JP7182446B2 - Valve and intermittent coating equipment using it - Google Patents

Description

The present invention relates to a valve and an intermittent coating apparatus using the same.

Conventionally, there has been proposed an intermittent coating apparatus that intermittently coats a coating liquid onto a long web such as film, fabric, paper, metal foil, or metal mesh (see, for example, Patent Document 1).

In this conventional intermittent coating apparatus, a valve is provided between a pump for pumping a coating liquid and a die in order to alternately form an uncoated section and a coated section on a web conveyed on a backup roll by means of a die. is provided, and when forming an uncoated section, this valve is closed to stop the supply of the coating liquid to the die, while when forming a coating section, this valve is opened to coat the die Supply liquid.

However, when intermittently coating the metal foil used for the electrode members of recent lithium-ion batteries, the accuracy of the length of the uncoated section and the length of the coated section is lower than before. highly demanded.

Therefore, the present applicant previously proposed an intermittent coating apparatus that performs intermittent coating using a valve using a voice coil motor (see Patent Document 1).

JP 2012-47245 A

In the valve as described above, if an intermittent coating device is used, there is a problem that the coating liquid flows into the voice coil motor, causing the voice coil motor to malfunction.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a valve and an intermittent coating apparatus using the valve that prevent a liquid such as a coating liquid from flowing into an actuator such as a voice coil motor.

The present invention comprises a valve main body, an actuator for extending and contracting a sliding shaft, a connecting body for connecting the valve main body and the actuator, a space provided inside the valve main body through which liquid flows, and a valve provided in the valve main body. an inlet for the liquid provided in the valve body; an outlet for the liquid provided in the valve body; a valve seat provided at the outlet; a valve body for opening and closing the valve seat; a sliding shaft having one end provided with the valve body; a connecting member in the coupling body that connects the other end of the sliding shaft and the sliding shaft; a liquid dripping prevention portion; and a dish-shaped liquid receiving portion provided at a boundary between the connecting body and the actuator and having a liquid receiving through hole through which the sliding shaft passes, wherein the first liquid The drip prevention part is an umbrella-shaped bulb that slopes toward the liquid receiver toward the outer circumference . Further, the present invention provides a valve main body, an actuator for expanding and contracting a sliding shaft, a connecting body for connecting the valve main body and the actuator, a space provided inside the valve main body through which liquid flows, and the valve main body. an inlet for the liquid provided in the valve body, an outlet for the liquid provided in the valve body, a valve seat provided at the outlet, a valve body for opening and closing the valve seat, and from the connecting body to the space a sliding shaft that protrudes and has the valve body provided at one end thereof; a connection member that connects the other end of the sliding shaft and the sliding shaft in the connection body; a first liquid dripping prevention portion; and a dish-shaped liquid receiving portion provided at a boundary between the connecting body and the actuator and having a liquid receiving through hole through which the sliding shaft passes, wherein the liquid In the valve, a cylindrical partition wall is erected on the outer periphery of the liquid receiving through hole in the receiving portion .

According to the present invention, the connection member that connects the sliding shaft and the sliding shaft is provided with the first liquid dripping prevention section, and the liquid that has flowed through the first liquid dripping prevention section drips down to the liquid receiving section, causing the actuator to move. does not flow into

1 is an overall view of an intermittent coating device showing an embodiment of the present invention; FIG. It is a partially cut away side view of a three-way valve. It is an enlarged vertical cross-sectional view of a second connecting body. FIG. 11 is an enlarged vertical cross-sectional view of a boundary member and a spring seal member in the second connecting body;

An intermittent coating apparatus 100 according to one embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG.

(1) Structure of three-way valve 10 First, the three-way valve 10 used in the intermittent coating apparatus 100 will be described with reference to FIG.

The three-way valve 10 is a combination of the first valve 1 and the second valve 2 . That is, the combination valve body 12 is formed by combining the first valve body 3 of the first valve 1 and the second valve body 4 of the second valve 2 . A common space 20 is provided inside the combination valve body 12 .

A coating liquid inlet 14 is opened on the side of the first valve body 3 in the combination valve body 12 .

A cylindrical first outlet 16 opens in the upper portion of the first valve body 3 in the combination valve body 12 .

A cylindrical second outlet 18 opens in the upper portion of the second valve body 4 in the combination valve body 12 .

A common space 20 connects the inlet 14 , the first outlet 16 and the second outlet 18 . Inside this space 20, a first valve seat 22 made of rubber or silicon is formed at the base of the first outlet 16, and a second valve seat made of rubber is formed at the base of the second outlet 18. 24 are formed.

A first valve body 26 for opening and closing the first valve seat 22 is arranged inside the base of the first outlet 16 . A second valve body 28 for opening and closing a second valve seat 24 is disposed inside the base of the second outlet 18 .

A cylindrical first connecting body 5 is provided below the first valve body 3 in the combination valve body 12, and a first voice coil motor ( 7 is provided, hereinafter referred to as a "first VC motor".

A first valve body 26 is attached to the upper end of the first sliding shaft 34 protruding from the first connecting body 5 into the space 20 of the first valve body 3 . The first valve body 26 opens and closes the first valve seat 22 by sliding the first sliding shaft 34 . The lower end of the first sliding shaft 34 is connected via a connecting member 54 to the upper end of the first sliding shaft 30 projecting from the first VC motor 7 . A first position sensor 38 is attached to the lower end of the first sliding shaft 30 . The first position sensor 38 is composed of a linear scale and can detect the position of the first sliding shaft 30 in units of 1 μm.

A cylindrical second connecting body 6 is provided below the second valve body 4 in the combination valve main body 12, and a second voice coil motor ( 8, which is hereinafter referred to as a "second VC motor".

A second sliding shaft 36 protruding from the second connecting body 6 into the space 20 of the second valve body 4 passes through the combination valve body 12 and has a second valve body 28 attached to its upper end. The second valve body 28 opens and closes the second valve seat 24 by sliding the second sliding shaft 36 . The lower end of the second sliding shaft 36 is connected via a connecting member 56 to the upper end of the second sliding shaft 32 projecting from the second VC motor 8 . A second position sensor 40 is attached to the lower end of the second sliding shaft 32 . The second position sensor 40 is composed of a linear scale and can detect the position of the second sliding shaft 32 in units of 1 μm.

(2) Second VC motor 8
Next, the second VC motor 8 will be described with reference to FIG.

A cylindrical outer yoke 42 made of iron is arranged inside the casing 52 of the second VC motor 8 formed in a cylindrical shape, and a ring-shaped magnet 44 is fixed to the inner peripheral surface of the outer yoke 42 . . A cylindrical inner yoke 46 made of iron is disposed inside the cylindrical outer yoke 42, and the outer yoke 42 and the inner yoke 46 are fixed at their lower surfaces. A gap is provided between the outer yoke 42 and the inner yoke 46 .

A cylindrical non-magnetic coil bobbin 48 is disposed axially slidably in the gap between the outer yoke 42 and the inner yoke 46 . A coil 50 is wound around the outer peripheral surface of the coil bobbin 48 and corresponds to the position of the ring-shaped magnet 44 .

A second sliding shaft 32 is fixed through the central portion of the coil bobbin 48 in the axial direction. The second sliding shaft 32 also passes through a cylindrical inner yoke 46 and extends to the second position sensor 40 consisting of a linear scale.

The operating state of the second VC motor 8 will be described.

By applying a direct current to the coil 50 of the coil bobbin 48, a magnetic field is generated between the coil 50 and the ring-shaped magnet 44, and the coil bobbin 48 axially moves together with the second sliding shaft 32 according to Faraday's law. The first sliding speed v1 for moving in the axial direction is determined by the intensity of the DC current flowing through the coil 50. As shown in FIG. The second position sensor 40 detects the position of the second sliding shaft 32 to determine the position to which the second sliding shaft 32 is moved. The DC current flowing through 50 is turned off to stop the sliding of the second sliding shaft 32 .

The first VC motor 7 also has the same structure as the second VC motor 8 and operates in the same manner.

(3) Second connecting body 6
Next, the second connecting body 6 will be described with reference to FIGS. 2 to 4. FIG.

First, as shown in FIGS. 2 and 3, a circular opening 96 for the second sliding shaft 36 to pass through is opened at a position on the opposite side of the second outlet 18 of the second connecting body 6, A tubular protrusion 94 protrudes downward from the edge of the opening 96 .

Further, as shown in FIG. 3 , an upper flange portion 98 is provided on the outer periphery of the upper end of the cylindrical body 58 of the second connecting body 6 , and a lower flange portion 74 is provided on the outer periphery of the lower end of the cylindrical body 58 . .

As shown in FIG. 3, the lower end of the tubular protrusion 94 and the upper flange portion 98 of the tubular body 58 are fixed by bolts (not shown).

As shown in FIG. 3 , a cylindrical support portion 60 is accommodated inside the cylindrical protrusion 94 . A support through hole 62 is provided in the axial direction of the support portion 60 , and the second sliding shaft 36 passes through the opening 96 and the support through hole 62 . The support through-hole 62 is slightly larger than the second sliding shaft 36 so that the second sliding shaft 36 can freely slide.

As shown in FIG. 3 , a slide bearing 64 is housed in the upper portion of the cylindrical body 58 and below the support portion 60 . The slide bearing 64 is penetrated by the second slide shaft 36 and allows the second slide shaft 36 to slide smoothly. The lower end of the second sliding shaft 36 protrudes from the lower portion of the sliding bearing 64 .

As shown in FIGS. 3 and 4, a disk-shaped boundary member 68 is arranged at the center of the upper surface of the second VC motor 8 . A boundary through hole 70 is provided in the center of the boundary member 68 . The boundary through-hole 70 has a diameter slightly larger than the outer diameter of the second sliding shaft 32, and the second sliding shaft 32 is movably penetrated therethrough. A disk-shaped liquid receiver 72 is arranged on the boundary member 68 . A liquid receiving through hole 73 through which the second sliding shaft 32 passes is provided in the center of the liquid receiving portion 72 . The liquid receiving through-hole 73 has a diameter slightly larger than the outer diameter of the second sliding shaft 32, and the second sliding shaft 32 passes therethrough so as to be movable.

As shown in FIGS. 3 and 4, the lower flange portion 74 of the cylindrical body 58 is mounted on the upper portion of the liquid receiving portion 72, and the lower flange portion 74 of the cylindrical body 58, the liquid receiving portion 72, the pedestal 66, and the second base 66 are mounted. A 2VC motor 8 is integrally fixed with bolts (not shown).

As shown in FIG. 3 , the lower end of the second sliding shaft 36 and the upper end of the second sliding shaft 32 are connected by a connecting member 56 inside the cylindrical body 58 . The connecting member 56 is a cylindrical clevis. That is, the upper portion of the connecting member 56 has a U-shaped recess 76 . Also, the lower end of the second sliding shaft 36 is tapered. The tapered lower end of the second sliding shaft 36 fits into the recess 76 and is rotatably fixed to the upper portion of the connecting member 56 by a pin 78 . A female threaded portion is formed on the lower portion of the connecting member 56 , and a male threaded portion formed on the upper portion of the second slide shaft 32 is screwed thereon and fixed with a nut 80 .

As shown in FIG. 3 , a liquid dripping prevention portion (first liquid dripping prevention portion) 82 protrudes from the lower end of the cylindrical connecting member 56 . The liquid dripping preventing portion 82 is formed integrally with the connecting member 56, and is inclined downward, that is, in the direction of the second VC motor 8, so that the diameter thereof increases outward, and is shaped like an umbrella. It has become.

As shown in FIGS. 3 and 4, the liquid receiver 72 is made of a metal member (for example, polytetrafluoroethylene (Teflon, registered trademark)). In the liquid receiving portion 72, a cylindrical partition wall 84 is erected toward the connecting member 56 at a position outside the liquid receiving through hole 73 through which the second sliding shaft 32 passes. The outer diameter of the partition wall 84 is smaller than the maximum outer diameter of the liquid dripping prevention portion 82 . Further, a ring-shaped protrusion 86 is formed at a position outside the partition wall 84 of the liquid receiver 72 and coincident with the inner peripheral wall of the cylindrical body 58 to form a dish. The height of this protrusion 86 is formed lower than that of the partition wall 84 .

As shown in FIG. 3, a ring-shaped top liquid dripping prevention portion (second liquid dripping prevention portion) 88 is attached to the outer circumference of the second sliding shaft 36 between the sliding bearing 64 and the connecting member 56. there is The upper liquid dripping preventing portion 88 is formed in an umbrella shape so that the diameter thereof increases in the downward direction, that is, in the direction of the second VC motor 8 . The upper liquid dripping prevention part 88 is a separate body from the second sliding shaft 36, and is fitted into the ring-shaped upper liquid dripping prevention part 88 before fixing the second sliding shaft 36 to the connecting member 56. .

As shown in FIGS. 3 and 4, a ring-shaped groove 90 is provided on the outer periphery of the boundary through-hole 70 of the boundary member 68 and on the lower surface of the boundary member 68, that is, on the second VC motor 8 side. there is As shown in FIG. 4, a ring-shaped spring seal member 92 having a U-shaped vertical cross section is fitted in the groove 90 . In this case, the convex portion side of the spring seal member 92 having a U-shaped vertical cross section is fitted so as to face the second VC motor 8 side. The spring seal member 92 is, for example, Omni Seal (registered trademark).

The role of the upper liquid dripping prevention portion 88 will be described with reference to FIG. The coating liquid leaks from the opening 96 of the combination valve main body 12 and enters the second connecting body 6 along the second sliding shaft 36, and the coating liquid runs along the second sliding shaft 36 and drips. It is assumed that the blocking portion 88 is reached. Then, since the upper liquid dripping prevention portion 88 is umbrella-shaped, the coating liquid runs along the upper surface of the upper liquid dripping prevention portion 88 and drips from the outer end portion. The dripped coating liquid accumulates between the partition wall 84 and the protrusion 86 of the liquid receiver 72 . As a result, the second VC motor 8 is not reached.

However, the coating liquid passing through the upper liquid dripping prevention portion 88 and further along the second sliding shaft 36 sometimes reaches the lower liquid dripping prevention portion 82 . At this time, as shown in FIG. 3, the coating liquid flows along the upper surface of the umbrella-shaped lower liquid dripping prevention portion 82 to the outer end, and the coating liquid drips down. The dripped coating liquid accumulates between the partition wall 84 and the protrusion 86 of the liquid receiver 72 . As a result, the current does not flow to the second VC motor 8 .

However, as shown in FIGS. 3 and 4, the coating liquid passing through the upper liquid dripping prevention portion 88 and the lower liquid dripping prevention portion 82 and flowing along the second sliding shaft 32 is blocked by the spring seal member 92 and is cut vertically. It accumulates in the U-shaped portion of the surface. Therefore, the coating liquid does not flow through the second VC motor 8 .

The coating liquid accumulated in the liquid receiver 72 and the spring seal member 92 is removed when the three-way valve 10 is disassembled and cleaned.

The inside of the first connecting body 5 also has a structure similar to that of the second connecting body 6 .

(4) Configuration of Intermittent Coating Apparatus 100 Next, the configuration of the intermittent coating apparatus 100 will be described with reference to FIG. A long web W (for example, metal foil), which is a material for electrode members of a lithium ion battery, is run at a predetermined running speed V by backup rolls 102 . A die 104 for intermittently coating the web W with a coating liquid is arranged on the side of the backup roll 102 . A liquid reservoir 106 is provided inside the die 104 , and the discharge port 109 of the die 104 is reached from the liquid reservoir 106 through the slit 108 . A guide roll 130 and a guide roll 132 for guiding the web W are rotatably provided in front of and behind the backup roll 102 . The die 104 or the backup roll 102 is movably supported by an air cylinder in order to adjust the gap g between the discharge port 109 of the die 104 and the web W running on the backup roll 102 .

As shown in FIG. 1, a tank 110 is provided for storing the coating liquid. A metering pump 112 is provided for sucking the coating liquid from the tank 110 through a suction pipe 113 . Metering pump 112 is driven by pump motor 114 . A pumping pipe 116 is provided between the metering pump 112 and the inlet 14 of the three-way valve 10 , and the metering pump pumps a constant amount of coating liquid per unit time to the three-way valve 10 via the pumping pipe 116 .

As shown in FIG. 1, one end of a liquid supply pipe 118 is connected to the first outlet 16 of the three-way valve 10, and the other end of the liquid supply pipe 118 is connected to the coating liquid inlet 120 of the die 104. It is One end of a circulation pipe 122 is connected to the second outlet 18 of the three-way valve 10 , and the other end of the circulation pipe 122 is provided in the tank 110 . A throttle valve 124 is provided in the middle of the circulation pipe 122 .

(5) Electrical Configuration of Intermittent Coating Apparatus 100 The electrical configuration of the intermittent coating apparatus 100 will be described with reference to FIG.

A controller 126 comprising a computer includes a travel motor 128 for rotating the backup roll 102, a pump motor 114 for driving the metering pump 112, the first VC motor 7 and the second VC motor 8 of the three-way valve 10, the first position sensor 38, and the , the second position sensor 40 is connected respectively.

(6) Operating State of Intermittent Coating Apparatus 100 Next, the operation of performing intermittent coating to form a coated section L1 and an uncoated section L2 on the web W using the intermittent coating apparatus 100 is shown in FIGS. will be explained based on

When forming the coating section L1 on the web W, the operator fills the tank 110 with the coating liquid to a reference amount, and sets the gap g, which is the gap between the discharge port 109 of the die 104 and the web W, to the reference gap. Set to g0.

The control unit 126 causes the web W to run at a running speed V, opens the first outlet 16 of the three-way valve 10, closes the second outlet 18, and pumps the coating liquid from the tank 110 by the metering pump 112. Then, the coating liquid is pressure-fed to the die 104 via the three-way valve 10 . The coating liquid pressure-fed to the die 104 passes through the slit 108 from the liquid reservoir 106 and coats the running web W at the discharge port 109 .

At this time, the control unit 126 moves the first sliding shaft 34 at the first reference sliding speed v0, opens the first outlet 16, closes the second outlet 18, and coats the web W. The coating of the working liquid is started to form the coating section L1. The sliding stop position of the first sliding shaft 34 when the first valve body 26 is opened is detected by a first position sensor 38, and when the first sliding shaft 34 protrudes to a predetermined position, , the control unit 126 turns off the DC current flowing through the coil 50 of the first VC motor 7 to stop the sliding of the first sliding shaft 34 . Further, the control unit 126 sets the second sliding speed v2 of the second sliding shaft 36 to be the same as the first reference sliding speed v0 of the first sliding shaft 34 when the second outlet 18 is closed. or slow it down a bit. As a result, when the first outlet 16 is opened, the coating portion is not affected by the pressure change when the second outlet 18 is closed, and the raised portion at the start end of the coating section L1 is not affected. is not formed.

Next, the control unit 126 measures the length of the coating section L1 of the web W from the running speed V, and closes the first outlet 16 when the coating of the coating section L1 is completed. The second outlet 18 is opened. The control unit 126 sets the first sliding speed v1 of the first sliding shaft 34 to close the first outlet 16 at the first maximum sliding speed v1max. On the other hand, the control unit 126 similarly controls the intensity of the DC current flowing through the coil 50 of the second VC motor 8 to open the second outlet 18. The dynamic speed v2 is set at the second maximum sliding speed v2max. The reason for such control is that the more quickly the discharge of the coating liquid is completed, the more the terminal end of the coating section L1 becomes edge-like and the more the swelling can be prevented, and the more quickly the discharge of the coating liquid can be performed. This is because it is necessary to slide the first sliding shaft 34 as quickly as possible to bring the first valve body 26 into the closed state. It should be noted that the sliding when the first sliding shaft 34 is closed stops when the first valve body 26 comes into contact with the first valve seat 22 . Further, the sliding stop position when the second sliding shaft 36 is opened is detected by the second position sensor 40, and the sliding of the second sliding shaft 36 is stopped. As a result, it is possible to prevent the end of the coating section L1 from bulging, and it is possible to accurately coat the length of the coating section L1 to a predetermined length.

Next, the control unit 126 measures the length of the uncoated section L2 of the web W from the running speed V, and when the formation of the uncoated section L2 is completed, the control unit 126 performs the same control as described above so that the three-way valve 10 is first The outlet 16 is opened, the second outlet 18 is closed, and the web W is coated with the coating section L1. When the uncoated section L2 is formed, the first outlet 16 of the three-way valve 10 is closed and the second outlet 18 is open. , through the circulation pipe 122 to the tank 110 . This circulation amount is determined by the throttle valve 124 .

(7) Effect According to this embodiment, the coating liquid leaks from the opening 96 of the combination valve main body 12 and enters the second connecting body 6 along the second sliding shaft 36 to Since the top liquid dripping prevention part 88 is umbrella-shaped, the coating liquid flows and drips outward along the upper surface of the top surface. The dripping coating liquid accumulates in the liquid receiving portion 72 . Therefore, it never reaches the second VC motor 8 .

Further, the coating liquid that has passed through the upper liquid dripping prevention portion 88 and reached the lower liquid dripping prevention portion 82 flows outward along the upper surface of the umbrella-shaped lower liquid dripping prevention portion 82 and drips down. The dripping coating liquid accumulates in the liquid receiving portion 72 . Therefore, it never reaches the second VC motor 8 .

Furthermore, the coating liquid that has passed through the upper liquid dripping prevention portion 88 and the lower liquid dripping prevention portion 82 and flowed to the second slide shaft 32 is blocked by the spring seal member 92 , so that it does not reach the second VC motor 8 . Therefore, the second VC motor 8 does not fail.

Further, since the first connecting body 5 also has the same structure, the coating liquid does not flow to the first VC motor 7, so that it does not malfunction.

(8) Modification In the above-described embodiment, the liquid dripping prevention portion 82 and the connecting member 56 are integrated, but the connecting member 56 and the liquid dripping prevention portion 82 may be configured separately.

Further, in the above embodiment, a VC motor is used as a direct-acting actuator, but the actuator is not limited to this, and another device such as an air cylinder may be used.

Also, in the above embodiment, the connection member 56 having a clevis was used, but a connection member that does not have the clevis and directly connects the second sliding shaft 32 and the second sliding shaft 36 may be used.

While one embodiment of the invention has been described above, this embodiment is provided by way of example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1... 1st valve, 2... 2nd valve, 3... 1st valve body, 4... 2nd valve body, 5... 1st connection body, 6... 2nd connection Body 7... First voice coil motor 8... Second voice coil motor 30... First sliding shaft 32... Second sliding shaft 34... First sliding Shaft 36 Second sliding shaft 54 Connection member 56 Connection member 58 Cylindrical body 60 Support portion 64 Sliding bearing 68 Border member 72 Liquid receiving portion 82 Lower liquid drip prevention portion 84 Partition wall 88 Upper liquid drip prevention portion 90 Groove 92 Spring seal member , 100... intermittent coating device, 102... backup roll, 104... die

Claims (10)

a valve body;
an actuator for expanding and contracting the sliding shaft;
a connector that connects the valve body and the actuator;
a space in which a liquid flows provided inside the valve body;
an inlet for the liquid provided in the valve body;
an outlet for the liquid provided in the valve body;
a valve seat provided at the outlet;
a valve body that opens and closes the valve seat;
a sliding shaft projecting from the connecting body into the space and having one end provided with the valve body;
a connecting member that connects the other end of the sliding shaft and the sliding shaft in the coupling body;
a first liquid dripping prevention portion protruding from the outer periphery of the connecting member;
a dish-shaped liquid receiver provided at the boundary between the connector and the actuator and having a liquid receiver through-hole through which the sliding shaft passes;
has
The first liquid dripping prevention part is an umbrella shape inclined toward the liquid receiving part toward the outer circumference,
valve. Having a second drip prevention part provided on the outer periphery of the sliding shaft,
A valve according to claim 1 . The second liquid dripping prevention part is an umbrella shape that is inclined toward the liquid receiving part toward the outer circumference,
3. A valve according to claim 2 . A sliding bearing for sliding the sliding shaft is provided inside the connecting body,
The second liquid dripping prevention part is provided between the slide bearing and the connecting member,
4. A valve according to claim 3 . a valve body;
an actuator for expanding and contracting the sliding shaft;
a connector that connects the valve body and the actuator;
a space in which a liquid flows provided inside the valve body;
an inlet for the liquid provided in the valve body;
an outlet for the liquid provided in the valve body;
a valve seat provided at the outlet;
a valve body that opens and closes the valve seat;
a sliding shaft projecting from the connecting body into the space and having one end provided with the valve body;
a connecting member that connects the other end of the sliding shaft and the sliding shaft in the coupling body;
a first liquid dripping prevention portion protruding from the outer periphery of the connecting member;
a dish-shaped liquid receiver provided at the boundary between the connector and the actuator and having a liquid receiver through-hole through which the sliding shaft passes;
has
In the liquid receiving portion, a cylindrical partition wall is erected on the outer periphery of the liquid receiving through hole,
valve. a boundary member provided between the liquid receiver and the actuator and having a boundary through-hole through which the sliding shaft passes;
a ring-shaped groove provided on the outer periphery of the boundary through-hole in the boundary member;
a ring-shaped sealing member that fits into the groove and contacts the sliding shaft;
6. The valve of claim 1 or 5 , comprising: The seal member is a U-shaped spring seal member in longitudinal section,
The convex side of the spring seal member is arranged on the actuator side,
7. Valve according to claim 6 . wherein the actuator is a voice coil motor
6. Valve according to claim 1 or 5 . wherein the connecting member is a clevis;
6. Valve according to claim 1 or 5 . a die for applying a coating liquid to a running elongated web;
a tank for storing the coating liquid;
a pump for pumping the coating liquid stored in the tank;
A common space in which the valve body of the first valve, which is the valve according to claim 1 or 5 , and the valve body of the second valve, which is the valve according to claim 1, are combined a three-way valve with
a pumping pipe for supplying the coating liquid from the pump to the inlet of the first valve;
a liquid supply pipe that supplies the coating liquid from the outlet of the first valve to the die;
a circulation pipe for circulating the coating liquid from the outlet of the second valve to the tank;
a control unit that performs intermittent coating that alternately forms coated sections and uncoated sections on the web by opening and closing the outlet of the first valve;
An intermittent coating device having

Images