JPH0665489B2 - Printing cylinder transport and inking device for printing machines - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inking device for a printing press, and more particularly to an inking device that also serves as a plate cylinder transport device.

The printing unit of the gravure rotary printing machine is provided with a plate cylinder and an inking device for applying ink to the plate cylinder. The inking device supplies an ink pan for applying ink to the plate cylinder and an ink supply to the ink pan. It consists of an ink pump, ink tank, etc. This inking unit is generally installed in the printing unit, and the ink pan can be moved up and down to replace the plate cylinder. In such a conventional structure, in order to replace the plate cylinder, the plate cylinder is placed on a suitable carrier and carried to the vicinity of the printing unit, and the ink pan is lowered to create a working space in the plate cylinder mounting portion, which is used. I will remove the cylinder and attach a new plate cylinder,
The heavy plate cylinder had to be attached and detached in a narrow space, resulting in extremely poor workability. Moreover, in order to replace the ink, the ink pan, the ink pump, and the ink tank must be thoroughly cleaned, which takes a very long time, and there is also a drawback that the printer is out of service for a long period of time. .

SUMMARY OF THE INVENTION The present invention is intended to solve the drawbacks of the prior art, and an object thereof is to provide an inking device that facilitates attachment and detachment of a plate cylinder and that allows ink exchange to be performed very easily and in a short time.

The present invention made to achieve the above object is a bogie, and a plurality of wheels mounted on the bogie so that the direction of the bogie can be changed.
An operating mechanism for operating the direction of the wheels, an ink pan held by the carriage so as to be able to move up and down, a lifting mechanism for lifting the ink pan, an ink pump and an ink tank mounted on the carriage for supplying ink to the ink pan, ,
The gist is a plate cylinder transporting and inking device of a printing machine having a plate cylinder support detachably placed in the ink pan.

In the apparatus having the above configuration, since the direction of the wheels provided on the carriage can be changed by the operation mechanism, the traveling direction of the carriage can be changed to a right angle, and the carriage can be changed from the side of the printing machine to the printing unit. It is possible to feed it in the interim and then redirect it into the printing unit or vice versa from the printing unit out of the printing press. In other words, the inking device and plate cylinder can be easily moved in and out of the printing unit in a short time, and since no holes are made in the frame of the printing unit, the inking device of the existing printing machine can be easily changed. . Furthermore, since the ink pan moves up and down by the lifting mechanism, the ink pan can be set at a preferred position according to the diameter of the plate cylinder, and good printing operation can be performed using plate cylinders of various diameters. Also,
By placing the plate cylinder support in the ink pan and raising and lowering the ink pan, the plate cylinder can be easily attached to and detached from the chuck device provided in the printing unit.

Hereinafter, embodiments of the present invention shown in the accompanying drawings will be described in detail.

1 to 3, the inking device 1 includes two front wheels 2
And a trolley 4 with two rear wheels 3. The front wheels 2 and the rear wheels 3 are attached to vertical support shafts 5 and 6, respectively, and the support shafts 5 and 6 are rotatable with respect to the carriage 4. These support shafts 5 and 6 are levers 7 and 8 as shown in FIG.
9, 10, 11, rod 12, 13, 14, fan gear 1
The wheels 5 and 16 are connected to each other so as to rotate together, so that the front wheel 2 and the rear wheel 3 turn at the same time. What should be noted here is that the front wheels 2 and the rear wheels 3 are connected so as to turn in mutually opposite directions. With this configuration, the front and rear wheels can be turned while the carriage 4 is traveling, and the carriage 4 can be smoothly turned into an arc shape. Referring to FIGS. 1 to 3, an arm 17 is fixed to one of the support shafts 6 of the rear wheel 3, and a grip 18 is attached to the tip of the arm 17. Thus, the front and rear wheels 2, 3 can be operated by operating the grip 18. An arc groove 17A is formed in the arm 17 so that the arm 17 can be fixed at an arbitrary angular position.
It is engaged with the fixture 19.

As can be seen from FIG. 2 in particular, the carriage 4 has a bearing block 20 and a rack shaft 21 perpendicular to the block 20.
Is slidably inserted, and an ink pan 22 is fixed to the upper end of the rack shaft. The rack shaft 21 has a rack 2 on the side.
1A is formed and meshes with the pinion on the outer surface of the pinion shaft 23. A worm wheel 24 is provided at one end of the pinion shaft 23.
Is fixed, and the worm wheel 24 meshes with the worm 26 of the operating shaft 25. Thus, by rotating the handle 27 at one end of the operation shaft 25, the pinion shaft 23
The rack shaft 21 moves up and down by the rack 21A, and the ink pan 22 moves up and down.

A plate cylinder support 30 is placed in the ink pan 22.
The plate cylinder support 30 includes a main body 31 and a roller 32 rotatably held by the main body 31, and the plate cylinder 33 is mounted on the roller 32.
Is retained. The roller 32 is made of a soft material so as not to damage the plate cylinder, and as shown in FIG.
A gear gap G is formed between the main body 31 and the main body 31 so that the gear G can be moved slightly in the axial direction of 3. This is because when the plate cylinder 33 is held by a plate cylinder chuck device (not shown) of the frame 41 of the printing unit 40, as will be described later, even if the plate cylinder moves in the axial direction, the roller 32 and the plate cylinder 33 move together. Move to
This is because the plate cylinder 33 is not scratched. In order to place the plate cylinder support 30 at a predetermined position in the ink pan 22, the ink pan 22
The bottom surface is provided with an arcuate projection 22A, while the bottom surface of the main body 31 is formed with a recess that fits into the projection 22A.

The carriage 4 is further equipped with an ink tank 34, an ink pump 35, a filter 36, etc.
Is supplied with ink through a supply pipe (not shown). An ink return pipe (not shown) is provided between the ink pan 22 and the ink tank 34.

In FIGS. 5 and 6, the printing unit 40 has frames 41, 41 on both sides, and the frame holds a large number of guide rollers 42 and impression cylinders 43. A space is provided below the impression cylinder 43 so that the carriage 4 can enter therein. Further, the size of the carriage 4 is set such that the frame 41 of the adjacent printing unit,
Frame 41 of one printing unit that passes between 41
It is defined so that it can pass between No. 1 and No. 41.

Next, a method of using the inking device 1 according to the present invention will be described. First, a procedure for first assembling the inking unit 1 to the printing unit 40 will be described. The plate cylinder support 30 is placed in the ink pan 22, and the dolly 4 is manually pushed with the plate cylinder 33 placed on the plate cylinder support 30. As shown in FIGS. To the position B between the printing units. Next, at position B, a handle 18 for steering the rear wheel 3
To rotate the front and rear wheels 2, 3 by 90 degrees to move the carriage 4 to the position C. This state is the state shown in FIGS. Next, referring to FIG. 2, the handle 2
7 is operated to raise the ink pan 22 to raise the plate cylinder 33 to a predetermined position, and then the plate cylinder is supported by the chucking device provided on the frame 41 of the printing unit. Thereafter, the plate cylinder support 30 is removed, the ink pan 22 is positioned at a height suitable for applying ink to the plate cylinder 33, and ink is supplied by the ink pump to start the printing operation. During printing,
The trolley 4 remains stopped in the printing unit.

Next, the operation of replacing the plate cylinder will be described. During printing, the inking device 1 on which the plate cylinder to be replaced is placed is kept in position B in FIG. When the printing machine is stopped, first the plate cylinder in use is removed and placed on the ink pan 22 of the inking unit below it, the inking unit is moved to position D, and then it is fed to the side of the printing machine. At the same time, the new inking unit waiting at the position B is moved to the position C, the plate cylinder is attached according to the above procedure, and printing is restarted.

In the above embodiment, as shown in FIG. 5, the inking device 1 is moved from the position B into the printing unit and is moved from the printing unit to the position D opposite to the position B, that is, the ink. Allows the device to pass through the printing unit. This structure enables the plate cylinder and the inking device to be exchanged very quickly, and is very suitable, but it is not essential to the present invention, and the inking device 1 cannot pass through the printing unit and only comes in and goes out from one side. You can buy it.

As described above, the present invention is an inking device in which an ink pan, an ink tank, an ink motor, etc. are mounted on a carriage, and the ink pan can be moved up and down and the plate cylinder can be held. And inking device,
It has an excellent effect that it can be replaced easily and in a short time, the down time of the printing press can be shortened, and the operation rate can be improved.

[Brief description of drawings]

1 is a top view of an embodiment of the present invention, and FIG. 2 is a top view of FIG.
II-II arrow view, FIG. 3 is a III-III arrow view of FIG. 1, 4
FIG. 5 is a plan view showing a connected state of the front and rear wheels 2, 3, FIG. 5 is a schematic plan view showing a situation in which the inking device 1 is moved in and out of the printing unit, and FIG. 6 is a schematic side view thereof. 1 ... Ink device, 4 ... Cart 22 ... Ink pan, 30 ... Plate cylinder support 33 ... Plate cylinder, 34 ... Ink tank 35 ... Ink pump

Claims (1)

[Claims] 1. A trolley, a plurality of wheels mounted on the trolley so as to be changeable in direction, an operation mechanism for operating the direction of the wheels, an ink pan held up and down by the trolley, and an ink pan thereof. And a plate cylinder carrier of a printing machine having an elevating mechanism for moving up and down, an ink pump and an ink tank mounted on the carriage for supplying ink to the ink pan, and a plate cylinder support detachably placed in the ink pan. Inking device.