JPS5851828B2 - Gravure cylinder - Senjiyousouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gravure cylinder cleaning device.

Conventionally, a cylinder drive device was installed for each type of washing, and once the washing was completed, the cylinders were moved to the next washing tank to complete each process, but this method is often used when the cylinders are light. .

In addition, the tank is fixed and a pump sends various cleaning liquids, and cleaning is performed by exchanging the liquids.

This method is effective when the cylinder is large and space is very limited.

However, there is a problem with the stability of the cleaning solution.

Moreover, the time required for each process also becomes longer. Copper plating is performed to create a removable metal layer on cylinders for gravure printing presses, but pre-processes include electrolytic cleaning, water washing, and pickling.

The present invention improves the above-mentioned disadvantages of this washing system, and is particularly advantageous when used in large-sized cylinders. It is equipped with an electrolytic washing tank that moves up and down below the cylinder, and a washing tank for acid solution or water that moves back and forth below the cylinder, so the heavy cylinder does not need to be moved during each washing process. Since each cleaning process is completed by moving the liquid tank, the purpose is to reduce the power required to move the large cylinder, facilitate automation, and complete each process at low cost and effectively.

When automating each process by moving a large cylinder, the equipment must have sufficient strength, resulting in an increase in size.

It is therefore advantageous to move lighter washing tanks.

That is, in the present invention, the cylinder is fixed and one tank is moved up and down at the bottom of the cylinder to be immersed in the liquid and separated from the liquid, thereby achieving the same result as moving the cylinder. can get.

During this time, the cylinder continues to rotate and is free to rotate or stop.

In addition, for the cleaning water receiver that moves horizontally at the cylinder position, move the tank to the position below the cylinder and insert it, spray the cleaning liquid from above the cylinder to wash the cylinder, and then pour the cleaning liquid into this tank. Receive it at

This tank flows down to a storage tank provided below through a drainage channel provided at the bottom.

The acid solution tank is introduced into the acid solution tank and the washing water tank by a switching device that divides the water washing waste water and the acid washing solution flowing down into two storage tanks.

In this case, it is also possible to use several types of liquids using pumps and switching valves.

If two horizontally moving tanks are provided next to the cylinder, one at the front and the other, it will be more convenient to switch between several types of liquids.

Next, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic cross-sectional view from the front of the device of the present invention, and FIG. 2 is a schematic cross-sectional view from the side thereof.

The cleaning process is performed in the order of electrolysis, water washing, pickling, and water washing.

First, use a hoist to place cylinder 1 on top of the eyeball.

Next, the eyeball drive switch is turned on to operate the eyeball drive motor 9 and rotate the cylinder.

The motor 12 for moving the electrolytic cleaning tank 2 at the bottom of the cylinder
Turn on the switch and let it rise.

Stop at an appropriate position depending on the size of the cylinder.

After about 1 minute of electrolytic cleaning, the tank is replaced in response to a signal from the timer.

At this time, the electrolytic cleaning tank 2 is lowered, and the water washing and pickling tank 3 moves horizontally and stops in a state where it wraps around the cylinder.

Subsequently, the electromagnetic valve is operated to supply water to the pipe 4 equipped with the washing spray nozzle, and the timer completes the washing.

During this time, the drainage rain gutter 5 is operated to the flushing side and the button is pressed, and the drainage water flows down to the flushing tank 7 by the drainage guide 6.

The drainage gutter 5 is operated using an air cylinder 8 to distribute wastewater to a water washing tank 7 or an acid liquid tank 10.

When the washing is completed, a water draining timer is activated, and the gutter 5 is maintained for the 11 time period for the purpose of draining water.

Next, the pickling pump is activated, the gutter 5 is activated and switched to the acid liquid tank side, and the acid liquid stored in the acid liquid tank 10 is sent to a pipe 11 equipped with a spray nozzle to perform pickling.

Once the time set on the timer is over, the pump will stop and the pickling process will stop.

For draining purposes, the gutter 5 is kept in its 1\ state for a period of time.

Next, the rinsing process begins again, but once the rinsing is completed as described above, apply Ballard stripper by hand, press the stop button, the cylinder will stop rotating, and the tank will escape from a part of the cylinder to the electrolytic cleaning tank at the bottom. Cylinder 2 rises and stops approximately 100 mm below the eyepiece, and cylinder 1 is removed by a hoist.

The process for the next cylinder is then repeated as described above.

The advantage of this cleaning method is that it can reduce energy consumption, is smaller and cheaper than conventional methods, and can be automated.

In addition, since only the tank is changed, the temperature and composition of the liquid are maintained stably, and by performing each process efficiently according to the purpose, the transition time between each process can be shortened, and the kneading operation is simple, so there is less trouble. etc.

[Brief explanation of drawings]

FIG. 1 is a schematic front cross-sectional view of the cylinder cleaning device of the present invention, and FIG. 2 is a schematic side cross-sectional view. Explanation of symbols 1...Cylinder 2...
・Electrolytic cleaning tank (vertical moving tank), 3... Water washing, pickling tank (horizontal moving tank), 4... Spray pipe for washing, 5... Switching gutter, 6...Drainage guide, 7...Washing tank, 8...
Air cylinder 9... Eyeball 1 drive motor,
10...Acid liquid tank, 11...Acid liquid spray pipe, 12...Motor for moving the tank.

Claims (1)

[Claims] 1. In the gravure cylinder cleaning process, an electrolytic cleaning tank is installed in which the cylinder is rotated in a fixed position and the cleaning tank is moved up and down below the cylinder, and an acid or water cleaning tank is moved back and forth below the cylinder. This gravure cylinder cleaning device is characterized by: