CN213529385U

CN213529385U - Coating structure of coating machine

Info

Publication number: CN213529385U
Application number: CN202022555647.4U
Authority: CN
Inventors: 李文
Original assignee: Yichang Hubai New Energy Co ltd
Current assignee: Yichang Hubai New Energy Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-25
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a coating machine coating structure, include: a coating roll; the back roll and the coating roll are relatively extruded and rotated; the material groove is arranged below the coating roller and comprises a material homogenizing plate, the material homogenizing plate divides the material groove into a material supplementing area and a material dipping area, and the material homogenizing plate is spaced from the bottom of the material groove. The storage tank comprises a discharge port, the discharge port is located above the material supplementing area, and a discharge valve is installed at the discharge port. The battery material in the storage tank is intermittently supplemented to the material supplementing area through the discharge hole, the battery material in the material supplementing area flows to the material dipping area through the interval between the material homogenizing plate and the trough, and the material homogenizing plate plays a role in leveling the liquid level and eliminating surface bubbles to a certain extent. The setting of homogenizing board can make fast and be stained with the material district liquid level and become level and smooth, and then reduces the degree of depth of the interior battery material of silo when guaranteeing that the coating roll is stained with and gets enough battery material to the surplus of battery material when reducing the shut down reduces extravagantly. And the uniform material plate also eliminates partial bubbles on the liquid level of the battery material to a certain extent, and improves the coating quality.

Description

Coating structure of coating machine

Technical Field

The utility model relates to a lithium cell production facility field, concretely relates to coating machine coating structure.

Background

An important step in the production process of the lithium battery is to coat the battery material on a substrate metal sheet to prepare a pole piece, and whether the coating is uniform or not has great influence on the performance of the battery. In order to ensure that the coating is as uniform as possible, when roll-type coating is adopted, the full contact between the coating roll and the electrode material needs to be ensured, but because the electrode material has viscosity, the liquid level of the newly added electrode material cannot be quickly leveled through flow, and only the depth of the electrode material in the trough can be maintained, so that the residual materials in the trough are more when the machine is stopped every time, and the materials are not easy to recover and clean, and the waste phenomenon is serious.

SUMMERY OF THE UTILITY MODEL

The problem that the clout is many in the silo when shutting down to current roller-type coating machine, the utility model provides a coating machine coating structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coater coating structure comprising:

the coating roller is driven to rotate by a driving device;

the back roll is extruded relative to the coating roll and is driven by the coating roll to rotate;

the material mixing plate divides the material groove into a material supplementing area and a material dipping area, so that the coating roller can extend into the material dipping area of the material groove, and a gap is formed between the material mixing plate and the bottom of the material groove;

the storage tank comprises a discharge port, the discharge port is located above the material supplementing area, and a discharge valve is installed at the discharge port.

The battery material in the storage tank is intermittently supplemented to the material supplementing area through the discharge hole, the battery material in the material supplementing area flows to the material dipping area through the interval between the material homogenizing plate and the trough, and the material homogenizing plate plays a role in leveling the liquid level and eliminating surface bubbles to a certain extent.

Compared with the prior art, the utility model discloses following beneficial effect has:

the setting of homogenizing board can make fast and be stained with the material district liquid level and become level and smooth, and then reduces the degree of depth of the interior battery material of silo when guaranteeing that the coating roll is stained with and gets enough battery material to the surplus of battery material when reducing the shut down reduces extravagantly. And the uniform material plate also eliminates partial bubbles on the liquid level of the battery material to a certain extent, and improves the coating quality.

Drawings

Fig. 1 is a schematic structural diagram of a coating structure of a coating machine according to an embodiment of the present invention.

Fig. 2 is a detailed structural schematic diagram of a trough according to an embodiment of the present invention.

In the above drawings: 1. a coating roll; 2. a backing roll; 3. a material storage tank; 4. a discharge valve; 5. a trough; 6. a material homogenizing plate; 7. a defoaming net; 8. a chute; 9. an arc-shaped slot; 10. and a flow deflector.

Detailed Description

As shown in fig. 1, the embodiment of the utility model discloses a coating machine coating structure, include:

the coating roller 1 is driven to rotate by a driving device;

the back roll 2 is extruded relative to the coating roll 1 and is driven to rotate by the coating roll 1;

the material tank 5 is fixedly arranged below the coating roller 1 and comprises a material homogenizing plate 6, the material homogenizing plate 6 divides the material tank 5 into a material supplementing area and a material dipping area, so that the coating roller 1 can extend into the material dipping area of the material tank 5, and a gap is formed between the material homogenizing plate 6 and the bottom of the material tank 5;

storage tank 3, including the discharge gate, the discharge gate is located feed supplement district top, bleeder valve 4 is installed to the discharge gate.

The setting of homogenizing board 6 can make fast and be stained with the material district liquid level and level, and then reduces the degree of depth of the battery material in silo 5 when guaranteeing that coating roll 1 is stained with and gets enough battery material to the surplus of battery material when reducing the shut down reduces extravagantly. And the material homogenizing plate 6 also eliminates partial air bubbles on the liquid level of the battery material to a certain extent, and improves the coating quality.

As shown in fig. 2, it is preferable that a defoaming net 7 is installed at a position spaced from the bottom of the material homogenizing plate 6 and the trough 5. Air bubbles in the sticky material area can be eliminated to a certain extent.

Preferably, a chute 8 is fixed on the side wall of the trough 5, and the material homogenizing plate 6 is in sliding connection with the chute 8. The distance between the material homogenizing plate 6 and the bottom of the trough 5 can be adjusted according to the amount of the disposable material supplementing, namely, the speed of the battery material flowing from the material supplementing area to the material sticking area is adjusted, and overflow of the battery material caused by mismatching of the flow rate, the material supplementing amount and the volume of the material supplementing area is prevented.

Preferably, the bottom of the trough 5 is provided with an arc-shaped groove 9 in the area right below the coating roller 1, and the radius of the arc-shaped groove 9 is larger than that of the coating roller 1. The arc-shaped structure arranged at the bottom of the trough 5 can obviously reduce the minimum storage amount in the trough 5 when the coating roll 1 is ensured to be stained with enough battery materials, thereby reducing the waste amount of excess materials during shutdown.

Preferably, the side wall of the feeding area of the trough 5 is inclined and tangent to the edge of one side of the arc-shaped trough 9. Further reducing the amount of excess material during shutdown.

Preferably, the discharge port of the storage tank 3 is connected with a flow deflector 10, the flow deflector 10 is made of a flexible material, the top of the flow deflector is surrounded to form a tubular structure matched with the discharge port, the bottom of the flow deflector is opened to form a plane matched with the trough 5, and the flow deflector 10 is lapped on the inclined side wall of the feeding area of the trough 5. The flow deflector 10 can be used for gently supplementing materials to the trough 5, and bubbles generated in the material supplementing process are reduced.

Preferably, a discharge pipe (not shown) is connected to the bottom end of the arc-shaped groove 9, and is provided with a discharge valve. The discharging pipe is arranged to facilitate discharging of residual battery materials and cleaning of the trough 5 after shutdown.

Preferably, a liquid level sensor (not shown in the figure) is installed in the material dipping area of the material tank 5, and the liquid level sensor is in signal connection with the discharge valve 4. A certain degree of automation may reduce labor costs.

Preferably, a stirring mechanism (not shown) is installed in the storage tank 3. The uniformity of the electrode material is maintained.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A coater coating structure, comprising:

the coating roller is driven to rotate by a driving device;

2. The coating structure of claim 1, wherein: and a defoaming net is arranged at the interval between the material homogenizing plate and the bottom of the material groove.

3. The coating structure of claim 1, wherein: the side wall of the material groove is fixed with a sliding groove, and the material homogenizing plate is in sliding connection with the sliding groove.

4. The coating structure of claim 1, wherein: an arc-shaped groove is formed in the area, located right below the coating roll, of the bottom of the material groove, and the radius of the arc-shaped groove is larger than that of the coating roll.

5. The coating structure of claim 4, wherein: the side wall of one side of the feed supplement area of the trough is inclined and tangent to the edge of one side of the arc-shaped trough.

6. The coating structure of claim 5, wherein: the material storage tank is characterized in that a flow deflector is connected to a discharge port of the material storage tank, the flow deflector is made of flexible materials, the top of the flow deflector is surrounded to form a tubular structure matched with the discharge port, the bottom of the flow deflector is opened to form a plane matched with the trough, and the flow deflector is lapped on the inclined side wall of the feed supplement area of the trough.

7. The coating structure of claim 4, wherein: the bottom end of the arc-shaped groove is connected with a discharge pipe, and the discharge pipe is provided with a discharge valve.

8. The coating structure of claim 1, wherein: and a material dipping area of the trough is provided with a liquid level sensor, and the liquid level sensor is in signal connection with a discharge valve.

9. The coating structure of claim 1, wherein: and a stirring mechanism is arranged in the material storage tank.