanism 1.1, the intermittent transmission assembly includes an active rotation member and a passive rotation member, the active rotation member includes an active rotation shaft 1.11, a connection rod 1.110 and a driving shaft 1.111 which are connected in sequence, the passive rotation member includes a rotation disc 1.10 arranged on the passive shaft, four transmission grooves 1.100 are arranged on the rotation disc 1.10 in a circle center array shape, the four transmission grooves 1.100 are arranged in a central radial shape, and the driving shaft 1.111 is driven by the active rotation shaft 1.11 to be clamped into one transmission groove 1.100 to drive the rotation disc 1.10 to rotate 90 degrees; the driving rotating shaft 1.11 receives the driving of the motor, and the driven shaft drives the conveying wheel to realize intermittent transmission.
Specifically, the rotating disc 1.10 is provided with four first arc-shaped notches matched with the driving rotating shaft 1.11 in an encircling manner, the periphery of the driving rotating shaft 1.11 is attached to the first arc-shaped notch of the driving rotating shaft 1.11 to limit the rotating disc 1.10, and the periphery of the driving rotating shaft 1.11 is provided with a second arc-shaped notch, so that the driving rotating shaft 1.11 cannot collide with the rotating disc 1.10 in the rotating process.
The motor 2 drives the driving rotating shaft 1.11 to rotate, the driving rotating shaft 1.11 drives one of the conveying wheels 1.13 to rotate, the conveying belt 1.12 is transmitted by the conveying wheel 1.13, the conveying belt 1.12 reciprocates in the horizontal direction, so that the charging and discharging of the battery shell are realized, when the driving rotating shaft 1.11 is attached to the rotating disc 1.10 to limit the rotating disc 1.10, when the driving rotating shaft 1.11 just rotates 180 degrees, the driving rotating shaft 1.11 just separates from the rotating disc 1.10, the driving rotating shaft 1.11 continues to rotate, the rotating disc 1.10 stops rotating, until the driving rotating shaft 1.11 just rotates 180 degrees, the driving shaft 1.111 on the connecting rod 1.110 fixedly connected to the driving rotating shaft 1.11 is inserted into one of the corresponding transmission grooves 1.100, at this time, the driving shaft 1.111 slides in the transmission grooves 1.100 and drives the rotating disc 1.10 to rotate, until the driving shaft 1.111 separates from the transmission grooves 1.100, the periphery of the driving rotating shaft 1.11 is just attached to the periphery of the driving rotating disc 1.10, the rotating disc 1.10 is limited, so that the rotating disc 1.10 is prevented from rotating due to inertia in the rotating process, the previous stroke is sequentially reciprocated, and the material can be fed intermittently.
Referring to fig. 1-4, the lifting mechanism 1.2 includes a lifting platform 1.20, and a roller 1.202 is rotatably connected to each end of the lifting platform 1.20.
The frame 1 is further provided with a lifting assembly, the lifting assembly is used for controlling the lifting mechanism 1.2 to reciprocate in the vertical direction, wherein the lifting assembly comprises a cam 1.202 and a roller 1.2021 matched with the cam 1.202, and the roller 1.2021 moves on the stroke track of the cam 1.202.
Specifically, the lifting platform 1.20 is mounted on the frame 1 through two telescopic supporting columns 1.201, the telescopic supporting columns 1.201 can be stretched in the vertical direction, two ends of the lifting platform 1.20 are rotatably connected with rollers 1.202, two ends of one roller 1.202 are fixedly connected with rollers 1.2021, one roller 1.202 is located at the discharging end of the lifting platform 1.20, the other roller 1.202 is located at the charging end of the lifting platform 1.20, the lifting assembly is arranged on the vertical line of the axis of the roller 1.2021, the lifting assembly comprises two coaxially arranged second belt wheels 1.204, the two second belt wheels 1.204 are connected through a connecting shaft, a cam 1.202 is coaxially and fixedly connected on the end surface of each second belt wheel 1.204, the end parts of the two conveying wheels 1.13 are fixedly connected with the second belt wheels 1.204, each first belt wheel 1.130 is connected with the second belt wheel 1.204 through a belt 1.203, and when the cam 1.202 rotates, a certain friction force exists between the cam 1.202 and the roller 1.2021, rotating the cam 1.202 causes the idler wheel 1.2021 to rotate at the same time, thereby causing one of the rollers 1.202 to rotate at the end of the elevator platform 1.20.
The two conveying mechanisms 1.1 are connected through the first belt wheel 1.130, the second belt wheel 1.204 and the belt 1.203, so that the two conveying mechanisms 1.1 can keep synchronous motion, the end faces of the two second belt wheels 1.204 are fixedly connected with the cams 1.202, the second belt wheel 1.204 drives the second cam 1.202 to rotate while rotating, and then the cam 1.202 acts on the roller 1.2021 when rotating to lift the lifting mechanism 1.2;
when the battery shell moves from the feeding assembly to the lifting mechanism 1.2, the battery shell slides on the feeding of the lifting table 1.2, because the battery shell just slides out of the feeding assembly and has certain inertia, the battery shell interacts with the other roller 1.202 at the feeding end of the lifting table 1.2, so that the other roller 1.202 rotates until the battery shell slides to interact with the cam 1.202 and one roller 1.2021 to slowly lift the lifting mechanism 1.2, and the battery shell interacts with the other roller 1.202 under the action of the inertia to slide on the lifting table 1.20, when the battery shell slides to just touch the other roller 1.202 on the lifting table 1.2, the battery shell stops sliding, the cam 1.202 drives the lifting table 1.20 to just lift to the highest point of the rotating disc 1.10 to stop rotating, at the moment, the conveying mechanism 1.1 stops, so that the battery shell just abuts against the injection nozzle 1.40, the battery shell applies force to the second sleeve rod 1.403, at this time, the sealing lug 1.403 is moved upwards, the liquid discharge channel on the injection nozzle 1.40 is opened, the second spring 1.401 pushes the sealing slide block 1.402 to slide downwards in the injection nozzle 1.40 under the action of elastic force, then the electrolyte in the injection nozzle 1.40 is extruded out, the electrolyte in the liquid injection nozzle flows into the battery shell, after the liquid injection is completed, the rotating disc 1.10 rotates again, the cam 1.202 rotates slowly from the highest point to the lowest point, the lifting mechanism 1.2 drives the battery shell to move downwards, the battery shell and the liquid injection nozzle are separated slowly, the upward force on the second sleeve rod 1.403 disappears, under the action of gravity, the second sleeve rod 1.403 drives the sealing lug 1.403 to move downwards, so that the liquid discharge channel on the injection nozzle 1.40 is blocked by the sealing lug 1.403, and the roller wheel 1.2021 is interacted with the cam 1.202 to drive the roller 1.2021 to rotate, and then another roller 1.202 at the tail end of the lifting sleeve rotates, so that the battery shell moves to the blanking assembly, and further the motor 2 drives the conveying mechanism 1.1 to feed in the horizontal direction and also drives the lifting mechanism 1.2 to reciprocate in the vertical direction at the same time, and the two paths with different motions are converted by one driving element.
Referring to fig. 1, 2, 3, 4, 7, 8, 9, 10, 11 and 12, the blanking device is mounted on the frame 1, and includes a frame 1.30 disposed below the material-placing frame 1.3 and a driving assembly disposed between the frame 1.30 and the material-placing frame 1.3, wherein the material-placing frame 1.3 is fixedly connected to the frame 1;
the driving assembly comprises a blanking assembly and an elastic resetting assembly 1.31, wherein the blanking assembly and the elastic resetting assembly are arranged between the frame body 1.30 and the blanking frame 1.3;
the blanking assembly comprises four baffles 1.34 connected to the blanking frame 1.3 in a sliding manner and a transmission rod 1.32, the end part of which is hinged between the baffles 1.34 and the frame body 1.30;
the elastic reset component 1.31 comprises a sleeve fixedly connected to the material placing frame 1.3, a sliding rod 1.310 fixedly connected to the frame body 1.30 and a reset spring 1.312 arranged between the sleeve and the sliding rod 1.310;
a plurality of cover plates 1.35 matched with the material placing frame 1.3 are arranged in the material placing frame 1.3, and the cover plates 1.35 are matched with the battery shell;
each cover plate 1.35 is provided with an airtight assembly matching the injection nozzle 1.40.
Specifically, the material placing frame 1.3 is fixedly and fixedly installed at the top end of the inner wall of the rack 1, a through groove matched with the material placing frame 1.3 is formed in a top plate of the rack 1, four rectangular sliding grooves 1.300 matched with the baffle plates 1.34 are formed in one side, close to the bottom end, of the material placing frame 1.3, the material placing frame is arranged above the material feeding assembly, the material feeding mechanism is used for placing the cover plate 1.35, the upper end and the lower end of the cover plate 1.35 are respectively provided with a plurality of elastic bulges 1.351 matched with the injection nozzle 1.40 and the liquid injection port of the battery shell, a cavity 1.3510 is formed between the two elastic bulges 1.351 in a through mode, an airtight assembly is arranged in the cavity 1.3510, the bottom end of the cavity 1.3510 is provided with a hollowed-out supporting portion 1.3511, the upper portion of the cavity 1.3510 is formed by superposing and combining a round table shape and a cylinder shape, as shown in fig. 7, the airtight assembly is coaxially sleeved in the hollowed-out portion, and comprises a second sleeve 1.3513, a first sleeve 1.35120, a second sleeve 1.3513, A first spring 1.3514 installed between the second sleeve 1.3513 and the first stem 1.35120, and a sealing plug 1.3512 fixedly connected to the top end of the first stem 1.35120, wherein the sealing plug 1.3512 is truncated cone-shaped, and the top end of the sealing plug 1.3512 has a hard convex column.
By placing the battery housing on the loading assembly, the battery housing is slid on the loading assembly until the battery housing is directly under the frame 1.30, the battery housing exerts an upward force on the frame 1.30, further, the frame body 1.30 moves upwards, so that the transmission rod 1.32 drives the baffle plate 1.34 to slide in the rectangular chute 1.30 of the discharging frame 1.3 while the sliding rod 1.310 of the battery shell moving to the frame body 1.30 slides in the first sleeve 1.311 by the reset spring 1.312 and is compressed by force until the baffle plate 1.34 slides to be level with the inner wall of the discharging frame 1.3, at the same time, the conveying wheel 1.13 on the conveying mechanism 1.1 stops rotating, so that after the cover plate 1.35 is covered right above the battery shell under the action of gravity, since the abutting force of the battery case to the frame body 1.30 disappears, the frame body 1.30 is reset downwards under the action of the elastic reset spring 1.312, so that the transmission rod 1.32 drives the baffle 1.34 to reset to prevent the cover plate 1.35 in the material placing rack 1.3 from moving.
The conveying wheel 1.13 on the conveying mechanism 1.1 starts to rotate, so that the battery housing is conveyed to the lifting mechanism 1.2, at this time, the cam 1.202 interacts with the roller 1.2021 to slowly lift the lifting mechanism 1.2, and the battery housing interacts with the other roller 1.202 under the action of inertia to slide on the lifting table 1.20, when the battery housing slides to just contact with the other roller 1.202, at this time, the cam 1.202 drives the lifting table 1.20 to just lift to the highest point, and at the same time, the rotating disc 1.10 stops rotating, at this time, the hard convex column on the sealing lug 1.403 on the cover plate 1.35 and the second sleeve rod 1.403 in the injection nozzle 1.40 just abut against each other, the second sleeve rod 1.403 drives the sealing lug 1.403 to move upwards, and at the same time, the second sleeve rod 1.403 exerts a downward force on the sealing plug 1.3512 on the cover plate 1.35, so that the 1.3512 drives the first sleeve rod 1.35120 to slide in the second sleeve 1.3513, so that the first spring 1.3514 is compressed, the cavity 1.3510 on the cover plate 1.35 and the drainage channel in the injection nozzle 1.40 are simultaneously opened, the sealing slide block 1.402 is pushed by the second spring 1.401 under the action of elastic force to slide downwards in the injection nozzle 1.40, and the electrolyte in the injection nozzle 1.40 is extruded out, so that the electrolyte in the injection nozzle flows into the battery shell.
After the liquid injection is completed, the rotating disc 1.10 rotates again, so that the cam 1.202 rotates slowly from the highest point to the lowest point, the lifting mechanism 1.2 drives the battery shell to move downwards, the battery shell is separated from the liquid injection nozzle slowly, further, the upward force on the second sleeve rod 1.403 disappears, under the action of gravity, the second sleeve rod 1.403 drives the sealing bump 1.403 to move downwards, further, the liquid discharge channel on the injection nozzle 1.40 is blocked by the sealing bump 1.403, meanwhile, the first spring 1.3514 is reset, the first spring 1.3514 drives the first sleeve rod 1.35120 to move upwards, the cavity 1.3510 on the cover plate 1.35 is also closed simultaneously, and the cam 1.202 rotates while interacting with the roller 1.2021 to drive the roller 1.2021 to rotate, further, the other roller 1.202 at the tail end of the lifting sleeve rotates, and further, the battery shell moves to the blanking assembly.
Carry out the process of evacuation to the vacuum box in with battery case through unloading subassembly, because electrolyte generally all adopts strong acid or strong alkaline electrolyte, strong acid electrolyte has certain hydroscopicity, can absorb the moisture in the air, make strong acid electrolyte diluted, and strong alkaline electrolyte can react with the carbon dioxide in the air, make strong alkaline electrolyte rotten, through adding the cover plate 1.35 on battery case before annotating the liquid, and then can completely cut off battery case's inside and air, can avoid electrolyte to be diluted or rotten.
During the process of vacuumizing, negative pressure is formed in the vacuum box, so that the sealing plug 1.3512 moves upwards under the action of the negative pressure, the elastic protrusion 1.351 has certain elasticity, so that the sealing plug 1.3512 moves the sealing plug 1.3512 above the elastic protrusion 1.351 under the action of the negative pressure, the inner wall of the battery shell is communicated with the vacuum box through the cavity 1.3510 in the cover plate 1.35, the first spring 1.3514 is in an extended original state in the process of moving the sealing plug 1.3512 upwards, the vacuum box stops working until the inside of the battery shell is also in a vacuum state, at the moment, the sealing plug 1.3512 is reset under the action of the first spring 1.3514, so that the cover plate 1.35 seals the battery shell before liquid injection, and the sealing plug 1.3512 interacts with the sealing bump 1.403 during liquid injection, and the liquid injection process is completed.
After the vacuumizing is completed, before the battery is packaged, the cover plate 1.35 can be detached through a manipulator or manually, the hard convex columns on the sealing plugs 1.3512 on the cover plate 1.35 need to be pressed simultaneously, so that the sealing plugs 1.3512 move downwards simultaneously, the cavity 1.3510 is opened, the cover plate 1.35 can be detached when the battery shell is the same as the external air pressure, and the battery shell is sealed and packaged after the cover plate 1.35 is detached.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. A liquid injection device for battery production comprises a frame (1), wherein a lifting mechanism (1.2) and a liquid injection mechanism are arranged on the frame (1), the lifting mechanism (1.2) and the liquid injection mechanism are correspondingly arranged, the liquid injection mechanism comprises a plurality of injection nozzles (1.40), and the liquid injection device is characterized in that,
the injection port of the injection nozzle (1.40) is provided with a sealing assembly in a vertical sliding manner, and the sealing assembly is provided with a sealing position for sealing the injection port and an injection position for being ejected out of the injection port;
also comprises a blanking mechanism which is arranged on the frame (1),
the blanking mechanism comprises a blanking frame (1.3) fixedly connected to the rack (1), a frame body (1.30) arranged below the blanking frame (1.3) and a driving assembly arranged between the frame body (1.30) and the blanking frame (1.3);
the driving assembly comprises a blanking assembly and an elastic resetting assembly (1.31), wherein the blanking assembly and the elastic resetting assembly are arranged between the frame body (1.30) and the blanking frame (1.3);
two conveying mechanisms (1.1); the two conveying mechanisms (1.1) are respectively positioned at two ends of the lifting mechanism (1.2), and the two conveying mechanisms (1.1) are respectively used for feeding and discharging the battery box body;
each conveying mechanism (1.1) comprises two conveying wheels (1.13), and a conveying belt (1.12) is sleeved on each conveying wheel (1.13);
the conveying mechanism (1.1) is provided with an intermittent transmission assembly, the intermittent transmission assembly comprises an active rotating part and a passive rotating part, and the active rotating part comprises an active rotating shaft (1.11), a connecting rod (1.110) and a driving shaft (1.111) which are sequentially connected;
the driven rotating part comprises a rotating disc (1.10) arranged on a driven shaft, four transmission grooves (1.100) are arranged on the rotating disc (1.10) in a circle center array shape, and the four transmission grooves (1.100) are radially arranged in the center;
the driving shaft (1.111) is clamped into the transmission groove (1.100) under the driving of the driving rotating shaft (1.11) to drive the rotating disc (1.10) to rotate for 90 degrees;
the driving rotating shaft (1.11) is driven by a motor (2), and the driven shaft drives the conveying wheel (1.13) to realize intermittent transmission;
the rotating disc is characterized in that four first arc-shaped notches matched with the driving rotating shaft (1.11) are arranged on the rotating disc (1.10) in an encircling mode, and the periphery of the driving rotating shaft (1.11) is attached to the first arc-shaped notches on the driving rotating shaft (1.11) to limit the rotating disc (1.10).
2. The electrolyte injection device for battery production according to claim 1, wherein a pressure applying assembly is further disposed in the injection nozzle (1.40), and the pressure applying assembly is configured to apply pressure to the sealing assembly during electrolyte injection.
3. The liquid injection device for battery production according to claim 2, wherein the pressing assembly comprises a sealing slider (1.402) slidably connected in the injection nozzle (1.40) and a second spring (1.401) connected between the injection nozzle (1.40) and the sealing slider (1.402).
4. The electrolyte injection device for battery production according to claim 1, wherein the lifting mechanism (1.2) comprises a lifting platform (1.20), and a roller (1.202) is rotatably connected to each end of the lifting platform (1.20).
5. The electrolyte injection device for battery production according to claim 1, wherein a lifting assembly is further installed on the machine frame (1), and the lifting assembly is used for controlling the lifting mechanism (1.2) to reciprocate in the vertical direction.
6. The liquid injection device for battery production according to claim 5, wherein the lifting assembly comprises a cam (1.202) and a roller (1.2021) cooperating with the cam (1.202), and the roller (1.2021) moves on a stroke track of the cam (1.202).
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| CN202110845816.4A CN113594642B (en) | 2021-07-26 | 2021-07-26 | Liquid injection device for battery production |
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| CN202110845816.4A CN113594642B (en) | 2021-07-26 | 2021-07-26 | Liquid injection device for battery production |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208608A (en) * | 2013-03-26 | 2013-07-17 | 东莞市德瑞精密设备有限公司 | Liquid-injecting mechanism and liquid-injecting machine |
| CN206532822U (en) * | 2017-03-08 | 2017-09-29 | 东莞丰源锂能电池设备有限公司 | A kind of linear cylindrical battery fluid injection sealing device |
| WO2021093128A1 (en) * | 2019-11-14 | 2021-05-20 | 深圳市普兰德储能技术有限公司 | Liquid injection device and liquid injection method |
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2021
- 2021-07-26 CN CN202110845816.4A patent/CN113594642B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208608A (en) * | 2013-03-26 | 2013-07-17 | 东莞市德瑞精密设备有限公司 | Liquid-injecting mechanism and liquid-injecting machine |
| CN206532822U (en) * | 2017-03-08 | 2017-09-29 | 东莞丰源锂能电池设备有限公司 | A kind of linear cylindrical battery fluid injection sealing device |
| WO2021093128A1 (en) * | 2019-11-14 | 2021-05-20 | 深圳市普兰德储能技术有限公司 | Liquid injection device and liquid injection method |
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