DE7235379U - Imprinting work - Google Patents

Description

09

! Berlin61, ü.uci.str. 1711

Hermann Clauberg Maschinenfabrik (graphic machines) 1 Berlin 61, Gitschiner Strasse 91

Imprint

The innovation relates to an imprinting unit, with which one can change one while the printing machine is running name or sign to be printed, e.g. a company name, a newspaper title, a postal distribution number, Latest news or the like. In a printed product, such as a prospectus, newspaper, magazine or the like. can be made, in any printing process known today.

Impression mechanisms are already known which have several small cylinders, the engagement with a Sutsch clutch he follows.

These earlier impression units have, among other things, the disadvantage that they have to be switched on by a slip clutch and that the switching processes and the amount of waste were dependent on the skill of the operating personnel.

The innovation is based on the task of avoiding the previous disadvantages of these old impression works and a To create impression work, which the Umsehaltvorgange largely automatically.

The imprinting mechanism according to the innovation differs from known imprinting devices, i.e. from so-called

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EepeBchdruckwerken for the latest news etc. especially dcidüTuh, ClaS dSB EincLruCkrTS? ^ After ό. & Τ Nsuerun? It can also be used for machines of variable size that the width of the so-called forme cylinders of the imprinting unit correspond to the width of the printing machine and that it is a non-stop imprinting unit, which means that production does not stop.

To solve the aforementioned problem is an imprinting work for imprinting names, characters or the like. In the of the Main or production printing unit delivered printing web with several forme cylinders, characterized in that the Impression unit contains at least two forme cylinders, which can be adapted to the format-variable production machines are interchangeable.

The width of the forme cylinder or cylinders preferably corresponds to the width of the printing machine.

The printing cylinder is expediently mounted so as to be adjustable in order to enable the format to be adapted.

The cylinder can be pivoted within the adjusting device be stored in order to be able to carry out the on and off position during the printing process.

The pressure cylinder is generally via a clutch that works on the principle of a parallel crank mechanism drivable, so that an absolutely constant angular speed is guaranteed even during the shutdown process is.

Change gears can be provided to adjust the speed of the printing cylinder and in the event of any format changes adapt the speed of the inking unit to the new format.

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There are a preferably a plurality or subtraction with area code may be available · preset by means of which printed copies ei ^ e ^flr ewiin ^s not ^p number.

An advance warning device can be used to alert you to a certain preselectable number of fiest copies Generate advance warning signal.

Each forme cylinder can be automatically coupled with the continuously variable acceleration motor.

In general, there is at least one continuously variable acceleration motor, and preferably one as well electrically adjustable input register.

A coupling, preferably a Lin ^ ahnkupplung, can serve to accelerate the printing unit with the machine main shaft connect to.

The impression roller can be switched off at the counter reading ^w 0 ^H of the preselection counter or counters from a forme cylinder and can be set on the accelerated forme cylinder.

After the previous statements, there is the imprinting unit So generally from two forme cylinders with preferably one inking unit per machine in flexographic, letterpress, Offset or gravure printing process of which respectively a forme cylinder is employed on the common pivotable printing cylinder. The tensioning of the printing plates can with known winding plate tensioning devices the forme cylinder are made; however, saddle plates with stuck-on clichés can also be used. The printing unit can also be equipped with magnetic cylinders that have a tension of plastic klisehees with steel back or metal Gvtnmi clichés.

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The printing cylinder is adjustable in order to ensure the format adjustment. Within this Adjusting device, the cylinder is pivotably mounted about turning on and off during the printing process perform. This .Printing cylinder is via a working on the principle of a parallel crank mechanism Clutch driven, which ensures an absolutely constant angular speed - even during the shutdown process is. For this reason there are no voltage changes in the paper path during the switching process recorded. In the event of any format changes, the speed of the printing cylinder and the speed; of the inking unit adapted to the new format by means of change gears. The way in which the Non-stop printing is the following:

1. When the production machine is at a standstill, the Plates are placed on one, i.e. the 1st, forme cylinder.

2. tine protective device over this 1st cylinder is closed, to help the operating staff to set up the 2. Not to endanger the forme cylinder.

3. On a subtraction counter with preselection wirl the desired Number of print copies preset.

4-, The printing cylinder is attached to the prepared forme cylinder employed.

5. The whole production machine is running at working speed drove.

6. In the meantime, the clichés are placed on the 2nd forme cylinder.

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7. There is a 1st pre-warning signal for a certain selectable number of remaining copies.

8. There is a second pre-warning signal when a certain preselectable number of remaining copies is reached.

9. If the protective device is closed over the 2. Form cylinder. '

10. The pre-selection of the desired number of printed copies takes place on the 2nd subtraction counter.

11. As soon as a certain number of copies still to be printed is reached, the 2nd forme cylinder is automatically coupled with the continuously variable acceleration motor.

12 = The 2nd forme cylinder and the associated inking unit are accelerated to machine speed.

13 · The exact circumferential register required for coupling is set electrically,

14. Shortly before the desired number of copies is reached, the accelerated printing unit is preferably used with a Single tooth clutch with the main shaft of the machine tied together.

15. After the coupling process has been completed, the acceleration motor disengaged.

16. When the counter reading »Q ^M aes preselection counter, the milling machine is switched off from the 1st forme cylinder and started on the accelerated 2nd forme cylinder.

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17. The 1st impression unit is from the machine main shaft mechanical, separate and electrical and mechanical up to braked to a standstill. -When using aniline dyes or quick-drying letterpress inks, the inking unit is also disengaged and over a separate motor further driven so that the paint is prevented from drying out.

18. The protective device can be opened again and the printed forme cylinder can be filled with new clichés be provided.

The innovation is shown below with reference to the drawings, for example described.

In the drawings are:

Fig. 1 is a schematic representation of an impression unit according to the innovation with two inking units,

Fig. 2 is a schematic representation of an imprinting unit with a single inking unit, and

fig. 3 shows a schematic representation of the imprinting unit the facilities required for the function of the inking unit.

In FIG. 1, 1 denotes the printing cylinder for production, the line 2 with an arrow shows the direction of travel of the printed matter. The reference numerals 3 and 4 denote the forme cylinders of the Impression work, with the reference numerals 5 and 6, the applicator rollers are denoted. Numeral 7 indicates a Steel friction roller on and the reference numeral 8 also a Distribution roller. Numeral 9 denotes a transfer roller, while 10 denotes a steel friction roller, and

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the reference number 11 denotes a vibrator roller while with · 12 an ink fountain with the ductor roller 15 is identified is. As can be seen from the drawing, there is the forme cylinder 3 at this point in time in printing engagement with the web of printed product transported through the printing cylinder 1 2, while the other forme cylinder 4-, which in the meantime can be prepared for further printing, is, as can be seen, from the printing cylinder 1 at a distance.

After the printing has been completed by the forme cylinder, the imprinting unit can be switched over so that now the forme cylinder 3 is switched off and the forme cylinder comes to rest for imprinting.

The same process takes place in the execution of the imprinting unit according to FIG. 2, which, as can be seen, for the two upper forme cylinders contains a single ink fountain.

Since in this case the individual rollers and cylinders are the same, they have the same reference symbols as in Fig. 1 has been designated.

In Figure 3, an imprinting unit according to the innovation is schematically shown.

The individual parts are clearly indicated in FIG. 3 with designations, with K denoting the couplings, with W the change gears and with B a brake are designated.

8th -

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Claims (13)

- 8 claims for protection 1. Impression unit for printing names, characters or the like in the main or production printing unit delivered return track, with several forme cylinders, characterized in that the imprinting unit contains at least two forme cylinders (3, 4) which are used to adapt to the variable format production machines are interchangeable, 2. Impression unit according to claim 1, characterized in that the width of the forme cylinder or cylinders (3 »4-) is the width of the Printing press corresponds. 3 · Impression mechanism according to claim 1 and 2, characterized in that that the pressure cylinder (1) is adjustably mounted to to enable format adaptation. H-. -c indruckwerk claimed in any one of the preceding _claims% that is pivotally mounted within the adjusting device of the cylinder (1) to the arrival and to carry off position during the printing operation. 5. Impression unit according to one of the preceding claims, characterized in that the pressure cylinder (1) over a clutch working according to the principle of an? parallel crank get:? iebes can be driven, so that an absolute constant angular speed is guaranteed even during the parking process. 6. Impression unit according to one of the preceding claims, characterized in that change gears (W) are provided are to be able to change the speed of the printing cylinder (1) and the speed of the To adapt the inking unit or the inking units to the new format. - 9 - 723537921.1272 7. Impression unit according to one of the preceding claims, characterized in that one or more subtraction counters are present, preferably with preselection, by means of which a desired number of printed copies can be preset. 8. Impression unit according to one of the preceding claims, characterized in that an advance warning device is provided is to be selected at a specific ». number to generate a warning signal of remaining copies. 9 · Impression mechanism according to one of the preceding claims, characterized in that each forme cylinder (3 »4 ·) automatically can be coupled with an infinitely variable acceleration motor. 10. Printing unit according to one of the preceding claims, characterized by at least one steplessly adjustable acceleration motor. 11. Impression unit according to one of the preceding claims, characterized by eiä preferably electrically adjustable Circumferential register. 12. Impression unit according to one of the preceding claims, characterized by a coupling (K), preferably a single-tooth clutch, through which the accelerated printing unit can be connected to the main shaft of the machine * 13. Impression unit according to one of the preceding claims, characterized in that the impression roller when the counter reading "0" of the preset counter (s) of a forme cylinder (3) can be turned off and can be placed against the accelerated forme cylinder (4). 0 / G