DE29520375U1 - Device for optional employment of additional devices - Google Patents

Description

Facility for optional activation of additional equipment

The invention relates to a device for selectively connecting additional devices, in particular dryers and devices for cleaning the printing cylinder and the printing material, to the printing cylinder of a sheet-fed printing press.

In sheet-fed printing machines, it is known to assign a device for cleaning the surface of the printing cylinder to each printing cylinder of the individual printing units and, if necessary, to place this device against the printing cylinder during a printing interruption. Depending on the space available, the device for cleaning the surface of the printing cylinder is arranged before the printing zone, i.e. the contact zone between the blanket cylinder and the printing cylinder, or after it. It is also known to assign a dryer to each printing cylinder for intermediate drying, which is arranged after the printing zone. It is also known to arrange a device for removing dirt from the printing material being processed in the first printing unit before the printing zone.

The disadvantage is that the additional devices severely restrict the already limited installation space available before or after the printing zone in the area of the printing cylinder, or the existing installation space is not sufficient to be able to install the technologically required additional devices next to each other.

The object of the invention is to create a device that can be implemented using simple means and that makes it possible to easily assign the technologically required additional devices to the printing cylinder despite the limited available installation space.

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According to the invention, the object is achieved by the first claim.

The advantages achieved with the invention lie in particular in the fact that despite the limited installation space available in a printing unit in the 7 o'clock cylinder position in front of the blanket cylinder or in a printing unit in the 5 o'clock cylinder position after the blanket cylinder, at least two additional devices can be used in these areas without adversely affecting their function or the operation of the printing machine.

The invention will be explained in more detail using an exemplary embodiment. The drawings show

Fig. 1 shows a schematic representation of a first printing unit in 7 o’clock cylinder position,

Fig. 2 shows a schematic representation of a first printing unit in the 5 o'clock cylinder position.

Figure 1 shows a printing unit in the 7 o'clock cylinder position, consisting of a printing cylinder 1, a blanket cylinder 2 and a plate cylinder 3. A feed drum 4 is arranged upstream of the printing cylinder 1 and a transfer drum 5 is arranged downstream. In the area between the feed drum 4 and the blanket cylinder 2, a device 6 for cleaning the surface of the printing cylinder 1 and a device 7 for cleaning the printing material are provided. The devices 6, 7 are known per se, with the device 7 for cleaning the printing material being designed as a brush roller provided with a suction device, while the device 6 for cleaning the surface of the printing cylinder 1 is designed as a cloth, roller or brush type. The device

The devices 6, 7 can be moved alternately into a parking or operating position as required. In Figure 1, the device 7 for cleaning the printing material is shown in the working position and the device 6 for cleaning the surface of the printing cylinder 1 is shown in the parking position. The device 7 is, for example, mounted on both sides in bearing levers 9 that can be pivoted about a frame point and can be moved from the working position shown in Figure 1 to a parking position away from the printing cylinder 1 by adjusting elements 10 acting on the bearing levers 7. The device 6 for cleaning the surface of the printing cylinder 1 is mounted on both sides in guides 11 fixed to the frame and can be pushed from the parking position shown in Figure 1 to the working position located on the printing cylinder 1 by adjusting elements 12 acting on the device 6.

The control elements 10 and 12 are linked to one another in such a way that either the device 6 for cleaning the surface of the printing cylinder 1 can be moved to the working position and the device 7 for cleaning the printing material can be moved to the parking position or the device 7 can be moved to the working position and the device 6 to the parking position. It is also possible to control the control elements 10, 12 in such a way that the devices 6 and 7 are stationed in the parking position at the same time. This is necessary, for example, if the use of the device 7 for cleaning the printing material is not required during continuous printing.

Figure 2 shows a printing unit in the 5 o'clock cylinder position, which consists of a printing cylinder 1, a blanket cylinder 2, a plate cylinder 3, a feed drum 4 and a transfer cylinder 5. In the area between the blanket cylinder 2 and the transfer cylinder 5, a device 6 for cleaning the surface of the printing cylinder 1 and a dryer 8 are provided.

The device 6 is shown in the parking position and the dryer 8 in the working position. The device 6 is guided in guides 11 in the same way as in Figure 1 and can be moved from the parking position to the working position by adjusting elements 12, while the dryer 8 is arranged in bearing levers 14 and can be pivoted from the working position to the parking position by adjusting elements 13 acting on them. The adjusting elements 12, 13 are controlled accordingly so that the device 6 or the dryer 8 can be alternately positioned on the printing cylinder 1 or stationed together in the parking position.

List of reference symbols used

1 pressure cylinder

2 rubber cylinders

3 plate cylinders

4 Feed drum

5 transfer cylinders

6 Cleaning device

7 Device for removing dirt

8 dryers

9 Bearing lever

10 Actuator

11 Leadership

12 Actuator

13 Actuator

14 bearing lever

Claims (4)

Protection claims 1. Device for the optional connection of additional devices, in particular dryers and devices for cleaning the printing cylinder and devices for removing dirt from the printing material, to the printing cylinder, characterized in that the device (7) for removing dirt from the printing material and the device (6) for cleaning the printing cylinder (1) or a dryer (8) and the device (6) for cleaning the printing cylinder (1) are coupled to one another in such a way that the device (7) for removing dirt from the printing material or the device (6) for cleaning the printing cylinder (1) or the dryer (8) or the device (6) for cleaning the printing cylinder (1) can be attached to the printing cylinder (1). 2. Device according to claim 1, characterized in that adjusting elements (13, 10, 12) are provided for switching on the dryer (8) and the devices (6, 7). 3. Device according to claim 1 and 2, characterized in that the adjusting elements (13) assigned to the dryer (8) and the adjusting elements (12) assigned to the device (6) as well as the adjusting elements (10) assigned to the device (7) and the adjusting elements (12) assigned to the device (6) are connected in terms of control technology in such a way that the dryer (8) or the device (6) or the device (6) or the device (7) can be automatically adjusted to the printing cylinder (1). 4. Device according to claim 1, 2 and 3, characterized in that the actuating elements (12, 13) and the adjusting elements (10, 12) are connected in a control-technical manner such that the dryer (8) and the device (6) or the device (6) and the device (7) can be locked together in a parking position away from the surface of the printing cylinder (1).