JPH0838975A - Die coater adjustable in coating applying width - Google Patents

Abstract

PURPOSE:To prevent leakage of a coating liquid from a manifold and slot part and to stably discharge the coating liquid from a front end lip part by communicating the manifold to the slot part with plural through-hole parts, charging a coating applying width adjusting plate into the slot part and holding the plate with upper and lower hardware. CONSTITUTION:The die coater 1 arranged with the slot part 32 formed in the part where the upper hardware 2 and the lower hardware 3 face each other in such a manner that the slot part discharges the coating liquid on a band-shaped material 7 is arranged with the front end lip part 31 which faces the band-shaped material 7 apart a prescribed spacing. The coating liquid is spread into the manifold 22 regulated by a rod and is made to flow out to the slot part 32 through a coating liquid supplying path 30 which is not closed in the bottom by the coating applying width adjusting plate when the coating liquid is supplied from a coating liquid supplying device 28 to a coating liquid supplying port 27. Further, the coating liquid is discharged via the front end lip part 31 from the slot part 32 of the coating applying width regulated by the coating applying width adjusting plate and is applied by the prescribed coating applying width on the band-shaped material 7 transported together with rotation of a backup roll 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die coater for applying a coating liquid to the surface of a strip-shaped material such as a metal plate which is continuously conveyed.

[0002]

2. Description of the Related Art Conventionally, a die coater shown in FIG. 6 is known as a die coater for applying a coating liquid to the surface of a strip-shaped material which is continuously conveyed. The die coater 110 is composed of an upper metal member 111 and a lower metal member 112.
At the boundary portion of 12 the manifold 113 is straddled over both sides.
Are formed. A slot portion 116 is formed by cutting at least one or both of the upper metal piece 111 and the lower metal piece 112 in a facing portion 115 of the upper metal piece 111 and the lower metal piece 112, which faces the tip lip portion 117 from the manifold 113. There is. Also, as shown in FIG.
The coating width adjusting plates 118, 1 are provided on both ends of the slot 116.
18 'is arranged. These coating width adjusting plates 11
8, 118 'are driven independently of the rods 119, 119' arranged in the manifold 113, or
It is fixed to 9,119 'and is adapted to drive in synchronization.

Therefore, in the die coater 110,
The coating liquid supplied to the manifold 113 is the slot portion 11
6 is discharged from the tip lip portion 117 after passing through the belt 6, and is supported by the backup roll 120 facing the tip lip portion 117 with a predetermined interval and conveyed in the arrow direction.
14 surface. Further, when the strip-shaped material 114 is changed to the strip-shaped material 114 having a different width, the coating width adjusting plates 118 and 118 'are replaced with different widths, and the coating liquid discharge width, that is, the coating width corresponds to the width of the strip-shaped material 114. And adjusted.

[0004]

However, in the die coater 110, when the coating width is changed, the upper metal 1
11 and the lower metal member 112 had to be disassembled, which required a lot of time.

Further, in the manifold 113 of the die coater 110, the upper metal piece 111 and the lower metal piece 112 are each formed with a semicircular groove portion so that they are formed into a perfect circle when they are overlapped with each other. 111, 11
It is not always easy to accurately machine a semicircular groove in 2. When the manifold 113 has an elliptical shape, or when the manifold 113 is misaligned when superposed, the flow of the coating liquid moving from the manifold 113 to the slot 115 is disturbed and the thickness of the coating film becomes uneven. , Rod 1
The sealability of 19, 119 'is reduced and the manifold 11
The coating liquid may leak from the end of 3.

Further, the viscosity of the coating liquid, the discharge amount, the strip-shaped material 1
As shown in FIG. 8, the die coater 110 may be used by offsetting (offseting) the upper lip 121 and the lower lip 122 depending on the conveyance speed of 14 and the like.
It becomes difficult to dispose 9, 119 ', and even if it is possible, the sealing performance of the rods 119, 119' will deteriorate and the coating liquid will leak.

Furthermore, the conveying speed of the strip material 114,
The thickness of the coating liquid applied to the strip-shaped material 114, the discharge amount of the coating liquid,
It is necessary to adjust the gap between the slot parts 116, that is, the gap between the upper metal part 111 and the lower metal part 112 that form the slot part 116 according to the viscosity of the coating liquid. Spacers for gap adjustment are provided between the coating width adjusting plates 118 and 118 ′, in the upper and lower portions of the coating width adjusting plates 118 and 118 ′, and in the region where the upper metal member 111 and the lower metal member 112 are in direct contact with each other, and the slot portion 116 is provided. However, if the gap is increased, the shape of the manifold 113 changes, and the sealing performance of the rods 119 and 119 'deteriorates.

[0008]

SUMMARY OF THE INVENTION Therefore, the present invention has been made to solve the above-mentioned problems, and a coating liquid is discharged onto a strip-shaped material from a slot portion formed in an opposed portion of an upper metal member and a lower metal member. In the die coater configured as described above, a manifold for supplying a coating liquid to the slot portion is formed inside the upper metal piece and / or the lower metal piece, and the manifold and the slot portion are communicated with each other through a plurality of penetrating portions, and the slot portion is formed. It is characterized in that a coating width adjusting plate is inserted into and held between the upper and lower metal parts.

Means for contacting and separating the upper metal piece and the lower metal piece may be provided, and further, means for contacting and separating the upper metal piece and the lower metal piece is means for separating the upper metal piece and the lower metal piece. , Means for pressing the upper metal member or the lower metal member toward the other may be provided.

[0010]

In the die coater having the above structure, when the coating liquid is supplied to the manifold provided on the upper metal member or the lower metal member, the coating liquid passes through the penetrating portion and the coating liquid application area is adjusted by the application width adjusting plate. It is discharged from the slot portion and applied to the strip-shaped material.

In the die coater of the second aspect, when the means for contacting and separating the upper metal member and the lower metal member is operated, the upper metal member and the lower metal member are separated from each other to change the charging position of the coating width adjusting plate, The upper metal piece and the lower metal piece can be brought into close contact with each other, and the application width adjusting plate can be held between the upper metal piece and the lower metal piece.

Further, in the die coater of the third aspect, a means for separating the upper metal piece and the lower metal piece by the means for separating the upper metal piece and the lower metal piece to change the charging position of the coating width adjusting plate and then pressing means is provided. By operating, the upper metal piece and the lower metal piece are brought into close contact with each other, and the application width adjusting plate can be held between the upper metal piece and the lower metal piece.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show a die coater 1 according to the present invention.
2 shows a first embodiment of the above. Die coater 1 is metal 2
And a lower metal 3 and a die main body 4 and a support 5 for supporting the die main body 4.

The support base 5 is provided so as to be movable back and forth with respect to a strip-shaped material (for example, a metal strip) 7 conveyed in the direction of the arrow along the outer circumference of the backup roll 6. Further, the support base 5 has a stepped portion 8 formed by cutting the portion facing the backup roll 6 into an L shape. Further, a plurality of through holes 10 are provided in the rear wall 9 which constitutes the step portion 8. A cylinder fixing member 11 protruding above the step portion 8 is provided on the upper portion of the rear wall 9. A small hydraulic cylinder 12 is provided at a predetermined interval on the cylinder fixing member 11, and a cylinder rod 13 thereof is inserted into a vertical through hole 14 provided in the cylinder fixing member 11.

The lower metal member 3 has a plurality of recesses 1 on its upper surface 15.
6 is formed. Disc springs 18 are housed in the recesses 16, respectively. The disc springs 18 are bolts 17 so that a part of the disc springs 18 slightly protrudes from the upper surface 15 of the lower metal member 3.
It is fixed at. Then, the lower metal 3 is placed on the stepped portion 8, and the bolt 21 inserted into the through hole 10 of the rear wall 9 is screwed into the screw hole 20 of the rear portion and fixed. It should be noted that upper hardware 2
The lower metal member 3 is set on the stepped surface 19 to enable the dimensional reproducibility of the tip lip portion 31.

A manifold 22 is provided inside the upper metal member 2 along the coating width direction. In the manifold 22,
Rods 24, 24 'with packings 23, 23' are inserted from both ends 25, 25 '. A coating liquid supply port 27 that communicates with the manifold 22 from its upper surface 26 is provided in the center of the upper metal member 2. A coating liquid supply device 28 is connected to the coating liquid supply port 27, and the coating liquid is supplied to the manifold 22. It is being supplied. Meanwhile, the manifold 22
A plurality of coating liquid supply passages 30 communicating with this and the lower surface 29 of the upper metal 2 are provided at equal intervals. Further, a slot portion 32 is formed on the bottom portion of the upper metal member 2 by cutting a region from a substantially central portion to the tip lip portion 31 to a predetermined thickness.

The upper metal piece 2 is inserted between the lower metal piece 3 and the cylinder fixing member 11. The slot portion 32 has a thickness substantially equal to the depth thereof (specifically, 0.3 to 0.5).
mm coating width adjusting plates 33, 33 'are loaded from both sides, respectively. Then, the cylinder 12 is driven so that the cylinder rod 13 presses the upper metal piece 2 downward, and the upper metal piece 2 is fixed in close contact with the lower metal piece 3 against the biasing force of the disc spring 18.

In this way, the die coater 1 in which the upper metal piece 2 and the lower metal piece 3 are integrated is arranged with the tip lip portion 31 facing the strip material 7 with a predetermined gap.

When the coating liquid is supplied from the coating liquid supply device 28 to the coating liquid supply port 27, the coating liquid is applied to the rods 24, 24 '.
Spread inside the manifold 22 regulated by
Coating liquid supply path 3 whose bottom is not covered by the coating width adjusting plate 33
Through 0 to the slot 32. Further, the coating liquid is discharged from the slot portion 32 of the coating width L1 (coating liquid coating area) regulated by the coating width adjusting plates 33, 33 'through the tip lip portion 31, and is conveyed along with the rotation of the backup roll 6. The strip-shaped material 7 is coated by the coating width L1.

When changing the coating width L1, the cylinder 12
Is operated to reduce the pressing force of the cylinder rod 13. Then, the upper metal member 2 is separated from the lower metal member 3 by 30 to 50 μm by the biasing force of the disc spring 18, and the gap of the slot portion 32 is widened. Next, the coating width adjusting plate moving device (not shown) moves the coating width adjusting plates 33, 33 'to a desired position to change the coating width. Then, the cylinder 12 is operated to press the upper surface 26 of the upper metal 2 with the cylinder rod 13 to bring the upper metal 2 and the lower metal 3 into close contact with each other to fix the coating width adjusting plates 33 and 33 '. It is also preferable to move the coating width adjusting plates 33, 33 'and at the same time move the rods 24, 24' to substantially the same positions as the ends of the coating width adjusting plates 33, 33 '. Of course, the coating width adjusting plates 33, 33 'and the rods 24, 2
It goes without saying that the 4'can be configured to be driven synchronously. The means for urging the upper metal member 2 is not limited to the disc spring 18, but may be a coil spring, a leaf spring, or an elastic body such as rubber. Further, the cylinder 12 may be driven by pushing and pulling, and a screw type pushing and pulling mechanism may be used instead of the cylinder 12.

As described above, in the die coater 1, the upper metal member 2 and the lower metal member 3 can be separated / adhered to each other only by increasing / decreasing the pressing force of the cylinder rod 13.
Coating width adjusting plates 33, 3 held between the lower metal member 3 and the lower metal member 3.
The position of 3'can be easily changed. Further, when the upper metal piece 2 and the lower metal piece 3 are brought into close contact with each other, the manifold 22 is always provided with the rods 24, 2 even if the upper metal piece 2 and the lower metal piece 3 are misaligned.
Since it is ideally sealed by the packings 23 and 23 'of 4', the manifold 22 can stably supply the coating liquid to the coating liquid supply passage 30.

Further, in the die coater 1, since the manifold 22 is completely sealed as described above, a thin plate is mounted between the upper metal member 2 and the lower metal member 3 depending on the coating conditions such as the viscosity of the coating liquid. The coating liquid does not leak from the manifold 22 even if the gap of the slot portion 32 is changed by inserting it.

Further, when changing the coating liquid, the rod 2
4, 24 'are moved to the center of the manifold 22 to discharge the coating liquid remaining in the manifold 22 from the coating liquid supply port 27, and at the same time, the coating width adjusting plates 33, 33' are moved to the center in the slot portion 32. Then, after the coating liquid in the slot portion 32 is discharged, a new coating liquid may be supplied. Furthermore, when cleaning the inside of the manifold 22, the rod 2
4, 24 'are removed, and a runner (not shown) is loaded inside the manifold 22 and cleaning liquid or compressed air is alternately supplied from the end of the manifold 22 to move the runner along the manifold 22. By doing so, the coating liquid attached to the inner circumference of the manifold 22 is completely discharged. In the die coater 1 having the above structure, the coating liquid supply passage 30 that connects the manifold 22 and the slot portion 32 to each other.
Has a plurality of through holes, but may have a slit shape. Needless to say, the manifold 22 may be provided on the lower metal member 3.

Next, a second embodiment of the die coater according to the present invention will be described. The die coater 40 applies the coating liquid in two layers, and as shown in FIG.
The die main body 41 includes an upper metal part 42, a middle metal part 43, and a lower metal part 4.
The metal core 43 is provided so as to be movable back and forth with respect to a strip-shaped material (for example, a metal strip) 47 conveyed in the direction of the arrow along the outer circumference of the backup roll 46.

The middle metal part 43 is provided with a tapered wedge-shaped protrusion 48 whose upper and lower surfaces are inclined and whose thickness gradually decreases toward the tip end in the middle step part. This wedge-shaped protrusion 48
The upper surface 49 and the lower surface 50 of each of the first slot portion 51 and the second slot portion 5 are formed by cutting a region at a predetermined distance from the tip.
2 is formed. Further, a first recess 55 and a second recess 56, which are open to the backup roll 46 and accommodate the upper metal member 42 and the lower metal member 44, are formed above and below the middle metal member 43.

The upper surface 58 of the first concave portion 55 and the upper surface 49 of the wedge-shaped protruding portion 48 are arranged so that the vertical distance between them becomes wider as they approach the backup roll 46. Similarly,
The lower surface 60 of the second recess 56 and the lower surface 50 of the wedge-shaped protrusion 48.
Has a wider vertical distance as it approaches the backup roll 46.

The first recess 55, the rear wall 62 of the second recess 56,
As shown in FIG. 4, through holes 65 communicating with the back surface 64 are provided at a predetermined interval in 73, and screw holes 66 are provided between the through holes 65. In addition, as shown in FIG. 5, the rear surface 64 has a pneumatic or hydraulic cylinder 6
A plurality of cylinders 7 are provided, and the cylinder rods 68 of these cylinders 67 are inserted into the through holes 65. A pressing rod 70 is inserted into each of the screw holes 66, and a plurality of disc springs 72 are attached to the tip end portion of the pressing rod 70 protruding into the first recess 55 and the second recess 56. When the die width becomes wider, the number of through holes 65 and screw holes 66 increases. The pressing rod 70 includes a first tip lip portion 90,
It also serves as a positioning adjustment for the second tip lip portion 91 and as a guide for the disc spring 18.

The upper metal piece 42 has an outer surface 75 and an inner surface 76.
However, the upper surface 58 of the first recess 55 and the upper surface 4 of the wedge-shaped protrusion 48 are
9 are formed so as to be parallel to each other.
A manifold 77 is provided inside the upper metal piece 42 along the coating width direction, and the manifold 77 has rods 79, 7 having packings 78, 78 ′ at the tips thereof.
9'is inserted from both ends of the manifold 77. Further, a coating liquid supply port 80 communicating from the outer surface 75 to the manifold 77 is provided at the center of the upper metal member 42, and a coating liquid supply device 81 is connected to the coating liquid supply port 80 for top coating the manifold 77. The coating liquid is supplied. On the other hand, below the manifold 77, this and the inner surface 7
A plurality of coating liquid supply passages 82 communicating with 6 are provided at equal intervals.

The upper metal piece 42 is accommodated in the first recess 55 with its outer surface 75 aligned with the upper surface 58 of the first recess 55,
After screwing the screw portion 85 of the cylinder rod 68 into the screw hole 84 formed in the rear portion 83 to roughly align the inner surface 76 of the upper metal member 42 and the upper surface 49 of the wedge-shaped protruding portion 48, both ends of the first slot portion 51. 86, 86 'to coating width adjusting plates 88, 8
8'is loaded respectively.

Then, the cylinder 67 is operated to move the cylinder rod 68 in the direction of arrow a (rearward) to move the upper metal piece 42.
The upper metal piece 42 is drawn into the first recess 55 until the rear portion 83 contacts the disc spring 72 of the pressing rod 70. As a result, the outer surface 75 and the inner surface 76 of the upper metal piece 42 are separated from each other by the first recess 55.
And the upper surface 49 of the wedge-shaped protrusion 48, respectively. In addition, the coating width adjusting plates 88, 88 'are
And is clamped by the wedge-shaped protrusion 48.

The lower metal piece 44 is vertically symmetrical with the upper metal piece 42, and is similarly mounted in the second recess 56. The constituent parts of the lower metal piece 44 corresponding to the constituent parts of the upper metal piece 42 are used by adding 20 to the same reference numerals, and the same reference numerals are used for the constituent members of the lower metal piece 44 corresponding to the constituent members of the upper metal piece 42. It is used by attaching it and the explanation is omitted.

The die coater 40 having the above-described structure is composed of an upper metal piece 42.
And a first tip lip portion 90 formed by the wedge-shaped protrusion 48
And the second tip lip portion 91 formed by the wedge-shaped protrusion 48 and the lower metal member 44 to the backup roll 46 and a predetermined gap between the strip-shaped material 47 (for example, a metal strip) conveyed by the backup roll 46 in the arrow x direction. Are arranged facing each other.

Then, from the coating liquid supply device 81, the lower metal 4
The coating liquid for undercoating supplied to the coating liquid supply port 100 of No. 4 is manifold 97 regulated by rods 79 and 79 '.
Of the second coating liquid through the plurality of coating liquid supply paths 102.
It flows out into the slot portion 52. Further, the coating liquid is discharged from the second slot portion 52 of the coating width L2 (coating liquid coating area) regulated by the coating width adjusting plates 88, 88 ′ through the second tip lip portion 91, and coated on the band-shaped material 47. Only the width L2 is applied as the first layer (undercoat).

On the other hand, the top coating liquid supplied from the coating liquid supply device 81 to the coating liquid supply port 80 of the upper metal article 42 is the rod 7
It spreads inside the manifold 77 regulated by 9, 79 ′ and flows out to the first slot portion 51 through the plurality of coating liquid supply passages 82. The coating liquid is applied on the coating width adjusting plates 88, 8
At 8 ', the first slot portion 51 having the coating width L2 regulated to have the same width as the first layer is discharged through the first tip lip portion 90, and the strip material 47 is coated with the coating width L2 by the second layer ( It is applied as a top coat).

When changing the coating width L2 of the first layer, the cylinder 67 of the lower metal member 44 is operated to weaken the pulling force of the cylinder rod 68. Then, the pressing rod 70
The outer surface 95 of the lower metal piece 44 is extruded along the lower surface 60 of the second recess 56 in the arrow b direction (horizontal direction) by a small distance by the urging force of the disc spring 72 provided at the tip of the. Since the inner surface 96 of the lower metal piece 44 and the lower surface 50 of the wedge-shaped protrusion 48 are formed at the same angle, the inner surface 9 of the lower metal piece 44 is formed.
6 is a minute gap (about 30 to 30) from the lower surface 50 of the wedge-shaped protrusion 48.
50 μm) away from each other to widen the gap of the second slot portion 52. Then, the coating width adjusting plates 88 and 88 'loaded in the second slot portion 52 are moved to a desired position by a coating width adjusting device (not shown) to change the coating width L2.

After that, the cylinder 67 is operated to increase the pulling force of the cylinder rod 68, and the lower metal piece 44 is moved in the direction of arrow a, and the rear portion 103 is moved to the disc spring 7 of the pressing rod 70.
Abut on 2. Further, the inner surface 96 of the lower metal piece 44 and the lower surface 50 of the wedge-shaped protruding portion 48 are brought into close contact with each other, and the coating width adjusting plate 8
8, 88 'are clamped and fixed by the inner surface 96 of the lower metal member 44 and the lower surface 50 of the wedge-shaped protrusion 48. The coating width adjusting plate 8
It is preferable to move the positions of the rods 79 and 79 'to a position substantially equal to that of the coating width adjusting plates 88 and 88' at the same time when the 8, 88 'is moved.

The air cylinder 67 may be moved in the directions of arrows a and b without energizing the rear portion 103 with the energizing means such as the disc spring 72 or the like to widen the gap of the second slot portion 52. . The urging means provided on the pressing rod 70 is not limited to the disc spring 72, but may be a coil spring, a leaf spring, or an elastic body such as rubber.

Also, the case of changing the coating width L2 of the second layer is the same as the case of changing the coating width L2 of the first layer described above, and therefore description thereof is omitted.

As described above, in the die coater 40, the upper metal member 42 and the wedge-shaped protrusion 48, or the wedge-shaped protrusion 48 and the lower metal member 44 can be separated and brought into close contact with each other only by increasing or decreasing the pulling force of the cylinder rod 68. it can. Therefore, the first slot portion 51 provided on the wedge-shaped protrusion 48,
Alternatively, since the gap between the second slot portions 52 can be widened, it is possible to easily move the positions of the coating width adjusting plates 88 and 88 'inserted in the first slot portions 51 or the second slot portions 52.

When the upper metal piece 42 and the wedge-shaped protrusion 48 and the wedge-shaped protrusion 48 and the lower metal piece 44 are brought into close contact with each other, the upper metal piece 4
Even if the wedge-shaped protrusion 48 and the wedge-shaped protrusion 48 are displaced from each other, the manifolds 77 and 97 are ideally sealed by the packings 78 and 78 'of the rods 79 and 79'. The manifolds 77 and 97 can always and stably supply the coating liquid to the coating liquid supply passages 82 and 102 without pressure loss.

Further, in the die coater 40, since the manifolds 77 and 97 are completely sealed as described above, the upper metal member 42 and the wedge-shaped protrusion 48, depending on the coating conditions.
A thin plate may be inserted between the wedge-shaped protrusion 48 and the lower metal member 44 to widen the gap between the first slot portion 51 and the second slot portion 52. Also, if necessary, the upper metal fitting 42
Even if the wedge-shaped protrusion 48 and the wedge-shaped protrusion 48 and the lower metal member 44 are used while being offset (offset), the manifold 7
The coating liquid does not leak from 7,97.

Furthermore, when the coating liquid is changed, the rods 79 and 79 'are moved to the center and the manifold 7 is moved.
The coating liquid remaining in 7,97 can be discharged from the coating liquid supply ports 80,100. In addition, the manifolds 77, 97
When cleaning the inside of the manifold 77, 97, a runner (not shown) is inserted into the manifold 77, 97, and cleaning liquid or compressed air is supplied into the manifold 77, 97 to move the runner. The coating liquid does not remain on the inner circumference of 97. Further, in order to discharge the residual coating liquid inside the first slot portion 51 and the second slot portion 52, the coating width adjusting plates 88 and 88 'are also provided on the rods 79 and 7.
By operating at the same time as 9 ', the effect of discharging the coating liquid is further increased.

[0043]

As is apparent from the above description, in the coating width adjusting die coater according to the present invention, since the manifold is formed in the upper metal piece and / or the lower metal piece, the manifold can be easily processed. . Therefore, the manufacturing cost of the die coater can be reduced. Furthermore, since the cross-sectional shape of the manifold does not deform due to the displacement of the upper and lower metal parts, it is always constant,
The manifold is completely sealed. Moreover, since the manifold and the slot portion are connected by the penetrating portion, it is not necessary to provide a seal between the manifold and the slot portion.
Therefore, the coating liquid does not leak from the manifold or the slot portion, and is stably discharged from the tip lip portion. Further, if necessary, even if a thin plate or the like is inserted between the upper metal member and the lower metal member to widen the gap of the slot portion, the coating liquid does not leak from the upper and lower surfaces of the thin plate.

Further, when the contacting / separating means for the upper metal member and the lower metal member is operated, the gap of the slot portion between the upper metal member and the lower metal member widens, so that the above-mentioned slot is not disassembled without disassembling the upper metal member and the lower metal member. It can be easily moved to the position of the coating width adjusting plate loaded in the section.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment of a die coater according to the present invention.

FIG. 2 is a plan view of the first embodiment of the die coater according to the present invention.

FIG. 3 is a sectional view of a second embodiment of the die coater according to the present invention.

FIG. 4 is a rear view of the second embodiment of the die coater according to the present invention.

FIG. 5 is a plan view of a second embodiment of the die coater according to the present invention.

FIG. 6 is a cross-sectional view of a conventional die coater.

FIG. 7 is a perspective view of a conventional die coater provided with a coating width adjusting plate.

FIG. 8 is a cross-sectional view of a conventional die coater in which an upper metal member and a lower metal member are offset from each other.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Die coater, 2 ... Upper metal part, 3 ... Lower metal part, 4 ... Die main body, 12 ... Small cylinder, 18 ... Disc spring, 22 ... Manifold, 30 ... Coating liquid supply path (penetrating part), 32 ... Slot part, 33 , 33 '... Coating width adjusting plate.

Claims (3)

[Claims] 1. A die coater configured to discharge a coating liquid onto a strip-shaped material from a slot portion formed at an opposing portion of an upper metal member and a lower metal member, and a manifold for supplying the coating liquid to the slot portion is provided with the upper metal member and / or the manifold. Alternatively, it is formed inside the lower metal part, and the manifold and the slot part are communicated with each other through a plurality of penetrating parts, and a coating width adjusting plate is inserted in the slot part and sandwiched between the upper metal part and the lower metal part. Coating width adjustment die coater. 2. The coating width adjusting die coater according to claim 1, further comprising means for contacting and separating the upper metal member and the lower metal member. 3. The means for bringing the upper metal piece and the lower metal piece into contact with each other includes means for separating the upper metal piece and the lower metal piece from each other, and means for pressing the upper metal piece or the lower metal piece toward the other. The coating width adjusting die coater according to claim 2.