SU1359159A1 - Inking unit for rotary printing presses - Google Patents

Abstract

Inking means for a rotary printing machine comprises two inking rollers (1, 2), which are connected with a first ink distribution cylinder (4) and are pivotable about this and a second ink distribution cylinder (7) mounted upstream of the first cylinder (4) in ink flow direction. The second cylinder (7) is connected selectably either directly by way of one transfer roller (8) with the first cylinder (4) (as shown in Figure 1) or by means of two transfer rollers (8, 22) with one (1) of the two inking rollers (as shown in Figure 2). These two transfer rollers (8, 22) are mounted at their ends in bearing plates (21), which are pivotable about the second cylinder (7), and the axle spigots (24, 25) of that one of the inking rollers and the transfer roller (22) co-operating therewith are connected at both ends by respective couplers (23). <IMAGE>

Description

This invention relates to rotary printing cups for high or offset printing.

The colorful devices of rotational standard printing presses for letterpress or offset printing are known in various ways, for example, the GDR patent Nb 111847, cl. B 41 F 31/00, 1975). Depending on the rolling of the printing form, the ink-drawing apparatuses differ from one another in the number and arrangement of the paint rollers. Colorful newspaper printing machines require splitting and less ink than smaller ink incident print machines. In accordance with this, the types of paint apparatuses made with minimal costs for different application areas are also different.

The price of the invention is the cost-effective production of various paint machines.

The invention is based on the task of producing color devices with a large proportion of standardized units for rotary printing machines for both newspaper and incident printing, with two rolling rollers, connected to the roll cylinder and can be rotated around the billet, as well as an additional roll cylinder, placed in front of the first cylinder in the direction of flow of paint. In addition, these colorful agtarats should be distinguished by low technological costs and little adjustment work on the paint rollers.

To accomplish the task, the pre-roll cylinder is connected to the ground drive through the transfer roller or by means of two transfer rolls, installed on both sides in one supporting shield rotated around the roll cylinder, and the rolls of rolls and working together. They transfer the roller on both sides are connected with one paid. Thus, colorful devices for newspaper and accidental nepati and have the same basic design and mostly the same 14 parts, both jrnx and an; iai) a I orj can be produced by economically viable batches with a small variety of materials. 1 details In addition, the colorful newsprint printer is rebuilt into a colorful incident printing machine through additional equipment. Due to the nstunny connection between the knurled and non-depleting rollers, there is no need to change the adjustment of this pair of rollers when moving the knurled 1-o roller in relation to the plate or roll cylinder, and the shut-off member for the support roller supporting plates is unnecessary, and the edge necessary for cleaning 5

juicy apparatus reliable contact of this roller with a rolling roller, remote from the plate cylinder.

FIG. 1 is a schematic side view of a colorful newspaper printing apparatus; in fig. 2 - the same, re-equipped for the incidental printing; in fig. 3, node I in FIG. 2

The inking unit contains two rolling rollers 1 and 2, which are located on

0 cylinder 3, adjacent to roll cylinder 4 and mounted on the swivel arms 5, 6 with the possibility of rotation around the latter. Another roll cylinder 7 is placed in front of the rolling cylinder 4. Both rolling cylinders (4, 7) are connected to one another by means of the transfer roller 8. The latter is fixed in the support plates 9 fixed to the frame with the possibility of a knob. The connection between ductor 10 and rolling cylinder 7 is carried out through reef 11 and transfer rollers 12. Both rollers 11, 12 are supported from two sides on a single turn around the supporting shield 13, which is around the rolling cylinder 7. In addition, on the pivoting levers 6, a load-bearing scroll box mounted on the rolling roller 2 is installed. wk 14.

The pivot arms 5, 6 and also the support pkhits 13 are driven by pneumatic working cylinders 15, 16, 17 located on the frame, in combination with adjustable supports 18, 19, 20 firmly fixed on the frame and return springs (not shown). . Installing paint rollers in relation to one another or to roll cylinders does not accommodate the pivots in the slots of the securing pivoting levers 5, 6, base plates 9, or bearing pads 13. You can also mount and move the paint rollers.

Depicted in FIG. 1 colorful annarat is for newspaper printing.

0 It can be retooled to the one shown in FIG. 2 an incident printing machine by additionally inserting some parts (in a printing house or. Mount it at the factory of the print masin). In particular, the Ogur5 plates 9 are removed from the transfer roller, m 8, and instead of them two support pits 21 are inserted with the possibility of rotation around the roll cylinder 7 and the carrier transfer rollers 8 and 22. The support panels 21, made with a detachable sleeve, mount

 on the axles of the rolling cylinder 7. Through two connecting rods 23, pins 24, 25 of knurling 1 and transverse 22 rollers are interconnected (Fig. 3). The roller clearance is adjusted

j with a pressure screw 26. This gap of the rollers does not change when the ia-roll roller 1 is moved but relative to the forme 3 or 4 different cylinders. The transfer roller 8 is in contact with the rolling cylinder 7, the transfer roller 22 and rests on the support plates 27, which can be rotated on the support bars, ita 21.

In an embodiment, ink machines for letterpress machines are considered. They can also be used in combination with a wetting machine for offset printing machines, varying the number and location of the colorful rollers between the roll cylinder 7 and the ductor 10.

Claims (1)

Invention Formula An inking machine for rotary printing presses containing two knurling rollers connected to the main roll an additional cylinder installed in front of the main cylinder in directional G: supplying paint and associated with it through a transfer roller, characterized in that, in order to ensure that the apparatus is rearranged to another type of printing, it contains a second transfer roller - 22, two support plates 21, in KOTOiM ix the first and BTOpoii transfer rollers are mounted, and two centers 23, with which the knurling roller is connected with the second transfer roller 22, while the support boards 21 mustache With the turn of the turn it is necessary to rotate around the additional cylinder of a cylinder. L /five / 7 7 cf3ue.3