CN115672695B - Lithium battery coating machine threading assembly - Google Patents
Lithium battery coating machine threading assembly Download PDFInfo
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- CN115672695B CN115672695B CN202211721040.6A CN202211721040A CN115672695B CN 115672695 B CN115672695 B CN 115672695B CN 202211721040 A CN202211721040 A CN 202211721040A CN 115672695 B CN115672695 B CN 115672695B
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000576 coating method Methods 0.000 title claims abstract description 14
- 239000011248 coating agent Substances 0.000 title claims abstract description 13
- 239000011888 foil Substances 0.000 claims abstract description 137
- 238000001035 drying Methods 0.000 claims abstract description 22
- 230000005389 magnetism Effects 0.000 claims description 11
- 238000007602 hot air drying Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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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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- Drying Of Solid Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of lithium battery coating, in particular to a tape threading assembly of a lithium battery coating machine, which comprises an oven, wherein a controller is arranged on one side of the outer wall of the oven, a top cover is arranged at the top of the oven, a drying opening is formed in the middle of the top cover, a hot air dryer is connected to the inside of the drying opening in a sliding manner, and a plurality of groups of nozzles are uniformly arranged at the bottom of the hot air dryer in an array manner; a feed inlet is formed in one side of the oven, and a bottom magnetic block is arranged in the middle of the bottom of an inner cavity of the oven; the automatic foil threading device is high in stability and adaptability, meets the requirement of limiting the height of foil, can limit, fix and clamp two side walls of the foil, is good in positioning effect, can adaptively adjust the opening number of the nozzles according to the width of the foil, is energy-saving, emission-reducing, stable and efficient, and particularly can adaptively clamp and fix the foil when the foil is broken, and can complete threading of the foil again without stopping the machine, so that the automatic foil threading device is simple in operation, energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the technical field of lithium battery coating, in particular to a tape threading assembly of a lithium battery coating machine.
Background
Lithium batteries are batteries which use lithium metal or lithium alloy as positive/negative electrode materials and use non-aqueous electrolyte solution, and have very high requirements on the environment due to the very active chemical characteristics of lithium metal, so that the lithium batteries have become the mainstream along with the development of scientific technology, and can be roughly divided into two types: lithium metal batteries and lithium ion batteries; lithium ion batteries do not contain lithium in the metallic state and are rechargeable; the fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and the safety, specific capacity, self-discharge rate and cost performance of rechargeable batteries were all superior to those of lithium ion batteries.
Chinese patent No. CN109482723A discloses a tape threading device of a lithium battery coating machine, which includes a traction bar group, a traction rail, a mounting seat, and an auxiliary bar, where the traction rail is provided with two groups and located on the left and right sides of the traction bar group, respectively, the traction rail is used to limit the traction bar group to move along the rail, the mounting seat is fixedly arranged at both ends of the traction rail and used to fix the traction rail, and the auxiliary bar is arranged outside the traction bar group and used to push the traction bar group to move.
In lithium cell production, the coating process is as a crucial joint, in production, takes place the disconnected area problem in the oven often, takes place disconnected back, production operating personnel generally shut down with the hand and pull and wear the area, and higher temperature makes operating personnel can't wear the area fast in the oven, very big influence production efficiency, and wear to take and can't guarantee to wear to take the quality in the oven, can wear to take to accomplish the back and need start the heating again after stopping moreover to cause a large amount of energy losses.
Simultaneously, add the man-hour to the foil and lack the detection calibration stop device to foil width and height to lead to the foil to appear too much heat loss when carrying out wind-force stoving, and then cause the loss of the energy, and the foil position changes easily when carrying out the transmission, and then reduces the machining precision to the foil.
And when the foil took place to take off, current device lacked the spacing clamping device to the foil, and then made the foil directly follow the oven roll-off, the follow-up degree of difficulty of wearing the area of very big increase, and the foil of roll-off causes the threat to near staff's safety easily to very easily take place great incident.
Disclosure of Invention
The invention aims to provide a tape threading assembly of a lithium battery coating machine, which solves the technical problem.
In order to achieve the purpose, the invention provides the following technical scheme: a tape threading assembly of a lithium battery coating machine comprises an oven, wherein a controller is arranged on one side of the outer wall of the oven, a top cover is arranged at the top of the oven, a drying opening is formed in the middle of the top cover, a hot air dryer is connected to the inside of the drying opening in a sliding mode, and a plurality of groups of nozzles are uniformly arranged at the bottom of the hot air dryer in an array mode;
a feed port is formed in one side of the oven, a bottom magnetic block is arranged in the middle of the bottom of an inner cavity of the oven, the bottom magnetic block has a Curie temperature point, a supporting plate is connected to one end, close to the feed port, inside the oven in a sliding mode, a limiting assembly is arranged at the top of the supporting plate, one end, far away from the feed port, inside the oven in the sliding mode is connected with a traction plate in a sliding mode, and a traction assembly is arranged at the top of the traction plate;
the spacing subassembly includes the electromagnetism roof, the bottom symmetry of electromagnetism roof is equipped with two sets of kerfs, the interior top of kerve is equipped with connecting spring, connecting spring's other end bottom is equipped with the riser, the other end bottom of riser with the top fixed connection of backup pad, the riser is equipped with the thermal expansion bellows in the face of the bottom of terminal surface, the other end of thermal expansion bellows is equipped with elastic splint, elastic splint's the other end all is equipped with distance sensor.
Preferably, both sides of the bottom of the inner cavity of the oven are provided with slide rails, the bottom of each of the traction plate and the support plate is provided with four support shafts, the bottom of each support shaft is provided with a mounting groove, the inner side of each mounting groove is rotatably connected with a movable pulley, and the movable pulleys are located on the inner sides of the slide rails and are in sliding connection with the slide rails.
Preferably, the traction assembly comprises two groups of connecting hinge pieces, the connecting hinge pieces are fixedly connected to one side of the top of the traction plate, the top of each connecting hinge piece is rotatably connected with a telescopic pressing rod, two telescopic pressing rods are hinged to the end faces of the two opposite telescopic pressing rods, and a threaded hole is formed in the connecting plate.
Preferably, the internal thread of screw hole is connected with the threaded rod, the top of threaded rod extends to the top of connecting plate and is equipped with the deep bead, the top of traction plate is equipped with driving motor, driving motor's top output with the bottom fixed connection of threaded rod.
Preferably, the top of the oven is provided with a slide way on both sides of the drying opening, the inside of the slide way is connected with the two sides of the hot air dryer in a sliding manner, the top of the hot air dryer is communicated with a hot air pipe, and the other end of the hot air pipe is communicated with an air feeder.
Preferably, the controller electrically controls each electrical element, a discharge port is formed in the side wall, away from the feed port, of the oven, the discharge port is matched with the feed port, a plurality of groups of air outlets are uniformly arranged on the two side walls of the oven in an array mode, and the outer end portion of each air outlet is communicated with a circulating pipeline.
Preferably, the bottom of the telescopic pressure lever is provided with a pressure sensor, the bottom of the telescopic pressure lever is provided with an anti-skid rubber mat, and the bottom of the anti-skid rubber mat is provided with a friction surface.
Preferably, the thermal expansion corrugated pipe is internally provided with thermal expansion gas, the end faces of the two groups of vertical plates, which face each other, are both provided with a return spring inside the thermal expansion corrugated pipe, the other end of the return spring is fixedly connected with the side wall of the elastic clamping plate, the height of the elastic clamping plate is smaller than that of the foil, and the end faces of the elastic clamping plate, which face each other, are both friction faces.
Preferably, the vertical plate is connected with the bottom groove in a sealing and sliding mode, the bottom of the electromagnetic top plate is the same as the top of the bottom magnetic block in magnetism, and the air outlet in the bottom of the nozzle corresponds to the top of the bottom magnetic block.
Preferably, the end faces of the traction plate and the supporting plate, which are back to back, are provided with electric telescopic rods, and the other ends of the electric telescopic rods are fixedly connected with the inner wall of the oven.
Compared with the prior art, the invention has the following beneficial effects:
1. the device is provided with the feed inlet and the like which are mutually matched, so that an operator can conveniently rotate the wind shield, the moving stability of the traction plate and the support plate in the oven is improved, and the device is used for extruding the foil so that the foil is fixedly pulled by the telescopic pressure rod.
2. Through mutually supporting that sets up parts such as threaded rod and connecting plate, the drive threaded rod of being convenient for rotates, drives the connecting plate downstream and drives one side downstream of flexible depression bar, and flexible depression bar extrudees the foil spacingly, improves and wears to take efficiency to it is fixed firm, reduce simultaneously and pull the crumpling that the foil caused and turn over a waste, solved current manual work and worn to take the inefficiency, wear to take the fastness poor and waste foil's problem.
3. The electromagnetic top plate, the supporting plate and other components are matched with each other, so that the stability is high, the adaptability is good, the height limit requirement on the foil is met, meanwhile, the two side walls of the foil can be limited, fixed and clamped, the positioning effect is good, the opening number of the nozzles can be adjusted in a self-adaptive mode according to the width of the foil, the excessive waste of hot air resources is avoided, the energy is saved, the emission is reduced, the stability and the efficiency are high, particularly, the foil can be clamped and fixed in a self-adaptive mode when the foil is broken, the foil threading is completed again under the condition of no shutdown, the operation is simple, the energy is saved, and the environment is protected.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a perspective view of the present invention with the hot air dryer removed
FIG. 3 is a schematic view of the internal structure of the oven of the present invention;
FIG. 4 is a schematic view of a draft assembly of the present invention;
FIG. 5 is a schematic view of the bottom structure of the hot air dryer according to the present invention;
FIG. 6 is a schematic view of a spacing assembly according to the present invention;
FIG. 7 is a left side cross-sectional view of the stop assembly of the present invention;
fig. 8 is an enlarged schematic view of a portion a of fig. 7.
In the figure: 1. an oven; 2. a feed inlet; 3. a top cover; 4. a slideway; 5. a hot air dryer; 6. a hot air pipe; 7. a discharge port; 8. a slide rail; 9. drying the opening; 10. a traction plate; 11. connecting a hinge piece; 12. a telescopic compression bar; 13. a wind deflector; 14. an electric telescopic rod; 15. a support shaft; 16. mounting grooves; 17. a moving pulley; 18. a connecting plate; 19. a threaded rod; 20. a drive motor; 21. a bottom magnetic block; 22. a support plate; 23. an electromagnetic top plate; 24. a vertical plate; 25. a bottom groove; 26. a connecting spring; 27. a thermal expansion bellows; 28. an elastic splint; 29. a return spring; 30. a nozzle; 31. an air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a tape threading assembly of a lithium battery coating machine comprises an oven 1, a controller is arranged on one side of the outer wall of the oven 1, the controller electrically controls each electrical element, a feed inlet 2 is formed in one side of the oven 1, a top cover 3 is arranged at the top of the oven 1, a drying port 9 is formed in the middle of the top cover 3, a hot air dryer 5 is slidably connected inside the drying port 9, multiple groups of nozzles 30 are uniformly arranged at the bottom of the hot air dryer 5 in an array mode, hot air is sprayed into the oven 1 along the drying port 9 by the hot air dryer 5, wind power drying is performed on foil, especially, the multiple groups of nozzles 30 are arranged to help to uniformly disperse hot air, and further effectively improve drying of coated lithium battery foil.
The middle part of the bottom of the inner cavity of the oven 1 is provided with the bottom magnetic block 21, the bottom magnetic block 21 has a curie temperature point, and the air outlet at the bottom of the nozzle 30 corresponds to the top of the bottom magnetic block 21, so that when the nozzle 30 directly faces the bottom magnetic block 21 and blows hot air out, the temperature of the bottom magnetic block 21 reaches the curie temperature point and loses magnetism, and when the hot air blowing device works normally, foil is located between the nozzle 30 and the bottom magnetic block 21 and blocks the hot air, so that the temperature of the bottom magnetic block 21 does not reach the curie temperature point, and the bottom magnetic block 21 has magnetism.
Inside and be close to the one end sliding connection of feed inlet 2 of oven 1 has backup pad 22, the top of backup pad 22 is equipped with spacing subassembly, spacing subassembly's effect is carried out spacing fixed to the foil, it is specific carry out high injecing to the foil after the coating is accomplished, and then avoid the lithium battery material at foil top to pile up the change that too much causes its performance, especially can also detect and press from both sides tightly the width of foil, and then not only improve stability and the high efficiency of foil when wearing to take and drive, and correspond the quantity that adjusting nozzle 30 was opened with the help of the detection to the foil width, it just to the foil top to realize nozzle 30, effectually avoid nozzle 30 to open too much and cause thermal loss, and hot-blast too much not only can cause the influence to the stoving of foil, still can cause the influence to the magnetism of end magnetic path 21 simultaneously, thereby reducing mechanism's normal performance.
Especially, when the foil in oven 1 takes place to take off, can also press from both sides tight spacing to the foil with the help of spacing subassembly to avoid shutting down many times and wear to take and cause too big energy loss, oven 1 is inside and keep away from the one end sliding connection of feed inlet 2 and have a traction plate 10, and the top of traction plate 10 is equipped with pulls the subassembly, pulls the subassembly and mainly wears to take to pull to the foil.
The limiting assembly comprises an electromagnetic top plate 23, the bottom of the electromagnetic top plate 23 is the same as the top magnetism of the bottom magnetic block 21, and therefore when the controller controls the electrified current of the electromagnetic top plate 23 to increase, the magnetic repulsion force between the corresponding electromagnetic top plate 23 and the bottom magnetic block 21 is increased, and the electromagnetic top plate 23 is driven to move up and down on the top of the supporting plate 22 through the magnetic repulsion force.
Specifically, two sets of bottom grooves 25 are symmetrically arranged at the bottom of the electromagnetic top plate 23, a connecting spring 26 is arranged at the inner top of each bottom groove 25, a vertical plate 24 is arranged at the bottom of the other end of each connecting spring 26, the bottom of the other end of each vertical plate 24 is fixedly connected with the top of the supporting plate 22, the vertical plates 24 are in sliding connection with the bottom grooves 25 in a sealing mode, when the magnetic repulsion force between the electromagnetic top plate 23 and the bottom magnetic blocks 21 is increased, the connecting springs 26 can be synchronously stretched to move upwards, thermal expansion corrugated pipes 27 are arranged at the bottoms of the opposite end faces of the vertical plates 24, elastic clamping plates 28 are arranged at the other ends of the thermal expansion corrugated pipes 27, distance sensors are arranged at the other ends of the elastic clamping plates 28 and used for detecting the distance values between the elastic clamping plates 28 and the ends of the two sides of the foil, the number of the nozzles 30 opened is adaptively controlled through the distance values, the width of hot air generated after the nozzles 30 are opened is the same as the width of the foil, the drying efficiency of the hot air dryer 5 for drying the foil is improved, and the foil can be clamped and fixed by the elastic clamping plates 28 when the elastic clamping plates 28 and the two side ends of the foil are in mutual extrusion contact.
Thermal expansion gas is arranged in the thermal expansion corrugated pipe 27, when the temperature in the oven 1 rises, the volume of the corresponding thermal expansion corrugated pipe 27 increases and drives the elastic clamping plates 28 at the end parts to move towards two side ends of the foil, the end surfaces of the two groups of vertical plates 24 facing each other are provided with return springs 29 inside the thermal expansion corrugated pipe 27, the other ends of the return springs 29 are fixedly connected with the side walls of the elastic clamping plates 28, the arrangement of the return springs 29 effectively improves the resetting property and the stability of the elastic clamping plates 28, and the height of the elastic clamping plates 28 is smaller than that of the foil, so that the clamping stability of the elastic clamping plates 28 to the foil is ensured, meanwhile, when the foil breaks, when the top of the foil is clamped and limited by the electromagnetic top plate 23, the elastic clamping plates 28 cannot obstruct downward movement of the electromagnetic top plate 23, the end surfaces of the elastic clamping plates 28 facing each other are friction surfaces, and when the extrusion force of the elastic clamping plates 28 to the foil is continuously increased by the friction surfaces, the friction forces of the elastic clamping plates 28 and the two side ends of the foil are continuously increased, and the foil cannot slide under the action of the friction forces.
Both sides of 1 inner chamber bottom of oven all are equipped with slide rail 8, the bottom of traction plate 10 and backup pad 22 all is equipped with back shaft 15, back shaft 15's quantity is four, mounting groove 16 has been seted up to back shaft 15's bottom, mounting groove 16's inboard is rotated and is connected with removal pulley 17, removal pulley 17 is located slide rail 8's inboard and with slide rail 8 sliding connection, mounting groove 16 is used for installing and spacing removal pulley 17, improve removal pulley 17's stability in use, and with the help of removal pulley 17 at the inside sliding connection of slide rail 8, further improve stability and the high efficiency that traction plate 10 and backup pad 22 removed.
Traction assembly includes two sets of connection hinges 11, the equal fixed connection in traction plate 10 top one side of connection hinges 11, the top of connection hinges 11 is rotated and is connected with flexible depression bar 12, it has connecting plate 18 to articulate between two flexible depression bars 12, the inside threaded connection of connecting plate 18 has threaded hole, and the inside threaded connection of threaded hole has threaded rod 19, the top of threaded rod 19 extends to the top of connecting plate 18 and is equipped with deep bead 13, block nozzle 30 exhaust hot-blast with the help of deep bead 13, hot-blast damage to connecting plate 18 and the threaded rod 19 of bottom when avoiding using for a long time, the top of traction plate 10 is equipped with driving motor 20, driving motor 20's top output and the bottom fixed connection of threaded rod 19, then driving motor 20 starts to drive threaded rod 19 and rotates, threaded rod 19 rotates and realizes reciprocating of connecting plate 18 through the threaded connection with the threaded hole threaded connection in the connecting plate 18, and then drive flexible depression bar 12 through connecting plate 18 along connecting hinges 11 and take place to rotate and press from both sides tight fixed and wear the area to the foil.
The bottom of flexible depression bar 12 is equipped with pressure sensor, and the bottom of flexible depression bar 12 is equipped with anti-skidding cushion, and anti-skidding cushion's bottom is equipped with the friction surface, and pressure sensor is used for detecting the packing force of flexible depression bar 12 to the foil, and anti-skidding cushion is used for improving flexible depression bar 12 and to the spacing effect of foil, prevents that the foil from skidding in the bottom of flexible depression bar 12, further improves the stability when wearing the area.
The mutual terminal surface of backing plate 10 and backup pad 22 back to each other all is equipped with electric telescopic handle 14, electric telescopic handle 14 the other end all with oven 1's inner wall fixed connection, controller control electric telescopic handle 14 starts can drive traction plate 10 or backup pad 22 lateral shifting in oven 1, and then realizes wearing of foil and drying, especially carries out the repeated area of wearing after taking absolutely, and work efficiency is high, easy operation.
When the hot air drying machine is used, the hot air drying machine 5 is not started to work in an initial state, the temperature inside the drying oven 1 is room temperature at the moment, the coated lithium battery foil penetrates between the electromagnetic top plate 23 and the supporting plate 22, in order to ensure that the foil can smoothly penetrate between the electromagnetic top plate 23 and the supporting plate 22, the controller controls the electrifying current of the electromagnetic top plate 23 to reach the maximum value, the magnetism of the electromagnetic top plate 23 is the maximum, the electromagnetic top plate 23 stretches the connecting spring 26 to move upwards to the maximum value by means of the magnetic repulsion force between the electromagnetic top plate 23 and the bottom magnetic block 21, specifically, the electromagnetic top plate 23 moves upwards on the outer surface of the vertical plate 24 by means of the bottom groove 25 at the bottom, and the distance between the bottom of the electromagnetic top plate 23 and the top of the supporting plate 22 reaches the maximum value.
Then the electric telescopic rod 14 at the end part of the traction plate 10 is started and drives the traction plate 10 to move towards the end close to the support plate 22 and finally to contact with the side end of the support plate 22, the end part of the lithium battery is inserted between the telescopic pressing rod 12 and the traction plate 10, meanwhile, the controller controls the driving motor 20 to be started and drives the threaded rod 19 to rotate in the forward direction, the threaded rod 19 rotates in the forward direction and drives the connection plate 18 to move downwards through threaded connection with a threaded hole in the connection plate 18, the connection plate 18 drives the telescopic pressing rod 12 to rotate downwards along the connection hinge piece 11 and to be in mutual extrusion contact with the top of the lithium battery foil when moving downwards, and when the pressure value detected by the pressure sensor reaches a set preset value, the fact that the telescopic pressing rod 12 clamps and fixes the foil at the moment is completed.
At this time, because the hot air dryer 5 is not started, the temperature in the oven 1 is at a room temperature value, the elastic clamping plates 28 extrude the thermal expansion corrugated pipes 27 under the elastic force of the return springs 29 and are at initial positions, at this time, the distance values between the end parts of the elastic clamping plates 28 and the two side ends of the foil are respectively detected by the distance sensors at the opposite end parts of the two groups of elastic clamping plates 28, the width of the foil and the position where the foil is located are correspondingly obtained, and the distance value controller controls the corresponding parts of the plurality of groups of nozzles 30 to be opened, so that the width of hot air formed after the nozzles 30 are opened is the same as the width of the foil, thereby ensuring that the nozzles 30 are directly opposite to the top of the foil for wind drying, avoiding the hot air waste discharged by part of the nozzles 30 and the influence of redundant hot air on the magnetism of the bottom magnetic blocks 21.
Especially, when the foil is dried, the coating height of the foil is known in advance, and in order to guarantee that the height of the coated foil is limited, the problem that the drying effect of the foil is poor due to the fact that the thickness of a lithium battery material at the top of the foil is too high when the foil is dried and the influence on subsequent processing is caused is avoided, at the moment, the controller controls the power-on current of the electromagnetic top plate 23 to be reduced, the magnetic repulsion force between the electromagnetic top plate 23 and the bottom magnetic block 21 is reduced, the electromagnetic top plate 23 is driven to move downwards for a certain height under the elastic force action of the connecting spring 26, and the distance between the bottom of the electromagnetic top plate 23 and the top of the supporting plate 22 is guaranteed to meet the set height limit value of the foil, so that the lithium battery material at the top of the foil is blocked and scraped by the electromagnetic top plate 23, and the stability and the high efficiency of the subsequent foil are guaranteed when the foil is dried.
Particularly, the height value between the top plate 23 and the supporting plate 22 and the magnitude of the current in the top plate 23 are effective, that is, when the current in the top plate 23 is smaller, the magnetic force at the bottom of the top plate 23 is smaller, and the magnetic repulsion between the top plate 23 and the bottom magnet block 21 is smaller, the top plate 23 is driven to move downward under the action of the elastic force of the connecting spring 26, and the quantity relationship between the magnitude of the current in the top plate 23 and the distance value between the bottom of the top plate 23 and the supporting plate 22 can be obtained through a plurality of experiments, and then the magnitude of the current in the top plate 23 is correspondingly adjusted by means of the quantity relationship, so that the height value between the top plate 23 and the supporting plate 22 can be obtained, and the specific quantity relationship is not described herein.
After the foil is fixed by limiting the height, the controller controls the electric telescopic rod 14 to start and drive the traction plate 10 to move towards the end close to the discharge port 7 and finally reach the discharge port 7, particularly, the speed of the electric telescopic rod 14 driving the traction plate 10 to move is the same as the transmission speed of the foil, so that stable and continuous forward feeding of the foil is guaranteed, when the foil reaches the discharge port 7, the controller controls the driving motor 20 to rotate reversely, the driving motor 20 rotates reversely to drive the threaded rod 19 to rotate reversely, the threaded rod 19 is matched with a threaded hole in the connecting plate 18 in a reverse rotation mode to drive the connecting plate 18 to move upwards to an initial height, the connecting plate 18 drives the telescopic pressure rod 12 to rotate upwards to a proper height, the bottom of the telescopic pressure rod 12 is separated from the top of the foil, the pressure value detected by the pressure sensor is recovered to the initial value, the foil is manually pulled to a subsequent device along the discharge port 7, and finally threading of the foil is completed.
Meanwhile, the controller controls the hot air dryer 5 to be started and sends hot air into the oven 1 along the drying port 9, the foil is dried under the action of the hot air, the hot air dried on the foil is discharged along the air outlet 31 due to the blocking of the foil, and the nozzle 30 at the bottom of the hot air dryer 5 is not directly opposite to the bottom magnetic block 21, the bottom magnetic block 21 still has magnetism, the temperature in the oven 1 continuously rises along with the work of the hot air dryer 5, the volume of the thermal expansion corrugated pipe 27 is increased due to the thermal expansion and contraction principle of thermal expansion gas, the elastic clamping plate 28 at the end part of the thermal expansion corrugated pipe 27 stretches the reset spring 29 to move close to the end part of the foil and contact with the two side ends of the foil, the limit and the stability of the foil in the conveying process of the foil are effectively improved by virtue of the elastic extrusion contact of the elastic clamping plate 28 on the side wall of the foil, the electromagnetic top plate 23 at the top of the thermal expansion corrugated pipe 27 is matched with the foil to limit at the top of the supporting plate 22, and the distance value detected by the distance sensor is zero.
Along with the foil is in the inside continuous transmission of oven 1, press from both sides tightly fixedly to the foil with the help of electromagnetism roof 23 and elasticity splint 28, hot-air dryer 5 cooperates nozzle 30 to dry the lithium cell material at foil top, and the foil after the stoving is discharged along discharge gate 7, and whole device is in stable operating condition.
When the electromagnetic top plate is used for a long time or the properties of the foil change, the foil is broken at a certain position in the oven 1, at this time, the foil which is originally continuous and in a tensioned state is broken, and because the foil is tensioned in the transmission process, the foil can move towards two sides to be separated when the foil is broken, after the foil is broken between the nozzle 30 and the bottom magnetic block 21, the nozzle 30 directly faces the bottom magnetic block 21, hot air applied to the bottom magnetic block 21 by the hot air dryer 5 along the nozzle 30 is continuously increased, the temperature of the end of the bottom magnetic block 21 is continuously increased and is higher than the temperature of the curie temperature point of the end of the foil, at this time, the magnetism of the bottom magnetic block 21 suddenly disappears, the magnetic repulsion force applied to the electromagnetic top plate 23 by the bottom magnetic block 21 disappears, the electromagnetic top plate 23 is driven to move downwards along the vertical plate 24 under the elastic force of the connecting spring 26, the electromagnetic top plate 23 moves downwards and is matched with the supporting plate 22 to clamp and fix the foil, meanwhile, the electromagnetic top plate 23 extrudes the top plate 27, when the top of the corrugated pipe 27 is subjected to extrusion, the elastic clamping plate 28 moves downwards, the elastic clamping plate moves towards the two sides, and the outer end of the foil is separated from the clamping plate, and the clamping plate 28, and the outer end of the foil can not be rubbed, and the clamping plate 22, so that the foil can not be separated from the outer end, and the outer end of the foil can be finally, and the outer end of the clamping plate, and the foil can be separated from the clamping plate, and the outer end, and the corrugated pipe can not be thermally expanded.
Meanwhile, the foil at the end of the discharge port 7 after being disconnected is continuously conveyed to the subsequent stage, after the foil at the top of the traction plate 10 after being disconnected is conveyed to the subsequent stage, the controller controls the two groups of electric telescopic rods 14 to be started and drives the traction plate 10 and the support plate 22 to be close to each other towards the middle part, when the traction plate 10 and the support plate 22 are contacted with each other, the foil at the top of the support plate 22 is inserted into the top of the traction plate 10 again, the controller controls the driving motor 20 to be started and drives the threaded rod 19 to rotate in the forward direction, the threaded rod 19 rotates in the forward direction in the same process, the telescopic pressure rod 12 is driven by the connecting plate 18 to rotate downwards and clamp the end part of the foil, and the pressure value detected by the pressure sensor reaches the set pressure value.
Then, because the traction plate 10 and the support plate 22 are located at the bottom of the nozzle 30 and block hot air sprayed from the nozzle 30, the temperature around the bottom magnetic block 21 is gradually reduced to be below the curie temperature point, the magnetism of the bottom magnetic block 21 is gradually increased, the electromagnetic top plate 23 stretches the connecting spring 26 to move upwards to the original position and is separated from the clamping state of the top of the foil by means of the magnetic repulsion force of the bottom magnetic block 21 to the electromagnetic top plate 23, then the controller controls the output ends of the two groups of electric telescopic rods 14 to be reversely shortened to the original position, the traction plate 10 and the support plate 22 are both restored to the original position, the end part of the foil after being disconnected extends out along the discharge port 7 and is conveyed to a subsequent conveying device, after the support plate 22 is restored to the original position, the electromagnetic top plate 23 limits the top of the foil again, and the top of the elastic clamping plate 28 restores to the normal working state again after being separated from the extrusion of the electromagnetic top plate 23 and clamps and fixes the two side walls of the foil, thereby completing the non-stop tape threading process after the foil is broken.
The device stability is high, adaptability is good, satisfy the limit for height requirement to the foil, can also carry out spacing fixed clamp to the both sides wall of foil simultaneously and press from both sides tightly, location effect is good, and can also be according to the quantity of opening of width self-adaptation adjustment nozzle 30 of foil, thereby avoid excessive extravagant hot-blast resource, energy saving and emission reduction, it is stable high-efficient, especially, self-adaptation presss from both sides tight fixedly to the foil when the foil takes place to break, and accomplish wearing again of foil under the circumstances of not shutting down, and is simple in operation, and energy is saved, green.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a lithium cell coating machine wears to take subassembly, includes the oven, outer wall one side of oven is equipped with controller, its characterized in that: a top cover is arranged at the top of the oven, a drying opening is formed in the middle of the top cover, a hot air dryer is connected to the inside of the drying opening in a sliding mode, and a plurality of groups of nozzles are uniformly arranged at the bottom of the hot air dryer in an array mode;
a feed port is formed in one side of the oven, a bottom magnetic block is arranged in the middle of the bottom of an inner cavity of the oven, the bottom magnetic block has a Curie temperature point, a supporting plate is connected to one end, close to the feed port, inside the oven in a sliding mode, a limiting assembly is arranged at the top of the supporting plate, one end, far away from the feed port, inside the oven in the sliding mode is connected with a traction plate in a sliding mode, and a traction assembly is arranged at the top of the traction plate;
the limiting assembly comprises an electromagnetic top plate, two groups of bottom grooves are symmetrically formed in the bottom of the electromagnetic top plate, a connecting spring is arranged at the inner top of each bottom groove, a vertical plate is arranged at the bottom of the other end of the connecting spring, the bottom of the other end of the vertical plate is fixedly connected with the top of the supporting plate, a thermal expansion corrugated pipe is arranged at the bottom of the end surface, facing the vertical plate, an elastic clamping plate is arranged at the other end of the thermal expansion corrugated pipe, and a distance sensor is arranged at each other end of the elastic clamping plate;
the traction assembly comprises two groups of connecting hinge parts, the connecting hinge parts are fixedly connected to one side of the top of the traction plate, the tops of the connecting hinge parts are rotatably connected with telescopic compression rods, a connecting plate is hinged between the opposite end surfaces of the two telescopic compression rods, and a threaded hole is formed in the connecting plate;
a threaded rod is connected with the inner part of the threaded hole in a threaded manner, the top of the threaded rod extends to the upper part of the connecting plate and is provided with a wind shield, a driving motor is arranged at the top of the traction plate, and the top output end of the driving motor is fixedly connected with the bottom of the threaded rod;
the end surfaces of the traction plate and the supporting plate, which are back to back, are provided with electric telescopic rods, and the other ends of the electric telescopic rods are fixedly connected with the inner wall of the oven;
the vertical plate is connected with the bottom groove in a sealing and sliding mode, the bottom of the electromagnetic top plate is the same as the top of the bottom magnetic block in magnetism, and the air outlet in the bottom of the nozzle corresponds to the top of the bottom magnetic block.
2. The threading assembly of claim 1 for a lithium battery coater, wherein: the oven is characterized in that slide rails are arranged on two sides of the bottom of the inner cavity of the oven, support shafts are arranged at the bottoms of the traction plate and the support plate, the number of the support shafts is four, mounting grooves are formed in the bottoms of the support shafts, movable pulleys are rotatably connected to the inner sides of the mounting grooves, and the movable pulleys are located on the inner sides of the slide rails and are in sliding connection with the slide rails.
3. The threading assembly of claim 1 for a lithium battery coater, wherein: the top of oven just is located the both sides of stoving mouth all are equipped with the slide, the inside of slide with hot air drying machine both sides end sliding connection, hot air drying machine's top intercommunication has the hot-blast main, the other end intercommunication of hot-blast main has the forced draught blower.
4. The threading assembly of claim 1 for a lithium battery coater, wherein: the electric control device comprises a controller, a feed inlet, a plurality of baking ovens, a plurality of air outlets, a plurality of circulating pipelines and a plurality of air outlets, wherein the controller electrically controls each electric element, the side wall of each baking oven, which is far away from the feed inlet, is provided with a discharge outlet, the discharge outlet is matched with the feed inlet, a plurality of groups of air outlets are uniformly arrayed on the two side walls of each baking oven, and the outer end parts of the air outlets are communicated with the circulating pipelines.
5. The threading assembly of claim 1 for a lithium battery coater, wherein: the bottom of flexible depression bar is equipped with pressure sensor, the bottom of flexible depression bar is equipped with anti-skidding cushion, the bottom of anti-skidding cushion is equipped with the friction surface.
6. The threading assembly of a lithium battery coater according to claim 1, wherein: the thermal expansion corrugated pipe is characterized in that thermal expansion gas is arranged in the thermal expansion corrugated pipe, return springs are arranged on the opposite end faces of the two groups of vertical plates and inside the thermal expansion corrugated pipe, the other ends of the return springs are fixedly connected with the side walls of the elastic clamping plates, the height of each elastic clamping plate is smaller than that of the foil, and the opposite end faces of the elastic clamping plates are friction faces.
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| CN211756636U (en) * | 2020-02-21 | 2020-10-27 | 北京北方华创新能源锂电装备技术有限公司 | Lifting heating device for lithium battery coating machine |
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| JP2003170102A (en) * | 2001-09-27 | 2003-06-17 | Fuji Photo Film Co Ltd | Method and apparatus drying coating film |
| JP4904782B2 (en) * | 2005-11-16 | 2012-03-28 | パナソニック株式会社 | Electrode plate manufacturing method and manufacturing apparatus thereof |
| CN104006642A (en) * | 2014-06-13 | 2014-08-27 | 徐州天龙回转支承有限公司 | Electromagnetic heat conduction oil hot air circulation fabric drying device |
| CN206464200U (en) * | 2017-01-08 | 2017-09-05 | 合肥国轩高科动力能源有限公司 | Coating machine oven of electrode slice |
| CN109482723B (en) * | 2017-09-13 | 2023-10-17 | 河北银隆新能源有限公司 | Belt threading device of lithium battery coating machine |
| CN108816645B (en) * | 2018-06-22 | 2020-07-07 | 东南大学 | Base band extrusion type coating system of power lithium battery |
| CN208661585U (en) * | 2018-07-05 | 2019-03-29 | 浙江衡远新能源科技有限公司 | A kind of lithium battery coating machine |
| WO2022116022A1 (en) * | 2020-12-02 | 2022-06-09 | 王维纲 | Coating and drying device for lithium battery production |
| CN214975443U (en) * | 2021-07-15 | 2021-12-03 | 汕头市曜辉新能源有限公司 | Oven subassembly of coating machine for lithium cell production |
| CN114700232B (en) * | 2022-04-09 | 2023-02-03 | 深圳市智力昌智能设备有限公司 | Coating, drying and rolling mill |
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| CN211756636U (en) * | 2020-02-21 | 2020-10-27 | 北京北方华创新能源锂电装备技术有限公司 | Lifting heating device for lithium battery coating machine |
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