Printing press without paper during power failure and method of operating the printing press
AssigneeHeidelberger Druckmaschinen AG
InventorsFranz Haaf, Klaus-Dieter Kleibaumhüter, Helmut Meyer, Werner Stadler
Life of this patent
Estimating the term…
Abstract
An electrical voltage supply device for machines processing printing material includes at least one drive motor for the transport of printing material and at least one further electrical consumer. A control unit is provided which, when the supply voltage drops below a minimum acceptable supply voltage of the machine processing printing material, switches of electrical consumers which are not required for the transport of printing material and supplies the drive motor for the transport of printing material from energy stored in the moving masses of the machine processing printing material.
Claims19
An electrical voltage supply device for a machine processing printing material, the machine having at least one drive motor for transporting the printing material and further electrical consumers, the electrical voltage supply device comprising:
- a control unit which, when a supply voltage drops below a minimum acceptable supply voltage of the machine processing the printing material, switches off the further electrical consumers which are not required for the transport of the printing material and supplies the drive motor for the transport of the printing material from energy stored in moving masses of the machine processing the printing material;
- said control unit stopping a supply of the printing material to the machine processing the printing material when the supply voltage drops below the minimum acceptable supply voltage and conveying the printing material remaining in the machine processing the printing material through the machine processing the printing material;
- and
- the machine processing the printing material is a sheet-fed rotary printing press and the printing material are sheets.
A sheet-fed rotary printing press, comprising:
- at least one drive motor for transporting printing material being sheets;
- electrical consumers;
- and
- an electrical voltage supply having a control unit which, when a supply voltage drops below a minimum acceptable supply voltage of the printing press processing the printing material, switches off said further electrical consumers which are not required for transporting the printing material and supplies said drive motor for transporting the printing material from energy stored in moving masses of the sheet-fed rotary printing press processing the printing material, said control unit stopping a supply of the printing material to the sheet-fed rotary printing press when the supply voltage drops below the minimum acceptable supply voltage and conveying the printing material remaining in the printing press through the printing press.
A method of operating a sheet-fed rotary printing press processing printing material, the sheet-fed rotary printing press having at least one drive motor for transporting the printing material, a control unit and further electrical consumers, which comprises the steps of:
- programming the control unit such that, when a supply voltage drops below a minimum acceptable supply voltage of the sheet-fed rotary printing press, the control unit switches off the further electrical consumers which are not required for transporting the printing material and supplies the drive motor for transporting the printing material with energy stored in moving masses of the sheet-fed rotary printing press;
- and
- stopping, via the control unit, a supply of the printing material to the sheet-fed rotary printing press when the supply voltage drops below the minimum acceptable supply voltage and conveying the printing material remaining in the sheet-fed rotary printing press through the sheet-fed rotary printing press.
Dependencies are inferred from the claim text.