DD226148A3 - COLOR WORK FOR ROTATION PRINTING MACHINES - Google Patents

Abstract

The invention relates to an inking unit for rotary printing machines for high or offset printing. It pursues the goal of a cost-effective production of different inking types. The object is to create inking units containing two application rollers associated with a distribution cylinder and a further distribution cylinder upstream of the delivery cylinder for both newspaper and commercial printing with a high proportion of standardized components. Also, the technical complexity and the adjustment of the ink rollers should be low. This is achieved by the further distribution cylinder is either directly via a transfer roller with the other distribution cylinder or by two transfer rollers with one of the two application rollers in combination, these two transfer rollers store on both sides in a pivotable about the distribution cylinder bearing plate and the roll neck of the applicator roll and the cooperating with their transfer roller are connected on both sides with a coupling. Fig. 2

Description

jf

VE8 Combine Polygraph '

"Werner Lamberz" Leipzig __ _{s Ma} / _r

P 155

Inking unit for rotary printing machines Field of application of the invention:

The invention relates to an inking unit for rotary printing presses for high or offset printing.

Characteristic of the known technical solutions:

Ink units for rotary printing machines for high or off, set pressure are known in a variety of variants. Depending on the desired quality of the coloring of the printing form, the inking units differ, inter alia, in the number and arrangement of the inking rollers. Coloring units for newspaper printing presses require fewer color separations and trimmings than inking units for commercial printing presses. Correspondingly, the types of inking machines produced for the various fields of application differ with minimal effort. The production of different inking types is costly due to the large variety of items in small quantities.

Object of the invention:

The invention pursues the goal of cost-effective production of the various inking types.

Essence of the invention:

The invention is based on the object, inking units for rotary printing machines with two on tragwalzeη, which are in communication with a distribution cylinder and are pivotable about this, as well as a the Reibzylinder in FarbfluBrichtung upstream further Reibzylinder both for newspaper and commercial printing with a high proportion ' In addition, the inking units should be characterized by low technical complexity and require little adjustment work of the inking rollers.

According to the invention, the object is achieved in that the further distribution cylinder is either directly via a transfer roller with the other distribution cylinder or by means of two Cbertragungswalzen with one of the two contract • rollers in combination, these two Qoertragungswalzen on both sides in each one around the distribution cylinder Store swivel bearing plate and the roll neck of the application rollers and the r.hr-cooperating transfer roller are connected on both sides with a'Koppel. As a result, the inking units for newspaper and commercial printing have the same basic structure and have predominantly the same components. Silk inking machines are thus cost-effective with low variety of individual parts in economical lot sizes fer.tig'oar. The inking unit for newspaper printing is also easy to retrofit to an inking unit for commercial printing expandable, thanks to the coupling connection between order and transfer roller, the setting of ', Valzenpaarung with an adjustment of the applicator roll to the forming or distribution cylinder need not be changed. Also unnecessary is a Abstellorgan for the transfer roller bearing end shields, and it is required for a washing of the inking contact this roller with the parked from the forme cylinder

Application roller reliably guaranteed. Embodiment:

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing shows schematically:

Fig. 1: an inking unit for newspaper printing in the Seitenansieht

Fig. 2: the inking unit of FIG. 1, retrofitted for commercial printing

3: the detail Z of Figure 2

The inking unit shown in Figure 1 includes two applicator rollers 1; 2, which are arranged on the plate cylinder 3, they are also on the distribution cylinder 4 and are in pivoting levers 5; S pivoted about this. The Rsibzylinder 4 is preceded by another distribution cylinder 7. Both distribution cylinder 4; 7 are connected by means of a transfer roller 8 in connection. It is received in pivotally mounted on the frame bearing plates 9, Oie connection between the ductor 10 and the distribution cylinder 7 via the groove roller 11 and a transfer roller 12. Both rollers 11; 12 are mounted on both sides in a respective pivotable about the distribution cylinder 7 bearing plate 13. Finally, the pivot lever S sine accommodate on the carrier roll 2 seated rider roller 14th

The pivot lever 5; δ and the end plates 13 are arranged in Gestali pneumatic working cylinders 15; 15; 17 in conjunction with gestftfasten, one-so adjustable stops 13; 19; 20 and not shown

Return springs actuated. The adjustment of the inking rollers to each other or to the friction cylinders is done by moving their roll neck in the slots of the pivot lever 5 receiving them; Instead, the recording and adjustment of the ink rollers can also be done by means of conventional VValzenschlösser.

The inking unit shown in Figure 1 is suitable for newspaper printing. It is retrofittable by the subsequent installation of only a few components to the .Fraft shown in Figure 2 for commercial printing in the printing or can be mounted as such at the printing press manufacturer. In detail, the bearing plates 9 are removed with the Ooertragungswalze.8 and for two pivotable about the distribution cylinder 7 end shields 21 are used, which carry the Obertragungswalzen 8 and 22. The end plates 21 are designed with a split hub and so easily mounted on the pin of the distribution cylinder 7. By means of two coupling 23, the vv'alenenzapfen 24; 25 of the associated applicator roller 1 and the transfer roller 22 is connected (Figure 3). The setting of the valve is carried out with the pressure screw 25. This roller play does not change during an adjustment of the applicator roller 1 to the flatten cylinder 3 or the friction cylinder 4. The transfer roller 3 is with the distribution cylinder 7 and the Cb'ert ragungswalze 22 in touch, it is mounted in pivotally mounted on the end plates 21 bearing plates 27.

In the exemplary embodiment, the inking units are provided for high-pressure machines. Sia can also be used for Gffsetdruckmaschinen, coupled with a dampening unit. Also, the object of the invention It Farbwerke in number and arrangement represents inking rollers between the distribution cylinder 7 and the fountain roller 10 can be varied using,

Claims (2)

Invention claim: Inking unit for rotary printing presses with two applicator rollers, which are connected to a distribution cylinder and are pivotable about this, and a further distribution cylinder upstream of the distribution cylinder in FarbfluSrichtung, characterized in that the further distribution cylinder (7) either directly via a transfer roller (3) with the other distributor cylinder (4) or by means of two transfer carriages (3; 22) with one of the two applicator rollers (1) is in communication, these two transfer rollers (8; 22) on both sides in a respective about the distribution cylinder (7) pivotable bearing plate (21) store and the roll necks (24; 25) der.Auftragwalze. (1) and the cooperating with her transfer roller (22) on both sides with a coupling (23) are connected. For this 2 sheets drawing Documents considered:
DE-PS 2249920 (B 41 F, 31/30)