CN117219883A - Manufacturing and processing device and method for lithium battery cell - Google Patents
Manufacturing and processing device and method for lithium battery cell Download PDFInfo
- Publication number
- CN117219883A CN117219883A CN202311451323.8A CN202311451323A CN117219883A CN 117219883 A CN117219883 A CN 117219883A CN 202311451323 A CN202311451323 A CN 202311451323A CN 117219883 A CN117219883 A CN 117219883A
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- battery cell
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- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 11
- 238000007731 hot pressing Methods 0.000 claims abstract description 48
- 239000000428 dust Substances 0.000 claims description 55
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003672 processing method Methods 0.000 abstract description 8
- 238000003860 storage Methods 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to the technical field of lithium battery cell processing, and discloses a lithium battery cell manufacturing and processing device and a processing method thereof. The invention relates to a manufacturing and processing device and a processing method of a lithium battery cell, wherein a pressurizer is designed, a pressure column on the pressurizer is pulled to linearly move in an air cavity while a hot-pressing plate moves, and the space in the air cavity is reduced, so that air in the air cavity is slowly extruded into an air pressure pipe, and is injected into an air bag column through the air pressure pipe, so that the air bag column is thickened, stretches out of an internal groove and acts on the edge of a cell roll, and the air bag columns on two sides are extruded opposite to the edge of the cell roll, thereby solving the technical problem that the edge of the cell roll cannot be pressed due to inward retraction.
Description
Technical Field
The invention relates to the technical field of lithium battery cell processing, in particular to a lithium battery cell manufacturing and processing device and a lithium battery cell manufacturing and processing method.
Background
In the production process of the lithium ion battery, after the production of the pole pieces is finished, the positive pole piece, the negative pole piece and the diaphragm are assembled and manufactured in a winding or lamination mode to form a basic battery cell, and then the battery cell is subjected to hot-press shaping generally; the hot-press shaping process can improve the flatness of the lithium ion battery on one hand, so that the thickness of the battery core meets the requirement and has high consistency; on the other hand, the membrane folds can be eliminated, air in the battery core is removed, the membrane and the positive and negative pole pieces are closely adhered together, the lithium ion diffusion distance is shortened, and the internal resistance of the battery is reduced.
The existing lithium battery equipment for hot-press shaping has certain technical defects that firstly, a worker needs to manually place a battery cell on a hot-press module for placement, time and labor are wasted, and the placement position is easy to deviate, so that the hot-press effect is reduced; secondly, as the two edges of the battery cell extend inwards in a curve manner when the battery cell is hot-pressed, the hot-pressing die cannot be pressed to the edge position, so that the whole hot-pressing quality of the battery cell is reduced; thirdly, because the compactness of the lamination that the electric core formed when the coiling is not enough, lead to the inside many gaps that exist of electric core, this gap is easy to advance dirt at electric core processing and the in-process that shifts, and through hot pressing again after advancing dirt, the gap disappears, and the dust then can stay in the electric core to the quality of battery has been reduced.
In summary, considering that the existing facilities cannot meet the working and use requirements, we propose a manufacturing and processing device and a processing method for lithium battery cells.
Disclosure of Invention
The invention mainly aims to provide a manufacturing and processing device and a processing method for a lithium battery cell, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a lithium battery cell manufacturing device, includes the mount pad, the fixed annular shell that is provided with in intermediate position on the mount pad, be provided with the feeding conveyer on the mount pad and be located annular shell upper left side, the electricity core has been placed on the belt of feeding conveyer and has been rolled up, two sets of tabs are installed to the tip symmetry of electricity core book.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: and a feeding hole is formed in the annular shell at the position where the annular shell is in butt joint with the feeding conveyor, and the feeding hole is used for independently passing through the power core roll.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the lower extreme intercommunication of annular shell is provided with the discharging pipe, the fixed hot pressing die holder that is provided with in below that is located the discharging pipe on the mount pad, the up end intermediate position department of hot pressing die holder has seted up the spacing hole that the power supply roll passed.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: and a hot pressing mechanism is arranged at the lower end of the hot pressing die holder.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the inside laminating of annular shell is provided with the charging wheel, the middle part spline of charging wheel installs the shaft, the first bearing frame has all been cup jointed to the position that both ends and annular shell of shaft contacted, the gear wheel has been cup jointed to the one end that the shaft stretched into the mount pad, one side meshing of gear wheel is provided with the pinion, the pinion is installed on servo motor's output shaft.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: eight groups of clamping grooves are uniformly formed in the wheel surface of the charging wheel, the clamping grooves are used for feeding power to the core coil, the clamping grooves are matched with each other in size, lug grooves for two groups of lugs to be inserted are symmetrically formed in the bottom of the clamping grooves, the number of the lug grooves is 2, and chamfering openings are formed in the clamping grooves.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the hot pressing mechanism comprises a positioning seat, a control cylinder, a cylinder rod and a driving block, wherein the upper end of the positioning seat is fixed with the bottom of the hot pressing die holder, the control cylinder is vertically arranged at the middle position of the lower end face of the positioning seat, the cylinder rod is arranged in the positioning seat by extending upwards from the control cylinder, and the upper end of the cylinder rod is welded with the driving block.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the hot pressing mechanism further comprises a slide bar, a movable seat, a sliding groove, a storage groove, first springs and a hot pressing plate, wherein the slide bar is symmetrically arranged on two oblique sides of the driving block, the storage groove is symmetrically arranged on two inner sides of the positioning seat, the movable seat is limited in the storage groove, the movable seat is connected with the storage groove through a plurality of groups of first springs, the number of the first springs is preferably 4, the sliding groove is arranged on one side of the movable seat, the sliding groove is matched with the slide bar, and the two groups of hot pressing plates are welded on the upper end faces of the movable seat, are positioned in the hot pressing seat and act on the battery cell coil together.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the two groups of hot pressing plates are respectively provided with a pressurizer, each pressurizer comprises an outer cylinder body, a sealing port, a pressure column and an air cavity, one end of each outer cylinder body is fixed with the inner wall of the hot pressing die holder, the other end of each outer cylinder body is provided with the sealing port, the sealing port is used for the pressure column to penetrate through, the pressure column enters the air cavity in the outer cylinder body, and one end of the pressure column, far away from the air cavity, is fixed with the outer side face of the hot pressing plate.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the pressurizer further comprises a piston, a second spring and air pressure pipes, wherein the piston is arranged on the pressure column and is positioned in the air cavity, the piston is fixedly connected with the bottom of the air cavity through the second spring, and two groups of air pressure pipes are symmetrically communicated outside the air cavity.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the hot-press die holder is characterized in that inner grooves are symmetrically formed in two edges of the inner side surface of the hot-press die holder, air bag columns are glued in the inner grooves, the total number of the air bag columns is 4, the air bag columns act on the edges of the electric core coil, and the air pressure tube extends outwards and is communicated with the middle part of the air bag columns.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the dust collection device is characterized in that a fixing seat is fixedly arranged at the top of the annular shell, a dust collection box is arranged on the fixing seat, a dust collection motor is arranged at the top of the dust collection box, a dust collection main pipe is arranged at the bottom of the dust collection box, a plurality of groups of branch pipes penetrate through the fixing seat downwards and are connected with the branch pipes through porous joints, the number of the branch pipes is preferably 3-5, the plurality of groups of branch pipes act on the upper side of the clamping groove, a plurality of groups of vent holes are uniformly formed in the bottom of the clamping groove, an ash removal fan is arranged at the lower end of the clamping groove, and the ash removal fan is totally 8 groups.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the control cylinder is fixed on the mounting seat through the connecting frame.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: the air pressure tube comprises a corrugated expansion part.
As a preferable scheme of the lithium battery cell manufacturing and processing device, the invention comprises the following steps: and the ash removing fans are arranged in the charging wheel.
The manufacturing and processing method of the lithium battery cell comprises the following method steps:
s1, automatic charging: the coiled battery cell coil is transversely placed on a belt of a feeding conveyor, and moves towards a feeding port along with the feeding conveyor, a group of clamping grooves on a charging wheel are just positioned at the inner side of the feeding port, the battery cell coil enters the group of clamping grooves from the feeding port, and two groups of pole lugs just slide downwards to enter lug grooves, so that charging is completed.
S2, transporting and deashing: starting a servo motor, driving a charging wheel to intermittently rotate through meshing and decelerating of a pinion and a large gear, enabling a clamping groove carrying a battery cell roll to immediately move to the top station position of the charging wheel, then starting an ash removing fan below the clamping groove, enabling air continuously blown out from a vent hole to enter the battery cell roll, and accordingly enabling dust in a gap inside the battery cell roll to be taken away and overflowed from the upper end position of the battery cell roll.
S3, sucking and collecting: after the clamping groove is filled, the dust collection motor is started again, and a plurality of groups of branch pipes are covered above the battery cell coil, so that overflowed dust is fully absorbed, and is injected into the dust filtration box through the dust collection main pipe for collection.
S4, blanking and positioning: the clamping groove with the battery cell coil moves to the bottom of the charging wheel, the battery cell coil falls down due to gravity and falls from the discharging pipe, and the battery cell coil passes through the limiting hole and enters the middle position inside the hot pressing die holder.
S5, bidirectional hot pressing: starting a control cylinder, slowly shrinking a cylinder rod to cause a driving block to descend, and slowly pulling two groups of moving seats to be close to each other by the driving block, so that the two groups of hot pressing plates are slowly close to the front and back sides of the battery cell coil, and heating and extruding the battery cell coil.
S6, edge pressing: when the hot pressing plate moves, the pressure column on the traction pressurizer moves linearly in the air cavity, the space in the air cavity is reduced, air in the air cavity is extruded into the air pressure tube slowly, the air is injected into the air bag column through the air pressure tube, the air bag column is caused to become straight and thick, extends out of the internal connecting groove and acts on the edge of the battery cell coil, and the air bag columns on two sides extrude the edge of the battery cell coil oppositely.
Compared with the prior art, the invention provides a lithium battery cell manufacturing and processing device and a lithium battery cell manufacturing and processing method, which have the following remarkable improvements and advantages:
the design charging wheel, the electricity core moves to the feed inlet direction along with the feeding conveyer, a set of clamping groove on the charging wheel just is located the inboard position of feed inlet this moment, the electricity core is rolled up and is entered into this group of clamping groove from the feed inlet, two sets of utmost point ear just in time the gliding ear inslot that enters into, accomplish automatic loading, at this moment start servo motor, drive charging wheel intermittent type nature rotation through pinion, gear engagement speed reduction, the bottom of charging wheel is moved to the clamping groove that carries the electricity core and is reached intermittent type material transporting purpose, then the electricity core rolls up downwards because gravity drops, fall from the discharging pipe, pass spacing hole and enter into the inside intermediate position of hot pressing die holder, two sets of utmost point ears on the electricity core roll just are located spacing hole position and are blocked this moment, ensure that the electricity core is rolled up and can not fall down, thereby accomplish the automatic accurate location to the electricity core, labour saving and time saving.
The design pressurizer, when the hot pressboard moves, pull the pressure post rectilinear motion in the air cavity on the pressurizer, reduce the space in the air cavity, thereby with the air in the air cavity slowly extrude into the pneumatic tube in, pour into the gasbag post through the pneumatic tube, cause the gasbag post to become straight and thicken, stretch out the inscription groove outside, and act on the border department of electric core book, the gasbag post of both sides extrudees the border of electric core book in opposite directions, thereby solve the border of electric core book because inwards receive the technical problem that can't receive the suppression.
When the surface air bag utilizes the extensibility, the surface air bag can fully contact with the edge of the battery cell coil, adapt to the curved edge, play a role in buffering, avoid overlarge pressing force, and on the other hand, the air bag columns on two sides squeeze the edge of the battery cell coil oppositely, so that the battery cell coil is positioned and limited more stably, and the phenomenon of stress deviation of the battery cell coil during hot pressing is avoided.
The dust removing fan below the clamping groove is started, air continuously blown out from the vent hole enters the battery core roll, so that dust in a gap inside the battery core roll is taken away, the dust overflows from the upper end position of the battery core roll, at the moment, the dust collecting motor is started again, a plurality of groups of branch pipes cover the upper part of the battery core roll, and therefore overflowed dust is fully absorbed, and is injected into the dust filtering box through the dust collecting main pipe to be collected, and the aim of cleaning dust in advance is achieved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a manufacturing and processing device and a processing method of a lithium battery cell according to the present invention;
FIG. 2 is a schematic view of the driving structure of the charging wheel of the present invention;
FIG. 3 is a schematic view showing the external structure of the charging wheel of the present invention;
FIG. 4 is a schematic view showing the external structure of the hot press mechanism of the present invention;
FIG. 5 is a schematic view showing the internal structure of the hot press mechanism of the present invention;
FIG. 6 is a graph of hot-pressed relative positions of the cell rolls of the present invention;
FIG. 7 is a schematic view of the external structure of the hot platen of the present invention;
FIG. 8 is a schematic view of the internal structure of the pressurizer of the present invention;
FIG. 9 is a schematic view of the installation position of the dust suction motor of the present invention;
FIG. 10 is a schematic view of the external connection of the main suction pipe of the present invention;
fig. 11 is a schematic view of the bottom structure of the trough of the present invention.
In the figure: 1. a mounting base; 2. an annular housing; 3. a feed conveyor; 4. a battery cell roll; 5. a tab; 6. a feed inlet; 8. a hot pressing mechanism; 80. a positioning seat; 81. a control cylinder; 82. a cylinder rod; 83. a driving block; 84. a slide bar; 85. a movable seat; 86. a chute; 87. a storage groove; 88. a first spring; 89. a hot pressing plate; 9. a pressurizer; 91. an outer cylinder; 92. sealing the mouth; 93. a pressure column; 94. an air cavity; 95. a piston; 96. a second spring; 97. an air pressure pipe; 10. a charging wheel; 11. a wheel axle; 12. a first bearing seat; 13. a large gear; 14. a pinion gear; 15. a servo motor; 16. a clamping groove; 17. chamfering the opening; 18. ear grooves; 20. a discharge pipe; 21. hot pressing the die holder; 22. a limiting hole; 30. an inscription groove; 31. an airbag column; 40. a fixing seat; 41. a dust filtering box; 42. a dust collection motor; 43. a dust collection main pipe; 44. a branch pipe; 45. a vent hole; 50. a connecting frame; 51. a corrugated expansion part.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-8, this embodiment provides a lithium battery cell manufacturing device, including mount pad 1, the fixed annular shell 2 that is provided with in intermediate position on the mount pad 1 plays the fixed effect of connection, is provided with feeding conveyer 3 on the mount pad 1 and be located annular shell 2 upper left side, and feeding conveyer 3's internally mounted has the belt.
Specifically, place electric core on the belt of feeding conveyer 3 and roll up 4, two sets of tabs 5 are installed to electric core's 4 tip symmetry, and feed inlet 6 has been seted up to the position of docking with feeding conveyer 3 on the annular shell 2, and feed inlet 6 passes alone to electric core is rolled up 4, and feed inlet 6 slope is seted up, and electric core 4 of being convenient for is rolled up down to slide, as shown in fig. 1.
Further, the inside of the annular housing 2 is fitted with a charging wheel 10.
The wheel shaft 11 is installed on the middle spline of the charging wheel 10, the charging wheel 10 moves along with the wheel shaft 11 in a circular mode, the first bearing seats 12 are sleeved at the contact positions of the two ends of the wheel shaft 11 and the annular shell 2, the connection and fixation effects are achieved, the large gear 13 is sleeved at one end of the wheel shaft 11 extending into the installation seat 1, the small gear 14 is arranged on one side of the large gear 13 in a meshed mode, the small gear 14 is installed on an output shaft of the servo motor 15, and the servo motor 15 works intermittently, as shown in fig. 2.
Eight groups of clamping grooves 16 are uniformly formed in the wheel surface of the charging wheel 10, the clamping grooves 16 are used for allowing the power core coil 4 to enter, the clamping grooves are matched with each other in size, lug grooves 18 for allowing two groups of lugs 5 to be inserted are symmetrically formed in the bottom of the clamping grooves 16, chamfering openings 17 are formed in the clamping grooves 16, and the power core coil 4 can conveniently enter the clamping grooves 16 smoothly, as shown in fig. 3.
Further, the lower end of the annular shell 2 is provided with a discharging pipe 20 in a communicating manner, a hot-press die holder 21 is fixedly arranged on the mounting seat 1 and below the discharging pipe 20, a limiting hole 22 for the power core coil 4 to pass through is formed in the middle of the upper end face of the hot-press die holder 21, and the discharging pipe 20 corresponds to the limiting hole 22, as shown in fig. 1.
Further, a hot press mechanism 8 is mounted at the lower end of the hot press die holder 21, as shown in fig. 1.
Specifically, the thermo-compression mechanism 8 includes a positioning seat 80, a control cylinder 81, a cylinder rod 82, and a driving block 83, as shown in fig. 4 and 5.
In this embodiment, the upper end of the positioning seat 80 is fixed with the bottom of the hot press mold seat 21, a control cylinder 81 is vertically installed in the middle position of the lower end surface of the positioning seat 80, a cylinder rod 82 is arranged in the positioning seat 80 by extending the inside of the control cylinder 81 upwards, the upper end of the cylinder rod 82 is welded with a driving block 83, and the section of the driving block 83 is trapezoid.
Wherein the control cylinder 81 is fixed to the mount 1 through the connection frame 50.
Specifically, the thermo-compression mechanism 8 further includes a slide bar 84, a movable seat 85, a slide groove 86, a receiving groove 87, a first spring 88, and a thermo-compression plate 89, as shown in fig. 4 and 5.
In this embodiment, the sliding strips 84 are symmetrically installed on two oblique sides of the driving block 83, the storage slots 87 are symmetrically formed on two inner sides of the positioning seat 80, the movable seat 85 is disposed in the storage slots 87 in a limited manner, and the movable seat 85 is connected with the storage slots 87 by a plurality of groups of first springs 88.
In this embodiment, a sliding groove 86 is formed on one side of the moving seat 85, the sliding groove 86 is engaged with the sliding bar 84, and is engaged in a cross shape, and is not capable of falling off, and the sliding groove 86 and the sliding bar move relatively, the upper end faces of the two groups of moving seats 85 are both welded with a hot pressing plate 89, a motor heater is mounted in the hot pressing plate 89, and the two groups of hot pressing plates 89 are both located in the hot pressing seat 21 and act on the battery cell coil 4 together.
Further, the pressers 9 are provided on the outer sides of both sets of hot pressers 89, as shown in fig. 6 and 7.
Specifically, the pressurizer 9 includes an outer cylinder 91, a seal port 92, a pressure column 93, and an air chamber 94, as shown in fig. 8.
In this embodiment, one end of the outer cylinder 91 is fixed to the inner wall of the hot press die holder 21, the other end of the outer cylinder 91 is provided with a sealing port 92, the inner sealing ring plays a role in sealing, the sealing port 92 is provided for the pressure column 93 to pass through, the pressure column 93 enters into the air cavity 94 inside the outer cylinder 91, and moves linearly in the air cavity 94, and one end of the pressure column 93 away from the air cavity 94 is fixed to the outer side surface of the hot press plate 89.
Further, the pressurizer 9 further includes a piston 95, a second spring 96, and a pneumatic tube 97, as shown in fig. 7 and 8.
In this embodiment, the pressure column 93 is provided with the piston 95, the piston 95 is located in the air cavity 94, the piston 95 and the bottom of the air cavity 94 are connected and fixed by the second spring 96, the second spring 96 plays a role in resetting, two groups of air pressure pipes 97 are symmetrically communicated outside the air cavity 94, the air pressure pipes 97 comprise the corrugated expansion and contraction parts 51, and the corrugated expansion and contraction parts 51 can be stretched or contracted and move along with the pressurizer 9.
Further, the two edges of the inner side surface of the hot-press die holder 21 are symmetrically provided with inner grooves 30, the inner grooves 30 are internally glued with air bag columns 31 for fixing and accommodating, the air bag columns 31 act on the edges of the battery cell coil 4, and the air pressure tube 97 extends outwards and is communicated with the middle part of the air bag columns 31, as shown in fig. 7.
When the embodiment is used, firstly, the coiled electric core roll 4 is transversely placed on a belt of the feeding conveyor 3 (one end of the electric core roll 4 with the lug 5 is positioned inwards), along with the feeding conveyor 3 moving towards the feeding port 6, a group of clamping grooves 16 on the feeding wheel 10 are positioned at the inner side of the feeding port 6, the electric core roll 4 enters the group of clamping grooves 16 from the feeding port 6, two groups of lugs 5 slide downwards into the lug grooves 18 to finish the feeding, at the moment, the servo motor 15 is started, the feeding wheel 10 is driven to intermittently rotate by meshing and decelerating the pinion 14 and the large gear 13, the clamping grooves 16 with the electric core roll 4 move to the bottom of the feeding wheel 10, then the electric core roll 4 falls downwards due to gravity and passes through the limiting holes 22 to enter the middle position inside the hot-press die holder 21 (at the moment, the two groups of lugs 5 on the electric core roll 4 are positioned at the limiting holes 22 to be clamped), ensuring that the battery coil 4 does not fall down), then starting the control cylinder 81, slowly shrinking the cylinder rod 82 to cause the driving block 83 to descend, and slowly pulling the two groups of moving seats 85 to be close by the driving block 83 (the sliding groove 86 and the sliding bar 84 perform relative movement), so that the two groups of hot pressing plates 89 are slowly close to the front and back sides of the battery coil 4, thereby heating and extruding the battery coil 4, improving the flatness of the battery coil 4, reducing the internal resistance of the battery, pulling the pressure column 93 on the pressurizer 9 to linearly move in the air cavity 94 while the hot pressing plates 89 move, reducing the space in the air cavity 94, slowly extruding the air in the air cavity 94 into the air pressure tube 97, injecting the air into the air bag column 31 through the air pressure tube 97 to cause the air bag column 31 to become straight and thick, extending out of the internal connecting groove 30 and acting at the edge of the battery coil 4, the airbag columns 31 on the two sides squeeze the edges of the battery cell coil 4 in opposite directions, so that the technical problem that the edges of the battery cell coil 4 cannot be pressed due to inward retraction is solved.
In the second embodiment, on the basis of the first embodiment, since the compactness of the lamination formed by the battery coil 4 during winding is insufficient, a plurality of gaps exist inside the battery coil 4, dust is easy to enter the gaps in the processing and transferring processes of the battery coil 4, the dust is heated and pressed after entering the gaps, and the gaps disappear, so that the dust can remain in the battery coil 4, and the quality of the battery is reduced.
Specifically, a fixing seat 40 is fixedly arranged at the top of the annular housing 2, and is used for connection and fixation, a dust filtering box 41 is arranged on the fixing seat 40, and a dust collecting motor 42 is arranged at the top of the dust filtering box 41, as shown in fig. 9 and 10.
Wherein, the bottom of the dust filtering box 41 is provided with a main dust collection pipe 43, the main dust collection pipe 43 passes through the fixing seat 40 downwards and is connected with a plurality of groups of branch pipes 44 through porous joints, the dust collection area is increased, and the plurality of groups of branch pipes 44 act on the upper part of the clamping groove 16 to collect dust towards the upper end direction of the battery cell coil 4, as shown in fig. 10.
Further, a plurality of groups of ventilation holes 45 are uniformly formed in the bottom of the clamping groove 16, air is conveniently supplied, the ash removal fans are mounted at the lower end of the clamping groove 16, and the plurality of groups of ash removal fans are mounted in the charging wheel 10, as shown in fig. 11.
When the embodiment is used, after the material clamping groove 16 is filled, the material clamping groove moves to the top station position of the material clamping wheel 10, then the ash removing fan below the material clamping groove 16 is started, the air continuously blown out from the air holes 45 enters the battery cell coil 4, so that dust in an internal gap of the battery cell coil 4 is taken away, overflows from the upper end position of the battery cell coil 4, at the moment, the dust collecting motor 42 is restarted, a plurality of groups of branch pipes 44 are covered above the battery cell coil 4, so that the overflowed dust is fully absorbed, and the dust is injected into the dust filtering box 41 through the dust collecting main pipe 43, and the dust is collected, so that the purpose of ash removing is achieved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a lithium cell electricity core manufacturing device, includes mount pad (1), its characterized in that: the novel solar cell is characterized in that an annular housing (2) is fixedly arranged in the middle of the mounting seat (1), a feeding conveyor (3) is arranged on the mounting seat (1) and positioned at the upper left side of the annular housing (2), a battery cell roll (4) is placed on a belt of the feeding conveyor (3), two groups of lugs (5) are symmetrically arranged at the end part of the battery cell roll (4), a feeding port (6) is formed in the position, in butt joint with the feeding conveyor (3), of the annular housing (2), and the feeding port (6) is used for independently penetrating through the battery cell roll (4);
the lower extreme intercommunication of annular shell (2) is provided with discharging pipe (20), fixed hot-pressing die holder (21) that are provided with in the below of discharging pipe (20) on mount pad (1), limit hole (22) that power supply core roll (4) passed are offered to the up end intermediate position department of hot-pressing die holder (21), hot-pressing mechanism (8) are installed to the lower extreme of hot-pressing die holder (21).
2. The lithium battery cell manufacturing and processing device according to claim 1, wherein: the inside laminating of annular shell (2) is provided with charging wheel (10), shaft (11) are installed to the middle part spline of charging wheel (10), first bearing frame (12) have all been cup jointed in the position of the both ends of shaft (11) and annular shell (2) contact, gear wheel (13) have been cup jointed to the one end that shaft (11) stretched into mount pad (1), one side meshing of gear wheel (13) is provided with pinion (14), pinion (14) are installed on the output shaft of servo motor (15).
3. The lithium battery cell manufacturing and processing device according to claim 2, wherein: eight groups of clamping grooves (16) are uniformly formed in the wheel surface of the charging wheel (10), the clamping grooves (16) are used for allowing power supply core coils (4) to enter, the clamping grooves are matched with each other in size, lug grooves (18) for inserting two groups of lugs (5) are symmetrically formed in the bottom of the clamping grooves (16), and chamfering openings (17) are formed in the clamping grooves (16).
4. The lithium battery cell manufacturing and processing device according to claim 3, wherein: the hot pressing mechanism (8) comprises a positioning seat (80), a control cylinder (81), a cylinder rod (82) and a driving block (83), wherein the upper end of the positioning seat (80) is fixed with the bottom of a hot pressing die holder (21), the control cylinder (81) is vertically arranged at the middle position of the lower end face of the positioning seat (80), the cylinder rod (82) is arranged in the positioning seat (80) in an upward extending mode, and the upper end of the cylinder rod (82) is welded with the driving block (83).
5. The lithium battery cell manufacturing and processing device according to claim 4, wherein: the hot pressing mechanism (8) further comprises a sliding strip (84), a moving seat (85), a sliding groove (86), a containing groove (87), a first spring (88) and a hot pressing plate (89), wherein the sliding strip (84) is symmetrically arranged on two inclined sides of the driving block (83), the containing groove (87) is symmetrically arranged on two inner sides of the positioning seat (80), the containing groove (87) is internally limited and provided with the moving seat (85), the moving seat (85) is connected with the containing groove (87) through a plurality of groups of first springs (88), the sliding groove (86) is formed in one side of the moving seat (85), the sliding groove (86) and the sliding strip (84) are matched with each other to perform relative movement, the hot pressing plates (89) are welded on the upper end faces of the two groups of the moving seat (85), and the two groups of the hot pressing plates (89) are located in the hot pressing seat (21) to jointly act on the battery cell coil (4).
6. The lithium battery cell manufacturing and processing device according to claim 5, wherein: two sets of all be provided with presser (9) on the lateral surface of hot pressboard (89), presser (9) are including outer barrel (91), sealing mouth (92), pressure post (93) and air cavity (94), one end of outer barrel (91) is fixed with the inner wall of hot pressing die holder (21), sealing mouth (92) have been seted up to the other end of outer barrel (91), sealing mouth (92) supply pressure post (93) to pass, pressure post (93) enter into in air cavity (94) of outer barrel (91) inside, one end that air cavity (94) were kept away from to pressure post (93) is fixed with the lateral surface of hot pressboard (89).
7. The lithium battery cell manufacturing and processing device according to claim 6, wherein: the pressurizer (9) further comprises a piston (95), a second spring (96) and an air pressure pipe (97), wherein the piston (95) is arranged on the pressure column (93), the piston (95) is located in the air cavity (94), the piston (95) and the bottom of the air cavity (94) are fixedly connected through the second spring (96), and the air cavity (94) is externally symmetrically communicated with two groups of air pressure pipes (97).
8. The lithium battery cell manufacturing and processing device according to claim 7, wherein: an inner connecting groove (30) is symmetrically formed in two edges of the inner side surface of the hot-pressing die holder (21), an air bag column (31) is glued in the inner connecting groove (30), the air bag column (31) acts on the edge of the battery cell coil (4), and the air pressure tube (97) extends outwards and is communicated with the middle part of the air bag column (31).
9. The lithium battery cell manufacturing and processing device according to claim 3, wherein: the dust collection device is characterized in that a fixing seat (40) is fixedly arranged at the top of the annular shell (2), a dust collection box (41) is arranged on the fixing seat (40), a dust collection motor (42) is arranged at the top of the dust collection box (41), a dust collection main pipe (43) is arranged at the bottom of the dust collection box (41), the dust collection main pipe (43) downwards penetrates through the fixing seat (40) and is connected with a plurality of groups of branch pipes (44) through porous joints, the plurality of groups of branch pipes (44) act on the upper side of the clamping groove (16), a plurality of groups of vent holes (45) are uniformly formed in the bottom of the clamping groove (16), and a dust removal fan is arranged at the lower end of the clamping groove (16).
10. A method for manufacturing and processing a lithium battery cell, applied to the manufacturing and processing device of the lithium battery cell according to any one of claims 1-9, characterized by comprising the following method steps:
s1, automatic charging: firstly, transversely placing a coiled electric core coil (4) on a belt of a feeding conveyor (3), and enabling two groups of lugs (5) to slide downwards into lug grooves (18) along with the movement of the feeding conveyor (3) towards a feeding port (6), wherein a group of clamping grooves (16) on a charging wheel (10) are positioned at the inner side of the feeding port (6) at the moment, the electric core coil (4) enters the group of clamping grooves (16) from the feeding port (6), and charging is completed;
s2, transporting and deashing: starting a servo motor (15), driving a charging wheel (10) to intermittently rotate through meshing and decelerating of a pinion (14) and a large gear (13), enabling a clamping groove (16) carrying a battery cell roll (4) to move to the top station position of the charging wheel (10) immediately, then starting an ash removal fan below the clamping groove (16), enabling air continuously blown out from a vent hole (45) to enter the battery cell roll (4), and accordingly carrying dust in an inner gap of the battery cell roll (4) and overflowing from the upper end position of the battery cell roll (4);
s3, sucking and collecting: after the material clamping groove (16) is filled, the dust collection motor (42) is started again, and a plurality of groups of branch pipes (44) are covered above the battery cell coil (4), so that overflowed dust is fully absorbed, and is injected into the dust filtering box (41) through the dust collection main pipe (43) for collection;
s4, blanking and positioning: the clamping groove (16) carrying the battery cell coil (4) moves to the bottom of the charging wheel (10), the battery cell coil (4) falls down due to gravity, falls from the discharging pipe (20) and passes through the limiting hole (22) to enter the middle position inside the hot press die holder (21);
s5, bidirectional hot pressing: starting a control cylinder (81), slowly shrinking a cylinder rod (82) to cause a driving block (83) to descend, and slowly pulling two groups of moving seats (85) to be close by the driving block (83), so that two groups of hot pressing plates (89) are slowly close to the front side and the back side of the battery cell coil (4), and heating and extruding the battery cell coil (4);
s6, edge pressing: when the hot pressing plate (89) moves, the pressure column (93) on the traction pressurizer (9) moves linearly in the air cavity (94), the space in the air cavity (94) is reduced, air in the air cavity (94) is slowly extruded into the air pressure pipe (97), the air is injected into the air bag column (31) through the air pressure pipe (97), the air bag column (31) is caused to become straight and thick, extends out of the internal connecting groove (30) and acts on the edge of the battery cell roll (4), and the air bag columns (31) on two sides are extruded towards the edge of the battery cell roll (4).
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| CN202311451323.8A CN117219883B (en) | 2023-11-03 | 2023-11-03 | Manufacturing and processing device and method for lithium battery cell |
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| CN202311451323.8A CN117219883B (en) | 2023-11-03 | 2023-11-03 | Manufacturing and processing device and method for lithium battery cell |
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| CN117219883B (en) | 2024-01-23 |
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