JP2001182888A - Method and device for cleaning pipe connection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device for suitably cleaning both pipes with a reception pipe on the side of fixed equipment connected to a delivery pipe on the side of a moving tank. SOLUTION: A seal mechanism for a delivery device communicated with the delivery pipe connected to the moving tank and a seal mechanism for a reception device communicated with the reception pipe connected to fixed equipment are connected to each other with their distribution ports opposed to each other at a space. A cleaning liquid is supplied from a cleaning liquid supply pipe facing the distribution port in the seal mechanism for the reception device for cleaning the distribution ports in both seal mechanisms. Then, with the distribution ports in both seal mechanisms being communicated facing each other with no space, the cleaning liquid is supplied from the cleaning liquid tank for cleaning the delivery pipe and the reception pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cleaning a pipe connection, and more particularly, to a multi-purpose batch production system employing a moving tank system, for example, in discharging a fluid from a moving tank to a fixed tank. The present invention relates to a method and an apparatus for cleaning a pipe end of a fixed tank and a pipe end of the fixed tank when the fluid is not discharged from the moving tank.

[0002]

2. Description of the Related Art In recent years, diversification and individualization of demands have been further progressed, responding to a wide range of needs of consumers who desire products that are more individual, functional and differentiated than conventional general-purpose products. Therefore, there is an increasing tendency to cultivate new demands by focusing on individualized, high-performance, and high-grade product concepts. In order to respond to the demands of the social trends and times, the conventional low-mix high-volume production system has been switched to a high-mix low-volume production / multi-product variable production system, and further labor saving, efficiency, and automation have been implemented. We need to push it.

A multi-purpose batch production system based on a moving tank system, which has been commercialized by the present applicant, includes a moving carriage on which a moving tank is mounted, which is loaded on an automatic carrier, and which is arranged along a conveying path to perform independent operations. The automatic transport vehicle is moved to a target station among the stations performing the above, and the movable vehicle is transferred from the automatic transport vehicle to the station mount. Since fixed equipment is collectively installed on each of the station mounts so that predetermined operations can be performed efficiently, the moving tank on the mobile trolley transferred to the station mount is connected to these fixed equipment. To perform the required work,
When the work is completed, the movable carriage returns to the automatic carrier from the station gantry, moves to another station gantry, and continuously performs predetermined work, thereby completing the production in the same tank.

[0004]

However, in the production of a moving tank system for automatically connecting and disconnecting a discharge pipe communicating with the moving tank and a receiving pipe communicating with the fixed equipment, for example, food and pharmaceutical products, Or, when producing high-purity chemicals, prevent contamination,
In some cases, it is necessary to shut off contact with the outside air so that dust and the like in the atmosphere do not adhere. At present, no method or device has been established to cut off contact between the pipe and the outside air and to prevent liquid dripping from the pipe end.

In order to solve the above-mentioned problems, the present invention connects the receiving pipe on the fixed equipment side and the discharge pipe on the moving tank side, and can suitably clean both pipes. When the discharge of the fluid is completed, a lid can be fitted to the receiving pipe on the fixed device side to shut off the contact with the outside air, and furthermore, the dripping from the discharge pipe end on the moving tank side is also prevented. The aim is to obtain a method and an apparatus that can do this.

[0006]

In order to achieve the above object, a method of cleaning a pipe connection according to the present invention is directed to a dispensing device which communicates with a dispensing pipe connected to a moving tank mounted on a movable carriage. And a sealing mechanism of the receiving device communicating with the receiving pipe connected to the fixed device so that the respective flow ports face each other with a gap therebetween, and the cleaning liquid supply pipe facing the flow port of the sealing mechanism of the receiving apparatus. To supply the cleaning liquid from the cleaning liquid tank, and then clean the distribution ports of both seal mechanisms. It is characterized in that the pipe and the receiving pipe are washed, and when the seal mechanism of the dispensing apparatus and the sealing mechanism of the receiving apparatus are not connected, the cleaning liquid supply pipe is communicated with the circulation port of the sealing mechanism of the receiving apparatus. And fitting the lid portion, by supplying the cleaning liquid from the cleaning liquid supply pipe if necessary, it is characterized by washing the accept pipes.

The apparatus for cleaning a pipe connecting portion according to the present invention comprises a dispensing apparatus having a seal mechanism communicating with a dispensing pipe connected to a moving tank mounted on a movable carriage, and a receiving pipe connected to fixed equipment. A receiving device having a seal mechanism communicating therewith, and a lid communicating with the cleaning liquid supply pipe and being fitted into a flow opening of the seal mechanism of the receiving device, wherein the receiving device is provided with a cleaning liquid facing the flow opening of the seal mechanism. It has a supply pipe and a cleaning liquid discharge pipe, and is configured to be reciprocally movable from a predetermined position at which the lid is fitted to a predetermined position at which the discharge apparatus is connected, and the seal mechanism of the receiving apparatus is provided at the seal mechanism of the discharge apparatus. It is characterized in that it is configured to be able to move up and down so that it can be connected oppositely. Further, the seal mechanism is characterized by comprising a valve seat provided at a flow path end having a bent portion, and a valve body which can be freely moved toward and away from the valve seat.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, in a multi-purpose batch production system using a moving tank system, when the fluid in the moving tank is discharged to a fixed device, for example, a fixed tank, a discharging pipe on the moving tank side is used. Wash the receiving pipe on the fixed tank side and the pipe ends of both pipes, and after the discharge of fluid, cut off the contact with the outside air so that dust in the atmosphere does not adhere to the receiving pipe on the fixed tank side It is necessary to prevent the liquid from dripping from the pipe end of the discharge pipe on the moving tank side. Therefore, in the present invention, in the moving tank production system, the discharge pipe communicating with the moving tank and the receiving pipe communicating with the fixed tank can be connected, and the respective pipes can be suitably washed, After discharging the fluid to the fixed tank and disconnecting the discharge pipe from the receiving pipe, a lid that shuts off contact with the outside air can be fitted to the receiving pipe, and liquid dripping from the end of the discharging pipe can be prevented. The present invention provides a method and an apparatus capable of performing the above-described steps.

An embodiment of the present invention will be described below based on an embodiment shown in the drawings. FIG. 1 is an overall schematic explanatory view for explaining a multi-purpose batch production system using a moving tank system, FIG. 2 is a schematic sectional side view of a receiving device, FIG. 3 is a schematic sectional side view of a sealing mechanism, and FIG. It is a side sectional view.
FIG. 5 is a schematic side sectional view showing a state where the lid is fitted to the receiving device, and FIG. 6 is a schematic side sectional view showing a state where the payout device is connected to the receiving device.

First, a multipurpose batch production system using a moving tank system will be briefly described. In FIG. 1, reference numeral (2) denotes a movable trolley on which a movable tank (1) is mounted. The movable trolley (2) is loaded on an automatic transport vehicle (3) which moves in a direction perpendicular to the plane of FIG. 4) is moved to the vicinity of each station platform (5) which is disposed on both sides of the station platform (5) and performs individual work independently, and the movable platform (2) is moved from the automatic carrier (3) to the station platform (5). )
The mobile tub (1) is connected to, for example, a fixed tub (not shown) to perform a predetermined operation. When the operation is completed, the mobile trolley (2) is returned from the station gantry (5) to the automatic carrier (3). The transport vehicle (3) moves to the target station base for the next operation, and thereafter, performs the same operation sequentially to complete the production in the same tank.

A receiving device (20) is connected to a receiving pipe (21) connected to the fixed tank via a flexible tube (not shown) or the like, and (10) is a receiving device for receiving the receiving device (20). A cover fitted to a seal mechanism (30) communicating with the pipe (21), and a receiving device (2);
0) is operated by a driving device (not shown), and the cover (1) is operated.
0) from the predetermined position to which the dispensing device (17) connected to the dispensing pipe (18) connected to the moving tank (1), that is, from directly below the lid (10) to the station base. A guide (7) laid in a direction (arrow direction in the drawing) perpendicular to the transport path (4) up to the side of (5).
It is configured to reciprocate along. The lid (10) is fixed to an arm (9) provided horizontally from a support (8) or the like, and is disposed above the receiving device (20).

The receiving device (20) is, as shown in FIG.
It has a base (22) fitted to the guide (7) and capable of reciprocating in the direction of the arrow shown in the figure, and elevating guides (23) are erected on both sides of the base (22). ), A cylinder (24) is provided upright. Elevating guide (23)
The top of the valve support (25) is open, and rods (26) suspended from both bottoms of the valve support (25) are slidably inserted therethrough. (27) is a bearing attached to the inner wall of the top opening of the lifting guide (23). And the valve support (2
In the center bottom of 5), the rod (24) of the cylinder (24)
a) is fixed, and the valve support (25) is configured to move up and down by operation of the cylinder (24).

A central portion of the valve support (25) is formed in a concave shape in a side sectional view, and a receiving pipe (21) is provided in the central portion thereof.
And a seal mechanism (30) communicating with the seal mechanism. (2
5a) is a guide which stands integrally on both sides of the valve support (25), the top of which is open, and the leg (28) of the seal mechanism (30) is inserted therethrough. Further, the tip of the opening inner wall at the top of the guide (25a) protrudes to support the bottom of the fastening plate (29) fixed to the seal mechanism (30) of the receiving device (20).

As described above, the seal mechanism (30) is installed at the upstream end of the receiving pipe (21) of the receiving device (20), and as shown in FIG. 6, the discharging pipe of the discharging device (17). (18) It is also provided at the downstream end. Since both functions are basically the same in function and structure, FIG.
The seal mechanism (30) on the dispensing device (17) side will be described based on FIG. As shown in FIG. 3, the sealing mechanism (30)
Has a flow port (32) at one end and a short pipe (31) integrally forming a flow path having a bent portion communicating with the flow port (32) in an oblique shape in a side view. One end of the short pipe (31) is connected to another pipe, that is, the receiving pipe (2).
1) and a discharge pipe (18).
(33) is a valve seat provided around the flow port (32) which is a flow path end of the seal mechanism (30), and (34) is a valve seat (3).
The valve element (34) is configured to be vertically movable by a cylinder (35) via a rod (36).

(40) The cylinder (35) and the partition (3)
7) is a pneumatic chamber formed in (7), (42) is a pneumatic chamber (4)
0). (38) is a partition (3)
A diaphragm (38) is fixedly inserted in the cylinder in front of (7). (41) is a seal mechanism (30)
A spring attached to the rear side wall in the cylinder of (3)
9) is a fastening plate. Therefore, the air supply pipe (42)
When air is supplied to the pneumatic chamber (40) from the cylinder (35), the cylinder (35) is retracted against the urging force of the spring (41), the valve body (34) is also retracted, and the flow opening (32) is opened, and When air is sucked in from the supply pipe (42), the cylinder (35) moves forward due to the urging force of the spring (41), and the valve element (34) also moves forward to close the flow opening (32).

Since the valve body (34) is pressed against the valve seat (33) by an external driving means such as air and elastically deformed when the pipe is disconnected, the fluid is completely sealed. The sealing surface of 34) is made of an elastic material, for example, metal or Teflon resin. However, considering durability and sealing properties, Teflon resin or the like is preferable, and the sealing surface of the valve seat (33) has durability or foreign matter. In consideration of biting and the like, it is preferable to perform a surface hardening treatment, for example, a hard chrome plating treatment. The illustrated seal mechanism (30) is of an air-driven type, but is not limited to this.

The basic structure of the seal mechanism (30) is as described above, but the seal mechanism (20) connected to a fixed tank or the like has a receiving pipe (21) and a seal mechanism installed at the upstream end. And a dispensing device (1) connected to the moving tank (1).
The following points are different from the discharge mechanism (7) of the discharge mechanism (7) provided at the downstream end of the discharge pipe (18). That is, the seal mechanism (30) provided in the receiving device (20) has legs (28) inserted into the guides (25a) of the valve support (25) below both sides of the fastening plate (29). A cleaning liquid supply pipe (43) and a cleaning liquid discharge pipe (44) are provided linearly and integrally in opposition to each other inside the clamping plate (29). 29) is that a clamp cylinder (45) is provided upright on both ends.

As shown in FIG. 2, the cleaning liquid supply pipe (43)
The level of the flow port (32) of the seal mechanism (30) is configured to be the same, and the level of the cleaning liquid discharge pipe (44) is configured to be slightly lower than that. Both ends of the cleaning liquid supply pipe (43) and the cleaning liquid discharge pipe (44) are opened to open the communication port (3) of the seal mechanism (30).
Since the cleaning liquid supply pipe (43) faces the cleaning liquid supply pipe (43), the cleaning liquid flows out to the cleaning liquid discharge pipe (44) without staying in the circulation port (32). A handle (46) rotatable in the horizontal direction is attached to the tip of the rod (45a) of the clamp cylinder (45), and the flow port (32) of the cleaning liquid supply pipe (43) and the cleaning liquid discharge pipe (44). )
A guide block (47) protrudes from an upper portion on the front end side facing the, and a sealing device (48) such as an O-ring is attached to an inner wall of the guide block (47) on the side of the flow opening (32).

On the other hand, the lid (10) is, as described above,
The cover (10) has a substantially cylindrical shape and is fixed to an arm (9) laterally provided on a column (8) that is erected at a predetermined interval on the side of the station mount (5). No. (15) is a flange-shaped holding plate, and (14) is a piping stopper plate. As shown in FIG. 4, a hollow portion (11) is formed inside the center of the lid (10). The top of the hollow part (11) is open and communicates with the cleaning liquid supply pipe (13).
The bottom of the hollow part (11) is open to form a flow port (12). The lid (10) is connected to the receiving device (2).
By raising the valve support (25) with the cylinder (24) of (0), the valve support (25) is fitted into the flow port (32) of the sealing mechanism (30) provided therein. ) And the sealing mechanism (3)
The distribution port (32) of 0) is in contact with the distribution port (32). In addition, a flange-shaped holding plate (15) on the upper side of the lid (10)
Is larger than the diameter of the lower piping stopper plate (14),
The pipe stopper plate (14) is formed so as to be thick so as to cover the opening at the tip of the cleaning liquid supply pipe (43) and the cleaning liquid discharge pipe (44) of the sealing mechanism (30), or the edge thereof is directed upward. It is bent toward it.

Next, the operation of the above arrangement will be described in more detail. The receiving device (20)
It is always located directly below the lid (10) and receives the receiving pipe (21).
A lid (10) is fitted in a flow opening (32) of a seal mechanism (30) communicating with the seal mechanism (30). FIG. 5 shows a state where the lid (10) is fitted to the receiving device (20). When fitting the lid (10), first, a driving device (not shown) is operated to move the base (22) along the guide (7), and the valve support (25) of the receiving device (20) is moved. Stop right below the lid (10). And the cylinder (2
The rod (24a) of 4) is extended to operate the rod (2).
6) Slide upwards so that the valve support (25)
To rise. Then, the seal mechanism (30) supported by the projecting portions at the tips of the guides (25a) on both sides of the valve support (25) also rises, and the circulation port (32) of the seal mechanism (30) and the circulation of the lid (10). The mouth (12) is in contact with the surface, and the opening of the tip of the cleaning liquid supply pipe (43) and the cleaning liquid discharge pipe (44) of the sealing mechanism (30) is closed by the pipe stopper plate (14) of the lid (10). .

Thereafter, the fastening plate (2) of the sealing mechanism (30) is used.
By operating the clamp cylinders (45) erected on both sides of (9), the handle (46) is inverted, and the rod (45a) is shortened to hold down the pressing plate (15) of the lid (10) from above. Then, the seal mechanism (30) slightly rises, and the lid (1) is kept in contact with the flow port (12) of the lid (10) and the flow port (32) of the seal mechanism (30).
0) is firmly fitted, and the end of the receiving pipe (21) is completely shut off from the outside air. If it is necessary to clean the receiving pipe (21) when the lid (10) is fitted, one of the three-way valves provided downstream of the receiving pipe (21) is closed and the other is opened. Then, the cylinder (35) of the sealing mechanism (30) is operated, the valve body (34) is retracted to open the flow port (32), and the upstream side of the cleaning liquid supply pipe (13) communicating with the lid (10). The cleaning liquid is supplied by opening a valve attached to the cleaning pipe, and the receiving pipe (21) is cleaned. When the cleaning is completed, first, the valve of the cleaning liquid supply pipe (13) is closed, one of the three-way valves of the receiving pipe (21) is opened, and the other is closed, and the cleaned liquid is discharged.

When the movable carriage (2) is transferred from the automatic carrier (3) to the station mount (5) and stops at a predetermined position, the clamp cylinder (45) and the cylinder (24) are operated. The fitting between the distribution port (32) of the receiving device (20) and the lid (10) is released, and the receiving device (20) connected to the fixed tank is moved to the right (FIG. 1) by the guide (7). A seal mechanism (30b) that moves along the discharge tank (17) provided in the moving tank (1), that is, communicates with the downstream end of the discharge pipe (18) connected to the moving tank (1). Stop right below.
Then, the rod (24a) of the cylinder (24) is extended and the valve support (25) is raised, and provided on the seal mechanism (30a) and the dispensing device (17) provided in the receiving device (20). Sealing mechanism (30b)
And the clamp cylinder (45) erected on both sides of the sealing mechanism (30a) is operated to invert the handle (46), and the rod (45a) is shortened to operate the discharge pipe (18). ) Communicating with the seal mechanism (30)
b) The tightening plate (39) is tightened from above, so that the communication port (32a) of the seal mechanism (30a) and the seal mechanism (30) are tightened.
The distribution port (32b) of b) is interviewed with each other.

In FIG. 6, the receiving device (20) is connected to the payout device (1).
7) is shown. Here, as described above, the reference numeral of the seal mechanism on the receiving device (20) side is a, and the reference numeral of the seal mechanism on the dispensing device (17) is b. A description will be given with "." When connecting the two, a sealing device (48) is attached to the inner wall of the guide block (47) of the sealing mechanism (30a), so that the sealing device (48) and the valve seat (33b) of the sealing mechanism (30b) are connected. Thus, a completely sealed state can be maintained. Then, the sealing mechanism (30
a) and the seal mechanism (30b) can be connected in two stages. That is, the rod (24a) of the cylinder (24) erected on the base (22) is extended to operate the guide (25) of the valve support (25).
The sealing mechanism (30a) supported in a) is raised to the limit, and the valve seat (33b) of the sealing mechanism (30b) and the guide block (47) of the sealing mechanism (30a) are closely connected. In the first-stage connection, a slight gap is formed between the flow port (32a) of the seal mechanism (30a) and the flow port (32b) of the seal mechanism (30b) in the first-stage connection. The connection at the second stage is performed by the sealing mechanism (30
By operating the clamp cylinder (45) of (a) to invert the handle (46), further shortening the rod (45a) and tightening the tightening plate (39) from above to the limit, the sealing mechanism (30a) Distribution port (32a)
And the flow opening (32b) of the sealing mechanism (30b) are completely in contact with each other without any gap.

Therefore, in the case where only the discharge pipe (18) on the moving tank (1) side and the pipe end of the receiving pipe (21) on the fixed tank side, that is, only the flow port (32a) and the flow port (32b) are to be washed. The sealing mechanism (30a) and the sealing mechanism (30b) are connected in one stage by extending the rod (24a) of the cylinder (24) erected on the base (22) to the limit, so that the flow is opposed to each other. A slight gap is formed between the port (32a) and the flow port (32b). At this time, the valve body (34a)
And the valve element (34b) close the flow port (32a) and the flow port (32b), respectively. Then, the cleaning liquid is supplied from the opening at the tip of the cleaning liquid supply pipe (43) facing the gap to clean the distribution port (32a) and the distribution port (32b),
The cleaning liquid is discharged to the outside from the cleaning liquid discharge pipe (44) also facing the gap. In addition, the cleaning liquid dispensing pipe (4
Since the level of 4) is lower than the level of the cleaning liquid supply pipe (43), the cleaning liquid supplied from the cleaning liquid supply pipe (43) stays in the gap formed by the flow port (32a) and the flow port (32b). Instead, it is discharged from the cleaning liquid discharge pipe (44) disposed at a lower position.

Next, the delivery pipe (18) and the receiving pipe (2)
1), after one-step connection, the clamp cylinder (45) of the seal mechanism (30a) is operated to invert the handle (46), and the rod (45a) is shortened to operate the seal mechanism (30a). The two-stage connection is performed by tightening the tightening plate (39) of (30b). At this time, the sealing mechanism (30
The valve element (34a) of (a) closes the flow port (32a), and the valve element (34b) of the seal mechanism (30b) closes the flow port (32b). 35a) and (35b) are activated to operate the valve bodies (34a) (3
4b) is retracted, the communication ports (32a) and (32b) are opened to communicate with each other, and among the three-way valves provided upstream of the discharge pipe (18), the cleaning liquid tank (shown in FIG. One is opened and the other is closed, which communicates with the pipe connected to the discharge pipe (18), and the cleaning liquid in the cleaning liquid tank is supplied from the discharge pipe (18).
2a) (32b) and the receiving pipe (21) are washed. Thereafter, one of the three-way valves provided downstream of the receiving pipe (21) is opened and the other is closed, and the washed liquid is discharged.

When the cleaning of both pipes and the pipe ends is completed, the upstream side of the discharge pipe (18) and the receiving pipe (21)
One of the three-way valves attached to the downstream side of the valve is closed and the other is opened, and the fluid in the moving tank (1) is discharged from the discharge pipe (18) to the receiving pipe (21) and the receiving pipe (21). Discharge to a fixed tank or the like via a flexible tube or the like connected downstream of the receiving pipe (21). When the dispensing of fluid is completed, the dispensing pipe (1
8) and the receiving pipe (21) are washed in the same manner as described above, and the operation reverse to the above is performed to close both open three-way valves and the flow ports (32a) (32b), and clamp The cylinder (45) is operated to release the tightening of the clamping plate (39) by the handle (46), thereby releasing the interview between the distribution port (32a) and the distribution port (32b). Then, the rod (24a) of the cylinder (24) of the receiving device (20) is shortened, the valve support (25) is lowered, and the connection between the seal mechanism (30a) and the seal mechanism (30b) is released. Disconnect the piping. At this time, no dripping occurs from the flow port (32b) of the seal mechanism (30b).

Thereafter, the driving device is operated to move the receiving device (20) leftward in FIG. 1 to just below the lid (10), and the rod (24a) of the cylinder (24) is extended to operate the valve. The support (25) is raised, and as shown in FIG. 5, the lid (10) is fitted to the flow port (32) of the seal mechanism (30) communicating with the receiving pipe (21) to prevent contact with the outside air. Shut off to prevent dust from the atmosphere from adhering to the end of the pipe. Then, the receiving device (20) waits until the next moving tank is transferred to the station base.

At this time, if it is necessary to clean the receiving pipe (21) as described above, first, the cylinder (35) of the sealing mechanism (30) is operated to operate the valve body (3).
4) is retracted to open the distribution port (32), one of the three-way valves on the downstream side of the receiving pipe (21) is opened and the other is closed, and the cleaning liquid supply pipe (13) of the lid (10) is opened. By opening the valve and supplying the cleaning liquid, the receiving pipe (21) can be cleaned. In any case, the sealing mechanism (3
0) is a valve body (34) at the tip of a rod (36), which is provided with a valve seat (33) around the flow port (32) at the tip of the short pipe (31) and penetrates the center of the diaphragm (38). Since the valve seat (33) is closed, no liquid dripping occurs from the flow port (32) which is the pipe end. Therefore, in the production of the moving tank system in which there are many occasions of connecting and disconnecting the pipes, there is no concern about contamination of the working environment due to the dripping or contamination.

As described above, according to the present invention, in a moving tank production system in which there are many occasions for connecting and disconnecting pipes, the connecting portion of both pipes and the pipe ends are cleaned, and the liquid from the pipe ends is removed. In addition to preventing dripping, a lid can be fitted to the pipe end so as to block the contact between the pipe end and the outside air, so pharmaceuticals, foods, or highly pure chemicals It is very suitable when producing a product in a moving tank system. The method and the apparatus for cleaning the pipe connection according to the present invention are, of course, not limited to those shown in the examples, but may be appropriately designed and changed within the spirit of the present invention. Yes, for example, a configuration may be made in which the lid is lowered and fitted to the receiving device.

[0030]

According to the present invention, in the moving tank production system, the discharge pipe communicating with the moving tank and the receiving pipe communicating with the fixed device can be suitably cleaned, and dust and the like in the atmosphere adhere. Since a lid can be fitted to the receiving pipe so as not to be disturbed, it is very suitable for producing pharmaceuticals, foods, or high-purity chemicals, and greatly contributes to improvement in product quality and productivity. Further, since the seal mechanism is constituted by a valve seat provided at a flow path end having a bent portion and a valve body which can be freely moved toward and away from the valve seat, liquid dripping from the end of the pipe is prevented. Not at all. Therefore, there is no fear of contaminating the working environment, and contamination can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall schematic diagram for explaining a multi-purpose batch production system using a moving tank system.

FIG. 2 is a schematic side sectional view of a receiving device.

FIG. 3 is a schematic side sectional view of a sealing mechanism.

FIG. 4 is a schematic side sectional view of a lid.

FIG. 5 is a schematic side sectional view showing a state where a lid is fitted to the receiving device.

FIG. 6 is a schematic side sectional view showing a state in which a dispensing device is connected to a receiving device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving tank 2 Moving trolley 3 Automatic conveyance vehicle 4 Transfer path 5 Station stand 7 Guide 8 Prop 9 Arm 10 Cover part 11 Hollow part 12 Distribution port 13 Cleaning liquid supply pipe 14 Pipe stop plate 15 Press plate 17 Discharge device 18 Discharge pipe 20 Receiving Device 21 Receiving pipe 22 Base 23 Elevating guide 24 Cylinder 25 Valve support 26 Rod 27 Bearing 28 Leg 29 Tightening plate 30 Sealing mechanism 31 Short pipe 32 Flow port 33 Valve seat 34 Valve body 35 Cylinder 36 Rod 37 Partition wall 38 Diaphragm 39 Tightening plate 40 Compressed air chamber 41 Spring 42 Air supply pipe 43 Cleaning liquid supply pipe 44 Cleaning liquid discharge pipe 45 Clamp cylinder 46 Handle 47 Guide block 48 Sealing device

Claims (4)

[Claims] A seal mechanism of a dispensing device communicating with a dispensing pipe connected to a moving tank mounted on a movable cart and a sealing mechanism of a receiving device communicating with a receiving pipe connected to a fixed device are provided with respective communication ports. Are connected so as to face each other with a gap, and the cleaning liquid is supplied from the cleaning liquid supply pipe facing the flow port of the seal mechanism of the receiving device, and the flow ports of both seal mechanisms are cleaned. A method for cleaning a pipe connection portion, comprising: providing a cleaning liquid tank mounted on a movable trolley to wash a supply pipe and a reception pipe by making a cleaning liquid tank mounted on a movable trolley for communication. 2. When the seal mechanism of the dispensing device and the seal mechanism of the receiving device are not connected, a lid communicating with the cleaning liquid supply pipe is fitted into a flow opening of the sealing mechanism of the receiving device.
Supply the cleaning liquid from the cleaning liquid supply pipe as necessary,
The method according to claim 1, wherein the receiving pipe is cleaned. 3. A dispensing device having a seal mechanism communicating with a dispensing pipe connected to a moving tank mounted on a movable trolley, a receiving device having a seal mechanism communicating with a receiving pipe connected to a stationary device, and a cleaning liquid. A lid that is in communication with the supply pipe and is fitted to the flow port of the seal mechanism of the receiving device, the receiving device has a cleaning liquid supply pipe and a cleaning liquid discharge pipe facing the flow port of the seal mechanism, and The dispensing device is configured to be reciprocally movable from a predetermined position for fitting the lid portion to a predetermined position for connecting the dispensing device, and is configured to be vertically movable so that the seal mechanism of the receiving device can be connected to the sealing mechanism of the dispensing device so as to be able to be connected to the sealing mechanism. A cleaning device for a pipe connection part. 4. A seal mechanism comprising a valve seat provided at an end of a flow path having a bent portion, and a valve body which can be freely moved toward and away from the valve seat. 4. The apparatus for cleaning a pipe connection according to 3.