CN212434656U

CN212434656U - Lithium battery pole piece coating device

Info

Publication number: CN212434656U
Application number: CN202021034375.7U
Authority: CN
Inventors: 黄香钰; 王金阁; 王付重; 陈海同
Original assignee: Huaibei Jinai New Material Technology Co ltd
Current assignee: Huaibei Jinai New Material Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-01-29
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a lithium battery pole piece coating device, which comprises a transmission mechanism and a coating mechanism, wherein the coating mechanism is arranged above the transmission mechanism; the transmission mechanism comprises a supporting plate, a fixed box, a connecting rod, a driving shaft, a conveying roller and a conveying belt, and the coating mechanism comprises a shell frame, a hydraulic rod, an extrusion plate, a glue storage box, a coating head and a coating roller; the stripper plate will glue and extrude to battery pole piece surface through scribbling the leftover of bolt of cloth from storing up gluey case, later the electrode slice along with the conveyer belt removes and scribbles the coating roll contact, the coating roll carries out even coating and adsorbs the gluey on battery pole piece surface, prevent extravagantly, it generally is the scraper coating machine to have solved present coating equipment, utilize the thickness of scraper gap control thick liquids, carry out the knife coating with the flat board, cause coating thickness's inhomogeneous, and can't coat polylith or many places simultaneously, lead to the inhomogeneous technical problem of coating.

Description

Lithium battery pole piece coating device

Technical Field

The utility model belongs to the technical field of lithium battery processing, concretely relates to lithium battery pole piece coating unit.

Background

In the manufacturing process of the lithium ion battery, coating is a core process and is also a main process step for determining the performance of the battery. In order to ensure the coating accuracy and consistency, a coater with high price and large volume is needed to coat the anode and the cathode of the lithium ion battery. At present, coating equipment is generally a scraper coater, the thickness of slurry is controlled by utilizing a scraper gap, a flat plate is used for blade coating, the slurry cannot be ensured to continuously enter, the coating thickness is not uniform, and a plurality of blocks or a plurality of positions cannot be coated simultaneously, so that the coating is not uniform.

The utility model patent CN202356261U discloses a battery pole piece coater, including hopper, scraper plate and bottom plate, the lower port of hopper is located between scraper plate and the bottom plate for the battery electrode thick liquids that will hold trickles to the bottom plate of placing waiting to scribble the metal forming, the scraper plate removes on bottom plate upper portion to with the coating of battery electrode thick liquids on the metal forming. The utility model discloses an increase the hopper that is used for holding battery electrode thick liquids on the scraper plate to provide the thick liquids that lasts for the coating ware, realized the longer battery pole piece of coating, guaranteed the even of coating layer, solved the problem of making longer, the even pole piece of thickness under the laboratory condition, can wide application in mill, laboratory, research unit.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a lithium battery pole piece coating device.

The utility model discloses the technical problem who solves:

at present, coating equipment is generally a blade coater, the thickness of slurry is controlled by utilizing a blade gap, and a flat plate is used for blade coating, so that the coating thickness is not uniform, and a plurality of blocks or a plurality of positions cannot be coated simultaneously, so that the coating is not uniform.

The purpose of the utility model can be realized by the following technical scheme:

a lithium battery pole piece coating device comprises a transmission mechanism and a coating mechanism, wherein the coating mechanism is arranged above the transmission mechanism;

the conveying mechanism comprises a supporting plate, a fixed box, a connecting rod, driving shafts, conveying rollers and a conveying belt, wherein the fixed box is arranged on the side surface of the supporting plate, the bottom end of the connecting rod is fixed at one end of the upper surface of the supporting plate, the top end of the connecting rod is arranged on the driving shafts, a plurality of conveying rollers are arranged between the two driving shafts, and the conveying belt is arranged on the surfaces of the driving;

coating mechanism includes the shell frame, the hydraulic stem, the stripper plate, store up gluey case, scribble leftover of bolt of cloth and coating roll, shell frame mounting is in fixed case top, the conveyer belt passes the inside bottom of shell frame, the inside top upper surface of three hydraulic stem evenly mounted shell frame, the hydraulic stem top is fixed with the inside top of shell frame, surface mounting on hydraulic stem bottom and the stripper plate, it passes through dead lever horizontal installation inside the shell frame to store up gluey case both ends, it is equipped with the opening to store up gluey case top, the stripper plate cooperates with storage gluey case top, store up a plurality of leftover of bolts of cloth of gluey case bottom evenly mounted, scribble leftover of bolt of cloth top and storage gluey bottom intercommunication, scribble the leftover of bolt of cloth.

Furthermore, hydraulic stem, stripper plate, storage glue case, scribble leftover of bolt of cloth and coating roll all install inside the shell frame, and hydraulic stem, stripper plate, storage glue case and scribble leftover of bolt of cloth are from last down installing in proper order.

Further, connecting rod, drive shaft, transfer roller and conveyer belt are all installed in the backup pad top.

Further, the coating roller is fixed inside the shell frame through a fixing rod, and the surface of the coating roller is coated with sponge with the thickness of 2 cm.

Has the advantages that:

the utility model relates to a motor is opened in lithium battery pole piece coating unit working process, the motor drives the drive shaft and rotates, and then drive the conveyer belt and rotate, place battery pole piece on the conveyer belt, to glue in adding the storage glue case, the hydraulic stem drives stripper plate downstream, stripper plate and the cooperation of storage glue case top, the stripper plate will glue and extrude to battery pole piece surface through the coating head in the storage glue case, later electrode piece is along with the conveyer belt removes and the coating roll contact, the coating roll carries out even coating and adsorbs with the glue on battery pole piece surface, prevent extravagantly, it is generally the scraper coating machine to have solved present coating equipment, utilize the thickness of scraper clearance control thick liquids, carry out the knife coating with the flat board, cause coating thickness's inhomogeneous, and can't coat to polylith or many places simultaneously, lead to the inhomogeneous technical problem of coating.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a lithium battery pole piece coating apparatus of the present invention;

FIG. 2 is a schematic view of the coating mechanism of FIG. 1;

fig. 3 is a side view of the interior of the housing frame.

In the figure: 1. a transport mechanism; 11. a support plate; 12. a fixed box; 13. a connecting rod; 14. a drive shaft; 15. a conveying roller; 16. a conveyor belt; 2. a coating mechanism; 21. a housing frame; 22. a hydraulic lever; 23. a pressing plate; 24. a glue storage box; 25. coating heads; 26. and (4) coating the roll.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the coating apparatus for lithium battery pole piece of the present invention includes a transmission mechanism 1 and a coating mechanism 2, wherein the coating mechanism 2 is installed above the transmission mechanism 1;

as shown in fig. 1, the conveying mechanism 1 includes a supporting plate 11, a fixed box 12, a connecting rod 13, a driving shaft 14, a conveying roller 15 and a conveying belt 16, the fixed box 12 is installed on the side surface of the supporting plate 11, the connecting rod 13, the driving shaft 14, the conveying roller 15 and the conveying belt 16 are all installed above the supporting plate 11, the bottom end of the connecting rod 13 is fixed at one end of the upper surface of the supporting plate 11, the top end of the connecting rod 13 is installed at the driving shaft 14, a plurality of conveying rollers 15 are installed between the two driving shafts 14, the conveying belt 16 is installed on the surfaces of the driving shaft;

as shown in fig. 1-3, the coating mechanism 2 includes a housing frame 21, a hydraulic rod 22, a squeezing plate 23, a glue storage box 24, a coating head 25 and a coating roller 26, the hydraulic rod 22, the squeezing plate 23, the glue storage box 24, the coating head 25 and the coating roller 26 are all installed inside the housing frame 21, the hydraulic rod 22, the squeezing plate 23, the glue storage box 24 and the coating head 25 are sequentially installed from top to bottom, the housing frame 21 is installed above a fixed box 12, a conveyor belt 16 passes through the bottom end inside the housing frame 21, the three hydraulic rods 22 are uniformly installed on the upper surface of the top end inside the housing frame 21, the top end of the hydraulic rod 22 is fixed with the top end inside the housing frame 21, the bottom end of the hydraulic rod 22 is fixed with the upper surface of the squeezing plate 23, two ends of the glue storage box 24 are horizontally installed inside the housing frame 21 through fixed rods, the top end of the glue storage box 24 is provided with an opening, the squeezing plate 23 is matched with the, the top of coating head 25 communicates with storage glue case 24 bottom, coating roll 26 passes through the dead lever to be fixed inside shell frame 21, coating roll 26 surface cladding sponge 2cm thick, coating roll 26 and coating head 25 are all installed in the conveyer belt 16 top, hydraulic stem 22 drives stripper plate 23 and moves down, stripper plate 23 and the cooperation of storage glue case 24 top, stripper plate 23 will glue and extrude to the battery pole piece surface through coating head 25 in storing up glue case 24, later the electrode piece moves along with conveyer belt 16, with the contact of coating roll 26, coating roll 26 carries out even coating and adsorbs the gluey on battery pole piece surface, prevent extravagantly.

The utility model relates to a lithium-ion battery pole piece coating device working process is as follows:

firstly, hydraulic rods 22, an extrusion plate 23, a glue storage box 24 and a coating head 25 are sequentially arranged from top to bottom, a shell frame 21 is arranged above a fixed box 12, a conveyor belt 16 penetrates through the bottom end inside the shell frame 21, the three hydraulic rods 22 are uniformly arranged on the upper surface of the top end inside the shell frame 21, and the top ends of the hydraulic rods 22 are fixed with the top end inside the shell frame 21;

second step, open the motor, the motor drives drive shaft 14 and rotates, and then drive conveyer belt 16 and rotate, place the battery pole piece on conveyer belt 16, to glue and add and store up gluey case 24 in, hydraulic stem 22 drives stripper plate 23 and moves down, stripper plate 23 and the cooperation of storing up gluey case 24 top, stripper plate 23 will glue and extrude to the battery pole piece surface through scribbling leftover of bolt of cloth 25 in storing up gluey case 24, later the electrode piece moves along with conveyer belt 16 and scribbles the coating roll 26 contact, scribble coating roll 26 and carry out even coating and absorption with the gluey on battery pole piece surface, prevent extravagantly.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. The coating device for the lithium battery pole piece is characterized by comprising a transmission mechanism (1) and a coating mechanism (2), wherein the coating mechanism (2) is arranged above the transmission mechanism (1);

the conveying mechanism (1) comprises a supporting plate (11), a fixing box (12), a connecting rod (13), a driving shaft (14), a conveying roller (15) and a conveying belt (16), wherein the fixing box (12) is installed on the side surface of the supporting plate (11), the bottom end of the connecting rod (13) is fixed at one end of the upper surface of the supporting plate (11), the top end of the connecting rod (13) is installed on the driving shaft (14), a plurality of conveying rollers (15) are installed between the two driving shafts (14), and the conveying belt (16) is installed on the surfaces of the driving shaft (14) and;

the coating mechanism (2) comprises a shell frame (21), hydraulic rods (22), an extrusion plate (23), a glue storage box (24), coating heads (25) and a coating roller (26), the shell frame (21) is installed above a fixed box (12), a conveyor belt (16) penetrates through the inner bottom end of the shell frame (21), the upper surface of the inner top end of the shell frame (21) is uniformly installed by three hydraulic rods (22), the top end of each hydraulic rod (22) is fixed with the inner top end of the shell frame (21), the bottom end of each hydraulic rod (22) is fixed with the upper surface of the extrusion plate (23), the two ends of the glue storage box (24) are horizontally installed inside the shell frame (21) through fixed rods, the top end of the glue storage box (24) is provided with an opening, the extrusion plate (23) is matched with the top end of the glue storage box (24), the bottom ends of the glue storage box (24) are uniformly installed with the coating heads (25), the top ends of the coating heads (, the coating roller (26) and the coating head (25) are both arranged above the conveyor belt (16).

2. The coating device for the lithium battery pole pieces, according to claim 1, is characterized in that the hydraulic rod (22), the extrusion plate (23), the glue storage tank (24), the coating head (25) and the coating roller (26) are all installed inside the shell frame (21), and the hydraulic rod (22), the extrusion plate (23), the glue storage tank (24) and the coating head (25) are sequentially installed from top to bottom.

3. The coating device for the pole pieces of the lithium battery as claimed in claim 1, wherein the connecting rod (13), the driving shaft (14), the conveying roller (15) and the conveying belt (16) are all installed above the supporting plate (11).

4. The lithium battery pole piece coating device as claimed in claim 1, wherein the coating roller (26) is fixed inside the shell frame (21) through a fixing rod, and the surface of the coating roller (26) is coated with sponge with the thickness of 2 cm.