DE2264119A1 - PRINTING MACHINE INK UNIT - Google Patents

Description

Patent Attorneys 89 Augsburg, December 23, 1972

DR. WERNER KRUSE? Α3 £ ^Λ HD rMCTED I AIICD - Deutsche Bank Augsburg0637827 UK. UICICK LA UCK Stadtsparkasse Augsburg 0711671 Postal check account ι Munich 1152 86

ALBERT-PRANKENTHAL AKTIENGESELLSCHAPT, 671 Prankenthal Printing machine inking

The invention relates to a printing machine inking unit which is independent of one another with respect to the ductor roller ahtxxk XKXXKkxsricsxL adjustable ink knife sections.

Such inking units have compared to those with Farbines serbänder equipped, in which on an adjustment of a zone screw due to the elasticity of the knife band always a larger knife band area responds, the advantage that the ink film thickness to be transferred is regulated in an exact zone-by-zone setting can be.

The previously known versions of this type, however, tend to stick by the usual letterpress or Offset colors. This not only happens between the individual pieces of knife, but often also between the movable knife pieces and the fixed bracket. The consequence of this is that one is required If a knife section is to be corrected, it is stuck and cannot be moved · Will then readjusted once more, when the bond is finally released, there is a lot of too much strong adjustment of the knife, which is undesirable and makes a painful adjustment illusory. That Operating personnel is thus forced to repeatedly perform extensive cleaning work for the knife and to make its holder, which nevertheless does not exclude sticking with certainty can be.

The object of the invention is to create an inking unit using simple means to avoid these disadvantages, in which the risk of sticking or penetration of paint is excluded with certainty, so that the individual knife sections can be easily and sensitively adjusted. 409827/0162

The solution to this problem is characterized according to the invention by one of the ink knife edge to Over the depth of the separation points of the individual ink knife sections reaching elastic sheathing of the entire ■ all color knife sections.

In the invention, the separating points of the elastic sheath filled. These filling points are not subject to any additional pressure and are experienced therefore no higher wear than the ink knife itself «They are therefore always in contact with the ductor roller and avoid any inadvertent supply of paint. This way there is nowhere paint between the knife sections penetration; this removes any basis for the formation of adhesions. On the other hand, lets the sheathing due to its elasticity any sensitive adjustment of a knife section to the one lying next to it.

A preferred embodiment of the invention is that the color knife section / Besxana part of a common color knife body are provided in whose work area slot-shaped separation points are. This results in an easy-to-use and stable attachment of the ink knife body and easy attachment the casing, the front and back of which are formed at the slit-shaped separating points Bridges are interconnected.

In a further development of the invention it is proposed that the elastic sheathing be part of a body is, which has two superimposed, interconnected longitudinal chambers, of which the next the upper chamber lying next to the paint knife the wiping one Receives swirls of paint and the lower chamber is connected to the paint supply. This continuation of the elastic Sheathing in an apron also protects the adjustment elements from paint splashes and thus from sticking and Defamations. The apron body runs out into a drip edge at the bottom, in order to keep it calm and controlled To ensure paint reflow,

An embodiment of the invention is shown in Drawings shown schematically. It shows Pig · 1 a cross section through an inking unit with a pump, ■ ·

Pig. 2 a cross section through an inking unit with leek coloring, '.

Fig. 3 is a view of the color knife of Fig. 2 in Direction of arrow A of Figure 4,

Fig. 4 shows a cross section through the color knife in plane B-B of Fig. 5,

FIG. 5 shows a view of the ink knife in direction C of FIG.

From the inking unit are the ductor roller 1, the lick roller 2 and the inking roller 3 are shown, with which further inking rollers, not shown, are in contact stand. The ductor roller 1 is arranged in an ink fountain 4 and takes over the ink from a pump 5 via a pipe 6 according to FIG. 1 or directly from the paint box 4 according to Fig.2 «To the lick roller 2 exactly To feed metered ink film thickness, an adjustable ink knife 7 is arranged on the ductor roller 1 «The Knife body 7, which is connected in its upper region, is fastened to a rail 11 by means of clamping strips 12. In its lower area 8 - the working area of the knife - the knife body is divided into individual sections 9 - see Fig. 3 and 5 - through slot-shaped separation points subdivided Each individual section 9 carries an arm 13 firmly connected with an adjusting screw 14 in contact on an eccentric 15 with handle 16 on which the desired Adjustment of the pivot position of the ink knife section 9 can be made. Instead, of course, you can any other form of adjustment means can be used, ζ · Β. also as remote adjustment.

The working area 8 of the ink knife 7 is in the entirety of all ink knife sections 9 with one elastic sheath 17, 17 'provided, which also fills the slot-shaped separation points 10 and there connecting webs between both sides of the knife sections 9 located sheathing parts forms. The sheath

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extends from the working edge 18 of the knife to over the slot depth of the separating points 10o

The casing 17 is extended to form an apron-shaped port set, in which, according to FIG. 1, two superimposed, interconnected longitudinal chambers 19 and 20 are provided, of which the lift the knife area 8 lying upper chamber 19 receives the stripping swirl of paint and through at certain intervals Provided channels 21 returns to the paint fountain 4 and the lower chamber 20 with the paint supply 6 one Paint pump 5 is connected.

In the case of the immersion coloring shown in FIG. 2, shields the skirt body of the elastic sheath 17 'also has the adjusting means 15-16 with respect to the wiping one The swirl of paint and leads it back to the paint fountain 4 via the drip edge 22.

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Claims (4)

Patent claims 1.} Printing machine inking unit opposite the ductor roller independently of each other gbxxxk SKXxgünwxkcx adjustable Ink knife sections, characterized by one from the ink knife edge (18) to over the depth of the separation points (10) the individual ink knife sections (9) reaching elastic sheath (17 »17 ') of the whole all color knife sections (9) 2. Printing machine inking unit according to claim 1, characterized characterized in that the ink knife sections (9) pivot component of a common color knife body (7) are, in whose working area (8) slot-shaped Separation points (10) are provided. 3 «printing machine: ^ Abbwerk according to claim 1 or 2, characterized in that the elastic sheath (17) is part of a body which is two on top of each other lying, interconnected longitudinal chambers (19 »20) has, of which the upper chamber (19) lying next to the ink knife sections (9) the stripping color vortex receives and the lower chamber (20) is connected to the paint supply (6). 4. Printing machine inking unit according to claim 2 or 3 »characterized in that. <Let the elastic casing is formed by a body (17 ') which runs out at its lower part into a drip edge (22). /. η ο ο o 7 / meo E e r a l e e s