CN215695318U

CN215695318U - Coating device

Info

Publication number: CN215695318U
Application number: CN202122417594.4U
Authority: CN
Inventors: 夏双印
Original assignee: Younai Industry Shanghai Co ltd
Current assignee: Younai Industry Shanghai Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-02-01
Anticipated expiration: 2031-10-08

Abstract

The application discloses coating device, including frame, first coating roll, second coating roll and transfer roller the both ends of first coating roll are connected with first regulating plate, first regulating plate rotates to be connected in the frame the both ends that shift the roller are connected with the second regulating plate, the second regulating plate rotates to be connected on first regulating plate, first cylinder is connected to first regulating plate, the second cylinder is connected to the second regulating plate. The first adjusting plate can be driven by a first air cylinder to rotate relative to the frame to drive the first coating roller to be close to or far away from the second coating roller so as to adjust the gap width between the first coating roller and the second coating roller, so that the coating device is suitable for substrates with different thicknesses; the second adjusting plate can be driven by the second air cylinder to rotate relative to the first adjusting plate, the transfer roller is driven to be close to or far away from the first coating roller, so that the distance between the transfer roller and the first coating roller is adjusted, and the coating amount is convenient to adjust.

Description

Coating device

Technical Field

The present application relates to a coating apparatus.

Background

As is well known, a coating apparatus is mainly used for producing a substrate such as a film or paper wound around a roll by a surface coating process, and the coating apparatus can apply a layer of coating liquid having a specific function to the wound substrate so as to provide the substrate with the specific function.

When the existing coating device is used for coating operation, the coating liquid is coated on a substrate conveyed to a gap between two coating rollers through two coating rollers, and the coating liquid is transferred to the surface of one coating roller through a transfer roller, however, because the distance between the transfer roller and the coating roller and the width of the gap between the two coating rollers are fixed in the coating process, when substrates with different thicknesses are required to be coated, the distance between the two coating rollers cannot be adjusted, so that the applicability of the coating device is limited; when the coating amount needs to be adjusted, the adjustment is usually performed by adjusting the concentration or flow rate of the coating liquid, which tends to cause problems such as uneven coating of the coating liquid and deterioration in the overall quality of the coated substrate.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present application provides a coating device, in which the distance between the transfer roll and the coating roll and the width of the gap between the two coating rolls are both adjustable, the coating amount is convenient to adjust, and the coating device is applicable to substrates with different thicknesses.

The technical scheme adopted by the application is as follows: the utility model provides a coating device, includes the frame install first coating roll and second coating roll side by side in the frame one side that second coating roll was kept away from to first coating roll is provided with the transfer roller, and the coating liquid passes through the transfer roller shifts to on the surface of first coating roll, the substrate passes the coating of coating liquid is accomplished in the clearance between first coating roll and the second coating roll first coating roll's both ends are connected with first regulating plate, first regulating plate rotates to be connected in the frame the both ends of transferring the roll are connected with the second regulating plate, the second regulating plate rotates to be connected in on the first regulating plate, first cylinder is connected to first regulating plate, the second cylinder is connected to the second regulating plate.

As a modification of the above, the first regulating plate includes an upper side plate and a lower side plate which are vertically disposed, the first coating roller is attached to the upper side plate, and the first cylinder is attached to the lower side plate at a position obliquely below the first coating roller.

As an improvement to the above, the middle portion of the second regulating plate is rotatably connected to the first regulating plate, the transfer roller is connected to a first side of the second regulating plate, and the second cylinder is connected to a second side of the second regulating plate opposite to the first side.

As an improvement to the above, a first pressure sensor is connected between the first adjusting plate and the frame.

As an improvement to the above, a second pressure sensor is connected between the second regulating plate and the first regulating plate.

As an improvement to the above scheme, the transfer roller is connected to a cavity, the cavity is used for accommodating the coating liquid, the cavity has an open end, the open end is in sealing fit with the outer surface of the transfer roller, and the coating liquid in the cavity is coated on the outer surface of the transfer roller through the open end.

As an improvement to the above scheme, the first coating roller is an anilox roller, and the second coating roller is a rubber roller.

As an improvement to the above, a first guide roller set and a second guide roller set are mounted on the frame for guiding a substrate to be coated or a substrate coated with a coating liquid.

Different from the prior art, the coating device provided by the application can drive the first adjusting plate to rotate relative to the frame through the first air cylinder, so as to drive the first coating roller to be close to or far away from the second coating roller, so that the gap width between the first coating roller and the second coating roller can be adjusted, and the coating device is suitable for substrates with different thicknesses; the second adjusting plate can be driven by the second air cylinder to rotate relative to the first adjusting plate, the transfer roller is driven to be close to or far away from the first coating roller, so that the distance between the transfer roller and the first coating roller is adjusted, and the coating amount is convenient to adjust.

Drawings

FIG. 1 is a side view of a coating apparatus in an embodiment of the present application;

FIG. 2 is a partial cutaway view of FIG. 1;

FIG. 3 is a schematic side view of a coating apparatus according to an embodiment of the present application;

FIG. 4 is a schematic side view of a coating apparatus according to another embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "longitudinal", "lateral", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but 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 thus, should not be taken as limiting the present application. 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 application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The application provides a coating device for thin substrate such as the non-woven fabrics of winding on the roller, paper carries out the surface coating, and this coating device can be to the substrate coating liquid of the specific function of one deck of coiling to make this substrate possess specific function, the coating liquid includes but not limited to softener, bacteriostatic agent, water repellent etc..

Referring to fig. 1, fig. 1 shows a side view of a coating apparatus provided in an embodiment of the present application, the coating apparatus includes a frame 10, a first coating roller 21 and a second coating roller 22 are mounted on the frame 10 side by side, and a transfer roller 30 is disposed on a side of the first coating roller 21 away from the second coating roller 22. The coating liquid is transferred onto the outer surface of the first coating roll 21 by the transfer roll 30, and the substrate passes through the gap between the first coating roll 21 and the second coating roll 22 to complete the coating of the coating liquid.

It is understood that the substrate is unwound from a roll-shaped substrate and conveyed through the gap between the first coating roller 21 and the second coating roller 22, and the substrate coated with the coating liquid is conveyed and wound into a roll shape.

First adjusting plates 41 are connected to both ends of the first coating roll 21, the first adjusting plates 41 are rotatably connected to the frame 10, second adjusting plates 51 are connected to both ends of the transfer roll 30, the second adjusting plates 51 are rotatably connected to the first adjusting plates 41, the first adjusting plates 41 are connected to first air cylinders 42, and the second adjusting plates 51 are connected to second air cylinders 52.

Referring to fig. 2, fig. 2 shows a partially cut-away structure of the coating apparatus in fig. 1, in an embodiment, the transfer roller 30 is connected to a cavity 31, the cavity 31 is used for accommodating a coating liquid, the cavity 31 has an open end, the open end is in sealing fit with an outer surface of the transfer roller 30, the coating liquid in the cavity 31 is coated on the outer surface of the transfer roller 30 through the open end, and then is transferred onto the outer surface of the first coating roller 21.

Further, the first coating roller 21 is an anilox roller, and the second coating roller 22 is a rubber roller. The first coating roll 21 is made of hard materials such as metal, the second coating roll 22 is made of soft materials such as rubber, when coating is carried out, coating liquid is distributed on the outer surface of the first coating roll 21, a base material conveyed to a gap between the first coating roll 21 and the second coating roll 22 is clamped between an anilox roll and a rubber roll, and the coating liquid distributed on the outer surface of the first coating roll 21 is continuously coated on the surface of the base material through continuous rotation of the anilox roll and the rubber roll and pressing of the base material.

The side view structure of fig. 1 and 2 shows only the structure of the first regulating plate 41, the first air cylinder 42, the second regulating plate 51 and the second air cylinder 52 provided at one end of the first coating roll 21 and the transfer roll 30, and it can be understood that the other end provided at the opposite end of the first coating roll 21 and the transfer roll 30 has the identical structure.

The coating device can drive the first adjusting plate 41 to rotate relative to the frame 10 through the first air cylinder 42, drive the first coating roller 21 to be close to or far away from the second coating roller 22, so as to adjust the gap width between the first coating roller 21 and the second coating roller 22, and enable the coating device to be suitable for substrates with different thicknesses; the second adjusting plate 51 can be driven by the second air cylinder 52 to rotate relative to the first adjusting plate 41, so as to drive the transfer roller 30 to be close to or far away from the first coating roller 21, so as to adjust the distance between the transfer roller 30 and the first coating roller 21, and facilitate the adjustment of the coating amount.

It can be understood that the two first air cylinders 42 provided at the two ends of the first coating roller 21 operate synchronously to drive the two first adjusting plates 41 to rotate synchronously with respect to the frame 10, so as to drive the first coating roller 21 from the two ends to approach or separate from the second coating roller 22; the two second air cylinders 52 provided at both ends of the transfer roller 30 are operated in synchronization, and the two second regulating plates 51 are driven to rotate in synchronization with respect to the first regulating plate 41, thereby bringing the transfer roller 30 closer to or away from the first coating roller 21 from both ends.

Further, in one embodiment, the first adjusting plate 41 includes an upper side plate 411 and a lower side plate 412 which are vertically disposed, a middle portion of the first adjusting plate 41 is rotatably connected to the frame 10, the first coating roller 21 is connected to the upper side plate 411, and the first cylinder 42 is connected to the lower side plate 412 at a position obliquely below the first coating roller 21.

Specifically, when the movable end of the first air cylinder 42 moves upward, the first adjusting plate 41 rotates clockwise relative to the frame 10 to drive the first coating roller 21 to approach the second coating roller 22, so as to reduce the gap width between the first coating roller 21 and the second coating roller 22; when the movable end of the first air cylinder 42 moves downwards, the first adjusting plate 41 rotates counterclockwise relative to the frame 10 to drive the first coating roller 21 away from the second coating roller 22, so as to increase the gap width between the first coating roller 21 and the second coating roller 22.

In practical application, the gap width between the first coating roller 21 and the second coating roller 22 can be adjusted according to the thickness of the substrate.

Further, a first pressure sensor 61 is connected between the first adjusting plate 41 and the frame 10, and the first pressure sensor 61 monitors the gap width between the first coating roller 21 and the second coating roller 22 by sensing the pressure value applied to the first adjusting plate 41 by the first air cylinder 42.

It can be understood that when the first regulating plate 41 rotates relative to the frame 10, the second regulating plate 51 connected to the first regulating plate 41 and the transfer roller 30 connected to the second regulating plate 51 are driven to rotate synchronously, so that the transfer roller 30 is fixed relative to the first coating roller 21 when the gap width between the first coating roller 21 and the second coating roller 22 is adjusted.

Further, the middle portion of the second adjusting plate 51 is rotatably connected to the first adjusting plate 41, the transfer roller 30 is connected to a first side of the second adjusting plate 51, and the second cylinder 52 is connected to a second side of the second adjusting plate 51 opposite to the first side.

Specifically, when the movable end of the second air cylinder 52 moves upward, the second adjusting plate 51 rotates clockwise relative to the first adjusting plate 41 to drive the transfer roller 30 to approach the first coating roller 21, so as to reduce the distance between the transfer roller 30 and the first coating roller 21 and increase the coating amount; when the movable end of the second air cylinder 52 moves downwards, the second adjusting plate 51 rotates counterclockwise relative to the first adjusting plate 41, and the transfer roller 30 is driven to move away from the first coating roller 21, so that the distance between the transfer roller 30 and the first coating roller 21 is increased, and the coating amount is reduced.

In practical applications, the distance between the transfer roll 30 and the first coating roll 21 can be adjusted adaptively according to the coating amount of the substrate.

Further, a second pressure sensor 62 is connected between the second regulating plate 51 and the first regulating plate 41, and the second pressure sensor 62 monitors the distance between the transfer roller 30 and the first coating roller 21 by sensing the pressure value applied to the second regulating plate 51 by the second air cylinder 52.

Further, in one embodiment, a first guide roller set 11 and a second guide roller set 12 are installed on the frame 10, and the first guide roller set 11 and the second guide roller set 12 can guide the substrate coated with the coating liquid to different directions, or guide the substrate to be coated from different directions to between the first coating roller 21 and the second coating roller 22, thereby improving the applicability of the coating device.

Referring to fig. 3 and 4 in combination, fig. 3 shows a side view structure of the coating apparatus in one embodiment of the present invention, in which the substrate 100 coated with the coating liquid is guided forward by the first guide roller set 11, and fig. 4 shows a side view structure of the coating apparatus in another embodiment of the present invention, in which the substrate 100 coated with the coating liquid is guided backward by the second guide roller set 12.

In other embodiments, the substrate to be coated from the front may be guided to between the first coating roll 21 and the second coating roll 22 by the first guide roll group 11 to be coated, or the substrate to be coated from the rear may be guided to between the first coating roll 21 and the second coating roll 22 by the second guide roll group 12 to be coated.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A coating device comprises a rack, wherein a first coating roller and a second coating roller are mounted on the rack side by side, a transfer roller is arranged on one side, away from the second coating roller, of the first coating roller, coating liquid is transferred to the outer surface of the first coating roller through the transfer roller, a substrate passes through a gap between the first coating roller and the second coating roller to complete coating of the coating liquid, and the coating device is characterized in that two end parts of the first coating roller are connected with first adjusting plates, the first adjusting plates are rotatably connected onto the rack, two ends of the transfer roller are connected with second adjusting plates, the second adjusting plates are rotatably connected onto the first adjusting plates, the first adjusting plates are connected with a first air cylinder, and the second adjusting plates are connected with a second air cylinder.

2. The coating apparatus as claimed in claim 1, wherein the first regulating plate includes an upper side plate and a lower side plate which are vertically disposed, the first coating roller is coupled to the upper side plate, and the first cylinder is coupled to the lower side plate at a position obliquely below the first coating roller.

3. The coating apparatus as claimed in claim 1, wherein a middle portion of the second regulating plate is rotatably coupled to the first regulating plate, the transfer roller is coupled to a first side of the second regulating plate, and the second air cylinder is coupled to a second side of the second regulating plate opposite to the first side.

4. The coating apparatus of claim 1 wherein a first pressure sensor is connected between the first conditioning plate and the frame.

5. The coating apparatus of claim 1, wherein a second pressure sensor is connected between the second regulation plate and the first regulation plate.

6. A coating apparatus as in claim 1, wherein the transfer roller is coupled to a chamber for receiving the coating fluid, the chamber having an open end in sealing engagement with the outer surface of the transfer roller, the coating fluid in the chamber being applied to the outer surface of the transfer roller through the open end.

7. A coating apparatus as in claim 1, wherein the first coating roll is an anilox roll and the second coating roll is a glue roll.

8. A coating apparatus according to claim 1, wherein a first guide roller group and a second guide roller group for guiding a substrate to be coated or a substrate after coating of the coating liquid are mounted on the frame.