CN107004621B - Nozzle lip cleaning device and slit type smearing device thereof - Google Patents

Abstract

The present invention provides a nozzle lip cleaning device and a slit-type coating device using the nozzle lip cleaning device, wherein the nozzle lip cleaning device comprises: a cleaning device main body; a blade supporting unit having a A first blade support member; a blade unit having a first blade, the rear end of the first blade is combined with the first blade support member, and the front end contacts the surface of the nozzle mouth to scrape off the spray liquid The chemical liquid adhered to the surface of the nozzle mouth; the angle adjustment unit has a first angle adjustment member, the first angle adjustment member is arranged in the cleaning device main body, and moves the first blade support member, and adjusts all the the relative position between the front end of the first blade and the surface of the nozzle mouth; the support pin unit has a first support pin member, and the first support pin member is arranged between the first blade support member and the first support pin. Between one blade and the center of rotation in the width direction of the first blade, when the first blade support member moves, the front end of the first blade is brought into parallel contact with the surface of the nozzle mouth.

Description

Nozzle mouth cleaning device and its slit type applicator

technical field

The present invention relates to a nozzle lip cleaning device and a slit-type applicator using the nozzle lip cleaning device, and more specifically, the nozzle lip cleaning device and the slit-type application device using the nozzle lip cleaning device, The blade for cleaning the nozzle mouth is accurately and quickly arranged on the surface of the nozzle mouth, and at the same time, the cleaning power of the nozzle mouth can be improved.

Background technique

The manufacturing process of the substrate for a flat panel display element includes a coating process of applying various chemical liquids to the surface of the substrate, and the coating device used for the coating process mainly uses a slit-type coating device with a slit nozzle.

The slit-type application device sprays the chemical solution through the slit-type nozzle and moves instantaneously from one side of the substrate to the other side, thereby applying the chemical solution to the substrate surface.

The slit type applicator should evenly apply the liquid medicine on the substrate surface, for this reason, it is necessary to clear the nozzle mouth of the slit nozzle ( Nozzle lip) attached to the liquid medicine.

In order to remove the chemical liquid adhering to the nozzle orifice, the slit type applicator is provided with a nozzle orifice cleaning device, and the nozzle orifice cleaning device has a plurality of blades for scraping off the nozzle orifice. The liquid medicine in the mouth of the spray mouth.

At this time, the front end of the blade should be in parallel contact with the surface of the spout mouth, but in the prior art, it is necessary to set the front end of the blade in parallel with the surface of the spout mouth Put a lot of time and effort into the problem.

In addition, when the spray lip cleaning device moves at a high speed and scrapes off the chemical liquid, the chemical liquid separated from the spray mouth by a certain blade moves with the blade and affects other blades, so there is a problem. The problem of unqualified cleaning.

SUMMARY OF THE INVENTION

(issue to be solved)

The technical problem to be solved by the present invention is to provide the following nozzle lip cleaning device and its slit type applicator: the front end of the blade and the surface of the nozzle lip can be brought into parallel contact with each other quickly and accurately, and the productivity of the device can be improved. utilization.

Another technical problem to be solved by the present invention is to provide the following nozzle lip cleaning device and its slit type applicator, which can improve the cleaning power of the nozzle lip cleaning device, thereby reducing product production time.

Another technical problem to be solved by the present invention is to provide the following nozzle lip cleaning device and its slit type applicator: the liquid medicine separated from the nozzle lip surface does not pass through a certain blade to affect other blades, thereby preventing cleaning. Failed.

(means to solve the problem)

In order to solve the above-mentioned problems, the present invention provides a nozzle lip cleaning device, comprising: a cleaning device main body; a blade supporting unit having a first blade supporting member coupled to the cleaning device main body; and a blade unit having a first blade supporting member Blade, the rear end of the first blade is combined with the first blade support member, and the front end is in contact with the surface of the nozzle mouth, so as to scrape off the liquid medicine attached to the surface of the nozzle mouth after spraying the liquid medicine; angle adjustment A unit including a first angle adjustment member that is disposed in the cleaning apparatus body and that moves the first blade support member and adjusts the front end of the first blade and the nozzle mouth at the same time Relative position between surfaces; a support pin unit having a first support pin member that is arranged between the first blade support member and the first blade and becomes the first blade The center of rotation in the width direction of the first blade support member is moved so that the front end of the first blade is in parallel contact with the surface of the nozzle opening.

The first blade includes: a blade fastening part coupled to the first blade support member; and a blade head extending from the blade fastening part. The first support pin part may include: a pin fastening part coupled to the first blade support part; and a pin support part extending from the pin fastening part while supporting a partial area of the blade head.

The nozzle lip cleaning device further includes a coupling unit, the coupling unit has a first coupling part, and the first coupling part is used for coupling the first blade and the first support pin part to the In the first blade support member, the width of the pin support portion has a value smaller than the width of the blade head.

A fastening position variable region for changing the coupling position of the first support pin member coupled to the first blade supporting member may be formed in the pin fastening portion.

The width of the pin supporting portion is smaller than the width of the pin fastening portion, and the pin supporting portion may be formed to extend from a central region in the width direction of the pin fastening portion.

The length of the first support pin member is smaller than the length of the first blade, and the strength of the first support pin member may have a value greater than that of the first blade.

In order to prevent the liquid medicine separated from the nozzle surface from moving to the blade fastening portion through the blade head, the blade head has a width larger than that of the blade fastening portion while being able to move toward the blade The lower direction of the fastening portion is formed in a stepped shape.

At least a portion of the lower region of the blade head may have a chamfered shape to prevent interference with other adjacent blades.

The blade head may include: a head rear part extending from the blade fastening part; a surface extending from the head rear part and being inclined to form a surface so as to be thinner toward the front end of the blade head Front of blade.

In addition, as another embodiment of the first blade, the first blade may include: a blade fastening part coupled to the first blade support member; and a blade head extending from the blade fastening part . The blade head may include: a rear part of the head extending from the blade fastening part; a front part of the head extending from the rear part of the head; a head protrusion extending from the rear part of the head and The boundary area of the front portion of the head protrudes to the surface of the blade head.

The first angle adjusting member is arranged behind the first blade support member, and moves the first blade support member while pressing the rear face of the first blade support member, and supports the first blade support member with the first support member. The pin members can be arranged up and down, respectively, based on the center in the width direction.

The cleaning device main body includes: a base block, a first side block and a second side block, wherein the first side block and the second side block are arranged on both sides of the base block, and can be formed on the first side block There are two or more rows of through holes through which the first angle adjusting member is inserted.

According to another embodiment of the present invention, the present invention provides a slit-type coating device, comprising: a worktable, on which a substrate to be coated with a medicinal liquid is placed; a nozzle unit, which has a nozzle and a nozzle holder, the nozzle is used for The liquid medicine is applied on the substrate, and the nozzle holder fixes the upper area of the nozzle; the nozzle moving unit is used to move the nozzle unit; the above-mentioned nozzle lip cleaning device; the cleaning device moving unit is used to make the nozzle lip The cleaning device moves along the length direction of the nozzle; the cleaning device cleaning unit is used for cleaning the nozzle lip cleaning device; the bucket unit is at least partially arranged in the nozzle lip cleaning device and the cleaning device cleaning unit The lower part of the lip port contains the chemical liquid separated by the nozzle cleaning device and the cleaning liquid discharged from the cleaning unit of the cleaning device.

(effect of invention)

The effects of the nozzle mouth cleaning device and the slit-type applicator thereof according to the present invention are as follows:

First, in order to make the front end of the blade contact the surface of the nozzle mouth in parallel, a support pin member is provided as the center of rotation in the width direction of the blade, and further, the blade can be accurately and quickly set on the surface of the nozzle mouth. The advantages. Therefore, the setting time of the blade provided in the nozzle lip cleaning device can be shortened, and the capacity utilization rate of the device can be improved.

Second, the head of the blade has a width larger than that of the blade fastening part, and at the same time, it is stepped toward the lower direction of the blade fastening part, so that the liquid medicine separated from the surface of the nozzle mouth can be prevented from passing through the blade head The advantage of moving to the blade fastening part.

In particular, the chemical liquid has a high viscosity, and even when the blades are operated at a high speed, the chemical liquid separated by the first blade does not drop to other blades arranged adjacently, so that the spraying can be prevented. The cleaning of the mouth of the lips is not acceptable, so there is an advantage that the production time of the product can be shortened.

Third, in order to incline the machined surface so that the thickness becomes thinner toward the tip of the tip of the blade head, the tip of the blade that is in contact with the surface of the nozzle mouth is formed sharply, and there is an advantage that the cleaning power on the surface of the nozzle mouth can be improved. .

Fourth, an angle adjusting member for moving the blade supporting member is arranged in two or more rows up and down while pressing the rear face of the blade supporting member, which has the advantage of being able to adjust the installation angle of the blade more accurately and easily.

Description of drawings

FIG. 1 is a perspective view showing an embodiment of the slit-type applicator of the present invention.

FIG. 2 is a perspective view showing a nozzle and a nozzle lip cleaning device provided in the slit type applicator of FIG. 1 .

FIG. 3 is a front view showing a state in which a nozzle lip port cleaning device is installed on the nozzle port surface of FIG. 2 .

FIG. 4 is an enlarged perspective view showing a main part of the jet lip port cleaning device of FIG. 2 .

FIG. 5 is a plan view of a first blade provided in the nozzle lip port cleaning device of FIG. 4 .

6 is a view showing a state in which the first blade, the first blade support member, and the first support pin member are coupled to the cleaning device main body provided in the nozzle lip cleaning device of FIG. 4 .

7 is a plan view showing a coupled state of the first blade support member, the first support pin member, and the first blade of FIG. 6 .

Detailed ways

Hereinafter, preferred embodiments of the present invention that specifically achieve the above-mentioned problems to be solved will be described with reference to the accompanying drawings. In describing the present embodiment, the same names and the same symbols are used for the same structures, and additional explanations thereon are omitted below.

Referring to FIGS. 1 to 7 , an embodiment of a nozzle mouth cleaning device and a slit-type applicator using the cleaning device according to the present invention will be described.

As shown in FIG. 1 and FIG. 2 , the slit type coating device includes: a table 1, a nozzle unit 100, a nozzle moving unit 2, a nozzle lip cleaning device 200, a cleaning device moving unit 4, a cleaning device cleaning unit 5, Tank unit 3 and atmospheric chamber 6 .

Specifically, a substrate to be applied with a chemical liquid is placed on the worktable 1 , the nozzle unit 100 moves on the upper surface of the substrate, and simultaneously applies the chemical liquid to the substrate.

The nozzle unit 100 includes: a nozzle 110 for applying the liquid medicine on the substrate; and a nozzle holder 120 for fixing the upper region of the nozzle 110 .

The nozzle 110 includes: a nozzle main body 111 coupled to the nozzle holder 120 ; a nozzle lip 113 protruding toward the lower region of the nozzle main body 111 and spraying the liquid medicine.

The nozzle moving units 2 are disposed on both sides of the nozzle holder 120 and move the nozzle holder 120 , thereby moving the nozzle 110 .

The nozzle lip cleaning device 200 is used to remove the liquid medicine adhered to the nozzle lip 113 , and the blade of the nozzle lip cleaning device scrapes off the medicine in a state of contacting the surface of the nozzle lip 113 . liquid. The configuration of the nozzle port cleaning device 200 will be described in detail later.

The cleaning device moving unit 4 moves the nozzle lip cleaning device 200 along the longitudinal direction of the nozzle 110 . That is, while the nozzle 110 remains stationary, the cleaning device moving unit 4 moves the nozzle lip cleaning device 200 , and the nozzle lip cleaning device 200 removes the medicine adhering to the nozzle lip 113 . liquid.

The cleaning device cleaning unit 5 cleans the nozzle lip cleaning device 200 used in the process of removing the chemical solution adhering to the nozzle lip 113 .

In addition, at least a part of the tank unit 3 is arranged at the lower part of the nozzle lip cleaning device 200 and the cleaning device cleaning unit 5 . The tank unit 3 accommodates the chemical solution separated by the nozzle lip cleaning device 200 and the cleaning solution discharged from the cleaning device cleaning unit 5 .

The air chamber 6 is a place where the nozzle 110 is housed before the nozzle 110 is used. When the nozzle 110 is not in use, in order to prevent the spray port of the nozzle from drying out, the air chamber 6 is placed in the air chamber 6 . Always have cleaning fluid.

Referring to FIGS. 2 to 7 , an embodiment of a nozzle lip port cleaning device according to the present invention will be described as follows.

The nozzle cleaning device 200 includes: a cleaning device main body 210; a shower unit 220 arranged in a rear area of the cleaning device main body 210; a blade supporting unit combined with the inner side of the cleaning device main body 210; The blade unit of the blade support unit; the angle adjustment unit for adjusting the setting angle of the blade provided in the blade unit; the support pin unit for making the front end of the blade parallel to the surface of the nozzle mouth; The support pin unit and the blade unit are combined with a combination unit (not shown) of the blade support unit.

The cleaning device main body 210 is moved by the cleaning device moving unit 4 , and the blade unit, the blade support unit, the angle adjustment unit, the support pin unit and the shower unit are mounted on the cleaning device main body 210 220.

Specifically, the cleaning device main body 210 includes a base block 215 , a first side block 211 and a second side block 213 arranged on both sides of the base block 215 . With reference to FIG. 3 , the first side block 211 is disposed on the left side of the base block 215 , and the second side block 213 is disposed on the right side of the base block 215 .

The base block 215 , the first side block 211 and the second side block 213 are formed into one piece, and the inner side of the first side block 211 and the inner side of the second side block 213 are opposite to the base. The upper surface of the block 215 is formed inclined in the upper direction.

The blade support unit includes: a first blade support member 230 arranged on the inner side of the first side block 211; a second blade support member 23 arranged on the inner side of the second side block 213; The third blade support member 26 above the base block 215 .

The first blade support member 230 supports the first blade 250 of the blade unit, the second blade support member 23 supports the second blade 25 of the blade unit, and the third blade support member 26 supports the blade The third blade 28 of the unit.

The structures of the first blade support member 230 and the second blade support member 23 are substantially the same, and therefore, only the first blade support member 230 will be described below.

The first blade support part 230 includes: a first support part 231 combined with the inner surface of the first side block 211 ; formed extending from the first support part 231 and combined with the lower region of the first blade 250 the second support part 233.

A first fastening hole (not shown) into which another fastening member (not shown) for inserting the first blade supporting member 230 is formed is formed in the first support portion 231 . Combined with the inner side of the first side block 211 .

The second support portion 233 is formed obliquely upward with respect to the first support portion 231 , and a first coupling member (not shown) for coupling the coupling unit is formed in the second support portion 233 . Two fastening holes 233a.

The first coupling part couples the first blade 250 and the first support pin part 240 of the support pin unit to the first blade support part 230 at the same time.

Specifically, the first coupling member is fastened to the second fastening hole while penetrating the fastening slit 251a of the first blade and the fastening position variable region 245 of the first support pin member 233a, and then combine the rear of the first blade and the rear area of the first support pin member 240 with the second support portion 233.

On the other hand, the blade unit includes: a first blade 250 coupled to the first blade support member 230; a second blade 25 coupled to the second blade support member 23; coupled to the third blade support Third blade 28 of component 26 .

The front end of the first blade 250 is in contact with the first side surface 113a of the nozzle mouth, the front end of the second blade 25 is in contact with the second side surface 113b of the nozzle mouth, and the front end of the third blade 28 Contact with the nozzle tip (not shown) that forms the liquid medicine discharge port of the nozzle mouth.

The first blade 250 and the second blade 25 are disposed at an oblique angle to each other, and the third blade 28 is inclined in the upper direction.

The first blade 250 scrapes off the liquid medicine adhering to the first side surface 113a of the spout mouth, the second blade 25 scrapes off the medicine liquid adhering to the second side surface 113b of the spout mouth port, and the first The three blades 28 scrape off the liquid medicine adhering to the tip of the nozzle.

The structures of the first blade 250 and the second blade 25 are actually the same, so the description is limited to the first blade 250 .

The rear end of the first blade 250 is combined with the first blade support part 230, and the front end is in contact with the first side surface 113a of the nozzle mouth, so as to scrape off the surface of the nozzle mouth after discharging the liquid medicine , that is, scraping off the chemical liquid adhering to the first side surface 113a of the nozzle mouth.

Specifically, referring to FIG. 5 , the first blade 250 includes: a blade fastening portion 251 coupled to the first blade supporting member 230 ; a blade head 253 extending from the blade fastening portion 251 .

The blade fastening portion 251 is formed with a fastening slit 251 a for coupling the first blade support member 230 .

The blade head 253 includes: a head rear part 253a extending from the blade fastening part 251; and a head front part 253b extending from the head rear part 253a.

In particular, referring to FIG. 5 , the surface of the front portion of the head portion 253b is inclined, and the thickness of the blade head portion 253 decreases toward the front end of the blade head portion 253 .

In the present embodiment, the head front portion 253b is processed by chamfering, but the present invention is not limited to this, and can be processed by various methods.

The front part of the head part 253b is the part that contacts the surface of the nozzle mouth 113. The sharper the tip of the front part of the head part 253b (ie, the front end of the blade head) is, the more effectively it can remove the surface of the nozzle. The chemical solution on the first side surface 113a of the nozzle mouth can improve the cleaning power of the nozzle mouth.

In addition, the lower region 253d of the head front portion has a chamfered shape to prevent interference with other adjacent blades (ie, the head front portion of the second blade 25 and the head front portion of the third blade 28).

Usually, the lower end of the blade head is located lower than the lower end surface of the nozzle mouth 113. If the lower end of the blade head 253 is not in a chamfered shape, the lower end of the blade head of another adjacent blade will occur. put one's oar in.

As shown in FIG. 5 , the chamfered shape of the head front portion 253b may have a straight line shape, but the present invention is not limited to this, and may also have a rounded shape.

Of course, the present invention is not limited to this, but the front part of the head of the third blade 28 may be chamfered, and the front part of the head of the third blade 28 may be formed obliquely, and further toward the The thickness of the front end of the third blade 28 is thinner.

Generally, when a high-viscosity chemical liquid is separated from the surface of the nozzle mouth, the chemical liquid will drop toward the lower part of the blade due to its own weight. If the moving speed of the blade is too fast, the chemical liquid will not reach the target The lower part of the blade falls, but moves along the length direction of the blade and falls to the upper part of other blades arranged adjacent to the blade, resulting in unqualified cleaning.

In order to prevent the above problems, the width of the blade head 253 arranged in the present invention is larger than the width of the conventional blade head, and furthermore, it is possible to ensure the flow of the liquid medicine separated from the nozzle opening 113 to the first blade 250 The space for falling in the lower direction.

Not only that, the blade head 253 has a larger width than the blade fastening part 251, and at the same time forms a step shape toward the lower part of the blade fastening part 251, thereby more effectively preventing the liquid medicine from passing from the blade head The part 253 moves to the blade fastening part 251 .

Specifically, the width of the blade head 253 is larger than the width of the blade fastening portion 251 , and the lower region of the blade head 253 is formed while extending further downward than the lower region of the blade fastening portion 251 . In the stepped area 253c, even if the viscosity of the chemical liquid is high, the chemical liquid separated from the surface of the nozzle mouth 113 moves downward along the surface of the blade head 253 due to its own weight and then falls to the first The lower portion of the blade 250 , or after moving along the lower region of the blade head 253 , does not move toward the lower region of the blade fastening portion 251 , but falls to the lower portion of the blade head 253 .

Finally, the width of the blade fastening part 251 is kept the same as the width of the existing blade fastening part, and the width of the blade head 253 is larger than that of the existing blade head, so that the blade can be tightened with the blade The size of the attachment to which the fixing portion 251 is fastened remains unchanged, so that the device can be miniaturized without moving the separated chemical solution through the blade head 253 to the blade fastening portion 251 . Therefore, other blades (ie, the second blade 25 and the third blade 28 ) will not be contaminated, so that the cleaning of the nozzle opening can be prevented from being unqualified, and the production time of the product can be shortened.

Of course, the present invention is not limited to the above-mentioned embodiments, but the blade head 253 may also include: a head rear part extending from the blade fastening part; a head part extending from the head rear part Front part; a head projection (not shown) protruding from the boundary area of the rear part of the head and the front part of the head to the surface of the blade head.

The liquid medicine separated from the surface of the nozzle mouth by the front part of the head does not move to the rear part of the head while colliding with the head projection when the blade moves, but falls to the blade the lower part.

On the other hand, the angle adjusting unit includes: a first angle adjusting member 270 provided on the cleaning device main body 210 and moving the first blade support member 230; A second angle adjusting member (not shown) to which the second blade supporting member 23 moves.

The structures of the first angle adjustment member 270 and the second angle adjustment member are substantially the same, so the description is limited to the first angle adjustment member 270 .

The first angle adjusting member 270 is arranged behind the first blade supporting member 230, and presses the rear of the first blade supporting member 230, so as to move the first blade supporting member 230 and adjust the The relative position between the front end of the first blade 250 and the surface of the nozzle mouth 113 .

The first angle adjusting member 270 presses the first blade supporting member 230 while penetrating the first side block 211 .

Specifically, the first angle adjustment member 270 includes: an upper angle adjustment member 272 for pressing the upper region of the first blade support member 230 with the width direction center of the first support pin member 240 as a reference; The lower angle adjusting member 271 of the lower region of the first blade supporting member 230 is pressed.

Here, two or more rows of through holes are formed in the first side block 211 , and the through holes include a first through hole 211 a through which the upper angle adjustment member 272 is inserted, and a first through hole 211 a into which the lower angle adjustment member 271 is inserted. The second through hole 211b penetrated therethrough.

The angle adjustment members are arranged in two or more rows up and down in order to press the blade support member to adjust the installation angle of the blades, so that the installation angle of the blades can be adjusted more accurately and easily.

On the other hand, the support pin unit includes: a first support pin member 240 disposed above the first blade support member 230 ; and a second support pin member 24 disposed above the second blade support member 23 .

The first support pin member 240 is arranged between the first blade support member 230 and the first blade 250, and serves as the center of rotation in the width direction of the first blade 250, and is further supported by the first blade. When the component 230 moves, the front end of the first blade 250 contacts the surface of the nozzle lip 113 in parallel.

The structures of the first support pin member 240 and the second support pin member 24 are substantially the same, so the description is limited to the first support pin member 240 .

The first support pin member 240 includes: a pin fastening portion 241 coupled to the first blade support member 230 ; a pin extending from the fastening portion 241 while supporting a partial area of the blade head 253 Support part 243 .

A fastening position variable region 245 is formed in the pin fastening portion 241 for changing the coupling position of the first support pin member 240 coupled to the first blade supporting member 230 .

In the present embodiment, the fastening position variable region 245 is arranged in the shape of a long hole, but the present invention is not limited to this, and may be arranged in a plurality of hole shapes spaced apart by a fixed distance, and may also be arranged into a slit shape of a fixed length.

The width of the pin supporting portion 243 is smaller than the width of the pin fastening portion 241 , and the pin supporting portion 243 may be formed to extend from a central region in the width direction of the pin fastening portion. Also, the width of the pin support portion 243 has a value smaller than the width of the blade head portion 253 .

Of course, the present invention is not limited to this, but the pin supporting portion 243 and the pin fastening portion 241 have the same width, and may also have a value smaller than the width of the blade head portion 253 .

The width of the pin support portion 243 has a value smaller than the width of the blade head portion 253 , and the pin support portion 243 is the center of rotation in the width direction of the blade head portion.

Specifically, referring to FIG. 7 , the remaining area of the blade head 253 is away from the In the case of the surface of the nozzle mouth 113, that is, when the front end of the first blade 250 is not in parallel contact with the surface of the nozzle mouth 13, the user can make the front end of the first blade 250 and the nozzle The surfaces of the lip opening 113 are parallel, and the lower angle adjusting member 271 is pushed first, while pressing a partial area of the first blade supporting member 230 (ie, pressing the lower area of the second supporting portion 233 ).

In addition, the user adjusts the fastening member coupled to the first fastening hole (not shown) of the first supporting part 231 , and at the same time, the first blade supporting member 230 can perform the fastening of the first side block 211 by the first blade supporting member 230 . move.

In this way, the lower region of the second support portion 233 presses the rear of the lower region of the pin fastening portion 241 and the rear of the lower region of the blade fastening portion 251 simultaneously.

In addition, the lower region of the blade fastening portion 251 and the lower region of the extended blade head 253 are subjected to a force in a direction of pulling up from the bottom surface of FIG. 7 .

At this time, the pin support portion 243 supports the blade head portion 253 and serves as the center of rotation of the blade head portion 253 in the width direction, and the upper region of the blade head portion 253 receives the pin support portion 243 as the center. It rotates with the force in the inner direction of the bottom surface shown in FIG. 7 .

Finally, the pin support portion 243 acts as follows: while pressing the back of the blade head 253, the blade head 253 is pressed against the surface of the nozzle mouth 113 with elastic restoring force, and at the same time becomes a The center of rotation in the width direction of the blade head 253 also helps the front end of the first blade 250 and the surface of the nozzle opening 113 to be easily parallel.

That is, the pin support portion 243 acts as a lever in the width direction of the first blade 250 , and at the same time helps the front end of the first blade 250 to be parallel to the surface of the nozzle lip 113 .

Here, the length of the first support pin part 240 is smaller than that of the first blade 250 , and the strength of the first support pin part 240 may have a value greater than that of the first blade 250 .

The strength of the first support pin member 240 has a value greater than that of the first blade 250, so that the first blade 250 has an elastic restoring force and maintains a stably pressed state, and can be installed in the spray nozzle. Oral surface of lips.

For example, the first support pin member 240 may be made of stainless steel, and the first blade 250 may be made of resin.

Of course, the present invention is not limited to the above-mentioned embodiment, but the support pin member can also be applied to a nozzle lip cleaning device provided with a blade of a fixed width.

In addition, the support pin member can be applied to the case where the angle adjustment members are arranged in a row at the center of the rear of the blade support member. That is, the support pin member functions as follows: when the angle adjustment member presses the center rear of the blade support member in a state where the front end of the blade is not arranged in parallel with the surface of the nozzle mouth, the The pin support portion of the support pin member becomes the center of rotation in the width direction of the blade, and at the same time contributes to making the front end of the blade parallel to the surface of the nozzle mouth.

As described above, the present invention is not limited to the above-mentioned specific preferred embodiments, and those skilled in the art to which the present invention pertains can implement various modifications without departing from the gist of the present invention protected by the scope of the claims, and the Variations are within the scope of the present invention.

Commercial availability

The present invention can accurately and quickly set a blade for removing the chemical liquid adhered to the nozzle mouth after discharging the chemical liquid, and at the same time can improve the cleaning power of the nozzle mouth, so it can be used in a slit type applicator, so it can be used in The slit type coating device is used in the coating process of coating various chemical liquids on the substrate surface in the manufacturing process of the substrate for flat panel display.

Claims (12)

1. a spray lip cleaning device, is characterized in that, comprises: main body of cleaning device; a blade support unit, having a first blade support member combined with the main body of the cleaning device; The blade unit has a first blade, the rear end of the first blade is combined with the first blade support member, and the front end is in contact with the surface of the nozzle mouth, so as to scrape off the spray liquid and adhere to the surface of the nozzle mouth the medicinal solution; An angle adjustment unit including a first angle adjustment member arranged in the cleaning apparatus main body and adjusting the front end of the first blade and the spray nozzle while moving the first blade support member the relative position between the oral surfaces of the lips; a support pin unit including a first support pin member arranged between the first blade support member and the first blade and serving as a center of rotation in the width direction of the first blade, Further, when the first blade supporting member moves, the front end of the first blade is in parallel contact with the surface of the nozzle mouth; Wherein, the first angle adjusting member is disposed at the rear of the first blade support member, and moves the first blade support member while pressing the rear face of the first blade support member, and moves the first blade support member with the the upper and lower angle adjustment parts arranged up and down respectively on the basis of the width direction center of the first support pin part; Wherein, the upper angle adjustment member pressurizes the upper region of the first blade support member with the width direction center of the first support pin member as a reference; the lower angle adjustment member is based on the width of the first support pin member. The lower region of the first blade support member is pressed with the center in the width direction as a reference. 2. The device according to claim 1, characterized in that, The first blade includes: a blade fastening part coupled to the first blade support member; a blade head extending from the blade fastening part; The first support pin part includes: a pin fastening part coupled to the first blade support part; and a pin support part extending from the pin fastening part while supporting a partial area of the blade head. 3. The device according to claim 2, characterized in that, further comprising: a coupling unit having a first coupling member for coupling the first blade and the first support pin member to the first blade support member at the same time, The width of the pin support has a value smaller than the width of the blade head. 4. The device according to claim 2, characterized in that, A fastening position variable region for changing the coupling position of the first support pin member coupled to the first blade supporting member is formed in the pin fastening portion. 5. The device according to claim 2, characterized in that, The width of the pin supporting portion is smaller than the width of the pin fastening portion, and the pin supporting portion is formed to extend from a central region in the width direction of the pin fastening portion. 6. The device according to claim 2, characterized in that, The length of the first support pin member is smaller than the length of the first blade, and the strength of the first support pin member has a value greater than that of the first blade. 7. The device according to claim 2, characterized in that, In order to prevent the liquid medicine separated from the surface of the nozzle mouth from moving to the blade fastening portion through the blade head, the blade head has a larger width than the blade fastening portion while tightening to the blade The lower direction of the solid portion is formed in a stepped shape. 8. The device according to claim 7, characterized in that, At least a portion of the lower region of the blade head has a chamfered shape to prevent interference with other adjacent blades. 9. The device according to claim 2, characterized in that, The blade head includes: a rear part of the head extending from the blade fastening part; a front part of the blade extending from the rear part of the head and forming an inclined surface, and further toward the blade head. The thickness of the front end is thinner. 10. The device according to claim 2, characterized in that, The blade head includes: a rear part of the head extending from the blade fastening part; a front part of the head extending from the rear part of the head; a head protrusion extending from the rear part of the head and the The boundary area of the front portion of the head protrudes to the surface of the blade head. 11. The device according to claim 1, characterized in that, The cleaning device main body includes: a base block, a first side block and a second side block, wherein the first side block and the second side block are arranged on both sides of the base block, Two or more rows of through-holes through which the upper angle adjustment member and the lower angle adjustment member are inserted are formed in the first side block. 12. A slit type smearing device, characterized in that, comprising: A workbench, where the substrate to be coated with the liquid medicine is placed; a nozzle unit, which has a nozzle and a nozzle holder, the nozzle is used for applying the liquid medicine on the substrate, and the nozzle holder fixes the upper area of the nozzle; a nozzle moving unit for moving the nozzle unit; The lip orifice cleaning device of any one of claims 1 to 11; a cleaning device moving unit to move the nozzle lip cleaning device along the length direction of the nozzle; a cleaning device cleaning unit, used for cleaning the spray lip port cleaning device; A bucket unit, at least a part of which is arranged at the lower part of the nozzle lip cleaning device and the cleaning device cleaning unit, and accommodates the chemical solution separated by the nozzle lip cleaning device and the cleaning device discharged from the cleaning device cleaning unit liquid.

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