JP2014008465A - Die head, gathering device, and adjusting method of clearance size of slit of the die head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a die head capable of adjusting supply amount of a coating liquid in a width direction of a web, to band-shaped webs having different printing density in the width direction, and capable of corresponding to the changes of the size of the web width, without replacing a nozzle; a gathering device; and an adjusting method of clearance size of a slit of the die head.SOLUTION: A die head 20 includes: an intermediate member 26 which is interposed between a pair of body blocks 22 and 24, and discharging a coating liquid from a slit 30 formed between an end portion of a first body block 22 and an end portion of the intermediate member 26 when the pair of the body blocks 22 and 24 is superimposed through the intermediate member 26; and slit adjusting means for adjusting the size of the slit 30 to be variable in a width direction of the die head 20.

Description

  The present invention relates to a die head for supplying a coating liquid to a web, a collating apparatus equipped with the die head, and a method for adjusting the size of a slit in the die head.

  Conventionally, an adhesive is applied to a strip-shaped web continuously conveyed from a supply roll, and these webs are bonded and collated by overlapping another strip-shaped web on the web coated with the adhesive. Various types of apparatuses are known (see, for example, Patent Documents 1 to 3).

  For example, Patent Document 1 discloses a method in which a paste supplied to a liquid tank is once transferred to a dip roller, and a paste is applied to the web using the transfer roller, and a fountain roller is used as a paste supply unit. Has been. Patent Document 2 discloses a technique that uses a nozzle for applying glue to a transfer roller. Patent Document 3 discloses an apparatus provided with a mechanism for changing the pressing force of the blade against the transfer roller in order to adjust the film thickness of the adhesive applied to the transfer roller. However, since all of the methods and apparatuses disclosed in Patent Documents 1 to 3 are systems that use a transfer roller when applying the adhesive to the web, there are fluctuation factors in the film thickness of the adhesive applied to the web. Therefore, it is difficult to directly and instantaneously adjust the film thickness of the adhesive applied to the web during actual production, and there is a problem that the yield of the product is lowered. In addition, there is a problem that the running cost is increased by the amount of adhesive used for transfer by the transfer roller.

  As a method for applying a viscous fluid to a web, a coating apparatus and a coating method using a gravure coating method, a kiss coating method, and a die coating method (phanten coating method) are known. For example, Patent Document 4 discloses a coating method using a die coating method as a method for forming a uniform and thin coating film by which a low-viscosity coating liquid can be directly applied to a web. Patent Document 5 discloses a coating method in which high-viscosity glue flows directly between a die head and a web via an edge guide. However, with the methods and apparatuses disclosed in these Patent Documents 4 and 5, even if the formation of a uniform coating film and the adjustment of the coating film discharge pressure and flow rate can be performed, the entire coating film thickness can be adjusted. There is a problem that it is not possible to adjust the film thickness of the coating film in the width direction (left-right direction). That is, it is good if the web to be coated with the coating liquid is smooth and the coating film has a uniform film thickness, but there are irregularities in the patterning layer such as the printing surface and resist mask surface on the surface of the web. There is a problem that even if it is desired to change the film thickness of the coating solution in the width direction of the web, the film thickness of the coating film cannot be adjusted in the width direction of the web.

  Details of the conventional configuration of the die head used in the die coating method will be described with reference to FIG. A conventional die head 80 as shown in FIG. 5 is composed of a pair of rigid body blocks 82 and 84, and a flow path (manifold) 86 of a coating liquid such as an adhesive is provided inside one body block 82. Is provided. A coating liquid supply pipe 88 is connected to one of the main body blocks 82, and a coating liquid supply unit (not shown) is connected to the coating liquid supply pipe 88. Then, the coating liquid is supplied to the flow path 86 of the main body block 82 by the coating liquid supply pipe 88 by a pump or the like. Then, when the pair of main body blocks 82 and 84 are overlapped, the coating liquid is supplied from the slit 90 formed between the front end portions (lower end portions) of the pair of main body blocks 82 and 84 via the flow path 86. The ink is discharged downward in FIG.

  In this way, the coating liquid is supplied from the die head 80 to the belt-like web 92 continuously supplied from a web supply unit (not shown). In FIG. 5, the coating liquid applied to the web 92 is indicated by reference numeral 94. Here, the film thickness of the coating liquid 94 applied to the web 92 depends on the flow rate of the coating liquid supplied to the web 92 by the die head 80 and the tip portion (lower end portion in FIG. 5) of the die head 80. The distance between the web 92 and the web 92 is determined. However, the pair of main body blocks 82 and 84 in the die head 80 are metal plates such as a solvent-resistant stainless steel plate, and the size of the slit 90 (the size in the left-right direction in FIG. 5) is accurately maintained at a predetermined value. Therefore, it is required to process these main body blocks 82 and 84 with high accuracy (specifically, accuracy of 10 μm or less). In the conventional die head 80 as shown in FIG. There is a problem that a mechanism for changing the coating amount of the coating liquid 94 cannot be provided.

  In addition, in the die coating method using the die head 80 and the like as shown in FIG. 5, it is necessary to prepare a die head having a width equivalent to the product width of the web or the like, and when the width of the product changes greatly. Therefore, it is necessary to perform a nozzle replacement operation, which becomes a factor that hinders the operation of the apparatus. In addition, there is a method to reduce the coating width in the die head without replacing the nozzle, and sealing the cover by attaching cover materials such as shims, adhesives, and tapes to both ends of the tip (lower end) of the die head instead. However, each time the product width is changed, there is a problem that the cover material needs to be replaced, and the cover material replacement work may contaminate the die head.

JP-A-2-253955 JP-A-7-185423 Japanese Patent No. 3240554 Japanese Patent No. 4779331 Japanese Patent No. 3296883

  The present invention has been made in consideration of such a point, and an intermediate member is interposed between a pair of main body blocks, and the end of the first main body block and the intermediate member of the pair of main body blocks are provided. By providing slit adjusting means for adjusting the size of the slit formed between the end portion and the die head in the width direction, the web can be applied to the strip-shaped web having a different print density in the width direction. The die head, the collating apparatus, and the collating apparatus capable of adjusting the supply amount of the coating liquid in the width direction of the web, and capable of handling without changing the nozzle even when the width of the web changes It is an object of the present invention to provide a method for adjusting the size of the gap between the slits of the die head.

  The present invention is a die head for supplying a coating liquid to a web, comprising a pair of main body blocks and an intermediate member interposed between the pair of main body blocks, wherein the intermediate member is interposed between the pair of main body blocks. When the pair of body blocks are overlapped, the coating liquid is discharged from a slit formed between the end of the first body block and the end of the intermediate member of the pair of body blocks. And a slit adjusting means for adjusting the size of the slit to be variable along the width direction of the die head.

  According to such a die head, the intermediate member is interposed between the pair of body blocks, and is formed between the end of the first body block and the end of the intermediate member of the pair of body blocks. The slit size is adjusted by the slit adjusting means so as to be variable along the width direction of the die head. This makes it possible to adjust the supply amount of the coating liquid in the width direction of the web to a web such as a strip-shaped web having a different printing density in the width direction. Will be able to do. Further, even when the width of the web to which the coating liquid is to be applied changes, it is possible to cope without changing the nozzle.

  In the die head of the present invention, the slit adjusting means includes a plurality of flow rates provided along a width direction of the die head in a second body block different from the first body block among the pair of body blocks. An adjustment hole, and a pressing member that can be inserted into each of the flow rate adjustment holes provided in the second main body block, and the flow rate adjustment hole provided in the second main body block includes the By inserting the pressing member, the pressing member may press the intermediate member toward the first main body block, and thereby the size of the slit may be adjusted.

  In the die head according to the present invention, the pair of main body blocks and the intermediate member are each provided with positioning holes, and the positioning holes provided in the pair of main body blocks and the intermediate member are positioning members. Can be inserted, and the pair of body blocks and the intermediate member can be positioned by inserting the positioning members into the positioning holes respectively provided in the pair of body blocks and the intermediate member. You may be able to.

  In the die head according to the present invention, the slit adjusting means may include a slit formed between the end of the first main body block and the end of the intermediate member at an arbitrary position in the width direction of the die head. It may be possible to be closed.

  The present invention provides a first web supply unit and a second web supply unit that continuously supply strip-shaped webs, respectively, and a coating liquid supplied to the web supplied by the first web supply unit. The die head described above, and a collating unit that collates these webs by superimposing the web supplied from the second web supply unit on the web supplied with the coating liquid by the die head. It is a collation device.

  The present invention is a method for adjusting the size of a slit gap in a die head for supplying a coating liquid to a web, comprising a pair of main body blocks and an intermediate member interposed between the pair of main body blocks. A slit formed between the end of the first main body block and the end of the intermediate member of the pair of main body blocks when the pair of main body blocks are overlapped via the intermediate member. A die head including a step of preparing a die head including an intermediate member from which a coating liquid is discharged, and a second main body block different from the first main body block among the pair of main body blocks. By inserting the pressing member into a plurality of flow rate adjusting holes provided along the width direction of the intermediate member, the intermediate member is moved toward the first main body block by the pressing member. And adjusting the size of the slit formed between the end portion of the first main body block and the end portion of the intermediate member, thereby pressing the gap between the slits of the die head. This is a method of adjusting the size.

  According to such a method of adjusting the size of the gap of the slit of the die head, by inserting the pressing member into a plurality of flow rate adjusting holes provided along the width direction of the die head, the intermediate member is moved by the pressing member. By pressing toward the first body block side, the size of the slit formed between the end portion of the first body block and the end portion of the intermediate member is adjusted. This makes it possible to adjust the supply amount of the coating liquid in the width direction of the web with respect to the strip-shaped web having a different printing density in the width direction, so that the pair of webs are collated with an optimum adhesive force. Will be able to. Further, even when the width of the web to which the coating liquid is to be applied changes, it is possible to cope without changing the nozzle.

  In the method for adjusting the size of the slit gap of the die head according to the present invention, the pair of body blocks and the intermediate member are provided with positioning holes, respectively, and the pair of body blocks and the intermediate member are provided respectively. A positioning member can be inserted into the positioning hole formed, and the pair of body blocks are inserted by inserting the positioning member into the positioning holes provided in the pair of body blocks and the intermediate member, respectively. And a step of positioning the intermediate member.

  According to the die head, the collating apparatus, and the method for adjusting the size of the slit of the die head according to the present invention, the supply amount of the coating liquid in the width direction of the web is adjusted with respect to the strip-shaped web having a different print density in the width direction. In addition, even when the width of the web is changed, it is possible to cope without changing the nozzle.

It is a block diagram which shows the schematic structure of the collation apparatus provided with the die head by one embodiment of this invention. It is a perspective view which shows the structure of the die head by one embodiment of this invention. It is sectional drawing of the die head shown in FIG. It is a fragmentary sectional view which shows the detail of the structure of the screw for flow volume adjustment in the die head which concerns on a modification, and an intermediate member. It is a perspective view which shows the structure of the conventional die head.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 are diagrams showing a die head according to the present embodiment and a collating apparatus including the die head. Among these, FIG. 1 is a block diagram which shows the schematic structure of the collation apparatus provided with the die head by this Embodiment. 2 is a perspective view showing the configuration of the die head according to the present embodiment, and FIG. 3 is a cross-sectional view of the die head shown in FIG. FIG. 4 is a cross-sectional view showing details of the configuration of the flow rate adjusting screw and the intermediate member in the die head according to the modification.

  First, a schematic configuration of a collating apparatus including a die head according to the present embodiment will be described with reference to FIG. As shown in FIG. 1, a collating apparatus 10 according to the present embodiment includes a first web supply unit 11 and a second web supply unit 12 that continuously supply belt-like webs, respectively. A strip-shaped web is supplied from each of the first web supply unit 11 and the second web supply unit 12. Further, as shown in FIG. 1, the collating apparatus 10 is provided with a die head 20, and a coating liquid (adhesive) is applied to the belt-shaped web supplied from the first web supply unit 11 by the die head 20. It comes to be supplied. Further, the collating device 10 is provided with a collating unit 13, and the web supplied from the second web supply unit 12 to the web supplied with the coating liquid by the die head 20 in the collating unit 13. These webs are collated by overlapping each other. More specifically, a marginal punch hole is formed in each edge of the pair of webs before being sent to the collating portion 13, and when the pair of webs are overlapped in the collating portion 13, The pin tractor is transported using a marginal punch hole provided on the web.

  As shown in FIG. 1, the collating apparatus 10 is provided with a crimping portion 14, a pin tractor transporting portion 15, and a pulling roller 16, and the pair of webs superimposed on the collating portion 13 is a pulling roller 16. Being pulled by. At this time, the pair of webs is pin tractor transported by the pin tractor transport section 15 and then crimped between the pair of pressure rollers by the crimp section 14.

  As shown in FIG. 1, a flow meter 17, a pump 18, and a coating liquid tank 19 are provided as a liquid feeding device for supplying the coating liquid to the die head 20. The coating liquid stored in the coating liquid tank 19 is sent by a pump 18 to a later-described liquid feeding joint 43 in the die head 20.

  Next, the die head 20 according to the present embodiment will be described with reference to FIGS. FIG. 2 is a perspective view showing the configuration of the die head 20 according to the present embodiment, and FIG. 3 is a cross-sectional view of the die head 20 shown in FIG.

  As shown in FIG. 2, the die head 20 according to the present embodiment includes a pair of rigid main body blocks 22, 24 and an intermediate member 26 interposed between the pair of main body blocks 22, 24. Here, the first main body block 22 of the pair of main body blocks 22 and 24 is provided with a flow path (manifold) 28 for coating liquid. As shown in FIG. 2, the die head 20 is provided with a liquid feeding joint 43, and the coating liquid is supplied to the flow path 28 by the liquid feeding joint 43. More specifically, as shown in FIG. 3, a joint insertion portion 44 is in communication with the flow path 28, and the liquid supply joint 43 is inserted into the joint insertion portion 44, whereby the liquid supply joint 43. Thus, the coating liquid is supplied to the flow path 28. Then, when the pair of main body blocks 22 and 24 and the intermediate member 26 are overlapped, the front end portion (lower end portion) of the first main body block 22 and the front end portion (lower end portion) of the intermediate member 26 via the flow path 28. The coating liquid is discharged downward in FIG. 2 from the slit 30 formed between the two.

  Further, as shown in FIG. 2, both side surfaces of the die head 20 are closed by side sealing members 32 in order to seal the flow path 28 of the die head 20. More specifically, the pair of body blocks 22 and 24 are respectively provided with side sealing member fixing screw holes 33, and the screws 34 are connected to the side sealing members via the side sealing members 32 as shown by arrows in FIG. The side sealing member 32 is fixed to both side surfaces of the die head 20 by being inserted into the fixing screw holes 33.

  As shown in FIG. 2, a slit shim 27 is provided between the intermediate member 26 and the first main body block 22, and the slit shim 27 allows the coating liquid flowing through the flow path 28 to flow through the die head 20. This prevents the liquid from being discharged upward. Further, the second main body block 24 different from the first main body block 22 in the pair of main body blocks 22 and 24 is provided with a plurality of die fixing screw holes 37 along the width direction of the die head 20. . Such a die fixing screw hole 37 is also provided in the first main body block 22, the intermediate member 26, and the slit shim 27. Then, as shown in FIG. 2, the first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24 are overlapped in this order, and the die fixing screw holes 37 formed in the respective constituent elements are formed. By inserting the die fixing screw 39 as shown by the arrow in FIG. 2, the first main body block 22, the slit shim 27, the intermediate member 26 and the second main body block 24 are fixed integrally. become.

  As shown in FIGS. 2 and 3, the second main body block 24 is provided with two positioning holes 40 along the width direction of the die head 20. Such positioning holes 40 are also provided in the first main body block 22, the intermediate member 26, and the slit shim 27. Then, as shown in FIG. 2, the first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24 are overlapped in this order, and the two positioning holes 40 formed in each component are formed. Each of the positioning pins 42 is inserted as shown by the arrows in FIG. 2 to position the first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24. Thus, it is possible to prevent a certain component from being displaced from the other components.

  In the die head 20 of the present embodiment, as shown in FIG. 2, a plurality of flow rate adjusting screw holes 36 are provided in the second main body block 24 along the width direction of the die head 20. A flow rate adjusting screw 38 can be inserted into these flow rate adjusting screw holes 36. Then, a flow rate adjusting screw 38 is inserted into a flow rate adjusting screw hole 36 provided in the second main body block 24 as shown by an arrow in FIGS. 2 and 3, and the intermediate member 26 is fixed by the flow rate adjusting screw 38. By pressing the lower end in the left direction in FIG. 3, the size of the slit 30 (the size in the left-right direction in FIG. 3) can be adjusted. That is, when the flow rate adjusting screw 38 does not press the lower end portion of the intermediate member 26, the size of the slit 30 is relatively large, but the flow rate adjusting screw 38 moves the lower end portion of the intermediate member 26 to the left in FIG. The size of the slit 30 gradually decreases as it is pressed in the direction. Further, when the lower end portion of the intermediate member 26 is further pressed leftward in FIG. 3 by the flow rate adjusting screw 38, the front end portion (lower end portion) of the intermediate member 26 and the front end portion (lower end portion) of the first main body block 22 Come into contact with each other, and the slit 30 is partially closed. In the present invention, the flow rate adjusting screw hole 36 and the flow rate adjusting screw 38 constitute slit adjusting means for adjusting the size of the slit 30 to be variable along the width direction of the die head 20.

  The flow rate adjusting screw 38 may be separable from the intermediate member 26 as shown in FIGS. 2 and 3, or the tip portion of the flow rate adjusting screw 38 is connected to the intermediate member 26. It may be. FIG. 4 is a partial cross-sectional view of the die head 20 according to a modification in which the tip end portion of the flow rate adjusting screw 38 is connected to the intermediate member 26. As shown in FIG. 4, the intermediate member 26 is provided with a holding portion 26a for holding the tip portion 38a of the flow rate adjusting screw 38. The holding portion 26a holds the tip portion 38a of the flow rate adjusting screw 38. As a result, the tip end portion 38 a of the flow rate adjusting screw 38 is not separated from the intermediate member 26.

  Next, a method for assembling the die head 20 having such a configuration will be described.

  First, the first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24 are superposed in this order, and the positioning pins 42 are respectively inserted into the two positioning holes 40 formed in each component. The first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24 are positioned by inserting them as shown by the arrows in FIG. Thereafter, a die fixing screw 39 is indicated by an arrow in FIG. 2 in a die fixing screw hole 37 formed in each component of the first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24. Thus, the first main body block 22, the slit shim 27, the intermediate member 26, and the second main body block 24 are integrally fixed. Further, in order to seal the flow path 28 of the die head 20, the side sealing members 32 are fixed to both side surfaces of the die head 20 with screws 34. Further, the liquid feeding joint 43 is inserted into the joint insertion portion 44.

  Further, a flow rate adjusting screw 38 is inserted into a flow rate adjusting screw hole 36 provided in the second main body block 24 as shown by an arrow in FIGS. The size of the slit 30 (the size in the left-right direction in FIG. 3) is adjusted by pressing the lower end portion in the left direction in FIG. Here, since the plurality of screw holes 36 for flow rate adjustment are provided along the width direction of the second main body block 24, the size of the slit 30 is adjusted to be variable along the width direction of the die head 20. Will be able to. Further, the lower end portion of the intermediate member 26 is further pressed in the left direction in FIG. 3 by the flow rate adjusting screw 38, whereby the front end portion (lower end portion) of the intermediate member 26 and the front end portion (lower end portion) of the first main body block 22 are displayed. And the slit 30 is partially closed.

  Thereafter, as shown in FIG. 1, the coating liquid stored in the coating liquid tank 19 is sent to the liquid feeding joint 43 in the die head 20 by the pump 18. As a result, the coating liquid is sent from the liquid feeding joint 43 to the flow path 28 of the die head 20, and the coating liquid is discharged from the slit 30 to the lower side of the die head 20.

  As described above, according to the die head 20 of the present embodiment and the collating apparatus 10 including the die head 20, the intermediate member 26 is interposed between the pair of body blocks 22 and 24 of the die head 20. The size of the slit 30 formed between the end of the first body block 22 and the end of the intermediate member 26 (the size in the left-right direction in FIG. 3) The means is adjusted so as to be variable along the width direction of the die head 20. As a result, the supply amount of the coating liquid in the width direction of the web can be adjusted with respect to the strip-shaped web having a different printing density in the width direction. You will be able to collate. Moreover, even when the width of the belt-like web to which the coating liquid is to be applied changes, it is possible to cope with it without performing a nozzle replacement operation.

  Further, as described above, in the die head 20 of the present embodiment, the slit adjusting means includes a plurality of flow rate adjusting screw holes 36 provided in the second main body block 24 along the width direction of the die head 20, and A flow rate adjusting screw 38 that can be inserted into each flow rate adjusting screw hole 36 provided in the second main body block 24, and the flow rate adjusting screw hole 36 provided in the second main body block 24 has a flow rate. When the adjustment screw 38 is inserted, the flow rate adjustment screw 38 presses the intermediate member 26 toward the first main body block 22, thereby adjusting the size of the slit 30. ing. In the present invention, the slit adjusting means is not limited to the one composed of the flow rate adjusting screw hole 36 and the flow rate adjusting screw 38. As the slit adjusting means, a pressing member other than the flow rate adjusting screw 38 such as a pin is used, and the pressing member is inserted into a plurality of flow rate adjusting holes provided in the second main body block 24. It may be.

  Further, in the die head 20 of the present embodiment, the pair of main body blocks 22 and 24 and the intermediate member 26 are provided with positioning holes 40 respectively, and are provided in the pair of main body blocks 22 and 24 and the intermediate member 26, respectively. Positioning pins 42 can be inserted into the positioning holes 40, and a pair of positioning pins 42 are inserted into the positioning holes 40 provided in the pair of main body blocks 22, 24 and the intermediate member 26, respectively. The main body blocks 22 and 24 and the intermediate member 26 can be positioned.

  Further, in the die head 20 of the present embodiment, the slit adjusting means provides an arbitrary slit 30 formed between the end of the first main body block 22 and the end of the intermediate member 26 in the width direction of the die head 20. It can be partially closed at this point. Accordingly, when the width of the belt-like web to which the coating liquid is to be applied changes, the slit 30 near the end in the width direction of the die head 20 is selectively closed to thereby reduce the width of the web. It becomes possible to cope with a change in the size of the.

  In addition, the die head and collation apparatus in this invention are not limited to said aspect, A various change can be added. For example, the slit adjusting means is not limited to a flow rate adjusting hole provided in the second main body block and a pressing member that can be inserted into the flow rate adjusting hole. As another configuration of the slit adjusting means, for example, an intermediate member provided between a pair of main body blocks is made of a shape memory alloy, and the first main body is deformed by applying electricity to the intermediate member to deform the intermediate member. What can make the magnitude | size of the slit between a block and an intermediate member variable along the width direction of a die head may be used.

DESCRIPTION OF SYMBOLS 10 Collating apparatus 11 1st web supply part 12 2nd web supply part 13 Collating part 14 Crimping part 15 Pin tractor conveyance part 16 Pulling roller 17 Flowmeter 18 Pump 19 Coating liquid tank 20 Die head 22 1st main body Block 24 Second body block 26 Intermediate member 26a Holding portion 27 Slit shim 28 Channel 30 Slit 32 Side sealing member 33 Side sealing member fixing screw hole 34 Screw 36 Flow rate adjusting screw hole 37 Die fixing screw hole 38 Flow rate adjustment Screw 38a Tip portion 39 Die fixing screw 40 Positioning hole 42 Positioning pin 43 Liquid supply joint 44 Joint insertion part 80 Die head 82 Main body block 84 Main body block 86 Flow path 88 Coating liquid supply pipe 90 Slit 92 Band-shaped web 94 Coating liquid

Claims (7)

A die head for supplying a coating liquid to a web,
A pair of body blocks;
An intermediate member interposed between the pair of main body blocks, wherein the end of the first main body block of the pair of main body blocks when the pair of main body blocks are overlapped via the intermediate member And an intermediate member adapted to discharge the coating liquid from a slit formed between the end of the intermediate member,
Slit adjusting means for adjusting the size of the slit to be variable along the width direction of the die head;
Die head with The slit adjusting means is
A plurality of flow rate adjusting holes provided along a width direction of the die head in a second body block different from the first body block among the pair of body blocks;
A pressing member that can be inserted into each of the flow rate adjusting holes provided in the second body block;
Have
By inserting the pressing member into the flow rate adjusting hole provided in the second main body block, the pressing member presses the intermediate member toward the first main body block, thereby The die head according to claim 1, wherein a size of the slit is adjusted. The pair of main body blocks and the intermediate member are each provided with positioning holes, and the positioning members can be inserted into the positioning holes provided in the pair of main body blocks and the intermediate member, respectively. ,
The pair of main body blocks and the intermediate member can be positioned by inserting the positioning members into the positioning holes provided in the pair of main body blocks and the intermediate member, respectively. Item 3. The die head according to Item 1 or 2.   The slit adjusting means can partially close a slit formed between an end of the first main body block and an end of the intermediate member at an arbitrary position in the width direction of the die head. The die head according to any one of claims 1 to 3, wherein the die head is configured as described above. A first web supply unit and a second web supply unit that continuously supply the belt-shaped webs, respectively;
The die head according to any one of claims 1 to 4, for supplying a coating liquid to the web supplied by the first web supply unit,
A collating unit that collates these webs by superimposing the web supplied from the second web supply unit on the web supplied with the coating liquid by the die head;
A collating device with A method for adjusting the size of the slit gap in the die head for supplying the coating liquid to the web,
A pair of body blocks and an intermediate member interposed between the pair of body blocks, the first of the pair of body blocks when the pair of body blocks are overlapped via the intermediate member A step of preparing a die head including an intermediate member configured to discharge a coating liquid from a slit formed between an end of the main body block and an end of the intermediate member;
By inserting a pressing member into a plurality of flow rate adjusting holes provided along the width direction of the die head in a second main body block different from the first main body block among the pair of main body blocks, The intermediate member is pressed toward the first main body block by the pressing member, whereby the size of the slit formed between the end portion of the first main body block and the end portion of the intermediate member. Adjusting the thickness;
A method of adjusting the size of the gap in the slit of the die head. The pair of main body blocks and the intermediate member are each provided with positioning holes, and the positioning members can be inserted into the positioning holes provided in the pair of main body blocks and the intermediate member, respectively. ,
The step of positioning the pair of main body blocks and the intermediate member by inserting the positioning members into the positioning holes provided in the pair of main body blocks and the intermediate member, respectively. To adjust the size of the gap in the slit of the die head.

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