KR102007653B1 - Coating width controllable slot die device - Google Patents

Abstract

Slot die device according to an embodiment of the present invention is the main body portion, the coating liquid supply line provided inside the main body portion, the cavity provided across the left and right of the main body portion and receiving the coating liquid from the coating liquid supply line, and And a slot provided inside the main body and movably installed in the main body to adjust a width of ink discharged through the slot and forming a slot for forming an external discharge path of the coating liquid contained in the cavity.

Description

Coating width controllable slot die device

The present invention relates to an electronic printing apparatus, and more particularly, to a slot die device capable of adjusting the coating width.

In order to laminate another material layer on one material layer (substrate), the material layer forming composition is often applied and laminated coated. In general, the coating liquid is used by dissolving the material layer forming composition in a solvent or a dispersion medium in a fluid form such as a solution or slurry.

A die coater is a typical equipment for applying a relatively thin coating liquid to a large area. Among them, a slot die apparatus is a device for forming a material layer by coating a coating liquid on a substrate with a predetermined width.

The slot die device has a structure in which the coating liquid is discharged into the gap of the tip divided into two sides of the slot die device as the ink comes from the pen tip. In order to coat the coating liquid on the substrate using the slot die apparatus, the slot die apparatus itself moves or the substrate moves.

The coating method using the slot die device is superior to other coating methods in terms of productivity and reproducibility, and thus has been widely used in the flat panel display field and the secondary battery field, and is particularly used for coating functional surface treatment films in the display field.

1 is a perspective view of a conventional slot die apparatus. Referring to Figure 1, the slot die device is formed in any one or both of the slot die device main body portion (1, 2, 3) and the inside of the die body portion and the cavity 12 for distributing the coating liquid in the width direction and the It comprises a coating liquid supply line 15 for injecting a coating liquid into the cavity and a slot 13 connected to the cavity 12 to coat the coating liquid on the substrate.

On the other hand, the slot die device main body portion (1, 2, 3) is a shim type and upper body consisting of an upper body portion (1), a lower body portion (2) and a shim (3) for maintaining a slit gap It is divided into the shimless type in which the shim 3 is integrated in either the part 1 or the lower main body 2. The size of the slip gap is usually several tens to hundreds of micrometers. In the case of the shim type, the thickness of the slit gap and the discharge port ( 14) is configured to adjust the size.

The coating liquid supply line 15 is connected to the central portion of the cavity 12 and used as a passage for supplying the coating liquid. Then, the coating liquid injected into the coating liquid injection hole 11 is injected into the cavity 12 through the coating liquid supply line 15.

The cavity 12 is connected to the coating liquid supply line 15 and filled with the coating liquid injected from the coating liquid supply line 15. The coating liquid thus filled is discharged to the discharge port 14 through the thin slot portion 13, and the discharged coating liquid is coated on the substrate.

That is, the slot 13 serves as a passage when the coating liquid supplied to the cavity is coated on the substrate through the discharge port 14.

By the way, the conventional slot die device described above is determined according to the shape of the slot portion and the shim predetermined coating width, it was impossible to control the coating width or coating thickness. That is, in order to control the coating width of the coating liquid, there is a problem in that it is not economical because a separate slot die device must be used.

The present invention is to solve the above problems, and an object thereof is to provide a slot die device configured to easily adjust the coating width or coating thickness in a simple operation.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, the main body portion, the coating liquid supply line provided inside the main body portion, the cavity provided across the left and right of the main body portion receiving the coating liquid from the coating liquid supply line, and the inside of the main body portion Provided is a slot die device having a coating width control is provided comprising a slot portion constituting an external discharge path of the coating liquid contained in the cavity and a shim movably installed in the body portion to adjust the width of the ink discharged through the slot portion do.

In addition, the main body is provided with an installation groove in which the shim is installed, and the shim may include an installation portion installed in the installation groove and a closing portion for closing the cover to cover a predetermined area of the cavity.

In addition, the main body portion is provided with the installation grooves in both longitudinal directions, the installation portion may be installed to be movable along the installation grooves.

In addition, the installation portion of the shim is formed having a length corresponding to the length of the installation groove, the closing portion is provided on both sides of the installation portion, the lower portion of each installation portion may be further provided with a thickness portion.

In addition, a plurality of shims having different sizes of the closures may be provided, and each shim may further include a marking unit indicating the size of the closure.

In addition, a plurality of shims having different sizes of the closures may be provided, and each shim may have a different color to indicate the size of the closure.

In addition, the shim may be formed such that a plurality of unit shims can be stacked on each other.

The unit core may include a first unit core having a first installation unit and a first closure unit, and a second installation unit installed in the installation groove and inserted into the first installation unit and the first closure unit. It may include a second unit shim having a closing portion.

According to the slot die device that can adjust the coating width according to an embodiment of the present invention configured as described above, while supporting the slot die between the upper body portion and the lower body portion constituting the slot die device and at the same time both the body portion By applying one or more movable shims, it is possible to adjust the right and left or top and bottom coating widths.

In addition, by applying one of the various types of shim brings about the effect that can be operated smoothly according to the situation.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a conventional general slot die apparatus;
2 is a side cross-sectional view of a slot die apparatus according to an embodiment of the present invention;
3 is a projection plan view schematically showing a slot die device according to an embodiment of the present invention;
4 is a view showing one form of a shim applied to a slot die apparatus according to an embodiment of the present invention;
5 is a block diagram showing a connection relationship between components constituting a slot die device according to an embodiment of the present invention;
6 and 7 are views showing another form of the shim applied to the slot die device according to an embodiment of the present invention; And
8 is a view showing another form of shim applied to the slot die device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, but the scope of the present invention is not limited to the scope of the accompanying drawings that will be readily available to those of ordinary skill in the art. You will know. First, with reference to the accompanying drawings will be described a structure according to a preferred embodiment of the present invention.

FIG. 2 is a side cross-sectional view of a slot die apparatus according to an embodiment of the present invention, and FIG. 3 is a schematic plan view illustrating the arrangement of major components of the slot die apparatus according to an embodiment of the present invention. .

As shown, the slot die apparatus according to an embodiment of the present invention includes a main body portion 100, the coating liquid supply line 115, the cavity 120 and the slot portion 125.

The main body 100 is a component constituting the appearance of the slot die apparatus according to the present embodiment, and consists of an upper main body 110 and a lower main body 130.

In addition, support parts 171 and 172 are provided at both sides of the main body part 100, and the upper body part 110 and the lower body part 130 are firmly coupled to the support parts 171 and 172 by bolts or the like. It will become a form. At this time, it is preferable that the inside of the support parts 171 and 172 is coated with Viton or Teflon so that the sealing state with the main body part 100 is made more robust and corrosion resistance and chemical resistance are enhanced.

In addition, the coating liquid supply line 115 is connected to the cavity 120 provided inside the main body 100 to supply the coating liquid to the cavity 120, and one or more coating liquids may be provided.

In addition, the cavity 120 is provided in the body portion 100 to form a predetermined space portion to accommodate the coating liquid along the left and right longitudinal direction of the body portion 100. At this time, the cavity 120 is preferably provided in the upper body portion (110).

In this case, the coating liquid contained in the cavity 120 is supplied to the outside by a separate supply pump, and one of various known forms applied to the existing slot die apparatus may be applied.

In addition, the slot part 125 is provided in the main body part 100 to form an external discharge path of the coating liquid accommodated in the cavity 120, and is located between the upper main body part 110 and the lower main body part 130. .

On the other hand, it is preferable that the reinforcement parts 210 and 230 are provided in the body part 100 in contact with the coating liquid to the side where the slot part 125 is located. That is, as shown, the reinforcement parts 210 and 230 are provided with an upper reinforcement part 210 and a lower reinforcement part 230 in the upper body part 110 and the lower body part 130, respectively.

Here, the reinforcing parts 210 and 230 may be applied to one of the Tungsten Carbide composite material, ceramic, ceramic composite material or alloy material.

In addition, the reinforcement parts 210 and 230 may be formed by coating the upper main body 110 and the lower main body 130, and include TiN coating, TiC coating, Al 2 O 3 coating, diamond coating, or DLC (Diamond). -Like-Carbon) coating, one of the cemented carbide + DLC coating can be formed by applying.

In particular, the upper reinforcing portion 210 is formed to extend to one side of the cavity 120, the lower reinforcing portion 230 is formed to extend to the position of the lower region of the cavity 120, the storage and supply of the coating liquid It is desirable to bring structural stability even when

Meanwhile, the shim 300 is provided between the upper main body 110 and the lower main body 130 in the main body 100. In this embodiment, the shim 300 is applied between the upper body portion 110 and the lower body portion 130 to adjust the vertical height of the slot portion 125 or the left and right width to which the coating liquid is applied.

4 is a view showing one form of a shim applied to a slot die apparatus according to an embodiment of the present invention. Referring to FIGS. 2 to 4, the upper main body 110 of the main body 100 is The installation groove 140 is provided. In addition, the shim 300 is provided with an installation unit 310 to be installed in the installation groove 140.

As shown, the installation groove 140 is made of a semi-circular, the installation portion 310 may also be made of a semi-circle corresponding to the installation groove 140.

In addition, the shim 300 is formed integrally with the installation portion 310 to close a predetermined lower region of the cavity 120, and has a closed portion 320 having a predetermined width and thickness and having a plate shape. It is provided.

And, the installation groove 140 is formed along the left and right longitudinal direction of the main body portion 100, the installation portion 310 is installed in the installation groove portion 140 and then the longitudinal direction of the installation groove portion 140 Therefore, it can be installed to be movable.

When the shim 300 formed as described above is applied to both sides of the installation groove 140 of the main body 100, a partial region of the cavity 120 is closed by the closing part 320, as shown in FIG. 3. The coating process is performed only as much as the width L formed between the shim 300 and the shim 300. Accordingly, the left and right coating widths can be adjusted while moving the shim 300.

In addition, by using the thickness of the closing portion 320, by adjusting the width formed between the upper body portion 110 and the lower body portion 130 it is also possible to control the thickness of the coating liquid.

Accordingly, by preparing a plurality of shim 300 having a closed portion 320 of various sizes and thicknesses, it is possible to apply the selected shim according to the coating width, in this case grasp the shim 300 to be selected by the operator To facilitate this, a separate marking part may be applied to the shim 300 in advance, or the color of the shim itself may be differently applied to each shim.

Although not shown in detail, it may be more preferable that a leader line indicating the position of the shim 300 to be installed corresponding to the coating width is applied to the inside of the main body 100.

5 is a block diagram illustrating a connection relationship between components constituting a slot die device according to an embodiment of the present invention.

Slot die device according to an embodiment of the present invention is provided with a control unit 400 provided with a separate microcomputer, the coating liquid supply pump 510 and the web moving motor 520 to be electrically connected to the control unit 400. To be applied.

In addition, after the selected shim 300 is input to the controller 400, the coating liquid supply pump 510 and the web moving motor 520 are set, that is, the pump pressure and the motor operating speed are set in correspondence to the selected shim. It can be operated in a state that allows for a more accurate and efficient coating operation.

6 and 7 are views showing another form of the shim applied to the slot die device according to an embodiment of the present invention.

As shown above, the shim applied to the slot die apparatus according to the present embodiment may form a plurality of unit shims 301 and 302 are stacked and combined.

That is, the first unit shim 301 including the first installation portion 311 and the first closing portion 321 and the installation groove 140 of the main body portion 100 is installed in the first installation portion ( Each of the unit cores 301 includes a second unit core 302 having a second installation portion 312 into which the 311 is inserted and a second closure portion 322 stacked with the first closure portion 321. , 302 is used only in accordance with the situation, or as shown in Figure 7, it is applied to the main body portion 100 in a stacked form to enable the vertical height adjustment of the slot portion 120.

In FIG. 6 and FIG. 7, two unit seams are illustrated, but three or more unit seams may be applied.

Meanwhile, the shim 300 and the unit shims 301 and 302 may also be coated with one of TiN coating, TiC coating, Al2O3 coating, diamond coating, or DLC (Diamond-Like-Carbon) coating to provide durability and chemical resistance. It would be desirable to allow for augmentation.

8 is a view showing another form of shim applied to the slot die device according to an embodiment of the present invention.

The shim shown in FIG. 8 uses one shim 303 to adjust both the left and right widths of the coating width and the top and bottom heights of the slots.

To this end, another form of the shim 303 is to be provided across the main body portion both side installation portion 313 and the closing portion 323 is provided below both ends of the installation portion 313, the closure The lower portion 323 is configured such that the thickness portion 333 is applied.

When the shim 303 formed as described above is installed in the main body 100, the upper and lower heights of the slots are formed by the closure part 323 and the thickness part 333, and spaces spaced apart from both sides of the thickness part 333 are provided. Through the left and right width of the coating can be adjusted.

As described above, the preferred embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

100: main body 110: upper body
120: cavity 125: slot
130: lower body 140: mounting groove
210: upper reinforcing portion 230: lower reinforcing portion
300: shim 301, 302: unit shim
310: mounting portion 320: closing portion

Claims (8)

A main body having an upper main body and a lower main body; A coating liquid supply line provided in the main body; A cavity which traverses the main body left and right and is provided inside the main body and receives the coating liquid from the coating liquid supply line; A slot part disposed between the upper main body part and the lower main body part and forming an external discharge path of the coating liquid accommodated in the cavity; And a shim installed to be movable between the upper body portion and the lower body portion so as to adjust the vertical height of the slot portion or the left and right widths to which the coating liquid is applied.
The upper body portion is formed with a semi-circular installation grooves along the longitudinal direction of both sides thereof,
The shim includes a semicircular mounting portion inserted into the mounting groove, and a plate-shaped closing portion integrally formed with the mounting portion for partially closing the lower region of the cavity.
The shim is a slot die device capable of adjusting the coating width, characterized in that installed on both sides of the semi-circular installation groove. The method of claim 1,
The shim is a slot die device capable of adjusting the coating width, characterized in that the plurality of unit cores are laminated. The method of claim 2,
The unit core is,
A first unit core having a first installation portion and a first closure portion,
Coating width adjustment is characterized in that it is installed in the installation groove portion of the upper main body portion and has a second unit core having a second installation portion is inserted into the first installation portion and the second closure portion laminated to the first closure portion. Available slot die unit. A main body having an upper main body and a lower main body; A coating liquid supply line provided in the main body; A cavity which traverses the main body left and right and is provided inside the main body and receives the coating liquid from the coating liquid supply line; A slot part disposed between the upper main body part and the lower main body part and forming an external discharge path of the coating liquid accommodated in the cavity; And a shim installed to be movable between the upper body portion and the lower body portion so as to adjust the vertical height of the slot portion or the left and right widths to which the coating liquid is applied.
The upper body portion is formed with a semi-circular installation grooves along the longitudinal direction of both sides thereof,
The shim includes a semicircular mounting portion inserted into the mounting groove, and a plate-shaped closing portion integrally formed with the mounting portion for partially closing the lower region of the cavity.
The planted,
One installation unit is installed across both sides of the upper body; And
It includes; a pair of closing portions installed on both ends of the installation portion lower side,
The slot die device of the coating width is adjustable, characterized in that the lower portion further comprises a thickness portion. The method according to any one of claims 1 to 4,
Is provided with a plurality of shims formed differently in size of the closure,
Wherein each shim is a slot die device that can be adjusted coating width, characterized in that further provided with a marking for instructing the size of the closure portion.
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