DE102007016223A1 - A method of operating a stapler of a web-fed printing machine - Google Patents

Abstract

The invention relates to a method for operating a stapler, in particular a wire stapler, a web-fed printing machine. According to the invention, a control command for the stapler is generated from a control of the cross-sectional register.

Description

The The invention relates to a method for operating a stapling apparatus, in particular a wire stapler, a web-fed printing machine according to the preamble of claim 1.

In Web-fed rotary printing presses are printing material webs in printing units printed. After printing on the printing material webs are the usual separated by longitudinal cutting into several partial webs, wherein in the field of so-called harps through slitting The printed substrate webs produced partial webs under formation several strands are stored on each other. It goes without saying also possible that uncut, printed substrate webs in Range of harps forming several strands on each other be filed.

The Strands are subordinated in the range of the harps Folding funnels provided with a longitudinal fold, wherein the longitudinally folded Strands in the area of a folder top to a total strand to be united. Of the total strand are in the range of a folding cassette, which is arranged downstream of the folder upper part, in the region of a cutting blade cylinder separated by cross-cutting specimens, which by cross-cutting of Total strand separated specimens subsequently in the Falzkassette be crossfolded.

Between the formers and the folding cassette is usually at least one stapler arranged to printing material webs or Part webs by wire stapling or by gluing or by perforating in the sense of stitching together. A stapler, in which a wire stitching is done, is also called Drahtheftapparat designated.

As already mentioned, in the area of the cutting knife cylinder of the folding cassette, individual pieces are separated from the total strand by cross cutting, wherein it is important that the edge of the copies produced by cross cutting has a defined distance from the printed image. This defined distance of the edge of the copies produced by cross-cutting from the printed image of the same is also referred to as cross-sectional register. The regulation of the cross-section register is already state of the art. To this is on the EP 1 074 501 B1 refer.

Then, if by means of a cross-section register control the cross-section register is regulated, this can have an effect on the stapler since If necessary, the location of the staple in the copy changed. This is particularly problematic when starting up or shutdown of the web press the cross-section register is subject to a major change. In this case Then a lot of waste is generated in the stapler. So far From the prior art known no solutions to this Take problem into account.

Of these, The present invention is based on the object, a novel method for operating a stapler of a To create web printing press. This task is performed by a procedure solved according to claim 1. According to the invention from a control of the cross-section register a control command generated for the stapler.

With the present invention is proposed for the first time, the Operation of a stapler depending on the cross-section register control to control. This can especially during startup and shutdown The web press is producing waste paper in the stapler be avoided.

According to an advantageous embodiment of the invention, a control signal for adjusting or adjusting the stapler is determined depending on a control signal of the cross-sectional register control according to the formula X _HA = k · X _QSR , where X _{HA is} the control signal for adjusting the stapler, where X _{QSR is} the control signal is the cross-sectional register control, and where k is a printing press-dependent proportionality factor.

preferred Further developments of the invention will become apparent from the dependent claims and the description below. An embodiment The invention will be described below without limitation explained in more detail. Showing:

1 : is a block diagram to illustrate the method according to the invention for operating a stapling apparatus of a web-fed printing machine.

Hereinafter, the present invention will be described with reference to the block diagram of 1 described in detail. In the block diagram of 1 are shown in solid lines from a cross-sectional register control known elements or assemblies of a printing press, namely a cross-section register controller 10 based on a control deviation between an actual value Y _{QSR, is} the cross-sectional register and a setpoint Y _QSR, the cross-section register is a manipulated variable X _QSR for actuators 11 generates the cross-section register control.

For the purposes of the present invention, it is proposed based on the cross-section register terregelung a control command for a stapler, in particular a wire stapler, to generate the web-fed rotary printing press, so that the stapling is done in the stapler depending on the cross-sectional register control, namely, is controlled.

So shows 1 in that from the manipulated variable X _{QSR of} the cross-sectional register control by means of a device 12 a control signal X _HA to control and thus adjustment of a stapler 13 is generated. It is therefore within the meaning of the present invention to derive an actuating signal for the stapler from the manipulated variable of the cross-sectional register control.

According to an advantageous development of the present invention, the control signal X _{HA is used} to control the stapler 13 determined according to the following formula: X HA = k × QSR where X _{HA is} the control signal for controlling the stapler, where X _{QSR is} the control signal of the cross-sectional register control, and where k is a printing machine-dependent proportionality factor.

The inventive method for operating a Stapler is preferably used in wire staplers, However, the same can also be used in such staplers, in which a stapling is done by gluing or perforating. Especially during startup and during Shut down the web press with help the inventive method generating be avoided by waste in the stapler.

10

regulator the cross section register regulation

11

actuator the cross section register regulation

12

Facility

13

stitcher

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1074501 B1 [0005]

Claims (4)

Method for operating a stapler, in particular a wire stapler, a web-fed printing press, characterized in that from a control of the cross-section register, a control command for the stapler is generated. Method according to claim 1, characterized in that that the stapling in the stapler depends on the scheme the cross-section register is controlled. Method according to claim 1 or 2, characterized that a control signal for controlling the stapler dependent generated by a control signal of the cross-sectional register control becomes. A method according to claim 3, characterized in that the control signal for controlling the stapler is determined according to the formula X _HA = k × X _QSR , where X _{HA is} the control signal for controlling the stapler, where X _{QSR is} the control signal of the cross-sectional register control, and wherein k is a printing machine-dependent proportionality factor.