WO2020122162A1 - Coating tool and coating method - Google Patents

Abstract

The present invention is equipped with a first head member (1) and a second head member (2) which are positioned so as to be adjacent in a first direction and extend in a second direction which is perpendicular to the first direction, a slot (5) which opens to the outside from between the tip section of the first head member (1) and the tip section of the second head member (2) in a third direction which is perpendicular to both the first direction and the second direction, a choke bar (6) which extends in the second direction inside the first head member (1) and is capable of projecting into the slot (5) from the first direction, and an adjustment mechanism (7) for adjusting the amount by which the choke bar (6) projects into the slot (5), the adjustment mechanism (7) having a shaft (15) which extends in the first direction inside the first head member (1) and is secured to the choke bar (6), a moving part (18) capable of moving in the third direction relative to the first head member (1), and a cam part (19) for converting the movement of the moving part (18) in the third direction into movement of the shaft (15) in the first direction.

Description

Coating tool and coating method

The present invention relates to a coating tool and a coating method.
The present application is filed in Japanese Patent Application No. 2018-232729 filed in Japan on December 12, 2018, Japanese Patent Application No. 2019-034880 filed in Japan on February 27, 2019, and in Japan on December 3, 2019. Priority is claimed based on the filed Japanese Patent Application No. 2019-218973, the contents of which are incorporated herein.

Conventionally, a coating tool called a slot die or the like is known. In the slot die coating, as a method for uniformly discharging the coating liquid in the coating width direction, there is a method in which a choke bar can be put into and taken out from the inside of the flow path and the flow path is arbitrarily regulated to adjust the discharge amount. This method is used in extrusion molding and the like like the T-die shown in Patent Document 1. In this T-die, an adjusting bolt is mainly used for operating the choke bar, and the moving amount of the bar is controlled based on the rotation amount of the bolt and the screw pitch.
Like the extrusion molding die shown in Patent Document 2, it has been devised to accurately measure the movement amount of the choke bar.

A method using a micrometer head is also considered in order to more finely adjust the movement amount of the choke bar as in the die coating device shown in Patent Document 3. This die coating device is arranged so as to face the coating liquid flow path, and a choke bar main body in which a plurality of dividing bars connected in one direction of the coating liquid flow path are connected to each other, and And an advancing/retreating adjuster provided on the. By advancing and retracting each split bar with each advance/retreat adjustment tool, the amount of the gap of the coating liquid flow path is adjusted for each split bar.

Japanese Utility Model Publication No. 58-33213 (U) Japanese Utility Model Publication No. 4-94423 (U) Japanese Patent Laid-Open No. 2007-44643 (A)

　In the die coating device, the advance/retreat adjusting tool extends upward from the die body. Therefore, when installing the device, it is necessary to secure a space above the device. Since the installation space is large, it may be difficult to install and it is difficult to operate the advance/retreat adjustment tool during coating. Further, it was difficult to visually recognize a portion (hereinafter, referred to as a coating portion) to which the coating liquid of the object to be coated is applied.

In view of the above circumstances, the present invention provides a coating tool that can reduce the installation space, easily adjust the position of the chalk bar even during coating, and make it easy to see the coating portion, and a coating method using the coating tool. That is one of the purposes.

One aspect of the coating tool of the present invention is arranged adjacent to each other in a first direction and faces a first head member and a second head member extending in a second direction orthogonal to the first direction, and facing each other in the first direction. Is provided between the inner side surface of the first head member and the inner side surface of the second head member, the coating liquid flows inside, and in the third direction orthogonal to the first direction and the second direction. A slot opening to the outside from between the tip of the first head member and the tip of the second head member, and a slot extending in the second direction in the first head member and from the first direction to the inside of the slot. A choke bar that can project into the slot, and an adjusting mechanism that adjusts a projecting amount of the choke bar into the slot, the adjusting mechanism extending in the first direction inside the first head member, and the choke bar. The shaft fixed to the bar, the moving part movable in the third direction with respect to the first head member, and the moving amount of the moving part in the third direction are set to the first direction of the shaft. And a cam portion for converting the movement amount of the.

In this coating tool, when the moving part of the adjusting mechanism is moved in the third direction, the cam part moves the shaft in the first direction. As a result, the choke bar is moved in the first direction together with the shaft, and the amount of protrusion of the choke bar into the slot is adjusted.
According to the present invention, it is possible to prevent the adjusting mechanism from significantly protruding from the first head member in the first direction. Thereby, the installation space of the coating tool can be reduced in the first direction, and the coating tool can be easily installed. Further, it is easy to move the moving part by operating it during coating to adjust the position of the choke bar. Further, the portion (coating portion) to which the coating liquid of the object to be coated is applied can be easily observed even during coating. Specifically, for example, when it is desired to confirm the coating state at the start of coating or to adjust the coating conditions, it is easy to visually recognize the coated portion.

In the above coating tool, it is preferable that the cam portion converts a movement amount of the moving portion in the third direction into a movement amount of the shaft in the first direction that is a value smaller than the movement amount.

In this case, since the cam portion suppresses the movement amount of the shaft in the first direction smaller than the movement amount of the moving portion in the third direction, it is easy to finely adjust the protrusion amount of the choke bar into the slot.

In the above coating tool, the cam portion is disposed on the moving portion, and an inclined surface that extends toward the first direction as it goes toward the third direction and the shaft is provided on the shaft, and the cam portion has the first direction. It is preferable to have a contact part which contacts from.

In this case, when the moving part moves in the third direction, the contact part is pushed in the first direction by the inclined surface, and the shaft is moved in the first direction together with the contact part. According to the above configuration, the amount of movement of the shaft in the first direction can be made smaller, and the position of the choke bar can be finely adjusted. Specifically, for example, it is possible to adjust the position of the choke bar on the order of micron (unit of several μm).

In the above coating tool, it is preferable that the contact portion is a roller that can roll on the inclined surface.

In this case, the frictional resistance between the contact part and the inclined surface is reduced, and the function of the cam part is stabilized.

In the coating tool, the cam portion includes a rotating shaft extending in the second direction, and a rotating member rotatable about a central axis of the rotating shaft, and the rotating member includes the rotating member. It is preferable to have a first contact portion that contacts the moving portion in the third direction and a second contact portion that contacts the shaft in the first direction.

In this case, when the moving part moves in the third direction and pushes the first contact part of the turning member, the turning member is turned about the turning axis. As a result, the second contact portion of the rotating member pushes the shaft in the first direction, and the protrusion amount of the choke bar into the slot is adjusted. While the cam portion has a simple structure, the movement amount of the moving portion in the third direction is stably converted into the movement amount of the shaft in the first direction by the cam portion.

In the above coating tool, it is preferable that the adjusting mechanism has a biasing portion that biases the shaft in the first direction toward either the moving portion or the cam portion.

In this case, the urging portion maintains the state in which the shaft is urged toward either the moving portion or the cam portion. Therefore, even if the moving portion moves in any of the third directions, the cam portion does not move. Functions stably, and the shaft can be stably moved in any of the first directions. That is, by moving the moving portion, the choke bar can be moved forward in the slot or retracted from the slot. Therefore, it is easy to adjust the position of the choke bar. Further, the biasing force of the biasing portion suppresses the rattling (backlash) of the cam portion, and the function of the cam portion becomes more stable.

In the above coating tool, it is preferable that a plurality of the adjusting mechanisms be provided side by side in the second direction.

In this case, the amount of protrusion of the choke bar into the slot can be adjusted at each position in the second direction by using multiple adjustment mechanisms. Therefore, the film thickness of the coating liquid applied to the object to be coated can be adjusted at each position in the second direction of the slot.

In the above coating tool, a fixing portion that fixes the adjusting mechanism to the first head member is provided, and the adjusting mechanism has a main body portion that supports the moving portion so as to be movable in the third direction. Preferably extends in the second direction and supports each of the body portions of the plurality of adjustment mechanisms.

In this case, each main body of the plurality of adjustment mechanisms is supported by the fixed portion, and the plurality of adjustment mechanisms and the fixed portion are unitized. By fixing this unit to the first head member, the coating tool can be easily assembled. In addition, this unit can be easily removed from the coating tool or replaced, and the time required for maintenance can be reduced. Therefore, the time for which the operation of the coating tool is stopped for maintenance or the like can be reduced, and the coating efficiency (production efficiency) can be improved. In addition, it is possible to easily perform zero point alignment (position alignment) of multiple unitized adjustment mechanisms, and it is possible to accurately control the amount of protrusion of the choke bar into the slot, resulting in stable application accuracy. And be raised.

In the coating tool, the fixing portion is fixed to the first head member, and a plurality of fixing bars extending in the second direction and a plurality of fixing bars are provided on the fixing bar at intervals in the second direction. It is preferable to have a main body portion support portion that individually supports each main body portion of the adjustment mechanism.

In this case, the action and effect of the fixing portion described above can be obtained with a simple structure.

In the above coating tool, it is preferable that the fixed bar and the plurality of main body supporting portions are integrally formed by a single member.

In this case, since the fixed bar and the plurality of main body support parts are composed of a single member, the number of parts of the coating tool can be suppressed to a small number and the assembly is easy. Further, the fixing bar and the plurality of main body supporting portions are not displaced relative to each other, and the coating accuracy is maintained good. Further, it is not necessary to align the fixed bar with the plurality of main body supporting portions, and workability during maintenance is improved.

In the above coating tool, only one fixing part may be provided.

In this case, the number of parts of the coating tool can be reduced.

In the above coating tool, a plurality of the fixing parts may be provided side by side in the second direction.

In this case, the fixing part is prevented from becoming too long in the second direction, the fixing part is easily handled, and the application tool is easy to assemble.

In the coating tool, the moving portion may be configured to have the first portion of the first head member facing the third direction and a portion of an outer surface of the first head member facing the first direction connected to the connecting portion. It is preferably arranged on the rear end side in three directions.

In this case, the moving part is less likely to get in the way when observing the coating part. Therefore, the coated portion is easier to see.

In the above coating tool, it is preferable that the adjusting mechanism has an operating unit that moves the moving unit in the third direction.

In this case, for example, a dial of a micrometer head is used as the operation unit, and the operator can manually operate the operation unit to move the moving unit in the third direction as appropriate. That is, the amount of protrusion of the choke bar into the slot can be appropriately adjusted by operating the operation portion.

In the above coating tool, it is preferable that the adjusting mechanism has a drive unit that drives the moving unit in the third direction.

In this case, for example, a motor of an electric linear actuator or the like is used as the drive unit, and the drive unit can be remotely operated by a control unit or the like electrically connected to the drive unit to appropriately move the moving unit in the third direction. .. That is, the amount of protrusion of the choke bar into the slot can be appropriately adjusted by remote control.

In the coating tool, based on the detection result of the coating film thickness detection means for detecting the film thickness of the coating liquid applied to the object from the slot, the coating film thickness detection means, the film thickness within a predetermined range As described above, it is preferable to include a control unit that causes the drive unit to move the moving unit in the third direction.

In this case, the film thickness of the coating liquid applied to the object to be coated is automatically set within a predetermined range, and the coating accuracy is stably increased.

Further, one aspect of the present invention is a coating method for coating a coating liquid on an object to be coated using the coating tool described above, wherein a plurality of the adjusting mechanisms are provided side by side in the second direction. The thickness detecting means continuously acquires the data at the plurality of positions in the second direction and the data of each of the film thicknesses at the plurality of positions, and the data of the position and the data of the film thickness are transmitted via the network. And collect it in an external server to calculate the value of the difference between the film thickness data and preset reference film thickness data, compare the difference value with a preset threshold value, and calculate the difference When the value exceeds the threshold value, the moving unit of the adjustment mechanism closest to the position where the threshold value is exceeded in the second direction is driven by the driving unit in the third direction to obtain the difference value. The amount of protrusion of the choke bar into the slot is adjusted so that is less than or equal to the threshold value.

According to the coating method of the present invention, the film thickness of the coating liquid applied to the object to be coated is automatically equalized at each position in the second direction, and the coating accuracy is stably enhanced.

According to the coating tool and the coating method of one aspect of the present invention, the installation space can be kept small, the position of the choke bar can be easily adjusted even during coating, and the coated portion can be easily viewed.

It is a top view which shows the coating tool of 1st Embodiment of this invention. It is a side view which shows the coating tool of 1st Embodiment of this invention. FIG. 3 is a sectional view showing a III-III section in FIG. 1. It is sectional drawing which expands and shows the principal part of a coating tool. It is sectional drawing which expands and shows the principal part of a coating tool. It is a top view which shows the coating tool of 2nd Embodiment of this invention. It is a side view which shows the coating tool of 2nd Embodiment of this invention. FIG. 7 is a cross-sectional view showing a VIII-VIII cross section of FIG. 6. It is a top view which shows the coating tool of 3rd Embodiment of this invention. It is a side view which shows some coating tools of 3rd Embodiment of this invention. It is a rear view which shows the coating tool of 3rd Embodiment of this invention. It is a top view which shows the coating tool of 4th Embodiment of this invention. It is a side view which shows some coating tools of 4th Embodiment of this invention. It is a rear view which shows the coating tool of 4th Embodiment of this invention. It is a top view which shows the coating tool of 5th Embodiment of this invention. FIG. 16 is a cross-sectional view showing a XVI-XVI cross section of FIG. 15. It is sectional drawing which expands and shows the principal part of a coating tool.

<First Embodiment>
Hereinafter, the coating tool 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5.
The coating tool 10 of the present embodiment is, for example, a so-called roll-to-roll type slot die that coats a coating liquid on the surface of an object to be coated such as a film or a metal foil.

As shown in FIGS. 1 to 5, a coating tool 10 according to the present embodiment includes a first head member 1, a second head member 2, a shim member (not shown), a positioning block 3, a manifold 4, and The slot 5, the choke bar 6, the adjusting mechanism 7, and the cover 8 are provided.
The first head member 1 and the second head member 2 each have a substantially rectangular plate shape or a substantially rectangular parallelepiped shape. The first head member 1 and the second head member 2 are arranged adjacent to each other with their inner surfaces facing each other.

[Definition of Direction Used in this Embodiment]
In this embodiment, the direction in which the first head member 1 and the second head member 2 face each other is called the first direction. The first head member 1 and the second head member 2 are arranged adjacent to each other in the first direction. In this embodiment, the first direction is the vertical direction. The first direction may be paraphrased as the vertical direction. In each figure, the first direction is the Z-axis direction. Of the first direction, the direction from the second head member 2 to the first head member 1 (one side in the first direction) is called the upper side (+Z side), and the direction from the first head member 1 to the second head member 2 (The other side in the first direction) is called the lower side (-Z side).

Of the directions orthogonal to the first direction, the direction in which the first head member 1 and the second head member 2 extend is called the second direction. That is, the first head member 1 and the second head member 2 extend in the second direction. In the present embodiment, the second direction is the horizontal direction. The second direction may be restated as the left-right direction. In each figure, the second direction is the X-axis direction. One side in the second direction is referred to as the right side (+X side) and the other side in the second direction is referred to as the left side (−X side) when viewed from the operator who operates the operation unit 22 of the adjustment mechanism 7 described later.

The direction orthogonal to the first and second directions is called the third direction. In the present embodiment, the third direction is the horizontal direction. The third direction may be restated as the front-back direction. In each drawing, the third direction is the Y-axis direction. Of the third direction, the direction (one side in the third direction) in which the slot 5 opens toward the object to be coated (not shown) from between the first head member 1 and the second head member 2 is the tip side (+Y side). And the opposite direction (the other side in the third direction) is called the rear end side (−Y side).

[First head member]
The first head member 1 is made of stainless steel, for example.
The first head member 1 includes an inner side surface 1a, an outer side surface 1b, a front end surface 1c, a rear end surface 1d, a left side surface 1e, a right side surface 1f, a first recess 11, a second recess 12, and a shaft. It has a hole 13, a holding plate 14, and a first coating liquid supply path (not shown).

The inner side surface 1 a is a surface of the outer surface of the first head member 1 that faces the second head member 2. The inner side surface 1a is a surface of the first head member 1 that faces the first direction, and faces the lower side. The inner surface 1a has a flat surface shape perpendicular to the first direction.

The outer surface 1b is a surface of the outer surface of the first head member 1 that faces the direction opposite to the second head member 2. The outer side surface 1b is a surface of the first head member 1 that faces the first direction, and faces the upper side. The outer side surface 1b has a flat surface shape perpendicular to the first direction.

The tip surface 1c is a surface of the outer surface of the first head member 1 that faces the third direction, and faces the tip side. The tip surface 1c extends in a third direction while being inclined in the first direction. Specifically, the tip surface 1c is inclined toward the tip side as it goes downward. In the illustrated example, the displacement amount in the third direction per unit length along the first direction at the lower end portion of the tip surface 1c (that is, the inclination with respect to the vertical direction) is greater than the displacement amount in the portion other than the lower end portion. Is also big.

The rear end surface 1d is a surface of the outer surface of the first head member 1 that faces the third direction, and faces the rear end side. The rear end surface 1d has a flat surface shape perpendicular to the third direction.
The left side surface 1e is a surface of the outer surface of the first head member 1 that faces the second direction, and faces the left side. The left side surface 1e has a flat surface shape perpendicular to the second direction.
The right side surface 1f is a surface of the outer surface of the first head member 1 that faces the second direction, and faces the right side. The right side surface 1f has a flat surface shape perpendicular to the second direction.

The first recess 11 has a groove shape that is recessed in the first direction from the inner surface 1a and extends in the second direction. The first recess 11 is recessed upward from the inner surface 1a. In the illustrated example, the length of the first recess 11 in the first direction is longer than the length of the first recess 11 in the third direction. The length of the first recess 11 in the second direction is shorter than the total length of the first head member 1 in the second direction. The first recess 11 does not open on the left side surface 1e and the right side surface 1f of the first head member 1.

The second recess 12 has a groove shape that is recessed from the outer side surface 1b in the first direction and extends in the second direction. The second recess 12 is recessed downward from the outer side surface 1b. In the illustrated example, the length of the second recess 12 in the first direction is shorter than the length of the second recess 12 in the third direction. The second recess 12 opens on the left side surface 1e and the right side surface 1f of the first head member 1.
In the present embodiment, the groove width (length in the third direction) of the first recess 11 is smaller than the groove width of the second recess 12.

A plurality of shaft holes 13 are provided in the first head member 1. The plurality of shaft holes 13 are arranged at intervals in the second direction.
The shaft hole 13 extends in the first direction inside the first head member 1. Both ends of the shaft hole 13 in the first direction open into the first recess 11 and the second recess 12. The lower end of the shaft hole 13 opens into the first recess 11. The upper end of the shaft hole 13 opens into the second recess 12. That is, the first recess 11, the second recess 12, and the shaft hole 13 communicate with each other.
The shaft hole 13 has a small diameter portion 13a, a large diameter portion 13b, and a washer 13c.

The small diameter portion 13a is located in the lower portion of the shaft hole 13. The small diameter portion 13a has a circular hole shape extending in the vertical direction. The lower end of the small diameter portion 13a opens at the groove bottom of the first recess 11.
The large diameter portion 13b is located in the upper portion of the shaft hole 13. The large diameter portion 13b has a circular hole shape extending in the vertical direction. The upper end of the large diameter portion 13b opens to the groove bottom of the second recess 12. The lower end of the large diameter portion 13b is connected to the upper end of the small diameter portion 13a. The inner diameter of the large diameter portion 13b is larger than the inner diameter of the small diameter portion 13a.
The washer 13c is arranged on the bottom surface of the large diameter portion 13b. The washer 13c has a circular ring plate shape with a pair of plate surfaces facing the first direction. In the illustrated example, a plurality of washers 13c are provided in a stacked manner in the first direction.

The pressing plate 14 has a plate shape in which a pair of plate surfaces face the first direction. The holding plate 14 extends in the second direction. The holding plate 14 is arranged at the bottom of the second recess 12. The lower surface of the pair of plate surfaces (upper surface and lower surface) of the holding plate 14 contacts the bottom surface of the second recess 12. The length of the pressing plate 14 in the second direction is shorter than the length of the second recess 12 in the second direction. The holding plate 14 is fixed to the bottom of the second recess 12 by a plurality of bolts 23.
The holding plate 14 has a through hole 14a that penetrates the holding plate 14 in the first direction. The through hole 14a is, for example, a circular hole. A plurality of through holes 14a are provided in the holding plate 14. The plurality of through holes 14a are arranged at intervals in the second direction.

A first coating liquid supply path (not shown) extends inside the first head member 1 and opens to a manifold 4 described later. The first coating liquid supply passage is open to the inner side surface 1a of the first head member 1 and the outer side surface 1b, for example. For example, two first coating liquid supply paths are provided in the first head member 1 and open at both ends of the manifold 4 in the second direction. Although not particularly shown, the first coating liquid supply path is connected to the coating liquid tank via a pump or the like provided outside the coating tool 10.

[Second head member]
The second head member 2 is made of stainless steel, for example. The second head member 2 is fixed to the first head member 1 with a bolt or the like (not shown).
The second head member 2 has an inner side surface 2a, an outer side surface 2b, a front end surface 2c, a rear end surface 2d, a left side surface 2e, a right side surface 2f, and a second coating liquid supply passage 2g.

The inner side surface 2 a is a surface of the outer surface of the second head member 2 that faces the first head member 1. The inner side surface 2a is a surface of the second head member 2 that faces the first direction, and faces the upper side. The inner surface 2a has a flat surface shape perpendicular to the first direction.

The outer surface 2b is a surface of the outer surface of the second head member 2 that faces the direction opposite to the first head member 1. The outer side surface 2b is a surface of the second head member 2 that faces the first direction, and faces the lower side. The outer side surface 2b has a flat surface shape perpendicular to the first direction.

The tip surface 2c is a surface of the outer surface of the second head member 2 that faces the third direction, and faces the tip side. The tip end surface 2c extends in an inclined manner in the third direction as it goes in the first direction. Specifically, the tip surface 2c is inclined toward the tip side as it goes upward. In the illustrated example, the displacement amount in the third direction per unit length along the first direction at the upper end portion of the tip surface 2c (that is, the inclination with respect to the vertical direction) is greater than the displacement amount in the portion other than the upper end portion. Is also big.

The rear end surface 2d is a surface of the outer surface of the second head member 2 that faces the third direction, and faces the rear end side. The rear end surface 2d has a flat surface shape perpendicular to the third direction.
The left side surface 2e is a surface of the outer surface of the second head member 2 that faces the second direction, and faces the left side. The left side surface 2e has a flat surface shape perpendicular to the second direction.
The right side surface 2f is a surface of the outer surface of the second head member 2 that faces the second direction, and faces the right side. The right side surface 2f has a flat surface shape perpendicular to the second direction.

The second coating liquid supply path 2g extends inside the second head member 2 and opens into the manifold 4 described later. The second coating liquid supply passage 2g opens to the inner peripheral surface of the manifold 4 and the rear end surface 2d of the second head member 2. For example, one second coating liquid supply passage 2g is provided in the second head member 2 and opens at the center of the manifold 4 in the second direction. Although not particularly shown, the second coating liquid supply passage 2g is connected to the coating liquid tank via a pump or the like provided outside the coating tool 10.

[Shim member]
The shim member is made of resin, for example.
Although not particularly shown, the shim member has a plate shape in which a pair of plate surfaces face the first direction. The plate thickness of the shim member is, for example, several hundred μm. The plate thickness dimension of the shim member is equal to the opening dimension of the slot 5 described later in the first direction.
The shim member is substantially U-shaped, that is, substantially U-shaped when viewed from the first direction, and has a recess opening toward the tip side. The size of the recess of the shim member in the second direction is equal to the size of the opening of the slot 5 in the second direction (opening width), and is approximately the "application width" when the application tool 10 applies the application liquid to the object to be applied. Is the same.

Although not particularly shown, the shim member has a pair of first portions located on both sides of the manifold 4 and the slot 5 in the second direction, and a second portion located on the rear end side of the manifold 4.
The pair of first portions are located at both ends of the shim member in the second direction. The pair of first portions are arranged on both sides of the recess of the shim member in the second direction. The first portion extends in the third direction.
The second portion is located at the rear end of the shim member. The second portion is arranged on the rear end side of the recess of the shim member. The second portion extends in the second direction.

[Positioning block]
The positioning block 3 positions the first head member 1 and the second head member 2 particularly in the third direction. The positioning block 3 positions the tip of the first head member 1 and the tip of the second head member 2. The positioning block 3 has a plate shape with a pair of plate surfaces facing the third direction, and has a rectangular plate shape in the illustrated example. The positioning block 3 extends in the first direction.

The front surface of the pair of plate surfaces of the positioning block 3 contacts the rear end surface 1d of the first head member 1 and the rear end surface 2d of the second head member 2. The positioning block 3 is fixed to the first head member 1 and the second head member 2 with a bolt or the like (not shown).
A plurality of positioning blocks 3 are provided. The plurality of positioning blocks 3 are arranged at intervals in the second direction.

(Manifold)
The manifold 4 is provided between the first head member 1 and the second head member 2. The manifold 4 is a space (chamber) located between the first head member 1 and the second head member 2, and temporarily holds the coating liquid therein. The coating liquid flows into the manifold 4 from the first coating liquid supply passage (not shown) and the second coating liquid supply passage 2g, and the coating liquid is temporarily held in the manifold 4 and flows out to the slot 5. .. That is, the coating liquid flows inside the manifold 4.

In the present embodiment, the manifold 4 has a groove shape that is recessed in the first direction from the inner side surface 2a of the second head member 2 and extends in the second direction. The manifold 4 is recessed downward from the inner side surface 2a. The length of the manifold 4 in the second direction is shorter than the total length of the second head member 2 in the second direction. The manifold 4 does not open to the left side surface 2e and the right side surface 2f of the second head member 2. As shown in FIG. 3, the manifold 4 has a substantially semicircular shape in a sectional view perpendicular to the second direction.

〔slot〕
The slot 5 is provided between the inner side surface 1a of the first head member 1 and the inner side surface 2a of the second head member 2 which face each other in the first direction. That is, the slot 5 is formed between the inner side surface 1 a of the first head member 1 and the inner side surface 2 a of the second head member 2 which face each other in the first direction. The coating liquid flows inside the slot 5. The slot 5 opens to the outside from between the tip (blade tip) of the first head member 1 and the tip (blade tip) of the second head member 2 in the third direction. The tip portion (opening portion) of the slot 5 is arranged between the tip portion of the first head member 1 and the tip portion of the second head member 2 in the first direction, and opens toward the object to be coated. .. The rear end of the slot 5 communicates with the manifold 4. Both ends of the slot 5 in the second direction are defined by the pair of first portions of the shim member described above.

[Chalk bar]
The choke bar 6 is made of stainless steel, for example. The choke bar 6 extends in the first head member 1 in the second direction and can project into the slot 5 from the first direction. The choke bar 6 projects into the portion of the slot 5 located between the manifold 4 and the tip (opening) of the slot 5 in the third direction. In the illustrated example, the choke bar 6 can project into the slot 5 in the vicinity of the rear end of the slot 5 that is connected to the manifold 4. The choke bar 6 adjusts the flow rate of the coating liquid flowing in the slot 5 from the manifold 4 toward the tip of the slot 5.

The choke bar 6 has a rectangular bar shape extending in the second direction, and one is provided in this embodiment. The length of the choke bar 6 in the second direction is shorter than the total length of the first head member 1 in the second direction. The length of the choke bar 6 in the second direction is substantially the same as the length of the manifold 4 in the second direction and the length of the slot 5 in the second direction. The choke bar 6 is housed in the first recess 11 of the first head member 1. The choke bar 6 faces the inner surface 2a of the second head member 2 with a gap in the first direction.

The choke bar 6 slides in the first recess 11 in the first direction. In the state shown in FIG. 4, the lower surface of the choke bar 6 is arranged at the same position as the inner side surface 1a of the first head member 1 in the first direction. That is, the lower surface of the choke bar 6 and the inner side surface 1a of the first head member 1 are flush with each other. In the state shown in FIG. 5, the lower surface of the choke bar 6 projects below the inner side surface 1a of the first head member 1. When the choke bar 6 moves in the first head member 1 in the first direction, the protrusion amount of the choke bar 6 into the slot 5 changes, and the inner size of the slot 5 in the first direction changes.

[Adjustment mechanism]
The adjustment mechanism 7 moves the choke bar 6 in the first direction with respect to the first head member 1. The adjusting mechanism 7 adjusts the protrusion amount of the choke bar 6 into the slot 5. As shown in FIG. 1, a plurality of adjusting mechanisms 7 are provided side by side in the second direction.
As shown in FIGS. 1 to 5, the adjusting mechanism 7 includes a shaft 15, a seal portion 16, a main body portion 17, a moving portion 18, a cam portion 19, a biasing portion 21, an operating portion 22, and Have.

The shaft 15 is made of stainless steel, for example. The shaft 15 extends in the first direction inside the first head member 1 and is fixed to the choke bar 6. One shaft 15 is provided for each adjusting mechanism 7. Since a plurality of adjusting mechanisms 7 are provided in the coating tool 10, a plurality of shafts 15 are also provided in the coating tool 10. The plurality of shafts 15 are arranged at intervals in the second direction. The shaft 15 is inserted into the shaft hole 13 of the first head member 1. The shaft 15 is movable in the shaft hole 13 in the first direction with respect to the first head member 1.

In the present embodiment, the shaft 15 has a substantially cylindrical shape. The length of the shaft 15 in the first direction is longer than the length of the shaft hole 13 in the first direction. The lower end surface of the shaft 15 contacts the upper surface of the choke bar 6. In the illustrated example, the lower end of the shaft 15 is fixed to the choke bar 6 with a screw. The lower end of the shaft 15 projects from the shaft hole 13 into the first recess 11. The upper end of the shaft 15 projects into the second recess 12 from the shaft hole 13. The upper end of the shaft 15 is inserted into the through hole 14 a of the holding plate 14 and projects above the holding plate 14. In the illustrated example, the upper end portion of the shaft 15 projects above the outer surface 1b of the first head member 1.
As shown in FIG. 4, the shaft 15 has a seal groove 15a, a flange portion 15b, and a roller support portion 15c.

The seal groove 15a is an annular recess that is recessed from the outer peripheral surface of the shaft 15 inward in the radial direction of the shaft 15 and extends around the central axis of the shaft 15 over the entire outer peripheral surface of the shaft 15. The seal groove 15 a is arranged in the lower portion of the shaft 15. The seal groove 15 a faces the inner peripheral surface of the small diameter portion 13 a of the shaft hole 13 in the radial direction of the shaft 15. In the illustrated example, a plurality of seal grooves 15a are provided on the outer peripheral surface of the shaft 15 at intervals in the first direction.

The flange portion 15b is an annular shape that protrudes from the outer peripheral surface of the shaft 15 to the outside in the radial direction of the shaft 15, and extends around the central axis of the shaft 15 over the entire outer peripheral surface of the shaft 15. The collar portion 15b has a circular ring plate shape with a pair of plate surfaces facing the first direction. The collar portion 15 b is arranged on the upper portion of the shaft 15. The flange portion 15 b faces the inner peripheral surface of the large diameter portion 13 b of the shaft hole 13 in the radial direction of the shaft 15. The flange portion 15b has the largest outer diameter in the shaft 15. The upper surface of the collar portion 15b is in contact with the lower surface of the pressing plate 14 so as to be separable.

The roller support portion 15c is arranged at the upper end of the shaft 15. The roller support portion 15c has a substantially U-shape, that is, a substantially U-shape when viewed from the third direction, and has a concave portion that opens upward. A roller (contact portion) 19b of the cam portion 19 described later is arranged in the concave portion of the roller support portion 15c. The roller support portion 15c rotatably supports the roller 19b.

The seal portion 16 is formed of an elastic material such as rubber. The seal portion 16 is annular and extends along the center axis of the shaft 15. The seal part 16 is, for example, an O-ring. A plurality of seal portions 16 are provided on one shaft 15. The plurality of seal portions 16 are arranged at intervals in the first direction. The seal portion 16 is arranged in the seal groove 15a.

The inner peripheral portion of the seal portion 16 contacts the groove bottom of the seal groove 15a. At least one of both ends of the seal portion 16 in the first direction contacts the groove wall of the seal groove 15a. The outer peripheral portion of the seal portion 16 contacts the inner peripheral surface of the small diameter portion 13 a of the shaft hole 13. The seal portion 16 slides in the first direction with respect to the inner peripheral surface of the small diameter portion 13a.

In the present embodiment, a part of the main body part 17, a part of the moving part 18 and the operation part 22 are members constituting, for example, a micrometer head.
The main body 17 is fixed to the first head member 1 by a bolt or the like (not shown). The body portion 17 is provided on the outer surface 1b of the first head member 1. The main body portion 17 is arranged on the outer surface 1b at the rear end side of the second recess 12. The main body portion 17 supports the moving portion 18 so as to be movable in the third direction.
The main body 17 has a micrometer head main body 17a and a mounting bracket 17b.

The micrometer head body 17a has a cylindrical shape or a columnar shape extending in the third direction. The micrometer head body 17a is fixed to the fitting 17b.
The mounting bracket 17b supports the micrometer head body 17a and is fixed to the outer surface 1b of the first head member 1 by a bolt or the like (not shown).

The moving unit 18 is movable in the third direction with respect to the first head member 1. The moving portion 18 is supported by the main body portion 17 so as to be movable in the third direction. As shown in FIG. 3, the moving portion 18 is arranged on the rear end side in the third direction with respect to the connecting portion 1g between the front end surface 1c of the first head member 1 and the outer side surface 1b of the first head member 1. To be done. The connection portion 1g is a corner portion where the tip end surface 1c and the outer surface 1b of the first head member 1 are connected.
As shown in FIG. 4, the moving unit 18 has a micrometer head shaft 18a and a pressing block 18b.

The micrometer head shaft 18a has a shaft shape extending in the third direction. The micrometer head shaft 18a projects from the micrometer head main body 17a toward the tip side. The micrometer head shaft 18a is supported by the micrometer head main body 17a so as to be movable in the third direction.

The pressing block 18b has a substantially rectangular parallelepiped shape. The pressing block 18b is fixed to the micrometer head shaft 18a. The pressing block 18b is connected to the tip of the micrometer head shaft 18a and is located on the tip side of the micrometer head shaft 18a. The pressing block 18b is arranged so as to overlap the shaft 15 and the choke bar 6 when viewed from the first direction.

The cam portion 19 converts the movement amount of the moving portion 18 in the third direction into the movement amount of the shaft 15 in the first direction. Specifically, the cam portion 19 converts the movement amount of the moving portion 18 in the third direction into a movement amount of the shaft 15 in the first direction that is a value smaller than the movement amount.
The cam portion 19 has an inclined surface 19a and a contact portion 19b.

The inclined surface 19a is arranged on the moving portion 18, and extends in the first direction as it goes in the third direction. The inclined surface 19a is arranged on the surface of the pressing block 18b facing the first direction. In this embodiment, the inclined surface 19a is arranged on the lower surface of the pressing block 18b. The inclined surface 19a extends toward the upper side toward the tip side. The amount of displacement of the inclined surface 19a in the first direction per unit length along the third direction (that is, the inclination with respect to the horizontal direction) is constant over the entire length of the inclined surface 19a in the third direction. The inclined surface 19a is a flat surface that is inclined with respect to the third direction.

The contact portion 19b is provided on the shaft 15 and contacts the inclined surface 19a from the first direction. The contact portion 19b is provided on the upper end of the shaft 15. In the present embodiment, the contact portion 19b is a roller that can roll on the inclined surface 19a. The contact portion 19b is rotatably supported by the roller support portion 15c and contacts the inclined surface 19a from below. The rotation center axis of the contact portion 19b extends in the second direction. The contact portion 19b moves in the first direction while rolling on the inclined surface 19a in the third direction.

The biasing portion 21 is an elastic member such as a compression coil spring. The urging portion 21 has a cylindrical shape extending in the first direction, and the shaft 15 is inserted therein. The biasing portion 21 is arranged in the large diameter portion 13b of the shaft hole 13 and expands and contracts in the first direction. The upper end portion of the biasing portion 21 contacts the lower surface of the collar portion 15b. The lower end of the biasing portion 21 contacts the upper surface of the washer 13c.
The urging portion 21 urges the shaft 15 toward either the moving portion 18 or the cam portion 19 in the first direction. In the present embodiment, the urging portion 21 urges the shaft 15 in the first direction toward the pressing block 18b of the moving portion 18 and the inclined surface 19a of the cam portion 19. Specifically, the urging unit 21 urges the shaft 15 upward toward the pressing block 18b and the inclined surface 19a. That is, in this embodiment, the urging portion 21 urges the shaft 15 toward the moving portion 18 and the cam portion 19 in the first direction.

As shown in FIGS. 1 to 3, the operation unit 22 is arranged at the rear end of the micrometer head main body 17a. In the present embodiment, the operation portion 22 is located on the rear end side of the rear end surface 1d of the first head member 1. The operating portion 22 is rotated with respect to a micrometer head center axis (not shown) extending in the third direction with respect to the micrometer head main body 17a. The operation unit 22 is, for example, a dial of a micrometer head or the like.

By rotating the operation unit 22 around the micrometer head center axis with respect to the micrometer head main body 17a, the micrometer head shaft 18a moves in the third direction with respect to the micrometer head main body 17a. That is, the operation unit 22 moves the moving unit 18 in the third direction with respect to the main body unit 17 and the first head member 1. When the operation portion 22 is rotated to one side around the center axis of the micrometer head with respect to the micrometer head main body 17a, the moving portion 18 moves to the tip side in the third direction. When the operation unit 22 is rotated to the other side around the center axis of the micrometer head with respect to the micrometer head main body 17a, the moving unit 18 moves to the rear end side in the third direction.

〔cover〕
As shown in FIG. 2, the cover 8 is detachably attached to the first head member 1. The cover 8 is preferably removable from the first head member 1 even during coating. The cover 8 is, for example, a box-shaped top. The cover 8 covers the moving portion 18, the cam portion 19, the upper end portion of the shaft 15, the second recess 12 and the like of the adjusting mechanism 7 from the upper side in the first direction, both sides in the second direction and both sides in the third direction.

[Operation and effect of the present embodiment]
In the coating tool 10 of the present embodiment described above, as shown in FIGS. 4 and 5, when the moving portion 18 of the adjusting mechanism 7 is moved in the third direction, the cam portion 19 moves the shaft 15 in the first direction. To be made. As a result, the choke bar 6 is moved together with the shaft 15 in the first direction, and the protrusion amount of the choke bar 6 into the slot 5 is adjusted.
According to this embodiment, the adjusting mechanism 7 can be prevented from protruding significantly from the first head member 1 in the first direction. Thereby, the installation space of the coating tool 10 can be kept small in the first direction, and the coating tool 10 can be easily installed. Further, it is easy to adjust the position of the choke bar 6 by moving the moving portion 18 by operating it during coating. Further, the portion (coating portion) to which the coating liquid of the object to be coated is applied can be easily observed even during coating. Specifically, for example, when confirming the coating state at the start of coating or adjusting the coating conditions, the operator can easily see the coating portion through the space above the adjusting mechanism 7.

Further, in the present embodiment, the cam portion 19 converts the movement amount of the moving portion 18 in the third direction into the movement amount of the shaft 15 in the first direction that is a value smaller than the movement amount.
In this case, since the cam portion 19 suppresses the movement amount of the shaft 15 in the first direction smaller than the movement amount of the moving portion 18 in the third direction, the protrusion amount of the choke bar 6 into the slot 5 is made smaller. Easy to adjust.

Further, in this embodiment, the cam portion 19 has the inclined surface 19a and the contact portion 19b, and when the moving portion 18 moves in the third direction, the inclined surface 19a pushes the contact portion 19b in the first direction. Then, the shaft 15 is moved in the first direction together with the contact portion 19b. According to the above configuration, the amount of movement of the shaft 15 in the first direction can be made smaller, and the position of the choke bar 6 can be finely adjusted. Specifically, for example, it is possible to adjust the position of the choke bar 6 on the order of micron (unit of several μm).

Further, in the present embodiment, since the contact portion 19b is a roller that can roll on the inclined surface 19a, the frictional resistance between the contact portion 19b and the inclined surface 19a is reduced, and the function of the cam portion 19 is stabilized.

In the present embodiment, the urging portion 21 maintains the state in which the shaft 15 is urged toward either the moving portion 18 or the cam portion 19, so that the moving portion 18 moves in any of the third directions. Even if it moves, the cam portion 19 functions stably, and the shaft 15 can be moved stably in any of the first directions. That is, by moving the moving portion 18, the choke bar 6 can be moved forward in the slot 5 or retracted from the slot 5. Therefore, it is easy to adjust the position of the choke bar 6. Moreover, since the contact state between the inclined surface 19a and the contact portion 19b is favorably maintained by the urging force of the urging portion 21, rattling (backlash) of the cam portion 19 is suppressed, and the function of the cam portion 19 is suppressed. Is more stable.

Further, in this embodiment, a plurality of adjusting mechanisms 7 are provided side by side in the second direction.
In this case, the plurality of adjusting mechanisms 7 can adjust the protrusion amount of the choke bar 6 into the slot 5 at each position in the second direction. Therefore, the film thickness of the coating liquid applied to the object to be coated can be adjusted at each position of the slot 5 in the second direction.

Further, in the present embodiment, the moving portion 18 is arranged on the rear end side with respect to the connecting portion 1g located at the connecting portion between the front end surface 1c and the outer side surface 1b of the first head member 1.
In this case, the moving part 18 is less likely to get in the way when the operator observes the coating part. Therefore, the coated portion is easier to see.

Further, in the present embodiment, the adjustment mechanism 7 has the operation unit 22 that moves the moving unit 18 in the third direction.
In this case, for example, a dial of a micrometer head or the like is used as the operation unit 22, and the operator can manually operate the operation unit 22 to appropriately move the moving unit 18 in the third direction. That is, the amount of protrusion of the choke bar 6 into the slot 5 can be appropriately adjusted by operating the operation portion 22.

<Second Embodiment>
Next, a coating tool 20 according to a second embodiment of the present invention and a coating method for coating a coating liquid on a coating object using the coating tool 20 will be described with reference to FIGS. 6 to 8. In the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The coating tool 20 according to the present embodiment includes a first head member 1, a second head member 2, a shim member (not shown), a positioning block 3, a manifold 4, a slot 5, a choke bar 6, and an adjustment included in the coating tool 10 described above. In addition to the mechanism 7 and the cover 8, a coating film thickness detection unit (not shown) and a control unit (not shown) are further provided.
Further, the coating tool 20 differs from the coating tool 10 described in the above embodiment in the configuration of the adjusting mechanism 7.

[Adjustment mechanism]
As shown in FIGS. 6 to 8, the adjusting mechanism 7 of the present embodiment includes a shaft 15, a seal portion 16, a main body portion 17, a moving portion 18, a cam portion 19, a biasing portion 21, and a drive portion. And a section 24.
In the present embodiment, a part of the main body part 17, a part of the moving part 18, and the drive part 24 are members that constitute, for example, an electric actuator.

The main body 17 has an actuator main body 17c and a mounting bracket 17b.
The actuator body 17c has a cylindrical shape or a column shape extending in the third direction. The actuator body 17c is fixed to the mounting bracket 17b.
The mounting bracket 17b supports the actuator body 17c and is fixed to the outer surface 1b of the first head member 1 by a bolt or the like (not shown).

The moving unit 18 has an actuator shaft 18c and a pressing block 18b.
The actuator shaft 18c has a shaft shape extending in the third direction. The actuator shaft 18c projects from the actuator body 17c toward the tip side. The actuator shaft 18c is supported by the actuator body 17c so as to be movable in the third direction.
The pressing block 18b is fixed to the actuator shaft 18c. The pressing block 18b is connected to the tip of the actuator shaft 18c and is located on the tip side of the actuator shaft 18c.

The drive unit 24 is arranged inside the actuator body 17c. The drive unit 24 is a linear motion motor such as a servo motor, for example. The drive unit 24 drives the moving unit 18 in the third direction with respect to the main body unit 17 and the first head member 1. The drive unit 24 can drive the moving unit 18 toward the front end side and the rear end side in the third direction.

[Applied film thickness detection means]
Although not particularly shown, the coating film thickness detecting means detects the film thickness of the coating liquid applied to the object to be coated from the slot 5. The coating film thickness detecting means detects the film thickness of each position (a plurality of positions) in the second direction of the coating liquid on the coating object without contacting the coating object coated with the coating liquid.

[Control part]
Although not particularly shown, the control unit is electrically connected to the drive unit 24. The control unit is, for example, a control board or the like. The control unit and the driving unit 24 may be electrically connected via wiring (that is, by wire) or may be electrically connected wirelessly.
The control unit moves the moving unit 18 in the third direction by the driving unit 24 based on the detection result of the coating film thickness detection unit so that the film thickness of the coating liquid applied to the object to be coated falls within a predetermined range. ..

[Coating method]
Next, a coating method for coating the coating liquid on the article using the coating tool 20 of the present embodiment will be described. In addition, also in the coating tool 20 of the present embodiment, a plurality of adjusting mechanisms 7 are provided side by side in the second direction.
In the coating method of the present embodiment, the coating film thickness detecting means continuously acquires data at a plurality of positions in the second direction and data of each film thickness at the plurality of positions, and the position data and the film thickness Data is collected in an external server via a network, a difference value between film thickness data and preset reference film thickness data is calculated, and the difference value is compared with a preset threshold value. When the difference value exceeds the threshold value, the moving unit 18 of the adjusting mechanism 7 closest to the position where the threshold value is exceeded in the second direction is driven in the third direction by the driving unit 24 so that the difference value is equal to or less than the threshold value. The amount of protrusion of the choke bar 6 into the slot 5 is adjusted so that

[Operation and effect of the present embodiment]
According to the coating tool 20 of the present embodiment described above, the same operational effects as those of the above-described embodiment can be obtained.

Further, in the present embodiment, the adjustment mechanism 7 has the drive unit 24 that drives the moving unit 18 in the third direction.
In this case, for example, a motor of an electric linear actuator is used as the drive unit 24, and the drive unit 24 is remotely operated by a control unit or the like electrically connected to the drive unit 24 to appropriately move the moving unit 18 in the third direction. Can be made That is, the amount of protrusion of the choke bar 6 into the slot 5 can be appropriately adjusted by remote control.

Further, since the coating tool 20 of the present embodiment is provided with the coating film thickness detection means and the control unit, the film thickness of the coating liquid applied to the object to be coated is automatically set within the predetermined range, and the coating accuracy is stabilized. Be raised.

Further, according to the coating method using the coating tool 20 of the present embodiment, the film thickness of the coating liquid applied to the object to be coated is automatically equalized at each position in the second direction, and the coating accuracy is stabilized. Be raised.

<Third Embodiment>
Next, a coating tool 30 according to a third embodiment of the present invention will be described with reference to FIGS. 9 to 11. The coating tool 30 of the third embodiment is partially different in configuration from the coating tool 10 described in the first embodiment. In addition, in the present embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 9 to 11, the coating tool 30 of the present embodiment includes a first head member 1, a second head member 2, a shim member (not shown), and a positioning block included in the coating tool 10 of the first embodiment. 3, a manifold 4, a slot 5, a choke bar 6, an adjusting mechanism 7 and a cover 8 (not shown) are further provided with a fixing portion 25.
Further, the coating tool 30 is partially different from the coating tool 10 described in the first embodiment in the configuration of the adjusting mechanism 7. The adjustment mechanism 7 of the present embodiment does not have the mounting member 17b, and the coating tool 30 includes the fixing portion 25 instead of the mounting member 17b.

〔Fixed part〕
The fixing portion 25 fixes the adjusting mechanism 7 to the first head member 1. The fixing portion 25 is provided on the outer surface 1b of the first head member 1 and extends in the second direction. The fixed portion 25 supports each main body portion 17 of the plurality of adjustment mechanisms 7. Specifically, in the present embodiment, the fixing portion 25 fixes the micrometer head main body 17a of each adjusting mechanism 7 to the first head member 1. In this embodiment, only one fixing portion 25 is provided.
The fixing portion 25 includes a fixing bar 25a, a main body portion supporting portion 25b, a fixing screw 25c, and a clamp screw 25d.

The fixed bar 25a is fixed to the first head member 1 and extends in the second direction. The fixed bar 25a has a rectangular plate shape extending in the second direction. The pair of plate surfaces (upper surface and lower surface) of the fixed bar 25a face the first direction. The lower surface of the fixed bar 25a contacts the outer surface 1b of the first head member 1. In the present embodiment, the fixed bar 25a is located on the outer surface 1b on the rear end side of the second recess 12. The fixing bar 25a is fixed to the first head member 1 with a plurality of fixing screws 25c. The plurality of fixing screws 25c are arranged at intervals in the second direction. The length of the fixed bar 25a in the second direction is smaller than the length of the manifold 4 in the second direction and smaller than the opening dimension (opening width) of the slot 5 in the second direction.

A plurality of main body support portions 25b are provided on the fixed bar 25a at intervals in the second direction, and individually support the main body portions 17 of the plurality of adjustment mechanisms 7. The main body supporting portion 25b is provided on the upper surface of the fixed bar 25a. The main body supporting portion 25b projects upward from the upper surface of the fixed bar 25a. In the present embodiment, the fixed bar 25a and the plurality of main body portion support portions 25b are integrally formed by a single member.

As shown in FIG. 11, when viewed from the rear end side of the coating tool 30, the main body supporting portion 25b has a substantially C shape. The main body support 25b has an insertion hole and a slit. The insertion hole penetrates the main body supporting portion 25b in the third direction. In this embodiment, the insertion hole is a circular hole. The main body 17 is inserted into the insertion hole. The tip portion of the main body portion 17 is arranged inside the insertion hole. The slit is open to the side surface (the right side surface in the present embodiment) of the main body supporting portion 25b facing the second direction and the insertion hole. Thereby, the main body support portion 25b can be elastically deformed so as to change the inner diameter of the insertion hole.

The clamp screw 25d is provided on each main body support 25b. The clamp screw 25d extends in the first direction over the upper portion and the lower portion of the slit of the main body supporting portion 25b. By tightening the clamp screw 25d, the main body supporting portion 25b is elastically deformed and the inner diameter of the insertion hole is narrowed. Thereby, the main body portion 17 is fixed to the main body portion supporting portion 25b. Further, by loosening the clamp screw 25d, the main body supporting portion 25b is restored and deformed, and the inner diameter of the insertion hole is returned to the original size. As a result, the state in which the main body portion 17 is fixed to the main body portion supporting portion 25b is released.

[Operation and effect of the present embodiment]
According to the coating tool 30 of the present embodiment described above, the same effects as those of the above-described embodiment can be obtained.

In addition, in the present embodiment, each main body portion 17 of the plurality of adjustment mechanisms 7 is supported by the fixed portion 25, and the plurality of adjustment mechanisms 7 and the fixed portion 25 are unitized. By fixing this unit to the first head member 1, the coating tool 30 can be easily assembled. Further, this unit can be easily removed from the coating tool 30 or replaced, and the time required for maintenance can be reduced. Therefore, the time for which the operation of the coating tool 30 is stopped for maintenance or the like can be suppressed to a short time, and the coating efficiency (production efficiency) is improved. In addition, it is possible to easily perform zero point alignment (position alignment) of the plurality of unitized adjustment mechanisms 7, and it is possible to accurately control the amount of protrusion of the choke bar 6 into the slot 5 and to apply the coating. The accuracy is stable and improved.

Further, in the present embodiment, the fixing portion 25 has a fixing bar 25a and a plurality of main body portion supporting portions 25b. In this case, the effect of the fixing portion 25 described above can be obtained with a simple structure.

Further, in the present embodiment, since the fixing bar 25a and the plurality of main body part supporting portions 25b are composed of a single member, the number of parts of the coating tool 30 can be reduced and the assembling is easy. Further, the fixed bar 25a and the plurality of main body part supporting portions 25b do not move relative to each other, and the coating accuracy is kept good. Further, it is not necessary to align the fixed bar 25a with the plurality of main body supporting portions 25b, and workability during maintenance is improved.

In addition, in the present embodiment, since only one fixing portion 25 is provided, the number of parts of the coating tool 30 can be suppressed to be small.

<Fourth Embodiment>
Next, a coating tool 40 according to a fourth embodiment of the present invention will be described with reference to FIGS. 12 to 14. The coating tool 40 of the fourth embodiment is partially different in configuration from the coating tool 20 described in the second embodiment. In addition, in the present embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 12 to 14, the coating tool 40 of the present embodiment includes a first head member 1, a second head member 2, a shim member (not shown), and a positioning block included in the coating tool 20 of the second embodiment. 3, a manifold 4, a slot 5, a choke bar 6, an adjusting mechanism 7, a cover 8 (not shown), a coating film thickness detecting means (not shown), and a controller (not shown) are further provided with a fixing portion 25.
Further, the coating tool 40 is partially different from the coating tool 20 described in the second embodiment in the configuration of the adjusting mechanism 7. The adjusting mechanism 7 of the present embodiment does not have the mounting member 17b, and the coating tool 40 includes the fixing portion 25 instead of the mounting member 17b.
In the present embodiment, the fixing portion 25 fixes the actuator body 17c of each adjusting mechanism 7 to the first head member 1.

[Operation and effect of the present embodiment]
According to the coating tool 40 of the present embodiment described above, the same effects as those of the above-described embodiment can be obtained.

<Fifth Embodiment>
Next, a coating tool 50 according to a fifth embodiment of the present invention will be described with reference to FIGS. The coating tool 50 of the fifth embodiment is partially different in configuration from the coating tool 40 described in the fourth embodiment. In addition, in the present embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 15 to 17, the coating tool 50 of the present embodiment includes a first head member 1, a second head member 2, a shim member (not shown), and a positioning block included in the coating tool 40 of the fourth embodiment. 3, a manifold 4, a slot 5, a choke bar 6, an adjusting mechanism 7, a cover 8 (not shown), a coating film thickness detecting means (not shown), a control unit (not shown), and a fixing unit 25. Note that the positioning block 3 is not shown in FIG.
The coating tool 50 differs from the coating tool 40 described in the fourth embodiment in part of the configuration of the fixing portion 25 and in part of the configuration of the adjusting mechanism 7.

〔Fixed part〕
In this embodiment, the fixing portion 25 includes a fixing bar 25a, a main body portion supporting portion 25b, a fixing screw 25c, a clamp screw 25d, a shaft supporting portion 25e, and a bolt member 25f.

The shaft support 25e is connected to the end of the fixed bar 25a on the tip side in the third direction. The shaft support 25e is fixed to the fixed bar 25a by a bolt member 25f. In the present embodiment, the bolt member 25f extends in the first direction. The shaft support 25e projects toward the tip side from the end surface of the fixed bar 25a that faces the tip side. The tip of the shaft support 25e is located above the second recess 12. That is, the tip end portion of the shaft support portion 25e is disposed so as to overlap the second recess 12 when viewed in the first direction, that is, the vertical direction. The tip end portion of the shaft support portion 25e has a U-shape that opens toward the tip end side in the third direction when viewed from the first direction. The shaft support 25e has a pair of arms 25g arranged at the tip of the shaft support 25e. The pair of arm portions 25g are arranged at intervals in the second direction. The lower surface of the portion other than the tip portion of the shaft supporting portion 25e contacts the outer surface 1b of the first head member 1.
A plurality of shaft supporting portions 25e are provided at intervals in the second direction. The number of shaft support portions 25e is the same as the number of shafts 15.

[Adjustment mechanism]
In the present embodiment, the shaft 15 of the adjusting mechanism 7 does not have the roller support portion 15c. The collar portion 15b is screwed to the shaft 15. Therefore, by rotating the collar portion 15 b around the central axis of the shaft 15 with respect to the shaft 15, the collar portion 15 b can adjust the vertical position with respect to the shaft 15. A portion of the shaft 15 located above the flange portion 15b, that is, an upper end portion has a substantially columnar shape extending in the first direction. The upper end surface of the shaft 15 has a flat surface shape perpendicular to the first direction.

In this embodiment, the moving part 18 of the adjusting mechanism 7 does not have the pressing block 18b. The tip end surface of the actuator shaft 18c has a flat surface shape perpendicular to the third direction.

In the present embodiment, the cam portion 19 of the adjusting mechanism 7 has a rotating shaft 19c and a rotating member 19d instead of having the inclined surface 19a and the roller (contact portion) 19b.
The rotating shaft 19c has a shaft shape extending in the second direction. Both ends of the rotating shaft 19c are supported by a pair of arms 25g of the shaft support 25e.

The rotating member 19d has a plate shape, and a pair of plate surfaces face the second direction. The rotating member 19d has a portion located between the pair of arm portions 25g and attached to the rotating shaft 19c. The rotating member 19d is rotatable around the central axis C of the rotating shaft 19c.
The rotating member 19d has a first contact portion 19e and a second contact portion 19f.

The first contact portion 19e constitutes a part of the outer surface of the rotating member 19d. In the present embodiment, the first contact portion 19e is arranged on the upper end portion of the rotating member 19d and faces the rear end side in the third direction. The first contact portion 19e is located above the central axis C of the rotating shaft 19c. The first contact portion 19e is located on the rear end side in the third direction with respect to the central axis C. The first contact portion 19e has a convex curved surface shape that is convex toward the rear end side in the third direction. The first contact portion 19e contacts the tip surface of the actuator shaft 18c. That is, the first contact portion 19e contacts the moving portion 18 in the third direction. The first contact portion 19e is pressed by the moving portion 18 toward the tip end side by the movement portion 18 moving toward the tip end side in the third direction.

The second contact portion 19f constitutes a part of the outer surface of the rotating member 19d. In the present embodiment, the second contact portion 19f is arranged at the lower end portion of the rotating member 19d and faces downward in the first direction. The second contact portion 19f is located closer to the tip side in the third direction than the central axis C of the rotating shaft 19c. The second contact portion 19f is located below the central axis C. The second contact portion 19f has a convex curved surface shape that is convex downward in the first direction. The second contact portion 19f contacts the upper end surface of the shaft 15. That is, the second contact portion 19f contacts the shaft 15 in the first direction. When the moving portion 18 presses the first contact portion 19e toward the tip side in the third direction, the rotating member 19d rotates about the central axis C of the rotating shaft 19c, whereby the second contact portion 19f becomes The shaft 15 is pressed downward in the first direction.

Also in the present embodiment, the cam portion 19 converts the movement amount of the moving portion 18 in the third direction into the movement amount of the shaft 15 in the first direction.
As shown in FIG. 17, in a sectional view perpendicular to the central axis C of the rotating shaft 19c, a contact point (hereinafter, referred to as a first contact point) where the first contact portion 19e and the moving portion 18 contact each other, and a central axis C The distance between the second contact portion 19f and the contact point where the shaft 15 contacts (hereinafter referred to as the second contact point) is different from the distance between the central axis C.
Specifically, in this embodiment, the distance between the second contact and the central axis C is smaller than the distance between the first contact and the central axis C. Therefore, the cam portion 19 converts the moving amount of the moving portion 18 in the third direction into a moving amount of the shaft 15 in the first direction that is a value smaller than the moving amount.

In this embodiment, the biasing portion 21 of the adjusting mechanism 7 biases the shaft 15 toward the cam portion 19 in the first direction. Specifically, the urging portion 21 urges the shaft 15 upward toward the second contact portion 19f of the cam portion 19.

[Operation and effect of the present embodiment]
According to the coating tool 50 of the present embodiment described above, the same operational effects as those of the above-described embodiment can be obtained.
Specifically, when the moving portion 18 moves in the third direction and pushes the first contact portion 19e of the rotating member 19d, the rotating member 19d is rotated around the rotating shaft 19c. As a result, the second contact portion 19f of the rotating member 19d pushes the shaft 15 in the first direction, and the protrusion amount of the choke bar 6 into the slot 5 is adjusted. While the cam portion 19 has a simple structure, the movement amount of the moving portion 18 in the third direction is stably converted by the cam portion 19 into the movement amount of the shaft 15 in the first direction.

In addition, in the present embodiment, the distance between the first contact point and the central axis C and the distance between the second contact point and the central axis C are appropriately set to move the moving portion 18 in the third direction. The ratio between the amount and the amount of movement of the shaft 15 in the first direction according to this amount of movement can be adjusted.

Further, in the present embodiment, the cam portion 19 is connected to the fixed portion 25, and these are unitized. Therefore, by attaching/detaching this unit to/from the first head member 1, the assemblability of the coating tool 50 is enhanced. Or, maintenance can be performed efficiently.

[Other configurations included in the present invention]
It should be noted that the present invention is not limited to the above-described embodiment, and as described below, for example, the configuration can be changed without departing from the spirit of the present invention.

In the above-described embodiment, the slot 5 is opened to the outside in the horizontal direction, but the third direction in which the slot 5 is opened is not limited to the horizontal direction. The third direction may be, for example, the vertical direction. In this case, the installation space for the coating tools 10, 20, 30, 40, 50 can be kept small in the horizontal direction.

In the above embodiment, one choke bar 6 is provided, but the number is not limited to this. A plurality of choke bars 6 may be provided. In this case, the plurality of choke bars 6 are arranged in the first recess 11 adjacent to each other in the second direction. Each choke bar 6 may be individually fixed to the shaft 15 of each adjusting mechanism 7.

In the first to fourth embodiments described above, the contact portion 19b of the cam portion 19 is a roller, but the contact portion 19b is not limited to this. The contact portion 19b may be, for example, a sliding member that can slide on the inclined surface 19a. However, when the contact portion 19b is a roller, the frictional resistance between the inclined surface 19a and the contact portion 19b can be significantly reduced, which is more preferable.

In the above-described embodiment, the manifold 4 has a groove shape that is recessed in the first direction from the inner side surface 2a of the second head member 2 and extends in the second direction, but is not limited thereto. The manifold 4 may have a groove shape that is recessed in the first direction from the inner surface 1 a of the first head member 1 and extends in the second direction. In this case, the manifold 4 is recessed upward from the inner surface 1a.
The manifold 4 has a first groove portion that is recessed upward from the inner side surface 1 a of the first head member 1 and extends in the second direction, and a second groove portion that is recessed downward from the inner side surface 2 a of the second head member 2 and extends in the second direction. And a groove portion. The first groove portion and the second groove portion face each other in the first direction and communicate with each other. In this case, the manifold 4 is formed, for example, in a generally circular shape as a whole in a cross-sectional view perpendicular to the second direction.

Further, in the above-described third to fifth embodiments, an example in which only one fixing portion 25 is provided is given, but the present invention is not limited to this. A plurality of fixing parts 25 may be provided side by side in the second direction. In this case, the fixing portion 25 is prevented from becoming too long in the second direction, the fixing portion 25 is easily handled, and the application tools 30, 40, 50 are easily assembled.

In addition, in the fifth embodiment described above, the example in which the shaft support portion 25e is fixed by the fixing bar 25a and the bolt member 25f has been described, but the present invention is not limited to this. The shaft support portion 25e may be integrally formed with the fixed bar 25a and the main body portion support portion 25b by a single member. In this case, since the fixing bar 25a, the plurality of main body supporting portions 25b, and the plurality of shaft supporting portions 25e are configured by a single member, the number of parts of the coating tool 50 can be suppressed to be small and the assembling is easy. .. Further, the fixing bar 25a, the plurality of main body portion supporting portions 25b, and the plurality of shaft supporting portions 25e are not displaced relative to each other, and the coating accuracy is maintained good. Further, it is not necessary to align the fixed bar 25a, the plurality of main body support portions 25b, and the plurality of shaft support portions 25e with each other, and workability at the time of assembly or maintenance is improved.

In addition, the configurations (constituent elements) described in the above-described embodiments, modifications, and notes may be combined without departing from the spirit of the present invention, and addition, omission, replacement of the configuration, other It can be changed. The present invention is not limited to the above-described embodiments, but is limited only by the claims.

According to the coating tool and the coating method of the present invention, the installation space can be kept small, the position of the choke bar can be easily adjusted even during coating, and the coated portion can be easily viewed. Therefore, it has industrial applicability.

1 1st head member 1a, 2a inner side surface 1b outer side surface 1c tip surface 1g connection part 2 second head member 5 slot 6 choke bar 7 adjusting mechanism 10, 20, 30, 40, 50 coating tool 15 shaft 17 body part 18 movement Part 19 Cam part 19a Inclined surface 19b Contact part (roller)
19c Rotating shaft 19d Rotating member 19e First contact portion 19f Second contact portion 21 Energizing portion 22 Operating portion 24 Driving portion 25 Fixing portion 25a Fixing bar 25b Main body supporting portion C Central axis of the rotating shaft

Claims (17)

1. A first head member and a second head member which are arranged adjacent to each other in a first direction and extend in a second direction orthogonal to the first direction;
   The coating liquid is provided between the inner side surface of the first head member and the inner side surface of the second head member facing each other in the first direction, and the coating liquid flows inside the first head member and in the first direction and the second direction. A slot opening to the outside from between the tip of the first head member and the tip of the second head member in a third direction orthogonal to each other;
   A choke bar extending in the second direction in the first head member and projecting into the slot from the first direction;
   An adjusting mechanism for adjusting the amount of protrusion of the choke bar into the slot,
   The adjustment mechanism is
   A shaft extending in the first direction in the first head member and fixed to the choke bar;
   A moving unit movable in the third direction with respect to the first head member;
   A cam part that converts the amount of movement of the moving part in the third direction into the amount of movement of the shaft in the first direction.
2. The coating tool according to claim 1, wherein the cam portion converts a movement amount of the moving portion in the third direction into a movement amount of the shaft in the first direction that is smaller than the movement amount.
3. The cam portion is
   An inclined surface that is arranged in the moving portion and extends toward the first direction as it goes toward the third direction;
   The coating tool according to claim 1 or 2, further comprising: a contact portion that is provided on the shaft and that contacts the inclined surface from the first direction.
4. The coating tool according to claim 3, wherein the contact portion is a roller that can roll on the inclined surface.
5. The cam portion is
   A rotating shaft extending in the second direction,
   A rotating member rotatable about the central axis of the rotating shaft,
   The rotating member is
   A first contact portion that contacts the moving portion in the third direction;
   The 2nd contact part which contacts the said shaft in the said 1st direction, The coating tool of Claim 1 or 2.
6. The coating tool according to any one of claims 1 to 5, wherein the adjusting mechanism has a biasing portion that biases the shaft toward the moving portion or the cam portion in the first direction.
7. The coating tool according to any one of claims 1 to 6, wherein a plurality of the adjusting mechanisms are provided side by side in the second direction.
8. A fixing portion for fixing the adjusting mechanism to the first head member,
   The adjustment mechanism has a main body portion that supports the moving portion so as to be movable in the third direction,
   The coating tool according to claim 7, wherein the fixing portion extends in the second direction and supports each of the main body portions of the plurality of adjusting mechanisms.
9. The fixed portion is
   A fixing bar fixed to the first head member and extending in the second direction;
   The application tool according to claim 8, further comprising: a plurality of main body support portions that are provided on the fixed bar at intervals in the second direction and individually support the main body portions of the plurality of adjustment mechanisms.
10. The coating tool according to claim 9, wherein the fixing bar and the plurality of main body supporting portions are integrally formed by a single member.
11. The coating tool according to any one of claims 8 to 10, wherein only one fixing portion is provided.
12. The coating tool according to any one of claims 8 to 10, wherein a plurality of the fixing portions are provided side by side in the second direction.
13. The moving portion has a rear end in the third direction with respect to a connecting portion between a tip surface of the first head member facing the third direction and an outer surface of the first head member facing the first direction. The coating tool according to any one of claims 1 to 12, which is arranged on the side.
14. The coating tool according to any one of claims 1 to 13, wherein the adjusting mechanism has an operation unit that moves the moving unit in the third direction.
15. The coating tool according to any one of claims 1 to 13, wherein the adjusting mechanism has a drive unit that drives the moving unit in the third direction.
16. Coating film thickness detecting means for detecting the film thickness of the coating liquid applied to the object to be coated from the slot,
    The control unit that moves the moving unit in the third direction by the driving unit so that the film thickness falls within a predetermined range based on the detection result of the coating film thickness detection unit. Application tool.
17. A coating method for coating a coating liquid on an object using the coating tool according to claim 16.
    A plurality of the adjustment mechanisms are arranged side by side in the second direction,
    The coating film thickness detecting means continuously acquires data at a plurality of positions in the second direction, and data on each film thickness at the plurality of positions,
    The data of the position and the data of the film thickness are collected in an external server via a network,
    The value of the difference between the data of the film thickness and the data of the preset reference film thickness is calculated, and the value of the difference is compared with a preset threshold value,
    When the value of the difference exceeds the threshold value, the moving unit of the adjustment mechanism closest to the position where the threshold value is exceeded in the second direction is driven in the third direction by the driving unit, A coating method for adjusting the amount of protrusion of the choke bar into the slot so that the difference value is equal to or less than the threshold value.

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