JP2023144252A - Coating tool - Google Patents

Abstract

To provide a coating tool which can reduce an external dimension in a longitudinal direction while including a mechanism for adjusting a coating width.SOLUTION: A coating tool includes: a pair of head members 11, 12 which extend in a first direction and face each other in a second direction; a manifold 20; a slot 21 which is open between the tips of the pair of head members 11, 12 in a third direction; a plug part 41 disposed within the manifold 20; a shim part 42 disposed within the slot 21; and a coating width adjustment mechanism 50 which moves the plug part 41 and the shim part 42 in the first direction. One head member 11 of the pair of head members 11, 12 has an elongated hole 14 which penetrates through the head member 11 in the second direction to be open in the manifold 20 and extends in the first direction. The coating width adjustment mechanism 50 has: a support pillar 51 which is inserted into the elongated hole 14 and connected to the plug part 41; and a bracket 52 fixed to the support pillar 51. The bracket 52 may move in the first direction.SELECTED DRAWING: Figure 2

Description

FIELD OF THE INVENTION The present invention relates to a coating tool.

As a conventional coating tool, the one described in Patent Document 1, for example, is known. The coating tool of Patent Document 1 includes a pair of head members extending in the longitudinal direction, a manifold located between the inner surfaces of the pair of head members and extending in the longitudinal direction, and in which a coating liquid is stored, and a pair of heads. A slot located between the inner surfaces of the members and extending in the longitudinal direction, communicating with the manifold, and opening between the tips of the pair of head members; and a slot located inside the manifold and the slot and moving in the longitudinal direction. It has a flexible inner deckle and a linear motion mechanism using a ball screw or sliding screw (trapezoidal screw) to move the inner deckle in the longitudinal direction.
In an inner deckle type coating tool such as that disclosed in Patent Document 1, by moving the inner deckle in the longitudinal direction using a linear motion mechanism, the application width of the coating liquid can be adjusted without disassembling the coating tool.

Japanese Patent Application Publication No. 2013-188735

However, in conventional coating tools, the linear motion mechanism for longitudinally moving the inner deckle protrudes largely from the head member in the longitudinal direction. For this reason, the external dimensions of the coating tool in the longitudinal direction become large, which tends to limit the installation space and may make it difficult to mount the coating tool in a coating device. Furthermore, if an attempt is made to ensure a wide adjustment range for the coating width, the external dimensions of the coating tool in the longitudinal direction will also increase accordingly, making the above problem more pronounced.

One of the objects of the present invention is to provide a coating tool that is equipped with a mechanism for adjusting the coating width and whose external dimensions in the longitudinal direction can be kept small.

One aspect of the coating tool of the present invention is a pair of head members extending in a first direction and facing each other in a second direction perpendicular to the first direction, and located between inner surfaces of the pair of head members. a manifold that extends in the first direction and has a coating liquid stored therein; and a manifold that is located between the inner surfaces of the pair of head members and extends in the first direction and communicates with the manifold in the first direction. and a slot that opens between the distal ends of the pair of head members in a third direction perpendicular to the second direction, a plug portion that is disposed within the manifold and is movable in the first direction, and a plug portion that is disposed within the manifold and is movable in the first direction; a shim part that is disposed in the head member and is movable in the first direction together with the plug part; and a coating width adjustment mechanism that moves the plug part and the shim part in the first direction; One of the head members has a long hole that penetrates the head member in the second direction, opens into the manifold, and extends in the first direction, and the coating width adjustment mechanism is inserted into the long hole. and a support column connected to the stopper, and a bracket fixed to the support support, and the bracket is movable in the first direction.

In the application tool of the present invention, by moving the bracket in the first direction (hereinafter sometimes referred to as the longitudinal direction) along the elongated hole, the plug part and the shim part connected to the bracket via the support can be moved. It can be moved longitudinally. Thereby, the coating width of the coating liquid can be adjusted without disassembling the coating tool.

According to the present invention, when adjusting the coating width, there is no need to make a coating width adjusting member (linear motion mechanism) protrude from the head member in the longitudinal direction as in the conventional case. Therefore, it is possible to appropriately change the coating width while keeping the external dimensions of the coating tool small. As a result, dimensional restrictions and the like when mounting the coating tool on a coating device can be suppressed, and ease of installation of the coating tool, that is, versatility, can be improved.

In addition, for example, when an operator manually adjusts the application width, in order to adjust the application width at both ends of the tool in the longitudinal direction, conventionally, the operator manually adjusts the application width at both ends of the tool in the longitudinal direction. However, with the present invention, the distance traveled for adjustment can be kept small. Therefore, the operability of coating width adjustment is improved.

As described above, according to the present invention, although a mechanism for adjusting the coating width is provided, the external dimensions in the longitudinal direction can be kept small. This also improves the versatility and operability of the coating tool.

In the coating tool, the bracket has a female threaded hole passing through the bracket in the first direction, and the coating width adjustment mechanism has a male thread extending in the first direction and screwed into the female threaded hole. It is preferable to further include a shaft and a drive unit that rotates the male threaded shaft around a central axis of the male threaded shaft.

In this case, by rotating the male threaded shaft around the central axis by the drive unit, the bracket that is threaded onto the male threaded shaft moves in the first direction. Thereby, the positions of the plug part and the shim part can be adjusted with high precision by the amount of rotation of the male threaded shaft. Fine adjustment of coating width can be performed with high precision and adjustment is easy. Therefore, the coating width can be controlled more freely and precisely.

In the coating tool, the drive section may be an electric motor.

By using an electric motor as the drive unit as in the above configuration, the male threaded shaft can be rotated more efficiently and stably. Thereby, the coating width can be adjusted more quickly and easily.

In the application tool, the drive section may be a working tool connected to the male threaded shaft.

By using a working tool as the drive unit as in the above configuration, the configuration of the coating tool is simplified. While the effects of the present invention described above can be obtained, manufacturing costs, maintenance costs, etc. of the coating tool can be reduced.

In the coating tool, one of the head members has a housing groove that is recessed from a side surface of the head member in the second direction and extends in the first direction, and the elongated hole is opened at a bottom surface of the housing groove. Preferably, the bracket is housed in the housing groove.

In this case, since the bracket is accommodated in the housing groove of the head member, the bracket is prevented from protruding from the head member in the second direction. Therefore, the dimensions of the coating tool in the second direction can be kept small. As a result, dimensional restrictions and the like when mounting the coating tool on the coating apparatus are further suppressed, and the degree of freedom in installing the coating tool is increased.

In the coating tool, it is preferable that the coating width adjustment mechanism further includes a sealing member that is provided between the bracket and the support column and covers a part of the elongated hole from the second direction.

In this case, since a part of the long hole is covered by the sealing member, leakage of the coating liquid through the long hole can be suppressed.

When viewed from the second direction, the application tool is provided on a cover member overlapping with the seal member, a fixing member that fixes the cover member to the head member, and the cover member, and is provided on the cover member so that the seal member overlaps with the first It is preferable to further include a pressing member that is movable in the direction and presses from the second direction.

In this case, the seal member is movable in the first direction while being pressed from the second direction by the pressing member. Therefore, when the bracket is moved in the first direction, the sealing performance of the sealing member can be maintained well regardless of the position of the bracket. Therefore, leakage of the coating liquid from the long holes can be suppressed more stably.

According to the coating tool of the above aspect of the present invention, although it is provided with a mechanism for adjusting the coating width, the external dimension in the longitudinal direction can be kept small.

FIG. 1 is a front view showing a part (left side part) of the coating tool of this embodiment. FIG. 2 is a sectional view taken along the line II-II in FIG. FIG. 3 is a sectional view taken along the line III--III in FIG.

A coating tool 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Note that in this embodiment, the coating tool 1 may be simply referred to as a tool or the like. The coating tool 1 of this embodiment is a so-called inner deckle type slot die that can adjust the coating width W of a coating liquid onto an object (not shown) without disassembling the constituent members of the tool.

As shown in FIGS. 1 and 2, the coating tool 1 includes a pair of head members 10, a manifold 20, a slot 21, a side plate 30, an inner deckle 40, a coating width adjustment mechanism 50, and a pressing mechanism. 60.
Further, the pair of head members 10 includes one head member 11 and the other head member 12. In this embodiment, one head member 11 may be called the first head member 11, and the other head member 12 may be called the second head member 12.

The pair of head members 10 each have a substantially rectangular plate shape or a substantially rectangular parallelepiped shape, and extend in a predetermined direction. The pair of head members 10 are arranged adjacent to each other with their inner surfaces (first inner surface 11a and second inner surface 12a) facing each other.

[Definition of direction]
In this embodiment, the direction in which the pair of head members 10 extend is referred to as a first direction. That is, the pair of head members 10 extend in the first direction. Therefore, the first direction may also be referred to as the longitudinal direction (head longitudinal direction). In this embodiment, the first direction is the horizontal direction. In the XYZ orthogonal coordinate system shown in each figure, the first direction corresponds to the X-axis direction. Further, the first direction may also be referred to as the left-right direction. In this case, one side (-X side) of the first direction is called the left side, and the other side (+X side) is called the right side. Note that in FIG. 1, only the left side portion of the coating tool 1 is shown, and illustration of the right side portion is omitted.

Also, in the first direction, the direction from both ends of the head to the center of the head is called the inside of the first direction (that is, the center side), and the direction from the center of the head to both ends of the head is called the outside of the first direction. It is sometimes called.

Among the directions orthogonal to the first direction (X-axis direction), the direction in which the pair of head members 10 face each other is referred to as a second direction. In this embodiment, the second direction is the horizontal direction. The pair of head members 10 are arranged adjacent to each other in the second direction. The second direction corresponds to the thickness direction of the head member 10. In each figure, the second direction corresponds to the Y-axis direction.

The second direction (Y-axis direction) may also be referred to as the front-back direction. In this case, among the second directions, the direction from one head member 11 to the other head member 12 (+Y side) is called the back side or rear, and the direction from the other head member 12 to one head member 11 ( -Y side) is called the near side or front side. Further, the second direction may also be referred to as the thickness direction.

A direction perpendicular to the first direction (X-axis direction) and the second direction (Y-axis direction) is called a third direction. In this embodiment, the third direction is the vertical direction. The third direction may also be referred to as the up-down direction. In each figure, the third direction corresponds to the Z-axis direction.

Of the third direction (Z-axis direction), the direction (+Z side) in which the slot 21 opens from between the pair of head members 10 toward the object to be coated (not shown) is called the tip side or upper side. The opposite direction (-Z side) is called the rear end side or lower side.

In this embodiment, upper side, lower side, front side, rear side, left side, and right side are simply names for explaining the relative positional relationship of each part, and the actual positional relationship etc. is the layout indicated by these names. It may be a placement relationship other than the relationship.

[Head member]
The head member 10 is made of metal, specifically, for example, stainless steel. The pair of head members 10 are fixed to each other by a fastening member (not shown) such as a bolt. As shown in FIGS. 2 and 3, of the pair of head members 10, the first head member 11 located on the near side (-Y side) has a housing groove 13. The accommodation groove 13 is a space for accommodating a bracket 52 of a coating width adjustment mechanism 50, which will be described later.

The accommodation groove 13 is recessed from the front-facing side surface (first outer surface) of the first head member 11 toward the back side (+Y side). That is, the accommodation groove 13 is recessed from the side surface of the first head member 11 in the second direction. The accommodation groove 13 extends in the first direction (X-axis direction). The accommodation groove 13 has a substantially rectangular cross-sectional shape when viewed from the first direction. The dimension of the accommodation groove 13 in the first direction is the same as the dimension of the head member 10 in the first direction. That is, the housing groove 13 is provided to penetrate the first head member 11 in the first direction.

As shown in FIG. 1, a long hole 14 is formed in a portion of the housing groove 13 that includes the end in the first direction (X-axis direction). That is, one of the head members 11 of the pair of head members 10 has the elongated hole 14 . The long hole 14 has a slit shape extending in the first direction. An outer end (one end) of the elongated hole 14 in the first direction opens into an end surface 17 of the first head member 11 facing outward in the first direction. The inner end (other end) of the elongated hole 14 in the first direction is arranged in a portion of the first head member 11 between the head center portion in the first direction and the end surface 17 .
A pair of elongated holes 14 are provided at both ends of the first head member 11 in the first direction. In addition, in FIG. 1, only one (left side) of the pair of long holes 14 is illustrated.

As shown in FIG. 2, the elongated hole 14 opens into a bottom surface 15 facing the front side of the housing groove 13 and a first inner surface 11a facing the back side of the first head member 11. The elongated hole 14 penetrates the first head member 11 in the second direction and opens into the manifold 20 . A column 51 of a coating width adjustment mechanism 50, which will be described later, is inserted into the long hole 14.

Furthermore, a pair of stepped portions 16 are formed at the opening on the front side (-Y side) of the accommodation groove 13. The pair of step portions 16 are arranged at both ends of the accommodation groove 13 in the third direction (Z-axis direction). The step portion 16 has a substantially rectangular cross-sectional shape perpendicular to the first direction. As shown in FIG. 3, the step portion 16 accommodates and attaches a cover member 61 of a pressing mechanism 60, which will be described later.

[Manifold]
As shown in FIG. 2, the manifold 20 is located between the inner surfaces (first inner surface 11a, second inner surface 12a) of the pair of head members 10 and extends in the first direction (X-axis direction). The coating liquid is stored in. The manifold 20 is a chamber (space) that temporarily holds a coating liquid inside the coating tool 1 . In this embodiment, the manifold 20 is arranged on the second head member 12 of the pair of head members 10. The manifold 20 has a groove shape that is recessed toward the back from the second inner surface 12a facing the front side of the second head member 12 and extends in the first direction. The manifold 20 has a semicircular cross section perpendicular to the first direction.

In this embodiment, the manifold 20 is provided to penetrate the second head member 12 in the first direction (X-axis direction). The manifold 20 opens at a left end surface (end surface) 17 facing the left side (-X side) of the second head member 12 and a right end surface (end surface) (not shown) facing the right side (+X side) of the second head member 12. That is, in this embodiment, the length of the manifold 20 in the first direction is the same as the length of the second head member 12 in the first direction.

A coating liquid flows into the manifold 20 from a coating liquid supply path (not shown), and this coating liquid is temporarily held within the manifold 20 and flows out to the slots 21 . That is, the coating liquid flows inside the manifold 20.

〔slot〕
The slot 21 is located between the inner surfaces (first inner surface 11 a, second inner surface 12 a) of the pair of head members 10 , extends in the first direction, and communicates with the manifold 20 . The slot 21 is arranged on the tip side (+Z side) of the manifold 20. Slot 21 is located adjacent to manifold 20.

The slot 21 extends in the third direction (Z-axis direction) from between the first tip 11b, which is the tip of the first head member 11, and the second tip 12b, which is the tip of the second head member 12. Opens outward toward the tip. That is, the slot 21 opens between the distal ends (first distal end 11b, second distal end 12b) of the pair of head members 10 in the third direction. The slot opening 18 located at the tip of the slot 21 is arranged between the first tip 11b of the first head member 11 and the second tip 12b of the second head member 12 in the second direction. A rear end (-Z side) end of the slot 21 is connected to the manifold 20.

In this embodiment, the length of the slot 21 in the first direction is equal to the length of each head member 10 in the first direction. The slot 21 opens at both end surfaces 17 of the head member 10 facing in the first direction. A coating liquid flows into the slot 21 from the manifold 20, and this coating liquid flows out from the slot opening 18 toward the object to be coated (not shown) on the tip side. In other words, the coating liquid flows inside the slot 21 .

[Side plate]
The side plate 30 is made of metal, specifically, for example, stainless steel. A pair of side plates 30 are provided at both ends of the head member 10 in the first direction. In addition, in FIG. 1, only one side plate 30 (left side) of the pair of side plates 30 is illustrated.

Each side plate 30 is fixed to the pair of head members 10 with bolts or the like (not shown). The side plate 30 has a plate shape, and a pair of plate surfaces face in the first direction.

The pair of side plates 30 close both ends of the manifold 20 in the first direction from both outsides in the first direction. Further, the pair of side plates 30 close both ends of the slot 21 in the first direction from both outsides in the first direction. Further, the pair of side plates 30 close both ends of the housing groove 13 in the first direction from both outsides in the first direction. Further, the side plate 30 closes the outer end (one end) of the elongated hole 14 in the first direction from the outside in the first direction.

[Inner deckle]
The inner deckle 40 is made of resin or metal, for example. As shown in FIG. 2, the inner deckle 40 has a plug part 41 and a shim part 42. That is, the coating tool 1 includes a plug part 41 and a shim part 42. In this embodiment, a pair of inner deckles 40, that is, a pair of plug portions 41 and shim portions 42 are provided on one side (left side) and the other side (right side) of the coating tool 1 in the first direction. It will be done. Note that in FIG. 1, only one (left side) of the pair of inner deckles 40 is illustrated.

As shown in FIG. 2, the plug portion 41 is arranged within the manifold 20. As shown in FIG. The plug portion 41 is movable inside the manifold 20 in the first direction. The plug portion 41 of this embodiment has a semi-cylindrical shape extending in the first direction. The plug portion 41 has a convex curved surface 41a that forms part of the outer circumferential surface of the plug portion 41, and a rectangular plane 41b that forms another portion of the outer peripheral surface of the plug portion 41.

The curved surface 41a is slidably in contact with the inner peripheral surface of the manifold 20 (manifold inner peripheral surface 20a). The rectangular plane 41b is in slidable contact with the first inner surface 11a of the first head member 11.

The plug portion 41 seals the internal space 22 of the manifold 20 from the first direction. In other words, the plug portion 41 liquid-tightly partitions the internal space 22 of the manifold 20 in the first direction. As shown in FIG. 1, the plug part 41 divides the internal space 22 of the manifold 20 into a part where the coating liquid is stored (coating liquid storage part 22a) and a part where the coating liquid is not stored (the coating liquid It is divided into a non-reservoir portion 22b) and a non-storage portion 22b). Therefore, by moving the plug portion 41 in the first direction, the length of the coating liquid storage portion 22a of the manifold 20 in the first direction changes.

The shim portion 42 has a plate shape, specifically, a rectangular plate shape. As shown in FIG. 2, a pair of plate surfaces (first plate surface 42a, second plate surface 42b) of the shim portion 42 face in the second direction (Y-axis direction). Shim portion 42 is disposed within slot 21 . The first plate surface 42a and the second plate surface 42b of the shim portion 42 are in slidable contact with a pair of wall surfaces of the slot 21 facing in the second direction. Specifically, the first plate surface 42a is in slidable contact with the first inner surface 11a of the first head member 11. The second plate surface 42b is in slidable contact with the second inner surface 12a of the second head member 12.

The shim portion 42 is arranged on the tip side (+Z side) of the plug portion 41. The shim portion 42 is connected to the plug portion 41. For example, the shim portion 42 and the plug portion 41 may be constructed by assembling separate members together using a fastening member such as a bolt, or may be integrally formed from a single member. The shim portion 42 is movable inside the slot 21 in the first direction. That is, the shim portion 42 is movable in the first direction together with the plug portion 41.

The shim portion 42 seals the internal space of the slot 21 from the first direction. In other words, the shim portion 42 liquid-tightly partitions the internal space of the slot 21 in the first direction. As shown in FIG. 1, the shim part 42 divides the internal space of the slot 21 into a part where the coating liquid flows (coating liquid flowing part 21a) and a part where the coating liquid does not flow (the coating liquid does not flow) in the first direction. It is divided into a section 21b). Therefore, by moving the shim portion 42 in the first direction, the length of the coating liquid distribution portion 21a of the slot 21 in the first direction changes.

In this way, by moving the inner deckle 40 in the first direction (X-axis direction) with respect to the head member 10, the coating is applied from the tip of the slot 21 (slot opening 18) to the object to be coated (not shown). The coating length of the coating liquid in the first direction, that is, the coating width W changes.

[Application width adjustment mechanism]
The application width adjustment mechanism 50 moves the plug part 41 and the shim part 42, that is, the inner deckle 40, in the first direction. By adjusting the position of the inner deckle 40 in the first direction by the coating width adjustment mechanism 50, the coating tool 1 adjusts the coating dimension, that is, the coating width W in the first direction of the coating liquid on the object to be coated (not shown). It is possible.

In this embodiment, a pair of coating width adjustment mechanisms 50 are provided on one side (left side) and the other side (right side) of the coating tool 1 in the first direction. Therefore, compared to the case where the coating tool 1 is provided with only one coating width adjustment mechanism 50, a larger adjustment margin for the coating width W is secured. Note that in FIG. 1, only one (left side) of the pair of coating width adjustment mechanisms 50 is illustrated.

As shown in FIGS. 1 and 2, the coating width adjustment mechanism 50 includes a column 51, a column seal packing 59, a bracket 52, a male threaded shaft 53, a first support member 54, and a second support member 55. , a drive section 56, and a seal member 57. As will be described later, in this embodiment, among the constituent members of the application width adjustment mechanism 50, all members other than the support column 51 are accommodated in the accommodation groove 13.

The support column 51 has a columnar shape that projects from the rectangular plane 41b of the plug portion 41 in the second direction. The support column 51 is inserted into the elongated hole 14 and connected to the plug part 41. The cross-sectional shape of the support column 51 is any shape selected from polygons such as rectangles, circles, ellipses, and the like. The dimension of the support column 51 in the third direction (Z-axis direction) is slightly smaller than the dimension of the long hole 14 in the third direction. The support column 51 is movable in the first direction along the elongated hole 14.

The strut seal packing 59 is attached to the end surface of the strut 51 facing outward in the first direction. The strut seal packing 59 is in slidable contact with the inner surface of the elongated hole 14 . The strut seal packing 59 liquid-tightly seals the space between the strut 51 and the elongated hole 14 .

A bracket 52 is fixed to the front end (−Y side) of the support 51 via a seal member 57, which will be described later. That is, the bracket 52 is fixed to the support column 51. As shown in FIG. 1, in this embodiment, the bracket 52 has a rectangular shape when viewed from the second direction. The bracket 52 is accommodated in the accommodation groove 13. As shown in FIG. 2, when viewed from the first direction, the bracket 52 is disposed on the back side (+Y side) of the opening (step part 16) of the housing groove 13, and on the front side (+Y side) of the housing groove 13. -Y side) does not protrude.
The bracket 52 has a female screw hole 52a that passes through the bracket 52 in the first direction (X-axis direction). A female screw is provided on the inner peripheral surface of the female screw hole 52a.

The male screw shaft 53 has a rod shape or a shaft shape extending in the first direction. A male screw is provided on the outer peripheral surface of the male screw shaft 53. The male screw of the male screw shaft 53 and the female screw of the female screw hole 52a are screwed together. That is, the male screw shaft 53 is screwed into the female screw hole 52a. The male screw shaft 53 is, for example, a ball screw. However, the present invention is not limited thereto, and the male screw shaft 53 may be a sliding screw such as a trapezoidal screw, for example. The male threaded shaft 53 is accommodated in the accommodation groove 13 . The dimension of the male screw shaft 53 in the first direction is larger than the dimension of the long hole 14 in the first direction.

As shown in FIG. 1, both ends of the male threaded shaft 53 in the first direction are supported by a first support member 54 and a second support member 55. Specifically, the outer end (left side in FIG. 1) of the male threaded shaft 53 in the first direction is supported by the first support member 54 so as to be rotatable around the central axis C of the male threaded shaft 53. There is. The first support member 54 is arranged at the outer (left side) end of the housing groove 13 in the first direction. The first support member 54 is accommodated in the accommodation groove 13 . As shown in FIG. 1, the first support member 54 overlaps with the outer (left side) end of the long hole 14 in the first direction when viewed from the second direction (Y-axis direction). The first support member 54 is fixed to the bottom surface 15 of the housing groove 13 by screwing or the like.

The inner end (right side in FIG. 1) of the male threaded shaft 53 in the first direction is supported by the second support member 55 so as to be rotatable around the central axis C of the male threaded shaft 53. The second support member 55 is arranged in a portion of the housing groove 13 that is inside (on the right side) of the elongated hole 14 in the first direction. The second support member 55 is accommodated in the accommodation groove 13 . The second support member 55 is fixed to the bottom surface 15 of the housing groove 13 by screwing or the like.

The drive unit 56 is connected to the end of the male threaded shaft 53 in the first direction, for example, via a coupling structure, a ratchet structure, or the like. In this embodiment, the drive unit 56 is connected to the inner end (right side in FIG. 1) of the male threaded shaft 53 in the first direction. The drive unit 56 is, for example, an electric motor 58. The drive portion 56 is accommodated in the accommodation groove 13 .

The drive unit 56 is rotated by electric power supplied from the outside, thereby applying a rotational force around the central axis C to the male threaded shaft 53. That is, the drive unit 56 rotates the male threaded shaft 53 around the central axis C of the male threaded shaft 53. When the male threaded shaft 53 rotates, the bracket 52 screwed onto the male threaded shaft 53 moves outward or inward (left side or right side) in the first direction depending on the direction of rotation around the central axis C. That is, the bracket 52 is movable in the first direction.

When the bracket 52 moves in the first direction, the inner deckle 40 connected to the bracket 52 via the support 51 moves in the first direction. That is, the application width W of the application liquid is adjusted by driving the drive unit 56. In this embodiment, the inner deckle 40 moves in the first direction within a movement range M shown in FIG. The movement range M corresponds to, for example, the length in the first direction of the elongated hole 14 that opens in the accommodation groove 13.

As shown in FIGS. 1 and 2, the seal member 57 is provided between the bracket 52 and the support column 51, and covers a part of the elongated hole 14 from the second direction. Specifically, the sealing member 57 covers a part of the opening of the elongated hole 14 to the bottom surface 15 in the first direction from the near side (-Y side) in the second direction. The seal member 57 is fixed to the support column 51 and the bracket 52. The seal member 57 is accommodated in the accommodation groove 13 . The sealing member 57 is arranged on the bottom surface 15 of the receiving groove 13.

The dimension of the seal member 57 in the first direction is larger than the dimension of the long hole 14 opening in the accommodation groove 13 in the first direction, that is, the dimension of the movement range M. Specifically, when the seal member 57 moves to the outer end in the first direction together with the bracket 52, that is, when the left end of the seal member 57 reaches the left end of the moving range M shown in FIG. The right end of the member 57 is arranged on the right side (inner side in the first direction) of the right end of the long hole 14 . Therefore, the part of the elongated hole 14 that is located inside the inner deckle 40 in the first direction (on the right side in FIG. 1) is always , is covered and sealed from the front side (−Y side) in the second direction by the sealing member 57.

The seal member 57 includes a packing 57a and a liquid leakage prevention plate 57b.
The packing 57a has a plate shape, and a pair of plate surfaces face in the second direction. The packing 57a is made of resin, for example. The packing 57a is in liquid-tight contact with the bottom surface 15 of the housing groove 13. The packing 57a is slidable on the bottom surface 15 in the first direction. In this embodiment, the packing 57a is arranged on the bottom surface 15 of the housing groove 13 over substantially the entire length in the third direction (Z-axis direction).

The liquid leak prevention plate 57b has a plate shape, and a pair of plate surfaces face in the second direction. The liquid leakage prevention plate 57b is made of metal, for example. The liquid leakage prevention plate 57b is arranged on the front side (-Y side) of the packing 57a. The packing 57a and the liquid leakage prevention plate 57b are stacked in the second direction. A bracket 52 is fixed to the front-facing surface of the liquid leakage prevention plate 57b with bolts 57c. The seal member 57 is movable in the first direction together with the bracket 52.

[Press mechanism]
As shown in FIGS. 1 and 3, the pressing mechanism 60 presses the seal member 57 in the second direction. Specifically, the pressing mechanism 60 presses the seal member 57 toward the bottom surface 15 and the elongated hole 14 toward the back side (+Y side). The pressing mechanism 60 presses the sealing member 57 against the opening of the elongated hole 14, thereby causing the sealing member 57 to seal this opening.

In this embodiment, a pair of pressing mechanisms 60 are provided on one side (left side) and the other side (right side) of the coating tool 1 in the first direction. Note that in FIG. 1, only one (left side) of the pair of pressing mechanisms 60 is illustrated.

As shown in FIGS. 1 and 3, the pressing mechanism 60 includes a cover member 61, a fixing member 62, and a pressing member 63. That is, the coating tool 1 further includes a cover member 61, a fixing member 62, and a pressing member 63. Each member of the pressing mechanism 60 is accommodated in the accommodation groove 13. Therefore, it may be said in other words that the first head member 11 includes the cover member 61, the fixing member 62, and the pressing member 63.

The cover member 61 has a plate shape that extends in a direction perpendicular to the second direction. The cover member 61 is disposed in the accommodation groove 13 on the front side (-Y side) of the male threaded shaft 53. In other words, at least a portion of the male threaded shaft 53 is covered by the cover member 61 from the front side.

In this embodiment, the cover member 61 is attached to the stepped portion 16 of the housing groove 13 . Specifically, both ends of the cover member 61 in the third direction (Z-axis direction) are arranged at the pair of stepped portions 16 . The thickness dimension (dimension in the second direction) of the cover member 61 is equal to or less than the dimension in the second direction of the stepped portion 16 . Therefore, the cover member 61 does not protrude further toward the front than the first outer surface of the first head member 11 facing toward the front.

As shown in FIG. 1, the cover member 61 overlaps the seal member 57 when viewed from the second direction. In this embodiment, one (left side) pressing mechanism 60 of the pair of pressing mechanisms 60 and the other (right side) pressing mechanism 60 (not shown) each have a plurality of cover members 61. The plurality of cover members 61 are arranged side by side with each other in the first direction (X-axis direction).

As shown in FIGS. 1 and 3, the fixing member 62 fixes the cover member 61 to the first head member 11. As shown in FIGS. The fixing member 62 is, for example, a bolt. In this embodiment, the fixing member 62 detachably fixes the cover member 61 to the first head member 11 . A plurality of fixing members 62 are provided.

Further, the first head member 11 has a bolt hole 64 into which the fixing member 62 is screwed. The bolt hole 64 opens in the bottom surface facing the front side (-Y side) of the stepped portion 16 and extends in the second direction (Y-axis direction). A plurality of bolt holes 64 are provided. The plurality of bolt holes 64 are arranged at intervals in the first direction (X-axis direction). In this embodiment, the plurality of bolt holes 64 are arranged at equal pitches in the first direction. The bolt holes 64 are provided in each of the pair of stepped portions 16 .

A predetermined bolt hole 64 can be selected from among the plurality of bolt holes 64 arranged in the first direction, and the fixing member 62 inserted into the insertion hole of the cover member 61 can be screwed. Thereby, the fixing position of the cover member 61 in the first direction can be changed as appropriate. That is, in this embodiment, the position where the cover member 61 is fixed to the first head member 11 is adjustable in the first direction.

The pressing member 63 is provided on the cover member 61 and protrudes from the cover member 61 toward the back side (+Y side) in the second direction. As shown in FIG. 3, the pressing member 63 is, for example, a ball roller 65. The ball roller 65 has a main body portion 65a and a roller portion 65b.

The main body portion 65a is fixed to the cover member 61 by screws or the like. The main body portion 65a extends in the second direction (Y-axis direction). The roller portion 65b is provided at the tip of the main body portion 65a, that is, at the end on the back side (+Y side). The roller portion 65b has a spherical shape. The roller portion 65b is rotatably held at the tip of the main body portion 65a. The roller portion 65b is biased toward the back side by a biasing member such as a spring (not shown) provided inside the main body portion 65a. The roller portion 65b contacts the liquid leakage prevention plate 57b of the seal member 57 from the front side and presses the seal member 57 toward the back side.

A plurality of pressing members 63 are provided. The plurality of pressing members 63 are arranged at intervals in the third direction (Z-axis direction). Further, as shown in FIG. 1, the plurality of pressing members 63 are arranged at intervals from each other also in the first direction (X-axis direction). In the example of this embodiment, one cover member 61 is provided with a total of four pressing members 63.

When the seal member 57 moves in the first direction together with the bracket 52, the roller part 65b rotates, allowing the seal member 57 to move in the first direction, while the roller part 65b moves the seal member 57 from the front side. The pressed state will be maintained. That is, the pressing member 63 presses the sealing member 57 from the second direction while being movable in the first direction.

By adjusting the attachment position of the cover member 61 in the first direction as described above, the position of the pressing mechanism 60 in the first direction can be adjusted. The pressing mechanism 60 can change its position in the first direction in accordance with, for example, adjusting the positions of the bracket 52 and the inner deckle 40 in the first direction.

[Operations and effects of this embodiment]
In the coating tool 1 of this embodiment described above, the inner deckle 40 is connected to the bracket 52 via the support 51 by moving the bracket 52 in the first direction (longitudinal direction) along the elongated hole 14; That is, the plug part 41 and the shim part 42 can be moved in the longitudinal direction. Thereby, the coating width W of the coating liquid can be adjusted without disassembling the coating tool 1.

According to the present embodiment, when adjusting the coating width W, there is no need to make a coating width adjusting member (linear motion mechanism) protrude from the head member in the longitudinal direction as in the conventional case. Therefore, it is possible to appropriately change the coating width W while keeping the external dimensions of the coating tool 1 small. As a result, dimensional restrictions and the like when mounting the coating tool 1 on a coating device (not shown) can be suppressed, and ease of installation, that is, versatility of the coating tool 1 can be improved.

As described above, according to the coating tool 1 of the present embodiment, although the coating width adjustment mechanism 50 for adjusting the coating width W is provided, the external dimension in the longitudinal direction of the tool can be kept small. The versatility of the coating tool 1 can be increased and the operability can be improved.

Further, in this embodiment, the application width adjustment mechanism 50 includes a male threaded shaft 53 that is screwed into the female threaded hole 52a of the bracket 52, and a drive unit 56 that rotates the male threaded shaft 53 around the central axis C.
In this case, by rotating the male threaded shaft 53 around the central axis C by the drive unit 56, the bracket 52 screwed onto the male threaded shaft 53 moves in the first direction. Thereby, the positions of the plug part 41 and the shim part 42 can be adjusted with high precision by the amount of rotation of the male threaded shaft 53. Fine adjustment of the coating width W can be performed with high precision, and adjustment is easy. Therefore, the coating width W can be controlled more freely and precisely.

Further, in this embodiment, the drive unit 56 is an electric motor 58.
By using the electric motor 58 as the drive unit 56 as in the above configuration, the male threaded shaft 53 can be rotated more efficiently and stably. Thereby, the coating width W can be adjusted more quickly and easily.

Furthermore, in this embodiment, since the bracket 52 and the like of the application width adjustment mechanism 50 are accommodated in the housing groove 13 of the first head member 11, the bracket 52 and the like protrude from the first head member 11 in the second direction. Things can be suppressed. Therefore, the dimensions of the coating tool 1 in the second direction can be kept small. As a result, dimensional restrictions and the like when mounting the coating tool 1 on a coating device (not shown) are further suppressed, and the degree of freedom in installing the coating tool 1 is increased.

Further, in this embodiment, the coating width adjustment mechanism 50 includes a sealing member 57 that is provided between the bracket 52 and the support column 51 and covers a part of the elongated hole 14 from the second direction.
In this case, since a part of the long hole 14 is covered by the sealing member 57, leakage of the coating liquid through the long hole 14 can be suppressed.

Further, in this embodiment, the coating tool 1 includes a cover member 61 , a fixing member 62 , and a pressing member 63 , that is, the coating tool 1 includes the pressing mechanism 60 .
In this case, the seal member 57 is movable in the first direction while being pressed from the second direction by the pressing member 63. Therefore, when the bracket 52 is moved in the first direction, the sealing performance of the seal member 57 can be maintained well regardless of the position of the bracket 52. Therefore, leakage of the coating liquid from the long holes 14 can be suppressed more stably.

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

In the embodiment described above, the set of the elongated hole 14, the inner deckle 40, the coating width adjustment mechanism 50, and the pressing mechanism 60 is arranged on one side (left side) and the other side (right side) of the coating tool 1 in the first direction. ), but the explanation is not limited to this. The coating tool 1 may be provided with only one set.

In the embodiment described above, an example in which the electric motor 58 is used as the drive unit 56 has been described, but the present invention is not limited to this. The drive unit 56 may be a working tool (not shown) connected to the male threaded shaft 53. This working tool, for example, is removably engaged with the end of the male threaded shaft 53.
By using a working tool as the drive unit 56 as in the above configuration, the configuration of the coating tool 1 is simplified. The manufacturing cost, maintenance cost, etc. of the coating tool 1 can be reduced while the effects of the present invention described above are obtained.

Further, in this case, the operator must manually adjust the coating width W. In the past, in order to adjust the coating width at both longitudinal ends of the tool, the operator had to move from one side to the other in the longitudinal direction of the dispensing tool (in other words, the distance traveled was long). According to the present invention, the travel distance for adjustment can be kept small. Therefore, the operability of coating width adjustment is improved.

Further, it is also possible to adopt a configuration in which the application width adjustment mechanism 50 does not include the drive section 56 and the male threaded shaft 53. In this case, for example, the operator may grasp an operation knob (not shown) of the bracket 52 by hand or the like and move the inner deckle 40 together with the bracket 52 in the first direction in accordance with a scale display (not shown) extending in the first direction. You can also use it as
According to the above configuration, while making it possible to adjust the coating width W, the configuration of the coating tool 1 is further simplified, and manufacturing costs and maintenance costs can be further reduced.

In the embodiment described above, the manifold 20 is recessed from the second inner surface 12a of the second head member 12 toward the back side (+Y side) and has a groove shape extending in the first direction, but the present invention is not limited to this. .
Although not particularly illustrated, the manifold 20 may be in the form of a groove that is recessed from the first inner surface 11a of the first head member 11 toward the front side (-Y side) and extends in the first direction.
Alternatively, the manifold 20 has a first groove portion recessed toward the front side from the first inner surface 11 a of the first head member 11 and extending in the first direction, and a first groove portion recessed toward the rear side from the second inner surface 12 a of the second head member 12 . and a second groove extending in the direction. The first groove portion and the second groove portion face each other in the second direction and communicate with each other. In this case, the manifold 20 becomes a columnar chamber (space) extending in the first direction, and the cross section perpendicular to the first direction has a circular shape. Furthermore, the plug portion 41 disposed within the manifold 20 has a cylindrical shape extending in the first direction.

The present invention may combine the configurations (component elements) described in the above-described embodiments and modifications without departing from the spirit of the present invention, and addition, omission, substitution, and other changes of configurations may be implemented. is possible. Further, the present invention is not limited by the embodiments described above, but is limited only by the scope of the claims.

According to the coating tool of the present invention, although it is provided with a mechanism for adjusting the coating width, the external dimension in the longitudinal direction can be kept small. Therefore, it has industrial applicability.

1... Coating tool 10... Head member 11... First head member (one head member)
11a...first inner surface (inner surface of one head member)
12...Second head member (other head member)
12a...Second inner surface (inner surface of the other head member)
13... Accommodation groove 14... Elongated hole 15... Bottom surface 20... Manifold 21... Slot 40... Inner deckle 41... Plug part 42... Shim part 50... Coating width adjustment mechanism 51... Support column 52... Bracket 52a... Female screw hole 53... Male Screw shaft 56... Drive unit 57... Seal member 58... Electric motor 60... Pressing mechanism 61... Cover member 62... Fixing member 63... Pressing member C... Center axis of male screw shaft W... Application width

Claims (7)

a pair of head members extending in a first direction and facing each other in a second direction orthogonal to the first direction;
a manifold located between the inner surfaces of the pair of head members, extending in the first direction, and storing a coating liquid therein;
The pair of head members is located between the inner surfaces of the pair of head members, extends in the first direction, communicates with the manifold, and extends in the third direction perpendicular to the first direction and the second direction. a slot opening between the tips;
a plug disposed within the manifold and movable in the first direction;
a shim portion disposed within the slot and movable in the first direction together with the plug portion;
a coating width adjustment mechanism that moves the plug part and the shim part in the first direction,
One of the pair of head members has a long hole that penetrates the head member in the second direction, opens into the manifold, and extends in the first direction;
The coating width adjustment mechanism is
a strut inserted into the elongated hole and connected to the plug part;
a bracket fixed to the support;
the bracket is movable in the first direction;
Application tool. The bracket has a female screw hole passing through the bracket in the first direction,
The coating width adjustment mechanism is
a male threaded shaft extending in the first direction and threaded into the female threaded hole;
further comprising a drive unit that rotates the male threaded shaft around a central axis of the male threaded shaft;
The coating tool according to claim 1. the drive unit is an electric motor;
The coating tool according to claim 2. The drive unit is a working tool connected to the male threaded shaft,
The coating tool according to claim 2. One of the head members has a housing groove recessed from a side surface of the head member in the second direction and extending in the first direction,
The elongated hole opens at the bottom of the accommodation groove,
the bracket is accommodated in the accommodation groove;
The coating tool according to any one of claims 1 to 4. The coating width adjustment mechanism further includes a sealing member provided between the bracket and the support column and covering a part of the elongated hole from the second direction.
The coating tool according to any one of claims 1 to 5. a cover member that overlaps the seal member when viewed from the second direction;
a fixing member that fixes the cover member to the head member;
further comprising a pressing member provided on the cover member to press the sealing member from the second direction while making it movable in the first direction;
The coating tool according to claim 6.

Images