KR100583219B1 - Coating tool and coating device - Google Patents

Abstract

This invention makes it easy to adjust the width | variety of the slot through which a coating liquid flows.

The present invention extends the slot 16 in the flow direction of the coating liquid to the side surface 17 on the side opposite to the side surface 12 defining the slot 16 in the head member 11A. A concave portion 20 having a pair of wall surfaces 22 and 22 facing each other in a direction along the direction is formed. By increasing the length in the direction along the extension direction of the slot 16 in the recessed part 20, 11 A of head members are deformed so that the distance between a pair of wall surfaces 22 and 22 may become large, and the slot 16 The adjustment unit 30 which can adjust the width of) is installed.

Description

Coating tool and coating device {COATING TOOL AND COATING DEVICE}

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the application | coating tool which concerns on 1st Embodiment of this invention.

2 is a cross-sectional view taken along the line A-A in FIG.

It is a principal part enlarged side view which shows the application | coating tool which concerns on 1st Embodiment of this invention.

It is a principal part enlarged sectional view which shows the application | coating tool which concerns on 1st Embodiment of this invention.

It is a principal part enlarged side view which shows the application | coating tool which concerns on 2nd Embodiment of this invention.

It is a principal part enlarged sectional view which shows the application | coating tool which concerns on 2nd Embodiment of this invention.

* Explanation of symbols for the main parts of the drawings *

10: application head 11A, 11B: head member

12: one side (side which partitions a slot)

15: pocket 16: slot

17: the other side (the side opposite to the side which partitions a slot)

20: recess 22: wall

30: adjustment unit 34: fluid pressure chamber

35: piston mechanism 40: wedge receiving portion

45: wedge member

The present invention relates to a coating apparatus used for applying a coating liquid to a workpiece and a coating tool mounted thereon.

Conventionally, as an application | coating tool, it has the application | coating head which consists of a pair of head member, for example, and extends to the front end side from the pocket to which coating liquid is supplied, and the front-end | tip from this pocket between the opposing side surfaces in a pair of head member, It is known that the grooved slot is opened at the tip of the compartment.

Such an application tool is mounted on the application apparatus such that the distal end of the application head is disposed opposite the object to be coated, and the longitudinal direction (the longitudinal direction of the slot) of the application head is coincident with the width direction of the object to be coated. The coating liquid supplied from the tank into the pocket by the supply pump flows through the slot and is discharged from the tip of the coating head, so that the coating liquid is applied to the surface of the workpiece to be moved relative to the tip of the coating head.

By the way, the coating device as described above is not only used for applying the coating liquid to the surface of the flexible sheet-like coating, but also for example, a panel-like coating such as a glass substrate that becomes a panel body of a liquid crystal display. Although it is used also for apply | coating coating liquids, such as a color resist, to the surface of water, in either case, it is strongly requested | required to make the film thickness of the coating liquid apply | coated to the surface of a to-be-coated object uniform.

In other words, in the conventional coating device, especially at the start of coating, the flow rate of the coating liquid discharged from the distal end of the coating head through the slot due to, for example, the position of the supply port when the coating liquid is supplied into the pocket, etc. Since it hardly becomes constant over approximately the entire length of the direction along the longitudinal direction of this slot, there exists a problem that the film thickness of the coating liquid apply | coated to the surface of a to-be-coated object will become nonuniform.

On the other hand, Japanese Patent Laid-Open No. 6-23821 (FIG. 1) includes a plurality of push rods and adjusting bolts for pressing the leading end portions of one of the head members constituting the application head so as to be arranged along the longitudinal direction of the slot. The formed application tool is disclosed, and by turning the adjustment bolt, the push bolt in contact with the tip of the adjustment bolt locally deforms the tip of the head member toward the opening side of the slot by deforming the slot. The width of the can be adjusted.

And the surface of a to-be-coated object is adjusted by adjusting the width | variety of this slot so that the flow volume of the coating liquid discharged through the slot and discharged from the front-end | tip of an application head may be substantially constant over substantially the entire length of the direction along the longitudinal direction of a slot. It aims at making the film thickness of the coating liquid apply | coated to the uniform.

 However, the flow rate of the coating liquid discharged from the front end of the coating head does not change locally in the direction along the longitudinal direction of the slot, so it is necessary to adjust the width of the slot in a predetermined region in the direction along the longitudinal direction of the slot. Therefore, as in the application tool disclosed in Japanese Unexamined Patent Application Publication No. Hei 6-23821, if the tip portion of the head member is configured to locally press the tip of the push rod, a plurality of adjustments formed within the range corresponding to the predetermined area The bolts should be turned in turn to press the tip of the head member at each tip of the plurality of push rods. Therefore, the pressure state of the head member by a plurality of push rods interferes with each other, and a non-contact point is likely to occur between the tip of the push rod and the tip of the head member, and repeated a plurality of times until the width of the slot is adjusted to a desired value. It was necessary to adjust, and there existed a problem that work time became long.

In addition, since the width of the slot is adjusted by directly pressing the tip of the head member by turning the adjusting bolt, the width adjusting amount (the behavior of the width change of the slot) of the slot is formed in the male screw portion of the adjusting bolt. It became dependent on the pitch of a thread, and the fine adjustment of about micron degree was difficult, for example.

This invention is made | formed in view of the said subject, and an object of this invention is to provide the application | coating tool and application | coating apparatus which can adjust the width | variety of the slot through which a coating liquid flows easily.

In order to solve the said subject and achieve this objective, the application | coating tool which concerns on this invention has the application | coating head comprised by the several head member, and between the mutually opposing side surfaces of the said several head member, A groove-type slot opening at the tip end is formed, and a coating tool flows through the slot and is discharged from the tip of the coating head, and is provided on the side opposite to the side partitioning the slot in the head member. And a concave portion having a pair of wall surfaces facing each other in a direction along an extension direction of the slot that is a flow direction of the coating liquid, and in this concave portion, a length in a direction along the extension direction of the slot is formed. The adjustment unit which can adjust the width of the slot by deforming the head member so as to increase the distance between the pair of wall surfaces by making it larger. The present invention is characterized in that the coating device according to the present invention is mounted so that the distal end of the dispensing head is disposed so as to face the object to be coated, from the distal end of the dispensing head. By discharging the coating liquid, the coating liquid is applied to the coated object which is relatively moved with respect to the tip of the coating head.

In this invention, by using the adjustment unit formed in the recessed part formed in the side surface of a head member, and deforming a head member so that the distance between a pair of wall surface in this recessed part may be mutually opposing in a some head member. It is possible to adjust the width of the slots partitioned between the sides. In addition, the width of the slot to be adjusted can be set not only to be substantially constant over approximately the entire length in the direction along the longitudinal direction of the slot, but also to be set to be intentionally larger or smaller in any given area.

By using such an adjustment unit, by appropriately giving the length in the direction along the longitudinal direction of the slot in the adjustment unit as necessary, the pressing portion at the time of deforming the head member is prevented from being localized. Even in the case of adjusting the width of the slot in the area, it is not necessary to repeatedly adjust the number of times as in the case of using the conventional adjusting bolt, and the width of the slot can be easily adjusted.

Here, the adjustment unit for adjusting the width of the slot is formed in the fluid pressure chamber therein, by the fluid pressure generated by the compression of the fluid enclosed in the fluid pressure chamber, in the direction along the extension direction of the slot It is preferable that it is set as the structure which enlarges the length of, or is made into the structure which enlarges the length in the direction along the extension direction of the said slot by the pressing force which the wedge member provided in the inside moves.

With such a configuration, since the length in the direction along the extension direction of the slot in the adjustment unit can be increased in a tendency to change very slowly by the fluid pressure or the pressing force of the wedge, The behavior of the width change becomes very gentle, allowing for the adjustment of a fine width of, for example, about a micron.

The concave portion is formed to extend in the direction along the longitudinal direction of the slot, and if the adjustment unit can be moved and fixed to any position in the direction along the longitudinal direction of the slot, It can be fixed by moving to an arbitrary position in the direction along the longitudinal direction of the slot and adjusting the width of the slot in the region corresponding to the arbitrary position.

Embodiment of the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring an accompanying drawing.

In the application head 10 of the application tool according to the first embodiment of the present invention, as shown in Figs. 1 and 2, the pair of head members 11A and 11B have their side surfaces 12 and 12. By being combined so as to face each other, it is configured to have a long shape.

Moreover, as for the pair of head members 11A and 11B which comprise the application head 10, these rear-end side parts (lower side in FIG. 1 and FIG. 2) parts have the longitudinal direction ( Side with respect to both end surfaces which are bolted with a plurality of bolts 13... At predetermined intervals in the direction along the left and right directions in FIG. 1 and located at both ends in the direction along the longitudinal direction of the application head 10. By attaching the plates 14 and 14, they are fixed to each other.

The one side surface 12 in one head member 11A (11 A of head members located on the right side in FIG. 2) constituting the application head 10 has almost the entire surface of which is substantially flat. On the other hand, one side surface 12 in the other head member 11B (head member 11B located on the left side in FIG. 2) constituting the application head 10 is along the longitudinal direction of the application head 10. The front end side portion having a concave groove 12A cut so as to extend in the direction, and positioned at the front end side of the application head 10 rather than the concave groove 12A, is applied to the application head 10 rather than the concave groove 12A. It is retracted by a predetermined interval with respect to the rear end side portion located at the rear end side of the.

Therefore, when a pair of head member 11A, 11B is combined so that one side surface 12 and 12 may mutually oppose each other, 11 A of head members 11A between one side surface 12 and 12 which oppose each other In the pocket 15 which is the space of the recessed groove 12A formed in the one side surface 12 in one side, and the one side surface 12 in the other head member 11B, and in the one head member 11A. Groove-shaped slot 16, which is a space between one side face 12 of the side face and a tip side portion of one side face 12 in the other head member 11B, has a longitudinal direction of the application head 10. It is partitioned to match the longitudinal direction.

This slot 16 extends toward the front end side of the application head 10 from the portion communicating with the pocket 15, and extends so as to open at the front end of the application head 10, and the coating liquid is pocket 15. ), The coating liquid flows through the slot 16 communicated with the pocket 15 toward the front end side of the coating head 10 and is discharged from the front end of the coating head 10.

Moreover, in the pair of head member 11A, 11B which comprises the application head 10, the other side located in the opposite side to the one side 12 and 12 which partitions the slot 16 and the pocket 15 is formed. The side surfaces 17 and 17 of the inclined surfaces 17A and 17A are inclined so that the portion located near the distal end of the dispensing head 10 faces the slot 16 side toward the distal end of the dispensing head 10. ), And the application head 10 composed of such a pair of head members 11A and 11B has a shape in which the tip of its tip is tapered.

Then, the other side surface 17 (the other side surface 17 except the inclined surface 17A) in one head member 11A constituting the application head 10 is opened in the other side surface 17. The concave portion 20, which has been concave in one step toward the side surface 12: the slot 16, is extended in the direction along the longitudinal direction of the slot 16 (the longitudinal direction of the coating head 10). Formed.

The recessed part 20 intersects with the other side surface 17 and is orthogonal to the extending direction (the up-down direction in FIG. 2 and the longitudinal direction of the application head 16 in the slot 16) which is the flow direction of the coating liquid. A pair of wall surfaces 22 and 22 facing each other in a direction along the direction of the extension of the slot 16 as viewed in the cross section, and the pair of wall surfaces 22 and 22 are connected to each other, The bottom surface 21 toward the opening side to the side surface 17 in 20 is provided.

Moreover, as for the pair of wall surfaces 22 and 22 in the recessed part 20, the distance (distance in the direction along the extending direction of the slot 16) between these pair of wall surfaces 22 and 22 is a recessed part. It inclines with each other so that it may become small gradually toward the opening side at 20.

Such a recessed part 20 is formed, and 11 A of one head members become a thin part adjacent to the bottom surface 21 of the recessed part 20, and the simple side pocket 12 of one side 12. However, in the first embodiment, in order to form a thinner portion, the bottom surface 21 of the recessed portion 20 is opened in the bottom surface 21 and is stepped toward one side surface 12 side. The concave second recess 21A is formed to extend in the direction along the longitudinal direction of the slot 16 in the same manner as the recess 20.

In the recessed part 20, as shown in FIGS. 1-4, the adjustment unit 30 which comprises the substantially rectangular body extended in the direction along the longitudinal direction (the longitudinal direction of the coating head 10) of the slot 16 is carried out. Is formed to be movable in the direction along the longitudinal direction of the slot 16 which is the direction in which the recessed part 20 extends.

The adjustment unit 30 includes a pair of pressing surfaces 32 and 32 in contact with each of the pair of wall surfaces 22 and 22 in the recess 20 and the bottom surface 21 in the recess 20. ) And a front face 33 exposed to the opening to the side surface 17 in the recess 20.

In addition, the pair of pressing surfaces 32 and 32 in the adjustment unit 30 are similar to the pair of wall surfaces 22 and 22 in the concave portion 20. The distance between the two ends 32 (distance in the direction along the extension direction of the slot 16) is inclined to each other so as to become smaller gradually toward the front face 33 side.

For this reason, although the adjustment unit 30 is movable in the direction along the longitudinal direction of the slot 16 in the recessed part 20, it moves toward the opening side from the recessed part 20 to the side surface 17. FIG. It is not to escape from.

In this adjusting unit 30, one of the pressing surfaces 32, 32 of the pair of pressing surfaces 32, 32 facing the direction along the extending direction of the slot 16 toward the tip side of the application head 10 is removed. The fluid pressure chamber 34 in which oil as a fluid is enclosed is formed inside the containing part, and by the presence of this fluid pressure chamber 34, the part containing the one pressure surface 32 can be elastically deformed. Thin

And inside this adjustment unit 30, the piston mechanism 35 connected to the said fluid pressure chamber 34 is provided, This piston mechanism 35 is exposed to the front surface 33 of the adjustment unit 30. As shown in FIG. By turning the adjustment screw 36 to be used, the piston 37 in contact with the tip of the adjustment screw 36 is advanced to compress the oil as a fluid enclosed in the fluid pressure chamber 34 connected to the piston mechanism 35. It is supposed to be. In the fluid pressure chamber 34, oil as a fluid is sealed through a hole portion that is opened in the front face 33 of the adjustment unit 30, and then sealed by a grease nipple 38.

The coating tool having the above-described configuration is arranged so that the tip of the coating head 10 is disposed opposite to the coated object, and the width of the coated object is changed in the longitudinal direction (the longitudinal direction of the slot 16) of the coating head 10. The coating liquid attached to the coating device so as to coincide with the direction, and supplied from the coating liquid tank into the pocket 15 by the supply pump is passed through the slot 16 and discharged from the tip of the coating head 10, The coating liquid is applied to the surface of the workpiece to be moved relative to the tip of the coating head 10.

In the present first embodiment as described above, when adjusting the width of the slot 16, first, the adjustment unit is movable in the direction along the longitudinal direction of the slot 16, which is the direction in which the concave portion 20 extends. 30 is moved to the position corresponding to the area | region for making the width | variety of the slot 16 small.

Subsequently, by turning the adjusting screw 36 of the piston mechanism 35 provided in the inside of the adjusting unit 30, the piston 37 is advanced in the direction shown by the arrow X in FIG. 4, and the adjusting unit 30 is carried out. The oil as the fluid enclosed in the fluid pressure chamber 34 formed in the interior thereof is compressed.

Then, in the adjustment unit 30, the portion including one pressing surface 32 which is thinned to the extent of elastic deformation by the fluid pressure generated by the compression of the oil as the fluid in the fluid pressure chamber 34 is shown in FIG. 4. As indicated by the arrow Y, it elastically deforms to bulge toward the front end side of the application head 10, so that the distance between the pair of pressing surfaces 32, 32 in this adjusting unit 30 becomes large, that is, the adjustment. The length in the extending direction of the slot 16 in the unit 30 becomes large.

Thereby, one head member 11A is elastically deformed with the thin part adjacent to the pocket 15 as a point so that the distance between a pair of wall surfaces 22 and 22 in the recessed part 20 may become large, With such a deformation of one of the head members 11A, the width of the slot 16 partitioned between one of the side surfaces 12 and 12 facing each other in the pair of head members 11A and 11B becomes smaller. The width of the slot 16 is adjusted (the width of the slot 16 other than the area | region which becomes small by the adjustment unit 30 enlarges in appearance).

In this first embodiment, since the adjustment unit 30 for adjusting the width of the slot 16 is movable in the direction along the longitudinal direction of the slot 16, the adjustment unit 30 is moved. The slot 16 is moved and fixed to an arbitrary position in the direction along the longitudinal direction of the slot 16, so that the slot 16 in the region corresponding to the arbitrary position (for example, the slot 16 having a width of 100 µm or more) The width of the can be adjusted.

In addition, the width of the slot to be adjusted can be set not only to be substantially constant over approximately the entire length in the direction along the longitudinal direction of the slot, but also to be set to increase or decrease intentionally in any predetermined area. .

For this reason, the flow volume of the coating liquid which flows through the slot 16 and discharges from the front-end | tip of the coating head 10 is adjusted so that it may become substantially constant over substantially the entire length of the direction along the longitudinal direction of this slot 16. FIG. By adjusting the width of the slot 16 using the unit 30, the film thickness of the coating liquid applied to the surface of the to-be-coated object can be kept uniform.

Moreover, when supplying the coating liquid with high viscosity in the pocket 15 at high pressure, the so-called center expansion phenomenon which the width | variety of the slot 16 becomes large in the substantially center part of the longitudinal direction by the pressure applied to the coating liquid is There is a possibility that a difference occurs in the flow rate of the discharged coating liquid, but by setting the width of the slot 16 assuming such a central expansion phenomenon, the inside of the slot 16 flows through the tip of the coating head 10. The flow rate of the coating liquid with a high viscosity discharged | emitted from the inside can be kept substantially constant over substantially the entire length of the slot 16 in the longitudinal direction.

And in order to adjust the width of the slot 16, by using the above-mentioned adjustment unit 30, the length in the direction along the longitudinal direction of the slot 16 in this adjustment unit 30 is required. By providing appropriately accordingly, the press part at the time of deforming one head member 11A does not become local, and even when adjusting the width of the slot 16 in a predetermined area | region directly, using the conventional adjustment bolt As in the case where the width of the slot 16 is adjusted by local and local pressure, the adjustment repeated several times is not necessary, and the width of the slot 16 can be easily adjusted.

In addition, the adjustment unit 30 uses the fluid pressure (hydraulic pressure) generated by the compression of oil as a fluid sealed therein, so that the length in the direction along the extension direction of the slot 16 is greatly increased with a tendency to change very slowly. Because of this configuration, the adjustment unit 30 deforms one of the head members 11A so that the behavior of the width change of the slot 16 to be adjusted is very smooth, and fine width adjustment of, for example, about a micron is possible. Become.

In particular, since the oil is selected as the fluid enclosed in the fluid pressure chamber 34 and the adjustment unit 30 using the oil pressure generated by the compression of the oil is employed, the loss in adjusting the width of the slot 16 can be reduced. Can be.

Next, although 2nd Embodiment of this invention is described, since the structure of the adjustment unit 30 differs from 1st Embodiment mentioned above, the same code | symbol is used about the same part as this 1st Embodiment. The description is omitted.

In the adjustment unit 30 forming the substantially rectangular body used in the second embodiment of the present invention, as shown in FIGS. 5 and 6, the longitudinal direction of the slot 16 is opened while being opened in the front face 33. The wedge accommodating part 40 opened in the both end surfaces 30A and 30A located in the both ends of the said direction is formed.

The wedge accommodating part 40 opposes each other in the direction along the extension direction (up-down direction in FIG. 6) of the slot 16 which cross | intersects the front surface 33 of the adjustment unit 30, and is the flow direction of coating liquid. The bottom surface 41 which connects a pair of wall surfaces 42 and 42 and these pairs of wall surfaces 42 and 42 to the opening side from the wedge accommodating part 40 to the front surface 33 at the same time. Equipped with.

Moreover, as for the pair of wall surfaces 42 and 42 in the wedge accommodating part 40, the distance (distance in the direction along the extension direction of the slot 16) between these pair of wall surfaces 42 and 42 is wedged. They are inclined with each other so as to increase gradually toward the opening side in the housing portion 40.

And in this wedge accommodating part 40, one wall surface 42 toward the rear end side of the application head 10 among the pair of wall surfaces 42 and 42 which faced the direction along the extending direction of the slot 16. ) And a relief hole 43 extending in the direction along the longitudinal direction of the slot 16 is formed in the cross ridge portion between the bottom surface 41 and the wedge member described later by the relief hole 43. A thin portion for promoting elastic deformation when 45 is inserted and moved is formed, and stress concentration at the time of elastic deformation is alleviated.

In the wedge receiving portion 40, a wedge member 45 having a pair of pressing surfaces 46 and 46 in close contact with the pair of wall surfaces 42 and 42 in the wedge receiving portion 40 is inserted. The adjustment screw 47 which penetrates this wedge member 45 toward the back surface 31 side from the front surface 33 side in the adjustment unit 30 has the bottom surface (in the wedge accommodating part 40). By being screwed into 41 A of screw holes formed in 41, this wedge member 45 is being fixed so that it may be provided in the inside of the adjustment unit 30. FIG.

In the present second embodiment as described above, when adjusting the width of the slot 16, first, the adjustment unit becomes movable in the direction along the longitudinal direction of the slot 16, which is the direction in which the concave portion 20 extends. 30 is moved to the position corresponding to the area | region which should make width | variety of the slot 16 small.

Next, by turning the adjustment screw 47 penetrating the wedge member 45 provided in the inside of the adjustment unit 30, the direction shown by arrow X in FIG. 6 (one side surface 12; slot 16). ) To move the wedge member 45 in a forward direction, and to the pair of pressing surfaces 46 and 46 in the wedge member 45, the pair of pressing surfaces 46 and 46. The pair of wall surfaces 42 and 42 in the wedge accommodating portion 40 in close contact with each other are inclined.

Then, according to the pressing force which the wedge member 45 moves, the part containing one press surface 32 in this adjustment unit 30 is shown by the arrow Y in FIG. Elastically deformed so as to move toward the tip side of the application head 10 with the portion thinned by 43 as a point, so that the distance between the pair of pressing surfaces 32, 32 in this adjusting unit 30 becomes large, In other words, the length in the extending direction of the slot 16 in the adjusting unit 30 becomes large.

Thereby, one head member 11A is elastically deformed with the thin part adjacent to the pocket 15 as a point so that the distance between a pair of wall surfaces 22 and 22 in the recessed part 20 may become large, With this deformation of one of the head members 11A, the width of the slot 16 partitioned between one of the side surfaces 12, 12 facing each other in the pair of head members 11A, 11B is adjusted to be smaller. (The width | variety of the slot 16 other than the area | region whose width becomes small by the adjustment unit 30 is made large in appearance.)

In this second embodiment as well, the same effects as in the first embodiment described above can be obtained. In particular, the wedge member 45 is used instead of the hydraulic pressure generated by the compression of oil as a fluid as in the first embodiment. Since the adjustment unit 30 which uses the mechanical pressing force by using is employ | adopted, it can respond also to the case of using a coating apparatus, for example in a clean room.

Moreover, as used in this 2nd Embodiment, the adjustment unit 30 which enlarges the length in the direction along the extension direction of the slot 16 by the pressing force which the wedge member 45 moves, and the said agent It is also possible to use together the adjustment unit 30 which enlarges the length in the direction along the extension direction of the slot 16 by the fluid pressure which the fluid generate | occur | produces as used in 1st Embodiment.

Moreover, in each said embodiment, the recessed part 20 which installs the adjustment unit 30 partitions the pocket 15 among the pair of head members 11A and 11B which comprise the application head 10. Moreover, in FIG. The concave groove 12A is formed only on one head member 11A which is not formed on one side surface 12, but, of course, a concave portion is also formed on the other side surface 17 of the other head member 11B. 20 may be provided so that the adjustment unit 30 may be provided in the recess 20.

However, since this adjustment unit 30 adjusts the width of the slot 16 by deforming the head member, when the other head member 11B is deformed, the shape of the pocket 15 is also deformed together with the pocket. Since the state of the steady flow of the coating liquid supplied in 15 may be collapsed and it may adversely affect the flow volume of the coating liquid discharged from the front-end | tip of the coating head 10, like the said each embodiment, one head member It is preferable to adjust the width of the slot 16 by deforming only 11A.

Moreover, in each said embodiment, although one adjustment unit 30 is provided in the one recessed part 20 formed so that it may extend along the longitudinal direction of the slot 16, it is not limited to this and is required. According to this, a plurality of adjustment units 30 may be formed in one concave portion 20.

In each of the above embodiments, each of the head members 11A and 11B constituting the application head 10 is described as being integral, including a portion constituting the tip of the application head 10, but is limited thereto. For example, the hard member, such as a cemented carbide, may be affixed to the front-end | tip of head member 11A, 11B.

In addition, in each said embodiment, although the application | coating head 10 was demonstrated as consisting of a pair of head member 11A, 11B, for example, the application | coating head 10 is comprised from three or more head members, These The two or more slots opened at the tip of the application head 10 are partitioned between the opposite sides of the three or more head members so that two or more coating liquids are simultaneously layered on the surface of the object to be coated. It may be.

According to the present invention, by using an adjusting unit formed in a recess formed on the side of the head member, the head members are deformed so as to increase the distance between the pair of wall surfaces in the recess, thereby facing each other in the plurality of head members. It is possible to adjust the width of the slots partitioned between the sides.

Then, by appropriately giving the length in the direction along the longitudinal direction of the slot in the adjustment unit as necessary, the pressing portion at the time of deforming the head member does not become local, and the width of the slot of the predetermined area is adjusted. In this case, it is not necessary to adjust repeatedly a plurality of times as in the case of using a conventional adjusting bolt, and the width of the slot can be easily adjusted.

Claims (6)

A coating head composed of a plurality of head members, and groove-shaped slots that are open at the tip of the coating head are partitioned between opposite sides of the plurality of head members, and a coating liquid flows through the slot to apply the coating. An application tool discharged from the tip of the head, On the side opposite to the side which partitions the slot in the head member, a concave portion having a pair of wall surfaces facing each other toward a direction along an extension direction of the slot, which is a flow direction of the coating liquid, is formed; , In this recess, by adjusting the length in the direction along the extension direction of the slot, an adjustment unit is provided which can deform the head member so as to increase the distance between the pair of wall surfaces and adjust the width of the slot. Application tool characterized in that there is. The method of claim 1, The adjusting unit has a fluid pressure chamber formed therein, and the length of the adjustment unit is increased in the direction along the extending direction of the slot by the fluid pressure generated by the compression of the fluid enclosed in the fluid pressure chamber. . The method of claim 1, And said adjusting unit enlarges the length in the direction along the extending direction of said slot by the pressing force generated by the movement of the wedge member provided therein. The method according to any one of claims 1 to 3, The recess is formed to extend in the direction along the longitudinal direction of the slot, And the adjustment unit is capable of being moved and fixed at any position in the direction along the longitudinal direction of the slot. The application | coating tool as described in any one of Claims 1-3 is attached so that the front-end | tip of the said application head may be arrange | positioned so that a to-be-coated object, and a coating liquid may be discharged from the front-end | tip of the said application | coating head, and the said application | coating head An application apparatus, characterized in that the coating liquid is applied to the object to be coated relatively moving with respect to the tip of the. The application tool according to claim 4 is mounted so as to face the front end of the application head to the object to be coated, and is relatively moved relative to the front end of the application head by discharging the application liquid from the application end of the application head. A coating apparatus, wherein a coating liquid is applied to the coated object.

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