JP2002120356A - Ink supply device for printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink supply device for a printer, facilitating the replacing work of the ink supply device. SOLUTION: In the ink supply devices 2, 3 and 4 of a printer divided into plural sets of ink supply units 10, 41 and 45 in a machine lateral direction so as to provide the ink supply units 10, 41 and 45 side by side, the respective ink supply units 10, 41 and 45 are supported by linearly movable bearings 14a and 14b or 21a and 21b and individually drawn out from the arranging places thereof to be replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink supply apparatus for a printing apparatus, and more particularly, to an ink supply apparatus for a printing apparatus in which a plurality of ink supply units are divided in a machine width direction and each ink supply unit is arranged in parallel. It relates to a supply device.

[0002]

2. Description of the Related Art Conventionally, an ink supply device of a printing device for performing multicolor printing is divided into a plurality of sets of ink supply units in a machine width direction, and each of the ink supply units is arranged in parallel. There is. In such an ink supply device, each ink supply unit is individually replaced and exchanged so that printing can be performed with ink of a different color.

As a printing apparatus having such an ink supply device, there is a newspaper rotary press. As shown in FIG. 15, the newspaper rotary press includes a plurality of sets of printing apparatuses 1a and 1b located on both sides of a web pass line and are opposed to each other, and each set of printing apparatuses 1a and 1b includes a web 44. Are arranged side by side along the traveling direction. Then, the paper can be printed on both sides of the web 44 by passing the sheet between the printing apparatuses 1a and 1b of each pair. In addition,
In FIG. 15, each set of printing apparatuses 1a and 1b is provided with an ink supply apparatus 2 (or 3, 4), which will be described later, but only one is illustrated and the other is not shown.

When printing requiring color change is performed by a newspaper rotary press, a so-called page pack system is generally adopted in which an ink supply unit for one page is replaced for each unit. When a newspaper rotary press adopts this page pack system, an ink supply unit configured to change the ink supply for each page is provided side by side, thereby simultaneously printing a plurality of pages in the machine width direction. Can be done.

There are various types of paper passing as shown in FIG. 15 by a web 44 indicated by a solid line or a dashed line.
Multicolor printing can be performed by appropriately changing the form of the paper passing and appropriately changing the ink colors of the printing devices 1a and 1b of each set through which the web 44 passes. The web 44 that has been printed as described above is slit at the center in the traveling direction and divided into two sheets, and each is fed as a ribbon to a folding machine (not shown).

Here, a general ink supply device installed in a newspaper rotary press will be described. Representative examples of such an ink supply apparatus include an ink pump system (see FIG. 16), an ink fountain system (see FIG. 17), and a keyless system (see FIG. 18).

The ink supply device 2 of the ink pump type shown in FIG. 16 includes an ink circulation tank 5, an ink supply pump 6, an ink pump 7, an ink supply nozzle 8, a pipe 9 for connecting them, and an ink supply nozzle 8. The ink transfer roller 18 to which the ink is transferred and supplied, the ink supplied to the ink transfer roller is transferred to the plate cylinder 33 (FIG. 1).
And a blanket cylinder 37 (see part of FIG. 18) that receives a transfer of a picture from the printing plate 34, and the like. ing. In FIG. 16, 12 is a beam, and 39 and 40 are joints.

In the ink supply device 2, the ink filled in the ink circulation tank 5 is supplied to an ink pump 7 via an ink pressure pump 6 and a pipe 9, and subsequently,
After the ink supply amount per unit time is controlled by the ink pump 7, the ink is supplied to the ink supply nozzle 8 through the pipe 9, and further diffused in the ink supply nozzle 8 in the axial direction of the ink transfer roller 18. The ink is transferred and supplied to the outer peripheral surface of the ink transfer roller. Thereafter, as in the case of the ink supply device 4 shown in FIG. 18, the ink is appropriately kneaded in the process of sequentially transferring the ink roller group 35 downstream from the ink transfer roller 18 and then the ink forming roller 36 Is supplied to the printing plate 34 wound around the plate cylinder 33, and is then transferred to the blanket cylinder 37 via the printing plate 34 as a picture. It should be noted that the blanket cylinders 37 are paired and provided so as to be in contact with each other, and the web 44 is running synchronously between them. Thus, the ink transferred to the pair of blanket cylinders 37 is transferred to both surfaces of the web 44 that runs synchronously with the blanket cylinders, and printing of a predetermined color is performed. At this time,
The excess ink that has been excessively supplied to the ink pump 7 is fed back (refluxed) to the ink circulation tank 5 described above.

The ink fountain-type ink supply device 3 shown in FIG. 17 includes an ink fountain 28, an ink source roller 26 forming one side of the ink fountain 28, ink received from the ink source roller, and the ink fountain. There is a predetermined peripheral speed difference with respect to the rollers, and an ink transfer roller 18 that is driven to rotate at a printing speed, and a printing plate around which ink supplied to the ink transfer roller 18 is wound around a plate cylinder 33 (see part of FIG. 18). 3
The ink jet printer includes an ink roller group 35, an ink setting roller 36, and a blanket cylinder 37 (see part of FIG. 18) that receives a transfer of a picture from the printing plate 34.

The ink fountain 28 includes an ink source roller 26, left and right side plates 20a and 20b, and an ink adjusting member 29.
And so on. The ink adjusting member 29 is configured by arranging a plurality of plates in parallel along the axial direction of the ink source roller 26. Each of the ink adjusting members 29 is oscillated (elevated and lowered) independently about the rear end fulcrum shaft 39 by the ink amount adjusting device 42, that is, each of the ink adjusting members 29 independently. Therefore, if the gap between the lower end of each ink adjusting member 29 and the outer peripheral surface of the ink source roller 26 is finely adjusted for each ink adjusting member in accordance with the pattern to be printed, the ink film that is rotated and transferred via the ink source roller 26 can be obtained. The thickness (ink supply amount) can be appropriately changed and set in the axial direction of the ink source roller 26. The transfer supply amount of the ink is based on the ink source roller 2
6 The amount of rotation (angle) of rotation and the ink adjusting member 29
The gap between the lower end of the ink roller 26 and the outer peripheral surface of the ink source roller 26, that is, the opening of the ink adjusting member 29, can be appropriately adjusted and set.

In the ink supply device 3, the ink filled in the ink fountain 28 is rotated and transported through the gap at the lower end of the ink adjusting member 29 while adhering to the outer peripheral surface of the ink source roller 26, and is moved toward the ink transfer roller 18. Transferred. Subsequently, as in the case of the ink supply device 4 shown in FIG. 18, the ink is appropriately kneaded in the process of successively transferring the ink roller group 35 downstream from the ink transfer roller 18, and then the ink forming roller 36 Is supplied to the printing plate 34 wound around the plate cylinder 33, and is then transferred to the blanket cylinder 37 as a picture via the printing plate 34. Thereafter, the image is transferred onto both surfaces of the web 44 synchronously running between the pair of blanket cylinders 37, and printing of a predetermined color is performed.

A keyless type ink supply device 4 shown in FIG. 18 includes an ink container 30, an ink supply roller 26 to which ink is supplied from an ink supply nozzle 8, and an ink supply roller 2.
6, a doctor blade 32 that controls the amount of ink supplied to the ink source roller 26 while maintaining a predetermined gap, receives ink from the ink source roller 26, and has a predetermined peripheral speed difference with respect to the ink source roller 26. An ink delivery roller 18 that is driven to rotate at a printing speed; an ink roller group 35 that supplies ink supplied to the ink delivery roller 18 to a printing plate 34 wound around a plate cylinder 33; an ink application roller 36; It is composed of a blanket cylinder 37 and the like that receives a transfer of a pattern from the plate 34. Note that FIG.
In the figure, 16 is a pipe, 31 is an ink pump, 45 is a dampening water device, and 47 is a motor for driving the ink pump 31.

In the ink supply device 4, the ink filled in the ink container 30 is jetted and supplied to the outer peripheral surface of the ink source roller 26 through the ink supply nozzle 8, and thereafter, is uniformly distributed in the axial direction by the doctor blade 32. The ink is adjusted to the ink film thickness and transferred to the ink transfer roller 18.
Subsequently, after being kneaded appropriately in the course of sequentially transferring the ink roller group 35, the plate cylinder 33 is transferred via the ink forming roller 36.
Is transferred and supplied to the printing plate 34 wound around. In addition, printing plate 3
4, the image is transferred to the peripheral surface of the blanket cylinder 37 as a picture, and is transferred onto the web 44 which is in contact with the blanket cylinder 37 and travels, thereby completing a predetermined printing.

The ink pump type ink supply device 2 (see FIG. 16), ink fountain type ink supply device 3 (see FIG. 17), and keyless type ink supply device 4 (see FIG. 18) described above are As shown in FIG. 15, the ink supply devices 2, 3, and 4 have the following problems since they are often located at the bottom of the printing device. (1) The attachment / detachment of the device due to ink exchange was not sufficiently considered. For example, the ink pump 7 used in the ink pump system is a beam (also used as a frame cross beam).
A support block is provided on top of the support block, and 2
It is designed to be fixed via individual fixing bolts 17. For this reason, since the fixing bolt 17 is attached to the inner side of the passage of the web 44 (inside of the printing apparatus), when the ink supply device 2 (or the ink supply devices 3 and 4) is to be taken out and replaced, it is necessary to use a narrow space. This was a replacement work, and the workability when replacing the ink pump 7 (or the ink supply devices 3 and 4) of the ink supply device 2 with the replacement was very poor. (2) In addition, it was difficult to change some inks to inks of different colors. That is, the ink supply device 2,
Since the replacement work of 3 and 4 is not easy, it is difficult to cope with the case of performing spot color printing on a partial page, and there is a problem that it takes time to change the setting, thereby lowering productivity.

An object of the present invention is to provide an ink supply apparatus for a printing apparatus which has been improved to solve these problems and which can easily replace the ink supply apparatus.
In the present invention, in order to achieve the above object, in the ink supply device of a printing apparatus which is divided into a plurality of sets of ink supply units in the machine width direction and the respective ink supply units are arranged in parallel, The ink supply units are supported by linearly moving bearings, and each ink supply unit is individually pulled out from its installation location and replaced.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an ink supply device of a printing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, in FIGS. 1 to 14, components having the same functions as those shown in FIGS. 15 to 18 are denoted by the same reference numerals. 1 to 5 show a first embodiment of an ink supply device of a printing apparatus according to the present invention, and more specifically, show an ink pump type ink supply device 2 installed in a newspaper rotary press. .

In the ink supply device of the present embodiment, a plurality of (for example, four, but not limited to, four) sets of ink pump type ink supply units in the machine width direction in one printing apparatus. The ink pump unit (ink supply unit) 10 is divided, and the respective ink pump units 10 are arranged side by side.
Have a structure that can be attached and detached independently and independently. The ink pump type ink supply device 2 employed in the present embodiment is substantially the same as that described in the section of the prior art, and a detailed description of the configuration will be omitted. The ink pump unit 10 is formed by integrally forming a plurality of ink pumps 7 as one set. Thus, the ink supply device 2 is configured by, for example, four ink pump units 10 arranged side by side in the machine width direction. In the present embodiment, the ink supply device 2 is
A plurality (for example, 8 in the case of the printing apparatus shown in FIG. 15)
The table is, of course, not limited to this. ).

Here, a specific structure of the ink supply device 2 of the embodiment will be described. A table 11 is provided on the lower surface on both sides of the ink pump unit 10, while a beam 12 is stretched across the frame (not shown) of the printing apparatus of the embodiment in the width direction. A support block 13 is fixed on the upper surface of the beam 12 so as to face a direction perpendicular to the beam. The support block 13
Are provided corresponding to the tables 11 provided on the lower surfaces on both side ends of the ink pump unit 10. One side 14a of the linearly movable bearing 14 is attached to the support block 13, and another side 14b of the linearly movable bearing 14 is attached to the base 11 side. Thereby, the table 11
Can move in a direction perpendicular to the beam 12 with respect to the support block 13. As illustrated in detail in FIG. 3, the illustrated linearly movable bearing 14 is composed of a bearing outer frame 14a, a bearing inner frame 14b, and balls incorporated between the two frames. In addition, as the linearly movable bearing 14, there are various other types such as a type that slides the outer frame and the inner frame, and the type is not limited to the one used in the present embodiment. In FIG. 5, 5 is an ink circulation tank, and 6 is an ink pump. In the present embodiment, with the above-described configuration, each ink pump unit 10 can be freely moved along the linearly movable bearing 14 with a small force.

In this embodiment, it is preferable that each ink pump unit 10 can be fixed at its maximum drawing position and its pushing position. For example, when the ink pump unit 10 is pulled out, the ink pump unit is fixed by the stopper of the linearly movable bearing itself (not shown).
At the time of pushing, the stopper 15 attached to the support block 13 may be rotated about a fulcrum shaft 25 as shown in FIG. 3 to fix the movement of the linearly movable bearing 14b. The ink pump unit 10
It goes without saying that various mechanisms (not shown) other than the exemplified structure can be adopted as the fixing method of the above.

Next, a case where spot printing is performed using the ink supply device 2 of the present embodiment will be described. First, as preparation, the valve 38 of each ink pump unit 10 is closed, and the joint 39 is removed. Subsequently, after the power is turned off, wiring connectors (not shown) provided on the ink pump 7 are removed. After this, the linearly moving bearing 14b
The stopper 15 fixing the portion is released by rotating and retracting. Further, as shown in FIG.
0 is moved along the linearly moving bearing 14 and pulled out toward the user. At this time, the ink pump unit 1
0 can be moved while being connected to the ink supply nozzle 8 (see FIG. 16) by a flexible pipe (tube) 9, so that the joint 40 can be removed and only the ink pump unit 10 can be moved. .

Next, the ink pump unit 1
After removing 0 and transporting it outside, it is replaced with an ink pump unit 10 having a different ink color. Thereafter, the previously removed pipe joints (such as the valve 38 and the joint 40) and the wiring connectors are connected. Next, the desired ink feed pump 6 is operated to feed the replaced new ink to the ink supply nozzle 8 engaged (contacted) with the ink transfer roller 18 (see part of FIG. 16). Thereby, the ink filled in the ink circulation tank 5 is supplied to the ink pump 7 via the ink pressure pump 6 and the pipe 9.
Subsequently, after the supply amount per unit time is appropriately controlled in the ink pump 7, the ink is supplied to the ink supply nozzle 8 via the pipe 9. In addition, the ink
In a state in which the ink is diffused in the axial direction of the ink transfer roller 18 by the ink supply nozzle 8, the ink is transferred and supplied to the outer peripheral surface of the ink transfer roller.

The ink supply device of the present embodiment has the following effects by functioning as described above. (1) Since the ink pumps 7 arranged side by side can be collectively drawn out as one set of units, when it is desired to replace each ink pump unit 10 individually, the ink pump units 10 are individually connected to the support block 13. They can be pulled out to a wide area on the near side to perform their replacement work. Thereby, each ink pump unit 1
0 can be greatly improved, and the time required for replacing page packs can be reduced. (2) The method of fixing the ink pump unit is simple, and spot printing can be easily switched and performed in addition to the usual printing. That is, in the present embodiment,
Each ink pump unit 1 constituting the ink supply device 2
Since the ink pump unit 10 can be detached independently, the ink of some ink pump units 10 can be easily changed to another color ink, and a countermeasure when spot color printing is performed on a partial page. Easy. Therefore, for a plurality of pages (for example, four pages) to be printed in parallel, it is possible to easily print only some of the pages by changing the ink color, thereby reducing the work time required for changing the settings. (3) According to the above items (1) and (2), labor can be saved and productivity can be improved. And so on.

FIGS. 6 to 10 show a second embodiment of the ink supply apparatus according to the present invention. More specifically, FIG. 6 to FIG. 10 show an ink fountain type ink supply apparatus 3 installed in a newspaper rotary press. . In the ink supply device of the present embodiment, a plurality of (for example, four, but not limited to, four) ink supply units of the ink fountain type ink supply unit in the machine width direction in one printing device. The ink supply unit 41 is divided into 41, and the respective ink supply units 41 are arranged side by side so that each ink supply unit 41 can be independently attached and detached independently. In addition, the ink supply device 3 of the present embodiment
Since its basic structure and ink supply function are almost the same as those of the ink fountain type ink supply device 3 described in the section of the prior art, detailed description of its configuration is omitted. The ink supply unit 41 includes an ink source roller 26 forming one side surface of the ink fountain 28 and the left and right side plates 20.
a, 20b, a plurality of ink adjusting members 29 forming a bottom plate of the ink fountain, an ink amount adjusting device 42 disposed corresponding to each of the ink adjusting members, and the like.

Here, a specific structure of the ink supply unit 41 of the present embodiment will be described. The ink supply unit 41 has a so-called integral structure in which the ink adjusting member 29 is supported by both side plates 20a and 20b around the fulcrum shaft 39, and the side plates 20a and 20b are integrally mounted on the gantry 43. I have. The gantry 43 is disposed in the machine width direction. On the lower surface on both sides of the gantry 43,
The stands 11, 11 are respectively attached to the mount in a direction perpendicular to the mount. Beam 12 spanned across machine width
A support block 13 is fixed on the upper surface in a direction perpendicular to the beam, corresponding to the table 11 provided on the lower surface of the ink supply unit 41. Between the support block 13 and the base 11, linearly moving bearings 21a, 21
b is incorporated. The linearly moving bearings 21a and 21b of the present embodiment have a structure in which a dovetail groove is formed, and a gap adjusting device is provided at an engaging portion of the dovetail groove so as to correct backlash due to processing accuracy, assembly accuracy, and the like. (Not shown). In FIG. 6, reference numeral 22 denotes a stopper that defines a stop position when the ink supply unit 41 is pushed in. In the present embodiment, a stopper (not shown) is provided to define the position of the ink supply unit 41 when the ink supply unit 41 is pulled out at the maximum.

Since the ink supply device 3 of this embodiment is configured as described above, the ink supply unit 41 can be freely moved with a small force along the linearly moving bearings 21a and 21b. It can be fixed at the maximum draw-out position and the push-in position (the operation position of the ink supply unit 41), respectively. In the present embodiment, when the ink supply unit 41 is pulled out, the unit is fixed by a stopper (not shown), and when the ink supply unit 41 is pushed in, the stopper 23 attached to the support block 13 about the fulcrum shaft 25 is used. In order to rotate and set a more reliable position, one of the linearly movable bearings 21b is pressed and fixed by a holding screw 24 provided on the swinging end side of the stopper 23. As a method for fixing the ink supply unit 41, it goes without saying that various mechanisms (not shown) can be employed in addition to the illustrated structure.

In the ink supply device 3 of the present embodiment, as described above, the ink fountain type ink supply device 3 is divided into a plurality of sets in the machine width direction, and each of the sets is configured as an independent unit so that it can be detached independently. Therefore, for a plurality of pages (for example, four pages) to be printed in parallel, it is possible to print only some of the pages by changing the ink color, and it is also easy to print only a specific page. When normal printing is performed using the ink supply unit 41 of the ink fountain type, the ink in the ink fountain 28 is supplied to the ink source roller 2.
6, the ink is supplied from the gap between the tip of the ink adjusting member 29 and the ink source roller 26,
The ink is transferred to the downstream side of the ink transfer roller 18 through the gap between the ink transfer roller 6 and the ink transfer roller 18, thereby printing a predetermined color.

By the way, the ink supply device 3 of the present embodiment
When printing is performed by changing from the above setting state to another color ink by using, the following operation is performed. First, the pair of holding screws 24 fixing the linearly moving bearing 21b are loosened, and the stopper 23 is rotated to release the fixing of the jar type ink supply unit 41, as shown in FIG. To the linearly moving bearing 21a,
Move it at 21b and pull it out. Next, the gantry 43
After removing the fountain-type ink supply unit 41 from the printer and carrying it out of the apparatus, another fountain-type ink supply unit 41 having a different ink color is carried in and replaced. Next, the ink source roller 2
The gap between the ink adjusting member 29 and the lower end of the ink adjusting member 29 is adjusted, and the replaced new ink is supplied from the ink source roller 26 to the outer peripheral surface of the ink transfer roller 18. As a result, the ink is transferred and supplied from the outer peripheral surface of the ink transfer roller 18 to the printing plate 34 on the plate cylinder 33 via the downstream ink roller group 35, and printing is performed via the next blanket cylinder 37.

The ink supply unit 41 of the present embodiment functions as described above, so that the same effects as those of the first embodiment can be obtained. There is an effect that color mixing of the ink does not occur and color exchange can be performed reliably.

FIGS. 11 to 14 show a third embodiment of the ink supply device according to the present invention. More specifically, FIG. 11 shows a keyless ink supply device 4 installed in a newspaper rotary press.
It shows. The ink supply device 4 of the present embodiment includes:
As shown in the figure, a plurality of (for example, four, but not limited to, four) keyless ink supply units 45 are provided in a single printing apparatus 1 with a keyless ink supply unit in the machine width direction. And the ink supply units 45 are arranged side by side.
Have a structure that can be attached and detached independently and independently. The keyless ink supply device 4 of the present embodiment is
Since the basic structure and the ink supply function are almost the same as those of the keyless ink supply device 4 described in the section of the related art, a detailed description of the configuration will be omitted.

The ink supply unit 45 of this embodiment is
The ink container 30, the ink pump 31, the ink supply nozzle 8, and the doctor blade 32 are attached to the gantry 46, so that the ink container 30, the ink pump 31, the ink supply nozzle 8, and the doctor blade 32 can be independently attached and detached as a unit having an integral structure. The bases 11 are respectively fixed to lower surfaces on both sides of the lower gantry 46 of the ink supply unit 45 in the machine width direction. The beam 12 is stretched over the printer frame in the width direction. The support block 13 is provided on the upper surface of the beam 12 in a direction perpendicular to the beam, that is, in correspondence with the table 11 provided on the lower surface of the ink supply unit 45.
Is fixed. Also, the support block 13 and the table 1
Linear moving type bearings 21a and 21b are incorporated between the two bearings. The linear moving bearings 21a, 21
1b has a structure in which a dovetail groove is formed as in the second embodiment, and a clearance adjusting device is provided on the side of the dovetail groove in order to correct backlash associated with processing accuracy, assembly accuracy, and the like. In FIG. 11, reference numeral 22 denotes a stopper that defines a position when the ink supply unit 45 is pushed. Further, in the present embodiment, a stopper (not shown) for defining the position of the ink supply unit 45 at the time of maximum withdrawal is provided, and if this stopper is released, it can be taken out to the outside. I have. In FIGS. 11 and 14, reference numeral 16 denotes a pipe.

In the ink supply device 4 of the present embodiment, the ink supply unit 45 is configured as described above.
Can be freely moved along the linearly moving bearings 21a and 21b with a small force. Thus, when the ink supply unit 45 is pulled out, the unit is fixed by a stopper (not shown) as in the second embodiment, and the stopper attached to the support block 13 when the ink supply unit is pushed in. 23 (not shown, see FIG. 8), and the unit 45 can be fixed by pressing and fixing the linearly movable bearing 21b with a holding screw (not shown).
In this embodiment, the ink supply unit 45 is also used.
As the fixing method, various mechanisms other than those having the exemplified structure can be adopted. Since the ink supply device 4 of the present embodiment is configured as described above, the ink supply unit 41 can be freely moved along the linearly moving bearing 21 with a small force, and when printing, And the ink supply unit 45 to the ink source roller 2
6 is engaged.

Using the ink supply device 4 of the present embodiment,
When spot printing is performed using a predetermined color ink, the same operation as in the second embodiment is performed as shown in FIG. That is, the ink supply unit 45
Is removed, and a keyless ink supply unit 45 having a different ink color is attached. Thereby, the ink of another color can be transferred and supplied to the outer peripheral surface of the ink source roller 26, and it is possible to print only a part of the pages by changing the ink color for a plurality of pages to be printed in parallel. It becomes possible. Further, in the ink supply device 4 according to the present embodiment, by configuring the ink supply unit 45 as described above, the same effect as that of the first embodiment can be obtained. In one printing device, different ink supply devices (2, 3,
If 4) is appropriately provided in parallel, and these are selectively switched and used, there is an effect that these can be applied to a keyless printing apparatus which does not require adjustment in the width direction.

[0033]

As described above, according to the ink supply apparatus of the printing apparatus according to the present invention, the ink supply unit is divided into a plurality of sets in the machine width direction, and the ink supply units are arranged in parallel. In the ink supply device of the apparatus, since each of the ink supply units is supported by a linear moving bearing, and each of the ink supply units is individually pulled out from its installation location and replaced,
The ink supply units can be individually pulled out to a wide area on the front side to replace them. Thereby, the replacement workability of each ink supply unit is greatly improved, and the replacement time of the page pack can be reduced. Further, in the present invention, since each ink supply unit constituting the ink supply device can be independently attached and detached, the ink of some ink supply units can be easily changed to another color ink, and the ink supply unit can be partially changed. It is also easy to cope with the case where spot color printing is performed on a specific page. Therefore, even for a plurality of pages (for example, four pages) to be printed in parallel, it is possible to easily change only a part of the pages by changing the ink color and to shorten the work time required for the setting change. In addition, labor can be saved and productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of an ink supply device according to the present invention, and particularly showing an ink supply device of an ink pump type installed in a newspaper rotary press.

FIG. 2 is a diagram showing a state viewed in a direction indicated by an arrow A in FIG.

FIG. 3 is an enlarged view showing a portion indicated by an arrow B in FIG. 1;

FIG. 4 shows a first embodiment of an ink supply device according to the present invention, and particularly shows a state where an ink supply unit of an ink pump type ink supply device installed in a newspaper rotary press is individually pulled out from its installation location. It is a side view.

FIG. 5 is a diagram showing a first embodiment of an ink supply device according to the present invention, and particularly showing an ink supply path in an ink pump type ink supply device installed in a newspaper rotary press.

FIG. 6 is a side view showing a second embodiment of the ink supply apparatus according to the present invention, and particularly showing an ink fountain type ink supply apparatus installed in a newspaper rotary press.

FIG. 7 is an enlarged view of a portion indicated by an arrow C in FIG. 6;

8 is an enlarged plan view showing a portion indicated by an arrow D in FIG.

FIG. 9 is an enlarged front view showing a portion indicated by an arrow D in FIG. 6;

FIG. 10 shows a second embodiment of an ink supply device according to the present invention, and particularly shows a state where an ink supply unit of an ink fountain type ink supply device installed in a newspaper rotary press is individually pulled out from its installation location. It is a perspective view.

FIG. 11 is a side view showing a third embodiment of the ink supply device according to the present invention, and in particular, showing a keyless ink supply device installed in a newspaper rotary press.

FIG. 12 is a rear view showing a third embodiment of the ink supply device according to the present invention, and particularly showing a keyless ink supply device installed in a newspaper rotary press.

FIG. 13 is an enlarged view of a portion indicated by an arrow E in FIG.

FIG. 14 is a perspective view showing a third embodiment of the ink supply device according to the present invention, in particular, a state in which the ink supply units of the keyless type ink supply device installed in the newspaper rotary press are individually pulled out from their installation locations. FIG.

FIG. 15 is a diagram schematically illustrating an overall configuration of a printing device in a newspaper rotary press.

FIG. 16 is a schematic diagram showing an ink pump type ink supply device installed in a newspaper rotary press.

FIG. 17 is a schematic diagram showing an ink fountain type ink supply device installed in a newspaper rotary press.

FIG. 18 is a schematic diagram showing a keyless type ink supply device installed in a newspaper rotary press.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 printing device 2 ink pump type ink supply device 3 ink bottle type ink supply device 4 keyless type ink supply device 5 ink circulation tank 6 ink pressure pump 7 ink pump 8 ink supply nozzle 9 piping (flexible tube) 10 ink pump Unit 11 units 12 Beam 13 Support block 14a, 14b Linearly movable bearing 15 Stopper 16 Piping 17 Fixing bolt 18 Ink transfer roller 20 Side plate 21a, 21b Linearly movable bearing 22 Stopper 23 Stopper 24 Holding screw 25 Support shaft 26 Ink original roller 28 Ink fountain 29 Ink adjusting member 30 Ink container 31 Ink pump 32 Doctor blade 33 Plate cylinder 34 Printing plate 35 Ink roller group 36 Ink application roller 37 Blanket cylinder 38 Valve 3 Ink supply unit in the ink supply unit 42 the metering device 43 frame 44 web 45 keyless system joint 40 joint 41 ink fountain system 46 gantry 47 motor

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuhiro Naito 5007 Itozakicho, Mihara City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd.Paper & Printing Machinery Division (72) Inventor Koji Nishiyama 5007 Itozakicho, Mihara City, Hiroshima Prefecture Mitsubishi Heavy Industries Stock (72) Inventor Showa Seo 5007, Itozakicho, Mihara-shi, Hiroshima Mitsubishi Heavy Industries, Ltd. F-term in Paper & Printing Machinery Division (reference) 2C250 DB04 DB14 DB17

Claims (5)

[Claims] 1. An ink supply device for a printing apparatus, which is divided into a plurality of sets of ink supply units in a machine width direction and in which each ink supply unit is arranged side by side, the ink supply units are supported by linear sliding means. An ink supply device for a printing apparatus, wherein each of the ink supply units is individually pulled out from its installation location and replaced. 2. The ink supply device according to claim 1, wherein the linear sliding means is a linear moving bearing. 3. The ink supply device according to claim 1, wherein each of said ink supply units is obtained by dividing an ink supply device of an ink pump type into a plurality of sets in a machine width direction. . 4. The ink supply apparatus according to claim 1, wherein each of said ink supply units is obtained by dividing an ink fountain type ink supply apparatus into a plurality of sets in a machine width direction. . 5. The ink supply device for a printing press according to claim 1, wherein each of said ink supply units is obtained by dividing a keyless type ink supply device into a plurality of units in a machine width direction.