DE594199C - Drying drum for rotogravure printing machines - Google Patents

Drying drum for rotogravure printing machines

Info

Publication number
DE594199C
DE594199C DEM117707D DEM0117707D DE594199C DE 594199 C DE594199 C DE 594199C DE M117707 D DEM117707 D DE M117707D DE M0117707 D DEM0117707 D DE M0117707D DE 594199 C DE594199 C DE 594199C
Authority
DE
Germany
Prior art keywords
drying drum
rotogravure printing
printing machines
paper web
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEM117707D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Winkler Fallert and Co AG Maschinenfabrik
Original Assignee
Winkler Fallert and Co AG Maschinenfabrik
Publication date
Priority to DEM117707D priority Critical patent/DE594199C/en
Application granted granted Critical
Publication of DE594199C publication Critical patent/DE594199C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0416—Drying webs by conduction
    • B41F23/042—Drying webs by conduction using heated rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/102—Combinations of transfer drums and grippers with pneumatic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)

Description

Bei Rotationstiefdruckmaschinen mit einer hinter jedem Druckwerk angeordneten Trokkentrommel verursachte das Einziehen einer neuen Papierbahn wegen der heißen Flächen der Trockentrommel erhebliche Schwierigkeiten. Um diese zu beseitigen, sind gemäß der Erfindung zum Halten der Papierbahn während des Einziehens Saugdüsen an dem Trommelumfang vorgesehen, während die hierzu erforderliche Saugpumpe mit dem für den langsamen Gang der Maschine verwendeten Hilfsantriebsmotor gekuppelt wird, so daß bei dem Einschalten dieses Motors die Saugpumpe ohne weitere Bedienung in Betrieb gesetzt wird,In rotogravure printing machines with a drying drum arranged behind each printing unit caused a new paper web to be drawn in because of the hot surfaces the drying drum considerable difficulties. To eliminate this, according to Invention for holding the paper web during the drawing-in suction nozzles on the drum circumference provided, while the suction pump required for this is used with the one used for the slow gear of the machine Auxiliary drive motor is coupled so that when this motor is switched on, the suction pump is put into operation without further operation,

An sich ist es bekannt, Zylinder und Leitwalzen bei Druckmaschinen mit Saugdüsen auszurüsten, die die Aufgabe haben, die Papierbahn an dem Umfange des ZylindersIt is known per se, cylinders and guide rollers in printing machines with suction nozzles equip, which have the task of the paper web to the circumference of the cylinder

o. dgl. ständig während des Arbeitens der Druckmaschine sicher festzuhalten. Solche Saugdüsen aber an der Trockentrommel einer Rotationstiefdruckmaschine anzubringen und die zugehörige Saugpumpe mit dem für den langsamen Gang der Maschine verwendeten Hilfsantriebsmotor zu kuppeln, bietet gegenüber dem Bekannten den Vorteil, daß das Einziehen der Papierbahn sehr erleichtert wird, weil es nunmehr nicht notwendig ist, die Papierbahn mit den Händen auf den heißen Trommelumfang zu pressen. Dadurch wird der Betrieb der Rotationstiefdruckmaschine sehr erleichtert und die Zeitversäumnis bei einem vorkommenden Reißen der Papierbahn verkürzt. Beim Arbeiten der Rotationstiefdruckmaschine üben die an der Trockentrommel sitzenden Saugdüsen auf die Papierbahn keine Wirkung aus.o. The like. Constantly while working the To hold the printing machine securely. Such suction nozzles, however, on the drying drum To attach rotogravure printing machine and the associated suction pump with the for the The auxiliary drive motor used to couple the slow gear of the machine offers opposite the friend the advantage that the pulling in of the paper web is made much easier because it is now not necessary to press the paper web with your hands onto the hot drum circumference. This stops the operation of the rotogravure printing machine very much easier and the time lost in the event of a break in the paper web is shortened. When working the rotogravure printing machine the suction nozzles on the drying drum have no effect on the paper web.

Auf der Zeichnung ist eine Trockentrommel gemäß der Erfindung beispielsweise in Abb. ι im Querschnitt und inIn the drawing, a drying drum according to the invention is for example in Fig. Ι in cross section and in

Abb. 2 im Längsschnitt veranschaulicht.Fig. 2 illustrates in longitudinal section.

Am Umfang der durch elektrische Widerstände oder in anderer Weise geheizten Trokkentrommel α sind Saugöffnungen b vorgesehen, die durch Leitungen c, d mit der hohlen Achse e verbunden sind, an die die Saugpumpe unmittelbar oder mittelbar angeschlossen wird. On the periphery of the drying drum α heated by electrical resistors or in some other way, suction openings b are provided which are connected by lines c, d to the hollow axis e to which the suction pump is connected directly or indirectly.

Bei dem Einziehen der Papierbahn wird deren Ende durch die Saugkraft an dem Trommelumfang festgehalten, so daß es durch das Drehen der Trockentrommel α um diese herumgeführt wird. Ein Berühren der heißen Flächen der Trockentrommel α mit den Händen ist daher beim Einziehen einer neuen Papierbahn nicht mehr notwendig.When the paper web is drawn in, its end is attached to the by the suction force Drum circumference held so that it by rotating the drying drum α to this is shown around. Touching the hot surfaces of the drying drum α with your hands is therefore no longer necessary when pulling in a new paper web.

Claims (1)

Patentanspruch:Claim: Trockentrommel für Rotationstief druckmaschinen, dadurch gekennzeichnet, daß zum Halten der Papierbahn während des Einziehens an dem Trommelumfang Saugdüsen (£>) vorgesehen sind, deren Saugpumpe mit dem für den langsamen Gang der Tiefdruckmaschine verwendeten Hilfsantriebsmotor gekuppelt ist.Drying drum for rotogravure printing machines, characterized in that suction nozzles are used to hold the paper web while it is being drawn in on the drum circumference (£>) are provided, their suction pump with the one for slow gear the auxiliary drive motor used is coupled to the gravure printing machine. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEM117707D Drying drum for rotogravure printing machines Expired DE594199C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM117707D DE594199C (en) Drying drum for rotogravure printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM117707D DE594199C (en) Drying drum for rotogravure printing machines

Publications (1)

Publication Number Publication Date
DE594199C true DE594199C (en) 1934-03-13

Family

ID=7328860

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM117707D Expired DE594199C (en) Drying drum for rotogravure printing machines

Country Status (1)

Country Link
DE (1) DE594199C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891395C (en) * 1935-04-18 1953-09-28 E H Wilhelm F H Koehler Dr Dr Production of ready-to-issue steel stamps using a rotary printing press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891395C (en) * 1935-04-18 1953-09-28 E H Wilhelm F H Koehler Dr Dr Production of ready-to-issue steel stamps using a rotary printing press

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