阅读说明：本技术 一种锂电池生产用极片涂布装置 (Pole piece coating device for lithium battery production ) 是由 罗森聪 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种锂电池生产用极片涂布装置,包括底座,所述底座上端平行固接有第一安装板和第二安装板,所述第一安装板侧壁上端固定连接有第一支撑架,所述第一支撑架上固定安装有松卷筒,所述第一安装板与第二安装板上端共同固接有竖直设置的固定板,所述固定板侧壁上设有配合松卷筒使用的第一拉紧辊和第二拉紧辊,所述固定板侧壁上还安装有两个第一电机,两个所述第一电机的输出杆均贯穿至固定板的另一侧并套设有一个涂布辊。本发明能够使极片材料两面的浆料涂布更加均匀,且能够控制极片浆料的涂布厚度,操作便捷；极片浆料的烘干定型效果好,能够保证后续生产的锂电池质量更好。(The invention discloses a pole piece coating device for lithium battery production, which comprises a base, wherein a first mounting plate and a second mounting plate are fixedly connected to the upper end of the base in parallel, a first support frame is fixedly connected to the upper end of the side wall of the first mounting plate, a loosening drum is fixedly mounted on the first support frame, a vertically arranged fixing plate is fixedly connected to the upper ends of the first mounting plate and the second mounting plate together, a first tensioning roller and a second tensioning roller which are matched with the loosening drum for use are arranged on the side wall of the fixing plate, two first motors are further mounted on the side wall of the fixing plate, and output rods of the two first motors penetrate through to the other side of the fixing plate and are sleeved with a coating roller. The invention can ensure that the slurry on the two sides of the pole piece material is coated more uniformly, can control the coating thickness of the pole piece slurry and has convenient operation; the drying and shaping effects of the pole piece slurry are good, and the quality of the lithium battery produced subsequently can be better.)

1. The utility model provides a pole piece coating unit for lithium cell production, includes base (1), its characterized in that, the parallel rigid coupling in base upper end has first mounting panel (2) and second mounting panel (3), first mounting panel (2) lateral wall upper end fixedly connected with first support frame (4), fixed mounting has pine reel (5) on first support frame (4), the common rigid coupling in first mounting panel (2) and second mounting panel (3) upper end has fixed plate (6) of vertical setting, be equipped with first taut roller (7) and the taut roller of second (8) that cooperation pine reel (5) used on fixed plate (6) lateral wall, still install two first motors on fixed plate (6) lateral wall, two the output pole of first motor all runs through to the opposite side of fixed plate (6) and overlaps and is equipped with one coating roll (9), the symmetry rigid coupling has two cooperation coating rolls (9) to use on first mounting panel (2) and second mounting panel (3) Slurry tank (10), and the lower extreme of two coating rolls (9) all corresponds the submergence in slurry tank (10), still be equipped with from last to down between first mounting panel (2) and second mounting panel (3) and scribble even mechanism, scrape material mechanism and stoving mechanism in proper order, base (1) upper end still is equipped with guide roll (35) and winding mechanism.

2. The pole piece coating device for producing the lithium battery as claimed in claim 1, wherein the leveling mechanism comprises a sliding plate (11) slidably connected to the side wall of the first mounting plate (2), the side wall of the sliding plate (11) is fixedly connected with a mounting frame (12), the mounting frame (12) is rotatably connected with two leveling rollers (13), a fixed shaft (14) is perpendicularly welded to the side wall of one end of the sliding plate (11) far away from the mounting frame (12), one end of the fixed shaft (14) far away from the sliding plate (11) penetrates through the other side of the first mounting plate (2) and is welded with a horizontally arranged transmission seat (15), a sliding groove (16) is formed in the side wall of the transmission seat (15), a transmission shaft (17) is slidably connected in the sliding groove (16), and a second support frame (18) is fixedly connected to the outer side wall of the first mounting plate (2), a rotating seat (19) is fixedly connected on the second supporting frame (18), a rotating rod (20) is rotatably connected on the side wall of the rotating seat (19), a turntable (21) is fixedly sleeved at one end of the rotating rod (20) far away from the rotating seat (19), one end of the transmission shaft (17) far away from the sliding groove (16) is fixedly connected to the surface of the turntable (21), and the length of the sliding chute (16) is not less than twice of the distance from the transmission shaft (17) to the circle center of the turntable (21), a second motor (22) is also fixedly arranged on the second supporting frame (18), a first synchronous wheel is sleeved on the rotating rod (20) and the output rod of the second motor (22), a first synchronous belt (23) is meshed between the two first synchronous wheels, the side wall of the first mounting plate (2) is provided with a sliding rail (24) matched with the sliding plate (11) for use and a sliding hole (25) matched with the fixed shaft (14) for use.

3. The pole piece coating device for producing the lithium battery as claimed in claim 1, wherein the scraping mechanism comprises two bearings (26) symmetrically penetrating through the fixed mounting on the side walls of the first mounting plate (2) and the second mounting plate (3), two rotating pipes (27) are respectively fixedly sleeved on the inner rings of the bearings (26), two inner walls of the rotating pipes (27) are respectively provided with an internal thread, a movable rod (28) is sleeved on the inner part of each rotating pipe (27) through the thread, two limit grooves are respectively formed on the side wall of one end of each movable rod (28) between the first mounting plate (2) and the second mounting plate (3), L-shaped limit rods (29) used by matching the limit grooves are fixedly connected on the side walls of the first mounting plate (2) and the second mounting plate (3), two symmetrical fixedly connected ends of the movable rods (28) between the first mounting plate (2) and the second mounting plate (3) are provided with two scraping shovels (30) And scraping blades (31) are welded at the upper ends of the two scraping shovels (30), and a rotating handle (32) is fixedly sleeved outside one end, far away from the scraping shovels (30), of the rotating pipe (27).

4. The pole piece coating device for producing the lithium battery as claimed in claim 1, wherein the drying mechanism comprises a drying box (33) fixedly connected between the first mounting plate (2) and the second mounting plate (3), through holes are formed in both the upper end and the lower end of the drying box (33), a hot air blower (34) is fixedly mounted on the outer side wall of the first mounting plate (2), and an air outlet pipe of the hot air blower (34) penetrates and extends into the drying box (33).

5. The pole piece coating device for producing the lithium battery as claimed in claim 1, wherein the winding mechanism comprises a winding roller (36) and a third motor (37) fixedly mounted on the upper end of the base (1), a second synchronous wheel is fixedly sleeved on each of a roller shaft of the winding roller (36) and an output rod of the third motor (37), and a second synchronous belt (38) is meshed between the two second synchronous wheels.

6. The coating device for the pole pieces used for the production of the lithium battery as claimed in claim 4, wherein an arc wind shield (39) is further fixedly connected to the inner top wall of one end of the drying box (33) close to the air outlet pipe of the hot air blower (34).

Technical Field

The invention relates to the technical field of lithium battery production, in particular to a pole piece coating device for lithium battery production.

Background

With the development of science and technology, new materials with excellent performance and special properties become the breakthrough point of energy development, and lithium batteries are representative products combining new materials with energy development. The lithium battery has the functions of energy storage and output buffering due to the characteristics of the material of the lithium battery, and the characteristics of safety, stability and environmental protection of the lithium battery are more suitable for the current development concept. In recent years, the preparation of lithium batteries is more and more emphasized, and the yield of the lithium batteries is increased year by year.

In the production process of lithium batteries, positive electrode slurry is coated on an aluminum foil and dried to form a positive electrode plate, and negative electrode slurry is coated on a copper foil and dried to form a negative electrode plate. However, when the conventional coating machine is used for producing the lithium battery pole piece, the slurry can be coated on both surfaces of the pole piece material, the slurry cannot be uniformly coated, the coating thickness of the slurry cannot be controlled, and the factors easily influence the quality of the lithium battery.

Therefore, we propose a pole piece coating device for lithium battery production.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a pole piece coating device for lithium battery production.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a lithium cell production is with pole piece coating unit, includes the base, the parallel rigid coupling in base upper end has first mounting panel and second mounting panel, first mounting panel lateral wall upper end fixedly connected with first support frame, fixed mounting has the pine reel on the first support frame, the common rigid coupling in first mounting panel and second mounting panel upper end has the fixed plate of vertical setting, be equipped with first straining roller and the second straining roller that cooperation pine reel used on the fixed plate lateral wall, still install two first motors on the fixed plate lateral wall, two the output pole of first motor all runs through to the opposite side of fixed plate and overlaps and is equipped with a coating roll, symmetrical rigid coupling has two slurry grooves that cooperate the coating roll to use on first mounting panel and the second mounting panel, and the lower extreme of two coating rolls all corresponds the submergence in slurry groove, still be equipped with in proper order from last to down between first mounting panel and the second mounting panel and scribble the mechanism, Scraping mechanism and stoving mechanism, the base upper end still is equipped with guide roll and winding mechanism.

In the above-mentioned pole piece coating device for lithium battery production, the uniform coating mechanism comprises a sliding plate slidably connected on the side wall of the first mounting plate, the side wall of the sliding plate is fixedly connected with a mounting frame, the mounting frame is rotatably connected with two uniform coating rollers, the side wall of one end of the sliding plate away from the mounting frame is vertically welded with a fixed shaft, one end of the fixed shaft away from the sliding plate penetrates through the other side of the first mounting plate and is welded with a horizontally arranged transmission seat, the side wall of the transmission seat is provided with a chute, the inside of the chute is slidably connected with a transmission shaft, the outer side wall of the first mounting plate is also fixedly connected with a second support frame, the second support frame is fixedly connected with a rotation seat, the side wall of the rotation seat is rotatably connected with a rotation rod, one end of the rotation rod away from the rotation seat is fixedly, and the length of spout is no less than the twice distance of transmission shaft to the carousel centre of a circle, still fixed mounting has the second motor on the second support frame, all overlap on the output pole of dwang and second motor and be equipped with a first synchronizing wheel, two the common meshing has first synchronous belt between the first synchronizing wheel, set up the slide rail that cooperation sliding plate used and the sliding hole that cooperation fixed axle used on the first mounting panel lateral wall.

In the pole piece coating device for producing the lithium battery, the scraping mechanism comprises two bearings which are symmetrically and fixedly arranged on the side walls of the first mounting plate and the second mounting plate in a penetrating way, the inner rings of the two bearings are fixedly sleeved with a rotating pipe, the inner walls of the two rotating pipes are provided with internal threads, and a movable rod is sleeved in the two rotating pipes in a penetrating way through threads, the side wall of one end of each movable rod between the first mounting plate and the second mounting plate is provided with a limit groove, the side walls of the first mounting plate and the second mounting plate are fixedly connected with L-shaped limiting rods used for matching with the limiting grooves, one ends of the two movable rods positioned between the first mounting plate and the second mounting plate are symmetrically and fixedly connected with two scraping shovels, and the upper ends of the two scraping shovels are welded with scraping blades, and the outer part of one end of the rotating pipe far away from the scraping shovels is fixedly sleeved with a rotating handle.

In foretell pole piece coating device for lithium cell production, stoving mechanism includes the stoving case of common rigid coupling between first mounting panel and second mounting panel, the through-hole has all been seted up at both ends about the stoving case, fixed mounting has the air heater on the lateral wall of first mounting panel, the play tuber pipe of air heater runs through the inside that extends to the stoving case.

In foretell pole piece coating device for lithium cell production, winding mechanism includes wind-up roll and the third motor of fixed mounting in the base upper end, all fixed cover is equipped with a second synchronizing wheel, two on the roller of wind-up roll and the output shaft of third motor the common meshing has the second hold-in range between the second synchronizing wheel.

In the pole piece coating device for lithium battery production, an arc wind shield is further fixedly connected to the inner top wall of one end, close to the air outlet pipe of the air heater, in the drying box.

The invention has the advantages that:

1. two sides of the pole piece material are coated simultaneously by two coating rollers with the lower ends immersed in the slurry groove, and then the rotary table is driven by a second motor to rotate to drive the transmission shaft to transmit, so that the sliding plate integrally slides up and down along the side wall of the first mounting plate, and the slurry coated on the two sides of the pole piece material is uniformly coated by the two uniform coating rollers moving up and down, and the slurry coating on the two sides of the pole piece material is more uniform in the pole piece production process;

2. the rotating handle is arranged to drive the rotating pipe to rotate, and the movable rod which is connected with the rotating pipe in a threaded manner and limited is driven to move left and right to adjust the distance between the two scraping shovels and the two scraping blades and the two sides of the pole piece material; the scraping blades can scrape the slurry with excessive thickness on the pole piece material by controlling the distance between the two scraping shovels and the two scraping blades and the two sides of the pole piece material, so that the coating thickness of the pole piece slurry is controlled; the redundant slurry scraped by the scraping blade can fall into the scraping shovel and be recycled, so that the material is saved;

3. the drying box with uniform heat is used for drying and shaping the slurry coated on the pole piece material, and the drying box is used for rolling after drying, so that the product quality of subsequent production can be better.

Drawings

FIG. 1 is a schematic structural diagram of a pole piece coating apparatus for lithium battery production according to the present invention;

FIG. 2 is an enlarged view of the structure of part A in FIG. 1;

FIG. 3 is a structural side view of a driving seat portion of a pole piece coating apparatus for lithium battery production according to the present invention;

FIG. 4 is a schematic structural diagram of an inner side wall of a first mounting plate in a pole piece coating device for lithium battery production according to the present invention;

fig. 5 is a schematic structural diagram of a scraping mechanism portion in a pole piece coating device for lithium battery production according to the present invention.

In the figure: the automatic coating machine comprises a base 1, a first mounting plate 2, a second mounting plate 3, a first support frame 4, a loosening drum 5, a fixing plate 6, a first tensioning roller 7, a second tensioning roller 8, a coating roller 9, a slurry tank 10, a sliding plate 11, a mounting frame 12, a coating roller 13, a fixing shaft 14, a transmission seat 15, a sliding chute 16, a transmission shaft 17, a second support frame 18, a rotating seat 19, a rotating rod 20, a rotating disk 21, a second motor 22, a first synchronous belt 23, a sliding rail 24, a sliding hole 25, a bearing 26, a rotating pipe 27, a movable rod 28, a limiting rod 29L-shaped rod 30, a scraping shovel 31, a scraping blade 31, a rotating handle 32, a drying box 33, a hot air blower 34, a guide roller 35, a winding roller 36, a third motor 37, a second synchronous belt 38 and an arc-shaped air baffle 39.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.