DE277704C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 8 c. GROUP

MASCHINENFABRIK MAX KROENERT G. m. B. H. in ALTONA-OTTENSEN.

Method and device for adjusting the pattern rolls of machines for printing paper and fabric webs.

Patented in the German Empire on June 6, 1912.

The adjustment of the pattern rollers to one another was possible with the previous printing machines with rotating rollers only by the so-called located on the sample roller spindles Regulators are accomplished. This setting of the rollers was, primarily with multi-colored patterns, quite boring, and such patterns could only be from experienced, efficient printers.

In the present invention, the pattern setting for the printer hardly comes in question and therefore does not offer him the operation of the multicolor printing machines Difficulties and the manufacturers are no longer dependent on specialists.

The known regulator is no longer used for setting in the present invention of the pattern is used, but only at the end to compensate for any form engraver mistake made.

In the drawing, Figs. 1 to 4 are the schematic representations of a printing machine with, for example, four pattern rollers.

Fig. 5 is a top view of the same.

The per se known regulator is denoted by a. The central wheel of the machine is designated by b , which has exactly the same diameter in the pitch circle as the impression cylinder c. The rim of the central wheel b is provided with as many holes (I, II, III, IV) as there are colors or pattern rollers (e ¹ , e ² , e ^z , e ⁴ ). The condition is that

the distance of these holes (I, II, III, IV) from one another, measured at an angle, corresponds to the distance of the printing rollers from one another. It must ζ. B. be the angle a = β, γ = S and ε = φ. A bore d (FIG. 5) is provided at any fixed point on the machine frame M , the width of which corresponds to that of each hole I, II, III, IV. With the help of a mandrel f which is to be inserted through the holes of the central wheel b and into the bore d, the central wheel b is fixed in four positions, corresponding to the four pattern rollers. One of the bearings g of the pattern roller shaft h is provided with a bore i for receiving a dome k. The face of each pattern roller e facing this is provided with a radially directed rib I at a certain point, the zero point. First, the central gear is fixed with point I in hole d. Then the pattern roller e ^{1 is} rotated with its rib I against the mandrel k inserted into one of its bearings and the shaft h of the pattern roller e ^{1 is then} fixed. For this purpose, the same is provided at its end with a cone m , which is received in the conical bore μ of the shaft part A ¹ and is tightened by a union nut 0. In such a way, the first pattern roller β ^{1 is} set (Fig. 1). The mandrel k is now pulled out of the bearing g of the set pattern roller β ^{1 and}

Claims (3)

inserted into the hole of the bearing of the following pattern roller e ^2. The mandrel f is also removed from d and now the central wheel b is rotated so much that the following hole II is in line with the hole d in the fixed frame and the central wheel b can be determined in this position by means of the dome f . The second pattern roll e ² is now just like the first pattern roll with its rib / ίο rotated against the stop k and then determined in the same way as this (Fig. 2). The procedure is the same for each subsequent pattern roller (cf. FIGS. 3 and 4). The ribs I finally assume the positions shown in FIG. 4, which are such that the ribs I of the pattern rollers β ¹ , β ² , e ³ , e *, regardless of their diameter, one after the other while the machine is running fall in the direction of those radii of the central wheel on which the holes I, II, III, IV of the central wheel δ are located. In the event of inaccuracies in a pattern roller, a layperson can now use the pattern after the all pattern rollers have been turned on and detected in the manner described and readjust easily with the help of the regulator α. Such was not the case in the past Case. It was not, rarely, that the pressure rollers were misplaced by half a turn and were only allowed to pass after hours of rules. P Λ T E NT - A N S Γ R Ü C H E: i. Method for setting the pattern rollers of machines for printing paper and fabric webs, characterized in that the central wheel (V) of the machine with certain points (I, II, III or IV), the angular spacing of which corresponds to the angular spacing of the printing rollers, one after the other of each pattern roller (e ¹ , e ^% , e ³ , e ^l ) are determined, the pattern rollers are rotated against stops (k) at these points, and then fixed on their shafts (k, h ¹ ). 2. Device on a roller printing machine for performing the method according to claim 1, characterized in that in the rim of the central wheel (δ) as many holes are drilled as there are pattern rollers (β ¹ , 6 ^% , e ³ , e ^l ) , the distance of these holes from each other, measured at an angle, corresponds to the distance of the pattern rollers from each other, a hole (d) is provided at any fixed point on the machine frame (M ") for fixing the central wheel (δ) by means of a dome (f) and a the bearing (g) of the pattern roller shafts (A, h ¹ ) is provided with a bore (i) for receiving a mandrel (k), against which the pattern rollers with a rib (I) located on them are rotated in order to be subsequently determined . 3. Device according to claim 2, characterized in that each pattern roller shaft is in two parts and one part (K) can be coupled to the other (h ¹ ) after the pattern rollers have been rotated with their ribs (I) against the mandrel (k) are. 1 sheet of drawings