JP4544696B2 - Die head - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a die head for applying a coating liquid in a strip pattern to a web.
[0002]
[Prior art]
Conventionally, what has a pair of type | mold which forms a discharge outlet is known as a die head which apply | coats a coating liquid with a strip | belt-shaped pattern with respect to a web.
[0003]
In this case, a non-coating portion of the coating liquid is formed between the pair of molds, and a plurality of coating liquid discharge ports are intermittently formed by the other opening portions.
[0004]
In addition, each discharge port between the pair of molds is formed by a discharge port groove provided by directly processing the tip of the mold.
[0005]
[Problems to be solved by the invention]
As described above, each discharge port formed between a pair of molds is formed by a discharge port groove provided by processing a step at the tip of the mold.
[0006]
However, when forming the discharge port groove by directly processing the tip of the mold, it is difficult to sharply process the corner of the discharge port groove, and the discharge port groove cannot be formed with high accuracy. For this reason, it is difficult to apply the coating liquid to the web in a strip-like pattern from the discharge port with high accuracy.
[0007]
The present invention has been made in consideration of such points, and an object thereof is to provide a die head having a discharge port formed with high accuracy.
[0008]
[Means for Solving the Problems]
The present invention includes one mold and the other mold that is fitted to the one mold and forms a discharge port for discharging a coating liquid between the one mold and the other mold side. is the formed on the surface is flat, the other types possess and supporting, and a plurality of blocks forming one another apart from the discharge port along with contact in one of the mold provided in supporting the distal end side, the other The mold support mold has a plurality of press-fitting grooves, and each block is press-fitted into the corresponding press-fitting groove, and each block abuts against the flat surface of one mold to form a non-ejection part. The die head is characterized in that a discharge port is formed, and a corner portion on the support mold side of the discharge port is formed between each block and the support mold .
[0009]
According to the present invention, since the discharge port is formed by a plurality of blocks provided separately from the support die of the other die, each block is processed in advance with high accuracy, and this block is provided in the support die. Thereby, a plurality of discharge ports can be formed with high accuracy.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
1A to 1C are views showing an embodiment of a die head according to the present invention. 1A is a perspective view of the die head, FIG. 1B is a view showing the other mold, and FIG. 1C is an enlarged view of a portion C of FIG. 1B.
[0012]
As shown in FIGS. 1A to 1C, the die head 10 is fitted to one mold (upstream mold) 11 having a flat surface 11a and one mold 11, and a support mold 12a and a plurality of molds. The other type | mold (downstream type | mold) 12 which has the block 14 is provided.
[0013]
Among them, the support die 12a of the other die 12 is provided with a plurality of press-fitting grooves 13 on the tip side, and each block 14 is press-fitted into the corresponding press-fitting groove 13 and held. In addition, you may fix each block 14 to the support type | mold 12a using the volt | bolt 15 further.
[0014]
The blocks 14 of the other mold 12 are spaced apart from each other, and each block 14 abuts against the flat surface 11 a of the one mold 11 to form a non-ejection portion 19. Further, a plurality of discharge ports 18 for discharging the coating liquid are formed between the blocks 14.
[0015]
Since the other mold 12 includes a support mold 12a and a plurality of blocks 14 provided separately from the support mold 12a, the block 14 is processed in advance with high accuracy, and the block 14 is press-fitted into the support mold 12a. By applying pressure in the groove 13, the discharge port 18 having the width W can be formed with high accuracy.
[0016]
That is, it is conceivable that the corner of the discharge port 18 does not become sharp when the tip of the other mold is directly stepped to provide the discharge port groove and the discharge port 18 is formed by this discharge port groove. On the other hand, according to the present invention, the other mold 12 comprises a support mold 12a and a block 14 provided separately from the support mold 12a and pressed into the press-fitting groove 13 of the support mold 12a. The corner on the base end side (support mold 12a side) of the outlet 18 can be formed with high accuracy.
[0017]
In addition, the corner 14a on the support mold 12a side of each block 14 is cut so as to be easily press-fitted into the press-fitting groove 13.
[0018]
Next, the operation of the present embodiment having such a configuration will be described.
[0019]
First, as shown in FIGS. 1A, 1 </ b> B, and 1 </ b> C, the web W travels on the plurality of discharge ports 18 of the die head 10, and the manifold 16 in the die head 10 with respect to the web W traveling in this way. The coating liquid (not shown) supplied to the nozzles is discharged from the discharge ports 18. In this case, each discharge port 18 is provided separately from the support die 12a and is formed by the block 14 press-fitted into the press-fitting groove 13 of the support die 12a. Therefore, each discharge port 18 can be formed with high accuracy. it can. For this reason, it is possible to apply the coating liquid on the web W in a strip pattern with high accuracy.
[0020]
Next, another embodiment of the die head 10 according to the present invention will be described with reference to FIGS.
[0021]
2A is a perspective view of the die head, FIG. 2B is a view showing the other mold, and FIG. 2C is an enlarged view of a portion C in FIG. 2B.
[0022]
2 (a)-(c) is an embodiment in which each block 14 of the other mold 12 is bonded and fixed to the support mold 12a, and the other is shown in FIGS. 1 (a)-(c). This is substantially the same as the embodiment.
[0023]
2 (a)-(c), the same parts as those in the embodiment shown in FIGS. 1 (a)-(c) are denoted by the same reference numerals, and detailed description thereof is omitted.
[0024]
2A to 2C, a block 14 provided separately from the support mold 12 a is bonded and fixed to the support mold 12 a of the other mold 12. For this reason, each block 14 is formed in advance with high accuracy, and the discharge ports 18 can be formed between the blocks 14 with high accuracy by bonding and fixing the block 14 to the support die 12a.
[0025]
【The invention's effect】
As described above, according to the present invention, a plurality of discharge ports can be formed with high accuracy by processing each block with high accuracy in advance and providing the block in the support mold. For this reason, a coating liquid can be apply | coated to a web accurately with a strip | belt-shaped pattern.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a die head according to the present invention.
FIG. 2 is a view showing another embodiment of the die head according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Die head 11 One type | mold 11a Flat surface 12 The other type | mold 12a Support type | mold 13 Press-fit groove | channel 14 Block 18 Discharge port W Web

Claims (2)

One mold and
The other mold is fitted to one mold and forms a discharge port for discharging the coating liquid between the one mold and the other mold,
One mold has a flat surface on the other mold,
The other type possess and supporting, and a plurality of blocks forming one another apart from the discharge port along with contact in one of the mold provided in supporting the distal end side,
The other mold support mold has a plurality of press-fitting grooves, and each block is press-fitted into the corresponding press-fitting groove,
Each block abuts the flat surface of one mold to form a non-ejection part, and a discharge port is formed between each block, and a corner on the support mold side of the discharge port is formed between each block and the support mold. die head being characterized in that it is.   2. The die head according to claim 1, wherein each block of the other mold is fixed to the support mold by bolting.

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