JPH07125187A - Ultrasonic washing machine - Google Patents

Abstract

PURPOSE:To automate the setting of a roller and to fully automate ultrasonic washing by dispensing with a measure preventing a washing soln. from penetrating in the attaching hole of a roller. CONSTITUTION:A pair of mutually opposed chuck parts 6 for holding an object to be washed, the cylinders 11 connected to the chuck parts to change the interval between the chuck parts 6, the work rotating motor 12 rotating the chuck parts 6, the shaking cylinder 13 for horizontally shaking the chuck parts 6 and the work part 10 for moving the chuck parts 6 up and down are provided. Further, a work transfer device composed of a work transfer cylinder horizontally moving the chuck parts 6 between a set position 15 and a washing tank, a compressed air pump 4 for supplying compressed air into the work through the chuck parts 6 and an ultrasonic washing machine main body 3 equipped with an ultrasonic vibrator 5 are formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning machine equipped with a cleaning tank for cleaning a hollow cylindrical object to be cleaned, and more particularly to an inking roller, an embossing roller and an anilox roller used in a rotary printing press. The present invention relates to an ultrasonic cleaning machine suitable for cleaning printing rollers such as.

[0002]

2. Description of the Related Art At present, a printing press using a printing roller is used in the printing industry. After the work of the printing press has been completed, the printing roller is removed, and the ink adhering to the roller is wiped off with a thinner and stored in a warehouse.

However, since the ink adhered to the printing roller has entered the printing surface 41 of the roller, it is difficult to completely wipe it off by hand.

As a solution to this, at present, a printing roller ultrasonic cleaning machine capable of cleaning the details with an aqueous cleaning liquid and ultrasonic waves is available on the market (printing roller manufactured by Sharp Corporation). Ultrasonic Cleaner UC-46
00).

This ultrasonic cleaning machine 43 has a structure shown in FIG. 5, a front view of which is shown in FIG. 5A and a side view of which is shown in FIG.

As shown in FIG. 5, a pair of supporting rollers 44 is provided on each side wall of the tank in which the cleaning liquid enters, and a roller 40 set by an operator between the supporting rollers 44 is rotated and horizontally shaken in the cleaning liquid. It is a semi-automatic device that can uniformly clean the cylindrical surface of the roller with ultrasonic waves generated from the ultrasonic transducer 45 from below while moving.

Here, the ultrasonic cleaning machine is an apparatus for immersing an article in a solvent (cleaning solution) subjected to ultrasonic vibration (20 KHz or more) to remove dirt, dust and the like adhering to the surface thereof.

[0008]

As described above, the setting of the roller 40 in the cleaning tank is performed by an operator, but there has been a long-felt demand for a fully automatic device that automates this operation.

However, generally, the roller used in the printing machine is hollow as shown in FIG. 4 in order to reduce the weight. Therefore, when the weak alkaline aqueous cleaning liquid enters the inside of the roller, the inside of the hollow is corroded later.

Therefore, conventionally, in the ultrasonic cleaning machine, the upper surface of the liquid is controlled according to the outer diameter of the roller so that the liquid does not enter the inside of the roller, and the liquid scraped by the rotation of the roller does not enter the inside of the roller. It is necessary to apply a sponge-like adsorbate to the roller end face, and these treatments
It was difficult to automate the setting of rollers and, by extension, to automate ultrasonic cleaning.

[0011] Therefore, the present invention, without the help of an operator,
It is an object of the present invention to provide an ultrasonic cleaning machine capable of preventing the liquid from entering the inside of the roller through the mounting hole and automating the process from setting the roller in the tank to cleaning.

[0012]

In order to solve the above problems, an ultrasonic cleaning machine according to the present invention has a compressed air supply means for supplying compressed air and an object to be cleaned held at its end. In addition, holding means for injecting the compressed air supplied from the compressed air supply means from the mounting hole of the object to be cleaned, and the object to be cleaned held by the holding means are conveyed to the cleaning tank to be cleaned It is characterized in that it is provided with a conveying means for rocking the cleaning object and a rotating means for rotating the cleaning object held by the holding means.

[0013]

The holding means holds the article to be cleaned at the end and injects the compressed air supplied from the compressed air supply means from the mounting hole of the article to be cleaned.

The conveying means conveys the object to be cleaned held by the holding means to the cleaning tank and swings the object to be cleaned during cleaning. Further, the rotating means rotates the cleaning target held by the holding means.

[0015]

FIG. 1 is a block diagram of a preferred embodiment of an ultrasonic cleaning machine according to the present invention.

The ultrasonic cleaning machine according to this embodiment has a work 1
A work transfer device 2 that holds and transfers the roller
The work 1 is provided with an ultrasonic cleaner main body 3 for performing ultrasonic cleaning. The work transfer device 2 has a chuck part 6 for holding the work 1 on its end surface, and a work transfer device 8 as a drive part.
It has an ultrasonic oscillator 5 for generating ultrasonic waves, and a washing machine control unit 9 for controlling the oscillation of the ultrasonic oscillator 5 and the height of the cleaning liquid level.

Further, in the ultrasonic cleaner, a compressed air pump 4 for supplying compressed air to the inside of the work through the chuck portion 6.
And a main control unit 7 for controlling the work transfer device 8, the compressed air pump 4, and the washing machine control unit 9.

According to the above construction, in the work transfer device 2, the work 1 is held at its end by the chuck portion 6 and driven by the work transfer device 8 to be transferred to the ultrasonic cleaning machine main body 3. Here, the work 1 is previously supplied with compressed air supplied from the compressed air pump 4.

The work 1 transferred to the ultrasonic cleaner main body 3 by the work transfer device 2 is immersed in the cleaning liquid and cleaned by the ultrasonic waves generated by the ultrasonic vibrator 5 controlled by the cleaning machine controller 9. To be done. In addition, the washing machine control unit 9
Also controls the height of the cleaning liquid surface.

The work transfer device 2, the compressed air pump 4, and the washing machine control section 9 are controlled by the main control section 7, respectively.

FIG. 2 is a diagram more specifically showing the ultrasonic cleaning machine according to this embodiment. FIG. 2 (a) is a front view of the ultrasonic cleaning machine.
(B) shows the side view.

The ultrasonic cleaning machine will be described below in more detail with reference to FIG.

The ultrasonic cleaning machine shown in FIG. 2 has a pair of chuck parts 6 facing each other for holding an object to be cleaned, a cylinder 11 connected to each chuck part for changing a gap between the chuck parts, A work rotation motor 12 for rotating the chuck part 6, a swing cylinder 13 for horizontally swinging the chuck part 6, a work upper and lower part 10 for vertically moving the chuck part 6, and the chuck part 6. And a compressed air pump 4 for supplying compressed air to the inside of the work via the chuck portion 6 and a work transfer device for horizontally moving the work position between the set position 15 and the cleaning tank. And the ultrasonic cleaner main body 3 including the ultrasonic vibrator 5.

FIG. 4 shows the shape of a general printing roller as an example of the work. Generally, the printing roller has a hole for mounting a printing machine on the end face as shown in FIG. 4, and a key groove 42 for stopping rotation is formed in a part of the hole.

FIG. 3 is a cross-sectional view of the chuck portion 6 in this embodiment. The chuck of the work is performed by inserting the tip of the chuck portion 6 into the mounting hole of the work 1.
As the shape of the chuck portion 6, the cylindrical shape shown in FIG. 3A and the conical shape shown in FIG. 3B can be considered as examples. In any of the shapes, a through-hole is formed inside as a flow path for compressed air, so that the chuck portion 6 supplies compressed air into the work. The supplied air leaks from the mounting hole of the work 1 and the gap of the chuck component 6, so that the cleaning liquid is prevented from entering.

When the compressed air pump 4 shown in FIG. 2 is supplied with compressed air from the outside of the apparatus, it is replaced with an electromagnetic valve for opening / closing the air. Generally, a solenoid valve is often used.

In general, since the printing roller is repeatedly attached to and detached from the printing machine, the hole diameter of the mounting hole is not very accurate, and the ink after printing may be attached, but as described above. By inserting the tip of the chuck part into the mounting hole and sending compressed air into this chuck part,
The gap between the chuck and the mounting hole can be sealed by leaking compressed air, which eliminates the need for accurate positioning and replacement of parts due to variation in shape, and the gap between the chuck and the mounting hole. The sealing is made possible by the leak of compressed air, the control of the liquid upper surface level is not required, and it is simplified. Furthermore, since the roller can be embedded in the cleaning liquid, the entire surface of the roller end surface can be cleaned.

The operation of the ultrasonic cleaning machine having the above structure will be described below.

First, the work 1 is set at the setting position 15. Next, when the ultrasonic cleaner starts its operation, the work transfer cylinder 14 moves forward to move the work upper and lower parts 1
0 lowers the chuck portion 6 to the height of the work 1.

The chucking of the work 1 is performed by the cylinders 11 provided on both sides of the chuck portion, and the work 1 is conveyed to the tank (in the cleaning liquid) of the ultrasonic cleaning machine main body 3. Here, the compressed air pump 4 is operated before the work 1 enters the cleaning liquid.

When the work 1 reaches a fixed position, ultrasonic waves generated by the ultrasonic transducer 5 are applied to the work 1. At this time, the work cylinder 1 is horizontally swung by the rocking cylinder 13 so that the ultrasonic waves are uniformly applied to the entire surface of the work 1, and at the same time, the work 1 is rotated by rotating the chuck portion 6 by the work rotation motor 12. While doing the washing. When the cleaning is completed, the work is conveyed to the set position 15 and one cycle is completed.

[0032]

According to the present invention, the gap between the chuck portion and the mounting hole of the roller can be sealed by the leak of compressed air, so that the measure for preventing the cleaning liquid from entering the mounting hole of the roller becomes unnecessary. Therefore, it is possible to automate the setting of the rollers, which in turn makes it possible to fully automate the ultrasonic cleaning. Further, the liquid level control for the cleaning liquid of the roller is simplified, and the entire end surface of the roller can be cleaned.

[Brief description of drawings]

FIG. 1 shows a block diagram of an embodiment of an ultrasonic cleaner according to the present invention.

FIG. 2 shows a front view and a side view of an embodiment of the ultrasonic cleaner according to the present invention.

FIG. 3 is a cross-sectional view used to explain the operation of the chuck portion according to the embodiment of the present invention.

FIG. 4 shows a conventionally used printing roller.

FIG. 5 shows a conventional ultrasonic cleaner.

[Explanation of Codes] 1 Work 2 Work Transfer Device 3 Ultrasonic Cleaner Main Unit 4 Compressed Air Pump 5 Ultrasonic Transducer 6 Chuck Part 7 Main Control Unit 8 Work Transfer Device 9 Cleaning Machine Control Unit 10 Work Up / Down Part 11 Work Transfer Cylinder 12 Work rotation motor 13 Swing cylinder 14 Work transfer cylinder 40 Roller 41 Stamp surface 42 Key groove 43 Ultrasonic cleaner 44 Support roller 45 Ultrasonic transducer

Claims (1)

[Claims] 1. An ultrasonic cleaning machine comprising a cleaning tank for cleaning a hollow cylindrical object to be cleaned, comprising: compressed air supply means for supplying compressed air; and an end of the object to be cleaned. Holding means for holding compressed air supplied from the compressed air supply means into the interior of the object to be cleaned from the end of the object to be cleaned, and the object to be cleaned held by the holding means to the cleaning tank. An ultrasonic cleaning machine comprising: a conveying unit that conveys an object to be cleaned and swings the object to be cleaned during cleaning; and a rotating unit that rotates the object to be cleaned held by the holding unit.