CN210730042U

CN210730042U - Coating device for lithium battery production

Info

Publication number: CN210730042U
Application number: CN201921673071.2U
Authority: CN
Inventors: 田仕力; 龙剑
Original assignee: Jiangxi Magnanimity Power New Energy Co Ltd
Current assignee: Jiangxi Magnanimity Power New Energy Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-06-12
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a coating device for producing lithium batteries, which belongs to the technical field of lithium battery production, and comprises a base, a conveyor belt is arranged outside the base, a slurry box is arranged on the left side of the top of the base, a discharge pipe is fixedly connected with the bottom of the slurry box, brush hair is bonded at the bottom of the discharge pipe, a motor is arranged at the top of the slurry box, the bottom of the motor is detachably connected with a transmission shaft extending to the inside of the slurry box, the motor drives a stirring rod to rotate through the transmission shaft, the stirring rod can stir slurry, the condition that the slurry is settled and partially solidified due to long-time standing in the slurry box is avoided, the use quality of the slurry in the slurry box is improved, a flow guide pipe can shunt redundant heat in a drying box to blow the surface of a pole piece which is going to enter the drying box, and pre-heating treatment is carried, the condition that the coating is not firmly bonded because the heating time is short is avoided.

Description

Coating device for lithium battery production

Technical Field

The utility model relates to a lithium cell production technical field especially relates to a coating unit is used in lithium cell production.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, and because the chemical characteristics of the lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use, and the lithium battery becomes the mainstream at present along with the development of scientific technology.

Application number is CN 108465619A's publication a coating device for lithium cell, through designing a set of synchronous cylinder and base, realizes the function of workstation liftable, makes things convenient for different height workman's convenient operation, can improve production efficiency, is equipped with the static eliminator, prevents that static from causing the damage to the lithium cell.

The coating device has the following defects that 1, the prepared and mixed slurry is placed in a slurry box and is coated by a coating device, and the coating quality is affected because the slurry is easy to precipitate and solidify after being kept in the slurry box for a long time; 2. after the slurry is coated, surface drying treatment is needed, generally, the slurry directly passes through a heated drying box to be heated, and the slurry passes through the drying box for a short time, so that the phenomena of paint retraction and poor bonding caused by the fact that partial pole pieces are not completely dried easily exist, and therefore, the coating device for lithium battery production is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coating unit is used in lithium cell production aims at can stirring inside the thick liquids punch-out equipment and avoids the thick liquids solidification layering of stewing to can improve the drying process quality to the coating.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of coating unit is used in lithium cell production, the on-line screen storage device comprises a base, base externally mounted has the conveyer belt, the thick liquids case is installed in base top left side, thick liquids case bottom fixedly connected with arranges the material pipe, it bonds to arrange the material socle portion and has the brush hair, the motor is installed at the thick liquids case top, the motor bottom can be dismantled and be connected with and extend to the inside transmission shaft of thick liquids case, transmission shaft fixed surface is connected with stirring rod and is a plurality of, the stoving case is installed on base top right side, stoving case surface is close to thick liquids case one side fixedly connected with honeycomb duct, stoving incasement side wall bonds and has the heating wire, the fan is installed at stoving roof portion, fan defeated wind.

Optionally, the base surface is fixedly connected with two fixed plates, the top of each fixed plate is movably connected with a top plate, and the bottom of each top plate is fixedly connected with a scraper.

Optionally, the two ends of the bottom of the top plate are fixedly connected with threaded columns penetrating through the fixing plate, the surfaces of the threaded columns are connected with nuts in a matched mode, and the nuts are located at the bottom of the fixing plate.

Optionally, the motor is electrically connected to an external power source through a motor switch.

Optionally, the fan and the heating wire are both electrically connected with an external power supply through a circuit switch.

The utility model has the advantages as follows:

1. the motor is installed at the top of thick liquids case, and the motor is opened after the thick liquids case is arranged in to the thick liquids that the configuration is good, and the high-speed rotation of motor output to drive the rotation of poking bar through extending to the inside transmission shaft of thick liquids case, poking bar rotates and to stir the processing to thick liquids, avoids thick liquids to stand for a long time inside the thick liquids case and leads to the condition of sediment and partial solidification, has improved the service quality of the inside thick liquids of thick liquids case.

2. Stoving incasement portion heating wire switch-on converts the electric energy into heat energy, the heat blows to the pole piece surface downwards and dries coating under the blowing of fan, one side of stoving case is fixed with the honeycomb duct, the honeycomb duct can be shunted the surplus heat of stoving incasement portion, make it blow to the pole piece surface that will get into stoving incasement portion, carry out pre-heating treatment to coating, both improved the heat utilization ratio of stoving incasement portion, avoid again because the shorter condition that leads to coating bonding insecure of heat time.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a coating apparatus for producing a lithium battery according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a scraper of a coating device for lithium battery production according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal circuit structure of a coating apparatus for lithium battery production according to an embodiment of the present invention.

In the figure: 1. a base; 2. a conveyor belt; 3. a slurry tank; 301. a discharge pipe; 302. brushing; 4. a motor; 401. a motor switch; 402. a drive shaft; 403. a stirring rod; 5. a fixing plate; 6. a top plate; 601. a threaded post; 602. a nut; 7. a scraper; 8. a drying box; 801. a flow guide pipe; 802. an electric heating wire; 9. a fan; 901. and (4) a circuit switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A coating apparatus for producing a lithium battery according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, 2 and 3, a coating apparatus for producing a lithium battery according to an embodiment of the present invention includes a base 1, the outer part of the base 1 is provided with a conveyor belt 2, the left side of the top of the base 1 is provided with a slurry box 3, the bottom of the slurry box 3 is fixedly connected with a discharge pipe 301, the bottom of the discharge pipe 301 is adhered with brush hairs 302, the top of the slurry tank 3 is provided with a motor 4, the bottom of the motor 4 is detachably connected with a transmission shaft 402 extending to the inside of the slurry tank 3, the surface of the transmission shaft 402 is fixedly connected with a plurality of stirring rods 403, a drying box 8 is arranged on the right side of the top of the base 1, a guide pipe 801 is fixedly connected on one side of the surface of the drying box 8, which is close to the slurry box 3, the heating wire 802 is bonded on the inner side wall of the drying box 8, the fan 9 is installed at the top of the drying box 8, and the air delivery end of the fan 9 extends to the inside of the drying box 8.

Illustratively, a conveyor belt 2 outside a base 1 is used for conveying pole pieces to be coated, a motor 4 is installed at the top of a slurry tank 3, the prepared slurry is placed in the slurry tank 3 and then the motor 4 is started, the output end of the motor 4 rotates at a high speed and drives a stirring rod 403 to rotate through a transmission shaft 402 extending into the slurry tank 3, the stirring rod 403 rotates to stir the slurry, the situation that the slurry is settled and partially solidified due to long-time standing inside the slurry tank 3 is avoided, a heating wire 802 inside a drying box 8 is powered on to convert electric energy into heat energy, the heat energy is blown downwards to the pole piece surface under the blowing of a fan 9 to dry the coating, a guide pipe 801 is fixed at one side of the drying box 8, the guide pipe 801 can shunt redundant heat inside the drying box 8 to be blown to the pole piece surface to be dried inside the drying box 8 to preheat the coating, not only improves the heat utilization rate inside the drying box 8, but also avoids the condition of unstable bonding of the coating caused by short heating time.

Referring to fig. 1 and 2, the surface of the base 1 is fixedly connected with two fixing plates 5, the top of each fixing plate 5 is movably connected with a top plate 6, and the bottom of each top plate 6 is fixedly connected with a scraper 7.

Illustratively, the surface of the pole piece can be subjected to a blade coating treatment by a scraper 7 fixed at the bottom of the top plate 6, so that the coating thickness of the surface of the pole piece is uniform.

Referring to fig. 1 and 2, both ends of the bottom of the top plate 6 are fixedly connected with threaded columns 601 penetrating through the fixing plate 5, the surfaces of the threaded columns 601 are connected with nuts 602 in a matching manner, and the nuts 602 are located at the bottom of the fixing plate 5.

By way of example, the height of the scraper 7, and thus the thickness of the coating on the surface of the pole piece, can be adjusted by screwing the nut 602 to adjust its position on the surface of the threaded post 601.

Referring to fig. 1 and 3, the motor 4 is electrically connected to an external power source through a motor switch 401.

For example, the power supply of the motor 4 can be controlled by the motor switch 401 to control the operation and shutdown of the motor 4.

Referring to fig. 1 and 3, the blower 9 and the heating wire 802 are electrically connected to an external power source through a circuit switch 901.

For example, the circuit switch 901 can control the on/off of the circuits of the fan 9 and the heating wire 802, so as to control the working states of the fan 9 and the heating wire 802.

When the coating machine is used, the conveying belt 2 outside the base 1 is used for conveying lithium battery pole pieces needing coating, under the conveying action of the conveying belt 2, the pole pieces firstly pass through the bottom of the slurry box 3, the motor 4 is installed at the top of the slurry box 3, the prepared slurry is placed inside the slurry box 3, the motor 4 is switched on through the motor switch 401, the motor 4 is started, the output end of the motor 4 rotates at a high speed, the transmission shaft 402 extending into the slurry box 3 drives the stirring rod 403 to rotate, the stirring rod 403 rotates to stir the slurry, the condition that the slurry is deposited and partially solidified due to long-time standing inside the slurry box 3 is avoided, the use quality of the slurry inside the slurry box 3 is improved, the slurry inside the slurry box 3 is discharged through the discharging pipe 301 and finally coated on the surfaces of the pole pieces through the bristles 302, the coated pole pieces continue to be transmitted, the fixing plates 5 are fixed on two sides of the base 1, the top of the fixed plate 5 is connected with a top plate 6 through a threaded column 601, the bottom of the top plate 6 is fixed with a scraper 7, the scraper 7 can carry out scraping treatment on the surface of a pole piece, slurry with excessive thickness is scraped, the thickness of the slurry on the surface of the pole piece is uniform, the position of the scraper on the surface of the threaded column 601 is adjusted by screwing a nut 602 to achieve the purpose of adjusting the height of the top plate 6, the position height of the scraper 7 is further adjusted, the height of the scraper 7 can be flexibly adjusted according to different coating thickness requirements to scrape slurry with different thicknesses, the pole piece with uniform coating thickness passes through the scraper 7 to continue transmission, a heating wire 802 is arranged inside the drying box 8, a circuit is switched on through a circuit switch 901 to enable the heating wire 802 and a fan 9 to run, the heating wire 802 is made of iron-chromium-aluminum alloy, electric energy can be converted into heat energy after the power is switched on, the heat, one side of stoving case 8 is fixed with honeycomb duct 801, and honeycomb duct 801 can shunt the inside unnecessary heat of stoving case 8, makes it blow to the pole piece surface that will get into stoving case 8 inside, preheats the processing to coating, has both improved the inside heat utilization rate of stoving case 8, avoids again because the shorter condition that leads to coating bonding insecure of heat duration, has further promoted lithium-ion battery pole piece's coating quality.

It should be noted that, the utility model relates to a coating unit is used in lithium cell production, including base 1, conveyer belt 2, thick liquids case 3, arrange material pipe 301, brush hair 302, motor 4, motor switch 401, transmission shaft 402, poking bar 403, fixed plate 5, roof 6, screw thread post 601, nut 602, scraper 7, stoving case 8, honeycomb duct 801, heating wire 802, fan 9, circuit switch 901, the part is general standard component or the part that technical personnel in the field know, its structure and principle all are that this technical personnel all can learn through the technical manual or learn through conventional experimental approach.

The motor 4, the motor switch 401, the fan 9 and the fan switch 901 are conventional products in the prior art, the motor 4 is Y180L in model, the motor switch 401 is NS2-25 in model, the fan 9 is SY-FYSJ01 in model, the circuit switch 901 is HK2 in model, and the internal structure is not explained.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a coating device for lithium cell production, includes base (1), its characterized in that, base (1) externally mounted has conveyer belt (2), thick liquids case (3) are installed in base (1) top left side, thick liquids case (3) bottom fixedly connected with arranges material pipe (301), it has brush hair (302) to arrange material pipe (301) bottom bonding, motor (4) are installed at thick liquids case (3) top, motor (4) bottom can be dismantled and be connected with transmission shaft (402) that extend to thick liquids case (3) inside, transmission shaft (402) fixed surface is connected with stirring rod (403) and stirring rod (403) are a plurality ofly, stoving case (8) are installed on base (1) top right side, stoving case (8) surface is close to thick liquids case (3) one side fixedly connected with honeycomb duct (801), stoving case (8) inside wall bonds and has heating wire (802), the top of the drying box (8) is provided with a fan (9), and the air delivery end of the fan (9) extends into the drying box (8).

2. The coating device for producing the lithium battery as claimed in claim 1, wherein the base (1) is fixedly connected with two fixing plates (5) on the surface, the top of each fixing plate (5) is movably connected with a top plate (6), and the bottom of each top plate (6) is fixedly connected with a scraper (7).

3. The coating device for producing the lithium battery as recited in claim 2, wherein both ends of the bottom of the top plate (6) are fixedly connected with threaded columns (601) penetrating through the fixing plate (5), the surfaces of the threaded columns (601) are connected with nuts (602) in a matching manner, and the nuts (602) are located at the bottom of the fixing plate (5).

4. The coating device for lithium battery production as claimed in claim 1, wherein the motor (4) is electrically connected to an external power source through a motor switch (401).

5. The coating device for lithium battery production as claimed in claim 1, wherein the blower (9) and the heating wire (802) are electrically connected to an external power source through a circuit switch (901).