JPH0825617A - Method and device for cleaning deck of printing press or coating machine - Google Patents

Abstract

PURPOSE: To efficiently and easily wash the deck of a press or coater. CONSTITUTION: The pipeline of a pump 19 connected to an ink fountain 11 of a press is selectively connected to a solvent container 31 and a waste container 30 so as to form a closed circuit for recycling and allowed to communicate with the open air, in order to push out a solvent and additionally connected to a solvent storage container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for cleaning the deck of a printing machine or a coating machine,
More particularly, it relates to an apparatus and method for cleaning a deck of a machine having a closed doctor blade chamber for supplying solvent to rolls such as flexographic anilox rolls and gravure rolls.
For the sake of convenience, the following description is in terms of flexographic printing machine.

[0002]

2. Description of the Related Art Cleaning of decks (ink reservoirs, anilox rolls, etc.) of flexographic printing machines takes time and costs. When changing inks (for changing colors or changing to one with a different viscosity, etc.), old ink must be removed, but this is a job that everyone hates. Cleaning work is the largest part of the job of changing ink.

Conventionally, for example, 20 gallons of solvent had to be flushed to completely clean the deck. The solvent passes through the ink fountain chamber formed by the rotating anilox roll. The anilox roll itself also needs cleaning. During washing, the solid contents of the solvent quickly become saturated, requiring a large amount of solvent.

A more complicated point is that in order to work efficiently, it is necessary to increase the flow rate and to create turbulence, especially in order to thoroughly clean the chamber. However, the end seals typically only withstand a small amount of pressure, for example 10 to 15 inches H ² O. The high pressure flow causes leakage through the end seals. Therefore, the cleaning operation requires a longer time than expected.

In the present invention, fresh or once-used solvent is forced into a system with a valve to force the remaining ink or spent solvent into a waste container. Once the system is filled with solvent, the valve shifts causing the pump to circulate the solvent through a closed circuit or loop. Such a closed circuit provides the desired high flow rate. Also, the rotation of the pump is repeatedly cycled in the reverse direction to enhance the cleaning action of the solvent. As the solvent, any liquid may be used as long as it dilutes the ink composition and carries away the ink solid matter, for example, water in the case of a water-soluble ink.

The system may be refilled with fresh solvent while the solvent once used is working. After that, in this system, the solvent replaced with air is discharged. In this way, almost all components of the inking system (hoses, pumps, anilox rolls, doctor blade chambers, valves, accessories, etc.) will be automatically cleaned in preparation for the next printing operation.

In the preferred embodiment of the present invention, a solvent reservoir may be used. Such containers are added to the system, for example, to initially circulate the solvent once used for initial cleaning of the system. This reduces the amount of solvent needed. 2 per deck
The gallons have been reduced to 1 gallon. In this preferred embodiment, a fifth valve is used with the container added to the underlying system. This container should have a volume which is approximately equal to the volume of the system, ie the volume of the hoses, pumps, chambers and valves. Three passages extend from the additional container, two passages being the return line and the other one being the intake line. The discharge end of the return line is located above a predetermined level of solvent in the additional container, and the end of the intake line is drawn out from the bottom of the container.

In operation, once printing has been accomplished, the valve of the system regulates the solvent once used from the additional container into the system while the remaining ink is directed to the waste container. The system is then closed to recycle the once used solvent, thereby cleaning the system and converting the formerly used solvent to waste solvent. At the end of the cycle, waste solvent is directed to the waste container, while fresh solvent is pumped into the system. Prior to introducing the ink for further operation, a new volume of the solvent once used is introduced into the additional container. The solvent in the first part of the system is discharged into an additional container, the once used solvent is replaced by air from the top of the additional container, and the second or return wastewater is replaced by the once used solvent in the additional container. It is sent to the rest and turns it into air.

The prior art shown in US Pat. No. 5,213,044 relates to an offset lithographic printing machine,
It's not about flexographic printing machines. In lithographic printing machines, there are no closed ink chambers that interfere with cleaning during repeated cycles. In a lithographic printing machine, it is only necessary to fill the ink chamber with a solvent and discharge the solvent, and if the solvent is pumped so as to pass through the chamber, the solvent overflows or causes a loss. Other objects and advantages of the invention will be apparent in the details of the specification.

[0011]

The present invention will be described below in detail with reference to the illustrated embodiments. First, referring to the left part of FIG. 1, reference numeral F is a frame of the printing machine. Reference numeral 10 in the figure is an anilox roll rotatably attached to the frame. An ink reservoir 11 is provided so as to cooperate with the anilox roll 10. Ink reservoir 11 comprises doctor blades 12, 13 with suitable end seals, one of which is shown at 14. Ink reservoir 11
Is also operatively associated with the frame F to form with the anilox roll 10 an ink chamber with a pair of ports for introducing and removing liquid. This configuration of the device is conventional and may vary. Other printing components, such as the frame, central printing cylinder, plate cylinder, etc., have been omitted for simplicity and clarity.

As indicated above, the present invention advantageously uses a fluid system in cooperation with a flexographic printing machine. This system is designated by reference numeral 15 in the drawing. The system comprises a first conduit 16 and a second conduit 17. The first conduit 16 is connected near the bottom of the ink reservoir 11,
The second conduit 17 is connected near the top of the ink reservoir 11. During printing (as will be described in connection with FIG. 2), the first conduit 16 delivers ink to the ink reservoir and the second conduit 17 returns excess ink.

Still referring to FIG. 1, reference numeral 18 is a cabinet operatively associated with the frame F, which houses valves, air cylinders, and pump motors. The cabinet 18 supports a pump 19 and an ink container 20. A suitable pump is 75, manufactured by Randolph Pumps Ltd. located in Manchester, Texas 78652.
There is a 0-000 type. The return line 17 is connected to the ink container 20 at a position 21 and the pump 19 has one port 22. The port 22 is connected to the ink container 20 via a conduit 23 as indicated by reference numeral 24. The second port 25 of the pump 19 is connected to the inside of the housing 18, that is, a valve described later, through a pipe line 26. These valves are connected to the line (first conduit) 16.

The housing 18 also includes conduits 27 and 28.
And a receiving container 30 for a new solvent and a spent solvent, respectively, via a valve. The housing 18 is also connected by a supply line 32 and return lines 33, 34 to a receptacle or receiver 31 for spent solvent. Additional receiving container 31
Has a vent 35 for intake and exhaust. FIG. 2 shows the operation of the components described below in the inking.

Inking FIG. 2 schematically shows an inking circuit. This figure shows the position of the valve and the rotation direction of the pump for normal printing. Ink is supplied to the doctor blade chamber and returns to the ink trough 20 by gravity. Specifically, the ink from the ink tub 20 flows into the port 22 of the pump 19 through the conduit 23. The ink is forcibly discharged from the port 25 and flows into the pipe line 26, and reaches the three-way valve 1.

The ink, after passing through one passage of the valve 1, flows through line 36 and, unlike our earlier invention, beside the second three-way valve 2. Instead, the ink passes via line 36 through one passage of the third three-way valve 3. The output flow from the valve 3 (see FIG. 2) flows to the lower port 37 of the ink reservoir 11 via the conduit 16. On the other hand, the excess ink is stored in the upper port 3 of the ink reservoir 11.
8 and reaches the ink tub 20 through the conduit 17.
The removal valve 4 is a Model 7 from Conbraco Industries, Inc. of Pageland, South Carolina.
The 0-000 / 9000 series ball valves are good and these valves are equipped with air cylinders for rotating the balls. For cleaning, the connection between the pump and the ink trough must be changed to the connection between the pump and the used solvent reservoir. This is shown in FIG. 3 in connection with the filling of the solvent once used.

Filling Solvents Once Used FIG. 3 relates to filling solvents, in which the operator of the printing machine removes the lines 17 and 23 from the trough 20 and connects them together at the position 39. (See the lower part of FIG. 3). Alternatively, it may be achieved by a suitable valve. In the situation shown in FIG. 3, a total of 5 valves are used. In this state,
The solvent used once and the relatively new solvent used in the preceding cycle are replaced with the ink remaining in the chamber 11 and the line 16, and the used ink is discarded.
It cannot be pumped to the upper port 38 of the chamber for transfer to zero.

Valves 1 and 4 are shifted from the first state shown in FIG. As a result, when the pump 19 is operated in the reverse direction (see the arrow below the pump 19), the once used solvent from the receiving container 31 flows into the valve, hose and doctor blade chamber. Pump 1
9 is rotated for a predetermined number of rotations corresponding to the system capacity and then stopped. Any excess ink is pumped directly to waste container 30. More specifically, the solvent once used flows from the receiving container 31 into the conduit 32 and passes through one passage of the valve 5 and the passage previously selected of the valve 2 passing through the other passage of the valve 1. , And then via line 26 to port 25 of pump 19. By the reverse rotation of the pump 19, the once used solvent is sent from the port 22 through the lines 23 and 17 to the upper port 38 of the ink reservoir 11.

The rotating ball in valve 4 causes ink to exit chamber 11 through lower port 37 and through line 16 through the same path as before in valve 3 to site 36a of line 36. From there, the ink passes through the tributary tube 28a and into the waste container 30 through the release valve 4 and the conduit 28. The valve number 4 is 70-100 / manufactured by Conbraco Industries, Ltd.
It is a 200 type series two-way valve.

Cleaning Cycles Generally speaking, valves 1 and 4 are returned to their original state of inking (see FIG. 2) while the other three valves are maintained in the state of FIG. The pump 19 is rotated in the normal and reverse directions for cleaning work (see FIG. 4).
(See the lower right part of). The arrow indicating the direction of rotation is terminated on both sides to indicate a change in this direction. This changing operation can be performed manually or by a motion controller PIC-9 manufactured by Guiding Louise Co. of Van Dulac, Wisconsin, for example.
It is automatically done by a control means such as type 0.

Preferably, the pump control means 19a is
At the maximum flow rate, the hose, valves, and doctor blade chambers generate turbulent rotation that increases turbulence. This flow rate is preferably 5 times or more, and more preferably 3 times or more the flow rate of normal ink. After several flow diversions,
The system is typically refilled as seen in Figure 5,
The washing cycle in FIG. 4 is repeated until the desired cleanliness is reached (two washing cycles are suitable for replacement with new color ink). More specifically, the rotation of the balls in valves 2 and 4 brings the hydraulic system back to the combined configuration for inking (see Figure 2). The exception to the perfect match is that lines 23 and 17 are shown in FIG.
The point is that they are connected together as in. In this way, the port 22 is connected to these lines 23, 17 instead of being connected to the ink tub 20.

The flow rate of the closed circuit connecting the ink trough lines 23 and 17 is much higher than that possible in a typical inking circuit. The flow rate is limited based on the pressure limit of the doctor blade chamber end seal, for example seal 14 in the upper left hand portion of FIG. Closed circuit
At the same time as the solvent is pushed into the doctor blade chamber 11, the solvent is drawn out of the chamber 11, so that the internal pressure of the chamber 11 is close to the external atmospheric pressure and cannot leak. After the final cycle has been completed, it is arranged to be filled with fresh solvent from source 29. This will be explained with reference to FIG.

Filling with New Solvent This is a step from our earlier application, except that the liquid going to the waste container 30 is a solvent that is used twice, not an ink (see FIG. 3). Very similar. Fresh solvent is removed from the supply vessel 29 and flows through line 27 to valve 2. Thereafter, the passage of fresh solvent is similar to that of the solvent once used in FIG. Both solvents flow through line 41 to valve 1, then via line 26 to pump 29, from there via line 17 to port 38.

The solvent used twice exits chamber 11 via port 37, line 16, valve 3, line 36.
Finally through a, line 28a, valve 4 and line 28 to waste container 30. What is left in the system is fresh solvent, which is then used in the wash cycle as shown in FIG. After washing, this solvent is
Flow towards an additional container 31 in two convenient stages. Especially when the chamber 11 is lifted for gravity drainage. This is explained in connection with FIGS. 6 and 7.

Chamber and Supply Line Outflow Referring to FIG. 6, the valve 3 can be seen as modified from the state of FIG. Now the pump 19 is operated in the opposite direction (compare with FIG. 2). The pump 19 draws air from the air port 35 into the system and causes the once used solvent in the system to flow toward the container 31. The air flow is indicated by the dashed line.

More specifically, the valve 5 is connected to the air port 35 of the container 31 via the lines 32 and 40, 41, and the valves 1 and 2 are connected to the port 25 of the pump 19 through the line 26. It is connected to the. Pump 1
The output of 9 (in this application example) is port 22 and line 2
3 and 17 to the upper port 38 of the chamber 11. At the same time, the solvent used once flows out from the chamber 11 via the port 37 to the conduit 16, the valve 3, the conduit 33 and the container 31.

Pump and Return Line Drainage This is shown in FIG. 7 and is almost the same as FIG. 6 except that the pump rotates in the forward direction to introduce air into the bottom 37 of the ink reservoir 11 rather than the top. The difference is. Air enters the system at position 35 (upper left) and flows through line 33. The air then flows through valve 3 and line 16
Continue through Port 37. After flushing the once used solvent out of the sump 11, air (now with this solvent) exits through port 38 and line 17 to port 22 of pump 19. The mixture flows from line 32 to vessel 31 through pump port 25, line 26 and valves 1, 2, 5. A second drain cycle is performed by operating the pump in the forward direction, since there is a trap, eg a low pressure zone, in some part of the hose path. In this way, almost all solvent is pumped out of the system prior to introducing the next ink.

8 and 9 illustrate the advantages of the previously disclosed invention. For example, in FIG. 8, the flow suddenly widens. This is an indication of the entrance or other sudden changes to the doctor blade chamber and the flow pattern of the basin. The flow rate over the shaded area surface is insufficient to remove the solids of ink. In FIG. 8, these shaded areas are indicated by reference numerals 42 and 43, in which the flow velocity is compared as indicated by arrows 44 and 45 in comparison with that indicated by the axial arrow 46 of line 47. Low

This is solved by the treatment shown in FIG. There, the flow is suddenly narrowed. When the flow regurgitates as seen in FIG. 8, the previously shaded region has a very high flow velocity at the locations shown at 48 and 49, which carries away the ink solids. With regard to the above-mentioned series of flows for supplying and returning the solvent, several modifications can be made by selecting an operation. However, the significant advantage of closed circuit pumping is that a high dissolving force is obtained without causing leaks from the end seals and that the various reversals of the direction of flow cause shadowing inside the doctor blade chamber. It means to lose.

Other Embodiments This embodiment provides a system that does not have a solvent reservoir and cooperating lines and valves. In this example, after inking is performed as seen in FIG. 2, the next step is to fill the system with fresh solvent as shown in FIG. Then, the cleaning step of FIG. 4 is performed. Following that, two drainage steps (Figs. 6a and 7)
(shown in a). These steps are essentially different from FIGS. 6 and 7 in that, as shown in connection with FIG. 5 above, the waste container 130 is used instead of the solvent storage container 131.

Chamber and Supply Line Drain without Solvent Container In FIG. 6A, the balls in valves 1 and 4 have moved and the pump 119 has been reversed (FIG. 2 for inking) after the last wash cycle has been accomplished. (Indicated by a clockwise arrow opposite to that shown in). As a result, air is sucked into the system through the air port 135, and the solvent in the system is expelled to the waste container 130. The air flow is indicated by dashed lines.

More specifically, valve 5 is connected to air port 135 via line 32 and to port 125 of pump 119 as in FIG. Pump 1
The output from 19 (in this example) is port 12
2, through the lines 123 and 117 to the upper port 138 of the chamber 111. Ink exits the chamber via port 137 and is in line 116, valve 2, line 136.
a through conduit 128a, valve 4 and conduit 128 to waste container 130.

Return Line and Pump Drain This is shown in FIG. 7A. 7 is almost the same as FIG. 7, but differs from FIG. 7 in that the waste liquid after passing through the valve 1 flows into the discard container 130 rather than the container 131. Air is sucked into the system at a position indicated by reference numeral 135 (upper left center in the figure), and flows to the port 137 of the chamber 111 through the conduit 133 communicating with the valve 3 and the line 116. After flushing the solvent out of the sump 111, air (now mixed with solvent) flows out through port 138 and line 117 to port 122 of pump 119. The mixture passes through pump port 124, line 126 and valves 1,4 to line 128 and vessel 130.

Overview In general, the apparatus for cleaning the deck of a flexographic printing machine as seen in FIG. 1 comprises a frame F for rotatably supporting an anilox roll 10. The roll 10 partially occludes a relatively elongated ink chamber mounted on the frame F. The chamber has doctor blades 12, 13 in contact with the anilox roll 10 to form a closed chamber and an end seal as seen at position 14. The chamber 11 has a pair of ports 37, 38 spaced close to the end seals.
And liquid flows in through these ports 37, 38,
Further, the liquid that has flowed in and passed through the chamber is taken out (see FIG. 2).

As can be seen in FIG. 1, a reversible pump 19 is operably mounted on the frame F and comprises an ink source 20, a solvent source 29 or 31, and a waste container 30.
Are similarly provided on the frame F. The present invention also includes a conduit, such as pump 19, for the ink source 20 at 23.
A pipe or hose for liquid transfer, which is connected at the position (see FIG. 1), is provided. The pump 19 has a solvent source 29 at a position 27, a solvent storage container 31 at a position 32, and a waste container 30 at a position 28.
Also, at the positions indicated by reference numerals 16 and 17, the ink reservoir port 3
7, 38, respectively (see FIG. 3). As part of the fluid pressure system, multiple valves are provided for connecting the conduits to perform a series of functions.

The first function is to direct the ink from the ink source 20 through the chamber 11 under the first condition of the valve. This is shown in FIG. 2 where the ink has penetrated from the trough 20 and line 23 into the pump 19 at the port 22. Ink pump 19
From the chamber to the bottom 37 of the ink reservoir 11, passes through the ink reservoir, exits through the upper port 38 and returns to the ink tub 20 via line 17.

The second function is that the pump 19 is the ink source 20.
The valve is placed under the second condition while being disconnected from the container of FIG.
From a solvent source that is the new solvent source 29 of
To guide it through the ink chamber.

A third function is to set the valve under a third condition to allow the solvent to circulate through the ink chamber while the pump 19 is disconnected from the ink source. These states are shown in FIG. 4, in which the controller 19a of the pump 19 changes the direction of rotation of the pump multiple times to force the solvent into one port 3
7 and 38, and then to the other port 38 and 37. As can be seen from FIG. 4, the hydraulic system S
It is in a closed loop and does not allow any liquid to enter or drain outside.

The final step in the general operation or setting of conditions for the valve means 1-5 is to discard the solvent to be reused from the third functional state described above when the solvent container is not engaged. It is directed to the container 130. This is shown in Figures 6A and 7A, where the spent solvent is expelled by air. This prepares the system for new ink fills.

However, the preferred method of practicing the present invention is to reuse the solvent once used (after different inking). In this example, the solvent source used first is for the container 31 containing the solvent once used. Regarding the one-time use, it should be mentioned that the new solvent is sent to the system after the previous flushing with the solvent provided to the container 31 by the previous ink printing.

Generally, the solvent used once is as shown in FIG.
In a closed loop within the system configuration and used twice (once for two different inks each time) to be discharged into a waste container 30. The new solvent passes through the ink chamber 11 from the container 29 and forces the previous solvent to flow into the waste container 30 (see FIG. 5). Then, the new solvent replaces the solvent used twice and is discharged into the container 31. This is done first as seen in FIG. 6 and then as shown in FIG. At this point, the system (with the exception of container 31) is almost free of solvent and contains only air. The above description of the embodiments of the present invention is given only for the purpose of illustration, and many modifications can be made without departing from the spirit of the present invention.

[Brief description of drawings]

1 is a schematic perspective view of a flexographic printing machine used to carry out the present invention.

FIG. 2 is a schematic diagram showing a fluid pressure circuit state arranged for normal printing.

3 is a diagram showing a state in which the fluid pressure circuit of FIG. 2 is filled with a solvent taken from a solvent storage container.

FIG. 4 is a diagram showing a cleaning cycle of the fluid pressure circuit diagram shown in FIGS. 2 and 3;

FIG. 5 is a diagram showing a state in which the fluid pressure circuits shown in FIGS. 2, 3 and 4 are filled with an unused solvent.

FIG. 6 is a schematic view different from FIGS. 2 to 5 in that a supply line connecting a drainage water from a doctor and a solvent storage container is shown.

6A is a schematic diagram similar to FIG. 6, but the solvent storage container is not shown in order to draw attention to the chamber and the supply line leading from wastewater to disposal.

FIG. 7 is a schematic diagram similar to FIGS. 2 to 4 except that the regression line and drainage to a solvent storage container by a pump are shown.

7A is a schematic diagram different from the regression line shown in FIG. 7 in that the solvent pumped out by the pump is discarded without using a storage container. FIG.

FIG. 8 is a cross-sectional view of a pipe connection portion showing a fluid flow with sudden expansion.

FIG. 9 is a cross-sectional view of a pipe connection portion showing a fluid flow which is suddenly narrowed contrary to FIG.

[Explanation of symbols]

F: Frames 1 to 5: Valve means 10: Anilox roll 11: Ink reservoir 12, 13 ··· Doctor blade 14 ··· End seal 15 ··· Fluid system 16, 17, 12, 27, 28, 32, 38 ··· Pipeline means 18・ ・ ・ ・ ・ ・ ・ ・ Housing 19 ・ ・ ・ ・ ・ ・ ・ ・ Pump 20 ・ ・ ・ ・ ・ ・ Ink container 22, 25 ・ ・ ・ ・ ・ ・ Pump port 29 ・ ・ ・・ ・ ・ Solvent container 30 ・ ・ ・ ・ ・ ・ ・ ・ Disposal container 31 ・ ・ ・ ・ ・ ・ Solvent container 38 ・ ・ ・ ・ ・ ・ Upper port

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Dale Ezziemann 54208, Wisconsin, United States, County RT, Denmark 6373

Claims (14)

[Claims] 1. A frame (F) for rotatably supporting an anilox roll (10), a doctor blade (12, 13) for contacting the anilox roll and forming a closed chamber, and an end seal. (1
4) and an ink chamber (11) attached to the frame, and a pair provided at a distance from the end seal of the ink chamber for allowing fluid to enter and exit through the ink chamber. Ports (37, 38) and a reversible pump (1) operatively associated with the frame.
9), an ink source (20), a solvent source (29, 31) and a waste container (30) which are also operatively associated with the frame, the pump, the ink source, the solvent source and the waste container. And a pipe means (12, 16, 1) connected to the port
7, 32, 38), and a plurality of valve means (1-5) are provided in the conduit means, and these valve means (a) in the first state supply ink to the ink source ( Two
0) to flow through the ink chamber (11) and (b) in the second state, the solvent is removed from the solvent source (29, 31) while the pump is disconnected from the ink source.
From the ink source (20) to the ink source (20) in the third state.
And, while being disconnected from the solvent source (29, 31), guides the solvent to circulate through the ink chamber, and during this third state, means operatively associated with the pump. The flow direction of the fluid flowing in the pump is reversed a plurality of times to allow the solvent to flow to one port and then to be alternately guided to the other port. A device for cleaning the deck of a printing machine or a coating machine, which guides to flow into the waste container (30, 130) from the above. 2. The solvent source is a container for a solvent that has been used once, the frame is provided with a new solvent container that is operatively related, and the valve means is provided in the state of (b) above. The used solvent is guided from the container through the ink chamber, and in the state of (c), the used solvent is circulated and the new solvent is passed from the container through the ink chamber. 2. The apparatus according to claim 1, wherein the once used solvent is replaced, and the solvent is guided to flow into the once used solvent container. 3. The apparatus of claim 1, wherein the solvent source is a solvent source of fresh solvent. 4. The valve means directs air to one port of the ink chamber when the pump is in one rotational state and directs air to the other port of the ink chamber when the pump is in a reverse rotational state. The device according to claim 1, wherein the device is operated so as to be guided to a port. 5. An ink chamber having a frame for rotatably supporting an anilox roll, a doctor blade for contacting the anilox roll to form a closed chamber, and an end seal, and attached to the frame. And a pair of ports spaced apart near the end seal of the ink chamber for allowing fluid to pass in and out of the ink chamber, and a reversible pump operatively associated with the frame. Means, also an ink source operatively associated with the frame, a new solvent solvent source, a once used solvent container, a waste container and an air port means, the pump means and the ink source and the new solvent. The solvent source, the solvent container used once, the waste container, and the conduit means connected to all of the air port means. A plurality of valve means are provided in the stage so as to be operatively associated, and these valve means guide (a) ink in a first state to flow from the ink source through the ink chamber. And (b) in the second state, the solvent once used to guide the ink remaining in the system to the waste container while the pump is disconnected from the ink source and the new solvent source. Is guided to flow from the solvent source through the ink chamber, and (c) in the third state, the pump separates the ink source, the new solvent solvent source, the once used solvent container and the waste container. Separated from all, means operatively associated with the pump reverses the direction of flow of fluid through the pump multiple times to allow solvent to flow to one port and then alternately to the other port to direct the solvent. Guiding the used solvent to circulate through the ink chamber during the conversion of the used solvent to the waste solvent, and (d) in a fourth state, fresh solvent from the solvent source to the ink chamber. While passing the waste solvent through the waste container while the waste solvent is being guided to the waste container, the fresh solvent is further converted into the solvent used once, and (e) in the fifth state, air is supplied to the air port. A device for cleaning the deck of a printing or coating machine, characterized in that it guides the above-mentioned once-used solvent, once used, into the solvent container while being guided through the means. 6. The conduit means connects a first conduit portion for connecting the first port to a once-used solvent container, and connects the second port to a once-used solvent container. And a second line portion, wherein the valve means has a first position at which the solvent used once passes through the first line portion of the line means, and then the second pipe portion. 6. A device according to claim 5, characterized in that it guides in flow with a second position passing through the road part. 7. The apparatus of claim 5, wherein said air port means is operatively associated with said once used solvent container. 8. An ink mounted on a frame, which has a frame for rotatably supporting an anilox roll, a doctor blade for contacting the anilox roll to form a closed chamber, and an end seal, and which is attached to the frame. A chamber and a pair of spaced ports near the end seal of the ink chamber for allowing fluid to pass in and out of the ink chamber, and an invertible member operatively associated with the frame. Pump means, as well as ink source, solvent source, waste volume, and air port means operatively associated with the frame, the pump means, the ink source, the solvent source, the waste container, and the waste container. Conduit means connected to a port of the ink chamber, the conduit means being provided with a plurality of valve means operatively associated therewith. And (b) manages the ink so that the ink flows from the ink source through the ink chamber in the first state, and (b) the pump is disconnected from the ink source in the second state. The solvent is controlled to flow from the solvent source through the ink chamber during a period of time (c) in the third state, the solvent flows through the ink chamber while the pump is disconnected from the ink source and the solvent source. And during this third state, means operatively associated with the pump reverses the direction of the fluid flowing through the pump multiple times to direct solvent to one port and then to the other. To the waste container by alternately guiding the waste solvent to the waste container, and (d) in the fourth state, while the air is being introduced into the pipeline, the waste solvent is transferred to the waste container. Inflow Apparatus for washing and manages, characterized in that, the decks of the printing press or coating machine as. 9. An ink chamber that is closed and relatively elongated and has a port at each end, an ink source, a solvent source, a spent solvent container, a reversible pump, and these ink chambers. Providing a system including an ink source, a solvent source, a conduit connecting the pump and a spent solvent container, and circulating ink from the ink source to the ink chamber at a predetermined time and interrupting the ink circulation. Guiding the solvent from the solvent source to the ink chamber, the pump and the conduit means, while providing a closed loop for the solvent between the pump and the port of the ink chamber. Alternating the direction of fluid flow through the ink chamber with disconnecting the pump from the solvent source and then removing the solvent from the ink chamber , Consisting of a step of circulating the solvent in the closed annular path above, the method for cleaning the deck of a flexographic printing machine. 10. While the pump is alternating flow,
10. The method of claim 9, wherein the flow rate is about 5 times greater than the ink circulation rate. 11. The step of providing the system comprises a container of solvent for which the system has been used once, and the step of guiding the solvent comprises guiding the solvent once used from the container to a conduit, The pumping step includes pumping once used solvent in the closed loop, and the removing step comprises guiding the fresh solvent for replacement of the draining solvent while the system is being guided. 10. The method of claim 9, comprising draining circulating solvent from the. 12. The method of claim 11, wherein said step comprises simultaneously directing air into said system during displacement of solvent into said vessel. 13. The step of guiding air directs air to one port of the ink chamber when the pump is in a first state and directs air to the ink chamber when the pump is in a second state. 13. The method of claim 12 including feeding to the other port. 14. The step of directing comprises directing fresh solvent from a solvent source, and the step of removing comprises removing circulating solvent while air is being introduced into the ink chamber. The method of claim 9, wherein: