JP4559585B2 - 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, as a die head for applying a belt-like pattern to a web, a pair of molds that form discharge ports, a resin sheet such as Teflon or polyester sandwiched between the pair of molds, or a metal such as copper or aluminum Those having a sheet are known.
[0003]
In this case, a non-coating portion of the coating liquid is formed between the pair of molds by a resin sheet or a metal sheet, and a discharge port for the coating liquid is formed by the other opening portions.
[0004]
In addition, there is also known a projecting part that protrudes from one mold between a pair of molds, the projecting part being an uncoated part, and a part other than the projecting part being a discharge port.
[0005]
Furthermore, there has been developed one in which a discharge block and a non-discharge block are alternately provided in one of a pair of molds, discharge ports are formed by the discharge block, and a non-coating portion is provided by the non-discharge block.
[0006]
[Problems to be solved by the invention]
Of the above-described die heads, those that sandwich a resin sheet or a metal sheet require a sheet sandwiching operation, which is troublesome and difficult to sandwich the sheet with high accuracy.
[0007]
Further, a die head provided with a protruding portion between a pair of molds is difficult to process the protruding portion, and it is difficult to process the protruding portion with high accuracy, and it is not possible to perform highly accurate strip coating.
[0008]
Furthermore, since the die head in which the ejection block and the non-ejection block are alternately provided on one mold is a combination of blocks, the protruding portion can be formed with high precision. In some cases, it is difficult to apply the coating portion in a strip shape with high accuracy.
[0009]
The present invention has been made in consideration of such points, and can easily and accurately provide the discharge port and the non-coated portion, whereby the coated portion is accurately applied to the web in a strip shape. An object of the present invention is to provide a die head that can be used.
[0010]
The present invention includes one mold and the other mold fitted to the one mold, and the one mold includes a support body and a block body provided on the front end side of the support body. Has a base and a plurality of discharge blocks and a plurality of non-discharge blocks arranged alternately on the base, the discharge block forms a discharge port with the other mold, and the non-discharge block is the other mold The die head is characterized in that a non-ejection part is formed in contact with the base, and the base is integrally formed and extends over the entire width of the plurality of ejection blocks and the plurality of non-ejection blocks .
[0011]
According to the present invention, at least one mold has a support body and a block body, and the block body has a base, and a discharge block and a non-discharge block on the base. The position of the discharge block can be determined with high accuracy. In addition, since the block body including the base, the discharge block, and the non-discharge block is integrally attached to the support body, the discharge block and the non-discharge block can be easily and accurately assembled to one mold.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a die head according to the present invention.
[0013]
As shown in FIGS. 1 and 2, the die head 10 applies a coating portion to the web W in a strip pattern. That is, the die head 10 includes one mold 11 and the other mold 12 fitted to the one mold 11, and a manifold 16 into which the coating liquid flows between the one mold 11 and the other mold 12. Is formed.
[0014]
Of these, one mold 11 constitutes a downstream mold, and the other mold 12 constitutes an upstream mold.
[0015]
One mold 11 includes a support body 11a and a block body 15 that is detachably fixed to the distal end side of the support body 11a. The block body 15 includes a base 13 and a plurality of discharge blocks 14 a and a plurality of non-discharge block bodies 14 b arranged alternately on the base 13.
[0016]
The discharge block 14a forms a gap with the other mold 12, and this gap serves as a discharge port 18 for the coating liquid. Further, the non-ejection block 14b forms a non-ejection portion 19 that comes into contact with the other mold and stops the coating liquid from flowing out.
[0017]
Each discharge block 14a is fixed to the base 13 by bolts 23a and 24a, and each non-discharge block 14b is fixed to the base 13 by bolts 23b and 24b.
[0018]
The base 13 is fixed to the support 11a by bolts 22 and 21.
[0019]
Next, a method for assembling the die head will be described.
[0020]
First, as shown in FIG. 2, the discharge block 14a and the non-discharge block 14b are alternately arranged on the base 13, and the discharge block 14a and the non-discharge block 14b are placed on the base 13 by the bolts 23a and 24a and the bolts 23b and 24b. Fix it.
[0021]
Thus, the block body 15 can be configured by accurately positioning and fixing the discharge block 14a and the non-discharge block 14b with respect to the base 13.
[0022]
Next, the block body 15 composed of the base 13, the discharge block 14a, and the non-discharge block 14b is integrally disposed on the support 11a. Next, the base 13 of the block body 15 is fixed to the support body 11a using the bolts 21 and 22, and thus, one mold 11 is constituted by the block body 15 and the support body 11a.
[0023]
The die head 10 is obtained by fitting the other die 12 to the one die 11 thus configured. In this case, the discharge block 14 a forms a discharge port 18 between the other mold 12 and the non-discharge block 14 b contacts the other mold 12 to form a non-discharge portion 19.
[0024]
When it is desired to change the discharge shape of the discharge port 18, for example, the width of the discharge port 18 (distance between the non-discharge portions 19) and the gap of the discharge port 18 (distance between the discharge block 14 a and the other mold 12), 13, the block body 15 composed of the ejection block 14a and the non-ejection block 14b is removed from the support body 11a as a whole and replaced with a new block body 15.
[0025]
As described above, according to the present embodiment, the block body 15 including the base 13, the discharge block 14a, and the non-discharge block 14b is integrally attached to or detached from the support 11a. 14b can be easily and easily assembled to one mold 11 with high accuracy.
[0026]
For this reason, it is possible to accurately apply the coating liquid to the web W in a belt-like pattern by using the die head 10 composed of one mold 11 and the other mold 12.
[0027]
【The invention's effect】
As described above, according to the present invention, the ejection block and the non-ejection block can be easily and accurately assembled to one mold, so that the ejection port and the non-ejection portion are accurately formed by the ejection block and the non-ejection block. be able to. 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 perspective view showing an embodiment of a die head according to the present invention.
FIG. 2 is a perspective view showing a block body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Die head 11 One type | mold 12 The other type | mold 13 Base 14a Discharge block 14b Non-discharge block 15 Block body 18 Discharge port 19 Non-discharge part 21, 22, 23a, 23b, 24a, 24b Bolt

Claims (2)

One mold and
With the other mold fitted to one mold,
One mold has a support and a block provided on the tip side of the support,
The block body has a base, a plurality of discharge blocks and a plurality of non-discharge blocks alternately arranged on the base, the discharge block forms a discharge port with the other mold, and the non-discharge block is the other To form a non-ejection part in contact with
The base is integrally formed and extends over the entire width of the plurality of ejection blocks and the plurality of non-ejection blocks .   The die head according to claim 1, wherein the block body is detachably fixed to the support body.

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