阅读说明：本技术 一种涂覆装置 (Coating device ) 是由 李广欣 彭寿 潘锦功 傅干华 蒋猛 赵雷 于 2021-08-12 设计创作，主要内容包括：本发明实施例公开一种涂覆装置,包括：涂覆辊,所述涂覆辊的辊面设置弹性多孔材料涂覆层；上压辊,所述上压辊设置在所述涂覆辊的上方,且所述上压辊和所述涂覆辊之间留有基板通道；加液槽,所述加液槽设置在所述涂覆辊的下方,且所述涂覆辊的下部浸入至所述加液槽内的药剂中；这样,在使用时,将基板从所述基板通道内进行输送,在输送过程中,所述上压辊将基板紧压在所述涂覆辊上,所述涂覆辊上的多孔材料涂覆层在转动过程中会浸入到所述加液槽内的药剂中,当与所述基板接触时,会将药剂均匀地涂抹在基板上。(The embodiment of the invention discloses a coating device, which comprises: the coating roller is provided with an elastic porous material coating layer on the roller surface; the upper pressing roller is arranged above the coating roller, and a substrate channel is reserved between the upper pressing roller and the coating roller; the liquid adding groove is arranged below the coating roller, and the lower part of the coating roller is immersed into the medicament in the liquid adding groove; in this way, when in use, the substrate is conveyed from the substrate channel, the upper pressure roller presses the substrate against the coating roller in the conveying process, the porous material coating layer on the coating roller is immersed into the medicament in the liquid adding groove in the rotating process, and the medicament is uniformly coated on the substrate when the porous material coating layer is in contact with the substrate.)

1. A coating apparatus, comprising:

the coating roller (1), the roller surface of the coating roller (1) is provided with an elastic porous material coating layer;

the upper pressing roller (2) is arranged above the coating roller (1), and a substrate channel is reserved between the upper pressing roller (2) and the coating roller (1);

the liquid adding tank (4) is arranged below the coating roller (1), and the lower part of the coating roller (1) is immersed into the medicament in the liquid adding tank (4).

2. A coating apparatus according to claim 1, wherein the upper press roll (2) is drivingly connected to the first displacement adjustment means,

or the coating roller (1) is in driving connection with a first displacement adjusting device,

or the upper press roll (2) and the coating roll (1) are in driving connection with a first displacement adjusting device.

3. A coating apparatus as in claim 1, further comprising:

the extrusion roller (3) is arranged on one side of the coating roller (1), and the roller surface of the extrusion roller (3) is abutted to the elastic porous material coating layer.

4. A coating apparatus according to claim 3, wherein said squeeze roll (3) is drivingly connected to the second displacement adjustment means.

5. A coating apparatus according to claim 1, wherein there are more than two coating rolls (1), and the upper press roll (2) is arranged above each coating roll (1).

6. A coating apparatus according to claim 1, wherein said feed reservoir (4) comprises:

the liquid supply groove body (41), the liquid supply groove body (41) is arranged below the coating roller (1), the liquid supply groove body (41) is connected with a storage groove (42), the storage groove (42) is connected with a liquid distribution groove (43), and a titration detection device is further arranged in the storage groove (42);

the liquid leakage groove body (44) is arranged below the liquid supply groove body (41).

7. A coating apparatus according to claim 6, wherein the liquid supply tank (41) is connected to the storage tank (42) by a circulation pipe (51);

the liquid preparation tank (43) is connected with the storage tank (42) through a connecting pipeline, and the liquid preparation tank (43), the storage tank (42) and the circulating pipeline (51) are also connected with a liquid conveying pipe (52);

the storage tank (42) and the leakage tank body (44) are also connected with a liquid discharge pipe (53).

8. A coating device according to claim 7, wherein liquid filters (6) are provided on both the connecting pipe and the supply pipe of the circulation pipe (51).

9. The coating device according to claim 1, characterized in that the coating device further comprises a turnover table system (7), the turnover table system (7) comprises an upper conveying leather roller (71) and a lower conveying leather roller (72), a substrate conveying channel is arranged between the upper conveying leather roller (71) and the lower conveying leather roller (72), the substrate conveying channel is communicated with the substrate conveying channel, a clamping device (73) used for controlling the size of the substrate conveying channel is further arranged between the upper conveying leather roller (71) and the lower conveying leather roller (72), a turnover motor (74) is further connected to the clamping device (73), and the turnover motor (74) is mounted on the base.

10. A coating apparatus according to claim 1, further comprising a protective chamber (8), wherein the coating roller (1), the upper pressure roller (2) and the liquid adding tank (4) are all disposed in the protective chamber (8), and a negative pressure air exhaust device (81) is disposed on the top of the protective chamber (8).

Technical Field

The invention relates to mechanical equipment, in particular to a coating device.

Background

At present, when the existing coating device is used for roll coating cadmium chloride on a chip, a dropper is generally arranged above the substrate for fixed-point dosing, and then the coating device is used for coating, but when the existing coating device is used, the liquid medicine cannot be uniformly infiltrated by the coating roller in the coating process due to the fixed-point liquid adding mode, so that the coating of the substrate is not uniform, and the problems of poor film coating uniformity, easy crystallization, residual liquid medicine on a light receiving surface, poor battery appearance and the like of the substrate in actual production are caused.

Disclosure of Invention

In order to solve the above technical problems, embodiments of the present invention provide a coating apparatus, which can make a coating roller absorb a chemical when the coating roller rotates by providing an elastic porous material coating layer on the coating roller, and extrude the material absorbed in the elastic porous material coating layer onto a substrate by an extrusion effect of an upper pressing roller, so as to ensure uniform coating of a film layer of the substrate and avoid crystallization and other problems.

In order to achieve the purpose, the technical scheme of the embodiment of the invention is realized as follows:

an embodiment of the present invention provides a coating apparatus, including:

the coating roller is provided with an elastic porous material coating layer on the roller surface;

the upper pressing roller is arranged above the coating roller, and a substrate channel is reserved between the upper pressing roller and the coating roller;

and the liquid adding groove is arranged below the coating roller, and the lower part of the coating roller is immersed into the medicament in the liquid adding groove.

In the embodiment of the invention, the upper press roller is in driving connection with the first displacement adjusting device,

or the coating roller is in driving connection with the first displacement adjusting device,

or the upper press roll and the coating roll are in driving connection with the first displacement adjusting device.

In an embodiment of the present invention, the coating apparatus further comprises:

and the extrusion roller is arranged on one side of the coating roller, wherein the roller surface of the extrusion roller is abutted to the elastic porous material coating layer.

In an embodiment of the invention, the squeeze roller is drivingly connected to the second displacement adjustment device.

In the embodiment of the invention, more than two coating rollers are provided, and the upper pressing roller is arranged above each coating roller.

In an embodiment of the present invention, the liquid adding tank includes:

the liquid supply groove body is arranged below the coating roller and is connected with a storage groove, the storage groove is connected with the liquid distribution groove, and a titration detection device is further arranged in the storage groove;

the liquid leakage groove body is arranged below the liquid supply groove body.

In the embodiment of the invention, the liquid supply groove body storage grooves are connected through a circulating pipeline;

the liquid preparation tank is connected with the storage tank through a connecting pipeline, and liquid conveying pipes are further connected to the liquid preparation tank, the storage tank and the circulating pipeline;

and the storage tank and the leakage tank body are also connected with a liquid discharge pipe.

In the embodiment of the invention, liquid filters are arranged on the connecting pipe and the liquid supply pipeline of the circulating pipeline.

In the embodiment of the invention, the coating device further comprises a turnover table system, the turnover table system comprises an upper conveying leather roller and a lower conveying leather roller, a substrate conveying channel is arranged between the upper conveying leather roller and the lower conveying leather roller and is communicated with the substrate channel, a clamping device used for controlling the size of the substrate conveying channel is further arranged between the upper conveying leather roller and the lower conveying leather roller, the clamping device is further connected with a turnover motor, and the turnover motor is arranged on the base.

In the embodiment of the invention, the coating device further comprises a protection cavity, the coating roller, the upper pressing roller and the liquid adding groove are all arranged in the protection cavity, and the top of the protection cavity is provided with a negative pressure air exhaust device.

An embodiment of the present invention provides a coating apparatus, including: the coating roller is provided with an elastic porous material coating layer on the roller surface; the upper pressing roller is arranged above the coating roller, and a substrate channel is reserved between the upper pressing roller and the coating roller; the liquid adding groove is arranged below the coating roller, and the lower part of the coating roller is immersed into the medicament in the liquid adding groove; in this way, when in use, the substrate is conveyed from the substrate channel, the upper pressure roller presses the substrate against the coating roller in the conveying process, the porous material coating layer on the coating roller is immersed into the medicament in the liquid adding groove in the rotating process, and the medicament is uniformly coated on the substrate when the porous material coating layer is in contact with the substrate.

Drawings

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

FIG. 2 is a schematic sectional view of a coating apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a liquid adding tank according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a flipping table system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a coating apparatus with a flipping table system according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

An embodiment of the present invention provides a coating apparatus, as shown in fig. 1 and 2, including: the coating roller comprises a coating roller 1, wherein an elastic porous material coating layer is arranged on the roller surface of the coating roller 1; the upper pressing roller 2 is arranged above the coating roller 1, and a substrate channel is reserved between the upper pressing roller 2 and the coating roller 1; and the liquid adding tank 4 is arranged below the coating roller 1, and the lower part of the coating roller 1 is immersed into the medicament in the liquid adding tank 4.

Here, the coating roller 1 is used for coating a medicament on a substrate, and an elastic porous material coating layer is disposed on the coating roller 1, wherein the elastic porous material coating layer includes but is not limited to sponge, and when in use, the elastic porous material coating layer coats the coating roller 1, the elastic porous material coating layer can absorb the medicament by immersing into the medicament, and also can absorb the medicament by manual dropping, and when the elastic porous material coating layer is squeezed, the absorbed medicament can overflow from the elastic porous material coating layer.

The upper pressing roller 2 is arranged above the coating roller 1, specifically, the upper pressing roller 2 is arranged right above the coating roller 1, and when the coating roller is used, the upper pressing roller 2 is used for conveying a substrate on one hand, and can apply pressure to the substrate on the other hand, so that an elastic porous material coating layer on the coating roller 1 below the substrate is extruded, and then medicament overflows to coat the substrate.

The liquid adding tank 4 is arranged below the coating roller 1, and when the coating roller 1 rotates, the lower part of the elastic porous material coating layer on the coating roller 1 is immersed into the medicament in the liquid adding tank 4.

When in use, the coating roller 1 and the liquid adding groove 4 are arranged below a substrate, the upper pressing roller 2 is arranged above the substrate, the substrate passes through the substrate channel from a conveying device arranged on two sides of the substrate channel, the coating roller 1 sucks the medicament in the liquid adding groove 4 from the lower part in the rolling process, and then when the substrate rolls to the substrate, the medicament can be extruded from the elastic porous material coating layer and coats the substrate due to the fact that the substrate is pressed by the upper pressing roller 2 to press the coating roller 1. Thus, the liquid adding mode is changed from the mode of dropping the medicament into the mode of using the elastic porous material coating layer to contaminate the liquid adding groove 4 below the substrate by the coating roller 1, and the automatic and uniform medicine adding is completed. And because the coating mode of the coating roller 1 is changed, crystallization of the coating roller 1 caused by liquid shortage can not occur. And simultaneously, the mode of adding liquid downwards is changed, so that the film layer process is not influenced even if the edge of the coating roller 1 is abraded. Further, in an embodiment of the present invention, the coating apparatus further includes: and the extrusion roller 3 is arranged on one side of the coating roller 1, wherein the roller surface of the extrusion roller 3 is abutted with the elastic porous material coating layer.

Here, the squeeze roller 3 is disposed at one side of the coating roller 1, the squeeze roller 3 is disposed at a rear side of the coating roller 1 in a direction opposite to a rotation direction of the coating roller 1, specifically, the squeeze roller 3 is disposed at a rear side of the coating roller 1 in the rotation direction of the coating roller 1, and at the same time, a roller surface of the squeeze roller 3 is in contact with the elastic porous material coating layer, and even when the squeeze roller 3 and the coating roller 1 are relatively rotated, the roller surface of the squeeze roller 3 can press the elastic porous material coating layer on the coating roller 1 against each other, thereby completing adjustment of an amount of the absorption liquid of the coating roller 1. Meanwhile, the coating roller 1 is designed to roll below the surface of the substrate, and can be matched with the squeezing roller 3 to discharge redundant liquid, so that the phenomenon of pollution of a non-rolling light receiving surface caused by liquid dripping is avoided.

Further, as shown in fig. 1 and 2, in the embodiment of the present invention, the upper pressure roller 2 is drivingly connected to the first displacement adjusting device, or the coating roller 1 is drivingly connected to the first displacement adjusting device, or both the upper pressure roller 2 and the coating roller 1 are drivingly connected to the first displacement adjusting device.

The squeezing roller 3 is in driving connection with the second displacement adjusting device.

Here, in order to accommodate substrates of different thicknesses, the upper pressure roller 2 and/or the coating roller 1 are connected to the first displacement adjusting means, and the relative position between the upper pressure roller 2 and the coating roller 1 can be adjusted by the first displacement adjusting means.

Specifically, when the upper pressure roller 2 is drivingly connected to a first displacement adjustment device, the application roller 1 is fixed, and the upper pressure roller 2 can be moved by the first displacement adjustment device, thereby changing the position between the upper pressure roller 2 and the application roller 1.

When the application roller 1 is connected to the first displacement adjustment means, the upper pressure roller 2 is fixed and the application roller 1 can be moved by the first displacement adjustment means, thereby changing the position between the upper pressure roller 2 and the application roller 1.

When the upper pressure roller 2 and the coating roller 1 are both in driving connection with the first displacement adjusting device, the upper pressure roller 2 and the coating roller 1 can both be moved by the first displacement adjusting device, so as to change the position between the upper pressure roller 2 and the coating roller 1.

More specifically, the first displacement device includes, but is not limited to, a driving device such as an electric push rod, a mechanical arm, etc., and the first displacement device drives the upper pressure roller 2 and/or the coating roller 1 to move up and down or move along a non-horizontal direction.

In order to facilitate the squeezing roller 3 to squeeze the elastic porous material coating layer, so that the elastic porous material coating layer can more easily adsorb the medicament in the liquid adding tank 4, the coating roller 1 can adjust the relative position with the squeezing roller 3 through the first displacement adjusting device, and can also adjust the relative position with the coating roller 1 through adjusting the position of the squeezing roller 3 connected with the second displacement adjusting device. Wherein the relative positions include the approach and the distance of the coating roll 1 and the squeeze roll 3.

Specifically, the second displacement adjusting device includes, but is not limited to, a driving device such as an electric push rod, a mechanical arm, etc., and the second displacement device drives the squeeze roller 3 to move closer to and away from the coating roller 1.

Further, as shown in fig. 1 and 2, in the embodiment of the present invention, there are more than two coating rollers 1, and the upper press roller 2 is disposed above each coating roller 1.

Here, in the conveying direction of the substrate to be coated, a first group of the coating roller 1 and the upper press roller 2 is used for pre-roll coating, and a second group of the coating roller 1 and the upper press roller 2 is used for repeated coating, so that the liquid coating is ensured to be uniform and free of blind areas.

In practice, when the substrate size is 1200mm wide, the width of the coating roller 1 is designed to be 1130mm, corresponding to the substrate center. At the moment, the 10mm areas on the two edges of the substrate are useless areas, so that the liquid contamination around the edges can be reduced.

Further, as shown in fig. 3, in the embodiment of the present invention, the liquid adding tank includes: the liquid supply groove body 41 is arranged below the coating roller 1, the liquid supply groove body 41 is connected with the storage groove 42, and the storage groove 42 is connected with the liquid distribution groove 43; and the liquid leakage groove body 44 is arranged below the liquid supply groove body 41. The liquid supply groove body 41 is connected with the storage groove 42 through a circulating pipeline 51; the liquid preparation tank 43 is connected with the storage tank 42 through a connecting pipeline, and the liquid preparation tank 43, the storage tank 42 and the circulating pipeline 51 are also connected with a transfusion pipe 52; the storage tank 42 and the leakage tank body 44 are also connected with a liquid discharge pipe 53.

Liquid filters 6 are arranged on the connecting pipe and the liquid supply pipeline of the circulating pipeline 51.

Here, the liquid supply groove 41 is provided with a chemical, the lower portion of the coating roller 1 is provided in the chemical in the coating roller 1, and the liquid supply groove 41 is connected to the storage groove 42 and the liquid distribution groove 43 in order to ensure that the amount of the chemical in the liquid supply groove 41 is kept stable. Further, the liquid in the storage tank 42 can be continuously supplied to the liquid supply tank body 41 below the coating roller 1 through a circulating liquid supply pump, so that the whole system is circulated, continuous and prevented from generating crystallization.

The liquid preparation tank 43 is used for preparing a medicament, and specifically, the liquid preparation tank 43 is mainly a preparation tank body for chemical liquid medicine, and the chemical liquid medicine and the pre-configuration are completed by adding cadmium chloride powder and DI water (i.e., ionized water) and circularly stirring in the liquid preparation tank 43. The liquid storage tank is used for storing prepared medicament, specifically, the prepared solution can be pumped into the liquid storage tank through a supply pump, and the concentration of DI water (namely ionized water) in the liquid storage tank is controlled by controlling the addition of the DI water through a titration detection system in the liquid storage tank.

Specifically, the liquid supply groove body 41 is connected with the storage groove 42 through a circulating pipeline 51, so that the medicament between the liquid supply groove body 41 and the storage groove 42 can flow circularly, and the stability of the medicament dosage in the liquid supply groove body 41 is ensured, so that the coating roller 1 is stable in the immersion amount in the liquid supply groove body 41 every time, the stability of the coating amount of the substrate is ensured, and the coating quality of the substrate is improved. Furthermore, the liquid supply groove body 41 can be provided with overflow holes, so that the liquid level is kept stable. The liquid filter 6 is further arranged on the liquid supply pipeline of the circulating pipeline 51, so that the situation that more impurities enter the liquid supply groove body 41 is avoided.

The infusion tube 52 is mainly used for controlling the concentration of the component content in the liquid supply groove 41, the storage groove 42 and the liquid preparation groove 43, specifically, the liquid conveyed in the infusion tube 52 may be DI water (i.e., ionized water), and the connection between the infusion tube 52 and the liquid supply pipe of the circulation pipe 51 is located behind the liquid filter 6 along the supply direction.

The liquid leakage groove body 44 is further arranged below the liquid supply groove body 41, and the liquid leakage groove body 44 is used for collecting liquid overflowing from the liquid supply groove body 41.

Further, as shown in fig. 4, in the embodiment of the present invention, the coating apparatus further includes a flipping table system, the flipping table system includes an upper conveying belt roller 71 and a lower conveying belt roller 72, a substrate conveying channel is disposed between the upper conveying belt roller 71 and the lower conveying belt roller 72, the substrate conveying channel is communicated with the substrate channel, a clamping apparatus 73 for controlling the size of the substrate conveying channel is further disposed between the upper conveying belt roller 71 and the lower conveying belt roller 72, the clamping apparatus 73 is further connected to a flipping motor 74, and the flipping motor 74 is mounted on the base.

Here, the upper conveying belt roller 71 and the lower conveying belt roller 72 constitute a conveying belt roller structure mainly for conveying a nip action. When the substrate is conveyed, the left side and the right side of the substrate are contacted with each other at a distance of less than 10mm, and the substrate is conveyed to a preset position; the clamping device 73 is matched to fixedly clamp two sides of the substrate, the overturning motor 74 is used for reversing, and after the overturning is finished, the clamping device 73 is loosened to carry out conveying.

Furthermore, the conveying rollers on the upper conveying leather roller 71 and the conveying rollers on the lower conveying leather roller 72 play a role in conveying and supporting. The transmission roller only contacts three points of the substrate and is consistent with a contact point during film coating production. Avoiding additional contact.

Further, as shown in fig. 5, in the embodiment of the present invention, the coating device further includes a protection cavity 8, the coating roller 1, the upper pressing roller 2, and the liquid feeding groove 4 are all disposed in the protection cavity 8, and a negative pressure air exhaust device 81 is disposed at the top of the protection cavity 8.

Here, the protective chamber 8 is used to protect the production environment and reduce the volatilization of toxic gases. Wherein, the cavity wall of the protection cavity 8 is made of visible transparent organic glass. And a negative pressure air exhaust device 81 is arranged at the top of the protection cavity 8. Meanwhile, the installation and maintenance of doors and windows are convenient to detect and maintain.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.