DE143996C

DE143996C -

Info

Publication number: DE143996C
Application number: DENDAT143996D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die vorliegende Tiegeldruckpresse zeichnet sich dadurch aus, daß der mit einer senkrecht liegenden Druckfläche versehene Tiegel feststeht und von einer selbsttätigen Bogenzuführvorrichtung umkreist wird, während das Fundament, um die Einfärbung durch die Walzen zu ermöglichen, von dem Tiegel so fortbewegt wird, daß die Druckform dem Tiegel parallel bleibt. Auf diese Weise wird eine äußerst kompakte Tiegeldruckpresse erzielt, deren wesentliche Bewegungen auf das geringste Maß beschränkt sind, wobei insbesondere auch noch der Vorteil eines ruhigen Ganges, selbst bei erhöhter Schnelligkeit des Druckes, sich einstellt.The present platen printing press is characterized in that the one with a vertical lying pressure surface provided crucible is fixed and by an automatic sheet feeder is encircled while the foundation in order to allow the coloring by the rollers of the crucible so is moved so that the printing form remains parallel to the crucible. That way will achieved an extremely compact platen press, the essential movements of which are based on the are limited to the smallest degree, with the particular advantage of a quiet Ganges, even with increased speed of pressure, adjusts itself.

In der Zeichnung ist Fig. 1 eine Seitenansicht der Gesamtmaschine, Fig. 2 eine Vorderansicht, Fig. 3 eine Hinteransicht, Fig. 4 eine Oberansicht, Fig. 5, 6, 7 und 8 die Darstellung von Einzelheiten, Fig. 9 ein Schema der wesentlichen Bewegungen der Presse.In the drawing, FIG. 1 is a side view of the entire machine, FIG. 2 is a Front view, FIG. 3 a rear view, FIG. 4 a top view, FIGS. 5, 6, 7 and 8 the Representation of details, FIG. 9 is a diagram of the essential movements of the Press.

Bei der Beschreibung sei von dem Schema der Fig. 9 ausgegangen. Es ist α der mit einer senkrecht liegenden Druckfläche versehene, feststehende Tiegel, b das Fundament; welches, um die Einfärbung durch die Walze zu ermöglichen, von dem Tiegel so fortbewegt wird, daß die Druckform dem Tiegel parallel bleibt.The description is based on the diagram in FIG. 9. It is α the fixed crucible provided with a vertical pressure surface, b the foundation; which, in order to enable the inking by the roller, is moved away from the crucible in such a way that the printing form remains parallel to the crucible.

Das Fundament bewegt sich also horizontal hin und her.So the foundation moves horizontally back and forth.

Die Einfärbung des Fundamentes durch die Walzen kann auf verschiedene Weise erfolgen, doch ist dafür Sorge zu tragen, daß der Antrieb des Farbwerkes durch die horizontale Verschiebung der Druckform nicht gestört wird. In Fig. 9 und auch bei der im übrigen dargestellten Ausführungsform ist angenommen, daß die Farbwalzen auf dem Mantel des zum größten Teile zylinderförmigen Fundamentes b in an sich bekannter Weise sich abwälzen und die hierbei verriebene Farbe auf die an der Abplattung des Fundamentes befindliche Druckform auftragen. Die Farbwalzen befinden sich also in beständiger Rotation um die Achse c des Fundamentes b, wobei dieselben infolge entsprechender federnder Lagerung sich auch an die abgeplattete Seite oder richtiger die Druckform anlegen. Der Weg der Farbwalzen ist durch die punktierte Linie d angedeutet. Um nun bei der Verschiebung des Fundamentes den Antrieb des Farbwerkes nicht zu stören, wird ein nachgiebiger Antrieb, z. B. eine mit Spannrolle versehene Kette, in Anwendung gebracht, welche sich selbsttätig je nach der jeweiligen Form des Fundamentes verkürzt oder verlängert.The foundation can be colored by the rollers in different ways, but care must be taken that the drive of the inking unit is not disturbed by the horizontal displacement of the printing form. In Fig. 9 and also in the rest of the embodiment shown, it is assumed that the inking rollers roll on the shell of the largely cylindrical foundation b in a manner known per se and apply the rubbed ink to the printing form located on the flattening of the foundation . The inking rollers are therefore in constant rotation around the axis c of the foundation b, and as a result of the corresponding resilient mounting, they also apply to the flattened side or, more correctly, the printing form. The path of the inking rollers is indicated by the dotted line d . In order not to disturb the drive of the inking unit when the foundation is moved, a flexible drive, e.g. B. a chain provided with a tensioner, brought into use, which is automatically shortened or lengthened depending on the respective shape of the foundation.

Die Bogenzuführvorrichtung ist so angeordnet, daß sie den Tiegel α umkreist, daß also die zum Transport der Bogen benutzten Organe in einem Kreislauf, der natürlich nicht an die geometrische Form eines Kreises gebunden ist, sich um den Tiegel herum bewegen. In Fig. 9 ist eine zweckmäßige Art dieser Bewegung dadurch herbeigeführt, daß gemeinschaftlich bewegte Greifer den durch die punktierte Linie / angedeuteten Weg beschreiben. Bei h wird das Papier auf irgend eine Weise in einen Greifer eingeführt und bei g auf beliebige Weise wieder abgelegt.The sheet feeding device is arranged in such a way that it encircles the crucible α, that is to say that the organs used for transporting the sheets move around the crucible in a circuit which is of course not tied to the geometric shape of a circle. In FIG. 9, an expedient type of this movement is brought about in that jointly moved grippers describe the path indicated by the dotted line /. At h the paper is inserted into a gripper in some way and at g it is deposited again in any way.

Zum weiteren Verständnis sei noch bemerkt, daß zwecks Einbringung der Schrift das Fundament b von Hand um die Achse c gedreht werden kann, so daß also die abgeplattete Seite nach oben liegt. Desgleichen kann auch zwecks Zurichtung der Tiegel α um die Achse i in derselben Weise gedreht werden. Doch steht natürlich während des DrückensFor further understanding it should be noted that for the purpose of introducing the writing, the foundation b can be rotated by hand about the axis c , so that the flattened side is facing up. Likewise, the crucible α can also be rotated about the axis i in the same way for the purpose of dressing. But of course stands while pressing

Claims

the crucible, while the foundation then only moves back and forth. The indicated processes are now effected in the following way. 5 'From a main shaft I provided with a flywheel k, the gear η is moved with the interposition of the gear m, which is attached to the rotatable axis i of the crucible α. With this gear ίο a crank ο is rigidly connected, which with the aid of a connecting rod p causes the back and forth movement of the foundation b. The connecting rod engages on axis c of the foundation. A corresponding facility is located on the other side of the machine. At each end of the axis c (Fig. 7) a roller q is attached, which is rigidly connected to the smaller rollers s and t by means of the cross member r. These small rollers move in a groove, while the larger roller can move back and forth in a cutout ν made in the machine frame. The foundation is thus prevented from tipping while pressing. However, if the foundation is to be turned over by hand for the purpose of introducing the script, a position is created in which the rollers j and t can be transferred into the arcuate neighboring grooves iv and χ. In this way you can then turn the foundation 900. The axle ends of the inking rollers are mounted in suitable bearing bodies y (Fig. 8) which are hinged to the ends of the levers ζ (Fig. 6). These levers are rigidly connected to chain wheels 1, which in turn can rotate loosely around the axis c of the foundation b. The chain wheels 1 are driven with the aid of the drive chain 2 from the chain wheels 3 seated on the axis of the toothed wheels m. By means of the tensioning rollers 4, 4, the chains 2 are kept in tension, even if the axis c shifts with the foundation b, so that a constant rotation of the inking rollers around the foundation is ensured. Four grippers 5, which are known per se, are provided for feeding and depositing the paper. So that these grippers now describe the path shown in FIG. 9, they are moved around the crucible α by means of the stars 6 attached to the driven axis i. However, the grippers are not attached directly to the ends of the arms of the stars 6. Rather, they sit on guide pieces 7, which can slide loosely in the approximately square grooves 8 of the fixed vertical plate 9. These guide pieces 7 are then with the arms of the stars. 6 articulated with the aid of the intermediate lever 10. As can be seen, the grippers are thus guided around the crucible a during the rotation of the stars 6, in that they roughly describe the outline of a square. At the same time, the grippers are given a position corresponding to the direction of the grooves 8 everywhere. At h they are inclined upwards so that the paper can be conveniently inserted At g they are given a position suitable for depositing. As already mentioned, how the feeding and depositing takes place is of secondary importance to the present invention takes place by means of the gripper 14 sitting on the swinging lever 13, while the stack is lying on the table 15. Patent-A ν Proverbs:

1. Platen printing press, characterized in that the one with a perpendicular Fixed crucibles provided with a printing surface from an automatic sheet feeder is encircled, and that the foundation, to enable the coloring by the rollers, of the crucible so is moved so that the printing form remains parallel to the crucible.

2 embodiment of a platen press according to claim 1, characterized in that the ends of the foundation axis by means of rollers (QST) in guide grooves (uv) moves back and forth, where required, the smaller rolls (st) in the connected arcuate grooves (wx) converted can be used to enable the foundation to be turned over for the purpose of correcting or inserting the printing form.

3rd embodiment of a platen printing press according to claim 1, in which the inking unit encircles the cylindrical foundation, characterized in that the inking unit by means of a flexible drive, for. B. one with tensioning rollers (4) provided chain drive (2) is set in rotation.

4. embodiment of a platen printing press according to claim 1, characterized in that that the gripper of the sheet feeder designed in an appropriate manner Cam groove (8) are guided.

For this purpose ι sheet of drawings.