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Method for operating printer safely and printer for executing this method

A technology for safe operation and printing machines, applied to general parts of printing machinery, printing machines, printing, etc., can solve problems such as unsuitable printing machines, and achieve the effect of avoiding collisions

Inactive Publication Date: 2009-07-08
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the method by which this safety device works is not suitable for all printing presses

Method used

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  • Method for operating printer safely and printer for executing this method
  • Method for operating printer safely and printer for executing this method
  • Method for operating printer safely and printer for executing this method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] exist figure 1 and figure 2 In the embodiment shown in the printing press 11 comprises a first cylinder 13 and a second cylinder 14 . Each cylinder 13 , 14 is a cylinder, for example an impression cylinder or a transfer cylinder, which transports a sheet 12 formed from a printing material. The first drum 13 is rotationally driven by a first motor 15 and the second drum 14 is rotationally driven by a second motor 16 .

[0024] A first safety cam 17 and a first cam follower 19 are installed on the first roller 13 , and a second safety cam 18 and a second cam follower 20 are installed on the second roller 14 . These cam followers 19, 20 are rollers. Each safety cam 17 , 18 has a recess 21 with a front running side wall 22 and a rear running side wall 23 in the direction of rotation. Each cylinder 13 , 14 has a cylinder channel 26 with a gripper system 27 arranged therein.

[0025] The respective gripper system 27 comprises a gripper 4 and a gripper support 5 , betwee...

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PUM

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Abstract

The process involves including a printing machine containing two cylinders driven by respective motors. Sheets of paper are accepted or delivered from or to the one of the cylinders by a gripper system (27). The gripper system is retracted far enough into one of the cylinders such that collision of the gripper system with the other cylinder is eliminated when deviation occurs in synchronized running between the cylinders. An independent claim is also included for a printing machine comprising two cylinders driven by respective motors.

Description

technical field [0001] The invention relates to a method for the safe operation of a printing press, wherein a first cylinder is driven by a first motor and a second cylinder is driven by a second motor, the first cylinder being received from the second cylinder by means of a gripper system sheet or transfer the sheet to this second cylinder. Furthermore, the invention relates to a printing machine for carrying out the method described above, the printing machine comprising: a first cylinder with a gripper system, a first electric motor for driving the first cylinder, a second cylinder and a A second electric motor drives the second roller. Background technique [0002] The invention arises from the background that a sheet-fed printing press comprises a cylinder with a gripper system for holding the sheets. In some sheet-fed printing machines, such cylinders adjacent to each other are mechanically coupled to each other by pairs of gears, so that the cylinders can be driven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F21/10
CPCB41F21/10B41P2233/20
Inventor 亨德里克·弗朗克卡尔-海因茨·黑尔姆施泰特约亨·贝希特勒斯特凡·迈尔马蒂亚斯·内尔
Owner HEIDELBERGER DRUCKMASCHINEN AG