JPH0994504A - Die coater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a die coater so that a pig for shutting a flow route employed as a coating material changing means can be caught reliably, regarding a die coater provided with a die by which adjustment of the coating width and alteration of coating materials are carried out efficiently and easily without disassembling the die. SOLUTION: This die coater is provided with a die constituted in such a manner that deckle shafts 2 whose tip end outer circumferences are made to be liquid-tight and in which coating flow routes are formed are installed respectively in the right and left of the inside of a manifold, a pig 8 for shutting the flow routes is arranged liquid-tightly and movably in the coating flow routes 21 in the insides of the deckle shafts 2, and that catch bars 6 as engaging mechanisms for the pig are installed in the base end sides of respective deckle shafts 2. The catch bars 6 are so formed as to move back and forth freely, and at the time when the pig 8 moves, the bars are kept in an extruded state for a prescribed time by a timer and then, due to the pushing back force of the pig system 8 coming into collision against the tip ends of the catch bars 6, the bars 6 are moved backward and detect the pig 8 and engage the pig 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die coater, and more specifically, it is possible to easily adjust the coating width without disassembling the die, and to change the coating efficiently and easily. The present invention relates to a die coater equipped with a die that can be used for various purposes, and particularly to a die coater with improved paint changing means.

[0002]

2. Description of the Related Art Conventionally, a die coater has been used as a coating apparatus for a running sheet surface. The die coater is configured by forming a manifold by upper and lower molds, and including a die having a slit formed at a tip end extending from the manifold. It is important to adjust the coating width in the coating operation, and the applicant has already applied for a patent for a die coater equipped with a die that can easily adjust the coating width without disassembling the die ( Japanese Patent Application Laid-Open No. 6-198240) has also applied for a patent for a die coater equipped with a die that can efficiently and easily change the coating material without disassembling the die (Japanese Patent Application Laid-Open No. 6-47334).
Issue). Further, the present applicant has filed a patent application for an invention obtained by improving the invention described in JP-A-6-47334 (Japanese Patent Application No. 7-16081).

In the die coater described in Japanese Patent Laid-Open No. 6-198240, a die coater in which the outer periphery of the tip end portion is formed in a liquid-tight state with respect to the inner wall of the manifold on the left and right sides in the manifold, and a paint passage is formed inside Kell shafts are arranged, and each deckle fixed to the tip of each deckle shaft is placed in a liquid-tight state on both sides of the slit, and the distance between the deckles is increased by the forward and backward movement of the deckle shaft. To adjust the coating width.

In the die coater described in Japanese Patent Laid-Open No. 6-47334, a flow path blocking pig is arranged in a die manifold so as to be liquid-tight and movable, and the pig is moved by a drawstring before and after the moving pig. Change the paint by dividing the paint introduction path into two.

The improved invention described in Japanese Patent Application No. Hei 7-16081 utilizes a die coater described in Japanese Patent Application Laid-Open No. 6-198240 to cut a drawstring in a die coater described in Japanese Patent Application Laid-Open No. 6-47334. The purpose of the present invention is to solve the problem caused by the problem.

In the above die coater, the deckle shafts having the outer periphery of the tip portion in a liquid-tight state with respect to the inner wall of the manifold and having the paint flow passage formed therein are arranged on the left and right sides in the manifold, respectively. Each deckle fixed to the tip of each deckle shaft is placed in a liquid-tight state on both sides of the slit, and a flow path blocking pig is placed in the paint flow passage inside the deckle shaft in a liquid-tight and movable manner. A pig locking mechanism is provided on the base end side of the deckle shaft, and the coating width is adjusted by changing the distance between each deckle by moving the deckle shaft forward and backward to adjust the coating width of each piggle deckle. Change the paint by moving the shaft toward the base end. The movement of the pig is performed by the pressure of the newly supplied paint when changing the paint.

[0007]

The object of the present invention is to easily adjust the coating width without disassembling the die, and to change the coating efficiently and easily. A die coater provided with a die, and in particular, an improved die coater capable of reliably catching the movable pig used as a paint changing means without malfunction.

[0008]

That is, the gist of the present invention is that a manifold is formed by upper and lower molds, a slit is formed at a tip end extending from the manifold, and a tip end outer periphery is formed on the left and right inside the manifold. Are arranged in a liquid-tight state with respect to the inner wall of the manifold, and the deckle shafts in each of which the paint flow path is formed are arranged, and the respective deckles fixed to the tip of the respective deckle shafts are provided on both sides of the slit. Is placed in a liquid-tight state, and a flow-blocking pig is placed in the paint flow passage inside the deckle shaft so as to be liquid-tight and movable, and a catch bar as a locking mechanism for the pig at the base end side of each deckle shaft. Then, the coating width is adjusted by changing the distance between each deckle by moving the deckle shaft forward and backward to adjust the deckle shuffling of the pig. In the die coater having a die which has been made so as to change the paint by moving proximally,
The above-mentioned catch bar is configured to be able to move forward and backward, and when the pig is moved, the timer holds the protruding state for a certain period of time, and then it is retracted by pressing the pig that collided with the tip of the catch bar to detect the pig. It exists in a die coater characterized in that it is adapted to be locked.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a partial explanatory view of an example of a die coater according to the present invention, FIG. 2 is an explanatory view of an example of a deckle moving mechanism in the die coater according to the present invention, and FIGS.
FIG. 4 is a partial explanatory view of an example of a die coater according to the present invention viewed from a horizontal cross section, FIG. 3 shows a deckle portion, FIG. 4 shows a left deckle shaft base portion, FIG. 5 shows a right deckle shaft base portion, and FIG. FIG. 7 is an explanatory view of constituent elements of an example of deckle, FIG. 7 is an assembly explanatory view of the deckle shown in FIG. 6, FIG. 8 is an explanatory view of an example of a flow path blocking pig in the die coater according to the present invention, and FIG. FIG. 8 is an explanatory view of the pig locking structure shown in FIG. 8, and FIG. 10 is an explanatory view of an example of an approaching / separating pattern of the tips of the respective deckle shafts in cleaning the inside of the die.

The die (1) of the die coater according to the present invention is
Basically, as shown in FIG. 1, the upper and lower molds (11) and (12) form a manifold (13), and a slit (14) is formed at a tip portion extending from the manifold. It As shown in the figure, a deckle shaft (2) is arranged in the manifold (13), and the deckle (3) fixed to the tip of the deckle shaft is liquid-tight in the slit (14). Arranged and configured. Reference numeral (21) in FIG. 1 represents a paint flow channel formed inside the deckle shaft (2).

As shown in FIG. 2, two deckle shafts (2) are symmetrically inserted in the manifold (13) from the left and right sides thereof. Each deckle block (4) is provided on the base end side of each deckle shaft (2), and each deckle shaft (2) is moved by the moving mechanism (7) to each deckle block (4). It can be moved integrally with 4). Then, by moving the deckle shaft (2) in the manifold (13), the distance between the deckles (3) is changed, and the coating width is adjusted.

The moving mechanism (7) includes a manifold (13).
A pair of left and right ball screws (71) arranged in parallel with
Each moving base (72) screwed to these and supporting each deckle block (4) and attached to a die bed (15) arranged from the lower part of the die (1) to the back surface and each ball screw (71). ) And each motor (73) connected to the tip. Each deckle shaft (2) moves in the manifold (13) in either the left or right direction by the forward or reverse rotation of each motor. Each motor (73) is configured so that each ball screw (71) can be independently rotated by a control device (not shown).

As shown in FIG. 3, the deckle shaft (2) is provided with a ground packing (23) on the outer peripheral portion of the deckle (3) at a position corresponding to the base portion of the deckle shaft (2), so that the outer periphery of the tip end portion of the manifold (13) is formed. It is liquid-tight to the inner wall. A paint flow path (21) is formed inside the deckle shaft (2), and a flow path blocking pig (8) is provided in the paint flow path (21) as shown in FIGS. 4 and 5. It is arranged liquid-tight and movable. The pigment (8) is used so that the paint can be changed efficiently and easily. An O-ring is embedded in the end surface of the enlarged diameter tip portion (22) of at least one of the deckle shafts (2), and the respective deckle shafts (2) are butted against each other in a liquid-tight manner during a cleaning operation described later. It is made to be able to do.

The deckle (3) is made of a solvent resistant resin sheet (for example, Teflon sheet), and as shown in FIGS. 6 and 7, a metal sheet thinner than the deckle (3) (for example, SUS sheet) on both side edges thereof. Support plate (32)
It has each. Each support plate (32) has its base bent in a substantially L-shape, and is erected by embedding the L-shaped bent portion in each deckle ring (31) fitted and fixed to the deckle shaft (2). Both side edges of the fixed deckle (3) and the side edges of each support plate (32) contacting the deckle (3) are fixed to each other. The embedding of each support plate (32) in each deckle ring (31) is substantially L of each deckle ring (31) formed by the wire saw.
This is performed by inserting the L-shaped bent portion of each support plate into the L-shaped bent groove.

Then, as shown in FIG. 7, a protective ring (36), a deckle ring (31), and a gland packing (23) are provided from the base end side of the deckle shaft (2) to the enlarged diameter front end (22) side. ), (23), Dickel ring (3
The deckle (3) is sandwiched and fixed between the support plates (32) by sequentially inserting 1), the protection ring (36) and the pressing pipe (34). At this time, each washer (33) is arranged at each end of each deckle ring (31). Then, as shown in FIGS. 4 and 5, the pressing pipe (34) has a nut (35) screwed into a male screw on the outer periphery of the base end portion thereof, which is rotationally moved to the pressing plate (24) side described later. Thus, it is pressed to the side of the enlarged diameter tip (22). As the washer (33), a known metal washer can be used.

The outer diameter of each protection ring (36) is the same as that of each deckle ring (31) and the holding pipe (3).
4) is slightly larger than the outer diameter and slightly smaller than each ground packing (23). As a result, each protection ring (3
Only 6) will come into contact, and the deckle ring (3
1) The contact of the holding pipe (34) and the like is prevented, and the movement of the deckle shaft (2) in the manifold (13) is facilitated. According to the above configuration, each deckle ring (31) is tightened and fixed in the axial direction of each deckle shaft (2) via each washer (33). As a result, damage or dropout of the deckle (3) is prevented without damaging the liquid-tight state of the deckle (3) with respect to the slit (14).

As shown in FIGS. 8 and 9, the pig (8) is
At both ends of the cylindrical main body (81), cylindrical locked portions (8
2) are screwed coaxially, and the main body (8)
Two O-rings (85) and (85) are fitted to 1), and a disc-shaped scraper (86) is arranged between the main body (81) and each locked portion (82). Become. A locked hole (84) having a diameter smaller than the inner diameter of the locked portion is provided on the end face side of the locked portion (82).

Two O-rings (85) and (85)
Is the paint channel (21) inside the deckle shaft (2)
It has a function of making contact with the liquid-tight state in a liquid-tight state, blocking the flow path, and maintaining the posture of the pig (8) horizontal during movement.
The scraper (86) is made of, for example, a Teflon sheet or the like, and has a function of coming into contact with the inner wall of the paint channel (21) and scraping the paint adhering to the inner wall. That is, the scraper (8) when contacting the inner wall of the paint flow channel (21)
The amount of deflection of 6) is the corners on both ends of the main body (81) and the locked parts (82) on the side in contact with the scraper (86).
It is regulated by the chamfered shape provided at the corners of the corners, whereby excessive scraping of the scraper (86) is prevented and an effective scraping function is exhibited. Locked hole (8
4) engages with the tip portion of a catch bar (6) described later to achieve the lock / unlock function of the pig (8). A plurality of holes (83) are formed around the locked portion (82), and the holes allow the cleaning liquid in the locked portion (82) to pass therethrough to promote cleaning of residual paint. Have the function to

As shown in FIGS. 4 and 5, each deckle shaft (2) and each deckle block (4) provided on the base end side thereof are integrated by the following structure. That is, the deckle shaft (2) is fitted into the end face of the deckle block (4), and the locking flange provided on the outer peripheral face on the base end side is locked from the outer circumference by the holding plate (24). And the holding plate (2
4) has a two-part structure, which is fitted to the outer peripheral surface of the deckle shaft (2) and then screwed to the end surface of the deckle block (4).

Inside the deckle block (4), there is formed a paint flow passage (41) coaxially connected to the paint flow passage (21) inside the deckle shaft (2), and the paint flow The proximal end side of the path (41) (opposite to the deckle shaft (2)) can release the liquid-tight state of the pig (8) that is liquid-tightly and movably arranged in the paint flow channel (21). It has been expanded to some extent.

The catch bar (6) is inserted through the paint flow path (41) of the deckle block, and the pig (8) can be locked by driving the catch bar.
The drive mechanism of the catch bar (6) is arranged at the end of the deckle block (4) and the housing (62) through which the base end of the catch bar (6) is inserted, the inner wall of the housing and the catch bar (6). A spring (63) interposed between the dog (61) fixed to the housing and a bias (63) for urging the catch bar (6) toward the deckle shaft (2), the housing (6).
The position of the cylinder device (64) fixed to 2), the rotary actuator (65) attached to the piston rod of the cylinder device and rotating the catch bar (6) protruding from the housing (62), and the position of the dog (61) are changed. It is composed of a sensor (66) for detecting and a timer device (not shown) for releasing the pressing control of the cylinder device.

A paint supply passage (42) is provided on the base end side of the paint passage (41), and an on-off valve (5) is provided in the paint supply passage.
A flexible conduit (51) is connected via 2). A paint discharge passage (43) is provided on the tip end side (Dickel shaft (2) side) of the enlarged diameter portion of the paint flow passage (41), and two open / close valves (54) and (55) are provided in the paint discharge passage. A flexible conduit (53) is connected via An air supply path (44) is provided on the base end side of the paint flow path (41). The air supply path is connected to a flexible conduit (58) via a branch pipe (58) and an on-off valve (57). 56) are connected. In addition, one end side of the branch pipe (58) is provided with a blind cap and used as a solvent injection port.

The catch bar (6) is arranged at a position deviated from the axis of the paint flow path (41) of the deckle block with respect to the axis of the paint flow path (41), and as shown in FIG. , A disc (60) is provided eccentrically with respect to the axis of the catch bar (6). With such a configuration, the center of the disk (60) coincides with the axis of the paint flow path (41) at a predetermined rotation position of the catch bar (6), and at a position 180 ° different from the predetermined position. (4
Deviates from the axis of 1). On the other hand, the diameter of the locked hole (84) formed on the end face side of the pig (8) is such that the disk (60) can pass through and is smaller than the inner diameter of the locked portion (82). There is.

The coating operation by the die coater constructed as described above is performed as follows. In addition, the following description of the coating operation is mainly performed based on FIGS. 3 to 5 and 10.

<1. Coating Operation with Paint (A)> As shown in FIG. 3, the paint (A) (not shown) passes through the paint channel (21b) of the deckle block (4b) and deckle shaft (2b) to the manifold ( After being supplied to 13), it is applied to the surface of a running sheet (not shown) which is formed in a thin film by the slit (14). The coating width can be adjusted by changing the distance between the right and left deckles (3a) and (3b) by moving the deckle shafts (2a) and (2b) in the manifold (13). .

In the above case, as shown in FIG. 4, the pig (8) is locked by the catch bar (6a) in the deckle block (4a) at a position indicated by an imaginary line. During the above-described coating operation by supplying the paint from the deckle block (4b) side, the paint supply and discharge line on the deckle block (4a) side is subjected to a solvent cleaning operation described later.

<2. Color change operation to paint (B)>
The deckle shafts (2a) and (2b) shown in FIG.
1b) is integrated. The movement of each deckle shaft is
This is performed by the moving mechanism (7) shown in FIG. Then
In FIG. 4, the rotary actuator (65a)
Is rotated by 180 ° to unlock the pig (8) with the cache bar (6a). Of the on-off valves (52a), (54a), and (55a) opened with the cleaning operation on the deckle block (4a) side, the on-off valve (5)
5a) is closed and the paint (B) is placed in the paint flow path (41a) from the flexible conduit (51a) through the paint supply path (42a).
(Not shown).

In the above case, the deckle block (4a)
The open / close valve (52b) in the open state is closed to stop the supply of the paint (A), and the open / close valves (54b) and (55b) in the closed state serve as the paint discharge path ( 43
Opened to discharge paint (A) from b). In addition,
The on-off valve (57) provided in the air supply path (44)
It is normally closed, and its operation will be described later.

By supplying the paint (B), the paint (B) is
The paint flows from the paint flow path (21a) to (21b). Accordingly, the pig (8) moves the paint flow paths (21a) and (2) from the deckle block (4a) by the hydraulic pressure of the paint (B).
It moves to the deckle block (4b) through 1b) (see FIG. 5). The paint (A) is supplied to the paint discharge passage (43) of the deckle block (4b) by the pig (8).
b). When the pig (8) moves, the scraper (86) of the pig contacts the inner walls of the paint flow paths (21a) and (21b) to scrape the paint (A) adhered to the inner walls. .

Further, in the deckle block (4b), the above-mentioned lock function by the catch bar (6b) of the moved pig (8) is achieved as follows. First, the cylinder device (64b) is retracted, and the catch bar (6b)
Is maintained for a certain period of time. Such a time is set by a timer (not shown), for example, to 20 seconds from the start of the movement of the pig (8). This prevents malfunction of the sensor (66) due to the hydraulic pressure of the paint (A) during the movement of the pig (8). At this time, the catch bar (6b) is held in the unlocked position (the center of the disk (60) coincides with the axis of the paint flow path (41)) before the pig (8) arrives. I have.

Next, after the lapse of the above-mentioned fixed time, the operating pressure (for example, air pressure) of the cylinder device (64b) is released. At this time, the catch bar (6
The projecting state of b) is maintained without being affected by the residual pressure of the paint (A). And catch bar (6b)
Is retracted by the push by the pig (8), and its movement is
The mark provided on the dog (61b) is
b) is detected by sensing.

The rotary actuator (65b) is driven by the above detection signal and the catch bar (6b) is driven.
Is rotated to the locked position (see FIG. 9). As a result, the pig (8) enters the locked state shown in FIG. In addition,
When the pig (8) is moved by the paint (B), it is preferable to increase the rotation speed of the paint supply pump (not shown) from that in the coating operation and to move the pig (8) quickly. By controlling the rotation speed of such a paint supply pump,
The time for the color change operation is shortened, and the productivity of coating is increased.

<3. Cleaning operation> (i) The deckle shafts (2a) and (2b) in the butted state shown in FIG. 10 (a) are separated from each other, and their tips exceed predetermined reference positions (D) and (E). Move to positions (F) and (G) (FIG. 10
(B)). By such a separating operation, the paint (B) is drawn into the separated portions of the deckle shafts (2a) and (2b).

The above-mentioned reference positions (D) and (E) can be set at arbitrary positions in the manifold (13), but the distance between the reference positions (D) and (E) is the deckle. Each gland packing (23a) and (23b) in the butted state of the shafts (2a) and (2b)
The distance is set to be larger than the distance between them. On the other hand, the predetermined positions (F) and (G) are positions separated from the reference positions (D) and (E) by the distance from the tip of the deckle shaft (2) to the ground packing (23) to the deckle block side. It is said.

(Ii) The deckle shaft (2a) is moved to the reference position (D), and the deckle shaft (2b) is moved to the reference position (D) to bring the tips of the two closer (FIG. 10C). ). As a result of this approach operation, the paint (B) drawn into the space between the deckle shafts (2a) and (2b) is rapidly compressed.

(Iii) The deckle shafts (2a) and (2b) are separated from each other and their tips are moved to predetermined positions (F) and (G), and the paint (B) is again drawn into the separated portions (FIG. 10). (D)).

(Iv) The deckle shaft (2a) is moved to the reference position (E), and the deckle shaft (2b) is moved to the reference position (E) so that the tips of the two approaches (FIG. 10 (e)). ).

In the cleaning using the approaching / separating operation, the paint (A) remaining in the closed portion on the tip side of each gland packing (23) of each deckle shaft (2) is compressed. (B) Forced removal by slit (14) through manifold (13)
Emitted from. By repeating the above operations (i) to (iv) an appropriate number of times, more favorable cleaning can be performed. Further, at the time of such washing, it is preferable that the rotational speed of the paint supply pump is lower than that in the coating operation. By controlling the rotation speed of such a paint supply pump,
It is possible to prevent useless loss of the cleaning paint (B) discharged from the slit (14).

In the present invention, in the above cleaning operation, the paint discharge passage (43a) of the deckle block (4a) on the side where the pig (8) is not present is dealt with in order to cope with the high pressure state due to the compressed paint (B). The open / close valve (54a) provided in the above is opened and the open / close valve (55a) is closed.

<4. Preparation for coating operation (air bleeding operation)> The air that has entered the manifold (13) and the paint flow path (21) from the slit (14) by the spacing operation of the deckle shaft (2) at the time of cleaning is In this way, it is removed outside the system of the die (1). In other words, from the locked position of the pig (8), the catch bar (85) until the two O-rings (85) and (85) of the pig (8) are both located at the enlarged diameter portion of the paint flow path (41b). 6b) is further retracted. The retraction of the catch bar (6b) is performed by the forward movement of the cylinder device (64b).

As a result, the air is supplied with the paint (B) which is being supplied to the paint flow paths (21b) and (41).
The paint is discharged from the paint discharge passage (43b) through b). Next, by the retreating operation of the cylinder device (64b), the pig (8) is moved by the two O-rings (85) and (85) into a small-diameter portion (pig) on the leading end side of the enlarged portion of the paint flow path (41b). (The first locked state of (8)). By the above-described air bleeding, coating unevenness during coating of the coating material (B) is prevented.

<5. Coating operation with paint (B)> As shown in FIG. 3, the paint (B) is applied to the deckle shaft (2a).
After being supplied to the manifold (13) through the paint flow passage (21a), the slit (14) forms a thin film and is applied to the surface of the running sheet. At this time, the adjustment of the coating width is performed in the same manner as in the above-described coating operation using the paint (A). During the above coating operation, the pig (8) is locked by a catch bar (6b) in the deckle block (4b) as shown in FIG.

<6. Solvent cleaning> Dickel block (4
The solvent cleaning on the b) side is performed by replacing the paint container connected to the flexible conduit (51b) with a solvent container. That is, the on-off valve (52b) of the paint supply path (42b) is opened, and a solvent is supplied to a circulation line including the paint supply path (42b) and the paint discharge path (43b) to perform solvent cleaning of the paint (A). . Such solvent washing is required in a coating operation for changing colors of three or more colors.

<7. Other Operations> For example, when the die coater is not used for a long time, it is necessary to discharge the paint in the die (1). When the pig (8) is moved when the paint is not present in the die (1) as described above, compressed air supplied from the air supply path (44) is used instead of the paint. In addition, at this time, by pouring a solvent from one end side of the branch pipe (58) to wet the pig (8), the movement can be smoothly performed.

Wetting of the pig (8) with the above-mentioned solvent is carried out in the same manner as in the air bleeding operation described above by using two O- of the pig (8).
This is done by retracting the catch bar (6) until both the rings (85) and (85) are located in the expanded diameter portion of the paint flow channel (41). Pig (8) wetting at restart other than the above can be performed by paint. Pig (8) wetting with the paint is performed by the same retreating operation of the catch bar (6) as described above while supplying the paint to the circulation line described above.

The above embodiment is intended for the cleaning operation when the color is changed by changing the paint. However, the cleaning operation performed by reciprocating the left and right deckle shafts to bring the two tips close to and away from each other Also applicable for solvent cleaning,
The present invention can be effectively applied to the case of dealing with the high pressure state due to the compressed solvent during such solvent cleaning.

In the present invention, the running sheet may be, for example, a metal web such as aluminum, stainless steel, steel or plated steel, and its thickness is usually 0.0.
It is about 5 to 1 mm. On the other hand, as the paint, for example,
A clear paint containing a fluorine resin, a polyester resin or the like as a component, a metallic paint containing aluminum powder or brass powder as a metallic pigment, and an acrylic resin or an alkyd resin as a vehicle resin component may be used.

[0048]

According to the present invention described above, the catch bar, which serves as the locking mechanism of the flow path blocking pig, holds the protruding state for a certain period of time by the timer when the pig is moved. Malfunction due to the hydraulic pressure of the coating material in step 1 is prevented. Further, according to the present invention, since the catch bar is biased by the spring in the protruding direction thereof, the caught pig is reliably caught.

[Brief description of drawings]

FIG. 1 is a partial explanatory view of an example of a die coater according to the present invention.

FIG. 2 is an explanatory diagram of an example of a deckle moving mechanism in the die coater according to the present invention.

FIG. 3 is a partial explanatory view of an example of a die coater according to the present invention when viewed in a horizontal cross section, and is an explanatory view of a deckle portion.

FIG. 4 is a partial explanatory view of an example of a die coater according to the present invention when viewed in a horizontal cross section, and is an explanatory view of a left deckle shaft base portion.

FIG. 5 is a partial explanatory view of an example of a die coater according to the present invention when viewed in a horizontal cross section, and is an explanatory view of a right deckle shaft base portion.

FIG. 6 is an explanatory diagram of components of an example of deckle.

FIG. 7 is an assembly explanatory diagram of the deckle shown in FIG. 6;

FIG. 8 is an explanatory view of an example of a flow path blocking pig in the die coater according to the present invention.

9 is an explanatory diagram of a locking structure of the pig shown in FIG.

FIG. 10 is an explanatory diagram of an example of the approaching / separating pattern of the tips of the respective Dickel shafts in cleaning the inside of the die.

[Explanation of symbols]

 1: Die 11: Upper mold 12: Lower mold 13: Manifold 14: Slit 15: Die bed 2: Dickel shaft 21: Paint flow path 22: Expanding tip 23: Gland packing 24: Pressing plate 3: Dickel 31 : Dickel ring 32: Support plate 33: Washer 34: Holding pipe 35: Nut 36: Protective ring 4: Dickel block 41: Paint flow path 42: Paint supply path 43: Paint discharge path 44: Air supply path 51: Yes Flexible conduit 52: Open / close valve 53: Flexible conduit 54: Open / close valve 55: Open / close valve 56: Flexible conduit 57: Open / close valve 58: Branch pipe 6: Catch bar 60: Disk 61: Dog 62: Housing 63: Spring 64: Cylinder device 65: Rotary actuator 66: Sensor 7: Moving mechanism 71: Ball screw 72 Moving base 73: Motor 8: passage interrupting pig 81: Motor 82: locked portion 83: hole 84: Hikakaritomeana 85: O-ring 86: scraper

Claims (2)

[Claims] 1. A manifold is formed by upper and lower molds, a slit is formed at a tip end extending from the manifold, and outer peripheries of the tip end are liquid-tight to an inner wall of the manifold on the left and right sides of the manifold. Dickel shafts, each of which has a paint flow path formed inside, are respectively arranged, and the respective deckles fixed to the tip of the respective deckle shafts are arranged on both sides of the slit in a liquid-tight state. A flow-blocking pig is placed in the paint flow passage in a liquid-tight and movable manner, a catch bar as a pig locking mechanism is provided on the base end side of each deckle shaft, and the deckle shaft moves forward and backward. Adjust the coating width by changing the distance between each of the above deckles, and change the paint by moving each of the deckle shafts to the base end side of the pig. In a die coater with a die made in, the catch bar is configured to be able to move forward and backward, and when the pig is moved, the catch bar collides with the tip of the catch bar after holding a protruding state for a certain time by a timer. A die coater characterized by being retracted by pressing a pig and detecting and locking the pig. 2. The die coater according to claim 1, wherein the catch bar is biased by a spring in a protruding direction thereof.