JPH0739177B2 - Cylinder or roller cleaning device for printing machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cylinder or rotor cleaning device,
Especially, it is suitable to reduce the frequency of cleaning cloth replenishment by properly mounting different cleaning cloths on the cross unit depending on the cylinder or roller to be cleaned and increasing the amount of cleaning cloth that can be stored in the cleaning cloth supply means. Cylinder or roller cleaning device for various printing machines.

[Conventional technology]

Automatic cleaning device for cleaning the surface of a cylinder or roller by pressing the cleaning cloth, which is fed from the cleaning cloth supply roller and suspended between the cloth supply roll and the cloth winding roll, against the cylinder or roller of the printing machine by the pressing means. Various cleaning devices have been proposed and put into practical use.

For example, Japanese Patent Publication No. 56-3708 and Japanese Patent Publication No. 56-370 9
Also, there is Japanese Patent Publication No. 2-33306, and an example of the structure will be described with reference to FIG.

In FIG. 6, 50 is a blanket cylinder which is one of the printing machine cylinders, 60 is a cross unit of an automatic cleaning device, 61 is a cleaning cloth supply roll, 63 is a cleaning cloth take-up roll, and 64 is a cleaning cloth. . The cleaning cloth 64 is suspended between the two rolls 61 and 63 via the pressing pad 62. Pressure pad 62
Is pressed against or released from the surface 51 of the blanket cylinder by an actuator (not shown). During normal printing, the pressing pad 62 is separated from the surface 51 of the blanket cylinder.

Next, the cleaning operation will be described.

During cleaning, the blanket cylinder 50 rotates in the direction of arrow 52 at a slow moving speed (speed lower than that during normal printing). The pressing pad 62 presses the cleaning cloth 64 (which is pressed in the direction of arrow a) against the surface 51 of the blanket cylinder 50 in response to the cleaning start signal.
The cleaning cloth 64 is wetted with a solvent by a spray device (not shown), and is continuously or intermittently fed by the winding roll 63 in the direction of the arrow 65, and the surface of the blanket cylinder 50.
Clean the dirt on 51. When the surface 51 of the blanket cylinder 50 becomes clean after a few tens of seconds to several minutes, the pressing pad 62 moves in the direction of arrow B, the cleaning cloth 64 separates from the blanket cylinder 50, and the take-up roll 63 feeds. Also stops and the cleaning work ends.

[Problems to be Solved by the Invention]

As an automatic cleaning device for a blanket cylinder, an automatic cleaning device for a printing machine having the above-mentioned configuration was developed to develop a suitable cleaning cloth and a cleaning liquid for each cylinder, so that other cylinders or rollers of the printing machine, that is, pressure Body ink roller,
It has also come to be used for cleaning guide rollers. In this case, the cleaning cloth used by the cylinder or roller to be cleaned is different, but since the cleaning cloth supply roll and the take-up roll have the same shape and structure, misuse of the cleaning cloth often occurs. , Is in trouble. Further, the cleaning cloth used in the ink supply roller cleaning device (Japanese Patent Application No. 1-36016) of the printing machine according to the invention of the same applicant is the cleaning cloth (0.2 mm) used in another cylinder automatic cleaning device. Since it is much thicker (about 2 to 3 mm), the conventional roll-type cleaning cloth supply method reduces the amount of cleaning cloth to be held in the supply section, and it is necessary to replenish the cleaning cloth frequently and the burden on the work Has become.

An object of the present invention is to provide a cylinder or roller cleaning device for a printing machine, which can quickly and accurately supply a dedicated cleaning cloth to an automatic cleaning device for cylinders or rollers different from each other and can be supplied less frequently. Is to provide.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the invention of claim 1 is a cylinder or a roller of a printing machine, which is unwound from a cleaning cloth supply means and is suspended between a winding means for winding the cloth and a pressing means. In a cylinder or roller cleaning device of a printing machine for cleaning the surface of the cylinder or roller by pressing against the outer periphery of the cloth, the cleaning cloth supply means stores a cross cassette in which the cleaning cloth is stored, and a cassette storage for storing the cross cassette. A cross unit serving as the pressing means having a portion, the cross cassette is provided with engaging recesses at different positions depending on the object to be cleaned, while the cassette storing portion of the cross unit is fitted with the engaging recess of the cross cassette. The configuration is such that an engaging convex portion is provided.

According to the invention of claim 2, in the invention of claim 1, the cloth is folded and stored in a cloth cassette.

According to a third aspect of the present invention, in the first aspect of the present invention, the cross unit main portion is provided with a brake that applies appropriate tension to the cross.

According to a fourth aspect of the present invention, in the first aspect of the present invention, means for detecting attachment of the cross cassette is provided in the cross unit main portion and the cross cassette engaged with the cross unit main portion, and the cleaning operation is prohibited by the detection signal. The interlock is unlocked.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a cross guide portion is provided in the cross unit main portion, and a blocking body that protrudes and retracts in the guide portion is provided. A means for permitting passage of the cross is provided.

[Work]

When replacing the cross cassette, when the engaging concave part of the cross cassette is fitted to the engaging convex part of the cassette storage part and mounted, the class stored in this cross cassette is the cylinder or roller cleaning that is compatible with the device. Since it is for use, it is possible to prevent cleaning troubles due to an unsuitable cloth, and it is possible to clearly distinguish it from those of other cylinder cleaning devices and improve the efficiency of cleaning work.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. First
The figure shows a cross-section of a cross unit of a cylinder or roller cleaning device of a printing press.

The cross unit 1 includes a cross unit main portion 4 to which a crimping member 2 formed of an elastic body is attached at a front portion and a cassette storage portion 3 is provided at a back portion. Side plates 5 are attached to both sides of the cross unit main portion 4, and the side plates 5 are supported by an adapter plate 20 fixed to a frame 10 of the main body. Side plate supporting portions 21 are provided opposite to each other at both ends of the adapter plate, and a groove portion 22 for slidably supporting the side plate 5 is formed on an inner facing surface of the side plate supporting portion. Therefore, the cross unit main part 4 is driven by an actuator (not shown) to form a cylinder or a roller.
It moves back and forth in the direction of 100 (hereinafter referred to as "cylinder, etc."), that is, in the directions of arrows a and b shown in FIG. The cassette housing portion 3 has a rectangular cross section and has a cassette insertion opening opened to the back side, and an engagement convex portion 6 matching the engagement concave portion 32 of the cross cassette 30 having the width w on the upper surface of the cassette insertion opening side. Is provided.

Further, a cross supply port 7 is provided at a portion where the lower surface and the bottom surface of the cassette housing section intersect, and a guide section 8 for guiding the cross 40 drawn out from the cross supply port along the outer surface of the cross unit main portion is provided. ing. The guide 8 is provided with a brake 9 for preventing the loosened cloth from being loosened and being wound around the cylinder 100 or the like.
As shown in FIG. 1, the brake 9 is composed of a brake shoe that operates across the guide portion and this brake setting screw. For example, the brake 9 is arranged at two positions as shown in FIG. Incidentally, 11 is a clamp for pressing the cross cassette 30, and 14 is a cross feed roller.

As shown in FIGS. 3 and 4, the cross cassette 30 is formed in the same shape as the cross section of the cassette housing portion 3 of the main portion of the cross unit. The cross cassette 30 is folded inside the cassette, and the folds are laid sideways. Is stored, and is configured to be pulled out from the lowermost cross outlet 31 when the cross cassette is mounted.

Further, the cloth cassette is a cylinder or a roller other than the target cylinder, for example, a cleaning cloth (hereinafter referred to as other cloth) used for a cleaning device such as an impression cylinder, a blanket cylinder, and an ink supply roller is not accidentally used. As a safety means, an engagement recess 32 (see FIG. 3) is formed to match the engagement projection provided on the main portion of the cross unit. The width W of the engaging concave portion is slightly larger than the width w of the engaging convex portion.

As another safety means for preventing other cloths from being accidentally used, for example, as shown in FIG. 1, a switch for detecting the mounting of the cloth cassette 30 in the cassette housing portion 3.
It is also possible to provide 12 and to start the cleaning operation, for example, the sequence operation such as the supply of the cleaning liquid and the driving of the cross feed roller under the condition of the switch operation. Further, in order to prevent the cloth from being pulled out from the cross cassette, a blocking member that partially appears and disappears is provided in the guide portion 8, and a cleaning cross cassette (hereinafter, referred to as a dedicated cross cassette) such as a cylinder for the blocking body is attached. Thus, the cloth can be pulled out by immersing the cloth by a mechanical or electrical actuating mechanism, while it is possible to prevent the cloth from being pulled out in other cross cassettes because the blocking body remains exposed. Further, by combining the above-mentioned mechanisms, the function can be made more reliable, and the reliability of the device can be improved.

FIG. 5 shows another embodiment of the cross cassette.
The cloth is folded and stored in a cloth cassette in a vertical shape with the folds being located above and below. in this case,
A backup plate 35 is applied to the end of the cloth to facilitate the supply of the cloth, and the entire cloth folded by the spring 36 is pushed toward the cloth supply port.

As a means for detecting the remaining amount of cloth in the cloth cassette, as shown in FIG. 1, a marker 33 near the end of the cloth is used.
And the marker 33 is detected by a sensor (not shown) installed in the guide section 8, or the end of the cross or the marker is detected by the sensor 34 installed outside the guide section shown in FIG. Stop the device.

Further, in the first embodiment, the cloth 40 is configured to be pushed by the crimping member 2, but as in the second embodiment shown in FIG. 5, the cloth unit main portion itself (curved portion indicated by C) is used to push the cloth. It may be configured to be pushed.

Next, the operation of the above embodiment will be described. When the cleaning of the target cylinder or the like, for example, the ink supply roller is started, the actuator is actuated to move the main part of the cross unit in the direction of arrow A in FIG. Wipe off the ink softened by the solvent by pressing it against the surface of. At this time, as a method for softening the ink, either a method of directly applying a solvent to the roller surface or an indirect method of immersing it in a cloth and indirectly applying it is adopted. The cross feed is performed continuously or intermittently.

The cloth that has absorbed the ink is processed by a cloth processing unit (not shown) such as cutting and winding installed downstream of the cloth feed roller.

When there is no more cloth in the cross cassette, remove the clamp, remove the cross cassette from the main unit of the cross unit, and replace it with a new one. At that time, the engaging concave portion of the cross cassette is aligned with the engaging convex portion of the cross unit and is inserted into the cassette housing portion. When the cloth cassette is completely installed, the tip of the cloth, which comes out of the cloth outlet, goes out of the main portion of the cloth unit through the guide portion. The tip of this cloth is bitten by the cross feed roller through the pressure bonding member. After that, adjust the brake to give the cloth proper tension,
Restart washing.

Here, other cross cassettes that do not meet the specifications of the present system cannot be mounted in the cassette housing portion, and the troubles due to the above use can be prevented.

In this embodiment, the pair of engaging projections and the engaging recesses are used, but the present invention is not limited to this. For example, a plurality of sets may be provided, and at least one set may be provided in the cross unit main portion as an engaging convex portion and in the cross cassette as an engaging concave portion.

〔The invention's effect〕

As described above, according to the present invention, the cross cassette is provided with the engaging concave portion adapted for each cylinder or roller, and the engaging convex portion to be inserted into the engaging concave portion is provided inside the cassette accommodating portion of the cross unit main portion. It is possible to prevent troubles due to the use of cloth cassettes used in cylinder or roller cleaning devices other than those mentioned above, and the cloth can be pulled out correctly by mounting the engaging concave part and the engaging convex part together. And it will be quick.

Further, when the cloth cassette in which the cloth is folded and stored is used, the holding amount of the cloth increases and the replacement frequency can be reduced, so that the workability is improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a partial cross section of a cylinder or roller cleaning device of a printing machine according to the present invention, and FIG. 2 is FIG. 1A.
-A rear view taken along the line A, FIG. 3 is a sectional view taken along line BB of FIG. 2, FIG. 4 is a perspective view of a cross cassette, and FIG. 5 is a schematic view showing another embodiment of the present invention. FIG. 6 is a schematic diagram of an automatic cleaning device for a blanket cylinder. 1 ... Cross unit, 3 ... Cassette storage part, 4 ... Cross unit main part, 5 ... Side plate, 6 ... Engagement convex part, 8 ... Guide part, 9 ... Brake, 10 ... Book Machine frame, 12 …… Switch, 20 …… Adapter plate, 30 …… Cross cassette, 32 …… Engaging recess, 35 …… Backup plate, 36 …… Spring, 40 …… Cross, 100 …… Cylinder to be cleaned or roller.

Claims (5)

[Claims] 1. A cleaning cloth, which is unwound from a cleaning cloth supply means and suspended between a winding means for winding the cloth, is pressed against the outer circumference of a cylinder or roller of a printing machine by a pressing means, thereby In a cylinder of a printing machine or a roller cleaning device for cleaning a roller surface, the cleaning cloth supply means is a pressing means having a cloth cassette in which the cleaning cloth is stored and a cassette storage portion in which the cloth cassette is stored. The cross cassette is provided with engaging recesses at different positions depending on the cleaning target, while the cassette accommodating portion of the cross unit is provided with engaging protrusions that match the engaging recesses of the cross cassette. Characteristic cylinder or roller cleaning device for printing machine. 2. The cylinder or roller cleaning device for a printing press according to claim 1, wherein the cloth is folded and stored in a cloth cassette. 3. A cylinder or roller cleaning device for a printing machine according to claim 1, wherein a brake for applying an appropriate amount of adhesion to the cloth is provided in the main portion of the cloth unit. 4. A cross unit main body and a cross cassette engaged with the cross unit main portion are provided with means for detecting the mounting of the cross cassette, and the interlock for prohibiting the cleaning operation is released by the detection signal. A cylinder or roller cleaning device for a printing press according to claim 1. 5. A cross guide portion is provided in the main part of the crow's knit, and a blocking member is provided in the guide portion, and means is provided for allowing the blocking member to be retracted under the condition that the cross cassette is mounted to permit passage of the cloth. A cylinder or roller cleaning device for a printing press according to claim 1.