JP6927845B2 - Coating equipment - Google Patents

Description

The present invention relates to a coating device for applying a coating liquid to a web.

Conventionally, a coating device has been proposed in which a die is installed below a backup roll that conveys a web, and a coating liquid is discharged from the upper end of the die to coat the web.

Tokuhei No. 5-23836

The die in the coating apparatus is composed of a first main body and a second main body, and the first main body is provided with a liquid reservoir portion in the left-right direction. A shim is sandwiched between the first main body and the second main body in order to position the coated portion on the web.

However, since the coating state on the web changes depending on the height of the shim, there is a problem that setting the height of the shim is troublesome.

Therefore, in view of the above problems, an object of the present invention is to provide a coating device capable of easily adjusting the height of the shim.

According to the present invention, in a coating apparatus having a backup roll on which a web runs on a lower peripheral surface and a die arranged below the backup roll, the die has a first main body, a second main body, and a shim. The shim has a shape corresponding to the lower peripheral portion, the left peripheral portion, and the right peripheral portion of the liquid reservoir portion, and the liquid reservoir portion is provided on the front surface of the first main body. The front surface and the rear surface of the second main body are fixed via the shim, and a shim adjusting means for adjusting the height of the shim sandwiched between the first main body and the second main body is provided . A coating device in which a base portion protrudes from the lower portion of the first main body, a space is formed between the base portion and the second main body, and the shim adjusting means is provided in the space and the base portion. ..

According to the present invention, the height of the shim can be easily adjusted by the shim adjusting means.

It is explanatory drawing of the coating apparatus which shows one Embodiment of this invention. It is a front view of a coating device. FIG. 2 is a cross-sectional view taken along the line AA in FIG. FIG. 2 is a cross-sectional view taken along the line BB in FIG. It is an enlarged vertical sectional view seen from the front of an adjustment part and a dial gauge. It is an enlarged vertical cross-sectional view seen from the side of the adjustment part and the dial gauge, and the shim is raised. It is an enlarged vertical cross-sectional view seen from the side of the adjusting part and the dial gauge, and the shim is in a lowered state. It is a front view of a shim.

Hereinafter, the web W coating device 10 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 8. Examples of the long web W include a film, a metal plate, a mesh-like metal, paper, and cloth.

(1) Overall Configuration of Coating Device 10 The overall configuration of the coating apparatus 10 will be described with reference to FIGS. 1, 3, and 4. The coating device 10 has a backup roll 12 and a die 14.

As shown in FIG. 1, the backup roll 12 rotates in the counterclockwise direction, and the web W runs in the front-rear direction (from left to right in FIG. 1) on the lower peripheral surface thereof.

As shown in FIG. 1, the die 14 is provided below the backup roll 12. The die 14 has a first main body 16 and a second main body 18 as shown in FIGS. 3 and 4. The first main body 16 is a rectangular parallelepiped extending in the left-right direction, and a plate-shaped base 20 projects forward from the lower front surface. The first inclined inclined surface 22 is formed from the upper end portion of the front surface of the first main body 16 toward the upper end portion of the rear surface. The front surface of the first main body 16 is a vertical surface, and liquid reservoirs 24 are formed in the left-right direction.

As shown in FIGS. 3 and 4, the second main body 18 is arranged in front of the first main body 16, that is, above the base 20, is a rectangular parallelepiped extending in the left-right direction, and has vertical dimensions. It is formed smaller than the first main body 16. A second inclined surface 26 is formed from the upper end of the front surface of the second main body 18 toward the upper end of the rear surface.

As shown in FIGS. 3 and 4, a plate-shaped shim 28 is sandwiched between the front surface of the first main body 16 and the rear surface of the second main body 18. As shown in FIG. 8, the shim 28 is formed of the left peripheral portion 30, the right peripheral portion 32, and the lower peripheral portion 34 of the liquid reservoir portion 24 shown in FIG.

As shown in FIGS. 3 and 4, the fastening bolts 36 and 38 integrally fix the first main body 16, the second main body 18, and the shim 28. When the first main body 16 and the second main body 18 are combined, the first inclined surface 22 and the second inclined surface 26 are formed in a triangular shape as shown in FIGS. 3 and 4, and the tip portion thereof is backed up. It is located below the roll 12. The tips of the first main body 16 and the second main body 18 are formed in a square shape in a vertical cross section, so that the coating liquid can be easily applied. Further, a coating passage 40 is formed above the liquid reservoir 24 and between the first main body 16 and the second main body 18. The upper end of the coating passage 40 is a slit-shaped discharge port 42 for the coating liquid, and the left and right portions of the coating passage 40 are closed by the left peripheral portion 30 and the right peripheral portion 32 of the shim 28 shown in FIG. ing. A plurality of fastening bolts 38 penetrate the lower peripheral portion 34 of the shim 28 shown in FIG. 8, but are formed to be slightly larger than the fastening bolt 38 so that the shim 28 can move up and down. Further, a space 44 is formed between the second main body 18 and the base 20.

A coating liquid supply port 46 is opened at the center of the liquid reservoir 24 of the first main body 16 in the left-right direction, and a hose 48 from the coating pump is connected to the opening.

(2) Mounting Structure of Die 14 Next, the mounting structure of the die 14 will be described with reference to FIGS. 2 and 4.

As shown in FIG. 2, a pair of left and right fixing portions 50, 50 are provided on both left and right side surfaces of the first main body 16 of the die 14. A pair of left and right rotating shafts 52, 52 project horizontally from the pair of left and right fixed portions 50, 50. A base 54 fixed to the frame is arranged below the die 14. A pair of left and right support legs 56, 56 are erected on the base 54. A pair of left and right rotation shafts 52, 52 are rotatably supported by upper ends of a pair of left and right support legs 56, 56. As a result, the die 14 is rotatably supported by the base 54, and is fixed by the fixing portion 50 so that the discharge port 42 is located directly below the lower peripheral surface of the backup roll 12.

As shown in FIG. 4, a bend device 58 is provided at the center of the base 54 in the left-right direction. The support pin 60 projects upward from the center of the upper surface of the bend device 58. As shown in FIGS. 2 and 4, a part of the support pin 60 is inserted into the center portion in the left-right direction on the lower surface of the base 20 of the first main body 16 of the die 14, and the support pin 60 moves up and down. As a result, the base 20 is pushed, and the central portion of the die 14 in the left-right direction moves up and down. The left and right side surfaces of the die 14 are fixed by a pair of left and right support legs 56, 56.

(3) Height Adjusting Structure of Shim 28 Next, the height adjusting structure of the shim 28 will be described with reference to FIGS. 2 to 7.

As shown in FIG. 2, the lower portion of the lower peripheral portion 34 of the shim 28 is exposed from the second main body 18 to the upper portion of the space 44. As shown in FIGS. 3 and 8, four hook holes 67 are opened in the exposed portion of the shim 28.

Further, as shown in FIGS. 2 and 3, the base 20 of the first main body 16 is provided with four through holes 62 in the vertical direction. The position where the through hole 62 is provided is a position corresponding to the hook hole 67 of the shim 28, and is a position on both the left and right sides of the base 20 and both sides of the bend device 58. As shown in FIGS. 2 and 3, the adjusting portion 64 of the rod body is housed in the through hole 62 and is provided so as to be movable in the vertical direction, and the upper portion of the adjusting portion 64 is exposed in the space 44. The upper end of the adjusting portion 64 has a screw hole 76 into which the hook screw 66 is screwed. On the other hand, as shown in FIG. 3, the lower end portion of the adjusting portion 64 is not exposed from below the through hole 62.

As shown in the enlarged view of FIG. 3, the hook screw 66 passes through the hook hole 67 at the lower end of the shim 28 exposed in the space 44 and is fixed to the screw hole 76 of the adjusting portion 64. As a result, the shim 28 can be hooked on the adjusting portion 64 to maintain a predetermined height.

As shown in FIG. 3, an adjusting plate 68 is provided in the front-rear direction on the lower surface of the base 20 at the lower end of the through hole 62. The rear end portion of the adjusting plate 68 is fixed to the lower surface of the base portion 20 with bolts 70 as shown in FIG. On the other hand, an extrusion bolt 72 is provided at the front end portion of the adjusting plate 68 with the through hole 62 interposed therebetween, and a pull-in bolt 74 is provided in front of the extrusion bolt 72. The extrusion bolt 72 is screwed into a screw hole 76 provided on the lower surface of the base 20. Further, the tip of the pull-in bolt 74 is in contact with the lower surface of the base portion 20. As a result, the rear end portion of the adjusting plate 68 becomes a fixed end, and the front end portion of the adjusting plate 68 becomes a free end that moves up and down by the push-out bolt 72 and the pull-in bolt 74.

As shown in FIG. 3, upper and lower bolts 78 are screwed from below into the adjusting plate 68 corresponding to the position of the through hole 62, and the upper end thereof is screwed and fixed to the lower surface of the adjusting portion 64 of the rod body. There is.

As shown in FIG. 5, a bent support plate 80 is provided in the vicinity of the through hole 62, and the dial gauge 82 is provided on the support plate 80. The upper end of the measuring pin 84 of the dial gauge 82 is in contact with the lower surface of the upper and lower bolts 78. The vertical movement dimension of the vertical bolt 78 can be measured by the dial gauge 82 when the measuring pin 84 moves up and down together with the vertical bolt 78.

As shown in FIG. 4, a fixing block 86 is placed on the base 20 at the center of the space 44 in the left-right direction, and can be fixed by bolts 88. The upper end of the fixed block 86 abuts on the lower end of the shim 28. As a result, the shim 28 is placed on the fixing block 86 placed on the upper surface of the base 20, and the position of the shim 28 can be fixed.

(4) Height Adjusting Method for Shim 28 Next, a height adjusting method for the shim 28 will be described.

First, the fastening bolt 36 and the fastening bolt 38 that fasten the first main body 16 and the second main body 18 are loosened to some extent, and the shim 28 is fixed with the initial value fixing block 86 in a state where the shim 28 can be freely moved upward. Provided under. In this state, the value of the dial gauge 82 is set to 0, that is, the initial value. Then, the fastening bolt 36 and the fastening bolt 38 are tightened and a coating test is performed on the web W.

Second, after performing a coating test on the web W, if there is a problem with the coating and it is necessary to adjust the height of the shim 28, remove the fixing block 86 and loosen the fastening bolt 36 and fastening bolt 38. The shim 28 can be moved up and down. Since the fastening bolt 38 penetrates the lower peripheral portion 34 of the shim 28, the shim 28 does not come off from the first main body 16 and the second main body 18.

Thirdly, as shown in FIG. 6, when moving the shim 28 upward (position E), while looking at the dial gauge 82, tighten the extrusion bolt 72 to raise the front end portion of the adjusting plate 68 (C). Position of). In this case, all the four adjusting units 64 are moved in the same way. Depending on the coating state, a part of the adjusting unit 64 may be moved locally. As a result, the left peripheral portion 30 and the right peripheral portion 32 of the shim 28 are raised, the distance from the backup roll 12 is shortened, and the state of the coating liquid discharged from the discharge port 42 is changed. On the other hand, as shown in FIG. 7, when moving the shim 28 downward (position F), while looking at the dial gauge 82, tighten the pull-in bolt 74 to lower the front end portion of the adjustment plate 68 (position D). ). In this case, all the four adjusting units 64 are moved in the same way. As a result, the left peripheral portion 30 and the right peripheral portion 32 of the shim 28 are lowered, the distance from the backup roll 12 is increased, and the state of the coating liquid discharged from the discharge port 42 is changed. After the movement of the shim 28 is completed, the fastening bolt 36 and the fastening bolt 38 are fastened, and the first main body 16 and the second main body 18 are fastened to fix the shim 28.

Fourth, the fixing block 86 is fixed between the base 20 and the lower end of the shim 28. In this case, the vertical dimension of the fixed block 86 is set so as to match the height-adjusted dimension. That is, with respect to the fixed block 86, in addition to the fixed block 86 that determines the initial position of the dial gauge 82, a plurality of fixed blocks 86 suitable for height adjustment are prepared.

Fifth, after the height adjustment of the shim 28 is completed, as shown in FIG. 1, the backup roll 12 is rotated to apply the coating liquid from the die 14 to the web W.

(5) Effect According to the above embodiment, the height of the shim 28 can be easily adjusted by adjusting the push-out bolt 72 and the pull-in bolt 74.

Further, since the height adjustment is performed while looking at the dial gauge 82, the shim 28 can be moved up and down with accurate dimensions.

Further, since a plurality of adjusting portions 64 are provided in the left-right direction, the shim 28 can be uniformly moved up and down in the left-right direction.

Further, since the height of the shim 28 is set for the fixed block 86 for the initial value, the initial setting of the dial gauge 82 can be performed accurately.

Further, after setting the height of the shim 28, the height of the shim 28 is fixed by the fixing block 86, so that the shim 28 does not shift in the vertical direction.

Further, since the bend device 58 is provided at the central portion of the die 14 in the left-right direction, even if the coating thickness of the central portion of the web W in the left-right direction becomes thick due to the pressure of the coating liquid, the bend device 58 By narrowing the distance between the backup roll 12 and the discharge port 42 at the center, the coating thickness of the coating liquid can be made uniform in the left-right direction.

(6) Modification Example In the above embodiment, the adjustment portions 64 are provided at four locations in the left-right direction of the shim 28, but the present invention is not limited to this, and the adjustment portions 64 may be provided only on the left side portion and the right side portion.

Further, in the above embodiment, the shim 28 is provided only with the left peripheral portion 30, the right peripheral portion 32, and the lower peripheral portion 34 of the liquid reservoir portion 24, but when the web W is subjected to stripe coating, the left peripheral portion 30 is provided. A plurality of projecting pieces are provided between the right peripheral portion 32 and the shim 28 into a comb-shaped shape. In this case, the position of the projecting piece is the unpainted portion. In this case, it is preferable to provide the adjusting portion 64 at the position where the projecting piece is provided.

In the above embodiment, the adjusting unit 64 is adjusted by adjusting the extrusion bolt 72 and the pull-in bolt 74, but instead of this, it may be moved up and down by another method, for example, it may be moved up and down by a servomotor or the like.

Further, in the above embodiment, as shown in FIG. 1, the backup roll 12 rotates in the counterclockwise direction, and the web W runs on the lower peripheral surface thereof from the left to the right in FIG. 1, which is the opposite. In addition, the backup roll 12 may rotate in the clockwise direction, and the web W may travel on the lower peripheral surface thereof from right to left in FIG.

Further, in the above embodiment, four or more, for example, six hook holes 67 of the shim 28 may be provided. The adjusting unit 64 is also provided at six locations corresponding to this.

Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Coating device, 12 ... Backup roll, 14 ... Die, 16 ... 1st main body, 18 ... 2nd main body, 20 ... Base, 24 ... Liquid reservoir , 28 ... Sim, 30 ... Left peripheral part, 32 ... Right peripheral part, 34 ... Lower peripheral part, 44 ... Space, 64 ... Adjustment part, 68 ... Adjustment plate , 70 ... bolts, 72 ... extrusion bolts, 74 ... pull-in bolts, 78 ... upper and lower bolts, 82 ... dial gauges

Claims (9)

A backup roll with a web running on the lower peripheral surface,
With the die placed below the backup roll,
In the coating equipment with
The die has a first body, a second body and a shim.
A liquid reservoir is provided on the front surface of the first main body, and a liquid reservoir is provided.
The shim has a shape corresponding to the lower peripheral portion, the left peripheral portion, and the right peripheral portion of the liquid reservoir portion.
The front surface of the first main body and the rear surface of the second main body are fixed via the shim.
A shim adjusting means for adjusting the height of the shim sandwiched between the first main body and the second main body is provided .
The base protrudes from the lower part of the first main body,
A space is formed between the base and the second main body.
The shim adjusting means is provided in the space and the base.
Coating equipment. The lower part of the lower peripheral portion of the shim is exposed to the space.
The shim adjusting means includes an adjusting portion and a vertical moving means for moving the adjusting portion up and down.
The upper part of the adjusting portion is fixed to the shim exposed in the space, and is fixed to the shim.
The vertical movement means is provided at the base.
The coating apparatus according to claim 1. Through holes are opened in the base in the vertical direction.
The adjusting portion penetrates the base portion so as to be movable up and down.
The vertical movement means has an adjusting plate, a vertical bolt, and an adjusting bolt.
The adjusting plate is arranged on the lower surface of the base portion so as to straddle the through hole.
One end of the adjusting plate is a fixed end and the other end is a free end.
The adjusting plate and the lower part of the adjusting portion are fixed with the upper and lower bolts.
The adjusting bolt for moving the other end of the adjusting plate up and down is provided.
The coating apparatus according to claim 2. The adjusting bolt includes an extrusion bolt screwed onto the lower surface of the base portion and a pull-in bolt whose upper end portion abuts on the lower surface of the base portion.
The coating apparatus according to claim 3. A dial gauge is provided on the underside of the base.
A measuring pin protruding from the dial gauge is in contact with the lower end of the upper and lower bolts.
The coating apparatus according to claim 4. The adjusting portion is a rod body.
The coating apparatus according to claim 2. A fixing block is arranged between the upper surface of the base and the lower end of the shim.
The coating apparatus according to claim 2. The height of the fixed block is a dimension corresponding to the initial position of the height of the shim.
The coating apparatus according to claim 7. The shim is comb-shaped with one or more protruding pieces protruding from the lower peripheral portion between the left peripheral portion and the right peripheral portion.
The coating apparatus according to any one of claims 1 to 8.

Images